Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Two or more radiation-sensitive layers containing other than...
Patent
1995-12-28
1997-11-25
Letscher, Geraldine
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Two or more radiation-sensitive layers containing other than...
430506, 430509, 430543, 430544, 430551, 430567, 430379, G03C 146
Patent
active
056911246
ABSTRACT:
This invention provides color silver halide photographic element comprising a red light-sensitive, cyan dye-forming unit comprising a photosensitive silver halide emulsion layer and an image dye-forming coupler; a green light-sensitive, magenta dye-forming unit comprising a photosensitive silver halide emulsion layer and an image dye-forming coupler; and a blue light-sensitive, yellow dye-forming unit comprising a photosensitive silver halide emulsion layer and an image dye-forming coupler; the photographic element further comprising a first layer and a second layer, the second layer being a layer which provides a site of development for solution physical development; wherein at least one of the dye-forming units comprises two or more emulsion layers spectrally sensitized to the same region of the visible spectrum, but exhibiting different photographic sensitivities and wherein the first layer is positioned adjacent to the layer containing the slowest emulsion of said dye-forming unit and between the layer containing the slowest emulsion and the second layer. Preferably the photographic element is a color reversal photographic element.
REFERENCES:
patent: 4626498 (1986-12-01), Shuoto et al.
patent: 5298369 (1994-03-01), Munshi et al.
patent: 5378591 (1995-01-01), Droin et al.
patent: 5391469 (1995-02-01), Dickerson
patent: 5460932 (1995-10-01), Chen et al.
patent: 5545513 (1996-08-01), Edwards
patent: 5576158 (1996-11-01), Ford et al.
Kim Sang Hyung
Pugh Spencer Alan
Eastman Kodak Company
Letscher Geraldine
Roberts Sarah Meeks
Rosenstein Arthur H.
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