Dyeing technique for cotton fiber cheese

Abstract

The invention discloses a dyeing technique of cotton fiber cheese, the process flow of the dyeing technique of the cotton fiber cheese comprises preprocessing cotton fiber cheese in a main vat, dyeing and finally processing in turn. The invention is characterized in that in the upper flow process, when water gets into the main vat, water-inlet water level in the main vat is located on one second to two thirds of the total height of stacking of the cheese in the main vat, and water level control model of water inlet adopts a continuous way, dyeing process adopts a salt pre-adding technique, namely anhydrous sodium sulfate is firstly added, and dyeing is followed. Since the invention changes the original dye with full vat of water to a no full vat of water, and the water level control way of water inlet adopts a continuous way, salt pre-adding technique is adopted in the dyeing process, therefore, the invention can reduce energy consumption, improve rate of dye-up-take of dye, lower sewage treatment cost, and reduce the pollution to environment, and the working properties are excellent.

Description

technical field [0001] The invention provides a cotton fiber cheese dyeing process, which belongs to the technical field of textile printing and dyeing. Background technique [0002] Cotton fabrics are natural cellulose fibers that are widely favored by consumers. However, in the dyeing industry, reactive dyes and natural cotton fibers and their blends are increasingly challenged by energy shortages such as water resources and electric steam. At the same time, with the improvement of people's living standards, more and more attention is paid to environmental protection requirements. In the prior art, the dyeing process of the package yarn is done by immersing the yarn in the water level. Although the technical control of this dyeing method is simple, it is relatively conservative, the dyeing bath is relatively large, the amount of dyeing and chemical materials used is large, and the energy consumption is large. The amount of waste water in each step is large, which increase...

AI Technical Summary

Problems solved by technology

In the prior art, the dyeing process of the package yarn is done by immersing the yarn in the water level. Although the technical control of this dyeing method is simple, it is relatively conservative, the dyeing bath is relatively large, the amount of dyeing and chemical materials used is large, and the energy consumption is large. The amount of waste water in each step is large, which increases the difficulty and cost of sewage treatment, making the cost of dyeing relatively high