Ink jet ink with improved reliability

Details Ink jet ink with improved reliability Ink jet ink with improved reliability

2005-03-08

2005-03-08

Klemanski, Helene (Department: 1755)

Compositions: coating or plastic

Coating or plastic compositions

Marking

C106S031480, C106S031490, C106S031520, C106S031600

Reexamination Certificate

active

06863719

ABSTRACT:
An ink composition comprising: a self-dispersing carbon black, a binder, a stabilizing dye comprising at least as many groups comprising CO2H or COSH as groups comprising SO3H, and an aqueous vehicle. The stabilizing dye can improve the reliability and performance of the ink composition. The addition of the stabilizing dye can reduce or prevent the formation of material that blocks the printhead vias and throats as a result of the presence of a binder in the ink. The ink composition can reduce the amount of maintenance needed to retain all of a printhead's nozzles through the life of the printhead.

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