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Reactive black dye mixture

A technology of black dyes and mixtures, applied in organic dyes, dyeing methods, textiles and papermaking, etc., which can solve problems such as excessive dependence on color quantity, poor dyeing performance of dyes, and high application costs

Active Publication Date: 2013-08-07
吴江桃源染料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Currently on the market there is a reactive black dye mixture consisting of reactive black dye KN-B (C.I. Reactive Black B5) and reactive orange dye GR (C.I. Reactive Orange 82) Certain defects, such as excessive dependence of color yield on changes in process parameters in the dyeing operation, insufficient or uneven dye accumulation on cotton, and poor dyeing reproducibility, etc., which ultimately lead to poor dyeing performance and application of dyes higher cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Put 28.1 parts of 4-(β-hydroxyethyl sulfone) sulfate aniline into the reactor, add 100 parts of water and 50 parts of ice, and add 13 parts of industrial hydrochloric acid and 6.9 parts of sodium nitrite under high-speed stirring to fully react to obtain diazo salt; then add 17 parts of 1-amino-8-naphthol-3,6-disulfonic acid (H acid) to the diazonium salt reaction liquid, under the conditions of T=5-8℃, pH=0.5-2 carry out acidic coupling reaction at low temperature for 5 hours; finally add sodium bicarbonate solution at a temperature lower than 15°C to adjust pH=5-5.5, and continue the reaction for 2 hours to obtain reactive black dye (1) with structural formula (1).

[0039]

[0040] （1）

Embodiment 2

[0042] Put 28.1 parts of 4-(β-hydroxyethylsulfone)sulfate benzene and 31.8 parts of 2-chloro-4-(β-hydroxyethylsulfone)sulfate aniline into the reactor, add 200 parts of water and 100 parts of ice, and stir at high speed Next, add 28 parts of industrial hydrochloric acid and 13.8 parts of sodium nitrite to fully react to obtain diazonium salt; then add 1-amino-8-naphthol-3,6-bissulfonic acid (H acid ) 34 parts, carry out acidic coupling reaction for 5 hours under the conditions of T=5-8℃, pH=0.5-2; finally add sodium bicarbonate solution at a temperature lower than 15℃ to adjust pH=5-5.5, continue Reactive black dye (2) with structural formula (2) was obtained after reacting for 2 hours.

[0043]

[0044] （2）

Embodiment 3

[0046] Put 28.1 parts of 4-(β hydroxyethyl sulfone)sulfate benzene and 31.1 parts of 2-methoxy-4-(β hydroxyethyl sulfone) sulfate aniline into the reactor, add 200 parts of water and 100 parts of ice, in Under high-speed stirring, add 28 parts of industrial hydrochloric acid and 13.8 parts of sodium nitrite to fully react to obtain diazonium salt; then add 1-amino-8-naphthol-3,6-disulfonic acid ( H acid) 34 parts, carry out acidic coupling reaction for 5 hours under the conditions of T=5-8℃, pH=0.5-2; finally add sodium bicarbonate solution at a temperature lower than 15℃ to adjust pH=5-5.5 , continue to react for 2 hours to obtain the reactive black dye (3) with the structural formula (3).

[0047]

[0048] （3）

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Abstract

The invention relates to a reactive black dye mixture. The reactive black dye mixture comprises 65 to 50 percent of reactive black dye, 35 to 20 percent of reactive orange dye and 20 to 10 percent of aid. From the molecular structure angle, the reactive black dye mixture is obtained by mixing and complexing specific reactive black and orange dyes which contain vinyl sulfone reactive groups respectively in a certain proportion according to compatibility and similitude and subtractive color mixing principles; and through experiment, the fiber of the dye mixture is high in color yield, and the part, which is not colored, of the fiber is very easy to clean, so the dye mixture is good in levelling property and high in dying repeatability, and color fastness to washing, light, acid and base, and rubbing, and the like, and can adapt to requirements of various dyeing processes.

Description

Technical field [0001] The invention is a activated dye field, which involves a kind of active black dye mixture. Background technique [0002] At present, the active black dye mixture composed of active black dye KN-B (C.I.ReaCTIVE BLACK B5) and active orange dye GR (C.I.ReaCTIVE Orange) has certain defects.The changes of the parameters, the accumulation of dyes on the cotton is not sufficient or uneven, and the reproducibility of dyeing is poor. These eventually lead to poor dye dye performance and high application costs. Invention content [0003] The technical problem to be solved by the present invention is to overcome the lack of existing technology and provide an improved active black dye mixture. [0004] In order to solve the above technical problems, the present invention takes the following technical solutions: [0005] A kind of active black dye mixture, including 50%~ 65%active black dye, 20%~ 35%activated orange dye, and 10%~ 20%additives; [0006] Among them, the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09B67/22C09B67/24D06P1/384
Inventor 郭正祥薛伟陆海英陆再宏庄永祥
Owner 吴江桃源染料有限公司
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