Efficient environment-friendly acidic color fixing agent and preparation method thereof

Abstract

The invention discloses an efficient environment-friendly acid fixing agent and a preparation method thereof, relates to the field of printing and dyeing aids, and aims to solve the problem that the existing acid fixing agent is not environmentally friendly. The product is prepared from the following raw materials in parts by weight: 18-21.7 parts of isopropanol, 0.26-0.44 parts of sodium persulfate, 5.8-7.2 parts of chitosan, 6.6-8.4 parts of iso-tridecanol polyoxyethylene ether, 1.8-2.7 parts of squalane, 87-102 parts of deionized water, 2.2-3.5 parts of strong alkali powder, 5-6 parts of 2-(2-ethoxyethoxy)ethyl acetate and 4.9-6.8 parts of dimethylamine. The fixing agent comprises widely sourced raw materials, does not contain formaldehyde, and meets the requirement of environmental protection; reactive groups are gathered on the surface of the product, and can be subjected to a crosslinking reaction with hydroxy in acid dye, so that the combination degree of the acid dye and clothis higher, and dry rubbing fastness, wet rubbing fastness and color fastness to washing of the acid dye are improved.

Description

technical field [0001] The invention relates to the field of printing and dyeing auxiliaries, in particular to an efficient and environment-friendly acid color fixing agent. Background technique [0002] Printing and dyeing, also known as dyeing and finishing, is a processing method and a general term for pretreatment, dyeing, printing, finishing, washing, etc. Although fibers and fabrics have bright colors after dyeing, they are prone to fading during washing And staining phenomenon, this is because some dyes have soluble groups that make their fastness poor. Once the fabric fades, it will not only make itself look old, but the faded color will also stain other fabrics, which is very inconvenient. People often use color-fixing agents to improve the color fastness of fabric dyes so that they will not fade. [0003] Fixing agent is one of the important auxiliary agents in the printing and dyeing industry. It can improve the color fastness of dyes on fabrics to wet treatment....

AI Technical Summary

Problems solved by technology

[0004] Acid dyes have bright color, high dyeing rate, and complete color spectrum. They are widely used in wool fabric, silk and nylon dyeing. Acid color fixing agent is a commonly used color fixing agent for acid dyes. The existing acid dyes Although the color-fixing agent can meet people's requirements for use, it contains formaldehyde and cannot meet environmental protection requirements.