Composite high-light blue reactive dye and application thereof

Abstract

The invention discloses a composite high-light-fastness blue reactive dye, and belongs to the technical field of dyes. The invention relates to a composite high-light-fastness blue reactive dye, which is a mixture compounded by any two or more compounds in a formula (1), a formula (2), a formula (3) and a formula (4) according to any proportion. The compound blue reactive dye disclosed by the invention has high light fastness application performance, can be used for dyeing a plurality of fabrics with high light fastness, and is particularly suitable for the dyeing requirements of school uniform fabrics of primary and secondary school students. Meanwhile, the blue reactive dye has excellent compatibility, lifting property and alkali resistance, the conditions of easy dyeing defect and instability during dyeing are avoided, and other various fastness indexes are superior to those of conventional blue reactive dyes.

Description

technical field [0001] The invention relates to the technical field of dyes, and more particularly to a composite high solarization blue reactive dye. Background technique [0002] With the continuous development of cellulose fiber varieties and the continuous development of dyeing technology, when using reactive dyes to color cellulose fibers, higher and higher requirements are put forward for the application performance of reactive dyes. In recent years, a lot of review articles on reactive dyes have been published, not only involving the development of reactive dyes themselves, but also the application performance and process of reactive dyes, focusing on improving their application performance and environmental protection, among which the application performance pays special attention to light fastness. Many product standards in my country and the world textile industry regard the comprehensive performance of dyes as an important assessment index. my country has also spec...

AI Technical Summary

Problems solved by technology

[0003] After the existing single-color dyes color cellulose fibers, the comprehensive value of various performance indicators is difficult to achieve satisfactory results. For example, C.I. The advantage is that the light fastness is good, the light fastness grade is 6-7, and the shade is reddish; the disadvantage is that the alkali resistance is poor, and it is easy to dye flowers when dyeing. The sweat-light composite light fastness is average, only 3- level 4

C.I. Reactive Blue 19:2 is an anthraquinone-type monovinylsulfone-based active group. Its advantages when coloring cellulose fibers are good light fastness, light fastness grade 6-7, reddish light, and alkali resistance. Good performance; the disadvantage is that the lifting performance is poor, and the light fastness to sweat and light is average, only 3-4 grades

C.I. Reactive Blue 105 is a triphenyldioxazine-type bisvinylsulfone-based active group. Its advantages when coloring cellulose fibers are greenish and brilliant color, good alkali resistance, especially strong anti-oxidation and anti-reduction ability, and no color change. Less; the disadvantage is that the lifting performance is poor, the light fastness is average, the light fastness level is 4-5, and the sweat-light composite light fastness is poor, only 3 levels

C.I. Reactive Blue 187 is a triphenyldioxazine-type bis-nicotinic acid-based active group. Its advantages when coloring cellulose fibers are that the color is greenish and bright, and it can be dyed with neutral pH and stained nylon cloth, especially anti-oxidation and anti-oxidation. Strong reduction ability, less color change; the disadvantage is poor lifting performance, average light fastness, light fastness grade 4-5, sweat-light composite light fastness is poor, only 3 grades

C.I. Reactive Blue 224 is a triphenyldioxazine-type divinylsulfone-based active group. It has the advantages of good light fastness when coloring cellulose fibers, and the light fastness grade is 5-6. Good alkalinity and good lifting performance; the disadvantage is that the color change is obvious, and the light fastness to sweat and light is average, only grade 3-4

C.I. Reactive Blue 221 is a formazan-type monochloro-s-triazine and monovinylsulfone-based active group. It has the advantages of good light fastness when coloring cellulose fibers, and the light fastness grade is 6-7. The light fastness is good, reaching grade 4; the disadvantage is poor alkali resistance, poor lifting performance, greenish-dark shade, and not easy to dye deep, suitable for medium and light color dyeing

C.I. Reactive Blue 235 is a formazan-fluoro-s-triazine and monovinylsulfone-based active group. It has the advantages of good light fastness when coloring cellulose fibers, and the light fastness grade is 6-7. The light fastness is excellent, reaching 4-5 grades, and the improvement is good; the disadvantage is that the alkali resistance is poor, the shade is greenish and dark, and it is not easy to dye deep, suitable for medium and light color dyeing

[0004] In order to solve these problems of Yanlan, various studies have been carried out in many patent documents, but satisfactory results have not yet been obtained.

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