A kind of reactive dye anti-staining low-temperature soaping agent and soaping method

Abstract

The invention provides a low-temperature soaping agent for anti-staining of reactive dyes, the low-temperature soaping agent comprises: 45%-55% of alkaline substances; 15%-25% of inorganic salts; 20%-20% of chelating dispersants 25%; oxidizing substances 10%‑15%; catalytic synergistic substances 0.05%‑0.3%. The reactive dye anti-staining low-temperature soaping agent of the present invention is applied in the soaping process after reactive dye printing or dyeing of fabrics or fibers, and can solve the problem of poor anti-staining effect and soaping effect of existing soaping agents in the soaping process. The efficiency is not high but the water consumption is too much, the soaping temperature is high and the energy consumption is too high, the color of the soaping residue is too high, and the COD and total nitrogen are high.

Description

Technical field [0001] The present invention relates to the field of dyeing soaping off process, in particular to a low-temperature active anti-staining dye soaping agent and soaping method. Background technique [0002] Containing hydroxy, amino or imino group of fibers (e.g. cellulose fibers, protein fibers, nylon fibers, etc.), yarn or fabric during dyeing or printing, generally using reactive dyes, reactive dyes because bright colors are good dyeability, dyeing simple, low cost, and complete chromatographic characteristics, and reactive dyes is a reactive dye, the reactive group in its molecule contained in the dyeing process can be hydroxyl, amino or imino group in the reaction with the fiber (e.g. nucleophilic substitution or nucleophilic addition reaction) to generate a strong covalent bond, which has a high color fastness. However, when printing or dyeing fiber-reactive dyes and can not do all, about 70% utilization, there will be some of the unreacted dye and the dye on ...

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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