Abstract: A method of producing organic nanoparticles, comprising: mixing a solution of an organic material dissolved in a good solvent with a solvent that is compatible with the good solvent but is a poor solvent for the organic material, to prepare a dispersion in which the organic material is being formed to organic fine particles of a size in the order of nanometer; wherein the dispersion contains a polymer compound having a weight-average molecular weight of 1,000 or more represented by the following formula (1): wherein R1 represents a (m+n)-valent connecting group; R2 represents a single bond or a divalent connecting group; A1 represents a specific monovalent organic group; when n is two or more, plural A1s may be the same or different; m represents 1 to 8; n represents 2 to 9; m+n is 3 to 10; and P1 represents a polymer compound residue.

Abstract: A method of producing phthalocyanine-series pigment fine particles, the method comprising: dissolving a phthalocyanine-series pigment in a good solvent added with a pigment-dispersing agent comprising a compound represented by the following formula (I), to prepare a pigment solution; and mixing the pigment solution with a solvent which is compatible with the good solvent but is a poor solvent for the phthalocyanine-series pigment, to form fine particles of the phthalocyanine-series pigment having a size in the order of nanometer: wherein Q represents a residue of an organic dye selected from anthraquinone-series dyes and the like, X represents —CO— or the like, Y1 represents —NH— or —O—, Z represents a hydroxyl group or the like, R1 and R2 each independently represent an alkyl group or the like, m represents an integer of 1 to 6, and n represents an integer of 1 to 4.

Abstract: A method of producing organic nanoparticles, comprising: mixing a solution of an organic material dissolved in a good solvent with a solvent that is compatible with the good solvent but is a poor solvent for the organic material, to prepare a dispersion in which the organic material is being formed to organic fine particles of a size in the order of nanometer; wherein the dispersion contains a polymer compound having a weight-average molecular weight of 1,000 or more represented by the following formula (1): wherein R1 represents a (m+n)-valent connecting group; R2 represents a single bond or a divalent connecting group; A1 represents a specific monovalent organic group; when n is two or more, plural A1s may be the same or different; m represents 1 to 8; n represents 2 to 9; m+n is 3 to 10; and P1 represents a polymer compound residue.

Abstract: A heat-developable color light-sensitive material containing light-sensitive silver halide grains, a binder, at least one compound of formula (I), and at least one dye-providing compound of formula (II), on a support, wherein at least one of layers containing the light-sensitive silver halide grains contains the binder, the compound of formula (I), and the dye-providing compound of formula (II) and, wherein the heat-developable color light-sensitive material contains no compound that participates in a coupling reaction with an oxidized product of the compound of formula (I): Formula (I) wherein Z represents a carbamoyl, acyl, alkoxycarbonyl, aryloxycarbonyl, sulfonyl, or sulfamoyl group; and Q1 represents a group of atoms necessary to form an unsaturated ring; Formula (II) wherein DYE represents a dye or dye precursor group; Y represents a specific group; X represents a simple bond or a connecting group; p denotes 1 or more, and q denotes 1 or 2.

Abstract: Disclosed are an improved silver halide color photographic photosensitive material comprising a support having thereon a photosensitive layer containing at least one kind of photosensitive silver halide grain, a color developing agent, a coupler and a binder, and a non-photosensitive layer, wherein a one dye is contained as a dispersion of solid fine particles at least one of the layers the dye being represented by general formula (I) as follows: D−(X)y  General formula (I) wherein D represents a compound having a chromophore; X represents a dissociative proton or a group having a dissociative proton which is linked to D directly or via a divalent linking group; and y represents an integer of 1 to 7.

Abstract: A silver halide photographic light-sensitive material comprising a support having provided thereon a layer containing at least one cyan dye image forming compound represented by the following formula (1):(Dye-X).sub.1 --Y (1)wherein Dye, X, Y and q are as defined in the specification. The silver halide photographic light-sensitive material containing the cyan dye image forming compound according to the present invention provides a cyan color image excellent in fastness to light, humidity and heat.

Abstract: A heat developable color light-sensitive material provided on a support, which is for use in an image forming process comprising using a dye fixing element provided on a support separate from the support for the light-sensitive material, superposing one on another, heat developing to form a diffusible dye in the light sensitive material, and transferring the diffusible dye to the dye fixing element to form an image, is disclosed.

Abstract: A thermal transfer image-receiving material having an image-receiving layer comprising a thermoplastic resin capable of receiving a dye, on a support, wherein the thermoplastic resin is a polyester having anti-fading groups in at least one of a main chain and a side chain moiety of the molecular structure of the thermoplastic resin and the material has the ability to form an image with a high image density and excellent image storage stability by thermal transfer recording.

Abstract: A thermal transfer recording material composed of a dye-providing element having a dye-providing layer containing a thermal transferring dye and a binder resin as provided on a support and an image-receiving element having a dye-receiving layer containing a dye-receiving high polymer compound, in the main, as provided on a support, the dye-providing layer and the dye-receiving layer being kept in contact with each other and heatable in accordance with image signals so as to transfer the dye from the dye-providing layer to the dye-receiving layer to attain recording, in which the surface(s) of the dye-providing layer and/or the dye-receiving layer contain(s) at least one modified polysiloxane compound of formula (1).

Abstract: A thermal transfer receiving sheet adapted to receiving a dye from a thermal transfer sheet containing a dye capable of being sublimed or rendered mobile by heat, wherein said thermal receiving sheet comprises at least one receiving layer for receiving dye provided on a base sheet, and said base sheet comprises a support having at least one hydrophilic binder provided on the support between the support and the receiving layer.

Abstract: A thermal transfer image receiving material is disclosed comprising a support having thereon at least one dye image receiving layer containing a polyester resin containing anionic groups and containing phenylene groups in the linear chain of the resin.