EP4015230A1 - Élément de sécurité aux caractéristiques réfléchissantes et statiques - Google Patents

Élément de sécurité aux caractéristiques réfléchissantes et statiques Download PDF

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Publication number
EP4015230A1
EP4015230A1 EP20215525.5A EP20215525A EP4015230A1 EP 4015230 A1 EP4015230 A1 EP 4015230A1 EP 20215525 A EP20215525 A EP 20215525A EP 4015230 A1 EP4015230 A1 EP 4015230A1
Authority
EP
European Patent Office
Prior art keywords
structures
layer
security element
oxide
information
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.)
Pending
Application number
EP20215525.5A
Other languages
German (de)
English (en)
Inventor
Stephan Trassl
Anita FUCHSBAUER
Marco Mayrhofer
David BRANDSTETTER
Philipp Nothdurft
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.)
Hueck Folien GmbH
Original Assignee
Hueck Folien 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 Hueck Folien GmbH filed Critical Hueck Folien GmbH
Priority to EP20215525.5A priority Critical patent/EP4015230A1/fr
Priority to US18/266,873 priority patent/US20240100873A1/en
Priority to PCT/EP2021/085959 priority patent/WO2022129207A1/fr
Priority to CA3204290A priority patent/CA3204290A1/fr
Publication of EP4015230A1 publication Critical patent/EP4015230A1/fr
Pending legal-status Critical Current

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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
    • B42D25/328—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
    • B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • B42D25/29—Securities; Bank notes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/324—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
    • B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
    • B42D25/364—Liquid crystals
    • 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
    • B42D25/369—Magnetised or magnetisable 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
    • B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
    • B42D25/373—Metallic materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40—Manufacture
    • B42D25/405—Marking
    • B42D25/425—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
    • 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
    • G07D7/0032—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 using holograms
    • 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
    • G07D7/06—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 wave or particle radiation
    • G07D7/12—Visible light, infrared or ultraviolet radiation

Definitions

  • the invention relates to a security element for securities or security papers, wherein the security element is formed with at least one first area with first structures, which first structures reflect a first piece of information in different spatial areas, so that for a viewer with a corresponding movement of a light source and/or with a change in a Observation angle creates a moving image, with movement of the light source and / or change in the viewing angle at the same time a movement of the first information.
  • the invention also relates to a method for producing a security element.
  • Security elements of the type mentioned at the outset are usually used in order to increase the protection against counterfeiting of securities or security papers, such as banknotes, identity cards, credit cards, ATM cards, tickets, etc.
  • the object of the present invention is to create a security element with increased security against forgery.
  • a security element of the type mentioned at the outset in that the security element is formed with at least one second area with second structures, which second structures reproduce static and/or viewing-angle-independent second information.
  • the counterfeit protection of security elements for securities or security papers is significantly increased by combining two technologies or two different types of security features.
  • the combination of structures that create a moving picture with static and/or viewing angle-independent features enables a high degree of individualization, or a large variety of design options. This is accompanied by a significant increase in protection against counterfeiting.
  • the first structures are designed as diffractive structures, as micromirrors, as facets that have an optical effect on radiation or as achromatic, reflecting structures.
  • the formation of the first structures as diffractive structures is, for example, from EP2782765B1 and the EP2885135B1 as well as the WO2015107347A1 known.
  • An embodiment of the first structures as a micro-mirror is, for example, from US10189294A1 as well as the EP3362827A1 familiar to the expert.
  • a faceted shape of the structures is, for example, from the EP2632739A1 out.
  • the second structures are formed by diffusely scattering structures.
  • the second structures can preferably be formed by diffusely scattering structures with a size of 1 ⁇ m to 100 ⁇ m.
  • the formation of the second structures as diffusely scattering structures is known to experts, for example from EP2441593A1 known.
  • the first area surrounds the second area at least in sections.
  • the areas are formed into individual partial areas.
  • the second area can include a plurality of partial areas, which can be at least partially surrounded by the first area.
  • the first area surrounds the second area at least in sections, it being possible for a distance to be provided between the two areas, by which the two areas are distanced from one another.
  • a further area with a security feature known to the person skilled in the art can also be formed in such a distance area, for example.
  • the first piece of information and/or the second piece of information is in the form of a letter, number, character, symbol or part of an image or pattern.
  • the carrier layer has a carrier layer made of plastic, in particular made of a translucent and/or thermoplastic material, with the carrier layer preferably containing at least one of the materials from the group polyimide (PI), polypropylene (PP), monoaxially oriented polypropylene ( MOPP), biaxially oriented polypropylene (BOPP), polyethylene (PE), polyphenylene sulfide (PPS), polyetheretherketone, (PEEK) polyetherketone (PEK), polyethyleneimide (PEI), polysulfone (PSU), polyaryletherketone (PAEK), polyethylene naphthalate (PEN), liquid crystalline polymers (LCP), Polyester, polybutylene terephthalate (PBT), polyethylene terephthalate (PET), polyamide (PA), polycarbonate (PC), cycloolefin copolymers (COC), polyoxymethylene (POM), acrylonitrile butadiene styrene (ABS), polyvinyl
  • PTFE Polytetrafluoroethylene
  • PVDF polyvinyl fluoride
  • EFEP ethylene-tetrafluoroethylene-hexafluoropropylene fluoroterpolymer
  • the first area prefferably be arranged on one side of the carrier layer and for the second area to be arranged on the other side of the carrier layer.
  • This can be useful in particular when the carrier layer is transparent and at least approximately transparent. In this case, it would not necessarily be recognizable to an observer that the two areas are not formed on the same side of the carrier layer. For example, an observer can get the visual impression that the first area surrounds the second area at least in sections, although the areas are actually applied to different sides of the security element.
  • the security element is attached to a security paper with the carrier layer side, that is to say with the side facing away from a visible side of the security element.
  • the carrier layer is formed on the visible side, i.e. on the outside of the security element. It can be advantageous here if the carrier layer is designed to be translucent or also transparent. In addition, it would also be advantageous if the carrier layer is designed as a transfer layer, which transfer layer can be detached completely and without leaving any residue after the security element has been applied to a security document.
  • the carrier layer has a thickness of 5 ⁇ m to 1000 ⁇ m, particularly preferably a thickness of 10 ⁇ m to 50 ⁇ m.
  • first structures form a group whose orientations are matched to one another in such a way that they map a point of the first information item in an observation space, with the first information item resulting from the sum of all points represented by the group and wherein a movement of the point in the observation space is generated by changing an incidence direction of the light generated by the light source and/or by changing the observation angle.
  • the security element is formed with at least one third area with third structures, which third structures are formed by a layer with color-shifting pigments, in particular interference pigments, pigments with a color-shifting thin-layer structure or liquid crystal pigments, or by a layer with a color-shifting thin-layer structure and/or that the third structures are formed by at least one liquid crystal layer, in particular a cholesteric liquid crystal layer, and/or that the third structures are formed on a side facing away from a visible side with at least one layer that reinforces a color shift effect, and/or that the third Structures contain metallic pigments and / or magnetic pigments and / or color pigments and / or dyes, and which third structures reflect third information, wherein the first area and the third area and / or second area and the third area overlap at least in sections.
  • third structures are formed by a layer with color-shifting pigments, in particular interference pigments, pigments with a color-shifting thin-layer structure or liquid crystal pigments, or by a layer with a color
  • further coatings or structures with optical effects of various types can be present above and also next to the first and second structures, which have additional optical effects.
  • Appropriate combinations of the most varied of coatings or security features are of course also possible.
  • both the first structures and the second structures are covered or covered at least in regions by the third structures.
  • Such coatings can also be present only partially.
  • An embodiment can also be advantageous here, according to which the third structures are formed as a color-shifting coating and according to which additional structures with a reflective effect, for example caused by a metallic coating, are formed. These third structures and further structures can at least partially overlay the first and/or the second area.
  • the third structures contain metallic pigments and/or magnetic pigments and/or color pigments and/or dyes, and thus produce no color-shifting effect
  • an arrangement may be appropriate according to which the third structures on a reflective layer described below with a high refractive index are arranged.
  • a colored lacquer layer can be arranged on a so-called HRI layer.
  • the third structures are formed with a layer with color-shifting pigments or with a color-shifting thin-layer structure, it may be the case that they comprise at least one absorber layer and at least one spacer layer.
  • the formation of a third area with third structures can contribute in an advantageous manner to an additional increase in design options and thus counterfeit security.
  • the color-shifting thin-layer structure or the color-shifting pigments can have at least one absorber layer and at least one spacer layer made of a dielectric material.
  • the thin-layer structure it is conceivable for the thin-layer structure to have at least one reflection layer, with the spacer layer being able to be arranged between the reflection layer and the absorber layer.
  • the absorber layer, spacer layer or reflection layer can be applied to the first and/or second structures, in particular printed and/or vapor-deposited.
  • different layer sequences are conceivable or expedient.
  • a structure with a sequence “carrier layer or layer with a first and/or second structure introduced therein—reflection layer—spacer layer—absorber layer” can be provided.
  • a structure with a sequence “carrier layer or layer with first and/or second structure introduced therein—absorber layer—spacer layer—reflection layer” is also conceivable.
  • the visible side is always that side from which an observer looks from the absorber layer in the direction of the reflection layer.
  • a layer is applied to something
  • the phrase "a layer is applied to something" is to be understood in such a way that the layer can be applied directly, or that there is another or there may be several intermediate layers.
  • one or more intermediate layers can be arranged between the layers described in this document. It is therefore not absolutely necessary that the described layers contact each other.
  • the term layer in this document is to be understood in such a way that a layer can also be made up of a number of sub-layers.
  • An absorber layer can include at least one metallic material, in particular selected from the group consisting of nickel, titanium, vanadium, chromium, cobalt, palladium, iron, tungsten, molybdenum, niobium, aluminum, silver, copper and/or alloys of these materials, or at least one be made of these materials.
  • a spacer layer can contain at least one low-index dielectric material with a refractive index of less than or equal to 1.65, in particular selected from the group consisting of aluminum oxide (Al 2 O 3 ), metal fluorides, for example magnesium fluoride (MgF 2 ), aluminum fluoride (AlF 3 ), cerium fluoride (CeF 3 ), sodium aluminum fluoride (e.g.
  • Na 3 AlF 6 or Na 5 Al 3 F 14 silicon oxide (SIO x ), silicon dioxide (SiO 2 ), neodymium fluoride (NdF 3 ), lanthanum fluoride (LaF 3 ), samarium fluoride (SmF 3 ), barium fluoride (BaF 2 ), calcium fluoride (CaF 2 ), lithium fluoride (LiF), low-index organic monomers and/or low-index organic polymers or at least one high-index dielectric material with a refractive index greater than 1.65, in particular selected from the group zinc sulfide ( ZnS), zinc oxide (ZnO), titanium dioxide (TiO 2 ), carbon (C), indium oxide (In 2 O 3 ), indium tin oxide (ITO), tantalum pentoxide (Ta 2 O 5 ), cerium oxide (CeO 2 ), Yttrium Oxide (Y 2 O 3 ), Europium Oxide (Eu 2 O 3 ), E
  • the at least one reflection layer can be at least one metallic material, in particular selected from the group consisting of silver, copper, gold, platinum, aluminum, niobium, tin, or nickel, titanium, vanadium, chromium, cobalt and palladium or alloys of these materials, in particular cobalt Nickel alloys or at least one high-index dielectric Material with a refractive index greater than 1.65, in particular selected from the group of zinc sulfide (ZnS), zinc oxide (ZnO), titanium dioxide (TiO 2 ), carbon (C), indium oxide (In 2 O 3 ), indium tin oxide (ITO), tantalum pentoxide (Ta 2 O 5 ), cerium oxide (CeO 2 ), yttrium oxide (Y 2 O 3 ), europium oxide (Eu 2 O 3 ), iron oxides such as iron(II,III) oxide (Fe 3 O 4 ) and ferric oxide (Fe 2 O 3 ), hafnium nitride (Hf
  • the first structures and/or the second structures are introduced into the carrier layer by means of a molding device, in particular by means of an embossing roller.
  • a molding element can be formed with or on a molding device or an embossing roller, on which molding element the first and/or the second structures can be formed.
  • Generic impression elements are known in principle to the person skilled in the art.
  • a molding element can be, for example, a sheet metal or a polymer plate, which preferably have a mirror reflection surface, ie a surface with a low surface roughness.
  • Metals such as nickel, steel, brass or polymers such as PMMA, PC, PS, cured UV lacquers or the like are used to produce such an impression element or master.
  • the first and second structures can, for example, be introduced or pressed or embossed into a carrier layer comprising UV-curable lacquers.
  • the lacquers are liquid before embossing and solid or hardened after embossing.
  • a large number of UV lacquers suitable for this purpose, such as, for example, acrylate lacquers, are sufficiently known to the person skilled in the art.
  • the first structures and/or the second structures can be introduced in a layer applied directly to the carrier layer or with the arrangement of a further intermediate layer, in particular an embossing lacquer layer, by means of a molding device, in particular by means of an embossing roller .
  • Impression elements according to the previous description can also be used here.
  • Metals such as nickel, steel, brass or polymers such as PMMA, PC, PS, hardened UV lacquers or the like can also be used to produce such a molding device.
  • the first structures can be introduced, for example, into an embossing lacquer layer comprising UV-curable lacquers.
  • first structures and/or the second structures are applied directly to the carrier layer, in particular directly to the thermoplastic carrier layer, by means of a molding element attached to a molding device, in particular by means of a heated embossing roller, with the application of pressure and/or heat are.
  • the layer, in particular the embossing lacquer layer, with the first structures formed therein and/or the second structures preferably has a thickness of 0.5 ⁇ m to 300 ⁇ m, in particular 0.8 ⁇ m to 50 ⁇ m from 1 ⁇ m to 10 ⁇ m.
  • the security element has at least one reflective layer on a side of the carrier layer facing away from the first structures and the second structures and/or a reflective layer is arranged between the carrier layer and the first structures and/or between the carrier layer and the a reflective layer is arranged on the second structures and/or the first structures are coated with at least one reflective layer and/or the second structures are coated with at least one reflective layer, the at least one reflective layer preferably being a metallic material, in particular selected from the group Silver, copper, aluminum, gold, platinum, niobium, tin, or nickel, titanium, vanadium, chromium, cobalt and palladium or alloys of these materials, in particular cobalt-nickel alloys, or at least one high-index dielectric material with a refractive index dex greater than 1.65, in particular selected from the group of zinc sulfide (ZnS), zinc oxide (ZnO), titanium dioxide (TiO 2 ), carbon (C), indium oxide (In 2 O 3 ), in
  • the second structures are introduced at least in sections into the first structures, in particular are embossed or engraved into the first structures.
  • the person skilled in the art is fundamentally familiar with methods for forming or introducing achromatic structures. For example, this can be done by means of a laser and in particular by means of laser ablation.
  • the first structures, or the micromirrors, which can be applied to a master or an impression element, can be overwritten or written with the second, achromatic structures, as it were, by means of laser ablation.
  • the security element is equipped with machine-readable features, the machine-readable features being, in particular, magnetic codes, electrically conductive layers, and substances that absorb and/or re-emit electromagnetic waves.
  • the security element has additional layers, which additional layers include in particular protective lacquers, heat-sealing lacquers, adhesives, primers and/or foils.
  • the counterfeit protection of security elements for securities or security papers is significantly increased by combining two technologies or two different types of security features.
  • the combination of movement effects with static and/or viewing angle-independent features enables a high degree of customization and a large variety of design options. This is accompanied by a significant increase in protection against counterfeiting.
  • a molding element can be arranged on a molding device or an embossing roller, on which molding element the first and/or the second structures can be formed.
  • Generic impression elements are known in principle to the person skilled in the art.
  • a molding element can be, for example, a metal sheet or a polymer plate, which preferably have a mirror reflection surface.
  • Metals such as nickel, steel, brass or polymers such as PMMA, PC, PS, cured UV lacquers or the like are used to produce such an impression element or master.
  • Static structures and/or structures that are independent of the viewing angle can be introduced, for example, by means of a laser and in particular by means of laser ablation.
  • the first structures for example the micromirrors, which can be applied to a master or a molding element, can be written over or written by means of laser ablation, so to speak, with the second, static and/or viewing angle-independent structures.
  • the second, static and/or viewing angle-independent structures By introducing the second, static and/or viewing angle-independent structures by means of a laser, the positions or the arrangement of the structures on the master can always remain the same in relation to one another. The accuracy or precision that can be achieved in this way can further contribute to an additional increase in security against forgery.
  • the term "in particular” is understood below to mean that it can be a possible more specific design or more detailed specification of an object or a method step, but does not necessarily have to represent a mandatory, preferred embodiment of the same or a mandatory procedure.
  • the term "layer” is generally used for a multi-layered component composite that belongs together. Each of the layers described below can therefore also comprise a plurality of layers, preferably connected to one another or adhering to one another. To avoid unnecessary repetition, the Figures 1 to 7 at least partially comprehensively described.
  • a possible embodiment of a security element 1 for securities or security papers 22 is shown in supervision by way of example.
  • the security element 1 is designed with at least one first area 2 with first structures 3, which first structures 3 reflect a first piece of information in different spatial areas, so that a moving image is created for a viewer when a light source 8 moves accordingly and/or when the viewing angle changes. movement of the light source 8 and/or a change in the observation angle simultaneously causing the first information to move.
  • the first region 2 can include the first structures 3 or be formed by them.
  • the security element 1 is formed with at least one second area 4 with second structures 5, which second structures 5 reproduce static and/or viewing angle-independent second information.
  • the second region 4 can include the second structures 5 or be formed by them.
  • the first structures 3 can be in the form of diffractive structures, micromirrors, facets with an optical effect or achromatic, reflecting structures.
  • the second structures 5 can be formed by diffusely scattering structures, with diffusely scattering structures having a size of 1 ⁇ m to 100 ⁇ m preferably being formed. It may be that the second area 4 overlays or surrounds the first area 2 at least in sections or partially. It should be emphasized that the first structures 3 and second structures 5 can be formed both partially and over the entire surface.
  • the first information and/or the second information can be in the form of a letter, number, character, symbol or part of an image or pattern.
  • the first information is in the illustrated embodiment figure 1 to optically variable structures 3 such as micromirrors, which convey a movement effect to a viewer when a light source 8 moves and/or when an observation angle changes, while the second information item is embodied as an image or as a portrait.
  • the first area 2 can surround or overlap the second area 4 at least in sections.
  • the figure 2 shows a section through a conceivable embodiment of a security element 1.
  • the security element 1 is formed with at least one first region 2 with first structures 3, which first structures 3 are formed by optically variable structures such as micromirrors and which first structures 3 are a first piece of information play back
  • the security element 1 is formed with at least one second region 4 with second structures 5, which second structures 5 are formed by static structures and/or structures that are independent of the viewing angle and which second structures 5 reproduce a second piece of information.
  • the second area 4 is surrounded by the first area 2 at least in sections.
  • the security element 1 can have a carrier layer 6 made of plastic, in particular made of a translucent and/or thermoplastic material, with the carrier layer 6 preferably containing at least one of the materials from the group polyimide (PI), polypropylene (PP), monoaxially oriented polypropylene (MOPP ), biaxially oriented polypropylene (BOPP), polyethylene (PE), polyphenylene sulfide (PPS), polyether ether ketone, (PEEK) polyether ketone (PEK), polyethylene imide (PEI), polysulfone (PSU), polyaryl ether ketone (PAEK), polyethylene naphthalate (PEN), liquid crystalline Polymers (LCP), polyester, polybutylene terephthalate (PBT), polyethylene terephthalate (PET), polyamide (PA), polycarbonate (PC), cycloolefin copolymers (COC), polyoxymethylene (POM), acrylonitrile butadiene styrene (ABS
  • the first structures 3 can reflect the first information into different spatial regions, so that a movement image is created for the viewer when a light source 8 moves accordingly and/or when the viewing angle changes.
  • Several of the first structures 3 can form a group whose alignments can be matched to one another in such a way that they map a point of the first information in an observation space, the first information being composed of the sum of all points represented by the group and by changing a direction of incidence of the light generated by the light source 8 and/or when the observation angle changes, a movement of the point in the observation space is produced.
  • the first piece of information can be, for example, an image motif or a pattern.
  • the first structures 3 and/or the second structures 5 can - as shown - be incorporated into a layer 14 applied directly to the carrier layer 6, or alternatively, with the arrangement of a further intermediate layer, a layer 14 applied to the carrier layer 6, in particular an embossing lacquer layer, by means of a molding device 12 , In particular by means of an embossing roller 13, be introduced.
  • the layer 14, in particular the embossing lacquer layer, with the first structures 3 and/or second structures 5 formed therein can have a thickness 15 of 0.5 ⁇ m to 300 ⁇ m, in particular from 0.8 ⁇ m to 50 ⁇ m, preferably from 1 ⁇ m to 10 have microns.
  • FIG 2 1 shows that on a visible side 23 of the security element 1 a reflective layer 16 overlying the layer 14 with the first structures 3 and/or second structures 5 formed therein can be formed.
  • This reflective layer 16 can, as in FIG figure 2 be shown over the entire surface, but also be partially formed. In particular, it can be expedient if the reflective layer 16 follows the contours of the first structures 3 and/or the second structures 5 .
  • the security element 1 has at least one reflective layer 16 on a side of the carrier layer 6 facing away from the first structures 3 and the second structures 5 and/or between the carrier layer 6 and the first structures 3 and/or the second Structures 5 a reflective layer 16 is arranged.
  • the at least one reflective layer 16 can preferably be a metallic material, in particular selected from the group consisting of silver, copper, aluminum, gold, platinum, niobium, tin, or nickel, titanium, vanadium, chromium, cobalt and palladium or alloys of these materials, in particular Cobalt-nickel alloys, or at least one high-index dielectric material with a refractive index greater than 1.65, in particular selected from the group of zinc sulfide (ZnS), zinc oxide (ZnO), titanium dioxide (TiO 2 ), carbon (C), indium oxide ( In 2 O 3 ), indium tin oxide (ITO), tantalum pentoxide (Ta 2 O 5 ), cerium oxide (CeO 2 ), yttrium oxide (Y 2 O 3 ), europium oxide (Eu 2 O 3 ), iron oxides such as iron (II,III) oxide (Fe 3 O 4 ) and ferric oxide (Fe 2 O 3 ), hafnium nit
  • the second structures 5 can be designed to be diffusely scattering.
  • the second structures 5 can advantageously be introduced at least in sections into the first structures 3 , in particular embossed or engraved into the first structures 3 .
  • the security element 1 is equipped with machine-readable features.
  • the machine-readable features can in particular be magnetic codes, electrically conductive layers, materials that absorb and/or re-emit electromagnetic waves.
  • a security element 1 which is formed with at least one third region 9 with third structures 10, which third structures 10 are covered by a layer with color-shifting pigments, in particular interference pigments, pigments with a color-shifting thin-layer structure 11 or liquid-crystal pigments, or by a layer with a color-shifting thin-film structure 11 are formed, and/or that the third structures 10 are formed by at least one liquid crystal layer, in particular a cholesteric liquid crystal layer, and/or that the third structures 10 are formed on a side facing away from the visible side 23 with at least one layer that reinforces a color shift effect, and/or that the third structures 10 contain metallic pigments and/or magnetic pigments and/or colored pigments and/or dyes, and which third structures 10 reproduce third information, with the first area 2 and the third area 9 and/or the second area 4 and the third area 9 overlap at least in sections.
  • the third structures 10 contain metallic pigments and/or magnetic pigments and/or colored pigments and/or dyes, and which third structures 10 reproduce third information
  • Arranging or applying the third structures 10 or components or partial layers of the third structures 10 to the security element 1 or to the first structures 3 and/or second structures 5 can be carried out, for example, by a printing process and/or a vapor deposition process or by several of the same.
  • the exemplary embodiment according to FIG figure 3 formed with a color-shifting thin-film structure 11.
  • the color-shifting thin-film structure 11 can have at least one absorber layer 18 and at least one spacer layer 19 made of a dielectric material.
  • the thin-layer structure can have at least one reflection layer 20 , with the spacer layer 19 being able to be arranged between the reflection layer 20 and the absorber layer 18 .
  • the reflection layer 20 can overlap the carrier layer 6 in sections or over the entire surface. It may be the case that the reflective layer 20 acts as a reflective layer 16 between the carrier layer 6 and the first structures 3 and second structures 5, or between the carrier layer 6 and the layer 14 with the first structures 3 and/or second structures 5 formed therein is trained.
  • a color-shifting thin-film structure 11 is at least partially superimposed on the first structures 3 and/or the second structures 5 .
  • a possible embodiment is exemplified by the Figures 7a and 7b shown. In this case, both the first structures 3 and the second structures 5 are partially covered by the thin-film structure 11 .
  • different layer sequences are conceivable or expedient. For example, as in the Figure 7a shown, a structure with a sequence described from bottom to top “layer 14 with first 3 and/or second structure 5 embossed therein—reflection layer 20—spacer layer 19—absorber layer 18” can be provided.
  • a structure according to the example in the Figure 7b conceivable, in which, viewed from bottom to top, a sequence “layer 14 with first 3 and/or second structure 5 embossed therein—absorber layer 18—spacer layer 19—reflection layer 20” is shown.
  • the visible side 23 always means the side from which an observer looks from the absorber layer 18 in the direction of the reflection layer 20 .
  • the security element 1 in the figure 3 no additional layer 14 applied to the carrier layer 6, in which the first structures 3 and second structures 5 are introduced.
  • the first structures 3 and second structures 5 are in the figure 3 introduced or embossed directly into the carrier layer 6 .
  • the security element 1 can also have additional layers 21, which additional layers 21 include in particular protective lacquers, heat-sealing lacquers, adhesives, primers and/or foils.
  • additional layers 21 include in particular protective lacquers, heat-sealing lacquers, adhesives, primers and/or foils.
  • a layer 21 can be formed as a cover layer on a visible side 23 of the security element 1 .
  • the figures 4 and 5 each show a section through two further exemplary embodiments of security elements 1 with a security or security paper 22.
  • FIG 4 1 shows that the security element 1 is arranged on a security paper or security paper 22 with its side of the carrier layer 6 facing away from the visible side 23 .
  • An additional layer 21 is formed on the side of the carrier layer 6 facing away from the visible side 23, which additional layer 21 can be formed as an adhesion layer or as an adhesive layer.
  • a reflective layer 16 is formed on the visible side 23 of the security element 1 , the first structures 3 and the second structures 5 being coated with the reflective layer 16 .
  • a layer 21 as a protective layer can be provided as the top layer, ie as the outermost layer viewed from the visible side 23, which protects the entire layer and/or layer structure from mechanical damage such as scratches, grooves or the like.
  • a layer 21 designed as a protective layer does not form the outermost layer of the layer structure, but that this is covered by a layer 21 designed as an adhesion or adhesive layer.
  • the protective layer formed as a layer 21 - as exemplified by the Figures 3 and 4 shown - a planar formation of the security element 1 can also be achieved.
  • a layer 21 designed as a protective layer follows a contour of the structures 3, 5, 10. This is in the figure 7 shown.
  • the carrier layer 6 of the security element 1 is designed as a detachable or peelable transfer film 24 . It is of course also conceivable for the carrier layer 6 to be transparent or at least translucent when it is arranged facing the visible side 23 of the security element 1 .
  • the carrier layer 6 can advantageously also fulfill the functions of a layer 21 designed as a protective layer.
  • a layer 21 designed as a protective layer can also be shown between the first and second structures 3, 5 and the carrier layer 6 or between the reflective layer 16 and the carrier layer 6.
  • the security element 1 can thus be applied to the security or security paper 22 with its side facing away from the visible side 23 .
  • an additional layer 21 can optionally be formed, which additional layer 21 can be formed as an adhesion layer or as an adhesive layer.
  • FIG 6 a roughly schematic process flow for the production of a security element 1 for a security or security paper 22 is shown.
  • the method outlined is particularly suitable for producing a security element according to one of claims 1 to 18.
  • the method initially provides that an impression element 17 comprising first structures 3 and second structures 5 is provided.
  • the first structures 3 are designed in such a way that they reflect a first piece of information in different spatial regions, so that a movement image is created for a viewer with a corresponding movement of a light source 8 and/or with a change in an observation angle, with movement of the light source 8 and/or change of the observation angle, a movement of the first piece of information occurs at the same time.
  • the second structures 5 reproduce static and/or viewing angle-independent second information. Furthermore, a carrier layer 6 is provided. Alternatively, as shown in the figure, a carrier layer 6 comprising a layer 14, in particular an embossing lacquer layer, can be provided. According to the invention, the first structures 3 and the second structures 5 are also molded into the carrier layer 6 or into the layer 14.
  • an impression element 17 or master is formed with first structures 3 with a movement effect, such as micromirrors, and if a second impression element 17 or a second master has static and/or viewing angle independent, in particular diffusely scattering, second structures 5 is formed.
  • a movement effect such as micromirrors
  • second impression element 17 or a second master has static and/or viewing angle independent, in particular diffusely scattering
  • second structures 5 is formed.
  • These two masters can be copied and duplicated any number of times and placed side by side in any convenient way.
  • An arrangement on a molding device 12, such as an embossing roller 13 or a shim, and subsequently embossing into a particularly UV-curable layer 14 or embossing lacquer layer can take place.
  • an impression element 17 or master with first structures 3 is provided and if the second structures 5 are introduced in or also next to these first structures 3, for example by means of laser ablation.
  • a master produced in this way can also be reproduced in one or more subsequent steps, the execution of such copying steps from the positive to the negative and vice versa being fundamentally familiar to those skilled in the art.
  • an arrangement on a molding device 12 such as an embossing roller 13 or a shim and an embossing of the first and second structures 3, 5 can take place in a particularly UV-curable layer 14 or embossing lacquer layer.

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  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Toxicology (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Computer Security & Cryptography (AREA)
  • Finance (AREA)
  • Accounting & Taxation (AREA)
  • Business, Economics & Management (AREA)
  • Credit Cards Or The Like (AREA)
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EP20215525.5A 2020-12-18 2020-12-18 Élément de sécurité aux caractéristiques réfléchissantes et statiques Pending EP4015230A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP20215525.5A EP4015230A1 (fr) 2020-12-18 2020-12-18 Élément de sécurité aux caractéristiques réfléchissantes et statiques
US18/266,873 US20240100873A1 (en) 2020-12-18 2021-12-15 Security element having reflective and static features
PCT/EP2021/085959 WO2022129207A1 (fr) 2020-12-18 2021-12-15 Élément de sécurité à signes réfléchissantes et statiques
CA3204290A CA3204290A1 (fr) 2020-12-18 2021-12-15 Element de securite a signes reflechissantes et statiques

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20215525.5A EP4015230A1 (fr) 2020-12-18 2020-12-18 Élément de sécurité aux caractéristiques réfléchissantes et statiques

Publications (1)

Publication Number Publication Date
EP4015230A1 true EP4015230A1 (fr) 2022-06-22

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EP20215525.5A Pending EP4015230A1 (fr) 2020-12-18 2020-12-18 Élément de sécurité aux caractéristiques réfléchissantes et statiques

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US (1) US20240100873A1 (fr)
EP (1) EP4015230A1 (fr)
CA (1) CA3204290A1 (fr)
WO (1) WO2022129207A1 (fr)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0420261A2 (fr) * 1989-09-28 1991-04-03 GAO Gesellschaft für Automation und Organisation mbH Support d'information avec élément optique variable et son procédé de fabrication
EP0723246A2 (fr) * 1994-12-23 1996-07-24 Giesecke & Devrient GmbH Support d'information à élément optiquement variable
WO2001003945A1 (fr) * 1999-07-08 2001-01-18 Flex Products, Inc. Surfaces de diffraction avec arriere-plans a changement de couleur
WO2007079851A1 (fr) * 2005-12-21 2007-07-19 Giesecke & Devrient Gmbh Elément de sécurité à variation d'aspect et son procédé de fabrication
EP2441593A1 (fr) 2010-10-13 2012-04-18 Hueck Folien Ges.m.b.H. Élément de sécurité disposant de caractéristiques achromatiques
EP2632739A1 (fr) 2010-10-26 2013-09-04 Giesecke & Devrient GmbH Élément de sécurité comportant un motif de surface optiquement variable
WO2014124781A1 (fr) * 2013-02-12 2014-08-21 Sectago Gmbh Dispositif de sécurité
WO2015107347A1 (fr) 2014-01-20 2015-07-23 De La Rue International Limited Elements de securite et leurs procedes de fabrication
EP2782765B1 (fr) 2012-12-04 2015-12-02 Sectago GmbH Dispositif de sécurité
EP3362827A1 (fr) 2015-12-03 2018-08-22 Lumenco, LLC Matrices de micro-miroirs pour utilisation dans des dispositifs de sécurité d'imagerie

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0420261A2 (fr) * 1989-09-28 1991-04-03 GAO Gesellschaft für Automation und Organisation mbH Support d'information avec élément optique variable et son procédé de fabrication
EP0723246A2 (fr) * 1994-12-23 1996-07-24 Giesecke & Devrient GmbH Support d'information à élément optiquement variable
WO2001003945A1 (fr) * 1999-07-08 2001-01-18 Flex Products, Inc. Surfaces de diffraction avec arriere-plans a changement de couleur
WO2007079851A1 (fr) * 2005-12-21 2007-07-19 Giesecke & Devrient Gmbh Elément de sécurité à variation d'aspect et son procédé de fabrication
EP2441593A1 (fr) 2010-10-13 2012-04-18 Hueck Folien Ges.m.b.H. Élément de sécurité disposant de caractéristiques achromatiques
EP2632739A1 (fr) 2010-10-26 2013-09-04 Giesecke & Devrient GmbH Élément de sécurité comportant un motif de surface optiquement variable
EP2782765B1 (fr) 2012-12-04 2015-12-02 Sectago GmbH Dispositif de sécurité
WO2014124781A1 (fr) * 2013-02-12 2014-08-21 Sectago Gmbh Dispositif de sécurité
EP2885135B1 (fr) 2013-02-12 2018-01-10 Sectago GmbH Dispositif de sécurité
WO2015107347A1 (fr) 2014-01-20 2015-07-23 De La Rue International Limited Elements de securite et leurs procedes de fabrication
EP3372420A1 (fr) * 2014-01-20 2018-09-12 De La Rue International Limited Éléments de sécurité et leurs procédés de fabrication
EP3362827A1 (fr) 2015-12-03 2018-08-22 Lumenco, LLC Matrices de micro-miroirs pour utilisation dans des dispositifs de sécurité d'imagerie
US10189294B2 (en) 2015-12-03 2019-01-29 Lumenco, Llc Arrays of individually oriented micro mirrors for use in imaging security devices for currency and brand authentication

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WO2022129207A1 (fr) 2022-06-23
US20240100873A1 (en) 2024-03-28
CA3204290A1 (fr) 2022-06-23

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