EP2572063B1 - Floor panel with a wear layer comprising cork - Google Patents

Floor panel with a wear layer comprising cork Download PDF

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Publication number
EP2572063B1
EP2572063B1 EP11720747.2A EP11720747A EP2572063B1 EP 2572063 B1 EP2572063 B1 EP 2572063B1 EP 11720747 A EP11720747 A EP 11720747A EP 2572063 B1 EP2572063 B1 EP 2572063B1
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EP
European Patent Office
Prior art keywords
layer
cork
thickness
density
wear
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EP11720747.2A
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German (de)
French (fr)
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EP2572063A2 (en
Inventor
Ansgar Wolf
Andre Wiegelmann
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Fritz Egger GmbH and Co OG
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Fritz Egger GmbH and Co OG
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Priority to PL11720747T priority Critical patent/PL2572063T3/en
Priority to RS20190415A priority patent/RS58544B1/en
Publication of EP2572063A2 publication Critical patent/EP2572063A2/en
Application granted granted Critical
Publication of EP2572063B1 publication Critical patent/EP2572063B1/en
Priority to HRP20190411TT priority patent/HRP20190411T1/en
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/18—Separately-laid insulating layers; Other additional insulating measures; Floating floors
    • E04F15/20—Separately-laid insulating layers; Other additional insulating measures; Floating floors for sound insulation
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/02—Flooring or floor layers composed of a number of similar elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/18—Separately-laid insulating layers; Other additional insulating measures; Floating floors
    • E04F15/181—Insulating layers integrally formed with the flooring or the flooring elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2290/00—Specially adapted covering, lining or flooring elements not otherwise provided for
    • E04F2290/04—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire
    • E04F2290/041—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire against noise
    • E04F2290/042—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire against noise with a facing or top layer for sound insulation
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2290/00—Specially adapted covering, lining or flooring elements not otherwise provided for
    • E04F2290/04—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire
    • E04F2290/041—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire against noise
    • E04F2290/043—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire against noise with a bottom layer for sound insulation

Definitions

  • the invention relates to a floor panel according to the preamble of claim 1.
  • Cork floors have long been known in practice. Cork floors feel warm and comfortable due to their low thermal conductivity. In addition, cork is on the one hand relatively resistant to wear and on the other hand soft and elastic. Due to their high elasticity, cork floors are also highly impact-sound-absorbing. Cork floors are composed of individual cork slabs which are glued to the substrate. In order to obtain floor coverings that are easier to install and disassemble without sacrificing the advantageous properties of a cork floor, floor panels with a cork layer have been developed. In these floor panels, the cork layer is applied to a support plate made of a wood material, which is provided for tension compensation of the panel at its bottom with a so-called Gegenzug Mrs.
  • the carrier plates are provided with known locking systems, the one allow glue-free connection of the floor panels to a floating floor covering.
  • the EP 1 990 186 A2 discloses a digitally printed cork floor panel, wherein a floor panel consists of a footfall sound absorbing layer, an HDF support panel, and a cork base disposed on the support panel.
  • the thickness of the cork cover is 2 - 5 mm, the density is in the range between 400 and 600 kg / m 3 .
  • this is now first annealed in a complex process. Subsequently, the surface is ground and it is applied a barrier base on which finally the ink can be applied.
  • the publication WO 2009/065769 A2 discloses a floor panel comprising a backsheet, a core layer and a surface layer.
  • the surface layer has both particles that increase the resistance of this layer to wear and cork particles.
  • the DE 20 2007 007 768 U1 relates to a cork floor element which is formed from an insulating layer, a base support layer and a cork plate arranged on the carrier layer.
  • the density of the cork plate is 450 - 550 kg / m3, the layer thickness 3 mm.
  • the publication EP 1 634 696 A1 discloses a flooring element of multiple layers, comprising a cork underlayer, a backing plate, a cork layer disposed on the backing plate, and an additional top wear layer.
  • the thickness of the cork layers is 1 - 3 mm.
  • the DE 102 01 087 A1 relates to a floor covering consisting of an upper layer of cork, a middle layer and a lower insulating layer.
  • the thickness of the cork layer is 1 - 5 mm.
  • the layer structure of the bottom plates from the WO 2009/064211 has a cork veneer as the top wear layer. Under this cork veneer layer, a layer of press cork may be arranged. Under the support plate a press cork layer is provided as an insulating layer. As a protective layer of the cork veneer layer, the application of a PVC layer is described.
  • the invention is based on the technical problem of making the floor panel thinner while saving material and at the same time maintaining the advantageous properties of known floor panels.
  • This technical problem is solved in a floor panel with the features of the preamble of claim 1, characterized in that the cork layer of the wear layer has a thickness of less than 2 mm, and that the cork layer of the backing layer has a thickness of 0.5 mm to 1.0 mm and having a density of at least 550 kg / m 3 .
  • the invention has recognized that the layer thickness of the cork layer of the floor panel can be limited to less than 2 mm, if at the same time the density of the cork layer is increased to a value of at least 550 kg / m 3 .
  • the densities of previous cork layers are sometimes well below 500 kg / m 3 .
  • cork of high density is less elastic, heat insulating and impact sound absorbing.
  • the effect obtained according to the invention is presumably based on the fact that, in the case of layer thicknesses of the cork layer of less than 2 mm, the properties of the floor panel are determined to a not inconsiderable degree by the properties of the support plate of the floor panel.
  • the cork layer has a thickness of less than 1.5 mm, in particular a thickness between 1 mm and 1.5 mm. In this way not only material is saved but also the thickness of the floor panel as a whole is reduced.
  • the cork layer may have a density of at least 650 kg / m 3 . In this way, preferred properties typical of cork materials are obtained, even if the layer thickness of the cork layer is chosen to be very small.
  • the counteracting layer has a cork layer.
  • the impact sound insulating properties of the cork can be optimally utilized.
  • Cork layer of the counteracting layer has a thickness of 0.5 mm to 1.0 mm. Even with these low layer thicknesses, both a good footfall sound insulation and a sufficient stress compensation can be achieved.
  • the cork layer of the counteracting layer has a density of at least 550 kg / m 3 , or even at least 650 kg / m 3 .
  • the cork layers of the wear layer and the backsheet layer have similar properties and similar thicknesses. Accordingly, the shrinkage of both cork layers is very similar, so that in both layers similar, mutually substantially neutralizing, stresses arise.
  • the carrier plate is formed of wood or a wood material.
  • Support plates made of a wood material are inexpensive to produce and have favorable mechanical properties.
  • these carrier plates can be easily recycled.
  • MDF medium-density fiberboard
  • HDF high-density fiberboard
  • Lower cost floor panels can be made with Oriented Strand Board (OSB) support plates.
  • WPC plate wood-plastic compound
  • compact laminate formed carrier plates in question.
  • the support plate has a thickness between 2 mm and 9 mm.
  • carrier plates have been found with a thickness between 3.5 mm and 7.5 mm.
  • the coating is formed according to the invention by a lacquer. This may additionally comprise a melamine resin, a film and / or combinations thereof.
  • the cork layer of the wear layer may additionally or alternatively also be provided with at least one resin-impregnated overlay paper and / or a layer having abrasion-resistant particles. From a manufacturing point of view, it makes sense if the cork layer of the wear layer and / or the Gegenzug für is adhered to the support plate.
  • the adhesive is preferably a laminating or laminating adhesive, which may be a solvent-free adhesive. Suitable laminating or laminating adhesives are one- or two-component reaction adhesives and dispersion adhesives. A particularly preferred reaction adhesive includes urea. The adhesive allows the formation of a durable and resistant composite.
  • a floor panel 1 is shown with a support plate 2 in the form of a high-density fiberboard (HDF).
  • a wear layer 3 is applied, which comprises a cork layer 4.
  • the cork layer 4 of the illustrated and insofar preferred floor panel 1 is oiled, but otherwise has no further cover layer.
  • the cork layer 4 is laminated to the carrier plate 2 with an adhesive 5 in the form of a reaction adhesive.
  • the adhesive 5 is cured under pressure and temperature in a press.
  • a cork layer 7 is also provided.
  • the counteracting layer 6 also has no further coating and is laminated to the carrier plate 2 with an adhesive 5 in the form of a reaction adhesive.
  • the cork layer 4 of the wear layer 3 has a thickness between 1 mm and 1.5 mm and a density of 550 kg / m 3 to 600 kg / m 3 .
  • the cork layer 7 of the counteracting layer 6 is about 1 mm thick.
  • the cork material of the counteracting layer 6 has a density of about 200 kg / m 3 .
  • the carrier plate 2 arranged between the cork layers has a thickness of 3.5 mm to 4.5 mm.
  • a floor panel 1 ' with a support plate 2' in the form of a high-density fiberboard (HDF) and a thickness between 5 mm and 6.5 mm shown.
  • a wear layer 3' is applied on the support plate 2 '.
  • the wear layer 3 ' comprises a lower cork layer 4' and an upper cover layer 8.
  • the cover layer comprises a decor which produced by decorative direct printing.
  • the decor can be modeled on a wooden surface, a ceramic surface or a stone surface.
  • the decor can alternatively also correspond to a fantasy decor.
  • a primer may be provided between the cork layer and the decorating layer to improve the optical quality of the direct printing.
  • a protective layer also not shown, which in turn may be constructed in several layers.
  • the protective layer has in particular a UV-resistant lacquer.
  • abrasion-resistant particles and / or a resin-impregnated overlay paper can be provided.
  • the cork layer 4 'of the wear layer is, like the counteracting layer 6', connected to the support plate 2 'by means of an adhesive 5'.
  • the Schmidt Mrs 6 ' consists in the illustrated and so far preferred floor panel 1' of a cork layer 7 '. If necessary, however, further layers, such as a vapor barrier, lacquer layer or the like, may be provided.
  • the cork layer 7 'of the counteracting layer 6' has a thickness of less than 1 mm, approximately 0.7 to 0.9 mm.
  • the density of the cork layer 7 'of the counteracting layer 6' corresponds in the illustrated preferred floor panel 1 'to the density of the cork layer 4' of the wear layer 3 ', namely at least 600 kg / m 3 , in particular at least 650 kg / m 3 .
  • the cork layer 4 'of the wear layer 3' is somewhat thicker than the cork layer 7 'of the counteracting layer 6', namely approximately 1 mm.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Floor Finish (AREA)
  • Laminated Bodies (AREA)

Description

Die Erfindung betrifft ein Fußbodenpaneel gemäß dem Oberbegriff des Anspruchs 1.
Aus der Praxis sind seit langer Zeit Korkfußböden bekannt. Korkfußböden fühlen sich wegen ihrer geringen Wärmeleitfähigkeit warm und behaglich an. Zudem ist Kork einerseits verhältnismäßig widerstandsfähig gegenüber Abnutzung und andererseits weich und elastisch. Durch die hohe Elastizität sind Korkfußböden zudem in hohem Maße trittschalldämmend. Korkfußböden werden aus einzelnen Korkplatten zusammengesetzt, die mit dem Untergrund verklebt werden.
Um leichter zu verlegende und wieder zu demontierende Fußbodenbeläge zu erhalten, ohne auf die vorteilhaften Eigenschaften eines Korkfußbodens zu verzichten, sind Fußbodenpaneele mit einer Korkschicht entwickelt worden. Bei diesen Fußbodenpaneelen ist die Korkschicht auf einer Trägerplatte aus einem Holzwerkstoff aufgebracht, die zum Spannungsausgleich des Paneels an dessen Unterseite mit einer sogenannten Gegenzugschicht versehen ist. Die Trägerplatten sind mit bekannten Verriegelungssystemen versehen, die eine leimfreie Verbindung der Fußbodenpaneele zu einem schwimmenden Fußbodenbelag ermöglichen.The invention relates to a floor panel according to the preamble of claim 1.
Cork floors have long been known in practice. Cork floors feel warm and comfortable due to their low thermal conductivity. In addition, cork is on the one hand relatively resistant to wear and on the other hand soft and elastic. Due to their high elasticity, cork floors are also highly impact-sound-absorbing. Cork floors are composed of individual cork slabs which are glued to the substrate.
In order to obtain floor coverings that are easier to install and disassemble without sacrificing the advantageous properties of a cork floor, floor panels with a cork layer have been developed. In these floor panels, the cork layer is applied to a support plate made of a wood material, which is provided for tension compensation of the panel at its bottom with a so-called Gegenzugschicht. The carrier plates are provided with known locking systems, the one allow glue-free connection of the floor panels to a floating floor covering.

Damit bei diesen Fußbodenpaneelen die vorteilhaften, zuvor näher beschriebenen, Eigenschaften des Korks zum Tragen kommen, muss dafür Sorge getragen werden, dass die Korkschicht nicht zu dünn ausfällt.So that the advantageous, previously described in detail, properties of the cork come to fruition in these floor panels, care must be taken that the cork layer does not fail too thin.

Dies ist jedoch mit dem Nachteil verbunden, dass Fußbodenpaneele mit Korkschichten verhältnismäßig dick sind. Aufgrund der Dicke der Fußbodenpaneele können diese nicht überall verwendet werden. Um diesem Nachteil zu begegnen, ist vorgeschlagen worden, die Dicke der Trägerplatten zu minimieren. Dann müssen die Verbindungsprofile jedoch sehr filigran ausgebildet werden, so dass es bei der Fertigung und dem Verlegen der Fußbodenpaneele zu unerwünschten Beschädigungen an den Fußbodenpaneelen kommen kann. Fußbodenpaneele mit entsprechenden Beschädigungen sind nicht weiter verwendbar und müssen folglich entsorgt werden.However, this has the disadvantage that floor panels with cork layers are relatively thick. Due to the thickness of the floor panels, these can not be used everywhere. To address this disadvantage, it has been proposed to minimize the thickness of the carrier plates. Then, however, the connection profiles must be made very filigree, so that it can come in the manufacture and laying of the floor panels to unwanted damage to the floor panels. Floor panels with corresponding damage are no longer usable and must therefore be disposed of.

Die EP 1 990 186 A2 offenbart eine digital bedruckte Korkbodenplatte, wobei eine Bodenplatte aus einer trittschalldämmenden Schicht, einer HDF -Trägerplatte und einer auf der Trägerplatte angeordneten Korkauflage besteht. Die Dicke der Korkauflage beträgt 2 - 5 mm, deren Dichte liegt im Bereich zwischen 400 und 600 kg/m3. Um den Digitaldruck auf die Korkauflage auftragen zu können, wird diese nun zunächst in einem aufwendigen Verfahren getempert. Anschließend wird die Oberfläche geschliffen und es wird ein Sperrgrund aufgetragen, auf den schließlich die Druckfarbe aufgebracht werden kann.The EP 1 990 186 A2 discloses a digitally printed cork floor panel, wherein a floor panel consists of a footfall sound absorbing layer, an HDF support panel, and a cork base disposed on the support panel. The thickness of the cork cover is 2 - 5 mm, the density is in the range between 400 and 600 kg / m 3 . In order to apply the digital print on the cork, this is now first annealed in a complex process. Subsequently, the surface is ground and it is applied a barrier base on which finally the ink can be applied.

Die Druckschrift WO 2009/065769 A2 offenbart ein Fußbodenpaneel umfassend eine Unterschicht, eine Kernschicht und eine Oberflächenschicht. Die Oberflächenschicht weist sowohl Partikel, die den Widerstand dieser Schicht gegen eine Abnutzung erhöhen, als auch Korkpartikel auf.The publication WO 2009/065769 A2 discloses a floor panel comprising a backsheet, a core layer and a surface layer. The surface layer has both particles that increase the resistance of this layer to wear and cork particles.

Die DE 20 2007 007 768 U1 betrifft ein Korkbodenelement, das aus einer Dämmschicht, einer Basisträgerschicht und einer auf der Trägerschicht angeordneten Korkplatte gebildet wird. Die Dichte der Korkplatte beträgt 450 - 550 kg/m3, die Schichtdicke 3 mm.The DE 20 2007 007 768 U1 relates to a cork floor element which is formed from an insulating layer, a base support layer and a cork plate arranged on the carrier layer. The density of the cork plate is 450 - 550 kg / m3, the layer thickness 3 mm.

Die Druckschrift EP 1 634 696 A1 offenbart einen Bodenbelagelement aus mehreren Schichten, umfassend eine Unterschicht aus Kork, eine Trägerplatte, eine auf der Trägerplatte angeordnete Korkschicht und eine zusätzliche obere Nutzschicht. Die Dicke der Korkschichten beträgt 1 - 3 mm.The publication EP 1 634 696 A1 discloses a flooring element of multiple layers, comprising a cork underlayer, a backing plate, a cork layer disposed on the backing plate, and an additional top wear layer. The thickness of the cork layers is 1 - 3 mm.

Die DE 102 01 087 A1 betrifft einen Bodenbelag bestehend aus einer oberen Schicht aus Kork, einer mittleren Schicht und einer unteren Dämmschicht. Die Dicke der Korkschicht beträgt 1 - 5 mm.The DE 102 01 087 A1 relates to a floor covering consisting of an upper layer of cork, a middle layer and a lower insulating layer. The thickness of the cork layer is 1 - 5 mm.

Die Schichtstruktur der Bodenplatten aus der WO 2009/064211 weist ein Korkfurnier als oberste Nutzschicht auf. Unter dieser Korkfurnierschicht kann eine Schicht aus Presskork angeordnet sein. Unter der Trägerplatte ist eine Presskorkschicht als Dämmschicht vorgesehen. Als Schutzschicht der Korkfurnierschicht wird das Aufbringen einer PVC-Schicht beschrieben.The layer structure of the bottom plates from the WO 2009/064211 has a cork veneer as the top wear layer. Under this cork veneer layer, a layer of press cork may be arranged. Under the support plate a press cork layer is provided as an insulating layer. As a protective layer of the cork veneer layer, the application of a PVC layer is described.

Der Erfindung liegt das technische Problem zugrunde, das Fußbodenpaneel unter Einsparung von Material dünner auszubilden und gleichzeitig die vorteilhaften Eigenschaften bekannter Fußbodenpaneele beizubehalten.
Dieses technische Problem ist bei einem Fußbodenpaneel mit den Merkmalen des Oberbegriffs von Anspruch 1 dadurch gelöst, dass die Korkschicht der Nutzschicht eine Dicke von weniger als 2 mm aufweist, und dass die Korkschicht der Gegenzugschicht eine Dicke von 0,5 mm bis 1,0 mm und eine Dichte von wenigstens 550 kg/m3 aufweist.The invention is based on the technical problem of making the floor panel thinner while saving material and at the same time maintaining the advantageous properties of known floor panels.
This technical problem is solved in a floor panel with the features of the preamble of claim 1, characterized in that the cork layer of the wear layer has a thickness of less than 2 mm, and that the cork layer of the backing layer has a thickness of 0.5 mm to 1.0 mm and having a density of at least 550 kg / m 3 .

Die Erfindung hat erkannt, dass die Schichtdicke der Korkschicht des Fußbodenpaneels auf weniger als 2 mm begrenzt werden kann, wenn gleichzeitig die Dichte der Korkschicht auf einen Wert von wenigstens 550 kg/m3 erhöht wird. Die Dichten bisheriger Korkschichten liegen teilweise deutlich unter 500 kg/m3.The invention has recognized that the layer thickness of the cork layer of the floor panel can be limited to less than 2 mm, if at the same time the density of the cork layer is increased to a value of at least 550 kg / m 3 . The densities of previous cork layers are sometimes well below 500 kg / m 3 .

Bisher wurde Kork einer hohen Dichte für Fußbodenpaneele mit einer großen Schichtdicke der Korkschicht verwendet, während Kork einer geringen Dichte für Fußbodenpaneele mit einer geringen Schichtdicke der Korkschicht verwendet worden ist. Kork einer hohen Dichte wirkt weniger elastisch, wärmeisolierend und trittschalldämmend. Diese Einschränkungen wurden bislang dadurch ausgeglichen, dass Kork mit einer hohen Schichtdicke vorgesehen wurde. Je größer die Schichtdicke eines bestimmten Korkmaterials ist, desto elastischer, wärmeisolierender und trittschalldämmender sind die entsprechenden Fußbodenpaneele. Folglich wurden bislang die unerwünschten Effekte dünner Schichtdicken durch Korkmaterial mit einer geringen Dichte ausgeglichen, da diese Materialien bereits bei geringeren Schichtdicken elastischer, wärmeisolierender und trittschalldämmender sind.Hitherto, high density cork has been used for floor panels having a large layer thickness of the cork layer, while low density cork has been used for floor panels having a small layer thickness of the cork layer. Cork of high density is less elastic, heat insulating and impact sound absorbing. These limitations have been compensated by the fact that cork was provided with a high layer thickness. The greater the layer thickness of a particular cork material, the more elastic, heat-insulating and impact sound insulation are the corresponding floor panels. Consequently, so far, the undesirable effects of thin layer thicknesses were compensated by cork material with a low density, since these materials are elastic, heat-insulating and impact sound insulation even at lower layer thicknesses.

Erfindungsgemäß wurde jedoch erkannt, dass Fußbodenpaneele mit bevorzugten Eigenschaften erhalten werden können, wenn von diesem grundlegenden Prinzip abgewichen wird. Dies ist insbesondere in einem Grenzbereich der Fall, bei dem eine sehr geringe Schichtdicke der Korkschicht von weniger als 2 mm vorgesehen ist. Die Schichtdicken der Korkschichten typischer, am Markt verfügbarer, Fußbodenpaneele betragen dagegen 3 mm und mehr. Zudem betragen die Dichten dieser Korkschichten je nach Schichtdicke in der Regel zwischen 400 kg/m3 und 500 kg/m3.According to the invention, however, it has been recognized that floor panels with preferred properties can be obtained if deviated from this basic principle. This is the case in particular in a border region in which a very small layer thickness of the cork layer of less than 2 mm is provided. In contrast, the layer thicknesses of the cork layers of typical floor panels available on the market amount to 3 mm and more. In addition, the densities of this Cork layers, depending on the layer thickness, usually between 400 kg / m 3 and 500 kg / m 3 .

Der erfindungsgemäß erhaltene Effekt beruht vermutlich darauf, dass bei Schichtdicken der Korkschicht von weniger als 2 mm die Eigenschaften des Fußbodenpaneels in nicht unerheblichem Maße durch die Eigenschaften der Trägerplatte des Fußbodenpaneels mitbestimmt werden. Um den Einfluss der Trägerplatte auf die Eigenschaften des Fußbodenpaneels trotz der sehr geringen Schichtdicken der Korkschicht zurückdrängen zu können, hat es sich als vorteilhaft erwiesen, eine Korkschicht mit einer sehr hohen Dichte zu verwenden, die deutlich über den maximalen Dichten üblicher Fußbodenpaneele liegt.The effect obtained according to the invention is presumably based on the fact that, in the case of layer thicknesses of the cork layer of less than 2 mm, the properties of the floor panel are determined to a not inconsiderable degree by the properties of the support plate of the floor panel. In order to be able to suppress the influence of the carrier plate on the properties of the floor panel despite the very low layer thicknesses of the cork layer, it has proved to be advantageous to use a cork layer with a very high density, which is significantly above the maximum densities of conventional floor panels.

Bei einer ersten vorteilhaften Ausgestaltung des Fußbodenpaneels weist die Korkschicht eine Dicke von weniger als 1,5 mm, insbesondere eine Dicke zwischen 1 mm und 1,5 mm, auf. Auf diese Weise wird nicht nur Material eingespart, sondern auch die Dicke des Fußbodenpaneels insgesamt verringert.In a first advantageous embodiment of the floor panel, the cork layer has a thickness of less than 1.5 mm, in particular a thickness between 1 mm and 1.5 mm. In this way not only material is saved but also the thickness of the floor panel as a whole is reduced.

Alternativ oder zusätzlich kann die Korkschicht eine Dichte von wenigstens 650 kg/m3 aufweisen. Auf diese Weise werden bevorzugte, für Korkmaterialien typische, Eigenschaften erhalten, auch wenn die Schichtdicke der Korkschicht sehr gering gewählt ist.Alternatively or additionally, the cork layer may have a density of at least 650 kg / m 3 . In this way, preferred properties typical of cork materials are obtained, even if the layer thickness of the cork layer is chosen to be very small.

Die Gegenzugschicht weist eine Korkschicht auf. Dadurch können die trittschalldämmenden Eigenschaften des Korks optimal ausgenutzt werden.The counteracting layer has a cork layer. As a result, the impact sound insulating properties of the cork can be optimally utilized.

Dabei weist Korkschicht der Gegenzugschicht eine Dicke von 0,5 mm bis 1,0 mm auf. Bereits bei diesen geringen Schichtdicken können sowohl eine gute Trittschalldämmung als auch ein ausreichender Spannungsausgleich erreicht werden.Cork layer of the counteracting layer has a thickness of 0.5 mm to 1.0 mm. Even with these low layer thicknesses, both a good footfall sound insulation and a sufficient stress compensation can be achieved.

Weiter weist die Korkschicht der Gegenzugschicht eine Dichte von wenigstens 550 kg/m3, oder sogar wenigstens 650 kg/m3, auf. Dann besitzen die Korkschichten der Nutzschicht und der Gegenzugschicht ähnliche Eigenschaften und ähnliche Dicken. Demnach ist die Schrumpfung beider Korkschichten sehr ähnlich, so dass in beiden Schichten ähnliche, sich gegenseitig im Wesentlichen neutralisierende, Spannungen entstehen.Further, the cork layer of the counteracting layer has a density of at least 550 kg / m 3 , or even at least 650 kg / m 3 . Then, the cork layers of the wear layer and the backsheet layer have similar properties and similar thicknesses. Accordingly, the shrinkage of both cork layers is very similar, so that in both layers similar, mutually substantially neutralizing, stresses arise.

Vorzugsweise ist die Trägerplatte aus Holz oder einem Holzwerkstoff gebildet. Trägerplatten aus einem Holzwerkstoff sind kostengünstig herzustellen und weisen günstige mechanische Eigenschaften auf. Außerdem können diese Trägerplatten leicht recycelt werden. Zur Anbringung von Verriegelungssystemen zur leimfreien Verbindung der Paneele an deren Seitenkanten bietet sich die Verwendung einer mitteldichten Faserplatte (MDF) oder einer hochdichten Faserplatte (HDF) an. Kostengünstigere Fußbodenpaneele können mit als Oriented-Strand-Board-Platte (OSB) ausgebildeten Trägerplatten gefertigt werden. Grundsätzlich kommen aber, insbesondere wegen ihrer Resistenz gegenüber Feuchtigkeit, als WPC-Platte (Wood-Plastic-Compound) oder Kompaktlaminat ausgebildete Trägerplatten in Frage.Preferably, the carrier plate is formed of wood or a wood material. Support plates made of a wood material are inexpensive to produce and have favorable mechanical properties. In addition, these carrier plates can be easily recycled. For attaching locking systems for glue-free connection of the panels at their side edges, the use of a medium-density fiberboard (MDF) or a high-density fiberboard (HDF) offers. Lower cost floor panels can be made with Oriented Strand Board (OSB) support plates. In principle, however, in particular because of their resistance to moisture, as a WPC plate (wood-plastic compound) or compact laminate formed carrier plates in question.

Ein guter Kompromiss zwischen mechanischer Festigkeit, der Eignung zur Ausbildung von Verriegelungssystemen und der Dicke der Fußbodenpaneele wird erreicht, wenn die Trägerplatte eine Dicke zwischen 2 mm und 9 mm aufweist. Als besonders zweckmäßig haben sich in diesem Zusammenhang Trägerplatten mit einer Dicke zwischen 3,5 mm und 7,5 mm herausgestellt.A good compromise between mechanical strength, suitability for the formation of locking systems and the thickness of the floor panels is achieved when the support plate has a thickness between 2 mm and 9 mm. As particularly appropriate In this context, carrier plates have been found with a thickness between 3.5 mm and 7.5 mm.

Es ist eine wenigstens teilweise transparente und/oder wenigstens teiltransparente Beschichtung auf der Korkschicht angebracht, die bedarfsweise dekorativen Zwecken dient. Die Beschichtung ist erfindungsgemäß durch einen Lack gebildet. Diese kann zusätzlich ein Melaminharz, eine Folie und/oder Kombinationen davon aufweisen.
Um eine hohe Abriebfestigkeit des Fußbodenpaneels zu erreichen, können auf die Korkschicht der Nutzschicht zusätzlich oder alternativ auch wenigstens ein harzgetränktes Overlaypapier und/oder eine abriebfeste Partikel aufweisende Schicht vorgesehen sein.
Aus fertigungstechnischer Sicht bietet es sich an, wenn die Korkschicht der Nutzschicht und/oder der Gegenzugschicht auf die Trägerplatte aufgeklebt ist. Der Klebstoff ist vorzugsweise ein Kaschier- oder Laminierklebstoff, bei dem es sich um einen lösemittelfreien Klebstoff handeln kann. Als Kaschier- oder Laminierklebstoff kommen Ein- oder Zweikomponentenreaktionsklebstoffe sowie Dispersionsklebstoffe in Betracht. Ein besonders bevorzugter Reaktionsklebstoff beinhaltet Harnstoff. Der Klebstoff erlaubt die Bildung eines dauerhaften und widerstandsfähigen Verbundes.There is an at least partially transparent and / or at least partially transparent coating on the cork layer attached, which serves as needed decorative purposes. The coating is formed according to the invention by a lacquer. This may additionally comprise a melamine resin, a film and / or combinations thereof.
In order to achieve a high abrasion resistance of the floor panel, the cork layer of the wear layer may additionally or alternatively also be provided with at least one resin-impregnated overlay paper and / or a layer having abrasion-resistant particles.
From a manufacturing point of view, it makes sense if the cork layer of the wear layer and / or the Gegenzugschicht is adhered to the support plate. The adhesive is preferably a laminating or laminating adhesive, which may be a solvent-free adhesive. Suitable laminating or laminating adhesives are one- or two-component reaction adhesives and dispersion adhesives. A particularly preferred reaction adhesive includes urea. The adhesive allows the formation of a durable and resistant composite.

Nachfolgend wird die Erfindung anhand einer lediglich Ausführungsbeispiele darstellenden Zeichnung näher erläutert. In der Zeichnung zeigt

  • Fig. 1 den Schichtaufbau eines nicht erfindungsgemäßen Fußbodenpaneels in schematischer Darstellung und
  • Fig. 2 den Schichtaufbau eines erfindungsgemäßen Fußbodenpaneels in schematischer Darstellung.
The invention will be explained in more detail with reference to a drawing illustrating only embodiments. In the drawing shows
  • Fig. 1 the layer structure of a non-inventive floor panel in a schematic representation and
  • Fig. 2 the layer structure of a floor panel according to the invention in a schematic representation.

In Fig. 1 ist ein Fußbodenpaneel 1 mit einer Trägerplatte 2 in Form einer hochdichten Faserplatte (HDF) dargestellt. Auf der Trägerplatte 2 ist eine Nutzschicht 3 aufgebracht, die eine Korkschicht 4 umfasst. Die Korkschicht 4 des dargestellten und insoweit bevorzugten Fußbodenpaneels 1 ist geölt, weist ansonsten aber keine weitere Deckschicht auf. Die Korkschicht 4 ist mit einem Klebstoff 5 in Form eines Reaktionsklebstoffs auf die Trägerplatte 2 aufkaschiert. Der Klebstoff 5 ist unter Druck und Temperatur in einer Presse ausgehärtet.In Fig. 1 a floor panel 1 is shown with a support plate 2 in the form of a high-density fiberboard (HDF). On the carrier plate 2, a wear layer 3 is applied, which comprises a cork layer 4. The cork layer 4 of the illustrated and insofar preferred floor panel 1 is oiled, but otherwise has no further cover layer. The cork layer 4 is laminated to the carrier plate 2 with an adhesive 5 in the form of a reaction adhesive. The adhesive 5 is cured under pressure and temperature in a press.

Als sogenannte Gegenzugschicht 6, welche einem Spannungsausgleich im Fußbodenpaneel 1 dient, ist ebenfalls eine Korkschicht 7 vorgesehen. Auch die Gegenzugschicht 6 weist keine weitere Beschichtung auf und ist mit einem Klebstoff 5 in Form eines Reaktionsklebstoffs auf die Trägerplatte 2 aufkaschiert.As a so-called Gegenzugschicht 6, which serves a voltage equalization in the floor panel 1, a cork layer 7 is also provided. The counteracting layer 6 also has no further coating and is laminated to the carrier plate 2 with an adhesive 5 in the form of a reaction adhesive.

Die Korkschicht 4 der Nutzschicht 3 weist eine Dicke zwischen 1 mm und 1,5 mm und eine Dichte von 550 kg/m3 bis 600 kg/m3 auf. Die Korkschicht 7 der Gegenzugschicht 6 ist etwa 1 mm dick. Das Korkmaterial der Gegenzugschicht 6 weist eine Dichte von etwa 200 kg/m3 auf. Die zwischen den Korkschichten angeordnete Trägerplatte 2 weist eine Stärke von 3,5 mm bis 4,5 mm auf.The cork layer 4 of the wear layer 3 has a thickness between 1 mm and 1.5 mm and a density of 550 kg / m 3 to 600 kg / m 3 . The cork layer 7 of the counteracting layer 6 is about 1 mm thick. The cork material of the counteracting layer 6 has a density of about 200 kg / m 3 . The carrier plate 2 arranged between the cork layers has a thickness of 3.5 mm to 4.5 mm.

In der Fig. 2 ist ein Fußbodenpaneel 1' mit einer Trägerplatte 2' in Form einer hochdichten Faserplatte (HDF) und einer Dicke zwischen 5 mm und 6,5 mm dargestellt. Auf der Trägerplatte 2' ist eine Nutzschicht 3' aufgebracht. Die Nutzschicht 3' umfasst eine untere Korkschicht 4' und eine obere Deckschicht 8. Die Deckschicht umfasst ein Dekor, das durch dekorativen Direktdruck hergestellt worden ist. Das Dekor kann einer Holzoberfläche, einer keramischen Oberfläche oder einer Steinoberfläche nachempfunden sein. Das Dekor kann alternativ auch einem Fantasiedekor entsprechen.In the Fig. 2 is a floor panel 1 'with a support plate 2' in the form of a high-density fiberboard (HDF) and a thickness between 5 mm and 6.5 mm shown. On the support plate 2 ', a wear layer 3' is applied. The wear layer 3 'comprises a lower cork layer 4' and an upper cover layer 8. The cover layer comprises a decor which produced by decorative direct printing. The decor can be modeled on a wooden surface, a ceramic surface or a stone surface. The decor can alternatively also correspond to a fantasy decor.

Bedarfsweise kann zwischen der Korkschicht und der das Dekor bildenden Schicht eine nicht dargestellte Grundierung vorgesehen sein, um die optische Qualität des Direktdrucks zu verbessern. Auf der das Dekor bildenden Schicht kann noch eine ebenfalls nicht dargestellte Schutzschicht aufgebracht sein, die ihrerseits wiederum mehrschichtig aufgebaut sein kann. Die Schutzschicht weist insbesondere einen UVbeständigen Lack auf. Zudem können abriebfeste Partikel und/oder ein harzgetränktes Overlaypapier vorgesehen sein.If desired, a primer, not shown, may be provided between the cork layer and the decorating layer to improve the optical quality of the direct printing. On the decor forming layer may also be applied a protective layer, also not shown, which in turn may be constructed in several layers. The protective layer has in particular a UV-resistant lacquer. In addition, abrasion-resistant particles and / or a resin-impregnated overlay paper can be provided.

Die Korkschicht 4' der Nutzschicht ist ebenso wie die Gegenzugschicht 6' mittels eines Klebstoffs 5' mit der Trägerplatte 2' verbunden. Die Gegenzugschicht 6' besteht beim dargestellten und insoweit bevorzugten Fußbodenpaneel 1' aus einer Korkschicht 7'. Bedarfsweise können jedoch noch weitere Schichten, wie eine Dampfsperre, Lackschicht oder dergleichen, vorgesehen sein.The cork layer 4 'of the wear layer is, like the counteracting layer 6', connected to the support plate 2 'by means of an adhesive 5'. The Gegenzugschicht 6 'consists in the illustrated and so far preferred floor panel 1' of a cork layer 7 '. If necessary, however, further layers, such as a vapor barrier, lacquer layer or the like, may be provided.

Die Korkschicht 7' der Gegenzugschicht 6' weist eine Dicke von weniger als 1 mm, und zwar etwa 0,7 bis 0,9 mm, auf. Die Dichte der Korkschicht 7' der Gegenzugschicht 6' entspricht beim dargestellten und insoweit bevorzugten Fußbodenpaneel 1' der Dichte der Korkschicht 4' der Nutzschicht 3', nämlich wenigstens 600 kg/m3, insbesondere wenigstens 650 kg/m3. Die Korkschicht 4' der Nutzschicht 3' ist dabei etwas dicker als die Korkschicht 7' der Gegenzugschicht 6' ausgebildet, nämlich etwa 1 mm.The cork layer 7 'of the counteracting layer 6' has a thickness of less than 1 mm, approximately 0.7 to 0.9 mm. The density of the cork layer 7 'of the counteracting layer 6' corresponds in the illustrated preferred floor panel 1 'to the density of the cork layer 4' of the wear layer 3 ', namely at least 600 kg / m 3 , in particular at least 650 kg / m 3 . The cork layer 4 'of the wear layer 3' is somewhat thicker than the cork layer 7 'of the counteracting layer 6', namely approximately 1 mm.

Claims (7)

  1. Flooring panel (1,1') having a wear layer (3,3'), a carrier panel (2,2') and a backing layer (6,6'),
    - wherein the wear layer (3,3') comprises a cork layer (4,4'),
    - wherein the cork layer (4, 4') of the wear layer (3,3') has a density of at least 550 kg/m3 and
    - wherein the backing layer (6,6') has a cork layer (7,7'),
    - wherein the cork layer (4, 4') of the wear layer (3, 3') is coated with a lacquer, characterised in that
    - the cork layer (4,4') of the wear layer (3,3') has a thickness of less than 2 mm, and
    - that the cork layer (7,7') of the backing layer (6,6') has a thickness of 0.5 mm to 1.0 mm and a density of at least 550 kg/m3.
  2. Flooring panel according to Claim 1,
    characterised in that
    the cork layer (4,4') of the wear layer (3,3') has a thickness of less than 1.5 mm.
  3. Flooring panel according to Claim 1 or 2,
    characterised in that
    the cork layer (4,4') of the wear layer (3,3') has a density of at least 650 kg/m3.
  4. Flooring panel according to any one of Claims 1 to 3,
    characterised in that
    the cork layer (7,7') of the backing payer (6,6') has a density of at least 650 kg/m3.
  5. Flooring panel according to any one of Claims 1 to 4,
    characterised in that
    the carrier panel (2,2') is a fibreboard formed from wood or a wood material, in particular a medium density fibreboard (MDF), a high density fibreboard (HDF), an oriented strand board panel (OSB) or a WPC panel (wood-plastic compound).
  6. Flooring panel according to any one of Claims 1 to 5,
    characterised in that
    the carrier panel (2,2') has a thickness between 2 mm and 9 mm, in particular a thickness between 3.5 mm and 7.5 mm.
  7. Flooring panel according to any one of Claims 1 to 6,
    characterised in that
    the cork layer (4,4', 7, 7')) of the wear layer (3,3') and/or the backing layer (6,6') is glued to the carrier panel (2,2').
EP11720747.2A 2010-05-19 2011-05-10 Floor panel with a wear layer comprising cork Active EP2572063B1 (en)

Priority Applications (3)

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PL11720747T PL2572063T3 (en) 2010-05-19 2011-05-10 Floor panel with a wear layer comprising cork
RS20190415A RS58544B1 (en) 2010-05-19 2011-05-10 Floor panel with a wear layer comprising cork
HRP20190411TT HRP20190411T1 (en) 2010-05-19 2019-03-04 Floor panel with a wear layer comprising cork

Applications Claiming Priority (2)

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DE102010020962.7A DE102010020962B4 (en) 2010-05-19 2010-05-19 Floor panel with a wear layer comprising a cork layer
PCT/EP2011/057470 WO2011144485A2 (en) 2010-05-19 2011-05-10 Floor panel having a wear layer that comprises a cork layer

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EP2572063A2 EP2572063A2 (en) 2013-03-27
EP2572063B1 true EP2572063B1 (en) 2019-02-20

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DE (1) DE102010020962B4 (en)
HR (1) HRP20190411T1 (en)
LT (1) LT2572063T (en)
PL (1) PL2572063T3 (en)
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CN103526911B (en) * 2013-10-09 2015-08-26 桂林舒康建材有限公司 A kind of preparation method of light-weight high-strength wood-plastic floor
CH709448A1 (en) * 2014-03-31 2015-10-15 Proverum Ag A method for processing a useful surface of a floor covering.
DE102014006552A1 (en) * 2014-05-06 2015-11-12 Hamberger Industriewerke Gmbh paneling
US9487958B2 (en) 2014-09-02 2016-11-08 Boa-Franc S.E.N.C. Composite engineered wood material piece composed of an HDF mid-layer and an OSB bottom layer
PT3241958T (en) * 2014-12-05 2022-03-22 Dainippon Printing Co Ltd Decorative material using cork sheet
KR101722537B1 (en) * 2015-10-23 2017-04-03 (주)글로벌오토트레이딩 Waterproof and Soundproof available Multifunction Floor Board
RU196292U1 (en) * 2019-10-09 2020-02-25 Денис Александрович Фомахин Corkboard for cladding interior
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RS58544B1 (en) 2019-04-30
WO2011144485A2 (en) 2011-11-24
EP2572063A2 (en) 2013-03-27
WO2011144485A3 (en) 2012-02-16
PT2572063T (en) 2019-03-29
PL2572063T3 (en) 2019-06-28
HRP20190411T1 (en) 2019-04-19
DE102010020962A1 (en) 2011-11-24
DE102010020962B4 (en) 2018-08-16
LT2572063T (en) 2019-04-10

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