EP3331707A1 - Method for reusing a gravure printing cylinder - Google Patents

Method for reusing a gravure printing cylinder

Info

Publication number
EP3331707A1
EP3331707A1 EP16750433.1A EP16750433A EP3331707A1 EP 3331707 A1 EP3331707 A1 EP 3331707A1 EP 16750433 A EP16750433 A EP 16750433A EP 3331707 A1 EP3331707 A1 EP 3331707A1
Authority
EP
European Patent Office
Prior art keywords
gravure
diameter
gravure printing
reusing
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.)
Withdrawn
Application number
EP16750433.1A
Other languages
German (de)
French (fr)
Inventor
Clemens Brinkmann
Ulrich Harte
Alexander JANOSCHKA
Rudi WEIS-SCHIFF
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.)
Janoschka Holding GmbH
Windmoeller and Hoelscher KG
Original Assignee
Janoschka Holding GmbH
Windmoeller and Hoelscher KG
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 Janoschka Holding GmbH, Windmoeller and Hoelscher KG filed Critical Janoschka Holding GmbH
Publication of EP3331707A1 publication Critical patent/EP3331707A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N3/00—Preparing for use and conserving printing surfaces
    • B41N3/003—Preparing for use and conserving printing surfaces of intaglio formes, e.g. application of a wear-resistant coating, such as chrome, on the already-engraved plate or cylinder; Preparing for reuse, e.g. removing of the Ballard shell; Correction of the engraving
    • 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
    • B41N1/20—Curved printing plates, especially cylinders made of metal or similar inorganic compounds, e.g. plasma coated ceramics, carbides
    • 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 invention relates to a method for the reuse of gravure cylinders and corresponding gravure cylinders, which are suitable for this method.
  • Rotogravure machine required rotogravure cylinder stored in a nearby warehouse. As soon as a corresponding gravure cylinder is needed, it is transported from the warehouse to the gravure printing machine and inserted into the respective inking unit. After completion of the print job, the gravure cylinder is then transported back to the warehouse.
  • gravure cylinders are relatively expensive to produce.
  • the gravure cylinder thus represents a valuable storage product with extremely high storage costs, since the useful life in relation to the storage time is negligible.
  • the object of the invention is therefore to optimize the production and storage of gravure cylinders economically.
  • This object is achieved by a method for reusing a gravure cylinder, wherein the outer diameter of the gravure cylinder with a machining of a first diameter to a smaller second Diameter is reduced and in which the surface of the second diameter is coated gravfurertig.
  • the basic idea of the invention is therefore that a used gravure cylinder is not stored until the same print job is next in line, but that a once-used gravure cylinder is used immediately for a new print job and adjusted accordingly.
  • Prolonged pressure selected over the previous print job so that the outer diameter of the gravure cylinder can be reduced by a machining from a first diameter to a smaller second diameter and so at the same time a new surface for the new engraving can be created.
  • the gravure cylinder has a supporting shaft core on which an extruded plastic layer is applied during the first production.
  • the supporting shaft core can consist of a solid material or of a tube.
  • materials for the supporting shaft core for example, steel or a fiber composite material into consideration.
  • a gravurfertige layer is applied to the extruded plastic layer.
  • FIG. 3 shows a gravure cylinder according to the invention after a second
  • Embodiment, and Fig. 4 is a gravure cylinder according to the invention after a third
  • Fig. 1 shows a system 101 for reuse of gravure cylinders.
  • the system 101 consists of at least one supplier 102 and several
  • Printers 103, 104 each have a plant 105, 017 with a gravure printing machine and an ERP system 106, 108 for controlling the print jobs and logistics (ERP stands for "Enterprise Resource Planning” and refers to entrepreneurial task of planning and controlling the required resources in the sense of the company's purpose in a timely manner and according to requirements).
  • ERP Enterprise Resource Planning
  • the at least one supplier 102 has facilities 109, 1 10 and 1 1 1 for the production, storage and disposal of gravure cylinders.
  • the ERP system 106 of the printing company 1 assigns an order 1 13 to the ERP system 1 12 of the supplier 102. This order is acknowledged by the confirmation 1 14, wherein in the acknowledgment in particular the delivery date for the new gravure cylinder is included.
  • Fig. 2 shows a gravure cylinder according to the invention after a first
  • the gravure cylinder consists of a supporting shaft 201 with a high rigidity. As materials come here in particular steel or CFRP into consideration.
  • a gravurfertige layer 203 is applied, wherein the Gravurfertige layer 203 can be applied to the plastic surface of the plastic sheath 202 by the usual method of plastic metallization.
  • Fig. 3 shows a gravure cylinder according to the invention according to a second embodiment.
  • the cylinder body 301 is now completely made
  • Fig. 4 shows a gravure cylinder according to the invention according to a third embodiment.
  • the gravure cylinder here consists of an aluminum jacket 401, on the front side corresponding steel sleeves 402 and 403 and corresponding shaft journals 404 and 405 are recognized. On the jacket of the aluminum jacket 401, in turn, a gravure-ready layer 406 is applied.

Landscapes

  • Printing Plates And Materials Therefor (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)

Abstract

The invention relates to a method for reusing gravure printing cylinders, and a corresponding gravure cylinder suitable for this method. In order to optimise the production and storage of gravure printing cylinders in terms of cost, a method is proposed for reusing a gravure printing cylinder, in which the outer diameter of the gravure printing cylinder is reduced by machining from a first diameter to a smaller second diameter, the surface of the second diameter being coated ready for gravure printing.

Description

Verfahren zur Wiederverwendung eines Tiefdruck-Zylinders  Method of reusing a gravure cylinder
Die Erfindung betrifft ein Verfahren zur Wiederverwendung von Tiefdruck-Zylindern sowie entsprechende Tiefdruck-Zylinder, die für dieses Verfahren geeignet sind. The invention relates to a method for the reuse of gravure cylinders and corresponding gravure cylinders, which are suitable for this method.
Zum Betreiben einer Tiefdruckmaschine werden üblicherweise die für die To operate a gravure printing machine are usually for the
Tiefdruckmaschine benötigten Tiefdruck-Zylinder in einem nahe gelegenen Lager aufbewahrt. Sobald ein entsprechender Tiefdruck-Zylinder benötigt wird, wird dieser aus dem Lager zu der Tiefdruckmaschine transportiert und in das jeweilige Farbwerk eingesetzt. Nach Abschluss des Druckauftrags wird dann der Tiefdruck-Zylinder wieder in das Lager zurücktransportiert. Rotogravure machine required rotogravure cylinder stored in a nearby warehouse. As soon as a corresponding gravure cylinder is needed, it is transported from the warehouse to the gravure printing machine and inserted into the respective inking unit. After completion of the print job, the gravure cylinder is then transported back to the warehouse.
Im Gegensatz zu den Druckformen anderer Drucktechniken sind Tiefdruck-Zylinder in der Herstellung allerdings verhältnismäßig kostenaufwendig. Der Tiefdruck- Zylinder stellt damit ein wertvolles Lagergut dar mit extrem hohen Lagerkosten dar, da die Nutzzeit im Verhältnis zu der Lagerzeit verschwindend gering ist. In contrast to the printing plates of other printing techniques, however, gravure cylinders are relatively expensive to produce. The gravure cylinder thus represents a valuable storage product with extremely high storage costs, since the useful life in relation to the storage time is negligible.
Aufgabe der Erfindung ist es daher, die Herstellung und Lagerung von Tiefdruck- Zylindern wirtschaftlich zu optimieren. The object of the invention is therefore to optimize the production and storage of gravure cylinders economically.
Diese Aufgabe wird durch ein Verfahren zur Wiederverwendung eines Tiefdruck- Zylinders gelöst, bei dem der Außendurchmesser des Tiefdruck-Zylinders mit einer spanenden Bearbeitung von einem ersten Durchmesser auf einen kleineren zweiten Durchmesser verringert wird und bei dem die Oberfläche des zweiten Durchmessers gravurfertig beschichtet wird. This object is achieved by a method for reusing a gravure cylinder, wherein the outer diameter of the gravure cylinder with a machining of a first diameter to a smaller second Diameter is reduced and in which the surface of the second diameter is coated gravfurertig.
Der grundsätzliche Gedanke der Erfindung besteht also darin, dass ein gebrauchter Tiefdruck-Zylinder nicht so lange gelagert wird, bis derselbe Druckauftrag erneut an der Reihe ist, sondern dass ein einmal gebrauchter Tiefdruck-Zylinder umgehend für einen neuen Druckauftrag verwendet und entsprechend angepasst wird. The basic idea of the invention is therefore that a used gravure cylinder is not stored until the same print job is next in line, but that a once-used gravure cylinder is used immediately for a new print job and adjusted accordingly.
Als neuer Druckauftrag wird hierbei ein Druckauftrag mit einer geringeren As a new print job here is a print job with a lower
Drucklänger gegenüber dem vorangehenden Druckauftrag ausgewählt, sodass der Außendurchmesser des Tiefdruck-Zylinders mit einer spanenden Bearbeitung von einem ersten Durchmesser auf einen kleineren zweiten Durchmesser verringert werden kann und so gleichzeitig eine neue Oberfläche für die neue Gravur geschaffen werden kann. Prolonged pressure selected over the previous print job, so that the outer diameter of the gravure cylinder can be reduced by a machining from a first diameter to a smaller second diameter and so at the same time a new surface for the new engraving can be created.
Nach einer besonderen Ausführungsform ist vorgesehen, dass der Tiefdruck-Zylinder einen tragenden Wellenkern aufweist, auf den bei der ersten Herstellung eine extrudierte Kunststoff-Schicht aufgetragen wird. Der tragende Wellenkern kann dabei aus einem Vollmaterial oder auch aus einem Rohr bestehen. Als Werkstoffe für den tragenden Wellenkern kommen zum Beispiel Stahl oder ein Faserverbundwerkstoff in Betracht. According to a particular embodiment, it is provided that the gravure cylinder has a supporting shaft core on which an extruded plastic layer is applied during the first production. The supporting shaft core can consist of a solid material or of a tube. As materials for the supporting shaft core, for example, steel or a fiber composite material into consideration.
Nach einer weiteren bevorzugten Ausführungsform ist vorgesehen, dass auf die extrudierte Kunststoff-Schicht eine gravurfertige Schicht aufgetragen wird. According to a further preferred embodiment, it is provided that a gravurfertige layer is applied to the extruded plastic layer.
Weitere Einzelheiten und Vorteile der Erfindung werden anhand der beigefügten Zeichnungen beschrieben. In diesen zeigen: Further details and advantages of the invention will be described with reference to the accompanying drawings. In these show:
Fig. 1 ein System zur Wiederverwendung von Tiefdruck-Zylindern, 1 shows a system for reuse of gravure cylinders,
Fig. 2 einen Tiefdruck-Zylinder gemäß der Erfindung nach einem ersten 2 shows a gravure cylinder according to the invention after a first
Ausführungsbeispiel,  Embodiment,
Fig. 3 einen Tiefdruck-Zylinder gemäß der Erfindung nach einem zweiten 3 shows a gravure cylinder according to the invention after a second
Ausführungsbeispiel, und Fig. 4 einen Tiefdruck-Zylinder gemäß der Erfindung nach einem dritten Embodiment, and Fig. 4 is a gravure cylinder according to the invention after a third
Ausführungsbeispiel.  Embodiment.
Fig. 1 zeigt ein System 101 zur Wiederverwendung von Tiefdruck-Zylindern. Das System 101 besteht aus mindestens einem Lieferanten 102 sowie mehreren Fig. 1 shows a system 101 for reuse of gravure cylinders. The system 101 consists of at least one supplier 102 and several
Druckereien 103, 104. Die Druckereien 103, 104 weisen jeweils ein Werk 105, 017 mit einer Tiefdruckmaschine sowie ein ERP-System 106, 108 zur Steuerung der Druckaufträge und der Logistik auf (ERP steht für "Enterprise-Resource-Planning" und bezeichnet die unternehmerische Aufgabe, die benötigten Ressourcen im Sinne des Unternehmenszwecks rechtzeitig und bedarfsgerecht zu planen und zu steuern).  Printers 103, 104. The printers 103, 104 each have a plant 105, 017 with a gravure printing machine and an ERP system 106, 108 for controlling the print jobs and logistics (ERP stands for "Enterprise Resource Planning" and refers to entrepreneurial task of planning and controlling the required resources in the sense of the company's purpose in a timely manner and according to requirements).
Der mindestens eine Lieferant 102 weist Betriebsstätten 109, 1 10 und 1 1 1 zur Herstellung, Lagerung und Entsorgung von Tiefdruck-Zylindern auf. The at least one supplier 102 has facilities 109, 1 10 and 1 1 1 for the production, storage and disposal of gravure cylinders.
Im Folgenden wird der Ablauf eines Druckauftrags ohne Beschränkung der The following is the flow of a print job without limitation
Allgemeinheit anhand von der Druckerei 1 beschrieben: Generality described by the printer 1:
Das ERP-System 106 der Druckerei 1 vergibt einen Auftrag 1 13 an das ERP-System 1 12 des Lieferanten 102. Dieser Auftrag wird durch die Bestätigung 1 14 quittiert, wobei in der Quittierung insbesondere der Liefertermin für den neuen Tiefdruck- Zylinder enthalten ist. The ERP system 106 of the printing company 1 assigns an order 1 13 to the ERP system 1 12 of the supplier 102. This order is acknowledged by the confirmation 1 14, wherein in the acknowledgment in particular the delivery date for the new gravure cylinder is included.
Zu dem vereinbarten Termin erfolgt zunächst die Herstellung des Tiefdruck-Zylinders bzw. Bereitstellung des Tiefdruck-Zylinders und sodann die Lieferung 1 15 At the agreed date, the production of the gravure cylinder or provision of the gravure cylinder and then the delivery 1 15 takes place first
(beispielsweise über eine Spedition). Bei dieser Gelegenheit kann im Gegenzug eine Abholung 1 16 gebrauchter Zylinder erfolgen, die nach Bedarf dem Lager 1 10 oder der Entsorgung 1 1 1 bzw. einem Recycling-Prozess 1 17 zugeführt werden. Fig. 2 zeigt einen Tiefdruck-Zylinder gemäß der Erfindung nach einem ersten (for example, via a freight forwarder). On this occasion, a pick-up 1 16 used cylinders can be made in return, which are supplied to the warehouse 1 10 or disposal 1 1 1 or a recycling process 1 17 as needed. Fig. 2 shows a gravure cylinder according to the invention after a first
Ausführungsbeispiel. Der Tiefdruck-Zylinder besteht aus einer tragenden Welle 201 mit einer hohen Steifigkeit. Als Materialien kommen hier insbesondere Stahl oder CFK in Betracht. Um die tragende Welle herum ist ein Kunststoffmantel 202 vorgesehen, auf dem eine gravurfertige Schicht 203 aufgebracht ist, wobei die gravurfertige Schicht 203 nach den üblichen Verfahren der Kunststoffmetallisierung auf die Kunststoffoberfläche des Kunststoffmantels 202 aufgetragen werden kann. Embodiment. The gravure cylinder consists of a supporting shaft 201 with a high rigidity. As materials come here in particular steel or CFRP into consideration. Around the supporting shaft around a plastic sheath 202 is provided, on which a gravurfertige layer 203 is applied, wherein the Gravurfertige layer 203 can be applied to the plastic surface of the plastic sheath 202 by the usual method of plastic metallization.
Fig. 3 zeigt einen Tiefdruck-Zylinder gemäß der Erfindung nach einem zweiten Ausführungsbeispiel. Der Zylinderkörper 301 besteht nunmehr komplett aus Fig. 3 shows a gravure cylinder according to the invention according to a second embodiment. The cylinder body 301 is now completely made
Kunststoff. Zur Lagerung sind an den Stirnseiten entsprechende Stahl-Manschetten 302 und 303 sowie entsprechende Wellenzapfen 304 und 305 aufgesetzt. Auf dem Mantel des Zylinderkörpers 301 ist wiederum eine gravurfertige Schicht 306 aufgebracht.  Plastic. For storage corresponding steel sleeves 302 and 303 and corresponding shaft journals 304 and 305 are attached to the end faces. On the jacket of the cylinder body 301, in turn, a gravure-ready layer 306 is applied.
Fig. 4 zeigt einen Tiefdruck-Zylinder gemäß der Erfindung nach einem dritten Ausführungsbeispiel. Der Tiefdruck-Zylinder besteht hier aus einem Aluminium- Mantel 401 , an dem stirnseitig entsprechende Stahl-Manschetten 402 und 403 sowie entsprechende Wellenzapfen 404 und 405 angesetzt sind. Auf dem Mantel des Aluminium-Mantels 401 ist wiederum eine gravurfertige Schicht 406 aufgebracht. Fig. 4 shows a gravure cylinder according to the invention according to a third embodiment. The gravure cylinder here consists of an aluminum jacket 401, on the front side corresponding steel sleeves 402 and 403 and corresponding shaft journals 404 and 405 are recognized. On the jacket of the aluminum jacket 401, in turn, a gravure-ready layer 406 is applied.

Claims

Patentansprüche claims
Verfahren zur Wiederverwendung eines Tiefdruck-Zylinders, bei dem der Außendurchmesser des Tiefdruck-Zylinders mit einer spanenden Bearbeitung von einem ersten Durchmesser auf einen kleineren zweiten Durchmesser verringert wird und bei dem die Oberfläche des zweiten Durchmessers gravurfertig beschichtet wird. A method of reusing a rotogravure cylinder, wherein the outer diameter of the gravure cylinder is machined from a first diameter to a smaller second diameter, and wherein the surface of the second diameter is gravure coated.
Verfahren nach Anspruch 1 , wobei der Tiefdruck-Zylinder einen tragenden Wellenkern aufweist, auf den bei der ersten Herstellung eine extrudierte Kunststoff-Schicht aufgetragen wird. The method of claim 1, wherein the gravure cylinder comprises a supporting shaft core to which an extruded plastic layer is applied in the first manufacture.
Verfahren nach einem der Ansprüche 1 - 2, wobei der tragende Wellenkern aus einem Vollmaterial oder aus einem Rohr besteht. Method according to one of claims 1 - 2, wherein the supporting shaft core consists of a solid material or of a tube.
Verfahren nach Anspruch 3, wobei der tragende Wellenkern aus Stahl oder einem Faserverbundwerkstoff besteht. The method of claim 3, wherein the supporting shaft core is made of steel or a fiber composite material.
Verfahren nach einem der Ansprüche 1 - 4, wobei auf die extrudierte Method according to one of claims 1-4, wherein the extruded
Kunststoff-Schicht eine gravurfertige Schicht aufgetragen wird. Plastic layer is applied to a gravurfertige layer.
EP16750433.1A 2015-08-06 2016-08-05 Method for reusing a gravure printing cylinder Withdrawn EP3331707A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015010013 2015-08-06
PCT/EP2016/068775 WO2017021538A1 (en) 2015-08-06 2016-08-05 Method for reusing a gravure printing cylinder

Publications (1)

Publication Number Publication Date
EP3331707A1 true EP3331707A1 (en) 2018-06-13

Family

ID=56682110

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16750433.1A Withdrawn EP3331707A1 (en) 2015-08-06 2016-08-05 Method for reusing a gravure printing cylinder

Country Status (3)

Country Link
EP (1) EP3331707A1 (en)
CN (1) CN108136808A (en)
WO (1) WO2017021538A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113799512B (en) * 2020-06-12 2023-03-10 乐凯华光印刷科技有限公司 Double-layer structure photosensitive elastomer of flexible photosensitive printing plate, preparation method of double-layer structure photosensitive elastomer and flexible photosensitive printing plate comprising double-layer structure photosensitive elastomer

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5878664A (en) * 1997-07-15 1999-03-09 Hartka; Theodore J Printing system and method
DE10126264A1 (en) * 2001-05-29 2002-12-05 Giesecke & Devrient Gmbh Photogravure printing cylinder has roller body and ceramic coating that carries laser gravure pattern; ceramic coating has re-faced surface and is applied to roller body used at least once before
DE102005052156A1 (en) * 2005-11-02 2007-05-03 Man Roland Druckmaschinen Ag Method for gravure print by means of detachable and reusable gravure cylinder, involves basic grid designed on maximal color quantity and impression of basic grid of gravure blank shape are simultaneously filled with filling material
DE202008009068U1 (en) * 2008-04-07 2008-09-18 Sächsische Walzengravur GmbH Gravure printing or embossing mold as sleeve or cylinder
DE102009010081A1 (en) * 2009-02-18 2010-08-19 Sächsische Walzengravur GmbH Gravure printing- and embossing mold for use as e.g. sleeve, has functional layer formed as electrically non-conductive polymer layer with electrically conductive layer, and electro-plated metal layer provided on functional layer
CA2710691A1 (en) * 2009-09-30 2011-03-30 Garry Machine Mfg. Inc. Process for refurbishing cylinder rolls and bases for printing machines
CN102632740A (en) * 2012-04-25 2012-08-15 深圳市嘉拓自动化技术有限公司 Intaglio roller for coating battery material in intaglio printing device and manufacturing method thereof
PL2943350T3 (en) * 2013-01-08 2019-05-31 Paramount Int Services Ltd Method of refurbishing rotogravure cylinders, rotogravure cylinders and their use

Also Published As

Publication number Publication date
CN108136808A (en) 2018-06-08
WO2017021538A1 (en) 2017-02-09

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