Light-sensitive color photographic material

Claim 2

A light sensitive color photographic material comprising a support and at least one hydrophilic colloid layer coated thereon which comprises a light-sensitive silver halide emulsion and an image dye-forming substance associated with said silver halide emulsion and, as a color fog inhibiting agent, a compound of the formula wherein E is nitro, cyano, formyl, trihalogenomethyl, COR 7 , or SO 2 R 8 , wherein R 7 is alkyl and R 8 is aryl, B is halogen, alkyl, aryl, alkoxy, alkenyl, cycloalkyl, aryloxy, carbamoyl, amido, or sulfamoyl, X 1 and X 2 are individually hydrogen or a group which is capable of being split off under alkaline conditions, m and n are 1-3, provided that at least one B is alkyl having 8-36 carbon atoms

Claim 3

The material of claim 1 wherein B is halogen, unsubstituted alkyl, aryl,

Claim 4

The material of claim 2, wherein R 7 is alkyl having 1-3 carbon

Claim 5

The material of claim 2, wherein X 1 and X 2 independently are hydrogen or a group represented by the following formulas ##STR14## wherein R 9 , R 10 , R 11 , R 12 , R 13 , and R 14 independently represent alkyl, cycloalkyl, alkenyl or aryl.

Claim 6

The material of claim 3 wherein E is COR 7 , R 7 is methyl, ethyl, or propyl, and n is 1 or 2.

Claim 7

The material of claim 5 wherein R 7 is methyl.

Claim 8

The material of claim 2 wherein E is nitro or cyano and n is 1 or 2.

Claim 9

A light-sensitive color photographic material according to claim 2 wherein B is a branched alkyl group.

Claim 10

A light-sensitive color photographic material according to claim 2 wherein B is a secondary alkyl group.

Claim 11

A light-sensitive color photographic material according to claim 9 wherein said secondary alkyl group has from 10 to 22 carbon atoms

Claim 12

A light-sensitive color photographic material according to claim 2 wherein said hydroquinone compound is 2-nitro-5-sec-octadecyl hydroquinone, 2-cyano-5-sec-octadecyl hydroquinone or 2-acetyl-3,6-di-sec-dodecyl hydroquinone.

Claim 13

A light-sensitive color photographic material according to claim 1 wherein said hydroquinone compound or precursor is incorporated in an image dye-forming substance containing layer or a layer adjacent thereto, said image dye-forming substance being made associate with said silver halide emulsion.

Claim 14

A light-sensitive color photographic material according to claim 12 wherein said image dye-forming material is a compound represented by the general formula ##STR15## wherein DYE represents the residue of a diffusible dye or diffusible dye precursor, LINK represents --O--, --S--, --SO 2 -- or --SO 2 NH-- (where the nitrogen atom is attached to ##STR16## BALL represents a photographically inert ballast group having such size of molecule and/or conformation that enables to make the image dye-forming substance non-diffusible under alkaline condition and Z represents a non-metal atom group required for forming together with the carbon atom attached to said LINK, a 5- or 6-membered ring which can be split off from the LINK under alkaline condition upon the oxidation-reduction reaction with and oxidation product of a silver halide developing agent.

Claim 15

A light-sensitive color photographic material according to claim 2 wherein said material is a light-sensitive color photographic material suitable for forming a dye image by a redox reaction of an oxidation product of a 1-phenyl-3-pyrazolidone type developing agent.

Claim 16

A light-sensitive color photographic material according to claim 14 wherein said developing agent is 4-hydroxymethyl-4-methyl-1-phenyl-3-pyrazolidone.

Claim 17

A light-sensitive color photographic material according to claim 2 wherein said light-sensitive silver halide emulsion is a direct positive type emulsion having high internal sensitivity and low surface sensitivity.

Claim 18

A light-sensitive color photographic material according to claim 2 wherein said hydroquinone or precursor thereof is being incorporated into said material at a concentration ranging from 10 -3 to 5×10 -1 moles per mole of silver halide.

Claim 19

A light-sensitive color photographic material according to claim 2 wherein said material is one suitable for a color diffusion transfer process.