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    • 20. 发明专利
    • WATER SOLUBLE TRIAZO DYE
    • JPH0356569A
    • 1991-03-12
    • JP19312089
    • 1989-07-26
    • MITSUBISHI CHEM IND
    • HIBARA TOSHIO
    • C09B62/09C09B62/25C09B62/513
    • NEW MATERIAL:A compound expressed by formula I (R is H, -SO3H or -SO2W (W is -CH=CH2 or -CH2CH2OSO3H); R is H or -SO3H; X is formula II or formula III{Y is halogen or formula IV; Z is [1-3C alkoxy, (substituted)-lower- alkylamino, phenylamino or formula IV]}) and existing in a form of free acid. EXAMPLE:A compound expressed by formula V. USE:A dye capable of dyeing cellulose or nitrogen-containing fiber into naive blue based color. A dye for ink jet type printer. PREPARATION:1 mol aniline compound expressed by formula VI is diazotized and the diazotized compound is subjected to coupling reaction with 1 mol compound expressed by formula VII in water at pH 2-4 and 0-5 deg.C for 5 hr to provide a monoazo compound. On other hand, 1 mol monoazo compound expressed by formula VIII is diazotized and the diazotized compound is subjected to coupling reaction with 1 mol monoazo compound obtained in the above mentioned reaction at pH7-9 and 0-10 deg.C for 1-5 hr.