EP4045304B1 - Press tool and method for producing a press tool - Google Patents

Press tool and method for producing a press tool Download PDF

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Publication number
EP4045304B1
EP4045304B1 EP20792586.8A EP20792586A EP4045304B1 EP 4045304 B1 EP4045304 B1 EP 4045304B1 EP 20792586 A EP20792586 A EP 20792586A EP 4045304 B1 EP4045304 B1 EP 4045304B1
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EP
European Patent Office
Prior art keywords
layer
wear layer
full
wear
indicator
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Application number
EP20792586.8A
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German (de)
French (fr)
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EP4045304A1 (en
Inventor
Thorsten Hagedorn
Berthold Thölen
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Hueck Rheinische GmbH
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Hueck Rheinische GmbH
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Publication of EP4045304A1 publication Critical patent/EP4045304A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/06—Platens or press rams
    • B30B15/062—Press plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/06—Platens or press rams
    • B30B15/065—Press rams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B3/00—Presses characterised by the use of rotary pressing members, e.g. rollers, rings, discs
    • B30B3/005—Roll constructions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
    • B44B5/00—Machines or apparatus for embossing decorations or marks, e.g. embossing coins
    • B44B5/02—Dies; Accessories
    • B44B5/026—Dies

Definitions

  • the invention relates to a pressing tool with a pressing surface and a method for producing the pressing tool.
  • Pressing tools for example in the form of pressing sheets, endless belts or embossing rollers, are used in the woodworking industry, for example, to produce furniture, laminates or panels, i.e. workpieces in general.
  • the workpieces are pressed with the pressing surface of the pressing tool, so that the workpieces receive surfaces corresponding to the pressing surface.
  • the WO 2009/062488 A2 discloses a pressed sheet with a structured pressed surface.
  • the textured press surface includes a structure that has a mountain-like surface with valleys and peaks and a full-surface chrome layer. Using the pressing surface, a workpiece designed as a material plate with a structured surface can be produced.
  • the WO 2008/120058 A1 discloses a pressing tool whose pressing surface is formed by a layer consisting of a metal matrix with mineral or ceramic particles embedded therein.
  • the press surface is subject to wear, so the layer forming the press surface wears away over time.
  • the document DE 10 2014 212448 A1 discloses pressing tool according to the preamble of claim 1 and a corresponding method.
  • the object of the invention is to provide a pressing tool with a structured pressing surface, in which wear of the pressing tool can be detected in a relatively simple manner.
  • the object of the invention is achieved by a pressing tool according to claim 1.
  • a further aspect of the invention is a method for producing the pressing tool according to the invention, with the features of claim 6.
  • the pressing tool according to the invention is, for example, an endless belt, an embossing roller or preferably a pressing plate and comprises the pressing surface, which has a structure of elevations and depressions.
  • the pressing surface is therefore a structured pressing surface with elevations and depressions. This gives the workpiece a structured surface corresponding to the structure of the structured pressing surface.
  • the workpiece is, for example, a material plate.
  • a material plate This includes, for example, a carrier, for example an MDF board or a chipboard, which is pressed with a resin or plastic-coated carrier (e.g. paper) using the pressing tool.
  • the material plate can also be a so-called luxury vinyl tile (LVT).
  • the pressing surface of the pressing tool according to the invention is at least partially formed by the wear layer.
  • the wear layer can be formed over the entire surface or partially.
  • the pressing tool includes the indicator layer, which is arranged below the wear layer.
  • the indicator layer is in particular below the Wear layer arranged so that it is arranged directly below the wear layer or that the wear layer rests on the indicator layer.
  • the pressing tool includes in particular a base structure on which the indicator layer is arranged.
  • the indicator layer is, for example, an indicator layer made of metal or plastic or is a paint indicator layer.
  • the wear layer is, for example, a wear layer made of metal or plastic, or is a paint indicator layer.
  • the plastic preferably comprises polyetheretherketone or consists of polyetheretherketone.
  • the basic structure is in particular made of metal such as steel, and the indicator layer and the wear layer are, for example, made of metal, i.e. electrically conductive, which makes it possible to apply the wear layer to the indicator layer using a galvanic or chemical process.
  • the structure of the basic structure essentially corresponds to the structure of the pressing surface.
  • the indicator layer is intended to indicate wear of the wear layer arranged on the indicator layer, i.e. in particular also wear of the pressing surface.
  • the indicator layer therefore has a different optical property than the wear layer. At least that's the wear layer partly worn so badly that it is completely removed, at least in some areas, the indicator layer is visible in these areas. Due to the different optical properties, this is then particularly visible to the human eye, so that a person can recognize relatively easily when the pressing tool is too worn.
  • the optical properties of the indicator layer are achieved by means of the particles embedded in it.
  • the optical properties are, for example, a color or a fluorescence.
  • the particles of the indicator layer are therefore, for example, color particles, so that the indicator layer has a corresponding color, and/or fluorescent particles, so that the indicator layer has fluorescent properties.
  • the particles of the indicator layer in particular have a size in the micrometer or nanometer range.
  • the indicator layer is preferably an indicator layer made of chromium-free metal, preferably an indicator layer made of nickel.
  • the metal wear layer is also preferably chromium-free, for example nickel.
  • mineral particles can be embedded in it.
  • the mineral particles in particular have a Mohs hardness of at least 8.
  • the mineral particles can have a size in the nanometer or micrometer range. This allows the mineral particles to be relatively homogeneous in the wear layer are embedded, which gives the wear layer a relatively homogeneous hardness over its entire surface.
  • the size of the individual mineral particles can be different or essentially the same.
  • the mineral particles preferably have a volume fraction of at least 50% based on the volume of the wear layer with mineral particles embedded therein. Due to the size, volume fraction and type of minerals of the mineral particles, the desired degree of wear of the wear layer can be adjusted.
  • the mineral particles are preferably diamond particles or industrial diamond particles.
  • the minerals silicon carbide, boron nitride, boron carbide, aluminum oxide and titanium oxide in particular can also be used as mineral particles.
  • the structured pressing surface is in contact with the workpiece and is therefore subject to wear. This wear is particularly pronounced in the areas of the elevations, at least in the area of certain elevations.
  • the indicator layer is a partial indicator layer, which is arranged only in areas below the wear layer that are assigned to the elevations or predetermined elevations.
  • the mask and the partial indicator layer are applied in particular depending on the image data assigned to the structure of the pressing surface.
  • the base structure can be treated before arranging the full-surface metal indicator layer, for example to modify the structure of the base structure.
  • This treatment can include mechanical treatment and/or galvanic and/or chemical treatment of the basic structure and/or the basic structure can be treated with a laser.
  • the treatment of the basic structure can also be a thermal treatment, for example annealing, in order to harden it, for example.
  • the structure of the pressing surface is particularly associated with a natural material, such as wood or stone. In order to preserve the structure of the pressing surface, it can be provided that a template, e.g. a piece of wood or a stone, is scanned to obtain image data.
  • This image data includes, in particular, information about the structure that the structured pressing surface should have.
  • the image data used to produce the partial indicator layer can be the scanned image data or image data generated from it.
  • the wear layer can be a full-surface wear layer made of metal.
  • a partial wear layer made of metal can be arranged on the full-surface wear layer made of metal. In this case, the partial wear layer made of metal and areas of the full-surface wear layer on which the partial wear layer made of metal is not arranged form the pressing surface.
  • the full-surface wear layer and the partial wear layer made of metal are preferably produced using a galvanic or chemical process.
  • the full-surface wear layer made of metal and the partial wear layer made of metal each have a level of gloss.
  • the gloss levels of the full-surface wear layer made of metal and the partial one differ Wear layer made of metal from one another, so that the surface of the workpiece produced with the pressing tool also has areas of different degrees of gloss.
  • the full-surface metal wear layer can be treated before applying the partial metal wear layer.
  • This treatment can include mechanical treatment and/or galvanic and/or chemical treatment of the full-surface wear layer and/or the full-surface wear layer can be treated with a laser.
  • Treating the full-surface wear layer can also be a thermal treatment, for example annealing the full-surface wear layer, for example to harden it. If the full-surface wear layer is a full-surface wear layer made of nickel, thermal treatment can cause it to have a hardness of approximately 1100 Vickers or more.
  • the partial wear layer made of metal can be treated additionally.
  • This treatment can include mechanical treatment and/or galvanic and/or chemical treatment of the partial wear layer made of metal and/or
  • the partial metal wear layer can be treated with a laser.
  • the treatment of the partial metal wear layer can also be a thermal treatment, for example annealing the partial metal wear layer, in order to increase its wear resistance.
  • additional mineral particles can be embedded in the partial metal layer.
  • the mineral particles and the other mineral particles can have the same size, the same volume fraction based on the volume of their metal layer and/or the same type of minerals.
  • the material of the partial metal layer and the full-surface metal layer can be the same or different.
  • the pressing surface can be changed, for example, through mechanical or chemical post-treatment or adapted to specific requirements.
  • the printing of the partial indicator layer made of plastic or the partial paint indicator layer is preferably carried out depending on the image data assigned to the structure of the pressing surface.
  • the base structure can be treated with the indicator layer before arranging or coating the base structure, so that preferably the paint indicator layer adheres the plastic indicator layer better to the base structure.
  • This treatment can be a mechanical treatment of the base structure, due to which, for example, the surface of the base structure is roughened, so that the paint indicator layer or the plastic indicator layer adheres better to the base structure.
  • Treating the base structure can include galvanic and/or chemical treatment of the base structure and/or treating the base structure with a laser. Due to the treatment of the basic structure, for example, the structure of the basic structure can be refined.
  • the different degrees of gloss of the plastic wear layers can be achieved, for example, by hardening the plastic wear layers, for example by UV irradiation, electron beam or laser hardening, or by exposure to different temperatures.
  • the Fig. 1 shows a perspective view of a pressing plate 1 with a pressing surface 2 as an example of a pressing tool and the Fig. 2 a section of a side view of the pressed sheet 1 in a sectional view.
  • the pressing surface 2 comprises a structure made up of elevations 4 and depressions 3.
  • the structure of the pressing surface 2 is in particular assigned to a natural material, in the case of the present exemplary embodiment, wood.
  • a workpiece for example a material board, for example a laminate, can be produced by pressing. After pressing, the workpiece has a structured surface corresponding to the structure of the pressing surface 2.
  • the press plate 1 comprises a basic structure 10, a wear layer 11 which at least partially forms the press surface 2, and an indicator layer 12.
  • the basic structure 10 is made of metal.
  • the indicator layer 12 is arranged on the base structure 10 or below the wear layer 11 and, in the case of the present exemplary embodiment, is a partial indicator layer 12.
  • Particles 18 which have an optical property are embedded in the indicator layer 12, so that the indicator layer 12 also has this optical property.
  • the particles 18 are, for example, color particles, so that the indicator layer 12 has the color of these color particles.
  • the particles 18 can be fluorescent particles, so that the indicator layer 12 fluoresces.
  • the indicator layer 12 can have only the color particles, only the fluorescent particles or both types of particles 18.
  • the wear layer 11 is arranged on the indicator layer 12, that is, the indicator layer 12 is between the base structure 10 and the wear layer 11 arranged.
  • the optical property of the wear layer 11 differs from the optical property of the indicator layer 12.
  • the wear layer 11 is a full-surface wear layer 11 and forms the pressing surface 2.
  • mineral particles in particular industrial diamond particles 13, are embedded in the wear layer 11.
  • the wear layer 11 is, for example, made of metal, in particular nickel, and the indicator layer 12 is also made of metal, in particular nickel.
  • the wear layer 11 made of metal was produced, for example, by applying it to the indicator layer 12 made of metal with the addition of the industrial diamond particles 13 using a galvanic or chemical process.
  • the wear layer 11 and/or the indicator layer 12 can also be made of plastic.
  • the plastic layer preferably comprises polyetheretherketone.
  • the layers of plastic can be applied, for example, by printing.
  • the wear layer 11 can be a wear varnish layer, which is applied in particular by printing.
  • the indicator layer 12 can be an indicator lacquer layer, which is applied in particular by printing.
  • the pressed sheet 1 comprises a base support, in particular a base support plate 14, for example made of metal, on which the base structure 10 is arranged.
  • the base structure 10 comprises a plurality of base metal layers 15 lying one above the other.
  • the base metal layers 15 are preferably made of nickel.
  • mineral particles in particular industrial diamond particles 16, are also embedded in the base metal layers 15.
  • the industrial diamond particles 16 of the base metal layers 15 can be designed similarly to the industrial diamond particles 13 of the metal layer 11.
  • the basic structure 10 can be produced, for example, by one in the Fig. 3 mask 17 shown is applied at least once to a base metal layer 15 depending on the structure of the structured pressing surface 2 associated image data in order to cover areas, and then a further base metal layer 15 is applied to the areas not covered by the mask 17 with the addition of the diamond particles 15. This is repeated until the basic structure 10 is created.
  • the basic structure 10 is produced in particular depending on the structure of the pressing surface 2, ie depending on the image data assigned to the elevations 4 and depressions 5, by applying the masks 17 and the base metal layers 15 one after the other using the galvanic or chemical process depending on this image data.
  • the indicator layer 12 is then applied to the base structure 10 with the addition of the particles 18.
  • the indicator layer 12 is a partial indicator layer 12, which is arranged only in areas 20 on the base structure 10 that are assigned to the elevations 4 or predetermined elevations 4 of the pressing surface 2.
  • the indicator layer 12 is an indicator layer 12 made of metal, then it can be produced by using one in the Fig. 4 mask 40 shown is applied to the basic structure 10, for example by printing, depending on the image data assigned to the structure of the pressing surface 2, so that the areas 20 of the basic structure 10, which are assigned to the elevations 4 or predetermined elevations 4 of the pressing surface 2, from the mask 40 remain free.
  • the indicator layer 12 is then added with the addition of the optical properties Particles 18 are applied to the areas 20 of the basic structure 10, which are free of the mask 40, by means of a galvanic or chemical process.
  • the wear layer 11 made of metal is then applied to the indicator layer 12.
  • the indicator layer 12 is an indicator layer 12 made of plastic, it can be applied to the areas 20 of the basic structure 10 using a printer with the addition of the particles 18.
  • the wear layer 11 made of plastic, which at least partially forms the pressing surface 2 is then applied using a printer, in particular with the addition of the industrial diamond particles 18.
  • the indicator layer 12 is an indicator lacquer layer, it can be applied to the areas 20 of the basic structure 10 using a printer with the addition of the particles 18.
  • the indicator layer 12 is preferably applied depending on the image data assigned to the structure of the pressing surface 2.
  • the Fig. 5 shows a section of an embodiment of a pressing surface 52 of the pressing sheet 1 according to the invention in a sectional view.
  • This pressing surface 52 differs from that in the Fig. 2 shown pressing surface 2 in that the pressing plate 1 or the pressing surface 52 comprises a partial wear layer 53, in which further mineral particles, in particular further industrial diamond particles 54, are embedded.
  • the partial wear layer 53 is arranged on the wear layer 11, so that the partial wear layer 53 and the areas of the wear layer 11 not covered by the partial wear layer 53 form the pressing surface 52.
  • the wear layer 11 can be pretreated before applying the partial wear layer 53, for example chemically, mechanically, galvanically or by means of a laser.
  • the wear layer 11 and the partial wear layer 53 in particular each have a different level of gloss.
  • the wear layer 11 and the partial wear layer 53 are made of metal, then the different degrees of gloss can be generated, for example, by using metals of different gloss for the wear layer 11 and the further wear layer 53.
  • the same metals can also be used, which have different levels of gloss due to different application methods.
  • the partial wear layer 53 made of metal with further industrial diamond particles 54 embedded therein is produced, for example, by applying a mask, for example by printing, to the wear layer 11 made of metal in which the industrial diamond articles 13 are embedded, in order to cover predetermined areas of the wear layer 11.
  • a further metal layer is then applied to the areas of the wear layer 11 that are not provided with the mask, with the addition of the further industrial diamond particles 54, using a galvanic or chemical process in order to obtain the partial wear layer 53 with further industrial diamond particles 54 embedded therein.
  • the partial wear layer 53 can have further industrial diamond particles 54 embedded therein, for example.
  • B produced by applying a further plastic layer on the wear layer 11 to the predetermined areas 20 of the full-surface wear layer 11 made of plastic using a printer, in particular depending on the image data, in order to create the partial wear layer 53 made of plastic arranged on the full-surface wear layer 11 made of plastic receive.
  • the different degrees of gloss of the plastic wear layers can be achieved, for example, by hardening the plastic wear layers, for example by UV irradiation, electron beam or laser hardening, or by exposing them to different temperatures.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)

Description

Die Erfindung betrifft ein Presswerkzeug mit einer Pressoberfläche und ein Verfahren zum Herstellen des Presswerkzeugs.The invention relates to a pressing tool with a pressing surface and a method for producing the pressing tool.

Presswerkzeuge z.B. in Form von Pressblechen, Endlosbändern oder Prägewalzen werden z.B. in der holzverarbeitenden Industrie eingesetzt, um z.B. Möbel, Laminate oder Paneele, also allgemein Werkstücke herzustellen. Die Werkstücke werden mit der Pressoberfläche des Presswerkzeugs verpresst, sodass die Werkstücke Oberflächen entsprechend der Pressoberfläche erhalten.Pressing tools, for example in the form of pressing sheets, endless belts or embossing rollers, are used in the woodworking industry, for example, to produce furniture, laminates or panels, i.e. workpieces in general. The workpieces are pressed with the pressing surface of the pressing tool, so that the workpieces receive surfaces corresponding to the pressing surface.

Die WO 2009/062488 A2 offenbart ein Pressblech mit einer strukturierten Pressoberfläche. Die strukturierte Pressoberfläche umfasst eine Struktur, die eine gebirgsähnliche Oberfläche mit Tälern und Höhen aufweist, und eine vollflächig ausgeführte Chromschicht. Mittels der Pressoberfläche kann ein als Werkstoffplatte ausgebildetes Werkstück mit einer strukturierten Oberfläche hergestellt werden.The WO 2009/062488 A2 discloses a pressed sheet with a structured pressed surface. The textured press surface includes a structure that has a mountain-like surface with valleys and peaks and a full-surface chrome layer. Using the pressing surface, a workpiece designed as a material plate with a structured surface can be produced.

Die WO 2008/120058 A1 offenbart ein Presswerkzeug, dessen Pressoberfläche durch eine Schicht gebildet ist, die aus einer Metallmatrix mit darin eingebetteten Mineraloder Keramikpartikeln besteht.The WO 2008/120058 A1 discloses a pressing tool whose pressing surface is formed by a layer consisting of a metal matrix with mineral or ceramic particles embedded therein.

Die Pressoberfläche unterliegt einem Verschleiß, sodass sich die die Pressoberfläche bildende Schicht mit der Zeit abnutzt. Das Dokument DE 10 2014 212448 A1 offenbart Presswerkzeug nach dem Oberbegriff des Anspruchs 1 und ein entsprechendes Verfahren.The press surface is subject to wear, so the layer forming the press surface wears away over time. The document DE 10 2014 212448 A1 discloses pressing tool according to the preamble of claim 1 and a corresponding method.

Die Aufgabe der Erfindung ist es, ein Presswerkzeug mit einer strukturierten Pressoberfläche anzugeben, bei der ein Verschleiß des Presswerkzeugs in relativ einfacher Weise erkannt werden kann.The object of the invention is to provide a pressing tool with a structured pressing surface, in which wear of the pressing tool can be detected in a relatively simple manner.

Die Aufgabe der Erfindung wird gelöst durch ein Presswerkzeug nach Anspruch 1.The object of the invention is achieved by a pressing tool according to claim 1.

Ein weiterer Aspekt der Erfindung ist ein Verfahren zum Herstellen des erfindungsgemäßen Presswerkzeugs, mit den Merkmalen des Anspruchs 6.A further aspect of the invention is a method for producing the pressing tool according to the invention, with the features of claim 6.

Das erfindungsgemäße Presswerkzeug ist z.B. ein Endlosband, eine Prägewalze oder vorzugsweise ein Pressblech und umfasst die Pressoberfläche, die eine Struktur aus Erhebungen und Vertiefungen aufweist. Die Pressoberfläche ist somit eine strukturierte Pressoberfläche mit den Erhebungen und den Vertiefungen. Dadurch erhält das Werkstück eine strukturierte Oberfläche entsprechend der Struktur der strukturierten Pressoberfläche.The pressing tool according to the invention is, for example, an endless belt, an embossing roller or preferably a pressing plate and comprises the pressing surface, which has a structure of elevations and depressions. The pressing surface is therefore a structured pressing surface with elevations and depressions. This gives the workpiece a structured surface corresponding to the structure of the structured pressing surface.

Das Werkstück ist z.B. eine Werkstoffplatte. Diese umfasst z.B. einen Träger, z.B. eine MDF-Platte oder eine Spanplatte, die mit einem Harz oder Kunststoff beschichteten Träger (z.B. Papier) mittels des Presswerkzeugs verpresst wird. Die Werkstoffplatte kann auch eine sogenannte Luxuriöse Vinylfliese (LVT) sein.The workpiece is, for example, a material plate. This includes, for example, a carrier, for example an MDF board or a chipboard, which is pressed with a resin or plastic-coated carrier (e.g. paper) using the pressing tool. The material plate can also be a so-called luxury vinyl tile (LVT).

Die Pressoberfläche des erfindungsgemäßen Presswerkzeugs wird zumindest teilweise durch die Verschleißschicht gebildet. Die Verschleißschicht kann vollflächig oder partiell ausgebildet sein.The pressing surface of the pressing tool according to the invention is at least partially formed by the wear layer. The wear layer can be formed over the entire surface or partially.

Das Presswerkzeug umfasst die Indikatorschicht, die unterhalb der Verschleißschicht angeordnet ist. Die Indikatorschicht ist insbesondere derart unterhalb der Verschleißschicht angeordnet, dass sie direkt unterhalb der Verschleißschicht angeordnet ist bzw. dass die Verschleißschicht an der Indikatorschicht anliegt.The pressing tool includes the indicator layer, which is arranged below the wear layer. The indicator layer is in particular below the Wear layer arranged so that it is arranged directly below the wear layer or that the wear layer rests on the indicator layer.

Das Presswerkzeug umfasst insbesondere eine Grundstruktur, auf der die Indikatorschicht angeordnet ist.The pressing tool includes in particular a base structure on which the indicator layer is arranged.

Die Indikatorschicht ist z.B. eine Indikatorschicht aus Metall oder aus Kunststoff oder ist eine Lackindikatorschicht.The indicator layer is, for example, an indicator layer made of metal or plastic or is a paint indicator layer.

Die Verschleißschicht ist z.B. eine Verschleißschicht aus Metall oder aus Kunststoff, oder ist eine Lackindikatorschicht.The wear layer is, for example, a wear layer made of metal or plastic, or is a paint indicator layer.

Der Kunststoff umfasst vorzugsweise Polyetheretherketon oder besteht aus Polyetheretherketon.The plastic preferably comprises polyetheretherketone or consists of polyetheretherketone.

Die Grundstruktur ist insbesondere aus Metall wie z.B. Stahl, und die Indikatorschicht und die Verschleißschicht sind z.B. aus Metall, also elektrisch leitend, wodurch es möglich ist, die Verschleißschicht mittels eines galvanischen oder chemischen Verfahrens auf die Indikatorschicht aufzutragen. Die Struktur der Grundstruktur entspricht im Wesentlichen der Struktur der Pressoberfläche.The basic structure is in particular made of metal such as steel, and the indicator layer and the wear layer are, for example, made of metal, i.e. electrically conductive, which makes it possible to apply the wear layer to the indicator layer using a galvanic or chemical process. The structure of the basic structure essentially corresponds to the structure of the pressing surface.

Im Falle einer Indikatorschicht aus Kunststoff oder der Lackindikatorschicht wird diese vorzugsweise mittels eines Druckers auf die Grundstruktur aufgetragen. Eine solche Herstellung ist relativ umweltverträglich.In the case of an indicator layer made of plastic or the paint indicator layer, this is preferably applied to the base structure using a printer. Such production is relatively environmentally friendly.

Im Falle einer Verschleißschicht aus Kunststoff oder der Lackverschleißschicht wird diese vorzugsweise mittels eines Druckers auf die Indikatorschicht aufgetragen. Eine solche Herstellung ist relativ umweltverträglich.In the case of a wear layer made of plastic or the paint wear layer, this is preferably applied to the indicator layer using a printer. Such production is relatively environmentally friendly.

Die Indikatorschicht ist vorgesehen, eine Abnutzung der auf der Indikatorschicht angeordneten Verschleißschicht, also insbesondere auch eine Abnutzung der Pressoberfläche anzuzeigen. Deshalb weist die Indikatorschicht eine andere optische Eigenschaft auf als die Verschleißschicht. Ist die Verschleißschicht zumindest teilweise derart stark abgenutzt, dass sie zumindest bereichsweise komplett entfernt ist, so ist in diesen Bereichen die Indikatorschicht sichtbar. Aufgrund der unterschiedlichen optischen Eigenschaften wird diese dann insbesondere für das menschliche Auge sichtbar, sodass eine Person in relativ einfacher Wiese erkennen kann, wenn das Presswerkzeug zu stark abgenutzt ist.The indicator layer is intended to indicate wear of the wear layer arranged on the indicator layer, i.e. in particular also wear of the pressing surface. The indicator layer therefore has a different optical property than the wear layer. At least that's the wear layer partly worn so badly that it is completely removed, at least in some areas, the indicator layer is visible in these areas. Due to the different optical properties, this is then particularly visible to the human eye, so that a person can recognize relatively easily when the pressing tool is too worn.

Die optischen Eigenschaften der Indikatorschicht werden mittels der darin eingebetteten Partikel erreicht. Die optischen Eigenschaften sind z.B. eine Farbe oder eine Fluoreszenz. Die Partikel der Indikatorschicht sind daher z.B. Farbpartikel, sodass die Indikatorschicht eine entsprechende Farbe aufweist, und/oder fluoreszierende Partikel, sodass die Indikatorschicht fluoreszierende Eigenschaften aufweist.The optical properties of the indicator layer are achieved by means of the particles embedded in it. The optical properties are, for example, a color or a fluorescence. The particles of the indicator layer are therefore, for example, color particles, so that the indicator layer has a corresponding color, and/or fluorescent particles, so that the indicator layer has fluorescent properties.

Die Partikel der Indikatorschicht weisen insbesondere eine Größe im Mikro- oder Nanometerbereich auf.The particles of the indicator layer in particular have a size in the micrometer or nanometer range.

Um die Umweltverträglichkeit zu erhöhen, ist die Indikatorschicht vorzugsweise eine Indikatorschicht aus chromfreiem Metall, vorzugsweise eine Indikatorschicht aus Nickel.In order to increase environmental compatibility, the indicator layer is preferably an indicator layer made of chromium-free metal, preferably an indicator layer made of nickel.

Auch die Verschleißschicht aus Metall ist vorzugsweise chromfrei, beispielsweise aus Nickel.The metal wear layer is also preferably chromium-free, for example nickel.

Um die Verschleißfestigkeit der auf der Indikatorschicht angeordneten Verschleißschicht zu erhöhen, können in dieser Mineralpartikel eingebettet sein.In order to increase the wear resistance of the wear layer arranged on the indicator layer, mineral particles can be embedded in it.

Minerale sind insbesondere in der Erdkruste vorkommende, meist anorganische, homogene, meist kristallisierte Substanzen. Die Mehrzahl der heute bekannten und von der International Mineralogical Association als eigenständig anerkannten Minerale sind anorganisch.Minerals are mostly inorganic, homogeneous, mostly crystallized substances that occur particularly in the earth's crust. The majority of minerals known today and recognized as independent by the International Mineralogical Association are inorganic.

Die Mineralpartikel weisen insbesondere eine Mohshärte von wenigstens 8 auf. Die Mineralpartikel können eine Größe im Nanometer oder Mikrometerbereich aufweisen. Dadurch können die Mineralpartikel relativ homogen in der Verschleißschicht eingebettet werden, wodurch die Verschleißschicht eine relativ homogene Härte über ihre gesamte Oberfläche erhält. Die Größe der einzelnen Mineralpartikel kann unterschiedlich oder im Wesentlichen gleich sein.The mineral particles in particular have a Mohs hardness of at least 8. The mineral particles can have a size in the nanometer or micrometer range. This allows the mineral particles to be relatively homogeneous in the wear layer are embedded, which gives the wear layer a relatively homogeneous hardness over its entire surface. The size of the individual mineral particles can be different or essentially the same.

Die Mineralpartikel weisen vorzugsweise einen Volumenanteil von wenigstens 50% bezogen auf das Volumen der Verschleißschicht mit darin eingebetteten Mineralpartikeln auf. Aufgrund der Größe, des Volumenanteils und derart der Minerale der Mineralpartikel kann der gewünschte Verschleißgrad der Verschleißschicht eingestellt werden.The mineral particles preferably have a volume fraction of at least 50% based on the volume of the wear layer with mineral particles embedded therein. Due to the size, volume fraction and type of minerals of the mineral particles, the desired degree of wear of the wear layer can be adjusted.

Die Mineralpartikel sind vorzugsweise Diamantpartikel bzw. Industriediamantpartikel. Jedoch sind insbesondere die Minerale Siliziumcarbid, Bornnitrid, Borcarbid, Aluminiumoxid und Titanoxid als Mineralpartikel auch verwendbar.The mineral particles are preferably diamond particles or industrial diamond particles. However, the minerals silicon carbide, boron nitride, boron carbide, aluminum oxide and titanium oxide in particular can also be used as mineral particles.

Während der Herstellung des Werkstücks steht die strukturierte Pressoberfläche mit dem Werkstück in Kontakt und ist daher einem Verschleiß ausgesetzt. Dieser Verschleiß ist in den Bereichen der Erhöhungen, zumindest in Bereich bestimmter Erhöhungen besonders ausgeprägt. Gemäß einer bevorzugten Ausführungsform des Presswerkzeugs ist die Indikatorschicht eine partielle Indikatorschicht, welche nur in Bereichen unterhalb der Verschleißschicht angeordnet ist, die den Erhebungen oder vorbestimmten Erhebungen zugeordnet sind.During the production of the workpiece, the structured pressing surface is in contact with the workpiece and is therefore subject to wear. This wear is particularly pronounced in the areas of the elevations, at least in the area of certain elevations. According to a preferred embodiment of the pressing tool, the indicator layer is a partial indicator layer, which is arranged only in areas below the wear layer that are assigned to the elevations or predetermined elevations.

Die Herstellung dieser Variante des Presswerkzeugs im Falle der Indikatorschicht und der Verschleißschicht aus Metall umfasst insbesondere die folgenden Verfahrensschritte:

  • Auftragen einer Maske auf die Grundstruktur, sodass Bereiche der Grundstruktur, die den Erhebungen oder vorbestimmten Erhebungen der Pressoberfläche zugeordnet sind, von der Maske frei bleiben,
  • Auftragen der Indikatorschicht aus Metall unter Zugabe der die optischen Eigenschaften aufweisenden Partikel auf die Bereiche der Grundstruktur, die frei von der Maske sind, mittels eines galvanischen oder chemischen Verfahrens, und
  • Auftragen der die Pressoberfläche zumindest teilweise bildenden Verschleißschicht aus Metall mittels eines galvanischen oder chemischen Verfahrens.
The production of this variant of the pressing tool in the case of the indicator layer and the wear layer made of metal includes in particular the following process steps:
  • Applying a mask to the base structure so that areas of the base structure that are assigned to the elevations or predetermined elevations of the pressing surface remain free of the mask,
  • Applying the indicator layer made of metal with the addition of the particles having the optical properties to the areas of the base structure that are free of the mask by means of a galvanic or chemical process, and
  • Application of the wear layer made of metal, which at least partially forms the press surface, using a galvanic or chemical process.

Das Auftragen der Maske und der partiellen Indikatorschicht erfolgt insbesondere in Abhängigkeit von der Struktur der Pressoberfläche zugeordneten Bilddaten.The mask and the partial indicator layer are applied in particular depending on the image data assigned to the structure of the pressing surface.

Die Grundstruktur kann vor dem Anordnen der vollflächigen Indikatorschicht aus Metall behandelt werden, um z.B. die Struktur der Grundstruktur zu modifizieren. Dieses Behandeln kann ein mechanisches Behandeln und/oder ein galvanisches und/oder ein chemisches Behandeln der Grundstruktur umfassen und/oder das Behandeln der Grundstruktur kann mit einem Laser erfolgen. Das Behandeln der Grundstruktur kann auch eine thermische Behandlung, z.B. ein Tempern sein, um diese z.B. zu härten. Die Struktur der Pressoberfläche ist insbesondere einem natürlichen Werkstoff, wie z.B. Holz oder Stein zugeordnet. Um die Struktur der Pressoberfläche zu erhalten, kann es vorgesehen sein, dass eine Vorlage, z.B. ein Stück Holz oder ein Stein gescannt wird, um Bilddaten zu erhalten. Diese Bilddaten umfassen insbesondere eine Information über die Struktur, die die strukturierte Pressoberfläche aufweisen soll. Die für die Herstellung der partiellen Indikatorschicht verwendeten Bilddaten können die gescannten Bilddaten oder aus diesen erzeugte Bilddaten sein.The base structure can be treated before arranging the full-surface metal indicator layer, for example to modify the structure of the base structure. This treatment can include mechanical treatment and/or galvanic and/or chemical treatment of the basic structure and/or the basic structure can be treated with a laser. The treatment of the basic structure can also be a thermal treatment, for example annealing, in order to harden it, for example. The structure of the pressing surface is particularly associated with a natural material, such as wood or stone. In order to preserve the structure of the pressing surface, it can be provided that a template, e.g. a piece of wood or a stone, is scanned to obtain image data. This image data includes, in particular, information about the structure that the structured pressing surface should have. The image data used to produce the partial indicator layer can be the scanned image data or image data generated from it.

Die Verschleißschicht kann eine vollflächige Verschleißschicht aus Metall sein. Auf der vollflächigen Verschleißschicht aus Metall kann eine partielle Verschleißschicht aus Metall angeordnet sein. Die partielle Verschleißschicht aus Metall und Bereiche der vollflächigen Verschleißschicht, auf denen die partiellen Verschleißschicht aus Metall nicht angeordnet ist, bilden in diesem Fall die Pressoberfläche.The wear layer can be a full-surface wear layer made of metal. A partial wear layer made of metal can be arranged on the full-surface wear layer made of metal. In this case, the partial wear layer made of metal and areas of the full-surface wear layer on which the partial wear layer made of metal is not arranged form the pressing surface.

Die vollflächige Verschleißschicht und die partielle Verschleißschicht aus Metall werden vorzugsweise mit einem galvanischen oder chemischen Verfahren erzeugt. Die vollflächige Verschleißschicht aus Metall und die partielle Verschleißschicht aus Metall weisen jeweils einen Glanzgrad auf. Erfindungsgemäß unterscheiden sich die Glanzgrade der vollflächigen Verschleißschicht aus Metall und der partiellen Verschleißschicht aus Metall voneinander, sodass die Oberfläche des mit dem Presswerkzeug hergestellten Werkstücks ebenfalls Bereiche unterschiedlicher Glanzgrade aufweist.The full-surface wear layer and the partial wear layer made of metal are preferably produced using a galvanic or chemical process. The full-surface wear layer made of metal and the partial wear layer made of metal each have a level of gloss. According to the invention, the gloss levels of the full-surface wear layer made of metal and the partial one differ Wear layer made of metal from one another, so that the surface of the workpiece produced with the pressing tool also has areas of different degrees of gloss.

Das Verfahren zum Herstellen des erfindungsgemäßen Presswerkzeugs weist folgende Verfahrensschritte auf:

  • vollflächiges Auftragen einer Metallschicht auf die Indikatorschicht, um die vollflächige Verschleißschicht aus Metall zu erhalten,
  • Auftragen einer Maske auf die vollflächige Verschleißschicht aus Metall insbesondere in Abhängigkeit von der Struktur der Pressoberfläche zugeordneten Bilddaten, sodass vorbestimmte Bereich der vollflächigen Verschleißschicht aus Metall, die die den Erhebungen oder vorbestimmten Erhebungen der Grundstruktur zugeordnet sind, von der Maske frei bleiben, und
  • Auftragen einer weiteren Metallschicht auf die vorbestimmten Bereiche der vollflächigen Verschleißschicht mittels eines galvanischen oder chemischen Verfahrens insbesondere in Abhängigkeit der Bilddaten, um die auf der vollflächigen Verschleißschicht angeordnete partielle Verschleißschicht aus Metall zu erhalten.
The method for producing the pressing tool according to the invention has the following process steps:
  • full-surface application of a metal layer to the indicator layer in order to obtain the full-surface wear layer made of metal,
  • Applying a mask to the full-surface wear layer made of metal, in particular depending on the image data assigned to the structure of the pressing surface, so that predetermined areas of the full-surface wear layer made of metal, which are assigned to the elevations or predetermined elevations of the basic structure, remain free of the mask, and
  • Applying a further metal layer to the predetermined areas of the full-surface wear layer by means of a galvanic or chemical process, in particular depending on the image data, in order to obtain the partial wear layer made of metal arranged on the full-surface wear layer.

Die vollflächige Verschleißschicht aus Metall kann vor dem Auftragen der partiellen Verschleißschicht aus Metall behandelt werden. Dieses Behandeln kann ein mechanisches Behandeln und/oder ein galvanisches und/oder ein chemisches Behandeln der vollflächigen Verschleißschicht umfassen und/oder das Behandeln der vollflächigen Verschleißschicht kann mit einem Laser erfolgen. Das Behandeln der vollflächigen Verschleißschicht kann auch eine thermische Behandlung, z.B. ein Tempern der vollflächigen Verschleißschicht sein, um diese z.B. zu härten. Handelt es sich bei der vollflächigen Verschleißschicht um eine vollflächigen Verschleißschicht aus Nickel, so kann durch das thermische Behandeln diese eine Härte von ca. 1100 Vickers oder mehr aufweisen.The full-surface metal wear layer can be treated before applying the partial metal wear layer. This treatment can include mechanical treatment and/or galvanic and/or chemical treatment of the full-surface wear layer and/or the full-surface wear layer can be treated with a laser. Treating the full-surface wear layer can also be a thermal treatment, for example annealing the full-surface wear layer, for example to harden it. If the full-surface wear layer is a full-surface wear layer made of nickel, thermal treatment can cause it to have a hardness of approximately 1100 Vickers or more.

Die partielle Verschleißschicht aus Metall kann zusätzlich behandelt werden. Dieses Behandeln kann ein mechanisches Behandeln und/oder ein galvanisches und/oder ein chemisches Behandeln der partiellen Verschleißschicht aus Metall umfassen und/oder das Behandeln der partiellen Verschleißschicht aus Metall kann mit einem Laser erfolgen. Das Behandeln der partiellen Verschleißschicht aus Metall kann auch eine thermische Behandlung, z.B. ein Tempern der partiellen Verschleißschicht aus Metall sein, um deren Verschleißfestigkeit zu erhöhen.The partial wear layer made of metal can be treated additionally. This treatment can include mechanical treatment and/or galvanic and/or chemical treatment of the partial wear layer made of metal and/or The partial metal wear layer can be treated with a laser. The treatment of the partial metal wear layer can also be a thermal treatment, for example annealing the partial metal wear layer, in order to increase its wear resistance.

Um die Pressoberfläche zusätzlich verschleißfester zu machen, können in der partiellen Metallschicht weitere Mineralpartikel eingebettet sind.In order to make the pressing surface additionally more wear-resistant, additional mineral particles can be embedded in the partial metal layer.

Die Mineralpartikel und die weiteren Mineralpartikel können dieselbe Größe, denselben Volumenanteil bezogen auf das Volumen ihrer Metallschicht und/oder dieselbe Art von Mineralien aufweisen.The mineral particles and the other mineral particles can have the same size, the same volume fraction based on the volume of their metal layer and/or the same type of minerals.

Das Material der partiellen Metallschicht und der vollflächigen Metallschicht kann dasselbe sein oder sich unterscheiden.The material of the partial metal layer and the full-surface metal layer can be the same or different.

Die Pressoberfläche kann z.B. durch eine mechanische oder chemische Nachbehandlung verändert bzw. an bestimmte Wünsche angepasst werden.The pressing surface can be changed, for example, through mechanical or chemical post-treatment or adapted to specific requirements.

Handelt es sich bei der Verschleißschicht um die Verschleißschicht aus Kunststoff oder ist diese eine Lackverschleißschicht, dann kann insbesondere die Indikatorschicht eine partielle Indikatorschicht aus Kunststoff oder eine partielle Lackindikatorschicht sein, welche nur in Bereichen auf der Grundstruktur angeordnet ist, die den Erhebungen oder vorbestimmten Erhebungen der Pressoberfläche zugeordnet sind. Die Herstellung dieser Variante umfasst insbesondre ein

  • Auftragen der Indikatorschicht aus Kunststoff oder der Lackindikatorschicht unter Zugabe der die optischen Eigenschaften aufweisenden Partikel auf die Bereiche der Grundstruktur mittels eines Druckers, und
  • Auftragen der die Pressoberfläche zumindest teilweise bildenden Verschleißschicht aus Kunststoff oder der Lackverschleißschicht mittels eines Druckers.
If the wear layer is the wear layer made of plastic or is a paint wear layer, then in particular the indicator layer can be a partial indicator layer made of plastic or a partial paint indicator layer, which is only arranged in areas on the base structure that correspond to the elevations or predetermined elevations of the Press surface are assigned. The production of this variant includes in particular:
  • Applying the indicator layer made of plastic or the paint indicator layer with the addition of the particles having the optical properties to the areas of the basic structure using a printer, and
  • Applying the wear layer made of plastic or the paint wear layer that at least partially forms the press surface using a printer.

Das Drucken der partiellen Indikatorschicht aus Kunststoff oder der partiellen Lackindikatorschicht erfolgt vorzugsweise in Abhängigkeit von der Struktur der Pressoberfläche zugeordneten Bilddaten.The printing of the partial indicator layer made of plastic or the partial paint indicator layer is preferably carried out depending on the image data assigned to the structure of the pressing surface.

Die die Pressoberfläche zumindest teilweise bildende Verschleißschicht kann eine vollflächige Verschleißschicht aus Kunststoff sein, auf der eine partielle Verschleißschicht aus Kunststoff angeordnet ist. Die vollflächige Verschleißschicht aus Kunststoff weist vorzugsweise einen Glanzgrad und die partielle Verschleißschicht aus Kunststoff weist einen vom Glanzgrad der vollflächigen Verschleißschicht aus Kunststoff verschiedenen Glanzgrad auf. Die Herstellung dieser Variante umfasst insbesondre ein

  • vollflächiges Auftragen einer Kunststoffschicht auf die Indikatorschicht, um die vollflächige Verschleißschicht aus Kunststoff zu erhalten, und
  • Auftragen einer weiteren Kunststoffschicht auf die vorbestimmten Bereiche der vollflächigen Verschleißschicht aus Kunststoff mittels eines Druckers insbesondere in Abhängigkeit der Bilddaten, um die auf der vollflächigen Verschleißschicht aus Kunststoff angeordnete partielle Verschleißschicht aus Kunststoff zu erhalten.
The wear layer that at least partially forms the pressing surface can be a full-surface wear layer made of plastic, on which a partial wear layer made of plastic is arranged. The full-surface wear layer made of plastic preferably has a degree of gloss and the partial wear layer made of plastic has a gloss level that is different from the degree of gloss of the full-surface wear layer made of plastic. The production of this variant includes in particular:
  • full-surface application of a plastic layer to the indicator layer in order to obtain the full-surface wear layer made of plastic, and
  • Applying a further plastic layer to the predetermined areas of the full-surface plastic wear layer using a printer, in particular depending on the image data, in order to obtain the partial plastic wear layer arranged on the full-surface plastic wear layer.

Die Grundstruktur kann vor dem Anordnen bzw. dem Beschichten der Grundstruktur mit der Indikatorschicht behandelt werden, sodass vorzugsweise die Lackindikatorschicht die Indikatorschicht aus Kunststoff besser an der Grundstruktur haftet. Dieses Behandeln kann ein mechanisches Behandeln der Grundstruktur sein, aufgrund derer z.B. die Oberfläche der Grundstruktur z.B. aufgeraut wird, sodass die Lackindikatorschicht oder die Indikatorschicht aus Kunststoff besser an der Grundstruktur haftet. Das Behandeln der Grundstruktur kann ein galvanisches und/oder chemisches Behandeln der Grundstruktur umfassen und/oder das Behandeln der Grundstruktur mit einem Laser. Aufgrund des Behandelns der Grundstruktur kann z.B. die Struktur der Grundstruktur verfeinert werden.The base structure can be treated with the indicator layer before arranging or coating the base structure, so that preferably the paint indicator layer adheres the plastic indicator layer better to the base structure. This treatment can be a mechanical treatment of the base structure, due to which, for example, the surface of the base structure is roughened, so that the paint indicator layer or the plastic indicator layer adheres better to the base structure. Treating the base structure can include galvanic and/or chemical treatment of the base structure and/or treating the base structure with a laser. Due to the treatment of the basic structure, for example, the structure of the basic structure can be refined.

Die unterschiedlichen Glanzgrade der Verschleißschichten aus Kunststoff kann z.B. durch Härten der Verschleißschichten aus Kunststoff z.B. durch eine UV-Bestrahlung, ein Elektronenstrahl- oder Laserhärten, oder durch ein Aussetzen unterschiedlicher Temperaturen erreicht werden.The different degrees of gloss of the plastic wear layers can be achieved, for example, by hardening the plastic wear layers, for example by UV irradiation, electron beam or laser hardening, or by exposure to different temperatures.

Die die Pressoberfläche zumindest teilweise bildende Verschleißschicht kann eine vollflächige Lackverschleißschicht sein, auf der eine partielle Lackverschleißschicht angeordnet ist. Insbesondere kann die vollflächige Lackverschleißschicht einen Glanzgrad und die partielle Lackverschleißschicht einen vom Glanzgrad der vollflächigen Lackverschleißschicht verschiedenen Glanzgrad aufweisen. Die Herstellung dieser Variante umfasst insbesondre ein

  • vollflächiges Auftragen einer Lackschicht auf die Indikatorschicht, um die vollflächige Lackverschleißschicht zu erhalten, und
  • ein Auftragen einer weiteren Lackschicht auf die vorbestimmten Bereiche der vollflächigen Lackverschleißschicht mittels eines Druckers in Abhängigkeit der Bilddaten, um die auf der vollflächigen Lackverschleißschicht angeordnete partielle Lackverschleißschicht zu erhalten.
The wear layer that at least partially forms the press surface can be a full-surface paint wear layer on which a partial paint wear layer is arranged. In particular, the full-surface paint wear layer can have a level of gloss and the partial paint wear layer can have a different gloss level than the full-surface paint wear layer. The production of this variant includes in particular:
  • full-surface application of a lacquer layer to the indicator layer in order to maintain the full-surface lacquer wear layer, and
  • applying a further layer of paint to the predetermined areas of the full-surface paint wear layer by means of a printer depending on the image data in order to obtain the partial paint wear layer arranged on the full-surface paint wear layer.

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

Fig. 1
ein Pressblech mit einer Pressoberfläche in einer perspektivischen Darstellung,
Fig. 2
einen Ausschnitt einer Seitenansicht des Pressblechs in geschnittener Darstellung,
Fig. 3
ein Zwischenstadium des Pressblechs während seiner Herstellung,
Fig. 4
ein weiteres Zwischenstadium des Pressblechs während seiner Herstellung, und
Fig. 5
einen Ausschnitt einer Ausführungsform der Pressoberfläche des Pressblechs nach der Erfindung in geschnittener Darstellung.
Exemplary embodiments are shown as examples in the attached schematic figures. Show it:
Fig. 1
a pressed sheet with a pressed surface in a perspective view,
Fig. 2
a section of a side view of the pressed sheet in a sectional view,
Fig. 3
an intermediate stage of the pressed sheet during its production,
Fig. 4
another intermediate stage of the pressed sheet during its production, and
Fig. 5
a section of an embodiment of the pressing surface of the pressing sheet according to the invention in a sectional view.

Die Fig. 1 zeigt in einer perspektivischen Darstellung ein Pressblech 1 mit einer Pressoberfläche 2 als Beispiel eines Presswerkzeugs und die Fig. 2 einen Ausschnitt einer Seitenansicht des Pressblechs 1 in geschnittener Darstellung. Die Pressoberfläche 2 umfasst eine Struktur aus den Erhebungen 4 und Vertiefungen 3.The Fig. 1 shows a perspective view of a pressing plate 1 with a pressing surface 2 as an example of a pressing tool and the Fig. 2 a section of a side view of the pressed sheet 1 in a sectional view. The pressing surface 2 comprises a structure made up of elevations 4 and depressions 3.

Die Struktur der Pressoberfläche 2 ist insbesondere einem natürlichen Werkstoff, im Falle des vorliegenden Ausführungsbeispiels Holz zugeordnet.The structure of the pressing surface 2 is in particular assigned to a natural material, in the case of the present exemplary embodiment, wood.

Mit dem Pressblech 1 kann ein Werkstück, z.B. eine Werkstoffplatte, beispielsweise ein Laminat, durch Verpressen hergestellt werden. Nach dem Verpressen weist das Werkstück eine der Struktur der Pressoberfläche 2 entsprechende strukturierte Oberfläche auf.With the press sheet 1, a workpiece, for example a material board, for example a laminate, can be produced by pressing. After pressing, the workpiece has a structured surface corresponding to the structure of the pressing surface 2.

Das Pressblech 1 umfasst im Falle des vorliegenden Ausführungsbeispiels eine Grundstruktur 10, eine die Pressoberfläche 2 zumindest teilweise bildende Verschleißschicht 11 und eine Indikatorschicht 12.In the case of the present exemplary embodiment, the press plate 1 comprises a basic structure 10, a wear layer 11 which at least partially forms the press surface 2, and an indicator layer 12.

Die Grundstruktur 10 ist im Falle des vorliegenden Ausführungsbeispiels aus Metall. Die Indikatorschicht 12 ist auf der Grundstruktur 10 bzw. unterhalb der Verschleißschicht 11 angeordnet und ist im Falle des vorliegenden Ausführungsbeispiels eine partielle Indikatorschicht 12.In the case of the present exemplary embodiment, the basic structure 10 is made of metal. The indicator layer 12 is arranged on the base structure 10 or below the wear layer 11 and, in the case of the present exemplary embodiment, is a partial indicator layer 12.

In der Indikatorschicht 12 sind Partikel 18 eingebettet, die eine optische Eigenschaft aufweisen, sodass die Indikatorschicht 12 ebenfalls diese optische Eigenschaft aufweist. Die Partikel 18 sind z.B. Farbpartikel, sodass die Indikatorschicht 12 die Farbe dieser Farbpartikel aufweist. Die Partikel 18 können fluoreszierende Partikel sein, sodass die Indikatorschicht 12 fluoresziert. Insbesondere kann die Indikatorschicht 12 nur die Farbpartikel, nur die fluoreszierenden Partikel oder beide Arten von Partikeln 18 aufweisen.Particles 18 which have an optical property are embedded in the indicator layer 12, so that the indicator layer 12 also has this optical property. The particles 18 are, for example, color particles, so that the indicator layer 12 has the color of these color particles. The particles 18 can be fluorescent particles, so that the indicator layer 12 fluoresces. In particular, the indicator layer 12 can have only the color particles, only the fluorescent particles or both types of particles 18.

Die Verschleißschicht 11 ist auf der Indikatorschicht 12 angeordnet, d.h. die Indikatorschicht 12 ist zwischen der Grundstruktur 10 und der Verschleißschicht 11 angeordnet. Die optische Eigenschaft der Verschleißschicht 11 unterscheidet sich von der optischen Eigenschaft der Indikatorschicht 12.The wear layer 11 is arranged on the indicator layer 12, that is, the indicator layer 12 is between the base structure 10 and the wear layer 11 arranged. The optical property of the wear layer 11 differs from the optical property of the indicator layer 12.

Im Falle des vorliegenden Ausführungsbeispiels ist die Verschleißschicht 11 eine vollflächige Verschleißschicht 11 und bildet die Pressoberfläche 2.In the case of the present exemplary embodiment, the wear layer 11 is a full-surface wear layer 11 and forms the pressing surface 2.

Im Falle des vorliegenden Ausführungsbeispiels sind in der Verschleißschicht 11 Mineralpartikel, insbesondere Industriediamantpartikel 13 eingebettet.In the case of the present exemplary embodiment, mineral particles, in particular industrial diamond particles 13, are embedded in the wear layer 11.

Die Verschleißschicht 11 ist z.B. aus Metall, insbesondere aus Nickel und die Indikatorschicht 12 ist ebenfalls aus Metall, insbesondere aus Nickel.The wear layer 11 is, for example, made of metal, in particular nickel, and the indicator layer 12 is also made of metal, in particular nickel.

Die Verschleißschicht 11 aus Metall wurde z.B. durch Auftragen auf die Indikatorschicht 12 aus Metall unter Zugabe der Industriediamantpartikel 13 mittels eines galvanischen oder chemischen Verfahrens hergestellt.The wear layer 11 made of metal was produced, for example, by applying it to the indicator layer 12 made of metal with the addition of the industrial diamond particles 13 using a galvanic or chemical process.

Die Verschleißschicht 11 und/oder die Indikatorschicht 12 können auch aus Kunststoff sein. Der Kunststoffschicht umfasst vorzugsweise Polyetheretherketon. In diesem Fall können die Schichten aus Kunststoff z.B. mittels Druckens aufgetragen werden.The wear layer 11 and/or the indicator layer 12 can also be made of plastic. The plastic layer preferably comprises polyetheretherketone. In this case, the layers of plastic can be applied, for example, by printing.

Die Verschleißschicht 11 kann eine Verschleißlackschicht sein, welche insbesondere mittels Druckens aufgetragen wird.The wear layer 11 can be a wear varnish layer, which is applied in particular by printing.

Die Indikatorschicht 12 kann eine Indikatorlackschicht sein, welche insbesondere mittels Druckens aufgetragen wird.The indicator layer 12 can be an indicator lacquer layer, which is applied in particular by printing.

Im Falle des vorliegenden Ausführungsbeispiels umfasst das Pressblech 1 einen Grundträger, insbesondere eine Grundträgerplatte 14 z.B. aus Metall, auf dem die Grundstruktur 10 angeordnet ist.In the case of the present exemplary embodiment, the pressed sheet 1 comprises a base support, in particular a base support plate 14, for example made of metal, on which the base structure 10 is arranged.

Im Falle des vorliegenden Ausführungsbeispiels umfasst die Grundstruktur 10 mehrere übereinanderliegende Grundmetallschichten 15. Die Grundmetallschichten 15 sind vorzugsweise aus Nickel.In the case of the present exemplary embodiment, the base structure 10 comprises a plurality of base metal layers 15 lying one above the other. The base metal layers 15 are preferably made of nickel.

Im Falle des vorliegenden Ausführungsbeispiels sind in den Grundmetallschichten 15 ebenfalls Mineralpartikel, insbesondere Industriediamantpartikel 16 eingebettet. Die Industriediamantpartikel 16 der Grundmetallschichten 15 können ähnlich der Industriediamantpartikel 13 der Metallschicht 11 ausgeführt sein.In the case of the present exemplary embodiment, mineral particles, in particular industrial diamond particles 16, are also embedded in the base metal layers 15. The industrial diamond particles 16 of the base metal layers 15 can be designed similarly to the industrial diamond particles 13 of the metal layer 11.

Die Grundstruktur 10 kann z.B. hergestellt werden, indem eine in der Fig. 3 gezeigte Maske 17 zumindest einmal auf eine Grundmetallschicht 15 in Abhängigkeit von der Struktur der strukturierten Pressoberfläche 2 zugeordneten Bilddaten aufgetragen wird, um Bereiche abzudecken, und anschließend eine weitere Grundmetlallschicht 15 unter Zugabe der Diamantpartikel 15 auf die von der Maske 17 nicht abgedeckten Bereiche aufgetragen wird. Dies wird wiederholt, bis die Grundstruktur 10 entstanden ist. Die Grundstruktur 10 wird insbesondere in Abhängigkeit von der Struktur der Pressoberfläche 2, d.h. in Abhängigkeit der Erhebungen 4 und Vertiefungen 5 zugeordneten Bilddaten hergestellt, indem in Abhängigkeit dieser Bilddaten die Masken 17 und die Grundmetallschichten 15 mittels des galvanischen oder chemischen Verfahrens nacheinander aufgetragen werden.The basic structure 10 can be produced, for example, by one in the Fig. 3 mask 17 shown is applied at least once to a base metal layer 15 depending on the structure of the structured pressing surface 2 associated image data in order to cover areas, and then a further base metal layer 15 is applied to the areas not covered by the mask 17 with the addition of the diamond particles 15. This is repeated until the basic structure 10 is created. The basic structure 10 is produced in particular depending on the structure of the pressing surface 2, ie depending on the image data assigned to the elevations 4 and depressions 5, by applying the masks 17 and the base metal layers 15 one after the other using the galvanic or chemical process depending on this image data.

Auf die Grundstruktur 10 wird anschließend die Indikatorschicht 12 unter Zugabe der Partikel 18 aufgetragen.The indicator layer 12 is then applied to the base structure 10 with the addition of the particles 18.

Im Falle des vorliegenden Ausführungsbeispiels ist die Indikatorschicht 12 eine partielle Indikatorschicht 12, welche nur in Bereichen 20 auf der Grundstruktur 10 angeordnet ist, die den Erhebungen 4 oder vorbestimmten Erhebungen 4 der Pressoberfläche 2 zugeordnet sind.In the case of the present exemplary embodiment, the indicator layer 12 is a partial indicator layer 12, which is arranged only in areas 20 on the base structure 10 that are assigned to the elevations 4 or predetermined elevations 4 of the pressing surface 2.

Handelt es sich bei der Indikatorschicht 12 um eine Indikatorschicht 12 aus Metall, dann kann diese hergestellt werden, indem eine in der Fig. 4 gezeigte Maske 40 in Abhängigkeit der der Struktur der Pressoberfläche 2 zugeordneten Bilddaten auf die Grundstruktur 10 z.B. mittels Druckens aufgetragen wird, sodass die Bereiche 20 der Grundstruktur 10, die die den Erhebungen 4 oder vorbestimmten Erhebungen 4 der Pressoberfläche 2 zugeordnet sind, von der Maske 40 frei bleiben. Anschließend wird die Indikatorschicht 12 unter Zugabe der die optischen Eigenschaften aufweisenden Partikel 18 auf die Bereiche 20 der Grundstruktur 10, die frei von der Maske 40 sind, mittels eines galvanischen oder chemischen Verfahrens aufgetragen. Danach wird die Verschleißschicht 11 aus Metall auf die Indikatorschicht 12 aufgetragen.If the indicator layer 12 is an indicator layer 12 made of metal, then it can be produced by using one in the Fig. 4 mask 40 shown is applied to the basic structure 10, for example by printing, depending on the image data assigned to the structure of the pressing surface 2, so that the areas 20 of the basic structure 10, which are assigned to the elevations 4 or predetermined elevations 4 of the pressing surface 2, from the mask 40 remain free. The indicator layer 12 is then added with the addition of the optical properties Particles 18 are applied to the areas 20 of the basic structure 10, which are free of the mask 40, by means of a galvanic or chemical process. The wear layer 11 made of metal is then applied to the indicator layer 12.

Handelt es sich bei der Indikatorschicht 12 um eine Indikatorschicht 12 aus Kunststoff, so kann diese mittels eines Druckers unter Zugabe der Partikel 18 auf die Bereiche 20 der Grundstruktur 10 aufgetragen werden. Anschließend wird die die Pressoberfläche 2 zumindest teilweise bildende Verschleißschicht 11 aus Kunststoff mittels eines Druckers insbesondere unter Zugabe der Industriediamantpartikel 18 aufgetragen. Handelt es sich bei der Indikatorschicht 12 um eine Indikatorlackschicht, so kann diese mittels eines Druckers unter Zugabe der Partikel 18 auf die Bereiche 20 der Grundstruktur 10 aufgetragen werden.If the indicator layer 12 is an indicator layer 12 made of plastic, it can be applied to the areas 20 of the basic structure 10 using a printer with the addition of the particles 18. The wear layer 11 made of plastic, which at least partially forms the pressing surface 2, is then applied using a printer, in particular with the addition of the industrial diamond particles 18. If the indicator layer 12 is an indicator lacquer layer, it can be applied to the areas 20 of the basic structure 10 using a printer with the addition of the particles 18.

Das Auftragen der Indikatorschicht 12 erfolgt vorzugsweise in Abhängigkeit von der Struktur der Pressoberfläche 2 zugeordneten Bilddaten.The indicator layer 12 is preferably applied depending on the image data assigned to the structure of the pressing surface 2.

Die Fig. 5 zeigt einen Ausschnitt einer Ausführungsform einer Pressoberfläche 52 des Pressblechs 1 nach der Erfindung in geschnittener Darstellung. Diese Pressoberfläche 52 unterscheidet sich von der in der Fig. 2 gezeigten Pressoberfläche 2 dadurch, dass das Pressblech 1 bzw. die Pressoberfläche 52 eine partielle Verschleißschicht 53 umfasst, in der weitere Mineralpartikel, insbesondere weitere Industriediamantpartikel 54 eingebettet sind. Die partielle Verschleißschicht 53 ist auf der Verschleißschicht 11 angeordnet, sodass die partielle Verschleißschicht 53 und die von der partiellen Verschleißschicht 53 nicht abgedeckten Bereiche der Verschleißschicht 11 die Pressoberfläche 52 bilden.The Fig. 5 shows a section of an embodiment of a pressing surface 52 of the pressing sheet 1 according to the invention in a sectional view. This pressing surface 52 differs from that in the Fig. 2 shown pressing surface 2 in that the pressing plate 1 or the pressing surface 52 comprises a partial wear layer 53, in which further mineral particles, in particular further industrial diamond particles 54, are embedded. The partial wear layer 53 is arranged on the wear layer 11, so that the partial wear layer 53 and the areas of the wear layer 11 not covered by the partial wear layer 53 form the pressing surface 52.

Die Verschleißschicht 11 kann vor dem Auftragen der partiellen Verschleißschicht 53 vorbehandelt werden, z.B. chemisch, mechanisch, galvanisch oder mittels eines Lasers.The wear layer 11 can be pretreated before applying the partial wear layer 53, for example chemically, mechanically, galvanically or by means of a laser.

Die Verschleißschicht 11 und die partielle Verschleißschicht 53 weisen insbesondere jeweils einen Glanzgrad auf, die sich unterscheiden.The wear layer 11 and the partial wear layer 53 in particular each have a different level of gloss.

Sind die Verschleißschicht 11 und die partielle Verschleißschicht 53 aus Metall, dann können die unterschiedlichen Glanzgrade z.B. durch die Verwendung unterschiedlich glänzender Metalle für die Verschleißschicht 11 und die weitere Verschleißschicht 53 erzeugt werden. Es können auch gleiche Metalle verwendet werden, die aufgrund unterschiedlicher Auftragsmethoden die unterschiedlichen Glanzgrande aufweisen.If the wear layer 11 and the partial wear layer 53 are made of metal, then the different degrees of gloss can be generated, for example, by using metals of different gloss for the wear layer 11 and the further wear layer 53. The same metals can also be used, which have different levels of gloss due to different application methods.

Die partielle Verschleißschicht 53 aus Metall mit darin eingebetteten weiteren Industriediamantpartikeln 54 wird z.B. hergestellt, indem auf der Verschleißschicht 11 aus Metall, in der die Industriediamantartikel 13 eingebettet sind, eine Maske z.B. durch Drucken aufgetragen wird, um vorbestimmte Bereich der Verschleißschicht 11 abzudecken. Danach wird eine weitere Metallschicht auf die Bereiche der Verschleißschicht 11, die nicht mit der Maske versehen sind, unter Zugabe der weiteren Industriediamantpartikel 54 mittels eines galvanischen oder chemischen Verfahrens aufgetragen, um die partielle Verschleißschicht 53 mit darin eingebetteten weiteren Industriediamantpartikeln 54 zu erhalten.The partial wear layer 53 made of metal with further industrial diamond particles 54 embedded therein is produced, for example, by applying a mask, for example by printing, to the wear layer 11 made of metal in which the industrial diamond articles 13 are embedded, in order to cover predetermined areas of the wear layer 11. A further metal layer is then applied to the areas of the wear layer 11 that are not provided with the mask, with the addition of the further industrial diamond particles 54, using a galvanic or chemical process in order to obtain the partial wear layer 53 with further industrial diamond particles 54 embedded therein.

Sind die Verschleißschichten 11, 53 aus Kunststoff, dann kann die partielle Verschleißschicht 53 mit darin eingebetteten weiteren Industriediamantpartikeln 54 z. B. hergestellt, indem auf der Verschleißschicht 11 eine weiteren Kunststoffschicht auf die vorbestimmten Bereiche 20 der vollflächigen Verschleißschicht 11 aus Kunststoff mittels eines Druckers insbesondere in Abhängigkeit der Bilddaten aufgetragen wird, um die auf der vollflächigen Verschleißschicht 11 aus Kunststoff angeordnete partielle Verschleißschicht 53 aus Kunststoff zu erhalten.If the wear layers 11, 53 are made of plastic, then the partial wear layer 53 can have further industrial diamond particles 54 embedded therein, for example. B. produced by applying a further plastic layer on the wear layer 11 to the predetermined areas 20 of the full-surface wear layer 11 made of plastic using a printer, in particular depending on the image data, in order to create the partial wear layer 53 made of plastic arranged on the full-surface wear layer 11 made of plastic receive.

Die unterschiedlichen Glanzgrade der Verschleißschichten aus Kunststoff können z.B. durch Härten der Verschleißschichten aus Kunststoff z.B. durch eine UV-Bestrahlung, ein Elektronenstrahl- oder Laserhärten, oder durch ein Aussetzen unterschiedlicher Temperaturen erreicht werden.The different degrees of gloss of the plastic wear layers can be achieved, for example, by hardening the plastic wear layers, for example by UV irradiation, electron beam or laser hardening, or by exposing them to different temperatures.

Claims (12)

  1. A pressing tool for producing a workpiece, comprising a pressing surface (2, 52) having a structure of protrusions (4) and recesses (3), a wear layer (11) with an optical property, the wear layer (11) at least partially forming the pressing surface (2, 52), and an indicator layer (12), which is arranged under the wear layer (11) and in which particles (18) having optical properties are embedded, so that the indicator layer (12) has a corresponding optical property, which is different from the optical property of the wear layer (11),
    characterized in that the wear layer (11) at least partially forming the pressing surface (52) is a full-surface wear layer, on which a partial wear layer (53) is arranged, and the full-surface wear layer (11) has a degree of gloss, and the partial wear layer (53) has a degree of gloss that is different from the degree of gloss of the full-surface wear layer (11).
  2. The pressing tool according to claim 1, wherein the indicator layer (12) is a partial indicator layer, which is arranged under the wear layer (11) only in regions (20) which are assigned to the protrusions (4) or predetermined protrusions (4).
  3. The pressing tool according to claim 1 or 2, wherein the particles (18) have a size in the micrometer or nanometer range, and/or are color particles, so that the indicator layer (12) has a corresponding color, and/or are fluorescent particles, so that the indicator layer (12) has fluorescent properties.
  4. The pressing tool according to one of claims 1 to 3, wherein the indicator layer (12) is an indicator layer made of metal, in particular of chromium-free metal, or of plastic, or is a lacquer indicator layer.
  5. The pressing tool according to one of claims 1 to 4, wherein mineral particles (13) are embedded in the wear layer (11) at least partially forming the pressing surface (2, 52).
  6. A method for producing a pressing tool (1) according to one of claims 1 to 5, wherein the wear layer (11) at least partially forming the pressing surface (52) is a full-surface wear layer made of metal, on which a partial wear layer (53) made of metal is arranged, and the full-surface wear layer (11) made of metal has a degree of gloss, and the partial wear layer (53) made of metal has a degree of gloss that is different from the degree of gloss of the full-surface wear layer (11) made of metal, comprising the following method steps:
    - applying the indicator layer (12) to a base structure (10) with the addition of the particles (18) having the optical properties,
    - applying the wear layer (11) at least partially forming the pressing surface (2, 52),
    - applying the wear layer (11) to the indicator layer (12),
    - applying a metal layer to the indicator layer (12) over the full surface in order to obtain the full-surface wear layer (11) made of metal,
    - applying a mask to the full-surface wear layer (11) made of metal, dependent on image data assigned to the structure of the pressing surface (52), so that predetermined regions of the full-surface wear layer made of metal (11), which in particular are assigned to the protrusions (4) or predetermined protrusions (4) of the pressing surface (52), remain free of the mask, and
    - applying a further metal layer to the predetermined regions of the full-surface wear layer made of metal (11) by means of a galvanic or chemical method, dependent on the image data, in order to obtain the partial wear layer (53) made of metal arranged on the full-surface wear layer made of metal (11).
  7. The method according to claim 6, wherein the wear layer (11) made of metal and indicator layer (12) is a partial indicator layer made of metal, which is arranged on the base structure (10) only in regions (20) which are assigned to the protrusions (4) or predetermined protrusions (4) of the pressing surface (2, 52), comprising
    - applying a mask (40) to the base structure (10), so that regions (20) of the base structure (10), which are assigned to the protrusions (4) or predetermined protrusions (4) of the pressing surface (2, 52), remain free of the mask (40), and
    - applying the indicator layer (12) to the regions (20) of the base structure (10) that are free of the mask (40) with the addition of the particles (18) having the optical properties, by means of a galvanic or chemical method, and
    - applying the wear layer (11) at least partially forming the pressing surface (2, 52) by means of a galvanic or chemical method.
  8. The method according to 7, comprising applying the mask (40) and the partial indicator layer (12) dependent on image data assigned the structure of the pressing surface (2, 52).
  9. The method according to claim 6, wherein the wear layer (11) is made of plastic, or is a lacquer wear layer, and the indicator layer (12) is a partial indicator layer made of plastic or a partial lacquer indicator layer, which is arranged on the base structure (10) only in regions (20) which are assigned to the protrusions (4) or predetermined protrusions (4) of the pressing surface (2, 52), comprising
    - applying the indicator layer (12) made of plastic or the lacquer indicator layer to the regions (20) of the base structure (10) with the addition of the particles (18) having the optical properties by means of a printer, and
    - applying the wear layer (11) made of plastic or the lacquer wear layer at least partially forming the pressing surface (2, 52) by means of a printer.
  10. The method according to 9, comprising applying the partial indicator layer made of plastic or the lacquer indicator layer dependent on image data assigned to the structure of the pressing surface (2, 52).
  11. The method according to one of claims 6, 9 or 10, wherein the wear layer (11) at least partially forming the pressing surface (52) is a full-surface wear layer made of plastic, on which a partial wear layer made of plastic is arranged, and the full-surface wear layer made of plastic has a degree of gloss, and the partial wear layer made of plastic has a degree of gloss that is different from the degree of gloss of the full-surface wear layer made of plastic, comprising
    - applying a plastic layer to the indicator layer (12) over the full surface in order to obtain the full-surface wear layer made of plastic (11), and
    - applying a further plastic layer to the predetermined regions of the full-surface wear layer made of plastic (11) by means of a printer, dependent on the image data, in order to obtain the partial plastic layer (53) arranged on the full-surface wear layer made of plastic (11).
  12. The method according to one of claims 6, 9 or 10, wherein the wear layer (11) at least partially forming the pressing surface (52) is a full-surface lacquer wear layer, on which a partial lacquer wear layer is arranged, and the full-surface lacquer wear layer has a degree of gloss, and the partial lacquer wear layer has a degree of gloss that is different from the degree of gloss of the full-surface wear different, comprising
    - applying a lacquer layer to the indicator layer (12) over the full surface in order to obtain the full-surface lacquer wear layer, and
    - applying a further lacquer layer to the predetermined regions of the full-surface lacquer wear layer by means of a printer dependent on the image data, in order to obtain the partial lacquer wear layer arranged on the full-surface lacquer wear layer.
EP20792586.8A 2019-10-15 2020-10-12 Press tool and method for producing a press tool Active EP4045304B1 (en)

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PCT/EP2020/078572 WO2021074063A1 (en) 2019-10-15 2020-10-12 Press tool and method for producing a press tool

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DE102021101899A1 (en) 2021-01-28 2022-07-28 Tremco CPG Germany GmbH Sealing tape for sealing building joints
DE102022125373B4 (en) 2022-09-30 2024-09-19 Hueck Rheinische Gmbh Press tool with a nickel layer

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JP2003221687A (en) * 2002-01-31 2003-08-08 Yodogawa Steel Works Ltd Clear decorative steel plate
BE1017536A6 (en) * 2007-04-02 2008-11-04 Flooring Ind Ltd PERSELEMENT AND METHOD FOR MANUFACTURING LAMINATE.
DE102007055053A1 (en) * 2007-11-16 2009-05-20 Hueck Engraving Gmbh & Co. Kg Method for processing a structured surface
EP2626216B1 (en) * 2011-03-10 2018-07-11 HUECK Rheinische GmbH Method for processing a structured surface of an embossing tool and the embossing tool
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AU2020365349A1 (en) 2022-05-19
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