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EP3271191B1 - Élément de sécurité - Google Patents

Élément de sécurité Download PDF

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Publication number
EP3271191B1
EP3271191B1 EP16710097.3A EP16710097A EP3271191B1 EP 3271191 B1 EP3271191 B1 EP 3271191B1 EP 16710097 A EP16710097 A EP 16710097A EP 3271191 B1 EP3271191 B1 EP 3271191B1
Authority
EP
European Patent Office
Prior art keywords
layer
contrast
security element
carrier material
absorber
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
EP16710097.3A
Other languages
German (de)
English (en)
Other versions
EP3271191A1 (fr
EP3271191B2 (fr
Inventor
Gianluca Messa
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
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Application filed by Giesecke and Devrient Currency Technology GmbH filed Critical Giesecke and Devrient Currency Technology GmbH
Publication of EP3271191A1 publication Critical patent/EP3271191A1/fr
Publication of EP3271191B1 publication Critical patent/EP3271191B1/fr
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Publication of EP3271191B2 publication Critical patent/EP3271191B2/fr
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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
    • 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
    • B42D25/378—Special inks
    • 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
    • B42D25/23—Identity cards
    • 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
    • B42D25/40—Manufacture
    • B42D25/45—Associating two or more layers

Definitions

  • the invention relates to a security element, a method for producing a security element and a value document with security element.
  • Value documents within the meaning of the invention include banknotes, stocks, bonds, certificates, vouchers, checks, air tickets, high-quality entrance tickets, labels for product security, credit or debit cards, but also other forgery-prone documents, such as passports, ID cards or other identity documents.
  • Value documents are usually made from paper substrates, polymer substrates, or combinations of paper and polymer which have particular security features, such as e.g. have at least partially incorporated in the paper security thread or a watermark.
  • security features such as e.g. have at least partially incorporated in the paper security thread or a watermark.
  • window films, security threads, tapes can be glued / laminated or introduced onto the document of value.
  • Security elements usually comprise as a base material a polymer or polymer compositions.
  • security features have optically variable security features such as holograms or certain color-shift effects to provide better anti-counterfeit security.
  • optically variable security elements is that the security features on these security elements can not be imitated by mere copying with copiers, since effects of an optically variable security feature are lost due to copying or even appear only black.
  • Negative patterns or negative text in the field of Farbkipp compacte / thin-film elements consuming and often qualitatively unsatisfactory.
  • introducing negative patterns into a color-shift-effect region requires that the layers of the thin-film element leading to the color-shift effect at least partially be removed at the locations where the negative patterns are to be introduced.
  • the spacer layer of a thin-film element is formed by a film.
  • the thin-film element may be arranged over a hologram.
  • DE 10 2008 013 167 A1 shows a thin film element over a partially metallized relief structure.
  • a first aspect of the invention relates to a security element comprising: a substrate having first and second major surfaces facing each other; an absorber layer, a dielectric layer, and a partially reflective layer disposed on the first main surface; wherein the dielectric layer is between the absorber layer and the partially reflective layer is disposed and the absorber layer is disposed between the dielectric layer and the substrate; and a contrast layer closest to the absorber layer from the partially reflecting layer, the dielectric layer and the absorber layer.
  • the carrier material is arranged between the contrast layer and the absorber layer.
  • the contrast layer is a layer of dark ink or a dark resist.
  • the carrier material may have one or more areas to be coated, in which the absorber layer, the dielectric layer and the partially reflecting layer are arranged.
  • the carrier material is preferably a film-like material.
  • the at least one regions to be coated is preferably arranged on a main surface of the carrier material. If the carrier material has a plurality of regions to be coated, these can be arranged only on one of the two main surfaces or on both main surfaces of the carrier material. In particular, a region to be coated may be a thin-film element region or a Colorshift region.
  • the area of the carrier material to be coated may have different surface shapes.
  • the area to be coated may be rectangular, oval, star-shaped or serpentine.
  • the shape and size of the area to be coated is preferably defined or determined in a process layer.
  • the area of the carrier material to be coated may have a surface structure and / or surface quality which differs from other areas of the carrier material.
  • the substrate has an area defined as an area to be coated.
  • the absorber layer, the dielectric layer and the partially reflecting Layer arranged or applied over the whole area in the area to be coated.
  • the absorber layer, the dielectric layer and the partially reflecting layer can be applied by means of physical vapor deposition, for example.
  • the security element can have a relief structure.
  • this relief structure may be provided on / on the first main surface of the support medium.
  • the relief structure may be provided by means of a embossed embossing lacquer layer which is arranged on the first main surface of the carrier medium.
  • the relief structure may be provided in the dielectric layer so that the dielectric layer does not have a constant layer thickness.
  • the security element can be designed as a so-called T-patch or T-LEAD, wherein the carrier medium is removed before application to a value-document substrate.
  • the security element may be formed as a so-called L-patch or L-LEAD, wherein the carrier medium is connected to the value document substrate. That the carrier medium is not removed from the security element.
  • the layer sequence partially reflecting layer, dielectric layer and absorber layer forms a thin layer structure with a color shift effect or a thin layer element with a color shift effect.
  • the structured spacer layer and the absorber layer see-through color effects may also be present instead of color-shift effects.
  • the security element has a protective layer which is arranged in the (entire) area to be coated.
  • the protective layer is arranged on / on the partially reflecting layer.
  • the protective layer preferably comprises a protective lacquer.
  • the protective layer comprises a heat sealing lacquer and / or a primer.
  • the carrier material comprises a carrier film.
  • the carrier material comprises polyethylene terephthalate (PET) and / or polypropylene (PP), particularly preferably the carrier material is PET or PP.
  • a security element according to this invention may in particular comprise a film or a multilayer substrate, wherein the multilayer substrate may also comprise a combination of fabric substrates and films.
  • the security element may comprise a window area which serves to fill or bridge a hole in a value document or in the paper substrate of the value document.
  • a security window in a value document can be inserted / applied with the security element.
  • the area to be coated is arranged in the window area of the security element.
  • the security element may be applied to a value document, for example laminated or glued.
  • the security element may be a security thread or ribbon, window thread, patch or the like.
  • the thin film element ie the partially reflective layer, the dielectric layer and the absorber layer
  • the thin film element can be opaque in the contrast layer areas while the thin film element is in the areas are semitransparent without contrast layer. Consequently, by structuring the contrast layer, additional information can be easily and quickly provided in the security element.
  • the contrast layer is a patterned layer, i. structured contrast layer.
  • a structured contrast layer is to be understood as meaning that the contrast layer forms a pattern or motif that is visible to a viewer when viewing the security element.
  • a structured contrast layer is to be understood as meaning that the contrast layer is not arranged uniformly or over the full area at / above the absorber layer or the carrier medium. Rather, due to the structured contrast layer, there are areas / subareas in the areas to be coated in which the contrast layer is left out.
  • the structured contrast layer forms a predetermined motif or pattern such as a character, a string and / or an image.
  • This motif or pattern determines the structure of the structured contrast layer.
  • the subject may be visible or discernible to a viewer when the viewer is viewing the security element in the direction of the main surface normal or perpendicular to the first major surface of the substrate having the area to be coated.
  • the contrast layer is a layer of dark ink.
  • the contrast layer is a layer of a dark resist.
  • the structured contrast layer is preferably arranged / applied by printing in the form of a motif.
  • the structured contrast layer is preferably arranged by means of one or more rollers and / or cylinders.
  • the number of rolls may vary.
  • the rollers / cylinders can transport paint and / or paint to each other.
  • the arrangement of the motif or the motif print is preferably carried out by a high-pressure mold.
  • the structured contrast layer is preferably applied by means of a flexographic printing process. Alternatively or additionally, the structured contrast layer is applied by gravure printing. Alternatively or additionally, the structured contrast layer is applied by means of inkjet printing process. Alternatively or additionally, the structured contrast layer is applied by means of offset printing. alternative or additionally, the structured contrast layer is applied by screen printing.
  • the contrast layer has a layer thickness of 1 .mu.m to 15 .mu.m, preferably 2 .mu.m to 4 .mu.m.
  • the layer thickness of the contrast layer is a constant layer thickness.
  • the security element comprises an additional layer which is arranged between the absorber layer and the contrast layer.
  • the additional layer is a structured layer, i. an additional, structured layer, for example in the form of a pattern or motif. Further preferably, the additional layer has a constant layer thickness.
  • the layer thickness of the additional layer is preferably in a range from 1 ⁇ m to 15 ⁇ m, preferably in the range from 1 ⁇ m to 5 ⁇ m and / or 5 ⁇ m to 10 ⁇ m and / or 10 ⁇ m to 15 ⁇ m.
  • the additional layer comprises a magnetic printing ink, a fluorescent printing or a machine-readable imprint. Further preferably, the additional layer comprises infrared-visible and / or thermochromic printing inks.
  • the partially reflecting layer has a layer thickness of 50 ⁇ (5 nm) to 500 ⁇ (50 nm) (Angstrom), preferably 100 ⁇ (10 nm) to 300 ⁇ (30 nm). Further preferably, the layer thickness of the partially reflecting layer is constant.
  • the partially reflecting layer is a metallic layer, preferably of aluminum or an aluminum alloy.
  • the absorber layer preferably has a layer thickness of 30 ⁇ (0.3 nm) to 200 ⁇ (20 nm), preferably 50 ⁇ (5 nm) to 100 ⁇ (10 nm). Further preferably, the layer thickness of the absorber layer is constant.
  • the absorber layer is a metallic layer, preferably of chromium.
  • the dielectric layer preferably has an optical thickness of two quarter wavelengths ( ⁇ / 2) with respect to a wavelength of 400 nm (2 quarter wave optical thickness, 2 QWOT) to new quarter wavelengths (9 ⁇ / 4) (9 Quarter Wave Optical Thickness; 9 QWOT ) with respect to a wavelength of 700 nm, preferably, the layer thickness between 2 QWOT (2 ⁇ / 4) to 8 QWOT (8 ⁇ / 4) based on a wavelength between 400 nm and 700 nm.
  • the dielectric layer is transparent or translucent in the visible range.
  • the layer thickness of the dielectric layer is a constant layer thickness.
  • the security element preferably has a reflection layer, which is arranged on the side of the contrast layer facing away from the absorber layer.
  • the reflection layer is preferably a structured reflection layer. Further preferably, the reflective layer and the contrast layer are identical or substantially the same structure. In other words, the reflection layer and the contrast layer have congruent areas which are free from the reflection layer and the contrast layer.
  • the contrast layer is arranged between the absorber layer and the carrier material.
  • the contrast layer is arranged on the second main surface of the carrier material.
  • the method comprises suitable method steps for producing a security element having one or more of the aspects or properties described above.
  • the contrast layer is a structured layer.
  • the contrast layer comprises a layer of dark ink.
  • the contrast layer comprises a layer of a dark resist.
  • a further aspect relates to a value document, in particular a banknote, having a value document substrate and at least one security element which comprises one or more of the aspects described above.
  • a security element is preferably placed on or in a value document substrate.
  • a value document substrate may comprise paper, polymer or a paper-polymer combination.
  • the carrier material of the security element may be a subarea of the value-document substrate.
  • the value document substrate may be a polymer film and the support material of the security element is a portion of this polymer film.
  • the top side and the bottom side of the security element preferably run (substantially) parallel to the top side and bottom side of the value document substrate.
  • the top and bottom of the value document as well as the security element may also be referred to as major surfaces. These main surfaces represent relevant information to a viewer. Consequently, the main surfaces are visible to a viewer who views a value document with a security element.
  • a major surface of a bill may represent the value of the bill as well as its serial number.
  • an upper and lower side of a security element as well as a value document can also be regarded as the first and second main areas.
  • FIGS. 1a and 1b each show a schematic plan view of a main surface of a value document 100 with a value document substrate 102 and a security element 104, wherein the security element 104 is fixedly connected to the value document substrate 102, for. B. embedded in the value document substrate 102 or applied to the value document substrate.
  • the security element 104 may also be a subarea of the value document substrate 102.
  • the security element 104 has an area defined as area to be coated 106.
  • the region 106 to be coated is preferably a color shift or thin-film element region which has a partially-reflecting layer, an absorber layer and a dielectric layer.
  • the region 106 to be coated has a contrast layer-free region 108 and a contrast layer region 110.
  • FIG. 1a shows the number 45 as the contrast layer-free area 108a.
  • FIG. 1b shows three stripes as the contrast layer-free area 108b.
  • a contrast layer-free area may further have any shape or configuration.
  • a contrast layer-free area could be in the shape of a church or an animal.
  • a contrast-layer-free area allows a viewer to see the contrast-layer-free area in plan view and / or in view.
  • the security element is preferably more transparent in the contrast layer-free region than in the contrast layer region or at least semitransparent, so that at least part of the light striking the security element is transmitted in the contrast layer-free region.
  • the security element 104 comprises a carrier material which preferably consists of polyethylene terephthalate (PET) and has a region 106 to be coated.
  • the contrast layer region 110 which is a subregion or partial region of the region 106 to be coated, comprises at least a partially reflecting layer, a dielectric layer and at least one absorber layer.
  • the contrast layer-free area 108 has at least no contrast layer compared to the contrast layer area 110. Accordingly, it is clearly evident that the contrast layer is not present over the entire surface or uniformly in the region 106 to be coated, but only / exclusively in the contrast layer region 110. In other words, the contrast layer is present as a structured contrast layer.
  • Fig. 2 shows the sectional view of a security element 200 with a carrier material 201.
  • the carrier material 201 has a first main surface HF1a and a second major surface HF2a.
  • An absorber layer 202 is arranged on the main surface HF1a of the carrier material.
  • a dielectric layer 203 is disposed on the absorber layer 202.
  • a partially reflecting layer 204 is arranged.
  • a structured contrast layer 205 is arranged on the second main surface HF2a of the carrier material 201.
  • contrast layer-free regions 206 form.
  • the in Fig. 2 shown sectional view of a section through the "4" along the line II according to Fig. 1a or a part along the line II-II according to Fig. 1b correspond.
  • Fig. 3 shows a security element 300 having a (first) substrate 301a with a first major surface HF1a and a second major surface HF2a.
  • This sectional view may, for example, be a part of a sectional view along the line II, as in FIG Fig. 1a shown, or along the section line II-II according to Fig. 1b correspond.
  • Fig. 3 shows a partially reflective layer 304, a dielectric layer 303 and an absorber layer 302. These three layers 304, 303 and 302 are disposed on the first major surface HF1a of the (first) substrate 301a.
  • the security element 300 additionally has a second carrier material 301b, which has a first main surface HF1b.
  • a structured contrast layer 305 is arranged on the first main surface HF1b, so that contrast-layer-free regions 306 result. Furthermore, the security element 300 has an additional structured layer 308.
  • the additional patterned layer 308 may be, for example, a layer of magnetic ink.
  • the security element 300 results from joining together the (first) carrier material 301a and the (second) carrier material 301b.
  • the (first) substrate 301a and the (second) substrate 301b are assembled after arranging the layers 308 and 305.
  • a structure thus results, wherein the additional structured layer 308 and the structured contrast layer 305 are arranged on / on the second main surface HF2a of the (first) carrier material 301a.
  • Fig. 4 shows the sectional view of a security element 400 with a carrier material 401 a.
  • the (first) substrate 401a has a first major surface HF1a and a second major surface HF2a.
  • a contrast layer 405 Arranged on or on the first main surface HF1a is a contrast layer 405, which may be a structured contrast layer with contrast layer-free regions 406.
  • An additional structured layer 408 is disposed on / on the contrast layer 405.
  • an absorber layer 402 Over or on the additional structured layer 408, an absorber layer 402, a dielectric layer 403 and a partially reflecting layer 404 are arranged.
  • a (second) carrier material 401b is arranged.
  • the first main surface HF1a of the (first) carrier material 401a may be coated with the contrast layer 405 and the additional layer 408.
  • the second main surface HF2b of the (second) carrier material 401b can be coated with the layers 404, 403 and 402.
  • the second main surface HF2b of the (second) carrier material 401b and the first main surface HF1a of the (first) carrier material 401a can then be connected to one another.
  • an adhesive layer 407 can be used for this purpose.
  • FIG. 5 shows a schematic sectional view of a security element 500 with a carrier material 501a.
  • the (first) substrate 501a has a first major surface HF1a and a second major surface HF2a.
  • an absorber layer 502, a dielectric layer 503 and a partially reflecting layer 504 are arranged on or on of the first main surface HF1a.
  • An additional layer 508 and a contrast layer 505 are arranged on the second main surface HF2b of the (first) carrier material 501a.
  • a reflection layer 507 is disposed on the contrast layer 505. This reflection layer 507 can be produced by printing or by vapor deposition.
  • a (second) substrate 501b is arranged.
  • the reflection layer 507 and the contrast layer 505 preferably have the same patterning.
  • contrast-layer-free regions 506 are at the same time reflection-layer-free regions.
  • the first main surface HF1a of the (first) carrier material 501a can be coated with the layers 502, 503 and 504.
  • the first main surface HF2a of the (second) carrier material 501b can be coated with the additional layer 508, the contrast layer 505 and the reflection layer 507.
  • the first main surface HF1b of the (second) carrier material 501b and the second main surface HF2a of the (first) carrier material 501a can then be connected to one another.
  • an adhesive layer 509 can be used for this purpose.
  • a viewer of the security elements 200, 300, 400 and 500 can perceive a homogeneous color shift effect in the region 106 to be coated when viewed in reflected light, while the viewer can advantageously see the contrast layer-free regions 206, 306, 406 and 506, respectively, when viewed in transmitted light in the form of patterns, signs or motifs.

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

Claims (14)

  1. Élément de sécurité (200; 300; 500) comprenant :
    un matériau support (201; 301a; 501a) comportant une première et une deuxième face principale qui se font face ;
    une couche absorbante (202; 302; 502), une couche diélectrique (203; 303; 503) et une couche partiellement réfléchissante (204; 304; 504) agencée sur la première face principale ;
    cependant que la couche diélectrique (203; 303; 503) est agencée entre la couche absorbante (202; 302; 502) et la couche partiellement réfléchissante (204; 304; 504) et que la couche absorbante (202; 302; 502) est agencée entre la couche diélectrique (203; 303; 503) et le matériau support (201; 301a; 501a) ; et
    une couche de contraste (205; 305; 505) qui est la plus proche de la couche absorbante (202; 302; 502) en partant de la couche partiellement réfléchissante (204; 304; 504), de la couche diélectrique (203; 303; 503) et de la couche absorbante (202; 302; 502) ;
    cependant que le matériau support (201; 301a; 501a) est agencé entre la couche de contraste (205; 305; 505) et la couche absorbante (202; 302; 502), caractérise en ce que la couche de contraste (205; 305; 505) est une couche consistant en de l'encre d'impression foncée ou en un vernis resist foncé.
  2. Élément de sécurité selon la revendication 1, cependant que la couche de contraste (205; 305; 505) est une couche structurée ; et/ou que la couche de contraste (205; 305; 505) présente une épaisseur de couche comprise entre 1 µm et 15 µm, de préférence entre 2 µm et 4 µm.
  3. Élément de sécurité selon une des revendications 1 ou 2, cependant qu'une couche supplémentaire (308, 508) est agencée entre la couche absorbante (202; 302; 502) et la couche de contraste (205; 305; 505), cependant que la couche supplémentaire est une couche structurée et présente de préférence une épaisseur (constante) de couche comprise entre 1 µm et 15 µm.
  4. Élément de sécurité selon une ou plusieurs des revendications de 1 à 3, cependant que la couche partiellement réfléchissante (204; 304; 504) présente une épaisseur de couche comprise entre 5 nm et 50 nm, de préférence entre 10 nm et 30 nm, et est de préférence une couche métallique.
  5. Élément de sécurité selon une plusieurs des revendications de 1 à 4, cependant que la couche absorbante (202; 302; 502) présente une épaisseur de couche comprise entre 0,3 nm et 20 nm, de préférence entre 5 nm et 10 nm, et est de préférence une couche métallique.
  6. Élément de sécurité selon une plusieurs des revendications de 1 à 5, cependant que la couche diélectrique (203; 303; 503) présente une épaisseur optique de deux quarts de longueur d'onde relativement à une longueur d'onde de 400 nm jusqu'à neuf quarts de longueur d'onde relativement à une longueur d'onde de 700 nm, de préférence comprise entre deux et huit quarts de longueur d'onde relativement à une longueur d'onde comprise entre 400 nm et 700 nm, et est de préférence dans la zone visible une couche transparente ou translucide.
  7. Élément de sécurité selon une ou plusieurs des revendications de 1 à 6, cependant qu'une couche réfléchissante (507) est agencée du côté de la couche de contraste (205; 305; 505) non tourné vers la couche absorbante (202; 302; 502).
  8. Élément de sécurité selon une ou plusieurs des revendications de 1 à 7, cependant que la couche de contraste (205) est agencée sur la deuxième face principale du matériau support (201).
  9. Élément de sécurité selon une ou plusieurs des revendications de 1 à 7, cependant que l'élément de sécurité (200; 300; 400) comprend un deuxième matériau support (301b; 501b), cependant que la couche de contraste (305; 505) est agencée entre le premier matériau support (201; 301a; 501a) et le deuxième matériau support (301b; 501b).
  10. Élément de sécurité selon la revendication 9, cependant que
    la couche de contraste (305) est agencée sur une première face principale du deuxième matériau support (301b), ou
    une couche réfléchissante (507) est agencée sur la première face principale du deuxième matériau support (501b) et la couche de contraste (505) est agencée sur la couche réfléchissante (507).
  11. Procédé de fabrication d'un élément de sécurité comprenant les étapes :
    - mise à disposition d'un matériau support (201; 301a; 501a) ayant une première et une deuxième face principale qui se font face
    - agencement d'une couche absorbante (202; 302; 502), d'une couche diélectrique (203; 303; 503) et d'une couche partiellement réfléchissante (204; 304; 504) sur la première face principale ;
    cependant que la couche diélectrique (203; 303; 503) est agencée entre la couche absorbante (202; 302; 502) et la couche partiellement réfléchissante et que la couche absorbante (202; 302; 502) est agencée entre la couche diélectrique (203; 303; 503) et le matériau support (201; 301a; 501a) ;
    - agencement d'une couche de contraste qui est la plus proche de la couche absorbante (202; 302; 502) en partant de la couche partiellement réfléchissante (204; 304; 504), de la couche diélectrique (203; 303; 503) et de la couche absorbante (202; 302; 502),
    cependant que le matériau support (201; 301a; 501a) est agencé entre la couche de contraste (205; 305; 505) et la couche absorbante (202; 302; 502), et
    cependant que la couche de contraste (205; 305; 505) est une couche consistant en de l'encre d'impression foncée ou en un vernis resist foncé.
  12. Procédé selon la revendication 11, cependant que la couche de contraste (205; 305; 505) est une couche structurée.
  13. Procédé selon la revendication 11 pour la fabrication d'un élément de sécurité selon une des revendications de 2 à 10.
  14. Document de valeur (100), en particulier billet de banque, comportant un substrat de document de valeur et au moins un élément de sécurité (200; 300; 500) selon une ou plusieurs des revendications de 1 à 10.
EP16710097.3A 2015-03-20 2016-03-14 Élément de sécurité Active EP3271191B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015003665.3A DE102015003665A1 (de) 2015-03-20 2015-03-20 Sicherheitselement
PCT/EP2016/000459 WO2016150558A1 (fr) 2015-03-20 2016-03-14 Élément de sécurité

Publications (3)

Publication Number Publication Date
EP3271191A1 EP3271191A1 (fr) 2018-01-24
EP3271191B1 true EP3271191B1 (fr) 2019-03-13
EP3271191B2 EP3271191B2 (fr) 2025-10-29

Family

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Application Number Title Priority Date Filing Date
EP16710097.3A Active EP3271191B2 (fr) 2015-03-20 2016-03-14 Élément de sécurité

Country Status (6)

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US (1) US20180072088A1 (fr)
EP (1) EP3271191B2 (fr)
CN (1) CN107531074B (fr)
CA (1) CA2980366C (fr)
DE (1) DE102015003665A1 (fr)
WO (1) WO2016150558A1 (fr)

Citations (5)

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WO2006002756A2 (fr) 2004-07-05 2006-01-12 Giesecke & Devrient Gmbh Element de securite a effet changeant des couleurs par basculement
DE102008013167A1 (de) 2008-03-07 2009-09-10 Giesecke & Devrient Gmbh Sicherheitselement und Verfahren zu seiner Herstellung
WO2010000470A1 (fr) 2008-07-02 2010-01-07 Giesecke & Devrient Gmbh Élément de sécurité et son procédé de fabrication
WO2013090983A1 (fr) 2011-12-22 2013-06-27 Innovia Security Pty Ltd Dispositif de sécurité optique avec encre à nanoparticules
EP2708371A1 (fr) 2012-09-18 2014-03-19 Giesecke & Devrient GmbH Elément de sécurité optique variable avec effet visuel supplémentaire de réflexion/transmission

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CN101164797B (zh) * 2003-07-14 2012-07-18 Jds尤尼费斯公司 防伪线
DE102004049118A1 (de) * 2004-10-07 2006-04-13 Giesecke & Devrient Gmbh Sicherheitselement und Verfahren zu seiner Herstellung
CA2580321C (fr) * 2006-03-06 2014-11-04 Jds Uniphase Corporation Dispositifs de securite comprenant un adhesif a couleur changeante
DE102007034716A1 (de) * 2007-07-23 2009-01-29 Giesecke & Devrient Gmbh Sicherheitselement
DE102007061828A1 (de) * 2007-12-20 2009-06-25 Giesecke & Devrient Gmbh Sicherheitselement und Verfahren zu seiner Herstellung
DE102008029158A1 (de) * 2007-12-21 2009-06-25 Giesecke & Devrient Gmbh Sicherheitselement
DE102008028187A1 (de) 2008-06-12 2009-12-17 Giesecke & Devrient Gmbh Sicherheitselement mit optisch variablem Element.
DE102008032224A1 (de) * 2008-07-09 2010-01-14 Giesecke & Devrient Gmbh Sicherheitselement
DE102009041583A1 (de) 2009-09-15 2011-03-17 Giesecke & Devrient Gmbh Dünnschichtelement mit Interferenzschichtaufbau
DE102009058243A1 (de) * 2009-12-14 2011-06-16 Giesecke & Devrient Gmbh Dünnschichtelement mit Mehrschichtstruktur
PL2578414T3 (pl) * 2011-10-04 2014-05-30 Hueck Folien Gmbh Element zabezpieczający z efektem zmiany barw przy przechylaniu, sposób jego wytwarzania i jego zastosowanie

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006002756A2 (fr) 2004-07-05 2006-01-12 Giesecke & Devrient Gmbh Element de securite a effet changeant des couleurs par basculement
DE102008013167A1 (de) 2008-03-07 2009-09-10 Giesecke & Devrient Gmbh Sicherheitselement und Verfahren zu seiner Herstellung
WO2010000470A1 (fr) 2008-07-02 2010-01-07 Giesecke & Devrient Gmbh Élément de sécurité et son procédé de fabrication
WO2013090983A1 (fr) 2011-12-22 2013-06-27 Innovia Security Pty Ltd Dispositif de sécurité optique avec encre à nanoparticules
EP2708371A1 (fr) 2012-09-18 2014-03-19 Giesecke & Devrient GmbH Elément de sécurité optique variable avec effet visuel supplémentaire de réflexion/transmission

Also Published As

Publication number Publication date
CN107531074A (zh) 2018-01-02
EP3271191A1 (fr) 2018-01-24
US20180072088A1 (en) 2018-03-15
CA2980366C (fr) 2019-09-17
WO2016150558A1 (fr) 2016-09-29
CN107531074B (zh) 2020-01-07
CA2980366A1 (fr) 2016-09-29
EP3271191B2 (fr) 2025-10-29
DE102015003665A1 (de) 2016-09-22

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