Desizing and decolorizing composite enzyme and nostalgic-style denim fabric washing process thereof

Abstract

The invention relates to a desizing and decolorizing composite enzyme and a nostalgic-style denim fabric washing process thereof. The desizing and decolorizing composite enzyme is prepared from the following components in percentage by weight: 30% to 35% of desizing enzyme, 13% to 16% of ligninase; 20 to 26% of neutral cellulase, 26% to 32% of tetrasodium ethylenediaminetetraacetate, 5% to 8% of anonionic surfactant and the balance of deionized water. The nostalgic-style denim fabric washing process comprises the following steps of: desizing and decoloring treatment, potassium permanganate strong decolorizing treatment, demanganization treatment, normal temperature washing, polishing soft treatment, dehydration and drying treatment. According to the process, the desizing and decolorizingare carried out in one bath, so that the water and energy are saved, the abrasion caused by machinery to denim fabrics is decreased, the strong damage is reduced, the discharge of harmful substances is decreased, and the washed denim fabrics are free of pilling and furring and have softer hand feeling.

Description

technical field [0001] The invention relates to a fabric treatment process, in particular to a desizing and decolorization compound enzyme and a nostalgic-style denim fabric washing process. Background technique [0002] Denim clothing did not become popular in my country until the 1960s and 1970s, and denim has always been developed along with the development of denim clothing. If you trace the development history of denim, it should be hundreds of years. After the baptism, it will last forever, and the market is getting bigger and bigger. Because denim fabrics and clothing are suitable for all ages and have strong versatility, it will become one of the fashions favored by domestic and foreign clothing consumers for a long time. It can be said that when denim clothing was on the rise in China, thousands of consumers in China couldn't let go of their nostalgia for her in "spring, summer, autumn and winter". [0003] Washing and finishing of denim fabrics is an important proc...

AI Technical Summary

Problems solved by technology

[0006] Although the above-mentioned patent has the advantages of quick removal of residual manganese ions, reduction of processing time, color removal of bleaching solution, and low COD of sewage, the number of times of washing with water increases, which increases the wear rate of machinery on denim garments, and the strength of the garments is greatly damaged. Waste water and electricity, not conducive to water and energy saving

In addition, the amount of potassium permanganate and phosphoric acid in Maliu water is large, and the unneutralized potassium permanganate is discharged with the water, aggravating the pollution of water resources, which is extremely harmful to aquatic organisms in the river, and hydroxylamine sulfate is used as a reducing agent. There are many hazards, such as irritating eyes and skin, and may cause sensitization in contact with skin. Long-term exposure will seriously endanger health and is extremely toxic to aquatic organisms.