EP2960070B1 - Method for finishing a wood panel - Google Patents

Method for finishing a wood panel Download PDF

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Publication number
EP2960070B1
EP2960070B1 EP14002166.8A EP14002166A EP2960070B1 EP 2960070 B1 EP2960070 B1 EP 2960070B1 EP 14002166 A EP14002166 A EP 14002166A EP 2960070 B1 EP2960070 B1 EP 2960070B1
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EP
European Patent Office
Prior art keywords
layer
melamine resin
medium
decoration
primer
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.)
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Application number
EP14002166.8A
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German (de)
French (fr)
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EP2960070A1 (en
Inventor
Frank Oldorff
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Flooring Technologies Ltd
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Flooring Technologies Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to ES14002166.8T priority Critical patent/ES2612003T3/en
Application filed by Flooring Technologies Ltd filed Critical Flooring Technologies Ltd
Priority to EP14002166.8A priority patent/EP2960070B1/en
Priority to PL14002166T priority patent/PL2960070T3/en
Priority to PT140021668T priority patent/PT2960070T/en
Priority to UAA201610800A priority patent/UA118869C2/en
Priority to CN201580033833.0A priority patent/CN106457884B/en
Priority to CA2947789A priority patent/CA2947789C/en
Priority to RU2016141976A priority patent/RU2681098C2/en
Priority to US15/302,818 priority patent/US11059071B2/en
Priority to PCT/EP2015/001221 priority patent/WO2015197171A1/en
Publication of EP2960070A1 publication Critical patent/EP2960070A1/en
Application granted granted Critical
Publication of EP2960070B1 publication Critical patent/EP2960070B1/en
Priority to US17/206,818 priority patent/US11745217B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B05D5/06—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain multicolour or other optical effects
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/26—Processes for applying liquids or other fluent materials performed by applying the liquid or other fluent material from an outlet device in contact with, or almost in contact with, the surface
    • B05D1/265—Extrusion coatings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
    • B05D3/0254—After-treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/12—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by mechanical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/06—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to wood
    • B05D7/08—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to wood using synthetic lacquers or varnishes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/50—Multilayers
    • B05D7/56—Three layers or more
    • B05D7/58—No clear coat specified
    • B05D7/584—No clear coat specified at least some layers being let to dry, at least partially, before applying the next layer
    • 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
    • B44C5/0476—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 with abrasion resistant properties
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/18—Separately-laid insulating layers; Other additional insulating measures; Floating floors
    • E04F15/20—Separately-laid insulating layers; Other additional insulating measures; Floating floors for sound insulation

Definitions

  • the invention relates to a method for finishing a wood-based panel with a top and a bottom.
  • Such a method is for example from the EP 2 338 693 B1 known.
  • Such wood-based panels which are preferably made of MDF or HDF, are widely used and used in many different fields.
  • a particularly large field of application is the use as a floor panel.
  • the decorative layer In particular, in this use, provided with the decor wood-based panels are exposed to immense stress, in particular by walking.
  • the decorative layer In order to withstand these stresses, the decorative layer must be covered with a protective layer.
  • This usually consists of a synthetic resin, for example melamine resin, to which various additives have been added. Due to the various layers applied to the wood-based panel, tensile stresses occur which can cause the panel to warp.
  • a coding Due to the various layers applied to the wood-based panel, tensile stresses occur which can cause the panel to warp.
  • both the top and the bottom of the wood-based panel must be coated to allow these forces to occur evenly on both sides and thus avoid a key.
  • the order of the synthetic resin layer on the wood-based panel can be done in various ways. For example, it is known that synthetic resin granules or powder on the side of the wood-based panel to be coated to apply and to introduce any additives provided. During final compression under the influence of pressure and temperature, the applied powder melts and forms a homogeneous layer. In this method, a double-sided coating of the wood-based panel is of course not possible because the scattered powder is only on the surface of the wood-based panel and is connected only during compression with this.
  • WO 2012/037950 A1 It is known to provide a press-bare carrier plate made of wood fibers or wood shavings on the top of which a primer is applied from a liquid melamine resin, wherein the resin at least partially penetrated into the upper edge layer of the support plate and the area of the resulting in the production of the wood-based panel Press skin at least partially penetrates and tempered. After drying the primer, a primer is applied, and on the dried primer layer, a decor is then printed by means of a water-based paint. Subsequently, a cover layer of at least one enriched with abrasion-resistant particles and cellulose fibers melamine resin is applied to the decor.
  • a primer made of a liquid melamine resin is applied, which penetrates into the lower surface layer of the support plate.
  • a return is applied to the underside of the support plate and the layer structure pressed under the action of pressure and temperature.
  • the wood-based panels produced by this process have a very hard surface. If made of such a wood-based panel floor panels turns when walking on the floor due to the hard surface increased impact sound, resulting in an unpleasant sound sensation. In addition, the surface is relatively brittle due to its hardness, so that micro-cracks can form when heavy objects fall from high to the floor.
  • the invention is based on the object to improve the per se known production technology of melamine resin-based lamination so that laminates with a warmer, softer and less audible sound coating are easy and safe to produce, and the technology can also be easily integrated into existing manufacturing processes.
  • the behavior towards mechanical stress such as impact or abrasion should not worsen, but if possible even improve.
  • Isocyanate groups are highly reactive. They react with the NH group or the methylol group of the melamine resin, resulting in a particularly effective anchoring of the forming layer of the liquid medium on the surface of the melamine resin layer. After the subsequent compression of the layer structure with the wood-based panel, this leads to a coating, which is haptically warmer and softer than a melamine resin layer. If floor panels are subsequently produced from the wood-based panel, this leads to a noise reduction in the case of the laminate floor. Numerous experiments have shown that the behavior against mechanical stress such as impact or abrasion is not deteriorated compared to conventional coatings.
  • liquid melamine resin is also applied to the underside of the carrier plate and dried to a back-pull.
  • a liquid medium can be applied with a proportion of isocyanate groups.
  • the medium may be a dispersion having a solids content of 50 to 60% and the balance being water as solvent, which is dried to a layer after application.
  • water organic solvents or additives are also possible, for example dispersants, release agents, wetting agents or defoamers.
  • the medium may be a molten hotmelt with a 100% solids content (hot melt adhesive), which solidifies upon application to a layer upon cooling. The layer formation can be accelerated by active cooling.
  • Hotmelt is applied either by means of a slot nozzle or a spray application.
  • At least one covering layer consisting of a UV varnish is applied to the dried or solidified medium layer.
  • the covering layer preferably has nanoparticles.
  • wear-resistant Particles in particular corundum particles, either in the liquid medium and / or are sprayed onto the liquid medium, preferably before its layer formation.
  • the melamine resin layer and / or the cover layer may have antistatic and / or antibacterial agents and / or glass beads.
  • the glass spheres can be used as microglass with a diameter of less than 30 ⁇ m for improving the surface properties, in particular in the melamine resin layer and / or as glass spheres with a diameter of 30 to 120 ⁇ m during later compression of the layer structure as a spacer between the layer containing the antiperspirant particles and the press plate serve, whereby the wear on the press plate is reduced.
  • the medium can be applied in several individual layers. Preferably, the medium is applied in an amount of 50 to 200 g / m 2 .
  • a structure can be embossed into the upper side of the last layer, which is preferably formed in particular synchronously with the decor ("synchronous pore").
  • the decor can be a wood, stone or tile decor or even a fantasy decor.
  • the compression of the layer structure is preferably carried out by means of a short-cycle press. If a hotmelt is used as the medium, the pressing is preferably carried out by means of a structured roll (calender roll).
  • the melamine resin may be pure melamine resin. Preferably, however, it is formed as a mixture of melamine resin and urea resin.
  • the single FIGURE shows a wood-based panel 1 made of HDF or MDF with a top O and a bottom U.
  • liquid melamine resin is applied to the primer, which at least partially penetrated into the upper edge layer of the wood-based panel 1.
  • the primer is dried to a primer layer 2.
  • a base color is applied and dried to a base color layer 3.
  • a printing ink is applied to produce a decoration, which is then dried to a decorative layer 4.
  • a liquid melamine resin is applied and dried to a melamine resin layer 5.
  • the melamine resin can contain glass beads 12, in particular with a diameter of up to 30 ⁇ m, which are mixed into the liquid melamine resin.
  • a liquid medium which contains a proportion of isocyanate groups.
  • the liquid medium has a solids content of preferably 50 to 60%, with water as solvent.
  • organic solvents or additives are also possible, for example dispersants, release agents, wetting agents and / or defoamers. Drying of the liquid medium then acts as a layering agent.
  • a hotmelt comprising hot isocyanate groups may also be used.
  • the hotmelt is heated before application and then forms the layer 6 automatically during cooling. The layer formation can be accelerated by active cooling.
  • a hotmelt for example, the company Kleiberit under the name PUR HC 717.5 product used.
  • the isocyanate groups in the hotmelt or in the (dried) dispersion are reactive and react with the methylol group of the melamine resin to form a polyurethane and / or with the NH group to form a urea derivative. Also, the reaction with water to amine and the further reaction with free isocyanate groups to urea derivatives is possible. As a result, anchoring of the dried dispersion or the hot melt on the melamine resin layer 5 is achieved. This is compared to a pure melamine resin softer, yet wear-resistant, haptically warmer and not so noticeable sound layer formed.
  • wear-resistant particles 8 in particular corundum particles can be included, which can be mixed and / or scattered and glass beads 12 having a diameter of 30 to 120 microns, which serve as a spacer between the wear-resistant particles 8 and the press plate during subsequent compression, to reduce the wear on the press plate.
  • a covering layer 7 is applied, which may consist of a UV coating, which preferably contains nanoparticles 11 based on silica to increase the micro-scratch resistance.
  • the cover layer 7 may also contain antistatic and / or antibacterial agents. It is also possible to provide microglass 12 with a diameter of up to 30 ⁇ m for improving the surface properties.
  • the layer structure thus produced is finally - as known - pressed under pressure and temperature influence to form a laminate.
  • a structure corresponding to the decor can be embossed.
  • the pressing of the layer structure is preferably carried out in a short-cycle press. If a hotmelt is used, the layer structure is preferably pressed with a calender roll. The structure is engraved in the short-cycle press in the press plate and the calender roll in the peripheral surface.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Floor Finish (AREA)
  • Laminated Bodies (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Description

Die Erfindung betrifft ein Verfahren zum Veredeln einer Holzwerkstoffplatte mit einer Oberseite und einer Unterseite.The invention relates to a method for finishing a wood-based panel with a top and a bottom.

Ein solches Verfahren ist beispielsweise aus der EP 2 338 693 B1 bekannt.Such a method is for example from the EP 2 338 693 B1 known.

Derartige Holzwerkstoffplatten, die vorzugsweise aus MDF oder HDF bestehen, sind weit verbreitet und werden auf vielen verschiedenen Gebieten eingesetzt. Ein besonders großes Einsatzgebiet ist die Verwendung als Fußbodenpaneel. Insbesondere bei dieser Verwendung sind die mit dem Dekor versehenen Holzwerkstoffplatten einer immensen Belastung, insbesondere durch Begehen ausgesetzt. Damit sie diesen Belastungen Stand halten, muss die Dekorschicht mit einer Schutzschicht abgedeckt werden. Diese besteht meist aus einem Kunstharz, beispielsweise Melaminharz, dem verschiedene Zusatzstoffe beigemischt wurden. Durch die verschiedenen auf die Holzwerkstoffplatte aufgebrachten Schichten kommt es zu Zugspannungen, die dazu führen können, dass sich die Holzwerkstoffplatte verzieht. Man spricht auch von einer Schlüsselung. Deshalb müssen sowohl die Oberseite als auch die Unterseite der Holzwerkstoffplatte beschichtet werden, um diese Kräfte an beiden Seiten gleichmäßig auftreten zu lassen und so eine Schlüsselung zu vermeiden.Such wood-based panels, which are preferably made of MDF or HDF, are widely used and used in many different fields. A particularly large field of application is the use as a floor panel. In particular, in this use, provided with the decor wood-based panels are exposed to immense stress, in particular by walking. In order to withstand these stresses, the decorative layer must be covered with a protective layer. This usually consists of a synthetic resin, for example melamine resin, to which various additives have been added. Due to the various layers applied to the wood-based panel, tensile stresses occur which can cause the panel to warp. One speaks also of a coding. Therefore, both the top and the bottom of the wood-based panel must be coated to allow these forces to occur evenly on both sides and thus avoid a key.

Der Auftrag der Kunstharzschicht auf die Holzwerkstoffplatte kann auf verschiedenste Weise erfolgen. So ist es beispielsweise bekannt, dass Kunstharz als Granulat bzw. Pulver auf die zu beschichtende Seite der Holzwerkstoffplatte aufzubringen und gegebenenfalls vorgesehene Zusatzstoffe einzustreuen. Beim abschließenden Verpressen unter Druck- und Temperatureinfluss schmilzt das aufgetragene Pulver und bildet eine homogene Schicht. Bei diesem Verfahren ist eine beidseitige Beschichtung der Holzwerkstoffplatte naturgemäß nicht möglich, da das aufgestreute Pulver lediglich auf der Oberfläche der Holzwerkstoffplatte liegt und erst beim Verpressen mit dieser verbunden wird.The order of the synthetic resin layer on the wood-based panel can be done in various ways. For example, it is known that synthetic resin granules or powder on the side of the wood-based panel to be coated to apply and to introduce any additives provided. During final compression under the influence of pressure and temperature, the applied powder melts and forms a homogeneous layer. In this method, a double-sided coating of the wood-based panel is of course not possible because the scattered powder is only on the surface of the wood-based panel and is connected only during compression with this.

Aus der WO 2012/037950 A1 ist es bekannt, eine pressblanke Trägerplatte aus Holzfasern oder Holspänen zur Verfügung zu stellen, auf deren Oberseite eine Grundierung aus einem flüssigen Melaminharz aufgebracht wird, wobei das Harz zumindest teilweise in die obere Randschicht der Trägerplatte hineinpenetriert und den Bereich der bei der Herstellung der Holzwerkstoffplatte entstandenen Presshaut zumindest teilweise durchdringt und vergütet. Nach dem Trocknen der Grundierung wird ein Primer aufgetragen, und auf die getrocknete Primerschicht wird dann mittels eines wasserbasierten Lackes ein Dekor aufgedruckt. Anschließend wird auf das Dekor eine Abdeckschicht aus wenigstens einem mit abriebfesten Partikeln und Zellulosefasern angereicherten Melaminharz aufgebracht. Auf die Unterseite der Trägerplatte wird ebenfall eine Grundierung aus einem flüssigen Melaminharz aufgebracht, die in die untere Randschicht der Trägerplatte hineinpenetriert. Auf diese Grundierung wird dann ein Gegenzug auf die Unterseite der Trägerplatte aufgebracht und der Schichtaufbau unter Wirkung von Druck und Temperatur verpresst. Mittels dieser Grundierung, die in die Presshaut eindringt, müssen die Trägerplatten vor ihrer Bearbeitung nicht mehr an der Oberseite und Unterseite abgeschliffen werden. Dadurch kann die Trägerplatte dünner gefertigt werden, sodass die Herstellkosten sinken. Durch das Einpenetrieren von Harz in die Trägerplatte werden außerdem einerseits die Eigenschaften der Presshaut kompensiert und andererseits auch ein guter Unterbau für das Dekor und eine abriebfeste Lage geschaffen.From the WO 2012/037950 A1 It is known to provide a press-bare carrier plate made of wood fibers or wood shavings on the top of which a primer is applied from a liquid melamine resin, wherein the resin at least partially penetrated into the upper edge layer of the support plate and the area of the resulting in the production of the wood-based panel Press skin at least partially penetrates and tempered. After drying the primer, a primer is applied, and on the dried primer layer, a decor is then printed by means of a water-based paint. Subsequently, a cover layer of at least one enriched with abrasion-resistant particles and cellulose fibers melamine resin is applied to the decor. On the underside of the support plate also a primer made of a liquid melamine resin is applied, which penetrates into the lower surface layer of the support plate. On this primer then a return is applied to the underside of the support plate and the layer structure pressed under the action of pressure and temperature. By means of this primer, which penetrates into the press skin, the support plates must be sanded before their processing no longer at the top and bottom. As a result, the carrier plate can be made thinner, so that the production costs decrease. By penetrating resin into the carrier plate, on the one hand, the properties of the pressed skin are compensated and, on the other hand, a good substructure for the decoration and an abrasion-resistant layer are created.

Die nach diesem Verfahren hergestellten Holzwerkstoffplatten weisen eine sehr harte Oberfläche auf. Wenn aus einer solchen Holzwerkstoffplatte Fußbodenpaneele hergestellt werden stellt sich beim Begehen des Fußbodens aufgrund der harten Oberfläche ein erhöhter Trittschall ein, was zu einem unangenehmen Geräusch-Empfinden führt. Außerdem ist die Oberfläche aufgrund ihrer Härte relativ spröde, sodass sich Mikrorisse bilden können, wenn schwere Gegenstände aus großer Höhe auf den Fußboden herunterfallen.The wood-based panels produced by this process have a very hard surface. If made of such a wood-based panel floor panels turns when walking on the floor due to the hard surface increased impact sound, resulting in an unpleasant sound sensation. In addition, the surface is relatively brittle due to its hardness, so that micro-cracks can form when heavy objects fall from high to the floor.

Aus der EP 1 262 607 B1 ist es bekannt, die Trittschallbildung bei Laminat-Fußbodenpaneelen dadurch zu reduzieren, dass auf die Rückseite der Dekorschicht eine Polyurethanschicht aufgebracht wird, die mit der Dekorschicht und einer auf die Dekorschicht aufgebrachten Verschleißschutzschicht zu einem Sandwich verpresst wird. Dieses Sandwich wird dann auf eine Trägerplatte aus Holz oder Holzwerkstoff, insbesondere MDF oder HDF aufkaschiert. Die Polyurethanschicht auf der Rückseite der Dekorschicht kann als eine ZweiKomponenten-Polyurethanbeschichtung direkt auf die Dekorschicht aufgerakelt oder gestrichen werden. Polyurethan hat den besonderen Vorteil, dass seine charakteristischen Eigenschaften in weitem Rahmen einstellbar sind. Dies gilt insbesondere in Bezug auf Härte, Elastizität, Eindrückverhalten und Erholung nach der Bildung von Eindrücken beim Begehen. Polyurethan hat aber auch den Nachteil, dass es etwa um den Faktor 10 bis 15 teurer ist als Melaminharz.From the EP 1 262 607 B1 It is known to reduce the footfall sound in laminate floor panels in that on the back of the decorative layer, a polyurethane layer is applied, which is pressed with the decorative layer and applied to the decorative layer wear protection layer to a sandwich. This sandwich is then laminated to a support plate made of wood or wood-based material, in particular MDF or HDF. The polyurethane layer on the back of the decorative layer can be doctored or painted directly onto the decorative layer as a two-component polyurethane coating. Polyurethane has the particular advantage that its characteristic properties are adjustable over a wide range. This is especially true in terms of hardness, elasticity, indentation and recovery after the formation of impressions when walking. However, polyurethane also has the disadvantage that it is about 10 to 15 times more expensive than melamine resin.

Die Produktion einer solchen großformatigen Trägerplatte ist außerdem sehr kompliziert, und sie ist technisch nur mit einem sehr großen Aufwand beherrschbar. Aufgrund der aufwendigen Technik sind nach diesem Verfahren hergestellte Bodenpaneele recht teuer, sodass der bestehende große Bedarf an Laminaten mit einer wärmeren, weicheren und klanglich weniger auffälligen Beschichtung mit diesem Produkt nicht gedeckt werden kann.The production of such a large-size support plate is also very complicated, and it is technically manageable only with great effort. Due to the complex technology, floor panels produced by this process are quite expensive, so that the existing large demand for laminates with a warmer, softer and less audible coating with this product can not be met.

Von dieser Problemstellung ausgehend liegt der Erfindung die Aufgabe zugrunde, die an sich bekannte Fertigungstechnologie der Laminierung auf Melaminharz-Basis so zu verbessern, dass Laminate mit einer wärmeren, weicheren und klanglich weniger auffälligen Beschichtung einfach und sicher herstellbar sind, und die Technologie zudem leicht in vorhandene Fertigungsabläufe integriert werden kann. Dabei soll sich das Verhalten gegenüber mechanischer Beanspruchung wie Stoß oder Abrieb selbstverständlich nicht verschlechtern, sondern wenn möglich sogar verbessern.Starting from this problem, the invention is based on the object To improve the per se known production technology of melamine resin-based lamination so that laminates with a warmer, softer and less audible sound coating are easy and safe to produce, and the technology can also be easily integrated into existing manufacturing processes. Of course, the behavior towards mechanical stress such as impact or abrasion should not worsen, but if possible even improve.

Zur Problemlösung zeichnet sich das gattungsgemäße Verfahren durch folgende Schritte aus:

  1. a) Auftragen einer Grundierung aus einem flüssigen Melaminharz auf die Oberseite, wobei das Melaminharz wenigstens teilweise in die obere Randschicht der Holzwerkstoffplatte hineinpenetriert,
  2. b) Trocknen der Grundierung zu einer Grundierungsschicht,
  3. c) Auftragen einer Grundfarbe auf die Grundierungsschicht,
  4. d) Trocknen der Grundfarbe zu einer Grundfarbschicht,
  5. e) Auftragen einer Druckfarbe auf die Grundfarbschicht zur Erzeugung eines Dekors,
  6. f) Trocknen des Dekors zu einer Dekorschicht,
  7. g) Auftragen eines flüssigen Melaminharzes auf die getrocknete Dekorschicht,
  8. h) Trocknen des Melaminharzes zu einer Melaminharzschicht,
  9. i) Auftragen eines flüssigen Mediums mit einem Anteil an Isocyanatgruppen auf die Melaminharzschicht.
To solve the problem, the generic method is characterized by the following steps:
  1. a) applying a primer of a liquid melamine resin to the top, the melamine resin at least partially penetrated into the upper surface layer of the wood-based panel,
  2. b) drying the primer to a primer layer,
  3. c) applying a base color to the primer layer,
  4. d) drying the base color to a base color layer,
  5. e) applying a printing ink to the base ink layer to produce a decoration,
  6. f) drying the decoration to a decorative layer,
  7. g) applying a liquid melamine resin to the dried decorative layer,
  8. h) drying the melamine resin to a melamine resin layer,
  9. i) applying a liquid medium with a proportion of isocyanate groups on the melamine resin layer.

Isocyanatgruppen sind hoch reaktiv. Sie reagieren mit der NH-Gruppe oder der Methylolgruppe des Melaminharzes, was zu einer besonders wirksamen Verankerung der sich ausbildenden Schicht des flüssigen Mediums auf der Oberfläche der Melaminharzschicht führt. Nach dem späteren Verpressen des Schichtaufbaus mit der Holzwerkstoffplatte führt dies zu einer Beschichtung, die haptisch wärmer und weicher ist als eine Melaminharzschicht. Werden aus der Holzwerkstoffplatte anschließend Fußbodenpaneele hergestellt, führt dies bei dem Laminatfußboden zu einer Raumschallreduzierung. Zahlreiche Versuche haben ergeben, dass das Verhalten gegenüber mechanischer Beanspruchung wie Stoß oder Abrieb gegenüber herkömmlichen Beschichtungen nicht verschlechtert ist.Isocyanate groups are highly reactive. They react with the NH group or the methylol group of the melamine resin, resulting in a particularly effective anchoring of the forming layer of the liquid medium on the surface of the melamine resin layer. After the subsequent compression of the layer structure with the wood-based panel, this leads to a coating, which is haptically warmer and softer than a melamine resin layer. If floor panels are subsequently produced from the wood-based panel, this leads to a noise reduction in the case of the laminate floor. Numerous experiments have shown that the behavior against mechanical stress such as impact or abrasion is not deteriorated compared to conventional coatings.

Vorzugsweise wird auch auf die Unterseite der Trägerplatte flüssiges Melaminharz aufgebracht und zu einem Gegenzug getrocknet. Dadurch kann verhindert werden, dass sich die Platte bzw. die aus der Platte hergestellten Paneele verziehen (verwinden). Auch auf den Gegenzug kann ein flüssiges Medium mit einem Anteil an Isocyanatgruppen aufgetragen werden.Preferably, liquid melamine resin is also applied to the underside of the carrier plate and dried to a back-pull. As a result, it is possible to prevent the plate or the panels produced from the plate from warping (twisting). Also on the return, a liquid medium can be applied with a proportion of isocyanate groups.

Das Medium kann eine Dispersion mit einem Feststoffanteil von 50 bis 60 % und dem Rest Wasser als Lösemittel sein, die nach dem Auftragen zu einer Schicht getrocknet wird. Neben Wasser sind zudem organische Lösemittel oder Zusätze möglich, beispielsweise Dispergiermittel, Trennmittel, Netzmittel oder Entschäumer. Auch kann das Medium ein aufgeschmolzener Hotmelt mit einem 100 %igen Feststoffanteil (Heißkleber) sein, der nach dem Auftragen beim Abkühlen zu einer Schicht erstarrt. Die Schichtbildung kann durch aktives Kühlen beschleunigt werden.The medium may be a dispersion having a solids content of 50 to 60% and the balance being water as solvent, which is dried to a layer after application. In addition to water, organic solvents or additives are also possible, for example dispersants, release agents, wetting agents or defoamers. Also, the medium may be a molten hotmelt with a 100% solids content (hot melt adhesive), which solidifies upon application to a layer upon cooling. The layer formation can be accelerated by active cooling.

Aufgetragen wird Hotmelt entweder mittels einer Schlitzdüse oder einem Sprühauftrag.Hotmelt is applied either by means of a slot nozzle or a spray application.

Vorzugsweise wird auf die getrocknete bzw. erstarrte Mediumschicht mindestens eine aus einem UV-Lack bestehende Abdeckschicht aufgetragen. Zur Verbesserung der Mikrokratzfestigkeit weist die Abdeckschicht vorzugsweise Nanopartikel auf.Preferably, at least one covering layer consisting of a UV varnish is applied to the dried or solidified medium layer. To improve the micro-scratch resistance, the covering layer preferably has nanoparticles.

Um die Abriebfestigkeit der Platte zu erhöhen, sind vorzugsweise verschleißhemmende Partikel, insbesondere Korundpartikel, entweder in dem flüssigen Medium enthalten und/oder werden auf das flüssige Medium aufgesprüht, vorzugsweise vor dessen Schichtbildung.In order to increase the abrasion resistance of the plate, are preferably wear-resistant Particles, in particular corundum particles, either in the liquid medium and / or are sprayed onto the liquid medium, preferably before its layer formation.

Die Melaminharzschicht und/oder die Abdeckschicht können antistatisch und/oder antibakteriell wirksame Mittel und/oder Glaskugeln aufweisen. Die Glaskugeln können als Mikroglas mit einem Durchmesser von unter 30 µm zur Verbesserung der Oberflächeneigenschaften insbesondere in der Melaminharzschicht und/oder als Glaskugeln mit einem Durchmesser von 30 bis 120 µm beim späteren Verpressen des Schichtaufbaus als Abstandshalter zwischen der die veschleißhemmenden Partikel enthaltenen Schicht und dem Pressblech dienen, wodurch der Verschleiß am Pressblech reduziert wird.The melamine resin layer and / or the cover layer may have antistatic and / or antibacterial agents and / or glass beads. The glass spheres can be used as microglass with a diameter of less than 30 μm for improving the surface properties, in particular in the melamine resin layer and / or as glass spheres with a diameter of 30 to 120 μm during later compression of the layer structure as a spacer between the layer containing the antiperspirant particles and the press plate serve, whereby the wear on the press plate is reduced.

Das Medium kann in mehreren Einzelschichten aufgetragen werden. Vorzugweise wird das Medium mit einer Menge von 50 bis 200 g/m2 aufgetragen.The medium can be applied in several individual layers. Preferably, the medium is applied in an amount of 50 to 200 g / m 2 .

Beim Verpressen des Schichtaufbaus kann in die Oberseite der letzten Schicht eine Struktur eingeprägt werden, die insbesondere vorzugsweise synchron zu dem Dekor ausgebildet wird ("Synchronpore"). Das Dekor kann dabei ein Holz-, Stein- oder Fliesendekor oder aber auch ein Phantasiedekor sein.When pressing the layer structure, a structure can be embossed into the upper side of the last layer, which is preferably formed in particular synchronously with the decor ("synchronous pore"). The decor can be a wood, stone or tile decor or even a fantasy decor.

Wird als Medium eine Dispersion verwendet, erfolgt das Verpressen des Schichtaufbaus vorzugsweise mittels einer Kurztaktpresse. Wird als Medium ein Hotmelt verwendet, erfolgt das Verpressen vorzugsweise mittels einer strukturierten Walze (Kalanderwalze).If a dispersion is used as the medium, the compression of the layer structure is preferably carried out by means of a short-cycle press. If a hotmelt is used as the medium, the pressing is preferably carried out by means of a structured roll (calender roll).

Das Melaminharz kann reines Melaminharz sein. Vorzugsweise ist es aber als eine Mischung aus Melaminharz und Harnstoffharz gebildet.The melamine resin may be pure melamine resin. Preferably, however, it is formed as a mixture of melamine resin and urea resin.

Mit Hilfe einer Zeichnung soll die Erfindung nachfolgend näher beschrieben werden.With the help of a drawing, the invention will be described in more detail below.

Die einzige Figur zeigt eine Holzwerkstoffplatte 1 aus HDF oder MDF mit einer Oberseite O und einer Unterseite U. Auf die Oberseite O wird zur Grundierung flüssiges Melaminharz aufgetragen, das zumindest teilweise in die obere Randschicht der Holzwerkstoffplatte 1 hineinpenetriert. Anschließend wird die Grundierung zu einer Grundierungsschicht 2 getrocknet. Auf die trockene Grundierungsschicht 2 wird eine Grundfarbe aufgetragen und zu einer Grundfarbschicht 3 getrocknet. Auf die Grundfarbschicht 3 wird zur Erzeugung eines Dekors eine Druckfarbe aufgetragen, die anschließend zu einer Dekorschicht 4 getrocknet wird. Auf die getrocknete Dekorschicht 4 wird ein flüssiges Melaminharz aufgetragen und zu einer Melaminharzschicht 5 getrocknet. Das Melaminharz kann Glaskugeln 12, insbesondere mit einem Durchmesser bis 30 µm, enthalten, die in das flüssige Melaminharz eingemischt werden.The single FIGURE shows a wood-based panel 1 made of HDF or MDF with a top O and a bottom U. On the top O liquid melamine resin is applied to the primer, which at least partially penetrated into the upper edge layer of the wood-based panel 1. Subsequently, the primer is dried to a primer layer 2. On the dry primer layer 2, a base color is applied and dried to a base color layer 3. On the base color layer 3, a printing ink is applied to produce a decoration, which is then dried to a decorative layer 4. On the dried decorative layer 4, a liquid melamine resin is applied and dried to a melamine resin layer 5. The melamine resin can contain glass beads 12, in particular with a diameter of up to 30 μm, which are mixed into the liquid melamine resin.

Auf die Oberseite O der Melaminharzschicht 5 wird ein flüssiges Medium aufgetragen, das einen Anteil an Isocyanatgruppen enthält. Das flüssige Medium weist einen Feststoffanteil von vorzugsweise 50 bis 60 % auf, mit Wasser als Lösemittel. Neben Wasser sind zudem organische Lösemittel oder Zusätze möglich, beispielsweise Dispergiermittel, Trennmittel, Netzmittel und/oder Entschäumer. Eine Trocknung des flüssigen Mediums wirkt dann schichtbildend.On the top O of the melamine resin layer 5, a liquid medium is applied, which contains a proportion of isocyanate groups. The liquid medium has a solids content of preferably 50 to 60%, with water as solvent. In addition to water, organic solvents or additives are also possible, for example dispersants, release agents, wetting agents and / or defoamers. Drying of the liquid medium then acts as a layering agent.

Anstatt das flüssige Medium als Dispersion auf die Oberseite O der Melaminharzschicht 5 aufzutragen und anschleißend aktiv zu trocknen, kann auch ein Hotmelt (Heißkleber) verwendet werden, der Isocyanatgruppen aufweist. Der Hotmelt wird vor dem Auftragen erwärmt und bildet anschließend beim Abkühlen selbsttätig die Schicht 6 aus. Die Schichtbildung kann durch aktives Kühlen beschleunigt werden.Instead of applying the liquid medium as a dispersion to the top O of the melamine resin layer 5 and actively drying it, a hotmelt comprising hot isocyanate groups may also be used. The hotmelt is heated before application and then forms the layer 6 automatically during cooling. The layer formation can be accelerated by active cooling.

Als Hotmelt kann beispielsweise das von der Firma Kleiberit unter der Bezeichnung PUR HC 717.5 vertriebene Produkt verwendet werden. Die Isocyanatgruppen in dem Hotmelt oder in der (getrockneten) Dispersion sind reaktiv und reagieren mit der Methylolgruppe des Melaminharzes zu einem Polyurethan und/oder mit der NH-Gruppe zu einem Harnstoffderivat. Auch ist die Reaktion mit Wasser zu Amin und der Weitereaktion mit freien Isocyanatgruppen zu Harnstoffderivaten möglich. Dadurch wird eine Verankerung der getrockneten Dispersion bzw. des Hotmelts auf der Melaminharzschicht 5 erreicht. Damit wird eine gegenüber einer reinen Melaminharzschicht weichere, dennoch verschleißfeste, haptisch wärmere und klanglich nicht so auffällige Schicht ausgebildet.As a hotmelt, for example, the company Kleiberit under the name PUR HC 717.5 product used. The isocyanate groups in the hotmelt or in the (dried) dispersion are reactive and react with the methylol group of the melamine resin to form a polyurethane and / or with the NH group to form a urea derivative. Also, the reaction with water to amine and the further reaction with free isocyanate groups to urea derivatives is possible. As a result, anchoring of the dried dispersion or the hot melt on the melamine resin layer 5 is achieved. This is compared to a pure melamine resin softer, yet wear-resistant, haptically warmer and not so noticeable sound layer formed.

In dem Medium 6 können verschleißhemmende Partikel 8, insbesondere Korundpartikel enthalten sein, die eingemischt und/oder aufgestreut werden können sowie Glaskugeln 12 mit einem Durchmesser von 30 bis 120 µm, die beim späteren Verpressen als Abstandshalter zwischen den verschleißhemmenden Partikeln 8 und dem Pressblech dienen, um den Verschleiß am Pressblech zu reduzieren.In the medium 6 wear-resistant particles 8, in particular corundum particles can be included, which can be mixed and / or scattered and glass beads 12 having a diameter of 30 to 120 microns, which serve as a spacer between the wear-resistant particles 8 and the press plate during subsequent compression, to reduce the wear on the press plate.

Auf die Oberseite O der festen Medium-Schicht 6 wird eine Abdeckschicht 7 aufgetragen, die aus einem UV-Lack bestehen kann, der vorzugsweise Nanopartikel 11 auf Basis von Kieselsäure zur Erhöhung der Mikrokratzfestigkeit enthält.On the top O of the solid medium layer 6, a covering layer 7 is applied, which may consist of a UV coating, which preferably contains nanoparticles 11 based on silica to increase the micro-scratch resistance.

Die Abdeckschicht 7 kann außerdem antistatisch und/oder antibakteriell wirksame Mittel enthalten. Auch kann Mikroglas 12 mit einem Durchmesser bis 30 µm zur Verbesserung der Oberflächeneigenschaften vorgesehen sein.The cover layer 7 may also contain antistatic and / or antibacterial agents. It is also possible to provide microglass 12 with a diameter of up to 30 μm for improving the surface properties.

Der so hergestellte Schichtaufbau wird abschließend - wie bekannt - unter Druck- und Temperatureinfluss zu einem Laminat verpresst. Dabei kann in den Schichtaufbau, insbesondere in die Schicht 6 eine zu dem Dekor korrespondierende Struktur eingeprägt werden. Wenn als flüssiges Medium eine Dispersion aufgetragen wird, erfolgt das Verpressen des Schichtaufbaus vorzugsweise in einer Kurztaktpresse. Wird ein Hotmelt verwendet, wird der Schichtaufbau vorzugsweise mit einer Kalanderwalze verpresst. Die Struktur ist bei der Kurztaktpresse in das Pressblech und bei der Kalanderwalze in deren Umfangsfläche eingraviert.The layer structure thus produced is finally - as known - pressed under pressure and temperature influence to form a laminate. In this case, in the layer structure, in particular in the layer 6, a structure corresponding to the decor can be embossed. When as a liquid medium, a dispersion is applied, the pressing of the layer structure is preferably carried out in a short-cycle press. If a hotmelt is used, the layer structure is preferably pressed with a calender roll. The structure is engraved in the short-cycle press in the press plate and the calender roll in the peripheral surface.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
HolzwerkstoffplatteWood panel
22
Grundierungsschichtprimer layer
33
GrundfarbschichtColor layer
44
Dekorschichtdecorative layer
55
MelaminharzschichtMelamine resin layer
66
Medium / Dispersion / HotmeltMedium / dispersion / hotmelt
77
Abdeckschichtcovering
88th
verschleißhemmende Partikel / Korundpartikelwear-resistant particles / corundum particles
99
Gegenzugreturn
1010
Medium / Dispersion / HotmeltMedium / dispersion / hotmelt
1111
Nanopartikelnanoparticles
1212
Glaskugeln / MikroglasGlass balls / micro glass
OO
Oberseitetop
UU
Unterseitebottom

Claims (19)

  1. Method for finishing a wooden material board (1) having an upper side (O) and an underside (U), comprising the following steps:
    a) applying a primer of a liquid melamine resin to the upper side (O), the melamine resin penetrating at least partly into the upper marginal layer of the wooden material board (1),
    b) drying the primer to form a primer layer (2),
    c) applying a base colour to the primer layer (2),
    d) drying the base colour to form a base colour layer (3),
    e) applying a printing ink to the base colour layer (3) to produce a decoration,
    f) drying the decoration to form a decorative layer (4),
    g) applying a liquid melamine resin to the dried decorative layer (4),
    h) drying the melamine resin to form a melamine resin layer (5),
    and characterized by the step:
    i) applying a liquid medium with a proportion of isocyanate groups to the melamine resin layer (5).
  2. Method according to Claim 1, characterized in that liquid melamine resin is applied to the underside (U) and is dried to form a counterbalance (9).
  3. Method according to Claim 2, characterized in that a liquid medium with a proportion of isocyanate groups is applied to the counterbalance (9).
  4. Method according to Claim 1 or 3, characterized in that the medium is an emulsion having a solids content of 50 to 60% and the remainder is water, which, following the application, is dried to form a layer (6).
  5. Method according to Claim 1 or 3, characterized in that the medium is a molten hot-melt adhesive which, following the application, solidifies to form a layer (6).
  6. Method according to Claim 1, characterized in that at least one covering layer (7) is applied to the dried medium layer.
  7. Method according to Claim 6, characterized in that the covering layer (7) has nanoparticles (9) to improve the micro-scratch resistance.
  8. Method according to one of the preceding claims, characterized in that the medium has wear-inhibiting particles (8), in particular corundum particles.
  9. Method according to one of the preceding claims, characterized in that the medium, the melamine resin layer (4) and/or the covering layer (7) have anti-statically and/or anti-bacterially active agents and/or glass spheres (12).
  10. Method according to Claim 9, characterized in that the glass spheres (12) have a diameter less than 30 µm.
  11. Method according to Claim 9, characterized in that the glass spheres (12) have a diameter of 30 to 120 µm.
  12. Method according to one of the preceding claims, characterized in that the medium is applied in a plurality of individual layers.
  13. Method according to one of the preceding claims, characterized in that the liquid medium is applied in a quantity of 50 to 200 g/m2.
  14. Method according to one of the preceding claims, characterized in that the layer structure is pressed.
  15. Method according to Claim 14, characterized in that during the pressing of the layer structure, a structure is impressed into the layers applied to the upper side (O).
  16. Method according to Claim 14 if dependent on Claim 4 or according to Claim 15 if Claim 14 is dependent on Claim 4, characterized in that the pressing is carried out by means of a short-cycle press.
  17. Method according to Claim 14 if dependent on Claim 5 or according to Claim 15 if Claim 14 is dependent on claim 5, characterized in that the pressing is carried out by means of at least one structured roll.
  18. Method according to one of Claims 15 to 17, characterized in that the structure is formed synchronously with the decoration.
  19. Method according to one of the preceding claims, characterized in that the decoration is a wood, stone or tile decoration or fantasy decoration.
EP14002166.8A 2014-06-24 2014-06-24 Method for finishing a wood panel Active EP2960070B1 (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
EP14002166.8A EP2960070B1 (en) 2014-06-24 2014-06-24 Method for finishing a wood panel
PL14002166T PL2960070T3 (en) 2014-06-24 2014-06-24 Method for finishing a wood panel
PT140021668T PT2960070T (en) 2014-06-24 2014-06-24 Method for finishing a wood panel
ES14002166.8T ES2612003T3 (en) 2014-06-24 2014-06-24 Procedure for finishing a wood composite panel
CN201580033833.0A CN106457884B (en) 2014-06-24 2015-06-17 For finishing the method for wood plank
CA2947789A CA2947789C (en) 2014-06-24 2015-06-17 Method for finishing a wood board
UAA201610800A UA118869C2 (en) 2014-06-24 2015-06-17 Method for finishing a wood board
RU2016141976A RU2681098C2 (en) 2014-06-24 2015-06-17 Method for finishing wood board
US15/302,818 US11059071B2 (en) 2014-06-24 2015-06-17 Method for finishing a wood-based board
PCT/EP2015/001221 WO2015197171A1 (en) 2014-06-24 2015-06-17 Method for finishing a wood board
US17/206,818 US11745217B2 (en) 2014-06-24 2021-03-19 Method for finishing a wood board

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EP14002166.8A EP2960070B1 (en) 2014-06-24 2014-06-24 Method for finishing a wood panel

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PT2960070T (en) * 2014-06-24 2017-01-09 Flooring Technologies Ltd Method for finishing a wood panel
PT3888933T (en) * 2019-05-13 2022-06-14 Flooring Technologies Ltd Method for the manufacture of a wooden board provided with a decorative layer

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AT405150B (en) * 1996-03-12 1999-05-25 Constantia Iso Holding Aktieng METHOD FOR PRODUCING A WEATHER-RESISTANT, DECORATIVE MOLDED PART
US6021615A (en) * 1998-11-19 2000-02-08 Brown; Arthur J. Wood flooring panel
DE19930555C1 (en) * 1999-07-02 2001-01-18 Basf Coatings Ag Aqueous coating material, especially an aqueous filler or stone chip protection primer
US20040006944A1 (en) * 2000-07-25 2004-01-15 Shuji Miyamoto Structure and method for floor-surface covering
EP1262607B1 (en) 2001-05-25 2004-09-22 Windmöller Consulting GmbH Ulrich Method for the realization of a floor panel
SE519791C2 (en) * 2001-07-27 2003-04-08 Valinge Aluminium Ab System for forming a joint between two floorboards, floorboards therefore provided with sealing means at the joint edges and ways of manufacturing a core which is processed into floorboards
EP1469140B1 (en) * 2003-04-16 2009-03-25 E.F.P. Floor Products Fussböden GmbH Process for production of a panel with a core of a wood-based material
KR100758795B1 (en) * 2006-04-25 2007-09-14 주식회사 엘지화학 Flooring having transfer-printed hdf and process for manufacturing the same
DE102007039949B3 (en) * 2007-08-23 2008-12-04 Flooring Technologies Ltd. Device for applying a suspension to a carrier plate
CN201292641Y (en) 2008-11-17 2009-08-19 任毅 Wood-based composite floor
PT2338693E (en) 2009-12-23 2012-08-17 Flooring Technologies Ltd Method and device for finishing a composite wood board
BE1020391A3 (en) 2010-04-30 2013-09-03 Shaw Ind Group Inc VINYL FREE ELASTIC FLOORING PRODUCT AND METHOD FOR THE PRODUCTION THEREOF.
CN102400537A (en) 2010-09-19 2012-04-04 杨树文 Cement floor with wood veins and surface processing method thereof
MX2013003217A (en) 2010-09-23 2013-06-28 Flooring Technologies Ltd Method for producing panels and panel produced according to the method.
PT2960070T (en) * 2014-06-24 2017-01-09 Flooring Technologies Ltd Method for finishing a wood panel

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US11059071B2 (en) 2021-07-13
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RU2681098C2 (en) 2019-03-04
RU2016141976A3 (en) 2019-01-10
CN106457884A (en) 2017-02-22
PT2960070T (en) 2017-01-09
US11745217B2 (en) 2023-09-05
RU2016141976A (en) 2018-07-24
CA2947789C (en) 2022-06-21
PL2960070T3 (en) 2017-04-28
UA118869C2 (en) 2019-03-25
ES2612003T3 (en) 2017-05-11
CN106457884B (en) 2018-05-25
CA2947789A1 (en) 2015-12-30
US20210205842A1 (en) 2021-07-08

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