EP2202091A1 - Overlay with effect particles - Google Patents

Overlay with effect particles Download PDF

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Publication number
EP2202091A1
EP2202091A1 EP09180188A EP09180188A EP2202091A1 EP 2202091 A1 EP2202091 A1 EP 2202091A1 EP 09180188 A EP09180188 A EP 09180188A EP 09180188 A EP09180188 A EP 09180188A EP 2202091 A1 EP2202091 A1 EP 2202091A1
Authority
EP
European Patent Office
Prior art keywords
coating system
wood
paper
effect
carrier
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP09180188A
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German (de)
French (fr)
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EP2202091B1 (en
Inventor
Markus Kummeter
Juliane Krüsemann
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BASF SE
Original Assignee
BASF SE
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Publication date
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Publication of EP2202091A1 publication Critical patent/EP2202091A1/en
Application granted granted Critical
Publication of EP2202091B1 publication Critical patent/EP2202091B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C5/00—Processes for producing special ornamental bodies
    • B44C5/04—Ornamental plaques, e.g. decorative panels, decorative veneers
    • B44C5/0469—Ornamental plaques, e.g. decorative panels, decorative veneers comprising a decorative sheet and a core formed by one or more resin impregnated sheets of paper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44F—SPECIAL DESIGNS OR PICTURES
    • B44F1/00—Designs or pictures characterised by special or unusual light effects
    • B44F1/08—Designs or pictures characterised by special or unusual light effects characterised by colour effects
    • B44F1/14—Iridescent effects

Definitions

  • the invention relates to a coating system for the decorative design of surfaces with 2,000teilchen, a method for coating the surface of wood materials, plastics and metals with the coating system, wood materials, plastics and metals, the surface of which are coated with the coating system as well as furnishings and interiors, the like coated wood-based materials, plastics and metals.
  • the surface of objects such as furniture is usually protected by surface treatment. Often, this is also a decorative design of the surfaces intended.
  • One of the best known methods for protecting surfaces is painting, which provides the surfaces with a protective coating. Paints are available in many variants with different gloss, transparency and opacity, color and effects. It is also possible to apply special effect pigments which show changes in the light and angle depending on the color.
  • Paints are usually applied as more or less viscous liquids in a separate process step, for example by rolling, dipping and spraying, and then dried. Paints can also be processed as powder coatings which are applied by means of electrostatic charging and "fired" at elevated temperatures. Painting requires the user in addition to the process step itself specially suitable for painting devices.
  • Object of the present invention is to provide a way to protect and decorate surfaces, which is easy to use and which allows to achieve decorative optical effects with bmwteilchen on the surface to be protected, the effect particles have light and viewing angle-dependent color changes and / or are larger compared to the pigments commonly used.
  • the special precautions and devices associated with the application of paints should be avoided.
  • an easy-to-use option for the decorative design of the surface of wood-based materials with effect particles should be provided.
  • the coating system according to the invention is in the solid state and is also used as such.
  • the problems usually associated with the use of solvents are thereby avoided.
  • the carrier By the carrier, a uniform distribution of the pigments and the resin, which serves as the actual protective layer after application of the coating system, guaranteed, as well as a uniform layer thickness.
  • the pigment concentration is pre-set, problems with settling or agglomeration of the pigments do not occur. This results in a good shelf life of the coating systems of the invention.
  • there are no restrictions on the usable effect particles as long as they are shallow enough.
  • the coating systems according to the invention and the process for coating surfaces show their advantages.
  • the previously used for the production of laminated wood materials devices can be used without modification because the pigments are applied using an overlay paper or decorative paper.
  • the coating system according to the invention is very particularly advantageous if no decorative paper is used, but only an overlay for coating.
  • the coating system according to the invention contains a layered carrier a).
  • a carrier sheet-like structures such as fleece, fabric and paper can be used.
  • paper is used as the layered carrier.
  • the paper is preferably selected from so-called decor paper and / or so-called overlay paper.
  • the terms "decorative paper” and “overlay paper” are known in the art.
  • Decorative paper is usually plain-colored and often pattern-printed paper.
  • the basis weight of the unprinted decorative paper is usually from 15 g / m 2 to 120 g / m 2 , preferably from 50 to 120 g / m 2 .
  • the overlay paper usually undyed paper, which is transparent under pressure and optionally temperature, used.
  • the overlay paper is preferably made of a high quality paper characterized by thermal resilience and high wet strength.
  • This may be a paper made of cellulose, preferably alpha-cellulose, made of 100% softwood.
  • Particularly preferred is a paper made of needled sulphate pulp with a proportion of up to 8% wet strength agent, based on the pulp.
  • the basis weight of the paper may be 15 to 60 g / m 2 , preferably 25 to 40 g / m 2 , most preferably at least 30 g / m 2 .
  • the bulk density of the paper is preferably 0.25 to 0.60 g / cm 3 , more preferably in a range of 0.32 to 0.45 g / cm 3 .
  • the coating system may include one or more resinous composition impregnated layered supports a).
  • the carriers a) can be selected from the same paper or from different papers.
  • the coating system contains as carrier a) at least one decorative paper and / or overlay paper.
  • the coating system according to the invention contains as carrier a) at least one overlay paper.
  • the layered support a) is impregnated according to the invention with an impregnating liquor containing the resin composition.
  • the impregnating liquor contains at least one resin selected from amino resins, isocyanate resins and acrylate resins, with the amino resins being preferred.
  • the amino resins include, for example, melamine-formaldehyde resins, phenol-formaldehyde resins, urea-formaldehyde resins, melamine-urea-formaldehyde resins, Phenol-urea-formaldehyde resins. Preference is given to using melamine-formaldehyde resins, urea-formaldehyde resins and melamine-urea-formaldehyde resins.
  • the impregnation liquor further contains solvents such as water, hardeners and other auxiliaries.
  • the resin composition is understood within the scope of the invention to be the component i) contained in the impregnating liquor.
  • the impregnating liquor optionally contains from 0 to 15% by weight, based on the total weight of the impregnating liquor, of additives selected from rheology modifiers, water retention agents, wetting agents, release agents, dispersants and the like.
  • the coating system contains at least 20% by weight resin composition, preferably from 30 to 70% by weight, more preferably from 40 to 50% by weight resin composition, each based on the weight of the dry coating system.
  • the impregnating liquor can contain up to 45% by weight, based on the impregnating liquor, of effect particles; the impregnating liquor preferably contains 0.1 to 45% by weight, more preferably 0.5 to 15% by weight, very particularly preferably 1 to 5 wt .-%, based on the impregnating liquor, effect particles.
  • Another possibility for introducing the effect particles into the coating system according to the invention is to sprinkle the effect particles onto the still moist, impregnated carrier.
  • the appropriate method for introducing the effect particles into the suitable coating system is selected.
  • the layered carrier can be impregnated by any of the methods known to those skilled in the art, for example, by impregnation, knife coating, spraying and rolling.
  • the amount of resin applied to the carrier is determined by the thickness of the coated layer, the viscosity of the resin composition, the weight of the squeegee, and the like.
  • the resin composition with effect particles can also be applied well by means of raster application.
  • the layered support may be impregnated on one side or on both sides, the support may first be impregnated with resin composition without effects, and after light drying, a resin composition having effect particles may be applied to the support or the effect particles to the dried support be scattered.
  • effect particles are referred to according to the present invention, particles that show light and viewing angle-dependent color changes.
  • the effect particles have a length of at least 0.01 mm, preferably at least 0.1 mm, particularly preferably at least 0.2 mm, very particularly preferably at least 0.5 mm and in particular at least 1 mm. Under length is understood according to the invention the largest dimension of a bmwteilchens in one dimension.
  • the coating system contains effect particles which in two dimensions are at least 0.01 mm, preferably at least 0.1 mm, particularly preferably at least 0.2 mm. most preferably at least 0.5 mm and in particular at least 1 mm long.
  • the effect particles may be selected from the effect pigments and flakes of effect film known to the person skilled in the art as well as mixtures thereof.
  • the effect pigments are usually based on aluminum, bronze, mica, silica, alumina, borosilicate; they may be uncoated or coated with one or more combined metal oxide layers (eg, TiO 2 , Fe 2 O 3 , SiO 2 ).
  • the particle length for these products is 0.01 mm to 0.5 mm.
  • Other effect particles consist of snippets of effect foils.
  • the term "effect film” encompasses plastic and metal foils which exhibit an optical, light-dependent effect, such as light and viewing angle-dependent colors and color gradients, iridescent effects, hologram effects, mirror effects or metallic effects.
  • films are often used from several to very many layers, which are formed of different plastics, for example, from about 100 to 200 layers of alternating polyester and PMMA layers are made, some with other plastic layers, for Example from PBT, LDPE, PETG can be enclosed.
  • the films can be vapor-deposited with metal layers, for example with aluminum.
  • the average particle length is according to the invention 0.01 to 30 mm, preferably 0.05 to 25 mm and particularly preferably 0.1 to 10 mm.
  • the coating system of the invention contains at least 0.1 wt .-%, preferably 0.1 to 45 wt .-%, particularly preferably 0.5 to 15 wt .-% and most preferably 1 to 5 wt .-% effect particles, each based on the dry coating system.
  • the coating system can consist of one or more layered carriers impregnated with a resin composition a), at least one or more of the carrier effect particles having been introduced.
  • the effect particles can also be introduced into or onto all the carriers a) contained in the coating system.
  • effect particles are introduced into the carriers, which are visible after application of the coating system to a surface.
  • Particularly suitable for this purpose are the upper transparent overlay layers and the first carrier made of decorative paper, each viewed from above.
  • the simplest solid coating system according to the invention consists of an overlay paper as carrier a) which have been impregnated with resin composition and introduced into or onto the effect particle.
  • the coating system according to the invention may also consist of a decorative paper impregnated with a resin composition into which effect particles have been introduced, for example by impregnation or by scattering.
  • Another object of the present invention is the use of the coating system described above for coating the surfaces of wood materials, plastics and metals. Particularly preferred is the use of the coating system for coating wood-based material surfaces.
  • the present invention relates to a method for coating the surface of wood-based materials, plastics and metals by applying the coating system according to the invention described above to the surface of the wood materials, plastics and metals and the subsequent compression of the wood materials, plastics and metals with the coating system at temperatures of 120 to 300 ° C, preferably from 140 to 210 ° C and pressures of 2 to 60 bar, preferably from 20 to 30 bar.
  • the thickness of the resulting overlay layer is usually 50 to 70 micrometers.
  • wood-based materials coated with a coating system according to the invention are preferred.
  • Medium Density Fiber (MDF), Oriented Strand Board (OSB) and selected Oriented Strand Board (OSB) boards selected, coated wood materials.
  • MDF Medium Density Fiber
  • OSB Oriented Strand Board
  • OSB Oriented Strand Board
  • HDF, MDF, chip and OSB boards made of bleached wood fibers and / or wood chips are used therefor.
  • the production of wood materials from bleached wood fibers is, for example, in WO 2008/129048 described.
  • HDF, MDF, chipboard and OSB boards are used.
  • the wood fibers and / or wood chips used for board production, the binder used or both may be colored. It is particularly preferred if the HDF, MDF, chipboard and OSB boards are dyed through.
  • the dyed wood materials can according to the EP 155 61 96 getting produced.
  • the wood fibers and / or wood chips used can be bleached or unbleached.
  • HDF and MDF boards which are produced from bleached and / or dyed wood fibers and whose surface is coated with a coating system which contains at least one overlay paper as support a) a coating system which contains as carrier a) in addition to at least one overlay paper no intransparent carrier.
  • HDF and MDF boards are obtained which have a transparent surface coating through which the structure of the HDF and MDF boards shines, so that any coloring or bleaching of the HDF and MDF boards is still visible.
  • colored HDF and MDF boards by their uniform coloring, form an excellent background for the effect particles, which are particularly effective in this way.
  • Chipboard and OSB boards have a rather restlessly patterned surface due to their production, which creates a relatively turbulent background for the effect particles. Therefore, according to the invention, chipboards and OSB boards are preferably coated with a coating system as described above, which contains at least one decorative paper as support a).
  • the decorative paper covers the restless patterning of the chipboards and OSB boards so that the effect particles contained in the coating system are clearly visible.
  • Another object of the present invention are furnishings and interior fittings that contain the inventively coated wood materials, plastics and / or metals.
  • the overlay impregnated with the effect pigment-containing resin composition overlay was placed after drying on a black through-dyed MDF board and pressed at 180 ° C and 25 bar for 40 sec.
  • the layer thickness of the pressed overlay was about 60 microns.
  • An overlay paper of unfilled alpha-cellulose at 25 g / m 2 was coated with the melamine resin liquor of Example 1, impregnated by impregnation and subsequent removal of the excess resin by 2 squeegees.
  • the overlay paper was under tension at 120 ° C for 175 s briefly dried and sprinkled out of effect foil snippets with a length of 0.1 mm to about 0.5 mm.
  • the overlay paper impregnated with the melamine resin liquor and sprinkled with effect film chips was placed on a black-dyed MDF board and pressed at 180 ° C. and 25 bar for 40 seconds.
  • the result was a smooth, glossy black surface, which highlights the glossy foil snippets with a slightly opalescent effect.
  • the layer thickness of the pressed overlay was about 60 microns.

Abstract

The solid coating system comprises a layered carrier impregnated with a resin-composition, and 0.1 wt.% of effect particles with a length of 0.01 mm, related to the dried coating system. The effect particles are effective pigments and/or snippet of effective film. The layered carrier is decorative paper and/or overlay-paper. Independent claims are included for: (1) a method for coating surface of wood material, plastic and metal through applying a coating system; and (2) wood material, plastic and metal such as high density fiber-, medium density fiber-, sliver- and oriented strand board plate.

Description

Die Erfindung betrifft ein Beschichtungssystem zur dekorativen Gestaltung von Oberflächen mit Effektteilchen, ein Verfahren zur Beschichtung der Oberfläche von Holzwerkstoffen, Kunststoffen und Metallen mit dem Beschichtungssystem, Holzwerkstoffe, Kunstwerkstoffe und Metalle, deren Oberfläche mit dem Beschichtungssystem beschichtet sind sowie Einrichtungsgegenstände und Innenausbauten, die die derart beschichteten Holzwerkstoffe, Kunststoffe und Metalle enthalten.The invention relates to a coating system for the decorative design of surfaces with Effektteilchen, a method for coating the surface of wood materials, plastics and metals with the coating system, wood materials, plastics and metals, the surface of which are coated with the coating system as well as furnishings and interiors, the like coated wood-based materials, plastics and metals.

Die Oberfläche von Gegenständen wie Möbeln wird üblicherweise durch Oberflächenbehandlung geschützt. Häufig wird damit auch eine dekorative Gestaltung der Oberflächen bezweckt. Eine der bekanntesten Methoden zum Schutz von Oberflächen ist das Lackieren, durch das die Oberflächen mit einer Schutzschicht versehen werden. Lacke gibt es in vielen Varianten mit unterschiedlichem Glanzverhalten, Transparenz und Deckkraft, Farbigkeit und Effekten. Es können auch spezielle Effektpigmente aufgebracht werden, die licht- und blickwinkelabhängige Farbänderungen zeigen.The surface of objects such as furniture is usually protected by surface treatment. Often, this is also a decorative design of the surfaces intended. One of the best known methods for protecting surfaces is painting, which provides the surfaces with a protective coating. Paints are available in many variants with different gloss, transparency and opacity, color and effects. It is also possible to apply special effect pigments which show changes in the light and angle depending on the color.

Lacke werden üblicherweise als mehr oder weniger viskose Flüssigkeiten in einem eigenen Verfahrensschritt, beispielsweise durch Walzen, Tauchen und Sprühen, aufgetragen und anschließend getrocknet. Lacke können auch als Pulverlacke verarbeitet werden, die mit Hilfe von elektrostatischer Aufladung aufgetragen und bei erhöhten Temperaturen "gebrannt" werden. Lackieren verlangt beim Anwender neben dem Verfahrensschritt selbst eigens für das Lackieren geeignete Vorrichtungen.Paints are usually applied as more or less viscous liquids in a separate process step, for example by rolling, dipping and spraying, and then dried. Paints can also be processed as powder coatings which are applied by means of electrostatic charging and "fired" at elevated temperatures. Painting requires the user in addition to the process step itself specially suitable for painting devices.

Eine andere Möglichkeit zum Schutz und zur dekorativen Gestaltung von Oberflächen ist aus der Laminatherstellung bekannt. Hierbei wird auf einen harten Kern aus HDF oder MDF ein mit Harz getränktes sogenanntes Overlay-Papier heiß verpresst. Es entsteht eine transparente, harte und strapazierfähige Oberfläche. Um den darunter liegenden Kern aus HDF oder MDF abzudecken, befindet sich üblicherweise unter dem Overlay-Papier ein ebenfalls mit Harz getränktes Dekorpapier, das mit einem Holzmaserung oder Fliesen etc. imitierenden Muster bedruckt ist. Der optische Eindruck des Laminats wird somit von dem Muster des Dekorpapiers geprägt. Die erzielbaren dekorativen Effekte sind somit entweder durch den Kern aus HDF bzw. MDF oder das Dekorpapier bestimmt und sind durch die Möglichkeiten, das Dekor mit Mustern zu bedrucken, begrenzt. Besondere visuelle Effekte, die durch spezielle Effektteilchen hervorgerufen werden, können mit den Dekorpapieren nur schlecht realisiert werden, da diese speziellen Effektteilchen mit den für das Bedrucken des Dekorpapiers verwendeten Techniken Tiefdruck und Tintenstrahldruck nicht oder nur schwierig aufgebracht werden können.Another possibility for the protection and decorative design of surfaces is known from the laminate production. Here, a resin-impregnated so-called overlay paper is hot-pressed onto a hard core of HDF or MDF. The result is a transparent, hard and durable surface. To cover the underlying core of HDF or MDF, usually under the overlay paper is also a resin-soaked decorative paper, which is imprinted with a wood grain or tile imitation pattern. The visual impression of the laminate is thus shaped by the pattern of the decorative paper. The achievable decorative effects are thus determined either by the core of HDF or MDF or decorative paper and are limited by the possibilities of printing the pattern with patterns. Special visual effects, which are caused by special effect particles, can only be realized poorly with the decorative papers, since these special effect particles are used with those used for printing on the decorative paper Gravure printing and inkjet printing techniques are difficult or impossible to apply.

Aufgabe der vorliegenden Erfindung ist, eine Möglichkeit zum Schutz und zur dekorativen Gestaltung von Oberflächen bereitzustellen, die einfach anzuwenden ist und die es erlaubt, dekorative optische Effekte mit Effektteilchen auf der zu schützenden Oberfläche zu erzielen, wobei die Effektteilchen licht- und blickwinkelabhängige Farbänderungen aufweisen und/oder im Vergleich zu den üblicherweise verwendeten Pigmenten größer sind. Die besonderen Vorkehrungen und Vorrichtungen, die mit dem Auftrag von Lacken verbunden sind, sollen vermieden werden. Insbesondere soll eine für den Anwender einfach zu handhabende Möglichkeit zur dekorativen Gestaltung der Oberfläche von Holzwerkstoffen mit Effektteilchen bereitgestellt werden.Object of the present invention is to provide a way to protect and decorate surfaces, which is easy to use and which allows to achieve decorative optical effects with Effektteilchen on the surface to be protected, the effect particles have light and viewing angle-dependent color changes and / or are larger compared to the pigments commonly used. The special precautions and devices associated with the application of paints should be avoided. In particular, an easy-to-use option for the decorative design of the surface of wood-based materials with effect particles should be provided.

Die Aufgabe wird erfindungsgemäß gelöst durch ein festes Beschichtungssystem zur dekorativen Gestaltung von Oberflächen mit Effektteilchen enthaltend

  1. a) mindestens einen mit einer Harz-Zusammensetzung imprägnierten, schichtförmigen Träger, und
  2. b) mindestens 0,1 Gew.-% Effektteilchen mit einer Länge von mindestens 0,01 mm, bezogen auf das trockene Beschichtungssystem,
sowie durch ein Verfahren zur Beschichtung der Oberflächen von Holzwerkstoffen, Kunststoffen und Metallen mit diesem Beschichtungssystem.The object is achieved by a solid coating system for the decorative design of surfaces containing effect particles
  1. a) at least one impregnated with a resin composition, layered carrier, and
  2. b) at least 0.1% by weight of effect particles having a length of at least 0.01 mm, based on the dry coating system,
as well as a process for coating the surfaces of wood-based materials, plastics and metals with this coating system.

Das erfindungsgemäße Beschichtungssystem liegt im festen Zustand vor und wird auch als solches eingesetzt. Die üblicherweise mit der Verwendung von Lösungsmitteln einhergehenden Probleme werden dadurch vermieden. Durch den Träger ist eine gleichmäßige Verteilung der Pigmente und des Harzes, das nach Aufbringen des Beschichtungssystems als eigentliche Schutzschicht dient, gewährleistet, ebenso wie eine gleichmäßige Schichtdicke. Die Pigmentkonzentration ist voreingestellt, Probleme mit dem Absetzen oder der Agglomeration der Pigmente treten nicht auf. Daraus folgt eine gute Lagerfähigkeit der erfindungsgemäßen Beschichtungssysteme. Darüber hinaus gibt es hinsichtlich der verwendbaren Effektteilchen keine Einschränkungen, solange diese flach genug sind. So können auch Effektteilchen eingesetzt werden, die in Beschichtungssystemen üblicherweise keine Verwendung finden wie Schnipsel von Effektfolien.The coating system according to the invention is in the solid state and is also used as such. The problems usually associated with the use of solvents are thereby avoided. By the carrier, a uniform distribution of the pigments and the resin, which serves as the actual protective layer after application of the coating system, guaranteed, as well as a uniform layer thickness. The pigment concentration is pre-set, problems with settling or agglomeration of the pigments do not occur. This results in a good shelf life of the coating systems of the invention. In addition, there are no restrictions on the usable effect particles as long as they are shallow enough. Thus, it is also possible to use effect particles which are conventionally not used in coating systems, such as chips of effect foils.

Insbesondere bei der Herstellung von Holzwerkstoffen mit dekorativen Oberflächen zeigen die erfindungsgemäßen Beschichtungssysteme sowie das Verfahren zur Beschichtung von Oberflächen seine Vorzüge. Die bisher zur Herstellung von laminierten Holzwerkstoffen benutzten Vorrichtungen können ohne Änderung weiter verwendet werden, da die Pigmente mit Hilfe eines Overlay-Papiers oder eines Dekorpapiers aufgebracht werden. Ganz besonders vorteilhaft ist das erfindungsgemäße Beschichtungssystem, wenn kein Dekorpapier, sondern lediglich ein Overlay zur Beschichtung eingesetzt wird.In particular in the production of wood-based materials with decorative surfaces, the coating systems according to the invention and the process for coating surfaces show their advantages. The previously used for the production of laminated wood materials devices can be used without modification because the pigments are applied using an overlay paper or decorative paper. The coating system according to the invention is very particularly advantageous if no decorative paper is used, but only an overlay for coating.

Das erfindungsgemäße Beschichtungssystem enthält einen schichtförmigen Träger a). Als Träger können flächenförmige Gebilde wie Vlies, Gewebe und Papier eingesetzt werden. Erfindungsgemäß bevorzugt wird als schichtförmiger Träger Papier verwendet. Das Papier wird vorzugsweise aus so genanntem Dekorpapier und/oder so genanntem Overlay-Papier ausgewählt. Die Begriffe "Dekorpapier" und "Overlay-Papier" sind dem Fachmann bekannt. Bei Dekorpapier handelt es sich üblicherweise um unifarbenes und häufig mit einem Muster bedrucktes Papier. Das Flächengewicht des unbedruckten Dekorpapiers liegt üblicherweise bei 15 g/m2 bis 120 g/m2, vorzugsweise bei 50 bis 120 g/m2.The coating system according to the invention contains a layered carrier a). As a carrier sheet-like structures such as fleece, fabric and paper can be used. According to the invention, paper is used as the layered carrier. The paper is preferably selected from so-called decor paper and / or so-called overlay paper. The terms "decorative paper" and "overlay paper" are known in the art. Decorative paper is usually plain-colored and often pattern-printed paper. The basis weight of the unprinted decorative paper is usually from 15 g / m 2 to 120 g / m 2 , preferably from 50 to 120 g / m 2 .

Als Overlay-Papier wird üblicherweise ungefärbtes Papier, das unter Druck und gegebenenfalls Temperatureinwirkung transparent wird, eingesetzt. Das Overlaypapier wird bevorzugt aus einem qualitativ hochwertigen Papier hergestellt, das sich durch thermische Belastbarkeit und hohe Nassfestigkeit auszeichnet. Dies kann ein Papier aus Zellulose, bevorzugt alpha-Zellulose, hergestellt aus 100 % Nadelholz, sein. Besonders bevorzugt ist ein Papier aus Nadelsulfatzellstoff mit einem Anteil von bis zu 8 % Nassfestmittel, bezogen auf den Zellstoff. Das Flächengewicht des Papiers kann 15 bis 60 g/m2 betragen, bevorzugt 25 bis 40 g/m2, ganz besonders bevorzugt wenigstens 30 g/m2. Die Rohdichte des Papiers liegt bevorzugt bei 0,25 bis 0,60 g/cm3, besonders bevorzugt in einem Bereich von 0,32 bis 0,45 g/cm3.As an overlay paper usually undyed paper, which is transparent under pressure and optionally temperature, used. The overlay paper is preferably made of a high quality paper characterized by thermal resilience and high wet strength. This may be a paper made of cellulose, preferably alpha-cellulose, made of 100% softwood. Particularly preferred is a paper made of needled sulphate pulp with a proportion of up to 8% wet strength agent, based on the pulp. The basis weight of the paper may be 15 to 60 g / m 2 , preferably 25 to 40 g / m 2 , most preferably at least 30 g / m 2 . The bulk density of the paper is preferably 0.25 to 0.60 g / cm 3 , more preferably in a range of 0.32 to 0.45 g / cm 3 .

Das Beschichtungssystem kann einen oder mehrere mit einer Harz-Zusammensetzung imprägnierte schichtförmige Träger a) enthalten. Die Träger a) können dabei aus dem gleichen Papier oder aus unterschiedlichen Papieren gewählt werden.The coating system may include one or more resinous composition impregnated layered supports a). The carriers a) can be selected from the same paper or from different papers.

Gemäß einer bevorzugten Ausführungsform enthält das Beschichtungssystem als Träger a) mindestens ein Dekorpapier und/oder Overlay-Papier. Ganz besonders bevorzugt enthält das erfindungsgemäße Beschichtungssystem als Träger a) mindestens ein Overlay-Papier. Ebenfalls besonders bevorzugt ist die Ausführungsform, in der das Beschichtungssystem als Träger a) nur Overlay-Papier enthält.According to a preferred embodiment, the coating system contains as carrier a) at least one decorative paper and / or overlay paper. With very particular preference the coating system according to the invention contains as carrier a) at least one overlay paper. Also particularly preferred is the embodiment in which the coating system contains as carrier a) only overlay paper.

Der schichtförmige Träger a) wird erfindungsgemäß mit einer Imprägnierflotte, die die Harz-Zusammensetzung enthält, imprägniert. Die Imprägnierflotte enthält mindestens ein Harz ausgewählt aus Aminoharzen, Isocyanat-Harzen und Acrylatharzen, wobei die Aminoharze bevorzugt sind. Unter die Aminoharze zählen beispielsweise Melamin-Formaldehyd-Harze, Phenol-Formaldehyd-Harze, Harnstoff-Formaldehyd-Harze, Melamin-Harnstoff-Formaldehyd-Harze, Phenol-Harnstoff-Formaldehyd-Harze. Bevorzugt werden Melamin-Formaldehyd-Harze, Harnstoff-Formaldehyd-Harze und Melamin-Harnstoff-Formaldehyd-Harze eingesetzt.The layered support a) is impregnated according to the invention with an impregnating liquor containing the resin composition. The impregnating liquor contains at least one resin selected from amino resins, isocyanate resins and acrylate resins, with the amino resins being preferred. The amino resins include, for example, melamine-formaldehyde resins, phenol-formaldehyde resins, urea-formaldehyde resins, melamine-urea-formaldehyde resins, Phenol-urea-formaldehyde resins. Preference is given to using melamine-formaldehyde resins, urea-formaldehyde resins and melamine-urea-formaldehyde resins.

Die Imprägnierflotte enthält weiterhin Lösungsmittel wie Wasser, Härter und sonstige Hilfsmittel. Als Harz-Zusammensetzung wird im Rahmen der Erfindung die in der Imprägnierflotte enthaltene Komponente i) verstanden.The impregnation liquor further contains solvents such as water, hardeners and other auxiliaries. The resin composition is understood within the scope of the invention to be the component i) contained in the impregnating liquor.

Die Imprägnierflotte enthält erfindungsgemäß

  1. i) 5 bis 70 Gew.-% Harz-Zusammensetzung,
  2. ii) 70 bis 30 Gew.-% Lösungsmittel,
  3. iii) 0 bis 45 Gew.-%, bevorzugt 0,1 bis 45 Gew.-% Effektteilchen und
  4. iv) 0 bis 15 Gew.-% Zusatzstoffe,
jeweils bezogen auf das Gesamtgewicht der ImprägnierflotteThe impregnating liquor contains according to the invention
  1. i) 5 to 70% by weight of resin composition,
  2. ii) 70 to 30% by weight of solvent,
  3. iii) 0 to 45 wt .-%, preferably 0.1 to 45 wt .-% effect particles and
  4. iv) 0 to 15% by weight of additives,
in each case based on the total weight of the impregnating liquor

Die Imprägnierflotte enthält gegebenenfalls 0 bis 15 Gew.-%, bezogen auf das Gesamtgewicht der Imprägnierflotte, Zusatzstoffe, die ausgewählt sind aus Rheologiemodifizierern, Wasserrückhaltemittel, Benetzungsmittel, Trennmittel, Dispergiermittel und ähnlichem.The impregnating liquor optionally contains from 0 to 15% by weight, based on the total weight of the impregnating liquor, of additives selected from rheology modifiers, water retention agents, wetting agents, release agents, dispersants and the like.

Das Beschichtungssystem enthält mindestens 20 Gew.-% Harz-Zusammensetzung, bevorzugt 30 bis 70 Gew.-%, besonders bevorzugt 40 bis 50 Gew.-% Harz-Zusammensetzung, jeweils bezogen auf das Gewicht des trockenen Beschichtungssystems.The coating system contains at least 20% by weight resin composition, preferably from 30 to 70% by weight, more preferably from 40 to 50% by weight resin composition, each based on the weight of the dry coating system.

Die Imprägnierung des schichtförmigen Trägers a) mit der Harz-Zusammensetzung stellt eine wichtige Möglichkeit dar, die Effektteilchen in das erfindungsgemäße Beschichtungssystem einzuführen. Daher kann die Imprägnierflotte bis zu 45 Gew.-%, bezogen auf die Imprägnierflotte, an Effektteilchen enthalten, bevorzugt enthält die Imprägnierflotte 0,1 bis 45 Gew.-%, besonders bevorzugt 0,5 bis 15 Gew.-%, ganz besonders bevorzugt 1 bis 5 Gew.-%, bezogen auf die Imprägnierflotte, Effektteilchen.The impregnation of the layered support a) with the resin composition is an important possibility to introduce the effect particles into the coating system according to the invention. Therefore, the impregnating liquor can contain up to 45% by weight, based on the impregnating liquor, of effect particles; the impregnating liquor preferably contains 0.1 to 45% by weight, more preferably 0.5 to 15% by weight, very particularly preferably 1 to 5 wt .-%, based on the impregnating liquor, effect particles.

Eine weitere Möglichkeit zum Einführen der Effektteilchen in das erfindungsgemäße Beschichtungssystem besteht darin, die Effektteilchen auf den noch feuchten, imprägnierten Träger aufzustreuen.Another possibility for introducing the effect particles into the coating system according to the invention is to sprinkle the effect particles onto the still moist, impregnated carrier.

Abhängig von den gewünschten optischen Effekten wird die jeweils geeignete Methode zum Einführen der Effektteilchen in das geeignete Beschichtungssystem ausgewählt.Depending on the desired optical effects, the appropriate method for introducing the effect particles into the suitable coating system is selected.

Der schichtförmige Träger kann nach allen dem Fachmann bekannten Methoden imprägniert werden, beispielsweise durch Tränken, Aufrakeln, Sprühen und Aufwalzen. Die auf den Träger aufgebrachte Harzmenge wird durch die Dicke der aufgetragenen Schicht, der Viskosität der Harz-Zusammensetzung, Gewicht der Rakel und ähnliches bestimmt. Im technischen Maßstab lässt sich die Harz-Zusammensetzung mit Effektteilchen auch gut mittels Rasterauftrag aufbringen.The layered carrier can be impregnated by any of the methods known to those skilled in the art, for example, by impregnation, knife coating, spraying and rolling. The amount of resin applied to the carrier is determined by the thickness of the coated layer, the viscosity of the resin composition, the weight of the squeegee, and the like. On an industrial scale, the resin composition with effect particles can also be applied well by means of raster application.

Der schichtförmige Träger kann auf einer Seite oder auf beiden Seiten imprägniert werden, der Träger kann zunächst mit Harz-Zusammensetzung ohne Effekte imprägniert werden, und nach leichtem Antrocknen kann eine Harz-Zusammensetzung mit Effektteilchen auf den Träger aufgebracht werden oder die Effektteilchen auf den angetrockneten Träger aufgestreut werden.The layered support may be impregnated on one side or on both sides, the support may first be impregnated with resin composition without effects, and after light drying, a resin composition having effect particles may be applied to the support or the effect particles to the dried support be scattered.

Als Effektteilchen werden gemäß der vorliegenden Erfindung Partikel bezeichnet, die licht- und blickwinkelabhängige Farbänderungen zeigen. Die Effektteilchen haben eine Länge von mindestens 0,01 mm, bevorzugt mindestens 0,1 mm, besonders bevorzugt mindestens 0,2 mm, ganz besonders bevorzugt mindestens 0,5 mm und insbesondere mindestens 1 mm. Unter Länge wird erfindungsgemäß die größte Ausdehnung eines Effektteilchens in einer Dimension verstanden. Insbesondere bevorzugt enthält das Beschichtungssystem Effektteilchen, die in zwei Dimensionen mindestens 0,01 mm, bevorzugt mindestens 0,1 mm, besonders bevorzugt mindestens 0,2 mm. ganz besonders bevorzugt mindestens 0,5 mm und insbesondere mindestens 1 mm lang sind.As effect particles are referred to according to the present invention, particles that show light and viewing angle-dependent color changes. The effect particles have a length of at least 0.01 mm, preferably at least 0.1 mm, particularly preferably at least 0.2 mm, very particularly preferably at least 0.5 mm and in particular at least 1 mm. Under length is understood according to the invention the largest dimension of a Effektteilchens in one dimension. Particularly preferably, the coating system contains effect particles which in two dimensions are at least 0.01 mm, preferably at least 0.1 mm, particularly preferably at least 0.2 mm. most preferably at least 0.5 mm and in particular at least 1 mm long.

Die Effektteilchen können aus den dem Fachmann bekannten Effektpigmenten und Schnipseln aus Effektfolie sowie Mischungen davon gewählt sein. Die Effektpigmente basieren üblicherweise auf Aluminium, Bronze, Glimmer, Siliziumdioxid, Aluminiumdioxid, Borosilikat; sie können unbeschichtet oder mit einer oder mehreren kombinierten Metalloxidschichten (zum Beispiel TiO2, Fe2O3, SiO2) beschichtet vorliegen. Die Teilchenlänge liegt bei diesen Produkten bei 0,01 mm bis 0,5 mm. Andere Effektteilchen bestehen aus Schnipsel von Effektfolien. Erfindungsgemäß werden von dem Begriff Effektfolie Kunststoff- und Metallfolien umfasst, die einen optischen, lichtabhängigen Effekt zeigen wie licht- und blickwinkelabhängige Farben und Farbverläufe, irisierende Effekte, Hologrammeffekte, Spiegeleffekte oder Metalliceffekte. Um Kunststofffolien mit optischem Effekt herzustellen, werden häufig Folien aus mehreren bis sehr vielen Lagen verwendet, die aus unterschiedlichen Kunststoffen gebildet sind, beispielsweise aus ca. 100 bis 200 Lagen alternierender Polyester- und PMMA-Schichten bestehen, die zum Teil mit anderen Kunststofflagen, zum Beispiel aus PBT, LDPE, PETG eingefasst sein können. Um Spiegel-, Metallic- oder Hologrammeffekte hervorzurufen, können die Folien mit Metallschichten bedampft werden, beispielsweise mit Aluminium. Bei den Effektfolienschnipseln liegt die durchschnittliche Teilchenlänge erfindungsgemäß bei 0,01 bis 30 mm, bevorzugt bei 0,05 bis 25 mm und besonders bevorzugt bei 0,1 bis 10 mm. Das erfindungsgemäße Beschichtungssystem enthält mindestens 0,1 Gew.-%, bevorzugt 0,1 bis 45 Gew.-%, besonders bevorzugt 0,5 bis 15 Gew.-% und ganz besonders bevorzugt 1 bis 5 Gew.-% Effektteilchen, jeweils bezogen auf das trockene Beschichtungssystem.The effect particles may be selected from the effect pigments and flakes of effect film known to the person skilled in the art as well as mixtures thereof. The effect pigments are usually based on aluminum, bronze, mica, silica, alumina, borosilicate; they may be uncoated or coated with one or more combined metal oxide layers (eg, TiO 2 , Fe 2 O 3 , SiO 2 ). The particle length for these products is 0.01 mm to 0.5 mm. Other effect particles consist of snippets of effect foils. According to the invention, the term "effect film" encompasses plastic and metal foils which exhibit an optical, light-dependent effect, such as light and viewing angle-dependent colors and color gradients, iridescent effects, hologram effects, mirror effects or metallic effects. In order to produce plastic films with an optical effect, films are often used from several to very many layers, which are formed of different plastics, for example, from about 100 to 200 layers of alternating polyester and PMMA layers are made, some with other plastic layers, for Example from PBT, LDPE, PETG can be enclosed. To cause mirror, metallic or hologram effects, the films can be vapor-deposited with metal layers, for example with aluminum. In the case of the effect film chips, the average particle length is according to the invention 0.01 to 30 mm, preferably 0.05 to 25 mm and particularly preferably 0.1 to 10 mm. The coating system of the invention contains at least 0.1 wt .-%, preferably 0.1 to 45 wt .-%, particularly preferably 0.5 to 15 wt .-% and most preferably 1 to 5 wt .-% effect particles, each based on the dry coating system.

Erfindungsgemäß kann das Beschichtungssystem aus einem oder mehreren, mit einer Harz-Zusammensetzung imprägnierten schichtförmigen Trägern a) bestehen, wobei mindestens in bzw. auf einen der Träger Effektteilchen eingeführt wurden. Die Effektteilchen können jedoch auch in bzw. auf alle im Beschichtungssystem enthaltenen Träger a) eingeführt werden. Vorzugsweise werden in die Träger Effektteilchen eingeführt, die nach Aufbringen des Beschichtungssystems auf eine Oberfläche sichtbar sind. Dafür eignen sich insbesondere die oberen transparenten Overlay-Schichten sowie der erste Träger aus Dekorpapier, jeweils von oben gesehen. Das einfachste feste Beschichtungssystem gemäß der Erfindung besteht aus einem Overlay-Papier als Träger a), das mit Harz-Zusammensetzung imprägniert und in bzw. auf das Effektteilchen eingeführt wurden. Das erfindungsgemäße Beschichtungssystem kann jedoch auch in einem mit einer Harz-Zusammensetzung imprägnierten Dekorpapier bestehen, in das Effektteilchen beispielsweise mit der Imprägnierung oder durch Aufstreuen eingeführt wurden.According to the invention, the coating system can consist of one or more layered carriers impregnated with a resin composition a), at least one or more of the carrier effect particles having been introduced. However, the effect particles can also be introduced into or onto all the carriers a) contained in the coating system. Preferably, effect particles are introduced into the carriers, which are visible after application of the coating system to a surface. Particularly suitable for this purpose are the upper transparent overlay layers and the first carrier made of decorative paper, each viewed from above. The simplest solid coating system according to the invention consists of an overlay paper as carrier a) which have been impregnated with resin composition and introduced into or onto the effect particle. However, the coating system according to the invention may also consist of a decorative paper impregnated with a resin composition into which effect particles have been introduced, for example by impregnation or by scattering.

Weiterer Gegenstand der vorliegenden Erfindung ist die Verwendung des vorstehend beschriebenen Beschichtungssystems zur Beschichtung der Oberflächen von Holzwerkstoffen, Kunststoffen und Metallen. Besonders bevorzugt ist dabei die Verwendung des Beschichtungssystems zur Beschichtung von Holzwerkstoffoberflächen.Another object of the present invention is the use of the coating system described above for coating the surfaces of wood materials, plastics and metals. Particularly preferred is the use of the coating system for coating wood-based material surfaces.

Weiterhin betrifft die vorliegende Erfindung ein Verfahren zur Beschichtung der Oberfläche von Holzwerkstoffen, Kunststoffen und Metallen durch Auflegen des vorstehend beschriebenen erfindungsgemäßen Beschichtungssystems auf die Oberfläche der Holzwerkstoffe, Kunststoffe und Metalle und dem anschließenden Verpressen der Holzwerkstoffe, Kunststoffe und Metalle mit dem Beschichtungssystem bei Temperaturen von 120 bis 300 °C, bevorzugt von 140 bis 210°C und Drücken von 2 bis 60 bar, bevorzugt von 20 bis 30 bar. Die Dicke der resultierenden Overlay-Schicht beträgt üblicherweise 50 bis 70 Mikrometer.Furthermore, the present invention relates to a method for coating the surface of wood-based materials, plastics and metals by applying the coating system according to the invention described above to the surface of the wood materials, plastics and metals and the subsequent compression of the wood materials, plastics and metals with the coating system at temperatures of 120 to 300 ° C, preferably from 140 to 210 ° C and pressures of 2 to 60 bar, preferably from 20 to 30 bar. The thickness of the resulting overlay layer is usually 50 to 70 micrometers.

Ebenso sind die Holzwerkstoffe, Kunstwerkstoffe und Metalle, deren Oberfläche mindestens teilweise mit einem erfindungsgemäßen, vorstehend beschriebenen Beschichtungssystem, beschichtet ist, Gegenstand der Erfindung.Likewise, the wood materials, art materials and metals whose surface is at least partially coated with a coating system according to the invention, described above, the subject of the invention.

Bevorzugt sind erfindungsgemäß mit einem erfindungsgemäßen Beschichtungssystem beschichtete Holzwerkstoffe, insbesondere aus der Gruppe HDF (High Densitiy Fiber)-, MDF (Medium Density Fiber)-, Span- und OSB (Oriented Strand Board)-Platten ausgewählte, beschichtete Holzwerkstoffe.According to the invention, wood-based materials coated with a coating system according to the invention, in particular from the group HDF (High Density Fiber), are preferred. Medium Density Fiber (MDF), Oriented Strand Board (OSB) and selected Oriented Strand Board (OSB) boards selected, coated wood materials.

Gemäß einer besonders bevorzugten Ausführungsform der vorliegenden Erfindung werden dafür HDF-, MDF-, Span- und OSB-Platten, die aus gebleichten Holzfasern und/oder Holzspänen hergestellt sind, verwendet. Die Herstellung von Holzwerkstoffen aus gebleichten Holzfasern ist beispielsweise in WO 2008/129048 beschrieben.In accordance with a particularly preferred embodiment of the present invention, HDF, MDF, chip and OSB boards made of bleached wood fibers and / or wood chips are used therefor. The production of wood materials from bleached wood fibers is, for example, in WO 2008/129048 described.

Gemäß einer ebenso bevorzugten Ausführungsform werden gefärbte HDF-, MDF-, Span- und OSB-Platten eingesetzt. Dabei können die zur Plattenherstellung eingesetzten Holzfasern und/oder Holzspäne, das verwendete Bindemittel oder beides gefärbt sein. Besonders bevorzugt ist, wenn die HDF-, MDF-, Span- und OSB-Platten durchgefärbt sind. Die gefärbten Holzwerkstoffe können gemäß der EP 155 61 96 hergestellt werden. Die dabei verwendeten Holzfasern und/oder Holzspäne können gebleicht oder ungebleicht eingesetzt werden.In an equally preferred embodiment, colored HDF, MDF, chipboard and OSB boards are used. In this case, the wood fibers and / or wood chips used for board production, the binder used or both may be colored. It is particularly preferred if the HDF, MDF, chipboard and OSB boards are dyed through. The dyed wood materials can according to the EP 155 61 96 getting produced. The wood fibers and / or wood chips used can be bleached or unbleached.

Ganz besonders bevorzugt sind gemäß der vorliegenden Ausführungsform HDF- und MDF-Platten, die aus gebleichten und/oder gefärbten Holzfasern hergestellt sind und deren Oberfläche mit einem Beschichtungssystem beschichtet ist, das mindestens ein Overlay-Papier als Träger a) enthält, ganz besonders bevorzugt mit einem Beschichtungssystem, das als Träger a) neben mindestens einem Overlay-Papier keinen intransparenten Träger enthält. Gemäß dieser Ausführungsform werden HDF- und MDF-Platten erhalten, die eine transparente Oberflächenbeschichtung aufweisen, durch die die Struktur der HDF- und MDF-Platten hindurch scheint, so dass eine eventuelle Färbung oder Bleichung der HDF- und MDF-Platten weiterhin sichtbar ist. Insbesondere gefärbte HDF- und MDF-Platten bilden durch ihre einheitliche Färbung einen hervorragenden Hintergrund für die Effektteilchen, die auf diese Weise besonders gut zur Geltung kommen.According to the present embodiment, very particular preference is given to HDF and MDF boards which are produced from bleached and / or dyed wood fibers and whose surface is coated with a coating system which contains at least one overlay paper as support a) a coating system which contains as carrier a) in addition to at least one overlay paper no intransparent carrier. According to this embodiment, HDF and MDF boards are obtained which have a transparent surface coating through which the structure of the HDF and MDF boards shines, so that any coloring or bleaching of the HDF and MDF boards is still visible. In particular, colored HDF and MDF boards, by their uniform coloring, form an excellent background for the effect particles, which are particularly effective in this way.

Span- und OSB-Platten weisen herstellungsbedingt eine eher unruhig gemusterte Oberfläche auf, die einen relativ unruhigen Hintergrund für die Effektteilchen bilden. Daher werden erfindungsgemäß Span- und OSB-Platten vorzugsweise mit einem Beschichtungssystem wie vorstehend beschrieben, beschichtet, das mindestens ein Dekorpapier als Träger a) enthält. Das Dekorpapier deckt die unruhige Musterung der Span- und OSB-Platten ab, so dass die im Beschichtungssystem enthaltenen Effektteilchen gut sichtbar sind. Vorzugsweise enthält das Beschichtungssystem für Span- und OSB-Platten neben dem Dekorpapier als Träger a) mindestens noch ein Overlay-Papier.Chipboard and OSB boards have a rather restlessly patterned surface due to their production, which creates a relatively turbulent background for the effect particles. Therefore, according to the invention, chipboards and OSB boards are preferably coated with a coating system as described above, which contains at least one decorative paper as support a). The decorative paper covers the restless patterning of the chipboards and OSB boards so that the effect particles contained in the coating system are clearly visible. Preferably, the coating system for chipboard and OSB boards in addition to the decorative paper as a carrier a) at least one overlay paper.

Weiterer Gegenstand der vorliegenden Erfindung sind Einrichtungsgegenstände und Innenausbauten, die die erfindungsgemäß beschichteten Holzwerkstoffe, Kunststoffe und/oder Metalle enthalten.Another object of the present invention are furnishings and interior fittings that contain the inventively coated wood materials, plastics and / or metals.

Im Folgenden wird die Erfindung anhand von Beispielen erläutert.In the following the invention will be explained by means of examples.

Beispiel 1 Schwarz gefärbte MDF-Platte, beschichtet mit einem Melamin-Harz imprägniertem Overlay-Papier, wobei das Effektpigment mit dem Melaminharz aufgebracht wurde (erfindungsgemäß)Example 1 Black-colored MDF board coated with a melamine resin-impregnated overlay paper, wherein the effect pigment was applied with the melamine resin (according to the invention)

Ein Overlay-Papier aus alpha-Cellulose mit 25 g/m2 wurde mit einer Melaminharzflotte durch Tränken und anschließendem Entfernen des überschüssigen Harzes durch zwei Rakel imprägniert. Das Overlay-Papier wurde unter Spannung bei 120 °C für 175 s kurz angetrocknet und eine 1,5 g Effektpigment "Firemist Pearl 9G130L" (Effektpigment basierend auf Borosilikat, beschichtet mit einer TiO2-Schicht, mittlere Teilchengröße ca. 0,1 mm, Hersteller: BASF SE) pro 100 g Harzflotte enthaltende Melaminharzflotte mit einem Rakel (5er Rakel) auf eine Seite des Overlay-Papiers aufgebracht und anschließend getrocknet. Die Zusammensetzung der Harzflotte ist in Tabelle 1 aufgeführt. Tabelle 1: Harzflotte Komponente Gewichtsteile Melamin-Harz (Kauramin® Tränkharz flüssig, KMT 792),
60 Gew.-% Harzanteil 100 Wasser 7,1 Härter (BASF H529 oder H528) 0,35 An overlay paper of alpha-cellulose at 25 g / m 2 was impregnated with a melamine resin liquor by soaking and then removing the excess resin by two squeegees. The overlay paper was briefly dried under tension at 120 ° C. for 175 s and a 1.5 g "Firemist Pearl 9G130L" effect pigment (effect pigment based on borosilicate, coated with a TiO 2 layer, average particle size about 0.1 mm , Manufacturer: BASF SE) per 100 g of resin liquor-containing melamine resin with a squeegee (5-blade) applied to one side of the overlay paper and then dried. The composition of the resin liquor is listed in Table 1. Table 1: Resin liquor component parts by weight Melamine resin (Kauramin® Tränkharz liquid, KMT 792),
60 wt .-% resin content 100 water 7.1 Hardener (BASF H529 or H528) 0.35

Das mit der Effektpigment enthaltenden Harz-Zusammensetzung imprägnierte Overlay wurde nach dem Trocknen auf eine schwarz durchgefärbte MDF-Platte aufgelegt und bei 180 °C und 25 bar 40 sec lang verpresst.The overlay impregnated with the effect pigment-containing resin composition overlay was placed after drying on a black through-dyed MDF board and pressed at 180 ° C and 25 bar for 40 sec.

Es wurde eine glatte, Glitzer-Effekte aufweisende, schwarz glänzende Oberfläche erhalten. Die Schichtdicke des verpressten Overlays betrug ca. 60 Mikrometer.It was a smooth, glitter-effects, black glossy surface obtained. The layer thickness of the pressed overlay was about 60 microns.

Beispiel 2 Schwarz gefärbtes MDF, beschichtet mit Melamin-Harz getränktem und mit Schnipseln aus Effektfolie bestreutem Overlay-Papier (erfindungsgemäß)Example 2 Black-Dyed MDF Coated with Melamine Resin-soaked Overlay Paper Dusted with Chips of Effect Film (Inventive)

Ein Overlay-Papier aus ungefüllter alpha-Cellulose mit 25 g/m2 wurde mit der Melaminharzflotte aus Beispiel 1 beschichtet, durch Tränken und anschließendem Entfernen des überschüssigen Harzes durch 2 Rakel imprägniert. Das Overlay-Papier wurde unter Spannung bei 120 °C für 175 s kurz angetrocknet und aus Effektfolie bestehende Schnipsel mit einer Länge von 0,1 mm bis ca. 0,5 mm aufgestreut.An overlay paper of unfilled alpha-cellulose at 25 g / m 2 was coated with the melamine resin liquor of Example 1, impregnated by impregnation and subsequent removal of the excess resin by 2 squeegees. The overlay paper was under tension at 120 ° C for 175 s briefly dried and sprinkled out of effect foil snippets with a length of 0.1 mm to about 0.5 mm.

Das mit der Melaminharzflotte imprägnierte und mit Effektfolienschnipseln bestreute Overlay-Papier wurde nach dem Trocknen auf eine schwarz durchgefärbte MDF-Platte aufgelegt und bei 180 °C und 25 bar 40 sec lang verpresst.After being dried, the overlay paper impregnated with the melamine resin liquor and sprinkled with effect film chips was placed on a black-dyed MDF board and pressed at 180 ° C. and 25 bar for 40 seconds.

Es wurde eine glatte, schwarz glänzende Oberfläche erhalten, auf der die Glanzfolienschnipsel mit einem leicht opalisierenden Effekt gut zur Geltung kommen. Die Schichtdicke des verpressten Overlays betrug ca. 60 Mikrometer.The result was a smooth, glossy black surface, which highlights the glossy foil snippets with a slightly opalescent effect. The layer thickness of the pressed overlay was about 60 microns.

Claims (14)

Festes Beschichtungssystem zur dekorativen Gestaltung von Oberflächen mit Effektteilchen enthaltend a) mindestens einen mit einer Harz-Zusammensetzung imprägnierten, schichtförmigen Träger, und b) mindestens 0,1 Gew.-% Effektteilchen mit einer Länge von mindestens 0,01 mm, bezogen auf das trockene Beschichtungssystem. Contains solid coating system for the decorative design of surfaces with Effektteilchen a) at least one impregnated with a resin composition, layered carrier, and b) at least 0.1 wt .-% effect particles with a length of at least 0.01 mm, based on the dry coating system. Beschichtungssystem gemäß Anspruch 1, dadurch gekennzeichnet, dass die Effektteilchen ausgewählt sind aus der Gruppe Effektpigmente und Schnipsel von Effektfolie sowie Mischungen davon.Coating system according to claim 1, characterized in that the effect particles are selected from the group effect pigments and snippets of effect film and mixtures thereof. Beschichtungssystem gemäß Anspruch 1 oder 2, dadurch gekennzeichnet, dass als schichtförmige Träger a) Papier eingesetzt wird.Coating system according to Claim 1 or 2, characterized in that paper is used as the layered carrier a). Beschichtungssystem gemäß einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass als schichtförmige Träger a) Dekorpapier und/oder Overlay-Papier eingesetzt wird.Coating system according to one of claims 1 to 3, characterized in that is used as a sheet form base a) decorative paper and / or overlay paper. Beschichtungssystem gemäß einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass das Beschichtungssystem mindestens ein Overlay-Papier als Träger a) enthält.Coating system according to one of claims 1 to 4, characterized in that the coating system comprises at least one overlay paper as a carrier a). Verwendung des Beschichtungssystems gemäß einem der Ansprüche 1 bis 4 zur Beschichtung der Oberflächen von Holzwerkstoffen, Kunststoffen und Metallen.Use of the coating system according to one of claims 1 to 4 for coating the surfaces of wood-based materials, plastics and metals. Verfahren zur Beschichtung der Oberfläche von Holzwerkstoffen, Kunststoffen und Metallen durch Auflegen des Beschichtungssystems gemäß einem der Ansprüche 1 bis 4 auf die Oberfläche und Verpressen der Holzwerkstoffe, Kunststoffe und Metalle mit dem Beschichtungssystem bei Temperaturen von 120 bis 300 °C und Drücken von 2 bis 60 bar.Process for coating the surface of wood-based materials, plastics and metals by applying the coating system according to one of claims 1 to 4 to the surface and pressing the wood-based materials, plastics and metals with the coating system at temperatures of 120 to 300 ° C and pressures of 2 to 60 bar. Holzwerkstoffe, Kunststoffe und Metalle, deren Oberfläche mindestens teilweise mit einem Beschichtungssystem gemäß einem der Ansprüche 1 bis 5 beschichtet ist.Wood materials, plastics and metals whose surface is at least partially coated with a coating system according to one of claims 1 to 5. Holzwerkstoffe gemäß Anspruch 8, dadurch gekennzeichnet, dass die Holzwerkstoffe aus der Gruppe HDF-, MDF-, Span- und OSB-Platten ausgewählt sind.Wood materials according to claim 8, characterized in that the wood materials from the group HDF, MDF, chip and OSB boards are selected. HDF-, MDF-, Span- und OSB-Platten gemäß Anspruch 8 oder 9, dadurch gekennzeichnet, dass die Platten aus gebleichten Holzfasern und/oder Holzspänen hergestellt sindHDF, MDF, chipboard and OSB boards according to claim 8 or 9, characterized in that the boards are made of bleached wood fibers and / or wood shavings HDF-, MDF-, Span- und OSB-Platten gemäß einem der Ansprüche 8 bis 10, dadurch gekennzeichnet, dass die Platten gefärbt sind.HDF, MDF, chipboard and OSB boards according to one of claims 8 to 10, characterized in that the boards are colored. HDF- und MDF-Platten gemäß einem der Ansprüche 8 bis 11, dadurch gekennzeichnet, dass das Beschichtungssystem als Träger a) mindestens ein Overlay-Papier enthält.HDF and MDF boards according to one of claims 8 to 11, characterized in that the coating system contains as carrier a) at least one overlay paper. Span- und OSB-Platten gemäß einem der Ansprüche 8 bis 11, dadurch gekennzeichnet, dass das Beschichtungssystem als Träger a) mindestens ein Dekorpapier enthält.Chipboard and OSB boards according to one of claims 8 to 11, characterized in that the coating system contains as carrier a) at least one decorative paper. Einrichtungsgegenstände und Innenausbauten enthaltend Holzwerkstoffe, Kunststoffe und/oder Metalle gemäß einem der Ansprüche 7 bis 12.Furnishings and interior fittings containing wood-based materials, plastics and / or metals according to one of claims 7 to 12.
EP09180188A 2008-12-23 2009-12-21 Overlay with effect particles on wood fiber board Not-in-force EP2202091B1 (en)

Applications Claiming Priority (1)

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DE102008063020A DE102008063020A1 (en) 2008-12-23 2008-12-23 Overlay with effects

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0249156A2 (en) * 1986-06-12 1987-12-16 Mannington Mills, Inc. Decorative surface coverings having platey material
EP0513155B1 (en) * 1990-02-06 1994-01-05 Arjo Wiggins S.A. Decorative sheets used mainly for panel manufacturing comprising metallic particles or metallized flakes
EP0993944A2 (en) * 1998-10-15 2000-04-19 International Paper Company High pressure laminate with three-dimensional appearance
EP1556196A2 (en) 2002-10-10 2005-07-27 Basf Aktiengesellschaft Use of preparations comprising pigments and dyestuffs for the decorative colouring of derived timber products
WO2008129048A1 (en) 2007-04-24 2008-10-30 Basf Se Method for the production of bleached wood particles and wood materials ranging from light-toned to white

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007028603B4 (en) * 2007-06-19 2011-04-14 Dakor Melamin Imprägnierungen Gmbh Laminate with an abrasion-resistant decorative film and its production method, in particular with an overlay with a special optical effect

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0249156A2 (en) * 1986-06-12 1987-12-16 Mannington Mills, Inc. Decorative surface coverings having platey material
EP0513155B1 (en) * 1990-02-06 1994-01-05 Arjo Wiggins S.A. Decorative sheets used mainly for panel manufacturing comprising metallic particles or metallized flakes
DE69100943T2 (en) * 1990-02-06 1994-05-19 Arjo Wiggins Sa DECORATIVE FILM PROVIDED WITH METAL SCALES OR METALIZED FLAKES, IN PARTICULAR FOR THE PRODUCTION OF LAMINATE PANELS.
EP0993944A2 (en) * 1998-10-15 2000-04-19 International Paper Company High pressure laminate with three-dimensional appearance
EP1556196A2 (en) 2002-10-10 2005-07-27 Basf Aktiengesellschaft Use of preparations comprising pigments and dyestuffs for the decorative colouring of derived timber products
WO2008129048A1 (en) 2007-04-24 2008-10-30 Basf Se Method for the production of bleached wood particles and wood materials ranging from light-toned to white

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DE102008063020A1 (en) 2010-06-24
EP2202091B1 (en) 2011-08-31
ES2369645T3 (en) 2011-12-02

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