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Black dye mixer and preparation method and application thereof

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

Inactive Publication Date: 2009-12-09
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

[0061] Embodiment 1: Raw material production

[0062] 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

[0064] Embodiment 2: Raw material production

[0065] 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

[0067] Embodiment 3: Raw material production

[0068] 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

A black dye mixture, characterized in that: by weight, 50-80 parts meet the dyestuffs of general formula (1), 9-30 parts meet the dyestuffs of general formula (2) and 4-20 parts meet the general formula (3 ) dyes are mixed, (see the right formula) the black dye mixture of the present invention is a black dye mixture with high level dyeing property, high color fixation rate and high blackness, it can be mixed with cotton, hemp, yarn, silk, wool , Polyamide fibers form covalent bonds to form a strong dye-fiber system. In addition, the black dye of the present invention does not contain harmful aromatic amines and heavy metal elements, and will not decompose harmful substances to the human body during use, and is an environmentally friendly reactive dye with excellent comprehensive performance.

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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Patent Type & Authority Patents(China)
IPC IPC(8): C09B67/36D06P1/02D06P3/60
Inventor 罗俊龙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