EP1846242B1 - Film guide for an embossing device - Google Patents

Abstract

A device for transferring an image-forming layer from a transfer film to a printing sheet, including an applicator unit for applying a coating of glue in the form of an image to the printing sheet; and a coating unit including an impression cylinder for guiding the printed sheet with the coating of glue facing away from the impression cylinder, and a pressure roller for guiding the transfer film with the image-forming layer facing away from the pressure roller. The impression cylinder and the pressure roller form a transfer gap therebetween so that the transfer film and the printing sheet are pressed against each other when guided through the transfer gap so that the image-forming layer remains adhered to the printing sheet in the area of the coating of glue and is lifted off from the transfer film after leaving the transfer gap. A process is also disclosed.

Description

The invention relates to a device for transferring imaging layers from a carrier film to printing sheet according to the preamble of patent claim 1.

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 two units printing units and a coating unit 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 coating unit with a counter-pressure cylinder and a press roller a film guide is provided. This is designed in such a way that a film strip or a transfer film is passed through the transfer nip of the coating unit between the impression cylinder and the press roll from a film supply roll. The foil strip is rewound on the outlet side after leaving the coating unit. The transfer film has a carrier layer on which imaging layers such as metallic layers, for example of aluminum, can be applied. Between the metallic layer and the carrier film, a separating layer is provided, which ensures that the metallic layer can be removed from the carrier layer.

When printing sheets are transported through the printing unit, each sheet is given an adhesive pattern. Thereafter, the sheet is passed through the coating unit, being brought by means of the press roller on the impression cylinder resting sheet with the film material in combination. In this case, the downwardly lying metallic layer enters into a close connection with the areas provided with adhesive on the printed sheet. To the further transport of the printed sheet adheres to the metallic layer only in the area provided with the adhesive pattern. The transfer 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.

From the EP 0 578 706 B1 are known a film printing method and a film transfer machine.
Within an arrangement of a transfer and printing unit, the film transformation machine has a printing unit in which a film web is guided around a smoothing pressure roller with respect to a counter-roller. The film web are assigned to guide tension rollers and intermediate rollers to perform the film web from a supply roll to a printed base and be able to discharge from there to a collecting role.

Furthermore, from the publication " Prindor: New Foil Stamping Technology - Hot or Cold? ", Deutscher Drucker, No. 14-15, 1996, page g15 , an offset printing machine with a built-in Follentransfereinrichtung known. There, a film web is unwound, passed through a printing unit in the five-cylinder system and then rewound as residual film after metal foil has been transferred from the carrier material of the film on sheet. In two other printing units can be applied to the sheet a pressing pressure to strengthen the film and continue the sheet can be printed.

Finally, out of the DE 103 51 868 A1 a sheet-fed printing machine is known, are arranged in the film guide devices in special coating plants, which is said about the nature of the film guide nothing.

It is known to use such coating units, for example in printing units of printing presses. A disadvantage of the known devices is that they are not flexible and that the supply of the transfer film is complicated and difficult to handle.

The object of the invention is therefore to provide a device by means of which the transfer of an imaging layer, e.g. a metallization layer on a sheet can be done safely, economically and accurately, the device should be easy to handle.

The solution of this problem results in a method according to the features of claim 1.

Advantageously, a feed device is used to guide the transfer film, in which the transfer film is guided during feeding to the transfer nip by a modular control system.

An associated device for feeding the transfer film advantageously has a guide device in the manner of a cassette module, by means of which the supply to the transfer nip and the removal from the transfer nip are made possible in a simple manner.

The device can also be used in an advantageous manner in order to achieve an improvement in the utilization of the film in that the transfer film is divided into one or more partial film webs of lesser width. In combination with the above-mentioned method, it is thus also possible to use different types of film side by side.

To ensure the efficiency of the coating process can be provided to control the film feed such that the transfer film is then stopped when no transmission of the imaging or metallization takes place.
Advantageously, a control of the transfer film can be carried out such that, when passing through a cylinder channel receiving the grippers of the sheet-guiding impression cylinder, the film feed is stopped, wherein the press roll then passes in a sliding manner under the transfer film.

Advantageously, it is also possible to provide several coating units behind one another within a sheet-processing machine. In this way, the application of different imaging coatings or metallization layers within a subject can take place one after the other. In this case, it is possible to transmit the imaging layers next to one another using a single adhesive pattern with all the image pattern elements. It is also possible to provide a first adhesive pattern in a first coating unit with a first image-forming coating or metallization layer and, in the following, superimpose another, the first enclosing adhesive pattern and to provide it with a different imaging coating or metallization layer.

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

Figur 1

eine grundsätzliche Darstellung einer Druckmaschine mit einer Folientransfereinrichtung,

Figur 2

einer Einrichtung zur Führung von Transferfolie an einer Presswalze,

Figur 3

einer Einrichtung zur Zuführung von Transferfolie in detaillierter Darstellung und

Figuren 4 und 5

Varianten einer Einrichtung zur Abführung von Transferfolie in detaillierter Darstellung.

Showing:

FIG. 1

a basic representation of a printing press with a film transfer device,

FIG. 2

a device for guiding transfer film on a press roll,

FIG. 3

a device for feeding transfer film in a detailed representation and

FIGS. 4 and 5

Variants of a device for removing transfer film in a detailed representation.

• Ein Druckbogen wird zunächst mit einem bildgebenden Klebstoffmuster versehen (Auftragwerk 1 mit Farb-/Feuchtwerk 11, Plattenzylinder 12 und Gummioder Drucktuchzylinder 13).
• Danach wird im Folgedruckwerk gemeinsam mit einem Druckbogen eine Transferfolie 5 durch einen Transferspalt 6 geführt, wobei die Transferfolie 5 im Transferspalt 6 gegen den Druckbogen gepresst wird (Beschichtungswerk 2 mit Presswalze 3 und Gegendruckzylinder 4).

In FIG. 1 is a sheet-processing machine, here a printing press, shown, which consists of two printing units. The two printing units are used for the following purposes:

• A sheet is first provided with an adhesive image pattern (applicator 1 with inking / dampening unit 11, plate cylinder 12 and Gummioder the blanket cylinder 13).
• Thereafter, a transfer sheet 5 is passed through a transfer nip 6 in the following printing unit together with a printing sheet, wherein the transfer sheet 5 is pressed in the transfer nip 6 against the sheet (coating unit 2 with press roller 3 and impression cylinder 4).

The transfer nip 6 in the coating unit 2 is formed by a press roll 3 and an impression cylinder 4. Here, the press roller 3, the blanket cylinder and the impression cylinder 4 correspond to the impression cylinder of an offset printing unit. Furthermore, the press roller 3 can correspond to the forme cylinder and the impression cylinder 4 to the impression cylinder of a paint module of a sheet-fed press.
Transfer films 5 have a carrier layer and a release layer to form an imaging layer. The separating layer serves to facilitate lifting of the imaging layer from the carrier layer. The image-forming layer may be a metallized layer or a glossy layer or a texture layer or a colored layer or a layer containing one or more image patterns.
The film supply roll 8 is assigned to the coating unit 2 on the sheet feed side. 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 to the coating unit 2 and is therefore controllable. Furthermore, a deflecting or tensioning roller is provided in the region of the film feed. This will be the film web of the transfer film 5 is always held in the same tension against the press roller 3. On the downstream side of the coating unit 2, a film collecting roller 9 is arranged, is wound on the used sheet material again. For optimized production, a rotary drive 7 is provided, which is controllable. The transfer film 5 can also be moved by the rotary drive 7 on the discharge side and kept taut on the inlet side by means of a brake.
For the transfer process of the imaging eg metallized layer on the substrate in the transfer nip 6 is essential that the surface of the press roll 3 is equipped by means of a compressible, damping element. The press roll 3 can be provided with a press fabric 10, for example, as a plastic coating, comparable to a blanket or blanket. The press fabric 10 is held in a cylinder channel on jigs. The press fabric 10 is provided to improve the transfer properties in the transfer nip 6 with a specific elasticity or compressibility, which can be generated by means of conventional blankets or combined coverings of a blanket and a pad.
Furthermore, one or more pressing areas limited to subject areas can be provided directly on the press roll 3 or on the press fabric.

The arrangement of a press roll can also take place within the scope of the invention within a single coating module together with a processing unit. For this purpose, a printing unit (here, for example, commissioning unit 1 in Fig. 1 ) used for the adhesive application and the printing nip of the adhesive application on the same counter-pressure cylinder 4 of this printing unit downstream of a separate press roller can be arranged. Alternatively, at a printing unit (here, for example, coating 2 after Fig. 1 ) an auxiliary device for the adhesive application on the impression cylinder 4 upstream of the transfer nip 6. Both embodiments result in a compact design.

For intermediate or subsequent treatment of the adhesive layer or of the transfer image applied thereon, dryer 25 can be used for applicator 1 or the coating unit 2 be provided downstream. Here come in particular in connection with a corresponding adhesive UV dryer in question.

To control the applied transfer image, the coating unit 2 can be provided downstream of a monitoring system 26 for sheet inspection. By means of such a monitoring system 26, defects in the cold foil stamping process can be identified in addition to errors in the transfer image.

To ensure the cost-effectiveness of the coating method, provision may be made for the film advance of the transfer film 5 to be controlled from the film supply roll 8 to the transfer nip 6 and the film collection roll 9 in such a way that the transfer film 5 is stopped as far as possible when no transfer of the image-forming layer takes place should:
For this purpose, a control of the transfer film 5 can be made such that the film feed is stopped when passing through a gripper of the sheet-guiding counter-pressure cylinder 4 receiving cylinder channel. The press roll 3 also has a cylinder channel. In the area of the correlating cylinder channels, there is no pressing of the transfer film 5, so that the press roll 3 can slide through under the transfer film 5, while the transfer film 5 is tensioned freely between the press roll 3 and impression cylinder 4. At the so-called start of printing, the transfer film 5 is again clamped between the press roller 3 and the counter-pressure cylinder 4, including a printed sheet, and transported further.
The timing of the film feed can be executed in accordance with a necessary acceleration or braking of the film supply roll 8 or film collection roller 9 via so-called dancer rollers 18 or the rotary drives 7 of the film rolls 8, 9.

An improvement of the film utilization of the type described results when the transfer film 5 is divided into one or more Teilfolienbahnen lesser width. Thus, with appropriate control by means of the device or devices for timing the film feed each of the sub-film webs, the utilization of the transfer film 5 can be improved even in zonally different lengths coating areas within an arc. For this, each Teilfolienbahn only conveyed exactly in the area where the imaging surface layer is to be applied. In the areas not to be coated, each partial film web can be stopped independently of the other partial film webs, whereby no unnecessary film consumption arises.

According to the invention for this purpose in FIG. 2 Shown means for film guide on a press roller 3, which is guided substantially tangentially to the press roller 3 through the transfer nip 6 with the impression cylinder 4 of the coating unit 2. These include a corresponding film guide device 20 and a film feed device 30, which will be described below, and guide the film web 5 in the transport direction T through the coating unit 3.

Provided is a film guide 14 which is aligned approximately tangentially between the press roll 3 and the impression cylinder 4 and forms a wrap of the press roll 3 by less than 90 degrees. Thus, a defined system and guidance of the film web 5 are achieved at the press roller 3 and at the same time the necessary conditions for a possible film timing or a film discontinuity in the transfer nip 6 during a channel pass in the transfer nip 6, but also for the use of narrow film webs 5, created.

The film guide 14 for a film web 5 or partial film webs 19 includes on the feed side to the transfer nip 6, starting from an inlet opening 16 on a printing unit protection 15 some guide rollers 22. These can be arranged differently depending on the configuration of the printing unit. The film guide 14 may according to Fig. 2 be arranged in conjunction with a Druckzylinderblasvorrichtung 36. This has blow holes for the formation of blow jets S, which are used on the one hand to guide a printing material B on the impression cylinder 4 when entering the transfer nip 6. The Druckzylinderblasvorrichtung 36 may also be directed to the pneumatic support on the film web 5 in order to spread this wrinkle-free and tight. By means of an appropriate arrangement of the printing cylinder blowing device 36, if necessary, one of the guide rollers 22 for guiding the film web 5 can be replaced

Part of the film guide 14 may further be a mechanical or pneumatic guide element on the edge of the printing unit protection 15 in the region of the inlet opening 16, which keeps the film web 5 taut and even when entering the coating unit 2.
The film guide 14 also passes the film web 5 past a cleaning device 39, which is assigned to the press roller 3. The cleaning device 39 is to remove on the press roller 3 to remove film residue or contamination originating from the film processing.

Another part of the film guide 14 includes on the discharge side of the transfer nip 6 starting at an exit opening 17 on a printing unit protection 15 further guide rollers 32, 34. These may in turn be arranged differently depending on the configuration of the printing unit. The film guide 14 is arranged here in conjunction with an inlet protection 33. This serves to secure the transfer gap 6 against unintentional interventions. The film web 5 can be guided around the inlet protection 33 or through openings in its contour. The guide rollers 32, 34 may be arranged in conjunction with the printing unit protection 15, so that they take along the film web 5 during its displacement. Alternatively, the guide roller 34 may be arranged to be adjustable, so that the wrap angle of the film web 5 is adjustable on the press roller 3.

In this context, it is also important that the transfer film 5 can come into contact with the counter-pressure cylinder 4 during a channel pass in the transfer nip 6 with grippers G. The grippers G hold a sheet B at its front edge on the impression cylinder 3 for secure transport through the transfer nip 6 fixed. With their so-called gripper back in the region of the pinching of the edge of the printing sheet B, they project to a slight extent over the circumference of the counter-pressure cylinder 4. Coordination to a channel also present on the press roll 3 is selected such that its associated edge comes into contact with the impression cylinder 4 only after the contour of the gripper G has arrived. However, since the film web 5 is stretched freely over the channel of the press roll 3, the grippers G can press into the film web 5 which is not supported there. For this purpose, it is advantageous the wrap angle of the film web adjustable to achieve an early separation of the gripper G of the film web 5 in the channel pass in the transfer nip 6.
Preferably, the gripper G are formed with a projecting in the smallest possible extent over the circumference of the impression cylinder 4 contour. Here, systems of grippers G can be used, the total are permanently or cyclically adjustable radially to the impression cylinder 4, so that the height of the gripper G can be minimized over the cylinder contour.

The film guide can be further supported by the fact that the cylinder channel of the press roll 3 is provided with a cover for largely cylindrical complement of the surface of the press roll. As a result, the film web 5 is indeed brought closer to the impression cylinder 4 in the area of the gripper G, but the film guide is overall more continuous and quiet.

In addition, the guide of the transfer film 5 by another guide roller 38 (see Fig. 1 ), which is arranged in the area after the film removal from the film supply roll 8. By means of this guide roller 38, which is adjustable in its axial position relative to the position of the axis of the film supply roll 8, unevenness or irregularities of the film flow from the film supply roll 8 can be compensated for feeding the film web 5 to the film guide 14.

According to FIG. 3 a drawer cassette 21 with guide elements made of metal and / or plastic (CFK) is provided. As guide elements by means of integrated first rotating guide rollers 22 are provided. Also usable are air-purged blow rods or blow rods made of sintered metal with air outlet towards the film web 5, so that the transfer film 5 is carried on an air cushion. The guide rollers 22 may be made of aluminum or reinforced plastic, such as CFRP, so they are easy to build and thus enter the lowest possible stress in the film web 5. The guide rollers 22 may be surface-coated, for example with Teflon or other the adhesion of the transfer film 5-reducing coatings. The guide rollers 22 associated guide plates 23, which may be coated in the same sense, serve the planar guidance of the film web 5. The guide plates 23 preferably form a guide channel 24 and serve both for film guidance (deflection) during the film run and also as an insertion aid when film feed at the beginning of a production process.

The drawer cassette 21 may be associated with a printing cylinder blowing apparatus or the drawer cassette 21 may be configured together with the printing cylinder blowing apparatus as a unit. Thus, the drawer cartridge 21 can be used simultaneously for sheet guiding on the impression cylinder 4.

The film guiding device 20 can furthermore be supported by means for generating blowing air. For this purpose, it may have at the film exit to the transfer nip 6 between the press roller 3 and the impression cylinder 4, a blowing device 16, which directs one or more bundled or fan-shaped air jets S for sheet guiding below the film web 5 on the substrate eg on label paper, which may be very thin , The blown air stream from the air jet S also carries and smoothes the film web 5. Here, in particular, the combination with a Druckzylinderblasvorrichtung in question.
When the blown air is passed through the guide channel 24, it cools the film guide device 20 or its guide elements, so that frictional heat generated by the film transport can be dissipated.

The film guiding device 20 can be easily exchanged at the particularly critical deflection or exit positions guide elements, e.g. the guide rollers 22 or the guide plates 23, have, so that in service wear parts are easily replaceable.

The Folienleiteinrichtung 20 may be associated with a carton guide or integrated with this in a structural unit to prevent contact between the film web 5 and substrate (cardboard) even before their entry into the transfer nip 6 between the press roller 3 and the impression cylinder 4.

On the outlet side, ie in the transport direction of the film web 5 after the transfer nip 6 between the press roller 3 and the impression cylinder 4, is above the film web 5, a support plate 29 optionally applied with blowing air, arranged. Below the film web 5, a baffle 27 can be inserted temporarily to the film feeder.

On the outlet side, a film deflection is preferably in an existing printing unit protection 15 of the coating unit 2, for example. a protection for an automatic plate feeder, integrated. Here, in turn, the use of a guide roller 32 or a coated guide plate 28 or a possibly luftumspülten deflection is possible.

The said printing unit protectors 15 can be moved automatically during operation of a printing unit as a coating unit 2 with film webs 5 in a defined, preselected and lockable opening position, so that an appropriately sized inlet opening 16 and outlet opening 17 is provided for the film web 5.

According to FIGS. 4 and 5 Variants for discharging the film web 5 from the coating module 2 are shown.

In Fig. 4 is in the lower edge of the printing unit protection 15, a guide roller 32 inserted. The film web 5 can now be guided in a straight line from the transfer nip 6 to the guide roller 32 and be discharged from the outlet opening 17. With this arrangement, the guidance of the film web 5 is simple and the printing unit protection 15 only needs to be changed slightly.

Alternatively, according to Fig. 5 a pair of guide rollers 32, 34 may be provided. These guide rollers 32, 34 can be arranged on a support 35 arranged on the printing unit protection 15 or arranged independently of the printing unit protection 15. The holder 35 can accordingly be designed to be insertable, displaceable or self-adjustable in the coating module 2 or on the printing unit protection 15.

For improved access to the impression cylinder 4, the holder 35 may be arranged so that it is positioned above a run-in protection 33. The run-in protection 33 serves to secure the transfer gap 6 against unintentional interventions. In this case, the inlet protection 33 is provided with a passage opening for the film web 5. Furthermore, in turn, a support plate 29 is provided for the derivation of the film web 5 from the transfer nip 6. Thus, the film web 5 can be guided out of the transfer gap 6 via the support plate 29, the guide roller 34 and the guide roller 32 out of the outlet opening 17.
Alternatively, as shown in phantom, the holder 35 with the guide rollers 32, 34 may also be arranged below the inlet protection 33. Then, the film web 5 and waiving the support plate 29 in a straight line of the first guide roller 34 can be supplied via this second guide roller 32 to discharge it via the outlet opening.
Furthermore, the holder 35 may be formed so that the position of the guide roller 34 relative to the position of the guide roller 32 is variable. This can be done manually. Likewise, an actuator may be provided by means of which the working position of the guide roller 34 is adjustable depending on an operating condition or by procedural parameters by the machine control.
In a further alternative, the inlet protection 33 can be equipped for receiving guide devices for the film web 5.

For foil insertion, a guide or drawstring or strip of metal or plastic or foil is attached to the foil leading edge of the unwinding roll. By means of this auxiliary device, the film web 5 can be pushed or pulled through the film guide 20 within the coating unit 2.

The coating unit 2 may also be assigned a partially or fully automated collection device 30, eg by means of a cable pull, chain hoist, belt. In this case, both the entire path of the film web 5 or only the area within the coating plant (printing unit of a sheet-fed offset printing machine or paint module in a sheet-fed printing machine).
In this case, for example, a device as spring band steel, for example, between both sides of the machine will be pulled through the coating unit.

The press roll 3 and the impression cylinder 4 automatically move in a retraction position, i. preferably in a position in which both cylinders 3, 4 are not in synchronous position of their cylinder channels, as they have disadvantages for the film feedthrough. The lateral surfaces of the cylinder 3, 4 in the transfer nip 6 should rather serve as guide surfaces for film feedthrough. In this case, however, the cylinders 3, 4 are switched in a so-called pressure-off position, so that an opened guide gap for the film feed-through remains in the area of the transfer gap 6 by means of a set-up program.

The film collecting roller 9 may include a pressure roller 31 (see FIG Fig. 1 ) be assigned with adjustable pressure force and bias as a friction and leadership role. By means of the pressure roller 31, a defined tension (film tension) can be maintained on the film collecting roller 9, so that the film web 5 extends only to a very limited extent laterally and disturbances for this reason are avoided. In addition, a film guide can be provided at the edges of the film web 5 via flanges or suitable guide surfaces, so that no lateral film run can take place from the winding core and thus a film wound roll 9 is wound up.

By means of the described film guide 14 or 20, both a film feed and a film guide within a coating unit 2 can be made possible.
Here, the operability is ensured at all times and the set-up times are minimized. Finally, by means of the film guide 14 and 20, an extensive automation of all work and settings in the film insertion and film feedthrough possible.

LIST OF REFERENCE NUMBERS

1

commissioned

2

coating plant

3

press roll

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

Rubber / blanket cylinder

14

film guide

15

Printing plant security

16

blower

17

Entry / exit opening

18

dancer roll

19

Part sheet

20

Folienleiteinrichtung

21

plug-in unit

22

sheave

23

guide plate

24

guide channel

25

dryer

26

monitoring system

27

baffle

28

guide plate

29

Support plate

30

Sheet feeding device

31

capstan

32

sheave

33

Made

34

sheave

35

bracket

36

Druckzylinderblasvorrichtung

37

blower

38

guide roll

39

cleaning device

S

blowing jet

G

grab

B

substrate

T

transport direction

Claims (13)

1. A device for the transfer of imaging layers from a transfer film (5) onto print sheets having at least one form unit (1) for an imaging coating of a print sheet with an adhesive and with a coating unit (2) for transferring the imaging layers from the transfer film (5) onto the print sheet, wherein the coating module (2) contains an impression cylinder (4) and a press roller (3), which form a common transfer gap (6), and wherein furthermore the transfer film (5) can be guided about the press roller (3) in such a manner that it is placed with the coated side onto the print sheet guided on the impression cylinder (4) and under pressure jointly with the print sheet is guided through the transfer gap (6) between press roller (3) and impression cylinder (4), so that the imaging layer following the exiting of the print sheet from the transfer gap (6) in the region of the imaging regions provided with adhesive adheres to the print sheet and is lifted off the transfer film (5),
   wherein the press roller (3) corresponds to a blanket cylinder and the impression cylinder (4) to an impression cylinder of an offset printing couple
   or wherein the press roller (3) corresponds to a form cylinder and the impression cylinder (4) to an impression cylinder of a varnish module of a sheet-fed printing press, and
   wherein in the coating unit (2) a film guide (14) or film guiding device (20) for feeding the web of the transfer film (5) to the transfer gap (6) is provided,
   characterized in that
   the film guide in connection with a printing couple guard (15) of the coating unit (2) comprises an inlet opening (16) for the film web of the transfer film (5),
   in that the film guide (14, 20) is approximately orientated tangentially between the press roller (3) and the impression cylinder (4) and forms a wrap of the press roller (3) through the transfer film (5) by less than 90 degrees, in that in the coating unit (2) a film guide (14) with one or a plurality of film guiding elements for guiding the web of the transfer film (5) away from the transfer gap (6) are provided,
   in that the film guide in connection with a printing couple guard (15) of the coating unit (2) comprises an outlet opening (17) for the film web of the transfer film (5), and
   wherein film guiding elements are provided as guiding rollers (32, 34) and/or guiding panels (27, 28, 29) in the coating unit (2) and/or on the printing couple guard (15).
2. The device according to Claim 1,
   characterized in that
   a film guiding device (14, 20) forming a guide channel (24) for guiding the transfer film (5) towards the transfer gap (6) is provided.
3. The device according to Claim 1,
   characterized in that
   film guiding elements are provided in a releasably insertable or changeable manner as guide rollers (32, 34) and/or guide panels (27, 28, 29) as structural unit in the coating unit (2) and/or on a printing couple guard (15).
4. The device according to Claim 1 to 3,
   characterized in that
   the film guiding device (14, 20) as structural unit in the manner of a slide-in cartridge (21) in the coating unit (2) is provided in a releasably lockable insertable and/or changeable manner.
5. The device according to Claim 4,
   characterized in that
   the film guiding device (14, 20) forms a structural unit with a substrate guiding device assigned to the surface of the impression cylinder (4).
6. The device according to Claim 5,
   characterized in that
   the film guiding device (14, 20) forms a structural unit with a printing cylinder blowing device (36) guided onto the surface of the impression cylinder (4) such that by means of the film guiding device (14, 20) blowing air can be guided below the film web of the transfer film (5) against a substrate guided on the surface of the impression cylinder (4).
7. The device according to Claim 6,
   characterized in that
   the guiding device comprises a guide channel (24) for guiding the film web of the transfer film (5) and in that by means of a blowing device blowing air can be guided into the guide channel (24), so that the blowing air below the film web of the transfer film (5) can be guided against a substrate guided on the surface of the impression cylinder (4).
8. The device according to Claim 6,
   characterized in that
   the guiding device forms a structural unit with a carton guide assigned to the surface of the impression cylinder (4).
9. The device according to any one of the Claims 1 to 8,
   characterized in that
   the transfer film (5) is divided into one or a plurality of part film webs of lesser width and in that by means of the film guiding device (20) the part film webs are fed to the transfer gap (6) next to one another.
10. The device according to any one of the Claims 1 to 9,
    characterized in that
    the film guiding device (20) comprises guide elements, by means of which the part film webs are fed to the transfer gap (6) next to one another.
11. The device according to Claim 1,
    characterized in that
    the film guide (14) in the region where the film is guided out of the coating unit (2) comprises guide elements by means of which the wrap angle of the film web of the transfer film (5) or part film webs (19) on the press roller (3) is adjustable.
12. The device according to Claim 11,
    characterized in that
    the film guide (14) in the region of the film guiding out of the coating unit (2) comprises at least one guide element for the film web of the transfer film (5) or part film webs (19) that is adjustable in the circumferential spacing on the press roller (3) to the transfer gap (6).
13. The device according to Claim 11 or 12,
    characterized in that
    in the region where the film is guided out of the coating unit (2) a guiding roller (34) or a guiding roller pair (32, 34) which is adjustable in its position of the circumferential spacing on the press roller (3) to the transfer gap (6) in a manually or remotely controlled driving manner is provided.

Images