Pigmented ink set and process for alleviating bleed in printed e

Details Pigmented ink set and process for alleviating bleed in printed e Pigmented ink set and process for alleviating bleed in printed e

1996-08-30

1998-02-03

Klemanski, Helene

Compositions: coating or plastic

Coating or plastic compositions

Marking

106 3186, 106 3187, C09D 1102

Patent

active

057139938

ABSTRACT:
Bleed between two adjacent pigmented inks on a printing medium is reduced. The first ink has at least one neutralized carboxylic acid group, neutralized amine, or a quaternized amine group; and the second ink contains a polymeric dispersant having at least one sulfonate or phosphonate group, and a carboxylic acid additive having a pKa of up to 3.5.

REFERENCES:
patent: 5091005 (1992-02-01), Mueller et al.
patent: 5116409 (1992-05-01), Moffatt
patent: 5181045 (1993-01-01), Shields et al.
patent: 5231131 (1993-07-01), Chu et al.
patent: 5518534 (1996-05-01), Pearlstine et al.
patent: 5519085 (1996-05-01), Ma et al.
patent: 5531816 (1996-07-01), Wickramanayake
patent: 5626655 (1997-05-01), Pawlowski et al.

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