Photographic printing paper support

Details Photographic printing paper support Photographic printing paper support

1993-12-20

1994-11-01

Brammer, Jack P.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Identified backing or protective layer containing

430532, 430537, 428328, 428330, 428332, 428511, G03C 178, B32B 516

Patent

active

053607074

ABSTRACT:
Disclosed is a photographic printing paper support comprising a waterproof substrate constituted of raw paper and polyolefin resin coats covering the both surfaces thereof, which further has on the back side of the substrate a backing layer containing at least (a) colloidal silica, (b) an aqueous dispersion of a styrene-acrylate copolymer prepared by the polymerization in the presence of a water-soluble high-molecular compound, (c) at least one substance selected from a group consisting of carboxyl or sulfo group-containing water-soluble high-molecular compounds, the metal salts thereof and hydrophilic organic high-molecular colloidal substances and (d) an aqueous dispersion of a polyolefin resin having a melting point below 100.degree.C.

REFERENCES:
patent: 4220471 (1980-09-01), Data et al.
patent: 4675295 (1987-06-01), von Meer et al.
patent: 4705746 (1987-11-01), Tamagawa et al.
patent: 4858773 (1990-01-01), Dethlefs et al.
patent: 5156707 (1992-10-01), Kato et al.

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