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A class of high-fixation rate phthalocyanine azo dichromate reactive dyes and its preparation method and application

A reactive dye and azo-based technology, applied in reactive dyes, azo dyes, dyeing methods, etc., can solve the problem of low color fixation rate

Active Publication Date: 2021-03-19
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a class of reactive dyes with high color-fixing rate phthalocyanine azo-based dichromophores and their preparation method and application. The reactive dyes solve the technical problem that the color-fixing rate of copper phthalocyanine reactive dyes is not high at present

Method used

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  • A class of high-fixation rate phthalocyanine azo dichromate reactive dyes and its preparation method and application
  • A class of high-fixation rate phthalocyanine azo dichromate reactive dyes and its preparation method and application
  • A class of high-fixation rate phthalocyanine azo dichromate reactive dyes and its preparation method and application

Examples

Experimental program
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Effect test

Embodiment 1

[0039] Synthesis of high fixation rate mixed color body reactive dyes with the following structure:

[0040]

[0041] (1) Preparation of copper phthalocyanine sulfonyl chloride: at room temperature, add 80 mL of chlorosulfonic acid to a three-necked flask equipped with a reflux condenser and a tail gas absorption device, add 15 g of copper phthalocyanine under stirring, and then heat up to 135 ° C for reaction 5h, then lower the temperature to 60°C, add 22mL of thionyl chloride to it, then raise the temperature to 100°C for 2h, then lower the temperature to below 30°C, slowly add the system to ice water while stirring, filter with suction, and use an appropriate amount of Wash with ice water to obtain 58 g of copper phthalocyaninesulfonyl chloride filter cake.

[0042] (2) Preparation of copper phthalocyanine turquoise blue base: the copper phthalocyanine sulfonyl chloride in step (1) was beaten for 1 h in an ice-water bath. Accurately weigh 5.04g of sodium 2,4-diaminobenz...

Embodiment 2

[0050] The synthesis process of the high fixation rate mixed color body reactive dye with the following structure:

[0051]

[0052] (1) Preparation of copper phthalocyanine sulfonyl chloride: at room temperature, add 80 mL of chlorosulfonic acid to a three-necked flask equipped with a reflux condenser and a tail gas absorption device, add 15 g of copper phthalocyanine under stirring, and then heat up to 135 ° C for reaction 5h, then lower the temperature to 60°C, add 22mL of thionyl chloride to it, raise the temperature to 100°C for 2h, then lower the temperature to below 30°C, slowly add the system to ice water while stirring, suction filter, filter the cake with an appropriate amount of ice Wash with water to obtain 58 g of copper phthalocyaninesulfonyl chloride filter cake.

[0053] (2) Preparation of copper phthalocyanine turquoise blue base: the copper phthalocyanine sulfonyl chloride in step (1) was beaten for 1 h in an ice-water bath. Accurately weigh 5.04g of 2,4-...

Embodiment 3

[0061] The synthesis process of the high fixation rate mixed color body reactive dye with the following structure:

[0062]

[0063] (1) Preparation of copper phthalocyanine sulfonyl chloride: at room temperature, add 80 mL of chlorosulfonic acid to a three-necked flask equipped with a reflux condenser and a tail gas absorption device, add 15 g of copper phthalocyanine under stirring, and then heat up to 135 ° C for reaction 5h, then lower the temperature to 60°C, add 22mL of thionyl chloride to it, raise the temperature to 100°C for 2h, then lower the temperature to below 30°C, slowly add the system to ice water while stirring, suction filter, filter the cake with an appropriate amount of ice Wash with water to obtain 58 g of copper phthalocyaninesulfonyl chloride filter cake.

[0064] (2) Preparation of copper phthalocyanine turquoise blue base: the copper phthalocyanine sulfonyl chloride in step (1) was beaten for 1 h in an ice-water bath. Accurately weigh 5.04g of 2,4-...

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Abstract

The invention relates to phthalocyanine-azo double-chromophore activated dye having a high fixation rate and a preparing method and application thereof. The method includes copper phthalocyanine chlorosulfonation to prepare a phthalocyanine turquoise blue base, a first time of condensation, a second time of condensation, diazotization and a coupling reaction to obtain the activated dye having a high fixation rate. The dye is suitable for pattern printing for cotton, artificial cotton, linen, regenerated fibers and textiles thereof, and has a high fixation rate, bright color, excellent improving performance, good washable fastness, good color fastness to rubbing and a good application prospect.

Description

technical field [0001] The invention belongs to the field of reactive dyes, and in particular relates to a class of reactive dyes with high fixation rate phthalocyanine azo-based dichromophores and a preparation method and application thereof. Background technique [0002] Since the advent of reactive dyes, it has become the most important dye category in cotton reactive dyes. It has bright color, complete chromatogram, low cost, and its development has always been in an important position. Reactive dye molecules are composed of water-soluble groups, dye precursors, linking groups, and active groups. During the application process, dye molecules will be hydrolyzed and lose the ability to react with fibers, reducing the utilization rate of dyes. At the same time, the discharged dye wastewater will cause ecological problems. Environmental protection issues also have certain harm to the human body. Therefore, it is of great significance to develop new reactive dyes with high c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09B62/10C09B67/06D06P1/382D06P3/66
CPCC09B62/10C09B67/0003D06P1/382D06P3/663
Inventor 侯爱芹谢孔良胡柳高爱芹
Owner DONGHUA UNIV
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