EP3067150A1 - Dekorationsverfahren eines uhrelements, und anhand eines solchen verfahrens hergestelltes uhrelement - Google Patents

Dekorationsverfahren eines uhrelements, und anhand eines solchen verfahrens hergestelltes uhrelement Download PDF

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Publication number
EP3067150A1
EP3067150A1 EP15158934.8A EP15158934A EP3067150A1 EP 3067150 A1 EP3067150 A1 EP 3067150A1 EP 15158934 A EP15158934 A EP 15158934A EP 3067150 A1 EP3067150 A1 EP 3067150A1
Authority
EP
European Patent Office
Prior art keywords
color
dial
decal
decorating
dial according
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.)
Granted
Application number
EP15158934.8A
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English (en)
French (fr)
Other versions
EP3067150B1 (de
Inventor
Alexandre Oliveira
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.)
Rolex SA
Original Assignee
Rolex SA
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 Rolex SA filed Critical Rolex SA
Priority to EP15158934.8A priority Critical patent/EP3067150B1/de
Priority to US15/068,210 priority patent/US10295961B2/en
Priority to JP2016048118A priority patent/JP6788363B2/ja
Priority to CN201610292205.0A priority patent/CN105966139B/zh
Publication of EP3067150A1 publication Critical patent/EP3067150A1/de
Application granted granted Critical
Publication of EP3067150B1 publication Critical patent/EP3067150B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
    • B44C1/16—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like
    • B44C1/165—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like for decalcomanias; sheet material therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C1/00—Forme preparation
    • B41C1/02—Engraving; Heads therefor
    • B41C1/04—Engraving; Heads therefor using heads controlled by an electric information signal
    • B41C1/05—Heat-generating engraving heads, e.g. laser beam, electron beam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F17/00—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for
    • B41F17/001—Pad printing apparatus or machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
    • B44C1/04—Producing precipitations
    • 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
    • G04B19/10—Ornamental shape of the graduations or the surface of the dial; Attachment of the graduations to the dial
    • 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
    • G04B45/0015—Light-, colour-, line- or spot-effects caused by or on stationary parts
    • 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
    • G04B45/0076—Decoration of the case and of parts thereof, e.g. as a method of manufacture thereof

Definitions

  • the invention relates to a method for decorating a timepiece, in particular a watch element. It also relates to a watch element as such obtained by the implementation of such a method. Finally, the invention also relates to a timepiece, in particular a watch, for example a wristwatch, comprising such a watchmaking element
  • a surface treatment traditionally by a grinding or decaling method, for example.
  • a surface treatment traditionally by a grinding or decaling method, for example.
  • markings may be made, for example by a decal, which makes it possible to record inscriptions on the surface, generally using a stamp comprising an engraved and inked plate.
  • the object of the invention is to provide a method of decorating a timepiece, in particular a dial, which makes it possible to achieve in a simple manner a precise and attractive aesthetic appearance, and durable over time.
  • the decoration method comprises a step of etching a pattern on a tampon printing plate by a femtosecond laser, and then comprises a step of decalting said pattern on a dial using the pad printing plate.
  • This decoration process is advantageously combined with a step of structuring the surface of the surface to decorate the dial.
  • a decorative method and a dial and a timepiece according to the invention are defined by the claims.
  • the possibilities offered by femtosecond laser machining are used to produce a tampon printing plate, which will be used in a step for decorating a timepiece, made of solid material.
  • metallic or non-metallic in particular in combination with another decoration technique according to one embodiment.
  • This approach has the advantage of greatly increasing the decorative possibilities of a watch element.
  • the invention will now be illustrated in a nonlimiting manner in the context of the decoration of a watch face. It could naturally be used to decorate another watch element, a wristwatch or a watch movement, such as for example and without limitation, a bezel, blanks or movement supplies.
  • the decoration method first comprises an etching step E1 of a tampon printing plate using a femtosecond laser, to form a decoration pattern.
  • the femtosecond laser is used in such a way that it makes it possible to generate an engraving whose extreme fineness obtained then makes it possible to trace very fine patterns on the dial, in particular patterns formed by fine lines corresponding to the engravings of the photograph.
  • this very fine pattern makes it possible to obtain surprising and seductive effects, such as, for example, a color rendering that is different from the color of the base ink of the plate and the color of the bottom of the dial, as this will be specified later.
  • the use of a femtosecond laser machining technique to produce a pattern intended to be printed by pad printing thus opens up very interesting new possibilities for producing watch dials, and more generally any watchmaking element.
  • the femtosecond laser can for example generate pulses with a wavelength of 1030 nm, energy of 20 ⁇ J, with a pulse rate of 500 kHz and a pulse duration of 270. fs.
  • the wavelength can be variable within a range ranging from 300 nm to 1100 nm, typically 343 nm for glass or alumina.
  • the duration of the pulses can be variable in a range from 200 fs to 500 fs.
  • An optical system is used to shape the beam, composed of different elements in order to adjust the energy delivered, the polarization and the size of the beam.
  • the beam is scanned on the target (surface of the tampon printing plate) by an electronically controlled optical beam deflection device. It allows to achieve the desired patterns via a control software.
  • F-Theta lenses are used in the embodiment, 100 mm and 160 mm focal length, respectively, to allow machining on a respective surface (field) of diameter 72 mm and 121 mm.
  • the use of a F-Theta lens of 60 mm focal length reduces the surface (field) to a diameter of 46 mm.
  • the scanning head is driven by a marking software associated with a digital control card for synchronizing the movement of the beam with the laser shot.
  • This set allows among other things to change the speed of displacement of the laser beam on the surface to be engraved, the laser scanning strategy and finally the number of passages on the same area.
  • the micro-positioning system is driven along five axes, three translation axes and two axes of rotation.
  • the depth of the etching obtained can be adjusted with the number of passes, and thus the number of repetitions of the scanning pattern: the higher the number of passes, the deeper the recess will be.
  • the removal of material resulting from this etching step causes the realization of a hollow of an average depth greater than or equal to 4 microns.
  • the decoration method comprises a particular E20 decal step, distinct or including any other traditional markings mentioned below, from the pad printing plate developed in the previous step E1 described above.
  • the superposition of such a decal on the surface of the dial to decorate achieves unexpected effects.
  • the invention does not relate to the design produced by this etching step, which allows to form all curves by moving the beam along a selected path, in particular lines, parallel or substantially parallel.
  • the decorating process may include optional additional steps. This complete process, including the optional steps, is illustrated by the figure 1 .
  • the decoration method comprises a preliminary step of preparing the surface of the dial to be treated.
  • the plate that forms the dial which is for example made of metallic material such as brass, is polished, washed and degreased.
  • the dial, or any other watch element to be decorated may be in another metallic material, the term metal including a pure metal or any metal alloy, such as steel, titanium, gold or platinum.
  • a watch element comprising a ceramic base plate, for example made of zirconia or alumina, silicon, glass, sapphire, mother-of-pearl or mineral material, whose bottom shows the natural color of the material or is colored in a given color, for example in white.
  • the decoration method comprises a complementary E2 treatment step of satin, brushing, or spraying.
  • This step E2 can be performed at any time of the decoration process before the decal step E20.
  • the decoration method comprises a step of depositing an optional layer E3, preferably having a thickness of between 0.2 and 1 ⁇ m, to protect the dial against oxidation and / or color.
  • the method according to the embodiment optionally comprises a step of depositing E4 with a metal layer.
  • this deposited metal comprises silver, which is sufficiently malleable to be structured during the following operations, in particular a surface structuring step E10. It is of course possible to deposit a layer of a malleable metal other than silver to facilitate the realization of machining.
  • This surface structuring step E10 comprises a decoration machining of the surface to be decorated of the watch element, which may be, according to an advantageous example, a sunburst, which consists of superficially scratching the surface of the dial with a brush and / or a paste abrasive.
  • this step may involve spraying and / or sanding.
  • a sunburst a fine line array will be made, for example in a layer of silver, as will be mentioned later and which gives the room the appearance of a sun.
  • the surface structuring achieves a shallow decoration by striking the surface of the piece in a controlled manner.
  • the tools used may be, for example, abrasive-coated pads or brushes.
  • This surface structuring step forms a surface roughness of preferably between 0.05 and 0.1 ⁇ m. So, we call surface structuring any stage which makes it possible to generate a modification of the surface to be decorated on a thin thickness, less than or equal to 1 ⁇ m, or even 0.3 ⁇ m, or even 0.1 ⁇ m.
  • This patterning forms stripes on this specified thickness, preferably sufficiently dense to be visible, and regular and organized, forming a particular pattern providing an attractive visual appearance.
  • a layer or series of coloring layers may then be optionally deposited in a step E5 preceding the decal step E20, for example via one or more galvanic layer (s), and or one or more layers formed by PVD deposition (physical vapor deposition), and / or one or more layers (s) formed by deposition ALD (atomic layer deposition, according to the acronym "Atomic Layer Deposition”), or by any other deposition technique for forming a coating that may change the perceived color of the dial. It is conceivable to deposit the colored layer on part of the dial only by masking techniques, or to deposit several different colored layers at different locations on the surface of the dial.
  • the decoration method has been illustrated previously by way of example, and it is conceivable to reverse the order of certain steps, such as to carry out the surface structuring, especially the sunburst, after a step of depositing a layer of color, for example.
  • a varnish is then deposited, then a traditional decal can be applied with markings (letters, numbers, indexes, railway, other signs) on the dial.
  • the decoration process comprises the particular E20 decal step mentioned above, distinct or including any other traditional markings mentioned above, from the pad printing plate developed in the previous step E1 described above.
  • the superposition of such decal on the previously elaborated surface allows to reach unexpected effects.
  • the completed dial may also include sconces, such as indexes with luminescent material or kittens set with precious stones.
  • the lateral and longitudinal recovery rates are between 0% and 99%; they are 0% and 95% respectively for this embodiment.
  • the power densities must be greater than the ablation threshold of the material, and are typically of the order of 4.19 ⁇ 10 6 MW / cm 2 .
  • the figure 3 shows the final decoration obtained on the dial after the stamping step E20 by pad printing, applied on a surface structure consisting of a sunburst.
  • the figure 3 represents an embodiment in which the dial was first decorated by a sunburst made on a setting layer in silver, champagne or blue color (deposited by PVD or electroplating as described above). Then, decals, for example an ink of blue, red, pink or mauve color are produced. The result is a lightening of the colors on the final result, by optical effect. From a saturated ink color, it appears on the dial a pastel color, with a good depth. Thus, in this second case, the eye is deceived and perceives a color that is not really present on the dial, but which is derived from the combination of the respective colors of the decal and the color of the sunray dial.
  • a mauve ink decal on a silver colored layer produces a resultant pastel mauve color.
  • a Blue ink decal on a champagne color layer produces a resulting soft green color.
  • the figure 4 illustrates this phenomenon using a table of values corresponding to three examples. The colors are measured by the CIE Lab method, and its three parameters L *, a *, b *.
  • the decoration method uses a surface structuring step consisting of a silver sunburst, obtained by a sunburst surface structuring step E10, carried out after a preliminary step E4 for deposition of a silver layer. .
  • the decal is made from a blue varnish, which allows to achieve a resulting decoration of pastel blue color.
  • the decal is made from a green varnish, which allows to achieve a resultant decoration of pastel green color.
  • the decal is made from a purple varnish, which allows to achieve a resultant decoration of mauve pastel color.
  • the use of the femtosecond laser is important to create a very regular pattern in the form of a very regular frame on the pad printing plate, which is necessary to obtain the effects mentioned above.
  • the femtosecond laser allows to be very precise, to define the thickness of the engraving, the depth of the engraving, the distance between the engravings very precisely. The same method that would be implemented with a tampon printing plate formed without femtosecond laser does not achieve these optical effects and ultimately does not achieve at all a decoration with the same final appearance.
  • the two types of decor combined are at least partially superimposed.
  • the impression formed by the decal defines a pattern at least partially superimposed on the surface having undergone surface structuring.
  • the printed patterns can thus cross lines printed by the decal with streaks formed by the surface patterning.
  • the invention also relates to the watch element obtained by this decoration method.
  • Such an element thus comprises relief decorations, comprising an impression obtained by pad printing superimposed on a surface patterning.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Manufacturing & Machinery (AREA)
  • Printing Methods (AREA)
  • Laser Beam Processing (AREA)
  • Decoration By Transfer Pictures (AREA)
EP15158934.8A 2015-03-13 2015-03-13 Dekorationsverfahren eines uhrelements, und anhand eines solchen verfahrens hergestelltes uhrelement Active EP3067150B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP15158934.8A EP3067150B1 (de) 2015-03-13 2015-03-13 Dekorationsverfahren eines uhrelements, und anhand eines solchen verfahrens hergestelltes uhrelement
US15/068,210 US10295961B2 (en) 2015-03-13 2016-03-11 Process for decorating a timepiece component and timepiece component obtained by such a process
JP2016048118A JP6788363B2 (ja) 2015-03-13 2016-03-11 時計部品の装飾の方法、及び当該方法で得られる時計部品
CN201610292205.0A CN105966139B (zh) 2015-03-13 2016-03-14 用于装饰时钟部件的工艺和由此工艺获得的时钟部件

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP15158934.8A EP3067150B1 (de) 2015-03-13 2015-03-13 Dekorationsverfahren eines uhrelements, und anhand eines solchen verfahrens hergestelltes uhrelement

Publications (2)

Publication Number Publication Date
EP3067150A1 true EP3067150A1 (de) 2016-09-14
EP3067150B1 EP3067150B1 (de) 2018-05-16

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US (1) US10295961B2 (de)
EP (1) EP3067150B1 (de)
JP (1) JP6788363B2 (de)
CN (1) CN105966139B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3709100A1 (de) * 2019-03-14 2020-09-16 Omega SA Verbundkomponente eines uhrwerks oder schmuckstücks mit schutz des substrats und seinem dekorelement

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CH712211A2 (fr) * 2016-03-14 2017-09-15 Nivarox Far Sa Procédé de fabrication d'un composant d'affichage d'horlogerie.
EP3378346B1 (de) 2017-03-21 2023-01-18 Omega SA Stein und sein herstellungsverfahren
EP3456859A1 (de) * 2017-09-13 2019-03-20 Rolex Sa Schutzbeschichtung für ein komplexes uhrenbauteil
EP3587626B1 (de) * 2018-06-28 2023-02-22 Comadur S.A. Dekorteil, das durch inlayarbeiten erstellt wird
CN109053228A (zh) * 2018-09-19 2018-12-21 东莞信柏结构陶瓷股份有限公司 氧化锆陶瓷表面处理方法及氧化锆陶瓷制品
EP3789830B1 (de) * 2019-09-09 2024-04-03 The Swatch Group Research and Development Ltd Zifferblatt und herstellungsverfahren eines zifferblatts für eine armbanduhr
EP3892151A1 (de) * 2020-04-06 2021-10-13 Rolex Sa Uhrenkomponente und verfahren zur herstellung einer uhrenkomponente
JP2022036481A (ja) 2020-08-24 2022-03-08 セイコーエプソン株式会社 製造方法および時計用部品
EP4001458A1 (de) * 2020-11-17 2022-05-25 The Swatch Group Research and Development Ltd Verfahren zur aufbringung einer beschichtung auf einen artikel, wie etwa eine uhrkomponente, und mit diesem verfahren beschichtete komponente
CN113290662B (zh) * 2021-05-13 2022-06-07 杭州普太科技有限公司 基于纳米喷墨打印技术的陶瓷防伪实体的制作方法

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FR2288795A1 (fr) * 1974-10-22 1976-05-21 Blosch Ag W Procede de realisation de decors de differentes structures et couleurs a partir de metal sur un substrat metallique
EP1075946A1 (de) * 1999-08-09 2001-02-14 Tampoprint GmbH Tampondruckmaschine
WO2002090116A1 (en) * 2001-05-09 2002-11-14 Streibig Daniel G Method of coloring an object
DE102011078532B3 (de) * 2011-07-01 2012-07-26 Tampoprint Ag Tampondruckmaschine

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CN101329508A (zh) * 2008-07-25 2008-12-24 西安交通大学 一种利用飞秒激光制备微纳压印模版的方法
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US20150049593A1 (en) * 2012-03-12 2015-02-19 Rolex Sa Method for engraving a timepiece component and timepiece component obtained using such a method
EP3067220B1 (de) * 2015-03-13 2018-04-18 Rolex Sa Dekorationsverfahren eines uhrelements, und anhand eines solchen verfahrens hergestelltes uhrelement

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Publication number Priority date Publication date Assignee Title
FR2288795A1 (fr) * 1974-10-22 1976-05-21 Blosch Ag W Procede de realisation de decors de differentes structures et couleurs a partir de metal sur un substrat metallique
EP1075946A1 (de) * 1999-08-09 2001-02-14 Tampoprint GmbH Tampondruckmaschine
WO2002090116A1 (en) * 2001-05-09 2002-11-14 Streibig Daniel G Method of coloring an object
DE102011078532B3 (de) * 2011-07-01 2012-07-26 Tampoprint Ag Tampondruckmaschine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3709100A1 (de) * 2019-03-14 2020-09-16 Omega SA Verbundkomponente eines uhrwerks oder schmuckstücks mit schutz des substrats und seinem dekorelement
US11687040B2 (en) 2019-03-14 2023-06-27 Omega Sa Composite timepiece or jewellery component with protection for the substrate and its decoration

Also Published As

Publication number Publication date
US20160266551A1 (en) 2016-09-15
US10295961B2 (en) 2019-05-21
CN105966139A (zh) 2016-09-28
CN105966139B (zh) 2021-07-30
JP2016173361A (ja) 2016-09-29
JP6788363B2 (ja) 2020-11-25
EP3067150B1 (de) 2018-05-16

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