EP3980277A1 - Method for producing a decorative panel - Google Patents

Method for producing a decorative panel

Info

Publication number
EP3980277A1
EP3980277A1 EP20728511.5A EP20728511A EP3980277A1 EP 3980277 A1 EP3980277 A1 EP 3980277A1 EP 20728511 A EP20728511 A EP 20728511A EP 3980277 A1 EP3980277 A1 EP 3980277A1
Authority
EP
European Patent Office
Prior art keywords
metal
support
decorative panel
edge
feel
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.)
Withdrawn
Application number
EP20728511.5A
Other languages
German (de)
French (fr)
Inventor
Benoît Kolheb
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.)
Schott VTF SAS
Original Assignee
Schott VTF SAS
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 Schott VTF SAS filed Critical Schott VTF SAS
Priority to DE20728511.5T priority Critical patent/DE20728511T1/en
Publication of EP3980277A1 publication Critical patent/EP3980277A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B44DECORATIVE ARTS
    • B44CPRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C1/00Processes, not specifically provided for elsewhere, for producing decorative surface effects
    • B44C1/16Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like
    • B44C1/165Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like for decalcomanias; sheet material therefor
    • B44C1/17Dry transfer
    • B44C1/1704Decalcomanias provided with a particular decorative layer, e.g. specially adapted to allow the formation of a metallic or dyestuff layer on a substrate unsuitable for direct deposition
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20Bonding
    • B23K26/32Bonding taking account of the properties of the material involved
    • B23K26/322Bonding taking account of the properties of the material involved involving coated metal parts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B44DECORATIVE ARTS
    • B44CPRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C1/00Processes, not specifically provided for elsewhere, for producing decorative surface effects
    • B44C1/10Applying flat materials, e.g. leaflets, pieces of fabrics
    • B44C1/14Metallic leaves or foils, e.g. gold leaf
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B44DECORATIVE ARTS
    • B44CPRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C5/00Processes for producing special ornamental bodies
    • B44C5/04Ornamental plaques, e.g. decorative panels, decorative veneers
    • B44C5/0407Ornamental plaques, e.g. decorative panels, decorative veneers containing glass elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B44DECORATIVE ARTS
    • B44CPRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C5/00Processes for producing special ornamental bodies
    • B44C5/04Ornamental plaques, e.g. decorative panels, decorative veneers
    • B44C5/0415Ornamental plaques, e.g. decorative panels, decorative veneers containing metallic elements
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/34Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
    • C03C17/36Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/34Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
    • C03C17/36Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
    • C03C17/3602Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/34Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
    • C03C17/36Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
    • C03C17/3602Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
    • C03C17/3684Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer the multilayer coating being used for decoration purposes
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/34Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
    • C03C17/36Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
    • C03C17/40Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal all coatings being metal coatings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00Materials to be soldered, welded or cut
    • B23K2103/50Inorganic material, e.g. metals, not provided for in B23K2103/02 – B23K2103/26
    • B23K2103/54Glass
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C2217/00Coatings on glass
    • C03C2217/70Properties of coatings
    • C03C2217/72Decorative coatings
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C2218/00Methods for coating glass
    • C03C2218/10Deposition methods
    • C03C2218/17Deposition methods from a solid phase

Definitions

  • the present invention relates to a method of manufacturing a decorative panel, in particular a trim panel, a household appliance, a heating device, a room in a house or furniture, comprising a glass support which is metallized.
  • the invention also relates to such a panel.
  • Metal panels are used in many technical fields, as so-called “decorative” panels, as component parts of a wall or a wall, or as a wall covering.
  • decorative panels which are called “conventional” are difficult to handle and are expensive to manufacture, because they are solid panels, made of a block of metal, therefore requiring a large amount of metal, this which considerably reduces their use.
  • Such panels are generally obtained by covering the surface of the glass with a layer of primer, then by projecting a layer of metal particles, on which is applied a layer of a colorless varnish.
  • a layer of primer for covering the surface of the glass with a layer of primer.
  • the decorative metal panels which were often used to dress household appliances, are also replaced by glass panels, which have the advantage of being lighter, less expensive , and to be able to wear very varied decorative patterns, inscriptions, signs, logos or images.
  • They generally include a glass support, covered with one or more colored enamels, or paints, reproducing the visual appearance of a metal.
  • enamel panels are obtained by the use of masks or stencils, according to a succession of screen printing operations, or by digital printing.
  • Even if such enamel decorative panels have an improved final aesthetic rendering, they are enamelled panels, which, therefore, do not have the actual visual rendering, or even the real feel, of a machined metal.
  • document EP2573204 describes a method of obtaining a cooking plate, comprising a support, covered with a metal layer deposited under vacuum in the vapor phase, the support and the layer metal being then subjected to a heat treatment.
  • LASER ablation then removes the metal layer from the support in certain places to electrically isolate certain regions of the metal layer, and to identify functional areas there.
  • the metal layer is then covered with a dielectric protective layer.
  • the field of electronics the deposition of a thin film, of a uniform and regular thickness, of metal is generally carried out by vacuum evaporation techniques, which are not easy because they require a high vacuum, precise control of the atmosphere in which the deposit takes place, and require expensive and imposing equipment.
  • the indirect method consists in irradiating, using a LASER, a metallic material arranged under a transparent support to be covered facing the material, the LASER beam passing through the support to vaporize the material and transfer it on the support, as described for example in document WO2010104651.
  • the direct method consists in placing the material to be transferred above the support, between the support and the LASER beam, the latter striking the material, on the surface opposite to that facing the support, to project it onto the support, the material being in direct contact with the support, as described in document EP2064748, or being placed at a distance from the support, as described in document WO2015189432.
  • the indirect transfer method and especially the direct transfer method, have the drawback of obtaining a metal layer which has thickness irregularities; in fact, if the LASER beam operates discontinuously, the deposition takes place in the form of points, or else in the form of lines if the LASER beam operates continuously, with a diameter or respectively a width, corresponding to the size of the LASER beam. This generates pixelation effects, part of the support, between two points or two deposit lines, not being covered with metal, or roughness, due to excess material if the LASER makes deposits in overlapping passes. . Due to these deposit irregularities, the metallic layer does not have the visual rendering and / or the feel of a plate made of metal, in particular a machined metal.
  • the present invention aims to provide a metallized panel, and such a decorative panel, which does not have the drawbacks of the state of the art.
  • the present invention aims to provide an alternative to existing state of the art solutions.
  • the present invention aims to provide a manufacturing method making it possible to obtain a decorative glass panel, having an improved visual rendering and / or feel, close to the visual rendering and / or the feel of a machined metal.
  • the present invention also aims to provide a method of manufacturing a decorative panel, which is quick and easy to implement. Summary of the invention
  • the present invention relates to a method of making a panel according to the invention, comprising the steps of taking a glass support, comprising at least a first surface, preferably also a second surface, opposite to the first surface and possibly also at least a first edge, preferably several edges, to take one or more solid metal films, made of one or more metals or metal alloys, to take a LASER source capable of generating a pulsed LASER beam, of perform a direct metal deposition on at least the first surface, by placing the metal film (s) opposite, at a distance from or in contact with the at least first surface, between the glass support and the LASER source, and by applying the beam LASER on the metal film (s) in order to transfer the metal (s) or metal alloy (s) directly to the at least first surface, in a determined pattern, in order to form a coating comprising a metallic layer covering all or part of the at least first surface the metallic layer comprising an upper surface, and to surface the upper surface in order to modify its surface state, to give it the visual appearance and
  • the method according to the invention comprises at least one, or any suitable combination, of the following characteristics:
  • the surfacing step comprises a step of polishing, brushing, embossing, embossing, or a combination of these,
  • the step of depositing the metal (s) or metal alloy (s) of the metal film (s), directly on the at least first surface of the glass support is repeated several times, in order to apply, on the at least first surface, a multitude of layers made of a particular metal or metal alloy, or of different metals or different metal alloys, the layers being able to overlap, overlap or be adjacent, and have patterns that can be identical or different between the layers,
  • the step of depositing the metal (s) or metal alloy (s) of the metal film (s) is repeated in order to form a metal layer covering all or part of the second surface and / or of several edges of the glass support, the metallic film (s) are deposited on a surface of a transfer support, transparent to the LASER beam, the surface of the transfer support being placed facing the at least first surface and / or at least first edge of the support to be covered,
  • the method also includes a preliminary step of covering all or part of the glass support with enamel or enamels,
  • the method further comprises a pretreatment step, carried out before the step of transferring the metal (s) or metal alloys, and consisting in the elimination of the surface contaminants present on at least the first and / or the second surface and / or on the edge (s) of the glass support, or in a surface structuring, in at least two dimensions, preferably in three dimensions, of the surface (s) and / or of the edge (s) of the glass support,
  • the decorative panel is a panel for covering a household appliance, a heating device, a room in a house, or for decorating furniture.
  • the present invention also relates to a decorative panel obtained by the method according to the invention.
  • the decorative panel comprising a glass support comprising at least a first surface, preferably also a second surface, opposite the first surface, and possibly also at least a first edge, preferably several edges, one or more two surfaces and / or one or more edges being covered, totally or partially, with a coating comprising at least one metallic layer comprising one or more metals or metal alloys deposited by direct transfer using a LASER beam, and forming one or more decorative patterns the metallic layer having an upper surface, having been surfaced in order to obtain the visual appearance and / or the feel of a metal which has been machined.
  • the decorative panel according to the invention comprises at least one, or any suitable combination, of the following characteristics:
  • the visual appearance and / or the feel of a machined metal is chosen from the visual appearance and / or the feel of a polished metal, a brushed metal, an embossed metal or an embossed metal , or a combination of these, - the metal layer comprises a multitude of layers of a metal or a determined metal alloy, or of different metals and / or different metal alloys, the thin layers being superimposed, adjacent or overlapping with respect to each other. other,
  • the upper surface of the metal layer is covered with a protective varnish that does not modify the visual appearance and / or the feel of said upper surface.
  • the present invention also relates to the use of the decorative panel according to the invention to decorate a household appliance, to decorate a room of a dwelling, or to decorate furniture.
  • Figure 1 is a schematic representation of a side view of a panel according to the invention.
  • Figure 2 is a schematic representation of a first embodiment of the method according to the invention.
  • Figure 3 is a schematic representation of a second embodiment of the method according to the invention.
  • the term "length” is used to describe the largest of the measurements of one side of any geometric shape, for example the large radius of an ellipsoid or of an ellipse, the base or height of a triangle, the length of a trapezoid or rectangle.
  • the term “width” is used to describe the smallest of measurements, for example the small radius of an ellipsoid or ellipse, the base or height of a triangle, the width of a trapezoid or rectangle, and the terms “length” and “width” can be used interchangeably, for example to designate the measure of the radius of a disc, the side of a square.
  • top, bottom, upper, lower, front, “rear”, “vertical” or “horizontal” refer to the horizontal position of the panel according to the invention, and elements implemented according to the method of the invention, as shown in Figures 1 to 3.
  • the method according to the invention implements a step of metallization of a glass support 2, a step of transferring one or more metals or metal alloys, which is called “direct” ( Figures 2 and 3 ), for a deposit, on all of one or more surfaces of the support 2, or a structured deposit of metal, namely on a part of the surface (s) of the support 2, preferably in a decorative pattern which may be or include inscriptions, signs, geometric shapes, logos, images.
  • the method according to the invention comprises the steps of taking, or making, a glass support 2, optionally covered, partially or totally, with one or more layers of enamel or enamels, and of taking, or making one or more films 3, or sheets, metallic, in the solid state.
  • the support 2 is rigid and substantially inflexible. It has a mechanical resistance, to bending and / or torsional stresses, sufficient not to deform under the action of a bending and / or torsional force. It is also at least thermally inert, advantageously also physically and chemically inert to the material (s) with which it is covered or in contact.
  • the support 2 is preferably transparent, or else partially transparent, optically in the visible range, in its thickness and / or its width and / or its length. It can be sandblasted and / or screen printed and / or colored on all or part of these surfaces or of these edges.
  • the support 2 is a transparent soda lime glass or tinted in the mass, optionally with various layers, such as anti-bacterial, anti-reflective, for example of the type known under the Matelux® brand, chrome-plated, low-emissivity, for example of the type known under the name Planibel Clear or Planibel low-E IsoComfort, marketed by the company AGC, or a borosilicate for example known under the brand Borofloat® 33.
  • the glass has a high SiO 2 content, a content advantageously between 69% and 81% by weight and with a light transmission which can range up to 90%.
  • the glass may optionally have previously undergone a heat treatment of the hardening, annealing, tempering or bending type.
  • the support 2 has a shape, thickness and dimensions that are adequate and adapted, or compatible, with the end use of the panel 1, or elements which include such a panel 1.
  • the support 2 is substantially flat. It is preferably a flat glass. It comprises at least a first surface 4, continuous and substantially planar, preferably a second surface 5, continuous and substantially planar, opposite said first surface 4 (FIGS. 1 to 3).
  • the support 2 has a cross section, therefore in the plane formed by the surface 4 or the surface 5, in the XZ plane, of circular, elliptical, polygonal, trapezoidal or else of a quadrilateral shape, advantageously a rhombus, square or rectangular section.
  • the support 2 has a longitudinal section, therefore in the XY plane, and / or a cross section, therefore in the YZ plane, perpendicular to the plane formed by the surface 4 or the surface 5, circular, elliptical or polygonal, trapezoidal or else of a quadrilateral, advantageously a square or rectangular section, of a trapezoid or of a rectangle trapezoid.
  • the support 2 comprises at least a first lateral edge 6, and in the embodiments in which it has a parallelepipedal transverse and / or longitudinal section, for example square (s) or rectangular (s), it comprises a second side edge 7, opposite to the first side edge 6, a front edge 8 and a rear edge 9, opposite to the front edge 8.
  • the first side edge 6 and / or the second side edge 7, the front edge 8 and / or the rear edge 9 is or are chamfer (s).
  • all or part of the surfaces 4, 5 and / or the edges 6, 7, 8, 9 may be covered with one or more layers of enamel or enamels , a deposition taking place before, or after, the direct deposition of the metallic layer 14, the enamel or the enamels being arranged superimposed or adjacent to one another.
  • the coating covering the support 2 then consists of the metallic layer 14 and the layer or layers of enamel or enamels.
  • the support 2 is placed on a support holder 10 on which it is fixed during the metallization process ( Figures 2 and 3).
  • the support holder 10 can be movable in rotation, for example along the Y-Y 'axis, and / or in translation, along the Y-Y 'axis and / or the X-X' axis.
  • the carrier 10 can be coupled to a multi-axis motion control mechanism to move and position the carrier 10 in different orientations and at different angles. Once its position and orientation have been determined, the support holder 10 can be fixed, or mobile, during the process of metallization of the support 2.
  • the metallic film (s) 3 are preferably single-layer and are made of a single metal or a single alloy of metals. However, it is also possible to provide for the use of one or more multilayer films 3 comprising several layers of the same metal or metal alloy or of different layers of different metals or metal alloys.
  • the metal is selected from Aluminum, Copper, iron, stainless steel, Magnesium, Silver, Chromium, Titanium, Zinc, tin and their alloys.
  • the metal film or films 3 have a thickness of between 10 and 300miti.
  • the metallic film (s) 3 may be in the form of one or more continuous ribbons in order to constitute a continuous source of metal to be transferred.
  • the metal film or films 3 can be deposited, by any suitable means, on a transfer support 11, for example a glass support transparent to the beam 12 of a LASER 13, and cover at least one of these surfaces, that intended to face the surface 4, 5 or the edge 6, 7, 8 or 9 of the support 2, to be covered (FIG. 3).
  • a transfer support 11 for example a glass support transparent to the beam 12 of a LASER 13, and cover at least one of these surfaces, that intended to face the surface 4, 5 or the edge 6, 7, 8 or 9 of the support 2, to be covered (FIG. 3).
  • the transfer support 11 is movable in rotation, for example along the Y-Y 'axis, and / or in translation, along the Y-Y' axis and / or the X-X axis '.
  • the transfer medium 11 can be coupled to a multi-axis motion control mechanism to move and position the transfer medium 11 in different orientations and at different angles. Once its position and orientation have been determined, the transfer support 11 can be fixed, or mobile, during the metallization process.
  • the method according to the invention comprises a preliminary step of determining the surface (s) 4, 5, and / or the portion (s) of the surface (s) 4, 5, and / or the surface (s) edges 6, 7, 8, 9, and / or the portion or portions of the edges 6, 7, 8, 9 to decorate. It may be all or part of the surfaces 4, 5 and / or the edges 6, 7, 8, 9 covered or not with one or more layers of enamel or enamels.
  • the method according to the invention comprises a prior step of determining the pattern (s) to be produced, and a step of configuring a control system controlling the movements of the support holder 10 and / or of the support. transfer 11 and / or the LASER source 13.
  • the pattern (s) can be or comprise a uniform, continuous or discontinuous layer, inscriptions, signs, geometric shapes, logos, images, which reproduces or reproduce the appearance surface and / or the feel of a machined metal, for example a polished metal, an embossed metal or a brushed metal, or of a carbon fiber material, or of a natural material, such as for example wood.
  • the method according to the invention comprises a preliminary step of pretreating one or both surfaces 4, 5 and / or one or more edges 6, 7, 8, 9 of the support 2, coated or not with enamel, which consists of removing surface contaminants, or at least two-dimensional surface structuring, preferably three-dimensional, or the creation of surface roughness, on all or part of the surface (s) 4, 5 and / or of the edge (s) 6, 7, 8, 9, intended (s) or not, to be metallized, either by chemical and / or mechanical action.
  • the chemical means can be any acids or mixtures of acids to which the glass support 2 is sensitive, such as for example hydrofluoric acid.
  • the mechanical means may be, or comprise, tools and / or abrasive materials, or LASER ablation, in particular ablation by a femtosecond LASER.
  • the direct transfer step of one or more metals or metal alloys is done by placing the metal film (s) 3, in front of, at a distance, or else in direct contact, with at least one of the surfaces 4 , 5, or portion (s) of the surface 4 or 5, and / or at least one edge 6, 7, 8, 9, or portion (s) of the edge 6, 7, 8, 9 of the support 2 in glass to cover, whether the surfaces 4, 5 and / or the edges 6, 7, 8, 9 are covered, or not, partially or totally, with an enamel or several enamels.
  • the metal film or films 3 are placed between the glass support 2 and the LASER source 13, the back of the metal film (s) 3 located under the LASER source 13, whether or not the metal film (s) 3 are deposited on a transfer support 11, or not.
  • the metal layer 14, thus obtained, has a multitude of deposit points, or lines of deposits, depending on whether the LASER beam 12 is applied respectively discontinuously or continuously, respectively having an equivalent diameter or width. to the diameter of the LASER beam 12, by, respectively, distant or overlapping passes. This results in a pixelation effect and irregularities in the thickness of the metal layer.
  • the method according to the invention further comprises a step of taking one or more masks, opaque to the LASER beam 12, and of placing it or them on the metal film or films 3, or between the latter and the surface 4 or 5 or the edge 6, 7, 8, 9 of the glass support 2 to be covered, in contact or at a distance from the surface 4 or 5 or from the edge 6, 7, 8, 9 to be covered.
  • the step of decorating the support 2, namely the production of the deposition of the metal layer, according to a determined pattern, is carried out using a pulsed LASER beam 12, which is applied at room temperature and under atmospheric pressure, on the back of the metal film (s) 3 in the solid state, to directly transfer the metal (s) or metal alloys of which they are made to all or part of the surface 4, 5 and / or the edge 6 , 7, 8, 9 of the support 2, and / or on all or part of the enamel or enamels covering the surface 4, 5 and / or the edge 6, 7, 8, 9, in order to form a metallic layer 14 , covering, continuously or discontinuously, all or part of the enamel or enamels and / or the surface 4, 5 and / or the edge 6, 7, 8, 9 of the support 2 or reproduces the pattern (s) therein predetermined.
  • a pulsed LASER beam 12 which is applied at room temperature and under atmospheric pressure, on the back of the metal film (s) 3 in the solid state, to directly transfer the metal (s) or metal alloys of which they are made to
  • the peel resistance achieved at 22 ° C using a hammer gauge, is 20 Newtons.
  • the LASER beam 12 has an energy and an adequate speed, which is a function of the distance between the LASER source 13 relative to the film (s) 3 metal (s) and the distance between the metal film or films 3 and the glass support 2. In any event, the LASER source 13 is positioned so that the LASER beam 12 is focused on the back of the metal film or films 3.
  • the LASER beam 12 is generated by a femtosecond LASER, producing pulses whose frequency is between 1 kHz and 2 MHz and whose duration is of the order of a few femtoseconds to a few hundred femtoseconds, and wavelength between 300nm and 10miti.
  • the LASER beam 12 and the glass support 2 or the metal film (s) 3 have a relative movement with respect to each other.
  • the LASER source 13 is mounted to move relative to the glass support 2 or to the support holder 10, if it is present, and / or to the metal film (s) 3 or to the support of transfer 11 if present.
  • it is the glass support 2, or the support holder 10, and / or the metallic film (s) 3, or the transfer support 11, which are mobile, or else all at the same time, or then sequentially. This has the advantage of being able to cover one or more surfaces and / or one or more edges.
  • the pulsed LASER beam 12 is applied continuously or repeatedly, until the determined pattern is achieved, which may consist of covering all or part of at least one or both surfaces 4, 5 and / or at least one edge 6, 7, 8, 9 of the glass support 2, and / or the enamel or enamels which cover them, the number of repetitions being a function of the size of the point of the LASER beam 12 and / or the surface to be coated.
  • the method can comprise the provision of one or more masks, not transparent to the LASER beam 12, and which can be arranged on the metal film (s) 3 or between the metal film (s) 3 and the surface 4, 5 or the edge 6, 7, 8, 9 of the support 2 to be metallized.
  • the surplus of the film or films 3 not adhering to the support 2 is removed by peeling, for example using peeling means, blowing means or the like.
  • the at least first metal layer 14 has a thickness between 10 and 300 miti.
  • the metal transfer step can be repeated several times in order to apply a multitude of homogeneous layers of a particular metal or metal alloy, or of different metals and / or different metal alloys, the different layers possibly being superimposed, overlapping or being adjacent, the total thickness of the layers preferably being between 20 and 300 miti, the patterns possibly being identical or different.
  • lines, signs or words made of one or more metals or metal alloys on a uniform layer of one or more other metals or metal alloys uniformly covering all or part of it. one of the surfaces 4, 5 or of an edge 6, 7, 8, 9 of the support 2 made of glass and / or the enamel or enamels which cover them.
  • the other surface 4 or 5 or the other opposite edge 6, 7, 8, 9, or the other edges 6, 7, 8, 9, may or may be covered or covered with one or more paints, or a or more colored enamels, to enhance the visual appearance of the surface 4 or 5 or of the edge 6, 7, 8, 9 comprising the metallic layer 14, for example by giving the glass support 2 a mirror appearance inside its thickness or from the edge (s) 6, 7, 8, 9 of the support 2.
  • the support 2 can be fixed and the LASER source 13 and the or the metal films 3, possibly the transfer support 11 if present, can be mobile and set in motion, in order to position themselves opposite the second surface 4 or 5 or the second edge 6, 7, 8, 9 to cover; nevertheless, in the embodiment in which the support 2 is deposited on a support holder 10, the latter will be made of a material transparent to the LASER beam 12. However, more easily, the LASER source 13 and the one or more them.
  • metal films 3, possibly the transfer support 11 if it is present, are fixed and it is the support 2, or its support holder 10 if it is present, which is mobile, and rotated, according to the Z-Z 'axis, in order to position the second surface 4 or 5 or the second edge 6, 7, 8, 9 opposite the metal film or films 3.
  • the method according to the invention then comprises a post-treatment step, subsequent to the metal transfer step.
  • This post-processing is a stage of surfacing of the upper surface 15 of the metal layer 14 produced using surfacing means.
  • the surfacing step can be performed after the covering of surfaces 4, 5, of the two edges 6, 7, 8, 9, or after the covering of each surface 4, 5 or each edge 6, 7, 8 , 9.
  • the surfacing step consists in modifying the surface state of the upper surface 15 of the metal layer 14, which has a pixelation effect and / or thickness or surface irregularities, to flatten it and homogenize it, which makes it possible to reduce the effect of pixelation and / or the irregularities, generated by the direct metallic transfer by point of the LASER beam 12.
  • the metallic layer 14 thus has the visual appearance and / or the feel of a metal which has been machined, namely the visual appearance and / or the texture of a metal which has been subjected to shaping tools after casting or molding, and possibly rolling. This may for example be the visual appearance and / or the texture of a polished metal, a brushed metal, an embossed metal and / or an embossed metal.
  • Decorative patterns comprising, or being, inscriptions, signs, logos or images thus have sharper contours, and therefore a less blurry visual appearance, as well as a smoother feel.
  • the surfacing can be chemical, but it is preferably mechanical, which has the advantage of providing visual and / or feel results, closer to or identical to those obtained by metal plate shaping tools.
  • the mechanical surfacing can comprise, or consist, for example in a polishing step, for example using a tool and a polishing material, brushing in order to create fine scratches, for example with a flat abrasive or a brush, embossing, or embossing in order for example to impart an appearance and / or a feel of the carbon fiber type, or a combination thereof.
  • the surfacing does not include the use of a LASER beam, and in particular does not include LASER ablation.
  • the method according to the invention can further comprise a step of covering the upper surface 15 of the metal layer 14 after the step. surfacing, and optionally also the enamel layer (s) or enamels if they are present, with a protective varnish, preferably polymeric, advantageously transparent, not modifying the visual appearance and / or the feel of the upper surface 15 of the metal layer 14.
  • the decorative panel 1 according to the invention is preferably obtained according to the method according to the invention described above.
  • the decorative panel 1 comprises a glass support 2, as described above, comprising at least a first surface 4, continuous and substantially planar, preferably also a second surface 5, continuous and substantially planar, opposite at the first surface 4, preferably also at least a first lateral edge 6, and possibly a second lateral edge 7, opposite to the first lateral edge 6, a front edge 8 and a rear edge 9, opposite to the front edge 8.
  • One or both surfaces 4, 5 and / or one or more edges 6, 7, 8, 9, are covered (s) or covered (s), totally or partially, with a coating comprising at least a layer 14 made of one or more metals or metal alloys, and the deposition of which is obtained by direct transfer of the metal (s) or metal alloy (s) to the support, using a LASER beam 12, preferably pulsed, applied directly to one or more films 3 or metal sheets in the solid state, at room temperature and under atmospheric pressure.
  • the metallic layer 14 obtained adheres directly to the surface (s) 4, 5 and / or to the edge (s) 6, 7, 8, 9, on which or which it is applied without the use of a sub- bond layer, glue, adhesive, or any polymer.
  • the decorative panel 1 comprises all or part of one or both surfaces 4, 5 and / or one or more of the edges 6, 7, 8, 9 covered (e) with an enamel or more enamels, arranged superimposed or adjacent to one another, the metallic layer 14 possibly covering, or not, totally or partially, the enamel or the enamels.
  • the coating of the support 2 comprises the metallic layer 14 and the enamel or enamel layer (s).
  • the metal layer 14 has a thickness of between 10 and 300 miti, and can comprise a multitude of homogeneous thin layers of a metal or of a specific metal alloy, or of different metals and / or different metal alloys, which are superimposed, adjacent or overlapping with respect to each other.
  • the metal layer 14 forms, on the surface (s) 4, 5 and / or the edge (s) 6, 7, 8, 9, of the glass support 2, one or more patterns, superimposed, adjacent, or which are overlap, the motifs being inscriptions, signs, logos or images.
  • the metal layer 14 has an upper surface 15, which, after the direct deposition of a metal or one or more metal alloys, exhibited a pixelation effect and / or thickness irregularities, which was surfaced, in order to obtain the visual and / or tactile appearance of a metal which has been machined, which appears to have been obtained by metal plate shaping tools.
  • it is a look and / or feel of polished metal, brushed metal, embossed metal or embossed metal, or a combination thereof, preferably obtained by mechanical surfacing, for example polishing, brushing, embossing or embossing.
  • the decorative pattern or patterns formed by the metallic layer 14 is sharper and has a smoother feel.
  • the decorative panel 1 according to the invention further comprises a protective varnish covering the upper surface 15 of the metallic layer 14, advantageously not modifying the visual appearance and / or the feel of the upper surface 15 of the metal layer 14.
  • the coating of the support 2 comprises the metallic layer 14, the protective varnish layer, and optionally also the enamel or enamel layer (s) if they are present.
  • the decorative panel 1 according to the invention may comprise a metal layer 14 on the two surfaces 4 and 5 and / or one or more edges 6, 7, 8, 9 of the glass support 2, or else one of the surfaces 4 or 5 or one of the edges 6, 7, 8, 9, is covered or covered with the metallic layer 14 and the other surface 4 or 5 or the opposite or adjacent edge 6, 7, 8, 9, is covered or covered with one or more paints or one or more colored enamels enhancing the visual appearance of the first surface 4 or 5 comprising the metallic layer 14.
  • the decorative panel 1 according to the invention is used to decorate a household appliance, such as for example an oven or a refrigerator, a heating device, for example a radiator or a towel warmer, or to decorate a room in a house, such as a kitchen or a bathroom, or to decorate furniture.

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Abstract

The present invention relates to a method for producing a decorative panel (1), comprising the steps of taking a substrate (2) made of glass, comprising at least one first surface (4 or 5), preferably also a second surface (4 or 5), opposite said first surface (4 or 5), and optionally also at least one first edge (6, 7, 8, 9); taking one or more solid metal films (3), made of one or more metals or metal alloys; taking a laser source (13) capable of generating a pulsed laser beam (12); directly plating at least said first surface (4 or 5), by arranging said metal film or films (3) facing, at a distance or in contact, said at least first surface (3 or 4) between the substrate (2) and the laser source (13), and by applying said laser beam (12) to the metal film(s) (3) in order to transfer the metal(s) or metal alloy(s) directly onto the at least first surface (4 or 5), according to a given pattern, in order to form a coating comprising a metal layer (14) covering all or part of the at least first surface (4 or 5), the metal layer (14) comprising an upper surface (15); and surfacing said upper surface (15) of the metal coating (14) in order to modify the surface condition thereof, so as to give it the visual aspect and/or the feel of a metal that has been machined. The invention also relates to a decorative panel (1) having a visual aspect and/or the feel of a metal that has been machined.

Description

METHODE DE REALISATION D’UN PANNEAU DECORATIF METHOD OF MAKING A DECORATIVE PANEL
Objet de l’invention Object of the invention
[0001] La présente invention a trait à une méthode de fabrication d’un panneau décoratif, en particulier d’un panneau d’habillage, d’un appareil électroménager, d’un dispositif de chauffage, d’une pièce d’une habitation ou de meubles, comprenant un support en verre qui est métallisé. L’invention porte également sur un tel panneau. The present invention relates to a method of manufacturing a decorative panel, in particular a trim panel, a household appliance, a heating device, a room in a house or furniture, comprising a glass support which is metallized. The invention also relates to such a panel.
Etat de la technique State of the art
[0002] Les panneaux métalliques sont employés dans de nombreux domaines techniques, comme panneaux dits « décoratifs », en tant qu’éléments constitutifs d’une parois ou d’un mûr, ou bien comme revêtement mural. Toutefois, de tels panneaux, qui sont dits « classiques », sont peu aisés à manipuler et sont onéreux à fabriquer, car il s’agit de panneaux pleins, fait d’un bloc de métal, nécessitant donc une importante quantité de métal, ce qui réduit considérablement leur utilisation. [0002] Metal panels are used in many technical fields, as so-called "decorative" panels, as component parts of a wall or a wall, or as a wall covering. However, such panels, which are called "conventional", are difficult to handle and are expensive to manufacture, because they are solid panels, made of a block of metal, therefore requiring a large amount of metal, this which considerably reduces their use.
[0003] Afin de reproduire l’aspect esthétique des panneaux métalliques, il a été proposé une solution plus économique consistant à recouvrir un support en verre d’un revêtement ayant l’apparence d’un métal. [0003] In order to reproduce the aesthetic appearance of metal panels, a more economical solution has been proposed consisting of covering a glass support with a coating having the appearance of metal.
[0004] De tels panneaux sont généralement obtenus en recouvrant la surface du verre d’une couche de peinture de fond, puis en projetant une couche de particules métalliques, sur laquelle est appliquée une couche d'un vernis incolore. Toutefois, de tels panneaux présentent l’inconvénient d’avoir un rendu esthétique perfectible, les particules métalliques apparaissant distinctivement à travers la couche de vernis. [0004] Such panels are generally obtained by covering the surface of the glass with a layer of primer, then by projecting a layer of metal particles, on which is applied a layer of a colorless varnish. However, such panels have the drawback of having a perfectible aesthetic rendering, the metal particles appearing distinctly through the layer of varnish.
[0005] Dans le domaine particulier des appareils électroménagers, les panneaux décoratifs métalliques, qui étaient souvent utilisés afin d’habiller les appareils électroménagers, sont également remplacés par des panneaux en verre, qui présentent l’avantage d’être plus léger, moins onéreux, et de pouvoir porter des motifs décoratifs très variés, des inscriptions, des signes, logos ou des images. Ils comprennent généralement un support en verre, recouvert d’un ou plusieurs émaux colorés, ou de peintures, reproduisant l’aspect visuel d’un métal. Habituellement, de tels panneaux émaillés sont obtenus par l’emploi de masques ou pochoirs, selon une succession d’opérations de sérigraphie, ou par impression numérique. [0006] Même si de tels panneaux décoratifs émaillés possèdent un rendu esthétique final amélioré, il s’agit de panneaux émaillés, qui, par conséquent, ne possèdent pas le rendu visuel réel, ni même le touché réel, d’un métal usiné. [0005] In the particular field of household appliances, the decorative metal panels, which were often used to dress household appliances, are also replaced by glass panels, which have the advantage of being lighter, less expensive , and to be able to wear very varied decorative patterns, inscriptions, signs, logos or images. They generally include a glass support, covered with one or more colored enamels, or paints, reproducing the visual appearance of a metal. Usually, such enamel panels are obtained by the use of masks or stencils, according to a succession of screen printing operations, or by digital printing. [0006] Even if such enamel decorative panels have an improved final aesthetic rendering, they are enamelled panels, which, therefore, do not have the actual visual rendering, or even the real feel, of a machined metal.
[0007] Toujours dans le domaine particulier des appareils électroménagers, le document EP2573204 décrit une méthode d’obtention d’une plaque de cuisson, comprenant un support, recouvert d’une couche métallique déposée sous vide en phase vapeur, le support et la couche métallique étant ensuite soumis à un traitement thermique. Une ablation LASER supprime ensuite la couche métallique du support à certains endroits pour isoler électriquement certaines régions de la couche métallique, et pour y identifier des zones fonctionnelles. La couche métallique est ensuite recouverte d’une couche de protection diélectrique. Still in the particular field of household appliances, document EP2573204 describes a method of obtaining a cooking plate, comprising a support, covered with a metal layer deposited under vacuum in the vapor phase, the support and the layer metal being then subjected to a heat treatment. LASER ablation then removes the metal layer from the support in certain places to electrically isolate certain regions of the metal layer, and to identify functional areas there. The metal layer is then covered with a dielectric protective layer.
[0008] Outre le fait qu’un tel panneau soit un panneau fonctionnel, il ne possède pas l’aspect esthétique, en particulier les irrégularités de surface, ni le touché, des panneaux décoratifs classiques en métal qui ont été usinés, qui présentent un aspect irrégulier, car les brosses, à grains plus ou moins gros, utilisées pour structurer le métal par frottement, s’usent et ne brossent jamais le métal au même endroit et de la même manière. Le brossage du métal est irrégulier. Un tel résultat est impossible à obtenir avec une ablation LASER, car le faisceau LASER travaille par reproduction de motifs, qui au final crée une régularité de l’aspect. [0008] Besides the fact that such a panel is a functional panel, it does not have the aesthetic appearance, in particular the surface irregularities, nor the feel, of the classic decorative metal panels which have been machined, which have a irregular appearance, because the brushes, more or less coarse grains, used to structure the metal by friction, wear out and never brush the metal in the same place and in the same way. Brushing of metal is uneven. Such a result is impossible to achieve with LASER ablation, because the LASER beam works by reproducing patterns, which ultimately creates a regularity of appearance.
[0009] Dans un domaine technologique éloigné de l’invention, le domaine de l’électronique, le dépôt de couche mince, d’une épaisseur uniforme et régulière, de métal s’effectue généralement par des techniques d’évaporation sous vide, qui sont peu aisées car elles nécessitent un vide poussé, un contrôle précis de l’atmosphère dans laquelle se déroule le dépôt, et nécessitent des équipements onéreux et imposants. In a technological field far removed from the invention, the field of electronics, the deposition of a thin film, of a uniform and regular thickness, of metal is generally carried out by vacuum evaporation techniques, which are not easy because they require a high vacuum, precise control of the atmosphere in which the deposit takes place, and require expensive and imposing equipment.
[0010] Toujours dans le domaine de l’électronique, il a été proposé une métallisation d’un support en silicium ou en verre, par l’emploi d’un LASER, selon une méthode indirecte, ou selon une méthode directe. [0010] Also in the field of electronics, it has been proposed a metallization of a silicon or glass support, by the use of a LASER, by an indirect method, or by a direct method.
[0011] La méthode indirecte consiste à irradier, à l’aide d’un LASER, un matériau métallique disposé sous un support transparent à recouvrir faisant face au matériau, le faisceau LASER traversant le support pour vaporiser le matériau et le transférer sur le support, comme cela est décrit par exemple dans le document WO2010104651. The indirect method consists in irradiating, using a LASER, a metallic material arranged under a transparent support to be covered facing the material, the LASER beam passing through the support to vaporize the material and transfer it on the support, as described for example in document WO2010104651.
[0012] La méthode directe consiste à disposer le matériau à transférer au-dessus du support, entre le support et le faisceau LASER, ce dernier venant frapper le matériau, sur la surface opposée à celle faisant face au support, pour le projeter sur le support, le matériau étant en contact direct avec le support, comme décrit dans le document EP2064748, ou étant disposé à distance du support, comme décrit dans le document WO2015189432. The direct method consists in placing the material to be transferred above the support, between the support and the LASER beam, the latter striking the material, on the surface opposite to that facing the support, to project it onto the support, the material being in direct contact with the support, as described in document EP2064748, or being placed at a distance from the support, as described in document WO2015189432.
[0013] La méthode de transfert indirecte, et surtout la méthode de transfert directe, présentent l'inconvénient d’obtenir une couche métallique qui présente des irrégularités d’épaisseur ; en effet, si le faisceau LASER fonctionne de façon discontinue, le dépôt se fait sous la forme de points, ou bien sous la forme de lignes si le faisceau LASER fonctionne en continue, d’un diamètre ou respectivement d’une largeur, correspondant à la taille du faisceau LASER. Cela génère des effets de pixellisation, une partie du support, entre deux points ou deux lignes de dépôt, n’étant pas recouverte de métal, ou bien une rugosité, due aux excès de matière si le LASER effectue des dépôts par passes qui se chevauchent. De par ces irrégularités de dépôt, la couche métallique n’a pas le rendu visuel et/ou le touché d’une plaque faite en métal, en particulier d’un métal usiné. The indirect transfer method, and especially the direct transfer method, have the drawback of obtaining a metal layer which has thickness irregularities; in fact, if the LASER beam operates discontinuously, the deposition takes place in the form of points, or else in the form of lines if the LASER beam operates continuously, with a diameter or respectively a width, corresponding to the size of the LASER beam. This generates pixelation effects, part of the support, between two points or two deposit lines, not being covered with metal, or roughness, due to excess material if the LASER makes deposits in overlapping passes. . Due to these deposit irregularities, the metallic layer does not have the visual rendering and / or the feel of a plate made of metal, in particular a machined metal.
Buts de l’invention Aims of the invention
[0014] La présente invention vise à fournir un panneau métallisé, et un tel panneau décoratif, qui ne présentent pas les inconvénients de l’état de la technique. [0014] The present invention aims to provide a metallized panel, and such a decorative panel, which does not have the drawbacks of the state of the art.
[0015] La présente invention vise à fournir une alternative aux solutions de l’état de la technique existantes. [0015] The present invention aims to provide an alternative to existing state of the art solutions.
[0016] La présente invention vise à fournir une méthode de fabrication permettant d’obtenir un panneau décoratif en verre, ayant un rendu visuel et/ou un touché amélioré, proche du rendu visuel et/ou du touché d’un métal usiné. [0016] The present invention aims to provide a manufacturing method making it possible to obtain a decorative glass panel, having an improved visual rendering and / or feel, close to the visual rendering and / or the feel of a machined metal.
[0017] La présente invention vise également à fournir une méthode de fabrication d’un panneau décoratif, qui soit rapide, aisée à mettre en œuvre Résumé de l’invention [0017] The present invention also aims to provide a method of manufacturing a decorative panel, which is quick and easy to implement. Summary of the invention
[0018] La présente invention porte sur une méthode de réalisation d’un panneau selon l’invention, comprenant les étapes de prendre un support en verre, comprenant au moins une première surface, de préférence également une seconde surface, opposée à la première surface et éventuellement également au moins un premier bord, de préférence plusieurs bords, de prendre un ou plusieurs films métalliques solides, faits d’un ou plusieurs métaux ou alliages de métaux, de prendre une source LASER apte à générer un faisceau LASER pulsé, d’effectuer un dépôt métallique direct sur au moins la première surface, en disposant le ou les films métalliques en face, à distance ou en contact, avec la au moins première surface, entre le support en verre et la source LASER, et en appliquant le faisceau LASER sur le ou les films métalliques afin de transférer le ou les métaux ou alliages de métaux directement sur la au moins première surface, selon un motif déterminé, afin de former un revêtement comprenant une couche métallique recouvrant tout ou partie de la au moins première surface la couche métallique comprenant une surface supérieure, et de surfacer la surface supérieure afin de modifier son état de surface, pour lui conférer l’aspect visuel et/ou le touché d’un métal qui a été usiné. The present invention relates to a method of making a panel according to the invention, comprising the steps of taking a glass support, comprising at least a first surface, preferably also a second surface, opposite to the first surface and possibly also at least a first edge, preferably several edges, to take one or more solid metal films, made of one or more metals or metal alloys, to take a LASER source capable of generating a pulsed LASER beam, of perform a direct metal deposition on at least the first surface, by placing the metal film (s) opposite, at a distance from or in contact with the at least first surface, between the glass support and the LASER source, and by applying the beam LASER on the metal film (s) in order to transfer the metal (s) or metal alloy (s) directly to the at least first surface, in a determined pattern, in order to form a coating comprising a metallic layer covering all or part of the at least first surface the metallic layer comprising an upper surface, and to surface the upper surface in order to modify its surface state, to give it the visual appearance and / or the feel of a metal which has been machined.
[0019] Selon des modes préférés de l’invention, la méthode selon l’invention comprend au moins une, ou une combinaison quelconque appropriée, des caractéristiques suivantes : According to preferred modes of the invention, the method according to the invention comprises at least one, or any suitable combination, of the following characteristics:
- l’étape de surfaçage comprend une étape de polissage, de brossage, d’embossage, de gaufrage, ou une combinaison de ceux-ci, - the surfacing step comprises a step of polishing, brushing, embossing, embossing, or a combination of these,
- l’étape de dépôt du ou des métaux ou alliages de métaux du ou des films métalliques, directement sur la au moins première surface du support en verre, est répétée plusieurs fois, afin d’appliquer, sur la au moins première surface, une multitude de couches faites d’un métal ou d’un alliage de métaux déterminé, ou de différents métaux ou différents alliages de métaux, les couches pouvant se superposer, se chevaucher ou être adjacentes, et comporter des motifs pouvant être identiques ou différents entre les couches, the step of depositing the metal (s) or metal alloy (s) of the metal film (s), directly on the at least first surface of the glass support, is repeated several times, in order to apply, on the at least first surface, a multitude of layers made of a particular metal or metal alloy, or of different metals or different metal alloys, the layers being able to overlap, overlap or be adjacent, and have patterns that can be identical or different between the layers,
- l’étape de dépôt du ou des métaux ou alliages de métaux du ou des films métalliques est répétée afin de former une couche métallique recouvrant tout ou partie de la seconde surface et/ou de plusieurs bords du support en verre, - le ou les films métalliques sont déposés sur une surface d’un support de transfert, transparent au faisceau LASER, la surface du support de transfert étant disposée face à la au moins première surface et/ou au moins premier bord du support à recouvrir, - The step of depositing the metal (s) or metal alloy (s) of the metal film (s) is repeated in order to form a metal layer covering all or part of the second surface and / or of several edges of the glass support, the metallic film (s) are deposited on a surface of a transfer support, transparent to the LASER beam, the surface of the transfer support being placed facing the at least first surface and / or at least first edge of the support to be covered,
- la méthode comprend en outre une étape préalable de recouvrir tout ou partie du support en verre d’un émail ou d’émaux, - the method also includes a preliminary step of covering all or part of the glass support with enamel or enamels,
- la méthode comprend en outre une étape de prétraitement, effectuée avant l’étape de transfert du ou des métaux ou alliages de métaux, et consistant en l’élimination des contaminants superficiels présents sur au moins la première et/ou la seconde surface et/ou sur le ou les bords du support en verre, ou en une structuration de surface, en au moins en deux dimensions, de préférence en en trois dimensions, de la ou les surfaces et/ou du ou des bords du support en verre, - The method further comprises a pretreatment step, carried out before the step of transferring the metal (s) or metal alloys, and consisting in the elimination of the surface contaminants present on at least the first and / or the second surface and / or on the edge (s) of the glass support, or in a surface structuring, in at least two dimensions, preferably in three dimensions, of the surface (s) and / or of the edge (s) of the glass support,
- le panneau décoratif est un panneau d’habillage d’un appareil électroménager, d’un dispositif de chauffage, d’une pièce d’une habitation, ou pour décorer des meubles. - the decorative panel is a panel for covering a household appliance, a heating device, a room in a house, or for decorating furniture.
[0020] La présente invention porte également sur un panneau décoratif obtenu par la méthode selon l’invention. [0020] The present invention also relates to a decorative panel obtained by the method according to the invention.
[0021] Le panneau décoratif comprenant un support en verre comprenant au moins une première surface, de préférence également une seconde surface, opposée à la première surface, et éventuellement également au moins un premier bord, de préférence plusieurs bords, l’une ou les deux surfaces et/ou un ou plusieurs bords étant recouvert(e)s, totalement ou partiellement, d’un revêtement comprenant au moins une couche métallique comprenant un ou plusieurs métaux ou alliages de métaux déposés par un transfert direct à l’aide d’un faisceau LASER, et formant un ou plusieurs motifs décoratifs la couche métallique possédant une surface supérieure, ayant été surfacée afin d’obtenir l’aspect visuel et/ou le touché d’un métal qui a été usiné. The decorative panel comprising a glass support comprising at least a first surface, preferably also a second surface, opposite the first surface, and possibly also at least a first edge, preferably several edges, one or more two surfaces and / or one or more edges being covered, totally or partially, with a coating comprising at least one metallic layer comprising one or more metals or metal alloys deposited by direct transfer using a LASER beam, and forming one or more decorative patterns the metallic layer having an upper surface, having been surfaced in order to obtain the visual appearance and / or the feel of a metal which has been machined.
[0022] Selon des modes préférés de l’invention, le panneau décoratif selon l’invention comprend au moins une, ou une combinaison quelconque appropriée, des caractéristiques suivantes : [0022] According to preferred modes of the invention, the decorative panel according to the invention comprises at least one, or any suitable combination, of the following characteristics:
- l’aspect visuel et/ou le touché d’un métal usiné est choisi parmi l’aspect visuel et/ou le touché d’un métal poli, d’un métal brossé, d’un métal gaufré ou d’un métal embossé, ou une combinaison de ceux-ci, - la couche métallique comprend une multitude de couches d’un métal ou d’un alliage de métaux déterminé, ou de différents métaux et/ou de différents alliages de métaux, les couches minces étant superposées, adjacentes ou se chevauchant les unes par rapport aux autres, - the visual appearance and / or the feel of a machined metal is chosen from the visual appearance and / or the feel of a polished metal, a brushed metal, an embossed metal or an embossed metal , or a combination of these, - the metal layer comprises a multitude of layers of a metal or a determined metal alloy, or of different metals and / or different metal alloys, the thin layers being superimposed, adjacent or overlapping with respect to each other. other,
- la surface supérieure de la couche métallique, est recouverte d’un vernis de protection ne modifiant pas l’aspect visuel et/ou le touché de ladite surface supérieure. - the upper surface of the metal layer is covered with a protective varnish that does not modify the visual appearance and / or the feel of said upper surface.
[0023] La présente invention porte aussi sur l’utilisation du panneau décoratif selon l’invention pour décorer un appareil électroménager, pour décorer une pièce d’une habitation, ou pour décorer des meubles. [0023] The present invention also relates to the use of the decorative panel according to the invention to decorate a household appliance, to decorate a room of a dwelling, or to decorate furniture.
Brève description des figures Brief description of the figures
[0024] La figure 1 est une représentation schématique d’une vue de coté d’un panneau selon l’invention. [0024] Figure 1 is a schematic representation of a side view of a panel according to the invention.
[0025] La figure 2 est une représentation schématique d’un premier mode de réalisation de la méthode selon l’invention. [0025] Figure 2 is a schematic representation of a first embodiment of the method according to the invention.
[0026] La figure 3 est une représentation schématique d’un second mode de réalisation de la méthode selon l’invention. [0026] Figure 3 is a schematic representation of a second embodiment of the method according to the invention.
Description détaillée de l'invention Detailed description of the invention
[0027] Dans la suite de la description et des revendications, le terme « longueur » est utilisé pour décrire la plus grande des mesures d’un coté d’une forme géométrique quelconque, par exemple le grand rayon d’un ellipsoïde ou d’une ellipse, la base ou la hauteur d’un triangle, la longueur d’un trapézoïde ou d’un rectangle. Le terme « largeur » est utilisé pour décrire la plus petite des mesures, par exemple le petit rayon d’un ellipsoïde ou d’une ellipse, la base ou la hauteur d’un triangle, la largeur d’un trapézoïde ou d’un rectangle, et les termes « longueur » et « largeur » peuvent être utilisés indifféremment, par exemple pour désigner la mesure du rayon d’un disque, le coté d’un carré. In the remainder of the description and of the claims, the term "length" is used to describe the largest of the measurements of one side of any geometric shape, for example the large radius of an ellipsoid or of an ellipse, the base or height of a triangle, the length of a trapezoid or rectangle. The term "width" is used to describe the smallest of measurements, for example the small radius of an ellipsoid or ellipse, the base or height of a triangle, the width of a trapezoid or rectangle, and the terms “length” and “width” can be used interchangeably, for example to designate the measure of the radius of a disc, the side of a square.
[0028] Les termes « haut », « bas », « supérieur », « inférieur », « avant », « arrière », « vertical » ou « horizontal » font référence à la position horizontale du panneau selon l’invention, et des éléments mis en œuvre selon la méthode de l’invention, comme représentés aux figures 1 à 3. The terms "top", "bottom", "upper", "lower", "front", "rear", "vertical" or "horizontal" refer to the horizontal position of the panel according to the invention, and elements implemented according to the method of the invention, as shown in Figures 1 to 3.
[0029] La méthode selon l’invention met en œuvre une étape de métallisation d’un support 2 en verre, une étape de transfert d’un ou plusieurs métaux ou alliages de métaux, qui est dite « directe » (figures 2 et 3), pour un dépôt, sur la totalité d’une ou plusieurs surfaces du support 2, ou un dépôt structuré de métal, à savoir sur une partie de la ou des surface du support 2, de préférence selon un motif décoratif pouvant être ou comprendre des inscriptions, des signes, des formes géométriques, des logos, des images. The method according to the invention implements a step of metallization of a glass support 2, a step of transferring one or more metals or metal alloys, which is called "direct" (Figures 2 and 3 ), for a deposit, on all of one or more surfaces of the support 2, or a structured deposit of metal, namely on a part of the surface (s) of the support 2, preferably in a decorative pattern which may be or include inscriptions, signs, geometric shapes, logos, images.
[0030] La méthode selon l’invention comprend les étapes de prendre, ou réaliser, un support 2 en verre, éventuellement recouvert, partiellement ou totalement, d’une ou plusieurs couches d’émail ou d’émaux, et de prendre, ou réaliser, un ou plusieurs films 3, ou feuilles, métalliques, à l’état solide. The method according to the invention comprises the steps of taking, or making, a glass support 2, optionally covered, partially or totally, with one or more layers of enamel or enamels, and of taking, or making one or more films 3, or sheets, metallic, in the solid state.
[0031] Le support 2 est rigide et sensiblement inflexible. Il présente une résistance mécanique, à des sollicitations de flexion et/ou de torsion, suffisante pour ne pas se déformer sous l’action d’une force de flexion et/ou de torsion. Il est également au moins inerte thermiquement, avantageusement également inerte physiquement et chimiquement au(x) matériau(x) dont il est recouvert ou en contact. [0031] The support 2 is rigid and substantially inflexible. It has a mechanical resistance, to bending and / or torsional stresses, sufficient not to deform under the action of a bending and / or torsional force. It is also at least thermally inert, advantageously also physically and chemically inert to the material (s) with which it is covered or in contact.
[0032] Le support 2 est de préférence transparent, ou bien partiellement transparent, optiquement dans le domaine du visible, dans son épaisseur et/ou sa largeur et/ou sa longueur. Il peut être sablé et/ou sérigraphié et/ou coloré sur tout ou partie de ces surfaces ou de ces bords. [0032] The support 2 is preferably transparent, or else partially transparent, optically in the visible range, in its thickness and / or its width and / or its length. It can be sandblasted and / or screen printed and / or colored on all or part of these surfaces or of these edges.
[0033] Dans un mode de réalisation préféré de l’invention, le support 2 est un verre sodocalcique transparent ou teinté dans la masse, éventuellement à couches diverses, telles que anti-bactériennes, anti-réfléchissantes, par exemple du type connu sous la marque Matelux®, chromées, à faible émissivité, par exemple du type connu sous le nom de Planibel Clear ou de Planibel low-E IsoComfort, commercialisé par la société AGC, ou un borosilicate par exemple connu sous la marque Borofloat® 33. De préférence, le verre est à forte teneur en Si02, une teneur avantageusement comprise entre 69 % et 81 % en poids et avec une transmission lumineuse pouvant aller jusqu’à 90 %. Le verre peut avoir éventuellement préalablement subi un traitement thermique du type durcissement, recuit, trempe, bombage. [0034] Le support 2 a une forme, une épaisseur et des dimensions adéquates et adaptées, ou compatibles, avec l’utilisation finale du panneau 1 , ou des éléments qui comprennent un tel panneau 1. In a preferred embodiment of the invention, the support 2 is a transparent soda lime glass or tinted in the mass, optionally with various layers, such as anti-bacterial, anti-reflective, for example of the type known under the Matelux® brand, chrome-plated, low-emissivity, for example of the type known under the name Planibel Clear or Planibel low-E IsoComfort, marketed by the company AGC, or a borosilicate for example known under the brand Borofloat® 33. Preferably , the glass has a high SiO 2 content, a content advantageously between 69% and 81% by weight and with a light transmission which can range up to 90%. The glass may optionally have previously undergone a heat treatment of the hardening, annealing, tempering or bending type. The support 2 has a shape, thickness and dimensions that are adequate and adapted, or compatible, with the end use of the panel 1, or elements which include such a panel 1.
[0035] Le support 2 est sensiblement plan. Il s’agit de préférence d’un verre plat. Il comprend au moins une première surface 4, continue et sensiblement plane, de préférence une seconde surface 5, continue et sensiblement plane, opposée à ladite première surface 4 (figures 1 à 3). [0035] The support 2 is substantially flat. It is preferably a flat glass. It comprises at least a first surface 4, continuous and substantially planar, preferably a second surface 5, continuous and substantially planar, opposite said first surface 4 (FIGS. 1 to 3).
[0036] De préférence, le support 2 a une section transversale, donc dans le plan formé par la surface 4 ou la surface 5, dans le plan X-Z, de forme circulaire, elliptique, polygonale, trapézoïdale ou bien d’un quadrilatère, avantageusement une section losange, carrée ou rectangulaire. De préférence, le support 2 a une section longitudinale, donc dans le plan X-Y, et/ou une section transversale, donc dans le plan Y-Z, perpendiculaires au plan formé par la surface 4 ou la surface 5, circulaire, elliptique ou polygonale, trapézoïdale ou bien d’un quadrilatère, avantageusement une section carrée ou rectangulaire, d’un trapèze ou d’un trapèze rectangle. Preferably, the support 2 has a cross section, therefore in the plane formed by the surface 4 or the surface 5, in the XZ plane, of circular, elliptical, polygonal, trapezoidal or else of a quadrilateral shape, advantageously a rhombus, square or rectangular section. Preferably, the support 2 has a longitudinal section, therefore in the XY plane, and / or a cross section, therefore in the YZ plane, perpendicular to the plane formed by the surface 4 or the surface 5, circular, elliptical or polygonal, trapezoidal or else of a quadrilateral, advantageously a square or rectangular section, of a trapezoid or of a rectangle trapezoid.
[0037] Le support 2 comprend au moins un premier bord latéral 6, et dans les modes de réalisation dans lesquels il a une section transversale et/ou longitudinal parallélépipédique, par exemple carrée(s) ou rectangulaire(s), il comprend un second bord latéral 7, opposé au premier bord latéral 6, un bord avant 8 et un bord arrière 9, opposé au bord avant 8. The support 2 comprises at least a first lateral edge 6, and in the embodiments in which it has a parallelepipedal transverse and / or longitudinal section, for example square (s) or rectangular (s), it comprises a second side edge 7, opposite to the first side edge 6, a front edge 8 and a rear edge 9, opposite to the front edge 8.
[0038] De préférence, le premier bord latéral 6 et/ou le second bord latéral 7, le bord avant 8 et/ou le bord arrière 9 est ou sont chanfreiné(s). Preferably, the first side edge 6 and / or the second side edge 7, the front edge 8 and / or the rear edge 9 is or are chamfer (s).
[0039] Dans des modes de réalisation particulier de l’invention, tout ou partie des surfaces 4, 5 et/ou des bords 6, 7, 8, 9 peuvent être recouverts d’une ou plusieurs couches d’émail ou d’émaux, un dépôt s’effectuant avant, ou après, le dépôt direct de la couche 14 métallique, l’émail ou les émaux étant disposées de façon superposées ou adjacentes entre eux. Dans ces modes de réalisation de l’invention, le revêtement recouvrant le support 2 est alors constitué de la couche 14 métallique et de la ou des couches d’émail ou d’émaux. In particular embodiments of the invention, all or part of the surfaces 4, 5 and / or the edges 6, 7, 8, 9 may be covered with one or more layers of enamel or enamels , a deposition taking place before, or after, the direct deposition of the metallic layer 14, the enamel or the enamels being arranged superimposed or adjacent to one another. In these embodiments of the invention, the coating covering the support 2 then consists of the metallic layer 14 and the layer or layers of enamel or enamels.
[0040] De préférence, le support 2 est déposé sur un porte-support 10 sur lequel il est fixé durant le processus de métallisation (figures 2 et 3). Toutefois, le porte- support 10 peut être mobile en rotation, par exemple selon l’axe Y-Y’, et/ou en translation, selon l’axe Y-Y’ et/ou l’axe X-X’. A ces fins, le porte-support 10 peut être couplé à un mécanisme de commande de mouvement multiaxes pour déplacer et positionner le porte-support 10 dans différentes orientations et selon différents angles. Une fois sa position et son orientation déterminée, le porte-support 10 peut être fixe, ou mobile, durant le processus de métallisation du support 2. Preferably, the support 2 is placed on a support holder 10 on which it is fixed during the metallization process (Figures 2 and 3). However, the support holder 10 can be movable in rotation, for example along the Y-Y 'axis, and / or in translation, along the Y-Y 'axis and / or the X-X' axis. For these purposes, the carrier 10 can be coupled to a multi-axis motion control mechanism to move and position the carrier 10 in different orientations and at different angles. Once its position and orientation have been determined, the support holder 10 can be fixed, or mobile, during the process of metallization of the support 2.
[0041] Le ou les films 3 métalliques sont de préférence monocouches et sont faits d’un seul métal ou d’un seul alliage de métaux. Toutefois, il est également possible de prévoir l’utilisation d’un ou plusieurs films 3 multicouches comprenant plusieurs couches du même métal ou alliage de métaux ou de différentes couches de différents métaux ou alliages de métaux. [0041] The metallic film (s) 3 are preferably single-layer and are made of a single metal or a single alloy of metals. However, it is also possible to provide for the use of one or more multilayer films 3 comprising several layers of the same metal or metal alloy or of different layers of different metals or metal alloys.
[0042] De préférence, le métal est choisi parmi l’Aluminium, le Cuivre, le fer, l'acier inoxydable, le Magnésium, l'Argent, le Chrome, le Titane, le Zinc, l'étain et leurs alliages. [0042] Preferably, the metal is selected from Aluminum, Copper, iron, stainless steel, Magnesium, Silver, Chromium, Titanium, Zinc, tin and their alloys.
[0043] Le ou les films 3 métalliques ont une épaisseur comprise entre 10 et 300miti. The metal film or films 3 have a thickness of between 10 and 300miti.
[0044] De préférence, le ou les films 3 métalliques peuvent se trouver sous la forme d’un ou plusieurs rubans continus afin de constituer une source continue de métal à transférer. [0044] Preferably, the metallic film (s) 3 may be in the form of one or more continuous ribbons in order to constitute a continuous source of metal to be transferred.
[0045] De préférence, le ou les films 3 métalliques peuvent être déposés, par tous moyens adéquats, sur un support de transfert 11 , par exemple un support en verre transparent au faisceau 12 d’un LASER 13, et recouvrir au moins une de ces surfaces, celle destinée à faire face à la surface 4, 5 ou au bord 6, 7, 8 ou 9 du support 2, à recouvrir (figure 3). Preferably, the metal film or films 3 can be deposited, by any suitable means, on a transfer support 11, for example a glass support transparent to the beam 12 of a LASER 13, and cover at least one of these surfaces, that intended to face the surface 4, 5 or the edge 6, 7, 8 or 9 of the support 2, to be covered (FIG. 3).
[0046] De préférence, le support de transfert 11 est mobile en rotation, par exemple selon l’axe Y-Y’, et/ou en translation, selon l’axe Y-Y’ et/ou l’axe X-X’. A ces fins, le support de transfert 11 peut être couplé à un mécanisme de commande de mouvement multiaxes pour déplacer et positionner le support de transfert 11 dans différentes orientations et selon différents angles. Une fois sa position et son orientation déterminée, le support de transfert 11 peut être fixe, ou mobile, durant le processus de métallisation. Preferably, the transfer support 11 is movable in rotation, for example along the Y-Y 'axis, and / or in translation, along the Y-Y' axis and / or the X-X axis '. For these purposes, the transfer medium 11 can be coupled to a multi-axis motion control mechanism to move and position the transfer medium 11 in different orientations and at different angles. Once its position and orientation have been determined, the transfer support 11 can be fixed, or mobile, during the metallization process.
[0047] De préférence, la méthode selon l’invention comprend une étape préalable de détermination de la ou des surfaces 4, 5, et/ou de la ou des portions de la ou des surfaces 4, 5, et/ou du ou des bords 6, 7, 8, 9, et/ou de la ou des portions du ou des bords 6, 7, 8, 9 à décorer. Il peut s’agir de tout ou partie des surfaces 4, 5 et/ou des bords 6, 7, 8, 9 recouvert(e)s ou non d’une ou plusieurs couches d’émail ou d’émaux. Preferably, the method according to the invention comprises a preliminary step of determining the surface (s) 4, 5, and / or the portion (s) of the surface (s) 4, 5, and / or the surface (s) edges 6, 7, 8, 9, and / or the portion or portions of the edges 6, 7, 8, 9 to decorate. It may be all or part of the surfaces 4, 5 and / or the edges 6, 7, 8, 9 covered or not with one or more layers of enamel or enamels.
[0048] De préférence, la méthode selon l’invention comprend une étape préalable de détermination du ou des motifs à réaliser, et une étape de configuration d’un système de commande contrôlant les mouvements du porte-support 10 et/ou du support de transfert 11 et/ou de la source LASER 13. Le ou les motifs peuvent être ou comprendre un couche uniforme, continue ou discontinue, des inscriptions, des signes, des formes géométriques, des logos, des images, qui reproduit ou reproduisent l’aspect de surface et/ou le touché d’un métal usiné, par exemple un métal poli, un métal embossé ou un métal brossé, ou bien d’un matériau en fibres de carbone, ou bien d’un matériau naturel, comme par exemple du bois. Preferably, the method according to the invention comprises a prior step of determining the pattern (s) to be produced, and a step of configuring a control system controlling the movements of the support holder 10 and / or of the support. transfer 11 and / or the LASER source 13. The pattern (s) can be or comprise a uniform, continuous or discontinuous layer, inscriptions, signs, geometric shapes, logos, images, which reproduces or reproduce the appearance surface and / or the feel of a machined metal, for example a polished metal, an embossed metal or a brushed metal, or of a carbon fiber material, or of a natural material, such as for example wood.
[0049] De préférence, la méthode selon l’invention comprend une étape préalable de prétraitement de l’une ou des deux surfaces 4, 5 et/ou de l’un ou des bords 6, 7, 8, 9 du support 2, recouvert(e)s ou non d’émail, qui consiste en élimination des contaminants superficiels, ou en une structuration de surface au moins en deux dimensions, de préférence en trois dimensions, ou la création de rugosités de surface, sur tout ou une partie de la ou des surfaces 4, 5 et/ou du ou des bords 6, 7, 8, 9, destinée(s), ou pas, à être métallisée(s), soit par action chimique et/ou mécanique. Cela permet de renforcer l’aspect visuel et/ou le touché final du panneau 1 décoratif selon l’invention. Les moyens chimiques peuvent être tous acides ou mélanges d’acides auxquels le support 2 en verre est sensible, comme par exemple l'acide fluorhydrique. Les moyens mécaniques peuvent être, ou comprendre, des d'outils et/ou des matériaux abrasifs, ou une ablation LASER, notamment une ablation par un LASER femtoseconde. Preferably, the method according to the invention comprises a preliminary step of pretreating one or both surfaces 4, 5 and / or one or more edges 6, 7, 8, 9 of the support 2, coated or not with enamel, which consists of removing surface contaminants, or at least two-dimensional surface structuring, preferably three-dimensional, or the creation of surface roughness, on all or part of the surface (s) 4, 5 and / or of the edge (s) 6, 7, 8, 9, intended (s) or not, to be metallized, either by chemical and / or mechanical action. This makes it possible to strengthen the visual appearance and / or the final feel of the decorative panel 1 according to the invention. The chemical means can be any acids or mixtures of acids to which the glass support 2 is sensitive, such as for example hydrofluoric acid. The mechanical means may be, or comprise, tools and / or abrasive materials, or LASER ablation, in particular ablation by a femtosecond LASER.
[0050] L’étape de transfert direct d’un ou plusieurs métaux ou alliages de métaux se fait en disposant le ou les films 3 métalliques, en face de, à distance, ou bien en contact direct, avec au moins une des surfaces 4, 5, ou portion(s) de la surface 4 ou 5, et/ou au moins un bord 6, 7, 8, 9, ou portion(s) du bord 6, 7, 8, 9 du support 2 en verre à recouvrir, que les surfaces 4, 5 et/ou les bords 6, 7, 8, 9 soient recouverts, ou non, partiellement ou totalement, d’un émail ou de plusieurs émaux. Ainsi, le ou les films 3 métalliques sont disposés entre le support 2 en verre et la source LASER 13, le dos du ou des films 3 métalliques se trouvant sous la source LASER 13, et ce, que le ou les films 3 métalliques soient déposés sur un support de transfert 11 , ou non. The direct transfer step of one or more metals or metal alloys is done by placing the metal film (s) 3, in front of, at a distance, or else in direct contact, with at least one of the surfaces 4 , 5, or portion (s) of the surface 4 or 5, and / or at least one edge 6, 7, 8, 9, or portion (s) of the edge 6, 7, 8, 9 of the support 2 in glass to cover, whether the surfaces 4, 5 and / or the edges 6, 7, 8, 9 are covered, or not, partially or totally, with an enamel or several enamels. Thus, the metal film or films 3 are placed between the glass support 2 and the LASER source 13, the back of the metal film (s) 3 located under the LASER source 13, whether or not the metal film (s) 3 are deposited on a transfer support 11, or not.
[0051] La couche 14 métallique, ainsi obtenue, présente une multitude de points de dépôts, ou de lignes de dépôts, selon que le faisceau LASER 12 soit appliqué respectivement de façon discontinue ou continue ayant respectivement un diamètre ou une largeur équivalent(e) au diamètre du faisceau LASER 12, par, respectivement, des passes distantes ou chevauchantes. Cela entraîne un effet de pixellisation et une irrégularités de l’épaisseur de la couche métallique. The metal layer 14, thus obtained, has a multitude of deposit points, or lines of deposits, depending on whether the LASER beam 12 is applied respectively discontinuously or continuously, respectively having an equivalent diameter or width. to the diameter of the LASER beam 12, by, respectively, distant or overlapping passes. This results in a pixelation effect and irregularities in the thickness of the metal layer.
[0052] De préférence, la méthode selon l’invention comprend en outre une étape de prendre un ou plusieurs masques, opaques au faisceau LASER 12, et de le ou les disposer sur le ou les films 3 métalliques, ou entre ces derniers et la surface 4 ou 5 ou le bord 6, 7, 8, 9 du support 2 en verre à recouvrir, en contact ou à distance de la surface 4 ou 5 ou du bord 6, 7, 8, 9 à recouvrir. Preferably, the method according to the invention further comprises a step of taking one or more masks, opaque to the LASER beam 12, and of placing it or them on the metal film or films 3, or between the latter and the surface 4 or 5 or the edge 6, 7, 8, 9 of the glass support 2 to be covered, in contact or at a distance from the surface 4 or 5 or from the edge 6, 7, 8, 9 to be covered.
[0053] L’étape de décoration du support 2, à savoir la réalisation du dépôt de la couche métallique, selon un motif déterminé, est réalisée à l’aide d’un faisceau LASER 12 pulsé, qui est appliqué, à température ambiante et sous pression atmosphérique, sur le dos du ou des films 3 métalliques à l’état solide, pour transférer directement le ou les métaux ou alliages de métaux dont ils sont faits sur tout ou partie de la surface 4, 5 et/ou du bord 6, 7, 8, 9 du support 2, et/ou sur tout ou partie de l’émail ou des émaux recouvrant la surface 4, 5 et/ou du bord 6, 7, 8, 9, afin de former une couche 14 métallique, recouvrant, de façon continue ou discontinue, tout ou partie de l’émail ou des émaux et/ou de la surface 4, 5 et/ou du bord 6, 7, 8, 9 du support 2 ou y reproduit le ou les motifs prédéterminés. The step of decorating the support 2, namely the production of the deposition of the metal layer, according to a determined pattern, is carried out using a pulsed LASER beam 12, which is applied at room temperature and under atmospheric pressure, on the back of the metal film (s) 3 in the solid state, to directly transfer the metal (s) or metal alloys of which they are made to all or part of the surface 4, 5 and / or the edge 6 , 7, 8, 9 of the support 2, and / or on all or part of the enamel or enamels covering the surface 4, 5 and / or the edge 6, 7, 8, 9, in order to form a metallic layer 14 , covering, continuously or discontinuously, all or part of the enamel or enamels and / or the surface 4, 5 and / or the edge 6, 7, 8, 9 of the support 2 or reproduces the pattern (s) therein predetermined.
[0054] L’emploi du faisceau LASER 12 pulsé fait que le métal ou les métaux ou alliages de métaux sont fixés et adhèrent directement sur le support 2 en verre, sans l’utilisation d’une sous-couche d’accroche, d’une colle ou d’un adhésif, ou d’un quelconque polymère et donc d’une étape de polymérisation. The use of the pulsed LASER beam 12 that the metal or metals or metal alloys are fixed and adhere directly to the glass support 2, without the use of a bonding underlayer, of a glue or an adhesive, or any polymer and therefore a polymerization step.
[0055] Par exemple, pour une couche 14 en Aluminium de 10 miti d’épaisseur, déposée sur une surface en verre, la résistance au pelage, réalisée à 22 ° C à l’aide d’un scléromètre, est de 20 Newtons. [0055] For example, for a layer 14 of Aluminum 10 miti thick, deposited on a glass surface, the peel resistance, achieved at 22 ° C using a hammer gauge, is 20 Newtons.
[0056] Le faisceau LASER 12 possède une énergie et une vitesse adéquate, qui est fonction de la distance entre la source LASER 13 par rapport au(x) film(s) 3 métallique(s) et de la distance entre le ou les films 3 métalliques et le support 2 en verre. En tout état de cause, la source LASER 13 est positionnée de telle sorte à ce que le faisceau LASER 12 soit focalisé sur le dos du ou des films 3 métalliques. The LASER beam 12 has an energy and an adequate speed, which is a function of the distance between the LASER source 13 relative to the film (s) 3 metal (s) and the distance between the metal film or films 3 and the glass support 2. In any event, the LASER source 13 is positioned so that the LASER beam 12 is focused on the back of the metal film or films 3.
[0057] De préférence, le faisceau LASER 12 est généré par un LASER femtoseconde, produisant des impulsions dont la fréquence est comprise entre 1 kHz et 2 MHz et dont la durée est de l'ordre de quelques femtosecondes à quelques centaines de femtosecondes, et de longueur d’onde comprise entre 300nm et 10 miti. Preferably, the LASER beam 12 is generated by a femtosecond LASER, producing pulses whose frequency is between 1 kHz and 2 MHz and whose duration is of the order of a few femtoseconds to a few hundred femtoseconds, and wavelength between 300nm and 10miti.
[0058] Durant le transfert métallique, le faisceau LASER 12 et le support 2 en verre ou le ou les films 3 métalliques ont un mouvement relatif l’un par rapport à l’autre. De préférence, la source LASER 13 est montée mobile par rapport au support 2 en verre ou au porte-support 10, s’il est présent, et/ou au(x) film(s) 3 métallique(s) ou au support de transfert 11 s’il est présent. Néanmoins, il est possible que ce soit le support 2 en verre, ou le porte-support 10, et/ou le ou les films 3 métalliques, ou le support de transfert 11 , qui soient mobiles, ou bien tous en même temps, ou alors de façon séquentielle. Cela présente l’avantage de pouvoir recouvrir une ou bien plusieurs surfaces et/ou un ou plusieurs bords. During the metal transfer, the LASER beam 12 and the glass support 2 or the metal film (s) 3 have a relative movement with respect to each other. Preferably, the LASER source 13 is mounted to move relative to the glass support 2 or to the support holder 10, if it is present, and / or to the metal film (s) 3 or to the support of transfer 11 if present. Nevertheless, it is possible that it is the glass support 2, or the support holder 10, and / or the metallic film (s) 3, or the transfer support 11, which are mobile, or else all at the same time, or then sequentially. This has the advantage of being able to cover one or more surfaces and / or one or more edges.
[0059] Le faisceau LASER 12 pulsé est appliqué de façon continue ou répétée, jusqu’à la réalisation du motif déterminé, qui peut consister en un recouvrement de tout ou partie d’au moins un ou des deux surfaces 4, 5 et/ou d’au moins un bord 6, 7, 8, 9 du support 2 en verre, et/ou de l’émail ou des émaux qui les recouvrent, le nombre de répétitions étant fonction de la taille du point du faisceau LASER 12 et/ou de la surface à revêtir. The pulsed LASER beam 12 is applied continuously or repeatedly, until the determined pattern is achieved, which may consist of covering all or part of at least one or both surfaces 4, 5 and / or at least one edge 6, 7, 8, 9 of the glass support 2, and / or the enamel or enamels which cover them, the number of repetitions being a function of the size of the point of the LASER beam 12 and / or the surface to be coated.
[0060] Dans un mode de réalisation particulier, la méthode peut comprendre la fourniture d’un ou plusieurs masques, non transparents au faisceau LASER 12, et qui peuvent être disposées sur le ou les films 3 métalliques ou entre le ou les films 3 métalliques et la surface 4, 5 ou le bord 6, 7, 8, 9 du support 2 à métalliser. In a particular embodiment, the method can comprise the provision of one or more masks, not transparent to the LASER beam 12, and which can be arranged on the metal film (s) 3 or between the metal film (s) 3 and the surface 4, 5 or the edge 6, 7, 8, 9 of the support 2 to be metallized.
[0061] Dans les modes de réalisation dans lesquels le ou les films 3 métalliques sont en contact avec la surface 4, 5 ou le bord 6, 7, 8, 9 à recouvrir, le surplus du ou des films 3 n’adhérant pas au support 2 est éliminé par décollement, par exemple en utilisant des moyens de pelage, des moyens de soufflage ou équivalents. In the embodiments in which the metal film or films 3 are in contact with the surface 4, 5 or the edge 6, 7, 8, 9 to be covered, the surplus of the film or films 3 not adhering to the support 2 is removed by peeling, for example using peeling means, blowing means or the like.
[0062] La au moins première couche 14 métallique possède une épaisseur comprise entre 10 et 300 miti. [0063] L’étape de transfert de métal peut être répétée plusieurs fois afin d’appliquer une multitude de couches homogènes d’un métal ou d’un alliage de métaux déterminé, ou de différents métaux et/ou de différents alliages de métaux, les différentes couches pouvant se superposer, se chevaucher ou être adjacentes, l’épaisseur totale des couches étant de préférence, comprise en 20 et 300 miti, les motifs pouvant être identiques ou différents. Par exemple, il est possible de former des lignes, des signes ou des mots, faits d’un ou de différents métaux ou alliages de métaux sur une couche uniforme d’un ou plusieurs autres métaux ou alliages de métaux recouvrant uniformément tout ou partie d’une des surfaces 4, 5 ou d’un bord 6, 7, 8, 9 du support 2 en verre et/ou de l’émail ou des émaux qui les recouvrent. The at least first metal layer 14 has a thickness between 10 and 300 miti. The metal transfer step can be repeated several times in order to apply a multitude of homogeneous layers of a particular metal or metal alloy, or of different metals and / or different metal alloys, the different layers possibly being superimposed, overlapping or being adjacent, the total thickness of the layers preferably being between 20 and 300 miti, the patterns possibly being identical or different. For example, it is possible to form lines, signs or words, made of one or more metals or metal alloys on a uniform layer of one or more other metals or metal alloys uniformly covering all or part of it. one of the surfaces 4, 5 or of an edge 6, 7, 8, 9 of the support 2 made of glass and / or the enamel or enamels which cover them.
[0064] Dans les modes de réalisation dans lesquels une seule des deux surfaces 4 ou 5 ou un seul des bords 6, 7, 8, 9 du support 2 en verre est recouvert(e) de la couche 14 métallique, l’autre surface 4 ou 5 ou l’autre bord 6, 7, 8, 9 opposé, ou les autres bords 6, 7, 8, 9, peut ou peuvent être recouverts ou recouverte(s) d’une ou plusieurs peintures, ou d’un ou plusieurs émaux colorés, pour renforcer l’apparence visuel de la surface 4 ou 5 ou du bord 6, 7, 8, 9 comprenant la couche 14 métallique, par exemple en conférant au support 2 en verre un aspect miroir à l’intérieur de son épaisseur ou depuis le ou les bords 6, 7, 8, 9 du support 2. In the embodiments in which only one of the two surfaces 4 or 5 or only one of the edges 6, 7, 8, 9 of the glass support 2 is covered with the metal layer 14, the other surface 4 or 5 or the other opposite edge 6, 7, 8, 9, or the other edges 6, 7, 8, 9, may or may be covered or covered with one or more paints, or a or more colored enamels, to enhance the visual appearance of the surface 4 or 5 or of the edge 6, 7, 8, 9 comprising the metallic layer 14, for example by giving the glass support 2 a mirror appearance inside its thickness or from the edge (s) 6, 7, 8, 9 of the support 2.
[0065] Dans les modes de réalisation dans lesquels les deux surfaces 4 et 5 ou au moins deux bords 6, 7, 8, 9 du support 2 en verre sont décorés, le support 2 peut être fixe et la source LASER 13 et le ou les films 3 métalliques, éventuellement le support de transfert 11 s’il est présent, peuvent être mobiles et mis en mouvement, afin de se positionner en face de la seconde surface 4 ou 5 ou du second bord 6, 7, 8, 9 à recouvrir ; néanmoins, dans le mode de réalisation dans lequel le support 2 est déposé sur un porte-support 10, ce dernier sera fait d’un matériau transparent au faisceau LASER 12. Toutefois, de façon plus aisée, la source LASER 13 et le ou les films 3 métalliques, éventuellement le support de transfert 11 s’il est présent, sont fixes et c’est le support 2, ou son porte-support 10 s’il est présent, qui est mobile, et mis en rotation, selon l’axe Z-Z’, afin de positionner la seconde surface 4 ou 5 ou le second bord 6, 7, 8, 9 en face du ou des films 3 métalliques. In the embodiments in which the two surfaces 4 and 5 or at least two edges 6, 7, 8, 9 of the glass support 2 are decorated, the support 2 can be fixed and the LASER source 13 and the or the metal films 3, possibly the transfer support 11 if present, can be mobile and set in motion, in order to position themselves opposite the second surface 4 or 5 or the second edge 6, 7, 8, 9 to cover; nevertheless, in the embodiment in which the support 2 is deposited on a support holder 10, the latter will be made of a material transparent to the LASER beam 12. However, more easily, the LASER source 13 and the one or more them. metal films 3, possibly the transfer support 11 if it is present, are fixed and it is the support 2, or its support holder 10 if it is present, which is mobile, and rotated, according to the Z-Z 'axis, in order to position the second surface 4 or 5 or the second edge 6, 7, 8, 9 opposite the metal film or films 3.
[0066] La méthode selon l’invention comprend ensuite une étape de post-traitement, postérieure à l’étape de transfert métallique. Ce post-traitment est une étape de surfaçage de la surface supérieure 15 de la couche 14 métallique réalisée à l’aide de moyens de surfaçage. The method according to the invention then comprises a post-treatment step, subsequent to the metal transfer step. This post-processing is a stage of surfacing of the upper surface 15 of the metal layer 14 produced using surfacing means.
[0067] Dans les modes de réalisation dans lesquels les deux surfaces 4 et 5, une surface 4 et 5 et un bord 6, 7, 8, 9, ou au moins deux bords 6, 7, 8, 9, du support 2 en verre sont décorées, l’étape de surfaçage peut être réalisée après le recouvrement des surfaces 4, 5, des deux bords 6, 7, 8, 9, ou après le recouvrement de chaque surface 4, 5 ou chaque bord 6, 7, 8, 9. In the embodiments in which the two surfaces 4 and 5, a surface 4 and 5 and an edge 6, 7, 8, 9, or at least two edges 6, 7, 8, 9, of the support 2 in glass are decorated, the surfacing step can be performed after the covering of surfaces 4, 5, of the two edges 6, 7, 8, 9, or after the covering of each surface 4, 5 or each edge 6, 7, 8 , 9.
[0068] L’étape de surfaçage consiste à modifier l’état de surface de la surface supérieure 15 de la couche 14 métallique, qui présente un effet de pixellisation et/ou des irrégularités d’épaisseur ou de surface, de l’aplanir et l’homogénéiser, ce qui permet de réduire l’effet de pixellisation et/ou les irrégularités, engendrés par le transfert métallique direct par point du faisceau LASER 12. La couche 14 métallique possède ainsi l’aspect visuel et/ou le touché d’un métal qui a été usiné, à savoir l’aspect visuel et/ou la texture d’un métal ayant été soumis à des outils de façonnage après coulage ou moulage, et éventuellement laminage. Il peut s’agir par exemple de l’aspect visuel et/ou la texture d’un métal poli, d’un métal brossé, d’un métal embossé et/ou d’un métal gaufré. The surfacing step consists in modifying the surface state of the upper surface 15 of the metal layer 14, which has a pixelation effect and / or thickness or surface irregularities, to flatten it and homogenize it, which makes it possible to reduce the effect of pixelation and / or the irregularities, generated by the direct metallic transfer by point of the LASER beam 12. The metallic layer 14 thus has the visual appearance and / or the feel of a metal which has been machined, namely the visual appearance and / or the texture of a metal which has been subjected to shaping tools after casting or molding, and possibly rolling. This may for example be the visual appearance and / or the texture of a polished metal, a brushed metal, an embossed metal and / or an embossed metal.
[0069] Les motifs décoratifs comprenant, ou étant, des inscriptions, des signes, des logos ou des images ont ainsi des contours sont plus nets, et donc un aspect visuel moins flou, ainsi qu’un touché plus lisse. Decorative patterns comprising, or being, inscriptions, signs, logos or images thus have sharper contours, and therefore a less blurry visual appearance, as well as a smoother feel.
[0070] Le surfaçage peut être chimique, mais il est de préférence mécanique, ce qui présente l’avantage de procurer des résultats visuels et/ou au touché, plus proches ou identiques à ceux obtenu par des outils de façonnage de plaque de métal. [0070] The surfacing can be chemical, but it is preferably mechanical, which has the advantage of providing visual and / or feel results, closer to or identical to those obtained by metal plate shaping tools.
[0071] Le surfaçage mécanique peut comprendre, ou consister, par exemple en une étape de polissage, par exemple à l’aide d’un outil et d’un matériau de polissage, de brossage afin de créer de fines rayures, par exemple avec un abrasif plan ou une brosse, d’embossage, ou de gaufrage afin par exemple de conférer un aspect et/ou un touché du type fibres de carbones, ou une combinaison de ceux-ci. De préférence, le surfaçage ne comprend pas l’emploi d’un faisceau LASER, et en particulier ne comprend pas d’ablation LASER. The mechanical surfacing can comprise, or consist, for example in a polishing step, for example using a tool and a polishing material, brushing in order to create fine scratches, for example with a flat abrasive or a brush, embossing, or embossing in order for example to impart an appearance and / or a feel of the carbon fiber type, or a combination thereof. Preferably, the surfacing does not include the use of a LASER beam, and in particular does not include LASER ablation.
[0072] La méthode selon l’invention peut comprendre en outre une étape de recouvrement de la surface supérieure 15 de la couche 14 métallique après l’étape de surfaçage, et éventuellement également la ou les couches d’émail ou d’émaux s’ils sont présentes, par un vernis de protection, de préférence polymérique, avantageusement transparent, ne modifiant pas l’aspect visuel et/ou le touché de la surface supérieure 15 de la couche 14 métallique. The method according to the invention can further comprise a step of covering the upper surface 15 of the metal layer 14 after the step. surfacing, and optionally also the enamel layer (s) or enamels if they are present, with a protective varnish, preferably polymeric, advantageously transparent, not modifying the visual appearance and / or the feel of the upper surface 15 of the metal layer 14.
[0073] Le panneau 1 décoratif selon l’invention est de préférence obtenu selon la méthode selon l’invention décrite ci-dessus. [0073] The decorative panel 1 according to the invention is preferably obtained according to the method according to the invention described above.
[0074] Le panneau 1 décoratif selon l’invention comprend un support 2 en verre, tel que décrit précédemment, comprenant au moins une première surface 4, continue et sensiblement plane, de préférence également une seconde surface 5, continue et sensiblement plane, opposée à la première surface 4, de préférence également au moins un premier bord latéral 6, et éventuellement un second bord latéral 7, opposé au premier bord latéral 6, un bord avant 8 et un bord arrière 9, opposé au bord avant 8. The decorative panel 1 according to the invention comprises a glass support 2, as described above, comprising at least a first surface 4, continuous and substantially planar, preferably also a second surface 5, continuous and substantially planar, opposite at the first surface 4, preferably also at least a first lateral edge 6, and possibly a second lateral edge 7, opposite to the first lateral edge 6, a front edge 8 and a rear edge 9, opposite to the front edge 8.
[0075] L’une ou les deux surfaces 4, 5 et/ou un ou plusieurs bords 6, 7, 8, 9, sont recouvert(s) ou recouverte(s), totalement ou partiellement, d’un revêtement comprenant au moins une couche 14 faite d’un ou plusieurs métaux ou alliages de métaux, et dont le dépôt est obtenu par un transfert direct du ou des métaux ou alliages de métaux sur le support, à l’aide d’un faisceau LASER 12, de préférence pulsé, appliqué directement sur un ou plusieurs films 3 ou feuilles métalliques à l’état solide, à température ambiante et sous pression atmosphérique. La couche 14 métallique obtenue adhère directement à la ou les surfaces 4, 5 et/ou au(x) bord(s) 6, 7, 8, 9, sur laquelle ou lesquelles il est appliqué sans l’emploi d’une sous-couche d’accroche, d’une colle, d’un adhésif, ou d’un polymère quelconque. One or both surfaces 4, 5 and / or one or more edges 6, 7, 8, 9, are covered (s) or covered (s), totally or partially, with a coating comprising at least a layer 14 made of one or more metals or metal alloys, and the deposition of which is obtained by direct transfer of the metal (s) or metal alloy (s) to the support, using a LASER beam 12, preferably pulsed, applied directly to one or more films 3 or metal sheets in the solid state, at room temperature and under atmospheric pressure. The metallic layer 14 obtained adheres directly to the surface (s) 4, 5 and / or to the edge (s) 6, 7, 8, 9, on which or which it is applied without the use of a sub- bond layer, glue, adhesive, or any polymer.
[0076] Dans des modes de réalisation particuliers de l’invention, le panneau 1 décoratif comprend tout ou partie de l’une ou les deux surfaces 4, 5 et/ou d’un ou plusieurs des bords 6, 7, 8, 9 recouvert(e) d’un émail ou plusieurs émaux, disposés de façon superposée ou adjacente entre eux, la couche 14 métallique pouvant recouvrir, ou non, totalement ou partiellement, l’émail ou les émaux. Dans ces modes de réalisation, le revêtement du support 2 comprend la couche 14 métallique et la ou les couches d’émail ou d’émaux. In particular embodiments of the invention, the decorative panel 1 comprises all or part of one or both surfaces 4, 5 and / or one or more of the edges 6, 7, 8, 9 covered (e) with an enamel or more enamels, arranged superimposed or adjacent to one another, the metallic layer 14 possibly covering, or not, totally or partially, the enamel or the enamels. In these embodiments, the coating of the support 2 comprises the metallic layer 14 and the enamel or enamel layer (s).
[0077] La couche 14 métallique possède une épaisseur comprise entre 10 et 300 miti, et peut comprendre une multitude de couches minces homogènes d’un métal ou d’un alliage de métaux déterminé, ou de différents métaux et/ou de différents alliages de métaux, qui sont superposées, adjacents ou qui se chevauchent les unes par rapport aux autres. The metal layer 14 has a thickness of between 10 and 300 miti, and can comprise a multitude of homogeneous thin layers of a metal or of a specific metal alloy, or of different metals and / or different metal alloys, which are superimposed, adjacent or overlapping with respect to each other.
[0078] La couche 14 métallique forme, sur la ou les surfaces 4, 5 et/ou le ou les bords 6, 7, 8, 9, du support 2 en verre, un ou plusieurs motifs, superposés, adjacents, ou qui se chevauchent, les motifs étant des inscriptions, des signes, des logos ou des images. The metal layer 14 forms, on the surface (s) 4, 5 and / or the edge (s) 6, 7, 8, 9, of the glass support 2, one or more patterns, superimposed, adjacent, or which are overlap, the motifs being inscriptions, signs, logos or images.
[0079] La couche 14 métallique possède une surface supérieure 15, qui, après le dépôt direct d’un métal ou d’un ou plusieurs alliages de métaux, présentait un effet de pixellisation et/ou des irrégularités d’épaisseur, qui a été surfacée, afin d’obtenir l’aspect visuel et/ou tactile d’un métal qui a été usiné, qui semble avoir été obtenus par des outils de façonnage de plaque de métal. De préférence, il s’agit d’un aspect et/ou du touché d’un métal poli, d’un métal brossé, d’un métal gaufré ou d’un métal embossé, ou une combinaison de ceux-ci, de préférence obtenus par un surfaçage mécanique, par exemple un polissage, un brossage, un embossage ou un gaufrage. Ainsi, le ou les motifs décoratifs formés par la couche 14 métallique est plus net et possède un touché plus lisse. The metal layer 14 has an upper surface 15, which, after the direct deposition of a metal or one or more metal alloys, exhibited a pixelation effect and / or thickness irregularities, which was surfaced, in order to obtain the visual and / or tactile appearance of a metal which has been machined, which appears to have been obtained by metal plate shaping tools. Preferably, it is a look and / or feel of polished metal, brushed metal, embossed metal or embossed metal, or a combination thereof, preferably obtained by mechanical surfacing, for example polishing, brushing, embossing or embossing. Thus, the decorative pattern or patterns formed by the metallic layer 14 is sharper and has a smoother feel.
[0080] De préférence, le panneau 1 décoratif selon l’invention comprend en outre un vernis de protection recouvrant la surface supérieure 15 de la couche 14 métallique, avantageusement ne modifiant pas l’aspect visuel et/ou le touché de la surface supérieure 15 de la couche 14 métallique. Dans ce mode de réalisation le revêtement le revêtement du support 2 comprend la couche 14 métallique, la couche de vernis de protection, et éventuellement également la ou les couches d’émail ou d’émaux si elles sont présentes. Preferably, the decorative panel 1 according to the invention further comprises a protective varnish covering the upper surface 15 of the metallic layer 14, advantageously not modifying the visual appearance and / or the feel of the upper surface 15 of the metal layer 14. In this embodiment, the coating of the support 2 comprises the metallic layer 14, the protective varnish layer, and optionally also the enamel or enamel layer (s) if they are present.
[0081] Le panneau 1 décoratif selon l’invention peut comprendre une couche 14 métallique sur les deux surfaces 4 et 5 et/ou un ou plusieurs bords 6, 7, 8, 9 du support 2 en verre, ou bien l’une des surfaces 4 ou 5 ou l’un des bords 6, 7, 8, 9, est recouverte ou recouvert de la couche 14 métallique et l’autre surface 4 ou 5 ou le bord 6, 7, 8, 9 opposé ou adjacent, est recouverte ou recouvert d’une ou plusieurs peintures ou d’un ou plusieurs émaux colorés renforçant l’apparence visuel de la première surface 4 ou 5 comprenant la couche 14 métallique. [0082] De préférence, le panneau 1 de décoration selon l’invention est utilisé pour décorer un appareil électroménager, tel que par exemple un four ou un réfrigérateur, un dispositif de chauffage, par exemple un radiateur ou un chauffe serviette, ou pour décorer une pièce d’une habitation, comme par exemple une cuisine ou une salle de bain, ou pour décorer des meubles. The decorative panel 1 according to the invention may comprise a metal layer 14 on the two surfaces 4 and 5 and / or one or more edges 6, 7, 8, 9 of the glass support 2, or else one of the surfaces 4 or 5 or one of the edges 6, 7, 8, 9, is covered or covered with the metallic layer 14 and the other surface 4 or 5 or the opposite or adjacent edge 6, 7, 8, 9, is covered or covered with one or more paints or one or more colored enamels enhancing the visual appearance of the first surface 4 or 5 comprising the metallic layer 14. Preferably, the decorative panel 1 according to the invention is used to decorate a household appliance, such as for example an oven or a refrigerator, a heating device, for example a radiator or a towel warmer, or to decorate a room in a house, such as a kitchen or a bathroom, or to decorate furniture.

Claims

REVENDICATIONS
1 . Méthode de réalisation d’un panneau (1 ) décoratif, comprenant les étapes suivantes : 1. Method of making a decorative panel (1), comprising the following steps:
- prendre un support (2) en verre, comprenant au moins une première surface (4 ou 5), de préférence également une seconde surface (3 ou 4), opposée à ladite première surface (4 ou 5), et éventuellement également au moins un premier bord (6, 7, 8, 9), de préférence plusieurs bords (6, 7, 8, 9), - Take a glass support (2), comprising at least a first surface (4 or 5), preferably also a second surface (3 or 4), opposite to said first surface (4 or 5), and possibly also at least a first edge (6, 7, 8, 9), preferably several edges (6, 7, 8, 9),
- prendre un ou plusieurs films (3) métalliques solides, faits d’un ou plusieurs métaux ou alliages de métaux, - take one or more solid metal films (3), made of one or more metals or metal alloys,
- prendre une source LASER (13), apte à générer un faisceau LASER (12) pulsé, - take a LASER source (13), capable of generating a pulsed LASER beam (12),
- effectuer un dépôt métallique direct sur au moins ladite première surface (4 ou 5), en disposant ledit ou lesdits films (3) métalliques en face, à distance ou en contact, avec ladite au moins première surface (4, 5), entre ledit support (2) en verre et ladite source LASER (13), et en appliquant ledit faisceau LASER (12) sur ledit ou lesdits films (3) métalliques afin de transférer ledit ou lesdits métaux ou alliages de métaux directement sur ladite au moins première surface (4, 5), selon un motif déterminé, afin de former un revêtement comprenant une couche (14) métallique recouvrant tout ou partie de ladite au moins première surface (4, 5), ladite couche (14) métallique comprenant une surface supérieure (15), - Carry out a direct metal deposition on at least said first surface (4 or 5), by placing said metal film or films (3) opposite, at a distance or in contact, with said at least first surface (4, 5), between said glass support (2) and said LASER source (13), and by applying said LASER beam (12) on said metal film or films (3) in order to transfer said metal or metal alloys or metal alloys directly onto said at least first surface (4, 5), according to a determined pattern, in order to form a coating comprising a metallic layer (14) covering all or part of said at least first surface (4, 5), said metallic layer (14) comprising an upper surface (15),
- surfacer ladite surface supérieur (15) à l’aide de moyens de surfaçage, afin de modifier son état de surface, pour lui conférer l’aspect visuel et/ou le touché d’un métal qui a été usiné. - surfacing said upper surface (15) using surfacing means, in order to modify its surface condition, to give it the visual appearance and / or the feel of a metal which has been machined.
2. La méthode selon la revendication 1 , dans laquelle l’étape de surfaçage comprend une étape de polissage, de brossage, d’embossage, de gaufrage, ou une combinaison de ceux-ci. 2. The method of claim 1, wherein the surfacing step comprises a step of polishing, brushing, embossing, embossing, or a combination thereof.
3. La méthode selon l’une quelconque des revendications 1 ou 2, dans laquelle, l’étape de dépôt du ou desdits métaux ou alliages de métaux du ou des films (3) métalliques, directement sur la au moins première surface (4 ou 5) est répétée plusieurs fois, afin d’appliquer, sur ladite au moins première surface (4, 5), une multitude de couches faites d’un métal ou d’un alliage de métaux déterminé, ou de différents métaux ou différents alliages de métaux, lesdites couches pouvant se superposer, se chevaucher ou être adjacentes, et comporter des motifs pouvant être identiques ou différents entre lesdites couches. 3. The method according to any one of claims 1 or 2, wherein, the step of depositing said metal (s) or metal alloy (s) of the metal film (s) (3) directly on the at least first surface (4 or 5) is repeated several times, in order to apply, on said at least first surface (4, 5), a multitude of layers made of a particular metal or metal alloy, or of different metals or different alloys of metals, said layers possibly being superimpose, overlap or be adjacent, and include patterns that may be identical or different between said layers.
4. La méthode selon l’une quelconque des revendications précédentes, dans laquelle l’étape de dépôt du ou des métaux ou alliages de métaux du ou des films (3) métalliques est répétée afin de former une couche (14) métallique recouvrant tout ou partie de la seconde surface (4 ou 5) et/ou de plusieurs bords (6, 7, 8, 9) du support (2) en verre. 4. The method according to any one of the preceding claims, wherein the step of depositing the metal (s) or metal alloys from the metal film (s) (3) is repeated in order to form a metal layer (14) covering all or part of the second surface (4 or 5) and / or of several edges (6, 7, 8, 9) of the glass support (2).
5. La méthode selon l’une quelconque des revendications précédentes, dans laquelle le ou les films (3) métalliques sont déposés sur une surface d’un support de transfert (11 ), transparent au faisceau LASER (12), ladite surface étant disposée face à la au moins première surface (4 ou 5) et/ou audit au moins premier bord (6, 7, 8, 9) du support (2) à recouvrir. 5. The method according to any one of the preceding claims, in which the metallic film or films (3) are deposited on a surface of a transfer medium (11), transparent to the LASER beam (12), said surface being disposed facing the at least first surface (4 or 5) and / or said at least first edge (6, 7, 8, 9) of the support (2) to be covered.
6. La méthode selon l’une quelconque des revendications précédentes, comprenant en outre une étape préalable de recouvrir tout ou partie du support (2) en verre d’un émail ou d’émaux. 6. The method according to any one of the preceding claims, further comprising a preliminary step of covering all or part of the glass support (2) with enamel or enamels.
7. La méthode selon l’une quelconque des revendications précédentes, comprenant en outre une étape de prétraitement, effectuée avant l’étape de transfert du ou des métaux ou alliages de métaux, consistant en l’élimination des contaminants superficiels présents sur au moins la première et/ou la seconde surface (4, 5) et/ou sur le ou les bords (6, 7, 8, 9) du support (2) en verre, ou en une structuration de surface, en au moins en deux dimensions, de préférence en trois dimensions, de ladite ou lesdites surfaces (4, 5) et/ou dudit ou desdits bords (6, 7, 8, 9) du support (2) en verre. 7. The method according to any one of the preceding claims, further comprising a pretreatment step, carried out before the step of transferring the metal (s) or metal alloys, consisting in removing the surface contaminants present on at least the surface. first and / or second surface (4, 5) and / or on the edge (s) (6, 7, 8, 9) of the glass support (2), or in a surface pattern, in at least two dimensions , preferably in three dimensions, of said surface (s) (4, 5) and / or of said edge (s) (6, 7, 8, 9) of the glass support (2).
8. La méthode selon l’une quelconque des revendications précédentes, dans laquelle le panneau (1 ) décoratif est un panneau (1 ) d’habillage d’un appareil électroménager, d’un dispositif de chauffage, d’une pièce d’une habitation, ou pour décorer des meubles. 8. The method according to any one of the preceding claims, wherein the decorative panel (1) is a panel (1) covering a household appliance, a heating device, a room of a home, or to decorate furniture.
9. Panneau (1 ) décoratif comprenant un support (2) en verre comprenant au moins une première surface (4 ou 5), de préférence également une seconde surface (4 ou 5), opposée à ladite première surface (4 ou 5), et éventuellement également au moins un premier bord (6, 7, 8, 9), de préférence plusieurs bords (6, 7, 8, 9), l’une ou les deux surfaces (4, 5) et/ou un ou plusieurs bords (6, 7, 8, 9) étant recouvert(e)s, totalement ou partiellement, d’un revêtement comprenant au moins une couche (14) métallique, comprenant un ou plusieurs métaux ou alliages de métaux, déposés par un transfert direct à l’aide d’un faisceau (12) LASER, et formant un ou plusieurs motifs décoratifs, ladite couche (14) métallique possédant une surface supérieure (15), ayant été surfacée afin d’obtenir l’aspect visuel et/ou le touché d’un métal qui a été usiné. 9. Decorative panel (1) comprising a glass support (2) comprising at least a first surface (4 or 5), preferably also a second surface (4 or 5), opposite to said first surface (4 or 5), and optionally also at least one first edge (6, 7, 8, 9), preferably several edges (6, 7, 8, 9), one or both surfaces (4, 5) and / or one or more edges (6, 7, 8, 9) being covered, totally or partially, of a coating comprising at least one metallic layer (14), comprising one or more metals or metal alloys, deposited by direct transfer using a LASER beam (12), and forming one or more a plurality of decorative patterns, said metallic layer (14) having an upper surface (15), having been surfaced in order to obtain the visual appearance and / or the feel of a metal which has been machined.
10. Le panneau (1 ) décoratif selon la revendication 9, dans lequel l’aspect visuel et/ou le touché d’un métal usiné est choisi parmi l’aspect visuel et/ou le touché d’un métal poli, d’un métal brossé, d’un métal gaufré ou d’un métal embossé, ou une combinaison de ceux-ci. 10. The decorative panel (1) according to claim 9, wherein the visual appearance and / or the feel of a machined metal is chosen from the visual appearance and / or the feel of a polished metal, a brushed metal, an embossed metal or an embossed metal, or a combination thereof.
11. Le panneau (1 ) décoratif selon l’une quelconque des revendications 9 ou 10, dans lequel la couche (14) métallique comprend une multitude de couches d’un métal ou d’un alliage de métaux déterminé, ou de différents métaux et/ou de différents alliages de métaux, lesdites couches étant superposées, adjacentes ou se chevauchant les unes par rapport aux autres. 11. The decorative panel (1) according to any one of claims 9 or 10, wherein the metal layer (14) comprises a multitude of layers of a metal or a determined metal alloy, or of different metals and / or of different metal alloys, said layers being superimposed, adjacent or overlapping with respect to each other.
12. Le panneau (1 ) décoratif selon l’une quelconque des revendications 9 à 11 , dans lequel la surface supérieure (15) de la couche (14) métallique, est recouverte d’un vernis de protection ne modifiant pas l’aspect visuel et/ou le touché de ladite surface supérieure (15). 12. The decorative panel (1) according to any one of claims 9 to 11, wherein the upper surface (15) of the metal layer (14) is covered with a protective varnish which does not modify the visual appearance. and / or the feel of said upper surface (15).
13. Utilisation du panneau (1 ) décoratif selon l’une quelconque des revendications 9 à 12, pour décorer un appareil électroménager ou un dispositif de chauffage, pour décorer une pièce d’une habitation, ou pour décorer des meubles. 13. Use of the decorative panel (1) according to any one of claims 9 to 12, to decorate a household appliance or a heating device, to decorate a room in a dwelling, or to decorate furniture.
EP20728511.5A 2019-06-06 2020-06-02 Method for producing a decorative panel Withdrawn EP3980277A1 (en)

Priority Applications (1)

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DE20728511.5T DE20728511T1 (en) 2019-06-06 2020-06-02 Method of making a decorative panel

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FR1906028A FR3096929B1 (en) 2019-06-06 2019-06-06 Method of making a decorative panel
PCT/EP2020/065143 WO2020245083A1 (en) 2019-06-06 2020-06-02 Method for producing a decorative panel

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EP (1) EP3980277A1 (en)
KR (1) KR20210149834A (en)
CN (1) CN113993716A (en)
BR (1) BR112021022472A2 (en)
DE (1) DE20728511T1 (en)
FR (1) FR3096929B1 (en)
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CN1022470C (en) * 1991-10-29 1993-10-20 珠海经济特区光学产业有限公司 Decorating board with printed glass raster
DE19802298C2 (en) * 1998-01-22 2000-11-23 Daimler Chrysler Ag Process for achieving functional metal, ceramic or ceramic / metal layers on the inner wall of hollow bodies
FR2878844B1 (en) * 2004-12-06 2007-07-13 Saint Gobain DECORATED AND LAYERED STRUCTURE
US20070026205A1 (en) * 2005-08-01 2007-02-01 Vapor Technologies Inc. Article having patterned decorative coating
DE102006044936B4 (en) 2006-09-22 2008-08-07 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Process for the metallization of solar cells and its use
FI20070398A (en) * 2007-05-22 2008-11-23 Beneq Oy Infrared reflective glass
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ES2401622A1 (en) * 2011-09-26 2013-04-23 BSH Electrodomésticos España S.A. Method for manufacturing a domestic appliance panel
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DE102017120915A1 (en) * 2017-09-11 2019-03-14 Flachglas Wernberg Gmbh Process for producing safety glass with a sun and / or heat protection coating permeable to high-frequency radiation

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US20220219485A1 (en) 2022-07-14
WO2020245083A1 (en) 2020-12-10
BR112021022472A2 (en) 2022-01-04
FR3096929B1 (en) 2021-09-03
DE20728511T1 (en) 2021-04-01
FR3096929A1 (en) 2020-12-11
CN113993716A (en) 2022-01-28
MX2021014062A (en) 2021-12-10

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