EP3878652A1 - Method for producing printed sheets from a web - Google Patents

Method for producing printed sheets from a web Download PDF

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Publication number
EP3878652A1
EP3878652A1 EP20161784.2A EP20161784A EP3878652A1 EP 3878652 A1 EP3878652 A1 EP 3878652A1 EP 20161784 A EP20161784 A EP 20161784A EP 3878652 A1 EP3878652 A1 EP 3878652A1
Authority
EP
European Patent Office
Prior art keywords
web
film
fluid
layer
transfer layer
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.)
Granted
Application number
EP20161784.2A
Other languages
German (de)
French (fr)
Other versions
EP3878652B1 (en
Inventor
Martin Schmitt-Lewen
Thomas Steigleder
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.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger Druckmaschinen AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Priority to EP20161784.2A priority Critical patent/EP3878652B1/en
Priority to CN202110028741.0A priority patent/CN113370686A/en
Publication of EP3878652A1 publication Critical patent/EP3878652A1/en
Application granted granted Critical
Publication of EP3878652B1 publication Critical patent/EP3878652B1/en
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Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F16/00—Transfer printing apparatus
    • B41F16/0006—Transfer printing apparatus for printing from an inked or preprinted foil or band
    • B41F16/002—Presses of the rotary type
    • B41F16/0033—Presses of the rotary type with means for applying print under pressure only, e.g. using pressure sensitive adhesive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M1/00—Inking and printing with a printer's forme
    • B41M1/06—Lithographic printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F16/00—Transfer printing apparatus
    • B41F16/0006—Transfer printing apparatus for printing from an inked or preprinted foil or band
    • B41F16/0013—Transfer printing apparatus for printing from an inked or preprinted foil or band combined with other printing presses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F19/00—Apparatus or machines for carrying out printing operations combined with other operations
    • B41F19/002—Apparatus or machines for carrying out printing operations combined with other operations with means for applying specific material other than ink
    • B41F19/004—Apparatus or machines for carrying out printing operations combined with other operations with means for applying specific material other than ink with means for applying adhesive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F19/00—Apparatus or machines for carrying out printing operations combined with other operations
    • B41F19/02—Apparatus or machines for carrying out printing operations combined with other operations with embossing
    • B41F19/06—Printing and embossing between a negative and a positive forme after inking and wiping the negative forme; Printing from an ink band treated with colour or "gold"
    • B41F19/062—Presses of the rotary type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M7/00—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M7/00—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock
    • B41M7/0081—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock using electromagnetic radiation or waves, e.g. ultraviolet radiation, electron beams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F11/00—Rotary presses or machines having forme cylinders carrying a plurality of printing surfaces, or for performing letterpress, lithographic, or intaglio processes selectively or in combination
    • B41F11/02—Rotary presses or machines having forme cylinders carrying a plurality of printing surfaces, or for performing letterpress, lithographic, or intaglio processes selectively or in combination for securities
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M1/00—Inking and printing with a printer's forme
    • B41M1/24—Inking and printing with a printer's forme combined with embossing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/0011—Pre-treatment or treatment during printing of the recording material, e.g. heating, irradiating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
    • B44C1/16—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like
    • B44C1/165—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like for decalcomanias; sheet material therefor
    • B44C1/17—Dry transfer
    • B44C1/1733—Decalcomanias applied under pressure only, e.g. provided with a pressure sensitive adhesive

Definitions

  • the present invention relates to a method for producing printed sheets from a web.
  • DE 27 48 675 B1 describes a method for producing laminated sheets in which cover sheets are laminated onto a carrier web and then the laminated web is separated into individual laminated sheets.
  • the cover sheets are provided with a print image.
  • the object of the invention is to provide a further method for producing printed sheets from a web.
  • This object is achieved by a method for producing printed sheets from a web, characterized in that in a first step the web or a film is coated with a fluid, that then in a second step the web is treated by means of the film and that then in a third step the web is cut into sheets and then in a fourth step the sheets are printed.
  • One advantage of the method according to the invention is that it is suitable not only for printing material made of paper or cardboard, but also for printing material made of plastic.
  • the web from which the printed sheets are made can therefore be a paper web, cardboard web or plastic web.
  • the fluid can be a radiation curable fluid, e.g. B. a fluid curable by UV radiation.
  • the first step, second step, third step and fourth step can be done inline.
  • the fluid in the first step, can be applied to the web as an adhesive for a cold foil transfer process, in the second step a transfer layer of the foil can be detached from a carrier layer of the foil and transferred to the adhesive on the web and, before the third step, the adhesive between the transferred transfer layer and the web are cured by UV irradiation to firmly bond the transfer layer to the web.
  • the fluid in the first step, can be applied as an adhesive for a cold foil transfer process to a transfer layer of the foil, in the second step the transfer layer with the adhesive can be detached from a carrier layer of the foil and transferred to the web and can be carried out before the third Step the adhesive between the transferred transfer layer and the web is hardened by UV radiation in order to firmly bond the transfer layer to the web.
  • the fluid can be applied to the web as an embossing layer for a cast-and-cure process in the first step; Before the third step, the embossed layer on the web can be hardened by UV radiation in order to permanently solidify the surface structure.
  • the sheets can be printed using an offset printing process.
  • cutting marks can be applied to the web, which are formed by a glued-on cold foil transfer layer or by cold foil adhesive without cold foil or by an embossed cast-and-cure surface structure or by a cast-and-cure fluid without embossing will.
  • the invention also includes a device for carrying out the method according to the invention or one of the further developments, the device being characterized in that a printing material unwind station, a fluid coating station, a film transport station, a cross-cutting station and a sheet-fed printing station in are arranged one behind the other in the order mentioned.
  • One advantage of the device according to the invention is its good suitability for carrying out the method inline.
  • Figure 1 shows a flow chart of the production method, in which a first step 100, second step 200, third step 300 and fourth step 400 take place one after the other in the order mentioned. Further steps can be carried out between steps 100 to 400, e.g. B. with a corona treatment of web 1.
  • the web 1 or the film 24 is coated with a fluid. If the fluid is an adhesive for a cold foil transfer process, the fluid can be applied to web 1 or foil 24 or both. If the fluid is to serve as an embossing compound into which a surface structure is to be embossed in a cast-and-cure process, the fluid is applied to the web 1.
  • the web 1 is treated by means of the film 24.
  • this treatment can consist in detaching a transfer layer from the foil 24 and sticking the transfer layer onto the web 1 and in the cast-and-cure process in the already mentioned embossing of the surface structure using the foil 24 as an embossing tool.
  • the web 1 is cut into sheets 9.
  • the format of the sheets 9 is constant during a print job and can vary from print job to print job.
  • the sheets 9 are printed, which can be done by flexographic printing, screen printing, digital printing (e.g. inkjet) or preferably offset printing (planographic).
  • the printing material forming the web 1 and later the sheets 9 can be paper, cardboard or plastic.
  • Figure 2 shows a machine arrangement with which the manufacturing method can be carried out in an inline process.
  • a printing material unwind station 11 the web 1 is unwound from a roll and transported in the printing material transport direction BT.
  • the first step 100 is carried out in a fluid coating station 2.
  • the web 1 is coated over the entire area or part of the area (e.g. spot coating) with the required fluid.
  • the fluid coating station 2 can be designed as a cassette and can be exchanged for another.
  • one fluid coating station 2 can be specially designed for the application of a high-viscosity fluid and the other fluid-coating station 2 for the application of a low-viscosity fluid.
  • the illustrated fluid coating station 2 comprises a chamber doctor blade 12, anilox roller 13, application roller 14 and counter pressure roller 15.
  • the second step 200 is carried out in a film transport station 3 and the film 24 is moved in the film transport direction FT from an unwinding roller 16 to a winding roller 17.
  • a contact zone 4 the web 1 and the film 24 running synchronously with it are pressed together.
  • the transfer layer is transferred and with the alternative cast-and-cure process, the micro-relief is embossed.
  • the film 24 and the web 1 run together through a press nip which is formed between a pressure roller 18 and a counter-pressure roller 19.
  • the printing material is processed in the film transport station 3 in the form of the web 1 and not in the form of sheets is advantageous with regard to the contact between the film 24 and the printing material.
  • the counterpressure roller 19 does not require any grippers, which, in contrast, would be required to hold sheets and would impair said contact.
  • the fluid film between the foil 24 and the web 1 is hardened with a curing device 5 by irradiation, e.g. B. with UV radiation, cured, wherein the fluid polymerizes.
  • irradiation e.g. B. with UV radiation
  • the radiation from the curing device 5 passes through the film 24, which for this purpose can be transparent or UV-permeable.
  • the third step 300 is carried out in a cross-cutting station 6.
  • the cross-cutting station 6 comprises a web store 20 with a meandering course of the web 1, guide or transport rollers 21, 22 and a knife roller 23 as a cutting tool.
  • the knife roller 23 cuts the web 1 provided with the glued-on transfer layer or the embossed embossing layer into sheets 9 of the same size, each of which then carries the transfer layer or embossing layer.
  • the sheets 9 can be coated with the transfer layer or embossing layer over the entire area or only on a partial area.
  • the cross cutting station 6 can be equipped with a register cutting system.
  • this has a cutting mark sensor, and the cut takes place according to a cutting mark which is previously printed or applied to the web.
  • the cutting mark can be formed by cold foil glued onto the web, cold foil adhesive alone (without cold foil), embossed cast-and-cure elements (embossing layer) or cast-and-cure fluid alone (embossing fluid without embossing).
  • the register cutting system has a camera that is high-resolution and works in the transmitted light method, the cutting mark being detected in the transmitted light or a watermark functioning as a cutting mark.
  • the knife roller 23 is decelerated or accelerated during its revolution in order to hit the cutting mark with sufficient accuracy.
  • the fourth step 400 is carried out in a sheet printing station 10 to which the cross cutting station 6 transfers the sheets 9.
  • the sheet-fed printing station 10 can comprise one or preferably several printing units, e.g. B. for multi-color offset printing.
  • the sheet printing station 10 can print the print image next to or on the layer produced with the fluid on the sheet 9.
  • the print image can be placed next to a hologram formed by the embossing layer.
  • the pressure is applied to the side of the transfer layer which was exposed shortly beforehand when the transfer layer was detached from the film 24 and which was previously "sealed", so to speak, by the carrier layer of the film 24. Due to the rapid sequence of steps in the inline process, there is no noticeable aging of the layer side to be printed between the second step 200 and the fourth step 400, which could otherwise impair its printability.
  • corona devices for treating the web 1 is indicated by arrow symbols (reference symbols “7” and “8”) in the event that the web 1 is made of plastic.
  • the corona device 7 is arranged in front of the fluid coating station 2 in the printing material transport direction BT and the corona device 8 is arranged between the contact zone 4 and the knife roller 23.

Abstract

Bei einem Verfahren zur Herstellung von bedruckten Bogen (9) aus einer Bahn (1) wird in einem ersten Schritt die Bahn (1) oder eine Folie (24) mit einem Fluid beschichtet, danach in einem zweiten Schritt mittels der Folie (24) die Bahn (1) behandelt, danach in einem dritten Schritt die Bahn (1) in Bogen (9) zerschnitten und werden danach in einem vierten Schritt die Bogen (9) bedruckt.In a method for producing printed sheets (9) from a web (1), the web (1) or a film (24) is coated with a fluid in a first step, followed by the film (24) in a second step The web (1) is treated, then in a third step the web (1) is cut into sheets (9) and the sheets (9) are then printed in a fourth step.

Description

Vorliegende Erfindung betrifft ein Verfahren zur Herstellung von bedruckten Bogen aus einer Bahn.The present invention relates to a method for producing printed sheets from a web.

In DE 27 48 675 B1 ist ein Verfahren zum Herstellen von kaschierten Bögen beschrieben, bei dem auf eine Trägerbahn Deckbögen aufkaschiert werden und anschließend die kaschierte Bahn in einzelne kaschierte Bögen getrennt wird. Die Deckbögen sind mit einem Druckbild versehen.In DE 27 48 675 B1 describes a method for producing laminated sheets in which cover sheets are laminated onto a carrier web and then the laminated web is separated into individual laminated sheets. The cover sheets are provided with a print image.

Aufgabe der Erfindung ist, ein weiteres Verfahren zur Herstellung von bedruckten Bogen aus einer Bahn anzugeben.The object of the invention is to provide a further method for producing printed sheets from a web.

Diese Aufgabe wird gelöst durch ein Verfahren zur Herstellung von bedruckten Bogen aus einer Bahn, dadurch gekennzeichnet, dass in einem ersten Schritt die Bahn oder eine Folie mit einem Fluid beschichtet wird, dass danach in einem zweiten Schritt mittels der Folie die Bahn behandelt wird und dass danach in einem dritten Schritt die Bahn in Bogen zerschnitten wird und dass danach in einem vierten Schritt die Bogen bedruckt werden.This object is achieved by a method for producing printed sheets from a web, characterized in that in a first step the web or a film is coated with a fluid, that then in a second step the web is treated by means of the film and that then in a third step the web is cut into sheets and then in a fourth step the sheets are printed.

Ein Vorteil des erfindungsgemäßen Verfahrens ist, dass dieses nicht nur für Bedruckstoff aus Papier oder Karton, sondern auch für Bedruckstoff aus Kunststoff geeignet ist. Die Bahn, aus der die bedruckten Bogen hergestellt werden, kann also eine Papierbahn, Kartonbahn oder Kunststoffbahn sein.One advantage of the method according to the invention is that it is suitable not only for printing material made of paper or cardboard, but also for printing material made of plastic. The web from which the printed sheets are made can therefore be a paper web, cardboard web or plastic web.

Ein Zusatzvorteil ist, dass das Fluid ein durch Bestrahlung härtbares Fluid sein kann, z. B. ein durch UV-Bestrahlung härtbares Fluid.An additional benefit is that the fluid can be a radiation curable fluid, e.g. B. a fluid curable by UV radiation.

Es sind verschiedene Weiterbildungen des erfindungsgemäßen Verfahrens möglich.Various developments of the method according to the invention are possible.

Der erste Schritt, zweite Schritt, dritte Schritt und vierte Schritt können inline durchgeführt werden.The first step, second step, third step and fourth step can be done inline.

Es kann in dem ersten Schritt das Fluid als Kleber für ein Kaltfolientransferverfahren auf die Bahn aufgebracht werden, in dem zweiten Schritt eine Transferschicht der Folie von einer Trägerschicht der Folie abgelöst und auf den Kleber auf der Bahn übertragen werden und vor dem dritten Schritt der Kleber zwischen der übertragenen Transferschicht und der Bahn durch UV-Bestrahlung gehärtet werden, um die Transferschicht mit der Bahn fest zu verbinden.In the first step, the fluid can be applied to the web as an adhesive for a cold foil transfer process, in the second step a transfer layer of the foil can be detached from a carrier layer of the foil and transferred to the adhesive on the web and, before the third step, the adhesive between the transferred transfer layer and the web are cured by UV irradiation to firmly bond the transfer layer to the web.

Es kann in dem ersten Schritt das Fluid als Kleber für ein Kaltfolien-Transferverfahren auf eine Transferschicht der Folie aufgebracht werden, kann in dem zweiten Schritt die Transferschicht mit dem Kleber von einer Trägerschicht der Folie abgelöst und auf die Bahn übertragen werden und kann vor dem dritten Schritt der Kleber zwischen der übertragenen Transferschicht und der Bahn durch UV-Bestrahlung gehärtet werden um die Transferschicht mit der Bahn fest zu verbinden.In the first step, the fluid can be applied as an adhesive for a cold foil transfer process to a transfer layer of the foil, in the second step the transfer layer with the adhesive can be detached from a carrier layer of the foil and transferred to the web and can be carried out before the third Step the adhesive between the transferred transfer layer and the web is hardened by UV radiation in order to firmly bond the transfer layer to the web.

Bei einer weiteren Weiterbildung kann in dem ersten Schritt das Fluid als Prägeschicht für ein Cast-And-Cure-Verfahren auf die Bahn aufgebracht werden, kann in dem zweiten Schritt die Folie als Prägefolie verwendet und mittels der Prägefolie eine Oberflächenstruktur in die Prägeschicht hineingeprägt werden und kann vor dem dritten Schritt die Prägeschicht auf der Bahn durch UV-Bestrahlung gehärtet werden, um die Oberflächenstruktur dauerhaft zu verfestigen.In a further development, the fluid can be applied to the web as an embossing layer for a cast-and-cure process in the first step; Before the third step, the embossed layer on the web can be hardened by UV radiation in order to permanently solidify the surface structure.

In dem vierten Schritt können die Bogen in einem Offsetdruckverfahren bedruckt werden.In the fourth step, the sheets can be printed using an offset printing process.

Vor dem dritten Schritt können auf die Bahn Schneidmarken aufgebracht werden, die durch eine aufgeklebte Kaltfolien-Transferschicht oder durch Kaltfolien-Kleber ohne Kaltfolie oder durch eine geprägte Cast-and-Cure-Oberflächenstruktur oder durch ein Cast-and-Cure-Fluid ohne Prägung gebildet werden.Before the third step, cutting marks can be applied to the web, which are formed by a glued-on cold foil transfer layer or by cold foil adhesive without cold foil or by an embossed cast-and-cure surface structure or by a cast-and-cure fluid without embossing will.

Zur Erfindung gehört auch eine Vorrichtung zur Durchführung des erfindungsgemäßen oder einer der Weiterbildung entsprechenden Verfahrens, wobei die Vorrichtung dadurch gekennzeichnet ist, das eine Bedruckstoffabroll-Station, eine Fluidbeschichtungs-Station, einen Folientransport-Station, eine Querschneid-Station und eine Bogendruck-Station in der genannten Reihenfolge hintereinander angeordnet sind.The invention also includes a device for carrying out the method according to the invention or one of the further developments, the device being characterized in that a printing material unwind station, a fluid coating station, a film transport station, a cross-cutting station and a sheet-fed printing station in are arranged one behind the other in the order mentioned.

Ein Vorteil der erfindungsgemäßen Vorrichtung ist deren gute Eignung zur inline erfolgenden Durchführung des Verfahrens.One advantage of the device according to the invention is its good suitability for carrying out the method inline.

Weitere konstruktiv und funktionell vorteilhafte Weiterbildungen ergeben sich aus der nachfolgenden Beschreibung von Ausführungsbespielen und der zugehörigen Zeichnung, worin zeigt:

Figur 1
ein Schema des Ablaufs der Schritte des Verfahrens und
Figur 2
eine Vorrichtung zur inline erfolgenden Durchführung des Verfahrens.
Further structurally and functionally advantageous developments emerge from the following description of exemplary embodiments and the associated drawing, which shows:
Figure 1
a scheme of the flow of the steps of the method and
Figure 2
a device for carrying out the process inline.

Figur 1 zeigt einen Ablaufplan des Herstellungsverfahrens, bei welchem ein erster Schritt 100, zweiter Schritt 200, dritter Schritt 300 und vierter Schritt 400 in der genannten Reihenfolge nacheinander erfolgen. Zwischen den Schritten 100 bis 400 können weitere Schritte erfolgen, z. B. mit einer Corona-Behandlung der Bahn 1. Figure 1 shows a flow chart of the production method, in which a first step 100, second step 200, third step 300 and fourth step 400 take place one after the other in the order mentioned. Further steps can be carried out between steps 100 to 400, e.g. B. with a corona treatment of web 1.

Im ersten Schritt 100 wird die Bahn 1 oder die Folie 24 mit einem Fluid beschichtet. Wenn das Fluid ein Kleber für ein Kaltfolien-Transferverfahren ist, kann das Fluid auf die Bahn 1 oder Folie 24 oder beide aufgebracht werden. Wenn das Fluid als Prägemasse dienen soll, in die in einem Cast-And-Cure-Verfahren eine Oberflächenstruktur hineingeprägt werden soll, wird das Fluid auf die Bahn 1 aufgetragen.In the first step 100, the web 1 or the film 24 is coated with a fluid. If the fluid is an adhesive for a cold foil transfer process, the fluid can be applied to web 1 or foil 24 or both. If the fluid is to serve as an embossing compound into which a surface structure is to be embossed in a cast-and-cure process, the fluid is applied to the web 1.

Im zweiten Schritt 200 wird mittels der Folie 24 die Bahn 1 behandelt. Diese Behandlung kann beim Kaltfolien-Transferverfahren in dem Ablösen einer Transferschicht von der Folie 24 und dem Aufkleben der Transferschicht auf die Bahn 1 und beim Cast-And-Cure-Verfahren im bereits erwähnten Prägen der Oberflächenstruktur mittels der Folie 24 als Prägewerkzeug bestehen.In the second step 200, the web 1 is treated by means of the film 24. In the cold foil transfer process, this treatment can consist in detaching a transfer layer from the foil 24 and sticking the transfer layer onto the web 1 and in the cast-and-cure process in the already mentioned embossing of the surface structure using the foil 24 as an embossing tool.

Im dritten Schritt 300 wird die Bahn 1 in Bogen 9 zerschnitten. Das Format der Bogen 9 ist während eines Druckauftrags konstant und kann von Druckauftrag zu Druckauftrag variieren.In the third step 300, the web 1 is cut into sheets 9. The format of the sheets 9 is constant during a print job and can vary from print job to print job.

Im vierten Schritte 400 werden die Bogen 9 bedruckt, was per Flexodruck, Siebdruck, Digitaldruck (z. B. Inkjet) oder vorzugsweise Offsetdruck (planografisch) erfolgen kann. Der die Bahn 1 und später die Bogen 9 bildende Bedruckstoff kann Papier, Karton oder Kunststoff sein.In the fourth step 400, the sheets 9 are printed, which can be done by flexographic printing, screen printing, digital printing (e.g. inkjet) or preferably offset printing (planographic). The printing material forming the web 1 and later the sheets 9 can be paper, cardboard or plastic.

Figur 2 zeigt eine Maschinenanordnung, mit der das Herstellungsverfahren in einem Inline-Prozess durchgeführt werden kann. In einer Bedruckstoffabroll-Station 11 wird die Bahn 1 von einer Rolle abgewickelt und in Bedruckstoff-Transportrichtung BT transportiert. In einer Fluidbeschichtungs-Station 2 wird der erste Schritt 100 durchgeführt. Hierbei wird die Bahn 1 vollflächig oder teilflächig (z. B. Spotlackierung) mit dem erforderlichen Fluid beschichtet. Figure 2 shows a machine arrangement with which the manufacturing method can be carried out in an inline process. In a printing material unwind station 11, the web 1 is unwound from a roll and transported in the printing material transport direction BT. The first step 100 is carried out in a fluid coating station 2. In this case, the web 1 is coated over the entire area or part of the area (e.g. spot coating) with the required fluid.

Die Fluidbeschichtungs-Station 2 kann als Kassette ausgebildet und gegen eine andere austauschbar sein. Beispielsweise kann die eine Fluidbeschichtungs-Station 2 für das Auftragen eines hochviskosen Fluids und die andere Fluidbeschichtungs-Station 2 das Auftragen eines niedrigviskosen Fluids speziell ausgebildet sein. Die dargestellte Fluidbeschichtungs-Station 2 umfasst eine Kammerrakel 12, Rasterwalze 13, Auftragswalze 14 und Gegendruckwalze 15.The fluid coating station 2 can be designed as a cassette and can be exchanged for another. For example, one fluid coating station 2 can be specially designed for the application of a high-viscosity fluid and the other fluid-coating station 2 for the application of a low-viscosity fluid. The illustrated fluid coating station 2 comprises a chamber doctor blade 12, anilox roller 13, application roller 14 and counter pressure roller 15.

In einer Folientransport-Station 3 wird der zweite Schritt 200 durchgeführt und dabei die Folie 24 in Folientransportrichtung FT von einer Abwickelrolle 16 zu einer Aufwickelrolle 17 bewegt. In einer Kontaktzone 4 werden die Bahn 1 und die mit ihr synchron laufende Folie 24 zusammengepresst. Hierbei erfolgt beim Kaltfolien-Transferverfahren die Übertragung der Transferschicht und beim alternativen Cast-And-Cure-Verfahren das Prägen des Mikroreliefs. Die Folie 24 und die Bahn 1 laufen zusammen durch einen Pressspalt, der von einer Anpresswalze 18 und einer Gegendruckwalze 19 dazwischen gebildet wird.The second step 200 is carried out in a film transport station 3 and the film 24 is moved in the film transport direction FT from an unwinding roller 16 to a winding roller 17. In a contact zone 4, the web 1 and the film 24 running synchronously with it are pressed together. With the cold foil transfer process, the transfer layer is transferred and with the alternative cast-and-cure process, the micro-relief is embossed. The film 24 and the web 1 run together through a press nip which is formed between a pressure roller 18 and a counter-pressure roller 19.

Dass der Bedruckstoff in der Folientransport-Station 3 in Form der Bahn 1 und nicht in Form von Bogen verarbeitet wird, ist hinsichtlich des Kontakts zwischen Folie 24 und Bedruckstoff vorteilhaft. Für den Transport der Bahn 1 benötigt die Gegendruckwalze 19 keine Greifer, welche im Gegensatz dazu zum Halten von Bogen erforderlich wären und besagten Kontakt beeinträchtigen würden.The fact that the printing material is processed in the film transport station 3 in the form of the web 1 and not in the form of sheets is advantageous with regard to the contact between the film 24 and the printing material. For the transport of the web 1, the counterpressure roller 19 does not require any grippers, which, in contrast, would be required to hold sheets and would impair said contact.

Innerhalb der Kontaktzone 4 wird der Fluidfilm zwischen der Folie 24 und Bahn 1 mit einer Härtungseinrichtung 5 durch Bestrahlung, z. B. mit UV-Strahlung, gehärtet, wobei das Fluid polymerisiert. Die Strahlung der Härtungseinrichtung 5 geht hierbei durch die Folie 24 hindurch, welche dazu transparent oder UV-durchlässig sein kann.Within the contact zone 4, the fluid film between the foil 24 and the web 1 is hardened with a curing device 5 by irradiation, e.g. B. with UV radiation, cured, wherein the fluid polymerizes. The radiation from the curing device 5 passes through the film 24, which for this purpose can be transparent or UV-permeable.

In einer Querschneid-Station 6 wird der dritte Schritt 300 durchgeführt. Die Querschneid-Station 6 umfasst einen Bahnspeicher 20 mit mäander-förmigem Verlauf der Bahn 1, Führungs- oder Transportrollen 21, 22 und eine Messerwalze 23 als Schneidwerkzeug. Die Messerwalze 23 zerschneidet die mit der aufgeklebten Transferschicht oder der geprägten Prägeschicht versehene Bahn 1 in gleichgroße Bogen 9, von denen dann jeder die Transferschicht oder Prägeschicht trägt. Die Bogen 9 können vollflächig oder nur auf einer Teilfläche mit der Transferschicht oder Prägeschicht beschichtet sein.The third step 300 is carried out in a cross-cutting station 6. The cross-cutting station 6 comprises a web store 20 with a meandering course of the web 1, guide or transport rollers 21, 22 and a knife roller 23 as a cutting tool. The knife roller 23 cuts the web 1 provided with the glued-on transfer layer or the embossed embossing layer into sheets 9 of the same size, each of which then carries the transfer layer or embossing layer. The sheets 9 can be coated with the transfer layer or embossing layer over the entire area or only on a partial area.

Die Querschneid-Station 6 kann mit einem Registerschnittsystem ausgestattet sein. Bei einer Variante des Registerschnittsystems weist dieses einen Schneidmarkensensor auf, und der Schnitt erfolgt nach einer Schneidmarke, welche vorher auf die Bahn gedruckt oder aufgebracht wird. Die Schneidmarke kann durch auf die Bahn aufgeklebte Kaltfolie, Kaltfolienkleber allein (ohne Kaltfolie), geprägte Cast-and-Cure-Elemente (Prägeschicht) oder Cast-and-Cure-Fluid allein (Prägefluid ohne Prägung) gebildet werden. Bei einer alternativen Variante weist das Registerschnittsystem eine Kamera auf, die hochauflösend ist und im Durchlichtverfahren arbeitet, wobei die Schneidmarke im Durchlicht detektiert wird oder ein Wasserzeichen als Schneidmarke fungiert. Bei beiden Varianten wird die Messerwalze 23 während ihres Umlaufs verzögert oder beschleunigt, um die Schneidmarke hinreichend genau zu treffen.The cross cutting station 6 can be equipped with a register cutting system. In a variant of the register cutting system, this has a cutting mark sensor, and the cut takes place according to a cutting mark which is previously printed or applied to the web. The cutting mark can be formed by cold foil glued onto the web, cold foil adhesive alone (without cold foil), embossed cast-and-cure elements (embossing layer) or cast-and-cure fluid alone (embossing fluid without embossing). In an alternative variant, the register cutting system has a camera that is high-resolution and works in the transmitted light method, the cutting mark being detected in the transmitted light or a watermark functioning as a cutting mark. In both variants, the knife roller 23 is decelerated or accelerated during its revolution in order to hit the cutting mark with sufficient accuracy.

Der vierte Schritt 400 wird in einer Bogendruck-Station 10 durchgeführt, an welche die Querschneid-Station 6 die Bogen 9 übergibt. Die Bogendruck-Station 10 kann ein oder vorzugsweise mehrere Druckwerke umfassen, z. B. für mehrfarbigen Offsetdruck. Die Bogendruck-Station 10 kann das Druckbild neben oder auf die mit dem Fluid auf dem Bogen 9 erzeugte Schicht drucken. Beispielsweise kann das Druckbild neben ein durch die Prägeschicht gebildetes Hologramm gesetzt werden. Alternativ ist es möglich, das Druckbild auf die Transferschicht zu setzen, z. B. wenn diese eine silberne Aluminiumschicht ist, die mit gelber Druckfarbe überdruckt wird, um einen Goldeffekt zu erzeugen.The fourth step 400 is carried out in a sheet printing station 10 to which the cross cutting station 6 transfers the sheets 9. The sheet-fed printing station 10 can comprise one or preferably several printing units, e.g. B. for multi-color offset printing. The sheet printing station 10 can print the print image next to or on the layer produced with the fluid on the sheet 9. For example, the print image can be placed next to a hologram formed by the embossing layer. Alternatively, it is possible to place the print image on the transfer layer, e.g. B. if this is a silver aluminum layer overprinted with yellow ink to create a gold effect.

Hierbei ist es vorteilhaft, dass der Druck auf die beim Ablösen der Transferschicht von der Folie 24 kurz vorher freigelegte Seite der Transferschicht erfolgt, welche vorher durch die Trägerschicht der Folie 24 sozusagen "versiegelt" war. Aufgrund der schnellen Abfolge der Schritte beim Inline-Prozess erfolgt zwischen dem zweiten Schritt 200 und dem vierten Schritt 400 keine spürbare Alterung der zu bedruckenden Schichtseite, wodurch sonst deren Bedruckbarkeit beeinträchtigt werden könnte.It is advantageous here that the pressure is applied to the side of the transfer layer which was exposed shortly beforehand when the transfer layer was detached from the film 24 and which was previously "sealed", so to speak, by the carrier layer of the film 24. Due to the rapid sequence of steps in the inline process, there is no noticeable aging of the layer side to be printed between the second step 200 and the fourth step 400, which could otherwise impair its printability.

Mit Pfeilsymbolen (Bezugszeichen "7" und "8") ist die Anordnung von Corona-Einrichtungen zur Behandlung der Bahn 1 angedeutet für den Fall, dass die Bahn 1 aus Kunststoff besteht. Die Corona-Einrichtung 7 ist in Bedruckstoff-Transportrichtung BT vor der Fluidbeschichtungs-Station 2 angeordnet und die Corona-Einrichtung 8 zwischen der Kontaktzone 4 und der Messerwalze 23.The arrangement of corona devices for treating the web 1 is indicated by arrow symbols (reference symbols “7” and “8”) in the event that the web 1 is made of plastic. The corona device 7 is arranged in front of the fluid coating station 2 in the printing material transport direction BT and the corona device 8 is arranged between the contact zone 4 and the knife roller 23.

BezugszeichenlisteList of reference symbols

11
Bahntrain
22
Fluidbeschichtungs-StationFluid coating station
33rd
Folientransport-StationFoil transport station
44th
KontaktzoneContact zone
55
HärtungseinrichtungHardening device
66th
Querschneid-StationCross cutting station
77th
Corona-EinrichtungCorona facility
88th
Corona-EinrichtungCorona facility
99
Bogenarc
1010
Bogendruck-StationSheet-fed printing station
1111
Bedruckstoffabroll-StationPrinting material unwind station
1212th
KammerrakelChamber doctor blade
1313th
RasterwalzeAnilox roller
1414th
AuftragswalzeApplicator roller
1515th
GegendruckwalzeCounter pressure roller
1616
AbwickelrolleUnwinding roll
1717th
AufwickelrolleTake-up roll
1818th
AnpresswalzePressure roller
1919th
GegendruckwalzeCounter pressure roller
2020th
BahnspeicherWeb storage
2121
TransportrolleTransport roller
2222nd
TransportrolleTransport roller
2323
MesserwalzeKnife roller
2424
Foliefoil
100100
erster Schrittfirst step
200200
zweiter Schrittsecond step
300300
dritter SchrittThird step
400400
vierter Schrittfourth step
BTBT
Bedruckstoff-TransportrichtungPrinting material transport direction
FTFT
Folien-TransportrichtungFoil transport direction

Claims (8)

Verfahren zur Herstellung von bedruckten Bogen (9) aus einer Bahn (1), dadurch gekennzeichnet, dass in einem ersten Schritt (100) die Bahn (1) oder eine Folie (24) mit einem Fluid beschichtet wird, dass danach in einem zweiten Schritt (200) mittels der Folie (24) die Bahn (1) behandelt wird, dass danach in einem dritten Schritt (300) die Bahn (1) in Bogen (9) zerschnitten wird und dass danach in einem vierten Schritt (400) die Bogen (9) bedruckt werden. Method for producing printed sheets (9) from a web (1), characterized, that in a first step (100) the web (1) or a film (24) is coated with a fluid, that then in a second step (200) the web (1) is treated by means of the film (24), that then in a third step (300) the web (1) is cut into sheets (9) and that then in a fourth step (400) the sheets (9) are printed. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass der erste, zweite, dritte und vierte Schritt (100, 200, 300, 400) inline durchgeführt werden. Method according to claim 1, characterized, that the first, second, third and fourth steps (100, 200, 300, 400) are carried out inline. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass in dem ersten Schritt (100) das Fluid als Kleber für ein Kaltfolien-Transferverfahren auf die Bahn (1) aufgebracht wird, dass in dem zweiten Schritt (200) eine Transferschicht der Folie (24) von einer Trägerschicht der Folie (24) abgelöst und auf den Kleber auf der Bahn (1) übertragen wird und dass vor dem dritten Schritt (300) der Kleber zwischen der übertragenen Transferschicht und der Bahn (1) durch UV-Bestrahlung gehärtet wird, um die Transferschicht mit der Bahn (1) fest zu verbinden. Method according to claim 1 or 2, characterized, that in the first step (100) the fluid is applied to the web (1) as an adhesive for a cold foil transfer process, that in the second step (200) a transfer layer of the film (24) is detached from a carrier layer of the film (24) and transferred to the adhesive on the web (1) and that before the third step (300) the adhesive between the transferred transfer layer and the web (1) is hardened by UV radiation in order to firmly bond the transfer layer to the web (1). Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass in dem ersten Schritt (100) das Fluid als Kleber für ein Kaltfolien-Transferverfahren auf eine Transferschicht der Folie (24) aufgebracht wird, dass in dem zweiten Schritt (200) die Transferschicht mit dem Kleber von einer Trägerschicht der Folie (24) abgelöst und auf die Bahn (1) übertragen wird und dass vor dem dritten Schritt (300) der Kleber zwischen der übertragenen Transferschicht und der Bahn (1) durch UV-Bestrahlung gehärtet wird, um die Transferschicht mit der Bahn (1) fest zu verbinden. Method according to claim 1 or 2, characterized, that in the first step (100) the fluid is applied as an adhesive for a cold foil transfer process to a transfer layer of the foil (24), that in the second step (200) the transfer layer with the adhesive is detached from a carrier layer of the film (24) and transferred to the web (1) and that before the third step (300) the adhesive between the transferred transfer layer and the web ( 1) is cured by UV irradiation in order to firmly bond the transfer layer to the web (1). Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass in dem ersten Schritt (100) das Fluid als Prägeschicht für ein Cast-and-Cure-Verfahren auf die Bahn (1) aufgebracht wird, dass in dem zweiten Schritt (200) die Folie (24) als Prägefolie verwendet wird und mittels der Prägefolie eine Oberflächenstruktur in die Prägeschicht hinein geprägt wird und dass vor dem dritten Schritt (300) die Prägeschicht auf der Bahn (1) durch UV-Bestrahlung gehärtet wird, um die Oberflächenstruktur dauerhaft zu verfestigen. Method according to claim 1 or 2, characterized, that in the first step (100) the fluid is applied to the web (1) as an embossing layer for a cast-and-cure process, that in the second step (200) the film (24) is used as an embossing film and a surface structure is embossed into the embossing layer by means of the embossing film, and that before the third step (300), the embossed layer on the web (1) is hardened by UV radiation in order to permanently solidify the surface structure. Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass in dem vierten Schritt (400) die Bogen (9) in einem Offsetdruckverfahren bedruckt werden. Method according to one of Claims 1 to 5, characterized, that in the fourth step (400) the sheets (9) are printed in an offset printing process. Verfahren nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass vor dem dritten Schritt (300) auf die Bahn (1) Schneidmarken aufgebracht werden, die durch eine aufgeklebte Kaltfolien-Transferschicht oder durch Kaltfolien-Kleber ohne Kaltfolie oder durch eine geprägte Cast-and-Cure-Oberflächenstruktur oder durch ein Cast-and-Cure-Fluid ohne Prägung gebildet werden. Method according to one of Claims 1 to 6, characterized, that before the third step (300) cutting marks are applied to the web (1), which are provided by a glued-on cold foil transfer layer or by cold foil adhesive without cold foil or by an embossed cast-and-cure surface structure or by a cast-and- Cure fluid can be formed without embossing. Vorrichtung zur Durchführung des Verfahrens nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet,
dass eine Bedruckstoffabroll-Station (11), eine Fluidbeschichtungs-Station (2), eine Folientransport-Station (3), eine Querschneid-Station (6) und eine Bogendruck-Station (10) in der genannten Reihenfolge hintereinander angeordnet sind.Device for performing the method according to one of Claims 1 to 7, characterized in that
that a printing material unwind station (11), a fluid coating station (2), a film transport station (3), a cross cutting station (6) and a sheet printing station (10) are arranged one behind the other in the order mentioned.
EP20161784.2A 2020-03-09 2020-03-09 Method for producing printed sheets from a web Active EP3878652B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP20161784.2A EP3878652B1 (en) 2020-03-09 2020-03-09 Method for producing printed sheets from a web
CN202110028741.0A CN113370686A (en) 2020-03-09 2021-01-11 Method for producing printed sheets from a web

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20161784.2A EP3878652B1 (en) 2020-03-09 2020-03-09 Method for producing printed sheets from a web

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Cited By (1)

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DE102021132121A1 (en) 2021-12-07 2023-06-07 Koenig & Bauer Ag Machine and method for treating and/or processing web-shaped substrate

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CH120824A (en) * 1925-07-28 1927-06-16 Albert Schnellpressen Process for the production of prints of different colors on rotary machines and equipment for carrying out this process.
DE2748675B1 (en) 1977-10-29 1978-06-22 Doerries Gmbh Method and device for the production of laminated arches
DE102007061980A1 (en) * 2007-12-21 2009-06-25 Giesecke & Devrient Gmbh Method for creating a microstructure
EP2441583A2 (en) * 2010-10-12 2012-04-18 Giesecke & Devrient GmbH Printing substrate laminate for cards with multicolour print, card comprising said laminate and corresponding manufacturing methods
DE202013104546U1 (en) * 2013-10-08 2013-10-21 Bai Sha Technology Corp. Printed product in the form of a roll paper with a simultaneously pre-printed gold-plating and a frosting effect or ice-flower effect realized in the same printing process
US10022939B1 (en) * 2015-02-25 2018-07-17 TMI Acquisition, Inc. Cold foil temporary tattoo and process for making the same

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH120824A (en) * 1925-07-28 1927-06-16 Albert Schnellpressen Process for the production of prints of different colors on rotary machines and equipment for carrying out this process.
DE2748675B1 (en) 1977-10-29 1978-06-22 Doerries Gmbh Method and device for the production of laminated arches
DE102007061980A1 (en) * 2007-12-21 2009-06-25 Giesecke & Devrient Gmbh Method for creating a microstructure
EP2441583A2 (en) * 2010-10-12 2012-04-18 Giesecke & Devrient GmbH Printing substrate laminate for cards with multicolour print, card comprising said laminate and corresponding manufacturing methods
DE202013104546U1 (en) * 2013-10-08 2013-10-21 Bai Sha Technology Corp. Printed product in the form of a roll paper with a simultaneously pre-printed gold-plating and a frosting effect or ice-flower effect realized in the same printing process
US10022939B1 (en) * 2015-02-25 2018-07-17 TMI Acquisition, Inc. Cold foil temporary tattoo and process for making the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021132121A1 (en) 2021-12-07 2023-06-07 Koenig & Bauer Ag Machine and method for treating and/or processing web-shaped substrate
WO2023104361A1 (en) 2021-12-07 2023-06-15 Koenig & Bauer Ag Device for providing curved substrate sections and machine and method for processing a web-type substrate

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