Negative type silver halide photographic material and method for forming image using the same

Claim 1

A negative type silver halide photographic material which comprises a support having provided thereon at least one silver halide emulsion layer containing silver halide grains sensitized with gold and sulfur sensitizers, said emulsion layer or at least one other hydrophilic colloid layer containing at least one high contrast-imparting hydrazine derivative and at least one compound represented by the following general formula (I): ##STR9## wherein Z represents N or C--X wherein X represents a substituted or unsubstituted alkyl or aryl group, Y represents a substituted or unsubstituted alkyl or aryl group, and M represents a hydrogen atom, a metallic atom, or ammonium which may be substituted; wherein said hydrazine derivative is represented by the general formula (II): ##STR10## wherein A represents a substituted or unsubstituted aliphatic or aromatic group, B represents a formyl group, an acyl group, an alkysulfonyl group, an arylsulfonyl group, an arylsulfinyl group, a carbomoyl group, a sulfomoyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, a sulfinamoyl group, an alkoxysulfonyl group, a thioacyl group, a thiocarbamoyl group, or a heterocyclic group; and both R 0 and R 1 represents hydrogen atoms or one of R 0 and R 1 represents a hydrogen atom and the other represents a substituted or unsubstituted alkylsulfonyl group, a substituted or unsubstituted arylsulfonyl group, or a substituted or unsubstituted acyl group; and B, R 1 and the nitrogen atom to which they are bonded may form a partial structure --N═C< of hydrazone.

Claim 10

A method of forming a superhigh contrast negative image comprising developing an imagewise exposed silver halide photographic material with a developing solution containing sulfite ions in an amount of at least about 0.15 mol per liter and having a pH of 10.5 to 12.3, wherein said silver halide photographic material comprises a support having provided thereon at least one silver halide emulsion layer containing a silver halide which has been subjected to gold sensitization and sulfur sensitization, and said silver halide emulsion layer or at least one other hydrophilic colloid layer contains at least one high contrast-imparting hydrazine derivative and at least one compound represented by the following general formula (I): ##STR11## wherein Z represents N or C--X wherein X represents a substituted or unsubstituted alkyl or aryl group, Y represents a substituted or unsubstituted alkyl or aryl group, and M represents a hydrogen atom, a metallic atom, or ammonium which may be substituted; wherein said hydrazine derivative is represented by the general formula (II): ##STR12## wherein A represents a substituted or unsubstituted aliphatic or aromatic group, B represents a formyl group, an acyl group, an alkysulfonyl group, an arylsulfonyl 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; and both R 0 and R 1 represents hydrogen atoms or one of R 0 and R 1 represents a hydrogen atom and the other represents a substituted or unsubstituted alkylsulfonyl group, a substituted or unsubstituted arylsulfonyl group, or a substituted or unsubstituted acyl group; and B, R 1 and the nitrogen atom to which they are bonded may form a partial structure --N═C< of hydrazone.

Claim 11

A method of forming a superhigh contrast negative image comprising developing an imagewise exposed silver halide photographic material with a developing solution containing sulfite ions in an amount of at least about 0.15 mol per liter and having a pH of 10.5 to 12.3, wherein said silver halide photographic material comprises a support having provided thereon at least one silver halide emulsion layer containing a silver halide which has been subjected to gold sensitization and sulfur sensitization, and said silver halide emulsion layer or at least one other hydrophilic colloid layer contains at least one high contrast-imparting hydrazine derivative and at least one compound represented by the following general formula (I): ##STR11## wherein Z represents N or C--X wherein X represents a substituted or unsubstituted alkyl or aryl group, Y represents a substituted or unsubstituted alkyl or aryl group, and M represents a hydrogen atom, a metallic atom, or ammonium which may be substituted; wherein said hydrazine derivative is represented by the general formula (II): ##STR12## wherein A represents a substituted or unsubstituted aliphatic or aromatic group, B represents a formyl group, an acyl group, an alkysulfonyl group, an arylsulfonyl 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; and both R 0 and R 1 represents hydrogen atoms or one of R 0 and R 1 represents a hydrogen atom and the other represents a substituted or unsubstituted alkylsulfonyl group, a substituted or unsubstituted arylsulfonyl group, or a substituted or unsubstituted acyl group; and B, R 1 and the nitrogen atom to which they are bonded may form a partial structure --N═C< of hydrazone.