Abstract: The optical information recording medium comprises a recording layer on a surface of a support. The surface of the support has pregrooves with a track pitch ranging from 50 to 500 nm, the recording layer comprises an azo metal complex dye, the azo metal complex dye is a complex of one or more azo dye and transition metal ions of which number is equal to or greater than the number of the azo dye. The azo metal complex dye comprises two or more transition metal ions per molecule, and in a molecule of the azo metal complex dye.

Abstract: The present invention is to provide an optical recording medium which is capable of performing good recording and reproducing by using a laser having a wavelength of 300 to 900 nm, a novel azo metal chelate compound, and a novel azo compound. Furthermore, the present invention is to provide an optical recording medium having an azo metal chelate compound in a recording layer.

Abstract: An optical recording medium, which makes information be recorded and read with light having wavelength of 700 nm or shorter, with excellent light resistance, high-speed recording and high-density recording is provided. The optical recording medium comprises a substrate, a recording layer formed on the substrate and containing a host dye, which can make information be recorded or read by being irradiated with light having wavelength of 700 nm or shorter, and a reflective layer. The recording layer contains at least an azo metal-chelate dye additive, of which central metal ion is any one of Cu2+, Fe2+ and Co2+.

Abstract: A metal chelated dyestuff for inkjet recording comprising a water soluble azo metal chelated compound formed by an azo-based compound represented by the following general formula (1) having one or more hydrophilic group per molecule and a metal element; an aqueous inkjet recording liquid comprising an aqueous medium and the aforementioned metal chelated dyestuff; and an inkjet recording method using the aforementioned recording liquid are described, wherein the heterocyclic ring containing X1 is a triazole ring or the like; and Ar1 represents naphthyl group having a chelated group.

Abstract: A metal chelated dyestuff for inkjet recording is described, which is a water soluble azo metal chelated compound formed from an azo compound represented by the following general formula (1) and a metal element and is good at the clearness of color tone, light resistance, indoor discoloring and fading property, solubility, storage stability, and the like.

Abstract: A water soluble compound of Formula (1) or a salt thereof: wherein: Y is an electron withdrawing group; Y1 is H, alkyl or aryl, OR or NR2 in which each R independently is H, optionally substituted alkyl or optionally substituted aryl; or Y and Y1 together form a 5- or 6- membered ring; X1 is a group or atom with co-ordinates with M; M is hexa co-ordinate metal; G is a group of Formula (2), (3) or (4); and L1, L2 and L3, each independently represent ligands required to complete hexa-coordinate geometry around metal M; wherein: S is a water solubilizing group; Ar is a benzene or naphthalene group in which X is located ortho to the azo group; X is a group or atom which co-ordinates with M; Z provides atoms or groups which complete an optionally substituted 5- or 6-membered aromatic heterocyclic ring; Ring A is an optionally substituted aromatic ring; Ring B is an optionally substituted 5- or 6-membered aromatic heterocyclic ring; n is 0, 1, 2 or 3; and the * signify the points of attachment of t

Abstract: An optical recording medium dye is described. The optical recording medium dye is an azo metal chelate compound, wherein the azo metal chelate compound comprises the following structure: wherein R1 is a hydrogen atom, a C1-6 straight chain or branched alkyl group, an amino group, an alkylamino group or a tolylamino group; R2 is a hydrogen atom, a hydroxyl group, a halogen atom, an ether group, a C1-6 straight chain or branched alkyl group; R3 is a hydrogen atom, a C1-6 straight chain or branched alkyl group; R4 is a hydrogen atom, a C1-6 straight chain or branched alkyl group or a halogen atom; A3 is a residue forming a heterocyclic ring derivative together with a carbon atom and a nitrogen atom.

Abstract: An optical recording medium dye is described.

Abstract: Metallized azo thioether dyes having an azo group linking a substituted 3-hydroxypyridine nucleus to a phenyl nucleus are disclosed. The phenyl nucleus has an thioether substituent ortho to the azo group but does not have electron withdrawing substituents on the phenyl nucleus. The dyes are useful in optical recording elements.

Abstract: The invention relates to solid pigment preparations containing

Abstract: A compound which is a 6-substituted seco indoline of the formula (I): wherein: X is halogen or OSO2R where R represents H or C1-5 alkyl optionally substituted with from 1 to 4 hydroxyl, acid (COOH) or amino groups which amino may be optionally substituted by one or two C1-5 alkyl groups; Y is N02, N3, NHOH, NHR, NRR, N═NR, N(O)RR, SR or SSR, where R is defined as above, but that in the case where Y is SSR or N═NR, then R can also be another moiety of formula (I); or Y is a group of formula:

Abstract: Dye mixtures which comprise at least one anionic acid dye of the formula ##STR1## together with at least one anionic acid dye of the formula ##STR2## in which the substituents are as defined in claim 1, and the novel dyes of the formulae (1) and (2) are direct dyes for cellulosic fibre materials in particular. They have a high heat stability and are particularly suitable for one-bath, one-stage dyeing of polyester/cotton blend fabrics with a disperse dye for the polyester fibres under the dyeing conditions for polyester fibres.

Abstract: An azo metal chelate compound of an azo compound of the formula (I) with a metal: ##STR1## wherein A is a residue forming a heterocyclic ring together with the carbon atom and the nitrogen atom to which it is bonded, X is a residue forming an aromatic group together with the two carbon atoms to which it is bonded, R.sup.1 is an alkyl group which may be substituted, an aryl group which may be substituted, an alkenyl group which may be substituted, or a cycloalkyl group which may be substituted, Y is a hydrogen atom or a cation, and n is an integer of from 1 to 3.

Abstract: A dye-incorporated composition which comprises a cyanine type dye and an azo metal chelate compound comprising an azo type compound of the following formula (I): ##STR1## (wherein A is a residue forming a hetero ring together with the carbon atom and the nitrogen atom to which it is bonded, B is a residue forming an aromatic ring or a hetero ring together with the two carbon atoms to which it is bonded, and X is a group having an active hydrogen), and a metal, and an optical recording medium comprising a recording layer which contains the dye-incorporated composition.

Abstract: A metal chelate compound comprising a monoazo compound of the following formula (I): ##STR1## (wherein A is a residue forming a hetero ring together with the carbon atom and the nitrogen atom to which it is bonded, B is a residue forming an aromatic group together with the two carbon atoms to which it is bonded, and X is a hydrogen atom or a cation), and a metal, and an optical recording medium comprising a substrate and a recording layer formed thereon for information to be written in and/or read out by laser, wherein said recording layer contains the metal chelate compound comprising a monoazo compound of the above formula (I) and a metal.

Abstract: Disclosed is an imaging member which comprises a conductive substrate and a photogenerating layer containing a compound selected from the group consisting of: ##STR1## and mixtures thereof, wherein Cp represents a coupler group, l, m, n, and o can each be 0, 1, 2, 3, or 4, the sum of l, m, n, and o is from 1 to 8, and M is selected from the group consisting of metals, metal oxides, metal halides, and metal hydroxy compounds.

Abstract: The heavy metal complex dyes of azo or azomethine dyes of the formula ##STR1## in which D is the radical of a dizao component of the benzene, naphthalene or heterocyclic series, K--OH is the radical of the formula ##STR2## in which the symbols A, A', B and B' each represent a carbon atom or in which one of the symbols A, A', B or B' represents a nitrogen atom while the others represent a carbon atom, R is hydrogen, substituted or unsubstituted C.sub.1 -C.sub.4 alkyl or substituted or unsubstituted phenyl, and the ring E can be further substituted, Y is a nitrogen atom or a CH group, and n is 0 or 1, and in which --(CO).sub.n --OH is bonded to D in a position adjacent to --N.dbd.Y--, produce dyeings having good fastnesses particular very good crock, wet, wet crock and light fastness on nitrogen-containing or hydroxyl-containing fibre materials.

Abstract: Novel metallized azo dyes are useful as infrared absorptive dyes in inks for ink-jet printing.

Abstract: Asymmetrical 1:2 chromium complex dyestuffs which, in the form of the free acid, correspond to the formula ##STR1## wherein X represents CO or a direct bond andm represents 0 or 1 andthe rings a, b and c and, if present, fused-on benzene rings can carry further substituents customary in the chemistry of metal complex dyestuffs,are used for dyeing materials containing amide groups, in particular leather, and produce dyeings having a green hue and good general fastness properties.

Abstract: Nondiffusible compounds capable of releasing at least one diffusible cyan dye moiety having the formula: ##STR1## wherein: (a) Y represents the atoms necessary to complete a 5- or 6-membered aromatic heterocyclic fused ring;(b) CAR represents a ballasted carrier moiety capable of releasing the diffusible cyan dye moiety as a function of development of a silver halide emulsion layer under alkaline conditions;(c) R represents a hydroxy group, a salt thereof, or a hydrolyzable precursor thereof, or CAR which is linked to the dye moiety through an oxygen atom thereon; and(d) n is 0, 1 or 2 with the proviso that when n is 0, then R is CAR which is linked to the dye moiety through an oxygen atom thereon.

Abstract: Nondiffusible compounds capable of releasing at least one diffusible magenta dye moiety having the formula: ##STR1## wherein: (a) X represents the atoms necessary to complete a 5- or 6-membered heterocyclic ring;(b) Y represents the atoms necessary to complete a 5- or 6-membered heterocyclic fused ring;(c) CAR represents a ballasted carrier moiety capable of releasing the diffusible magenta dye moiety as a function of development of a silver halide emulsion layer under alkaline conditions;(d) R represents a hydroxy group, a salt thereof, or a hydrolyzable precursor thereof, or CAR which is linked to the dye moiety through an oxygen atom thereon; and(e) n is 0, 1 or 2, with the proviso that when n is 0, then R is CAR which is linked to the dye moiety through an oxygen atom thereon.

Abstract: Coordination complexes of a polyvalent metal ion and a nondiffusible compound capable of releasing at least one diffusible cyan dye moiety having the formula: ##STR1## wherein: (a) Y represents the atoms necessary to complete a 5- or 6-membered aromatic heterocyclic fused ring;(b) CAR represents a ballasted carrier moiety capable of releasing the diffusible cyan dye moiety as a function of development of a silver halide emulsion layer under alkaline conditions;(c) R represents a hydroxy group, a salt thereof, or a hydrolyzable precursor thereof, or CAR which is linked to the dye moiety through an oxygen atom thereon; and(d) n is 0, 1 or 2 with the proviso that when n is 0, then R is CAR which is linked to the dye moiety through an oxygen atom thereon.

Abstract: Photographic elements, diffusion transfer assemblages, coordination complexes and processes are described which employ a novel nondiffusible compound having a releasable yellow dye moiety or precursor thereof, the compound having the formula: ##STR1## wherein: (a) X represents the atoms necessary to complete a 5- or 6-membered aromatic heterocyclic fused ring;(b) Z represents alkyl, substituted alkyl, aryl or substituted aryl;(c) R represents CN or J-L;(d) J represents a bivalent ##STR2## (e) L represents alkyl, substituted alkyl, aryl, substituted aryl, or can be taken together with Z to complete a carbonyl-containing 5- or 6-membered heterocyclic or carbocyclic ring;(f) Z.sup.