Ink-jet ink, ink set, method for ink-jet printing, ink-jet...

Details Ink-jet ink, ink set, method for ink-jet printing, ink-jet... Ink-jet ink, ink set, method for ink-jet printing, ink-jet...

2005-03-01

2005-03-01

Meier, Stephen D. (Department: 2853)

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

C347S095000, C106S031130, C106S031600

Reexamination Certificate

active

06860593

ABSTRACT:
An ink which includes a first pigment, a second pigment, a polymer dispersant and an aqueous medium; wherein the first pigment is a self-dispersing pigment having on its surface at least one anionic group bonded to the surface directly or via an atomic group, the second pigment is dispersed in the aqueous medium by the polymer dispersant, and the polymer dispersant contains benzylmethacrylate as a monomer unit. Diffusion of this ink in the printing medium is suppressed in the cross-sectional direction but not horizontal direction. Thus, the ink can form an ink dot that has a proper dot size, uniform and high density in the dot, with little feathering or blur.

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