Patent Application
20130029100
1. Field of Use of the Invention
The invention relates to a material plate, in particular for the manufacture of furniture, floor coverings or door elements, comprising at least one central substrate layer and one decorative layer on at least one side of the substrate layer.
2. Prior Art
Material plates of the generic type are mainly used for the manufacture of furniture, door elements or floor panels. Here, for the manufacture of the material plates, a fibrous material is used which is covered with several layers at least on one side, preferably on both sides, to be bonded in a press by melting on a hot-melt adhesive. For this reason, the layers are impregnated with an amino resin, for example melamine formaldehyde resin, so that the amino resin layer can cure during pressing under the simultaneous action of heat, and a bond of the individual layers with the substrate layer is created. The layers used here consist at least of one decorative layer and one overlay. The decorative layer can consist of the imitation of a natural wood or stone surface.
Material plates produced in this manner are preferably employed for the manufacture of furniture. It is equally possible to produce door leaves or panels for floors or walls. Preferably, patterns are used here which include a wood grain, where it is important to imitate the latter as faithfully as possible both in view of the printed design (decorative layer) and the required embossment. For this reason, pressing plates are used that include a reversed printing of the material plates to be pressed. Thus, the structure of the pressing plate can be transferred to the upper cover layer of the substrate layer in the pressing procedure. For this, normally large pressing plates having a format of 2.3×6 m are used to produce large-sized material plates which can be subsequently cut for the respective intended purpose in the furniture industry. The same applies to panels and door leaves.
The particular advantage of the present invention consists in that arbitrary geometric designs can be produced to perform surface structuring. This can be done, for example, by only having an edge course of the individual areas in an irregular form, but it is equally possible to additionally provide the individual areas with a separate structure which, for example, points into different directions. Thus, a strictly graphic motif is created which is suited for the manufacture of furniture as well as for the manufacture of door elements or panels, no matter whether for floors or for walls.
To meet individual customer demands and realize new patterns, it is an object of the present invention to provide a material plate and a pressing plate that permit multifarious designs.
To achieve the object, it is provided for the decorative layer to comprise adjacent adjoining areas which at least partially comprise a course of the decoration and/or structure in different directions. Further advantageous embodiments of the invention can be taken from the subclaims.
In contrast to the former tendency of providing door leaves, furniture doors or fronts with a uniformly extending decoration, which essentially consists of a wood grain and has an accurately-fitting embossment, one is giving up on this former procedure and chooses a decorative layer which comprises adjacent adjoining areas, the areas at least partially comprising a course of the decoration and/or structure in different directions. The material plate is thus subdivided into a plurality of adjacent areas which differ from the conventional patterns in that strictly graphic patterns are formed which in turn comprise a course of the decoration and/or structure that extends in different directions. Thus, attractive patterns are achieved which can be employed in the furniture industry in an attractive and future-oriented way. The individual areas can comprise an accurately-fitting embossment in view both of the course of the decoration and the course of the structure. An accurately-fitting embossment is defined as a particular embossment in which the pattern of the decorative layer is in concordance with the embossed structure of the pressing plate. Thus, for example, wood pores can be particularly emphasized by corresponding deep embossing, so that an observer will get the impression that it is naturally grown wood, wherein the existing embossment furthermore creates a surface feel which will give the impression of a natural wood material when it is touched. The use of a wood decor is here only mentioned by way of example, it can equally be the structure of a granite surface or other natural materials.
By the formation and different structuring of adjacent adjoining areas, a surface design is achieved here which opens up new multifarious scopes for design to produce surfaces of furniture, door elements or floor panels.
A further aspect of the invention provides that the areas of the decorative layer can have an irregular edge course, in particular following a draft of traverse, wherein adjacent areas can at least partially have a common edge course. Thus, the individual areas are strictly defined with respect to each other and can at least partially have a common edge course. It is decisive that the areas themselves can be arbitrarily varied as to their sizes and designs and that it is thus possible to represent an irregular edge course, for example, as following a draft of traverse. As an alternative, it is possible that the areas consist of simple geometric shapes, in particular of circles, triangles, polygons or rectangles, with an at least partially straight edge course. With this design, too, adjacent areas have a partially common edge course or can additionally penetrate each other. Penetrating in this case means that individual shapes, for example a triangle, projects with a tip into another area. It is thus possible to shape the areas such that they either only have an irregular edge course or are combined with strictly geometric shapes. For example, a section of the edge course could be strictly straight-lined, and a further section could be curved, where the number of different areas can be arbitrarily combined with each other, so that individual areas are joined, as in a jigsaw.
For the manufacture of the material plate, here a decorative layer is used which consists at least of a decorative paper and an embossment on one side of the material plate. To this end, presses are used which can perform an embossment both on the face and optionally also on the reverse of the material plate, wherein the employed pressing plates are preferably provided with an accurately-fitting reversed structure of the surface to be produced. By the concordance of the pressing plate structure with the decorative paper, in the present case, the impression of an inlaid work with corresponding raised and lower regions is achieved in the individual areas.
Depending on the intended purpose, the material plates can here be provided with a decorative layer and an embossment on one side or optionally on either side. To bond the individual layers to the substrate layer, it is provided here that at least on one side, preferably on either side, a layer of glue is disposed between the substrate layer and the decorative layer.
To be able to emboss particularly deep structures, one or several underlays are preferably inserted between the substrate layer and the decorative layer, which can consist, for example, of kraft paper impregnated with resin, or glass mat woven impregnated with resin. Such an arrangement is selected at least for one side of the material plate, optionally on both sides. It is thus possible to emboss particularly deep structures without the substrate layer also having to be embossed.
To achieve surfaces of particularly high-quality which are also resistant to conventional cleansing agents, it is furthermore provided that at least on one side of the material plate, a layer sequence of overlay and decorative layer is provided. With the aid of the overlay, which is usually transparent, the sensitive decorative layer is finally protected, wherein the overlay can also be impregnated with a layer of glue, that means with an amino resin, so that a permanent bond between the overlay, the decorative layer and the substrate layer can be produced.
If high abrasion resistance of the produced surfaces of the material plates is desired, the decorative layers and/or overlays can be furthermore enriched with abrasion-resistant particles. As abrasion-resistant particles, corundum can be essentially considered, however, already cured melamine or glass can be also introduced into one of the upper layers to thus design the layer to be abrasion-resistant and more stable against wear.
As the substrate layer, fibrous materials or materials containing chips can be basically used, such as MDF, HDF, chip, OSB or plywood. Here, the desired quality and strength of the material plate is important to be able to employ the latter, for example, as material plate for the furniture industry or the like.
It is furthermore an object underlying the invention to provide a novel pressing plate which is suited for the manufacture of material plates with different areas.
The technical problem is solved by the pressing plate comprising a surface structure which comprises adjacent adjoining areas which at least partially comprise a course of the decoration and/or the structure in different directions.
To design the embossment of the material plates as simple as possible and for example permit an accurately-fitting embossment of the material plates, a pressing plate is suggested which has a corresponding reversed structure in the desired shape with the creation of different areas. The individual areas here at least partially comprise a course of the decoration and/or structure in different directions, so that strictly graphic patterns are formed.
In the aspect of the invention, it is here provided that the pressing plate is subdivided into individual areas which comprise an irregular edge course, in particular following a draft of traverse. The areas of the pressing plates are here arranged directly one next to the other and accordingly have a partially identical edge course. However, it is decisive that individual areas have a preferential direction in view of their grain or structuring extending in different directions; thus arbitrary graphic patterns can be created which can have, for example, an irregular edge course. As an alternative, it is possible that the areas consist of simple geometric shapes, in particular of circles, triangles, polygons or rectangles, with an at least partially straight edge course, wherein adjacent areas can also be designed so as to penetrate each other.
By the design of the pressing plates with individual areas, which at least partially comprise different courses of structure in different directions, the possibility of subjecting the material plates to corresponding embossment is created. Here, the areas of the pressing plates are adjusted to the decoration pattern such that an accurately-fitting embossment can be made.
The invention will be furthermore illustrated again with reference to two embodiments in the drawings.
In the drawings
It is furthermore possible to vary the series of the individual layer sequence with respect to each other, for example, a layer of glue can first be placed onto the substrate layer 2, then the decorative layer 3, 13, and subsequently an overlay 22, 23. Furthermore, layers of glue could be disposed between the individual layers if these are not impregnated with amino resin themselves, ensuring bonding after heating and curing. In the present case, the type of sequence of the individual layers is not very important, but rather the fact that the decorative layer 3, 13, no matter in what position it is included in the layer sequence, has a graphic design with individual areas 4, 14.
| Number | Date | Country | Kind |
|---|---|---|---|
| 20 2010 006 959.9 | May 2010 | DE | national |
This application is the U.S. national stage of International Application No. PCT/DE2011/001689, filed on May 17, 2011, and claims the benefit thereof. The international application claims the benefits of German Application No. DE202010006959.9 filed on May 19, 2010; all applications are incorporated by reference herein in their entirety.
| Filing Document | Filing Date | Country | Kind | 371c Date |
|---|---|---|---|---|
| PCT/DE2011/001689 | 5/17/2011 | WO | 00 | 10/10/2012 |
