Silver halide photographic materials

Details Silver halide photographic materials Silver halide photographic materials

1989-11-28

1991-08-06

Le, Hoa Van

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430264, 430567, 430600, 430603, 430607, 430611, G03C 120

Patent

active

050377337

ABSTRACT:
A silver halide photosensitive material comprising a support having thereon at least one silver halide emulsion layer containing silver halide grains. These silver halide grains are obtained by subjecting the surface of silver halide grains to halogen conversion. These silver halide grains are essentially silver iodide free silver chlorobromide. They have a plurality of internal layers of different halogen compositions and contain at least one bridged pentamethine cyanine dye compound represented by the general formula (I) or (I'): ##STR1## and one compound represented by general formula (II): ##STR2## The variables in the above formulas are defined in the instant specification.

REFERENCES:
patent: 4618570 (1986-10-01), Kadowaki et al.
patent: 4849324 (1989-07-01), Aida et al.
patent: 4912029 (1990-03-01), Asami

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