Color diffusion transfer photographic film unit

Radiation imagery chemistry: process – composition – or product th – Transfer procedure between image and image layer – image... – Diffusion transfer process – element – or identified image...

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430212, 430215, 430220, 430236, 430237, G03C 554

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active

048392570

ABSTRACT:
A color diffusion transfer photographic film unit and a method for forming image therewith which comprises a photosensitive sheet comprising a light-reflective support having disposed thereon in order outwardly from the support (a) a layer having neutralizing function, (b) a dye image-receiving layer, (c) a separating layer and (d) at least one light-sensitive emulsion layer comprising a light-sensitive silver halide, the light-sensitive emulsion layer being associated with at least one dye image-forming material; a transparent cover sheet superposed on the outermost layer of the photosensitive sheet; and rupturable storage means for providing a developing solution substantially opaque to light between the light-sensitive emulsion layer and the transparent cover sheet; provided that at least one of the light-reflective support and layer thereon disposed on the side of the light-sensitive emulsion layer opposite the transparent cover sheet is substantially opaque to light.

REFERENCES:
patent: 3445228 (1969-05-01), Beavers et al.
patent: 3658524 (1972-04-01), Piesach
patent: 3730718 (1973-05-01), Danhauser
patent: 4377632 (1983-03-01), Pfingston
patent: 4401746 (1983-08-01), Pfingston
patent: 4459346 (1984-07-01), Bishop et al.
patent: 4499174 (1985-02-01), Bishop et al.
patent: 4606992 (1986-08-01), Bishop
"Image Transfer Material", Research Disclosure, No. 15513, Mar. 1977.

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