EP1377461A2 - Procede pour marquer de fa on infalsifiable des objets, et marquage infalsifiable - Google Patents

Procede pour marquer de fa on infalsifiable des objets, et marquage infalsifiable

Info

Publication number
EP1377461A2
EP1377461A2 EP01971633A EP01971633A EP1377461A2 EP 1377461 A2 EP1377461 A2 EP 1377461A2 EP 01971633 A EP01971633 A EP 01971633A EP 01971633 A EP01971633 A EP 01971633A EP 1377461 A2 EP1377461 A2 EP 1377461A2
Authority
EP
European Patent Office
Prior art keywords
layer
marking
counterfeit
electromagnetic waves
proof
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
EP01971633A
Other languages
German (de)
English (en)
Other versions
EP1377461B1 (fr
EP1377461B2 (fr
Inventor
Georg Bauer
Jörg HASSMANN
Harald Walter
Wolf Bertling
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.)
Hueck Folien GmbH
Original Assignee
November AG Novus Medicatus Bertling Gesellschaft fuer Molekular Medizin
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7654219&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1377461(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by November AG Novus Medicatus Bertling Gesellschaft fuer Molekular Medizin filed Critical November AG Novus Medicatus Bertling Gesellschaft fuer Molekular Medizin
Publication of EP1377461A2 publication Critical patent/EP1377461A2/fr
Publication of EP1377461B1 publication Critical patent/EP1377461B1/fr
Application granted granted Critical
Publication of EP1377461B2 publication Critical patent/EP1377461B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • 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
    • B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • B42D25/29—Securities; Bank notes
    • 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
    • B42D2033/10—
    • B42D2033/18—
    • B42D2035/24—

Definitions

  • the invention relates to a method for counterfeit-proof marking of objects such as check cards, banknotes, packaging and the like. It also relates to a forgery-proof marking.
  • An optochemical sensor is known from US Pat. No. 5,611,998.
  • a chemically reactive layer is applied to a metal layer, which changes its volume upon contact with a solution containing a substance to be detected.
  • a layer formed from metallic clusters is applied to the chemically reactive layer.
  • the distance between the layer formed from the metallic cluster and the metal layer changes.
  • the absorption of light radiated onto the sensor also changes.
  • the presence of the substance to be detected causes the color of the sensor to change.
  • the known sensor is not suitable for counterfeit-proof marking of objects. A color change only occurs when a liquid phase is applied to the sensor. In contact with moisture or liquids it can there is also a reaction that triggers or changes a color signal.
  • the object of the invention is to provide a method for marking objects and a marking which offer a high level of security against forgery in a simple and inexpensive manner.
  • an inert second layer which is permeable to electromagnetic waves and has a predetermined thickness is applied to an electromagnetic layer which reflects electromagnetic waves
  • a method for counterfeit-proof marking of objects such as check cards, banknotes and the like is provided, wherein a) an inert second layer which is permeable to electromagnetic waves and has a predetermined thickness is applied to an electromagnetic layer which reflects electromagnetic waves,
  • a third layer formed from metallic clusters is applied to a substrate in such a way that it is used for
  • Visualization of the marking can be arranged at a predetermined distance from the first layer.
  • the further procedural solution enables invisible marking of an object in a simple and inexpensive manner.
  • the marking is particularly forgery-proof. It can be made visible by bringing it into contact with the substrate coated according to the invention.
  • the second layer is expediently applied in a structured manner.
  • the structuring can be a structure in the area in the manner of a pattern or a drawing. However, it can also be a relief-like structure. In this case, the marking appears in different colors.
  • an inert fourth layer which is permeable to electromagnetic waves is applied to the third layer.
  • the fourth layer primarily serves to protect the covered layers.
  • the substrate can be made from a material that is permeable to electromagnetic waves, preferably from glass or plastic.
  • First molecules which are affine to the second layer or to the second molecules provided thereon are expediently applied to the third or fourth layer.
  • Polymers, silanes or structurally related compounds can be used as molecules.
  • complementary polynucleotide sequences, such as DNA can be used as molecules.
  • the function of the first and second molecules essentially consists in adhering the substrate to the marking at a fixed predetermined distance.
  • the metallic clusters can e.g. made of silver, gold, platinum, aluminum, copper, tin or indium.
  • the second and / or fourth layer can be produced from one of the following materials: metal oxide, metal nitrite, metal carbide, in particular from silicon oxide, carbide, nitrite, tin oxide, nitrite, aluminum oxide, nitrite or polymer, in particular polycarbonate (PC ), Polyethylene (PE), polypropylene (PP), polyurethane (PU), polyimide (PI), polystyrene (PS) or polymethacrylate (PMA). These materials are essentially chemically inert. They are not sensitive to moisture.
  • the function of the second layer essentially consists in permanently providing a predetermined distance from the third layer and / or a predetermined structure.
  • a color forming the marking becomes visible when the distance between the first and third layers is less than 2 ⁇ m.
  • the coloring depends on the observation angle and is characteristic.
  • the first layer can be irradiated by means of a device for generating electromagnetic waves, preferably by means of a LASER, fluorescent lamp, light-emitting diode or xenon lamp.
  • the marking can be identified using a device for determining the optical properties of the electromagnetic waves reflected by the first layer. It can be set up with Determination of the optical properties of the absorption, preferably at different observation angles. Such a determination of the optical properties enables a high level of security against forgery.
  • the layers are / are at least partially produced using thin-film technology.
  • vacuum coating technologies and the like come into consideration.
  • At least one of the layers is made of a material with an anisotropic refractive index.
  • the second layer is preferably made of a material with an anisotropic refractive index.
  • the material can e.g. are liquid crystal polymers which operate both at different viewing angles, i.e. Angles with respect to the z axis, as well as at different angles of rotation, i.e. Angles in the x-y plane, showing a characteristic color.
  • At least one of the layers can be produced from a material whose optical properties can be changed in a targeted manner after the layer has been applied.
  • the material can e.g. are a photosensitive polymer whose refractive index can be changed by irradiation with a suitable wavelength.
  • a forgery-proof marking for objects such as check cards, banknotes and the like is also provided, an inert second layer having a predetermined thickness permeable to electromagnetic waves being applied to a first layer connected to the object and reflecting electromagnetic waves, and wherein a third layer formed of metallic clusters on the second layer is applied.
  • Such a marking is permanently visible; it is very forgery-proof.
  • a tamper-proof marking for objects such as check cards, bank notes and the like
  • an inert second layer having a predetermined thickness permeable to electromagnetic waves and being permeable to electromagnetic waves connected to the object connected to the object is upset.
  • Such a marking is invisible.
  • the first layer can be formed by the object itself.
  • a third layer formed from metallic clusters can be applied to a substrate in such a way that it can be arranged at a predetermined distance from the first layer in order to make the marking visible.
  • FIG. 1 is a schematic cross-sectional view of a first permanently visible marking
  • FIG. 2 shows a schematic cross-sectional view of a second permanently visible marking
  • 3 shows a schematic cross-sectional view of a first marking, which is not always visible, and of a substrate suitable for visualization
  • FIG. 4 shows a schematic cross-sectional view of a second marking, which is not always visible, and of a substrate suitable for visualization
  • FIG. 5 Absorption spectra of a marking according to FIG. 1 under different observation angles
  • FIG. 6 shows a quantitative evaluation of the spectra according to FIG. 5 at different wavelengths.
  • a first layer which reflects electromagnetic waves is designated by 1. It can be a metal foil, e.g. an aluminum foil, act. However, the first layer 1 can also be a layer formed from clusters, which is applied to a carrier 2. The carrier 2 can be the object to be marked. The clusters are expediently made of gold. Likewise, the first layer 1 shown in FIGS. 1 and 3 can also be the object, provided that its surface is formed from a material reflecting electromagnetic waves.
  • a chemically inert second layer 3 is applied to the first layer 1.
  • the second layer 3 has a structure.
  • the structure here is in the form of a relief, which is designed, for example, in the manner of a bar code.
  • the thickness of the second layer is preferably between 20 and 1000 nm. It is applied by means of thin-layer technology. Vacuum coating processes are suitable for this.
  • a third layer 4 made of metallic clusters is applied to the second layer 3.
  • the third layer 4 is in turn overlaid by a fourth layer 5.
  • the fourth layer 5 protects the layers below from damage.
  • the fourth layer 5, like the second layer 3, can be made of a chemically inert and optically transparent material, for example a metal oxide, nitrite, carbide or polymer.
  • the markings shown in FIGS. 3 and 4 are only visible when they are brought into contact with a substrate 6, on the surface of which the third layer 4 formed from metallic clusters is applied.
  • the third layer 4 can be overlaid with a fifth layer 7 formed from first molecules.
  • the fifth layer 7 is expediently formed from molecules which are affine to the material from which the second layer 3 is made. When the fifth layer 7 comes into contact with the second layer 3, specific adherence thus occurs. It may also be the case that the second layer 3 is covered by a further fifth layer 7.
  • the fifth layers 7 are each formed from molecules which have an affinity for one another. These can be biopolymers that are complementary to one another.
  • the fifth layer 7 can, however, also be made from other polymers, silanes and / or structurally related compounds.
  • the substrate 6 is made of a transparent material, e.g. out
  • the function of the marking is as follows: When light from a light source, such as a LASER, a fluorescent tube or a xenon lamp, is irradiated onto a marking shown in FIGS. 1 and 2, this light is reflected at the first layer 1. An interaction of the reflected light with the third layer 4 formed from the metallic clusters absorbs part of the incident light. The reflected light has a characteristic spectrum. The marking appears in color. The color, which depends on the angle of radiation or observation, serves as proof against forgery of the authenticity of the marking.
  • a light source such as a LASER, a fluorescent tube or a xenon lamp
  • the second layer 3 can consist of chemically inert materials, such as silicon oxide, carbide, nitrite, tin oxide or nitrite, or aluminum oxide or nitrite. The marking is initially not visible.
  • the optically transparent substrate 6 provided with the third layer 4 When the optically transparent substrate 6 provided with the third layer 4 is applied, there may be an interaction between the light reflected on the first layer 1 and the third layer. In turn, a color effect arises which can be observed through the substrate 6, which is preferably made of glass.
  • the third layer 4 In order to ensure that the predetermined distance between the first 1 and the third layer 4 required for producing the color effect is established, the third
  • Layer 4 be covered with a fifth layer 7.
  • the substrate 6 adheres to the marking.
  • a predetermined distance is established between the third layer 4 and the first layer 1.
  • the spectra of a marking according to FIG. 1 shown in FIG. 5 were measured by means of a Perkin Elmer Lambda 25 UV / VIS spectrometer using a reflection insert. It can be seen from FIG. 5 that the longer-wave peak shifts towards shorter wavelengths with increasing observation angle. A fixed peak can also be observed, which is due to the silver clusters.
  • FIG. 6 shows a quantitative evaluation of the spectra according to FIG. 5 in each case at two different wavelengths. At the wavelengths under consideration, a changed absorption is observed depending on the observation angle. The absorption pattern is characteristic of the authenticity of the label.

Landscapes

  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Credit Cards Or The Like (AREA)
  • Laminated Bodies (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Peptides Or Proteins (AREA)

Abstract

L'invention concerne un procédé pour marquer de façon infalsifiable des objets, tels que des cartes bancaires, des billets de banque et des objets analogues. Selon ledit procédé: a) on applique, sur une première couche (1) réfléchissant les ondes électromagnétiques, une deuxième couche (3), inerte, qui laisse passer les ondes électromagnétiques et dont l'épaisseur est prédéterminée; (b) on applique sur la deuxième couche (3), une troisième couche (4), constituée de clatrates métalliques; et (c) on lie la première couche (1) du marquage ainsi formé avec l'objet.
EP01971633A 2000-08-29 2001-08-16 Procede pour marquer de facon infalsifiable des objets, et marquage infalsifiable Expired - Lifetime EP1377461B2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10042461A DE10042461C2 (de) 2000-08-29 2000-08-29 Verfahren zur fälschungssicheren Markierung von Gegenständen und fälschungssichere Markierung
DE10042461 2000-08-29
PCT/DE2001/003205 WO2002018155A2 (fr) 2000-08-29 2001-08-16 Procede pour marquer de façon infalsifiable des objets, et marquage infalsifiable

Publications (3)

Publication Number Publication Date
EP1377461A2 true EP1377461A2 (fr) 2004-01-07
EP1377461B1 EP1377461B1 (fr) 2005-03-09
EP1377461B2 EP1377461B2 (fr) 2013-01-16

Family

ID=7654219

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01971633A Expired - Lifetime EP1377461B2 (fr) 2000-08-29 2001-08-16 Procede pour marquer de facon infalsifiable des objets, et marquage infalsifiable

Country Status (9)

Country Link
US (1) US7396557B2 (fr)
EP (1) EP1377461B2 (fr)
JP (1) JP4049215B2 (fr)
AT (1) ATE290473T1 (fr)
AU (1) AU2001291610A1 (fr)
CA (1) CA2419846C (fr)
DE (2) DE10042461C2 (fr)
ES (1) ES2213502T1 (fr)
WO (1) WO2002018155A2 (fr)

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DE10208036A1 (de) * 2001-08-16 2003-08-21 November Ag Molekulare Medizin Fälschungssichere Markierung für Gegenstände und Verfahren zur Identifizierung einer solchen Markierung
ATE281943T1 (de) * 2002-02-08 2004-11-15 Mantegazza Antonio Art Grafich Sicherheitsvorrichtung, vorzugsweise, ein sicherheitsfaden, bestehend aus visuell lesbaren zeichen sowie magnetischer eigenschaften, und verfahren zu ihrer herstellung
DE10218897A1 (de) 2002-04-26 2003-11-06 Giesecke & Devrient Gmbh Sicherheitselement und Verfahren zu seiner Herstellung
AT413360B (de) 2002-08-06 2006-02-15 Hueck Folien Gmbh Verfahren zur herstellung von fälschungssicheren identifikationsmerkmalen
DE10246563A1 (de) * 2002-10-05 2004-04-15 november Aktiengesellschaft Gesellschaft für Molekulare Medizin Vorrichtung und Verfahren zur Bestimmung der Farbe/n auf einer Oberfläche
DE10325564B4 (de) 2003-06-05 2008-12-18 Infineon Technologies Ag Chipkartenmodul
DE10337331A1 (de) 2003-08-12 2005-03-17 Giesecke & Devrient Gmbh Sicherheitselement mit Dünnschichtelement
DE102004004713A1 (de) * 2004-01-30 2005-09-01 Leonhard Kurz Gmbh & Co. Kg Sicherheitselement mit partieller Magnetschicht
AT504587A1 (de) 2004-02-16 2008-06-15 Hueck Folien Gmbh Fälschungssicheres sicherheitsmerkmal mit farbkippeffekt
DE102004042187B4 (de) * 2004-08-31 2021-09-09 Infineon Technologies Ag Chipkartenmodul für eine kontaklose Chipkarte mit Sicherheitsmarkierung
US20070105229A1 (en) * 2005-08-19 2007-05-10 Burns Carolyn A Authentication of packaged articles
DE102005054418B4 (de) 2005-11-15 2013-05-23 Infineon Technologies Ag Verfahren zum Herstellen einer Kontaktzone für eine Chipkarte
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DE102007061979A1 (de) * 2007-12-21 2009-06-25 Giesecke & Devrient Gmbh Sicherheitselement
EP3002744B1 (fr) * 2013-03-12 2018-10-24 Arizona Board of Regents, a Body Corporate of the State of Arizona acting for and on behalf of Arizona State University Traitement d'image de structures dendritiques utilisés avec des étiquettes comme des functions physiques unclonable pour prévenir la contre facon.
SI2851194T1 (sl) * 2013-09-20 2016-03-31 Hueck Folie Ges.M.B.H Zaščitni element, še zlasti zaščitna etiketa
AT515670B1 (de) 2014-06-23 2015-11-15 Hueck Folien Gmbh Sicherheitselement mit modifiziertem Farbkippeffekt
WO2016073910A1 (fr) 2014-11-07 2016-05-12 Arizona Board Of Regents On Behalf Of Arizona State University Codage d'informations dans des structures dendritiques et des étiquettes
AT517320B1 (de) 2015-05-29 2020-04-15 Hueck Folien Gmbh Sicherheitselement mit Farbkippeffekt
WO2018232402A1 (fr) 2017-06-16 2018-12-20 Arizona Board Of Regents On Behalf Of Arizona State University Balayage polarisé d'identifiants dendritiques
WO2019210129A1 (fr) 2018-04-26 2019-10-31 Kozicki Michael N Fabrication de structures et d'étiquettes dendritiques
US12307323B2 (en) 2021-10-18 2025-05-20 Arizona Board Of Regents On Behalf Of Arizona State University Authentication of identifiers by light scattering

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Also Published As

Publication number Publication date
CA2419846C (fr) 2009-08-18
ES2213502T1 (es) 2004-09-01
EP1377461B1 (fr) 2005-03-09
DE10042461C2 (de) 2002-11-07
JP2004507790A (ja) 2004-03-11
CA2419846A1 (fr) 2002-03-07
ATE290473T1 (de) 2005-03-15
DE10042461A1 (de) 2002-03-14
DE50105575D1 (de) 2005-04-14
EP1377461B2 (fr) 2013-01-16
JP4049215B2 (ja) 2008-02-20
WO2002018155A2 (fr) 2002-03-07
AU2001291610A1 (en) 2002-03-13
US20040026917A1 (en) 2004-02-12
US7396557B2 (en) 2008-07-08
WO2002018155A3 (fr) 2003-10-16

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