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

A kind of reactive yellow dye for inkjet printing and its preparation method and application

A reactive yellow and dye technology, applied in reactive dyes, dyeing methods, organic dyes, etc., can solve the problems that the solubility cannot meet the requirements of inkjet printing, the actual utilization rate is not high, and the dyeing water consumption is high, and the drying method can be optimized. , Reduce the side reaction of hydrolysis, good level dyeing effect

Active Publication Date: 2021-06-01
TAIXING JINYUN DYESTUFF
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the solubility of common reactive dyes in the market cannot meet the requirements of inkjet printing. In addition, the actual utilization rate in the dyeing process is not high, and a large part is hydrolyzed; in addition, in the traditional medium and high temperature dyeing, the dyeing water consumption is very high, High energy consumption, need to add a lot of salt to assist dyeing

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
  • A kind of reactive yellow dye for inkjet printing and its preparation method and application
  • A kind of reactive yellow dye for inkjet printing and its preparation method and application
  • A kind of reactive yellow dye for inkjet printing and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] Embodiment 1 prepares compound (I-1)

[0066] (1) Preparation of Intermediate 1:

[0067] In a 150ml beaker, add 90g of water, 10.8g of m-phenylenediamine and beat for 20 minutes, raise the temperature to 20-25°C, slowly add 73g of 30% dilute hydrochloric acid, dissolve the m-phenylenediamine, add 8.45g of sodium cyanate to the dissolved m-phenylenediamine In the diamine solution, the temperature is always controlled at 8-20°C, and the pH is adjusted to 3-3.5 with a 10% soda ash aqueous solution, and reacted for 1 hour. After the reaction is completed, a sample is taken for analysis, and the pH is adjusted to 7 after passing the test.

[0068] (2) Diazo coupling reaction:

[0069] In a 250ml beaker, add 20g of ice, 38.3g of 2-naphthylamine-3,6,8-trisulfonic acid, grind on ice for 30 minutes, slowly add 6.97g of sodium nitrite to form diazonium salt, and use Congo red test paper during the diazonium process The acidity test shows dark blue, if it does not show dark blu...

Embodiment 2

[0074] Embodiment 2 prepares compound (I-2)

[0075] (1) Preparation of intermediate 2:

[0076] In a 150ml beaker, add 90g of water, 10.8g of m-phenylenediamine and beat for 20 minutes, raise the temperature to 20-25°C, slowly add 73g of 30% dilute hydrochloric acid to dissolve the m-phenylenediamine, add 8g of sodium pyrosulfite to the dissolved m-phenylenediamine In the solution, always control the temperature at 30-35°C, stir for 20 minutes, then slowly add 33g of formaldehyde, raise the temperature to 40-45°C after the addition, and react for 4 hours. After the reaction, take samples for analysis, adjust the pH to 7 after passing the test, and set aside.

[0077] (2) Diazo coupling reaction:

[0078] In a 250ml beaker, add 20g of ice, 38.3g of 2-naphthylamine-3,6,8-trisulfonic acid, grind on ice for 30 minutes, slowly add 6.97g of sodium nitrite to form diazonium salt, and use Congo red test paper during the diazonium process The acidity test shows dark blue, if it does...

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 relates to an ink-jet printing reactive yellow dye and a preparation method and application thereof, belonging to the field of fine chemicals. The reactive yellow dye shown in the formula (I) provided by the invention has higher solubility, good color fixation rate, color fastness, high stability after dyeing, bright shade, and can be widely used in cotton, hemp, artificial cotton It is widely used in the dip-dyeing, pad-dyeing and ink-jet printing of fiber fabrics, and the production cost is low, so it can be popularized and applied on a large scale.

Description

technical field [0001] The invention belongs to the field of fine chemicals, and in particular relates to an ink-jet printing reactive yellow dye and a preparation method thereof, in particular to its application in textile printing and dyeing. Background technique [0002] As the application rate of reactive dyes increases, the market demand is increasing, and the market's requirements for reactive dyes are also increasing. Therefore, in order to meet market demand, reactive dyes should be further improved in terms of color fixation rate, solubility, light fastness, and rubbing fastness. At present, the solubility of common reactive dyes in the market cannot meet the requirements of inkjet printing. In addition, the actual utilization rate in the dyeing process is not high, and a large part is hydrolyzed; in addition, in the traditional medium and high temperature dyeing, the dyeing water consumption is very high, Energy consumption is large, and a large amount of salt is ...

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): C07D251/50C07D251/00C09B62/085D06P5/30D06P1/382D06P3/66
CPCC09B62/082C09B62/085D06P1/382D06P3/663D06P5/30
Inventor 周沈勇王兵宋开美陈爱民苏金奇
Owner TAIXING JINYUN DYESTUFF
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