The function of thickening agent is that the fabric is greatly stretched during the processing, and the thickness of the fabric will become thinner after finishing. The thickening agent has thickening and softening effects on pure cotton and blended fabrics, so that the finished fabric keeps its original thick feeling and obtains a soft style at the same time.

 Depending on the method, blackening agents are usually divided into two categories: post-use deepening dyeing and coloring agents. The increased depth of the former principle actually modifies the fiber surface in order to change or improve it

Good fiber surface properties, increase fiber affinity for coatings, dyes, coloring materials are better absorbed and attached; In addition, the dyeing properties can be improved by changing the solubility of dyes in the solution, or slight changes in the structure of dyes and other methods.

The focus of this test is increasingly to use dark stains. The principle is to increase the depth by changing the optical characteristics of the fiber surface, so as to obtain an obvious dark effect. This deepening agent does not

The finished products dyed with dark dye products that meet the requirements or have a large dyeing depth have good practical value. Test. For increasing the effect of reagents on cotton fabric and the depth of reactive dyes, the change from previous color depth, the depth of increased agent relationship and the amount of increased deep effect, and the deep treatment with increased color fastness, etc.