EP2014479A1 - Safety elements with machine readable, visually imperceptible characteristics - Google Patents
Safety elements with machine readable, visually imperceptible characteristics Download PDFInfo
- Publication number
- EP2014479A1 EP2014479A1 EP07011853A EP07011853A EP2014479A1 EP 2014479 A1 EP2014479 A1 EP 2014479A1 EP 07011853 A EP07011853 A EP 07011853A EP 07011853 A EP07011853 A EP 07011853A EP 2014479 A1 EP2014479 A1 EP 2014479A1
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- EP
- European Patent Office
- Prior art keywords
- security
- packaging
- elements according
- carrier substrate
- ray absorbing
- 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.)
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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
Definitions
- the invention relates to security elements with machine-readable features that ensure increased security against counterfeiting.
- Security elements in the form of threads, strips, tapes, patches or other formats are used primarily in value documents, for example banknotes, identity papers and the like. Most of these security elements have combined features, such as optical features and / or conductive features and / or magnetic features.
- Object of the invention was to provide security elements that have visually unrecognizable machine-readable features and ensure increased security against counterfeiting.
- the invention therefore relates to security elements comprising a carrier substrate to which one or more functional security features are applied, characterized in that the carrier substrate has full-area or partial printing from an X-ray-absorbing coating which is covered by a cover layer.
- Another object of the invention is a film material consisting of a carrier substrate on which one or more functional security features are applied, characterized in that the carrier substrate has a full-area or partial printing from a X-ray absorbing coating, which is covered by a cover layer has.
- Carrier substrates are, for example, carrier films, preferably flexible transparent plastic films, for example of PI, PP, MOPP, PE, PPS, PEEK, PEK, PEI, PAEK, LCP, PEN, PBT, PET, PA, PC, COC, POM, ABS, PVC in question.
- the carrier films preferably have a thickness of 5 to 700 .mu.m, preferably 5 to 200 .mu.m, particularly preferably 5 to 50 .mu.m.
- metal foils for example Al, Cu, Sn, Ni, Fe or stainless steel foils having a thickness of 5-200 ⁇ m, preferably 10 to 80 ⁇ m, particularly preferably 20-50 ⁇ m, may also serve as the carrier substrate.
- the films can also be surface-treated, coated or laminated, for example, with plastics or painted.
- carrier substrates also paper or composites with paper, for example, composites with plastics with a basis weight of 20 - 500 g / m 2, preferably 40 - 2 are used 200 g / m.
- woven or nonwovens such as continuous fiber webs, staple fiber webs and the like, which may optionally be needled and / or calendered, can be used as the carrier substrates.
- fabrics or webs of plastics such as PP, PET, PA, PPS and the like, but it can also be woven or nonwovens made of natural, optionally treated fibers, such as viscose fibers are used.
- the nonwovens or fabrics used have a weight per unit area of about 20 g / m 2 to 500 g / m 2 . If necessary, the nonwovens or fabrics must be surface-treated.
- the carrier substrate is printed over the entire surface or partially with an ink which is heavily pigmented with heavy elements.
- the pigment content may be 25-85% by weight, preferably 50-85% by weight.
- Suitable pigments include TiO 2 , BaSO 4 , phthalocyanines, Cu porphyrins, Cr compounds, CdSO 4 or other heavy metal compounds.
- This layer can be effected by known printing methods (gravure printing, flexographic printing, screen printing, offset printing, digital printing and the like).
- the application of the partial layer can take place in the form of signs and patterns, flat or linear, wavy or zigzag-shaped and similar or analogous structures, such as guilloches, along and / or transversely to the machine direction of the substrate.
- a thin metallic layer is applied to cover the printing.
- this layer can be applied over the entire surface or partially at least in the areas covering the printing.
- the cover layer may be present on one or both sides of the carrier substrate.
- metallic layers for example, metallic layers such as Al, Cu, CO, Fe, Cr, Ti, Ni come into question.
- the thickness of the metallic layer is chosen so that the X-ray radiation can penetrate unhindered through this layer.
- the thickness of the metallic layer is preferably about 10 to 50 nm, preferably 15-25 nm.
- the deposition of the metallic layer may be accomplished in any known conventional manner, for example by (partial) spin-coating, brushing, vapor deposition, by printing (gravure, flexo, screen, offset, digital, and the like) by spraying, sputtering, or roller coating techniques Partial execution, for example, by known demetallization using an etchant or preferably a soluble wash.
- the printed X-ray sensitive layer can also be covered by laminating with opaque materials, for example with metallized or with printed or opaque films.
- the areas printed with the highly pigmented ink absorb this radiation, these areas then appear bright on the X-ray image (white).
- the security elements or film materials may also be provided on one or both sides with one or different coloring layer (s).
- the design of the non-all-colored coloring layer can represent an additional security feature or authenticity feature or identification feature.
- the security elements or film materials may have, in addition to one of the layers described, an optically active structure, for example a surface relief, a diffraction grating or a hologram, which structures may serve as an additional security feature, authenticity or identification feature.
- an optically active structure for example a surface relief, a diffraction grating or a hologram, which structures may serve as an additional security feature, authenticity or identification feature.
- the optically active structures can be prepared in any known manner. However, these diffraction-effective structures are preferably obtained by coating the carrier substrate, which optionally already has one or more of the described layers, with a radiation-curable lacquer which is pre-cured to the gel point by excitation with radiation of a defined wavelength, and simultaneous impression of the surface structure, whereupon the further Curing (main hardening) of the radiation-curable varnish by excitation radiation performed a different wavelength to the pre-curing step, followed, if necessary, a post-curing.
- the security elements according to the invention can be provided with a protective lacquer layer on one or both sides.
- the protective lacquer may be pigmented or unpigmented.
- the security element according to the invention can be provided on one or both sides with a hot or cold seal adhesive or a self-adhesive coating for application to or for embedding in a substrate.
- the security elements or the film material may therefore be suitable as security features in data carriers, in particular value documents such as identity cards, cards, banknotes or labels, seals and the like, but also as packaging material, for example in the pharmaceutical, electronics and / or food industry, after appropriate packaging.
- packaging material for example in the pharmaceutical, electronics and / or food industry, after appropriate packaging.
- blister sheets, cartons, covers, film packaging and the like for example, in the form blister sheets, cartons, covers, film packaging and the like.
- the substrates or film materials are preferably cut into strips or threads or patches, wherein the width of the strips or threads may preferably be 0.05-10 mm and the patches preferably have average widths or lengths of 0.3. 20 mm.
- the film material is preferably cut into strips, tapes, threads or patches, wherein the width of the threads, strips or tapes is preferably 0.05-50 mm and the patches are preferably average widths and lengths of 0, 5-200 mm.
- a corresponding security thread or strip can also be used as edge reinforcement of packaging, value documents and the like in the region of the edges but also as, for example, longitudinal or transverse reinforcement in the packaging or in the value document. wherein in each case a plurality of threads or strips can be provided at a defined distance from each other.
Abstract
Description
Die Erfindung betrifft Sicherheitselemente mit maschinenlesbaren Merkmalen, die eine erhöhte Fälschungssicherheit gewährleisten.The invention relates to security elements with machine-readable features that ensure increased security against counterfeiting.
Sicherheitselemente in Form von Fäden, Streifen, Bändern, Patches oder anderen Formaten werden vor allem in Wertdokumenten, beispielsweise Banknoten, Ausweispapieren und dergleichen eingesetzt. Meist weisen diese Sicherheitselemente kombinierte Merkmale, beispielsweise optische Merkmale und/oder leitfähige Merkmale und/oder magnetische Merkmale auf.Security elements in the form of threads, strips, tapes, patches or other formats are used primarily in value documents, for example banknotes, identity papers and the like. Most of these security elements have combined features, such as optical features and / or conductive features and / or magnetic features.
Aufgabe der Erfindung war es Sicherheitselemente bereitzustellen, die visuell nicht erkennbare maschinenlesbare Merkmale aufweisen und eine erhöhte Fälschungssicherheit gewährleisten.Object of the invention was to provide security elements that have visually unrecognizable machine-readable features and ensure increased security against counterfeiting.
Gegenstand der Erfindung sind daher Sicherheitselemente bestehend aus einem Trägersubstrat auf das ein oder mehrere funktionelle Sicherheitsmerkmale aufgebracht sind, dadurch gekennzeichnet, dass das Trägersubstrat eine vollflächige oder partielle Bedruckung aus einer röntgenstrahlenabsorbierenden Beschichtung, die von einer Abdeckschicht abgedeckt ist, aufweist.The invention therefore relates to security elements comprising a carrier substrate to which one or more functional security features are applied, characterized in that the carrier substrate has full-area or partial printing from an X-ray-absorbing coating which is covered by a cover layer.
Ein weiterer Gegenstand der Erfindung ist ein Folienmaterial bestehend aus einem Trägersubstrat auf das eine oder mehrere funktionelle Sicherheitsmerkmale aufgebracht sind, dadurch gekennzeichnet, dass das Trägersubstrat eine vollflächige oder partielle Bedruckung aus einer röntgenstrahlenabsorbierenden Beschichtung, die von einer Abdeckschicht abgedeckt ist, aufweist.Another object of the invention is a film material consisting of a carrier substrate on which one or more functional security features are applied, characterized in that the carrier substrate has a full-area or partial printing from a X-ray absorbing coating, which is covered by a cover layer has.
Als Trägersubstrate kommen beispielsweise Trägerfolien, vorzugsweise flexible transparente Kunststofffolien, beispielsweise aus PI, PP, MOPP, PE, PPS, PEEK, PEK, PEI, PAEK, LCP, PEN, PBT, PET, PA, PC, COC, POM, ABS, PVC in Frage.
Die Trägerfolien weisen vorzugsweise eine Dicke von 5 - 700 µm, bevorzugt 5 - 200 µm, besonders bevorzugt 5 - 50 µm auf.Carrier substrates are, for example, carrier films, preferably flexible transparent plastic films, for example of PI, PP, MOPP, PE, PPS, PEEK, PEK, PEI, PAEK, LCP, PEN, PBT, PET, PA, PC, COC, POM, ABS, PVC in question.
The carrier films preferably have a thickness of 5 to 700 .mu.m, preferably 5 to 200 .mu.m, particularly preferably 5 to 50 .mu.m.
Ferner können als Trägersubstrat auch Metallfolien, beispielsweise Al-, Cu-, Sn-, Ni-, Fe- oder Edelstahlfolien mit einer Dicke von 5 - 200 µm, vorzugsweise 10 bis 80 µm, besonders bevorzugt 20 - 50 µm dienen. Die Folien können auch oberflächenbehandelt, beschichtet oder kaschiert beispielsweise mit Kunststoffen oder lackiert sein.Furthermore, metal foils, for example Al, Cu, Sn, Ni, Fe or stainless steel foils having a thickness of 5-200 μm, preferably 10 to 80 μm, particularly preferably 20-50 μm, may also serve as the carrier substrate. The films can also be surface-treated, coated or laminated, for example, with plastics or painted.
Ferner können als Trägersubstrate auch Papier oder Verbunde mit Papier, beispielsweise Verbunde mit Kunststoffen mit einem Flächengewicht von 20 - 500 g/m2, vorzugsweise 40 - 200 g/m2 verwendet werden.Further, as carrier substrates also paper or composites with paper, for example, composites with plastics with a basis weight of 20 - 500 g / m 2, preferably 40 - 2 are used 200 g / m.
Ferner können als Trägersubstrate Gewebe oder Vliese, wie Endlosfaservliese, Stapelfaservliese und dergleichen, die gegebenenfalls vernadelt und/oder kalandriert sein können, verwendet werden. Vorzugsweise bestehen solche Gewebe oder Vliese aus Kunststoffen, wie PP, PET, PA, PPS und dergleichen, es können aber auch Gewebe oder Vliese aus natürlichen, gegebenenfalls behandelten Fasern, wie Viskosefasern eingesetzt werden. Die eingesetzten Vliese oder Gewebe weisen ein Flächengewicht von etwa 20 g/m2 bis 500 g/m2 auf. Gegebenenfalls müssen die Vliese oder Gewebe oberflächenbehandelt werden.Furthermore, woven or nonwovens, such as continuous fiber webs, staple fiber webs and the like, which may optionally be needled and / or calendered, can be used as the carrier substrates. Preferably such fabrics or webs of plastics, such as PP, PET, PA, PPS and the like, but it can also be woven or nonwovens made of natural, optionally treated fibers, such as viscose fibers are used. The nonwovens or fabrics used have a weight per unit area of about 20 g / m 2 to 500 g / m 2 . If necessary, the nonwovens or fabrics must be surface-treated.
Das Trägersubstrat wird vollflächig oder partiell mit einer mit schweren Elementen stark pigmentierten Druckfarbe bedruckt. Der Pigmentanteil kann dabei 25 - 85 Gew%, vorzugsweise 50 - 85 Gew% betragen.
Als Pigmente kommen dabei TiO2, BaSO4, Phthalocyanine, Cu-Porphyrine, Cr-Verbindungen, CdSO4 oder andere Schwermetallverbindungen in Frage.The carrier substrate is printed over the entire surface or partially with an ink which is heavily pigmented with heavy elements. The pigment content may be 25-85% by weight, preferably 50-85% by weight.
Suitable pigments include TiO 2 , BaSO 4 , phthalocyanines, Cu porphyrins, Cr compounds, CdSO 4 or other heavy metal compounds.
Die Aufbringung dieser Schicht kann durch bekannte Druckverfahren (Tiefdruck, Flexodruck, Siebdruck, Offsetdruck, Digitaldruck und dergleichen) erfolgen.The application of this layer can be effected by known printing methods (gravure printing, flexographic printing, screen printing, offset printing, digital printing and the like).
Die Aufbringung der partiellen Schicht kann in Form von Zeichen und Mustern, flächigen oder linienförmigen, wellenförmigen oder zickzackförmigen und ähnlichen oder analogen Strukturen, wie beispielsweise Guillochen, längs und/oder quer zur Maschinenrichtung des Substrats erfolgen.The application of the partial layer can take place in the form of signs and patterns, flat or linear, wavy or zigzag-shaped and similar or analogous structures, such as guilloches, along and / or transversely to the machine direction of the substrate.
Anschließend wird zur Abdeckung der Bedruckung beispielsweise eine dünne metallische Schicht aufgebracht. Dabei kann diese Schicht vollflächig oder partiell zumindest in den die Bedruckung abdeckenden Bereichen aufgebracht sein.
Ferner kann die Abdeckschicht auf einer oder beiden Seiten des Trägersubstrats vorhanden sein.Subsequently, for example, a thin metallic layer is applied to cover the printing. In this case, this layer can be applied over the entire surface or partially at least in the areas covering the printing.
Furthermore, the cover layer may be present on one or both sides of the carrier substrate.
Als metallische Schichten kommen beispielsweise metallische Schichten wie Al, Cu, CO, FE, Cr, Ti, Ni in Frage.
Die Dicke der metallischen Schicht ist so gewählt, dass die Röntgenstrahlung ungehindert durch diese Schicht durchdringen kann.
Vorzugsweise beträgt die Dicke der metallischen Schicht etwa 10 bis 50 nm, vorzugsweise 15 - 25 nm.As metallic layers, for example, metallic layers such as Al, Cu, CO, Fe, Cr, Ti, Ni come into question.
The thickness of the metallic layer is chosen so that the X-ray radiation can penetrate unhindered through this layer.
The thickness of the metallic layer is preferably about 10 to 50 nm, preferably 15-25 nm.
Die Aufbringung der metallischen Schicht kann auf jede bekannte konventionelle Weise erfolgen, beispielsweise durch (partielles) Spin-Coating, Aufstreichen, Aufdampfen, durch Drucken, (Tiefdruck, Flexodruck, Siebdruck, Offsetdruck, Digitaldruck und dergleichen) durch Aufsprühen, Sputtern oder Walzenauftragstechniken oder bei partieller Ausführung beispielsweise durch bekannte Demetallisierungsverfahren unter Verwendung eines Ätzmittels oder vorzugsweise einer löslichen Waschfarbe.The deposition of the metallic layer may be accomplished in any known conventional manner, for example by (partial) spin-coating, brushing, vapor deposition, by printing (gravure, flexo, screen, offset, digital, and the like) by spraying, sputtering, or roller coating techniques Partial execution, for example, by known demetallization using an etchant or preferably a soluble wash.
Anstelle der metallischen Beschichtung kann die gedruckte röntgenstrahlensensitive Schicht auch durch Kaschieren mit opaken Materialien, beispielsweise mit metallisierten oder mit bedruckten oder opaken Folien abgedeckt werden.Instead of the metallic coating, the printed X-ray sensitive layer can also be covered by laminating with opaque materials, for example with metallized or with printed or opaque films.
Bei Bestrahlung mit Röntgenstrahlung absorbieren die mit der stark pigmentierten Druckfarbe bedruckten Bereiche diese Strahlung, diese Bereiche erscheinen dann auf dem Röntgenbild hell (weiß).Upon irradiation with X-rays, the areas printed with the highly pigmented ink absorb this radiation, these areas then appear bright on the X-ray image (white).
Die Sicherheitselemente bzw. Folienmaterialien können ferner ein- oder beidseitig mit einer oder unterschiedlichen farbgebenden Schicht(en) versehen sein. Gegebenenfalls kann die Gestaltung der nicht vollflächigen farbgebenden Schicht ein zusätzliches Sicherheitsmerkmal bzw. Echtheitsmerkmal oder Identifikationsmerkmal darstellen.The security elements or film materials may also be provided on one or both sides with one or different coloring layer (s). Optionally, the design of the non-all-colored coloring layer can represent an additional security feature or authenticity feature or identification feature.
Ferner können die Sicherheitselemente bzw. Folienmaterialien zusätzlich zu einer der beschriebenen Schichten eine optisch wirksame Struktur, beispielsweise ein Oberflächenrelief, ein Beugungsgitter oder ein Hologramm aufweisen, wobei diese Strukturen als zusätzliches Sicherheitsmerkmal, Echtheits- oder Identifikationsmerkmal dienen können.Furthermore, the security elements or film materials may have, in addition to one of the layers described, an optically active structure, for example a surface relief, a diffraction grating or a hologram, which structures may serve as an additional security feature, authenticity or identification feature.
Die optisch wirksamen Strukturen können auf jede bekannte Weise hergestellt werden. Vorzugsweise werden diese beugungswirksamen Strukturen jedoch durch Beschichten des Trägersubstrats, das gegebenenfalls bereits eine oder mehrere der beschriebenen Schichten aufweist, mit einem strahlungshärtbaren Lack, der bis zum Gelpunkt durch Anregung mit Strahlung einer definierten Wellenlänge vorgehärtet wird, und gleichzeitige Abformung der Oberflächenstruktur, worauf die weitere Aushärtung (Haupthärtung) des strahlungshärtbaren Lacks durch Anregung Strahlung einer zum Vorhärtungsschritt unterschiedlichen Wellenlänge durchgeführt, worauf ggf. eine Nachhärtung erfolgt.The optically active structures can be prepared in any known manner. However, these diffraction-effective structures are preferably obtained by coating the carrier substrate, which optionally already has one or more of the described layers, with a radiation-curable lacquer which is pre-cured to the gel point by excitation with radiation of a defined wavelength, and simultaneous impression of the surface structure, whereupon the further Curing (main hardening) of the radiation-curable varnish by excitation radiation performed a different wavelength to the pre-curing step, followed, if necessary, a post-curing.
Ferner können die erfindungsgemäßen Sicherheitselemente mit einer Schutzlackschicht ein- oder beidseitig versehen sein. Der Schutzlack kann pigmentiert oder nicht pigmentiert sein.Furthermore, the security elements according to the invention can be provided with a protective lacquer layer on one or both sides. The protective lacquer may be pigmented or unpigmented.
Ferner kann das erfindungsgemäße Sicherheitselement ein- oder beidseitig mit einem Heiß- oder Kaltsiegelkleber oder einer Selbstklebebeschichtung zur Aufbringung auf oder zur Einbettung in ein Substrat versehen sein.Furthermore, the security element according to the invention can be provided on one or both sides with a hot or cold seal adhesive or a self-adhesive coating for application to or for embedding in a substrate.
Die Sicherheitselemente bzw. das Folienmaterial sind gegebenenfalls nach entsprechender Konfektionierung daher als Sicherheitsmerkmale in Datenträgern, insbesondere Wertdokumenten wie Ausweisen, Karten, Banknoten oder Etiketten, Siegeln und dergleichen geeignet, aber auch als Verpackungsmaterial beispielsweise in der pharmazeutischen, der Elektronik-und/oder Lebensmittelindustrie, beispielsweise in Form Blisterfolien, Faltschachteln, Abdeckungen, Folienverpackungen und dergleichen geeignet.The security elements or the film material may therefore be suitable as security features in data carriers, in particular value documents such as identity cards, cards, banknotes or labels, seals and the like, but also as packaging material, for example in the pharmaceutical, electronics and / or food industry, after appropriate packaging. For example, in the form blister sheets, cartons, covers, film packaging and the like.
Für die Anwendung als Sicherheitsmerkmale werden die Substrate bzw. Folienmaterialien bevorzugt in Streifen oder Fäden oder Patches geschnitten, wobei die Breite der Streifen oder Fäden vorzugsweise 0,05 - 10 mm betragen kann und die Patches vorzugsweise mittlere Breiten bzw. Längen von 0,3 - 20 mm.For use as security features, the substrates or film materials are preferably cut into strips or threads or patches, wherein the width of the strips or threads may preferably be 0.05-10 mm and the patches preferably have average widths or lengths of 0.3. 20 mm.
Für die Anwendung in oder auf Verpackungen wird das Folienmaterial bevorzugt in Streifen, Bänder, Fäden oder Patches geschnitten, wobei die Breite der Fäden, Streifen bzw. Bänder vorzugsweise 0,05 - 50 mm beträgt und die Patches vorzugsweise mittlere Breiten und Längen von 0,5 - 200 mm aufweisen.
Ein entsprechender Sicherheitsfaden oder -streifen kann auch als Randverstärkung von Verpackungen, Wertdokumenten und dergleichen im Bereich der Kanten aber auch als beispielsweise Längs- oder Quer - Verstärkung in der Verpackung oder im Wertdokument verwendet werden, wobei auch jeweils mehrere Fäden oder Streifen in definiertem Abstand zueinander vorgesehen sein können.For use in or on packaging, the film material is preferably cut into strips, tapes, threads or patches, wherein the width of the threads, strips or tapes is preferably 0.05-50 mm and the patches are preferably average widths and lengths of 0, 5-200 mm.
A corresponding security thread or strip can also be used as edge reinforcement of packaging, value documents and the like in the region of the edges but also as, for example, longitudinal or transverse reinforcement in the packaging or in the value document. wherein in each case a plurality of threads or strips can be provided at a defined distance from each other.
Claims (16)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07011853A EP2014479A1 (en) | 2007-06-18 | 2007-06-18 | Safety elements with machine readable, visually imperceptible characteristics |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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EP07011853A EP2014479A1 (en) | 2007-06-18 | 2007-06-18 | Safety elements with machine readable, visually imperceptible characteristics |
Publications (1)
Publication Number | Publication Date |
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EP2014479A1 true EP2014479A1 (en) | 2009-01-14 |
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ID=38720341
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP07011853A Withdrawn EP2014479A1 (en) | 2007-06-18 | 2007-06-18 | Safety elements with machine readable, visually imperceptible characteristics |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109492447A (en) * | 2018-11-12 | 2019-03-19 | 京东方科技集团股份有限公司 | Barcode scanning device and barcode scanning method |
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US4044231A (en) * | 1975-05-27 | 1977-08-23 | Addressograph Multigraph Corporation | Secure property document and method of manufacture |
US4816362A (en) * | 1984-03-31 | 1989-03-28 | Dai Nippon Insatsu Kabushiki Kaisha | Optical recording cards with non-recording reflective layer |
WO1997041179A1 (en) * | 1994-10-11 | 1997-11-06 | Peter Custer | Invisible, x-ray opaque, fluorescent printing medium for multiplex reading |
EP0927749A1 (en) * | 1997-12-29 | 1999-07-07 | Sicpa Holding S.A. | Coating composition, use of particles, method for tagging and identifying a security document comprising said coating composition |
US6474695B1 (en) * | 1988-03-04 | 2002-11-05 | Gao Gessellschaft Fur Automation Und Organisation Gmbh | Security element in the form of a thread or be embedded in security and methods of producing it |
WO2003032242A1 (en) * | 2001-10-08 | 2003-04-17 | Giesecke & Devrient Gmbh | Printed, machine-readable code, document provided with a code of this type and a method for producing said code and document |
US20030194578A1 (en) * | 2001-12-20 | 2003-10-16 | Honeywell International, Inc. | Security articles comprising multi-responsive physical colorants |
WO2005077668A1 (en) * | 2004-02-16 | 2005-08-25 | Hueck Folien Ges.M.B.H. | Tamper-proof, color-shift security feature |
WO2005105472A2 (en) * | 2004-04-30 | 2005-11-10 | De La Rue International Limited | Improvements in substrates incorporating security devices |
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2007
- 2007-06-18 EP EP07011853A patent/EP2014479A1/en not_active Withdrawn
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US4044231A (en) * | 1975-05-27 | 1977-08-23 | Addressograph Multigraph Corporation | Secure property document and method of manufacture |
US4816362A (en) * | 1984-03-31 | 1989-03-28 | Dai Nippon Insatsu Kabushiki Kaisha | Optical recording cards with non-recording reflective layer |
US6474695B1 (en) * | 1988-03-04 | 2002-11-05 | Gao Gessellschaft Fur Automation Und Organisation Gmbh | Security element in the form of a thread or be embedded in security and methods of producing it |
WO1997041179A1 (en) * | 1994-10-11 | 1997-11-06 | Peter Custer | Invisible, x-ray opaque, fluorescent printing medium for multiplex reading |
EP0927749A1 (en) * | 1997-12-29 | 1999-07-07 | Sicpa Holding S.A. | Coating composition, use of particles, method for tagging and identifying a security document comprising said coating composition |
WO2003032242A1 (en) * | 2001-10-08 | 2003-04-17 | Giesecke & Devrient Gmbh | Printed, machine-readable code, document provided with a code of this type and a method for producing said code and document |
US20030194578A1 (en) * | 2001-12-20 | 2003-10-16 | Honeywell International, Inc. | Security articles comprising multi-responsive physical colorants |
WO2005077668A1 (en) * | 2004-02-16 | 2005-08-25 | Hueck Folien Ges.M.B.H. | Tamper-proof, color-shift security feature |
WO2005105472A2 (en) * | 2004-04-30 | 2005-11-10 | De La Rue International Limited | Improvements in substrates incorporating security devices |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109492447A (en) * | 2018-11-12 | 2019-03-19 | 京东方科技集团股份有限公司 | Barcode scanning device and barcode scanning method |
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