Flax fiber degumming process

Abstract

The present invention discloses a flax fiber degumming process, which adopts a process such as a high temperature and high pressure pretreatment, water washing, chemical degumming, acid washing, water washing, dehydration and drying, wherein the high temperature and high pressure pretreatment method provides characteristics of short treatment time and low damage on fibers compared to the ordinary acid alkali pretreatment method so as to provide effects of low residual gum content, high single fiber strength and effective flax fiber quality improvement, the chemical degumming process adopts hydrogen peroxide and alkali to act on flax fibers, and the hydrogen peroxide reacts with lignin to form oxidized lignin easily dissolved in an alkali liquid, such that the lignin of the fibers is effectively removed, degumming and bleaching are achieved, water and electricity resources are saved, and production efficiency is increased. With the present invention, a plurality of problems of low comprehensive long flax content, unstable quality , high residual gum content, heavy environment pollution and the like of the flax fiber finished product in the prior art are overcome, and strong application prospects are provided.

Description

technical field [0001] The invention relates to a fabric degumming process, in particular to a flax fiber degumming process. Background technique [0002] Flax fiber is the oldest textile fiber in the world, and the fabrics made of it are widely used. The fabric of flax fiber not only has excellent heat dissipation and air permeability, but also has strong hygroscopicity, so it is known as "natural air conditioner". Won the favor of consumers. At present, the wet spinning method is mainly used in China. The process is complicated, the process is long, the spinnable count is low, and the requirements for equipment are high. It is difficult to blend flax with other fibers in wet processing, and the yarn is stiff, so it is difficult to develop high-grade, For many kinds of textile products, in order to overcome the above defects, the flax fiber must be finely processed and degummed before spinning. At present, most of the traditional degumming methods such as natural water ret...

AI Technical Summary

Problems solved by technology

At present, the wet spinning method is mainly used in China. The process is complex, the process is long, the spinnable count is low, and the requirements for equipment are high. It is difficult to blend flax with other fibers in wet processing, and the yarn is stiff, so it is difficult to develop high-grade, For many kinds of textile products, to overcome the above defects, the flax fiber must be finely processed and degummed before spinning. At present, most of the traditional degumming methods such as natural water retting used in production are acid or alkali. The pretreatment method has many problems, such as low comprehensive growth rate, unstable quality, high residual glue rate and serious environmental pollution.