Silver halide color photosensitive material
AssigneeFuji Photo Film Co., Ltd.
InventorsJunichiro Hosokawa, Kohzaburoh Yamada, Yasuhiro Shimada
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Abstract
A silver halide color photosensitive material has at least one blue-sensitive silver halide emulsion layer containing a yellow coupler, at least one green-sensitive silver halide emulsion layer containing a magenta coupler, at least one red-sensitive silver halide emulsion layer containing a cyan coupler, and at least one non-lightsensitive layer, on a support. The photosensitive material contains, in at least one of the layers, a compound having a reducing group and a compound having at least three hetero atoms capable of increasing a photographic speed of the photosensitive material in comparison with the case where the material does not contain the same.
Claims14
A silver halide color photosensitive material having at least one blue-sensitive silver halide emulsion layer containing a yellow coupler, at least one green-sensitive silver halide emulsion layer containing a magenta coupler, at least one red-sensitive silver halide emulsion layer containing a cyan coupler, and at least one non-lightsensitive layer, on a support, wherein at least one of the layers contains a compound selected from the group consisting of compounds of type A and compounds of types 1 to 4, and at least one of the layers contains the following Compound (B):
- (Type A)
- a compound represented by X-Y, wherein X represents a reducing group, Y represents a split-off group, and wherein a one-electron oxide product thereof generated by one-electron-oxidation of the reducing group represented by X is capable of leaving Y to generate an X radical accompanying a subsequent cleavage reaction of X-Y bonding, and is capable of releasing another electron;
- (Type 1)
- a compound capable of undergoing a one-electron oxidation to thereby form a one-electron oxidation product thereof, wherein the one-electron oxidation product is capable of releasing further two or more electrons accompanying a subsequent bond cleavage reaction;
- (Type 2)
- a compound capable of undergoing a one-electron oxidation to thereby form a one-electron oxidation product thereof, wherein the one-electron oxidation product is capable of releasing further one electron accompanying a subsequent carbon-carbon bond cleavage reaction, and the compound having, in its molecule, two or more groups adsorptive to silver halide;
- (Type 3)
- a compound capable of undergoing a one-electron oxidation to thereby form a one-electron oxidation product thereof, wherein the one-electron oxidation product is capable of releasing further one or more electrons after going through a subsequent bond forming process;
- and
- (Type 4)
- a compound capable of undergoing a one-electron oxidation to thereby form a one-electron oxidation product thereof, wherein the one-electron oxidation product is capable of releasing further one or more electrons after going through a subsequent intramolecular ring cleavage reaction;
- and
- Compound (B)
- a compound having at least three hetero atoms, the compound capable of increasing a photographic speed of the photosensitive material in comparison with the case where the material does not contain the compound.
A silver halide color photosensitive material comprising at least one blue-sensitive silver halide emulsion layer containing an yellow coupler, at least one green-sensitive silver halide emulsion layer containing a magenta coupler, at least one red-sensitive silver halide emulsion layer containing a cyan coupler, and at least one non-lightsensitive layer, wherein
- at least one of the layers contains a compound selected from the group consisting of compounds of the type A and compounds of types 1 to 4 set forth below, and
- at least one of the layers contains a fine-grain dispersion containing an ultraviolet absorbent, the fine grains being prepared by means of emulsification by putting water into an organic solvent phase containing vinyl polymer and the ultraviolet absorbent, or putting the organic solvent phase into water:
- (Type A)
- a compound represented by X-Y, wherein X represents a reducing group, Y represents a split-off group, and wherein a one-electron oxide product thereof generated by one-electron-oxidation of the reducing group represented by X is capable of leaving Y to generate an X radical accompanying a subsequent cleavage reaction of X-Y bonding, and is capable of releasing another electron;
- (Type 1)
- a compound capable of undergoing a one-electron oxidation to thereby form a one-electron oxidation product thereof, wherein the one-electron oxidation product is capable of releasing further two or more electrons accompanying a subsequent bond cleavage reaction;
- (Type 2)
- a compound capable of undergoing a one-electron oxidation to thereby form a one-electron oxidation product thereof, wherein the one-electron oxidation product is capable of releasing further one electron accompanying a subsequent carbon-carbon bond cleavage reaction, and the compound having, in its molecule, two or more groups adsorptive to silver halide;
- (Type 3)
- a compound capable of undergoing a one-electron oxidation to thereby form a one-electron oxidation product thereof, wherein the one-electron oxidation product is capable of releasing further one or more electrons after going through a subsequent bond forming process;
- and
- (Type 4)
- a compound capable of undergoing a one-electron oxidation to thereby form a one-electron oxidation product thereof, wherein the one-electron oxidation product is capable of releasing further one or more electrons after going through a subsequent intramolecular ring cleavage reaction
A silver halide color photosensitive material comprising at least one blue-sensitive silver halide emulsion layer containing an yellow coupler, at least one green-sensitive silver halide emulsion layer containing a magenta coupler, at least one red-sensitive silver halide emulsion layer containing a cyan coupler, and at least one non-lightsensitive layer, wherein
- at least one of the layers contains a compound selected from the group consisting of compounds of type A and compounds of types 1 to 4 set forth below,
- the support is formed of polyethylene naphthalate, and
- the photosensitive material further comprising a magnetic recording layer in a back layer thereof:
- (Type A)
- a compound represented by X-Y, wherein X represents a reducing group, Y represents a split-off group, and wherein a one-electron oxide product thereof generated by one-electron-oxidation of the reducing group represented by X is capable of leaving Y to generate an X radical accompanying a subsequent cleavage reaction of X-Y bonding, and is capable of releasing another electron;
- (Type 1)
- a compound capable of undergoing a one-electron oxidation to thereby form a one-electron oxidation product thereof, wherein the one-electron oxidation product is capable of releasing further two or more electrons accompanying a subsequent bond cleavage reaction;
- (Type 2)
- a compound capable of undergoing a one-electron oxidation to thereby form a one-electron oxidation product thereof, wherein the one-electron oxidation product is capable of releasing further one electron accompanying a subsequent carbon-carbon bond cleavage reaction, and the compound having, in its molecule, two or more groups adsorptive to silver halide;
- (Type 3)
- a compound capable of undergoing a one-electron oxidation to thereby form a one-electron oxidation product thereof, wherein the one-electron oxidation product is capable of releasing further one or more electrons after going through a subsequent bond forming process;
- and
- (Type 4)
- a compound capable of undergoing a one-electron oxidation to thereby form a one-electron oxidation product thereof, wherein the one-electron oxidation product is capable of releasing further one or more electrons after going through a subsequent intramolecular ring cleavage reaction.
Dependencies are inferred from the claim text.