EP2311616B1 - Vorrichtung und Verfahren zur Oberflächenbehandlung - Google Patents

Vorrichtung und Verfahren zur Oberflächenbehandlung Download PDF

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Publication number
EP2311616B1
EP2311616B1 EP10175982.7A EP10175982A EP2311616B1 EP 2311616 B1 EP2311616 B1 EP 2311616B1 EP 10175982 A EP10175982 A EP 10175982A EP 2311616 B1 EP2311616 B1 EP 2311616B1
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EP
European Patent Office
Prior art keywords
texture
wood
fibre
surface treatment
treatment substance
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
EP10175982.7A
Other languages
English (en)
French (fr)
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EP2311616A3 (de
EP2311616A2 (de
Inventor
Kjell Torland
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.)
Huntonit AS
Original Assignee
Huntonit AS
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Filing date
Publication date
Application filed by Huntonit AS filed Critical Huntonit AS
Publication of EP2311616A2 publication Critical patent/EP2311616A2/de
Publication of EP2311616A3 publication Critical patent/EP2311616A3/de
Application granted granted Critical
Publication of EP2311616B1 publication Critical patent/EP2311616B1/de
Active legal-status Critical Current
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE 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
    • B27N7/00—After-treatment, e.g. reducing swelling or shrinkage, surfacing; Protecting the edges of boards against access of humidity
    • B27N7/005—Coating boards, e.g. with a finishing or decorating layer
    • 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
    • B05D1/40—Distributing applied liquids or other fluent materials by members moving relatively to surface
    • 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
    • B05D5/02—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain a matt or rough surface
    • 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
    • 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
    • B05D1/28—Processes for applying liquids or other fluent materials performed by transfer from the surfaces of elements carrying the liquid or other fluent material, e.g. brushes, pads, rollers
    • 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
    • B05D3/06—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 exposure to radiation
    • B05D3/061—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 exposure to radiation using U.V.
    • B05D3/065—After-treatment

Definitions

  • the present invention relates to an apparatus and a method for the surface treatment of a body. More particularly, it relates to an apparatus and a method for providing a brush-painted texture in a surface treatment substance to a surface of a wood-fibre-based board, the apparatus including: an advancing means to produce relative movement between the wood-fibre-based board and apparatus; at least one applicator which is arranged to apply a surface treatment substance to the wood-fibre-based board ; and at least one curing device to induce or accelerate curing of the surface treatment substance which has been applied to the wood-fibre-based board.
  • the invention is directed towards the surface treatment of plate-form wood-fibre-based boards for use as internal wall or ceiling panelling in buildings.
  • the building boards In the building market there has been, in recent years, a considerable demand for building boards whose surfaces have been treated with paint, for example, so that further surface treatment will not be necessary after mounting.
  • the building boards are typically so-called wood-fibre boards but may also be made of another material.
  • a visual drawback of such painted wood-fibre boards is that the face portions will be too different from the texture that appears naturally when wooden panels are painted with a brush.
  • a person skilled in the art will know that in the industrial production of painted wood-fibre boards the boards are carried through a cure-promoting device immediately after paint has been applied to the surface. In addition to enabling stacking of the boards in height as soon as they come out of the curing device, it is done to effect or accelerate setting of the surface treatment substance before this fills the stripes completely and thereby ruins the desired effect.
  • a cure-promoting means it is normal to use an oven, IR or UV radiation, for example.
  • the stripes are typically provided by means of a grinding means such as grinding paper or another surface-rubbing means, or a milling device.
  • the method is expensive, as it requires grinding machines and considerable amounts of grinding means, such as sand paper. Besides, sand paper will wear, which gives large variations in depths and extents of the stripes.
  • wood-fibre boards it is common for wood-fibre boards to be made with an outer layer which is harder than the core portion of the board. By rubbing or grinding the surface, the outer layer is damaged. This may ruin some of the properties of the board. Besides, a board with a rubbed surface may absorb more surface treatment substance, which will, in turn, require larger consumption of surface treatment substance and thereby lead to increased production costs.
  • the depth of the scratches that must be produced in the surface depends on the end result desired and on how many layers of surface treatment substance are applied. The more layers, the deeper scratches are required.
  • Publication US 5436069 A discloses a process of providing a surfaced composite panel of cellulosic particulates, such as wood flakes.
  • the process involves the application of polymer forming foamable material to at least one of a first and second major surfaces of the panel, contacting said surface with a pressure applying surface to apply pressure thereto, foaming the polymer forming material while pressure is applied and curing the applied foam material to produce a polymeric coating on the panel with a desired surface, which is typically extremely smooth so that the resulting panel is receptive to adhesives for purposes of securing overlaying materials such as vinyl.
  • US 2007/0082180 A1 discloses a system and a method for producing decorative panels having a variegated appearance.
  • the system includes a painting station, a wiping station and a curing station for creating the variegated appearance on the panel.
  • the painting station applies paint onto a front surface of the panel and the wiping station configured for wiping the paint away from the peaks of the panel while avoiding removing the paint in valleys of the panels.
  • the wiper moves laterally across or extends angled with respect to the panel while the panel is advanced through the wiping station in a longitudinal direction before the panel passes to the curing station.
  • the end result aimed at in US 2007/0082180 is a panel having a two-colored variegated appearance approaching that of natural, real wood siding.
  • the invention has for its object to remedy or reduce at least one of the drawbacks of the prior art, or at least to provide a useful alternative to the prior art.
  • an apparatus for providing a brush-painted texture in a surface treatment substance applied to a wood-fibre-based board including: an advancing means to produce relative movement between the wood-fibre-based board and the apparatus; at least one applicator which is arranged to apply a surface treatment substance to the wood-fibre-based board; and at least a curing device to induce or accelerate curing of the surface treatment substance which has been applied to the wood-fibre-based board, the apparatus further including a texture-producing device which is arranged in a portion between the applicator and the curing device to produce a brush-painted texture in the surface treatment substance before this hardens, wherein the texture-producing device includes a plurality of flexible, elongate members.
  • the texture-producing device extends transversely relative to a moving direction of the advancing means producing said relative movement between the wood-fibre-based board and the apparatus, and the distances between the applicator, the texture-producing device and the curing device are adjustable.
  • the desired texture is thereby produced in the surface treatment substance itself, while, at the same time, the body which is being treated has no damage done to its surface.
  • the plurality of flexible, elongate members is preferably mutually independent elements.
  • the texture-producing means may be brought to bear both against smooth board portions and against indentations and elevations at the same time. The entire board portion may thereby appear with a surface treatment substance that has been affected by the texture-producing means.
  • a method for providing a brush-painted texture in a surface treatment substance applied to a surface of a wood-fibre-based board wherein the wood-fibre-based board is carried on a track and the surface treatment substance is applied to wood-fibre-based board by means of an applicator and is then carried into a curing device for inducing or accelerating curing of the surface treatment substance, wherein a texture-producing device includes a plurality of flexible, elongated elements being brought into contact with the surface treatment substance after it has been applied to the wood-fibre-based board, but before the wood-fibre-based board is carried into the curing device.
  • the method comprises arranging the texture-producing device so that it extends transversely across the entire wood-fibre-based board relative to a longitudinal direction of the wood-fibre-based board, and arranging the applicator and the texture-producing device movable so that the distances between the applicator, the texture-producing device and the curing device are adjustable.
  • the reference numeral 1 indicates an apparatus according to the present invention which is arranged for surface treatment of boards 3 which are arranged one after another on an advancing means in the form of a conveyor belt 5.
  • the boards 3 are shown with a planar surface but might just as well be provided with grooves and/or beads to resemble joined wooden panels.
  • the necessary supporting and propelling means of the conveyor belt 5 are not shown but are of a kind known per se.
  • the moving direction of the conveyor belt 5 is shown by arrows V.
  • the individual board 3 is carried between the conveyor belt 5 and an applicator 7 for a surface treatment substance, the applicator 7 being formed, in the embodiment shown, by a roller which extends transversely to the longitudinal direction of the board 3.
  • the surface treatment substance may be applied to the board 3 by means of a spraying plant, not shown.
  • the roller 7 is of such a kind that it moulds to the surface texture of the board 3 in order thus to apply a surface treatment substance to the entire board, including possible grooves.
  • a type of roller that has proved suitable for the purpose is made of so-called "moss rubber” which is relatively porous and flexible.
  • the apparatus 1 may be provided with several rollers (not shown) to enable switching from one colour to another, for example, without unnecessary stops in the production. Of course, with such an arrangement, only one roller will be moved against the board 3 at a time.
  • the surface treatment substance will be referred to as paint, even though other surface treatment substances such as varnish, oil, wax or other suitable substances could also be used. This will be explained in further detail in the discussion of figure 2 .
  • the roller 7 is supplied with paint in a manner known per se, by means of means not shown. However, this will be known to a person skilled in the art.
  • the board 3 is advanced by means of the conveyor belt 5 towards the right in figure 1 , to a brush whose bristles bear against the surface of the board 3 to produce the desired texture 4 (shown in broken lines in figure 1 ) in the paint.
  • the board 3 is advanced into a curing device 11.
  • the texture-producing device 9 extends transversely across the entire board 3 relative to longitudinal direction of the board 3.
  • the texture-producing device 9 is divided into several individual portions. Some or all of the individual portions may have different texture-producing effects. For example, the thickness and/or rigidity between some of the individual portions of the texture-producing device may be different. They may also be arranged to be adjusted individually in order thereby to exert different pressures against the board 3. One and the same board 3 may thereby get different paint textures in its transverse direction.
  • the curing device 11 is of a kind known per se and may be based on heat, like for example, but not limited to, a so-called convection dryer, and/or radiation such as IR or UV light (infrared radiation and ultraviolet radiation, respectively).
  • heat like for example, but not limited to, a so-called convection dryer, and/or radiation such as IR or UV light (infrared radiation and ultraviolet radiation, respectively).
  • radiation such as IR or UV light (infrared radiation and ultraviolet radiation, respectively).
  • the choice of type of curing device depends on the type of surface treatment substance used, among other things.
  • the distances between the roller 7, the texture-producing device 9 and the curing device 11 are arranged to be adjustable. In figure 1 this is shown in principle by the roller 7 and the texture-producing device 9 being attached to respective, movable supporting devices 12. Said adjustment may be necessary to achieve a desired degree of merging of the "tracks" imparted to the paint by the texture-producing device 9 before the paint sets.
  • the distance depends on the rate of advancement of the board 3 through the apparatus 1, on the viscosity of the paint and on the temperatures of the board 3 and the paint.
  • the distance is arranged to be controlled automatically, depending on the rate of advancement of the board 3 through the apparatus 1 and possibly on other parameters such as temperature and paint viscosity.
  • FIG. 2 shows a principle drawing, in a side view, of a production line in which five apparatuses 1 are arranged in series, and in which boards (not specifically shown in figure 2 ) are carried through the apparatuses 1 by means of a conveyor belt 5.
  • a cooling device 13 is arranged in addition behind the fifth and last curing device 11. The purpose of the cooling device 13 is to reduce the heat which has been introduced into the boards through the curing devices.
  • a texture-producing device 9 is placed between each roller 7 and curing device 11. It will be understood, however, that in an alternative embodiment it is conceivable for one or more of the texture-producing devices 9 to be omitted, but there must be at least one. However, trials have surprisingly shown that the best result is achieved by arranging a texture-producing device 9 between each roller 7 and curing device 11.
  • the series of apparatuses 1 that is shown in figure 2 enables the application of five layers of surface treatment substance.
  • the first apparatus 1 in the series could be used to apply a primer to the board; the second, third and fourth apparatuses in the series paints of desired colours, and the fifth and last apparatus 1 in the series a protective varnish.
  • a production line may consist of more or fewer than the five apparatuses 1 that are shown in the exemplary embodiment.
  • the present invention provides an apparatus and a method which possess substantial advantages and solves several of the drawbacks related to the apparatus and method which are used to produce a desired brush-painted texture on a wood-fibre board.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Manufacturing & Machinery (AREA)
  • Forests & Forestry (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating Apparatus (AREA)

Claims (8)

  1. Vorrichtung (1) zum Bereitstellen einer bürsten-gemalten Textur in einer Oberflächenbehandlungssubstanz, welche auf eine Holzfaser-basierte Platte (3) aufgebracht wird, wobei die Vorrichtung (1) umfasst:
    ein Beförderungsmittel (5) zum Erzeugen einer Relativbewegung zwischen der Holzfaser-basierten Platte (3) und der Vorrichtung (1); mindestens einen Applikator (7), welcher angeordnet ist, um eine Oberflächenbehandlungssubstanz auf die Holzfaserplatten (3) aufzutragen; und mindestens eine Aushärtungsvorrichtung (11), um das Aushärten der Oberflächenbehandlungssubstanz, welche auf die Holzfaser-basierte Platte (3) aufgebracht wurde, zu bewirken oder zu beschleunigen,
    wobei die Vorrichtung (1) ferner eine Textur-erzeugende Vorrichtung (9) beinhaltet, welche in einem Abschnitt zwischen dem Applikator (7) und der Aushärtevorrichtung (11) und in einem Abstand von der Aushärtevorrichtung angeordnet ist, um eine bürsten-gemalten Textur (4) in der Oberflächenbehandlungssubstanz zu erzeugen, bevor diese aushärtet, und wobei die Textur-erzeugende Vorrichtung (9) eine Vielzahl von flexiblen, länglichen Elementen beinhaltet, wobei die Textur-erzeugende Vorrichtung (9) sich transversal zu der Bewegungsrichtung des Beförderungsmittels (5), welches die besagte Relativbewegung zwischen der Holzfaser-basierten Platte (3) und der Vorrichtung (1) erzeugt, erstreckt, und wobei die Abstände zwischen dem Applikator (7), der Textur-erzeugenden Vorrichtung (9) und der Aushärtevorrichtung (11) anpassbar sind.
  2. Die Vorrichtung nach Anspruch 1, wobei der Applikator (7) eine Rolle oder eine Sprühvorrichtung beinhaltet.
  3. Die Vorrichtung nach Anspruch 1, wobei die Aushärtevorrichtung (11) durch eine Heizvorrichtung, einer IR-Strahlungsvorrichtung und/oder einer UV-Strahlungsvorrichtung, oder eine Kombination aus diesen, gebildet wird.
  4. Die Vorrichtung nach Anspruch 1, wobei die Elemente Fasern sind.
  5. Vorrichtung nach Anspruch 1 oder 4, wobei die Textur-erzeugende Vorrichtung (9) in mehrere einzelne Abschnitte unterteilt ist.
  6. Die Vorrichtung nach Anspruch 1, wobei die Vorrichtung (1) abwechselnd zwei oder mehr Applikatoren (7) und in Reihe geschaltete Aushärtevorrichtungen (11) beinhaltet, wobei die Textur-erzeugende Vorrichtung (9) mindestens zwischen einem der Applikatoren (7) und der Aushärtevorrichtungen (11) angeordnet ist.
  7. Vorrichtung nach Anspruch 1, worin die Oberflächenbehandlungssubstanz eine Farbe, ein Lack, ein Wachs, ein Öl eine oder eine Kombination ausgewählt aus dieser Gruppe ist.
  8. Verfahren zum Bereitstellen einer bürsten-gemalten Textur in einer Oberflächenbehandlungssubstanz, welche auf eine Holzfaser-basierte Platte (3) aufgebracht wird, wobei die Holzfaser-basierte Platte (3) auf einem Geläuf (5) getragen wird und die Oberflächenbehandlungssubstanz auf die Holzfaser-basierte Platte mittels eines Applikators (7) aufgebracht wird und dann zur Bewirkung oder Beschleunigung des Aushärtens der Oberflächenbehandlungssubstanz in die Aushärtungsvorrichtung (11) getragen wird,
    wobei eine Textur-erzeugende Vorrichtung (9) eine Vielzahl von flexiblen, länglichen Elementen beinhaltet, welche mit der Oberflächenbehandlungssubstanz in Kontakt gebracht wird, nachdem diese auf die Holzfaser-basierte Platte (3) aufgetragen wurde, aber bevor die Holzfaser-basierte Platte (3) in die Aushärtungsvorrichtung (11) getragen wird,
    wobei das Verfahren es beinhaltet, die Textur-erzeugende Vorrichtung (9) so anzuordnen, dass diese sich transversal zu der Bewegungsrichtung der Holzfaser-basierten Platte (3) über die gesamte Holzfaser-basierte Platte (3) erstreckt, und den Applikator (7) und die Textur-erzeugende Vorrichtung (9) beweglich anzuordnen, so dass die Abstände zwischen dem Applikator (7), der Textur-erzeugenden Vorrichtung (9) und der Aushärtevorrichtung (11) anpassbar sind.
EP10175982.7A 2009-09-17 2010-09-09 Vorrichtung und Verfahren zur Oberflächenbehandlung Active EP2311616B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO20093015A NO332255B1 (no) 2009-09-17 2009-09-17 Apparat og fremgangsmate for overflatebehandling av et legeme

Publications (3)

Publication Number Publication Date
EP2311616A2 EP2311616A2 (de) 2011-04-20
EP2311616A3 EP2311616A3 (de) 2014-12-24
EP2311616B1 true EP2311616B1 (de) 2019-05-01

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EP10175982.7A Active EP2311616B1 (de) 2009-09-17 2010-09-09 Vorrichtung und Verfahren zur Oberflächenbehandlung

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EP (1) EP2311616B1 (de)
DK (1) DK2311616T3 (de)
NO (1) NO332255B1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105772316A (zh) * 2016-03-17 2016-07-20 安庆市凌康机电产品设计有限公司 一种压花硅胶的涂布装置
CN113814115B (zh) * 2020-08-14 2023-11-21 常州铭赛机器人科技股份有限公司 多工位作业点胶机及其作业方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070082180A1 (en) * 2005-10-10 2007-04-12 King Daniel W System and method for making decorative building panels having a variegated appearance

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993015888A1 (en) * 1992-02-05 1993-08-19 Weyerhaeuser Company Surfaced cellulosic composite panel and panel forming method

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070082180A1 (en) * 2005-10-10 2007-04-12 King Daniel W System and method for making decorative building panels having a variegated appearance

Also Published As

Publication number Publication date
EP2311616A3 (de) 2014-12-24
DK2311616T3 (da) 2019-07-22
NO20093015A1 (no) 2011-03-18
NO332255B1 (no) 2012-08-06
EP2311616A2 (de) 2011-04-20

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