The color fastness of the ribbon is an important evaluation index of printing and dyeing textiles, and the evaluation index of the color fastness of the textile using different kinds of dyes is not the same, because of the different types of dyes used, the difference in the color fastness evaluation index can be up to one and a half. The fastness to washing of woven cotton cloth (white cloth stained) is 4-5 grade for VAT dyes, and 3 grade for vulcanized, naftol and reactive dyes. This is because of the different molecular structure and chemical properties of various ribbon dyes, the combination of different textiles, the binding force is not the same, some ribbon dyes are chemically reactive with textile fiber molecules and chemically bonded to the textile, and some dyes are fixed on the textile in a physical reaction.

Ribbon according to the process classification, mainly woven ribbon and knitted ribbon two categories. Webbing, especially jacquard webbing, is somewhat similar to the label process, but the warp of the label is fixed and the pattern is expressed by the weft; The basic weft of the ribbon is fixed, the pattern is expressed by the warp, and the small machine is used, which may take a long time to print, produce yarn and adjust the machine, and the efficiency is relatively low. But you can make a wide variety of dazzling products, not like the cloth label is always those few faces.

The main function of the ribbon is decorative, but also functional. Such as the popular mobile phone sling. After the ribbon is woven out, it can also screen print a variety of words/patterns, which is generally cheaper than directly weaving the text pattern. The ribbon is made of polyester high strength material, with high strength, high temperature resistance, high strength, flame retardant and so on. It can also glue a layer of pvc on the surface of the webbing according to the requirements of anti-sweat, and make pvc and webbing fully bonded together through a unique process, playing a wear-resistant, corrosion-resistant, sweatproof, beautiful and other effects.
Therefore, the evaluation index of its color fastness is not the same. Therefore, it is very important to determine the kinds of dyes on printing and dyeing fabrics to evaluate their color fastness. According to the dyeing and finishing principle, for different textile raw materials, the types of dyes used are also different, and the types of dyes used can be preliminarily inferred according to the composition of textiles, and then targeted tests are carried out to verify.