EP0622248B1 - Cylindre porteur de plaque pour machine d'imprimerie - Google Patents

Cylindre porteur de plaque pour machine d'imprimerie Download PDF

Info

Publication number
EP0622248B1
EP0622248B1 EP94104753A EP94104753A EP0622248B1 EP 0622248 B1 EP0622248 B1 EP 0622248B1 EP 94104753 A EP94104753 A EP 94104753A EP 94104753 A EP94104753 A EP 94104753A EP 0622248 B1 EP0622248 B1 EP 0622248B1
Authority
EP
European Patent Office
Prior art keywords
plate cylinder
plate
printing
printing plate
cylinder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Revoked
Application number
EP94104753A
Other languages
German (de)
English (en)
Other versions
EP0622248A1 (fr
Inventor
Claus Simeth
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Manroland AG
Original Assignee
MAN Roland Druckmaschinen AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25925467&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0622248(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0622248A1 publication Critical patent/EP0622248A1/fr
Application granted granted Critical
Publication of EP0622248B1 publication Critical patent/EP0622248B1/fr
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C1/00—Forme preparation
    • B41C1/18—Curved printing formes or printing cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N6/00—Mounting boards; Sleeves Make-ready devices, e.g. underlays, overlays; Attaching by chemical means, e.g. vulcanising

Definitions

  • the invention relates to a plate cylinder for a printing press with a printing plate that can be clamped onto its outer surface and a friction-reducing layer provided between the printing plate and the plate cylinder.
  • a plate cylinder of the type specified is known from DE 39 36 448 C1.
  • a film arrangement with two superimposed films is provided between the printing cylinder and the printing plate, one surface of each of the two films having a smaller coefficient of sliding friction than the other surface.
  • the areas of low sliding friction are generated by a plastic coating on the foils.
  • the foils lie on top of each other with their well sliding surfaces with a lower coefficient of sliding friction and thereby enable the printing plate to be moved relative to the plate cylinder with low sliding friction. This makes it easier to clamp and adjust the printing plate on the plate cylinder.
  • this known design of the plate cylinder it is disadvantageous that the application of the foils makes handling when changing the printing plate difficult. Furthermore, the heat dissipation from the pressure plate to the plate cylinder worsened by the two foils and accordingly reduced the temperature resistance.
  • a pre-coated printing plate is known from EP 0 528 395 A1, which has a coating on its rear side.
  • a lubricant can also be added to the coating.
  • the invention is based on the object of improving the handling and temperature resistance in a plate cylinder of the type mentioned.
  • the object is achieved in that the surface of the plate cylinder and the underside of the printing plate are coated with a sliding material.
  • the layer thickness of the sliding material is preferably approximately 10 ⁇ m.
  • Thermosets, thermoplastics and inorganic dry lubricants come into consideration as sliding materials.
  • the sliding materials can be burned into the surface of the plate cylinder or the printing plate at a temperature of approximately 200 ° C. It is also possible to connect the sliding material to the plate cylinder or the printing plate by means of a carrier layer as an adhesion promoter.
  • the printing plate lies directly on the plate cylinder.
  • the layers of sliding material have a layer thickness that is many times smaller than that of the known foils, and thereby enable considerably better heat dissipation via the plate cylinder.
  • the direct support of the printing plate on the plate cylinder also contributes to less deformation of the printing plate and thus to a higher dimensional accuracy.
  • friction coefficients between 0.04 for molybdenum disulfide or PTFE and 0.3 for boron nitride can be achieved, whereby a layer thickness of 10 ⁇ m or even less is usually sufficient.
  • the carrier surface is pretreated by blasting or anodic / chemical conversion.
  • the reduction in friction between the printing plate and the plate cylinder achieved with the coating according to the invention makes it easier to move the printing plate relative to the plate cylinder, so that the tensioning and adjustment of the printing plate on the printing cylinder can be carried out more easily and precisely.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Rotary Presses (AREA)

Claims (4)

  1. Cylindre porte-plaque pour une machine d'impression, comportant une plaque d'impression pouvant être montée sur sa face d'enveloppe munie d'une couche agencée sur la face arrière,
    caractérisé en ce que la surface du cylindre porte-plaque et la face inférieure de la plaque d'impression sont recouvertes d'un matériau antifriction.
  2. Cylindre porte-plaque selon la revendication 1,
    caractérisé en ce que l'épaisseur de la couche de matériau antifriction vaut 10 µm.
  3. Cylindre porte-plaque selon l'une des revendications 1 ou 2,
    caractérisé en ce que le matériau antifriction peut être cuit dans la surface du cylindre porte-plaque et dans la face inférieure de la plaque d'impression.
  4. Cylindre porte-plaque selon l'une des revendications 1 à 3,
    caractérisé en ce que le matériau antifriction est relié au moyen d'une couche porteuse au cylindre porte-plaque et à la plaque d'impression.
EP94104753A 1993-04-30 1994-03-25 Cylindre porteur de plaque pour machine d'imprimerie Revoked EP0622248B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4314398 1993-04-30
DE4314398 1993-04-30
DE9307099U 1993-05-07
DE9307099 1993-05-07

Publications (2)

Publication Number Publication Date
EP0622248A1 EP0622248A1 (fr) 1994-11-02
EP0622248B1 true EP0622248B1 (fr) 1996-12-27

Family

ID=25925467

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94104753A Revoked EP0622248B1 (fr) 1993-04-30 1994-03-25 Cylindre porteur de plaque pour machine d'imprimerie

Country Status (5)

Country Link
US (1) US6209455B1 (fr)
EP (1) EP0622248B1 (fr)
JP (1) JP2766183B2 (fr)
AT (1) ATE146725T1 (fr)
DE (1) DE59401376D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19526703A1 (de) * 1995-07-24 1997-02-20 Pms Graphischer Service Gmbh Verfahren zur Herstellung von Unterlagen für Druckplatten auf Plattenzylindern

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004033224A1 (fr) * 2002-10-11 2004-04-22 Day International, Inc. Blanchet d'imprimerie et procede permettant de reduire la corrosion et l'abrasion de blanchets d'imprimerie et de cylindres porte-blanchets
JP2005035003A (ja) * 2003-07-15 2005-02-10 Konica Minolta Medical & Graphic Inc 版下シート材料、版掛け方法及び印刷方法
US7422840B2 (en) * 2004-11-12 2008-09-09 E.I. Du Pont De Nemours And Company Apparatus and process for forming a printing form having a cylindrical support
DE102006038798A1 (de) * 2006-07-31 2008-02-07 Heidelberger Druckmaschinen Ag Folientransferwerk mit Materialaufbringeinrichtung
ITMI20082225A1 (it) * 2008-12-16 2010-06-17 Rossini S P A Manica adattatrice per cilindri da stampa ad elevata rigidita'

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3791644A (en) * 1972-12-14 1974-02-12 H Demoore Sheet handling apparatus
JPS5638291A (en) * 1979-09-06 1981-04-13 Yoshida Kogyo Kk <Ykk> Method of forming rigid print film on substrate
JPS5642679A (en) * 1979-09-14 1981-04-20 Kunio Mori Plate cylinder device in rotary printer
US4402267A (en) * 1981-03-11 1983-09-06 Printing Research Corporation Method and apparatus for handling printed sheet material
JPS6389185A (ja) * 1986-09-30 1988-04-20 長谷川刃物株式会社 鋏に非粘着性被膜を形成する方法
DE3714327A1 (de) * 1987-04-29 1988-11-17 Boettcher Gmbh & Co Felix Metallkoerper zur farbuebertragung und -dosierung in druckwerken
DE3936448C1 (fr) 1989-11-02 1991-04-18 Miller-Johannisberg Druckmaschinen Gmbh, 6222 Geisenheim, De
JPH0739162B2 (ja) * 1991-06-13 1995-05-01 株式会社淀川製鋼所 塩化ビニル化粧金属板とその製造方法
EP0528395B1 (fr) * 1991-08-19 1997-06-18 Fuji Photo Film Co., Ltd. Plaque présensibilisée pour la fabrication d'une plaque d'impression lithographique

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19526703A1 (de) * 1995-07-24 1997-02-20 Pms Graphischer Service Gmbh Verfahren zur Herstellung von Unterlagen für Druckplatten auf Plattenzylindern
DE19526703C2 (de) * 1995-07-24 1999-08-19 Saechsisches Inst Fuer Die Dru Verfahren zur Herstellung von Unterlagen für Druckplatten auf Plattenzylindern

Also Published As

Publication number Publication date
JPH0747782A (ja) 1995-02-21
US6209455B1 (en) 2001-04-03
DE59401376D1 (de) 1997-02-06
JP2766183B2 (ja) 1998-06-18
ATE146725T1 (de) 1997-01-15
EP0622248A1 (fr) 1994-11-02

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