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Yellow dye compound and its ink composition

A technology of yellow dyes and compounds, applied in the direction of azo dyes, organic dyes, monoazo dyes, etc., can solve the problem that the color is not bright enough

Inactive Publication Date: 2009-07-01
ETHICAL INT WAREHOUSING TRADING SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the yellow ink dye compounds commonly used in the past, such as C.I. Direct Yellow 86 with a reddish color and C.I. Acid Yellow 23 with a greenish color, are not bright enough.

Method used

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  • Yellow dye compound and its ink composition
  • Yellow dye compound and its ink composition
  • Yellow dye compound and its ink composition

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0049] The preparation of formula (I) yellow dye compound of the present invention, first cyanuric chloride (cyanuric chloride) compound is dispersed, then add and dissolve 4-aminobenzenesulfonic acid (4-aminobenzenesulfonic acid) or 3-aminobenzenesulfonic acid ( 3-aminobenzenesulfonic acid) for a condensation reaction. Then add the solution of dissolving 2,4-diaminobenzenesulfonic acid (2,4-diaminobenzenesulfonic acid) or its salts to carry out secondary condensation reaction. Add sodium nitrite and hydrochloric acid aqueous solution to the reacted condensate for diazotization reaction to produce diazonium salt solution. The diazonium salt solution and 1-ethyl-3-sulfonic acid methyl-4-methyl-6-hydroxy-pyridone (1-ethyl-3-sulphomethyl-4-methyl-6-hydroxy-pyridone-2) or its salts for coupling reaction to produce a secondary coupling compound, and then adjust the pH of the secondary coupling product with aqueous sodium hydroxide solution, then heat up to carry out the hydrolysis...

Embodiment 1

[0060] Preparation of formula (I-1a) yellow dye compound

[0061]Add 9.5kg of cyanuric chloride compound to 30 liters of water and 9kg of ice cubes and stir together to disperse. After uniform dispersion, add 30 liters of water and 3 liters of 45% liquid caustic soda to dissolve 8.5kg of 4-aminobenzenesulfonate Acid (4-aminobenzenesulfonic acid), conduct a condensation reaction, keep the temperature 5 ~ 10 ℃, pH = 2 ~ 2.5. After the reaction is complete, add 9kg of powdered 2.4-diaminobenzenesulfonic acid (2,4-diaminobenzenesulfonic acid) for secondary condensation reaction, keeping the temperature at 20-40°C and pH=5-7 until the reaction is complete. Add 3.6Kg of sodium nitrite and 20 liters of 32% hydrochloric acid aqueous solution to the reacted condensate, add ice and cool down to 5-15°C for diazotization reaction until the diazotization reaction is complete. The obtained diazonium salt solution is dissolved with 30 liters of water and 2 liters of 45% liquid caustic soda ...

Embodiment 2

[0063] Preparation of formula (I-2a) yellow dye compound

[0064] Add 9.5kg of cyanuric chloride (cyanuric chloride) compound to 30 liters of water and 9kg of ice cubes and stir together for dispersion. After uniform dispersion, add 30 liters of water and 3 liters of 45% liquid caustic soda to dissolve 8.5kg of 3-aminobenzenesulfonate Acid (3-aminobenzenesulfonic acid), conduct a condensation reaction, keep the temperature at 5-10°C, and pH=2-2.5. After the reaction is complete, add 9kg of powdered 2.4-diaminobenzenesulfonic acid (2,4-diaminobenzenesulfonic acid) for secondary condensation reaction, keeping the temperature at 20-40°C and pH=5-7 until the reaction is complete. Add 3.6Kg of sodium nitrite and 20 liters of 32% hydrochloric acid aqueous solution to the reacted condensate, add ice and cool down to 5-15°C for diazotization reaction until the diazotization reaction is complete. The obtained diazonium salt solution is dissolved with 30 liters of water and 2 liters of...

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Abstract

The present invention relates to a yellow dye compound, the structure of which is the following formula (I): wherein, M is H, Li, NH4 or Na. The dye compound is especially suitable for the yellow dye compound of inkjet printing ink for paper, and can be formulated to obtain greenish yellow, wide color gamut, and yellow inkjet ink with good solubility.

Description

technical field [0001] The present invention relates to a yellow dye compound, especially a yellow dye compound suitable for inkjet printing ink for paper, which can be formulated to obtain greenish yellow, wide color gamut and good solubility. Inkjet ink. Background technique [0002] It is known that C.I. Reactive Yellow 95 is used in the dyeing of cellulose fibers. In the present invention, the structure of C.I. Reactive Yellow 95 is modified, and then applied to the yellow dye compound of inkjet printing ink for paper, and the solubility of the dye compound is improved. In addition, the color of the yellow ink dye compounds commonly used in the past, such as C.I. Direct Yellow 86 with reddish light and C.I. Acid Yellow 23 with greenish light, is not bright enough. [0003] Therefore, in the dye composition of inkjet printing ink, how to provide a kind of dye formulation composition, which can be formulated into a yellow inkjet that can obtain greenish yellow, wide color...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D401/12C09B29/42C09D11/02B41J2/01
CPCC09D11/32C09B29/363
Inventor 林文琴孙自揆林仁方
Owner ETHICAL INT WAREHOUSING TRADING SHANGHAI