Novel environment-friendly formaldehyde-free dye-fixing agent and preparation method thereof

Abstract

The invention discloses a novel environment-friendly formaldehyde-free dye-fixing agent which is prepared from crylic acid, ammonium hydrogen sulfite, epoxy chloropropane, benzyl triethyl ammonium chloride, hydroxypropyltrimethyl ammonium chloride chitosan, polyethylene polyamine resin condensation polymer, peroxysulphate, fatty acid polyethylene glycol ester, triallylamine, methacrylic acid beta-butyl hydroxyl and deionized water. The environment-friendly formaldehyde-free dye-fixing agent and a preparation method thereof are used for improving the colour fixation effect of a fabric on a dyestuff, the colour fastness of the fabric is improved, and good washing resistance and fastness are achieved.

Description

technical field [0001] The invention relates to the field of printing and dyeing auxiliaries. More specifically, the present invention relates to a novel environment-friendly formaldehyde-free color fixing agent and a preparation method thereof. Background technique [0002] Although the fiber or fabric has a relatively bright color after dyeing, it is prone to fading and staining during washing. This is because some dyes have soluble groups that make their fastness poor. It makes itself look old, and the faded color will stain other fabrics, which is very inconvenient. [0003] The current fabric dyeing is mainly dyed with reactive dyes. Since the molecular structure of reactive dyes contains hydrophilic groups such as benzenesulfonic acid groups and carboxylic acid groups, when dyeing dark colors, dyes that are fixed due to excessive concentration often occur. The amount is limited, so that there are a lot of unfixed dyes on the dyed fabric, resulting in unqualified colo...

AI Technical Summary

Problems solved by technology

[0002] Although the fiber or fabric has a relatively bright color after dyeing, it is prone to fading and staining during washing. This is because some dyes have soluble groups that make their fastness poor. It makes itself look old, and the faded color will stain other fabrics, which is very inconvenient

[0003] The current fabric dyeing is mainly dyed with reactive dyes. Since the molecular structure of reactive dyes contains hydrophilic groups such as benzenesulfonic acid groups and carboxylic acid groups, when dyeing dark colors, dyes that are fixed due to excessive concentration often occur. The amount is limited, so that there are a lot of unfixed dyes on the dyed fabric, resulting in unqualified color fastness, poor wet fastness, and the particle size of the dye can also affect the soaping fastness of dyeing

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