Red reactive dye and preparation as well as use thereof

A reactive dye and dye technology, applied in the field of dyes, to achieve the effects of good wet fastness performance, good fastness performance, and good deepening performance

Active Publication Date: 2012-10-03
HUBEI COLOR ROOT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially in terms of the application performance of dyes, the requirements for today's reactive dyes must have sufficient directness and at the same time have good convenience for washing away unfixed dyes. In addition, dyes should also have good color fixing rate and high activity. Good fastness properties are also required, known dyes do not yet meet all performance requirements, there are still some deficiencies

Method used

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  • Red reactive dye and preparation as well as use thereof
  • Red reactive dye and preparation as well as use thereof
  • Red reactive dye and preparation as well as use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A. Add 25.2 parts of 2-amino-5-methylaminonaphthalenesulfonic acid to 300 parts of water for one hour, and then add 24 parts of 30% hydrochloric acid and stir for 30 minutes, add ice to cool to 0°C, and mix 7.2 parts of sub Sodium nitrate is added as a solution, and the diazotization reaction is completed in one hour after the addition is complete.

[0033] B. Then add 40.5 parts of 1 naphthol 8-acetamido-3.6 disulfonic acid. Make a solution with 200 parts of water and add it to A in 40 minutes. After adding baking soda, adjust the pH of the material to 5-6. React at T=5-10℃ and pH=5-6 for five hours to complete the coupling reaction. .

[0034] C. Add 28 parts of neutral solution of p-(β-vinylsulfone sulfate) aniline to 18.5 parts of cyanuric chloride ice water slurry, adjust pH=3.0 with baking soda, react for 4h, complete one condensation reaction.

[0035] D. Add the neutral solution of C to B, adjust the pH to 7-8 with sodium hydroxide solution, then slowly raise the te...

Embodiment 2-14

[0038] According to the preparation method of Example 1, according to the definition of each group in the preceding text, the following dyes in accordance with general formula (1) can also be obtained. These dyes can dye hydroxyl-containing or nitrogen-containing fibers into red shades and all have good overall fastness properties.

[0039]

[0040]

[0041]

Embodiment 15

[0043] A. Add 25.2 parts of 2-amino-5-methylaminonaphthalenesulfonic acid to 300 parts of water for one hour, and then add 24 parts of 30% hydrochloric acid and stir for 30 minutes, add ice to cool to 0°C, and mix 7.2 parts of sub Sodium nitrate is added as a solution, and the diazotization reaction is completed in one hour after the addition is complete.

[0044] B. Then add 40.5 parts of 1 naphthol 8-acetamido-3.6 disulfonic acid. Make a solution with 200 parts of water and add it to A in 40 minutes. After adding baking soda, adjust the pH of the material to 5-6. React at T=5-10℃ and pH=5-6 for five hours to complete the coupling reaction. .

[0045] C. Add 14 parts of cyanuric fluoride to B in 30 minutes under the conditions of T=0°C and pH=5-7, and complete the reaction for 30 minutes.

[0046] D. Add 2-sulfate group 2'-amino divinyl sulfone to C, adjust pH=6-8, then slowly raise the temperature to 20-30°C, react for 3h under this condition, and obtain the general formula ( 1)...

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PUM

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Abstract

The invention discloses a red reactive dye, which is characterized by being a dye which comforts to a general formula (1) shown in the specification. The dye is suitable for dyeing and printing a fiber material, such as a hydroxyl group-containing or nitrogen-containing fiber material, and is particularly suitable for dyeing a cotton fiber material; and a dyed product has good fastness property. When the dye is used for dyeing, less inorganic salt and alkali are consumed compared with the conventional dye. The dye belongs to an environment-friendly dye.

Description

Technical field [0001] The present invention relates to dyes, especially a red reactive dye and its preparation and use. Background technique [0002] Recently, the gradual popularization of the application of reactive dyes for dyeing has led to the improvement of the quality of dyed products, and at the same time put forward higher requirements on the quality of dyes and the dyeing process. Especially for the application performance of dyes, the requirements for today’s reactive dyes require sufficient directness and good convenience for washing off unfixed dyes. In addition, the dyes should also have good fixation rate and high activity. Good fastness properties are also required. Known dyes still cannot meet all performance requirements and still have some shortcomings. Summary of the invention [0003] The purpose of the present invention is to provide a red reactive dye and its preparation and use methods. To solve the above problems, the reactive dye of the present inventio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B62/51C09B62/085D06P1/38D06P3/66D06P3/02D06P3/85C09D11/02C09D11/16C09D11/03C09D11/17
Inventor 沙振中严钦华刘振国庄传勇祝超罗喜华尚爱国王会国周德友
Owner HUBEI COLOR ROOT TECH CO LTD
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