Organic Oxygen Compound Containing Patents (Class 106/31.86)
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Patent number: 7347892Abstract: Disclosed is a phase change ink composition comprising (a) an ink carrier comprising (1) a polyalkylene wax and (2) a component selected from the group consisting of (A) amides, (B) esters, (C) ester-amides, (D) urethanes, (E) ureas, (F) urethane-ureas, and (G) mixtures thereof, and (b) pigment particles having hydrophobic functional groups covalently bonded to the surfaces thereof, said ink composition having a melting point no lower than about 40° C., said ink composition having a melting point no higher than about 160° C.Type: GrantFiled: August 13, 2004Date of Patent: March 25, 2008Assignee: Xerox CorporationInventors: Christine E Bedford, Marcel P Breton
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Patent number: 7347891Abstract: A water base ink set for ink-jet recording includes a black ink containing water, a black pigment and a water-soluble organic solvent and a color ink containing water, a dye, and a water-soluble organic solvent. The black pigment is a negatively-chargeable and self-dispersible pigment. The dye has a fluorescein structure. The color ink further contains an alkylamine ethylene oxide adduct. The water-soluble organic solvent contained in the black ink is same as that contained in the color ink. With the ink set, not only the bleeding hardly occurs but also satisfactory discharge stability is obtained even when an ink-jet recording is performed on a regular paper.Type: GrantFiled: June 16, 2005Date of Patent: March 25, 2008Assignee: Brother Kogyo Kabushiki KaishaInventors: Akihiko Taniguchi, Kazuma Goto, Hideo Ohira, Masaya Fujioka, Shunichi Higashiyama
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Publication number: 20080049086Abstract: 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: ApplicationFiled: August 25, 2006Publication date: February 28, 2008Inventor: Luanne J. Rolly
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Patent number: 7335249Abstract: A water base ink set for ink-jet recording includes a black ink containing a negatively charged self-dispersing black pigment and a water-soluble polyvalent alcohol alkyl ether; and a yellow ink containing a water-soluble anionic yellow dye in which a number of counter ion or ions per one molecule is not more than 3, a surfactant based on amine represented by the following general formula (1), and a water-soluble polyvalent alcohol alkyl ether; R—N—(CH2CH2O)xH(CH2CH2O)yH??(1) wherein R represents an alkyl group or an alkenyl group having a number of carbons of 8 to 18, and x+y is 5 to 15. Accordingly, the water ink set in which no bleeding or no coagulation of the pigment occur is provided.Type: GrantFiled: April 19, 2005Date of Patent: February 26, 2008Assignee: Brother Kogyo Kabushiki KaishaInventors: Kazuma Goto, Narumi Koga, Hideto Yamazaki, Masaya Fujioka, Shunichi Higashiyama
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Publication number: 20080036838Abstract: An ink composition for inkjet recording, and more particularly, an ink composition for inkjet recording in which bleeding between colors of a printed image is reduced, and dry and wet rub fastness of a printed image are improved. The ink composition includes an oxylate-based compound and an amide compound.Type: ApplicationFiled: November 30, 2006Publication date: February 14, 2008Inventors: In-hye Kim, Jong-in Lee
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Publication number: 20080030561Abstract: A composite color includes a first colored ink and a second colored ink. The first colored ink exhibits a color that is different from that exhibited by the second colored ink. The first colored ink includes pigment particles either formulated at a basic pH so that a surface of the pigment particles carries a net negative charge or formulated at an acidic pH so that a surface of the pigment particles carries a net positive charge; and the second colored ink includes pigment particles either formulated at an acidic pH so that a surface of each of the pigment particles carries a net positive charge or formulated at a basic pH so that a surface of the pigment particles carries a net negative charge. The first colored ink and the second colored ink have opposite charges. The composite color exhibits enhanced color richness when printed on a substrate.Type: ApplicationFiled: August 2, 2006Publication date: February 7, 2008Inventors: Jayprakash Bhatt, Cory Ruud, Sundar Vasudevan
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Patent number: 7323045Abstract: Objects of the present invention are to provide a magenta ink composition having good light-fastness and gas resistance, and excellent moisture resistance and clogging resistance, and to provide a magenta ink composition having excellent colorability in addition to these characteristics. The present invention provides a magenta ink composition containing, as colorants, at least one selected from compounds represented by undermentioned formula (1) and salts thereof, and at least one selected from compounds represented by undermentioned formula (2) and salts thereof. Moreover, the present invention also provides a magenta ink composition containing, as colorants, the above and in addition at least one selected from compounds represented by undermentioned formula (3). (Definitions of the symbols in the formulae are as in the claims.Type: GrantFiled: September 28, 2004Date of Patent: January 29, 2008Assignee: Seiko Epson CorporationInventors: Masahiro Hanmura, Kazuhiko Kitamura
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Publication number: 20080000385Abstract: Disclosed is an ink jet ink composition having reduced ink buildup on the printer nozzle plate. The ink jet ink composition comprises a non-conductive solvent, one or more binder resins that are soluble in the non-conductive solvent, and a colorant soluble in the non-conductive solvent. Also disclosed is a method of printing on statically charged substrates. The ink jet ink composition provides one or more advantages: reduced ink buildup on the printer nozzle, reduced down time or cleaning time, and improved print quality.Type: ApplicationFiled: June 30, 2006Publication date: January 3, 2008Applicant: VIDEOJET TECHNOLOGIES INC.Inventors: Patrick J. Moss, Ayesha Syed, Terrence A. Renner
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Patent number: 7314510Abstract: The present invention provides an ink jet liquid composition including chitosan and a non-volatile organic acid. The non-volatile organic acid preferably has two or more carboxyl groups and a cyclic structure other than an aromatic ring. Further, the invention provides an ink jet recording method of forming images on a recording medium surface by ejecting an ink and a liquid composition thereon so that the ink and the liquid are in contact with each other, wherein the ink contains a colorant, the liquid composition contains a component for coagulating the colorant, and the component for coagulating the colorant contains chitosan and a non-volatile organic acid.Type: GrantFiled: September 14, 2004Date of Patent: January 1, 2008Assignee: Fuji Xerox Co., Ltd.Inventor: Hiroyuki Ueki
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Publication number: 20070296785Abstract: An ink composition including a compound having a triester structure that has alternately a hydrophilic group and a hydrophobic group, a coloring agent and a solvent. The compound having the triester structure reduces mobility of the coloring agent and increases adhesion to paper, thereby minimizing bleeding between colors of printed images. The triester compound also improves water fastness of printed images and dry and wet rub fastness to have good colorfastness on paper. In addition, the ink composition improves image quality of printed images and has good long-term storage stability so that it can be widely used in inkjet ink, printing ink, paints, textile printing, paper manufacture, cosmetic manufacture, the ceramic industry and the like.Type: ApplicationFiled: December 20, 2006Publication date: December 27, 2007Inventors: Jong-in Lee, In-hye Kim
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Patent number: 7312006Abstract: The present invention is to provide a pigment dispersion composition for a color filter having the excellent pigment dispersing property and dispersion stability, good developing property and reactivity, and an extremely small residue generation amount after development, a production method capable of stably producing such a pigment dispersion composition, and a color filter for a display having a high transmittance and a low light scattering property. A pigment dispersion composition for a color filter containing at least a pigment, a pigment dispersing agent, a binder resin, a reactive compound, and a solvent, wherein the binder resin is a compound having a pigment adsorbing block containing a pigment adsorbing group and not containing a reactive group, and a reactive block containing a reactive group and not containing a pigment adsorbing group, is provided.Type: GrantFiled: September 14, 2006Date of Patent: December 25, 2007Assignee: Dai Nippon Printing Co., Ltd.Inventors: Hideaki Yamagata, Takehide Kishimoto, Takashi Nishimoto
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Publication number: 20070292692Abstract: A gray ink composition includes an ink vehicle having a black pigment and at least one color pigment dispersed therein. An anionic dispersant is: a) dispersed in the ink vehicle; b) associated with at least a portion of a surface of at least one of the dispersed black pigment or the at least one dispersed color pigment; and/or c) combinations thereof. At least one of the black pigment or the color pigment(s) has an anionic surfactant that is associated with at least another portion of the surface thereof.Type: ApplicationFiled: June 20, 2006Publication date: December 20, 2007Inventors: Shunqiong Yue, Howard A. Doumaux, Anne M. Kelly-Rowley
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Publication number: 20070283845Abstract: An additive comprising an acetylene glycol or ethylene oxide/propylene oxide adduct of acetylene glycol and a sulfur-containing surfactant is added to a dye and water to form an ink composition which exhibits good wetting, penetrating and dispersing properties due to a reduced dynamic surface tension and complies with the environmental problem.Type: ApplicationFiled: June 7, 2006Publication date: December 13, 2007Applicant: NISSIN CHEMICAL INDUSTRY CO., LTD.Inventors: Toru Mizusaki, Shuichiro Shinohara
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Patent number: 7303621Abstract: An inkjet ink composition is provided, which includes pigment, a dispersing agent, and polyalkylene glycol monoether as a solvent. This ink composition is characterized in that the polyalkylene glycol monoether polyalkylene glycol monoether is constituted by 50-90 wt %, based on an entire quantity of the solvent, of tetraethylene glycol monobutylether, and the balance of triethylene glycol monobutylether.Type: GrantFiled: August 31, 2005Date of Patent: December 4, 2007Assignee: Toshiba Tec Kabushiki KaishaInventors: Masashi Hiroki, Takaya Kitawaki, Hiroshi Kiyomoto
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Patent number: 7300508Abstract: There is disclosed an inkjet ink composition including a pigment, a dispersing agent, and a solvent. This solvent is constituted by 60-80 wt %, based on an entire quantity of the solvent, of tetraethylene glycol monobutylether, and the balance of aliphatic alcohol having 14 or 16 carbon atoms.Type: GrantFiled: September 6, 2005Date of Patent: November 27, 2007Assignee: Toshiba Tec Kabushiki KaishaInventors: Masashi Hiroki, Takaya Kitawaki, Hiroshi Kiyomoto
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Patent number: 7297194Abstract: Ink jet ink which sufficiently suppresses curling phenomenon of printed matters and satisfies ejection stability, the ink comprising at least water, a colorant, a water-soluble organic compound 1 and a water-soluble organic compound 2, wherein the content X(%) of the water-soluble organic compound 1 is 10 mass % or more based on the total amount of the ink jet ink and the content X(%) of the water-soluble organic compound 1 and the content Y(%) of the water-soluble organic compound 2 based on the total amount of the ink jet ink satisfy the relation of the following formula (I) and formula (II): 0<Y/X?0.9, ??(I) X+Y?15 mass %, ??(II) and wherein the water-soluble organic compound 1 is a water-retentive, water-soluble organic compound having a difference between the water retention ability in an environment of a temperature of 23° C. and a humidity of 45% and the water retention ability in an environment of a temperature of 30° C.Type: GrantFiled: September 7, 2005Date of Patent: November 20, 2007Assignee: Canon Kabushiki KaishaInventors: Kenji Shinjo, Koromo Shirota, Yutaka Kurabayashi, Minako Kawabe
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Patent number: 7297201Abstract: Disclosed is an ink jet ink composition that forms indelible images on porous or semiporous substrates. The ink composition comprises a liquid carrier, a first colorant that is soluble in the carrier but insoluble or substantially insoluble in water, and a second colorant composition comprising a pigment, the second colorant composition being dispersible in the carrier. The second colorant composition is insoluble or substantially insoluble in the carrier. The images are difficult or impossible to remove or wash out by the use of aqueous and/or nonaqueous liquids.Type: GrantFiled: January 6, 2005Date of Patent: November 20, 2007Assignee: Videojet Technologies Inc.Inventors: Steven D. Looman, John P. Folkers
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Patent number: 7297203Abstract: An ink to be used in an ink jet recording method of ejecting an ink from a recording head through action of thermal energy can improve the ink ejection stability and shows a high storage stability and a high color developability. An ink to be used in an ink jet recording method of ejecting an ink from a recording head through action of thermal energy is characterized in that the ink comprises a pigment represented by the general formula (1), a dispersant, a water-soluble organic compound and an aggregation inhibiting substance for inhibiting aggregation after dispersion breakdown of the pigment, and the content (mass %) of the aggregation inhibiting substance with respect to the total mass of ink is 0.4 times or more to less than 1.Type: GrantFiled: April 24, 2006Date of Patent: November 20, 2007Assignee: Canon Kabushiki KaishaInventors: Yoichi Takada, Nobuyuki Matsumoto, Itaru Tsuji, Yuko Takada, Shinichi Hakamada, Sadayuki Sugama, Masashi Tsujimura, Fumiaki Fujioka
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Patent number: 7296885Abstract: It is an object to provide a liquid composition for ink jet which contains at least an organic acid having an acid dissociation constant pKa of 4.5 or less, a water-soluble solvent, and water, further including at least one of compounds selected from the following group, and this is utilized for an ink set for ink jet, an ink jet recording method and an ink jet recording apparatus, (a): a polyvalent metallic salt having an amount of addition to the organic acid which is equal to or more than 0.01 and is less than 1 in a mole ratio (the polyvalent metallic salt/organic acid); and (b): an organic amine compound having an amount of addition to the organic acid which is equal to or more than 0.1 and is equal to or less than 0.9 in a mole ratio (an organic amine compound/organic acid).Type: GrantFiled: February 2, 2005Date of Patent: November 20, 2007Assignee: Fuji Xerox Co., Ltd.Inventor: Takatsugu Doi
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Patent number: 7294184Abstract: Provided is an ink jet ink containing a coloring material having a buffer region in an ink use range, the ink jet ink being capable of suppressing the occurrence of the deterioration (dissolution) of a heating portion surface in contact with liquid; and the disconnection of wiring for applying a voltage to a heating portion even when long term continuous printing is performed. The ink jet ink is used for an ink jet recording apparatus equipped with a recording head having a heating portion surface in contact with liquid comprising a metal and/or a metal oxide. The ink jet ink contains a coloring material in a content (mass %) of 3 mass % or more with respect to the total mass of the ink jet ink. The coloring material is a colorant having a buffer region in an ink use range, and comprises a compound represented by the following general formula (I) and/or a compound represented by the following general formula (II) H(OCH2CH2)pR5.Type: GrantFiled: December 30, 2005Date of Patent: November 13, 2007Assignee: Canon Kabushiki KaishaInventors: Kuniaki Fujimoto, Shin-ichi Sato, Jun Yoshizawa, Yoshihide Aikawa, Kunihiko Nakamura, Masanori Jinnou
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Patent number: 7291209Abstract: The present invention relates to inks for silk-screen printing technique, as well as the corresponding printing technique, designed to bestow upon the reproduction obtained by means of the use of said inks on an appropriate substrate, preferably of a paper type, a particular feel, preferably a particular roughness or coarseness. In particular, the present invention relates to an ink for silk-screen printing of catalogues or advertising leaflets for products designed for decorative wall coatings that will reproduce also the feel of the final decoration applied on the wall substrate.Type: GrantFiled: July 23, 2004Date of Patent: November 6, 2007Assignee: Candis S.R.L.Inventor: Alberto Gilli
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Patent number: 7288144Abstract: A non-aqueous ink-jet ink composition contains at least a pigment, a solvent, and a dispersing agent. The non-aqueous ink-jet ink composition further contains a chelating agent, which is soluble in the solvent. The chelating agent may be a crown ether and/or a cryptand, which acts as a neutral carrier. Alternatively, the chelating agent may be at least one chelating agent acting as an ionic carrier, which is selected from the group consisting of GEDTA, BAPTA, and DTPA. The non-aqueous ink-jet ink composition has good storage stability and good jetting-out performance through suppression of occurrence of sediments due to a change with the passage of time.Type: GrantFiled: April 8, 2005Date of Patent: October 30, 2007Inventors: Shunsuke Uozumi, Yasuo Yamamoto
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Patent number: 7285161Abstract: A water base pigment ink for ink-jet recording contains a pigment, water, and at least one of polyethylene glycol and diglycerol. The ink is solidified into a solid matter when the water is evaporated. Further, the solid matter is redissolved in the unsolidified water base pigment ink for ink-jet recording. When the ink is used, then neither clog-up of a nozzle nor discharge failure is caused, no load is imposed by the solidified ink on the maintenance system such as the wiping equipment, and the sticking performance on the paper is satisfactory.Type: GrantFiled: July 22, 2003Date of Patent: October 23, 2007Assignee: Brother Kogyo Kabushiki KaishaInventors: Hideto Yamazaki, Michiko Aoyama, Yoshito Toyoda, Mayuko Okada, Tatsunosuke Hoshi, Masaya Fujioka, Shunichi Higashiyama
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Publication number: 20070242120Abstract: An ink composition is provided that includes a compound represented by Formula (I) or (II). (In Formulae (I) and (II), R1 and R2 independently denote a monovalent substituent, R3 to R6 independently denote a hydrogen atom or a monovalent substituent, n denotes an integer of 0 to 5, and n? denotes an integer of 0 to 5; n and n? are not both 0, when n is 2 or greater a plurality of R1s may be identical to or different from each other, and when n? is 2 or greater a plurality of R2s may be identical to or different from each other.) There are also provided an inkjet recording method employing the ink composition, and a process for producing a lithographic printing plate, the process including discharging the ink composition onto a hydrophilic support. A printed material and a lithographic printing plate thus obtained are also included in the present invention.Type: ApplicationFiled: April 13, 2007Publication date: October 18, 2007Applicant: FUJIFILM CorporationInventors: Tomotaka Tsuchimura, Tetsunori Matsushita
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Patent number: 7276113Abstract: This invention relates to a surface-modified pigment having at least two surface-active agents chemically immobilized onto the surface of the pigment. The first surface-active agent has an HLB of about 10 or more, the second surface-active agent has an HLB of 9 or less, and the difference in HLB between the first and second surface-active agents is at least about 5. The surface-modified pigments are self emulsifying and are applicable for use in water-based cosmetic systems and toiletry products.Type: GrantFiled: April 7, 2005Date of Patent: October 2, 2007Assignee: U.S. Cosmetics CorporationInventors: Mark G. Le Page, William Zavadoski, Shigeru Kishida, Yoshiaki Kawasaki
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Publication number: 20070219291Abstract: An inkjet ink includes at least colorant particles, a water-soluble organic solvent, and water, wherein each of the colorant particles has a core particle and a coating layer formed around it or adsorbed particles on the surface thereof and the core particle contains a resin material having a glass transition temperature (Tg) of 75° C. or lower.Type: ApplicationFiled: August 15, 2006Publication date: September 20, 2007Inventors: Takatsugu Doi, Ken Hashimoto
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Patent number: 7270699Abstract: The invention provides an ink set for ink-jet recording that is able to form an image having a sufficient optical density and causing no feathering and intercolor bleed within a short period of time while being excellent in reliability of the maintenance unit. The ink set comprises at least a liquid (a) containing a colorant, water soluble solvent and water; a liquid (b) containing a pH adjusting agent, water soluble solvent and water; and a liquid (c). The ink set satisfies any one of the conditions in the first embodiment: (i) the colorant is anionic, (ii) the liquid (b) has a pH of not higher than 6.5, (iii) the liquid (c) has a pH of not lower than 8.0, and (iv) the mixed liquid of the liquid (b) and the liquid (c) in a mass ratio of 1:1 has a pH of not lower than 7; or the second embodiment: (i) the colorant is cationic, (ii) the liquid (b) has a pH of not lower than 8.5, (iii) the liquid (c) has a pH of not higher than 6.Type: GrantFiled: September 1, 2004Date of Patent: September 18, 2007Assignee: Fuji Xerox Co., Ltd.Inventor: Takatsugu Doi
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Publication number: 20070204761Abstract: Disclosed is a water based ink composition for a rollerball pen that includes at a least colorant, a water-soluble organic solvent, water, a shear thinning viscosity property-providing agent, a lubricant, and a bubble suppressant. The ink composition includes a phosphate-ester based surfactant having a structure of general formula 1 as the lubricant, and an erythorbic acid or a derivative thereof as the bubble suppressant (n represents an integer of 1 or more, R represents an alkyl group having carbon numbers of 12 to 15, and R? represents H or R—(C2H4O)n—).Type: ApplicationFiled: March 2, 2007Publication date: September 6, 2007Applicant: KABUSHIKI KAISHA PILOT CORPORATIONInventor: Yasuyuki Sugimoto
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Patent number: 7264664Abstract: An ink composition is manufactured to contain a surfactant having difference d1 (?10??) which is difference between dynamic surface tension (?10) of the solution obtained by making 0.1 wt % solution dissolved in purified water to be measured by using a maximum bubble pressure method at the bubble frequency of 10 Hz at a temperature from 24° C. to 26° C. and static surface tension (?) to be measured at a temperature from 24° C. to 26° C. and which satisfies 0 mN/m?d1?15 mN/m. An image is recorded by applying a voltage to partitions made of a piezoelectric material thereby applying a pressure to the ink composition supplied from an ink tank to an ink chamber of an ink head to discharge a liquid droplet of the ink composition, and depositing the liquid droplet onto a recording material.Type: GrantFiled: November 17, 2003Date of Patent: September 4, 2007Assignee: Sharp Kabushiki KaishaInventors: Takanori Kamoto, Kiyofumi Morimoto, Hiromi Nakatsu, Masanori Kinomoto, Hiroaki Nakaya
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Publication number: 20070186812Abstract: According embodiments of the present disclosure, a water-based ink set for ink-jet recording is provided. The ink set may contain a black ink, a cyan ink, a magenta ink and a yellow ink. Each ink may contain a polyoxyethylene alkyl ether sulfonate.Type: ApplicationFiled: February 15, 2007Publication date: August 16, 2007Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Narumi Koga, Masaya Fujioka, Kazuma Goto, Shunichi Higashiyama
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Publication number: 20070182796Abstract: An ink-jet ink comprising Component (A), Component (B), and Component (C), wherein a content of Component (A) is 20-60% by weight, a content of Component (B) is 10-50% by weight, and when the content of Component (A) is 100% by weight, the total content ratio of a class of glycol, a class of polyol, and glycerin is 0-20% by weight, and a surface tension of the ink-jet ink is 18-27 mN/m; wherein Component (A) is 1,3-dimethyl-2-imidazolidinone or ?-butyrolactone, Component (B) is water, and Component (C) is a pigment.Type: ApplicationFiled: February 1, 2007Publication date: August 9, 2007Applicant: KONICA MINOLTA HOLDINGS, INC.Inventors: Kenichi OHKUBO, Hisato KATO, Makoto KAGA, Yoshinori TSUBAKI, Kumiko FURUNO
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Patent number: 7252709Abstract: The invention detailed herein comprises a family of multifunctional acrylate oligomers which are useful as pigment grinding vehicles for use in radiation-curable coating formulations. The multifunctional acrylate resins are formed by the reaction of acrylate monomers and oligomers with ?-keto esters (e.g., acetoacetates), ?-diketones (e.g., 2,4-pentanedione), ?-keto amides (e.g., acetoacetanilide, acetoacetamide), and/or other ?-dicarbonyl compounds or Michael “donors” that can participate in the Michael addition reaction. These resin vehicles have a built-in chromophore that enables ink formulations made from their dispersions to cure under standard UV-cure conditions with significantly less photoinitiator than commercial formulations. The resins also exhibit excellent pigment wetting characteristics and can be designed to function as a single dispersion vehicle for different pigments and different ink applications such as screen, flexographic, and lithographic printing.Type: GrantFiled: October 14, 2003Date of Patent: August 7, 2007Assignee: Ashland Licensing and Intellectual Property LLCInventors: Sridevi Narayan-Sarathy, Lisa M. Hahn, Michael Gould
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Publication number: 20070176991Abstract: An ink composition which comprises a compound represented by formula (1), which is described in the specification; and a plurality of water-soluble organic solvents, wherein the water-soluble organic solvents contains at least a water-soluble organic solvent having a thioether or sulfoxide moiety in an amount of 10 mass % to 80 mass %, and a recording method which uses the ink composition.Type: ApplicationFiled: February 1, 2007Publication date: August 2, 2007Applicant: FUJIFILM CorporationInventor: Yoshimitsu Arai
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Patent number: 7250077Abstract: An aggregation stabilizer is further added to an ink composition for inkjet recording which contains a colorant, a humectant, water, and a water-soluble substance that is condensation-polymerized in the absence of the water. With this aggregation stabilizer, a hardly-soluble or insoluble component formed by the colorant and the water-soluble substance is modified so as to be readily dissolved in water, whereby generation of an aggregate in the ink is prevented.Type: GrantFiled: May 19, 2003Date of Patent: July 31, 2007Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Hidekazu Arase, Mamoru Soga
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Patent number: 7247192Abstract: A water base ink for ink-jet recording is provided, which makes it possible to secure a high recording quality with a sharp image area edge by avoiding any blurring even when recording is performed on regular paper and which has satisfactory purge restoration performance. Therefore, no bubble remains in an ink flow passage, and no discharge failure is caused. Further, the discharge operation never becomes unstable. In the water base ink for ink-jet recording, the surface tension is not less than 40 mN/m, and the amount of dissolved oxygen is not more than 4 mg/L.Type: GrantFiled: August 21, 2003Date of Patent: July 24, 2007Assignee: Brother Kogyo Kabushiki KaishaInventors: Hideo Ohira, Hiromitsu Sago, Kazuma Goto, Narumi Koga, Masaya Fujioka, Shunichi Higashiyama
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Patent number: 7247193Abstract: A second ink to be used in combination with a first ink for use in an ink jet recording apparatus having a first opening to which the first ink is supplied, a second opening to which the second ink is supplied, and a cover member with which the first opening and the second opening are covered to form a closed space, the first ink having a molar fraction of water of N (%) to a water soluble compound having a molecular weight of 300 or less, in which the second ink has a molar fraction of water that is different from N (%) and is N?5 (%) or more and N+5 (%) or less.Type: GrantFiled: January 31, 2006Date of Patent: July 24, 2007Assignee: Canon Kabushiki KaishaInventor: Shin-ichi Sato
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Patent number: 7247197Abstract: A water base ink for ink-jet recording is provided, which is excellent in time-dependent stability of ink characteristics, which can be stably jetted over a long period of time, and which makes it possible to perform the high quality recording. The water base ink for ink-jet recording contains a self-dispersing type water-insoluble particulate coloring agent, a compound represented by the following formula (1), a surfactant having a nitrogen atom in a molecule, water, and a water-soluble organic solvent, wherein a surface tension is 30 to 50 mN/m, and a ratio of change of the surface tension after storage at 60° C. for 2 weeks is less than 5%: R1—O—(CH2CH2O)x—SO3Na??(1) wherein R1 represents an alkyl group and x is 20 to 30 in the formula (1).Type: GrantFiled: September 22, 2003Date of Patent: July 24, 2007Assignee: Brother Kogyo Kabushiki KaishaInventors: Kazuma Goto, Hideo Ohira, Yoshito Toyoda, Mayuko Okada, Masaya Fujioka, Shunichi Higashiyama
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Patent number: 7247198Abstract: A water base ink for ink-jet recording to be used for an ink-jet recording apparatus having an ink-jet head comprises a self-dispersing type coloring agent, water, and a water-soluble organic solvent. The surface tension of the ink is 30 to 50 mN/M, the advancing contact angle with respect to the jetting surface of the ink-jet head is not less than 65°, the receding contact angle is not less than 55°, and the difference between the advancing contact angle and the receding contact angle is not more than 20°. It is possible to jet the ink stably, it is possible to form a sharp recorded image with less blur, and it is possible to obtain the recorded image excellent in water resistance.Type: GrantFiled: March 19, 2003Date of Patent: July 24, 2007Assignee: Brother Kogyo Kabushiki KaishaInventors: Masaya Fujioka, Akihiko Taniguchi, Shunichi Higashiyama
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Patent number: 7247199Abstract: Food grade ink jet inks which include food grade pigments, food grade lower alcohols, 1,2-propanediol, and shellacs are provided. Also provided are methods for making the ink jet inks and edible substrates having the food grade ink jet inks applied to a surface thereof. In some embodiments, the food grade ink jet inks contain at least about 20 wt. % propanediol.Type: GrantFiled: August 13, 2004Date of Patent: July 24, 2007Inventors: Robert A. Baydo, Michael Bogomolny, Constance L. Lee
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Patent number: 7241335Abstract: The invention provides an aqueous ink composition for ball-point pens excellent in both the lubricity for an aqueous ballpoint pen tip and the bleed resistance of writing.Type: GrantFiled: October 25, 2004Date of Patent: July 10, 2007Assignee: Sakura Color Products CorporationInventors: Atsushi Ito, Naoshi Murata, Yumi Hirose
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Publication number: 20070153072Abstract: A water-based ink for ink-jet recording contains water, a water-soluble organic solvent, a coloring agent and a crown ether. Even when the water-based ink is employed in the ink passage of an ink-jet recording apparatus and comes into contact with rubber members employed in the ink passage, the occurrence of precipitation is prevented.Type: ApplicationFiled: December 1, 2006Publication date: July 5, 2007Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Kazuma Goto, Noriaki Satoh, Junichiro Sugimoto
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Patent number: 7235126Abstract: An ink jet recording ink is provided containing water, a pigment that is self-dispersible in water, a water-soluble organic solvent, and a nonionic polymer of which the amount is preferably in a range of about 5% by mass to about 200% by mass relative to the total mass of the pigments. The nonionic polymer is preferably selected from a group consisting of polyvinyl alcohol, polyvinyl pyrrolidone, polyacrylamide, poly N-vinyl acetamide, and the like. The absolute value of zeta potential of the ink is preferably in the range of about 5 mV to about 30 mV.Type: GrantFiled: June 18, 2004Date of Patent: June 26, 2007Assignee: Fuji Xerox Co., Ltd.Inventors: Mihoko Tani, Toshitake Yui, Ken Hashimoto
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Patent number: 7232480Abstract: There are provided a carbon black according to which long-term stable storage is possible, clogging is not prone to occurring, and the OD value is high and hence printing with a deep black color is possible, or a carbon black that can be used in a water-based ink that is used in ink jet printer printing, that has low settleability and can thus be stored stably for a long period, for which clogging is not prone to occurring, and for which the reflection density is high and hence printing with a high printing density and a deep black color is possible, a carbon black dispersion having the carbon black dispersed therein, and a water-based ink containing the carbon black.Type: GrantFiled: December 26, 2003Date of Patent: June 19, 2007Assignees: Seiko Epson Corporation, Orient Chemical Industries, Ltd.Inventors: Masayuki Momose, Miharu Kanaya, Sohko Itoh, Tatsuya Yagyu
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Patent number: 7229489Abstract: A water-color ink with which a high print quality can be obtained on ordinary paper, recycled paper or coated paper, and which has excellent storage stability. The water-color ink includes at least a color material and 2-butyl-2-ethyl-1,3-propanediol.Type: GrantFiled: July 11, 2005Date of Patent: June 12, 2007Assignee: Seiko Epson CorporationInventor: Masahiro Yatake
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Patent number: 7229488Abstract: An ink composition includes a colorant, a solvent, and an amine alcohol compound represented by formula I in which n is an integer and 0?n?9.Type: GrantFiled: August 1, 2006Date of Patent: June 12, 2007Assignee: Samsung Electronics Co., Ltd.Inventor: Jong-in Lee
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Patent number: 7223805Abstract: A 2-methoxyphenol derivative may be used as an ultraviolet (UV) light absorbing dispersant and, an ink composition may include the 2-methoxyphenol derivative as a light-resistant dispersant. The 2-methoxyphenol derivative absorbs UV light and thus provides light resistance to outputs. The 2-methooxyphenol derivative also improves dispersibility. When the 2-methoxyphenol derivative is used to prepare an ink composition, the ink composition has improved dispersibility and light resistance, and there is no need to add a light-resistant additive.Type: GrantFiled: December 2, 2003Date of Patent: May 29, 2007Assignee: Samsung Electronics Co., Ltd.Inventors: Yeon-Kyoung Jung, Seung-min Ryu
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Patent number: 7220301Abstract: Disclosed herein is an ink comprising (i) first and second organic compounds which are incompatible with each other; (ii) at least one of a compound exhibiting fluorescence properties and a coloring material exhibiting fluorescence properties; and (iii) a liquid medium dissolving or dispersing the components (i) and (ii) therein.Type: GrantFiled: July 30, 2003Date of Patent: May 22, 2007Assignee: Canon Kabushiki KaishaInventors: Akira Nagashima, Shinichi Hakamada
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Patent number: 7220304Abstract: The present invention provides a water-based ink that is used in ink jet printer printing, with a writing instrument, or the like, that has a low settling rate and for which clogging is not prone to occurring, that can be stored stably for a long period without the viscosity or the carbon black particle diameter increasing, and for which printing with a deep black color and a high print density is possible, and a modified carbon black dispersion used for preparing this water-based ink. The present invention is a liquid having dispersed therein a modified carbon black obtained by subjecting a carbon black raw material powder to oxidation treatment, wherein the modified carbon black has on the surface thereof (a) carboxyl groups, and (b) lactone groups in a molar amount of at least 500 ?mol/g relative to the weight of the modified carbon black and a molar ratio of 0.8 to 1.1 times the amount of the carboxyl groups.Type: GrantFiled: April 23, 2004Date of Patent: May 22, 2007Inventors: Masayuki Momose, Miharu Kanaya, Sohko Itoh, Tatsuya Yagyu
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Patent number: 7214260Abstract: The present invention provides an ink set for ink jet recording using at least two kinds of liquids. The first liquid contains at least a colorant, a water soluble solvent and water, and the second liquid contains at least a compound represented by the following general formula (1), a water soluble solvent and water.Type: GrantFiled: June 4, 2004Date of Patent: May 8, 2007Assignee: Fuji Xerox Co., Ltd.Inventors: Takatsugu Doi, Chizuru Koga, Takashi Ogino, Kiyoshi Hosoi, Tsukasa Matsuda
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Patent number: 7214261Abstract: Fatty acid esters of which the fatty acid constituents are fatty acids containing a total of 12 to 22 carbon atoms and of which the alcohol constituents are saturated and/or mono- or polyolefinically unsaturated monoalcohols containing a total of 1 to 22 carbon atoms, with the additional proviso that the fatty acid constituents of the esters contain saturated and/or mono- or polyolefinically unsaturated fatty acids and have a branched structure, isostearic acid being excluded as the fatty acid constituent of the esters, are suitable as solvents for printing inks.Type: GrantFiled: September 30, 2004Date of Patent: May 8, 2007Assignee: Cognis Deutschland GmbH & Co. KGInventors: Rainer Hoefer, Matthias Fies, Alfred Westfechtel, Shailesh Shah