Yellow-to-orange disperse dye composition

Abstract

The invention provides a yellow-to-orange disperse dye composition which mainly comprises one or a plurality of components A the structures of which are shown as a formula (I), one or a plurality of components B the structures of which are shown as a formula (II) and one or a plurality of components C the structures of which are shown as a formula (III). Based on the components A, the components B and the components C, the mass percent of the components A is 0.1 to 99 percent, the mass percent of the components B is 0.1 to 99 percent, and the mass percent of the components C is 0 to 60 percent; when the dispersive yellow-to-orange dye is used for dyeing a hydrophobic fibre material, residual dyeing liquid is clear, and scums are little; especially, after high-temperature shaping, very high washing fastness still can be ensured; and the invention effectively solves the problem that the washing fastness of conventional dispersive yellow-to-orange dye is greatly lowered under high-temperature after finishing, and is very suitable for printing and dyeing middle-grade / high-grade fabrics, such as superfine-denier fabrics and blended fabrics of dacron / cotton, dacron / spandex and the like.

Description

(1) Technical field [0001] The invention relates to a yellow to orange disperse dye composition suitable for printing and dyeing hydrophobic fiber materials with high washing fastness. (2) Background technology [0002] In recent years, polyester fiber fabrics such as sportswear, casual clothes, automotive interior fabrics, etc. are dyed with disperse dyes to ensure that the finished product size is consistent and stable. Because the heat setting temperature is generally high, exceeding 140 ° C, the inside of the fiber The disperse dyes will undergo thermal migration in the opposite direction to that during dyeing, and part of the dyes will re-migrate to the surface of the fiber, resulting in a significant decrease in the washing fastness of the heat-set fabric after dyeing (generally only about 3 levels), and contaminate adjacent stickers. Lining or polluting the environment, and the existing washing fastness of disperse dyes are the data of polyester fabric dyed with dispe...

AI Technical Summary

Problems solved by technology

[0002] In recent years, polyester fiber fabrics such as sportswear, casual clothes, automotive interior fabrics, etc. are dyed with disperse dyes to ensure that the finished product size is consistent and stable. Because the heat setting temperature is generally high, exceeding 140 ° C, the inside of the fiber The disperse dyes will undergo thermal migration in the opposite direction to that during dyeing, and part of the dyes will re-migrate to the surface of the fiber, resulting in a significant decrease in the washing fastness of the heat-set fabric after dyeing (generally only about 3 levels), and contaminate adjacent stickers. Lining or polluting the environment, while the existing disperse dyes washing fastness is the data of polyester fabric dyed with disperse dyes after reduction cleaning but no heat setting treatment, which cannot reflect the heat migration resistance of disperse dyes

[0003] In addition, with the development of ultra-fine polyester fiber and the development of high-grade blended fabrics such as polyester / ammonia and polyester / cotton, the existing disperse yellow to orange dyes can no longer meet their dyeing needs during printing and dyeing. Other fibers are serious, causing the overall color fastness of the fabric to decrease, stains are not easy to remove, etc., and in view of the EU REACH regulations to further reform the requirements of disperse dyes for polyester fibers, from environmental and ecological considerations, it is necessary to develop a new type of environmentally friendly dyes

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