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Black dye mixer and preparation method and application thereof

A technology of black dyes and mixtures, applied in the field of dyes, can solve problems such as natural environmental pollution, unsuitable environmental protection requirements, human and other biological hazards, etc.

Inactive Publication Date: 2007-09-19
佛山市焱基化工染料有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, among the reactive dyes used for dyeing and printing, the existing dyes similar to reactive black K-B and reactive K-B4RP have good dyeing firmness after dyeing and printing fiber materials. Fastness and good level dyeing, but the discharge of dyeing wastewater contains heavy metal elements such as chromium and cobalt, and heavy metal elements such as chromium and cobalt will cause pollution and damage to the natural environment, and have serious toxic effects on humans and other organisms. Therefore, although this kind of heavy metal complex dye has good dyeing fastness and good level dyeing property, it is not suitable for the environmental protection requirements of social development and human health.

Method used

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  • Black dye mixer and preparation method and application thereof
  • Black dye mixer and preparation method and application thereof
  • Black dye mixer and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] Embodiment 1: Raw material production

[0066] Dissolve 0.1mol aniline-2.5-disulfonic acid in water and beat for 30 minutes, cool down to 0-5°C with ice, add appropriate amount of hydrochloric acid and stir for 10 minutes, then add 30% sodium nitrite solution for diazotization reaction for 2 hours (keep T=0-5°C throughout the whole process, and the amount of hydrochloric acid and sodium nitrite should be sufficient), and the obtained diazonium salt carries out acidic coupling reaction with H acid under the conditions of T≤10°C and pH≤25 hour (acid couple), add 0.1mol cyanuric chloride to an appropriate amount of water / ice mixture and make a slurry for 45 minutes, then add 0.1mol meta-bis (PH=5.5-6.0) that has been fully dissolved to it for 1 hour Carry out the first condensation reaction, control T=5-10°C, PH=3.5-4.0, add ice to cool down to 0-5°C after reacting for 4 hours, add appropriate amount of hydrochloric acid and stir for 10 minutes, then add 30% sodium nitrite...

Embodiment 2

[0068] Embodiment 2: Raw material production

[0069] Dissolve 0.1mol aniline-2.5-disulfonic acid in water and beat for 30 minutes, cool down to 0-5°C with ice, add appropriate amount of hydrochloric acid and stir for 10 minutes, then add 30% sodium nitrite solution for diazotization reaction for 2 hours (keep T=0-5°C throughout the whole process, and the amount of hydrochloric acid and sodium nitrite should be sufficient), and the obtained diazonium salt carries out acidic coupling reaction with H acid under the conditions of T≤10°C and pH≤25 hour (acid couple), add 0.1mol cyanuric chloride to an appropriate amount of water / ice mixture and make a slurry for 45 minutes, then add 0.1mol meta-bis (PH=5.5-6.0) that has been fully dissolved to it for 1 hour Carry out the first condensation reaction, control T=5-10°C, PH=3.5-4.0, add ice to cool down to 0-5°C after reacting for 4 hours, add appropriate amount of hydrochloric acid and stir for 10 minutes, then add 30% sodium nitrite...

Embodiment 3

[0071] Embodiment 3: Raw material production

[0072] Dissolve 0.1mol aniline-2.4-disulfonic acid in water and beat for 30 minutes, cool down to 0-5°C with ice, add appropriate amount of hydrochloric acid and stir for 10 minutes, then add 30% sodium nitrite solution for diazotization reaction for 2 hours (keep T=0-5°C throughout the whole process, and the amount of hydrochloric acid and sodium nitrite should be sufficient), and the obtained diazonium salt is acidicly coupled with 0.1mol H acid under the conditions of T≤10°C and pH≤2 React for 5 hours (acid couple), add 0.1mol cyanuric chloride to an appropriate amount of water / ice mixture for beating for 45 minutes, and then fully dissolve 0.1mol metabis (PH=5.5-6.0) for 1 hour Add it for the first condensation reaction, control T=5-10°C, PH=3.5-4.0, add ice to cool down to 0-5°C after reacting for 4 hours, add appropriate amount of hydrochloric acid and stir for 10 minutes, then add 30% of Sodium nitrate solution was subject...

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Abstract

The invention provides a black dye mixture, which is mixed by (counted by weight quotient): dye shown by formula (1) of 50-80 quotient, dye shown by formula (2) of 9-30 quotient and dye shown by formula (3) of 4-20 quotient. The black dye mixture owns property of high level-dyeing property, high fixation yield and high jet black degree, and can combine with cotton, hemp, yarn, thread, hair and polyamide to form covalent bond. Moreover, the black dye contains no harmful arylamine and heavy metal element and does not decompose harmful matter to human body during using process.

Description

technical field [0001] The invention relates to a dye, especially a black dye mixture and its preparation method and application. Background technique [0002] At present, among the reactive dyes used for dyeing and printing, the existing dyes similar to reactive black K-B and reactive K-B4RP have good dyeing firmness after dyeing and printing fiber materials. Fastness and good level dyeing, but the discharge of dyeing wastewater contains heavy metal elements such as chromium and cobalt, and heavy metal elements such as chromium and cobalt will cause pollution and damage to the natural environment, and have serious toxic effects on humans and other organisms. Therefore, although this type of heavy metal complex dye has good dyeing fastness and good level dyeing property, it is not suitable for the environmental protection requirements of social development and human health. Contents of the invention [0003] The object of the present invention is to provide a kind of blac...

Claims

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Application Information

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IPC IPC(8): C09B67/36D06P1/02D06P3/60
Inventor 刘卫斌王华权严钦华沙振中李华龙尚爱国程翠云
Owner 佛山市焱基化工染料有限公司
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