Abstract: A cyan coupler for color photographic use and, particularly, to a photographic coupler forming a dye image excellent in durability against heat, humidity and light is disclosed. A silver halide emulsion layer contains a compound represented by general formula 1, ##STR1## wherein R represents substituents; m represents an integer of 0 or 1 to 6, when m is 2 to 6, plurality of Rs are identical or different; Y and Z are substituents having a Hammett's substituent constant .sigma.p 0.3 to 1.5 and are identical or different; X represents a hydrogen atom or a substituent which is released by a reaction of an oxidized product of a color developing agent.

Abstract: A silver halide color photographic material comprising a support having thereon at least one sensitive silver halide emulsion layer, wherein the emulsion layer contains a coupler represented by the following general formula (I) ##STR1## wherein X represents a non-metallic atomic group required for forming a heterocyclic ring together with a residue of the formula ##STR2## Y represents a group which is eliminated by coupling and has substantially no photographic effect and Z represents an electron attractive group (a substituent group having a value of at least 0.2 in terms of Hammett's .sigma.m substituent constant).

Abstract: A silver halide photographic light-sensitive material which contains a noble 2-equivalent yellow coupler having an excellent color forming property and an improved dispersion stability in emulsion is disclosed.

Abstract: A silver halide photographic light-sensitive material is disclosed, which contains a novel yellow coupler in its silver halide emulsion layer. The yellow coupler is represented by the following Formula I: ##STR1## wherein Y is a hydrogen bond donating group; R is an alkyl group, an aryl group or a heterocyclic group; R.sub.3 is a halogen atom, a hydroxyl group, a nitro group or a monovalent organic group; m is an integer of 0 to 4, provided that the groups represented by R.sub.3 may be the same or different when m is 2 or more; and Z is a hydrogen atom or a substituent capable of splitting off upon reaction with the oxidation product of an aromatic primary amine color developing agent.

Abstract: Where DIR couplers corresponding to formula I are used in color photographic silver halide materials, good edge effects and interimage effects are obtained. ##STR1## In formula (I), A represents halogen, --OR, --SR, --CN, --COR, --CONHR, --COOR, --SO.sub.2 R, --SO.sub.2 NHR, ##STR2## R represents alkyl, aralkyl, aryl or hetaryl; Q represents a substituent for compelting a 5- or 6-membered heterocyclic ring;D and E, which may be the same or different, represent substituents attached to the C atom of the C.dbd.N group by a C, O, S or N atom, including those substituents which, together with the C atom of the C.dbd.N group, complete a carbocyclic or heterocyclic ring;Y represents a group having a silver halide development inhibiting function which is releasable during color development.

Abstract: In a color print containing cyan, magenta and yellow colored dyes, the color print where the spectral absorption peak wave lengths of the respective colored dyes lie in the range represented by the following formula:1/2(.lambda.y+.lambda.c).gtoreq..lambda.m.gtoreq.1/2(.lambda.y+.lambda.c)-1 0.lambda.c=Spectral absorption peak wave length (nm) of the colored cyan dye.lambda.m=Spectral absorption peak wave length (nm) of the colored magenta dye.lambda.y=Spectral absorption peak wave length (nm) of the colored yellow dyeIn the color print, improvement of the color reproduction and improvement of the observation light source dependency, which hitherto tend to conflict with each other, can be attained at the same time.

Abstract: A silver halide light-sensitive color photographic material which is capable of forming a dye image of improved spectral absorption characteristic, resulting in the improved color reproducibility as well as in the image preservability and which has a high maximum density is disclosed. The material comprises a green-sensitive silver halide emulsion layer containing a magenta coupler having the following Formula [M-I], ##STR1## wherein Z, X and R is as defined in the description; and a blue-sensitive silver halide emulsion layer contains a yellow coupler having the following Formula [Y-I]; ##STR2## wherein R.sub.21, R.sub.22, R.sub.23, n, R.sub.24, J and X.sub.1 are respectively as defined in the description.

Abstract: A photosensitive member suitable for multi-color image formation is obtained by forming a plurality of photosensitive layers laminated on a substrate. Each photosensistive layer comprises a matrix phase and particles dispersed therein. The matrix phase contains a photosensitive silver salt, an organic silver salt and a reducing agent which react with each other on exposure and heating to form a light-absorbing organic compound. The particles contain a heat-diffusive colorant, a polymerizable polymer precursor and a photopolymerization initiator. The light-absorbing organic compound in a photosensitive layer being capable of absorbing a wavelength of light to which the photopolymerization initiator in the photosensitive layer is sensitive. Because the heat-diffusive colorant, the polymerizer and the initiator are contained in the particles, the diffusion of the heat-diffusive colorant can be effectively controlled to prevent color fog.

Abstract: A method for making a color proof in a photo-mechanical process. The method comprises a step for exposing a silver halide color photographic light-sensitive material to light through a black-and-white halftone dot image, and a step for developing said silver halide color photographic light-sensitive material with a color developer. The photographic material is comprised of at least three silver halide emulsion layers which are different from each other in spectral sensitivity thereof, and at least one of these silver halide emulsion layers contains a specific yellow coupler and the color developer contains a specific color developing agent. A halftone color image having a color tone similar to that of image printed with printing inks can be obtained by the simplified process.

Abstract: A silver halide light-sensitive photographic material comprising a support and, provided thereon, at least one silver halide emulsion layer containing a dye-forming coupler of Formula [I]: ##STR1## wherein R.sub.1 is an alkyl group or a cycloalkyl group; R.sub.2 is an alkyl group, a cycloalkyl group, an acyl group or an aryl group; R.sub.3 is a group which is substituted to a benzene ring; n is an integer of zero or 1; R.sub.4 is an organic group containing one linkage group containing a carbonyl unit or a sulfonyl unit; J is a ##STR2## wherein R.sub.5 is a hydrogen atom, an alkyl group, an aryl group or a heterocyclic group; and X.sub.1 is a group capable of being split off upon reaction with the oxidation product of a color developing agent.

Abstract: A photographic coupler containing an aryloxysilyl group (--X--O--Y) wherein X is substituted or unsubstituted arylene and Y is a silyl group) is useful in photographic silver halide elements and processes. Such a photographic coupler enables improved dispersibility and improved photographic properties.

Abstract: A negative-working silver halide color photographic material is disclosed which has at least one silver halide emulsion layer on a support, said material including a pyrazolotriazole-based magenta coupler and means for forming an unsharp positive image.

Abstract: A silver halide color photographic material is described comprising a support having thereon at least one silver halide emulsion layer, wherein the silver halide color photographic material contains a water-soluble polymer comprising at least one repeating unit represented by formula (I) ##STR1## wherein A represents a vinyl repeating unit having a color coupler moiety which is capable of forming a dye upon coupling with an oxidation product of an aromatic primary amine developing agent;and at least one repeating unit selected from the group consisting of formulae (II-A), (II-B), (II-C), (II-D), (II-E), and (II-F): ##STR2## The water-soluble polymer is a photographic polymeric coupler incorporating a crosslinkable group with gelatin and the silver halide color photographic material containing the water-soluble coupler is excellent in layer strength and image sharpness.

Abstract: A silver halide light-sensitive photographic material comprising a support and provided thereon at least one silver halide emulsion layer containing a yellow dye-foming coupler having a formula [A] below and a high boiling organic solvent having a dielectric constant of not more than 6.0; ##STR1## wherein R.sub.1 represents a halogen atom or an alkoxy group having 1 to 4 carbon atoms; R.sub.2 represents a hydrogen atom, a halogen atom, an alkyl group or an alkoxy group; R.sub.3 and R.sub.4 independently represent an alkyl group which is capable of making said coupler non-diffusible in the photographic material; X.sub.1 represents a tertiary butyl group or a p-alkoxy phenyl group; X.sub.2 represents a hydrogen atom or a group which is capable of being split off during color development; and X.sub.3 represents a linking group.

Abstract: Solid photographic addenda, such as photographic color couplers or sensitizing dyes, which are wet with occluded organic liquid, after being subjected, for example, to processes such as crystallization or washing, are contacted with an extractant composed of carbon dioxide in liquid form or in the form of a supercritical fluid to remove the organic liquid. The process is capable of use with any solid photographic addendum which is insoluble in the extractant and any organic liquid which is soluble in the extractant. It can be completed much more quickly than conventional processes in which such solids are dried with the aid of heat and/or vacuum, while effectively avoiding problems of clumping and thermal degradation which commonly occur in dryers. It provides a product that is capable of meeting the demanding requirements of the photographic art with respect to both physical and chemical characteristics.

Abstract: A photographic support comprising a paper sheet coated with a polyolefin on both surfaces thereof, in which the paper sheet contains an alkylketene dimer mixtures, its alkyl chain composition being defined by the following equation: ##EQU1## in which [C.sub.14 and less] means the content of alkyl chains having carbon atoms of 14 and less; [C.sub.16 ] means the content of an alkyl chain having 16 carbon atoms; [C.sub.18 ] means the content of an alkyl chain having 18 carbon atoms; and [C.sub.20 and more] means the content of alkyl chains having carbon atoms of 20 and more, the alkyl chain contents being represented by % in number of the total alkyl chain content of the alkylketene dimer composition. The photographic support is effectively resistant to permeation of a developing solution.

Abstract: The invention provides a method of forming a dispersion of base degradable hydrophobic component for a photographic system. The invention is accomplished by mixing the component, solvent, and surfactant, at an elevated temperature if necessary, metering the mixture of solvent, surfactant, and hydrophobic component to an excess of water with agitation so as to precipitate from the water solvent solution small particles of the hydrophobic component. The small particles then form a stable dispersion, after washing by dialysis or diafiltration, that will not agglomerate during storage prior to use. The preferred photographic component for use in the system of the invention is an ester terminated photographic coupler that would decompose if subjected to the high pH treatment of prior art procedures.

Abstract: A silver halide color photographic light-sensitive material comprising a support having provided thereon one or more blue-sensitive layers each containing a yellow coupler, one or more green-sensitive layer each containing a magenta coupler, one or more red-sensitive layers each containing a cyan coupler, and one or more protective layers provided on the side of the support and further from the support than the color-sensitive layer which is furthest away from the support, the thickness of the total photographic layers provided on the support from the color-sensitive layer located closest to the support to the protective layers, inclusive, being 18 .mu.

Abstract: A color image-forming process is disclosed, which comprises imagewise exposing a silver halide color photographic material comprising a support having thereon at least one light-sensitive layer containing at least one coupler capable of forming a dye upon a reaction with an oxidation product of an aromatic primary amine color developing agent and a silver halide emulsion spectrally sensitized with a dye represented by the following general formula (I), (II) or (II), substantially excluding silver iodide, and containing about 80 mol % or more silver chloride, processing the exposed photographic material with a color developer, then processing it with a solution having a pH of not more than about 6.5 and having a bleaching ability within about 75 seconds: ##STR1## wherein the symbols have the meanings described hereinafter. A silver halide color photographic material to be processed in accordance with the method described above is also disclosed.

Abstract: A silver halide color photographic material containing new dye image-forming couplers consisting of polymer couplers obtained by a polymerization reaction which employs a chain transfer agent having 8 or more carbon atoms. The silver halide color photographic material exhibits a high sensitivity and a high color-forming property.

Abstract: A silver halide photographic material is disclosed which comprises a support coated with photographic layers including one or more silver halide emulsion layers, at least one of said silver halide emulsion layers containing silver halide grains with a silver iodide content of 3.0-15 mol %, and at least one of said photographic layers containing a compound represented by the following general formula (I): ##STR1## where Y is an aromatic group or a 5- or 6-membered heterocyclic group.

Abstract: A color photographic recording material having at least one silver halide emulsion layer contains at least one coupler corresponding to the general formula I ##STR1## wherein K represents a coupler group,L a direct bond of a linking member,R.sup.1 alkyl, aralkyl, aryl or amino andR.sup.2 hydrogen or a group -L-K.The couplers of formula I are suitable for high temperature processing without the presence of benzyl alcohol.

Abstract: Novel cyano substituted photographic couplers are represented by the formula: ##STR1## wherein m, R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and Z are as defined in the specification. These couplers enable effective magenta dye formation upon reaction with an oxidized color photographic silver halide developing agent. The couplers are useful in photographic silver halide materials and processes.

Abstract: A color photographic recording material containing a coupler which releases a photographically active compound.Couplers corresponding to formula (I) couple with color developers to form yellow to yellow-orange dyes and, in doing so, release the residue X as a photographically active compounds. Where X is a development inhibitor, remarkably high inter-image and edge effects can be obtained. ##STR1## in which R.sup.1 represents alkyl, a heterocyclic or carbocyclic aromatic group or -NH-CO-R.sup.2 ;R.sup.2 represents alkyl, aryl or -NH-R.sup.3 ;R.sup.3 represents alkyl or aryl;Q represents the groups to complete a fused, optionally substituted benzene or heterocyclic ring;X represents the residue of a photographically active compound;TIME represents a bond which, on reaction of the coupler with the oxidation product of a color developer, is released together with the residue X attached thereto and, in turn, releases the residue X as a photographically active compound under the development conditions;n=0 or 1.

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 photographic support comprising a paper sheet coated with a polyolefin on both surfaces thereof, in which the paper sheet contains an alkyletene dimer mixtures, its alkyl chain composition being defined by the following equation: ##EQU1## in which [C.sub.14 and less] means the content of alkyl chains having carbon atoms of 14 and less; [C.sub.16 ] means the content of an alkyl chain having 16 carbon atoms; [C.sub.18 ] means the content of an alkyl chain having 18 carbon atoms; and [C.sub.20 and more] means the content of alkyl chains having carbon atoms of 20 and more, the alkyl chain contents being represented by % in number of the total alkyl chain content of the alkylketene dimer composition. The photographic support is effectively resistant to permeation of a developing solution.

Abstract: A silver halide color photographic material is disclosed, comprising a support having provided thereon a red-sensitive layer, a green-sensitive layer, and a blue-sensitive layer, in which at least one of couplers represented by the formulae (I) and/or (II), at least one of couplers represented by the following formula (III), and at least one of couplers represented by the following formula (IV) are respectively incorporated in the light-sensitive layers different from each other in color sensitivity: ##STR1## wherein: R.sub.1, R.sub.2, R.sub.4 each represents a substituted or unsubstituted aliphatic, aromatic or heterocyclic group;R.sub.3, R.sub.5, and R.sub.6 each represents a hydrogen atom, a halogen atom, an aliphatic group, an aromatic group, or an acylimino group or, when taken together, R.sub.3 and R.sub.2 represent non-metallic atoms necessary for forming a nitrogen-containing 5- or 6-membered ring;R.sub.7 represents an alkoxy group, an aryloxy group, or a heterocyclic oxy group;R.sub.

Abstract: A light-sensitive material package unit having an exposure function is disclosed, in which said light-sensitive material comprises a support having provided thereon at least one red-sensitive silver halide emulsion layer containing at least one cyan coupler, at least one green-sensitive silver halide emulsion layer containing a magenta coupler, and at least one blue-sensitive silver halide emulsion layer containing a yellow coupler; at least one of said light-sensitive emulsion layers is composed of at least two layers being substantially the same in color sensitivity and different in sensitivity; and said light-sensitive emulsion layer composed of at least two layers contains a compound represented by formula (I)A--L.sub.1).sub.b Z.sub.1 (I)wherein A represents a component capable of releasing --(L.sub.1).sub.b Z.sub.1 upon reacting with an oxidation product of a color developing agent; L.sub.1 represents a timing group; Z.sub.

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 color image-forming process is disclosed, which comprises imagewise exposing a silver halide color photographic material comprising a support having thereon at least one light-sensitive layer containing at least one coupler capable of forming a dye upon a reaction with an oxidation product of an aromatic primary amine color developing agent and a silver halide emulsion spectrally sensitized with a dye represented by the following general formula (I), (II) or (III), substantially excluding silver iodide, and containing about 80 mol % or more silver chloride, processing the exposed photographic material with a color developer, then processing it with a solution having a pH of not more than about 6.5 and having a bleaching ability within about 75 seconds: ##STR1## wherein the symbols have the meanings described hereinafter. A silver halide color photographic material to be processed in accordance with the method described above is also disclosed.

Abstract: Novel photographic acetanilide dye-forming couplers comprise a group comprising a stabilizer moiety represented by the formula: ##STR1## wherein R.sup.2 is halogen or alkoxy having 1 to 4 carbon atoms; R.sup.3 is hydrogen, halogen, alkyl or alkoxy; R.sup.4, R.sup.5, R.sup.6 and R.sup.7 are individually alkyl; ##STR2## R.sup.8 and R.sup.9 are individually hydrogen or alkyl; R.sup.10 is hydrogen, alkyl or aryl; and X is a linking group. Such couplers provide advantageous stability in dyes formed from the couplers. These couplers are useful in photographic silver halide materials and processes.

Abstract: A method for processing a silver halide color photographic material is disclosed, which comprises processing an imagewise exposed silver halide color photographic material comprising a support having thereon at least one silver halide emulsion layer comprising silver chloride or silver chlorobromide containing at least 80 mol % of silver chloride with a color developing solution and thereafter processing the material with a bleach-fixing solution, wherein the bleach-fixing solution contains a ferric complex salt of an organic acid and from about 1.times.10.sup.-2 to about 2 mol of bromide ions and/or from about 5.times.10.sup.-4 to about 5.times.10.sup.-2 mol of iodide ions per liter.The method for processing a silver halide color photographic material according to the present invention is excellent in desilvering ability, and enables rapid processing to be conducted.

Abstract: A double coated radiographic element is disclosed comprised of a dye coated between an emulsion layer and a support to reduce crossover to less than 10 percent. The dye is present in the form of microcrystalline particles, yet is capable of being decolorized in less than 90 seconds during processing.

Abstract: A silver halide photographic material comprising a support having thereon at least one silver halide emulsion layer, wherein the silver halide photographic material contains at least one compound represented by the following general formula (I):A--Time).sub.t X (I)wherein A represents an oxidation reduction moiety comprising an atomic group which does not enable --Time).sub.t X to be released until the oxidation reduction moiety is oxidized during photographic development processing; Time represents a timing group which is connected to A through a sulfur atom, a nitrogen atom or an oxygen atom; t represents an integer of 0 or 1; and X represents a group represented by the following general formula (II): ##STR1## wherein R represents a straight chain or branched chain alkylene group, a straight chain or branched chain alkenylene group, a straight chain or branched chain aralkylene group or an arylene group; Z represents a polar substituent; Y represents ##STR2## R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.

Abstract: A photographic silver halide emulsion is disclosed, comprising high silver chloride content tabular grains wherein at least 50 mol % of the silver halide is silver chloride and at least 50%, based on the total projected area of emulsion grains, are tabular grains having a ratio of diameter corresponding to a circle of the projected area to thickness of from 2/1 to 10/1.

Abstract: Disclosed is a light-sensitive silver halide color photographic material comprising a light-sensitive multi-layer color photographic material having at least each one layer of blue-sensitive layer, green-sensitive layer and red-sensitive layer on a support, wherein;at least one blue-sensitive layer contains at least one kind of benzoyl type couplers,at least one green-sensitive layer contains at least one kind of pyrazoloazole type couplers, andat least one red-sensitive layer contains at least one kind of ureido type couplers.According to this invention, it is possible to obtain a light-sensitive material which has broad exposure latitude and is excellent in gradation characteristic, or a light-sensitive material which has broad exposure latitude and is excellent in graininess, or a light-sensitive material which has broad exposure latitude, is excellent in graininess and also good in a desilverization performance during processing.

Abstract: A photographic material comprising at least one blue sensitive silver halide emulsion layer is disclosed. The silver density of the emulsion layer is not less than 4.0.times.10.sup.-1 g/cm.sup.3 and the dry thickness of the layer is not more than 4.0 .mu.m. A core/shell type silver halide emulsion and a high-speed reaction type scavenger for the oxidation products of a developing agent are preferably used for the emulsion layer. The photographic material has a high sensitivity and provides an image having a superior sharpness and resolution.

Abstract: Novel photographic acetanilide dye-forming couplers comprise a group comprising a stabilizer moiety represented by the formula: ##STR1## wherein R is halogen or alkoxy having 1 to 4 carbon atoms; R.sub.1 is hydrogen, halogen, alkyl or alkoxy; R.sub.2 and R.sub.3 are individually alkyl; and, X is a linking group. Such couplers provide advantageous stability in dyes formed from the couplers. These couplers are useful in photographic silver halide materials and processes.

Abstract: A process for processing a silver halide color photographic material is described, comprising developing an imagewise exposed light-sensitive material and then bleach-fixing it, wherein the light-sensitive material contains at least one sensitizing dye selected from three particular types of sensitizing dye compounds, and a bleach-fixing solution contains iodide ions in an amount exceeding 1.2.times.10.sup.-3 gram ion per liter of solution.

Abstract: In a light-sensitive direct posi silver halide color photographic material having photographic constituent layers comprising at least one silver halide emulsion layer containing latent image type silver halide grains not previously fogged, which is capable of giving a direct posi image by subjecting the whole surface to exposure or effecting surface development in the presence of a fogging agent, after image exposure, the improvement wherein said internal latent image type silver halide grains are composed of at least two groups of internal latent image type silver halide grains having average grain sizes different from each other, and at least one compound capable of releasing a development inhibiting substance or its precursor through the reaction with the oxidized product of a color developing agent is contained in at least one layer of said photographic constituent layers.

Abstract: A silver halide color photographic light-sensitive material comprising a support having formed thereon at least one red-sensitive emulsion layer, at least one green-sensitive emulsion layer, and at least one blue-sensitive emulsion layer is disclosed. The material cotains a novel combination of cyan, magenta, and yellow couplers and has improved color forming properties, color reproducibility, and image preservability.

Abstract: A silver halide color photographic light-sensitive material comprising a support having formed thereon at least one red-sensitive emulsion layer, at least one green-sensitive emulsion layer, and at least one blue-sensitive emulsion layer is disclosed. The material contains a novel combination of cyan, magenta, and yellow couplers and has improved color forming properties, color reproducibility, and image preservability.

Abstract: A silver halide photographic light-sensitive material improved in the color fastness of yellow dye images against light is disclosed. The photographic material comprises a silver halide emulsion layers containing a compound represented by General Formula [I] and a yellow coupler represented by General Formula [II]: ##STR1## wherein J is an alkylene group, R.sub.1 through R.sub.3 are each substituents and n is an integer 1 to 3, ##STR2## wherein R.sub.11 and R.sub.12 are each a hydrogen atom or substituents and R.sub.13 is a hydrogen atom or a substituent and Z.sub.1 is a group capable of being splitted of from the coupler residue upon reaction of the coupler with the oxidized product of a color developing agent.

Abstract: A silver halide color photographic material capable of providing color images having good coloring properties and being excellent in color reproducibility even in a developer using hard water, which contains a cyan coupler represented by formula (I) or (II) and 5-pyrazolone magenta coupler having an arylthio group at the coupling position of said coupler, wherein said arylthio group includes an aliphatic oxy group or an aromatic oxy group at an ortho-position with respect to the sulfur atom of the arylthio group, the aliphatic group or aromatic group of said aliphatic oxy group or aromatic oxy group being unsubstituted or substituted by at least one member selected from(a) a halogen atom,(b) a cyano group,(c) an unsubstituted or substituted aliphatic, aromatic, or heterocyclic sulfonyl, sulfinyl, or phosphonyl group, and(d) a group represented by the formula ##STR1## (e) a group represented by the formula--A.sub.2 -M).sub.n B.sub.

Abstract: A silver halide photographic material is described comprising at least one layer which contains at least(1) a polymer comprising as constitutional components thereof a repeating unit having a photographically useful group and at least one repeating unit having a sulfinic acid group or a sulfinate group, and(2) a compound having at least one functional group capable of reacting with at least one of a sulfinic acid group and sulfinate group and at least one functional group capable of reacting with at least one of a sulfinic acid group, a sulfinate group and a primary amino group.Said photographic group-containing polymer (1) may be fixed in a photographic layer according to the present photographic material, and does not substantially migrate therefrom during development or other photographic treatment, thus resulting in formation of color images of high density.

Abstract: Yellow Couplers of the formula ##STR1## wherein Y represents an aliphatic or cycloaliphatic radical;X represents hydrogen or a separable group;R.sup.1 represents an alkyl radical having from 12 to 20 carbon atoms; andR.sup.2 represents an alkyl radical having from 1 to 4 carbon atoms,can be well dissolved in oil formers and also couple in the absence of benzyl alcohol with a high color yield. They are stable against heat and moisture and give rise to stable yellow dyes in color development.

Abstract: A silver halide photographic light-sensitive material having a support with at least one silver halide emulsion layer is provided. The silver halide emulsion layer containing in combination at least one yellow dye image-forming coupler of Formula I and at least one high-boiling organic solvent of Formula II to reduce the light discoloration of a yellow dye image.

Abstract: A heat-developable light-sensitive material comprising a support having thereon at least one light-sensitive silver halide emulsion and an acid precursor having a structural moiety represented by the following formula (I) bonded to carbon atoms: ##STR1## The acid precursor is extremely stable at room temperature but when it is heated above a certain temperature, and the development proceeds to the desired appropriate condition, it releases an acid to neutralize a base, whereby the development is stopped. A heat-developable light-sensitive material containing the acid precursor provides color images having a high S/N ratio and a high image density.

Abstract: A silver halide color photographic light-sensitive material comprising a reflective support bearing thereon a green light-sensitive silver halide emulsion layer containing a t-alkyl 1H-pyrazolo[3,2-C]-5-triazole magenta forming coupler represented by Formula (I) defined in the specification: a blue light-sensitive silver halide emulsion layer containing a t-butyl acylacetamide yellow-forming coupler represented by Formula (II) defined in the specification and a red light-sensitive silver halide emulsion layer containing a phenolic cyan-forming coupler represented by Formula (III) or (IV) defined in the specification.

Abstract: A heat-developable color light-sensitive material comprising a support having thereon at least: (1) a light-sensitive silver-halide, (2) a coupler capable of coupling with an oxidation product of a developing agent, (3) a hydrophilic binder, and (4) at least one compound represented by the following general formula (Z): ##STR1## the substituents A, R.sub.1, R.sub.2 R.sub.3, R.sub.4, X and R.sub.5 are defined herein.The heat-developable color light-sensitive material containing the developing agent or the precursor thereof represented by the general formula (Z) which is excellent in stability during storage, silver developing property and coupling property has good preservability and can provide color images having a high S/N ratio and a high image density.