Diffusion transfer photographic film unit

Details Diffusion transfer photographic film unit Diffusion transfer photographic film unit

1989-04-05

1990-09-04

Schilling, Richard L.

Radiation imagery chemistry: process, composition, or product th

Transfer procedure between image and image layer, image...

Diffusion transfer process, element, or identified image...

430262, 430263, G03C 554, G03C 190

Patent

active

049544195

ABSTRACT:
A diffusion transfer photographic film unit comprising a support having thereon outwardly from said support (a) a dye image receiving layer; (b) a first peeling layer containing a copolymer of at least (i) an ethylenically unsaturated monomer containing at least one hydrocarbon group containing from 7 to 18 carbon atoms, and (ii) an ethylenically unsaturated monomer, the homopolymer of which is soluble in water or an aqueous alkaline solution; (c) a second peeling layer containing a cellulose ester; and (d) a light-sensitive silver halide emulsion layer containing a light-sensitive silver halide and a dye image forming substance. The diffusion transfer photograph produced using the unit of the invention has stable peeling properties, is not sticky, and is excellent in scratch resistance.

REFERENCES:
patent: 4366227 (1982-12-01), Berger et al.
patent: 4401746 (1983-08-01), Pfingston
patent: 4629677 (1986-12-01), Katoh

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