Patents Assigned to MacDermid Graphic Arts
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Patent number: 7727439Abstract: A method for making a printing blanket having an outer lithographic layer and at the back, on the side opposite to the lithographic layer, a layer made of polymer material, entails providing polymer material that can be rectified, and then rectifying the polymer material to help control a thickness of the blanket. The invention is useful in the field of printing machines.Type: GrantFiled: November 27, 2002Date of Patent: June 1, 2010Assignee: Macdermid Graphic Arts SAInventors: Jean-Pierre Moscato, José Risquez, Denis Hertzog, Jerzy Kuczynski
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Patent number: 7384685Abstract: The invention concerns a compressible plate for flexographic printing, designed to be positioned on a support cylinder of a printing machine. The invention is characterised in that said plate (1) comprises a photopolymer layer (10) and a compressible layer (11) made of a material exhibiting voids forming between 10 and 60% by volume of said compressible layer, the material comprising at least 70% by weight of a polymer or a mixture of polymers chemically compatible with the photopolymer.Type: GrantFiled: December 27, 2000Date of Patent: June 10, 2008Assignee: Macdermid Graphic Arts S.A.Inventors: Jerzy Kuczynski, Michel Schanen, Laurent Teixera, Gerard Rich, Hugues Serain
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Patent number: 7357078Abstract: A method for making a multilayer printing blanket whereof at least an outer layer is provided with embedded particles has the embedded in the surface of the outer layer by exerting pressure on said particles. Such a printing blanket is useful in the field of printing machines.Type: GrantFiled: November 27, 2002Date of Patent: April 15, 2008Assignee: MacDermid Graphic Arts S.A.Inventor: Denis Hertzog
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Patent number: 7238257Abstract: A method for making a printing blanket resulting from assembling a plurality of layers employs elastomer layers which do not contain thermal cross-linking agents and are of the thermoplastic type. Such a printing blanket is useful in the field of printing machines.Type: GrantFiled: November 27, 2002Date of Patent: July 3, 2007Assignee: Macdermid Graphic Arts S.A.Inventors: José Risquez, Jerzy Kuczynski
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Patent number: 7183041Abstract: The invention concerns a printing plate in the form of a roller and a method for obtaining same. Said method consists in producing on a first layer, at least a photopolymer film and in coiling said layers on themselves to form a roller. The invention is applicable in flexographic or typographic printing.Type: GrantFiled: December 27, 2000Date of Patent: February 27, 2007Assignee: Macdermid Graphic Arts S.A.Inventor: Michel Schanen
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Patent number: 6959644Abstract: A method for securing a mounting bar at one end of a blanket including a lithographic layer and a support layer and, interposed between those two layers, at least one reinforcing woven layer. The end of the blanket, where the bar is to be fixed, is stripped until the main or single reinforcement of the blanket is exposed and the bar is fixed at least on the stripped part on the end of the blanket. The invention is applicable to printing machines.Type: GrantFiled: April 11, 2002Date of Patent: November 1, 2005Assignee: Macdermid Graphic Arts S.A.Inventors: Denis Hertzog, Patrick Mauget
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Publication number: 20050034618Abstract: A printing sleeve with multiple layers including a printing layer, a compressible layer, and a circumferential stiffening layer. The stiffening layer is located between the compressible layer and the printing layer.Type: ApplicationFiled: October 17, 2003Publication date: February 17, 2005Applicant: Macdermid Graphic Arts S.A.S.Inventors: Philippe Barre, Helene Biava, Jean-Philippe Jenny, Yves Lemble, Gerard Rich
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Patent number: 6806018Abstract: A laser imageable flexographic printing plate and a method of making the laser imageable flexographic printing plate using a collapsible UV cross-linkable material comprising a UV-curable elastomer, an IR dye, and microspheres is disclosed. The collapsible UV cross-linkable material is mixed together and then extruded to form a printing plate. An IR laser is used to collapse and melt the collapsible UV cross-linkable material to form a relief image on the printing plate. The printing plate is thereafter UV cured by face exposure to crosslink and cure the formed relief image. The invention addresses a market need for eliminating chemical processing of printing plates, thus going from plate to press much more quickly. The printing plate may also contain a thin layer of a high-density non-collapsible UV-curable elastomer between the collapsible layer and the cover sheet of the plate which acts as the print surface in the final plate.Type: GrantFiled: March 25, 2002Date of Patent: October 19, 2004Assignee: MacDermid Graphic Arts, Inc.Inventors: Rustom Sam Kanga, Daniel Rosen
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Patent number: 6651559Abstract: The invention concerns a printing blanket for a cylinder of a printing machine, specifically of offset type, including a ground or polished or even molded lithographic layer, at least one reinforcing layer and at least one compressible layer. According to the invention, at least one surface property of the invention, namely the overall surface energy of the blanket, the surface energy with a polar character of the blanket or the average roughness of the blanket varies on the outer surface of the blanket crosswise. The invention is applicable for any indirect printing process, especially offset printing as function.Type: GrantFiled: February 4, 2000Date of Patent: November 25, 2003Assignee: MacDermid Graphic Arts SAInventors: Sophie Haraux, Chouaib Boukaftane, Jerzy Kuczynski, Khalid Zahouily, Christian Decker
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Patent number: 6536342Abstract: Novel printing surfaces for off-set printing blankets are provided having a resilience of less than about 40% and an average surface roughness of less than about 0.5 microns. Such low-resilience printing surfaces have been found to transfer up to greater than 90% of the ink applied thereto and can be used to transfer ink on a wide variety of substrates.Type: GrantFiled: June 28, 2001Date of Patent: March 25, 2003Assignee: MacDermid Graphic Arts, Inc.Inventor: Richard Rodgers
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Patent number: 6472121Abstract: High-quality composite printing elements are prepared without the need for precise registration of constituent photocurable elements by disposing at least one photocurable element, and preferably a plurality of photocurable elements, upon a surface of a printing element in approximate register and then transferring a computer-generated negative onto a surface of the elements.Type: GrantFiled: August 6, 2001Date of Patent: October 29, 2002Assignee: MacDermid Graphic Arts, Inc.Inventors: Edward Murphy, David Recchia, Daniel Rosen
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Patent number: 6423472Abstract: Butadiene-polyether prepolymers which can be used in photopolymer resins are prepared by reacting butadiene homopolymer with a stoichiometric excess of isocyanate and then reacting the product with polyether diol. Thereafter the composition is reacted with hydroxyalkyl(meth)acrylate and alkyldialkanolamine. Flexographic printing plates may be prepared using photopolymer resin comprising butadiene-polyether prepolymers.Type: GrantFiled: March 24, 2000Date of Patent: July 23, 2002Assignee: MacDermid Graphic Arts, Inc.Inventors: Ronald James Kumpfmiller, Martin Lewis Carter
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Patent number: 6413699Abstract: The present invention provides a method for producing direct-imaged flexographic printing elements such that both the front and back exposure times are economically efficient for the manufacturer. In one embodiment, the method comprises providing at least one solid photocurable element. The solid photocurable element comprises a solid photocurable material comprising an oxygen scavenger, a support layer having an actinic radiation absorbing compound integrated uniformly throughout such that it absorbs at least some actinic radiation during exposure, and a photoablative mask layer. The methods of the invention involve creating a floor in the solid photocurable material by back exposure through the support layer having the actinic radiation absorbing compound, transferring a negative image directly onto the solid photocurable material by photoablating the photoablatable mask layer, followed by front exposure effective to cure the solid photocurable material.Type: GrantFiled: October 11, 1999Date of Patent: July 2, 2002Assignee: MacDermid Graphic Arts, Inc.Inventor: Rustom Sam Kanga
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Patent number: 6399281Abstract: High-quality composite printing elements are prepared without the need for precise registration of constituent photocurable elements by disposing at least one photocurable element, and preferably a plurality of photocurable elements, upon a surface of a substantially planar carrier sheet in approximate register and then transferring a computer-generated negative onto a surface of the elements.Type: GrantFiled: November 2, 2000Date of Patent: June 4, 2002Assignee: MacDermid Graphic Arts, Inc.Inventors: George Cusdin, Joseph Crowell, Edward Murphy, David Recchia
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Patent number: 6312872Abstract: High-quality composite printing elements are prepared without the need for precise registration of constituent photocurable elements by disposing at least one photocurable element, and preferably a plurality of photocurable elements, upon a surface of a printing element in approximate register and then transferring a computer-generated negative onto a surface of the elements.Type: GrantFiled: October 12, 1999Date of Patent: November 6, 2001Assignee: MacDermid Graphic ArtsInventors: Edward Murphy, David Recchia, Daniel Rosen