Strong alkali-resistant medium-temperature disperse violet dye, its compound mixture and its preparation method

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 energy consumption, etc., to reduce energy consumption and The effect of pollution, excellent fastness and simple production process

Active Publication Date: 2018-02-27
烟台澳土复合材料有限公司
View PDF4 Cites 0 Cited by
  • 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Strong alkali-resistant medium-temperature disperse violet dye, its compound mixture and its preparation method
  • Strong alkali-resistant medium-temperature disperse violet dye, its compound mixture and its preparation method

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...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a strong alkali-resistant medium-temperature disperse violet dye, a compound mixture thereof and a preparation method thereof. This alkali-resistant medium-temperature disperse violet dye is made by diazotizing 2-bromo-4,6-dinitroaniline or 2-chloro-4,6-dinitroaniline with nitrosyl sulfuric acid, and then combined with m-ortho Position substituted-N-substituted aniline emulsion carries out the structure that coupling reaction makes is the compound shown in structural formula (I). The strong alkali-resistant medium-temperature disperse violet dye involved in the present invention has a green production process and can be applied to the medium-temperature dyeing of polyester, nylon, spandex and other hydrophobic fibers and their blended fabrics. It has bright luster and can replace disperse violet 28, Disperse Violet 31 and Disperse Violet 93; by compounding with azo-type disperse dyes and anthraquinone-type disperse dyes, they can adjust the color shade and synergize the effect of dyes, and meet the needs of different application conditions. The dye of the invention has high liftability, excellent fastness to water washing, sun exposure, sublimation, etc., excellent comprehensive performance, and has broad application prospects.

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap