EP2105320B1 - Decorative finishing a composite wooden panel - Google Patents

Decorative finishing a composite wooden panel Download PDF

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Publication number
EP2105320B1
EP2105320B1 EP09005141A EP09005141A EP2105320B1 EP 2105320 B1 EP2105320 B1 EP 2105320B1 EP 09005141 A EP09005141 A EP 09005141A EP 09005141 A EP09005141 A EP 09005141A EP 2105320 B1 EP2105320 B1 EP 2105320B1
Authority
EP
European Patent Office
Prior art keywords
layer
board
protective layer
decoration
sealing layer
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.)
Active
Application number
EP09005141A
Other languages
German (de)
French (fr)
Other versions
EP2105320A1 (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
Original Assignee
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
Family has litigation
Priority to DE2003110199 priority Critical patent/DE10310199B4/en
Application filed by Flooring Technologies Ltd filed Critical Flooring Technologies Ltd
Priority to EP03020230.3A priority patent/EP1454763B2/en
Publication of EP2105320A1 publication Critical patent/EP2105320A1/en
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=32797890&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2105320(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application granted granted Critical
Publication of EP2105320B1 publication Critical patent/EP2105320B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00Flooring
    • E04F15/02Flooring or floor layers composed of a number of similar elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27NMANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N7/00After-treatment, e.g. reducing swelling or shrinkage, surfacing; Protecting the edges of boards against access of humidity
    • B27N7/005Coating boards, e.g. with a finishing or decorating layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B44DECORATIVE ARTS
    • B44CPRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C1/00Processes, not specifically provided for elsewhere, for producing decorative surface effects
    • B44C1/24Pressing or stamping ornamental designs on surfaces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B44DECORATIVE ARTS
    • B44CPRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C5/00Processes for producing special ornamental bodies
    • B44C5/04Ornamental plaques, e.g. decorative panels, decorative veneers
    • B44C5/043Ornamental plaques, e.g. decorative panels, decorative veneers containing wooden elements
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00Flooring
    • E04F15/02Flooring or floor layers composed of a number of similar elements
    • E04F15/02005Construction of joints, e.g. dividing strips
    • E04F15/02033Joints with beveled or recessed upper edges
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00Flooring
    • E04F15/18Separately-laid insulating layers; Other additional insulating measures; Floating floors
    • E04F15/181Insulating layers integrally formed with the flooring or the flooring elements
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2290/00Specially adapted covering, lining or flooring elements not otherwise provided for
    • E04F2290/04Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire
    • E04F2290/041Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire against noise
    • E04F2290/043Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire against noise with a bottom layer for sound insulation

Description

  • The invention relates to a method for finishing a wood material board, in particular MDF or HDF board with a top and a bottom. Such plates are used for example for furniture construction. From them also panels, in particular floor panels can be produced.
  • Floor panels with a base plate made of wood material are commonly referred to as laminate panels and have been for many years for the substitution of parquet in the trade. The desired decor (parquet, wood grain, tiles) is printed on a paper web, which is then coated with resin and rolled up on a roll or stacked as sheets. The thus prepared decorative sheet is placed on the carrier plate and pressed at the floor manufacturer. By printing the decoration on the paper web, the subsequent sealing of the paper web with synthetic resin and the subsequent bonding of the decorative layer to the carrier plate by pressure and temperature, the paper web changes in dimensions. The expert speaks of the paper growing. The paper grows both in length (length growth) and in width (width growth). If this decorative panel is now to be cut to individual panels, the length and width growth must be taken into account, because otherwise an uneven decor distribution on the individual panels would be present. This would have the consequence that the composite of an unevenly distributed decorative layer floor Having the joint edges of the panels Dekorsprünge. Even if such decorative jumps are only a few millimeters, they are noticeable when viewed, which adversely affects the aesthetic impression and thus reduces the quality of the floor designed.
  • In order to be able to produce in a quality-appropriate manner, the paper growth must be recorded and the saw, which saws the panels from the carrier plate, adjusted accordingly. Manual adjustment is very time consuming. The DE 100 19 054 C1 describes a method for cutting panels from a carrier plate, with which the saw can be automatically adapted to the paper growth. This requires cameras that determine the actual position of defined decorative points. The actual position is then compared with the desired position and determines the deviation of the latitude or longitude, so that the saw can be adjusted accordingly.
  • In order to optimize the cut so a lot of effort must be operated, which increases the cost of producing high-quality panels. In order to further adapt the optics of the laminate panel to the appearance of a natural wood panel, a die having a relief can be provided in the press in which the decorative layer is pressed with the support panel, which embosses a relief corresponding to the wood grain into the synthetic resin layer. Since the paper growth is not reproducible, it is not possible to bring the relief completely in accordance with the decor. The joints of a tile mirror, as deviations would be immediately visible here, can not be embossed into the surface.
  • In the DE 195 32 819 A1 discloses a method for producing a wood-based panel with an optically designable surface, in which a primer, a seal, a pressure base and a decor pressure are successively applied to the wood-based panel. The printing base is built up from a primer coloring or a primer of a paint seal and a surface finish. By means of gravure cylinders can be on the pressure base Decor print, for example, printed in a two-color print. Finally, a multilayer acrylate UV varnish, which is curable by means of UV light, can be applied to this print.
  • In the DE 199 41 300 A1 For example, there is described a hot workable sheet having a core of wood and / or cellulosic fibers impregnated with a thermosetting formaldehyde resin. On this press plate can be applied on both sides of a decorative layer of a plastic, paper or wood foil and / or a lacquer layer. Furthermore, the decorative layers can also consist of a crosslinked acrylic, urethane, epoxy or melamine resin containing a filler or a dye.
  • The EP 1 026 008 A2 discloses an overlay, a method for producing an overlay, and a method for producing a multilayer laminate, in which patterns and coloring layers are applied in counter-pressure to a carrier layer on the underside. The carrier layer used here may be a paper impregnated with melamine resin, which is pressed with the laminate.
  • The DE 197 51 115 A1 discloses a method for coating, for example, a panel, in which at least one color layer is applied to the surface by means of a printing process, in particular by screen printing. The surface may be untreated, ground or pretreated, in particular painted. Finally, the applied ink layer can be covered by a clearcoat.
  • Starting from this problem, a method for finishing a wood-based panel is to be specified, with which the disadvantages described above are avoided.
  • The problem is solved with a generic wood-based panel by the following Steps:
  • a)
    Applying a sealing layer of melamine resin or urea resin to the top of the plate,
    b)
    Imprinting a decoration which has heat-resistant colors, preferably made of heat-resistant paints, on the sealing layer,
    c)
    Applying a protective layer of melamine resin to the decor,
    d)
    Pressing the plate under the effect of temperature until the protective layer and the sealing layer melt and connect to one another, including the printed decoration,
    e)
    Producing depressions in the protective layer during pressing, by using a press plate, which is provided with a relief corresponding to the decor.
  • The fact that the decor is printed on the plate, not only the problem associated with the paper growth continues, but also the handling, which is connected to the laying of the paper web on the top of the plate. The application of the sealing layer on the carrier plate prevents the ink from being absorbed by the carrier plate, which would be the case without the sealing layer, since the carrier plate as such is absorbent. The sealing layer holds and binds the decorative paint to the surface so that the decorative layer remains on the surface and forms a precise, clearly visible décor. The protective layer of melamine resin replaces the known overlay, which is placed on the decor paper in the known finishing process. By subsequently pressing under the effect of temperature until the protective layer and the sealing layer melt, the decoration is enclosed and Sealing layer and protective layer become a composite. With the help of the press plate, the gloss level of the surface can be adjusted. If a polished press plate is used, a high-gloss finish is achieved.
  • So that the decor or the color layer does not melt during the compression or changes color, a correspondingly heat-resistant paint or heat-resistant lacquer must be used.
  • Preferably, the plate is refined by the following steps:
  1. f) applying a layer of melamine resin to the underside of the plate,
  2. g) pressing the plate under the action of temperature until the layer of melamine resin melts and bonds to the plate.
  • The plate can preferably also be refined by the following steps:
    1. f) applying a sealing layer of melamine resin to the underside of the plate,
    2. g) applying a paint layer having heat resistant paints to the sealant layer,
    3. h) applying a protective layer of melamine resin to the paint layer,
    4. i) compressing the plate under the effect of temperature until the protective layer and the sealing layer melt and combine with the inclusion of the color layer.
  • These steps replace the usual joist in a laminate panel. The individual layer thicknesses correspond to those on the upper side, so that a distortion of the plate is excluded.
  • It is particularly advantageous if the upper side and the lower side are finished at the same time, as a result of which the production time is reduced.
  • The finishing of the plate can be carried out in a continuous process, wherein preferably a continuous press is used for the pressing. As a result, the production time is further shortened, which reduces production costs.
  • The sealing layers and / or the protective layers are preferably applied in a plurality of individual layers, wherein each individual layer dries out before the application of the next layer. The individual layers have a basis weight of 10-40 g / m2 each. The sealing layer preferably consists of two individual layers; the protective layer of four individual layers. The printing ink can also be applied in several layers.
  • In order to obtain a smooth surface, the plate is preferably ground before the first single layer of the sealing layer is applied. In at least one single layer of the protective layer corundum is mixed or scattered to increase the abrasion resistance. Also, antibacterial and / or antistatic additives can be mixed or spread in the protective layer. This can be done in the same or in a different single layer. Preferably, all individual layers are treated accordingly. Fillers can be introduced into the sealing layer and / or the protective layer. Suitable fillers are wood fibers, wood dusts, metals, minerals (loam, sand), plastics, cellulose or ashes. About the fillers, a structure can be achieved, which is applied corresponding to the decor, so that filigree reliefs can be generated.
  • In the individual layers on the bottom, the fillers serve, for example, for impact sound insulation.
  • The refinement of the top of the plate can also be made only partially. Preferably, the finishing takes place on a surface of the plate running obliquely with respect to the upper side. For this purpose, several V-joints can be embossed in the top of the plate. After refining, the plate is sawn in the middle along the V-joints so that individual panels are created whose side edges have a chamfer. These chamfers later emphasize the appearance of a joint between individual panels of a floor.
  • Since no paper layers are used, the plates are safe from distortion, which could be caused by the inherent tensile force of the papers. Due to the thin layers short process times can be realized. The fillers introduced into the individual layers on the underside of the plate can be provided for impact sound insulation.
  • Instead of finishing a carrier plate made of HDF or MDF, OSB boards or conventional chipboard with a correspondingly finely scattered cover layer can be used. It is also conceivable to make the sealing layer so thick that unevennesses in the plate (OSB) are compensated.
  • The panels can not only be used as floor panels, but they can also be used in furniture construction.
  • In a wood-based panel, in particular a floor panel consisting of an HDF or MDF support plate, with a top and a bottom, wherein the top has a decor, preferably a wood or tile decor, wherein on the support plate, a sealing layer is applied to the a decor which has heat-resistant colors, preferably made of heat-resistant colors, is printed and wherein the decor is covered with at least one wear protection layer, the sealing layer according to the invention consists of melamine or urea resin.
  • By printing a corresponding decorative layer inexpensive woods can be upgraded. For example, an oak decoration can be printed on a pine veneer and its color highlighted accordingly.
  • The press plate is provided with a relief corresponding to the decor. When pressing the plate depressions are then produced in the protective layer, which correspond for example to a wood grain or to a tile mirror. This adjusts the feel of the surface to a natural surface.
  • According to the invention, the decor is printed directly on the sealing layer. To increase the abrasion resistance, texturing agents or corundum grains can be applied to the decor. The structuring agents or corundum grains may also be embedded in the wear protection layer.
  • The carrier plate can be smoothed on the top and / or bottom, be ground in an advantageous manner.
  • In particular, V-joints running in the protective layer in the longitudinal direction and / or transverse direction of the plate can be embossed. During further processing, panels are then sawn out of the panel by sawing centrally along the V-groove. This will give the panels a chamfered edge.
  • Claims (14)

    1. Process for finishing a wood or wood-based board, in particular an MDF or HDF board with an upper side and an underside, comprising the following steps:
      a) applying a sealing layer of melamine resin or urea resin to the upper side of the board,
      b) printing a decoration, which has heat-resistant colours, preferably consists of heat-resistant colours, onto the sealing layer,
      c) applying a protective layer of melamine resin to the decoration,
      d) pressing the board under the action of temperature until the protective layer and the sealing layer melt and bond to each other with the inclusion of the decoration printed on,
      e) producing depressions in the protective layer during the pressing process by using a press plate which is provided with a relief corresponding to the decoration.
    2. Process according to Claim 1, characterized by the following steps:
      f) applying at least one layer of melamine resin to the underside of the board,
      g) pressing the board under the action of temperature until the layer of melamine resin melts and bonds with the board.
    3. Process according to Claim 1, characterized by the following steps:
      f) applying a sealing layer of melamine resin to the underside of the board,
      g) applying a coloured layer, which has heat-resistant colours, to the sealing layer,
      h) applying a protective layer of melamine resin to the coloured layer,
      i) pressing the board under the action of temperature until the protective layer and the sealing layer melt and bond to each other with the inclusion of the coloured layer.
    4. Process according to Claim 1, characterized in that the printed decoration is a wood grain or a tiled surface, to which the depressions correspond.
    5. Process according to one of Claims 1 to 3, characterized in that a plurality of individual layers are applied for the sealing layer and/or the protective layer and each individual layer dries out before the application of the next.
    6. Process according to Claim 1, characterized in that corundum and/or cellulose are mixed into the protective layer as at least further constituents.
    7. Process according to one or more of the preceding claims, characterized in that at least one filler is put into the sealing layer and/or the protective layer.
    8. Process according to Claim 7, characterized in that in that the filler used is wood fibers, wood dust, metals, mineral substances, plastics, cellulose or ash.
    9. Wooden board comprising a substrate board with an upper side and an underside, the upper side of the substrate board having a sealing layer onto which a decoration, which has heat-resistant colours, preferably consists of heat-resistant colours is printed, and the decoration being covered by at least one protective layer of melamine resin, characterized in that the sealing layer comprises melamine or urea resin and the protective layer has depressions corresponding to the decoration.
    10. Wooden board according to Claim 9, characterized in that the decoration is printed directly onto the sealing layer.
    11. Wooden board according to Claim 9 or 10, characterized in that the protective layer has corundum and cellulose as at least further constituents.
    12. Wooden board according to one of Claims 9 to 11, characterized in that the substrate board consists of OSB material having a fine top layer, of chip, MDF or HDF material.
    13. Wooden board according to one of Claims 9 to 12, characterized in that the substrate board is smoothed and/or ground on the upper side and/or underside.
    14. Wooden board according to one of Claims 9 to 13, characterized in that the depressions correspond to a wood grain or a tiled surface.
    EP09005141A 2003-03-06 2003-09-06 Decorative finishing a composite wooden panel Active EP2105320B1 (en)

    Priority Applications (2)

    Application Number Priority Date Filing Date Title
    DE2003110199 DE10310199B4 (en) 2003-03-06 2003-03-06 Wood fiber board and process for its production
    EP03020230.3A EP1454763B2 (en) 2003-03-06 2003-09-06 Decorative coating of a plate of wooden material

    Related Parent Applications (2)

    Application Number Title Priority Date Filing Date
    EP03020230.3A Division EP1454763B2 (en) 2003-03-06 2003-09-06 Decorative coating of a plate of wooden material
    EP03020230.3A Division-Into EP1454763B2 (en) 2003-03-06 2003-09-06 Decorative coating of a plate of wooden material

    Publications (2)

    Publication Number Publication Date
    EP2105320A1 EP2105320A1 (en) 2009-09-30
    EP2105320B1 true EP2105320B1 (en) 2012-10-17

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    ID=32797890

    Family Applications (2)

    Application Number Title Priority Date Filing Date
    EP09005141A Active EP2105320B1 (en) 2003-03-06 2003-09-06 Decorative finishing a composite wooden panel
    EP03020230.3A Active EP1454763B2 (en) 2003-03-06 2003-09-06 Decorative coating of a plate of wooden material

    Family Applications After (1)

    Application Number Title Priority Date Filing Date
    EP03020230.3A Active EP1454763B2 (en) 2003-03-06 2003-09-06 Decorative coating of a plate of wooden material

    Country Status (5)

    Country Link
    EP (2) EP2105320B1 (en)
    AT (1) AT438519T (en)
    DE (2) DE10310199B4 (en)
    ES (2) ES2394744T3 (en)
    PT (1) PT2105320E (en)

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    CN104760457A (en) * 2015-04-01 2015-07-08 陈国岳 Leather pattern color forming process for engraving plate

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    EP1454763A3 (en) 2005-08-17
    EP1454763B1 (en) 2009-08-05
    ES2394744T3 (en) 2013-02-05
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    DE50311774D1 (en) 2009-09-17
    AT438519T (en) 2009-08-15
    EP1454763A2 (en) 2004-09-08
    DE10310199A1 (en) 2004-09-23
    ES2328236T5 (en) 2016-11-15
    ES2328236T3 (en) 2009-11-11
    EP1454763B2 (en) 2016-06-08
    PT2105320E (en) 2012-12-12
    EP2105320A1 (en) 2009-09-30

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