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Yellow disperse dye compound and its synthesis method and dyeing application

A technology of disperse dyes and compounds, applied in chemical instruments and methods, applications, dyeing methods, etc., can solve problems such as poor color fastness, insufficient dyeing depth, poor color matching of polyester and ammonia, and achieve less discharge of three wastes and pH tolerance Wide and deep dyeing effect

Active Publication Date: 2019-03-15
苏州科法曼化学有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when it is applied to polyester-spandex fabrics and ultra-fine polyester fibers, problems such as poor polyester-spandex homochromaticity, insufficient dyeing depth, and poor dyeing fastness appear, and it is difficult to meet the current printing and dyeing requirements.

Method used

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  • Yellow disperse dye compound and its synthesis method and dyeing application
  • Yellow disperse dye compound and its synthesis method and dyeing application
  • Yellow disperse dye compound and its synthesis method and dyeing application

Examples

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preparation example Construction

[0046] The preparation method of described yellow disperse dye compound comprises the steps:

[0047] (1) The arylamine compound represented by the general formula (3) or the general formula (4) is subjected to a diazotization reaction in a diazotization reagent to obtain a diazonium salt, and the diazotization reagent refers to hydrochloric acid and nitrous acid Mixed solution of sodium or mixed solution of sulfuric acid and nitrosyl sulfuric acid;

[0048]

[0049] R in general formula (3) and general formula (4) 1 , R 2 , R 4 , R 5 as described above;

[0050] (2) Coupling the diazonium salt obtained in step (1) with the compound shown in general formula (5) to obtain the described yellow disperse dye compound;

[0051]

[0052] R in general formula (5) 3 , n as mentioned above.

[0053] When the yellow disperse dye compound is applied to dyeing, in order to meet the application requirements, the yellow disperse dye compound and auxiliary agents, water or other w...

Embodiment

[0059] This example includes the synthesis example of the yellow disperse dye compound of the present invention, the preparation example of the yellow disperse dye product and its dyeing application example.

[0060] 1. Synthesis of yellow disperse dye compound of the present invention and preparation of dye products

[0061] 1) Synthesis and product example 1 (synthesis of dye Ⅰ-2 and preparation of dye product)

[0062] Diazotization:

[0063] Add 23.9 grams of the compound shown in formula 3-1, 150 milliliters of water, and 30.42 grams of 30% hydrochloric acid into a stirred 250 milliliter four-neck flask, and stir to dissolve, cool down to below 5°C, and maintain the temperature at 0-5°C. Slowly add 23 grams of 30% sodium nitrite aqueous solution dropwise to carry out the diazotization reaction. The reaction takes about 2 hours. A small amount of sulfamic acid eliminates excess sodium nitrite for later use.

[0064]

[0065] Coupling reaction:

[0066] Slowly add the...

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Abstract

The invention provides a yellow disperse dye compound as well as a synthesis method and dyeing application thereof. The disperse dye compound is expressed by a general formula (1) or a general formula (2). The formula (1) and the formula (2) are as shown in the description; in the formulas, R1 to R5 and n are as defined in the description. The yellow disperse dye compound and additives can form a disperse dye according to a certain ratio; the yellow disperse dye compound is bright in color, good in deep dyeing property and wide in pH tolerance, and has excellent dyeing fastness; the yellow disperse dye is free of toxicity, free of carcinogenicity and sensitization, is safe and environmentally friendly, and can meet the requirements of market development and industrial production, emission of three wastes is little, a synthesis process is simple, and production cost is low,.

Description

technical field [0001] The invention relates to a new disperse dye compound, its preparation method, its dyeing application on fiber materials and its preparation method. Specifically, the present invention relates to a yellow disperse dye compound, its preparation method and its dyeing application on fiber materials. Background technique [0002] With the recent rapid development of textile fiber materials, pongee, jeanette, suede, superfine denier polyester fibers, etc. have appeared. These new materials are soft to the touch and comfortable to wear, and have become used by domestic and foreign textile enterprises to develop high-end Popular textile raw materials for textiles. Although the current conventional disperse dyes can barely dye these new materials, the binding force between the dye and the fiber is insufficient, not only the dyeing rate is greatly reduced, but also the fastness of all aspects of the dyed fabric is also reduced to varying degrees. New requireme...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09B29/42C09B29/01D06P1/18D06P5/30C09D11/328
CPCC09B29/0003C09B29/0014C09B29/363C09D11/328D06P1/18D06P5/30
Inventor 曾建平何健葛伟平谢兵郑怡华
Owner 苏州科法曼化学有限公司
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