Ink jet inks containing polyacrylamides

Details Ink jet inks containing polyacrylamides Ink jet inks containing polyacrylamides

1997-10-01

1998-12-22

Szekely, Peter A.

Coating processes

Nonuniform coating

Applying superposed diverse coatings or coating a coated base

427288, 427411, B05D 136, B05D 506, B05D 704

Patent

active

058515909

ABSTRACT:
Ink jet ink compositions containing an aqueous carrier medium, an aqueous carrier medium insoluble colorant, a structured polymeric dispersant and a film-forming polyacrylamide polymer having a weight average molecular weight of 500-100,000 exhibit reduced film cracking, rapid drying, excellent image definition, are storage stable and have excellent decap properties and, when used in combination with a differently colored ink, result in reduced bleed in multi-colored printed elements.

REFERENCES:
patent: 3931432 (1976-01-01), Butters et al.
patent: 4163738 (1979-08-01), Corwin
patent: 4425469 (1984-01-01), Emmons et al.
patent: 5085698 (1992-02-01), Ma et al.

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