EP0680411B2 - Document a marque de securite optique dopee, papier composite stratifie utile pour produire le document et dispositif de controle de l'authenticite du document - Google Patents

Document a marque de securite optique dopee, papier composite stratifie utile pour produire le document et dispositif de controle de l'authenticite du document Download PDF

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Publication number
EP0680411B2
EP0680411B2 EP93924429A EP93924429A EP0680411B2 EP 0680411 B2 EP0680411 B2 EP 0680411B2 EP 93924429 A EP93924429 A EP 93924429A EP 93924429 A EP93924429 A EP 93924429A EP 0680411 B2 EP0680411 B2 EP 0680411B2
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EP
European Patent Office
Prior art keywords
layer
document
substances
adhesive layer
film structure
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.)
Expired - Lifetime
Application number
EP93924429A
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German (de)
English (en)
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EP0680411B1 (fr
EP0680411A1 (fr
Inventor
Erich Berger
Peter Fajmann
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Osterreichische National Bank
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Osterreichische National Bank
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Publication of EP0680411B1 publication Critical patent/EP0680411B1/fr
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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
    • B42D25/20—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
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/328—Diffraction gratings; Holograms
    • 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
    • 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
    • B42D25/45—Associating two or more layers
    • B42D25/465—Associating two or more layers using chemicals or adhesives
    • B42D25/47—Associating two or more layers using chemicals or adhesives using adhesives
    • B42D2033/04—
    • B42D2033/10—
    • B42D2033/18—
    • B42D2033/20—
    • B42D2035/20—
    • B42D2035/24—
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/916—Fraud or tamper detecting
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/14—Layer or component removable to expose adhesive
    • Y10T428/1476—Release layer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y10T428/24843—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] with heat sealable or heat releasable adhesive layer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y10T428/24893—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including particulate material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y10T428/24917—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including metal layer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
    • Y10T428/2804—Next to metal
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
    • Y10T428/2839—Web or sheet containing structurally defined element or component and having an adhesive outermost layer with release or antistick coating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31678—Of metal

Definitions

  • the invention relates to a document, e.g. Banknote, check, credit card, ID card or ticket, which is an optical Security feature in the form of a light reflecting and diffractive provided at least in some areas and / or refractive layer, e.g. a hologram, an interference layer, a (computer-generated) Diffraction structure or the like has, wherein the optical security feature is provided with doping material and in a film structure is present, which is attached to the document by means of an adhesive layer and, if appropriate has at least one transparent layer in the film structure.
  • a document e.g. Banknote, check, credit card, ID card or ticket
  • an optical Security feature in the form of a light reflecting and diffractive provided at least in some areas and / or refractive layer, e.g. a hologram, an interference layer, a (computer-generated) Diffraction structure or the like has, wherein the optical security feature is provided with doping material and in a film structure is present, which is attached to the document by
  • the invention is concerned with a film structure, for the production of such documents, with a carrier film and a transfer layer which can be detached therefrom and which is at least the embossed optical security feature forming, light reflecting as well as diffractive and / or refractive layer, in particular as an embossing film, is preferably formed as a hot stamping film, and on the side of the reflective side facing away from the carrier film Layer has an adhesive layer, at least one transparent layer being arranged in the film structure can.
  • the known documents or embossing foils have an optical diffraction effect as a security feature all against color copy structure, such diffraction optically effective, i.e.
  • Light reflecting, Diffractive and / or refractive structures have the basic advantage that they are with the unarmed eye recognized, but can also be read by machine.
  • Typical structures applied in particular to banknotes include Kinegrams and pixelgrams. The falsification of such structures is very difficult, but is still in preparation all feasible if it is possible to expose the correspondingly structured surface and galvanically to take impressions or to copy phototechnically.
  • DE-OS 37 41 179 discloses the use of two security features, namely firstly, a relief embossed in paper and thus already palpable, and secondly a luminescent relief as a second security feature Substances on the peaks or in the valleys of the relief.
  • a transfer belt can be used, the layers of which are applied to the document by means of an adhesive layer can be, the transfer ribbon, however, a color layer of a luminescent substance in addition to this luminescent layer can contain a color pigment layer.
  • DE-OS 39 06 695 shows the embedding of a tape serving as a security element in a document.
  • the Band consists of a translucent plastic film, which with characters or patterns in the form of recesses is provided, with additionally luminescent substances in areas that are identical to the recesses are arranged.
  • the known state of the art can thus be summarized in that it is known luminescent substances on the one hand in the area of application of the non-optical features by (partial) printing, To apply coating, embossing or also with transfer ribbon transfer and on the other hand in the area of application optical characteristics (e.g. reflective grid structure with a number of lines of about 1000 / mm and line depth of about 100 nm) to be used to secure documents with protective coatings that cover the surface.
  • optical characteristics e.g. reflective grid structure with a number of lines of about 1000 / mm and line depth of about 100 nm
  • the object of the invention is now the authenticity detection of the optical feature applied to a document by verifying the authenticity independent of an existing (forged) hologram lattice structure, for example to be able to perform and thereby design the optical feature so that a reliable machine detection guaranteed in the high-speed range (10 m / sec) without incorrect readings and resulting rejections can be.
  • Documents should therefore only be rejected as suspicious if an imitation of the optical feature is present or this is missing entirely.
  • documents with damaged optical Features in the sorting process are controlled in a storage compartment for unusable documents and therefore none considerable effort in the form of manual processing, like this for Rejection is necessary.
  • the adhesive layer at least one luminescent substance is doped. It is also possible that different luminescent substances are contained in the adhesive layer.
  • the inventive design of the document on the one hand enables a simple and therefore extremely inexpensive authenticity measurement arrangement and on the other hand a completely negligible rejection rate at the machine processing of the documents achieved.
  • a high-quality professional made with the intention of deception Falsification of the structure of the optical feature is nevertheless machine-recognizable and in the case of counterfeiting, this during the sorting process or by one trained cashier can be eliminated or recognized.
  • the incorporation of the luminescent substances into the adhesive layer has the advantage that in the case of a Attempted manipulation of the optical security feature, e.g. trying one Lifting or peeling, still parts of the adhesive layer and thus the Doping material stuck to the document.
  • the adhesive layer with its thickness of about 6 ⁇ m, it is the thickest layer in the film structure.
  • Many Luminescent materials, such as rare earths, are more inorganic Natural and must be milled, with their particle sizes below 5 ⁇ m Significantly lose or lose lighting properties.
  • Many of the for circulating Banknotes suitable luminescent pigments with sufficient aging, UV and Chemical resistance can only be produced with particle sizes above about 5 ⁇ m.
  • luminescent substances in the adhesive layer has an opposite for example, structures which have a purely optical diffraction effect have the advantage that Security feature can still be determined when the document or Foil structure, e.g. mechanical, badly damaged. Unless it's a forger the diffractive optical structure should succeed on a fake one To transfer the document of value would still be the forgery because of the missing luminescent properties on the fake, but with the original diffractive structure provided document.
  • the admixture of luminescent substances provided according to the invention to the adhesive layer in the film structure can practically without additional effort in the usual production of the documents or the film structure can be realized and thus offers a very significant increase in the security effect without noticeable additional costs. If necessary, from security or production engineering considerations the application of the doped adhesive layer also either retrospectively on the prefabricated optical present on carrier film Security feature or in advance on the carrier material, especially paper, at Paper or document manufacturers take place.
  • the luminescent Substances only partially in the adhesive layer preferably in one certain, preferably machine-readable patterns are provided additional securing options, because then not just a general admixture of the luminescent substances to the adhesive layer is sufficient, but additionally that luminescent substances have to be introduced in a very specific way, which is only possible using special machines.
  • Luminescent substances are expediently fluorescent or phosphorescent, the decision to use fluorescent or phosphorescent substances of the respective purpose depends, but possibly there is also the possibility of fluorescent and use phosphorescent substances together, optionally each of the To provide substances in a certain pattern.
  • Substances have narrow-band fluorescent substances, e.g. from the Group of rare earths proven. Also fluorescent substances are very closely adjacent emission compared to the excitation wavelength and those with same emission wavelength can be used advantageously. The presence or The absence of substances of this type can be known from those known per se Determine measuring devices with great accuracy, already using luminescent substances that differ in terms of their luminescent properties Deviate slightly from original fabrics, can be safely determined, above all because the radiation devices used in checking the value documents etc. can be adapted exactly to the substances to be tested.
  • the Adhesive layer is formed by a hot melt adhesive, which is then the usual Application method for hot stamping foils easily a reliable adhesion generated.
  • the transparent layer in the film structure consists of a film structure expediently according to the invention from one of the known Transparent coatings.
  • the reflective layer of one, preferably by Evaporating in a thin metal layer, e.g. one Aluminum layer is formed.
  • a release layer e.g. a Wax layer
  • the Value document 1 has banknote paper as the carrier 1, however
  • the carrier can also use a synthetic one Paper, a plastic film or, in the case of a credit card, a plastic card his.
  • a plastic card can be embossed on its front, for example Letters bear the name of the owner and an identification number.
  • the Value document 1 has a local security feature, which in a film structure, which can be a layer composite 4 is present, which is shown in FIGS. 3 and 4 is shown where it is formed as an embossing film.
  • the layer composite 4 There is an optical security feature in the layer composite 4, namely a light reflective and diffractive and / or refractive structure present, the For example, is formed by a thin metal layer 5, which in the Embodiment of FIGS. 1 and 2 between one drawn as the top one transparent layer 6 embedded in the layer composite 4 and an adhesive layer 7 is.
  • the adhesive layer 7 serves to fix the layer composite 4 on the Surface of the document 1.
  • the transparent layer 6 in the layer composite 4 the is drawn as the top layer in the exemplary embodiment (FIG. 2), which covers that of the Metal layer 5 formed, diffraction-optical structure and difficult thus a decrease in the structure attempted forgery.
  • luminescent substances are present in the adhesive layer 7. Such substances can also be known in the transparent layer 6 be provided. You can, as in the embodiment of FIG. 1, only in areas, namely in area 8, where in the exemplary embodiment Head representation is located. A preparation can be used as a substance narrow band fluorescent rare earths are used.
  • the security feature in the document of value according to FIG. 1 thus exists not only from the diffraction optically effective, possibly specially shaped structure in the metal layer 5, but additionally in the layer composite 4 of the Areas with luminescent properties are present, these properties are also determined mechanically by readers and can be checked.
  • the attachment of the optical security feature with luminescent properties according to the invention on documents of value in take place in any way, for example also in that the layers of Layer composite 4 are applied in succession.
  • the layer composite 4 as in Fig. 3 schematically shown, is applied to a carrier film 9 and as Stamping foil, advantageously as a hot stamping foil, is used.
  • Stamping foils can, for example, as described in DE 34 22 910 C1, be constructed. They have a carrier film 9 on which with the interposition a release layer 10 made of wax which is designated as a whole by 11 Transfer position is arranged.
  • a release layer 10 made of wax which is designated as a whole by 11 Transfer position is arranged.
  • the transfer layer 11 consists of an adhesive layer 12 and a transparent layer 13, in the layer composite.
  • a reflective layer between the adhesive layer and the transparent layer Layer 15 made of metal arranged, at least in some areas, an optical diffraction effective, i.e. Has light refractive or diffractive structure 14.
  • the layer composite 4 (the embossing foils) is in turn according to DE 34 22 910 C1, first the release layer 10 on the carrier film 9 0 and then the transparent layer 13 applied in the layer composite.
  • the ones from Backing film 9 facing surface of the transparent layer 13 is with the desired refractive or diffractive structure 14 introduced.
  • the structured surface of the transparent layer then becomes Generation of the reflective layer 15 metallized, for example by Evaporation of aluminum in a vacuum.
  • the layer composite 4 is then through Application of the adhesive layer 12 completed.
  • the adhesive layer is in areas 16 12 luminescent substances available.
  • the reflective layer 15 made of metal may be interrupted in these areas.
  • the carrier 1 is transparent in order to test for Presence of the luminescent substances from the underside of the carrier to be able to make, especially if the carrier 1 is a plastic card.
  • the luminescent ones Regions 16 may also be present outside the metal layer 5.
  • the luminescent substances can also be used in the entire adhesive layer 12 may be present, which is for certain security purposes is quite sufficient. It should also be noted that as a luminescent Substances a wide variety of substances, for example fluorescent and phosphorescent substances, also used in different mixtures can be.
  • the group of organic luminous pigments includes an almost colorless, typical at 545 nm fluorescent benzoxazine derivative from the company Riedel-de Haen is sold under the name Lumilux CD 304.
  • the range of fluorescent substances in the form of solutions is one of them heterocyclic thioxanthene dye available from Bayer under the Trade name Macrolexfluorescence Red GG is sold.
  • Rare earths are phosphorescent and have very typical absorption and Emission spectra with narrow-band emission lines.
  • Scandium, yttrium and the lanthanides to call the europium are Scandium, yttrium and the lanthanides to call the europium.
  • luminescent materials in the form of organic semiconductors
  • conjugated polymers carbon chains in which double and Alternate single bonds
  • poly-p-phenylene-vinylene conjugated polymers (carbon chains in which double and Alternate single bonds) known as poly-p-phenylene-vinylene, whereby by Applying an electrical voltage stimulating electroluminescence which is used especially for static or quasi-static tests can be.

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  • Manufacturing & Machinery (AREA)
  • Finance (AREA)
  • Business, Economics & Management (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Engineering & Computer Science (AREA)
  • Accounting & Taxation (AREA)
  • Credit Cards Or The Like (AREA)
  • Holo Graphy (AREA)
  • Glass Compositions (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
  • Preparing Plates And Mask In Photomechanical Process (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Led Devices (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Laminated Bodies (AREA)

Claims (17)

  1. Document, par exemple billet de banque, chèque, carte de crédit, pièce d'identité ou ticket qui porte une marque optique de sécurité constituée d'une couche réfléchissante et diffractante et/ou réfringente, par exemple un hologramme, une couche d'interférence, une structure diffractante (générée par ordinateur) ou similaire, située sur au moins une partie du document, la marque optique de sécurité faisant partie d'une structure stratifiée qui est fixée sur le document au moyen d'une couche adhésive et qui comprend, le cas échéant, une ou plusieurs couches transparentes dans la structure stratifiée, caractérisé en ce que la couche adhésive (7, 12) est dotée avec au moins une substance luminescente.
  2. Document selon la revendication 1, caractérisé en ce que la couche adhésive (7, 12) contient différentes substances luminescentes.
  3. Document selon la revendication 1 ou 2, caractérisé en ce que les substances luminescentes présentes dans la couche adhésive (7, 12) ne sont prévues que dans certaines zones.
  4. Document selon la revendication 3, caractérisé en ce que les substances luminescentes dans la couche adhésive (7, 12) sont prévues suivant un dessin déterminé (8, 16), de préférence lisible par une machine.
  5. Document selon une des revendications précédentes, caractérisé en ce que les substances luminescentes sont des substances fluorescentes ou phosphorescentes ou des mélanges de telles substances, les substances fluorescentes étant, le cas échéant, disposées selon un dessin qui diffère du dessin selon lesquel les substances fluorescentes sont disposées.
  6. Document selon la revendication 5, caractérisé en ce que des terres rares fluorescentes à bande étroite servent de substances luminescentes.
  7. Structure stratifiée pour la fabrication d'un document de valeur selon une des revendications 1 à 6, comprenant un film porteur et une couche de transfert détachable de celui-ci, qui présente au moins la couche constituant la marque optique de sécurité réfléchissante et diffractante et/ou réfringente qui est conformée en particulier en pellicule à estamper, de preference en pellicule à estamper à chaud, et qui présente également une couche adhésive du côté de la couche réfléchissante qui est opposé au film porteur, une couche transparente pouvant être disposée dans la structure stratifiée, de préférence entre la couche réfléchissante et le film porteur, caractérisée en ce que des substances luminescentes sont contenues dans la couche adhésive (12).
  8. Structure stratifiée selon la revendication 7, caractérisée en ce que différentes substances luminescentes sont contenues dans la couche adhésive (12).
  9. Structure stratifiée selon la revendication 7 ou 8, caractérisée en ce que les substances luminescentes contenues dans la couche adhésive (12) ne sont prévues que dans certaines zones.
  10. Structure stratifiée selon la revendication 9, caractérisée en ce que les substances luminescentes contenues dans la couche adhésive (12) sont prévues suivant un dessin déterminé, de préférence lisible par une machine.
  11. Structure stratifiée selon une des revendications 7 à 10, caractérisée en ce que les substances luminescentes sont des substances fluorescentes ou phosphorescentes ou des mélanges de telles substances, les substances fluorescentes étant, le cas échéant, disposées selon un dessin qui diffère du dessin selon lequel les substances phosphorescentes sont disposées.
  12. Structure stratifiée selon la revendication 11, caractérisée en ce que des terres rares fluorescentes à bande étroite servent de substances luminescentes.
  13. Structure stratifiée selon une des revendications 7 à 12, caractérisée en ce que la couche adhésive (12) est constituée par un adhésif à fusion.
  14. Structure stratifiée selon une des revendications 7 à 13, caractérisée en ce que la couche transparente (13) est une couche de laque transparente.
  15. Structure stratifiée selon une des revendications 7 à 14, caractérisée en ce que la couche réfléchissante (15) est constituée par une fine couche métallique formée, de préférence, par métallisation sous vide.
  16. Structure stratifiée selon une des revendications 7 à 15, caractérisée en ce qu'est disposée, entre le film porteur (9) et la couche de transfert (11), une couche de détachement (10), par exemple une couche de cire.
  17. Procédé de vérification d'un document selon une des revendications 1 à 6, caractérisé en ce que les substances luminescentes présentes sur le document sont activées à partir d'au moins une source et l'émission des substances luminescentes activées est mesurée dans au moins un récepteur, par exemple des photodiodes, des photomultiplicateurs, des matrices CCD pouvant servir de récepteur et par exemple un tube laser, des diodes laser, des diodes luminescentes, des tubes fluorescents, des lampes halogène, des tubes à rayons X, des tubes à faisceau électronique ainsi que des émetteurs radioactifs pouvant servir de source.
EP93924429A 1992-11-18 1993-11-17 Document a marque de securite optique dopee, papier composite stratifie utile pour produire le document et dispositif de controle de l'authenticite du document Expired - Lifetime EP0680411B2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AT2298/92 1992-11-18
AT0229892A AT403967B (de) 1992-11-18 1992-11-18 Dokument und folienaufbau zur herstellung eines dokumentes
AT229892 1992-11-18
PCT/AT1993/000176 WO1994011203A1 (fr) 1992-11-18 1993-11-17 Document a marque de securite optique dopee, papier composite stratifie utile pour produire le document et dispositif de controle de l'authenticite du document

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EP0680411A1 EP0680411A1 (fr) 1995-11-08
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JP (1) JPH08506772A (fr)
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WO1994011203A1 (fr) 1994-05-26
ATE163159T1 (de) 1998-02-15
AU5411894A (en) 1994-06-08
AU691475B2 (en) 1998-05-21
MX9307182A (es) 1995-01-31
CA2149550A1 (fr) 1994-05-26
US6165592A (en) 2000-12-26
RU95112499A (ru) 1996-12-27
EP0680411B1 (fr) 1998-02-11
ATA229892A (de) 1997-11-15
AT403967B (de) 1998-07-27
CA2149550C (fr) 2006-05-16
ES2115081T5 (es) 2003-04-16
EP0680411A1 (fr) 1995-11-08
JPH08506772A (ja) 1996-07-23
ES2115081T3 (es) 1998-06-16
DK0680411T3 (da) 1999-02-22
DE59308150D1 (de) 1998-03-19
DK0680411T4 (da) 2003-04-14

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