A double-width linkage pretreatment method for pure cotton fabric

Abstract

The invention belongs to the technical field of fabric pretreatment technology in the printing and dyeing industry, and in particular relates to a double-width linkage pretreatment method for pure cotton fabrics. That is, a process of double-width desizing, scouring, bleaching, and double-width mercerizing, especially the process of double-width desizing, double-width scouring and double-width bleaching of fabrics, including double-width desizing, double-width scouring, double-width bleaching, and double-width mercerization. The cloth feeding method is double-width feeding Cloth, the steps are as follows: add surfactant HF-A01: 1-4g / L, surfactant HF-JL4: 2-6g / L, caustic soda 45-50g / L, perform double-width padding, and then put the fabric at 90 Steam at -94°C for 2 hours; then wash in hot water, cold water, and squeeze water in sequence; then perform the second double-width padding bleaching solution 2-2.5g / L, then sequentially wash in cold water, squeeze water; Padding with sulfuric acid 1-1.5g / L three times, followed by cold water washing and double-width mercerizing, the treatment is completed. The process steps are simple, the energy consumption is reduced by 1 time, the desizing effect is good, the damage to the cloth surface is reduced, and the production efficiency is improved by 1 time.

Description

technical field [0001] The invention belongs to the technical field of fabric pretreatment technology in the printing and dyeing industry, and in particular relates to a double-width linkage pretreatment method for pure cotton fabrics. Background technique [0002] In the printing and dyeing process, the pre-treatment process of printing and dyeing, the traditional process is to carry out the four steps of single-width desizing, single-width scouring, single-width bleaching, and single-width mercerizing step by step, which consumes a lot of energy. [0003] Most printing and dyeing manufacturers use single-width desizing to remove the size on the fabric, which consumes a lot of steam and water. Moreover, due to single-width production, the production efficiency is low. In addition, the cost per 100 meters is 50 higher. %. [0004] The scoured single-width pure cotton fabric still needs to remove residual cotton seed hulls, remove pigment, and improve whiteness, so the fabri...

AI Technical Summary

Problems solved by technology

Bleaching in the prior art generally adopts a high-temperature bleaching process. The disadvantages of this method are: 1. The bleaching temperature of hydrogen peroxide is above 98°C, and the energy consumption in the process is high; 2. The damage to the fiber is increased and the strength is reduced. If the treatment bath contains Excessive iron ions or other heavy metal ions, the damage will be more serious; 3. The fabric is more degreased, which affects the natural lubricity of the fiber, resulting in a rough hand feeling of the fabric and easy pilling