DE102005046264B4 - Method for producing a panel with a surface coating - Google Patents

Method for producing a panel with a surface coating

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Publication number
DE102005046264B4
DE102005046264B4 DE200510046264 DE102005046264A DE102005046264B4 DE 102005046264 B4 DE102005046264 B4 DE 102005046264B4 DE 200510046264 DE200510046264 DE 200510046264 DE 102005046264 A DE102005046264 A DE 102005046264A DE 102005046264 B4 DE102005046264 B4 DE 102005046264B4
Authority
DE
Germany
Prior art keywords
pore layer
pores
colored
characterized
method according
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
DE200510046264
Other languages
German (de)
Other versions
DE102005046264A1 (en
Inventor
Auf Nichtnennung Antrag
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.)
Swiss Krono Tec AG
Original Assignee
Kronotec AG
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 Kronotec AG filed Critical Kronotec AG
Priority to DE200510046264 priority Critical patent/DE102005046264B4/en
Publication of DE102005046264A1 publication Critical patent/DE102005046264A1/en
Application granted granted Critical
Publication of DE102005046264B4 publication Critical patent/DE102005046264B4/en
Application status is Active legal-status Critical
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/50Multilayers
    • B05D7/52Two layers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00Pretreatment 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
    • B05D3/06Pretreatment 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 exposure to radiation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/06Processes, 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B44DECORATIVE ARTS
    • B44BMACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
    • B44B3/00Artist's machines or apparatus equipped with tools or work holders moving or able to be controlled substantially two- dimensionally for carving, engraving, or guilloching shallow ornamenting or markings
    • B44B3/009Artist's machines or apparatus equipped with tools or work holders moving or able to be controlled substantially two- dimensionally for carving, engraving, or guilloching shallow ornamenting or markings using a computer control means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B44DECORATIVE ARTS
    • B44CPRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C1/00Processes, not specifically provided for elsewhere, for producing decorative surface effects
    • B44C1/22Removing surface-material, e.g. by engraving, by etching
    • B44C1/228Removing surface-material, e.g. by engraving, by etching by laser radiation
    • 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B44DECORATIVE ARTS
    • B44FSPECIAL DESIGNS OR PICTURES
    • B44F9/00Designs imitating natural patterns
    • B44F9/02Designs imitating natural patterns wood grain effects
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B44DECORATIVE ARTS
    • B44FSPECIAL DESIGNS OR PICTURES
    • B44F9/00Designs imitating natural patterns
    • B44F9/04Designs imitating natural patterns of stone surfaces, e.g. marble
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00Processes for applying liquids or other fluent materials
    • B05D1/26Processes 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00Processes for applying liquids or other fluent materials
    • B05D1/40Distributing applied liquids or other fluent materials by members moving relatively to surface
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D5/00Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B05D5/06Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain multicolour or other optical effects
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/50Multilayers
    • B05D7/56Three layers or more

Abstract

Method for producing a panel made of wood-based material with a surface coating applied at least in sections, comprising the steps of - applying an unprocessed pore layer - introducing pores into the pore layer by means of laser processing, characterized in that the regions of the pore layer to be provided with pores are marked for the laser, and that these detectable areas of the pore layer are provided with pores by the laser.

Description

  • The invention relates to a method for producing a panel with a surface coating.
  • Panels made of wood or wood-based material are used to cover ceilings, walls and floors. They usually have on at least one side, often on the top and bottom, depending on the intended use on at least one edge on a surface coating. The surface coating serves either to improve the performance properties and / or the decor.
  • Surface coatings have colored decorative elements as a typical element. As a rule, color layers are used. Colors can be used in uni, in abstract patterns or - which is often preferred - as a replica of natural materials, especially of wood or stone surfaces. In particular, when natural substances are reproduced, but also when designing fantasy patterns, a surface coating with three-dimensional decorative elements is desired in addition to the colored decorative elements. The surface design of wood with pores or of stones with typical surface roughness becomes particularly realistic and thus high quality by the reproduction of these three-dimensional characteristics. Such a high-quality reproduction of natural materials requires the assignment of colored and three-dimensional decorative elements.
  • The production of decors with three-dimensional decorative elements is known per se. A lacquer layer is shaped during or after curing deformations, so that pores are formed. While the introduction of three-dimensional decorative elements technically no problem, it proves difficult in practice, for a high-quality playback z. As required by natural substances match of colored and three-dimensional decorative elements in a surface coating, because three-dimensional decorative elements are usually retrofitted, they are assigned to the previously applied colored decorative elements. The placement of three-dimensional features to matching locations of the colored decorative elements is currently not successful:
    Impregnated with resin and provided with a colored decor papers (decorative papers) are pressed on panels. Three-dimensional decorative elements are based on a predetermined pattern, which is based on the colored decor, z. B. introduced by embossing with a embossing plate in the surface. However, since the dimensions of the papers change due to changes in humidity, the effect of pressure and temperature, size changes of up to 8 mm between the decorative paper which has been pressed on the panel and the surface of the panel coated with colored decorative elements are readily apparent. Furthermore, there are great problems, large format embossing plates purely mechanically accurately to position the printed decorative elements. Thus, the determination of the position of colored decorative elements to which the three-dimensional decorative elements should then be assigned, not in the desired manner possible. A deviation of up to 8 mm does not allow a sufficiently exact match of colored and three-dimensional decorative elements so that a replica of natural materials in high-quality form so close match of colored and three-dimensional decorative elements is not possible.
  • To create patterns in paint surfaces are from the DE 44 19 197 A1 and the DE 41 34 271 C1 General methods are known in which by means of a laser, a layer of a multi-layer paint is removed to represent special decors within the paint layers.
  • From the US 6 633 019 B1 and the JP 56060250 A In addition, methods are known which introduce patterns in wood materials or panel coatings by means of a laser treatment.
  • It is therefore an object of the invention to provide a method for producing a panel, which can be provided in a simple manner reliably with three-dimensional decorative elements or pores. In addition, it is an object of the invention to provide a method for producing a panel, in which a better match of colored and three-dimensional decorative elements is ensured.
  • This object is achieved by a method according to claim 1.
  • In the method according to the invention, a panel is provided at least in sections with a surface coating. Usually, the top of the panel is coated, but also bottom and edges, depending on the application, be coated. For example, desk tops or shelves are usually coated on all sides, floor, wall or Dekkenpaneele contrast often only on the top.
  • According to the invention, the surface coating comprises the application of an unprocessed pore layer. After application and, if appropriate, curing of the pore layer, pores are introduced into the pore layer by means of laser processing. A pore layer is understood as meaning a layer which has a thickness which has at least the depth of the pores. As pores are used in the sense of this invention denotes all conceivable three-dimensional decorative elements, those for the production of fantasy decors, but especially those that serve to imitate the surface of natural substances. It can z. B. be pores that simulate a wooden surface, so relatively small-sized three-dimensional elements. But it can also be pores that emulate stone surfaces, in which case the three-dimensional design can also be larger.
  • The pores are introduced into the pore layer by the action of a laser. The energy to be introduced in each case, which is required to bring in the desired pore, can be determined by a person skilled in the art with just a few tests.
  • The pore layer may be made of any material that can be applied to the panel and that can be laser processed. Particularly suitable are synthetic resins or primers. Synthetic resins are often used to seal the surface of panels, primers are commonly applied to provide a suitable substrate for the application of colored decorative elements. It should be emphasized that, in particular, thermosetting synthetic resins have proven to be suitable in the implementation of the invention, especially the melamine used in many cases can be well processed by means of a laser for the production of three-dimensional decorative elements. The intensity which the laser must expend in each case during the introduction of the pores depends inter alia on the composition and structure of the pore layer. The setting of the laser is determined by experiments, which is readily familiar to the skilled person.
  • In a simple embodiment of the invention, the pores can be introduced into the pore layer without further decorative elements being applied to the surface of the panel. Such a design is conceivable, for example, if panels are not provided with a decor but if only the surface roughness should be adjusted by the introduction of pores, z. B. to achieve a certain skid resistance or grip strength.
  • It is much more common, however, that the pore layer is already provided with a basic decoration, be it that the pore layer is colored, be it that under or on the pore layer colored decorative elements are applied. So z. Example, according to a typical embodiment of the invention, a transparent pore layer a colored decorative layer, which is modeled on a stone or wood surface cover. This decorative layer, which does not yet contain a three-dimensional decorative element, is referred to as a basic decor. The term basic decoration is intended to express that at least one three-dimensional decorative element, but possibly also other colored decorative elements missing until the decor is complete.
  • According to an alternative embodiment of the invention, a decoration is applied after the introduction of the pores in the pore layer or the basic decor is completed. In the simplest case, only in the pores color is registered to make them visually better. But it is also conceivable, just when the pores were placed in a primer that even the entire decor is applied to the pore layer. In this embodiment, therefore, after the introduction of the pores, an application of paint takes place which extends over a larger or the entire surface of the panel and goes well beyond the pores.
  • A further improved embodiment comprises applying a seal to a decor that protects the colored decor applied to the pores or pores over the pores. The application of a sealant, usually a transparent synthetic resin, protects the surface of the coated panel and provides the desired performance characteristics of a panel, such as scratch resistance, temperature resistance, wipe resistance and the like properties. It should be noted as a particular advantage that the subsequently applied seal, such as a UV or radiation-curing paint, the assignment of colored and three-dimensional decorative elements no longer changes. The once achieved advantageous, precise assignment of the various decorative elements remains unchanged.
  • In particular, when floor panels are coated, it proves to be advantageous to introduce corundum or other substances which improve the wear resistance of the coating of the panel, in the pore layer or on the pore layer. It has surprisingly been found that corundum does not interfere with the action of the laser.
  • The introduction of the pores is carried out according to the invention by the action of a laser. It is considered as an independent inventive achievement that a method has been developed that allows a particularly precise insertion of the pores by proposing various alternatives for controlling the laser.
  • According to the invention, it is proposed to mark the pore layer there recognizable for the laser, where pores are to be introduced. The marking required in or on the pore layer can consist in a colored marking which is used for the laser or for a recognition device which contains the Laser controls, easily recognizable. Alternatively, other markings may be applied, such as reflective or fluorescent markings, which are detected by the laser or a recognition device for controlling the laser.
  • This marking can be integrated according to an advantageous development of the method according to the invention readily in a already applied below, in or on the pore layer colored decoration. Even with this variant of the method, it is possible to match three-dimensional decorative elements precisely on colored decorative elements. The markings can be integrated in a particularly simple manner in the colored decorative elements and possibly applied together with them.
  • However, the solution according to the invention has in common that the previous, statically predetermined assignment between colored and three-dimensional decorative elements, which often led to unsatisfactory results, has been resolved and now according to the invention a precise assignment of the two decorative elements is guaranteed.
  • If colored decorative elements are applied after the introduction of the pores, either in the pores or as a planar decoration, the aforementioned control of the laser can also be used according to the invention for controlling the application of paint. Both for the small-area and for the large-area paint application, the control over the markings in or on the pore layer allows a precise assignment of colored and three-dimensional decorative elements on the surface of the panel. This is especially true when ink-jet printing methods are used to apply the colored decorative elements. Printheads of inkjet printers can be easily and precisely controlled in the manner described above, so that here too a very accurate and accurate assignment of colored and three-dimensional decorative elements is possible.
  • Alternatively, the colored decoration may be applied by conventional application methods such as knife coating or rolling. These application methods are particularly suitable if only the pores introduced into the pore layer should be provided with colored decoration. Squeegees or rollers can not be actuated and aligned by the control methods described above, but they are useful tools for introducing color into pores.
  • Details of the invention are explained in more detail below with reference to exemplary embodiments.
  • Example 1 (not part of the invention)
  • A high-density fiberboard (HDF board) is provided in the first step with a thermosetting melamine coating. Part of the melamine coating is a printed carrier paper, whereby a basic decor, but is still specified without three-dimensional wood pores. The decor is - if necessary, including defined output coordinates - not only stored as a printed image on the backing paper but also stored as a digital record.
  • With a laser tool known per se, wood pores are engraved into the surface of the melamine coating on the basis of the digital decor data set. In the next step, with the help of the same digital data set with an inkjet printer, the previously burned in, but visually still poorly perceptible, pores are colored by dark coloring. The result is a decorative wooden surface with a pore structure in the plastic recesses and printed color accentuation coincide exactly.
  • Example 2 (not part of the invention)
  • An HDF board is provided in the first step with a thermosetting primer coating. A pore structure is engraved by a laser. The position of the pores is predetermined by digital data. Subsequently, a complete decor is applied, in particular applied with an ink-jet printer. The pore staining takes place via the same digital coordinates of the digital data set with which the engraved pores have already been applied.
  • Example 3
  • An HDF plate is provided in the first step with a thermosetting melamine coating containing - as in Example 1 - on the printing of a backing paper a ground decor without Holzpore. The basic decor is not stored digitally.
  • As part of the surface of the pore layer - at least in sections - a so-called laser dye is applied. The laser dye can, for. B. be applied in sections there where a pore is to be attached. The laser dye can also cover the surface of the panel as a complete layer. The laser dye is characterized in that it darkens when applying energy by the impact of the laser beam. By introducing a laser dye into the base decor at the sites where pores are to be introduced into the melamine coating, it is achieved that dark spots are stained with this dye when laser light is applied thereto.
  • This embodiment of the invention ensures that each pore generated by the laser is automatically darkened.

Claims (13)

  1. Method for producing a panel of wood-based material with a surface coating applied at least in sections, comprising the steps of - applying an unprocessed pore layer - introducing pores into the pore layer by means of laser processing, characterized in that the regions of the pore layer to be provided with pores are marked for the laser, and that these detectable areas of the pore layer are provided with pores by the laser.
  2. A method according to claim 1, characterized in that the pore layer consists of a synthetic resin or of a primer.
  3. A method according to claim 1, characterized in that the pore layer consists of a thermosetting synthetic resin, in particular melamine.
  4. A method according to claim 1, characterized in that the pore layer is colored.
  5. A method according to claim 1, characterized in that colored decorative elements are applied under or on the pore layer.
  6. A method according to claim 1, characterized in that after the introduction of the pores in the pore layer, a colored decoration is applied.
  7. A method according to claim 5, characterized in that only in the pores, a colored decoration is introduced.
  8. Method according to at least one of claims 6 to 7, characterized in that at least partially a seal is applied to the pore layer and / or on the colored decor applied thereto.
  9. Method according to at least one of the preceding claims, characterized in that corundum is introduced into the pore layer and / or the seal.
  10. A method according to claim 6 or 7, characterized in that the colored decoration on the pore layer, in particular the colored decoration in the pores, by means of doctor blade or roller is applied.
  11. A method according to claim 6 or 7, characterized in that the colored decoration on the pore layer, in particular the colored decoration in the pores, is applied by means which are controlled as a function of the coordinates of the pore layer.
  12. A method according to claim 6 or 7, characterized in that the colored decoration on the pore layer, in particular the colored decoration in the pores, is applied by means which detect points in the pore layer which are to be provided with colored decoration, and in that the means , recognize the points in the pore layer, apply in these places colored decor.
  13. A method according to claim 11 or 12, characterized in that the colored decoration on the pore layer, in particular in the pores, is applied by means of an ink jet printer.
DE200510046264 2005-09-27 2005-09-27 Method for producing a panel with a surface coating Active DE102005046264B4 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE200510046264 DE102005046264B4 (en) 2005-09-27 2005-09-27 Method for producing a panel with a surface coating

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200510046264 DE102005046264B4 (en) 2005-09-27 2005-09-27 Method for producing a panel with a surface coating

Publications (2)

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DE102005046264A1 DE102005046264A1 (en) 2007-04-12
DE102005046264B4 true DE102005046264B4 (en) 2013-10-17

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CN101868332A (en) 2007-11-19 2010-10-20 瓦林格创新比利时股份有限公司 Recycling of laminate floorings
US8419877B2 (en) 2008-04-07 2013-04-16 Ceraloc Innovation Belgium Bvba Wood fibre based panels with a thin surface layer
KR101875588B1 (en) 2010-01-15 2018-07-06 뵈린게 이노베이션 에이비이 Bright colored surface layer
EP2523808A4 (en) 2010-01-15 2017-01-04 Välinge Innovation AB Fibre based panels with a decorative wear resistance surface
EP2523806A4 (en) 2010-01-15 2016-05-11 Välinge Innovation AB Heat and pressure generated design
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US8480841B2 (en) 2010-04-13 2013-07-09 Ceralog Innovation Belgium BVBA Powder overlay
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RU2595661C2 (en) 2011-04-12 2016-08-27 Велинге Инновейшн Аб Method for production of layer
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CN103732407B (en) 2011-08-26 2018-08-24 塞拉洛克创新股份有限公司 Plate painting
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ITUB20152587A1 (en) * 2015-07-29 2017-01-29 Leonardo Panettieri A method for producing in high-speed series' an object having a three-dimensional decorative surface
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