Disperse black and blue dye composition

Abstract

The invention discloses a disperse black and blue dye composition which basically comprises the following components in percentage by weight: 20-80% of component A, 15-40% of component B, 1-35% of component C, 0-10% of component D and 0-5% of component E, wherein the component A is one or more than one of compounds represented by formula (I); the component B is a compound represented by formula (II); the component C is one or more than one of compounds represented by formula (III); the component D is one or more than one of compounds represented by formula (IV); and the component E is one or more than one of compounds represented by formula (V). The disperse black and blue dye composition provided by the invention has small contamination to spandex, excellent compatibility and high dye uptake rate, various fastnesses such as sunlight fastness, rubbing fastness, sublimation fastness and the like of dyeing on terylene / spandex fabrics are excellent, and especially the washing fastness isextremely good.

Description

technical field [0001] The invention relates to a disperse dye composition, in particular to an economical high-fastness disperse black and blue dye composition suitable for printing and dyeing polyester-spandex blended fabrics. Background technique [0002] With the improvement of living standards, people began to pursue the comfort of clothing and the stability of shape and size, and naturally required fabrics to have appropriate elasticity. Polyester / spandex is more and more favored by people because of its excellent rebound performance, soft touch and comfortable wearing. Disperse dyes are mainly used for dyeing polyester / spandex elastic fabrics, but generally disperse dyes have heavy staining properties on spandex and are attached to the surface. Once washed, they are easy to fade, and they are not perfect in terms of color fullness and fastness. As expected. [0003] Traditional disperse black and blue dyes are mainly composed of C.I. Disperse Blue 291:1, C.I. Disper...

AI Technical Summary

Problems solved by technology

Disperse dyes are mainly used for dyeing polyester / spandex elastic fabrics, but generally disperse dyes have heavy staining properties on spandex and are attached to the surface. Once washed, they are easy to fade, and they are not perfect in terms of color fullness and fastness. satisfactory

[0003] Traditional disperse black and blue dyes are mainly composed of C.I. Disperse Blue 291:1, C.I. Disperse Violet 93, and Disperse Orange C.I.288. This composition is dyed on polyester fibers, with high dyeing rate, good dyeing performance and high fastness , but when dyed on the new polyester-spandex blended fiber, the staining of spandex is heavy and the fastness is not high, especially the washing fastness is poor, so research and development have less staining on spandex or can be used on spandex Economical disperse dyes with good dyeing fastness are currently the most important research and development topic in the dye industry

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