Silver halide black and white photographic lightsensitive materi

Details Silver halide black and white photographic lightsensitive materi Silver halide black and white photographic lightsensitive materi

1995-08-29

1996-10-01

Letscher, Geraldine

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430502, 430496, G03C 1005, G03C 1494

Patent

active

055610382

ABSTRACT:
A silver halide black and white photographic light sensitive material comprising a support having thereon at least two silver halide emulsion layers, a first silver halide emulsion layer being provided on a second silver halide emulsion layer, wherein the first silver halide emulsion layer comprises silver halide tabular grains containing 50 mol % or more chloride and having an average aspect ratio of 3 or more, the second silver halide emulsion layer comprising silver bromide grains or silver iodobromide grains containing 2 mol % or less iodide, and a swelling ratio of the total hydrophilic colloidal layers being 200% or less.

REFERENCES:
patent: 3057723 (1962-10-01), Jeffreys et al.
patent: 3396029 (1968-08-01), Himmelmann et al.
patent: 4161407 (1979-07-01), Campbell
patent: 4399215 (1983-08-01), Wey
patent: 4826757 (1989-05-01), Yamada et al.
patent: 5424178 (1995-06-01), Tsuzuki

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