Reactive dyeing assistant of linen fabric and application

Abstract

The invention discloses a reactive dyeing assistant of linen fabric. The reactive dyeing assistant is prepared from a pretreating agent, an accelerating agent and a color fixing agent, wherein the pretreating agent is prepared from the following components: laccase with concentration of 13-15 U / L, xylanase with concentration of 26-28 U / L, pectinase with concentration of 29-31 U / L, a nonionic surfactant with mass fraction of 0.2-0.3 g / L and EDTA with mass fraction of 0.3-0.5 g / L; the accelerating agent comprises the following raw materials: quaternary ammonium cationic polyacrylamide, nano-degraded chitosan, graphene oxide, branched heterogeneous alcohol ether, rare earth GdCl3, potassium sodium tartrate and deionized water; the color fixing agent comprises the following raw materials in parts by weight: 15-35 parts of biomass-based waterborne polyurethane microemulsion, 10-20 parts of amino silicone oil and 45-65 parts of deionized water. The reactive dyeing assistant of the linen fabric has the advantages of mild use condition, high dye-uptake and color fastness and simple aftertreatment.

Description

technical field [0001] The invention relates to the technical field of textile printing and dyeing, in particular to a reactive dye dyeing auxiliary for linen fabrics and its application. Background technique [0002] Linen fabric has excellent properties such as sweat absorption, breathability, dryness, antiseptic and antibacterial, and is widely used in the field of textile and clothing. The main component of hemp fiber is cellulose, which also contains some impurities such as lignin and semi-fibers. Due to the microstructure of flax fiber-high crystallinity, compact structure, small inclination angle, etc., the flax fiber has poor dyeability and dyeing rate Low color fastness, poor color fastness, and dark shade. At present, there are many methods of adding dyeing auxiliaries in the dyeing bath to improve the dyeing rate and color fixation rate, and some results have been achieved, but most of them have harsh temperature and pH conditions, The post-processing operation i...

AI Technical Summary

Problems solved by technology

The addition of a large amount of neutral salt makes the printing and dyeing wastewater cause serious pollution to the environment

If the wastewater is discharged directly, the high permeability of salt will lead to salinization of the soil around the river and lake, resulting in the loss of the land's ability to cultivate and damage the ecological environment

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