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A kind of naphthoquinone type brown reactive disperse dye and preparation method thereof

A reactive disperse dye, naphthoquinone type technology, applied in reactive dyes, dyeing methods, azo dyes, etc., to achieve the effect of stable performance, bright dyeing and good compatibility

Active Publication Date: 2016-03-02
JIANGSU JIHUA CHEMICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

And use naphthoquinone as chromophore as reactive disperse dye domestic no report

Method used

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  • A kind of naphthoquinone type brown reactive disperse dye and preparation method thereof
  • A kind of naphthoquinone type brown reactive disperse dye and preparation method thereof
  • A kind of naphthoquinone type brown reactive disperse dye and preparation method thereof

Examples

Experimental program
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Embodiment 1

[0028] A preparation method of naphthoquinone-type brown reactive disperse dye, the preparation method includes the following steps:

[0029] ① Beat p-β-hydroxyethyl sulfone sulfate aniline, deionized water and crushed ice in an ice bath to obtain an ice aqueous solution of p-β-hydroxyethyl sulfone sulfate aniline. The molar ratio of ester aniline, deionized water and crushed ice is 1:10:10; the sodium nitrite is dissolved in deionized water and then crushed ice is added to obtain an ice water solution of sodium nitrite. The sodium nitrite and deionized water The molar ratio to crushed ice is 1.2:10:10; the ice water solution of p-hydroxyethyl sulfone sulfate aniline is mixed with the ice water solution of sodium nitrite to obtain solution I; the p-β-hydroxyethyl The molar ratio of sulfone sulfate aniline to sodium nitrite is 1:1.2;

[0030] ②Add concentrated hydrochloric acid to solution I, stir at 5°C for 30 minutes, and adjust the pH to 6 to obtain solution II. The molar ratio ...

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Abstract

The invention relates to a naphthaquinone-type brown reactive disperse dye and a preparation method thereof, belonging to the field of dye chemistry in fine chemical engineering. The structure of the dye is disclosed as Formula I. The dye has the advantages of excellent color fastness and excellent light fastness, and can be used for dyeing terylene-cotton blended fabrics.

Description

Technical field [0001] The invention relates to a naphthoquinone type brown reactive disperse dye and a preparation method thereof, and belongs to the field of fine chemical dye chemistry. Background technique [0002] Naphthoquinone is a kind of natural organic compound that widely exists in nature. From the structural point of view, there can be three types of 1,4-naphthoquinone, 1,2-naphthoquinone, and 2,6-naphthoquinone. The vast majority are 1,4-naphthoquinone. Naphthoquinone compounds have a conjugated double bond system due to their unsaturated ketone structure, and can form a color system when electron-donating conjugate groups are attached to their molecules. [0003] In general, reactive disperse dyes have a large proportion of azo and anthraquinone in the structure of their color bodies. In addition, there are triarylmethane, azine, indigo, quinoline, phthalocyanine, xanthene and nitroimines, etc. Various hair color bodies. However, there is no domestic report about n...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09B62/51C09B67/38D06P1/18D06P1/384D06P3/85
Inventor 杨福良陈小勇屠国锋
Owner JIANGSU JIHUA CHEMICAL CO LTD