Cold pad-batch dyeing method with active dyes capable of realizing color correction successfully at one time

Abstract

The invention provides a reactive dye cold pad-batch one-step successful color-correction dyeing method. The dyeing method comprises the following working procedures that: a homochromous scale is established; a hand sample is manufactured; and a field simulation hand sample and a field simulation bulk sample are manufactured. The method adopted for manufacturing the hand sample comprises the following steps that: reactive dye is uniformly dissolved into water, and a dye solution is obtained; an auxiliary agent is mixed with the dye solution, and mixture is obtained; the mixture is mixed with an alkaline agent solution, and a dye solution is obtained; a cloth is put into the dye solution and immersed for once and then rolled by a padder for once; after the immersed and rolled cloth is wrapped with a preservative film and sealed, the cloth is put into an oven or a constant-temperature water bath tank and dried for 60 hours; and the dried cloth undergoes water scrubbing, soap boiling andsecondary water scrubbing. The reactive dye cold pad-batch one-step successful color-correction dyeing method adopts combination of the oven method or the constant-temperature water bath method and the field environment simulation method when the hand sample is manufactured, and determines a prescription of the bulk sample according to the prescription of the hand sample and the ratio of 1 to 1, can realize one-step successful color-correction, and has low energy consumption, high dyeing quality, small dyeing wastewater discharge amount, simple working procedure and small number of used devices.

Description

technical field [0001] The invention provides a cloth dyeing method, in particular a reactive dye dyeing method. Background technique [0002] The existing pure cotton cloth reactive dyeing method is to determine the large sample prescription empirically according to the small sample prescription. The sample making process is: the pre-treated fabric is dipped twice on the padding car (that is, after dipping once in the dyeing solution tank, rolling once on the padding car, dipping once in the dyeing solution tank, and then rolling it on the padding car once). Pad once) dyeing solution, then use an oven to dry at 80-100°C, pad the lye after drying, and then use steaming (at 102°C) to fix the color or bake (at 160°C) to fix the color. color, and finally washed, soaped, washed, ironed and dried to make a small sample. The existing large sample (i.e. actual production) technological process is: the cloth is dipped twice in two pad dyeing solutions through the primer machine, t...

AI Technical Summary

Problems solved by technology

Due to the large difference between the small sample process and the large sample process, the large sample prescription is determined based on experience based on the small sample prescription (that is, the amount of dyes, auxiliaries, alkali agents, etc.), and the success rate of one-time color matching is very low (only about 30%)

Moreover, this reactive dyeing method consumes a lot of steam, water and electricity, requires a lot of equipment, and the process is complicated. Due to the long process and many equipments, swimming, front and rear color differences, yin and yang, left, middle and right color differences are prone to occur during the dyeing process. , creases, oil contamination and other problems, the discharge of dyeing wastewater is large, and the environmental pollution is serious