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EP1583871B1 - Feuille de securite et son procede de production - Google Patents

Feuille de securite et son procede de production Download PDF

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Publication number
EP1583871B1
EP1583871B1 EP03812166A EP03812166A EP1583871B1 EP 1583871 B1 EP1583871 B1 EP 1583871B1 EP 03812166 A EP03812166 A EP 03812166A EP 03812166 A EP03812166 A EP 03812166A EP 1583871 B1 EP1583871 B1 EP 1583871B1
Authority
EP
European Patent Office
Prior art keywords
metal layer
thin
foil
security
layer
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
EP03812166A
Other languages
German (de)
English (en)
Other versions
EP1583871A2 (fr
Inventor
Walter Schneider
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.)
Giesecke and Devrient GmbH
Original Assignee
Giesecke and Devrient GmbH
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
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Application filed by Giesecke and Devrient GmbH filed Critical Giesecke and Devrient GmbH
Publication of EP1583871A2 publication Critical patent/EP1583871A2/fr
Application granted granted Critical
Publication of EP1583871B1 publication Critical patent/EP1583871B1/fr
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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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
    • B42D25/373—Metallic materials
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/40—Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
    • D21H21/42—Ribbons or strips
    • 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
    • B42D25/355—Security threads
    • 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
    • B42D25/40—Manufacture
    • B42D25/405—Marking
    • B42D25/41—Marking using electromagnetic radiation
    • 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
    • B42D25/40—Manufacture
    • B42D25/405—Marking
    • B42D25/43—Marking by removal of material
    • B42D25/44—Marking by removal of material using mechanical means, e.g. engraving
    • B42D2033/10—
    • B42D2033/46—
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/40—Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
    • D21H21/44—Latent security elements, i.e. detectable or becoming apparent only by use of special verification or tampering devices or methods
    • D21H21/48—Elements suited for physical verification, e.g. by irradiation

Definitions

  • the invention relates to a security film for storage or application in or on security papers, documents of value, data carriers or the like, with a carrier film with a preferably structured metal coating.
  • the invention also relates to a method for producing such security films as well as a security paper, a document of value and a data carrier with such a security film.
  • thermoplastic resin ink in the form of the recesses to be formed is printed on the metal-coated side of a film, which softens upon heating and intimately bonds to the metal layer. If one laminates a pretreated film under heat and pressure against a second untreated film and separates the two films after cooling, then the ink or the areas corresponding to the characters or patterns of the metallic coatings are removed from the first film.
  • Radio frequency identification systems consist essentially of a read / write unit and a transponder.
  • the read / write unit can actively read information from the transponder or write information to the transponder.
  • the transponder contains an electronic memory and a transmit / receive antenna.
  • the communication between read / write unit and transponder takes place via the modulation of an electromagnetic field, usually at a carrier frequency of 125 kHz or 13.56 MHz.
  • the transponder is a passive unit and draws the required energy via the antenna from the electromagnetic field of the read / write unit.
  • the deposited metal layers of conventional security films are relatively thin. They are therefore sensitive to mechanical damage and tensile load on the one hand and on the other hand have no sufficient electrical conductivity.
  • the antennas made of the metal layers therefore have only a low quality.
  • the invention is therefore based on the object to provide a security film and a method for their production, which avoids the disadvantages of the prior art.
  • a method is to be created with which in a simple and cost-effective manner low-impedance, preferably have structured metal layers of a security film produced.
  • the invention is based on the finding that low-resistance metal layers can advantageously be produced in a two-stage process.
  • a thin, electrically conductive layer preferably a metal layer
  • the thin, electrically conductive layer is preferably structured by means of a printing process.
  • already known and proven for the production of security elements structuring method can be used.
  • other methods or methods for structuring the thin, electrically conductive layer come into question, such as electrical erosion and laser ablation.
  • the optionally already structured, thin layer is reinforced by electrodeposition of a metal, so that overall a low-resistance, preferably structured metal coating is produced on the carrier foil.
  • the low-resistance metal coating may advantageously be used to form antennas for integrated circuits of the RFID technology, without requiring etching of the thick metal coating.
  • a thin metal layer is preferably vapor-deposited by vacuum evaporation or by electron beam evaporation on the carrier film. However, it can also be used with other suitable methods, in particular Processes of thin-film technology, such as sputtering, produced or applied to the carrier film.
  • the thin metal layer is applied to the carrier film over the entire surface or only in partial sections and typically with a thickness of about 500 nm or less, in particular of about 250 nm or less.
  • electrically conductive inks or carbon coatings in question may contain, for example, metal pigments, carbon black, graphite or electrically conductive polymers or combinations thereof. If this electrically conductive coating is printed on, for example by offset printing, or applied via a masking method, it can already be transferred to the carrier film in a structured form.
  • the electrically conductive first coating not produced in thin-film technology also has a very small thickness.
  • a metal layer having a thickness of 1 ⁇ m or more, preferably 5 ⁇ m or more, is advantageously applied to the thin conductive layer by the electrodeposition in order to achieve a sufficiently low electrical resistance and a high mechanical stability of the metallic coating.
  • such particularly low-resistance metal layers are also suitable for security threads or security elements of documents and securities and for checking the authenticity by measuring their electrical conductivity.
  • the thin metal layer is patterned by printing a printed image on the metal layer that is to be removed using a thermoplastic ink Areas of the metal layer corresponds. Then, the metal layer is pressed with the thermoplastic ink under heat and pressure against a contact sheet and the contact sheet is removed after cooling together with the areas to be removed of the metal layer.
  • the thin metal layer can be patterned by printing on the carrier foil before the application of the thin metal layer a printed image which corresponds to the areas of the metal layer to be removed later, the ink having a low adhesion to the subsequent metal coating.
  • the thin metal layer is then applied to the printed carrier sheet, and the ink and the part of the metal coating applied to the printed image is mechanically removed, in particular by an air or liquid jet or a mechanical scraping device.
  • the so-called “washing process” in which the thin metal layer is patterned by printing a printed image on the carrier film, which corresponds to the areas of the metal layer to be removed later, before applying the thin metal layer using a soluble printing ink.
  • the thin metal layer is then applied to the printed substrate sheet, and the ink and the part of the metal coating applied to the printed image are removed using a solvent.
  • the ink used as printing ink advantageously has a high pigment content, so that it forms a porous structure with a large surface area after drying.
  • the pigment content is suitably between 10% and 80%, preferably about 60%, in each case based on the dry weight of Colour.
  • the pigments used are preferably natural raw materials, such as chalk, bentonite, aerosil or titanium dioxide.
  • Water-soluble binders such as boiled or dissolved starch or polyvinyl alcohol, are advantageously used for the printing ink so that the printing ink can be dissolved and washed off with water after application.
  • the thin metal layer in the form of the remaining metal layer regions is printed with an organic soluble ink.
  • the vapor-deposited metal layer is connected as an anode and fed to a first galvanic bath.
  • the metal of the vapor-deposited layer dissolves at the non-printed areas (anodic oxidation).
  • the coated and structured support sheet is replaced by an organic solvent, e.g. Isopropanol, performed and the ink dissolved or dissolved.
  • a second galvanic bath in which the metal of the remaining vapor-deposited layer is connected as a cathode and the second layer is deposited thereon. This process is preferably carried out in a "roll-to-roll process" without additional drying between the two electroplating baths.
  • a printed image is printed on the thin metal layer for structuring the thin metal layer using a corrosive printing ink.
  • the etching ink can be washed off together with the areas of the thin metal layer which are on or loosened.
  • a protective layer may be printed on the thin metal layer except for the areas to be removed later, and the thin metal layer then be removed in the unprotected areas.
  • an etching-resistant printing ink is advantageously applied, and the thin metal layer is etched away in the unprinted areas, in particular using a lye or an acid.
  • laser ablation or the method of electrical erosion.
  • a laser beam of sufficient energy density is passed over the regions of the thin layer to be ablated. This method is particularly flexible and is therefore particularly suitable for small series and varying structures.
  • the carrier film is provided with an electrically conductive printing ink, for example in offset printing, with a thin, electrically conductive layer.
  • This layer can be printed over the entire surface, but preferably it is printed directly in the outline contours of the security elements to be generated. As a result, subsequent structuring steps of the first electrically conductive layer can be omitted.
  • the dried conductive layer may be directly supplied to the plating bath for application of the metal reinforcing layer.
  • the galvanic reinforcement is carried out immediately after the structuring of the thin metal layer, so that the metal coating can be completely applied within a single, preferably continuously operating process line.
  • This can advantageously be a drying and avoid winding the film between the two coating steps
  • the first metal of the thin metal layer and the second metal of the galvanic reinforcing layer have different visual properties, in particular different colors or different reflection properties.
  • the carrier film consists of a transparent or translucent material, then the security film leads to a different visual impression when viewed from the front and from behind. This effect can be exploited by applying the security foil over, for example, a window of a security paper, a value document or a data carrier.
  • the window can be formed by a recess or a transparent or translucent area of the security paper or value document.
  • the first metal and the second metal may also advantageously have different physical properties, in particular different electrical or magnetic properties, such as conductivity, susceptibility or the like.
  • different physical properties such as conductivity, susceptibility or the like.
  • the physical properties of the galvanic reinforcement may be optimized for the antenna function of the metal coating, while the physical properties of the grown thin metal layer provide additional authenticity signature, such as loss peak at a particular excitation frequency.
  • the thin metal layer is preferably formed of aluminum, chromium, gold, silver, copper, iron, nickel, cobalt or an alloy comprising one or more alloys contains several of these metals.
  • the electrodeposited metal layer preferably contains copper, nickel, cobalt, chromium, silver or gold.
  • the metal layers can be provided with an additional, outer protective layer.
  • a protective layer increases the resistance of the sensitive metal coating to environmental influences and can be applied, for example, by means of a coating or a laminatable film or an adhesive layer.
  • the protective layer is preferably transparent and colorless and electrically insulating.
  • the carrier film is provided in the form of an endless web, so that the process can be carried out continuously.
  • the carrier film may be formed by a plastic or a preferably moisture-resistant paper of any composition.
  • the plastics used are preferably polyester, polyethylene terephthalate (PET) and polyimide.
  • PET polyethylene terephthalate
  • the carrier film with the structured thin metal layer is advantageously drawn through a galvanic bath for the coating. The thickness of the galvanic coating can be adjusted by the residence time of the foil in the galvanic bath and / or the metal concentration in the bath.
  • the carrier film does not have to be dried after the structuring of the thin metal layer, but can continue to run directly into the galvanic bath after washing out.
  • the carrier film is advantageously contacted on the side provided with the thin, electrically conductive layer side of guide rollers, to make an electrical contact for the electrodeposition. Since the thin conductive layer usually extends over a greater distance, when it is connected to the cathode in a few places to capture the entire surface of the layer, it is sufficient if the conductive layer is continuous between these points or at least has a continuous electrical path.
  • the invention also includes a security film for storage or application in or on security papers, documents of value or data carriers, which has a carrier film with a preferably structured metal coating.
  • the electrically conductive coating is formed by a thin, preferably vapor-deposited and structured metal layer or a thin, printed layer and a galvanic reinforcement of the thin layer.
  • Such a security film may in particular be produced by one of the methods described above.
  • the total thickness of the electrically conductive coating is at least 1 .mu.m or more, preferably at least 5 .mu.m.
  • a film according to the invention is also possible to use as a transfer film for the structured metal layer.
  • Carrier film and coating are coordinated in particular by the choice of a suitable plastic for the carrier film to one another so that the metal coating separates well from the carrier film.
  • the detachment can also be facilitated by an additional release layer.
  • the structures produced can be coated with a hot-melt adhesive after galvanization and transferred by heat and pressure from the carrier film to another substrate, for example made of paper.
  • An adhesive may alternatively be disposed on the substrate.
  • FIG. 1 shows a schematic plan view of a security film 10 and Fig. 2 shows a cross section of the security film 10 along the line A - A of Fig.1 to illustrate the layer structure of the film 10.
  • the security film 10 contains a plastic film 12, for example a polyester film, on which a structured metal coating 14 is applied.
  • the recesses 16 in the metal coating 14 may be in the form of characters or patterns and may represent visually or machine readable information as negative writing.
  • the metal coating 14 consists of a thin vapor-deposited metal layer 18 and a thick metal layer 20 deposited thereon in the exemplary embodiment.
  • the thin metal layer 18 is formed by an aluminum layer, deposited on the polyester film 12, having a thickness of 200 nm.
  • a printed image corresponding to the recesses 16 is printed onto the polyester film 12 before the metal layer 18 is vapor-deposited with a water-soluble printing ink having a high pigment content. After vapor deposition of the metal layer 18, the ink is then washed out together with the overlying parts of the aluminum layer 18.
  • the carrier film 12 is provided with the structured metal layer 18 in a galvanic bath with a thick copper layer 20, in the embodiment with a thickness of about 10 microns.
  • FIG. 3 shows a document of value 22, which is provided with a security film 10 according to the invention.
  • carrier film 12 is fixed on the object of value using a hot melt adhesive.
  • the metal coating 14 in this embodiment is in the form of an antenna for a radio-frequency identification system which forms the transceiver antenna 24 for a transponder circuit 24.
  • the security film 10 is as in connection with the Fig. 2 and has a thin aluminum layer 18 and a thick copper layer 20, which are applied one above the other on a transparent polyester film 12.
  • the security film 10 is fixed over a window 28 of a security paper 26, such as a banknote.
  • a security paper 26 such as a banknote.
  • the window 28 through a recess of the security paper 26th it may also be formed by a transparent area of the security paper.
  • the top of the security paper 26 is considered, only the silvery aluminum coating 18 is visible through the polyester film 12 therethrough. In contrast, viewed from the underside, viewed through the window 28, only the reddish shimmering copper layer 20 can be seen.
  • the visual impression of the security film 10 is thus significantly different depending on the viewing direction. Such an effect is difficult to imitate with simpler means and thus contributes to an increased security against counterfeiting of the security paper.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Laminated Bodies (AREA)
  • Materials For Medical Uses (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Paper (AREA)

Claims (42)

  1. Procédé pour la fabrication d'un film de sécurité pour des papiers de sécurité, des documents de valeur, des supports de données ou similaires, dans lequel une couche mince d'un premier métal est appliquée sur un film support, et la couche mince est de préférence structurée, caractérisé en ce que la couche de métal mince, de préférence structurée, est renforcée par électrodéposition d'un second métal, afin de former un revêtement métallique structuré, à faible résistance ohmique, sur le film support.
  2. Procédé selon la revendication 1, caractérisé en ce que la couche métallique mince est appliquée sur le film support dans le procédé de métallisation sous vide ou au moyen d'évaporation par faisceau électronique ou par métallisation cathodique.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que la couche métallique mince est appliquée dans une épaisseur d'environ 500 nm ou moins, en particulier d'environ 250 nm au moins.
  4. Procédé selon au moins l'une quelconque des revendications 1 à 3, caractérisé en ce que la couche métallique mince est structurée par un processus d'impression.
  5. Procédé selon la revendication 4, caractérisé en ce que la couche métallique mince est structurée du fait que
    a) une image imprimée, qui correspond aux zones à enlever de la couche métallique, est appliquée sur la couche métallique en utilisant une encre d'impression thermoplastique,
    b) la couche métallique de l'encre d'impression thermoplastique est pressée sous l'effet de la chaleur et de l'impression contre un film de contact et
    c) le film de contact est enlevé après refroidissement en même temps que l'encre d'impression thermoplastique et les zones à enlever de la couche métallique.
  6. Procédé selon la revendication 4, caractérisé en ce que la couche métallique mince est structurée, du fait que
    a) une image imprimée est imprimée sur le film support avant l'application de la couche métallique mince, laquelle image correspond aux zones à enlever par la suite de la couche métallique, l'encre d'impression présentant une faible adhérence pour le revêtement métallique consécutif,
    b) la couche métallique mince est appliquée sur le film support imprimé, et
    c) l'encre d'impression et la partie, appliquée sur l'image imprimée, du revêtement métallique sont enlevées de façon mécanique, en particulier par un jet d'air ou de liquide ou un dispositif de raclage mécanique.
  7. Procédé selon la revendication 4, caractérisé en ce que la couche métallique mince est structurée du fait que
    a) avant l'application de la couche métallique mince, une image imprimée est appliquée sur le film support avec l'utilisation d'une encre d'impression soluble, laquelle image correspond aux zones à enlever par la suite de la couche métallique,
    b) la couche métallique mince est appliquée sur le film support imprimé, et
    c) l'encre d'impression et la partie, appliquée sur l'image imprimée, de la couche métallique est enlevée en utilisant un solvant.
  8. Procédé selon la revendication 7, caractérisé en ce que, comme encre d'impression, on utilise une encre avec fraction de pigment élevée qui forme après le séchage une structure poreuse avec une grande surface.
  9. Procédé selon la revendication 7 ou 8, caractérisé en ce qu'une encre d'impression soluble à l'eau est utilisée et de l'eau est utilisée pour l'enlèvement de l'encre d'impression.
  10. Procédé selon la revendication 4, caractérisé en ce que la couche métallique simple est structurée du fait que
    a) une image imprimée est imprimée sur la couche métallique mince en utilisant une encre d'impression décapante et
    b) l'encre d'impression et la partie décapée de la couche métallique sont enlevées.
  11. Procédé selon la revendication 4, caractérisé en ce que la couche métallique mince est structurée du fait que
    a) une couche de protection est imprimée sur la couche métallique mince à l'exception des zones à enlever par la suite et
    b) la couche métallique mince est enlevée dans les zones non protégées.
  12. Procédé selon la revendication 11, caractérisé en ce qu'une encre d'impression résistante au décapage est appliquée comme couche de protection et la couche métallique mince est enlevée par décapage dans les zones non imprimées en particulier en utilisant une solution alcaline ou un acide.
  13. Procédé selon la revendication 4, caractérisé en ce que la couche métallique mince est structurée du fait que
    a) une encre d'impression organiquement soluble est imprimée sur la couche métallique mince à l'exception des zones à enlever par la suite,
    b) les zones non imprimées de la couche métallique sont dissoutes dans un bain galvanique par oxydation anodique et
    c) l'encre d'impression soluble est décollée avec un solvant organique.
  14. Procédé selon au moins l'une quelconque des revendications 1 à 3, caractérisé en ce que la couche métallique mince est structurée par enlèvement au laser.
  15. Procédé comprenant au moins l'une quelconque des revendications 1 à 3, caractérisé en ce que la couche métallique mince est structurée par un procédé d'électroérosion.
  16. Procédé selon au moins l'une quelconque des revendications 1 à 15, caractérisé en ce que le renfort galvanique est effectué immédiatement à la suite de la structuration de la couche métallique mince.
  17. Procédé selon au moins l'une quelconque des revendications 1 à 16, caractérisé en ce que le premier métal et le second métal présentent différentes propriétés visuelles, en particulier différentes encres ou différentes propriétés de réflexion.
  18. Procédé selon au moins l'une quelconque des revendications 1 à 17, caractérisé en ce que le premier métal et le second métal présentent différentes propriétés physiques, en particulier différentes propriétés électriques ou magnétiques, comme la conductibilité, la susceptibilité ou similaire.
  19. Procédé selon au moins l'une quelconque des revendications 1 à 18, caractérisé en ce que la couche métallique mince est formée à base d'aluminium, de chrome, d'or, d'argent, de cuivre, de fer, de nickel, de cobalt ou d'un alliage qui contient un ou plusieurs de ces métaux.
  20. Procédé pour la fabrication d'un film de sécurité pour des papiers de sécurité, des documents de valeur, des supports de données ou similaires, dans lequel une couche mince électroconductible est appliquée sur un film support, caractérisé en ce que la couche métallique mince électroconductible est renforcée par électrodéposition d'un métal, afin de former un revêtement métallique à faible résistance ohmique sur le film support.
  21. Procédé selon la revendication 20, caractérisé en ce que la couche électroconductible est imprimée.
  22. Procédé selon la revendication 21, caractérisé en ce que la couche électroconductible est appliquée sous forme structurée.
  23. Procédé selon l'une quelconque des revendications 20 à 22, caractérisé en ce que la couche électroconductible présente des pigments de métal ou du carbone ou des polymères électroconductibles.
  24. Procédé selon au moins l'une quelconque des revendications 1 à 23, caractérisé en ce qu'une couche métallique d'une épaisseur de 1 µm ou plus, de préférence de 5 µm ou plus est appliquée sur la couche mince électroconductible par l'électrodéposition.
  25. Procédé selon au moins l'une quelconque des revendications 1 à 24, caractérisé en ce que la couche métallique électrodéposée contient du cuivre, du nickel, du cobalt, du chrome, de l'argent ou de l'or.
  26. Procédé selon au moins l'une quelconque des revendications 1 à 25, caractérisé en ce que la couche métallique structurée et à faible résistance ohmique est réalisée sous forme d'une antenne, en particulier pour un système d'identification à fréquence radio.
  27. Procédé selon au moins l'une quelconque des revendications 1 à 26, caractérisé en ce que le film support est mis à disposition sous la forme d'une bande continue et le procédé est appliqué de façon continue.
  28. Procédé selon la revendication 27, caractérisé en ce que le film support est tiré par un bain galvanique avec la couche électroconductible, éventuellement structurée, l'épaisseur du revêtement galvanique étant régulée par le temps de séjour du film dans le bain galvanique et/ou par la transformation de métal dans le bain.
  29. Procédé selon la revendication 28, caractérisé en ce que dans le bain galvanique, le film support est mis en contact sur le côté doté de la couche mince électroconductible de cylindres conducteurs, afin d'établir un contact électrique pour l'électrodéposition.
  30. Film de sécurité (10) pour l'insertion dans ou pour l'application sur des papiers de sécurité, des documents de valeur, des supports de données ou similaires, comprenant un film support (12) avec un revêtement (14) électroconductible, de préférence structuré, caractérisé en ce que le revêtement (14) est formé par une couche (18) mince et électroconductible et un renforcement (20) métallique et électrodéposé de la couche mince (18).
  31. Film de sécurité comprenant un film support et un revêtement disposé dessus de façon amovible, de préférence structuré et électroconductible pour le transfert du revêtement à un paquet de sécurité, un document de valeur, un support de données ou similaire, caractérisé en ce que le revêtement est formé par une couche mince et électroconductible et un renfort métallique et électrodéposé de la couche mince.
  32. Film de sécurité (10) selon la revendication 30 ou 31, caractérisé en ce que le revêtement (14) électroconductible présente une épaisseur totale de plus de 1 µm, de préférence de plus de 5 µm.
  33. Film de sécurité (10) selon l'une quelconque des revendications 31 à 32, caractérisé en ce que la couche (18) mince et électroconductible est une couche métallique.
  34. Film de sécurité (10) selon la revendication 33, caractérisé en ce que la couche métallique (18) mince et le renfort électrodéposé présentent différents métaux.
  35. Film de sécurité (10) selon l'une quelconque des revendications 30 à 34, caractérisé en ce que le revêtement (14) électroconductible forme une antenne à faible résistance ohmique, en particulier pour un système d'identification à radiofréquence.
  36. Film de sécurité (10) selon l'une quelconque des revendications 30 à 35 fabriqué selon le procédé selon au moins l'une quelconque des revendications 1 à 25.
  37. Papier de sécurité (26) comprenant un film de sécurité (10) ou un revêtement métallique (14) d'un film de sécurité selon au moins l'une quelconque des revendications 30 à 36.
  38. Papier de sécurité (26) selon la revendication 37, caractérisé en ce que le film de sécurité (10) est disposé au-dessus d'une fenêtre (28) du papier de sécurité (26).
  39. Document de valeur (22) avec un film de sécurité (10) ou un revêtement métallique (14) d'un film de sécurité selon l'une quelconque des revendications 30 à 37.
  40. Document de valeur (22) selon la revendication 39, caractérisé en ce que le film de sécurité (10) est disposé au-dessus d'une fenêtre du document de valeur (22).
  41. Support de données comprenant un film de sécurité (10) ou un revêtement métallique (14) d'un film de sécurité selon au moins l'une quelconque des revendications 30 à 37.
  42. Support de données selon la revendication 41, caractérisé en ce que le film de sécurité (10) est disposé au-dessus d'une fenêtre du support de données.
EP03812166A 2002-12-04 2003-12-02 Feuille de securite et son procede de production Revoked EP1583871B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10256832A DE10256832A1 (de) 2002-12-04 2002-12-04 Sicherheitsfolie und Verfahren zur Herstellung derselben
DE10256832 2002-12-04
PCT/EP2003/013584 WO2004050951A2 (fr) 2002-12-04 2003-12-02 Feuille de securite et son procede de production

Publications (2)

Publication Number Publication Date
EP1583871A2 EP1583871A2 (fr) 2005-10-12
EP1583871B1 true EP1583871B1 (fr) 2008-02-27

Family

ID=32336000

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03812166A Revoked EP1583871B1 (fr) 2002-12-04 2003-12-02 Feuille de securite et son procede de production

Country Status (5)

Country Link
EP (1) EP1583871B1 (fr)
AT (1) ATE387542T1 (fr)
AU (1) AU2003296603A1 (fr)
DE (2) DE10256832A1 (fr)
WO (1) WO2004050951A2 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005048033B4 (de) * 2005-10-06 2010-01-21 Bundesdruckerei Gmbh Sicherheitsdokument
DE102005049891A1 (de) * 2005-10-17 2007-04-19 Leonhard Kurz Gmbh & Co. Kg Metallisierter Mehrschichtkörper
DE102007005884B4 (de) 2007-02-07 2022-02-03 Leonhard Kurz Stiftung & Co. Kg Sicherheitsdokument
DE102008063030A1 (de) * 2008-12-23 2010-06-24 Bundesdruckerei Gmbh Sicherheits- und/oder Wertdokument mit einer leitfähigen Struktur und Verfahren zu dessen Herstellung
WO2012153114A1 (fr) * 2011-05-06 2012-11-15 D W Spinks (Embossing) Limited Dispositif de sécurité fenêtré
EP2524814B1 (fr) 2011-05-18 2015-03-25 Landqart AG Améliorations apportées à des caractéristiques de sécurité

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1127043A (en) * 1967-01-26 1968-09-11 Portals Ltd Security papers
NL7515010A (nl) * 1975-01-16 1976-07-20 Siemens Ag Tegen namaak beveiligde legitimatiekaart.
US4552617A (en) * 1984-06-13 1985-11-12 Crane & Co. Security features in paper
DE3609090A1 (de) * 1986-03-18 1987-09-24 Gao Ges Automation Org Wertpapier mit darin eingelagertem sicherheitsfaden und verfahren zur herstellung derselben
ES2048186T3 (es) * 1988-03-04 1994-03-16 Gao Ges Automation Org Elemento de seguridad en forma de un hilo o de una banda para su incorporacion en documentos de seguridad y procedimiento para su fabricacion.
DE4344553A1 (de) * 1993-12-24 1995-06-29 Giesecke & Devrient Gmbh Sicherheitspapier mit einem faden- oder bandförmigen Sicherheitselement sowie Verfahren zur Herstellung desselben
DE19521048A1 (de) * 1995-06-09 1996-12-12 Giesecke & Devrient Gmbh Sicherheitsdokument und Verfahren zu seiner Herstellung
EP0953937A1 (fr) * 1998-04-30 1999-11-03 Securency Pty. Ltd. Elément de sécurité pour empêcher la contrefaçon de papiers valeurs
DE19834367A1 (de) * 1998-07-30 2000-02-03 Meto International Gmbh Bandmaterial, Sicherungselement und Verfahren zur Herstellung eines Sicherungselements für die elektronische Artikelsicherung

Also Published As

Publication number Publication date
AU2003296603A1 (en) 2004-06-23
DE10256832A1 (de) 2004-06-24
DE50309282D1 (de) 2008-04-10
EP1583871A2 (fr) 2005-10-12
WO2004050951A3 (fr) 2004-09-23
AU2003296603A8 (en) 2004-06-23
ATE387542T1 (de) 2008-03-15
WO2004050951A2 (fr) 2004-06-17

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