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WO2024125809A1 - Panneau décoratif - Google Patents

Panneau décoratif Download PDF

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Publication number
WO2024125809A1
WO2024125809A1 PCT/EP2022/086432 EP2022086432W WO2024125809A1 WO 2024125809 A1 WO2024125809 A1 WO 2024125809A1 EP 2022086432 W EP2022086432 W EP 2022086432W WO 2024125809 A1 WO2024125809 A1 WO 2024125809A1
Authority
WO
WIPO (PCT)
Prior art keywords
panel
bevel
plate
layer
decorative
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.)
Ceased
Application number
PCT/EP2022/086432
Other languages
German (de)
English (en)
Inventor
Hermann GFÖLLER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lignum Technologies AG
Original Assignee
Lignum Technologies AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lignum Technologies AG filed Critical Lignum Technologies AG
Priority to CN202280102598.8A priority Critical patent/CN120359339A/zh
Priority to EP22839748.5A priority patent/EP4634470A1/fr
Priority to PCT/EP2022/086432 priority patent/WO2024125809A1/fr
Publication of WO2024125809A1 publication Critical patent/WO2024125809A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/02—Flooring or floor layers composed of a number of similar elements
    • E04F15/10—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials
    • E04F15/102—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials of fibrous or chipped materials, e.g. bonded with synthetic resins
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/02—Flooring or floor layers composed of a number of similar elements
    • E04F15/02005—Construction of joints, e.g. dividing strips
    • E04F15/02033—Joints with beveled or recessed upper edges

Definitions

  • the present invention relates to a method for producing a panel, in particular a laminate, wall, ceiling, furniture or floor panel.
  • the present invention further relates to a panel produced in this way.
  • the manufacturing processes should provide visually appealing panels, panels with improved tactile appearance and panels that are also durable.
  • Known panels in such a technical field for visible surfaces include laminate panels, which are relatively inexpensive and easy to handle. Typically, they comprise a carrier board made of a medium density fiberboard (MDF) or high density fiberboard (HDF) material, which allows thermal recyclability.
  • MDF medium density fiberboard
  • HDF high density fiberboard
  • Known methods in such a technical field for visible surfaces include the application of decorative layers onto the carrier board during the manufacturing process to create visually appealing panels.
  • the panel may be profiled, which comprises providing a specific shape to front and/or side surfaces of the panel so as to facilitate joining of two or more panels.
  • one or more edges of the panels may be provided with a bevelled edge, which is typically done by milling a bevel (or chamfer) on the edge.
  • the bevel is subsequently coated, i.e. provided with a varnished layer in a single colour.
  • the provision of the bevelled edge together with its coating may be carried out by separate devices.
  • the bevel does not have the decorative layer over it, but is coated in a single color.
  • Such common practices always have to provide a compromise to align the bevel with the decorative layer of the panel. Aligning the decorative layer by remachining the bevel is very expensive and thus is not performed.
  • coating the bevel is an additional step that is not very effective.
  • Another disadvantage of known prior art approaches is that structural properties of the bevel always differ from the remaining panel due to the separate and/or additional coating step. Thus, such bevels may be more susceptible to mechanical failure and may break more easily.
  • it is an object of the present invention aims to provide an improved, overall attractive and durable panel that is pleasant to the touch.
  • a corresponding manufacturing process for the panel should be made possible.
  • the manufacturing process should be simplified and cost-effective.
  • a further object is to provide a manufacturing process and panel in which varying the appearance of the panel is simplified.
  • the object is achieved by a panel, in particular a wall, ceiling, furniture or floor panel, wherein the panel comprises: a carrier board, such as a medium density fiber board (MDF), a high density fiber board (HDF) or a particle board; wherein the board has at least one bevel on at least one edge; and a decorative print layer applied to the board and to the at least one bevel.
  • a carrier board such as a medium density fiber board (MDF), a high density fiber board (HDF) or a particle board
  • MDF medium density fiber board
  • HDF high density fiber board
  • the board has at least one bevel on at least one edge
  • a decorative print layer applied to the board and to the at least one bevel.
  • the decorative print layer is applied to both, i.e. the panel and the at least one bevel.
  • the decorative effect is improved as there is essentially no variation of the decorative print layer when viewed from above. This is advantageous as it helps to achieve a more natural look.
  • Another advantage is that essentially no additional manufacturing steps are required to provide a color and/or coating to the bevel, since the decorative printing layer also covers the bevel.
  • the panel has the advantage of improving its quality, as there is essentially no difference between a material applied to the panel and a material applied to the bevel.
  • This also provides a haptic advantage, as there is a smooth transition of the same material on the panel from from the center of the panel to the bevel. Accordingly, structural properties of the panel are improved.
  • the at least one bevel is provided in such a way, e.g. machined, that layers can be easily applied to the panel and/or to the decorative printing layer.
  • Such machining e.g. by milling is advantageous because it does not negatively affect the structural integrity of the panel (which would be the case if the bevel is pressed).
  • the core board (also referred to herein as "board” for brevity) may be a board made from a wood-based material such as medium density fiberboard or high density fiberboard, particle board, oriented strand board or the like. However, it may also be made from a plastic material such as luxury vinyl tile (LVT), rigid polymer core or expanded polymer core, as well as mixed constructions widely used in the flooring industry. High density fiberboard (HDF) has been shown to allow good recyclability.
  • a wood-based material such as medium density fiberboard or high density fiberboard, particle board, oriented strand board or the like.
  • plastic material such as luxury vinyl tile (LVT), rigid polymer core or expanded polymer core, as well as mixed constructions widely used in the flooring industry.
  • High density fiberboard (HDF) has been shown to allow good recyclability.
  • the decorative print layer is applied to the carrier plate and to the at least one bevel, which is to be understood in such a way that the print layer can be seen from e.g. the top side when the plate is in a typical position, e.g. on a floor, wall, ceiling or the like.
  • This is to be understood in such a way that the print layer is applied to an upper surface of the plate.
  • the upper surface can be opposite a rear surface. This allows the print layer and the decorative aspect of the print layer to be seen.
  • the rear surface may be configured to be attached to a base surface, e.g., a wall, ceiling, or floor surface.
  • a base surface e.g., a wall, ceiling, or floor surface.
  • the rear surface may be provided with adhesives and/or mechanical attachment means.
  • the bevel as used herein can also be understood as a chamfer.
  • the bevel could mean that the edge of the plate is inclined when viewed in a cross-section perpendicular to a longitudinal extension of the plate.
  • the bevel may represent an empty space at the location where the edge of the plate was.
  • the bevel may have a constant inclination and/or be at least partially rounded and/or be composed of a combination thereof.
  • the plate typically has a longitudinal extension (length) and a width perpendicular to the longitudinal extension.
  • the edge of the plate is substantially parallel to the longitudinal extension.
  • the bevel is preferably applied along the entire length of the plate. As a result, the bevel is substantially parallel to the longitudinal extension of the plate.
  • the width of the plate is typically small compared to the length.
  • the panel is already formatted before the bevel is provided and before the decorative print layer is applied. This means that the panel can already be provided with a width that is suitable for a specific application.
  • the decorative print layer is substantially continuous at a transition of the plate and the at least one bevel.
  • the transition is to be understood as extending over a portion of an upper surface of the plate where no inclination is provided by means of the bevel, and also extending over a portion of the bevel along a width direction of the plate. Furthermore, the transition may also extend along the longitudinal extension/direction of the plate (length). Thus, in one example, the transition may comprise a substantially rectangular region (e.g., viewed from above).
  • the decorative printing layer comprises a decorative pattern that is substantially continuous at a transition of the plate and the at least one bevel.
  • the decorative pattern may imitate any desired surface that is appreciated by a user.
  • the decorative pattern may imitate a natural surface. It is advantageous that the pattern is continuous at the junction of the panel and the at least one bevel. As a result, substantially no surface/material variations and/or no variations in the pattern can distract a user. Furthermore, a continuous material quality is achieved on the entire panel.
  • the "entire" panel means the panel (eg, a top surface of the panel) and the bevel of the panel.
  • the at least one bevel has a width (w) perpendicular to the longitudinal extent of the plate and a depth (d) perpendicular to the upper surface of the plate, wherein the ratio w/d of the at least one bevel is at least 0.5, preferably at least 0.8, more preferably at least 1.2, more preferably at least 1.4, most preferably at least 1.6, and/or wherein the ratio w/d of the at least one bevel is at most 30, preferably at most 25, more preferably at most 20, more preferably at most 15, more preferably at most 10, more preferably at most 8, most preferably at most 6.
  • the width and the depth of the bevel can be understood as geometric properties of the bevel.
  • the geometric properties as specified herein have the advantage that the decorative print layer can be easily applied to the panel and the at least one bevel. This improves the adhesion of in particular a layer (e.g. the decorative print layer) to the bevel.
  • the bevel is typically constructed in such a way that it is difficult to reliably apply a layer.
  • one or more of the geometric properties of the chamfer described herein include lower and upper limits that can be combined into a range of a lower limit and an upper limit.
  • a lower limit may be greater than an upper limit.
  • the lower and upper limits are intended to be combined into a range in a technically reasonable manner. If a lower and upper limit are thereby to be combined to specify a range, the lower limit should be at least lower than the upper limit. As a result, the specified range includes technically reasonable values between the lower limit and the upper limit.
  • the ratio w/d is at least 2, preferably at least 3, more preferably at least 3.5, more preferably at least 4, most preferably at least 4.5. In another example, the ratio w/ d is at most 4, preferably at most 3, more preferably at most 2.5, more preferably at most 2, most preferably at most 1.8.
  • the at least one bevel has a width (w) perpendicular to the longitudinal extension of the plate of at least 0.2 mm, preferably at least 0.4 mm, more preferably at least 0.5 mm, more preferably at least 0.6 mm, most preferably at least 0.7 mm, and/or of at most 10 mm, preferably at most 8 mm, more preferably at most 6 mm, more preferably at most 5 mm, most preferably at most 4 mm.
  • the width (w) is at least 1.0 mm, preferably at least 1.4 mm, more preferably at least 1.8 mm, more preferably at least 2.2 mm, most preferably at least 2.6 mm.
  • the width (w) is at most 1.2 mm, preferably at most 1.1 mm, more preferably at most 1.0 mm, more preferably at most 0.95 mm, most preferably at most 0.9 mm.
  • the at least one bevel has a depth (d) perpendicular to the top side of the plate of at least 0.05 mm, preferably at least 0.1 mm, more preferably at least 0.15 mm, more preferably at least 0.2 mm, more preferably at least 0.3 mm, more preferably at least 0.35 mm, more preferably at least 0.4 mm, most preferably at least 0.45 mm, and/or the at least one bevel has a depth (d) perpendicular to the top side of the plate of at most 2.0 mm, preferably at most 1.6 mm, more preferably at most 1.2 mm, more preferably at most 0.8 mm, more preferably at most 0.6 mm, most preferably at most 0.55 mm.
  • the width and depth of the bevel can be understood as geometric characteristics of the bevel.
  • the specific values and ranges described herein contribute to the mechanical integrity of the panel.
  • conventional panels may be susceptible to abrasion near a bevel due to the geometric characteristics of conventional bevels.
  • the bevel as described herein facilitates the application of layers such as the decorative print layer to the panel and the at least one bevel.
  • a lacquer layer can be more easily applied to the panel by means of the geometric properties specified according to the present disclosure.
  • the at least one bevel has a rounded curvature.
  • the rounded curvature can be understood as a path, a spline and/or an arc.
  • the rounded curvature is not to be understood as describing the chamfer along the longitudinal extension (e.g. in a three-dimensional area).
  • the rounded curvature has a radius (r) of at least 0.5 mm, preferably at least 0.8 mm, more preferably at least 1 mm, more preferably at least 1.2 mm, most preferably at least 1.4 mm, and/or the rounded curvature has a radius (r) of at most 80 mm, preferably at most 60 mm, more preferably at most 40 mm, more preferably at most 35 mm, more preferably at most 30 mm, most preferably at most 29 mm.
  • the radius (r) is at least 10 mm, preferably at least 15 mm, more preferably at least 20 mm, more preferably at least 25 mm, most preferably at least 28 mm.
  • the radius (r) is at most 4 mm, preferably at most 2.5 mm, more preferably at most 2 mm, more preferably at most 1.8 mm, most preferably at most 1.6 mm.
  • the radius (r) is constant along the rounded curvature.
  • the rounded curvature of the bevel has the advantage that the application of a layer to the plate and to the at least one bevel is improved.
  • the layer can be applied more reliably.
  • the rounded curvature facilitates a larger amount, e.g. a layer of paint, to settle at the transition (of the plate and the at least one bevel).
  • the transition is thereby improved and can withstand major mechanical shocks.
  • the transition is typically subject to mechanical shocks, such as impacts resulting from objects/devices falling onto the panel and/or from a user's feet, depending on the panel's application.
  • the radius (r) as used herein is understood to be the radius of curvature of the rounded curvature.
  • the radius of an approximate circle at a certain point of the rounded curvature is the radius (r) as used herein.
  • the radius may not necessarily be constant along the rounded curvature. This is understood in such a way that when following the path of the rounded curvature, the radius (r) may vary. As an example, this may be the case when the rounded curvature is similar to an involute.
  • a constant radius of the rounded curvature means that the rounded curvature is a circular segment, with the segment angle being between 0° and 90°.
  • the rounded curvature has an acute angle (et) formed between two tangents of substantially opposite ends of the rounded curvature of at least 1°, preferably at least 2°, more preferably at least 4 ° , more preferably at least 5 ° , more preferably at least 6°, more preferably at least 7 ° , most preferably at least 8°, and/or of at most 65°, preferably at most 60°, more preferably at most 55° , more preferably at most 50°, more preferably at least 45 ° , more preferably at most 40°, most preferably at most 37 ° .
  • et acute angle
  • the rounded curvature has an acute angle (ß) formed between a tangent at substantially an outer end of the rounded curvature and the upper surface of the plate of at least 1°, preferably at least 2°, more preferably at least 4 ° , more preferably at least 5 ° , more preferably at least 6°, more preferably at least 7°, most preferably at least 8°, and/or of at most 65°, preferably at most 60°, more preferably at most 55 ° , more preferably at most 50°, more preferably at least 45 ° , more preferably at most 40°, most preferably at most 37 ° .
  • ß acute angle
  • the acute angle ( ⁇ and/or ⁇ ) is at most 25 ° , preferably at most 22 ° , more preferably at most 20°, more preferably at most 17 ° , more IO preferably at least 15 0 , more preferably at most 14 0 , most preferably at most 13 0 .
  • the acute angle ( ⁇ and/or ⁇ ) is at least 10°, preferably at least 15 ° , more preferably at least 20°, more preferably at least 25 ° , more preferably at least 30°, more preferably at least 35 ° , most preferably at least 37 ° .
  • the acute angle (ct and ß) and the radius (r) can be included in the geometric properties of the chamfer as described herein.
  • the advantages described with respect to the geometric properties also apply to the acute angle (ct and ß) and the radius (r).
  • the two tangents from substantially opposite ends are to be understood such that a tangent to the rounded curve is located at an outer end of the rounded curve.
  • the outer end of the rounded curve can be understood as the deepest point of the bevel, e.g. the point of greatest depth (d) of the bevel.
  • manufacturing tolerances usually have to be taken into account, which is expressed by the term "substantially”.
  • the tangents described herein to form acute angles may vary slightly in their location along the rounded curve.
  • the other tangent of the two tangents from substantially opposite ends is located on the rounded curve at an inner end of the rounded curve.
  • the inner end of the rounded curve can be understood as the location of the chamfer with the lowest value of depth (d).
  • outer end and inner end are described with reference to the plate such that the outer end faces away from the plate and the inner end faces the plate. It is understood that the outer end is located on the side surface of the plate.
  • the rounded curve is typically arranged such that the inner end of the rounded curve is aligned parallel to the top surface of the plate. This helps in providing a smooth transition from the top surface to the bevel.
  • the rounded curve may be arranged such that the tangent of the outer end of the rounded curve is aligned parallel to the side surface of the plate.
  • the rounded curve may be arranged such that be arranged so that the tangent of the outer end of the rounded curve forms an angle with the side surface of the plate.
  • the acute angle formed between the tangent at an outer end of the rounded curve and the upper surface of the plate is understood to be the acute angle between this tangent and an imaginary plane in extension of the upper surface. It may be possible for the tangent at the inner end of the rounded curve to be oriented parallel to the upper surface of the plate.
  • the geometric properties of the bevel described herein can also be determined/measured/derived from the panel on which one or more, in particular all, layers as described herein are applied.
  • the width (w), depth (d), ratio w/d, radius (r) and acute angle (et and/or ß) of the bevel can be determined/measured/derived from the bevel with the primer layer, the decorative print layer, the lacquer layer and/or the wear layer applied to the panel and to the bevel. This may be the case since the layers typically have a small thickness.
  • the panel further comprises a primer layer applied to the panel and to the at least one bevel, preferably directly below the decorative print layer as viewed from the panel.
  • the primer layer allows the decorative print layer to be applied with sufficient quality. This improves the application of the decorative print layer. It is understood that the primer layer is applied directly before (in the case of the manufacturing process) and/or directly below (structurally speaking and seen in the final product, i.e. the panel) the decorative print layer and also covers the bevel. This improves the application in the transition and the bevel in particular.
  • the panel further comprises a lacquer layer applied to the panel and to the at least one bevel, preferably directly above the decorative print layer as viewed from the panel.
  • the lacquer layer provides sufficient elasticity to compensate for deformation of the plate. It may also be possible to apply a lacquer layer based on a harder, i.e. less elastic, material. This can achieve higher resistance to impacts, scratches and/or chemicals. Suitable lacquer layers that can be used herein include, in a non-exhaustive list, corundum particles, acrylate, polymers, oligomers, additives and/or the like. Furthermore, the lacquer layer can be applied by means of flexography or any other type of application technique.
  • the panel further comprises a wear layer applied to the panel and to the at least one bevel, preferably directly above the lacquer layer as viewed from the panel; optionally, the wear layer is applied by means of melt lamination or glue lamination, wherein the wear layer is optionally based on cast polypropylene.
  • the wear layer has the advantage of further improving the protection of the panel.
  • the wear layer protects the decorative print layer.
  • the paint and wear layer applied to the panel and to the at least one bevel have the advantage of improving product quality, particularly in the transition, as described herein. As a result, substantially no deviations occur in the layers, as seen in a cross-section perpendicular to the longitudinal extension of the panel from the center of the panel to an outer end of the panel. This is advantageous compared to conventional panels and methods in which the bevel is machined after substantially all layers have been applied to a carrier panel.
  • the lacquer and the wear layer are applied on top of the decorative print layer, which means that the lacquer and the wear layer substantially do not directly contact the plate and/or the at least one bevel.
  • a layer such as the decorative layer
  • the decorative print layer contacts the primer layer and/or the plate and the bevel.
  • the lacquer layer preferably contacts the decorative Printing layer.
  • the wear layer preferably contacts the lacquer layer. This allows the layers to be applied to the panel and the at least one bevel in the following order as seen from the panel: optionally the primer layer, decorative printing layer, optionally the lacquer layer, optionally the wear layer.
  • the decorative print layer and/or the decorative pattern imitates a wood pattern.
  • the plate has a thickness (t) of at least 4 mm, preferably at least 5 mm, more preferably at least 6 mm, more preferably at least 7 mm, most preferably at least 7.5 mm, and/or of at most 12 mm, preferably at most 11 mm, more preferably at most 10 mm, more preferably at most 9 mm, most preferably at most 8 mm.
  • the plate has a width (wp) of at least 4 cm, preferably at least 5 cm, more preferably at least 6 cm, more preferably at least 7 cm, most preferably at least 8 cm, and/or of at most 200 cm, preferably at most 150 cm, more preferably at most 120 cm, more preferably at most 100 cm, more preferably at most 80 cm, more preferably at most 60 cm, more preferably at most 40 cm, more preferably at most 30 cm, more preferably at most 20 cm, most preferably at most 18 cm.
  • wp width of at least 4 cm, preferably at least 5 cm, more preferably at least 6 cm, more preferably at least 7 cm, most preferably at least 8 cm, and/or of at most 200 cm, preferably at most 150 cm, more preferably at most 120 cm, more preferably at most 100 cm, more preferably at most 80 cm, more preferably at most 60 cm, more preferably at most 40 cm, more preferably at most 30 cm, more preferably at most 20 cm, most preferably at most 18 cm.
  • these panel widths have proven to be small enough so that the panel can be used directly in a given application area without the need for further formatting into smaller widths.
  • the panel widths have proven to be large enough to facilitate machining the bevel on the panel and carrying out manufacturing steps (e.g. application of the layer(s)).
  • the decorative printing layer can be applied using rotogravure, flexography and/or digital printing. By using these printing technologies Higher quality prints can be achieved. In particular, digital printing facilitates the application of the layer in a substantially contactless manner.
  • the plate in the panel as described herein has two bevels, namely on both edges parallel to the longitudinal extension of the plate (e.g. on the edges on both side surfaces of the plate), wherein the ratio w/d is between 2 and 30, preferably between 6 and 20, most preferably between 7.5 and 15.
  • the ratio w/d is between 2 and 30, preferably between 6 and 20, most preferably between 7.5 and 15.
  • NALFA test is a standardized test procedure of the North American Laminate Flooring Association (NALFA). This test measures how a laminate floor behaves when its surface is exposed to standing water for about 24 hours. Before and after this time, the surface is measured at four different positions, for example, and the visual and tactile changes in the board are recorded and evaluated.
  • NALFA North American Laminate Flooring Association
  • a method for producing a panel comprising the following steps: providing a carrier board, such as a medium density fiber board (MDF), a high density fiber board (HDF) or a particle board; processing the board to provide the board with at least one bevel on at least one edge; applying a decorative print layer to the board and to the at least one bevel.
  • MDF medium density fiber board
  • HDF high density fiber board
  • the description of the panel refers to "a ... layer applied to "
  • the description of the method for producing a panel refers to "applying a ... layer”. This is the case because the panel comprises layers already applied/applied to the plate and to the at least one bevel, preferably systematically.
  • the method comprises a step of applying layers that are not necessarily connected during application. Also, during application of the Layers in the method for producing a panel, the layers may be at least partially viscous/liquid.
  • the features can thus also be combined and/or applied interchangeably to embodiments of the panel or the method.
  • Machining of the panel can be done by milling, which is appreciated because it does not negatively affect the structural integrity of the panel, which would be the case if the bevel is pressed.
  • the method and/or machining does not involve pressing the bevel. This has the advantage of improving the mechanical integrity and durability of the panel.
  • the applied decorative print layer is substantially continuous at a transition of the plate and the at least one bevel.
  • the decorative print layer comprises a decorative pattern and the decorative pattern is substantially continuous at a transition of the plate and the at least one bevel.
  • Respective advantages are described herein with respect to the panel.
  • the application of the decorative printing layer to the plate and to the at least one bevel is carried out substantially at the same time and/or no other process step is carried out therebetween.
  • the method comprises applying a primer layer to the plate and to the at least one bevel, preferably before the step of applying the decorative print layer and after the step of processing the plate.
  • the method comprises applying a lacquer layer to the plate and to the at least one bevel, preferably after the step of applying the decorative print layer.
  • the method comprises applying a wear layer to the plate and to the at least one bevel, preferably after the step of applying the lacquer layer; optionally applying the wear layer by means of melt lamination or glue lamination, wherein the wear layer is optionally based on cast polypropylene.
  • providing the carrier plate comprises formatting an initial carrier plate into one or more carrier plates.
  • an initial (large) plate is formatted into the panel.
  • the panel is suitable to be used directly in a respective application area.
  • no formatting is required, e.g. after machining and/or applying any layers to the panel. Further advantages are described herein with respect to the panel.
  • the method further comprises profiling the panel to provide a connection structure on at least one side surface of the panel, wherein the side surface is substantially parallel to a thickness of the panel, preferably before the step of applying the decorative printing layer.
  • the side surface of the plate is substantially perpendicular to the top surface of the plate.
  • Profiling facilitates that the plate can be connected to another plate, e.g. by form-fitting, or the like.
  • the connection structure allows the side surface to be configured to mate with a side surface of another plate in Profiling may also include providing a connecting structure on both side surfaces. It is understood that profiling is carried out before applying the decorative print layer, and preferably also before applying the optional primer layer. This facilitates that after applying the decorative print layer, the number of manufacturing steps is reduced, which ensures that the bevel is not negatively affected. Thus, the quality of the bevel is improved.
  • the decorative print layer and/or the decorative pattern imitates a wood pattern.
  • the plate has a thickness (t) of at least 4 mm, preferably at least 5 mm, more preferably at least 6 mm, more preferably at least 7 mm, most preferably at least 7.5 mm, and/or of at most 12 mm, preferably at most 11 mm, more preferably at most 10 mm, more preferably at most 9 mm, most preferably at most 8 mm.
  • the plate has a width (wp) of at least 4 cm, preferably at least 5 cm, more preferably at least 6 cm, more preferably at least 7 cm, most preferably at least 8 mm, and/or of at most 30 mm, preferably at most 25 mm, more preferably at most 22 mm, more preferably at most 20 mm, most preferably at most 18 mm.
  • a first embodiment is directed to the panel as described herein, wherein the at least one bevel has a width (w) perpendicular to the longitudinal extension of the panel and a depth (d) perpendicular to the upper surface of the panel, wherein the ratio w/d of the at least one bevel is at least 0.5, preferably at least 0.8, more preferably at least 1.2, more preferably at least 1.4, most preferably at least 1.6 (or 1.65), and/or at least 2, preferably at least 3, more preferably at least 3.5, more preferably at least 4, most preferably at least 4.5, and/or at most 30, preferably at most 25, more preferably at most 20, more preferably at most 15, more preferably at most 10, more preferably at most 8, most preferably at most 6, and/or at most 4, preferably at most 3, more preferably at most 2.5, more preferably at most 2, most preferably at most 1.8.
  • a second embodiment is directed to the panel as described herein, wherein the at least one bevel has a width (w) perpendicular to the longitudinal extension of the panel of at least 0.2 mm, preferably at least 0.4 mm, more preferably at least 0.5 mm, more preferably at least 0.6 mm, most preferably at least 0.7 mm, and/or at least 1.0 mm, preferably at least 1.4 mm, more preferably at least 1.8 mm, more preferably at least 2.2 mm, most preferably at least 2.6 mm, and/or at most 10 mm, preferably at most 8 mm, more preferably at most 6 mm, more preferably at most 5 mm, most preferably at most 4 mm, and/or at most 1.2 mm, preferably at most 1.1 mm, more preferably at most 1.0 mm, more preferably at most 0.95 mm, most preferably at most 0.9 mm.
  • a third embodiment is directed to the panel as described herein, wherein the rounded curvature has a radius (r) of at least 0.5 mm, preferably at least 0.8 mm, more preferably at least 1 mm, more preferably at least 1.2 mm, most preferably at least 1.4 mm, and/or of at least 10 mm, preferably at least 15 mm, more preferably at least 20 mm, more preferably at least 25 mm, most preferably at least 28 mm, and/or of at most 80 mm, preferably at most 60 mm, more preferably at most 40 mm, more preferably at most 35 mm, most preferably at most 29 mm, and/or of at most 4 mm, preferably at most 2.5 mm, more preferably at most 2 mm, more preferably at most 1.8 mm, most preferably at most 1.6 mm.
  • a fourth embodiment is directed to the panel as described herein, wherein the rounded curvature has an acute angle (et) formed between two tangents of substantially opposite ends of the rounded curvature of at least 1°, preferably at least 2°, more preferably at least 4°, more preferably at least 5°, more preferably at least 6°, more preferably at least 7°, most preferably at least 8°, and/or of at least 10°, preferably at least 15 ° , more preferably at least 20°, more preferably at least 25 ° , more preferably at least 30°, more preferably at least 35 ° , most preferably at least 37 ° , and/or of at most 65°, preferably at most 60°, more preferably at most 55 ° , more preferably at most 50°, more preferably at most 45 ° , more preferably at most 40°, most preferably at most 37 ° , and/or of at most 25 ° , preferably at most 22 °, more preferably at most 20°, more
  • a fifth embodiment is directed to the panel as described herein, wherein the rounded curvature has an acute angle (ß) formed between a tangent at substantially an outer end of the rounded curvature and the upper surface of the panel of at least 1°, preferably at least 2°, more preferably at least 4 ° , more preferably at least 5 ° , more preferably at least 6°, more preferably at least 7 ° , most preferably at least 8°, and/or of at least 10°, preferably at least 15 ° , more preferably at least 20°, more preferably at least 25 ° , more preferably at least 30°, more preferably at least 35 ° , most preferably at least 37 ° , and/or of at most 65°, preferably at most 60°, more preferably at most 55° , more preferably at most 50°, more preferably at least 45 ° , more preferably at most 40°, most preferably at most 37°.
  • ß acute angle
  • Fig. 1 shows a schematic cross-section of a plate according to an embodiment of the present disclosure
  • Fig. 2 shows the embodiment of Fig. 1 in a plan view
  • Fig. 3 shows a plan view of an exemplary panel according to the prior art
  • FIG. 4 shows a more detailed cross-section of a carrier plate and the chamfer according to an embodiment of the present disclosure, with dimensions of the plate and the chamfer highlighted;
  • Fig. 5 shows a more detailed cross-section of a carrier plate and the bevel according to the embodiment of Fig. 4, with further dimensions of the plate and the bevel highlighted;
  • Fig. 6 shows a more detailed cross-section of a carrier plate and the bevel according to the embodiment of Fig. 4, with further dimensions of the plate and the bevel being highlighted;
  • Fig. 7 shows a more detailed cross-section of a carrier plate and the bevel according to the embodiment of Fig. 4, with various dimensions of the plate and the bevel highlighted;
  • Fig. 8 shows a more detailed cross-section of a carrier plate and the bevel according to another embodiment compared to Fig. 7, with the dimensions of Fig. 7 highlighted;
  • Fig. 9 shows a schematic cross-section of a panel according to an embodiment of the present disclosure, comprising further layers.
  • FIG. 10 shows a diagram of an exemplary method according to the present disclosure.
  • reference numerals 4XX, 8XX and 9XX refer to the same elements as reference numerals XX.
  • some parts/elements have been varied, which is why a first numeral is introduced in these embodiments.
  • the figures may not be to scale, and the relative size, proportions and representation of elements in the figures may be exaggerated for clarity, illustration and convenience.
  • Fig. 1 shows a schematic cross section of a panel according to an embodiment of the present disclosure.
  • the panel 1 may be a wall, ceiling, furniture or floor panel.
  • the panel 1 comprises a carrier board 10, such as a medium density fiber (MDF) carrier board, a high density fiber (HDF) carrier board or a particle board.
  • the board 10 has at least one bevel 12 on at least one edge 11 of the board 10.
  • the panel 1 further comprises a decorative print layer 20 applied to the board 10 and to the at least one bevel 12.
  • the board 10 has a rear surface 17.
  • the rear surface 17 typically faces a floor, wall, ceiling or the like, depending on the field of application of the panel 1.
  • the decorative printing layer 20 is substantially continuous at a transition 13 of the plate 10 (e.g. the upper surface 15 of the plate) and the at least one bevel 12.
  • Fig. 2 shows the embodiment of Fig. 1 in a plan view.
  • the decorative print layer 20 comprises a decorative pattern 21 which is substantially continuous at the transition 13 of the plate 10 and the at least one bevel 12.
  • the width wp of the plate 10 is also indicated.
  • the Transition 13 comprises an area along the longitudinal extension L of the plate 10 and along the width wp of the plate 10.
  • the quality of the panel 1 is improved since there is essentially no difference between a material applied to the plate 10 and a material applied to the bevel 12. This also provides a tactile advantage due to the smooth transition of the same material on the plate 10 when viewed from a center of the plate 10 to an outside of the bevel 12, e.g. along the direction of the width wp.
  • Fig. 3 shows a top view of an exemplary panel ip according to the prior art.
  • the panel ip of the prior art comprises a carrier plate 10p.
  • the carrier plate 10p has a decorative print layer 20p with a decorative pattern 21p applied to the plate 10p.
  • the bevel 12p is provided with uniform varnish and/or coloring.
  • the bevel 12p is machined, for example, after the application of the decorative print layer 20p. It can be seen that the decorative print layer 20p and the decorative pattern 21p are not continuous at the transition 13p of the plate 10p and the at least one bevel 12p.
  • FIGS. 4 to 8 show a more detailed cross-section of a carrier plate 10 and the chamfer 12 according to one or more embodiments of the present disclosure, with dimensions of the plate 10 and the chamfer 12 highlighted.
  • the bevel 12 has a rounded curvature, i.e. seen in a cross section of the bevel 12 at right angles to the longitudinal extension L of the plate 10.
  • the rounded curvature is understood as a path, a spline and/or an arc.
  • the rounded curvature is not to be understood as having an extension in the longitudinal extension L of the plate 10.
  • Fig. 4 shows the width w of the at least one bevel 412 and the depth d of the at least one bevel.
  • the width w is perpendicular to the longitudinal extent L of the plate. It can also be said that the width w is perpendicular to the longitudinal extent L of an edge of the plate 410.
  • the depth d is perpendicular to the top surface 415 of the plate 410.
  • the ratio w/d of the at least one chamfer 412 is at least 0.5 and/or at most 30.
  • the plate 410 has a side surface 416 which is substantially parallel to the direction of the thickness t of the plate 410.
  • the thickness t of the plate 410 can be at least 4 mm and/or at most 12 mm.
  • Fig. 5 shows the embodiment of Fig. 4, highlighting further dimensions of the plate 10 and the bevel 412.
  • the rounded curvature of the bevel 412 has an acute angle a formed between two tangents ti, t2 of substantially opposite ends 412a, 412b of the rounded curvature of the bevel 412.
  • the outer end 412b faces away from the plate 410 and the inner end 412a faces the plate 410. It is understood that the outer end 412b is disposed on the side surface 416 of the plate 410.
  • Fig. 6 shows the embodiment of Fig. 4, highlighting further dimensions of the plate 410 and the bevel 412.
  • the rounded curvature has an acute angle ß formed between a tangent t2 at substantially an outer end 412b of the rounded curvature of the bevel 412 and the upper surface 415 of the plate 410.
  • the acute angle ß formed between the tangent t2 at an outer end 412b of the rounded curvature and the upper surface 415 of the plate 410 is understood to be the acute angle between this tangent t2 and an imaginary plane 415! in extension of the upper surface 415.
  • manufacturing tolerances must be taken into account when determining the geometric properties.
  • the imaginary plane 415! can help in determining the acute angle ß, since the imaginary plane 415! can be set up by placing a large auxiliary plate on top of the plate (e.g., including any layers) for determining the acute angle ß. Thus, this can allow the angle to be determined more easily compared to determining the tangent ti.
  • Fig. 7 shows the embodiment of Fig. 4, with further dimensions of the plate 410 and the bevel 412 highlighted.
  • the rounded curvature of the bevel 412 has a radius r, which can also be referred to as the radius of curvature.
  • the radius r can be determined by the radius of an approximate circle at a certain point of the rounded curvature.
  • the radius r of the rounded curve is not constant along the rounded curve. This means that as one follows the path of the rounded curve, the radius r varies. It can be seen that the radius ri at the inner end 412a of the rounded curve of the chamfer 412 is larger compared to the radius r2 at the outer end 412b of the rounded curve of the chamfer 412. However, in some cases it may be advantageous to keep the radius constant, as this may result in simplified manufacturing.
  • Fig. 8 shows a more detailed cross section of a carrier plate 810 and the chamfer 812 according to another embodiment compared to Fig. 7.
  • the radius r of the rounded curvature is constant along the rounded curvature.
  • the rounded curvature of the bevel 812 is preferably arranged such that the inner end 812a of the rounded curvature should be aligned parallel to the upper surface 815 of the plate 810. Moreover, the rounded curvature is arranged such that the tangent t2 of the outer end 12b of the rounded curvature forms an angle with the side surface 816 of the plate 810. Although not shown here, the rounded curvature may be arranged such that the tangent t2 of the outer end 12b of the rounded curvature is aligned parallel to the side surface 816 of the plate 810.
  • Fig. 9 shows a schematic cross section of a panel 1 according to an embodiment of the present disclosure, comprising further layers.
  • the panel 901 is similar to the embodiment of Fig. 1 and only the differences will be described.
  • the panel 901 further comprises a primer layer 19 applied to the plate 910 and to the at least one bevel 12, directly below the decorative print layer 20 as viewed from the plate 910.
  • the panel 901 further comprises a lacquer layer 22 applied to the plate 910 and to the at least one bevel 12, directly above the decorative print layer 20 as viewed from the plate 910.
  • the panel 901 further comprises a wear layer 23 applied to the plate 910 and to the at least one bevel 12, preferably directly above the lacquer layer 22 as viewed from the plate 910.
  • the layers above the decorative printing layer 20 are configured so that the decorative printing layer 20 and the decorative pattern 21 can be seen from above (eg, in a vertical direction from top to bottom in the figure).
  • the decorative printing layer 20 and the decorative pattern 21 can be seen when the panel 910 is in a typical position, e.g. on a floor, a wall, a ceiling or the like, depending on the field of application of the panel 901 with its rear surface 17.
  • the panel 1 also includes a connecting structure 30 on at least one side surface 16 of the plate 910.
  • the panel 1 of all embodiments described herein can advantageously be used not only as a floor, ceiling or wall panel, but also as a worktop or as a vertical surface, such as in furniture fronts or doors.
  • FIG. 10 shows a diagram of an example method 100 according to the present disclosure.
  • the method 100 for producing a panel comprises the following steps:
  • MDF medium density fiber board
  • HDF high density fiber board
  • particle board such as a particle board
  • providing 110 the carrier plate 10 includes formatting an initial carrier plate into one or more carrier plates 10.
  • the method 10 further comprises profiling the plate to provide a connection structure 30 on at least one side surface 16 of the plate 10, wherein the side surface 16 is substantially parallel to a thickness t of the plate 10, optionally the profiling step is performed before the step of applying 130 the decorative printing layer 20.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Finishing Walls (AREA)

Abstract

La présente invention concerne un panneau (1), en particulier un panneau mural, un panneau de plafond, un panneau de meuble ou un panneau de plancher. Ledit panneau comprend : un panneau de support (10), tel qu'un panneau de fibres à densité moyenne (MDF), un panneau de fibres à haute densité (HDF), ou un panneau de particules, ledit panneau (10) présentant au moins un biseau (12) sur au moins un bord (11) ; et une couche d'impression décorative (20) qui est appliquée sur le panneau (10) et sur l'au moins un biseau (12).
PCT/EP2022/086432 2022-12-16 2022-12-16 Panneau décoratif Ceased WO2024125809A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN202280102598.8A CN120359339A (zh) 2022-12-16 2022-12-16 装饰面板
EP22839748.5A EP4634470A1 (fr) 2022-12-16 2022-12-16 Panneau décoratif
PCT/EP2022/086432 WO2024125809A1 (fr) 2022-12-16 2022-12-16 Panneau décoratif

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2022/086432 WO2024125809A1 (fr) 2022-12-16 2022-12-16 Panneau décoratif

Publications (1)

Publication Number Publication Date
WO2024125809A1 true WO2024125809A1 (fr) 2024-06-20

Family

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PCT/EP2022/086432 Ceased WO2024125809A1 (fr) 2022-12-16 2022-12-16 Panneau décoratif

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EP (1) EP4634470A1 (fr)
CN (1) CN120359339A (fr)
WO (1) WO2024125809A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025056746A1 (fr) * 2023-09-15 2025-03-20 SWISS KRONO Tec AG Panneau de plancher avec joint, agencement de panneau de plancher et procédé de production
US20250367961A1 (en) * 2024-05-28 2025-12-04 Cfl Holding Limited Method for embedding at least one marker in a decorative design of a panel

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011138152A1 (fr) * 2010-05-05 2011-11-10 Fritz Egger Gmbh & Co. Og Lambris à bords biseautés et procédé de fabrication dudit lambris

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011138152A1 (fr) * 2010-05-05 2011-11-10 Fritz Egger Gmbh & Co. Og Lambris à bords biseautés et procédé de fabrication dudit lambris

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025056746A1 (fr) * 2023-09-15 2025-03-20 SWISS KRONO Tec AG Panneau de plancher avec joint, agencement de panneau de plancher et procédé de production
US20250367961A1 (en) * 2024-05-28 2025-12-04 Cfl Holding Limited Method for embedding at least one marker in a decorative design of a panel

Also Published As

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EP4634470A1 (fr) 2025-10-22
CN120359339A (zh) 2025-07-22

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