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JP4234355B2 |
A finely divided pigment is formed of an aggregate of primary particles. A number of primary particles of not greater than 0.1 mu m in particle size is at least 95% of an entire number of the primary particles, and a number of primary pa...
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JP2009013290A |
To provide a new azo compound exhibiting a high color concentration or its salt.The present invention provides the azo compound represented by formula (I) or its salt. In the formula (I), R1 to R4 are each independently a hydrogen atom, ...
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JP2009013324A |
To provide a production method of a disazo pigment capable of preparing a printing ink excellent in transparency and coloring power.A production method of a rosin-treated disazo pigment composition, comprising coupling reaction of acetoa...
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JP2009501249A |
A pigment dispersion includes a color pigment represented by formula (I): wherein X1 to X4 are independently selected from the group consisting of hydrogen and a halogen atom; R1 to R10 are independently selected from the group consistin...
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JP2008260900A |
To provide a dye, an ink and a recording method that can inhibit the color change or discoloration of an image formed by inkjet recording, and thus can stably maintain the images.The dye for inkjet recording has a residual group of a sta...
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JP2008222825A |
To provide a black ink composition excellent in a coloring property on mat paper.The ink composition contains a dye represented by formula (1): A1-N=N-A2-N=N-A3 as a black color material and has pH of 11 or higher. The recording method u...
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JP2008537566A |
A compound of Formula (1) or salt thereof: Also, claimed are inks, a process for printing an image on a substrate using the inks and substrates printed with said inks. The compounds of Formula (1) provide colorants especially suitable fo...
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JP4148905B2 |
A lightfast colorant and a lightfast ink composition including the lightfast colorant utilize a lightfast colorant that is derived by covalently binding a cinnamate derivative and a conventional colorant. The lightfast colorant improves ...
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JP2008195778A |
To provide a black ink composition having excellent light resistance and bronzing resistance and giving a recorded matter having good printed letter quality and image fastness.The black ink composition at least contains water and specifi...
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JP2008530327A |
Concentrated aqueous dye solutions comprising one or more cationizable dyes, an organic acid and water are useful for dyeing and/or printing organic substrates and for producing inkjet printing inks.
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JP2008528720A |
The present invention provides 6-azo-5,5'-dihydroxy-7,7'-disulfo-2,2'-dinaphthylamine derivatives, their use as dyes, dyed paper and formulations comprising them.
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JP4128634B2 |
Basic azo compounds of formula I are suitable for coloring or printing especially of paper and leather.
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JP4123753B2 |
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JP4109333B2 |
The present invention provides a novel polymorphic form of Colour Index Pigment Yellow 12 in a crystalline form which exhibits an X-ray diffraction pattern having three prominent X-ray diffraction lines corresponding to "d" spacings of 1...
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JP2008521956A |
Dissymmetrical cationic polyazo derivatives (I) (where the electrical neutrality of (I) is ensured by means of one or more cosmetic anions) are new. Dissymmetrical cationic polyazo derivatives (I) of formula (Dye1-L-Dye2) (where the elec...
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JP2008138037A |
To provide an ink for inkjet recording having excellent light resistance, heat resistance and transparency and enabling stable ejection in inkjet recording.The ink for inkjet recording contains a coloring material and a thermosetting res...
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JP2008516032A |
The present invention relates to polyazo dyes of the general formula I where the variables are each as defined in claim 1, processes for their preparation and their use for dyeing or printing hydroxyl- and/or carboxamido-containing mater...
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JP4055333B2 |
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JP2008013708A |
To provide a method and an apparatus for producing a charge generating material which can efficiently remove impurities and generate a highly pure charge generating material; a charge generating material produced by the method for produc...
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JP2008500421A |
Concentrated aqueous dye solutions comprising one or more cationizable dyes, an organic acid and water and their use for dyeing and/or printing organic substrates and for producing inkjet printing inks.
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JP2007332350A |
To provide a fluorenone bisazo pigment wherein the amounts of a component lowering its capability and a residual solvent are remarkably low, and a method for production thereof which is efficient and is reduced in the load on the environ...
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JP4016624B2 |
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JP3994736B2 |
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JP2007269857A |
To provide a novel azo compound exhibiting a high performance as a pigment for inkjet, and a pigment for inkjet containing it. The novel azo compound is represented by general formula (1): (wherein X is a chlorine or an acetamido group)....
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JP3973256B2 |
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JP3973254B2 |
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JP3966543B2 |
To provide toner whose transfer property is excellent, with which residual toner after transfer is reduced and by which the occurrence of filming to a cleaning member and a photoreceptor is eliminated or the occurrence of a phenomenon th...
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JP2007204655A |
To provide a fine Yellow 12 preparing printing ink excellent in transparency and heat resistance. This C. I. Pigment Yellow 12 is characterized by showing ≥0.94 and ≤1.80 half value width of peak intensity within 8.0 to 11.8° (2θ) ...
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JP2007197480A |
To provide an ink composition having excellent jetting stability without deteriorating ozone resistance and light resistance and to provide an ink set and a method for recording using the ink composition. The ink composition comprises at...
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JP2007138125A |
To provide a new ink composition having excellent absorption characteristics in color reproducibility as yellow color of three primary colors, also having sufficient fastness to light, heat, moisture and an active gas in the environment,...
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JP3902672B2 |
PURPOSE: To obtain a novel compound useful for dyeing of paper, etc., which yields a red blue to blue level dyeing and shows a good fastness to light and wet fastness. CONSTITUTION: The novel compound is a compound of formula I (wherein ...
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JP2007508428A |
The invention relates to an azo pigment preparation containing a) at least one azo pigment, b) a resin based on colophonium or modified colophonium with an acid value equal to or higher than 320 mg KOH/g, and c) an ammonium salt of a sul...
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JP3885503B2 |
To provide a disazo pigment capable of preparing printing ink excellent in transparency, fluidity, flushing property and having a characteristic not to color wastewater from flushing or excellent in dispersibility when ink is formed unde...
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JP2006527309A |
The present invention relates to the use of anionic azo dyes which have at least one acidic group in the form of its salt and at least 2 azo groups and also to the use of their anionic metal complexes for dyeing leather.
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JP3848352B2 |
To provide an inkjet black ink which is improved in weather resistance, optical density and fixation resistance to recording head nozzles. The invention relates to the inkjet black ink containing at least a colorant and water-soluble org...
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JP3845080B2 |
To obtain a new asymmetric trisazo pigment useful as a photoelectric conversion material having high sensitivity over a wide wavelength region from visible light to a near infrared light region. This asymmetric trisazo pigment is represe...
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JP3795092B6 |
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JP3840282B2 |
To obtain a compound having a N,N-bis-(carboxylalkyl)amino group which is effective as a recording liquid for ink jet printing and shows excellent storage stability, fastness and water resistance. A compound of the present invention repr...
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JP3837581B2 |
An azo color for color filters which has at least one monosubstituted sulfonamide group in its molecule and is soluble in an aqueous alkali solution and organic solvents, and a process for producing a color filter having a number of colo...
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JP3827716B2 |
A bis-azo compound represented by the following general formula (1), a tautomer thereof or a salt thereof: wherein R represents a substituted or unsubstituted phenyl group or a substituted or unsubstituted heteroaryl group and X represen...
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JP3803394B2 |
PURPOSE: To obtain a polarizing film improved in poilarizing capability by dyeing a polymer film with a water-sol. dye contg. at least one azo compd. selected from azo compds. represented by specific formulas and orienting the film by st...
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JP3798434B2 |
PURPOSE: To obtain a dye preparation for ink jet process comprising specified amts. of a specified dye, a specified org. solvent and water, free from foreign salts and excellent in light fastness, water resistance and friction resistance...
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JP3797103B2 |
To provide a stable pigment composition or pigment dispersion excellent in nonaggegativeness 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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JP2006176585A |
To provide a water-based black ink composition high in both light resistance and ozone resistance, presenting good hue on various media including sheets of plain paper as a black ink, securing sufficiently developed color density, slight...
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JP3794647B2 |
PURPOSE: To obtain the pigment capable of functioning as an electron generating substance in a photoreceptor or an optically conductive substance and useful for producing electrophotographic photoreceptors having high sensitivity CONSTIT...
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JP3790279B2 |
PURPOSE: To obtain a pigment capable of providing a color filter having excellent spectral characteristics, especially a high color purity and transmittance by mixing a specific disazo pigment with phthalocyanine green. CONSTITUTION: Thi...
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JP3781859B2 |
To obtain an ink composition capable of reexpressing a brilliant magenta color, excellent in light resistance and water resistance, and capable of providing stable images against the changes of environments (temperature, humidity) during...
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JP3769951B2 |
To provide a pigment which has as much transparency and concentration as able to produce an offset yellow ink of process and can give an ink excellent also in fluidity, by coupling a diazo component comprising a tetrazo compound of 3,3'-...
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JP3759760B2 |
PURPOSE: To obtain the subject dye having a specified structure, being excellent in color denseness, de exhaustion, fixability, monochromaticity, the wet color fastness, light fastness, water and sweat fastness, or the like, of a died pi...
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JP2006077141A |
To provide a pigment composition for printing ink with improved dispersibility and dispersion stability, excellent in fluidity.The invention relates to the method for producing the pigment composition comprising dry crushing of an organi...
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