EP2412891A2 - Fire-retardant architectural panel - Google Patents

Abstract

The plate (1) has a lacquer layer (4) provided on an electrical conductive board (3), and/or a decoration layer provided on a metallic injection layer. The decoration layer comprises a decoration board and/or a lacquer layer i.e. clear lacquer, and/or surface treated layer. The injection layer is plastically deformed under the lacquer layer and/or surface treated layer after injection of metal. A base plate (2), the conductive board, the metallic injection layer and the lacquer layer or decoration layer are arranged in series. The conductive board is designed as a sheet metal or foil. The base plate is designed as a gypsum bounded plate, cement bounded plate, silicate bounded plate, gypsum fiber plate, gypsum cardboard plate, hard foam plate and vermiculite plate. The decoration board is designed as a metallic board, plastic board or laminate. An independent claim is also included for a method for manufacturing an architecture plate.

Description

FIELD OF THE INVENTION

The present invention relates to a particular refractory architectural plate that can be used for planking walls, ceilings or even floors and is characterized in that it is robust against mechanical and chemical influences and preferably also not flammable.

STATE OF THE ART

Building panels are already known from the prior art, which are used for interior design of buildings in the so-called drywall or for cladding walls and ceilings and meet the requirements of non-combustibility. Accordingly, such building panels can be used in buildings for planking walls, in which the fire protection plays an important role, such as in public buildings such as hospitals and the like. Examples include gypsum fiber boards or gypsum board, cement bonded boards and silicate slabs of silicate-bound materials, such as vermiculite. The known gypsum fiber boards are made of gypsum, in which fibers of crushed wood or waste paper are stored, while gypsum plasterboard consist of plaster with Kartonagebezug. To produce the fire retardant properties, such plates are provided with ceramic coatings or obtained a Glasfaserarmierung.

In the known products, however, there is the problem that there are only limited possibilities for the design of the surface and in particular no very smooth surfaces can be achieved. In addition, such architectural plates have the disadvantage that they have a low mechanical stability in the direction perpendicular to the main surfaces, ie the surfaces which are bounded by the longest side edges and thus have a low impact resistance.

DISCLOSURE OF THE INVENTION OBJECT OF THE INVENTION

It is therefore an object of the invention, the known building boards in particular for use in areas where the building boards may not be flammable, to further develop that a variable and attractive appearance can be designed and that also an increased mechanical strength in the direction perpendicular to the main surfaces and in particular an increased impact resistance is achieved.

TECHNICAL SOLUTION

This object is achieved with an architectural plate with the features of claim 1 and a method with the features of claim 10. Advantageous embodiments are the subject of the dependent claims.

The architectural plate according to the invention comprises a base plate on which one or two sides or on several sides of an electrically conductive plate is applied, which is coated by means of a paint, in particular powder coating or other abrasion resistant and insensitive to mechanical effects paint.

Alternatively or additionally, the architectural plate comprises a metal spray layer disposed on the base plate. On the metal spray layer, the electrically conductive plate can be arranged, which causes a good adhesion of the electrically conductive plate.

Instead of an electrically conductive plate, a decorative plate may be provided on the metal spray layer, which may be formed of plastic, metal or a laminate such as HPL, or the like. Decors may be printed on the decorative panel and / or paints, such as powder coatings, wet paints, clearcoats, etc. may be applied, e.g. by spraying, brushing, rolling and the like. Printed decors may also be provided in the case of the electrically conductive plate.

On the metal spray layer, which may preferably be formed of zinc, zinc alloys, aluminum, aluminum alloys, steel or stainless steel, instead of the electrically conductive Plate or a decorative plate and decorative layers by means of printing, eg digital printing, and / or painting with eg wet paints, clearcoats, powder coatings, etc. are applied, in which case the metal spray before by plastic deformation by rolling with a steel roller or treatment (peeling) with a Squeegee, especially steel squeegee, is smoothed. The plastic deformation relates in particular to the leveling of surface tips. In addition, other smoothing methods can be used.

Prior to printing and / or painting the metal spray layer, the plastically deformed metal spray layer may be further ground and / or polished and / or brushed to produce a smooth surface. In the case of a smoothed metal sprayed coating of a metal having a respectable and insensitive surface, such as e.g. Aluminum or stainless steel, the ground and / or polished or brushed surface can be used as a decorative layer, so that a further painting is no longer necessary.

An electrically conductive plate is understood to mean a planar and flat component which consists of or contains an electrically conductive material. The electrically conductive plate or decoration plate is a self-contained component that is inherently stable such that the electrically conductive plate or decoration plate supports the base plate in a state of being connected to the base plate, and for increased stability and strength of the architectural plate provides. The electrically conductive plate or decorative plate may be rigid or flexible or flexible.

The electrically conductive plate and / or the metal sprayed layer and the decorative layers in the form of decorative panels or printing or lacquer layers may be arranged in particular on one or both main surfaces of the base plate, wherein main surfaces are those surfaces of a cuboidal plate, which spanned by the longest side edges are. Since an architectural plate and thus also the base plate usually has a large length and width, but a small thickness, the major surfaces are correspondingly spanned by the width and length. In addition, the secondary surfaces, which are spanned by the length and thickness or by the width and thickness of the base plate, may be formed in the same way.

The electrically conductive plate is formed in particular by a metal sheet, a foil or a thin plate of metal or a metal alloy. A metal sheet or a metal foil are preferably produced by means of a suitable rolling process, while a metal plate can also be produced by casting or a combination of casting and rolling processes. Preferably, the electrically conductive plate is formed as a metal sheet, a metal foil or a metal plate having a smooth surface, which has a low, in particular a minimum feasible, roughness.

The electrically conductive plate may in particular be formed by a sheet, a foil or a plate of aluminum or an aluminum alloy. In addition to aluminum and corresponding aluminum alloys also stainless steel sheets or foils or plates or galvanized stainless steel sheets or foils or plates come into question.

Alternatively, the electrically conductive plate may be formed by a carbon fiber reinforced plate or a carbon fiber woven plate. Due to the electrical conductivity of carbon fibers, powder coating can be made possible. At the same time, the carbon fibers have a stabilizing effect and ensure that the architectural plate is not flammable. Carbon fiber reinforced panels are particularly useful when the architectural panel is to have a textured surface, as a surface of the carbon fiber reinforced panel may have a corresponding pattern.

The electrically conductive plate, in particular, if it is formed as a sheet, foil or plate of metal or a metal alloy, may preferably have a thickness of more than 0.2 mm, in particular more than 0.3 mm or more than 0.5 mm, in particular in the thickness range of 0.25 to 0.75 mm. When using carbon fiber reinforced panels, a greater thickness of at least 1 mm can be selected. The metal spray layer may be provided with a thickness of 30 μm to 150 μm, preferably 40 μm to 100 μm.

The baseplate may be made of gypsum, cement, and / or silicate bonded panels, such as gypsum fiberboards, gypsum board, vermiculite panels, or equivalent cementitious materials. Hard foam boards, in particular made of polyvinyl chloride, polystyrene or polyurethane are conceivable.

The gypsum fiberboards may contain appropriate fibers of crushed wood or waste paper in a known manner.

The electrically conductive plate can be glued to the base plate or a metal sprayed layer via a suitable adhesive, the use of fire-resistant adhesives being preferred. Accordingly, a decorative plate can be glued. In addition, the electrically conductive plate can also be directly connected directly to the base plate material during the pressing of the base plate or in general during the production of the base plate.

On the electrically conductive plate, a paint is arranged, which may be in particular a powder coating or wet paint, which cures by ultraviolet radiation. However, other paints can be used. The application of the paints in a conventional manner, in particular for the crosslinking and curing of the powder radiation curing and / or hot air can be used.

The architectural plate is preferably made fireproof. The inventive construction can ensure that the flame retardant in the form of a coating or impregnation of the base plate is not destroyed during manufacture.

A corresponding architectural plate can thus be made non-combustible and thus offers a good possibility of refractory design of a room, as in particular on the combination of electrically conductive plate, in particular in the form of aluminum plates, sheets or foils and paint application a variable design of the surface is possible , The surface can furthermore be formed extremely smoothly or even with structures, wherein a high scratch resistance and a high chemical resistance can be achieved, in particular via powder coatings. By the provided plates or metal spray coatings high mechanical strength and in particular impact resistance can be achieved perpendicular to the main surfaces of the plate. In addition, such plates may have antibacterial properties and, by their structure, have the diffusion resistance to water vapor. By using powder coating is given solvent-free and the absence of volatile organic compounds (VOC Volatile Organic Compounds) makes the plate in all areas where a healthy indoor climate is required, can be used. The electrically conductive plate also provides a shield against electrosmog.

1. a) Bereitstellung einer Grundplatte,
2. b) Aufbringen einer elektrisch leitfähigen Platte und/oder einer Metallspritzschicht auf mindestens eine Seite der Grundplatte und
3. c) Aufbringen einer Lackschicht auf die elektrisch leitfähige Platte und/oder einer Dekorationsschicht auf die Metallspritzschicht, wobei die Dekorationsschicht Dekorationsplatten und/oder gedruckte und/oder lackierte Schichten umfasst und die Metallspritzschicht unterhalb der gedruckten und/oder lackierten Schichten nach dem Spritzen plastisch verformt wird.

The present invention further relates to a method for producing a refractory architectural plate, as has been described in particular in the preceding sections. The manufacturing process comprises the steps:

1. a) providing a base plate,
2. b) applying an electrically conductive plate and / or a metal spray coating on at least one side of the base plate and
3. c) applying a lacquer layer to the electrically conductive plate and / or a decorative layer on the metal sprayed layer, wherein the decorative layer decorative panels and / or printed and / or lacquered layers and the metal spray layer is plastically deformed below the printed and / or painted layers after spraying ,

In addition to plastic deformation to smooth the metal spray layer, it can be ground and / or polished and / or brushed. In particular, the grinding and / or polishing is carried out before the application of a further decorative layer. Alternatively, already by the grinding, polishing or brushing a decorative layer can be formed.

The application of the electrically conductive plate on the base plate can be carried out before the application of the lacquer layer on the electrically conductive plate, so that generally after step b) step c) takes place. Alternatively, the order of the method steps can be changed so that the electrically conductive plate is coated with lacquer before it is applied to the base plate. In this case, step c) follows first, followed by step b). This has, for example, the advantage that the electrically conductive plate is lighter as an independent component and thus can be easily transported through a coating system.

To apply the electrically conductive plate, the baseplate or the metal sprayed layer and / or the electrically conductive plate are preferably coated with an adhesive, in particular fire protection adhesive, and the baseplate or metal sprayed layer and the electrically conductive plate are placed on each other and pressed together. In the same

Way also the decorative panels can be applied.

Alternatively, already in the production of the base plate, a connection of the base plate to the electrically conductive plate can be provided, wherein the electrically conductive plate can optionally be provided with a layer of primer. Even if the electrically conductive plate is connected to it during the manufacture of the base plate, the electrically conductive plate may be coated with lacquer before or after the connection of the electrically conductive plate to the base plate.

BRIEF DESCRIPTION OF THE DRAWING

Figur 1

eine Architekturplatte gemäß der vorliegenden Erfindung in einer perspektivischen Darstellung;

Figur 2

eine weitere Architekturplatte gemäß der vorliegenden Erfindung in einer perspektivischen Darstellung; und in

Figur 3

in den Teilbildern a) bis g) unterschiedliche Plattenaufbauten gemäß der vorliegenden Erfindung.

The figures show in a purely schematic way in

FIG. 1

an architectural plate according to the present invention in a perspective view;

FIG. 2

another architectural plate according to the present invention in a perspective view; and in

FIG. 3

in the panels a) to g) different plate assemblies according to the present invention.

Embodiment

The FIG. 1 shows an embodiment of an inventive architectural plate 1, comprising a base plate 2, on which an electrically conductive plate is arranged in the form of an aluminum plate. On one of the main surfaces, a powder coating layer 4 is applied.

The base plate 2 may in the present embodiment consist of a gypsum fiber board, in which fibers of crushed wood or paper are embedded in a gypsum matrix. On the base plate 2, a thin aluminum plate with a thickness in the range of 0.3 to 0.5 mm is glued over a fire-resistant adhesive (not shown). On the aluminum plate 3, in turn, a powder coating layer 4 is applied. As can be seen from the figure, the main surface on which the powder coating layer is applied extends along the longitudinal side L and the broad side B. The surface with the powder coating layer 4 in the installed state, the visible surface, while at the end faces, the through the latitude and thickness direction and longitudinal and thickness directions are clamped, adjacent architectural plates 1 can connect and the side of the powder coating layer 4 opposite side in a wall or wall construction on or is applied.

In the in FIG. 1 shown embodiment, only one coated side is present, so only a plate 3 on one of the main surfaces. However, it is also possible to provide plates with corresponding surface layers on both main surfaces, that is to say on the opposite main surfaces. Such a plate is in FIG. 2 shown.

In the Fig. 3 In the partial images a) to g), various examples of possible structures of the architectural plate according to the invention are shown. In the Fig. 3a ) is a partial section through an architectural plate similar to that Fig. 1 shown. On the base plate 2, an electric conductive plate 3, for example, a metal plate, is arranged. On the metal plate 3, a wet paint 4 'is provided.

In the embodiment of the Fig. 3b ) is provided on the base plate 2, a metal spray layer 10, on which a metal plate 11 is arranged as a decorative plate.

In the embodiment of the Fig. 3c ) is on the metal plate 11, which is provided as an electrically conductive plate, additionally provided a resist layer 12, so that a structure results from the base plate 2, which comprises a metal spray layer 10, a metal plate 11 and a resist layer 12.

The embodiment of the Fig. 3b ) shows on the base plate 2 a metal sprayed layer 10 which has been smoothed on the outside by being plastically deformed by rolling or blade treatment. In addition, the surface has been smoothed by grinding and polishing, wherein a lacquer layer 12 is provided on this surface-treating metal spray layer.

In the embodiment of the Fig. 3e ) is disposed on the base plate 2, a metal spray layer 10, on which a metal plate 11 is applied. On the metal plate 11, which is provided as an electrically conductive plate, a decorative layer 13 is printed over which a lacquer layer 12, for example, a clearcoat, is arranged.

The embodiment of the Fig. 3f ) comprises a base plate 2, a metal spray layer 10, a printed decorative layer 13 and a lacquer layer 12, which in turn may be formed as a clearcoat. In this embodiment, the metal spray layer 10 is again surface treated by plastic deformation and additional abrasion by grinding and polishing.

The embodiment of the Fig. 3g ) has on the base plate 2 only a metal spray layer 10, which has a decorative layer through a treated surface 14 in the form of a ground, polished or brushed surface, wherein the metal spray layer 10 has been plastically deformed prior to grinding, polishing or brushing.

Although the present invention has been described in detail with reference to the embodiment, it will be understood by those skilled in the art that the invention is not limited to this embodiment, but rather modifications are possible in the manner that exchanged or omitted individual features or a different combination features, as long as the scope of protection of the appended claims is not abandoned. In particular, the present invention includes all combinations of all features presented.

Claims (15)

Architectural panel for planking walls, ceilings, doors and floors a) a base plate (2), b) at least one electrically conductive plate (3) and / or metal spray layer and c) at least one lacquer layer (4) on the electrically conductive plate and / or a decoration layer on the metal spray layer, the decorative layer comprising decorative panels and / or printed and / or lacquered layers and / or surface-treated layers and the metal spray layer underneath the printed and / or painted and / or surface-treated layers has been plastically deformed after spraying,
wherein the base plate, the electrically conductive plate and / or metal spray layer and the lacquer layer (4) and / or decorative layer are arranged in particular in this order. Architectural plate according to claim 1,
characterized in that
the electrically conductive plate (3) is a metal sheet, a foil or a plate of a metal or a metal alloy and / or the decoration plate is a metal plate, plastic plate or a laminate. Architectural plate according to the preceding claim,
characterized in that
the electrically conductive plate (3), the decoration plate and / or the metal sprayed layer are made of aluminum or an aluminum alloy, steel or stainless steel or zinc or zinc alloys, or the electrically conductive plate is a carbon fiber reinforced plate. Architectural plate according to one of the preceding claims,
characterized in that .
the lacquer layer (4) and / or the lacquered layers of the decorative layer are formed by wet lacquers or powder lacquers, in particular UV-curing lacquers. Architectural plate according to one of the preceding claims,
characterized in that
the at least one electrically conductive plate, the decoration plate and / or the metal spray coating is arranged on one or both main surfaces of the base plate, wherein the main surfaces of the base plate are spanned by the longest side edges of the base plate. Architectural plate according to one of the preceding claims,
characterized in that
the electrically conductive plate has a thickness of more than 0.2 mm, in particular more than 0.3 mm or more than 0.5 mm, in particular in the thickness range of 0.25 to 0.75 mm, preferably 0.3 mm to 0, 5 mm and / or the metal spray layer has a thickness of 30 .mu.m to 150 .mu.m, in particular 40 .mu.m to 100 .mu.m. Architectural plate according to one of the preceding claims,
characterized in that
the base plate (2) is a gypsum-bonded plate, cement-bonded plate, silicate-bonded plate, a gypsum fiberboard, a gypsum board, a vermiculite plate or a rigid foam plate. Architectural plate according to one of the preceding claims,
characterized in that
the base plate (2) is fire-retardant or fire-proof impregnated. Architectural plate according to one of the preceding claims,
characterized in that
the architectural plate has at least one adhesive layer, in particular a fire protection adhesive layer, and / or at least one undercoat layer and / or one metal spray layer between the base plate and the electrically conductive plate. Method for producing an architectural plate, in particular according to one of the preceding claims, comprising: a) providing a base plate, b) applying an electrically conductive plate and / or metal sprayed layer at least one side of the base plate and c) applying a lacquer layer to the electrically conductive plate and / or a decorative layer on the metal spray layer, the decorative layer comprising decorative panels and / or printed and / or lacquered layers and / or surface-treated layers, and the metal spray layer underneath the printed and / or lacquered and / or or surface-treated layers is plastically deformed after spraying. Method according to claim 10,
characterized in that
the steps a) to c) are carried out in the stated order or the electrically conductive plate is applied after the application of the lacquer layer on the base plate. Method according to one of claims 10 or 11,
characterized in that
the application of the electrically conductive plate or a decorative plate is done by gluing. Method according to one of claims 10 to 11,
characterized in that
the electrically conductive plate is integrated in the manufacture of the base plate in the shaping and / or in the formation of the composite material. Method according to one of claims 10 to 13,
characterized in that
the metal spray layer is plastically deformed by rolling or drawing with a doctor blade. Method according to one of claims 10 to 14,
characterized in that
grinding the metal sprayed layer after plastic deformation and before applying the printed or painted layers of the decorative layer.

Images