WO2017144261A1

WO2017144261A1 - Method and device for connecting two film webs and film web produced thereby

Info

Publication number: WO2017144261A1
Application number: PCT/EP2017/052558
Authority: WO
Inventors: Ulrich Schindler
Original assignee: Leonhard Kurz Stiftung & Co. Kg
Priority date: 2016-02-24
Filing date: 2017-02-06
Publication date: 2017-08-31
Also published as: CN109070489B; DE102016103272A1; CN109070489A

Abstract

The invention relates to a method for connecting two film webs (2, 3) each comprising a carrier layer and a transfer layer, the transfer layers each comprising a plurality of motif areas (2m, 3m) particularly arranged in a periodical raster design, so as to form a spliced film web (5), said method comprising the following steps: a) arranging the film webs (2, 3) such that the end sections of the film webs (2, 3) overlap each other and motif areas (2m, 3m) lying one above the other in a connection region are arranged in a superimposable manner; b) fixing the film webs (2, 3); c) forming a butt joint between the two film webs (2, 3); d) preparing a double-T-shaped seam joint element (4v), the height thereof corresponding to the width of the film webs (2, 3) and the smallest width thereof in the connection section of the two transverse T-sections corresponding to the distance between adjacent motif areas (2m, 3m), the edge contour of the seam joint elements (4v) corresponding, at least in sections, to the edge contour of the motif areas (2m, 3m); e) forming an adhesive layer (4k) on the seam joint element (4v); f) positioning the seam joint element (4v) over the butt weld between the film webs (2, 3) in a precisely fitting manner, the adhesive layer (4k) facing the film webs (2, 3); g) pressing the seam joint element (4v) on the film webs (2, 3); h) and hardening the adhesive (4k). The invention also relates to a device for connecting two film webs and to a film produced according to the method.

Description

Method and device for connecting two film webs and thus obtainable film web

The invention relates to a method for joining two film webs, a device for joining two film webs, a film web obtainable in this way and their use.

In the processing and application of transfer films and laminating films, several film webs often have to be joined together in order to obtain a correspondingly longer overall length ("run length") .The film web is then preferably rolled up on a roll without

Interruptions in the desired run length before.

US Pat. No. 4,072,552 A discloses a method for joining two films, in which the films are arranged overlapping and connected by means of a UV-activatable adhesive. This method does not take into account that arranged on the slides

Motif areas in most cases in the direction of the optimal

Film surface utilization so close together that a common adhesive seam inevitably runs over image sequences and thus this

Image sequences can not be used or pronounced.

The object of the present invention is to provide an improved

Specify method and an apparatus and a film web obtainable therewith, by which the mentioned disadvantages are reduced or avoided.

This object is achieved by a method according to claim 1, a device according to claim 12 and a film web according to claim 22. It is a method for joining two film webs, each having a carrier layer and a transfer layer, wherein the transfer layers n

Motif tracks each having a plurality of arranged in particular in a periodic grid motif areas include, proposed to a spliced film web with the steps: a) arranging the film webs, so that the end portions of

Film webs overlap each other and superimposed in a connection area superimposed motif areas are arranged; b) fixing the film webs;

c) forming a butt joint between the two film webs by performing a severing cut along a cutting line in FIG

Connecting portion, wherein the cutting line preferably transversely to the Longitudinal extent of the film webs is arranged and forms a center line between two adjacent motif areas;

Providing a connecting strip, comprising n double-T-shaped seam connecting elements whose height corresponds to the width of the film webs and whose smallest width in the connecting portion of the two transverse T-sections of the distance adjacent

Motif areas corresponds, wherein the edge contour of

Seam connection element at least partially corresponds to the edge contour of the motif areas;

Forming an adhesive layer on the connection strip;

precise positioning of the connecting strip over the

Butt joint between the film webs, wherein the adhesive layer faces the film webs;

Pressing the connection strip onto the film webs;

Curing the adhesive.

The proposed method has the advantage that a matched by the design of the subject areas seam connection element

large-area seam of high strength is formed, but overlaps no subject area. Another advantage is that the

Do not apply connecting seam as the foil webs butt against each other.

The seam connector may be symmetrical or asymmetrical

be educated. An asymmetrical seam connector can

for example, on the film web not on both sides have a reading mark, but only on one side. It can be provided that the film webs are arranged in method step a) on an alignment plate having markings on which the film webs are aligned. This facilitates the alignment of the film webs relative to each other.

It can further be provided that the alignment plate is formed with a kerf, along which the separation cut is carried out in method step c). This facilitates the preparation of the two film webs, in particular their cropping.

The seam connector may be used as a center portion of a

Surface element are formed, whose adjacent to the center portion edge portions are formed as positioning holes formed with positioning tabs. This facilitates the positioning of the seam connecting element relative to the film webs.

It can further be provided that the surface element is arranged on a bearing surface of a transmission device such that the

Positioning holes of the positioning tabs in the

Transfer device arranged guide pins are penetrated and then the method steps f) and g) are performed, wherein in

Method step f) the transmission device is positioned so that the guide pins pass through guide holes formed in the alignment plate. It can further be provided that, after carrying out method step h), in a method step i), the positioning tabs are separated from the spliced foil web. It can be provided that the adhesive layer in method step e) is formed by an adhesive selected from the group of the reactive acrylates and / or the reactive epoxides and / or the reactive enol ethers and / or the reactive cyclic amines and / or unsaturated polyester resins.

Advantageously, it can be provided that the training of

Adhesive layer in step e) by means of a pencil application. In this case, the adhesive can be applied with the aid of a pencil-type tool, wherein the tool can have, for example, an adhesive reservoir and a finely structured outflow opening for dispensing the adhesive.

It may alternatively be provided that the formation of the adhesive layer in process step e) takes place by ink jet printing. In this case, the adhesive can be printed with appropriately designed inkjet printheads or

be applied.

It can further be provided that in method step e) the

Suture connecting element as the center portion of the surface element is arranged on the support surface of the transfer device.

There is further a device for connecting two film webs

proposed, which each have a carrier layer and a transfer layer, wherein the transfer layers each comprise a plurality of arranged in particular in a periodic grid motif areas, to a spliced film web, wherein it is proposed that the device is an alignment plate, clamping devices, a transfer device, a first cutting device , a second cutting device and a Coating device comprises. Preferably, the device further comprises an exposure device.

It can be provided that the alignment plate has on its upper side a aligned with its longitudinal axis guide groove into which the end portions of the film webs to be joined together can be inserted.

The bottom of the guide groove may have markings which are designed to align the film webs in the register. Register or register or registration accuracy or registration accuracy is a positional accuracy of two or more elements and / or layers relative to each other

understand. The register accuracy should be within one

move predetermined tolerance and thereby be as low as possible. At the same time, register accuracy of multiple elements and / or layers to each other is an important feature in order to increase process reliability. The positionally accurate positioning can be effected in particular by means of sensor-based, preferably optically detectable registration marks or register marks. These register marks or register marks can either represent special separate elements or regions or layers or themselves be part of the elements or regions or layers to be positioned.

In an advantageous embodiment it can be provided that the alignment plate has an aligned with its transverse axis kerf, which cooperates with the first cutting device.

It can further be provided that in the two of the kerf adjacent sections of the alignment plate outside the guide slot guide holes are arranged for receiving guide pins of the

Transmission device are formed.

The transfer device may have a support surface for receiving a surface element formed from a connecting film, wherein a center section of the surface element is designed as a seam connection element and the two edge sections are designed as positioning tabs. It can be provided that the first cutting device as a

Mechanical cutting device is formed with a knife edge.

It can further be provided that the second cutting device is designed as a laser cutting device, comprising a laser head and a cutting support, on which the connecting film can be placed.

The coating device can be designed as an application device according to the principle of the pin application for a UV-curing adhesive.

The exposure device may be formed with a UV lamp, the radiation spectrum of which is tuned to the curing under UV light adhesive.

It will continue a film web of at least two with a

Seam connecting element connected partial film webs proposed, wherein the partial film webs have arranged in a periodic grid motif areas, obtainable by the method described above. It can be provided that the seam connecting element is formed double-T-shaped, wherein its height corresponds to the width of the partial film webs and whose smallest width in the connecting portion of the two transverse T-sections corresponds to the distance of adjacent motif areas, and wherein the edge contour of the seam connecting element at least in sections the edge contour of the subject areas corresponds.

Furthermore, the use of such a film web as a stamping foil, in particular as a hot stamping foil or as a laminating foil is proposed.

The invention will now be explained in more detail with reference to exemplary embodiments. Show it

Fig. 1 is a schematic representation of an apparatus for

Carrying out an embodiment of a method for

Joining foil webs;

FIG. 2 shows a schematic representation of a first method step for connecting two film webs; FIG.

3 is a schematic representation of a second method step for connecting the two film webs;

4 shows a schematic representation of a third method step for connecting the two film webs;

5 shows a schematic representation of a fourth method step for connecting the two film webs; 6 shows a schematic representation of a fifth method step for connecting the two film webs; FIG. 7 is a schematic representation of a sixth method step for connecting the two film webs; FIG.

Fig. 8 is a schematic illustration of a seventh process step for joining the two film webs; 9 shows a schematic representation of an eighth method step for connecting the two film webs;

10 is a schematic representation of a ninth method step for connecting the two film webs;

Fig. 1 1 is a schematic representation of a tenth method step for connecting the two film webs;

Fig. 12 is a schematic representation of an eleventh method step for

Joining the two film webs;

Fig. 13 is a schematic illustration of a twelfth process step for joining the two film webs; Fig. 14 is a schematic representation of a thirteenth

Method step for joining the two film webs;

Fig. 15 is a schematic representation of a fourteenth

Method step for joining the two film webs;

Fig. 16 is a schematic representation of a fifteenth

Method step for joining the two film webs;

Fig. 17 is a schematic representation of a sixteenth

Method step for joining the two film webs;

Fig. 18 a connecting portion of the film webs in a schematic

Presentation; Fig. 19, 20 a connecting portion of film webs with three

Motive traces in a schematic representation;

Fig. 21 is a connection strip for connecting the film webs in

Fig. 19 in a schematic representation.

Fig. 1 shows a connecting device for connecting a first

Film web 2 and a second film web 3, comprising an alignment plate 1 1, clamping devices 12, a transfer device 13, a first cutting device 14, a second cutting device 15, a

Coating device 16 and an exposure device 17.

The alignment plate 1 1 has on its upper side a aligned with its longitudinal axis guide groove 1 1f, in which the end portions of the film webs to be joined together 2 and 3 can be inserted. The bottom of the

Guide groove 1 1f has marks 1 1 m, which is used to align the

Film webs 2 and 3 are formed in the register, as described below in FIGS. 2 and 4. The markings 1 1 m are in the embodiment shown in FIG. 1 to the subject areas 2m and 3m congruent. The

Alignment plate 1 1 further has an aligned with its transverse axis kerf 1 1 s, which cooperates with the first cutting device 14, as described below in Fig. 6. In the two of the kerf 1 1 s adjacent sections of the alignment plate 1 1 are outside the guide groove 1 1 f

Guide holes 1 11 arranged, which are adapted to receive guide pins 13s of the transfer device 13. In the embodiment shown in Fig. 1, four guide holes 1 11 are provided, the

Center points form the corners of a rectangle whose axes are aligned with the

Longitudinal axis or the transverse axis of the alignment plate 1 1 are aligned. In the embodiment shown in Fig. 1, the clamping devices

12 formed as magnets, as described below in Fig. 6, the end portions of the film webs to be joined 2 and 3 on the alignment plate 1 1 fix.

The transfer device 13 is as a double T-shaped plate

educated. In the starting position illustrated in FIG. 1, the underside of the transfer device 13, which is formed with a support surface 13a, points upwards. The bearing surface 13a is configured to receive a surface element 4f, shown in FIG. 8, formed from a connecting foil 4. The surface element 4f comprises a seam connection element 4v and lateral positioning tabs 4L

The respective opposite end portions of the

Transmission device 13 have through holes 13d penetrated by the guide pins 13s. The guide pins 13s are axially slidable in the through holes. The engaging in the guide holes 1 11 of the alignment plate 1 1 end portions of the guide pins 13s protrude in the illustrated in Fig. 1 starting position of the transmission device 13 from the bottom of the transmission device 13 out. The guide pins 13s are in this position by rigidly connected to the guide pins

Magnetic disks 13m fixed on the top of the transfer device

13 rest while forming a magnetic adhesive force.

The first cutter 14 is as a mechanical cutter formed with a knife edge 14s. Drive and guide elements of the first cutting device 14 are not shown in Fig. 1.

The second cutter 15 is formed as a laser cutter comprising a laser head 151 and a cutting pad 15a.

The coating device 16 is designed as an application device according to the principle of the pin application for a UV-curing adhesive. Drive and guide elements of the coating device 16 are not shown in Fig. 1.

The exposure device 17 comprises a UV lamp whose

Radiation spectrum is matched to the aforementioned UV-curing adhesive, so that the adhesive cures under the exposure device, as described below. Drive and guide elements of

Exposure device 17 are not shown in Fig. 1.

FIGS. 2 to 17 show method steps of the method that can be carried out with the connecting device 1.

FIG. 2 shows a first method step in which the end section of the first film web 2 is inserted into a first section of the guide groove 11f of FIG

Alignment plate 1 1 is inserted, that it projects beyond the kerf 1 1 s and 2m formed in the first sheet 2 motif areas in the register to the

Markings 1 1 m of the alignment plate 1 1 are arranged. The film webs 2 and 3 have a carrier layer and a transfer layer and are inserted into the guide groove 11f in such a way that the transfer layer faces the alignment plate 11.

Preferably, the carrier layer of the film webs 2 and 3 is made

Polyethylene or PET with a layer thickness of 4 μιτι to 150 μιτι, preferably from 4 μιτι to 36 μιτι. The transfer layer has a decorative layer with the motif areas 2m, 3m, which are arranged in a regular grid and between which motif-free areas are formed.

The decorative layer may comprise a lacquer layer, in particular pigments, in particular colorful or achromatic pigments and / or effect pigments,

Thin film systems, cholesteric liquid crystals, dyes and / or metallic or non-metallic nanoparticles.

Additionally or alternatively, the decorative layer may comprise at least one replication layer with a surface relief, which is an optically variable

Element forms. The optically variable element may, for example, be a hologram, a Kinegram® or Trustseal®, a preferably sinusoidal diffraction grating, an asymmetric one

Relief structure, a blazed grating, a preferably isotropic or anisotropic matte structure or a light-diffractive and / or refractive and / or light-focusing micro or nanostructure, a binary or continuous Fresnel lens, a microprism structure or a combination structure thereof. Other layers, such as reflection layers, for example, metal layers and / or layers of high refractive index materials (HRI, high refractive index) may be provided. Preferably, the layers are partially formed so that they form the desired motif of the motif area 2m, 3m.

The transfer layer can also have one or more further layers selected from the group of protective layers, color coat layers,

Adhesive layers, adhesive layers, barrier layers,

Volume hologram layers.

3 shows a second method step, in which the film web 2 arranged in the guide groove 11f and aligned in the register is fixed on the alignment plate 11 by the clamping device 12 designed as a magnet. It may also be provided to fix the film web 2 by applying a negative pressure, wherein in this embodiment, the bottom of the guide groove 1 1f is formed perforated by suction holes connected to a vacuum source.

4 shows a third method step, in which the end section of the second film web 3 is in the first section of the guide groove 1 1 f

adjacent portion of the guide groove 1 1f is inserted, that he

Section 1 1 s projects beyond and rests on the end portion of the first sheet, wherein the formed in the second sheet 3 motif areas 3m are arranged in register with the marks 1 1 m of the alignment plate 1 1. 5 shows a fourth method step, in which the film web 3 arranged in the guide groove 11f and aligned in the register is fixed on the alignment plate 11 by the clamping device 12 designed as a magnet. Also in this method step may alternatively be provided to fix the film web 3 by applying a negative pressure.

6 shows a fifth method step, in which the superimposed end sections of the film webs 2 and 3 are severed along the kerf 1 1 s and a butt joint is formed between the two film webs 2 and 3. For this purpose, the knife edge 14s is pulled through the kerf, as indicated in Fig. 6 by a directional arrow. However, it can also be provided to arrange the knife edge 14s parallel to the kerf 1 1 s and to carry out the separating cut by lowering the knife edge 14s into the kerf. As a further alternative method step, provision may be made to carry out the severing cut with a laser head moved along the kerf 11, for example with the laser head 151, which is provided for forming the seam connecting element 4v, as described below.

FIG. 7 shows a sixth method step in which the supernatants 2r and 3r separated from the film webs 2 and 3 in the fifth method step are removed. The supernatants 2r, 3r can be removed, for example, by blowing and / or suction by means of an auxiliary device, not shown in FIG.

FIG. 8 shows a seventh method step in which the surface element 4f, the seam connection element 4v and the positioning tabs 41 comprises, is cut out of the connecting film 4. The seventh

Process step is carried out in the second cutting device 15. The connecting film 4 is placed on the cutting support 15a. Then, the laser head 151 is moved in a plane parallel to the surface of the connecting foil 4 in the x-y direction, as shown in Fig. 8 by directional arrows. The laser head 151 once bypasses a curve corresponding to the edge contour of

Support surface 13a of the transfer device 13 corresponds to and thus cuts out the surface element 4f. Then, the laser head 151 cut out of the positioning tabs 41 two positioning holes 4p, respectively, which are congruent with and aligned with the through holes 13d formed in the transmitting device 13. It can be provided, the

Form connecting film 4 as a film web, which is gradually passed by the laser head 151. In the connecting film 4 is a film of polyethylene or PET with a thickness of 4 μιτι to 150 μιτι, preferably from 4 μιτι to 36 μιτι.

Fig. 9 shows an eighth method step, in which the seventh

Process step produced surface element 4f is deposited on the support surface 13a of the transfer device 13, wherein the guide pins 13s the

Penetrate positioning holes 4p of the surface element 4f. In the exemplary embodiment illustrated in FIG. 9, the device elements required for precisely fitting placement of the surface element 4f on the support surface 13a are not shown. For example, the surface element 4f can be detected by a vacuum gripper arranged on a robot arm and deposited on the support surface 13a. 10 shows a ninth method step in which the

Coating device 16 is positioned over the surface element 4f disposed on the transfer device 13, and then on the region of the seam connection element 4v, an adhesive layer 4k is formed from the above-mentioned UV-curing adhesive. In the in Fig. 10

Embodiment shown are the for the movement of the

Coating device 16 required device elements not shown. The coating device 16 positioned above the surface element 4f is moved in a plane parallel to the surface of the surface element 4f in the x-y direction, as illustrated in FIG. 10 by directional arrows, wherein the entire surface of the seam connection element 4v, that is the

Middle section between the positioning tabs 41, is coated with adhesive.

Preference is given here to an adhesive selected from the group of the reactive acrylates and / or the reactive epoxides and / or the reactive enol ethers and / or the reactive cyclic amines and / or unsaturated

Polyester resins used.

FIG. 11 shows a tenth method step in which the

Transfer device 13 is pivoted by 180 °, is positioned over the alignment plate 1 1 so that the longitudinal axes of the guide pins 13s are aligned with the longitudinal axes of the guide holes 1 11 of the alignment and then lowered onto the alignment plate 1 1 until the underside of the

Transfer device 13 rests on the top of the alignment plate 1 1. In this case, arranged on the transfer device 13 and coated with UV varnish seam connection element 4v fits precisely on the formed in the fifth process step butt joint of the two film webs 2 and 3 arranged. The arranged on the seam connector 4v

Adhesive layer 4k rests on the film webs 2, 3 and overlaps the butt joint between the film webs 2, 3.

Fig. 12 shows an eleventh process step in which the guide pins 13s of the transfer device 13 are moved in the axial direction so far that they emerge from the guide holes 11 1 of the alignment plate. In this case, the magnetic adhesive force is arranged on the guide pins 13 s

Magnetic discs overcome 13m. After the performance of the eleventh

Process step, the transfer device 13 are lifted from the alignment plate 1 1.

FIG. 13 shows a twelfth method step in which the

Transfer device 13 is brought into its initial position by being lifted off the alignment plate 1 1, rotated 180 ° and then stored. In this case, the guide pins 13s are moved axially until the magnetic disks 13m come to rest on the upper side of the transfer device 13 and form the magnetic adhesive force described above in FIG.

FIG. 14 shows a thirteenth process step in which the

Exposure device 17 is positioned over the suture tie 4v and the UV curable adhesive is cured. Preferably, UV light having a wavelength of 100 nm to 400 nm, preferably 380 nm to 400 nm, is used. The two film webs 2 and 3 are connected to a spliced film web 5 after curing of the adhesive. Preference is given to curing with an exposure time of 0.1 s to 300 s, preferably 1 s to 10 s, and / or an exposure power of 0.005 W / cm ² to 20 W / cm ² , preferably 0.005 W / cm ² to 1 W / cm ² and / or at a temperature of 10 ° C to 45 ° C, preferably from 21 ° C to 23 ° C.

carried out.

In this wavelength range is an activation of the adhesive

ensured, while the material of the seam connection member 4v is sufficiently transparent. For the parameters mentioned for curing a sufficient and reliable curing of the adhesive is ensured. The curing can take place under normal ambient conditions in air, but also with a unit flooded with inert gas. The unit would then be designed so that the curing area of the adhesive is completely enclosed with the inert gas. As inert gases, for example, nitrogen and / or noble gases (helium, neon, argon, krypton, xenon, radon) can be used.

Fig. 15 shows a fourteenth method step in which the with

Suture fastener 4v integrally positioning tabs 41 are separated, the knife edge 14s of the first cutter is guided on aligned with the outer edges of the spliced foil web 5 cutting lines. However, it can also be provided to arrange the knife edge 14s parallel to the aforementioned cutting line and to carry out the separating cut by lowering the knife edge 14s onto the bottom of the guide groove 11f. As a further alternative method step it can be provided to carry out the separating cut with a laser head moved along the said cutting line, for example with the laser head 151. Fig. 16 shows a fifteenth Verfahrenssch tt, in which the separated in the fourteenth method step positioning tabs 41 are removed. The positioning tabs 41 can be removed, for example, by blowing and / or suction by means of an auxiliary device not shown in FIG. 16.

17 shows a sixteenth method step in which the two clamping devices 12 designed as magnets are removed.

Fig. 18 shows a seventeenth process step, in which the spliced film web 5 is removed from the alignment plate 1 1.

Of the spliced film web 5 can all during processing

Subject areas 2m, 3m are pronounced. Also in the seam area

arranged subject areas 2m, 3m can without changing the

Machine parameters are pronounced.

19 shows an enlarged section of the spliced foil web 5. The contour of the seam connecting element 4v is the edge contour of the

Distance space of two adjacent subject areas 2m and 3m adjusted. As a result, the total adhesive surface is drastically enlarged by the additional outer regions compared with a strip-shaped seam connection element 4v shown hatched for comparison in FIG. 19, whose width corresponds approximately to the distance between adjacent motif regions 2m and 3m, and thus improves the seam stability. Calculations for typical seam fasteners 4v show

Area enlargements in the range of 350 to 525%. Seams provided in this manner for a test sheeting and subsequently tested also resulted in surprisingly high fracture stress values in the range of about 130 MPa.

Furthermore, it was found that under tensile loading of the above-described spliced foil strip 5, a partial displacement of the stresses in the

Outside areas of the connection area occurs in which the two

Transverse legs of the double-T-shaped seam connection element 4v are arranged.

FIGS. 19 and 20 show webs of film 2 and 3 which abut one another and are formed in contrast to the previously described film webs, each having three motif tracks 6. To connect the film webs 2 and 3, a connecting strip 7 shown in FIG. 21 is provided, which comprises three surface elements 4f corresponding to the three motif tracks 6. The height of the

Connecting strip 7 corresponds to the width of the film webs 2 and 3. After joining the film webs 2 and 3, the film web can be separated into three spliced film webs 5.

LIST OF REFERENCE NUMBERS

1 connection

2 first film web

2m motif area

2r supernatant

3 second film web

3m motif area

3r supernatant

4 connecting foil

4f surface element

41 positioning tabs

4k adhesive layer

4p positioning hole

4s strip-shaped seam connector

4v double T-shaped seam connector

5 spliced film web

6 motif track

7 connecting strips

1 1 alignment plate

1 1f guide groove

1 11 leadership hole

1 1 m mark

1 1 s kerf

12 clamping device

13 transmission device

13a bearing surface

13d through hole Magnetic disc

s guide pin

first cutter knife edge

second cutting device a cutting pad

1 laser head

Beschichtungsvornchtung

exposure device

Claims

LEONHARD KURZ Foundation & Co. KG, Schwabacher Straße 482, 90763 Fuerth, Germany;

claims

Method for connecting two film webs (2, 3), which each have a carrier layer and a transfer layer, wherein the

Transfer layers n motif tracks (6) each having a plurality of arranged in particular in a periodic grid motif areas

(2m, 3m), to a spliced film web (5) with the

steps:

Arranging the film webs (2m, 3m), so that the end portions of the film webs (2m, 3m) overlap each other and arranged in a connecting region superimposed motif areas (2m, 3m) are congruent;

b) fixing the film webs (2m, 3m);

c) forming a butt joint between the two film webs (2m, 3m) by performing a severing cut along a cutting line (11 sec) in the joining region, the cutting line preferably (11 sec) transverse to the longitudinal extent of the joining web Film webs (2, 3) is arranged and forms a center line between two adjacent motif areas (2m, 3m);

d) providing a connection strip (7) comprising n

Double T-shaped seam connecting elements (4v) whose height corresponds to the width of the film webs (2, 3) and whose smallest width in the connecting portion of the two transverse T sections corresponds to the spacing of adjacent motif areas (2m, 3m), the edge contour of the seam connecting element (4v) corresponds at least in sections to the edge contour of the motif areas (2m, 3m);

e) forming an adhesive layer (4k) on the connection strip (7);

f) accurately positioning the connecting strip (7) over the butt joint between the film webs (2, 3), wherein the

Adhesive layer (4k) to the film webs (2, 3) points;

g) pressing the connection strip onto the film webs (2, 3); h) curing the adhesive (4k).

Method according to claim 1,

characterized,

the seam connecting element (4v) is symmetrical or asymmetrical.

Method according to claim 1 or 2,

characterized,

that the film webs (2, 3) in step a) on a

Alignment plate (1 1) are arranged, the markings (1 1 m), where the film webs (2, 3) are aligned. Method according to claim 3,

characterized,

in that the alignment plate (11) is formed with a kerf (11 sec.) along which the separation cut is carried out in method step c).

Method according to one of the preceding claims,

characterized,

in that the seam connection element (4v) is formed as a center section of a surface element (4f) whose edge sections adjoining the center section are designed as positioning tabs (41) formed with positioning holes (4p).

Method according to claim 5,

characterized,

that the surface element (4f) on a support surface (13a) of a

Transmission device (13) is arranged so that the

Positioning holes (4p) of the positioning tabs (41) of guide pins (13s) arranged in the transfer device (13) are passed through and then method steps f) and g) are carried out, wherein in step f) the transfer device (13) is positioned so that the guide pins (13 s) in the alignment plate (1 1) pass through formed guide holes (1 11).

Method according to claim 6,

characterized,

that after carrying out the method step h) in one method step i) the positioning tabs (41) are separated from the spliced foil web (5).

Method according to one of the preceding claims,

characterized,

that the adhesive layer (4k) in process step e) by a

Adhesive selected from the group of reactive acrylates and / or reactive epoxides and / or the reactive enol ethers and / or the reactive cyclic amines and / or unsaturated polyester resins is formed.

Method according to one of the preceding claims,

characterized,

the formation of the adhesive layer (4k) in method step e) takes place by means of a pencil application.

Method according to one of claims 1 to 8,

characterized,

the formation of the adhesive layer (4k) in method step e) is effected by ink-jet printing.

Method according to one of claims 6 to 10,

characterized,

in method step e), the seam connection element (4v) is arranged as the middle section of the surface element (4f) on the support surface (13a) of the transfer device (13). Device (1) for connecting two film webs (2, 3) which each have a carrier layer and a transfer layer, wherein the transfer layers each comprise a plurality of motif regions (2m, 3m) arranged in particular in a periodic grid, to form a spliced film web (5 )

characterized,

in that the device (1) has an alignment plate (1 1), clamping devices (12), a transfer device (13), a first cutting device (14), a second cutting device (15), a coating device (16) and optionally an exposure device (17). includes.

Device according to claim 12,

characterized,

in that the alignment plate (11) has on its upper side a guide groove (11f) which is aligned with its longitudinal axis and into which the end sections of the film webs (2 and 3) to be joined can be inserted.

Device according to claim 13,

characterized,

that the bottom of the guide groove (1 1 f) has markings (1 1 m), which are designed for aligning the film webs (2 and 3) in the register.

Device according to one of claims 12 to 14,

characterized,

that the alignment plate (1 1) is aligned with its transverse axis

Has kerf (1 1 s), which cooperates with the first cutting device (14). Device according to claim 15,

characterized,

that in the two of the kerf (1 1 s) adjacent portions of the alignment plate (1 1) outside the guide groove (1 1 f) guide holes (1 11) are arranged, which are adapted to receive guide pins (13s) of the transfer device (13) ,

Device according to one of claims 12 to 16,

characterized,

in that the transfer device (13) has a bearing surface (13a) for receiving one of a connecting foil (4)

Surface element (4f), wherein a center portion of the

Surface element (4f) is formed as a seam connection element (4v) and the two edge portions are formed as positioning tabs (41).

Device according to one of claims 12 to 17,

characterized,

that the first cutting device (14) as a mechanical

Cutting device with a knife edge (14s) is formed.

Device according to one of claims 12 to 18,

characterized,

that the second cutting device (15) as a

Laser cutting device is formed, comprising a laser head

(151) and a cutting support (15a) on which the connecting foil can be placed. Device according to one of claims 12 to 18,

characterized,

that the coating device (16) as an application device according to the principle of the pin application for under UV light

curing adhesive is formed.

Device according to one of claims 12 to 19,

characterized,

in that the exposure device (17) is formed with a UV lamp whose radiation spectrum is matched to the UV-curing adhesive.

Film web (5) comprising at least two partial film webs (2, 3) connected to a seam connecting element (4s), the partial film webs (2, 3) having motif regions (2m, 3m) arranged in a periodic pattern, obtainable by a process according to one of the claims 1 to 10.

Film web according to claim 22,

characterized,

in that the seam connecting element (4s) has a double T-shaped configuration, the height of which corresponds to the width of the partial film webs (2, 3) and its smallest width in the connecting section of the two

transverse T-sections corresponds to the distance of adjacent motif areas (2m, 3m), and wherein the edge contour of

Seam connection element (4v) at least in sections of the

Edge contour of the subject areas (2m, 3m) corresponds. Use of a film web (5) according to claim 22 or 23 as a stamping foil, in particular as a hot stamping foil or as a laminating foil