Modified anthraquinone coloring agent

An anthraquinone dyeing agent and modification technology, which is applied in the direction of hydroxyanthraquinone dyes, anthracene dyes, organic dyes, etc., can solve the problems of insufficient dyeing fastness, affecting the dyeing performance of dyes, poor weather resistance, etc., and achieve bright color , easy to industrialized production, good stability

Active Publication Date: 2014-07-23
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

[0002] There are many kinds of direct dyes or reactive dyes, complete chromatogram, bright color, low price, easy to match colors, and simple dyeing or printing methods, but the biggest disadvantage is that most of these dyes have insufficient color fastness and low color fixation rate. The weather resistance is poor, and it is easy to decompose under the action of the external environment, causing the dyed object to fade, etc., which affects the dyeing performance of these dyes

Method used

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  • Modified anthraquinone coloring agent
  • Modified anthraquinone coloring agent
  • Modified anthraquinone coloring agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Add 40 parts of chlorosulfonic acid into the reaction vessel, slowly add 20 parts of solvent orange 63, and control the temperature between 25-40°C when feeding. After the addition, slowly raise the temperature to 90°C, and keep stirring at this temperature for 1h. After the heat preservation is over, the temperature is evenly raised to 100-120°C, and the temperature is kept at 100-120°C for 6 hours. After the heat preservation is over, add an appropriate amount of thionyl chloride, and continue the heat preservation for 1.0h. It was then poured into ice water, filtered to obtain anthraquinonesulfonyl chloride substituted with chlorosulfonic acid, and washed with 0.5% dilute hydrochloric acid ice water. Add the chlorosulfonate filter cake to 100 parts of water, cool to below 20°C, adjust the pH to 7.5 with an aqueous solution of 3,3-dimethoxypropanolamine, and stir at below 20°C for 2-4 hours. Raise the temperature to 20-30 degrees, add 30% hydrochloric acid, then sti...

Embodiment 2

[0038] Add 80 parts of chlorosulfonic acid into the reaction vessel, slowly add 20 parts of solvent orange 63, and control the temperature between 25-40°C when feeding. After the addition, slowly raise the temperature to 90°C, and keep stirring at this temperature for 1h. After the heat preservation is over, the temperature is evenly raised to 100-120°C, and the temperature is kept at 100-120°C for 6 hours. After the heat preservation is over, add an appropriate amount of thionyl chloride, and continue the heat preservation for 1.0h. It was then poured into ice water, filtered to obtain anthraquinonesulfonyl chloride substituted with chlorosulfonic acid, and washed with 0.5% dilute hydrochloric acid ice water. Add the chlorosulfonate filter cake to 100 parts of water, cool to below 20°C, adjust the pH to 7.5 with an aqueous solution of isopropanolamine, and stir at below 20°C for 2-4 hours. Raise the temperature to 20-30 degrees, add 30% hydrochloric acid, then stir and filt...

Embodiment 3

[0041] Add 60 parts of chlorosulfonic acid into the reaction vessel, slowly add 20 parts of solvent orange 63, and control the temperature between 25-40°C when feeding. After the addition, slowly raise the temperature to 90°C, and keep stirring at this temperature for 1h. After the heat preservation is over, the temperature is evenly raised to 100-120°C, and the temperature is kept at 100-120°C for 6 hours. After the heat preservation is over, add an appropriate amount of thionyl chloride, and continue the heat preservation for 1.0h. It was then poured into ice water, filtered to obtain anthraquinonesulfonyl chloride substituted with chlorosulfonic acid, and washed with 0.5% dilute hydrochloric acid ice water. Add the chlorosulfonate filter cake to 100 parts of water, cool to below 20°C, adjust the pH to 7.5 with 4-amino-2,2,6,6-tetramethylpiperidine solution, and stir at below 20°C for 2-4 Hour. Raise the temperature to 20-30 degrees, add 30% hydrochloric acid, then stir a...

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Abstract

The invention discloses a modified anthraquinone coloring agent, which is prepared by introducing amino groups / substituted amino groups / piperidyl groups and water-soluble sulfonic groups into the molecular structure of a water-insoluble anthraquinone dye taken as the basic material through modification. The modified anthraquinone coloring agent has a structural formula (1) which is represented in the description, and has the characteristics of bright color, strong coloring performance, high coloring rate, good cooperation among each component, no layering, no deposition, and low color degree, high solubility, and good stability of sewage after the paper pulp coloring process,. The using amount of color-fixing agent used in the conventional printing and dyeing process is reduced, so the pollution to the environment is reduced. Moreover the modified anthraquinone coloring agent can be easily applied to industrial production, so the costs for papermaking and paper printing and dyeing are greatly reduced.

Description

technical field [0001] The present invention relates to a modified anthraquinone dyeing agent, in particular to a water-insoluble anthraquinone dye that introduces amino groups or substituted amino groups or piperidine amino groups and water-soluble sulfonic acid groups into the molecular structure through modification. , so that the modified dyeing agent has the characteristics of high solubility, good stability, no layering and no precipitation, etc., which not only reduces the use of color fixing agents in the traditional printing and dyeing process, reduces the impact on the environment during the printing and dyeing process, but also is easy to industrialize Production, greatly reducing the cost of papermaking and paper printing and dyeing. Background technique [0002] There are many kinds of direct dyes or reactive dyes, complete chromatogram, bright color, low price, easy to match colors, and simple dyeing or printing methods, but the biggest disadvantage is that mos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B1/24C09B1/12C09B5/02
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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