EP4565546A1 - Composant horloger et procédé de réalisation d'un composant horloger - Google Patents
Composant horloger et procédé de réalisation d'un composant horlogerInfo
- Publication number
- EP4565546A1 EP4565546A1 EP23745606.6A EP23745606A EP4565546A1 EP 4565546 A1 EP4565546 A1 EP 4565546A1 EP 23745606 A EP23745606 A EP 23745606A EP 4565546 A1 EP4565546 A1 EP 4565546A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- layer
- substrate
- recess
- enamel
- watch component
- 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
Links
Classifications
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- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B45/00—Time pieces of which the indicating means or cases provoke special effects, e.g. aesthetic effects
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
- C04B35/111—Fine ceramics
- C04B35/115—Translucent or transparent products
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/52—Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/53—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone involving the removal of at least part of the materials of the treated article, e.g. etching, drying of hardened concrete
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/89—Coating or impregnation for obtaining at least two superposed coatings having different compositions
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/91—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics involving the removal of part of the materials of the treated articles, e.g. etching
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
- C04B2235/9646—Optical properties
- C04B2235/9653—Translucent or transparent ceramics other than alumina
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/44—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminates
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/44—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminates
- C04B35/443—Magnesium aluminate spinel
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/48—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on zirconium or hafnium oxides, zirconates, zircon or hafnates
- C04B35/486—Fine ceramics
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/58—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides
- C04B35/581—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on aluminium nitride
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- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B19/00—Indicating the time by visual means
- G04B19/06—Dials
- G04B19/12—Selection of materials for dials or graduations markings
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- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B19/00—Indicating the time by visual means
- G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
- G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
- G04B19/247—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator disc-shaped
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- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B19/00—Indicating the time by visual means
- G04B19/28—Adjustable guide marks or pointers for indicating determined points of time
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- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B37/00—Cases
- G04B37/22—Materials or processes of manufacturing pocket watch or wrist watch cases
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- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B39/00—Watch crystals; Fastening or sealing of crystals; Clock glasses
Definitions
- Watch component and process for producing a watch component are described.
- the invention relates to a watch component.
- the invention also relates to a timepiece comprising such a timepiece component.
- the invention finally relates to a method for producing such a watch component.
- Patent EP1734420B1 describes a transparent watch crystal, locally enameled on its underside, so as to help hide the system for assembling the glass to the middle.
- the main claim is for a waterproof case comprising a middle part and a bottom delimiting a compartment closed by a glass, made of a transparent material resistant to a temperature above 500°C, glued or welded at the level of the joint areas covering at least partially the scope of the middle, characterized in that the internal face of the glass has an enamel deposit formed at the joint areas.
- Patent CH320817 describes a rotating bezel comprising a transparent disc whose lower face is both:
- indexes signals
- the hollows being coated with a metallic deposit coloring the indexes
- the transparent disc reveals signs of metallic color, contrasting with the color applied to its underside.
- This color is that of a varnish.
- Document W02006/133810A1 discloses a component comprising a transparent substrate decorated using layers of enamel placed in recesses, as well as their method of obtaining. Variations in enamel shades described in this document are generated by variations in enamel thickness, controlled by the depth of the recesses in which it is deposited (these recesses may be on the faces and/or on the side of the enamel). components). We thus obtain a variation of shades for a single enamel composition.
- the aim of the invention is to provide a watch component making it possible to improve the components known from the prior art.
- the invention proposes a watch component that can be decorated in a simple manner and offering great durability of the decorations made on the component without it being necessary to design the rest of the timepiece, with dedicated means to spare and protect the decorated surface.
- objects are defined by the following propositions.
- Watch component (1) comprising:
- Watch component (1) according to proposition 1, characterized in that the watch component (1) comprises a second finishing layer (13), in particular a second layer (13) of opacifying finishing, applied at least in part to the first layer of colored enamel (12).
- Watch component (1) according to proposition 1 or 2, characterized in that the substrate is made of an inorganic material such as a technical ceramic, a quartz, a spinel, a magnesium aluminate, an AION, a YAG, a cubic zirconia , a mineral glass, a polycrystalline alumina, a glass ceramic, a monocrystalline alumina and/or in that the substrate has at least locally a value of the real in-line transmission or Real In-line Transmittance for light having a wavelength of 550 nm greater than 60% or 70% or 80% or 85%.
- an inorganic material such as a technical ceramic, a quartz, a spinel, a magnesium aluminate, an AION, a YAG, a cubic zirconia , a mineral glass, a polycrystalline alumina, a glass ceramic, a monocrystalline alumina and/or in that the substrate has at least locally a value of the real in-line transmission or Real In-line Transmittance for light
- Watch component (1) according to one of propositions 1 to 3 characterized in that the substrate has a hardness greater than 800 Hv or 1000 Hv.
- a layer of enamel in particular a layer of enamel applied by transfer, and/or
- a metal-based layer in particular deposited by PVD, CVD, ALD, PLD, and/or
- Watch component (1) according to one of propositions 1 to 5, characterized in that the watch component (1) is an external covering component for a timepiece (100), such as in particular:
- the watch component (1) is an internal component for a timepiece (100), such as in particular:
- Watch component (1) according to one of propositions 1 to 6, characterized:
- the substrate (1 1) comprises a first surface (11 1) and a second surface (1 12), in particular a second surface (1 12) parallel or substantially parallel to a first surface (1 1 1), - in that the first layer (12) and/or the second layer (13) are applied to the first surface (1 11), and
- Watch component (1) according to proposition 7, characterized in that the substrate (1 1) comprises at least one second recess (15) made on the second surface (1 12), in particular at least one second recess (15) made by laser machining. .
- Watch component (1) according to proposition 8 characterized in that the at least one second recess (15) is coated, in particular coated with a metal-based layer, in particular coated with a metal-based layer deposited by PVD , CVD, ALD or PLD. 0.
- the substrate (1 1) comprises at least a first recess (14) made on the first surface (1 1 1) after application of the first and second layers, in particular at least one first recess (14) produced by laser machining.
- Watch component (1) according to proposition 1 1 or 12, characterized in that the at least one first recess (14) is such that the area of material ablated at the level of a plane perpendicular to a direction in which is made the at least one first hollow, arranged between:
- the surface from which the at least one first recess is made in particular the lower surface (1 1 1) or a surface of the first layer (12) or a surface of the second layer (13), and
- Watch component (1) according to one of propositions 11 to 13, characterized in that the at least one first recess (14) has a millimetric or micrometric or nanometric area, in particular at the level of a surface defining the bottom of the hollowing and/or at the level of the surface from which it is carried out.
- a metal-based layer in particular by PVD, CVD, ALD, PLD, and/or
- Production method characterized in that it comprises a step of producing at least one first recess (14) on a first surface (111) of the substrate (1 1), in particular at least one first recess (14) produced by laser machining, and/or in that it comprises a step of producing at least one second recess (15) on a second surface (1 12) of the substrate (1 1), in particular at least one second recess (15) produced by laser machining.
- Production method characterized in that the step of producing at least one first hollowing and/or the step of producing at least one second hollowing are carried out after the step of applying the first layer of enamel (12) on the substrate (11), and in that, in the step of producing at least one first hollow and/or in the step of producing at least one second hollow, a decoration formed by the first layer of enamel is used as a reference, in particular as a machining reference.
- Production method according to one of propositions 18 and 19, characterized in that the method comprises a step of coating the at least one first recess (14) and/or the at least one second recess (15), in particular by a metal-based layer, in particular by a metal-based layer deposited by PVD, CVD, ALD or PLD.
- Watch component (1) obtained by implementing the method according to one of propositions 15 to 20.
- Timepiece (100) comprising a watch component (1) according to one of propositions 1 to 14 and 21, in in particular a watch component (1) according to one of propositions 7 to 14 arranged so that the first surface (1 1 1), in particular the first layer (12) and/or the second layer (13), is visible through the second surface (1 12) and the substrate (1 1) by the wearer of the timepiece (100).
- Watch component (1) comprising:
- Watch component (1) according to proposition 23, characterized in that the substrate is made of an inorganic material such as a technical ceramic, a quartz, a spinel, a magnesium aluminate, an AION, a YAG, a cubic zirconia, a mineral glass, a polycrystalline alumina, a glass ceramic, a monocrystalline alumina and/or in that the substrate has at least locally a value of the real in-line transmission or Real In-line Transmittance for light having a wavelength of 550 nm greater than 60% or 70% or 80% or 85%.
- an inorganic material such as a technical ceramic, a quartz, a spinel, a magnesium aluminate, an AION, a YAG, a cubic zirconia, a mineral glass, a polycrystalline alumina, a glass ceramic, a monocrystalline alumina and/or in that the substrate has at least locally a value of the real in-line transmission or Real In-line Transmittance for light having a wavelength
- Watch component (1) according to one of propositions 23 to 24, characterized in that the substrate has a hardness greater than 800 Hv or 1000 Hv.
- a layer of enamel in particular a layer of enamel applied by transfer, and/or
- a metal-based layer in particular deposited by PVD, CVD, ALD, PLD, and/or
- Watch component (1) according to one of propositions 23 to 26, characterized in that the watch component (1) is an external covering component for a timepiece (100), such as in particular:
- the watch component (1) is an internal component for a timepiece (100), such as in particular:
- Watch component (1) according to one of propositions 23 to 27, characterized:
- the substrate (1 1) comprises a first surface (11 1) and a second surface (1 12), in particular a second surface (1 12) parallel or substantially parallel to a first surface (1 1 1),
- Watch component (1) according to proposition 28 characterized in that the substrate (1 1) comprises at least one second recess (15) made on the second surface (1 12), in particular at least one second recess (15) made by laser machining.
- Watch component (1) according to proposition 29 characterized in that the at least one second recess (15) is coated, in particular coated with a metal-based layer, in particular coated with a metal-based layer deposited by PVD , CVD, ALD or PLD.
- Watch component (1) according to one of propositions 23 to 31 and according to proposition 28, characterized in that the substrate (1 1) comprises at least a first recess (14) made on the first surface (1 1 1) after application of the first and second layers, in particular at least one first recess (14) produced by laser machining.
- Watch component (1) according to proposition 32 characterized in that the at least one first recess (14) is coated, in particular coated with a metal-based layer, in particular coated with a metal-based layer deposited by PVD, CVD, ALD or PLD.
- Watch component (1) according to proposition 32 or 33, characterized in that the at least one first recess (14) is such that the area of material ablated at the level of a plane perpendicular to a direction in which the 'at least a first hollow, arranged between:
- the surface from which the at least one first recess is made in particular the lower surface (1 1 1) or a surface of the first layer (12) or a surface of the second layer (13), and
- Watch component (1) according to one of propositions 32 to 34, characterized in that the at least one first recess (14) has a millimetric or micrometric or nanometric area, in particular at the level of a surface defining the bottom of the hollowing and/or at the level of the surface from which it is carried out.
- a metal-based layer in particular by PVD, CVD, ALD, PLD, and/or
- Production method characterized in that it comprises a step of producing at least one first recess (14) on a first surface (11 1) of the substrate (1 1), in particular at least one first recess (14) produced by laser machining, and/or in that it comprises a step of producing at least one second recess (15) on a second surface (1 12) of the substrate (1 1), in particular at least one second recess (15) produced by laser machining.
- Production method characterized in that the step of producing at least one first hollowing and/or the step of producing at least one second hollowing are carried out after the step of applying the first layer of enamel (12) on the substrate (11), and in that, in the step of producing at least one first hollow and/or in the step of producing at least one second hollow, a decoration formed by the first layer of enamel is used as a reference, in particular as a machining reference.
- Production method according to one of propositions 38 and 39, characterized in that the method comprises a step of coating the at least one first recess (14) and/or the at least one second recess (15), in particular by a metal-based layer, in particular by a metal-based layer deposited by PVD, CVD, ALD or PLD.
- Watch component (1) obtained by implementing the method according to one of propositions 36 to 40.
- Timepiece (100) comprising a watch component (1) according to one of propositions 25 to 35 and 41, in in particular a watch component (1) according to one of propositions 30 to 35 arranged so that the first surface (1 1 1), in particular the first layer (12) and/or the second layer (13), is visible at through the second surface (1 12) and the substrate (1 1) by the carrier of the timepiece (100).
- Figure 1 is a schematic view of an embodiment of a timepiece according to the invention, view in which a watch component is shown in section.
- the timepiece 100 is for example a watch, in particular a wristwatch.
- Timepiece 100 includes a set including:
- the assembly is intended to be mounted in a timepiece case or box in order to protect it from the external environment.
- the watch movement can be a mechanical movement, in particular an automatic movement, or even a hybrid movement.
- the movement may be an electronic movement.
- the timepiece 100 in particular the assembly or the case or the dial or the movement, comprises a timepiece component 1.
- the timepiece component 1 can for example be an external trim component for a timepiece 100, such as in particular:
- watch component 1 can be an internal component for timepiece 100, such as:
- Watch component 1 includes:
- colored enamel layer we mean a layer of enamel having a coloration visible to the naked eye, regardless of the color of this area. The color can thus be achromatic (white, gray or black).
- a “colored layer” generally provides its color to the watch component or contributes to the color of the watch component.
- the final color or resulting color of the watch component is then a combination of the color of this colored layer, nuanced by that of a possible second finishing layer and that of the substrate if it is not colorless.
- the substrate is colorless
- the resulting color of the watch component is the resulting shade of the first enamel layer 12 and the possible second finishing layer 13.
- the substrate is sapphire, an alumina monocrystalline and colorless
- the resulting color of the watch component is the resulting shade of the first layer of enamel 12 and of the possible second finishing layer 13.
- the watch component comprises the first layer of colored enamel 12 applied by decaling a chromo on the substrate 11, in particular on the first surface 1 1 1 of the substrate 1 1, and/or
- the watch component comprises the second layer 13 for finishing or supporting the decoration or opacifying.
- the second layer 13 is applied at least partly on top of the first layer 12.
- the function of the second layer 13 is in particular to support the color of the colored enamel.
- finishing layer we mean the second of the two layers of the envisaged stack, that is to say the one with which the stack is finished or the one which covers the first layer. Where there is a first coat and a top coat, the first coat is sandwiched between the substrate and the top coat.
- the finishing layer has the function of being a support layer or an opacifying layer, that is to say to reduce or eliminate the transparency of the decoration formed by the colored layer or more generally, to support the color of the first colored layer.
- support layer we mean a layer which intensifies or modifies the color of the first layer.
- opacifying layer is meant a non-transparent layer, in particular an enamel layer being non-transparent.
- An opacifying layer reduces the transparency of the assembly that it forms with the structure to which it is applied, compared to the transparency of this structure alone.
- An opaque layer removes all transparency from the whole that it forms with the structure on which it is applied, whatever the transparency of this structure. In practice, you cannot see through an opaque layer.
- the component is advantageously arranged so that the first layer 12 and/or the second layer 13 is visible through the substrate 11 by the wearer of the timepiece 100. in other words, the wearer or user of the watch advantageously sees the side of the first layer in contact with the substrate 1 1, this vision being achieved through the substrate.
- the component is made so as to be arranged in such a configuration.
- the first layer and/or the second layer create a decoration, that is to say, preferably:
- This decoration can be monochrome or formed by several colors.
- first layer and/or second layer are decorative. They can completely hide the elements behind watch component 1 or reveal certain areas using transparency.
- the watch component 1 generally has the shape of the substrate, the substrate 11 mainly constituting the watch component 1.
- the substrate 11 comprises a first surface 111 and a second surface 112, in particular first and second surfaces 111, 112 parallel or substantially parallel.
- the first and second surfaces 1 1 1, 1 12 can each be of any nature, in particular planar, frustoconical, torus portion, recessed convex or projecting convex.
- the surfaces 1 1 1 and 1 12 form faces of the component. These faces are parallel. Alternatively, they might not be parallel.
- the first and second surfaces are for example two parallel or substantially parallel frustoconical surfaces.
- first layer 12 has been applied to the first surface 11 1.
- the first layer may have been applied to the entire first surface 11 1 or to only part of the first surface 1 1 1 as shown in Figure 1.
- the second layer 13 has been applied directly above the first surface 1 1 1, on the assembly formed by a portion of the first surface 1 1 1 of the substrate and the first layer 12.
- the second layer like the first layer, can be applied directly to the entire first surface 1 11 or directly to only part of the first surface 11 1, as shown in Figure 1.
- the first surface 111 Due to the transparency of the substrate 11, the first surface 111, in particular the first layer 12 and/or the second layer 13 applied to the first surface, is visible through the second surface 112 and the substrate 1 1.
- the substrate is made from or from an inorganic material such as:
- the first surface 1 1 1 has a mirror polished surface state and/or the second surface 112 has a mirror polished surface state.
- at least one of the first surface 1 1 1 and second surface 1 12 may have a rougher surface state, for example a frosted surface state.
- This rough surface state can in particular be obtained by sandblasting and/or satin-finishing and/or brushing; it can be carried out using a traditional tool and/or using a laser.
- this makes it possible to give a matte appearance to at least part of the watch component 1, part of the watch component at which the rough surface condition is produced.
- the substrate is at least partially transparent.
- the substrate is transparent and colorless. More generally, the substrate can be made of a material that is at least partially transparent.
- the substrate comprises at least one transparent region, and/or
- the substrate at least one region of the substrate or the entire substrate having a certain degree of transparency, part of the light not being transmitted through the substrate.
- This covers, for example, translucent substrates or whose “Real In-line Transmittance to light having a wavelength of 550 nm is greater than 60%, or even 70%, or even 80%, or even 85%”.
- there is at least one place on the substrate where at least 60%, or even at least 70%, or even at least 80%, or even at least 85%, of light whose wavelength is 550 nm can pass through. the substrate from the second surface to the first surface.
- n the refractive index of the material and a(X), the attenuation coefficient of the material, which takes into account the optical losses induced by the various sources of dispersion or absorption of light passing through the material.
- the substrate may be colored.
- the production process comprises the following steps:
- the application of the first layer of colored enamel 12 on the substrate 11 can be produced by decaling a chromo on the substrate 11, in particular on the first surface 1 1 1 of the substrate 1 1, and/or
- the process may include an application of a second finishing layer 13 at least partly on the first layer of colored enamel 12.
- a solution subject of this document is based on a particular use of the enamel deposited by means of chromo (enamel decal; we specify that the expressions "enamel decal” and “chromo decal> > are considered equivalent) on a surface intended to be seen by the user of the watch through the substrate 1 1.
- this is implemented in two stages:
- a second finishing layer of enamel removes the transparency of the decoration or more generally, supports the color of the first layer of colored enamel.
- the second layer of enamel is opaque.
- the second layer of enamel is opaque and white.
- the second finishing or decor support or opacifying layer can be:
- a layer of enamel in particular a layer of enamel applied by transfer, in particular by chromo decal, and/or
- a metal-based layer in particular deposited by PVD, CVD, ALD, PLD, and/or
- the watch component 1 for example to produce a bezel disc, we proceed as follows:
- an enamel decoration is applied by decaling a chromo on a surface of the substrate intended to be seen through the substrate,
- finishing or supporting or opacifying layer is applied over the enamel decoration.
- an undercoat is optionally applied to the surface of the substrate which would be seen by the user in the absence of a coating on this surface
- the exterior surface of the component can very frequently be subject to attacks from the external environment. This may harm the lasting integrity of the decor if it is placed on this exterior surface.
- the solutions according to the invention offer solutions to this problem by exposing the bare surface of the component to these attacks, thus protecting the decoration placed on a more sheltered surface and visible by transparency through the substrate.
- a substrate 11 to decorate The substrate constitutes a part of the watch component 1 and, preferably, the majority of the watch component 1.
- This substrate must withstand the glazing conditions. Thus, it must withstand temperatures above 500°C, preferably above 750°C, allowing the vitrification of the enamel, without suffering damage such as deformation or oxidation.
- the substrate must also have sufficient hardness to be able to resist abrasion.
- the material of which the substrate is made preferably has a Vickers hardness greater than 800 Hv, or even greater than 1000 Hv. This is all the more important if the component is an exterior covering component which can be exposed to mechanical attack.
- the first layer of enamel is applied.
- the decoration is applied to the substrate 1 1, in particular to the first surface 1 1 1 of the substrate 1 1.
- this decoration is applied by decal.
- one or more chromos are applied by decal on the substrate 1 1, in particular on the first surface 1 1 1 of the substrate 1 1, that is to say that a layer of enamel is applied by decal of one or more chromos.
- the possible different chromos can be applied to different regions of the first surface 1 11 juxtaposed or not, and/or they can be at least partially superimposed.
- the decoration whose pattern is determined by the chromo is previously prepared, for example by screen printing, by lithography, by chromolithography, on transfer paper (or transfer paper).
- the color consists of a colored film deposited on the transfer paper, one of the faces of which is intended to come into contact with the first surface 1 1 1 of the substrate 1 1 during transfer.
- the film is made of enamel powder mixed with a polymer to ensure consistency. This film can be transferred (or transferred or transported) from the transfer paper to the first surface of the substrate to create a decoration.
- the application of chromo is carried out by moistening it in water, in order to separate the film from the transfer paper, before or after application of the film on the substrate (depending on whether the pattern is transferred to the place where Upside down).
- the substrate on which the film is deposited is baked.
- This film is made up of enamel powder mixed with a polymer, cooking serves on the one hand to eliminate the polymer and on the other hand to vitrify the enamel.
- This cooking can be done in an oven, in ambient air, at high temperature.
- the vitrification heat treatment is obtained above 500°C, preferably above 750°C, for a period of a few minutes, typically 15 minutes.
- the substrate is decorated with a layer of colored enamel.
- the coefficient of thermal expansion of the enamel used in the chromo must be identical or very close or compatible with that of the substrate in order to guarantee a hold (adhesion) and a suitable aesthetic (i.e. not showing cracks , no shaking or chipping).
- a chromo layer has a thickness typically of the order of 5 to 20 pm, or even 7 to 10 pm after cooking (which can correspond to a thickness of 40 pm to 80 pm when it is raw). This is why it is considered to be thin compared to a deposited layer of enamel traditionally considered to be thick (typically, more than 100 pm, or even more than 200 pm, or even more than 300 pm after firing).
- the use of such thin chrome is made possible by the fact that at the same thickness, the color of the chrome is more saturated than that of a traditionally deposited enamel.
- the enamel can be deposited by pad printing type transfer or direct screen printing type transfer to create the decoration.
- the enamel can be applied in the traditional way, with a brush for example.
- this step of producing the first layer can be repeated.
- the first layer of enamel constituting the decoration in particular a colored decoration, can therefore be multi-layered.
- baking is preferably carried out between each application of a layer of enamel on the substrate 11, in particular on the first surface 111 of the substrate 11 or on the layer previously applied.
- a single firing can be carried out once all layers of enamel are applied.
- the second layer 13 is applied.
- the second layer is preferably a finishing or support or opacifying layer.
- the second layer is at least translucent and ideally opacifying.
- the second layer is a uniformly white and/or opaque layer of enamel.
- the second layer covers at least partly the decorations constituted by the first layer constituted during the second step.
- the coefficient of thermal expansion of the enamel used for the second layer 13 must be identical or very close to or compatible with that of the layer on which it is deposited, for the reasons explained previously.
- the tolerance on the difference in thermal expansion coefficient between these layers and the substrate 11 is greater than in the case of deposition of a thick layer, which offers more possibilities in terms of adhesion and aesthetics.
- This second layer 13 or finishing layer is preferably applied by transfer, in particular by chromo decal, as was the decoration in the second step.
- the second layer 13 can also be applied by other techniques (pad printing, brush, screen printing, etc.). Different implementation variants can be planned in this third stage:
- the second layer can be any color. Any enamel color can be considered. The color of the second layer may be different depending on where it is applied on the decor and/or on the substrate.
- the opacity of the second layer can be varied: different levels of opacity can be considered, from translucent to completely opaque, depending on the nature of the finishing layer(s). The targeted opacity could also be different depending on the location where the finishing coats are applied on the decor, and on the substrate.
- finishing coat any type of inorganic material meeting the criteria of opacity and resistance to environmental stress could be considered.
- the chemical nature of the topcoat may also be different depending on where it is applied to the decor. For example :
- PVD Physical Vapor Deposition
- CVD Chemical Vapor Deposition
- ALD Atomic Layer Deposition
- PLD Pulsed Laser Deposition
- the method of applying the finishing coat can thus be a method by transfer, by brush, by screen printing, PVD, CVD, ALD, PLD, etc., depending on the nature of the layer, its thickness, the level of targeted precision (in location, thickness, distribution, etc.).
- the finishing layer is at least positioned over part of the locations decorated during the second step. - The distribution of the finishing coat can be varied over the extent of the first surface 1 1 1:
- the finishing coat can only be positioned on the locations decorated during the second step, and, in this case, it can be applied to all or part of the decoration,
- the finishing layer can also be positioned on undecorated locations during the second step, and, in this case, it can be on all or part of the undecorated locations,
- the thickness of the finishing coat can be variable:
- the application of the second layer can be:
- a metal-based layer in particular by PVD, CVD, ALD, PLD, and/or
- one or more recesses can be made on the first surface 1 1 1 of the watch component and/or one or more recesses on the second surface 1 12 of the watch component.
- One or more hollows on the first surface and/or on the second surface can be made before the second and third steps mentioned above, and/or one or more recesses on the first surface and/or on the second surface can be made between the second and third steps mentioned above, and/or one or more recesses on the first surface and/or on the second surface can be made after the second and third stages mentioned above.
- the hollowing can affect:
- the hollowing can affect:
- At least one first recess 14 can be made on the first surface 111, in particular at least one first recess 14 made by laser machining, and/or at least one second recess 15 can be made on the second surface 112, in particular at least one second recess 15 produced by machining laser.
- the method comprises a step of coating the at least one first recess 14 and/or the at least one second recess 15, in particular by a metal-based layer, in particular by a metal-based layer deposited by PVD, CVD, ALD or PLD.
- a hollow can have any shape or geometry.
- the thickness of material machined to form a hollow can be the same regardless of the location of the hollow.
- the depth of a dig can be constant, and the distance (measured perpendicular to the surface from which the dig is made and) which separates:
- the surface from which the hollowing is carried out (this can be the lower surface 1 1 1, just like the surface 112, or a surface of the layers 12 or 13),
- a surface defining the bottom of the recess may be the same and correspond to the depth of the recess, regardless of the location of the recess.
- the depth of a hollow can be progressive, that is to say it can change depending on the location(s) considered in the hollow.
- the height (or depth) of the sides or walls which define the contour of a hollow can change and is therefore not necessarily constant.
- the surface defining the bottom of the recess is therefore not necessarily parallel to the surface from which it is made.
- the sides or walls can also form an oblique angle (constant or variable) facing for example the surface from which the hollowing is made and/or facing the surface defining the bottom digging.
- the normal to the surface from which it is performed can be arbitrary, allowing all types of designs.
- the surface from which the hollowing is carried out (this can be the lower surface 1 1 1, just like the surface 112, or a surface of the layers 12 or 13), and
- a surface defining the bottom of the recess may or may not be constant depending on the position considered of the plane between the surface from which the recess is made and a surface defining the bottom of the recess.
- the area of material ablated at the level of a plane perpendicular to the direction in which the digging is carried out, arranged between the surface from which the digging is carried out and a surface defining the bottom of the hollowing can be evolving according to the direction in which the digging is carried out.
- the area of material ablated at the level of any plane parallel to the direction in which the digging is carried out may also be constant or not.
- the area of material ablated at the level of any plane parallel to the direction in which the digging is carried out can be evolving in a direction orthonormal to the direction in which the digging is carried out.
- the areas concerned of ablated material can be of an order of magnitude millimetric (for example between 1 mm 2 and 15 mm 2 ), micrometric (for example between 1 pm 2 and 15 pm 2 ), nanometric (i.e. any surface area less than 1 pm 2 ) or the affected areas of ablated material can be those of surfaces whose dimension is of an order of magnitude:
- a recess can thus have a millimetric or micrometric or nanometric area, in particular at the level of a surface defining the bottom of the recess and/or at the level of the surface from which it is made.
- the first example concerns the manufacture of a watch crystal, particularly in sapphire, presenting two shades of red.
- the first step is to obtain a watch crystal, for example sapphire.
- a watch crystal for example sapphire.
- the lower surface 111 and/or the upper surface 112 are flat.
- the second step consists of creating the decoration (first layer 12).
- a red chromo prepared beforehand, in particular by screen printing a colored enamel on transfer paper. By dipping it in de-ionized water, the colored enamel film comes off the transfer paper. This film is then applied to the lower surface 1 1 1 of the watch crystal (side intended to be inside the watch case).
- the watch glass is then cooked at 800°C for 15 minutes in an oven. The temperature rise speed is rapid (around 30 minutes) and the cooling takes place over an equivalent period, so that the complete heat treatment allowing the vitrification of the enamel lasts less than an hour and a half.
- the third step consists of making the finishing layer (second layer 13).
- a layer of white and opaque enamel is applied to part of the decorative layer previously deposited during the second step.
- the finishing coat is for example a layer of enamel, applied using a chromo in the same way as the decoration during the second step.
- the watch glass is then typically cooked at 800°C for 15 minutes in an oven. The temperature rise speed is rapid (around 30 minutes) and the cooling takes place over an equivalent period, so that the complete heat treatment allowing the vitrification of the enamel lasts less than an hour and a half.
- the second example concerns the manufacture of a two-tone red and black sapphire bezel disc.
- a sapphire bezel disc with a mirror-polished surface finish. Its upper surface 1 12 (the one which will be directly seen by the user when the disc is in place on the timepiece) is for example curved.
- the lower surface 1 1 1 (the one which will be seen indirectly, that is to say through the substrate, by the user when the disc is in place on the timepiece) is for example flat.
- the decoration by applying the first layer.
- chromos one black and one red, prepared beforehand, in particular by enamel screen printing on transfer paper
- the chromos are soaked in de-ionized water so that the transfer papers come off the colored enamel films. These films are then placed on the lower surface 1 1 1.
- the black film is positioned on one half of the lower surface of the sapphire disc and the red film is positioned on the other half of the lower surface. sapphire disc.
- Cooking at 800°C for 15 minutes is then carried out in an oven. The temperature rise speed is rapid (around 30 minutes) and the cooling takes place over an equivalent period, so that the complete heat treatment lasts less than an hour and a half.
- a single color including a black zone and a red zone can be used.
- One or more marks can be made on the substrate to help position the chromo film on the first surface 1 1 1.
- the mark(s) can be positioned on the first surface or on a surface adjacent to the first surface.
- the mark(s) can be constituted by a material which disappears during the vitrification of the enamel.
- the third step we make a finishing coat.
- a layer of white and opaque enamel is applied over the entire previously enameled part, during the second step.
- the finishing coat is also obtained using a chromo, applied in the same way as the decor in the second step.
- the bezel disc with opaque decoration, can then be clipped into a steel ring to form a bezel. Possible technical parts of the bezel can be highlighted by the areas remaining transparent after the decorations made on the lower surface 1 1 1 of the disc.
- the third example concerns the manufacture of a two-tone red and black sapphire bezel disc with metalized recesses.
- the decoration of the disc obtained in the second example described above can be continued to obtain the third example comprising hollows or metallized engravings.
- the upper surface 1 12 is then covered with a protective resin.
- hollows are made, in particular with a femtosecond laser on the upper surface 1 12, through the resin.
- PVD Physical Vapor Deposition
- the bezel disc can then be clipped into a steel ring to form a bezel.
- Any technical parts can be highlighted by the areas that remain transparent after the decorations made on the lower surface. Thanks to the solutions described, it is possible to obtain both the advantages of the chromo decoration and those of the sapphire substrate, in a synergistic manner due to the innovative configuration proposed.
- the chromo decoration gives access to aesthetic advantages, due to the wide range of enamel colors available, and this without design limitation (only the resolution of the chromo has to be taken into account; for example, when it is manufactured by screen printing , the resolution is that of the mesh of the chosen frame).
- Enamel deposited using the chromo technique has very good adhesion. To do this, however, it is necessary to adapt the thermal expansion coefficients of the enamels to that of the substrate.
- Enamels offer the advantage of guaranteeing possible use of the component produced over very wide temperature ranges, as well as excellent resistance to thermal shock, UV rays, humidity (even combined with high temperatures), and to chemicals. Chromo is not reserved for flat surfaces.
- the film can be deposited on raised surfaces (for example, it is suitable for a disc having a frustoconical or convex surface). Chromo is not reserved for surfaces delimited by partitions, because the film is a coherent object (unlike traditional enamel, deposited in the form of a fluid, so that partitions must be provided for the keep it in its intended location). Chromo deposition is more repeatable and automatable than traditional brush enamelling. It is thus possible to obtain high production quality, in series.
- sapphire As a material for making the substrate 1 1, sapphire is preferred. Sapphire indeed has excellent resistance to scratches, due to its very high hardness. For the application of a watch component, the fact that the upper surface 112 of the component (that exposed to possible mechanical attack) is made of sapphire makes it possible to offer a solution at least as good as current ceramic solutions. In fact, the hardness of sapphire is equivalent to that of polycrystalline alumina used to make certain components, and greater than that of zirconia used to make other components.
- sapphire has excellent breaking strength.
- the breaking stress of sapphire is -1700 MPa along the A axis and -3500 MPa along the C axis, which is greater than the breaking stress of zirconia (-1300 MPa) , itself higher than that of polycrystalline alumina (-500 MPa).
- the proposed solution combining a sapphire and an enameled decoration, is entirely inorganic, and therefore unalterable to UV rays, over very wide temperature ranges, to humidity (even combined with high temperatures), to chemicals, without having to seal the decor. In addition, it is resistant to abrasion.
- the arrangement results in a visual and aesthetic effect of depth. This effect can be further amplified by the rounded hollow or convex geometry projecting from the substrate surface directly visible to the user.
- Transparency levels and aesthetic effects can be adjusted by adjusting the opacity and color of the topcoat and the location where it is positioned. For a masking function, you can choose to create opaque layers.
- the solutions described allow treatment of the upper surface 112 of the sapphire after having carried out the steps of providing a substrate, applying a first layer and applying a second layer.
- this treatment it is possible to take advantage of the transparency of the substrate and, consequently, to locate the treatment position of the upper surface 1 12 by locating on the decoration produced on the lower surface 1 1 1. This allows to position, by observation/recognition of the shape of the decoration, the treatment to be carried out on the upper surface.
- a decorated watch component unalterable and adaptable without limitation of choice of graphic elements, patterns, shapes and colors or their associations, according to any spatial distribution, (that is to say without limitation of design)
- a first layer of enamel on a partially transparent or transparent substrate, this first layer of enamel being intended to be seen through the substrate.
- the first layer of enamel can be produced by transfer, in particular by decaling a chromo, and/or the first layer of enamel can be at least partially covered with a second opacifying layer, in particular a second white opacifying layer.
- transfer any process making it possible to transfer, transfer or transport enamel onto a surface to be enameled according to an already established design, that is to say already constituted before transfer, transfer or transportation. This may include:
- this transfer can be a decal, in particular a waterslide decal.
- the first layer possibly formed by the use of a chromo, through the substrate, and
- the second layer through the substrate and the first layer.
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- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
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Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP22188303 | 2022-08-02 | ||
| PCT/EP2023/071448 WO2024028403A1 (fr) | 2022-08-02 | 2023-08-02 | Composant horloger et procédé de réalisation d'un composant horloger |
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| Publication Number | Publication Date |
|---|---|
| EP4565546A1 true EP4565546A1 (fr) | 2025-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23745606.6A Pending EP4565546A1 (fr) | 2022-08-02 | 2023-08-02 | Composant horloger et procédé de réalisation d'un composant horloger |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4565546A1 (fr) |
| JP (1) | JP2025525847A (fr) |
| CN (1) | CN119998250A (fr) |
| WO (1) | WO2024028403A1 (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4640655A1 (fr) * | 2024-04-23 | 2025-10-29 | Comadur S.A. | Article avec un décor en émail plique-à-jour rétroéclairé et son procédé de fabrication |
| EP4640656A1 (fr) * | 2024-04-23 | 2025-10-29 | Comadur S.A. | Procédé de gravage et texturation d'un émail |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH80850A (fr) * | 1918-10-25 | 1919-04-01 | Wachter Louis E F | Montre |
| US8964513B2 (en) | 2005-06-14 | 2015-02-24 | The Swatch Group Research And Development Ltd | Technical or decorative piece associating a transparent material and a silicon based amorphous material and method of manufacturing the same |
| EP1734423B1 (fr) * | 2005-06-14 | 2009-10-14 | Asulab S.A. | Assemblage d'une glace tactile sur un boîtier |
| EP1734420B1 (fr) | 2005-06-14 | 2008-11-12 | Montres Rado S.A. | Boîtier fermé par une glace avec un joint invisible ou pouvant être décoré et procédés de fabrication |
| US9434654B2 (en) | 2012-12-21 | 2016-09-06 | Rolex S.A. | Coloured technical ceramic bodies and method for preparing the same |
| JP6664962B2 (ja) | 2012-12-21 | 2020-03-13 | ロレックス エスアー | 着色工業用セラミック体及びそれを得る方法 |
-
2023
- 2023-08-02 WO PCT/EP2023/071448 patent/WO2024028403A1/fr not_active Ceased
- 2023-08-02 JP JP2025505717A patent/JP2025525847A/ja active Pending
- 2023-08-02 CN CN202380070125.9A patent/CN119998250A/zh active Pending
- 2023-08-02 EP EP23745606.6A patent/EP4565546A1/fr active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024028403A1 (fr) | 2024-02-08 |
| CN119998250A (zh) | 2025-05-13 |
| JP2025525847A (ja) | 2025-08-07 |
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