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Azo dye compound with high washing fastness, preparation method and application

A technology of azo dyes and compounds, applied in azo dyes, monoazo dyes, organic dyes, etc., can solve the problems of high concentration of toxic and harmful substances, low color intensity of original dyes, small extinction coefficient of molar molecules, etc. Good washing fastness, excellent washing fastness, bright color effect

Active Publication Date: 2021-10-01
嘉禾宜事达(沈阳)化学有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, Disperse Red 60 itself has some serious defects at the same time: low lifting power, not suitable for dyeing dark colors; poor sublimation fastness; 14346mol -1 cm -1 ); the biggest problem is: Disperse Red 60 belongs to anthraquinone dyes. In the manufacturing process, the discharge of "three wastes" is huge, the concentration of toxic and harmful substances is very high, and it is very difficult to control. Therefore, since the 1980s, the western Dyestuff companies in developed countries, Japan and South Korea have stopped the production of such dyes one after another
However, the washing fastness of Disperse Red 343 is poor, which is an important flaw

Method used

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  • Azo dye compound with high washing fastness, preparation method and application
  • Azo dye compound with high washing fastness, preparation method and application
  • Azo dye compound with high washing fastness, preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] Add 180G of sulfuric acid and 56G of nitrosylsulfuric acid into a 250ml three-necked flask, cool down to 0-5°C in an ice bath under stirring, add 58.6G of compound (A-1) in portions for 1 hour, and keep at this temperature Stir for 3 hours.

[0070]

[0071] After the reaction is completed, a diazo solution is obtained; at a temperature of 5-9°C, drop the diazo solution into a mixture containing 50ML of sulfuric acid, 800G of ice water and 56.48G of compound (B-1) within 1 hour in, stirred for 3 hours, filtered, washed with water and dried to obtain the azo dye compound (X 1 -1) 111.15G.

[0072]

[0073] The dye is used for dyeing polyester fiber in red light orange. λmax (nm) = 445nm.

Embodiment 2

[0075] According to the preparation method of embodiment 1 synthetic dyestuff (X 1 -2), the dye is used for polyester fiber dyeing red light orange. λmax (nm) = 449.1 nm.

[0076]

Embodiment 3

[0078] According to the preparation method of embodiment 1 synthetic dyestuff (X 1 -3), the dye is used for dyeing polyester fiber to get golden yellow. λmax (nm) = 445nm.

[0079]

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PUM

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Abstract

The invention belongs to the technical field of textile dyes, and particularly relates to an azo dye compound with high washing fastness, a preparation method and application. The structure of the azo dye compound is shown in the following formula (1). The azo dye compound is used as a disperse dye to be applied to dyeing and printing of polyester / polyamide fiber fabrics, and corresponding colored light from orange to blue (specifically including yellow, orange, red, purple and blue) is obtained. The azo dye compound disclosed by the invention not only has the advantages of keeping bright color of disperse red 343 (very close to disperse red 60), high dyeing fixation rate and environment-friendly production process, but also is a disperse dye with very excellent washing fastness.

Description

technical field [0001] The invention belongs to the technical field of textile dyes, and in particular relates to an azo dye compound with high washing fastness, a preparation method and an application. Background technique [0002] Among the red varieties of disperse dyes, Disperse Red 60 has the greatest influence: bright shade (bright blue light red), good level dyeing and light fastness, it is very popular among users and has a large market consumption. However, Disperse Red 60 itself has some serious defects at the same time: low lifting power, not suitable for dyeing dark colors; poor sublimation fastness; 14346mol -1 cm -1 ); the biggest problem is: Disperse Red 60 belongs to anthraquinone dyes. In the manufacturing process, the discharge of "three wastes" is huge, the concentration of toxic and harmful substances is very high, and it is very difficult to control. Therefore, since the 1980s, the western Dyestuff companies in developed countries, Japan and South Kor...

Claims

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Application Information

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IPC IPC(8): C09B29/26C09B29/01D06P1/18D06P3/26D06P3/54
CPCC09B29/26C09B29/0003D06P1/18D06P3/26D06P3/54
Inventor 李海玉卞真俊沙英华赵闯宋域灿
Owner 嘉禾宜事达(沈阳)化学有限公司
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