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

Cyano-containing azo disperse dye

A technology of disperse dyes and azo, applied in the preparation of azo dyes, azo dyes, organic dyes, etc., can solve the problem of difficult to obtain dark color, and achieve excellent moisture resistance, good temperature dependence, and excellent sublimation fastness. Effect

Active Publication Date: 2014-07-02
JIANGSU ZHIJIANG CHEM
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this disperse dye is used for dyeing microfiber, and it is difficult to obtain a deep color especially when dyeing black

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
  • Cyano-containing azo disperse dye
  • Cyano-containing azo disperse dye
  • Cyano-containing azo disperse dye

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Add 55 milliliters of sulfuric acid in the three-necked flask, dropwise add 13 grams (100%) of nitrosyl sulfuric acid, add 2-bromo-3-chloro-4,6-dinitroaniline 29.65 grams at room temperature, stir and react for 4 hours, After the diazonium reaction was completed, it was added dropwise to the mixture consisting of 10 milliliters of sulfuric acid, 500 grams of ice water and 25 grams of compounds shown in formula (II-1),

[0025] Formula (II-1)

[0026] After the addition, continue to react for 1 hour, add 500 ml of water, raise to 50°C and keep warm for 1 hour, filter with suction, wash with hot water, dry, and wait for cyanation.

[0027] Add 100 ml of DMF, 10.8 g of cuprous cyanide, and 55 g of the drying dye mentioned above into a three-necked flask, and heat up to 100°C for 2 hours. After TLC monitoring reaches the end of the reaction, cool down to 30°C and add 50 g of ice, and the cyanide product precipitates , filter, wash with water, obtain the azo dyes containi...

Embodiment 2

[0031] Add 50 milliliters of sulfuric acid in the three-necked flask, dropwise add 13 grams (100%) of nitrosyl sulfuric acid, add 2-bromo-3-chloro-4,6-dinitroaniline 29.65 grams at room temperature, stir and react for 4 hours, After the diazonium reaction was completed, it was added dropwise to the mixture consisting of 10 milliliters of sulfuric acid, 500 grams of ice water and 19 grams of compounds shown in formula (II-2),

[0032] Formula (II-2)

[0033] After the addition, continue to react for 1 hour, rise to 60°C and keep warm for 1 hour, filter with suction, wash with water, dry, and wait for cyanation.

[0034] Add 100 ml of DMF, 10.8 g of cuprous cyanide, and 49 g of the above drying dye to a three-necked flask, and heat up to 80°C for 2 hours. After TLC monitoring reaches the end of the reaction, cool down to 20-30°C, add 60 g of ice, cyanide The compounded product separates out, filters, washes, obtains the azo dye containing cyanoaniline as shown in formula (I-h...

Embodiment 3

[0038] The compound shown in (II-2) in the replacement embodiment 2 is replaced by the compound shown in formula (II-3), and other methods are with embodiment 2,

[0039] Formula (II-3)

[0040] Obtain the azo dyes containing cyanoaniline shown in formula (I-i):

[0041] Formula (I-i)

[0042] The polyester and spandex blended fibers are dyed to obtain purple dyed products with excellent fastness properties.

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 cyano-containing azo disperse dye, and a preparation method and application thereof. The cyano-containing azo disperse dye is disclosed as Formula (I), wherein the groups are defined in the specification. The cyano-containing azo compound dye disclosed by the invention is used for dyeing and printing polyester and blend fabrics, and has excellent washing resistance, friction resistance, light resistance and fastness to sublimation.

Description

A technical field [0001] The invention relates to an azo-type disperse dye containing a cyano group, a preparation method and an application thereof, and belongs to the technical field of chemical material preparation. Two background technology [0002] The introduction of cyano group into the diazo component of azo dyes can improve the performance of disperse dyes for a long time, such as C.I disperse blue 165:1 (W-BLS). However, this disperse dye is used for dyeing microfibers, and it is difficult to obtain deep colors especially when dyeing black. Introducing a halogen at the 5-position of the diazo component can greatly improve the lifting power of the dye, and at the same time, it has very good washing fastness. Three invention content [0003] The object of the present invention is to provide a kind of azo compound containing cyano group which has excellent deep color dyeing performance, light fastness, sublimation fastness and washing fastness, its preparation meth...

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): C09B43/40C09B67/22C09B67/38D06P1/18D06P1/19D06P3/54D06P3/85
Inventor 陆建焕谢毅郝海松方东
Owner JIANGSU ZHIJIANG CHEM
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