EP2155502B1 - Datenträger mit sicherheitskennzeichnung - Google Patents

Datenträger mit sicherheitskennzeichnung Download PDF

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Publication number
EP2155502B1
EP2155502B1 EP08758891A EP08758891A EP2155502B1 EP 2155502 B1 EP2155502 B1 EP 2155502B1 EP 08758891 A EP08758891 A EP 08758891A EP 08758891 A EP08758891 A EP 08758891A EP 2155502 B1 EP2155502 B1 EP 2155502B1
Authority
EP
European Patent Office
Prior art keywords
layer
security element
data carrier
substrate
marking
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
EP08758891A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2155502A1 (de
Inventor
Peer-Alexander Komarek
Martin ZÖLLER
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=39777314&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2155502(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Giesecke and Devrient GmbH filed Critical Giesecke and Devrient GmbH
Publication of EP2155502A1 publication Critical patent/EP2155502A1/de
Application granted granted Critical
Publication of EP2155502B1 publication Critical patent/EP2155502B1/de
Revoked legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
    • B42D25/378—Special inks
    • B42D25/387—Special inks absorbing or reflecting ultraviolet light
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/328—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
    • B42D25/405—Marking
    • 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
    • B42D2033/10—
    • B42D2033/22—

Definitions

  • the invention relates to a multi-layer data carrier, in particular an identity card or the like, which carries a security element that is difficult to falsify, which can be detected by simple means.
  • a generic data carrier which is based on a transparent film, which are formed to a viewing front side in this order: a printing applied fluorescent printing layer, a first foil-shaped metallic layer, a foil-shaped transparent intermediate layer and a second foil-shaped metallic layer with another color.
  • the two metallic layers have recesses which are introduced by means of a laser and form a marking which is present in register in both metallic layers.
  • the marking may in particular be a portrait. Due to the different basic colors of the two metal layers, the marking appears differently when viewing the data carrier from the front side than when viewing from the rear side. Looking at the data carrier from the front and simultaneously illuminating the back with UV radiation, the recesses also appear as fluorescent spots.
  • a transparent base film with printed fluorescent layer it is also proposed instead of a transparent base film with printed fluorescent layer to use a doped with fluorescent pigments central carrier film, on both sides of each of a two vapor-deposited metallic and an intermediate transparent layer layer sequence is applied.
  • a doped with fluorescent pigments central carrier film on both sides of each of a two vapor-deposited metallic and an intermediate transparent layer layer sequence is applied.
  • recesses are in turn made by means of a laser, which form a register-accurate marking in all four layers.
  • the known solution provides a hard-to-imitate authenticity feature by allowing the naked eye to examine the layer structure of a data carrier - namely, the presence of at least two spaced, marked layers - and the quality of the marking - based on their registration accuracy.
  • the known solution requires, however, that the two sides of the disk are formed coordinated with each other and thus limits the free configurability of each surface of the disk. The surface space is lost accordingly for the application of other security or characterizing feature.
  • a security element which has a metal layer arranged between two translucent cover layers, by means of a laser markings in the form of patterns, letters, numbers and / or images.
  • the markings in the metal layer show a watermark effect, in which they appear in negative light when viewed in transmitted light in positive and when viewed in incident light.
  • the solution assumes that the security element can be viewed from two sides.
  • the optically variable element may be a hologram.
  • the arrangement formed of the optically variable element and the base material is provided with a recess pattern which lies in one part in the optically variable element and another part in the base material.
  • the recess grid may be in the form of holes penetrating the entire assembly or in the form of blind holes forming the optic complete variable element and partially penetrate the base material. It is subdivided into a background grid barely visible to the naked eye as well as into a distinctive grid that can be seen with the naked eye.
  • the object of the invention is to provide a disk with a security element that is difficult to imitate and at the same time affects the design of the disk as little as possible.
  • the object is achieved by a data carrier with the features of claim 1 and by a method having the features of claim 10.
  • the data carrier according to the invention has the advantage that it is in his Structure of the security element is hardly affected.
  • the back can be designed freely and requires the security element no particular layer sequence.
  • An inventive, equipped with a security element disk is very forgery-proof, because the generation of the security element on a disk requires a sound mastery of materials and work processes and therefore by potential forgers without sufficient knowledge is not feasible.
  • testing of a data carrier according to the invention on the basis of the authenticity feature realized by the security element can also be carried out by laymen with simple means and is reliable.
  • the production of the data carrier according to the invention can be carried out with known systems and does not limit the configurability of the data carrier. Therefore, a data carrier according to the invention can easily carry other security elements based on other mechanisms.
  • the security element generates a visually perceptible refraction effect;
  • it is designed as a hologram or kinegrafisches element.
  • the data carrier according to the invention advantageously allows the introduction of personalization information into the security element.
  • the identification introduced into the security element is preferably a portrait of the person.
  • another marking structure derived from personal data of a volume owner can also be generated.
  • the personalization can then advantageously be done individually on each disk.
  • the production of data carriers according to the invention also take place within the scope of a serial production, in which, for example, serial numbers are generated as identification.
  • the preparation of the data carrier according to the invention is advantageously carried out by applying a fluorescent layer on a substrate film, applied thereto a security element and in this by means of a laser marking is introduced.
  • the fluorescent layer is applied by printing technology and completely overlaid by the security element.
  • Fig. 1 illustrates in an exploded view cross-sectional view of the layer sequence of a data carrier according to the invention 100 in the region of a security element designed according to the invention. Heights and relative thickness ratios of the illustrated layers to each other are not to scale.
  • a fluorescent layer 20 on which a security element 30 is formed, which has an effect causing a structure 36.
  • a cover layer 40 applied.
  • the cover layer 40 is shown in an imaginary position prior to joining the layers 10, 20, 40 into a finished data carrier 100.
  • the upper side 41 of the cover layer 40 forms a planar surface.
  • the data carrier 100 forms in particular a card, credit card, bank card, cash card or authorization card, a chip card or a personalization data page for incorporation in a passbook.
  • the data carrier 100 can also be a transfer element arranged on a carrier layer for application to an identity card or another object;
  • the data carrier 100 is preferably designed only to the viewing side, while on the opposite side, for example, carries an adhesive strip.
  • the substrate 10 is formed as desired opaque or transparent and has a thickness of, for example, 100 microns to 500 microns. It is expediently made of a plastic such as PVC, polyester, ABS or polycarbonate and is preferably in film form for processing.
  • the substrate 10 may consist internally of a plurality of layers and, in particular to the surface designated here as the rear side 11, carry a layer sequence which is adapted to the intended use and deviates from the top side.
  • a layer sequence constructed analogously to the upper-side layer sequence can also be provided for the rear side 11, which layer contains, for example, a further security element 30 in conjunction with an associated further fluorescent layer and a cover layer.
  • the substrate 10 can also consist of paper, a ceramic or a glass material.
  • the fluorescent layer 20 is preferably applied to the substrate 10 by printing technology. It is transparent in daylight or white artificial light and covers a matched to the size of the security element 30 part of the surface 12 of the substrate 10. As a rule, covered by the fluorescent layer 20 surface is smaller than the base of the security element 30 and is completely covered by this , Basically, it is also, as in Fig.1 indicated with the projecting on the left side under the security element 30 region 21, possible to make the fluorescent layer 20 in terms of area larger than the security element 30. This is expedient if the fluorescent layer 20 further supports - not shown - trained on the disk 100 security features. Suitable materials for the fluorescent layer 20 are all common fluorine inks, which are compatible with the - described later - used laser technology.
  • a film can be used to produce the fluorescent layer 20, which fluoresces at least in the area of the security element 30.
  • the fluorescent layer 20 may also be dispensed with and the security element 30 applied directly to the substrate 10.
  • the material for the layer 20 it is also possible to use a material which is luminescent in some other way, for example a phosphorescent or in some other way, for example by temperature, instead of a fluorescent one.
  • a material which is luminescent in some other way, for example a phosphorescent or in some other way, for example by temperature, instead of a fluorescent one.
  • any type of material that can be lit from outside at least under certain environmental conditions by non-destructive physical excitation is considered.
  • the security element 30 typically has, as in Fig.1 indicated, a multilayer structure, which consists in principle of three layers, wherein on a transparent, laser-transparent base layer 31 is a metallized, laser-absorbing layer and on this a transparent, laser-transparent termination layer 33.
  • the final layer 33 may be a film or a paint; it can also be omitted.
  • the security element 30 has a thickness of 50 microns to 250 microns and is preferably larger in area than the fluorescent layer 20, so that it completely covers them.
  • the structure 36 includes a diffraction pattern in the form of a hologram or a kinegraphic element, which provides an observer in a conventional manner in daylight or in white artificial light an angle-dependent image impression.
  • the structure 36 may exist in other effects based on reflection or traversing.
  • the cover layer 40 is made transparent, at least in the region of the security element 30, so that it can be seen from the viewing side through the cover layer 40. Above all, it serves to protect the security element 30 and possibly also other security elements present on the data carrier 100 and is basically optional, ie the cover layer 40 can also be dispensed with.
  • the cover layer 40 is suitably made of a suitable plastic, such as PVC, ABS, polyester, polycarbonate or mixtures thereof, as it is known from the production of smart cards forth. In addition to plastic come for the execution of the cover layer 40 of course, other transparent materials into consideration, such as glass materials.
  • the tag 60 may consist in the reproduction of a photograph, alphanumeric characters or any graphic pattern. Especially when using the data carrier 100 as a document for identifying a person, the identification 60 is expediently a portrait of the person.
  • the raster image forming the marking 60 is expediently located completely within the surface of the security element 30, so that an edge always remains between the outer recesses and the lateral boundary 37 of the security element 30, at which the layers 31, 32 and 33 are intimately connected to one another are. The edge stabilizes the security element 30.
  • the size of the recesses 50 is dimensioned in a particularly advantageous embodiment so that their cross-sectional openings D when viewing the disk 100 with the naked eye are not or at most difficult to see.
  • the cross-sectional openings D largest diameters of up to 200 microns.
  • the recesses 50 are further incorporated only in such a density that they do not affect the appearance of the metallized layer 32 or the diffraction structure 36 formed on its surface 35 when viewed with the naked eye.
  • the design of the marker 60 from individually unrecognizable to the naked eye recesses 50 in conjunction with a distribution of the recesses 50 so that clusters are not recognizable causes the label 60 in total when looking at the data carrier 100 from the viewing side with the naked eye in daylight or normal artificial light is not recognizable. Rather, with such a consideration only the effect of the optical effect generated by the security element 30 recognizable, such as the diffraction effect of a hologram.
  • the security element 30 with the label 60 As in Fig. 2 indicated, applied from the viewing side with UV light, this stimulates the located below the security element 30 fluorescent layer 20 at. The layer 20 thereby becomes a backlight for the metallized layer 32 with respect to the viewing side. As a result, the recesses 50 and thus the marking 60 produced by them are now perceptible when viewed from the viewing side. If the label is 60, as in Fig. 2 indicated, a portrait, this is therefore visible when illuminating the data carrier 100 with UV light within the security element 30. Visibility in UV light forms a very tamper-proof authenticity feature.
  • the authenticity feature arises from the possibility of detecting the presence of the marking 60 at least at a suitable angle and suitable incidence of light; Angle and light can be found by experiments.
  • the recesses 50 must be dimensioned sufficiently large in this case.
  • the fluorescent layer 20 is first applied to a substrate 10 using a conventional printing technique and using a commercially available, suitable fluorine color. About this is then applied by means of a common adhesive method, the security element 30;
  • the security element 30 is expediently provided as a finished semifinished product, which has a metallized one Layer 32 contains, on the surface 35 is already an optical effect generating structure 36 is formed.
  • a cover layer 40 laid.
  • the entire layer arrangement consisting of the layers 10, 20, 30, 40 is then connected to a data carrier 100 by means of a conventional lamination process.
  • the individual application of base layer 31, metallized layer 32 and, if provided, the sealing layer 33 can also be provided.
  • the metallized layer 32 may already contain an optical effect generating structure 36; otherwise, the structure 36 is conveniently applied after joining the layers 31, 32, 33 of the security element 30 in the metallized layer 32.
  • the bonding of the layers 31, 32, 33 together with the cover layer 40 and the substrate 10 is expediently carried out in a conventional laminating method.
  • the marking 60 is introduced in a subsequent processing step.
  • a halftone pattern is first generated using a raster technique from an original of a marking to be introduced.
  • different brightness levels of the halftone pattern are generated by a different halftone dot density, a different halftone dot size and / or by a different halftone dot blackening.
  • the quality of the raster image thus generated initially plays no role.
  • the raster image may be a photograph and have a high resolution of 300 dpi (dots per inch) or more.
  • the output raster image is preferably inverted so that dark parts of the image are bright and bright parts of the picture become dark.
  • the inverted Ratser image software is converted into a raster image with small dimensions, smaller resolution and a certain small number of gray values.
  • a gray value image with dimensions of 10 ⁇ 12 mm is generated, which has between two - corresponding to a black and white image - and at most 256 gray levels.
  • a value between 70 and 120 dpi has proven to be expedient.
  • the reduced raster image present after this is transferred into the metallized layer 32 of the security element 30 on the data carrier 100 using a conventional laser.
  • the adjustment of the laser parameters of the laser such as beam diameter and pulse energy, and the materials used for the generation of the fluorescent layer 20, the security element 30 and the cover layer 40 are coordinated so that the struck areas, ie the recesses 50, in the metallized Layer 32 are completely eliminated, but at the same time in any of the remaining layers 10, 20, 40 a permanent material change is formed.
  • the laser parameters are chosen so that the base layer 31 under the recesses 50 is not removed, in order to avoid that the security element 30 does not detach from the substrate 10 or from the fluorescent layer 20.
  • a lamp-pumped Nd: YAG solid-state laser with a pulse frequency of 50 kHz and very low pulse energy in the image mode was used to introduce the marking 60; the white energy was kept close to the value 0.
  • Nd glass laser or longer wavelength CO 2 laser.
  • the invention permits, in addition to those already mentioned Set of further refinements.
  • a material to be illuminated a material can also be used for the layer 20 which shines permanently without excitation or at least appears very bright, for example a very luminous color or a highly reflective color in comparison to the structures in the immediate vicinity.
  • the perception of the marking is usually limited to a viewing view in a narrow range around an angle of 90 ° around.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Credit Cards Or The Like (AREA)
  • Printing Methods (AREA)
  • Luminescent Compositions (AREA)
  • Electroluminescent Light Sources (AREA)
EP08758891A 2007-06-01 2008-05-30 Datenträger mit sicherheitskennzeichnung Revoked EP2155502B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007025866A DE102007025866B4 (de) 2007-06-01 2007-06-01 Datenträger mit Sicherheitskennzeichnung
PCT/EP2008/004320 WO2008145381A1 (de) 2007-06-01 2008-05-30 Datenträger mit sicherheitskennzeichnung

Publications (2)

Publication Number Publication Date
EP2155502A1 EP2155502A1 (de) 2010-02-24
EP2155502B1 true EP2155502B1 (de) 2012-08-08

Family

ID=39777314

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08758891A Revoked EP2155502B1 (de) 2007-06-01 2008-05-30 Datenträger mit sicherheitskennzeichnung

Country Status (9)

Country Link
US (1) US8602313B2 (ru)
EP (1) EP2155502B1 (ru)
CN (1) CN101678699B (ru)
BR (1) BRPI0811912A2 (ru)
CA (1) CA2687783C (ru)
DE (1) DE102007025866B4 (ru)
MX (1) MX2009012996A (ru)
RU (1) RU2491174C2 (ru)
WO (1) WO2008145381A1 (ru)

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Publication number Publication date
RU2491174C2 (ru) 2013-08-27
US8602313B2 (en) 2013-12-10
RU2009148892A (ru) 2011-08-10
CA2687783A1 (en) 2008-12-04
CA2687783C (en) 2016-01-19
EP2155502A1 (de) 2010-02-24
US20100270380A1 (en) 2010-10-28
WO2008145381A1 (de) 2008-12-04
DE102007025866A1 (de) 2008-12-04
MX2009012996A (es) 2010-01-15
BRPI0811912A2 (pt) 2019-09-24
CN101678699B (zh) 2012-05-09
CN101678699A (zh) 2010-03-24
DE102007025866B4 (de) 2012-08-30

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