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EP3319812B1 - Élément de sécurité et support de données - Google Patents

Élément de sécurité et support de données Download PDF

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Publication number
EP3319812B1
EP3319812B1 EP16741533.0A EP16741533A EP3319812B1 EP 3319812 B1 EP3319812 B1 EP 3319812B1 EP 16741533 A EP16741533 A EP 16741533A EP 3319812 B1 EP3319812 B1 EP 3319812B1
Authority
EP
European Patent Office
Prior art keywords
layer
security element
security
semitransparent
functional layer
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
EP16741533.0A
Other languages
German (de)
English (en)
Other versions
EP3319812A1 (fr
Inventor
Björn Teufel
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.)
Giesecke and Devrient Currency Technology GmbH
Original Assignee
Giesecke and Devrient Currency Technology 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
Application filed by Giesecke and Devrient Currency Technology GmbH filed Critical Giesecke and Devrient Currency Technology GmbH
Publication of EP3319812A1 publication Critical patent/EP3319812A1/fr
Application granted granted Critical
Publication of EP3319812B1 publication Critical patent/EP3319812B1/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
    • B42D25/20—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
    • B42D25/324—Reliefs
    • 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
    • B42D25/351—Translucent or partly translucent parts, e.g. windows
    • 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
    • B42D25/425—Marking by deformation, e.g. embossing
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
    • G07D7/003—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using security elements

Definitions

  • the invention relates to a security element for securing a value document or a security paper.
  • the invention further relates to a data carrier, in particular a value document or a security paper, which is equipped with the security element.
  • Data carriers in particular value documents or security papers, are usually provided with security elements for security purposes, which permit verification of the authenticity of the data carrier and at the same time serve as protection against unauthorized reproduction of the data carrier.
  • security elements come e.g. Foil security elements into consideration, which have a foil substrate or plastic substrate and are applied by means of an adhesive layer on the data carrier.
  • a window area may e.g. be formed by means of a continuous recess in a (paper) substrate of a value document.
  • a window area may e.g. be created by means of congruent recesses in the applied on the front and back of the polymer substrate opaque print layers.
  • the WO 95/10420 A1 describes a document of value in which the carrier is provided with a window-like opening, which is closed with an at least partially transparent cover film, wherein the cover, in particular in the region of the window-like opening with additional security features, such as diffraction structures, can be provided.
  • the WO 2005/025891 A2 describes a data carrier with a foil security element, wherein both the foil security element and the data carrier have a breakthrough area; the aperture areas preferably overlap at least partially, and more preferably they are congruent.
  • the perforation region in the data carrier is covered by another side facing away from the side of the data carrier carrying the film security element.
  • the WO 2010/000432 A1 describes a document of value with an opening which is closed on one side with a translucent film.
  • a translucent coating which is preferably made over the entire surface.
  • the coatings are each independently extruded or laminated.
  • the WO 2011/015622 A1 describes a document of value having an opening which is closed on one side with an at least partially translucent or transparent film, wherein on the opposite side of the film of the document of value in the region of the opening and substantially in the region of the film surface is a coating, wherein the coating within the Opening does not exist or essentially does not exist.
  • the WO 2014/108329 A1 describes a method for producing an endless paper web for the production of security and value documents.
  • the paper web is first with a continuous Opening provided. Subsequently, register-accurate application of a film with applied to the paper web security features.
  • Patent document DE 10 2009 031386 A1 discloses features a) to h) apart from the characterizing features of item h).
  • the object of the present invention is to provide a security element by means of which the protection of a data carrier equipped with the same against counterfeiting can be further increased. Another object is to provide a data carrier equipped with the security element.
  • the value document mentioned in the present description can be a banknote, in particular a paper banknote, a polymer banknote or a film composite banknote, a share, a bond, a certificate, a coupon, a check, a high-quality admission ticket, but also an identity card such as a credit card, a bank card, a cash card, an entitlement card, an identity card, or a pass personalization page.
  • a banknote in particular a paper banknote, a polymer banknote or a film composite banknote, a share, a bond, a certificate, a coupon, a check, a high-quality admission ticket, but also an identity card such as a credit card, a bank card, a cash card, an entitlement card, an identity card, or a pass personalization page.
  • a reflection in incident light is, in the sense of this invention, an illumination of the security element from one side and a viewing of the security element from the same side.
  • a reflection in reflected light is thus present, for example, when the front of the security element is illuminated and also viewed.
  • a reflection in the transmitted light is in the sense of this invention an illumination of a security element from one side and a view of the security element from another side, in particular the opposite side.
  • a consideration in transmitted light is thus for example, when the back of the security element is illuminated and the front of the security element is viewed. The light thus shines through the security element.
  • the security element according to the invention can e.g. as a patch or label, as an (endless) strip or as an (endless) thread.
  • the data carrier substrate of the data carrier to be equipped with the security element according to the invention is in particular a paper substrate or a paper-like substrate, a polymer substrate, a paper / film / paper composite substrate or a film / paper / film composite substrate.
  • a security document provided with a window portion may be used in the case of a paper substrate, a paper / foil / paper composite substrate, or a film / paper / foil composite substrate, e.g. be produced by means of a continuous recess within the paper layer (s).
  • the paper layer may be coated by means of a suitable liquid, e.g. be made transparent by means of aqueous sulfuric acid solution in a certain range.
  • a window area may e.g. be created by means of congruent recesses in the applied on the front and back of the polymer substrate opaque print layers.
  • a preferred security element comprises at least one semitransparent functional layer which, on the other hand, has different hues when viewed in incident light on the one hand and when viewed in transmitted light on the other hand.
  • the two different shades are, for example, complementary colors.
  • Such a semitransparent functional layer is based, for example, on a multilayer structure with two semitransparent mirror layers and a dielectric layer disposed between the two semitransparent mirror layers.
  • Such a multi-layered structure, which appears golden when viewed in reflected light and shows a blue hue when viewed in transmitted light is for example from the WO 2011/082761 A1 known.
  • a semitransparent functional layer which has different hues when viewed in incident light on the one hand and when viewed in transmitted light on the other hand may be based on an effect pigment composition.
  • Printed layers based on an effect pigment composition which, when viewed in incident light, show a different color than when viewed in transmitted light, in particular a gold / blue color change, a gold / violet color change, a green / gold / magenta color change, a Violet / green color change or a silver / opaque color change, are eg in the WO 2011/064162 A2 described.
  • the first motif recognizable when viewing the security element front side in the reflected light represents a hologram (ie the first embossing lacquer layer b) and the first semi-transparent functional layer c) form a diffractive relief structure or hologram structure, and this when viewing the security element Rear side recognizable in incident light second motif is based on a micro-optical relief structure, in particular a micromirror arrangement
  • microoptical relief structure in particular a micromirror arrangement.
  • the production of a micro-optical relief structure is known in the art (see, for example, the WO 2014/060089 A2 ).
  • the first motif which can be recognized by the incident light when viewed from the front of the security element is based on a microoptical relief structure, in particular a micromirror arrangement, and the second motif recognizable when viewed in front of the security element back represents a hologram.
  • both the first motif recognizable when viewing the security element front side in incident light and the second motif recognizable when viewed in the reflected light when viewing the security element backside each represent a hologram.
  • both the first motif recognizable when viewing the security element front side in incident light and the second motif recognizable by reflected light when viewing the security element back are respectively based on a microoptical relief structure, in particular a micromirror arrangement ,
  • the first motif, the second motif and the third motif independently of each other in the form of a Pattern or an image, in the form of characters or a string or in the form of an encoding.
  • the printed layer d) applied to the first semitransparent functional layer forms a hidden third motif that is not recognizable when viewing the security element front side in incident light and is hidden by the first semitransparent functional layer c) Rear side of the security element is not recognizable in incident light and is covered by the second semitransparent functional layer f) and that can be seen when viewing the security element in transmitted light both from the front side and from the rear side.
  • the third motif may e.g. by gravure printing, flexographic printing, screen printing or by an inkjet process, preferably by means of intaglio printing.
  • the third motif may e.g. in the form of a character or a string, in the form of a coding, in the form of a pattern, a picture or a portrait.
  • FIG. 1 shows a document of value 1, in the present example a banknote, in plan view.
  • the value document 1 is based on a paper substrate and has a window area 2 (shown in dashed lines).
  • the window area 2 can, for example, by means of a continuous generated by punching Aperture can be obtained in the paper substrate.
  • the value document 1 is provided on its front side with a security element 3, which covers the window area 2 of the value document 1 on one side.
  • FIG. 2 shows the value document 1 of FIG. 1 in cross-sectional view (along in the FIG. 1 shown line A-A ').
  • the value document 1 is based on a paper substrate 4, which has a breakthrough recess 2.
  • the recess 2 was produced by stamping and is present in the paper substrate 4 when viewed in plan view in the form of a square with the dimensions 1cm x 1cm (the dimensions can be chosen arbitrarily, as well as the shape of the window or the recess).
  • the value document 4 is provided on the front side with a film security element 3, which covers the breakthrough recess 2 on one side.
  • the film security element 3 is fixed on the paper substrate 4 by means of a marginal adhesive layer (not shown in the figure).
  • FIG. 3 shows the window area 2 of the value document 1 according to an embodiment when viewing the front side in incident light. The viewer perceives a metallic hologram motif 5.
  • FIG. 4 shows the window area 2 of the value document 1 according to the embodiment when viewing the rear side in incident light.
  • the viewer perceives the areas 6 and 7 in the form of a golden color.
  • the area 6 forms the denomination of the banknote "50" and appears to the viewer as compared to the background 7 in the form of a deceptively real, three-dimensional curved surface.
  • FIG. 5 shows the window area 2 of the value document 1 when viewed in transmitted light, from the front or the back.
  • the observer perceives the white area 8 in the form of a blue background in front of which the blackened characters 9 (which in the example represent the denomination "50" of the banknote) stand out clearly.
  • FIGS. 6 to 10 illustrate an example of the preparation of in the FIGS. 1 to 5 shown security element 3.
  • FIG. 6 shows the production of a first security element part, in which on a film substrate 10 (for example, a polyethylene terephthalate film) first an embossing lacquer layer 11 is applied.
  • the embossing lacquer layer 11 may for example be based on a UV-curable lacquer which is printed on the film substrate 10, then provided with an embossed pattern and finally UV-crosslinked. Thereafter, a motif is formed on the embossing lacquer layer 11 by means of an Al / SiO 2 / Al layer sequence (in the figure, reference numerals 12 and 14 each denote an Al layer, reference numeral 13 denotes an SiO 2 layer).
  • the layer sequence 12 to 14 formed motif can be done for example by means of a washing technique known in the art, in which the carrier film 10 and the embossing lacquer layer 11 applied thereto first with an activatable with suitable solvents ink ("wash") in the form of characters is printed, is successively provided with an aluminum layer, with a SiO 2 layer and with another aluminum layer and finally the ink together with the directly above areas of the Al, SiO 2 and Al layers by washing with a Liquid is removed to produce coating-free areas in the form of the characters.
  • Suitable inks are for example in the WO 97/23357 described.
  • photoresist coatings in the security element production is for example from EP 2 049 345 B1 known.
  • the Al layer 12, the SiO 2 layer 13 and the Al layer 14 together form a semitransparent functional layer 15 which, when viewed in reflected light, appears gold-colored and shows a blue hue when viewed in transmitted light.
  • a semitransparent functional layer 15 which, when viewed in reflected light, appears gold-colored and shows a blue hue when viewed in transmitted light.
  • Such a multi-layered structure, which appears golden when viewed in reflected light and shows a blue hue when viewed in transmitted light is for example from the WO 2011/082761 A1 known.
  • the semitransparent functional layer 15 is provided by gravure printing with a black print layer 16 forming the hidden motif.
  • the in the FIGS. 6 and 7 shown semitransparent functional layer 15 forms in the FIG. 4 shown motif.
  • the observer perceives the semitransparent functional layer 15 metallically golden when viewing the security element 3 in reflected light through the layers 10 and 11 in the form of the regions 6 and 7.
  • the area 6 forms the denomination of the banknote "50" and appears to the viewer as compared to the background 7 in the form of a deceptively real, three-dimensional curved surface.
  • the three-dimensional impression can be generated thereby be provided that the embossing lacquer layer 11 with a micro-optical relief structure.
  • the production of a micro-optical relief structure is known in the art (see, for example, the WO 2014/060089 A2 ).
  • FIG. 8 shows the production of a second security element part, in which on a film substrate 17 (eg, a polyethylene terephthalate film) first an embossing lacquer layer 18 is applied.
  • the embossing lacquer layer 18 may, for example, be based on a UV-curing lacquer which is printed on the film substrate 17, then provided with an embossed pattern and finally UV-crosslinked.
  • a motif is subsequently produced by means of a semitransparent Al layer 19. The exact generation of the motif can be effected, for example, by means of a washing process, by laser demetallization or by an etching process, as described above.
  • the in the FIG. 8 shown semitransparent functional layer 19 forms in the FIG. 3 shown hologram motif 5.
  • the viewer perceives the semitransparent functional layer 19 when viewing the security element 3 in incident light through the layers 17 and 18 through shiny metallic shiny.
  • the production of the hologram motif 5 is based on equipping the embossing lacquer layer 18 with a diffractive relief structure.
  • FIG. 9 shows the step of gluing in the FIG. 7 shown first security element part with the in the FIG. 8
  • the bonding of the two security element parts is carried out register-accurate, so that the print layer 16 forming the hidden motif on the one hand passes through the semitransparent functional layer 15 and on the other hand by the semitransparent functional layer 19 is obscured.
  • the hidden layer forming the print layer 16 takes the viewer in transmitted light, both from the front and from the back, in the form of in the FIG. 5 shown black sign 9 against blue background 8 true.
  • the blue background 8 is based on the semitransparent functional layer 15, which appears gold-colored when viewed in reflected light and shows a blue hue when viewed in transmitted light (and which consists of the A1 layer 12, the SiO 2 layer 13 and the Al Layer 14 is composed).
  • the security element can be provided with an adhesive layer 22 for bonding to a value-added substrate or security paper substrate via an optional primer layer 21.
  • FIG. 10 shows the case that the adhesive layer 22 is attached to the film substrate 17.
  • the adhesive layer 22 could be attached to the film substrate 10 via an optional primer layer.
  • film substrate 17 only optional, ie the film substrate 17 is not mandatory.
  • the Indian FIG. 9 Layer structure shown which consists of a first security element part according to the FIG. 7 and a second security element part according to FIG. 8 can also be obtained that the second-security element part according to the FIG. 8 is equipped with a removable film substrate 17.
  • the detachable film substrate 17 may be of the type described in US Pat FIG. 9 be removed before the Adhesive layer 22 over an optionally present primer layer 21 applies.
  • the security element according to the FIG. 10 put that in the FIG. 2
  • the observer perceives the motif generated by the semitransparent functional layer 15 (see FIG FIG. 4 ).
  • the viewer perceives the motif generated by the semitransparent functional layer 19 (see FIG FIG. 3 ).
  • the viewer perceives the hidden print information 16 (see FIG. 5 ).

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  • Engineering & Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Manufacturing & Machinery (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Credit Cards Or The Like (AREA)

Claims (16)

  1. Élément de sécurité destiné à la sécurisation d'un document de valeur ou d'un papier de sécurité, l'élément de sécurité ayant une disposition en couches dont la succession de couches est la suivante :
    a) un premier substrat formant film ;
    b) une première couche de vernis de gaufrage ;
    c) une première couche fonctionnelle semi-transparente ;
    d) une couche imprimée appliquée sur la première couche fonctionnelle semi-transparente ;
    e) une couche adhésive ;
    f) une deuxième couche fonctionnelle semi-transparente ;
    g) une deuxième couche de vernis de gaufrage ;
    h) un deuxième substrat formant film ; cependant que
    - l'observation de l'élément de sécurité en posant le regard sur le premier substrat formant film a) depuis la face opposée aux couches de b) à h) définit l'observation de la face avant de l'élément de sécurité, et l'observation de l'élément de sécurité en posant le regard sur le deuxième substrat formant film h) depuis la face opposée aux couches de a) à g) définit l'observation de la face arrière de l'élément de sécurité ;
    - la première couche fonctionnelle semi-transparente c) constitue un premier motif reconnaissable en lumière incidente lors d'une observation de la face avant de l'élément de sécurité ;
    - la deuxième couche fonctionnelle f), semi-transparente, constitue un deuxième motif reconnaissable en lumière incidente lors d'une observation de la face arrière de l'élément de sécurité ;
    caractérisé en ce que
    - la couche imprimée d) appliquée sur la première couche fonctionnelle semi-transparente constitue un troisième motif, caché, lequel, lors de l'observation de la face avant de l'élément de sécurité, n'est pas reconnaissable en lumière incidente et est dissimulé par la première couche fonctionnelle semi-transparente c), et lequel, lors de l'observation de la face arrière de l'élément de sécurité, n'est pas reconnaissable en lumière incidente et est dissimulé par la deuxième couche fonctionnelle semi-transparente f), et lequel, lors de l'observation de l'élément de sécurité en lumière transmise, est reconnaissable tant depuis la face avant que depuis la face arrière.
  2. Élément de sécurité selon la revendication 1, cependant que l'élément de sécurité peut être obtenu par le collage de deux parties distinctes d'élément de sécurité au moyen de la couche adhésive e), cependant que la première partie d'élément de sécurité comprend les couches de a) à d), et la deuxième partie d'élément de sécurité comprend les couches de f) à h), cependant que, après le collage, éventuellement le deuxième substrat formant film h) est détaché de la disposition en couches obtenue.
  3. Élément de sécurité selon la revendication 1 ou 2, cependant que la deuxième couche fonctionnelle semi-transparente f) est une couche miroir semi-transparente, en particulier un métal choisi dans le groupe constitué par A1, Ag, Ni, Cr, Cu, Au et un alliage d'un ou de plusieurs des éléments mentionnés ci-dessus.
  4. Élément de sécurité selon la revendication 3, cependant que la deuxième couche fonctionnelle semi-transparente f) est basée sur A1 ou sur un alliage d'Al.
  5. Élément de sécurité selon une des revendications de 1 à 4, cependant que la première couche fonctionnelle semi-transparente c) présente lors de l'observation en lumière incidente d'une part, et lors de l'observation en lumière transmise d'autre part, différentes teintes.
  6. Élément de sécurité selon la revendication 5, cependant que la première couche fonctionnelle semi-transparente c) comporte une disposition multicouche, laquelle a deux couches miroir semi-transparentes et une couche diélectrique agencée entre les deux couches miroir semi-transparentes et laquelle, en particulier lors de l'observation en lumière incidente, apparaît dorée, et laquelle montre une teinte bleue lors de l'observation en lumière transmise.
  7. Élément de sécurité selon la revendication 6, cependant que les deux couches miroir semi-transparentes sont choisies en A1 ou en Ag et que la couche diélectrique est une couche de SiO2.
  8. Élément de sécurité selon la revendication 7, cependant que chacune des deux couches miroir semi-transparentes est basée sur A1 et présente une épaisseur de couche comprise entre 5 nm et 20 nm, de préférence comprise entre 10 nm et 14 nm, et que la couche diélectrique SiO2 présente une épaisseur de couche comprise entre 50 nm et 450 nm, de préférence comprise entre 80 nm et 260 nm.
  9. Élément de sécurité selon la revendication 7, cependant que chacune des deux couches miroir semi-transparentes est basée sur Ag et présente une épaisseur de couche comprise entre 15 nm et 25 nm, et que la couche diélectrique SiO2 présente une épaisseur de couche comprise entre 50 nm et 450 nm, de préférence comprise entre 80 nm et 260 nm.
  10. Élément de sécurité selon la revendication 5, cependant que la première couche fonctionnelle semi-transparente c) est basée sur une couche pouvant être obtenue par impression et ayant une composition de pigments à effets.
  11. Élément de sécurité selon une des revendications de 1 à 10, cependant que la première couche de vernis de gaufrage b) et la première couche fonctionnelle semi-transparente c) constituent une première structure optiquement variable, en particulier une structure en relief diffractive ou une structure en relief micro-optique, et que la deuxième couche de vernis de gaufrage g) et la deuxième couche fonctionnelle semi-transparente f) constituent une deuxième structure optiquement variable, en particulier une structure en relief diffractive ou une structure en relief micro-optique, cependant que la deuxième structure optiquement variable est choisie indépendamment de la première structure optiquement variable.
  12. Élément de sécurité selon la revendication 11, cependant que la première couche de vernis de gaufrage b) et la première couche fonctionnelle semi-transparente c) constituent une structure en relief diffractive, et que la deuxième couche de vernis de gaufrage g) et la deuxième couche fonctionnelle semi-transparente f) constituent une structure en relief micro-optique, ou inversement.
  13. Élément de sécurité selon une des revendications de 1 à 12, cependant que la disposition en couches comporte, en plus des couches a), b), c), d), e), f), g) et h), une couche adhésive i) pour le collage de l'élément de sécurité avec un document de valeur ou papier de sécurité.
  14. Élément de sécurité selon une des revendications de 1 à 13, cependant que le troisième motif, caché, est en rapport de sens avec le premier motif et/ou avec le deuxième motif.
  15. Support de données, en particulier un document de valeur ou un papier de sécurité, qui est équipé de l'élément de sécurité selon une des revendications de 1 à 14.
  16. Support de données selon la revendication 15, cependant que le support de données est basé sur un substrat de support de données ayant une zone fenêtre et que l'élément de sécurité est agencé dans la zone fenêtre du substrat de support de données.
EP16741533.0A 2015-07-10 2016-07-08 Élément de sécurité et support de données Active EP3319812B1 (fr)

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DE102015008971.4A DE102015008971A1 (de) 2015-07-10 2015-07-10 Sicherheitselement und Datenträger
PCT/EP2016/001183 WO2017008897A1 (fr) 2015-07-10 2016-07-08 Élément de sécurité et support de données

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EP3319812A1 EP3319812A1 (fr) 2018-05-16
EP3319812B1 true EP3319812B1 (fr) 2019-09-18

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CN (1) CN107848323B (fr)
DE (1) DE102015008971A1 (fr)
WO (1) WO2017008897A1 (fr)

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DE102018003602A1 (de) * 2018-05-03 2019-11-07 Giesecke+Devrient Currency Technology Gmbh Retroreflektierende Folie, Folie, Datenträger und Verwendung
CA3116462A1 (fr) 2018-10-25 2020-04-30 Basf Se Compositions comprenant des nanoplaquettes d'argent
DE102018008549A1 (de) * 2018-10-31 2020-04-30 Giesecke+Devrient Currency Technology Gmbh Sicherheitselement und mit dem Sicherheitselement ausgestatteter Datenträger
EP3914458B1 (fr) 2019-01-21 2022-12-21 Basf Se Élément de sécurité
CA3135776A1 (fr) 2019-05-06 2020-11-12 Nikolay A GRIGORENKO Compositions comprenant des nanoplaquettes d'argent
AT522774B1 (de) * 2019-09-11 2021-01-15 Hueck Folien Gmbh Sicherheitselement für Wertpapiere oder Sicherheitspapiere mit einer Trägerfolie
EP4139070A1 (fr) 2020-04-23 2023-03-01 Basf Se Compositions comprenant des particules de métal de transition en forme de plaquettes
DE102020005268A1 (de) * 2020-08-27 2022-03-03 Giesecke+Devrient Currency Technology Gmbh Optisch variables Sicherheitselement
US20240309174A1 (en) 2021-02-03 2024-09-19 Basf Se Compositions, comprising silver nanoplatelets
DE102021002448A1 (de) * 2021-05-07 2022-11-10 Giesecke+Devrient Currency Technology Gmbh Mehrschichtkörper und Verfahren zum Herstellen desselben
CN117321151A (zh) 2021-05-12 2023-12-29 巴斯夫欧洲公司 包含片状过渡金属颗粒的组合物
WO2023072740A1 (fr) 2021-10-26 2023-05-04 Basf Se Procédé pour la production d'éléments d'interférence
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CN107848323B (zh) 2019-10-11
DE102015008971A1 (de) 2017-01-12
EP3319812A1 (fr) 2018-05-16
WO2017008897A1 (fr) 2017-01-19
CN107848323A (zh) 2018-03-27

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