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Ruby azo dye as well as preparation method and application thereof

A ruby ​​azo and dye technology, applied in the field of dyes, can solve the problems of poor washing fastness, affecting the dyeing fastness of dyes to fabrics, etc., and achieve the effects of low cost, excellent washing fastness and high dyeing strength.

Inactive Publication Date: 2017-12-15
HANGZHOU FLARIANT SPECIALTY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Azo dyes have a variety of colors, such as red, yellow, green, blue, etc., but the existing ruby ​​azo dyes have problems such as poor washing fastness, and are easily migrated from the interior of the fabric fibers under high temperature conditions. Seriously affect the color fastness of dyes to fabrics

Method used

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  • Ruby azo dye as well as preparation method and application thereof
  • Ruby azo dye as well as preparation method and application thereof
  • Ruby azo dye as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A kind of ruby ​​azo dye of the present embodiment, structural formula is as follows:

[0035]

[0036] where R 1 means CN;

[0037] R 2 represents methylene;

[0038] R 3 Indicates ethyl.

[0039] The preparation method of this ruby ​​azo dye is as follows:

[0040] (1) Take chloroacetic acid, HO(CH 2 ) n O(CH 2 ) m CH 3 , reflux dehydration in a toluene system at 100-150 degrees Celsius for esterification to obtain ester reactants;

[0041] Among them, the possible value of n is 1, and the possible value of m is 1;

[0042] (2) Take m-aminoacetanilide, and react with ester reactants under the action of sodium carbonate at 100-150 degrees Celsius. After the reaction is completed, excess ester reactants are evaporated, and water is added to remove the oil layer, and ice is added to the oil layer. Acetic acid is dissolved to obtain the coupling component;

[0043] (3) Add water in the diazo kettle, and slowly add sulfuric acid at a temperature lower than ...

Embodiment 2

[0049] A kind of ruby ​​azo dye of the present embodiment, structural formula is as follows:

[0050]

[0051] where R 1 means Cl;

[0052] R 2 represents ethylene;

[0053] R 3 Indicates methyl.

[0054] The preparation method of the ruby ​​azo dye refers to Example 1. In this example, the value of n is 2, and the value of m is 0.

Embodiment 3

[0056] A kind of ruby ​​azo dye of the present embodiment, structural formula is as follows:

[0057]

[0058] where R 1 means CN;

[0059] R 2 represents ethylene;

[0060] R 3 Indicates butyl.

[0061] The preparation method of the ruby ​​azo dye refers to Example 1. In this example, the value of n is 2, and the value of m is 3.

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Abstract

The invention discloses a ruby azo dye as well as a preparation method and application thereof. A structural formula is shown as a general formula (I). The ruby azo dye is applied to polyester fiber dyeing or pattern printing. During the dyeing, the washing-resistant fastness, the friction-resistant fastness, the sweat-stain-resistant fastness, the sunlight-resistant fastness and the coloring rate are good. The disperse dye composition provided by the invention has the advantages that the dyeing intensity is high; the color and luster are vivid; the dyeing performance is good; particularly, the excellent water washing firmness is realized; the color and luster are stable; the color cannot easily fade; the cost is low.

Description

technical field [0001] The invention belongs to the technical field of dyes, and in particular relates to a ruby ​​azo dye and a preparation method and application thereof. Background technique [0002] After entering the 21st century, the competition in the world's textile market has become increasingly fierce. Southeast Asia's economy has become synonymous with low cost and high growth, and the textile industry business in Europe and the United States has also accelerated its transfer to Asia. In order to adapt to the situation of fierce competition in the textile market, it has become the common goal of textile enterprises to continuously reduce the production cost of textiles, continuously improve product quality, and continuously reduce environmental loads. [0003] Disperse dyes have very low solubility in water, very fine particles, and are dispersed in the dye solution. They are non-ionic dyes and are mainly used for polyester dyeing with high color fastness. [000...

Claims

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Application Information

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IPC IPC(8): C09B29/01C09B29/32C09B29/085D06P1/18D06P3/54
CPCC09B29/0003C09B29/0838C09B29/32D06P1/18D06P3/54
Inventor 李百春
Owner HANGZHOU FLARIANT SPECIALTY
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