EP4121301A1 - Procédé de production d'un panneau décoratif comprenant l'application d'un film sur un substrat au moyen d'une charge électrostatique - Google Patents

Procédé de production d'un panneau décoratif comprenant l'application d'un film sur un substrat au moyen d'une charge électrostatique

Info

Publication number
EP4121301A1
EP4121301A1 EP21709743.5A EP21709743A EP4121301A1 EP 4121301 A1 EP4121301 A1 EP 4121301A1 EP 21709743 A EP21709743 A EP 21709743A EP 4121301 A1 EP4121301 A1 EP 4121301A1
Authority
EP
European Patent Office
Prior art keywords
film
carrier
applying
substrate
decorative panel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP21709743.5A
Other languages
German (de)
English (en)
Inventor
Hans-Jürgen HANNIG
Peter Wendling
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Akzenta Paneele and Profile GmbH
Original Assignee
Akzenta Paneele and Profile GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Akzenta Paneele and Profile GmbH filed Critical Akzenta Paneele and Profile GmbH
Publication of EP4121301A1 publication Critical patent/EP4121301A1/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C5/00—Processes for producing special ornamental bodies
    • B44C5/04—Ornamental plaques, e.g. decorative panels, decorative veneers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/0008—Electrical discharge treatment, e.g. corona, plasma treatment; wave energy or particle radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/14—Printing or colouring
    • B32B38/145—Printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
    • B44C1/10—Applying flat materials, e.g. leaflets, pieces of fabrics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2310/00—Treatment by energy or chemical effects
    • B32B2310/021—Treatment by energy or chemical effects using electrical effects
    • B32B2310/025—Electrostatic charges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2451/00—Decorative or ornamental articles

Definitions

  • the present invention relates to a method for producing a decorative panel comprising the application of a film to a carrier.
  • the present invention relates in particular to a method in which a film is laminated onto a carrier as part of a manufacturing process for a decorative panel.
  • decorative panel is to be understood as meaning wall, ceiling, door or floor panels which have a decoration applied to a carrier plate.
  • Decorative panels are used in a variety of ways both in the area of interior design of rooms and for the decorative cladding of buildings, for example in trade fair construction.
  • One of the most common areas of application for decorative panels is their use as floor covering, to cover ceilings, walls or doors.
  • the decor panels often have a decor and a surface structure that is intended to imitate a natural material.
  • a film onto a carrier.
  • the carrier laminated with the film can then go through further treatment steps or can remain in this way.
  • the object of the present invention is to create a solution for an improved lamination of a film on a carrier, for example in the context of the production of a decorative panel.
  • the invention proposes a method for producing a decorative panel comprising the application of a film to a carrier, comprising the process steps: a) providing a carrier to be provided with the film, b) providing a film, and c) applying the film to at least one Partial region of the carrier, wherein d) the film is electrostatically charged before it is applied to the carrier, e) the carrier is electrostatically charged before the film is applied to the carrier, and wherein f) the electrostatic charging of the carrier and the film is carried out in such a way that the film and the carrier are oppositely electrostatically charged, g) the introduction of locking means at the edge of the carrier, and f) the application of a decoration to the carrier before the film is applied on the carrier or applying a decoration to the film.
  • a method of this type can enable an improved application of a film to a carrier in the manufacturing process of a decorative panel.
  • the present method is used in particular to apply a film to a carrier.
  • Such a method is also referred to as lamination and can in principle be used in a wide variety of fields of application. However, it can be particularly advantageous if the method described is used in the context of the production of a decorative panel.
  • the procedure consists of the following steps.
  • a carrier which is to be provided with the film or to which the film is to be applied.
  • the type of carrier is not restricted in principle, insofar as the carrier can serve as a base or substrate for the film.
  • a carrier can in principle be understood to mean any structure which serves as a substrate for a film to be laminated on.
  • the carrier can be a carrier suitable for this purpose.
  • a carrier can then be understood in particular as a layer serving as a core or as a base layer in a finished panel, which layer can in particular comprise a natural material such as a wood material, a fiber material or a material comprising a plastic.
  • the carrier can give or give a panel a suitable stability this contribute.
  • the carrier can in particular be a web-like carrier or a plate-shaped carrier.
  • such a carrier can be made of plastic, wherein such a carrier can be made of pure plastic or a plastic material.
  • a plastic material should be a material which, in addition to the pure plastic, can also have other components, in particular fillers, such as mineral or inorganic components.
  • the method according to method step b) comprises providing a film which is to be applied to the carrier.
  • the design of the film is not fundamentally restricted and in particular depends on the later use of the film or the composite of film and carrier.
  • the film can preferably be formed from a plastic, preferably a thermoplastic plastic.
  • the film can be provided by means of a feed device, the film being able to be guided to the carrier and onto its surface using rollers, for example.
  • the film is applied to at least a partial area of the carrier.
  • the entire carrier for example an entire surface of the carrier, can be provided with the film, or the carrier can only be partially provided with the film.
  • This can be implemented, for example, by guiding the film to the carrier as described above and then, for example by means of a roller, using a temperature increased to room temperature (22 ° C) and pressure increased to ambient pressure (lbar) on the carrier is pressed.
  • This process step can also be described as lamination and can basically be carried out in a selectable form.
  • wet lamination or dry lamination should be included within the scope of the invention, in which the lamination by means of a wet or dry laminating agent.
  • a lacquer layer which serves as a liquid laminating agent, can be provided on the carrier, for example on a decoration applied to the carrier. In principle, however, a dry laminating agent is also possible.
  • thermal lamination is included, in which the lamination is carried out at an elevated temperature and with an elevated pressure, but in particular without a lamination agent.
  • the parameters to be selected such as temperature and pressure, can be selected in an understandable manner by the person skilled in the art based on the materials of the carrier and the film.
  • Thermal lamination parameters depend on the material. Basically, the thermal lamination parameters with regard to the material of film and carrier for thermoplastic materials are to be selected in the range greater than the Vicat softening point and lower than the melting point (for (partially) crystalline polymers), and above the Tg, for example for PET. When the thermal parameters have been optimized, very little pressure is required. This is particularly the case when the carrier and film are well matched to one another. Exemplary values here include, for example, a temperature of 140 to 155 ° C. and a pressure of 1 to 10 bar for polypropylene, or a temperature of 90 to 110 ° C. and a pressure of 1 to 10 bar for PETG (glycol-modified PET) .
  • an adhesive and / or connection layer or hotmelt should always be used as a laminating agent.
  • Coextruded thermoplastic functional layers that are firmly connected to the carrier or film during production are also conceivable as a connecting layer, such as EVA (ethylene-vinyl acetate copolymer) or a grafted MAH (maleic anhydride-grafted polymer).
  • EVA ethylene-vinyl acetate copolymer
  • a grafted MAH maleic anhydride-grafted polymer
  • the film can be firmly fixed on the carrier. If necessary, an aftertreatment, such as drying or curing of the laminating agent or also of the film, can take place if this is necessary.
  • step d) the film is electrostatically charged before application to the carrier and that according to method step e) the carrier is electrostatically charged before the film is applied to the carrier.
  • electrostatic charging can take place, as is known from the prior art in other areas and is described in detail later.
  • the electrostatic charging of the carrier and the film is carried out in such a way that the film and the carrier are electrostatically charged in opposite directions.
  • the carrier can be negatively charged and the film can be positively charged, or conversely, the carrier can be positively charged and the film can be negatively charged.
  • This process step can allow an electrostatic attraction to exist between the carrier and the film. This allows a particularly intimate presence or if the carrier is provided with the film over a large area.
  • the close contact and further adhesion of the film to the carrier can thus enable air inclusions to be reliably prevented or at least significantly reduced compared to the methods from the prior art. Furthermore, by preventing or reducing air inclusions, the formation of bubble formations, for example in the form of microbubble formations, can also be prevented or at least significantly reduced. This allows a particularly high quality of the surface, so that rejects can be reduced or rejects based on blistering can be reduced or even completely prevented. In addition, long-term stability can be improved in this way. Because through the intimate adhesion of the film to the carrier before lamination, caused by the electrostatic charges on the carrier and the film, the lamination can also enable the film to adhere particularly closely to the carrier. This can significantly reduce the risk of the film becoming detached from the carrier later. This is because if the film and carrier are loaded at the same level, the risk of repulsion cannot be ruled out even after lamination. However, this can now be prevented according to the invention.
  • Electrostatic charging can preferably take place in such a way that the film is positively charged and that the carrier is negatively charged. It has been shown that the processing of film and carrier with such a charge is possible without any problems.
  • the invention can in principle according but particularly effectively reducing the amount of coating applied to be about allows as laminating at a wet lamination in this embodiment, wherein for example, a reduction can be up to 40g / m 2, for example up to 30g / m 2 or even less possible .
  • a reduction of the Cal other pressure are made possible, which can enable a reduction in wear.
  • the film is charged to a range from> 50V to ⁇ 150V, preferably> 80V to ⁇ 120V, approximately 100V.
  • the carrier is charged to a range from -750V to -150V, preferably -600V to -400V, approximately -500V.
  • Such charge values can be implemented without any problems, even using easily available means for electrostatic charging.
  • such an opposing charge can particularly effectively enable the film to adhere intimately to the plate, even over a large area, and thereby permit the further handling and transport of the components without significantly negatively influencing these steps.
  • At least one of the carrier and the film is electrostatically discharged before the electrostatic charging.
  • the advantages described above can take place in a particularly safe and defined manner. This is because by electrostatic charging after electrostatic discharging, it can be achieved that a particularly defined and homogeneous electrostatic charge is made possible in a precisely defined area, since local charge peaks can be prevented.
  • a discharge can be carried out in a range from greater than 0 kV to less than or equal to 20 kV.
  • the film and the carrier are particularly preferably discharged to a charge value of 0 prior to electrostatic charging.
  • a device for applying electrostatic charges for carrying out method step d) or e) has at least one of a strip, roller, Brush or lip and an ion beam device.
  • a device for discharging electrostatic charges has at least one of a bar, roller, brush or lip formed at least partially from an electrically conductive material and an ion beam device.
  • a device for supplying or discharging electrostatic charges or for discharging electrostatic charges can be designed as a bar which makes electrically conductive contact with the carrier and / or the film and which is preferably essentially parallel to a surface of the film and / or the carrier having running and transverse to the direction of travel of the film or the carrier aligned arrangement.
  • Essentially parallel can in particular mean a deviation or tolerance of ⁇ 20%, in particular ⁇ 10%, for example ⁇ 1% of the distance between the surface of the strip and the surface of the film or the carrier.
  • the bar can be positioned above and / or below the surface to be loaded. Such a configuration also allows large areas to be loaded and unloaded homogeneously and in a defined manner.
  • the device for dissipating electrostatic charges and / or applying electrostatic charges has at least one roller, brush or lip made of a conductive material, which makes electrically conductive contact with the carrier and / or the film.
  • the corresponding device for diverting electrical charges is connected to an electrical ground potential.
  • the electrical ground potential can be provided, for example, by grounding.
  • the device for supplying electrical charges can be connected to a charge source.
  • the strip, roller, brush or lip is preferably formed from a material with a conductivity> 1 * 10 3 Sm 1 , at least in the contact area with the lacquer-containing top layer.
  • the device for loading and / or unloading has an ionization device, by means of which an ionized air jet over the
  • Such a device can also be referred to as an ion beam device. It has been shown that exposure to ionized air is suitable for further reducing or increasing the occurrence of electrostatic charging on the carrier.
  • the carrier is formed from a plastic.
  • the carrier can have a material comprising a plastic and, if appropriate, further components.
  • Plastics that can be used in the production of corresponding panels or the carrier are, for example, thermoplastics such as polyvinyl chloride, polyol efine
  • PE polyethylene
  • PP polypropylene
  • PA polyamides
  • PU polyurethanes
  • PS polystyrene
  • ABS acrylonitrile-butadiene-styrene
  • PMMA polymethyl methacrylate
  • PC polycarbonate
  • PET polyethylene terephthalate
  • PEEK Polyetheretherketone
  • the plastics can contain conventional fillers, for example calcium carbonate (chalk), aluminum oxide, silica gel, quartz flour, wood flour, plaster of paris. They can also be colored in a known manner.
  • the carrier can preferably have talc as filler material, for example in an amount, based on the total material of the carrier, of> 30% by weight to ⁇ 70% by weight, in particular from> 40% by weight to ⁇ 60% by weight.
  • the carrier has a multilaminar structure, that is to say of a large number of foils.
  • the foils can be identical to or different from the foil to be laminated.
  • plastic carriers are preferred for many applications in particular in the case of decorative panels and can furthermore be electrostatically charged and discharged without problems, so that the method can be carried out without problems, particularly in this embodiment.
  • the film it can be preferred that it is made of plastic, for example consists of it or also has further components. More precisely, the film can have an acrylate-based plastic composition, in particular a polyurethane-modified acrylate plastic composition, the film having the plastic composition in an at least partially, for example completely, hardened form so that it can be transported for lamination and can be treated accordingly. Any final curing of the film, which may be necessary, can optionally take place in a further step following the lamination. This can be done, for example, by high-energy and short-wave UV radiation and, in addition to the free-radical polymerization of the acrylate groups, leads to additional crosslinking of the monomers. This increases the surface hardness considerably.
  • the film is flexible overall and at the same time has particularly good protective properties, such as stability, scratch resistance, heat resistance, water resistance and the like, for a wide variety of applications, for example as a protective layer of a decorative panel.
  • the plastic composition of the film can preferably be a dipropylene glycol diacrylate, preferably in an amount of> 0 to ⁇ 15% by weight based on the plastic composition, and a reaction product of pentaerythritol, epichlorohydrin and acrylic acid, preferably in an amount of> 2 to ⁇ 15% by weight. -% based on the plastic composition.
  • the film can also be constructed from other, in particular thermoplastic, plastics, such as from polyethylene terephthalate (PET).
  • the application of the film to the carrier is carried out as thermal lamination.
  • This configuration can be particularly advantageous since an additional laminating means can be dispensed with.
  • the method can be implemented easily with regard to the periphery and can also be possible in a cost-effective manner.
  • a treatment at elevated temperature and under elevated pressure can be implemented without any problems, particularly in the case of plastic films, for example as described above.
  • the above-described electrostatic charging of the film and the carrier can also enable a solid and long-term stable connection between the carrier and the film, despite the lack of a laminating agent.
  • the method according to the invention for producing a decorative panel comprises the further method steps: g) introducing locking means on the edges of the carrier; and h) applying a decoration to the carrier before applying the film or applying a decoration to the film.
  • a described lamination of the film is used to form a decorative panel.
  • the carrier can for example be a plastic carrier and the film can be a plastic film as described above.
  • locking means are provided on the edges of the carrier, for example circumferentially. This can be achieved, for example, by machining the carrier edges, as is fundamentally known from the prior art. This means that a large number of panels can also be used in a well-known manner Way, a stable bond can be created as a floor covering or ceiling covering or wall covering.
  • the film can be provided at different positions in the panel structure.
  • the film can serve as a decorative background, so that the film can be laminated directly onto the carrier material or a further layer of the carrier and the film can then be provided with a decor imitating, in particular, a decorative template, for example by means of a digital printing process.
  • the film can already be printed before it is applied to the carrier and thus serve as a decorative film.
  • the film can be provided with a decoration, in particular printed, before or after being applied to the carrier.
  • method step h) comprises printing the carrier before the film is applied to the carrier and / or method step h) comprises printing the film before or after the film is applied to the carrier.
  • method step h) can thus include printing on the carrier before the film is applied.
  • the carrier can in turn be printed using a digital printing process.
  • the film can serve as a protective layer and cover the decor at the top in order to protect the decor and carrier from external influences.
  • the film serves as a wear base film and is provided with a haptic.
  • wear or cover layers are usually applied above the decorative layer.
  • a surface structure imitating a decorative template is introduced, so that the surface of the decorative panel has a haptically perceptible structure whose shape and pattern are adapted to the applied decor, so as to be as faithful as possible to the original natural material also with regard to the feel.
  • a further layer is applied to the film, which is provided with a structure.
  • the film is provided with a structured lacquer layer or with a lacquer-containing top layer, that is to say with a lacquer layer which is structured and hardened.
  • the latter can be done, for example, by means of UV radiation.
  • a final curing of the film can also take place during curing, for example final curing, of the lacquer in order to fix the structure.
  • the lacquer can be structured, for example, by a press or by printing a displacement ink, the lacquer layer preferably being partially cured before the structure is introduced.
  • a further film can be laminated on, in particular according to the method described above, which is then provided with a structure.
  • the film itself is provided with a structure.
  • the laminated film is provided with a structure after it has been applied to the carrier or the film to be laminated is provided with a structure, for example by means of embossing means, before application to the carrier.
  • the film and / or the lacquer-containing top layer comprises hard materials, preferably in an amount between> 5% by weight and ⁇ 40% by weight, the hard materials preferably having an average grain diameter between 10 gm and 250 gm.
  • hard materials include titanium nitride, titanium carbide, silicon nitride, silicon carbide, boron carbide, tungsten carbide, tantalum carbide, aluminum oxide (corundum), zirconium oxide, zirconium nitride, or mixtures thereof.
  • FIG. 1 shows a schematic representation of an arrangement for carrying out a method according to the invention.
  • FIG. 1 shows an arrangement 10 by means of which a film 12 can be applied to a carrier 14.
  • a feed device 16 is shown, by means of which the film 12 can be provided.
  • the feed device 16 comprises, for example, a deflection roller 18.
  • a transport system 20 is also shown on which a plurality of plate-shaped carriers 14 can be conveyed.
  • the transport system 20 comprises circumferential belts 24, guided by rollers 22, on which the carriers 14 rest.
  • calender rolls 26, 28, between which a roll gap 30 can be formed are also shown.
  • the carrier 14 runs on the belts 24 into the nip 30 and the film 12 is guided through the calender roll 26 into the nip 30 on the carrier 14.
  • the carrier 14 and the film 12 run into the roller spar 30 from the right side to the left.
  • the film 12 can be applied to the carrier 14 will.
  • the calender rolls 26, 28 or at least the calender roll 26 guiding the film 12 can optionally be heated and the calender rolls 26, 28 can exert a contact pressure of the film 12 on the carrier 14.
  • the film 12 can be applied to the carrier 14 by means of thermal lamination, for example.
  • the carrier 14 can also be heated and that freely selectable heating means can be used for heating the carrier 14 and film 12.
  • the film 12 is firmly connected to the carrier 14 in the case of thermal lamination.
  • the radiation unit 36 which emits UV radiation, for example.
  • the film 12 which is still only in the adhesive bed in front of the radiation unit 36, can firmly adhere to the carrier 12 after the radiation unit 36.
  • the radiation unit 36 can be arranged in a region of approximately 200 mm after the roller gap 30.
  • locking means can be introduced into the edges of the carrier 14 before or after the roller gap 30, for example if the method is to be used in the context of the production of a decorative panel.
  • a decoration can also be applied to the carrier 14, which can also take place before or after the roller gap 30.
  • a device 32 for applying electrostatic charges to the film 12 is also provided, and a device 34 for applying electrostatic charges to the carrier 14 is also provided.
  • the devices 32, 34 are each configured as a strip, for example, which preferably has an arrangement that runs essentially parallel to a surface of the film 12 or of the carrier 14 and is oriented transversely to the direction of travel of the film 12 or of the carrier 14.
  • the film 12 makes it possible for the film 12 to be electrostatically charged before it is applied to the carrier 14, and for the carrier 14 to be electrostatically charged before the film 12 is applied to the carrier 14. More precisely, the electrostatic charging of the carrier 14 and the film 12 is to be carried out in such a way that the film 12 and the carrier 14 are electrostatically charged in opposite directions.
  • the film 12 is positively charged and that the carrier 14 is negatively charged, the film 12 preferably being charged to a range from> 50V to ⁇ 150V and the carrier 14 preferably being charged in an area from> -750V to ⁇ -150V.
  • At least one of the carrier 14 and the film 12 is electrostatically discharged before the electrostatic charging.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Thermal Sciences (AREA)
  • Laminated Bodies (AREA)

Abstract

La présente invention concerne un procédé de fabrication d'un panneau décoratif comprenant l'application d'un film (12) sur un substrat (14), comportant les étapes de procédé suivantes : a) la fourniture d'un substrat (14) qui doit être pourvu du film (12), b) la fourniture d'un film (12), et c) l'application du film (12) sur au moins une sous-région du substrat (14), d) le film (12) étant chargé de manière électrostatique avant d'être appliqué sur le substrat (14), e) le substrat (14) étant chargé de manière électrostatique avant l'application du film (12) sur le substrat (14), f) la charge électrostatique du substrat (14) et du film (12) étant réalisée de telle sorte que le film (12) et le substrat (14) soient chargés électrostatiques de manière opposée, g) l'introduction de moyens de verrouillage sur les bords du substrat (14), et h) l'application d'une décoration sur le substrat (14) avant l'application du film (12) sur le substrat (14), ou l'application d'une décoration sur le film (12).
EP21709743.5A 2020-03-20 2021-03-10 Procédé de production d'un panneau décoratif comprenant l'application d'un film sur un substrat au moyen d'une charge électrostatique Pending EP4121301A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP20164611.4A EP3882040A1 (fr) 2020-03-20 2020-03-20 Procédé d'application d'une feuille à un support au moyen d'une charge électrostatique
PCT/EP2021/056103 WO2021185656A1 (fr) 2020-03-20 2021-03-10 Procédé de production d'un panneau décoratif comprenant l'application d'un film sur un substrat au moyen d'une charge électrostatique

Publications (1)

Publication Number Publication Date
EP4121301A1 true EP4121301A1 (fr) 2023-01-25

Family

ID=69941271

Family Applications (2)

Application Number Title Priority Date Filing Date
EP20164611.4A Pending EP3882040A1 (fr) 2020-03-20 2020-03-20 Procédé d'application d'une feuille à un support au moyen d'une charge électrostatique
EP21709743.5A Pending EP4121301A1 (fr) 2020-03-20 2021-03-10 Procédé de production d'un panneau décoratif comprenant l'application d'un film sur un substrat au moyen d'une charge électrostatique

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP20164611.4A Pending EP3882040A1 (fr) 2020-03-20 2020-03-20 Procédé d'application d'une feuille à un support au moyen d'une charge électrostatique

Country Status (8)

Country Link
US (1) US20230347684A1 (fr)
EP (2) EP3882040A1 (fr)
KR (1) KR20220151682A (fr)
CN (1) CN115315358A (fr)
BR (1) BR112022016154A2 (fr)
CA (1) CA3174470A1 (fr)
MX (1) MX2022011661A (fr)
WO (1) WO2021185656A1 (fr)

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CN208697654U (zh) * 2018-07-09 2019-04-05 天津涵霖科技发展有限公司 静电式贴面板热压装置

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CN115315358A (zh) 2022-11-08
EP3882040A1 (fr) 2021-09-22
CA3174470A1 (fr) 2021-09-23
BR112022016154A2 (pt) 2022-10-04
MX2022011661A (es) 2022-10-27
KR20220151682A (ko) 2022-11-15
US20230347684A1 (en) 2023-11-02

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