EP1770670B1 - Verfahren zur holographischen Sicherung eines Dokuments und ein so gesichertes Dokument - Google Patents

Verfahren zur holographischen Sicherung eines Dokuments und ein so gesichertes Dokument Download PDF

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Publication number
EP1770670B1
EP1770670B1 EP06291534A EP06291534A EP1770670B1 EP 1770670 B1 EP1770670 B1 EP 1770670B1 EP 06291534 A EP06291534 A EP 06291534A EP 06291534 A EP06291534 A EP 06291534A EP 1770670 B1 EP1770670 B1 EP 1770670B1
Authority
EP
European Patent Office
Prior art keywords
document
marking
film
sign
transferred
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.)
Active
Application number
EP06291534A
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English (en)
French (fr)
Other versions
EP1770670A1 (de
Inventor
Hugues Souparis
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.)
Surys SA
Original Assignee
Hologram Industries SAS
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 Hologram Industries SAS filed Critical Hologram Industries SAS
Priority to PL06291534T priority Critical patent/PL1770670T3/pl
Publication of EP1770670A1 publication Critical patent/EP1770670A1/de
Application granted granted Critical
Publication of EP1770670B1 publication Critical patent/EP1770670B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/02—Forms or constructions
    • G09F3/0291—Labels or tickets undergoing a change under particular conditions, e.g. heat, radiation, passage of time
    • G09F3/0292—Labels or tickets undergoing a change under particular conditions, e.g. heat, radiation, passage of time tamper indicating labels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/02—Forms or constructions

Definitions

  • the invention belongs to the field of secure document marking.
  • the film exhibits optically active signs including zero order diffraction gratings.
  • These zero-order diffraction gratings are known in the field of security marking and are, for example, such that they have a well-defined color when they are observed in a first direction of observation and a distinct color when they are observed at 90 °. They have the advantage of being difficult to reproduce by possible fraudsters.
  • the optical activation is obtained by the presence of diffraction gratings at the level of the signs.
  • These signs have for example the form of numerical characters.
  • the zero-order diffraction gratings corresponding to the signs to be transferred to a document are integrated into the film in relatively transparent areas called "patches" in the English language, or lozenge, covering the diffraction gratings. This pellet exceeds the diffraction grating corresponding to the sign to be applied, and generally extends over the entire width of the film.
  • the area of the pellet which does not cover the sign reflects the light at zero order, and parasitizes the legibility of the sign, when it is in the form of a zero-order diffraction grating.
  • the area of the pellet therefore causes a glassy reflection which hinders the zero-order reading for zero-order diffraction gratings.
  • the methods for securely marking at least one sign to be transferred to a document therefore have the disadvantage that the readability of the sign (s) marked in the form of a zero-order diffraction grating is poor.
  • the invention aims to overcome this drawback.
  • An object of the invention is therefore to improve the readability of the signs marked in the form of a zero-order diffraction grating during marking on a document.
  • Another object of the invention is to allow marking of signs in the form of a zero-order diffraction grating on a support without these elements being covered by a protective layer.
  • At least one of these objects is achieved by a method according to claim 1.
  • marking films comprising pellets, the pellets comprising at least two signs to mark, each of the signs having different optical properties.
  • the invention more generally relates to a method of depositing a two-color optical mark for quickly identifying and authenticating a bank note document or other document carrying a composite element requiring immediate visual identification by a person without particular qualifications or expertise.
  • This mark must not be easily reproduced or infringed. It also offers the possibility of expert level control.
  • the invention also relates to a secure document according to claim 3.
  • the film has two uniform bands of distinct optical effects respectively on either side of a longitudinal line.
  • said film has a transfer layer capable of transfer by means of a marking iron, and in particular with a hot-marking iron.
  • the film is in the form of a continuous coil with a sequence of separate security optical effect bands ordered longitudinally.
  • the film is in the form of a coil containing a succession of patches, said patches consisting of several zones of separate security optical effects.
  • the iron which will draw in each zone a precise useful surface, allowing to transfer on the document of the distinct signs having specific optical security effects.
  • a part of a security optical component consisting of a transparent film on which a plurality of transferable diffraction gratings are formed on a support where said networks are formed is superimposed.
  • diffraction forms at least one pair of juxtaposed signs, each of the signs of said pair producing distinct optical effects, and transferring at least one of the two signs of said pair onto the adjacent document.
  • At least the two signs of a said pair are transferred to the document to be authenticated.
  • the shape of the hot stamping irons varies from one document to another and makes it possible to customize the authentication signs.
  • a film comprising a transparent substrate, an embossing layer, a high refractive index layer, an optional contrast layer, a thin layer of a preferably opaque colored varnish is prepared and said film is printed to form a series. bands having distinct optical effects with a pattern for producing two distinct optical effects for said adjacent signs of a pair when using the film.
  • a document secured by an optical security component consists of at least two distinct signs having different optical effects visible to the zero order transferred to said document by hot stamping.
  • the figure 1 presents a solution known in the state of the art.
  • the security component is in the form of a film 1 having optically active signs 5, here in the form of numerical characters.
  • the two characters "2" and "0" may, in the prior art be identical or different as to the optical effects they produce.
  • This zone includes, besides the 2 characters, a transparent zone which reflects the light in the zero order, parasitic by the same the readability of the characters.
  • One of the objectives of the invention is to delete this area.
  • the film 1 is in the form of a coil consisting of differentiated patches.
  • the film presents the same general structure.
  • the diffracting gratings spread uniformly along the coil on either side of the center line.
  • the choice of the form of hot stamping will achieve at the time of transfer the characters here "2" and "0" suggested by the dots.
  • the invention offers the possibility with the same film to mark distinct signs by simply changing the marking tool and limit the stock to a single stock of consumable.
  • the figure 3 represents an example of a document marked according to the prior art.
  • the marking is in the form of a transfer of an optically variable component 7 having two configurations 15, 25, of different colors possibly, but embedded in the transparent varnish deposited simultaneously at the time of transfer and which disturbs the reading at the same time. zero order.
  • the figure 4 represents an example of a document marked according to the invention.
  • the marking is in the form of a transfer of two optically variable components 2, 3, possibly of different colors, and producing distinct optical effects. They are directly transferred onto a diffusing paper substrate.
  • the optical effect is for example obtained with a maximum intensity according to two different orientations, specific to each of the signs forming the pair 2, 3. Their readability is increased by the fact that they are no longer embedded in an important glassy reflection zone but they stand out directly on the paper that is diffusing it.
  • only one sign is transferred from a film comprising a single uniform band of zero-order diffraction gratings.
  • an iron having the shape of the sign to be transferred is used, and it is applied to the film by hot stamping.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Credit Cards Or The Like (AREA)
  • Holo Graphy (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)

Claims (3)

  1. Verfahren für die Sicherungsmarkierung mindestens eines auf eine Unterlage zu übertragenden Zeichens (5), wobei das genannte Verfahren umfasst:
    - einen Überlagerungsschritt, bei dem man eine Markierungsfolie (1), auf der eine Mehrzahl von auf die genannte Unterlage übertragbaren Beugungsgittern der Zahl null übereinander lagert,
    - einen Übertragungsschritt, bei dem man das genannte zu übertragende Zeichen (5) auf die genannte Unterlage überträgt,
    wobei das Verfahren dadurch gekennzeichnet ist, dass der Übertragungsschritt Schritte umfasst, bei denen:
    • man mindestens ein Markierungseisen auf die genannte Folie (1) setzt, wobei das genannte Markierungseisen die Form des genannten zu übertragenden Zeichens (5) aufweist.
  2. Verfahren für die Sicherungsmarkierung gemäß Anspruch 1, bei dem die genannte Markierungsfolie (1) mindestens erste Beugungsgitter der Zahl null und zweite Beugungsgitter der Zahl null aufweist, wobei die genannten ersten Beugungsgitter optische Effekte erzeugen, die sich von denjenigen unterscheiden, die von den genannten zweiten Beugungsgittern erzeugt werden, und bei dem man beim Übertragungsschritt mindestens ein erstes Zeichen (5) und ein zweites Zeichen (5) auf die genannte Unterlage überträgt, und bei dem der Übertragungsschritt Schritte umfasst, bei denen:
    . man ein erstes Markierungseisen auf die genannte Folie (1) setzt, im Bereich der ersten Beugungsgitter, wobei das genannte erste Markierungseisen die Form des genannten ersten Zeichens (5) aufweist;
    . man ein zweites Markierungseisen auf die genannte Folie (1) setzt, im Bereich der zweiten Beugungsgitter, wobei das genannte zweite Markierungseisen die Form des genannten zweiten Zeichens (5) aufweist.
  3. Gesicherte Unterlage, dadurch gekennzeichnet, dass sie anhand eines Verfahrens gemäß einem der Ansprüche 1 oder 2 markiert ist.
EP06291534A 2005-09-30 2006-09-29 Verfahren zur holographischen Sicherung eines Dokuments und ein so gesichertes Dokument Active EP1770670B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL06291534T PL1770670T3 (pl) 2005-09-30 2006-09-29 Sposób holograficznego zabezpieczania dokumentu i zabezpieczony tym sposobem dokument

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0510029A FR2891650B1 (fr) 2005-09-30 2005-09-30 Procede pour la securisation holographique d'un document et la fabrication d'un tel document. film pour la mise en oeuvre de ce procede et document ainsi securise.

Publications (2)

Publication Number Publication Date
EP1770670A1 EP1770670A1 (de) 2007-04-04
EP1770670B1 true EP1770670B1 (de) 2009-01-07

Family

ID=36581502

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06291534A Active EP1770670B1 (de) 2005-09-30 2006-09-29 Verfahren zur holographischen Sicherung eines Dokuments und ein so gesichertes Dokument

Country Status (6)

Country Link
EP (1) EP1770670B1 (de)
AT (1) ATE420424T1 (de)
DE (1) DE602006004665D1 (de)
ES (1) ES2320484T3 (de)
FR (1) FR2891650B1 (de)
PL (1) PL1770670T3 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3087385B1 (fr) 2018-10-19 2021-03-12 Surys Film de securite et document securise au moyen d'un film de securite

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0201323B1 (de) * 1985-05-07 1994-08-17 Dai Nippon Insatsu Kabushiki Kaisha Artikel mit transparentem Hologramm
EP0330738B1 (de) * 1988-03-03 1991-11-13 Landis & Gyr Betriebs AG Dokument
US6461544B1 (en) * 1993-05-03 2002-10-08 Crown Roll Leaf, Inc. Two-dimensional/three-dimensional graphic material and method of making same
DE4423295C2 (de) * 1994-07-02 1996-09-19 Kurz Leonhard Fa Beugungsoptisch wirksame Strukturanordnung
GB9504145D0 (en) * 1995-03-02 1995-04-19 De La Rue Holographics Ltd Improvements relating to packaging
JP3571186B2 (ja) * 1997-06-23 2004-09-29 ニスカ株式会社 情報カード形成装置および情報カード形成装置を内臓もしくは接続可能にしたプリンタ

Also Published As

Publication number Publication date
EP1770670A1 (de) 2007-04-04
ATE420424T1 (de) 2009-01-15
FR2891650A1 (fr) 2007-04-06
PL1770670T3 (pl) 2009-07-31
FR2891650B1 (fr) 2007-12-07
DE602006004665D1 (de) 2009-02-26
ES2320484T3 (es) 2009-05-22

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