US20100021705A1 - Laminated Decorative Strip and Method for the Producion of a Laminated Decorative Strip - Google Patents
Laminated Decorative Strip and Method for the Producion of a Laminated Decorative Strip Download PDFInfo
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- US20100021705A1 US20100021705A1 US12/535,884 US53588409A US2010021705A1 US 20100021705 A1 US20100021705 A1 US 20100021705A1 US 53588409 A US53588409 A US 53588409A US 2010021705 A1 US2010021705 A1 US 2010021705A1
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- Prior art keywords
- strip
- layer
- accordance
- relief
- upper layer
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
- B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
- B44C1/10—Applying flat materials, e.g. leaflets, pieces of fabrics
- B44C1/14—Metallic leaves or foils, e.g. gold leaf
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
- B32B17/10018—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising only one glass sheet
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
- B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/28—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer comprising a deformed thin sheet, i.e. the layer having its entire thickness deformed out of the plane, e.g. corrugated, crumpled
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/06—Embossing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
- B44B5/00—Machines or apparatus for embossing decorations or marks, e.g. embossing coins
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/02—Internal Trim mouldings ; Internal Ledges; Wall liners for passenger compartments; Roof liners
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/04—External Ornamental or guard strips; Ornamental inscriptive devices thereon
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
- G09F3/02—Forms or constructions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/08—Reinforcements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/412—Transparent
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2311/00—Metals, their alloys or their compounds
- B32B2311/24—Aluminium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2451/00—Decorative or ornamental articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/15—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
- B32B37/153—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state at least one layer is extruded and immediately laminated while in semi-molten state
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
- Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
- Y10T156/1007—Running or continuous length work
- Y10T156/1023—Surface deformation only [e.g., embossing]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/30—Foil or other thin sheet-metal making or treating
- Y10T29/301—Method
- Y10T29/302—Clad or other composite foil or thin metal making
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
- Y10T428/24612—Composite web or sheet
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
- Y10T428/24917—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including metal layer
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Laminated Bodies (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Finishing Walls (AREA)
Abstract
The invention relates to a laminated strip, in particular a decorative strip, comprising an upper layer (12) consisting of metal, preferably aluminium, whose upper face (22) is embossed with a structure in relief (18) and whose underside (24) is fixed to a reinforcement layer (14) consisting of plastic. During the production of the strip, the reinforcement layer (14) and the protective layer (16) are applied after the structure in relief (18) has been embossed on the upper layer (12).
Description
- This application is a divisional of U.S. Ser. No. 10/541,676 filed Jul. 8, 2005, which is a 35 USC § 371 National Phase Entry Application from PCT/EP2004/000169, filed Jan. 13, 2004, which claims the benefit of German Patent Application Nos. 10300919.1 and 20300435.3 filed on Jan. 13, 2003, the disclosure of which is incorporated herein in its entirety by reference.
- The present invention relates to a laminated strip, in particular a decorative strip, comprising an upper layer consisting of metal whose upper face is embossed with a structure in relief, as well as a production method for the aforementioned type of decorative strip.
- These decorative strips are used in automotive production, for example, where they can be attached to sills as the upper cover. Aluminum is frequently used for the decorative area to lend the decorative strip an appealing appearance. A structure in relief is developed in the aluminum surface, such as a name or a manufacturer's trademark, for example. In addition to automotive construction, these decorative strips are also used as brand signs and/or labels for technical equipment of all types. What comes to mind here are domestic appliances (refrigerators, freezers, dishwashers, etc.), sanitary equipment (shower handle and/or shower stall, etc.).
- If these decorative strips are made completely of aluminum, a specific minimum thickness of the aluminum sheet of approx. 1.5 mm is required to obtain a sufficiently sturdy decorative strip that retains an embossed structure permanently in an appealing fashion. Because the embossing depth of the structure in relief is generally no more than 0.2 mm, a relatively high quantity of aluminum is required compared to the “visible” surface area. This relatively high and principally superfluous aluminum portion represents on the one hand a significant cost factor for these decorative strips and furthermore also drastically increases the weight of these decorative strips. When taking into consideration that these decorative strips, although they are mass items, should provide a high-quality appearance but contribute only insignificantly to the production costs, the value of reducing material costs becomes readily apparent. But replacing the non-visible portion of the aluminum with other materials that are lighter and/or less expensive (such as plastic, for example) presents the problem that a simple embossing of sharp-drawn structures in relief is no longer successful because of the varying bonding ability between the individual components of these of composite work pieces. For this reason, it is not possible to obtain optically appealing results in the embossing process.
- Another option in the surface treatment of a work piece such as a decorative strip is to etch the desired structure into the metal surface. However, with this method, the fact that etching requires a relatively high production effort because at least one additional work step is required to coat the surface area with a masking layer is a disadvantage. Another disadvantage is that the aluminum surface would be completely bare and not protected against corrosion after the etching process. Therefore, it is absolutely crucial that a corrosion protection is applied after the etching process by anodizing or varnishing, which again results in significant additional costs. Also, varnishing would flood the matting introduced earlier by the relief etching. The result would detract from a high-quality appearance.
- The problem to be solved by the present invention is therefore to provide a decorative strip of the aforementioned type where an appealing surface structure in relief can be developed with a reduced mass of metal, as well as a production method for a decorative strip of the aforementioned type.
- To solve the aforementioned problem, the present invention provides a laminated strip, in particular a decorative strip that comprises an upper layer consisting of metal, preferably of aluminum. A structure in relief is embossed into the upper face of the upper layer and the underside is firmly fixed to a reinforcement layer consisting of plastic. It is especially advantageous if the reinforcement layer is fixed to the upper layer after said upper layer has already been formed with the structure in relief. Because the structure in relief is embossed here in the upper layer consisting of metal. as long as said upper layer is not yet connected to the reinforcement layer consisting of plastic, exact and sharp contours can be obtained in a very simple manner by means of an embossing procedure. An additional advantage is that the upper layer consisting of metal is relatively thin in the strip in accordance with the invention. During the embossing process, the embossing stamp presses the thin strip, for example an aluminum strip which forms the upper layer, against a counterpart of complementary shape, thus also allowing the reproduction of more complex structures in relief—the reinforcement layer consisting of plastic, on the other hand, would impair the relief formation during the embossing, in particular in the area of sharp edges. Also, it would have to be expected that the cohesion between the reinforcement layer and the upper layer may suffer after embossing, at least in some places.
- The application of the reinforcement layer consisting of plastic to the upper layer consisting of metal, which has already been treated in this way, may be effected such that the upper face, which carries the structure in relief, is not altered. In this way, it is possible to produce a light and cost-effective metal strip because the quantity of metal required for the production of a metal strip is reduced to a fraction compared to a conventional metal strip. If aluminum is used, it can also be guaranteed that a coating of the upper face (visible face), which protects against corrosion, remains intact in the production of the strip.
- An extrusion method would be appropriate for attaching the reinforcement layer to the upper layer, with the reinforcement layer being available in plasticized form in an extruder and being attached to the upper layer with extrusion coating. Extrusion methods are particularly suitable for the production of mass items because this type of production can achieve a high through-put of produced items.
- Only a slight thickness of the upper layer is required to develop a clean surface area with sharply embossed structures in relief, and therefore it is favorable if the thickness of the upper layer is less than 1 mm, preferably less than 0.4 mm. The depth of the structure in relief should not be greater than 0.5 mm, preferably not greater than 0.2 mm.
- The thickness of the reinforcement layer should be appropriate to obtain a strip that is sufficiently dimensionally stable as well as sufficiently resistant. It is desirable, however, for the strip to retain some flexibility, and thus the thickness of the reinforcement layer should be favorably ≦1 mm, preferably ≦0.6 mm.
- The stability of the strip can be improved even further if the reinforcement layer contains fibers, preferably mineral fibers. These fibers can help to adjust the thermal longitudinal expansions of the metallic upper layer and the reinforcement layer consisting of plastic.
- The reinforcement layer advantageously consists of polyvinylchloride (PVC), acrylnitrilbutadienstyrol (ABS), polyamide (PA) or polypropylene (PP). Each of these synthetic materials is relatively easy to handle in the extrusion process and has sufficient strength at an appropriate thickness (in the range of 1 mm or less). This applies in particular if a fiber-type material is mixed into the respective synthetic material.
- To protect the structure in relief in the upper face of the upper layer, it may be provided to arrange another, transparent plastic layer on the upper face of the upper layer. This additional plastic layer preferably consists of polyvinylchloride (PVC), acrylnitrilbutadienstyrol (ABS), polyamide (PA) or polypropylene (PP). Advantageously, it has a thickness of ≦0.5 mm, preferably of ≦0.2 mm. The additional plastic layer may also be extrusion-coated on the upper face of the upper layer. It is especially favorable to simultaneously extrusion-coat the reinforcement layer on the underside of the upper layer and the additional plastic layer on the upper face of the upper layer in a single extrusion machine, thus making an additional production step obsolete.
- To improve the bond between the upper layer consisting of metal and the reinforcement layer consisting of plastic, it may be provided that an adhesive varnish is applied to the underside of the upper layer. Additionally, it may be provided that a protective varnish is applied to the upper face of the upper layer, which, for example, protects the visible surface of the upper layer against external influences (in particular UV radiation and the use of road salt). Furthermore, said protective varnish can be used as a design element by adding minerals or colors.
- Attaching the laminated strip to its final substrate may be achieved with gluing (such as a double-sided glue strip) or by clip attachment or welding to the final substrate.
- It is also conceivable to reinforce the strip into a load-bearing element for another application, for example in construction.
- To produce the laminated decorative strip in accordance with the invention, a method comprising the following steps is proposed:
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- a) Embossing a structure in relief into the upper face of the upper layer, and
- b) then attaching a reinforcement layer consisting of plastic to the upper layer.
- It has already been explained that particularly by embossing the structure in relief into the upper layer consisting of metal as long as said metal layer is not yet attached to the reinforcement layer consisting of plastic, the development of exact and sharp contours is possible in a very simple manner with an embossing process, even more so because the upper layer consisting of metal is supposed to be as thin as possible. For an optimally adhesive attachment of the reinforcement layer consisting of plastic at the treated upper layer, suitable methods are those where the structure in relief in the upper face of the upper layer is not undergoing any more changes. In particular suitable for this purpose are extrusion processes, with the reinforcement layer consisting of plastic being attached by extrusion-coating in step b).
- Because the extrusion process is principally a continuous production process where a specified quantity of a final product is generated from a specific quantity of starter materials to be added at each specified time unit, it is not readily possible to combine said extrusion process with an embossing process, which—at least if the embossing image is supposed to meet high quality standards—a discontinuous production method. In the present case, this presents the problem that during the embossing of the structure in relief on the metal upper layer, the movement of the metal upper layer is subjected to a constant change of stopping and pressing the embossing stamp and continuing the feed, whereas it has to be moved through the extruder at a constant transport speed. To coordinate these different movement types of the upper layer in the production process, it therefore may be provided that the reinforcement layer is attached to the upper layer immediately after the structure in relief is embossed, with the upper layer passing through at least one buffer arrangement where it can collect from time to time after the embossing and prior to attaching the reinforcement layer. This can be realized, for example, in that the upper layer forms a loop-like arrangement between the embossing unit and the extruder (such as simply slacking to a certain degree), which alternately gets bigger and smaller periodically.
- If another plastic layer is arranged as protective layer at the upper face of the upper layer, it is furthermore advantageous to attach said additional plastic layer to the upper layer also by extrusion-coating in step b). A dual extruder may be provided for this purpose, which has two oppositely arranged extrusion heads between which the upper layer is transported. In this way, the reinforcement layer as well as the protective layer can be coated in a single operation.
- To protect the upper layer and the structure in relief embossed therein from external influences, such as UV radiation and corrosion, a protective varnish may be applied to the surface of the upper layer. The method in accordance with the invention offers the option to apply said protective varnish on the upper layer already prior to embossing the structure in relief because the embossing process will not damage the protective varnish layer. Strips already treated with a protective varnish, such as aluminum strips available commercially from strip manufacturers at low cost, may be used.
- In the same way, an adhesive varnish can be applied to the underside of the upper layer—if desired, already prior to embossing—which is supposed to effect a particularly strong adhesion of the reinforcement layer to the upper layer. These strips, as well as strips having a protective varnish on one side and an adhesive varnish on the other side, are also commercially available at a low cost.
- An embodiment of the invention is described in detail in the following by means of the included illustrations. They show:
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FIG. 1 a longitudinal section through a laminated strip in accordance with the invention; and -
FIG. 2 an extremely simplified schematic representation of an arrangement for the production of the strip in accordance with the invention in cross-sectional view. -
FIG. 1 shows a section through alaminated strip 10 in accordance with the invention in longitudinal view. Thestrip 10 in accordance with the invention is comprised of three layers, i.e., ametal layer 12 consisting of aluminum arranged in the center, areinforcement layer 14 consisting of plastic arranged under said metal layer, as well as anotherprotective layer 16 arranged on top inFIG. 1 . All three layers are fixed to one another adhesively, with the connection between thealuminum layer 12 and thereinforcement layer 14 being strong enough that the twolayers protective layer 16, on the other hand, is only loosely attached to thealuminum layer 12 and can be pulled off easily from thealuminum layer 12 by hand. The function of theprotective layer 16, which preferably also consists of plastic, is primarily to protect thealuminum layer 12 from mechanical damage during the production process. A secondary function of theprotective layer 16 is the protection until thestrip 10 is finally affixed to an intended product. - The
surface area 20 of thealuminum layer 12 furthermore has a structure inrelief 18 created by embossing a specific text or graphic symbol into thethin aluminum sheet 12 before said aluminum sheet was attached to the twoplastic layers relief 18, the twoplastic layers aluminum layer 12, for example by extrusion, such that they attach to said aluminum layer over the entire upper or lower area of thealuminum layer 12. As desired, theupper face 22 of the protective layer and/or theunderside 24 of thereinforcement layer 14 may be smooth or also have the contours of the structure in relief—perhaps also in a weakened form. - The overall thickness a of the
laminated strip 10 shown inFIG. 1 is 1.2 mm, with the upperprotective layer 16 consisting of plastic having a thickness of 0.2 mm, thealuminum layer 12 having a thickness of 0.4 mm and thelower reinforcement layer 14 consisting of plastic having a thickness of 0.6 mm. Theupper plastic layer 16 is transparent and made of polyvinylchloride. It has a relatively low stiffness and thus forms a protective film for thealuminum layer 12. Thelower reinforcement layer 14 is made of polypropylene and contains mineral fibers that prevent an expansion and/or deformation of thelower reinforcement layer 14, in particular in longitudinal direction of thestrip 10. The stiffness of thelower reinforcement layer 14 is clearly higher than that of the upperprotective layer 16, so that thelower reinforcement layer 14 provides overall stability to thestrip 10 as well as the embossed structure in relief of thealuminum layer 12. Nevertheless, thestrip 10 remains flexible enough that its upper surface can adapt to curved substrates. -
FIG. 2 shows, in cross-sectional view and extremely simplified form, a device by means of which thestrip 10 in accordance with the invention can be produced. The production device essentially comprises an embossing unit 30 to which thethin aluminum strip 12′, which forms thealuminum layer 12, is fed for embossing the structure inrelief 18, as well as anextrusion unit 40, in which thereinforcement layer 14 and/or theprotective layer 16 is extrusion-coated on thealuminum strip 12′ with the embossed structure inrelief 18 from the top or the bottom respectively. Furthermore, the production arrangement shown inFIG. 2 comprises abuffer arrangement 50 between the embossing unit 30 and theextrusion unit 40, where thealuminum strip 12′ forms adownward hanging loop 52. - In the embossing unit 30, the structure in
relief 18 is embossed on thealuminum strip 12′ by pressing anupper stamp 32 on an associated, complementary formedlower stamp 34. To that end, thealuminum strip 12′, which has not yet been embossed, is introduced into the embossing unit 30 in a first step and then stopped, theupper stamp 32 is pressed down against thelower stamp 34 and released, and then the movement of thealuminum strip 12′ continues to the left inFIG. 2 , with the relief that was just embossed being transported simultaneously out of the stamp area and the next area of thealuminum strip 12′ to be embossed being inserted into the stamp matrices between theupper stamp 32 and thelower stamp 34. Because thealuminum strip 12′ has a relatively small thickness, it is not problematic to generate an embossing structure with sharply defined edges. - In the
extrusion unit 40, plastic layers are then extrusion-coated on therespective underside 24 andupper face 22 of thealuminum strip 12′, which bears the intended structure inrelief 18. For this purpose, theextrusion unit 40 comprises afirst extrusion head 42 as well as asecond extrusion head 44, which are arranged opposite to one another and between which thealuminum strip 12′ is transported in such a way that itsunderside 24 faces thelower extrusion head 44 and itsupper face 22 faces theupper extrusion head 42. Thelower extrusion head 44 contains plasticized polypropylene with added mineral fibers to form thereinforcement layer 14. Theupper extrusion head 42 contains plasticized polyvinylchloride to form theprotective layer 16 on theupper face 22 of thealuminum strip 12′. Both layers 14, 16 are extrusion-coated with the known methods. - In the
extrusion unit 40, thealuminum strip 12′ is processed into the finallaminated strip 10 in a continuous manner, i.e., inFIG. 2 , thealuminum strip 12′ moves through theextrusion unit 40 toward the left at a constant speed. Thus, it is up to thebuffer arrangement 50 to coordinate the two different types of movement of thealuminum strip 12′ in the embossing unit 30 (discontinuous movement) and in the extrusion unit 40 (movement at constant speed) in that thealuminum strip 12′ can form a more or less hangingloop 52 in the area of thebuffer arrangement 50. - To attach the
reinforcement layer 14 permanently to the underside of thealuminum strip 12′, an adhesive varnish has been applied to the underside of thealuminum strip 12′. A protective varnish is applied to the upper face of thealuminum strip 12′ to protect the upper face of thealuminum strip 12′ and its embossed structure inrelief 18 from damage caused by external influences (in particular UV radiation and corrosion). The two aforementioned varnishes are applied to the metal strip prior to the embossing process. Varnished metal strips of this type are available from metal strip manufacturers. - The laminated strip, which was produced as described above and has at least two layers, is characterized by low material- and production costs and a high dimensional stability, as well as by a particularly appealing look because it can be provided with a complex embossing relief.
Claims (18)
1. Laminated strip, comprising an upper layer (12) consisting of a thin metal strip, whose upper face (22), constituting an outer face of said laminated strip, has a structure in the form of a three dimensional relief (18) and whose underside (24) is provided with a reinforcement layer (14), wherein:
the reinforcement layer (14) is made of plastic and the reinforcement layer is extrusion-coated on the upper layer (12), which already carries an embossed structure in relief (18).
2. Strip in accordance with claim 1 , wherein the structure in relief has sharp edges.
3. Strip in accordance with claim 1 , wherein the upper layer (12) has a thickness of ≦1 mm.
4. Strip in accordance with claim 1 , wherein the structure in relief (18) has a depth of ≦0.5 mm.
5. Strip in accordance with claim 1 , wherein the reinforcement layer (14) has a thickness of ≦1 mm.
6. Strip in accordance with claim 1 , wherein the reinforcement layer (14) contains fibers, for reinforcement.
7. Strip in accordance with claim 1 , wherein the reinforcement layer (14) comprises polyvinylchloride (PVC), acryinitrilbutadienstyrol (ABS), polyamide (PA) or polypropylene (PP).
8. Strip in accordance with claim 1 , wherein an additional, transparent plastic layer (16) is arranged on the upper face of the upper layer (12), which additional layer (16) is loosely bonded to the upper layer (12) in such a way as to be detachable by hand.
9. Strip in accordance with claim 8 , wherein the additional plastic layer (16) has a thickness of ≦0.5 mm.
10. Strip in accordance with claim 1 , wherein a protective varnish is applied to the upper face (22) of the upper layer (12) and/or an adhesive varnish is applied to the underside (24) of the upper layer (12).
11. A laminated strip according to claim 1 wherein the laminated strip is a decorative strip.
12. A laminated strip according to claim 1 wherein the metal is aluminum.
13. A strip in accordance with claim 1 , wherein the upper layer (12) has a thickness of ≦0.4 mm.
14. A strip in accordance with claim 1 , wherein the structure in relief (18) has a depth of ≦0.2 mm.
15. A strip in accordance with claim 1 , wherein the reinforcement layer (14) has a thickness of ≦0.6 mm.
16. A strip in accordance with claim 1 , wherein the reinforcement layer (14) contains mineral fibers for reinforcement.
17. A strip in accordance with claim 1 , wherein an additional, transparent plastic layer (16) is arranged on the upper face of the upper layer (12), wherein the transparent layer comprises polyvinylchloride (PVC), acrylnitrilbutadienstyrol (ABS), polyamide (PA) or polypropylene (PP).
18. A strip in accordance with claim 8 , wherein the additional plastic layer (16) has a thickness of ≦0.2 mm.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/535,884 US20100021705A1 (en) | 2003-01-13 | 2009-08-05 | Laminated Decorative Strip and Method for the Producion of a Laminated Decorative Strip |
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10300919A DE10300919A1 (en) | 2003-01-13 | 2003-01-13 | Multi-layer decorative strip comprises a metal upper layer with embossed relief pattern and a plastic layer on the underside |
DE20300435.3 | 2003-01-13 | ||
DE10300919.1 | 2003-01-13 | ||
DE20300435U DE20300435U1 (en) | 2003-01-13 | 2003-01-13 | Multilayered strip, in particular, decorative strip comprises a top layer of metal, preferably aluminum, which is provided with a relief structure and is joined to a plastic reinforcement layer |
PCT/EP2004/000169 WO2004062831A2 (en) | 2003-01-13 | 2004-01-13 | Laminated decorative strip comprising a structure in relief and an aluminium layer and method for producing said strip |
US54167605A | 2005-07-08 | 2005-07-08 | |
US12/535,884 US20100021705A1 (en) | 2003-01-13 | 2009-08-05 | Laminated Decorative Strip and Method for the Producion of a Laminated Decorative Strip |
Related Parent Applications (2)
Application Number | Title | Priority Date | Filing Date |
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PCT/EP2004/000169 Division WO2004062831A2 (en) | 2003-01-13 | 2004-01-13 | Laminated decorative strip comprising a structure in relief and an aluminium layer and method for producing said strip |
US54167605A Division | 2003-01-13 | 2005-07-08 |
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Publication Number | Publication Date |
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US20100021705A1 true US20100021705A1 (en) | 2010-01-28 |
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Application Number | Title | Priority Date | Filing Date |
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US10/541,676 Expired - Fee Related US8968826B2 (en) | 2003-01-13 | 2004-01-13 | Laminated decorative strip and method for producing a laminated decorative strip |
US12/535,884 Abandoned US20100021705A1 (en) | 2003-01-13 | 2009-08-05 | Laminated Decorative Strip and Method for the Producion of a Laminated Decorative Strip |
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US10/541,676 Expired - Fee Related US8968826B2 (en) | 2003-01-13 | 2004-01-13 | Laminated decorative strip and method for producing a laminated decorative strip |
Country Status (8)
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US (2) | US8968826B2 (en) |
EP (2) | EP1587694B2 (en) |
JP (1) | JP4723471B2 (en) |
KR (1) | KR101182627B1 (en) |
AT (2) | ATE394246T1 (en) |
DE (5) | DE20300435U1 (en) |
ES (2) | ES2338472T3 (en) |
WO (1) | WO2004062831A2 (en) |
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NL2017509B1 (en) * | 2016-09-22 | 2018-03-29 | Daan Zuijderduijn B V | System for assembling a three dimensional object |
CN110722845A (en) * | 2019-10-23 | 2020-01-24 | 苏州欧邦塑胶有限公司 | Alloy stainless steel film and production method thereof |
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DE20300435U1 (en) | 2003-01-13 | 2004-06-03 | Kunststoff-Technik Scherer & Trier Gmbh & Co Kg | Multilayered strip, in particular, decorative strip comprises a top layer of metal, preferably aluminum, which is provided with a relief structure and is joined to a plastic reinforcement layer |
KR100814104B1 (en) * | 2006-10-20 | 2008-03-14 | 이상춘 | A method for manufacturing a structural frame with plastics layers containing aluminum extruding stuff as a core frame and a structural frame thereby |
CA2596204C (en) * | 2007-08-07 | 2019-02-26 | Historx, Inc. | Method and system for determining an optimal dilution of a reagent |
CN101945556A (en) * | 2009-07-06 | 2011-01-12 | 康准电子科技(昆山)有限公司 | Metal shell and manufacturing method thereof |
KR20120110634A (en) * | 2011-03-30 | 2012-10-10 | (주)엘지하우시스 | Synthetic wood having elastic layer |
ES2492520T3 (en) * | 2011-09-22 | 2014-09-09 | Constantia Teich Gmbh | Procedure for manufacturing an aluminum foil with integrated safety features |
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CN110722845A (en) * | 2019-10-23 | 2020-01-24 | 苏州欧邦塑胶有限公司 | Alloy stainless steel film and production method thereof |
Also Published As
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DE202004021384U1 (en) | 2007-12-13 |
US20060127646A1 (en) | 2006-06-15 |
ES2301963T5 (en) | 2016-10-27 |
EP1587694A2 (en) | 2005-10-26 |
ATE459487T1 (en) | 2010-03-15 |
EP1587694B2 (en) | 2016-08-17 |
KR101182627B1 (en) | 2012-09-17 |
EP1880869B1 (en) | 2010-03-03 |
JP2006517870A (en) | 2006-08-03 |
EP1880869A1 (en) | 2008-01-23 |
WO2004062831A2 (en) | 2004-07-29 |
US8968826B2 (en) | 2015-03-03 |
DE502004010866D1 (en) | 2010-04-15 |
JP4723471B2 (en) | 2011-07-13 |
ES2338472T3 (en) | 2010-05-07 |
DE10300919A1 (en) | 2004-07-22 |
DE502004007050D1 (en) | 2008-06-19 |
ATE394246T1 (en) | 2008-05-15 |
DE20300435U1 (en) | 2004-06-03 |
KR20050103470A (en) | 2005-10-31 |
ES2301963T3 (en) | 2008-07-01 |
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EP1880869B2 (en) | 2018-06-13 |
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