EP3600909A1 - Garnitures d'aspect métallique pouvant être éclairées de manière sélective et leurs procédés de fabrication - Google Patents

Garnitures d'aspect métallique pouvant être éclairées de manière sélective et leurs procédés de fabrication

Info

Publication number
EP3600909A1
EP3600909A1 EP18740643.4A EP18740643A EP3600909A1 EP 3600909 A1 EP3600909 A1 EP 3600909A1 EP 18740643 A EP18740643 A EP 18740643A EP 3600909 A1 EP3600909 A1 EP 3600909A1
Authority
EP
European Patent Office
Prior art keywords
metallic
effect
layers
layer
substrate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP18740643.4A
Other languages
German (de)
English (en)
Inventor
Fernando Colon
Sergio PILES
Raul Martinez
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.)
SRG Global Liria SL
Original Assignee
SRG Global Liria SL
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 SRG Global Liria SL filed Critical SRG Global Liria SL
Priority claimed from PCT/IB2018/054160 external-priority patent/WO2018225029A1/fr
Publication of EP3600909A1 publication Critical patent/EP3600909A1/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44F—SPECIAL DESIGNS OR PICTURES
    • B44F1/00—Designs or pictures characterised by special or unusual light effects
    • B44F1/06—Designs or pictures characterised by special or unusual light effects produced by transmitted light, e.g. transparencies, imitations of glass paintings
    • B44F1/066—Designs or pictures characterised by special or unusual light effects produced by transmitted light, e.g. transparencies, imitations of glass paintings comprising at least two transparent elements, e.g. sheets, layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • B60Q3/50—Mounting arrangements
    • B60Q3/54—Lighting devices embedded in interior trim, e.g. in roof liners
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44F—SPECIAL DESIGNS OR PICTURES
    • B44F1/00—Designs or pictures characterised by special or unusual light effects
    • B44F1/06—Designs or pictures characterised by special or unusual light effects produced by transmitted light, e.g. transparencies, imitations of glass paintings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/0023—Digital printing methods characterised by the inks used
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C5/00—Processes for producing special ornamental bodies
    • B44C5/08—Leaded lights
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/02—Internal Trim mouldings ; Internal Ledges; Wall liners for passenger compartments; Roof liners
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/002—Priming paints
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for

Definitions

  • the present application generally relates to decorative trims and, more particularly, to selectively illuminable metallic looking trims and their methods of manufacture.
  • Decorative trims are applied to accent or enhance the visual appearance of an object.
  • vehicle interior and exterior components often have decorative trims.
  • light sources can be incorporated into decorative trims to generate a lighting effect.
  • Chrome plating is one example of a decorative trim that is often utilized due to its high gloss appearance. Chrome plating, however, can have a negative environmental impact, e.g., due to the use of hexavalent chromium baths. Chrome plating is also formed of one or more opaque metallic layers that do not allow light to pass through and thus it cannot be used in connection with back-lit lighting effects. Accordingly, while such decorative trims work well for their intended purpose, there remains a need for improvement in the relevant art.
  • a trim for an object comprises: a transparent or translucent substrate defining a top surface, an opaque layer applied to the top surface of the substrate, the opaque layer defining one or more apertures through which light can pass, and one or more translucent metallic-effect layers applied to a top surface of the opaque layer.
  • the one or more metallic-effect layers comprise one or more metallic-effect paint layers. In other embodiments, the one or more metallic-effect layers comprise one or more digitally printed metallic-effect material layers.
  • the one or more metallic-effect layers comprise only one or more base coat layers of metallic-effect paint.
  • the one or more metallic-effect layers comprise (i) a translucent primer layer applied to the top surface of the opaque layer and portions of the substrate corresponding to the one or more apertures and (ii) one or more translucent base coat paint layers of metallic-effect paint applied to a top surface of the primer layer.
  • the one or more metallic-effect layers further comprise a transparent or translucent top coat layer applied to a top surface of the one or more base coat paint layers, wherein the top coat layer protects and enhances a metallic-effect of the one or more metallic-effect layers.
  • At least one of the primer layer and the top coat layer comprises metallic particles to further enhance the metallic-effect of the one or more metallic-effect layers.
  • the top coat layer is at least one of tinted and colored to further enhance the metallic-effect of the one or more metallic-effect layers.
  • the trim is a selectively illuminable trim that further comprises a light source arranged beneath a bottom surface of the substrate, the light source being configured to output light through the substrate, the one or more apertures defined by the opaque layer, and the one or more metallic-effect layers.
  • the trim further comprises a light guide arranged between the light source and the bottom surface of the substrate, the light guide being configured to distribute the light output from the light source.
  • the trim for an object.
  • the trim comprises: a transparent or translucent substrate defining a top surface and a bottom surface, an opaque layer applied to the bottom surface of the substrate, the opaque layer defining one or more apertures through which light can pass, and one or more translucent metallic-effect layers applied to the top surface of the substrate.
  • the one or more metallic-effect layers comprise one or more metallic-effect paint layers. In other embodiments, the one or more metallic-effect layers comprise one or more digitally printed metallic-effect material layers.
  • the one or more metallic-effect layers comprise only one or more base coat layers of metallic-effect paint.
  • the one or more metallic-effect layers comprise (i) a translucent primer layer applied to the top surface of the substrate and (ii) one or more translucent base coat paint layers of metallic-effect paint applied to a top surface of the primer layer.
  • the one or more metallic-effect layers further comprise a transparent or translucent top coat layer applied to a top surface of the one or more base coat paint layers, wherein the top coat layer protects and enhances a metallic-effect of the one or more metallic-effect layers.
  • At least one of the primer layer and the top coat layer comprises metallic particles to further enhance the metallic-effect of the one or more metallic-effect layers.
  • the top coat layer is at least one of tinted and colored to further enhance the metallic-effect of the one or more metallic-effect layers.
  • the trim is a selectively illuminable trim that further comprises a light source arranged beneath a bottom surface of the substrate, the light source being configured to output light through the one or more apertures defined by the opaque layer, the substrate, and the one or more metallic-effect layers.
  • the trim further comprises a light guide arranged between (i) the light source and (ii) the bottom surface of the substrate and the opaque layer, the light guide being configured to distribute the light output from the light source.
  • a method of manufacturing a trim for an object comprises: providing a transparent or translucent substrate defining a top surface and a bottom surface, applying an opaque layer to one of the top surface of the substrate and the bottom surface of the substrate, the opaque layer defining one or more apertures through which light can pass, and applying one or more translucent metallic-effect layers to one of (i) a top surface of the opaque layer when the opaque layer is applied to the top surface of the substrate and (ii) the top surface of the substrate when the opaque layer is applied to the bottom surface of the substrate.
  • applying the one or more metallic-effect layers comprises applying one or more layers of metallic-effect paint. In other embodiments, applying the one or more metallic-effect layers comprises digitally printing one or more layers of a metallic-effect material. In some embodiments, the one or more metallic-effect layers comprise only one or more base coat layers of metallic-effect paint.
  • applying the one or more metallic-effect layers comprises (i) applying a translucent primer layer applied to the top surface of the opaque layer and portions of the substrate corresponding to the one or more apertures and (ii) applying one or more translucent base coat paint layers of metallic-effect paint applied to a top surface of the primer layer.
  • the method further comprises applying a transparent or translucent top coat layer to a top surface of the one or more base coat paint layers, wherein the top coat layer protects and enhances a metallic-effect of the one or more metallic-effect layers.
  • applying the opaque layer further comprises: applying an initial opaque layer that does not define the one or more apertures, and removing portions of the initial opaque layer corresponding to the one or more apertures and obtain the opaque layer.
  • applying the initial opaque layer comprises spraying an opaque primer and curing the sprayed opaque primer to obtain the initial opaque layer, and wherein removing portions of the initial opaque layer comprises laser etching the initial opaque layer.
  • applying the opaque layer further comprises: applying a temporary mask layer to the one of the top surface and the bottom surface of the substrate, applying an initial opaque layer by spraying an opaque primer over the one of the top surface and the bottom surface of the substrate and the temporary mask layer, and removing the temporary mask layer and portions of the initial opaque layer associated therewith to obtain the opaque layer.
  • applying the opaque layer comprises digitally printing an opaque material to portions of the top surface of the substrate.
  • the method further comprises injection or compression molding, thermoforming, or additive manufacturing a plastic material to form the substrate.
  • the trim is a selectively illuminable trim and the method further comprises: arranging a light source beneath the bottom surface of the substrate, the light source being configured to output light through the substrate, the one or more apertures defined by the opaque layer, and the one or more metallic-effect layers, and packaging the light source and the selectively illuminable trim into a single integrated module.
  • a method of manufacturing a trim for an object comprises: providing a transparent or translucent substrate defining a top surface, applying an opaque layer to the top surface of the substrate, the opaque layer defining one or more apertures through which light can pass, and applying one or more translucent metallic-effect layers to a top surface of the opaque layer.
  • applying the one or more metallic-effect layers comprises applying one or more layers of metallic-effect paint. In other embodiments, applying the one or more metallic-effect layers comprises digitally printing one or more layers of a metallic-effect material.
  • the one or more metallic-effect layers comprise only one or more base coat layers of metallic-effect paint.
  • applying the one or more metallic-effect layers comprises (i) applying a translucent primer layer applied to the top surface of the opaque layer and portions of the substrate corresponding to the one or more apertures and (ii) applying one or more translucent base coat paint layers of metallic-effect paint applied to a top surface of the primer layer.
  • the method further comprises applying a transparent or translucent top coat layer to a top surface of the one or more base coat paint layers, wherein the top coat layer protects and enhances a metallic-effect of the one or more metallic-effect layers.
  • applying the opaque layer further comprises: applying an initial opaque layer that does not define the one or more apertures, and removing portions of the initial opaque layer corresponding to the one or more apertures and obtain the opaque layer.
  • applying the initial opaque layer comprises spraying an opaque primer and curing the sprayed opaque primer to obtain the initial opaque layer.
  • removing portions of the initial opaque layer comprises laser etching the initial opaque layer.
  • applying the opaque layer further comprises: applying a temporary mask layer to the top surface of the substrate, applying an initial opaque layer by spraying an opaque primer over the top surface of the substrate and the temporary mask layer, and removing the temporary mask layer and portions of the initial opaque layer associated therewith to obtain the opaque layer.
  • applying the opaque layer comprises digitally printing an opaque material to portions of the top surface of the substrate.
  • the method further comprises injection or compression molding, thermoforming, or additive manufacturing a plastic material to form the substrate.
  • the trim is a selectively illuminable trim and the method further comprises arranging a light source beneath a bottom surface of the substrate, the light source being configured to output light through the substrate, the one or more apertures defined by the opaque layer, and the one or more metallic-effect layers.
  • the method further comprises arranging a light guide between the light source and the bottom surface of the substrate, the light guide being configured to distribute the light output from the light source.
  • the method further comprises packaging the light source and the selectively illuminable trim into a single integrated module.
  • a method of manufacturing a trim for an object comprises: providing a transparent or translucent substrate defining a top surface and a bottom surface, applying an opaque layer to the bottom surface of the substrate, the opaque layer defining one or more apertures through which light can pass, and applying one or more translucent metallic-effect layers to the top surface of the substrate.
  • applying the one or more metallic-effect layers comprises applying one or more layers of metallic-effect paint. In other embodiments, applying the one or more metallic-effect layers comprises digitally printing one or more layers of a metallic-effect material.
  • the one or more metallic-effect layers comprise only one or more base coat layers of metallic-effect paint.
  • applying the one or more metallic-effect layers comprises (i) applying a translucent primer layer applied to the top surface of the substrate and (ii) applying one or more translucent base coat paint layers of metallic-effect paint applied to a top surface of the primer layer.
  • the method further comprises applying a transparent or translucent top coat layer to a top surface of the one or more base coat paint layers, wherein the top coat layer protects and enhances a metallic-effect of the one or more metallic-effect layers.
  • applying the opaque layer further comprises: applying an initial opaque layer that does not define the one or more apertures, and removing portions of the initial opaque layer corresponding to the one or more apertures and obtain the opaque layer.
  • applying the initial opaque layer comprises spraying an opaque primer and curing the sprayed opaque primer to obtain the initial opaque layer.
  • removing portions of the initial opaque layer comprises laser etching the initial opaque layer.
  • applying the opaque layer further comprises: applying a temporary mask layer to the bottom surface of the substrate, applying an initial opaque layer by spraying an opaque primer over the bottom surface of the substrate and the temporary mask layer, and removing the temporary mask layer and portions of the initial opaque layer associated therewith to obtain the opaque layer.
  • applying the opaque layer comprises digitally printing an opaque material to portions of the top surface of the substrate.
  • the method further comprises injection or compression molding, thermoforming, or additive manufacturing a plastic material to form the substrate.
  • the trim is a selectively illuminable trim and the method further comprises arranging a light source beneath a bottom surface of the substrate, the light source being configured to output light through the substrate, the one or more apertures defined by the opaque layer, and the one or more metallic-effect layers. In some embodiments, the method further comprises arranging a light guide between the light source and the bottom surface of the substrate, the light guide being configured to distribute the light output from the light source. In some embodiments, the method further comprises packaging the light source and the selectively illuminable trim into a single integrated module.
  • FIGS. 1 A-1 B are cross-sectional views of a first embodiment of a selectively illuminable trim according to the principles of the present disclosure for two different user viewing angles;
  • FIG. 2 is a flow diagram of a method of manufacturing the first embodiment of the selectively illuminable trim according to the principles of the present disclosure
  • FIGS. 3A-3B are cross-sectional views of a second embodiment of a selectively illuminable trim according to the principles of the present disclosure for two different user viewing angles;
  • FIGS. 4A-4B are cross-sectional views of alternate first and second embodiments of a selectively illuminable trim according to the principles of the present disclosure.
  • FIG. 5 is a flow diagram of a method of manufacturing the second embodiment of the selectively illuminable trim according to the principles of the present disclosure.
  • chrome plating is formed of one or more opaque metallic layers that do not allow light to pass through, which makes it unusable for decorative trim having back-lit lighting effects. Chrome plating also attenuates radar transmission. Accordingly, improved selectively illuminable metallic looking trims and their methods of manufacture are presented.
  • metallic looking trims comprising multiple stacked layers along with a light source and an optional light guide are packaged together to form single integrated modules.
  • these trims utilize a metallic-effect paint and an opaque back layer to achieve a metallic looking component that is aesthetically pleasing as chrome plating.
  • these trims utilize digital printing to deposit or apply a metallic-effect layer instead of the metallic-effect paint.
  • a non-metallic effect paint can be utilized in lieu of a metallic-effect paint.
  • a matte finished paint can be utilized.
  • Traditional painting techniques e.g. roll, brush, or spay
  • vacuum deposition or electro-static e.g. powder coating
  • multiple application techniques can be used.
  • the opaque back layer can be applied with spraying.
  • an opaque layer is deposited on a top surface of a substrate, thereby positioning it nearer to a viewing user's eyes and creating a crisper image with less distortion, such as when viewed at an angle.
  • the opaque layer is deposited on a bottom surface of the substrate, thereby positioning it further from the viewing user's eyes and creating a potentially less crisp image with greater distortion, such as when viewed at an angle.
  • This second embodiment has advantages from a processing standpoint because the opaque layer needs only to have a necessary level of adherence with the bottom surface of the substrate. These processing advantages can result in decreased costs, which could more than offset any potential distortion when viewing.
  • the amount of distortion depends on the thickness of the substrate and the type of light source. Different levels of distortion may be deemed acceptable for different applications.
  • the module 100 comprises a metallic looking trim stack 104 formed of multiple stacked layers.
  • a transparent or translucent substrate 108 forms a base of the trim 104. Details of the formation of the substrate 108 are described in detail below in reference to FIG. 2.
  • Non-limiting examples of the substrate 108 include plastic or polymer materials, such as polycarbonates (PC), polymethyl methacrylates (PMMA), acrylonitrile butadiene styrenes (ABS), styrene acrylics, styrene acrylonitrile polymers, polyamides, and combinations thereof.
  • the substrate 108 could be an interior component (a dash assembly, a center console assembly, a multimedia or infotainment unit assembly, a door trim panel, etc.) or an exterior body component (front or side grille assemblies, bumper or fender accents, head or taillight accents, a trunk lid finisher, etc.). It will be appreciated that the systems and methods described herein are not limited to automotive applications and could be applicable to decorative trims for non-automotive applications (appliances and consumer goods, railway, motorbikes, aerospace, etc.).
  • An opaque layer 1 12 is applied to a top surface of the substrate 108. Details of the application of the opaque layer 1 12 are described in detail below with reference to FIG. 2.
  • Non-limiting examples of the opaque layer 1 12 comprise epoxy-based, polyurethane-based, and acrylic-based curable wet paints having opaque color pigments and combinations thereof.
  • the opaque layer 1 12 could alternatively be digitally printed.
  • the opaque layer 1 12 defines one or more gaps or apertures 1 16 through which light is able to pass.
  • the one or more apertures 1 16 correspond to a designed lighting accent effect, such as, for example, an accent, logo, indicia, icon, motif, pattern, button, or other similar accent for the object associated with the trim.
  • a translucent primer layer 120 is optionally applied to a top surface of the opaque layer 1 12 as well as to the top surface of the substrate 108 in areas corresponding to the one or more apertures 1 16. Details of the application of the primer layer 120 are described in detail below with reference to FIG. 2.
  • Non-limiting examples of the primer layer 120 include epoxy-based, polyurethane-based, and acrylic-based curable wet paints that are transparent or translucent and combinations thereof.
  • One or more translucent metallic-effect layers 124 are applied to a top surface of the base coat layer 120 (or to the opaque layer 1 12 and portions of the substrate 108 in areas corresponding to the one or more apertures 1 16 when no primer layer 120 is applied).
  • two or more paint layers could achieve the optimal aesthetics (base coat layer 120 + single metallic-effect paint layer 124, single primer layer 120 + two metallic-effect paint layers 124, two metallic-effect paint layers 124 and no primer layer 120, etc.).
  • the metallic-effect layers(s) 124 could be applied via digital printing. Details of the application of the metallic-effect layer 124 are described in detail below with reference to FIG. 2.
  • the metallic-effect layer 124 is translucent because it is formed of a paint or printed material comprising elements that are translucent (i.e., at least partially light- transmissive) such as, but not limited to, transition metals, post-transition metals, metalloids, and combinations thereof (e.g., alloys, such as oxides and oxide alloys).
  • the metallic-effect paint could be a paint solution comprising flakes of one or more of the elements described above. It will be appreciated that metallic flakes or similar materials could also be included in the primer layer 120 to further enhance the metallic-effect.
  • the thickness of the metallic-effect paint layer 124 should be such that it remains at least translucent when illuminated by back-lighting while also looking metallic when not illuminated.
  • the transluceny of a metallic layer could also be affected by the chemical composition of the layer and dispersion of elements as reflected.
  • the metallic-effect paint layer 124 could also comprise multiple layers of a single metallic-effect paint or different metallic-effect paints applied in various stages to achieve the desired appearance and translucency (i.e., desired optical properties). For example, FIG.
  • 4A illustrates one configuration 400 of the trim stack 104 that only requires a single metallic-effect layer 124 of one or more base coat layers of metallic-effect paint (and no primer layer 120), along with optional top coat layer 128 to achieve the optimal aesthetics, thereby saving costs and reducing complexity.
  • digital printing may be utilized as an alternative to metallic-effect paint.
  • one or more metallic-effect layers can be digitally printed onto the substrate 108, thereby eliminating the need for the primer layer 120.
  • the optional top coat layer 128 could be applied to a top surface of the metallic-effect layer 124. Details of the application of the optional top coat layer 128 are described in detail below with reference to FIG. 2. Non-limiting examples of the top coat layer 128 include epoxy-based, polyurethane-based, and acrylic-based curable wet paints that are transparent or translucent and combinations thereof.
  • the optional top coat layer 128 could be applied to both protect the metallic-effect layer 124 (e.g., from chipping, stripping, or scratching) and/or to further enhance the appearance of the metallic-effect layer 124 (e.g., by enhancing its glossy appearance). It will be appreciated that the top coat layer 128 could include metallic flakes or similar materials to further enhance the metallic- effect.
  • top coat layer 128 could be tinted and/or colored to further enhance the metallic-effect.
  • Non-limiting examples of this include a blue metallic-effect, a copper metallic-effect, and a bronze metallic-effect, but any tinting and/or coloring combinations could be utilized.
  • the various upper layers 1 12, 120, 124, and 128 are shown to have approximately the same thickness, it will be appreciated that their actual thicknesses could widely vary and, in most cases, will be substantially less than the thickness of the substrate 108.
  • the primer layer 120 could have a thickness of 15 microns
  • the metallic-effect layer 124 could have a thickness of 1 -3 microns
  • the top coat layer 128 could have a thickness of 20- 22 microns. This is much thinner compared to a standard paint process, where a primer layer has a thickness of 20-25 microns, a base coat paint layer has a thickness of 12-16 microns, and a top coat layer has a thickness of 30-35 microns.
  • the primer layer 120 could have a thickness of 3-30 microns
  • the metallic-effect layer 124 could have a thickness of 1 -6 microns
  • the top coat layer 128 could have a thickness of 10-50 microns.
  • the metallic-effect paint layer 124 still has a thickness that is substantially thinner than conventional paint processes.
  • the single integrated module 100 further comprises a light source 132 (e.g., a light-emitting diode (LED), organic LED (OLED), optical fiber, electroluminescent, or a similar device, such as a laser light source) and an optional light guide 136 for directing, focusing, or distributing the light generated from the light source 132 through the substrate 108 and the one or more apertures 1 16 to form a visible field 140.
  • a light source 132 e.g., a light-emitting diode (LED), organic LED (OLED), optical fiber, electroluminescent, or a similar device, such as a laser light source
  • an optional light guide 136 for directing, focusing, or distributing the light generated from the light source 132 through the substrate 108 and the one or more apertures 1 16 to form a visible field 140.
  • Reference 144 represents a focal or viewing angle of a viewing user. As shown in FIG. 1A, from a straight-on viewing angle, there is no distortion of the visible field
  • the perceived width 152 of the viewing user 144 is only slightly larger than the actual width of the visible field 140. The viewing user 144, therefore, should still see a crisp, clear image as intended when back-lit by the light source 132 and should see a glossy, metal looking layer when not back-lit by the light source 132.
  • the transparent or translucent substrate is obtained.
  • the substrate 108 could be formed, for example, using any suitable plastic or polymer processing technique including, but not limited to, injection molding, extrusion, compression molding, thermoforming, and additive manufacturing (e.g., three-dimensional (3D) printing).
  • suitable plastic or polymer processing technique including, but not limited to, injection molding, extrusion, compression molding, thermoforming, and additive manufacturing (e.g., three-dimensional (3D) printing).
  • the substrate 108 include plastic or polymer materials, such as PC, PMMA, ABS, styrene acrylics, styrene acrylonitrile polymers, polyamides, and combinations thereof.
  • the substrate is a plastic interior component or exterior body component of a vehicle as previously described herein.
  • the opaque layer 1 12 is applied to the top surface of the substrate 108.
  • the opaque layer 1 12 is applied spraying an opaque primer, which is then cured to form an initial opaque layer. Portions of the initial opaque layer corresponding to the one or more apertures are then removed (e.g., stripped away) to obtain the opaque layer. For example, laser etching could be utilized to remove the portions of the initial opaque layer.
  • a temporary mask layer is initially applied to the top surface of the substrate 108. The temporary mask layer corresponds to the one or more apertures 1 16 defined by the opaque layer 1 12. This temporary mask layer could be a tape or another adhesive or a rigid mask device.
  • an opaque primer is sprayed over the substrate 108 and the temporary mask layer to form an initial opaque layer.
  • the temporary mask layer is then removed, thereby removing portions of the initial opaque layer corresponding to the one or more apertures 1 16 to obtain the opaque layer 1 12.
  • the opaque layer 1 12 comprise epoxy-based, polyurethane-based, and acrylic-based curable wet paints having opaque color pigments and combinations thereof.
  • the opaque layer 1 12 is an opaque paint that is deposited using a digital printing process, thereby avoiding the need of using (i) a posterior laser etching process to define the one or more apertures 1 16 or (ii) using a mask to avoid the deposition of the opaque layer 1 12 and form the one or more apertures 1 16.
  • the translucent primer layer 120 is applied to a top surface of the opaque layer 1 12 and to the substrate 108 in areas corresponding to the one or more apertures 1 16 defined by the opaque layer 1 12.
  • the application of the primer layer 120 is such that it defines a substantially flat or planar top surface (e.g., flush), while also having an uneven thickness (i.e., thicker in regions corresponding to the one or more apertures 1 16 and less thick in other regions).
  • the primer layer 120 is applied by spraying a translucent coat, which is then cured to form the primer layer 120.
  • non-limiting examples of the primer layer 120 include epoxy-based, polyurethane-based, and acrylic-based curable wet paints that are transparent or translucent and combinations thereof.
  • the translucent metallic-effect layer 124 is applied to the top surface of the base coat layer 120.
  • the metallic-effect layer 124 is applied using any suitable painting or printing processes such as, but not limited to, spraying, brushing, rolling, and digital printing, as well as vacuum processes such as physical vapor deposition (PVD) and chemical vapor deposition (CVD) or electro-static deposition (e.g. powder coating).
  • the paint solution comprises elements that are translucent (i.e., at least partially light-transmissive) such as, but not limited to, transition metals, post-transition metals, metalloids, and combinations thereof (e.g., alloys, such as oxides and oxide alloys).
  • a metallic-effect paint solution could comprise flakes of one or more of the elements described above.
  • the thickness of a metallic-effect paint layer 124 should be such that it remains at least translucent when illuminated by back-lighting while also looking metallic when not illuminated. It will also be appreciated that multiple layers of a single metallic-effect paint or multiple layers of different metallic effect paints could be applied in different stages to form a metallic- effect paint layer 124.
  • the optional transparent or translucent top coat layer 128 is applied to a top surface of the metallic-effect layer 124. Similar to the primer layer 120, in one exemplary embodiment, the top coat layer 128 is applied by spraying a transparent or translucent coat, which is then cured to form the top coat layer 128. As previously mentioned, non-limiting examples of the top coat layer 128 include epoxy-based, polyurethane-based, and acrylic-based curable wet paints that are transparent or translucent and combinations thereof. Potential benefits of providing the top coat layer 128 include protecting the metallic-effect layer 124 from weathering or damage (chipping, scratching, etc.) and/or enhancing the appearance (e.g., glossiness) of the metallic-effect layer 124.
  • the light source 132 and the optional light guide 136 are arranged beneath the bottom surface of the substrate 108.
  • the trim stack 104 and the light source 132 (and optionally, the light guide 136) are assembled or packaged into the single integrated module 100. The method 200 then ends.
  • the module 300 comprises a metallic looking trim stack 304 formed of multiple stacked layers.
  • the trim stack 304 comprises a transparent or translucent substrate 308 having an opaque layer 312 applied to a bottom surface of the substrate 308, with the opaque layer 312 defining one or more apertures 316.
  • the trim stack 304 further comprises an optional translucent primer layer 320, a translucent metallic-effect layer 324, and an optional transparent or translucent top coat layer 328 applied sequentially to a top surface of the substrate 308.
  • 4B illustrates one configuration 450 of the trim stack 304 that only requires a single metallic-effect layer 324 (and no primer layer 320), along with optional top coat layer 328 to achieve the optimal aesthetics, thereby saving costs and reducing complexity.
  • these layers 308-328 can be applied or formed from the same or similar materials and using the same or similar methods as previously described referencing the layers 108-128 of FIGS. 1A-1 B. The same goes for the light source 332 and optional light guide 336 and the related description of light source 132 and optional light guide 136.
  • the various upper layers 312, 320, 324, and 328 are shown to have approximately the same thickness, it will be appreciated that their actual thicknesses could widely vary and, in most cases, will be substantially less than the thickness of the substrate 308.
  • the primer layer 320 could have a thickness of 15 microns
  • the metallic-effect layer 324 could have a thickness of 1 -3 microns
  • the top coat layer 328 could have a thickness of 20- 22 microns. This is much thinner compared to a standard paint process, where a primer layer has a thickness of 20-25 microns, a base coat paint layer has a thickness of 12-16 microns, and a top coat layer has a thickness of 30-35 microns.
  • the primer layer 320 could have a thickness of 3-30 microns
  • the metallic-effect layer 324 could have a thickness of 1 -6 microns
  • the top coat layer 328 could have a thickness of 10-50 microns.
  • the metallic-effect paint layer 324 still has a thickness that is substantially thinner than conventional paint processes.
  • digital printing may be utilized as an alternative to metallic-effect paint. Specifically, one or more metallic- effect layers can be digitally printed onto the substrate 308, thereby eliminating the need for the primer layer 320.
  • modules 100 and 300 The primary difference between modules 100 and 300 is that the opaque layer 312 is applied to the bottom surface of the substrate 308 in module 300. There could also an optional transparent or translucent bottom coat layer 318 applied to the bottom surface of the substrate 308 in the regions corresponding to the one or more apertures 316 such that the bottom surface (B-side) of the trim stack 304 is flush.
  • This bottom coat layer 318 could be the same or similar material as optional primer layer 320 and/or optional top coat layer 328 and could be applied using the same or similar processes (e.g., masking).
  • FIG. 3A from a straight-on viewing angle (see reference 344, representing a viewing user 344), there is no distortion of a visible field 340. In other words, the perceived width 348 of the viewing user 344 is equal to or approximately equal to the actual width of the visible field 340.
  • the perceived width 352 of the viewing user 344 is substantially larger than the actual width of the visible field 340.
  • the viewing user 144 therefore, will see a less crisp (i.e., slightly distorted) image when back-lit by the light source 332, while still seeing a glossy, metal looking layer when not back-lit by the light source 332.
  • One benefit of the configuration of module 300 is easier processing or formation.
  • the opaque layer 312 only has to be designed or selected for adherence to the substrate 308 and not to both the substrate 308 and the primer layer 320 (as is required for opaque layer 1 12 with respect to the substrate 108 and base coat layer 120 in FIGS. 1A-1 B).
  • FIG. 5 a flow diagram of a method 500 of manufacturing the second embodiment of the single integrated module 300 is illustrated.
  • the same or similar processes or methods described above with respect to FIGS. 1A-1 B, FIG. 2, and FIG. 4A could be utilized in the formation of the module 300 of FIGS. 3A-3B, FIG. 4B, and method 500.
  • the transparent or translucent substrate 308 is obtained.
  • the opaque layer 312 defining the one or more apertures 316 is applied to the back surface of the substrate 308.
  • the opaque layer 312 could be applied after the application of the optional translucent primer layer 320, the translucent metallic-effect layer 324, and the optional transparent or translucent top coat layer 328, or somewhere in between the application of these layers 320-328, but before steps 528 and 532.
  • the primer layer 320 is applied to the top surface of the substrate 308.
  • the metallic-effect layer 324 is applied to the top surface of the primer layer 320 using conventional means (e.g. spraying, brushing, rolling, and digital printing), as well as vacuum processes such as physical vapor deposition (PVD) and chemical vapor deposition (CVD) or electro-static deposition (e.g. powder coating).
  • the top coat layer 328 is applied to the top surface of the metallic-effect layer 324.
  • the light source 332 and the optional light guide 336 are arranged beneath the bottom surface of the trim stack 304.
  • the trim stack 304 and the light source 332 (and optionally, the light guide 336) are assembled or packaged into the single integrated module 300. The method 500 then ends.
  • Example embodiments are provided so that this disclosure will be thorough, and will fully convey the scope to those who are skilled in the art. Numerous specific details are set forth such as examples of specific components, devices, and methods, to provide a thorough understanding of embodiments of the present disclosure. It will be apparent to those skilled in the art that specific details need not be employed, that example embodiments may be embodied in many different forms and that neither should be construed to limit the scope of the disclosure. In some example embodiments, well-known procedures, well-known device structures, and well-known technologies are not described in detail.
  • first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as “first,” “second,” and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

Abstract

L'invention concerne des garnitures d'objets d'aspect métallique comprenant un substrat transparent ou translucide définissant des surfaces supérieure et inférieure, une couche opaque appliquée sur l'une des surfaces supérieure et inférieure du substrat, la couche opaque définissant une ou plusieurs ouvertures à travers lesquelles la lumière peut passer et une ou plusieurs couches à effet métallique translucides appliquées sur une surface supérieure de la couche opaque lorsque la couche opaque est appliquée sur la surface supérieure du substrat ou sur la surface supérieure du substrat lorsque la couche opaque est appliquée sur la surface inférieure du substrat. La ou les couches à effet métallique comprennent une ou plusieurs peintures à effet métallique ou une ou plusieurs couches de matériau métallique imprimé numériquement. Une source de lumière est disposée en dessous de la surface inférieure du substrat et génère de la lumière qui passe à travers le substrat, la ou les ouvertures et la ou les couches à effet métallique.
EP18740643.4A 2017-06-09 2018-06-08 Garnitures d'aspect métallique pouvant être éclairées de manière sélective et leurs procédés de fabrication Pending EP3600909A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ES201730785A ES2693388A1 (es) 2017-06-09 2017-06-09 Molduras de apariencia metálica traslúcidas a la luz y enmascaradas para iluminación selectiva
ES201830556A ES2706652R1 (es) 2017-06-09 2018-06-07 Embellecedores de aspecto metalico que pueden iluminarse selectivamente y sus metodos de fabricacion
PCT/IB2018/054160 WO2018225029A1 (fr) 2017-06-09 2018-06-08 Garnitures d'aspect métallique pouvant être éclairées de manière sélective et leurs procédés de fabrication

Publications (1)

Publication Number Publication Date
EP3600909A1 true EP3600909A1 (fr) 2020-02-05

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EP18740643.4A Pending EP3600909A1 (fr) 2017-06-09 2018-06-08 Garnitures d'aspect métallique pouvant être éclairées de manière sélective et leurs procédés de fabrication

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EP (1) EP3600909A1 (fr)
JP (2) JP2020525326A (fr)
KR (2) KR20200036842A (fr)
CN (1) CN111065527A (fr)
ES (2) ES2693388A1 (fr)

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JP2005319585A (ja) * 2004-05-06 2005-11-17 Nissha Printing Co Ltd 裏面から照光可能な加飾成形品
JP4478541B2 (ja) * 2004-09-28 2010-06-09 日本写真印刷株式会社 裏面側から照光可能な成形同時加飾成形品の製造方法
US8113695B2 (en) * 2005-02-04 2012-02-14 Adac Plastics, Inc. Trim component with concealed indicium
JP4432911B2 (ja) * 2006-02-03 2010-03-17 豊田合成株式会社 装飾体及び該装飾体を蓋部とした収容箱
IT1396079B1 (it) * 2009-10-16 2012-11-09 Zanini Holding S P A Procedimento di fabbricazione di un elemento decorativo, particolarmente destinato all'impiego come emblema su di un autoveicolo.
US9016910B2 (en) * 2011-06-10 2015-04-28 Adac Plastics, Inc. Vehicular component incorporating concealable indicia with controlled light transmission
CN103839718B (zh) * 2012-11-23 2017-04-19 致伸科技股份有限公司 发光键盘
JP6285644B2 (ja) * 2013-05-29 2018-02-28 テイ・エス テック株式会社 車両用加飾部品及び車両用ライニング
JP6333519B2 (ja) * 2013-05-29 2018-05-30 テイ・エス テック株式会社 車両用加飾部品
US20150307033A1 (en) * 2014-04-29 2015-10-29 Global Ip Holdings, Llc Vehicle trim part having a layered, decorative finish and configured to form a light pattern at the front of the part
DE102014106585A1 (de) * 2014-05-09 2015-11-12 Leonhard Kurz Stiftung & Co. Kg Mehrschichtkörper und Verfahren zu dessen Herstellung
US10641542B2 (en) * 2015-09-25 2020-05-05 Lg Electronics Inc. External member for home appliances having light transmitting through-holes and manufacturing method therefor

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Publication number Publication date
ES2706652R1 (es) 2019-04-09
JP2023071725A (ja) 2023-05-23
KR20200036842A (ko) 2020-04-07
JP2020525326A (ja) 2020-08-27
CN111065527A (zh) 2020-04-24
ES2706652A2 (es) 2019-03-29
ES2693388A1 (es) 2018-12-11
KR20230125098A (ko) 2023-08-28

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