Silver halide photographic materials.

摘要

A silver halide photographic material comprising a support having at least one silver halide emulsion layer containing substantially surface latent image type silver halide grains, said emulsion layer or at least one hydrophilic colloid layer adjacent to the emulsion layer containing a compound represented by general formula (I):
<Chemistry id="chema01" num="0001"><Image id="ia01" he="15" wi="83" file="IMGA0001.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>wherein Z represents an atomic group necessary for forming a monocyclic or condensed heterocyclic ring composed of a carbon atom or carbon atoms and a nitrogen atom or nitrogen atoms; L, represents a divalent organic group; m represents 0 or 1; L<Sub>2</Sub> represents -CONR-, -NRCO-, -SO<Sub>2</Sub>NR-, NRS0<Sub>2</Sub>, -OCO-, -COO-, -S-, -NR-, -CO-, -SO-, -S0<Sub>2</Sub>-, -OCOO-, -NRCONR'-, -NRCOO-, -OCONR-, or -NRS0<Sub>2</Sub>NR'- (wherein R and R' each represents a hydrogen atom, an alkyl group, or an aryl group); and A represents a residue formed by removing one hydrogen atom from Ar of the compound represented by the following general formula (II) or a residue formed by removing M from the compound of general formula (II):
<Chemistry id="chema02" num="0002"><Image id="ia02" he="13" wi="86" file="IMGA0002.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>wherein Ar represents an aryl group; M represents a formyl group, an acyl group, an alkylsulfonyl group, an arylsulfonyl group, an alkylsulfinyl group, an arylsulfinyl group, a carbamoyl group, a sulfamoyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, a sulfinamoyl group, an alkoxysulfonyl group, a thioacyl group, a thiocarbamoyl group, or a heterocyclic group; R, represents a hydrogen atom; said M, R<Sub>1</Sub> and the nitrogen atom to which M and R<Sub>1</Sub> attach may form a partial structure -N=C≺ of hydrazone; and R<Sub>o</Sub> represents a hydrogen atom, a formyl group, an acyl group, an alkoxy-carbonyl group, or an aryloxycarbonyl group. The silver halide photographic material is capable of having high contrast negative images, high sensitive negative images, and good dot images.