The effect of color fastness on the quality of webbing


Color fastness is the most important goal of the quality of the webbing, and the primary focus is the color fastness resistance to conflict, perspiration, washing, light, and washing.

All kinds of delicate webbing that are usually seen go through multiple elastic belt processes during the production process. During this process, due to errors caused by various reasons such as raw materials, production processes, and operations, the webbing is usually in different batches. Even the same batch of fabrics will be different in color. The size of the cloth color difference, if the color light source is different, the color environment, the color time are different, and the evaluation of the color difference is also different. Therefore, in order to accurately evaluate the difference between colors and ensure the consistency of the color matching results, when visually identifying colors, the light source specified by the customer must be selected in the standard color matching light box to prevent visual effects caused by irregular light sources or different light sources. difference.

Color fastness is the most important goal of the quality of the webbing, and the primary focus is the color fastness resistance to conflict, perspiration, washing, light, and washing. The items to be checked are mainly determined according to the use of the product, and customized according to the needs. The problem of discolored webbing produced by the webbing factory can be big or small. If the webbing used for clothing accessories is discolored during washing, it will contaminate the whole clothes or the clothes that are washed at the same time. Discolored webbing can give a serious sense of disgust.

The so-called color fastness refers to the degree of color fastness of dyed textiles under physical and chemical action, that is, the fastness of the color of dyed textiles to external influences is called dye fastness. According to the color change of the sample after the experiment, the identification grade of the staining degree of the white cloth indicates the quality of the color fastness.

Among the various items of color fastness, the most commonly used color fastness at present are color fastness to conflict, color fastness to perspiration, color fastness to washing, color fastness to light, color fastness to water immersion, color fastness to washing Items such as color fastness to weather, color fastness, etc. In actual life, the items to be checked are mainly determined based on the ultimate use of the product. Among them, the resistance to perspiration, dry rubbing, and color fastness to water immersion are the items required by the basic safety technical specifications of textiles, and all dyed textiles should be checked. In addition, the color fastness to saliva should also be checked for textile products for infants and young children.

The identification of color fastness usually adopts the visual identification method, that is, the gray sample card is used as the standard sample. Under certain lighting and environmental conditions, the gray card and the sample are compared with human eyes to determine the original discoloration of the sample and the level of white cloth staining. number. The gray card (discoloration and staining, respectively) has five fastness grades, namely 5, 4, 3, 2, and 1. Grade 5 is the best, and grade 1 is the worst. In every two grades, half a grade is added, that is, 4 5, 3 4, 2 3, 1 2, so our daily gray card is 5 grades and 9 grades, and the color fastness appraisal result is one of 9 grades. If a certain color fastness of the webbing product does not reach the level of the standard rules, then the webbing product is unqualified.

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