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Triazine type azo dye and preparation method thereof

A kind of technology of azo dyes and triazine type, applied in the field of triazine type azo dyes and its preparation, can solve the problems of heat resistance, poor color fastness to light, easy decomposition, affecting the dyeing performance of azo dyes, etc.

Inactive Publication Date: 2013-09-18
上海汇友精密化学品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, especially when the color fastness of azo dyes is not good, or when the color fastness to heat and light is not good, it is easy to decompose under the action of the external environment, causing the dyed object to fade, etc., which affects the dyeing of azo dyes performance

Method used

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  • Triazine type azo dye and preparation method thereof
  • Triazine type azo dye and preparation method thereof
  • Triazine type azo dye and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] a) Add 40g of water, 0.8g of wetting agent and 60g of ice into a 500mL reaction flask, control the temperature at 0-1°C with an ice-salt bath, and stir rapidly; then add 18.6g of cyanuric chloride (99%, MW=184.5 , 0.10mol), stirred rapidly for 30 minutes, ground cyanuric chloride in ice-water mixture, and controlled the temperature at 0-1°C. The product is a white suspension.

[0065] b) Add 27.5g of water and 1.8g of NaHCO to a 100mL beaker 3 And 16.3gDSD acid (96.68%, MW=370.41, 0.0425mol), stir well; Then add NaHCO carefully 3 Adjust the pH to 6.5-6.8, stir until the DSD acid is completely dissolved, add a small amount of antifoaming agent to defoam; add 20g of ice to it and cool down to 0-5°C, pH = 6.5-7.0.

[0066] c) Add the DSD acid solution in the above second step b) dropwise to the cyanuric chloride solution to carry out the first condensation reaction, the dropping time is controlled at about 1h, and the reaction temperature is controlled at 0-3 with an ice...

Embodiment 2

[0078] As in Example 1, 18.6g of cyanuric chloride was weighed and condensed with 16.3g of DSD acid, 29.0g of H acid monosodium salt and 13.3g of 4-amino-2,2,6,6-tetramethylpiperidine (TEMP) successively, The tricondensate was coupled with 7.9 g of aniline diazonium salt to obtain the triazine-type azo dye of the general formula (1) of the present invention.

Embodiment 3

[0080] As in Example 1, 18.6g of cyanuric chloride was weighed and condensed with 13.3g of 4-amino-2,2,6,6-tetramethylpiperidine (TEMP), 29.0g of monosodium H acid and 16.3g of DSD successively. The tricondensate was coupled with 7.9 g of aniline diazonium salt to obtain the triazine-type azo dye of the general formula (1) of the present invention.

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Abstract

The invention relates to a triazine type azo dye with the general formula (I) shown in the specification and a preparation method of the azo dye. A novel azo dye is obtained by introducing a chloro-s-triazine group into a general monoazo dye and performing a series of condensation reaction. The azo dye comprises a plurality of color-development groups, wherein the contained hindered amine is capable of adsorbing infrared, the DSD acid (namely 4,4'-diamino stilbestrol-2,2'-disulfonic acid) is capable of adsorbing the ultraviolet in the sunlight, and the azo dye is provided with good illumination resistance and sunshine resistance, can be singly or together used with other dyes, and can be applied to the aspects of textile, paper, leather, wood, ink-jet printing ink, and oil ink. The azo dye is a good energy transfer. By containing a plurality of functional groups, the azo dye provided by the invention has more excellent weather resistance than that of a general azo dye.

Description

technical field [0001] The invention relates to a triazine type azo dye and a preparation method thereof. The triazine-type azo dye is condensed by cyanuric chloride and DSD acid, and then reacted with hindered amine 4-Z-2,2,6,6-tetramethylpiperidine, 1-amino-8- The coupling product of naphthol-3,6-disulfonic acid (i.e. H acid monosodium salt) or 2-amino-8-naphthol-6-sulfonic acid (i.e. gamma acid) and aniline diazonium salt is carried out secondary and three condensation reactions. The dye has fast dyeing speed and high dyeing rate for paper and pulp, and the dyed product has excellent light fastness and wet color fastness. In addition, even when it is used in the surface (coloring) dyeing of materials dyed with anionic dyes such as direct dyes and acid dyes, such as wool, silk, leather, and kapok, compared with the case of using general azo dyes, It was found that its resistance to sunlight was greatly improved. Background technique [0002] As we all know, in the mole...

Claims

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Application Information

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IPC IPC(8): C09B56/08C09B33/12D06P1/06C09D11/02B27K5/02D21H19/42D21H21/28
Inventor 黄胜梅俞伯洪朱小兵
Owner 上海汇友精密化学品有限公司
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