Abstract: A color photographic silver halide light-sensitive material is described. The material contains a 5-pyrazolone magenta coupler represented by the general formula (I): ##STR1## (all the symbols are as defined in the appended claims). The compounds of the general formula (I) are novel couplers, and are chemically very stable and are particularly superior in two equivalency, sensitivity, and color density.

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 formula (I) ##STR1## wherein [Q] represents a magenta color image forming coupler residue; Za, Zb, Zc and Zd each represents a substituted or unsubstituted methine group, or --N.dbd.; R.sub.1 represents a hydrogen atom, a lower alkyl group, or a chlorine atom; A represents --NHCO--, --OCO--, or a phenylene group; Y represents --O--, --NH--, --S--, --SO--, --SO.sub.

Abstract: A silver halide photographic light-sensitive material is disclosed. The material has improved sensitivity and granularity as well as an increased gradient. Further, the material can be processed by rapid processing methods. The material is comprised of a support having positioned thereon a light-sensitive silver halide emulsion layer and a compound represented by the general formula (I):A-B (I)wherein A is residue of a compound capable of undergoing a coupling reaction with an oxidized primary amine developer, the residue being derived by eliminating a hydrogen atom from an active position of the compound. B is a group capable of being released through a coupling reaction to exert a fogging effect.

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 silver halide color photographic light-sensitive material comprising a support having thereon at least one silver halide emulsion layer is described, the color photographic light-sensitive material containing a coupler having at the coupling position thereof a group represented by formula (I) ##STR1## wherein Z represents an oxygen atom or a sulfur atom; R.sub.1 and R.sub.2 each represents a halogen atom, an alkyl group, an aryl group, an aralkyl group, an alkoxy group, an aryloxy group, a cyano group, a nitro group, a hydroxy group, a carboxy group, an alkoxycarbonyl group, an aryloxycarbonyl group, an alkylsulfonamido group, an arylsulfonamido group, an alkylsulfamoyl group, an arylsulfamoyl group, an acylamino group, an amino group, an alkylcarbamoyl group, an arylcarbamoyl group, an alkylsulfonyl group, an arylsulfonyl group, an alkylcarbonyl group or an arylcarbonyl group; X.sub.

Abstract: A dye-forming photothermographic element comprises in a binder, in reactive association,(a) photographic silver halide,(b) an image forming combination comprising(i) a reducible organic silver salt with(ii) a reducing agent selected from the group consisting of p-phenylenediamine, p-aminophenol, sulfonamidophenol, sulfonamidoaniline and hydrazone developing agents, and(c) a coupler which is capable of forming an image dye by reaction with the oxidized form of the reducing agent.In such a photothermographic element improvements are provided wherein the coupler has attached to the carbon atom at the coupling position either (A) a group --S--Dye, wherein Dye represents an image dye, or a blocked or shifted form thereof, and any necessary linking group, or (B) a moiety --S--Z, wherein Z represents atoms linking the sulfur atom to another position in the coupler. The exposed dye-forming photothermographic element is capable of forming a dye image by merely heating the element.

Abstract: A silver halide color photographic light-sensitive material containing at least one coupler having a ballast group represented by the following general formula (I): ##STR1## wherein ##STR2## represents a substituted or unsubstituted aromatic heterocyclic ring, and m represents an integer of 1 or 2.

Abstract: A silver halide color photographic material in which both a coupler capable of releasing a diffusible development restrainer by coupling and a polymer coupler latex are present to increase visual sharpness.

Abstract: A silver halide color photographic light-sensitive material comprising a support having thereon a silver halide emulsion layer containing at least one kind of compound represented by the following general formula (I): ##STR1## wherein each substituent represented by R.sub.1, R.sub.2, R.sub.3, X, or Ar and m are defined within the specification, said silver halide color photographic light-sensitive material comprises a compound represented by the following general formula (II) in the silver halide emulsion layer containing the compound represented by the above general formula (I) and/or a hydrophilic colloid layer which is positioned at the remoter side than the silver halide emulsion layer from the support: ##STR2## wherein each substituent represented by Y, R.sub.4, R.sub.5, R.sub.6, R.sub.7 or Ar is defined within the specification.

Abstract: In a silver halide color photographic material is disclosed. The material is comprised of a blue-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer, and a red-sensitive silver halide emulsion layer. The granularity of the material is improved by incorporating a non-diffusible coupler capable of forming a properly smearing diffusible dye by causing a reaction with the oxidation product of a color developing agent and a colorless competing compound capable of capturing the oxidation product of a color developing agent in at least one of the foregoing silver halide emulsion layers.

Abstract: A silver halide color photographic light-sensitive material comprising a support having coated thereon at least one silver halide emulsion layer, the color photographic light-sensitive material having at least one layer containing at least one kind of 5-pyrazolone type 2-equivalent magenta coupler represented by the following general formula (Ia): ##STR1## wherein W represents phenyl substituted with at least one halogen, alkyl, alkoxy, alkoxycarbonyl or cyano; Y represents acylamino or anilino; and Z represents aryloxy, alkoxy, heterocyclic oxy, alkylthio, arylthio, heterocyclic thio, acylthio, acylamino, sulfonamido, alkoxycarbonylamino, aryloxycarbonylamino or nitrogen containing heterocyclic ring which is bonded to the active position of the pyrazolone ring through the nitrogen atom, and at least one kind of compound represented by the following general formula (II): ##STR2## wherein R.sub.1 represents substituted or unsubstituted alkyl, aralkyl, cycloalkyl or alkenyl; R.sub.

Abstract: Silver halide photographic material having at least one light sensitive silver halide emulsion layer, at least one non-light sensitive hydrophilic colloidal layer, and optionally a third type of layer, wherein at least one of said emulsion layers, colloid layers, or third type of layers has, in a single layer, both a magenta coupler of Formula I and a development inhibitor releasing compound having a development inhibitor radical of Formula II or III, said Formula is wherein R.sub.1 is selected from benzamido, anilino, and phenylureido, each having a sulfonamido group and R.sub.2 is selected from aryl and heterocyclic groups; said Formula II is ##STR1## wherein R.sub.3 is selected from hydrogen, halogen, acylamino, alkyl, benzothiazolinylidenamino and phenyl substituted alkoxy; said Formula III is ##STR2## wherein X is a group of non-metallic atoms necessary to complete, together with the C.dbd.N group, a five or six membered heterocyclic ring.

Abstract: There is disclosed a light-sensitive silver halide color photographic material, comprising a group of silver halide emulsion layers constituting the same color sensitive layer, said group of emulsion layers consisting of at least two silver halide emulsion layers with different light sensitivities, the layer with the highest sensitivity incorporating at least one kind of a compound having a non-diffusion type coupler component and a scavenger component for an oxidized product of a color forming developing agent in an amount of 1 to 5 mole % per mole of the silver halide in the layer containing said compound.The light-sensitive silver halide color photographic material according to the present invention has high sensitivity and can provide high image quality with a broad latitude.

Abstract: A silver halide color photographic light-sensitive material is described comprising a support having thereon a silver halide emulsion layer containing a coupler having, at the coupling active position, a group which provides a compound having a development inhibiting property when the group is released from the coupling device position of the coupler upon the color development reaction and which is decomposed to a compound which does not substantially influence the photographic properties when the compound diffuses into a color developing solution.The silver halide color photographic light-sensitive material containing a novel class of development inhibitor releasing couplers provides color images of good sharpness and improved color reproduction without causing contamination of the processing solution.

Abstract: A silver halide color photographic material which is improved in granularity by containing both a gallic acid amide derivative represented by the following general formula (I) and a high speed reaction type coupler: ##STR1## wherein R.sup.1 and R.sup.2 each represents a hydrogen atom, a substituted or an unsubstituted aliphatic group, a substituted or an unsubstituted aromatic group, or a substituted or an unsubstituted heterocyclic group, and they may be the same group provided that they are not simultaneously hydrogen atoms, and, further, they may combine with each other to form a ring.

Abstract: A coupler containing in the coupling position a carbamoyloxy group ##STR1## upon oxidative coupling, releases a carbamic acid fragment that, in turn, is capable of thermally releasing ammonia or an amine. Such a carbamoyloxy substituted coupler and carbamic acid fragment are useful in imaging such as in photothermography and thermography. Ammonia or an amine released from the carbamic acid fragment enables imaging in imaging materials that are responsive to ammonia or an amine. The carbamoyloxy substituted coupler also generally is a dye-forming coupler that reacts with the oxidized form of a color developing agent to form a dye. An image is produced in an exposed photothermographic material comprising the carbamoyloxy substituted coupler by thermal development. An image is produced in a thermographic material comprising the carbamoyloxy substituted coupler and a color developing agent by imagewise heating the thermographic material.

Abstract: A silver halide color photographic light-sensitive material comprising a support having coated thereon at least one silver halide emulsion layer, the color photographic light-sensitive material containing at least one kind of 2-equivalent magenta coupler represented by the following general formula (Ia): ##STR1## wherein Ar represents phenyl substituted with at least one halogen, alkyl, alkoxy, alkoxycarbonyl or cyano; Y represents acylamino or anilino; and Z represents a group capable of being released by coupling, and at least one kind of piperidine compound represented by the following general formula (II): ##STR2## wherein R.sub.1 represents hydrogen or alkyl; R.sub.2 represents alkyl, hydroxyalkyl, alkenyl alkynyl or benzyl; W represents hydrogen, alkyl, hydroxy, silyloxy, alkylamino, aryloxy, allyl, alkoxy, acylamino, sulfonamido, alkoxycarbonyl, carboxy, acyloxy or phosphoric acid oxy.

Abstract: The present invention relates to compounds of the type comprising a ballasting group which renders said compounds substantially fast to diffusion in hydrophilic colloid media and at least one photographically useful group which is chemically linked to said ballasting group, and to photographic elements containing at least one compound of the type referred to.The ballasting groups in the compounds according to the present invention are derived from mono- or di-esters or -ethers of glycerol. The linkage between ballasting group and photographically useful group can be realized via acid chlorides which are derived from the above-said glycerol derivatives.

Abstract: A color photographic material comprising on a support a first silver halide emulsion layer containing a yellow coupler, a second silver halide emulsion layer containing a magenta coupler, a third silver halide emulsion layer containing a cyan coupler, said third emulsion layer being positioned farthest from the support, a first non-light-sensitive layer formed on one side of said third emulsion layer opposite to the support, and a second non-light-sensitive layer formed on the other side of said third emulsion layer, at least said first non-light sensitive layer containing a UV absorber.

Abstract: A color photographic light-sensitive material comprising a support having thereon a green-sensitive silver halide emulsion layer containing a magenta dye forming coupler represented by the following general formula (I) ##STR1## wherein R.sup.4 represents a halogen atom, a substituted or unsubstituted alkyl group or a substituted or unsubstituted alkoxy group; R.sup.5 represents a hydrogen atom, a halogen atom, a nitro group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group or a substituted or unsubstituted acylamino group; R.sup.6 represents a hydrogen atom, a halogen atom or a mono-valent organic residue; X represents a hydrogen atom or a group capable of being released upon coupling and exhibiting a two-equivalent property; and n represents an integer from 1 to 5 and when n represents 2 or more, R.sup.

Abstract: A silver halide color photographic light-sensitive material comprising a support having thereon a layer containing at least one copolymer coupler latex having a layered structure capable of forming a dye upon coupling with an oxidation product of an aromatic primary amine developing agent. The polymer coupler latex having a layered structure has an exceptionally good color forming property and is capable of forming a dye with a high yield and without the formation of undesired stains and fogs. The silver halide color photographic light-sensitive material containing the polymer coupler latex has good film strength and a reduced layer thickness and provides a color image having an improved sharpness. A method of forming a color image using the silver halide color photographic light-sensitive material is also disclosed.

Abstract: Photographic couplers comprising a coupler moiety and a ballast moiety have advantageous properties when the ballast moiety is terminated with a hydroxyphenylsulfonyl or hydroxyphenylsulfinyl group. The couplers are useful in photographic emulsions and element.

Abstract: There is disclosed a novel silver halide photosensitive color photographic material comprising a coupler which consists of a coupling component (A) which is capable of causing a coupling reaction with an oxidized color developing agent and a substituent component bonded at the coupling position of said coupling component (A), which substituent component is capable of being split off on coupling reaction, the improvement characterized in that said substituent comprises a coupling component (B) which can undergo coupling reaction with an oxidized color developing agent when released from said coupling component (A) and a photographically useful component which is capable of being released on coupling reaction of said coupling component (B).The color photographic material according to the present invention provides graininess, sharpness and color reproducibility which is sufficiently competent to the requirement of further miniturization of film size by use of a coupler having novel functions.

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 homopolymer or copolymer having a repeating unit derived from a monomer coupler represented by the following general formula (I): ##STR1## wherein R.sub.1 represents hydrogen, a lower alkyl group containing from 1 to 4 carbon atoms or a chlorine atom; R.sub.2 and R.sub.3, which may be the same or different, each represents an unsubstituted or substituted alkylene group which may be a straight chain or a branched chain, an unsubstituted or substituted arylene group or an unsubstituted or substituted aralkylene group; X represents --CONH-- or --COO--; Y represents --O--, --S--, --SO--, --SO.sub.2 --, --CONH-- or --COO--; Ar represents an unsubstituted or substituted phenyl group; R.sub.

Abstract: A color photographic recording material, in which a precursor compound for a yellow mask coupler is contained in a green-sensitive layer or in a layer adjacent thereto and in which a blue-sensitive layer is arranged between this layer and the layer support, permits very good sharpness with satisfactory speed.

Abstract: A silver halide photographic light-sensitive material which comprises at least one of those pyrazole compounds represented by the following general formula: ##STR1## wherein A is a group which can be eliminated in a photographic process condition; X is ##STR2## wherein R.sub.5 is a hydrogen atom or an alkyl, an aryl, an acyl or a sulfone group, which R.sub.5 group may combine together with R.sub.1 to form a condensed ring; R.sub.1 is a hydrogen atom or an alkyl, an aryl, an acyl, a sulfone, an alkoxy, or a heterocyclic residue; R.sub.2 is a hydrogen atom or an alkyl, an aryl, an alkoxy, an amino, an acid amide, a sulfonamide, a carboxyl, an alkoxycarbonyl, a carbamoyl, a cyano, or a halogenated alkyl group, R.sub.3 and R.sub.

Abstract: Granularity of silver halide photographic materials is reduced by employing a coupler which yields a dye of such mobility that controlled image smearing occurs.

Abstract: A silver halide color photographic light-sensitive material containing a magenta color image forming polymer coupler latex and at least one compound represented by the following general formula (I) ##STR1## wherein R represents an alkyl group, an alkenyl group, an aryl group, a heterocyclic group, a R.sub.4 CO-- group, a R.sub.5 SO.sub.2 -- group or a R.sub.6 NHCO-- group; R.sub.1 and R.sub.2, which may be the same or different, each represents a hydrogen atom, a halogen atom, an alkyl group, an alkenyl group, an alkoxy group or an alkenoxy group; R.sub.3 represents a hydrogen atom, an alkyl group, an alkenyl group or an aryl group; and R.sub.4, R.sub.5 and R.sub.6 each represents an alkyl group, an alkenyl group, an aryl group or a heterocyclic group.

Abstract: Compounds corresponding to the following general formula ##STR1## wherein R.sup.1 represents hydrogen, an aliphatic or cycloaliphatic group, an aralkyl group, an aryl group, a heterocyclic group or one of the following groups: --CO--alkyl, --CO--aryl, --CO--heterocyclic group, --SO.sub.2 --alkyl, --SO.sub.2 --aryl, --CO--O--alkyl, --CO--NH--NH.sub.2, ##STR2## and R.sup.2 represents hydrogen, an aliphatic or cycloaliphatic group, an aralkyl group, an aryl group, alkoxy, aroxy, carboxyl, carbamoyl, alkoxycarbonyl, an alkyl or aryl group attached through a carbonyl group, cyanogen, an amino group optionally substituted by alkyl, aralkyl, aryl or acyl, or a cyclic amino groupmay be used as additives in the layers of color photographic recording materials to improve the stability of color couplers, in particular magenta couplers, against formaldehyde.

Abstract: A silver halide color photosensitive material is described, containing a 4-arylthio-5-pyrazolone coupler and comprising a layer containing an emulsion of fine silver halide particles.

Abstract: A silver halide photographic material containing a coupler capable of releasing a photographically useful group in a controllable timing.

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: Couplers of good reactivity contain an aryloxy coupling-off group having in an ortho position a polarizable carbonyl, sulfonyl or phosphinyl substituent group which is free of photographic dye groups and photographic reagent groups.

Abstract: A silver halide photographic light-sensitive material is described comprising a layer containing a coupler compound represented by formula (I)A--B (I)wherein A represents a residue of a compound capable of undergoing a coupling reaction with an oxidation product of an aromatic primary amine developing agent, by the removal of one hydrogen atom from the active position of said compound, and B represents a group which is released by the coupling reaction and exhibits a development accelerating function.

Abstract: A silver halide color photographic light-sensitive material is described containing a magenta color image forming polymer coupler latex and at least one compound represented by the following general formula (I) ##STR1## wherein R represents an alkyl group; and R.sub.1 and R.sub.2 each represents a tertiary alkyl group and R.sub.1 and R.sub.2 may be the same or different. The disclosed silver halide color photographic light-sensitive material has good film strength, a reduced layer thickness and provides a stable magenta image having an improved sharpness and fastness to light while preventing the formation of yellow stain in non-image areas. A method of forming a color image using the silver halide color photographic light-sensitive material is also described.

Abstract: A light-sensitive, color photographic silver halide multilayer material contains for the improvement of definition, grain and color rendition DIR-couplers which are substituted in coupling position by mercapto-azole-, mercaptobenz-azole- or mercapto-azine moieties, which themselves carry hydrophilic substituents. The DIR-couplers according to the invention may be used together with other couplers and additives or as sole color forming element and are noteworthy for their high color yields, inter- and intra-image effects. They may be added as well in hydrophobic state (in dispersed form) as in hydrophilic state (as alkaline solutions) and they may be used in single layers or as associated layers with a maximum three layers of a color forming unit and the layers may be arranged in any desired order within the whole combination of layers.

Abstract: A silver halide color photographic sensitive material is disclosed. The material is comprised of at least one 4-(2-alkoxyarylthio)-5-pyrazolone magenta dye forming coupler and at least one compound represented by general formula (I): ##STR1## wherein each R represents an alkyl group, an alkenyl group, an aryl group, a 5- or 6-membered heterocyclic group having an oxygen atom or a nitrogen atom as a hetero atom, R.sub.4 CO--, R.sub.4 SO.sub.2 -- or R.sub.4 NHCO--, R.sub.1 and R.sub.2 each represents a hydrogen atom, a halogen atom, an alkyl group, an alkenyl group, an alkoxy group or an alkenoxy group and R.sub.3 represents a hydrogen atom, an alkyl group, an alkenyl group or an aryl group, wherein R.sub.4 represents an alkyl group, an alkenyl group, an aryl group or a heterocyclic group.The material can be used to form a color image with improved light and heat fastness.

Abstract: A silver halide color photographic light-sensitive material comprising a support having thereon a silver halide emulsion layer containing at least one coupler represented by the following general formula (I): ##STR1## The substituents are disclosed in the specification. The silver halide color photographic light-sensitive material in which a specific class of 1-phenyl-3-anilono-4-phyenylthio-5-pyrazolone type two-equivalent magenta color image forming couplers and a specific class of 1-phenyl-3-pyrazolidone derivatives are used in association with each other can provide a magenta color image of high sensitivity without increasing the fog level. A method for developing the material is also disclosed.

Abstract: A silver halide color photographic light-sensitive material is described comprising a support having thereon a silver halide emulsion layer containing a 2-equivalent 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 formula (I) ##STR1## wherein R represents a hydrogen atom, a lower alkyl group containing from 1 to 4 carbon atoms or a chlorine atom; X represents --CONH--, --NH--, --NHCONH-- or --NHCOO--; Y represents --CONH-- or --COO--; A represents an unsubstituted or substituted alkylene group which may be a straight chain or a branched chain or an unsubstituted or substituted phenylene group; Ar represents an unsubstituted or substituted phenyl group; Za, Zb, Zc and Zd can each represent a methine group, a substituted methine group or -N.dbd.; m represents 0 or 1; and n represents 0 or 1.

Abstract: A silver halide color photographic light-sensitive material is described comprising a support having thereon at least one silver halide emulsion layer, said photographic material containing a 5-pyrazolone magenta coupler substituted with a tertiary alkanamido group at the 3-position thereof.

Abstract: As silver is the most expensive individual component in photographic film, it is desirable to reduce the quantities of silver in such materials. The addition of a certain class of phenolic derivatives has been found to enhance the contrast generated by dyes in color photographic emulsions. Emulsions containing these phenolic compounds can use less silver and produce the same optical density as emulsions with higher silver concentrations.

Abstract: A light-sensitive silver halide photographic emulsion characterized by containing a combination of at least one sensitizing dye represented by formula (I) and at least one sensitizing dye represented by formula (II). ##STR1## A silver halide color photographic light-sensitive element comprising a support having thereon at least one light-sensitive emulsion layer comprising a sensitizing dye represented by formula (I) and a sensitizing dye represented by formula (II) is also described.

Abstract: A color photographic material having a light-sensitive silver halide emulsion layer containing a DIR compound having an amino group and a DIR compound having no amino group.

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 color photographic light-sensitive element comprising a support having thereon a silver halide emulsion layer containing therein a 3-anilino-5-pyrazolone magenta-color-forming coupler represented by the following general formula (I): ##STR1## wherein ##STR2## (an N-substituted acylamino group) is present at the 4- or 5-position of the anilino group; R.sub.1 represents a substituted or unsubstituted alkyl group, an alkenyl group, a cycloalkyl group, a cycloalkyl, a cycloalkenyl group or an aralkyl group; R.sub.2 represents an aliphatic hydrocarbon group, a heterocyclic group or an aryl group; X represents a halogen atom or an alkoxy group; Z represents hydrogen or a coupling-off group; and Ar represents an aryl group.The 3-anilino-5-pyrazolone magenta-color-forming coupler is useful in preventing the formation of yellow stain due to light irradiation in unexposed areas of a color photographic light-sensitive element after color development processing.

Abstract: A high boiling solvent useful in silver halide materials is described by the following general formula: ##STR1## wherein R.sub.1 represents an alkyl radical, and each of R.sub.2 and R.sub.3 represent an aryl radical.

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 color photographic light-sensitive material is described, comprising a support having thereon a silver halide emulsion layer containing at least one coupler represented by formula (I) ##STR1## wherein R.sub.1 represents an anilino group, an acylamino group or a ureido group, R.sub.2 represents an aralkyl group, an alkyl group, or an alkenyl group, X.sub.1, X.sub.2, and X.sub.3 each represents hydrogen, an alkyl group, a halogen atom, an alkoxy group, an aryloxy group, an acylamino group, a carbamoyl group, a sulfamoyl group, a sulfonyl group or a cyano group and X.sub.1, X.sub.2, and X.sub.3 may be the same or different, and at least one of said silver halide emulsion layer and a hydrophilic colloid layer adjacent thereto containing a 1-phenyl-3-pyrazolidone compound having a diffusion resistant group in the presence of an organic solvent having a high boiling point for a photographic additive.The photographic light-sensitive material provides a magenta color image having a high sensitivity.

Abstract: A color photographic material having a light-sensitive silver halide emulsion layer containing a DIR compound having an amino group and a DIR compound having no amino group.