Spectrally sensitized silver halide photographic emulsion

Claim 2

A SILVER HALIDE PHOTOGRAPHIC EMULSION CONTAINING A SUPER SENSITIZING COMBINATION OF AT LEAST ONE SENSITIZING DYE REPRESENTED BY THE FOLLOWING GENERAL FORMULA (1)

Claim 3

The silver halide photographic emulsion as described in claim 1, wherein in the general formula (I) Z1 forms a Beta -naphthothiazole ring, a Beta -naphthoselenazoLe ring or a benzothiazole or benzoselenazole ring which is unsubstituted or substituted with a methyl group, an ethyl group, a methoxy group, a phenyl group or a chlorine atom at the 5-position; Z2 forms a benzoselenazole ring which is unsubstituted or substituted with a methyl group, an ethyl group, a methoxy group, a phenyl group or a chloride atom at the 5-position; R1 and R2 each is a sulfosubstituted alkyl group, a carboxy-substituted alkyl group or a hydroxyalkyl group; and A is a methyl group.

Claim 4

The silver halide photographic emulsion as described in claim 1, wherein at least one of R1 and R2 is a sulfosubstituted alkyl group and at least one of R3 and R4 is a sulfosubstituted alkyl group.

Claim 5

The silver halide photographic emulsion as described in claim 1, wherein in the general formula (II) Z3 and z4 form benzimidazole rings substituted with chlorine atoms or fluorine atoms at the 5, 6, 5'' and 6'' positions.

Claim 6

The silver halide photographic emulsion as described in claim 1, wherein R1, R2, R3 and R4 are sulfo-substituted alkyl groups.

Claim 7

A color light sensitive material comprising a support having thereon the silver halide photographic emulsion as described in claim 1.

Claim 8

The silver halide photographic emulsion as described in claim 1, wherein said alkyl group for R1 - R4 is an unsubstituted alkyl group, a hydroxyalkyl group, a carboxy-substituted alkyl group, a sulfo-substituted alkyl group, an acetoxyalkyl group, a cyanoalkyl group, a carbamoylalkyl group, a morpholinocarbonyl group, an allyl group or a morpholinosulfonylalkyl group.

Claim 9

The silver halide photographic emulsion as described in claim 1, wherein Z1 is a benzothiazole, 5-chlorobenzothiazole, 5-bromobenzothiazole, 5-fluorobenzothiazole, 51-methylbenzothiazole, 51-methoxybenzothiazole, 5-methylcarbonylbenzothiazole, 5-methoxycarbonylbenzothiazole, 5-carboxybenzothiazole, 5-hydroxybenzothiazole, 5-trifluoromethylbenzothiazole, 5-cyanobenzothiazole, 5,6-dimethylbenzothiazole, 5,6-dimethoxybenzothiazole, 5,6-dichlorobenzothiazole, Beta -naphthothiazole, benzoselenazole, 5-chlorobenzoselenazole, 5-bromoselenazole, 5-methylbenzoselenazole, 51-methoxybenzoselenazole or Beta -naphthoselenazole ring; wherein Z2 is a benzoselenazole, 5-chlorobenzoselenazole, 5-bromobenzoselenazole, 5-methylbenzoselenazole or 5-methoxybenzoselenazole ring; wherein Z3 and Z4 each is a 1-methyl-5-chlorobenzimidazole, 1-methyl-5-fluorobenzimidazole, 1-methyl-5,6-dichlorobenzimidazole, 1-ethyl-5-chlorobenzimidazole, 1-ethyl-5-fluorobenzimidazole, 1-methyl-5, 6-dichlorobenzimidazole, 1-ethyl-5,6-difluorobenzimidazole, 1-propyl-5-chlorobenzimidazole, 1-propyl-5-fluorobenzimidazole, 1-propyl-5,6-dichlorobenzimidazole, 1-propyl-5,6-difluorobenzimidazole, 1-allyl-5-chlorobenzimidazole, 1-allyl-5-fluorobenzimidazole, 1-allyl-5,6-dichlorobenzimidazole, 1-allyl-5,6-difluorobenzimidazole, 1-phenyl-51-chlorobenzimidazole, 1-phenyl-5-fluorobenzimidazole, 1-phenyl-5,6-dichlorobenzimidazole, 1-phenyl-5,6-difluorobenzimidazole ring; wherein said alkyl group for A is a methyl group, an ethyl group, or a propyl group; wherein said R1 to R4 each is a methyl group, an ethyl group, a propyl group, a 2-hydroxyethyl group, a 3-hydroxypropyl group, a 2-carboxyethyl group, a 3-carboxypropyl group, a 4-carboxybutyl group, a 2-sulfoethyl group, a 3-sulfopropyl group, a 3-sulfobutyl group, a 2-(3-sulfopropoxy)ethyl groUp, a 2-hydroxy-3-sulfopropyl group, a 3-sulfopropoxyethoxyethyl group, an acetoxyethyl group, a cyanopropyl group, a Beta -carbamoylethyl group, a Beta -(4-morpholinocarbonyl)ethyl group, or a delta -(4-morpholinosulfonyl)butyl group.

Claim 10

The silver halide photographic emulsion as described in claim 1, including a cyan coupler.

Claim 11

The silver halide photographic emulsion as described in claim 1, wherein the supersensitizing combination contains anhydro-5,5'',9-trimethyl-3,3''-di(3-sulfopropyl)selenacarbocyanine hydroxide and anhydro-5,5'',6,6''-tetrachloro-1,1''-diethyl-3,3''-di(3 -sulfopropoxyethoxyethyl)benzimidazolocarbocyanine hydroxide mono sodium salt.

Claim 12

The silver halide photographic emulsion as described in claim 1, wherein the supersensitizing combination contains anhydro-5,5'',9-trimethyl-3,3''-di(3-sulfopropyl)selenacarbocyanine hydroxide and anhydro-5,5'',6,6''-tetrachloro-1,1'',3-triethyl-3''-(3 -sulfopropyl)benzimidazolocarbocyanine hydroxide.

Claim 13

The silver halide photographic emulsion as described in claim 1, wherein the supersensitizing combination contains anhydro-5,5'',9-trimethyl-3,3''-di(3-sulfopropyl)selenacarbocyanine hydroxide and anhydro-3-(2-carbamoylethyl)-5,5'',6,6''-tetrachloro1,1''-diethyl-3'' -sulfopropyl benzimidazolocarbocyanine hydroxide.

Claim 14

A silver halide photographic emulsion containing a supersensitizing combination of at least one sensitizing dye represented by the following general formula (I)

Claim 15

A silver halide photographic emulsion containing a supersensitizing combination of at least one sensitizing dye represented by the following general formula (I)