Organic Oxygen Compound Containing Patents (Class 106/31.86)
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Publication number: 20120229559Abstract: The present invention provides an ink set which has a good discharge stability, with which high-definition images are obtained even when printing at high speed, and which is excellent in drying characteristics and thereby it is difficult for offset to occur. An ink set containing an ink composition containing (a) a pigment, (b) a water-soluble solvent, (c) a surfactant, and (d) water, and a colorless ink composition containing (e) a coagulation accelerator for accelerating the coagulation of the ink composition, and (f) a water-soluble solvent, characterized in that the water-soluble solvent (b) of the ink composition contains 65% by mass or more of a water-soluble solvent having an SP value of 27.5 or less, and the content of the water-soluble solvent (b) in the ink composition is from 30% by mass to 55% by mass, and that the water-soluble solvent (f) of the colorless ink composition contains 90% by mass or more of a water-soluble solvent having an SP value of 27.5 or more.Type: ApplicationFiled: March 9, 2012Publication date: September 13, 2012Applicant: FUJIFILM CORPORATIONInventor: Yasuaki MATSUSHITA
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Patent number: 8257480Abstract: An ink set, comprising: an oil based ink composition containing a metallic pigment; and at least one or more oil based ink compositions selected from a group consisting of a chromatic color ink composition containing chromatic color pigment, a black ink composition containing black pigment, and a white ink composition containing white pigment.Type: GrantFiled: October 27, 2010Date of Patent: September 4, 2012Assignee: Seiko Epson CorporationInventors: Takashi Oyanagi, Kiyohiko Takemoto, Chiyoshige Nakazawa
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Patent number: 8257482Abstract: A water base ink for ink jet recording contains a self-dispersible pigment; water; at least one glycol ether selected from the group consisting of diethylene glycol butyl ether, dipropylene glycol propyl ether and triethylene glycol butyl ether; and methyl cellulose in an amount of 0.01% by weight to 0.5% by weight. The water base ink is capable of preventing the strike-through to the back surface of a recording paper, and further the water base ink is excellent in the printing density and drying property on the paper surface.Type: GrantFiled: September 18, 2009Date of Patent: September 4, 2012Assignee: Brother Kogyo Kabushiki KaishaInventor: Kou Shimada
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Patent number: 8258203Abstract: The present invention pertains to a black inkjet ink comprising aqueous vehicle and carbon black pigment stabilized to dispersion by a certain block copolymer dispersant. The invention further pertains to an ink set comprising this black ink and at least a second ink which contains a reactive species capable of destabilizing the carbon black dispersion. Still further, the invention pertains to a method of printing wherein the black ink and second ink are printed in an overlapping relationship, thereby minimizing penetration, feathering and/or bleed of the black pigment and improving print quality.Type: GrantFiled: December 21, 2006Date of Patent: September 4, 2012Assignee: E I du Pont de Nemours and CompanyInventors: Robert Paul Held, C. Chad Roberts, Gregory R. Schulz
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Patent number: 8257481Abstract: An ink set, comprising: an oil based ink composition containing a metallic pigment; and at least one or more oil based ink compositions selected from a group consisting of a chromatic color ink composition containing chromatic color pigment, a black ink composition containing black pigment, and a white ink composition containing white pigment.Type: GrantFiled: September 22, 2011Date of Patent: September 4, 2012Assignee: Seiko Epson CorporationInventors: Takashi Oyanagi, Kiyohiko Takemoto, Chiyoshige Nakazawa
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Publication number: 20120204756Abstract: A non-aqueous ink including at least a pigment and an organic solvent, wherein the organic solvent includes at least one ester solvent selected from a phosphoric acid ester solvent, a boric acid ester solvent and a silicic acid ester solvent by an amount of 50 mass % or more, and a content of a polymer component in the ink is 20 mass % or less relative to the pigment.Type: ApplicationFiled: January 30, 2012Publication date: August 16, 2012Applicant: RISO KAGAKU CORPORATIONInventors: Tetsuo HOSOYA, Toshihiro ENDO
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Patent number: 8231723Abstract: An ink set, comprising: an oil based ink composition containing a metallic pigment; and at least one or more oil based ink compositions selected from a group consisting of a chromatic color ink composition containing chromatic color pigment, a black ink composition containing black pigment, and a white ink composition containing white pigment.Type: GrantFiled: October 27, 2010Date of Patent: July 31, 2012Assignee: Seiko Epson CorporationInventors: Takashi Oyanagi, Kiyohiko Takemoto, Chiyoshige Nakazawa
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Publication number: 20120186488Abstract: A pigment dispersion containing a metal pigment, wherein the metal pigment contains plate-like particles, and in the case where the longitudinal diameter on the planar surface of the plate-like particle is X, the lateral diameter is Y, and the thickness is Z, the 50% average particle diameter R50 of a corresponding circle determined from the surface area in the X-Y plane of the plate-like particle is between 0.5 and 3 ?m, and the condition R50/Z>5 is satisfied.Type: ApplicationFiled: April 3, 2012Publication date: July 26, 2012Inventors: Takashi OYANAGI, Keitaro Nakano
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Patent number: 8226759Abstract: An ink composition of inkjet recording which includes at least one surfactant containing benzophenone polyoxyethylene glycol-based compound, a colorant, and a solvent. A multi-color ink set that includes the ink composition of inkjet recording, a cartridge of inkjet recording, and an inkjet recording apparatus are also provided.Type: GrantFiled: December 24, 2009Date of Patent: July 24, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Dong-houn Shin, Heung-sup Park, Ho-ryul Lee
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Patent number: 8226756Abstract: One embodiment of the invention is an emulsion type inkjet ink including water, a pigment, an emulsifier, and an alcohol compound in which the alcohol compound is dispersed in water with the emulsifier. The emulsifier is a polyoxyethylene sorbitan fatty acid ester compound, and the alcohol compound is a compound including an aromatic ring and having a boiling point of 180° C. or higher.Type: GrantFiled: December 8, 2009Date of Patent: July 24, 2012Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: Ryozo Akiyama, Hiroshi Kiyomoto, Takafumi Hara, Maiko Yoshida
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Patent number: 8227524Abstract: An inkjet ink composition includes from about 3 wt. % to about 8 wt. % of a solvent selected from diacetone alcohol, 2,3-butanediol, 1,3,5-trioxane, hexylene glycol, and combinations thereof. The composition further includes from about 0.5 wt. % to about 1 wt. % of 1,2-hexanediol; from about 0.1 wt. % to about 2.0 wt. % of a fluorosurfactant; from about 3 wt. % to about 6 wt. % of a pigment; a dispersant; and water.Type: GrantFiled: August 25, 2006Date of Patent: July 24, 2012Assignee: Hewlett-Packard Development Company, L.P.Inventor: Luanne J. Rolly
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Publication number: 20120167798Abstract: An offset printing varnish, comprising a solvent, is provided. The solvent comprises at least one triglyceride with saturated monocarboxylic acid moieties, which solvent is preferably food safe.Type: ApplicationFiled: March 9, 2012Publication date: July 5, 2012Inventors: Tillmann PULINA, Christian Johnke
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Patent number: 8187372Abstract: An ink-jet O/W emulsion ink of the present invention includes an aqueous continuous phase (a), and a nonaqueous discontinuous phase (b), wherein the aqueous continuous phase (a) includes water, at least one pigment and at least one ionic or nonionic surfactant, and the nonaqueous discontinuous phase (b) includes at least one water-insoluble organic material having a hydroxyl group.Type: GrantFiled: November 11, 2008Date of Patent: May 29, 2012Assignee: Ricoh Company, Ltd.Inventor: Yukitaka Watarai
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Publication number: 20120127240Abstract: A solvent-based ink composition for a thermal inkjet printhead. The composition includes: (a) 10-80 wt. % of a compound of formula (B): wherein: R5 is a C1-6 alkyl group and R6 is a C1-6 alkyl group; or R5 and R6 are together joined to form a C3-12 cycloalkylene group; (b) 10-80 wt. % of a C1-6 alcohol; and (c) 0.01-25 wt. % of a surface-modified pigment.Type: ApplicationFiled: December 19, 2011Publication date: May 24, 2012Inventors: Alexander Grant, Adrian Bisson, Iain Blake, Simon Fielder, Kia Silverbrook
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Publication number: 20120125229Abstract: A printing ink, preferably ink-jet ink, containing pearlescent pigments and at least one of at least one solvent, at least one radiation-curable component and at least one binder, wherein the pearlescent pigments comprise a substantially transparent platelet-shaped substrate having a density ?S and at least one optically active coating having a density ?M, and the pearlescent pigments have a d90 value for a cumulative frequency distribution of a volume-averaged size distribution function with a range from 3.5 to 15 ?m. The invention further relates to a process for producing the printing ink.Type: ApplicationFiled: June 22, 2010Publication date: May 24, 2012Inventors: Michael Grüner, Günter Kaupp, Stefan Engel, Barbara Mendler, Ulrich Schmidt
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Patent number: 8182597Abstract: A solvent-based inkjet ink composition for inkjet printing includes at least 50 weight percent solvent, a colorant, a humectant, from 0.3 weight % to 8 weight % of a binder resin, and not more than 5 weight percent water. The ink composition is compatible with components of a thermal ink jet printer.Type: GrantFiled: September 8, 2010Date of Patent: May 22, 2012Inventors: Casey Robertson, Anthony Selmeczy, John Folkers
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Patent number: 8177899Abstract: A non-aqueous pigment ink comprising a pigment, a pigment dispersant and a non-aqueous solvent, wherein the non-aqueous solvent comprises an alcohol solvent, a fatty acid ester solvent and a hydrocarbon solvent, the alcohol solvent comprises a saturated branched alcohol containing 14 to 18 carbon atoms and having one branch, and an amount of the saturated branched alcohol is within a range from 3 to 40% by mass relative to a total mass of the ink.Type: GrantFiled: March 11, 2010Date of Patent: May 15, 2012Assignee: Riso Kagaku CorporationInventor: Toshihiro Endo
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Publication number: 20120105938Abstract: A pigment-based ink includes a non-polar carrier fluid and pigment particles suspended in the non-polar carrier fluid. The pigment particles have surface functionalized anionic groups. A combination of an electronic display and an electronic ink is provided, as is a method for modifying the pigment particles.Type: ApplicationFiled: November 2, 2010Publication date: May 3, 2012Inventors: Qin Liu, Zhang-Lin Zhou
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Publication number: 20120103542Abstract: An ink dispersion includes an ink vehicle and a colorant dispersed in the ink vehicle. The ink vehicle includes a non-ionic surfactant and a solvent. The non-ionic surfactant has an HLB value ranges from about 5 to about 16, and is chosen from: i) a material represented by one of the formulas R1—O—(OR2)n—H, R1—(OR2)n—OH or R1—C6H4—(OR2)n—OH, wherein: R1 is chosen from a) a linear or cyclic alkyl group including from 3 to 20 carbon atoms, or b) a substituted or non-substituted alkyl group including from 6 to 18 carbon atoms, R2 is chosen from CH2CH2 or CH2CH2CH2, and n is an integer chosen from 2 to 100; or ii) a diester having at least one ethylene oxide repeating unit; or iii) an octylphenol having at least one ethylene oxide repeating unit.Type: ApplicationFiled: October 29, 2010Publication date: May 3, 2012Inventors: Hou T. Ng, Manoj K. Bhattacharyya, Howard S. Tom
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Patent number: 8167992Abstract: A composition comprising a particulate Solid, an organic medium and a compound with an alkyleneoxy compound with an inorganic acidic polar head group (Z), wherein the compound is defined by Formula (1) and salts thereof: U—(Y)x-T-N(G)r(B—Z)q (Formula 1) wherein U is independently R?—N—(C)-T?-O—, or R—O—; R or R? may be the same or different and are independently H or C1-50-optionally substituted hydrocarbyl, or hydrocarbonyl group (acyl group), or the residue of an epoxide, or the residue of an optionally substituted (meth) acrylic ester or amide group; Y is C2-4-alkyleneoxy; T or T? is independently C2-4 alkylene; B is an alkylene group, such as, methylene; Z is an inorganic acidic polar head group, such as, a sulphur or phosphorus acidic polar head group; G and G? may be the same or different and are independently H or C1-50-optionally substituted hydrocarbyl or C1-50-optionally substituted hydrocarbyl or hydrocarbonyl group or the residue of an epoxide, or the residue of an optionally substituted (meth) acType: GrantFiled: December 14, 2006Date of Patent: May 1, 2012Assignee: Lubrizol LimitedInventors: Dean Thetford, Patrick J. Sunderland, Neil L. Simpson
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Patent number: 8163075Abstract: An ink composition that includes a self-dispersing pigment that has about 0.02 to about 1.0 mMoles of S and about 0.2 to about 2.0 mMoles of active hydrogen per gram of pigment, water, and an organic solvent. A method of making an ink composition that includes sulfonating a pigment, subsequently oxidizing the pigment to produce a modified pigment, and incorporating the modified pigment into an ink.Type: GrantFiled: October 31, 2007Date of Patent: April 24, 2012Assignee: Sensient Colors LLCInventors: Jeff Kennedy, Diane V. Graff, Daniel F. Gloster, Michael Bogomolny, Puthalath K. Sujeeth, Ryan Cross
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Patent number: 8163077Abstract: The invention relates to an ink-jet ink composition for printing on a ceramic substrate comprising: (a) a liquid vehicle; (b) sub-micron particles of binding composition having a melting point below 6000 C; and (c) sub-micron particles causing an etch-like effect, said sub-micron particles are selected from metal oxide particles, high melting point frit particles, and a combination thereof, said sub-micron particles causing an etch-like effect have a melting point of at least 500 C above the melting point of said sub-micron particles of binding composition. The invention further relates to a printing process using such ink and to a ceramic substrate printed with a pattern or image having an etch-like effect, by means of the printing process.Type: GrantFiled: September 28, 2006Date of Patent: April 24, 2012Assignees: Yissum Research Development Company of the Hebrew University of Jerusalem, DIP Tech. Ltd.Inventors: Gera Eron, Avi Feinschmidt, Shlomo Magdassi, Yelena Vinetsky, Eliane Liraz
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Patent number: 8142560Abstract: An ink set including two or more kinds of ink compositions including at least a black ink composition and a color ink composition, in which the black ink composition includes a self-dispersion type pigment having a hydrophilic group on the surface thereof, the color ink composition includes a self-dispersion type pigment having a hydrophilic group on the surface thereof with a phenyl group, and all the ink compositions include resin emulsion, is used in an ink jet recording method. Provision of an ink set for ink jet recording, which is capable of realizing a good image, in addition to high color developability, high ejection stability, high clogging recovering properties, and high fixability.Type: GrantFiled: March 24, 2009Date of Patent: March 27, 2012Assignee: Seiko Epson CorporationInventors: Chie Saito, Miharu Kanaya
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Patent number: 8142558Abstract: Disclosed are ink jet ink compositions suitable for use in thermal ink jet printers. The ink jet ink compositions contain one or more volatile organic solvents, one or more humectants, one or more binder resins, and one or more colorants. The ink jet ink compositions may also contain additives such as a plasticizer and/or a surfactant. Embodiments of the ink jet ink compositions have short dry times, good adhesion to a variety of substrates, and/or long decap times.Type: GrantFiled: March 31, 2008Date of Patent: March 27, 2012Inventors: Casey Robertson, Anthony Selmeczy, John P. Folkers
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Patent number: 8137448Abstract: There is provided an ink composition that can realize high-quality images free from white streaks or roughness even in low resolution when printing paper for running-on such as art paper is used. The ink composition comprises at least a colorant, water, an alcohol solvent, and a surfactant, wherein the alcohol solvent comprises a sparingly water soluble alkanediol, a water soluble alkanediol, and a water soluble alkanetriol.Type: GrantFiled: May 14, 2008Date of Patent: March 20, 2012Assignee: Seiko Epson CorporationInventors: Shuichi Koganehira, Akira Mizutani, Hironori Sato
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Publication number: 20120062644Abstract: According to one embodiment, an aqueous inkjet ink includes a color material, water in an amount of 50-70% by mass of the total amount of the ink, and a water-soluble organic solvent in an amount of 29-49% by mass of the total amount. The soluble organic solvent contains a compound represented by the following general formula 1 which accounts for 10-36% by mass of the total amount of ink. When the amount of the compound is equal to the amount of the solvent, the total amount of the solvent is the compound. The sum of the amounts of the color material, the water, and the water-soluble organic solvent is 100% by mass or less of the ink. Where, X1, X2, and X3 each independently represent EOn, and X4 represents an CH3CH2— or an (EOn)O—. EOn is represented by the following general formula 2, where n representing an integer of 1-5.Type: ApplicationFiled: September 1, 2011Publication date: March 15, 2012Applicants: TOSHIBA TEC KABUSHIKI KAISHA, KABUSHIKI KAISHA TOSHIBAInventors: Takafumi Hara, Ryozo Akiyama, Maiko Yoshida, Chie Tonohiro, Atsushi Kubota
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Publication number: 20120062645Abstract: According to one embodiment, an aqueous inkjet ink includes a color material, water in an amount of from 50-70% by mass of the total amount of the ink, and a water-soluble organic solvent in an amount of from 29-49% by mass of the total amount. The water-soluble organic solvent contains a compound represented by the following general formula 1, and the compound represented by the following general formula 1 accounts for 10-35% by mass of the total amount of the ink. The sum of the amounts of the color material, the water, and the water-soluble organic solvent is 100% by mass or less of the ink. Where, R1 and R2 each independently represent an alkyl group having 1 to 4 carbon atoms, and m and n each represent an integer satisfying the relation: 2?m+n?6.Type: ApplicationFiled: September 1, 2011Publication date: March 15, 2012Applicants: TOSHIBA TEC KABUSHIKI KAISHA, KABUSHIKI KAISHA TOSHIBAInventors: Takafumi Hara, Ryozo Akiyama, Maiko Yoshida, Chie Tonohiro, Atsushi Kubota
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Patent number: 8133314Abstract: An ink composition includes at least a pigment, a humectant, and water in from 10 to 60% by weight to the total amount of ink. The humectant is a mixture of (A) at least one compound selected from glycerin, 1,2,6-hexanetriol, diethylene glycol, triethylene glycol, tetraethylene glycol, and dipropylene glycol; (B) either trimethylol propane or trimethylol ethane, or a mixture thereof; and (C) at least one compound selected from betaines, saccharides, and ureas and having a molecular weight in the range of from 100 to 200, at a content weight ratio of (A):(B):(C) of 1.0:0.1 to 1.0:1.0 to 3.5.Type: GrantFiled: March 24, 2010Date of Patent: March 13, 2012Assignee: Seiko Epson CorporationInventors: Daisuke Ishihara, Miharu Kanaya, Chie Maruyama, Masaru Kumagai
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Patent number: 8133311Abstract: The present invention relates to pigment dispersions comprising a liquid vehicle, a pigment, and a non-polymeric dispersant comprising at least one functional groups. Various embodiments of the functional group are disclosed. For each of these embodiments, preferably the functional group has a defined calcium index value. Also disclosed are various uses for these dispersions, including inkjet ink compositions.Type: GrantFiled: April 30, 2007Date of Patent: March 13, 2012Assignee: Cabot CorporationInventors: Elizabeth G. Burns, James A. Belmont, Alexander I. Shakhnovich
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Patent number: 8133313Abstract: An embodiment of the invention is concerned with an aqueous inkjet ink containing an ink solvent containing water and a water-soluble organic solvent containing glycerin and triethylene glycol and a pigment dispersed in the ink solvent. The water-soluble organic solvent accounts for from 30 to 80% by weight of the ink solvent, a weight of the triethylene glycol is from 0.5 to 1.5 times the weight of the glycerin, and the pigment is blended in an amount of from 2 to 20% by weight of the total weight of the ink.Type: GrantFiled: February 11, 2009Date of Patent: March 13, 2012Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: Ryozo Akiyama, Hiroshi Kiyomoto, Takaya Kitawaki
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Patent number: 8123845Abstract: The invention provides a dual color ink composition which comprises: (a) at least one pigment selected from a pearlescent pigment and a metal powder pigment; (b) water; (c) at least one water-soluble organic solvent selected from alcohols, glycols and glycol ethers, any of which have a branched hydrophobic group; (d) a water-soluble dye; and (e) a modified starch as a water-soluble fixing agent.Type: GrantFiled: June 11, 2007Date of Patent: February 28, 2012Assignee: Sakura Color Products CorporationInventors: Takeshi Omatsu, Tomochika Yoshitsugi
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Patent number: 8123847Abstract: The water base ink for ink jet recording of the present invention is a water base ink for ink-jet recording containing a coloring agent, water, a penetrant, and a surfactant; wherein the penetrant includes diethylene glycol n-hexyl ether (A); the surfactant includes at least one surfactant (B) selected from the group consisting of alkyl sulfonate, alkylbenzene sulfonate, alkyl carboxylate, and polyoxyethylene alkyl ether sulfate; a weight ratio (B/A) of (B) with respect to (A) is not less than 0.10; and the (A) is contained in the ink in an amount of 1.0% by weight to 2.5% by weight.Type: GrantFiled: September 21, 2009Date of Patent: February 28, 2012Assignee: Brother Kogyo Kabushiki KaishaInventor: Hisako Tonishi
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Publication number: 20120033012Abstract: An ink jet ink including a self-dispersible pigment, a salt, a polyoxyethylene alkyl ether and a water-soluble organic solvent. The self-dispersible pigment is a pigment to a surface of a particle of which a functional group containing at least a phosphonic acid group is bonded, the introduced amount of the functional group bonded to the self-dispersible pigment is 0.10 to 0.33 mmol/g. The salt is constituted by combining a specific cation with a specific anion. The value (Concentration of anion)×(Valence number of anion) of the salt in the ink is 0.005 to 0.06 mol/L. The water-soluble organic solvent includes glycerol, the content of which in the ink is 35% to 78% by mass based on the total content of the water-soluble organic solvent in the ink.Type: ApplicationFiled: July 5, 2011Publication date: February 9, 2012Applicant: CANON KABUSHIKI KAISHAInventors: Souichi Nagai, Masashi Ogasawara, Keigo Gouda, Fumiaki Fujioka, Akiko Yasuda
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Publication number: 20120033010Abstract: According to one embodiment, an aqueous inkjet ink includes a color material in an amount of 2 to 20% by mass of the total amount of ink, water in an amount of 41 to 70% by mass of the total amount, and a water-soluble organic solvent in an amount of 20 to 53% by mass of the total amount. The solvent contains a compound represented by the following general formula 1 which accounts for 20 to 50% by mass of the total amount of ink. When the amount of compound is equal to the amount of solvent, the total amount of solvent is the compound, and the sum of the amounts of the color material, the water, and the solvent is 100% by mass or less of the ink. Where, each of a, b, and c represents an integer of 1 or more, and satisfies 3?a+b+c?15.Type: ApplicationFiled: July 22, 2011Publication date: February 9, 2012Applicants: TOSHIBA TEC KABUSHIKI KAISHA, KABUSHIKI KAISHA TOSHIBAInventors: Maiko Yoshida, Ryozo Akiyama, Takafumi Hara, Chie Tonohiro, Atsushi Kubota
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Patent number: 8110032Abstract: A solvent-based ink composition for a thermal inkjet printhead. The ink composition comprises: (a) 20-80 wt. % of a compound of formula (C); wherein: R7 is a C2-12 alkyl group interrupted with 0, 1, 2 or 3 oxygen atoms; (b) 10-70 wt. % of a C1-6 alcohol; and (c) 0.01-25 wt. % of a colorant.Type: GrantFiled: September 11, 2009Date of Patent: February 7, 2012Assignee: Silverbrook Research Pty LtdInventors: Alexander Grant, Simon Fielder, Damon Donald Ridley, Kia Silverbrook
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Patent number: 8110034Abstract: An ink set for ink jet recording that realizes a satisfactory image in addition to high color-developing ability, high ejection stability, and high recover ability from clogging is provided. An ink set contains two or more ink compositions at least including a black ink composition and a color ink composition. The black ink composition includes a self-dispersing pigment having a hydrophilic group on the surface thereof and the color ink composition includes a self-dispersing pigment having a hydrophilic group on the surface thereof with a phenyl group interposed therebetween. The ink set is used for an ink jet recording method.Type: GrantFiled: March 25, 2009Date of Patent: February 7, 2012Assignee: Seiko Epson CorporationInventors: Chie Saito, Miharu Kanaya
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Patent number: 8110033Abstract: An ink composition that achieves high-quality images free of white streaks or rough textures even when low-resolution printing is performed on printing paper such as art paper. The ink composition contains at least a colorant, water, and a surfactant, and further contains a sparingly water-soluble alkanediol, a water-soluble 1,2-alkanediol, a dialkylene glycol, and a water-soluble alkanetriol or a sugar. This ink composition is used in an ink jet recording method.Type: GrantFiled: September 30, 2009Date of Patent: February 7, 2012Assignee: Seiko Epson CorporationInventors: Akira Mizutani, Shuichi Koganehira, Hironori Sato, Masashi Kamibayashi
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Patent number: 8105429Abstract: An ink set includes an oil-based ink composition containing a metallic pigment; and at least one oil-based ink composition selected from the group consisting of a chromatic color ink composition containing a chromatic color oil dye, a black ink composition containing a black oil dye, and a colorless and transparent ink composition that does not contain a colorant.Type: GrantFiled: October 26, 2010Date of Patent: January 31, 2012Assignee: Seiko Epson CorporationInventors: Takashi Oyanagi, Akio Ito, Seishin Yoshida
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Patent number: 8105427Abstract: An ink composition that can form a high-quality image free from bleeding or beading even on printing paper or off-set printing paper such as art paper, in particular, even in a case of low-resolution printing, and is excellent in the property of recovering from clogging even after having been left under environment of high temperature and low humidity. The ink composition for ink jet recording includes at least a coloring material, water, a slightly water-soluble alkanediol, and a polyalkylene glycol.Type: GrantFiled: September 30, 2009Date of Patent: January 31, 2012Assignee: Seiko Epson CorporationInventors: Shuichi Koganehira, Masashi Kamibayashi, Hironori Sato
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Patent number: 8101012Abstract: A solvent-based ink composition for a thermal inkjet printhead. The ink composition comprises: (a) 20-80 wt. % of a compound of formula (A); wherein: R1 is C1-6 alkyl; and each of R2, R3 and R4 is independently selected from H, C1-6 alkyl, halogen, OH, and C1-6 alkoxy; (b) 10-70 wt. % of a C1-6 alcohol; and (c) 0.01-25 wt. % of a colorant.Type: GrantFiled: September 11, 2009Date of Patent: January 24, 2012Assignee: Silverbrook Research Pty LtdInventors: Alexander Grant, Simon Fielder, Damon Donald Ridley, Kia Silverbrook
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Publication number: 20120013676Abstract: According to one embodiment, an aqueous inkjet ink includes a pigment in an amount of 2 to 20% by mass of the total amount of the aqueous inkjet ink, and a dispersion medium in which the pigment is dispersed. The dispersion medium contains water in the amount of 53 to 94% by mass, with the remainder of the dispersion medium being a compound represented by the following general formula 1. The water accounts for 50 to 80% by mass of the total amount of the aqueous inkjet ink. In the general formula 1, a, b, and c may be the same or different, each representing an integer of 1 or more, and satisfy the following inequation: 4?a+b+c?10.Type: ApplicationFiled: July 11, 2011Publication date: January 19, 2012Applicants: TOSHIBA TEC KABUSHIKI KAISHA, KABUSHIKI KAISHA TOSHIBAInventors: Ryozo Akiyama, Atsushi Kubota, Maiko Yoshida, Takafumi Hara, Chie Tonohiro
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Patent number: 8097076Abstract: Low-VOC mixture of at least partially salified copolymers of at least one ethylenically unsaturated, phenyl-group-containing monomer and at least one ?,?-unsaturated monocarboxylic acid and/or at least one ?,?-unsaturated dicarboxylic acid, of at least one water-soluble polyether, esterification products of at least one water-soluble polyether and an aliphatic dicarboxylic acid, and of a star polymer obtainable by esterifying a carboxylic acid containing at least 3 carboxyl groups with at least one water-soluble polyether, and use thereof as a wetting and dispersing agent, preferably for producing low-VOC pigment pastes or low-VOC paint systems.Type: GrantFiled: July 28, 2010Date of Patent: January 17, 2012Assignee: BYK-Chemie GmbHInventors: Bernd Göbelt, Carsten Nagel, Jürgen Omeis, Marcus Meichsner, Diana Walter
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Patent number: 8097075Abstract: An ink set includes an oil-based ink composition containing a metallic pigment; and at least one oil-based ink composition selected from the group consisting of a chromatic color ink composition containing a chromatic color oil dye, a black ink composition containing a black oil dye, and a colorless and transparent ink composition that does not contain a colorant.Type: GrantFiled: July 6, 2009Date of Patent: January 17, 2012Assignee: Seiko Epson CorporationInventors: Takashi Oyanagi, Akio Ito, Seishin Yoshida
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Publication number: 20120006224Abstract: An ink set, comprising: an oil based ink composition containing a metallic pigment; and at least one or more oil based ink compositions selected from a group consisting of a chromatic color ink composition containing chromatic color pigment, a black ink composition containing black pigment, and a white ink composition containing white pigment.Type: ApplicationFiled: September 22, 2011Publication date: January 12, 2012Applicant: SEIKO EPSON CORPORATIONInventors: Takashi OYANAGI, Kiyohiko TAKEMOTO, Chiyoshige NAKAZAWA
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Publication number: 20120006225Abstract: An ink composition contains an organic solvent, a metal pigment, and a silicone oil having a kinematic viscosity of 2 to 30 cSt in a proportion of 0.01% by mass or more and less than 0.5% by mass relative to the total mass of the ink composition. The value of expression (1) is 0.1 or more and less than 9.Type: ApplicationFiled: July 8, 2011Publication date: January 12, 2012Inventors: Kazuaki TSUKIANA, Takashi OYANAGI
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Publication number: 20110315049Abstract: An oily inkjet ink comprises a pigment, a pigment dispersant, and a solvent, wherein the solvent contains a hydrocarbon type solvent (A), a solvent (B) having at least an ester group and an ether group in one molecule, and a solvent (C) that is soluble in the hydrocarbon type solvent and the solvent having at least an ester group and an ether group in one molecule.Type: ApplicationFiled: June 24, 2011Publication date: December 29, 2011Applicant: RISO KAGAKU CORPORATIONInventors: Satoshi AOKI, Manami SHIMIZU, Kyoko MOTOYAMA
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Patent number: 8080102Abstract: A solvent-based ink composition for a thermal inkjet printhead comprises a surface-modified pigment. The ink composition comprises: (a) 10-80 wt. % of a compound of formula (A); wherein: R1 is C1-6 alkyl; and each of R2, R3 and R4 is independently selected from H, C1-6 alkyl, halogen, OH, and C1-6 alkoxy; (b) 10-80 wt. % of a C1-6 alcohol; and (c) 0.01-25 wt. % of the surface-modified pigment.Type: GrantFiled: November 5, 2009Date of Patent: December 20, 2011Assignee: Silverbrook Research Pty LtdInventors: Alexander Grant, Adrian Bisson, Iain Blake, Simon Fielder, Kia Silverbrook
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Patent number: 8070871Abstract: An ink jet ink is provided which can retain good stability and shows superior intermittent ejection stability not only under a low-temperature, low-humidity environment but also a high-temperature, low-humidity environment even when the evaporation of water in the ink progresses. The ink jet ink includes a coloring material and water-soluble organic solvents, wherein the content of the coloring material is less than 7.0 mass %, the water-soluble organic solvents include glycerin and a branched alkanediol having hydroxyl groups at both terminals of its main chain, the content C of glycerin is 6.0 to 12.0 mass %, the content A of the branched alkanediol is 4.0 to 11.0 mass %, and the content A of the branched alkanediol and the total content B of the water-soluble organic solvents satisfy the relationship of 0.30?A/B?0.50.Type: GrantFiled: February 18, 2009Date of Patent: December 6, 2011Assignee: Canon Kabushiki KaishaInventors: Minako Kawabe, Hiroshi Tomioka, Kumiko Mafune, Hideki Yamakami, Satomi Yanagimachi
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Publication number: 20110292141Abstract: A nonaqueous ink composition for ink jet recording includes a solvent represented by general formula (1) and having a hydrophile-lipophile balance value of 10.5 to 20.0: where R1 denotes an alkyl group having 1 to 4 carbon atoms.Type: ApplicationFiled: May 26, 2011Publication date: December 1, 2011Applicant: Seiko Epson CorporationInventors: Akihito Sao, Shinichi Itaya, Shushi Makita
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Patent number: 8062412Abstract: A water-based ink for ink-jet recording includes a self-dispersing pigment, water, a water-soluble organic solvent, and an acetylene glycol surfactant. An amount of the self-dispersing pigment (solid content) relative to a total amount of the ink is in a range of about 3.5 wt % to about 4.5 wt %. The water-soluble organic solvent includes glycerin and dipropylene glycol propyl ether, an amount of the glycerin relative to a total amount of the ink is in a range of about 15 wt % to about 25 wt %, and an amount of the dipropylene glycol propyl ether relative to a total amount of the ink is in a range of about 2.0 wt % to about 3.0 wt %. An amount of the acetylene glycol surfactant relative to a total amount of the ink is in a range of about 0.1 wt % to about 0.3 wt %.Type: GrantFiled: December 23, 2008Date of Patent: November 22, 2011Assignee: Brother Kogyo Kabushiki KaishaInventors: Michiko Aoyama, Yasuhiro Taga, Kenta Hayashida, Mitsunori Maeda