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High-solarization red reactive dye and preparation method thereof

A reactive dye and red technology, applied in the direction of reactive dyes, azo dyes, organic dyes, etc., can solve the problems of poor light fastness and difficulty in meeting customer light fastness performance requirements, to improve rubbing fastness, Excellent color synchronization and high level dyeing effect

Inactive Publication Date: 2020-11-13
ZHEJIANG YIDE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The general red reactive dyes use H acid and J acid as coupling components to combine with various aromatic amine diazo components to form a color matrix. Most of the red reactive dyes have relatively poor light fastness. Generally, the light fastness is only 2-3 grades, so it is often difficult to meet the customer's requirements for light fastness performance

Method used

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  • High-solarization red reactive dye and preparation method thereof
  • High-solarization red reactive dye and preparation method thereof
  • High-solarization red reactive dye and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] A kind of high solarization red reactive dye, is made up of the compound of simple formula (1-1) structure:

[0063]

[0064] (1-1) Its synthetic method step of the compound of structure is as follows:

[0065] 1. Diazo reaction: add ice water 100g in a beaker, add 2-aminophenol-4-sulfonic acid of 25g, beat for 1 hour, then add 12g hydrochloric acid (30%), slowly add dropwise 28g sodium nitrite solution (30 %), carry out the diazonium reaction, control the temperature at 0-20° C., and control the pH value at 0.5-1.5, and make the starch potassium iodide test paper microscopically blue, and the Congo high sun red test paper microscopically blue. After the sodium nitrite solution is added dropwise, keep the temperature at 8-10° C., control the pH value at 0.5-1.5, stir and react for 30 minutes, and then use 0.5 g of sulfamic acid to balance the excess sodium nitrite. The diazonium reaction formula is shown in formula (a):

[0066]

[0067] 2. Coupling reaction: Ad...

Embodiment 2

[0076] A kind of high solarization red reactive dye, is made up of the compound of simple formula (1-6) structure:

[0077]

[0078] (1-6) Its synthetic method step of the compound of structure is as follows:

[0079] 1. Diazo reaction: add ice water 100g in a beaker, add 2-aminophenol-5-sulfonic acid of 25g, beat for 1 hour, then add 12g hydrochloric acid (30%), slowly add dropwise 28g sodium nitrite solution (30 %), carry out the diazonium reaction, control the temperature at 0-20° C., and control the pH value at 0.5-1.5, and make the starch potassium iodide test paper microscopically blue, and the Congo high sun red test paper microscopically blue. After the sodium nitrite solution is added dropwise, keep the temperature at 8-10° C., control the pH value at 0.5-1.5, stir and react for 30 minutes, and then use 0.5 g of sulfamic acid to balance the excess sodium nitrite. The diazonium reaction formula is shown in formula (a):

[0080]

[0081] 2. Coupling reaction: Ad...

Embodiment 3

[0090] A kind of high solarization red reactive dye, is made up of the compound of simple formula (1-12) structure:

[0091]

[0092] (1-12) Its synthetic method step of the compound of structure is as follows:

[0093] 1. Diazo reaction: add ice water 100g in a beaker, add 2-aminophenol-4-sulfonic acid of 25g, beat for 1 hour, then add 12g hydrochloric acid (30%), slowly add dropwise 28g sodium nitrite solution (30 %), carry out the diazonium reaction, control the temperature at 0-20° C., and control the pH value at 0.5-1.5, and make the starch potassium iodide test paper microscopically blue, and the Congo high sun red test paper microscopically blue. After the sodium nitrite solution is added dropwise, keep the temperature at 8-10° C., control the pH value at 0.5-1.5, stir and react for 30 minutes, and then use 0.5 g of sulfamic acid to balance the excess sodium nitrite. The diazonium reaction formula is shown in formula (a):

[0094]

[0095] 2. Coupling reaction: ...

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Abstract

The invention discloses a high-solarization red reactive dye and a preparation method thereof, and belongs to the field of reactive dyes in a new material technology. The high-solarization red reactive dye is selected from one or a mixture formed by compounding more than two structures in a general formula (1) according to any proportion, one of the compounds shown in the formula (1) is selected from any one or a mixture of more than two of the following structural general formulas, wherein in the formula (1), R1 represents-SO3M; R2 represents-H,-CH < 3 > or-CH < 2 > CH < 3 >; R3 represents-H,-CH3,-CH2CH3,-SO3M,-SO2CH = CH2 or-SO2C2H4OSO3M; M represents-H,-Na,-K or-Li; X represents Cl or F. The high-solarization red reactive dye has the advantages of high light fastness and heat-resistantstability, and also has good rubbing fastness and washing fastness.

Description

technical field [0001] The invention belongs to the field of reactive dyes in new material technology, and in particular relates to a high solar red reactive dye and a preparation method thereof. Background technique [0002] Reactive dyes are currently taking more and more market share, and people are paying more and more attention to their research. The research on reactive dyes began in 1956, and it has been half a century. In recent years, many review articles on reactive dyes have been published, not only involving the development of reactive dyes themselves, but also the application performance and process of reactive dyes. Many product standards in the textile industry in my country and the world regard light fastness as an important assessment index. Under the background of new requirements and standards for textile light fastness at home and abroad, we must develop high-quality high light fastness Dyes are used in conjunction with textiles. [0003] The general red...

Claims

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Application Information

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IPC IPC(8): C09B62/515C09B62/095C09B67/24C09B67/36C09B67/22
CPCC09B62/095C09B62/515C09B67/0054C09B67/0072C09B67/0079
Inventor 卢林德蒋志平孟胜锋
Owner ZHEJIANG YIDE CHEM
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