Water base ink composition

Details Water base ink composition Water base ink composition

1992-12-28

1994-08-02

Michl, Paul R.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524549, 524555, 523160, 523161, C08L 3308, C09D 1116

Patent

active

053346491

ABSTRACT:
A water base ink composition which comprises water as a solvent, a carboxyl group containing styrenic resin having an average molecular weight of 1500-30000 and an acid value of 150-300, in an amount of 2-20% by weight, a basic dye in an amount of 0.1-80 parts by weight in relation to 100 parts by weight of the styrenic resin, and an alkali which is volatile at normal temperatures in such an amount as adjusts the ink composition at a pH in the range of 6 to 8.5.

REFERENCES:
patent: 4013607 (1977-03-01), Dwyer et al.
patent: 4260531 (1981-04-01), Wachtel et al.
patent: 4686260 (1987-08-01), Lindemann et al.
patent: 5004763 (1991-04-01), Imagawa

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