• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to a watch part comprising an anti-counterfeiting component, said anti-counterfeiting component comprising a tracer. The tracer makes it possible to determine if a component is counterfeited by exposing it to irradiation, preferably infrared, by collecting and analyzing the irradiation emitted or reflected by said component, and by converting and analyzing the irradiation collected into a signal "Yes" - "no" characterizing counterfeit product.
    公开号:CH713370A1
    申请号:CH00048/17
    申请日:2017-01-16
    公开日:2018-07-31
    发明作者:Louis Olivier；Corvasce Filomeno；Palmieri Marie
    申请人:Innomaterials Sa；
    IPC主号:
    专利说明:

    Description
    Field of the Invention [0001] This invention relates to anti-counterfeiting means for watches.
    State of the art [0002] The world watch industry, and more particularly the Swiss brands, have long suffered from counterfeiting. Each year, the number of counterfeit watches sold is greater than the number of authentic watches.
    [0003] There are various ways to avoid counterfeiting.
    In general, a distinction is made in the safety devices between the visible safety devices and the hidden security devices. A combination of both is usually used.
    Visible safety devices are designed to be easily accessible to a person without experience so that it can easily verify itself the authenticity of the product with reference to certain known visible signs. Visible security devices are therefore those that can be detected without help tools or using only simple help tools.
    For the qualified identification of security elements, hidden security devices are used which are invisible without help tools and which are visible only by qualified persons, such as for example certified dealers or inspectors, customs or other authorities.
    The use of hidden security devices is disclosed for example in US 5,599,578 and WO 2015/137995.
    US 5,599,578 discloses a method of marking an object for identification which comprises applying a mark to said object using a visible ink which contains: (a ) a first component that is visible to the naked eye; and (b) a second component which is invisible to the naked eye and which is one or more of a dye only visible in the presence of ultraviolet radiation, a dye only visible in the presence of infrared radiation, an ink which has a measurable electrical resistivity or a biological marker selected from one or more of a protein, an amino acid, a DNA, a polypeptide, a hormone or an antibody.
    [0009] WO 2015/137995 discloses a pattern printing system on a substrate comprising an ink for converting infrared radiation to visible radiation, said ink comprising β-NaYF4 comprising nanocrystals which contain at least two metals belonging to the group of lanthanides. Inks are useful for producing high-resolution patterns for security applications, among others.
    In the specific field of luxury goods such as watches, several means have been envisaged to prove their authenticity, such as the use of optically variable pigments, holograms, barcodes, QR codes, etc. . However, counterfeiters still manage to get around them relatively easily, since they can easily identify the items to be copied. SUMMARY OF THE INVENTION [0011] The present invention aims to provide anti-counterfeiting means for watches that can not be easily circumvented by counterfeiters.
    For this purpose, a watch part comprising an anti-counterfeiting component, a method of producing said component and the use of the watch part in a method for detecting a counterfeit product are proposed in the appended claims.
    DETAILED DESCRIPTION OF THE INVENTION [0013] The present invention relates to the marking of watches in order to verify their authenticity and more particularly relates to the use of selectively perceptible marks intended for the marking of watches in order to protect them from any counterfeiting.
    The present invention provides hidden anti-counterfeiting means part of a watch, namely the watch band, or being integrated into any part of the watch band and / or the watch case.
    By the term "hidden" the present invention indicates that the anti-counterfeiting means are not visible when the watch is worn on the wrist or the anti-counterfeiting means are part of the aesthetic elements of the watch.
    The inventors have discovered that the anti-counterfeiting means for watch are provided by an elastomer comprising one or more tracer (s) absorbing electromagnetic radiation in a wavelength region which is bathochromic (between 700 and 5000 nm) or hypsochrome (between 100 and 380 nm) with respect to the spectrum of visible light, and emitting light in the region of visible wavelengths, said emitted light being detected by a specific reader.
    Preferably, the tracer absorbs the electromagnetic radiation in the wavelength range of the infrared between 700 and 5000 nm, preferably between 700 and 3000 nm.
    The elastomer of the anti-counterfeiting component may be of various kinds, such as a natural rubber, a silicone rubber, a nitrile rubber, but it is preferably a fluoroelastomer. This latter polymer is preferably characterized by a fluorine content of between 55 and 75% by weight, preferably between 60 and 70% by weight.
    Representative fluoropolymer elastomers include copolymers of one or more fluorine-containing monomers, such as vinylidene fluoride, hexafluoropropylene, pentafluoropropylene, tetrafluoroethylene, chlorotrifluoroethylene and perfluoroalkyl vinyl ether, preferably perfluoromethylvinyl ether as well as monomers containing no fluorine, such as ethylene and / or propylene.
    [0020] Preferably, the elastomer comprises electromagnetic radiation absorbing components (tracers) in the wavelength range outside the visible light spectrum (<350 nm or> 700 nm), serving as anti-radiation components. -confrontation, and optionally pigments, reflecting or absorbing electromagnetic radiation in the wavelength range between 350 and 700 nm, serving as coloring components.
    The tracer, following the absorption of electromagnetic radiation with a wavelength of less than 350 nm, or greater than 700 nm, is preferably characterized by an emission spectrum that is at least partially different, namely at less partially not overlapping the absorption spectrum of the dye components.
    The tracer of the present invention comprises one or more compounds (A), selected from the group consisting of an oxide, a halide, a chalcogenide, an oxyhalide, an oxysulphide, a fluoroarsenate and a fluoroindate of one or more elements selected from the group consisting of Li, Na, K, Mg, Ge, Ga, Al, Pb, Cd, Ba, Mn, Nb, Ta, Cs, Y elements; , Nd, Gd, Lu, Rb, Se, Bi, Zr and W, doped with at least one transition metal ion, a lanthanide ion and / or an actinide ion, or a mixture of two or more of these, the doping ions being selected from the group consisting of Ti2 +, Cr3 +, Ni2 +, Mo3 +, Re4 +, Os4 +, Pr3 +, Nd3 +, Gd3 +, Dy3 +, Ho3 +, Er3 +, Tm2 +, U3 + and U4 + ions; and optionally a transparent matrix (B) comprising one or more components selected from the group consisting of silicon dioxide, hydrated silicon oxide, aluminum oxide, hydrated aluminum oxide, magnesium oxide and the like. magnesium oxide, titanium dioxide and hydrated titanium dioxide; the weight ratio of the transparent inorganic matrix (B) to the components (A) is between 0.2 and 60, preferably between 0.5 and 30, more preferably between 1 and 10, and the tracer is characterized by a shape flake having a length and a width of between 1 and 300 μm and a thickness of between 0.05 and 15 μm.
    The preferable tracers are mixtures of oxyhalides, oxysulfides or multi-doped compounds.
    [0024] The mixtures which comprise yttrium oxysulfide and one or more compounds selected from gadolinium oxysulfide, ytterbium oxysulfide, erbium oxysulfide and thulium oxysulfide are preferred.
    Preferred tracers comprise a mixture of yttrium oxysulfide and gadolinium oxysulfide or a mixture of ytterbium oxysulfide and erbium oxysulfide.
    Particularly preferred tracers for the absorption of ultraviolet radiation and the emission of electromagnetic radiation in the visible light spectrum are doped metal oxides, doped metal sulfides, metal oxysulfides of the lanthanide group or a mixture such as, for example, ZnS / Cu, Gdoxysulphide, Y-oxysulphide or mixed oxides, for example Ba / Mg aluminates. As mentioned above, these tracers may also comprise a transparent matrix.
    The tracers may also be in encapsulated form, the capsule being made of an inorganic material or organic polymers used to protect the core material.
    The tracers may further comprise a coating coating them completely. The additional coating is preferably one or more inorganic dielectric materials such as metal oxides, hydrated metal oxides or mixtures thereof, mixed metal oxides, suboxides, oxynitrides or metal fluorides.
    Particularly suitable tracers are colorless metal oxides, such as TiO 2, SnO 2, SiO 2, Al 2 O 3, ZrO 2, B2O 3 and ZnO, and the hydrated oxides thereof.
    The material used for the coating may correspond to the material of the matrix (B) or be different therefrom.
    The coatings which consist of a plurality of layers are also possible. The additional coating (s) will be used to modify the surface of the tracer.
    If a colored elastomer is required, the elastomer further comprises pigments including organic and inorganic pigments, natural and synthetic, well known to those skilled in the field of coloring polymers.
    The elastomer of the present invention comprises between 0.0001 and 10% by weight, preferably between 0.001 and 5% by weight, more preferably between 0.01 and 1% by weight of one or more tracer (s). ).
    The elastomers are also typically formulated with pigments, fillers and other additives such as manufacturing aids and antioxidants usually used in the treatment of polymers, which is followed by their shaping or shaping in the desired configuration. Crosslinking agents may be added to develop a three-dimensional structure imparting strength and shape stability.
    The tracer (s) and coloring pigments, fillers, crosslinking agents and optional additives are first mixed dry with the elastomer granules, which is followed by a melt mixing, preferably in a high shear mixing device such as an extruder at moderately high temperatures, for example in the range between 80 and 140 ° C, preferably between 90 and 130 ° C, whereby the intimate mixture is formed or shaped in the desired configuration, preferably by molding, compression or injection or by a combination thereof.
    The tracers are preferably added in the form of one or more masterbatches, each of said masterbatches comprising an intimate mixture comprising between 50 and 70% by weight, preferably between 55 and 65% by weight of a support. of polymer and 30 to 50% by weight, preferably 35 to 45% by weight of one or more tracer (s). For example, the polymer support may be an elastomer and preferably a fluoroelastomer or an olefinic (co) polymer.
    In the case of compression molding, a preform of the intimate mixture is created by compressing the mixture under a pressure of 1 to 100 MPa and preferably 5 to 30 MPa at a temperature below the hardening temperature of the mixture. constituent element of the polymer. The preform is heated at a high temperature for a period of between 1 and 45 minutes. Next, the preform is placed between mold plates heated to a temperature in the range of 140 to 250 ° C. The mold plates are tightened to a clamping pressure of between 1 and 15 MPa and the gas trapped in the mold is discharged by means of a degassing step in which a vacuum is applied. The degassing step lasts about 1 minute. After degassing, the clamping pressure of the mold is increased to a pressure of between 5 and 75 MPa. Then, the mold is cooled to a temperature in the range of 80 to 150 ° C, and the workpiece is removed from the mold.
    In the case of injection molding, the intimate mixture is injected into the mold at a temperature between 140 and 250 ° C. The injection pressure is between 10 and 500 MPa. The injection step lasts about 1 to 60 seconds. After the injection, the piece can be retained in the mold before being ejected.
    In some cases, it may be desirable to employ a combination of injection / compression molding processes in which the injection molded structure is subjected to a compression step.
    The elastomer comprising one or more tracer (s) can be converted into the rubber formulation for a watch strap, or, for the particular case in which an authentic leather or metal or polymer bracelet is required, a piece of elastomer comprising tracers can be integrated, hidden or placed in an area of the bracelet not visible from the outside.
    Alternatively, a piece of elastomer comprising anti-counterfeit components may be incorporated or hidden on the watch case or inside the watch case on any component of the watch as long as these components may be exposed to irradiation by reading light.
    In yet another embodiment, the piece of elastomer comprising the tracer (s) may be incorporated or hidden in both the watch strap and the watch case.
    The piece of elastomer intended to be incorporated on the case and / or the watch band may have any geometric shape and have a thickness in the range of 10 pm to 5000 pm and dimensions in the range of 1. mm to 50 mm.
    To authenticate a watch, a specific part of the watch, including the elastomer, is subjected to irradiation by the reader, preferably an infrared irradiation, while its emission / reflection is analyzed.
    Each tracer, following the absorption of radiation from a specific irradiation source emitting electromagnetic radiation according to a specific emission spectrum, has a typical emission / reflection spectrum in the range of lengths. wave between 350 and 700 nm.
    Each combination of two or more tracers will produce a characteristic emission / reflection spectrum under the effect of irradiation.
    A type of authentic watch (make / model) comprising a specific combination of tracers will produce a typical emission spectrum under the effect of irradiation by a specific irradiation source.
    权利要求:
    Claims (17)
    [1]
    The emission spectrum is therefore an imprint of a type of authentic watch (make / model). The same type of watch that does not produce an emission spectrum or a different emission / reflection spectrum (thus not detected by the reader) will be considered as a counterfeit product. Preferably, the light source and the detector for determining and analyzing the emission spectrum (spectrometer) are combined into a device, preferably a portable device. The characteristic emission spectrum, determining either a counterfeit watch or an authentic watch, is preferably converted into an electrical signal which is translated into a visual and / or sound signal indicating "yes" or "no", characterizing either the counterfeit product or the original / authentic product. Preferably, the portable device comprising an irradiation source having a specific emission spectrum is equipped for the analysis of the emission spectra of one or more tracer combinations, which makes it possible to verify the authenticity of a model or several models of a specific brand. Alternatively, in a more complete and more sophisticated version, the portable device, comprising an irradiation source having a specific emission spectrum, makes it possible to verify the authenticity of a complete range of models of a brand. watch or the full range of models of different brands. claims
    Watch part comprising an anti-counterfeiting component, said anti-counterfeiting component comprising a tracer.
    [2]
    The watch part according to claim 1, wherein the anti-counterfeiting component comprises one or more polymer (s), preferably an elastomer, containing the tracer.
    [3]
    The watch portion according to claim 1 or 2, wherein said tracer is characterized by an absorption spectrum located outside the visible light spectrum and an emission spectrum in the visible light spectrum.
    [4]
    A watch part according to any one of the preceding claims, wherein said tracer is characterized by an absorption spectrum in the wavelength range of the infrared between 700 and 5000 nm and an emission in the range wavelengths between 350 and 700 nm.
    [5]
    A watch portion according to any one of the preceding claims, wherein the anti-counterfeiting component is a fluoroelastomer comprising one or more polymerized monomers selected from the group consisting of vinylidene fluoride, tetrafluoroethylene, pentafluoropropylene, hexafluoropropylene, perfluoromethylvinyl ether, chlorotrifluoroethylene and non-fluorinated C2-C8 olefins.
    [6]
    Watch part according to any of the preceding claims, wherein the anti-counterfeiting component comprises between 0.0001 and 10% by weight, preferably between 0.001 and 5% by weight, more preferably between 0.01 and 1. % by weight of the tracer.
    [7]
    A watch portion according to any one of the preceding claims, wherein the anti-counterfeiting component comprises one or more pigments having one or more absorption (s) in the wavelength range between 350 and 700 nm.
    [8]
    A watch portion according to any one of the preceding claims, wherein the anti-counterfeiting component is the watch band or part of the watch band.
    [9]
    The watch portion according to claims 1 to 7, wherein the anti-counterfeiting component is part of the watch case or any part within the watch case.
    [10]
    The watch portion according to any one of the preceding claims, wherein said tracer comprises one or more chemical compounds selected from the group consisting of an oxide, a halide, a chalcogenide, an oxyhalide, a an oxysulfide, a fluoroarsenate and a fluoroindate of one or more elements selected from the group consisting of Li, Na, K, Mg, Ge, Ga, Al, Pb, Cd, Ba, Mn, Nb elements; , Ta, Cs, Y, Nd, Gd, Lu, Rb, Se, Bi, Zr and W, doped with at least one transition metal ion, a lanthanide ion and / or an actinide ion, or a mixing two or more thereof, said doping ions being selected from the group consisting of TÌ2 +, Cr3 +, NÌ2 +, Mo3 +, Re4 +, Os4 +, Pr3 +, Nd3 +, Gd3 +, Dy3 +, Ho3 +, Er3 +, Tm2 +, U3 + and of U4 +.
    [11]
    The watch portion according to any one of the preceding claims, wherein said tracer comprises a transparent inorganic matrix.
    [12]
    The watch portion of claim 10 or 11, wherein the weight ratio of the transparent inorganic matrix to the chemical compounds is from 0.2 to 60, preferably from 0.5 to 30, more preferably from 1 to 10.
    [13]
    The watch portion according to claim 11 or 12, wherein the transparent inorganic matrix is made of a material selected from the group consisting of silicon dioxide, hydrated silicon oxide, aluminum oxide, hydrated aluminum oxide, magnesium oxide, titanium dioxide and hydrated titanium dioxide.
    [14]
    14. Watch comprising the watch portion according to any one of the preceding claims.
    [15]
    The process for producing the anti-counterfeiting component according to any one of claims 2 to 13, comprising subjecting a mixture comprising one or more polymer (s) and one or more tracer (s) to an injection molding. or compression molding.
    [16]
    16. The method of claim 15, wherein the mixture of polymer (s) and tracer (s) is obtained from the mixture of a master batch of one or more tracers with (x) polymer (s), said masterbatch comprising an intimate mixture comprising between 50 and 70% by weight, preferably between 55 and 65% by weight of polymer, preferably elastomer, more preferably fluoroelastomer, or an olefinic (co) polymer and from 30 to 50% by weight, preferably from 35 to 45% by weight of one or more tracer (s).
    [17]
    Use of the watch portion according to any one of claims 1 to 13 in a method of detecting a counterfeit product, said method comprising: a) exposing the anti-counterfeiting component of the watch, susceptible to to be counterfeited, to irradiation, preferably to infrared irradiation; b) the collection and analysis of the irradiation emitted or reflected by the anti-counterfeiting component of the watch; and c) the conversion of the irradiation collected and analyzed into a "Yes" - "No" signal characterizing a counterfeit product.
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    同族专利:
    公开号 | 公开日
    CH713370B1|2021-05-14|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JPH06306315A|1993-04-23|1994-11-01|Hitachi Maxell Ltd|Method of distinguishing real product|
    US20140160904A1|2012-12-11|2014-06-12|Sicpa Holding Sa|Method and system for authenticating a timepiece|
    US20150014984A1|2013-07-10|2015-01-15|Sicpa Holding Sa|Unique identifier and high security device related to said unique identifier|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CH00048/17A|CH713370B1|2017-01-16|2017-01-16|Watch part including an anti-counterfeiting component.|CH00048/17A| CH713370B1|2017-01-16|2017-01-16|Watch part including an anti-counterfeiting component.|
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