Process for improving dried film resistivity of carbon pigment i

Details Process for improving dried film resistivity of carbon pigment i Process for improving dried film resistivity of carbon pigment i

1996-11-06

1997-10-14

Klemanski, Helene

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 20D, C09D 1102

Patent

active

056767447

ABSTRACT:
An ink jet ink composition comprises a liquid vehicle, a pigment, a pH adjusting component, and a chemical with a plurality of electron donating groups. The chemical with a plurality of electron donating groups comprises a chemical with at least three electron donating groups, wherein the at least three electron donating groups are situated in close proximity to provide high dried film resistivity. With the present invention, significant improvement in dried film resistivity of carbon pigment ink jet inks is achieved, sufficient to eliminate charge lead to charge lead shorts and improve machine runnability and can, therefore, be used in ink jet printers.

REFERENCES:
patent: 5268027 (1993-12-01), Chan et al.
patent: 5302197 (1994-04-01), Wickramanayke et al.
patent: 5324349 (1994-06-01), Samno et al.
patent: 5356464 (1994-10-01), Hickman et al.
patent: 5376169 (1994-12-01), Hotomi et al.
patent: 5417747 (1995-05-01), Arata et al.
patent: 5439514 (1995-08-01), Kashiwazaki et al.

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