EP3938220B1 - Method for producing a material board - Google Patents

Method for producing a material board Download PDF

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Publication number
EP3938220B1
EP3938220B1 EP20712457.9A EP20712457A EP3938220B1 EP 3938220 B1 EP3938220 B1 EP 3938220B1 EP 20712457 A EP20712457 A EP 20712457A EP 3938220 B1 EP3938220 B1 EP 3938220B1
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EP
European Patent Office
Prior art keywords
image data
structured
colored
data set
pressing
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EP20712457.9A
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German (de)
French (fr)
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EP3938220A1 (en
Inventor
Berthold Thölen
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Hueck Rheinische GmbH
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Hueck Rheinische GmbH
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Publication of EP3938220A1 publication Critical patent/EP3938220A1/en
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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44F—SPECIAL DESIGNS OR PICTURES
    • B44F9/00—Designs imitating natural patterns
    • B44F9/02—Designs imitating natural patterns wood grain effects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44F—SPECIAL DESIGNS OR PICTURES
    • B44F9/00—Designs imitating natural patterns
    • B44F9/04—Designs imitating natural patterns of stone surfaces, e.g. marble

Definitions

  • the invention relates to a method for producing a material panel which has a structured, colored surface.
  • the EP 2 060 658 A2 discloses a press sheet with a textured press surface.
  • the textured press surface includes a texture that has a mountain-like surface with valleys and peaks.
  • a material panel with a structured surface can be produced by means of the pressed surface. If the structured surface of the material panel is colored, then it is desirable for the structure of the surface to match the colored pattern of the surface as precisely as possible, which is why synchronization that is as precise as possible is necessary during the pressing process. This is particularly important when the structured surface is associated with a wood pattern or a natural stone pattern, for example.
  • the EP 3 141 400 A1 discloses a method according to the preamble of claim 1.
  • the object of the invention is to specify a simpler method for producing a material panel that includes a structured, colored surface.
  • the pressing tool and the multiple image datasets are provided.
  • the pressing tool can be, for example, an embossing roller or an endless belt.
  • the pressing tool is preferably a pressing plate.
  • the structured pressing surface is assigned to the first image data set and was produced using the first image data set.
  • the structured pressing surface is not assigned to the at least one second image data set or was produced in particular without using the at least one second image data set.
  • the first and the at least one second image data record are assigned to different color channels of the colored digital image.
  • a color channel contains the information about the color components contained in the color digital image.
  • the number of color channels in a color digital image depends on the mode, color space or color model used.
  • the individual color channels include the color components of each pixel in the colored digital image.
  • the multiple color channels can be assigned to each pixel.
  • At least one second image data record is provided. Exactly one second image data set or a plurality of second image data sets can thus be provided.
  • the image data records are assigned to the selected color channels of the colored digital image.
  • the color digital image is an image of the original colored surface.
  • the colored source surface is, for example, a flat colored source surface or preferably a structured colored source surface.
  • the structure of the pressing surface is preferably assigned to the structure of the structured pressing surface.
  • the original surface is assigned, for example, to a wood pattern or a natural stone, in particular a structured wood pattern or a structured natural stone.
  • the first image data record is used to produce the structured pressing surface of the pressing tool.
  • the structured pressing surface in turn is intended to be pressed with the base support so that the base support receives the structured surface.
  • the base support comprises, for example, a base material panel or is designed as a base material panel that is provided with the colored surface. Before pressing with the pressing tool, this surface can be provided with a resin or with a plastic layer. This surface can be white or have a base color.
  • the base material panel comprises, for example, a natural material, in particular wood.
  • the base material board is e.g. chipboard or MDF board. This can be treated before direct printing. After printing, a resin can be applied or it is pressed with a resin-coated overlay.
  • the base material plate can also comprise a plastic.
  • the base support is, for example, a paper that is provided with the colored surface and, in particular, is impregnated with a resin before pressing and is optionally pressed with a support by means of the pressing tool.
  • the carrier comprises, for example, a wooden material.
  • the carrier is e.g. an MDF board or chipboard.
  • the base carrier is e.g. a base material foil, which is provided with the colored surface.
  • the base material film is made of plastic, for example, and in particular comprises a number of layers.
  • the associated material panel is then, for example, a so-called luxury vinyl tile (LVT).
  • the first image data record includes, in particular, information about the structuring of this original surface, which is accordingly transferred to the pressing surface and consequently to the material panel or to the base carrier.
  • the pressing tool or its pressing surface is produced without using the second image data set.
  • the structure of the pressing surface can be produced by removing material, for example by means of etching or multiple etching, as is the case, for example, with EP 2 060 658 A2 is known.
  • the structure of the pressing surface can also be produced by a material-applying process.
  • the structure of the press surface includes in particular the peaks and valleys or raised and lower areas.
  • the structured press surface can have a single gloss level or several different gloss levels.
  • the different degrees of gloss can be generated on the basis of the first image data set. Due to the gloss levels, it is possible to give the material panel a more natural appearance. This is particularly advantageous in the case of wooden or stone original surfaces.
  • the at least one second image data set is provided for coloring the structured surface of the material panel, which is why the first image data set is not used according to the invention for coloring the surface of the material panel, even if it can include information about the coloring of the original surface.
  • the color component of the structured, colored surface of the material panel contains no or only relatively little information about its structure, as a result of which the base support can be pressed with the pressing tool with a relatively large tolerance.
  • the material panel can be produced more quickly.
  • the structured surface of the material panel nevertheless has an at least sufficiently good appearance, which corresponds at least sufficiently well to the original surface.
  • the coloring of the structured, colored surface also includes significant information about the structure, as is the case with conventional methods for producing a material panel, then the base material carrier must be pressed with the pressing tool with greater accuracy so that the structure and its Coloring should run as synchronously as possible, which is what creates an acceptable overall impression of the finished pressed material panel.
  • the first image data set is further processed before it is used to produce the structured pressing surface, in particular its information content is reduced.
  • the surface of the base carrier can, for example, be printed with a digital color printer, for example using the at least second image data set and without using the first image data set.
  • the digital color printer is controlled using the at least one second image data set. If necessary, provision can be made for the at least one second image data set to be further processed before the surface is printed, for example by converting the at least one second image data set into color channels suitable for the digital color printer.
  • the surface of the base support can, for example, be colored using ink printing rollers.
  • the inking rollers are correspondingly colored and transferred using the at least second image data set and without using the first image data set.
  • the material panel includes, for example, a wood material.
  • the material panel is e.g. MDF panels or chipboard.
  • the material panel or the base support can, for example, comprise a synthetic material. This can be treated before direct printing. After printing, a resin can be applied or it is pressed with a resin-coated overlay.
  • the 1 shows the top view of a structured, colored original surface 1, which is associated with a natural wood pattern in the case of the present embodiment.
  • the colored original surface 1 can also be flat.
  • the structured, colored original surface 1 comprises in particular a colored pattern 2 and a structure 3 which is formed from deeper and raised areas in the original surface 1 .
  • the 2 shows a colored digital image 21 of the structured, colored original surface 1.
  • the color digital image 21 are in the 3 assigned image data 30 shown.
  • a first image data set 31 and at least one second image data set 32a, 32b, in the case of the present exemplary embodiment a plurality of second image data sets, are generated from the image data 30.
  • the first image data set 31 and the second image data sets 32a, 32b are each assigned to different color channels of the colored digital image 21.
  • the first image data set 31 is provided for the production of a pressing tool that has a structured pressing surface.
  • the pressing tool is, for example, one in the 4 shown pressing plate 41, which includes a structured pressing surface 42.
  • the pressing tool can also be an embossing roller with a structured pressing surface or an endless belt with a structured pressing surface.
  • the structured pressing surface 42 is assigned to the first image data set 31 or was produced using the first image data set 31 and without using the second image data sets 32a, 32a.
  • the first image data set 31 can be further processed before the production of the press plate 41 or its structured pressing surface 42, in particular can be reduced in such a way that, for example, a further processed first image data set 33 is produced.
  • the further processed first image data set 33 is used for the production of the press plate 41 or its press surface 42
  • the textured press surface 42 may have a single gloss level or multiple different gloss levels.
  • the different degrees of gloss can be generated on the basis of the first image data set 31 or the further processed first image data set 33 .
  • the structured pressing surface 42 is for producing a in the figure 5
  • Material plate 51 shown is provided, which includes a structured, colored surface 52 .
  • the material plate 51 is made of a plastic, for example, or comprises a wood material plate.
  • the relevant surface in the 6 Base material panel 61 shown is processed as an example of a base carrier using the second image data set 32 without using the first image data set 31 , so that the base material panel 61 is given a colored surface 62 .
  • the two second image datasets 32a, 32b are further processed beforehand, in particular manually further processed, so that further processed, second image datasets 34a, 34b are created, which are used for processing or printing the base material panel 61.
  • a digital color printer is used, for example, or appropriately colored ink printing rollers are used. If necessary, image data sets that are suitable for controlling the digital color printer can be automatically created from the second image data sets 32a, 32b or the further processed second image data sets 34a, 34b.
  • the colored surface 62 of the base material panel 61 is then provided with a resin or a plastic film and pressed with the pressing plate 41 or its structured pressing surface 42, so that the material panel 51 with its structured, colored surface 52 is produced.
  • the 7 13 shows a paper 71 with a colored surface 72 as a further example of a base carrier.
  • the relevant surface of a paper was processed using the second image data sets 32 without using the first image data set 31.
  • the two second image data sets 32a, 32b are further processed beforehand, in particular manually further processed, so that further processed, second image data sets 34a, 34b are created, which are used for processing or printing the paper 71.
  • a digital color printer is used, for example, or appropriately colored ink printing rollers are used. If necessary, image data sets that are suitable for controlling the digital color printer can be automatically created from the second image data sets 32a, 32b or the further processed second image data sets 34a, 34b.
  • the paper 71 is in particular impregnated with a resin and then pressed with a carrier 73 and using the pressing plate 41 or its structured pressing surface 42, so that the material panel 51 with its structured, colored surface 52 is produced.
  • the carrier 73 is made of a plastic, for example, or comprises a wood-based panel.
  • the material plate 51 can have another structured, colored surface. These two structured, colored surfaces are arranged opposite each other and are congruent.
  • two third image data sets can be generated from the two second image data sets (32a, 32) by axisymmetric mirroring of the two second image data sets (32a, 32).
  • a further colored surface can then be produced on the base carrier using the two third image data sets, the colored surface and the further colored surface being arranged congruently and opposite one another.
  • the additional colored surface of the base support is then pressed, e.g. using a structured pressing surface of an additional pressing tool, in order to obtain a material panel with the additional structured, colored surface.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Printing Methods (AREA)
  • Finished Plywoods (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Description

Die Erfindung betrifft ein Verfahren zum Herstellen einer Werkstoffplatte, die eine strukturierte, farbige Oberfläche aufweist.The invention relates to a method for producing a material panel which has a structured, colored surface.

Die EP 2 060 658 A2 offenbart ein Pressblech mit einer strukturierten Pressoberfläche. Die strukturierte Pressoberfläche umfasst eine Struktur, die eine gebirgsähnliche Oberfläche mit Tälern und Höhen aufweist. Mittels der Pressoberfläche kann eine Werkstoffplatte mit einer strukturierten Oberfläche hergestellt werden. Ist die strukturierte Oberfläche der Werkstoffplatte farbig, dann ist es wünschenswert, dass die Struktur der Oberfläche möglichst genau mit dem farbigen Muster der Oberfläche übereinstimmt, weshalb eine möglichst genaue Synchronisation während des Pressvorgangs nötig ist. Dies ist besonders dann wichtig, wenn die strukturierte Oberfläche z.B. einem Holzmuster oder einem Natursteinmuster zugeordnet ist. Die EP 3 141 400 A1 offenbart ein Verfahren gemäß dem Oberbegriff von Anspruch 1.the EP 2 060 658 A2 discloses a press sheet with a textured press surface. The textured press surface includes a texture that has a mountain-like surface with valleys and peaks. A material panel with a structured surface can be produced by means of the pressed surface. If the structured surface of the material panel is colored, then it is desirable for the structure of the surface to match the colored pattern of the surface as precisely as possible, which is why synchronization that is as precise as possible is necessary during the pressing process. This is particularly important when the structured surface is associated with a wood pattern or a natural stone pattern, for example. the EP 3 141 400 A1 discloses a method according to the preamble of claim 1.

Die Aufgabe der Erfindung ist es, ein einfacheres Verfahren zum Herstellen einer Werkstoffplatte anzugeben, die eine strukturierte, farbige Oberfläche umfasst.The object of the invention is to specify a simpler method for producing a material panel that includes a structured, colored surface.

Die Aufgabe der Erfindung wird gelöst durch ein Verfahren zum Herstellen einer Werkstoffplatte, die eine strukturierte, farbige Oberfläche aufweist, aufweisend folgende Verfahrensschritte:

  • Bereitstellen von Bilddaten, die einem farbigen Digitalbild einer farbigen Ursprungsoberfläche zugeordnet sind,
  • aus den Bilddaten, Erzeugen eines ersten Bilddatensatzes und wenigstens eines zweiten Bilddatensatzes, die jeweils unterschiedlichen Farbkanälen des farbigen Digitalbildes zugeordnet sind,
  • Herstellen einer farbigen Oberfläche auf einem Grundträger unter Verwendung des wenigstens einen zweiten Bilddatensatzes ohne Verwendung des ersten Bilddatensatzes, und
  • Verpressen der farbigen Oberfläche des Grundträgers mittels einer strukturierten Pressoberfläche eines Presswerkzeugs, um die Werkstoffplatte mit der strukturierten, farbigen Oberfläche zu erhalten, wobei die strukturierte Pressoberfläche unter Verwendung des ersten Bilddatensatzes hergestellt wurde und somit dem ersten Bilddatensatz zugeordnet ist.
The object of the invention is achieved by a method for producing a material panel that has a structured, colored surface, having the following method steps:
  • Providing image data that is assigned to a colored digital image of a colored original surface,
  • from the image data, generating a first image data set and at least one second image data set, which are each assigned to different color channels of the colored digital image,
  • producing a colored surface on a base carrier using the at least one second image data set without using the first image data set, and
  • Pressing the colored surface of the base support using a structured pressing surface of a pressing tool in order to obtain the material panel with the structured, colored surface, the structured pressing surface having been produced using the first image data set and thus being assigned to the first image data set.

Eine beispielshafte Anwendung der Erfindung betrifft ein System zum Herstellen einer Werkstoffplatte, die eine strukturierte, farbige Oberfläche aufweist, aufweisend

  • ein Presswerkzeug, das eine strukturierte Pressoberfläche aufweist, welche unter Verwendung eines ersten Bilddatensatzes hergestellt wurde, und
  • wenigstens einen zweiten Bilddatensatz, der vorgesehen ist, ohne Verwendung des ersten Bilddatensatzes eine farbige Oberfläche auf einem Grundträger herzustellen,
wobei der erste Bilddatensatz und der wenigstens eine zweite Bilddatensatz jeweils unterschiedlichen Farbkanälen eines farbigen Digitalbildes einer farbigen Ursprungsoberfläche zugeordnet sind, und das Presswerkzeug eingerichtet ist, mittels seiner strukturierten Pressoberfläche die farbige Oberfläche des Grundträgers zu verpressen, um die Werkstoffplatte mit der strukturierten, farbigen Oberfläche zu erhalten.An exemplary application of the invention relates to a system for producing a material panel which has a structured, colored surface
  • a pressing tool that has a structured pressing surface that was produced using a first image data set, and
  • at least one second image data set, which is intended to produce a colored surface on a base carrier without using the first image data set,
wherein the first image data record and the at least one second image data record are each assigned to different color channels of a colored digital image of a colored original surface, and the pressing tool is set up to press the colored surface of the base carrier by means of its structured pressing surface in order to form the material panel with the structured, colored surface receive.

Demnach sind das Presswerkzeug und die mehreren Bilddatensätze vorgesehen.Accordingly, the pressing tool and the multiple image datasets are provided.

Das Presswerkzeug kann z.B. eine Prägewalze oder ein Endlosband sein. Das Presswerkzeug ist vorzugsweise ein Pressblech.The pressing tool can be, for example, an embossing roller or an endless belt. The pressing tool is preferably a pressing plate.

Die strukturierte Pressoberfläche ist dem ersten Bilddatensatz zugeordnet und wurde unter Verwendung des ersten Bilddatensatzes hergestellt. Die strukturierte Pressoberfläche ist insbesondere nicht dem wenigstens einen zweiten Bilddatensatz zugeordnet bzw. wurde insbesondere ohne Verwendung des wenigstens einen zweiten Bilddatensatzes hergestellt.The structured pressing surface is assigned to the first image data set and was produced using the first image data set. In particular, the structured pressing surface is not assigned to the at least one second image data set or was produced in particular without using the at least one second image data set.

Der erste und der wenigstens eine zweite Bilddatensatz sind unterschiedlichen Farbkanälen des farbigen Digitalbildes zugeordnet.The first and the at least one second image data record are assigned to different color channels of the colored digital image.

Ein Farbkanal umfasst die Informationen über die im farbigen Digitalbild enthaltenen Farbkomponenten. Insbesondere ist die Anzahl der Farbkanäle in einem farbigen Digitalbild abhängig vom verwendeten Modus, Farbraum bzw. Farbmodell.A color channel contains the information about the color components contained in the color digital image. In particular, the number of color channels in a color digital image depends on the mode, color space or color model used.

Die einzelnen Farbkanäle umfassen insbesondere die Farbanteile jedes Bildpunktes im farbigen Digitalbild. Jedem Bildpunkt können die mehreren Farbkanäle zugeordnet sein.In particular, the individual color channels include the color components of each pixel in the colored digital image. The multiple color channels can be assigned to each pixel.

Erfindungsgemäß ist wenigstens ein zweiter Bilddatensatz vorgesehen. Somit kann genau ein zweiter Bilddatensatz oder mehrere zweite Bilddatensätze vorgesehen sein.According to the invention, at least one second image data record is provided. Exactly one second image data set or a plurality of second image data sets can thus be provided.

Die Bilddatensätze sind, wie bereits ausgeführt, den gewählten Farbkanälen des farbigen Digitalbildes zugeordnet. Das farbige Digitalbild ist ein Bild von der farbigen Ursprungsoberfläche. Die farbige Ursprungsoberfläche ist z.B. eine ebene farbige Ursprungsoberfläche oder vorzugsweise eine strukturierte farbige Ursprungsoberfläche. Die Struktur der Pressoberfläche ist vorzugsweise der Struktur der strukturierten Pressoberfläche zugeordnet.As already explained, the image data records are assigned to the selected color channels of the colored digital image. The color digital image is an image of the original colored surface. The colored source surface is, for example, a flat colored source surface or preferably a structured colored source surface. The structure of the pressing surface is preferably assigned to the structure of the structured pressing surface.

Die Ursprungsoberfläche ist z.B. einem Holzmuster oder einem Naturstein, insbesondere einem strukturierten Holzmuster oder einem strukturierten Naturstein zugeordnet.The original surface is assigned, for example, to a wood pattern or a natural stone, in particular a structured wood pattern or a structured natural stone.

Der erste Bilddatensatz wird für die Herstellung der strukturierten Pressoberfläche des Presswerkzeugs verwendet. Die strukturierte Pressoberfläche wiederum ist vorgesehen, mit dem Grundträger verpresst zu werden, damit der Grundträger die strukturierte Oberfläche erhält.The first image data record is used to produce the structured pressing surface of the pressing tool. The structured pressing surface in turn is intended to be pressed with the base support so that the base support receives the structured surface.

Der Grundträger umfasst z.B. eine Grundwerkstoffplatte bzw. ist als eine Grundwerkstoffplatte ausgebildet, die mit der farbigen Oberfläche versehen wird. Diese Oberfläche kann vor dem Verpressen mit dem Presswerkzeug mit einem Harz oder mit einer Kunststoffschicht versehen werden. Diese Oberfläche kann weiß oder mit einer Grundfarbe versehen sein.The base support comprises, for example, a base material panel or is designed as a base material panel that is provided with the colored surface. Before pressing with the pressing tool, this surface can be provided with a resin or with a plastic layer. This surface can be white or have a base color.

Die Grundwerkstoffplatte umfasst z.B. ein natürliches Material, insbesondere Holz. Die Grundwerkstoffplatte ist z.B. eine Spanplatte oder eine MDF-Platte. Diese kann vor dem direkten Bedrucken noch behandelt werden. Nach dem Bedrucken kann noch ein Harz aufgetragen werden oder es wird mit einem beharzten Overlay verpresst. Die Grundwerkstoffplatte kann auch einen Kunststoff umfassen.The base material panel comprises, for example, a natural material, in particular wood. The base material board is e.g. chipboard or MDF board. This can be treated before direct printing. After printing, a resin can be applied or it is pressed with a resin-coated overlay. The base material plate can also comprise a plastic.

Der Grundträger ist z.B. ein Papier, das mit der farbigen Oberfläche versehen ist und insbesondere vor dem Verpressen mit einem Harz getränkt wird und gegebenenfalls mit einem Träger mittels des Presswerkzeugs verpresst wird. Der Träger umfasst z.B. einen Holzwerkstoff. Der Träger ist z.B. eine MDF-Platte oder eine Spanplatte.The base support is, for example, a paper that is provided with the colored surface and, in particular, is impregnated with a resin before pressing and is optionally pressed with a support by means of the pressing tool. The carrier comprises, for example, a wooden material. The carrier is e.g. an MDF board or chipboard.

Der Grundträger ist z.B. eine Grundwerkstofffolie, die mit der farbigen Oberfläche versehen wird. Die Grundwerkstofffolie ist z.B. aus Kunststoff und umfasst insbesondere mehrere Schichten. Die dazugehörige Werkstoffplatte ist dann z.B. eine sogenannte Luxuriöse Vinylfliese (LVT).The base carrier is e.g. a base material foil, which is provided with the colored surface. The base material film is made of plastic, for example, and in particular comprises a number of layers. The associated material panel is then, for example, a so-called luxury vinyl tile (LVT).

Der erste Bilddatensatz umfasst im Falle der strukturierten Ursprungsoberfläche insbesondere eine Information über die Strukturierung dieser Ursprungsoberfläche, die demnach auf die Pressoberfläche und demzufolge auf die Werkstoffplatte bzw. auf den Grundträger übertragen wird. Insbesondere wird das Presswerkzeug bzw. dessen Pressoberfläche ohne Verwendung des zweiten Bilddatensatzes hergestellt.In the case of the structured original surface, the first image data record includes, in particular, information about the structuring of this original surface, which is accordingly transferred to the pressing surface and consequently to the material panel or to the base carrier. In particular, the pressing tool or its pressing surface is produced without using the second image data set.

Die Struktur der Pressoberfläche kann abtragend z.B. mittels Ätzens oder mehrfachem Ätzens hergestellt werden, wie es z.B. aus der EP 2 060 658 A2 bekannt ist. Die Struktur der Pressoberfläche kann auch durch ein materialauftragendes Verfahren hergestellt werden. Die Struktur der Pressoberfläche umfasst insbesondere die Höhen und die Täler bzw. erhabene und tieferliegende Bereiche.The structure of the pressing surface can be produced by removing material, for example by means of etching or multiple etching, as is the case, for example, with EP 2 060 658 A2 is known. The structure of the pressing surface can also be produced by a material-applying process. The structure of the press surface includes in particular the peaks and valleys or raised and lower areas.

Die strukturierte Pressoberfläche kann einen einzigen Glanzgrad oder mehrere unterschiedliche Glanzgrade aufweisen. Die unterschiedlichen Glanzgrade können aufgrund des ersten Bilddatensatzes erzeugt werden. Aufgrund der Glanzgrade ist es möglich, der Werkstoffplatte eine natürlichere Erscheinung zu verleihen. Dies ist insbesondere bei hölzernen oder steinernen Ursprungsoberflächen vorteilhaft.The structured press surface can have a single gloss level or several different gloss levels. The different degrees of gloss can be generated on the basis of the first image data set. Due to the gloss levels, it is possible to give the material panel a more natural appearance. This is particularly advantageous in the case of wooden or stone original surfaces.

Der wenigstens eine zweite Bilddatensatz ist für die Farbgebung der strukturierten Oberfläche der Werkstoffplatte vorgesehen, weshalb erfindungsgemäß der erste Bilddatensatz für die Farbgebung der Oberfläche der Werkstoffplatte nicht verwendet wird, auch wenn dieser eine Information über die Farbgebung der Ursprungsoberfläche umfassen kann. Dadurch umfasst der Farbanteil der strukturierten, farbigen Oberfläche der Werkstoffplatte keine oder nur eine relativ geringe Information über deren Strukturierung, wodurch das Verpressen des Grundträgers mit dem Presswerkzeug mit einer relativ großen Toleranz erfolgen kann. Dadurch kann die Werkstoffplatte schneller hergestellt werden. Die strukturierte Oberfläche der Werkstoffplatte hat trotzdem ein zumindest ausreichend gutes Erscheinungsbild, welche zumindest ausreichend gut der Ursprungsoberfläche entspricht.The at least one second image data set is provided for coloring the structured surface of the material panel, which is why the first image data set is not used according to the invention for coloring the surface of the material panel, even if it can include information about the coloring of the original surface. As a result, the color component of the structured, colored surface of the material panel contains no or only relatively little information about its structure, as a result of which the base support can be pressed with the pressing tool with a relatively large tolerance. As a result, the material panel can be produced more quickly. The structured surface of the material panel nevertheless has an at least sufficiently good appearance, which corresponds at least sufficiently well to the original surface.

Umfasst dagegen die Farbgebung der strukturierten, farbigen Oberfläche auch eine signifikante Information über die Strukturierung, wie dies bei konventionellen Verfahren zum Herstellen einer Werkstoffplatte der Fall ist, dann muss das Verpressen des Grundwerkstoffträgers mit dem Presswerkzeug mit einer höheren Genauigkeit erfolgen, damit die Strukturierung und deren Farbgebung möglichst synchron verlaufen, wodurch erst ein akzeptabler Gesamteindruck der fertig verpressten Werkstoffplatte entsteht.If, on the other hand, the coloring of the structured, colored surface also includes significant information about the structure, as is the case with conventional methods for producing a material panel, then the base material carrier must be pressed with the pressing tool with greater accuracy so that the structure and its Coloring should run as synchronously as possible, which is what creates an acceptable overall impression of the finished pressed material panel.

Um insbesondere den Grad der Strukturierung der Pressoberfläche anzupassen, insbesondere zu verringern, kann es vorgesehen sein, dass der ersten Bilddatensatz vor dem Verwenden zum Herstellen der strukturierten Pressoberfläche weiterverarbeitet wird, insbesondere deren Informationsgehalt reduziert wird.In order in particular to adjust the degree of structuring of the pressing surface, in particular to reduce it, it can be provided that the first image data set is further processed before it is used to produce the structured pressing surface, in particular its information content is reduced.

Die Oberfläche des Grundträgers kann z.B. unter Verwendung des wenigstens zweiten Bilddatensatzes und ohne Verwendung des ersten Bilddatensatzes z.B. mit einem Digitalfarbdrucker bedruckt werden. In diesem Fall wird der Digitalfarbdrucker mittels des wenigstens einen zweiten Bilddatensatzes angesteuert. Gegebenenfalls kann es vorgesehen sein, dass der wenigstens eine zweite Bilddatensatz vor dem Bedrucken der Oberfläche weiterverarbeitet wird, indem z.B. der wenigstens eine zweite Bilddatenansatz in für den Digitalfarbdrucker geeignete Farbkanäle umgewandelt wird.The surface of the base carrier can, for example, be printed with a digital color printer, for example using the at least second image data set and without using the first image data set. In this case, the digital color printer is controlled using the at least one second image data set. If necessary, provision can be made for the at least one second image data set to be further processed before the surface is printed, for example by converting the at least one second image data set into color channels suitable for the digital color printer.

Die Oberfläche des Grundträgers kann z.B. mittels Farbdruckwalzen gefärbt werden. Die Farbdruckwalzen werden unter Verwendung des wenigstens zweiten Bilddatensatzes und ohne Verwendung des ersten Bilddatensatzes entsprechend gefärbt und übertragen.The surface of the base support can, for example, be colored using ink printing rollers. The inking rollers are correspondingly colored and transferred using the at least second image data set and without using the first image data set.

Die Werkstoffplatte umfasst z.B. einen Holzwerkstoff. Die Werkstoffplatte ist z.B. MDF-Platten oder Spanplatten.The material panel includes, for example, a wood material. The material panel is e.g. MDF panels or chipboard.

Die Werkstoffplatte bzw. der Grundträger können z.B. ein Kunstmaterial umfassen. Dieses kann vor dem direkten Bedrucken noch behandelt werden. Nach dem Bedrucken kann noch ein Harz aufgetragen werden oder es wird mit einem beharzten Overlay verpresst.The material panel or the base support can, for example, comprise a synthetic material. This can be treated before direct printing. After printing, a resin can be applied or it is pressed with a resin-coated overlay.

Die Werkstoffplatte kann zusätzlich zur strukturierten, farbigen Oberfläche eine weitere strukturierte, farbige Oberfläche aufweisen. Diese beiden strukturierten, farbigen Oberflächen sind gegenüberliegend angeordnet und deckungsgleich. Um die weitere strukturierte, farbige Oberfläche zu erhalten, können folgende Verfahrensschritte durchgeführt werden:

  • Erzeugen wenigstens eines dritten Bilddatensatzes aus dem wenigstens einen zweiten Bilddatensatzes durch achsensymmetrisches Spiegeln des wenigstens einen zweiten Bilddatensatzes,
  • Herstellen einer weiteren farbigen Oberfläche auf dem Grundträger unter Verwendung des wenigstens einen dritten Bilddatensatzes ohne Verwendung des ersten Bilddatensatzes, wobei die farbige Oberfläche und die weitere farbige Oberfläche deckungsgleich und gegenüberliegend angeordnet sind, und
  • Verpressen der weiteren farbigen Oberfläche des Grundträgers mittels einer strukturierten Pressoberfläche eines weiteren Presswerkzeugs, um eine Werkstoffplatte mit einer weiteren strukturierten, farbigen Oberfläche zu erhalten, die zur strukturierten, farbigen Oberfläche deckungsgleich und gegenüberliegend angeordnet ist, wobei die strukturierte Pressoberfläche dem ersten Bilddatensatz zugeordnet ist, jedoch derart achsensymmetrisch bezüglich der Pressoberfläche des Presswerkzeugs ist, sodass die strukturierte, farbige Oberfläche und die weitere strukturierte, farbige Oberfläche deckungsgleich sind.
In addition to the structured, colored surface, the material panel can have another structured, colored surface. These two structured, colored surfaces are arranged opposite each other and are congruent. In order to obtain the further structured, colored surface, the following process steps can be carried out:
  • Generating at least one third image data set from the at least one second image data set by axisymmetric mirroring of the at least one second image data set,
  • Production of another colored surface on the base carrier using the at least one third image data set without using the first image data set, the colored surface and the further colored surface being arranged congruently and opposite one another, and
  • Pressing the further colored surface of the base support by means of a structured pressing surface of a further pressing tool in order to obtain a material panel with a further structured, colored surface which is arranged congruently and opposite to the structured, colored surface, the structured pressing surface being assigned to the first image data set, however, is axially symmetrical with respect to the pressing surface of the pressing tool, so that the structured, colored surface and the further structured, colored surface are congruent.

Ausführungsbeispiele der Erfindung sind exemplarisch in den beigefügten schematischen Figuren dargestellt. Es zeigen:

Fig. 1
eine Draufsicht einer strukturierten, farbigen Ursprungsoberfläche,
Fig. 2
eine Draufsicht eines farbigen Digitalbildes der strukturierten, farbigen Ursprungsoberfläche,
Fig. 3
dem farbigen Digitalbild zugeordnete Bilddaten,
Fig. 4
ein Pressblech mit einer strukturierten Pressoberfläche,
Fig. 5
eine Werkstoffplatte,
Fig. 6
eine Grundwerkstoffplatte, und
Fig. 7
ein Papier und einen Träger.
Exemplary embodiments of the invention are shown in the accompanying schematic figures. Show it:
1
a top view of a textured, colored source surface,
2
a top view of a colored digital image of the original textured colored surface,
3
image data assigned to the color digital image,
4
a press plate with a structured press surface,
figure 5
a material plate,
6
a base plate, and
7
a paper and a carrier.

Die Fig. 1 zeigt die Draufsicht einer strukturierten, farbigen Ursprungsoberfläche 1, welche im Falle des vorliegenden Ausführungsbeispiels einem natürlichen Holzmuster zugeordnet ist. Die farbige Ursprungsoberfläche 1 kann auch eben sein. Die strukturierte, farbige Ursprungsoberfläche 1 umfasst insbesondere ein farbiges Muster 2 und eine Struktur 3, die aus tieferliegenden und erhabenen Bereichen in der Ursprungsoberfläche 1 ausgebildet ist.the 1 shows the top view of a structured, colored original surface 1, which is associated with a natural wood pattern in the case of the present embodiment. The colored original surface 1 can also be flat. The structured, colored original surface 1 comprises in particular a colored pattern 2 and a structure 3 which is formed from deeper and raised areas in the original surface 1 .

Die Fig. 2 zeigt ein farbiges Digitalbild 21 der strukturierten, farbigen Ursprungsoberfläche 1.the 2 shows a colored digital image 21 of the structured, colored original surface 1.

Dem farbigen Digitalbild 21 sind in der Fig. 3 gezeigte Bilddaten 30 zugeordnet.The color digital image 21 are in the 3 assigned image data 30 shown.

Aus den Bilddaten 30 wird ein erster Bilddatensatz 31 und wenigstens ein zweiter, im Falle des vorliegenden Ausführungsbeispiels mehrere zweite Bilddatensätze 32a, 32b erzeugt.A first image data set 31 and at least one second image data set 32a, 32b, in the case of the present exemplary embodiment a plurality of second image data sets, are generated from the image data 30.

Der erste Bilddatensatz 31 und die zweiten Bilddatensätze 32a, 32b sind jeweils unterschiedlichen Farbkanälen des farbigen Digitalbildes 21 zugeordnet.The first image data set 31 and the second image data sets 32a, 32b are each assigned to different color channels of the colored digital image 21.

Der erste Bilddatensatz 31 ist für die Herstellung eines Presswerkzeugs vorgesehen, das eine strukturierte Pressoberfläche aufweist. Das Presswerkzeug ist z.B. ein in der Fig. 4 gezeigtes Pressblech 41, das eine strukturierte Pressoberfläche 42 umfasst. Das Presswerkzeug kann auch eine Prägewalze mit einer strukturierten Pressoberfläche oder ein Endlosband mit einer strukturierten Pressoberfläche sein.The first image data set 31 is provided for the production of a pressing tool that has a structured pressing surface. The pressing tool is, for example, one in the 4 shown pressing plate 41, which includes a structured pressing surface 42. The pressing tool can also be an embossing roller with a structured pressing surface or an endless belt with a structured pressing surface.

Die strukturierte Pressoberfläche 42 ist im Falle des vorliegenden Ausführungsbeispiels dem ersten Bilddatensatz 31 zugeordnet bzw. wurde unter Verwendung des ersten Bilddatensatzes 31 und ohne Verwendung der zweiten Bilddatensätze 32a, 32a hergestellt. Der erste Bilddatensatz 31 kann vor der Herstellung des Pressblechs 41 bzw. dessen strukturierter Pressoberfläche 42 weiterverarbeitet werden, insbesondere derart reduziert werden, sodass z.B. ein weiterverarbeiteter erster Bilddatensatz 33 entsteht. Im Falle des vorliegenden Ausführungsbeispiels wird der weiterverarbeitete erste Bilddatensatz 33 für die Herstellung des Pressblechs 41 bzw. dessen Pressoberfläche 42 verwendetIn the case of the present exemplary embodiment, the structured pressing surface 42 is assigned to the first image data set 31 or was produced using the first image data set 31 and without using the second image data sets 32a, 32a. The first image data set 31 can be further processed before the production of the press plate 41 or its structured pressing surface 42, in particular can be reduced in such a way that, for example, a further processed first image data set 33 is produced. In the case of the present exemplary embodiment, the further processed first image data set 33 is used for the production of the press plate 41 or its press surface 42

Die strukturierte Pressoberfläche 42 kann einen einzigen Glanzgrad oder mehrere unterschiedliche Glanzgrade aufweisen. Die unterschiedlichen Glanzgrade können aufgrund des ersten Bilddatensatzes 31 bzw. des weiterverarbeitenden ersten Bilddatensatzes 33 erzeugt werden.The textured press surface 42 may have a single gloss level or multiple different gloss levels. The different degrees of gloss can be generated on the basis of the first image data set 31 or the further processed first image data set 33 .

Die strukturierte Pressoberfläche 42 ist zum Herstellen einer in der Fig. 5 gezeigten Werkstoffplatte 51 vorgesehen, die eine strukturierte, farbige Oberfläche 52 umfasst.The structured pressing surface 42 is for producing a in the figure 5 Material plate 51 shown is provided, which includes a structured, colored surface 52 .

Die Werkstoffplatte 51 ist z.B. aus einem Kunststoff gefertigt oder umfasst eine Holzwerkstoffplatte.The material plate 51 is made of a plastic, for example, or comprises a wood material plate.

Um die strukturierte, farbige Oberfläche 52 zu erhalten, wird z.B. zunächst die relevante Oberfläche einer in der Fig. 6 gezeigten Grundwerkstoffplatte 61 als Beispiel eines Grundträgers unter Verwendung der zweiten Bilddatensätze 32 ohne Verwendung des ersten Bilddatensatzes 31 bearbeitet, sodass die Grundwerkstoffplatte 61 eine farbige Oberfläche 62 erhält. Gegebenenfalls werden die beiden zweiten Bilddatensätze 32a, 32b vorab noch weiterverarbeitet, insbesondere manuell weiterverarbeitet, sodass weiterverarbeitete, zweite Bilddatensätze 34a, 34b entstehen, die für die Bearbeitung bzw. Bedruckung der Grundwerkstoffplatte 61 verwendet werden.In order to obtain the structured, colored surface 52, for example, first the relevant surface in the 6 Base material panel 61 shown is processed as an example of a base carrier using the second image data set 32 without using the first image data set 31 , so that the base material panel 61 is given a colored surface 62 . If necessary, the two second image datasets 32a, 32b are further processed beforehand, in particular manually further processed, so that further processed, second image datasets 34a, 34b are created, which are used for processing or printing the base material panel 61.

Um die farbige Oberfläche 62 zu erhalten, wird z.B. ein Digitalfarbdrucker verwendet oder werden entsprechend eingefärbte Farbdruckwalzen verwendet. Gegebenenfalls können aus den zweiten Bilddatensätze 32a, 32b bzw. den weiterverarbeiteten zweiten Bilddatensätzen 34a, 34b automatisiert Bilddatensätze erstellt werden, welche zum Ansteuern des Digitalfarbdruckers geeignet sind.In order to obtain the colored surface 62, a digital color printer is used, for example, or appropriately colored ink printing rollers are used. If necessary, image data sets that are suitable for controlling the digital color printer can be automatically created from the second image data sets 32a, 32b or the further processed second image data sets 34a, 34b.

Anschließend wird im Falle des vorliegenden Ausführungsbeispiels die farbige Oberfläche 62 der Grundwerkstoffplatte 61 mit einem Harz oder einer Kunststofffolie versehen und mit dem Pressblech 41 bzw. dessen strukturierter Pressoberfläche 42 verpresst, sodass die Werkstoffplatte 51 mit ihrer strukturierten, farbigen Oberfläche 52 entsteht.In the case of the present exemplary embodiment, the colored surface 62 of the base material panel 61 is then provided with a resin or a plastic film and pressed with the pressing plate 41 or its structured pressing surface 42, so that the material panel 51 with its structured, colored surface 52 is produced.

Die Fig. 7 zeigt als ein weiters Beispiels eines Grundträgers ein Papier 71 mit einer farbigen Oberfläche 72. Um die farbige Oberfläche 72 zu erhalten, wurde die relevante Oberfläche eines Papiers unter Verwendung der zweiten Bilddatensätze 32 ohne Verwendung des ersten Bilddatensatzes 31 bearbeitet. Gegebenenfalls werden die beiden zweiten Bilddatensätze 32a, 32b vorab noch weiterverarbeitet, insbesondere manuell weiterverarbeitet, sodass weiterverarbeitete, zweite Bilddatensätze 34a, 34b entstehen, die für die Bearbeitung bzw. Bedruckung des Papiers 71 verwendet werden.the 7 13 shows a paper 71 with a colored surface 72 as a further example of a base carrier. In order to obtain the colored surface 72, the relevant surface of a paper was processed using the second image data sets 32 without using the first image data set 31. If necessary, the two second image data sets 32a, 32b are further processed beforehand, in particular manually further processed, so that further processed, second image data sets 34a, 34b are created, which are used for processing or printing the paper 71.

Um die farbige Oberfläche 72 zu erhalten, wird z.B. ein Digitalfarbdrucker verwendet oder werden entsprechend eingefärbte Farbdruckwalzen verwendet. Gegebenenfalls können aus den zweiten Bilddatensätze 32a, 32b bzw. den weiterverarbeiteten zweiten Bilddatensätzen 34a, 34b automatisiert Bilddatensätze erstellt werden, welche zum Ansteuern des Digitalfarbdruckers geeignet sind.In order to obtain the colored surface 72, a digital color printer is used, for example, or appropriately colored ink printing rollers are used. If necessary, image data sets that are suitable for controlling the digital color printer can be automatically created from the second image data sets 32a, 32b or the further processed second image data sets 34a, 34b.

Um die Werkstoffplatte 51 zu erhalten, wird insbesondere das Papier 71 mit einem Harz getränkt und anschließend mit einem Träger 73 und unter Verwendung des Pressblechs 41 bzw. dessen strukturierter Pressoberfläche 42 verpresst, sodass die Werkstoffplatte 51 mit ihrer strukturierten, farbigen Oberfläche 52 entsteht.In order to obtain the material panel 51, the paper 71 is in particular impregnated with a resin and then pressed with a carrier 73 and using the pressing plate 41 or its structured pressing surface 42, so that the material panel 51 with its structured, colored surface 52 is produced.

Der Träger 73 ist z.B. aus einem Kunststoff gefertigt oder umfasst eine Holzwerkstoffplatte.The carrier 73 is made of a plastic, for example, or comprises a wood-based panel.

Die Werkstoffplatte 51 kann zusätzlich zur strukturierten, farbigen Oberfläche 52 eine weitere strukturierte, farbige Oberfläche aufweisen. Diese beiden strukturierten, farbigen Oberflächen sind gegenüberliegend angeordnet und deckungsgleich. Um die weitere strukturierte, farbige Oberfläche zu erhalten, können z.B. zwei dritte Bilddatensätze aus den beiden zweiten Bilddatensätzen (32a, 32) durch achsensymmetrisches Spiegeln der beiden zweiten Bilddatensätze (32a, 32) erzeugt werden. Danach kann eine weitere farbige Oberfläche auf dem Grundträger unter Verwendung der beiden dritten Bilddatensätze hergestellt werden, wobei die farbige Oberfläche und die weitere farbige Oberfläche deckungsgleich und gegenüberliegend angeordnet sind.In addition to the structured, colored surface 52, the material plate 51 can have another structured, colored surface. These two structured, colored surfaces are arranged opposite each other and are congruent. In order to obtain the further structured, colored surface, two third image data sets can be generated from the two second image data sets (32a, 32) by axisymmetric mirroring of the two second image data sets (32a, 32). A further colored surface can then be produced on the base carrier using the two third image data sets, the colored surface and the further colored surface being arranged congruently and opposite one another.

Die weitere farbigen Oberfläche des Grundträgers wird dann z.B. mittels einer strukturierten Pressoberfläche eines weiteren Presswerkzeugs verpresst, um eine Werkstoffplatte mit der weiteren strukturierten, farbigen Oberfläche zu erhalten.The additional colored surface of the base support is then pressed, e.g. using a structured pressing surface of an additional pressing tool, in order to obtain a material panel with the additional structured, colored surface.

Claims (7)

  1. A method for producing a material board (51), which comprises a structured, colored surface (52), comprising the following method steps:
    - providing image data (30) assigned to a colored digital image (21) of a colored original surface (1),
    - generating a first image data set (31) and at least one second image data set (32a, 32b) from the image data (30),
    - producing a colored surface (62, 72) on a base carrier (61, 71) using the at least one second image data set (32a, 32b) without using the first image data set (31), and
    - pressing the colored surface (62, 72) of the base carrier (61, 71) by means of a structured pressing surface (42) of a pressing tool (41) so as to obtain the material board (51) with the structured, colored surface (52), wherein the structured pressing surface (42) was produced using the first image data set (31) and is thus assigned to the first image data set (31), characterized in that the first image data set (31) and the at least one second image data set are each assigned to different color channels of the colored digital image (21).
  2. The method according to claim 1, in which the production of a colored surface (62, 72) on a base carrier (61, 71) is performed by printing, preferably using a digital color printer or by means of color printing rollers.
  3. The method according to claim 1 or 2, in which the colored original surface (1) is a structured, colored original surface.
  4. The method according to one of claims 1 or 3, in which the original surface (1) is assigned to a wood pattern or a natural stone, in particular to a structured wood pattern or a structured natural stone.
  5. The method according to one of claims 1 to 4, in which the first image data set (31) is further processed to adapt the degree of structuring of the pressing surface (42), in particular reduce it, prior to the use for producing the structured pressing surface (42).
  6. The method according to one of claims 1 to 5, in which the pressing surface (42) has different degrees of gloss which were produced using the first image data set (31).
  7. The method according to one of claims 1 to 6, comprising the following method steps:
    - generating at least one third image data set from the at least one second image data set by axisymmetric mirroring of the at least one second image data set,
    - producing a further colored surface on the base carrier using the at least one third image data set without using the first image data set, wherein the colored surface and the further colored surface are congruent and arranged opposite one another, and
    - pressing the further colored surface of the base carrier using a structured pressing surface of a further pressing tool so as to obtain a material board with a further structured, colored surface, which is congruent to and arranged opposite the structured, colored surface, wherein the structured pressing surface is assigned to the first image data set, is, however, axisymmetric with respect to the pressing surface of the pressing tool in such a way that the structured, colored surface and the further structured, colored surface are congruent.
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US9718302B2 (en) * 2015-09-22 2017-08-01 The Boeing Company Decorative laminate with non-visible light activated material and system and method for using the same
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CA3133411C (en) 2022-06-21
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CN113573916A (en) 2021-10-29
KR102390941B1 (en) 2022-04-26
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JP2022521815A (en) 2022-04-12
US11407250B2 (en) 2022-08-09
PL3938220T3 (en) 2022-10-31
JP7085698B2 (en) 2022-06-16
AU2020242607A1 (en) 2021-11-11
EP3938220A1 (en) 2022-01-19
AU2020242607B2 (en) 2022-05-12
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ES2923563T3 (en) 2022-09-28

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