How to control and avoid the color difference problem of flame retardant cloth

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Flame retardant fabric international standard city textile

The comparison of fabric colors is also very important, especially the inspection of fabrics based on the correct fabric color samples and quality samples approved by the customer. How to reduce the color difference of flame retardant cloth? Our city’s textiles use standard light sources and color-matching light boxes. Why do flame retardant cloths have color differences? The production of flame-retardant fabrics requires multiple processes. During this process, there are slight differences in raw materials, production processes, operating methods, etc. When comparing colors, the light sources irradiating are different, the color comparison environment is different, and the color comparison time is different. , and ultimately the colors of flame retardant fabrics are also different. The standard light source color matching light box has a relatively standard unified light source. When evaluating color with the naked eye, the light source specified by the customer must be selected for color matching in the standard light source color matching light box. This can more accurately evaluate color differences and ensure consistent color matching results. sex.
Commonly used standard light sources are:
D65 – international standard artificial daylight (average north window light), most customers use it
TL84 – three primary color fluorescent lamps, Europe , Japanese store light source, European and Japanese customers usually use it
CWF – cool white light, American store or office light source, American customers often use this light source
UV – ultraviolet light, used to detect fabrics Brightener or fluorescent dye
A——Sunset light source, which is a reference light source
In the proofing requirements provided by customers of flame-retardant fabrics, there are generally clear requirements for light sources, such as natural light and fluorescent lamps. Light, D65 light (artificial daylight), TL84 light (white light in European department stores), CWF light (white light in American department stores), UV light, etc. Standard light boxes, especially light tubes, must be products that comply with international standards, and the correct light tubes must be used to eliminate non-standard light boxes and color differences caused by non-standard light sources of light tubes and improper use of light boxes.
Some customers require the use of two different light sources for color matching, or even require that the two light sources be turned on at the same time and use a mixed light source for color matching. When this happens, there will usually be an obvious problem of light jumping. Under different light sources, different colors of light are produced, even beyond recognition.
Then the production company needs a stable and accurate colorimeter. The color matching method uses the tristimulus value data measured under the same conditions. According to the color difference or metachromic index requirements, the appropriate formula is selected after calculation, and proofing is carried out according to the requirements. After obtaining the small sample, compare it with the standard sample to calculate the color difference. If the color difference is unqualified, use the formula correction procedure to further correct the unqualified sample until the customer’s requirements are met before mass production to avoid the occurrence of color difference. .
：Textile

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