Trisazo dye, and aqueous ink composition containing the same

Details Trisazo dye, and aqueous ink composition containing the same Trisazo dye, and aqueous ink composition containing the same

1994-09-28

1996-01-23

Ramsuer, Robert W.

Organic compounds -- part of the class 532-570 series

Organic compounds

Azo

534680, 534685, 534728, 534810, 534815, 106 22K, C09B 3546, C09D 1100

Patent

active

054866014

ABSTRACT:
Disclosed is a trisazo dye represented by the formula: ##STR1## wherein R.sup.1 and R.sup.2 independently represent a substituted amino group which is substituted with hydrogen, a hydroxyl group, a carboxyl group, an amino group, an alkyl group having 1 to 4 carbon atoms, a hydroxyalkyl group or an acyl group, or an alkyl group having 1 to 4 carbon atoms or an alkoxy group having 1 to 4 carbon atoms; and R.sup.3 is hydrogen, an alkyl or alkoxy group having 1 to 6 carbon atoms; provided that R.sup.1 and R.sup.2 are not amino groups or substituted amino groups simultaneously.
A process for producing the trisazo dye and an aqueous ink composition containing the trisazo dye are also disclosed.

REFERENCES:
patent: 3915953 (1975-10-01), Mori et al.
patent: 5340929 (1994-08-01), Ono et al.

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