Purified cotton cloth reactive dye wet steaming deep color dyeing method

Abstract

The invention provides a pure cotton cloth reactive dye wet short steaming dyeing dark color method, belonging to a cloth dyeing method. The dyeing method comprises the following steps that: a vinyl sulfone reactive dye is selected, and a penetrating agent CWA, urea and a chelated dispersing agent DF101 are dissolved in a dye solution so as to obtain a mixed solution; sodium hydroxide and sodium silicate with a concentration equal to 38 baume degrees are dissolved in water to obtain an alkaline agent solution; the mixed solution and the alkaline agent solution are mixed according to the volume ratio of between 8 and 2, and are fed into a dye solution trough so as to obtain a dye solution; and when dipped in the dye solution for one time and rolled by a padder for one time, cloth is subjected to steam fixation and water washing, soap boiling and water washing so as to complete dyeing. The pure cotton cloth reactive dye wet short steaming dyeing dark color method completes dipping, rolling, padding, steaming and water washing at one step after the dye and the alkaline agent solution are mixed, thereby ensuring simple working procedure and short flow; moreover, the method adopts less equipment and has lower energy consumption, no migration, high dyeing quality and better dyeing penetration, evenness, and smoothness of dyed cloth than the prior dyeing method.

Description

technical field [0001] The invention provides a method for dyeing cloth, in particular a method for dyeing dark colors with reactive dyes. Background technique [0002] The large-scale (i.e. actual production) process flow in the existing pure cotton cloth reactive dye dyeing method is that the pure cotton cloth is dipped in two padding liquors twice through the primer machine, then the cloth is dried with two rows of infrared lamps, and then Dry it with hot air, pad the lye after drying the cloth, then steam it with a steamer at 102°C for 2-3 minutes or use a baking machine at 160°C for 2 minutes, then dry it and then drop it The cloth is finally dyed through post-treatment processes such as washing, soaping, and washing. Its disadvantage is that it consumes a large amount of steam, water, electricity and additives, requires a lot of equipment, and the process is complicated. There is swimming phenomenon on the fabric, which is prone to quality problems. The success rate ...

AI Technical Summary

Problems solved by technology

Its disadvantage is that it consumes a large amount of steam, water, electricity and additives, requires a lot of equipment, complex procedures, swimming phenomenon on the fabric, and is prone to quality problems. The dyeing solution and lye are separately padded, and the dyeing is not completed at one time. The success rate is low, and the discharge of dyeing wastewater is large, and the environmental pollution is serious

Now there are some dyeing methods with relatively simple procedures, which can only be used for dyeing light colors and cannot be used for dyeing dark colors