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49results about "Tetrazo dyes" patented technology
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Ink jet black ink, ink set, ink jet recording method, ink cartridge, recording unit and ink jet recording apparatus
InactiveUS7198665B2Solve the lack of densityHigh image densityMeasurement apparatus componentsDuplicating/marking methodsDecompositionNitrogen
It is an object of the present invention to provide a black ink for an ink jet which possesses preferable color as a black ink for an ink jet, can attain high ozone resistance, high image density and sticking recovery property, and can suppress the decomposition of the compound represented by the general formula (I) or salt thereof during long-term storage. According to the present invention, there is provided a black ink for an ink jet characterized by comprising at least a compound represented by the following general formula (I) or a salt thereof, characterized in that the black ink comprises at least one moisture-retaining nitrogen compound, and the pH of the ink and the pH of the ink after storing for 10 days in an environment at a temperature of 60° C. are 9.5 or less.
Owner:CANON KK
Ink jet black ink, ink set, ink jet recording method, ink cartridge, recording unit, and ink jet recording apparatus
InactiveUS7198664B2High fastnessImprove image qualityMeasurement apparatus componentsDuplicating/marking methodsImaging qualityEngineering
An object of the present invention is to provide an ink jet black ink by which an image quality comparable to that of a silver halide photograph is obtained with a compatibility between a high fastness and a high image quality when the ink is printed on a recording medium, and which is excellent in optical density and color tone particularly in half tone, and is also excellent in gas resistance. The present invention provides an ink jet black ink comprising a dye and a black pigment, wherein the dye is at least one kind selected from the group consisting of compounds represented by the following formula (I) or salts thereof, and compounds represented by the following formula (II) or salts thereof
Owner:CANON KK
Black ink composition, ink set, ink cartridge, inkjet recording method and recorded product
InactiveUS7465346B2Guaranteed fastnessImprove printing qualityDisazo dyesMeasurement apparatus componentsPolymer scienceColoring agents
Owner:SEIKO EPSON CORP
Ink jet black ink, ink set, ink jet recording method, ink cartridge, recording unit and ink jet recording apparatus
InactiveUS20060102048A1Good effectHigh image densityMeasurement apparatus componentsDuplicating/marking methodsDecompositionNitrogen
It is an object of the present invention to provide a black ink for an ink jet which possesses preferable color as a black ink for an ink jet, can attain high ozone resistance, high image density and sticking recovery property, and can suppress the decomposition of the compound represented by the general formula (I) or salt thereof during long-term storage. According to the present invention, there is provided a black ink for an ink jet characterized by comprising at least a compound represented by the following general formula (I) or a salt thereof, characterized in that the black ink comprises at least one moisture-retaining nitrogen compound, and the pH of the ink and the pH of the ink after storing for 10 days in an environment at a temperature of 60° C. are 9.5 or less.
Owner:CANON KK
Azo compound and salt thereof
ActiveUS20070079740A1Improve performanceImprove heat resistanceDisazo dyesOrganic chemistryPhenyl groupHydroxy group
The present invention relates to an azo compound represented by the following formula (1): wherein A denotes a phenyl group having 1 to 3 substituents such as sulfonic acid group, amino group, lower alkyl groups and lower alkoxyl groups, or a naphthyl group, B denotes hydrogen atom, sulfonic acid group, a lower alkyl group, a lower alkoxyl group or the like, each of R1 to R4 independently denotes hydrogen atom, a halogen atom, a lower alkyl group, a lower alkoxyl group or the like, D denotes —NHCO—, —N═N— or —NH—, E denotes hydrogen atom, a lower alkyl group or a phenyl group having 1 to 3 substituents such as hydroxyl group and amino group, n denotes 0 or 1, and m denotes 0 or 1, or a salt thereof, or a copper complex compound of either of them, which is used for a polarizing plate having excellent polarization performance and durability and furthermore little color leakage in visible light range.
Owner:NIPPON KAYAKU CO LTD +1
Water-base black ink composition and colored material
The present invention relates to a water-based black ink composition comprising a water-soluble black dye (A) exhibiting ozone fastness and a condensate compound (B) of 4,4′-dinitrostilbene-2,2′-disulfonic acid and aminobenzenes or a reduction product (C) thereof. Said ink composition is suitable for use in ink-jet recording, and realizes neutral hue and black color of high printing density. Further, a printed matter obtained is excellent in ozone gas fastness, light fastness, moisture fastness and color rendering properties. Still further, storage stability as a recording liquid is excellent.
Owner:NIPPON KAYAKU CO LTD
Azo compound and salt thereof
ActiveUS7304147B2Improve performanceIncrease resistanceOrganic chemistryDisazo dyesHydrogen atomPhenyl group
The present invention relates to an azo compound represented by the following formula (1):wherein A denotes a phenyl group having 1 to 3 substituents such as sulfonic acid group, amino group, lower alkyl groups and lower alkoxyl groups, or a naphthyl group, B denotes hydrogen atom, sulfonic acid group, a lower alkyl group, a lower alkoxyl group or the like, each of R1 to R4 independently denotes hydrogen atom, a halogen atom, a lower alkyl group, a lower alkoxyl group or the like, D denotes —NHCO—, —N═N— or —NH—, E denotes hydrogen atom, a lower alkyl group or a phenyl group having 1 to 3 substituents such as hydroxyl group and amino group, n denotes 0 or 1, and m denotes 0 or 1, or a salt thereof, or a copper complex compound of either of them, which is used for a polarizing plate having excellent polarization performance and durability and furthermore little color leakage in visible light range.
Owner:NIPPON KAYAKU CO LTD +1
Ink jet ink, ink jet recording method, ink cartridge, recording unit, and ink jet recording apparatus
ActiveUS8029612B2Increased durabilityGood light fastnessMeasurement apparatus componentsDuplicating/marking methodsOrganic solventWater soluble
The present invention provides an ink jet ink, which gives a superior lightfastness to an ink image, has a superior sticking resistance and intermittent ejection stability, and gives a preferable color tone to the image. The ink includes an azo-based dye represented by formula (I) and a water-soluble organic solvent represented by bis(2-hydroxyethyl)sulfone represented by formula (II).
Owner:CANON KK
Azo compound, ink composition and colored article
ActiveUS7503967B2Good water solubilityHigh print densityMonoazo dyesOrganic chemistryHydrogen atomAlkoxy group
An azo compound represented by the following Formula (1) or a salt thereof, and an ink composition comprising the same(wherein, each of R1, R2, R5, R6 and R7 independently represents a hydrogen atom, a carboxyl group, a sulfo group and the like, each of R3 and R4 independently represents a hydrogen atom, a sulfo group, a nitro group, a (C1 to C4) alkyl group (which may be substituted by a hydroxyl group or a (C1 to C4) alkoxy group), a (C1 to C4) alkoxy group (which may be substituted by a hydroxyl group, a (C1 to C4) alkoxy group, a sulfo group or a carboxyl group) and the like, and n represents 0 or 1, respectively).
Owner:NIPPON KAYAKU CO LTD
Ink set, inkjet recording method and recorded material
An ink set including at least a yellow ink composition, a magenta ink composition and a cyan ink composition, wherein the yellow ink composition contains, as the yellow colorant, at least one member selected from the group consisting of a compound represented by a specific structure and a salt thereof, each of the yellow colorant, the magenta colorant and the cyan colorant contained in the yellow ink composition, the magenta ink composition and the cyan ink composition, respectively, has at least one ionic hydrophilic group, the counter ion of the ionic hydrophilic group contains a lithium ion, and the lithium ion concentration is 70 mol % or more based on all cations in each ink composition.
Owner:FUJIFILM CORP
Ink set, ink cartridge, inkjet recording method, and recorded matter
An ink set containing at least a yellow ink composition, a magenta ink composition, and a cyan ink composition:said magenta ink composition containing as a colorant at least one type of compound expressed by the formula M-1 in claim 1, and at least one type of compound expressed by the following formula M-2 in claim 1, the yellow ink composition containing as a colorant at least one type of compound expressed by the formula Y-1 in claim 1; andthe cyan ink composition containing as a colorant at least one type of compound selected from the group consisting of compounds or salts thereof expressed by the Formula C-1 in claim 1.
Owner:SEIKO EPSON CORP
Azo Compound, Ink Composition and Colored Article
ActiveUS20080193660A1Good water solubilityHigh print densityMonoazo dyesOrganic chemistrySolubilityHydrogen atom
[Problems] A compound of a black ink which has such excellent fastnesses of a recorded article as light fastness, ozone gas fastness and moisture fastness, excellent solubility, and storage stability as a recording liquid, when used for inkjet recording and writing tools, and an ink composition comprising the same are provided.[Method for solving the problems] An azo compound represented by the following Formula (1) or a salt thereof, and an ink composition comprising the same(wherein, each of R1, R2, R5, R6 and R7 independently represents a hydrogen atom, a carboxyl group, a sulfo group and the like, each of R3 and R4 independently represents a hydrogen atom, a sulfo group, a nitro group, a (C1 to C4) alkyl group (which may be substituted by a hydroxyl group or a (C1 to C4) alkoxy group), a (C1 to C4) alkoxy group (which may be substituted by a hydroxyl group, a (C1 to C4) alkoxy group, a sulfo group or a carboxyl group) and the like, and n represents 0 or 1, respectively).
Owner:NIPPON KAYAKU CO LTD
Ink jet black ink, ink set, ink jet recording method, ink cartridge, recording unit, and ink jet recording apparatus
InactiveUS20060119684A1High fastnessImprove image qualityMeasurement apparatus componentsDuplicating/marking methodsImaging qualityEngineering
An object of the present invention is to provide an ink jet black ink by which an image quality comparable to that of a silver halide photograph is obtained with a compatibility between a high fastness and a high image quality when the ink is printed on a recording medium, and which is excellent in optical density and color tone particularly in half tone, and is also excellent in gas resistance. The present invention provides an ink jet black ink comprising a dye and a black pigment, wherein the dye is at least one kind selected from the group consisting of compounds represented by the following formula (I) or salts thereof, and compounds represented by the following formula (II) or salts thereof.
Owner:CANON KK
Trisazo Compound, Ink Composition, Recording Method, and Colored Article
ActiveUS20090062545A1Good water solubilityGood storage stabilityMonoazo dyesOrganic chemistrySolubilityWater based
The present invention relates to a trisazo compound represented by the following formula (1) or a salt thereof,The formula (1)(wherein, the group A is a substituted phenyl group, the group B and the group C are substituted para-phenylene groups, R1 represents a C1 to C4 alkyl group (which may be substituted by a carboxy group), a phenyl group (which may be substituted by a sulfo group), or a carboxy group,R2 represents a cyano group, a carbamoyl group or a carboxy group, each of R3 and R4 independently represents a hydrogen atom, a methyl group, a chlorine atom or a sulfo group, respectively) and a water-based black ink composition containing said compound; said compound has high solubility in a medium where the main component is water, its aqueous solution having a high concentration and ink are stable when stored for a long period of time, black-recorded images with it can be provided where both light fastness and ozone gas fastness of the printed images are excellent.
Owner:NIPPON KAYAKU CO LTD
Ink jet ink, ink jet recording method, ink cartridge, recording unit, and ink jet recording apparatus
ActiveUS20090238976A1Increased durabilityGood light fastnessMeasurement apparatus componentsDuplicating/marking methodsOrganic solventHue
The present invention provides an ink jet ink, which gives a superior lightfastness to an ink image, has a superior sticking resistance and intermittent ejection stability, and gives a preferable color tone to the image. The ink includes an azo-based dye represented by formula (I) and a water-soluble organic solvent represented by bis(2-hydroxyethyl)sulfone represented by formula (II).
Owner:CANON KK
Black Ink Composition, Ink Set Containing the Same, and Ink Jet Recording Method
InactiveUS20070240608A1High densityIncrease contentMeasurement apparatus componentsDuplicating/marking methodsWater solubleShort Waves
A black ink composition is provided and contains at least two coloring materials, water and additives, wherein the coloring material on the short wave side of the two coloring materials is a water-soluble dye having 3 or more azo groups in one molecule and a naphthalene skeleton, and the additives are selected from the group consisting of a bronzing inhibitor and an ozone resisting improver.
Owner:FUJIFILM CORP
Dye-based polarizing element and polarizing plate
ActiveCN103547949ANot easy to fadeImprove dyeing effectPolarising elementsTetrazo dyesHydrogen atomPolyvinyl alcohol
[Problem] To develop a polarizing element having high durability and having favorable polarization properties without using a starting material belonging to a specific chemical substance such as a dianisidine. [Solution] The polarizing element, which contains dichroic pigments and comprises a film of a stretched polyvinylalcohol resin or a derivative thereof, is characterized by at least one of the dichroic pigments being the azo compound represented by formula (1) or a salt thereof. (In the formula: A indicates a benzene ring or a naphthyl group that is unsubstituted or has at least one substituent group selected from the group consisting of a sulfo group, an alkyl group, an alkoxy group, an alkoxyl group having a sulfo group, a carboxy group, a nitro group, an amino group, and a substituted amino group; R1, R2, R3, and R4 each independently indicate a hydrogen atom, an alkyl group, an alkoxy group, a sulfo group, or an alkoxy group having a sulfo group.)
Owner:NIPPON KAYAKU CO LTD
Water-base black ink composition and colored product
The present invention relates to a water-based black ink composition comprising a water-soluble black dye (A) exhibiting ozone fastness and a condensate compound (B) of 4,4′-dinitrostilbene-2,2′-disulfonic acid and aminobenzenes or a reduction product (C) thereof. Said ink composition is suitable for use in ink-jet recording, and realizes neutral hue and black color of high printing density. Further, a printed matter obtained is excellent in ozone gas fastness, light fastness, moisture fastness and color rendering properties. Still further, storage stability as a recording liquid is excellent.
Owner:NIPPON KAYAKU CO LTD
Coloring composition and inkjet recording method
ActiveUS7250079B2Good black color hueHigh fastnessMonoazo dyesDisazo dyesBisazomethine dyeWater soluble
The invention provides a water-soluble ink capable of forming an image having good color hue and high fastness in various use and environmental conditions, which comprises a coloring composition comprising a disazo dye represented by the following formula 1: A1-N═N-A2-N═N-A3 and at least one other dye having a specific structure; in formula 1, A1, A2 and A3 each independently represents an aromatic group which may be substituted or a heterocyclic group which may be substituted, and A1 and A3 each is a monovalent group and A2 is a divalent group.
Owner:FUJIFILM CORP
Trisazo compound, ink composition, recording method, and colored article
ActiveUS8167991B2Good water solubilityGood storage stabilityMonoazo dyesOrganic chemistryHigh concentrationSolubility
Owner:NIPPON KAYAKU CO LTD
Azo compound, ink composition, and colored object
ActiveUS7427319B2Improve solubilityGood storage stabilityMonoazo dyesOrganic chemistryHydrogen atomAlkoxy group
The present invention relates to an azo compound represented by the following formula (1):(wherein, in the formula (1), R1 represents a hydrogen atom; a hydroxyl group; a carboxyl group; a (C1-C4)alkyl group which may be substituted by a hydroxyl group or a (C1-C4)alkoxy group; or the like, and A represents an aliphatic amine residue having a carboxyl group or a sulfo group, respectively;) or a salt thereof; an ink composition containing the same; and an inkjet recording method and a colored object using the same. Said azo compound has a high color value and has a hue between yellow and red or a brown hue. The ink containing said azo compound has satisfactory storage stability, and exhibits, when printed therewith, a stable ejection property even on a thermal type inkjet printer, and gives a print of high quality (superior in light fastness, ozone gas fastness and moisture fastness).
Owner:NIPPON KAYAKU CO LTD
Azo Compound, Ink Composition, and Colored Object
ActiveUS20070257975A1Improve solubilityStable ejection propertyMonoazo dyesOrganic chemistryHydrogen atomAlkoxy group
The present invention relates to an azo compound represented by the following formula (1): (wherein, in the formula (1), R1 represents a hydrogen atom; a hydroxyl group; a carboxyl group; a (C1-C4)alkyl group which may be substituted by a hydroxyl group or a (C1-C4)alkoxy group; or the like, and A represents an aliphatic amine residue having a carboxyl group or a sulfo group, respectively;) or a salt thereof; an ink composition containing the same; and an inkjet recording method and a colored object using the same. Said azo compound has a high color value and has a hue between yellow and red or a brown hue. The ink containing said azo compound has satisfactory storage stability, and exhibits, when printed therewith, a stable ejection property even on a thermal type inkjet printer, and gives a print of high quality (superior in light fastness, ozone gas fastness and moisture fastness).
Owner:NIPPON KAYAKU CO LTD
Black ink composition, ink set, ink cartridge, inkjet recording method and recorded product
InactiveUS20070263056A1Guaranteed fastnessImprove printing qualityDisazo dyesMeasurement apparatus componentsPolymer scienceColoring agents
Owner:SEIKO EPSON CORP
Ink composition, inkjet recording method and colored body
ActiveUS20130257974A1Satisfactory storage stabilityHigh print densityOther printing matterInksColor saturationImage density
An aqueous black ink composition that produces a black recorded image that is stable even when stored for a long time period, exhibits a neutral black to gray color with low color saturation and no tinge, has a high printed image density and exhibits excellent fastness properties of the recorded image, particularly ozone-gas resistance. The ink composition contain at least one kind of coloring matter (I), which a coloring matter represented by formula (1) below, a tautomer thereof, or a salt of the coloring matter or the tautomer; at least one kind of coloring matter (II), which is a coloring matter represented by formula (2) below or a salt thereof; and coloring matter (III), which is a coloring matter having an azo group other than coloring matters (I) and (II), or a salt thereof.
Owner:NIPPON KAYAKU CO LTD
Azo compound and salt thereof, and dye-containing polarizing film comprising the compound or salt
InactiveUS20090126127A1Improve performanceIncrease resistanceMonoazo dyesDisazo dyesHydrogen atomAlkoxy group
Disclosed is an azo compound represented by the general formula (1) or a salt thereof:wherein R1 and R2 independently represent a hydrogen atom, a lower alkyl group or a lower alkoxy group; and n represents 1 or 2. Also disclosed are a dye-containing polarizing film and a dye-containing polarizing plate, each of which comprises a polarizing film base material and the azo compound contained in the base material.
Owner:NIPPON KAYAKU CO LTD +1
Black ink composition, ink set containing the same, and ink jet recording method
InactiveUS7708820B2Increase contentMeasurement apparatus componentsDuplicating/marking methodsWater solubleShort Waves
A black ink composition is provided and contains at least two coloring materials, water and additives, wherein the coloring material on the short wave side of the two coloring materials is a water-soluble dye having 3 or more azo groups in one molecule and a naphthalene skeleton, and the additives are selected from the group consisting of a bronzing inhibitor and an ozone resisting improver.
Owner:FUJIFILM CORP
Inkjet recording ink
The present invention provides an inkjet recording ink comprising a dye represented by formula (1) below having a weight-average molecular weight of 850 or less, a water-soluble organic solvent represented by general formula (2) or (3) having an SP value of 9.4 or higher and less than 9.75, and water, the content of a surfactant being less than 0.1 mass%. R1, R2: H, halogen atom, OH, COOH, C1-C6 alkyl group, C1-C6 alkoxy group, NO2, azophenyl group; -L1-Ra and the like, L1: O, CH2, C6H4, N=N, SO2 or a combination thereof;Ra:phenyl group, naphthyl group; R3: H, azophenyl group, azonaphtalene group; -L2-Rb and the like, L2: C(=O), C6H4, N=N, NH, SO2 or a combination thereof; Rb: phenyl group, naphthyl group, pyrimidyl group, or the like; M: H, Na, NH4, alkyl ammonium or the like; R: C2-C6 unsubstituted alkyl group; n = 1 to 3.
Owner:FUJIFILM CORP
Azo Compound, Ink Composition, Recording Method and Colored Article
InactiveUS20090136720A1Good water solubilityImprove stabilityLayered productsDecorative surface effectsHalogenHydrogen atom
The present invention relates to an azo compound represented by the following formula (1)(wherein, each of R1 and R2 independently represents a hydrogen atom, a halogen atom, a cyano group, a carboxy group, a sulfo group, a sulfamoyl group, an N-alkylaminosulfonyl group, an N-phenylaminosulfonyl group and the like; each of R3, R4, R5, R6, R7 and R8 independently represents a hydrogen atom, a halogen atom, a hydroxy group, a cyano group, a carboxy group, a sulfo group, a sulfamoyl group, an N-alkylaminosulfonyl group, an N-phenylaminosulfonyl group and the like; and n represents 0 or 1, respectively)or a salt thereof, an ink composition containing the same, a recording method and a colored article; the ink composition containing said azo compound has superior storage stability for a long period of time; and articles recorded with said ink composition has superior light fastness and ozone gas fastness.
Owner:NIPPON KAYAKU CO LTD
Dye-Based Polarizing Element And Polarizing Plate
To develop a polarizing element having a good, polarizing property, and also having a high durability without use of a raw material belonging to a specified, chemical substance such as dianisidine.Provided is a polarizing element that comprises a film of a polyvinyl alcohol resin or a derivative thereof containing dichromatic pigments, and having been stretched, in which at least one of the dichromatic pigments is an azo compound represented by Formula (1) or a salt thereof.(wherein, A represents a naphtyl group or a benzene ring that is unsubstituted, or has one or more of substituents selected from a group consisting of a sulfo group, an alkyl group, an alkoxy group, an alkoxy group having a sulfo group, a carboxy group, a nitro group, an amino group, and a substituted amino group; and, R1, R2, R3 and R4 each independently represent a hydrogen atom, an alkyl group, an alkoxy group, a sulfo group, or an alkoxy group having a sulfo group,)
Owner:NIPPON KAYAKU CO LTD +1
Azo compound, ink composition, recording method, and colored object
InactiveCN101248141AGood water solubilityGood storage stabilityDuplicating/marking methodsInksHydrogenPhotochemistry
Owner:NIPPON KAYAKU CO LTD
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