Cheese dyeing posttreatment process

Abstract

The invention provides a cheese dyeing posttreatment process including sequential first cold water washing, acid pickling, second cold water washing, soaping and low-temperature soaping, the soaping is as follows: in the conditions of pH of 6-7, temperature of 80-96 DEG C, adding a soaping enzyme of 0.2-0.4g / L and a reducing agent of 0.2-0.4g / L for soaping for 10-20 minutes, and the low temperature soaping is as follows: at the temperature of 50-70 DEG C, adding a soaping agent of 0.4-0.8g / L for soaping for 8-10 minutes. According to the cheese dyeing posttreatment process, the soaping enzyme is used for soaping treatment of dyed yarn, the soaping enzyme plays decomposition and decolorization effects on a hydrolysis dye and a color-unfixed dye, but does not play effects on a bonded dye, does not change shade, and can shorten the posttreatment process as soon as possible to improve the color fastness and reduce the production cost, so that the posttreatment process is more economic and more environmentally friendly, greatly alleviates the cost pressure on sewage treatment, and is in line with the green environmental protection requirements.

Description

technical field [0001] The invention relates to a soaping process, in particular to a post-treatment process for cheese dyeing. Background technique [0002] In the dyeing process of package yarn, reactive dyes are widely used because of their good application properties. Since there are many undyed dyes and hydrolyzed dyes in the dyed foot water, they must be washed off after dyeing to improve the dyeing effect. Fastness and yarn brightness. According to the traditional process, full washing, soaping, hot washing and color fixing after dyeing are indispensable processes, but consume a lot of water, electricity and steam, which makes the production cost high and generates a lot of sewage, which is not conducive to environmental protection And make the processing more difficult. The problems referred to above are the problems that should be solved in the post-treatment process of cheese dyeing. Contents of the invention [0003] The purpose of the present inventio...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a post-treatment process for cheese dyeing to solve the requisite process of fully washing, soaping, hot washing and color fixing after dyeing in the traditional process, but consumes a large amount of water, electricity and steam. The production cost remains high, and a large amount of sewage is generated, which is not conducive to environmental protection and makes the treatment more difficult.