Wool pretreatment liquid and application thereof

Abstract

The invention discloses wool pretreatment liquid and application thereof, and belongs to the field of fiber processing. According to the method, firstly, an efficient pretreatment solution is prepared, the solution is composed of tris (3-hydroxypropyl) phosphine, urea, an efficient penetrant JFC-M and micromolecular polyethylene glycol, through simple dipping treatment, a tris (3-hydroxypropyl) phosphine reducing agent evenly permeates into hair fibers in advance, and after drying, due to protection of the polyethylene glycol, the tris (3-hydroxypropyl) phosphine reducing agent can be removed from the hair fibers; and failure caused by air oxidation can be avoided in the storage process. When the treated hair fibers are processed again or dissolved in the ionic liquid, the reducing agent stored in the fibers can be quickly released at high temperature, disulfide bonds in the fibers are damaged, and the treatment efficiency is remarkably improved. The method has the characteristics of strong selectivity, good stability and flexible operation, and effectively solves the problem that the hair fiber is difficult to dissolve due to the fact that the disulfide bond cannot be quickly damaged.

Description

technical field [0001] The invention relates to a wool pretreatment liquid and its application, belonging to the field of fiber processing. Background technique [0002] The added value of natural keratin fibers such as wool and camel hair is extremely high, but only a very small amount of fine hair can be used as a textile raw material. Therefore, every year, the textile industry and animal husbandry industry will produce tens of thousands of tons of leftovers, which not only causes a waste of resources, but also causes great pressure on the natural environment. [0003] The keratin molecules of hair fibers contain a large number of disulfide bonds, which are connected to each other, making the protein molecules present a stable three-dimensional network structure, which leads to the extremely stable physical and chemical structures of natural keratin fibers. But this also has a great impact on its subsequent processing performance. For example: in the dyeing and finishin...

AI Technical Summary

Problems solved by technology

[0006]The large number of disulfide bonds rich in natural keratin fibers such as wool and camel hair have caused great problems to their subsequent processing performance, especially their dissolution. During the process of dissolving keratin fibers, disulfide bonds prevent keratin fibers from being effectively dissolved

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