Silver halide photographic materials

Details Silver halide photographic materials Silver halide photographic materials

G - Physics

03

C

96/85

G03C 1/06 (2006.01) G03C 1/015 (2006.01) G03C 1/09 (2006.01) G03C 1/26 (2006.01) G03C 1/34 (2006.01) G03C 7/30 (2006.01)

Patent

CA 1333966

A silver halide photographic material comprising at least one photosensitive emulsion layer contains silver halide grains on a support. In the silver halide photo- graphic material, (1) the silver halide grains are prepared in the presence of iridium compounds, (2) the silver halide grains consist of silver chlorobromide which is essentially free of silver iodide, (3) at least 90 mol% of all silver halide from which the silver halide grains are made is silver chloride, (4) the silver halide grains have localized phase in which the silver bromide content exceeds at least 20 mol%, (5) the localized phase is precipitated together with at least 50% of all the iridium which is added during the preparation of the silver halide grains, and (6) the surface of the silver halide grains is chemically sensitized to the extent that the grains are essentially of the surface latent image type.

580335

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