Middle-temperature type disperse dye compound and preparation method and application thereof

A technology of disperse dyes and compounds, applied in chemical instruments and methods, dyeing methods, azo dyes, etc., can solve the problem of less varieties of medium-temperature disperse dyes

Active Publication Date: 2012-07-25
ZHEJIANG JIHUA GROUP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, there are few varieties of medium-temperature disperse dyes designed by ourselves.

Method used

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  • Middle-temperature type disperse dye compound and preparation method and application thereof
  • Middle-temperature type disperse dye compound and preparation method and application thereof
  • Middle-temperature type disperse dye compound and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] (1) Add 78.8ml of water, 20.3g of aniline, 14.4g of acrylonitrile, 0.3g of hydroquinone and 0.75g of 30% hydrochloric acid to the autoclave. After adding, close the equipment, start the magnetic stirring, and heat up to 100°C evenly. , and keep the temperature at 100 ° C for 20 to 22 hours, the pressure is 0.25 MPa, after keeping the temperature to 45-50 ° C for half an hour, then slowly cool down to below 28 ° C, filter, the mother liquor water is recovered, the filter cake is washed with water, After drying, 30 g of intermediate B cyanoethylaniline was obtained.

[0072] Add 22.3 ml of water, 21.7 g of cyanoethylaniline, 5.6 g of magnesium hydroxide, 0.15 g of hydroquinone and 12.5 g of chloropropene into the autoclave. After adding, close the equipment, start the magnetic stirring, and evenly heat up to 100 ° C for 12 h , the pressure is 0.3MPa, then the temperature is slowly lowered to below 20℃, filtered, and the filter cake is washed with water and dried to obtain...

Embodiment 2

[0078] (1) Add 110ml of water, 27g of aniline, 17g of acrylonitrile, 0.55g of hydroquinone and 1.3g of 30% hydrochloric acid to the autoclave. After adding, close the equipment, start the magnetic stirring, and heat up to 100°C evenly. The temperature was kept at 100°C for 22 hours, and the pressure was 0.25MPa. After keeping, the temperature was lowered to 45-50°C for half an hour, and then slowly lowered to below 28°C, filtered, and the mother liquor was recovered. The filter cake was washed with water and dried to obtain 40 g of intermediate B cyanoethylaniline.

[0079] Add 63.5 g of methyl chloroacetate, 21.7 g of cyanoethylaniline, and 13.7 g of sodium bicarbonate to the there-necked flask, start stirring, uniformly heat up to 120 °C for 12 hours, then slowly cool down to below 20 °C, filter, and the filter cake is washed with water, After drying, 30.7 g of intermediate A-c was obtained, and the structural formula of intermediate A-c was (A-c).

[0080] (A-c) ...

Embodiment 3

[0084] (1) Add 52.5ml of water, 17.3g of aniline, 11g of acrylonitrile, 0.3g of hydroquinone and 0.8g of 30% hydrochloric acid to the autoclave. After adding, close the equipment, start the magnetic stirring, and heat up to 100°C evenly. And keep the temperature at 100°C for 20-22 hours, the pressure is 0.25MPa, after keeping it cool down to 45-50°C for half an hour, then slowly cool down to below 28°C, filter, recover the mother liquor, and the filter cake is washed and dried Then, 25 g of intermediate B cyanoethylaniline was obtained.

[0085] Add 30ml of water, 21.7g of cyanoethylaniline, 3.5g of magnesium oxide, 0.15g of hydroquinone and 15g of chloropropene into the autoclave. After adding, close the equipment, start the magnetic stirring, and evenly heat it to 100°C for 12h. The pressure is 0.3MPa, then slowly cooled to below 20°C, filtered, and the filter cake was washed with water and dried to obtain 26g of intermediate A-a of structural formula (A-a).

[0086] (2) Ad...

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Abstract

The invention discloses a middle-temperature type disperse dye compound and a preparation method and application thereof, relating to the technical field of a disperse dye. In order to solve the problem that the traditional middle-temperature types disperse dye is fewer in varieties, the invention provides the monoazo disperse dye compound and the preparation method and application thereof. The general formula of the middle-temperature type disperse dye compound is shown in (I); and the middle-temperature type disperse dye compound is used for dyeing polyester fibers, has the advantages of good dyeing effect at a high temperature and a high pressure, high fixation rate, low cost, high color yield, good fastness and simple production technology.

Description

technical field [0001] The invention relates to the technical field of disperse dyes, in particular to a medium temperature type dye compound, a preparation method thereof and an application in polyester fiber dyeing. Background technique [0002] Disperse dyes are a class of non-ionic dyes with low water solubility. With the development of synthetic fibers, new requirements are put forward for dyes, that is, dyes with better hydrophobicity, certain dispersibility and sublimation resistance are required. Disperse dyes can be divided into azo type, anthraquinone type and The three types of cyclic type, the production process of anthraquinone type and heterocyclic type disperse dyes are more complicated and the cost is higher. Azo dyes are the most varieties of synthetic dyes. At the same time, disperse dyes can be divided into low temperature type, medium temperature type and high temperature type according to different heat resistance properties during application. Low-te...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B29/085D06P1/18D06P3/54
Inventor 简卫孙岩峰陈美芬
Owner ZHEJIANG JIHUA GROUP
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