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, whic

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

Example Embodiment

[0062] Example 1: A yellow-brown reactive dye consisting of a compound of simple formula (1-1):

[0063]

[0064] (1-1) The synthesis method of the compound of structure is as follows:

[0065] 1. Diazo reaction: add 24 g of p-anisidine o-sulfonic acid to 100 g of water and 50 g of crushed ice for 1 hour. Then add 15g of hydrochloric acid (30%), stir for 1 minute, add 26g of the dissolved 30% sodium nitrite solution to the beaten p-aniline o-sulfonic acid dropwise over 20 minutes for diazotization reaction , During the dripping process, the temperature is controlled at 8-10℃, and the pH value is controlled at 1.0-1.2. And make the starch potassium iodide test paper micro blue, and the Congo red test paper micro blue. After the dropwise addition of the sodium nitrite solution is completed, keep the temperature at 8-10°C, the pH value is controlled at 1-1.2, and the reaction is stirred for 30 minutes, and then 0.5 g of sulfamic acid is used to balance the excess sodium nitrite. Th...

Example Embodiment

[0077] Example 2: A yellow-brown reactive dye consisting of a compound of simple formula (1-2):

[0078]

[0079] (1-2) The synthesis method of the compound of structure is as follows:

[0080] 1. Diazo reaction: add 20 g of p-toluidine o-sulfonic acid to 100 g of water and 50 g of crushed ice for 1 hour. Then add 15g of hydrochloric acid (30%), stir for 1 minute, add 26g of the dissolved 30% sodium nitrite solution to the beaten p-toluidine o-sulfonic acid dropwise for 20 minutes for diazotization reaction. During the dropping process, the temperature is controlled at 8-10℃, and the pH value is controlled at 1.0-1.2. And make the starch potassium iodide test paper micro blue, and the Congo red test paper micro blue. After the dropwise addition of the sodium nitrite solution is completed, keep the temperature at 8-10°C, the pH value is controlled at 1-1.2, and the reaction is stirred for 30 minutes, and then 0.5 g of sulfamic acid is used to balance the excess sodium nitrite. Th...

Example Embodiment

[0094] Example 3: A yellow-brown reactive dye consisting of a compound of simple formula (1-3):

[0095]

[0096] The synthetic method steps of the compound of structure (1-3) are as follows:

[0097] 1. Diazo reaction: add 24 g of p-anisidine o-sulfonic acid to 100 g of water and 50 g of crushed ice for 1 hour. Then add 15g of hydrochloric acid (30%), stir for 1 minute, add 26g of the dissolved 30% sodium nitrite solution to the beaten p-aniline o-sulfonic acid dropwise for 20 minutes for diazotization reaction , During the dripping process, the temperature is controlled at 8-10℃, and the pH value is controlled at 1.0-1.2. And make the starch potassium iodide test paper micro blue, and the Congo red test paper micro blue. After the dropwise addition of the sodium nitrite solution is completed, keep the temperature at 8-10°C, the pH value is controlled at 1-1.2, and the reaction is stirred for 30 minutes, and then 0.5 g of sulfamic acid is used to balance the excess sodium nitrit...

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 Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap