Woven fabrics, knitted fabrics, and other types of fabrics undergo certain deformations in their original width, length, and other aspects due to the effects of moisture, heat, tension, and other processes such as pre-treatment, dyeing, or printing.

In production, it is common to encounter situations where polyester or polyester containing fabrics are dyed out of the vat, and the fabric surface and color light are normal, but after being processed in the next process, there are color changes or local spots and stripes, as well as a decrease in color fastness. This type of problem can be easily repaired after re repair

The solubility stability of reactive turquoise blue and reactive light yellow in salt and alkali solutions is poor. Once too much or too early salt and soda ash are added, it is easy to produce condensation, which seriously affects the uniform adsorption and diffusion of dyes, resulting in excessive floating color and a decrease in dyeing fastness.

Clothing dyeing not only aims to achieve the desired color and good dyeing fastness for customers, but also requires a good leveling effect. The so-called level dyeing refers to the uniform distribution of dyes in all parts of clothing. This uniform distribution includes the surface of the dye and the uniform distribution of various parts within the fiber.

Due to the irreversible adsorption of cellulase on specific fabrics, it accelerates the re deposition of bright blue dyes onto cellulose fibers. Therefore, the presence of cellulase is the main reason for denim washing and dyeing. This research conclusion mainly considers the interaction between specific fibers and cellulase proteins: if there are many proteins bound by fibers, the degree of retrogradation is deep;

1、 Why is it required to use a small amount of cold water to mix the slurry first when using chemicals, and the temperature of the chemicals should not be too high?