Bio-enzymatic desizing and fermentation one-bath process of pure cotton and cotton-containing blended denim garments

Abstract

The invention relates to a biological enzyme desizing enzyme wash-bath process of pure cotton and cotton-containing type blended denim clothing. The process comprises the following steps: (1) performing desizing enzyme wash-bath: adding the denim clothing into an industrial washing machine, adding water, heating the water to 40-50 DEG C, adding desizing enzyme wash-bath enzyme into the industrial washing machine, controlling the pH value of the solution to be 6.0-8.0, opening the industrial washing machine, preserving the heat and rotating for 30-90 minutes, discharging the solution and washing for two times with clear water; (2) neutralizing with a reducing agent: adding the clothing on which monkey is sprayed into the industrial washing machine, adding water, heating the water to 25-40 DEG C, adding the reducing agent into the industrial washing machine, controlling the pH value of the solution to be 5.0-7.0, controlling the total hardness of water of the solution to be 70-150 ppm, opening the industrial washing machine, preserving the heating and rotating for 5-20 minutes, discharging the solution and cleaning for 1-2 times with clear water. Compared with the prior art, the process has the advantages that the process is time-saving, simple, easy to control and rational, no toxic or harmful substance is produced, the production efficiency is obviously improved, the product quality is more stable, and the production comprehensive cost is greatly reduced.

Description

technical field [0001] The invention relates to a biological enzyme washing process, in particular to a biological enzyme desizing and fermenting one-bath process for pure cotton and cotton-containing blended denim garments. Background technique [0002] The existing washing process of pure cotton and cotton-containing blended denim garments is as follows: hand rub, cat whiskers → desizing → clean water → biological enzyme washing → clean water → dehydration drying → spraying horseliu (use a spray gun to remove potassium permanganate) The solution is sprayed on the clothing according to the design requirements, and the chemical reaction will cause the fabric to fade) → neutralization → clear water → soft finishing → dehydration and drying. It mainly uses sap oil or soda ash for desizing, and uses cellulase for biological enzyme washing to meet the requirements of garment washing. This process technology has many shortcomings for denim garments and sewage: 1. Extensive use of...

AI Technical Summary

Problems solved by technology

It mainly uses soap oil or soda ash for desizing, and uses cellulase for biological enzyme washing to meet the washing requirements of garments. This technology has many shortcomings for denim garments and sewage: ① Extensive use of chemicals, It will lead to high COD / BOD of sewage; ②The consumption of water, electricity and steam resources is large; ③Waste water and waste gas will seriously pollute the surface water system and the air; ④The desizing rate is not high enough to make the hand feel not soft enough

[0004] However, the above-mentioned washing water treatment process still has the disadvantages of large amount of chemicals, large consumption of water, electricity, and steam, etc.