WO2013030090A1 - Trim part, in particular for the interior of a vehicle, and manufacturing method - Google Patents

Abstract

Proposed are a trim part for the interior of a motor vehicle, comprising a substrate (1) and a multi-layered film (3, 4) connected thereto, a method for producing a trim part for the interior of a motor vehicle, a multi-layered film (3, 4), and a use of a multi-layered film (3, 4), wherein the multi-layered film (3, 4) comprises polypropylene (PP) or a polypropylene copolymer, wherein a foamed intermediate layer (2) is arranged between the substrate (1) and the multi-layered film (3, 4), wherein the elasticity of the intermediate layer (2) is greater than the elasticity of the multi-layered film (3, 4).

Description

 EQUIPMENT PART, ESPECIALLY FOR THE INTERIOR OF A VEHICLE, AND MANUFACTURING PROCESS

description

The invention relates to a piece of equipment, in particular for the interior of a vehicle, a method for its production and a suitable

Tool.

The interior trim of motor vehicles today consist of a plurality of moldings, which consist of a substrate or have a substrate that provides the appropriate dimensional stability of the molding and absorbs the mechanical forces occurring. This substrate is often laminated with a film in order to increase the optical appearance in the interior of the motor vehicle. In the past, these films have often been relatively thick "in mold decoration" (IMD) films, but are comparatively expensive and / or less scratch resistant and / or very glossy (with gloss levels according to VDA standard 621-409 greater than, for example, 10 or greater than 20 or greater than 30).

The invention has for its object to provide a scratch-resistant fitting part, in particular a trim part for the interior of a motor vehicle, which does not have the disadvantages of the prior art and which has a pleasant feel and is rational to manufacture.

The object is achieved in that the equipment part a rigid support, this at least partially covering, elastic

Interlayer and this at least partially covering the film, in particular a multi-layer film having. The intermediate layer is provided according to the invention foamed and has, preferably by the foaming, a comparatively large elasticity. The carrier may for example consist of a fiber-reinforced or filled olefinic plastic and be manufactured by injection molding, pressing or the like. The intermediate layer is preferably foamed physically or chemically and advantageously comprises a thermoplastic elastomer, for example a TPE, TPE-E or TPE-S. Alternatively, it can be provided with advantage that the foamed intermediate layer of a

Polyurethane foam, preferably using a

Adhesive is cohesively bonded to the film or multilayer film and / or the carrier. The film or multilayer film preferably has a thickness of less than 750 μιτι, in particular less than 500 μιτι and particularly preferably of about 400 μιτι, very particularly preferably 150 μιτι - 250 μιτι on. The foil or

Multilayer film preferably consists of a relatively thicker main layer and a relatively thinner cover layer, which subsequently the visible side of the

Equipment parts forms. The main layer can in turn consist of one or more layers, which preferably consist of polyolefinic plastics and are produced by coextrusion. The cover layer is advantageously made of a lacquer, for example of a polyurethane, which the

Equipment part gives the desired properties in terms of scratch resistance, chemical resistance or gloss level.

The inventive piece of equipment is according to a first

Execution variant advantageously produced by the fact that the film or

Multilayer film is provided in advance with the elastic intermediate layer,

preferably in the course of coextrusion. As a result, a particularly good adhesion between the film or multilayer film and the intermediate layer is achieved. Alternatively, however, for example, a lamination or spraying a foaming mass are conceivable. The provided with the intermediate layer film or multilayer film is subsequently provided from the side of the intermediate layer ago with the carrier, for example by pressing with a prefabricated carrier or by injection molding. By pressing the film or multilayer film against a grained or otherwise structured surface of the tool, the equipment part receives a surface structure (in-mold graining). The inventive piece of equipment is according to a second

Embodiment variant advantageously made by injection molding in a tool in a first cavity of the carrier and in a second cavity, the film or multilayer film is introduced. The film or multilayer film can be inserted as a two-dimensional semi-finished product or already preformed in three dimensions. The tool advantageously has a core bounding the first cavity, which core is removed after the injection molding of the carrier. Subsequently, the film or multilayer film can be brought into spaced coverage with the remaining in the tool carrier. In this distance, the elastic intermediate layer is advantageously injected below, which cools there and / or chemically reacted. By the pressure generated by the liner, the film or

Multilayer film is advantageously pressed against a grained or otherwise structured surface of the second cavity and thereby obtains a

Surface structure (in-mold graining).

The shaped body or the substrate is coated according to the invention with the film at least on one side. Here, as a film or as a multilayer film, use is made of a film which has a thickness of at most 750 μm. Preferably, the layer thickness of the film less than 500 μιτι, more preferably of less than or equal to about 400 μιτι, most preferably of less than or about equal to 300 μιτι or in the range between about 300 μιτι and about 400 μιτι. It is thereby possible that significant cost savings on the overall component are possible because significantly less material for the film or

Multi-layer film used as well as a cheaper material and / or

Manufacturing process for the film is used.

According to the invention, it is particularly preferred if the film has on its side facing away from the substrate (visible side) a lacquer previously applied to the film or a lacquer layer previously applied to the film. As a result, the appearance of the trim part on the laminated with the film side (visible side) can be varied in a particularly simple manner and by in an advantageous manner

Variation or adjustment of the paint or the paint layer can be adjusted. Furthermore, it is inventively preferred that the lacquer layer has a layer thickness of about 1 μιτι to about 30 μιτι, preferably from about 5 μιτι to about 20 μιτι, more preferably from about 10 μιτι or preferably of at most about 10μιτι. The remaining thickness of the film of preferably 300 μιτι (at a total thickness of the film of, for example, 300 μιτι) to about 400 μιτι (for a total thickness of the film of, for example, 400 μιη) is preferably formed by a multilayer film structure, ie by a film structure with at least a layer and another layer. Alternatively, it may also be a

Multilayer film in the form of a so-called monofilm act, i. the

Although multilayer film comprises only one layer, but which consists of several materials, or the multilayer film comprises several layers, but these layers have identical material compositions.

For the production of the finished equipment part, in particular trim part, in particular vehicle trim part, this film is connected including the paint with a plastic carrier or with the substrate, wherein according to the invention between the substrate and the multilayer film, a foamed intermediate layer is arranged, wherein the elasticity of the intermediate layer is greater than the elasticity of the multilayer film. It can either be provided that the film together with the lacquer layer and the foamed intermediate layer in a flat form, i. just, is inserted into a tool for the production of the trim part and then in a single manufacturing step by injection of a plastic material for the production of the substrate molding both the plastic carrier and the film together with the lacquer layer and the foamed interlayer, wherein during this molding step at the same time a so-called graining on the visible side of the paint or on the visible side of the film is produced and wherein such a grain is usually μιτι with height differences of the visible side of the surface of the trim panel from about 0 to about 300 to 400 μιτι connected.

As an alternative to this production process with a single molding step both for forming the film and for forming the plastic carrier, it is also possible according to the present invention for the film, together with the paint and the foamed intermediate layer, to be preformed in a first molding step and only in a second molding step (In a second tool) is connected to the plastic material of the plastic carrier. In which Manufacturing process is always a so-called inmoldgraining (IMG) process in which a scar can (but does not have to) be introduced into the paint layer or in the film layer of the trim part. This process can be either an injection molding process or a transfer molding process.

In the event that the film (or the multilayer film) and the foamed

Intermediate layer is processed in a flat state and brought directly into the final shape, it may be provided that the film is heated before the deformation step, so that it deforms easily. It is a significant advantage of the present invention that when the material of the film (and the foamed interlayer) is brought into contact with the material of the substrate, there is no destruction of the film. Nevertheless, the film must be so easily deformable that it also adapts to the subtleties of the structure of the tool.

In particular, it is important that due to the small thickness of the film a

Destruction of the film during the introduction or Einschießens of (liquid and, for example, about 270 ° C hot) plastic material for the carrier

Injection molding is avoided. In the case where the film is deep-drawn in a first step, i. is preformed and is brought into a final deformation in a second deformation step together with the plastic material of the carrier, usually no heating of the film and the foamed

Intermediate layer provided before the second molding step. Nevertheless, attention must be paid here too to sufficient stability of the film with the foamed intermediate layer, in particular when bringing it into contact with the (in particular hot and pressurized) material of the carrier. In the deep-drawing operation in the first process step, deformation is usually carried out of about 95% of the final deformation.

A trimming or edge processing is carried out in the case of one-stage deformation of the film (with the foamed intermediate layer) usually after the deformation step. Here, after the deformation step, both a

Pruning step of the foil also a fold over of the foil possible. In the two-stage production process (deep-drawn film in the first process step), it is possible according to the present invention, that between the first and the second deformation step, a punching step or a trimming step of the film takes place. In this case, no post-processing of the component is required following the second deformation step. But it can also be provided that a clipping step or a punching step only after the second

Deforming step takes place.

The demolding of the finished trim panel with connected film on the visible side takes place in all deformation steps according to known technologies.

According to the present invention, several material systems or

Combinations of material systems for the trim part or

Vehicle fairing part in question. A first combination of materials provides that the lacquer or the lacquer layer provided on the visible side of the foil is a polyurethane lacquer, that the multilayer foil is a polypropylene copolymer multilayer foil and that the Plastic carrier to a polypropylene plastic carrier, optionally with fillers or reinforcing materials such as fibers or the like, is, wherein the plastic carrier may also be foamed. In a further material combination of the vehicle trim part, the lacquer layer is likewise a polyurethane lacquer layer, in the case of the film likewise a polypropylene copolymer multilayer film with a special adhesion promoter and in the plastic material of the plastic carrier an ABS and / or PC material

(ABS = acrylonitrile butadiene styrene, PC = polycarbonate). These are both in the substrate made of polypropylene plastic or in the substrate made of ABS or PC plastic to commercially available plastic materials, which are provided for example with up to 30% glass fibers and or with up to 30% talc, both additional materials theoretically may be added up to 50% and wherein the actual plastic content (ie the polypropylene content in the case of the plastic substrate based on polypropylene or the ABS / PC content for the plastic substrate on ABS and / or PC-based) in any case at least 50%.

According to the invention, it is therefore preferred that the lacquer layer is provided polyurethane-based and preferably a thermoplastic or a reactive

Two-component polyurethane system comprises or that the paint layer has a high Has scratch resistance and / or high chemical resistance and / or high UV resistance and / or high Schreibunempfindlichkeit or that the lacquer layer optically a dull appearance (surface with special

Gloss levels in the sense of a comparatively low gloss) and also has a haptic soft touch impression (soft touch). Here, the gloss measurement is measured, for example, according to VDA 621-409, wherein

According to the invention, in particular a degree of gloss equal to 0.5 or greater than 0.5 can be realized, for example a degree of gloss of from about 0.5 to about 1.5 or a degree of gloss of from about 0.5 to about 4.0, or a gloss level of from about 1.5 to about 4.0 is feasible. The scratch resistance is determined in this case, for example, with a so-called Erichsen pen, according to the invention scratch resistance up to a load of up to 20 N according to the invention can be achieved. Alternatively, the force resistance is carried out with a so-called grid test, whereby colorimetrically the so-called delta L value (at a load of, for example, 5 N, 10 N and 15 N) is measured. Further alternatively, the scratch resistance is determined with a so-called five-finger test (with differently loaded pins from 2 N to 25 N) or determined according to the manufacturers standard BMW PA0015 or PA0016. According to the invention it is possible in the force strength, a

Damage free (no visible force pattern due to damage to the surface) up to a force of 7 N or up to 15 N to achieve. Write insensitivity is determined according to the invention, for example, according to one of the manufacturer's standards GM9150P (General Motors) or LP-463 / PB-5401 (Chrysler). With regard to the resistance to chemicals, it is generally a matter of customary chemical resistance according to various manufacturers' standards, in particular gasoline, isopropanol, methanol and a number of commercial "auto cleaners." According to the invention, it is particularly preferred that the surface of the finished trim part has a gloss level below about 1, 5 (for example according to VDA 621-409) and additionally has a scratch resistance of at least for example about 10 N (according to one of the abovementioned test methods).

The film is usually a multilayer film (ie, the film has at least one layer and one (different therefrom) further layer with a total of, for example, three or five layers (excluding the outer lacquer layer)), wherein at least the one layer consists of polypropylene. Preferably, the further layer or the further layers are thermoplastic materials, particularly preferably polystyrene (PS) or a PS copolymer, a polyolefin, a polyolefin copolymer or a thermoplastic elastomer (TPE). Preferred thermoplastic elastomers are thermoplastic elastomers based on a styrene copolymer component (TEP-S), of

Ethylene / propylene terpolymer / propylene (TPE-V), a copolyester (TPE-E) or based on polyurethane (TPE-U). Most preferably, the further layer is a combination of at least two of said thermoplastic materials and / or thermoplastic elastomers.

In particular, but not necessarily, the film has a cover layer of polyethylene terephthalate (PET), polymethylmethacrylate (PMMA) or

Polycarbonate (PC) or a mixture of at least two of these

Components on.

The respective layers of the film can be bonded by suitable adhesion promoter layers during coextrusion. Alternatively, they are laminated together with an adhesive.

Preferably, the film has a decorative layer, which is particularly preferably applied by the printing process.

In a particularly preferred embodiment of the film, this comprises

Polypropylene, in particular PP-H (polypropylene homopolymer) or PP copolymer. In order to achieve a particularly good stability in the back molding, a polypropylene block copolymer (PP-BC) having a comparatively low melt flow index (MFI) of less than 1 g / 10 is produced in at least one of the layers or further layers Minutes (230 ° C / 2.16 kg) used. In addition, a proportion of less than 30% of an elastic material is included, whereby the moldability or the stretchability of the film is achieved. This is exemplified

thermoplastic elastomer used. The film may also have low levels (usually less than 15%) of additives such as color pigments, fillers, stabilizers, processing aids, etc. To produce the film, in particular the so-called sleeve method for smoothing the film is used. In this case, the polymer melt is passed after exiting a slot die between a metal strip and a cooling roller and thus receives the necessary Class-A surface. The surface of the film essentially determines the quality of the paint film to be applied to the film with regard to its appearance. In addition, in this way, due to the low orientation and the low Kri stal I ini tätsg rades the mechanical properties improved. In particular, the thermoformability or the moldability is improved in this way and the film receives a greater toughness.

The substrate of the molding according to the invention is

preferably a melt-processed (i.e., melt-processed) or alternatively a mat-shaped (i.e., matte-processed) thermoplastic material.

The melt-processed material preferably consists of polypropylene (PP), acrylonitrile / butadiene / styrene (ABS), a mixture of ABS and polycarbonate (PC), polyamide (PA), a thermoplastic elastomer (TPE) or a thermoplastic elastomer based on of natural rubber and / or

Polypropylene (PP). Furthermore, the melt-processed material preferably consists of a mixture of at least two of these materials.

Particularly preferably, the melt-processed material has fillers. Exemplary fillers are talc, chalk and wollastonite. Furthermore, the melt-processed material reinforcing materials, such. As glass fibers, natural fibers, carbon fibers or textile-like reinforcements, such as. B.

Glass fiber mats or natural fiber mats have to increase its mechanical stability. Further preferred are the melt-processed material pore-forming, such. As physical or chemical blowing agents or gas-loaded elastomer balls added.

The mat-shaped thermoplastic material preferably comprises fibers, e.g. B.

Natural fibers, glass fibers or carbon fibers, and a thermoplastic Binders, such as polypropylene on. The thermoplastic binder may be admixed to the remaining fibers in the form of fibers or powders.

The lining part or the fitting part according to the invention is

For example, produced by the thermoplastic material injected behind the film, pressed or embossed. Preferably, the back molding is carried out as in the document DE 10 2005 039 600, which is hereby incorporated by reference and thus as part of the disclosure.

The mat-shaped substrate is preferably preheated before its connection with the film and then pressed or embossed in a forming tool with the film.

The film is preferably preheated as a 2D film optionally or after previous deformation of the film, for. B. thermoforming, in the shaping

Inserted tool and there with the substrate, for example, by injection molding, backpressing or Hinterprägen connected. Optionally, the foil is cut into a suitable contour, for example punched, prior to insertion into the shaping tool.

The surface structure of the trim part according to the invention can be formed by a corresponding surface of the forming tool. This can have both a polished and a textured surface, so that trim parts with a smooth or a grained surface can be produced.

figure

FIG. 1 shows by way of example and schematically an embodiment of the invention.

The illustrated piece of equipment consists of a carrier 1, an elastic intermediate layer 2 and a film, which in turn has a main layer 3 facing the intermediate layer 2 and a cover layer 4. The intermediate layer 2 consists of a foamed, thermoplastic elastomer and has been connected to the film in advance, ie before the connection to the carrier 1, for example by coextrusion. As an alternative to such a coextrusion for the production of the foamed sheet provided with the film or multilayer film, it can also be provided according to the invention that the foamed thermoplastic elastomer (ie the foamed intermediate layer) by injection into a

Space between carrier 1 and foil is connected to these.

According to the invention, it is advantageously possible, a so-called Shallow Soft

To achieve property, i. both with an IMG surface and at the same time a soft feel (indentation softness). Preferably, the very thin film (i.e., the film) is in-line (coextruded) with a foam backing as a foamed interlayer which provides very good interlayer adhesion and avoids additional downstream processes for applying the foam. The thus-equipped film with foamed intermediate layer receives a scar in the in-mold graining process. As a result, a very uniform and concise surface structure is obtained, wherein

different structures or even lettering and symbols can be introduced. Subsequently, the film is applied to a previously produced carrier preferably made of a thermoplastic or natural fibers or a

Applied combination of both or provided in a direct process by injection molding with a carrier. Furthermore, it is possible according to the invention to realize a so-called deep soft property. This variant is based on the use of a very thin film or a very thin film (of, for example, 400 μm thickness) instead of the film-like or skin-like decoration. This very thin film or film consists of the preferably coextruded main layer 3 shown in FIG. 1 and a very thin cover layer 4 in relation thereto (the main and outer layers together form the film). The main layer has a softness and consists of one or more polyolefinic layers; The topcoat consists of a varnish which is essentially for very good surface properties such as

Scratch resistance, chemical resistance or adjustable gloss level ensures. By using this very thin film or foil, the weight is significantly reduced. Furthermore, the invention is based on that the soft component 2 shown in FIG. 1 or the foamed intermediate layer likewise preferably consists of a polyolefinic material, whereby a very good adhesion on the one hand to the main layer of the very thin film and on the other hand to the likewise polyolefinic carrier 1 is achieved. The soft component 2 (or the foamed intermediate layer) can consist of a TPE, TPE-E or a TPE-S, which can preferably be foamed either chemically or physically; Alternatively, it is also possible according to the invention, the soft

Component (i.e., the foamed interlayer) as a PUR foam, which preferably but not necessarily adheres to substrates and very thin film through adhesion promoters. In addition, due to the injection pressure and the high temperature of the soft component in the very thin, previously uncoloured film

Tool a scar be imprinted in the tool surface

was introduced.

reference numeral

carrier

 foamed liner

main layer

 topcoat

Claims

claims 1 . Equipment part for the interior of a motor vehicle comprising a  Substrate and a multilayer film associated therewith, wherein the  Multilayer film comprises polypropylene (PP) or a polypropylene copolymer, characterized in that between the substrate and the  Multilayer film is arranged a foamed intermediate layer, wherein the elasticity of the intermediate layer is greater than the elasticity of the multilayer film. 2. Equipment part according to claim 1, characterized in that the  Layer thickness of the multilayer film is less than or equal to about 750 μιτι, preferably less than or equal to about 500 μιτι, most preferably less than or equal to 400 μιτι or in the range of greater than or equal to about 300 μιτι and less than or equal to about 400 μιτι , 3. Equipment part according to one of the preceding claims, characterized  in that the multilayer film has a lacquer layer on its side facing away from the substrate and the foamed intermediate layer. 4. Equipment part according to claim 3, characterized in that the  Lacquer layer has a layer thickness of about 1 μιτι to about 30 μιτι, preferably from about 5 μιτι to about 20 μιτι, more preferably from about 10 μιτι. 5. Equipment part according to claim 3 or 4, characterized in that the lacquer layer is provided polyurethane-based, preferably a reactive  Two-component polyurethane system includes. 6. Equipment part according to claim 3, 4 or 5, characterized in that the lacquer layer has a high scratch resistance and / or a high Chemical resistance and / or high UV resistance and / or high write insensitivity. 7. fitting part according to one of claims 3 to 6, characterized in that the lacquer layer has a matte appearance visually and also has a haptic soft touch impression. 8. fitting according to one of the preceding claims, characterized  in that the multilayer film is a polypropylene or  Polypropylene copolymer having a melt flow index (MFI) of less than or equal to 1 g / 10 min (230 ° C / 2.16 kg), wherein the polypropylene is preferably a polypropylene block copolymer (PP-BC) is. 9. fitting according to claim 8, characterized in that the  Polypropylene or polypropylene copolymer (PP-BC) with a  thermoplastic elastomer (TPE) is blended, wherein the proportion of the thermoplastic elastomer (TPE) is preferably less than or equal to 30% based on the mixture. 10. fitting part according to one of claims 7 or 8, characterized  in that the further layer is a thermoplastic material, preferably PS or PS copolymer, polyolefin, polyolefin copolymer or a thermoplastic elastomer, preferably TPE-S, TPE-V, TPE-E or TPE-U, or a combination of at least two Materials is. 1 1. Equipment part according to one of claims 7 to 10, characterized in that the multi-layer film has a cover layer, wherein the cover layer comprises PET, PMMA or PC or a mixture thereof. 12. Equipment part according to one of claims 7 to 1 1, characterized in that the layer and the further layer by a bonding agent  connected to each other. 13. Equipment part according to one of the preceding claims, characterized  in that the multilayer film is a printing process having applied decorative layer. 14. Equipment according to one of the preceding claims, characterized in that the substrate is a processed in the form of a melt or processed in the form of mats thermoplastic material. 15. Equipment according to claim 14, characterized in that the material processed in the form of a melt PP, ABS, ABS and PC, PA, TPE, TPV or a mixture of at least two of these materials. 16. Equipment part according to one of claims 14 or 15, characterized  in that the material processed in the form of a melt has fillers. 17. Equipment part according to one of claims 14 to 16, characterized  characterized in that in the form of mats processed thermoplastic material fibers and / or a binder. 18. A method for producing a trim part for the interior of a motor vehicle, wherein the fitting part comprises a substrate and a multilayer film connected thereto, wherein the multilayer film  Polypropylene (PP) or a polypropylene copolymer, characterized in that between the substrate and the multilayer film, a foamed intermediate layer is arranged, wherein the elasticity of the foamed intermediate layer is greater than the elasticity of the multilayer film, wherein the multilayer film and the foamed intermediate layer in a Coextrusion step are produced. 19. A method for producing a piece of equipment according to claim 18, characterized in that the layer thickness of the multilayer film is less than or equal to about 750 μιτι, preferably less than or equal to about 500 μιτι, most preferably less than or equal to 400 μιτι or im Range of greater than or equal to about 300 μιτι and less than or equal to about 400 μιτι. 20. A method for producing a piece of equipment according to any one of claims 18 or 19, characterized in that the multilayer film on its the Substrate and the foamed intermediate layer facing away from a  Paint layer has. 21. A method for producing a piece of equipment according to claim 20, characterized in that the lacquer layer has a layer thickness of about 1 μιη to about 30 μιη, preferably from about 5 μιη to about 20 μιη, more preferably of about 10 μιη. 22. A method for producing a piece of equipment according to claim 20 or 21, characterized in that the lacquer layer is provided polyurethane-based, preferably comprises a reactive two-component polyurethane system. 23. A process for producing a piece of equipment according to claim 20, 21 or 22, characterized in that the lacquer layer has a high  Scratch resistance and / or high chemical resistance and / or high UV resistance and / or high write insensitivity. 24. A method for producing a piece of equipment according to any one of claims 20 to 23, characterized in that the lacquer layer optically has a dull appearance and also has a haptic soft touch impression. 25. A method for producing a piece of equipment according to any one of claims 18 to 24, characterized in that the multilayer film a  Polypropylene or polypropylene copolymer having a melt flow index (MFI) of less than or equal to 1 g / 10 min (230 ° C / 2.16 kg), the polypropylene preferably comprising a polypropylene block copolymer (PP- BC). 26. A process for producing a piece of equipment according to claim 25, characterized in that the polypropylene or polypropylene copolymer (PP-BC) is blended with a thermoplastic elastomer (TPE), wherein the proportion of the thermoplastic elastomer (TPE) is preferably less than or is equal to 30% based on the mixture. 27. A method for producing a piece of equipment according to one of claims 24 to 26, characterized in that the further layer a  thermoplastic material, preferably PS or PS copolymer, polyolefin, polyolefin copolymer or a thermoplastic elastomer, preferably TPE-S, TPE-V, TPE-E or TPE-U, or a combination of at least two materials. 28. A method for producing a piece of equipment according to one of claims 24 to 27, characterized in that the multilayer film a  Cover layer, wherein the cover layer comprises PET, PMMA or PC or a mixture thereof. 29. A method for producing a piece of equipment according to any one of claims 24 to 28, characterized in that the layer and the further layer are interconnected by a bonding agent. 30. A method for producing a piece of equipment according to any one of claims 18 to 29, characterized in that the multilayer film in the  Printing method applied decorative layer has. 31. Method for producing a piece of equipment according to one of claims 18 to 30, characterized in that the substrate is processed in the form of a melt or processed in the form of mats  thermoplastic material is. 32. A method for producing a piece of equipment according to claim 31, characterized in that the material processed in the form of a melt PP, ABS, ABS and PC, PA, TPE, TPV or a mixture of at least two of these materials. 33. A method for producing a piece of equipment according to any one of claims 31 or 32, characterized in that in the form of a melt processed material has fillers. 34. A method for producing a piece of equipment according to any one of claims 31 to 33, characterized in that processed in the form of mats thermoplastic material fibers and / or a binder. 35. multilayer film, wherein the multilayer film is polypropylene (PP) or a  Polypropylene copolymer, characterized in that the  Multilayer film is provided together with a foamed intermediate layer, wherein the elasticity of the intermediate layer is greater than the elasticity of the multilayer film. 36. Multilayer film according to claim 35, characterized in that the  Layer thickness of the multilayer film is less than or equal to about 750 μιτι, preferably less than or equal to about 500 μιτι, most preferably less than or equal to 400 μιτι or in the range of greater than or equal to about 300 μιτι and less than or equal to about 400 μιτι , 37. Multilayer film according to one of the preceding claims, characterized  characterized in that the multilayer film on its the foamed  Interlayer facing away from a lacquer layer. 38. Multilayer film according to claim 37, characterized in that the  Lacquer layer has a layer thickness of about 1 μιτι to about 30 μιτι, preferably from about 5 μιτι to about 20 μιτι, more preferably from about 10 μιτι. 39. Multilayer film according to claim 37 or 38, characterized in that the lacquer layer is provided polyurethane-based, preferably comprises a reactive two-component polyurethane system. 40. Multilayer film according to claim 37, 38 or 39, characterized in that the lacquer layer has a high scratch resistance and / or a high chemical resistance and / or a high UV resistance and / or a has high write insensitivity. 41. Multilayer film according to one of claims 37 to 40, characterized  characterized in that the lacquer layer has a matte appearance visually and also has a haptic soft touch impression. 42. Multilayer film according to one of claims 35 to 41, characterized  in that the multilayer film is a polypropylene or  Polypropylene copolymer having a melt flow index (MFI) of less than or equal to 1 g / 10 min (230 ° C / 2.16 kg), wherein the polypropylene is preferably a polypropylene block copolymer (PP-BC) is. 43. Multilayer film according to claim 42, characterized in that the  Polypropylene or polypropylene copolymer (PP-BC) with a  thermoplastic elastomer (TPE) is blended, wherein the proportion of the thermoplastic elastomer (TPE) is preferably less than or equal to 30% based on the mixture. 44. Multilayer film according to one of claims 41 or 42, characterized  in that the further layer is a thermoplastic material, preferably PS or PS copolymer, polyolefin, polyolefin copolymer or a thermoplastic elastomer, preferably TPE-S, TPE-V, TPE-E or TPE-U, or a combination of at least two Materials is. 45. Multilayer film according to one of claims 41 to 44, characterized  in that the multilayer film has a cover layer, wherein the cover layer comprises PET, PMMA or PC or a mixture thereof. 46. Multilayer film according to one of claims 41 to 45, characterized  in that the layer and the further layer are connected to one another by a bonding agent. 47. Multilayer film according to one of claims 35 to 46, characterized in that the multilayer film is a printing process having applied decorative layer. 48. Multilayer film according to one of claims 35 to 47, characterized  in that the substrate is a melt-processed or in the form of mats processed thermoplastic material. 49. Multilayer film according to claim 48, characterized in that the material processed in the form of a melt is PP, ABS, ABS and PC, PA, TPE, TPV or a mixture of at least two of these materials. 50. Multilayer film according to one of claims 48 or 49, characterized  in that the material processed in the form of a melt has fillers. 51. Multilayer film according to one of claims 48 to 49, characterized  characterized in that in the form of mats processed thermoplastic material fibers and / or a binder. 52. Use of a multilayer film according to one of claims 35 to 51,  in particular for the production of a fitting for the interior of a motor vehicle, the fitting comprising a substrate connected to the multilayer film, the multilayer film comprising polypropylene (PP) or a polypropylene copolymer, characterized in that between the substrate and the multilayer film foamed  Liner is arranged.