EP2164707B1 - Signe de sécurité et son procédé de réalisation - Google Patents

Signe de sécurité et son procédé de réalisation Download PDF

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Publication number
EP2164707B1
EP2164707B1 EP08773509A EP08773509A EP2164707B1 EP 2164707 B1 EP2164707 B1 EP 2164707B1 EP 08773509 A EP08773509 A EP 08773509A EP 08773509 A EP08773509 A EP 08773509A EP 2164707 B1 EP2164707 B1 EP 2164707B1
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EP
European Patent Office
Prior art keywords
laser
openings
marking substance
modified
substrate
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.)
Active
Application number
EP08773509A
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German (de)
English (en)
Other versions
EP2164707A1 (fr
Inventor
André Gregarek
Manfred Heim
Bernhard Wiedner
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.)
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Publication date
Application filed by Giesecke and Devrient GmbH filed Critical Giesecke and Devrient GmbH
Priority to PL08773509T priority Critical patent/PL2164707T3/pl
Publication of EP2164707A1 publication Critical patent/EP2164707A1/fr
Application granted granted Critical
Publication of EP2164707B1 publication Critical patent/EP2164707B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
    • B41M3/14—Security printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/24—Ablative recording, e.g. by burning marks; Spark recording
    • 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
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/267—Marking of plastic artifacts, e.g. with laser
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/28—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using thermochromic compounds or layers containing liquid crystals, microcapsules, bleachable dyes or heat- decomposable compounds, e.g. gas- liberating

Definitions

  • the invention relates to a security feature for a security element, a security paper or a data carrier having a carrier, in which one or more through openings are to be introduced.
  • the invention relates to a method for producing such a security feature and to a security element, a security paper and a data carrier having such a security feature.
  • Identity cards such as credit cards or identity cards
  • the production of continuous openings in value documents by laser cutting has also been known for some time.
  • the document DE 43 34 848 C1 describes a security with a closed by a transparent cover film window-like opening, which can be generated by a laser cutting process.
  • a security document such as a banknote, passport or the like, comprising a security paper and a laser generated mark, wherein the security paper has at least a portion having a coating, and the mark extends beyond the boundary region between the coating and security paper.
  • the publication EP 0 956 975 A2 relates to a copy protection element comprising a metal layer and another layer.
  • the physical / optical properties of the further layer are such that with the aid of a laser beam, markings introduced into the copy protection element can not be reproduced by electrophotography.
  • the publication EP 1 661 729 A2 relates to the laser marking of value documents, which is based on interaction of the laser radiation with the ink systems used.
  • the publication WO 02/03104 A2 describes a method for producing a security feature in which a substrate coated with a metal layer is provided with throughgoing or non-penetrating openings by means of laser radiation.
  • the metal layer is vaporized by the action of the laser radiation and thus completely removed.
  • the object of the present invention is to further improve security elements, security papers and data carriers of the type mentioned above with regard to their security against imitation.
  • the inventive method relates to the production of a security feature that in a separate security element for application to or for insertion in a data carrier, in a security paper or a security film for the production of documents of value or the like, or in a data carrier, such as a banknote, identity card or the like, may be present. It is only essential that the security element, security paper or the data carrier provides a support for the security feature, in which the one or more continuous openings are introduced. Although in the following, for the sake of simplicity, openings are generally spoken of in the majority, it is always understood that according to the invention, only a single opening can be provided in the support.
  • the marker can not only be modified in the adjoining directly to the opening edge region of the opening, the laser-modified region can due to the properties of the Interaction of laser radiation and marking substance also have a certain small distance from the opening. Therefore, the phrase "near area of the openings" also includes, besides the edge area of the opening immediately adjoining the opening, an area which is close to the opening with a certain small distance. The small distance can be a few tenths of a millimeter or a few millimeters, depending on the application.
  • the laser-modifiable marking substance is modified by the cutting laser beam itself when introducing the through openings into the carrier.
  • the fact that the laser energy in an outer region of the profile of the cutting laser beam is sufficient to simultaneously modify the marking material arranged in the edge region or in the vicinity of the opening to be cut at the same time as the laser cutting process. In this way, a perfect registration of openings and laser-modified edge area or near area is automatically ensured.
  • the through openings are introduced into the carrier and on the other hand be modified with lower laser power of the laser-modifiable marker in the vicinity of the openings. Since both steps are carried out in the same operation, a highly accurate registration of openings and laser-modified near area is achieved.
  • a highly accurate registration is understood to mean a registration with an offset of less than 0.4 mm, in particular less than 0.2 mm or even less than 0.1 mm. The registration has this high accuracy, preferably in all directions.
  • the through openings can be introduced into the carrier by a first laser module and the laser-modifiable marking substance in the vicinity of the openings can be modified by a second laser module, wherein the first and second laser modules are controlled by the same control signal.
  • the use of two laser modules for the two processing steps enables a particularly high production speed and, by using the same control signal for both laser modules, at the same time permits precise registration.
  • the offset is less than 0.5 mm, in particular less than 0.3 mm in such a precise registration.
  • the registration preferably has this accuracy in all directions.
  • this is coated in an advantageous variant of the invention on its surface with the marker, for example by a printing process.
  • the marking substance is introduced into the volume of the carrier.
  • different methods are available.
  • the marker can advantageously be mixed with the sheet formation of the paper pulp.
  • a further advantageous possibility is to introduce the marking substance into the volume of the paper substrate in a dipping bath or to impregnate the paper substrate in a size press with the marking substance.
  • the marking substance can likewise be introduced into the volume of the film during the production of the film or subsequently by means of an impregnation step.
  • the marker is inventively provided at least in the vicinity of the openings to be generated.
  • the marker since the marker is only modified by the application of laser radiation, it can be readily available in a wide environment around the openings or even in the entire carrier. If the marker material is present, for example, in the entire carrier, it can of course also be used in another area of the security element, security paper or data carrier for generating a further security feature, for example for generating an individual identification in a further working step.
  • thermoreactive colored pigments such as ultramarine blue can be used for this purpose.
  • marking substances whose infrared-absorbing properties or their magnetic, electrical or luminescent properties are changed by the action of the laser radiation.
  • Security features having openings with such a laser-modified proximity area can be used in particular for mechanical authentication.
  • a combination of different marking substances for example in order to enable both a visual and a machine authenticity check of the security feature. When using several markers, these can come to lie next to each other as well as in different layers one above the other.
  • an oblique cutting edge can be ensured, for example, by guiding the laser beam at a predetermined angle to the surface normal of the carrier when producing the openings.
  • the size of the modification region can be adjusted, as explained in more detail below.
  • the through openings can be produced in particular in the form of perforations, cuts or extended window areas.
  • particularly simple structures are produced by producing with the laser beam a plurality of circular, continuous openings with a circular laser-modified marking substance near zone. Such structures can be used beyond their visual and tactile effect by suitable detection routines as copy protection constellations.
  • openings are introduced from opposite sides of the security element forth with the laser beam.
  • the laser beam can be used to introduce first openings from a first side of the security element and second openings from a second, opposite side of the security element, the first and second openings complementing one another in an overall image recognizable by transmitted light.
  • the first openings or their modified near areas are only visible in the incident light from the first side.
  • the second openings or their modified near areas can also be seen in incident light only from the second side be. This can be achieved for example by very small holes and / or a corresponding coating of the security element with a marker.
  • transmitted light on the other hand, regardless of the near-field modification, both the first and the second openings appear and form an overall image.
  • the laser-modifiable marking substance can be modified by the action of laser radiation in an edge region of the openings directly adjoining the openings to be produced.
  • laser-modifiable effect pigments are used as the laser-modifiable marker.
  • Such effect pigments are available to the person skilled in the art with different properties, in particular with regard to their body color, the color change under laser action, the threshold energy and the required laser wavelength.
  • effect pigments which do not (only) change their visible color upon laser irradiation but their infrared-absorbing, magnetic, electrical or luminescent properties are known to the person skilled in the art.
  • the modification of the effect pigments can be made with laser radiation in the ultraviolet, visible or infrared spectral range, for example, a CO 2 -Lase a wavelength of 10.6 microns.
  • a pigment-free laser-modifiable marker is used.
  • Pigment-free marking substances can also be applied to the carrier or introduced into the carrier volume, for example as a stitch or printing ink. With pigment-free markers it is possible to create a coating of high transparency, into which high-speed laser action is required a permanent and high-contrast mark can be introduced.
  • Pigment-free marking substances can be modified by laser radiation in the ultraviolet, visible or infrared spectral range, for example with the 10.6 ⁇ m radiation of a CO 2 laser.
  • Specific, non-limiting examples of pigment-free laser-modifiable markers are in the references WO 02/101462 A1 . US 4,343,885 and EP 0290 750 B1 specified, the disclosure of which is included in the present description in this regard.
  • the invention also encompasses a security element for security papers, documents of value and the like with a security feature produced according to the method described, wherein the security element has a carrier into which apertures are introduced through the action of laser radiation and which contains a laser-modified marking substance in the vicinity of the openings.
  • a security element may for example be in the form of a security thread, a label, a transfer element or a covering film for a window area or a hole in a value document, such as a banknote.
  • the invention also includes a security paper for the production of documents of value or the like with a security feature produced by the described method, wherein the security paper has a carrier are introduced into the through the action of laser radiation through openings and containing a laser-modified marker in the vicinity of the openings ,
  • the security paper has a carrier are introduced into the through the action of laser radiation through openings and containing a laser-modified marker in the vicinity of the openings .
  • this can also be provided with a security element of the type described above.
  • the invention further includes a data carrier with a security feature produced by the method described, in particular a document of value, such as a banknote, ID card or the like, wherein the data carrier has a carrier, are introduced into the through the action of laser radiation through openings and a laser-modified marker in the Contains near area of the openings.
  • a data carrier with a security feature produced by the method described in particular a document of value, such as a banknote, ID card or the like, wherein the data carrier has a carrier, are introduced into the through the action of laser radiation through openings and a laser-modified marker in the Contains near area of the openings.
  • the latter can also be provided with a security element according to the invention or can be produced from a security paper according to the invention.
  • FIGS. 1 and 2 show a schematic representation of a banknote 10, which in an in Fig. 2 shown in more detail, feature of the invention 12 is provided with a laser hole with edge effect.
  • the opening 14 is provided with a red edge 18 which revolves without offset.
  • the paper substrate 16 has been provided with laser-modifiable effect pigments before the laser cutting in a certain surrounding area 20 of the opening 14 to be produced, which show the desired color change upon exposure to laser radiation.
  • FIG. 3 (a) schematically shows the substantially Gaussian spatial energy distribution 30 of a cutting laser beam.
  • the laser energy exceeds the threshold energy E 1 required to cut the substrate 16.
  • E 2 is in Fig. 3 (a) denotes the reaction energy of the effect pigments, when exceeded the desired color change takes place.
  • the marking region 34 the laser energy lies between the energy E 2 required for the color change and the energy E 1 required for cutting, so that a color change of the effect pigments is induced in this region 34 but the substrate is not cut.
  • the paper substrate 16 is therefore colored during laser cutting by the laser beam 30 in an edge region 18 of the cut opening 14 in perfect registration to the opening 14.
  • the width of the colored edge region 18 corresponds to the width of the marking region 34 and hangs from the beam profile, the reaction energy of the effect pigments used and the material properties of the carrier.
  • the laser energy is below the reaction threshold of the effect pigments, so that the substrate is not changed there.
  • the laser-modifiable effect pigments can be applied to the substrate 16, for example printed on, or can be introduced into the volume of the substrate 16. This can already be done in papermaking by admixture of the effect pigments to the paper pulp during sheet formation or else subsequently in a dip bath or by impregnation in the size press.
  • thermoreactive color pigments which change their visible color by the action of the laser radiation
  • thermoreactive color pigments such as ultramarine blue
  • effect pigments with different threshold energies or a combination of visually and mechanically detectable effect pigments can also be used to produce a number of registered edge effects.
  • pigment-free laser-modifiable marker can also be printed on the substrate 16 or introduced into the volume of the substrate 16, for example as a stitch or printing ink.
  • Non-pigmented, laser-modifiable coatings can have a very high transparency in the unlabelled state exhibit.
  • laser radiation for example a CO 2 laser at 10.6 microns can be a high speed permanent and high-contrast markings, for example, produce a black marking in the coating.
  • a modification of the marking substance by the heat generated during laser beam cutting is also suitable.
  • the modified edge area of the opening may even be larger than the beam extent, as in FIG Fig. 3 (b) clarified.
  • Fig. 3 (b) schematically shows the spatial distribution 30 'of the heat energy in the substrate 16, the cutting of an opening with the laser beam of Fig. 3 (a) is produced.
  • the heated area extends beyond the beam diameter due to the heat conduction in the substrate.
  • the substrate 16 is cut in the inner cut region 32, since there exceeds the laser energy E required for cutting threshold energy E 1 . If the effect pigments or the pigment-free marking substance now respond at least also to the heat energy E 'generated during cutting and E 2 ' denotes the reaction energy of the effect pigments or of the pigment-free marking substance, at which the desired color change occurs, then the results for Fig. 3 (b) assumed conditions, a marking region 34 ', the extent of which can easily be greater than the dimension of the laser beam.
  • the marking material is removed or destroyed immediately next to the cutting edge, and is modified only from a certain small distance from the cutting edge, as in the FIGS. 3 (c) and 4 illustrated.
  • the laser modification is done in this variant of the invention no longer in the immediate edge region, but at a certain distance from the cutting edge in the vicinity of the opening.
  • Fig. 3 (c) is like in Fig. 3 (b) the spatial distribution 30 'of the heat energy in the substrate 16 shown, it being assumed for the representation that the marker used is modified from a heat energy E 2 ' and above a heat energy E 3 'is removed or destroyed.
  • the laser beam in this case generates in the substrate a cutting region 32, through which the opening 14 (FIG. Fig. 4 ), an immediately adjacent destruction region 36 in which the label is ablated or destroyed, and a marker region 34 'adjacent to the destruction region 36 in which only the desired color change of the label is induced.
  • FIG. 2 5 shows a plan view of a feature region according to the invention, this results in an opening 14 with a perfectly adjusted, in a small distance circumferential modification region 18 '.
  • the distance of the modification region 18 'to the cutting edge 38 of the opening 14 corresponds to just the width of the destruction region 36 of the Fig. 3 (c) ,
  • the modification area is not immediately adjacent to the cutting edge of the opening, so he is still in the vicinity of the terminology used in this description, but no longer in the edge region of the opening.
  • the opening subsequent modification area such as in Fig. 2 on the other hand, it is not only in the vicinity, but even in the edge region of the opening.
  • edge effect can also be formed along the entire cut edge, as described with reference to FIG Fig. 5 explained.
  • the marking substance is introduced in an environment of the opening to be produced not only on the surface, but in the volume 42 of the carrier 40, as in FIG Fig. 5 (a) shown.
  • an inclined cutting edge 46 is generated, as in the FIGS. 5 (b) and (c) for example by performing the laser cutting at a predetermined angle to the surface normal of the carrier and / or because of the Gaussian energy distribution of the laser beam.
  • the energy threshold required for the reaction of the marking substance is thereby exceeded in an edge region 48 along the oblique cutting edge 46 and the marking substance is modified.
  • a narrower or wider modified edge region can be produced, as in FIG Fig. 5 (b) and (c) illustrated.
  • a laser module in the same operation with higher laser power insert through holes 52 in the carrier 50 and to modify the laser-modifiable marker in the vicinity 54 of the openings 52 with lower laser power. Since laser cutting and pigment modification are performed in the same operation, highly accurate registration of hole design 52 to effect design 54 is possible with less than 0.1 mm offset.
  • the modified short-range region 54 in this variant of the invention can also be separated from the cut opening 52 by a certain largely freely selectable gap 56.
  • the simple representation of the Fig. 6 serves only to explain the principle of the invention, in practice, of course, much more complex hole and effect designs can be generated.
  • a round opening 52 may be combined with a square or star-shaped effect design 54.
  • the production speed of a laser cutting system is reduced because the system has to fulfill two steps in one operation - cutting at high power setting and modifying at low power setting.
  • the laser cutting system can be driven with very good registration even at high speed.
  • FIG. 7 Another application of modified openings according to the invention is in Fig. 7 shown.
  • the banknote 60 shown there is provided with a feature area 62 with a plurality of laser holes 64, whose edge area, as described above, is inked in a register-accurate manner by a laser-induced color change of effect pigments.
  • laser holes can also be used to complicate or prevent the copying and processing of banknotes with scanners, color copiers, image processing programs or the like.
  • the laser holes 64 are arranged, for example, in the form of predetermined special constellations 66, which can be identified via the colored edges by suitable recognition routines from the reproduction devices or machining programs. The editing or output of image files with the predetermined constellations can then be restricted or inhibited.
  • Fig. 8 shows a security element 70 according to another embodiment of the invention, in which with a laser beam from opposite sides 72, 76 of the security element forth small openings 74, 78 are introduced.
  • Fig. 8 (a) shows first openings 74, which are introduced from the first side 72 of the security element 70 ago, in Fig. 8 (b) shown second openings 78 are introduced from the second opposite side 76 of the security element ago.
  • the carrier 80 of the security element is provided at least in the vicinity with a group of openings 74 and 78 with laser-modifiable effect pigments. As seen from the cross section through the security element of Fig. 8 (d) In the embodiment shown, the carrier 80 is even provided with an effect pigment layer 84, 88 in the vicinity of both aperture groups 74, 78, the effect pigments of the layer 84 having a color change to a first color, for example red, the effect pigments of the second layer 88 after laser action after laser action a color change to a second color, such as green, show.
  • the openings 74, 78 can be seen in incident light only from one side of the arrangement.
  • the openings 74 with a red edge can be seen from the first side of the security element ( Fig. 8 (a) ), from the second side of the security element forth only the openings 78 with green edge.

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  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Credit Cards Or The Like (AREA)
  • Laser Beam Processing (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Saccharide Compounds (AREA)

Claims (15)

  1. Procédé de fabrication d'une caractéristique de sécurité pour un élément de sécurité, un papier de sécurité ou un support de données, qui comprend un support (16), dans lequel doivent être produites une ou plusieurs ouvertures continues (14), présentant pour caractéristiques le fait que, dans le procédé :
    - le support (16) est, au moins dans le domaine proche des ouvertures à produire, pourvu d'une substance de marquage (20) modifiable par laser,
    - sous l'action d'un rayonnement laser, des ouvertures continues (14) sont produites dans le support (16), et
    - la substance de marquage modifiable par laser est, dans le domaine proche (18) des ouvertures (14), modifiée sous l'action d'un rayonnement laser,
    - la modification de la substance de marquage modifiable par laser ne résidant pas dans un enlèvement ou dans une destruction, mais dans le fait que la couleur visible, les propriétés d'absorption de l'infrarouge, magnétiques, électriques ou luminescentes de la substance de marquage modifiable par laser, sont modifiées sous l'action du rayonnement laser.
  2. Procédé selon la revendication 1, caractérisé en ce que la substance de marquage modifiable par laser est, lors de la production des ouvertures continues (14) dans le support (16), modifiée par le même faisceau laser.
  3. Procédé selon la revendication 1, caractérisé en ce que, grâce à un module laser, et au cours d'une seule et même passe, les ouvertures continues sont produites dans le support (16) avec une puissance laser élevée, et la substance de marquage modifiable par laser est modifiée dans le domaine proche des ouvertures grâce à une puissance laser plus faible.
  4. Procédé selon la revendication 1, caractérisé en ce que, grâce à un premier module laser, les ouvertures continues sont produites dans le support (16) et, grâce à un deuxième module laser, la substance de marquage modifiable par laser est modifiée dans le domaine proche (18) des ouvertures, le premier et le deuxième modules laser étant pilotés par un seul et même signal de commande.
  5. Procédé selon au moins l'une des revendications 1 à 4, caractérisé en ce que le support (16) est revêtu de la substance de marquage, ou encore la substance de marquage est introduite dans le volume (42) du support (40).
  6. Procédé selon au moins l'une des revendications 1 à 5, caractérisé en ce que le support (16) est constitué de papier ou d'une feuille plastique.
  7. Procédé selon au moins l'une des revendications 1 à 6, caractérisé en ce que les ouvertures continues sont produites dans le support (40) avec une arête oblique (46).
  8. Procédé selon au moins l'une des revendications 1 à 7, caractérisé en ce que le faisceau laser permet de produire des ouvertures (14) continues, circulaires, ayant un domaine proche (18) de substance de marquage modifiable par laser, de forme circulaire.
  9. Procédé selon au moins l'une des revendications 1 à 8, caractérisé en ce que les ouvertures (74, 78) sont produites à partir des faces opposées (72, 76) de l'élément de sécurité à l'aide du faisceau laser, et en particulier le faisceau laser permet de produire des premières ouvertures (74) à partir d'une première face (72) de l'élément de sécurité et des deuxièmes ouvertures (78) à partir d'une deuxième face opposée (76) de l'élément de sécurité, les première et deuxième ouvertures (74, 78) se complétant pour former une image globale, reconnaissable par transmission.
  10. Procédé selon au moins l'une des revendications 1 à 9, caractérisé en ce que la substance de marquage modifiable par laser est modifiée sous l'action d'un rayonnement laser dans un domaine marginal (18) des ouvertures (14), qui suit immédiatement les ouvertures (14) à produire.
  11. Procédé selon au moins l'une des revendications 1 à 10, caractérisé en ce que, en tant que substance de marquage modifiable par laser, on utilise des pigments à effets, ou encore on utilise une substance de marquage modifiable par laser ne contenant pas de pigments.
  12. Procédé selon au moins l'une des revendications 1 à 11, caractérisé en ce que, pour produire les ouvertures (14) et pour modifier la substance de marquage, on utilise un rayonnement laser dans le domaine spectral ultraviolet ou visible, ou un rayonnement laser dans le domaine spectral infrarouge, en particulier un rayonnement laser d'un laser à CO2, à une longueur d'onde d'environ 10,6 µm.
  13. Elément de sécurité pour papiers de sécurité, documents de valeur et analogues, comportant un support (16), dans lequel des ouvertures continues (14) sont produites sous l'action d'un rayonnement laser, ainsi qu'une substance de marquage modifiée par laser dans le domaine proche (18) des ouvertures (14), pouvant être fabriqué selon l'une des revendications 1 à 12, la modification de la substance de marquage modifiée par laser résidant non pas dans un enlèvement ou une destruction, mais dans le fait que la couleur visible, les propriétés d'absorption de l'infrarouge, magnétiques, électriques ou luminescentes de la substance de marquage modifiée par laser sont modifiées sous l'action du rayonnement laser.
  14. Elément de sécurité pour documents de valeur et analogues, comportant un support (16), dans lequel des ouvertures continues (14) sont produites sous l'action d'un rayonnement laser, ainsi qu'une substance de marquage modifiée par laser dans le domaine proche (18) des ouvertures (14), pouvant être fabriqué selon l'une des revendications 1 à 12, la modification de la substance de marquage modifiée par laser résidant non pas dans un enlèvement ou une destruction, mais dans le fait que la couleur visible, les propriétés d'absorption de l'infrarouge, magnétiques, électriques ou luminescentes de la substance de marquage modifiée par laser sont modifiées sous l'action du rayonnement laser.
  15. Support de données, en particulier documents de valeur, tels qu'un billet de banque, une carte d'identité ou analogues, comportant un support (16), dans lequel des ouvertures continues (14) sont produites sous l'action d'un rayonnement laser, ainsi qu'une substance de marquage modifiée par laser dans le domaine proche (18) des ouvertures (14), pouvant être fabriqué selon l'une des revendications 1 à 12, la modification de la substance de marquage modifiée par laser résidant non pas dans un enlèvement ou une destruction, mais dans le fait que la couleur visible, les propriétés d'absorption de l'infrarouge, magnétiques, électriques ou luminescentes de la substance de marquage modifiée par laser sont modifiées sous l'action du rayonnement laser.
EP08773509A 2007-07-03 2008-06-19 Signe de sécurité et son procédé de réalisation Active EP2164707B1 (fr)

Priority Applications (1)

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PL08773509T PL2164707T3 (pl) 2007-07-03 2008-06-19 Cecha zabezpieczająca i sposób jej wytwarzania

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DE102007030946 2007-07-03
DE102007036622A DE102007036622A1 (de) 2007-07-03 2007-08-02 Sicherheitsmerkmal und Verfahren zu seiner Herstellung
PCT/EP2008/004921 WO2009003587A1 (fr) 2007-07-03 2008-06-19 Signe de sécurité et son procédé de réalisation

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EP2164707A1 EP2164707A1 (fr) 2010-03-24
EP2164707B1 true EP2164707B1 (fr) 2012-01-25

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EP (2) EP2164708B1 (fr)
CN (1) CN101754862B (fr)
AT (2) ATE520537T1 (fr)
DE (2) DE102007036622A1 (fr)
PL (1) PL2164707T3 (fr)
RU (1) RU2464177C2 (fr)
WO (2) WO2009003588A1 (fr)
ZA (1) ZA201000737B (fr)

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WO2014180885A1 (fr) * 2013-05-10 2014-11-13 Fábrica Nacional De Moneda Y Timbre - Real Casa De La Moneda Procédé de fourniture d'une caractéristique de sécurité à un document de sécurité, et document de sécurité
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GB2559140B (en) * 2014-07-30 2020-09-02 Canadian Bank Note Co Ltd Security document having a protected window and method for making the same
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DE102016006931A1 (de) * 2016-06-06 2017-12-07 Giesecke+Devrient Currency Technology Gmbh Sicherheitsmerkmal und Verfahren zu dessen Herstellung
DE102016006929A1 (de) 2016-06-06 2017-12-07 Giesecke+Devrient Currency Technology Gmbh Sicherheitsmerkmal und Verfahren zu dessen Herstellung
DE102016009512A1 (de) * 2016-08-04 2018-02-08 Giesecke+Devrient Currency Technology Gmbh Sicherheitselement, Verfahren zum Herstellen eines Sicherheitselements sowie Wertdokument mit einem solchen Sicherheitselement
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CN101754862B (zh) 2013-03-27
DE102007036622A1 (de) 2009-01-08
DE102007036623A1 (de) 2009-01-08
EP2164708B1 (fr) 2011-08-17
WO2009003587A1 (fr) 2009-01-08
RU2464177C2 (ru) 2012-10-20
RU2010102122A (ru) 2011-08-10
US20100164217A1 (en) 2010-07-01
PL2164707T3 (pl) 2012-07-31
ZA201000737B (en) 2010-10-27
ATE542678T1 (de) 2012-02-15
ATE520537T1 (de) 2011-09-15
CN101754862A (zh) 2010-06-23
WO2009003588A1 (fr) 2009-01-08
US8573650B2 (en) 2013-11-05
EP2164708A1 (fr) 2010-03-24
EP2164707A1 (fr) 2010-03-24

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