EP1179423A2 - Procédé et appareil pour la fabrication d'une plaque d'impression dans une machine d'impression - Google Patents

Procédé et appareil pour la fabrication d'une plaque d'impression dans une machine d'impression Download PDF

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Publication number
EP1179423A2
EP1179423A2 EP01115573A EP01115573A EP1179423A2 EP 1179423 A2 EP1179423 A2 EP 1179423A2 EP 01115573 A EP01115573 A EP 01115573A EP 01115573 A EP01115573 A EP 01115573A EP 1179423 A2 EP1179423 A2 EP 1179423A2
Authority
EP
European Patent Office
Prior art keywords
printing
printing form
cylinder
image
oxidized
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.)
Ceased
Application number
EP01115573A
Other languages
German (de)
English (en)
Other versions
EP1179423A3 (fr
Inventor
Arndt Jentzsch
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.)
Koenig and Bauer AG
Original Assignee
Koenig and Bauer 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
Application filed by Koenig and Bauer AG filed Critical Koenig and Bauer AG
Publication of EP1179423A2 publication Critical patent/EP1179423A2/fr
Publication of EP1179423A3 publication Critical patent/EP1179423A3/fr
Ceased legal-status Critical Current

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Classifications

    • 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
    • B41N3/00—Preparing for use and conserving printing surfaces
    • B41N3/006—Cleaning, washing, rinsing or reclaiming of printing formes other than intaglio formes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C1/00—Forme preparation
    • B41C1/10—Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme

Definitions

  • the invention relates to a method for generating a print image information Printing machine printing form on a printing form cylinder in a printing press.
  • the xerox copying process is generally known. With this copying process a latent image is generated on a semiconductor drum, this image by means of a powder Transfer the toner onto the paper sheet and erase the latent image. In printing machines this method is not applicable.
  • the object of the invention is to provide a method for generating an erasable Printing form on the printing form cylinder in a printing press with little effort and long service life.
  • the printing form cylinder 1 shows a printing form cylinder of a printing press.
  • the printing form cylinder 1 is equipped with an oxidizable surface 2, the oxidizable surface 2 expediently having hydrophilic properties.
  • the oxidizable surface 2 is provided with oxidized image-bearing areas 3 from a previous print job, the oxidized image-bearing areas being hydrophobic.
  • Reduction means that an endothermic reaction takes place, in which a compound contains oxygen is withdrawn, d.
  • Metal ions receive their valence electrons and thus the metallic character back.
  • the new image-bearing points of a new print job are oxidized by means of an oxidation device 6. Oxidation means that an exothermic reaction with oxygen takes place, whereby valence electrons are released and the metal character is lost, ie the oxidized points 5 are made receptive to the printing ink to be applied later.
  • the oxidation device 6 is connected to a storage device (not shown) for the digital matrix of the image-bearing points.
  • the oxidation device 6, like the reduction device 4, is arranged traversing or extending over the entire width of the printing form cylinder 1.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Printing Plates And Materials Therefor (AREA)
EP01115573A 2000-08-09 2001-06-28 Procédé et appareil pour la fabrication d'une plaque d'impression dans une machine d'impression Ceased EP1179423A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10039818 2000-08-09
DE2000139818 DE10039818A1 (de) 2000-08-09 2000-08-09 Verfahren zur Erzeugung einer Druckmaschinen-Druckform

Publications (2)

Publication Number Publication Date
EP1179423A2 true EP1179423A2 (fr) 2002-02-13
EP1179423A3 EP1179423A3 (fr) 2003-08-20

Family

ID=7652478

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01115573A Ceased EP1179423A3 (fr) 2000-08-09 2001-06-28 Procédé et appareil pour la fabrication d'une plaque d'impression dans une machine d'impression

Country Status (2)

Country Link
EP (1) EP1179423A3 (fr)
DE (1) DE10039818A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5317970A (en) * 1991-07-19 1994-06-07 Man Roland Druckmaschinen Ag Method and system for reversibly regenerating an imaged planographic printing form, particularly for use in offset printing
US5816161A (en) * 1994-07-22 1998-10-06 Man Roland Druckmaschinen Ag Erasable printing plate having a smooth pore free metallic surface
US5870956A (en) * 1995-12-21 1999-02-16 Eastman Kodak Company Zirconia ceramic lithographic printing plate
EP0911154A1 (fr) * 1997-10-24 1999-04-28 Fuji Photo Film Co., Ltd. Appareil pour la fabrication d'une plaque d'impression et imprimante et système d'impression utilisant cet appareil
DE19945847A1 (de) * 1998-10-10 2000-06-21 Heidelberger Druckmasch Ag Druckform und Verfahren zum Ändern ihrer Benetzungseigenschaften

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5317970A (en) * 1991-07-19 1994-06-07 Man Roland Druckmaschinen Ag Method and system for reversibly regenerating an imaged planographic printing form, particularly for use in offset printing
US5816161A (en) * 1994-07-22 1998-10-06 Man Roland Druckmaschinen Ag Erasable printing plate having a smooth pore free metallic surface
US5870956A (en) * 1995-12-21 1999-02-16 Eastman Kodak Company Zirconia ceramic lithographic printing plate
EP0911154A1 (fr) * 1997-10-24 1999-04-28 Fuji Photo Film Co., Ltd. Appareil pour la fabrication d'une plaque d'impression et imprimante et système d'impression utilisant cet appareil
DE19945847A1 (de) * 1998-10-10 2000-06-21 Heidelberger Druckmasch Ag Druckform und Verfahren zum Ändern ihrer Benetzungseigenschaften

Also Published As

Publication number Publication date
DE10039818A1 (de) 2002-02-21
EP1179423A3 (fr) 2003-08-20

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