Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Two or more radiation-sensitive layers containing other than...
Patent
1985-09-05
1987-03-31
Schilling, Richard L.
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Two or more radiation-sensitive layers containing other than...
430230, G03C 554, G03C 146
Patent
active
046542973
ABSTRACT:
This invention provides a high sensitivity photosensitive element used for a silver salt diffusion transfer process and capable of producing an image having fine graininess and good quality. The photosensitive element comprises a photosensitive emulsion layer containing silver halide grains having small grain size (S layer) and another photosensitive emulsion layer containing silver halide grains having large grain size (L layer), the S layer being positioned toward the exposure side of the L layer, and the amount of silver halide contained in the S layer, the amount thereof contained in the L layer and the total amount thereof being 60-5 wt %, 40-95 wt %, and no less than 80 wt %, respectively, relative to the total amount of silver halide contained in the photosensitive element.
REFERENCES:
patent: 2373732 (1945-04-01), Wolfson
patent: 3353957 (1967-11-01), Blake et al.
patent: 3737317 (1973-06-01), Nicholas et al.
patent: 3846135 (1974-11-01), Hellmig et al.
patent: 4401753 (1983-08-01), Vaes et al.
Fuji Photo Film Co. , Ltd.
Schilling Richard L.
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