Waterless dyeing disperse dye color paste, preparation method and application thereof

Abstract

The invention provides a waterless dyeing disperse dye color paste, which is composed of the following raw materials by weight: 10%-40% of a disperse dye filter cake, 2%-35% of a dispersing agent, 5%-20% of a dyeing assistant, 0.1%-0.5% of a surfactant and 20%-88% of a solvent. The waterless dyeing disperse dye color paste provided by the invention is small in particle size, and after waterless dyeing, textiles do not contain crackable carcinogenic aromatic amine azo dye, allergenic dye, forbidden aromatic amine or bioactive substance. The waterless dyeing disperse dye color paste disclosed bythe invention can be stored stably for 6-12 months, is beneficial to dye transportation and dyeing plant production management, and has a dyeing effect of high fixation rate after being applied to textiles.

Description

Technical field [0001] The invention relates to a class of liquid disperse dyes and a preparation method and application thereof, belonging to the field of dyeing and finishing. The liquid disperse dye is suitable for dyeing polyester and its blended fabrics, and is particularly suitable for anhydrous dyeing process. Background technique [0002] The dyeing and finishing industry is one of the industries with the largest water consumption. On average, it consumes about 60 to 80 tons of water per ton of fabric produced, which not only consumes precious water resources, but also causes a large amount of waste water discharge. Since the beginning of the 21st century, ecology and the environment have become issues of general concern to the world, and water for dyeing is particularly prominent. One example is the dyeing and finishing of polyester products with the largest output. According to statistics, since 2005, my country’s global exports of clothing have reached an average of 3...

AI Technical Summary

Problems solved by technology

Although people have made various efforts in the control of polyester dyeing pollution, on the one hand, it is to improve and innovate the processing technology to reduce the water pollution in the production process; Human and financial resources have also achieved certain results, but due to the inherent shortage of traditional polyester dyeing methods, it is difficult to fundamentally improve the water pollution situation.

[0003] The emergence of anhydrous dyeing process has changed this situation to a great extent, but general powder or liquid disperse dyes cannot achieve the ideal dyeing effect in anhydrous dyeing process, commercialized disperse dyes in anhydrous dyeing system, After dyeing, the fiber has some color lakes, the main reason is that commercialized disperse dyes add a variety of dispersants in the water-bath dyeing system, and the dispersants are insoluble in the anhydrous dyeing system and are easy to accumulate on the surface of the textile, resulting in more color point

In addition, the general liquid disperse dyes have insufficient stability and are prone to precipitation as the storage time increases

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