Pure cotton fabric reactive dye wet short steaming dark color dyeing method

Abstract

The invention provides a pure cotton fabric reactive dye wet short steaming dark color dyeing method and belongs to a fabric dyeing method. The method comprises the steps that a vinyl sulfone reactivedye is selected for use; a penetrant CWA, carbamide and a chelating dispersant DF101 are dissolved in a dye solution to obtain mixed liquor, sodium hydroxide and sodium silicate with the concentration being 38 baume degree are dissolved in water to obtain an alkaline agent solution, and the mixed liquor and the alkaline agent solution are mixed according to the volume ratio of 8:2 and placed intoa dye liquor tank to obtain dye liquor; and fabric is placed into the dye liquor for immersion and then rolled once through a padder, steaming is performed for color fixing, and then water washing, soap boiling and water washing are performed in sequence, so that dyeing is completed. According to the pure cotton fabric reactive dye wet short steaming dark color dyeing method provided by the invention, immersion and rolling are completed at a time after the dye and the alkaline agent solution are mixed, immersion, rolling, steaming and water washing are completed at a time, the procedures aresimple, the flow path is short, the number of used equipment is small, energy consumption is reduced, no migration occurs, the dyeing quality is high, and the dye permeability, uniformity and flatnessof the dyed fabric are better than those of a dyed fabric with a conventional dyeing method.

Description

technical field [0001] The invention provides a method for dyeing fabrics, especially a method for dyeing dark colors with reactive dyes. Background technique [0002] The large sample (that is, the actual production) process flow in the existing reactive dye dyeing method for pure cotton fabrics is that the pure cotton fabric is dipped in two pad dyeing solutions by a primer machine, and then the fabric is dried with two rows of infrared lamps, and then dried. Dry with hot air, pad the lye after drying and fall off the cloth, then use a steamer to steam at 102°C for 2-3 minutes or use a baking machine to bake at 160°C for 2 minutes, and then dry and then drop. The cloth is finally dyed through post-processing steps such as washing, soaping, and washing. The disadvantage is that it consumes a lot of steam, water, electricity and auxiliaries, requires a lot of equipment, complex procedures, and there is migration on the fabric, which is prone to quality problems. The succes...

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