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High-temperature disperse brown dye compound and preparation method thereof

A technology of dye compound and disperse brown, which is applied in the direction of chemical instruments and methods, azo dyes, organic dyes, etc., can solve the problems of insufficient alkali resistance, high cost, and complicated preparation process, and achieve bright color, low production cost, The effect of high color strength

Active Publication Date: 2014-07-30
JIANGSU D I A N CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, they have problems such as complex preparation process, high cost or insufficient alkali resistance.

Method used

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  • High-temperature disperse brown dye compound and preparation method thereof
  • High-temperature disperse brown dye compound and preparation method thereof
  • High-temperature disperse brown dye compound and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] The aniline compounds shown in formula (2)

[0049]

[0050] In the general formula:

[0051] R 1 is hydrogen, C 1-6 Alkyl, halogen or nitro;

[0052] R 2 is hydrogen, C 1-6 Alkyl, halogen or nitro;

[0053] R 3 is hydrogen, C 1-6 Alkyl, halogen or nitro;

[0054] R 4 is hydrogen, C 1-6 Alkyl, halogen or nitro;

[0055] That is to have the definition of above-mentioned formula (1), carry out diazotization with nitrite in hydrochloric acid medium, the diazonium salt obtained carries out coupling reaction with the basic compound shown in formula (3),

[0056]

[0057] where R 5 is hydrogen, C 1-6 Alkyl, C 1-6 Hydroxy, methoxypropyl, methoxyethoxypropyl, ethoxypropyl, n-propoxypropyl or isopropoxypropyl; also have the definition of the above general formula (1), press filter After separation by machine filtration, the monocouple disperse dye compound of the present invention shown in formula (1) is obtained.

[0058]

Embodiment 2

[0060] Add 50 g of water, 15.8 g of sodium nitrite, and 24.2 g of 2,3-dimethylaniline represented by the formula (2-1) into the cauldron, stir for 15 minutes, and set aside.

[0061]

[0062] Add 100g of water, 200g of crushed ice, and 70.6g (31%) of hydrochloric acid to the flask, slowly add the above-mentioned (2-1) mixture under stirring, keep warm for 1 hour after adding, add 1g of sulfamic acid, and filter to obtain 2,3-Dimethylaniline diazonium salt.

[0063] Shown in adding water 500g, N-H quinolinone 36g formula (a) in flask,

[0064]

[0065] Add 30g (30%) of liquid caustic soda, stir to dissolve, add 200g of small ice cubes, slowly add the above diazonium salt solution, after adding, stir and react for 1.5 hours, heat up to 80 degrees, keep warm for 1 hour, filter, wash with water , to obtain the product, the following formula (1-1).

[0066]

Embodiment 3

[0068] Add 50 g of water, 15.8 g of sodium nitrite, and 24.2 g of 2,3-dimethylaniline represented by the formula (2-1) into the cauldron, stir for 15 minutes, and set aside.

[0069]

[0070]In the flask, add 100g of water, 200g of crushed ice, 70g (31%) of hydrochloric acid, slowly add the above-mentioned (2-1) mixture under stirring, keep warm for 1 hour after adding, add 1g of sulfamic acid, filter to obtain 2 , 3-Dimethylaniline diazonium salt.

[0071] Shown in adding water 500g, methyl quinolinone 38g formula (3-2) in flask,

[0072]

[0073] Add 30g (30%) of liquid caustic soda, stir to dissolve, add 200g of small ice cubes, slowly add the above diazonium salt solution, after adding, stir and react for 1.5 hours, heat up to 75-80 degrees, keep warm for 1 hour, filter , washed with water to obtain the product, the following formula (b).

[0074]

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Abstract

The invention relates to a high-temperature disperse brown dye compound and a preparation method thereof. The high-temperature disperse brown dye compound is prepared by the following steps: diazotizing an aniline compound in an acid medium by nitrite; and then, coupling with a quinolinone coupling component. The high-temperature disperse brown dye compound used for dyeing dacron / cotton fabrics has a good application performance.

Description

technical field [0001] The invention relates to the technical field of disperse dyes, in particular to a high-temperature disperse brown dye compound and a preparation method thereof. Background technique [0002] There are similar monoazo disperse dyes in the prior art, such as disperse yellow 79, which have bright shade and high color absorption rate. However, the sublimation fastness of this dye is average, and the monochromatic application is not limited. It can easily cause a small amount of color deviation in the process of multi-component color matching. [0003] The application number is 200710068063.0 which provides a monoazo compound, its preparation method and its application. The application number is 201210013541.9 which provides a monoazo compound and its preparation method and application. However, they have problems such as complex preparation process, high cost or insufficient alkali resistance. Contents of the invention [0004] The object of the prese...

Claims

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Application Information

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IPC IPC(8): C09B29/44
Inventor 牟忠岳邱健过介生杨杰胡效奎徐叙明
Owner JIANGSU D I A N CHEM CO LTD
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