Water-based inks for ink-jet printing

Details Water-based inks for ink-jet printing Water-based inks for ink-jet printing

2011-03-22

2011-03-22

Martin, Laura E (Department: 2853)

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

C106S031130

Reexamination Certificate

active

07909446

ABSTRACT:
There are provided a water dispersion for ink-jet printing which contains a water dispersion of particles of a vinyl polymer or a polyester-based polymer which contain a colorant (B), and a water-insoluble organic compound (A) except for aliphatic acid derivatives; a water-based ink containing the water dispersion; a print obtainable by printing images or characters with the water-based ink; and a process for producing the water dispersion. Also, there are provided an ink set for ink-jet printing containing two or more kinds of inks having different colors from each other wherein the inks each contain a water dispersion of particles of a vinyl polymer or a polyester-based polymer which contain a colorant (B), and a water-insoluble organic compound (A) except for aliphatic acid derivatives; and a process for producing a print using the ink set. The water-based ink can provide multi-order color images or composite black images which exhibits a high optical density and is excellent in gloss and image clarity.

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