Abstract: A color photograph comprising a support having provided thereon at least one photographic layer, wherein said at least one photographic layer contains a storage stability improving compound which forms a chemically inert and substantially colorless compound by combining chemically with the oxidation product of an aromatic amine color developing agent remaining in said color photograph after color development processing.

Abstract: A silver halide color photographic light-sensitive material containing a combination of a pyrazolo-azole magenta coupler and a specific dye image stabilizing agent is disclosed. The stabilizing agent is effective to improve fastness of a dye image formed by the coupler to light, heat and moisture.

Abstract: A silver halide color photographic material, wherein a dye stabilizer as described in the claims is contained in a photographic layer such as a coupler-containing silver halide photosensitive emulsion layer. The dye images obtained eventually by developing the photographic material have improved fading or discoloring characteristics.

Abstract: A silver halide color photographic material, wherein a dye stabilizer as described in the claims is contained in a photographic layer such as a coupler-containing silver halide photosensitive emulsion layer. The dye images obtained eventually by developing the photographic material is excellent in preventing it from fading or discoloring.

Abstract: A novel 3,3'(2H,2'H)-spirobibenzofuran compound is disclosed. The spirobibenzofuran compound has a strong antioxidizing action and is thus useful as an antioxidant for dyes, synthetic polymer products such as rubbers, plastics and the like, and for petroleum. In addition, the compound is effective in preventing fading and discoloration of color photographic images obtained by a subtractive color process.

Abstract: A novel pyrazolone dye represented by the following formula (I), which can be effectively used as a filter dye, an irradiation inhibiting dye, an antihalation dye or the like in a photographic light-sensitive material: ##STR1## wherein R.sub.1 and R.sub.2 each represents --COOR or ##STR2## R and R' each represents a hydrogen atom, an alkyl group, or an aryl group or may combine with each other to form a 5- or 6-membered ring; Q.sub.1 and Q.sub.2 each represents an aryl group; X.sub.1 and X.sub.2 each represents a linkage group; Y.sub.1 and Y.sub.2 each represents a sulfo group or a carboxyl group; L.sub.1, L.sub.2 and L.sub.3 each represents a methine group; L.sub.4 and L.sub.5 each represents an alkylene group; m.sub.1 and m.sub.2 each represents 1 or 2; n represents 0, 1 or 2; p.sub.1 and p.sub.2 each represents 0 or 1; q.sub.1 and q.sub.2 each represent 0, 1, 2, 3 or 4; and s.sub.1 and s.sub.2 each represents 1 or 2.

Abstract: A silver halide color photographic material comprising a support having thereon at least one silver halide emulsion layer, the silver halide color photographic material containing at least one pyrazoloazole type coupler represented by the general formula (I) and at least one compound represented by the general formula (II). ##STR1## wherein R.sub.1 represents a hydrogen atom or a substituent; X represents a hydrogen atom or a group capable of being released upon coupling reacti1 Za, Zb and Zc each represents a methine group, a substituted methine grou .dbd.N-- or --NH--, one of the Za--Zb bond and the Zb--Zc bond being a double bond and the other being a single bond; when the Zb--Zc bond is a carbon-carbon double bond, the Zb--Zc bond may be a part of a condensed aromatic ring; R.sub.

Abstract: A method for processing a silver halide color photographic material comprising the step of processing a silver halide color photographic material after imagewise exposure thereof with a color developer containing at least one aromatic primary amine developing agent and at least one hydrazine compound represented by formula (I) ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, and R.sup.4, which may be the same or different, each represents a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic group, provided that R.sup.1 and R.sup.2 may be linked to form a heterocyclic ring; R.sup.3 and R.sup.4 may be linked to form a heterocyclic ring; and at least two hydrazine moieties derived from the compound represented by formula (I) may be linked to form a dimer or polymer by any of R.sup.1, R.sup.2, R.sup.3, and R.sup.4.

Abstract: There is provided a silver halide color photographic material containing a 6-hydroxychroman derivative in, combination with a specific coupler, i.e., a 5-pyrazolone type magenta coupler having an --SR group at the coupling position or a 5-pyrazolone type magenta coupler having an anilino group at the 3-position. The photosensitive material provides photographic images, quality of which is prevented from deteriorating as time passes. The photographic color images are free from discoloration or fading and do not form yellow stains on a white background.

Abstract: A silver halide color photographic light-sensitive material containing a combination of a pyrazolo-azole magenta coupler and a specific dye image stabilizing agent is disclosed. The stabilizing agent is effective to improve fastness of a dye image formed by the coupler to light, heat and moisture.

Abstract: A silver halide photographic light-sensitive material is described, the material comprising a support having thereon at least one photographic layer containing at least one compound represented by formula (I): ##STR1## wherein R represents a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted heterocyclic group, ##STR2## a substituted or unsubstituted silyl group, a substituted or unsubstituted phosphoric acid group, or a divalent group derived from the above-described groups which forms a ring together with the oxygen atom linking to --R and the carbon atom which is in the ortho-position to --O--R and to which ##STR3## is not bonded; R.sub.1, R.sub.2 and R.sub.

Abstract: A color photographic light-sensitive material comprising a support having thereon a silver halide emulsion layer containing therein a coupler represented by the following general formula (I):Q-B (I)wherein Q represents a coupler residue capable of forming a magenta color image upon the coupling reaction with an oxidation product of a developing agent; and B represents a group containing an unsubstituted or substituted methylenedioxybenzene group.The magenta coupler containing a methylenedioxybenzene group is useful in preventing the formation of yellow stain due to light irradiation in unexposed areas of a color photographic light-sensitive material after color development processing. Color images formed from the coupler are resistant to fading even if the color images obtained after color development processing are irradiated with light.

Abstract: A color photographic light-sensitive material is described, said material comprising a support having coated thereon at least one silver halide emulsion layer containing a 5-pyrazolone magenta coupler represented by formula (I) ##EQU1## wherein R represents an acylamino group, an anilino group or a ureido group; Ar.sup.1 represents a phenyl group which may be substituted with one or more halogen groups, alkyl groups, or alkoxy groups; Ar.sup.2 represents a phenyl group or a naphthyl group, each of which may be substituted with one or more halogen groups, hydroxy groups, carboxy groups, cyano groups, alkyl groups, acylamino groups, carbamoyl groups, ureido groups, sulfonamido groups, diacylamino groups, sulfamoyl groups, alkoxycarbonyl groups, phenyl groups, arysulfonyl groups or alkoxy groups; X represents oxygen, sulfur, or a methylene group; and Y represents a straight chain or branched chain alkylene group having from 1 to 6 carbon atoms, or an alkylene group containing an ether bond.

Abstract: A silver halide color photographic light-sensitive material is described comprising a support having thereon a photographic layer containing at least one coupler represented by formula (I) or (II) ##STR1## wherein Ar represents a phenyl group substituted with at least one substituent selected from a halogen atom, an alkyl group, an alkoxy group, an alkoxycarbonyl group and a cyano group; X represents a halogen atom or an alkoxy group; R.sub.1 represents a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an acylamino group, a sulfonamido group, a sulfamoyl group, a carbamoyl group, a diacylamino group, an alkoxycarbonyl group, an alkoxysulfonyl group, an aryloxysulfonyl group, an alkanesulfonyl group, an arylsulfonyl group, an alkylthio group, an arylthio group, an alkyloxycarbonylamino group, an alkylureido group, an acyl group, a nitro group, a carboxy group, or a trifluoromethyl group; R.sub.2 represents a halogen atom, a hydroxy group, an alkyl group, an alkoxy group or an aryl group; R.sub.

Abstract: 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.

Abstract: A method for preparing image-forming color couplers containing a thioether group at the coupling active position is disclosed which comprises reacting a compound of the formula A-H where A is a cyan, magenta or yellow coupler residue in which a hydrogen atom at the coupling off position is removed with a disulfide of the formula (IIa) or (IIb): ##STR1## where R is a straight chain, branched chain or cyclic alkyl group, a cyclic alkenyl group, or an aralkyl group or a ##STR2## group, B is Y, -D-Y or ##STR3## where D is an oxygen atom or >N--R.sub.4, R.sub.4 is a hydrogen atom, an alkyl group or an aryl group, Y is a straight chain, branched chain or cyclic alkyl group, a straight chain, branched chain or cyclic alkenyl group, an aralkyl group, an aryl group, or a heterocyclic group, Q is a non-metallic atomic group necessary for completing a 5- or 6-membered nitrogen-containing heterocyclic group and R.sub.1, R.sub.2 and R.sub.

Abstract: Silver halide color photographic sensitive materials which comprise photographic layers containing at least one of the couplers represented by the following general formula (I): ##STR1## wherein R.sub.1 represents an anilino group, an acylamino group or a ureido group, R.sub.2 represents an alkyl group, an aralkyl group or an alkenyl group, X.sub.1, X.sub.2 and X.sub.3 each represents a hydrogen atom, an alkyl group, a halogen atom, an alkoxy group, an aryloxy group, an acylamino group, a carbamoyl group, a sulfamoyl group, a sulfonyl group, a cyano group or an alkoxycarbonyl group and X.sub.1, X.sub.2 and X.sub.3 may be the same or different, are disclosed.