BIS-AZO COMPOUND AND METHOD FOR DYEING FIBER BY USING SAME

Title:

BIS-AZO COMPOUND AND METHOD FOR DYEING FIBER BY USING SAME

Document Type and Number:

Japanese Patent JPS58168660

Kind Code:

A

Abstract:

NEW MATERIAL:Bis-azo compounds of formulaIwherein R1 is H, cyano, carbamoyl, sulfoalkyl; R2 is H, sulfo; X1, X2 are each H, Cl, methyl, methoxy, carboxyl, sulfo; Y is -CH=CH2, -CH2CH2Z; Z is halogen, -OSO3H, -OPO3H2; n is 1W4.

USE: Reactive dyes which dye natural or regenerated cellulosic fibers such as cotton, flax and viscose rayon reddish yellow with excellent fastness to chlorine, perspiration and sunlight.

PREPARATION: 2,5-Diaminobenzenesulfonic acid or 2,5-diaminobenzene-1,4-disulfonic acid is condensed with cyanuric chloride. The condensate is diazotized and then coupled with a pyridone derivative of formula II. Then the product is condensed with an aniline compd. of formula III to obtain the bis-azo compd. of formulaI.

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JPS5295741	1 22COBALT COMPLEXXDISAZO DYESTUFFS AND PROCESS FOR MANUFACTURE THEREOF AND USE THEREOF FOR DYEING NATURAL AND SYNTHETIC POLYAMIDE FIBERS
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Inventors:

SHIMIZU YASUTAKA
HARADA NAOKI
TEZUKA YASUO

Application Number:

JP5338282A

Publication Date:

October 05, 1983

Filing Date:

March 30, 1982

Export Citation:

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Assignee:

SUMITOMO CHEMICAL CO

International Classes:

C09B62/513; C09B62/09; D06P3/66; (IPC1-7): C09B62/09; C09B62/513

Attorney, Agent or Firm:

Mitsuhiro Moroishi (1 person outside)

Previous Patent: JPS58168659

Next Patent: PRODUCTION OF PHTHALOCYANINE PIGMENT