EP3840945A1 - Multilayer composite film made of plastic - Google Patents

Multilayer composite film made of plastic

Info

Publication number
EP3840945A1
EP3840945A1 EP19739988.4A EP19739988A EP3840945A1 EP 3840945 A1 EP3840945 A1 EP 3840945A1 EP 19739988 A EP19739988 A EP 19739988A EP 3840945 A1 EP3840945 A1 EP 3840945A1
Authority
EP
European Patent Office
Prior art keywords
layer
translucent
composite film
opaque
openings
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP19739988.4A
Other languages
German (de)
French (fr)
Inventor
Maik THIEL
Martin Köhl
Doreen HERZOG
Karl Buchkremer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Benecke Kaliko AG
Original Assignee
Benecke Kaliko AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Benecke Kaliko AG filed Critical Benecke Kaliko AG
Publication of EP3840945A1 publication Critical patent/EP3840945A1/en
Pending legal-status Critical Current

Links

Classifications

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    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • D—TEXTILES; PAPER
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    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
    • D06N3/0065—Organic pigments, e.g. dyes, brighteners
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    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
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    • B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
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    • B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
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    • B32B5/245—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it being a foam layer
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    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
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    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
    • D06N3/0063—Inorganic compounding ingredients, e.g. metals, carbon fibres, Na2CO3, metal layers; Post-treatment with inorganic compounds
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
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    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0086—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0086—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique
    • D06N3/0095—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by inversion technique; by transfer processes
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
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    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/04—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06N3/06—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds with polyvinylchloride or its copolymerisation products
    • D—TEXTILES; PAPER
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    • D06N7/00—Flexible sheet materials not otherwise provided for, e.g. textile threads, filaments, yarns or tow, glued on macromolecular material
    • D06N7/0092—Non-continuous polymer coating on the fibrous substrate, e.g. plastic dots on fabrics
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2211/00—Specially adapted uses
    • D06N2211/12—Decorative or sun protection articles
    • D06N2211/26—Vehicles, transportation
    • D06N2211/261—Body finishing, e.g. headliners
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2213/00—Others characteristics
    • D06N2213/04—Perforated layer

Definitions

  • the invention relates to a multilayer plastic film as
  • the composite film being at least partially, i.e. is translucent in parts of its surface and has at least one outer translucent cover layer, optionally provided with a translucent varnish, and on the back of the cover layer one or more further translucent plastic layers and a translucent carrier layer, an opaque, i.e. opaque layer is arranged, which as a flat and with
  • the invention also relates to a method for producing such a film and to a particular use.
  • Films in the form of multilayer composite films for coating or as surfaces of any objects are comprehensively known in the prior art, including the surface design of furniture and interior trim parts of vehicles, in particular motor vehicles.
  • grained, patterned or finely structured plastic skins are used as surfaces for the interior cladding, here often as relatively soft foamed foils with a pleasant feel, for example for the cladding of dashboards or the inner shells of doors etc.
  • These are adapted accordingly in terms of strength and design Films are of course also used for other high-quality coated goods.
  • Films for the interior cladding of motor vehicles, for furniture, bags etc. also commonly referred to as synthetic leather, often have a multi-layer structure and are often foamed and show three-dimensional structured surfaces in various shapes and designs on their top.
  • the multi-layer structure usually consists of an upper cover or decorative layer, which is provided with the embossed or molded surface, and one or more lower layers.
  • the top layer is usually provided with a lacquer layer and can also be colored. Appropriate adjustment of the layers, also through adapted softness or through the already mentioned foamed layers, creates an appealing haptic, ie a pleasant “soft” grip of the plastic film and also a certain gloss.
  • CA 2 454 911 A1 discloses a vehicle headlining as a molded part, which has strip-shaped electroluminescent elements
  • the vehicle headlining consists of a shaped carrier that is pressed into a component with a coating film. Electroluminescent elements are initially positioned in the carrier with their connecting cables through guided the carrier and then covered, fixed and pressed with the applied coating film. However, this requires a relatively complicated construction. In addition, the electroluminescent elements can also behind this
  • the decor surface / coating film become visible as bulges.
  • DE 10 2005 038 680 A1 discloses a component of a motor vehicle with a three-dimensional surface which has an electroluminescent layer and is injection molded with thermoplastic to fix the component shape. This means that essentially smaller, non-flexible luminous elements, such as, for. B. illuminated pushbuttons or lamps. The production of larger parts is rather difficult with this training.
  • DE 10 2015 101 331 A1 discloses a synthetic leather arranged on a textile carrier material in the form of a composite film, which has a translucent layer structure and has a permeability to visible light in a range of 0.4-60%. Within the surface coating of this composite film or within the
  • Layer structure is a so-called color structure, which causes a reduction in light transmission where it is arranged.
  • color structure which causes a reduction in light transmission where it is arranged.
  • This color structure can always be seen or only when the artificial leather is illuminated.
  • DE 10 2010 051 166 A1 discloses a method for producing a material with an opaque surface with a graphic, a logo or an animation visible on the surface when illuminated from the rear.
  • the graphic as such is translucent on a film and the interspaces are kept or designed opaque and then a translucent layer is applied.
  • the object of the invention was therefore to provide a film for the surface coating of objects, which has a functionalization in the form of a
  • the opaque layer directly adjoins the back layer in the direction of the carrier layer, the base material of the opaque layer being the same as that of the cover layer, that is to say the base material of the cover layer.
  • the basic material here is essentially the plastic material of the layers which is present in large proportions and which, of course, can contain various additives for setting the further material properties.
  • the opaque layer which is in the form of a flat mask or screen provided with openings, directly adjoins the cover layer, which means that one
  • the covering layer, or the coating is so small that there is no significant diffusion.
  • the image created by the aperture or masking on the surface of the cover layer is therefore very clear and sharply demarcated. This advantageous effect is supported by the fact that the top layer and the
  • Masking or aperture formed opaque layer have the same base material. This results in the same behavior of the two layers, for example under mechanical loads or under the influence of temperature.
  • a multilayer composite film in which these two layers from the same
  • Base material can therefore easily be stretched or mounted on molded parts without the clarity of the representations of the images created by the aperture or masking suffers. It is also advantageous if the back carrier layer is a textile carrier layer. Such a textile backing layer turns the laminated film into an artificial leather that can be sewn without problems, namely like a natural leather.
  • the opaque layer has a pigmentation and viscosity that differs from the pigmentation and viscosity of the cover layer. What is meant here is a distinction both in the number and in the type or color of the pigments.
  • the adaptation can be carried out in such a way that both the intensity of the light passing through and its color can be influenced, for example by adding different and possibly color-interacting color pigments.
  • a further advantageous embodiment is that the translucent cover layer, the translucent plastic layers, the carrier layer and the opaque layer have such a pigmentation that, when incident light is applied to the composite film, a uniform and opaque color impression is produced from the surface of the composite film, that is to say that the patterns or openings of the mask or aperture are not visible on the surface.
  • the outlines of the openings in the opaque layer on the surface of the composite film can only be recognized when there is backlighting, that is to say when the image is illuminated. This can also be achieved by adding pigments that differ in number and type or pigments that interact in terms of color (color pigments) in the material of the respective layers.
  • Multilayer composite film results from the fact that a light-emitting or conductive layer is formed below the opaque layer in the direction of the carrier layer.
  • an electroluminescent layer which can be activated via electrodes. This saves separate illuminants arranged below the entire layer composite.
  • Such a light-emitting layer can also be formed such that a layer is arranged within the layer composite, for example an optical layer made of PET or PET fibers, which is illuminated laterally and diffusely distributes the incident light over a surface area of the layer composite.
  • a layer is arranged within the layer composite, for example an optical layer made of PET or PET fibers, which is illuminated laterally and diffusely distributes the incident light over a surface area of the layer composite.
  • Multi-layer composite film is that the production in one
  • the reverse sweep procedure is carried out with the following steps: Applying a top coat forming the cover layer from a preferably pasty plastic material to a carrier film,
  • a surface structure of the film composite can then be formed either by a grained carrier film which contains the negative of the grain and to which the cover layer is applied, or by embossing after the film has been produced.
  • the opaque layer in particular can be shaped, i.e. here in particular with respect to the masking or mask with its openings are applied length-wise and area-wise, since the application is carried out on the top layer stably supported with a backing film, possibly lying on a base, a spreading table or also on the stretched backing film.
  • the masking does not have to be applied to a soft layer composite, which may deform and then represent an unstable surface.
  • the length and area fidelity of the masking are supported by an advantageous development of the method in which the mask line forming the opaque layer is applied to the cover layer in a printing process,
  • Reverse coating processes can make it much easier to apply the opaque layer to the top layer, especially if it is applied using a printing process.
  • the viscosity of the opaque layer is then adjusted so that it is set correctly for the printing process used.
  • the viscosity of the top layer can be set higher or lower than the viscosity of the opaque layer.
  • a further advantageous embodiment of the method is that both top coat and mask coat are applied in the form of a paste made of pasty polyvinyl chloride (plastisol).
  • plastisol pasty polyvinyl chloride
  • the multilayer composite film according to the invention can be used in particular as a coating for an interior trim part for a motor vehicle.
  • the multilayer composite film according to the invention is ideally suited for this purpose and, even after being applied to a shaped structural part, has no deficiencies in the clarity of the illustrations or in the images produced by the screen or masking.
  • the invention will be explained in more detail using an exemplary embodiment.
  • FIG. 1 shows schematically in the upper part an enlarged view of a partial area of a multilayer composite film 1 according to the invention for a
  • the interior trim part has an outer layer 3 of a polyvinyl chloride (PVC) provided with an outer transparent lacquer layer 2.
  • PVC polyvinyl chloride
  • the cover layer 3 is in turn also translucent, namely only about 30% colored with pigments and thus allows a certain percentage of the light striking its rear side to pass through.
  • opaque layer 4 is arranged, which is designed as a flat and provided with a masking or diaphragm and is only translucent in the openings 8 of the masking or diaphragm.
  • the opaque layer 4 adjoins the carrier layer 7 directly
  • the base material of the opaque layer 4 consists of PVC and is the same as that of the cover layer 3.
  • a number of further translucent plastic layers are arranged below the opaque layer 4, namely a translucent / translucent plastic foam layer 5 and a translucent adhesive layer 6.
  • a translucent textile carrier layer 7 follows at the bottom, so that the multilayer composite film can be easily processed and sewn like an artificial leather.
  • a clear and sharply cut image 8 'of the openings 8 contained in the masking panel is formed on the outer surface of the top layer 3, or the lacquer layer 2, here in the form, for example a symbol for a battery charge, as shown by the section of a top view of the multilayer composite film according to the invention shown in the upper part of FIG. LIST OF REFERENCE NUMBERS

Abstract

The invention relates to a multilayer composite film made of plastic as a surface coating for an object, which composite film is at least partially light-permeable, i.e. in some portions, and comprises at least one outer light-permeable cover layer, optionally provided with a light-permeable lacquer, and also comprises, on the rear face of the cover layer, one or more additional light-permeable plastic layers and a light-permeable backing layer. An opaque layer, which is designed as a planar mask or screen provided with openings and is only light-permeable in the openings in the mask or screen, is arranged within the layer composite. The opaque layer adjoins the rear face of the cover layer in the direction of the support layer. The base material of the opaque layer is the same as that of the cover layer.

Description

Beschreibung  description
Mehrschichtverbundfolie aus Kunststoff Multi-layer composite film made of plastic
Die Erfindung betrifft eine Mehrschichtverbundfolie aus Kunststoff als The invention relates to a multilayer plastic film as
Oberflächenbeschichtung eines Gegenstands, wobei die Verbundfolie mindestens partiell, d.h. in Teilbereichen ihrer Oberfläche lichtdurchlässig ist und mindestens eine äußere, ggf. mit einer lichtdurchlässigen Lackierung versehene lichtdurchlässige Deckschicht und rückseitig der Deckschicht eine oder mehrere weitere lichtdurchlässige Kunststoffschichten sowie eine lichtdurchlässige Trägerschicht aufweist, wobei innerhalb des Schichtverbunds eine opake, d.h. lichtundurchlässige Schicht angeordnet ist, die als flächige und mitSurface coating of an object, the composite film being at least partially, i.e. is translucent in parts of its surface and has at least one outer translucent cover layer, optionally provided with a translucent varnish, and on the back of the cover layer one or more further translucent plastic layers and a translucent carrier layer, an opaque, i.e. opaque layer is arranged, which as a flat and with
Öffnungen versehene Maskierung oder Blende ausgebildet und lediglich in den Öffnungen der Maskierung oder Blende lichtdurchlässig ist. Ebenfalls betrifft die Erfindung ein Verfahren zur Herstellung einer solchen Folie sowie eine besondere Verwendung. Folien in Form von mehrschichtige Verbundfolien zur Beschichtung bzw. als Oberflächen von jedweden Gegenständen sind im Stand der Technik umfassend bekannt, so auch bei der Oberflächengestaltung von Möbeln und bei Innenverkleidungsteilen von Fahrzeugen, insbesondere von Kraftfahrzeugen. Bei letzteren werden genarbte, gemusterte, oder fein strukturiert Kunststoffhäute als Oberflächen für die Innenverkleidung eingesetzt, hier oft als relativ weiche unterschäumte Folien mit angenehmer Haptik etwa für die Verkleidung von Armaturenbrettern oder die Innenschalen von Türen etc. In entsprechender Anpassung von Festigkeit und Design werden solche Folien natürlich auch für andere hochwertig beschichtete Waren genutzt. Folien für die Innenverkleidung von Kraftfahrzeugen, für Möbel, Taschen etc., landläufig auch als Kunstleder bezeichnet, besitzen oft einen mehrschichtigen Aufbau, sind oft unterschäumt und zeigen auf ihrer Oberseite dreidimensional strukturierte Oberflächen in verschiedensten Formen und Ausführungen. Der mehrschichtige Aufbau besteht in aller Regel aus einer oberen Deck- oder Dekorschicht, die mit der geprägten oder eingeformten Oberfläche versehen ist, und aus einer oder mehreren Unterschichten. Die Deckschicht ist in der Regel mit einer Lackschicht versehen und kann auch eingefärbt werden. Durch entsprechendes Einstellen der Schichten, auch durch angepasste Weichheit oder durch die bereits genannten geschäumten Schichten entsteht eine ansprechende Haptik, d.h. eine angenehm„weiche“ Griffigkeit der Kunststofffolie sowie auch ein bestimmter Glanz Im Stand der Technik sind zur Herstellung solcher Kunststoffhäute verschiedene Verfahren bekannt, zum Beispiel Walz- und/oder Prägeverfahren zur Herstellung von„endlosen“ Folienbahnen aus thermoplastischem Kunststoff, oder Verfahren zur Herstellung von werkzeugfallenden einzelnen Formhäuten, also von Kunststoff-Formteilen. Der zum Beispiel im Bereich der Fahrzeugausrüstungen immer mehr zunehmende Bedarf an Komforteinrichtungen führt nicht nur in diesen Bereichen dazu, dass der Wunsch nach immer stärkerer Individualisierung von Gegenständen besteht und auch die Einbindung von Funktionen in Gebrauchsgegenstände bzw. deren Oberflächen heute in den Fokus der Kunden rückt. Openings provided masking or panel and is only translucent in the openings of the masking or panel. The invention also relates to a method for producing such a film and to a particular use. Films in the form of multilayer composite films for coating or as surfaces of any objects are comprehensively known in the prior art, including the surface design of furniture and interior trim parts of vehicles, in particular motor vehicles. In the latter, grained, patterned or finely structured plastic skins are used as surfaces for the interior cladding, here often as relatively soft foamed foils with a pleasant feel, for example for the cladding of dashboards or the inner shells of doors etc. These are adapted accordingly in terms of strength and design Films are of course also used for other high-quality coated goods. Films for the interior cladding of motor vehicles, for furniture, bags etc., also commonly referred to as synthetic leather, often have a multi-layer structure and are often foamed and show three-dimensional structured surfaces in various shapes and designs on their top. The multi-layer structure usually consists of an upper cover or decorative layer, which is provided with the embossed or molded surface, and one or more lower layers. The top layer is usually provided with a lacquer layer and can also be colored. Appropriate adjustment of the layers, also through adapted softness or through the already mentioned foamed layers, creates an appealing haptic, ie a pleasant “soft” grip of the plastic film and also a certain gloss. Various methods are known in the prior art for producing such plastic skins, for Example of rolling and / or embossing processes for the production of “endless” film webs made of thermoplastic material, or processes for the production of individual molded skins, ie plastic molded parts. The increasing demand for comfort equipment, for example in the field of vehicle equipment, not only leads to the desire for more and more individualization of objects in these areas, but also to the integration of functions in everyday objects and their surfaces ,
Bleibt man bei den Fahrzeugen, so richtet sich der Blick neuerdings auf Bezugsmaterialien bzw. flexible Flächenmaterialien mit integrierten Funktions- oder Sensor- oder If you stay with the vehicles, the focus is now on reference materials or flexible surface materials with integrated function or sensor or
Signalelementen, insbesondere auch auf die Integration von Beleuchtungen oder Signal elements, in particular also on the integration of lighting or
Signalleuchten in die zur Beschichtung oder Verkleidung von Bauteilen verwendeten Folien. So wurde auch bereits vorgeschlagen, elektrolumineszente Elemente oder Signal lights in the films used to coat or clad components. So it has already been proposed to use electroluminescent elements or
Schichten in oder auf Bauteile bzw. Verkleidungsteilen für den Innenraum von Layers in or on components or cladding parts for the interior of
Kraftfahrzeugen anzubringen. Diesbezüglich offenbart die CA 2 454 911 Al einen Fahrzeughimmel als Formteil, welcher mit streifenförmigen elektrolumineszenten To install motor vehicles. In this regard, CA 2 454 911 A1 discloses a vehicle headlining as a molded part, which has strip-shaped electroluminescent elements
Elementen versehen ist. Der Fahrzeughimmel besteht dabei aus einem geformten Träger, der mit einer Beschichtungsfolie zu einem Bauteil verpresst wird. Dabei werden zunächst elektrolumineszente Elemente in dem Träger positioniert, mit ihren Anschlusskabeln durch den Träger geführt und dann mit der aufgelegten Beschichtungsfolie überdeckt, fixiert und verpresst. Erforderlich ist dazu allerdings eine relativ komplizierte Konstruktion. Zudem können auch bei dieser Ausführung die elektrolumineszenten Elemente hinter die Elements. The vehicle headlining consists of a shaped carrier that is pressed into a component with a coating film. Electroluminescent elements are initially positioned in the carrier with their connecting cables through guided the carrier and then covered, fixed and pressed with the applied coating film. However, this requires a relatively complicated construction. In addition, the electroluminescent elements can also behind this
Dekoroberfläche/Beschichtungsfolie als Wölbungen sichtbar werden. The decor surface / coating film become visible as bulges.
Die DE 10 2005 038 680 Al offenbart ein Bauteil eines Kraftfahrzeuges mit einer dreidimensionalen Oberfläche, die eine elektroluminiszierende Schicht aufweist und zur Fixierung der Bauteilform mit thermoplastischem Kunststoff hinterspritzt ist. Damit werden im Wesentlichen kleinere nicht-flexible Leuchtkörper, wie z. B. beleuchtete Tastschalter oder Leuchtmittel hergestellt. Die Herstellung größerer Teile gestaltet sich mit dieser Ausbildung eher schwierig. DE 10 2005 038 680 A1 discloses a component of a motor vehicle with a three-dimensional surface which has an electroluminescent layer and is injection molded with thermoplastic to fix the component shape. This means that essentially smaller, non-flexible luminous elements, such as, for. B. illuminated pushbuttons or lamps. The production of larger parts is rather difficult with this training.
Die DE 10 2015 101 331 Al offenbart ein auf einem textilen Trägermaterial angeordnetes Kunstleder in Form einer Verbundfolie, die eine lichtdurchlässige Schichtstruktur aufweist und eine Durchlässigkeit für sichtbares Licht in einem Bereich von 0,4-60 % aufweist. Innerhalb der Oberflächenlackierung dieser Verbundfolie oder auch innerhalb der DE 10 2015 101 331 A1 discloses a synthetic leather arranged on a textile carrier material in the form of a composite film, which has a translucent layer structure and has a permeability to visible light in a range of 0.4-60%. Within the surface coating of this composite film or within the
Schichtstruktur ist eine so genannte Farbstruktur angeordnet, die dort, wo sie angeordnet ist, eine Verringerung der Lichtdurchlässigkeit bewirkt. Je nach Anordnung der Layer structure is a so-called color structure, which causes a reduction in light transmission where it is arranged. Depending on the arrangement of the
Farbstruktur ist diese immer zu sehen oder nur bei Durchleuchtung des Kunstleders. This color structure can always be seen or only when the artificial leather is illuminated.
Die DE 10 2010 051 166 Al offenbart ein Verfahren zur Herstellung eines Materials mit einer opaken Oberfläche mit einer bei rückwärtiger Beleuchtung an der Oberfläche sichtbaren Graphik, einem Logo oder einer Animation. Hierbei wird auf einer Folie die Grafik als solche lichtdurchlässig und die Zwischenräume opak gehalten bzw. gestaltet und danach eine lichtdurchlässige Schicht aufgebracht. DE 10 2010 051 166 A1 discloses a method for producing a material with an opaque surface with a graphic, a logo or an animation visible on the surface when illuminated from the rear. Here, the graphic as such is translucent on a film and the interspaces are kept or designed opaque and then a translucent layer is applied.
Die Problematik, die sich insbesondere immer dann ergibt, wenn durch Blenden oder Maskierungen dargestellte alphanumerische Zeichen oder Logos bei Hinterleuchtung einer Folie auf deren Oberfläche erscheinen sollen, besteht darin, dass diese Zeichen in gewisser Weise verschwommen erscheinen. Dies kommt z.B. daher, dass etwa das auf seinem Durchtrittsweg weitere transluzente Folien passierende Licht beim Durchtritt einer diffusen Verteilung unterliegt auch oder zusätzlich eine Beugung an den Kanten der Blenden oder Maskierung auftritt. Ein Betrachter, der die Außenseite einer hinterleuchteten Folie betrachtet, sieht also oft nur ein unscharfes Zeichen oder Logo. Das ist insbesondere dann der Fall, wenn beispielsweise eine Blende oder Maskierung hinter eine Folie und direkt vor das Leuchtmittel gelegt wird. Eine solche unscharfe Darstellung ist im Sinne der heutigen hohen Qualitätsanforderungen im Automobil ungewünscht. The problem that arises in particular when alphanumeric characters or logos represented by blinds or masks are to appear on the surface of a film when there is backlighting is that these characters appear somewhat blurred. This is due, for example, to the fact that, for example, the light passing through further translucent foils on its path of passage when a diffuse one passes Distribution is also or additionally subject to diffraction at the edges of the diaphragms or masking. A viewer who looks at the outside of a backlit film often only sees a blurred character or logo. This is particularly the case if, for example, a screen or mask is placed behind a film and directly in front of the lamp. Such a blurred representation is undesirable in the sense of today's high quality requirements in the automobile.
Für die Erfindung bestand daher die Aufgabe, eine Folie für die Oberflächenbeschichtung von Gegenständen bereitzustellen, welche eine Funktionalisierung in Form einer The object of the invention was therefore to provide a film for the surface coating of objects, which has a functionalization in the form of a
Beleuchtung oder der Abgabe von Lichtsignalen beinhaltet und bei der es möglich ist, in bzw. auf der Oberfläche eine deutliche und scharf abgebildete Zeichen-, Logo- oder Lichtmusterdarstellung zu erreichen. Includes lighting or the emission of light signals and in which it is possible to achieve a clear and sharply depicted character, logo or light pattern representation in or on the surface.
Gelöst wird diese Aufgabe durch die Merkmale des Hauptanspruchs. Weitere vorteilhafte Ausbildungen sind in den Unteransprüchen offenbart. This task is solved by the features of the main claim. Further advantageous developments are disclosed in the subclaims.
Bei der Erfindungsgemäßen Verbundfolie schließt sich dazu die opake Schicht in Richtung der Trägerschicht unmittelbar an die Deckschicht rückseitig an, wobei das Grundmaterial der opaken Schicht dasselbe ist wie das der Deckschicht, also dem Grundmaterial der Deckschicht entspricht. Als Grundmaterial ist hier das im Wesentlichen und zu großen Anteilen vorhandene Kunststoffmaterial der Schichten bezeichnet, welches natürlich verschiedene Zusätze zur Einstellung der weiteren Materialeigenschaften enthalten kann. In the case of the composite film according to the invention, the opaque layer directly adjoins the back layer in the direction of the carrier layer, the base material of the opaque layer being the same as that of the cover layer, that is to say the base material of the cover layer. The basic material here is essentially the plastic material of the layers which is present in large proportions and which, of course, can contain various additives for setting the further material properties.
Die opake Schicht, die als flächige und mit Öffnungen versehene Maskierung oder Blende ausgebildet ist, grenzt also direkt an die Deckschicht an, wodurch bei einer The opaque layer, which is in the form of a flat mask or screen provided with openings, directly adjoins the cover layer, which means that one
Hinterleuchtung von der Rückseite der opaken Schicht eine ausreichend klare und scharfe Wiedergabe der durch die Maskierung dargestellten Öffnungen in Form von Logos oder Zeichen etc. möglich ist, vorteilhafterweise natürlich in Form von Symbolen,  Backlighting from the back of the opaque layer a sufficiently clear and sharp reproduction of the openings represented by the masking in the form of logos or characters etc. is possible, advantageously of course in the form of symbols,
Kennzeichnungen oder alphanumerischen Zeichen mit entsprechenden Bedeutungsinhalt. Bei einer entsprechend dünn ausgebildeten lichtdurchlässigen Deckschicht entsteht bei einer rückseitigen Durchleuchtung der gesamten Folie eine wenig diffuse Lichtverteilung des durch die Blende hindurchtretenden Lichts und auch eine Beugung an den Kanten der Öffnungen der opaken Schicht ist weitgehend reduziert. Der Weg, den das Licht nach dem Durchtritt durch die Maskierung oder Blende bis zum Abbild auf der Oberfläche derMarkings or alphanumeric characters with the corresponding meaning. In the case of a correspondingly thin, transparent cover layer, backlighting of the entire film results in a less diffuse light distribution of the light passing through the aperture and also a diffraction at the edges of the openings of the opaque layer is largely reduced. The path that the light takes after it has passed through the masking or aperture to form an image on the surface of the
Deckschicht, respektive der Lackierung, zurücklegt ist so gering, dass keine nennenswerte Diffusion entsteht. Das durch die Blende oder Maskierung erzeugte Abbild auf der Oberfläche der Deckschicht ist also sehr klar und scharf abgegrenzt. Unterstützt wird dieser vorteilhafte Effekt dadurch, dass die Deckschicht und die alsThe covering layer, or the coating, is so small that there is no significant diffusion. The image created by the aperture or masking on the surface of the cover layer is therefore very clear and sharply demarcated. This advantageous effect is supported by the fact that the top layer and the
Maskierung oder Blende ausgebildete opake Schicht dasselbe Grundmaterial aufweisen. Dadurch ergibt sich ein gleiches Verhalten der beiden Schichten beispielsweise bei mechanischen Beanspruchungen oder bei Temperatureinfluss. Eine Mehrschichtverbundfolie, bei der diese beiden Schichten aus demselben Masking or aperture formed opaque layer have the same base material. This results in the same behavior of the two layers, for example under mechanical loads or under the influence of temperature. A multilayer composite film, in which these two layers from the same
Grundmaterial bestehen, kann daher leicht auf Formteile aufgespannt oder aufgezogen werden, ohne dass die Klarheit der Darstellungen der durch die Blende oder Maskierung erzeugten Abbilder leidet. Es ist weiterhin vorteilhaft, wenn die rückseitige Trägerschicht eine textile Trägerschicht ist. Durch eine solche textile Trägerschicht wird die der Schichtverbund Folie zu einem Kunstleder, welches sich ohne Probleme vernähen lässt, nämlich wie ein natürliches Leder.  Base material exist, can therefore easily be stretched or mounted on molded parts without the clarity of the representations of the images created by the aperture or masking suffers. It is also advantageous if the back carrier layer is a textile carrier layer. Such a textile backing layer turns the laminated film into an artificial leather that can be sewn without problems, namely like a natural leather.
Eine vorteilhafte Weiterbildung besteht darin, dass die opake Schicht eine Pigmentierung und Viskosität aufweist, die sich von der Pigmentierung und Viskosität der Deckschicht unterscheidet. Gemeint ist hier eine Unterscheidung sowohl in der Anzahl als auch in der Art oder Farbe der Pigmente. An advantageous further development is that the opaque layer has a pigmentation and viscosity that differs from the pigmentation and viscosity of the cover layer. What is meant here is a distinction both in the number and in the type or color of the pigments.
Damit lässt sich auf relativ einfache Weise sowohl der Lichtdurchtritt durch die mit Öffnungen der Maskierung oder Blende als auch der Lichtdurchtritt durch die This allows both the passage of light through the openings with the masking or diaphragm and the passage of light through the in a relatively simple manner
darüberliegende Deckschicht anpassen, so dass auch dadurch das Erscheinungsbild auf der Oberfläche der Deckschicht optimiert werden kann. Die Anpassung kann dabei so ausgeführt werden, dass sowohl die Intensität des durchtretenden Lichts als auch dessen Farbe beeinflusst werden können, beispielsweise durch Zugabe unterschiedlicher und ggf. farblich zusammenwirkende Farbpigmente. Adjust the overlying top layer so that the appearance on the Surface of the top layer can be optimized. The adaptation can be carried out in such a way that both the intensity of the light passing through and its color can be influenced, for example by adding different and possibly color-interacting color pigments.
Eine weitere vorteilhafte Ausbildung besteht darin, dass die lichtdurchlässige Deckschicht, die lichtdurchlässigen Kunststoffschichten, die Trägerschicht und die opake Schicht eine solche Pigmentierung aufweisen, dass bei Auflicht auf die Verbundfolie ein einheitlicher und undurchsichtiger Farbeindruck von der Oberfläche der Verbundfolie entsteht, d.h., dass die Muster oder Öffnungen der Maskierung oder Blende auf der Oberfläche nicht sichtbar sind. Erst bei einem Hinterleuchten, also bei Durchleuchtung sind die Umrisse der Öffnungen der opaken Schicht auf der Oberfläche der Verbundfolie erkennbar. Auch dies lässt sich durch die Zugabe von in Anzahl und Art unterschiedlicher Pigmente oder von diesbezüglich farblich zusammenwirkende Pigmente (Farbpigmente) in das Material der jeweiligen Schichten erreichen. A further advantageous embodiment is that the translucent cover layer, the translucent plastic layers, the carrier layer and the opaque layer have such a pigmentation that, when incident light is applied to the composite film, a uniform and opaque color impression is produced from the surface of the composite film, that is to say that the patterns or openings of the mask or aperture are not visible on the surface. The outlines of the openings in the opaque layer on the surface of the composite film can only be recognized when there is backlighting, that is to say when the image is illuminated. This can also be achieved by adding pigments that differ in number and type or pigments that interact in terms of color (color pigments) in the material of the respective layers.
Eine vorteilhaft einfache Ausbildung einer erfindungsgemäßen lichtdurchlässigen An advantageously simple design of a translucent according to the invention
Mehrschichtverbundfolie entsteht dadurch, dass unterhalb der opaken Schicht in Richtung der Trägerschicht eine Licht emittierende oder leitende Schicht ausgebildet ist, Multilayer composite film results from the fact that a light-emitting or conductive layer is formed below the opaque layer in the direction of the carrier layer.
vorzugsweise eine über Elektroden aktivierbare elektrolumineszente Schicht. Damit erspart man sich separate unterhalb des gesamten Schichtverbunds angeordnete Leuchtmittel. preferably an electroluminescent layer which can be activated via electrodes. This saves separate illuminants arranged below the entire layer composite.
Eine solche eine Licht emittierende Schicht kann auch so ausgebildet werden, dass innerhalb des Schichtverbunds eine Schicht angeordnet ist, beispielsweise eine optische Schicht aus PET -oder PET-Fasem, die seitlich angestrahlt wird und das eingestrahlte Licht diffus über einen Flächenbereich des Schichtverbunds verteilt. Such a light-emitting layer can also be formed such that a layer is arranged within the layer composite, for example an optical layer made of PET or PET fibers, which is illuminated laterally and diffusely distributes the incident light over a surface area of the layer composite.
Ein besonders geeignetes Verfahren zur Herstellung einer erfindungsgemäßen A particularly suitable method for producing an inventive
Mehrschichtverbundfolie besteht darin, dass die Herstellung in einem Multi-layer composite film is that the production in one
Umkehrstreichverfahren mit folgenden Schritten erfolgt: • Aufbringen eines die Deckschicht bildenden Deckstrichs aus einem vorzugsweise pastösen Kunststoffmaterial auf eine Trägerfolie, The reverse sweep procedure is carried out with the following steps: Applying a top coat forming the cover layer from a preferably pasty plastic material to a carrier film,
• Aufbringen eines die opake Schicht bildenden Maskenstrichs auf die Deckschicht, wobei das Material des Maskenstrichs bis auf Pigmentierung und Viskosität dem Material des Deckstrichs entspricht,  Applying a masking coat forming the opaque layer to the top layer, the material of the masking coat corresponding to the material of the topcoat except for pigmentation and viscosity,
• Aufbringen weiterer lichtdurchlässige Schichten bildende Kunststoffstriche  • Application of further translucent layers of plastic coating
und/oder Kunststoffschaumstriche sowie ggf. lichtdurchlässige Kaschier- oder Kleberstriche,  and / or plastic foam coats and, if necessary, translucent lamination or adhesive coats,
• Aufbringen einer Trägerschicht, vorzugsweise einer textilen Trägerschicht auf den bestehenden Schichtverbund,  Applying a backing layer, preferably a textile backing layer, to the existing layer composite,
wobei nach ausreichender Trocknung bzw. Gelierung des Schichtverbundes die Trägerfolie abgezogen und die darunterliegende Oberfläche der Deckschicht des Schichtverbundes ggf. lackiert wird. Eine Oberflächenstruktur des Folienverbunds kann dann entweder durch ein eine genarbte Trägerfolie ausgebildet werden, die das Negativ der Narbung enthält und auf die die Deckschicht aufgetragen wird, oder nach Herstellung der Folie durch eine Prägung. wherein after the layer composite has dried or gelled sufficiently, the carrier film is peeled off and the surface of the top layer of the layer composite underneath is optionally lacquered. A surface structure of the film composite can then be formed either by a grained carrier film which contains the negative of the grain and to which the cover layer is applied, or by embossing after the film has been produced.
Durch ein solcherart ausgelegtes Umkehrstreichverfahren kann insbesondere die opake Schicht formtreu, d.h. hier insbesondere in Bezug auf die Maskierung oder Blende mit ihren Öffnungen längentreu und flächentreu aufgebracht werden, da der Auftrag auf die mit einer Trägerfolie stabil unterstützte Deckschicht erfolgt, ggf. aufliegend auf einer Unterlage, einem Streichtisch oder auch auf der gespannten Trägerfolie. Damit muss die Maskierung nicht etwa auf einen weichen Schichtverbund aufgetragen werden, der sich eventuell verformen und dann einen instabilen Untergrund darstellen könnte. Through such a reverse sweeping process, the opaque layer in particular can be shaped, i.e. here in particular with respect to the masking or mask with its openings are applied length-wise and area-wise, since the application is carried out on the top layer stably supported with a backing film, possibly lying on a base, a spreading table or also on the stretched backing film. This means that the masking does not have to be applied to a soft layer composite, which may deform and then represent an unstable surface.
Unterstützt werden die Längentreue und Flächentreue der Maskierung durch eine vorteilhafte Weiterbildung des Verfahrens, bei dem der die opake Schicht bildende Maskenstrich in einem Druckverfahren auf die Deckschicht aufgebracht wird, The length and area fidelity of the masking are supported by an advantageous development of the method in which the mask line forming the opaque layer is applied to the cover layer in a printing process,
vorzugsweise im Siebdruckverfahren. Im Zusammenspiel mit einer entsprechend eingestellten Viskosität der opaken Schicht ergibt sich hier eine besonders einfache, präzise und scharfkantige Aufbringung der Maskierung oder Blende. preferably by screen printing. In combination with a correspondingly set viscosity of the opaque layer, this results in a particularly simple, precise and sharp-edged application of the mask or mask.
Durch eine unterschiedliche Einstellung der Viskosität von opaker Schicht und By setting the viscosity of the opaque layer and
Deckschicht während des Aufbringens durch das erfindungsgemäße Cover layer during application by the inventive
Umkehrstreichverfahren kann das Aufbringen der opaken Schicht auf die Deckschicht wesentlich erleichtert werden, insbesondere dann, wenn man es mit einem Druckverfahren aufbringt. Die Viskosität der opaken Schicht wird dann so eingestellt, dass sie für das angewandte Druckverfahren richtig eingestellt ist. Die Viskosität der Deckschicht kann dabei höher oder niedriger als die Viskosität der opaken Schicht eingestellt werden. Reverse coating processes can make it much easier to apply the opaque layer to the top layer, especially if it is applied using a printing process. The viscosity of the opaque layer is then adjusted so that it is set correctly for the printing process used. The viscosity of the top layer can be set higher or lower than the viscosity of the opaque layer.
Eine weitere vorteilhafte Ausbildung des Verfahrens besteht darin, dass sowohl Deckstrich als auch Maskenstrich in Form einer Masse aus pastöses Polyvinylchlorid aufgetragen werden (Plastisol). Eine solche Paste lässt sich mit den bekannten Verfahren leicht streichen und handhaben und in die üblichen Fertigungsprozesse eingliedem. A further advantageous embodiment of the method is that both top coat and mask coat are applied in the form of a paste made of pasty polyvinyl chloride (plastisol). Such a paste can be easily painted and handled with the known methods and incorporated into the usual manufacturing processes.
Die erfindungsgemäße Mehrschichtverbundfolie lässt sich, wie bereits oben angedeutet, insbesondere als Beschichtung eines Innenverkleidungsteils für ein Kraftfahrzeug verwenden. Viele dortige Innenverkleidungsteile werden nämlich erheblichen Dehnungen unterworfen, wenn sie auf entsprechende Trägerkonstruktionen aufgezogen werden. Dies ist beispielsweise bei einem vielfach gewölbten Armaturenbrett der Fall. Die As already indicated above, the multilayer composite film according to the invention can be used in particular as a coating for an interior trim part for a motor vehicle. Many interior trim parts there are subject to considerable strains when they are mounted on corresponding support structures. This is the case, for example, with a multi-curved dashboard. The
erfindungsgemäße Mehrschichtverbundfolie ist hierzu bestens geeignet und weist auch nach dem Aufbringen auf ein geformtes Konstruktionsteil keine Mängel in der Klarheit der Darstellungen oder bei den durch die Blende oder Maskierung erzeugten Abbildern auf. Anhand eines Ausführungsbeispiels soll die Erfindung näher erläutert werden. The multilayer composite film according to the invention is ideally suited for this purpose and, even after being applied to a shaped structural part, has no deficiencies in the clarity of the illustrations or in the images produced by the screen or masking. The invention will be explained in more detail using an exemplary embodiment.
Die einzige Fig. 1 zeigt schematisch im oberen Teil eine vergrößerte Aufsicht auf einen Teilbereich einer erfindungsgemäßen Mehrschichtverbundfolie 1 für ein The only FIG. 1 shows schematically in the upper part an enlarged view of a partial area of a multilayer composite film 1 according to the invention for a
Innenverkleidungsteil einer Mittelkonsole eines Kraftfahrzeugs bei Durchleuchtung und im unteren Teil einen Schnitt A -A durch diesen Teilbereich. Das Innenverkleidungsteil weist dabei eine mit einer äußeren transparenten Lackschicht 2 versehene Deckschicht 3 aus einem Polyvinylchlorid (PVC) auf. Bei dieser Ausführung ist die Deckschicht 3 ihrerseits ebenfalls lichtdurchlässig, nämlich zu nur etwa 30 % mit Pigmenten eingefärbt und lässt damit einen bestimmten Prozentteil des auf ihrer Rückseite auftreffenden Lichts durch. Interior trim part of a center console of a motor vehicle when fluoroscopic and in the lower part a section A-A through this partial area. The interior trim part has an outer layer 3 of a polyvinyl chloride (PVC) provided with an outer transparent lacquer layer 2. In this embodiment, the cover layer 3 is in turn also translucent, namely only about 30% colored with pigments and thus allows a certain percentage of the light striking its rear side to pass through.
Innerhalb des gesamten Schichtverbunds ist eine opake, d.h. lichtundurchlässige Schicht 4 angeordnet ist, die als flächige und mit Öffnungen versehene Maskierung oder Blende ausgebildet und lediglich in den Öffnungen 8 der Maskierung oder Blende lichtdurchlässig ist. Die opake Schicht 4 schließt sich in Richtung der Trägerschicht 7 direkt an dieThere is an opaque, i.e. opaque layer 4 is arranged, which is designed as a flat and provided with a masking or diaphragm and is only translucent in the openings 8 of the masking or diaphragm. The opaque layer 4 adjoins the carrier layer 7 directly
Deckschicht 3 rückseitig an. Das Grundmaterial der opaken Schicht 4 besteht aus PVC und ist dasselbe wie das der Deckschicht 3. Cover layer 3 on the back. The base material of the opaque layer 4 consists of PVC and is the same as that of the cover layer 3.
Unterhalb der opaken Schicht 4 sind mehrere weitere lichtdurchlässige Kunststoffschichten angeordnet, nämlich eine lichtdurchlässige/transluzente Kunststoffschaumschicht 5 sowie eine lichtdurchlässige Kleberschicht 6. A number of further translucent plastic layers are arranged below the opaque layer 4, namely a translucent / translucent plastic foam layer 5 and a translucent adhesive layer 6.
Letztlich schließt sich nach unten eine lichtdurchlässige textile Trägerschicht 7 an, so dass sich die Mehrschichtverbundfolie wie ein Kunstleder leicht bearbeiten und vernähen lässt. Ultimately, a translucent textile carrier layer 7 follows at the bottom, so that the multilayer composite film can be easily processed and sewn like an artificial leather.
Bei einer Hinterleuchtung von der Rückseite der Verbundfolie aus, hier dargestellt durch die Pfeile 9, entsteht ein klares und scharf geschnittenes Abbild 8‘ der in der Maskierung Blende enthaltenen Öffnungen 8 auf der Außenoberfläche der Deckschicht 3, respektive der Lackschicht 2, hier beispielsweise in Form eines Symbols für eine Batterieladung, wie durch den im oberen Teil der Fig.1 dargestellten Ausschnitts einer Aufsicht auf die erfindungsgemäße Mehrschichtverbundfolie gezeigt. Bezugszeichenliste With backlighting from the back of the composite film, shown here by the arrows 9, a clear and sharply cut image 8 'of the openings 8 contained in the masking panel is formed on the outer surface of the top layer 3, or the lacquer layer 2, here in the form, for example a symbol for a battery charge, as shown by the section of a top view of the multilayer composite film according to the invention shown in the upper part of FIG. LIST OF REFERENCE NUMBERS
(Teil der Beschreibung)  (Part of the description)
1 Mehrschichtverbundfo lie 1 multilayer composite sheet
2 Lackschicht  2 lacquer layer
3 Deckschicht/Deckstrich  3 top coat / top coat
4 Opake Schicht /Maskierung oder Blende 4 Opaque layer / masking or aperture
5 Kunststoffschaumschicht/Zwischenstrich5 plastic foam layer / intermediate coat
6 Kleberschicht/Kaschierstrich 6 layer of adhesive / lamination
7 Textile Trägerschicht  7 Textile carrier layer
8 Öffnung in der Maskierung oder Blende 8 Abbild der Maskierung  8 Opening in the mask or aperture 8 Image of the mask
9 Hinterleuchtung (prinzipiell)  9 backlighting (in principle)

Claims

Patentansprüche claims
1. Mehrschichtverbundfolie (1) aus Kunststoff als Oberflächenbeschichtung eines 1. multilayer composite film (1) made of plastic as a surface coating
Gegenstands, wobei die Verbundfolie mindestens partiell, d.h. in Teilbereichen lichtdurchlässig ist und mindestens eine äußere, ggf mit einer lichtdurchlässigen Subject, the composite film at least partially, i.e. is translucent in some areas and at least one outer, possibly with a translucent
Lackierung (2) versehene lichtdurchlässige Deckschicht (3) und rückseitig der Deckschicht eine oder mehrere weitere lichtdurchlässige Kunststoffschichten (5, 6) sowie eine lichtdurchlässige Trägerschicht (7) aufweist, wobei innerhalb des Paint (2) provided translucent cover layer (3) and on the back of the cover layer one or more further translucent plastic layers (5, 6) and a translucent carrier layer (7), wherein within the
Schichtverbunds eine opake Schicht (4) angeordnet ist, die als flächige und mit Öffnungen (8) versehene Maskierung oder Blende ausgebildet und lediglich in den Layer composite an opaque layer (4) is arranged, which is formed as a flat and provided with openings (8) masking or screen and only in the
Öffnungen der Maskierung oder Blende lichtdurchlässig ist, dadurch Openings of the masking or aperture is translucent, as a result
gekennzeichnet, dass die opake Schicht (4) in Richtung der Trägerschicht an die Deckschicht (3) rückseitig anschließt, wobei das Grundmaterial der opaken Schicht (4) dasselbe ist wie das der Deckschicht (3).  characterized in that the opaque layer (4) adjoins the cover layer (3) on the back in the direction of the carrier layer, the base material of the opaque layer (4) being the same as that of the cover layer (3).
2. Lichtdurchlässige Mehrschichtverbundfolie nach Anspruch 1, bei der die Öffnungen (8) in der opaken Schicht (4) in Form von Symbolen, Kennzeichnungen oder alphanumerischen Zeichen ausgebildet sind. 2. Translucent multilayer composite film according to claim 1, in which the openings (8) in the opaque layer (4) are in the form of symbols, labels or alphanumeric characters.
3. Lichtdurchlässige Mehrschichtverbundfolie nach Anspruch 1 oder 2, bei der die opake3. Translucent multilayer composite film according to claim 1 or 2, wherein the opaque
Schicht (4) eine Pigmentierung aufweist, die sich von der Pigmentierung der Layer (4) has a pigmentation that differs from the pigmentation of the
Deckschicht (3) unterscheidet.  Cover layer (3) differs.
4. Lichtdurchlässige Mehrschichtverbundfolie nach Anspruch 3, bei der die 4. Translucent multilayer composite film according to claim 3, wherein the
lichtdurchlässige Deckschicht (3), die lichtdurchlässigen Kunststoffschichten (5, 6), die Trägerschicht (7) und die opake Schicht (4) eine solche Pigmentierung aufweisen, dass bei Auflicht auf die Verbundfolie ein einheitlicher und undurchsichtiger  translucent cover layer (3), the translucent plastic layers (5, 6), the backing layer (7) and the opaque layer (4) have such a pigmentation that, when incident on the composite film, a more uniform and opaque
Farbeindruck von der Oberfläche der Verbundfolie entsteht, und dass bei einem Hinterleuchten (9) die Umrisse bzw. das Abbild (8‘) der Öffnungen der opaken Schicht (4) auf der Oberfläche der Verbundfolie erkennbar sind. Color impression of the surface of the composite film arises, and that in the case of back lighting (9) the outlines or the image (8 ') of the openings of the opaque layer (4) can be seen on the surface of the composite film.
5. Lichtdurchlässige Mehrschichtverbundfolie nach einem der Ansprüche 1 bis 4, bei der unterhalb der opaken Schicht (4) in Richtung der Trägerschicht (7) eine Licht emittierende oder leitende Schicht ausgebildet ist, vorzugsweise eine über Elektroden aktivierbare elektroluminiszente Schicht. 5. Translucent multilayer composite film according to one of claims 1 to 4, in which a light-emitting or conductive layer is formed below the opaque layer (4) in the direction of the carrier layer (7), preferably an electroluminescent layer which can be activated via electrodes.
6. Verfahren zur Herstellung einer partiell, d.h. in Teilbereichen lichtdurchlässigen 6. Method of making a partial, i.e. translucent in some areas
Mehrschichtverbundfolie (1) nach Anspruch 1 bis 5, wobei die Verbundfolie mindestens eine äußere und ggf. mit einer lichtdurchlässigen Lackierung (2) versehene lichtdurchlässige Deckschicht (3) und rückseitig der Deckschicht eine oder mehrere weitere lichtdurchlässige Schichten (5, 6) sowie eine Trägerschicht (7) aufweist und innerhalb des Schichtverbunds eine opake Schicht (4) angeordnet ist, die als flächige und mit Öffnungen (8) versehene Maskierung oder Blende ausgebildet und lediglich in den Öffnungen der Maskierung oder Blende lichtdurchlässig ist, dadurch  Multi-layer composite film (1) according to claim 1 to 5, wherein the composite film at least one outer and optionally provided with a translucent coating (2) translucent cover layer (3) and on the back of the cover layer one or more further translucent layers (5, 6) and a carrier layer (7) and an opaque layer (4) is arranged within the layer composite, which is designed as a flat mask or screen provided with openings (8) and is only translucent in the openings of the mask or screen, thereby
gekennzeichnet, dass die Herstellung in einem Umkehrstreichverfahren mit folgenden Schritten erfolgt:  characterized in that the production takes place in a reverse coating process with the following steps:
- Aufbringen eines die Deckschicht (3) bildenden Deckstrichs aus einem  - Applying a top coat forming the top layer (3) from a
vorzugsweise pastösen Kunststoffmaterial auf eine Trägerfolie,  preferably pasty plastic material on a carrier film,
- Aufbringen eines die opake Schicht (4) bildenden Maskenstrichs auf die  - Applying a mask line forming the opaque layer (4) to the
Deckschicht, wobei das Material des Maskenstrichs bis auf Pigmentierung und Viskosität dem Material des Deckstrichs entspricht,  Top layer, the material of the mask coat corresponding to the material of the top coat except for pigmentation and viscosity,
- Aufbringen weiterer lichtdurchlässige Schichten (5, 6) bildender Kunststoffstriche und/oder Kunststoffschaumstriche sowie ggf. lichtdurchlässiger Kaschier- oder Kleberstriche,  - Application of further translucent layers (5, 6) of plastic coats and / or plastic foam coats and, if necessary, translucent lamination or adhesive coats,
- Aufbringen einer Trägerschicht (7), vorzugsweise einer textilen Trägerschicht auf den bestehenden Schichtverbund,  Applying a backing layer (7), preferably a textile backing layer, to the existing layer composite,
wobei nach ausreichender Gelierung bzw. Trocknung des Schichtverbundes die Trägerfolie abgezogen und die darunterliegende Oberfläche der Deckschicht des Schichtverbundes ggf. lackiert wird after the gelling or drying of the layer composite has been carried out, the carrier film is peeled off and the underlying surface of the cover layer of the layer composite is optionally painted
7. Verfahren nach Anspruch 6, bei dem der die opake Schicht bildende Maskenstrich in einem Druckverfahren auf die der Deckschicht (3) aufgebracht wird, vorzugsweise im Siebdruckverfahren. 7. The method according to claim 6, wherein the mask line forming the opaque layer is applied to the cover layer (3) in a printing process, preferably in a screen printing process.
8. Verfahren nach Anspruch 6 oder 7, bei dem die opake Schicht (4) während des 8. The method according to claim 6 or 7, wherein the opaque layer (4) during the
Aufstreichens eine Viskosität aufweist, die sich von der während des Aufstreichens vorhandene Viskosität der Deckschicht (3) unterscheidet.  Spreading has a viscosity that differs from the viscosity of the top layer (3) present during spreading.
9. Verfahren nach Anspruch 6 bis 8, bei dem sowohl Deckstrich als auch Maskenstrich als pastöses Polyvinylchlorid aufgetragen werden (Plastisol). 9. The method according to claim 6 to 8, in which both top coat and mask coat are applied as pasty polyvinyl chloride (plastisol).
10. Verwendung einer Mehrschichtverbundfolie nach Anspruch 1 bis 9 als Beschichtung eines Innenverkleidungsteils für ein Kraftfahrzeug. 10. Use of a multilayer composite film according to claim 1 to 9 as a coating of an interior trim part for a motor vehicle.
EP19739988.4A 2018-08-23 2019-07-15 Multilayer composite film made of plastic Pending EP3840945A1 (en)

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