Lithographic Patents (Class 430/302)
  • Patent number: 10875336
    Abstract: An indexing image for craft stamps that is opaque to the eye but transparent to UV light is produced by printing a wavelength-specific solvent-based ink on the stamp substrate. This eliminates the step of printing a separate adhesive-backed indexing image sheet and applying it to the substrate.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: December 29, 2020
    Assignee: CHEMENCE, INC.
    Inventor: John P. Maneira
  • Patent number: 10774228
    Abstract: Provided are an ink composition including water; and a microcapsule which includes: a shell that has a three-dimensional cross-linked structure containing at least one bond selected from a urethane bond or a urea bond, and including a core that contains a di- or lower functional polymerizable compound, a tri- or higher functional polymerizable compound, and a photopolymerization initiator, in which a proportion of the di- or lower functional polymerizable compound is 20% by mass or more with respect to a total mass of the di- or lower functional polymerizable compound and the tri- or higher functional polymerizable compound, and an image forming method using the ink composition.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: September 15, 2020
    Assignee: FUJIFILM CORPORATION
    Inventors: Noriaki Sato, Ichiro Koyama, Shota Suzuki
  • Patent number: 10126655
    Abstract: Provided is a method of producing a planographic printing plate, including: subjecting a planographic printing plate precursor, which has a support and a positive-working image recording layer, to image-wise exposure; and developing it using an alkaline aqueous solution which contains a specific compound and has a pH of from 8.5 to 10.8, in this order. The recording layer has: a lower layer containing a water-insoluble and alkali-soluble resin and an infrared ray absorbing agent; and an upper layer containing a water-insoluble and alkali-soluble polyurethane resin and a polyorganosiloxane. The specific compound is a nonionic or anionic surfactant, or at least one compound represented by Formula (1) or (2), wherein R11, R12, and R13 each represent an alkyl group; R14 represents an alkylene group; and R15 represents a single bond or a divalent linking group containing a hetero atom; and R21, R22, and R23 each represent an alkyl group.
    Type: Grant
    Filed: August 1, 2014
    Date of Patent: November 13, 2018
    Assignee: Fujifilm Corporation
    Inventor: Norio Aoshima
  • Patent number: 10126654
    Abstract: Provided is a method of producing a planographic printing plate, including: subjecting a planographic printing plate precursor, which has a support and a positive-working image recording layer, to image-wise exposure; and developing it using an alkaline aqueous solution which contains a specific compound and has a pH of from 8.5 to 10.8, in this order. The recording layer has: a lower layer containing a water-insoluble and alkali-soluble resin and an infrared ray absorbing agent; and an upper layer containing a water-insoluble and alkali-soluble polyurethane resin and a polyorganosiloxane. The specific compound is a nonionic or anionic surfactant, or at least one compound represented by Formula (1) or (2), wherein R11, R12, and R13 each represent an alkyl group; R14 represents an alkylene group; and R15 represents a single bond or a divalent linking group containing a hetero atom; and R21, R22, and R23 each represent an alkyl group.
    Type: Grant
    Filed: August 1, 2014
    Date of Patent: November 13, 2018
    Assignee: Fujifilm Corporation
    Inventor: Norio Aoshima
  • Patent number: 10048584
    Abstract: A thinner composition includes propyleneglycol alkylether acetate, cycloketone, and methyl 2-hydroxy isobutyrate. The thinner composition has excellent EBR, RRC, and rework properties, as well as effects of improving photoresist application uniformity, and in particular, exhibiting excellent solubility to photoresist having a high polarity, so as to be applicable to various photoresists.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: August 14, 2018
    Assignee: DONGWOO FINE-CHEM CO., LTD.
    Inventors: Cheol Min Choi, In Kak Song, Kyong Ho Lee
  • Patent number: 9925757
    Abstract: A method of creating a custom relief image printing element from at least one raw photocurable material and at least one lamination layer supplied by a manufacturer is described. The manufacturer provides a menu of raw photocurable materials and a menu of lamination layers and wherein the customer selects at least one raw photocurable material from the menu of raw photocurable materials and selects at least one lamination layer from the menu of lamination layers. The method includes the steps of: a) laminating the selected at least one raw photocurable material to the selected at least one lamination layer at a customer's location to create a photocurable printing blank; and thereafter b) imagewise exposing the at least one photocurable printing blank to actinic radiation at the customer's location to crosslink and cure portions of the at least one photocurable material and create a relief image therein. A lamination system is also described.
    Type: Grant
    Filed: February 10, 2016
    Date of Patent: March 27, 2018
    Inventor: Ryan W. Vest
  • Patent number: 9902867
    Abstract: Disclosed herein are sacrificial coating compositions comprising at least one hydrophilic polymer; at least one hygroscopic agent; at least one surfactant; at least one non-reactive silicone release agent; and water. In certain embodiments, the at least one non-reactive silicone release agent is chosen from polyether modified polysiloxane and nonreactive silicone glycol copolymers. In certain embodiments, the at least one non-reactive silicone release agent may be present in an amount ranging from about 0.001% to about 2%, based on the total weight of the composition, such as from about 0.03% to about 0.06%. Also disclosed herein is a blanket material suitable for transfix printing comprising a sacrificial coating composition, as well as an indirect printing process comprising a step of applying a sacrificial coating composition to a blanket material.
    Type: Grant
    Filed: June 13, 2016
    Date of Patent: February 27, 2018
    Assignee: XEROX CORPORATION
    Inventors: Guiqin Song, Suxia Yang, Gordon Sisler, Edward G. Zwartz
  • Patent number: 9556514
    Abstract: Deposition of material is performed on a substrate by causing short-distance reciprocating motions of the substrate that improve uniformity of material on the substrate. A series of reactors for injecting material onto the substrate is arranged along the length of the substrate in a repeating manner. During each reciprocating motion, the susceptor moves a distance shorter than an entire length of the substrate. Portions of the substrate are injected with materials by a subset of reactors. Since the movement of the substrate is smaller, a linear deposition device including the susceptor may be made smaller.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: January 31, 2017
    Assignee: Veeco ALD Inc.
    Inventors: Jeong Ah Yoon, Suk Yal Cha, Seung Yeop Baek, Daniel H. Lee, Samuel S. Pak, Daniel Yang, Sang In Lee
  • Patent number: 9522263
    Abstract: Disclosed are devices for delivering a rheumatoid arthritis drug across a dermal barrier. The devices include microneedles for penetrating the stratum corneum and also include structures fabricated on a surface of the microneedles to form a nanotopography. A random or non-random pattern of structures may be fabricated such as a complex pattern including structures of differing sizes and/or shapes. The pattern of structures on the surface of the microneedles may include nano-sized structures.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: December 20, 2016
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventor: Russell Frederick Ross
  • Patent number: 9352544
    Abstract: Provided is a process for dry, solvent free, transfer of solid material onto a flexographic plate.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: May 31, 2016
    Assignee: DIGIFLEX LTD.
    Inventors: Moshe Frenkel, Michael Letuchi, Artem Zhilin, Yacov Mazuz
  • Patent number: 9340922
    Abstract: A method of preparing a material having a superhydrophobic region and a hydrophobic region is described, involving preparing a superhydrophobic surface body and hydrolyzing one surface of the prepared superhydrophobic surface body using a strong base. Such preparation method is simpler than conventional preparation methods and is capable of preparing a material having opposite surface characteristics at low costs.
    Type: Grant
    Filed: April 23, 2014
    Date of Patent: May 17, 2016
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Sung Gap Im, Jae Bem You, Youngmin Yoo, Myung Seok Oh
  • Patent number: 9329479
    Abstract: A negative-working lithographic printing plate precursor includes a coating containing a photopolymerizable layer and optionally an intermediate layer between the photopolymerizable layer and the support, wherein the coating further includes a polysiloxane, the polysiloxane being present in the photopolymerizable layer and/or in the optional intermediate layer, and the polysiloxane is obtained by reacting at least one organosilicon compound represented by the general Formula (I) and at least one organosilicon compound represented by the general Formula (II):
    Type: Grant
    Filed: March 20, 2013
    Date of Patent: May 3, 2016
    Assignee: AGFA GRAPHICS NV
    Inventors: Johan Loccufier, Marin Steenackers, Sam Verbrugghe
  • Patent number: 9329485
    Abstract: Lithographic printing plates are provided by imagewise exposing negative-working lithographic printing plate precursors having a negative-working radiation-sensitive imageable layer, followed by contacting with a processing solution that has a pH of at least 7 and up to and including 11. This processing solution also includes component (1) that is a nitrogen-containing base having an atmospheric pressure melting point of at least 40° C.; component (2) that is a non-ionic surfactant that independently has an atmospheric pressure melting point, glass transition temperature, or pour point of at least 40° C.; component (3) that is a hydroxy-containing solution promoter; and component (4) that is a hydrophilic surface protective compound. The method is carried out in a manner such that the exposed and processed precursor is not further treated with any liquid (such as gumming or rinsing solution) between processing and mounting onto a printing press.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: May 3, 2016
    Assignee: EASTMAN KODAK COMPANY
    Inventors: Christopher D. Simpson, Harald Baumann, Michael Flugel, Saija Werner, Oliver Piestert, Udo Dwars
  • Patent number: 9250524
    Abstract: The present invention relates to a positive working lithographic printing plate precursor, comprising: (1) a substrate; and (2) an imaging layer, formed on the substrate, comprising a water-insoluble and an alkaline aqueous solution-soluble or dispersible resin and a photo-thermal converting material, wherein the imaging layer comprises either polyurethane or polyurethane urea or both of the polyurethane and the polyurethane urea, the polyurethane and the polyurethane urea comprising a unit having a substituent having an acidic hydrogen atom and a unit having a polysiloxane moiety in a side or main chain. The present invention can provide a lithographic printing plate precursor which has high printing durability, good scratch resistance, and good developing properties, as well as enhanced ink receptivity.
    Type: Grant
    Filed: October 30, 2012
    Date of Patent: February 2, 2016
    Assignee: EASTMAN KODAK COMPANY
    Inventors: Motohiro Tsushima, Yasuhiro Asawa
  • Patent number: 9249504
    Abstract: A method of making an electrical conductor includes depositing an ultra-thin layer including aluminum-doped zinc oxide layer on a surface and using atomic layer deposition to deposit a nano-layer including alumina in contact and conformal with a surface of the ultra-thin layer including aluminum-doped zinc oxide.
    Type: Grant
    Filed: September 26, 2013
    Date of Patent: February 2, 2016
    Assignee: EASTMAN KODAK COMPANY
    Inventors: Mitchell Stewart Burberry, Lee William Tutt
  • Patent number: 9250521
    Abstract: A positive-working lithographic printing plate precursor exhibits satisfactory developability and has long print run length, satisfactory scratch resistance, and exhibits improved ink receptivity. This precursor has an image forming layer comprising a water-insoluble and alkali-soluble or alkali-dispersible resin. The image forming layer comprises at least a lower layer and an upper layer. A resin in at least one of the lower layer and the upper layer is a polyurethane including a recurring unit comprising a substituent having an acidic hydrogen atom and a recurring unit represented by the following formula: wherein Rf is an alkyl or polyether group in which at least 50% of hydrogen atoms have been fluorinated, R1 is a hydrogen atom, or a substituted or non-substituted alkyl group, m is 0 or 1 to 10, n is 1 to 30, and x is 1 to 4.
    Type: Grant
    Filed: October 30, 2012
    Date of Patent: February 2, 2016
    Assignee: EASTMAN KODAK COMPANY
    Inventors: Masamichi Kamiya, Yasuhiro Asawa, Yasushi Miyamoto, Maru Aburano, Eiji Hayakawa
  • Patent number: 9212244
    Abstract: The present invention relates to curable mixtures for the sealing, encapsulation, bonding or coating of opto-electronic components, such as OLEDs, solar cells, optical sensors and liquid-crystal displays, or for the alignment of liquid crystals. The mixtures comprise in total at least 50 percent by weight of vinyl ethers.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: December 15, 2015
    Assignee: MERCK PATENT GESELLSCHAFT MIT BESCHRANKTER HAFTUNG
    Inventors: Matthias Koehler, Volker Meyer, Edgar Boehm, Michael Junge, Eike Poetsch
  • Patent number: 9164378
    Abstract: The objective is to provide a direct drawing-type waterless lithographic printing original plate which is highly sensitive and is not susceptible to formation of blisters, namely a direct drawing-type waterless lithographic printing original plate which has a wide latitude. Provided is a direct drawing-type waterless lithographic printing original plate which has at least a heat-sensitive layer and a silicone rubber layer on a substrate in this order. The direct drawing-type waterless lithographic printing original plate is characterized in that the heat-sensitive layer contains non-photosensitive particles and the average particle diameter of the non-photosensitive particles is not less than ½ of the average film thickness of a portion of the heat-sensitive layer where the non-photosensitive particles are not present.
    Type: Grant
    Filed: September 16, 2011
    Date of Patent: October 20, 2015
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Akihiro Iihara, Yasunori Kuse, Yuta Shuto, Satoshi Yoshida, Kazuki Goto
  • Patent number: 9139748
    Abstract: A photocurable ink composition for inkjet printing is obtained that has superior curability with respect to light from a light-emitting diode, has favorable adhesion to a polyvinyl chloride-based sheet, and is able to adequately inhibit the occurrence of cockling.
    Type: Grant
    Filed: June 14, 2010
    Date of Patent: September 22, 2015
    Assignee: Sakata Inx Corp.
    Inventors: Shinya Mizutani, Tatsuro Tsuchiya, Taichi Ono
  • Patent number: 9040219
    Abstract: The invention provides an infrared-sensitive positive-working image forming material which provides excellent development latitude, image formability and image region strength, and in which decrease in development property is prevented even when a certain time has passed after pattern exposure until development treatment; an infrared-sensitive positive-working planographic printing plate precursor which is formed from the image forming material and has excellent image formability and image region printing durability; and a method for manufacturing a planographic printing plate using the planographic printing plate precursor. The image forming material includes; on a support, a lower layer containing a polymer having carboxylic acid groups at side chains thereof, at least a part of the carboxylic acid groups forming a salt structure with a monovalent basic compound, and an infrared absorbing agent; and an upper layer whose solubility to aqueous alkaline solution is increased by heat, in this order.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: May 26, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Yoshinori Taguchi, Noriaki Watanabe, Shigekatsu Fujii, Shigefumi Kanchiku
  • Patent number: 9029063
    Abstract: A lithographic printing plate precursor comprises an imagable layer comprising a free radically polymerizable component, an initiator composition capable of generating free radicals upon exposure to imaging infrared radiation, an infrared radiation absorbing dye comprising an infrared radiation absorbing cation and a counter anion, and a polymeric binder. The salt formed between the infrared radiation absorbing cation and a tetraphenyl borate has solubility in 2-methoxy propanol at 20° C. that is greater than or equal to 3.5 g/l. The use of these infrared radiation absorbing dyes in the imagable layers provides a reduced tendency of these dyes to crystallize in the presence of tetraaryl borate counter anions.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: May 12, 2015
    Assignee: Eastman Kodak Company
    Inventors: Domenico Balbinot, Harald Baumann, Udo Dwars, Mathias Jarek, Christopher D. Simpson
  • Patent number: 9029066
    Abstract: A positive-working lithographic printing plate precursor which comprises on a support having a hydrophilic surface or which is provided with a hydrophilic layer, a heat and/or light-sensitive coating comprising an infrared adsorbing agent and a binder including a monomeric unit including a salicylic acid group and a monomeric unit including a sulfonamide group.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: May 12, 2015
    Assignee: Agfa Graphics NV
    Inventors: Johan Loccufier, Philippe Moriame
  • Publication number: 20150125795
    Abstract: The present invention provides a novel low pH developing solution which does not contain an inorganic strong alkali component.
    Type: Application
    Filed: June 27, 2013
    Publication date: May 7, 2015
    Inventor: Yasushi MIYAMOTO
  • Patent number: 8993213
    Abstract: Positive-working lithographic printing plate precursors have an inner layer that includes a polymeric binder having an acid number of at least 30 mg KOH/g of polymer to and including 150 mg KOH/g of polymer, at least 3 weight % of recurring units derived from one or more N-alkoxymethyl(alkyl)acrylamides or alkoxymethyl(alkyl)acrylates, at least 2 weight % of recurring units having pendant 1H-tetrazole groups, and at least 10 weight % of recurring units having pendant cyano groups. The use of such polymeric binders in the inner layer provides good bakeability and chemical solvent resistance. Such positive-working lithographic printing plate precursors also include an outer layer disposed over the inner layer, which outer layer comprises an infrared radiation absorbing compound.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: March 31, 2015
    Assignee: Eastman Kodak Company
    Inventors: Celin Savariar-Hauck, Gerhard Hauck
  • Patent number: 8993216
    Abstract: A method for producing a planographic printing plate is provided, which includes: subjecting a planographic printing plate precursor to image-wise exposure, wherein the precursor includes plural recording layers at least one of which contains (A) an infrared absorbing agent on a support, the upper recording layer contains (B) a water-insoluble and alkali-soluble polymer compound having a repeating unit containing a fluoroalkyl group or a siloxane structure; and developing the precursor using an alkali developer containing (C)an ammonium salt compound of Formulae (C-1) to (C-3), wherein R1 represents a methyl group or an ethyl group, R2 and R3 represent a hydrocarbon group having 3 to 20 carbon atoms, R4 represents a hydrocarbon group, A represents an atomic group which forms a nitrogen-containing aliphatic ring with N+, B represents an atomic group which forms a nitrogen-containing aromatic ring with N+, and X?represents a counter anion.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: March 31, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Yoichiro Ara, Shigekatsu Fujii, Norio Aoshima
  • Patent number: 8978554
    Abstract: An alkali soluble resin is disclosed comprising a first monomeric unit including at least one sulfonamide group and a second monomeric unit derived from the monomer according to the following structure (I) wherein R1 represents a structural moiety comprising an ethylenically unsaturated polymerizable group; R2, R3 and R4 independently represent hydrogen, an optionally substituted alkyl, alkenyl, alkynyl, alkaryl, aralkyl, aryl or heteroaryl group or, the necessary atoms to form a five to eight membered ring.
    Type: Grant
    Filed: January 12, 2010
    Date of Patent: March 17, 2015
    Assignee: Agfa Graphics N.V.
    Inventors: Johan Loccufier, Philippe Moriamé, Stefaan Lingier
  • Publication number: 20150072289
    Abstract: Positive-working lithographic printing plate precursors have an inner layer that includes a polymeric binder having an acid number of at least 30 mg KOH/g of polymer to and including 150 mg KOH/g of polymer, at least 3 weight % of recurring units derived from one or more N-alkoxymethyl(alkyl)acrylamides or alkoxymethyl(alkyl)acrylates, at least 2 weight % of recurring units having pendant 1H-tetrazole groups, and at least 10 weight % of recurring units having pendant cyano groups. The use of such polymeric binders in the inner layer provides good bakeability and chemical solvent resistance. Such positive-working lithographic printing plate precursors also include an outer layer disposed over the inner layer, which outer layer comprises an infrared radiation absorbing compound.
    Type: Application
    Filed: July 12, 2013
    Publication date: March 12, 2015
    Inventors: Celin Savariar-Hauck, Gerhard Hauck
  • Publication number: 20150044612
    Abstract: Lithographic printing plates and processes for preparing the lithographic printing plates are provided. The plates have excellent printing durability, staining resistance and staining resistance over time. The lithographic printing plate precursor includes: a substrate; a photosensitive layer provided on the substrate; and an extra layer optionally provided between the substrate and the photosensitive layer. The photosensitive layer or the extra layer adjacent to the substrate contains (A) a copolymer. The copolymer (A) includes: (a1) a repeating unit of formula (a1-1) below in a side chain, and (a2) a repeating unit having at least one of the structures represented by formulae (a2-1) to (a2-6) shown in the specification in a side chain. L1, Z1, R1, and R21, R22 and R23 in formula (a1-1) and the variables in formulae (a2-1) to (a2-6) are as defined in the specification.
    Type: Application
    Filed: October 21, 2014
    Publication date: February 12, 2015
    Applicant: FUJIFILM CORPORATION
    Inventor: Hiroyuki SUZUKI
  • Patent number: 8940474
    Abstract: A silicate-free alkaline aqueous developer composition has a pH of at least 12 and comprises a hydroxide alkali agent, a metal cation M2+ selected from barium, calcium, strontium, and zinc cations, a chelating agent for the metal cation, and an alkali metal salt that is different than the other components. These developer compositions can be used to process imaged positive-working lithographic printing plate precursors to prepare lithographic printing plates.
    Type: Grant
    Filed: April 3, 2013
    Date of Patent: January 27, 2015
    Assignee: Eastman Kodak Company
    Inventors: Moshe Levanon, Leonid Askadsky
  • Patent number: 8939080
    Abstract: A method is used to prepare lithographic printing plates by developing positive-working lithographic printing plate precursor that has a single imageable layer that comprises a polymer binder having recurring units represented by Structure (Ib) below: wherein the recurring units of Structure (Ib) are present in an amount of at least 25 and up to and including 60 mol %, all based on total recurring units in the polymer binder, and R2 is a substituted or unsubstituted hydroxyaryl group in which the hydroxyl group is ortho to the ester linkage, to form exposed and non-exposed regions in the imageable layer. The resulting imaged lithographic printing plate is developed using a silicate-free developer composition having a pH of at least 12 and comprising at least 0.001 gram-atom/kg of a metal cation M2+ selected from the group consisting of barium, calcium, strontium, and zinc cations.
    Type: Grant
    Filed: November 18, 2010
    Date of Patent: January 27, 2015
    Assignee: Eastman Kodak Company
    Inventors: Moshe Levanon, Jianbing Huang, Leonid Askadsky
  • Patent number: 8936902
    Abstract: An infrared radiation-sensitive positive-working imageable element has a substrate and single imageable layer that includes a first polymeric binder having urethane or urea moieties in its backbone. The first polymeric binder is also insoluble in water and soluble in a weakly alkaline solution. This imageable element can be imaged and processed using weakly alkaline processing solutions that are free of silicates and metasilicates, which processing solutions may also be used to “gum” the imaged and developed printing surface.
    Type: Grant
    Filed: November 20, 2008
    Date of Patent: January 20, 2015
    Assignee: Eastman Kodak Company
    Inventors: Anthony P. Kitson, Kevin B. Ray, Shashikant Saraiya, Frederic E. Mikell, Jayanti Patel
  • Patent number: 8934259
    Abstract: A method for fabricating a substrate having transferable chiplets includes forming a photo-sensitive adhesive layer on a process side of a source substrate including active components or on a patterned side of a transparent intermediate substrate. The intermediate substrate is brought into contact with the source substrate to adhere the active components on the process side to the patterned side of the intermediate substrate via the photo-sensitive adhesive layer therebetween. Portions of the source substrate opposite the process side thereof are removed to singulate the active components. Portions of the photo-sensitive adhesive layer are selectively exposed to electromagnetic radiation through the intermediate substrate to alter an adhesive strength thereof. Portions of the photo-sensitive adhesive layer having a weaker adhesive strength are selectively removed to define breakable tethers comprising portions of the adhesive layer having a stronger adhesive strength.
    Type: Grant
    Filed: June 7, 2012
    Date of Patent: January 13, 2015
    Assignee: Semprius, Inc.
    Inventors: Christopher Bower, Joseph Carr
  • Patent number: 8927193
    Abstract: To provide a coloring photosensitive composition and a lithographic printing plate precursor, ensuring that coloring stability after exposure by infrared laser exposure is good and high coloring is obtained even when exposed after the elapse of time. These can be a coloring photosensitive composition containing a microgel encapsulating (A) a polymer having a glass transition temperature of 50° C. or more, (B) a photoinitiator, and (C) an infrared absorbing dye, and a lithographic printing plate precursor having an image-recording layer containing the composition.
    Type: Grant
    Filed: March 15, 2011
    Date of Patent: January 6, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Shota Suzuki, Toshihide Aoshima
  • Patent number: 8927195
    Abstract: A photosensitive composition includes (A) a polyurethane obtained by reacting a diol component including a compound represented by the following Formula (I) with a polyisocyanate component; and (B) a photosensitive component. In Formula (I), A represents a single bond, or a divalent linking group including an atom selected from the group consisting of a carbon atom, a hydrogen atom, and an oxygen atoms; B represents a monovalent organic group; each of R1 to R5 independently represents a hydrogen atom or an alkyl group; m represents an integer from 0 to 3; n represents an integer from 0 to 3; and m+n is not zero.
    Type: Grant
    Filed: January 22, 2014
    Date of Patent: January 6, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Yoshinori Taguchi, Takashi Aridomi
  • Patent number: 8927197
    Abstract: A negative-working lithographic printing plate precursor is used for making lithographic printing plates from infrared radiation imaging. The precursor comprises free radical chemistry and a specific infrared radiation absorber that is a cyanine dye and defined by Formula (1a) described in the disclosure. This particular infrared radiation absorber provides both IR sensitivity and print out after imaging.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: January 6, 2015
    Assignee: Eastman Kodak Company
    Inventors: Celin Savariar-Hauck, Martin Heinrich
  • Patent number: 8925457
    Abstract: A printing form includes a bonding layer, an intermediate layer and a top layer. The top layer includes silicon nitride.
    Type: Grant
    Filed: August 13, 2012
    Date of Patent: January 6, 2015
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Harald Latzel, Ralf Niggemann
  • Publication number: 20150004530
    Abstract: A method of manufacturing a flexographic printing plate includes designing a photomask patterned design. The photomask patterned designed is laser-ablated into a thermal imaging layer. The laser-ablated thermal imaging layer is laminated to a top side of a flexographic printing plate substrate. A bottom side of the flexographic printing plate substrate is exposed to UV-A radiation. The top side of the flexographic printing plate substrate is exposed to UV-A radiation. The thermal imaging layer is removed. The flexographic printing plate substrate is developed. A flexographic printing system for printing a photomask includes an ink roll, an anilox roll, a printing plate cylinder, a flexographic printing plate disposed on the printing plate cylinder, and an impression cylinder. The flexographic printing plate comprises embossing patterns corresponding to a photomask patterned design. The flexographic printing plate may be used in a flexographic printing system to manufacture a photomask with flexography.
    Type: Application
    Filed: June 27, 2013
    Publication date: January 1, 2015
    Applicant: UNI-PIXEL DISPLAYS, INC.
    Inventors: Ed S. Ramakrishnan, Robert J. Petcavich
  • Patent number: 8921033
    Abstract: By a method of preparing a lithographic printing plate having exposing a lithographic printing plate precursor including a photosensitive layer containing (A) a polymerization initiator, (B) a polymerizable compound, (C) a sensitizing dye and (D) a binder polymer and a protective layer in this order on a hydrophilic support with laser and then removing the protective layer and an unexposed area of the photosensitive layer in the presence of a developer, in which the developer is a developer which has pH of from 2 to less than 10 and contains an amphoteric surfactant and a nonionic surfactant having an alkylene oxide chain, a simple processing of one solution and one step which does not require a water washing step becomes possible, excellent development property is achieved and a lithographic printing plate which has good printing durability and does not cause printing stain can be provided.
    Type: Grant
    Filed: February 22, 2011
    Date of Patent: December 30, 2014
    Assignee: FUJIFILM Corporation
    Inventor: Toshifumi Inno
  • Publication number: 20140377705
    Abstract: Disclosed is a lithographic printing plate allowing for high running performance of the developer, wide water window and high printing durability. The lithographic printing plate precursor comprises a photosensitive layer on a support, wherein the photosensitive layer comprises (A) a polymerizable compound, (B) a polymerization initiator, (C) a polyvinyl acetal binder containing at least one kind of repeat units represented by general formula (I-c), general formula (I-b) and general formula (I-a), and (D) an acrylic resin binder.
    Type: Application
    Filed: August 25, 2014
    Publication date: December 25, 2014
    Applicant: FUJIFILM Corporation
    Inventors: Ichiro KOYAMA, Junya ABE
  • Publication number: 20140370443
    Abstract: It is an object of the present invention to provide a plate surface protecting liquid composition which enables an improvement in adhesion of a printing ink onto a lithographic printing plate at the beginning of printing, and to provide a method for treating a lithographic printing plate using the plate surface protecting liquid composition, which can reduce the generation of waste paper immediately after the beginning of printing. Disclosed is a plate surface protecting liquid composition for lithographic printing plate, including a polysiloxane compound having a polyether chain in the side-chain.
    Type: Application
    Filed: December 4, 2012
    Publication date: December 18, 2014
    Inventors: Shoichi Hotate, Maru Aburano
  • Patent number: 8900798
    Abstract: On-press developable, negative-working, infrared radiation-sensitive lithographic printing plate precursors have an imageable layer on a substrate. The imageable layer includes a free radically polymerizable component, an initiator composition capable of generating free radicals upon exposure to infrared radiation, a polymeric binder, a first infrared radiation absorbing compound that has a tetraaryl pentadiene chromophore, and a second infrared radiation absorbing compound that is different than the first infrared radiation absorbing compound. The first IR absorbing compound absorbs in both the IR and visible regions of the electromagnetic spectrum and provides coloration for visual inspection of the lithographic printing plates.
    Type: Grant
    Filed: October 18, 2010
    Date of Patent: December 2, 2014
    Assignee: Eastman Kodak Company
    Inventors: Celin Savariar-Hauck, Gerhard Hauck
  • Publication number: 20140349234
    Abstract: The present invention relates to a positive working lithographic printing plate precursor, comprising: (1) a substrate; and (2) an imaging layer, formed on the substrate, comprising a water-insoluble and an alkaline aqueous solution-soluble or dispersible resin and a photo-thermal converting material, wherein the imaging layer comprises either polyurethane or polyurethane urea or both of the polyurethane and the polyurethane urea, the polyurethane and the polyurethane urea comprising a unit having a substituent having an acidic hydrogen atom and a unit having a polysiloxane moiety in a side or main chain. The present invention can provide a lithographic printing plate precursor which has high printing durability, good scratch resistance, and good developing properties, as well as enhanced ink receptivity.
    Type: Application
    Filed: October 30, 2012
    Publication date: November 27, 2014
    Inventors: Motohiro Tsushima, Yasuhiro Asawa
  • Patent number: 8895224
    Abstract: Lithographic printing plates and processes for preparing the lithographic printing plates are provided. The plates have excellent printing durability, staining resistance and staining resistance over time. The lithographic printing plate precursor includes: a substrate; a photosensitive layer provided on the substrate; and an extra layer optionally provided between the substrate and the photosensitive layer. The photosensitive layer or the extra layer adjacent to the substrate contains (A) a copolymer. The copolymer (A) includes: (a1) a repeating unit of formula (a1-1) below in a side chain, and (a2) a repeating unit having at least one of the structures represented by formulae (a2-1) to (a2-6) shown in the specification in a side chain. L1, Z1, R1, and R21, R22 and R23 in formula (a1-1) and the variables in formulae (a2-1) to (a2-6) are as defined in the specification.
    Type: Grant
    Filed: August 26, 2013
    Date of Patent: November 25, 2014
    Assignee: FUJIFILM Corporation
    Inventors: Hiroyuki Suzuki, Junya Abe, Takafumi Nakayama, Kohei Takeshita
  • Patent number: 8889340
    Abstract: A method for making a lithographic printing plate is disclosed which comprises the steps of: (1) providing a heat-sensitive lithographic printing plate precursor comprising on a support having a hydrophilic surface or which is provided with a hydrophilic layer, a heat-sensitive coating, (2) image-wise exposing said precursor with IR-radiation or heat, and (3) developing said image-wise exposed precursor with an alkaline developing solution, characterised in that a sludge inhibiting agent is present in said precursor or in said developing solution or in said precursor and said developing solution, and wherein said sludge inhibiting agent is a triazaindolisine compound. According to the above method, the formation of sludge is inhibited or reduced.
    Type: Grant
    Filed: August 13, 2008
    Date of Patent: November 18, 2014
    Assignee: Agfa Graphics, N.V.
    Inventors: Johan Loccufier, Stefaan Lingier, Mark Lens
  • Patent number: 8889341
    Abstract: A negative-working lithographic printing plate precursor comprises a negative-working radiation-sensitive imageable layer and an outermost layer comprising a vinyl alcohol copolymer comprising at least one unit of each of the (a), (b), and (c) recurring units, in any order, defined in the disclosure. The (c) recurring units are present in the vinyl alcohol copolymer in an amount of at least 0.5 mol %, based on the total recurring units. These precursors can be used to prepare lithographic printing plates either on-press or off-press after imaging using near-UV, visible, or infrared radiation.
    Type: Grant
    Filed: August 22, 2012
    Date of Patent: November 18, 2014
    Assignee: Eastman Kodak Company
    Inventors: Saija Werner, Harald Baumann, Udo Dwars, Christopher D. Simpson, Axel Draber
  • Patent number: 8883401
    Abstract: A presensitized plate having a long press life and excellent resistance to scum and corrosive micro-stains and capable of on-press development is provided. The presensitized plate includes a photosensitive layer containing (A) a sensitizing dye, (B) a polymerization initiator, (C) a polymerizable compound, and (D) a binder polymer; and a protective layer which are formed on a support in this order. The support is prepared from an aluminum alloy plate containing intermetallic compound particles with a circle equivalent diameter of 0.2 ?m or more at a surface density of 35,000 pcs/mm2 or more and aluminum carbide particles with a maximum length of 1 ?m or more in an amount of up to 30,000 pcs/g.
    Type: Grant
    Filed: September 7, 2010
    Date of Patent: November 11, 2014
    Assignee: FUJIFILM Corporation
    Inventors: Atsushi Matsuura, Hirokazu Sawada, Akio Uesugi
  • Patent number: 8877426
    Abstract: A printing plate comprises a substantially planar substrate, a porous non-anodic ungrained coating, having a thickness within the range of about 0.1 to about 30 microns and comprising at least one of metals, metal oxides and admixtures thereof, and an image recording layer, provided that where the porous coating consists essentially of oxide(s) only, it comprises at least one oxide of copper, magnesium, cadmium, aluminum, zirconium, hafnium, thorium, chromium, tungsten, molybdenum and (or) cobalt, and further provided that where the porous coating consists essentially of alumina only, it comprises specified pores. The invention also relates to an article of manufacture having a nanometric porous surface layer comprising at least one of metals, metal oxides and mixtures thereof, which comprises pores in the surface layer having a width in a range 0-100 nm, and wherein a major number of pores in this range have a width in a band of about 1 to about 30 nm.
    Type: Grant
    Filed: October 3, 2005
    Date of Patent: November 4, 2014
    Assignee: Acktar Ltd.
    Inventors: Dina Katsir, Zvi Finkelstein, Yuri Zarnitsky
  • Publication number: 20140322646
    Abstract: A positive-working, ablation-imagable lithographic printing plate precursor can be imaged and used for lithographic printing without wet processing. This precursor has a sulfuric acid or phosphoric acid anodized aluminum-containing substrate, a crosslinked hydrophilic inner layer comprising a crosslinked polymer derived by using a crosslinking agent that comprises at least two aldehyde groups, and an acidic compound. Over the crosslinked hydrophilic inner layer is an oleophilic outer layer comprising an infrared radiation absorber and an oleophilic polymer. The precursor also has a copolymer comprising randomly recurring units derived from each of a (meth)acrylamide and vinyl phosphonic acid. This copolymer is present either within the crosslinked hydrophilic inner layer, as part of a different copolymer layer between the crosslinked hydrophilic inner layer and the substrate, or in both places.
    Type: Application
    Filed: April 25, 2013
    Publication date: October 30, 2014
    Inventors: Moshe Nakash, Daniel Weizman
  • Patent number: 8846299
    Abstract: A lithographic processing solution has a pH of less than 12 and comprises at least 0.001 and up to and including 1 weight % of a water-soluble or water-dispersible, non-IR-sensitive compound that has a heterocyclic moiety with a quaternary nitrogen in the 1-position of the heterocyclic ring, and has one or more electron donating substituents attached to the heterocyclic ring, at least one of which electron donating substituents is attached in the 2-position. This processing solution can be used to develop both single-layer and multi-layer positive-working lithographic printing plate precursors that have been imaged using infrared radiation.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: September 30, 2014
    Assignee: Eastman Kodak Company
    Inventors: Celin Savariar-Hauck, Gerhard Hauck, Moshe Nakash
  • Patent number: 8846300
    Abstract: To provide a developer for processing of a lithographic printing plate precursor, containing a non-reducing sugar having bonded therein two or more monosaccharides and having a pH of 6 to 14 and thereby provide a developer having a pH stable to aging and an excellent film-forming property, a method for manufacturing a lithographic printing plate, where a lithographic printing plate excellent in developability and dispersibility of development scum and kept from staining of the non-image area can be manufactured even by simple processing of one solution and one step requiring no water washing step, a developer used therefor, and a printing method of performing printing by using the manufacturing method of a lithographic printing plate.
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: September 30, 2014
    Assignee: FUJIFILM Corporation
    Inventors: Takashi Sato, Toshifumi Inno