EP2070716B1 - Method for mounting a rubber blanket in offset printing - Google Patents

Method for mounting a rubber blanket in offset printing Download PDF

Info

Publication number
EP2070716B1
EP2070716B1 EP07122754.0A EP07122754A EP2070716B1 EP 2070716 B1 EP2070716 B1 EP 2070716B1 EP 07122754 A EP07122754 A EP 07122754A EP 2070716 B1 EP2070716 B1 EP 2070716B1
Authority
EP
European Patent Office
Prior art keywords
blanket
layer
adhesive
mounting
mpa
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.)
Not-in-force
Application number
EP07122754.0A
Other languages
German (de)
French (fr)
Other versions
EP2070716A1 (en
Inventor
Thomas Dr. Dietrich
Michael Jotzo
Arne Weber
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.)
Folex Coating GmbH
Original Assignee
Folex Coating 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 Folex Coating GmbH filed Critical Folex Coating GmbH
Priority to EP07122754.0A priority Critical patent/EP2070716B1/en
Publication of EP2070716A1 publication Critical patent/EP2070716A1/en
Application granted granted Critical
Publication of EP2070716B1 publication Critical patent/EP2070716B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • B41N6/00—Mounting boards; Sleeves Make-ready devices, e.g. underlays, overlays; Attaching by chemical means, e.g. vulcanising
    • 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
    • B41N10/00—Blankets or like coverings; Coverings for wipers for intaglio printing
    • B41N10/02—Blanket structure
    • 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
    • B41N10/00—Blankets or like coverings; Coverings for wipers for intaglio printing
    • B41N10/02—Blanket structure
    • B41N10/04—Blanket structure multi-layer
    • 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
    • B41N2210/00—Location or type of the layers in multi-layer blankets or like coverings
    • B41N2210/06—Backcoats; Back layers; Bottom 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
    • B41N2210/00—Location or type of the layers in multi-layer blankets or like coverings
    • B41N2210/14—Location or type of the layers in multi-layer blankets or like coverings characterised by macromolecular organic compounds

Definitions

  • the present invention relates to a method for assembling blankets in offset printing.
  • the so-called plate cylinder which carries the offset printing plate, transfers the printed image to a blanket, which is mounted on the so-called blanket cylinder.
  • a more or less large flexing work occurs at the contact zones.
  • the blanket dyed by the printing plate transfers the printing ink to the substrate.
  • there is an impression cylinder on the back printing material web which together with the printing material causes a flexing movement on the blanket cylinder.
  • EP 1 078 777 A2 describes a blanket sleeve for a gapless blanket cylinder an offset printing machine. This has an inner, dimensionally stable carrier sleeve as a supporting layer. With the interposition of a primer layer, a compressible elastomer layer is attached whose compressibility is in the range between 7% and 15% at 100 N / cm 2 load. Outside, the seamless cover rubber layer is applied as a printing layer. All layers form seamless, cylindrical bodies and are firmly connected.
  • WO 97/43130 discloses a two-sided blanket for use in offset printing machine with at least one layer of compressible material interposed between two lithographic outer layers and making said blanket two-sided. Regardless of the screening occurs when transferring the color point of the printing form on the blanket and from there to the substrate to transmission problems. The color dots undergo a dot gain and increase the area.
  • vibrations of the cylinders which can result from bearing clearance, imbalance or resonance in the printing press.
  • the modulus of elasticity is measured according to DIN ISO 527-1.
  • the elastic modulus is in the range of 10 MPa to 800 MPa, more preferably in the range of 50 to 100 MPa.
  • Non-elastic layer which is not present according to the invention, denotes layers which have elastic moduli> 1500 MPa.
  • an adhesive adhesive layer is additionally present.
  • Polyurethanes polyvinyl chlorides, silicones, silicone gels, nitrile-butyl rubber, ethylene-propylene rubber, polyethylene, polypropylene and mixtures thereof are suitable for the flexible layer used according to the invention.
  • the pad has a plurality of flexible layers. These may consist of the same or of different polymers.
  • the deformation of the blanket and pad (also called package) is changed so that the contact zone printing plate cylinder - blanket cylinder and / or impression cylinder - blanket cylinder fails relatively flat and does not nestle concavely around the impressing cylinder.
  • FIG. 3b shows a multilayer construction with an adhesive adhesive 2 and two flexible layers 1 and 3.
  • Figure 3c shows a construction with a multilayer pressure-sensitive adhesive adhesive 2 and a flexible layer 1 according to the invention.
  • FIG. 4 shows a construction with an adhesive adhesive 2, a vulcanized silicone gel as a flexible reactive adhesive 5 followed by a plurality of flexible layers, all labeled 4.
  • single-layer to multi-layer structures can be realized cost-effectively, which counteract the milling process under the rubber blanket as underlay film and even have damping properties.
  • the polyurethane film is laminated by means of foil lamination under a contact pressure so with the transfer adhesive that no air bubbles are trapped.
  • the laminating speed, the laminating pressure and the laminating temperature are adjusted accordingly.
  • Example 3 four-layered
  • Polyurethane film Epurex Walopur ® 4100D Thickness 0,600 mm Bonding Company Steel, NC 120 ASL / NC 111B, layer thickness 0,030 mm Polyurethane film Gerband / Swis-chem ® 4220 Thickness 0,350 mm Self-adhesive equipment by lamination with ATP S-4708 EA P080 1635 Final thickness 0,980mm up to 1,000 mm.
  • the 4100D polyurethane film is coated thinly with the adhesive system (e.g., with a wire bar or roller). The solvent in the adhesive is vented. In a lamination process, the polyurethane film 4220 is applied. After a drying time of 10 days, the lamination is done with the transfer adhesive. The laminate of polyurethane films is laminated by means of foil lamination under a contact pressure with the transfer adhesive so that no air bubbles are trapped. The transfer adhesive is applied to the polyurethane layer 4200.
  • the adhesive system e.g., with a wire bar or roller.
  • the solvent in the adhesive is vented.
  • the polyurethane film 4220 is applied. After a drying time of 10 days, the lamination is done with the transfer adhesive.
  • the laminate of polyurethane films is laminated by means of foil lamination under a contact pressure with the transfer adhesive so that no air bubbles are trapped.
  • the transfer adhesive is applied to the polyurethane layer 4200.

Landscapes

  • Printing Plates And Materials Therefor (AREA)

Description

Die vorliegende Erfindung betrifft ein Verfahren zur Montage von Gummitüchern im Offset-Druck.The present invention relates to a method for assembling blankets in offset printing.

Im Offset-Druckprozess wird vom so genannten Plattenzylinder, der die Offset-Druckform trägt, das Druckbild an ein Gummituch, welches auf dem so genannten Gummituchzylinder montiert ist übergeben. Dabei tritt eine mehr oder weniger große Walkarbeit an den Berührungszonen auf.In the offset printing process, the so-called plate cylinder, which carries the offset printing plate, transfers the printed image to a blanket, which is mounted on the so-called blanket cylinder. A more or less large flexing work occurs at the contact zones.

Das von der Druckplatte eingefärbte Gummituch überträgt die Druckfarbe an den Bedruckstoff. Damit dies gelingt, befindet sich auf der rückseitigen Bedruckstoffbahn ein Gegendruckzylinder, der mit dem Bedruckstoff zusammen eine Walkbewegung auf dem Gummituchzylinder verursacht.The blanket dyed by the printing plate transfers the printing ink to the substrate. For this to succeed, there is an impression cylinder on the back printing material web, which together with the printing material causes a flexing movement on the blanket cylinder.

Im Offset-Druckprozess wird das Druckbild als Striche oder Farbpunkte (Druckpunkte) in unterschiedlichen Rasterungen übertragen EP 1 078 777 A2 beschreibt eine Gummituchhülse für einen kanallosen Gummituchzylinder einer Offsetdruckmaschine. Diese weist eine innere, formstabile Trägerhülse als tragende Schicht auf. Unter Zwischenschaltung einer Haftvermittlerschicht ist eine kompressible Elastomerschicht angebunden, deren Kompressibilität im Bereich zwischen 7% und 15% bei 100 N/cm2 Belastung liegt. Außen ist die nahtlose Deckgummischicht als druckende Schicht aufgebracht. Alle Schichten bilden nahtlose, zylindrische Körper und sind fest miteinander verbunden.
WO 97/43130 offenbart ein zweiseitiges Drucktuch für den Einsatz in Offsetdruckmaschine mit wenigstens einer Schicht komprimierbaren Materials, welche zwischen zwei litographischen äußeren Schichten eingefügt ist und die das besagte Drucktuch zweiseitig machen. Unabhängig von der Rasterung kommt es beim Übertragen des Farbpunktes von der Druckform auf das Gummituch und von da auf den Bedruckstoff zu Übertragungsproblemen. Die Farbpunkte erleiden einen Punktzuwachs und vergrößern die Fläche.In the offset printing process, the print image is transferred as lines or color dots (printing dots) in different screenings EP 1 078 777 A2 describes a blanket sleeve for a gapless blanket cylinder an offset printing machine. This has an inner, dimensionally stable carrier sleeve as a supporting layer. With the interposition of a primer layer, a compressible elastomer layer is attached whose compressibility is in the range between 7% and 15% at 100 N / cm 2 load. Outside, the seamless cover rubber layer is applied as a printing layer. All layers form seamless, cylindrical bodies and are firmly connected.
WO 97/43130 discloses a two-sided blanket for use in offset printing machine with at least one layer of compressible material interposed between two lithographic outer layers and making said blanket two-sided. Regardless of the screening occurs when transferring the color point of the printing form on the blanket and from there to the substrate to transmission problems. The color dots undergo a dot gain and increase the area.

Bei diesem Übertragungsprozess der Druckfarbe kommt es zum Walken. Der Walkprozess entsteht beim Eindrücken der kompressiblen und flexiblen Komponenten des Gummituchs. Dabei drücken sich Druckplatten- und auch Gegendruckzylinder konkav in den oberen Schichten ab. Durch diesen Prozess verändern sich die Bildpunkte des Offsetdrucks hinsichtlich der Lage im Druckbild und der Ausbildung.In this transfer process of the ink it comes to walking. The flexing process is created by pressing in the compressible and flexible components of the blanket. In the process, printing plate and impression cylinders are concave in the upper layers. As a result of this process, the pixels of the offset print change with regard to the position in the printed image and the training.

Ein weiteres Problem im Druckprozess sind Schwingungen der Zylinder, die sich durch Lagerspiel, Unwucht oder Resonanzen in der Druckmaschine ergeben können.Another problem in the printing process are vibrations of the cylinders, which can result from bearing clearance, imbalance or resonance in the printing press.

Bei der Untersuchung dieser Probleme hat sich überraschender Weise gezeigt, dass durch geeignete Unterlagen unter dem Gummituch eine Verbesserung erreicht wird.When investigating these problems, it has surprisingly been found that an improvement is achieved by suitable documents under the blanket.

Aus der Historie und dem Stand der Technik sind Unterlagen unter dem Gummituch bekannt. Beispielsweise werden harte Polyesterfollen, kalandrierte Unterlagekartons oder Polyester-Polyurethan-Laminate verwendet. Kompressible Unterlageelemente zur Anwendung bei der Flexographie oder dem Offsetdruck sind aus EP 1591270 A1 bekannt. Diese umfassen eine Schicht kompakten, nicht geschäumten, elastomeren Materials enthaltend eine Vielzahl von Erhebungen, welche beidseitig durch Leerräume voneinander distanziert vorliegen. Diese können auch selbstklebend ausgerüstet sein, um eine dauerhafte Positionierung auf dem Gummituchzylinder zu ermöglichen. Diese Unterlagen wirken unzureichend den Auswirkungen des beobachteten Walkprozesses entgegen.From the history and the state of the art documents under the blanket are known. For example, hard polyester rolls, calendered backing boards or polyester-polyurethane laminates are used. Compressible underlay elements for use in flexography or offset printing are out EP 1591270 A1 known. These comprise a layer of compact, non-foamed, elastomeric material containing a plurality of elevations, which are spaced apart on both sides by voids. These can also be self-adhesive equipped to allow permanent positioning on the blanket cylinder. These documents are insufficient to counteract the effects of the observed Walk process.

Es besteht daher weiterhin Bedarf nach Möglichkeiten, die den Offset-Druckprozess zu verbessern, insbesondere den Problemen mit der Walkbewegung entgegenwirken.There is therefore still a need for ways to improve the offset printing process, in particular to counteract the problems with the Walk movement.

Gelöst wird die Aufgabe durch ein Verfahren zur Montage eines Gummituchs im Offsetdruck umfassend die Schritte:

  • Montage einer Unterlage, umfassend mindestens eine flexible Schicht, wobei die flexible Schicht ein Elastizitätsmodul im Bereich von 1 MPa bis 1000 MPa aufweist und die Unterlagen keine Schicht mit einem Elastizitätsmodul > 1500 MPa aufweist, auf einen Gummituchzylinder,
  • Montage eines Gummituchs auf der Unterlage.
The object is achieved by a method for assembling a blanket in offset printing comprising the steps:
  • Mounting a pad comprising at least one flexible layer, wherein the flexible layer has a modulus of elasticity in the range of 1 MPa to 1000 MPa and the pad does not have a layer with a modulus of elasticity> 1500 MPa on a blanket cylinder,
  • Mounting a blanket on the base.

Das Elastizitätsmodul wird nach DIN ISO 527-1 gemessen. Bevorzugt liegt das Elastizitätsmodul im Bereich von 10 MPa bis 800 MPa, noch mehr bevorzugt im Bereich von 50 bis 100 MPa.The modulus of elasticity is measured according to DIN ISO 527-1. Preferably, the elastic modulus is in the range of 10 MPa to 800 MPa, more preferably in the range of 50 to 100 MPa.

"Nicht-elastische Schicht", die erfindungsgemäß nicht vorhanden ist, bezeichnet Schichten, die Elastizitätsmodule > 1500 MPa aufweisen."Non-elastic layer", which is not present according to the invention, denotes layers which have elastic moduli> 1500 MPa.

In einer bevorzugten Ausführungsform ist zusätzlich eine Adhäslvklebstoffschicht vorhanden.In a preferred embodiment, an adhesive adhesive layer is additionally present.

Für die erfindungsgemäß eingesetzte flexible Schicht eignen sich Polyurethane, Polyvinylchloride, Silikone, Silikongele, Nitril-Butyl-Gummi, Ethylen-Propylen-Kautschuk, Polyethylen, Polypropylen und Mischungen davon.Polyurethanes, polyvinyl chlorides, silicones, silicone gels, nitrile-butyl rubber, ethylene-propylene rubber, polyethylene, polypropylene and mixtures thereof are suitable for the flexible layer used according to the invention.

In einer Ausführungsform weist die Unterlage mehrere flexible Schichten auf. Dabei können diese aus dem gleichen oder aus unterschiedlichen Polymeren bestehen.In one embodiment, the pad has a plurality of flexible layers. These may consist of the same or of different polymers.

Der durch das erfindungsgemäße Verfahren erhältliche Aufbau ermöglicht:

  1. a) die Aufnahme von Schubkräften in tiefer gelegene Schichten des Aufbaus (Gummituch + Unterlage)
  2. b) die Verlagerung der Materialverdrängung im Walkprozess weg von der Berührungsgrenze Drucktuch und Unterlage in die Unterlage hinein
  3. c) durch die Aufnahme und Verteilung von reversibler Verformungsarbeit, die Schonung von Gummituch (Knautscherstabilität) und Druckmaschine
  4. d) durch die Aufnahme und Dämpfung von Schwingungen der Zylinder die Verbesserung des Druckbildes und Schonung der Druckmaschine In einer Ausführungsform wird zusätzlich ermöglicht
  5. e) die selbstklebende Ausführungen zur direkten Beklebung des Gummituchzylinders
  6. f) bei einem mehrschichtigen Aufbau durch geeignete Verbindungstechniken das Trennen der Schichten.
The structure obtainable by the method according to the invention enables:
  1. a) the absorption of shear forces in deeper layers of the structure (blanket + pad)
  2. b) the displacement of the material displacement in the Walk process away from the contact boundary blanket and pad into the pad inside
  3. c) by the absorption and distribution of reversible deformation work, the protection of rubber blanket (crush stability) and printing press
  4. d) by the absorption and damping of vibrations of the cylinder, the improvement of the printed image and protection of the printing press In one embodiment, it is additionally possible
  5. e) the self-adhesive versions for direct bonding of the blanket cylinder
  6. f) in a multilayer construction by suitable joining techniques, the separation of the layers.

Durch den einschichtigen oder mehrschichtigen Aufbau wird die Deformation des Gummituchs und Unterlage (auch Packung genannt) so verändert, dass die Berührungszone Druckplattenzylinder - Gummituchzylinder und/oder Gegendruckzylinder - Gummituchzylinder relativ flach ausfällt und sich nicht konkav um den eindrückenden Zylinder schmiegt.Due to the single-layer or multi-layer structure, the deformation of the blanket and pad (also called package) is changed so that the contact zone printing plate cylinder - blanket cylinder and / or impression cylinder - blanket cylinder fails relatively flat and does not nestle concavely around the impressing cylinder.

Je nach Aufbau des Gummituches kann es zu unterschiedlichen Anforderungen an die erfindungsgemäß montierte Unterlage kommen.Depending on the structure of the blanket, there may be different demands on the inventively mounted pad.

Die Dicke liegt bevorzugt zwischen 0,2 und 1,5 mm.

  • Figur 1 zeigt einen typischen Aufbau in einem Druckwerk mit einem Gegendruckzylinder mit umführendem Bedruckstoff 1, einem Gummituchzylinder mit Gummituch 2 und einem Druckplattenzylinder mit Druckplatte 3. Die Walkzonen sind mit 4 gekennzeichnet.
  • Figur 2 zeigt die erfindungsgemäß montierten Unterlagen in eingebauter Form, dabei bezeichnet
    • 1 einen Gummituchzylinder
    • 5 einen Adhäsivklebstoff
    • 3 die erfindungsgemäße flexible Unterlage
    • 4 das Gummituch.
  • Figur 3a zeigt eine Ausführungsform mit einem einschichtigen Aufbau 1.
The thickness is preferably between 0.2 and 1.5 mm.
  • FIG. 1 shows a typical structure in a printing unit with an impression cylinder with umführendem substrate 1, a blanket cylinder with blanket 2 and a printing plate cylinder with pressure plate 3. The Walk zones are marked with 4.
  • FIG. 2 shows the inventively mounted documents in built-in form, thereby designated
    • 1 a blanket cylinder
    • 5 an adhesive adhesive
    • 3 the flexible pad according to the invention
    • 4 the blanket.
  • FIG. 3a shows an embodiment with a single-layer structure. 1

Figur 3b zeigt einen mehrschichtigen Aufbau mit einem Adhäsivkleber 2 und zwei flexiblen Schichten 1 und 3. FIG. 3b shows a multilayer construction with an adhesive adhesive 2 and two flexible layers 1 and 3.

Figur 3c zeigt einen Aufbau mit einem mehrschichtigen drucksensiblen Adhäsivkleber 2 und einer erfindungsgemäßen flexiblen Schicht 1. Figure 3c shows a construction with a multilayer pressure-sensitive adhesive adhesive 2 and a flexible layer 1 according to the invention.

Figur 3d zeigt einen Aufbau mit einem Adhäsivkleber 2, einem vulkanisierten Silikongel als flexiblen Reaktivklebstoff 5 gefolgt von mehreren flexiblen Schichten, alle zusammen mit 4 gekennzeichnet. 3d figure Figure 4 shows a construction with an adhesive adhesive 2, a vulcanized silicone gel as a flexible reactive adhesive 5 followed by a plurality of flexible layers, all labeled 4.

Diese stehen in Kontakt mit dem Druckplattenzylinder 2. Es zeigt sich deutlich, dass durch die erfindungsgemäße flexible Unterlage die Walkarbeit erheblich verringert werden kann.These are in contact with the printing plate cylinder 2. It is clear that the flexing work can be significantly reduced by the flexible pad according to the invention.

Durch die geeignete Auswahl flexibler Schichten können kostengünstig einschichtige bis mehrschichtigen Aufbauten realisiert werden, die als Unterlagefolie unter dem Gummituch dem Walkprozess entgegenwirken und sogar dämpfende Eigenschaften aufweisen.By suitable selection of flexible layers, single-layer to multi-layer structures can be realized cost-effectively, which counteract the milling process under the rubber blanket as underlay film and even have damping properties.

Die Eigenschaften besonders geeigneter Materialien sind in der nachfolgenden Tabelle gezeigt. Werkstoff Rückprall-Elastizität (DIN 53512 März 1981) Druckverformungsresttest (DIN 53517 April 1987) Härteprüfung Shore A (DIN 53505 Juni 1987, nach 15 s) Polyurethan 35 - 75 % 15 - 30% 45 - 85 Polyvinylchlorid 30 - 60 % 15 - 30% 30 - 90 Silikon* 50 - 80 % 15 - 30% 25 - 60 Nitril-Butyl-Gummi 35 - 60 % 15 - 40% 50 - 90 Alle Messungen bei 25°C, Luftdruck 1013 hPa, relative Luftfeuchte 55%, Konditionierung 16 Stunden Probenkörperherstellung:
- DIN 53505: 6mm, 3 x 2mm geschichtet
- DIN 53517: Probekörper I, Gleitmittel Seifenlösung, Dauer 24 Stunden
DIN 53512: keine Vorbehandlung, 3 Proben, Dicke 12,5 mm, Flachfolie, Klemmhalterung
* auch Silikongele The properties of particularly suitable materials are shown in the table below. material Rebound elasticity (DIN 53512, March 1981) Compression set test (DIN 53517 April 1987) Hardness test Shore A (DIN 53505 June 1987, after 15 s) polyurethane 35 - 75% 15 - 30% 45 - 85 polyvinylchloride 30 - 60% 15 - 30% 30 - 90 Silicone* 50 - 80% 15 - 30% 25 - 60 Nitrile-butyl rubber 35 - 60% 15 - 40% 50 - 90 All measurements at 25 ° C, air pressure 1013 hPa, relative humidity 55%, conditioning 16 hours Sample body preparation:
- DIN 53505: 6mm, 3 x 2mm layered
- DIN 53517: test specimen I, lubricant soap solution, duration 24 hours
DIN 53512: no pretreatment, 3 samples, thickness 12.5 mm, flat foil, clamping bracket
* also silicone gels

Die Erfindung wird durch die nachfolgenden Beispiele näher erläutert:The invention is explained in more detail by the following examples:

Beispiel 1: EinschichtigExample 1: Single-Layered

Polyurethanfolie Epurex Walopur® 4100D Dicke 0,500 mm (ohne selbstklebende Ausrüstung).Polyurethane film Epurex Walopur ® 4100D Thickness 0,500 mm (without self-adhesive finish).

Beispiel 2: ZweischichtigExample 2: two-layered

Polyurethanfolie Epurex Walopur® 4100D Dicke 0,500 mm Selbstklebende Ausrüstung durch Lamination mit ATP S-4708 EA P080 1635 Enddicke 0,580 mm.Polyurethane film Epurex Walopur ® 4100D Thickness 0,500 mm Self-adhesive finish by lamination with ATP S-4708 EA P080 1635 Final thickness 0,580 mm.

Herstellung: Die Polyurethanfolie wird mittels Folienkaschierung unter einem Anpressdruck so mit dem Transferkleber laminiert, dass keine Luftblasen eingeschlossen werden. Die Kaschiergeschwindigkeit, der Kaschierdruck und die Kaschiertemperatur werden diesbezüglich angepasst.Production: The polyurethane film is laminated by means of foil lamination under a contact pressure so with the transfer adhesive that no air bubbles are trapped. The laminating speed, the laminating pressure and the laminating temperature are adjusted accordingly.

Beispiel 3: VierschichtigExample 3: four-layered

Polyurethanfolie Epurex Walopur® 4100D Dicke 0,600 mm Verklebung: Firma Stahl, NC 120 ASL/ NC 111B, Schichtdicke 0,030 mm Polyurethanfolie Gerband / Swis-chem® 4220 Dicke 0,350 mm Selbstklebende Ausrüstung durch Lamination mit ATP S-4708 EA P080 1635 Enddicke 0,980mm bis 1,000 mm.Polyurethane film Epurex Walopur ® 4100D Thickness 0,600 mm Bonding: Company Steel, NC 120 ASL / NC 111B, layer thickness 0,030 mm Polyurethane film Gerband / Swis-chem ® 4220 Thickness 0,350 mm Self-adhesive equipment by lamination with ATP S-4708 EA P080 1635 Final thickness 0,980mm up to 1,000 mm.

Herstellung: Die Polyurethanfolie 4100D wird mit dem Klebstoffsystem dünn bestrichen (z.B. mit einem Drahtrakel oder einer Rolle). Das im Klebstoff befindliche Lösungsmittel wird abgelüftet. In einem Laminationsverfahren wird die Polyurethanfolie 4220 aufgebracht. Nach einer Trocknungszeit von 10 Tagen, erfolgt die Lamination mit dem Transferkleber. Das Laminat aus Polyurethanfolien wird mittels Folienkaschierung unter einem Anpressdruck so mit dem Transferkleber laminiert, dass keine Luftblasen eingeschlossen werden. Der Transferkleber wird auf die Polyurethanschicht 4200 aufgebracht.Preparation: The 4100D polyurethane film is coated thinly with the adhesive system (e.g., with a wire bar or roller). The solvent in the adhesive is vented. In a lamination process, the polyurethane film 4220 is applied. After a drying time of 10 days, the lamination is done with the transfer adhesive. The laminate of polyurethane films is laminated by means of foil lamination under a contact pressure with the transfer adhesive so that no air bubbles are trapped. The transfer adhesive is applied to the polyurethane layer 4200.

Claims (5)

  1. A process for mounting a blanket in offset printing, comprising the steps of:
    - mounting a substrate comprising at least one flexible layer, said flexible layer having a modulus of elasticity within a range of from 1 MPa to 1000 MPa, said substrate having no layer with a modulus of elasticity of > 1500 MPa, on a blanket cylinder;
    - mounting a blanket on the substrate.
  2. The process according to claim 1, characterized in that said substrate is attached to said blanket cylinder by means of an adhesive.
  3. The process according to claim 1 or 2, characterized in that said flexible layer is made of polyurethane, polyvinyl chloride, silicone, silicone gels, nitrile-butyl rubber, ethylene-propylene rubber, polyethylene, polypropylene.
  4. The process according to at least one of claims 1 to 3, characterized in that said substrate has several flexible layers.
  5. The process according to claim 4, characterized in that said several flexible layers are made of different polymers.
EP07122754.0A 2007-12-10 2007-12-10 Method for mounting a rubber blanket in offset printing Not-in-force EP2070716B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07122754.0A EP2070716B1 (en) 2007-12-10 2007-12-10 Method for mounting a rubber blanket in offset printing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07122754.0A EP2070716B1 (en) 2007-12-10 2007-12-10 Method for mounting a rubber blanket in offset printing

Publications (2)

Publication Number Publication Date
EP2070716A1 EP2070716A1 (en) 2009-06-17
EP2070716B1 true EP2070716B1 (en) 2013-08-21

Family

ID=39307914

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07122754.0A Not-in-force EP2070716B1 (en) 2007-12-10 2007-12-10 Method for mounting a rubber blanket in offset printing

Country Status (1)

Country Link
EP (1) EP2070716B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4429892A1 (en) * 2021-11-12 2024-09-18 Roberto Levi Acobas Coating for a blanket cylinder of a printing machine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5476712A (en) * 1994-05-31 1995-12-19 Avery Dennison Corporation Flexographic plate mounting tape
EP0845515A2 (en) * 1996-11-30 1998-06-03 Beiersdorf Aktiengesellschaft Adhesive tape

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2748421B1 (en) 1996-05-10 1998-06-12 Rollin Sa REVERSIBLE PRINTING BLANKET
JPH10101866A (en) * 1996-08-06 1998-04-21 Idemitsu Petrochem Co Ltd Flexible polypropylene-based resin composition, film or sheet and surface protecting film or sheet comprising the same
DE19940429A1 (en) 1999-08-26 2001-03-08 Contitech Elastomer Besch Gmbh Blanket sleeve for an offset printing machine
EP1591270A1 (en) 2004-04-26 2005-11-02 CHIORINO S.p.A. Compressible element for varnishing plates or for printing blankets for offset printing and flexography

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5476712A (en) * 1994-05-31 1995-12-19 Avery Dennison Corporation Flexographic plate mounting tape
EP0845515A2 (en) * 1996-11-30 1998-06-03 Beiersdorf Aktiengesellschaft Adhesive tape

Also Published As

Publication number Publication date
EP2070716A1 (en) 2009-06-17

Similar Documents

Publication Publication Date Title
EP2421713B1 (en) Multiple-layer flat structure in the form of a printing blanket or a printing plate for flexographic and letterpress printing
RU94027280A (en) Printing offset cloth, compressed fabric, composite article, processes of manufacture of printing offset cloth, compressed fabric, process of improvement of at least one of physical properties of composite material
EP2502753B1 (en) Polymer printed blanket
EP2070717B1 (en) Method for mounting a rubber blanket in offset printing
DE10241800B4 (en) Multilayer sleeve for printing machines and method for its production
EP2070716B1 (en) Method for mounting a rubber blanket in offset printing
EP1078777A2 (en) Rubber blanket sleeve for offset printing
EP1361073A2 (en) Sleeve with deformable, hard outer layer,and flexographic printing body using such a sleeve
DE2817522B2 (en) Printing blanket
EP1230095B1 (en) Substructure material for a printing device and a printing cloth in order to print non-even materials
DE602004001574T2 (en) Pad for a blanket or. Printing cylinders in printing presses
DE10117409B4 (en) Blanket for use on printing cylinders, especially for offset printing presses
EP1459904B1 (en) Rubber blanket for offset printing
EP2508350B1 (en) Metal-back printing blanket
EP2361784B1 (en) Printing blanket
DE10228242B4 (en) Printing unit of a rotary printing press working in waterless offset printing with two printing points
EP1227937B1 (en) Printer and method for printing corrugated cardboard
WO2017008922A1 (en) Ink transfer medium
DE102007013611A1 (en) Blanket with a non-stretchable carrier layer
DE202011110044U1 (en) Metal-backed blanket
DE6938307U (en) FASTENING FOR FLEXIBLE THIN PRESSURE PLATES.
EP1147915A1 (en) Printing blanket for use on a printing cylinder particularly for offset printing presses
DE102015112206A1 (en) Mounting tape and use of mounting tape for the printing industry
JP3405654B2 (en) Blanket for offset printing
EP1506859A3 (en) Roller for an inking or damping unit of a rotary offset press and production method thereof

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK RS

17P Request for examination filed

Effective date: 20091126

17Q First examination report despatched

Effective date: 20091223

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 627820

Country of ref document: AT

Kind code of ref document: T

Effective date: 20130915

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502007012184

Country of ref document: DE

Effective date: 20131017

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20130821

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131223

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130821

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130731

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130821

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131221

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130821

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131122

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130821

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130821

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130821

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130821

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130821

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130821

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130821

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130821

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130821

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130821

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130821

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

BERE Be: lapsed

Owner name: FOLEX COATING G.M.B.H.

Effective date: 20131231

26N No opposition filed

Effective date: 20140522

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130821

Ref country code: LU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131210

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502007012184

Country of ref document: DE

Effective date: 20140522

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20131231

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20131231

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20131210

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20131231

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 627820

Country of ref document: AT

Kind code of ref document: T

Effective date: 20131210

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20131210

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130821

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130821

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20071210

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130821

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 9

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 10

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20201229

Year of fee payment: 14

Ref country code: FR

Payment date: 20201230

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20201223

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20201224

Year of fee payment: 14

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502007012184

Country of ref document: DE

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20211210

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20211210

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220701

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20211231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20211210