Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B44—DECORATIVE ARTS
  • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
  • B44C5/00—Processes for producing special ornamental bodies
  • B44C5/04—Ornamental plaques, e.g. decorative panels, decorative veneers
  • B44C5/0461—Ornamental plaques, e.g. decorative panels, decorative veneers used as wall coverings
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
  • B05D5/06—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain multicolour or other optical effects
  • B05D5/067—Metallic effect
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
  • B05D5/06—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain multicolour or other optical effects
  • B05D5/067—Metallic effect
  • B05D5/068—Metallic effect achieved by multilayers
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B44—DECORATIVE ARTS
  • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
  • B44C3/00—Processes, not specifically provided for elsewhere, for producing ornamental structures
  • B44C3/02—Superimposing layers
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B44—DECORATIVE ARTS
  • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
  • B44C5/00—Processes for producing special ornamental bodies
  • B44C5/04—Ornamental plaques, e.g. decorative panels, decorative veneers
  • B44C5/0415—Ornamental plaques, e.g. decorative panels, decorative veneers containing metallic elements

Definitions

• the invention relates to a method of manufacturing decorative panels, usable as wall panels, furniture coverings, sanitary appliances, for example.
• the decorative panels thus obtained let appear in transparency, through the thickness of the support which in fact constitutes the upper layer of the panel, metallized parts or of similar appearance depending on the particles used, which seem to be intimately linked both to the support itself. same as the lacquer applied later and which, unlike the panels currently available on the market, in no case appear to be "added” on a painted base. Such an effect, of an aesthetic of very high quality has never been achieved so far.
• the invention also proposes, before applying the metallic or other powder suspended in solvent, to apply to one face of the transparent material a layer of a primary transparent varnish promoting good adhesion of the lacquer over the entire surface of the support, in particular through metallized or similar-looking parts.
• the invention can be applied to any transparent support material capable of receiving a layer of lacquer which adheres perfectly. It can thus be applied to glass, or also to transparent plastics, in particular methyl methacrylate, cellulose acetate etc.
• thermoformable plastic By choosing a thermoformable plastic, and of course provided that you use lacquers and solvents do not decompose at thermoforming temperature, objects of any desired shape can be obtained.
• methyl methacrylate known as "sanitary” the decorative panels according to the invention can in particular be thermoformed to obtain sanitary appliances such as baths, sinks, etc.
• sanitary fixtures metallic in appearance and of great aesthetic quality.
• the frosting is carried out by any suitable technique, for example with sandpaper.
• a metallic powder in fine suspension in a solvent is then applied to all or only part of the frosted surface, depending on the desired aesthetic effect.
• a stream of compressed air can be sent to the applied layer of solvent to, in the direction of the stream, cause the metallic powder in suspension to migrate throughout desired direction.
• lacquer any liquid product tinted with any suitable dye, which is easily applicable on the support and which, upon drying, provides a durable tinted layer on the support.
• suitable dye any suitable dye, which is easily applicable on the support and which, upon drying, provides a durable tinted layer on the support.
• Polyurethane lacquers, acrylic resins, vinyl resins, etc. are used in particular.
• the solvent used to apply the metal powder apart from of course that it must not attack the support material, must be chosen to be immiscible with the lacquer subsequently applied. Thanks to this characteristic, during the application of the lacquer, the latter, due to its immiscibility with the solvent, will "repel" the solvent punctually and may reach between the metallic particles the frosted surface of the support to adhere to it.
• metal powder powders of metal particles or metal oxide are used, and of particle size such that it remains in fine suspension in the solvent used. It is of course possible to use a mixture of metallic particles of different types.
• the invention provides for applying to the support, before metal powder, a layer of a transparent varnish called "primary", in particular a varnish consisting of a resin very fluid polyester with a single component such as polyester varnish sold under the brand "SIKKENS".
• the second embodiment of the invention differs from that described above by the fact that before the layer of metallic powder is applied to the transparent support a lacquer of any desired shade.
• the frosting can be carried out with sandpaper.
• lacquer can be used depending on its good adhesion to the transparent support used, for example polyurethane lacquers, acrylic resins or vinyl resins.
• a polyurethane lacquer is suitably diluted for its easy application in thin thickness.
• the thickness of the lacquer layer must be of the order of tens of microns, for reasons which will appear below.
• a first layer of a lacquer-immiscible solvent is then applied to all or part of the surface of the panel, then, before evaporation, a second layer of the same solvent in which metallic particles are in fine suspension.
• the solvent used must imperatively be immiscible with the lacquer so that it can somehow repel the lacquer or make "holes" in the lacquer at the places where it is applied, so that when the metallic powder is suspended in the same solvent will be applied later, it will appear through the thickness of the support transparent in places where the lacquer has been repelled. It is precisely so that the metallic particles can appear through the transparent material that the layer of lacquer applied in the first place must be very thin.
• the solvent used is advantageously a cellulose solvent.
• the lacquer used is an acrylic resin, for example a polyurethane solvent is used, and if the lacquer is a resin or vinyl ink, it is then possible to use either a cellulosic or polyurethane solvent.
• the solvent can be allowed to evaporate such that, or else it is possible, to modify the decorative appearance, send before evaporation of the solvent a stream of compressed air which migrates the metallic particles entrained by the solvent in the desired direction (s), the solvent always acting to "repel" the lacquer at the places where it arrives and let the metallic particles appear through the support material.
• the solvent is then allowed to evaporate and the lacquer to harden by drying.
• the panels thus obtained have a very good quality decorative appearance and can be used as is.
• lacquer and solvent are advantageously applied by spraying with an air gun or an "airless" gun.
• air gun or an "airless" gun.
• metal particles are used either metal particles or metal oxide particles, for example particles of aluminum, copper, gold, bronze etc. It is also possible to use a mixture of particles of different types.
• the particles used must be of very fine particle size, more precisely of sufficiently fine particle size so that they can be easily transported by the solvent without collecting or remaining at the location of the support where they are applied, but also of sufficient particle size to be able to remain in suspension in the solvent.
• the decorative panel obtained can then be used for any desired use.
• thermoformable support material a thermoformable support material
• the decorative panels according to the invention can then allow the manufacture of the most diverse objects of all shapes which can be obtained by thermoforming.
• the transparent support material is methyl methacrylate.
• the panels obtained can then be used as wall coverings, furniture coverings, etc.
• thermoforming all kinds of sanitary devices such as bath, sink, etc., which, thanks to their metallic decorative appearance, can be considered like very good quality items.
• the process according to the invention can also be applied to other plastic materials, for example on flexible sheets of transparent cellulose acetate.
• the decorative sheets obtained can then be used for the manufacture of lampshades.
• a layer of black acrylic paint with a thickness of about 20 microns is applied by spraying with a compressed air gun.
• a veil of cellulosic solvent is applied and immediately, that is to say before evaporation of the solvent, a layer of the same cellulosic solvent comprising in fine suspension particles of pale gold, by spraying with compressed air gun.
• a stream of compressed air is sent over the area covered with metallic powder in the solvent so as to spread and migrate the particles in certain directions.
• the solvent is then allowed to evaporate and the lacquer layer is dried.
• the panel is then placed in an oven at 30-35 ° C for 24 hours.
• the decorative panel obtained lets appear by transparency, through the thickness of the methyl methacrylate plate, a central metallic zone of gold color intimately mixed with zones of black color brought by the layer of lacquer.
• This panel was used for the thermoforming manufacture of a bathtub.

Landscapes

• Application Of Or Painting With Fluid Materials (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=9280598

Family Applications (1)

Country Status (4)

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Family Cites Families (13)

• 1982
  • 1982-12-28 FR FR8221947A patent/FR2538312B1/fr not_active Expired
• 1983
  • 1983-12-27 EP EP84900070A patent/EP0130195A1/de not_active Withdrawn
  • 1983-12-27 WO PCT/FR1983/000262 patent/WO1984002480A1/fr unknown
• 1984
  • 1984-08-24 US US06/644,461 patent/US4655985A/en not_active Expired - Fee Related

Non-Patent Citations (1)

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