EP2123476B1 - Method for manufacturing coated panels and a press element - Google Patents
Method for manufacturing coated panels and a press element Download PDFInfo
- Publication number
- EP2123476B1 EP2123476B1 EP09075213.0A EP09075213A EP2123476B1 EP 2123476 B1 EP2123476 B1 EP 2123476B1 EP 09075213 A EP09075213 A EP 09075213A EP 2123476 B1 EP2123476 B1 EP 2123476B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- zones
- treatment
- situated
- press element
- relief
- 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.)
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Links
- 238000000034 method Methods 0.000 title claims description 48
- 238000004519 manufacturing process Methods 0.000 title claims description 14
- 238000011282 treatment Methods 0.000 claims description 51
- 239000000463 material Substances 0.000 claims description 21
- 239000002023 wood Substances 0.000 claims description 18
- 238000003825 pressing Methods 0.000 claims description 17
- 239000000758 substrate Substances 0.000 claims description 14
- 229920002994 synthetic fiber Polymers 0.000 claims description 11
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 8
- 229910052804 chromium Inorganic materials 0.000 claims description 8
- 239000011651 chromium Substances 0.000 claims description 8
- 238000005530 etching Methods 0.000 claims description 7
- 238000005498 polishing Methods 0.000 claims description 6
- 239000011148 porous material Substances 0.000 claims description 6
- 238000007747 plating Methods 0.000 claims description 5
- 238000003754 machining Methods 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 238000009760 electrical discharge machining Methods 0.000 claims description 2
- 238000013532 laser treatment Methods 0.000 claims description 2
- 238000009210 therapy by ultrasound Methods 0.000 claims description 2
- 239000010410 layer Substances 0.000 description 38
- 239000011347 resin Substances 0.000 description 7
- 239000002245 particle Substances 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 239000011241 protective layer Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000011094 fiberboard Substances 0.000 description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 3
- 239000000123 paper Substances 0.000 description 3
- 239000004922 lacquer Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011093 chipboard Substances 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 229930014626 natural product Natural products 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
Images
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
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/06—Platens or press rams
- B30B15/062—Press plates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
- B44B5/00—Machines or apparatus for embossing decorations or marks, e.g. embossing coins
- B44B5/02—Dies; Accessories
- B44B5/026—Dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
- B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
- B44C1/24—Pressing or stamping ornamental designs on surfaces
-
- 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
Definitions
- This invention relates to a method -for manufacturing coatedfloor panelsor coated furniture panels.
- the invention relates to a method for manufacturing coated floor panels or coated furniture panels, which are of the type comprising a substrate and a decorative top layer provided on top thereof.
- This may relate, for example, to floor panels substantially consisting of a substrate, for example, a MDF or HDF (Medium or High Density Fiberboard) panel and a top layer provided thereon, such as a laminate top layer.
- MDF or HDF Medium or High Density Fiberboard
- the invention relates to a method for manufacturing coated panels with a printed decor with a transparent or translucent layer of synthetic material extending there above.
- a printed decor with a transparent or translucent layer of synthetic material extending there above.
- the decor also may be provided on a material sheet, such as a paper sheet, which is incorporated in said top layer.
- the transparent or translucent synthetic material layer forms a protective layer above the printed decor and may comprise, for example, wear-resistant particles, such as aluminum oxide. It is not excluded that this protective layer also comprises a material sheet, such as a paper sheet.
- Such laminate floor panel may be manufactured, for example, according to a DPL (Direct Pressure Laminate) or HPL (High Pressure Laminate) technique.
- one or more material sheets provided with resin are brought, together with the substrate, in a press device, where, by means of a pressing element and under the influence of increased pressure and temperature, they are connected to each other as well as to the substrate.
- the top layer is formed separately on the basis of two or more material sheets provided with resin, before the thus obtained top layer is provided on the substrate, for example, by gluing it on the substrate.
- a relief of impressed portions can be formed, by which, for example, the natural structure of the motif represented in said decor can be imitated.
- the decor represents a wood motif
- Such wood structure possibly may correspond to the underlying decor, by which then so-called impressions in register with the printed decor are obtained.
- structured press elements are applied.
- various techniques are known, for example, from WO 2006/0066776 , upon which the preamble of claim 1 has been based.
- WO 2006/063803 discloses press elements having zones of different gloss degree.
- the press elements obtained by means of such methods still leave much to be desired.
- EP-A-2 060 658 and EP-A-2 045 363 which both are documents falling under Art.54(3) and which both are not relevant to the question of inventive step, disclose methods for manufacturing press elements having zones of different gloss degree.
- the present invention aims at an alternative method for manufacturing coated floor panels or coated furniture panels, which, according to various preferred embodiments of the invention, can offer advantages in respect to the state of the art.
- the present invention relates to method for manufacturing coated
- the present invention relates to a method for manufacturing coated floor panels or coated furniture panels, wherein these panels are of the type comprising at least a substrate, a decor and a top layer on the basis of synthetic material, wherein the method comprises at least the following steps:
- determining the gloss degree it is meant that by means of the respective zones, corresponding zones of different gloss degree are formed at the decorative side of the formed coated panel.
- this relates to a difference in gloss degree clearly manifesting itself as matte and glossy at the decorative side of the coated panels.
- a difference in gloss degree is obtained at the decorative side, wherein the matte zones have a gloss degree of 10, or still better less than 10, whereas the glossy zones have a gloss degree of more than 10, or still better of more than 20.
- a difference between the glossy and matte zones of at least 10 is obtained, all this measured according to DIN 67530.
- a glossy zone preferably corresponds to a gloss degree of more than 40, and still better of more than 100, and a matte zone to a gloss degree of less than 40, also measured according to DIN 67530.
- zones on the press element result in deeper-situated impressed portions of the obtained coated panel. Due to the fact that zones, according to their level on the press element, or on the decorative side of the floor panel, can be provided with another gloss degree, it is possible to achieve in a smooth manner special effects at the decorative side of the manufactured coated panels, such as special depth effects. Also, at the decorative side of such coated panel, better imitations of certain natural products, such as of certain wood species, can be realized.
- a plate is applied which is substantially flat at the pressing side, wherein this plate is provided with protruding portions and these protruding portions form said higher-situated zones and the substantially flat areas lying in between form said lower-situated zones.
- protruding portions preferably protrude not more than 1 mm and still better not more than 0.5 mm above the lower-situated zones.
- level differences may be present, which then preferably are not more than 0.2 mm and still better are not more than 0.07 mm.
- metal such as a steel alloy or a copper alloy, is applied.
- the step of forming the coated panels preferably use is made of the also above-described DPL technique.
- the higher-situated zones of the press element show a gloss degree-determining surface structure over the majority of their surface, which differs from the gloss degree-determining surface structure of the majority of the lower-situated zones, wherein the higher-situated zones preferably show a higher gloss degree than the lower-situated zones.
- impressed portions are present as matte or glossy accents in the respectively predominantly glossy or matte surface.
- the press element is provided with a relief having the form of a wood structure, wherein said higher-situated zones comprise at least wood pores of this wood structure and wherein then preferably substantially only the wood pores are provided with the surface structure determining a different gloss degree.
- the present invention is not restricted to manufacturing coated panels representing a wood structure or wood motif.
- the present invention can also be applied when the printed decor and the pertaining structure relate to a stone motif, a stone structure, respectively, or if this concerns fantasy motifs, fantasy structures, respectively.
- the surface of the higher-situated zones which is provided with a different gloss degree, preferably shows a higher gloss degree in respect to the surface of the lower-situated zones. In such manner, impressed portions can be emphasized most efficiently and subtle.
- the present invention is particularly interesting when said decor represents a motif and when said relief and the motif of said decor are in mutual correspondence, such that said impressed portions in the decorative side follow said motif at least partially or coincide therewith at least partially.
- this relates to impressed portions provided, so to say, "in register” with the underlying motif of the, preferably printed, pattern.
- This embodiment allows obtaining particularly convincing imitations of, for example, solid wood.
- the step of making said press element on the one hand, at least a first series of treatments is performed on the press element, wherein at least said higher-situated zones are formed, and, on the other hand, at least a second series of treatments is performed on the press element, wherein substantially either only the higher-situated zones or only the lower-situated zones of this press element are subjected to this second series of treatments.
- the step of making the press element can be performed smoothly and efficiently.
- either the lower-situated zones or the higher-situated zones, respectively, of the already formed relief are physically or chemically shielded from the treatment concerned.
- the second series of treatments can be performed selectively on the respective zones in a simpler manner.
- Said shielding can be achieved by means of a material layer provided on the respective zone, which material layer is resistant to the respective treatment and which, after performing this second series of treatments, either is removed or not.
- a lacquer may be used which is resistant against etching, whether or not electrochemically, with certain agents.
- this may relate to a UV or air-drying lacquer.
- the application of such material layer may take place by means of any application technique, for example, by means of a printing technique, a spreading technique or an application technique by means of a device comprising one or more rollers, wherein the rollers concerned may or may not be engraved and may or may not be compressible, such as it is the case with a rubber roller.
- Said application technique may or may not be digitally controlled.
- a technique may be applied which as such is known from WO 2007/147376 .
- the pressing plate or another press element can be provided with a structure in any manner, for example, by etching, after which the lower-situated zones of the pressing plate are shielded and the higher-situated zones are polished by means of the technique of electro-polishing.
- the pressing plate or any other press element in a first series of treatments can be substantially entirely or entirely chromium-plated matte or sandblasted, after which the pressing plate is selectively chromium-plated at the height of the higher-situated zones.
- This can be achieved, for example, by shielding, in the chromium bath, the lower-situated zones by means of a resistant material layer.
- the pressing plate or any other press element can be chromium-plated substantially entirely or entirely glossy, after which the pressing plate selectively is chromium-plated matte or is sandblasted at the height of the lower-situated zones. This can be achieved, for example, by shielding the higher-situated zones by means of a resistant material layer.
- the higher-situated zones of a press element with the characteristics of the present invention preferably cover less than 20% and still better less than 10% of the surface of the entire pressing side of the press element concerned.
- the invention also relates to a coated floor panel or coated furniture panel, which is obtained by a method according to the invention.
- the impressed portions of such coated panel substantially show another gloss degree than the remaining, preferably substantially flat portions of the decorative side.
- the impressed portions can be made glossier or more matte.
- Figure 1 represents a coated panel 1, which can be obtained according to the invention.
- Such panel comprises at least a substrate 2, a decor 3 and a top layer 4 on the basis of synthetic material 5.
- the decor 3 more particularly relates to a print, which is provided on a material sheet 6 and which, provided with synthetic material 5, is included in the top layer 3 as a so-called decor layer 7.
- a protective layer 8 on the basis of synthetic material is provided, which in this case also comprises a material sheet 7 provided with synthetic material or resin.
- top layer also can comprise hard particles situated at least above the printed decor, however, such hard particles are not represented here. This may relate, for example, to aluminum oxide particles with an average grain size between 0.1 and 200 ⁇ m.
- the coated panel 1 has impressed portions 10 at the decorative side 9, in this case, this relates at least to impressed portions 10 for imitating wood pores.
- the impressed portions 10 have a higher gloss degree than the remaining portions 11 of the decorative side 9.
- Figure 2 schematically represents the step S1 of the method of the invention wherein the coated panel 1 is formed.
- the coated panel 1 of figure 1 is formed by means of the also above-mentioned DPL technique.
- the substrate 2 or a board comprising this substrate 2 the decorative layer 7 and the protective layer 8 are brought into a press device 12, where they are consolidated by means of a press element 13.
- the stack also comprises a so-called backing layer or balancing layer 14 at the underside, which layer is intended for being provided at the underside of the substrate 2 and in this case also substantially consists of a material sheet 6, such as a paper sheet, provided with synthetic material 5 or resin.
- Figure 2 clearly shows that the press element 13 is provided with a relief 16 at its surface or pressing side 15, said relief showing higher-situated zones 17 and lower-situated zones 18.
- said press element 13 is applied for forming, by means of the relief 16, the already mentioned impressed portions 10 and the structure of the remaining portions 11 in the decorative side 9 of the coated panels, or more particularly in the decorative sides of boards from which such coated panels can be obtained.
- FIG. 3 The particularity of the present invention is represented, amongst others, in figure 3 .
- This figure 3 clearly represents a part of the step S0 for producing the press element 13.
- the press element 13 is being provided with a relief 16 at its surface or pressing side 15.
- the press element or pressing plate 13 represented at the top in figure 3 is provided with the relief 16 in a first step, or at least is provided with at least a portion of this relief 16.
- the relief 16 realized in this first step shows the same or at least virtually the same gloss degree-determining surface structure at the surface of the higher-situated zones 17 as well as at the surface of the lower-situated zones 18.
- this relates to a relatively matte surface structure, which is represented schematically by means of the rough surface.
- Such relief 16 and surface structure can be achieved, for example, by means of an etching technique or a milling technique or a combination of both.
- a mutually differing gloss degree-determining surface structure is realized at the surface of, on the one hand, at least a number of the higher-situated zones 17 and, on the other hand, at least a number of the lower-situated zones 18.
- the lower-situated zones 18 are shielded with a material layer 20, such that they are not or less affected by the treatment or treatments performed in said subsequent step and thus substantially retain their surface structure realized in said first step.
- the treatment concerned may relate at least to a treatment in which the technique of electro-polishing is applied, by which a higher gloss degree is achieved at the location of the higher-situated zones 18.
- Figure 4 shows another variant, wherein in said subsequent step a covering layer 21 is provided on said higher-situated zones 17 or at least on a number thereof, whereas the lower-situated zones 16 are left undisturbed by the presence of said material layer 20.
- Said covering layer may relate, for example, to a chromium layer, preferably of the type that can be obtained by means of the technique of hard chromium plating, by which a higher gloss degree can be achieved at the higher-situated zones 18.
- said material layer 20 preferably is removed after the respective zones 17-18 have obtained their final, gloss degree-determining surface structure.
- the technique of the present invention preferably is applied for manufacturing floor panels, which preferably are of the type which can be installed free from glue.
- Glue-free installable floor panels are known as such, for example, from WO 97/47834 .
- the respective technique can also be applied for manufacturing furniture panels.
- any material can be applied as a substrate.
- a wood-based board material such as chipboard, MDF or HDF (Medium Density Fiberboard or High Density Fiberboard) or plywood, can be applied.
- the impressed portions, or at least the majority thereof, which according to the invention are provided in the decorative side of the coated panels, and thus in particular when impressed portions for imitating wood pores are concerned, preferably are situated entirely above the printed decor, or in other words do not penetrate into this printed decor or do not penetrate through this printed decor.
- the impressed portions preferably remain restricted to the layer of synthetic material provided above the printed decor, or still better remain restricted to said protective layer.
- the coated panel obtained by means of the invention preferably also comprises a backing layer.
- the consolidation in the press device is obtained substantially or exclusively by means of said synthetic material or the resin.
- resin may be, for example, a thermo-hardening resin, such as melamine formaldehyde resin.
- the invention preferably is applied for manufacturing coated panels, such as floor panels, wherein hard particles are present in the top layer, such as particles of aluminum oxide or silicon carbide.
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- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
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Description
- This invention relates to a method -for manufacturing coatedfloor panelsor coated furniture panels.
- More particularly, the invention relates to a method for manufacturing coated floor panels or coated furniture panels, which are of the type comprising a substrate and a decorative top layer provided on top thereof. This may relate, for example, to floor panels substantially consisting of a substrate, for example, a MDF or HDF (Medium or High Density Fiberboard) panel and a top layer provided thereon, such as a laminate top layer.
- In particular, the invention relates to a method for manufacturing coated panels with a printed decor with a transparent or translucent layer of synthetic material extending there above. It is known that such decor, whether or not by the intermediary of primer layers, can be printed directly on the substrate. However, the decor also may be provided on a material sheet, such as a paper sheet, which is incorporated in said top layer. The transparent or translucent synthetic material layer forms a protective layer above the printed decor and may comprise, for example, wear-resistant particles, such as aluminum oxide. It is not excluded that this protective layer also comprises a material sheet, such as a paper sheet. Such laminate floor panel may be manufactured, for example, according to a DPL (Direct Pressure Laminate) or HPL (High Pressure Laminate) technique. In the case of a DPL technique, one or more material sheets provided with resin are brought, together with the substrate, in a press device, where, by means of a pressing element and under the influence of increased pressure and temperature, they are connected to each other as well as to the substrate. In the case of a HPL technique, the top layer is formed separately on the basis of two or more material sheets provided with resin, before the thus obtained top layer is provided on the substrate, for example, by gluing it on the substrate.
- Further, it is known, for example, from
WO 01/96689 - For realizing a relief at the decorative side, as known, structured press elements are applied. For manufacturing such press elements, various techniques are known, for example, from
WO 2006/0066776 WO 2006/063803 discloses press elements having zones of different gloss degree. However, the press elements obtained by means of such methods still leave much to be desired. -
EP-A-2 060 658 andEP-A-2 045 363 , which both are documents falling under Art.54(3) and which both are not relevant to the question of inventive step, disclose methods for manufacturing press elements having zones of different gloss degree. - The present invention aims at an alternative method for manufacturing coated floor panels or coated furniture panels, which, according to various preferred embodiments of the invention, can offer advantages in respect to the state of the art.
- To this aim, the present invention relates to method for manufacturing coated To this aim, the present invention relates to a method for manufacturing coated floor panels or coated furniture panels, wherein these panels are of the type comprising at least a substrate, a decor and a top layer on the basis of synthetic material, wherein the method comprises at least the following steps:
- producing a press element, wherein this press element is provided with a relief at its surface or pressing side, said relief comprising higher-situated zones and lower-situated zones;
- forming the aforementioned coated panels, wherein said press element is applied for forming impressed portions in the decorative side of the coated panels by means of said relief, and more particularly in the decorative side of boards, from which then such coated panels can be obtained;
- By "determining the gloss degree", it is meant that by means of the respective zones, corresponding zones of different gloss degree are formed at the decorative side of the formed coated panel. Preferably, this relates to a difference in gloss degree clearly manifesting itself as matte and glossy at the decorative side of the coated panels. Preferably, a difference in gloss degree is obtained at the decorative side, wherein the matte zones have a gloss degree of 10, or still better less than 10, whereas the glossy zones have a gloss degree of more than 10, or still better of more than 20. Independently from the respective absolute gloss degree, at the decorative side of the coated panel preferably a difference between the glossy and matte zones of at least 10 is obtained, all this measured according to DIN 67530.
- When the gloss degree on the press plate is measured, a glossy zone preferably corresponds to a gloss degree of more than 40, and still better of more than 100, and a matte zone to a gloss degree of less than 40, also measured according to DIN 67530.
- It is clear that higher-situated zones on the press element result in deeper-situated impressed portions of the obtained coated panel. Due to the fact that zones, according to their level on the press element, or on the decorative side of the floor panel, can be provided with another gloss degree, it is possible to achieve in a smooth manner special effects at the decorative side of the manufactured coated panels, such as special depth effects. Also, at the decorative side of such coated panel, better imitations of certain natural products, such as of certain wood species, can be realized.
- It is noted that said surface structure determining the gloss degree can be obtained by realizing a microstructure, such as a roughness, at the respective surface of the pressing plate and/or by forming a cover layer at the respective surface, such as a layer of chromium.
- Preferably, for said press element a plate is applied which is substantially flat at the pressing side, wherein this plate is provided with protruding portions and these protruding portions form said higher-situated zones and the substantially flat areas lying in between form said lower-situated zones. It is noted that such protruding portions preferably protrude not more than 1 mm and still better not more than 0.5 mm above the lower-situated zones. It is clear that also in the lower-situated zones, level differences may be present, which then preferably are not more than 0.2 mm and still better are not more than 0.07 mm.
- Preferably, for the material of the press element of the invention metal, such as a steel alloy or a copper alloy, is applied.
- In the step of forming the coated panels, preferably use is made of the also above-described DPL technique.
- Preferably, the higher-situated zones of the press element show a gloss degree-determining surface structure over the majority of their surface, which differs from the gloss degree-determining surface structure of the majority of the lower-situated zones, wherein the higher-situated zones preferably show a higher gloss degree than the lower-situated zones. In such manner, it is possible to achieve at the decorative side of the coated panel effects in a particularly convincingly manner, wherein impressed portions are present as matte or glossy accents in the respectively predominantly glossy or matte surface.
- In a particularly preferred embodiment, the press element is provided with a relief having the form of a wood structure, wherein said higher-situated zones comprise at least wood pores of this wood structure and wherein then preferably substantially only the wood pores are provided with the surface structure determining a different gloss degree.
- It is clear that the present invention is not restricted to manufacturing coated panels representing a wood structure or wood motif. The present invention can also be applied when the printed decor and the pertaining structure relate to a stone motif, a stone structure, respectively, or if this concerns fantasy motifs, fantasy structures, respectively.
- In general, the surface of the higher-situated zones, which is provided with a different gloss degree, preferably shows a higher gloss degree in respect to the surface of the lower-situated zones. In such manner, impressed portions can be emphasized most efficiently and subtle.
- Moreover, the present invention is particularly interesting when said decor represents a motif and when said relief and the motif of said decor are in mutual correspondence, such that said impressed portions in the decorative side follow said motif at least partially or coincide therewith at least partially. Here, this relates to impressed portions provided, so to say, "in register" with the underlying motif of the, preferably printed, pattern. This embodiment allows obtaining particularly convincing imitations of, for example, solid wood.
- Preferably, in the step of making said press element, on the one hand, at least a first series of treatments is performed on the press element, wherein at least said higher-situated zones are formed, and, on the other hand, at least a second series of treatments is performed on the press element, wherein substantially either only the higher-situated zones or only the lower-situated zones of this press element are subjected to this second series of treatments. According to this method, the step of making the press element can be performed smoothly and efficiently. Preferably, when performing at least a portion of said second series of treatments either the lower-situated zones or the higher-situated zones, respectively, of the already formed relief are physically or chemically shielded from the treatment concerned. Hereby, the second series of treatments can be performed selectively on the respective zones in a simpler manner.
- Said shielding can be achieved by means of a material layer provided on the respective zone, which material layer is resistant to the respective treatment and which, after performing this second series of treatments, either is removed or not. So, for example, a lacquer may be used which is resistant against etching, whether or not electrochemically, with certain agents. Hereby, this may relate to a UV or air-drying lacquer. The application of such material layer may take place by means of any application technique, for example, by means of a printing technique, a spreading technique or an application technique by means of a device comprising one or more rollers, wherein the rollers concerned may or may not be engraved and may or may not be compressible, such as it is the case with a rubber roller. Said application technique may or may not be digitally controlled. In particular, a technique may be applied which as such is known from
WO 2007/147376 . - For said first series of treatments, one or a combination of two or more of the following treatments can be applied:
- a chemical or electrochemical etching treatment;
- a machining treatment by means of a mechanical tool;
- a machining treatment from the list of spark erosion, laser treatment and ultrasonic treatment;
- a mechanical or galvanic polishing treatment;
- a treatment wherein a covering layer is applied;
- a chromium plating;
- a treatment wherein a matte microstructure is obtained on the relief.
- For said second series of treatments, one or a combination of two or more of the following treatments can be applied:
- a chemical or electrochemical etching treatment;
- a mechanical or galvanic polishing treatment;
- a treatment wherein a covering layer is applied;
- a hard chromium plating;
- a treatment wherein a glossy microstructure is obtained on said protruding portions;
- a treatment wherein material is applied selectively.
- In the following, several particular combinations of the above possibilities are discussed specifically.
- According to a first possibility, in a first series of treatments the pressing plate or another press element can be provided with a structure in any manner, for example, by etching, after which the lower-situated zones of the pressing plate are shielded and the higher-situated zones are polished by means of the technique of electro-polishing.
- According to a second possibility, in a first series of treatments the pressing plate or any other press element can be substantially entirely or entirely chromium-plated matte or sandblasted, after which the pressing plate is selectively chromium-plated at the height of the higher-situated zones. This can be achieved, for example, by shielding, in the chromium bath, the lower-situated zones by means of a resistant material layer.
- According to a third possibility, in a first series of treatments, the pressing plate or any other press element can be chromium-plated substantially entirely or entirely glossy, after which the pressing plate selectively is chromium-plated matte or is sandblasted at the height of the lower-situated zones. This can be achieved, for example, by shielding the higher-situated zones by means of a resistant material layer.
- Generally, the higher-situated zones of a press element with the characteristics of the present invention preferably cover less than 20% and still better less than 10% of the surface of the entire pressing side of the press element concerned.
- The invention also relates to a coated floor panel or coated furniture panel, which is obtained by a method according to the invention.
- Preferably, the impressed portions of such coated panel substantially show another gloss degree than the remaining, preferably substantially flat portions of the decorative side. Herein, the impressed portions can be made glossier or more matte.
- With the intention of better showing the characteristics of the invention, hereafter, as an example without any limitative character, several preferred embodiments are described, with reference to the accompanying drawings, wherein:
-
Figure 1 represents a cross-section through the top layer of a coated panel obtained by means of the method of the present invention; -
Figure 2 schematically represents a step of the method of the present invention; -
Figure 3 schematically represents another step of the method of the present invention according to a view on the area indicated by F3 infigure 2 ; and -
Figure 4 , in a similar view, represents a variant. -
Figure 1 represents a coated panel 1, which can be obtained according to the invention. Such panel comprises at least asubstrate 2, adecor 3 and a top layer 4 on the basis ofsynthetic material 5. Herein, thedecor 3 more particularly relates to a print, which is provided on amaterial sheet 6 and which, provided withsynthetic material 5, is included in thetop layer 3 as a so-calleddecor layer 7. Above this decor layer, a protective layer 8 on the basis of synthetic material is provided, which in this case also comprises amaterial sheet 7 provided with synthetic material or resin. - It is noted that such top layer also can comprise hard particles situated at least above the printed decor, however, such hard particles are not represented here. This may relate, for example, to aluminum oxide particles with an average grain size between 0.1 and 200 µm.
- According to the invention, the coated panel 1 has impressed
portions 10 at the decorative side 9, in this case, this relates at least toimpressed portions 10 for imitating wood pores. In the represented example, theimpressed portions 10 have a higher gloss degree than the remainingportions 11 of the decorative side 9. -
Figure 2 schematically represents the step S1 of the method of the invention wherein the coated panel 1 is formed. Herein, the coated panel 1 offigure 1 is formed by means of the also above-mentioned DPL technique. To this aim, at least thesubstrate 2 or a board comprising thissubstrate 2, thedecorative layer 7 and the protective layer 8 are brought into apress device 12, where they are consolidated by means of apress element 13. In the represented case, the stack also comprises a so-called backing layer or balancing layer 14 at the underside, which layer is intended for being provided at the underside of thesubstrate 2 and in this case also substantially consists of amaterial sheet 6, such as a paper sheet, provided withsynthetic material 5 or resin. -
Figure 2 clearly shows that thepress element 13 is provided with arelief 16 at its surface or pressingside 15, said relief showing higher-situatedzones 17 and lower-situatedzones 18. In the step of forming the coated panels 1, saidpress element 13 is applied for forming, by means of therelief 16, the already mentionedimpressed portions 10 and the structure of the remainingportions 11 in the decorative side 9 of the coated panels, or more particularly in the decorative sides of boards from which such coated panels can be obtained. - The particularity of the present invention is represented, amongst others, in
figure 3 . Thisfigure 3 clearly represents a part of the step S0 for producing thepress element 13. Herein, thepress element 13 is being provided with arelief 16 at its surface or pressingside 15. The press element or pressingplate 13 represented at the top infigure 3 is provided with therelief 16 in a first step, or at least is provided with at least a portion of thisrelief 16. Therelief 16 realized in this first step shows the same or at least virtually the same gloss degree-determining surface structure at the surface of the higher-situatedzones 17 as well as at the surface of the lower-situatedzones 18. Here, this relates to a relatively matte surface structure, which is represented schematically by means of the rough surface.Such relief 16 and surface structure can be achieved, for example, by means of an etching technique or a milling technique or a combination of both. - In a subsequent step, indicated here by
arrow 19, a mutually differing gloss degree-determining surface structure is realized at the surface of, on the one hand, at least a number of the higher-situatedzones 17 and, on the other hand, at least a number of the lower-situatedzones 18. To this aim, as represented, the lower-situatedzones 18 are shielded with amaterial layer 20, such that they are not or less affected by the treatment or treatments performed in said subsequent step and thus substantially retain their surface structure realized in said first step. For example, the treatment concerned may relate at least to a treatment in which the technique of electro-polishing is applied, by which a higher gloss degree is achieved at the location of the higher-situatedzones 18. -
Figure 4 shows another variant, wherein in said subsequent step a coveringlayer 21 is provided on said higher-situatedzones 17 or at least on a number thereof, whereas the lower-situatedzones 16 are left undisturbed by the presence of saidmaterial layer 20. Said covering layer may relate, for example, to a chromium layer, preferably of the type that can be obtained by means of the technique of hard chromium plating, by which a higher gloss degree can be achieved at the higher-situatedzones 18. - It is clear that said
material layer 20 preferably is removed after the respective zones 17-18 have obtained their final, gloss degree-determining surface structure. - It is noted that the technique of the present invention preferably is applied for manufacturing floor panels, which preferably are of the type which can be installed free from glue. Glue-free installable floor panels are known as such, for example, from
WO 97/47834 - According to the invention, any material can be applied as a substrate. So, for example, a wood-based board material, such as chipboard, MDF or HDF (Medium Density Fiberboard or High Density Fiberboard) or plywood, can be applied.
- Further, it is noted that the impressed portions, or at least the majority thereof, which according to the invention are provided in the decorative side of the coated panels, and thus in particular when impressed portions for imitating wood pores are concerned, preferably are situated entirely above the printed decor, or in other words do not penetrate into this printed decor or do not penetrate through this printed decor. Namely, the impressed portions preferably remain restricted to the layer of synthetic material provided above the printed decor, or still better remain restricted to said protective layer.
- As represented by means of
figure 2 , the coated panel obtained by means of the invention preferably also comprises a backing layer. - Preferably, the consolidation in the press device, as in the case of
figure 2 , is obtained substantially or exclusively by means of said synthetic material or the resin. Such resin may be, for example, a thermo-hardening resin, such as melamine formaldehyde resin. - It is also noted that the invention preferably is applied for manufacturing coated panels, such as floor panels, wherein hard particles are present in the top layer, such as particles of aluminum oxide or silicon carbide.
- It is clear that the embodiments of the present invention represented in the figures represent still further preferred embodiments mentioned in the introduction. For example, it is clear that the
press element 13 applied in the examples relates to a plate, which is substantially flat at thepressing side 15, which plate is provided with protruding portions then forming said higher-situatedzones 17, whereas the substantially flat zones lying in between form said lower-situatedzones 18. Moreover, the higher-situatedzones 17 show the respective, gloss degree-determining surface structure over the majority of their surface. - The present invention is in no way limited to the above-described embodiments, on the contrary may such methods and coated floor panels or coated furniture panels be realized according to various variants, without leaving the scope of the present invention, as defined by the appended claims.
Claims (11)
- Method for manufacturing coated floor panels or coated furniture panels, wherein these panels (1) are of the type comprising at least a substrate (2), a decor (3) and a top layer (4) on the basis of synthetic material (5), wherein the method comprises at least the following steps:- producing a press element (13), wherein this press element (13) is provided with a relief (16) at its surface or pressing side (15), said relief (16) comprising higher-situated zones (17) and lower-situated zones (18);- forming the aforementioned coated panels (1), wherein said press element (13) is applied for forming impressed portions (10) in the decorative side (9) of the coated panels (1) by means of said relief (16), and more particularly in the decorative side (9) of boards, from which then such coated panels (1) can be obtained;
with the characteristic that, when producing said press element (13), in a first step said relief (16) or at least a portion of this relief (16) is formed, and in a second, subsequent step (19) a surface structure determining a mutually different gloss degree is realized at the surface of, at the one hand, at least a number of said higher-situated zones (17) and, on the other hand, at least a number of said lower-situated zones (18). - Method according to claim 1, characterized in that for said press element (13) a plate is applied, which is substantially flat at the pressing side (15), wherein this plate is provided with protruding portions and these protruding portions form said higher-situated zones (17) and the substantially flat zones lying in between form said lower-situated zones (18).
- Method according to claim 1 or 2, characterized in that said higher-situated zones (17) show a gloss degree-determining surface structure over the majority of their surface, which surface structure differs from the gloss degree-determining surface structure of the majority of the lower-situated zones (18), wherein the higher-situated zones (17) preferably show a higher gloss degree than the lower-situated zones (18).
- Method according to any of the preceding claims, characterized in that the press element (13) is provided with a relief (16) having the form of a wood structure, wherein said higher-situated zones (17) comprise at least wood pores of this wood structure and wherein then preferably substantially only the wood pores are provided with the different gloss degree-determining surface structure.
- Method according to any of the preceding claims, characterized in that the surface of the higher-situated zones (17), which is provided with a different gloss degree in respect to the surface of the lower-situated zones (18), has a higher gloss degree.
- Method according to any of the preceding claims, characterized in that said decor (3) represents a motif and that said relief (16) and the motif of said decor (3) are in accordance with each other, such that said impressed portions (10) in the decorative side (9) follow said motif at least partially or at least partially coincide therewith.
- Method according to any of the preceding claims, characterized in that in the step of producing said press element (13), on the one hand, at least a first series of treatments is performed on the press element (13), wherein at least said higher-situated zones (17) are formed, and, on the other hand, at least a second series of treatments is performed on the press element (13), wherein substantially either only the higher-situated zones (17) or only the lower-situated zones (18) of this press element (13) are subjected to this second series of treatments.
- Method according to claim 7, characterized in that when performing at least a part of said second series of treatments, either the lower-situated zones (18) or the higher-situated zones (17), respectively, of the already formed relief are physically or chemically shielded from the treatment concerned.
- Method according to claim 8, characterized in that said shielding is achieved by means of a material layer (20) provided on the respective zone (17-18), which material layer is resistant to the respective treatment and which, after performing this second series of treatments, either is removed or not.
- Method according to any of the claims 7 to 9, characterized in that said first series of treatments comprises one or a combination of two or more of the following treatments:- a chemical or electrochemical etching treatment;- a machining treatment by means of a mechanical tool;- a machining treatment from the list of spark erosion, laser treatment and ultrasonic treatment;- a mechanical or galvanic polishing treatment;- a treatment wherein a covering layer is applied;- a chromium plating;- a treatment wherein a matte microstructure is obtained on the relief.
- Method according to any of the claims 7 to 10, characterized in that said second series of treatments comprises one or a combination of two or more of the following treatments:- a chemical or electrochemical etching treatment;- a mechanical or galvanic polishing treatment;- a treatment wherein a covering layer is applied;- a hard chromium plating;- a treatment wherein a glossy microstructure is obtained on said protruding portions.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL09075213T PL2123476T3 (en) | 2008-05-20 | 2009-05-01 | Method for manufacturing coated panels and a press element |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE2008/0286A BE1018156A3 (en) | 2008-05-20 | 2008-05-20 | METHOD FOR MANUFACTURING COATED PANELS AND COATED PANEL. |
Publications (3)
Publication Number | Publication Date |
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EP2123476A2 EP2123476A2 (en) | 2009-11-25 |
EP2123476A3 EP2123476A3 (en) | 2011-05-11 |
EP2123476B1 true EP2123476B1 (en) | 2014-07-09 |
Family
ID=40185080
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Application Number | Title | Priority Date | Filing Date |
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EP09075213.0A Active EP2123476B1 (en) | 2008-05-20 | 2009-05-01 | Method for manufacturing coated panels and a press element |
Country Status (6)
Country | Link |
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EP (1) | EP2123476B1 (en) |
BE (1) | BE1018156A3 (en) |
DK (1) | DK2123476T3 (en) |
ES (1) | ES2507568T3 (en) |
PL (1) | PL2123476T3 (en) |
PT (1) | PT2123476E (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019124004A1 (en) * | 2019-09-06 | 2021-03-11 | Hueck Rheinische Gmbh | Press tool, workpiece, method for producing a pressing tool and method for producing a workpiece |
Families Citing this family (18)
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BE1018753A3 (en) * | 2009-05-11 | 2011-08-02 | Flooring Ind Ltd Sarl | LAMINATE PANEL AND METHODS FOR MANUFACTURING LAMINATE PANELS. |
US8480841B2 (en) | 2010-04-13 | 2013-07-09 | Ceralog Innovation Belgium BVBA | Powder overlay |
BE1019373A4 (en) * | 2010-06-15 | 2012-06-05 | Teconsult N V I | BUILDING ELEMENT WITH DECORATIVE TOP LAYER. |
BE1019383A3 (en) * | 2010-06-23 | 2012-06-05 | Flooring Ind Ltd Sarl | METHOD FOR MANUFACTURING PANELS AND PANEL OBTAINED HEREBY |
PT2626216T (en) | 2011-03-10 | 2018-10-22 | Hueck Rheinische Gmbh | Method for processing a structured surface of an embossing tool and the embossing tool |
DE202012004375U1 (en) * | 2012-05-04 | 2012-06-11 | Hueck Rheinische Gmbh | Material plate with a structured surface |
BE1021743B1 (en) | 2013-12-10 | 2016-01-14 | Unilin Bvba | FLOORING AND MANUFACTURING METHOD |
KR102438141B1 (en) | 2014-07-16 | 2022-08-29 | 뵈린게 이노베이션 에이비이 | How to make a thermoplastic abrasion resistant foil |
US11913226B2 (en) | 2015-01-14 | 2024-02-27 | Välinge Innovation AB | Method to produce a wear resistant layer with different gloss levels |
PL3088173T3 (en) * | 2015-04-28 | 2021-05-04 | Berndorf Band Gmbh | Endless belt with a metal tape body |
ITUB20153556A1 (en) * | 2015-09-11 | 2017-03-11 | Flai Srl | IMPROVED PROCEDURE FOR THE IMPLEMENTATION OF METAL MOLDS, SUCH AS METALS, CYLINDERS AND SIMILARS PROVIDED WITH AT LEAST ONE STRUCTURED SURFACE AND METAL MOLDS OBTAINED WITH THIS PROCEDURE |
US10563309B1 (en) | 2015-10-13 | 2020-02-18 | Kings Mountain International, Inc. | Method for creating a textured press plate |
BE1025599B9 (en) * | 2017-09-28 | 2019-05-28 | Unilin B V B A | METHOD FOR MANUFACTURING STRUCTURED PERSONAL ELEMENTS |
BE1028056B1 (en) | 2020-02-13 | 2021-09-14 | Unilin | Press element and method for manufacturing press elements |
EP4103408A1 (en) | 2020-02-13 | 2022-12-21 | Flooring Industries Limited, SARL | Pressing element and method for manufacturing pressing elements |
BE1030607B1 (en) | 2022-06-10 | 2024-01-16 | Flooring Ind Ltd Sarl | Press element and method for manufacturing press elements |
EP4190541B1 (en) | 2021-12-02 | 2024-07-24 | Unilin, BV | Press element and method for manufacturing press elements |
DE102022116427A1 (en) | 2022-06-30 | 2024-01-04 | Hueck Rheinische Gmbh | Method for processing a surface of a pressing tool |
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BE1013553A3 (en) * | 2000-06-13 | 2002-03-05 | Unilin Beheer Bv | Floor covering. |
US7419716B2 (en) * | 2003-05-30 | 2008-09-02 | Awi Licensing Company | Multiple gloss level surface coverings and method of making |
US20050055931A1 (en) * | 2003-08-28 | 2005-03-17 | Michel Rochette | Stones-like laminates |
EP1669193B1 (en) * | 2003-09-30 | 2015-07-29 | Dai Nippon Printing Co., Ltd. | Decorating material |
BRPI0519338A2 (en) * | 2004-12-16 | 2009-01-20 | Flooring Ind Ltd | floor panel and method for manufacturing a floor panel |
EP2062745B1 (en) * | 2004-12-23 | 2014-03-05 | Flooring Industries Ltd. | Method for manufacturing laminate floor panels having a decorative top layer with a relief |
DE102006022722B4 (en) | 2006-05-12 | 2010-06-17 | Hueck Engraving Gmbh & Co. Kg | Method and device for surface structuring of a press plate or an endless belt |
EP1908608A1 (en) * | 2006-10-05 | 2008-04-09 | Spanolux N.V. Div. Balterio | Method of and apparatus for manufacturing a panel and produced panel |
DE102007055053A1 (en) | 2007-11-16 | 2009-05-20 | Hueck Engraving Gmbh & Co. Kg | Method for processing a structured surface |
-
2008
- 2008-05-20 BE BE2008/0286A patent/BE1018156A3/en active
-
2009
- 2009-05-01 PT PT90752130T patent/PT2123476E/en unknown
- 2009-05-01 DK DK09075213.0T patent/DK2123476T3/en active
- 2009-05-01 EP EP09075213.0A patent/EP2123476B1/en active Active
- 2009-05-01 PL PL09075213T patent/PL2123476T3/en unknown
- 2009-05-01 ES ES09075213.0T patent/ES2507568T3/en active Active
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EP2045363A1 (en) * | 2007-10-05 | 2009-04-08 | Spanolux N.V. Div. Balterio | A method of manufacturing a press plate, a press plate, a method of embossing a floor panel, and a floor panel |
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DE102019124004A1 (en) * | 2019-09-06 | 2021-03-11 | Hueck Rheinische Gmbh | Press tool, workpiece, method for producing a pressing tool and method for producing a workpiece |
Also Published As
Publication number | Publication date |
---|---|
EP2123476A3 (en) | 2011-05-11 |
PL2123476T3 (en) | 2014-12-31 |
ES2507568T3 (en) | 2014-10-15 |
BE1018156A3 (en) | 2010-06-01 |
PT2123476E (en) | 2014-10-06 |
EP2123476A2 (en) | 2009-11-25 |
DK2123476T3 (en) | 2014-10-06 |
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