With Pigment Patents (Class 106/31.28)
  • Patent number: 10875987
    Abstract: A method of determining the composition of a polymeric body includes applying electromagnetic radiation to the polymeric body, modulating the electromagnetic radiation using a tagant disposed within a polymer composition forming the polymeric body, and receiving the modulated electromagnetic radiation from the tagant at an infrared detector. The electromagnetic radiation received from the tagant has a signature corresponding to the polymer composition forming the polymeric body. A method of making a polymeric body and system for determining composition of a polymeric body are also described.
    Type: Grant
    Filed: May 1, 2019
    Date of Patent: December 29, 2020
    Assignee: Sensors Unlimited, Inc.
    Inventor: Douglas Stewart Malchow
  • Patent number: 10836921
    Abstract: An aqueous ink for ink jet includes a coloring material, a solvent, and a surfactant having an HLB value of 9.0 or less. The solvent includes a solvent A having a solubility in water at 20° C. of 5.00 g/100 g-H2O or less and a solvent B other than the solvent A. The solvent A includes an alcohol having a vapor pressure at 20° C. of 0.5 mmHg or less and a surface tension of 30.0 mN/m or more. The content of the alcohol in the aqueous ink is 0.7 or more times the solubility in water at 20° C. in an equal amount to the aqueous ink. The solvent B has a partition coefficient (PB) satisfying the following equation (1). 1.44 Log PA?0.1x?3.4?Log PB??0.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: November 17, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akihiro Taya, Masahiro Terada, Hidetaka Kawamura, Yohei Masada, Masanobu Ootsuka, Takaharu Aotani, Yutaka Yoshimasa, Shoji Koike
  • Patent number: 10800935
    Abstract: Described herein are metallic pigment-containing inks having a magnitude of exotherm <1200 J/g, or no observable exotherm at all. Also described are metallic pigment-containing inks that include 9.0 wt % or less nitrocellulose resin, or which are essentially free of nitrocellulose resin. Further described are articles printed with the described metallic pigment-containing inks, kits including such inks (and other inks), and methods of printing with such inks. The metallic pigment-containing ink described herein reduce, if not eliminate, the tendency of inks containing metallic pigments to spark and combust.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: October 13, 2020
    Assignee: Sun Chemical Corporation
    Inventors: Russell Schwartz, Tom DeBartolo, Steven Johnson
  • Patent number: 10800937
    Abstract: The present invention relates to [1] a process for producing a pigment water dispersion, including step 1 of mixing a water dispersion (A) formed by dispersing a pigment (I) with a water-dispersible polymer and a water dispersion (B) of a self-dispersible pigment (II) to obtain a water dispersion (C); and step 2 of subjecting the water dispersion (C) obtained in the step 1 to heat treatment at a temperature of not lower than 40° C. to obtain the pigment water dispersion, and [2] a pigment water dispersion containing a pigment (I) dispersed with a water-dispersible polymer and a self-dispersible pigment (II), in which the water-dispersible polymer is adsorbed onto the pigment (I) and the self-dispersible pigment (II).
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: October 13, 2020
    Assignee: KAO CORPORATION
    Inventors: Satoshi Tanaka, Takeshi Ashizawa, Teruyuki Fukuda
  • Patent number: 10759956
    Abstract: The present invention relates to [1] a process for producing a pigment water dispersion, including step 1 of mixing a water dispersion (A) formed by dispersing a pigment (I) with a water-dispersible polymer and a water dispersion (B) of a self-dispersible pigment (II) to obtain a water dispersion (C); and step 2 of subjecting the water dispersion (C) obtained in the step 1 to heat treatment at a temperature of not lower than 40° C. to obtain the pigment water dispersion, and [2] a pigment water dispersion containing a pigment (I) dispersed with a water-dispersible polymer and a self-dispersible pigment (II), in which the water-dispersible polymer is adsorbed onto the pigment (I) and the self-dispersible pigment (II).
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: September 1, 2020
    Assignee: KAO CORPORATION
    Inventors: Satoshi Tanaka, Takeshi Ashizawa, Teruyuki Fukuda
  • Patent number: 10676627
    Abstract: An ink jet ink composition includes one or two or more compounds A selected from the group consisting of a compound represented by Formula (1) and a compound represented by Formula (4), one or two or more compounds B selected from the group consisting of a compound represented by Formula (2), a compound represented by Formula (3), and a compound represented by Formula (5), and water, (in Formula (1) to Formula (5), R each independently represents NZ2 or OZ; R? each independently represents a hydrogen atom, a sulfate group, or a sulfate; X each independently represents a hydroxyl group or a hydroxide salt; Y each independently represents a hydrogen atom, a hydroxyl group, or a hydroxide salt; and Z each independently represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms).
    Type: Grant
    Filed: January 24, 2018
    Date of Patent: June 9, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Masayuki Murai, Hidehiko Komatsu, Hiroyuki Kaneko
  • Patent number: 10656090
    Abstract: A fluorescence intensity calculating apparatus, includes a measuring section configured to receive fluorescences generated from plural fluorescent dyes excited by radiating a light to a microparticle multiply-labeled with the plural fluorescent dyes having fluorescence wavelength bands overlapping one another by photodetectors which correspond to different received light wavelength bands, respectively, and whose number is larger than the number of fluorescent dyes, and obtain measured spectra by collecting detected values from the photodetectors, and a calculating section configured to approximate the measured spectra based on a linear sum of single-dyeing spectra obtained from the microparticle individually labeled with the fluorescent dyes, thereby calculating intensities of the fluorescences generated from the fluorescent dyes, respectively.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: May 19, 2020
    Assignee: Sony Corporation
    Inventors: Yasunobu Kato, Yoshitsugu Sakai
  • Patent number: 10640665
    Abstract: A pigment ink composition that exhibits good ejectability, particularly after standing in an open environment, and an inkjet textile printing method and a dyeing method using the ink composition. The ink composition for inkjet textile printing includes a pigment, water, a polymeric dispersant, a urethane resin, a water-soluble organic solvent, and a nonionic surfactant.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: May 5, 2020
    Assignee: NIPPON KAYAKU KABUSHIKI KAISHA
    Inventors: Motohiro Seki, Hiroko Higuchi
  • Patent number: 10494535
    Abstract: A near-infrared absorbent dispersion includes water, a near-infrared absorbent, and a resin dispersant, wherein a weight ratio of the near-infrared absorbent to the total weight of the near-infrared absorbent and the resin dispersant is more than 0.01 and less than 0.33.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: December 3, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Mamoru Fujita, Kazuhiko Hirokawa, Yoshiro Yamashita
  • Patent number: 10364366
    Abstract: There is provided a water-based ink for ink-jet recording containing: water; at least one of quinacridone and a derivative thereof; and a dye represented by the following formula (1).
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: July 30, 2019
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Satoshi Okuda, Mitsunori Maeda, Yuki Okumura
  • Patent number: 10259950
    Abstract: The present disclosure provides a coated structure for forming a hydrophilic film on a surface. The coated structure includes a carrier substrate and a superhydrophilic material layer. The carrier board has a surface, and the superhydrophilic material layer is coated on the surface of the carrier board. The superhydrophilic material layer is composed of a zwitterionic compound having a chemical formula of (I): wherein R1 and R2 are individually hydrogen or a C1-C5 alkyl group, and n is an integer of 1-20. A method for antifouling treatment using a coated layer and a method for fouling-resistant treatment using a coated layer are also provided herein.
    Type: Grant
    Filed: July 16, 2015
    Date of Patent: April 16, 2019
    Assignee: National Central University
    Inventor: Chun-Jen Huang
  • Patent number: 10259962
    Abstract: There is provided a printed medium manufacturing method for manufacturing a printed medium by performing printing with ink with respect to a permeable medium, which is a recording medium that permeates the ink, the method including an ink attaching process of attaching the ink to the permeable medium, a pigment fixing process of fixing a pigment in the ink to the permeable medium with a binder resin in the ink by heating the ink attached to the permeable medium in the ink attaching process, and a dye color developing process of causing the permeable medium itself to develop color with the dye in the ink by heating the ink attached to the permeable medium in the ink attaching process.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: April 16, 2019
    Assignee: MIMAKI ENGINEERING CO., LTD.
    Inventor: Masaru Ohnishi
  • Patent number: 10118848
    Abstract: A method for inhibiting silica scale formation in an aqueous system by adding an amine-terminated polyoxyalkylene anti-scalant to the water used in the aqueous system.
    Type: Grant
    Filed: June 2, 2015
    Date of Patent: November 6, 2018
    Assignees: Dow Global Technologies LLC, Rohm and Haas Company
    Inventors: Somil Chandrakant Mehta, Alain DuFour
  • Patent number: 9966609
    Abstract: Disclosed is a process for making a gas diffusion electrode that comprises an electrically conductive substrate, a gas diffusion layer (GDL) and an active layer (AL). The process comprises forming the GDL and/or the AL by pressing and/or rolling a mass obtained by subjecting electrically conductive carbon material and polymeric binder and, in the case of the AL, electroactive catalyst to high energy mixing in a liquid medium, followed by the separation of solid matter from the liquid medium and, optionally, drying of the separated solid matter.
    Type: Grant
    Filed: June 19, 2014
    Date of Patent: May 8, 2018
    Assignee: GENCELL LTD.
    Inventors: Gennadi Finkelshtain, Konstantin Petrov, Nino Borchtchoukova, Yevgeniya Pashkevich
  • Patent number: 9765230
    Abstract: An ink composition contains water, a coloring material, a surfactant, a slightly water-soluble 1,2-alkanediol having a carbon number of 7 to 10 and a melting point in the range of 30° C. to less than 80° C., and a water-soluble symmetrical both-end alkanediol having a melting point of 80° C. or more.
    Type: Grant
    Filed: July 19, 2016
    Date of Patent: September 19, 2017
    Assignee: Seiko Epson Corporation
    Inventor: Shuichi Koganehira
  • Patent number: 9625615
    Abstract: Disclosed is a non-aqueous dispersant which is excellent in dispersibility and dispersion stability and able to form a resin layer with excellent hydrolysis resistance; a color material dispersion liquid containing the non-aqueous dispersant; and a color resin composition containing the non-aqueous dispersant.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: April 18, 2017
    Assignee: DAI NIPPON PRINTING CO., LTD.
    Inventors: Michihiro Ogura, Tomoki Murata, Hiroaki Segawa
  • Patent number: 9617441
    Abstract: An ink set including at least a yellow ink, a magenta ink, a cyan ink, and a black ink and that each contain water, a surfactant, and a colorant. When each of the surfactant contents in each of the total masses of the yellow ink, the magenta ink, the cyan ink, and the black ink is represented respectively by S1, S2, S3, and S4, S1 satisfies 1.0 mass %?S1?2.5 mass %, S1-S2 satisfies 0.1 mass %?S1-S2?0.8 mass %, S3-S2 satisfies 0.0 mass %?S3-S2?0.5 mass %, S3-S4 satisfies 0.2 mass %?S3-S4?1.2 mass %, and S3 and S4 are each 0.1 mass % or more.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: April 11, 2017
    Assignee: NIPPON KAYAKU KABUSHIKI KAISHA
    Inventors: Maiko Iuchi, Akira Kawaguchi, Toru Ishii
  • Patent number: 9616391
    Abstract: Provided is a black porous polytetrafluoroethylene membrane including a porous polytetrafluoroethylene membrane dyed black. A whiteness of a principal face of the black porous polytetrafluoroethylene membrane as measured according to JIS L 1015 (Hunter method) is 18.0 to 23.0%, and the whiteness of the principal face falls within a range of 18.0 and 25.0% after heating at 350° C. for 1 minute. This black porous PTFE membrane is suitable as a gas-permeable membrane that blocks entry of water and/or dust and that allows permeation of gases; specifically, the black porous PTFE membrane is suitable, for example, as a waterproof sound-transmitting membrane, a waterproof gas-permeable membrane, and a dustproof gas-permeable membrane.
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: April 11, 2017
    Assignee: NITTO DENKO CORPORATION
    Inventors: Masaaki Mori, Yuri Horie
  • Patent number: 9353275
    Abstract: An ink can be substantially invisible under most lighting conditions, and only visible when excited by UV energy having a wavelength specific to the colorant. The ink can include a liquid vehicle and a fluorescent colorant. The fluorescent colorant can have an average particle size of less than about 200 nm. Such ink can be configured as an ink-jet ink.
    Type: Grant
    Filed: November 14, 2007
    Date of Patent: May 31, 2016
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Garold E Radke, Alexander Govyadinov
  • Patent number: 9346967
    Abstract: An ink composition is disclosed that includes: at least one color dye in an amount between and including 1% by weight and 7% by weight; at least one polymeric dispersant in an amount between and including 0.1% by weight and 1% by weight; at least one organic solvent in an amount between and including 18% by weight and 22% by weight; at least one surfactant in an amount between and including 0.5% by weight and 1.5% by weight; at least one buffer in an amount between and including 0.1% by weight and 0.5% by weight; at least one biocide in an amount between and including 0.05% by weight and 0.2% by weight; and the balance being deionized water.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: May 24, 2016
    Assignee: Funai Electric Co., Ltd.
    Inventors: Ajay K. Suthar, Steve Olson, Sam Norasak
  • Patent number: 9340688
    Abstract: The present invention relates to a thermal ink-jet printing method including the step of ejecting a water-based ink including pigment-containing polymer particles from a print head by an action of a thermal energy, in which the polymer constituting the polymer particles includes not less than 78% by mass and not more than 88% by mass of a constitutional unit derived from an acrylic acid ester containing a hydrocarbon group having not less than 3 and not more than 8 carbon atoms, and not more than 22% by mass and not less than 12% by mass of a constitutional unit derived from acrylic acid, on the basis of a total mass of whole constitutional units in the polymer constituting the polymer particles; [2] a water dispersion for thermal ink-jet printing used in the above method; [3] a water-based ink for thermal ink-jet printing including the above water dispersion; and [4] a use of the above ink in a thermal ink-jet printing method.
    Type: Grant
    Filed: April 7, 2014
    Date of Patent: May 17, 2016
    Assignee: KAO CORPORATION
    Inventors: Satoshi Tanaka, Teruyuki Fukuda
  • Publication number: 20150040797
    Abstract: To provide an ink composition for a water-based ballpoint pen, having properties such as excellent writing stability in which writing failure such as starving does not occur. Disclosed is an ink composition for a water-based ballpoint pen, including an aqueous phase, and an oil phase contained in the aqueous phase in a state of an oil-in-water type emulsion, wherein the oil phase, or the oil phase and the aqueous phase contains a colorant, and the oil phase contains, in components composing the oil phase, a fatty acid having 6 to 22 carbon atoms.
    Type: Application
    Filed: March 8, 2013
    Publication date: February 12, 2015
    Applicant: MITSUBISHI PENCIL COMPANY, LIMITED
    Inventors: Hiroyuki Itou, Kousuke Ogura, Yuichi Miyazaki, Yoshihiro Kawakita
  • Publication number: 20150023720
    Abstract: Provided are: an oil-based ink composition for a ball-point pen having a favorable feeling of writing, the favorable deepness of a written trace, favorable light resistance, favorable ink stability over time, and favorable pigment dispersibility; and an oil-based ball-point pen refill using the oil-based ink composition. An oil-based ink composition for a ball-point pen comprising at least a dye, a pigment, and an organic solvent, wherein the dye is at least one salt-forming dye selected from the group consisting of salt-forming dyes of alkylbenzene sulfonic acids and xanthene-based basic dyes, salt-forming dyes of alkylbenzene sulfonic acids and triarylmethane-based basic dyes, and salt-forming dyes of alkylbenzene sulfonic acids and azomethine-based basic dyes.
    Type: Application
    Filed: March 1, 2013
    Publication date: January 22, 2015
    Applicant: Kabushiki Kaisha Pilot Corporation
    Inventor: Takeshi Fujii
  • Patent number: 8895639
    Abstract: An ink set is provided which includes a first ink containing a first pigment, water, and a glycol ether having an HLB value, measured by Davies method, in the range of 4.2 to 8.0, and a second ink substantially not containing the glycol ether. The second ink contains a second pigment and water.
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: November 25, 2014
    Assignee: Seiko Epson Corporation
    Inventors: Takeshi Yano, Tetsuya Aoyama, Shoki Kasahara
  • Publication number: 20140287205
    Abstract: A phase change ink composition including an amorphous compound; a crystalline compound; an optional synergist; an optional dispersant; and a white colorant having a volume average particle size of from about 25 nanometers to less than 200 nanometers.
    Type: Application
    Filed: March 19, 2013
    Publication date: September 25, 2014
    Applicant: Xerox Corporation
    Inventors: Naveen Chopra, Srinivasa Rangaraj Deshiikan, Daryl W. Vanbesien, Gabriel Iftime, Daniel Mark Platt
  • Patent number: 8821623
    Abstract: A non-aqueous inkjet ink including at least a pigment, a dye and organic solvents, wherein the total amount of the pigment and the dye is at least 3 mass % relative to the total amount of the ink, the content ratio of the pigment to the dye is in the range from 7:3 to 4:6, the pigment has a DBP oil absorption in the range from 60 cm3/100 g to 140 cm3/100 g, and the organic solvents include at least two organic solvents including an organic solvent with an ? value of at most 10 and an organic solvent with an ? value of at least 30.
    Type: Grant
    Filed: October 31, 2012
    Date of Patent: September 2, 2014
    Assignee: Riso Kagaku Corporation
    Inventor: Kenji Shimomura
  • Patent number: 8808439
    Abstract: A water-soluble phthalocyanine dye or naphthalocyanine dye with near-infrared absorption comprises at least one complexed unit. Each unit comprises a phthalocyanine or a naphthalocyanine moiety and a metal atom complexed thereto and having a valency of at least three, with two valencies complexed to the phthalocynanine ring or the naphthalocyanine ring, each unit joined to another through a fused ring, at least one valency attached to water-soluble axial ligands. The dyes to may be employed in inkjet inks in conjunction with colorants.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: August 19, 2014
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Sivapackia Ganapathiappan, Jayprakash Bhatt
  • Patent number: 8790458
    Abstract: The ink set according to the invention includes a first ink containing water, pigments, and first metal ions as counter-ions of the pigments; and a second ink containing water, specific dyes, and second metal ions as counter-ions of the dyes, in which the maximum equivalent conductivity [S·cm2/eq] of the first metal ions is greater than the maximum equivalent conductivity [S·cm2/eq] of the second metal ions.
    Type: Grant
    Filed: June 27, 2012
    Date of Patent: July 29, 2014
    Assignee: Seiko Epson Corporation
    Inventors: Tomohiro Aruga, Daisuke Ishihara
  • Patent number: 8784548
    Abstract: A water-soluble phthalocyanine dye or naphthalocyanine dye with near-infrared absorption comprises at least one complexed unit. Each unit comprises a phthalocyanine or a naphthalocyanine moiety and, optionally, a metal atom complexed thereto and, if present, having a valency of from 1 to 5, with two valencies complexed to the phthalocyanine ring or the naphthalocyanine ring. Each unit has two linker moieties on opposite sides or adjacent sides of the unit, wherein water-soluble groups are present on at least one of the linkers, on the metal atom, and optionally on the phthalocyanine or naphthalocyanine moiety.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: July 22, 2014
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Sivapackia Ganapathiappan, Jayprakash Bhatt
  • Publication number: 20140198143
    Abstract: A phase change ink composition comprising an amorphous component, a crystalline material, a fluorescent material and optionally, a non-fluorescent colorant, which are suitable for ink jet printing, including printing on coated paper substrates. The novel phase change ink formulation allows the ink to change color when exposed to UV light, reversibly and multiple times, providing an ink suitable for use in security applications.
    Type: Application
    Filed: January 16, 2013
    Publication date: July 17, 2014
    Applicant: XEROX CORPORATION
    Inventors: Gabriel Iftime, Daryl W. Vanbesien, Stephan V. Drappel, Jennifer L. Belelie, Adela Goredema
  • Publication number: 20140176652
    Abstract: A process for preparing a phase change ink including (a) subjecting a white colorant to acoustic mixing at an acceleration of from about 30 to about 110 g; (b) optionally, adding a dispersant and subjecting the white colorant and dispersant to further acoustic mixing at an acceleration of from about 30 to about 110 g; (c) separately melt mixing an optional antioxidant, an optional synergist, and a phase change ink carrier comprising (i) a branched triamide and (ii) a polyethylene wax, a Fischer Tropsch wax, or a mixture or combination thereof, to form a melt mixture; (d) adding the melt mixture of (c) to the acoustically mixed white colorant of (a) or (b) with stirring; (e) optionally, adding a fluorescent dye with stirring; and (d) optionally, filtering the phase change ink.
    Type: Application
    Filed: December 21, 2012
    Publication date: June 26, 2014
    Applicant: XEROX CORPORATION
    Inventors: Salma Falah Toosi, Mihaela Maria Birau, Biby Esther Abraham, Gabriel Iftime, James D. Mayo, C. Geoffrey Allen
  • Patent number: 8710118
    Abstract: A nano-pigment inkjet ink composition that has a low odor and is environmentally-friendly includes, based on total weight of the inkjet ink composition, from 1 to 10 percent by weight of N-ethyl pyrrolidone; from 1 to 20 percent by weight of propylene carbonate; from 50 to 80 percent by weight of a glycol ether solvent; a pigment that is a nano-pigment having a nano-particle size; a dispersant; a resin; a plasticizer; a surfactant; and from 0.1 to 3.0 percent by weight of an acidity regulator that is at least one cyclic tertiary amine compound. This inkjet ink composition meets both environmental and print quality requirements. The composition has a high flash point and includes raw materials having low toxicity and low odor. It has good storage stability, inkjet stability, and good print quality. Printhead nozzles are not easily clogged. The printed image has high gloss, scratch resistance, and weather resistance.
    Type: Grant
    Filed: May 18, 2012
    Date of Patent: April 29, 2014
    Assignee: Jetbest Corporation
    Inventors: Ke-Yung King, Chia-Kuei Ling, Hsiu-hui Liu, Hsueh-Chun Wu
  • Patent number: 8622436
    Abstract: A document uses a chemically reactive security ink to facilitate security, making it more difficult to alter a genuine security document. The chemically reactive security ink masks a warning word or message on a security document. The hidden warning word or message is revealed when the document is subjected to chemical washing.
    Type: Grant
    Filed: May 29, 2007
    Date of Patent: January 7, 2014
    Assignee: The Standard Register Company
    Inventors: Rajendra Mehta, Steven L. Yeager, Stephen D. Webendorfer
  • Patent number: 8608304
    Abstract: A process for forming an image by using an inkjet recording apparatus including printing by using two or more kinds of inks each containing a pigment dispersion containing a pigment and a resin, an organic solvent and water, wherein the printing is conducted by ejecting the inks each having a particle size-change constant within a prescribed range from recording heads in the increasing order of the particle size-change constants, wherein each particle size-change constant is obtained by a prescribed process from the average particle diameters of the pigment included in each ink at mass drying rates in the range of 10 to 40%.
    Type: Grant
    Filed: July 24, 2012
    Date of Patent: December 17, 2013
    Assignee: Kyocera Document Solutions Inc.
    Inventors: Yasuko Takaori, Noriaki Furukawa, Noriaki Ozawa
  • Publication number: 20130284055
    Abstract: A solid ink composition suitable for ink jet printing, including printing on coated paper substrates. In embodiments, the solid ink composition comprises both a crystalline compound and an amorphous compound, and optionally, in combination, an organic pigment, which provides for a robust, rapid crystallization ink composition.
    Type: Application
    Filed: April 26, 2012
    Publication date: October 31, 2013
    Applicant: Xerox Corporation
    Inventors: JENNIFER L. BELELIE, Daryl W. Vanbesien, Gabriel Iftime, Corey L. Tracy, Nathan M. Bamsey, Caroline M. Turek, Naveen Chopra, Kentaro Morimitsu
  • Publication number: 20130286081
    Abstract: Ink sets can include a plurality of aqueous inks. In one embodiment, a first ink can include a magenta dye and a magenta pigment. A second ink can include a cyan pigment, and a third ink can include a yellow pigment, wherein the second and third inks are substantially devoid of dye. The inks can independently include 2-pyrrolidone or 2-hydroxyethyl-2-pyrrolidone and an additional solvent selected from a glycol, a second pyrrolidone, and mixtures thereof. In another embodiment, an aqueous ink-jet ink can comprise a pigment and a liquid vehicle including water, 2-pyrrolidone, 2-hydroxyethyl-2-pyrrolidone, tetraethylene glycol, and 1,6-hexanediol.
    Type: Application
    Filed: April 29, 2008
    Publication date: October 31, 2013
    Inventors: George Sarkisian, Keshava A. Prasad, Heng Siong Low
  • Patent number: 8524795
    Abstract: A radiation curable ink composition has improved adhesion towards rigid recording media, good jetting behavior and no or minimal health and safety risks. The radiation curable ink has a viscosity of 30 mPa·s, or less, at 50° C.
    Type: Grant
    Filed: May 7, 2012
    Date of Patent: September 3, 2013
    Assignee: Oce-Technologies B.V.
    Inventors: Franciscus H. M. Stappers, Peter M. A. Wetjens, Hendrik J. A. Ogrinc, Gerardus C. P. Vercoulen
  • Patent number: 8439495
    Abstract: An ink jet liquid composition which is used with an ink containing a pigment and which contains an ABC triblock polymer formed from an A block having an aryl group, a B block having a unit represented by the general formula (1), and a C block having a unit represented by the general formula (2), wherein an acid value of the polymer is 20 mgKOH/g or more and less than 150 mgKOH/g, the ratio of the number average molecular weight of the polymer to the acid value is 50 or more and 200 or less, the proportion of the A block in the polymer is 20.0 percent by mass or more and 80.0 percent by mass or less and is 5.0 times or more and 15.0 times or less the proportion of units derived from all acidic monomers contained in the polymer.
    Type: Grant
    Filed: August 24, 2011
    Date of Patent: May 14, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kenji Nishiguchi, Sachie Furukawa, Katsuhiro Hayashi
  • Publication number: 20130087070
    Abstract: Provided is a novel ink composition for a ballpoint pen such that the ink composition combines the strength of water-based ink for ballpoint pens and oil-based ink for ballpoint pens. Specifically provided is a water-based ink composition for ballpoint pens, wherein an oily phase containing an oily solution obtained by dissolving a dye in an organic solvent is contained, as an oil-in-water emulsion, in an aqueous phase comprising a pigment dispersant.
    Type: Application
    Filed: June 18, 2010
    Publication date: April 11, 2013
    Inventors: Hiroyuki Itou, Yoshihiro Kawakita
  • Publication number: 20130079442
    Abstract: A blue ink for postage printing, which contains a blue pigment, a black dye, and an aqueous carrier, wherein the weight ratio of blue pigment to black dye is in the range of 50:1 to 2:1. The blue pigment is a copper phthalocyanine pigment or an anthraquinone pigment, and the black dye is an azo dye.
    Type: Application
    Filed: June 16, 2010
    Publication date: March 28, 2013
    Applicant: Hewlett-Packard Development Company L.P.
    Inventors: Zeying Ma, Robert F. Little, Peter C. Morris
  • Patent number: 8377616
    Abstract: There is provided a colorant compound improved in the dispersibility of an azo pigment into a water-insoluble solvent. The colorant compound is represented by the following general formula (1). R1 denotes an alkyl group having 1 to 6 carbon atoms, or a phenyl group; R2 to R6 each denote a hydrogen atom, or a substituent represented by the following general formula (2); R7 to R11 each denote a hydrogen atom, a COOR12 group, or a CONR13R14 group; and R12 to R14 each denote a hydrogen atom, or an alkyl group having 1 to 3 carbon atoms; and P1 denotes a polymeric component; L1 denotes an alkylene group having 1 to 3 carbon atoms or an arylene group having 6 to 10 carbon atoms; and * denotes a binding site.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: February 19, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yutaka Tani, Masashi Hirose, Takayuki Toyoda, Yasuaki Murai, Masatake Tanaka, Masashi Kawamura, Kei Inoue, Yuki Hasegawa
  • Patent number: 8376644
    Abstract: A metallic ink includes 30% to 80% water, 0.4% to 10% color pigments having a particle size ?6 ?m, 1% to 15% dissolved resin from the group consisting of maleate resin and/or maleic acid modified rosin, 1% to 15% metallic pigments having a particle size distribution D50<25 ?m, 1% to 20% humectants, 0.1% to 10% additives and a viscosity of 5-10 mPa·s (Brookfield, CPE-40 spindle, 20 rpm). An applicator for applying the ink is also provided.
    Type: Grant
    Filed: January 24, 2011
    Date of Patent: February 19, 2013
    Assignee: Faber-Castell AG
    Inventors: Wolfgang Schwarz, Gerhard Lugert
  • Publication number: 20130002757
    Abstract: The ink set according to the invention includes a first ink containing water, pigments, and first metal ions as counter-ions of the pigments; and a second ink containing water, specific dyes, and second metal ions as counter-ions of the dyes, in which the maximum equivalent conductivity [S·cm2/eq] of the first metal ions is greater than the maximum equivalent conductivity [S·cm2/eq] of the second metal ions.
    Type: Application
    Filed: June 27, 2012
    Publication date: January 3, 2013
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Tomohiro ARUGA, Daisuke ISHIHARA
  • Publication number: 20130002754
    Abstract: A liquid droplet discharge apparatus includes a head member. The head member is provided with a nozzle surface, a plurality of nozzle arrays including a first nozzle array and a second nozzle array is arranged on the nozzle surface, the nozzle array includes a plurality of nozzle holes which are arranged in a predetermined pattern, the first nozzle array discharges a pigment ink which contains water and a pigment, the second nozzle array discharges a dye ink which contains water and a dye, and the relationship between the conductivity [E1 (mS/cm)] of the pigment ink and the conductivity [E2 (mS/cm)] of the dye ink is expressed by the formula 0<(E2?E1)?3.
    Type: Application
    Filed: June 27, 2012
    Publication date: January 3, 2013
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Tomohiro ARUGA, Daisuke ISHIHARA
  • Patent number: 8328922
    Abstract: A water-based ink for inkjet recording exhibits a blue color defined as L*<45, 25<C*<28, 255<h<278, and comprises a mixture of dyes and pigments, glycerol and polyethylene glycol #200 as water-soluble organic solvents and a polymeric dispersant. The ink will preferably have a ratio of glycerol to polyethylene glycol 200 within the range of from 2:1 to 3.5 1. The water-based ink preferably includes C.I. Pigment Blue 60 as a colorant and provides good printing stability and good storage stability. Tests show the inks to have good jettability.
    Type: Grant
    Filed: December 29, 2008
    Date of Patent: December 11, 2012
    Assignee: Pitney Bowes Inc.
    Inventors: Judith D. Auslander, Richard A. Bernard, Shunichi Higashiyama, Akihiko Taniguchi, Noriatsu Aoi
  • Patent number: 8329067
    Abstract: A method of producing a color filter by using the ink jet system. The method includes a step of preparing a specific ink-jet ink for color filter, the ink containing a pigment, a pigment dispersing agent, a binder forming system and a solvent, a step of forming an R ink layer, a G ink layer and a B ink layer respectively by the ink jet system and a step of curing each of the ink layer to form an R pixel, a G pixel and a B pixel, which each have an average film thickness range from 1.5 ?m to 2.5 ?m and a film thickness distribution range from 1.0 ?m to 3.0 ?m, wherein the ratio of the total area of the regions having a film thickness of 1.5 ?m or less or 2.5 ?m or more in one pixel is 5% or less.
    Type: Grant
    Filed: April 2, 2007
    Date of Patent: December 11, 2012
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Tomonori Nishida, Hiroyuki Honda
  • Patent number: 8303860
    Abstract: A colored curable composition including: (A) a pigment dispersion containing (a-1) a pigment, (a-2) a compound having a pigment mother nucleus structure and an amino group in a molecule, and (a-3) a resin having an acid group and a polymerizable group; (B) an oxime ester initiator; and (C) a polymerizable compound.
    Type: Grant
    Filed: March 5, 2009
    Date of Patent: November 6, 2012
    Assignee: FUJIFILM Corporation
    Inventors: Kazuto Shimada, Atsushi Sugasaki
  • Patent number: 8303699
    Abstract: An ink compatibility including a dye and surface functionalized photocatalytically active semiconductor nanoparticles is provided. This ink composition enables the reuse of a print substrate, because the surface functionalized photocatalytically active semiconductor nanoparticles bleach the dye under an activating radiation.
    Type: Grant
    Filed: April 15, 2008
    Date of Patent: November 6, 2012
    Assignee: Xerox Corporation
    Inventors: Michelle N. Chretien, Gabriel Iftime, Tyler B. Norsten, Peter M. Kazmaier
  • Patent number: 8299130
    Abstract: An aqueous dispersion, having particles of a water-insoluble colorant containing at least one pigment, with the particles being dispersed in a medium containing therein both water and a dispersing agent, wherein the water-insoluble colorant has a crystalline structure, and an average particle diameter of the particles is in the range of from 5 nm to 40 nm, and a monodispersity of the particles is 1.5 or less.
    Type: Grant
    Filed: October 29, 2008
    Date of Patent: October 30, 2012
    Assignee: FUJIFILM Corporation
    Inventors: Jun Matsumoto, Ryo Saito
  • Patent number: 8298452
    Abstract: A negative type resist composition for a color filter including (A) a pigment dispersant, (B) a pigment, (C) an alkaline-soluble resin, (D) a polyfunctional monomer, (E) a photo initiator and (F) a solvent.
    Type: Grant
    Filed: August 20, 2008
    Date of Patent: October 30, 2012
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Michihiro Ogura, Yoshihito Maeno, Hiroaki Segawa