Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Red anthraquinone dispersion dye

A disperse dye and red technology, applied in the direction of hydroxyanthraquinone dyes, etc., can solve the problems of dye post-processing troubles, increase dye cost, increase reaction steps, etc., and achieve the effect of novel structure, less reaction steps, and good sublimation fastness

Inactive Publication Date: 2005-03-23
DALIAN UNIV OF TECH
View PDF0 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this will inevitably increase the reaction steps, bring some troubles to the post-processing of the dye, and also increase the cost of the dye

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
  • Red anthraquinone dispersion dye
  • Red anthraquinone dispersion dye
  • Red anthraquinone dispersion dye

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] In a 100 ml three-necked flask, add 65 ml of dimethyl sulfoxide solvent, 2.28 g of bisphenol A and 2 g of sodium hydroxide, stir and heat the bisphenol A until it dissolves. Then, add 7.36 grams of 1-amino-2-bromo-4-hydroxyanthraquinone, raise the temperature to 90-150°C, and react for 6-10 hours. After the reaction, cool, filter, wash the product until neutral, dry, and prepare Obtain red anthraquinone disperse dye products.

[0024] The structure of the product was determined and confirmed by mass spectrometry (mass spectrometer: HP 1100LC-MSD) and nuclear magnetic resonance (nuclear magnetic resonance instrument: VarianINOVA400M NMR):

[0025] After the synthesized product is dissolved in chloroform, do APCl mass spectrum, its molecular ion peak is: e / m=702

[0026] H a

H b

H c

H d

H e

H f

H g

δ

(ppm)

6.46(2H)

8.37(2H)

7.77(4H)

8.33(2H)

7.11(2H)

7.36(2H)

1.76(2...

Embodiment 2

[0031] In a 100 ml three-neck flask, add 80 ml of mixed xylene solvent, 1.1 g of hydroquinone, and 2 g of sodium hydroxide, and stir at room temperature until the hydroquinone is dissolved. Then, add 7.50 grams of 1-amino-2-bromo-4-hydroxyanthraquinone, raise the temperature to 90-150°C, and react for 6-10 hours. After the reaction, cool, filter, wash with water until neutral, and dry to obtain Red anthraquinone disperse dye.

[0032] Use above-mentioned mass spectrometer and nuclear magnetic resonance instrument to measure, confirm that its structure is:

[0033]

Embodiment 3

[0035] In a 100 ml three-necked flask, add 2.50 g of bisphenol S, 70 ml of mixed dichlorobenzene solvent and 3 g of potassium hydroxide, and heat under stirring until the bisphenol S dissolves. Then, add 7.65 grams of 1-amino-2-bromo-4-hydroxyanthraquinone, raise the temperature to 90-150°C, and react for 6-10 hours. After the reaction, cool, filter, wash with water until neutral, and dry to obtain Red anthraquinone disperse dye.

[0036] Equally, measure with above-mentioned mass spectrometer and nuclear magnetic resonance instrument, confirm that its structure is:

[0037]

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 is a type of red dispersive dye containing two anthraquinone rings, using 1-amino-2-bromo-4- hydroxyl (or alkoxy) anthraquinone as raw material to make condensation reaction with diphenol A, quinol, diphenol S, etc, respectively, in a high-boiling point inert solvent so as to make it. It has not only simple synthetic process and fewer steps but also better sublimating fastness and higher molar extinction coefficient.

Description

technical field [0001] The invention belongs to a class of red disperse dyes with anthraquinone structure in fine chemical industry and a preparation method thereof. Background technique [0002] Red is a primary color in the dye spectrum. There are many structural types of red dyes. Among them, one of the main production varieties of anthraquinone red disperse dyes is disperse red 3B, which has great competitiveness in the dye market. However, this variety is an E-type disperse dye with low sublimation fastness and is not suitable for hot-melt dyeing. Simultaneously the heat setting treatment of fabric is also not ideal enough. [0003] The dye structure of Disperse Red 3B is: [0004] [0005] Some people have improved Disperse Red 3B. In 1976 European Patent DE 2,454,327, various substituents were introduced on the benzene ring of the 2-position phenoxy group of the anthraquinone ring to increase the molecular weight of the dye or polarity. However, this will inev...

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 Applications(China)
IPC IPC(8): C09B1/14
Inventor 李宗石董良军乔卫红
Owner DALIAN UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com