Dispersing and active one bath dyeing technology of polyester-cotton fabric

Abstract

The invention provides a dispersing and active one bath dyeing technology of polyester-cotton fabric, comprising the following steps: (1) adjusting the temperature of a dye liquor to 38-42 DEG C, adding anhydrous sodium sulphate, and continuously reacting for 8-12 min; (2) adding a reactive dye, a disperse dye and a nonionic dye leveller, and continuously reacting for 8-12 min; (3) heating up to 63-65 DEG C, adding an anion fixing agent, and continuously reacting for 8-12 min; (4) heating up to 104-106 DEG C, and continuously reacting for 20-30 min; (5) heating up to 126-128 DEG C, and continuously reacting for 20-30 min; (6) washing for 8-12 min; (7) adding an alkaline soaping agent, heating up to 81-85 DEG C, continuously reacting for 15-20 min, and washing for 8-10 min. The dyeing technology has the advantages of simple process, energy saving and emission reduction, high dyeing efficiency, etc.

Description

technical field [0001] The invention relates to a polyester-cotton fabric dyeing process. Background technique [0002] Polyester-cotton fabrics are widely used in modern life, and are increasingly favored by consumers because of their superior wearability. Traditional polyester-cotton fabrics are dyed in multiple baths using disperse and reactive dyes, that is, pre-treatment oxygen bleaching → disperse Polyester dyed polyester → Cotton dyed with reactive dyes has the following disadvantages: the process takes a long time and the production efficiency is low; multi-bath dyeing requires a lot of water and energy, and the carbon emission is large; the sewage discharge is large and the sewage treatment is difficult. Moreover, it is difficult to control the success rate of the traditional polyester-cotton dyeing processing method at one time, which has become a difficult problem for printing and dyeing enterprises. Contents of the invention [0003] The purpose of the present...

AI Technical Summary

Problems solved by technology

[0002] Polyester-cotton fabrics are widely used in modern life, and are increasingly favored by consumers because of their superior wearability. Traditional polyester-cotton fabrics are dyed in multiple baths using disperse and reactive dyes, that is, pre-treatment oxygen bleaching → disperse Dyeing polyester → dyeing cotton with active materials has the following disadvantages: the process takes a long time and the production efficiency is low; multi-bath dyeing requires a lot of water and energy, and the carbon emission is large; the sewage discharge is large and the sewage treatment is difficult

Moreover, it is difficult to control the success rate of the traditional polyester-cotton dyeing processing method at one time, which has become a difficult problem for printing and dyeing enterprises.

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