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EP3623165B1 - Document doté d'une caractéristique de sécurité - Google Patents

Document doté d'une caractéristique de sécurité Download PDF

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Publication number
EP3623165B1
EP3623165B1 EP18194637.7A EP18194637A EP3623165B1 EP 3623165 B1 EP3623165 B1 EP 3623165B1 EP 18194637 A EP18194637 A EP 18194637A EP 3623165 B1 EP3623165 B1 EP 3623165B1
Authority
EP
European Patent Office
Prior art keywords
image
substrate
document
producing
face
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
EP18194637.7A
Other languages
German (de)
English (en)
Other versions
EP3623165A1 (fr
Inventor
Sylvain Constancio
Jean-Marc Joiret
Pascale Préau
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.)
Zetes SA
Original Assignee
Zetes SA
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 Zetes SA filed Critical Zetes SA
Priority to EP18194637.7A priority Critical patent/EP3623165B1/fr
Priority to BE20195608A priority patent/BE1027353B1/fr
Publication of EP3623165A1 publication Critical patent/EP3623165A1/fr
Application granted granted Critical
Publication of EP3623165B1 publication Critical patent/EP3623165B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B42D25/40—Manufacture
    • B42D25/405—Marking
    • B42D25/43—Marking by removal of material
    • 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
    • B42D25/43—Marking by removal of material
    • B42D25/435—Marking by removal of material using electromagnetic radiation, e.g. laser
    • 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
    • B42D25/346—Perforations

Definitions

  • the invention relates to a method of providing a physical document with a security feature.
  • the invention also relates to a physical document comprising a security feature.
  • an identity document includes three images of the face of the legitimate owner of the identity document. A first and a second image of the face of the legitimate owner are arranged on two different image areas on a planar substrate and a third image of the face of the legitimate owner is arranged on an adjacent surface which is hingedly attached to the substrate. Authenticity of the identity document is verified by visually checking the correspondence between the three images.
  • Patent publication numbers WO2018/127269 , and EP1997643 disclose a security feature for a security document wherein the security feature comprises a printed image and a corresponding perforated image.
  • Patent publication number EP1607235 discloses an authentication mark comprising a printed image and a corresponding perforated image.
  • an improved security feature By an improved security feature, one understands a security feature which renders the forging of the said document more difficult and/or which renders the visual verification of the authenticity of said document easier, and/or a security feature which can be applied to a wider variety of physical documents.
  • a method for providing a physical document with a security feature in the form of images comprising a planar and monolithic substrate presenting a front face and a back face separated by a thickness t, said method comprising the steps of:
  • the method according to the invention further comprises the step of producing a third image on said substrate, said third image being visible when looking at the back face, said third image extending over a projection of the first image area on the back face, in matching superposition with the first image, and said third image being a mirror image of the first image.
  • a substrate forming a single piece having a total thickness t such as for example a single sheet of paper of thickness t or a multilayer laminate of total thickness t or more generally a substrate made by bonding together two or more sheets by their surfaces and having a total thickness t.
  • a document comprising a security feature obtained with a method according to the invention is therefore harder to forge.
  • the authenticity of such a document is also easier to verify because the person making the visual verification only needs to look at one single place on the document, namely at the first image area.
  • a method according to the invention is as well suitable for documents made of one single substrate (whether single layer or multilayer), such as current Belgian ID cards for example, as for documents made of several sheets of paper and/or other planar substrates, such as for current Belgian passports for example. Indeed, a single substrate is sufficient to produce the security feature.
  • the first image depicts a real subject.
  • a real subject By a real subject, one shall understand a subject which physically exists in the real world.
  • a flower which can be found in the nature is an example of a real subject.
  • An imaginary flower, namely a flower which doesn't exist in nature but only in one's imagination, is not a real subject. Indeed, this renders the verification of the authenticity of the document by a human person more reliable.
  • the first image depicts a human face.
  • the physical document is a personal identity document and the first image comprises an image of the face of the legitimate owner of the personal identity document. More preferably, the physical document is an identity card or a passport or a driving licence and the first image comprises or is an image of the face of the legitimate owner of the identity card, passport or driving licence.
  • a method according to the invention is indeed particularly suited to produce a security feature on such documents.
  • the perforation pattern consists of a plurality of holes, each hole having an average diameter comprised between 50 microns and 200 microns. Such holes are so small that they interfere little with the visual appearance of the first image.
  • the perforation pattern comprises a plurality of blind holes.
  • the perforation pattern comprises a plurality of through holes.
  • the perforation pattern comprises a mix of blind holes and through holes. Each hole is preferably produced by perforating the substrate with the use of a laser beam.
  • the step of producing the first image on the substrate is a step of printing the first image on said substrate. More preferably, the step of producing the first image on the substrate is a step of laser engraving the first image on said substrate.
  • the step of producing the first image on said substrate precedes the step of producing the second image on said substrate.
  • the inventors have indeed found that such order of preference results in a better final visual result than with the opposite order.
  • the physical document is a personal identity document and the first image comprises an image of the face of the legitimate owner of the personal identity document. More preferably, the physical document is an identity card or a passport or a driving licence or the like.
  • the invention also relates to a physical document comprising a planar and monolithic substrate presenting an front face (4) and a back face (5) separated by a thickness t, said planar substrate comprising :
  • the invention firstly concerns a method for providing a physical document (1) with a security feature in the form of images, wherein said document (1) comprises a planar and monolithic substrate (2) presenting a front face (4) and a back face (5) separated by a thickness t.
  • a monolithic substrate presenting a front face and a back face separated by a thickness t
  • a substrate forming a single piece having a total thickness t such as for example a single sheet of paper of thickness t or a multilayer laminate of total thickness t or more generally a substrate made by bonding together two or more sheets or layers by their surfaces and having a total thickness t.
  • the method comprises the step of producing a first image (10) depicting a first subject on said substrate (2), said first image (10) being visible when looking at the front face (4) and said first image (10) extending over a first image area (8).
  • the first image (10) may be produced by various known processes, such as by printing or by laser engraving for example.
  • the process used for producing the first image (10) shall however be different from the process used for producing the second image (20) and which will be described herein below.
  • the first subject may be any subject, concrete or abstract.
  • the first subject is a real subject and more preferably a human face.
  • the method further comprises the step of producing a second image (20) depicting the said first subject on the said substrate (2), said second image (20) being visible when looking at the front face (4) of the substrate (2) and said second image (20) being in the form of a perforation pattern which displays grey tones when viewed against a bright background.
  • the second image (20) is produced to extend over the first image area (8), in matching superposition with the first image (10).
  • the visual appearance of a document (1) produced with a method according to the invention will therefore be as shown for example in Fig.1 (when the subject is a human face) or in Fig.7 (when the subject is a line segment) or in Fig. 9 (when the subject is a capital letter "A").
  • the perforation pattern preferably consists of a plurality of holes, each hole having an average diameter comprised between 50 microns and 200 microns.
  • the perforation pattern comprises a plurality of blind holes.
  • the perforation pattern comprises a plurality of through holes.
  • each hole is produced by perforating the substrate (2) with the use of a laser beam.
  • the laser beam may be directed towards the front face (4) or towards the back face (5) of the substrate (2).
  • the said laser beam is directed towards the back face (5) of the substrate (2). Since holes obtained with this method are generally conical in shape, this preferred position and orientation of the laser beam with respect to the substrate (2) results in smaller openings at the level of the front face (4) than at the level of the back face (5), thereby interfering less with the appearance of the first image (10) than if the laser was directed towards the front face (4).
  • the method further comprises the step of producing a third image (30) on said substrate (2), said third image (30) being visible when looking at the back face (5), said third image (30) extending over a projection of the first image area (8) on the back face (5), in matching superposition with the first image (10), and said third image (30) being a mirror image of the first image (10).
  • the third image (30) may be produced by various processes, such as by printing or by laser engraving for example.
  • the process used for producing the third image (30) shall however be different from the process used for producing the second image (20) as described herein above.
  • the process used for producing the third image (30) is the same as the process used for producing the first image (10).
  • the step of producing the first image (10) on said substrate (2) precedes the step of producing the second image (20) on said substrate (2).
  • the inventors have indeed found that such order of preference results in a better visual result than with the opposite order.
  • the step of producing the third image (30) on the substrate (2), as well as the step of producing the first image (10) on the substrate (2) both preferably precede the step of producing the second image (20) on said substrate (2).
  • the physical document (1) is a personal identity document (1) and the first image (10) comprises an image of the face of the legitimate owner of the personal identity document (1).
  • Preferred examples of such identity document (1) are for example an identity card, a passport, or a driving licence.
  • a physical document (1) having a security feature in the form of images comprises a planar and monolithic substrate (2) presenting a front face (4) and a back face (5) separated by a thickness t.
  • the substrate (2) comprises:
  • Fig.2 shows a cross-section along the line A-A of a first exemplary embodiment of the document (1) of Fig.1 .
  • This figure gives a better view of features of the invention.
  • all holes perforated in the substrate (2) to form the second image (20) are through holes.
  • Fig.3 shows a cross-section along the line A-A of a second exemplary embodiment of the document (1) of Fig.1 . It is similar to the embodiment shown on Fig.2 except that the second image (20) is formed by a perforation pattern comprising a mix of through holes and blind holes.
  • the blind holes may for example correspond to parts of the first image (10) which are the darkest.
  • Fig.4 shows a cross-section along the line A-A of a third exemplary embodiment of the document (1) of Fig.1 . It is similar to the embodiment shown on Fig.2 except that the substrate (2) is a multilayer substrate (2) comprising three layers (2a, 2b, 2c) which are bonded to each other. In this example all holes perforated in the substrate (2) to form the second image (20) are through holes. In other examples, some holes may alternatively be blind holes, as is the case with the example of Fig.3 .
  • the substrate (2) may also comprise more than three layers.
  • Fig.5 shows a cross-section along the line A-A of an embodiment according to the invention of the document (1) of Fig.1 . It is similar to the embodiment shown on Fig.2 except that the substrate (2) comprises a third image (30) which is visible when looking at the back face (5), said third image (30) extending over a projection of the first image area (8) on the back face (5), in matching superposition with the first image (10), and said third image (30) being a mirror image of the first image (10).
  • Fig.6 schematically shows another example of a document (1) in perspective view. It is similar to the example of Fig.1 and Fig.2 , except that the subject is a thick line segment in this case.
  • a straight line extending in a first image area (8) is printed on the front face (4) of the substrate (2) and this straight line defines the first image (10).
  • a plurality of through holes (21) is furthermore made in the substrate (2) to form the second image (20). As can be seen, these through holes (21) extend over the first image area (8) and are aligned with the straight line so that the second image (20) is in matching superposition with the first image (10).
  • Fig.7 schematically shows the document (1) of Fig.6 , in front view. When looking at this front view, one will see a thick line segment and a corresponding image from the light passing through the pattern of through holes.
  • Fig.8 schematically shows another example of a document (1) in perspective view.
  • the first image (10) depicts a capital letter "A” which is for example produced by printing said capital letter "A” on the front face (4) of the substrate (2).
  • the second image (20) will depict the same capital letter "A” and will be produced by perforating the substrate (2) there where the first image (10) was printed or will be printed and in such a way that both images are in matching superposition, as shown in Fig.8 .
  • the capital letter "A" shown in light grey and bearing reference number 20 is a schematic representation of a sectional view of the perforations, somewhere through the core of the substrate (2).
  • Fig.9 schematically shows the document (1) of Fig.8 , in front view.
  • a document (1) comprising such a substrate (2)
  • both capital letters "A” match in shape, size and position when looking at the front face (4) of the substrate (2). In case of a match, it would indicate that the document (1) is most probably authentic. If both capital letters "A" are not in superposition, such as when one capital letter “A” is decentred or rotated compared to the other capital letter “A” or when one capital letter "A” has a larger size compared to the other capital letter “A”, then this would indicate that the document (1) is most probably not authentic and has been forged.
  • the inventors have found that the following imaging features provide good results:
  • the document (1) according to the invention is a personal identity document (1), such as an identity card, or a passport, or a driving licence for example.
  • a method for providing a physical document (1) with a security feature comprises the steps of providing the document (1) with thee images (10, 20, 30) depicting a same subject.
  • the first two images (10, 20) are produced with respectively two different techniques.
  • the two images (10, 20) are arranged to cover the same image area on the document (1) and to be in matching superposition with each other.
  • the third image (30) is arranged so as to be visible when looking at the back face (5) of the document (1) and extends over a projection of the first image area (8) on the back face (5), in matching superposition with the first image (10).
  • the third image (30) is a mirror image of the first image (10). This matching superposition of three images is difficult to realize and yet very easy to verify with naked eyes, thereby improving the security of the document (1) and the verification of its authenticity.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Optics & Photonics (AREA)
  • Toxicology (AREA)
  • Credit Cards Or The Like (AREA)

Claims (14)

  1. Procédé d'application d'une caractéristique de sécurité se présentant sous la forme d'images à un document physique (1), ledit document (1) comprenant un substrat plan et monolithique (2) qui présente une face avant (4) et une face arrière (5) séparées par une épaisseur t, ledit procédé comprenant les étapes suivantes:
    - produire une première image (10) qui représente un premier sujet sur ledit substrat (2), ladite première image (10) étant visible lorsque l'on regarde du côté de la face avant (4), et ladite première image (10) s'étendant sur une première région d'image (8),
    - produire une deuxième image (20) qui représente le premier sujet sur ledit substrat (2), ladite deuxième image (20) étant visible lorsque l'on regarde du côté de la face avant (4), et ladite deuxième image (20) se présentant sous la forme d'un motif de perforation qui affiche des tons de gris lorsque l'on regarde devant un arrière-plan lumineux,
    dans lequel la deuxième image (20) s'étend sur la première région d'image (8), en superposition coïncidente avec la première image (10),
    caractérisé en ce qu'il comprend en outre l'étape de production d'une troisième image (30) sur ledit substrat (2), ladite troisième image (30) étant visible lorsque l'on regarde du côté de la face arrière (5), ladite troisième image (30) s'étendant au-dessus d'une projection de la première région d'image (8) sur la face arrière (5), en superposition coïncidente avec la première image (10), et ladite troisième image (30) étant une image inversée de la première image (10).
  2. Procédé selon la revendication 1, caractérisé en ce que la première image (10) représente un sujet réel, de préférence un visage humain.
  3. Procédé selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que le motif de perforation consiste en une pluralité de trous, chaque trou présentant un diamètre moyen qui est compris entre 50 microns et 200 microns.
  4. Procédé selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le motif de perforation comprend une pluralité de trous borgnes.
  5. Procédé selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le motif de perforation comprend une pluralité de trous traversants.
  6. Procédé selon l'une quelconque des revendications 3 à 5, caractérisé en ce que chaque trou est réalisé en perforant le substrat (2) en utilisant un rayon laser.
  7. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'étape de production de la première image (10) sur ledit substrat (2) est une étape d'impression de la première image (10) sur ledit substrat (2).
  8. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'étape de production de la première image (10) sur ledit substrat (2) est une étape de gravure au laser de la première image (10) sur ledit substrat (2).
  9. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'étape de production de la première image (10) sur ledit substrat (2) précède l'étape de production de la deuxième image (20) sur ledit substrat (2) .
  10. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le document physique (1) est un document d'identité personnelle (1), de préférence une carte d'identité ou un passeport ou un permis de conduire, et en ce que la première image (10) comprend un image du visage du propriétaire légitime du document d'identité personnelle (1).
  11. Document physique (1) comprenant un substrat plan et monolithique (2) qui présente une face avant (4) et une face arrière (5) séparées par une épaisseur t, ledit substrat plan (2) comprenant:
    - une première image (10) qui représente un premier sujet, ladite première image (10) étant visible lorsque l'on regarde du côté de la face avant (4) et s'étendant sur une première région d'image (8),
    - une deuxième image (20) qui représente le premier sujet, ladite deuxième image (20) se présentant sous la forme d'un motif de perforation qui affiche des tons de gris lorsque l'on regarde devant un arrière-plan lumineux,
    dans lequel la deuxième image (20) s'étend sur la première région d'image (8) et est agencée en superposition coïncidente avec la première image (10),
    caractérisé en ce que ledit substrat (2) comporte en outre une troisième image (30), ladite troisième image (30) étant visible lorsque l'on regarde du côté de la face arrière (5), ladite troisième image (30) s'étendant au-dessus d'une projection de la première région d'image (8) sur la face arrière (5), en superposition coïncidente avec la première image (10), et ladite troisième image (30) étant une image inversée de la première image (10).
  12. Document physique (1) selon la revendication 11, caractérisé en ce que la première image (10) représente un sujet réel, de préférence un visage humain.
  13. Document physique (1) selon la revendication 11 ou 12, caractérisé en ce que le motif de perforation consiste en une pluralité de trous, chaque trou présentant un diamètre moyen qui est compris entre 50 microns et 200 microns.
  14. Document physique (1) selon l'une quelconque des revendications 11 à 13, caractérisé en ce qu'il s'agit d'un document d'identité personnelle (1), de préférence une carte d'identité ou un passeport ou un permis de conduire.
EP18194637.7A 2018-09-14 2018-09-14 Document doté d'une caractéristique de sécurité Active EP3623165B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP18194637.7A EP3623165B1 (fr) 2018-09-14 2018-09-14 Document doté d'une caractéristique de sécurité
BE20195608A BE1027353B1 (fr) 2018-09-14 2019-09-13 Document comportant une caracteristique de securite

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18194637.7A EP3623165B1 (fr) 2018-09-14 2018-09-14 Document doté d'une caractéristique de sécurité

Publications (2)

Publication Number Publication Date
EP3623165A1 EP3623165A1 (fr) 2020-03-18
EP3623165B1 true EP3623165B1 (fr) 2020-09-09

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP18194637.7A Active EP3623165B1 (fr) 2018-09-14 2018-09-14 Document doté d'une caractéristique de sécurité

Country Status (2)

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EP (1) EP3623165B1 (fr)
BE (1) BE1027353B1 (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1004433C2 (nl) 1996-11-05 1998-05-08 Iai Bv Beveiligingskenmerk in de vorm van een perforatiepatroon.
NL1026418C2 (nl) * 2004-06-14 2005-12-15 Nl Bank Nv Authenticiteitkenmerk.
DE102007025860A1 (de) * 2007-06-01 2008-12-04 Ovd Kinegram Ag Sicherheitsdokument und Verfahren zu dessen Herstellung
WO2013143006A1 (fr) * 2012-03-29 2013-10-03 Orell Füssli Sicherheitsdruck Ag Caractéristique de sécurité basée sur des perforations
NL2011352C2 (en) 2013-08-29 2015-03-10 Morpho B V Identification assembly for an identity document.
DE102017000124A1 (de) * 2017-01-09 2018-07-12 Giesecke+Devrient Currency Technology Gmbh Sicherheitselement mit gelaserter Oberfläche

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
BE1027353B1 (fr) 2021-10-15
EP3623165A1 (fr) 2020-03-18
BE1027353A1 (fr) 2021-01-13

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