Color photographic light-sensitive material

Claim 2

A silver halide color photographic light-sensitive material comprising a support having coated thereon a silver halide emulsion layer, the color photographic light-sensitive material containing a 2-equivalent magenta coupler represented by the following general formula (Ia): ##STR10## wherein Ar represents a phenyl group substituted with at least one halogen atom, an alkyl group having 1 to 22 carbon atoms, an alkoxy group having 1 to 22 carbon atoms, an alkoxycarbonyl group having 2 to 22 carbon atoms or a cyano group; Y represents an acylamino group having 1 to 32 carbon atoms or an anilino group having 6 to 44 carbon atoms; and Z represents a group capable of being released by coupling, and at least one kind of piperidine compound to prevent the occurrence of stain represented by the following general formula (II): ##STR11## wherein R 1 represents a hydrogen atom or an alkyl group having from 1 to 4 carbon atoms; R 2 represents an alkyl group having from 1 to 12 carbon atoms, a hydroxyalkyl group having from 1 to 12 carbon atoms, an alkenyl group having from 3 to 4 carbon atoms, an alkynyl group having from 3 to 4 carbon atoms or a benzyl group; W represents a hydrogen atom, an alkyl group having 1 to 22 carbon atoms, a hydroxy group, a silyloxy group, an alkylamino group having 1 to 22 carbon atoms, an aryloxy group having 6 to 22 carbon atoms, an allyl group, an alkoxy group having 1 to 22 carbon atoms, an acylamino group having 1 to 22 carbon atoms, a sulfonamido group having 1 to 22 carbon atoms, an alkoxycarbonyl group having 2 to 23 carbon atoms, a carboxy group, an acyloxy group having 1 to 22 carbon atoms or a phosphoric acid oxy group.

Claim 3

A silver halide color photographic light-sensitive material as claimed in claim 1, wherein the group capable of being released by coupling represented by Z is a halogen atom.

Claim 4

A silver halide color photographic light-sensitive material as claimed in claim 1, wherein the group capable of being released by coupling represented by Z is a group releasing an oxygen atom.

Claim 5

A silver halide color photographic light-sensitive material as claimed in claim 1, wherein the group capable of being released by coupling represented by Z is a group releasing a nitrogen atom.

Claim 6

A silver halide color photographic light-sensitive material as claimed in claim 1, wherein the group capable of being released by coupling represented by Z is a group releasing a sulfur atom.

Claim 7

A silver halide color photographic light-sensitive material as claimed in claim 1, wherein the 2-equivalent magenta coupler represented by the general formula (Ia) is represented by the following general formula (Ib): ##STR12## wherein Ar represents a phenyl group substituted with at least one halogen atom, an alkyl group having 1 to 22 carbon atoms, an alkoxy group having 1 to 22 carbon atoms, an alkoxycarbonyl group having 2 to 22 carbon atoms or a cyano group; R 1 represents a hydrogen atom, a halogen atom, an acylamino group having 1 to 22 carbon atoms, a sulfonamido group having 1 to 22 carbon atoms, a carbamoyl group having 1 to 22 carbon atoms, a sulfamoyl group having 1 to 22 carbon atoms, an alkylthio group having 1 to 22 carbon atoms, an alkoxycarbonyl group having 2 to 22 carbon atoms, a hydroxy group, an alkyl group having 1 to 22 carbon atoms, an alkoxy group having 1 to 22 carbon atoms, or an aryl group having 6 to 22 carbon atoms; m represents an integer of 1 to 5; Y represents an acylamino group having 1 to 32 carbon atoms or an anilino group having 6 to 44 carbon atoms; and when m is 2 or more, R.sub. 1 may be the same or different.

Claim 8

A silver halide color photographic light-sensitive material as claimed in claim 6, wherein the 2-equivalent magenta coupler represented by the general formula (Ib) is represented by the following general formula (Ic): ##STR13## wherein Ar represents a phenyl group substituted with at least one halogen atom, an alkyl group having 1 to 22 carbon atoms, an alkoxy group having 1 to 22 carbon atoms, an alkoxycarbonyl group having 2 to 23 carbon atoms or a cyano group; R 2 represents an alkyl group having 1 to 22 carbon atoms or an aryl group having 6 to 22 carbon atoms; X represents a halogen atom or an alkoxy group having 1 to 22 carbon atoms; R 3 represents a hydrogen atom, a hydroxy group, a halogen atom, an alkyl group having 1 to 36 carbon atoms, an alkoxy group having 1 to 36 carbon atoms or an aryl group having 6 to 38 carbon atoms; R 4 represents a hydrogen atom, a halogen atom, an alkyl group having 1 to 36 carbon atoms, an alkoxy group having 1 to 36 carbon atoms, an acylamino group having 1 to 36 carbon atoms, a sulfonamido group having 1 to 36 carbon atoms, a sulfamoyl group having 1 to 36 carbon atoms, a carbamoyl group having 1 to 36 carbon atoms, a diacylamino group having 1 to 36 carbon atoms in each acyl moiety, an alkoxycarbonyl group having 2 to 36 carbon atoms, an alkoxysulfonyl group having 1 to 36 carbon atoms, an aryloxysulfonyl group having 6 to 38 carbon atoms, an alkanesulfonyl group having 1 to 36 carbon atoms, an arylsulfonyl group having 6 to 38 carbon atoms, an alkylthio group having 1 to 36 carbon atoms, an arylthio group having 6 to 38 carbon atoms, an alkyloxycarbonylamino group having 2 to 36 carbon atoms, an alkylureido group having 1 to 36 carbon atoms, an acyl group having 1 to 36 carbon atoms, a nitro group, a carboxy goup, or a trichloromethyl group; and n is an integer of from 1 to 4.

Claim 9

A silver halide color photographic light-sensitive material as claimed in claim 7, wherein the alkyl group represented by R 2 is an alkyl group having from 1 to 22 carbon atoms.

Claim 10

A silver halide color photographic light-sensitive material as claimed in claim 7, wherein the total number of carbon atoms included in the groups represented by R 2 and R 3 is not less than 6.

Claim 11

A silver halide color photographic light-sensitive material as claimed in claim 1, wherein an amount of the piperidine compound represented by the general formula (II) to the amount of the 2-equivalent magenta coupler represented by the general formula (Ia) is from 5 mol% to 500 mol%.

Claim 12

A silver halide color photographic light-sensitive material as claimed in claim 1, wherein an amount of the piperidine compound represented by the general formula (II) to the amount of the 2-equivalent magenta coupler represented by the general formula (Ia) is from 20 mol% to 100 mol%.

Claim 13

A silver halide color photographic light-sensitive material as claimed in claim 1, wherein the 2-equivalent magenta coupler represented by the general formula (Ia) and the piperidine compound represented by the general formula (II) are present in the same layer.

Claim 14

A silver halide color photographic light-sensitive material as claimed in claim 1, wherein the 2-equivalent magenta coupler represented by the general formula (Ia) and the piperidine compound represented by the general formula (II) are present in a silver halide emulsion layer.

Claim 15

A silver halide color photographic light-sensitive material as claimed in claim 13, wherein the silver halide emulsion layer is a green-sensitive silver halide emulsion layer.

Claim 16

A silver halide color photographic light-sensitive material as claimed in claim 14, wherein the photographic material further contains a blue-sensitive silver halide emulsion layer containing a yellow color-forming coupler and a red-sensitive silver halide emulsion layer containing a cyan color-forming coupler.

Claim 17

A silver halide color photographic light-sensitive material as claimed in claim 15, wherein the photographic material is a color printing paper.

Claim 18

A silver halide color photographic light-sensitive material as claimed in claim 12, wherein the 2-equivalent magenta coupler and the piperidine compound are present in a droplet of an organic solvent having a melting point of not less than 180° C. dispersed in a hydrophilic colloid.

Claim 19

A silver halide color photographic light-sensitive material as claimed in claim 17, wherein the organic solvent is a phosphoric acid ester.

Claim 20

A silver halide color photographic light-sensitive material as claimed in claim 17, wherein the hydrophilic colloid is gelatin.

Claim 23

A method of forming a color image as claimed in claim 20, wherein the photographic material is, after color development, processed in a bleach-fixing solution.

Claim 24

A method of forming a color image as claimed in claim 20, wherein the color development step and the bleach-fixing step are carried out continuously.