Textile color fastness refers to the dyed or printed fabric or during processing, the degree of fading under the action of external factors (extrusion, friction, washing, rain, exposure, light, seawater immersion, saliva immersion, water stains, sweat stains, etc.) is an important factor in evaluating fabric quality. If the color fastness of the fabric is good, the textile will not easily fade during post-processing or use, and the color will be as bright as new after long-term use; if the color fastness of the fabric is poor, it will be B. Color fading, easy staining or staining, etc., causing many problems.
Textile color fastness tests generally include the following aspects:
1、Nairi color fastness test
When the outerwear is worn, the dye is exposed to sunlight, the end result is that the color of the pieces that are exposed to more sunlight becomes lighter or discolored (usually the back and shoulders), while the color of those parts that are not or less exposed to sunlight remains the same or changes slightly, resulting in the color of the Whole clothing varies, and the style and color are ugly.If the clothing color fastness to light is good, the above problems will not occur, or the effect is svery low and can be ignored. Evaluation of fabric color fastness to sunlight is a very important point in evaluating fabric color fastness.
Associated Test Instruments: Sunlight Color Fastness Tester
2, wash fastness test
The color fastness to laundering test is intended to assess the degree of fading of outerwear after soaping and laundering and is also an important item in evaluating the performance of fabric color fastness. Garments with good color fastness to washing, after repeated soaping and washing with waterr the color is stable and does not fade, or the effect is negligible; but some garments have poor color fastness to washing, and fading is obvious after washing and soaping. Especially advanced silk, wool and pure cotton garments are most prone to fading problems.
Relevant Verifier: Wash Color Fastness Tester
3, rubbing color fastness test
Color fastness to rubbingThe test is used to evaluate the degree of fading of textiles after they have been subjected to external rubbing during use ahave been exposed to and it is also an important point in evaluating the color fastness performance of textiles. Different parts of clothing are subject to different amounts of friction, so the degree of color fading is also slightly different, for example, the cuffs, elbows, collar and armpits of the jacket and the hips and knees of the pants are most likely to fade due to friction.
Relevant Tester: Multifunctional Colorfastness Friction Instrument
4, perspiration fastness test
The color fastness test to perspirationis an important part of evaluating the degree of fading of fabrics after soaking in sweat and evaluating the performance of fabric color fastness. Although the clothing is impregnated with perspiration, whether the dye is solid or not depends on the customer's experience, so special testing is required.
Relevant tester: Sweat fastness testerSweat fastness
5, Iron-On Dyefastness TestThe Iron-On Sublimation Colorfastness Test is designed to measure the degree of fading of outerwear under high temperature conditionsns to evaluate, and it is also the color fastness of textiles An important point in performance evaluation Clothes with good color fastness to ironing and sublimation, after ironing with electric iron and processing with hot roller, the color is stable and does not fade, or the effect is negligible. Some garments are obviously fading, so this article is also part of the color fastness test.
Relevant tester: Iron-On Sublimation Colorfastness Tester
These five tests are the main tests used to evaluate the color fastness of textiles and play a role in monitoring qualityof textiles. Textile companies must perform the above tests to ensure product quality.