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JP2003285539A |
To provide an ink jet recording method capable of recording an image free from bleeding in boundary of the image and has small change in density and color of the image after an elapse of time as compared with those of the image just prin...
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JP3451755B2 |
PURPOSE: To provide a black recording solution which contains specific coloring matters and an aqueous medium, is suitable for ink jet recording, realizes high printing quality even in printing on common paper with recorded images of inc...
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JP2003261792A |
To provide an organic pigment which has good dispersibility and storage stability in an aqueous dispersion system and has a high chroma.This hydrophilic azo-based organic pigment is characterized by containing at least one sulfonic group...
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JP2003261803A |
To provide an ink for ink-jet recording which shows an excellent light fastness, inhibits generation of blur and can form an ink-jet image with a high quality, an ink set for ink-jet recording and an ink-jet recording process using the i...
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JP2003253188A |
To provide an inexpensive yellow monoazo pigment composition for image recording excellent in image reproduction and image retention, and safe and suitable as a well-balanced yellow pigment colorant for image recording.This yellow pigmen...
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JP3412336B2 |
PURPOSE: To obtain a black-based recording liquid containing an aqueous medium and a specific azo-based pigment, having good printing quality even when recorded on plain paper and high concentration of recording image, excellent in light...
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JP3413252B2 |
PURPOSE: To provide a dichromatic crystal applicable to the dispersed grain of a fine-grain dispersed type dimming element with a dye as the base. CONSTITUTION: A dichromatic crystal has two or more azo groups in a molecule represented b...
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JP2003128952A |
To solve various problems by finely dividing an azo pigment, facilitating dispersion of the azo pigment into a vehicle and reducing a crystal change of the pigment.This method for producing the pigment composition comprises dry pulverizi...
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JP3393870B2 |
The invention provides novel bisazo compounds which is obtained by coupling two molecules of a 2-hydroxynaphthalene-3,6-dicarboxylic acid derivative and a compound having two diazo groups in its molecule, as well as a process for produci...
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JP2003040850A |
To provide a method for high-purity diazonium salt production and a method for producing a clear aromatic azo compound using the high-purity diazonium salt. This method for high-purity diazonium salt production comprises, in reacting an ...
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JP2003012956A |
To provide a phthalocyanine colorant which has absorption characteristics excellent in color reproducibility as a colorant for three primary colors, has sufficient fastness to light, heat, humidity, and active gases in the environment, a...
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JP2003012960A |
To provide an aqueous ink composition which contains a pseudo- unidimensional crystalline yellow organic pigment, does not cause blur or offset in recording on plain paper, is excellent in resistances to water, light, and rubbing, and en...
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JP2003003085A |
To provide a printing ink having a superior staining power and fluidity.The production method for pigment-yellow 14 consists of a process (A) enabling a pigment-water slurry and a water-soluble carboxylic acid compound to coexist and of ...
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JP3361653B2 |
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JP2002363433A |
To provide a method for pigment yellow 14 production, by which a printing ink having excellent tinting strength and transparency of printing ink can be prepared, and to obtain a printing ink. The method for pigment yellow 14 production i...
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JP3358349B2 |
PURPOSE: To obtain a recording fluid which is used in ink jet recording and for writing utensils, produces black recordings when used for recording on paper, is excellent in print density and light and water resistances, and also is supe...
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JP2002341594A |
To provide an electrostatic charge image developing toner showing preferable fixing property and offset resistance, excellent color reproducibility and transparency and stable electrification behavior even for continuous printing.In the ...
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JP2002341595A |
To provide an electrostatic charge image developing toner showing preferable fixing property and offset resistance, excellent color reproducibility and transparency and stable electrification behavior even for continuous printing.The ele...
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JP2002539316A |
Azoxy dyes of the general formula I in the form of the free acid where n is 0 or 1, each R1 is selected from the group consisting of methoxy, hydroxyl and carboxyl, each R2 is selected from the group consisting of carboxyl, amino, C1-C4-...
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JP2002323779A |
To provide a laminated electrophotographic photoreceptor which obviates the occurrence of trouble even if the photoreceptor is manufactured by using a coating liquid for a charge generating layer preserved for a long period of time.This ...
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JP2002302675A |
To provide a liquid crystal composition which exhibits a high dichroic ratio and, when used for a display element, can improve the contrast of display.This liquid crystal composition contains a compound represented by formula (1) [wherei...
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JP2002302626A |
To provide a recording ink, an ink jet recording process, processes for manufacturing color filters and liquid crystal display panels, and a liquid crystal display panel.The recording ink contains at least a water-soluble azopyridone- ba...
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JP2002293003A |
To provide a recording medium, by which the image quality and preservability of an image to be recorded are improved by a method wherein dye molecules are prevented from contacting with the oxygen molecules in the air dye is prevented fr...
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JP2002256163A |
To provide a method for producing a disazo compound which can reduce the toxicity equivalent (TEQ) concentration of coplanar polychlorinated biphenyls (PCB).The method for producing an aromatic disazo compound by the diazo coupling react...
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JP3323371B2 |
To provide a yellow pigment having a minimum inherent frictional charging effect to be used in both positively- and negatively-chargeable toners and sufficient clarity and useful for printing inks, coating materials, paints for painters ...
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JP2002241633A |
To provide a method for producing pigment yellow 12 capable of preparing a printing ink excellent in transparency of the printing ink.This method for producing the pigment yellow 12 is characterized by comprising (A) a process of synthes...
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JP3315757B2 |
An aromatic diazo compound is composed mainly of a compound of Formula (I) or Formula (II), and a photosensitive composition using the same. The aromatic diazo compound can be handled under a white light, is highly photosensitive, has go...
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JP2002201376A |
To provide a Pigment Yellow 12 capable of preparing a printing ink with high clarity.The objective method for producing Pigment Yellow 12 is characterized by comprising the steps of (A) preparing a mixture of a disazo compound obtained b...
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JP2002201375A |
To provide a printing ink excellent in clarity, fluidity and heat resistance.The objective method for producing Pigment Yellow 12 is characterized by comprising the steps of (A) preparing a mixture of a disazo compound obtained by coupli...
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JP2002201377A |
To provide a stable pigment composition or pigment dispersion excellent in non-aggegativeness and fluidity and suitable for offset inks, gravure inks, coatings, ink-jet inks and the like.This pigment composition is characterized by compr...
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JP2002173628A |
To provide an offset ink excellent in storage stability, heat resistance and transparency.This aqueous paste of a pigment consists of a coloring material of a disazo pigment, 2-30 wt.% alkali soluble polymer based on the coloring materia...
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JP2002173610A |
To provide an offset ink having high storage stability, heat resistance and transparency.The objective aqueous pigment paste comprises a disazo pigment, 2-30 wt.%, based on the pigment, of an alkali-soluble polymer, a bivalent or higher ...
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JP3290875B2 |
To obtain a photoconductive material having high sensitivity and high durability by incorporating a specified bisazo compd. into an electric charge carrier generating material. A bisazo compd. represented by the formula is incorporated i...
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JP2002516621A |
The present invention recites a method comprising reacting in a solvent in the presence of a base a) at least one diacidic monomer comprising about 1 to 100 mole % of at least one light-absorbing monomer having a light absorption maximum...
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JP2002161214A |
To provide a method for producing pigment yellow 12 from which a printing ink having excellent transparency of printing ink can be prepared.This pigment yellow 12 having a characteristic peak at a diffraction angle 9.90±0.20° (Cu-Kα) ...
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JP2002161216A |
To obtain a colorant having affinity for water, excellent dispersibility and color development so as to prevent agglomerate and precipitate of colorant and composition in the circumference of the nozzle-tip in an ink-jet recording, and f...
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JP2002146225A |
To produce a printing ink excellent in clarity, fluidity, an heat resistance.Pigment Yellow 12 of this invention is produced by a process comprising (A) the step of causing an aqueous slurry of Pigment Yellow 12 to coexist with a water-s...
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JP2002146226A |
To produce a printing ink excellent in clarity, fluidity, and heat resistance.Pigment yellow 12 of this invention is produced by a process comprising (A) the step of causing an aqueous pigment slurry of pigment yellow 12 to coexist with ...
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JP2002514263A |
Pigment dispersions comprising a polymer, a compound of the formula (I) and a water-free solvent or a water-containing solvent, process for their preparation and also the use of (I) and the pigment dispersions of the invention.
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JP2002138216A |
To provide a process for efficiently, simply and easily producing an azo pigment, an electrophotographic photoreceptor containing the azo pigment, an electrophotographic method, an electrophotographic apparatus, and a process cartridge f...
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JP2002129050A |
To provide a production method for an azo coloring agent that is environmentally friendly and economical.The production method for the azo coloring agent is composed of the following (a), (b) and (c): (a) one or more kinds or mixture of ...
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JP2002512647A |
This invention relates to a black-pigmented high molecular weight organic material which is structured from a radiation-sensitive precursor by irradiation, the pigmentation of which material consists of coloured organic pigments, at leas...
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JP3276310B2 |
To obtain a colored curing agent composition having excellent storage stability and used for curable resins such as unsaturated polyesters by including an organic peroxide and a dye having a specified chemical structure. It is desirable ...
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JP2002090526A |
To provide a dichroic polarizing element which can be easily manufactured, which has a high polarization degree and which can respond to the requirements for a small-size, this and lightweight liquid crystal display device, and to provid...
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JP2002082458A |
To provide an electrophotographic photoreceptor having a high potential by electrification and high sensitivity, free of change in various characteristics even after repeated use and capable of exhibiting stable performance.In the electr...
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JP2002508802A |
Pigment dispersions comprising a polymer, a compound of the formula (I) and a water-free solvent or a water-containing solvent, process for their preparation and also the use of (I) and the pigment dispersions of the invention.
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JP3264051B2 |
PURPOSE: To provide a recording liquid capable of obtaining black, red or yellow recorded materials when recorded on plain paper, excellent in print denseness, light resistance, water resistance and preservability, suitable for ink jet r...
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JP3261734B2 |
PURPOSE: To ensure high image quality and improve dryability, storage stability, safety and clogging resistance by incorporating a specific water-soluble dye in water. CONSTITUTION: The recording fluid compriser water, 0.1-10wt.% water-s...
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JP2002060644A |
To produce a disazo compound that has not only a yellow color but also several different hues other than a yellow color and can satisfy the requirements with respect to light exposure property, solvent resistance, pigment dispersibility,...
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JP2002030230A |
To provide a method for producing an organic pigment by a thermal treatment which is extremely stably to needed process conditions, can simply be scaled up, and is friendly to environments, inexpensive and is technically reliable.This me...
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