EP0748896B1 - Sicherheitsdokument und Verfahren zu seiner Herstellung - Google Patents

Sicherheitsdokument und Verfahren zu seiner Herstellung Download PDF

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Publication number
EP0748896B1
EP0748896B1 EP96109215A EP96109215A EP0748896B1 EP 0748896 B1 EP0748896 B1 EP 0748896B1 EP 96109215 A EP96109215 A EP 96109215A EP 96109215 A EP96109215 A EP 96109215A EP 0748896 B1 EP0748896 B1 EP 0748896B1
Authority
EP
European Patent Office
Prior art keywords
security
magnetic
layer
security document
coercivity
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
EP96109215A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0748896A1 (de
Inventor
Wittich Dr. Kaule
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+Devrient GmbH
Original Assignee
Giesecke+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
Application filed by Giesecke+Devrient GmbH filed Critical Giesecke+Devrient GmbH
Priority to SI9630513T priority Critical patent/SI0748896T1/xx
Publication of EP0748896A1 publication Critical patent/EP0748896A1/de
Application granted granted Critical
Publication of EP0748896B1 publication Critical patent/EP0748896B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
    • B42D25/369—Magnetised or magnetisable 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
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/355—Security threads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
    • B42D25/373—Metallic materials
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/40—Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
    • D21H21/44—Latent security elements, i.e. detectable or becoming apparent only by use of special verification or tampering devices or methods
    • D21H21/48—Elements suited for physical verification, e.g. by irradiation
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F7/00—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
    • G07F7/08—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means
    • G07F7/086—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means by passive credit-cards adapted therefor, e.g. constructive particularities to avoid counterfeiting, e.g. by inclusion of a physical or chemical security-layer
    • B42D2033/10—
    • B42D2033/16—
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
    • G07D7/04—Testing magnetic properties of the materials thereof, e.g. by detection of magnetic imprint
    • 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
    • Y10S428/90—Magnetic feature
    • 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
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12465—All metal or with adjacent metals having magnetic properties, or preformed fiber orientation coordinate with shape

Definitions

  • the invention relates to a security document, in particular Banknote, ID card or the like, with a security element, which is at least partially is provided with a magnetic material, and a Method of manufacturing the security element. Furthermore the invention relates to the security element itself, and a Method of manufacturing the security element.
  • Security documents with magnetic materials that arranged on or in the document have long been known.
  • the magnetic materials can for example applied in the form of strips or on separate carrier materials can be arranged, which in turn be firmly attached to the document.
  • Such a security document is for example known from DE-A-16 96 245.
  • a suitable carrier material such as. Silk, cotton or plastic with provided with a magnetic coating mixture and then is embedded in a security document.
  • the security document can be based on the Security element, especially one introduced Security thread, uniquely identified by machine.
  • DE-A-41 01 301 is also a security document known in which a magnetic security element is introduced, in which the magnetic Coating has soft magnetic pigments.
  • This light gray to silvery pigments are a suitable Varnish mixed and together with this on a carrier material spread out and then in the security document embedded so that the brought in magnetic security element hardly visible in incident light occurs.
  • the examination of security documents, the magnetic Can have security elements, e.g. in DE-C- 27 54 267 described, among other things carried out that the coercivity of the element is measured becomes.
  • the object of the present invention is therefore therein a security document with a magnetic security element and a method for Preparation of this security document and a method of manufacture to propose the security element, the magnetic properties like that are trained to be difficult to imitate.
  • the basic idea of the invention is as a security element to use a carrier that is compatible with a defined, low coercive magnetic layer was coated. Because of the low coercivity and the resulting rapid demagnetization under the influence of weak fields, allow such magnetic ones Layers not permanent data storage, however, they possess compared to the conventional ones medium-coercive magnetic coatings have the advantage that they are unusual in trade. Because the coercivity of a material independent of other magnetic Values, e.g. the remanence can, it is possible to use the magnetic To bring materials into the document, the magnetic materials only in terms of coercivity differ from those previously used.
  • iron is used as magnetic material used on a support is evaporated.
  • the desired coercivity of the applied Iron layer can be independent of their Set the thickness using the manufacturing parameters. Becomes the layer, for example, in several separate evaporation applied steps, so a lower Coercivity achieved than with continuous evaporation the entire layer of the same total thickness. Furthermore, the fewer impurities in the material are included, the lower the coercivity.
  • the manufacturing process can alternatively be carried out so that for different total layer thicknesses same coercivity values be achieved.
  • Fig. 1 shows a banknote 1 with an embedded security thread according to the invention.
  • the thread is complete embedded in the paper, what is through the dashed line is indicated.
  • the security element can be placed in the value document also in the form of planchettes or mottled fibers introduce certain parts of the security document.
  • the security thread according to the invention is in cross section shown along the section line A - B in Fig. 2.
  • a carrier 3 which is usually made of a plastic material, a magnetizable Iron layer 4 applied, which has a coercivity 100 Oe.
  • the magnetizable layer 4 can. but also made of nickel or a magnetic alloy consist. The only condition is that the coercivity the layer between about 10 and about 250, preferred is between 20 and 150 Oe.
  • the thickness of the magnetizable The layer has essentially no influence on the Coercivity and can be achieved with the usual choice of process parameters set between 0.05 and 1 ⁇ m.
  • the values of which are preferably between more than 100 and 1000 nWb / m.
  • the magnetizable material for example iron
  • the layer thickness of the magnetizable Total layer is 0.1 ⁇ m.
  • the Coercivity by changing the process parameters change with the same layer thickness, whereby also the Remanence remains the same.
  • the magnetisable Layer with a layer thickness of 0.1 ⁇ m in one single pass vaporized, resulting in coercivity of 100 Oe and a remanence of 150 nWb / m.
  • the same coercivity of 100 Oe with higher remanence can be produced in that the layer thickness is increased to 0.2 ⁇ m and the evaporation again in done in a single operation because the change the layer thickness essentially affects the coercivity Not.
  • the remanence increases a value. of approx. 300 nWb / m. Let it this way so create specific layers that act as common Feature a uniform coercivity have different layer thicknesses while others magnetic properties, such as remanence, for every layer thickness are different.
  • the magnetic material can be, for example, by apply a resistance-heated evaporation of pure iron.
  • the layers can also be passed through anodic arc evaporation or electron beam evaporation produce. It is also possible to have a printable to use magnetic material that a has correspondingly low coercivity.
  • Leave information such as pictures, logos or lettering yourself into the security element by common procedures contribute. These can, for example are generated by the fact that the attachment of the magnetic Layer is prevented in certain areas or the magnetic layer removed after application is so that, for example, the thread shown in Fig. 3, which was provided with the lettering PL can be.
  • the characters 6 are here e.g. by locally removing the magnetizable iron layer generated with the help of a laser beam. Of course however, other methods can also be used with which the negative characters in the thread embedded, such as those described in WO-A-92/11142 Method.
  • a thin metal layer 5 become.
  • the use is also in this context of colored metal layers possible, which the The appearance of the thread continues to improve.
  • the additional metal layer for example made of aluminum exists before the characters 6 are introduced the magnetic layer 4 are applied so that when the characters are introduced, the metal layer 5 in this area is completely removed.
  • a metal layer 5 is applied to a carrier 3, on which in a further step the magnetizable layer applied with low coercivity becomes.
  • Layer 4 applied another metallic layer 7.
  • the use of two thin layers of metal always appears when the thread is in the paper a uniform appearance in reflected and transmitted light to show. This measure makes the magnetic Layer covered from both sides, and the characters introduced appear clearly on both sides as more transparent areas.
  • the security paper is inserted into a test device.
  • any magnetic Property can be determined, e.g. the remanence is measured. This should have a minimum value which is above the remanence values of printing inks, which usually used on the disk. Such Retentive values are preferably above 100 nWb / m. If this test is positive, the security element subjected to another test in which it is checked whether a specific coercivity value is measurable is. By comparing the measured coercivity value with a specific for this document the authenticity of the document can be verified.
  • Essential with the one used Procedure is the safe determination of the Coercivity value of the security element, where not even a comparison with any saved Values. In particular, this is always the case when it is already clear which coercivity value when measuring the authenticity of the document prove.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Credit Cards Or The Like (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
EP96109215A 1995-06-09 1996-06-07 Sicherheitsdokument und Verfahren zu seiner Herstellung Expired - Lifetime EP0748896B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI9630513T SI0748896T1 (en) 1995-06-09 1996-06-07 Security document and process for production thereof

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19521048 1995-06-09
DE19521048A DE19521048A1 (de) 1995-06-09 1995-06-09 Sicherheitsdokument und Verfahren zu seiner Herstellung

Publications (2)

Publication Number Publication Date
EP0748896A1 EP0748896A1 (de) 1996-12-18
EP0748896B1 true EP0748896B1 (de) 2002-09-11

Family

ID=7763999

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96109215A Expired - Lifetime EP0748896B1 (de) 1995-06-09 1996-06-07 Sicherheitsdokument und Verfahren zu seiner Herstellung

Country Status (7)

Country Link
US (1) US6146773A (pl)
EP (1) EP0748896B1 (pl)
DE (2) DE19521048A1 (pl)
ES (1) ES2180675T3 (pl)
HU (1) HU224506B1 (pl)
PL (1) PL185817B1 (pl)
SI (1) SI0748896T1 (pl)

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DE102004049999A1 (de) 2004-10-14 2006-04-20 Giesecke & Devrient Gmbh Sicherheitselement
CN1329587C (zh) * 2004-10-22 2007-08-01 中国印钞造币总公司 一种防伪纸及其制造方法
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DE102008013167A1 (de) * 2008-03-07 2009-09-10 Giesecke & Devrient Gmbh Sicherheitselement und Verfahren zu seiner Herstellung
EP2414176B1 (en) * 2009-04-01 2021-05-26 Fedrigoni S.P.A. Security element comprising magnetic areas of different coercivities and a method for its manufacture
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Also Published As

Publication number Publication date
SI0748896T1 (en) 2002-12-31
DE59609639D1 (de) 2002-10-17
HUP9601578A2 (en) 1997-01-28
PL185817B1 (pl) 2003-08-29
HUP9601578A3 (en) 1999-04-28
DE19521048A1 (de) 1996-12-12
PL314678A1 (en) 1996-12-23
US6146773A (en) 2000-11-14
ES2180675T3 (es) 2003-02-16
HU224506B1 (hu) 2005-10-28
EP0748896A1 (de) 1996-12-18
HU9601578D0 (en) 1996-07-29

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