EP0693371A1 - Forme d'impression effaçables et procédé pour l'effaçement et la régénération des formes - Google Patents

Forme d'impression effaçables et procédé pour l'effaçement et la régénération des formes Download PDF

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Publication number
EP0693371A1
EP0693371A1 EP95111169A EP95111169A EP0693371A1 EP 0693371 A1 EP0693371 A1 EP 0693371A1 EP 95111169 A EP95111169 A EP 95111169A EP 95111169 A EP95111169 A EP 95111169A EP 0693371 A1 EP0693371 A1 EP 0693371A1
Authority
EP
European Patent Office
Prior art keywords
printing form
printing
cleaning
cylinder
cleaning cloth
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.)
Granted
Application number
EP95111169A
Other languages
German (de)
English (en)
Other versions
EP0693371B1 (fr
Inventor
Barbara Dr. Nüssel
Hartmut Fuhrmann
Horst Dauer
Josef Göttling
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
Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0693371A1 publication Critical patent/EP0693371A1/fr
Application granted granted Critical
Publication of EP0693371B1 publication Critical patent/EP0693371B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B41C1/10—Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme
    • B41C1/1058—Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme by providing a magnetic pattern, a ferroelectric pattern or a semiconductive pattern, e.g. by electrophotography
    • 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
    • B41C1/1066—Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme by spraying with powders, by using a nozzle, e.g. an ink jet system, by fusing a previously coated powder, e.g. with a laser
    • 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
    • B41N1/00—Printing plates or foils; Materials therefor
    • B41N1/006—Printing plates or foils; Materials therefor made entirely of inorganic materials other than natural stone or metals, e.g. ceramics, carbide materials, ferroelectric materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2227/00—Mounting or handling printing plates; Forming printing surfaces in situ
    • B41P2227/70—Forming the printing surface directly on the form cylinder

Definitions

  • the invention relates to an erasable printing form according to the preamble of claim 1, a method and an apparatus for deleting and regenerating the printing form.
  • a printing form suitable for the wet offset process is already known from DE 42 35 242 8.
  • This printing form has strong microdipoles, at least in its outer layer, and its surface is hydrophobic. After covering material corresponding to an image to be printed has been applied, the non-image areas are hydrophilized by a hydrophilizing agent.
  • These printing forms have the advantage that they can be easily regenerated, i. that is, they can be easily deleted and re-imaged after a printing process is completed. However, these printing forms have the disadvantage that their production is complex.
  • the invention is explained in more detail below in exemplary embodiments and with reference to the single figure.
  • the figure shows a printing unit with a device according to the invention for deleting and regenerating the printing form according to the invention in cross section.
  • a printing form In order for a printing form to be easily erased, it must be smooth and non-porous. It must therefore not contain any cavities, at least not on its surface, and must not be rough, so that no mechanical anchors form between the surface and the imaging material, printing ink or dirt that can no longer be removed.
  • the surface roughness R a must be ⁇ 1 ⁇ m.
  • the printing forms In order for the printing forms to be suitable for the wet offset process, their surface must be either hydrophilic or easily hydrophilizable.
  • the printing form is hydrophilized by using a hydrophilizing agent, e.g. B. a plate cleaner, for example sprayed onto them from nozzles.
  • the hydrophilicity of the surface must also be recoverable after thermal stress, ie after a thermal fixing step for material applied in the image. So it can at most become reversibly weaker or disappear reversibly.
  • Ceramics are suitable as materials for producing such printing forms. They are produced by the sol-gel process, a PVD or a CVD process, in a thermal spray process, for. B. the plasma spraying process, or by a sintering process. The ceramic must then be ground to a mirror finish, ie it may only have a roughness of R a ⁇ 0.3 ⁇ m. If the printing forms produced in one of the processes mentioned are not yet pore-free, they are then sealed.
  • Ceramic printing forms contain, for example, aluminum oxide, aluminum silicate (mullite), zirconium silicate or zirconium oxide. It is particularly favorable if the hydrophilicity of a ceramic printing form is not only achieved by hydrophilizing the surface, but is also a volume property of the ceramic layer.
  • printing plates with a smooth surface can also be produced from glass, preferably from a chemical and temperature-resistant glass based on borosilicate.
  • metals of which alloys with a good structural stability and a high resistance to oxidation are particularly suitable even under cyclical temperature stress.
  • the metals When used as printing forms, the metals have a smooth surface with a roughness R a ⁇ 0.2 ⁇ m.
  • Nickel-chrome steels are particularly suitable.
  • Nickel-chromium-iron alloys and nickel-chromium-molybdenum alloys are preferably used, in particular those from Heynes International Incorporated, Kokomo, USA, under the material numbers. Alloys 2.4665 and 2.4819, 2.4602, 2.4636 and 2.4638 available.
  • Other very suitable nickel-chromium-molybdenum and nickel-chromium-iron alloys are those under the material numbers.
  • such a directly illustrated printing form which consists of one of the above-mentioned materials, a ceramic, a glass or a metal or at least has a superficial layer of one of these materials, can be deleted in the printing machine in the following manner: First the ink residues and the imagewise applied coating are removed by a cleaning agent, for example wiped off.
  • the cleaning agent is a solvent or solvent mixture; it contains no solid components.
  • the surface of the printing form is then rubbed mechanically.
  • a polishing agent-containing cleaning agent for example a plate cleaner such as is generally used for cleaning printing forms, is used for this purpose.
  • the plate cleaner is then removed, for example with water, and the printing form is made hydrophobic again by wetting with the solvent in order to prepare it for a new direct imaging step.
  • the printing form as is also known for example from DE 42 35 242 C 1, is hydrophilized again, unless the printing form already has a hydrophilic surface as the material and it is therefore sufficient if the non-image areas only be hydrophilized again by the dampening solution during the printing process.
  • the device shown in the figure is used both for erasing and for hydrophilizing and for fixing the directly illustrated printing form described above as well as other printing forms, such as are known for example from DE 41 23 959 C 1 or DE 36 33 758 A 1.
  • the fixing step consists in that the imaged printing form is heated by a dryer 7 to a surface temperature between 170 ° C and 210 ° C.
  • the printing form is heated either inductively or by an infrared heater.
  • Other fixation methods use UV rays or electron beams. It is also possible to harden the printing forms using suitable chemicals, for example only using moisture.
  • the extinguishing and hydrophilizing device is permanently installed in a printing unit of an offset printing press and is arranged on the circumference of a forme cylinder 1 with a directly imageable printing form 2.
  • a blanket cylinder 3 for transferring the print image to a printing substrate such as the printing substrate web 17 shown here and rollers 4, 5 of an inking or dampening unit are in contact with the forme cylinder 1.
  • An imaging unit (not shown here) is also arranged on the circumference of the forme cylinder 1 for direct imaging.
  • the extinguishing and hydrophilizing device has a cleaning device 6 and the dryer 7, which can be placed on the printing form 2 and can be removed from it again.
  • the cleaning device 6 works by means of a cleaning cloth or cleaning fleece 8, which is pressed by a feed roller 9 via a pressure roller 10 against the printing form 2 and is then wound onto a winding roller 11.
  • the pressure roller 10 is in turn rotatably mounted in an oscillating head 12. This is pressed against the printing form 2 by means of a pressure cylinder 13. If from nozzles 14, which are in the direction of rotation of the forme cylinder 1 in front of the cleaning device 6, a cleaning liquid or a cleaning paste, a hydrophilizing agent, for. B. a plate cleaner or other means that is used either to erase the printing image applied to the printing form 2 and to remove printing ink residues or to hydrophilize the surface of the printing form 2, is applied to the printing form, this means together with the detached from it Dirt can be absorbed by the cleaning cloth 8 when the pressure cylinder 13 presses the pressure roller 10 against the printing form 2 and the cleaning cloth 8 is moved past the printing form 2.
  • the nozzles 14 are preferably adjustable in angle and spray the agent either directly onto the printing form 2 or onto the cleaning cloth.
  • the pressure roller 10 is, for example, rubber-coated.
  • the cleaning cloth 8 is wound up either in portions or continuously from the feed roller 9 onto the winding roller 11.
  • the pressure with which the cleaning cloth 8 is pressed against the printing form 2 is preferably also variably adjustable.
  • the printing form 2 cleaned by the cleaning device 6 can then be dried with hot air by the dryer 7 via a feed device 15.
  • the hot air then flows back, if it contains solvent components, for example, through a discharge device 16.
  • the extinguishing and hydrophilizing device can, for example, be placed alternately on the forme cylinder 1 or on the blanket cylinder, if the blanket is also to be cleaned by the extinguishing and hydrophilizing device.
  • the extinguishing and hydrophilizing device is located outside the printing press, in order to clean either printing form 2 or blankets there.
  • Solvents for removing the ink residues and the imagewise applied polymer layer or other cleaning agents which contain abrasive bodies such as e.g. B. some of the plate cleaners common in the graphics industry, or water to remove abrasive residue.
  • the cleaning agents can be used in any order one after the other or in a changing order. It is also possible to rub the surface of the printing form to be deleted with a dry cleaning cloth after or between the individual cleaning steps. In order to increase the effectiveness of cleaning agents containing grinding media, the cleaning cloth 8 preferably executes an oscillating movement.
  • the invention provides a printing form 2, which can be directly and directly imaged and erased, for a wet offset printing process. It has a smooth and non-porous surface that is hydrophilic or can be hydrophilized after imaging.
  • the printing form 2 contains no strong microdipoles and consists of a ceramic, a glass or a metal, in particular a metal alloy.
  • an erasing and hydrophilizing device 6, 7, which is preferably integrated in the printing press the printing form 2 can be repeatedly erased and prepared for a new imaging and printing process, i. H. re-hydrophilize.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Rotary Presses (AREA)
EP95111169A 1994-07-22 1995-07-15 Forme d'impression effaçables et procédé pour l'effaçement et la régénération des formes Expired - Lifetime EP0693371B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4426012 1994-07-22
DE4426012A DE4426012C2 (de) 1994-07-22 1994-07-22 Löschbare Druckform, ihre Verwendung sowie Verfahren zum Löschen und Regenerieren der Druckform

Publications (2)

Publication Number Publication Date
EP0693371A1 true EP0693371A1 (fr) 1996-01-24
EP0693371B1 EP0693371B1 (fr) 1998-09-02

Family

ID=6523895

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95111169A Expired - Lifetime EP0693371B1 (fr) 1994-07-22 1995-07-15 Forme d'impression effaçables et procédé pour l'effaçement et la régénération des formes

Country Status (4)

Country Link
EP (1) EP0693371B1 (fr)
JP (1) JP2792835B2 (fr)
CA (1) CA2154012C (fr)
DE (2) DE4426012C2 (fr)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0872339A1 (fr) * 1997-04-18 1998-10-21 Eastman Kodak Company Cylindres et manchons à base d'un alliage de zircone pour l'enregistrement et l'impression lithographique
US5836249A (en) * 1995-10-20 1998-11-17 Eastman Kodak Company Laser ablation imaging of zirconia-alumina composite ceramic printing member
US5836248A (en) * 1997-05-01 1998-11-17 Eastman Kodak Company Zirconia-alumina composite ceramic lithographic printing member
US5839369A (en) * 1995-10-20 1998-11-24 Eastman Kodak Company Method of controlled laser imaging of zirconia alloy ceramic lithographic member to provide localized melting in exposed areas
US5839370A (en) * 1995-10-20 1998-11-24 Eastman Kodak Company Flexible zirconia alloy ceramic lithographic printing tape and method of using same
US5855173A (en) * 1995-10-20 1999-01-05 Eastman Kodak Company Zirconia alloy cylinders and sleeves for imaging and lithographic printing methods
US5893328A (en) * 1997-05-01 1999-04-13 Eastman Kodak Company Method of controlled laser imaging of zirconia-alumina composite ceramic lithographic printing member to provide localized melting in exposed areas
US5925496A (en) * 1998-01-07 1999-07-20 Eastman Kodak Company Anodized zirconium metal lithographic printing member and methods of use
US5927207A (en) * 1998-04-07 1999-07-27 Eastman Kodak Company Zirconia ceramic imaging member with hydrophilic surface layer and methods of use
EP0933388A2 (fr) * 1998-01-30 1999-08-04 CREAVIS Gesellschaft für Technologie und Innovation mbH Surfaces structurelles avec propriétés hydrophobes
EP0965444A1 (fr) * 1998-06-17 1999-12-22 Scitex Corporation Ltd. Système et méthode pour l'impression lithographique utilisant des supports à surface réutilisable
US6452622B2 (en) 2000-02-23 2002-09-17 Man Roland Druckmaschinen Ag Device for thermal energy injection
US6525008B2 (en) 1999-12-24 2003-02-25 Man Roland Druckmaschinen Ag Cleaning composition for printing presses
WO2003070481A1 (fr) * 2002-02-19 2003-08-28 OCé PRINTING SYSTEMS GMBH Procede et equipement d'impression selon lequel on applique une substance favorisant le mouillage avant d'appliquer la couche repoussant l'encre ou absorbant l'encre
EP1380417A1 (fr) * 2002-07-03 2004-01-14 Agfa-Gevaert Précurseur de plaque d'impression lithographique de type positif
US6694879B2 (en) 2000-02-23 2004-02-24 Man Roland Druckmaschinen Ag Erasing and cleaning device for cylinders, in particular printing-form and rubber-blanket cylinders of a printing machine
EP1629991A2 (fr) * 2004-08-28 2006-03-01 MAN Roland Druckmaschinen AG Procedure et dispositif d'effacement d'images sur une plaque d'impression

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19600846C1 (de) * 1996-01-12 1997-04-03 Heidelberger Druckmasch Ag Vorrichtung zur Reinigung direkt bebilderter Druckformen in einer Druckmaschine
DE19600844A1 (de) * 1996-01-12 1997-07-17 Heidelberger Druckmasch Ag Vorrichtung zur Reinigung direkt bebilderter Druckformen in einer Druckmaschine
DE19602328A1 (de) 1996-01-24 1997-07-31 Roland Man Druckmasch Verfahren zum Bebildern einer löschbaren Druckform
DE19826377A1 (de) * 1998-06-12 1999-12-16 Heidelberger Druckmasch Ag Druckmaschine und Druckverfahren
DE19939240C2 (de) * 1999-08-18 2002-09-26 Roland Man Druckmasch Verfahren und Vorrichtung zum reversiblen Bebildern einer Druckform
DE10054284B4 (de) 2000-11-02 2010-04-08 Manroland Ag Verfahren zur Behandlung einer löschbaren lithographischen Druckform
US6969541B2 (en) 2001-07-25 2005-11-29 Heidelberger Druckmaschinen Ag Method and device for structuring a surface to form hydrophilic and hydrophobic regions
DE10136068A1 (de) 2001-07-25 2003-02-13 Heidelberger Druckmasch Ag Verfahren und Vorrichtung zur Strukturierung einer Oberfläche in hydrophile und hydrophobe Bereiche
DE10154430B4 (de) 2001-11-06 2009-04-02 Manroland Ag Verfahren und Vorrichtung zum Löschen eines Druckbildes auf einer Druckform für eine Druckmaschine
DE102006049149A1 (de) * 2006-10-18 2008-04-24 Man Roland Druckmaschinen Ag Verfahren zum Löschen einer Druckform
DE102007057798B4 (de) 2006-12-20 2018-12-06 Heidelberger Druckmaschinen Ag Verfahren zum Behandeln einer drucktechnischen Oberfläche
DE102008031140A1 (de) 2007-07-19 2009-01-22 Heidelberger Druckmaschinen Ag Vorrichtung und Verfahren zum Behandeln einer rotierenden drucktechnischen Oberfläche mit einer Prozessflüssigkeit
CN101628514B (zh) * 2008-07-16 2012-05-30 海德堡印刷机械股份公司 通过至少一种液体处理可重复使用的印刷技术表面的方法
DE102008045400A1 (de) * 2008-09-02 2010-03-04 Fischer & Krecke Gmbh Verfahren zur Wiederaufbereitung der Oberfläche eines Zylinders in einer Rotationsdruckmaschine
DE102011106799A1 (de) 2010-08-04 2012-02-09 Heidelberger Druckmaschinen Aktiengesellschaft Verfahren zum Wiederbebildern einer abgedruckten Druckform
US9492996B2 (en) * 2012-12-31 2016-11-15 Goss International Americas, Inc. Web control to reduce waste and method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984002494A1 (fr) * 1982-12-27 1984-07-05 Josef Schneider Procede et installation pour la fabrication d'un element de stockage d'image a imprimer pour l'impression a plat
EP0262475A2 (fr) * 1986-10-03 1988-04-06 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Machine pour l'impression
EP0523584A1 (fr) * 1991-07-19 1993-01-20 MAN Roland Druckmaschinen AG Procédé pour la régénération de formes d'impression offset avec image directe
DE4235242C1 (de) 1992-10-20 1993-11-11 Roland Man Druckmasch Löschbare Druckform

Family Cites Families (4)

* Cited by examiner, † Cited by third party
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JPS56150592A (en) * 1980-04-24 1981-11-21 Toyo Ink Mfg Co Ltd Machine plate for use in lithographic printing
JPS5764597A (en) * 1980-10-09 1982-04-19 Toyo Kohan Co Ltd Manufacture of metal sheet for plate material
JPH02229092A (ja) * 1989-03-01 1990-09-11 Konica Corp 感光性平版印刷版
DE4216636C2 (de) * 1992-05-20 1995-11-23 Roland Man Druckmasch Verfahren und Vorrichtung zum Löschen und Hydrophilieren einer mittels eines Thermotransverfahrens bebilderten Druckform

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984002494A1 (fr) * 1982-12-27 1984-07-05 Josef Schneider Procede et installation pour la fabrication d'un element de stockage d'image a imprimer pour l'impression a plat
EP0262475A2 (fr) * 1986-10-03 1988-04-06 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Machine pour l'impression
DE3633758A1 (de) 1986-10-03 1988-04-07 Man Technologie Gmbh Druckmaschine
EP0523584A1 (fr) * 1991-07-19 1993-01-20 MAN Roland Druckmaschinen AG Procédé pour la régénération de formes d'impression offset avec image directe
DE4123959C1 (fr) 1991-07-19 1993-02-04 Man Roland Druckmaschinen Ag, 6050 Offenbach, De
DE4235242C1 (de) 1992-10-20 1993-11-11 Roland Man Druckmasch Löschbare Druckform
EP0594097A1 (fr) * 1992-10-20 1994-04-27 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Formes d'impression effaçables

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5836249A (en) * 1995-10-20 1998-11-17 Eastman Kodak Company Laser ablation imaging of zirconia-alumina composite ceramic printing member
US5839369A (en) * 1995-10-20 1998-11-24 Eastman Kodak Company Method of controlled laser imaging of zirconia alloy ceramic lithographic member to provide localized melting in exposed areas
US5839370A (en) * 1995-10-20 1998-11-24 Eastman Kodak Company Flexible zirconia alloy ceramic lithographic printing tape and method of using same
US5855173A (en) * 1995-10-20 1999-01-05 Eastman Kodak Company Zirconia alloy cylinders and sleeves for imaging and lithographic printing methods
EP0872339A1 (fr) * 1997-04-18 1998-10-21 Eastman Kodak Company Cylindres et manchons à base d'un alliage de zircone pour l'enregistrement et l'impression lithographique
US5836248A (en) * 1997-05-01 1998-11-17 Eastman Kodak Company Zirconia-alumina composite ceramic lithographic printing member
US5893328A (en) * 1997-05-01 1999-04-13 Eastman Kodak Company Method of controlled laser imaging of zirconia-alumina composite ceramic lithographic printing member to provide localized melting in exposed areas
US5925496A (en) * 1998-01-07 1999-07-20 Eastman Kodak Company Anodized zirconium metal lithographic printing member and methods of use
EP0933388A3 (fr) * 1998-01-30 1999-08-18 CREAVIS Gesellschaft für Technologie und Innovation mbH Surfaces structurelles avec propriétés hydrophobes
EP0933388A2 (fr) * 1998-01-30 1999-08-04 CREAVIS Gesellschaft für Technologie und Innovation mbH Surfaces structurelles avec propriétés hydrophobes
US5927207A (en) * 1998-04-07 1999-07-27 Eastman Kodak Company Zirconia ceramic imaging member with hydrophilic surface layer and methods of use
EP0965444A1 (fr) * 1998-06-17 1999-12-22 Scitex Corporation Ltd. Système et méthode pour l'impression lithographique utilisant des supports à surface réutilisable
US6525008B2 (en) 1999-12-24 2003-02-25 Man Roland Druckmaschinen Ag Cleaning composition for printing presses
US6452622B2 (en) 2000-02-23 2002-09-17 Man Roland Druckmaschinen Ag Device for thermal energy injection
US6694879B2 (en) 2000-02-23 2004-02-24 Man Roland Druckmaschinen Ag Erasing and cleaning device for cylinders, in particular printing-form and rubber-blanket cylinders of a printing machine
WO2003070481A1 (fr) * 2002-02-19 2003-08-28 OCé PRINTING SYSTEMS GMBH Procede et equipement d'impression selon lequel on applique une substance favorisant le mouillage avant d'appliquer la couche repoussant l'encre ou absorbant l'encre
US7191705B2 (en) 2002-02-19 2007-03-20 Oce Printing Systems Gmbh Printing device and method, in which a humidity promoter is applied prior to the ink-repellent or ink-receptive layer
EP1380417A1 (fr) * 2002-07-03 2004-01-14 Agfa-Gevaert Précurseur de plaque d'impression lithographique de type positif
EP1629991A2 (fr) * 2004-08-28 2006-03-01 MAN Roland Druckmaschinen AG Procedure et dispositif d'effacement d'images sur une plaque d'impression
EP1629991A3 (fr) * 2004-08-28 2009-03-11 manroland AG Procedure et dispositif d'effacement d'images sur une plaque d'impression

Also Published As

Publication number Publication date
CA2154012C (fr) 1999-11-30
DE4426012C2 (de) 1998-05-20
JPH0852949A (ja) 1996-02-27
EP0693371B1 (fr) 1998-09-02
DE4426012A1 (de) 1996-01-25
CA2154012A1 (fr) 1996-01-23
DE59503418D1 (de) 1998-10-08
JP2792835B2 (ja) 1998-09-03

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