A kind of acid color fixing agent and its preparation method and application method

Abstract

The invention relates to an acid color fixing agent, a preparation method and an application method thereof. The raw materials for the preparation of the acidic color fixing agent include: resin, 40%-50%; glacial acetic acid, 20%-40%; active body, 2%-8%; solvent, 5%-20%; deionized water, 10%-30%; and stabilizer, 3%-5%. Wherein said acidic color-fixing agent has the stability of color-fixing working liquid, no agglomerated particles, can avoid the generation of color-fixing spots in the fabric color-fixing process, reduces the color change of the fabric after color-fixing, improves the color fastness to washing, Color fastness to perspiration, etc.

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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