Abstract: To provide an ink composition that when printed using a nozzle, does not cause clogging at the chip of the nozzle, is free from paper dependency, and when printed on an arbitrarily chosen paper, exhibits superior properties in water resistance, scratch resistance, lightfastness and ozone resistance and an inkjet recording method using it. The ink composition contains colored fine particles containing an oil-soluble polymer and an oil-soluble dye having an oxidation potential higher than 1.0 V (vs SCE), in an aqueous medium.

Abstract: A radiographic intensifying screen is composed of a support and a phosphor layer. The phosphor layer contains a terbium activated gadolinium oxysulfide phosphor. The screen contains a fluorescent dye or pigment which absorbs a portion of luminescence emitted by the oxysulfide phosphor and then emits a light having an emission peak in the wavelength resion of 490 to 600 nm.

Abstract: An azo dye represented by the following general formulae (10) and (12): (wherein the variables are as defined herein) and a process for making the azo dye is disclosed. The process comprises a step in which a diazonium salt is formed by the reaction between an aminopyrazole represented by the general formula (3) and an diazotizing agent, a step in which a compound represented by the general formula (5) is formed by the reaction between the diazonium salt and an aromatic coupling agent represented by the general formula (4), and a step in which an azo dye represented by the general formula (6) is formed by the reaction between the compound represented by the general formula (5) and an arylating agent or a heterylating agent in the presence of a base.

Abstract: A dye which is represented by any of the following general formula (1), (2), (3) or (4), an ink for inkjet recording which contains at least one of the dyes, and an ink jet recording method which uses the ink. The dye has heterocyclic group which may be substituted and has at least one ionic aqueous group in a molecule.

Abstract: An ink composition for inkjet recording comprising: an azo dye having an aromatic nitrogen-containing 6-membered heterocycle as a coupling component; a compound represented by the following formula (I); and an aqueous medium wherein the azo dye is dissolved or dispersed in the aqueous medium: 1

Abstract: An ink composition comprising at least one of water-soluble dyes represented by the following formulae (1) to (3) and a surfactant: 1

Abstract: An ink containing a dye and a basic polymer in an aqueous medium, in which the basic polymer has a side-chain containing a tertiary amino group, a quaternary ammonium group or a nitrogen atom-containing heterocyclic group is favorably employed in a method of forming an ink image on a receiving sheet using an ink jet printer.

Abstract: An azo dye represented by the following general formulae (10) and (12): 1

Abstract: An azo dye represented by the following general formula (1) and a process for making the azo dye is disclosed. The process comprises a step in which a diazonium salt is formed by the reaction between an aminopyrazole represented by the general formula (3) and an diazotizing agent, a step in which a compound represented by the general formula (5) is formed by the reaction between the diazonium salt and an aromatic coupling agent represented by the general formula (4), and a step in which an azo dye represented by the general formula (6) is formed by the reaction between the compound represented by the general formula (5) and an arylating agent or a heterylating agent in the presence of a base.

Abstract: Image recording materials, especially photothermographic light-sensitive image recording materials, that comprise a compound of formula (1) to acquire excellent image storage stability: wherein X1 and X2 each represent a halogen atom; X3 represents a hydrogen atom, a halogen atom or a univalent substituent group; L represents a divalent organic group; Y represents a divalent organic group containing a hetero atom, or a single bond; and Z represents an acidic functional group or a salt thereof.

Abstract: The present invention provides a novel heterylaniline azo dye as well as an ink-jet recording ink and an ink-jet recording method enabling the formation of an image having a good hue and high durability to light and ozone gas. The ink-jet recording ink contains a heterylaniline azo dye derivative having a novel structure. The ink-jet recording method is characterized in that an image is formed by using the ink described above on an image-receiving material comprising a support having thereon an ink-receiving layer containing white inorganic pigment particles.

Abstract: The present invention provides a novel heterylaniline azo dye as well as an ink-jet recording ink and an ink-jet recording method enabling the formation of an image having a good hue and high durability to light and ozone gas. The ink-jet recording ink contains a heterylaniline azo dye derivative having a novel structure. The ink-jet recording method is characterized in that an image is formed by using the ink described above on an image-receiving material comprising a support having thereon an ink-receiving layer containing white inorganic pigment particles.

Abstract: Image recording materials, especially photothermographic light-sensitive image recording materials, that comprise a compound of formula (1) to acquire excellent image storage stability: 1

Abstract: A radiation image forming system utilizing a combination of a silver halide photographic material and radiographic intensifying screens is improved in its radiographic speed and sharpness of the resulting radiation image by employing a rare earth phosphor of the formula MwOwX:M′ (M is Y, La, Gd or Lu; X is a chalcogen atom or a halogen atom; M′ is a rare earth atom which activates M; and w is 2 when X is a chalcogen atom or w is 1 when X is a halogen atom), incorporating into the intensifying screen a fluorescent dye or pigment which absorbs a portion of luminescence emitted by the phosphor and then emits light in a visible region, and employing a photographic material showing a cross-over of 10% or less when it is exposed to radiation in combination with the intensifying screens.

Abstract: A dye which is represented by any of the following general formula (1), (2), (3) or (4), an ink for inkjet recording which contains at least one of the dyes, and an ink jet recording method which uses the ink. The dye has heterocyclic group which may be substituted and has at least one ionic aqueous group in a molecule.

Abstract: A jet printing ink contains an azo dye of the formula (I): wherein X1 is ═N— or ═CR4—; Y1 is —N═ or —CR5═; Z1 is —S—, —NR6— or —N═CR7— in which the right end of each group connects to Y1; the benzene ring A can have a substituent; each of R1, R2 and R6 is hydrogen, an alkyl group, a cycloalkyl group, an aralkyl group, or an aryl group (each group possibly has one or more substituens); each of R3, R4, R5 and R7 is hydrogen, a halogen atom, cyano, hydroxyl, nitro, carboxyl, sulfo, an alkyl group, a cycloalkyl group, an aralkyl group, an aryl group, an alkoxy group, an alkylthio group, an acyl group, an acyloxy group, an alkoxycarbonyl group, an alkylamino group, an arylamino group, or an alkylsufonyl group; or a set of R1 and R2, R1 and the substituent of the benzene ring A, R2 and the substituent of the benzene ring A, R3 and R4, R4 and R5, or R5 and R6 can be combined to form a heterocyclic or aromatic ring

Abstract: An arylidene compound is represented by the following formula (I): ##STR1## in which L.sup.1 is a divalent linking group comprising at least one --NH-- and at least one of --CO-- and --SO.sub.2 --; L.sup.2 is monomethine, trimethine or pentamethine; R.sup.1 is an alkyl group, an aryl group or a heterocyclic group; each of R.sup.2 and R.sup.3 independently is hydrogen, an alkyl group or an aryl group, and the number of the total carbon atoms contained in R.sup.2 and R.sup.3 is not more than 20. A silver halide photographic material containing an arylidene dye is also disclosed.

Abstract: A silver halide photographic material enabling very rapid processing and extremely low waste liquid processing, which comprises a transparent film support having provided on each side thereof at least one light-sensitive silver halide emulsion layer and a dye-fixed layer for absorbing the crossover light disposed nearer to the support, wherein a dye used in said dye-fixed layer is a compound which is decolorized in development processing.

Abstract: Disclosed is a silver halide photographic material and forming an image using the same, containing a hydrazine derivative in the emulsion layer(s) or in other hydrophilic colloid layer(s). At least one silver halide emulsion comprises silver halide grains containing (a) from 1.times.10.sup.-8 to 1.times.10.sup.-6 mol, per mol of silver, of an iridium compound, and (b) from 1.times.10.sup.-8 to 1.times.10.sup.-6 mol, per mol of silver, of a rhodium compound or from 1.times.10.sup.-9 to 1.times.10.sup.-5 mol, per mol of silver, of a rhenium compound, ruthenium compound or osmium compound, and having a silver chloride content of 50 mol % or more, the emulsion having been color-sensitized with a sensitizing dye of the following general formulae (1), (2) or (3): ##STR1## The material may be processed with a stable developer to give a hard image having few "black peppers".

Abstract: A benzimidazolocarbocyanine dye represented by the following general formula (I): ##STR1## wherein R.sub.11, R.sub.12, R.sub.13 and R.sub.14 each represents a substituted or unsubstituted alkyl group; X.sub.11, X.sub.12, X.sub.13 and X.sub.14 may be the same or different and each represents a hydrogen atom, a halogen atom, an unsubstituted alkyl group, an alkoxy group, an aryloxy group, an acyl group, an acyloxy group, an alkoxycarbonyl group, a carbamoyl group, a sulfamoyl group, a hydroxy group, a cyano group or a halogen-substituted alkyl group; Y represents an ion required for balancing charge; and m represents 1 or 2, and when the compound forms an inner salt, m is 1, and a silver halide photographic material containing said dye.