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Yellow fluorine-containing triazine reactive dye and preparation method and application thereof

A technology of reactive dyes and production methods, which is applied in the field of yellow fluorine-containing triazine reactive dyes and its preparation, can solve the problems of poor compatibility, high chroma of dyeing residual liquid, and insufficient color fixation rate, and achieve good environmental benefits , high color fixation rate and good reproducibility

Inactive Publication Date: 2010-07-28
HUBEI HUALI DYESTUFF INDAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is still a shortcoming in the dyeing process of the composite dual-reactive group dye composed of these two types of active groups: the compatibility of the two active groups of chlorotriazine and vinyl sulfone is not very good, resulting in insufficient color fixation rate and low dyeing residue. The chroma is high, the utilization rate is not high, and it also brings a certain pressure to environmental protection

Method used

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  • Yellow fluorine-containing triazine reactive dye and preparation method and application thereof
  • Yellow fluorine-containing triazine reactive dye and preparation method and application thereof
  • Yellow fluorine-containing triazine reactive dye and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Embodiment 1 prepares dyestuff, operates according to the following steps:

[0041] a, diazotization reaction

[0042] Put bottom water and bottom ice in the diazonium pot, drop in 383 parts of the compound of formula (2) and 91 parts of hydrochloric acid, and beat for 35 minutes. After making 70 parts of sodium nitrite into a 30% aqueous solution, add it into the solution of the compound of formula (2), maintain T=2.5°C, and use sulfamic acid to eliminate excess sodium nitrite after reacting for 2 hours. When the starch potassium iodide test paper is colorless, the Congo red test paper is blue, and the end point is reached, the diazo solution is obtained.

[0043] b. Coupling reaction

[0044] Put 151 parts of the dry powder of the compound of formula (3) into the diazonium solution prepared in step a, adjust pH=6.3 with 20% soda water after reacting for 35 minutes, maintain T=10°C, and reach the end point after reacting for 4.5 hours to obtain the coupling liquid. ...

Embodiment 2

[0052] Embodiment 2 prepares dyestuff, operates according to the following steps:

[0053] a, diazotization reaction

[0054] Put bottom water and bottom ice in the diazo pot, drop in 479 parts of the compound of formula (2) and 114 parts of hydrochloric acid, and beat for 40 minutes. After making 88 parts of sodium nitrite into a 30% aqueous solution, add it into the solution of the compound of formula (2), maintain T=1°C, and use sulfamic acid to eliminate excess sodium nitrite after reacting for 2 hours. When the starch potassium iodide test paper is colorless, the Congo red test paper is blue, and the end point is reached, the diazo solution is obtained.

[0055] b. Coupling reaction

[0056] Put 189 parts of dry powder of the compound of formula (3) into the diazonium solution prepared in step a, react for 40 minutes, adjust pH=6.5 with 20% soda water, keep T=8°C for 5 hours, and then reach the end point to obtain the coupling solution .

[0057] c, a condensation rea...

Embodiment 3

[0064] Embodiment 3 prepares dyestuff, operates according to the following steps:

[0065] a, diazotization reaction

[0066] Put bottom water and bottom ice in the diazonium pot, drop in 575 parts of the compound of formula (2) and 137 parts of hydrochloric acid, and beat for 35 minutes. After making 106 parts of sodium nitrite into a 30% aqueous solution, add it into the solution of the compound of formula (2), maintain T=5°C, and use sulfamic acid to eliminate excess sodium nitrite after reacting for 2 hours. When the starch potassium iodide test paper is colorless, the Congo red test paper is blue, and the end point is reached, the diazo solution is obtained.

[0067] b. Coupling reaction

[0068] Put 227 parts of the dry powder of the compound of formula (3) into the diazo solution prepared in step a, react for 30 minutes, adjust the pH to 6.3 with 20% soda water, keep T=15°C for 4.5 hours, and then reach the end point to obtain the coupling solution .

[0069] c, a c...

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Abstract

The invention discloses a yellow fluorine-containing triazine reactive dye and a preparation method and an application thereof. The dye is characterized by comprising the following general formula, wherein R1 is one of the following components, R2 is a hydrogen atom or C1-C2 alkyl, and M is alkali metal which represents Na and K. The yellow fluorine-containing triazine reactive dye of the invention has the characteristics of high reactivity, high solubility, high exhausting ratio, high fixation ratio, favorable levelling property, diffusivity, compatibility and repeatability as well as high fastness to chlorinated water and fastness to light and is especially suitable for dying cotton fibre.

Description

technical field [0001] The invention relates to the field of dyes, in particular to a yellow fluorine-containing triazine reactive dye and its preparation method and application. Background technique [0002] At present, reactive dyes have become the main dyes for cellulose fiber printing and dyeing, and their output is second only to disperse dyes. However, reactive dyes have disadvantages such as low color fixation rate, high salt content in printing and dyeing wastewater, and darker chroma. Improving the fixation rate of reactive dyes can not only increase the utilization rate of dyes and reduce the cost of printing and dyeing, but also reduce the content of dyes in dyeing wastewater, reduce the chroma and COD of wastewater, which is of great significance to environmental protection. Chlorotriazine and vinyl sulfone reactive dyes and their composite dual reactive dyes are particularly important in the market now, and their output occupies the vast majority of the reactive...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B62/085D06P1/382D06P3/66
Inventor 杨志祥艾良军崔孟元李华龙姜梅玲
Owner HUBEI HUALI DYESTUFF INDAL
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