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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 few varieties of medium-temperature disperse dyes

Active Publication Date: 2013-08-21
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

[0070] (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 into the autoclave. After the addition, close the equipment, start magnetic stirring, and evenly heat up to 100°C , and keep the temperature at 100°C for 20-22 hours, the pressure is 0.25MPa, keep the temperature down to 45-50°C for half an hour, then slowly cool down to below 28°C, filter, recover the mother liquor water, and wash the filter cake with water, After drying, 30 g of intermediate B cyanoethylaniline was obtained.

[0071] Add 22.3ml of water, 21.7g of cyanoethylaniline, 5.6g of magnesium hydroxide, 0.15g of hydroquinone and 12.5g of chloropropene into the autoclave. After the addition, close the equipment, start magnetic stirring, and evenly heat up to 100°C for 12h , the pressure is 0.3MPa, then slowly lower the temperature to below 20°C, filter, wash the filter cake with water and dry to obtain 26g of intermediate A-a, the structural...

Embodiment 2

[0077] (1) Add 110ml of water, 27g of aniline, 17g of acrylonitrile, 0.55g of hydroquinone and 1.3g of 30% hydrochloric acid into the autoclave. After the addition, close the equipment, start magnetic stirring, uniformly heat up to 100°C, and keep The temperature is kept at 100°C for 22 hours, the pressure is 0.25MPa, the temperature is lowered to 45-50°C for half an hour, and then slowly lowered to below 28°C, filtered, and the mother liquor is recovered. The filter cake was washed with water and dried to obtain 40 g of intermediate B cyanoethylaniline.

[0078] Add 63.5g of methyl chloroacetate, 21.7g of cyanoethylaniline, and 13.7g of sodium bicarbonate to the three-necked flask, start stirring, uniformly heat up to 120°C and keep for 12h, 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).

[0079] (A-c)

[0080] (2)...

Embodiment 3

[0083] (1) Add 52.5ml of water, 17.3g of aniline, 11g of acrylonitrile, 0.3g of hydroquinone and 0.8g of 30% hydrochloric acid into the autoclave. After the addition, close the equipment, start magnetic stirring, and evenly heat up to 100°C. And keep the temperature at 100°C for 20-22 hours, the pressure is 0.25MPa, keep the temperature down to 45-50°C for half an hour, then slowly cool down to below 28°C, filter, recover the mother liquor, and wash the filter cake with water and dry Afterwards, 25 g of the intermediate B cyanoethylaniline was obtained.

[0084] Add 30ml of water, 21.7g of cyanoethylaniline, 3.5g of magnesium oxide, 0.15g of hydroquinone, and 15g of propylene chloride into the autoclave. After the addition is complete, seal the equipment, start magnetic stirring, and uniformly heat up to 100°C for 12 hours. The pressure is 0.3MPa, then slowly lower the temperature to below 20°C, filter, wash the filter cake with water, and dry to obtain 26g of intermediate A-a...

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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 dye compound, its preparation method and its 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 heterogeneous according to their molecular structure. Three types of cyclic, anthraquinone and heterocyclic disperse dyes have complicated production process and high cost, and azo dyes are the most diverse type 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 the heat resistance of the application. Low-tempera...

Claims

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Application Information

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