Efficient bleaching and dyeing technology of cheese

Abstract

The invention relates to an efficient bleaching and dyeing technology of cheese. The technology concretely comprises the following steps: 1, carrying out a rapid oxygen bleaching brightening bath process: draining water, carrying out hot water washing at 60DEG C for 10min, carrying out cold water washing for 10min, and carrying out softening treatment by using an anion softener 307 at 40DEG C for 20min; 2, carrying out a dyed yarn pretreatment process: draining water, pickling by using 0.8% acetate acid gracial at 60DEG C for 10min, carrying out hot water washing at 80-90DEG C for 10min, carrying out cold water washing, deoxidizing at 50DEG C for 15min, and dyeing; and 3, carrying out a short flow technology, wherein a formula comprises 1% of a chelating agent SNS, 2.5% of a rapid oxygen bleaching agent BLG, and 4% of hydrogen peroxide. The pretreatment process saves time and energy; the cheese short flow process and the rapid oxygen bleaching process are simple, short and cheap. The technology has the advantages of less weight loss, less strength reduction, good handle of obtained cheese, simplified operation and clean production.

Description

technical field [0001] The invention relates to a high-efficiency bleaching and dyeing process technology for cheese, which belongs to the technical field of spinning. Background technique [0002] Cotton, hemp and its blended and interwoven fabrics and yarns with chemical fibers, the oxygen bleaching process generally uses various additives such as caustic soda, penetrating agent, oxygen bleaching stabilizer, chelating agent and hydrogen peroxide; due to the variety of additives in production and processing, Factors such as high pH value of the bleaching liquid and long process time can easily lead to high weight loss rate of the fabric, easily damaged and brittle fibers, large strength drop, rough hand feeling, many times of washing in the process, and high water and energy consumption. Bleached goods absorb alkali unevenly and are difficult to clean in a short time, and dyeing defects are prone to appear in the subsequent process, especially when blended or interwoven fab...

AI Technical Summary

Problems solved by technology

[0002] Cotton, hemp and its blended and interwoven fabrics and yarns with chemical fibers, the oxygen bleaching process generally uses various additives such as caustic soda, penetrating agent, oxygen bleaching stabilizer, chelating agent and hydrogen peroxide; due to the variety of additives in production and processing, Factors such as high pH value of the bleaching liquid and long process time can easily lead to high weight loss rate of the fabric, easily damaged and brittle fibers, large strength drop, rough hand feeling, many times of washing in the process, and high water and energy consumption. Bleached goods absorb alkali unevenly and are difficult to clean in a short time, and dyeing defects are prone to appear in the subsequent process, especially when blended or interwoven fabrics are oxygen bleached, caustic soda will cause other damage; in addition, the pH value of the residual liquid after using caustic soda COD value and BOD value are high, and the burden of sewage treatment is heavy