Fuji Photo Film Company, Limited

Shigeru Oono

Yoshiaki Suzuki

Kotaro Nakamura

Hiroshi Hara

Satoru Sawada

Nobuo Seto

Nobuo Furutachi

Seiiti Kubodera

A process for improving the light fastness of a magenta color image which comprises introducing a specific complex and a specific discoloration prevention aid into a layer bearing the magenta color image.

Process for improving light fastness of color images

A dye image stabilization process for color photographic sensitive elements which comprises processing a color photographic sensitive element containing at least one dye image stabilizer precursor with a solution containing divalent ions of at least one metal selected from Cu, Co, Ni, Pd and Pt is disclosed. Light fastness of dye images is thus improved.

Method for stabilizing dye images in color photographic sensitive

A method is described for stabilizing organic substrate materials having an absorption maximum in the range of from about 300 nm to 800 nm to light which comprises making at least one complex represented by the formula (I) coexist with the organic substrate materials in an amount effective to stabilize said organic substrate material: ##STR1## wherein M represents copper, cobalt, nickel, palladium or platinum, and R.sup.1 and R.sup.2 independently represent a hydrogen atom, an alkyl group, an aryl group, an acyl group, an N-alkylcarbamoyl group, an N-arylcarbamoyl group, or an N-alkylsulfamoyl group, an N-arylsulfamoyl group, an alkoxycarbonyl group or an aryloxycarbonyl group.

Method of stabilizing organic substrate materials to light

A method for stabilizing an organic substrate to light the substrate having an absorption maximum in the range of about 300 nm-about 800 nm, which comprises making at least one complex represented by following general formula (I) coexist with the substrate: ##STR1## wherein M represents an atom selected from the group consisting of Cu, Co, Ni, Pd and Pt, X represents O or S, R.sub.1 represents an alkyl group, an aryl group, an alkoxy group, an aryloxy group or, when taken together, the R.sub.1 's bound to the same phosphorus atom represent the non-metallic atoms necessary to complete a 6-membered ring together with the phosphorus atom. A photographic element containing the above complex is also claimed.

Growing community of inventors

Minami-ashigara, Japan

Shigeru Oono