Halftone gravure printing inks containing pyridone azo dyestuffs

Details Halftone gravure printing inks containing pyridone azo dyestuffs Halftone gravure printing inks containing pyridone azo dyestuffs

1986-08-04

1988-04-19

Higel, Floyd D.

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

Organic compounds

Azo

534573, 534595, 534755, 534756, 534758, 534759, 534772, 106 22, 106 23, C09B 2942, C09B 3312, C09B 4330, C09D 1102

Patent

active

047390425

ABSTRACT:
Halftone gravure printing inks containing pyridone azo dyestuffs wherein the dyestuffs are obtained by reacting a pyridone dyestuff of the formula ##STR1## with a dicarboxylic or polycarboxylic acid or a pyridone azo dyestuff of the formula ##STR2## with a dihydroxy or polyhydroxy compound.

REFERENCES:
patent: 4329283 (1982-05-01), Reel et al.

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