Neutral leveling agent for acid dyes

Abstract

The invention belongs to the technical field of textile auxiliaries, in particular to a neutral leveling agent for acid dyes. The neutral leveling agent for acid dyes described in the present invention has good dyeing effect of fiber fabrics, uniform dyeing, good slow dyeing performance, high color fastness, and no color stripes, color spots and other defects in the dyed fiber fabrics. Phenomenon: The components are simple, reasonable and scientific, the cost of raw materials is low, friendly to the environment, natural and environmentally friendly, non-polluting, and non-toxic to the human body. The application of chitin and acid dyes in the dyeing process of wool has excellent leveling effect, and at the same time endows The fabric has good antibacterial performance. The tea extract and wormwood extract are added to the components, which further improves the antibacterial and insect-proof performance of the dyed fabric; the neutral leveling agent can effectively reduce the damage to wool fibrin and improve the wool fabric. quality.

Description

technical field [0001] The invention belongs to the technical field of textile auxiliaries, in particular to a neutral leveling agent for acid dyes. Background technique [0002] During the dyeing process of fabrics, uneven dyeing is very easy to occur, and defects such as color stripes and spots will occur, which greatly affects the quality of fabrics. In order to promote uniform dyeing, avoid defects such as color stripes and spots, effectively improve dyeing uniformity and ensure dyeing efficiency, leveling agents are usually used in the textile industry. [0003] Leveling agents generally need to be able to control the speed at which dyes are absorbed by fabrics, which can promote the uniform distribution of dyes on fabrics and do not affect color fastness. [0004] Acid dyes refer to a class of dyes that are dyed in acidic media. Acid dyes are divided into strong acid, weak acid, acid medium, acid complex dye, etc. according to their chemical structure and dyeing cond...

AI Technical Summary

Problems solved by technology

The hydrophobic surface layer of the fiber and its own differences lead to differences in the affinity of the fiber to the dye, which can easily cause uneven dyeing and color difference. The acid dye has a simple structure and contains acid groups such as sulfonic acid groups and carboxyl groups. The affinity of fiber makes it difficult for acid dyes to dye evenly. Acid dyes lack directness to cellulose fibers and cannot be used for dyeing cellulose fibers. Therefore, leveling agents are required.

[0005] The existing leveling agents for acid dyes usually add urea or other alkaline substances to adjust the pH value, but the wool protein is not resistant to alkali, the added urea does not play a good inhibitory effect but damages the wool quality. At the same time, the existing acid dye leveling agents also have problems such as high formula cost, complicated process, and poor leveling effect.