Water-based inks for ink-jet printing

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

2007-11-06

2007-11-06

Cain, Edward J. (Department: 1714)

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

Synthetic resins

Processes of preparing a desired or intentional composition...

C523S161000

Reexamination Certificate

active

11190857

ABSTRACT:
There are provided a water dispersion for ink-jet printing comprising colorant-containing water-insoluble graft polymer particles in which the water-insoluble graft polymer contains a main chain which is a polymer chain containing a constitutional unit derived from a salt-forming group-containing monomer (a) and a constitutional unit derived from an aromatic ring-containing (meth)acrylate monomer (b), and a side chain which is a polymer chain containing a constitutional unit derived from a hydrophobic monomer (c); a water-based ink for ink-jet printing using the water dispersion; and an ink-jet printing method using the water-based ink. In accordance with the present invention, printed images or characters formed on a coated paper are excellent in gloss, image clarity and image clarity property including both of the image clarity and the gloss, and printed images or characters formed on an ordinary paper exhibit a high print density.

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