Diffusion transfer film system with protective layer of copper s

Details Diffusion transfer film system with protective layer of copper s Diffusion transfer film system with protective layer of copper s

1982-07-22

1983-05-31

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...

430227, 430231, 430244, 430245, 430262, 430263, G03C 554, G03C 148, G03C 700

Patent

active

043861512

ABSTRACT:
A silver diffusion transfer film unit which comprises, in order, a support, a silver precipitating layer, a protective layer comprising chitosan having a copper salt and a polyol selected from the group consisting of glycerol, sorbitol, polyvinyl alcohol, inositol, ethylene glycol, propylene glycol and hydroxyethyl cellulose disposed therein, a release layer, and a photosensitive silver halide layer. In a particularly preferred embodiment, the film unit is an additive color diffusion transfer film unit.

REFERENCES:
patent: 3674482 (1972-07-01), Hablerin
patent: 4056392 (1977-11-01), Scott

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