Pigment Containing Patents (Class 106/31.6)
  • Patent number: 8323391
    Abstract: A paint composition is disclosed, the paint having a binder and an omnidirectional structural color pigment dispersed throughout the binder. The omnidirectional structural color pigment can be made from a plurality of flakes that have a multilayer structure, the pigment and the paint having a reflection band of less than 200 nanometers when viewed from angles between 0 to 45 degrees.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: December 4, 2012
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Debasish Banerjee, Songtao Wu, Minjuan Zhang, Masahiko Ishii
  • Patent number: 8318052
    Abstract: The present invention relates to a pigment composition composed of compounds of the formula (I), (II) and (III) with a novel crystal modification, to their preparation and to the use of this novel product as a pigment. For many applications of organic pigments, for example the coloring of metallic lacquers or the use thereof in color filters, a very high transparency is required. To produce color filters, for example, particularly fine pigments are used, in order to substantially rule out the particle scattering which leads to a lowering of the contrast ratio. The commercially available products, however, do not always meet all requirements of the art. More particularly, there was a need for improvement with regard to the transparency and the associated fineness of the pigment crystals, and also the color purity (chroma).
    Type: Grant
    Filed: January 17, 2008
    Date of Patent: November 27, 2012
    Assignee: Clariant Finance (BVI) Limited
    Inventor: Matthias Ganschow
  • Patent number: 8313576
    Abstract: A method of preparing a pigment includes the steps of: a) providing a mixture including: a pigment selected from the group of pigments including at least 50 wt % of C.I. Pigment Violet 23, C.I. Pigment Red 146, C.I. Pigment Red 176, C.I. Pigment Red 177, C.I. Pigment Violet 19 and C.I. Pigment Orange 13 based on the total weight of the pigment; alkyl nitrile; and at least one acid selected from the group consisting of sulfuric acid and chlorosulfuric acid, with the acid present in the mixture in amount of more than 2 wt % based on the total weight of the pigment; b) heating the mixture for more than 2 hours to a temperature of at least 70° C.; and c) filtering the mixture and washing the filtrand with a washing liquid containing water until the filtrate has a pH between 4 and 7. Pigments obtainable by the method and non aqueous pigment dispersions are also disclosed.
    Type: Grant
    Filed: October 15, 2010
    Date of Patent: November 20, 2012
    Assignee: AGFA-GEVAERT N.V.
    Inventor: Geert Deroover
  • Publication number: 20120285347
    Abstract: The present invention relates to a modified colored pigment comprising a colored pigment having an attached organic group. The organic group is attached to the colored pigment via at least one carbon atom of a C—C single bond or double bond, wherein the C—C single bond or double bond is not a component of an aromatic system. The organic group further comprises at least one activating group on at least one carbon atom of the C—C single bond or double bond. A method of preparing a modified colored pigment is also disclosed, as are aqueous and non-aqueous dispersions, e.g., including ink jet inks, comprising the modified colored pigments.
    Type: Application
    Filed: July 25, 2012
    Publication date: November 15, 2012
    Applicant: CABOT CORPORATION
    Inventors: James A. Belmont, Elizabeth G. Burns
  • Patent number: 8309621
    Abstract: Disclosed is a radiation curable solid ink composition comprising: (a) a curable wax; (b) at least one curable monomer, oligomer, or prepolymer; (c) at least one photoinitiator; and (d) a pigment colorant; wherein the ink is a solid at a first temperature of about 25° C. or lower; and wherein the ink is a liquid at a second temperature of about 40° C. or higher; said ink being curable by free-radical polymerization.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: November 13, 2012
    Assignee: Xerox Corporation
    Inventors: Marcel P Breton, Michelle N Chretien, Barkev Keoshkerian
  • Patent number: 8309628
    Abstract: The object of the present invention is to provide an ink composition for heatset offset printing which has an excellent drying property, does not cause skinning during storage of ink composition, and has excellent stability on press in printing. The present invention is an ink composition for heatset offset printing containing a pigment, a binder resin, a petroleum solvent, and at least one kind of vegetable oil component selected from the group consisting of a vegetable oil and a fatty acid ester thereof, the content of the vegetable oil component being 20% by mass or less, and the ink composition further containing: 0.008 to 0.7% by mass of a metal soap drier based on the mass of the metal contained in the drier; 0.008 to 12% by mass of at least one kind selected from the group consisting of a polyvalent carboxylic acid, a derivative thereof, tocopherol, and tocotrienol; and 0.08 to 12% by mass of a phenolic antioxidant.
    Type: Grant
    Filed: June 16, 2006
    Date of Patent: November 13, 2012
    Assignee: Sakata Inx Corp.
    Inventors: Yuichi Kataura, Tomohide Katoh, Naoki Kodaira, Kousuke Naganuma
  • Patent number: 8303099
    Abstract: The object of the invention to provide a recording ink with excellent discharge stability and storage stability, which rapidly penetrates into a recording medium and forms a coating, and which will never generate smearing upon high-speed printing or double-sided printing, and which excels in marker resistance, and which enables high quality image recording with less bleeding, and the ink cartridge, the ink record, the inkjet recording apparatus, and the inkjet recording method using the recording ink. The recording ink containing at least water, a colorant, a resin fine-particle, a water-soluble organic solvent and a penetrant, in which the penetrant is a diol compound whose carbon number is 7 to 11 and the resin fine-particle is a silicone modified acrylic resin not containing a hydrolyzable silyl group.
    Type: Grant
    Filed: July 7, 2010
    Date of Patent: November 6, 2012
    Assignee: Ricoh Company, Ltd.
    Inventors: Mariko Kojima, Tomohiro Inoue, Akihiko Gotoh, Michihiko Namba, Hisashi Habashi, Akiko Bannai, Kiyofumi Nagai
  • Patent number: 8303700
    Abstract: The present invention is related to a coating composition for the production of a magnetically induced image, consisting of volatile components (S) and non-volatile components, the latter consisting of an ink vehicle (I) and magnetically orientable optically variable interference pigment (P), to a process for manufacturing the coating composition, and to the use of the composition for the production of a magnetically induced image coating on a substrate with the help of applied magnetic fields. Said magnetically induced image coating may be used as a security device on value- or identity documents, brand protection labels and the like.
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: November 6, 2012
    Assignee: Sicpa Holding SA
    Inventors: Pierre Degott, Claude-Alain Despland, Patrick Magnin, Patrick Veya, Mathieu Schmid, Edgar Mueller, Albert Stichelberger
  • Patent number: 8303861
    Abstract: Colored composite microparticles comprising silica and an organic pigment in which the silica is enclosed in the organic pigment and contained in an amount of 0.001 to 9% by weight (calculated as Si) based on the weight of the composite particles. These microparticles have a high tinting strength and are excellent in dispersibility and light fastness.
    Type: Grant
    Filed: November 22, 2010
    Date of Patent: November 6, 2012
    Assignee: Toda Kogyo Corporation
    Inventors: Shinji Horie, Hiroko Morii, Hirofumi Nishikawa, Kazuyuki Hayashi
  • Publication number: 20120272861
    Abstract: A solid ink composition comprising an amorphous component, a crystalline material, and optionally, a colorant, which are suitable for ink jet printing, including printing on coated paper substrates. In embodiments, the amorphous component is synthesized from an esterification reaction of citric acid.
    Type: Application
    Filed: April 27, 2011
    Publication date: November 1, 2012
    Applicant: XEROX CORPORATION
    Inventors: Kentaro Morimitsu, Jennifer L. Belelie, Stephan V. Drappel, C. Geoffrey Allen, Corey Tracy, Peter G. Odell
  • Publication number: 20120274700
    Abstract: A solid ink composition comprising an amorphous component, a crystalline material, and optionally, a colorant, which are suitable for ink jet printing, including printing on coated paper substrates. In embodiments, the solid ink formulation comprises a blend of amorphous and crystalline components which provides a solid ink with excellent rheological properties and robustness when forming images or printing on coated paper substrates.
    Type: Application
    Filed: April 27, 2011
    Publication date: November 1, 2012
    Applicant: XEROX CORPORATION
    Inventors: Jennifer L. Belelie, Peter G. Odell, Stephan V. Drappel, Kentaro Morimitsu, Naveen Chopra, Corey Tracy, Jule W. Thomas, JR., Jeffrey H. Banning, Paul J. McConville, Joanne L. Lee
  • Patent number: 8298299
    Abstract: An azo pigment selected from the group consisting of: an azo pigment represented by the following formula (1), which has: a characteristic X-ray diffraction peak at Bragg angles (2?±0.2°) of 6.9°, 21.5°, and 27.3° in CuK? characteristic X-ray diffraction, a peak height at 11.9° of 0.6 or less relative to a peak height at 10.9° or a tautomer thereof, or a salt, hydrate, or solvate of the azo pigment or tautomer thereof; and an azo pigment represented by the following formula (1), which has: a characteristic X-ray diffraction peak at Bragg angles (2?±0.2°) of 6.9°, 25.8°, and 27.1° in CuK? characteristic X-ray diffraction, a peak height at 10.9° of 0.2 or less relative to a peak height at 11.9° or a tautomer thereof, or a salt, hydrate, or solvate of the azo pigment or tautomer thereof.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: October 30, 2012
    Assignee: FUJIFILM Corporation
    Inventors: Masahiro Higashi, Yoshihiro Jimbo, Keiichi Tateishi
  • Publication number: 20120268806
    Abstract: Pigment-based inks with fluorinated material-surface modified pigments are provided. The inks include a non-polar carrier fluid, and pigment particles suspended in the non-polar carrier fluid. The pigment particles either have fluorinated acidic functional groups, which are charged through basic charge directors to give negatively charged pigment dispersions, or have fluorinated basic functional groups, which are charged thorough acidic charge directors to give positively charged pigment dispersions. A combination of an electronic display and an electronic ink is also provided, as is a method for modifying the pigment particles.
    Type: Application
    Filed: April 21, 2011
    Publication date: October 25, 2012
    Inventors: Zhang-Lin Zhou, Jong-Souk Yeo, Qin Liu
  • Publication number: 20120266779
    Abstract: A non-aqueous pigment ink that exhibits excellent color reproducibility and storage stability. The non-aqueous pigment ink contains two or more lake pigments and a non-aqueous solvent.
    Type: Application
    Filed: April 12, 2012
    Publication date: October 25, 2012
    Applicant: RISO KAGAKU CORPORATION
    Inventors: Marie MORINAGA, Teruaki OKAWA
  • Patent number: 8292994
    Abstract: A method for producing water-repellent treated aluminum pigment dispersion includes (a) adding a polysilazane solution in which a polysilazane is dissolved in a second organic solvent to an aluminum pigment dispersion in which an aluminum pigment is dispersed in a first organic solvent for reacting a hydroxyl group present on the surface of the aluminum pigment with the polysilazane to form a covering film on the surface of the aluminum pigment. The amount of the polysilazane in the reaction system for forming the covering film is 0.4 parts by mass or less based on 1 part by mass of the aluminum pigment, and the total addition amount of the polysilazane is from 0.2 to 0.6 parts by mass based on 1 part by mass of the aluminum pigment.
    Type: Grant
    Filed: November 29, 2011
    Date of Patent: October 23, 2012
    Assignee: Seiko Epson Corporation
    Inventors: Takayoshi Kagata, Tsuyoshi Sano, Toshimi Fukui, Hideki Kawasaki
  • Patent number: 8292996
    Abstract: An oily inkjet ink comprises a pigment, a dispersant, and an organic solvent. The organic solvent contains an ester solvent and/or an alcohol solvent. A containing quantity of a water-soluble ingredient in the pigment is equal to at most 0.15% by mass.
    Type: Grant
    Filed: December 28, 2010
    Date of Patent: October 23, 2012
    Assignee: Riso Kagaku Corporation
    Inventors: Katsumi Kuriyama, Kengo Sugaya, Kenji Yamada
  • Publication number: 20120262520
    Abstract: Among other things, ink is jetted onto a substrate, the ink includes (a) a pigment and (b) a wax, and the jetted ink on the substrate is heated to fire the pigment on the substrate.
    Type: Application
    Filed: April 13, 2011
    Publication date: October 18, 2012
    Applicant: FUJIFILM Dimatix. Inc.
    Inventor: Howard T. Baldwin
  • Patent number: 8287633
    Abstract: In one aspect of the present system and method, a pigment-based ink includes an acidic pigment-based ink formulation, and a pigment load less than 5 weight percent, where an amphoteric dispersant maintains the pigment distributed in the acidic pigment-based ink formulation, wherein the amphoteric dispersant has an isoelectric point, and wherein the amphoteric dispersant has a higher isoelectric point than the pH of the acidic pigment-based ink formulation.
    Type: Grant
    Filed: September 29, 2005
    Date of Patent: October 16, 2012
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Palitha Wickramanayake
  • Patent number: 8282725
    Abstract: The invention provides a self-dispersion pigment including a pigment, an ionic group directly bonded to the pigment and a nonionic molecular chain bonded to the pigment through an amide bond.
    Type: Grant
    Filed: April 9, 2010
    Date of Patent: October 9, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Naofumi Shimomura, Ai Shinohara, Eri Watanabe, Yutaka Kurabayashi
  • Patent number: 8277552
    Abstract: An ink set includes a cyan ink composition containing C. I. Pigment Blue 15:6 as a pigment; a magenta ink composition containing a quinacridone pigment or a quinacridone solid solution pigment; a light magenta ink composition containing a quinacridone pigment selected from the group consisting of C. I. Pigment Violet 19, C. I. Pigment Red 122, C. I. Pigment Red 202, and C. I. Pigment Red 209 or a quinacridone solid solution pigment composed of at least two selected from the group, the pigment concentration being lower than that of the magenta ink composition; a light cyan ink composition containing C. I. Pigment Blue 15:3 as a pigment at a pigment concentration lower than that of the cyan ink composition; an orange ink composition containing a pigment selected from the group consisting of C. I. Pigment Orange 43 and C. I. Pigment Red 242: a green ink composition containing a pigment selected from the group consisting of C. I. Pigment Green 36 and C. I. Pigment Green 7.
    Type: Grant
    Filed: December 6, 2010
    Date of Patent: October 2, 2012
    Assignee: Seiko Epson Corporation
    Inventors: Shohei Shiono, Tsuyoshi Sano
  • Patent number: 8277551
    Abstract: An ink set includes a cyan ink composition containing C. I. Pigment Blue 15:6 as a pigment; a magenta ink composition containing a quinacridone pigment selected from the group consisting of C. I. Pigment Violet 19, C. I. Pigment Red 122, C. I. Pigment Red 202, and C. I. Pigment Red 209 or a quinacridone solid solution pigment composed of at least two selected from the group; a yellow ink composition containing a pigment selected from the group consisting of C. I. Pigment Yellow 74, C. I. Pigment Yellow 213, and C. I. Pigment Yellow 185; a light magenta ink composition containing a quinacridone pigment selected from the group consisting of C. I. Pigment Violet 19, C. I. Pigment Red 122, C. I. Pigment Red 202, and C. I. Pigment Red 209 or a quinacridone solid solution pigment composed of at least two selected from the group at a pigment concentration lower than that of the magenta ink composition; and a light cyan ink composition containing C. I.
    Type: Grant
    Filed: February 19, 2010
    Date of Patent: October 2, 2012
    Assignee: Seiko Epson Corporation
    Inventors: Shohei Shiono, Tsuyoshi Sano
  • Patent number: 8273167
    Abstract: The present invention provides: a pigment dispersion composition including (A) an organic pigment, (B) a pigment derivative represented by Formula (I) below and (C) a polymer compound having a pigment-adsorptive functional group; a curable color composition including the pigment dispersion composition, a polymerizable compound and a polymerization initiator; and a color filter having a color region formed using the curable color composition and a method for producing the same. Q represents an organic colorant residue; A represents an ethylene group or the like; and R represents a hydroxyl group or a group represented by —NH-A-Z; Z represents —SO3H, —COOH or a salt thereof; and n represents an integer of from 1 to 4. When R represents —NH-A-Z, the structures represented by the two —NH-A-Zs bonded to the triazine ring contained in each of the n partial structures bonded to Q may be the same as each other or different from each other.
    Type: Grant
    Filed: October 24, 2008
    Date of Patent: September 25, 2012
    Assignee: FUJIFILM Corporation
    Inventors: Koichi Sugihara, Kazuhiro Fujimaki
  • Patent number: 8268064
    Abstract: Compositions, systems, and methods for ink-jet printing having improved black to color bleed control, reduced wicking, and/or reduced halo are described. The composition can include a functionalized carbon pigment dispersed in an ink vehicle. The carbon pigment includes functional groups chemically attached thereto. Suitable functional groups includes an aromatic ring structure having multiple carboxyl groups (or salts thereof) attached to the aromatic ring structure, wherein at least two of the multiple carboxyl groups are positioned on adjacent carbon atoms of the aromatic ring structure.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: September 18, 2012
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Kai-Kong Iu, Dennis P Parazak, Dennis Guo, Xiaohe Chen, Rodney Stramel, Howard A. Doumaux
  • Publication number: 20120229559
    Abstract: 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: Application
    Filed: March 9, 2012
    Publication date: September 13, 2012
    Applicant: FUJIFILM CORPORATION
    Inventor: Yasuaki MATSUSHITA
  • Patent number: 8257480
    Abstract: 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: Grant
    Filed: October 27, 2010
    Date of Patent: September 4, 2012
    Assignee: Seiko Epson Corporation
    Inventors: Takashi Oyanagi, Kiyohiko Takemoto, Chiyoshige Nakazawa
  • Patent number: 8257481
    Abstract: 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: Grant
    Filed: September 22, 2011
    Date of Patent: September 4, 2012
    Assignee: Seiko Epson Corporation
    Inventors: Takashi Oyanagi, Kiyohiko Takemoto, Chiyoshige Nakazawa
  • Publication number: 20120218344
    Abstract: There is provided a water-based ink for ink-jet recording including: a self-dispersible carbon black modified by carboxylic acid group; water; and a water-soluble organic solvent, wherein oxalate ion is contained in the water-based ink in a amount of not more than 45 ppm by weight.
    Type: Application
    Filed: January 27, 2012
    Publication date: August 30, 2012
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Junichiro SUGIMOTO
  • Publication number: 20120218362
    Abstract: A process for forming an image on a substrate, comprises depositing ink compositions of at least two colours onto the substrate to form the image, and fixing the image to the substrate, wherein the ink is deposited using an electrostatic printhead, which ejects chargeable marking particles dispersed in a carrier fluid by using an applied electric field to first concentrate and then eject the marking particles, and wherein all of the ink compositions are deposited onto the substrate before the image is fixed. An ink composition suitable for use in the invention comprises: 45-95% by weight of a carrier liquid; 6-40% by weight of insoluble chargeable marking particles; and 0.4-10% by weight of a soluble dispersant, characterised in that the ink does not contain an agent that can fix the marking particles to a substrate.
    Type: Application
    Filed: September 14, 2010
    Publication date: August 30, 2012
    Inventors: Sean Dennis Slater, Andrew John Clippingdale, Guy Charles Fernley Newcombe
  • Patent number: 8252104
    Abstract: A water-based infrared absorptive ink for ink-jet recording is provided that absorbs electromagnetic waves in the infrared range without adversely affecting the color tone of recorded objects. The water-based infrared absorptive ink for ink-jet recording contains antimony-tin composite oxide fine particles and a coloring agent.
    Type: Grant
    Filed: November 6, 2008
    Date of Patent: August 28, 2012
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Hitomi Sadohara
  • Publication number: 20120210908
    Abstract: An oil-based inkjet ink includes at least a pigment, a dispersant and an organic solvent, wherein a calcium content in the ink is 8 ppm or less, and a magnesium content in the ink is 3 ppm or less.
    Type: Application
    Filed: July 15, 2010
    Publication date: August 23, 2012
    Applicant: RISO KAGAKU CORPORATION
    Inventors: Toshihiro Endo, Masakatsu Arai, Kenji Yamada, Katsumi Kuriyama, Atsushi Tanaka, Kazuya Kawakami, Shin-ichiro Shimura, Shotaro Kon, Yoshiaki Matsuzawa, Kohji Nomura
  • Patent number: 8246156
    Abstract: The object of the present invention is to provide a water-based pigment dispersion containing a pigment, a dispersing agent, a resin emulsion, and water, the water-based pigment dispersion is subjected to a heat treatment. The present invention also provides a water-based pigment ink containing the water-based pigment dispersion, a dispersing agent, a resin emulsion, and water.
    Type: Grant
    Filed: August 12, 2010
    Date of Patent: August 21, 2012
    Assignee: Ricoh Company, Ltd.
    Inventors: Shin Hasegawa, Keishi Taniguchi, Minoru Hakiri, Yasuyuki Hosogi, Yuji Natori, Shigeo Hatada
  • Patent number: 8246735
    Abstract: The present invention is related to a coating composition for the production of a magnetically induced image, consisting of volatile components (S) and non-volatile components, the latter consisting of an ink vehicle (I) and magnetically orientable optically variable interference pigment (P), to a process for manufacturing the coating composition, and to the use of the composition for the production of a magnetically induced image coating on a substrate with the help of applied magnetic fields. Said magnetically induced image coating may be used as a security device on value- or identity documents, brand protection labels and the like.
    Type: Grant
    Filed: March 29, 2007
    Date of Patent: August 21, 2012
    Assignee: SICPA Holding SA
    Inventors: Pierre Degott, Claude-Alain Despland, Patrick Magnin, Patrick Veya, Mathieu Schmid, Edgar Müller, Albert Stichelberger
  • Patent number: 8240834
    Abstract: An ink for ink-jet recording may contain a coloring agent and a marker. The coloring agent may contain a pigment. The marker may have a detector absorption peak for detecting the marker at a wavelength that is different from a wavelength of the maximum absorption peak of the coloring agent. The coloring agent and the marker may be contained in the ink in amounts that satisfy the following conditions (I) to (III): (I) about 1.2?A2/A3; (II) color difference (?E)?about 3; and (III) about 1?A2?about 10 in terms of a measurement optical path length of 1 mm, where A2 denotes an absorbance at the wavelength of the detector absorption peak of the marker, A3 denotes a baseline absorbance at the wavelength of the detector absorption peak of the marker.
    Type: Grant
    Filed: April 10, 2007
    Date of Patent: August 14, 2012
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Tatsunosuke Hoshi
  • Patent number: 8236199
    Abstract: Phosphor and fluorescent compositions and methods of producing them are provided.
    Type: Grant
    Filed: September 2, 2005
    Date of Patent: August 7, 2012
    Assignee: University of Georgia Research Foundation, Inc.
    Inventors: Thomas Mahany, William Yen, Laurel C. Yen, legal representative, Gennaro J. Gama
  • Patent number: 8236096
    Abstract: The ink set for inkjet recording of the invention has at least: an aqueous ink composition containing at least a pigment; and a reaction liquid containing at least a reactant that produces an aggregate when contacted with the aqueous ink composition. The static surface tension of the reaction liquid is 40 mN/m or higher. The dynamic surface tension ?0.1 is from 40 mN/m to 50 mN/m and the ratio ?0.1/?10, that is a ratio of the dynamic surface tension and is sometimes referred to as ?, is from 1.01 to 1.10, in which the dynamic surface tension of the reaction liquid at a surface lifetime of 100 ms and 10000 ms is ?0.1 and ?10, respectively, according to the maximum bubble pressure technique. The aqueous ink composition aggregates by contacting the reaction liquid to form an image.
    Type: Grant
    Filed: March 15, 2010
    Date of Patent: August 7, 2012
    Assignee: Fujifilm Corporation
    Inventor: Minoru Sakai
  • Patent number: 8231723
    Abstract: 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: Grant
    Filed: October 27, 2010
    Date of Patent: July 31, 2012
    Assignee: Seiko Epson Corporation
    Inventors: Takashi Oyanagi, Kiyohiko Takemoto, Chiyoshige Nakazawa
  • Patent number: 8222313
    Abstract: Radiation curable compositions, such as UV curable ink compositions, contain a polymeric dispersant, a curable material, that includes a carrier and at least one nanoscale fluorescent pigment particle and an optional non-fluorescent colorant. The fluorescent organic nanoparticle composition includes one or more fluorescent dyes dispersed in a polymeric matrix obtained by modified EA latex process or by emulsion polymerization. In a different embodiment, the nanoscale fluorescent pigment particle composition includes pigment molecules with at least one functional moiety, and a sterically bulky stabilizer compound including at least one functional group, the functional moiety of the pigment associates non-covalently with the functional group of the stabilizer, and the presence of the associated stabilizer limits the extent of particle growth and aggregation, to afford nanoscale-sized pigment particles.
    Type: Grant
    Filed: October 6, 2008
    Date of Patent: July 17, 2012
    Assignee: Xerox Corporation
    Inventors: Gabriel Iftime, C. Geoffrey Allen, Maria M. Birau, Christopher A. Wagner, Daryl W. Vanbesien, Jordan H. Wosnick, Peter G. Odell
  • Patent number: 8221537
    Abstract: The invention relates to aqueous pigment preparations containing (A) at least one organic and/or inorganic pigment, (B) a dispersant of formula (I) or (II), or mixtures of the dispersants of formula (I) and (II), (C) optionally wetting agents, (D) optionally other surfactants and/or dispersants, (E) optionally one or more organic solvents or one or more hydrotropic substances, (F) optionally other additives used conventionally for the production of aqueous pigment dispersions and (G) water.
    Type: Grant
    Filed: April 29, 2008
    Date of Patent: July 17, 2012
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Bjoern Fechner, Carsten Schaefer, Alexander Woerndle
  • Patent number: 8221534
    Abstract: The present disclosure relates to ink-jet ink compositions, systems, and/or methods including a yellow ink, a magenta ink and a cyan ink for producing ink-jet printed matter having desirable color balance (e.g., difference in percent residual optical densities (ODs) between individual colors) and/or color retention (e.g., percent residual OD) following contact with water. For example, the absolute value of the difference in a percent residual OD of an image produced in accordance with some embodiments of the disclosure may be less than about 20%. The percent residual OD of an image produced in accordance with some embodiments of the disclosure may be more than about 40%.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: July 17, 2012
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Tomoyo Hamajima
  • Patent number: 8221538
    Abstract: The invention relates to an aqueous pigment preparation, containing (A) at least one organic and/or inorganic pigment, (B) a dispersing agent of the formulas (I), (II), (III) or (IV), or mixtures of the dispersing agent of the formulas (I), (II), (III) or (IV), (C) optionally a wetting agent (D) optionally further surfactants and/or dispersing agents, (E) optionally one or multiple organic solvents, or one or multiple hydrotropic substances, (F) optionally further additives common for the production of aqueous pigment dispersions, and (G) water.
    Type: Grant
    Filed: July 23, 2008
    Date of Patent: July 17, 2012
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Bjoern Fechner, Carsten Schaefer, Alexander Woerndle
  • Patent number: 8216356
    Abstract: An object of the present invention is to provide an ink set for ink jet capable of obtaining printed articles superior in warm color representation and weather resistance, an ink jet coloring process and a colored product for outdoor. An ink set for ink jet containing an orange pigment ink (a) and a red pigment ink (b) wherein the orange pigment ink (a) includes iron oxide serving as an orange pigment and a solvent, and the red pigment ink (b) includes iron oxide serving as said red pigment; at least one of a pigment selected from condensed polycyclic compound pigments, said at least one of a pigment serving as said red pigment; and a solvent.
    Type: Grant
    Filed: July 25, 2008
    Date of Patent: July 10, 2012
    Assignee: Seiren Co., Ltd.
    Inventor: Tomoyuki Nishikawa
  • Patent number: 8216355
    Abstract: An ink contains at least a pigment, wherein the pigment is C.I. Pigment Red 282, and a primary particle diameter D (nm) of the pigment and a 50%-cumulative diameter D50 (nm) in particle diameter distribution of the pigment satisfy a relation of D×0.95?D50?150, and a 90%-cumulative diameter D90 (nm) in particle diameter distribution of the pigment and the 50%-cumulative diameter D50 (nm) satisfy a relation of 1.5?D90/D50?2.5.
    Type: Grant
    Filed: February 3, 2010
    Date of Patent: July 10, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masako Udagawa, Shuichi Okazaki, Hiroshi Kakikawa, Yuuhei Shimizu, Shinichi Hakamada, Hideyuki Takai
  • Patent number: 8216353
    Abstract: An ink-jet ink comprising at least water, a water-soluble solvent, a radically polymerizable compound, and a photoinitiator, wherein the photoinitiator is a benzyl ketal compound incorporating a pendent water-soluble group via an oxygen atom or a sulfur atom.
    Type: Grant
    Filed: March 18, 2008
    Date of Patent: July 10, 2012
    Assignee: Konica Minolta Holdings, Inc.
    Inventor: Masaki Nakamura
  • Publication number: 20120156151
    Abstract: A method of making a pigment comprising a dye and a clay having pores. The method includes mixing a first reaction component with first and second dye components to form a reaction mixture, wherein the first reaction component comprises the clay and a catalyst associated with the clay, wherein the first and second dye components are adapted to react with each other in the presence of the catalyst to form the dye, and whereupon the catalyst catalyzes the reaction of the first and second dye components, and at least some of the first and second dye components react within the pores.
    Type: Application
    Filed: August 31, 2010
    Publication date: June 21, 2012
    Inventor: Guilherme L. Indig
  • Patent number: 8202361
    Abstract: The invention relates to an aqueous pigment preparation containing (A) at least one organic and/or inorganic pigment, (B) a dispersant of formula (I), (II), (III) or (IV) or mixtures of the dispersants of formula (I), (II), (III) or (IV), (C) optionally wetting agents, (C) optionally other surfactants and/other dispersants, (E) optionally at least one organic solvent or at least one hydrotropic substance, (F) optionally other additives commonly used to produce aqueous pigment dispersions.
    Type: Grant
    Filed: July 23, 2008
    Date of Patent: June 19, 2012
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Bjoern Fechner, Carsten Schaefer, Alexander Woerndle
  • Patent number: 8197584
    Abstract: A curable pigment inkjet ink set includes a cyan inkjet ink, a yellow inkjet ink, and a magenta inkjet ink, wherein the yellow inkjet ink having ABS(Y)momo <5 and ABS(Y)400-500>60 includes one or more yellow pigments; the cyan inkjet ink includes one or more ?-copper phthalocyanine pigments; and the magenta inkjet ink contains a mixed crystal including a first quinachdone and a second quinacridone in a ratio of the first quinacridone over the second quinacridone such that ABS(M)500-530>20 and ABS(M)500-600 >60. ABS(Y)500-530 represents the absorbance of the yellow inkjet ink between 500 and 530 nm; ABS(M)500-530 represents the absorbance of the magenta inkjet ink between 500 and 530 nm; ABS(Y)400-500 represents the absorbance ot the yellow inkjet ink between 400 and 500 nm; and ABS(M)500-600 represents the absorbance of the magenta inkjet ink between 500 and 600 nm.
    Type: Grant
    Filed: October 2, 2007
    Date of Patent: June 12, 2012
    Assignee: Agfa Graphics NV
    Inventors: Roland Claes, Geert Deroover
  • Patent number: 8198346
    Abstract: The present disclosure provides encapsulated pigments, ink-jet inks incorporating such pigments, and methods for manufacturing such pigments. In one embodiment, an encapsulated pigment can comprise a pigment, an encapsulating polymer that encapsulates the pigment, and a viscosity modifying polymer particulate that is cross-linked and which is dispersed within the encapsulating polymer.
    Type: Grant
    Filed: July 7, 2010
    Date of Patent: June 12, 2012
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Sivapackia Ganapathiappan
  • Publication number: 20120140001
    Abstract: A synergist for pigment in a solid ink having the following formula: where n is 1, 2, 3, or 4, X represents a metal, ammonium, or quaternary ammonium, R1, R2, and R3 independently represent H, C1-C20 alkyl, C1-C20 alkoxy, and halogen, A solid ink including the synergist having the above formula.
    Type: Application
    Filed: December 6, 2010
    Publication date: June 7, 2012
    Applicant: XEROX CORPORATION
    Inventors: M. Maria BIRAU, C. Geoffrey ALLEN, Marcel P. BRETON, Carol A. JENNINGS, Caroline M. TUREK, James D. MAYO, Raymond W. WONG, Yvonne WONG, Adela GOREDEMA
  • Patent number: 8192008
    Abstract: An inkjet printing system includes an inkjet printer responsive to digital signals and containing an ink composition having: (a) water, (b) dispersed pigment particles, (c) a humectant, and (d) a polyurethane additive having at least a first soft segment having siloxane groups, the additive having a weight average molecular weight of at least 10,000 daltons and a sufficient number of acid groups to provide an acid number greater than 60. An improved combination of scratch resistance and jetability is obtained.
    Type: Grant
    Filed: August 28, 2008
    Date of Patent: June 5, 2012
    Assignee: Eastman Kodak Company
    Inventors: Thomas B. Brust, Catherine A. Falkner, Paul D. Yacobucci, Kurt M. Schroeder
  • Patent number: 8193266
    Abstract: The use of compounds of the general formula I in aqueous binder-containing formulations, wherein the variables are each as defined as follows: R1 is selected from C1-C20-alkyl, straight chain or branched, or CO—C1-C19-alkyl or CO—C2-C19-alkenyl, straight chain or branched, R2 in each occurrence is the same or different and selected from C1-C3-alkyl, R3 is selected from C1-C20-alkyl, straight chain or branched, or CO—C1-C19-alkyl or CO—C2-C19-alkenyl, straight chain or branched, x is from 0 to 20, y is from 0 to 20, provided x and y are not both zero, a is from 1 to 3.
    Type: Grant
    Filed: October 23, 2007
    Date of Patent: June 5, 2012
    Assignee: BASF Aktiengesellschaft
    Inventors: Karl Siemensmeyer, Johann Mueller, Stefan Kuhn, Karl-Heinz Weigert, Oihana Elizalde