Printing and dyeing technology for chemical fiber woven cloth

Abstract

The invention discloses a printing and dyeing technology for chemical fiber woven cloth which comprises the following steps: S1, desizing: utilizing a desizing agent and water or steam to finish the desizing step on cloth in an open width desizing machine; S2, drying: performing primary drying operation on the cloth in a drying oven, wherein the dried cloth is in a damp state; S3, pre-shaping: when the cloth is in the damp state, utilizing a shaping machine to perform pre-shaping operation on the cloth; S4, alkali decrement: utilizing water and liquid caustic soda to perform water bath treatment on the cloth; S5, dyeing; S6, dewatering: performing dewatering treatment on moisture of the dyed cloth to make the cloth in the damp state: S7, finished product shaping: performing ironing and shaping operation on the dewatered cloth through the shaping machine. In the printing and dyeing technology for the chemical fiber woven cloth disclosed by the invention, after the cloth is desized and dried, the cloth is in the damp state and has certain plasticity; the cloth is flattened at first, and then the cloth is ironed under high temperature; thus, cloth stress is eliminated, the cloth is ina flat and slack state before the alkali decrement and dyeing, and the dyeing quality is conveniently improved.

Description

technical field [0001] The invention relates to a dyeing method, in particular to a printing and dyeing process for chemical fiber woven fabrics. Background technique [0002] In the textile industry, the warp yarns must be sized and dried first, and then the sized warp yarns are spun into coarse gray cloth, and then the coarse gray cloth is pre-treated, dyed and post-treated, and the dyed cloth is used to make clothes. . For fiber woven fabrics, the printing and dyeing process has a very important influence on the coloring of fiber woven fabrics and the quality of the cloth. [0003] The existing printing and dyeing process of chemical fiber woven fabrics includes desizing, drying, alkali weight reduction, dyeing, final product setting and packaging. Among them, desizing is to use steam, water and desizing agent to carry out dip-dyeing and desizing treatment on the coarse gray cloth in the open width desizing machine. Adsorbing the dirt on the contamination makes the fab...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a printing and dyeing process of chemical fiber woven cloth, which solves the problem of wrinkles before dyeing and improves the quality of dyeing