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

Red dyestuff with high color fastness to water

A technology for red dyes and color fastness, applied in the field of red dyes, can solve the problems of poor color fastness and acid dye shedding, and achieve the effect of good dyeing ability and improved color fastness.

Inactive Publication Date: 2018-09-25
吴文广
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Because acid dyes contain water-soluble groups such as hydroxyl groups, they can directly dye protein fibers in acidic, weakly acidic or neutral media, but the color fastness is generally poor, and acid dyes are easy to fall off from protein fibers, resulting in acid dyes being used in protein fiber 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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The red dye with high color fastness to water provided by this embodiment comprises the following components in parts by weight: 20 parts of acid red; 3,4-epoxycyclohexylmethyl-3,4-epoxycyclohexyl carboxylate 10 parts 35 parts of urea; 5 parts of N-alkyl betaine, 1 part of 2-naphthalenesulfonic acid formaldehyde polymer sodium salt.

[0018] Dye the wool with the red dye obtained in this example for 4 hours and then dry it in the air.

[0019] According to GB / T5713-1997 "textile color fastness test milk color fastness" test standard test the color fastness of dyed wool, the results are shown in Table 1.

Embodiment 2

[0021] The red dye with high color fastness to water provided by this embodiment includes the following components in parts by weight: 25 parts of acid red; 3,4-epoxycyclohexylmethyl-3,4-epoxycyclohexyl carboxylate 5 parts 30 parts of urea; 7 parts of N-alkyl betaine, 1 part of 2-naphthalenesulfonic acid formaldehyde polymer sodium salt.

[0022] Dye the wool with the red dye obtained in this example for 4 hours and then dry it in the air.

[0023] According to GB / T5713-1997 "Textile Color Fastness Test Milk Color Fastness" test standard, the results of color fastness of dyed wool are shown in Table 1.

Embodiment 3

[0025] The red dye with high color fastness to water provided in this example comprises the following components in parts by weight: 20 parts of acid red; 10 parts of methyl 3,4-epoxycyclohexanecarboxylate; 35 parts of urea; 5 parts of base betaine, 1 part of 2-naphthalenesulfonic acid formaldehyde polymer sodium salt.

[0026] Dye the wool with the red dye obtained in this example for 4 hours and then dry it in the air.

[0027] According to GB / T5713-1997 "textile color fastness test milk color fastness" test standard test the color fastness of dyed wool, the results are shown in Table 1.

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 red dyestuff with high color fastness to water. The red dyestuff is prepared from the following components in parts by weight: 20 to 25 parts of acid red, 5 to 10 parts of cycloaliphatic epoxy resin, 30 to 35 parts of urea, 5 to 7 parts of N-alkylbetaine and 1 part of auxiliary agent. The cycloaliphatic epoxy resin is used as a carrier; the cycloaliphatic epoxy resin is stably combined with carboxyl of the N-alkylbetaine and carboxyl of the acid red through an epoxy group of the cycloaliphatic epoxy resin; furthermore, the N-alkylbetaine has relatively low viscosity and a solvent system is formed by combining the N-alkylbetaine and the urea; protein fibers have a relatively good dip dyeing capability so that the color fastness of the dyestuff is improved.

Description

technical field [0001] The invention belongs to the field of clothing, in particular to a red dye with high color fastness to water. Background technique [0002] Because acid dyes contain water-soluble groups such as hydroxyl groups, they can directly dye protein fibers in acidic, weakly acidic or neutral media, but the color fastness is generally poor, and acid dyes are easy to fall off from protein fibers, resulting in acid dyes being used in protein Fiber dyeing. [0003] In summary, there is an urgent need for a red dye with high color fastness to water. Contents of the invention [0004] In order to overcome the deficiencies of the prior art, the invention provides a red dye with high color fastness to water. [0005] The color fastness to washing is relative to the color fastness to washing of traditional acid dyes and protein fibers, and does not specifically refer to a certain numerical range. [0006] In order to solve the above problems, the technical scheme ...

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
IPC IPC(8): C09B67/24C09B67/20
CPCC09B67/0072C09B67/006
Inventor 吴文广
Owner 吴文广
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