Abstract: A color photographic light-sensitive material is described, comprising at least one of a dye-providing 2-acylaminophenol derivative represented by the formula A-L-D, wherein A is a reducing group, L is a bonding group, and D is an image forming dye or dye precursor group.

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: 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.

Abstract: A heat-developable light-sensitive material comprising a support having there on a light-sensitive silver halide, a binder and a dye releasing compound which is capable of reducing the light-sensitive silver halide and reacting with the light-sensitive silver halide by heating to release a dye, said dye releasing compound is changed so as to have shorter absorption wavelength. The heat-developable light-sensitive material has high sensitivity and can be developed without supplying water from the outside.

Abstract: A base precursor for heat-developable photosensitive material is disclosed. The precursor is comprised of a compound represented by general formula (I) or (II):(R--C.tbd.C--CO.sub.2 H).sub.x.B (I)R--C.tbd.C--CO.sub.2 H).sub.2.B.sub.y (II)The substituents within the general formulae are defined within the specification. The use of this novel base precursor makes it possible to obtain a material which is very stable at normal temperatures and which smoothly decomposes under heating at 80.degree. C. or higher in order to release a basic constituent.

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: A heat-developable light-sensitive material is described, which contains fine particles of a substantially water-insoluble base precursor incorporated in a binder. This light-sensitive material is superior in stability with the passage of time and the changes on the photographic characteristics such as maximum density, minimum density and sensitivity are less during the storage thereof.

Abstract: A heat-developable color photographic material is disclosed. The material is comprised of a support having thereon a layer containing at least a photographic silver halide and the photographic material containing an organic silver salt oxidizing agent, a reducing agent, a[hydrophobic]binder and a dye releasing compound which releases a diffusible dye upon heat development. The material is characterized by a support capable of receiving a released dye or a support having thereon a layer composed of an organic high molecular weight compound which is capable of receiving a released dye. The heat-developable color photographic material can easily provide a clear and stable color image by imagewise exposure to light and a heat development procedure. A process for forming a color image using the heat-developable color photographic material is also disclosed.

Abstract: A heat-developable color photographic material is disclosed. The material is comprised of a support having thereon a layer containing at least a light-sensitive silver halide, a hydrophilic binder, a dye releasing activator and a dye releasing compound which reduces the silver halide and releases a hydrophilic dye. The heat-developable color photographic material can easily provide a clear and stable color image by imagewise exposure to light and a heat-development procedure. A method of forming a color image using the heat-developable color photographic material is also disclosed.

Abstract: A heat-developable color light-sensitive material comprising a support having thereon at least a light-sensitive silver halide, a binder, a dye releasing redox compound which is capable of reducing the light-sensitive silver halide and is capable of reacting with the light-sensitive silver halide by heating to release a hydrophilic dye and a salt of an alkylcarboxylic acid having a triple bond between the .alpha.-position carbon atom and the .beta.-position carbon atom with an organic base as a base precursor.The heat-developable color light-sensitive material containing the novel base precursor has good stability during preservation and provides a color image having a high color density and low fog in a short time by a simple procedure. A method of forming a color image using the heat-developable color light-sensitive material is also disclosed.

Abstract: A heat-developable color photographic material is disclosed. The material is comprised of a support having thereon a layer containing at least a light-sensitive silver halide, an organic silver salt oxidizing agent, a hydrophilic binder, a reducing agent for the silver halide and/or the organic silver salt oxidizing agent and a dye releasing compound which is capable of bonding to an oxidized product of the reducing agent and releasing a hydrophilic dye. The heat-developable color photographic material can easily provide a clear and stable color image by imagewise exposure to light and a heat development procedure. A method of forming a color image using the heat-developable color photographic material is also disclosed.

Abstract: A heat-developable color photographic material is disclosed. The material is comprised of a support having thereon a layer containing at least a light-sensitive silver halide and the photographic material containing an organic silver salt, a binder, a dye releasing activator and a dye releasing redox compound which releases a diffusible dye. The improvement comprises a support capable of receiving a released dye or a support having thereon a layer composed of an organic high molecular weight compound capable of receiving a released dye. The heat-developable color photographic material can easily provide a clear and stable color image by imagewise exposure to light and heat development procedure. A method of forming a color image using the heat-developable color photographic material is also disclosed.

Abstract: A diffusion transfer heat-developable color photographic material comprising a support having thereon a layer containing at least a light-sensitive silver halide, and the photographic material containing an organic silver salt oxidizing agent, a reducing agent, a hydrophobic binder and a dye releasing coupler which releases a diffusible dye upon heat development. The diffusion transfer heat-developable color photographic material can provide a stable color image by imagewise exposure to light and heat development procedure. A method of forming a color image using the diffusion transfer heat-developable color photographic material is also disclosed.

Abstract: A heat-developable color photographic material is disclosed. The material is comprised of a support having thereon at least a light-sensitive silver halide, a hydrophilic binder, a dye releasing compound reductive and capable of releasing a hydrophilic dye and a compound represented by the following general formula (A): ##STR1## wherein A.sub.1, A.sub.2, A.sub.3, and A.sub.4, which may be the same or different, each represents a hydrogen atom or a substituent selected from an alkyl group, a substituted alkyl group, a cycloalkyl group, an aralkyl group, an aryl group, a substituted aryl group and a heterocyclic group, or A.sub.1 and A.sub.2 or A.sub.3 and A.sub.4 may combine with each other to form a ring.The heat-developable color photographic material can easily provide in a short time a clear and stable color image having a high color density and low fog by imagewise exposure and heat development procedure.

Abstract: A heat-developable color photographic material is disclosed. The material is comprised of a support having thereon a light-sensitive silver halide, a hydrophilic binder and a dye releasing redox compound represented by the general formula (I): ##STR1## the substituents within the general formula (I) are disclosed within the specification. The heat-developable color photographic material can easily provide a clear and stable color image by imagewise exposure to light and a heat-development procedure. A method of forming a color image using the heat-developable color photographic material is also disclosed.

Abstract: A diffusion transfer heat-developable color photographic material. The material comprises a support, a photosensitive silver halide, an organic silver salt, a hydrophobic binder, a dye releasing activator, and a dye releasing redox compound which releases a diffusible dye. Color images are obtained with the material by transferring a dye released by heat development. The material makes it possible to obtain clear color images by a simple procedure and the images obtained are stable over a long period of time.

Abstract: A color photographic light-sensitive material is disclosed. The material is comprised of a support having thereon a layer containing at least one kind of dye releasing 2-acylamino-1-naphthol derivative represented by the following general formula (I):R--L--D (I)wherein R represents a reducing group represented by the following general formula (II): ##STR1## wherein the substituents R.sub.1 -R.sub.8 are defined within the application; L represents a connecting group between R and D wherein specific examples of L are defined in the specification; and D represents a dye or a precursor of a dye. The dye releasing 2-acylamino-1-naphthol derivative of the present invention has a high dye releasing efficiency when it is oxidized. The derivative of the invention can release a dye having a good diffusibility and can provide a high dye transfer density and thus it is suitable to use as a coloring material in a color photographic light-sensitive material of diffusion transfer type.

Abstract: Recording members having excellent light resistance are obtained by using as a dye precursor specific diarylaminofluoran compounds.

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.