Pulpy dye composite for dyeing island superfine nylon/ polyurethane synthetic leather

Abstract

The invention relates to a pulpy dye composite for dyeing island superfine nylon / polyurethane synthetic leather. The pulpy dye composite comprises three parts, namely a penetrating agent, a plastic swelling agent and a dye solubilizing agent, wherein the penetrating agent comprises N-decyl azone, N-isooctyl pyrrolidone, triamyl phosphate, sulphobetaine, triethylene glycol methyl ether (TGME), dipropylene glycol diethyl ether, dimethyl valnoctamide and water; the plastic swelling agent comprises N-isopropyl phthalimide, N-(n-butyl)phthalimide and alkyl naphthalene polyoxyethylene ether phosphate; and the dye solubilizing agent comprises thiourea oxide, hydroxylamine sulphate and N-ethoxyl sulfinic salt. The preparation of the dye composite comprises dyeing, adjusting a dye bath, converting, reducing the temperature and draining liquid. The dye composite has the beneficial effects that the color fastness is better than the color fastness of the dyeing with disperse dye and acidic dye; and the staining fastness on multiple groups of fiber is especially enhanced by one level or more than one level.

Description

【Technical field】 [0001] The invention belongs to the field of chemical industry, and in particular relates to a slurry dye composition suitable for superfine nylon and polyurethane synthetic leather mixed component fabrics. 【Background technique】 [0002] Synthetic leather with ultra-fine nylon fibers and polyurethane as the base is used in interior decoration and fabrics such as aircraft, automobiles, clothing, boots, leather bags, etc., and the highest international price can reach 70 US dollars per meter. The price for quality problems is only RMB 70 per meter. Improving quality is urgent. The main problem in quality is the low color fastness of the above-mentioned synthetic leather materials currently used with acid dyes. In addition, there are still poor dyeing permeability and frequent dyeing white spots. For example, the traditional dyeing of vat dyes with leuco bodies often causes synthetic leather color spots and insufficient strength. The problem. The technical...

AI Technical Summary

Problems solved by technology

The main problem in quality is the low color fastness of the above-mentioned synthetic leather materials currently used with acid dyes. In addition, there are still poor dyeing permeability and frequent dyeing white spots. For example, the traditional dyeing of vat dyes with leuco bodies often causes synthetic leather color spots and insufficient strength. The problem

The technical problem to be solved by the present invention is to overcome the defect in the above-mentioned background technology, propose to solve the white point problem with penetrating agent respectively, improve color fastness with swelling agent; question