WO2008080499A1 - Sicherheitselement mit einem optisch variablen element - Google Patents
Sicherheitselement mit einem optisch variablen element Download PDFInfo
- Publication number
- WO2008080499A1 WO2008080499A1 PCT/EP2007/010578 EP2007010578W WO2008080499A1 WO 2008080499 A1 WO2008080499 A1 WO 2008080499A1 EP 2007010578 W EP2007010578 W EP 2007010578W WO 2008080499 A1 WO2008080499 A1 WO 2008080499A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- security element
- substrate
- pigment
- layer
- electromagnetic radiation
- Prior art date
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
- B42D25/30—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
-
- 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
- B42D25/20—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
- 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
- B42D25/41—Marking using electromagnetic radiation
-
- B42D2035/24—
Definitions
- Optically variable security elements are, for example, thin-film elements which consist of a reflector layer, a dielectric and an absorber layer. If the security element is viewed from the absorber side, the viewer perceives a certain color, which changes as the viewing angle changes.
- the path of the light rays traversed in the thin-film layer is of different lengths. This difference results from the path difference of the beams reflected multiple times within the thin film layer due to the angle of incidence. Therefore, the phase angle of the interfering light beams is different depending on the angle of incidence, so that depending on the angle of incidence different colors or hues of the resulting, perceived by the observer light beam result.
- Such thin film elements may be used in the form of films, e.g. described in WO 2005/108110.
- a security element with a thin-film layer is known, in which the individual layers are arranged over the whole area on the security element.
- markings in the form of patterns, letters, numbers or images are introduced by the action of laser radiation.
- the layer sequence contains a marking layer composed of a color mixture which has a mixture component which absorbs the laser radiation and a mixture component transparent to the laser radiation. The markings are visually and / or mechanically recognizable due to an irreversible change in the optical properties of the paint mixture caused by the action of the laser radiation.
- the irreversible change of a pigment occurs, on the one hand, by the change in the optical properties of at least one layer of the pigment, i. in particular the transparency, the reflectivity, the direction of polarization and the color or hue of the pigment.
- the irreversible change of a pigment takes place by an at least partial displacement of at least one layer of the pigment.
- a layer of the pigment is not removed, evaporated or converted, but at least partially removed from its original position within the layer structure and moved to a new position within the layer structure. This is achieved, for example, by reducing the thickness of a layer at one point while increasing the thickness of one layer at another, in particular the adjacent point.
- the middle reflection layer all reflective substances, in particular metals such as aluminum or copper, for the dielectric layers S1O2 (silicon dioxide), ZrCh (zirconium dioxide) or ⁇ O2 (titanium dioxide) or other transparent substances,
- a pigment thus consists of a lower semitransparent layer of chromium and / or nickel followed by a dielectric layer of silicon dioxide, a central reflective layer of aluminum, which is again followed by a dielectric layer of silicon dioxide on the opposite side, and finally from an upper semi-permeable
- the security element it is not only possible to apply a single pigment color to the substrate, but also to apply a mixture of at least two pigment colors or several interference layers one above the other onto the security element, of which only one has a suitable reflection minimum and thus only one pigment color can be selectively changed .
- a mixture of at least one pigment color and at least one printing ink or another effect color such as, for example, a paint based on choleric liquid crystals or thermal inks, onto the security element.
- the further effect color may also be applied via the pigment color, as long as it is transparent to the laser wavelength and at least in parts of the visible spectrum.
- a multilayer film body is for example a credit or identity card, wherein the security element according to the invention is located inside the film body and is covered by a transparent film.
- a security element according to the invention on a security, such as a security device. a banknote to cover through a transparent film.
- the substrate is printed on the front and / or the back and the printing recognizable in transmitted light. This has the advantage that different information can be seen in transmitted light and reflected light.
- infrared lasers in the wavelength range from 0.8 .mu.m to 3 .mu.m in particular Nd: Y AG laser or Nd: YVGvLaser be used. If lasers with higher power are used, the pulse energy can be reduced to the necessary level by fading, beam splitting, absorption filters, defocusing or similar known methods. Alternatively, the laser frequency can be increased accordingly.
- the substrate with the security element according to the invention can be combined with any other security feature, in particular within a value document.
- the substrate with the security element according to the invention can be applied over a security thread, combined with a hologram or diffractive structures, or arranged alongside or overlapping with other optically variable structures.
- the laser beam 5 thus alters the partially transmissive layer 92 of the optically variable color 3.
- a change in the color change is accompanied by For example, achieved in Silvery, depending on the irradiance of the laser beam 5, a part of the optically variable effect is maintained. The lower the irradiance of the laser beam 5, the more the optically variable effect is retained.
- the location affected by the laser beam 5 is clearly visible in FIG. 3a when viewed in incident light, e.g. as a silvery spot with a changed color change or as an exclusively silvery spot without further color change.
- the optically variable ink 3 When the optically variable ink 3 is printed on a partially or completely transparent substrate, the optically variable color, as viewed in transmitted light both in the areas affected by the laser beam 5 and in the uninfluenced areas, appears in a nearly uniform hue, e.g. uniform gray.
- the spot influenced by the laser beam 5 thus does not stand out in transmitted light with respect to the unaffected areas, since pigments were only influenced in individual layers by the laser beam 5, whereas the almost opaque reflection layer 7 remained unaffected. Thus, the total transmittance and the optical density of the pigments were not changed.
Landscapes
- Business, Economics & Management (AREA)
- Accounting & Taxation (AREA)
- Finance (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Electromagnetism (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Credit Cards Or The Like (AREA)
- Printing Methods (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA2671611A CA2671611C (en) | 2006-12-22 | 2007-12-06 | Security element having an optically variable element |
AU2007341700A AU2007341700B2 (en) | 2006-12-22 | 2007-12-06 | Safety element having an optically variable element |
EP07847008.5A EP2104618B1 (de) | 2006-12-22 | 2007-12-06 | Sicherheitselement mit einem optisch variablen element |
PL07847008T PL2104618T3 (pl) | 2006-12-22 | 2007-12-06 | Element zabezpieczający z elementem optycznie zmiennym |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006062281A DE102006062281A1 (de) | 2006-12-22 | 2006-12-22 | Sicherheitselement mit einem optisch variablen Element |
DE102006062281.2 | 2006-12-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008080499A1 true WO2008080499A1 (de) | 2008-07-10 |
Family
ID=39111470
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2007/010578 WO2008080499A1 (de) | 2006-12-22 | 2007-12-06 | Sicherheitselement mit einem optisch variablen element |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP2104618B1 (de) |
AU (1) | AU2007341700B2 (de) |
CA (1) | CA2671611C (de) |
DE (1) | DE102006062281A1 (de) |
PL (1) | PL2104618T3 (de) |
RU (1) | RU2429978C2 (de) |
WO (1) | WO2008080499A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011116491A1 (de) | 2011-10-20 | 2013-04-25 | Giesecke & Devrient Gmbh | Mikrokapsel und Verwendung derselben, Mikrokakpseln aufweisendes Sicherheitselement und mit demselben ausgestatteter Datenträger |
CN105172419A (zh) * | 2008-06-12 | 2015-12-23 | 德国捷德有限公司 | 具有可光变元件的安全元件 |
DE102017003281A1 (de) | 2017-04-04 | 2018-10-04 | Giesecke+Devrient Currency Technology Gmbh | Sicherheitselement mit Reliefstruktur und Herstellungsverfahren hierfür |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009058603A1 (de) | 2009-12-17 | 2011-06-22 | Giesecke & Devrient GmbH, 81677 | Wertdokumentsystem und Verfahren zum Herstellen desselben |
DE102010006173A1 (de) | 2010-01-29 | 2011-08-04 | Giesecke & Devrient GmbH, 81677 | Sicherheitselement mit erweitertem Farbkippeffekt und thermochromer Zusatzfunktion |
FR2961621B1 (fr) * | 2010-06-22 | 2014-09-05 | Arjowiggins Security | Procede d'authentification et/ou d'identification d'un article de securite |
EP2946938B1 (de) | 2014-05-23 | 2017-04-12 | Merck Patent GmbH | Verfahren zur laserbehandlung von beschichtungen |
DE102021005870A1 (de) * | 2021-11-26 | 2023-06-01 | Giesecke+Devrient Mobile Security Gmbh | Sicherheitsmerkmal für ein Identifikationsdokument, Identifikationsdokument und Verfahren zur Herstellung eines Sicherheitsmerkmals |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6114018A (en) * | 1995-06-06 | 2000-09-05 | Flex Products, Inc. | Paired optically variable article with paired optical structures and ink, paint and foil incorporating the same and method |
WO2005038136A1 (de) * | 2003-10-17 | 2005-04-28 | Giesecke & Devrient Gmbh | Sicherheitselement mit farbkippeffekt |
US20050128543A1 (en) * | 2000-01-21 | 2005-06-16 | Flex Products, Inc. | Optically variable security devices |
EP1719636A1 (de) * | 2005-05-04 | 2006-11-08 | Sicpa Holding S.A. | Sicherheitselement mit optischer Schwarz-zu-Farbe-Verschiebung |
-
2006
- 2006-12-22 DE DE102006062281A patent/DE102006062281A1/de not_active Withdrawn
-
2007
- 2007-12-06 WO PCT/EP2007/010578 patent/WO2008080499A1/de active Application Filing
- 2007-12-06 RU RU2009127521/12A patent/RU2429978C2/ru not_active IP Right Cessation
- 2007-12-06 AU AU2007341700A patent/AU2007341700B2/en not_active Withdrawn - After Issue
- 2007-12-06 EP EP07847008.5A patent/EP2104618B1/de not_active Not-in-force
- 2007-12-06 CA CA2671611A patent/CA2671611C/en not_active Expired - Fee Related
- 2007-12-06 PL PL07847008T patent/PL2104618T3/pl unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6114018A (en) * | 1995-06-06 | 2000-09-05 | Flex Products, Inc. | Paired optically variable article with paired optical structures and ink, paint and foil incorporating the same and method |
US20050128543A1 (en) * | 2000-01-21 | 2005-06-16 | Flex Products, Inc. | Optically variable security devices |
WO2005038136A1 (de) * | 2003-10-17 | 2005-04-28 | Giesecke & Devrient Gmbh | Sicherheitselement mit farbkippeffekt |
EP1719636A1 (de) * | 2005-05-04 | 2006-11-08 | Sicpa Holding S.A. | Sicherheitselement mit optischer Schwarz-zu-Farbe-Verschiebung |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105172419A (zh) * | 2008-06-12 | 2015-12-23 | 德国捷德有限公司 | 具有可光变元件的安全元件 |
DE102011116491A1 (de) | 2011-10-20 | 2013-04-25 | Giesecke & Devrient Gmbh | Mikrokapsel und Verwendung derselben, Mikrokakpseln aufweisendes Sicherheitselement und mit demselben ausgestatteter Datenträger |
WO2013056782A1 (de) | 2011-10-20 | 2013-04-25 | Giesecke & Devrient Gmbh | Mikrokapsel und verwendung derselben, mikrokapseln aufweisendes sicherheitselement und mit demselben ausgestatteter datenträger |
DE102017003281A1 (de) | 2017-04-04 | 2018-10-04 | Giesecke+Devrient Currency Technology Gmbh | Sicherheitselement mit Reliefstruktur und Herstellungsverfahren hierfür |
WO2018184715A1 (de) | 2017-04-04 | 2018-10-11 | Giesecke+Devrient Currency Technology Gmbh | Sicherheitselement mit reliefstruktur und herstellungsverfahren hierfür |
Also Published As
Publication number | Publication date |
---|---|
AU2007341700B2 (en) | 2013-05-09 |
CA2671611C (en) | 2015-08-11 |
PL2104618T3 (pl) | 2014-05-30 |
CA2671611A1 (en) | 2008-07-10 |
EP2104618A1 (de) | 2009-09-30 |
DE102006062281A1 (de) | 2008-06-26 |
RU2009127521A (ru) | 2011-01-27 |
AU2007341700A1 (en) | 2008-07-10 |
RU2429978C2 (ru) | 2011-09-27 |
EP2104618B1 (de) | 2013-11-27 |
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