WO2025254582A1

WO2025254582A1 - A veneered element

Info

Publication number: WO2025254582A1
Application number: PCT/SE2025/050523
Authority: WO
Inventors: Darko Pervan; Jonas Fransson
Original assignee: Valinge Innovation AB
Current assignee: Valinge Innovation AB
Priority date: 2024-06-03
Filing date: 2025-06-02
Publication date: 2025-12-11
Anticipated expiration: 2026-12-03

Abstract

The present disclosure relates to a rectangular floor panel (1) with long and short edges comprising a surface layer (10) attached on a substrate (15), wherein the surface layer comprises a multistrip sheet (9) having at least three veneer strips (8a, 8b,8c), wherein each veneer strip extends from a short edge of the floor panel (1) to an opposite short edge of the floor panel (1), and wherein a width of one of the veneer strips (8a) is different from a widths of at least one of the other (8b, 8c) veneer strips.

Description

A VENEERED ELEMENT

Technical Field

The disclosure relates to a veneered element and a method of producing a veneered element.

Technical Background

Floor coverings having a wooden surface may be of several different types.

A veneered element, such as a floorboard, comprising a substrate, a sublayer, and a wood veneer surface, is disclosed in WO2015/105456 and WO201 7/188883.

In the above description, the different types of products have been described with reference to floorings. However, the same material and problems applies for other types of building panels such as wall panels, ceiling panels, and for furniture components.

Summary

It is an object of at least embodiments of the present invention to provide an improvement over the above-described techniques and known art.

A further object of at least embodiments of the present invention is to reduce the cost for producing surface with an attractive design.

A further object of at least embodiments of the present invention is to provide a wood veneer surface having the look of a solid wood surface.

A further object of at least embodiments of the present invention is to provide a veneer surface having an attractive design.

At least some of these and other objects and advantages that will be apparent from the description have been achieved by a veneered element, such as a rectangular floor panel with long and short edges comprising a surface layer attached on a substrate, wherein the surface layer comprises at least three veneer strips. Each veneer strips extends from a short edge of the floor panel to an opposite short edge of the floor panel, and wherein a width of one of the veneer strips is different from a width of at least one of the other veneer strips.

A thickness of the surface layer may be in the range of about 0.3 mm to about 1.5 mm, such as bout 0.5 mm to about 1 mm, such as about 0.6 mm to about 0.8 mm

The substrate may comprise a wood-based material, such as HDF, particleboard or plywood.

A width of one or more of the veneer strips may be in the range of about 2 mm to about 50 mm, such as about 5 mm to about 30 mm, such as about 10 mm to about 20 mm

A width of one of the veneer strips at a long edge of the floor panel may differ from the width of another of the veneer strip at an opposite long edge of the floor panel.

The surface layer may be connected to a sub-layer located between the substrate and the surface layer.

The sublayer layer may have a higher density than the substrate.

The floor panel may comprise a backing layer with at least two veneer strips with different widths extending from one short edge to an opposite short edge.

A width of the floor panel may be in the range of about 150 mm to about 300 mm.

A length of the floor panel may be in the range of about 1 000 mm to about 2 500 mm. A width of at least one of the veneer strips may be essentially the same along the length of that veneer strip.

A long edge of one of the veneer strips may be essentially parallel with a long edge of the floor panel.

The veneer strips may be wood veneer strips, such as oak veneer strips.

A width of one of the veneer strips at a long edge of the floor panel may be less than 75% of a width of another veneer strip at an opposite long edge of the floor panel.

The floor panel may comprise a mechanical locking system with a locking strip extending beyond an upper edge of the floor panel and wherein a width of the veneer strip at one edge of the floor panel is less than the extension of the locking strip.

Another aspect is rectangular floor panel with long and short edges comprising a surface layer attached on a substrate. The surface layer is a multistrip sheet which comprises veneer strips. The multistrip sheet comprises at least a first veneer strip and a second veneer strip, wherein a long edge of the first veneer strip is joined to a long edge of the second veneer strip. The first veneer strip and the second veneer strip extend from a short edge of the rectangular floor panel to an opposite short edge of the rectangular floor panel. A width of the first veneer strip is different from a width of the second veneer strips.

The long edge of the first veneer strip may be joined to the long edge of the second veneer strip by a glue, such as a polyvinyl acetate glue, by e.g. splicing.

The long edge of the first veneer strip may be joined to the long edge of the second veneer strip by a tape. The long edge of the first veneer strip may be joined to the long edge of the second veneer strip by stitching, such as laying a thread in a zig zag pattern across the back of the veneer.

Another aspect is a rectangular floor panel with long and short edges comprising a surface layer attached on a substrate, wherein the surface layer comprises at least three veneer strips, wherein each veneer strip extends from a short edge of the floor panel to an opposite short edge of the floor panel , wherein the floor panel comprises a mechanical locking system which is configured to lock the panel vertically and horizontally to another floor panel, and wherein three of the veneer strips have essentially the same with.

A further aspect of the invention is a method for producing a multistrip veneered panel, such as a floor panel, comprising:

• slicing veneers from a wood log,

• formatting the veneers to a first set of veneer strips with a first width and a first length and a second set of veneer strips with a second width and a second length, wherein the first width is different from the second width, and the first length is essentially the same as the second length, and

• splicing one or more of the veneer strips of the first set to one or more of the veneer strips of the second set to obtain a multistrip sheet,

• connecting the multistrip sheet to a substrate and forming a multistrip board, and

• cutting the multistrip board into multistrip elements such that the edges of the elements are essentially parallel with the veneer strips such that the width of a strip at one edge of the panel differs from the width of a strip at an opposite second edge of the panel.

The method may comprise processing of the edges such that a floor panel is formed comprising a mechanical locking system. The method may comprise applying a sub-layer between the multistrip sheet and the substrate.

The method may comprise splicing a first veneer strip of the first set to a second veneer strip of the second set.

The method may comprise matching the colour and/or the pattern of the first veneer strip to the colour and/or the pattern of the second veneer strip before the splicing.

A width or a length of the multistrip board may be essentially the same as the first length and the second length.

The method may comprise forming the multistrip elements into veneered panels such as floor panels, each panel comprising two or more, such as three, veneer strips.

One or more of the floor panels may comprise one of the veneer strips from the first set and one of the veneer strips from the second set.

Preferably, at least a portion of the sub-layer is visible at the surface of the veneer layer facing away from the substrate.

The substrate is preferably a prefabricated substrate such as a woodbased board. Preferably, the substrate is manufactured in a preceding manufacturing process.

The multistrip board may comprise a sub-layer and a multistrip sheet on the rear side to balance the board. The substrate is preferably connected with the upper and rear layers with heat and pressure that cure the sub-layers and compress the multistrip veneer sheet such that densified wood veneer layers are formed with better properties than the original veneer.

In an embodiment wherein the substrate is a board, the board and the multistrip sheet being bonded to the substrate form a veneered multistrip panel that may be used as a building component or a furniture component.

The veneered multistrip panel may be a floor panel, a ceiling panel, a wall panel, a door panel, a worktop, skirting boards, mouldings, edging profiles, etc. A multistrip element may be formed as a separate element comprising two multistrip sheets and an intermediate sub-layer, which later may be adhered to a substrate or a component. The substrate may be a multistrip sheet that is a carrier for the sub-layer and an upper multistrip sheet that forms the visible surface layer. Other carriers such as wood veneer, paper or non-woven materials may be used. The main advantage is that such element may be glued to a board material, for example a thermoplastic material, that cannot withstand the heat and pressure needed to cure the sub-layer.

Brief Description of the Drawings

The Embodiments of the invention will be described in the following: reference being made to the appended drawings which illustrate non-limiting embodiments of how the inventive concept can be reduced into practice.

FIGS. 1A-1 B illustrate parquet flooring.

FIGS. 2A-2D illustrate an embodiment of a method to produce veneer.

FIGS. 3A-3D illustrate embodiments of veneered products.

FIGS. 4A-4C illustrate embodiments of veneered products.

FIGS 5A-5E illustrate embodiments of veneered products and methods to form veneered products.

Detailed Description

Specific embodiments of the invention will now be described with reference to the accompanying drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. The terminology used in the detailed description of the embodiments illustrated in the accompanying drawings is not intended to be limiting of the invention. In the drawings, like numbers refer to like elements. Generally, in this disclosure, terms like “below” or “lower” typically implies closer to the back surface of the panel or a plane thereof, whereas “above” or “upper” implies closer to the front surface or a plane thereof. Further, the thickness direction of a panel or a layer is defined as the vertical direction when the panel lays flat on a surface. The horizontal and vertical directions are applicable definition when the panel is lays flat on, e.g., a floor.

FIG. 1 A shows an embodiment of a rectangular floor panel 1 , which is 1 -strip parquet floor panel. The embodiment includes one strips which covers the entire front face of the panel.

FIG. 1 B shows an embodiment of a rectangular floor panel 1 ’ which is a 3-strip parquet floor panel. The embodiment includes three strips in a width direction of the floor panel and several strips in a length direction of the panel.

FIG. 2A shows a vertical slicer comprising a knife 3, and a vertically moving slicing table 4. A part of a log, a so-called flitch 5, is attached to the slicing table 4 with two clamps 6a and 6b. The knife 3 cuts a thin veneer sheet 7 when the flitch is moved vertically up and down. FIG. 2B shows that the initial veneer sheets 7 at the outer part of the flitch 5 can only be used to produce narrow veneer strips 8 with a width of 50 - 100 mm.

FIGS. 2C and 2D shows that much wider veneer sheets 7 are produced when the knife 3 cuts closer to the slicing table 4. The wide veneer sheet 7 that may have a width of 400 - 600 mm and may be cut to strips such that a wide veneer strip 8a of 160 - 280 mm may be formed with a very attractive crown design 7a as shown in FIG 2D.

This wide veneer strip 8a may be used to produce long and wide floor panels comprising a densified and reinforced veneer layer, so called Woodura floors with a Woodura pattern having a 1 -strip design like 1 -strip parquet flooring. However, a considerable part of the veneer sheet 7 can only be used to produce two narrow parquet strips 8b and 8c which have a low value since they cannot be used to produce wide plank sized veneer floors with a so- called crown cut design 7a. FIG. 3A shows a top view of a multistrip sheet 9 which includes several veneer strips 8a, 8b, 8c, 8d with different widths 26, 27, 28. A long edge of a first veneer strip 8a is joined to a long edge of the a second veneer strip 8b.

The long edge of the first veneer strip 8a may be joined to the long edge of the second veneer strip 8b by a glue, such as a polyvinyl acetate glue, by e.g. splicing.

The long edge of the first veneer strip may be joined to the long edge of the second veneer strip by a tape.

The long edge of the first veneer strip may be joined to the long edge of the second veneer strip by stitching, such as laying a thread in a zig zag pattern across the back of the veneer.

A first veneer strip 8a may have a first width 26, a second veneer strip may have a second width 27, and a third veneer strip 8c may have a third width 28.

FIG. 3D shows in a side view that the multistrip sheet 9 may joined to a front face of a substrate 15, to form a multistrip board 11 .

The multistrip board 11 may comprise a balancing layer 21 at a back face of the substrate 15. The balancing layer may be a multistrip sheet.

FIG 3B shows a floor panel 1 with a multistrip surface layer 10 comprising several strips which extend from a short edge 22 to an opposite short edge 23.

The short edge 22, the opposite short edge 23, a long edge 24 and an opposite long edge 25 may comprise a mechanical locking system 2.

The mechanical locking system may be configured to join an edge of a floor panel 1 to an edge of another floor panel 1 in a horizontal and a vertical direction. The floor panel 1 may be produced by cutting the multistrip board 11 into several multistrip elements. The multistrip board 11 may be cut along the cutting lines 30, 31 indicated in FIG. 3A. The edges of the multistrip element may be processed to obtain the mechanical locking system 2.

FIG. 3C shows that the veneer strips 8a-8d of a floor panel 1a and a another floor panel 1b may be offset at a short edge of the floor panel 1a relative a short edge of the another panel 1b.

FIG 4A shows a top view of a portion of a multistrip board 11 . The multistrip board 11 may comprise a multistrip sheet 9 which may comprise three or more veneer strips 8a, 8b, 8c. The veneer strips may be joined together, such as spliced together. The multistrip sheet 9 may be attached to a substrate and cut along cutting lines 30, 31 to produce a multistrip element. The edges of the multistrip element may be machined between the cutting lines 30, 31 and processing lines 40, 41 shown in FIGS 4A-4C to form a locking system 2 of a floor panel 1 .

Each of the veneer strips of the multistrip sheet 9 may have essentially the same width or the widths 42, 43, 44 of the veneer strips 8a, 8b, 8c may be elected such that the width 45, 46, 47 of the veneer strips 8a, 8b, 8c of the floor panel 1 are essentially the same.

FIG. 4B shows in a top view a part of the floor panel 1 with the mechanical locking system 2.

FIG. 4C shows a cross section of a floor panel 1 with a mechanical locking system 2.

The initial widths 42, 44 of the veneer strips 8a, 8c of the multistrip sheet may be wider in positions which are intended to be long edges of a floor panel 1 . The widths 42, 44 are elected such that there is sufficient material to cut the multistrip sheet 9 into panels and to form a locking system 2 at the long edges. The multistrip surface layer 10 may comprise veneer strips with essentially the same width 42, 43, 44. With modern vision control systems, it is possible to position the large spliced multistrip sheet 9 with high precision on a substrate, such as a board, such as a wood-based board, prior to pressing. The alignment may be improved considerably if slicing is made in a climate-controlled area such that swelling and shrinking of the multistrip sheet 9 may be avoided.

The floor panel may have a backing veneer layer 21 comprising several veneer strips.

FIG 5A shows a top view of a portion of a multistrip board 11 . The multistrip board 11 comprises a multistrip sheet 9 with several veneer strips 8a, 8b, 8c, 8d. The widths 26, 27, 28, 29 of the veneer strips may differs from each other.

A long edge of a first veneer strip 8a may be joined to a long edge of a second veneer strip 8b by a glue, such as a polyvinyl acetate glue, by e.g. splicing.

A long edge of the first veneer strip may be joined to a long edge of the second veneer strip by a tape.

A long edge of a first veneer strip may be joined to a long edge of a second veneer strip by stitching, such as laying a thread in a zig zag pattern across the back of the veneer.

FIG. 5B shows a side view of the multistrip board 11 . The multistrip sheet 9 may be attached to a substrate 15.

The multistrip board 11 may be cut into several multistrip elements 12. An embodiment of a multistrip elements 12 is shown in a side view in in FIG. 5C. The multistrip board 11 may be cut along the cutting lines 30, 31 .

The multistrip element 12 may be processed to obtain floor panels 1 with a multistrip surface layer 10 comprising several veneer strips 8a, 8b, 8c, 8d with different widths 32, 33, 34, 35. The veneer strips may extend from a short edge of the floor panel 1 to an opposite short edge of the floor panel 1 . An embodiment of the floor panel 1 is shown in a cross-section view in FIG. 5D.

The floor panel 1 may comprise a mechanical locking system 2. Edges of the multistrip element 12 may be machined between the cutting lines 30, 31 and processing lines 40, 41 shown in FIGS 5A-5C to form the locking system 2.

FIG. 5D shows an embodiment of the floor panel 1 which comprises a locking system 2 at a long edge 24 of the floor panel and at an opposite long edge 25 of the floor panel.

The mechanical locking system 2 may be configured to join an edge of a floor panel 1 to an edge of another floor panel 1 in a horizontal and a vertical direction.

An advantage may be that it is not necessary to position the veneer strips. Another advantage may be a cost-efficient production method for producing a large multistrip board 11 in a first step which in a second step may be divided into several multistrip elements 12 which may be formed into veneered panels 13 such as floor panels 1 .

Each floor panel 1 may comprise a mechanical locking system 2 which comprises a locking strip 18 that extends beyond the upper edge 19 of the floor panel, as shown in FIG. 5D. Some panels in a floor may even have a veneer strip 8a at one edge with a width 32 which is smaller than the extension of the locking strip 18.

Such production method is very suitable to produce veneered floors and especially Woodura floors comprising a compressed and reinforced veneer layer and a high-density wood-based powder layer between the veneer and a HDF substrate. The width of the strips may vary, and splicing may be made with high quality such that the joints may be almost invisible. The two strips 8a and 8d at the long edges may have different widths.

FIGS. 2 - 5 show embodiments of a method of producing a multistrip veneered panel 13 such as a floor panel 1 .

Wood veneer sheets 7 are sliced from a wood log as shown in FIG.2a- 2d and formatted to a first set of veneer strips 8 with a first width and a first length and a second set of veneer strips with a second width and a second length, wherein the first width is different from the second width, and the first length is essentially the same as the second length. One or more of the veneer strips of the first set is spliced to one or more of the veneer strips of the second set to obtain a multistrip sheet 9 as shown in FIGS. 3A and 5A.

The multistrip sheet 9 is attached to a substrate 15 and a multistrip board 11 is formed as shown in FIGS. 3A and 5B. The multistrip board is divided into multistrip elements 12 such that the edges of the elements are essentially parallel with the veneer strips 8 as shown in FIG. 5C.

The edges of the multistrip element 12 are processed and a multistrip veneered panel 13 is formed such that a width of a veneer strip 8a at one edge of the panel differs from a width of a veneer strip 8d at an opposite second edge of the panel 13.

The method may comprise a processing of the edges of the multistrip element 12 such that a floor panel 1 is formed comprising two or more, such as three, veneer strips and a mechanical locking system 2 as shown in FIGS. 3B and 5D.

The method may comprise applying a sub-layer 14 between the multistrip sheet 9 and the substrate 15.

The method may comprise splicing a first veneer strip of the first set to a second veneer strip of the second set. The method may comprise matching the colour and/or the pattern of the first veneer strip to the colour and/or the pattern of the second veneer strip before the splicing.

A width or a length of the multistrip board 11 may be essentially the same as the first length and the second length off the veneer strips 8.

Preferably, at least a portion of the sub-layer 14 is visible at the surface of the veneer layer facing away from the substrate as shown in FIG. 5B.

The substrate 15 is preferably a prefabricated substrate such as a wood-based board. Preferably, the substrate is manufactured in a preceding manufacturing process.

The multistrip board may comprise a sub-layer 16 and a multistrip sheet 17 on the rear side to balance the board. The substrate is preferably connected with the upper and rear layers with heat and pressure that cure the sub-layers 14,16 and compress the multistrip veneer sheets 9,17 such that densified wood veneer layers are formed with better properties than the original veneer.

An embodiment comprises substrate which is a board, the board and the multistrip sheet being bonded to the substrate form a multistrip element that may be used as a building component or a furniture component. The veneered multistrip panel may be a floor panel, a ceiling panel, a wall panel, a door panel, a worktop, skirting boards, mouldings, edging profiles, etc.

In an embodiment, as shown in FIG.5E, the multistrip element 12 is formed as a separate element comprising two multistrip sheets 9,17, an upper sheet 9 and a lower sheet 17 and an intermediate sub-layer 14, which later may be adhered to a substrate or a component to form a veneered panel with veneer strips at the edges that have different widths. The lower multistrip sheet 9 is a substrate that is a carrier for the sub-layer and an upper multistrip sheet that forms the visible surface layer. Other carriers such as wood veneer, paper or non-woven materials may be used. The main advantage is that such element may be glued to a separate substrate, for example a thermoplastic material, that cannot withstand the heat and pressure needed to cure the sub-layer and to bond the multistrip sheet.

The substrate 15 may be a board, for example, a wood-based board. The wood-based board may be a wood fibre-based board such as MDF, HDF, particleboard etc., or a plywood board. In other embodiments, the substrate may be a Wood Plastic Composite (WPC). The substrate may be a mineral composite board. The substrate may be a fibre cement board. The substrate may be magnesium oxide cement board. The substrate may be a plastic board such as a thermoplastic board.

In the embodiment shown in FIG. 5B, the sub-layer 14 may be applied in powder form. The powder adapted to form the sub-layer 14 may be applied by scattering. The sub-layer may also be applied as granules. In other embodiments, the sub-layer 14 may be applied as a liquid, as a paste, a sheet, etc. The sub-layer 14 may be applied by roller coating, spraying, etc.

The sub-layer 14 may comprise a binder. The binder may be a thermosetting binder, a thermoplastic binder, or a combination thereof. The binder may be wood mastic, wood filler or any other type of putty-like paste. The thermosetting binder may be an amino resin such as melamine formaldehyde resin, phenol formaldehyde resin, urea formaldehyde resin, or a combination thereof. Urea formaldehyde resin may be used, alone or in combination with melamine formaldehyde resin, to reduce tension formed by the sub-layer 14 during curing, compared to when melamine formaldehyde resin is used only. The thermoplastic binder may be polyvinyl chloride (PVC), polyethylene (PE), polypropylene (PP), polyurethane (PU), polyvinyl alcohol (PVOH), polyvinyl butyral (PVB), polyvinyl acetate (PVAc), and/or thermoplastic elastomer (TPE), or a combination thereof. The sub-layer 14 may be applied in an amount of 200-600 g/m2, preferably 300-500 g/m2 such as about 400 g/m2. The amount of binder applied for the sub-layer 2 may be 100-300 g/m2, preferably 150-250 g/m2 such as about 200 g/m2. The sub-layer 2 may comprise the binder in an amount of 30-80 wt%, preferably in an amount of 40-60 wt% such as about 50 wt%.

More than one multistrip sheet 9 may be arranged on a substrate 15. In one embodiment, a first multistrip sheet may be arranged on the substrate with the first sub-layer of the above-described type, a second sub-layer of the above-described type is arranged on the first multistrip sheet, and a second multistrip sheet is arranged on the second sub-layer. A groove may be formed, for example after pressing, in the second multistrip sheet and in the second sub-layer such as the first multistrip layer is visible.

When the multistrip sheet is arranged on the sub-layer, pressure is applied to the multistrip sheet such that a fluid pressure is formed in the sublayer. The pressure may be applied by continuous press or in a discontinuous press. Preferably, heat is also applied.

When sufficient pressure is applied, the sub-layer 14 permeates through pores, cracks, and holes in the multistrip sheet. At least a portion of the sub-layer may permeate fully such that at least a portion of the sub-layer becomes visible on the multistrip sheet.

In an embodiment, a produced veneered panel 13 may be 6-25 mm thick, preferably 8-15 mm thick after pressing. The sub-layer may be 0.1-2 mm thick after pressing.

The veneered panel 13 may further be treated in different ways, for example brushed, oiled, lacquered, waxed, etc.

An embodiment of a method for producing a multistrip veneered panel, such as a floor panel, may comprise: slicing veneers from a wood log, such as a flitch 5, • formatting the veneers to a first set of veneer strips 8a with a first width and a first length and a second set of veneer strips 8b with a second width and a second length, wherein the first width is different from the second width, and the first length is essentially the same as the second length, and

• splicing one or more of the veneer strips 8a of the first set to one or more of the veneer strips 8b of the second set to obtain a multistrip sheet 9,

• connecting the multistrip sheet 9 to a substrate 15 and forming a multistrip board 11 , and

• cutting the multistrip board 11 into multistrip elements 12 such that the edges of the elements are essentially parallel with the veneer strips such that the width of a strip at one edge of the panel differs from the width of a strip at an opposite second edge of the panel.

The method may comprise processing of the edges such that a floor panel 1 is formed comprising a mechanical locking system 2.

A width or a length of the multistrip board 11 may be essentially the same as the first length and the second length.

The method may comprise forming the multistrip elements into veneered panels such as floor panels 1 , each panel comprising two or more, such as three, veneer strips 8a, 8b, 8c.

Further embodiments of a rectangular floor panel are described below:

1 . A rectangular floor panel 1 with long and short edges comprising a surface layer 10 attached on a substrate 15, wherein the surface layer 10 is a multistrip sheet 9 comprising at least three veneer strips 8a, 8b, 8c, wherein each veneer strip extends from a short edge of the floor panel 1 to an opposite short edge of the floor panel 1 , and wherein a width of one of the veneer strips 8a is different from a width of at least one of the other veneer strips 8b, 8c.

2. The rectangular floor panel 1 as described in embodiment 1 , wherein a thickness of the surface layer 10 is in the range of about 0.3 mm to about 1.5 mm, such as bout 0.5 mm to about 1 mm, such as about 0.6 mm to about 0.8 mm

3. The rectangular floor panel 1 as described in embodiment 1 or 2, wherein the substrate 15 comprises a wood-based material, such as HDF, particleboard or plywood.

4. The rectangular floor panel 1 as described in any of the embodiments 1-3, wherein a width of one or more of the veneer strips is in the range of about 2 mm to about 50 mm, such as about 5 mm to about 30 mm, such as about 10 mm to about 20 mm

5. The rectangular floor panel 1 as described in any of the embodiments 1-4, wherein a width of one of the veneer strips 8a at a long edge of the floor panel 1 differs from the width of another of the veneer strip 8d at an opposite long edge of the floor panel 1 .

6. The rectangular floor panel 1 as described in any of the embodiments 1-5, wherein the surface layer 10 is connected to a sub-layer 14 located between the substrate 15 and the surface layer 10.

7. The rectangular floor panel 1 as described in embodiment 6, wherein the sublayer layer 14 has a higher density than the substrate 15

8. The rectangular floor panel 1 as described in any of the embodiments 1-7, wherein the floor panel comprises a backing layer 17 with at least two veneer strips with different widths extending from one short edge to an opposite short edge. 9. The rectangular floor panel 1 as described in any of the embodiments 1-8, wherein a width of the floor panel 1 is in the range of about 150 mm to about 300 mm.

10. The rectangular floor panel 1 as described in any of the embodiments 1-9, wherein a length of the floor panel 1 is in the range of about 1 000 mm to about 2 500 mm.

11. The rectangular floor panel 1 a described in any of the embodiments 1-10, wherein a width of at least one of the veneer strips 8a, 8b,8cis essentially the same along the length of that veneer strip.

12. The rectangular floor panel 1 as described in any of the embodiments 1-

11 , wherein a long edge of one of the veneer strips 8a, 8b, 8c is essentially parallel with a long edge of the floor panel 1 .

13. The rectangular floor panel 1 as described in any of the embodiments 1-

12, wherein the veneer strips 8a, 8b, 8c, are oak veneer.

14. The rectangular floor panel 1 as described in any of the embodiments 1-

13, wherein a width of one of the veneer strips 8a at a long edge of the floor panel is less than 75% of a width of another veneer strip 8c at an opposite long edge of the floor panel 1 .

15. The rectangular floor panel 1 as described in any of the embodiments 1-

14, wherein the floor panel comprises a mechanical locking system 2 with a locking strip 18 extending beyond an upper edge 19 of the floor panel and wherein a width of the veneer strip 8a at one edge of the floor panel is less than the extension of the locking strip 18.

Claims

1 . A rectangular floor panel (1 ) with long and short edges comprising a surface layer (10) attached on a substrate (15), wherein the surface layer (10) is a multistrip sheet (9) which comprises veneer strips which comprises at least a first veneer strip (8a) and a second veneer strip (8b), wherein a long edge of the first veneer strip (8a) is joined to a long edge of the second veneer strip (8b), wherein the first veneer strip (8a) and the second veneer strip (8b) extend from a short edge (22) of the rectangular floor panel (1) to an opposite short edge (23) of the rectangular floor panel (1), and wherein a width of the first veneer strip (8a) is different from a width of the second veneer strips (8b).

2. The rectangular floor panel (1) as claimed in claim 1 , wherein the long edge of the first veneer strip (8a) is joined to the long edge of the second veneer strip (8b) by a glue, such as a polyvinyl acetate glue.

3. The rectangular floor panel (1) as claimed in claim 1 or 2, wherein a thickness of the surface layer (10) is in the range of about 0.3 mm to about

1 .5 mm, such as bout 0.5 mm to about 1 mm, such as about 0.6 mm to about 0.8 mm

4. The rectangular floor panel (1) as claimed in claim any of the claims 1-3, wherein the substrate (15) comprises a wood-based material, such as HDF, particleboard or plywood.

5. The rectangular floor panel (1) as claimed in any of the claims 1-4, wherein the width of the first veneer strip (8a) and the width of the second veneer strips (8b) is in the range of about 2 mm to about 50 mm, such as about 5 mm to about 30 mm, such as about 10 mm to about 20 mm.

6. The rectangular floor panel (1) as claimed in any of the claims 1-5, wherein the first veneer strip (8a) is positioned at a long edge of the rectangular floor panel (1 ), wherein the width of the first veneer strips (8a) differs from a width of another of the veneer strips (8d) at an opposite long edge of the rectangular floor panel (1 ).

7. The rectangular floor panel (1) as claimed in claims 6, wherein the width of the first veneer strips (8a) is less than 75% of the width of the another veneer strip (8d).

8. The rectangular floor panel (1) as claimed in any of the claims 1-7, wherein the surface layer (10) is joined to a sub-layer (14) located between the substrate (15) and the surface layer (10).

9. The rectangular floor panel (1) as claimed in claim 8, wherein the sublayer layer (14) has a higher density than the substrate (15)

10. The rectangular floor panel (1) as claimed in any of the claims 1-9, wherein the rectangular floor panel comprises a backing layer (17) with at least two veneer strips with different widths extending from one short edge to an opposite short edge.

11 . The rectangular floor panel (1 ) as claimed in any of the claims 1-10, wherein a width of the rectangular floor panel (1) is in the range of about 150 mm to about 300 mm.

12. The rectangular floor panel (1) as claimed in any of the claims 1-11 , wherein a length of the rectangular floor panel (1) is in the range of about 1 000 mm to about 2 500 mm.

13. The rectangular floor panel (1) as claimed in any of the claims 1-12, wherein a long edge of one of the veneer strips (8a, 8b, 8c) is essentially parallel with a long edge of the rectangular floor panel (1).

14. The rectangular floor panel (1) as claimed in any of the claims 1-12, wherein the veneer strips (8a, 8b, 8c), are oak veneer.

15. The rectangular floor panel (1) as claimed in any of the claims 1-14, wherein the rectangular floor panel comprises a mechanical locking system (2) with a locking strip (18) extending beyond an upper edge (19) of the rectangular floor panel, wherein the first veneer strip (8a) is positioned adjacent the upper edge (19), and wherein the width of the first veneer strip (8a) is less than the extension of the locking strip (18).