Patent ID: 7744205

Claim:
An inkjet ink system, comprising: an anionic jettable ink; and a cationic fixer fluid; in which said anionic jettable ink includes between 0 and 4% styrene-acrylic or acrylic binder having an acid number below 250, between 0.3 and 10% latex binder having a plurality of particles with a mean particle size between approximately 100 and 300 nm and a glass transition temperature between −20 and +100° C., between 1 and 6% anionic colorant, between 1 and 40% solvent with a vapor pressure less than 0.01 mm Hg at 25° C., and water; in which said cationic fixer fluid includes a crashing agent and a vehicle, and in which said plurality of latex binder particles include surface acid groups.