Active dye anti-staining low-temperature soaping agent and method

Abstract

The invention provides an active dye anti-staining low-temperature soaping agent. The low-temperature soaping agent is prepared from, by mass, 45-55% of alkaline substances, 15-25% of inorganic salts,20-25% of a chelating dispersing agent, 10-15% of oxidizing substances and 0.05-0.3% of catalytic synergistic substances. The active dye anti-staining low-temperature soaping agent is applied to a soaping technology after printing or dyeing of an active dye of textiles or fibers, and thus the problems can be solved that an existing soaping agent is bad in anti-staining effect, low in soaping efficiency and high in water consumption amount, soaping temperature and energy consumption in the soaping process, soaping residual liquid has extremely high chroma, COD and total nitrogen.

Description

technical field [0001] The invention relates to the field of dyeing and finishing soaping technology, in particular to a reactive dye anti-staining low-temperature soaping agent and a soaping method. Background technique [0002] Reactive dyes are generally used when dyeing or printing fibers containing hydroxyl, amino or imino groups (such as cellulose fibers, protein fibers, nylon fibers, etc.), yarns or fabrics, because reactive dyes have bright colors and are uniform. Good dyeability, easy dyeing, complete chromatogram and low cost, etc., and reactive dyes are reactive dyes, the active groups contained in their molecules can react with hydroxyl, amino or imino groups in the fiber during the dyeing process (such as Nucleophilic substitution or nucleophilic addition reaction) to form a strong covalent bond, so it has high color fastness. However, when printing or dyeing, the dye cannot fully react with the fiber, and the utilization rate is about 70%. There will be some u...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a kind of reactive dye anti-staining low-temperature soaping agent, which is applied in the soaping process after the reactive dye printing or dyeing of fabric or fiber, to solve the anti-staining effect of the existing soaping agent in the soaping process. Poor effect, low soaping efficiency and too much water consumption, high soaping temperature and too high energy consumption, too high color of soaping raffinate, high COD and total nitrogen, the specific scheme of the present invention is as follows:

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