WO2009135672A1 - Reusable offset printing plate - Google Patents

Reusable offset printing plate Download PDF

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Publication number
WO2009135672A1
WO2009135672A1 PCT/EP2009/003265 EP2009003265W WO2009135672A1 WO 2009135672 A1 WO2009135672 A1 WO 2009135672A1 EP 2009003265 W EP2009003265 W EP 2009003265W WO 2009135672 A1 WO2009135672 A1 WO 2009135672A1
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WO
WIPO (PCT)
Prior art keywords
printing plate
layer
cover layer
plate according
titanium
Prior art date
Application number
PCT/EP2009/003265
Other languages
German (de)
French (fr)
Inventor
Peter Arthur BÖHMER
Dieter Otto Paul Junkers
Original Assignee
Boehmer Peter Arthur
Dieter Otto Paul Junkers
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
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Application filed by Boehmer Peter Arthur, Dieter Otto Paul Junkers filed Critical Boehmer Peter Arthur
Publication of WO2009135672A1 publication Critical patent/WO2009135672A1/en

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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
    • 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
    • B41N1/083—Printing plates or foils; Materials therefor metallic for lithographic printing made of aluminium or aluminium alloys or having such surface layers
    • 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

Definitions

  • the invention is directed to a multi-use offset printing plate of a Sussembly, a thermally insulating intermediate layer thereon and a functional outer layer for use in printing machines.
  • WO 2006/066851 A1 which describes such a multipurpose offset printing plate, which is characterized in that aluminum is used as the carrier substrate, with an intermediate layer of low thermal conductivity with an anodized aluminum layer, wherein the upper cover layer of titanium and / or molybdenum or their alloys is formed.
  • This known offset printing plate already has a number of advantages, it is particularly economical to manufacture and allows multiple writing so as to be used repeatedly.
  • the object of the present invention is to provide such an offset printing plate, which can be produced while maintaining the multiple writability in a continuous process.
  • this object is achieved according to the invention in that the carrier material of steel, stainless steel, aluminum, Al alloys, titanium, titanium alloys, copper and / or brass is formed, at least one intermediate layer as thermal insulation between substrate and more functional
  • BESTATIGUNGSKOPIE Cover layer in particular of a ceramic and / or metallic layer is formed, wherein the cover layer formed from a functional for the imaging of the printing plates layer of ceramic or metal, such as zirconia, titanium nitride, boron nitride, aluminum, titanium, molybdenum and / or corresponding alloys is.
  • a functional for the imaging of the printing plates layer of ceramic or metal such as zirconia, titanium nitride, boron nitride, aluminum, titanium, molybdenum and / or corresponding alloys is.
  • an offset printing plate which corresponds to the quality characteristics required of them, it can be produced, in particular, in an economically reasonable framework and enables an optimization of the cost / benefit ratio. Alleged economic or material-related disadvantages, as indicated in the generic document, have not been confirmed.
  • the insulating layer may be ceramic (significantly greater thermal insulation, factor 10 to 100 zr ZrO 2 compared to Ti) or metallic.
  • the metallic cover layer serves the durability of the printing plate, the absence of cracks (ductility of the metals) and the affinity to printing inks (polar chemicals). Since ceramic layers already have a high hardness and the vacuum methods mentioned yield pore-free and crack-free layers, the required affinity can also be set by adapting the printing ink to ceramics. Then the metal layer with the factor 10-100 lower thermal affinity could be omitted. This would make the printing plate much more powerful in terms of "erasing” and “rewriting” with laser (UV) energy.
  • a ceramic cover layer may optionally be provided in order to likewise achieve a high affinity for the printing ink, wherein a ceramic cover layer can simultaneously have a wear-inhibiting effect and can form a degree of thermal insulation.
  • the present invention extends the possibilities for producing a rewritable offset printing plate by a new range of applicable coatings (ceramic, metal) taking into account existing manufacturing methods and the ability to use substrates other than aluminum.
  • the preparation is preferably carried out inline as a blackboard or roll.
  • printing plates of particularly high quality can be produced in an economical manner, since the possible bandwidth of the coating and substrate parameters makes optimum adaptation to the special requirements of the rewriting / extinguishing technology of the printing press, in particular surface thermal resistance, surface quality, feasible .
  • Another advantage of the invention is that all common coating methods can be used for the coating method, which greatly simplifies the production of such printing plates. Embodiments of the invention will become apparent from the dependent claims.
  • the thermally insulating intermediate layer to be vaporized by a vacuum method, such as sputtering, vacuum vapor deposition, electron beam evaporation, with / without plasma activation and / or a plasma coating method and / or by magnetron sputtering, plasma-activated evaporation (PEPVD). , Plasma CVD od. Like. is applied.
  • a vacuum method such as sputtering, vacuum vapor deposition, electron beam evaporation, with / without plasma activation and / or a plasma coating method and / or by magnetron sputtering, plasma-activated evaporation (PEPVD).
  • PEPVD plasma-activated evaporation
  • the intermediate layer can also consist of a metallic alloy, in particular of Fe / Cr / Ni.
  • the invention takes advantage of the finding that a ceramic has excellent thermal insulation with sufficient surface quality, while titanium and stainless steel have excellent surface area with sufficient thermal insulation, so that the invention uses these two elements in combination as double layer with excellent surface and excellent thermal insulation.
  • the bandwidths of the respective material and layer thicknesses according to the invention are that, as is known, the support material has a thickness of 0.05 to 2 mm, the intermediate layer being e.g. has a thickness of 0.3 mm, which in itself is e.g. is known from the generic document.
  • the insulating intermediate layer may have a thickness of 1 to 25 ⁇ m and the cover layer a thickness of 1 to 10 ⁇ m.
  • the invention consists in an embodiment in that as starting material, for example, an aluminum strip is used, which is subjected after pretreatment of a ZrO 2 coating and after cooling another Ti coating, resulting in a closed manufacturing process (in-line process), the For example, under vacuum can take place.
  • the insulating intermediate layer and / or the covering layer may consist of a combination of metallic and ceramic layer, of one or more metallic layers or of one or more ceramic layers, as is likewise provided in an embodiment of the invention.
  • the invention also provides that the intermediate layer and the cover layer are formed as a combination layer, e.g. on a carrier material made of stainless steel, a ceramic cover layer.
  • This "two-layeredness" can be advantageous if the performance and conditions of the intermediate layer, be it from the support material or the cover layer, can be taken over or compensated for by these layers.
  • Another feature of the invention is characterized in that the material for the offset printing plate is manufactured in a continuous process.
  • the advantage of the present invention is that all the steps mentioned in the continuous process, i. inline, can be performed.
  • aluminum is used as a strip or as a sheet, designated by 1 in the figure, for pre-material, which material is supplied for further treatment.
  • This further treatment has production steps in a so-called inline process.
  • This closed production bears the reference numeral 2, it is a pretreatment 3, the application of, for example, a thermally insulating coating 4, such as with stainless steel or ZrO 2 , a cooling step 5 and the application 6 a functional cover layer for rewritability (pictures and Erase) of at least one ceramic and / or metallic layer. All steps can take place under vacuum.
  • the transport step is merely indicated and denoted by 7.

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  • Printing Plates And Materials Therefor (AREA)

Abstract

The invention relates to an offset printing plate that can be reused several times and that consists of a carrier material, a thermally isolating intermediate layer that is arranged thereon and a functional cover layer for use in printing machines. Said cover layer can be produced in a continuous method whilst at the same time maintaining its multiple writing properties. Said invention is characterised in that the carrier material is made of steel, stainless steel, aluminium, Al -alloys, titanium, titanium alloys, copper and/or brass, at least one intermediate layer being thermally isolated between the carrier material and the functional cover layer, in particular consisting of a ceramic and/or metallic layer. The cover layer consists of a ceramic or metal functional layer, for example, zirconium dioxide, titanium nitride, boron nitride, aluminium, titanium, molybdenum and/or corresponding alloys, and is used to illustrate the printing plates.

Description

'Wiederverwendbare Offset-Druckplatte" 'Reusable offset printing plate'
Die Erfindung richtet sich auf eine vielfach verwendbare Offset-Druckplatte aus einem Trägertnaterial, einer darauf befindlichen thermisch isolierenden Zwischenschicht und einer funktionellen Deckschicht zum Einsatz in Druckmaschinen.The invention is directed to a multi-use offset printing plate of a Trägertnaterial, a thermally insulating intermediate layer thereon and a functional outer layer for use in printing machines.
Den Ausgangspunkt der vorliegenden Erfindung bildet die WO 2006/066851 Al, die eine derartige, vielfach verwendbare Offset-Druckplatte beschreibt, die sich dadurch auszeichnet, dass als Trägersubstrat Aluminium eingesetzt wird, mit einer Zwischenlage aus geringer thermischer Leitfähigkeit mit einer anodisierten Aluminiumschicht, wobei die obere Deckschicht aus Titan und/oder Molybdän oder deren Legierungen gebildet ist.The starting point of the present invention is WO 2006/066851 A1, which describes such a multipurpose offset printing plate, which is characterized in that aluminum is used as the carrier substrate, with an intermediate layer of low thermal conductivity with an anodized aluminum layer, wherein the upper cover layer of titanium and / or molybdenum or their alloys is formed.
Diese bekannte Offset-Druckplatte weist bereits eine Reihe von Vorteilen auf, sie ist insbesondere wirtschaftlich in der Herstellung und ermöglicht ein vielfaches Beschreiben, um so mehrfach eingesetzt werden zu können.This known offset printing plate already has a number of advantages, it is particularly economical to manufacture and allows multiple writing so as to be used repeatedly.
Die Aufgabe der vorliegenden Erfindung besteht darin, eine derartige Offset-Druckplatte zu schaffen, die bei Beibehaltung der vielfachen Beschreibbarkeit in einem kontinuierlichen Verfahren herstellbar ist.The object of the present invention is to provide such an offset printing plate, which can be produced while maintaining the multiple writability in a continuous process.
Mit einer Offset-Druckplatte der eingangs bezeichneten Art wird diese Aufgabe gemäß der Erfindung dadurch gelöst, dass das Trägermaterial aus Stahl, Edelstahl, Aluminium, Al-Le- gierungen, Titan, Titanlegierungen, Kupfer und/oder Messing gebildet ist, wenigstens eine Zwischenschicht als thermische Isolierung zwischen Trägermaterial und funktionellerWith an offset printing plate of the type described, this object is achieved according to the invention in that the carrier material of steel, stainless steel, aluminum, Al alloys, titanium, titanium alloys, copper and / or brass is formed, at least one intermediate layer as thermal insulation between substrate and more functional
BESTATIGUNGSKOPIE Deckschicht, insbesondere aus einer keramischen und/oder metallischen Schicht gebildet ist, wobei die Deckschicht aus einer für die Bebilderung der Druckplatten funktionellen Schicht aus Keramik oder Metall, wie z.B. Zirkoniumdioxid, Titannitrid, Bornitrid, Aluminium, Titan, Molybdän und/oder entsprechenden Legierungen gebildet ist.BESTATIGUNGSKOPIE Cover layer, in particular of a ceramic and / or metallic layer is formed, wherein the cover layer formed from a functional for the imaging of the printing plates layer of ceramic or metal, such as zirconia, titanium nitride, boron nitride, aluminum, titanium, molybdenum and / or corresponding alloys is.
Andere Versuche, die Druckplatten wieder einsetzen zu können, d.h. mehrfach beschreiben zu können, zeigt die DE 10 2005 011 192 Al, die DE 101 38 772 Al oder die DE 100 21 451, um nur zwei Beispiele zu nennen. Druckplattengestaltungen zeigen auch die US 2007/0056456 Al oder die DE 1 584 485 A2.Other attempts to reuse the printing plates, i. DE 10 2005 011 192 A1, DE 101 38 772 A1 or DE 100 21 451, to name only two examples, can be described several times. Printing plate designs also show US 2007/0056456 A1 or DE 1 584 485 A2.
Mit der Erfindung wird eine Offset-Druckplatte geschaffen, die den an sie geforderten Qualitätsmerkmalen entspricht, sie ist insbesondere in wirtschaftlich vernünftigem Rahmen herstellbar und ermöglicht eine Optimierung des Kosten-/ Nutzenverhältnisses. Vermeintlich wirtschaftliche oder materialbedingte Nachteile, wie sie in der gattungsbildenden Druckschrift angedeutet sind, haben sich nicht bestätigt.With the invention, an offset printing plate is provided which corresponds to the quality characteristics required of them, it can be produced, in particular, in an economically reasonable framework and enables an optimization of the cost / benefit ratio. Alleged economic or material-related disadvantages, as indicated in the generic document, have not been confirmed.
Zur Aktivierung der Druckplatte wird z.B. Laserenergie oder UV wird benötigt, um die Druckfarbe flächig zu entfernen (überschreiben) oder lokal (Dot) zu aktivieren. Um die Energie an der Oberfläche (große Eindringtiefe heißt Verlust von lokaler Energie auf der Oberfläche, wo sie benötigt wird) und in der Fläche klein (Dot) und begrenzt zu halten, sind thermisch hoch isolierende Schichten nötig. Die isolierende Schicht kann keramisch sein (deutlich größere thermische Isolation, Faktor 10 bis 100 z.b. ZrO2 gegenüber Ti) oder metallisch.To activate the printing plate, for example, laser energy or UV is needed to remove the ink surface (overwrite) or local (dot) to activate. In order to keep the energy at the surface (large penetration means loss of local energy on the surface where it is needed) and in the surface small (dot) and limited, thermally highly insulating layers are needed. The insulating layer may be ceramic (significantly greater thermal insulation, factor 10 to 100 zr ZrO 2 compared to Ti) or metallic.
Die metallische Deckschicht dient der Haltbarkeit der Druckplatte, der Rissfreiheit (Duktilität der Metalle) und der Affinität zu Druckfarben (polare Chemikalien) . Da keramische Schichten bereits eine hohe Härte aufweisen und die genannten Vakuumverfahren poren- und rissfreie Schichten ergeben, kann durch Anpassung der Druckfarbe auch gegenüber Keramiken die nötige Affinität eingestellt werden. Dann könnte die Metallschicht mit der Faktor 10-100 schlechteren thermischen Affinität entfallen. Dies würde die Druckplatte wesentlich leistungsfähiger in Bezug auf "Löschen" und "Wiederbeschreiben" mit Laser (UV) -Energie machen.The metallic cover layer serves the durability of the printing plate, the absence of cracks (ductility of the metals) and the affinity to printing inks (polar chemicals). Since ceramic layers already have a high hardness and the vacuum methods mentioned yield pore-free and crack-free layers, the required affinity can also be set by adapting the printing ink to ceramics. Then the metal layer with the factor 10-100 lower thermal affinity could be omitted. This would make the printing plate much more powerful in terms of "erasing" and "rewriting" with laser (UV) energy.
Eine keramische Deckschicht kann ggf. vorgesehen, um ebenfalls eine hohe Affinität zur Druckfarbe zu erreichen, wobei eine keramische Deckschicht gleichzeitig verschleißhemmend wirken und eine gewisse thermische Isolierung bilden kann.A ceramic cover layer may optionally be provided in order to likewise achieve a high affinity for the printing ink, wherein a ceramic cover layer can simultaneously have a wear-inhibiting effect and can form a degree of thermal insulation.
Die vorliegende Erfindung erweitert die Möglichkeiten zur Herstellung einer wiederbeschreibbaren Offset-Druckplatte durch ein neues Spektrum der einsetzbaren Beschichtungen (Keramik, Metall) unter Berücksichtigung existierender Fertigungsmethoden sowie die Möglichkeit, andere Substrate als Aluminium einzusetzen. Die Herstellung ist vorzugsweise inline als Tafel oder Rolle durchzuführen.The present invention extends the possibilities for producing a rewritable offset printing plate by a new range of applicable coatings (ceramic, metal) taking into account existing manufacturing methods and the ability to use substrates other than aluminum. The preparation is preferably carried out inline as a blackboard or roll.
Gemäß der Erfindung können Druckplatten von besonders hoher Güte auf wirtschaftliche Weise hergestellt werden, da durch die mögliche Bandbreite der Beschichtungs- und Substratparameter eine optimale Anpassung an die speziellen Anforderungen der Wiederbeschreib- /Löschtechnik der Druckmaschine, insbesondere thermischer Widerstand der Oberfläche, Oberflächenqualität, machbar ist. Ein weiterer Vorteil der Erfindung besteht darin, dass für die Beschichtungsweise alle gängigen Beschichtungsverfahren eingesetzt werden können, was die Herstellung derartiger Druckplatten stark vereinfacht . Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen. Dabei kann beispielsweise vorgesehen sein, dass die thermisch isolierende Zwischenschicht durch ein Vakuumverfahren, wie Sputtern, Vakuumbedampfen, Elektronenstrahl - verdampfen, mit/ohne Plasma-Aktivierung und/oder ein Plas- mabeschichtungsverfahren und/oder durch Magnetron-Sputtern, plasmaaktivierte Verdampfung (PEPVD), Plasma-CVD od. dgl . aufgebracht ist.According to the invention, printing plates of particularly high quality can be produced in an economical manner, since the possible bandwidth of the coating and substrate parameters makes optimum adaptation to the special requirements of the rewriting / extinguishing technology of the printing press, in particular surface thermal resistance, surface quality, feasible , Another advantage of the invention is that all common coating methods can be used for the coating method, which greatly simplifies the production of such printing plates. Embodiments of the invention will become apparent from the dependent claims. In this case, provision can be made, for example, for the thermally insulating intermediate layer to be vaporized by a vacuum method, such as sputtering, vacuum vapor deposition, electron beam evaporation, with / without plasma activation and / or a plasma coating method and / or by magnetron sputtering, plasma-activated evaporation (PEPVD). , Plasma CVD od. Like. is applied.
Vorteilhaft kann es sein, wenn eine Zwischenschicht aus Zr- Oxid, Al-Oxid, Ti-Carbid, Ti-borid, Ti-Nitrid der gleichen und/oder aus diese Oxide, Carbide, Nitride, Boride enthaltenden Mischungen und/oder eines Metalles, insbesondere aus Titan, gebildet ist.It can be advantageous if an intermediate layer of Zr oxide, Al oxide, Ti carbide, Ti boride, Ti nitride of the same and / or of these oxides, carbides, nitrides, borides containing mixtures and / or a metal, in particular of titanium.
Die Zwischenschicht kann auch aus einer metallischen Legierung, insbesondere aus Fe/Cr/Ni, bestehen. Die Erfindung macht sich die Erkenntnis zu Nutze, dass eine Keramik eine exzellente thermische Isolierung aufweist bei einer ausreichenden Oberflächenqualität, während Titan und Edelstahl eine exzellente Oberfläche aufweist bei ausreichende thermischer Isolierung, so dass die Erfindung diese beiden Elemente in Kombination nutzt als Doppelschicht mit exzellenter Oberfläche und exzellenter thermischer Isolierung.The intermediate layer can also consist of a metallic alloy, in particular of Fe / Cr / Ni. The invention takes advantage of the finding that a ceramic has excellent thermal insulation with sufficient surface quality, while titanium and stainless steel have excellent surface area with sufficient thermal insulation, so that the invention uses these two elements in combination as double layer with excellent surface and excellent thermal insulation.
Die Bandbreiten der jeweiligen Material- und Schichtdicken bestehen nach der Erfindung darin, dass, wie an sich bekannt, das Trägermaterial eine Dicke von 0,05 bis 2 mm aufweist, wobei die Zwischenschicht z.B. eine Dicke von 0,3 mm aufweist, was für sich gesehen z.B. aus der gattungsbildenden Druckschrift bekannt ist.The bandwidths of the respective material and layer thicknesses according to the invention are that, as is known, the support material has a thickness of 0.05 to 2 mm, the intermediate layer being e.g. has a thickness of 0.3 mm, which in itself is e.g. is known from the generic document.
Die isolierende Zwischenschicht kann eine Dicke von i bis 25 μm aufweisen und die Deckschicht eine Dicke von 1 bis 10 μm. Die Erfindung besteht in Ausgestaltung darin, dass als Vormaterial beispielsweise ein Aluminiumband eingesetzt wird, das nach Vorbehandlung einer ZrO2-Beschichtung unterworfen wird und nach Kühlen einer weiteren Ti-Beschichtung, woraus sich eine geschlossene Fertigungsweise (in-line-process) ergibt, der beispielsweise unter Vakuum stattfinden kann.The insulating intermediate layer may have a thickness of 1 to 25 μm and the cover layer a thickness of 1 to 10 μm. The invention consists in an embodiment in that as starting material, for example, an aluminum strip is used, which is subjected after pretreatment of a ZrO 2 coating and after cooling another Ti coating, resulting in a closed manufacturing process (in-line process), the For example, under vacuum can take place.
Die isolierende Zwischenschicht und/oder die Deckschicht kann aus einer Kombination von metallischer und keramischer Schicht bestehen, aus einer oder mehreren metallischen Schichten oder aus einer oder mehreren keramischen Schichten, wie dies in Ausgestaltung der Erfindung ebenfalls vorgesehen ist.The insulating intermediate layer and / or the covering layer may consist of a combination of metallic and ceramic layer, of one or more metallic layers or of one or more ceramic layers, as is likewise provided in an embodiment of the invention.
Die Erfindung sieht auch vor, dass die Zwischenschicht und die Deckschicht als eine Kombinationsschicht ausgebildet sind, z.B. auf einem Trägermaterial aus Edelstahl eine keramische Deckschicht. Diese "Zweischichtigkeit" kann vorteilhaft sein, wenn Leistungen und Bedingungen der Zwischenschicht, sei es von dem Trägermaterial oder der Deckschicht, übernommen werden können bzw. von diesen Schichten kompensiert werden.The invention also provides that the intermediate layer and the cover layer are formed as a combination layer, e.g. on a carrier material made of stainless steel, a ceramic cover layer. This "two-layeredness" can be advantageous if the performance and conditions of the intermediate layer, be it from the support material or the cover layer, can be taken over or compensated for by these layers.
Ein weiteres Merkmal der Erfindung zeichnet sich dadurch aus, dass das Material für die Offset-Druckplatte in einem kontinuierlichen Prozess gefertigt ist.Another feature of the invention is characterized in that the material for the offset printing plate is manufactured in a continuous process.
Geht man von der gattungsbildenden Verfahrensweise aus, so liegt der Vorteil der vorliegenden Erfindung darin, dass alle genannten Schritte im kontinuierlichen Prozess, d.h. inline, durchgeführt werden können.Assuming the generic method, the advantage of the present invention is that all the steps mentioned in the continuous process, i. inline, can be performed.
Die Erfindung ist anhand der beigefügten prinzipiellen Skizze näher erläutert. Im dargestellten Beispiel wird als vor Vormaterial Aluminium als Band oder als Tafel, in der Figur mit 1 bezeichnet, eingesetzt, das der weiteren Behandlung zugeführt wird.The invention is explained in more detail with reference to the attached schematic diagram. In the example shown, aluminum is used as a strip or as a sheet, designated by 1 in the figure, for pre-material, which material is supplied for further treatment.
Diese weitere Behandlung weist Fertigungsschritte in einem sogenannten Inline-Prozess auf. Diese geschlossene Fertigung trägt das Bezugszeichen 2, es handelt sich dabei um eine Vorbehandlung 3, das Aufbringen z.B. einer thermisch isolierenden Beschichtung 4, wie z.B. mit Edelstahl oder ZrO2, einen Abkühlschritt 5 sowie das Aufbringen 6 einer funktionalen Deckschicht für die Wiederbeschreibbarkeit (Bebildern und Löschen) aus wenigstens einer keramischen und/oder metallischen Schicht. Alle Schritte können unter Vakuum stattfinden.This further treatment has production steps in a so-called inline process. This closed production bears the reference numeral 2, it is a pretreatment 3, the application of, for example, a thermally insulating coating 4, such as with stainless steel or ZrO 2 , a cooling step 5 and the application 6 a functional cover layer for rewritability (pictures and Erase) of at least one ceramic and / or metallic layer. All steps can take place under vacuum.
Der Transportschritt ist lediglich angedeutet und mit 7 bezeichnet .The transport step is merely indicated and denoted by 7.
Natürlich ist das beschriebene Ausführungsbeispiel der Erfindung noch in vielfacher Hinsicht abzuändern, ohne den Grundgedanken zu verlassen. So ist die Erfindung, wie weiter oben schon angegegeben, nicht auf die angegebenen Materialien und Herstellungsverfahren eingeschränkt. Of course, the described embodiment of the invention is still to be modified in many ways, without departing from the spirit. Thus, as already stated above, the invention is not restricted to the materials and production methods specified.

Claims

Patentansprüche : Claims:
1. Vielfach verwendbare Offset-Druckplatte aus einem Trägermaterial, einer darauf befindlichen thermisch isolierenden Zwischenschicht und einer funtionellen Deckschicht zum Einsatz in Druckmaschinen, dadurch gekennzeichnet, dass das Trägermaterial aus Stahl, Edelstahl, Aluminium, Al -Legierungen, Titan, Titanlegierungen, Kupfer und/oder Messing gebildet ist, wenigstens eine Zwischenschicht als thermische Isolierung zwischen Trägermaterial und funktioneller Deckschicht, insbesondere aus einer keramischen und/oder metallischen Schicht gebildet ist, wobei die Deckschicht aus einer für die Bebilderung der Druckplatten funktionellen Schicht aus Keramik oder Metall, wie z.B. Zirkoniumdioxid, Titannitrid, Bornitrid, Aluminium, Titan, Molybdän und/oder entsprechenden Legierungen gebildet ist.1. Multi-purpose offset printing plate of a carrier material, a thermally insulating intermediate layer thereon and a funtionellen cover layer for use in printing machines, characterized in that the carrier material of steel, stainless steel, aluminum, Al alloys, titanium, titanium alloys, copper and / or brass is formed, at least one intermediate layer is formed as a thermal insulation between the carrier material and functional cover layer, in particular of a ceramic and / or metallic layer, wherein the cover layer of a functional for the imaging of the printing plates layer of ceramic or metal, such as Zirconia, titanium nitride, boron nitride, aluminum, titanium, molybdenum and / or corresponding alloys.
2. Druckplatte nach Anspruch 1, dadurch gekennzeichnet, dass die thermisch isolierende Zwischenschicht und/oder die Deckschicht durch ein Vakuumverfahren, wie Sputtern, Vakuumbedampfen, Elektronenstrahlverdampfen, mit/ohne Plasma- Aktivierung und/oder ein Plasmabeschichtungsverfahren und/oder durch Magnetron-Sputtern, plasmaaktivierte Verdampfung (PEPVD), Plasma-CVD od. dgl . aufgebracht ist.2. Printing plate according to claim 1, characterized in that the thermally insulating intermediate layer and / or the cover layer by a vacuum method, such as sputtering, vacuum evaporation, electron beam evaporation, with / without plasma activation and / or a plasma coating process and / or by magnetron sputtering, plasma activated evaporation (PEPVD), plasma CVD or the like is applied.
3. Druckplatte nach Anspruch 1 oder 2 , dadurch gekennzeichnet, dass eine Zwischenschicht aus Zr-Oxid, Al-Oxid, Ti-Carbid, Ti-borid, Ti -Nitrid der gleichen und/oder aus diese Oxide, Carbide, Nitride, Boride enthaltenden Mischungen und/oder eines Metalles, insbesondere aus Titan, gebildet ist.3. Printing plate according to claim 1 or 2, characterized in that an intermediate layer of Zr oxide, Al oxide, Ti carbide, Ti boride, Ti nitride of the same and / or these oxides, Carbide, nitrides, borides containing mixtures and / or a metal, in particular of titanium, is formed.
4. Druckplatte nach einem der vorhanden Ansprüche, dadurch gekennzeichnet , dass, wie an sich bekannt, das Trägermaterial eine Dicke von 0,05 bis 2 mm aufweist, insbesondere eine Dicke von 0,3 mm aufweist.4. Printing plate according to one of the existing claims, characterized in that, as is known, the carrier material has a thickness of 0.05 to 2 mm, in particular has a thickness of 0.3 mm.
5. Druckplatte nach einem der vorhanden Ansprüche, dadurch gekennzeichnet, dass die isolierende Zwischenschicht eine Dicke von 1 bis 25 μm aufweist.5. Printing plate according to one of the existing claims, characterized in that the insulating intermediate layer has a thickness of 1 to 25 microns.
6. Druckplatte nach einem der vorhanden Ansprüche, dadurch gekennzeichnet, dass die Deckschicht eine Dicke von 1 bis 10 μm aufweist.6. Printing plate according to one of the existing claims, characterized in that the cover layer has a thickness of 1 to 10 microns.
7. Druckplatte nach einem der vorhanden Ansprüche, dadurch gekennzeichnet, dass die isolierende Zwischenschicht und/oder die Deckschicht aus einer Kombination von metallischer und keramischer Schicht besteht.7. Printing plate according to one of the existing claims, characterized in that the insulating intermediate layer and / or the cover layer consists of a combination of metallic and ceramic layer.
8. Druckplatte nach einem der vorhanden Ansprüche, dadurch gekennzeichnet, dass die isolierende Zwischenschicht und/oder die Deckschicht aus einer oder mehreren metallischen oder keramischen Schichten besteht .8. Printing plate according to one of the existing claims, characterized in that the insulating intermediate layer and / or the cover layer consists of one or more metallic or ceramic layers.
9. Druckplatte nach einem der vorhanden Ansprüche, dadurch gekennzeichnet, dass die Zwischenschicht und die Deckschicht als eine Kombinationsschicht ausgebildet sind, z.B. auf einem Trägermaterial aus Edelstahl eine keramische Deckschicht. 9. Printing plate according to one of the existing claims, characterized in that the intermediate layer and the cover layer are formed as a combination layer, for example on a substrate made of stainless steel, a ceramic cover layer.
10. Druckplatte nach einem der vorhanden Ansprüche, dadurch gekennzeichnet, dass das Material für die Offset-Druckplatte in einem kontinuierlichen Prozess gefertigt ist. 10. Printing plate according to one of the existing claims, characterized in that the material for the offset printing plate is manufactured in a continuous process.
PCT/EP2009/003265 2008-05-08 2009-05-07 Reusable offset printing plate WO2009135672A1 (en)

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DE200810022860 DE102008022860A1 (en) 2008-05-08 2008-05-08 Reusable offset printing plate

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Citations (4)

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US20030183105A1 (en) * 2002-03-27 2003-10-02 Matthias Riepenhoff Process for obtaining image information of an illustrated printing form, device for this and printing press
US20050028698A1 (en) * 1999-01-18 2005-02-10 Fuji Photo Film Co., Ltd. Offset printing method and printing apparatus using the same
US20070181025A1 (en) * 2004-08-25 2007-08-09 Heidelberger Druckmaschinen Ag Method for manufacturing a printing form and printing form with thermally insulating layer
US20080026145A1 (en) * 2004-12-22 2008-01-31 Heidelberger Druckmaschinen Ag Re-useable offset printing plate and method for producing the printing plate

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DE10021451A1 (en) 2000-05-03 2001-11-08 Heidelberger Druckmasch Ag Controlled imaging and deletion of a printing form made of metallic titanium
DE10138772A1 (en) 2000-09-07 2002-03-28 Heidelberger Druckmasch Ag Re-writable print form or block for use with meltable ink has an arrangement of layers on its outer surface that ensures there is little tangential heat transfer and so high print quality
US7524605B2 (en) * 2004-04-09 2009-04-28 Fujifilm Corporation Lithographic printing plate precursor and lithographic printing method
DE102005011192A1 (en) * 2005-03-09 2006-09-28 Heidelberger Druckmaschinen Ag Method and apparatus for treating a reproducible printing form
KR101147079B1 (en) * 2005-08-25 2012-05-17 엘지디스플레이 주식회사 method for manufacturing of printing plate

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Publication number Priority date Publication date Assignee Title
US20050028698A1 (en) * 1999-01-18 2005-02-10 Fuji Photo Film Co., Ltd. Offset printing method and printing apparatus using the same
US20030183105A1 (en) * 2002-03-27 2003-10-02 Matthias Riepenhoff Process for obtaining image information of an illustrated printing form, device for this and printing press
US20070181025A1 (en) * 2004-08-25 2007-08-09 Heidelberger Druckmaschinen Ag Method for manufacturing a printing form and printing form with thermally insulating layer
US20080026145A1 (en) * 2004-12-22 2008-01-31 Heidelberger Druckmaschinen Ag Re-useable offset printing plate and method for producing the printing plate

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