Abstract: A silver halide photographic material is described, comprising a support having provided thereon at least one silver halide photographic emulsion layer and comprising a bleach accelerator-releasing coupler, wherein said bleach accelerator-releasing coupler is represented by formula (I)A--(TIME).sub.n --S--X--(Y).sub.m --(Z)l]a (I)wherein A represents a coupler residual group; TIME represents a timing group; n represents 0 or 1; X represents a cyclic aliphatic group or a saturated heterocyclic group; Y represents an aliphatic group having from 1 to 8 carbon atoms which may contain a group of --O--, a group of --S--, a group of --COO--, a group of --CO--, a group of ##STR1## a group of ##STR2## a group of --SO.sub.2 --or a group of ##STR3## in its chain; m represents an integer of from 0 to 3, and when m represents 2 or more, the two or more Y groups may be the same or different; Z represents a group of --OH, a group of --COOM, a group of --SO.sub.

Abstract: A silver halide color photographic material having at least one silver halide emulsion layer on a support is disclosed. Said silver halide emulsion layer contains at least one of the 1H-pyrazolo [3,2-c]-S-triazole derived magenta couplers that have a substituent of the following formula at 3-position:--R.sub.1 --S(O).sub.n --R.sub.2whereinR.sub.1 is an alkylene group;R.sub.2 is an alkyl, cycloalkyl or aryl group; andn is 1 or 2.

Abstract: A silver halide photographic material containing a support and, provided thereon, at least one silver halide emulsion layer, this silver halide emulsion layer containing silver halide grains containing 90 mol % or more of silver chloride, a dye-forming coupler, and a compound represented by general formula [S]; ##STR1## wherein Q is a group of atoms necessary to complete a 5- or 6-membered heterocyclic ring or a 5- or 6-membered ring fused with a benzene ring and M is a hydrogen atom, an alkali metal or an ammonium group;the silver halide layer having been hardened by a hardener represented by formula [HDA] or [HDB]; ##STR2## wherein Rd.sub.

Abstract: There are disclosed a processing solution of a light-sensitive silver halide color photographic material, which comprises containing a compound represented by the formula (I) shown below, and a processing method of the same, which comprises subjecting a light-sensitive silver halide color photographic material having at least one layer of silver halide emulsion layer on a support to imagewise exposure and then applying processing including at least a color developing processing, characterized in that the color developing solution to be used in the color developing processing contains a compound represented by the formula (I) shown below: ##STR1## wherein R.sub.1 represents an alkyl group having 1 to 5 carbon atoms substituted with an alkoxy group, and R.sub.2 represents a hydrogen atom, an alkyl group having 1 to 5 carbon atoms or an alkyl group having 1 to 5 carbon atoms substituted with an alkoxy group, and R.sub.1 and R.sub.2 may be bonded with each other to form a ring containing an oxygen atom.

Abstract: There is disclosed a method for processing a light-sensitive silver halide color photographic material in which a light-sensitive silver halide color photographic material having at least one silver halide emulsion layer is exposed imagewise to light and then subjected to processing including at least a color development treatment or a color development treatment followed by a bleach-fixing treatment, the improvement wherein said at least one silver halide emulsion layer is a silver halide emulsion layer in which not less than 80 mole % of the total silver halide in the layer is silver chloride and the pH value of the bleach-fixing solution used in said bleach-fixing treatment is in the range of 4.5 to 6.8.

Abstract: In a reversal process for the formation of color photographic images which consists of a black and white development (first development) to obtain a first negative image, followed by exposure and/or uniform fogging of the residual silver halide and a further processing (including a second color development), to obtain a second visible (in transparency) color positive image, of a silver halide color multilayer material which comprises, coated on a support base, one or more red-sensitive silver halide emulsion layers associated with dispersed non-diffusing hydrophobic cyan couplers, one or more green-sensitive silver halide emulsion layers associated with dispersed non-diffusing hydrophobic magenta couplers and one or more blue-sensitive silver halide emulsion layers associated with dispersed non-diffusing hydrophobic yellow couplers, the improvement which consists of the reversal development of said magenta-forming layer being performed in the absence of a significant presence of oil.

Abstract: This invention provides a processing method for exposed silver halide color photosensitive materials, which enables sufficient desilverization to be performed in a short time and highly photographic quality to be obtained. The processing method of this invention comprises the steps of: exposing silver halide color photosensitive material containing 5-pyrazolone-type or pyrazoloazole-type 2-equivalent magenta coupler to light; color developing said photosensitive material; and desilverizing said photosensitive material, wherein said desilverizing step uses a bleaching bath containing ferric complex salt aminopolycarboxylate, and thereafter uses a bleaching-and-fixing bath containing ferric complex salt aminopolycarboxylate.

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: A replenishing process for use in the development of an image-wise exposed silver halide color photographic light-sensitive material in which a color developer replenisher containing 0-3.0.times.10.sup.-3 mole of bromide is added to a color developer in a volume of between 0.5 and 9 ml per 100 cm.sup.2 of silver halide color photographic light-sensitive material.

Abstract: A silver halide photographic light-sensitive material containing a 1H-pyrazolo[3,2-c]-s-triazole type magenta coupler is disclosed. The magenta coupler has an --SO.sub.2 -- group and at least one group selected from the group consisting of a --COOM group and a --SO.sub.3 M group, M being a hydrogen atom or a cation, in its molecule. The photographic material is improved in color development performance and preservability of magenta images.

Abstract: A method for processing a silver halide color photographic material by fixing or bleach-fixing the material and immediately thereafter subjecting it to washing or stabilization, wherein (A) the silver halide color photographic material contains at least one of sensitizing dyes represented by the formulae (I) and (II) specified in the specification and at least one two-equivalent magenta polymer coupler which is derived from a specified monomer coupler, and (B) the amount of a replenisher in the washing step and/or the stabilization step falls within the range of 3 to 50 times, based on unit area of the material after being processed, the amount of each processing solution having been carried over from the preceding bath.

Abstract: Disclosed is a method for processing a light-sensitive silver halide color photographic material, which comprises including at least the step of color developing, the step of processing with a liquor having fixing ability and the step of processing with a washing solution substitute as the final processing step, after imagewise exposure of a light-sensitive silver halide color photographic material containing at least one silver halide emulsion layer on a support, characterized in that at least one layer of the silver halide emulsion layer contains at least one coupler selected from the magenta couplers and the cyan couplers; washing solution substitute contains at least one compound selected from the group consisting of from 2.0.times.10.sup.-5 to 2.5.times.10.sup.-2 mol per liter of the washing solution substitute of the aldehydes, from 2.0.times.10.sup.-5 to 8.0.times.10.sup.-2 mol per liter of the washing solution substitute of the aldehyde derivatives and from 2.0.times.10.sup.-5 to 8.0.times.10.sup.

Abstract: Pyrazolo[3,2-c]-s-triazole dye-forming couplers containing in the 6-position a substituted or unsubstituted tertiary alkyl group and in the 3-position a substituted or unsubstituted aryl group in photographic materials and processes provide dyes of improved light stability. These couplers are particularly useful in combination with alkoxybenzene dye image stabilizers.

Abstract: Silver halide color photographic materials are described, which comprise at least one silver halide emulsion layer coated on a support and which are characterized by the incorporation of a pyrazoloazole type coupler of the following general formula (I) into the silver halide emulsion layer(s) or the adjacent layer(s) thereto: ##STR1## wherein Za and Zb each may represent ##STR2## R.sup.1 and R.sup.2 each may represent a hydrogen atom or a substituent; X represents a hydrogen atom or a group capable of being removed upon a coupling reaction with an oxidized form of an aromatic primary amine type developing agent; when Za.dbd.Zb is a carbon-carbon double bond, this may be a part of the aromatic ring in the formula: with the proviso that at least one of R.sup.1 and R.sup.2 is a group represented by general formulae (II) or (III): ##STR3## wherein R.sup.3 represents a hydrogen atom or a substituted or unsubstituted alkyl group; R.sup.4 represents a hydrogen atom or a substituent; R.sup.

Abstract: A method for the formation of a color image is described, wherein a silver halide color photographic material comprising a photographic layer provided on a reflective support is imagewise exposed and then subjected to development for a period of time within 2 minutes and 30 seconds with a color developer which contains an aromatic primary amine developing agent but does not substantially contain benzyl alcohol, wherein said photographic layer contains at lesat one specific non-coloring coloration accelerator selected from the group consisting of compounds represented by formulae (I) through (VII) defined in the specification.

Abstract: A method of forming an image comprising, after color developmenmt of an exposed silver halide color photographic material, processing the developed silver halide color photographic material with a bath having a bleaching ability and subsequently with a bath having a bleach-fixing ability, wherein the silver halide color photographic material comprises a support having coated thereon at least one silver halide emulsion layer and at least one pyrazoloazole type magenta coupler represented by the following general formula (A): ##STR1## wherein R.sub.22 represents a hydrogen atom of a substituent; X represents a group capable of being split off upon a coupling reaction with an oxidation product of an aromatic primary amine developing agent; Za, Zb and Zc each represents a methine group, a substituted methine group, .dbd.

Abstract: A method of forming a color image which comprises processing, after imagewise exposure, with a color developing solution which contains not more than 0.

Abstract: A method of processing of a silver halide color photographic light-sensitive material is disclosed. The color photographic material to be processed comprises a support and photographic component layers including a blue-sensitive, green-sensitive and red-sensitive silver halide emulsion layers, and at least one of the photographic emulsion layers comprises a silver halide containing 0.5 to 25 mol % of silver iodide. The total thickness of the photographic component layers is from 8 to 25 .mu.m and the swelling rate T1/2 of this layers is not more than 25 sec. At least one of the emulsion layers contains a specific coupler. The color photographic material is processed with a bleach-fixing solution containing an organic acid ferric complex after a developing treatment.The processing by this invention provides high sensitivity and minimized cyan dye loss of the photographic material.

Abstract: A method for processing a silver halide photographic material by processing a silver halide color photographic light-sensitive material containing at least a silver halide emulsion layer comprising a silver halide grain essentially consisting of silver chlorobromide and a binder having a swelling rate of T 1/2 of 2 sec. to 30 sec. The color developer contains a n-hydroxyalkyl-p-phenylenediamine derivative at a temperature not less than 30.degree. C. for a time not more than 150 sec. The time and temperature are effective to process the silver halide color photographic light-sensitive material without decreasing the stability of the resulting dye image.

Abstract: Novel photographic dye-forming couplers comprise an imidazo[1,2-b]pyrazole nucleus which reacts at its 3-position with an oxidized aromatic primary amino color developing agent. These couplers are monomeric or polymeric and are useful in photographic materials and processes and have improved absorption and solubility characteristics.

Abstract: This invention relates to a silver halide photographic light-sensitive material in which at least one of the silver halide emulsion layers thereof contains an 1H-pyrazolo[3,2-C]-s-triazole magenta coupler substituted in the third position by a group represented by the following Formula [I];--R.sub.1 --SO.sub.2 --R.sub.2 Formula [I]wherein R.sub.1 represents an alkylene group having not less than 3 carbon atoms in the straight-chained portion thereof, which is capable of linking a --SO.sub.2 --R.sub.2 to the carbon atom in the third position of the nucleus of the 1H-pyrazolo[3,2-C]-s-triazole; and R.sub.2 represents an aryl group.The silver halide photographic light-sensitive materials of the invention are excellent in light-resistance of magenta dye images and also spectral absorption characteristics.

Abstract: A method for forming an image in a silver halide color photographic light-sensitive material comprising developing an imagewise exposed silver halide color photographic light-sensitive material and then bleach fixing the silver halide color photographic light-sensitive material in a bleach fixing bath, the silver halide photographic color light sensitive material comprising a support having thereon a silver halide emulsion layer containing a yellow coupler, a silver halide emulsion layer containing a magenta coupler and a silver halide emulsion layer containing a cyan layer, wherein the silver halide emulsion layer containing the magneta coupler contains at least one kind of pyrazoloazole type coupler represented by the general formula (I): ##STR1## wherein R.sup.

Abstract: A method of processing a silver halide color photographic material, which comprises processing a photographic material containing at least one pyrazoloazole type magenta coupler represented by the general formula (I) in a final bath containing a soluble iron salt in an amount of at least 1.times.10.sup.-4 mol/l, whereby marked improvements in stabilization of color images, especially cyan dye images and prevention of yellow stain are achieved: ##STR1## wherein R.sub.1 represents a hydrogen atom or a substituent, X represents a hydrogen atom or a group capable of being eliminated by the coupling reaction with an oxidation product of an aromatic primary amine developing agent, and Z.sub.a, Z.sub.b and Z.sub.c each represents methine group, a substituted methine group, .dbd.N-- or --NH--, provided that one of the Z.sub.a -Z.sub.b and Z.sub.b -Z.sub.c bonds is a double bond and the other is a single bond, in which when it represents a double bond the Z.sub.b -Z.sub.

Abstract: A silver halide color photographic material is described, comprising a support having formed thereon at least one silver halide emulsion layer having dispersed therein, in a coexisting state, at least one magenta coupler represented by formula (I) and at least one high-boiling point organic solvent represented by the formula (II) ##STR1## wherein R.sup.1 and R.sup.2 each represents a hydrogen atom or a substituent and x represents a hydrogen atom or a group capable of being released by a coupling reaction with the oxidation product of an aromatic primary amine developing agent; andwherein R.sup.3, R.sup.4, and R.sup.5 each represents an alkyl group, a cycloalkyl group, or an alkenyl group, and the total number of carbon atom of the groups R.sup.3, R.sup.4 and R.sup.5 is from 12 to 60.

Abstract: Photographic recording materials which contain a developer substance or a precursor thereof produce better results if in addition they contain a sulphite, a disulphite or a compound capable of releasing sulphite in the photographic material.

Abstract: A silver halide color photographic light-sensitive material containing in its silver halide emulsion layer a latex of magenta color image-forming polymer or copolymer coupler capable of coupling with an oxidation product of an aromatic primary amine developing agent, wherein said coupler has repeating units derived from the monomer represented by the formula (I), (II), (III), (IV) or (V) ##STR1## wherein R.sub.1 represents a hydrogen atom, a lower alkyl group containing 1 to 4 carbon atoms or a chlorine atom, R.sub.2, R.sub.3 and R.sub.

Abstract: A silver halide color photographic material is disclosed which has at least one silver halide emulsion layer on a support, said silver halide emulsion layer containing at least one magenta coupler of the following formula (I) or (II): ##STR1## wherein R.sub.1 and R.sub.4 are each a hydrogen atom, an alkyl group or an aryl group; R.sub.2 and R.sub.6 are each a monovalent group; R.sub.3 is an alkyl group, an aryl group or a heterocyclic group; R.sub.5 is an alkyl group or an aryl group; R.sub.7 is an alkylene group, an arylene group or a bivalent organic group having at least one alkylene bonded to at least one arylene; R.sub.8 is an alkyl group, an alkenyl group, an aryl group or a heterocyclic group; X is a single bond or an alkylene group having 1 to 5 carbon atoms; Z is a hydrogen atom or a group that can be eliminated upon coupling reaction with the oxidized product of a color developing agent; and m is an integer of 0 to 4.

Abstract: A photographic element comprising a support having thereon a layer containing a dye that is formed by the reaction of an anilino-type magenta coupler with the oxidized product of a color developing agent, the said layer comprising an organic solvent having a dielectric constant of not more than 6.5 and at least one of metallic complexes having the following Formula [I], Formula [II] or Formula [III]: ##STR1## In Formulas [I], [II] and [III], M is a nickel atom, copper atom, cobalt atom, palladium atom or platinum atom; X.sub.1 and X.sub.2 each is an oxygen atom, sulfur atom or --NR.sub.5 -- (wherein R.sub.5 is a hydrogen atom, an alkyl, aryl or hydroxyl radical); X.sub.3 is a hydroxyl or mercapto radical; Y is an oxygen atom or sulfur atom; R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each is a hydrogen atom or a halogen atom or a cyano radical, or an alkyl, aryl, cycloalkyl or heterocyclic radical which each is bonded directly or through a divalent combining radical to a carbon atom; and at least one of the R.sub.

Abstract: A silver halide photosensitive material is developed with a developing solution containing an aromatic primary amine in the presence of a coupler represented by the following general formula (I): ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 each represents a hydrogen atom or a certain substituent group, and X represents a hydrogen atom or a coupling eliminable group; to provide magenta color image having high color purity.

Abstract: A method of forming a photographic azo or azamethine dye image in an exposed photographic silver halide element, the method of comprising the steps of (a) developing the imagewise exposed material to form an imagewise pattern of oxidized color developing agent, (b) reacting the oxidized color developing agent with a color coupler to produce an image dye, characterized in that at least one of the color developing agent and the color coupler possesses a metal chelating site such that the image dye is capable of forming a bi-, tri- or higher-dentate metallized dye, and (c) contacting the image dye with polyvalent metal ions to form a metallized dye image. Specified color developing agents include heterocyclic substituted hydrazides and specified couplers include benziso-oxazolones and 2H-pyrazolo-[3,4-b]pyridines in addition to more conventional compounds.

Abstract: A silver halide color photographic light-sensitive material comprising a support having thereon a silver halide emulsion layer containing a magenta color image forming polymer coupler latex which is capable of forming a dye upon coupling with an oxidation product of an aromatic primary amine developing agent and which is a polymer or copolymer having a repeating unit derived from a monomer represented by the following general formula (I): ##STR1## wherein R.sub.1 represents a hydrogen atom, a lower alkyl group containing from 1 to 4 carbon atoms or a chlorine atom; R.sub.2 represents an unsubstituted or substituted alkylene group which may be a straight chain or a branched chain; R.sub.

Abstract: The invention relates to a process of dispersing oil-soluble photographic additives having a silver-halide base for information recording materials.According to the invention, compounds of the following general formula: ##STR1## are used as auxiliary dispersing agents. The symbolsR represents hydrogen, alkyl with 1 to 8 C atoms,M represents hydrogen, alkali metal, ammonium, andX represents OR or SO.sub.3 M.

Abstract: A silver halide color photographic light-sensitive material comprising a support having thereon a silver halide emulsion layer containing a magenta color image forming polymer coupler latex which is capable of forming a dye upon coupling with an oxidation product of an aromatic primary amine developing agent and which is a polymer or copolymer having a repeating unit derived from a monomer represented by the following general formula (I) ##STR1## wherein R represents a hydrogen atom, a lower alkyl group containing from 1 to 4 carbon atoms or a chlorine atom; and X represents a halogen atom, an acylamino group, a carbamoyl group, a sulfonamido group, a sulfamoyl group, a cyano group or an alkoxycarbonyl group and which is present at the 4-position or 5-position of the phenyl group.

Abstract: A method of processing monochrome silver halide material which contains in at least one silver halide layer in addition to the normal image-forming color coupler or couplers a development inhibitor releasing compound which method comprises developing the exposed material in a color developing solution which comprises not more than 2.5 g/liter of a paraphenylene diamine color developing agent which is able to couple with the color coupler or couplers and D.I.R. compound present, the process further comprising silver halide fixing, silver image bleaching and washing steps. The developed photographic images exhibit a remarkable increase in sharpness.

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: Photographic magenta dye-forming couplers have the general formula: ##STR1## wherein: A represents the atoms necessary to complete, with the nitrogen atom to which it is attached, a magenta dye-forming coupler moiety whose coupling position is inactivated by the --CHR.sup.1 R.sup.2 group;CHR.sup.1 R.sup.2 is a blocking group which, upon reaction with oxidized color developing agent, is detached from the coupler moiety to yield a mobile reaction product;R.sup.1 is alkyl--O--CO--, alkyl--CO--, aryl--O--CO--, aryl--CO--, --COOH, --NO.sub.2 or --CN andR.sup.2 is a group specified for R.sup.1 or aryl--NHCO--.These couplers can be incorporated in photographic elements, emulsions and processing compositions.

Abstract: Color photographic material is described in which a yellowish image is formed which can be used to print black and white prints. Also present in the layer is a small amount of a more reactive coupler which produces a colored image to which black and white paper is not sensitive. This more reactive coupler reduces the fog in the highlight areas.Most preferably small amounts of other couplers are present which result in a green or brown image which makes it easier for the operator to focus the image.

Abstract: Novel dye-forming couplers have the structure: ##STR1## wherein: Z represents the atoms to complete, with the attached oxygen atom, the same or different 5-pyrazolone dye-forming coupler moiety, phenol dye-forming coupler moiety or naphthol dye-forming coupler moiety, the * in the ring completed by Z representing the coupling position;R is hydrogen or a coupling-off group;Bl is a blocking group removable, during development, from the coupler moiety completed by Z to which it is directly attached; andn is an integer of 2 to 4.

Abstract: A process for producing a multicolor optical filter by exposing a multilayer color photographic material comprising:(1) a silver halide emulsion layer containing a colored coupler (1b) which has one of cyan, magenta or yellow colors and which forms a dye of one of the other two colors than the color of the colored coupler by a coupling reaction with the oxidation product of an aromatic primary amine color developing agent, and(2) a silver halide emulsion layer containing (i) a silver halide emulsion having a sufficiently high sensitivity that it can be exposed without exposing emulsion layer (1) and without increasing the color density in emulsion layer (1) and (ii) a colored coupler (2b) which has the same color as that of the dye formed by the coupling reaction of the colored coupler (1b) and which forms a cyan, magenta or yellow dye but not the color of the colored coupler (1b) or the color of the dye formed by the coupling reaction of the colored coupler (1b); the exposure is through a stripe or mosaic fi

Abstract: A method is disclosed for alleviating the partial inactivation of color couplers caused by adventitious reaction with vapors of formaldehyde or a vinyl monomer. Partial inactivation is evidenced by decreased spectral absorptivity of the dye produced by reaction of the color coupler with color dye-forming compounds, such as oxidized photographic color developing agents. The method comprises contacting a partially inactivated coupler with an aqueous solution comprising an oxidizing agent and an oxidation accelerator.

Abstract: Novel 5-pyrazolone magenta dye-forming couplers are blocked with a coupler moiety which yields an alkali-soluble or colorless reaction product. The coupler moiety is joined via its coupling position to the enol oxygen of the 5-pyrazolone and is displaced therefrom during processing as a result of reaction by means of oxidized color developing agent to thereby activate the 5-pyrazolone coupler. These couplers have good reactivity and good resistance to aerial contaminants, such a formaldehyde, and can be incorporated in photographic emulsions and elements.

Abstract: A color photographic material comprising a light-sensitive silver halide emulsion layer coated on a support containing a magenta coupler represented by general formual [I] or [II]: ##STR1## wherein, R.sub.1 represents a hydrogen atom, an alkyl, aryl or 5 or 6-membered heterocyclic group, R.sub.2 represents a hydrogen atom, an alkyl, aryl, 5 or 6-membered heterocyclic, amino, sulfamoyl or carbamoyl group, R.sub.3 represents an alkyl, aryl or 5 or 6-membered heterocyclic group having from 12 to 35 carbon atoms, R.sub.4 represents an alkyl group having from 2 to 8 carbon atoms or a phenyl group, and R.sub.5 represents an alkyl group having from 2 to 8 carbon atoms.

Abstract: Light-sensitive recording material for color photography, which contains, in at least one silver halide emulsion layer, at least one magenta coupler of the formula ##STR1## in which A is a 5-membered, heterocyclic, unsaturated ring system which contains 2 or 3 hetero-atoms, at least one of which is a nitrogen atom, and can be fused with a benzene ring and which is substituted by at least one ballast group, R is a substituted or unsubstituted aryl radical, R.sub.1 is hydrogen, halogen, alkyl, alkoxy, halogenoalkyl, alkylsulfonyl or aryloxy and X is a radical detachable during the coupling reaction.The magenta couplers show high reactivity (high maximum density), which facilitates accelerated processing of the photographic materials, and minimal fogging. The couplers also have good fastness to light.

Abstract: The stability of organic substrate materials having an absorption peak between 300 and 800 nm in wavelength can be improved by the presence of a compound having the following general structural formula (I): ##STR1## wherein M represents Cu, Co, Ni, Pd or Pt; R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each represents a hydrogen or halogen atom, a cyano, an alkyl, an aryl, a cycloalkyl, or a heterocyclic group which may be substituted or unsubstituted and which is attached to the carbon atom in the benzene ring directly or through a divalent connecting group; alternatively, each of R.sub.1 and R.sub.2, R.sub.2 and R.sub.3, or R.sub.3 and R.sub.4 may combine to form the non-metallic atoms necessary to complete a 6-membered ring; and R.sub.5 represents a hydrogen atom or methyl.

Abstract: The stability of organic substrate materials having an absorption peak between 300 and 800 nm in wavelength can be improved by the presence of a compound represented by the following general formula (I), ##STR1## wherein M represents Cu, Co, Ni, Pd or Pt atom; Cat represents a divalent cation or two monovalent cations; X represents S or a ##STR2## group where R.sup.1 and R.sup.2 each represents a CN, a COR.sup.3, a COOR.sup.4, a CONR.sup.5 R.sup.6, or a SO.sub.2 R.sup.7 group and R.sup.1 may combine with R.sup.2 to form a 5- or 6-membered ring; R.sup.3, R.sup.4 and R.sup.7 each represents an alkyl or an aryl group, R.sup.5 and R.sup.6 each represents a hydrogen atom, an alkyl or an aryl group, and n represents an integer of 1 or 2.

Abstract: 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.

Abstract: A process for forming color photographic images using magenta couplers which afford excellent resistance to formalin, is described.

Abstract: A method of forming a color image comprising developing an imagewise exposed silver halide color photographic material with a developing solution containing an aromatic primary amine developing agent in the presence of at least one coupler represented by the following formula (I) or (II): ##STR1## wherein R.sub.1 represents a substituted or unsubstituted alkoxy group, an unsubstituted amino group, a substituted or unsubstituted alkylamino group, a substituted or unsubstituted arylamino group, or a substituted or unsubstituted N-alkylarylamino group; R.sub.2 represents a monovalent substituent; R.sub.3 represents a hydrogen atom, a substituted or unsubstituted alkyl group, or a substituted or unsubstituted aryl group, or R.sub.1 and R.sub.