Breaking through the pain points of the textile industry, Haopujia has cracked the problem of evaluating color changes in washing liquids

Hao Pujia has successfully solved the difficult problem of quantifying the color change of washing liquor in color fastness testing in the textile industry by constructing a full-process precision detection system, providing a standardized and high-precision solution for the industry.

Limitations of traditional detection methods

The textile industry has long relied on the GB/T 3921-2008 standard to evaluate color fastness by visually comparing the staining of the adjacent fabric after washing. However, the color change of the washing liquid itself has been overlooked. The traditional "visual method" has the following problems:

High subjectivity: The detection results rely on human judgment and are easily influenced by the physiological state, experience, and environmental factors (such as test tube size, grading distance, and visual differences) of the testing personnel. The maximum deviation can reach Level 1.

Unquantifiable: Only a rough grade range can be provided, with no precise quantification of color differences.

Low efficiency: Long detection time in large batches, making it difficult to meet modern production demands.

Haopujia's solution

Haopujia has established a comprehensive detection system covering the entire process from sample processing to data analysis, enabling objective and quantitative evaluation of the color changes in the washing solution

Sample processing: Refer to the GB/T 3921-2008 standard for washing textiles. The washing solution is pretreated by filtering through a qualitative medium-speed filter paper.

Transmission mode detection: Under the D65 standard light source and a 10° observation angle, test the transmittance of the lotion within the visible light range of 380~780nm.

Data quantification: By accurately capturing spectral data and combining with the CIE1964-XYZ chromaticity system, the tristimulus values of the lotion are calculated and converted into key parameters such as L, a, b* in the CIELAB uniform color space, achieving quantitative color characterization.

By precisely quantifying the color changes of the washing solution, we can assist enterprises in optimizing their dyeing processes, thereby reducing returns and rework caused by substandard color fastness, and ultimately lowering production costs.

Inject new momentum into the high-quality development of the textile industry, and promote the industry's upgrade towards intelligence and precision.