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JP3248814B2 |
PURPOSE: To obtain the subject composition excellent in environmental stability and long-term stability and also in fastness (water resistance and light resistance) of writing by using a specified basic dye salt. CONSTITUTION: This ink c...
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JP2002012784A |
To produce a yellow pigment which is excellent in transparency and coloring power, can be used in the applications where it is subjected to high thermal history and exerts little influence on the environment when it decomposes.The disazo...
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JP2002003740A |
To obtain a black dye composition excellent in solubility, and solution stability.This dye composition comprising a tetrazo-based black dye (C.I. Direct Black 19 or the like) is produced by reducing a nitro compound prepared by carrying ...
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JP2002003742A |
To provide a method for producing a dye composition excellent in solubility and solution stability.A plurality of dye components having a sulfo group and an amino group or salts thereof are produced by a diazo coupling method and the pH ...
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JP2001354887A |
To solve the problem of how forming a continuous film having water- repellency on the surface of a primary particle to improve the transparency and dispersibility of a disazo yellow pigment.This disazo yellow pigment is obtained by treat...
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JP2001524143A |
A composition comprising:(i) a dye of Formula (1) or a salt thereof: wherein n is 0 or 1; and(ii) at least one dye selected from a dye of the Formula (2), (3), (4), (5), (6), (7) and salts thereof as defined in the description. Also clai...
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JP3232931B2 |
PURPOSE: To obtain the subject pigment excellent in terms of hygiene, reduced in esp. aromatic amine content, by adding hypoiodous acid to a disazo pigment slurry followed by conducting a pH adjustment to effect deposition of iodine and ...
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JP2001522829A |
Amyloid binding compounds which are derivatives of Chrysamine G, pharmaceutical compositions containing, and methods using such compounds to identify Alzheimer's brain in vivo and to diagnose other pathological conditions characterized b...
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JP2001311033A |
To provide a pigment composition whose dispersibility is easily and efficiently improved in water and is excellent also after dried, and to provide a method for producing the same.This method for producing the pigment composition, charac...
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JP2001521563A |
The invention relates to a color-pigmented high molecular weight organic material structured from a radiation-sensitive precursor by irradiation, the pigmentation of which material consists of extremely fine particles, at least 80 mol % ...
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JP3223785B2 |
To obtain an ink jet recording ink having excellent water resistance, transparency and good stability of delivery from a nozzle by dispersing a treated pigment prepared by subjecting a specified insoluble azo pigment salt milling in an a...
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JP2001296674A |
To easily produce electrographic photoreceptor, having high sensitivity and to easily and stably produce various material of an electrophotographic photoreceptor, etc., by greatly enhancing the coating stability of a dispersion. An asymm...
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JP2001296677A |
To provide a photoreceptor which ensures low residual potential and has high sensitivity, even at low illuminance as an electrophotographic photoreceptor containing a phthalocyanine compound as an electric charge generating material. The...
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JP3214930B2 |
PURPOSE: To obtain the title ink improved in the suitability for recording, stability of delivery, response of delivery and the water resistance, weather resistance, abrasion resistance and sharpness of images by dissolving a specified p...
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JP2001261995A |
To provide a green color pigment composition which has a brilliant hue, when dispersed in a vehicle, and does not float a blue pigment or a yellow pigment.This method for producing a green pigment composition, characterized by performing...
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JP3204570B2 |
PURPOSE: To obtain a new compound having excellent solubility to organic solvents, especially aliphatic hydrocarbon solvents and strike-through property to paper and, accordingly, useful as a coloring agent for an oil-base ink compositio...
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JP3179931B2 |
PURPOSE: To provide a dye composed of a specific red dye, excellent in light-fast and useful for dyeing acrylic fiber, polyester fiber dyeable by cationic dyes, etc. CONSTITUTION: The dye composed of a red dye expressed by formula [R1 is...
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JP3173103B2 |
PURPOSE: To provide the subject new pigment resistive to thermal decomposition even in a remarkably sever condition of high temperatures, excellent in heat resistance when used as a pigment in a resin and useful as a printing ink, plasti...
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JP3165764B2 |
PURPOSE: To produce a trisazo dye excellent in, e.g. light resistance, water resistance and safety to human body and useful for black ink such as ink for writing utensils by using bis(aminophenyl)cyclohexane capable of tetrazotization as...
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JP2001123087A |
To provide titanyl phthalocyanine-azo pigment mixed crystals suitable for an electrophotographic photoreceptor excellent in potential stability in repeated use, preparation thereof, and an electrophotographic photoreceptor, an electropho...
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JP3161565B2 |
PURPOSE: To provide an electrophotographic photoreceptor having high sensitivity and high durability showing little decrease in photoreceptivity even for repeated use and to provide a master printing plate for electrophotographic plate m...
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JP3157305B2 |
PURPOSE: To dye paper in blue in good fastness without converting the dye to a copper complex by dyeing the paper with a specific dye. CONSTITUTION: Paper is dyed with dye of formula I [Y is sulfo or carboxy; X is formula II (D is a resi...
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JP3156355B2 |
PURPOSE: To obtain a recording liquid, comprising a water-soluble dye having a specific structure, capable of providing quick-drying properties while maintaining a high grade of images, excellent in preservation stability and useful as t...
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JP3154818B2 |
PURPOSE: To provide electrophotographic photosensitive material excellent in the repeating characteristic with high sensitivity by providing a photosensitive layer containing a specific azo pigment, on a conductive base substance. CONSTI...
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JP3143525B2 |
PURPOSE: To improve a charge carrier generating efficiency and its injection efficiency in a photosensitive layer and to attain an excellent sensitivity and a potential stability at the time of repeated uses by using an azo pigment speci...
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JP3143566B2 |
PURPOSE: To improve the production efficiency and injection efficiency of a charge carrier and to obtain excellent characteristics of sensitivity and potential stability for repeated use by incorporating an azo pigment having a specified...
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JP3122956B2 |
PURPOSE: To obtain the aqueous ink free from lowering of concentration of written dot or burring even after storing for a long period while turning pen point upward when used for a writing tool having a resin pen point in which the flow ...
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JP2000517371A |
PCT No. PCT/IB97/01063 Sec. 371 Date Mar. 8, 1999 Sec. 102(e) Date Mar. 8, 1999 PCT Filed Sep. 8, 1997 PCT Pub. No. WO98/10021 PCT Pub. Date Mar. 12, 1998Tetrakisazo dyes of formula (I), as defined in claim 1, optionally in admixture wit...
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JP3117759B2 |
Azo chromophores having polyoxyalkylene substituents are linked together by a covalent bond or by an intervening connecting group to form dimers or trimers. The polyoxyalkylene substituents are straight or branched chain polymers primari...
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JP2000345063A |
To obtain a black recording liquid which is excellent in safety, has a high water solubility, is stable even in a long-term storage, gives a print image having a high density, and is excellent in resistances to water and light by incorpo...
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JP3110211B2 |
PURPOSE: To provide an electrophotographic photoreceptor excellent in various characteristics such as electrification characteristics, electric charge retentivity, sensitivity, residual potential and image forming property and preventing...
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JP2000290521A |
To provide a reactive dye for obtaining dark-blue dyed and printed materials being excellent in fastness by selecting a polyazo compound having a triazine group or a salt of the compound. A polyazo compound represented by formula 1 [wher...
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JP2000290517A |
To provide a disazo compound as a black dye, which is useful for the preparation of a black recording solution that ensures a good print quality, a recorded image of a high density, excellent waterproofing and light fastness, and good st...
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JP3100461B2 |
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JP3096074B2 |
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JP2000273345A |
To obtain an azo lake pigment composition having a high clarity, a high color intensity, and a vivid hue by selecting a composition obtained by coupling an aromatic diazonium compound with 3-hydroxy-2-naphthoic acid and containing a pigm...
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JP3090487B2 |
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JP2000250241A |
To obtain an electrophotographic photoreceptor which has high electrifying potential, is highly sensitive and exhibits stable performance without changes in various characteristics even when it is used repeatedly incorporating a specific...
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JP2000239548A |
To obtain an alcohol-soluble azo dye represented by a specific formula, manifesting good solubility and solution stability to an alcoholic solvent, especially ethanol, excellent in hue and color concentration, having sufficient dyeing po...
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JP3078424B2 |
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JP3071490B2 |
Disclosed is an imaging member which comprises a conductive substrate and a photogenerating layer containing a compound selected from the group consisting of: I II III and mixtures thereof, wherein Cp represents a coupler group.
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JP2000198943A |
To obtain an azo dye being useful for dyeing or printing a synthetic textile material, having good fastness, especially, thermal migration resistance by diazotizing a specified diazo component and coupling the product with a specified co...
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JP3063489B2 |
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JP3064594B2 |
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JP3057099B2 |
A magenta toner for developing electrostatic images which comprises a resin and at least one kind of the dis-azo dye represented by the following formula [I]: [I] wherein X represents methyl group, ethyl group or alkoxy group having 1 to...
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JP3048742B2 |
PURPOSE: To obtain a yellow dye in salt form which is excellent in solubilities in hydrophilic alcoholic solvents and capable of giving an ink compsn. excellent in stability in a dissolved state of the dye even after the lapse of time an...
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JP2000136317A |
To obtain a disazo dye compound having a specified structure and being useful to dye a cellulosic material, especially, paper. This dye is one having a structure of formula I [wherein Ac is acetyl, propionyl, or benzoyl substituted with ...
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JP3033190B2 |
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JP3032064B2 |
PURPOSE: To obtain a new fluorine-containing azo compound, having characteristics of a fluorine-containing compound and an azo coloring matter and useful as a coloring matter component of a fluorine-based coating or a fluorine-based resi...
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JP3026625B2 |
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