Print media products for generating high quality, water-fast...

Details Print media products for generating high quality, water-fast... Print media products for generating high quality, water-fast...

D - Textiles, Paper

21

H

D21H 19/44 (2006.01) B32B 29/00 (2006.01) B41M 5/00 (2006.01) B41M 5/52 (2006.01) D21H 19/72 (2006.01) D21H 21/14 (2006.01) D21H 27/00 (2006.01)

Patent

CA 2389629

Ink-receiving print media products (10, 100, 200) having multiple capabilities including (A) minimal drying time; (B) improved smear-fastness; (C) a high level of water-fastness; (D) the ability to generate high-definition images; and (E) excellent ink compatibility. The media products (10, 100, 200) have at least one ink- receiving layer (30) on a substrate (12) (e.g. paper pre-coated with one or more binders and/or pigments). The ink-receiving layer (30) includes a pigment (boehmite, pseudo- boehmite, or mixtures thereof) optimally combined with a special binder blend [polyvinyl alcohol, a polyvinyl acetate-ethylene) copolymer, and a polyvinyl pyrrolidone-vinyl acetate) copolymer]. Also included is a special dye fixative (namely, a cationic emulsion polymer) which provides enhanced water-fastness. This fixative is of a particular type (a quaternary amine) that also allows high pigment levels to be employed (at least about 65% by weight) which further promotes the foregoing benefits.

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