Defects definitionGenerally refers to a kind of dyeing defects produced during the drying and storage of textiles after printing and dyeing.Compared with the normal dyed blank, the wind mark will show white or dark gray strips in the latitude direction of the entire door width. This defect cannot be Read More
The main reason: the alkaline spot is not clean or uniform after pre-treatment (such as bleaching, light treatment). "The pre-treatment process must be strengthened to remove alkali. CauseEnsure the quality of semi-products before dyeingUse soft water to prepare dye solution and dyePrevent the semi- Read More
Dye migration is a process in which the leveling agent re-disperses the high dye concentration part of the dyed fabric into the dye bath, and then dyes the low dye concentration part. Dye migration is an important performance of the disperse dye repair agent. .Regarding migration, the following meth Read More
According to the principle of the scouring agent, as a high-efficiency scouring agent, it must have the conditions of rapid penetration, strong emulsification and dispersion, high cleaning power, low foaming, high temperature resistance, strong alkali, hard water, easy biodegradation, safety and non Read More
The washing fastness of the fabric includes two aspects of fading fastness and stain fastness. Generally, the worse the color fastness of textiles, the worse the color fastness.When testing the stain fastness of a certain textile, the staining of the fiber can be determined by testing the staining o Read More
The basic principles of photochemistry of dye fadingDuring the sun exposure, the effect of light on dyes can be explained in two ways.First of all, as far as the structure of the dye is concerned, under the action of ultraviolet light, the chemical bond in the dye changes or even breaks, causing the Read More
Raw material: silk + cotton Velvet, which originated in Zhangzhou, Fujian Province in China named. It was one of the traditional Chinese fabrics produced in the Ming Dynasty. Velvet raw material used for 22 ~ 30 cocoon first class raw silk, also used silk for the warp, cotton yarn for weft interwove Read More
Scouring is a very important process in the pre-treatment process of printing and dyeing of cotton-based cellulose fibers and their blended fabrics. The purpose is to remove natural impurities contained in the fibers. For example, natural cotton fiber contains about 10% of natural impurities, includ Read More
Analysis of the causes:Pre-treatment oil spots are mainly expressed as oily, nearly transparent dot-like spots produced during the pre-treatment process.The general cause is the large amount of chemical fiber oil on the fabric, and the spandex oil containing dimethyl silicone oil on the spandex fabr Read More
