Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Silver compound sensitizer containing
Patent
1989-06-01
1991-04-02
Le, Hoa Van
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Silver compound sensitizer containing
430567, 430607, 430608, G03C 108, G03C 134
Patent
active
050046802
ABSTRACT:
A silver halide photographic light-sensitive material is disclosed which has a high speed with a low fog and is improved on the long-term preservability. The light-sensitive material comprises a support having thereon a photographic component layer including at least one silver halide emulsion layer, in which the silver halide emulsion layer comprises silver halide grains, each of which are comprised of two or more phases different in the silver iodide content, wherein the average silver iodide content of the grain is higher than the silver iodide content of the external phase of the grain, and to at least one layer included the photographic component layer is added elementary sulfur in a step of manufacturing process of the silver halide photographic light-sensitive material.
REFERENCES:
patent: 1898512 (1933-02-01), Wendt
patent: 4668614 (1987-05-01), Takada
patent: 4728602 (1988-03-01), Shibahara et al.
patent: 4762778 (1988-08-01), Yamazaki et al.
patent: 4835095 (1989-05-01), Ohashi et al.
patent: 4863846 (1989-09-01), Tanaka et al.
Kumashiro Kenji
Takiguchi Hideki
Yagi Toshihiko
Konica Corporation
Le Hoa Van
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