Iron removing process for flax roving

Abstract

The invention relates to an iron removing process for flax roving and belongs to the technical field of flax processing. The iron removing process includes: iron ion removing is performed on the flax roving to remove iron ions in hemp fibers, then normal degumming and bleaching are performed on the roving, and finally the roving is washed. The iron removing process has the advantages that the iron removing is performed before the oxygen bleaching, hydrogen peroxide is prevented from being catalyzed by iron, the strength of the roving is increased effectively, the reaction during the oxygen bleaching is stable and even, and damage to fibers is small.

Description

technical field [0001] The invention relates to a new iron removal process for flax roving, which can effectively improve the quality of flax yarn. It is a process for removing iron from flax roving first, followed by a normal degumming and bleaching process, and is mainly used in the spinning process of flax yarn. production, which belongs to the technical field of flax treatment. Background technique [0002] During the growth process of flax, while absorbing nutrients from the soil and water, it also absorbs a large amount of heavy metals, which affects the quality and processing technology of flax, especially iron ions, if not removed, during the hydrogen peroxide bleaching process It will cause local damage to the fiber; because iron ions have a catalytic effect on the hydrogen peroxide reaction, the hydrogen peroxide in the iron-containing place in the flax reacts violently and oxidizes the cellulose, resulting in strong fiber damage. [0003] Although pickling is use...

AI Technical Summary

Problems solved by technology

Although pickling is used, because the pertinence is not strong, iron ions still exist after the flax roving is degummed and bleached, so it still has the above-mentioned defects