EP3643511A1 - Élément de sécurité et support de données équipé de l'élément de sécurité - Google Patents

Élément de sécurité et support de données équipé de l'élément de sécurité Download PDF

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Publication number
EP3643511A1
EP3643511A1 EP19020558.3A EP19020558A EP3643511A1 EP 3643511 A1 EP3643511 A1 EP 3643511A1 EP 19020558 A EP19020558 A EP 19020558A EP 3643511 A1 EP3643511 A1 EP 3643511A1
Authority
EP
European Patent Office
Prior art keywords
layer
security element
viewed
transparent
element according
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.)
Granted
Application number
EP19020558.3A
Other languages
German (de)
English (en)
Other versions
EP3643511B1 (fr
Inventor
Giselher Dorff
Kai Herrmann SCHERER
Thomas Mang
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 EP3643511A1 publication Critical patent/EP3643511A1/fr
Application granted granted Critical
Publication of EP3643511B1 publication Critical patent/EP3643511B1/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
    • B42D25/30—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
    • B42D25/30—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
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/355—Security threads
    • 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

Definitions

  • the invention relates to a security element for securing documents of value, comprising, in order, a carrier substrate, an embossing lacquer layer, a Cr layer serving as an adhesion promoter layer, and a semi-transparent layer structure which conveys a different color impression to a viewer when viewed in incident light and when viewed in transmitted light .
  • the invention further relates to a data carrier with such a security element.
  • Data carriers such as documents of value or identity documents, or other valuable objects, such as branded articles, are often provided with security elements for security purposes, which allow the authenticity of the data carriers to be checked and which at the same time serve as protection against unauthorized reproduction.
  • Security elements with viewing angle-dependent effects play a special role in ensuring authenticity, since these cannot be reproduced even with the most modern copying machines.
  • the security elements are equipped with optically variable elements that convey a different image impression to the viewer from different viewing angles and, for example, show a different color or brightness impression and / or a different graphic motif depending on the viewing angle.
  • the color shift effect in such thin-film elements is based on viewing angle-dependent interference effects due to multiple reflections in the different ones Sub-layers of the element.
  • the path difference of the light reflected from the different layers depends on the one hand on the optical thickness of a dielectric spacer layer, which defines the distance between a semi-transparent absorber layer and a reflection layer, and on the other hand varies with the respective viewing angle. Since the path difference is of the order of magnitude of the wavelength of visible light, an angle-dependent color impression results for the viewer due to the extinction and amplification of certain wavelengths.
  • a suitable choice of material and thickness of the dielectric spacer layer enables a multitude of different color shift effects to be designed.
  • security elements with multilayer thin-film elements which appear in a first color when viewed in incident light, ie in reflection, and appear in a second color when viewed in transmitted light, ie in transmission.
  • the WO 2011/082761 A1 describes a thin-film element with a multi-layer structure that appears golden when viewed in incident light and blue when viewed in transmitted light.
  • the multilayer structure is based on two semi-transparent mirror layers and a dielectric spacer layer arranged between the two mirror layers.
  • the object of the invention is to provide a security element of the type mentioned at the outset which is improved with regard to the production.
  • viewing in incident light is illuminating the data carrier from one side and viewing the data carrier from the same side.
  • An observation in incident light is thus, for example, when the front of the data carrier is illuminated and also viewed.
  • viewing in transmitted light is illuminating a data carrier from one side and viewing the data carrier from another side, in particular the opposite side.
  • An observation in transmitted light is thus, for example, when the back of the data carrier is illuminated and the front of the data carrier is viewed. The light shines through the disk.
  • the data carrier substrate of the data carrier for example a document of value substrate, such as a banknote substrate, 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 value document or security paper provided with a window area can be produced in the case of a paper substrate, a paper / film / paper composite substrate or a film / paper / film composite substrate, for example by means of a continuous recess within the paper layer (s).
  • the paper layer can be made transparent in a certain area by means of a suitable liquid, for example by means of an aqueous sulfuric acid solution.
  • a Window area can be generated, for example, by means of congruent cutouts in the opaque printing layers applied to the front and back of the polymer substrate.
  • a carrier substrate such as a film, having an embossing lacquer layer with an embossed relief structure
  • a semi-transparent layer structure by means of a thin Cr layer as an adhesion promoter layer.
  • the invention is based on the knowledge that the resistance and adhesion of a semitransparent layer structure arranged on a (UV) embossing lacquer layer is very low and is significantly increased by the presence of a thin Cr layer.
  • the semi-transparent layer structure is formed in particular by means of vapor deposition and is preferably an Al / SiO 2 / Al layer structure or an Ag / SiO 2 / Ag layer structure.
  • Such a multi-layer structure which appears golden when viewed in incident light and shows a blue hue when viewed in transmitted light, is from, for example WO 2011/082761 A1 known.
  • the semitransparent layer structure which gives a viewer a different color impression when viewed in reflected light and when viewed in transmitted light, is based on two semitransparent metallic layers and a dielectric spacer layer arranged between the two semitransparent metallic layers, it is relative to the one obtained Optical properties are particularly advantageous if the sum of the layer thicknesses of the Cr layer and the semitransparent metallic layer of the semitransparent layer structure adjacent to the Cr layer corresponds to the layer thickness of the semitransparent metallic layer of the semitransparent layer structure remote from the Cr layer.
  • Platelet-shaped metal pigments suitable for producing the reflection layer are from the WO 2013/186167 A2 , WO 2010/069823 A1 , WO 2005/051675 A2 (see for example the description on page 11, line 10, to page 12, penultimate paragraph) and WO 2011/064162 A2 known.
  • the layer structure of the security element according to the invention has semitransparent areas, which a viewer can observe when viewed in incident light and when viewing convey a different color impression in transmitted light and which are formed in the form of patterns, characters or a coding.
  • the security element according to the invention can in particular be designed as a so-called laminate film, in which the carrier or the carrier substrate is firmly anchored to the embossing lacquer layer.
  • the laminate film which is in particular in the form of a patch, a strip or a thread, can then be applied together with the carrier to a value document substrate.
  • a window or a cutout in the value document substrate can be closed in this way.
  • the security element according to the invention can furthermore be designed as a so-called transfer film, in which the carrier or the carrier substrate is not firmly anchored to the embossing lacquer layer, but can be detached from the embossing lacquer layer.
  • the transfer film which is in particular in the form of a patch, a strip or a thread, can be applied to a value document substrate without the carrier substrate of the transfer film remaining on the value document substrate.
  • Such a procedure is particularly suitable in the case that the document of value substrate to be equipped with the security element is a polymer substrate. In this way, the layer thickness in the product obtained is not too high.
  • a UV-curing embossing lacquer can advantageously be used as the embossing lacquer, but a thermosetting embossing lacquer can also be used.
  • the thin Cr layer serving as an adhesion promoter advantageously has a layer thickness in a range from 0.1 nm to 5 nm.
  • a layer thickness in a range from 0.2 nm to 4 nm is particularly preferred.
  • the security element according to the invention can additionally be equipped with magnetic and / or fluorescent security features.
  • the invention further relates to a data carrier with a security element of the type described above.
  • the data carrier can be a document of value, such as a banknote, in particular a paper banknote, a polymer banknote or a composite film banknote, a share, a bond, a certificate or a voucher , a check, a high-quality admission ticket, but also an identification card such as a credit card, a bank card, a cash payment card, an authorization card, an identity card or a passport personalization page.
  • FIG. 1 shows a schematic representation of a bank note 1 with a transparent window area 3 (shown in dashed lines), which is provided with a security element 2 according to the invention in the form of a patch.
  • the banknote 1 is based on a paper substrate 4 which has a continuous recess in the area 3.
  • the continuous recess is covered on at least one side of the paper substrate 4 by the security element according to the invention, which is present as a laminate film.
  • the paper substrate can optionally be provided with an additional transparent film.
  • the additional transparent film can cover, for example, at least the area of the continuous recess.
  • the in the Figure 1 The banknote shown has the denomination "20" generated by printing in the lower left area.
  • the Figure 2 shows a security element 2 according to the invention in accordance with a first embodiment in a cross-sectional view.
  • the security element 2 is semitransparent in the areas designated by the letter "A", the viewer perceives these areas when viewed in incident light in the form of a gold-colored metallization, when viewed in transmitted light, the viewer perceives these areas in a blue hue.
  • the security element 2 is opaque, metallic, both when viewed in incident light and when viewed from above Viewing in transmitted light.
  • the security element 2 is transparent in the areas outside the areas “A” and “B”.
  • the security element 2 is arranged in the window area of the paper substrate 4 of the bank note 1 by means of an adhesive layer 5, for example a heat seal lacquer.
  • the carrier 6 in the form of a transparent plastic film, for example a PET film, has an embossing lacquer 7.
  • the relief structure (ie the surface) of the embossing lacquer 7 contains, for example, a microstructure.
  • a thin Cr layer 8 serving as an adhesion promoter layer with a layer thickness of 1 nm.
  • Semitransparent thin-film elements are present on the left and on the right side, which can be viewed by the viewer when viewed in incident light and when viewed in transmitted light convey a different color impression, in the present case these are thin-film elements which each have two semi-transparent mirror layers (with the reference numbers 9 and 11) and a dielectric spacer layer 10 arranged between the two mirror layers.
  • Such a thin-film element which appears golden in reflected light and blue in transmitted light, is in the WO 2011/082761 A1 described.
  • the semitransparent mirror layer 9 is an Al layer with a layer thickness of 9 nm.
  • the semitransparent mirror layer 11 is also an Al layer and has a layer thickness of 10 nm.
  • the layer thickness of the Al layer 9 is thus reduced by the layer thickness of the Cr layer 8 serving as an adhesion promoter layer.
  • the dielectric spacer layer 10 is an SiO 2 layer and has a layer thickness of 125 nm.
  • the opaque region 12 is formed by an Al metallization with a comparatively high layer thickness.
  • the semi-transparent areas with the letter “A” form a background surrounding the number "20" when the bank note 1 is viewed in plan view.
  • the opaque, reflective area "B" formed by an Al layer 12 generates the number "2" when the bank note 1 is viewed in plan view.
  • the security element 2 is transparent; these transparent areas generate the number "0" when the bank note 1 is viewed in plan view.
  • the security element 2 is protected on the top by a protective lacquer 13.
  • the security element 2 shows in the areas "A" and / or "B” e.g. interesting three-dimensional arch effects.
  • the Figure 3 shows a further security element 22 according to the invention in accordance with a second exemplary embodiment in a cross-sectional view.
  • the security element 22 is semitransparent in the areas designated by the letter "A", the viewer perceives these areas when viewed in incident light in the form of a gold-colored metallization, when viewed in transmitted light, the viewer perceives these areas in a blue hue.
  • the security element 22 is opaque, metallic, both when viewed in incident light and when viewed in transmitted light.
  • the security element 22 is transparent.
  • the security element 22 is arranged in the window area of the paper substrate 4 of the bank note 1 by means of an adhesive layer 5, for example a heat seal lacquer.
  • a protective lacquer layer 13 is present adjacent to the adhesive layer 5.
  • the semitransparent mirror layer 9 is an Al layer with a layer thickness of 9 nm.
  • the semitransparent mirror layer 11 is also an Al layer and has a layer thickness of 10 nm.
  • the dielectric spacer layer 10 is an SiO 2 layer and has a layer thickness of 125 nm.
  • the opaque region 12 is formed by an Al metallization with a comparatively high layer thickness.
  • the semi-transparent areas with the letter “A” form a background surrounding the number "20" when the bank note 1 is viewed in plan view.
  • the opaque, reflective area "B" formed by an Al layer 12 generates the number "2" when the bank note 1 is viewed in plan view.
  • the security element 22 is transparent; these transparent areas generate the number "0" when the bank note 1 is viewed in plan view.
  • the carrier 6 in the form of a transparent plastic film, e.g. a PET film has an embossing lacquer 7.
  • the relief structure (i.e. the surface) of the embossing lacquer 7 contains e.g. a microstructure.
  • the embossing lacquer 7 is followed by a thin Cr layer 8, serving as an adhesion promoter layer, with a layer thickness of 1 nm.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Credit Cards Or The Like (AREA)
  • Laminated Bodies (AREA)
EP19020558.3A 2018-10-15 2019-10-07 Élément de sécurité et support de données équipé de l'élément de sécurité Active EP3643511B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018008147.9A DE102018008147A1 (de) 2018-10-15 2018-10-15 Sicherheitselement und mit dem Sicherheitselement ausgestatteter Datenträger

Publications (2)

Publication Number Publication Date
EP3643511A1 true EP3643511A1 (fr) 2020-04-29
EP3643511B1 EP3643511B1 (fr) 2022-07-06

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EP (1) EP3643511B1 (fr)
DE (1) DE102018008147A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022128152A1 (fr) * 2020-12-17 2022-06-23 Giesecke+Devrient Currency Technology Gmbh Support de données comportant un substrat composite possédant un élément de sécurité disposé dans une zone de visualisation en transparence
CN115320274A (zh) * 2021-05-10 2022-11-11 捷德货币技术有限责任公司 具有体积全息图和附加效果的防伪元件
CN115366557A (zh) * 2021-05-18 2022-11-22 捷德货币技术有限责任公司 有价文件和用于制造有价文件的方法
EP4306328A1 (fr) * 2022-07-15 2024-01-17 Hueck Folien Gesellschaft m.b.H. Élément de sécurité
EP4306329A1 (fr) * 2022-07-15 2024-01-17 Hueck Folien Gesellschaft m.b.H. Élément de sécurité

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022002765A1 (de) 2022-07-29 2024-02-01 Giesecke+Devrient Currency Technology Gmbh Sicherheitselement und mit dem Sicherheitselement ausgestattetes Wertdokument

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WO2005051675A2 (fr) 2003-11-14 2005-06-09 Printetch Limited Impression
EP1798055A2 (fr) * 2005-12-13 2007-06-20 HUECK Folien Ges.m.b.H. Elément de sécurité et caractéristiques de sécurité à effets de couleurs métalliques
WO2010069823A1 (fr) 2008-12-19 2010-06-24 Basf Se Flocons d'aluminium minces
WO2011064162A2 (fr) 2009-11-27 2011-06-03 Basf Se Compositions de revêtement destinées à des éléments de sécurité et à des hologrammes
WO2011082761A1 (fr) 2009-12-14 2011-07-14 Giesecke & Devrient Gmbh Elément à couche mince de couleur dorée présentant une structure multicouche
WO2013186167A2 (fr) 2012-06-14 2013-12-19 Basf Se Procédé destiné à fabriquer des éléments de sécurité et des hologrammes
DE102014001842A1 (de) * 2014-02-11 2015-08-13 Giesecke & Devrient Gmbh Verfahren zum Herstellen eines Sicherheitselements mit Negativschrift und daraus erhältliches Sicherheitselement
WO2016096086A1 (fr) * 2014-12-15 2016-06-23 Hueck Folien Ges.M.B.H. Élément de sécurité à effet de changement de couleur et caractéristiques de fluorescence, procédé de fabrication et utilisation de celui-ci
DE102017106545A1 (de) * 2017-03-27 2018-09-27 Ovd Kinegram Ag Verfahren zur Herstellung eines optischen Sicherheitsmerkmals sowie ein Sicherheitselement und ein Sicherheitsdokument

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DE10319232A1 (de) * 2003-04-28 2004-11-18 Giesecke & Devrient Gmbh Flächiges Sicherheitselement und Herstellungsverfahren für dasselbe
AT502021B1 (de) * 2005-06-01 2007-01-15 Hueck Folien Gmbh Sicherheitselemente mit funktionsschichten und verfahren zu deren herstellung
DE102014001688A1 (de) * 2014-02-07 2015-08-13 Giesecke & Devrient Gmbh Herstellung eines Sicherheitselements mit Farbänderungseigenschaften

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005051675A2 (fr) 2003-11-14 2005-06-09 Printetch Limited Impression
EP1798055A2 (fr) * 2005-12-13 2007-06-20 HUECK Folien Ges.m.b.H. Elément de sécurité et caractéristiques de sécurité à effets de couleurs métalliques
WO2010069823A1 (fr) 2008-12-19 2010-06-24 Basf Se Flocons d'aluminium minces
WO2011064162A2 (fr) 2009-11-27 2011-06-03 Basf Se Compositions de revêtement destinées à des éléments de sécurité et à des hologrammes
WO2011082761A1 (fr) 2009-12-14 2011-07-14 Giesecke & Devrient Gmbh Elément à couche mince de couleur dorée présentant une structure multicouche
WO2013186167A2 (fr) 2012-06-14 2013-12-19 Basf Se Procédé destiné à fabriquer des éléments de sécurité et des hologrammes
DE102014001842A1 (de) * 2014-02-11 2015-08-13 Giesecke & Devrient Gmbh Verfahren zum Herstellen eines Sicherheitselements mit Negativschrift und daraus erhältliches Sicherheitselement
WO2016096086A1 (fr) * 2014-12-15 2016-06-23 Hueck Folien Ges.M.B.H. Élément de sécurité à effet de changement de couleur et caractéristiques de fluorescence, procédé de fabrication et utilisation de celui-ci
DE102017106545A1 (de) * 2017-03-27 2018-09-27 Ovd Kinegram Ag Verfahren zur Herstellung eines optischen Sicherheitsmerkmals sowie ein Sicherheitselement und ein Sicherheitsdokument

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022128152A1 (fr) * 2020-12-17 2022-06-23 Giesecke+Devrient Currency Technology Gmbh Support de données comportant un substrat composite possédant un élément de sécurité disposé dans une zone de visualisation en transparence
CN115320274A (zh) * 2021-05-10 2022-11-11 捷德货币技术有限责任公司 具有体积全息图和附加效果的防伪元件
CN115366557A (zh) * 2021-05-18 2022-11-22 捷德货币技术有限责任公司 有价文件和用于制造有价文件的方法
CN115366557B (zh) * 2021-05-18 2024-06-11 捷德货币技术有限责任公司 有价文件和用于制造有价文件的方法
EP4306328A1 (fr) * 2022-07-15 2024-01-17 Hueck Folien Gesellschaft m.b.H. Élément de sécurité
EP4306329A1 (fr) * 2022-07-15 2024-01-17 Hueck Folien Gesellschaft m.b.H. Élément de sécurité
WO2024011271A1 (fr) * 2022-07-15 2024-01-18 Hueck Folien Gesellschaft M.B.H. Élément de sécurité

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EP3643511B1 (fr) 2022-07-06
DE102018008147A1 (de) 2020-04-16

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