Nylon/cotton mixture fabric dyeing method capable of preventing nylon color staining

Abstract

The invention provides a nylon / cotton mixture fabric dyeing method capable of preventing nylon color staining. The dyeing method at least comprises the following steps of 1, dyeing treatment and 2, soaping, wherein a dye working solution obtained in the first step is prepared from a dye retarding agent, a reactive dye, anhydrous sodium sulphate and sodium carbonate; a soaping agent for staining resistance is adopted in the second step for soaping treatment, wherein the dye retarding agent DM-2922 is selected and is a surface active agent compound, and a polymer DM-1522 of the special structure is selected as the soaping agent for staining resistance. According to the method, a nylon dye retarding agent DM-2922 and reactive dye one bath process is adopted for performing dying on the nylon-cotton mixture fabric according to a traditional reactive dyeing technology, nylon color staining is can be effectively prevented, the soaping agent for staining resistance is used for soaping so as to further reduce color staining of nylon in the nylon / cotton mixture fabric, and meanwhile the cotton color yield is not affected.

Description

technical field [0001] The invention relates to a textile finishing process, in particular to a nylon / cotton interwoven fabric dyeing method for preventing nylon staining. Background technique [0002] Nylon / cotton blended fabric not only has the advantages of soft hand feeling, good air permeability and comfortable wearing of cotton fiber, but also has the advantages of good elasticity, high strength, light weight and wear resistance of nylon fiber. It is strong and can weave various patterns during the weaving process. It is one of the most popular fabrics at present. For nylon / cotton interwoven fabrics, especially nylon / cotton interwoven jacquard textiles, this kind of "white space" effect is often required, that is, one-bath dyeing of reactive dyes for nylon / cotton jacquard fabrics prevents nylon from staining and does not affect the color yield of cotton. During the dyeing and finishing process of nylon / cotton blended fabrics, due to the large amount of water-soluble a...

AI Technical Summary

Problems solved by technology

For nylon / cotton interwoven fabrics, especially nylon / cotton interwoven jacquard textiles, this kind of "white space" effect is often required, that is, one-bath dyeing of reactive dyes for nylon / cotton jacquard fabrics prevents nylon from staining and does not affect the color yield of cotton. During the dyeing and finishing process of nylon / cotton blended fabrics, due to the large amount of water-soluble anionic groups in the reactive dye molecules, under weakly acidic conditions, the -NH in the nylon molecules 3 + Electrostatic adsorption of positive and negative ions occurs, causing serious staining of nylon; in alkaline medium, the active group in reactive dyes and -NH in nylon 2 Reaction occurs, so that it is fixed on the nylon and stained firmly, which will cause great difficulty in dyeing and finishing.

The traditional nylon dyeing inhibitor needs to pretreat the nylon and cotton fabrics, the process is long, the efficiency is low, and the effect on the color of cotton is relatively large.