WO2021224050A1 - Laminating installation - Google Patents

Laminating installation Download PDF

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Publication number
WO2021224050A1
WO2021224050A1 PCT/EP2021/060882 EP2021060882W WO2021224050A1 WO 2021224050 A1 WO2021224050 A1 WO 2021224050A1 EP 2021060882 W EP2021060882 W EP 2021060882W WO 2021224050 A1 WO2021224050 A1 WO 2021224050A1
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WO
WIPO (PCT)
Prior art keywords
laminating
substrate
switch
film
adhesive
Prior art date
Application number
PCT/EP2021/060882
Other languages
German (de)
French (fr)
Inventor
Michael Gierlings
Thorsten KLOMFASS
Kai ETHNER
Hans-Georg Kinzelmann
Original Assignee
Henkel Ag & Co. Kgaa
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Application filed by Henkel Ag & Co. Kgaa filed Critical Henkel Ag & Co. Kgaa
Publication of WO2021224050A1 publication Critical patent/WO2021224050A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/0046—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by constructional aspects of the apparatus
    • B32B37/0053—Constructional details of laminating machines comprising rollers; Constructional features of the rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/04—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the partial melting of at least one layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B39/00—Layout of apparatus or plants, e.g. modular laminating systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/16—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating
    • B32B37/20—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating involving the assembly of continuous webs only
    • B32B37/203—One or more of the layers being plastic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/16—Drying; Softening; Cleaning
    • B32B38/164—Drying

Definitions

  • the invention relates to a laminating system for laminating a substrate with a laminating film, with a substrate feeding device, an adhesive application device, a laminating film feeding device, a laminating unit in which the supplied substrate provided with adhesive and the fed laminating film are connected to one another, and a roll-up device.
  • Laminates produced with such lamination systems are used in particular for the production of hygiene articles, foils for food packaging, construction foils, agricultural foils and other technical laminates.
  • Particularly suitable substrates for hygiene articles are nonwovens, but also woven or knitted flat structures and thin foam webs.
  • other substrates made of e.g. thermoplastics such as PE, CPP, etc. can also be used.
  • a laminating system of the type mentioned at the beginning is known, for example, from the document EP 2085218 B1.
  • a laminating method is known from the publication WO 2016/026918 A1, in which the laminating film consists of a thermoplastic and a surface of the laminating film is heated before it is joined to the substrate.
  • the required amount of adhesive can be reduced to a great extent.
  • One problem with this method is that the thermoplastic liner is deformed as a result of the heating and tensile load, so that precise joining is no longer possible.
  • the document DE 102017 119 576 A1 proposes a thermal laminating device with a cooled central drum for carrying out this method.
  • IR radiant heaters are provided around this drum to heat the surface of the thermoplastic liner. This makes it possible to cool the thermoplastic laminating film from one side and to heat it from the other side.
  • the laminating film remains in place on the drum during the entire lamination process and the associated heating and cooling, so that there is no risk of deformation of the thermoplastic laminating film at any time.
  • thermo laminating device For an economically attractive application of the method described above using the thermal laminating device described above with a central, cooled drum, it is important to integrate this device into existing and already developed Integrate laminating systems of the type mentioned at the outset and / or retrofit them accordingly. It is crucial for economic efficiency that both conventional laminates, in which no thermoplastics and / or a rather large amount of adhesive are used, as well as laminates without or only very little adhesive using a thermoplastic laminating film can be produced in one and the same laminating system .
  • the invention proposes, based on a laminating system of the type mentioned, in addition a thermal laminating device with a cooled central drum and IR radiant heaters arranged around the circumference of the drum, a substrate switch and a laminating film switch, the substrate via the substrate switch and the laminating film can either first be introduced into the thermal laminating device or directly into the laminating unit via the laminating film switch.
  • Switches e.g. substrate switch or laminating film switch
  • Switches are understood here to mean web guiding devices which make it possible to continue an incoming film web alternatively in a first or a second direction.
  • the laminating system developed according to the invention now makes it possible to produce both conventional laminates and thermal laminates with an ultra-thin adhesive layer in a single system.
  • the substrate switch and the laminating film switch can be used to set whether the substrate and the laminating film are fed directly to the laminating unit or whether they are first fed to the thermal lamination device and then fed into the laminating unit. This means that the thermal lamination device can also be attached to, integrated and retrofitted with existing laminating systems.
  • the switching of the switches can take place fully automatically or manually, with the switching states of the two switches being logically linked to one another.
  • the laminate feed device and the substrate feed device are equipped with materials that have the properties required for the desired laminate.
  • thermal lamination device with a cooled central drum and IR radiant heaters arranged around the circumference of the drum
  • a laminating film switch - to carry out a so-called retro fit and to expand the functional possibilities of an existing laminating system to an additional possibility, namely the implementation of a thermal lamination process with ultra-thin adhesive layers.
  • the dash-dot arrows represent the course of the substrate 100.
  • the course of a liner 200 made of a thermoplastic coating material is symbolized by the dashed arrows.
  • the joined laminate 300 is symbolized by the solid arrows between the respective functional units.
  • the individual rotation arrows indicate the direction of rotation of the respective functional units.
  • the individual functional units are:
  • a substrate feeding device containing a supply of substrate 100.
  • the material flow of the substrate 100 leads from this substrate supply device 1 to an adhesive application device 2.
  • an adhesive application device 2 a solvent-based adhesive is applied evenly to the substrate 100.
  • the substrate 100 then passes through a drying channel 3 in which the solvent is evaporated. If drying of the adhesive is not necessary, the drying channel 3 can be dispensed with without replacement in an exemplary embodiment according to the invention that is not shown here.
  • the substrate 100 is passed on to a laminating unit 4 and there joined with the laminating film 200 to form a laminate 300.
  • the laminating film 200 is fed to the laminating unit 4 by means of a laminating film feed device 5.
  • the finished laminated laminate 300 is led out of the laminating unit 4 and wound onto a roll-up device 6 as a finished product.
  • the laminating system - in addition to the prior art - is also provided with a thermal laminating device 7, a substrate switch 8 and a Kasch ierfolienweiche 9.
  • the substrate 100 and the laminating film 200 can either be fed directly into the laminating unit 4 or initially onto the thermal laminating device 7 via the two switches 8, 9.
  • the thermal laminating device 7 has a cooled central drum 10, around the circumference of which IR radiant heaters 11 are arranged.
  • the continuous thermoplastic laminating film 200 is fed from the laminating film feed device 5 to the surface of the drum 10 via the laminating film switch 9. Subsequently, the supplied lamination film 200 is guided by the rotating drum 9 past the IR radiant heaters 11, which are arranged approximately over half the circumference of the drum 10. In the process, the surface of the liner 200 facing the IR radiant heaters 11 heats up to above the melting temperature. In contrast, the surface of the lamination film 200 resting on the cooled drum 10 does not melt and remains intact. So that the liner 200 cannot move relative to the surface of the drum 10 on its way along the IR radiant heater 11, the liner 200 is attached to clips that are in the area of its side edges (not shown in the drawing) the drum 10 fixed.
  • the substrate 100 is fed to the thermal laminating device 7 and then pressed against the melted surface of the thermoplastic laminating film 200 resting on the drum 10 with the aid of a press roller arrangement 12.
  • the assembled laminate 300 is then passed through the lamination mechanism 4 and finally wound up on the winding device 6.
  • the laminating unit 4 can be operated without contact pressure during the last process described. However, this only makes sense if the fixing of the laminating film 200 on the substrate 100 in the area of the thermal laminating device 7 was already sufficient. Alternatively, it is also conceivable to feed the laminate 300 directly from the thermal lamination device 7 to the roll-up device 6.

Abstract

A laminating installation for laminating a substrate (100) with a laminating film (200), having a substrate feeding apparatus (1), having an adhesive-applying apparatus (2), having a drying channel (3), in which an adhesive applied to the substrate (100) can be dried, having a laminating-film feeding apparatus (5), having a laminating unit (4), in which the substrate (100) which has been fed, and provided with adhesive, and the laminating film (200) which has been fed are connected to one another, and having a rolling-up apparatus (6), characterized by - a thermal laminating apparatus (7) with a cooled central drum (10) and IR radiant heaters (11) arranged around the circumference of the drum (10), - a laminating-film diverter (9) and - a substrate diverter (8), wherein the laminating film (200), by way of the laminating-film diverter (9), and the substrate (100), by way of the substrate diverter (8), can be introduced either first into the thermal laminating apparatus (7) or directly into the laminating unit (4).

Description

Kaschieranlage Laminating system
Die Erfindung betrifft eine Kaschieranlage zum Kaschieren eines Substrates mit einer Kaschierfolie, mit einer Substratzuführungsvorrichtung, einer Klebstoffauftragsvorrichtung, einer Kaschierfolienzuführvorrichtung, einem Kaschierwerk, in dem das mit Klebstoff versehene zugeführte Substrat und die zugeführte Kaschierfolie miteinander verbunden werden, und einer Aufrollvorrichtung. The invention relates to a laminating system for laminating a substrate with a laminating film, with a substrate feeding device, an adhesive application device, a laminating film feeding device, a laminating unit in which the supplied substrate provided with adhesive and the fed laminating film are connected to one another, and a roll-up device.
Mit solchen Kaschieranlagen hergestellte Laminate werden insbesondere für die Anfertigung von Hygieneartikeln, Folien für die Lebensmittelverpackung, Baufolien, Agrarfolien und anderen technischen Laminaten eingesetzt. Als Substrate für Hygieneartikel kommen insbesondere Vliese, aber auch gewebte oder gewirkte Flächengebilde sowie dünne Schaumstoffbahnen infrage. Für andere Anwendungen können auch andere Substrate aus z.B. thermoplastischen Kunststoffen wie PE, CPP, etc., verwendet werden. Laminates produced with such lamination systems are used in particular for the production of hygiene articles, foils for food packaging, construction foils, agricultural foils and other technical laminates. Particularly suitable substrates for hygiene articles are nonwovens, but also woven or knitted flat structures and thin foam webs. For other applications, other substrates made of e.g. thermoplastics such as PE, CPP, etc. can also be used.
Eine Kaschieranlage der eingangs genannten Art ist beispielsweise aus der Druckschrift EP 2085218 B1 bekannt. Bei der dort beschriebenen Kaschieranlage ist es möglich, neben dem Substrat und der Kaschierfolie eine dritte Schicht bei der Herstellung des Laminats einzubringen. A laminating system of the type mentioned at the beginning is known, for example, from the document EP 2085218 B1. In the laminating system described there, it is possible to introduce a third layer in addition to the substrate and the laminating film during the production of the laminate.
Aus der Druckschrift WO 2016/026918 A1 ist ein Kaschierverfahren bekannt, bei dem die Kaschierfolie aus einem Thermoplast besteht und eine Oberfläche der Kaschierfolie vor dem Zusammenfügen mit dem Substrat erhitzt wird. Hierdurch kann die benötigte Menge an Klebstoff in großem Umfang reduziert werden. Ein Problem bei diesem Verfahren besteht darin, dass sich die thermoplastische Kaschierfolie durch die Erhitzung und Zugbelastung verformt, sodass ein präzises Zusammenfügen nicht mehr möglich ist. A laminating method is known from the publication WO 2016/026918 A1, in which the laminating film consists of a thermoplastic and a surface of the laminating film is heated before it is joined to the substrate. As a result, the required amount of adhesive can be reduced to a great extent. One problem with this method is that the thermoplastic liner is deformed as a result of the heating and tensile load, so that precise joining is no longer possible.
Um diese Verformungen zu vermeiden, schlägt die Druckschrift DE 102017 119 576 A1 zur Durchführung dieses Verfahrens eine Thermo- Laminiervorrichtung mit einer gekühlten zentralen Trommel vor. Um diese Trommel herum sind IR-Heizstrahler zur Erhitzung der Oberfläche der thermoplastischen Kaschierfolie vorgesehen. Hierdurch ist es möglich, die thermoplastische Kaschierfolie von einer Seite her zu kühlen und von der anderen Seite her zu erhitzen. Zudem verbleibt die Kaschierfolie während des gesamten Laminiervorganges und der dazugehörigen Erhitzung und Kühlung ortsfest an der Trommel anliegend, sodass zu keiner Zeit die Gefahr einer Verformung der thermoplastischen Kaschierfolie besteht. In order to avoid these deformations, the document DE 102017 119 576 A1 proposes a thermal laminating device with a cooled central drum for carrying out this method. IR radiant heaters are provided around this drum to heat the surface of the thermoplastic liner. This makes it possible to cool the thermoplastic laminating film from one side and to heat it from the other side. In addition, the laminating film remains in place on the drum during the entire lamination process and the associated heating and cooling, so that there is no risk of deformation of the thermoplastic laminating film at any time.
Für eine wirtschaftlich attraktive Anwendung des zuvor beschriebenen Verfahrens unter Verwendung der zuvor beschriebenen Thermo- Laminiervorrichtung mit einer zentralen gekühlten Trommel, ist es wichtig, diese Vorrichtung in bestehende und bereits durchentwickelte Kaschieranlagen der eingangs genannten Art zu integrieren und/oder diese entsprechend nachzurüsten. Entscheidend für die Wirtschaftlichkeit ist es dabei, dass sowohl herkömmliche Laminate, bei denen keine Thermoplaste und/oder eine eher große Klebstoffmenge verwendet werden, als auch Laminate ohne bzw. nur sehr wenig Klebstoff unter Verwendung einer thermoplastischen Kaschierfolie in ein und derselben Kaschieranlage hergestellt werden können. For an economically attractive application of the method described above using the thermal laminating device described above with a central, cooled drum, it is important to integrate this device into existing and already developed Integrate laminating systems of the type mentioned at the outset and / or retrofit them accordingly. It is crucial for economic efficiency that both conventional laminates, in which no thermoplastics and / or a rather large amount of adhesive are used, as well as laminates without or only very little adhesive using a thermoplastic laminating film can be produced in one and the same laminating system .
Es ist deshalb Aufgabe der Erfindung, die Kaschieranlage der eingangs genannten Art dahingehend weiterzubilden, dass sowohl Laminate, bei denen keine Thermoplaste und/oder eher eine hohe Klebstoffmenge verwendet werden, als auch Laminate, bei denen nur sehr wenig Klebstoff und mindestens eine thermoplastische Kaschierfolie verwendet werden, zusätzlich, sicher und in hoher Qualität in ein und derselben Kaschieranlage hergestellt werden können. It is therefore the object of the invention to further develop the laminating system of the type mentioned at the outset so that both laminates in which no thermoplastics and / or rather a large amount of adhesive are used and laminates in which only very little adhesive and at least one thermoplastic laminating film are used can also be produced safely and in high quality in one and the same laminating system.
Zur Lösung dieser Aufgabe schlägt die Erfindung ausgehend von einer Kaschieranlage der eingangs genannten Art zusätzlich eine Thermo-Laminiervorichtung mit einer gekühlten zentralen Trommel und um den Umfang der Trommel angeordneten IR-Heizstrahlern, eine Substratweiche und eine Kaschierfolienweiche vor, wobei das Substrat über die Substratweiche und die Kaschierfolie über die Kaschierfolienweiche entweder erst in die Thermo-Laminiervorrichtung oder direkt in das Kaschierwerk einführbar sind. To solve this problem, the invention proposes, based on a laminating system of the type mentioned, in addition a thermal laminating device with a cooled central drum and IR radiant heaters arranged around the circumference of the drum, a substrate switch and a laminating film switch, the substrate via the substrate switch and the laminating film can either first be introduced into the thermal laminating device or directly into the laminating unit via the laminating film switch.
Unter Weichen (z. B. Substratweiche oder Kaschierfolienweiche)werden hier Bahnführungsvorrichtungen verstanden, die es ermöglichen, eine ankommende Folienbahn alternativ in einer ersten oder einer zweiten Richtung weiterzuführen. Switches (e.g. substrate switch or laminating film switch) are understood here to mean web guiding devices which make it possible to continue an incoming film web alternatively in a first or a second direction.
Durch die erfindungsgemäß weitergebildete Kaschieranlage ist es nun möglich, in einer einzigen Anlage sowohl herkömmliche Laminate als auch Thermo-Laminate mit ultradünner Klebstoffschicht herzustellen. Über die Substratweiche und die Kaschierfolienweiche kann eingestellt werden, ob das Substrat und die Kaschierfolie direkt dem Kaschierwerk zugeführt werden oder erst auf die Thermo-Laminiervorrichtung geleitet werden und dann anschließend ins Kaschierwerk geführt werden. Somit kann die Thermo-Laminiervorrichtung auch an bestehenden Kaschieranlagen angebaut, integriert und nachgerüstet werden. The laminating system developed according to the invention now makes it possible to produce both conventional laminates and thermal laminates with an ultra-thin adhesive layer in a single system. The substrate switch and the laminating film switch can be used to set whether the substrate and the laminating film are fed directly to the laminating unit or whether they are first fed to the thermal lamination device and then fed into the laminating unit. This means that the thermal lamination device can also be attached to, integrated and retrofitted with existing laminating systems.
Die Umschaltung der Weichen kann hierbei vollautomatisch oder manuell erfolgen, wobei die Schaltzustände der beiden Weichen logisch miteinander gekoppelt sind. Je nachdem, welches Laminat mit der Maschine hergestellt werden soll, werden die Kaschierfolienzuführungsvorichtung und die Substratzuführungsvorrichtung mit Materialen bestückt, die die für das gewünschte Laminat notwendigen Eigenschaften haben. Es ergibt sich somit die Möglichkeit, an bestehenden, im Einsatz befindlichen Kaschieranlagen mittels eines Nachrüstsatzes, umfassend The switching of the switches can take place fully automatically or manually, with the switching states of the two switches being logically linked to one another. Depending on which laminate is to be produced with the machine, the laminate feed device and the substrate feed device are equipped with materials that have the properties required for the desired laminate. There is thus the possibility of extensively using a retrofit kit on existing laminating systems that are in use
- eine Thermo-Laminiervorrichtung mit einer gekühlten zentralen Trommel und um den Umfang der Trommel angeordneten IR-Heizstrahlern, - a thermal lamination device with a cooled central drum and IR radiant heaters arranged around the circumference of the drum,
- eine Substratweiche und - a substrate switch and
-eine Kaschierfolienweiche - , ein sogenanntes Retro-Fit durchzuführen und die Funktionsmöglichkeiten einer bestehenden Kaschieranlage auf eine zusätzliche Möglichkeit, nämlich die Durchführung eines Thermo- Laminierverfahrens mit ultradünnen Klebstoffschichten zu erweitern. - a laminating film switch - to carry out a so-called retro fit and to expand the functional possibilities of an existing laminating system to an additional possibility, namely the implementation of a thermal lamination process with ultra-thin adhesive layers.
Im Folgenden wird die Erfindung anhand der Zeichnung näher erläutert: The invention is explained in more detail below with reference to the drawing:
In Figur 1 der Zeichnung sind der prinzipielle Aufbau einer erfindungsgemäßen Kaschieranlage sowie der Materiallauf in dieser Kaschieranlage schematisch dargestellt. In Figure 1 of the drawing, the basic structure of a laminating system according to the invention and the material flow in this laminating system are shown schematically.
Die Strichpunkt-Pfeile stellen dabei den Lauf des Substrates 100 dar. Der Lauf einer Kaschierfolie 200 aus einem thermoplastischen Beschichtungsmaterial wird durch die gestrichelten Pfeile symbolisiert. Das zusammengefügte Laminat 300 wird durch die durchgezogenen Pfeile zwischen den jeweiligen Funktionseinheiten symbolisiert. Die einzelnen Drehpfeile zeigen die Drehrichtung der jeweiligen Funktionseinheiten an. The dash-dot arrows represent the course of the substrate 100. The course of a liner 200 made of a thermoplastic coating material is symbolized by the dashed arrows. The joined laminate 300 is symbolized by the solid arrows between the respective functional units. The individual rotation arrows indicate the direction of rotation of the respective functional units.
Die einzelnen Funktionseinheiten sind: The individual functional units are:
Eine mit dem Bezugszeichen 1 bezeichnete, einen Vorrat an Substrat 100 enthaltende Substratzuführungsvorrichtung. Der Materiallauf des Substrates 100 führt von dieser Substratzuführungsvorrichtung 1 zu einer Klebstoffauftragsvorrichtung 2. In dieser Klebstoffauftragsvorrichtung 2 wird ein lösemittelhaltiger Klebstoff gleichmäßig auf das Substrat 100 aufgetragen. Danach durchläuft das Substrat 100 einen Trocknungskanal 3, in welchem das Lösemittel abgedampft wird. Sofern eine Trocknung des Klebstoffs nicht notwendig, kann in einem hier nichtdargestellten erfindungsgemäßen Ausführungsbeispiel auf den Trocknungskanal 3 ersatzlos verzichtet werden. In Kaschieranlagen nach dem Stand der Technik wird das Substrat 100 nachdem der Klebstoff aufgetragen und ggf. im Trocknungskanal 3 getrocknet wurde, weiter zu einem Kaschierwerk 4 geführt und dort mit der Kaschierfolie 200 zu einem Laminat 300 zusammengefügt. Dabei wird die Kaschierfolie 200 dem Kaschierwerk 4 mittels einer Kaschierfolienzuführvorrichtung 5 zugeführt. Am Ende wird das fertig kaschierte Laminat 300 aus dem Kaschierwerk 4 herausgeführt und als fertiges Produkt auf eine Aufrollvorrichtung 6 aufgewickelt. A substrate feeding device, denoted by the reference numeral 1, containing a supply of substrate 100. The material flow of the substrate 100 leads from this substrate supply device 1 to an adhesive application device 2. In this adhesive application device 2, a solvent-based adhesive is applied evenly to the substrate 100. The substrate 100 then passes through a drying channel 3 in which the solvent is evaporated. If drying of the adhesive is not necessary, the drying channel 3 can be dispensed with without replacement in an exemplary embodiment according to the invention that is not shown here. In laminating systems according to the prior art, after the adhesive has been applied and, if necessary, dried in the drying channel 3, the substrate 100 is passed on to a laminating unit 4 and there joined with the laminating film 200 to form a laminate 300. In this case, the laminating film 200 is fed to the laminating unit 4 by means of a laminating film feed device 5. At the end, the finished laminated laminate 300 is led out of the laminating unit 4 and wound onto a roll-up device 6 as a finished product.
Nach der Lehre der Erfindung ist die Kaschieranlage - zusätzlich zum Stand der Technik - weiterhin mit einer Thermo-Laminiervorichtung 7, einer Substratweiche 8 und einer Kasch ierfolienweiche 9 versehen. Über die beiden Weichen 8,9 können das Substrat 100 und die Kaschierfolie 200 entweder direkt in das Kaschierwerk 4 oder zunächst auf die Thermo- Laminiervorichtung 7 geleitet werden. According to the teaching of the invention, the laminating system - in addition to the prior art - is also provided with a thermal laminating device 7, a substrate switch 8 and a Kasch ierfolienweiche 9. The substrate 100 and the laminating film 200 can either be fed directly into the laminating unit 4 or initially onto the thermal laminating device 7 via the two switches 8, 9.
Die Thermo-Laminiervorichtung 7 weist eine gekühlte zentrale Trommel 10 auf, um deren Umfang IR-Heizstrahler 11 angeordnet sind. Von der Kaschierfolienzuführvorrichtung 5 wird der Oberfläche der Trommel 10 die durchlaufende thermoplastische Kaschierfolie 200 über die Kaschierfolienweiche 9 zugeführt. Anschließend wird die zugeführte Kaschierfolie 200 von der sich drehenden Trommel 9 an den IR-Heizstrahlern 11 , die etwa über den halben Umfang der Trommel 10 angeordnet sind, vorbeigeführt. Dabei erwärmt sich die den IR-Heizstrahlern 11 zugewandte Oberfläche der Kaschierfolie 200 bis über die Schmelztemperatur. Die an der gekühlten Trommel 10 anliegende Oberfläche der Kaschierfolie 200 schmilzt demgegenüber nicht und bleibt intakt. Damit die Kaschierfolie 200 auf ihrem Weg entlang der IR-Heizstrahler 11 sich relativ zur Oberfläche der Trommel 10 nicht verschieben kann, wird die Kaschierfolie 200 auf diesem Weg von Kluppen, die sich im Bereich ihrer Seitenränder befinden (in der Zeichnung nicht dargestellt), an der Trommel 10 fixiert. The thermal laminating device 7 has a cooled central drum 10, around the circumference of which IR radiant heaters 11 are arranged. The continuous thermoplastic laminating film 200 is fed from the laminating film feed device 5 to the surface of the drum 10 via the laminating film switch 9. Subsequently, the supplied lamination film 200 is guided by the rotating drum 9 past the IR radiant heaters 11, which are arranged approximately over half the circumference of the drum 10. In the process, the surface of the liner 200 facing the IR radiant heaters 11 heats up to above the melting temperature. In contrast, the surface of the lamination film 200 resting on the cooled drum 10 does not melt and remains intact. So that the liner 200 cannot move relative to the surface of the drum 10 on its way along the IR radiant heater 11, the liner 200 is attached to clips that are in the area of its side edges (not shown in the drawing) the drum 10 fixed.
Hinter dem letzten IR-Heizstrahler 11 wird der Thermo-Laminiervorichtung 7 das Substrat 100 zugeführt und danach mithilfe einer Pressrollenanordnung 12 gegen die angeschmolzene Oberfläche der auf der Trommel 10 aufliegenden thermoplastischen Kaschierfolie 200 angepresst. Anschließend wird das zusammengefügte Laminat 300 durch das Kaschierwerk 4 geführt und abschließend auf der Aufrollvorrichtung 6 aufgewickelt. Behind the last IR radiant heater 11, the substrate 100 is fed to the thermal laminating device 7 and then pressed against the melted surface of the thermoplastic laminating film 200 resting on the drum 10 with the aid of a press roller arrangement 12. The assembled laminate 300 is then passed through the lamination mechanism 4 and finally wound up on the winding device 6.
Gegebenenfalls kann bei dem zuletzt geschilderten Vorgang das Kaschierwerk 4 ohne Anpressdruck gefahren werden. Das ist allerdings nur sinnvoll, wenn die Fixierung der Kaschierfolie 200 auf dem Substrat 100 im Bereich der Thermo-Laminiervorrichtung 7 bereits ausreichend war. Alternativ ist es auch denkbar, das Laminat 300 direkt von der Thermo-Laminiervorrichtung 7 der Aufrollvorrichtung 6 zuzuführen. If necessary, the laminating unit 4 can be operated without contact pressure during the last process described. However, this only makes sense if the fixing of the laminating film 200 on the substrate 100 in the area of the thermal laminating device 7 was already sufficient. Alternatively, it is also conceivable to feed the laminate 300 directly from the thermal lamination device 7 to the roll-up device 6.
Bezugszeichenliste: List of reference symbols:
1 Substratzuführungsvorrichtung1 substrate feeding device
2 Klebstoffauftragsvorrichtung2 glue applicator
3 Trocknungskanal 3 drying tunnel
4 Kaschierwerk 4 laminating unit
5 Kaschierfolienzuführvorrichtung5 Laminating Foil Feeding Device
6 Aufrollvorrichtung 6 Roll-up device
7 Thermo-Laminiervorrichtung7 Thermal laminating device
8 Substratweiche 8 substrate soak
9 Kaschierfolienweiche 9 liner switch
10 Trommel 10 drum
11 IR-Heizstrahler 11 IR radiant heaters
12 Pressrollenanordnung 12 Press roller arrangement
100 Substrat 100 substrate
200 Kaschierfolie 200 liner
300 Laminat 300 laminate

Claims

Patentansprüche: Patent claims:
1. Kaschieranlage zum Kaschieren eines Substrates (100) mit einer Kaschierfolie (200), mit einer Substratzuführungsvorrichtung (1), einer Klebstoffauftragsvorrichtung (2), einem Trocknungskanal (3), in welchem ein auf das Substrat (100) aufgetragener Klebstoff antrockenbar ist, einer Kaschierfolienzuführvorrichtung (5), einem Kaschierwerk (4), in welchem das mit Klebstoff versehene zugeführte Substrat (100) und die zugeführte Kaschierfolie (200) miteinander verbunden werden, und einer Aufrollvorrichtung (6), g e k e n n z e i c h n e t d u r c h 1. Laminating system for laminating a substrate (100) with a laminating film (200), with a substrate feeding device (1), an adhesive application device (2), a drying channel (3) in which an adhesive applied to the substrate (100) can be dried, a laminating film feed device (5), a laminating unit (4) in which the supplied substrate (100) provided with adhesive and the fed laminating film (200) are connected to one another, and a roll-up device (6), characterized by
- eine Thermo-Laminiervorichtung (7) mit einer gekühlten zentralen Trommel (10) und um den- A thermal laminating device (7) with a cooled central drum (10) and around the
Umfang der Trommel (10) angeordneten IR-Heizstrahlern (11), Circumference of the drum (10) arranged IR radiant heaters (11),
- eine Kaschierfolienweiche (9) und - a laminating film switch (9) and
-eine Substratweiche (8), wobei die Kaschierfolie (200) über die Kaschierfolienweiche (9) und das Substrat (100) über die Substratweiche (8) entweder erst in die Thermo-Laminiervorrichtung (7) oder direkt in das-a substrate switch (8), the liner (200) via the liner switch (9) and the substrate (100) via the substrate switch (8) either first into the thermal laminating device (7) or directly into the
Kaschierwerk (4) einführbar sind. Laminating mechanism (4) can be introduced.
2. Kaschieranlage nach Anspruch 1 , dadurch gekennzeichnet, dass die Schaltzustände der Substratweiche (8) und der Kaschierfolienweiche (9) logisch miteinander verknüpft sind. 2. Laminating system according to claim 1, characterized in that the switching states of the substrate switch (8) and the laminating film switch (9) are logically linked to one another.
3. Kaschieranlage nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Kaschierfolienzuführungsvorrichtung (5) wahlweise mit einer thermoplastischen, einer duroplastischen oder einer elastomeren Kaschierfolie (200) bestückbar ist. 3. Laminating system according to claim 1 or 2, characterized in that the laminating film feed device (5) can optionally be equipped with a thermoplastic, a thermosetting or an elastomeric laminating film (200).
4. Kaschieranlage nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass zwischen der Klebstoffauftragsvorrichtung (2) und der Substratweiche (8) ein Trocknungskanal (3) angeordnet ist, in welchem der auf das Substrat (100) aufgetragener Klebstoff antrockenbar ist. 4. Laminating system according to one of claims 1 to 3, characterized in that a drying channel (3) is arranged between the adhesive application device (2) and the substrate switch (8), in which the adhesive applied to the substrate (100) can be dried.
5. Nachrüstsatz für die Nachrüstung einer Kaschieranlage zur Durchführung eines Laminierverfahrens mit ultradünnen Klebstoffschichten aufweisend eine Thermo- Laminiervorrichtung (7) mit einer gekühlten zentralen Trommel (10) und um den Umfang der Trommel (10) angeordneten IR-Heizstrahlern (11), eine Kaschierfolienweiche (9) und eine Substratweiche (8). 5. Retrofit kit for retrofitting a lamination system to carry out a lamination process with ultra-thin adhesive layers having a thermal Laminating device (7) with a cooled central drum (10) and IR radiant heaters (11) arranged around the circumference of the drum (10), a laminating film switch (9) and a substrate switch (8).
PCT/EP2021/060882 2020-05-05 2021-04-27 Laminating installation WO2021224050A1 (en)

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DE202020102523.6U DE202020102523U1 (en) 2020-05-05 2020-05-05 Laminating line

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EP3981599B1 (en) * 2020-10-09 2023-12-13 Henkel AG & Co. KGaA Device and method for laminating a substrate with a thermoplastic film
EP3981598B1 (en) * 2020-10-09 2023-12-13 Henkel AG & Co. KGaA Device and method for laminating a substrate with a thermoplastic film

Citations (4)

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Publication number Priority date Publication date Assignee Title
EP2085218B1 (en) 2008-01-30 2014-09-03 NORDMECCANICA S.p.A. Machine for bonding films made of different materials and the corresponding method
WO2016026918A1 (en) 2014-08-21 2016-02-25 Henkel Ag & Co. Kgaa Method for adhesively bonding two sheet-like substrates
DE202017006956U1 (en) * 2017-08-25 2019-02-26 Klomfass Gierlings & Partner GbR (vertretungsberechtigter Gesellschafter: Michael Gierlings 40723 Hilden) Device for laminating a substrate with a thermoplastic coating material
US20190083999A1 (en) * 2016-04-07 2019-03-21 Think Laboratory Co., Ltd. Inkjet printing-lamination inline system and method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2085218B1 (en) 2008-01-30 2014-09-03 NORDMECCANICA S.p.A. Machine for bonding films made of different materials and the corresponding method
WO2016026918A1 (en) 2014-08-21 2016-02-25 Henkel Ag & Co. Kgaa Method for adhesively bonding two sheet-like substrates
US20190083999A1 (en) * 2016-04-07 2019-03-21 Think Laboratory Co., Ltd. Inkjet printing-lamination inline system and method
DE202017006956U1 (en) * 2017-08-25 2019-02-26 Klomfass Gierlings & Partner GbR (vertretungsberechtigter Gesellschafter: Michael Gierlings 40723 Hilden) Device for laminating a substrate with a thermoplastic coating material
DE102017119576A1 (en) 2017-08-25 2019-02-28 Klomfass Gierlings & Partner GbR (vertretungsberechtigter Gesellschafter Michael Gierlings, 40723 Hilden) Device for laminating a substrate with a thermoplastic coating material

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