EP2329887B1 - Procédé de revêtement comprenant une substance de revêtement fluide - Google Patents

Procédé de revêtement comprenant une substance de revêtement fluide Download PDF

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Publication number
EP2329887B1
EP2329887B1 EP20110000147 EP11000147A EP2329887B1 EP 2329887 B1 EP2329887 B1 EP 2329887B1 EP 20110000147 EP20110000147 EP 20110000147 EP 11000147 A EP11000147 A EP 11000147A EP 2329887 B1 EP2329887 B1 EP 2329887B1
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EP
European Patent Office
Prior art keywords
layer
plastic material
web
curing
coating
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
EP20110000147
Other languages
German (de)
English (en)
Other versions
EP2329887A1 (fr
Inventor
Dieter DÖHRING
Hans Schäfer
Udo Hanitzsch
Gary P. Blenkhorn
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.)
Lignum Technologies AG
Original Assignee
Kronoplus Technical 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
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Application filed by Kronoplus Technical AG filed Critical Kronoplus Technical AG
Priority to PL11000147T priority Critical patent/PL2329887T3/pl
Priority to EP20110000147 priority patent/EP2329887B1/fr
Publication of EP2329887A1 publication Critical patent/EP2329887A1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • 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
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/14—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a travelling band
    • 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
    • B05D3/067—Curing or cross-linking the coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/50—Multilayers
    • B05D7/52—Two layers
    • B05D7/54—No clear coat specified
    • B05D7/542—No clear coat specified the two layers being cured or baked together
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E04F13/10—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements of wood or with an outer layer of wood
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/02—Flooring or floor layers composed of a number of similar elements
    • E04F15/04—Flooring or floor layers composed of a number of similar elements only of wood or with a top layer of wood, e.g. with wooden or metal connecting members
    • E04F15/045—Layered panels only of wood
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/003—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating incorporating means for heating or cooling the liquid or other fluent material
    • 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
    • B05D2252/00—Sheets
    • B05D2252/04—Sheets of definite length in a continuous process
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31971—Of carbohydrate
    • Y10T428/31989—Of wood

Definitions

  • the invention relates to a process for the coating of boards, in particular wood-based panels for the production of floor panels, me a flowable coating material (s., For example EP-A-0 326 919 , according to the generic term).
  • Laminate panels essentially consist of an approx. 6 to 8 mm thick base plate made of MDF or HDF material, to which a decor paper layer is glued. The decor paper layer is impregnated with a resin and is usually further provided with abrasion-resistant particles.
  • the application of pressure and heat hardens the resin, resulting in an extremely abrasion-resistant and decorative surface.
  • wood-based panels such as MDF or HDF
  • a plastic material ie without the use of decorative paper.
  • the MDF board for example, is sanded off and primed Mistake.
  • a colored decor is printed on this primer, for example a wood decor.
  • a plurality of very thin material layers are applied, wherein the individual material layers are cured in each case before the application of the next layer.
  • the material layers are, for example, a plurality of, essentially transparent lacquer layers of a hardenable plastic.
  • the resulting overall layer thus has a layered structure. Between the individual layers arise interfaces in which no good networking takes place.
  • the individual layers usually have a thickness of 10 to 15 .mu.m and usually 5 to 7 layers are applied one above the other, resulting in a total thickness of the thin-layer system or layer stack of about 50-105 .mu.m.
  • a continuous sheet coating apparatus is disclosed.
  • Several sheets are placed on a conveyor belt, which are fed one at a time, one at a time, to coating stations.
  • a coating station comprises an applicator roll, with which a lacquer is applied to a plate.
  • a post-processing device with which the paint is cured, for example with UV radiation.
  • the applicator roll may include a textured surface to pattern lacquer on the surface of a plate.
  • lacquer is applied in a structured manner to a surface of a plate by means of a jet printing technique, which is especially widespread in inkjet printers. This is followed, in turn, by a post-processing device with which the coating can be cured.
  • a device not belonging to the invention comprises means of transport for the transport of plates.
  • the apparatus comprises a feeding device with which coating material can be brought onto the plate surface. Following the feeding device, means for drying and / or curing the coating material are provided above the plate.
  • this device comprises means for passing a web of material between the transport means for the transport of plates and the means for drying and / or curing.
  • the surface of the coating material can be provided with a structure without having to exert great pressure, since the coating material in this state dried and / or cured. So succeeds the coating of a plate with a textured surface, without this as in the publication DE 20 2004 018 710 U1 known prior art either have to use a press or a complex printing unit. Also, a multi-step coating can thus be uniformly dried and / or cured in one operation. Above all, it is possible that a chemical network extends through the entire structure of the layer, resulting in a particularly stable coating.
  • drying and / or curing under exclusion of air is possible. Drying and / or curing under exclusion of air is frequently desired, for example in order to achieve a particularly high degree of crosslinking, ie a particularly high conversion of double bonds within the paint, in the case of curing of a paint with UV light. In the case of curing with electron beams, an air seal is usually required.
  • the eg, present invention relates to a novel process for coating a wood-based panel, in particular a particleboard, MDF or HDF board, with a flowable plastic material.
  • the method relates to the production of panels, such as the manufacture of floor panels.
  • a thick layer of preferably at least 30 .mu.m of a plastic material is applied to the wood-based panel in a single step.
  • the plastic material is preferably transparent at least after drying or curing.
  • the layer is preferably applied in a single operation in a thickness of 30 to 150 microns, more preferably applied in a thickness of 80 to 110 microns and more preferably in a thickness of about 95 microns.
  • the layer of plastic material is cured.
  • a single thick layer instead of a series of many thin layers has a number of advantages.
  • larger abrasion-resistant particles such as larger corundum particles, provided than is possible with a thin-film system.
  • the individual thin layers only have a thickness of 10 to 15 .mu.m, and which are cured one after the other, in fact only relatively small particles can be used, since the particles are preferably incorporated as far as possible in the layers should be.
  • the flowable plastic material is a polymerizable acrylate system.
  • an acrylate system is meant, for example, a polymerizable mixture of double bond-containing mono-, di- and polyfunctional acrylic acid-based compounds.
  • Typical representatives are for example Dipropylenglycoldiacrylat, 1,6-Hexandioldiacrylat, polyurethane acrylic acid ester, polyester acrylic acid ester as they are available in the production program of the company BASF under the trade name Laromer TM types on the market.
  • the plastic material according to the invention is a polymerizable acrylate system.
  • the plastic material such as the polymerizable acrylate system, a UV-curable plastic.
  • the UV radiation serves to start the polymerization. Since the polymerization can be stopped at any time, it is thus possible in the single thick layer, e.g. May be 95 microns, a Vernetzungsgradienten and thus produce a cure gradients.
  • the curing gradient is generated over a single, over the entire layer thickness occurring polymerization with the highest possible conversion. This is in contrast to painting with many thin films, which are applied layer by layer and then "gelled” by radiation, i. it is prematurely aborted the reaction. Thus, over the entire cross-section of all layers, there is no continuous polymer formation but boundary layers.
  • ⁇ layers are applied wet-on-wet (for example primer, acrylate (roll application), corundum, topcoat application) and polymerized in a single step, preferably by UV excitation.
  • the acrylate layer is cured according to the invention in a single thick layer.
  • the individual layers differ in their function and thus also in the chemical structure:
  • the primer has the task of producing good adhesion between the printing and the plastic layer.
  • the middle layer is flexibly adjusted to reduce internal stresses and a To avoid embrittlement and to absorb impact energy when walking, if the coated board is used as a floor panel, for example.
  • the Toplack Anlagen is modified so that it leads to high hardness and scratch resistance.
  • the polymerization is stirred so that a nearly complete double bond conversion over the entire layer is achieved.
  • the primer is preferably designed so that better adhesion is achieved by greater functionalization of the acrylate mixture.
  • the middle layer has in particular chain growth and only minor crosslinking.
  • the topcoat layer preferably contains a highly crosslinkable acrylate system.
  • abrasion-resistant particles in particular corundum particles
  • corundum particles are introduced into the layer in accordance with the invention. Since the layer is very thick, it is possible to incorporate relatively thick particles which have better abrasion properties than smaller particles.
  • abrasion-resistant particles in particular corundum particles
  • Particular preference is given to using particles in the range from DF 240 to DF 280, ie having particle sizes D50 of 44.5 to 36.5 ⁇ m.
  • relatively small particles such as corundum particles
  • the particle size is usually in the range of DF 320 to DF 500 according to the FEPA specification. That is, the previously usable grain sizes of the abrasion-resistant particles were limited to an average grain size D50 of 29.2 to 12.8 microns.
  • These relatively small particles lead to lower abrasion values with the same additional amount, ie with the same abrasion class, finer particles must be used a larger amount by weight can be used than with larger particles. In addition, finer particles lead to a poorer transparency of the surface and graying phenomena.
  • the introduction of the particles into the layer can be carried out after application of the layer in which the particles are sprinkled, for example, on the not yet cured layer. After the particles have sunk or pressed into the layer, the material is cured so that the particles are firmly entrapped in the layer. Another possibility is to introduce the particles before the application of the layer in the flowable plastic material, for example in the form of a dispersion.
  • a material web having a structured surface is applied to the layer of plastic material.
  • a structure is embossed in the layer of plastic material. Since the layer is still liquid at this time, virtually no pressure needs to be expended.
  • the layer of plastic material is dried and / or cured, whereby the introduced into the layer of plastic material structure is fixed. Thereafter, in a further step, the material web with structured surface can be removed again.
  • a pattern roll is used to emboss a structure in the layer of plastic material. This in turn happens after the application of the plastic material to the plate but before the curing of the plastic material.
  • the layer of plastic material is dried and / or hardened, whereby the structure introduced into the layer of plastic material is fixed. Due to the thickness of the layer according to the invention, structure depths of 0 to 80 ⁇ m are possible. Structural depths of from 20 to 80 ⁇ m and particularly preferably up to about 35 ⁇ m are particularly preferred. In the prior art, in which a layer system was used by individual thin films, it was not possible to produce structure depths of more than 5 to 10 microns. These small structure depths are not sufficient for many purposes. For example, to realize a realistic real wood imitation, deeper structures must be imprinted into the layer.
  • a smooth-surfaced web is applied to the layer of plastic material without exerting much pressure. In this way it is prevented that air gets to the plastic material.
  • the layer of plastic material is dried and / or cured in the absence of air.
  • the material web with a smooth surface is removed again.
  • the material webs used are preferably permeable to UV light. If a UV-curable plastic is used, it is thus possible to cure the plastic, although it is covered by the material web.
  • the supply means comprises a collecting means for the coating material, which is arranged adjacent to the transport means for the transport of the plates.
  • the collecting device further adjoins a roller for transporting the material web.
  • the collecting device is designed so that liquid, located in the catcher coating material flows to the roller. It is thus achieved that, given a sufficiently large filling of the collecting device, liquid coating material can completely coat a material web with a liquid film when a material web is transported over the roller. All in all can be achieved with sufficient supply of liquid coating material so that the liquid coating material completely fills the space between the surface of a plate and the material web located above it. It then gets very reliable no air in the area, a hardening can be carried out so particularly reliable under exclusion of air.
  • relatively thick paint layers having a total thickness of, for example, 80 to 100 ⁇ m in thickness and to uniformly dry and cure.
  • This makes it possible to embed relatively thick abrasion-resistant particles such as corundum with a diameter of up to 100 ⁇ m within the paint. Since the abrasion resistance increases with the diameter of the abrasion-resistant particles, a relatively high abrasion resistance can be achieved. Nevertheless, as the diameter of the abrasion-resistant particles increases, the amount of abrasive material can also be reduced. This achieves both an improvement in abrasion values and an improvement in the transparency of the abrasion-resistant coating.
  • Particle grain sizes of DF 220 to DF 280 FEPA are particularly preferred.
  • the thickness of the layer is preferably 30 to 150 ⁇ m, more preferably 80 to 110 ⁇ m.
  • the means for transporting plates comprise a circulating conveyor belt onto which the plates are deposited for transport.
  • foreign materials are introduced into the layer, for example, interspersed, for example, to achieve an aesthetically pleasing effect.
  • the foreign materials are preferably natural materials such as cork or hemp, but also plastics and metal particles are suitable.
  • the foreign materials can be introduced in this way that they partly protrude out of the layer in relief, or in such a way that they have completely sunk into the layer.
  • the layer is preferably transparent, so that the foreign bodies therein are visible. For example, leaves or tree needles can be inserted into the liquid material layer, which are preferably completely sunk in and surrounded by the layer. Subsequently, the transparent layer is cured.
  • the layer which may be an acrylic resin, for example, and are thus protected from air and weathering, there is no decomposition of the natural substances.
  • the layer which may be an acrylic resin, for example, and are thus protected from air and weathering, there is no decomposition of the natural substances.
  • Such a treated plate, with a transparent hard plastic layer in which foreign materials are introduced can thus have an aesthetically very appealing effect.
  • Other conceivable materials are, for example, leaves, twigs, branches or wool.
  • the introduction of foreign materials is made possible by the relatively large thickness of the layer.
  • the material web is unrolled from a roll, passed over other rollers parallel to the surface of plates, which are transported, and then rolled up again by a roller.
  • an exchange of the material web is sufficient if a surface structure is to be changed or if a structure on the material web has damage, for example due to signs of wear.
  • the use of a material web can also ensure a consistent quality of a generated surface structure, since unlike a roller with a structured surface with the unrolling of the material web, the quality of the surface of the material web is not changed, which creates the structure, In addition, that Structure is generated in the surface of the coating practically without pressure, so that the surface of the material web is subject to practically no signs of wear for this reason.
  • the rollers for the transport of a material web are arranged so that they are similar to the catcher in cross-section a funnel, the supply of coating material to the surface of a plate then takes place finally over a gap, thereby the proper supply of Coating material between the web and surface of the plate to be coated further improved ensured.
  • the width of the aforementioned gap can be changed. This serves to control the amount of coating material which is fed to the surface of a plate. Also, in one embodiment, the gap may be closed so as to control the timing of delivery.
  • FIG. 1 shows a device not belonging to the invention, with which a carrier material 6, for example a chip, MDF or HDF plate can be coated in a continuous process.
  • a carrier material 6 for example a chip, MDF or HDF plate
  • coating materials it is preferred to use UV- or electron beam-crosslinkable, flowable systems with suitable viscosity.
  • a carrier material 6 is supplied and coated with a flowable material 8.
  • the coating takes place via a collecting device 5, which adjoins a roller 4.
  • a web-shaped material namely a UV-transparent and / or electron-permeable and radiation-resistant film 3, is guided over the roller 4.
  • the film has a smooth surface facing the coating material 8 when the coating 8 is to have a smooth surface.
  • the corresponding surface of the film 3 is structured if the coating 8 is to have a structured surface.
  • the web-shaped material or the film 3 is unrolled from a supply roll or supply roll 1 and finally rolled up again on a roll 2. Between the roller 1 and the roller 4, along the transport path for the sheet-like material 3, there are three further relatively small-diameter rollers serving to guide the sheet-like material.
  • the small-diameter feed roller 13 disposed adjacent to the roller 4. causes together with the roller 4 that the web-like material together with the catcher 5 forms a funnel-shaped inlet for coating material 8.
  • the coating material 8, such as a paint is suitably brought between the carrier material 6 and sheet material 3 via this funnel shape ,
  • the funnel-shaped inlet opens into a gap.
  • the gap width can be changed to control the supply of coating material.
  • the roller 4 and the roller 2 there are four further guide rollers of relatively small diameter, which serve to guide the sheet material from the roller 4 to the roller 2, the first guide roller 10 - seen from the roller 4 in the transport direction of the sheet material - causes together with the roller 4 that the web-like material is guided parallel to the surface of the carrier material 6.
  • the film 3 means 7 with which the underlying coating material can be dried and / or cured. These are above all devices for curing with UV light or electron beams.
  • a web-shaped smooth or structured material 3 is aligned at the same time from the supply roll 1 both in the longitudinal direction and in the transverse direction and synchronously with the Carrier material 6 applied by means of the roller 4 and the catcher 5 on the still liquid coating material.
  • the aim of the orientation of the web-like material is to synchronize certain points of the substrate 6 with certain points of the web-like material fitting one above the other.
  • the speed of a carrier material or a plate 6 is measured with measuring devices in one embodiment of the invention Measuring devices are used to determine the speed of the carrier material.
  • the rotational speed of at least one roller or roller is involved, which is involved in the transport of the sheet material.
  • the information thus obtained about the transport speed of each plate 6 and the transport speed of the sheet material are used for the control.
  • the two speeds are thus controlled so that a plate is brought together defined with the web-like material, so as to be able to structure a surface targeted.
  • the sheet-like material for example, optical marks, which are detected by optical sensors.
  • the transport of the sheet material and / or the transport of the plates 6 are controlled so that a plate is coated in dependence on such an optical marking and the coating is structured in dependence on these optical markings.
  • the carrier material with the liquid coating material and the overlying sheet-like material then passes through the curing station 7, in which the liquid coating material 8 is crosslinked and goes into a solid state.
  • the surface structure of the web-like material is fixed and imaged in the hardened layer.
  • the sheet-like material is removed from the cured solid coating material and wound up again into a roll.
  • FIG. 2 shown embodiment provided that a plurality of supply rolls 1 and take-up rolls 2 are present for the web-like material.
  • the supply rolls and the take-up rolls can be endlessly connected to each other during production by a device without stop.
  • connection is made for reasons of practicality, preferably at speeds up to 120 m / min, the respective at rest film receiving station is charged with a roll of web-like material and prepared the automatic connection by a double-sided adhesive tape is glued to the web start.
  • the beginning of the sheet material is inserted into a gap, which serves to connect.
  • the path of the connection is effected automatically by electronic detection of the running meter of the roll, from which web-shaped material is unrolled, or sensory detection of the associated end of a web-shaped material.
  • the running web-like material is stored in a dancer device operating as a web store.
  • the driven roller is reduced to a speed of about 15 m / min.
  • the missing length of the web-like material to the line speed pulls out of the dancer. Accelerate after the connection! the corresponding film roll again up to the maximum speed of, for example, 120 m / min until the dancer roller has returned to its working position.
  • the automatic connection device comprises at least two unwind stations with flap bearings and pneumatic tension shafts.
  • the unwinding is done by a servomotor, means are available to the car Automatically adjust with the films or web-like materials.
  • the actual connecting device comprises four pneumatically operated mangle rolls. There are also two separating knives for cutting off the sheet material after bonding.
  • An automatic braking force regulation of the unwinding rolls is available. This includes dancer rollers, pneumatic proportional linear cylinders with guide and guide rollers and an automatic crack control.
  • the carrier material or a plate 6 is first passed through the two superimposed, rotating rollers 4 and 11 passed through and transported. From here, the carrier material 6 reaches a conveyor belt 1 2, which further transports the carrier material. The web-shaped material or the film 3 and the carrier material 6 are transported at the same speed.
  • the distance between the two rollers 4 and 11 can be changed in order to vary the thickness of the coating can.
  • the height of the guide roller 10 can be changed in order to influence the thickness of the coating can.

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  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating Apparatus (AREA)
  • Laminated Bodies (AREA)
  • Paints Or Removers (AREA)
  • Floor Finish (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)

Claims (13)

  1. Procédé de revêtement d'un panneau en matériau à base de bois, en particulier d'un panneau de particules, en MDF ou en HDF, avec un matériau synthétique fluide, au moins une couche de matériau synthétique fluide étant appliquée sur un panneau en matériau à base de bois, caractérisé en ce que le matériau synthétique est un système acrylate apte à se polymériser et en ce que le procédé comprend les étapes chronologiques suivantes :
    - application du matériau synthétique sous la forme d'une couche unique épaisse d'au moins 30 µm sur un panneau en matériau à base de bois ;
    - incorporation de particules résistantes à l'abrasion, possédant une granulométrie D50 de 36,5 à 63 µm, dans la couche en matériau synthétique, et
    - durcissement de la couche en matériau synthétique, dans une autre étape.
  2. Procédé selon la revendication 1, caractérisé en ce que
    - avant l'étape de durcissement, un lé de matériau à surface structurée est disposé, sans exercer de pression, sur la couche en matériau synthétique afin de pourvoir la couche en matériau synthétique d'une structure ;
    - dans une étape suivante, la couche en matériau synthétique est séchée et/ou durcie, ce qui a pour effet de fixer la structure créée dans la couche en matériau synthétique, et
    - dans une autre étape, le lé de matériau à surface structurée est retiré.
  3. Procédé selon la revendication 1, caractérisé en ce que
    - après application du matériau synthétique et avant le durcissement, une structure est créée dans la couche en matériau synthétique au moyen d'un rouleau structureur afin de pourvoir la couche en matériau synthétique d'une structure ; et
    - dans une étape suivante, la couche en matériau synthétique est séchée et/ou durcie, ce qui a pour effet de fixer la structure créée dans la couche en matériau synthétique.
  4. Procédé selon la revendication 2 ou 3, caractérisé en ce que la structure possède une profondeur allant jusqu'à 80 µm et, de préférence, jusqu'à environ 35 µm.
  5. Procédé selon la revendication 1, caractérisé en ce que
    - avant l'étape de durcissement, un lé de matériau à surface lisse est disposé, sans exercer de pression, sur la couche en matériau synthétique pour empêcher l'air de parvenir jusqu'au matériau synthétique ;
    - dans une étape suivante, la couche en matériau synthétique est séchée et/ou durcie à l'abri de l'air, et
    - dans une autre étape, le lé de matériau à surface lisse est retiré.
  6. Procédé selon la revendication 2 ou 5, caractérisé en ce que le lé de matériau est perméable à la lumière UV.
  7. Procédé selon l'une des revendications 1 à 6, caractérisé en ce que le matériau synthétique est durcissable aux rayons UV.
  8. Procédé selon l'une des revendications 1 à 7, caractérisé en ce que la couche est appliquée en une seule passe avec une épaisseur de 30 à 150 µm et, de préférence, de 80 à 110 µm et, de manière particulièrement préférée, avec une épaisseur d'environ 35 µm.
  9. Procédé selon l'une des revendications 1 à 8, caractérisé en ce que les particules résistantes à l'abrasion possèdent une granulométrie D50 de 36,5 à 44,5 µm et elles sont en particulier des particules de corindon.
  10. Procédé selon l'une des revendications 1 à 9, caractérisé en ce que, avant l'application de la couche en matériau synthétique, des particules résistantes à l'abrasion, en particulier des particules de corindon, possédant une granulométrie D50 de 36,5 à 63 µm et, de préférence, D50 de 36,5 à 44,5 µm sont noyées dans la couche en matériau synthétique.
  11. Procédé selon l'une des revendications 1 à 10, caractérisé en ce que le durcissement du matériau synthétique s'effectue par une polymérisation du matériau synthétique.
  12. Procédé selon l'une des revendications 1 à 11, caractérisé en ce qu'après application de la couche en matériau synthétique, des matériaux étrangers, tels que par exemple de la paille, des aiguilles d'arbres, des copeaux métalliques et similaires, sont introduits dans la couche afin d'obtenir un effet esthétique.
  13. Procédé selon l'une des revendications 1 à 12, caractérisé en ce que le procédé comprend les étapes suivantes :
    a) ponçage de finition du panneau en matériau à base de bois ;
    b) application d'un apprêt ;
    c) application d'une couche de fond ;
    d) impression du décor ;
    e) application du matériau synthétique, à savoir sous la forme d'un système acrylate fluide durcissable aux UV, à raison d'une quantité allant jusqu'à 100 g/m2, de préférence jusqu'à environ 65 g/m2 ;
    f) épandage de particules de corindon à raison, de préférence, d'un maximum de 70 g/m2, en particulier de préférence d'environ 45 g/m2 ;
    g) application d'un vernis de finition ; et
    h) durcissement à coeur du matériau synthétique, à savoir au moyen d'un rayonnement UV.
EP20110000147 2005-11-24 2006-11-23 Procédé de revêtement comprenant une substance de revêtement fluide Active EP2329887B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL11000147T PL2329887T3 (pl) 2005-11-24 2006-11-23 Urządzenie do powlekania płynnym materiałem powłoki
EP20110000147 EP2329887B1 (fr) 2005-11-24 2006-11-23 Procédé de revêtement comprenant une substance de revêtement fluide

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
PCT/EP2005/056191 WO2007059805A1 (fr) 2005-11-24 2005-11-24 Dispositif de revetement comprenant une substance de revetement fluide destinee a des surfaces lisses ou structurees
EP06818767.3A EP2019735B2 (fr) 2005-11-24 2006-11-23 Procede de revetement comprenant une substance de revetement fluide
EP20110000147 EP2329887B1 (fr) 2005-11-24 2006-11-23 Procédé de revêtement comprenant une substance de revêtement fluide

Related Parent Applications (3)

Application Number Title Priority Date Filing Date
EP06818767.3A Division-Into EP2019735B2 (fr) 2005-11-24 2006-11-23 Procede de revetement comprenant une substance de revetement fluide
EP06818767.3A Division EP2019735B2 (fr) 2005-11-24 2006-11-23 Procede de revetement comprenant une substance de revetement fluide
EP06818767.3 Division 2006-11-23

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EP2329887A1 EP2329887A1 (fr) 2011-06-08
EP2329887B1 true EP2329887B1 (fr) 2012-08-22

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EP05823515A Active EP1951436B1 (fr) 2005-11-24 2005-11-24 Dispositif de revetement comprenant une substance de revetement fluide destinee a des surfaces lisses ou structurees
EP20110000147 Active EP2329887B1 (fr) 2005-11-24 2006-11-23 Procédé de revêtement comprenant une substance de revêtement fluide
EP06818767.3A Active EP2019735B2 (fr) 2005-11-24 2006-11-23 Procede de revetement comprenant une substance de revetement fluide

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EP (3) EP1951436B1 (fr)
CN (2) CN101484247A (fr)
AT (2) ATE439193T1 (fr)
DE (2) DE502005007914D1 (fr)
ES (2) ES2393959T3 (fr)
MX (2) MX2009005425A (fr)
NO (1) NO20092364L (fr)
PL (3) PL1951436T3 (fr)
PT (1) PT2329887E (fr)
RU (3) RU2419495C2 (fr)
WO (2) WO2007059805A1 (fr)

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MX2009005477A (es) 2009-10-26
EP2019735B2 (fr) 2016-01-27
US8191500B2 (en) 2012-06-05
RU2009123140A (ru) 2010-12-27
EP1951436A1 (fr) 2008-08-06
EP2019735B1 (fr) 2011-01-12
RU2009123405A (ru) 2010-12-27
RU2419495C2 (ru) 2011-05-27
DE502006008747D1 (de) 2011-02-24
NO20092364L (no) 2009-08-19
US10406558B2 (en) 2019-09-10
ATE494961T1 (de) 2011-01-15
MX2009005425A (es) 2009-07-30
PT2329887E (pt) 2012-10-26
WO2007059805A1 (fr) 2007-05-31
CN101484247A (zh) 2009-07-15
WO2007059967A1 (fr) 2007-05-31
US20160129473A1 (en) 2016-05-12
ATE439193T1 (de) 2009-08-15
US8865267B2 (en) 2014-10-21
RU2456090C2 (ru) 2012-07-20
PL2019735T3 (pl) 2011-06-30
US20100258051A1 (en) 2010-10-14
DE502005007914D1 (de) 2009-09-24
CN101495243A (zh) 2009-07-29
EP1951436B1 (fr) 2009-08-12
ES2393959T3 (es) 2013-01-02
ES2361372T3 (es) 2011-06-16
EP2019735A1 (fr) 2009-02-04
CN101495243B (zh) 2013-08-21
PL1951436T3 (pl) 2010-01-29
US20100098963A1 (en) 2010-04-22
US20100212818A1 (en) 2010-08-26
US20130064988A1 (en) 2013-03-14
RU2008120139A (ru) 2009-12-27
PL2329887T3 (pl) 2013-01-31
RU2426604C2 (ru) 2011-08-20
PL2019735T5 (pl) 2016-07-29
EP2329887A1 (fr) 2011-06-08

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