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Reactive yellow dye for ink jet printing and preparation method and application thereof

A technology of reactive yellow and dyes, which is applied in reactive dyes, dyeing methods, azo dyes, etc., can solve the problems that the solubility cannot meet the requirements of inkjet printing, the actual utilization rate is not high, and the water consumption of dyeing is high, so as to reduce hydrolysis Side effects, increase hydrophilicity, good leveling effect

Active Publication Date: 2019-11-29
TAIXING JINYUN DYESTUFF
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the solubility of common reactive dyes in the market cannot meet the requirements of inkjet printing. In addition, the actual utilization rate in the dyeing process is not high, and a large part is hydrolyzed; in addition, in the traditional medium and high temperature dyeing, the dyeing water consumption is very high, High energy consumption, need to add a lot of salt to assist dyeing

Method used

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  • Reactive yellow dye for ink jet printing and preparation method and application thereof
  • Reactive yellow dye for ink jet printing and preparation method and application thereof
  • Reactive yellow dye for ink jet printing and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] Embodiment 1 prepares compound (I-1)

[0066] (1) Preparation of Intermediate 1:

[0067] In a 150ml beaker, add 90g of water, 10.8g of m-phenylenediamine and beat for 20 minutes, raise the temperature to 20-25°C, slowly add 73g of 30% dilute hydrochloric acid, dissolve the m-phenylenediamine, add 8.45g of sodium cyanate to the dissolved m-phenylenediamine In the diamine solution, the temperature is always controlled at 8-20°C, and the pH is adjusted to 3-3.5 with a 10% soda ash aqueous solution, and reacted for 1 hour. After the reaction is completed, a sample is taken for analysis, and the pH is adjusted to 7 after passing the test.

[0068] (2) Diazo coupling reaction:

[0069] In a 250ml beaker, add 20g of ice, 38.3g of 2-naphthylamine-3,6,8-trisulfonic acid, grind on ice for 30 minutes, slowly add 6.97g of sodium nitrite to form diazonium salt, and use Congo red test paper during the diazonium process The acidity test shows dark blue, if it does not show dark blu...

Embodiment 2

[0074] Embodiment 2 prepares compound (I-2)

[0075] (1) Preparation of intermediate 2:

[0076] In a 150ml beaker, add 90g of water, 10.8g of m-phenylenediamine and beat for 20 minutes, raise the temperature to 20-25°C, slowly add 73g of 30% dilute hydrochloric acid to dissolve the m-phenylenediamine, add 8g of sodium pyrosulfite to the dissolved m-phenylenediamine In the solution, always control the temperature at 30-35°C, stir for 20 minutes, then slowly add 33g of formaldehyde, raise the temperature to 40-45°C after the addition, and react for 4 hours. After the reaction, take samples for analysis, adjust the pH to 7 after passing the test, and set aside.

[0077] (2) Diazo coupling reaction:

[0078] In a 250ml beaker, add 20g of ice, 38.3g of 2-naphthylamine-3,6,8-trisulfonic acid, grind on ice for 30 minutes, slowly add 6.97g of sodium nitrite to form diazonium salt, and use Congo red test paper during the diazonium process The acidity test shows dark blue, if it does...

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Abstract

The invention relates to a reactive yellow dye for ink jet printing and a preparation method and application thereof, belonging to the field of fine chemical industry. The reactive yellow dye shown inthe formula(I)has higher solubility, good fixation rate and color fastness, high stability after dyeing and bright color light, can be widely applied to dip dyeing, pad dyeing and ink jet printing ofcotton, hemp and artificial cotton fiber fabrics, has low production cost, and can be popularized and applied on a large scale.

Description

technical field [0001] The invention belongs to the field of fine chemicals, and in particular relates to an ink-jet printing reactive yellow dye and a preparation method thereof, in particular to its application in textile printing and dyeing. Background technique [0002] As the application rate of reactive dyes increases, the market demand is increasing, and the market's requirements for reactive dyes are also increasing. Therefore, in order to meet market demand, reactive dyes should be further improved in terms of color fixation rate, solubility, light fastness, and rubbing fastness. At present, the solubility of common reactive dyes in the market cannot meet the requirements of inkjet printing. In addition, the actual utilization rate in the dyeing process is not high, and a large part is hydrolyzed; in addition, in the traditional medium and high temperature dyeing, the dyeing water consumption is very high, Energy consumption is large, and a large amount of salt is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B62/085D06P5/30D06P1/382D06P3/66
CPCC09B62/082C09B62/085D06P1/382D06P3/663D06P5/30
Inventor 周沈勇王兵宋开美陈爱民苏金奇
Owner TAIXING JINYUN DYESTUFF
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