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Green reactive dye and preparation method thereof

A reactive dye and green technology, applied in the field of green reactive dyes, can solve the problems of large difference in fiber affinity, poor compatibility, environmental pollution, etc., and achieve the effect of strong electron absorption ability, good compatibility and high improvement.

Inactive Publication Date: 2015-06-10
ZHEJIANG YIDE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Green 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 about 50% of the genuine products dyed once. , requires repeated stripping and color repairing, resulting in a great waste, but also pollute the environment

Method used

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  • Green reactive dye and preparation method thereof
  • Green reactive dye and preparation method thereof
  • Green reactive dye and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Embodiment 1: a kind of green reactive dye, is made up of the compound of simple formula (1-1) structure:

[0056]

[0057] (1-1) Its synthetic method step of the compound of structure is as follows:

[0058] 1. Diazo reaction: Add 20g of p-nitroaniline o-sulfonic acid into 100g of water and 50g of crushed ice solution for beating for 1 hour. Then add 30g hydrochloric acid (30%), after stirring for 1 minute, 12g of 30% sodium nitrite solution of dissolving is added dropwise in the good p-nitroaniline 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 react for 30 minute...

Embodiment 2

[0066] Embodiment 2: a kind of green reactive dye, is made up of the compound of simple formula (1-2) structure:

[0067]

[0068] Its preparation method adopts following raw materials:

[0069]

[0070] R in formula (Ⅰ) 1 Representative-SO 3 Na, M in formula (II) represents -Na, R in formula (III) 2 Representative-OCH 3 , R 3 Rep-H, Y 1 Representative-C 2 h 4 OSO 3 Na;

[0071] And make according to the following steps:

[0072] 1. Diazo reaction: Add the compound of formula (I) into the solution of water and crushed ice for beating for about 1 hour. Then add hydrochloric acid (30%), after stirring for 1 minute, the 30% sodium nitrite solution of dissolving is added dropwise in the compound of the formula (I) that makes a slurry with the time of 15-30 minute and carry out diazotization reaction, dropwise During the addition 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 p...

Embodiment 3

[0080] Embodiment 3: a kind of green reactive dye, is made up of the compound of simple formula (1-3) structure:

[0081]

[0082] Its preparation method adopts following raw materials:

[0083]

[0084] R in formula (Ⅰ) 1 Representative-SO 3 Na, M in formula (II) represents -Na, R in formula (III) 2 Representative-OCH 3 , R 3 Representative-OCH 3 , Y 1 Representative-C 2 h 4 OSO 3 Na;

[0085] Its preparation steps are identical with embodiment 2.

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Abstract

The invention discloses a green reactive dye and a preparation method thereof. The green reactive dye is a substance having structure general formula selected from one of a formula (1) and a formula (2) and is a mixture by compounding substances having the structure general formulas selected from the formula (1) and the formula (2) in an any proportion. In the green reactive dye, an auxiliary is also added. The formula (1) or formula (2) monomer compound of the green reactive dye can be green and is not compounded; due to the similarity of the parent structure, the mixed dye shows good effects on fabric dyeing degree, degree of fixation, uniform dyeing rate, solarization resistance, water washing resistance, and friction resistance; in addition, the water solubility, uniform dyeing rate and other dyeing effects of the green reactive dye added with the additives are improved.

Description

technical field [0001] The invention belongs to the field of reactive dyes in new material technology, and in particular relates to a green reactive dye 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 green reactive dyes are generally based on compounding, often using two-color compounding, one blue plus one yellow compound, some specific green or even three-color compound, as disclosed in the patent No. 200710156176.6 Reactive olive green co...

Claims

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Application Information

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IPC IPC(8): C09B67/24D06P1/384
Inventor 秦杰峰傅卫红孟胜锋张志伟罗章强杨军
Owner ZHEJIANG YIDE CHEM
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