Micro-crosslinking type poly(methacryloxyethyltrimethyl ammonium chloride) modified color fixing agent and preparation method thereof

Abstract

The invention relates to the technical field of color fixing agents and provides a micro-crosslinking type poly(methacryloxyethyltrimethyl ammonium chloride) modified color fixing agent which is capable of well improving the fastness of the textile to wet rubbing and the color fastness of the textile to washing. The micro-crosslinking type poly(methacryloxyethyltrimethyl ammonium chloride) modified color fixing agent comprises the following raw material components in parts by weight: 50-60 parts of methacryloxyethyltrimethyl ammonium chloride, 0.25-5 parts of epoxy compound, 0.1-2 parts of crosslinking agent, 0.02-0.3 part of initiator and 35-45 parts of deionized water, wherein the methacryloxyethyltrimethyl ammonium chloride is a water solution with a weight percent concentration of 65-98 percent. Meanwhile, the invention provides a preparation method of the micro-crosslinking type poly(methacryloxyethyltrimethyl ammonium chloride) modified color fixing agent.

Description

technical field [0001] The invention relates to the technical field of color fixing agents, in particular to a micro-crosslinked polymethacryloyloxyethyltrimethylammonium chloride modified color fixing agent and a preparation method thereof. Background technique [0002] Reactive dyes have excellent color fastness, bright color, wide chromatographic range, and simple application process, and are widely used in the printing and dyeing industry. However, during the printing and dyeing process, the bonding reaction and hydrolysis reaction between reactive dyes and cellulose fibers exist at the same time. The existence of hydrolysis reaction leads to relatively low color fixation rate of reactive dyes, and the wet rubbing fastness of dyed fabrics is especially medium and dark. The wet rubbing fastness of colored fabrics is low, so the fabrics are also treated with a color-fixing agent after dyeing. [0003] The molecular structure of reactive dyes contains reactive groups, whi...

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Problems solved by technology

However, in the printing and dyeing process, the bonding reaction and hydrolysis reaction between reactive dyes and cellulose fibers exist at the same time. The existence of hydrolysis reaction leads to relatively low color fixation rate of reactive dyes, and the wet rubbing fastness of dyed fabrics is especially medium and dark. The wet rubbing fastness of dyed fabrics is low, so the fabrics are also treated with color-fixing agents after dyeing

[0003] The molecular structure of reactive dyes contains reactive groups, which can react with fibers to produce covalent bonds, so the color fastness is relatively high. However, during the dyeing process of reactive dyes, unreacted dyes and hydrolyzates cannot be completely washed away. This part of the dye will fade, and at the same time, the covalent bond on the dye will also be hydrolyzed to break the bond. With the improvement of the fabric's dyeing fastness, it is still necessary to use a color-fixing agent when dyeing some dark fabrics

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