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WO2008019707A1 - Three-dimensional component and method for producing the same - Google Patents

Three-dimensional component and method for producing the same Download PDF

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Publication number
WO2008019707A1
WO2008019707A1 PCT/EP2006/065288 EP2006065288W WO2008019707A1 WO 2008019707 A1 WO2008019707 A1 WO 2008019707A1 EP 2006065288 W EP2006065288 W EP 2006065288W WO 2008019707 A1 WO2008019707 A1 WO 2008019707A1
Authority
WO
WIPO (PCT)
Prior art keywords
films
film
plastic element
injection
electroluminescent
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.)
Ceased
Application number
PCT/EP2006/065288
Other languages
German (de)
French (fr)
Inventor
Andreas Schlarb
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.)
Schreiner Group GmbH and Co KG
Original Assignee
Schreiner Group GmbH and Co KG
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 Schreiner Group GmbH and Co KG filed Critical Schreiner Group GmbH and Co KG
Priority to PCT/EP2006/065288 priority Critical patent/WO2008019707A1/en
Priority to EP06764325A priority patent/EP2051839A1/en
Publication of WO2008019707A1 publication Critical patent/WO2008019707A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14467—Joining articles or parts of a single article
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14778—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the article consisting of a material with particular properties, e.g. porous, brittle
    • B29C45/14811—Multilayered articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/022—Particular heating or welding methods not otherwise provided for
    • B29C65/028—Particular heating or welding methods not otherwise provided for making use of inherent heat, i.e. the heat for the joining comes from the moulding process of one of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1222—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a lapped joint-segment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1224—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a butt joint-segment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/45—Joining of substantially the whole surface of the articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14836—Preventing damage of inserts during injection, e.g. collapse of hollow inserts, breakage
    • B29C2045/14844—Layers protecting the insert from injected material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/481—Non-reactive adhesives, e.g. physically hardening adhesives
    • B29C65/4815—Hot melt adhesives, e.g. thermoplastic adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/483—Reactive adhesives, e.g. chemically curing adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/483—Reactive adhesives, e.g. chemically curing adhesives
    • B29C65/485—Multi-component adhesives, i.e. chemically curing as a result of the mixing of said multi-components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2715/00—Condition, form or state of preformed parts, e.g. inserts
    • B29K2715/006—Glues or adhesives, e.g. hot melts or thermofusible adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
    • B29K2995/0036—Electroluminescent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0087—Wear resistance

Definitions

  • the present invention relates to a three-dimensionally designed light-emitting component and a method for producing the same. Specifically, it relates to such a component and method based on at least one electroluminescent film.
  • electroluminescent films consist of at least the following layers: a base film, a first electrode layer, a layer with luminescent pigments, a second, transparent electrode layer and a transparent cover film. Additional auxiliary layers such as barrier layers or dielectrics may be present.
  • the cover and / or base films can also serve as the electrode layer at the same time.
  • a segmentation of the electrode layer must be made, while the luminescent pigment layer both segmented segmented and unsegmented structured is controlled.
  • a segmentation of the pigment layer is usually carried out by printing different color pigment segments, while the electrode layers are effected by interrupting the electrical contacts within the layer and individual contacting of the segments thus obtained.
  • electroluminescent films are desired not only on flat planes, but also in applications where decorative devices have uneven surfaces.
  • bonding of electroluminescent films to such components is possible only if the component does not have any irregular irregularities or strong upper surfaces. Has surface curvatures, as otherwise easy to air bubbles are included in the application or the adhesive electroluminescent composite at the edge sets up.
  • German Patent Application DE 19717740 A1 therefore proposes a method in which an electroluminescent film is placed in an injection mold in the so-called in-mold process and back-injected with a hot, liquid plastic.
  • the film may have already been deformed in advance by deep drawing.
  • this poses the problem that the complex film structure can be easily damaged by the hot liquid plastic.
  • locally high temperature peaks occur, which locally cause damage to the film structure and thus can render the entire component useless.
  • an electroluminescent film is usually back-injected with this in-mold process in such a way that it forms the surface of a component after injection molding.
  • electroluminescent films are usually back-injected with this in-mold process in such a way that it forms the surface of a component after injection molding.
  • the object of the invention is to protect a film layer (in particular an electroluminescent film) that is sensitive to back-injection in an in-mold process and / or to protect a back-sprayed film (in particular an electroluminescent film) from external mechanical stress.
  • a film layer in particular an electroluminescent film
  • a back-sprayed film in particular an electroluminescent film
  • the damage of electroluminescent film should be avoided in order to prevent a risk from an exposed electrical device.
  • the invention solves the problem of providing an injection-molded plastic element with at least one back-injected film (in particular an electroluminescent film), which ensures that the back-injected film is not impaired in its function and aesthetics by the back injection and / or at the back-injected film is insulated to the outside.
  • This object is achieved according to claim 1 by a method for back-injection of films, at the same time introduced two independent films in an injection mold and an activatable layer which is present on at least one of the two films is activated by the injection molding process, that the films be connected to each other. Furthermore, the object is achieved by a plastic element according to claim 13, which consists of at least two attached to its surface films, of which the film lying directly on the surface by means of an activatable layer with the lower lying and the lower lying is connected by a fusion bond with the remaining plastic element. Particularly preferred embodiments are claimed in subclaims 2-12 and 14-19, respectively.
  • FIG. 1 shows a sectional view of an injection molding tool with inserted foils for explaining a particularly preferred embodiment of a production process according to the invention
  • FIG. 2 shows a first particularly preferred embodiment of a plastic element according to the invention
  • FIG. 3 shows a second particularly preferred embodiment of a plastic element according to the invention.
  • FIG. 1 illustrates a sectional view of a production process according to the invention.
  • surface 104 represents the wall of an injection molding tool which is equipped with air suction channels 105. tet is.
  • a first film in this particular case, an electroluminescent structure 102, inserted.
  • an activatable layer 103 is applied.
  • a second hereinafter referred to as a protective film 101 is inserted film.
  • a protective film may also be understood to mean a non-flexible substrate, such as a plastic plate. If necessary, the protective film 101 can also be pre-formed, for example deep-drawn.
  • Both mutually independent films are inserted into the injection mold and, if necessary, fixed therein so that they do not change their position during a back injection process.
  • the indicated Heilabsaugkanäle 105 serve in the wall 104, which generate a vacuum that holds the films in position.
  • An electrostatic charging of the foils 102 and 101 and the wall 104 is also possible in order to achieve an electrostatic fixation.
  • fixing points may be provided in the wall 104, in which at least one of the film is clamped, for example.
  • a hot injection molding compound is then injected into the tool, which firmly bonds to the underside surface of the protective film 101 by fusion. Due to the high temperatures occurring, however, the heat is still transmitted through the protective film 101 to the activatable layer, which is thereby activated and thus automatically causes a connection of the two films 101 and 102.
  • the invention therefore consists in a coupling of two processes, which usually take place separately from each other: the injection-molding process and the lamination of a film on the other. If, however, these two processes were carried out separately, a much worse result would be expected: If the first film 101 is first laminated onto the protective film 102 with the aid of a bonding layer (for example a pressure-sensitive adhesive or a hot-melt adhesive) and this composite is back-injected the danger that the connection layer due the influence of temperature of the back injection is re-activated or impaired in their effect and thereby the connection between the films is weakened so that a delamination or a shift in the position of the first film is to be feared.
  • a bonding layer for example a pressure-sensitive adhesive or a hot-melt adhesive
  • an activatable layer 103 As an activatable layer 103, according to FIG. 1, a layer additionally applied to the underside of the electroluminescent structure 102, such as, for example, an activatable adhesive, is used.
  • an activatable adhesive is used.
  • the a.undierbaren adhesives are then preferably to select those that are activated or crosslinked especially by heat or by cooling processes after the application or crosslinked, for example, hot melt adhesives, multi-component adhesives or latent reactive adhesives, which react by heat and harden it.
  • the underside of the first film in this case of the electroluminescent structure 102, and / or the upper side of the protective film 101, which will become soft enough at a corresponding temperature and melt on the surface, may also serve as the activatable layer, as a result of which they likewise fuse together can be.
  • the activatable layer may also serve as the activatable layer, as a result of which they likewise fuse together can be.
  • this embodiment of the invention is particularly preferred.
  • the electroluminescent structure 102 used is a piece of film which is precisely tailored to the dimensions of the area which is later used in the plastic element resulting from the production process as illumination. intended to serve.
  • this has the significant advantage that the costly electroluminescent films, which are expensive to produce, are tailored to the application and thus can be produced much more cost-effectively.
  • FIG. 2 shows a first product according to the invention of the process according to the invention.
  • the plastic element 207 has, on its curved surface, a protective film 201 with which an electroluminescent structure 202 is fixed on the underside by means of a layer 203 activated by the back-injection process.
  • a cooled plastic injection molding compound 208 forms the core of the plastic element.
  • FIG. 3 a second embodiment of a plastic element 307 according to the invention is shown in an analogous numbered manner.
  • the essential difference to the product 207 in FIG. 2 is that the protective film 301 is located below the electroluminescent structure 302, i. directly adjacent to the cooled injection molding compound.
  • the embodiment in FIG. 3 is the direct product from the injection molding process, as shown in FIG.
  • the technical advantage of this product is the protection of the sensitive electroluminescent structure 302 from the hot injection molding compound during the back-injection: unwanted (even local) under-flushing of the electroluminescent structure 302 is prevented by the protective film 301.
  • a decoration print image is applied to at least one of the two films.
  • this image to be visible to the viewer from the outside, it must be in the embodiment shown in FIG Fall on the side facing away from the plastic element 308 side of the electroluminescent structure 302 are applied.
  • it can lie both on the side of the electroluminescent structure 202 facing away from the plastic element 208 and on either side of the protective film 201.
  • protective films can also be applied to both sides of the film to be protected, in each case in conjunction with an activatable layer, and joined in the described process. Then the process resembles a lamination of the film to be protected similar to laminator in the office area, at the same time the back injection takes place and this process is only in motion.
  • the invention primarily relates to the concrete problem of an electroluminescent structure to be back-injected, i. a particularly sensitive film composite. However, it generally solves the fundamental task of effective protection or insulation of films in the in-mold process.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

The invention relates to a method for the in-mould lamination of films, in which at least two mutually independent films (101, 201, 301/102, 202, 302) are introduced into an injection mould (104) and an activatable layer (103, 203, 303) that is present at least on one of the two films is activated by the injection-moulding process in such a way that the films are bonded to one another.It also relates to a plastic element (207, 307), which comprises at least two films (201, 301/202, 302) which are attached to its surface and of which one is bonded to the other by means of an activatable layer (203, 303) and the other is bonded to the remaining plastic element (208, 308) by a fusion bond.

Description

Dreidimensionales Bauteil und Verfahren zur Herstellung desselben Three-dimensional component and method for producing the same

Die vorliegende Erfindung betrifft ein dreidimensional gestaltetes lichtemittierendes Bauteil sowie ein Verfahren zur Herstellung desselben. Im spezi- eilen betrifft sie ein solches Bauteil und Verfahren auf Basis mindestens einer elektrolumineszierenden Folie.The present invention relates to a three-dimensionally designed light-emitting component and a method for producing the same. Specifically, it relates to such a component and method based on at least one electroluminescent film.

Elektrolumineszierende Folien bestehen im Grundaufbau prinzipiell aus mindestens folgenden Schichten: Einer Grundfolie, einer ersten Elektrodenschicht, einer Schicht mit Leuchtpigmenten, einer zweiten, transparen- ten Elektrodenschicht und einer transparenten Deckfolie. Zusätzliche Hilfs- schichten wie Barriereschichten oder Dielektrika können vorhanden sein. Auch können die Deck- und/oder Grundfolien gleichzeitig als Elektrodenschicht dienen. Durch Anlegen einer Spannung - bei anorganischen elektrolumineszierenden Aufbauten einer Wechselspannung - wird ein elektri- sches Feld erzeugt, das die Leuchtpigmentschicht zur Lichtemission durch die transparente Elektrode hindurch anregt.Basically, electroluminescent films consist of at least the following layers: a base film, a first electrode layer, a layer with luminescent pigments, a second, transparent electrode layer and a transparent cover film. Additional auxiliary layers such as barrier layers or dielectrics may be present. The cover and / or base films can also serve as the electrode layer at the same time. By applying a voltage - in the case of inorganic electroluminescent structures of an alternating voltage - an electric field is generated which excites the luminescent pigment layer for emitting light through the transparent electrode.

Zusätzlich zum vertikalen Schichtaufbau ist oft eine Strukturierung der Fläche notwendig: Hierzu muß eine Segmentierung der Elektrodenschicht vorgenommen werden, während die Leuchtpigmentschicht sowohl seg- mentiert als auch unsegmentiert strukturiert ansteuerbar ist. Eine Segmentierung der Pigmentschicht erfolgt üblicherweise durch Verdruckung unterschiedlicher Farbpigment-Segmente, während die Elektrodenschichten durch Unterbrechung der elektrischen Kontakte innerhalb der Schicht und Einzelkontaktierung der so gewonnenen Segmente erfolgt.In addition to the vertical layer structure often structuring of the surface is necessary: For this purpose, a segmentation of the electrode layer must be made, while the luminescent pigment layer both segmented segmented and unsegmented structured is controlled. A segmentation of the pigment layer is usually carried out by printing different color pigment segments, while the electrode layers are effected by interrupting the electrical contacts within the layer and individual contacting of the segments thus obtained.

Eine Verwendung elektrolumineszierender Folien ist nicht nur auf flachen Ebenen gewünscht, sondern auch in Anwendungen, wo Dekor-Bauteile unebene Oberflächen aufweisen. Eine Verklebung von elektrolumineszierenden Folien auf derartige Bauteile ist jedoch nur dann möglich, wenn das Bauteil keine allzu unregelmäßigen Unebenheiten oder starke Ober- flächenkrümmungen aufweist, da bei der Applikation sonst leicht Luftblasen eingeschlossen werden oder sich der klebende elektrolumineszieren- de Verbund am Rande aufstellt.Use of electroluminescent films is desired not only on flat planes, but also in applications where decorative devices have uneven surfaces. However, bonding of electroluminescent films to such components is possible only if the component does not have any irregular irregularities or strong upper surfaces. Has surface curvatures, as otherwise easy to air bubbles are included in the application or the adhesive electroluminescent composite at the edge sets up.

In der deutschen Patentanmeldung DE 19717740 A1 wird daher ein Ver- fahren vorgeschlagen, bei dem eine elektrolumineszierende Folie im sogenannten Inmould-Verfahren in eine Spritzgussform eingelegt und mit einem heißen, flüssigen Kunststoff hinterspritzt wird. Die Folie kann hierzu im Vorfeld durch Tiefziehen bereits verformt worden sein. Hierbei stellt sich jedoch das Problem, dass der komplexe Folienaufbau durch den heißen flüssigen Kunststoff leicht beschädigt werden kann. Zudem treten lokal hohe Temperaturspitzen auf, was lokal Beschädigungen des Folien- aufbaus hervorrufen und damit eine Unbrauchbarkeit des gesamten Bauteils zur Folge haben kann.German Patent Application DE 19717740 A1 therefore proposes a method in which an electroluminescent film is placed in an injection mold in the so-called in-mold process and back-injected with a hot, liquid plastic. The film may have already been deformed in advance by deep drawing. However, this poses the problem that the complex film structure can be easily damaged by the hot liquid plastic. In addition, locally high temperature peaks occur, which locally cause damage to the film structure and thus can render the entire component useless.

Zugleich wird mit diesem Inmould-Verfahren üblicherweise eine elektrolu- mineszierende Folie so hinterspritzt, dass sie nach dem Hinterspritzen die Oberfläche eines Bauteils bildet. Speziell in Automobil-Anwendungen wird jedoch mehr und mehr dazu übergegangen, elektronische Bauteile, also auch Elektrolumineszenz-Folien, doppelt zu isolieren.At the same time, an electroluminescent film is usually back-injected with this in-mold process in such a way that it forms the surface of a component after injection molding. Especially in automotive applications, however, more and more is increasingly going to double-isolate electronic components, including electroluminescent films.

Verallgemeinert ausgedrückt liegt der Erfindung die Aufgabe zugrunde, eine für Hinterspritzung empfindliche Folienschicht (insbesondere eine Elektrolumineszenz-Folie) in einem Inmould-Verfahren zu schützen und/oder eine hinterspritzte Folie (insbesondere eine Elektrolumineszenz- Folie) vor mechanischen Belastungen von außen zu schützen. Insbesondere die Beschädigung von Elektroluminszenz-Folie soll hierdurch vermie- den werden, um eine Gefährdung durch ein offenliegendes elektrisches Gerät zu verhindern. Weiterhin löst die Erfindung die Aufgabe, ein spritzgegossenes Kunststoff-Element mit mindestens einer hinterspritzten Folie (insbesondere einer Elektrolumineszenz-Folie) bereitzustellen, bei dem sichergestellt ist, dass die hinterspritzte Folie in ihrer Funktion und Ästhetik nicht durch die Hinterspritzung beeinträchtigt ist und/oder bei dem die hinterspritzte Folie nach außen isoliert ist. Diese Aufgabe wird gemäß Anspruch 1 gelöst durch ein Verfahren zur Hinterspritzung von Folien, wobei gleichzeitig zwei voneinander unabhängige Folien in ein Spritzgusswerkzeug eingebracht und eine aktivierbare Schicht, die mindestens auf einer der beiden Folien vorhanden ist, durch den Spritzgießprozess so aktiviert wird, dass die Folien miteinander verbunden werden. Weiterhin wird die Aufgabe gelöst durch ein Kunststoff- Element gemäß Anspruch 13, das aus mindestens zwei an seiner Oberfläche angebrachten Folien besteht, von denen die direkt an der Oberfläche liegende Folie mittels einer aktivierbaren Schicht mit der weiter unten lie- genden und die weiter unten liegende durch eine Schmelzverbindung mit dem restlichen Kunststoff-Element verbunden ist. Besonders bevorzugte Ausführungsformen sind in den Unteransprüchen 2-12 bzw. 14-19 beansprucht.In general terms, the object of the invention is to protect a film layer (in particular an electroluminescent film) that is sensitive to back-injection in an in-mold process and / or to protect a back-sprayed film (in particular an electroluminescent film) from external mechanical stress. In particular, the damage of electroluminescent film should be avoided in order to prevent a risk from an exposed electrical device. Furthermore, the invention solves the problem of providing an injection-molded plastic element with at least one back-injected film (in particular an electroluminescent film), which ensures that the back-injected film is not impaired in its function and aesthetics by the back injection and / or at the back-injected film is insulated to the outside. This object is achieved according to claim 1 by a method for back-injection of films, at the same time introduced two independent films in an injection mold and an activatable layer which is present on at least one of the two films is activated by the injection molding process, that the films be connected to each other. Furthermore, the object is achieved by a plastic element according to claim 13, which consists of at least two attached to its surface films, of which the film lying directly on the surface by means of an activatable layer with the lower lying and the lower lying is connected by a fusion bond with the remaining plastic element. Particularly preferred embodiments are claimed in subclaims 2-12 and 14-19, respectively.

Anhand der Figuren 1-3 wird die Erfindung im Folgenden näher beschrie- ben. Dabei sind die Zeichnungen nicht maßstäblich zu verstehen. Besonders die Schichtdicken von Folien sind aus Anschaulichkeitsgründen stark übertrieben dargestellt.With reference to the figures 1-3, the invention will be described in more detail below. The drawings are not to scale. In particular, the layer thicknesses of films are greatly exaggerated for reasons of clarity.

Es zeigenShow it

Figur 1 in Shcnittdarstellung ein Spritzgusswerkzeug mit eingelegten FoIi- en zur Erläuterung einer besonders bevorzugten Ausführungsform eines erfindungsgemäßen Herstellungsprozesses,1 shows a sectional view of an injection molding tool with inserted foils for explaining a particularly preferred embodiment of a production process according to the invention,

Figur 2 eine erste besonders bevorzugte Ausführungsform eines erfindungsgemäßen Kunststoff-Elements,FIG. 2 shows a first particularly preferred embodiment of a plastic element according to the invention,

Figur 3 eine zweite besonders bevorzugte Ausführungsform eines erfin- dungsgemäßen Kunststoff-Elements.3 shows a second particularly preferred embodiment of a plastic element according to the invention.

In Figur 1 wird ein erfindungsgemäßer Herstellungsprozess in Schnittansicht veranschaulicht: Dabei stellt die Fläche 104 die Wandung eines Spritzgusswerkzeuges dar, welche mit Luftabsaugkanälen 105 ausgestat- tet ist. In das Werkzeug wird eine erste Folie, in diesem speziellen Fall ein Elektrolumineszenz-Aufbau 102, eingelegt. Auf der Rückseite dieser ersten Folie, d.h. die der Wandung abgewandte Seite, ist eine aktivierbare Schicht 103 aufgebracht. Hierunter wird eine zweite, im Folgenden als Schutzfolie 101 bezeichnete Folie eingelegt. Unter einer Schutzfolie kann auch ein nicht flexibles Substrat wie etwa eine Kunststoff-Platte verstanden werden. Die Schutzfolie 101 kann im Bedarfsfall auch vorverformt, beispielsweise tiefgezogen, vorliegen. Beide voneinander unabhängige Folien sind in das Spritzgusswerkzeug eingelegt und bei Bedarf darin so fixiert, dass sie während eines Hinterspritzungsprozesses nicht ihrer Lage ändern. Hierzu können beispielsweise die angedeuteten Luftabsaugkanäle 105 in der Wandung 104 dienen, die ein Vakuum erzeugen, das die Folien in Position hält. Möglich ist auch eine elektrostatische Aufladung der Folien 102 und 101 und der Wandung 104, um eine elektrostatische Fixie- rung zu erreichen. Weiterhin können auch Fixierungspunkte in der Wandung 104 vorgesehen sein, in die mindestens eine der Folie beispielsweise eingespannt wird.FIG. 1 illustrates a sectional view of a production process according to the invention. In this case, surface 104 represents the wall of an injection molding tool which is equipped with air suction channels 105. tet is. In the tool, a first film, in this particular case, an electroluminescent structure 102, inserted. On the back of this first film, ie the side facing away from the wall, an activatable layer 103 is applied. Below this, a second, hereinafter referred to as a protective film 101 is inserted film. A protective film may also be understood to mean a non-flexible substrate, such as a plastic plate. If necessary, the protective film 101 can also be pre-formed, for example deep-drawn. Both mutually independent films are inserted into the injection mold and, if necessary, fixed therein so that they do not change their position during a back injection process. For this purpose, for example, the indicated Luftabsaugkanäle 105 serve in the wall 104, which generate a vacuum that holds the films in position. An electrostatic charging of the foils 102 and 101 and the wall 104 is also possible in order to achieve an electrostatic fixation. Furthermore, fixing points may be provided in the wall 104, in which at least one of the film is clamped, for example.

In einem Spritzgußprozess wird nun eine heiße Spritzgussmasse in das Werkzeug gespritzt, die sich mit der unterseitigen Oberfläche der Schutz- folie 101 durch Verschmelzung fest verbindet. Durch die auftretenden hohen Temperaturen wird die Hitze jedoch noch durch die Schutzfolie 101 hindurch auf die aktivierbare Schicht übertragen, die hierdurch aktiviert wird und damit automatisch eine Verbindung der beiden Folien 101 und 102 hervorruft.In an injection molding process, a hot injection molding compound is then injected into the tool, which firmly bonds to the underside surface of the protective film 101 by fusion. Due to the high temperatures occurring, however, the heat is still transmitted through the protective film 101 to the activatable layer, which is thereby activated and thus automatically causes a connection of the two films 101 and 102.

Die Erfindung besteht daher in einer Koppelung zweier Vorgänge, die üblicherweise getrennt voneinander ablaufen: Der Hinterspritzvorgang und die Kaschierung einer Folie auf die andere. Würden diese beiden Prozesse jedoch getrennt voneinander durchgeführt, so wäre ein weitaus schlechteres Ergebnis zu erwarten: Kaschiert man zuerst mit Hilfe einer Verbindungs- schicht (beispielsweise eines Haftklebstoffs oder eine Heißschmelzklebers) die erste Folie 101 auf die Schutzfolie 102 und hinterspritzt diesen Verbund, so besteht die Gefahr, dass die Verbindungsschicht aufgrund des Temperatureinflusses beim Hinterspritzen wieder aktiviert oder in ihrer Wirkung beeinträchtigt wird und dadurch die Verbindung zwischen den Folien so geschwächt wird, dass eine Delamination oder eine Verschiebung der Lage der ersten Folie zu befürchten ist. Kaschiert man hingegen erst nach der Hinterspritzung der Schutzfolie 101 auf die erste Folie 102 auf, so ergeben sich an der Oberfläche des Spritzgussteils Unebenheiten und damit Angriffspunkte für ungewollte Außeneinwirkungen, was speziell im Fall eines Elektrolumineszenz-Aufbau ein Produktrisiko bedeutet. Durch die Kombination von Kaschierung und Hinterspritzung in einem Prozeß werden somit bei weitem nicht nur Arbeitsschritte gespart, sondern zusätzlich eine höhere Prozess- und Produktsicherheit erreicht.The invention therefore consists in a coupling of two processes, which usually take place separately from each other: the injection-molding process and the lamination of a film on the other. If, however, these two processes were carried out separately, a much worse result would be expected: If the first film 101 is first laminated onto the protective film 102 with the aid of a bonding layer (for example a pressure-sensitive adhesive or a hot-melt adhesive) and this composite is back-injected the danger that the connection layer due the influence of temperature of the back injection is re-activated or impaired in their effect and thereby the connection between the films is weakened so that a delamination or a shift in the position of the first film is to be feared. If, on the other hand, one laminates on the first film 102 only after the back-injection of the protective film 101, then unevenness and hence points of contact for undesired external influences arise on the surface of the injection-molded article, which means a product risk, especially in the case of an electroluminescent structure. The combination of lamination and back-injection in one process not only saves work steps, but also achieves higher process and product safety.

Als aktivierbare Schicht 103 dient gemäß Figur 1 eine zusätzlich auf die Unterseite des Elektrolumineszenz-Aufbaus 102 aufgebrachte Schicht, wie beispielsweise ein aktivierbarer Klebstoff. Unter den a.ktivierbaren Klebstoffen sind dann vorzugsweise solche zu wählen, die speziell durch Hitze oder durch Abkühlungsprozesse nach der Applikation aktiviert bzw. vernetzt werden, zum Beispiel Heißschmelzklebstoffe, Mehrkomponentenklebstoffe oder latent reaktive Klebstoffe, die durch Wärmezufuhr reagieren und dadurch aushärten.As an activatable layer 103, according to FIG. 1, a layer additionally applied to the underside of the electroluminescent structure 102, such as, for example, an activatable adhesive, is used. Among the a.aktivierbaren adhesives are then preferably to select those that are activated or crosslinked especially by heat or by cooling processes after the application or crosslinked, for example, hot melt adhesives, multi-component adhesives or latent reactive adhesives, which react by heat and harden it.

Als aktivierbare Schicht kann jedoch auch die Unterseite der ersten Folie, hier also des Elektrolumineszenz-Aufbaus 102, und/oder die Oberseite der Schutzfolie 101 dienen, die bei einer entsprechenden Temperatur weich genug werden wird und an der Oberfläche schmelzen, wodurch sie ebenfalls miteinander verschmolzen werden können. Üblicherweise ist jedoch durch die Ausstattung einer der beiden Oberflächen mit einem Klebstoff ein deutlich besser kontrollierbarer Prozess zu erreichen, weshalb diese Ausführungsform der Erfindung besonders bevorzugt ist.However, the underside of the first film, in this case of the electroluminescent structure 102, and / or the upper side of the protective film 101, which will become soft enough at a corresponding temperature and melt on the surface, may also serve as the activatable layer, as a result of which they likewise fuse together can be. Usually, however, by equipping one of the two surfaces with an adhesive to achieve a significantly better controllable process, which is why this embodiment of the invention is particularly preferred.

In einer besonders bevorzugten Ausführungsform der Erfindung wird als Elektrolumineszenz-Aufbau 102 ein Folienstück verwendet, welches ge- nau auf die Maße des Bereichs konfektioniert ist, der später in dem aus dem Herstellungsprozess resultierenden Kunststoff-Element als Beleuch- tungsbereich dienen soll. Im Gegensatz zum vollflächigen Hinterspritzen einer elektrolumineszierenden Folie wie im Stand der Technik ergibt sich hier der wesentliche Vorteil, dass die in der Herstellung teuren Elektrolu- mineszenzfolien auf die Anwendung zugeschnitten und damit deutlich ko- stengünstiger zu produzieren sind.In a particularly preferred embodiment of the invention, the electroluminescent structure 102 used is a piece of film which is precisely tailored to the dimensions of the area which is later used in the plastic element resulting from the production process as illumination. intended to serve. In contrast to full-surface back-injection of an electroluminescent film, as in the prior art, this has the significant advantage that the costly electroluminescent films, which are expensive to produce, are tailored to the application and thus can be produced much more cost-effectively.

In Figur 2 ist ein erstes erfindungsgemäßes Produkt des erfindungsgemäßen Prozesses dargestellt. Das Kunststoff-Element 207 weist an seiner gekrümmten Oberfläche eine Schutzfolie 201 auf, mit der unterseitig mittels einer durch den Hinterspritzungsprozess aktivierten Schicht 203 ein Elektrolumineszenz-Aufbau 202 fixiert ist. Eine erkaltete Kunststoff- Spritzgußmasse 208 bildet das Kernstück des Kunststoff-Elements.FIG. 2 shows a first product according to the invention of the process according to the invention. The plastic element 207 has, on its curved surface, a protective film 201 with which an electroluminescent structure 202 is fixed on the underside by means of a layer 203 activated by the back-injection process. A cooled plastic injection molding compound 208 forms the core of the plastic element.

In Figur 3 ist analog nummeriert eine zweite Ausführungsform eines erfindungsgemäßen Kunststoff-Elements 307 dargestellt. Der wesentliche Unterschied zu dem Produkt 207 in Figur 2 besteht darin, dass die Schutzfo- lie 301 hier unterhalb des Elektrolumineszenz-Aufbaus 302, d.h. direkt angrenzend an die erkaltete Spritzgussmasse liegt.In FIG. 3, a second embodiment of a plastic element 307 according to the invention is shown in an analogous numbered manner. The essential difference to the product 207 in FIG. 2 is that the protective film 301 is located below the electroluminescent structure 302, i. directly adjacent to the cooled injection molding compound.

Die Ausführung in Figur 3 ist das direkte Produkt aus dem Spritzgusspro- zess, wie er in Figur 1 dargestellt wurde. Der technische Vorteil, den dieses Produkt aufweist, ist der Schutz des empfindlichen Elektrolumines- zenz-Aufbaus 302 vor der heißen Spritzgussmasse während des Hinter- spritzens: Ein ungewolltes (auch lokales) Unterspülen des Elektrolumineszenz-Aufbaus 302 wird durch die Schutzfolie 301 verhindert.The embodiment in FIG. 3 is the direct product from the injection molding process, as shown in FIG. The technical advantage of this product is the protection of the sensitive electroluminescent structure 302 from the hot injection molding compound during the back-injection: unwanted (even local) under-flushing of the electroluminescent structure 302 is prevented by the protective film 301.

Hingegen dient die Schutzfolie 201 aus Figur 2, die hier an der Oberseite des Kunststoff-Elements 207 liegt, der zusätzlichen (in erster Linie elektri- sehen) Isolierung des Elektrolumineszenz-Aufbaus 202.On the other hand, the protective film 201 from FIG. 2, which here lies on the upper side of the plastic element 207, serves for the additional (primarily electrical) insulation of the electroluminescent structure 202.

Eine weitere besonders bevorzugte Ausführungsform der Erfindung sieht vor, dass auf mindestens einer der beiden Folie ein Dekorationsdruckbild aufgebracht ist. Damit dieses Druckbild für den Betrachter von außen sichtbar ist, muß es in der in Figur 3 gezeigten Ausführungsform auf jeden Fall auf die vom Kunststoff-Element 308 weg zeigende Seite des Elektro- lumineszenz-Aufbaus 302 aufgebracht werden. In der In Figur 2 gezeigten Ausführungsform hingegen kann es sowohl auf der vom Kunststoff-Element 208 weg zeigenden Seite des Elektrolumineszenz-Aufbaus 202 liegen als auch auf jeder der beiden Seiten der Schutzfolie 201.Another particularly preferred embodiment of the invention provides that a decoration print image is applied to at least one of the two films. For this image to be visible to the viewer from the outside, it must be in the embodiment shown in FIG Fall on the side facing away from the plastic element 308 side of the electroluminescent structure 302 are applied. In the embodiment shown in FIG. 2, on the other hand, it can lie both on the side of the electroluminescent structure 202 facing away from the plastic element 208 and on either side of the protective film 201.

Sind beide Arten des Schutzes - der vor der Hinterspritzung und die Isolierungsfunktion - gleichzeitig gewünscht, so können Schutzfolien auch auf beide Seiten der zu schützenden Folie, jeweils in Verbindung mit einer aktivierbaren Schicht, angebracht und im beschriebenen Verfahren ver- bunden werden. Dann gleicht der Vorgang einer Lamination der zu schützenden Folie ähnlich wie bei Laminiergerät im Bürobereich, wobei gleichzeitig die Hinterspritzung erfolgt und diesen Prozess erst in Gang setzt.If both types of protection-the one before the back-injection and the insulation function-are desired at the same time, protective films can also be applied to both sides of the film to be protected, in each case in conjunction with an activatable layer, and joined in the described process. Then the process resembles a lamination of the film to be protected similar to laminator in the office area, at the same time the back injection takes place and this process is only in motion.

Wie angedeutet bezieht sich die Erfindung in erster Linie auf die konkrete Problemstellung eines zu hinterspritzenden Elektrolumineszenz-Aufbaus, d.h. einem besonders empfindlichen Folienverbunds. Sie löst jedoch die grundsätzliche Aufgabenstellung des effektiven Schutzes bzw. der Isolierung von Folien im Inmould-Verfahren allgemein. As indicated, the invention primarily relates to the concrete problem of an electroluminescent structure to be back-injected, i. a particularly sensitive film composite. However, it generally solves the fundamental task of effective protection or insulation of films in the in-mold process.

Claims

Ansprüche claims 1. Verfahren zur Hinterspritzung von Folien, dadurch gekennzeichnet, dass mindestens zwei voneinander unabhängige Folien (101 , 201 , 301/ 102, 202, 302) in ein Spritzgusswerkzeug (104) eingebracht und eine akti- vierbare Schicht (103, 203, 303), die mindestens auf einer der beiden Folien vorhanden ist, durch den Spritzgießprozeß so aktiviert wird, dass die Folien miteinander verbunden werden.1. A method for the back-injection of films, characterized in that at least two mutually independent films (101, 201, 301/102, 202, 302) introduced into an injection molding tool (104) and an activatable layer (103, 203, 303) , which is present on at least one of the two films, is activated by the injection molding process so that the films are joined together. 2. Verfahren gemäß Anspruch 1 , dadurch gekennzeichnet, dass die aktivierbare Schicht eine Klebstoff-Schicht ist.2. The method according to claim 1, characterized in that the activatable layer is an adhesive layer. 3. Verfahren gemäß Anspruch 2, dadurch gekennzeichnet, dass der Klebstoff ein Heißklebstoff ist.3. The method according to claim 2, characterized in that the adhesive is a hot melt adhesive. 4. Verfahren gemäß Anspruch 2, dadurch gekennzeichnet, dass der Klebstoff ein Mehrkomponentenklebstoff ist.4. The method according to claim 2, characterized in that the adhesive is a multi-component adhesive. 5. Verfahren gemäß Anspruch 2, dadurch gekennzeichnet, dass der Kleb- Stoff ein latent reaktiver Klebstoff ist.5. The method according to claim 2, characterized in that the adhesive is a latent reactive adhesive. 6. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass eine der beiden Folien (102, 202, 302) ein Elektrolumi- neszenz-Aufbau ist.6. The method according to any one of the preceding claims, characterized in that one of the two films (102, 202, 302) is an electroluminescent structure. 7. Verfahren gemäß Anspruch 6, dadurch gekennzeichnet, dass der Elek- trolumineszenz-Aufbau (102, 202, 302) hinterspritzt und die Schutzfolie7. The method according to claim 6, characterized in that the electroluminescence structure (102, 202, 302) behind injected and the protective film (101, 201, 301) mit dem Elektrolumineszenz-Aufbau auf der der Hinterspritzungs-Seite entgegengesetzten Seite verbunden wird.(101, 201, 301) is connected to the electroluminescent structure on the opposite side of the injection side. 8. Verfahren gemäß Anspruch 6, dadurch gekennzeichnet, dass die Schutzfolie (101 , 201 , 301) hinterspritzt und der Elektrolumineszenz- Aufbau (102, 202, 302)mit der anderen Folie auf der der Hinterspritzungs- Seite entgegengesetzten Seite verbunden wird.8. The method according to claim 6, characterized in that the protective film (101, 201, 301) behind-injected and the electroluminescent structure (102, 202, 302) with the other film on the back injection Side opposite side is connected. 9. Verfahren gemäß einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die beiden Folien in ihren Abmessungen nicht gleich groß sind.9. The method according to any one of the preceding claims, characterized in that the two films are not the same size in their dimensions. 10. Verfahren gemäß einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass mindestens eine der beiden Folien mittels Vakuum im Spritzgusswerkzeug (104) fixiert wird.10. The method according to any one of the preceding claims, characterized in that at least one of the two films is fixed by means of vacuum in the injection molding tool (104). 11. Verfahren gemäß einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass mindestens eine der beiden Folien mittels Elektrostatik im Spritzgusswerkzeug (104) fixiert wird.11. The method according to any one of the preceding claims, characterized in that at least one of the two films is fixed by means of electrostatics in the injection molding tool (104). 12. Verfahren gemäß einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass mindestens eine der Folien vor dem Hinterspritzen plastisch verformt vorliegt.12. The method according to any one of the preceding claims, characterized in that at least one of the films is plastically deformed before the back molding. 13. Verfahren gemäß einem der vorhergehenden Ansprüche, dadurch ge- kennzeichnet, dass mindestens drei voneinander unabhängige Folien verwendet werden.13. The method according to any one of the preceding claims, character- ized in that at least three independent films are used. 14. Dreidimensionales folien-verziertes Kunststoff-Element (207, 307), dadurch gekennzeichnet, dass es aus mindestens zwei an seiner Oberfläche angebrachten Folien (201 , 301/ 202, 302) besteht, von denen die eine mit- tels einer aktivierbaren Schicht (203, 303) mit der anderen und die andere durch eine Schmelzverbindung mit dem restlichen Kunststoff-Element (208, 308) verbunden ist.14. Three-dimensional film-decorated plastic element (207, 307), characterized in that it consists of at least two attached to its surface films (201, 301/202, 302), of which one by means of an activatable layer ( 203, 303) with the other and the other by a fusion connection with the remaining plastic element (208, 308) is connected. 15. Kunststoff-Element nach Anspruch 14, dadurch gekennzeichnet, dass die aktivierbare Schicht (203, 303) eine Heißklebstoff-Schicht ist.15. Plastic element according to claim 14, characterized in that the activatable layer (203, 303) is a hot-melt adhesive layer. 16. Kunststoff-Element nach einem der Ansprüche 14 oder 15, dadurch gekennzeichnet, dass eine der beiden Folien ein Elektrolumineszenz- Aufbau (102, 202, 302) ist.16. Plastic element according to one of claims 14 or 15, characterized in that one of the two films is an electroluminescent Construction (102, 202, 302). 17. Kunststoff-Element gemäß Anspruch 16, dadurch gekennzeichnet, dass der Elektrolumineszenz-Aufbau (102, 202, 302)hinterspritzt und die andere Folie (201 , 301) mit dem Elektrolumineszenz-Aufbau auf der der Hinterspritzungs-Seite entgegengesetzten Seite verbunden ist.17. Plastic element according to claim 16, characterized in that the electroluminescent structure (102, 202, 302) behind-injected and the other film (201, 301) is connected to the electroluminescent structure on the rear injection side opposite side. 18. Kunststoff-Element gemäß Anspruch 17, dadurch gekennzeichnet, dass die andere Folie hinterspritzt und der Elektrolumineszenz-Aufbau (102, 202, 302) mit der anderen Folie (201 , 301) auf der der Hinterspritzungs-Seite entgegengesetzten Seite verbunden ist.18. Plastic element according to claim 17, characterized in that the other film is back-injected and the electroluminescent structure (102, 202, 302) is connected to the other film (201, 301) on the rear injection side opposite side. 19. Kunststoff-Element gemäß einem der Ansprüche 14-18, dadurch gekennzeichnet, dass die beiden Folien in ihren Abmessungen nicht gleich groß sind.19. Plastic element according to one of claims 14-18, characterized in that the two films are not the same size in their dimensions. 20. Kunststoff-Element gemäß einem der Ansprüche 14-19, dadurch gekennzeichnet, dass der Elektrolumineszenz-Aufbau (102, 202, 302) kleiner dimensioniert ist als die zweite Folie (101 , 201 , 301 ).20. Plastic element according to one of claims 14-19, characterized in that the electroluminescent structure (102, 202, 302) is dimensioned smaller than the second film (101, 201, 301). 21. Kunststoff-Element gemäß einem der Ansprüche 14-20, dadurch gekennzeichnet, dass auf mindestens einer der beiden Folien ein Dekora- tions-Druckbild aufgebracht ist. 21 plastic element according to any one of claims 14-20, characterized in that on at least one of the two films, a decorative printed image is applied.
PCT/EP2006/065288 2006-08-14 2006-08-14 Three-dimensional component and method for producing the same Ceased WO2008019707A1 (en)

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Citations (7)

* Cited by examiner, † Cited by third party
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DE19934732A1 (en) * 1998-08-17 2000-03-02 Ford Motor Co Process for laminating a flexible circuit on a substrate
WO2003025890A1 (en) * 2001-09-13 2003-03-27 Nissha Printing Co.,Ltd. El luminous decorative molding and production method therefor, el luminous decorative sheet
EP1304906A2 (en) * 2001-10-22 2003-04-23 Seiko Precision Inc. Manufacturing method
EP1457301A1 (en) * 2003-03-08 2004-09-15 bekuplast Kunststoffverarbeitungs-GmbH Plastic container with integrated transponder
WO2004103678A1 (en) * 2003-05-22 2004-12-02 Weidmann Plastics Technology Ag Method for producing a preform by overmoulding a flat decorative material with an integrated decorative material
DE102004027079A1 (en) * 2004-06-02 2005-12-29 W.E.T. Automotive Systems Ag Electrically heatable molded foam element, in particular seat element of a vehicle interior and method for its production
EP1676688A1 (en) * 2004-12-30 2006-07-05 Kasai Kogyo Co., Ltd. Automotive interior component and manufacturing method thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19934732A1 (en) * 1998-08-17 2000-03-02 Ford Motor Co Process for laminating a flexible circuit on a substrate
WO2003025890A1 (en) * 2001-09-13 2003-03-27 Nissha Printing Co.,Ltd. El luminous decorative molding and production method therefor, el luminous decorative sheet
EP1304906A2 (en) * 2001-10-22 2003-04-23 Seiko Precision Inc. Manufacturing method
EP1457301A1 (en) * 2003-03-08 2004-09-15 bekuplast Kunststoffverarbeitungs-GmbH Plastic container with integrated transponder
WO2004103678A1 (en) * 2003-05-22 2004-12-02 Weidmann Plastics Technology Ag Method for producing a preform by overmoulding a flat decorative material with an integrated decorative material
DE102004027079A1 (en) * 2004-06-02 2005-12-29 W.E.T. Automotive Systems Ag Electrically heatable molded foam element, in particular seat element of a vehicle interior and method for its production
EP1676688A1 (en) * 2004-12-30 2006-07-05 Kasai Kogyo Co., Ltd. Automotive interior component and manufacturing method thereof

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