EP3246175B1 - Procédé de fabrication d'une plaque en matériau de type bois et ligne de production pour celle-ci - Google Patents

Procédé de fabrication d'une plaque en matériau de type bois et ligne de production pour celle-ci Download PDF

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Publication number
EP3246175B1
EP3246175B1 EP16170640.3A EP16170640A EP3246175B1 EP 3246175 B1 EP3246175 B1 EP 3246175B1 EP 16170640 A EP16170640 A EP 16170640A EP 3246175 B1 EP3246175 B1 EP 3246175B1
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EP
European Patent Office
Prior art keywords
resin layer
upper side
wood material
underside
material board
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
EP16170640.3A
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German (de)
English (en)
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EP3246175A1 (fr
Inventor
Norbert Dr. Kalwa
Ingo Lehnhoff
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Flooring Technologies Ltd
Original Assignee
Flooring Technologies Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to ES16170640.3T priority Critical patent/ES2686972T3/es
Application filed by Flooring Technologies Ltd filed Critical Flooring Technologies Ltd
Priority to EP16170640.3A priority patent/EP3246175B1/fr
Priority to PT16170640T priority patent/PT3246175T/pt
Priority to PL16170640T priority patent/PL3246175T3/pl
Priority to PCT/EP2017/060710 priority patent/WO2017198474A1/fr
Priority to RU2018138803A priority patent/RU2716188C1/ru
Priority to CN202111025962.9A priority patent/CN113815343A/zh
Priority to CN201780030964.2A priority patent/CN109153283A/zh
Priority to PL17722725.3T priority patent/PL3458281T3/pl
Priority to UAA201811307A priority patent/UA123788C2/uk
Priority to EP17722725.3A priority patent/EP3458281B1/fr
Priority to US16/099,547 priority patent/US11192398B2/en
Publication of EP3246175A1 publication Critical patent/EP3246175A1/fr
Application granted granted Critical
Publication of EP3246175B1 publication Critical patent/EP3246175B1/fr
Priority to US17/525,088 priority patent/US11884097B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C5/00—Processes for producing special ornamental bodies
    • B44C5/04—Ornamental plaques, e.g. decorative panels, decorative veneers
    • B44C5/0469—Ornamental plaques, e.g. decorative panels, decorative veneers comprising a decorative sheet and a core formed by one or more resin impregnated sheets of paper
    • B44C5/0476—Ornamental plaques, e.g. decorative panels, decorative veneers comprising a decorative sheet and a core formed by one or more resin impregnated sheets of paper with abrasion resistant properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C5/00—Processes for producing special ornamental bodies
    • B44C5/04—Ornamental plaques, e.g. decorative panels, decorative veneers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C5/00—Processes for producing special ornamental bodies
    • B44C5/04—Ornamental plaques, e.g. decorative panels, decorative veneers
    • B44C5/0469—Ornamental plaques, e.g. decorative panels, decorative veneers comprising a decorative sheet and a core formed by one or more resin impregnated sheets of paper
    • B44C5/0492—Ornamental plaques, e.g. decorative panels, decorative veneers comprising a decorative sheet and a core formed by one or more resin impregnated sheets of paper containing wooden elements

Definitions

  • the present invention relates to a method for producing an abrasion-resistant wood-based panel according to the preamble of claim 1, a production line for carrying out this method according to claim 12 and a wood-based panel according to claim 14.
  • a variety of products or product surfaces which are subject to mechanical wear and tear must be protected by the application of wear-resistant coatings, from premature damage or destruction by wear. These products may, for. B. to furniture, interior panels, floors, etc. act. Depending on the frequency and intensity of the load, different protective measures have to be applied so that the user can be guaranteed the longest possible service life.
  • thermosetting resins papers that are pressed in so-called short-cycle presses on the wood material carrier used.
  • thermosetting resin melamine-formaldehyde resin is very often used.
  • overlay papers As a protection for the decorative surfaces so-called overlay papers have been used for a long time, which are thin, ⁇ -cellulose-containing papers. These have after impregnation with melamine-formaldehyde resins and Mitverpressung on the decorative papers a high transparency, so that the brilliance of the decor is not or only slightly affected.
  • corundum-containing formulations cause in the further process step of the compression is the sheet metal wear, which is the higher the more corundum in g per square meter are applied and the worse this corundum is covered by corundum-free resin layers. For this reason alone, a required value in the behavior against abrasion should be achieved with as little as possible corundum. Of course, higher corundum consumption also means higher costs and unnecessary consumption of resources.
  • WO 2011/076305 A1 discloses a method and a production line for producing a wood-based panel having a top-side decorative layer and three top and bottom resin layers, the first top-layer resin containing abrasion-resistant particles and the third resin layer containing glass spheres.
  • CA 2 283 835 A1 discloses a method of spreading abrasion-resistant particles onto a wet resin layer.
  • the present invention is therefore based on the technical task, in addition to the safe achievement of high abrasion values, in particular the abrasion classes AC4 to AC6 with simultaneously low pressure plate wear. This should be achieved especially for a process in which printed plates in a variety of formats should be processed. If possible, a process simplification and at least a cost neutrality should be achieved.
  • the disadvantages already discussed should, if possible, no longer occur through a new process. It should also enable effective quality control that provides timely information about the current process.
  • a first resin layer in particular in the form of a first thermosetting resin layer, such as a melamine-formaldehyde resin layer, is applied to the decorative layer (pretreated or not pretreated) of the wood-based panel.
  • a first thermosetting resin layer such as a melamine-formaldehyde resin layer
  • the abrasion-resistant particles are sprinkled evenly onto the wet or still liquid first resin layer on top of the wood-based panel using a suitable scattering device. Because the first Resin layer is still liquid at the time of scattering, the abrasion-resistant particles can sink into the resin layer. Only after the abrasion-resistant particles have been sprinkled onto the first resin layer is a drying step carried out, for example, using a circulating-air dryer, whereby the attrition-resistant particles in the at least one first resin layer are immobilized.
  • abrasion-resistant material such as corundum
  • the layer of abrasion-resistant material can be significantly better sealed off with subsequent resin layers against the press plate. This reduces sheet metal wear. This is also achieved by the lower application rate needed to achieve a certain abrasion resistance.
  • the present method it is possible to reduce the consumption of abrasion-resistant material, to reduce equipment wear, e.g. Wear of the press plate in the press or the resin feed lines is reduced, the application of abrasion-resistant material to the wood-based panel is more uniform, the transparency is improved. Overall, the process costs are reduced due to reduced material and maintenance costs. In addition, the quantity determination of the applied abrasion-resistant material and thus also the quality control is simplified, as explained in more detail below.
  • the amount of the first resin layer applied to the upper side of the wood-based panel may be between 50-100 g / m 2 , preferably 60-80 g / m 2 , particularly preferably 70 g / m 2 .
  • the amount of the first resin layer applied to the underside of the wood-based panel may be between 50-100 g / m 2 , preferably 60-80 g / m 2 , particularly preferably 60 g / m 2 .
  • the first lower resin layer eg brownish
  • the first lower resin layer is colored to simulate a counter-pull.
  • the solid content of the resin used for the first resin layer is 50-70% by weight, preferably 50-60% by weight, more preferably 55% by weight for both the top and the bottom.
  • the first resin layer is preferably applied parallel or simultaneously to the top and bottom of the wood-based panel in at least one double application device (roller application unit).
  • the applied on the bottom resin layers act in return.
  • the counter-coating applied to the underside corresponds in layer construction and the respective layer thickness approximately to the layer sequence applied on the upper side with the difference of the abrasion-resistant particles and glass spheres, as explained in detail below.
  • the abrasion-resistant particles used to increase the wear resistance preferably comprise corundum (aluminum oxides), boron carbides, silicon dioxides, silicon carbides, the use of corundum being particularly preferred.
  • the amount of scattered abrasion-resistant particles is 10 to 50 g / m 2 , preferably 10 to 30 g / m 2 , particularly preferably 15 to 25 g / m 2 .
  • 14 g / m 2 or 23 g / m 2 of abrasion-resistant particles can be scattered.
  • the determination of the applied amount of abrasion resistant material on the wood panel can be made in a simple and accurate manner. This can be done by simply placing one or more shallow trays beneath the spreader or spreader. Subsequently, the spreader is run for a certain defined period of time, the amount of abrasion resistant material collected in the trays is balanced and the balanced amount of abrasion resistant material is divided by the plant feed. This can z. B. the deviation between left - center - be determined right, the stray inaccuracy of the scattering device should be at +/- 1 g / m 2 in width.
  • the amount of the second resin layer applied to the upper side of the wood-based panel may be between 10-50 g / m 2 , preferably 20-30 g / m 2 , particularly preferably 25 g / m 2 .
  • the amount of the second resin layer applied to the underside of the wood-based panel may be between 30-80 g / m 2 , preferably 40-60 g / m 2 , particularly preferably 50 g / m 2 .
  • the solid content of the resin used for the second resin layer is 50-70% by weight, preferably 50-60% by weight, more preferably 55% by weight for both the top and the bottom.
  • at least a third resin layer is applied to the top and bottom of the wood-based panel, i. applied to the respective second (dried) resin layer.
  • the amount of the third resin layer applied to the upper side of the wood-based panel may be between 10-40 g / m 2 , preferably 15-30 g / m 2 , particularly preferably 20 g / m 2 , the solids content being between 50-80% by weight, preferably 60-70% by weight, particularly preferably 60-65% by weight, for example at 61.5% by weight.
  • the resin to be applied as the third resin layer on top of the wood-based panel contains glass beads, the glass beads preferably acting as spacers.
  • the glass beads preferably used have a diameter of 50-100 microns, preferably from 60-80 microns.
  • the application amount of the glass beads, when applied together with the third resin layer is 1-5 g / m 2 , preferably 2-4 g / m 2 , particularly preferably 3 g / m 2 .
  • the glass beads can be sprinkled onto the applied on the top of the wood-based panel third resin layer.
  • the application amount of the glass beads is 5-10 g / m 2 , preferably 6-8 g / m 2 , particularly preferably 6 g / m 2 .
  • the amount of the third resin layer applied to the underside of the wood-based panel may be between 20-70 g / m 2 , preferably 30-50 g / m 2 , particularly preferably 40 g / m 2 at a solids content of 50-70% by weight, preferably 50-70% by weight. 60% by weight, particularly preferably 55% by weight.
  • the third resin layer applied in each case on the upper side and lower side of the wood-based panel is dried in at least one drying device. Following the drying process for the third resin layer, according to the invention at least one fourth resin layer is applied to the upper side and the lower side of the wood-based panel, ie to the respective third resin layer.
  • the amount of the fourth resin layer applied to the upper side of the wood-based panel may be between 10-40 g / m 2 , preferably 15-30 g / m 2 , particularly preferably 20 g / m 2 at a solids content of 50-80% by weight, preferably 60-80% by weight. 70% by weight, particularly preferably 60-65% by weight, for example 61.6% by weight.
  • the resin to be applied as the fourth resin layer on top of the wood-based panel contains glass beads and / or fibers, in particular wood fibers or cellulose fibers.
  • the application amount of glass beads is 1-5 g / m 2 , preferably 2-4 g / m 2 , particularly preferably 3 g / m 2 .
  • the application amount of the fibers, such as cellulose fibers, when applied together with the fourth resin layer, is between 0.1-0.5 g / m 2 , preferably 0.2-0.4 g / m 2 , particularly preferably 0 , 25 gsm.
  • the addition of glass beads and / or fibers such as cellulose fibers to the uppermost fourth layer contributes to the wear resistance of the wood-based panel.
  • the amount of the fourth resin layer applied to the underside of the wood-based panel may be between 10-60 g / m 2 , preferably 20-50 g / m 2 , particularly preferably 30 g / m 2 at a solids content of 50-70% by weight, preferably 50-70% by weight. 60% by weight, particularly preferably 55% by weight.
  • the fourth resin layer which is applied on the upper side and lower side of the wood-based panel, is finally dried in at least one further drying device.
  • the drying of the respective resin layers is preferably carried out to a residual moisture of 6-9% by weight, for example in a circulating air dryer.
  • the layer structure is compressed under pressure and temperature in a short-cycle press at temperatures between 150 and 250 ° C., preferably between 180 and 230 ° C., particularly preferably at 200 ° C. and a pressure between 100 and 1000 N / cm 2 , preferably 300 and 700 N / cm 2 , particularly preferably between 400 and 600 N / cm 2 .
  • a wood-based panel or as a support plate medium density fiber (MDF), high density fiber (HDF), coarse chip (OSB) or plywood, a cement fiber board and / or gypsum fiber board, a wood-plastic plate, in particular a Wood Plastic Composite (WPC) plate used.
  • MDF medium density fiber
  • HDF high density fiber
  • OSB coarse chip
  • WPC Wood Plastic Composite
  • the above-mentioned decorative layer can be applied by direct printing.
  • direct printing the application of a water-based, pigmented ink by gravure or digital printing, wherein the water-based pigmented ink is applied in more than one layer, e.g. in the form of two to ten layers, preferably three to eight layers.
  • the application of the at least one decorative layer takes place as mentioned by means of an analogue gravure printing and / or a digital printing process.
  • the gravure printing process is a printing technique in which the elements to be imaged are present as depressions of a printing form, which is inked before printing.
  • the ink is located primarily in the recesses and is due to the pressure of the printing plate and adhesive forces on the object to be printed, such as. a wood fiber support plate, transferred.
  • digital printing the print image is transferred directly from a computer to a printing press, such as a press. transmit a laser printer or inkjet printer. This eliminates the use of a static printing form.
  • Both methods allow the use of aqueous inks and inks or UV-based colorants. It is also conceivable to combine the mentioned printing techniques from gravure and digital printing. A suitable combination of the printing techniques can be done either directly on the support plate or the layer to be printed or even before printing by adjusting the electronic records used.
  • At least one primer layer is arranged between the wood-based material board or carrier plate and the at least one decorative layer.
  • the primer layer preferably used here comprises a composition of casein as binder and inorganic pigments, in particular inorganic color pigments.
  • color pigments white pigments such as titanium dioxide can be used in the primer layer, or else further color pigments, such as calcium carbonate, barium sulfate or barium carbonate.
  • the primer may contain water as a solvent in addition to the color pigments and casein. It is likewise preferred if the applied pigmented basecoat comprises at least one, preferably at least two, more preferably at least four, successively applied layers or jobs, the application quantity between the layers or applications being the same or different.
  • the present method thus makes it possible to produce an abrasion-resistant wood-based panel with at least one decorative layer on the upper side, at least one first resin layer on the upper side and underside, at least one layer of abrasion-resistant particles on and / or in the first resin layer on the upper side, and at least one second Resin layer on the top and bottom of the wood-based panel.
  • at least a third and fourth resin layer are provided on the upper side and lower side of the wood-based panel, glass balls or glass beads and / or fibers, in particular cellulose fibers, being contained in the third and fourth resin layer provided on the upper side of the wood-based panel.
  • the present method makes it possible to produce an abrasion-resistant wood-based panel with the following layer structure (seen from the bottom upwards): Backing of four resin layers - backing plate - primer layer - print decor layer - first resin layer - layer of abrasion-resistant particles - second resin layer - third resin layer with glass beads - fourth resin layer with glass beads and / or cellulose fibers.
  • the spreader or scattering device is therefore installed in a production line in which aqueous resins can be applied to primed and printed plates via several roller applicators. At the beginning of the process, a resin coating is applied to individual plates, into which the abrasion-resistant material such as corundum is then sprinkled with the spreader.
  • the spreader provided in the present production line is suitable for spreading powder, granules, fibers and comprises an oscillating brush system.
  • the spreader consists essentially of a storage hopper, a rotating, structured roller and a scraper.
  • the order quantity of abrasion-resistant material is determined by the rotational speed of the roller.
  • the at least one scattering device is surrounded by at least one cabin provided with at least one means for removing dusts occurring in the cabin.
  • the means for removing the dust may be in the form of a suction device or as a device for blowing in air.
  • the injection of air can be achieved through nozzles installed at the plate inlet and outlet, which inject air into the cabin. In addition, these can prevent air movements from creating an inhomogeneous curtain of abrasion-resistant material.
  • the removal of the dust from abrasion-resistant material from the environment of the spreader is advantageous because in addition to the apparent health burden for working on the production line workers of particulate matter from abrasion-resistant particles deposits on other parts of the production line and leads to increased wear of the same.
  • the arrangement of the scattering device in a cabin therefore not only serves to reduce the health dust load of the environment of the production line but also prevents premature wear.
  • the scattering device is preferably controlled by a light barrier, the light barrier being arranged in the processing direction in front of the roller (scattering roller) provided below the scattering device.
  • the control of the spreader by a Photoelectric sensor makes sense that between the individual wood-based panels more or less large gaps are. This starts the scattering process as soon as a plate is in front of the scattering roller.
  • At least one funnel for collecting excess abrasion-resistant particles is provided in front of the scattering roller ,
  • the hopper is coupled to at least one conveyor and a screening device, wherein the collected in the hopper excess abrasion resistant material is transported via the conveyor to the screening device.
  • the screen meshes of the screening device correspond to the largest grain used of the abrasion resistant particulate material (i.e., about 80-100 ⁇ m).
  • debris and clumped material such as clumped resin or clumped abrasion resistant material
  • the sieved abrasion resistant material can be recycled to the spreader.
  • the in the FIG. 1 schematically illustrated production line comprises four double application units 1, 2, 3, 4 for simultaneous application of the respective resin layer on the top and bottom of the individual printed material plates eg of printed HDF plates and four arranged in the processing direction behind the double application units convection dryer 1a, 2a, 3a , 4a.
  • a first scattering device 10 is also provided for uniformly spreading the abrasion-resistant material, such as corundum, onto the first resin layer on top of the HDF plate. The drying of the first resin layer then takes place in the first convection dryer 1a.
  • the third double applicator 3 for applying the third resin layer may be followed by a further diffuser 20 for applying glass beads to the third resin layer, followed by a third convection dryer 3a for drying the third resin layer.
  • the diffuser 20 for the glass beads is optional.
  • the glass beads are applied according to the invention together with the third resin layer.
  • the fourth resin layer which in the case of the fourth resin layer on the upper side, e.g. Cellulose fibers may contain, in a fourth Doppelspeakingswerk 4 and drying in a fourth convection dryer 4a
  • the layer structure is pressed in a short-cycle press 5. The pressed plates are cooled and stored.
  • a stack of printed HDF (dark wood decor) is separated in front of the production line and transported through the line at a speed of 28 m / min.
  • a first roller application unit about 70 g of melamine resin fl. (Solids content: 55% by weight) containing the usual auxiliaries (hardener, wetting agent, etc.) are applied to the plate surface. On the underside of the plate, a melamine resin is also applied with the first roller application unit (application rate: 60 g resin fl. / M 2 , solids content: about 55% by weight).
  • corundum / m 2 (F 200) are sprinkled onto the surface with a spreader. By a distance of about 5 m to the dryer, the corundum is allowed to sink into the melamine resin. Then the plate passes through a circulating air dryer. Thereafter, a melamine resin layer (solid content: 55% by weight) is applied in an amount of 25 g / m 2 . These also contain the usual auxiliaries. On the underside of the plate, a melamine resin is also applied with a roller application unit (application rate: 50 g of resin fl./m 2 , solids content: about 55% by weight). Again, the plate is dried in a circulating air dryer.
  • a melamine resin is applied to the plate surface, which additionally contains glass beads. These have a diameter of 60 - 80 microns.
  • the application rate of the resin is about 20 g melamine resin fl./m 2 (solids content: 61.5% by weight).
  • the formulation also contains a release agent.
  • the order quantity of glass beads is about 3 g / m 2 .
  • a melamine resin is also applied with a roller application unit (application rate: 40 g resin fl. / M 2 , solids content: about 55% by weight).
  • the plate is again dried in a circulating air dryer and then coated again with a melamine resin containing glass beads.
  • cellulose Vivapur 302
  • melamine resin fl./m 2 solids content: 61.6% by weight
  • glass beads and 0.25 g of cellulose / m 2 are applied.
  • the formulas also contain a release agent.
  • a melamine resin is also applied with a roller application unit (application rate: 30 g of resin fl. / M 2 , solids content: about 55% by weight).
  • the resin is again dried in a circulating air dryer and then the plate is pressed in a short-cycle press at 200 ° C and a pressure of 400 N / cm 2 .
  • the pressing time was 10 seconds.
  • the structural element used was a press plate with a wood structure.
  • a stack of printed HDF (dark wood decor) is separated in front of the production line and transported through the line at a speed of 28 m / min.
  • a first roller application unit about 70 g of melamine resin fl. (Solids content: 55% by weight) containing the usual auxiliaries (hardener, wetting agent, etc.) are applied to the plate surface. On the underside of the plate, a melamine resin is also applied with a roller application unit (application rate: 60 g resin fl. / M 2 , solids content: about 55% by weight).
  • a second melamine resin layer (solid content: 55% by weight) is applied in an amount of 25 g / m 2 . These also contain the usual auxiliaries.
  • a second melamine resin is also applied with a roller application unit (application rate: 50 g resin fl. / M 2 , solids content: about 55% by weight). Again, the plate is dried in a circulating air dryer.
  • a third melamine resin is applied again with a roll aggregate.
  • the application rate of the resin is about 20 g melamine resin fl./m 2 (solids content: 61.5% by weight).
  • the formulation also contains a release agent.
  • a third melamine resin is also applied to the underside of the plate with a roller application unit (application rate: 40 g of resin fl. / M 2 , solids content: about 55% by weight). Thereafter, about 6 g of glass balls / m 2 are sprinkled with a scattering unit. These had a diameter of 60-80 microns.
  • the plate is again dried in a circulating air dryer and then coated again with a fourth melamine resin containing cellulose (Vivapur 302).
  • a fourth melamine resin containing cellulose (Vivapur 302).
  • about 20 g of melamine resin fl./m 2 (solids content: 56.0% by weight) are applied.
  • 0.25 g cellulose / m 2 are applied.
  • a fourth melamine resin is also applied to the underside of the plate with a roller application unit (application rate: 30 g of resin fl./m 2 , solids content: about 55% by weight).
  • the formulas also contain a release agent contain.
  • the resin is again dried in a circulating air dryer and then the plate is pressed in a short-cycle press at 200 ° C and a pressure of 400 N / cm 2 .
  • the pressing time was 10 seconds.
  • the structural element used was a press plate with a wood structure.
  • a first roller application unit about 70 g of melamine resin fl. (Solids content: 55% by weight) containing the usual auxiliaries (hardener, wetting agent, etc.) on the plate surface applied.
  • a melamine resin is applied to the underside of the plate also with a roller application unit applied (application amount:. 60 g resin fl / m 2, solid content: about 55% by weight).
  • a second melamine resin layer (solid content: 55% by weight) is applied in an amount of 25 g / m 2 . These also contain the usual auxiliaries.
  • a second melamine resin is also applied with a roller application unit (application rate: 50 g resin fl. / M 2 , solids content: about 55% by weight). Again, the plate is dried in a circulating air dryer.
  • melamine resin is applied again with a roll aggregate.
  • the application rate of the resin is about 20 g melamine resin fl./m 2 (solids content: 61.5% by weight).
  • the formulation also contains a release agent.
  • a melamine resin is also applied with a roller application unit (application rate: 40 g resin fl. / M 2 , solids content: about 55% by weight).
  • about 6 g of glass balls / m 2 are sprinkled with a scattering unit. These had a diameter of 60-80 microns.
  • the plate is again dried in a circulating air dryer and then again coated with a melamine resin containing cellulose (Vivapur 302).
  • a melamine resin containing cellulose Vivapur 302
  • about 20 g of melamine resin fl./m 2 solids content: 56.0% by weight
  • 0.25 g cellulose / m 2 are applied.
  • a melamine resin is also applied with a roller application unit (application rate: 30 g of resin fl. / M 2 , solids content: about 55% by weight).
  • the formulas also contain a release agent.
  • the resin is again dried in a circulating air dryer and then the plate is pressed in a short-cycle press at 200 ° C and a pressure of 400 N / cm 2 .
  • the pressing time was 10 seconds.
  • the structural element used was a press plate with a wood structure.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Laminated Bodies (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)

Claims (14)

  1. Procédé servant à fabriquer un panneau en matériau dérivé du bois résistant à l'abrasion, qui présente, sur le côté supérieur, au moins une couche décorative, en particulier sous la forme d'un motif décoratif imprimé, comprenant les étapes consistant à :
    - appliquer au moins une première couche de résine sur l'au moins une couche décorative sur le côté supérieur et sur le côté inférieur du panneau en matériau dérivé du bois ;
    - disperser de manière homogène des particules résistantes à l'abrasion sur la première couche de résine sur le côté supérieur du panneau en matériau dérivé du bois ;
    - sécher la première couche de résine pourvue des particules résistantes à l'abrasion sur le côté supérieur et la première couche de résine sur le côté inférieur du panneau en matériau dérivé du bois dans au moins un dispositif de séchage ;
    - appliquer au moins une deuxième couche de résine sur la première couche de résine séchée pourvue des particules résistantes à l'abrasion sur le côté supérieur et sur la première couche de résine séchée sur le côté inférieur du panneau en matériau dérivé du bois ;
    - sécher la deuxième couche de résine respective sur le côté supérieur et le côté inférieur du panneau en matériau dérivé du bois dans au moins un dispositif de séchage ;
    - appliquer respectivement au moins une troisième couche de résine sur le côté supérieur et le côté inférieur du panneau en matériau dérivé du bois, dans lequel la résine à appliquer en tant que troisième couche de résine sur le côté supérieur du panneau en matériau dérivé du bois contient des billes de verre ;
    - sécher la troisième couche de résine appliquée respectivement sur le côté supérieur et le côté inférieur du panneau en matériau dérivé du bois dans au moins un dispositif de séchage ;
    - appliquer respectivement au moins une quatrième couche de résine sur le côté supérieur et le côté inférieur du panneau en matériau dérivé du bois, dans lequel la résine à appliquer en tant que quatrième couche de résine sur le côté supérieur du panneau en matériau dérivé du bois contient des billes de verre et/ou des fibres ;
    - sécher la quatrième couche de résine appliquée respectivement sur le côté supérieur et le côté inférieur du panneau en matériau dérivé du bois dans au moins un dispositif de séchage ; et
    - compresser la structure stratifiée.
  2. Procédé selon la revendication 1, caractérisé en ce que la quantité de la première couche de résine appliquée sur le côté supérieur du panneau en matériau dérivé du bois est comprise entre 50 - 100 g/m2, de manière préférée entre 60 - 80 g/m2, de manière particulièrement préférée est de 70 g/m2.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que les particules résistantes à l'abrasion comprennent des particules composées de corindon, de carbure de bore, de dioxyde de silicium, de carbure de silicium.
  4. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la quantité en particules résistantes à l'abrasion dispersées va de 10 à 50 g/m2, de manière préférée de 10 à 30 g/m2, de manière particulièrement préférée de 15 à 25 g/m2.
  5. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la quantité de la deuxième couche de résine appliquée sur le côté supérieur du panneau en matériau dérivé du bois est comprise entre 10 - 50 g/m2, de manière préférée entre 20 - 30 g/m2, de manière particulièrement préférée est de 25 g/m2.
  6. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la quantité de la troisième couche de résine appliquée sur le côté supérieur du panneau en matériau dérivé du bois est comprise entre 10 - 40 g/m2, de manière préférée entre 15 - 30 g/m2, de manière particulièrement préférée est de 20 g/m2, dans lequel la teneur en matières solides est comprise entre 50 - 80 % en poids, de manière préférée entre 60 - 70 % en poids, de manière particulièrement préférée entre 60 - 65 % en poids.
  7. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la quantité appliquée des billes en verre, quand ces dernières sont appliquées conjointement sur la troisième couche de résine est de 1 - 5 g/m2, de manière préférée de 2 - 4 g/m2, de manière particulièrement préférée de 3 g/m2.
  8. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la résine à appliquer en tant que quatrième couche de résine sur le côté supérieur du panneau en matériau dérivé du bois contient des fibres de bois ou des fibres de cellulose.
  9. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la quantité de la quatrième couche de résine appliquée sur le côté supérieur du panneau en matériau dérivé du bois est comprise entre 10 - 40 g/m2, de manière préférée entre 15 - 30 g/m2, de manière particulièrement préférée est de 20 g/m2 pour une teneur en matières solides de 50 - 80 % en poids, de manière préférée de 60 - 70 % en poids, de manière particulièrement préférée de 60 - 65 % en poids.
  10. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que dans la quatrième couche de résine, les billes de verre sont appliquées en une quantité de 1 - 5 g/m2, de manière préférée de 2 - 4 g/m2, de manière particulièrement préférée de 3 g/m2.
  11. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que dans la quatrième couche de résine, les fibres sont appliquées en une quantité comprise entre 0,1 - 0,5 g/m2, de manière préférée 0,2 - 0,4 g/m2, de manière particulièrement préférée de 0,25 g/m2.
  12. Ligne de production servant à mettre en oeuvre un procédé selon l'une quelconque des revendications précédentes, comprenant
    - au moins un premier dispositif d'application servant à appliquer une première couche de résine sur le côté supérieur et sur le côté inférieur du panneau de support,
    - au moins un dispositif disposé dans une direction de transformation derrière le premier dispositif d'application, servant à disperser une quantité prédéfinie de particules résistantes à l'abrasion ;
    - au moins un premier dispositif de séchage disposé dans la direction de transformation derrière le premier dispositif d'application et le dispositif d'épandage, servant à sécher la première couche de résine supérieure et la première couche de résine inférieure ;
    - au moins un deuxième dispositif d'application disposé dans la direction de transformation derrière le premier dispositif de séchage servant à appliquer une deuxième couche de résine, sur le côté supérieur et le côté inférieur du panneau de support,
    - au moins un deuxième dispositif de séchage disposé dans la direction de transformation derrière le deuxième dispositif d'application, servant à sécher la deuxième couche de résine supérieure et la deuxième couche de résine inférieure ;
    - au moins un troisième dispositif d'application disposé dans la direction de transformation derrière le deuxième dispositif de séchage servant à appliquer une troisième couche de résine, sur le côté supérieur et le côté inférieur du panneau de support, dans laquelle la résine à appliquer en tant que troisième couche de résine sur le côté supérieur du panneau en matériau dérivé du bois contient des billes de verre,
    - au moins un troisième dispositif de séchage disposé dans la direction de transformation derrière le troisième dispositif d'application, servant à sécher la troisième couche de résine supérieure et la troisième couche de résine inférieure ;
    - au moins un quatrième dispositif d'application disposé dans la direction de transformation derrière le troisième dispositif de séchage servant à appliquer une quatrième couche de résine, sur le côté supérieur et le côté inférieur du panneau de support, dans laquelle la résine à appliquer en tant que quatrième couche de résine sur le côté supérieur du panneau en matériau dérivé du bois contient des billes de verre et/ou des fibres ;
    - au moins un quatrième dispositif de séchage disposé dans la direction de transformation derrière le quatrième dispositif d'application, servant à sécher la quatrième couche de résine supérieure et la quatrième couche de résine inférieure ; et
    - au moins une presse à cycle court disposée dans la direction de transformation derrière le quatrième dispositif de séchage.
  13. Ligne de production selon la revendication 12, caractérisée en ce que l'au moins un dispositif d'épandage est disposé dans au moins une cabine, qui est pourvue d'au moins un moyen servant à retirer des poussières apparaissant dans la cabine.
  14. Panneau en matériau dérivé du bois pouvant être fabriqué selon un procédé selon l'une quelconque des revendications 1 à 11, comprenant au moins une couche décorative sur le côté supérieur, au moins une première couche de résine appliquée en une quantité comprise entre 60 et 100 g/m2 sur le côté supérieur et le côté inférieur, au moins une couche composée de particules résistantes à la traction dans la première couche de résine sur le côté supérieur, au moins une deuxième couche de résine sur le côté supérieur et le côté inférieur du panneau en matériau dérivé du bois, au moins une troisième couche de résine sur le côté supérieur et le côté inférieur, dans lequel des billes de verre sont contenues dans la troisième couche de résine sur le côté supérieur, et au moins une quatrième couche de résine sur le côté supérieur et le côté inférieur, dans lequel des billes de verre et/ou des fibres sont contenues dans la quatrième couche de résine sur le côté supérieur.
EP16170640.3A 2016-05-20 2016-05-20 Procédé de fabrication d'une plaque en matériau de type bois et ligne de production pour celle-ci Active EP3246175B1 (fr)

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EP16170640.3A EP3246175B1 (fr) 2016-05-20 2016-05-20 Procédé de fabrication d'une plaque en matériau de type bois et ligne de production pour celle-ci
PT16170640T PT3246175T (pt) 2016-05-20 2016-05-20 Processo para a produção de uma placa de derivados de madeira resistente à abrasão e linha de produção para a mesma
PL16170640T PL3246175T3 (pl) 2016-05-20 2016-05-20 Sposób wytwarzania odpornej na ścieranie płyty drewnopochodnej i linia produkcyjna do tego celu
ES16170640.3T ES2686972T3 (es) 2016-05-20 2016-05-20 Procedimiento para fabricar un tablero de material derivado de la madera resistente a la abrasión y línea de producción para ello
US16/099,547 US11192398B2 (en) 2016-05-20 2017-05-04 Method for producing an abrasion-resistant wood material panel and production line therefor
CN202111025962.9A CN113815343A (zh) 2016-05-20 2017-05-04 执行用于制造耐磨的复合木材板的方法的生产线
PCT/EP2017/060710 WO2017198474A1 (fr) 2016-05-20 2017-05-04 Procédé de fabrication d'un panneau en matériau dérivé du bois résistant à l'abrasion et ligne de production afférente
PL17722725.3T PL3458281T3 (pl) 2016-05-20 2017-05-04 Linia produkcyjna do produkcji odpornej na ścieranie płyty drewnopochodnej
UAA201811307A UA123788C2 (uk) 2016-05-20 2017-05-04 Спосіб одержання зносостійкої плити на основі деревних матеріалів і виробнича лінія для його здійснення
EP17722725.3A EP3458281B1 (fr) 2016-05-20 2017-05-04 Ligne de production pour la fabrication d'un panneau en matériau dérivé du bois résistant à l'abrasion
RU2018138803A RU2716188C1 (ru) 2016-05-20 2017-05-04 Способ получения износостойкой плиты на основе древесных материалов и производственная линия для его осуществления
CN201780030964.2A CN109153283A (zh) 2016-05-20 2017-05-04 用于制造耐磨的复合木材板的方法和针对此的生产线
US17/525,088 US11884097B2 (en) 2016-05-20 2021-11-12 Method for producing an abrasion-resistant wood material panel and production line therefor

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EP3458281A1 (fr) 2019-03-27
US11192398B2 (en) 2021-12-07
PL3246175T3 (pl) 2019-03-29
RU2716188C1 (ru) 2020-03-06
US11884097B2 (en) 2024-01-30
CN113815343A (zh) 2021-12-21
EP3458281C0 (fr) 2023-12-20
EP3246175A1 (fr) 2017-11-22
EP3458281B1 (fr) 2023-12-20
UA123788C2 (uk) 2021-06-02
US20220072897A1 (en) 2022-03-10
US20190160859A1 (en) 2019-05-30
CN109153283A (zh) 2019-01-04
PT3246175T (pt) 2018-10-22
WO2017198474A1 (fr) 2017-11-23
ES2686972T3 (es) 2018-10-23
PL3458281T3 (pl) 2024-05-13

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