Water-based inks for ink-jet printing

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

2007-04-26

2011-12-27

Niland, Patrick (Department: 1762)

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

Synthetic resins

Processes of preparing a desired or intentional composition...

C347S001000, C347S095000, C347S100000, C428S357000, C428S402000, C428S402240, C428S407000, C523S161000, C523S200000, C523S205000, C523S206000, C524S306000, C524S308000, C524S310000, C524S314000

Reexamination Certificate

active

08084516

ABSTRACT:
The present invention relates to (A) a water dispersion for ink-jet printing including particles of a waster-insoluble crosslinked polymer which contain a colorant, and a water-insoluble organic compound, wherein the water-insoluble crosslinked polymer is (1) a polymer produced by crosslinking a water-insoluble polymer with a crosslinking agent; (2) a polymer produced by crosslinking 100 parts by weight of the water-insoluble polymer with 0.5 to 9.5 parts by weight of the crosslinking agent; or (3) a polymer having a weight-average segment molecular weight of from 1,400 to 20,000 as calculated from [(weigh-average molecular weight of the water-insoluble polymer)/(number of molar equivalents of the crosslinking agent to be reacted with 1 mol of the water-insoluble polymer+1)]; (B) an ink for ink-jet printing containing the above water dispersion which is excellent in gloss and storage stability; and (C) particles of the water-insoluble crosslinked polymer.

REFERENCES:
patent: 2003/0029355 (2003-02-01), Miyabayashi
patent: 2004/0176498 (2004-09-01), Ando et al.
patent: 0 673 969 (1995-09-01), None
patent: 1 059 341 (2000-12-01), None
English translation of Chinese Office Action issued on Dec. 31, 2010 in corresponding Chinese Patent Application No. 200780013545.4.

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