Making Printing Plates Patents (Class 430/300)
  • Patent number: 9661754
    Abstract: Substrates, such as printed circuit boards, are coated with an aqueous alkaline developable UV photosensitive material followed by applying an aqueous soluble UV transparent film to coat the UV photosensitive material. An aqueous alkaline soluble UV blocking composition is selectively applied to the surface of the UV blocking film to function as a mask. UV light is applied to portions of the UV photosensitive material not covered by the mask. The UV blocking composition, UV transparent film and selective sections of the UV photosensitive material are simultaneously removed with an aqueous alkaline developer solution to form an image on the substrate.
    Type: Grant
    Filed: June 1, 2015
    Date of Patent: May 23, 2017
    Assignee: Rohm and Haas Electronic Materials LLC
    Inventors: Krishna Balantrapu, Brian D. Amos, Stephen McCammon
  • Patent number: 9622353
    Abstract: Substrates, such as printed circuit boards, are coated with an aqueous alkaline developable UV photosensitive material followed by applying an aqueous soluble UV transparent film to coat the UV photosensitive material. An aqueous alkaline strippable UV blocking composition is selectively applied to the surface of the UV transparent film to function as a mask. UV light is applied to portions of the UV photosensitive material not covered by the mask. The UV blocking composition, UV transparent film and selective sections of the UV photosensitive material are simultaneously removed with an aqueous alkaline developer solution to form an image on the substrate.
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: April 11, 2017
    Assignee: Rohm and Haas Electronic Materials LLC
    Inventors: Krishna Balantrapu, Brian D. Amos, Stephen McCammon
  • Patent number: 9599902
    Abstract: Laminate comprising a) a photopolymerizable relief-forming layer, at least containing an elastomeric binder, ethylenically unsaturated monomers and a photoinitiator and optionally further additives, b) an optionally photopolymerizable elastomeric substrate layer, at least containing an elastomeric binder, optionally ethylenically unsaturated monomers and a photoinitiator and optionally further additives, the relief-forming layer a) having a hardness of 30 to 70° Shore A and the elastomeric substrate layer b) having a hardness of 75° Shore A to 70° Shore D in each case in the photopolymerized state, and the layer b) having a hardness of at least 5° Shore A greater than the layer a).
    Type: Grant
    Filed: June 18, 2007
    Date of Patent: March 21, 2017
    Assignee: Flint Group Germany GmbH
    Inventors: Armin Becker, Uwe Stebani, Jens Schadebrodt, Uwe Krauss
  • Patent number: 9463595
    Abstract: The invention relates to a processing apparatus for processing a flexographic plate. The apparatus comprises a supporting unit for supporting a flexographic plate including a relief layer containing a photosensitive material, the plate further including, on the relief layer, a carbon layer that is impenetrable for UV light. The apparatus also comprises an optical system for locally ablating the carbon layer for forming a pattern in the carbon layer that is penetrable for UV light, and for polymerizing at least a top part of the relief layer under the carbon pattern layer. Thereto, the optical system includes a single radiation source for both locally ablating the carbon layer and for polymerizing at least a top part of the relief layer.
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: October 11, 2016
    Assignee: XEIKON PREPRESS N.V.
    Inventors: Dirk de Rauw, Bart Marc Luc Wattyn
  • Patent number: 9389440
    Abstract: A light-scattering photonic material is disclosed having a matrix defining a plurality of disordered voids. The material may be reversibly responsive to an external stimulus, exhibiting reversible first and second optical effects. The material may be a thin film material.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: July 12, 2016
    Assignee: OPALUX INCORPORATED
    Inventors: Eric Arsenault, Andre Arsenault
  • Patent number: 9223218
    Abstract: A method of developing a photocurable printing blank to produce a relief pattern comprising a plurality of relief dots having desired characteristics. The photocurable printing blank comprises a backing layer having at least one photocurable layer disposed thereon and a barrier layer disposed on the at least one photocurable layer. The method includes the steps of (1) placing a negative of a desired relief image on top of the barrier layer; (2) exposing the printing blank to actinic radiation through the barrier layer and negative to selectively crosslink and cure portions of the at least one photocurable layer, wherein the at least one photocurable layer is crosslinked and cured in the portions not covered by the negative, thereby creating the relief pattern; and (3) developing the printing blank to remove the barrier layer and uncured portions of the photocurable layer and reveal the relief pattern.
    Type: Grant
    Filed: September 3, 2013
    Date of Patent: December 29, 2015
    Inventors: Ryan W. Vest, David A. Recchia, Timothy Gotsick
  • Patent number: 9086630
    Abstract: A method of thermally developing a photocurable printing blank to produce a relief image comprising a plurality of relief dots is provided. The photocurable printing blank comprises a backing layer having at least one photocurable layer disposed thereon. The method includes the steps of (1) laminating an oxygen barrier membrane to a top of the photocurable layer; (2) placing a negative of the desired relief image on top of the oxygen barrier membrane; (3) exposing the printing blank to actinic radiation through the oxygen barrier and negative to crosslink and cure portions of the at least one photocurable layer, creating the relief pattern; (4) removing the oxygen barrier membrane and negative from the top of the at least one photocurable layer; and (5) developing the printing blank to reveal the relief image. The presence of the oxygen barrier membrane produces dots having desired characteristics. The negative itself can be used as the oxygen barrier layer.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: July 21, 2015
    Inventors: David A. Recchia, Joseph H. Blair, Ryan W. Vest
  • Patent number: 9063417
    Abstract: The present invention relates a printing element comprising at least one polymer layer which has photoimageable constituents and additions to make the polymer layer either hydrophobic or hydrophilic. The printing element may have two polymer layers on a substrate in which one of the layers comprises fluorinated acrylates or methacrylates.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: June 23, 2015
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Graciela Beatriz Blanchet, Gary Delmar Jaycox, Nancy G Tassi
  • Patent number: 9046778
    Abstract: A method of tailoring the shape of a plurality of relief printing dots created in a photosensitive printing blank during a platemaking process is provided. The photocurable layer is exposed to actinic radiation using an array of UV LED light assemblies and the use of the array of UV LED light assemblies produces relief printing dots having at least one geometric characteristic selected from the group consisting of a desired planarity of a top surface of the relief printing dots, a desired shoulder angle of the relief printing dots and a desired edge sharpness of the relief printing dots.
    Type: Grant
    Filed: June 12, 2014
    Date of Patent: June 2, 2015
    Inventor: Kyle P. Baldwin
  • Patent number: 9016199
    Abstract: A system and method of preparing a flexoplate so it is suitable for the printing of high resolution patterns. The method includes controlling the curing conditions of the flexoplate, thereby controlling the properties of said flexoplate such as floor thickness, pattern cross-sectional geometry, repeatability of printed features during the printing process, and durability of the flexoplate during the printing process.
    Type: Grant
    Filed: October 25, 2012
    Date of Patent: April 28, 2015
    Assignee: Unipixel Displays, Inc.
    Inventor: Ed S. Ramakrishnan
  • Publication number: 20150086928
    Abstract: A method of manufacturing a flexographic printing plate includes designing a patterned design that includes a plurality of lines and a plurality of support structures and laser-ablating the patterned design into a thermal imaging layer. A support structure of the plurality of support structures is disposed at an offset relative to a line of the plurality of lines.
    Type: Application
    Filed: September 25, 2013
    Publication date: March 26, 2015
    Applicant: UNI-PIXEL DISPLAYS, INC.
    Inventors: Ed S. Ramakrishnan, Daniel Van Ostrand
  • Publication number: 20150064624
    Abstract: Oxime ester compounds of the formula I, II, III, IV or V, wherein Z is for example (formula A); Z1 for is NO2, unsubstituted or substituted C7-C20aroyl or unsubstituted or substituted C4-C20heteroaroyl; provided that at least one Z1 is other than NO2; Z2 is for example unsubstituted or substituted C7-C20aroyl; R1, R2, R3, R4, R5 and R6 for example are hydrogen, halogen, or unsubstituted or substituted C1-C20alkyl, unsubstituted or substituted C6-C20aryl, or unsubstituted or substituted C4-C20heteroaryl; R9, R10, R11, R12 and R13 for example are hydrogen, halogen, OR16, unsubstituted or substituted C1-C20alkyl; provided that R9 and R13 are neither hydrogen nor fluorine; R14 is for example unsubstituted or substituted C6-C20aryl or C3-C20heteroaryl Q is for example C6-C20arylene or C3-C20heteroarylene; Q1 is —C1-C20alkylene-CO—; Q2 is naphthoylene; Q3 is for example phenylene; L is for example O-alkylene-O—; R15 is for example hydrogen or C1-C20alkyl; R20 is for example hydrogen, or unsubstituted or substituted
    Type: Application
    Filed: May 6, 2013
    Publication date: March 5, 2015
    Applicant: BASF SE
    Inventors: Yuichi Nishimae, Hisatoshi Kura, Kazuhiko Kunimoto, Ryuhei Yamagami, Keita Tanaka
  • Patent number: 8952367
    Abstract: Provided is an organic light emitting element having a high light emission efficiency and a low drive voltage. In the organic light emitting element including a positive electrode, a negative electrode and an organic compound layer disposed between the positive electrode and the negative electrode, the organic compound layer includes a thioxanthone compound represented by the following general formula [1].
    Type: Grant
    Filed: October 31, 2011
    Date of Patent: February 10, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Jun Kamatani, Masanori Seki, Takeshi Sekiguchi, Yosuke Nishide, Akihito Saitoh
  • Patent number: 8921129
    Abstract: A donor substrate includes a base substrate; a light reflection layer on the base substrate and partially overlapping the base substrate; a light-to-heat conversion layer on the base substrate, and including a combination layer including an insulating material and a first metal material; and a transfer layer on the light-to-heat conversion layer. A ratio of the first metal material in the combination layer to the insulating material in the combination layer increases as a distance from the base substrate increases along a thickness direction of the light-to-heat conversion layer.
    Type: Grant
    Filed: October 24, 2013
    Date of Patent: December 30, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Joon Gu Lee, Won Jong Kim, Ji Young Choung, Jin Baek Choi, Yeon Hwa Lee, Hyunsung Bang, Young-Woo Song
  • Publication number: 20140345794
    Abstract: Disclosed herein is a transfer printing technology. A transfer printing substrate includes a plurality of pillar structures and a sacrificial layer applied thereon. In situ alignment of a transfer layer is performed by the pillar structures and a structural confinement by a concave structure formed on a bottom surface of the transfer layer corresponding to the pillar structures, or a chemical bond of the pillar structure and the transfer layer. In the in situ alignment by the structural confinement, the remaining sacrificial layer after being removed may serve as an adhesive component. The transfer process is performed by a separation of the bond by the sacrificial layer, a cutting of the pillar structures in the chemic bonding state of the pillar structures and the transfer layer, or a separation of the bond between the pillar structures and the handling substrate.
    Type: Application
    Filed: December 30, 2013
    Publication date: November 27, 2014
    Applicant: GWANGJU INSTITUTE OF SICENCE AND TECHNOLOGY
    Inventors: Heung Cho KO, Su Ok YUN, Jeong Pil PARK, Suk Ho KIM, Young Kyu HWANG, Yujun HYUN, Hun Soo JANG, Yun Kyung JEONG
  • 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: 8877428
    Abstract: The present invention relates to a printing element comprising at least one polymer layer on a substrate which has photoimageable constituents and a chemically functionalized polymer to make the polymer layer either more hydrophobic or hydrophilic. In one embodiment of the present invention, the printing element comprises two adjacent polymer layers on a substrate in which the photoimaged layer comprises a polymer chemically modified with hydrophobic fluoroalkyl side groups to provide differential wetting with hydrophilic inks.
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: November 4, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: Gary Delmar Jaycox, Graciela Beatriz Blanchet, Nancy G Tassi
  • Patent number: 8867101
    Abstract: Provided is a consumable platemaking material remote administration method which is capable of remotely administrating a consumable platemaking material in each processing device in a fully-automatic platemaking system through a communication network. The consumable platemaking material remote administration method for a processing system for fully-automatic photogravure platemaking includes: providing a central control unit to be connected to the each processing device through a communication line, for receiving status information of a consumable platemaking material in the each processing device; and receiving the status information from the central control unit through a communication network by an external receiving device to remotely administrating the consumable platemaking material.
    Type: Grant
    Filed: October 10, 2012
    Date of Patent: October 21, 2014
    Assignee: Think Laboratory Co., Ltd.
    Inventor: Tatsuo Shigeta
  • Patent number: 8822126
    Abstract: The invention provides a resin composition for laser engraving, having a binder polymer containing at least one of a structure unit represented by the following Formula (I) or a structure unit represented by the following Formula (II). In the Formulae, Q represents a partial structure which provides an acid group having an acid dissociation constant pKa of 0 to 20 when it is in the form of -Q-H; R1 to R3 each independently represent a hydrogen atom or a monovalent organic group; and A and B each independently represent a bivalent organic connecting group. The invention further provides a relief printing plate precursor having a relief forming layer containing the resin composition, a method for manufacturing a relief printing plate having crosslinking components of the relief forming layer and laser engraving the relief forming layer, and a relief printing plate formed thereby.
    Type: Grant
    Filed: February 19, 2009
    Date of Patent: September 2, 2014
    Assignee: FUJIFILM Corporation
    Inventor: Atsushi Sugasaki
  • Patent number: 8794142
    Abstract: The invention relates to a method and apparatus for forming an anilox roll. The method includes supplying a cylinder of the anilox roll that has an outer surface to be tooled, supplying at least a laser source and laser engraving the outer surface of the anilox roll with a laser spot that is formed by a laser source for obtaining a tooled anilox roll, and applying an optical guide in the light path of the laser for enabling the laser spot to move reciprocally on the outer surface to be tooled.
    Type: Grant
    Filed: June 22, 2012
    Date of Patent: August 5, 2014
    Assignee: Apex Europe B.V.
    Inventor: Martinus Adrianus Hendriks
  • Patent number: 8795788
    Abstract: A method for forming a conductive pattern on a substrate (208) includes providing an image pattern for imaging on the substrate; imaging the image pattern on the substrate creating imaged areas; spraying functional material (232) on the substrate that diffuse molecules of the functional material into the imaged areas; and applying electro-less copper coating that build conductive material traces on the imaged areas on the substrate.
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: August 5, 2014
    Assignee: Eastman Kodak Company
    Inventor: Israel Schuster
  • Patent number: 8790862
    Abstract: The invention provides a photosensitive element and a method for preparing a printing form from the element. The photosensitive element includes a layer of a photosensitive composition containing a binder, a monomer, and a Norrish type II photoinitiator, wherein the photosensitive layer has a transmittance to actinic radiation of less than 20% and contains reinforcing particles of graphene and/or carbon nanotubes.
    Type: Grant
    Filed: January 16, 2013
    Date of Patent: July 29, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventor: Adrian Lungu
  • Patent number: 8785108
    Abstract: A structure for pattern formation adapted for optically forming a pattern, characterized by comprising: a photocatalyst-containing layer provided on a substrate, the photocatalyst-containing layer containing a material of which the wettability is variable through photocatalytic action upon pattern-wise exposure.
    Type: Grant
    Filed: October 5, 2007
    Date of Patent: July 22, 2014
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Hironori Kobayashi, Manabu Yamamoto, Daigo Aoki, Hironori Kamiyama, Shinichi Hikosaka, Mitsuhiro Kashiwabara
  • Patent number: 8715901
    Abstract: A resin composition which, in forming a fine pattern by a heat treatment of a resist pattern formed by using a photoresist, can be applied onto the resist pattern, can cause the resist pattern to smoothly shrink by heat treatment, and can be easily washed away by a treatment with an alkaline aqueous solution, and a method for efficiently forming a fine resist pattern using the resin composition are provided. The resin composition comprises a resin containing a hydroxyl group, a crosslinking component, and an alcohol solvent containing water in an amount of 10 wt % or less for the total solvent, wherein the alcohol in the alcohol solvent is a monovalent alcohol having 1 to 8 carbon atoms.
    Type: Grant
    Filed: May 24, 2005
    Date of Patent: May 6, 2014
    Assignee: JSR Corporation
    Inventors: Hirokazu Sakakibara, Takayoshi Abe, Takashi Chiba, Toru Kimura
  • Patent number: 8715908
    Abstract: The invention relates to an imaging element and a method of using the imaging element to form a recording element. The imaging element includes a composition sensitive to actinic radiation from a source of radiation having a range of wavelengths and a photoluminescent tag that is responsive to at least one wavelength from the source of radiation. The photoluminescent tag can be used to authenticate the identity of the element, provide information about the element, and/or to establish one or more conditions in a device used to prepare the recording element from the imaging element.
    Type: Grant
    Filed: September 19, 2011
    Date of Patent: May 6, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventor: Adrian Lungu
  • Publication number: 20140120345
    Abstract: A backing sheet for a flexographic printing plate and a method for manufacturing the backing sheet are provided. The method includes the steps below. A flexible base plate is provided, and an adhesive is coated thereon. The adhesive includes a resin, a photo initiator and a photocurable compound. A first exposure is then performed so as to convert the adhesive to an adhesive layer, in which the conversion rate of the unsaturated groups of the adhesive layer is in a range of 10 to 65%. The backing sheet manufactured by the above-mentioned method is also provided.
    Type: Application
    Filed: May 1, 2013
    Publication date: May 1, 2014
    Applicant: Far Eastern New Century Corporation
    Inventors: Shu-Chuan Liu, Chung-Kai Chang
  • Patent number: 8679726
    Abstract: Negative-working lithographic printing plate precursor a negative-working imagable layer and an outermost water-soluble overcoat layer that is disposed directly on the negative-working imagable layer. The outermost water-soluble overcoat layer comprises: (1) one or more film-forming water-soluble polymeric binders, and (2) organic wax particles dispersed therein. The organic wax particles have an average largest dimension of at least 0.05 ?m and up to and including 0.7 ?m, as determined from a scanning electron micrographic of the dried outermost water-soluble overcoat layer. Useful organic wax particles include fluorinated or non-fluorinated hydrocarbon wax particles.
    Type: Grant
    Filed: May 29, 2012
    Date of Patent: March 25, 2014
    Assignee: Eastman Kodak Company
    Inventors: Domenico Balbinot, Mathias Jarek
  • Patent number: 8663896
    Abstract: A resin composition for laser engraving is provided that includes (Component A) a compound having a hydrolyzable silyl group and/or a silanol group, (Component B) a depolymerization catalyst and/or a depolymerization catalyst precursor, and (Component C) a depolymerizable binder polymer.
    Type: Grant
    Filed: May 6, 2011
    Date of Patent: March 4, 2014
    Assignee: FUJIFILM Corporation
    Inventor: Atsushi Sugasaki
  • Publication number: 20140047992
    Abstract: A system and method of preparing a flexoplate so it is suitable for the printing of high resolution patterns. The method includes controlling the curing conditions of the flexoplate, thereby controlling the properties of said flexoplate such as floor thickness, pattern cross-sectional geometry, repeatability of printed features during the printing process, and durability of the flexoplate during the printing process.
    Type: Application
    Filed: October 25, 2012
    Publication date: February 20, 2014
    Applicant: UNIPIXEL DISPLAYS, INC.
    Inventor: Ed S. Ramakrishnan
  • Patent number: 8652758
    Abstract: Embodiments of the present invention involve printing members that utilize a particle-fusion imaging mechanism but avoid susceptibility to handling damage. In particular, printing plates in accordance with the invention may utilize two phases, and these may originate, during manufacture, as two particle systems. Both systems are initially dispersed in a single coating applied as a layer, or in multiple coatings applied as adjacent layers, on a substrate. The second particle system exhibits a glass-transition or thermal coalescing temperature well above room temperature and also above the temperature at which the coating is dried. The coalescing temperature of the first particle system is below the drying temperature. As a result, when the coating is dried, the first particle system coalesces and forms a binder that entrains the second particle system, which has not coalesced.
    Type: Grant
    Filed: September 16, 2009
    Date of Patent: February 18, 2014
    Assignee: Presstek, Inc.
    Inventors: Frederick R. Kearney, Kevin Ray, Donald Sundberg, John Tsavalas
  • Patent number: 8632956
    Abstract: The present invention provides a process for producing a photosensitive resin plate or relief printing plate having a recessed and projected pattern, which comprises the steps of: making a liquid containing an ink-repellent component (A) and a curing component (B) attach to the plate surface of the photosensitive resin plate or relief printing plate having a recessed and projected pattern prior to the post-treatment step or during the post-treatment step, wherein the ink-repellent component (A) comprises at least one compound selected from the group consisting of silicon-based compounds, fluorine-based compounds and paraffin-based compounds, and provides a treatment liquid which is suitable for the process for producing the photosensitive resin plate or the relief printing plate having the recessed and projected pattern.
    Type: Grant
    Filed: March 12, 2008
    Date of Patent: January 21, 2014
    Assignee: Asahi Kasei E-Materials Corporation
    Inventor: Kazuyoshi Yamazawa
  • Patent number: 8628698
    Abstract: Disclosed is a resin composition for a protective layer of a color filter including an acrylate-based resin including a repeating unit represented by each of Chemical Formulae 1 to 3, a melamine-based resin represented by Chemical Formula 4, a thermal acid generator (TAG), and a solvent.
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: January 14, 2014
    Assignee: Cheil Industries Inc.
    Inventors: Se-Young Choi, Jae-Hyun Kim, Nam-Gwang Kim, Eui-June Jeong, Sang-Kyun Kim, Kwen-Woo Han, Hyun-Hoo Sung
  • Patent number: 8545661
    Abstract: A process for the manufacture of organically developable, photopolymerizable flexographic elements on flexible metallic supports by coating a flexible metallic support with a tack-free adhesive coating composition which is insoluble and non-swelling in printing inks and organic developers, attaching an elastomeric, photopolymerizable layer to a protective film, and laminating the photopolymerizable layer to the metallic support coated with said adhesive coating composition. A photopolymerizable flexographic element comprising a photopolymerizable layer which is attached to a metallic support by means of a tack-free adhesive film that is non-swelling and insoluble in printing inks and organic developers.
    Type: Grant
    Filed: January 17, 2006
    Date of Patent: October 1, 2013
    Assignee: XSYS Print Solutions Deutschland, GmbH
    Inventors: Rolf Knöll, Thomas Telser, Hans Menn
  • Patent number: 8541162
    Abstract: The present invention relates to a printing element comprising at least one polymer layer on a substrate which has photoimagable constituents and a chemically functionalized polymer to make the polymer layer either more hydrophobic or hydrophilic. In one embodiment of the present invention, the printing element comprises two adjacent polymer layers on a substrate in which the photoimaged layer comprises a polymer chemically modified with hydrophobic fluoroalkyl side groups to provide differential wetting with hydrophilic inks.
    Type: Grant
    Filed: September 1, 2010
    Date of Patent: September 24, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Gary Delmar Jaycox, Graciela Beatriz Blanchet, Nancy G. Tassi
  • Publication number: 20130230808
    Abstract: A process for producing a printing plate, includes feeding a developing solution to an exposed photosensitive resin composition layer; passing the developing solution, in which a photosensitive resin composition is dispersed, through a dispersing-object-filter and flocculating the photosensitive resin composition dispersed in the developing solution by the dispersed-object-filter, and removing a flocculated photosensitive resin composition from the developing solution passed through the dispersing-object-filter.
    Type: Application
    Filed: April 18, 2013
    Publication date: September 5, 2013
    Applicant: ASAHI KASEI E-MATERIALS CORPORATION
    Inventors: Kenji SUZUKI, Masafumi SHIBANO
  • Patent number: 8524442
    Abstract: A combined laminating and exposing apparatus for exposing a photosensitive printing blank to actinic radiation in a printing plate manufacturing system and a method of using the same are disclosed. The photosensitive printing blank comprises a backing layer, at least one photocurable layer disposed on the backing layer, and a laser ablatable mask layer disposed on the at least one photocurable layer, wherein the laser ablatable mask layer is laser ablated to create an in situ negative in the laser ablatable mask layer. The exposing apparatus comprises: (a) a laminating apparatus for laminating an oxygen barrier layer to a top of the laser ablated mask layer; (b) a conveyor; (c) a first exposing device for imagewise exposing the at least one photocurable layer to actinic radiation, and (d) a second exposing device for exposing the at least one photocurable layer to actinic radiation through the backing layer.
    Type: Grant
    Filed: February 13, 2012
    Date of Patent: September 3, 2013
    Inventors: David A. Recchia, Kyle P. Baldwin, Timothy Gotsick
  • Patent number: 8486607
    Abstract: A relief (or flexographic) printing precursor has first and second radiation-sensitive layers, or a plurality of radiation-sensitive layers. The first radiation-sensitive layer is sensitive to a first imaging radiation having a first ?max. The second radiation-sensitive layer is disposed on the first radiation-sensitive layer and is sensitive to a second imaging radiation having a second ?max that differs from the first ?max by at least 25 nm. An infrared radiation ablatable layer can be present and is opaque or insensitive to the first and second imaging radiations and contains an infrared radiation absorbing compound. These relief printing precursors can be used to prepare flexographic printing plates, cylinders, or sleeves where the ablatable layer is used to form an integral mask on the element. Use of the invention provides a relief image without any loss in the strength of the small dots and can be carried out using multiple irradiation steps using the same apparatus.
    Type: Grant
    Filed: January 16, 2012
    Date of Patent: July 16, 2013
    Assignee: Eastman Kodak Company
    Inventors: Janos Veres, Kurt M. Sanger
  • Publication number: 20130160665
    Abstract: A plate for producing printer stereotype is provided with a first layer including a first photopolymerisable polymer and with a second layer including a second photopolymerisable polymer. The first photopolymerisable polymer and the second photopolymerisable polymer have a preferably different Shore A hardness degree.
    Type: Application
    Filed: June 17, 2011
    Publication date: June 27, 2013
    Applicant: CIEMMEZETA S.R.L.
    Inventor: Giuseppe Marinelli
  • Patent number: 8465904
    Abstract: The invention provides a method for preparing a printing form from a photopolymerizable element. The photopolymerizable element includes a layer of a photopolymerizable composition containing an elastomeric block copolymer of polystyrene and polybutadiene having less than 15% by weight of 1,2-coupled bond segments in the polybutadiene block, an ethylenically unsaturated compound, and a photoinitiator. The method includes imagewise exposing the photopolymerizable element to actinic radiation in the presence of atmospheric oxygen; heating the element to a temperature sufficient to cause a portion of the layer to liquefy; and contacting an exterior surface of the photopolymerizable element with a development medium to allow at least a portion of the liquefied layer to be removed by the development medium.
    Type: Grant
    Filed: October 9, 2009
    Date of Patent: June 18, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Masayuki Kato, John R. Shock
  • Patent number: 8455177
    Abstract: A method for making a positive-working lithographic printing plate includes the steps of: (1) providing a heat-sensitive printing plate precursor including on a support, having a hydrophilic surface or which is provided with a hydrophilic layer, a heat-sensitive coating; (2) image-wise exposing the precursor with heat and/or light; and (3) developing the exposed precursor with an aqueous alkaline developing solution including lithium ions at a concentration of at least 0.05% wt and a salt of an aliphatic carboxylic acid; wherein the molar ratio of the aliphatic carboxylic acid to the lithium ions is ?1.
    Type: Grant
    Filed: November 4, 2008
    Date of Patent: June 4, 2013
    Assignee: Agfa Graphics NV
    Inventors: Stefaan Lingier, Karen Demmers
  • Patent number: 8445179
    Abstract: A method for treating a lithographic printing plate including the step of applying a liquid containing a surfactant to the plate, characterized in that the surfactant includes at least one hydrophilic segment including polyglycerol, and at least one hydrophobic segment selected from an optionally substituted alkylene group, an alkyl or aryl substituted poly(meth)acrylate, an optionally substituted polyester, polyether, polyurethane, polycarbosilane, polysiloxane, polystyrene and/or a polymer including a perfluoroalkyl group with the proviso that the liquid is not applied as a fountain solution.
    Type: Grant
    Filed: June 10, 2008
    Date of Patent: May 21, 2013
    Assignee: Agfa Graphics NV
    Inventors: Peter Maessen, Hubertus Van Aert
  • Patent number: 8420296
    Abstract: Disclosed is a photosensitive resin composition for a color filter protective layer including a cross-linkable alkali soluble resin including a repeating unit represented by the following Chemical Formula 1, a reactive unsaturated compound, a photopolymerization initiator, and a solvent. In Chemical Formulae 1 to 3, R1 to R6 and A1 to A3 are the same as in the detailed description.
    Type: Grant
    Filed: August 26, 2010
    Date of Patent: April 16, 2013
    Assignee: Cheil Industries Inc.
    Inventors: Jae-Hyun Kim, Se-Young Choi, Nam-Gwang Kim, Eui-June Jeong, Chang-Min Lee
  • Patent number: 8415087
    Abstract: Disclosed is a method of making a lithographic printing plate which includes providing a lithographic printing plate precursor having a coating therein, image-wise exposing the coating, and developing the precursor. The coating includes (i) a contiguous photopolymerizable layer of a photopolymerizable composition or (ii) a contiguous intermediate layer with a photopolymerizable layer of a photopolymerizable composition thereon. The photopolymerizable composition includes a polymerizable compound, a polymerization initiator and a first polymer. The contiguous photopolymerizable layer or the contiguous intermediate layer also includes an adhesion promoting compound and a second polymer.
    Type: Grant
    Filed: November 13, 2008
    Date of Patent: April 9, 2013
    Assignee: AGFA Graphics NV
    Inventors: Alexander Williamson, Christel Geukens, Hubertus Van Aert, Kristof Heylen
  • Patent number: 8377628
    Abstract: A heat-sensitive negative-working lithographic printing plate precursor includes on a grained and anodized aluminum support a coating including hydrophobic thermoplastic polymer particles, a hydrophilic binder, and an organic compound, wherein the organic compound includes at least one phosphonic acid group or at least one phosphoric acid group or a salt thereof.
    Type: Grant
    Filed: April 4, 2006
    Date of Patent: February 19, 2013
    Assignee: Agfa Graphics NV
    Inventors: Pascal Meeus, Joan Vermeersch
  • Patent number: 8367300
    Abstract: A resin composition for laser engraving, including: a binder polymer; and a metal compound containing a metal selected from the group consisting of metals in Group 1 to Group 15 in the periodic table.
    Type: Grant
    Filed: July 3, 2009
    Date of Patent: February 5, 2013
    Assignee: FUJIFILM Corporation
    Inventors: Takashi Kawashima, Atsushi Sugasaki
  • Patent number: 8361702
    Abstract: A resin composition for laser engraving comprising a binder polymer contains at least one polyester (A) selected from the group consisting of a polyester containing a hydroxycarboxylic acid unit, polycaprolactone, poly(butylene succinic acid), and derivatives thereof.
    Type: Grant
    Filed: November 7, 2008
    Date of Patent: January 29, 2013
    Assignee: FUJIFILM Corporation
    Inventor: Atsushi Sugasaki
  • Publication number: 20120322008
    Abstract: Gum solutions are formulated to protect a negative-working photopolymer imaging layer coated on an anodized aluminum substrate that has undergone a post-anodic sealing treatment with inorganic phosphate and inorganic fluoride, followed by development. In various embodiments, the developer and gum solution have different compositions but contain at least one polycarboxylic acid—which may be a polymer—that beneficially desensitizes the surface after the unexposed photopolymer layer is removed.
    Type: Application
    Filed: June 16, 2011
    Publication date: December 20, 2012
    Inventors: Kevin Ray, Frederick Richard Kearney, David B. Baker
  • Patent number: 8318406
    Abstract: A method includes removing the previously imaged area (120) from the flexographic plate (104) to create an opening in the flexographic plate; providing a portion (108) from a flexographic plate built from similar material of the previously imaged flexographic plate; adding adhesive material (116) to the portion or to the opening or to the portion and to the opening; placing the opening within the portion; curing the adhesive material to permanently fix the portion to the flexographic plate; polishing the top (508) of the portion to match to the top surface (504) of the flexographic plate; and imaging the portion.
    Type: Grant
    Filed: February 3, 2010
    Date of Patent: November 27, 2012
    Assignee: Eastman Kodak Company
    Inventor: Kobi Goldstein
  • Publication number: 20120282552
    Abstract: A method for writing an image to a surface of an offset media (100) includes mounting the offset media on the imaging drum (204); imaging on a first part of the surface with high energy radiation to ablate the first part wherein the first part represent non-image data; and imaging a second part of the surface with low energy radiation to fixate image data on the second part.
    Type: Application
    Filed: May 4, 2011
    Publication date: November 8, 2012
    Inventors: Eynat Matzner, Israel Schuster, Moshe Nakash
  • Patent number: 8304165
    Abstract: A heat-sensitive negative-working lithographic printing plate precursor comprising: a support having a hydrophilic surface or which is provided with a hydrophilic layer; and an image-recording layer comprising hydrophobic thermoplastic polymer particles and an infrared light absorbing dye; characterized in that: said image-recording layer further comprises a compound, said compound comprising an aromatic moiety and at least one acidic group or salt thereof and having a most bathochromic light absorption peak at a wavelength between 300 nm and 450 nm.
    Type: Grant
    Filed: October 10, 2007
    Date of Patent: November 6, 2012
    Assignee: AGFA Graphics NV
    Inventors: Hieronymus Andriessen, Paul Callant, Alexander Williamson