Flooring

Abstract

Floor covering (1), in particular for indoor use, comprising a flat base body (2), wherein a decorative layer (6) is arranged on the base body (2), wherein the decorative layer (6) is preferably a wood layer and in particular a real wood veneer, characterized in that the base body (2) comprises straw fibers.

Description

The invention relates to a floor covering, in particular for the interior region, which has a flat base body and a decorative layer, in particular a real wood veneer, arranged on the base body.The trend toward sustainable production covers more and more areas of technology. In many products, dispensing with plastics is far above the consumer's desire list. Therefore, alternative materials are gradually being included in a wide variety of fields of technology, replacing previously used plastics.It is known, for example, that plastics are replaced by cardboard or paper. However, the use of cardboard and paper is also disadvantageous. Cardboard and paper consist for the most part of wood fibers, which have to be obtained and processed in an energy-intensive manner. If it is desired to have good quality, the raw material wood is rather slowly renewable. This is faced with a need which leads to the demand being able to be covered with little lasting action.A part of the demand for the raw material wood is also placed on the production of floor coverings. For example, laminate or pallet floors are provided with a base body on which a decorative layer is applied. The base body is also referred to as a carrier layer. The base body typically has a high proportion of wood fibers.It is therefore an object of the present invention to provide a floor covering which does not have the disadvantages of the prior art described, but rather makes it possible to be particularly durable.This object is achieved by a floor covering according to claim 1.The floor covering according to the invention is in particular a floor covering for the interior region. A decorative layer is arranged on a base body of the floor covering. The decorative layer is preferably a wood layer. In particular, the decorative layer is a real wood veneer. According to the invention, it is provided that the base body has straw fibers. In particular, it is provided that the straw fibers replace wood fibers that are known from conventional floor coverings. It is thus conceivable that the base body does not have wood fibers. However, it is also conceivable for the base body to have both straw fibers and wood fibers. Straw fibers originate rapidly from renewable plants. Typically, the straw of harvested plants is changed during harvesting and then introduced into the soil as fertilizer. Alternatively, the straw of harvested plants can be taken up and pressed, for example, into bales which are used further in animal keeping. The floor covering according to the invention makes use of this raw material reservoir. In comparison with wood fibers, straw fibers can be produced in a significantly more durable manner, faster and renewable annually.Advantageous embodiments and developments of the invention can be derived from the dependent claims and from the description with reference to the drawings.According to a preferred embodiment of the present invention, it is provided that the base body has a lockable tongue-and-groove connection on at least two opposite edges, which is connected integrally to the base body. The tongue-and-groove connection can preferably be hooked into one another in a form-fitting manner for locking. It is particularly preferably provided that the tongue-and-groove connection is a click connection. This significantly simplifies the laying of the floor covering. Laymen are also hereby enabled to achieve good results in laying the floor covering.An embodiment of the present invention is particularly preferred in which it is provided that the base body has between 75 volume percent and 95 volume percent straw fibers, wherein the base body preferably has between 80 volume percent and 90 volume percent straw fibers, wherein the base body particularly preferably has between 84 volume percent and 87 volume percent straw fibers. A high proportion of straw fibers increases the sustainability of the floor covering.According to a further preferred embodiment of the present invention, it is provided that the base body has a binder. Preferably, it is provided that the binder comprises MgO. It is conceivable for the main body to have between 1 volume percent and 10 volume percent MgO, wherein the main body preferably has between 5 volume percent and 9 volume percent MgO, wherein the main body particularly preferably has between 7 volume percent and 8 volume percent MgO. It is conceivable that the MgO is provided as causally burnt magnesite. The MgO, i.e. magnesium oxide, serves for the connection of the straw fibers. It has been found that the stated proportions, in particular a proportion of between 7 and 8 volume percent, represent a good compromise between strength of the base body and low weight of the base body.According to a further preferred embodiment of the present invention, it is provided that the binder comprises MgSO 4. It is conceivable for the main body to have between 1 volume percent and 10 volume percent MgSO 4 wherein the main body preferably has between 1 volume percent and 7 volume percent MgSO 4 wherein the main body particularly preferably has between 2 volume percent and 4 volume percent MgSO 4. Magnesium sulfate also serves to bind the straw fibers. In particular in combination with MgO, the straw fibers can be bonded to one another in an excellent manner. The combination of 5 to 9 volume percent MgO, in particular 7 to 8 volume percent MgO, and 1 to 7 volume percent MgS0 4 and in particular 2 to 4 volume percent MgSO 4 in particular leads to an excellent bonding of the porous straw fibers.Furthermore, according to a preferred embodiment of the present invention, it is provided that the main body has between 1 volume percent and 10 volume percent of water, wherein the main body preferably has between 1 volume percent and 7 volume percent of water, wherein the main body particularly preferably has between 2 volume percent and 4 volume percent of water. The water assists the binding capacity of the magnesium oxide and of the magnesium sulfate in the base body. The mixture of magnesium oxide, magnesium sulfate and water in the claimed ratios gives a cementitious substance which leads to high stability of the floor covering.According to a further preferred embodiment of the present invention, it is provided that the base body is cold-pressed. This advantageously makes it possible to bring the base body into the desired shape with very little energy input. This further increases the sustainability of the floor covering.For this purpose, it is preferably provided that the straw fibers and the MgO or the MgSO 4 have been brought together before the cold pressing. This results in the possibility that the base body is further processed in a shape-retaining manner. In particular, final parameters of the base body, such as thickness or density, can be already defined during cold pressing.An embodiment of the present invention is particularly preferred, in which provision is made for a counter-guard to be arranged on a rear side of the base body, which is opposite the decorative layer. The counter-tension is provided for the purpose of no deformations arising as a result of tension on the side opposite the counter-tension.According to a further preferred embodiment of the present invention, it is provided that the decorative layer and preferably the counter-coating are glued to the base body. In this case, it is provided that the decorative layer and preferably the counter-coating are bonded to the base body in particular with a PU adhesive. This type of connection is easy to implement and mechanically stable. In particular, the PU adhesive is excellently suitable for adhering to the surface of the base body influenced by the straw fibers.Further details, features and advantages of the invention are evident from the drawings and from the following description of preferred embodiments with reference to the drawings. The drawings illustrate only exemplary embodiments of the invention, which do not restrict the concept of the invention.The following are shown: FIG. 1 is a schematic view of a floor covering according to an exemplary embodiment of the present invention, FIG. 2 is a sectional schematic view of two floor coverings according to exemplary embodiments of the present invention, FIG. 3 is a sectional schematic view of two floor coverings according to exemplary embodiments of the present invention with locked tongue and groove connectionFIG. 1 shows a schematic view of a floor covering 1 according to an exemplary embodiment of the present invention. The floor covering 1 in the sense of the present description comprises an element. If a floor is provided with the floor covering 1, the floor covering 1 is therefore laid, a plurality of elements are arranged lying against one another on the floor. The floor covering 1 has a base body 2. The base body 2 is preferably rectangular. However, it is also conceivable that the base body 2 can have a different shape, such as in particular rectangular oblong or dielene-shaped.On two opposite sides of the base body 2 a tongue and groove connection 3, 4 is provided. The tongue-and-groove connection 3, 4 can likewise be seen in the sectional views of FIGS. 2 and 3. It has a groove 3 and a tongue 4. The groove 3 is concealed in FIG. 1 and therefore cannot be seen. When laying the floor covering 1, the tongue 4 of one element is inserted into the groove 3 of another element and locked in it in a form-fitting manner.FIG. 3 shows two elements of the floor covering 1 connected in this way. As a result, it is particularly simple to lay the floor tiles 1 to a tile floor.A decorative layer 6 is arranged on the surface of the base body 2. The decorative layer 6 comprises a usable layer (not shown separately) and can thus also increase the usability of the floor covering 1 in addition to purely optical effects. Thus, the slip resistance or the abrasion class can be adjusted via a corresponding usable layer. The decorative layer 6 is a real wood veneer here. It is conceivable for the decorative layer 6 to be adhesively bonded, for example using a PU adhesive, or laminated on. The wear layer can likewise be printed, adhesively bonded or laminated on.On the surface of the base body 2 which is opposite the decorative layer 6, a counter-coating 7 is arranged. This prevents the floor covering 1 from bulging and remaining in a uniformly flat shape.In order to improve the sustainability of the floor covering, the base body 2 has straw fibers. The proportion of straw fibers in the base body here is about 86 percent by volume. In order to achieve good strength, the base body 2 further comprises MgO and MgSO 4. The proportion of MgO is about 7 volume percent. The proportion of MgSO 4 is about 3 volume percent. Together with about 4 percent by volume of water, this yields a cementitious composition which bonds the straw fibers excellently and gives the floor covering excellent strength. For this purpose, the base body 2 is cold-pressed after the bringing together of straw fibers, MgO, MgSO 4 and water. The material of the base body 2 produced as a result is very well suited for milling the tongue-and-groove connection 3, 4 into the base body 2.List of reference numbers:1 Floor covering 2 Base body 3 Groove 4 Tongue 6 Decorative layer 7 Counter-tension

Claims

Floor covering (1), in particular for the interior region, having a flat base body (2), wherein a decorative layer (6) is arranged on the base body (2), wherein the decorative layer (6) is preferably a wood layer and in particular a real wood veneer, characterized in that the base body (2) has straw fibres.Floor covering (1) according to claim 1, characterised in that the base body (2) has a lockable tongue-and-groove connection (3, 4) on at least two opposite edges, which is connected integrally to the base body (2), wherein the tongue-and-groove connection (3, 4) can preferably be hooked into one another in a form-fitting manner for locking, wherein the tongue-and-groove connection (3, 4) is in particular a click connection.Floor covering (1) according to one of the preceding claims, characterized in that the base body (2) has between 75 volume percent and 95 volume percent straw fibers, wherein the base body (2) preferably has between 80 volume percent and 90 volume percent straw fibers, wherein the base body (2) particularly preferably has between 84 volume percent and 87 volume percent straw fibers.Floor covering (1) according to one of the preceding claims, characterized in that the base body (2) has between 1 volume percent and 10 volume percent MgO, wherein the base body (2) preferably has between 5 volume percent and 9 volume percent MgO, wherein the base body (2) particularly preferably has between 7 volume percent and 8 volume percent MgO.Floor covering (1) according to one of the preceding claims, characterized in that the base body (2) has between 1 volume percent and 10 volume percent MgSO 4 wherein the base body (2) preferably has between 1 volume percent and 7 volume percent MgSO 4 wherein the base body (2) particularly preferably has between 2 volume percent and 4 volume percent MgSO 4.Floor covering (1) according to one of the preceding claims, characterized in that the base body (2) has between 1 volume percent and 10 volume percent of water, wherein the base body (2) preferably has between 1 volume percent and 7 volume percent of water, wherein the base body (2) particularly preferably has between 2 volume percent and 4 volume percent of water.Floor covering (1) according to one of the preceding claims, characterized in that the base body (2) is cold-pressed.Floor covering (1) according to claim 7 in combination with claims 4 or 5, characterised in that before the cold pressing the straw fibres and the MgO or the MgSO 4 have been brought together.Floor covering (1) according to one of the preceding claims, characterized in that a counter-lining (7) is arranged on a rear side of the base body (2) which is opposite the decorative layer (6).Floor covering (1) according to one of the preceding claims, characterized in that the decorative layer (6) and preferably the backing (7) are bonded to the base body (2), wherein the decorative layer (6) and preferably the backing (7) are bonded to the base body (2), in particular with a PU adhesive.

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