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Novel environment-friendly acid blue-light red dye applied to furs and synthesis method of dye

A red dye, a new type of technology, applied in dyeing methods, azo dyes, organic dyes, etc., can solve the problems of color dyes that cannot meet the requirements of consumers, poor level dyeing, poor solubility, etc., to achieve superior compatibility, The dyeing residue is shallow and has no allergenic effect

Active Publication Date: 2015-03-25
BEIJING FANBO CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the reform and opening up, China's fur market has matured day by day, and has formed a large scale and influence. With the establishment and formation of national independent brands, it has broken the monopoly pattern of foreign brands for a long time. As far as fur dyes are concerned, due to The chromatogram is complete, and the current market dyes can meet the needs of most consumers, and consumers have a lot of choice
[0004] However, there are still some color dyes whose properties cannot meet the requirements of consumers, such as blue light red dyes. As far as the market is concerned, there are few blue light red dyes, and the only varieties also have shortcomings such as poor fastness, poor solubility, and poor level dyeing.

Method used

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  • Novel environment-friendly acid blue-light red dye applied to furs and synthesis method of dye
  • Novel environment-friendly acid blue-light red dye applied to furs and synthesis method of dye
  • Novel environment-friendly acid blue-light red dye applied to furs and synthesis method of dye

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] A kind of synthetic method of novel environment-friendly acid blue light red dye for fur, comprises the following steps:

[0063] (1) Diazotization reaction

[0064] Add 100ml of water to a 500ml beaker, stir and add 9g of p-nitroaniline o-sulfonic acid, then add 18g of 33% concentrated hydrochloric acid, and stir for 30 minutes.

[0065] Add 7g of sodium nitrite to a 200ml beaker, then add 30ml of water, stir to dissolve it all, then add it into the above-mentioned 500ml beaker in a thin stream, add it within 1min, keep warm at 0°C for 1.5 hours, then add sulfamic acid to remove it. Remove excess sodium nitrite.

[0066] (2) Coupling

[0067] Weigh 11g (100%) Nivenic acid in the beaker of 1000ml, add water 200ml and stir, weigh 5g 30% sodium hydroxide aqueous solution, join in the above-mentioned beaker, stir and make material all dissolve, make PH between 8 to 9, then Filter with a Buchner funnel, filter out the insoluble matter, put the filtered solution in a 2000...

Embodiment 2

[0073] A kind of synthetic method of novel environment-friendly acid blue light red dye for fur, comprises the following steps:

[0074] (1) Diazotization reaction

[0075] Add 100ml of water to a 500ml beaker, stir and add 10g of p-nitroaniline o-sulfonic acid, then add 19g of 33% concentrated hydrochloric acid, and stir for 30 minutes.

[0076] Add 8g of sodium nitrite to a 200ml beaker, then add 30ml of water, stir to dissolve it all, then add it into the above 500ml beaker in a thin stream, finish adding within 2min, keep warm at 5°C for 2.5 hours, then add sulfamic acid to remove Remove excess sodium nitrite.

[0077] (2) Coupling

[0078] Weigh 12g (100%) Nivenic acid in the beaker of 1000ml, add water 200ml and stir, weigh 5g 30% sodium hydroxide aqueous solution, join in the above-mentioned beaker, stir and make material all dissolve, make PH between 8 to 9, then Filter with a Buchner funnel, filter out the insoluble matter, put the filtered solution in a 2000ml bea...

Embodiment 3

[0084] A kind of synthetic method of novel environment-friendly acid blue light red dye for fur, comprises the following steps:

[0085] (1) Diazotization reaction

[0086] Add 100ml of water to a 500ml beaker, stir and add 9.48g of p-nitroaniline o-sulfonic acid, then add 18.25g of 33% concentrated hydrochloric acid, and stir for 30 minutes.

[0087] Add 7.35g of sodium nitrite to a 200ml beaker, then add 30ml of water, stir to dissolve it all, then add it into the above 500ml beaker in a thin stream, finish adding within 1min, keep warm at 3°C ​​for 2 hours, then add sulfamic acid Remove excess sodium nitrite.

[0088] (2) Coupling

[0089] Weigh 11.76g (100%) Nivenic acid in the beaker of 1000ml, add water 200ml and stir, weigh 5g 30% sodium hydroxide aqueous solution, join in the above-mentioned beaker, stir and make material all dissolve, make PH between 8 to 9, Then filter with a Buchner funnel, filter out the insoluble matter, put the filtered solution in a 2000ml be...

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PUM

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Abstract

The invention relates to the field of processing processes of animal furs and in particular relates to a novel environment-friendly acid blue-light red dye applied to furs and a synthesis method of the dye. The structural formula of the novel environment-friendly acid blue-light red dye is as shown in the description. The method comprises the following steps: (1) carrying out diazo-reaction; and (2) coupling. The dye can be widely used for dyeing various furs. The blue-light red dye has a series of advantages of high dyeing degree, high net adsorption rate, good compatibility and full color and luster; meanwhile, the dye is free of 24 aromatic hydrocarbons banned by European Union; the dye is environmentally friendly; by tests, the dye is free of sensitization; the safety is ensured.

Description

technical field [0001] The invention relates to the field of animal fur treatment technology, in particular to a novel environment-friendly acid blue light red dye for fur and a synthesis method. Background technique [0002] Fur animals come in a variety of colors and vary, but the basic colors are black, white, gray, brown, and yellow. Although the colors are not too monotonous, their colors are all too natural, with darker tones being the main ones. These darker, natural color styles have occupied a large proportion in the fur clothing industry for a long time. Since the late 1990s, with the successful development of fur dyes and other fur chemical products, consumers have higher and higher requirements for the color of fur products, especially after entering the 21st century. People are more fond of colorful and individual fashion products. Under the impetus of this trend, the development of fur dyeing has become an indispensable process of fur processing and occupies ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B29/16C09B29/03D06P3/32D06P1/06
Inventor 苏巨雷郑超斌郑红超郝安生
Owner BEIJING FANBO CHEM
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