Dark red reactive dye and preparation method thereof

A technology of reactive dyes and crimson, applied in reactive dyes, dyeing methods, azo dyes, etc., can solve problems such as rubbing fastness, poor washing fastness, difficulty in improving color and dyeing depth, and difficult to meet, and achieve Improve rubbing fastness, excellent color synchronization, and improve lifting effect

Inactive Publication Date: 2017-05-10
ZHEJIANG YIDE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the reactive crimson dye with J-acid structure is better than the reactive red dye with H-acid structure in promotion and deep dyeing, but the reactive red dye with J-acid structure has less water-soluble groups, and its rubbing fastness, washing fastness, etc. The intensity is much worse than the reactive red dye with H acid structure
Especially when making some dark deep reds, it is difficult to have good lifting properties and dyeing depth, but also have good rubbing fastness and washing fastness, so it is often difficult to meet customers' requirements for these properties. Require

Method used

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  • Dark red reactive dye and preparation method thereof
  • Dark red reactive dye and preparation method thereof
  • Dark red reactive dye and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] A kind of deep red reactive dye, is made up of the compound of simple formula (1-1) structure:

[0060]

[0061] (1-1) Its synthetic method step of the compound of structure is as follows:

[0062] 1. Condensation reaction: add 100g of bottom water to the beaker, control the temperature at 25-45°C, add 20g of sodium bisulfite and stir until completely dissolved, then add 25g of J acid, and adjust the pH to 5.0-6.0 with 10g of baking soda , slowly add 9g of aniline solution, after the addition is completed, the measured pH is 5.0-6.0, then the temperature is raised to 100-120°C, and the pH value is kept at a temperature, and the stirring reaction is continued for 20-30 hours. The condensation reaction formula is shown in formula (a):

[0063]

[0064] 2. Diazo reaction: Add 50g of sulfonated para-ester into 100g of water and 50g of crushed ice solution for beating for 1 hour. Then add 10g of hydrochloric acid (30%), and after stirring for 1 minute, add 23g of the...

Embodiment 2

[0073] A kind of deep red reactive dye, is made up of the compound of simple formula (1-2) structure:

[0074]

[0075] (1-2) Its synthetic method step of the compound of structure is as follows:

[0076] 1. Condensation reaction: add 100g of bottom water to the beaker, control the temperature at 25-45°C, add 20g of sodium bisulfite and stir until completely dissolved, then add 25g of J acid, and adjust the pH to 5.0-6.0 with 10g of baking soda , slowly add 9g of aniline solution, after the addition is completed, the measured pH is 5.0-6.0, then the temperature is raised to 100-120°C, and the pH value is kept at a temperature, and the stirring reaction is continued for 20-30 hours. The condensation reaction formula is shown in formula (a):

[0077]

[0078] 2. Diazo reaction: Add 50g of sulfonated para-ester into 100g of water and 50g of crushed ice solution for beating for 1 hour. Then add 10g of hydrochloric acid (30%), and after stirring for 1 minute, add 23g of the...

Embodiment 3

[0087] A kind of deep red reactive dye, is made up of the compound of simple formula (1-3) structure:

[0088]

[0089] (1-3) Its synthetic method step of the compound of structure is as follows:

[0090] 1. Condensation reaction: add 100g of bottom water to the beaker, control the temperature at 25-45°C, add 20g of sodium bisulfite and stir until completely dissolved, then add 25g of J acid, and adjust the pH to 5.0-6.0 with 10g of baking soda , slowly add 9g of aniline solution, after the addition is completed, the measured pH is 5.0-6.0, then the temperature is raised to 100-120°C, and the pH value is kept at a temperature, and the stirring reaction is continued for 20-30 hours. The condensation reaction formula is shown in formula (a):

[0091]

[0092] 2. Diazo reaction: Add 50g of sulfonated para-ester into 100g of water and 50g of crushed ice solution for beating for 1 hour. Then add 10g of hydrochloric acid (30%), and after stirring for 1 minute, add 23g of the...

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Abstract

The invention discloses dark red reactive dye and a preparation method thereof. The dark red reactive dye is one material selected from general formulas of the formula (I) or is a mixture obtained through compounding two or more structures selected from the general formulas of the formula (I) according to any proportion. One material shown by the formula (I) is selected from any one of materials of the following structure general formulas or is a mixture of two or more materials of the structural general formulas, wherein R1, R2, R3 and R4 in the formula (I) respectively and independently represent -H, -CH3, -OCH3 or -SO3M; Y1 and Y2 respectively and independently represent -CH=CH2 or -C2H4OSO3M; M represents hydrogen or alkali metal. The dark red reactive dye has the advantages that the lifting performance is good; the friction firmness, the water washing firmness, the light fastness and the heat stability are high. The formula (I) is shown as the accompanying drawing.

Description

technical field [0001] The invention belongs to the field of reactive dyes in new material technology, in particular to a deep 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 including the application performance and process of reactive dyes, focusing on improving their application performance and environmental protection. [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. Among them, the reactive crimson dye with J-acid structure is better than the reactive red dye with H-acid stru...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B67/24C09B67/22C09B62/513D06P1/384D06P3/66
CPCC09B67/0072C09B62/513C09B67/0059D06P1/384D06P3/66
Inventor 孟胜锋傅卫红秦杰峰罗章强杨军张志伟
Owner ZHEJIANG YIDE CHEM
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