Naphthaquinone-type brown reactive disperse dye and preparation method thereof

A reactive disperse dye, naphthoquinone type technology, used in reactive dyes, dyeing methods, organic dyes, etc., to achieve excellent dyeing fastness, bright dyeing, and good dyeing synchronization.

Active Publication Date: 2014-09-10
JIANGSU JIHUA CHEMICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

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

Method used

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  • Naphthaquinone-type brown reactive disperse dye and preparation method thereof
  • Naphthaquinone-type brown reactive disperse dye and preparation method thereof
  • Naphthaquinone-type brown reactive disperse dye and preparation method thereof

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Embodiment 1

[0028] A kind of preparation method of naphthoquinone type brown reactive disperse dye, described preparation method comprises the steps:

[0029] 1. P-beta-hydroxyethyl sulfone sulfate aniline, deionized water and crushed ice are beaten in an ice bath to obtain an ice solution of p-beta-hydroxyethyl sulfone sulfate aniline, and the p-beta-hydroxyethyl sulfone sulfuric acid The molar ratio of ester aniline, deionized water and crushed ice is 1:10:10; dissolving sodium nitrite in deionized water and adding crushed ice to obtain an ice solution of sodium nitrite, the sodium nitrite, deionized water The molar ratio with crushed ice is 1.2:10:10; mix the ice solution of p-β-hydroxyethyl sulfone aniline with the ice 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] ② Add concentrated hydrochloric acid to solution I, stir at 5°C for 30 minutes, adjust the pH value to 6 to obtain solu...

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PUM

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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, belonging to the field of fine chemical dye chemistry. Background technique [0002] Naphthoquinones are a class of natural organic compounds that widely exist in nature. From the structural point of view, there are three types: 1,4-naphthoquinone, 1,2-naphthoquinone, and 2,6-naphthoquinone. Most of them are 1,4-naphthoquinone. Naphthoquinone compounds have a conjugated double bond system due to their unsaturated ketone structure, and can form a chromogenic system when they are connected with electron-donating conjugated groups in their molecules. [0003] Generally, reactive disperse dyes have a large proportion of azo and anthraquinone in their chromophore structure, in addition to triaryl methane, azine, indigo, quinoline, phthalocyanine, xanthene and nitroimine, etc. Various color bodies. And take naphthoquinone as the chromophore as acti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B62/51C09B67/38D06P1/18D06P1/384D06P3/85
Inventor 李红刘倩倩季英超王迎王秋红
Owner JIANGSU JIHUA CHEMICAL CO LTD
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