Silver halide photographic material

Details Silver halide photographic material Silver halide photographic material

1989-10-31

1991-08-20

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430574, G03C 102

Patent

active

050413660

ABSTRACT:
A silver halide photographic material in which at least one silver halide emulsion layer coated onto a base support has been subjected to supersensitization by the combination of at least one symmetrical carbocyanine dye having two symmetrical heterocyclic structures, at least one other symmetrical carbocyanine dye having two symmetrical heterocyclic structures, and at least one asymmetrical carbocyanine dye having either one of the two heterocyclic structures in the first symmetrical carbocyanine dye and either one of the two heterocyclic structures in the second symmetrical carbocyanine dye. This photographic material has high spectral sensitivity and good storage stability since it is resistant to desensitization due to desorption of spectral sensitizers from silver halides.

REFERENCES:
patent: 4571380 (1986-02-01), Noguchi et al.
patent: 4594317 (1986-06-01), Sasaki et al.
patent: 4701405 (1987-10-01), Takiguchi et al.

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