Desizing dyeing and finishing process

Abstract

The invention relates to the technical field of printing and dyeing, and aims at providing a desizing dyeing and finishing process with high desizing rate and little pollution. The process is characterized by comprising desizing treatment, dyeing treatment, cleaning, dehydration and shaping, wherein the desizing treatment includes refining and water washing; for the refining, cloth to be treated is put into a jig dyeing machine; refining is performed for 2 to 5 times in refining liquid A and refining liquid B by turns; the refining temperature is 95 to 105 DEG C; the refining time is 25 minutes / time. For the water washing, countercurrent rinsing is performed for 40 to 60min under the condition of 95 to 105 DEG C; water washing is repeated for 1 to 2 times. The desizing dyeing and finishingprocess has the effects that the desizing efficiency is high; the generated wastewater pollution is little; the sizing agent at the cloth surface is removed in a swelling-dissolution mode; the desizing dyeing and finishing process can be used for desizing dyeing and finishing of various kinds of cloth such as memory cloth and high-density Tuff.

Description

technical field [0001] The invention relates to the technical field of printing and dyeing, in particular to a desizing, dyeing and finishing process. Background technique [0002] Dyeing and finishing is the concept of modern printing and dyeing. It is a scientific definition after chemical finishing is integrated into the printing and dyeing industry. It specifically refers to the process of chemical treatment of textile materials. The printing and dyeing industry has a history of nearly a hundred years in our country. With the in-depth research on the subject of chemistry, modern printing and dyeing has developed rapidly in the past two decades. The dyeing and finishing process includes pretreatment, dyeing, printing and finishing. Due to the characteristics of the textile material itself or the characteristics endowed in the weaving process, it is easy to be scratched during dyeing or the dyeing effect is poor. Pretreatment is to change The characteristics of textile ma...

AI Technical Summary

Problems solved by technology

Common methods of desizing include alkali desizing, enzyme desizing, acid desizing and oxidative desizing, among which, acid desizing and oxidative desizing are easy to damage fibers, have relatively poor safety performance, and are easy to cause damage to the textile material itself; alkali The efficiency of desizing is relatively low; enzyme desizing cannot remove the impurities of textile materials, and there are certain defects

[0004] The Chinese patent whose authorization notification number is CN103173982B discloses a kind of desizing solution for polyester fabric, which is composed of sodium tripolyphosphate, hydrogen peroxide, binuclear manganese complex, 4-(2-nonanoyloxyethoxycarbonyloxy)benzenesulfonic acid Composed of sodium, N-carboxymethyl-N-methylglycinate iron (Ⅲ) sodium salt and sodium hydroxide, the pH value of the desizing solution is 11-12, using this desizing solution to achieve a higher desizing It also improves the damage and destruction of fabrics, but the wastewater produced by this desizing solution is seriously polluted, the difficulty of wastewater treatment is increased, the treatment cost is increased, and it is easy to cause pollution and load to the environment.

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