Abstract: A color light-sensitive material is provided, having at least one image forming compound of the following formula (I) on a support(Dye--X).sub.q --Y (I)wherein Dye represents a magenta dye residue or a dye precursor residue represented by the following formula (II); X represents a bond or a binding group; Y represents a group capable of yielding a difference in diffusibility of a dye component before and after the reaction with a photographic silver salt imagewise having a latent image, corresponding to or reversely corresponding to said photographic silver salt; q is 1 or 2, and when q is 2, Dye-X may be the same or different; ##STR1## wherein the symbols are defined in the specification and claims.

Abstract: A heat developable light-sensitive material comprising a support having thereon at least one light-sensitive layer wherein at least one layer comprises a compound represented by the following general formula (I): ##STR1## wherein R.sub.1 and R.sub.2, which may be the same or different, each represents a hydrogen atom, an alkyl group, a cycloalkyl group, an alkenyl group, an alkynyl group, an aralkyl group, an aryl group, a heterocyclic group each of which may be substituted or unsubstituted; a carboxy group or a salt thereof; R.sub.3 and R.sub.

Abstract: A heat-developable light-sensitive material is described, comprising a support having thereon at least (1) a light-sensitive silver halide, (2) a silver salt oxidizing agent, (3) silver salt particles having adsorbed thereon at least one compound selected from a cyclic imino compound represented by formula (I) described below and a mercapto compound represented by formula (II) described below, (4) a reducing agent, and (5) a binder.Formula (I) is represented by ##STR1## wherein Z represents a non-metallic atomic group forming a heterocyclic ring containing an imino group together with the nitrogen atom of formula (I).Formula (II) is represented byR--S--M (II)wherein M represents a hydrogen atom or an alkali metal atom; and R represents a substituted or unsubstituted aliphatic hydrocarbon group, a substituted or unsubstituted aromatic hydrocarbon group, or a substituted or unsubstituted heterocyclic group.

Abstract: A photographic light-sensitive material comprising a support having thereon at least one light-sensitive silver halide emulsion layer having associated therewith a compound represented by formula (I) ##STR1## wherein Q represents a cyano group, a trifluoromethyl group, or a carbamoyl group represented by the formula --CONR.sup.1 R.sup.2 (wherein R.sup.1 represents a hydrogen atom, an alkyl group, or a substituted alkyl group, and R.sup.2 represents a hydrogen atom, an alkyl group, a substituted alkyl group, an aralkyl group, or an aryl group, or R.sup.1 and R.sup.2 may combine directly or through an oxygen atom to form a ring); M represents an alkyl group, a substituted alkyl group, an alkoxy group, a substituted alkoxy group, or a halogen atom; E.sup.

Abstract: A color light-sensitive material is provided, having at least one image forming compound of the following formula (I) on support.(Dye-X).sub.q -Y (I)wherein Dye represents a yellow dye residue represented by the following formula (II) or a dye precursor residue; X represents a bond or a binding group; Y represents a group capable of yielding a difference of diffusibility of a dye component before and after the reaction with a photographic silver salt imagewise having a latent image, corresponding to or reversely corresponding to said photographic silver salt; q is 1 or 2, and when q is 2, Dye-X may be the same or different; ##STR1## wherein R.sup.1, R.sup.2 and R.sup.

Abstract: A heat developable light-sensitive material containing a novel base precursor (I), which is stable during storage and rapidly decomposes to release a basic component upon heating higher than a certain temperature, has excellent storability and provides an image having a good image quality, i.e., a low fog density and a high image density within a short period of developing time.

Abstract: A heat-developable photographic material having improved preservability, which comprises a support having thereon at least one heat-developable photographic layer, said photographic material containing a dye represented by formula (I) ##STR1## wherein n and m each represents 0, 1, 2 or 3;p and q each represents 0 or 1;L represents a methine group or a substituted methine group;R.sub.1 and R.sub.2 are same or different and each represents an unsubstituted or substituted alkyl group;R.sub.3 and R.sub.4 are same or different and each represents a hydrogen atom, an alkyl group, an alkoxy group, a hydroxyl group, an unsubstituted or substituted amino group or a halogen atom; or said R.sub.3 and R.sub.4 form a condensed 6-membered ring;Z and Z' are same or different and each represents a non-metallic atomic group necessary for forming a substituted or unsubstituted 5-membered or 6-membered ring, or substituted or unsubstituted 5-membered or 6-membered ring which is condensed with another ring;X.sup..crclbar.

Abstract: A silver halide color photographic material comprising a support having provided thereon at least one silver halide emulsion layer, wherein the photographic material contains a compound having a dye portion in which the maximum absorption wavelength is shifted by a bond that is cleaved upon reaction with an oxidation product of a developing agent and is capable of forming a diffusion resistant compound having a dye portion possessing the maximum absorption wavelength which is not shifted as a result of the reaction with an oxidation product of a developing agent.By the use of the compound which permits a large degree of freedom with respect to selection of the dye for forming a color image according to the present invention, the color photographic material has an excellent image quality, and a good fastness of image or a high sensitivity.

Abstract: A color photographic recording material developable by heat treatment and comprising at least one binder layer, which contains photosensitive silver halide, optionally a substantially non-photosensitive silver salt and a color providing compound (dye releaser), can be improved in regard to the Dmin/max relation and in regard to sensitivity by addition of a compound corresponding to formula IR.sup.1 --S--CO--O--R.sup.2in which R.sup.1 and R.sup.2 independently of one another represent alkyl, alkenyl, cycloalkyl, aralkyl or aryl.

Abstract: A heat-developable color light-sensitive material is provided comprising on a support at least a light-sensitive silver halide emulsion, a binder, a compound capable of producing or releasing a mobile dye in direct or inverse proportion to the reaction of the light-sensitive silver halide being reduced into silver at elevated temperatures, and a dye having the general formula: ##STR1## wherein each of R.sup.1 and R.sup.2 is a substituted or unsubstituted alkyl or alkenyl group,R.sup.3 is a hydrogen atom, or substituted or unsubstituted alkyl, alkoxy, aryl or alkenyl group,each of X.sup.1, X.sup.2, X.sup.3, and X.sup.4 is a hydrogen atom, halogen atom, hydroxyl, carboxyl, or substituted or unsubstituted alkyl, alkoxy, alkoxycarbonyl, acyl, acyloxyl, aryl, amino, or acylamino group,X.sup.1 and X.sup.2, and X.sup.3 and X.sup.4 can be mutually combined to form a benzene ring,A.sup.- is an anion, andn is equal to 0 or 1.

Abstract: A heat developable light-sensitive material comprising a support having provided thereon at least a light-sensitive silver halide, a binder, and a compound capable of ring-closure to produce a benzimidazole ring upon heat development can be developed to an increased maximum density with less fogging at a relatively low temperature in a short period of time.

Abstract: A novel heat-developable color photosensitive material containing at least a light-sensitive silver halide, a binder, a dye providing substance capable of forming or releasing a diffusible dye by an oxidation-reduction reaction under heat and a transition metal ion, on a support.The present photosensitive materials provide a color image of high density with low fog in a short period of time, and have a good preservation-stability.

Abstract: A heat developable light-sensitive material containing a compound represented by the general formula (I):[Ar.sub.n (R).sub.3-n CCO.sub.2 H].sub.l .multidot.B.sub.m (I)wherein ar represents an aryl group or a heterocyclic group; R represents a substituent other than an aryl group and a heterocyclic group; Ar and R may be bonded in a part thereof to form a ring; B represents a mono- or diacidic base which has a pKa of 7 or more and contains 12 or less carbon atoms; n represents an integer from 1 to 3; l and m each represents an integer of 1 or 2 and maintain a relationship in that a number of positive charge and a number of negative charge are equal; when n represents 1 or 2, two R's or Ar's may be the same or different, when n represents 3, three Ar's may be the same or different; and the substituent represented by Ar or R may be further substituted with a substituent.

Abstract: A photographic recording material which contains at least one dye of the formula ##STR1## wherein D is the group of atoms necessary to complete a 5-membered ring that contains at least one nitrogen atom, A is hydrogen, alkyl, alkoxy, phenyl, alkylthio, cyano, nitro or halogen, n is 0 to 3, R.sub.1 is hydrogen, alkyl, hydroxyl, acylamino, R.sub.6 is hydrogen or unsubstituted or substituted amino, and R.sub.4 is hydrogen or alkoxy. The material is distinguished by good color reproduction, brilliant colors and excellent lightfastness.

Abstract: A heat developable light-sensitive material comprising a support having thereon at least a layer containing a novel compound having a group accelerating a reaction of decarboxylation, which releases a base by decarboxylation on heating. The heat developable light-sensitive material provides an image having a high density in a short time and has an improved storage stability.

Abstract: A heat-developable light-sensitive material is described, containing a compound represented by formula (I) ##STR1## wherein R.sub.1 represents a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkynyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted heterocyclic group, a substituted or unsubstituted alkylene group, a substituted or unsubstituted cycloalkylene group, a substituted or unsubstituted alkenylene group, a substituted or unsubstituted alkynylene group, a substituted or unsubstituted aralkylene group, a substituted or unsubstituted arylene group, or a substituted or unsubstituted divalent heterocyclic group; R.sub.2 represents a hydrogen atom, a substituted or unsubstituted alkyl group; R.sub.

Abstract: A heat-developable color light-sensitive material is described, comprising a support having thereon at least (1) a light-sensitive silver halide emulsion, (2) a dye providing substance which releases a dye having a different diffusibility from that of the dye providing substance in correspondence or countercorrespondence to the light-sensitive silver halide when the light-sensitive silver halide is reduced under the condition of high temperature and (3) an organic acid precursor containing a structural moiety bonded to carbon atoms that is represented by formula (I) ##STR1## The heat-developable color light-sensitive material can provide color images having a high S/N ratio and a high image density.

Abstract: There are described novel azo and azomethine dye developers which include a pyrazolone moiety having two silver halide developing groups. In one embodiment the dye developers are metal complexed. The dye developer compounds are useful in photographic products and processes.

Abstract: A heat developable light-sensitive material containing a compound represented by formula (I) or (II) ##STR1## wherein R.sub.1 and R.sub.2 each represents a hydrogen atom, an alkyl group, a cycloalkyl group, an alkenyl group, an alkynyl group, an aralkyl group, an aryl group, a heterocyclic group, a carboxyl group or a salt thereof, a halogen atom, a cyano group, an alkylsulfonyl or arylsulfonyl group, a sulfamoyl group, a carbamoyl group, an alkoxycarbonyl or aryloxycarbonyl group, a di- or mono-alkylphosphoryl or arylphosphoryl group, a di- or mono-alkylphosphinyl or arylphosphinyl group, an alkylsulfinyl or arylsulfinyl group, an acyl group, an amino group, an acylamino group, an acyloxy group or a group represented by X; X represents a decarboxylation accelerating group; or any two of R.sub.1, R.sub.2, and X may combine to form a ring; and the groups represented by R.sub.1, R.sub.

Abstract: A heat-developable light-sensitive material is disclosed, comprising a support and at least one layer containing a novel base precursor releasing a base by thermal decomposition. The heat-developable light-sensitive material of the invention has an improved long-term stability and can provide a high density image in a short time.

Abstract: A heat developable light-sensitive material is described, comprising a polymer containing as a constituent a repeating unit represented by formula (I) ##STR1## wherein R.sub.1 represents a hydrogen atom or a substituted or unsubstituted alkyl group having from 1 to 6 carbon atoms; L represents a divalent connecting group having from 1 to 20 carbon atoms; M represents a cation and x represents a number which is the same as the charge number of the cation represented by M.The polymer containing the repeating unit represented by formula (I) is a base precursor which is stable at normal temperature, but rapidly decomposes to release a base by heating; therefore, the heat developable light-sensitive material containing the base precursor has excellent preservability and provides images having good image quality, i.e., low fog density and high image density, upon a short period of developing time.

Abstract: A heat-developable light-sensitive material is described which is capable of providing images of high density and low fog in a short period of time, and which is excellent in stability. The heat-developable light-sensitive material comprises a support and formed thereon a heat developable light-sensitive layer, wherein said light-sensitive material contains at least one compound selected from the group consisting of compounds represented by formulae (I), (II), (III) and (IV) as a base precursor ##STR1## wherein symbols represent the same groups as defined in claim 1.

Abstract: A heat-developable color photographic light-sensitive material comprises a support having thereon at least one layer containing the novel base precursor. This heat-developable color photographic light-sensitive material provides a high maximum density and low fog by heat-developing at a relatively low temperature and for a short period of time.

Abstract: A heat developable light-sensitive material having an excellent stability with time and capable of providing a high quality image is disclosed, which contains a base precursor represented by the following general formula (I): ##STR1## wherein A represents an organic residue represented by the following formula (II): ##STR2## X represents an electron attractive substituent having a Hammett's sigma value of more than 0;l represents an integer of 1 to 5 and, when l represents 2 or more, a plurality of Xs may be the same or different;Y represents a substituent having a Hammett's sigma value of 0 or less;k represents an integer of 0 to 5 and, when k represents 2 or more, a plurality of Ys may be the same or different;Z represents a divalent organic residue selected from the group consisting of --C.dbd.

Abstract: A heat-developable photographic material having improved preservability, which comprises a support having thereon at least one heat-developable photgraphic layer, said photographic material containing a dye represented by formula (I) ##STR1## wherein R.sub.1 and R.sub.3 each represents an unsubstituted or substituted alkyl group or alkenyl group;R.sub.2 represents a hydrogen atom or an unsubstituted or substituted alkyl group, aryl group, alkenyl group, or aromatic heterocyclic group;R.sub.4 through R.sub.7 each represents a hydrogen atom or an unsubstituted or substituted alkyl group, aryl group, or alkenyl group; or R.sub.4 and R.sub.6 together form an unsubstituted or substituted alkylene group or alkenylene group;X.sub.1 represents an oxygen atom, a sulfur atom, or the group ##STR2## wherein R.sub.8 represents a hydrogen atom, an unsubstituted or substituted alkyl group, aryl group, or alkenyl group;Y.sub.

Abstract: Photographic elements and assemblages are described which employ nondiffusible 4-arylazo-1-hydroxy-2-carboxy ester substituted naphthoic image dye-providing compounds capable of releasing diffusible dye moieties which undergo substantial hue shifts at low, or acidic, pH values but which provide desired hues at neutral or basic pH values used for viewing or processing.

Abstract: A heat developable light-sensitive material is described, comprising a support having thereon a light-sensitive silver halide emulsion, a base or a base precursor, and a compound containing a group bonded to a carbon atom is represented by formula (I) ##STR1## wherein R.sup.2 represents an aryl group, a substituted aryl group, a heterocyclic group or a group represented by formula (A), (B), or (C) ##STR2## wherein R.sup.11 through R.sup.16 each represents an alkyl group, a substituted alkyl group, an aryl group, or a substituted aryl group.

Abstract: Photographic elements and assemblages are described which employ nondiffusible N',N'-diaromatic carbocyclic--or diaromatic heterocyclic--sulfonohydrazide compounds which are capable of releasing photographically useful groups in an imagewise manner as a function of silver halide development.

Abstract: A silver halide photographic light-sensitive material is described, comprising a support having thereon a light-sensitive silver halide emulsion layer having associated therewith a blocked photographic agent represented by formula (I) ##STR1## wherein A represents a photographically useful agent moiety, which may have a timing group; X.sup.1 and X.sup.2 each represents a carbonyl group, a sulfonyl group, or a sulfinyl group; Z represents an atomic group forming a 5-membered, 6-membered, or 7-membered ring; R.sup.1 and R.sup.2, which may be the same or different, each represents a hydrogen atom, a halogen atom, an alkyl group, an alkenyl group, a cycloalkyl group, an aryl group, an alkoxy group, an acyl group, a sulfonyl group, or a heterocyclic group; R.sup.3 represents an alkyl group, an alkenyl group, a cycloalkyl group, a heterocyclic group, an aryl group, or an aralkyl group; m represents 0, 1, or 2; n represents 0 or 1; and the total of m+n is 1, 2, or 3.

Abstract: A heat developable light-sensitive material is described, comprising a dye represented by formula (I) or (II) as described in claim 1.

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: Photographic elements and assemblages are described which employ nondiffusible compounds which release photographically useful groups in an imagewise manner as the result of a .beta.-elimination reaction.

Abstract: Photographic silver halide emulsion material for use in a dye diffusion transfer process incorporating a non-diffusing compound capable of releasing a diffusible mono-azo dye or dye precursor thereof from a carrier moiety, said compound corresponding to the following general formula (I):(I) CAR--L--G--Dwherein:CAR represents a ballasted carrier moiety,L represents a chemical group cleavable or releasable from the carrier moiety as a function of a redox-reaction or argentolytic reaction taking place in the development of a silver halide emulsion layer under alkaline conditions,G represents a bivalent organic group incorporating at least three aromatic nuclei, selected from the group consisting of homocyclic or heterocyclic aromatic nuclei, with the provisions that L is linked to one end nucleus and that D is linked to the other end nucleus of said bivalent organic group; said linking being by means of a direct bond or by means of a bivalent mono- or polyatomic group, andD is an azo dye part linked to said othe

Abstract: A heat-developable light-sensitive material comprising, on a support, a thermally decomposable organic silver salt. The heat-developable light-sensitive materials have high density and low fog.

Abstract: Metal complexes, particularly copper and nickel complexes of azo dyes corresponding to general formula (I) are suitable as color dyes for the production of color images by the dye diffusion transfer process. The dyes are (in non-metallized form), in the form of so-called "dye-releasers", bound to a redox-active carrier radical provided with a ballast group, which dye-releasers are associated to a light-sensitive silver halide emulsion layer. During development, the metallizable dyes are image-wise released and are converted, after diffusion into a light-receiving layer, into the corresponding metal complexes ##STR1## wherein E represents an electron acceptor radical; andK represents the radical of an azo coupler component, derived from an open-chain or closed ring ketomethylene compound, a cyclic enamine compound or a phenolic compound.

Abstract: A method for forming an image is disclosed, which comprises heating a light-sensitive material having on a support, a light-sensitive silver halide, a binder and a dye releasing redox compound capable of releasing a dye through the reaction with the silver halide by heating, after or simultaneously with imagewise exposure, in the presence of a compound represented by the formula (A): ##STR1## wherein R is an aliphatic group with a valence of m+n, R.sup.1 is an aliphatic or aromatic group, and m and n are each an integer of 1 to 5. The presence of the compound markedly improves the stability of the light-sensitive material during its storage prior to the heat development.

Abstract: Dyes corresponding to general formula (I) are released imagewise from corresponding dye-releasers in the dye diffusion transfer process. They react with nickel ions to form lightfast, cyan dye-metal complexes having advantageous spectral properties: ##STR1## wherein Q represents the group required for completing an optionally substituted phenyl or naphthyl group;X represents --S--, --SO.sub.2 --, --SO.sub.2 --NR.degree.-- or --SO.sub.2 --O--;R.degree. represents H or alkyl; andR.sup.1 represents an aliphatic, araliphatic or a carbocyclic or heterocyclic aromatic group or, when X represents --SO.sub.2 --NR.degree.--, R.sup.1 represents hydrogen.

Abstract: Dyes corresponding to formula I may be released imagewise from dye releasers in the dye diffusion transfer process. The dyes obtained are lightfast cyan dyes with improved spectral properties and reduced sensitivity to reducing agents ##STR1## the meanings of symbols given in formula I (A, A', G, R.sup.1, R.sup.2, R.sup.3 and R.sup.4) are indicated in the description.

Abstract: Photographic elements and diffusion transfer assemblages are described which employ a nondiffusible, positive-working, redox dye-releaser having the formula: ##STR1## wherein: (a) R.sup.1 represents a substituted or unsubstituted alkyl group of from 1 to about 30 carbon atoms or a substituted or unsubstituted aryl group of from 6 to about 12 carbon atoms,(b) R.sup.2 and R.sup.3 each independently represents hydrogen or R.sup.1 ;(c) E represents carbonyl or thiocarbonyl;(d) Q represents a nonmetallic atom of Group VA or VIA of the periodic table in its minus 2 or minus 3 valence state; and(e) Dye represents a diffusible dye moiety or precursor thereof;with the proviso that at least one of R.sup.1, R.sup.2 and R.sup.3 is an organic ballasting radical of such molecular size and configuration as to render the compound nondiffusible in a photographic element during development in an alkaline processing composition.

Abstract: Photographic elements, diffusion transfer assemblages and coordination complexes are described which employ a novel nondiffusible compound capable of releasing at least one diffusible dye moiety having the formula: ##STR1## wherein: (a) D.sup.1, D.sup.2 and D.sup.3 each independently represents the atoms necessary to complete an aromatic heterocyclic nucleus having at least one ring of 5 to 7 atoms;(b) Z.sup.1 and Z.sup.2 each independently represents the atoms necessary to complete an aromatic carbocyclic or heterocyclic nucleus having at least one ring of 5 to 7 atoms or a ketomethine group;(c) G.sup.1 and G.sup.2 each independently represents a metal chelating group;(d) Me is a polyvalent, hexacoordinate metal ion,(e) CAR represents a ballasted carrier moiety capable of releasing the diffusible dye moiety as a function of development of the silver halide emulsion layer under alkaline conditions; and(f) n is 1, 2 or 3.

Abstract: A color photographic light-sensitive material is described, containing at least one light-sensitive silver halide emulsion layer and associated with at least one of said emulsion layer at least one dye-providing compound represented by the following general formula (I): ##STR1## wherein Q.sub.1, G, R.sub.1, R.sub.2, Q.sub.2, J.sub.1, J.sub.2, D, Z, X, Car, m and q are defined as herein.The color photographic light-sensitive material provides a transfer color image with a good hue and a good sharpness.

Abstract: New dyes corresponding to the following general formula: ##STR1## wherein the substituents are as defined in the specification, are suitable for use in photographic recording materials.

Abstract: A color light-sensitive material is described, comprising a support and at least one light-sensitive silver salt layer on the support, wherein the layer contains a dye-providing compound represented by the general formula (I):(Dye-X).sub.g -Y (I)wherein all the symbols are as defined in the appended claims. This dye-providing compound provides a color image which is sharp and further is superior in light fastness.

Abstract: A heat-developable color photographic material comprising a support having thereon at least a light-sensitive silver halide, a hydrophilic binder, a dye releasing redox compound and a heat fusible compound which has a melting point of 60.degree. C. or higher and is represented by the following general formula (I), (II) or (III): ##STR1## wherein m represents an integer from 1 to 3; n represents an integer from 1 to 8; q represents an integer from 1 to 4; p represents an integer which meets the requirement for p+g=6; s represents an integer from 1 to 4; r represents an integer which meets the requirement for r+s=8; R represents a hydrogen atom or a substituent as set forth in the specification, and when m, p or r represents 2 or more, R may be the same or different; R.sub.1 represents an organic group in R.sub.1 - (OH).sub.n which is an alcohol, a phenol or a naphthol each having one or more hydroxy group and includes a saccharide; and R.sub.2 represents an organic group in R.sub.

Abstract: Direct positive silver halide photographic light-sensitive materials are described in which at least one layer of light-sensitive silver halide photographic emulsion layers and other hydrophilic colloid layers applied on a base contains a mercapto compound represented by the following general formula (I) or (II) as a nucleating agent: ##STR1## wherein Z, L.sub.1, L.sub.2, L.sub.3, R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and m are as defined in the specification. The nucleating agents can also be added to processing solutions.

Abstract: Photographic elements, diffusion transfer assemblages, coordination complexes and processes are described which employ a novel nondiffusible hydrazone compound capable of releasing at least one diffusible yellow dye or dye precursor thereof having the formula: ##STR1## wherein: (a) Z.sup.1 and Z.sup.2 each independently represents the atoms necessary to complete a 5- or 6-membered aromatic heterocyclic ring;(b) CAR represents a ballasted carrier moiety capable of releasing the diffusible yellow dye moiety or precursor thereof as a function of development;(c) R represents hydrogen, an alkyl or substituted alkyl group of from 1 to about 12 carbon atoms, an aryl or substituted aryl group of from about 6 to about 12 carbon atoms, a substituted or unsubstituted 5- or 6-membered aromatic heterocyclic ring, or CAR, and(d) n is 0, 1 or 2, with the proviso that when n is 0, then R is CAR.

Abstract: A silver halide photographic light-sensitive material is described, containing a compound represented by formula (I) ##STR1## said compound represented by formula (I) being a novel cyan dye-releasing redox compound having various advantages such as providing a high transfer density, a high transfer speed in dye image portions, and high light-fastness.

Abstract: A color photographic material is disclosed. The material is comprised of a support base having thereon a photosensitive silver halide emulsion layer and a compound associated with the emulsion layer, the compound being represented by general formula (I) ##STR1## wherein the substituents are defined in the specification. The dye image-forming compounds forming metal chelates have good absorption when the dye forms a color image. Further, these compounds have a large molecular absorption coefficient and are substantially stable with respect to light after forming a color image.

Abstract: A heat-developable color photographic material comprising a support having thereon at least a light-sensitive silver halide, a hydrophilic binder and a dye releasing redox compound represented by the following general formula (I): ##STR1## wherein G represents --OR.sup.1 or --NHR.sup.2 ; R.sup.1 represents a hydrogen atom or a hydrolyzable group; R.sup.

Abstract: A thermodevelopable photographic material is described, comprising a support, at least one photographic silver halide emulsion layer coated thereon, and a dye donating substance capable of forming or releasing a mobile dye in response to, or in inverse response to, the reduction of silver halide in said emulsion to silver by heating, wherein the color of an image formed by the fixing of each of said mobile dyes released by exposure and heating to a dye fixing layer is within the range of a*=10 to -18 and b*=10 to -18 determined from tristimulus values in the 10 degree visual field XYZ system under standard light C.