What should I do if flame-retardant fabrics and flame-retardant clothing fade easily?
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Flame retardant fabric flame retardant clothing
The phenomenon of flame-retardant fabrics and flame-retardant clothing fading easily occurs gradually, and the process is relatively complicated. Flame-retardant fabrics and flame-retardant clothing have been washed many times and exposed to the sun for a long time, causing the dyes on the clothing to photolyze and age, causing the clothing to fade. Some suggestions for improving the fading of flame-retardant clothing: When sunlight shines on dyed clothing, light energy stimulates the activity of dye molecules. The moving dye molecules can react with chemically active substances. They must first react with oxygen in the air. The presence of moisture will promote the intensity of the chemical reaction. Due to the oxidation or reduction reaction of dye molecules, dyed clothing will fade. For example, cotton fiber fabrics dyed with azo dyes fade in the sun, which is the result of oxidation, while protein fiber fabrics dyed with the same dyes fade in the sun, which is the result of reduction. If the structure of the dye molecule contains many color-helping groups such as amino groups (-NH2) or hydroxyl groups (-OH), oxidation will easily occur and the light fastness will be reduced. When the dye molecules contain groups that can form hydrogen bonds, or groups such as hydroxyl (-COOH), sulfo (-SO3H), nitro (-NO2), etc., the light fastness of the dye will be improved. In addition, the fading of dyed clothing is also related to the structure of the dye molecules. Among dye molecules, the stability is poor, and the fading of dyed clothes is also related to the structure of the dye molecules. In dye molecules, hydrogen atoms with poor stability and strong reactivity can promote the oxidation process. How to improve and optimize the performance of dyes is an important means to overcome fading of dyed clothes. In short, the reason why dyed clothes fade depends on the affinity of the dye to the fabric fibers, as well as the spectral characteristics of the dye, the concentration of the dye, the dry humidity of the dye, the chemical structure of the dye, and other factors. It is not difficult to see that the main reason why dyed clothes fade is determined by the characteristics of the dye.
：Textile
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