EP1636765B1 - Document de valeur comprenant une marque d'authenticite lisible par machine - Google Patents

Document de valeur comprenant une marque d'authenticite lisible par machine Download PDF

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Publication number
EP1636765B1
EP1636765B1 EP04739618.9A EP04739618A EP1636765B1 EP 1636765 B1 EP1636765 B1 EP 1636765B1 EP 04739618 A EP04739618 A EP 04739618A EP 1636765 B1 EP1636765 B1 EP 1636765B1
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EP
European Patent Office
Prior art keywords
marking substance
authenticity
authenticity mark
security
infrared
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.)
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EP04739618.9A
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German (de)
English (en)
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EP1636765A1 (fr
Inventor
Gerhard Stenzel
Wittich Kaule
Gerhard Schwenk
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Giesecke and Devrient GmbH
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Giesecke and Devrient GmbH
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Publication of EP1636765A1 publication Critical patent/EP1636765A1/fr
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    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
    • G07D7/06—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using wave or particle radiation
    • G07D7/12—Visible light, infrared or ultraviolet radiation
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
    • G07D7/004—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using digital security elements, e.g. information coded on a magnetic thread or strip
    • G07D7/0043—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using digital security elements, e.g. information coded on a magnetic thread or strip using barcodes

Definitions

  • the invention relates to a value document, a security element and a security paper with a machine-readable authenticity mark.
  • the invention also relates to a method for checking the authenticity of such value documents, a security element or a security paper.
  • Security documents such as banknotes, stocks, bonds, certificates, vouchers, checks, high-quality admission tickets, but also other papers that are prone to counterfeiting, such as passports or other identification documents, are usually provided with various security features to increase the security against counterfeiting.
  • the security feature used is, for example, a security thread embedded in the banknote, an applied security strip or a self-supporting transfer element, such as a patch or a label, which is applied to a value document after its manufacture.
  • the document describes EP 0 340 898 A2 a security coding which appears colorless or only slightly colored in the visible spectral range, and which has a significant absorption in the near infrared, in particular at a wavelength between 750 nm and 1000 nm.
  • the security coding it is overprinted with a second colored marking which is colored in the visible spectral range and which is transparent in the infrared spectral range.
  • infrared detectors which are sensitive in the wavelength range of 780 nm to 800 nm, and with which the infrared absorption of the security coding can be detected.
  • Such infrared detectors are now commercially available and widely used.
  • the protection against counterfeiting by the security coding described can therefore no longer be estimated to be particularly high, since the portion of the coding that is invisible to the human eye can be detected by anyone without any special effort. This results in starting points for unauthorized imitations or adjustments of the security coding of EP 0 340 898 A2 ,
  • a security feature is machine readable, since then, for example in a banknote processing machine, an automatic authenticity check of a large number of value documents can be carried out in a short time.
  • an obscure or owner-unobservable review of a document or a protected item is often sought, which typically can only be done using a machine-readable security feature.
  • the object of the present invention is to specify a mark of authenticity for documents of value and other items to be protected, which avoids the disadvantages of the prior art and ensures increased security against counterfeiting.
  • the authenticity mark should be machine-readable.
  • a security element for securing an object a security paper for the production of security or security Security documents, methods for checking the authenticity of said objects and a device for performing the authenticity check are the subject of the independent claims. Further developments of the invention are the subject of the dependent claims.
  • the value document, security element and security paper according to the invention builds on the state of the art in that the authenticity mark comprises a luminescent marking substance and a marking substance which absorbs in the infrared spectral range. It has been found that when using only one marker, the analysis and imitation of the authenticity mark are relatively easily possible, since always only one property of the marker has to be recognized and imitated. If, on the other hand, several substances are combined which have the same or very similar effects, for example different fluorescences, then the two properties can influence one another in the detection, so that successful detection can no longer be guaranteed in all cases.
  • the markers do not interfere in the combination according to the invention, since the detection of different material properties are queried. Furthermore, the infrared-absorbing tracer provides no active signal for the analysis of the substances contained, so that the analysis is made significantly more difficult for the counterfeiter. On the other hand, the analysis or adjustment of luminescent markers is comparatively simple, since the emitted radiation can easily be made visible by irradiation of a broad spectral range.
  • the luminescent marker emits above 1200 nm. This has the advantage that the luminescence can not then be detected with conventional and readily available infrared detectors, which are sensitive mainly in the wavelength range of 780 to 800 nm. Due to the silicon band gap of 1.12 eV, conventional silicon photodiodes do not permit the detection of infrared radiation with wavelengths above about 1100 nm. Detectors for longer-wave infrared radiation are considerably more complicated and are not available to everyone.
  • the luminescent marking substance emits in the absorption region of the infrared-absorbing marking substance. This makes it possible to exploit the already mentioned interaction effects of the two markers.
  • the excitation of the luminescent marking substance advantageously also takes place in the infrared spectral range, preferably in the spectral range from about 800 nm to about 1000 nm.
  • the infrared-absorbing marking substance in the visible spectral range is essentially colorless or has only a weak intrinsic color. He is then invisible under ordinary lighting conditions or appears only slightly striking.
  • the infrared-absorbing marker may be transparent in the visible. Even at a wavelength of about 800 nm, the infrared-absorbing marker advantageously still has no significant absorption in order to escape the detection by commercially available infrared detectors.
  • the infrared-absorbing marker preferably only in the spectral range between about 1200 nm and about 2500 nm, preferably in the spectral range between about 1500 nm and about 2000 nm.
  • the infrared absorption of the authenticity mark is then not detectable at the wavelengths of conventional infrared detectors, but only occurs in the longer wavelength and more difficult to access spectral range above 1200 nm, or above 1500 nm.
  • Preferred infrared-absorbing markers have in the visible spectral range less than about 40%, in particular less than about 25% of the absorption in the range of 1200 nm to 2500 nm or in the range of 1500 nm to 2000 nm, based in each case on the area below Absorption curve for the respective spectral range.
  • infrared-absorbing markers for example, materials based on doped semiconductor materials are used. Also, a metal oxide-containing substances are suitable. These are characterized in particular by their aging resistance.
  • the infrared-absorbing marker is preferably in particle form with an average particle size smaller than 50 ⁇ m. As a result, visible light is only slightly scattered by the particles, so that the marking substance is colorless or has only a weak intrinsic color.
  • Examples of infrared absorbers which show no appreciable absorption neither in the visible nor at about 800 nm are about 2,5-cyclohexadiene-1,4-diylidenes bis [N, N-bis (4-dibutylaminophenyl) ammonium] bis (hexafluoroantimonates). with the empirical formula C 62 H 92 N 6 F 12 Sb 2 , or the dyes ADS 990 MC with the empirical formula C 32 H 30 N 2 S 4 Ni, or ADS 1120P with the empirical formula C 52 H 44 Cl 2 O 6 from Siber Hegner GmbH, Hamburg, dar.
  • the luminescent marker may be formed on the basis of a rare earth-doped host lattice. Examples of such luminescent markers are as in the document WO 99/38701 contain.
  • the luminescent marking substance and the infrared-absorbing marking substance are formed by separate substances which are incorporated separately into the value document or onto which the value document is applied. This allows a great deal of flexibility in the selection of the two markers in order to meet different and partially contradictory requirements, for example, in terms of safety, age resistance, wear resistance and manufacturing costs.
  • the luminescent marking substance is introduced into the document of value over its entire surface or applied to the document of value, for example printed on it.
  • the luminescent marker then gives a uniform background for an absorbance or emission measurement, which can be used, for example, as a constant reference signal in a fastness test.
  • the luminescent marking material only at selected locations, for example along predetermined tracks, on or apply.
  • the document of value may comprise a substrate, in particular a paper substrate, in the volume of which the luminescent marking substance is introduced.
  • a substrate in particular a paper substrate
  • the pigment particles used for marking are admixed to a gas stream or a liquid stream and introduced into a paper web.
  • the methods are particularly suitable for marking security paper that is used for the production of security or value documents, such as banknotes, identity cards or the like.
  • the luminescent marker may be added to a coating slip or may be applied to the surface of a document of value or to the substrate materials used to make it together with surface sizing.
  • the luminescent marker can also, for example by coextrusion, can be introduced.
  • the infrared-absorbing marking substance is preferably applied to the value document, in particular it is printed on the document of value.
  • all suitable printing methods can be used. Ink jet printing is particularly preferred because it also allows curved surfaces to be printed in a simple manner and an individualization of the imprint for different items is easily possible.
  • the arrangement of the infrared-absorbing marking substance represents information, such as patterns, characters or codes.
  • the information is preferably encrypted.
  • the information shown may be for example a logo, a national emblem, a lettering or a letter / number combination.
  • the arrangement of the infrared-absorbing marking substance forms a barcode.
  • the term "barcode” encompasses any one-dimensional or two-dimensional pattern of black bars and white bars (gaps).
  • the bar / space sequence represents a binary sequence of numbers.
  • the barcode can be read for example with an optoelectronic scanner by the radiation of a light emitting diode or laser diode is guided over the bars and the scattered light is picked up by a photodetector and fed to an evaluation that extracts the encoded information from the pulse sequence obtained. Barcodes can be read very well by machine and deliver an almost error-free reading result, especially in connection with check digits.
  • Suitable barcodes are universal formats such as the Code 2/5, the Code 2/5 Interleaved, the Code 128, or the Code 39, but also special formats such as the commercially available codes UPC, EAN-8 or EAN-13 , Two-dimensional barcodes which provide a particularly highly condensed recording can also be advantageously used within the scope of the invention.
  • the code 2/5 Interleaved is described, which is used for purely numerical codes. In this case, five elements (bars or gaps) are used per utility. Two of these five are wide elements, the remaining three elements are narrow. Straight line symbols are represented by a gap and an odd position by a bar.
  • Code 39 which uses a bar code representation of 9 elements (5 bars and 4 spaces), three of which are wide and six narrow, both numbers and letters can be represented. For example, this can be used to code the national currency (EUR, USD, etc.) and value numbers or other data, such as the issue date of the banknote, on a banknote.
  • the luminescent marking substance and the infrared-absorbing marking substance are present in overlapping regions of the value document. Then, for example, the partial absorption of the luminescence emission by the infrared-absorbing marking substance can be used as an indirect and difficult to emulate readout process.
  • the document of value has a printed layer which partially or completely covers the regions of the document of value provided with the infrared-absorbing marking substance.
  • the print layer may be opaque in the visible spectral region and transparent or translucent in the absorption region of the infrared-absorbing marker so that it obscures the presence of the infrared-absorbing label in the visible, but does not hinder the detection of infrared absorption at a test wavelength.
  • the print layer is opaque in the emission region of the luminescent marker to enable differential reading of an infrared absorbing label, as described below.
  • the printing layer is applied to the document of value using a gravure printing technique.
  • the machine-readable authenticity mark is large-area, in particular with an area of 100 mm 2 or more, preferably with an area of 400 mm 2 or more.
  • Such a large-area authenticity mark is particularly suitable for the marking of banknotes, since most cash handling machines have transport belts that cover parts of the banknote.
  • large-scale license plates can be read more easily and with less expensive readers.
  • a larger area is advantageous for the infrared luminescent part of the authenticity mark a larger area.
  • the infrared-absorbing tracer and / or the luminescent tracer is incorporated in the registration mark with a coverage of 30% or more, preferably about 50%.
  • the invention comprises a security element for securing an object with a machine-readable authenticity mark of the kind described above in connection with the value document.
  • the security element can in particular be detachably arranged on a carrier layer.
  • the security element as a label, seal, transfer tape, or band is designed as a different planar transfer element and can be applied to any objects to be protected, for example on packaging or wrapping, but also on securities and other security documents.
  • the invention also includes a security paper for the production of security or value documents, such as banknotes, identity cards or the like, with a machine-readable authenticity mark, as described above in connection with the value document.
  • security or value documents such as banknotes, identity cards or the like
  • the issue of the authenticity mark is determined on two opposite sides of the document of value, security element or security paper and the authenticity evaluation is carried out on the basis of a comparison of the emission from the opposite sides.
  • the determination of the emission is advantageously carried out in a spatially resolved manner.
  • the signal of one side for example the back of a banknote, can then be used as a reference signal relative to which the signal of the other side, for example the front side, can be evaluated.
  • the authentication can be performed based on a comparison of the emission from the opposite sides.
  • the absorption of the authenticity mark is advantageously determined by means of a measurement, in particular a spatially resolved measurement, of the transmitted and / or remitted infrared radiation.
  • This process variant is based on an interaction between the two markers.
  • the method requires that the excited luminescent marker emit in the absorption region of the infrared absorbing label.
  • the absorption is then not determined by a remission or transmission measurement, but shows itself after excitation of the luminescent marker in a locally suppressed luminescence.
  • the absorption measurement is preferably carried out spatially resolved. It is understood that this variant can also be combined with the two methods described above.
  • the authenticity test can additionally be replaced by the absorption of the authenticity mark at a wavelength from the visible spectral range can be determined.
  • the infrared-absorbing marking substance is not replaced by a simple infrared absorber, which can also be seen in the visible.
  • the irradiation of the authenticity mark is advantageously carried out with a light-emitting diode or a laser diode.
  • a light-emitting diode or a laser diode Particularly suitable are laser diodes, for example with an emission wavelength of 1550 nm.
  • the information in a particularly preferred variant of the method comprises the denomination, the currency, the emission date , the country, the printer, or features of the document of value or security element, and one or more of said information will be read out and further processed during the authentication process.
  • the described methods can be implemented advantageously in particular with a money processing machine, a banknote counting machine, a banknote sorting machine, a banknote reader for the blind or visually impaired, a banknote reader for the variety business or a banknote validator in pocket format.
  • an infrared-absorbing label has significant advantages over conventional fluorescence codings.
  • the automatic readability of the marking is significantly less disturbed by an underlying background pressure.
  • the signal-to-noise ratio of a measuring head is also significantly better for remission measurements than for fluorescence measurements, so that a higher resolution can be achieved.
  • Fig.1 shows a schematic representation of a banknote 10, which is provided in a partial area 12 with a machine-readable authenticity mark.
  • the construction of the authenticity mark is best in the in Fig. 2 (a) to see cross section of the portion 12 shown.
  • the authenticity mark comprises a marking substance which luminesces in the infrared spectral range and which is introduced in the form of particles 14 into the volume of the fleece-like bank note substrate 16.
  • the particles 14 may be added to the paper or pulp prior to sheet formation or may be introduced into the fiber matrix after film formation.
  • the luminescent particles 14 are distributed substantially uniformly over the substrate volume.
  • the authenticity mark further comprises an infrared-absorbing marking substance, which is printed in the partial region 12 in the form of a bar code 20 on the front side 18 of the banknote.
  • the barcode 20 contains a fixed bar code, a unique identifier of the national currency, value numbers and an indication of the year of issue of Banknote.
  • the infrared-absorbing marking substance is transparent in the visible spectral range up to wavelengths of about 800 nm, so that the presence of the bar code 20 and in particular its information content for the user with the naked eye are not visible.
  • the infrared absorbing bar code 20 is also transparent in the near infrared, it can not be detected even with commercially available silicon-based infrared detectors that are sensitive at about 800 nm.
  • Fig. 2 (b) schematically shows the course of the measured infrared absorption along the in Fig. 2 (a) specified length 1.
  • the maximum values 0 and 1 indicate the limits of the sub-area 12.
  • the information encoded in the barcode 20 can be read from the position and width of the absorption peaks 22 and the absorption gaps 24.
  • the infrared luminescence of the luminescent marking substance 14 can be checked on the front or back side of the banknote 10 as an additional authenticity feature.
  • the luminescent marker is not arranged in the volume of the security substrate 30, but applied in the form of a luminescent coating 32 on the back 34 of the substrate.
  • the luminescent coating 32 may be a coating compound added with luminescent particles, a surface sizing agent, a topcoat paint, a lacquer coating or a cover film act.
  • an infrared absorbing bar code 38 is printed on the front side 36 of the substrate.
  • Fig. 4 shows an article to be secured 40 with a glued security element 42 which has been transferred from a transfer film to the article 40.
  • the security element 42 comprises an infrared-absorbing layer 44 with an infrared-absorbing marking substance of the type described above and a luminescent layer 46 arranged congruently above it.
  • the luminescent marking substance of the luminescent layer 46 is chosen such that it lies at the test wavelength of 1550 nm at which Infrared absorbing layer 44 is absorbed, transparent, so that the coded in the layer 44 information can be read by a spatially resolved measurement of the reflected infrared radiation. In the visible spectral range, the presence of the infrared absorbing layer 44 is hidden by the luminescent layer 46.
  • FIG Fig. 5 A further embodiment of a banknote according to the invention is shown in FIG Fig. 5 shown. It shows Fig. 5 (a) a cross section in the area of the authenticity mark of the banknote as in Fig. 2 (a) , The same elements are provided with the same reference numerals.
  • the banknote differs from the Fig. 5 above all by the imprint 50 executed in intaglio printing with an opaque in the visible spectral range, at the test wavelength of the infrared-absorbing marking substance, in the exemplary embodiment 1550 nm, but transparent printing ink.
  • the intaglio printing also generally leads to a tactile relief structure with a strong embossment in the printing area 50, which is not shown in the figure for the sake of simplicity.
  • the imprint 50 covers part of the infrared barcode 20, so that in this case also a visibly imperfect or not completely transparent infrared-absorbing marking substance can be used. Although then a part of the bar code 20 is visible, but another part hidden by the imprint 50. A counterfeiting attempt by reproduction of the visible part of the barcode 20 then becomes evident at the latest when measuring the overprinted part of the barcode 20.
  • FIG. 5 (b) A measurement of the infrared absorption on the front of the bill along the length 1 of the authenticity mark is in Fig. 5 (b) shown. Since the imprint 50 is transparent at the test wavelength, essentially the same absorption curve 52 results as in the exemplary embodiment of FIG Fig. 2 ,
  • Fig. 5 (c) shows the course of the measured on the back of the bill luminescence emission at a test wavelength of 1550 nm after excitation with infrared radiation in the wavelength range of 800 nm to 1000 nm. This results in a constant emission signal 54, which can serve as a reference for a front side measurement.
  • Fig. 5 (d) finally shows the measured on the front of the bill luminescence emission.
  • the luminescence radiation is absorbed by the infrared-absorbing marking substance, so that corresponding gaps in the measured luminescence profile 56 occur. In the gaps of the bar code 20, the luminescence, depending on the permeability of the ink compared to the value outside the print 50 may be reduced (reference numeral 58).
  • Fig. 6 shows yet another embodiment of a banknote according to the invention, in which, in a modification to the embodiment of Fig. 5 of the luminescent marker 14 emitted at about 1310 nm.
  • the infrared absorbing bar code 20 absorbs at both 1310 nm and 1550 nm test wavelength.
  • the intaglio print 60 is transparent to the test wavelength of 1550 nm, but absorbs in both the visible and emission wavelengths of the luminescent label.
  • results in the in Fig. 6 (b) shown infrared absorption measurement at the test wavelength of 1550 nm on the front of the bill a curve 62 as in Fig. 5 (b) in which the absorption is given by the distribution of the bars and gaps of the barcode 20.
  • Fig. 6 (c) The course of the luminescence emission measured at the back of the banknote at a wavelength of 1310 nm is in Fig. 6 (c) shown.
  • Fig. 5 (c) a constant reference signal 64.
  • Fig. 6 (d) finally shows the luminescence emission 66 measured at the front side of the banknote at a wavelength of 1310 nm.
  • the luminescence radiation is absorbed both by the bars of the barcode 20 and by the imprint 60, so that no luminescence can be measured at these locations.

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  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
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Claims (26)

  1. Marque d'authenticité lisible par machine en tant que constituant d'un élément de sécurité destiné à la protection d'un objet, en tant que constituant d'un document de valeur ou en tant que constituant d'un papier de sécurité destiné à la fabrication de documents de sécurité ou de valeur tels que billets de banque, cartes d'identification ou objets similaires, la marque d'authenticité comprenant une substance de marquage luminescente et une substance de marquage absorbante dans le domaine spectral infrarouge, caractérisée en ce que la substance de marquage luminescente est excitable dans le domaine spectral infrarouge et émet dans le domaine d'absorption de la substance de marquage absorbante dans l'infrarouge au-dessus d'une longueur d'onde λ de 1200 nm, et en ce que
    la substance de marquage luminescente et la substance de marquage absorbante dans l'infrarouge sont constituées par des substances qui, séparément les unes des autres, sont incorporées dans le document de valeur, élément de sécurité ou papier de sécurité ou appliquées sur le document de valeur, élément de sécurité ou papier de sécurité, et en ce que
    la substance de marquage luminescente et la substance de marquage absorbante dans l'infrarouge se trouvent dans des zones se chevauchant mutuellement du document de valeur, élément de sécurité ou papier de sécurité, et en ce que
    le document de valeur, élément de sécurité ou papier de sécurité comporte une couche d'impression qui,
    recouvre partiellement ou entièrement des zones du document de valeur, élément de sécurité ou papier de sécurité pourvues de la substance de marquage absorbante dans l'infrarouge et qui
    est opaque dans le domaine spectral visible et
    est transparent ou translucide dans le domaine d'absorption de la substance de marquage absorbante dans l'infrarouge mais qui est opaque dans le domaine d'émission de la substance de marquage luminescente.
  2. Marque d'authenticité selon la revendication 1, caractérisée en ce que la substance de marquage luminescente est excitable dans le domaine spectral d'environ 800 nm à environ 1000 nm.
  3. Marque d'authenticité selon la revendication 1 ou 2, caractérisée en ce que, dans le domaine spectral visible, la substance de marquage absorbante dans l'infrarouge est essentiellement incolore ou ne possède qu'une faible propre couleur.
  4. Marque d'authenticité selon au moins une des revendications de 1 à 3, caractérisée en ce que la substance de marquage absorbante dans l'infrarouge absorbe notablement dans le domaine spectral situé entre environ 1200 nm et environ 2500 nm, de préférence dans le domaine spectral d'environ 1500 nm à 2000 nm.
  5. Marque d'authenticité selon au moins une des revendications de 1 à 4, caractérisée en ce que la substance de marquage absorbante dans l'infrarouge ne présente à une longueur d'onde d'environ 800 nm aucune absorption notable.
  6. Marque d'authenticité selon au moins une des revendications de 1 à 5, caractérisée en ce que la substance de marquage absorbante dans l'infrarouge comprend un matériau semi-conducteur dopé ou un oxyde métallique.
  7. Marque d'authenticité selon au moins une des revendications de 1 à 6, caractérisée en ce que la substance de marquage absorbante dans l'infrarouge se trouve sous forme de particules d'une taille moyenne de particule inférieure à 50 µm.
  8. Marque d'authenticité selon au moins une des revendications de 1 à 7 caractérisée en ce que la substance de marquage luminescente est constituée sur la base d'un réseau hôte doté d'un métal des terres rares.
  9. Marque d'authenticité selon au moins une des revendications de 1 à 8, caractérisée en ce que l'agencement de la substance de marquage absorbante dans l'infrarouge représente une information telle que motif, caractère ou codages, de préférence un code-barres.
  10. Marque d'authenticité selon la revendication 9, caractérisée en ce que l'information se trouve sous forme chiffrée.
  11. Marque d'authenticité selon au moins une des revendications de 1 à 10, caractérisée en ce que la marque d'authenticité lisible par machine est réalisée en grande surface, notamment en une surface de 100 mm2 ou davantage, de préférence en une surface de 400 mm2 ou davantage.
  12. Marque d'authenticité selon au moins une des revendications de 1 à 11, caractérisée en ce que la substance de marquage absorbante dans l'infrarouge et/ou la la substance de marquage luminescente est incorporée dans la marque d'authenticité à raison d'une couverture de surface de 30% ou davantage, de préférence d'environ 50%.
  13. Marque d'authenticité selon au moins une des revendications de 1 à 12, caractérisée en ce que c'est à pleine surface que la substance de marquage luminescente est incorporée dans le document de valeur, élément de sécurité ou papier de sécurité ou appliquée sur le document de valeur, élément de sécurité ou papier de sécurité.
  14. Marque d'authenticité selon au moins une des revendications de 1 à 13, caractérisée en ce que le document de valeur, élément de sécurité ou papier de sécurité comprend un substrat, notamment un substrat en papier, dans le volume duquel la substance de marquage luminescente est incorporée.
  15. Marque d'authenticité selon au moins une des revendications de 1 à 14, caractérisée en ce que la substance de marquage absorbante dans l'infrarouge est appliquée sur le document de valeur, élément de sécurité ou papier de sécurité, de préférence en ce qu'il est imprimé sur le document de valeur, élément de sécurité ou papier de sécurité.
  16. Marque d'authenticité selon la revendication 1, caractérisée en ce que la couche d'impression est appliquée par une technique d'impression en creux par gravure.
  17. Marque d'authenticité selon une des revendications de 1 à 16 dans un élément de sécurité, caractérisée en ce que l'élément de sécurité est agencé de manière détachable sur une couche support.
  18. Marque d'authenticité selon la revendication 17, caractérisée en ce que l'élément de sécurité est réalisé sous forme d'étiquette, de cachet, de ruban de transfert, de banderole ou d'autre élément de transfert plan.
  19. Procédé de vérification de l'authenticité d'un document de valeur, d'un élément de sécurité ou d'un papier de sécurité selon au moins une des revendications de 1 à 18, caractérisé par les étapes suivantes:
    - irradiation de la marque d'authenticité lisible par machine, par rayonnement infrarouge du domaine d'excitation de la substance de marquage luminescente,
    - détermination de l'émission de la marque d'authenticité à une longueur d'onde du domaine d'émission, la substance de marquage luminescente émettant dans le domaine d'absorption de la substance de marquage absorbante dans l'infrarouge au-dessus de 1200 nm,
    - irradiation de la marque d'authenticité lisible par machine, par rayonnement infrarouge du domaine d'absorption de la substance de marquage absorbante dans l'infrarouge,
    - détermination de l'absorption de la marque d'authenticité à une longueur d'onde du domaine d'irradiation, et
    - évaluation de l'authenticité du document de valeur, élément de sécurité ou papier de sécurité sur la base de l'émission et absorption déterminée, et
    l'émission de la marque d'authenticité étant déterminée de deux côtés opposés du document de valeur, élément de sécurité ou papier de sécurité, et l'estimation d'authenticité étant effectuée sur la base d'une comparaison de l'émission des côtés opposés.
  20. Procédé selon la revendication 19, caractérisé en ce que la détermination de l'émission est effectuée avec résolution spatiale.
  21. Procédé selon une des revendications de 19 à 20, caractérisé en ce que l'absorption de la marque d'authenticité est déterminée par une mesure du rayonnement infrarouge transmis et/ou réémis.
  22. Procédé selon au moins une des revendications de 19 à 20, caractérisé en ce que la détermination de l'absorption est effectuée avec résolution spatiale.
  23. Procédé selon au moins une des revendications de 19 à 22, caractérisé en ce que, pour la vérification d'authenticité, il est en outre déterminé l'absorption de la marque d'authenticité à une longueur d'onde du domaine spectral visible.
  24. Procédé selon au moins une des revendications de 19 à 23, caractérisé en ce que l'irradiation est effectuée avec une diode électroluminescente ou une diode laser.
  25. Procédé selon au moins une des revendications de 19 à 24, caractérisé en ce que l'agencement de la substance de marquage absorbante dans l'infrarouge représente une information, notamment un code-barres, qui est lue pour la détermination de l'absorption ou de l'émission et utilisée pour la vérification d'authenticité.
  26. Procédé selon la revendication 25, caractérisée en ce que l'information comprend la dénomination, la devise, la date d'émission, le pays, l'imprimerie ou des caractéristiques d'équipement du document de valeur, élément de sécurité ou papier de sécurité, une ou plusieurs des informations mentionnées étant, lors de la vérification d'authenticité, lues et traitées subséquemment.
EP04739618.9A 2003-06-12 2004-06-04 Document de valeur comprenant une marque d'authenticite lisible par machine Expired - Lifetime EP1636765B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10326983A DE10326983A1 (de) 2003-06-12 2003-06-12 Wertdokument mit einem maschinenlesbaren Echtheitskennzeichen
PCT/EP2004/006066 WO2004111951A1 (fr) 2003-06-12 2004-06-04 Document de valeur comprenant une marque d'authenticite lisible par machine

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EP1636765A1 EP1636765A1 (fr) 2006-03-22
EP1636765B1 true EP1636765B1 (fr) 2013-12-25

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EP04739618.9A Expired - Lifetime EP1636765B1 (fr) 2003-06-12 2004-06-04 Document de valeur comprenant une marque d'authenticite lisible par machine

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US (1) US20060131425A1 (fr)
EP (1) EP1636765B1 (fr)
CN (1) CN1799072A (fr)
DE (1) DE10326983A1 (fr)
RU (1) RU2345419C2 (fr)
WO (1) WO2004111951A1 (fr)

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Also Published As

Publication number Publication date
RU2345419C2 (ru) 2009-01-27
EP1636765A1 (fr) 2006-03-22
DE10326983A1 (de) 2004-12-30
WO2004111951A1 (fr) 2004-12-23
US20060131425A1 (en) 2006-06-22
CN1799072A (zh) 2006-07-05
RU2006100105A (ru) 2007-08-27

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