Acidic color fixing agent and preparation method and application method thereof

Abstract

The invention relates to an acidic color fixing agent and a preparation method and application method thereof, wherein the acidic color fixing agent is prepared from, by mass, 40-50% of resin, 20-40%of glacial acetic acid, 2-8% of an activator, 5-20% of a solvent, 8-20% of a sulfonating agent, 10-30% of deionized water, and 3-5% of a stabilizer, wherein the acidic color fixing agent has the advantages that a color fixing working liquid is stable, agglomeration particles are avoided, the generation of color fixing spots in the color fixing process of a fabric can be avoided, the color change of the fabric after color fixing is reduced, and the color fastness to washing, the color fastness to perspiration and the like are improved.

Description

technical field

[0001] The invention relates to a printing and dyeing auxiliary agent, in particular to an acidic color fixing agent and its preparation method and application method. Background technique

[0002] In textile printing and dyeing, nylon (nylon), silk, wool and their blended fabrics are generally dyed with acid dyes. Acid dyes have complete color spectrum, bright colors and high dyeing rate, and are often used for dyeing nylon and protein fibers. Due to the small molecular weight of acid dyes, dyeing fibers with acid dyes needs to rely on the combination of ionic bonds between dye molecules and the effects of partial hydrogen bonds and van der Waals forces. Due to the presence of water-soluble groups such as carboxylic acid groups or sulfonic acid groups in the molecular structure of acid dyes, the wet fastness of dyed fabrics is poor. Therefore, in order to improve the fastness after dyeing with acid dyes, especially the fastness of medium and dark varieties,...

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