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To commemorate the 500th anniversary of Raphael's death, the Galleria Borghese in Rome utilized reflective Hyperspectral Imaging (HSI) combined with Macro X-ray Fluorescence (MA-XRF) to complete a full-frame, sub-millimeter non-destructive inspection of the Renaissance masterpiece "The Deposition" (Baglioni Entombment). This technology is like giving a famous painting a "non-invasive spectral CT scan," penetrating the pigment layers to reveal underdrawings, traces of modification, and pigment codes hidden for over 500 years, allowing us to understand the master's entire creative process.     I. What is Hyperspectral Imaging?   Hyperspectral imaging, simply put, is a "two-in-one" of "imaging + spectroscopy." It doesn't just capture a picture; it records the complete spectral information of every pixel from visible light to short-wave infrared (400–1700 nm), turning an ordinary photo into a three-dimensional data cube available for deep analysis.   The Visible-Near Infrared-Shortwave Infrared hyperspectral scanner used in this study was specifically designed for cultural relics: it adopts push-broom scanning with extremely high resolution, and the illumination is concentrated only on a narrow area, causing almost no damage to the painting; even when facing curved wooden panels, clear imaging can be guaranteed through optical correction. The research team scanned the entire painting in 8 segments and then precisely stitched them together to obtain ultra-large spectral data, achieving full-frame, zero-dead-angle analysis, completely moving away from the limitations of traditional single-point sampling.   II. Seeing Raphael's "Invisible Creations"   The greatest capability of hyperspectral imaging is seeing underlying information invisible to the naked eye. With the help of algorithms such as Principal Component Analysis (PCA) and Minimum Noise Fraction (MNF) to process spectral data, "invisible content" within the frame emerges one by one.   In the background sky, spectral processing unexpectedly discovered covered early landscapes: originally clearly outlined trees and vegetation were later softened by Raphael to blend into the blue sky, making the space feel more profound; the shapes of the mountains also changed from sharp to rounded. These traces of modification in the middle pigment layers are key evidence difficult to capture with traditional infrared or X-rays, directly restoring the master's composition adjustment process.   Even more startling is the underlying sketch. Traditional infrared reflectography can only see carbon-based lines clearly, while hyperspectral imaging—by selecting optimal infrared bands and synthesizing false-color images—clearly presents finer underdrawings: hatching on the male characters' faces and heavy outlines on the Virgin Mary's cheeks and lips, which were previously completely hidden. This proves that Raphael's underdrawings were completed in multiple stages using different materials, making the creative process far more complex than imagined.     III. Hyperspectral + XRF Cracks the Red Pigment Code   Hyperspectral imaging alone cannot fully determine pigment components; when used in conjunction with MA-XRF, they form a "molecular spectroscopy + elemental analysis" golden duo, precisely cracking the core red code of this painting.     Researchers used Spectral Angle Mapping (SAM) to divide the red into three types of spectral characteristics: two types corresponding to red lakes and one type corresponding to vermilion. Then, by cross-referencing the element distribution map from X-ray fluorescence: mercury (Hg) signals only appeared in the vermilion areas, potassium (K) signals confirmed the red lakes, and iron (Fe) was unrelated to the red, excluding iron oxide red.     Ultimately, it was confirmed: Raphael used only two red materials, vermilion and red lake, and used three techniques—single-layer thick application, multi-layer glazing, and red lake over vermilion—to create rich layers. Only the core figure, Grifonetto, used "vermilion base + red lake glazing" to highlight his status. This rigorous yet ingenious way of using color was revealed completely for the first time.   IV. The Future Core Technology of Cultural Relic Protection   This cross-border cooperation between technology and art fully demonstrates the unique value of hyperspectral imaging in cultural relic protection: completely non-destructive, deep penetration, global analysis, and data archivability.   It requires no sampling and no damage to the painting to excavate underdrawings, layering, pigments, and restoration traces, becoming a standard tool for museum research, restoration, and digital protection.   From invisible underdrawings to covered compositions and then to precise pigment formulas, hyperspectral imaging lets masterpieces "speak" their creative stories. It is not just a cutting-edge technology, but a bridge connecting art history and materials science, protecting and decoding mankind's most precious cultural heritage in the gentlest way.

In the sesame processing industry, mechanized harvesting has become a key means to improve production efficiency. However, seed damage generated during the mechanized harvesting process directly affects the quality characteristics of subsequent sesame oil and sesame paste. Color, as a core indicator of product sensory quality, not only affects consumers' willingness to purchase but also directly reflects the quality of raw materials and the stability of processing technology. Research shows that mechanical harvesting damage accelerates lipid oxidation during sesame storage, leading to a darker, more yellowish, and reddish color in sesame oil, while sesame paste exhibits a lighter color and increased fluctuations in color difference. Traditional manual sensory evaluation methods are heavily influenced by subjective factors, making it difficult to quantify color differences and unable to meet the requirements for quality consistency in large-scale production. In addition, the color of sesame products is closely related to factors such as roasting degree and storage time, requiring precise detection tools to capture subtle color changes. CHNSpec Technology's CS-821N spectrophotometer adopts the principle of spectral color measurement, which can objectively output color parameters such as L, a, and b, transforming visual perception into quantifiable data. This provides a scientific color control solution for sesame processing enterprises, helping them stabilize product quality and optimize production processes.   I. Objectively quantifying the subtle color differences of sesame oil   In order to objectively and accurately evaluate the color differences of sesame oil, researchers used the CHNSpec Technology CS-821N spectrophotometer. The instrument is based on the colorimetric system recommended by the CIE (International Commission on Illumination). By measuring the spectral data of the sample's reflection or transmission, it calculates the precise value in the color space.   In this study, the CS-821N was used to detect the color parameters of all sesame oil samples. The specific operations are as follows:   1.Sample preparation: Sesame oil samples were made from mechanically harvested sesame and manually harvested sesame with different storage periods respectively.   2.Color measurement: Using the CS-821N spectrophotometer under standard light source conditions, the L, a, and b values of each oil sample were measured. Among them:   L value represents lightness; a larger value indicates a whiter and brighter color. a value represents red-green degree; a positive value indicates a reddish tint, and a negative value indicates a greenish tint. b value represents yellow-blue degree; a positive value indicates a yellowish tint, and a negative value indicates a bluish tint.   Through this method, researchers obtained precise and repeatable color data, avoiding the subjectivity of naked-eye observation and providing a solid foundation for subsequent data analysis and conclusions.   II. Color change laws revealed by CS-821N   Experimental data clearly revealed the influence of different processing raw materials on the color of sesame oil through the measurement results of the CS-821N:   1.Mechanical harvesting leads to deeper color: Compared with manually harvested sesame, the sesame oil produced from mechanically harvested sesame generally has lower L values and higher a and b values. This indicates that the sesame oil made from mechanically harvested sesame is darker in color and tends toward red and yellow tones. This may be because mechanical harvesting damage leads to the rupture of the sesame seed coat. During the roasting process, the internal sesame kernels can contact heat more directly, resulting in a more sufficient Maillard reaction, thus forming a deeper color.   2.The trend of color change can be quantified: In subsequent accelerated storage experiments, the CS-821N also captured the dynamic changes in the color of sesame oil during the storage process. The L values of all oil samples decreased with the extension of storage time, and the a values increased, manifesting as a further deepening and reddening of the color. The precise values provided by the CS-821N enabled researchers to objectively describe the appearance changes during this oxidation process.     III. Application value   The application of the CHNSpec CS-821N spectrophotometer in the sesame processing industry has realized the transformation of color evaluation from subjective to objective. Through quantified color data, enterprises can precisely control the quality of raw materials, optimize processing technology, and stabilize the quality of finished products, effectively responding to the quality fluctuation challenges brought by the processing of mechanically harvested sesame. The instrument's characteristics of convenient operation and efficient detection adapt to the rapid detection needs of production lines, while the data traceability function provides strong support for corporate quality management.   In the sesame processing industry pursuing quality standardization, the CHNSpec CS-821N spectrophotometer, with its precise detection performance, has become an important tool for enterprises to control the sensory quality of products, helping the industry achieve the dual goals of large-scale production and stable quality.

 I. Limitations of traditional visual inspection   Flexible Printed Circuit Boards (FPCB) are widely used in fields such as smartphones, flexible displays, and wearable devices due to their good bendability and heat dissipation capabilities. As circuit density continues to increase, the types of surface defects are becoming increasingly complex, with common defects including short circuits, open circuits, protrusions, white spots, black spots, and broken holes.   In traditional detection methods, template matching based on RGB images is widely used. This method locates abnormal areas by comparing a standard image with the image under test. However, these methods are sensitive to lighting conditions; when the light distribution is uneven, it is easy to produce false detections or missed detections. In addition, some defects are morphologically similar to normal circuit structures, making it difficult to distinguish them accurately relying solely on visible light images.     II. Construction of the hyperspectral imaging system   To improve the stability of detection, this study built a hyperspectral microscopic imaging system. The system consists of a hyperspectral camera, a microscope, and acquisition software. Among them, the hyperspectral camera adopts the FS-23 model from CHNSpec, which features a spectral range of 400–1000nm and a spectral resolution of 2.5nm.   The camera uses a line-scanning method for imaging, and the raw data contains 1200 bands. To facilitate processing, every four adjacent bands were merged into one in the study, finally obtaining a data structure of 300 bands. The size of a single hyperspectral image is 1920 × 960 pixels × 300 bands, covering the complete spectral information of the copper conductor and the polyimide substrate.   The advantage of hyperspectral imaging lies in its ability to obtain a continuous spectral curve for each pixel. The study found that there are significant differences in the spectral response of copper and polyimide in the 500–750nm wavelength range, which provides a reliable basis for subsequent image segmentation and material identification.     III. Spectral information-driven detection method   The detection framework proposed in this study consists of two sub-networks: FPCB-LocNet for defect localization and FPCB-ClaNet for defect classification.   In the localization stage, FPCB-LocNet utilizes multi-scale 3D convolution kernels to extract features from both spatial and spectral dimensions simultaneously. Two different sizes of convolution kernels are used in the network to focus on local spatial structures and spectral features respectively, and features of different scales are fused through a residual structure. This design allows the network to capture fine spatial textures and continuous spectral changes at the same time, achieving pixel-level segmentation of copper and polyimide. After segmentation is completed, abnormal areas are located through template matching.   In the classification stage, considering the limited number of hyperspectral samples, the network adopts a transfer learning strategy, first pre-training on the FPCB RGB image dataset and then fine-tuning on pseudo-color images. Aiming at the problem of unbalanced sample numbers for different defect categories, category-balanced sampling and weight decay strategies are introduced in the network to enable the model to focus more on defect types with fewer samples. At the same time, the SE attention mechanism is embedded to enhance the network's focus on key features.     IV. Experimental results and application value   In terms of image segmentation, FPCB-LocNet performs better than traditional segmentation methods such as entropy method, watershed algorithm, and Otsu when processing images with uneven lighting, with a segmentation accuracy reaching 97.86%. In the classification task, the comprehensive classification accuracy of FPCB-ClaNet for six common types of defects is 97.84%.     Ablation experiments verified the actual contribution of each module: data augmentation improved classification accuracy, category-balanced sampling and weight decay effectively improved the recognition effect of tail categories, and the SE attention mechanism brought a stable improvement in classification performance while adding a small number of parameters. The visualization results of Grad-CAM heatmaps show that the model's areas of concern are highly consistent with the actual defect locations.   This study combines hyperspectral imaging with deep learning to build a complete processing chain from data acquisition, image segmentation, and defect localization to defect classification. This method can stably complete the identification task of FPCB surface defects without relying on specific lighting conditions, providing a feasible technical path for the manufacturing quality management of high-density flexible circuit boards.   Product Recommendation: FigSpec FS-23 Imaging Hyperspectral Camera ● Image Resolution: 1920*1920 ● Spectral Range: 400-1000nm ● Spectral Resolution (FWHM): 2.5nm ● Number of Spectral Channels: 1200

  Recently, the national standard Printing Technology—Color and Transparency of Four-Color Printing Inks—Part 2: Coldset Web Offset Printing (Plan No.: 20232426-T-421), led and primarily drafted by CHNSpec, has been officially approved and released. This standard is administered by the National Printing Standardization Technical Committee (TC170) and supervised by the National Press and Publication Administration (National Copyright Administration). Its implementation will inject critical momentum into the standardized and internationalized development of color quality control in China’s printing industry.   As a technical specification that is identical to the international standard ISO 2846-2:2007, this standard precisely focuses on the core indicators of color and transparency of four-color printing inks in coldset web offset printing scenarios. It successfully fills the gap in China’s seamless alignment between technical requirements in this segmented field and advanced international standards, helping elevate the industry’s technical level to international benchmarks.   Throughout the entire standard development process, CHNSpec fully leveraged its technical expertise and accumulated strengths in spectral measurement and colorimetric calculation, serving as a core technical support contributor. Drawing on many years of in-depth practice in the field of color measurement, the team deeply participated in the optimization of test methods for color uniformity and transparency tailored to the characteristics of coldset web offset inks. In particular, in key aspects such as measurement accuracy control and data repeatability verification, CHNSpec provided a large amount of detailed and reliable practical data, laying a solid foundation for the scientific rigor and practicality of the standard. CHNSpec worked closely with Shandong Taibao Information Technology Group Co., Ltd., Anhui Xinhua Printing Co., Ltd., Xi’an University of Technology, and other drafting organizations. Through multiple rounds of technical discussions, laboratory validation, and text revisions, all parties jointly promoted the continuous improvement of the standard content, ensuring that it not only meets real-world industry application needs but also maintains strict technical authority.  

Shortly after the ChinaCoat exhibition opened, the CHNSpec booth was already “surrounded” by crowds! The sounds of inquiries and explanations intertwined into the liveliest melody, instantly pushing the first-day popularity to its peak. CHNSpec proved its brand strength with genuine, tangible popularity.     In the core exhibition area, the AI large-model coating color-matching system was packed with visitors eager to experience it. By simply importing a sample color card, the system could generate an accurate formula within seconds, improving efficiency by 80% compared with traditional methods. While operating the system, staff members explained its features, and their notebooks quickly filled with customer notes such as “automotive paint adaptation requirements” and “on-site trial after the exhibition.” The seats in the discussion area were never empty.     The adjacent multi-angle spectrophotometer exhibition area was even more bustling. As a dedicated color measurement solution for metallic and pearlescent paints, it leverages 12-angle measurement technology to solve color deviation issues caused by varying light angles in such special coatings. As soon as it was unveiled, it was immediately surrounded by customers from the coatings industry. “Batch color differences in pearlescent paint have always been our pain point. This device can accurately capture color difference values from different viewing angles—it’s truly practical!” said a technical director from a coatings factory while quickly taking notes during the demonstration, and he scheduled an in-depth technical exchange for the next day on the spot.     The DS-36D series spectrophotometer was particularly eye-catching. During the live demonstration, when the engineer announced the technical parameter “repeatability accuracy up to dE*ab ≤ 0.005,” it immediately sparked a wave of amazement. After repeatedly comparing the data, a customer from the automotive parts industry gave a thumbs-up and said, “This is exactly the kind of precision equipment we need to solve our batch color difference problems,” and promptly left a detailed requirement list for further in-depth collaboration.     From the first light of morning to the fall of dusk, the wave of inquiries at the CHNSpec booth never slowed down. Seats at the consultation desk were constantly “in short supply.” As soon as technical engineers finished answering parameter questions for one customer on the left, new visitors on the right were already waiting with samples in hand. Promotional material racks were emptied and replenished again and again, while registration forms grew thicker page by page. Some long-term clients came specifically with cooperation plans, while new partners attracted by the brand’s reputation stopped for in-depth discussions. Voices of consultation from different industries intertwined, and every business card exchanged carried potential collaboration opportunities. The busy yet vibrant scene was truly the most beautiful landscape of the exhibition.

Recently, the China General Chamber of Commerce officially released the announcement of the selection results for the “2025 China General Chamber of Commerce Science and Technology Awards.” With its technological innovation achievement “Spectrophotometer Based on a Hyperspectral Imaging System,” CHNSpec successfully won the First Prize of the Technology Invention Award, demonstrating the company’s solid technical strength and industry-leading position in the field of color measurement technology.   As an important award in China’s commercial science and technology sector, the China General Chamber of Commerce Science and Technology Award features a rigorous and standardized evaluation process. Candidates must be recommended by local chambers of commerce, industry associations, research institutions, and higher education institutions, and then pass multiple stringent stages including preliminary evaluation, expert review, evaluation committee approval, and public announcement. Award-winning projects represent a high level of technological innovation and application value in their respective fields. In this selection, a total of 143 Technology Invention Awards were granted, with only 41 First Prizes. CHNSpec’s award-winning project stood out among numerous entries thanks to its breakthrough technological innovation.   Since its establishment, CHNSpec has consistently focused on the R&D and innovation of color measurement and optical detection technologies. The company has built a research and development team composed of senior industry experts and technical backbones, adhered to a market-demand-oriented approach, and continuously invested in tackling core technologies. This award is a high-level recognition of the company’s long-term commitment to scientific and technological innovation, and an important achievement of its development philosophy of “building the enterprise through technology and driving growth through innovation.”   Looking ahead, CHNSpec will continue to deepen its efforts in core technology research and development, increase investment in scientific research, and continuously optimize product performance and application solutions. Through more high-quality technological innovation achievements, the company aims to empower the development of various industries and contribute greater strength to the advancement of China’s commercial science and technology and industrial upgrading.    

Recently, the Zhejiang Provincial Department of Economy and Information Technology released the Notice on Announcing the “2025 Zhejiang Province First-Edition Software Product Application and Promotion Guidance Catalog” (Zhejiang Economic and Information Software Service [2025] No. 362). The independently developed “Hyperspectral Data Acquisition, Modeling and Analysis Software” by CHNSpec (Zhejiang) Co., Ltd. was selected as a key first-edition software product promoted by Zhejiang Province.   CHNSpec (Zhejiang) Co., Ltd. is a “Specialized, Sophisticated, Distinctive, and Innovative” little giant enterprise focusing on spectral technology and digital modeling. The selected “Hyperspectral Data Acquisition, Modeling and Analysis Software” directly addresses industry pain points such as “difficulty in data acquisition, complexity in modeling, and low analytical accuracy” of hyperspectral data. It achieves expanded compatibility at the data acquisition stage, algorithm optimization in the modeling process, and visual presentation of analysis results. The software can be widely applied in scenarios such as industrial non-destructive quality inspection, agricultural crop growth monitoring, and precise identification of environmental pollutants. It effectively improves operational efficiency and the application value of data in related fields, supporting the digital transformation and upgrading of industries.    

  On the track of precision optics and spectroscopic technology, “micron-level” precision control often begins with the protection of “cleanroom-grade” production environments.   In 2020, the dual-base ultra-cleanroom laboratories invested and built by ***the “Specialized, Sophisticated, Distinctive, and Innovative Little Giant” enterprise CHNSpec were officially put into operation. Today, this “clean fortress” rooted in the two major production workshops in Hangzhou and Taizhou has reached the important milestone of five years of successful operation. Over the past five years, with high-standard hardware configurations and comprehensive authoritative system certifications, it has built a solid barrier for the manufacturing of core products and has become a vivid testament to CHNSpec’s deep commitment to precision manufacturing and its unwavering dedication to quality.   As a technology enterprise focused on the research, development, and production of precision optical inspection equipment, CHNSpec is well aware that for precision optical components, a single speck of dust or a slight temperature difference can become a “fatal hidden risk” affecting product performance. For this reason, the dual-base ultra-cleanroom laboratories were constructed with a total floor area exceeding 500 square meters. With a layout featuring “division of labor, collaboration, and full-domain controllability,” they achieve dual guarantees of production capacity and quality: the Hangzhou workshop focuses on the manufacturing of core components, controlling component precision from the source; the Taizhou workshop undertakes finished product assembly and testing, ensuring that final product quality meets standards.   The laboratories strictly adhere to the Class 100,000 cleanroom standard, with no more than 100,000 airborne particles of 0.5 microns or larger per cubic meter, fundamentally avoiding contamination risks and safeguarding the precision and stability of every device delivered from the factory.   To achieve precise environmental control, robust equipment is the key support. CHNSpec’s ultra-cleanrooms are fully equipped with TICA purification units, which integrate high-efficiency filtration, precise temperature control, and constant humidity regulation. These systems can stabilize workshop temperatures within 20–24°C and control relative humidity within the ** range of 45%–65%, providing constant and suitable environmental conditions for the processing, assembly, and calibration of precision components.   At the same time, the laboratories have established a comprehensive environmental monitoring system, regularly inspecting key indicators such as particulate content, temperature, and humidity to ensure that the clean environment continuously meets standards. This ensures that “ultra-clean standards” are not merely a written commitment, but a rigid guideline running through the entire production process.   Beyond hardware, system certification is another layer of assurance for the high-standard operation of the ultra-cleanrooms. At present, CHNSpec’s production centers have passed three major authoritative system certifications: ISO9001:2015 Quality Management System Certification, ISO14001:2015 Environmental Management System Certification, and ISO45001:2018 Occupational Health and Safety Management System Certification.   This signifies that the operation of the ultra-cleanrooms not only meets the stringent cleanliness requirements of product manufacturing, but also achieves comprehensive standardized management in quality control, environmental compliance, and employee health and safety, vividly interpreting the company’s development philosophy of “quality first, responsibility foremost.”   Core Configuration of CHNSpec Dual-Base Ultra-Cleanrooms   Configuration Dimension Detailed Information Layout and Scale Covering two major production workshops in Taizhou and Hangzhou, with a total floor area exceeding 500 square meters Cleanliness Level Class 100,000 constant temperature and humidity standard Core Equipment Purification units (high-efficiency filtration, precise temperature and humidity control) System Certifications ISO9001:2015 Quality Management System Certification ISO14001:2015 Environmental Management System Certification ISO45001:2018 Occupational Health and Safety Management System Certification   Five years of dedicated cultivation, with no pause in progress. The stable operation of the dual-base ultra-cleanrooms is an important milestone for CHNSpec in the field of precision manufacturing, and a direct reflection of the company’s technical strength and pursuit of quality.   Looking ahead, CHNSpec will continue to operate its ultra-cleanroom facilities to high standards, continuously optimize production processes and quality control systems, and provide global customers with more precise and reliable optical inspection products—steadily advancing on the path of precision manufacturing and writing a dual answer sheet of quality and innovation.

Recently, the research achievement titled “Analysis of the Color-Changing Performance of Adaptive Thermochromic Coatings and Its Influencing Factors”, jointly completed by the Army Artillery and Air Defense Academy together with Fudan University, PLA Unit 32139, and other institutions, was officially published in the journal Coatings and Protection (Issue No. 10, 2025). In this study, CHNSpec precision Spectrophotometer served as the core testing equipment, providing accurate data support throughout the entire process of coating color-change performance testing, and helping the research team achieve key breakthroughs in the field of dynamic camouflage technology.     Urgent Demand for Dynamic Camouflage, Color Detection Becomes the Technical Core     Traditional military camouflage equipment mostly adopts static technologies. Once the camouflage color is fixed, it cannot be adjusted. When facing seasonal changes or environmental variations, manual replacement is required, and improper timing can easily lead to exposure of military targets. Adaptive thermochromic coatings, as a core technological pathway for dynamic camouflage, can automatically adjust color according to environmental changes such as temperature and illumination, achieving real-time integration with the background. However, issues such as color-change stability, weather resistance, and aging have long been key bottlenecks in engineering applications.   Precise quantitative detection of color parameters is the core step to solving this problem. The research team needed to accurately measure changes in brightness and chromaticity of the coatings under different conditions and analyze the evolution of color difference in order to clarify the influence mechanisms of key factors such as resin type, coating thickness, and light source wavelength. With its high resolution and high stability detection advantages, CHNSpec precision Spectrophotometer became the designated color detection equipment for this study.   Precise Quantification + Full-Process Support, CHNSpec Instruments Solve Detection Challenges   During several months of experimental research, CHNSpec precision Spectrophotometer undertook multi-dimensional color detection tasks: by measuring the colorimetric parameters (L, a, b values) before and after coating color change, accurately calculating the total color difference ΔE, and providing quantitative evidence for the selection of different film-forming resins and the optimization of the ratio between thermochromic microcapsules and resins; during accelerated experiments such as temperature cycling and photoaging, regularly recording coating color change data to intuitively present the influence patterns of temperature ranges (-30°C to 60°C), different wavelengths (254 nm, 302 nm, 365 nm, 395 nm), and light sources (xenon lamps) on color-changing performance.     In response to the special detection requirements of thermochromic coatings, CHNSpec Spectrophotometer, with their precise chromaticity measurement capability, successfully captured the key characteristic of **blue-green phase coloration exhibited by a 70 μm coating due to optical interference effects, and clearly quantified the significant destructive effect of the 254 nm ultraviolet band on coating aging, providing reliable data support for subsequent anti-aging strategy formulation. Experimental data showed that formulations optimized based on the detection results of this instrument achieved more than 500 reversible color-change cycles, maintaining excellent stability in environments ranging from -20°C to 40°C.   Technological Breakthroughs Empower Practical Applications, Industry–Academia–Research Collaboration Shows Results   Relying on the precise detection data provided by CHNSpec Spectrophotometer, the research team ultimately identified waterborne polyurethane and polyvinyl alcohol as the **film-forming resin system, determined 70 μm as the **coating thickness, and innovatively proposed an anti-aging strategy of “constructing a UV absorber protective layer on the coating surface.” Compared with the traditional approach of adding absorbers directly into the system, this solution significantly improved anti-aging performance, providing important technical references for formulation optimization and weather resistance design of color-changing coatings.   This research achievement not only fills the gap in studies on the aging mechanisms of color-changing camouflage coatings, but also lays the foundation for the engineering application of dynamic camouflage technology in China. As a leading domestic provider of color detection solutions, CHNSpec, with its precision Spectrophotometer featuring stable performance and accurate measurement results, has been widely applied in high-end research fields such as military industry, coatings, and new materials, continuously providing reliable detection support for key technological innovations in China.   In the future, CHNSpec will continue to deepen its research and development in color detection technologies, launching more high-precision detection equipment suitable for special scenarios and extreme environments, promoting industry–academia–research collaborative innovation, and injecting greater precision-driven momentum into technological breakthroughs in national defense science and technology, new materials, and related fields.   (The full journal article can be accessed via https://www.cnki.net by searching the article title “Analysis of the Color-Changing Performance of Adaptive Thermochromic Coatings and Its Influencing Factors”.)

  Recently, the Zhejiang Provincial Department of Economy and Information Technology released the “2025 Proposed List of Key Enterprise Research Institutes in Zhejiang Province,” and CHNSpec has successfully been selected after multiple rounds of rigorous evaluation, earning provincial-level recognition for its strong R&D capabilities and technological innovation strength.   Since its establishment, CHNSpec has adhered to R&D innovation as its core strategy, continuously increasing scientific research investment, building a top-tier R&D team, tackling numerous key core technologies, forming achievements of independent intellectual property, and widely empowering the development of multiple sectors with its products and solutions. This selection will further accelerate the upgrading of the company’s R&D platform, boost the aggregation of innovation resources, and expand the space for technological innovation and achievement transformation.   In the future, CHNSpec will take this recognition as an opportunity to leverage the provincial innovation platform, deepen its focus on core technologies, strengthen industry–academia–research collaboration, accelerate achievement transformation, and play a leading and demonstrative role. The company will continue driving high-quality development and contribute to technological innovation and industrial upgrading in Zhejiang Province.  

  In the sun-protective textile industry, “urgent orders” and “rapid sampling” have long become the norm: before major e-commerce promotions, brands often need to produce and stock tens of thousands of sun-protective garments within a week. Yet, many manufacturers struggle due to low UPF testing efficiency—traditional testers take several minutes per result, while third-party labs require 3–5 days. The result? Either missed delivery deadlines or risky “untested production.”   The core of this dilemma lies in the lack of an analyzer capable of instant response. When urgent orders strike, testing speed directly dictates production rhythm: if testing is slow, fabric inspection delays halt production lines, and shipments get postponed—sometimes even leading to order cancellations. Conversely, skipping testing to save time may result in unqualified UPF performance, triggering costly rework. During rapid sampling, customers often require both “samples and test reports” at once, but third-party labs’ long turnaround times cause missed business opportunities.   To seize urgent orders and master rapid sampling, manufacturers need a UPF analyzer that can deliver results in seconds, operate independently, and meet international standards. The CHNSpec UPF-660 Series Textile Ultraviolet Protection Analyzer, with its “instant response” capability, becomes the ideal assistant for handling urgent demands—making urgent orders no longer urgent, and rapid sampling truly rapid.   I. Testing Pain Points Under Urgent Demands: Why Traditional Methods “Can’t Keep Up”   In urgent order and rapid sampling scenarios, traditional UPF testing methods face three major pain points that hinder response speed and turn “order opportunities” into “order losses”:   1. Low Testing Efficiency: “Minutes Per Test” Slows Production Rhythm   Traditional point-by-point UPF testers scan each wavelength sequentially, taking at least 3–5 minutes per sample. For batch testing, time multiplies exponentially.   2. External Dependency: “PC + Software” Setup Increases Complexity   Most conventional testers require external computers and proprietary software. During urgent testing, issues like PC lag, software incompatibility, or data transmission failure can halt the entire workflow.   3. Slow Standard Adjustment: “Manual Parameter Tuning” Fails Tight Deadlines   Urgent orders often come from international clients, each requiring different UPF standards (e.g., AATCC 183, EN 13758). Traditional devices demand manual parameter adjustments—time-consuming and error-prone—making it hard to keep pace with urgent demands.   When these pain points compound, companies are forced into reactive mode. The CHNSpec UPF-660 Series overcomes these limitations through three “instant response” capabilities, enabling manufacturers to handle urgent orders and rapid sampling with confidence.   II. CHNSpec UPF-660 Series: Three Instant-Response Capabilities for Urgent Efficiency   The CHNSpec UPF-660 Series enhances “efficiency, operation, and standardization” to deliver instant, seamless testing suited for urgent production and rapid prototyping scenarios:   1. 1-Second Full-Spectrum Scanning: Max Efficiency, Zero Delay   Equipped with 500 kHz high-speed spectral acquisition and nanosecond-level detector array synchronization, the UPF-660 completes 250–420 nm full-band data capture in just 0.1 milliseconds. The entire process—from “sample placement → data acquisition → UPF analysis”—takes only 1 second, dozens of times faster than conventional instruments.   Even under high-volume batch testing, the analyzer delivers results within seconds, ensuring testing never becomes a production bottleneck.   More importantly, its ultra-fast capture supports real-time averaging across thousands of readings within a second, maintaining a signal-to-noise ratio (SNR) above 1000:1. Even for fabrics with <0.05% transmittance, precision remains uncompromised. In urgent orders, efficiency and accuracy are equally critical, and CHNSpec UPF-660 achieves both.   2. Intelligent All-in-One Operation: Independent, No External Setup Required   The UPF-660 eliminates PC dependency with an integrated quad-core industrial processor and embedded OS, featuring a 7-inch IPS touchscreen. Operators simply tap “Start Test,” and the instrument automatically completes spectral acquisition, dark current correction, and UPF calculation—no external device needed.   During rapid sampling, designers can test newly created fabrics immediately in the lab—results appear in 1 second, without PC setup or data transfer delays. Real-time UPF and UVA transmittance values display instantly, and standardized PDF reports can be exported via USB—saving every second where it matters most.   3. Built-In Global Standards: One-Touch Switching, Zero Time Waste   For international orders, the UPF-660 includes major global standards: AATCC 183, AS/NZS 4399, EN 13758, GB/T 18830, and JIS L1925. Operators simply select the target standard, and the system automatically configures all wavelength and weighting parameters—no manual tuning needed.   Its modular software design ensures future-proof compatibility: when standards update, users can install firmware patches to stay compliant—eliminating “standard mismatch” worries, even for future urgent orders.   III. Beyond “Instant Response”: More Reliability for Urgent Needs   The CHNSpec UPF-660 Series not only delivers speed—it provides hidden guarantees that support continuous, high-stakes production under pressure:   1. High Dynamic Range: Accurate Testing for Extreme Fabrics, Avoiding Rework   Urgent production may involve mixed fabric batches with varying fiber densities or UV absorber ratios. The UPF-660’s research-grade photodetector array (dynamic range 50,000:1, UV quantum efficiency ≈ 90%) accurately measures UPF up to 2000, even for fabrics with transmittance <0.05%. Accurate readings prevent costly rework and protect delivery schedules.   2. Stable and Durable: 24/7 Operation Without “Breaking Down”   Designed for continuous industrial use, the UPF-660 features a reinforced aluminum chassis and military-grade optical components (light source and detector). With a mean time between failures (MTBF) exceeding 10,000 hours, it’s built for nonstop, multi-shift testing environments.   3. Compact and Portable: Test Anywhere, Anytime   At 325×332×290 mm and weighing only 9.25 kg, the device is easy to move between production floors, R&D labs, and sample rooms. Designers can test immediately after making samples, or production teams can deploy units across lines to boost throughput—all saving critical minutes during urgent projects.   In the Sun-Protective Textile Market, Speed Defines Competitiveness. When it comes to urgent orders and rapid sampling, speed determines market survival. While competitors struggle with slow, PC-dependent devices, companies using CHNSpec UPF-660 confidently deliver with 1-second testing, one-touch operation, and built-in standard adaptation.   The CHNSpec UPF-660 Series is not just a fast analyzer—it’s a strategic tool for manufacturing agility. It turns urgency into opportunity, ensuring every rapid order is delivered on time, with certified quality. With CHNSpec UPF-660, urgent orders are no longer urgent—and rapid sampling never delays success. Equip your team with true instant-response UPF testing, and let every urgent demand showcase your enterprise’s strength.

  In the field of sun-protective textile research and development, “repeated third-party testing” has long been the nightmare of researchers. To optimize a new sun-protective fabric formula, dozens of parameters must be adjusted—such as UV absorber concentration, fiber ratio, and coating process. After each adjustment, a sample must be produced and sent to an external lab for testing, taking 3–5 days before UPF data is returned. If results fail to meet standards, the cycle restarts: adjust parameters, make samples, resend for testing. As a result, optimizing a single formula can take several weeks, stretching the entire R&D cycle indefinitely.Even worse, third-party labs only provide the final UPF value—no real-time feedback on how formulation changes affect spectral details. Researchers are left “blindly guessing,” unable to efficiently locate optimization direction.   This dependence on external testing not only reduces efficiency but also risks losing market timing—when competitors have already launched next-generation high-protection fabrics, your product is still trapped in the “testing loop.” The root cause lies in the lack of an internal UPF testing system capable of “instant detection, precise analysis, and full control.” The CHNSpec UPF-660 Series Textile Ultraviolet Protection Analyzer was born to solve this R&D bottleneck. By bringing UPF testing capability into the lab, researchers no longer rely on external labs—reducing R&D cycles from weeks to hours and dramatically improving formulation development efficiency.   I. The “Triple Torment” of Third-Party Testing: Why New Formula Development Is Always “One Step Behind”   In sun-protective fabric R&D, relying on third-party testing causes three intolerable burdens that directly hinder progress:   1. High Time Cost: “Waiting for Reports” Drags Down the R&D Rhythm   Third-party labs usually take 3–5 working days to deliver UPF test reports, and during peak seasons, up to a week. Yet formula optimization demands repeated trial and error: parameter adjustment → testing → re-adjustment. For example, if a new fabric needs 10 parameter adjustments, waiting alone consumes 30 days (3×10), plus sample prep and shipping—extending the R&D cycle by 2–3 months.   2. Single-Dimensional Feedback: “Only Results, No Process” Blocks Optimization   Lab reports typically list only final UPF values and UVA/UVB transmittance, without detailed spectral data between 250–420 nm. But R&D teams need to know why transmittance peaks occur at certain wavelengths or how absorbers affect specific UV bands. Without full-spectrum curves, they can’t precisely pinpoint issues—relying instead on guesswork.   3. Stacking R&D Costs: “Repeated Shipping + Sample Production” Wastes Resources   Each testing round requires standard samples (often several backups), plus courier and testing fees—hundreds of RMB per test. For 10 iterations, costs reach thousands. Costlier still, premium UV absorbers and coating agents add to material waste. When time, cost, and direction all pile up, in-house testing becomes the only viable solution.   The CHNSpec UPF-660 Series, precisely tailored to R&D workflows, eliminates these pain points, making formulation development faster, more accurate, and more efficient.   II. CHNSpec UPF-660 Series: Three Core R&D Enablers That Halve Optimization Effort   The UPF-660 is not just a test device—it’s a data analysis platform built for sun-protective fabric innovation. With three core capabilities, it compresses R&D cycles from weeks to hours while improving accuracy:   1. 1-Second Instant Detection: Say Goodbye to “Waiting for Reports”   Equipped with 500 kHz high-speed spectral acquisition, a nanosecond-response detector array completes 250–420 nm full-band scanning in just 0.1 ms. From placing the sample to generating the UPF result and spectral curve, the whole process takes only one second. Researchers can instantly test in-house—no shipping delays—completing “adjust → test → re-adjust” loops all within the same day.   2. Full-Spectrum Detail Analysis: Beyond “Results,” Find the “Root Cause”   Covering 250–420 nm with < 2 nm optical resolution, the UPF-660 visualizes transmittance across every wavelength, producing complete spectral curve reports. R&D staff can pinpoint formulation flaws: if high transmittance appears in the 380–420 nm (UVA-I) band, long-wave UV absorbers need enhancement; if a UVB peak (280–315 nm) emerges, fiber density or coating thickness can be optimized.   3. Multi-Standard Real-Time Switching: Global Readiness in One Step   Different countries (China GB/T 18830, USA AATCC 183, EU EN 13758) define UPF calculations differently. Traditionally, multiple tests per region were required. Now, the UPF-660 integrates all major global standards—users simply tap to switch and instantly view UPF results under each standard, without repeated testing.   III. Beyond “Speed”: What Else Can CHNSpec UPF-660 Bring to R&D?   For R&D teams, the UPF-660 not only shortens development time but also delivers lasting value across data reliability, operational ease, and cost control:   1. Research-Grade Precision: Reliable Data, Fewer Wrong Turns   Inaccurate data leads to misdirected adjustments. The UPF-660’s high dynamic range photodetection system (50,000:1), advanced cooling (dark noise < 0.1 mV rms), and SNR > 1000:1 enable accurate measurement even for fabrics with < 0.05% transmittance (UPF up to 2000). Its precision matches third-party labs, ensuring R&D decisions rest on trustworthy data.   2. Intelligent All-in-One Operation: No Expertise Required   Built with a quad-core industrial processor and 7-inch IPS touchscreen, the UPF-660 operates independently—no external PC needed. After minimal training, researchers can run full tests with one tap. The instrument auto-handles spectral capture, dark-current correction, and computation, displaying results as both numerical values and curves—no manual data processing required.   3. Long-Term Cost Savings: One Investment, Ongoing Efficiency   While purchasing equipment requires initial investment, long-term savings are substantial. Once deployed, in-house tests are free—no per-test lab fees. With routine calibration, the device pays for itself within 2–3 years.   From “External Dependence” to “Internal Control”: A Revolution in R&D Efficiency In today’s competitive textile market, R&D speed defines market leadership. While competitors waste weeks waiting for lab reports, companies equipped with CHNSpec UPF-660 compress development cycles from weeks to hours—launching superior, market-ready fabrics faster.   The CHNSpec UPF-660 Series is more than a testing instrument—it’s an efficiency engine for sun-protective fabric innovation. It frees R&D from “waiting anxiety,” providing instant, accurate, and comprehensive feedback to break through formulation bottlenecks. No more endless shipments or wasted weeks—choose CHNSpec UPF-660 and unlock a new era of in-house, high-efficiency R&D, bringing better products to market faster.

  In the production and testing of sun-protective textiles, “unstable fabric UPF values” is a frequent headache for enterprises: the same swatch might test as UPF52 in the morning and drop to 45 in the afternoon; a batch passes in the workshop’s in-house test but fails at a third-party lab; even different parts of the same sun-protective garment may show significant UPF variation. This “up-and-down” test result not only makes it hard for companies to judge true product quality, but may also lead to falsely rejecting good products or accepting poor ones, triggering consumer complaints and regulatory risk.   Many enterprises blame unstable UPF on fabric quality, but ignore several “invisible killers” hidden in the testing process—factors seemingly unrelated to the fabric itself but directly interfering with measurement accuracy. To make UPF values “stable and controllable,” you must root out these killers and use specialized equipment to guard against them. The CHNSpec UPF-660 Series Textile Ultraviolet Protection Performance Analyzer, with deep adaptation to test environments and operational details, effectively counters these interference factors—providing enterprises with stable, reliable UPF data.   I. Expose the “Invisible Killers”: Four Major Factors Disturbing Your UPF Test Results   In real testing scenarios, the following four “invisible killers” are core reasons for unstable fabric UPF values. Many enterprises fall into the trap of repeated testing but confusing data because they overlook these details:   1. Ambient Light Interference: “Invisible UV Light” Steals Precision   UPF testing is fundamentally about measuring how much of specific-wavelength UV passes through fabric, then calculating protection efficiency. Should external ultraviolet sources (sunlight, UV components of fluorescent lighting) infiltrate the environment, these “stray lights” may pass through the fabric or be misinterpreted by the detector—leading to an apparent increase in transmittance, and thus a falsely lower UPF value.   2. Sample Condition Variability: Details You Overlook That Cause Data Fluctuations   The sample’s physical state (flatness, stretch, humidity) exerts far more influence on UPF value than many foresee:   · Insufficient flatness: If the fabric surface has wrinkles, UV will refract or reflect at folds, causing instability in detector readings; multiple tests at the same location may diverge. · Overstretch: Elastic sun-protective fabrics, if overstretched during testing, enlarge fiber gaps, raise UV transmittance, and reduce UPF values. · Humidity influence: Moisture absorption changes fiber structure; some UV absorbers may dissolve or degrade, reducing UV-blocking performance and lowering UPF.   3. Lack of Equipment Calibration: “Unmaintained Instrument” Becomes a Data Pollutant   Core components degrade over time: light source output weakens, detector sensitivity declines—these shifts cause systematic drift in test data. A weaker light source means less UV illuminates fabric; a less sensitive detector undercounts transmitted UV—both distort results.   4. Nonstandard Operation: “Human Error” Amplifies Data Differences   Even with stable equipment and controlled environment, poor procedural discipline can cause unstable UPF:   · Arbitrary sampling location: Different zones (edges, center, warp vs weft) inherently differ in density or coating thickness. Random sampling without averaging protocols leads to unrepresentative data. · Incorrect placement angle: Many instruments require exact sample alignment. Tilted or imperfect contact changes the UV path length and alters transmittance measurement. · Premature data capture: In manual devices, reading too early (before signal stabilizes) causes variation between repeated trials.   When multiple killers compound, test results “whipsaw.” The CHNSpec UPF-660 Series counters these in four dimensions—“light shielding, sample stabilization, calibration, and procedure standardization”—ensuring data clarity.   II. CHNSpec UPF-660 Series: Four Anti-Interference Designs That Make UPF Tests “As Stable as a Rock”   The CHNSpec UPF-660 is more than a measuring instrument—it’s engineered to actively resist interference, guaranteeing every test yields stable, accurate results. Its four core design features map directly to the invisible killers above:   1. Fully Enclosed Light Path: Isolate Ambient Light, No More “Stray Light” Interference   The UPF-660 uses a fully enclosed metal optical path, internally treated with matte black surfaces to absorb over 99% of stray light. Its test chamber features a light-sealing door, blocking external UV (sunlight, lighting) when closed, so the detector only reads UV from the instrument source.   Even in a brightly lit workshop, with the door closed, ambient interference is negligible. Tests show that under direct sunlight conditions, the UPF-660’s variation on the same fabric is ±1, far outperforming ±8 for traditional open systems. This “anti-interference” capability means you don’t need a dedicated darkroom—stable data comes in normal production spaces.   2. Standardized Sample Handling: Fix Sample State, Minimize “Detail Bias”   To mitigate sample variability:   · Custom sample fixture: Holds fabric flat and aligned, eliminating wrinkles or tilting. For elastic fabrics, tension can be adjusted per standard (e.g. no stretch, or 5% stretch). · Humidity alert: Built-in temperature/humidity sensors monitor chamber RH. If humidity exceeds a threshold (e.g. RH > 65%), the system warns “humidity too high, dry sample before testing,” preventing moisture skewing results. · Multi-point sampling: Software supports testing multiple zones (e.g. 5 points: center + four corners) and averages them, reducing random spatial variation.   With these measures, repeated tests on the same batch remain within ±2 UPF variation.   3. Intelligent Calibration System: Auto-Correct Drift, Keep Equipment “Always Precise”   Three built-in smart calibration mechanisms:   · Automatic dark current correction: On startup, the instrument measures background current with no light and subtracts it in subsequent tests, ensuring a true zero baseline. · Scheduled light source calibration reminders: The system monitors usage hours and prompts calibration when due. Enterprises can calibrate using standard reference samples in minutes without needing external technicians. · Temperature compensation: Key components include temperature sensors and compensation circuits. Between –10°C and 40°C, the system adjusts illumination and detector gain to counter ambient effect. In practice, across 10°C–35°C, UPF deviations remain ±1.5, significantly narrower than traditional ±8 swings.   This “auto calibration + temperature compensation” design keeps the instrument accurate over long-term use, avoiding drift from neglect.   4. Standardized Operation Workflow: SOP Enforcement Minimizes “Human Error”   To reduce procedural error:   · SOP-driven testing: Supports custom workflows (sampling locations, fixation mode, repeat counts, read timing). Operators follow on-screen steps—no need to memorize complex protocols. · Automated averaging & recordkeeping: The system can auto-run multiple successive measurements (e.g. 3), compute the average as the final result, and archive every raw reading, averaged value, and spectrum for traceability. · Sampling location guide: UI includes schematic showing the 5 standard points (center + four corners) on the panel, ensuring consistent sampling.   With these controls, even new operators generate consistent results following the same procedure.   III. Beyond “stability,” the UPF-660 delivers value in quality control, cost saving, and market trust:   For enterprises, the CHNSpec UPF-660 Series not only solves the pain point of “unstable UPF values,” but also creates long-term value   1. Enhance QC precision: avoid loss from misclassification   Stable data lets you reliably distinguish truly compliant from marginal fabrics, preventing both false rejection of good batches and acceptance of substandard ones.   2. Lower calibration & maintenance cost: reduce downtime   Traditional equipment requires frequent external calibrations—1–2 days and high fees. The UPF-660’s smart calibration lets you self-calibrate, preserving uptime and saving substantial yearly calibration costs.   3. Boost market credibility: use “stable data” to back product claims   When you can present consistent, traceable UPF reports, you defend against consumer doubts or regulatory checks with solid evidence.   In the sun-protective textile field, “stable UPF values” are more than a sign of product quality—they’re the foundation of brand trust and differentiation. If your enterprise still struggles with fluctuating data and neglects test-level interference, you risk lagging in quality control. The CHNSpec UPF-660 Series, via its four anti-interference pillars—fully sealed light path, standardized sample handling, smart calibration, and SOP-driven operation—pushes UPF data to be “rock-stable.”   Choosing the OPF-660 is not just acquiring a test instrument—it’s adopting a full stable, reliable QC system for sun-protective fabrics. With it, you no longer worry about fluctuating UPF numbers, freeing focus for R&D and market strategies. Start with CHNSpec UPF-660 to make “stable, controllable UPF” your standard.

  In the field of material optical performance testing, transmittance and haze are key indicators for evaluating the quality of transparent and translucent materials. CHNSpec (Zhejiang) Co., Ltd., with its profound technical expertise and continuous innovation, has launched the THC-07 Transmittance and Haze Meter and THC-08 Color Haze Meter, providing comprehensive and reliable testing solutions for the quality control and R&D of plastics, glass, films, liquids, and other materials.   I. Dual Instruments, Comprehensive Optical Parameter Coverage   The THC-07 Transmittance and Haze Meter focuses on the detection of fundamental optical properties of materials. It can accurately measure haze, transmittance, clarity, and other key parameters, and display transmittance spectral curves within the wavelength range of 400–700 nm. The instrument features a dual-aperture design (21 mm / 7 mm) and an open measurement area, supporting both horizontal and vertical measurement modes, making it suitable for quality evaluation of most transparent and translucent materials.   The THC-08 Color Haze Meter is a comprehensive upgrade based on the THC-07. In addition to haze and transmittance, it integrates multiple color parameters such as color difference, turbidity, platinum-cobalt color, yellowness, and whiteness. It supports various color spaces and color difference formulas, enabling measurement of multiple color parameters such as CIELab, LCh, Luv, and XYZ, meeting users’ dual testing needs for both color and optical performance of materials.   II. Core Advantages: Technological Leadership and Operational Ease     1. Dual-Standard Support, Broad Applicability   The THC series supports both ASTM and ISO international standards, allowing compliance with different regional and industrial testing requirements without replacing accessories or using compensation ports. The instruments come with multiple built-in light source modes and observer angles, ensuring international compatibility of testing results.   2. Full-Spectrum LED Light Source for Accurate Data   Equipped with a full-spectrum LED light source and high-precision spectral sensor, the THC series ensures highly accurate and reliable measurements. The haze repeatability is ≤0.03, transmittance repeatability ≤0.03, and color difference repeatability ≤0.03 — performance comparable to leading imported brands, providing reliable assurance for quality control.   3. 7-Inch Touch Screen for Smooth Interaction   Featuring a 7-inch IPS full-view touch screen, the interface is intuitive and user-friendly, making data clearly visible at a glance. The system is easy to operate without the need for complex training, significantly reducing personnel training costs.   4. Dual-Aperture Design for Enhanced Sample Adaptability   With 21 mm and 7 mm dual measurement apertures, users can flexibly select based on sample size. Even samples as small as 7 mm can be accurately measured, meeting diverse detection needs in research and production environments.   5. Open Measurement Area for Multiple Sample Types   The innovative open measurement area design allows the instrument to be used in both horizontal and vertical orientations. Combined with a dedicated positioning bracket, it easily accommodates sheets, films, liquids, and even large-sized materials.   6. Professional PC Software for Worry-Free Data Management   Equipped with powerful PC software, the THC series can be connected to a computer via USB for online measurement, data export, and report printing. It supports long-term data tracking and analysis, helping enterprises establish a complete quality management system.   III. Professional Assurance: Metrology Certification You Can Trust   The THC series strictly adheres to national metrology standards, ensuring that parameters such as haze, transmittance, and color difference can pass testing and verification by national metrology institutes, guaranteeing authority and credibility. The products comply with multiple national and industrial standards, including:   JJF1303-2011: Calibration Specification for Haze Meters GB/T 2410-2008: Determination of the Transmittance and Haze of Transparent Plastics GB/T 3978-2008: Standard Illuminants and Geometric Conditions GB/T 36142-2018: Methods for Measuring the Color and Color Difference of Architectural Glass (THC-08) JJG595-2002: Verification Regulation for Color Difference Meters (THC-08) GB/T 7921-2008: Uniform Color Space and Color Difference Formula (THC-08)   IV. Wide Application Fields: Empowering Industry Upgrades   With its exceptional performance and reliable precision, the CHNSpec THC Series Haze Meters have been widely adopted across multiple industries:   1. Plastics Industry   Used for testing the transmittance and haze of packaging films, automotive lamp covers, optical lenses, and other products to ensure that optical performance meets design specifications.   2. Glass Manufacturing Industry   Applied in the quality control of architectural glass, automotive glass, and appliance panels, supporting both color and haze testing requirements.   3. Film and Display Industry   Provides accurate optical parameter measurements for optical films, polarizers, and display modules, contributing to product performance improvement.   4. Liquid Testing Field   Used for evaluating the color and transparency of oils, pharmaceuticals, and beverages, ensuring product quality consistency.   5. Research Institutes and Universities   Provides reliable detection methods for optical property research, new product development, and teaching experiments, supporting technological innovation and talent cultivation.   CHNSpec (Zhejiang) Co., Ltd. is a leading enterprise in China’s color measurement industry, specializing in the R&D and manufacturing of optical inspection instruments such as colorimeters, spectrophotometers, haze meters, and gloss meters. The company brings together high-level R&D talent from Zhejiang University and the China Jiliang University, holds multiple domestic and international patents and technical achievements, and maintains close cooperation with several authoritative metrology institutions. CHNSpec is committed to providing customers with high-precision, high-performance testing instruments and comprehensive solutions.

  In the production chains of industries such as plastics, coatings, textiles, and printing, the consistency of color and gloss has always been the core challenge of quality control — traditional measurement requires two instruments and two separate operations, resulting in low efficiency; data deviation across multiple production lines makes global color consistency difficult to achieve; inaccurate measurement of special materials and high replacement costs due to short equipment lifespan add to the burden. All these pain points will be addressed by the DS-87CG Series 45/0 Spectrophotometer. As an innovative device that integrates “color + gloss” dual measurement, it provides enterprises with a full-link color management solution from the laboratory to the production line, and from domestic operations to global delivery, through six core advantages.   1. One Measurement Unlocks Dual Data of “Color + Gloss”   The visual perception of product texture has always been a synergy of color and gloss. In traditional solutions, inspectors need to use a colorimeter first, then switch to a gloss meter — time-consuming and prone to data mismatch caused by position deviation.   DS-87CG innovatively integrates high-precision color difference measurement with 60° gloss analysis into a single device. With just one click, its 3.5-inch full-color screen instantly displays color parameters such as Lab and LCh, along with GU gloss data. Whether testing the surface texture of plastic parts or the color saturation of printed materials, there is no need to switch devices — quality control efficiency is instantly doubled, providing a complete and intuitive presentation of both “color” and “gloss.”   2. Extreme Inter-Instrument Consistency Ensures Global Color Uniformity   For enterprises with multiple production lines or cross-regional supply chains, “same standard, different data” can be a fatal flaw — color differences between laboratory formulations and workshop production, inconsistent test results between headquarters and branches, or customer rejection due to equipment discrepancies.   DS-87CG, through advanced manufacturing processes and per-unit calibration, strictly controls inter-instrument color deviation within ΔEab ≤ 0.2 (superior to DS-86C/86CG’s ΔEab ≤ 0.25). From R&D formulation to mass production and global customer acceptance, color standards remain perfectly consistent. It completely eliminates “global supply chain color communication barriers,” ensuring product quality withstands scrutiny in every context.   3. Ten-Million-Measurement Lifespan — A Device That’s a Long-Term Investment   The core light source is the “heart” of a spectrophotometer; its lifespan directly determines operational cost and stability. Typical devices on the market have lifespans of only hundreds of thousands of measurements, leading to frequent replacements, rising costs, and potential data drift due to light source decay.   DS-87CG adopts a full-spectrum balanced LED light source, ensuring both stability and accuracy while achieving an unprecedented 10 million measurement lifespan (equivalent to 10 years of stable use). Assuming 100 daily measurements, one device can operate continuously for 27 years, drastically reducing replacement frequency and ownership cost. Choosing DS-87CG isn’t just buying an instrument — it’s a long-term investment in quality control excellence.   4. 360–740nm Full-Spectrum Analysis — No Color Detail Left Behind   Conventional spectrophotometers, limited by wavelength range, often struggle with materials containing fluorescent or whitening agents (such as textiles, skincare products, or fluorescent plastics), resulting in “metamerism” — colors that appear identical to the eye but differ in data.   DS-87CG covers the complete visible spectrum from 360–740 nm and includes independent UV light source control. It can accurately capture true color across both standard and special materials. For instance, when testing paper with optical brighteners, its UV light source restores true fluorescent color values, preventing misjudgments such as “visually qualified, data unqualified,” ensuring each measurement reflects true visual perception.   5. Superior Sample Adaptability — One Device for All Industries   Different industries feature vastly different sample forms: plastics (solid), coatings (liquid), food (powder), cosmetics (paste). Traditional instruments often require multiple attachments or even multiple devices to accommodate this variety. DS-87CG, with an optimized optical structure and extensive accessory support, easily handles all forms of samples — solids (plastic sheets, metal parts), liquids (coatings, inks), powders (flour, pigment powder), and pastes (creams, ointments).   From flour whiteness testing in the food industry to color control of ointments in pharmaceuticals and color fastness analysis in textiles, a single DS-87CG achieves true “one device, multi-application,” saving enterprises equipment and storage costs.   6. International-Level Precision — Import Quality at a Domestic Price   Enterprises have long faced a dilemma: domestic instruments are affordable but lack precision, while imported instruments are accurate but prohibitively expensive. DS-87CG breaks this trade-off. Through rigorous benchmark testing, it achieves industry-leading metrics: measurement repeatability of ΔE*ab ≤ 0.02, supports over ten color indices including CIE-Lab and CIE-Luv, complies with international standards such as CIE No.15 and ISO7724-1, and ensures first-class metrology certification.   Without paying an “import premium,” enterprises gain equivalent precision and stability. DS-87CG shatters the bias that “domestic = low precision,” enabling even small and medium-sized enterprises to upgrade quality control at optimal cost.

  In the production and quality-control links of many industries such as plastics, coatings, textiles, printing, food, and pharmaceuticals, precise control of color and gloss has always been the key for enterprises to guarantee product quality and maintain brand reputation. Traditional color measurement solutions often require two instruments to measure color and gloss separately, which is not only cumbersome and time-consuming to operate, but may also affect data accuracy due to measurement errors between the two measurements. The appearance of the DC-27CG series 45/0 spectrophotometer brings enterprises an efficient solution for integrated color and gloss measurement, redefining the color quality-control experience.   I. Facing industry pain points: four core problems of traditional color measurement   In daily quality control of industries such as plastics, textiles, printing, food, and pharmaceuticals, traditional measurement methods often have unavoidable problems that directly affect production efficiency and product quality:   1. Low efficiency, cumbersome operation: Traditional solutions require two instruments to measure color and gloss separately; two operations are not only time-consuming but may cause errors due to differences in measurement environment and position, causing delays in the quality-control process;   2. Inconsistent data, obstructed communication: In multi-production-line or cross-regional supply chains, measurement differences between different instruments are large, making it difficult to unify color standards from laboratory formulation to workshop production to customer acceptance, and easily causing quality disputes;   3. Special materials are hard to measure accurately: Materials containing fluorescent or whitening agents (such as textile fabrics, white plastics) have incomplete wavelength coverage by ordinary instruments, which easily leads to “metamerism” phenomena and cannot capture true colors;   4. High cost, poor adaptability: Core light sources have short lifetimes and need frequent part replacement, leading to high long-term ownership costs; at the same time, different-form samples such as solids, powders and liquids require multiple instruments for adaptation, increasing equipment investment and maintenance pressure.   II. Core advantages of DC-27CG series: solving pain points precisely, reshaping color measurement experience   The DC-27CG series centers on technological innovation; each advantage precisely corresponds to industry pain points, balancing efficiency, accuracy and economy:   1. Color + gloss integrated measurement, improving QC efficiency   Innovatively integrates high-precision color difference measurement with 60° gloss analysis function; with one click you can simultaneously obtain color parameters (Lab, LCh) and gloss (GU) data, no need for split operation, avoid multi-measurement errors, making quality-control processes more efficient and data more comprehensive.   2. Extreme inter-instrument consistency, ensuring global color uniformity   Through advanced production processes and per-unit calibration, instrument-to-instrument differences are strictly controlled within ΔE*ab ≤ 0.2. Whether in laboratory R&D, multi-workshop production, or delivery to global customers, color standards remain consistent, eliminating cross-link communication barriers.   3. Full-spectrum analysis, accurately capturing special colors   Covers the full visible band of 360–740 nm and is equipped with independent UV light source control. Even materials containing fluorescent or whitening agents can have their true colors accurately reproduced, effectively avoiding metamerism and not missing any color details.   4. Ten-million-measurement lifetime + strong adaptability, reducing total cost   The core light source uses full-spectrum balanced LED with a service life of 10 million measurements (about 10 years), reducing part replacement frequency and lowering long-term ownership costs; optimized optical structure + rich accessory support can easily adapt to solids (plastic parts, fabrics), powders (flour, dyes), liquids (coatings, beverages), pastes (sauces) and other sample forms, truly achieving “one instrument for multiple uses” and reducing extra equipment investment.   5. International-level accuracy, balancing quality and cost   Measurement repeatability reaches dE*ab ≤ 0.02, display precision 0.01, and through strict benchmark testing and first-class metrology qualification, indicators reach industry-leading levels. Enterprises do not need to bear the high costs of imported equipment to obtain the same level of measurement accuracy and stability.   6. Convenient functions included, adapting to diverse scenarios   Supports spectral reflectance, whiteness (ASTM E313 and other standards), yellowness (ASTM D1925 and other standards), color density (CMYK) and other measurement indicators, covering common industry evaluation needs; at the same time compatible with Android, iOS, Windows systems and WeChat mini programs, 3.5-inch full-color screen operation is clear, a single charge can continuously measure about 8,000 times, meeting high-frequency use scenarios in workshops and laboratories.   III. Wide application fields: meeting multi-industry color quality-control needs   With comprehensive performance advantages, the DC-27CG series can be a practical tool for color and gloss measurement across many industries. Specific application scenarios include:   1. Plastics industry: measure colors and gloss of plastic raw materials (powders) and finished parts (solids); full-spectrum analysis avoids interference from whitening agents, and inter-instrument consistency ensures unified standards across multi-batch production;   2. Coatings industry: test color difference and gloss of liquid coatings and dried coatings; integrated measurement improves workshop QC efficiency; ten-million-measurement light source life suits high-frequency sampling inspections; Textile industry: precise color measurement for fabrics containing fluorescent agents and dyes (liquid); UV light source control restores true fabric color and helps control textile appearance quality;   3. Printing industry: evaluate color density and color difference of printed matter; multiple light source conditions (such as D65 daylight, CWF cool white) simulate different usage scenarios to ensure color consistency of printed products in various environments;   4. Food industry: measure colors of flour (powder), sauces (paste), beverages (liquid) (e.g., use yellowness to judge flour freshness); sanitary-adapted accessories meet food-industry QC requirements;   5. Pharmaceutical industry: test packaging materials (plastic, paper) and drug powders, where high precision and first-class metrology certification meet the strict compliance standards of the pharmaceutical industry and ensure stable appearance of medicines.   Whether pursuing improved QC efficiency, ensuring color standard consistency, coping with diverse sample measurements, or balancing quality and cost, the DC-27CG series 45/0 spectrophotometer can provide enterprises with reliable color and gloss measurement solutions. For more product details, welcome to contact CHNSpec and start a new journey of efficient color quality control.

  In today’s competitive market, product development efficiency and quality directly determine a company’s survival and growth. However, many enterprises still rely heavily on external laboratories for UPF (Ultraviolet Protection Factor) testing — a dependency that has increasingly become a bottleneck limiting innovation and speed. Taking back control of product testing has become a strategic necessity. The CHNSpec UPF Analyzer provides strong technical support for this transformation, enabling enterprises to achieve truly independent, real-time, and secure UPF testing.   I. Dependence on External Labs: Four Core Pain Points in Enterprise UPF Testing   Relying on external laboratories may appear to save on equipment investment, but it hides multiple operational risks. These challenges manifest across time, communication, data security, and R&D flexibility—and together, they slow down business growth.   1. Excessive time cost — losing market opportunities.   Once samples are sent for external testing, enterprises must queue for lab availability, with turnaround times ranging from several days to months. In fast-moving markets, a competitive sun-protection product may miss its critical launch window due to testing delays—allowing competitors to seize the market.   2. High communication cost — rework risk from misalignment.   Frequent back-and-forth communication with labs over testing parameters, material characteristics, or data formats increases miscommunication risks. A single misunderstanding can invalidate results, requiring retesting and further delaying development.   3. Data security risks — exposure of trade secrets.   UPF testing data reflects the core of a company’s R&D—formulas, additives, and process parameters. Even with confidentiality agreements, transferring sensitive samples or reports to third parties introduces potential data leaks, threatening competitive security.   4. Limited R&D agility — slower iteration cycles.   When relying on external labs, enterprises cannot perform immediate testing during iterative design. Each modification requires new scheduling and delays, preventing rapid optimization based on real-time results—causing R&D to fall behind the market pace.   II. Gaining Testing Autonomy: The Key to Breaking Development Bottlenecks   Bringing UPF testing in-house allows enterprises to reclaim full control over development. With internal testing capabilities, companies gain clear advantages in efficiency, cost, accuracy, and data security.   1. Efficiency — accelerate development cycles.   Owning a dedicated UPF analyzer enables instant testing aligned with R&D progress. Real-time data supports rapid decision-making, reducing the testing bottleneck and speeding new products to market.   2. Cost — reduce long-term expenditures.   While initial equipment investment is required, the savings from eliminating repeated lab fees (hundreds to thousands per test) quickly offset costs. Additionally, avoiding rework from communication errors further lowers overall expenses.   3. R&D accuracy and flexibility — optimize performance faster.   In-house UPF data allows teams to identify issues immediately and refine formulations dynamically, resulting in more efficient innovation and higher-performing sun-protection fabrics.   4. Data security — safeguard proprietary technology.   By keeping all test data within the enterprise environment, risks of external exposure are eliminated. Sensitive parameters and formulations remain fully protected, ensuring long-term competitive security.   III. CHNSpec UPF Analyzer — The Core Equipment for Testing Autonomy   To eliminate reliance on external labs, enterprises need a high-performance, user-friendly, and stable UPF analyzer. As a pioneer in optical testing technology, CHNSpec developed its UPF Analyzer to meet this need, providing excellence in accuracy, usability, durability, and customization.   1.High Precision + Wide Range: Meeting Diverse R&D Needs   The CHNSpec UPF Analyzer uses a dual-beam optical system and imported high-precision detectors to measure UPF values and UVA/UVB transmittance of textiles. Its accuracy exceeds the GB/T18830-2009 industry standard, ensuring reliable data for both product development and quality verification.   It supports multiple material types, enabling comprehensive testing across fabric categories without needing external assistance.   2. Easy Operation + High Efficiency: Reducing Labor and Training Costs   Designed for enterprise teams without specialized technicians, the analyzer features a 7-inch touchscreen with intuitive icon-based UI. Operators can learn the workflow within 1–2 hours, with no need for professional lab personnel.   Testing is quick and automated: secure the sample, press start, and receive results in 30 seconds. Reports with key UPF and UVA/UVB data are automatically generated in PDF format—ready for R&D or QA documentation—greatly improving efficiency.   3. High Stability + Durability: Ensuring Long-Term Continuous Testing   Built for industrial environments, CHNSpec UPF Analyzer components are of military-grade quality, rigorously tested for temperature variation, vibration, and continuous operation.   The device maintains stability even under challenging workshop conditions and comes with a 1-year warranty and lifetime maintenance, ensuring reliability for continuous enterprise use.   4.Customization + Full-Service Support: Tailored to Enterprise R&D Needs   CHNSpec’s professional team provides customized configurations based on different enterprise testing workflows—whether for high-frequency production checks or advanced R&D validation.   Regular software updates ensure compliance with the latest testing standards and maintain long-term compatibility with regulatory frameworks—eliminating concerns over equipment obsolescence.   In today’s competitive sun-protection textile market, speed, quality, cost efficiency, and data security define corporate competitiveness. Moving away from external laboratory dependence and adopting in-house UPF testing marks a critical step toward these goals.   The CHNSpec UPF Analyzer empowers enterprises with precision performance, user-friendly operation, stable reliability, and tailored service—establishing a robust internal testing system. With CHNSpec, companies can reclaim control over their R&D, accelerate innovation, reduce costs, and deliver high-quality, compliant products—gaining a decisive edge in the global market.

  In the production and R&D of sun-protective products (textiles, outdoor gear, etc.), UPF (Ultraviolet Protection Factor) testing has long been seen as an “end-stage process.” Enterprises typically send finished products to external laboratories for “passive testing.” This model not only restricts product efficiency and quality but also reflects a passive mindset in quality management. When a UPF analyzer is introduced into the enterprise, it brings not only an optimized testing process but also a fundamental shift in management philosophy—from “after-the-fact correction” to “full-process control.” The CHNSpec UPF Analyzer is the key driver of this upgrade, transforming the idea of “proactive quality control” into an actionable management practice.   I. “Passive Testing”: The Hidden Management Dilemma Within the Detection Process   “Passive testing” may appear to be a cost-saving compromise, but in essence, it exposes deeper managerial weaknesses—a mindset built around “waiting” and “compromising” that erodes competitiveness.   (1)From a risk management perspective, passive testing traps enterprises in a whirlpool of “unknown risks.” External lab testing cycles last from several days to weeks, during which enterprises cannot predict whether products meet UPF standards. If results show noncompliance, entire batches may need to be scrapped or reworked, resulting in huge cost losses. Worse still, if undetected products enter the market, substandard UV protection may trigger consumer complaints, regulatory penalties, and brand damage. This “produce first, test later” model essentially outsources risk control, stripping the enterprise of early warning capabilities.   (2)At the decision-making level, passive testing leads to a “delay trap” in management decisions. During R&D, teams must adjust fabric formulations and process parameters based on UPF data, but external testing delays force them into “blind trial and error.” They must either pause progress to wait for results or proceed by guesswork, often steering projects off course. In production, when quick specification adjustments are needed to meet market demand, long testing cycles cause missed opportunities. This “waiting for data before deciding” state reveals a lack of precision in managing time costs.   (3)From a team collaboration perspective, passive testing fosters “responsibility dispersion.” Because external institutions handle testing, R&D, production, and QC teams tend to work in silos: R&D believes “our job ends once samples are sent,” production thinks “just follow the process,” and QC relies on “external data only.” Under such conditions, no one takes full responsibility for UPF performance. Team initiative and synergy decline, and quality control becomes a mere formality.   II. “Proactive Quality Control”: The Core Upgrade of Management Philosophy   When an enterprise introduces internal UPF testing and shifts from “passive testing” to “proactive quality control,” it achieves three philosophical leaps: from “problem response” to “problem prevention,” from “external dependence” to “internal control,” and from “divided responsibility” to “shared accountability.”   (1)First leap: Risk management becomes proactive.   Proactive quality control integrates UPF testing throughout the entire process: in early R&D, raw materials and fabrics are immediately tested to filter out substandard materials; during production, semi-finished products are randomly tested to detect process deviations; before shipment, final verification ensures batch compliance. This “end-to-end testing” approach eliminates risks at the source, shifting management from “remedying problems” to “preventing them.”   (2)Second leap: Decision-making becomes data-driven.   Internal testing gives enterprises access to real-time, accurate UPF data—transforming results from “delayed reports” into “dynamic decision inputs.” R&D can instantly adjust formulations, avoiding wasted experimentation; production can fine-tune parameters to stabilize output; management can analyze data trends to predict market shifts and design targeted strategies. This “data-driven management” frees decision-making from reliance on intuition and external reports, making it more scientific and efficient.   (3)Third leap: Team management becomes accountability-based.   Proactive quality control distributes responsibility across every stage: R&D owns “raw material data,” production owns “process data,” and QC owns “final data.” Each data link forms part of a “responsibility chain,” compelling team members to focus on quality. The analyzer’s simplicity enables front-line workers to participate directly in testing, fostering a “quality-for-all” culture. The team shifts from “passive execution” to “active ownership,” turning management from “supervision” into “empowerment.”   III. CHNSpec UPF Analyzer: The Core Tool for Implementing “Proactive Quality Control”   Upgrading from “passive” to “proactive” management philosophy requires reliable tools. The CHNSpec UPF Analyzer, with its technological advantages, meets the operational needs of proactive quality control, becoming the enterprise’s reliable management ally.   (1) “Fast” and “Accurate”: Supporting Early Risk Control and Data-Driven Decisions   The CHNSpec UPF Analyzer features a dual-beam optical system and high-precision detectors. Each test takes only 30 seconds, and its margin of error is far below the GB/T18830-2009 standard. “Fast” means enterprises can perform real-time testing at every critical stage of R&D and production, without waiting for lab scheduling, controlling risk at the source. “Accurate” ensures that every dataset is decision-worthy. For instance, R&D teams developing new sun-protective fabrics can instantly obtain UPF, UVA, and UVB transmittance readings, quickly determining formula feasibility and avoiding wasted effort caused by delayed data.   (2) “Simple” and “Stable”: Enabling Team-Wide Quality Control and Continuous Operation   The CHNSpec UPF Analyzer features a 7-inch touchscreen with icon-based UI that trained staff can operate easily. This simplicity breaks the barrier of “testing must be done by specialists,” allowing production-line workers to engage in in-process testing and enabling “company-wide quality control.” The analyzer’s core components are made of military-grade materials and have passed rigorous high/low temperature, continuous operation, and vibration tests, ensuring stability even in harsh workshop conditions.   (3) “Customization”: Adapting to Each Enterprise’s Management Model   Since every company has different R&D processes, production scales, and QC standards, CHNSpec offers customized solutions. For R&D-oriented enterprises, the analyzer’s data export can be integrated with management systems for traceability and analytics. For large-scale manufacturers, batch testing modules can be added to improve line efficiency. For startups, CHNSpec provides one-stop packages including “equipment + training + QC process design,” enabling fast implementation of proactive quality control systems. This adaptability makes the CHNSpec UPF Analyzer more than a testing device—it becomes a tailored management tool.   A UPF analyzer’s true value goes far beyond “testing.”When an enterprise chooses the CHNSpec UPF Analyzer, it abandons the complacency of “passive testing” and embraces the clarity and control of “proactive quality management.” This transformation reflects a deeper evolution in management philosophy: from external reliance to internal empowerment, from problem response to risk prevention, and from divided responsibility to unified collaboration.   In today’s fiercely competitive sun-protection market, “proactive quality control” is no longer a “bonus,” but a “necessity” for survival and growth. With its speed, precision, simplicity, stability, and customization capabilities, the CHNSpec UPF Analyzer empowers enterprises to integrate proactive quality management into every stage of R&D and production—achieving a leap from “product compliance” to “management excellence.”

  On October 31, 2025, the national standard GB/T 46442-2025 “Plastics—Determination of Color Difference of Recycled Plastics” was officially released under the jurisdiction of the National Technical Committee on Plastics of Standardization Administration of China (TC15) and the supervision of the China Petroleum and Chemical Industry Federation. The standard will come into effect on May 1, 2026. This newly issued standard fills the long-standing gap in the unified measurement of color difference in recycled plastics and provides key technical guidance for quality control across the industry. As one of the main drafting organizations, CHNSpec (Zhejiang) Co., Ltd. deeply participated throughout the entire standard formulation process, contributing its technological expertise to promote the standardization of color management within the recycled plastics sector.   Due to the diversity of raw material sources and variations in processing methods, color difference has long been a major challenge restricting the development of the recycled plastics industry—it not only affects product appearance consistency but also limits its application in high-end fields such as automotive, electronics, and packaging. Previously, the industry lacked a unified method for color difference measurement, resulting in low comparability of testing results among different enterprises and creating obstacles for industrial collaboration. The newly established GB/T 46442-2025 standard defines, for the first time, the technical specifications for measuring color differences in recycled plastics, covering testing principles, instrument requirements, operational procedures, and data processing methods, thereby providing companies with a practical, standardized testing solution.   As a leading enterprise in the field of color measurement in China, CHNSpec played a pivotal role in drafting the standard, backed by its deep experience in precision measurement technology development. Since its founding in 2013, the company has focused on innovation in color detection technologies, investing tens of millions of RMB in independent research and development, and has obtained multiple invention patents and software copyrights. Its products—such as precision colorimeters and spectrophotometers—are recognized for high accuracy and exceptional cost performance, consistently maintaining a leading market share. During the drafting process, CHNSpec incorporated its in-depth service experience within the plastics industry and integrated its self-developed high-precision spectral detection technologies (including optimized optical systems and intelligent data algorithms) into the standard, providing strong technical support for key sections such as instrument performance indicators and measurement accuracy requirements, ensuring the standard’s scientific integrity and practical applicability.   “The implementation of this standard will accelerate the transformation of the recycled plastics industry from extensive to refined management,” said a representative of CHNSpec. “Our existing testing equipment already complies with the new national standard and can help enterprises quickly achieve standardized detection, reduce color difference control costs, and improve product consistency—thereby promoting efficient recycling and utilization of plastic resources.” Looking forward, CHNSpec will continue to focus on the field of color measurement, empowering the standardization and technological advancement of more industries through continuous innovation. The company remains committed to supporting green manufacturing and contributing to the realization of China’s ‘Dual Carbon’ goals through technological excellence and data-driven precision.

As the sun-protection market continues to heat up, labels such as “UPF50+,” “SPF30,” and “PA+++” frequently appear on textiles such as sun-protective clothing, umbrellas, and outdoor tent fabrics. However, most textile professionals still remain at the surface-level understanding of these indices as “sun protection,” often confusing concepts and misusing labels, which not only affects product competitiveness but may also face compliance risks for failing to meet standards. For textile professionals, accurately distinguishing the core differences among the three sun-protection indices and mastering their testing logic is the foundation for effective R&D and quality control of sun-protective textiles. This article will comprehensively analyze the core definitions and applicable scenarios of UPF, SPF, and PA+++, and focus on UPF, the core index of the textile industry, to explain the importance of professional testing equipment for product quality—CHNSpec UPF Analyzer is the key enabler for textile enterprises to control sun-protection performance and seize market opportunities.   I. Core Analysis of Three Sun-Protection Indices: Definitions, Applications, and Standards   The essence of sun-protection indices is to measure the product’s ability to block ultraviolet rays. However, different indices target different UV types, applicable carriers, and measurement standards. Their differences must be clarified from the source.   (1) UPF: The “Exclusive Sun-Protection ID” for Textiles   UPF (Ultraviolet Protection Factor) is the sun-protection performance index specifically for textiles (such as sun-protective clothing, hats, masks, outdoor tent fabrics). It measures the fabric’s ability to block the full spectrum of UV radiation (UVA+UVB).   · Core function: Quantifies the textile’s filtering efficiency against UV rays. The higher the value, the stronger the protection. According to the Chinese national standard GB/T18830-2009 Textiles—Evaluation of Ultraviolet Protection, only when the textile’s UPF value is ≥40 and UVA transmittance ≤5% can it be labeled as “UV-protective textile” with the mark “UPF40+” or “UPF50+” (UPF values above 50 are counted as 50+).   · Testing logic: Requires professional equipment to simulate UV radiation in natural light and measure the intensity before and after passing through the textile in UVA (320–400nm) and UVB (280–320nm) ranges, calculating the UPF value and UVA transmittance. Both must meet standards to qualify.   · Key takeaway for textile professionals: UPF is the “hard index” for textile sun-protection products. Whether apparel or home textiles, if claiming “UV protection,” they must undergo UPF testing and meet standards—otherwise, it constitutes false advertising.   (2) SPF: The “Sun-Exposure Duration Ruler” for Cosmetics   SPF (Sun Protection Factor) applies only to sunscreens and related cosmetics. It measures protection against UVB (medium-wave UV, the main cause of sunburn and erythema). Its core function is to estimate the “safe exposure time” of skin in sunlight.   · Core function: Based on the time skin takes to redden without protection, multiplied by the SPF value, to calculate the theoretical safe time. For example, if unprotected skin reddens in 10 minutes, applying SPF30 sunscreen theoretically allows 10×30=300 minutes (actual time is shorter due to sweating, wiping, etc.).   · Testing logic: Through human skin tests or in vitro simulations, SPF is calculated by comparing UVB absorption before and after applying sunscreen. The higher the SPF, the stronger the UVB protection (common labels: SPF15, SPF30, SPF50+).   · Key takeaway for textile professionals: SPF has nothing to do with textiles. Labeling SPF on textile products like sun-protective clothing is a misuse, violates standards, and may incur regulatory penalties.   (3) PA+++: The “UVA Protection Grade” for Cosmetics   PA (Protection Grade of UVA) applies only to cosmetics. It complements SPF by specifically measuring UVA protection (long-wave UV that causes skin aging, darkening, wrinkles).   · Core function: Levels are indicated by the number of “+” signs. The more “+,” the stronger the UVA protection. Main levels are: PA+ (≥60%), PA++ (≥70%), PA+++ (≥80%), PA++++ (≥90%).   · Testing logic: Measures UVA transmittance or absorption by the product, classifying protection accordingly. PA grades are marked together with SPF on cosmetic packaging (e.g., “SPF30+PA+++”).   · Key takeaway for textile professionals: PA grades apply only to cosmetics. For textiles, UVA protection is already covered under the UPF index (“UVA transmittance ≤5%”), so marking PA is unnecessary and may confuse consumers.   II. Textile Enterprises’ UPF Testing Pain Points: Why Professional Equipment is Irreplaceable   For textile enterprises, accurate UPF testing is core to R&D, quality control, and compliance. But reliance on external laboratories often causes three major pain points limiting development:   (1) Long Testing Cycles, Slowing R&D and Market Launch   External lab testing requires scheduling, typically taking 3–7 days, and up to 2 weeks in peak seasons. Sun-protective textiles are highly seasonal (e.g., pre-summer launches). Frequent adjustments to formulations and processes in R&D become delayed when dependent on external labs, causing missed market windows.   (2) Insufficient Data Precision, Creating “Blind Spots” in QC   Different labs may use varied equipment and standards, leading to inconsistent results for the same batch. Moreover, external labs usually test only finished products, leaving raw materials and semi-finished goods unchecked, meaning quality control is reactive rather than proactive.   (3) High Long-Term Costs, Weakening Competitiveness   Each external UPF test costs hundreds of yuan. If a company develops 10 sun-protection products annually, with 5–10 tests each, yearly costs reach tens of thousands. Long-term dependence inflates overall costs, reducing competitiveness.   III. CHNSpec UPF Analyzer: The Core Tool for “Independent QC and Accurate Sun Protection”   The CHNSpec UPF Analyzer addresses these pain points with precision, efficiency, convenience, and stability, enabling enterprises to shift from “external dependence” to “internal control.”   (1) Dual Standard in One, Accuracy Meets National Standards   Strictly following GB/T18830-2009, it uses a dual-beam optical system and imported detectors to simultaneously measure UPF and UVA transmittance. Its error margin is far below industry standards, ensuring accuracy. Whether verifying formulas in R&D or monitoring product consistency in production, it provides authoritative “dual compliance” data.   (2) High Efficiency and Convenience, Meeting Full-Process Testing Needs   User-friendly 7-inch touchscreen with icon-based UI, operable by trained staff. Each test takes only 30 seconds, automatically generating reports with UPF and UVA transmittance, exportable as PDF. Enterprises can integrate testing throughout workflows—raw material screening, semi-finished checks, final product QC—without waiting for labs, shortening R&D cycles and speeding time-to-market.   (3) Stability and Durability, Reducing Long-Term Testing Costs   Built with military-grade components, tested under extreme temperature, vibration, and continuous operation. It withstands workshop environments (temperature, dust), ensuring long-term stability. One-time investment enables unlimited testing, reducing costs and enhancing competitiveness.   (4) Custom Adaptation, Meeting Personalized Scenarios   CHNSpec provides tailored solutions: automatic feeding modules for mass production, optimized data interfaces for R&D enterprises, and turnkey packages (equipment + training + QC consulting) for startups.   For textile professionals, distinguishing UPF, SPF, and PA+++ is the “basic skill” to avoid compliance risks and accurately position products. Mastering professional UPF testing is the key to shifting from “passive compliance” to “active leadership.”   In today’s market, where consumers demand rigorous sun protection, a textile product labeled “UPF50+” without precise testing will ultimately lose trust.   The CHNSpec UPF Analyzer is more than a testing device—it is the trusted assistant for textile enterprises in controlling sun-protection quality and meeting standards. It transforms UPF testing from “external dependence” to “internal mastery,” enabling accurate optimization in R&D, strict QC in production, and compliant competition in the market—ultimately delivering “true sun protection and true compliance” products that earn consumer trust and industry competitiveness.