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EP1808293A1 - Printing cylinder for flexography - Google Patents

Printing cylinder for flexography Download PDF

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Publication number
EP1808293A1
EP1808293A1 EP06000667A EP06000667A EP1808293A1 EP 1808293 A1 EP1808293 A1 EP 1808293A1 EP 06000667 A EP06000667 A EP 06000667A EP 06000667 A EP06000667 A EP 06000667A EP 1808293 A1 EP1808293 A1 EP 1808293A1
Authority
EP
European Patent Office
Prior art keywords
printing
cylinder
layer
printing cylinder
cylinder body
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.)
Withdrawn
Application number
EP06000667A
Other languages
German (de)
French (fr)
Inventor
Andreas Kückelmann
Wolfgang Brusdeilins
Bodo Steinmeier
Wilfried Tappe
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.)
Fischer and Krecke GmbH and Co KG
Inometa Coatings GmbH
Original Assignee
Fischer and Krecke GmbH and Co KG
Inometa Coatings GmbH
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 Fischer and Krecke GmbH and Co KG, Inometa Coatings GmbH filed Critical Fischer and Krecke GmbH and Co KG
Priority to EP06000667A priority Critical patent/EP1808293A1/en
Priority to US11/622,151 priority patent/US20070163456A1/en
Publication of EP1808293A1 publication Critical patent/EP1808293A1/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/08—Cylinders
    • B41F13/10—Forme 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
    • B41N1/00—Printing plates or foils; Materials therefor
    • B41N1/16—Curved printing plates, especially 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
    • B41N1/00—Printing plates or foils; Materials therefor
    • B41N1/16—Curved printing plates, especially cylinders
    • B41N1/22—Curved printing plates, especially cylinders made of other substances

Definitions

  • the present invention relates to a printing cylinder for flexographic printing according to the preamble of claim 1.
  • the printing cylinder comprises a cylinder body made of a carbon fiber composite material, which forms a self-supporting sleeve, which is supported at its ends by disks on a cylinder core.
  • This sleeve carries the clichés that form the printing form and glued to the outer surface of the sleeve or clamped on it.
  • a disadvantage of this construction are the abutting edges, which are formed at the places where the edges of the clichés are joined together on the sleeve. During the printing process, the abutting edges lead to disruptions in the concentricity of the printing cylinder, such as the so-called "bouncing", ie a sudden rebound during the start of the abutting edge on the adjoining cylinder.
  • Object of the present invention is therefore to provide a printing cylinder of the type mentioned, which has optimal operating characteristics, but at the same time is relatively simple.
  • the printing cylinder according to the invention comprises a jacket layer of a polymer which is formed integrally with the cylinder body.
  • This cladding layer itself forms the printing form and can be treated for this purpose, for example by means of laser engraving or by a photopolymer process. If one chooses a material with advantageous rebound properties for the cladding layer, vibrations are cushioned during the rotation of the printing cylinder and the running properties are improved.
  • adapter sleeves or the like can be completely dispensed with, so that the overall structure is substantially simplified.
  • the pressure cylinder 10 shown in Figure 1 comprises a cylinder core 12 made of steel, which is provided at its two ends with upstanding on the end faces 14, 16 of the cylinder core 12 stub axles 18, which serve for storage in a machine frame.
  • the printing cylinder 10 comprises a cylinder body 20 which is formed by a cylindrical sleeve made of a carbon fiber composite material, which surrounds the cylinder core 12 coaxially and is spaced therefrom.
  • the carbon fiber composite material of the cylinder body 20 may be, for example, a skeleton of diagonal wound Carbon fibers, which are embedded in a matrix of plastic.
  • the cylinder body 20 itself is also non-rotatably on its inner surface 22 and free of play connected to the discs 26, so that the cylinder core 12, discs 26 and cylinder body 20 form a rotationally connected unit.
  • this structure is made EP 1 025 996 A1 known.
  • the cladding layer 36 is made of a polymer and forms the printing forme of the printing cylinder 10.
  • the outer circumferential surface 38 of the cladding layer 36 which here forms the outer surface of the printing cylinder 10 is suitably processed, for example by an engraving process such as laser engraving or by a photopolymer method in which a photopolymer forming the cladding layer 36 is exposed and the unexposed areas are chemically dissolved out.
  • an engraving process for example rubber is also suitable as a material for forming the cladding layer 36.
  • the material of the jacket layer 36 advantageously has a suitable rebound resilience, so that the jacket layer 36 absorbs and absorbs vibrations and shocks transmitted from an adjacent, adjacent to the AuJ3en Structure 38 of the printing cylinder 10 further roller can.
  • the printing cylinder 10 according to the invention thus combines the advantages of a comparatively simple structure with good running characteristics. It is also possible, unlike the structure shown in Figure 1, for example, to use a solid cylinder body and to dispense with the inner structure shown in Figure 1 with a cylinder core 12 and discs 26 as a spacer.
  • Figure 2 shows the cylinder body 20 with the coated thereon shell layer 36 in cross-section, omitting the internal construction of the printing cylinder 10, ie without cylinder core 12 and discs 26.
  • intermediate layers may be arranged, as in cross section of the printing cylinder 40 is shown in Figure 3.
  • the intermediate layer 42 shown there also consists of a polymer which, however, is softer than the polymer of the cladding layer 36. In this way, the running properties of the printing cylinder 10 can be further optimized.
  • a thin protective layer 44 is applied, which protects the printing form of the cladding layer 36 from damage, but does not affect the surface shape and properties during printing.
  • the cladding layer 36 and possibly other existing layers 42, 44 are removed from the cylinder body 20 by rotation, so that the peripheral surface 34 is exposed again and a new cladding layer 36 can be applied, the in the gravure or photopolymer method to a new printing form is processed.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)

Abstract

The cylinder (10) has a cylinder body made of a carbon fiber composite material and carrying a printing pattern on a peripheral surface (34) of the body. The printing pattern is formed by a jacket layer (36) made of polymer such as rubber and photo polymer, where the layer is formed with the cylinder body as a single piece. An intermediate layer is interposed between the peripheral surface of the cylinder body and the jacket layer. The intermediate layer consists of a material that is softer than the jacket layer.

Description

Die vorliegende Erfindung betrifft einen Druckzylinder für Flexodruck gemäß dem Oberbegriff des Anspruchs 1.The present invention relates to a printing cylinder for flexographic printing according to the preamble of claim 1.

Zum Einsatz im Flexodruckverfahren sind verschiedene Arten von Druckzylindern bekannt. Gemäß EP 1 025 996 umfaßt der Druckzylinder einen Zylinderkörper aus einem Kohlefaser-Verbundmaterial, der eine selbsttragende Hülse bildet, die an ihren Enden durch Scheiben auf einem Zylinderkern abgestützt ist. Diese Hülse trägt die Klischees, die die Druckform bilden und auf die Mantelfläche der Hülse aufgeklebt oder darauf aufgespannt werden. Nachteilig an dieser Konstruktion sind die Stoßkanten, die an den Stellen gebildet werden, an denen die Ränder der Klischees auf der Hülse zusammengefügt sind. Beim Druckprozeß führen die Stoßkanten zu Störungen beim Rundlauf des Druckzylinders, wie etwa dem sogenannten "Bouncing", d. h. einem schlagartigen Rückprall beim Anlauf der Stoßkante auf dem benachbart anliegenden Zylinder.For use in the flexographic printing process, various types of printing cylinders are known. According to EP 1 025 996 The printing cylinder comprises a cylinder body made of a carbon fiber composite material, which forms a self-supporting sleeve, which is supported at its ends by disks on a cylinder core. This sleeve carries the clichés that form the printing form and glued to the outer surface of the sleeve or clamped on it. A disadvantage of this construction are the abutting edges, which are formed at the places where the edges of the clichés are joined together on the sleeve. During the printing process, the abutting edges lead to disruptions in the concentricity of the printing cylinder, such as the so-called "bouncing", ie a sudden rebound during the start of the abutting edge on the adjoining cylinder.

Es wurde daher vorgeschlagen, die Druckform unmittelbar auf einem Sleeve auszubilden, das auf den Druckzylinder aufgezogen und drehfest mit diesem verbunden wird. Sleeves, wie sie beispielsweise in EP 0 787 597 A2 dargestellt sind, umfassen eine starre Grundhülse mit darauf aufgebrachten weiteren Schichten. Gegenüber herkömmlichen Bauformen, bei welchen auf dem Sleeve ein Klischee als Druckform befestigt werden muß, besteht eine Weiterentwicklung darin, die äußere Schicht des Sleeves im Photopolymer- oder im Gravurverfahren zu behandeln, so daß sie selbst die Druckform bilden kann. Wenngleich auf diese Weise Stoßkanten auf der Oberfläche vermeiden werden, ist zur Erreichung eines guten Paßsitzes auf dem Druckzylinder sowie optimaler Laufeigenschaften ein komplexer Schichtaufbau notwendig, der elastische Schichten einschließt oder einen Adapter erfordert, der zwischen dem Sleeve und der Oberfläche des Druckzylinder-Kerns einliegt. Der Gesamtaufbau des Druckzylinders wird hierdurch vergleichsweise aufwendig.It was therefore proposed to form the printing form directly on a sleeve, which is mounted on the printing cylinder and rotatably connected thereto. Sleeves, such as those in EP 0 787 597 A2 are shown, comprise a rigid base sleeve with further layers applied thereto. Compared to conventional designs in which a cliché must be attached as a printing form on the sleeve, a further development is to treat the outer layer of the sleeve in a photopolymer or in the engraving process, so that they can form the printing form itself. Although in this manner abutting edges on the surface will be avoided, to achieve a good snug fit on the impression cylinder and optimum runnability, a complex layer construction is required which includes elastic layers or requires an adapter which is sandwiched between the sleeve and the surface of the impression cylinder core. The overall structure of the printing cylinder is thereby comparatively expensive.

Aufgabe der vorliegenden Erfindung ist es daher, einen Druckzylinder der eingangs genannten Art zu schaffen, der optimale Laufeigenschaften aufweist, gleichzeitig jedoch vergleichsweise einfach aufgebaut ist.Object of the present invention is therefore to provide a printing cylinder of the type mentioned, which has optimal operating characteristics, but at the same time is relatively simple.

Diese Aufgabe wird erfindungsgemäß durch einen Druckzylinder mit den Merkmalen des Anspruchs 1 gelöst.This object is achieved by a pressure cylinder with the features of claim 1.

Der erfindungsgemäße Druckzylinder umfaßt eine Mantelschicht aus einem Polymer, die einstückig mit dem Zylinderkörper ausgebildet ist. Diese Mantelschicht bildet selbst die Druckform und kann zu diesem Zweck beispielsweise mittels Lasergravur oder durch ein Photopolymer-Verfahren behandelt werden. Wählt man für die Mantelschicht ein Material mit vorteilhaften Rückpralleigenschaften, werden Vibrationen bei der Rotation des Druckzylinders abgefedert und die Laufeigenschaften verbessert. Auf die Verwendung von Sleeves mit aufwendigem Schichtaufbau, Adapterhülsen oder dergleichen kann vollständig verzichtet werden, so daß der der Gesamtaufbau wesentlich vereinfacht wird.The printing cylinder according to the invention comprises a jacket layer of a polymer which is formed integrally with the cylinder body. This cladding layer itself forms the printing form and can be treated for this purpose, for example by means of laser engraving or by a photopolymer process. If one chooses a material with advantageous rebound properties for the cladding layer, vibrations are cushioned during the rotation of the printing cylinder and the running properties are improved. On the use of sleeves with complex layer structure, adapter sleeves or the like can be completely dispensed with, so that the overall structure is substantially simplified.

Vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen.Advantageous embodiments of the invention will become apparent from the dependent claims.

Im folgenden wird ein bevorzugtes Ausführungsbeispiel der Erfindung anhand der Zeichnung näher erläutert.

Figur 1
zeigt einen Längsschnitt durch eine Ausführungsform des erfindungsgemäßen Druckzylinders;
Figur 2
zeigt den Druckzylinder aus Figur 1 im Querschnitt; und
Figur 3
zeigt einen Querschnitt durch eine weitere Ausführungsform des erfindungsgemäßen Druckzylinders.
In the following a preferred embodiment of the invention will be explained in more detail with reference to the drawing.
FIG. 1
shows a longitudinal section through an embodiment of the printing cylinder according to the invention;
FIG. 2
shows the pressure cylinder of Figure 1 in cross section; and
FIG. 3
shows a cross section through a further embodiment of the printing cylinder according to the invention.

Der in Figur 1 gezeigte Druckzylinder 10 umfaßt einen Zylinderkern 12 aus Stahl, der an seinen beiden Enden mit auf den Stirnflächen 14, 16 des Zylinderkerns 12 aufragenden Achsstummeln 18 versehen ist, die zur Lagerung in einem Maschinengestell dienen. Ferner umfaßt der Druckzylinder 10 einen Zylinderkörper 20, der durch eine zylindrische Hülse aus einem Kohlefaser-Verbundmaterial gebildet wird, die den Zylinderkern 12 koaxial umgibt und von diesem beabstandet ist. Bei dem Kohlefaser-Verbundmaterial des Zylinderkörpers 20 kann es sich beispielsweise um ein Gerüst aus diagonal gewikkelten Kohlefasern handeln, die in eine Matrix aus Kunststoff eingebettet sind.The pressure cylinder 10 shown in Figure 1 comprises a cylinder core 12 made of steel, which is provided at its two ends with upstanding on the end faces 14, 16 of the cylinder core 12 stub axles 18, which serve for storage in a machine frame. Further, the printing cylinder 10 comprises a cylinder body 20 which is formed by a cylindrical sleeve made of a carbon fiber composite material, which surrounds the cylinder core 12 coaxially and is spaced therefrom. The carbon fiber composite material of the cylinder body 20 may be, for example, a skeleton of diagonal wound Carbon fibers, which are embedded in a matrix of plastic.

Die Beabstandung der Innenfläche 22 des Zylinderkörpers 20 von der Umfangsoberfläche 24 des Zylinderkerns 12 erfolgt durch flache Scheiben 26, die an den Enden des Zylinderkerns 12 auf diesen aufgesteckt und drehfest und spielfrei auf diesen aufgespannt sind. Diese lösbare Befestigung erfolgt durch hydraulisch aufweitbare Hülsen oder Buchsen 28 auf dem Zylinderkern 12, wie sie beispielsweise in DE 33 09 815 A1 beschrieben sind. In der Figur sind diese Aufspanneinheiten aus Gründen der Übersichtlichkeit vereinfacht dargestellt.The spacing of the inner surface 22 of the cylinder body 20 from the peripheral surface 24 of the cylinder core 12 is effected by flat discs 26 which are attached to the ends of the cylinder core 12 on this and rotatably and play-free clamped on this. This releasable attachment is made by hydraulically expandable sleeves or sockets 28 on the cylinder core 12, as for example in DE 33 09 815 A1 are described. In the figure, these Aufspanneinheiten are shown simplified for the sake of clarity.

Der Zylinderkörper 20 selbst ist an seiner Innenfläche 22 ebenfalls drehfest und spielfrei mit den Scheiben 26 verbunden, so daß Zylinderkern 12, Scheiben 26 und Zylinderkörper 20 eine drehfest verbundene Einheit bilden. Im wesentlichen ist dieser Aufbau aus EP 1 025 996 A1 bekannt.The cylinder body 20 itself is also non-rotatably on its inner surface 22 and free of play connected to the discs 26, so that the cylinder core 12, discs 26 and cylinder body 20 form a rotationally connected unit. In essence, this structure is made EP 1 025 996 A1 known.

Auf seiner äußeren Umfangsoberfläche 34 trägt der Zylinderkörper 20 eine radial äußere Mantelschicht 36, die einstückig mit dem Zylinderkörper 20 ausgebildet ist, also durch ein geeignetes Verfahren auf dessen Umfangsoberfläche 34 aufgeformt sein kann, so daß der Zylinderkörper 20 und die Mantelschicht 36 eine unlösbare Einheit bilden. Die Mantelschicht 36 besteht aus einem Polymer und bildet die Druckform des Druckzylinders 10. Zu diesem Zweck ist die äußere Umfangsoberfläche 38 der Mantelschicht 36, die hier die Außenfläche des Druckzylinders 10 bildet, in geeigneter Weise bearbeitet, beispielsweise durch ein Gravurverfahren wie etwa Lasergravur oder durch ein Photopolymer-Verfahren, bei welchem ein Photopolymer, das die Mantelschicht 36 bildet, belichtet und die unbelichteten Stellen chemisch herausgelöst werden. Beim Einsatz eines Gravurverfahrens eignet sich beispielsweise auch Gummi als Material zur Bildung der Mantelschicht 36.On its outer peripheral surface 34 of the cylinder body 20 carries a radially outer jacket layer 36 which is integrally formed with the cylinder body 20, that can be formed by a suitable method on the peripheral surface 34 so that the cylinder body 20 and the shell layer 36 form an insoluble unit , The cladding layer 36 is made of a polymer and forms the printing forme of the printing cylinder 10. For this purpose, the outer circumferential surface 38 of the cladding layer 36, which here forms the outer surface of the printing cylinder 10, is suitably processed, for example by an engraving process such as laser engraving or by a photopolymer method in which a photopolymer forming the cladding layer 36 is exposed and the unexposed areas are chemically dissolved out. When using an engraving process, for example rubber is also suitable as a material for forming the cladding layer 36.

Zur Erreichung guter Laufeigenschaften des Druckzylinders 10 weist das Material der Mantelschicht 36 vorteilhafterweise eine geeignete Rückprallelastizität auf, so daß die Mantelschicht 36 Vibrationen und Stöße, die von einer benachbarten, an der AuJ3enfläche 38 des Druckzylinders 10 anliegenden weiteren Walze übertragen werden, gut aufnehmen und abfedern kann. Der erfindungsgemäße Druckzylinder 10 vereinigt somit die Vorteile eines vergleichsweise einfachen Aufbaus mit guten Laufeigenschaften. Es ist ferner möglich, abweichend von dem in Figur 1 dargestellten Aufbau beispielsweise einen massiven Zylinderkörper zu verwenden und auf die in Figur 1 dargestellte Innenkonstruktion mit einem Zylinderkern 12 und Scheiben 26 als Abstandshalter zu verzichten.To achieve good running properties of the printing cylinder 10, the material of the jacket layer 36 advantageously has a suitable rebound resilience, so that the jacket layer 36 absorbs and absorbs vibrations and shocks transmitted from an adjacent, adjacent to the AuJ3enfläche 38 of the printing cylinder 10 further roller can. The printing cylinder 10 according to the invention thus combines the advantages of a comparatively simple structure with good running characteristics. It is also possible, unlike the structure shown in Figure 1, for example, to use a solid cylinder body and to dispense with the inner structure shown in Figure 1 with a cylinder core 12 and discs 26 as a spacer.

Figur 2 zeigt den Zylinderkörper 20 mit der darauf aufgetragenen Mantelschicht 36 im Querschnitt unter Weglassung der Innenkonstruktion des Druckzylinders 10, also ohne Zylinderkern 12 und Scheiben 26. Zwischen der Umfangsoberfläche 34 des Zylinderkörpers 20 und der Mantelschicht 36 können Zwischenschichten angeordnet sein, wie es im Querschnitt des Druckzylinders 40 in Figur 3 dargestellt ist. Die dort gezeigte Zwischenschicht 42 besteht ebenfalls aus einem Polymer, das jedoch weicher ist als das Polymer der Mantelschicht 36. Hierdurch können die Laufeigenschaften des Druckzylinders 10 weiter optimiert werden. Ferner ist auf der Umfangsoberfläche 38 der Mantelschicht 36 eine dünne Schutzschicht 44 aufgetragen, die die Druckform der Mantelschicht 36 vor Beschädigungen schützt, deren Oberflächenform und Eigenschaften beim Druck jedoch nicht beeinträchtigt.Figure 2 shows the cylinder body 20 with the coated thereon shell layer 36 in cross-section, omitting the internal construction of the printing cylinder 10, ie without cylinder core 12 and discs 26. Between the peripheral surface 34 of the cylinder body 20 and the cladding layer 36 intermediate layers may be arranged, as in cross section of the printing cylinder 40 is shown in Figure 3. The intermediate layer 42 shown there also consists of a polymer which, however, is softer than the polymer of the cladding layer 36. In this way, the running properties of the printing cylinder 10 can be further optimized. Further, on the circumferential surface 38 of the cladding layer 36, a thin protective layer 44 is applied, which protects the printing form of the cladding layer 36 from damage, but does not affect the surface shape and properties during printing.

Soll die Druckform gewechselt werden, kann die Mantelschicht 36 sowie gegebenenfalls weitere vorhandene Schichten 42, 44 vom Zylinderkörper 20 durch Drehen abgetragen werden, so daß dessen Umfangsoberfläche 34 wieder frei liegt und eine neue Mantelschicht 36 aufgetragen werden kann, die im Gravur- oder Photopolymerverfahren zu einer neuen Druckform verarbeitet wird.If the printing form to be changed, the cladding layer 36 and possibly other existing layers 42, 44 are removed from the cylinder body 20 by rotation, so that the peripheral surface 34 is exposed again and a new cladding layer 36 can be applied, the in the gravure or photopolymer method to a new printing form is processed.

Claims (8)

Druckzylinder (10, 40) für Flexodruck, umfassend einen Zylinderkörper (20) aus einem Kohlefaser-Verbundmaterial, der auf seiner Umfangsoberfläche (34) eine Druckform trägt, dadurch gekennzeichnet, dass die Druckform durch eine Mantelschicht (36) aus einem Polymer gebildet wird, die einstückig mit dem Zylinderkörper (20) ausgebildet ist.A flexographic printing cylinder (10, 40) comprising a cylinder body (20) of carbon fiber composite material carrying on its peripheral surface (34) a printing form, characterized in that the printing form is formed by a cladding layer (36) of a polymer, which is formed integrally with the cylinder body (20). Druckzylinder gemäss Anspruch 1, dadurch gekennzeichnet, dass die Mantelschicht (36) zur Bildung der Druckform mit einer Lasergravur versehen ist.Printing cylinder according to claim 1, characterized in that the jacket layer (36) is provided with a laser engraving to form the printing form. Druckzylinder gemäss Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Mantelschicht (36) aus Gummi besteht.Printing cylinder according to claim 1 or 2, characterized in that the jacket layer (36) consists of rubber. Druckzylinder gemäss Anspruch 1, dadurch gekennzeichnet, dass die Mantelschicht (36) aus einem Photopolymer besteht.Printing cylinder according to claim 1, characterized in that the jacket layer (36) consists of a photopolymer. Druckzylinder gemäss einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass zwischen der Umfangsoberfläche (34) des Zylinderkörpers (20) und der Mantelschicht (36) mindestens eine Zwischenschicht (42) vorhanden ist.Printing cylinder according to one of the preceding claims, characterized in that between the peripheral surface (34) of the cylinder body (20) and the cladding layer (36) at least one intermediate layer (42) is present. Druckzylinder gemäss Anspruch 5, dadurch gekennzeichnet, dass die Zwischenschicht (42) aus einem weicheren Material besteht als die Mantelschicht (36).Printing cylinder according to claim 5, characterized in that the intermediate layer (42) consists of a softer material than the cladding layer (36). Druckzylinder gemäss einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass auf die Umfangsoberfläche (38) der Mantelschicht (36) eine Schutzschicht (44) aufgebracht ist.Printing cylinder according to one of the preceding claims, characterized in that a protective layer (44) is applied to the circumferential surface (38) of the jacket layer (36). Druckzylinder gemäss einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Zylinderkörper (20) eine Hülse ist, die koaxial um einen Zylinderkern (12) herum angeordnet und drehfest und spielfrei lösbar auf diesen aufgespannt ist.Printing cylinder according to one of the preceding claims, characterized in that the cylinder body (20) is a sleeve which is arranged coaxially around a cylinder core (12) around and rotatably and play-releasably mounted on this.
EP06000667A 2006-01-13 2006-01-13 Printing cylinder for flexography Withdrawn EP1808293A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP06000667A EP1808293A1 (en) 2006-01-13 2006-01-13 Printing cylinder for flexography
US11/622,151 US20070163456A1 (en) 2006-01-13 2007-01-11 Flexographic printing cylinder

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EP06000667A EP1808293A1 (en) 2006-01-13 2006-01-13 Printing cylinder for flexography

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EP2357084A1 (en) * 2010-02-11 2011-08-17 IdeON LLC Printing system having a raised image printing cylinder
EP2566693A4 (en) * 2010-05-07 2015-08-26 Tetra Laval Holdings & Finance A plate cylinder

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EP2275372B1 (en) * 2009-07-13 2012-05-30 Texmag GmbH Vertriebsgesellschaft Roller for a printing press
CN108349190A (en) * 2015-10-29 2018-07-31 利乐拉瓦尔集团及财务有限公司 Manufacture the method and apparatus and packaging material of decorated package
PL426518A1 (en) * 2018-07-31 2020-02-10 Frydrych Krzysztof P.P.H.U. Polimerpro Spółka Cywilna Method of producing flexographic photopolymer forms
JP6926276B1 (en) * 2020-05-12 2021-08-25 株式会社村田製作所 Manufacturing method for gravure printing plate rolls, gravure printing equipment, and multilayer ceramic capacitors

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EP0787597A2 (en) 1996-01-31 1997-08-06 POLYWEST KUNSTSTOFFTECHNIK Saueressig & Partner GmbH & Co. KG Sleeve for an intaglio printing cylinder, fabrication process therefore and working procedure of the manufacturing machine
US5860360A (en) * 1996-12-04 1999-01-19 Day International, Inc. Replaceable printing sleeve
EP1025996A1 (en) 1999-02-01 2000-08-09 Fischer & Krecke Gmbh & Co. Forme cylinder
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