Refining desizing process for chemical fiber fabric

Abstract

The invention discloses a refining desizing process for a chemical fiber fabric, and relates to the technical field of textile printing and dyeing pretreatment, and the refining desizing process comprises the following steps: (1) pre-shrinking; (2) refining, wherein a refining liquid is composed of the components, by weight, of 12-16 parts of sodium hydroxide with the mass concentration of 32%, 0.3-0.7 part of sodium tripolyphosphate, 5-10 parts of a refining aid, 1-5 parts of trisodium phosphate, 3-8 parts of a penetrating agent, 6-12 parts of a chelating dispersant, 3-6 parts of sodium cocoyl methyl taurate, 2-5 parts of cocamidopropyl amine oxide, 3-7 parts of alkyl glycoside and 8-15 parts of isomeric alcohol polyoxyethylene ether; wherein the grinding aid comprises the components of sodium hydrogen sulfite, sodium silicate and alkyl sulfate in a mass ratio of 2: 3: 3; (3) water washing; (4) steaming; (5) enzyme water washing; and (6) shaping. According to the invention, the problems that the desizing effect of the chemical fiber fabric is poor, and the dye uptake and the dyeing uniformity are poor are solved; a refining agent is used for refining and desizing the chemical fiber fabric, the desizing rate is high, and the dye uptake and the leveling property are good.

Description

technical field [0001] The invention relates to the technical field of pretreatment of textile printing and dyeing, more specifically, it relates to a scouring and desizing process for chemical fiber fabrics. Background technique [0002] Before the fabric is weaved, the warp yarns are generally subjected to sizing treatment (the warp yarns are dipped in the sizing solution and then dried), so that the fibers in the yarns are adhered to each other, and a thin film is formed on the surface of the yarns, which is convenient for weaving. Cotton fabrics are generally sized with starch or modified starch sizing or polyvinyl alcohol and polyacrylic acid (ester) sizing, and lubricants, softeners, preservatives and other additives are added to the sizing; the sizing will affect the fabric during the dyeing and finishing process. Wettability, and hinder the contact of chemicals to fibers. In order to ensure the color uptake rate of fabrics in the subsequent dyeing and finishing proce...

AI Technical Summary

Problems solved by technology

[0005] In the existing production process of this high-quality chemical fiber yarn-dyed fabric, the desizing process uses desizing agents and other auxiliary agents to remove oil stains, impurities and sizing on the fiber surface, but due to the high desizing temperature, the cellulose fiber The degree of oxidized cellulose produced under high temperature alkaline conditions is not easy to control, which will result in a lower dyeing percentage of the fabric in the subsequent dyeing process, and poor dyeing uniformity

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