EP1185422A1 - Caracteristique de securite variable optiquement - Google Patents

Caracteristique de securite variable optiquement

Info

Publication number
EP1185422A1
EP1185422A1 EP00952853A EP00952853A EP1185422A1 EP 1185422 A1 EP1185422 A1 EP 1185422A1 EP 00952853 A EP00952853 A EP 00952853A EP 00952853 A EP00952853 A EP 00952853A EP 1185422 A1 EP1185422 A1 EP 1185422A1
Authority
EP
European Patent Office
Prior art keywords
optically variable
pedt
pss
variable security
security feature
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.)
Granted
Application number
EP00952853A
Other languages
German (de)
English (en)
Other versions
EP1185422B1 (fr
Inventor
Frank Puttkammer
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.)
WHD Elektronische Prueftechnik GmbH
Original Assignee
WHD Elektronische Prueftechnik 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=7911800&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1185422(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by WHD Elektronische Prueftechnik GmbH filed Critical WHD Elektronische Prueftechnik GmbH
Publication of EP1185422A1 publication Critical patent/EP1185422A1/fr
Application granted granted Critical
Publication of EP1185422B1 publication Critical patent/EP1185422B1/fr
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

Links

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
    • 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
    • B41M3/148—Transitory images, i.e. images only visible from certain viewing angles
    • 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
    • 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

Definitions

  • the invention relates to an optically variable security feature for documents, securities, banknotes, packaging and goods.
  • optically variable security features are holograms, whose human-visually recognizable information is subject to change when viewed from different angles. This effect offered good copy protection, as the angle-dependent changes could not be imitated by a copier.
  • Such holograms usually consist of a carrier film, a layer of curable lacquer into which diffractive structures are embossed, and a reflection and an additional protective layer.
  • the reflection layer is embodied as a highly brilliant metallization which has been evaporated in a high vacuum and which, in order to test the authenticity, can additionally contain a functional design in the form of demetallized points which can be recognized by human vision or not recognized by human vision. These demetallized points can take the form of characters, letters or geometric figures.
  • DE 40 30 493 shows that an optically variable element is applied to a multi-layer data carrier, in which additional information, such as a pattern for a functional design, which is subsequently introduced and can be recognized by human vision, is present and is superimposed on the optical effect.
  • additional information such as a pattern for a functional design, which is subsequently introduced and can be recognized by human vision
  • DE 39 32 505 describes data carriers with diffraction structures, the standard information of which can be changed in a human-visually recognizable manner by additional measures, for example by removing the metal layer.
  • DE 44 19 089 and DE 44 19 173 have disclosed magnetizable luster pigments and luster pigment mixtures which are suitable for producing three-dimensional optical effects through the action of magnetic fields during or after their application in the still liquid application medium. They are based on multi-coated, platelet-shaped, non-ferromagnetic metallic substrates and are used in paints and printing inks. Among other things, they should be able to replace costly holograms, but the color change that can be achieved is still too low. Likewise, DE 195 15 988 describes that gloss pigments are used for coloring paints, inks and printing inks.
  • DE 33 08 31 also shows that in the case of holograms, the metallic foil usually used as a reflection layer can also be produced by vacuum evaporation or by applying thin aluminum layers. Another possibility is the described casting process. When trying to remove the hologram from the security, the thin metal layers collapse and the hologram is subject to destruction.
  • suitable polythiophenes for example 3,4-polyethylenedioxythiophene
  • Another option for reading out the polythiophene markings is based on their electrical conductivity. With suitable electrode arrangements, the differences in surface resistance between the non-conductive support and the conductive markings can be registered.
  • EP 753 623 to produce a security sheet which is used as.
  • Counterfeit protection contains an electrically conductive element.
  • the conductive element consists of a polythiophene polymer. Inks containing metal pigments are similarly called.
  • DE 38 43 075 describes an arrangement in a security document with a security thread that contains a metallic coating.
  • a layer with electrically conductive pigments or a layer made of an electrically conductive plastic due to its molecular structure is provided in the immediate vicinity of this coating. This layer serves to bridge any interruptions in the metallic coating of the security thread.
  • the object of the invention is to provide an optically variable security feature with concealed, detectable features in order to increase counterfeit security, and despite their introduction, the manufacture should be able to be designed sufficiently quickly and inexpensively.
  • the solution according to the invention affords the advantage of providing optically variable security features with concealed, detectable features that are not recognizable by human vision and can either be depicted pictorially or can be functionally supplemented by bridging interruptions to form a testable whole.
  • optically variable security features with concealed, detectable features that are not recognizable by human vision and can either be depicted pictorially or can be functionally supplemented by bridging interruptions to form a testable whole.
  • bridging interruptions to form a testable whole.
  • 1 to 3 is a schematic representation of the different structure of an optically variable security feature, for example a hologram, consisting of a carrier film 1, a layer of PEDT / PSS (polyethylene dioxythiophene polystyrene sulfonate) 2, a curable lacquer layer 3, preferably as a carrier of diffractive structures, a reflection layer 4, a protective layer 7 and an adhesive layer 5.
  • a carrier film 1 to 3 consisting of a carrier film 1, a layer of PEDT / PSS (polyethylene dioxythiophene polystyrene sulfonate) 2, a curable lacquer layer 3, preferably as a carrier of diffractive structures, a reflection layer 4, a protective layer 7 and an adhesive layer 5.
  • PEDT / PSS polyethylene dioxythiophene polystyrene sulfonate
  • the reflection layer 4 contains a functional design 6 in the form of interruptions.
  • optically variable security feature The function of the optically variable security feature according to the invention is as follows: With the knowledge that the reflection layer 4 can contain a functional design 6 in the form of a microscript or other interruptions that are no longer recognizable by human vision, it is also possible for counterfeiters in a short time Introduce such a functional design 6 optically variable security feature. To increase the security against forgery, an electrically conductive feature substance in the form of a layer of PEDT / PSS 2 is applied to the carrier film 1 as a transparent, electrically conductive polymer. This layer from the PEDT / PSS 2 cannot be recognized by human vision and can only be detected by demonstrating its electrical conductivity.
  • the layer of the PEDT / PSS 2 can form a functional design and is applied to the carrier film 1 as a coherent surface or as a surface divided by a line-like interruption. In the first case you can see the conductivity of the surface, in the second you check the electrical interruption of the otherwise electrically conductive surface.
  • the layer from the PEDT / PSS 2 can, however, also be applied to the carrier film 1 as a line or as a plurality of straight or curved lines running side by side. In such a case, the pattern of the lines can be recognized with test equipment and evaluated if necessary. Similar to the lines, the layer from the PEDT / PSS 2 can also take the form of points.
  • the conductivity of the layer PEDT / PSS 2 is adjustable either by the type of application or by the type of its special formulation.
  • the reflection layer 4 contains the functional design 6 in the form of interruptions. These interruptions of the reflection layer 4, which are no longer visible in human vision, preferably follow the pictorial design of the diffractive structures of the hologram. This makes them more difficult to find.
  • the functional design in the PEDT / PSS 2 and the functional design 6 of the reflection layer 4 are advantageously arranged in adjacent planes. In this case, parts of the functional design in the PEDT / PSS 2 and the functional design 6 of the reflection layer 4 interact in such a way that interruptions in the reflection layer 4 are bridged. In this way, despite the interruptions in the reflection layer 4, a coding that can be evaluated by machine is obtained. If the PEDT / PSS 2 and the reflection layer 4 are arranged in mutually separate planes, their design is advantageously designed such that they only produce a complete image together, which can be recognized with appropriate test equipment.
  • the PEDT / PSS 2 shows significantly better properties than other organic conductors, such as the previously known polythiophenes as well as polypyrrole or polyaniline. It shows a higher transmission in visible light. It results in transparent, colorless to slightly blue colored coatings. Depending on the manufacturing conditions, minimal surface resistances can be achieved. It has better hydrolysis resistance, good light and temperature resistance, a high absorption in the range of 900 - 2000 nm and no absorption maximum in the range of visible light up to 800 nm. According to the invention, the PEDT / PSS 2 is applied in the form of an aqueous dispersion. This form of application fits into the technology of manufacturing security features such that there are no interruptions in the ongoing production process.
  • the PEDT / PSS 2 is applied in its monomeric precursor to the intended positions of the optically variable security feature as a 3,4-ethylenedioxythiophene (EDT) and then with an oxidizing agent, namely iron III Toulol sulfonate solution in n-butanol, polymerized to PEDT / PSS 2.
  • EDT 3,4-ethylenedioxythiophene
  • an oxidizing agent namely iron III Toulol sulfonate solution in n-butanol

Landscapes

  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Business, Economics & Management (AREA)
  • Credit Cards Or The Like (AREA)
  • Wrappers (AREA)
  • Glass Compositions (AREA)
  • Holo Graphy (AREA)
  • Air Bags (AREA)
  • Centrifugal Separators (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Laminated Bodies (AREA)
  • Prostheses (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Materials For Medical Uses (AREA)

Abstract

L'invention concerne une caractéristique de sécurité variable optiquement pour documents, titres, billets de banque, emballages et marchandises. L'invention vise à pourvoir une caractéristique de sécurité variable optiquement de caractéristiques détectables masquées afin d'augmenter la sécurité contre la falsification. A cet effet, on utilise une caractéristique de sécurité variable optiquement ayant des structures à effet de diffraction et comportant un polymère électroconducteur et au moins un film support (1), une couche de protection (7), une couche de peinture (3) et une couche réflectrice (4), le polymère électroconducteur étant un polyéthylène-dioxythio-polystyrène-sulfonate (PEDT/PSS) disposé sur différentes couches.
EP00952853A 1999-06-15 2000-06-14 Caracteristique de securite variable optiquement Revoked EP1185422B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19928060 1999-06-15
DE19928060A DE19928060A1 (de) 1999-06-15 1999-06-15 Optisch variables Sicherheitsmerkmal und Verfahren zu seiner Herstellung
PCT/DE2000/001908 WO2000076778A1 (fr) 1999-06-15 2000-06-14 Caracteristique de securite variable optiquement

Publications (2)

Publication Number Publication Date
EP1185422A1 true EP1185422A1 (fr) 2002-03-13
EP1185422B1 EP1185422B1 (fr) 2003-05-28

Family

ID=7911800

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00952853A Revoked EP1185422B1 (fr) 1999-06-15 2000-06-14 Caracteristique de securite variable optiquement

Country Status (22)

Country Link
US (1) US7301682B1 (fr)
EP (1) EP1185422B1 (fr)
JP (1) JP3913549B2 (fr)
KR (1) KR100666631B1 (fr)
CN (1) CN1355745A (fr)
AT (1) ATE241476T1 (fr)
BG (1) BG64546B1 (fr)
BR (1) BR0012312A (fr)
CA (1) CA2374435A1 (fr)
CZ (1) CZ298221B6 (fr)
DE (2) DE19928060A1 (fr)
DK (1) DK1185422T3 (fr)
ES (1) ES2199846T3 (fr)
HU (1) HUP0201521A2 (fr)
MX (1) MXPA01011689A (fr)
NO (1) NO20016015D0 (fr)
PL (1) PL193839B1 (fr)
PT (1) PT1185422E (fr)
SK (1) SK285524B6 (fr)
TR (1) TR200103242T2 (fr)
UA (1) UA69464C2 (fr)
WO (1) WO2000076778A1 (fr)

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DE10033651A1 (de) * 2000-07-11 2002-02-14 Messer Griesheim Gmbh Informationssystem zur Kennzeichnung von Gegenständen
DE10111847A1 (de) * 2001-03-01 2002-09-12 Whd Elektron Prueftech Gmbh Sicherheitsmerkmale
DE10111851B4 (de) * 2001-03-01 2007-10-25 WHD elektronische Prüftechnik GmbH Sicherheitsmerkmale
DE10111850C2 (de) * 2001-03-01 2003-07-17 Whd Elektron Prueftech Gmbh Sicherheitseinrichtung
DE10111848A1 (de) * 2001-03-01 2002-09-12 Whd Elektron Prueftech Gmbh Sicherheitsmerkmale
DE10149265A1 (de) * 2001-10-05 2003-04-17 Giesecke & Devrient Gmbh Gegenstand mit Sicherheitsmarkierung
JP2005537157A (ja) * 2002-08-28 2005-12-08 クレイン アンド カンパニー インコーポレーテッド 耐久性のあるセキュリティ装置およびかかる装置を使用したセキュリティ物品
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AT500289A1 (de) * 2003-12-29 2005-11-15 Hueck Folien Gmbh Substrate mit elektrisch leitfähigen schichten für technische anwendungen
WO2006042568A1 (fr) 2004-10-20 2006-04-27 Hueck Folien Ges.M.B.H Substrats comportant des couches electroconductrices
DE102005031448A1 (de) 2005-07-04 2007-01-11 Polyic Gmbh & Co. Kg Aktivierbare optische Schicht
US8795730B2 (en) 2006-01-31 2014-08-05 David John Vachon Compositions and methods for promoting the healing of tissue of multicellular organisms
DE102008026216B4 (de) 2008-05-30 2010-07-29 Polyic Gmbh & Co. Kg Elektronische Schaltung
US8253536B2 (en) * 2009-04-22 2012-08-28 Simon Fraser University Security document with electroactive polymer power source and nano-optical display
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DE102009033221A1 (de) 2009-07-14 2011-01-27 Human Bios Gmbh Sicherheitselement zur Kennzeichnung oder Identifikation von Gegenständen und Lebewesen
AU2011101684B4 (en) * 2011-12-22 2012-08-16 Innovia Security Pty Ltd Optical Security Device with Nanoparticle Ink
CN103113780B (zh) * 2013-02-05 2014-10-01 陕西科技大学 一种含三氧化二铝的双波长吸光水性防伪油墨添加剂的制备工艺
CN103113783B (zh) * 2013-02-05 2014-10-01 陕西科技大学 一种含二氧化硅的双波长吸光水性防伪油墨添加剂的制备工艺
CN103113779B (zh) * 2013-02-05 2014-10-01 陕西科技大学 一种含三氧化二铁的双波长吸光水性防伪油墨添加剂的制备工艺
CN103113781B (zh) * 2013-02-05 2014-10-01 陕西科技大学 一种含氧化亚铜的双波长吸光水性防伪油墨添加剂的制备工艺
CN103113782B (zh) * 2013-02-05 2014-10-01 陕西科技大学 一种含二氧化钛的双波长吸光水性防伪油墨添加剂的制备工艺
CN110774787A (zh) * 2019-09-24 2020-02-11 山东泰宝防伪技术产品有限公司 特殊防伪码口花纸及其制备方法

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Also Published As

Publication number Publication date
TR200103242T2 (tr) 2002-03-21
DK1185422T3 (da) 2003-09-15
NO20016015L (no) 2001-12-10
NO20016015D0 (no) 2001-12-10
KR20020010627A (ko) 2002-02-04
BR0012312A (pt) 2002-05-14
SK17772001A3 (sk) 2002-07-02
BG64546B1 (bg) 2005-07-29
PL351651A1 (en) 2003-05-19
BG106133A (en) 2002-06-28
CZ20014232A3 (cs) 2002-03-13
ATE241476T1 (de) 2003-06-15
DE50002371D1 (de) 2003-07-03
KR100666631B1 (ko) 2007-01-10
MXPA01011689A (es) 2002-07-30
PT1185422E (pt) 2003-10-31
CA2374435A1 (fr) 2000-12-21
DE19928060A1 (de) 2000-12-21
CN1355745A (zh) 2002-06-26
US7301682B1 (en) 2007-11-27
WO2000076778A1 (fr) 2000-12-21
PL193839B1 (pl) 2007-03-30
EP1185422B1 (fr) 2003-05-28
JP2003502688A (ja) 2003-01-21
CZ298221B6 (cs) 2007-07-25
UA69464C2 (uk) 2004-09-15
JP3913549B2 (ja) 2007-05-09
ES2199846T3 (es) 2004-03-01
SK285524B6 (sk) 2007-03-01
HUP0201521A2 (en) 2002-08-28

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