Silver halide photographic material
AssigneeFuji Photo Film Co., Ltd.
InventorsTetsuo Nakamura, Ryuji Abe, Takanori Hioki
Life of this patent
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Abstract
A silver halide photographic material is disclosed which contains at least one compound represented by the following formula (I) and at least one dye having the absorption maximum in a methanol solution at from 510 to 535 nm: ##STR1## wherein R.sup.1 and R.sup.2 each represents an alkyl group; Y represents an aryl group or a heterocyclic group; V.sup.1, V.sup.2, V.sup.3 and V.sup.4 each represents a hydrogen atom, a halogen atom, an alkyl group, an alkoxyl group, a hydroxyl group, an alkylthio group, a mercapto group, a cyano group, an acyl group, a carboxyl group, or an alkoxycarbonyl group; X.sup.1 represents a counter ion; and m.sup.1 represents a number of 0 or more necessary for neutralizing a charge in the molecule.
Claims6
A color silver halide photographic material which comprises at least one compound represented by the following formula (I) in a green sensitive silver-halide emulsion layer and at least one sensitizing dye having an absorption maximum in a methanol solution at from 510 to 535 nm in the same green sensitive silver-halide emulsion layer and having a structure represented by the following formula (III), (IV) or (V):
- ##STR30## wherein R.sup.1 and R.sup.2 each represents an alkyl group;
- Y represents an aryl group or a heterocyclic group;
- V.sup.1, V.sup.2, V.sup.3 and V.sup.4 each represents a hydrogen atom, a halogen atom, an alkyl group, an alkoxyl group, a hydroxyl group, an alkylthio group, a mercapto group, a cyano group, an acyl group, a carboxyl group, or an alkoxycarbonyl group;
- X.sup.1 represents a counter ion;
- and m.sup.1 represents a number of 0 or more necessary for neutralizing a charge in the molecule;
- ##STR31## wherein R.sup.31 and R.sup.32 each represents an alkyl group;
- V.sup.31, V.sup.32, V.sup.33, V.sup.34, V.sup.35, V.sup.36, V.sup.37 and V.sup.38 each represents a hydrogen atom or a substituent;
- Z.sup.3 represents a hydrogen atom, a methyl group or an ethyl group;
- X.sup.3 represents a counter ion;
- and m.sup.3 represents a number of 0 or more necessary for neutralizing a charge in the molecule;
- ##STR32## wherein R.sup.41 and R.sup.42 each represents an alkyl group;
- V.sup.41, V.sup.42, V.sup.43, V.sup.44, V.sup.45, V.sup.46, V.sup.47 and V.sup.48 each represents a hydrogen atom or a substituent provided that any one of the combinations of V.sup.41 and V.sup.42, V.sup.42 and V.sup.43, and V.sup.43 and V.sup.44 link to each other to form a benzo condensed ring, and any one of the combinations of V.sup.45 and V.sup.46, V.sup.46 and V.sup.47 and V.sup.47 and V.sup.48 link to each other to form a benzo condensed ring;
- Z.sup.4 represents a hydrogen atom, a methyl group or an ethyl group:
- X.sup.4 represents a counter ion;
- and m.sup.4 represents a number of 0 or more necessary for neutralizing a charge in the molecule;
- ##STR33## wherein R.sup.51, R.sup.52, R.sup.53 and R.sup.54 each represents an alkyl group;
- V.sup.51, V.sup.52, V.sup.53, V.sup.54, V.sup.55, V.sup.56, V.sup.57 and V.sup.58 each represents a hydrogen atom or a substituent;
- Z.sup.5 represents a hydrogen atom a methyl group or an ethyl group:
- X.sup.5 represents a counter ion;
- and m.sup.5 represents a number of 0 or more necessary for neutralizing a charge in the molecule.
Dependencies are inferred from the claim text.