Pigmented inks having different particle sizes and/or...

Details Pigmented inks having different particle sizes and/or... Pigmented inks having different particle sizes and/or...

2007-05-22

2007-05-22

Lorengo, J. A. (Department: 1755)

Compositions: coating or plastic

Coating or plastic compositions

Marking

C106S031650

Reexamination Certificate

active

10823015

ABSTRACT:
An inkjet ink that provides improved print quality on diverse types of print media. The inkjet ink includes a first pigment dispersion and a second pigment dispersion in which the pigments are formulated to segregate when deposited on a glossy print medium. Each of the pigments in the first and second pigment dispersions may have at least one of a different particle size, a different particle morphology, and a different manner of dispersion. An inkjet ink that provides improved print quality on a print medium having chemically and physically distinct domains is also disclosed.

REFERENCES:
patent: 6143807 (2000-11-01), Lin et al.
patent: 6387168 (2002-05-01), Koitabashi et al.
patent: 6440203 (2002-08-01), Kato
patent: 6503317 (2003-01-01), Ortalano et al.
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patent: 6534128 (2003-03-01), Carlson et al.
patent: 6537358 (2003-03-01), Horiuchi et al.
patent: 6540344 (2003-04-01), Kashiwazaki et al.
patent: 2004/0020406 (2004-02-01), Kato
patent: 1 357 157 (2003-10-01), None

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