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

Yellowish-brown reactive dye and preparation method thereof

A reactive dye, brown technology, applied in reactive dyes, azo dyes, organic dyes, etc., can solve the problems of high cost, waste of dyes, large difference in fiber affinity, etc., and achieve high dye uptake and fixation rate, excellent The effect of color synchronization and rubbing fastness is excellent

Inactive Publication Date: 2015-08-12
ZHEJIANG YIDE CHEM
View PDF10 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Yellow brown is a sensitive color dye, and it is also the most troublesome color for printing and dyeing factories. Due to poor compatibility in the production process, different dyes have different affinity for fibers, which is easy to cause color flowers, resulting in only 50% of the original dyeing rate. Left and right, it needs repeated stripping and repairing, resulting in a huge waste of dyes, high cost, and also pollutes the environment

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
  • Yellowish-brown reactive dye and preparation method thereof
  • Yellowish-brown reactive dye and preparation method thereof
  • Yellowish-brown reactive dye and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] Embodiment 1: a kind of yellow-brown reactive dye, is made up of the compound of simple formula (1-1) structure:

[0063]

[0064] (1-1) Its synthetic method step of the compound of structure is as follows:

[0065] 1. Diazo reaction: Add 24g of p-methoxyaniline o-sulfonic acid into 100g of water and 50g of crushed ice solution for beating for 1 hour. Then add 15g of hydrochloric acid (30%), after stirring for 1 minute, add 26g of the 30% sodium nitrite solution that was dissolved into the beaten p-methoxyaniline o-sulfonic acid dropwise in 20 minutes to carry out the diazotization reaction , the temperature is controlled at 8-10°C during the dropping process, and the pH value is controlled at 1.0-1.2. And make the starch potassium iodide test paper microscopically blue, and the Congo red test paper microscopically blue. After the sodium nitrite solution is added dropwise, keep the temperature at 8-10°C, control the pH value at 1-1.2, stir and react for 30 minutes,...

Embodiment 2

[0077] Embodiment 2: a kind of yellow-brown reactive dye, is made up of the compound of simple formula (1-2) structure:

[0078]

[0079] (1-2) Its synthetic method step of the compound of structure is as follows:

[0080] 1. Diazo reaction: Add 20g of p-methylaniline o-sulfonic acid into 100g of water and 50g of crushed ice solution for beating for 1 hour. Then add 15g hydrochloric acid (30%), after stirring for 1 minute, 26g of the 30% sodium nitrite solution of dissolving clear is added dropwise in the good p-methylaniline o-sulfonic acid of beating with the time of 20 minutes and carries out diazotization reaction, During the dropping process, the temperature is controlled at 8-10°C, and the pH value is controlled at 1.0-1.2. And make the starch potassium iodide test paper microscopically blue, and the Congo red test paper microscopically blue. After the sodium nitrite solution is added dropwise, keep the temperature at 8-10°C, control the pH value at 1-1.2, stir and ...

Embodiment 3

[0094] Embodiment 3: a kind of yellow-brown reactive dye, is made up of the compound of simple formula (1-3) structure:

[0095]

[0096] (1-3) Its synthetic method step of the compound of structure is as follows:

[0097] 1. Diazo reaction: Add 24g of p-methoxyaniline o-sulfonic acid into 100g of water and 50g of crushed ice solution for beating for 1 hour. Then add 15g of hydrochloric acid (30%), after stirring for 1 minute, 26g of the 30% sodium nitrite solution that was dissolved was added dropwise in 20 minutes to the good p-methoxyaniline o-sulfonic acid for diazotization reaction , the temperature is controlled at 8-10°C during the dropping process, and the pH value is controlled at 1.0-1.2. And make the starch potassium iodide test paper microscopically blue, and the Congo red test paper microscopically blue. After the sodium nitrite solution is added dropwise, keep the temperature at 8-10°C, control the pH value at 1-1.2, stir and react for 30 minutes, and then b...

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

A yellowish-brown reactive dye and a preparation method thereof. The invention relates to a yellowish-brown reactive dye and a preparation method thereof. The yellowish-brown reactive dye includes one compound selected from a general formula (1), or a mixture compounded by more than two compounds in the general formula (1) in any proportion. R1, R2, R3, R4, R5 and R6 in the formula (1) independently represent -H, -CH3, -OCH3 and -SO3M; Y1 and Y2 independently represent -CH=CH2 and -C2H4OSO3M; and M represents hydrogen or alkali metal. The yellowish-brown reactive dye has excellent coloration synchronization, high dye uptake and fixation rate, good levelness, and excellent solarization and friction fastness.

Description

technical field [0001] The invention belongs to the field of reactive dyes in new material technology, in particular to a class of yellow-brown reactive dyes and a preparation method thereof. Background technique [0002] Reactive dyes are currently taking more and more market share, and people are paying more and more attention to their research. The research on reactive dyes began in 1956, and it has been half a century. In recent years, many review articles on reactive dyes have been published, not only involving the development of reactive dyes themselves, but also including the application performance and process of reactive dyes, focusing on improving their application performance and environmental protection. [0003] Traditional yellow-brown reactive dyes are generally based on compounding, often using three-color compounding, one red plus one yellow and a small amount of blue to compound, such as the Chinese invention with patent number CN201210488565.X A composit...

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): C09B62/513C09B67/22C09B67/36C07C317/34C07C315/04
Inventor 孟胜锋傅卫红张志伟秦杰峰罗章强杨军
Owner ZHEJIANG YIDE 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