EP2059397B1 - Document de sécurité et / ou de valeur à particules sers - Google Patents

Document de sécurité et / ou de valeur à particules sers Download PDF

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Publication number
EP2059397B1
EP2059397B1 EP07801330.7A EP07801330A EP2059397B1 EP 2059397 B1 EP2059397 B1 EP 2059397B1 EP 07801330 A EP07801330 A EP 07801330A EP 2059397 B1 EP2059397 B1 EP 2059397B1
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EP
European Patent Office
Prior art keywords
security
sers
particles
valuable document
active
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.)
Revoked
Application number
EP07801330.7A
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German (de)
English (en)
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EP2059397A2 (fr
Inventor
Malte Pflughoefft
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Bundesdruckerei GmbH
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Bundesdruckerei GmbH
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
    • B42D25/378—Special inks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
    • B42D25/373—Metallic materials
    • B42D2035/34—

Definitions

  • the invention relates to a security and / or value document containing at least one security feature which is mounted in a defined spatial position in the security and / or value document, a method for producing such a security and / or value document, a method for verifying such a security - And / or value document and an ink for producing such a security and / or value document.
  • the Raman effect is based on the scattering of electromagnetic radiation, in particular light, at a scattering center, wherein absorption of a portion of the incident radiation by excitation of rotations or vibrations of the scattering center takes place simultaneously with the scattered pulse change of the scattered radiation with respect to the incident radiation.
  • This energy transfer distinguishes the Raman effect from the Rayleigh scattering, in which no energy transfer takes place, but only a scattered pulse change.
  • Raman spectroscopy A further development of Raman spectroscopy is the so-called surface-enhanced Raman spectroscopy (SERS).
  • SERS surface-enhanced Raman spectroscopy
  • an amplification of the Raman signal by a factor of 10 6 to 10 12 achieved in that the scattering centers are brought into contact with certain rough metal surfaces, typically metallic nanoparticles, such as Ag, Au, or Cu nanoparticles.
  • metallic nanoparticles such as Ag, Au, or Cu nanoparticles.
  • This effect is associated with the resonant excitation of surface plasmons.
  • An overview of the electromagnetic theory of SERS and the various processes involved is, for example, the reference M. Moskovits, Journal of Raman Spectroscopy 36: 485-496 (2005 ) removable.
  • the SERS effect is used, for example, in particles that are in the reference US-2002/0104762 are described. These can be formed for example as nanobar codes, wherein the particles are formed as a few ⁇ m long rods, which are composed of layers of different materials and thereby form the barcode. When measuring with sufficient local resolution ( ⁇ 1 ⁇ m), the barcode can be read out.
  • the rods can be coated with a reporter substance to increase sensitivity and selectivity, resulting in an intense and environmentally independent signal or signal sequence. Such particles are discussed for use in product protection.
  • the document WO 91/11492 A discloses particles associated with resonant Raman scattering. A similar technology is in the document WO 91/11703 A described.
  • the document US 6,259,509 B1 discloses a security element utilizing the Raman effect.
  • the document EP 0786498 A describes pigments with different Raman spectra.
  • the invention is based on the technical problem of specifying a security and / or value document which can be examined and verified in a particularly simple manner by means of SERS and without changing the security and / or value document.
  • the invention is based on the further technical problem of specifying a security and / or value document whose analyzability with SERS is not limited to the surface.
  • the invention is based on the technical problem of providing a particularly simple and inexpensive security and / or valuable document which can be verified by means of SERS.
  • the invention teaches the subject matter of claim 1.
  • value and / or security document includes in the invention in particular identity cards, passports, ID cards, access control cards, visas, tax stamps, tickets, driver's licenses, motor vehicle papers, banknotes, checks, postage stamps, credit cards, any smart cards and adhesive labels (eg product assurance).
  • security and / or value documents typically have a substrate, a printing layer and optionally a transparent cover layer.
  • a substrate is a support structure to which the print layer is applied with information, images, patterns, and the like.
  • a substrate may be single-layered or multi-layered. Suitable materials for a substrate or a substrate layer are all customary materials based on paper and / or plastic in question.
  • a security feature is a subarea (area or volume) of the security and / or value document that can be used to verify the security and / or value document.
  • the subarea can be structureless, but it can also be a pattern.
  • Such a pattern may be a similar pattern for different security and / or value documents. Then, the pattern is suitable for verification of one type of security and / or valuable document. Examples of such document type-specific lateral patterns are: seals, coats of arms, regular or irregular surface patterns, such as line coats or guilloches, 1D and 2D barcodes.
  • the pattern may be visible or um Under normal light patterns that are not visible under normal light, whereby the invisible patterns differ from the visible patterns in that the non-visible patterns first become visible by means of technical aids, such as the UV source.
  • the pattern can also be an individual pattern for different security and / or value documents (of the same document type), which pattern is coded in particular for identification information of the security and / or value document.
  • the following (pattern coded) data may be considered: alphanumeric strings, such as personal records, parts of personal records, such as names, first names, address, date of birth, place of birth, and / or document data, pieces of document data, such as serial number, issuing office, Date of issue, expiry date, and other data, in particular digital data, public key (in the case of a document with readable chip or for access to centralized or decentralized databases) and / or checksums, and biometric data such as photographs, fingerprints, vein patterns, for example, by hand or a finger, iris and / or retina. It is preferably a character string that uniquely identifies the document and / or the document carrier.
  • this string can also be a string not otherwise shown in the document. It is also possible to provide a plurality of patterns which can overlap one another (laterally) and can nevertheless be read out separately on the basis of the detected Raman spectra. Of course, it is also possible to provide a plurality of patterns which do not overlap each other (laterally). In both cases, in particular combinations of document type-specific patterns and individual patterns are possible and preferred.
  • SERS-active particles are particles which, on contacting the particles with a substance to be examined by Raman spectroscopy, have an increased signal intensity of at least 10 3 , in particular by at least 10 5 , compared with a Raman signal on the substance without contact with SERS active particles. It is essential to understand that the intensity of an SERS signal is by no means a function of the concentration or density of the SERS active particles. If a SERS signal is obtained due to a SERS-active particle, the addition of further SERS-active particles does not result in a significant increase in the SERS signal. For this purpose, in addition to the reference M. Moskovits, Journal of Raman Spectroscopy 36: 485-496 (2005 ).
  • a Raman signal with high signal intensity which is specific for the security feature can be obtained, without having to previously prepare or otherwise modify the security and / or value document in any way.
  • the security and / or value document remains completely unchanged as a result of the examination of the security feature and can still be used.
  • a repeated examination of the security feature or of the security and / or value document can take place without any changes of the security and / or value document, in contrast to the known preparation of the security and / or value document with a colloidal solution.
  • Verification can be quick and easy.
  • the positioning of the security feature or its examination is not limited to the surface of the security and / or value document. Rather, the security feature can be arranged at any point of the security and / or value document, even in the volume.
  • the security feature can be set up in the substrate, in a printing layer or in a generally transparent cover layer of the security and / or value document.
  • the SERS-active particles are introduced at the desired location or layer for the security feature, which is easily possible in the course of the production process of the substrate or a print layer or cover layer.
  • the SERS signal then originates from the material matrix surrounding the SERS active particles, which typically contains organic polymers which are Raman active.
  • the SERS active particles contain metallic copper, silver, gold, alkali metal, and / or coin metal. It may also be alloys with one or more such metals. They may consist of this, but also in the context of composite particles, such as core-shell particles, be set up.
  • Non-exhaustive examples include: coated with said metals or alloys inorganic particles, such as oxide particles, for example of SiO 2 , or polymer particles.
  • the SERS-active particles typically have a volume in the range of 1 nm 3 to 10 9 nm 3 , preferably from 1 nm 3 to 10 5 nm 3 , most preferably from 1 nm 3 to 10 3 nm 3 . It should be noted that SERS-active particles are typically clusters of nanoparticles (with a volume of up to 10 9 nm 3 ) of the metals in question.
  • their number in the volume unit of the security feature is in the range of 10 -6 or 10 -3 particles / ⁇ m 3 to 10 9 particles / ⁇ m 3 , in particular in the range of 10 particles / ⁇ m 3 to 10 6 particles / ⁇ m 3 , preferably in the range of 10 2 particles / ⁇ m 3 to 10 4 particles / ⁇ m 3 , is located.
  • the particles do not have a cladding layer with a Raman active substance, but are directly contacted with a polymer of a polymer layer or ink, this polymer itself being Raman active. This allows a simple and cost-effective production of the security and / or value document.
  • information about the materials of the examined safety and / or value document is obtained on the basis of the Raman spectra or resonances so that verification (with materials that are true to the original) or detection of counterfeiting (with materials that are not true to the original) can be carried out easily.
  • Raman-active means that a Raman spectrum or specific resonance frequency specific to the polymer layer or color or ink is obtained.
  • a Raman active material may be a synthetic organic polymer having one or more functional groups (such as, but not limited to, carbonyl, carboxyl, hydroxy, thiol, ether, thioether, nitro, nitroso, sulfonyl, sulfo, Phospho, phosphonyl, amino, etc.).
  • the functional group (s) may also be, for example, aromatics, conjugated aromatics and heterocycles such as quinolinyl, dioxanyl, furanyl, imidazolyl, indolyl, morpholinyl, oxazolyl, oxiranyl (ethylene oxide), piperidinyl, porphyrinyl, purinyl, pyranyl , Pyrazolyl, pyridinyl, pyrimidinyl, pyrrolyl, pyrrolidinyl, tetrahydrofuranyl, thiazolyl, thiazolidinyl, thiazolinyl, thiophenyl, trizinyl, triazolyl, trioxanyl, or isoforms of such groups, substituted or unsubstituted.
  • aromatics conjugated aromatics and heterocycles
  • quinolinyl dioxanyl
  • furanyl imidazolyl
  • indolyl morpholinyl
  • a security feature there are various possibilities. It can be simple or multiple. With multiple devices, the security features may be the same or different with respect to the SERS signal. Various security features are obtained, for example, in that the SERS-active particles in different matrices of the security and / or value document are embedded.
  • An inventive security feature can be arranged at any position of the security and / or value document. Thus, it can be arranged in a substrate or any substrate layer in the case of multilayer substrates, a printing layer and / or a cover layer, ie at any depth.
  • the shape of the security feature which is determined by the distribution of the SERS-active particles, can be arbitrary.
  • the security feature can be a homogeneous security feature, ie the distribution of the SERS-active particles is homogeneous within the security feature.
  • the security feature can also form a pattern, ie the distribution of the SERS-active particles is inhomogeneous (typically in a lateral direction, ie in directions parallel to a main surface of the security and / or value document) and forms the pattern. Then by spatially resolved SERS not only a verification of the SERS signal per se, but also on the specific pattern and its evaluation and comparison with target patterns done.
  • Several security features may be implemented in different layers (including the substrate) of the security and / or value document, ie at different depths.
  • the invention further relates to a method for producing a security and / or value document according to the invention, wherein SERS-active particles during the production of the security and / or value document therein in a defined spatial position or at several different defined spatial positions, lateral or related on the depth or layer, are introduced.
  • SERS-active particles during the production of the security and / or value document therein in a defined spatial position or at several different defined spatial positions, lateral or related on the depth or layer, are introduced.
  • SERS-active particles during the production of the security and / or value document therein in a defined spatial position or at several different defined spatial positions, lateral or related on the depth or layer, are introduced.
  • SERS-active particles during the production of the security and / or value document therein in a defined spatial position or at several different defined spatial positions, lateral or related on the depth or layer, are introduced.
  • the security feature is made by pressure and it can also easily form any defined pattern of the security feature.
  • Suitable printing methods for producing such a security feature are
  • the invention further relates to a method for verifying a security and / or value document according to the invention, wherein the security feature is subjected to a SERS examination and the resulting SERS spectrum or SERS signal having a desired SERS spectrum or a desired SERS signal is compared.
  • the desired SERS spectrum or desired SERS signal can be stored in a database and retrievable. If there is a match, the examined security and / or value document is verified; if it does not match, it is recognized as a forgery and can be confiscated or rejected.
  • verification can also take place via the detected position of the security feature within the security and / or value document by performing a spatially resolved SERS measurement and aligning the security and / or value document in a defined manner. In the case of verification by means of spatial resolution, instead of the measurement of the spectrum, a spatially resolved measurement can take place at one (or more) fixed (resonance) frequency, as is familiar to the person skilled in the art.
  • the verification takes place via the material characterization of the substance surrounding the SERS-active particles.
  • the presence or absence of a Raman-active substance in the SERS-active particles is determined, which is recommended, for example, in the spatially resolved examination.
  • the SERS examination can also be performed spatially resolved, for example by means of confocal Raman microscopy. This also makes it possible to pattern capture or detect a security feature executed as a pattern and with a desired pattern, stored in a database or attached to or in the security and / or value document patterns or information calculated or taken, to compare. If the pattern also matches, the examined security and / or value document is verified; if it does not match, it is recognized as a forgery even with per se SERS spectra or signals and can be confiscated or rejected.
  • these can each be subjected to a SERS examination, and the SERS spectra or SERS signals obtained are then compared with desired SERS spectra or signals respectively assigned to the spatial positions.
  • the pattern recognition described above can additionally take place with one or more of the security features, provided that these are designed as a pattern.
  • the invention relates to an ink or ink according to claim 11.
  • the further constituents of inks of the invention are in accordance with the components of inks and inks known in the art and typically comprise the usual other components of paints or inks, such as binders , Penetrants, adjusters, biocides, surfactants, buffering agents, solvents (water and / or organic solvents), fillers, pigments, dyes, effect pigments, antifoaming agents, anti-settling agents, UV stabilizers, etc.
  • Suitable color and ink formulations for various printing processes are One of ordinary skill in the art is well aware of and uses SERS-active ones employed in the present invention In this respect, particles are mixed in place or in addition to conventional dyes or pigments.
  • the proportion of the SERS active particles in the ink may be, for example, in the range of 0.00001 to 50% by weight, preferably 0.001 to 10% by weight, most preferably 0.001 to 2% by weight, based on the total weight of the ink between color.
  • Example 1 Lamination of SERS-active particles in two plastic layers.
  • FIGS. 1a and 1b show the production of a security feature according to the invention between two layers (substrate layers or substrate layer and cover layer).
  • SERS-active particles 1 for example Au nanoparticles, without further components except, if appropriate, a solvent in which the SERS-active particles 1 are suspended are applied to a first Raman-active polymer layer 2, for example by means of a Printing technology ( FIG. 1a ).
  • a second, optionally also Raman-active, polymer layer 3 preferably of the same polymer as that of the first polymer layer 2, is placed.
  • first polymer layer 2 and the second polymer layer 3 laminated together for example by gluing or welding ( FIG. 1b ).
  • first polymer layer 2 and / or the second polymer layer 3 carries an adhesive layer not shown for the sake of clarity.
  • a security and / or value document containing the illustrated first polymer layer 2 and second polymer layer provides SERS spectra or signals due to the Raman activity of the polymer material contacted with the SERS active particles, which are therefore specific for this purpose.
  • SERS spectrum provides information about the polymer material. If the SERS spectrum does not correspond to a SERS nominal spectrum of the polymer material used for genuine documents, then the examined security and / or value document contains a polymer material that is different from genuine security and / or value documents, whereby the counterfeiting is recognized can.
  • the spatial arrangement, laterally (in directions of the main plane of the layers 2, 3) and / or with respect to the depth (in directions orthogonal to the Main plane of the layers 2, 3) of the security feature forming SERS-active particles are determined and compared with a desired arrangement.
  • Example 2 Lamination of a color or ink with SERS-active particles in two plastic layers.
  • This example is substantially similar to Example 1, except that the SERS active particles 1 is colored or inked with a synthetic organic polymer-based component different from the polymer material of the first polymer layer 2 and the second polymer layer 3 , are printed on the first polymer layer 2. As a result, a printing layer 4 is formed ( Fig. 2 ). On this print layer 4, the second polymer layer 3 is then laminated.
  • the security feature is arranged inside the security and / or value document thus formed and can not be worn or rubbed off. In addition, a manipulation is at least difficult.
  • the analog information according to Example 1 can be obtained for verification purposes.
  • the security and / or value document at another position contains an area with the same color or ink, but no SERS-active particles 1 are contained in the ink, or a color or ink with same-looking color.
  • it is not visually apparent at which position the security feature is set up, which makes forgery more difficult.
  • it can be determined by comparison of SERS signals or spectra, which are obtained on areas with ink or color without SERS-active particles 1 and on a security feature according to the invention, whether an adjustment and / or manipulation of the security and / or or value document was carried out.
  • Example 3 Security and / or value document with several security features
  • FIG. 3 shows a security and / or value document according to the invention, wherein a plurality of regions 6, 7, 8 are arranged at different positions, laterally and with respect to the depth, with SERS-active particles 1. It can further be seen that various layers 9, 10, 11, 12 are set up within the framework of the security and / or value document. Within the scope of the areas 6, 7, 8, the variants of examples 1 to 3 can be set up independently of one another and each other, which is not shown for the sake of clarity.
  • the areas 6, 7, 8 form a defined three-dimensional pattern.
  • Pattern recognition and thus verification can be performed two-dimensionally or three-dimensionally using, for example, confocal Raman microscopy.
  • the establishment of such a pattern, in particular three-dimensional makes a difficult
  • SERS spectra of a region 6, 7, 8 or multiple regions 6, 7, 8 can also be recorded, whereby a verification of the above-described characterization of the substance in contact with the SERS-active particles 1 takes place.
  • Such a combination provides extremely high protection against readjustment and manipulation.
  • Example 4 Ink according to the invention
  • the total content of water considering the water introduced with the cartasol is 30% by weight based on the total amount of ink.
  • the use of cartasol also contains 1% by weight of acetic acid, based on the total amount of ink.

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  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
  • Credit Cards Or The Like (AREA)
  • Peptides Or Proteins (AREA)

Claims (11)

  1. Document de sécurité et/ou de valeur contenant au moins une caractéristique de sécurité, qui est disposée dans une position spatiale définie dans le document de sécurité et/ou de valeur et qui contient des particules actives pour l'exaltation Raman de surface (SERS), dans lequel les particules actives pour SERS n'ont pas de couche d'enrobage et dans lequel les particules sont en contact direct avec un polymère actif par l'effet Raman d'une couche polymérique ou d'une couche d'impression du document de sécurité et/ou de valeur.
  2. Document de sécurité et/ou de valeur selon la revendication 1, dans lequel les particules actives pour SERS comportent du cuivre métallique, de l'argent métallique, de l'or métallique, du métal alcalin, du métal de coin, et/ou des alliages comportant de tels métaux ou consistent en ceux-ci.
  3. Document de sécurité et/ou de valeur selon une des revendications 1 ou 2, dans lequel les particules actives pour SERS ont un volume compris dans la gamme de 1 nm3 à 109 nm3, de préférence de 1 nm3 à 105 nm3, de préférence la plus haute de 1 nm3 à 103 nm3.
  4. Document de sécurité et/ou de valeur selon une des revendications 1 à 3, dans lequel le nombre des particules dans l'unité de volume de la caractéristique de sécurité est compris dans la gamme de 10-6 ou 10-3 particules/µm3 à 109 particules/µm3, en particulier de 102 particules/µm3 à 106 particules/µm3, de préférence de 102 particules/µm3 à 104 particules/µm3.
  5. Document de sécurité et/ou de valeur selon une des revendications 1 à 4, dans lequel plusieurs caractéristiques de sécurité identiques ou différentes sont disposées à des locations spatiales différentes dans le document de sécurité et/ou de valeur.
  6. Document de sécurité et/ou de valeur selon la revendication 5, dans lequel les locations spatiales différentes sont des positions latérales différentes et/ou des profondeurs différentes.
  7. Procédé de fabrication d'un document de sécurité et/ou de valeur selon une des revendications 1 à 6, dans lequel des particules actives pour SERS sont introduites pendant la fabrication du document de sécurité et/ou de valeur là-dedans à une location spatiale définie ou à plusieurs positions spatiales définies différentes.
  8. Procédé de vérification d'un document de sécurité et/ou de valeur selon une des revendications 1 à 6, dans lequel la caractéristique de sécurité est soumise à une vérification SERS et le spectre SERS résultant ou le signal SERS résultant est comparé avec un spectre SERS de consigne.
  9. Procédé selon la revendication 8, dans lequel la vérification SERS est réalisée de façon spatialement résolue.
  10. Procédé selon la revendication 9, dans lequel plusieurs caractéristiques de sécurité différentes sont soumises à une vérification SERS, et les spectres SERS résultants ou les signaux SERS résultants sont comparés avec les spectres SERS ou les signaux de consigne associés aux positions spatiales respectives.
  11. Encre ou couleur pour la fabrication d'une caractéristique de sécurité d'un document de sécurité et/ou de valeur selon une des revendications 1 à 6 par un procédé d'impression comportant des particules actives pour SERS qui n'ont pas de couche d'enrobage, et comprenant un polymère actif par l'effet Raman.
EP07801330.7A 2006-09-07 2007-09-05 Document de sécurité et / ou de valeur à particules sers Revoked EP2059397B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006043107A DE102006043107A1 (de) 2006-09-07 2006-09-07 Sicherheits- und/oder Wertdokument mit SERS-aktiven Partikeln
PCT/DE2007/001595 WO2008028476A2 (fr) 2006-09-07 2007-09-05 Document de sécurité et / ou de valeur à particules sers

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EP2059397A2 EP2059397A2 (fr) 2009-05-20
EP2059397B1 true EP2059397B1 (fr) 2015-11-11

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DE (1) DE102006043107A1 (fr)
WO (1) WO2008028476A2 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006043107A1 (de) 2006-09-07 2008-03-20 Bundesdruckerei Gmbh Sicherheits- und/oder Wertdokument mit SERS-aktiven Partikeln
DE102010060563A1 (de) * 2010-11-15 2012-05-16 Technische Universität Dresden Verfahren zur spektroskopischen Bestimmung der Konzentration von Inhaltsstoffen in Papieren oder Folien und Probenhalter zur Durchführung des Verfahrens
DE102013016134A1 (de) 2013-09-27 2015-04-02 Giesecke & Devrient Gmbh Wertdokument und Verfahren zur Überprüfung des Vorliegens desselben
DE102013016121A1 (de) 2013-09-27 2015-04-02 Giesecke & Devrient Gmbh Wertdokument und Verfahren zur Überprüfung des Vorliegens desselben
FR3018474B1 (fr) 2014-03-13 2019-05-10 Oberthur Fiduciaire Sas Document de securite et particules synthetiques
DE102016009260A1 (de) 2016-07-29 2018-02-01 Giesecke+Devrient Mobile Security Gmbh Fingerabdruck eines Sicherheitsdokuments

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WO2000055586A1 (fr) 1999-03-16 2000-09-21 Wizard Of Ink & Co. Spectromètre raman de vérification et d'authentification laser (lvars)
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