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Brown reactive biazo dyestuff and its preparation method

A disazo dye, brown reaction technology, applied in the direction of azo dyes, reactive dyes, organic dyes, etc., can solve the problems of insufficient lifting power and level dyeing, low dye purity, poor washing fastness, etc., to achieve good Effect of lifting power and level dyeing, high color fixation, good chlorine fastness

Inactive Publication Date: 2010-05-12
吴江桃源染料有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the prior art, a kind of brown reactive disazo dye is usually halogenated triazine type, phenyl ethyl sulfone sulfate type and halogenated triazine and phenyl ethyl sulfone sulfate mixed type, and the purity of the dyestuff is different. High, low color fixing rate, chlorine fastness, light fastness, perspiration-light fastness, lifting power and level dyeing are not enough, and washing fastness is poor

Method used

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  • Brown reactive biazo dyestuff and its preparation method
  • Brown reactive biazo dyestuff and its preparation method
  • Brown reactive biazo dyestuff and its preparation method

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Abstract

This invention relates to a brown reactiveness Bisazo Pigments, and its structure general formula is I, with R1,R2,R3 being hydrogen, C1-4 alkoxyl, C1-4 alkyl radical, acetamido, uramino and R4 being-CH=CH2 or -CH2CH2W(W is a radical which can be reduced by alkali), m equaling to 2,3 and n equaling to 0,1, and z being benzene or naphtalin with or without sustituent. Its preparation is that N-2-(2-ethylene sulfone sulphate) Ethylamidobenzene and halogeno-triazine are conducted ehydrohalogenation condensation reaction with molecular ratio 1:1-1.1, and then the halogeno-triazine which has been substituted and Bisazo Pigments color radical with amino are conducted condensation reaction, brown reactiveness Bisazo Pigments is produced at last.

Description

technical field The invention relates to a reactive disazo dye and a preparation method thereof, in particular to a brown reactive disazo dye and a preparation method thereof. Background technique In the prior art, a kind of brown reactive disazo dye is usually halogenated triazine type, phenyl ethyl sulfone sulfate type and halogenated triazine and phenyl ethyl sulfone sulfate mixed type, and the purity of the dyestuff is different. High, low color fixing rate, chlorine fastness, light fastness, perspiration-light fastness, lifting power and level dyeing are not enough, and the washing fastness is poor. Contents of the invention The object of the present invention is to provide a kind of brown reactive disazo dye and its preparation method, the produced dye has high fixation rate, chlorine fastness, light fastness, perspiration-light fastness, lifting power and level dyeing Good performance, good washing fastness. The technical scheme of the present invention is: a br...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09B62/533
Inventor 陈尉陆再宏庄永祥
Owner 吴江桃源染料有限公司
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