EP0264604A2 - Plaque d'impression lithographique - Google Patents

Plaque d'impression lithographique Download PDF

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Publication number
EP0264604A2
EP0264604A2 EP87113142A EP87113142A EP0264604A2 EP 0264604 A2 EP0264604 A2 EP 0264604A2 EP 87113142 A EP87113142 A EP 87113142A EP 87113142 A EP87113142 A EP 87113142A EP 0264604 A2 EP0264604 A2 EP 0264604A2
Authority
EP
European Patent Office
Prior art keywords
printing form
heat
printing
layer
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.)
Ceased
Application number
EP87113142A
Other languages
German (de)
English (en)
Other versions
EP0264604A3 (fr
Inventor
Otto Dipl.-Ing. Mayrhofer
Dipl.-Phys. Fuhrmann Hartmut
Reinhard Dipl.-Ing. Plaschka (Fh)
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
MAN Technologie 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, MAN Technologie AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0264604A2 publication Critical patent/EP0264604A2/fr
Publication of EP0264604A3 publication Critical patent/EP0264604A3/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
    • B41N1/00—Printing plates or foils; Materials therefor
    • B41N1/04—Printing plates or foils; Materials therefor metallic
    • B41N1/08—Printing plates or foils; Materials therefor metallic for lithographic printing
    • 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
    • B41C1/1091—Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme by physical transfer from a donor sheet having an uniform coating of lithographic material using thermal means as provided by a thermal head or a laser; by mechanical pressure, e.g. from a typewriter by electrical recording ribbon therefor
    • 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
    • B41C1/1075—Mechanical aspects of on-press plate preparation

Definitions

  • the invention relates to a printing form for planographic printing with a hydrophilic surface, to which surface elements that accept ink under the influence of heat and pressure can be transferred.
  • DE-32 48 178 A1 describes a printing form of this type which can be deleted and can be rewritten within the printing machine for an image change.
  • hydrophobic surface elements are transferred to the hydrophilic surface of the printing form by means of a thermal print head and a thermal transfer film under the action of heat and pressure.
  • the thermal print head generates selective heat in order to apply individual ink-accepting dots to the hydrophilic surface with the help of the thermal transfer film.
  • the invention has for its object to develop a printing form of the type mentioned in such a way that an accurate transfer of images or lettering is possible.
  • the invention is based on the knowledge that when the selective heat is transferred by means of the thermal print head, the heat flows away too quickly via the metal printing form. The temperature generated at certain points is thus sufficient not enough to remove the layer of the thermal transfer ribbon provided for the application of the hydrophobic or oleophilic surface elements on the printing form.
  • the measure according to the invention prevents the heat generated by the thermal print head from flowing away quickly, and ensures that the layer in the thermal transfer ribbon is transferred to the print medium in a precise and point-specific manner in each case.
  • the printing form cylinder or the printing form plate is made of a material with heat-insulating properties and a hydrophilic character. This is the simplest solution in terms of production technology, the surface of the forme cylinder or the forme plate being the printing form.
  • these can be produced from any material and coated with a material with heat-insulating properties and hydrophilic character.
  • one or the other embodiment mentioned above can be combined with a thin metal layer which is applied to the material.
  • This metal layer which with a conventional method, for. B. applied by vapor deposition offers a good basis for the introduction of the oleophilic areas. Due to the chosen thickness of a few ⁇ m, approximately in the range of 10 ⁇ m of the metal layer, is on on the other hand ensures that there is no lateral heat discharge.
  • aluminum can be used for the metal layer.
  • Ceramic materials, plastics and metal oxides can be used as the heat-insulating material. If the material forms the printing surface of the printing form, then the material must also have a good hydrophilic character. They should also be resistant to circulation in order to prevent premature wear of the printing form.
  • a printing form cylinder (10) is shown in cross section, which consists of a core (11) of any material, e.g. B. iron and a coated printing form, which in turn consists of a composite (12) and (13).
  • the inner layer (12) of the printing form consists of a material that is good heat insulation, such as. B. a plastic, a metal oxide or ceramic material.
  • the second layer (13) is applied very thinly on the heat-insulating layer (12) of the printing form approximately in the range of 10 ⁇ m.
  • This second layer (13) consists of a metal which has a hydrophilic character, e.g. B. aluminum, aluminum oxide, chrome.
  • This composite (12, 13) forming the printing form thus has a surface (14) which has a hydrophilic character and is overall heat-insulating, the outer metal layer (13), due to its small thickness, hardly being able to contribute to heat transport.
  • Such a printing cylinder (10) is assigned an image information transmission unit (15) within the printing press, via which the image information is transferred to the surface of the printing form (12, 13) in the form of ink-accepting surface elements.
  • the transmission unit (15) consists of a film (16) with a thermo or electrothermal sensitive coating, the oleophilic, d. h., has ink-accepting properties, and a printhead (17), which can be a heating element, an electrode, an energy beam or any other heat-generating unit.
  • the print head (17) is controlled via the corresponding image signals (18) in such a way that it introduces heat and pressure onto the film (16) at every pixel and thus a selective transfer of the coating of the film onto the surface (14) the printing form (12, 13) transfers where it remains anchored.
  • the film (16) is transported via reserve and roll cylinders (19) and (20).
  • the layer applied to the printing form (12, 13) in this way forms the ink-accepting surface elements.
  • the printing form or the printing form cylinder can be formed in various ways. Instead of the layers with different properties, the entire printing form cylinder can be produced homogeneously from a material which has both properties, namely the thermal insulation and the hydrophilic character. However, only the printing form cylinder surface can also be coated with such a material. It is important in any case that the surface of the printing form or the printing form cylinder is water-accepting and that the over heat introduced into the printhead is preferably not dissipated. In this way it is ensured that the heat layer is transferred to the printing form surface with certainty with the appropriate metered introduction of heat and is also precisely delimited.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Optics & Photonics (AREA)
  • Manufacturing & Machinery (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
EP87113142A 1986-10-23 1987-09-09 Plaque d'impression lithographique Ceased EP0264604A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3636129 1986-10-23
DE19863636129 DE3636129A1 (de) 1986-10-23 1986-10-23 Druckform fuer den flachdruck

Publications (2)

Publication Number Publication Date
EP0264604A2 true EP0264604A2 (fr) 1988-04-27
EP0264604A3 EP0264604A3 (fr) 1989-06-07

Family

ID=6312342

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87113142A Ceased EP0264604A3 (fr) 1986-10-23 1987-09-09 Plaque d'impression lithographique

Country Status (5)

Country Link
US (1) US4846065A (fr)
EP (1) EP0264604A3 (fr)
JP (1) JPS63111054A (fr)
DD (1) DD262623A5 (fr)
DE (1) DE3636129A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4958564A (en) * 1988-10-08 1990-09-25 Man Roland Druckmaschine Ag Method and system for preparing a planographic printing form
EP0368180A3 (en) * 1988-11-09 1990-11-22 M.A.N.-Roland Druckmaschinen Aktiengesellschaft Process for the production of images in a printing cylinder
EP0368179A3 (en) * 1988-11-09 1990-11-22 M.A.N.-Roland Druckmaschinen Aktiengesellschaft Process and apparatus for integrated printing form production at an offset machine
EP0368178A3 (en) * 1988-11-09 1990-11-28 M.A.N.-Roland Druckmaschinen Aktiengesellschaft Process for direct image formation in printing cylinders
EP0368177A3 (en) * 1988-11-09 1990-12-05 M.A.N.-Roland Druckmaschinen Aktiengesellschaft Process for the production of intaglio printing plates
EP0531878A1 (fr) * 1991-09-12 1993-03-17 MAN Roland Druckmaschinen AG Cylindre d'impression dans une machine à imprimer offset
EP0678379A3 (fr) * 1994-04-15 1995-12-06 Heidelberger Druckmasch Ag
EP0698488A1 (fr) * 1994-08-27 1996-02-28 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Dispositif et méthode de fabrication d'une plaque d'impression

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5072671A (en) * 1988-11-09 1991-12-17 Man Roland Druckmaschinen Ag System and method to apply a printing image on a printing machine cylinder in accordance with electronically furnished image information
JPH04224964A (ja) * 1990-12-27 1992-08-14 Brother Ind Ltd 電子スタンプ装置
US5188033A (en) * 1991-07-08 1993-02-23 Rockwell International Corporation Direct-to-press imaging system for use in lithographic printing
US5129321A (en) * 1991-07-08 1992-07-14 Rockwell International Corporation Direct-to-press imaging system for use in lithographic printing
JP3311408B2 (ja) * 1992-04-20 2002-08-05 株式会社リコー 画像形成方法及び画像形成装置
FR2700296B1 (fr) * 1993-01-14 1995-02-24 Nipson Procédé d'impression et presse pour la mise en Óoeuvre.
US5440987A (en) * 1994-01-21 1995-08-15 Presstek, Inc. Laser imaged seamless lithographic printing members and method of making
US5816161A (en) * 1994-07-22 1998-10-06 Man Roland Druckmaschinen Ag Erasable printing plate having a smooth pore free metallic surface
US5819661A (en) * 1995-01-23 1998-10-13 Presstek, Inc. Method and apparatus for laser imaging of lithographic printing members by thermal non-ablative transfer
US5570636A (en) * 1995-05-04 1996-11-05 Presstek, Inc. Laser-imageable lithographic printing members with dimensionally stable base supports
US5632204A (en) * 1995-07-27 1997-05-27 Presstek, Inc. Thin-metal lithographic printing members with integral reflective layers
US5855173A (en) * 1995-10-20 1999-01-05 Eastman Kodak Company Zirconia alloy cylinders and sleeves for imaging and lithographic printing methods
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
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
US5927207A (en) * 1998-04-07 1999-07-27 Eastman Kodak Company Zirconia ceramic imaging member with hydrophilic surface layer and methods of use
JP2000158624A (ja) * 1998-09-25 2000-06-13 Fuji Photo Film Co Ltd 平版印刷方法
JP3422754B2 (ja) * 2000-05-31 2003-06-30 三菱重工業株式会社 印刷用版材の作製方法、再生方法及び印刷機
DE10032703A1 (de) * 2000-07-05 2002-01-17 Koenig & Bauer Ag Verfahren und Einrichtung in Druckmaschinen zum Bebildern von Oberflächen
DE10054284B4 (de) * 2000-11-02 2010-04-08 Manroland Ag Verfahren zur Behandlung einer löschbaren lithographischen Druckform
DE10153794A1 (de) * 2001-10-31 2003-05-22 Roland Man Druckmasch Verfahren und Vorrichtung zur integrierten Druckformerzeugung in einer Verarbeitungsmaschine
US12075598B2 (en) 2020-07-24 2024-08-27 Dell Products L.P. System and method for service life management based on corrosive material removal
US11809246B2 (en) 2020-07-24 2023-11-07 Dell Products L.P. System and method for service life management based on corrosion rate reduction

Family Cites Families (17)

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Publication number Priority date Publication date Assignee Title
US316251A (en) * 1885-04-21 Josef ebeele
US459239A (en) * 1891-09-08 bullock
US748004A (en) * 1900-01-27 1903-12-29 American Lithographic Co Printing-form.
US2344510A (en) * 1939-09-01 1944-03-21 Davidson Mfg Corp Planographic plate
NO76687A (fr) * 1946-09-09
US3283708A (en) * 1961-03-10 1966-11-08 Thermographically produced lithographic printing plates
US3223032A (en) * 1963-10-04 1965-12-14 Hercules Powder Co Ltd Graining process
US3229628A (en) * 1964-05-22 1966-01-18 Donnelley & Sons Co Printing plate and method of making the same
US3280736A (en) * 1964-06-08 1966-10-25 Metalgamica S A Multi-metal planographic printing plates
DE1571903A1 (de) * 1965-12-22 1970-12-17 Krause Willy Verfahren zur Herstellung von mehrschichtigen Offsetdruckplatten
US3441940A (en) * 1966-09-15 1969-04-29 Phonocopy Inc Process for electro-junction thermography
US3929594A (en) * 1973-05-18 1975-12-30 Fromson H A Electroplated anodized aluminum articles
US3968278A (en) * 1974-05-28 1976-07-06 Xerox Corporation Imaging method
JPS5217902A (en) * 1975-08-01 1977-02-10 Fuji Photo Film Co Ltd Lithographic press plate
US4376814A (en) * 1982-03-18 1983-03-15 American Hoechst Corporation Ceramic deposition on aluminum
DE3248178C2 (de) * 1982-12-27 1987-02-19 Forschungsgesellschaft Druckmaschinen E.V., 6000 Frankfurt Bildmäßige Beschichtung von Druckformen für den Flachdruck
US4537127A (en) * 1984-09-12 1985-08-27 Rockwell International Corporation Black oxide lithographic ink metering roller

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4958564A (en) * 1988-10-08 1990-09-25 Man Roland Druckmaschine Ag Method and system for preparing a planographic printing form
EP0363842A3 (en) * 1988-10-08 1990-11-22 M.A.N.-Roland Druckmaschinen Aktiengesellschaft Process for the production of printing plates
EP0368180A3 (en) * 1988-11-09 1990-11-22 M.A.N.-Roland Druckmaschinen Aktiengesellschaft Process for the production of images in a printing cylinder
EP0368179A3 (en) * 1988-11-09 1990-11-22 M.A.N.-Roland Druckmaschinen Aktiengesellschaft Process and apparatus for integrated printing form production at an offset machine
EP0368178A3 (en) * 1988-11-09 1990-11-28 M.A.N.-Roland Druckmaschinen Aktiengesellschaft Process for direct image formation in printing cylinders
EP0368177A3 (en) * 1988-11-09 1990-12-05 M.A.N.-Roland Druckmaschinen Aktiengesellschaft Process for the production of intaglio printing plates
EP0531878A1 (fr) * 1991-09-12 1993-03-17 MAN Roland Druckmaschinen AG Cylindre d'impression dans une machine à imprimer offset
US5293817A (en) * 1991-09-12 1994-03-15 Man Roland Druckmaschinen Ag Combined dampening and lithographic form cylinder and method of imaging
EP0678379A3 (fr) * 1994-04-15 1995-12-06 Heidelberger Druckmasch Ag
US5655454A (en) * 1994-04-15 1997-08-12 Heidelberger Druckmaschinen Ag Layered impression cylinder and method of operation
EP0698488A1 (fr) * 1994-08-27 1996-02-28 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Dispositif et méthode de fabrication d'une plaque d'impression
US5601022A (en) * 1994-08-27 1997-02-11 Man Roland Druckmaschinen Ag Process and device for producing a printing form with a narrow transfer foil

Also Published As

Publication number Publication date
EP0264604A3 (fr) 1989-06-07
DE3636129A1 (de) 1988-05-05
JPS63111054A (ja) 1988-05-16
DD262623A5 (de) 1988-12-07
DE3636129C2 (fr) 1988-10-20
US4846065A (en) 1989-07-11

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Inventor name: MAYRHOFER, OTTO, DIPL.-ING.

Inventor name: PLASCHKA, REINHARD, DIPL.-ING. (FH)

Inventor name: FUHRMANN HARTMUT, DIPL.-PHYS.