Plural Acyclic Azo Group Component Containing Patents (Class 106/31.52)
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Patent number: 7749315Abstract: Disclosed is a phase change ink composition comprising a phase change ink carrier and a compound of the formula and dimers thereof, wherein R, R2, X and Z are as described herein.Type: GrantFiled: April 4, 2007Date of Patent: July 6, 2010Assignee: Xerox CorporationInventors: Jeffrey H. Banning, Rina Carlini, James D. Mayo
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Patent number: 7740695Abstract: 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; and the 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.Type: GrantFiled: September 28, 2007Date of Patent: June 22, 2010Assignee: Seiko Epson CorporationInventors: Kazuhiko Kitamura, Akihito Sao, Hiroshi Fukumoto
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Patent number: 7736427Abstract: An inkset comprising at least a yellow ink composition, two types of magenta ink compositions of different color density, and a cyan ink composition: the magenta ink composition containing as a colorant at least one type of compound expressed by the formula M-1, and at least one type of compound expressed by the formula M-2, the yellow ink composition containing as a colorant at least one type of compound expressed by the formula Y-1 the cyan ink composition containing as a cyan dye at least one type of compound selected from the compounds or salt thereof expressed by the formula C-1.Type: GrantFiled: December 13, 2007Date of Patent: June 15, 2010Assignee: Seiko Epson CorporationInventors: Kazuhiko Kitamura, Akihito Sao, Hiroshi Fukumoto
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Patent number: 7731788Abstract: An ink set including at least a yellow ink composition, a magenta ink composition, and a cyan ink composition; the magenta ink composition containing as a colorant at least one type of compound expressed by the Formula M-1 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; and the 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.Type: GrantFiled: September 28, 2007Date of Patent: June 8, 2010Assignee: Seiko Epson CorporationInventors: Kazuhiko Kitamura, Akihito Sao, Hiroshi Fukumoto
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Patent number: 7708820Abstract: 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.Type: GrantFiled: July 12, 2005Date of Patent: May 4, 2010Assignee: FUJIFILM CorporationInventor: Manabu Ogawa
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Patent number: 7704311Abstract: An ink composition, which comprises at least two kinds of water-soluble dyes, wherein at least one of the at least two kinds of water-soluble dyes is a compound selected from the group consisting of a compound represented by formula (S-1), which is described in the specification, and a salt of the compound represented by formula (S-1) and at least one of the at least two kinds of water-soluble dyes is a compound represented by formula (L-1), which is described in the specification, or a compound having a naphthalene ring substituted with at least one hydroxyl group and three or more azo groups.Type: GrantFiled: October 20, 2006Date of Patent: April 27, 2010Assignee: FUJIFILM CorporationInventor: Kaoru Tojo
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Patent number: 7641724Abstract: Dye mixtures comprising at least one dye of formula (I) together with at least one dye of formula (II) wherein the radicals are as defined in the claim, are suitable for dyeing or printing cellulosic fiber materials, while having a good build-up behavior, and yield dyeings of a deep shade having good fastness properties.Type: GrantFiled: November 8, 2004Date of Patent: January 5, 2010Assignee: Huntsman International LLCInventors: Athanassios Tzikas, Georg Roentgen
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Patent number: 7638610Abstract: A self-dispersible metal complex colorant is represented by formula 1, which has improved storage stability, may embody various colors and has improved fastness, such as light resistance, water resistance and the like: wherein each of A1 and A2 is independently a moiety which includes a substituted or unsubstituted C2-C30 alkenylene group having at least one double bond and is conjugated with an azo group; each of X1 and X2 is selected from the group consisting of a hydroxy group, a C1-C4 alkoxy group, a carboxyl group, and a substituted or unsubstituted amino group; M is a polyvalent transition metal; L is a neutral or anionic ligand; T is a mono- or poly-substituted hydrophilic functional group; n is an integer between 1 and 3; and J is a linker. The self-dispersible metal complex colorant may be used in various fields employing colors, such as fibers, foods, drugs, cosmetics, coatings, inks or ceramics.Type: GrantFiled: August 6, 2004Date of Patent: December 29, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Kyung-hoon Lee, Seung-min Ryu, Yeon-kyoung Jung
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Patent number: 7621992Abstract: An ink composition having a high optical density, can implement a clear color image and improve the durability of printed images, such as waterproofness, lightfastness, gasfastness, environmental resistance, etc., having excellent storage stability, and does not cause clogging of nozzles of a cartridge of an inkjet printer even after being stored for a long-term. An inkjet printer cartridge including the ink composition, and an inkjet recording apparatus including the cartridge.Type: GrantFiled: April 21, 2006Date of Patent: November 24, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Seung-min Ryu, Yeon-kyoung Jung
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Publication number: 20090269553Abstract: Compounds of the general formula (I) a process for their preparation and their use for dyeing and/or printing organic substrates.Type: ApplicationFiled: April 2, 2007Publication date: October 29, 2009Applicant: Clariant Finance (BVI) LimitedInventor: Rainer Nusser
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Publication number: 20090263630Abstract: The present invention relates to novel 1:2 chromium complex dyes, processes for their preparation and their use for dyeing or printing fibre materials containing hydroxyl groups or containing nitrogen. The present invention relates to a 1:2 chromium complex dye of formula (I) wherein all substituents are as defined in the claims, a process for their preparation and their use for dyeing or printing fiber materials containing hydroxyl groups or containing nitrogen.Type: ApplicationFiled: July 17, 2006Publication date: October 22, 2009Inventor: Rainer Nusser
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Patent number: 7582150Abstract: A pigment dispersion comprising a color pigment represented by formula (I) wherein, R1 is selected from the group consisting of hydrogen, a halogen atom, a methyl group, an ethyl group, a methoxy group, an ethoxy group, —CF3, —COOH, —COOCH3 and R2, R4 and R5 are independently selected from the group consisting of hydrogen, a halogen atom, a methyl group, an ethyl group, a methoxy group, an ethoxy group, —CF3, —COOH and —COOCH3; R3 is selected from the group consisting of hydrogen, a halogen atom, a methyl group, an ethyl group, a methoxy group, an ethoxy group, —CF3, —COOH, —COOCH3, —SO2NH—C6H5, —CONH—C6H5, —CONH—C6H5—CONH2 and —CONH2; R6 and R7 are independently selected from the group consisting of hydrogen, a halogen atom, a methyl group, an ethyl group, a methoxy group, an ethoxy group, —CF3, —COOH and —COOCH3, or R6 and R7 represent the necessary atoms to form an imidazolone ring; and a polymeric dispersant having via a linking group covalently linked to its polymeric backbone at least one penType: GrantFiled: June 23, 2006Date of Patent: September 1, 2009Assignee: Agfa Graphics NVInventors: Wojciech Jaunky, Geert Deroover, Johan Loccufier, Lambertus Groenendaal
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Patent number: 7582151Abstract: 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 consisting of hydrogen, a halogen atom, a methyl group, an ethyl group, a methoxy group, and an ethoxy group; and a polymeric dispersant, having via a linking group covalently linked to its polymeric backbone, at least one pending chromophore group which has a molecular weight smaller than 90% of the molecular weight of the color pigment; wherein the at least one pending chromophore group is a chromophore group occurring as a side group on the polymeric backbone and not a group in the polymeric backbone itself or occurring solely as an end group of the polymeric backbone; and the at least one pending chromophore group is represented by formula (II): wherein, one of L1, L2 or L3 is the linking group and is selected from the group consisting of an aliphatic group, aType: GrantFiled: June 23, 2006Date of Patent: September 1, 2009Assignee: Agfa Graphics NVInventors: Wojciech Jaunky, Geert Deroover, Johan Loccufier, Lambertus Groenendaal
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Patent number: 7582152Abstract: A pigment dispersion includes a color pigment represented by formula (I): wherein R1 to R10 are independently selected from the group consisting of hydrogen, a halogen atom, a methyl group, an ethyl group, a methoxy group, an ethoxy group, —CF3, —COOH, —COOCH3, —SO2NH—C6H5, —CONH—C6H5, —CONH—C6H5—CONH2, and —CONH2; and a polymeric dispersant, having via a linking group covalently linked to its polymeric backbone, at least one pending chromophore group which has a molecular weight smaller than 95% of the molecular weight of said color pigment. The pigment dispersion can be advantageously used in inkjet inks.Type: GrantFiled: June 23, 2006Date of Patent: September 1, 2009Assignee: Agfa Graphics NVInventors: Wojciech Jaunky, Geert Deroover, Johan Loccufier, Lambertus Groenendaal
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Publication number: 20090208713Abstract: A compound selected from the group consisting of compounds of Formula (1) and compounds of Formula (2) or a salt thereof: wherein: A is an optionally substituted alpha naphthyl group of formula X, wherein * is the point of attachment to the azo group in Formula (1) or (2); B is optionally substituted phenylene or naphthylene; n is 0 or 1; and D is an optionally substituted pyrazolyl group. The compound is useful in an ink for ink jet printing. Also provided are printing processes, ink compositions and ink-jet cartridges for use in an ink-jet printer and substrates printed using an ink-jet printer.Type: ApplicationFiled: April 27, 2007Publication date: August 20, 2009Inventors: Prahalad Manibhai Mistry, Roy Bradbury, Lynn Patricia Bradbury
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Publication number: 20090196995Abstract: A yellow ink composition includes C.I. Pigment Yellow and C.I. Pigment Yellow 74 as coloring agents. The ratio of a C.I. Pigment Yellow 185 content (percent by weight) to a C.I. Pigment Yellow 74 content (percent by weight) is in the range of 0.5 to 15. The yellow ink composition has a C.I. Pigment Yellow 185 content of 10% to 20% by weight and a C.I. Pigment Yellow 74 content of 10% to 20% by weight.Type: ApplicationFiled: January 29, 2009Publication date: August 6, 2009Applicant: Seiko Epson CorporationInventors: Chie Saito, Miharu Kanaya, Kiyohiko Takemoto
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Patent number: 7553359Abstract: The present invention concerns concentrated aqueous solutions of anionic disazo dyes, comprising salts and or the free acids of anionic dyes of the formula and 2-(2-butoxyethoxy) ethanol wherein the substituents are each as defined in claim 1 and the use of these solutions for dyeing and/or printing hydroxyl-containing substrates and for producing inkjet inks.Type: GrantFiled: May 12, 2005Date of Patent: June 30, 2009Assignee: Clariant Finance (BVI) LimitedInventors: Jordi Berenguer, Ludwig Hasemann, Joan Bosch, Susana Basolas
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Publication number: 20090148602Abstract: An ink composition, which comprises at least two kinds of water-soluble dyes, wherein at least one of the at least two kinds of water-soluble dyes is a compound selected from the group consisting of a compound represented by formula (S-1), which is described in the specification, and a salt of the compound represented by formula (S-1) and at least one of the at least two kinds of water-soluble dyes is a compound represented by formula (L-1), which is described in the specification, or a compound having a naphthalene ring substituted with at least one hydroxyl group and three or more azo groups.Type: ApplicationFiled: October 20, 2006Publication date: June 11, 2009Applicant: FUJIFILM CORPORATIONInventor: Kaoru Tojo
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Patent number: 7537651Abstract: An ink composition including an azo-based colorant and an ink set using the same. More particularly, an ink composition which uses a lithium salt and a derivative including hydroxynaphthalene of a chromophore as colorants, and includes etriol and an acetylene glycol-based compound, and an ink set using the same.Type: GrantFiled: April 10, 2007Date of Patent: May 26, 2009Assignee: Samsung Electronics Co., LtdInventors: Heung-sup Park, Hee-jung Roh
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Patent number: 7527684Abstract: An ink set comprising a yellow ink containing at least one yellow dye, a magenta ink containing at least one magenta dye, a cyan ink containing at least one cyan dye and a black ink containing at least two kinds of dyes as a minimum constituent element, in which an oxidation potential for each of the yellow dye, the magenta dye and the cyan dye is more electropositive than 0.8 V (vs SCE) and/or each of the inks is an azo dye containing at least one heterocyclic ring in a molecule or a phthalocyanine dye containing at least one heterocyclic ring in a molecule, and the black ink contains a water soluble long wavelength dye L and a water soluble short wavelength dye S having three or more azo groups in one molecule and having a naphthalene skeleton, and a ink jet recording method utilizing the ink set.Type: GrantFiled: July 11, 2005Date of Patent: May 5, 2009Assignee: FUJIFILM CorporationInventor: Naotaka Wachi
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Patent number: 7524368Abstract: The present invention relates to a black dye composition, comprising: (a) at least one azo dye of the following formula (I), (b) at least one azo dye of the following formula (II) or (III), wherein R1, R2, and R3 are defined the same as the specification. The present invention also relates to a black ink composition afforded from the aforementioned black dye composition. The black ink composition of the present invention for textile digital printing exhibits the properties of excellent color depth, fixation, stability of storage, stability and accuracy of printing for long time, and improves the issue of nozzle cloggage.Type: GrantFiled: September 10, 2007Date of Patent: April 28, 2009Assignee: Everlight USA, Inc.Inventors: Chuan-Hsi Lee, Tzu-Kwei Sun, Reng-Fang Lin, Hsiao-San Chen
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Patent number: 7520928Abstract: Black ink compositions are provided. First embodiment contains a water-soluble long-wavelength dye L and a water-soluble short-wavelength dye S, in which the water-soluble short-wavelength dye S has 3 or more azo groups per molecule and a naphthalene skeleton. Second embodiment contains a water-soluble short-wavelength dye S whose absorption spectrum in aqueous solvent has a maximum between 440 nm and 540 nm and a half-band width of 90 to 200 nm and a water-soluble long-wavelength dye L whose absorption spectrum in aqueous solvent has a maximum between 550 nm and 700 nm and a half-band width of 100 nm or more. Third embodiment contains water, a water-miscible organic solvent, and a coloring material, in which C. I. Direct Red 84 is contained as a water-soluble short-wavelength dye S.Type: GrantFiled: July 12, 2005Date of Patent: April 21, 2009Assignee: FUJIFILM CorporationInventors: Kenji Ikeda, Toshiharu Tanaka
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Patent number: 7510605Abstract: To provide a dye which has a good hue, which can form an image showing a high fastness under various using conditions and environmental conditions, and which is particularly suited for an ink, the dye is represents by formula (1): wherein R1 and R2 each independently represents a monovalent group, Z represents a nitrogen atom or a carbon atom to which a hydrogen atom or a monovalent group is bonded, and M represents a hydrogen atom or a cation, provided that the dye has two azo groups.Type: GrantFiled: February 3, 2005Date of Patent: March 31, 2009Assignee: Fujifilm CorporationInventors: Toru Harada, Yoshiharu Yabuki, Takashi Ozawa, Keiichi Tateishi
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Patent number: 7503966Abstract: A black ink composition comprises a water soluble dye containing a single compound showing an absorption maximum at 440 to 540 nm with a half-value width of 90 nm to 200 nm for a visible region absorption spectrum in water.Type: GrantFiled: June 7, 2005Date of Patent: March 17, 2009Assignee: Fujifilm CorporationInventors: Yoshiharu Yabuki, Naotaka Wachi, Kaoru Tojo, Naoyuki Hanaki
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Patent number: 7503967Abstract: 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).Type: GrantFiled: November 10, 2005Date of Patent: March 17, 2009Assignee: Nippon Kayaku Kabushiki KaishaInventors: Takahiko Matsui, Hiroaki Ohno, Yasuo Shirasaki
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Patent number: 7491266Abstract: To provide an inkjet black ink having excellent image durability and ink discharge properties and an ink set, the inkjet black ink, which contains a dye having a ?max of from 500 nm to 700 nm and a half-band width of 100 nm or more in an absorption spectrum of a diluted solution standardized at an absorbance of 1.0 at the ?max, has the change ratio of absorbance at the ?max in the visible region, specified in the specification; and the inkjet ink set containing at least two black inks having different densities has the relationship among the at least two black inks, specified in the specification.Type: GrantFiled: November 4, 2004Date of Patent: February 17, 2009Assignee: FUJIFILM CorporationInventors: Toshiki Taguchi, Naotaka Wachi, Manabu Ogawa
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Publication number: 20090041939Abstract: A compound selected from the group consisting of compounds of Formula (1) and compounds of Formula (2) or a salt thereof: wherein: A is a beta naphthyl group of formula X, wherein * is the point of attachment to the azo group in Formula (1) or (2) p and q are each independently 0, 1 or 2 and the sum of p+q is not zero; B is optionally substituted phenylene or naphthylene; n is 0 or 1; and D is an optionally substituted pyrazolyl group. The compound or salt is useful in an ink for ink jet printing. Also provided are printing processes, ink compositions and ink-jet cartridges for use in an ink-jet printer and substrates printed using an ink-jet printer.Type: ApplicationFiled: April 27, 2007Publication date: February 12, 2009Inventor: Prahalad Manibhai Mistry
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Patent number: 7481875Abstract: An inkjet ink includes an aqueous liquid vehicle, at least 1% by weight dye, and an ozone stability enhancing quantity of gluconate ions.Type: GrantFiled: January 3, 2007Date of Patent: January 27, 2009Assignee: Hewlett-Packard Development Company, L.P.Inventor: Larrie Deardurff
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Patent number: 7465344Abstract: An aqueous ink for ink jet recording, which comprises: at least one dye; and at least one of a compound having at least one phosphonic acid group and at least one carboxyl group and a compound having at least two phosphonic acid groups as a print density improver(s), a print density improver, and a method for enhancing print density involving the use of the aforementioned print density improver.Type: GrantFiled: March 30, 2006Date of Patent: December 16, 2008Assignee: Fujifilm CorporationInventors: Tomohiro Chino, Takashi Ozawa
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Patent number: 7465346Abstract: A black ink composition comprising a colorant represented by Formula 1 below same as claim 1 and a colorant represented by Formula 2 below same as claim 1.Type: GrantFiled: May 11, 2007Date of Patent: December 16, 2008Assignee: Seiko Epson CorporationInventors: Hiroshi Fukumoto, Kazuhiko Kitamura
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Patent number: 7462228Abstract: 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.Type: GrantFiled: March 4, 2004Date of Patent: December 9, 2008Assignee: Nippon Kayaku Kabushiki KaishaInventors: Hiroaki Ohno, Toru Yamaguchi, Takahiko Matsui, Takashi Yoneda, Yoshiaki Kawaida, Yasuo Shirasaki, Kazunobu Nagasaki
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Publication number: 20080295732Abstract: The present invention relates to dye mixtures which comprise at least one dye of the formula (I), at least one dye of the formula (II) and optionally at least one dye of the formula (III) and/or optionally at least one dye of the formula (IV) in which D1 to D7, R201 to R203, R0, R* and R**, T, M, v and f are as defined in claim 1, to dyes of the formula (II), to processes for their preparation, and to their use for dyeing and printing hydroxyl- and carboxamido-containing materials.Type: ApplicationFiled: September 29, 2006Publication date: December 4, 2008Applicant: DyStar Textilfarben GmbH &Co. Deutschland KGInventors: Joachim Eichhorn, Stefan Meier, Werner Hubert Russ
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Publication number: 20080280052Abstract: An ink-jet printing process for printing textile fibre materials, wherein the fiber materials are printed with an aqueous ink comprising (I) at least one anionic acid dye, and (II) dipropylene glycol, said ink having a viscosity of from 5 to 20 mPa s at 25° C., and wherein the said ink is applied to the fiber material with an ink-jet print head comprising an ink supply layer (b) receiving ink from an external ink reservoir, said ink supply layer having a first side and a second side and comprising, a porous medium having a plurality of pores therein and a plurality of holes extending therethrough, so as to allow passage of the ink allows for high speed printing and yields prints with good fastness properties.Type: ApplicationFiled: October 6, 2004Publication date: November 13, 2008Inventor: Roger Lacroix
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Publication number: 20080274287Abstract: Reactive dye mixtures which comprise one or more dyes of the indicated general formula (I) and one or more dyes of the hereinbelow indicated and defined general formula (II) where D1, D2, D3, R0, R*, R**, T, b, f, v and M are each as defined in claim 1, the dyes of the general formulae (I) and (II) containing at least one fiber-reactive group of the formula —SO2-Z or -Z2, their preparation and their use for dyeing and printing hydroxyl- and/or carboxamido-containing fiber material.Type: ApplicationFiled: May 27, 2008Publication date: November 6, 2008Applicant: DyStar Textilfarben GmbH & Co. Deutschland KGInventors: Stefan Meier, Werner Russ, Joachim Eichhorn
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Patent number: 7446184Abstract: A compound of Formula (1) and salts thereof: wherein: Q is an optionally substituted aryl ring; Y is CO2H, SO3H or PO3H2; R and X are substituents; m is 0 to 3; n is 0 to 6; and q is 0 to 6. Also compositions comprising these compounds, ink-jet inks, an ink jet process and an ink-jet cartridge.Type: GrantFiled: December 6, 2004Date of Patent: November 4, 2008Assignee: Fujifilm Imaging Colorants LimitedInventors: Clive Edwin Foster, David Schofield, Julie Ann Downey, Neil Burnham, Philip John Double, Roy Bradbury
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Patent number: 7438753Abstract: The present invention relates to a diazo dyestuff compound of the following formula (I) wherein, M is H, Na, or Li. The formula (I) compound is particularly suitable for using as a component in a black dye composition for ink-jet printing ink, and inkjet printing inks with good light-fastness are obtained.Type: GrantFiled: June 15, 2006Date of Patent: October 21, 2008Assignee: Everlight USA, Inc.Inventors: Jen-Fang Lin, Tzu-Kwei Sun, Hsiao-San Chen, Wen-Chin Lin
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Publication number: 20080245264Abstract: Disclosed is a phase change ink composition comprising a phase change ink carrier and a compound of the formula and dimers thereof, wherein R, R2, X and Z are as described herein.Type: ApplicationFiled: April 4, 2007Publication date: October 9, 2008Inventors: Jeffrey H. Banning, Rina Carlini, James D. Mayo
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Patent number: 7431760Abstract: An ink containing an azo dye having, in total, at least 13 conjugated ? electrons in an aromatic ring thereof that is not directly bonded to any azo group.Type: GrantFiled: June 7, 2004Date of Patent: October 7, 2008Assignee: Fujifilm CorporationInventors: Tomohiro Chino, Toshiki Fujiwara, Masaru Takasaki
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Patent number: 7402201Abstract: To provide an ink stock solution excellent in handleability, a method for producing the same, an ink composition using the ink stock solution, particularly suitable for an ink for inkjet recording, and a method for producing the same, the ink stock solution includes a dye and a viscosity reducing agent, wherein the ink stock solution has a solid concentration of the dye of 7% or more by weight; the method for producing the ink stock solution includes adding a dye to a water and dissolving the dye in the water, and then, adding a viscosity reducing agent to control the viscosity; the method for producing the ink stock solution includes dissolving a dye, a water and a viscosity reducing agent all together; and the ink composition includes the ink stock solution and has a viscosity of 1 to 30 mPa·s.Type: GrantFiled: March 22, 2005Date of Patent: July 22, 2008Assignee: FUJIFILM CorporationInventors: Naotaka Wachi, Takashi Ozawa, Toshiki Fujiwara, Keiichi Tateishi
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Patent number: 7387668Abstract: An azo compound which is reduced in the copper ion content and exhibits hue and clarity suitable for ink-jet recording and which can give records having excellent light fastness, water resistance, and moisture proofness, and such ozone resistance as to control the fading and the discoloration; and water-base yellow inks containing the same.Type: GrantFiled: September 29, 2004Date of Patent: June 17, 2008Assignee: Nippon Kayaku Kabushiki KaishaInventors: Hirokazu Kitayama, Yasuo Shirasaki, Takahiko Matsui, Hiroaki Ohno
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Patent number: 7387667Abstract: The present invention relates to a black dye composition, comprising: (a) a compound of the following formula (I), (b) a compound of the following formula (II), (c) a compound of the following formula (III), wherein R1, R2, R3, and R4 are defined the same as the specification. The present invention also relates to a black ink composition afforded from the aforementioned black dye composition. The black ink composition of the present invention is suitable for paper ink-jet printing, and exhibits the properties of good light-fastness, high color strength, solubility, and fine fluency of ink.Type: GrantFiled: September 13, 2007Date of Patent: June 17, 2008Assignee: Everlight USA, Inc.Inventors: Wen-Chin Lin, Tzu-Kwei Sun, Reng-Fang Lin
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Patent number: 7364597Abstract: A metal complex colorant represented by formula 1 may embody various colors and has improved fastness, such as light resistance, water resistance and the like: wherein each of A1 and A2 is independently a moiety which includes a substituted or unsubstituted C2-C30 alkenylene group having at least one double bond and is conjugated with an azo group; each of X1 and X2 is selected from the group consisting of a hydroxy group, a C1-C4 alkoxy group, a carboxyl group, and a substituted or unsubstituted amino group; M is a polyvalent transition metal; L is a neutral or anionic ligand; n is an integer from 1 to 3; and J is a linker. The metal complex colorant may be used in various fields employing colors, such as fibers, foods, drugs, cosmetics, coatings, inks or ceramics.Type: GrantFiled: August 6, 2004Date of Patent: April 29, 2008Assignee: Samsung Electronics Co., Ltd.Inventors: Yeon-kyoung Jung, Seung-min Ryu, Kyung-hoon Lee
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Publication number: 20080092770Abstract: An ink composition including an azo-based colorant and an ink set using the same. More particularly, an ink composition which uses a lithium salt and a derivative including hydroxynaphthalene of a chromophore as colorants, and includes etriol and an acetylene glycol-based compound, and an ink set using the same.Type: ApplicationFiled: April 10, 2007Publication date: April 24, 2008Applicant: Samsung Electronics Co., Ltd.Inventors: Heung-sup PARK, Hee-jung Roh
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Patent number: 7326288Abstract: [PROBLEMS] To provide: a black compound which is for use in ink-jet recording or writing utensils, is excellent in ozone resistance, light resistance, moisture resistance, and color rendering, and gives a recording fluid having satisfactory storage stability; and an ink composition containing the compound. [MEANS FOR SOLVING PROBLEMS] The black compound is a trisazo compound represented by the following formula (1) or a salt thereof. (1) [In the formula (1), R1 and R2 each independently represents hydrogen, carboxy, sulfo, hydroxy, a C1-4 alkyl, C1-4 alkoxy, or sulfo group optionally substituted by C1-4 alkoxy, an optionally carboxylated C1-4 alkoxy group, etc.; and A represents phenyl or naphthyl (provided that the phenyl and naphthyl groups may be substituted by halogeno, carboxy, sulfo, sulfamonyl optionally substituted by alkyl or phenyl, nitro, etc.).Type: GrantFiled: November 26, 2004Date of Patent: February 5, 2008Assignee: Nippon Kayaku Kabushiki KaishaInventors: Takahiko Matsui, Hiroaki Ohno, Takashi Yoneda, Yoshiaki Kawaida, Yasuo Shirasaki
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Publication number: 20070296786Abstract: A black ink composition includes a mixture of an azo metal complex dye having a good light fastness and water fastness and an adjective dye. The ink composition has a neutral black gradation, a high optical density and a good decap performance at a print head of an inkjet printer while printing. An inkjet cartridge for inkjet printing includes the black ink composition, and a recording apparatus for inkjet printing including the ink cartridge are also provided.Type: ApplicationFiled: December 20, 2006Publication date: December 27, 2007Inventors: Cheol Ham, Seung-min Ryu, Hyo-keun Park
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Patent number: 7309389Abstract: The invention is directed to an electrophotographic toner or developer, powder coating, ink jet ink or an electronic media having an azo colorant prepared by conducting the diazotization of aromatic or hetaromatic amines or the azo coupling reaction or the diazotization and the azo coupling reaction in a microreactor.Type: GrantFiled: June 9, 2006Date of Patent: December 18, 2007Assignee: Clariant Finance (BVI) LimitedInventors: Ruediger Baur, Hans-Tobias Macholdt, Uwe Nickel, Leonhard Unverdorben, Christian Wille
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Patent number: 7288143Abstract: A water-based ink containing a water-soluble dimer coloring material having a molecular structure having two chromophores and being symmetrical via a decomposable linking group, a water-soluble monomer coloring material having the same structure as the molecular structure obtained by the decomposition of the linking group in the water-soluble dimer coloring material, and a first water-soluble organic solvent which is a triol compound being liquid at normal temperature and having less than 5 carbon atoms, capable of restraining the water-soluble dimer coloring material from being decomposed. The water-soluble monomer coloring material is from 1% or more to 12% or less in weight with respect to the weight of the water-soluble dimer coloring material. Also disclosed are an ink tank holding therein this ink, and an ink-jet recording process carried out using this ink.Type: GrantFiled: December 8, 2004Date of Patent: October 30, 2007Assignee: Canon Kabushiki KaishaInventors: Yoshihide Aikawa, Shinichi Sato
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Patent number: 7288142Abstract: The present invention relates to a black dyes composition for ink-jet printing ink comprising (A) a compound of the following formula (I) wherein, R1 is —SO2CH2CH2OSO3H or —SO2CH?CH2 or —SO2CH2CH2OH; M is H, Na or Li; (B) a compound of the following formula (II) wherein, R1 is —SO2CH2CH2OSO3H or —SO2CH?CH2 or —SO2CH2CH2OH; M is H, Na or Li; and (C) a compound of the following formula (III) wherein, R1 is —SO2CH2CH2OSO3H or —SO2CH?CH2 or —SO2CH2CH2OH; M is H, Na or Li; these compositions are particularly suitable for using in paper inkjet printing ink, and inkjet printing inks with good light-fastness and solubility are obtained.Type: GrantFiled: August 30, 2005Date of Patent: October 30, 2007Assignee: Everlight USA, Inc.Inventors: Jen-Fang Lin, Chien-Wen Lee, Tzu-Kwei Sun, Tsung-Wen Huang
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Patent number: 7279033Abstract: An ink-jet ink containing a colorless, water-soluble, planar compound having more than ten delocalized pi-electrons per molecule.Type: GrantFiled: September 9, 2004Date of Patent: October 9, 2007Assignee: Fujifilm CorporationInventors: Yoshiharu Yabuki, Toshiki Taguchi, Makoto Suzuki
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Patent number: 7273520Abstract: Ink set for ink jet printing comprised of at least one yellow ink, one magenta ink, one cyan ink and one black ink, wherein the yellow ink contains a mixture of at least one yellow dye with reddish hue of formula (I), wherein R, M, R17, R18, p4, n and m are as defined in the specification and at least one yellow dye with greenish hue of formula (II), wherein R, M, R6, R7, R8, n and m are as defined in the specification.Type: GrantFiled: January 27, 2005Date of Patent: September 25, 2007Assignee: ILFORD Imaging Switzerland GmbHInventors: Jean-Luc Gremaud, Arnd Kriebel