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Red reactive dyes containing fluorotriazine and preparation method and application thereof

A reactive dye and red technology, applied in the field of dyes, can solve the problems of insufficient color fixation rate, poor compatibility, and high chroma of dyeing residual liquid, and achieve high color fixation rate, good environmental benefits, and good reproducibility Effect

Inactive Publication Date: 2010-06-16
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. Higher chroma brings certain pressure to environmental protection

Method used

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  • Red reactive dyes containing fluorotriazine and preparation method and application thereof
  • Red reactive dyes containing fluorotriazine and preparation method and application thereof
  • Red reactive dyes containing fluorotriazine and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Embodiment 1 prepares the dyestuff, operates according to the following steps:

[0038] a, a condensation reaction

[0039] Put 1000 parts of bottom water in the dissolving pot, drop into 171 parts of 100% H acid for beating, and adjust pH=7.0 to material dissolution with 30% liquid caustic soda. Put 500 parts of bottom water and 500 parts of bottom ice into the condensation pot, put in 68 parts of cyanuric fluoride and beat for 30 minutes, and maintain T=0-5°C. Add the dissolved H-acid solution to the cyanuric fluoride solution, adjust the pH to 3.5-4.0 with baking soda dry powder, and use silicon plate chromatography to detect the end point after reacting for 2 hours. If the H-acid disappears and the end point is reached, a condensation liquid .

[0040] b. Secondary condensation reaction

[0041] Add 141 parts of 100% para-ester to the shrinkage liquid prepared in step a, raise the temperature to T=40°C, then adjust the pH=3.5-4.0 with baking soda dry powder, main...

Embodiment 2

[0049] Embodiment 2 prepares dyestuff, operates according to the following steps:

[0050] a, a condensation reaction

[0051] Put 1000 parts of bottom water in the dissolving pot, drop into 256 parts of 100% H acid for beating, adjust pH=7.0 to material dissolution with 30% liquid caustic soda. Put 800 parts of bottom water and 800 parts of bottom ice into the condensation pot, put in 101 parts of cyanuric fluoride and beat for 30 minutes, and maintain T=0-5°C. Add the dissolved H-acid solution to the cyanuric fluoride solution, adjust the pH to 3.5-4.0 with baking soda dry powder, and use silicon plate chromatography to detect the end point after reacting for 2 hours. If the H-acid disappears and the end point is reached, a condensation solution .

[0052] b. Secondary condensation reaction

[0053] Add 211 parts of 100% meta-ester to the shrinkage solution prepared in step a, raise the temperature to T=40°C, then use dry baking soda powder to adjust the pH=3.5-4.0, maint...

Embodiment 3

[0061] Embodiment 3 prepare dye, operate according to the following steps:

[0062] a, a condensation reaction

[0063] Put 1000 parts of bottom water in the dissolving pot, drop into 341 parts of 100% H acid for beating, and adjust pH=7.0 to material dissolution with 30% liquid caustic soda. Put 1000 parts of bottom water and 1000 parts of bottom ice into the condensation pot, put in 135 parts of cyanuric fluoride and beat for 30 minutes, and maintain T=0-5°C. Add the dissolved H-acid solution to the cyanuric fluoride solution, adjust the pH to 3.5-4.0 with baking soda dry powder, and use silicon plate chromatography to detect the end point after reacting for 2 hours. If the H-acid disappears and the end point is reached, a condensation solution .

[0064] b. Secondary condensation reaction

[0065] Add 281 parts of 100% para-ester to the shrinkage solution prepared in step a, raise the temperature to T=40°C, then use dry baking soda powder to adjust the pH=3.5-4.0, mainta...

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Abstract

The invention relates to a red reactive dyes containing fluorotriazine, which is characterized by having a structural general formula shown in the specification, wherein R1 and R2 are respectively one of formulas shown in the specification, wherein M refers to alkali metal, Na or K. The red reactive dyes containing fluorotriazine has the characteristics of high reactivity, high solubility, consumption rate and high fastness rate, has good dyeing levelness, diffusibility, compatibility and repeatability, has high fastness to chlorinated water and fastness to light, and is suitable for dyeing fibers, particularly cotton fibers.

Description

technical field [0001] The invention relates to the field of dyes, in particular to a red 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 dy...

Claims

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Application Information

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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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