EP3109056B2 - Verfahren und vorrichtung zum herstellen einer struktur auf einer oberfläche - Google Patents

Verfahren und vorrichtung zum herstellen einer struktur auf einer oberfläche Download PDF

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Publication number
EP3109056B2
EP3109056B2 EP16171759.0A EP16171759A EP3109056B2 EP 3109056 B2 EP3109056 B2 EP 3109056B2 EP 16171759 A EP16171759 A EP 16171759A EP 3109056 B2 EP3109056 B2 EP 3109056B2
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EP
European Patent Office
Prior art keywords
droplets
base layer
liquid base
sprayed
workpiece
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Active
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EP16171759.0A
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German (de)
English (en)
French (fr)
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EP3109056A1 (de
EP3109056B1 (de
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Hymmen GmbH Maschinen und Anlagenbau
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Hymmen GmbH Maschinen und Anlagenbau
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Application filed by Hymmen GmbH Maschinen und Anlagenbau filed Critical Hymmen GmbH Maschinen und Anlagenbau
Priority to PL16171759.0T priority Critical patent/PL3109056T5/pl
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/0011—Pre-treatment or treatment during printing of the recording material, e.g. heating, irradiating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
    • B41M3/008—Sequential or multiple printing, e.g. on previously printed background; Mirror printing; Recto-verso printing; using a combination of different printing techniques; Printing of patterns visible in reflection and by transparency; by superposing printed artifacts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/0041—Digital printing on surfaces other than ordinary paper
    • B41M5/0047—Digital printing on surfaces other than ordinary paper by ink-jet printing

Definitions

  • the present invention relates to a method for producing a structure on a surface of a flat workpiece, and a device for producing the structure.
  • a decoratively coated wood-based panel is state of the art and is used in a variety of applications, e.g. for the production of furniture, floor laminates and wall, ceiling or exterior panels.
  • a typical example of these wood-based panels is chipboard, which is coated with a decoratively printed paper.
  • fiberboard e.g. MDF (medium density fiberboard) or HDF (high density fiberboard)
  • cement fiberboard and cement-bonded chipboard which are used, for example, in thicknesses of approx. 3 to 50 mm for various applications.
  • this is produced, for example, in a melamine coating process using an embossing die.
  • paper printed with a wood look is impregnated with a melamine resin, dried and then pressed onto a chipboard in a heating press with an embossing plate.
  • the result is a 12 mm thick chipboard that is coated with a beech imitation look.
  • the embossing plate then creates structures with a depth of usually 20 ⁇ m up to 150 ⁇ m or 200 ⁇ m.
  • melamine pressing process there are other processes for coating wood-based panels.
  • a wood-based panel is painted, printed and then provided with a transparent top coat.
  • a structure with a structured top coat roller is, for example, in DE 10 2007 019 871 described.
  • the EP 1 902 849 A1 discloses an inkjet printing process in which a base layer is partially cured and then printed with ink, ink droplets being introduced into the base layer.
  • the WO 2015/078449 A1 discloses a method for inkjet or ink printing, wherein a liquid ink-receiving layer is applied to a substrate, liquid printing media is then applied thereto, and the ink-receiving layer is then solidified.
  • the aim of the method according to the invention and the device according to the invention is to maintain the advantages of the flexibility of a digital structure and at the same time to exclude the disadvantages mentioned above.
  • a workpiece to be coated e.g. a wood-based panel, a cement fiber board or similar (flat workpiece) is coated on a surface of the workpiece with a liquid base layer.
  • a structure is then created in this still liquid base layer with the help of sprayed liquid droplets, with depressions being created by spraying the droplets into the previously applied liquid base layer.
  • this structure created in this way is fixed by fixing the liquid base layer. This is done, for example, by drying the liquid base layer and the sprayed-on liquid droplets together.
  • the device according to the invention is defined in claim 13. Further advantageous embodiments of the present invention are the subject of the subclaims.
  • the sprayed droplets Before or after fixing the liquid base layer, the sprayed droplets can be evaporated.
  • the sprayed droplets can also be fixed when the liquid base layer is fixed.
  • the droplets can be sprayed onto a surface of the workpiece according to a digital template from a digital print head or alternatively from a digital nozzle bar of a device for generating a structure.
  • This device has a control unit or a control device.
  • the control takes place according to a digital template, which can be retrieved, for example, from a data memory belonging to the device.
  • the control device can appropriately control the delivery of the droplets, for example the delivery volume and the speed of the droplets when they hit the base layer.
  • the liquid base layer and/or the sprayed droplets can consist of a radiation-hardening material.
  • Fixing can take place in the form of radiation curing using UV radiation or electron beams.
  • a corresponding device has appropriate UV lamps or electron beam-generating elements.
  • the sprayed droplets which are sprayed on according to a or the digital template, are coordinated with a decorative image previously or subsequently printed on the surface in such a way that the resulting structure is applied to the workpiece synchronously with the printed decorative image at least in partial areas of the surface.
  • the sprayed droplets can consist of a material containing acrylate and are applied to the workpiece based on a digital template.
  • a further process step can be carried out in which further droplets are sprayed onto the then fixed base layer and then cured.
  • the large number of droplets can consist of at least two different materials, so that droplets with one material are applied to certain places and droplets with a different material composition are applied to certain places.
  • a chemical reaction can take place between the material of the sprayed droplets and the still liquid base layer, such that the reaction product between the base layer and the droplets visually and/or the structure at that point. or haptically changed.
  • sprayed droplets 3 can also be seen, which are shown in different groups, individual drops or several drops lined up next to each other.
  • Fig. 3 The result of the spraying is in Fig. 3 shown, in which the droplets 3 have made corresponding depressions in the previously applied liquid base layer 2 and have settled at the end of the depression.
  • the parameters used material, droplet speed, droplet volume, etc.
  • elevations can also form due to the displaced paint of the liquid base layer.
  • Fig. 4 the workpiece 1 with the liquid base layer 2 applied to it can be seen from above.
  • the corresponding structures that the sprayed droplets 3 created here are sketched.
  • a chipboard with a thickness of 12 mm is fed to the device according to the invention.
  • the device is used to create a structure on a surface of the workpiece with a transport device for transporting and / or removing a workpiece provided with a liquid base layer in a transport direction, with one or more print heads and / or one or more nozzle bars for dispensing droplets and/or into the liquid base layer and with a fixing device, which is arranged downstream of the print head(s) in the transport direction and which radiates heat and/or light onto the base layer of the workpiece, the device having a control device.
  • Light is not just light to understand the visible wavelength range, but in particular also UV light and infrared light.
  • the device includes in the specific embodiment variant the Fig. 5 Digital print heads 4, a drying device 5, designed as a UV LED and a continuous transport 6, here designed as a belt transport.
  • a dispensing device for applying the base layer 2 can also be provided.
  • the chipboard can already be coated with a white primer.
  • a decorative image for example a wood imitation, a tile imitation or even a photorealistic image, to be printed on the already primed chipboard beforehand.
  • the 12mm chipboard pretreated in this way is then coated with a liquid base layer in the form of an acrylate varnish, the layer thickness being between 5 ⁇ m and 200 ⁇ m, preferably between 10 ⁇ m and 60 ⁇ m.
  • the acrylate varnish (“liquid base layer”) is in this exemplary embodiment a formulation with 30% by weight of a bi-acrylate HDDA, 40% by weight of a bi-acrylate DPGDA, 10% by weight of a cross-linker TM PTA, 3% by weight of an industry-standard photoinitiator and 17% by weight of other ingredients.
  • the acrylate varnish has a viscosity of 80 - 500 mPa s, preferably 150 - 400 mPa s, measured at 25 ° C and normal pressure with a rheometer (eg the Kinexus model from Malvern).
  • the plate precoated in this way is then fed to a digital printing unit, in which an ink that also contains acrylate is sprayed from digital print heads (4) into the still liquid acrylate-containing base layer (2).
  • the acrylate-containing ink contains 65% by weight of a methacrylate CTFA, 15% by weight of an N-vinyl caprolactam NFC, 8% by weight of a photoinitiator and 12% by weight of other components.
  • the viscosity of the ink is 8 - 30 mPa s at a processing temperature of 20 - 45 °C (measured with the Kinexus rheometer from Malvern) and normal pressure.
  • the surface tension is 22 - 38 mN/m, measured in a tensiometer, model K100 from Krüss at 20°C and normal pressure.
  • the droplets have a volume of 3 - 100 pl, particularly preferably 6 - 60 pl.
  • the droplets are applied according to the digital printing template, so that the digital printing device can print a corresponding "image" as a variation of the layer thickness into the still liquid base layer.
  • the droplets are sprayed at a distance of 0.5 mm to 10 mm from the liquid base layer; the distance is particularly preferably 0.5 mm to 4 mm. When the droplets hit the base layer, for example 50 ⁇ m thick, they displace the liquid material at that point.
  • the droplet material can penetrate into the liquid base layer, creating a depression, for example 50% of the base layer. In the application example presented here, the penetration depth is 25 ⁇ m.
  • the droplet size and speed are changed accordingly, the droplet can also penetrate less deeply and/or throw displaced material to the side of the droplet, so that both a depression and adjacent elevations are created in the liquid base layer.
  • this curing is carried out within less than 5 seconds after printing using UV LEDs, which harden the acrylate material, which also contains corresponding UV photoinitiators, to such an extent that the surface solidifies and the liquid no longer runs more can happen.
  • the final hardening occurs through more intensive UV irradiation.
  • a second pass can take place, in which a further liquid base layer is applied and droplets are also sprayed on.
  • a decorative image is printed on the surface that was previously structured according to the invention.
  • the printing process is also carried out using an inkjet printer.
  • the decorative image is coordinated with the three-dimensional structure in such a way that the decorative elements of the image are synchronous with the previously created three-dimensional structure at least in partial areas of the surface.
  • Synchronous means that the decorative imaging achieves a lengthwise deviation from the underlying three-dimensional structure of less than 5 mm, particularly preferably less than 1 mm. Deviations are measured here between parts of the image, e.g. a decoratively printed knothole, and the correspondingly assigned structure, e.g. a round depression of the same size as the printed knothole.
  • the decorative image is first printed on the workpiece, e.g. the wood-based panel, before the surface is structured.
  • the material surface has a suitable print-receiving layer as a coating, which in one embodiment consists of a white lacquer.
  • the decorative image is then printed onto this, preferably also using an inkjet process.
  • the coating is then carried out with the liquid base layer, which in this case is transparent in order to recognize the decoratively printed image underneath.
  • the structure according to the invention is then created by spraying on the droplets, which is then fixed by the subsequent hardening of the liquid layer and the droplets.
  • a synchronous structure is created between the underlying image and the applied structure. This synchronous structure is created by comparing electronic image data used both for printing the decorative underlying image and for spraying the droplets into the liquid base layer.
  • a cement fiber board with a thickness of 10 mm is transported to a roller application device, in which an aqueous acrylate varnish colored white with titanium dioxide is applied to the cement fiber board via roller application with a layer thickness of 40 ⁇ m.
  • the aqueous acrylate paint has a viscosity of 300 to 600 mPa s.
  • the cement fiber board with the liquid base layer is then fed to a digital printer in which an aqueous ink with droplets with a volume of 10 - 40 pL is sprayed on.
  • the resulting structure is then pre-dried in an IR lamp and then finally dried in a nozzle channel in order to fix the resulting surface structure.
  • the liquid applied base layer can consist of an aqueous paint system or a solvent-based paint system. After the droplets have been sprayed on, this is then dried in a nozzle dryer, for example, and thus maintains the structure.
  • a solvent-based ink is first digitally printed onto a smooth workpiece, which reacts with the aqueous acrylate varnish applied in liquid form in a second step, such that the ink printed in the first step displaces the varnish in these areas. This displacement creates a structure at that point, which is then dried and fixed in the subsequent step by drying the aqueous acrylate varnish.
  • any combination of the various process steps ie printing a decorative image, applying a liquid base layer, spraying droplets into the liquid base layer, fixing and curing the base layer, if necessary printing a decorative image onto an existing, previously created structure and also printing a structure according to the state of the art already mentioned above in accordance with the document DE 10 2009 044 802 possible.
  • the best combination of these process steps depends on which structure depths and which structure edge sharpness are to be created.
  • the composition of the liquid base layer depends on the selected combination of process steps.
  • the liquid base layer is made of a transparent material, preferably an acrylate, which contains photoinitiators and hardens by UV radiation.
  • the liquid base layer is colored white in order to print the optical image onto the structure created. Other colors, depending on the application for the liquid base layer, are also possible.

Landscapes

  • Application Of Or Painting With Fluid Materials (AREA)
  • Apparatuses And Processes For Manufacturing Resistors (AREA)
  • Telephone Function (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
EP16171759.0A 2015-06-25 2016-05-27 Verfahren und vorrichtung zum herstellen einer struktur auf einer oberfläche Active EP3109056B2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL16171759.0T PL3109056T5 (pl) 2015-06-25 2016-05-27 Sposób i urządzenie do wytwarzania struktury na powierzchni

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015110236.6A DE102015110236B4 (de) 2015-06-25 2015-06-25 Verfahren und Vorrichtung zum Herstellen einer Struktur auf einer Oberfläche

Publications (3)

Publication Number Publication Date
EP3109056A1 EP3109056A1 (de) 2016-12-28
EP3109056B1 EP3109056B1 (de) 2018-02-14
EP3109056B2 true EP3109056B2 (de) 2023-11-29

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EP16171759.0A Active EP3109056B2 (de) 2015-06-25 2016-05-27 Verfahren und vorrichtung zum herstellen einer struktur auf einer oberfläche

Country Status (10)

Country Link
EP (1) EP3109056B2 (OSRAM)
DE (2) DE102015110236B4 (OSRAM)
DK (1) DK3109056T4 (OSRAM)
ES (1) ES2667545T5 (OSRAM)
FI (1) FI3109056T4 (OSRAM)
HU (1) HUE036843T2 (OSRAM)
LT (1) LT3109056T (OSRAM)
NO (1) NO2750604T3 (OSRAM)
PL (1) PL3109056T5 (OSRAM)
PT (1) PT3109056T (OSRAM)

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DE102017113035B4 (de) 2017-06-13 2019-10-31 Hymmen GmbH Maschinen- und Anlagenbau Verfahren und Vorrichtung zur Herstellung einer dekorativen Oberfläche
PT3415316T (pt) 2017-06-13 2020-05-06 Hymmen Gmbh Maschinen & Anlagenbau Processo e dispositivo de fabrico de uma superfície estruturada
EP3415318B1 (de) 2017-06-13 2020-02-26 Hymmen GmbH Maschinen- und Anlagenbau Verfahren und vorrichtung zur herstellung eines dekorativen werkstückes und werkstück
EP3415317B2 (de) 2017-06-13 2023-09-06 Hymmen GmbH Maschinen- und Anlagenbau Verfahren und vorrichtung zur herstellung einer dekorativen oberfläche
DE102017113036B4 (de) 2017-06-13 2019-10-31 Hymmen GmbH Maschinen- und Anlagenbau Verfahren und Vorrichtung zur Herstellung eines dekorativen Werkstückes und Werkstück
DE102017125744A1 (de) * 2017-11-03 2019-05-09 Falquon Gmbh Verfahren zur Herstellung einer dekorierten Oberfläche eines Gegenstandes
BE1025875B1 (nl) 2018-01-04 2019-08-06 Unilin Bvba Werkwijzen voor het vervaardigen van panelen
IT201900007377A1 (it) 2019-05-28 2020-11-28 Giorgio Macor Metodo e apparato per generare una struttura superficiale
IT201800008133A1 (it) * 2018-08-22 2020-02-22 Giorgio Macor Metodo e apparato per generare una struttura tridimensionale
CN118976679A (zh) 2018-08-22 2024-11-19 乔治·马可 产生表面结构的方法和设备
AU2019333292B2 (en) 2018-08-30 2023-11-23 Interface, Inc. Digital printing for flooring and decorative structures
GB201814668D0 (en) * 2018-09-10 2018-10-24 Ricoh Co Ltd Printed substrate and method for printing onto a substrate
PL4159473T3 (pl) 2018-10-31 2025-11-17 Jesús Francisco Barberan Latorre Sposób wykonania trójwymiarowej struktury na powierzchni płaskiego podłoża
DE102019206431A1 (de) 2019-05-03 2020-11-05 Hymmen GmbH Maschinen- und Anlagenbau Verfahren zum Herstellen einer Struktur auf einer Oberfläche
EP3766703A1 (de) 2019-07-19 2021-01-20 Achilles veredelt Nord GmbH Verfahren zur herstellung einer struktur auf einer oberfläche
EP3999358B1 (de) 2019-07-19 2023-08-30 Achilles veredelt GmbH Verfahren zur herstellung einer struktur auf einer oberfläche
CN110696516A (zh) * 2019-10-12 2020-01-17 浙江晶通塑胶有限公司 一种数码印刷地板的加工工艺
EP3865308A1 (en) 2020-02-12 2021-08-18 Jesús Francisco Barberan Latorre Method and machine for producing reliefs, as well as panels containing said reliefs
IT202000008449A1 (it) 2020-04-22 2021-10-22 Macor Giorgio Metodo e apparato per generare una struttura superficiale.
WO2022064072A1 (de) 2020-09-28 2022-03-31 Hymmen GmbH Maschinen- und Anlagenbau Verfahren und vorrichtung zur herstellung einer grundschicht mit unterschiedlichen härtegraden und werkstück mit unterschiedlichen härtegraden
HUE066459T2 (hu) * 2020-10-02 2024-08-28 Latorre Jesus Francisco Barberan Eljárás és rendszer hordozón domborulat elõállítására
EP4271573A1 (en) 2020-12-29 2023-11-08 Giorgio Macor Method providing a workpiece with a three-dimensionally textured surface coating
IT202100008192A1 (it) 2021-04-01 2022-10-01 Giorgio Macor Metodo per decorare un materiale
ES2992587T3 (en) * 2021-02-26 2024-12-16 Barberan Latorre Jesus Francisco Method and system for producing a relief on a substrate
IT202200008756A1 (it) 2022-05-02 2023-11-02 Cefla Soc Cooperativa Metodo e apparato per formare una struttura superficiale
IT202200015618A1 (it) 2022-07-25 2024-01-25 Giorgio Macor Metodo per generare una decorazione delaminabile a comando e prodotto così ottenuto.
JP7219850B1 (ja) 2022-10-31 2023-02-08 サカタインクス株式会社 紫外線遮光用インク組成物、及びそれを用いたエンボス表面を有する基材の製造方法
DE102022213490A1 (de) 2022-12-12 2024-06-13 Hymmen GmbH Maschinen- und Anlagenbau Verfahren zur Herstellung einer dekorativen Oberfläche
DE102022213489B3 (de) 2022-12-12 2023-12-14 Hymmen GmbH Maschinen- und Anlagenbau Herstellung einer dekorativen Oberfläche
EP4438319A1 (de) 2023-03-31 2024-10-02 Fritz Egger GmbH & Co. OG Verfahren zur strukturierung einer oberfläche durch direktes beaufschlagen mit einem behandlungsmedium und kantenleiste mit oberflächenstrukturierung
EP4438321A1 (de) 2023-03-31 2024-10-02 Fritz Egger GmbH & Co. OG Verfahren zur strukturierung einer oberfläche durch indirektes beaufschlagen mit einem behandlungsmedium und danach hergestellte kantenleiste
LU504519B1 (en) 2023-06-15 2024-12-16 Tarkett Gdl Sa Surface covering panel with transitional edge
LU504655B1 (en) 2023-07-03 2025-01-03 Tarkett Gdl Sa Decorative surface coverings digitally embossed
LU506092B1 (en) 2024-01-12 2025-07-14 Tarkett Gdl Sa Three-Dimensional Surface Texturing

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PL3109056T3 (pl) 2018-07-31
LT3109056T (lt) 2018-05-10
HUE036843T2 (hu) 2018-08-28
EP3109056B1 (de) 2018-02-14
DK3109056T4 (da) 2024-02-12
NO2750604T3 (OSRAM) 2018-03-03
PL3109056T5 (pl) 2024-01-15
DE102015110236A1 (de) 2016-12-29
FI3109056T4 (fi) 2024-02-08
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PT3109056T (pt) 2018-05-07
DE202016008502U1 (de) 2018-03-08

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