EP2121327B1 - Cold film application and simultaneous embossing - Google Patents

Abstract

Production of a printed image on a sheet of paper comprises feeding sheets of a printed material to a sheet-fed printing machine, subjecting the sheets to a working step to prepare or directly produce a changed surface structure, applying adhesive to the changed surface of the sheets, applying a foil image to the pre-treated sheet and post-treating. An independent claim is also included for a device for carrying out the above process. Preferred Features: A base coating is applied using lacquer modules before applying the foil image. A medium having an adhering force greater than the adhesive is used as the base coating.

Description

The invention relates to a method and a device for transferring imaging layers from a carrier foil to printed sheets according to the preamble of claims 1 and 9.

It is known to produce metallic layers on printed sheets by means of a film transfer process. So is in the EP 0 569 520 B1 a printing material and a printing apparatus using this material are described. In this case, a sheet-processing machine is shown, which has a feeder and a boom, between which two units printing units and a film transfer module are arranged. In at least one of the printing units, an adhesive pattern is applied by means of the planographic printing process. This adhesive pattern is applied in a cold printing process and has a specific imaging subject. In the printing unit following the film transfer module with a counter-pressure cylinder and a transfer cylinder, a film guide is provided. This is designed in such a way that a film strip or a transfer film is guided through the transfer nip of the film transfer module between the impression cylinder and the transfer cylinder by a film supply roll. The film strip is rewound on the exit side after leaving the film transfer module. The transfer film has a carrier layer on which imaging layers such as metallic layers, for example of aluminum, can be applied. When printing sheets are transported through the printing unit, each sheet is given an adhesive pattern. Thereafter, the sheet is passed through the film transfer module, wherein by means of the transfer cylinder, the resting on the impression cylinder sheet is brought into contact with the film material. In this case, the downwardly lying metallic layer enters into a close connection with the areas provided with adhesive on the printed sheet. After further transporting the printing sheet, the metallic layer adheres only in the area provided with the adhesive pattern at. The carrier film is thus removed from the metallic layer in the region of the adhesive pattern. The used in this way transfer film is wound up again. The print sheet is laid out in the coated state.

It is known to use such film transfer modules, for example in printing units of printing presses. A disadvantage of the known devices is that they are not flexible and that the consumption of transfer film is expensive. Furthermore, the generation of embossing effects is difficult.

To produce printed products with a structured surface, it has hitherto been necessary to use an expensive starting material. The starting point according to customary methods is that structured surfaces are fed to a sheet-fed printing machine on a correspondingly treated sheet material or as roll material by means of a roll-sheet feeder. These can then be coated in the inline process by means of cold foil application and printed within the same machine and, if necessary, coated or finished or checked by further methods, marked, e.g. be processed by inkjet printing and finally also.

From the DE 20 2006 005 296 U1 a device for stamping foil printing is known. The device is designed to perform a film transfer to an adhesive layer in a sheet-fed press. Therein, at least two paint modules between a feeder and a boom are arranged to form a coating machine. The paint modules are assigned a film transfer module.

From the WO 2005/102 700 A1 Another device for stamping foil printing is known. The device is designed to perform a film transfer to an adhesive layer in a sheet-fed press. To form a film transfer module with a coating unit for film transfer, a printing unit or a coating module is used here. In this printing or coating unit For example, a forme cylinder is used to form a press roll for film transfer.

From the EP 1 700 692 A2 a production method for an embossing device in a sheet-fed press and a device for its implementation is known. The device is designed to perform a film transfer to an adhesive layer in a sheet-fed press. The production process is used for the surface conformal coating of printed sheets with a transfer film layer. For such a coating process, a processing operation may be downstream.

From the WO 2005/049 322 A1 For example, a method and apparatus for combination pressure is known. After that, embossing is carried out in a printing machine after a cold foil application, so that a previously coated printed sheet, without any intermediate storage being necessary, can additionally be provided with a structuring of its surface.

Finally, it is still out of the DE 10 2005 043 940 A1 an embossing device with film logistics in a sheet-fed press known. In a sheet-fed printing machine, in this case, a coating module is assigned to devices for handling film rolls.

The object of the invention is therefore to provide methods and a device by means of which the transfer of an imaging layer, e.g. a metallization can be done safely, economically and accurately, with embossing effects can be easily produced.

The solution to this problem results in a method according to claim 1 and an apparatus according to claim 9.

Structured surfaces can also be produced by the process according to the invention in the inline process.

Within a printing machine, a foil coating can be applied by cold foil application and the sheet subsequently printed and optionally further refined or processed. The patterning, which may be regularly or arbitrarily distributed, may be accomplished both by a mechanical process, such as by a mechanical method. a blind embossing, or by printing processes before the film transfer. Here, a pictorial precoating with inflatable colors, a thermo-relief printing, a screen printing with paint or varnish, a flocking be applied with foamable Beflockungsstoff. Furthermore, an inflatable printing material can be used. Subsequently, a film transfer is carried out in the inline process and the substrate is subsequently printed inline in the same printing press and, if necessary, finished.

The structuring of the printing material can be carried out partially or partially or completely over the sheet or paper format. Furthermore, only recessed areas of the printing material can be structured in all desired area or even under the film coating.

In mechanical relief formations by means of e.g. Embossing process, appropriate paint or printing modules are upstream of the applicator for the adhesive. When applying the structure-forming substances corresponding printing devices such as inkjet printing units, printing or coating units possibly with drying equipment, the applicator be provided upstream.

The printing press is to be equipped and operated with suitable printing aids. Here, e.g. Compressible blankets used so that the substrate during film transfer and printing is not deformed and thus the surface structure can be damaged.

When using structure-forming substances, the formation of the printing material can take place with respect to its structure or relief before or after the film transfer. For this purpose, if necessary, a heat input or radiation, for example by means of a UV lamp is required.

The adhesive application before the film transfer, can be done in one or more printing units.

The advantage of this combination of methods is on the one hand generally justified in the inline process, since less material handling and thus possibilities for damage are given. On the other hand, a higher added value of the finished sheet is achieved by the integrated feel or optics even with standardized materials. Furthermore, it is very advantageous that the protection of applied structures e.g. for braille characters from detachment or damage is achieved. Finally, the processing is extremely economical feasible even with pure finishing measures.

The pre-structuring of substrates can also be done by calender units or creasing devices or the like in a roll Bogeri feeder, which cooperates inline with a sheetfed offset press, in which one or more film transfer modules are integrated, so that an active confluence takes place in the process chain.

In the process chain, a steel-stamping process can also be integrated to enable a securities refinement. This can be done before or after the film transfer and in the area or outside of the film coating, if the substrate is only partially coated with film.

Figur 1

eine grundsätzliche Darstellung einer Druckmaschine mit einer Fo- lientransfereinrichtung und

Figur 2 bis 4

Konfigurationen erfindungsgemäßer Druckmaschinen.

In the following the invention is illustrated in more detail with reference to figures.
Showing:

FIG. 1

a basic representation of a printing machine with a Fulientransfereinrichtung and

FIGS. 2 to 4

Configurations of printing presses according to the invention.

In FIG. 1 is a sheet-processing machine, here a printing press, shown, which consists of at least two printing units.

A sheet to be coated is provided in a first step in the applicator 1 with an imaging adhesive pattern. For this purpose, a printing unit of an offset printing press with inking and dampening units 11, a printing plate on a plate cylinder 12, a blanket or blanket cylinder 13 and a counter-pressure cylinder 4 can be used. Likewise, applicators can be used in the form of flexographic printing or painting units. The adhesive can also be applied in two applicators 1, to improve its effect on different substrates.
In the second step, a transfer film 5 is guided under pressure through a transfer nip 6 together with the printing sheet. A film transfer module 2 used for this purpose may be a printing unit, a paint module, a base unit or another type of processing station of a sheet-fed offset printing press.
The transfer nip 6 in the film transfer module 2 is formed by a transfer cylinder 3 and an impression cylinder 4. The transfer cylinder 3 may correspond to a blanket or form cylinder of a known offset printing unit or paint module of a sheetfed offset printing press. Within the film transfer module 2, a web guide for transfer films 5 is shown.

A film supply roll 8 is assigned to the film transfer module 2 on the page of sheet feeding. The film supply roll 8 has a rotary drive 7. The rotary drive 7 is required for the continuous controlled feeding of the transfer film 5 to the film transfer module 2 and is therefore controllable.
Furthermore, in the field of film feed and removal guide devices 14, such as deflection or tensioning rollers, pneumatically actuated conducting means, baffles o. Ä. Provided. Thus, the film web of the transfer film 5 can always be guided flat without distortions and held in the same voltage with respect to the transfer cylinder 3.

In this case, the transfer film 5 can be guided around the transfer cylinder 3, wherein the transfer film 5 can advantageously be fed in and out of the press nip 6 only from one side of the film transfer module 2 (see dashed representation). In a further embodiment, the transfer film 5 in the essentially tangentially past the transfer cylinder 3 or only in a small circumferential angle, looping toward the press nip 6, and are removed. For this purpose, the transfer film 5 is supplied from one side of the film transfer module 2 and discharged to the opposite side of the film transfer module 2. On the outlet side of the printing unit a Foüensammelrolle 9 is shown, by means of which used sheet material is wound up. Again, a rotary drive 7 is provided, which is controllable.

Furthermore, it is provided in the area of the adhesive application and the film transfer dryer 16 provided. Thus, e.g. by UV drying, the adhesive layer by means of a first dryer 16 (intermediate dryer I) are pre-dried, so that the wear layer of the transfer film 5 better adheres. Furthermore, the adhesive effect of the applied wear layer on the printed sheet can be improved by the action of a second dryer 16 (intermediate dryer II) by additionally accelerating the final drying of the adhesive.

For the transfer process of imaging e.g. Wear layer of the transfer sheet 5 on the printing sheet in the transfer nip 6 between the transfer cylinder 3 and the impression cylinder 4, the surface of the transfer cylinder 3 is provided with compressible, damping elements as press fabric 10.

As in Fig. 1 the cold foil application can also be embodied in an integrated film transfer module FA. Here, the film feeder is additionally integrated into the same printing unit, here the applicator 1, so that adhesive application and film transfer take place in two successive work columns on the same impression cylinder 4.

The application according to the invention of the cold foil transfer will be described below.

Structured surfaces can also be produced by the process according to the invention in the inline process. In a printing machine, a structured surface with film coating is to be produced in one process. A regular or arbitrarily distributed structuring can be done by a mechanical process or by printing techniques in one step before the film transfer.

The mechanical processes are well known as embossing processes. Here, an embossing station is arranged upstream of the film transfer module FA.
In mechanical relief formations by means of eg embossing process, corresponding paint or print modules are connected upstream of the applicator 1 for the adhesive.

For the application of printing technology, a pictorial precoating is used, in the inflatable colors, a thermo-relief printing, a screen printing with paint or varnish or a flocking with foamable flocking can be applied.
When applying the structure-forming substances appropriate printing devices such as lnkjet printing units, printing or coating units possibly with drying equipment, the applicator be provided upstream.

Furthermore, it is also possible to use a substrate which can be locally swelled by chemical or radiation action.

Depending on the type of pretreatment, a printing substrate pretreated in this way within the printing press can still be planar or already have a desired surface structure.

Subsequently, a film transfer is carried out in the inline process.

If the structure on the substrate is not yet formed, the structure can now be generated on the substrate by radiation or heat.

The printing material is printed inline and optionally finished after the film transfer and the possibly to be executed process for forming the surface structure in the same printing press.

The structuring of the printing material can be carried out partially or completely with respect to the sheet or paper format. Furthermore, distributed over the entire substrate recessed areas, both in the area and outside the film coating be structured.

The printing press must be equipped accordingly and operated with suitable printing aids. Compressible blankets are used, for example, so that the substrate is not deformed during film transfer and printing and thus the surface structure can be damaged.

When using structure-forming substances, the formation of the printing material can take place with respect to its structure or relief before or after the film transfer. For this purpose, if necessary, a heat input or radiation, e.g. required by means of a UV lamp.

For the mechanical pre-structuring of substrates, calendering or creasing devices or the like come into question. These may be integrated into a roll sheet feeder upstream of the press.
It is also possible to integrate a device according to the steel-piercing method in order to enable securities refinement.

In the printing machine and several film transfer modules can be integrated.

In the FIGS. 2 to 4 various possibilities of arranging the coating module 2 and the applicator 1 or the film transfer module FA in a printing machine to execute the described production method for structured substrates are shown schematically.

The printing presses shown can, in all configurations shown, if not already shown downstream of a feeder AN and film transfer modules FA or 1, 2 or printing units D upstream one or more paint modules L be provided to allow a pre-coating of printed sheets. In the arrangements shown, one or more paint modules L can be provided in front of a boom AU in order to apply one-layer or multi-layer transparent and thereby clear, glossy or colored cover layers.

At all positions where a film transfer is to be performed, the normal combination of applicator 1 and coating module 2 and, alternatively, an integrated film transfer module FA can be provided. When arranging a plurality of film transfer positions, the use of the integrated film transfer modules FA is particularly suitable.

FIG. 2 shows a basic configuration of the printing press according to the invention. A sheet feeder AN of the sheet-fed printing machine is first followed by a paint module L, then a preparation module P, then an applicator 1 and then a coating module 2. The coating module 2 is again followed by printing units D of the sheet-fed printing machine. A paint module L and a sheet delivery AU complete the configuration.

With such a printing press, a printing sheet can be precoated in the paint module L in order to improve its surface or consistency. In the preparation module, a mechanical structuring by embossing, eg blind embossing, or grooves can alternatively take place.
Furthermore, in the preparation module P, a printing-technical pretreatment to produce a structuring can take place, printing inks, flocking medium or thermo-relief medium then being applied. Offset printing, screen printing, flexographic printing, inkjet printing, transfer printing or the like may be considered as the printing method.

In combination with the paint module L, which can also be used as a flexographic printing unit, the structuring of the printing substrate can also be formed in the preparation module P. by applying a radiation or heat to the substrate.
Furthermore, an intumescent printing material can be treated there to form a structuring by structurally recording heat or radiation.

The treatment of the printing material can be continued if the film transfer has taken place. For this purpose, a drying device which is suitable for forming the structuring can be provided in front of the printing units after the coating module 2.
Finally, after the color prints, a protective coating can then be applied to protect the surface.

In FIG. 3 is the sheet feeder AN a printing unit D downstream. The printing unit D is followed by an integrated film transfer module FA. The foil transfer module FA is followed by a paint module L downstream. Subsequently, various printing units D, and a boom AU are provided.

In this configuration, a printing unit D is provided for pre-treatment for structuring. The pretreatment can also be done here mechanically or by printing means. The aftertreatment of the printing material for forming the structuring can then take place in the paint module L, which is connected downstream of the film transfer module FA.

In FIG. 4 an advanced version of a printing press is shown, which consists of two machine groups. The printing press again has the sheet feeder AN, to which a lacquer module L can be assigned, to which one or more printing units D are subsequently provided. Subsequent to the final printing unit D of the first machine group, a sheet turning device W is arranged.
The sheet turning device W is provided for that sheet-fed printing machine in the first group of machines can be turned over unilaterally printed or coated sheet, so that their previous unprinted Bottom side to the top, which can be subsequently printed, coated, heat treated or mechanically deformed.
In the configuration shown, a commissioning unit 1 and a coating module 2 adjoin the sheet turning device W. Thereafter, a plurality of additional printing units D and optionally also a paint module L are provided up to the sheet delivery AU.

With such a printing machine so each sheet can first coated from its back, printed one or two colors, then turned, then imagewise coated with a film layer and subsequently printed again in multiple colors, and optionally painted. An application example of this are greeting cards with jewelery inserts made of metal foil on the image page. The structuring or preparation for structuring takes place here in a paint module L, which is directly downstream of the sheet turning device W.

• Vor jedem Folientransfermodul FA bzw. jedem Auftragwerk 1 ist eine Vorbehandlungseinheit in Form eines Lackmoduls L, eines Druckwerkes D oder eines Präparationsmoduls P angeordnet.
• In einem zusätzlichen ersten Druckwerk / Lackmodul kann ein rauer oder poröser Bedruckstoff vorbeschichtet werden, um dessen Oberfläche und innere Struktur zu homogenisieren oder optisch zu vereinheitlichen. Ein Zwischentrockner kann nach der Beschichtung zum Einsatz kommen.
• In den genannten Vorbehandlungseinheiten wird eine mechanische oder drucktechnische Vorbehandlung des Bedruckstoffs zur Erzeugung oder Vorbereitung der gewünschten Strukturierung durchgeführt.
• In einem darauf folgenden ersten Druckwerk / Auftragwerk 1 wird Kleber aufgetragen. Der Kleberauftrag kann auch doppelt erfolgen, um eine ausreichende Kleberschicht zu erreichen. Im zweiten Druckwerk / Beschichtungsmodul 2 wird der Folientransfer durchgeführt.
• Nach dem Folientransfer kann zur Ausbildung oder Festigung der Strukturierung des Bedruckstoffes eine Nachbehandlung in einem separaten Lackmodul L oder Druckwerk D einem Präparationsmodul P durchgeführt werden
• Danach kann wieder gedruckt bzw. lackiert werden.
• Beim Folientransfer nach einer Bogenwendeeinrichtung W wird zunächst eine Seite des Bedruckstoffes beschichtet bzw. bedruckt. Nach der Bogenwendung erfolgen dann eine Vorbehandlung der Bogenrückseite zur Strukturierung und erst dann der Folientransfer. Darauf kann wieder gedruckt / lackiert werden.
• Nach dem Folientransfer kann wieder eine Nachbehandlung in einem separaten Modul durchgeführt werden
• Danach kann wieder gedruckt bzw. lackiert werden.
• Es besteht auch die Möglichkeit die Einrichtungen zur Vorbehandlung in Verbindung mit dem Bogenanleger AN anzuordnen. Hierbei kann der Bogenanleger als Rolle-Bogen-Anleger ausgebildet sein. Die Vorbehandlung kann dann schon beim Abziehen des Bedruckstoffes von der Bedruckstoffrolle und vor dem Bogenschnitt kontinuierlich erfolgen.
• Es besteht auch die Möglichkeit zwei oder mehr Einrichtungen für den Folientransfer in einer Druckmaschine anzuordnen. Diese können alternativ fest installiert oder versetzbar angeordnet sein.

The following configuration is possible on the machine:

• Before each film transfer module FA or each applicator 1, a pretreatment unit in the form of a paint module L, a printing unit D or a preparation module P is arranged.
• In an additional first printing unit / paint module, a rough or porous substrate can be precoated to homogenize or optically unify its surface and internal structure. An intermediate dryer can be used after the coating.
• In the abovementioned pretreatment units, a mechanical or printing-technical pretreatment of the printing substrate for producing or preparing the desired structuring is carried out.
• In a subsequent first printing unit / applicator 1 adhesive is applied. The application of adhesive can also be done twice in order to achieve a sufficient adhesive layer. In the second printing unit / coating module 2, the film transfer is performed.
• After the film transfer, an aftertreatment in a separate paint module L or printing unit D, a preparation module P, can be carried out to form or strengthen the structuring of the printing substrate
• Afterwards you can print or varnish again.
• When film transfer after a sheet turning device W, one side of the printing material is first coated or printed. After the application of the sheet, a pre-treatment of the back of the sheet for structuring and only then the film transfer takes place. It can be printed / varnished again.
• After the film transfer, after-treatment can be carried out again in a separate module
• Afterwards you can print or varnish again.
• It is also possible to arrange the facilities for pretreatment in connection with the sheet feeder AN. In this case, the sheet feeder can be designed as a roll-bow feeder. The pretreatment can then be carried out continuously even when the printing substrate is removed from the printing substrate roll and before the sheet cut.
• It is also possible to arrange two or more devices for the film transfer in a printing press. These may alternatively be permanently installed or displaced.

The configurations shown are given by way of example. In the context of the modularization of the film transfer modules, as has been described in detail above, the skilled person can easily find further applications.

Bezugszeichenfiste

1

commissioned

2

Foil transfer module

3

transfer cylinder

4

Impression cylinder

5

Transfer foil / foil web

6

transfer nip

7

roller drive

8th

Film supply roll

9

Foil composite role

10

Press covering

11

Inking / dampening unit

12

plate cylinder

13

Blanket cylinder

14

guide

15

Verschutzung

16

UV dryer

17

monitoring system

18

dancer roll

D

printing unit

W

turning device

AT

sheet feeder

AU

sheet delivery

FA

Integrated film transfer module

L

coating module

Claims (14)

1. A method for generating a print image on a print sheet subject to the inclusion of the transfer of imaging layers from a transfer foil (5), wherein in a foil transfer module arranged within a sheet-fed printing press at least by means of a form couple (1) an imaging coating of the print sheet with a glue is effected and by means of a coating module (2) the application of a foil image subject to the transfer of at least parts of the imaging layers from the transfer foil (5) onto the print sheet is effected, characterized in that the sheet-fed printing press is fed print sheets of a substrate substantially unstructured in its surface, in that the print sheets are subjected to an operation for the preparation or for the direct creation of a changed surface structure, in that the glue is applied onto the changed surface of the sheets and in that the foil image is applied to the pre-treated sheet and in that the print sheets prepared for the structuring and foil-coated if applicable are retreated, wherein before the application of the foil image a mechanically generated stamping is effected, in that the foil image is applied onto the pre-treated sheet, in that the print sheet pre-treated for stamping and foil-coated is retreated and in that the print sheet thereafter is printed with a single or multi-colour printing image by means of printing inks at least partially subject to the inclusion of the image regions of the foil image.
2. The method according to Claim 1, characterized in that prior to the application of the foil image a one or multi-layer flat basic coating of the print sheets takes place in one or a plurality of coating modules arranged upstream of the foil transfer module.
3. The method according to Claim 2, characterized in that for the single or multi-layered basic coating of the print sheet a medium is used whose adhesive force is matched relative to the glue or which is increased through the glue.
4. The method according to Claim 1 to 3, characterized in that the operation for the preparation comprises a pre-treatment through mechanical action in a rotative stamping method, wherein the pre-treatment is effected through blind stamping in a coating module (L) or in a printing couple (D) or through calendering in a calendering module or through a groove treatment in a coating module (L) or a printing couple (D) or through mechanical deformation in a stamping system in a reel-sheet feeder arranged upstream of the printing press.
5. The method according to Claim 1 to 3, characterized in that the pre-treatment is effected through the application of an image corresponding to the desired stamping structure of volume-changeable media such as blow-capable printing ink and in that the structural image is printed in offset print or flexographic print or intaglio print or screen print or in that the structural image is printed according to the thermo-relief method or in that the structural image is created through the application of a flock with a foamable flocking agent.
6. The method according to Claim 5, characterized in that for forming the structuring of the substrate the pre-coating is subjected to a heat treatment or to a radiation action, wherein the forming of the structuring of the substrate takes place before or/and after the foil transfer.
7. The method according to Claim 1 to 6, characterized in that for printing of the structured print sheet carrying the foil image a one or multi-colour print image is applied and thereafter for coating the print sheet with a one or multi-layer coating, a lacquer is applied over the whole or part of the surface.
8. The method according to Claim 1 to 7, characterized in that following the transfer of the foil image and/or after the application of printing inks and/or after the application of the one or multi-colour coating, drying takes place.
9. A device for carrying out the method according to Claim 1 with a foil transfer module for the transfer of imaging layers from a transfer foil (5) onto print sheets at least with one application couple (1) for an imaging coating of the print sheets with an adhesive and with a coating module (2) for the transfer of the imaging layers from the carrier foil to the print sheets in a transfer gap (6) between an impression cylinder (4) and a pressing roller (3), wherein the carrier foil with the coated side contacting the print sheet can be guided through the transfer gap (6) jointly with said print sheet and in the process the imaging layers are transferable in terms of image onto the print sheet, characterized in that in a sheet-fed printing press a unit for generating a mechanically created stamping is arranged upstream of the foil transfer module in such a manner that the application couple (1) applies the adhesive image and the coating module (2) the foil image onto the pre-treated substrate.
10. The device according to Claim 9, characterized in that in front of the foil transfer module a coating module (L) or printing couple (D) or preparation module (P) for the mechanical creation of a stamping or of a structure in the substrate is arranged.
11. The device according to Claim 9, characterized in that in front of the foil transfer module a coating module (L) or printing couple (D) for creating a structural image of volume-changeable media is arranged on the substrate and in that in front of or after the foil transfer module a post-treatment unit for forming the structuring is arranged on or in the surface of the substrate and in that the post-treatment unit comprises a heat generator, a dryer or a radiation generator.
12. The device according to Claim 9 to 11, characterized in that the sheet-processing machine is a printing press with a plurality of printing couples (D) for creating a colour imprint and in that the foil transfer module is arranged upstream, between or downstream of the printing couples (D).
13. The device according to Claim 9 to 12, characterized in that in front of and/or after the foil transfer module and/or after the printing couples (D) and/or after the coating modules (L), dryers are arranged.
14. The device according to Claim 9 to 13, characterized in that for the supply of print sheets to the printing press a reel-sheet feeder is provided, which is equipped for processing foil substrates and/or recycling substrates and/or paper and other cardboard, wherein in conjunction with the reel-sheet feeder a device for the pre-treatment of the substrate for generating a surface structure is provided.

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