Strong-alkali-resistant moderate-temperature disperse violet dye as well as compound mixture and preparation method thereof

A technology of disperse dyes and disperse violet, applied in azo dyes, organic dyes, monoazo dyes, etc., can solve the problems of high pollution of dyeing waste liquid, non-compliance with energy saving and emission reduction, high cost, and reduce energy consumption and pollution. , The effect of excellent fastness and high improvement

Active Publication Date: 2016-11-16
烟台澳土复合材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional disperse violet dye preparation and use process has high pollution, high energy consumption, and high cost. It does not conform to the development concept of energy saving, emission reduction, and green environmental protection. Therefore, the research on a cost-saving, pollution-reducing, and alkali-resistant disperse dye has become Problems to be solved

Method used

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  • Strong-alkali-resistant moderate-temperature disperse violet dye as well as compound mixture and preparation method thereof
  • Strong-alkali-resistant moderate-temperature disperse violet dye as well as compound mixture and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Add 44g of concentrated sulfuric acid with a mass concentration of 90-98% in the reaction three-necked flask, add 17g of 2-bromo-4,6-dinitroaniline under stirring, maintain the temperature at 45-50°C, and keep it warm for 1.0 hours to make 2-bromo-4, Dissolve all 6-dinitroaniline until clear; add ice to cool down to 24°C, start to drop 21.5g of nitrosylsulfuric acid, and use ice to ensure that the temperature of the material in the reactor is maintained at 15-20°C during the dropwise addition; use 1.5- After adding nitrosyl sulfuric acid in 2.0 hours, keep warm for another 3 hours, and the temperature is still controlled at 15-20°C; before the end of the diazonium reaction, do an end point test; after the test is passed, it will be a diazonium solution, ready to discharge.

[0023] While waiting for the diazo insulation reaction, use a 1000mL three-necked bottle for coupling, and prepare emulsifier OP-10 into a solution with a mass concentration of 10% for later use. Ad...

Embodiment 2

[0026] Add 40g of concentrated sulfuric acid with a mass concentration of 90-98% to the reaction three-necked flask, add 10g of 2-chloro-4,6-dinitroaniline under stirring, maintain the temperature at 45-50°C, and keep it warm for 1.0 hours to make 2-chloro-4, 6-Dinitroaniline was completely dissolved until clear. Add ice to cool down to 24°C, start to add 20 g of nitrosyl sulfuric acid dropwise, and use ice to ensure that the temperature of the material in the reactor is maintained at 10-15°C during the dropwise addition. It takes 1.5-2.0 hours to finish adding nitrosyl sulfuric acid, and then keep it warm for 5 hours, and the temperature is still controlled at 10-15°C. Before the end of the diazonium reaction, do the end point detection. After passing the test, it is diazo liquid, ready to discharge.

[0027] While waiting for the diazo insulation reaction, use a 1000mL three-necked bottle for coupling, and prepare emulsifier OP-10 into a solution with a mass concentration ...

Embodiment 3

[0030] Add 50g of concentrated sulfuric acid with a mass concentration of 90-98% in the reaction three-necked flask, add 18g of 2-bromo-4,6-dinitroaniline under stirring, maintain the temperature at 45-50°C, and keep it warm for 1.0 hours to make 2-bromo-4, 6-Dinitroaniline was completely dissolved until clear. Add ice to cool down to 24°C, and start to add 25 g of nitrosylsulfuric acid dropwise. It takes 1.5-2.0 hours to finish adding the nitrosyl sulfuric acid, and then keep the temperature for 4 hours, and the temperature is still controlled at 15-20°C. Before the end of the diazonium reaction, do the end point detection. After passing the test, it is diazo liquid, ready to discharge.

[0031]While waiting for the diazo insulation reaction, use a 1000mL three-necked bottle for coupling, and prepare emulsifier OP-10 into a solution with a mass concentration of 10% for later use. Add 240g of water, 10g of emulsifier OP-10 solution with a mass concentration of 10%, and 0.5g...

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Abstract

The invention discloses a strong-alkali-resistant moderate-temperature disperse violet dye as well as a compound mixture and a preparation method thereof. The strong-alkali-resistant moderate-temperature disperse violet dye is a compound of which the structure is as shown in a structural formula (I), and the compound is prepared in the way that 2-bromo-4,6-dinitroaniline or 2-chloro-4,6-dinitroaniline is diazotized by use of nitrosyl sulfuric acid, and the diazotized product is subjected to coupling reaction with m-substituted and o-substituted-N-aniline emulsion. The strong-alkali-resistant moderate-temperature disperse violet dye is environment-friendly in production process, can be applied to moderate-temperature dyeing of such hydrophobic fibers as polyester, nylon and spandex and blended fabrics of the hydrophobic fibers, is bright-colored, can replace disperse violet 28, disperse violet 31 and disperse violet 93, and can be compounded with azo-type disperse dyes and anthraquinone disperse dyes to achieve the functions of adjusting color tone and increasing effect so as to meet the demands of different application conditions. The strong-alkali-resistant moderate-temperature disperse violet dye is high in promotion performance, has favorable fastness in water washing, insolation, sublimation and the like, is excellent in comprehensive performance and has a wide application prospect.

Description

Technical field: [0001] The invention relates to a strong alkali-resistant medium-temperature disperse violet dye, a compound mixture thereof and a preparation method thereof, belonging to the technical field of new materials. Background technique: [0002] Disperse dyes are a class of non-ionic dyes with low water solubility. They were first used in the dyeing of acetate fibers and are called acetate dyes. With the development of synthetic fibers, nylon and polyester have appeared one after another, especially polyester, because of its high alignment, less fiber voids, and strong hydrophobicity, it is necessary to expand the fiber with a carrier or under high temperature and thermal melting, so that the dye can enter Fiber and dyed. Therefore, dyes need to have better hydrophobicity, certain dispersibility and resistance to sublimation, etc. Disperse dyes have small molecules and no water-soluble groups in their structure. They can be dyed by uniformly dispersing in the dy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B29/085C09B67/22
CPCC09B29/08C09B67/0046
Inventor 邓亚军邢国秀刘诗丽
Owner 烟台澳土复合材料有限公司
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