EP2179864B1 - Procédé d'affinement d'une plaque de support - Google Patents

Procédé d'affinement d'une plaque de support Download PDF

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Publication number
EP2179864B1
EP2179864B1 EP08018733A EP08018733A EP2179864B1 EP 2179864 B1 EP2179864 B1 EP 2179864B1 EP 08018733 A EP08018733 A EP 08018733A EP 08018733 A EP08018733 A EP 08018733A EP 2179864 B1 EP2179864 B1 EP 2179864B1
Authority
EP
European Patent Office
Prior art keywords
press
film
layer
texturizing
press platen
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
EP08018733A
Other languages
German (de)
English (en)
Other versions
EP2179864A1 (fr
Inventor
Ingo Lehnhoff
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
Application filed by Flooring Technologies Ltd filed Critical Flooring Technologies Ltd
Priority to EP08018733A priority Critical patent/EP2179864B1/fr
Priority to PL08018733T priority patent/PL2179864T3/pl
Priority to ES08018733T priority patent/ES2394526T3/es
Publication of EP2179864A1 publication Critical patent/EP2179864A1/fr
Application granted granted Critical
Publication of EP2179864B1 publication Critical patent/EP2179864B1/fr
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Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
    • B44B5/00—Machines or apparatus for embossing decorations or marks, e.g. embossing coins
    • B44B5/0052—Machines or apparatus for embossing decorations or marks, e.g. embossing coins by pressing
    • 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
    • B44C5/043—Ornamental plaques, e.g. decorative panels, decorative veneers containing wooden elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44F—SPECIAL DESIGNS OR PICTURES
    • B44F9/00—Designs imitating natural patterns
    • B44F9/02—Designs imitating natural patterns wood grain effects

Definitions

  • the invention relates to a method for refining a support plate, for example a wood or wood-based panel, in particular MDF or HDF board with a top and a bottom, on the surface of the top of which a plurality of layers of a synthetic resin, preferably melamine resin applied and each layer is dried prior to the application of the next layer, wherein between two layers, a color layer is provided to produce a decoration and the dry layer structure between an upper and a lower pressure plate of a pressing device is pressed under the action of heat and pressure and thereby melt the resin layers. Furthermore, the invention relates to a pressing device.
  • a support plate for example a wood or wood-based panel, in particular MDF or HDF board with a top and a bottom
  • a plurality of layers of a synthetic resin, preferably melamine resin applied and each layer is dried prior to the application of the next layer, wherein between two layers, a color layer is provided to produce a decoration and the dry layer structure between an upper and a lower pressure plate of a
  • the method described above is for example from the EP 1 454 763 A2 known.
  • the plates produced by the process are used, for example, for furniture construction. From them, it is also possible to produce panels, in particular floor panels.
  • 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 surface of the support plate is first ground and then applied a primer of one or more melamine resin layers.
  • the desired decor parquet, wood grain, tiles, etc.
  • a functional layer is applied for sealing the top. If the carrier plate subsequently to be further processed to floor panels, wear-resistant particles, such as corundum, are embedded in the functional layer.
  • the layer structure is pressed and in the process a structure (relief) corresponding to the decor is embossed in order to match the visual and haptic impression with the natural material reproduced by the decor.
  • WO 2007/059805 A1 From the WO 2007/059805 A1 is a coating system with flowable coating material for smooth or textured surfaces known.
  • a material web with a structured surface is used.
  • a carrier material On the input side of the coating system, a carrier material is supplied, which is coated with a flowable material.
  • a collecting device Below the material web a collecting device is provided, which is funnel-shaped in cross section together with the material web, so that the flowable material can be applied to the carrier plate. While the carrier plate is transported with the overlying web through the device, the coating material hardens and it forms in its surface, the predetermined structure of the material web.
  • the pressing device is very complex. As a coating material expensive UV coatings must be used.
  • a hot press for surface hardening of wood-based panels known.
  • one or more synthetic resin for example, melamine resin precondensates enhaltende films are applied to the support plate one or both sides and then pressed in the hot press. The resin cures and the film bonds firmly to the carrier plate. Paper webs can be laid over the press plates, by means of which the structure of the paper webs can be transferred to the surface during the pressing of the wood-based board.
  • a structured film provided with depressions and / or elevations is arranged below the upper press plate, which ensures that the molten synthetic resin flows smoothly to the depressions and / or elevations of the texturing film, whereby a.
  • the structurizer film is blown off by means of a pulse-like generated by a pneumatic device overpressure of the press plate.
  • the surface created in this way is characterized by a new visual and haptic impression.
  • the product surfaces are softer or velvety, which is due to the effect of the structurizer film instead of a hard steel pressed sheet. Since the structure is carried out in a short-cycle press by means of the structuring sensor film, the desired structure can be quickly and inexpensively changed or replaced. So it can be made on a pressing device a wide range of products. The fact that the structurizer film is blown off by means of a pulse-like overpressure of the press plate, this is solved quickly and without damage, if it should have been impregnated during pressing with synthetic resin, which then cakes on the underside of the press plate.
  • a water-based lacquer enriched with color pigments is used for the color layer.
  • a counteracting layer is preferably applied to the underside prior to pressing.
  • a liquid melamine resin is applied to the preferably previously ground top side.
  • a primer layer can then be applied to the dried melamine resin layer.
  • a pressing device for pressing and structuring carrier plate provided with a plurality of resin layers with an upper pressure plate and a lower pressure plate is characterized in that a patterning foil provided with depressions and / or elevations is to be arranged below the upper pressure plate.
  • the texturizer film is preferably applied to the press plate.
  • it is preferably fixable to the pressing plate, which can be done for example by suction, electrostatic charging or adhesion.
  • an unwinding device is arranged on one side next to the upper press plate, and a winding device for the texturing film is arranged on the opposite side.
  • the structure matching the printed decor is embossed in each case in the associated plate size.
  • the structure can be repeated on the foil tape.
  • the upper pressure plate has a press plate provided with a plurality of openings, and the openings communicate with a pneumatic device.
  • the pneumatic device preferably generates an overpressure in a pulse-like manner, which blows off the texturizer foil from the press plate.
  • a negative pressure for sucking the pattern generator film can be generated.
  • the structurizer film then completely covers the openings in the press plate.
  • the single FIGURE shows schematically the side view of a short-cycle press (KT-press) with the upper pressure plate 1 and the lower pressure plate 11.
  • the upper pressure plate 1 consists of the upper frame 2, the press pad 3 and the press plate 4.
  • Die on a press table 12th arranged lower press plate 11 consists of the base 13, the press pad 14 and the press plate 15th
  • the lower press plate 11 is rigid. About the impression cylinder 5, the upper pressure plate 1 can be lowered to the lower pressure plate 11 and pressurized.
  • the press plates 1, 11 are heated by thermal oil in a known manner.
  • the openings in the press plate 4 are connected to a both negative pressure and positive pressure generating pneumatic device 50 in connection.
  • an unwinding device 6 and a winding device 10 are arranged opposite one another.
  • the structuring film 8 is unwound from the unwinding device 6 and simultaneously wound up by the winding device 10.
  • About deflection rollers 7, 9, the Strtikturgeber film is guided below the press plate 1.
  • the large-format support plate for example an MDF or HDF plate, is abraded by 0.1 mm.
  • melamine-based liquid resin is applied to the top for priming and dried to the layer 101.
  • a primer is applied and dried.
  • a layer 102 enriched with color pigments, water-based paint is applied and thus generates the decorative layer, which is then dried.
  • at least one functional layer 103 is applied as a seal of the upper side.
  • the functional layer 103 it is possible to integrate the abrasion and / or the scratch-resistance-increasing particles.
  • the functional layer 103 can also be formed antistatic.
  • at least one counter-tensile layer 104 is applied to its underside and dried. Subsequently, the carrier plate 100 is transported into the short-cycle press and placed on the lower press plate 11.
  • the structure of the structure-donor sheet 8 corresponding to the decor of the decoration layer 102 is selected and then pulled under the upper press plate 1 by driving the take-up device 10.
  • the structure sensor film 8 is wound from the unwinding device 6.
  • the structuring film 8 is sucked onto the press plate 4 and then the upper press plate 1 is lowered onto the carrier plate 100. Due to the heat and the pressure, the resin layers melt and the liquid resin runs into the recesses or fills the gaps between the elevations of the structuring film 8, so that after curing of the resin, a structure corresponding to the decoration in the surface of the Carrier plate 100 was generated.

Claims (13)

  1. - Procédé d'ennoblissement d'une plaque de support (100), en particulier une plaque en matériau dérivé du bois ou en bois, sur la surface de la face supérieure duquel on rapporte plusieurs couches (101, 103) de résine synthétique, de préférence en résine de mélamine, et on sèche chaque couche avant de rapporter la couche suivante, une couche colorée (102) étant prévue entre deux couches (101, 103) pour créer un décor et l'assemblage de couches séché étant ensuite pressé sous l'effet de la température et la pression entre une plaque de presse supérieure et une plaque de presse inférieure (1, 11) d'une presse à cycles rapides ce qui fait fondre les couches de résine synthétique (101, 103, 104), caractérisé en ce qu'on agence sous la plaque de presse supérieure (1) un film structurant (8) muni de renfoncements et/ou de rehaussements, et la résine synthétique fondue s'ajuste en coulant aux renfoncements et/ou rehaussements, de façon qu'il se forme une structure après le durcissement de la résine synthétique, et en ce que le film structurant (8) peut être enlevé de la plaque de presse (1) par soufflage, au moyen d'une surpression par impulsion produite par un dispositif pneumatique (50).
  2. - Procédé selon la revendication 1, caractérisé en ce que l'on utilise pour la couche de décor (102) une laque à base d'eau enrichie en pigments de couleur.
  3. - Procédé selon la revendication 1 ou 2, caractérisé en ce qu'avant le pressage, on rapporte sur la face inférieure de la plaque de support (100) au moins une couche de contre-traction (104).
  4. - Procédé selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que l'on ponce la face supérieure avant de rapporter la première couche (101) et on rapporte sur la face supérieure poncée, en tant que première couche (101), de la résine de mélamine fluide.
  5. - Procédé selon la revendication 4, caractérisé en ce que l'on rapporte une couche primaire sur la couche de résine de mélamine (101) séchée.
  6. - Dispositif de presse pour presser et structurer des plaques de support (100) munies de plusieurs couches de résine (101, 103, 104), en particulier des plaques en matériau dérivé du bois ou en bois, comprenant une plaque de presse supérieure (1) et une plaque de presse inférieure (2), un film structurant (8) avec des renfoncements et/ou rehaussements devant être agencé sous la plaque de presse supérieure (1), caractérisé en ce que la plaque de presse supérieure (1) présente une tôle de presse (4) munie de plusieurs ouvertures et les ouvertures sont reliées à un dispositif pneumatique (50), et en ce qu'une surpression peut être produite par le dispositif pneumatique (50) pour enlever par soufflage le film structurant (8) hors de la tôle de presse (4) de la plaque de presse (1).
  7. - Dispositif de presse selon la revendication 6, caractérisé en ce que le film structurant (8) est appliqué sur la plaque de presse (1).
  8. - Dispositif de presse selon la revendication 6 ou 7, caractérisé en ce que le film structurant (8) peut être fixé à la plaque de presse (1).
  9. - Dispositif de presse selon la revendication 8, caractérisé en ce que le film structurant (8) peut être aspiré sur la plaque de presse (1).
  10. - Dispositif de presse selon l'une ou plusieurs des revendications 6 à 9, caractérisé en ce que pour le film structurant (8), un dispositif de déroulement (6) est agencé d'un côté à proximité de la plaque de presse supérieure (1) et un dispositif d'enroulement est agencé du côté opposé de la plaque de presse (1).
  11. - Dispositif de presse selon la revendication 9, caractérisé en ce que le dispositif pneumatique (50) peut produire une dépression pour aspirer le film structurant (8) sur la tôle de presse (4) / la plaque de presse (1).
  12. - Dispositif de presse selon la revendication 6, caractérisé en ce que la surpression peut être produite par impulsion.
  13. - Dispositif de presse selon la revendication 6, caractérisé en ce que les ouvertures dans la tôle de presse (4) peuvent être entièrement recouvertes par le film structurant (8).
EP08018733A 2008-10-27 2008-10-27 Procédé d'affinement d'une plaque de support Active EP2179864B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP08018733A EP2179864B1 (fr) 2008-10-27 2008-10-27 Procédé d'affinement d'une plaque de support
PL08018733T PL2179864T3 (pl) 2008-10-27 2008-10-27 Sposób uszlachetniania płyty nośnej
ES08018733T ES2394526T3 (es) 2008-10-27 2008-10-27 Procedimiento para realizar el acabado de una placa de soporte

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08018733A EP2179864B1 (fr) 2008-10-27 2008-10-27 Procédé d'affinement d'une plaque de support

Publications (2)

Publication Number Publication Date
EP2179864A1 EP2179864A1 (fr) 2010-04-28
EP2179864B1 true EP2179864B1 (fr) 2012-10-24

Family

ID=40679642

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08018733A Active EP2179864B1 (fr) 2008-10-27 2008-10-27 Procédé d'affinement d'une plaque de support

Country Status (3)

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EP (1) EP2179864B1 (fr)
ES (1) ES2394526T3 (fr)
PL (1) PL2179864T3 (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2603414B2 (de) * 1976-01-29 1978-04-13 Becker & Van Huellen Niederrheinische Maschinenfabrik Gmbh & Co, 4150 Krefeld Heißpresse zum Oberflächenvergüten von Holzwerkstoffplatten
DE19751115A1 (de) * 1997-11-18 1999-05-20 Cruciger & Steffens Schreinere Siebdruck-Möbel
US7678425B2 (en) * 2003-03-06 2010-03-16 Flooring Technologies Ltd. Process for finishing a wooden board and wooden board produced by the process
DE10310199B4 (de) 2003-03-06 2007-09-20 Kronotec Ag Holzfaserplatte und Verfahren zu deren Herstellung
EP1951436B1 (fr) 2005-11-24 2009-08-12 S.D. Warren Company, D/B/A Dispositif de revetement comprenant une substance de revetement fluide destinee a des surfaces lisses ou structurees
DE102007016794B4 (de) * 2007-04-05 2015-07-09 Hülsta-Werke Hüls Gmbh & Co. Kg Verfahren zur Herstellung eines flächigen Bauteils und Bogen aus einem Strukturpapier

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Publication number Publication date
ES2394526T3 (es) 2013-02-01
PL2179864T3 (pl) 2013-03-29
EP2179864A1 (fr) 2010-04-28

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