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EP4054854B1 - Document de valeur - Google Patents

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Publication number
EP4054854B1
EP4054854B1 EP20806933.6A EP20806933A EP4054854B1 EP 4054854 B1 EP4054854 B1 EP 4054854B1 EP 20806933 A EP20806933 A EP 20806933A EP 4054854 B1 EP4054854 B1 EP 4054854B1
Authority
EP
European Patent Office
Prior art keywords
value document
layer
opaque
film element
cutout
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
EP20806933.6A
Other languages
German (de)
English (en)
Other versions
EP4054854A1 (fr
Inventor
Björn Teufel
Giselher Dorff
Christoph Gebauer
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 EP4054854A1 publication Critical patent/EP4054854A1/fr
Application granted granted Critical
Publication of EP4054854B1 publication Critical patent/EP4054854B1/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
    • B42D25/324—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
    • B42D25/333—Watermarks
    • 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
    • B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials

Definitions

  • the invention relates to a value document based on a plastic substrate, wherein the plastic substrate has a first surface and a second surface, each of which is provided with an opaque, first or second ink-accepting layer having a recess, wherein the two recesses form a window region of the value document and the first surface of the plastic substrate has a colored thin-film element in the region of the opaque, first ink-accepting layer provided with a recess.
  • Valuable documents based on a plastic substrate e.g. polymer banknotes or plastic banknotes
  • a plastic substrate e.g. polymer banknotes or plastic banknotes
  • a plastic substrate e.g. polymer banknotes or plastic banknotes
  • Publication EL Prime e.g. the Publication EL Prime, DH Solomon, Angewandte Chemie, 2010, Volume 122, pages 2 to 13 BOPP films in the form of co-extruded laminates are often used as a substrate, the surface of which is treated with an opaque ink-receiving layer based on a filler and a binder in order to improve the printability with printing ink.
  • Transparent windows can be created by means of recesses within the opaque ink-receiving layers applied to the front and back of the plastic substrate.
  • the WO 2014/006416 A2 describes a security document having a security device comprising a first pattern of elements and a second overlapping pattern of elements spaced apart by a transparent layer, the first and second patterns in combination impeding the passage of light transmitted to a viewer through the device to a varying extent depending on the viewing position.
  • the first and second Element patterns are configured such that a first region has a maximum change in the degree of obstruction when the device is tilted relative to the viewer about a first tilt axis, and a second region of the device has a maximum change in the degree of obstruction when the device is tilted relative to the viewer about a second tilt axis that is not parallel to the first tilt axis.
  • the WO 2014/006416 A2 does not disclose that the colored thin-film element is formed in the form of a first motif.
  • the WO 2017/081447 A1 describes a method for manufacturing a pixel array for an optically variable security device.
  • the method comprises: providing a manufacturing tool having a surface pattern of ink-accepting elements spaced apart by regions that are not ink-accepting, the ink-accepting elements defining the pixels of the desired pixel array; applying a multi-colored first image formed from a plurality of colors only to the ink-accepting elements of the surface pattern and not to the regions therebetween; and transferring only the portions of the multi-colored first image corresponding to the pixels of the desired pixel array from the manufacturing tool to a substrate by bringing the plurality of colors on the surface pattern into contact with the substrate or with a transfer assembly that then contacts the substrate, thereby forming a pixel array on the substrate.
  • the present invention is based on the object of improving the forgery security of value documents based on a plastic substrate.
  • viewing in reflected light means illuminating the value document from one side and viewing the value document from the same side. Viewing in reflected light therefore occurs, for example, when the front of the value document is illuminated and also viewed.
  • viewing in transmitted light means illuminating a valuable document from one side and viewing the valuable document from another side, in particular the opposite side. Viewing in transmitted light thus occurs, for example, when the back of the valuable document is illuminated and the front of the valuable document is viewed. The light thus shines through the valuable document.
  • the present invention is based on the idea of equipping the transparent window of a value document based on a plastic substrate, in particular a polymer banknote, with a colored thin-film element in order to improve the security against counterfeiting.
  • Colored thin-film elements whose color impression changes for the viewer with the viewing angle are, for example, from the WO 2009/080263 A2 known.
  • the color shift effect in such thin-film elements is based on viewing angle-dependent interference effects caused by multiple reflections in the various sub-layers of the element.
  • the path difference of the light reflected by the various layers depends on the optical thickness of a dielectric spacer layer (e.g. a SiO 2 layer), which determines the distance between a semi-transparent absorber layer (e.g. a Cr layer) and a reflection layer (e.g. an Al layer), and on the other hand varies with the respective viewing angle.
  • the path difference is in the order of magnitude of the wavelength of visible light
  • the extinction and amplification of certain wavelengths results in an angle-dependent color impression for the viewer.
  • the shape of the transparent window can be elegantly modulated by the opaque ink-accepting layers applied to the front and back.
  • transparent windows can be created.
  • Congruent, e.g. overlapping, recesses within the two opaque ink-accepting layers can be used to create windows with a semi-transparent area and a transparent area.
  • the modulation of the two opaque ink-accepting layers in combination with a colored thin-film element applied on one side leads to interesting and advantageous optical window effects.
  • interesting foreground/background effects can be achieved in the window area of the security document, in which the colored thin-film element represents a motif in the foreground and the opaque ink-accepting layer on the back of the security document, printed in particular with a colored printing ink, represents a background - or vice versa.
  • Such windows with an additional optical "foreground/background effect" cannot be achieved with conventional paper banknotes, in which a recess is first created in the paper in a first production step by means of punching or laser cutting and in a subsequent second production step the recess is covered with a colored film security element.
  • the colored thin-film element (hereinafter also referred to simply as "security element”) can be provided, for example, starting from transfer tapes with a plurality of security elements designed as transfer elements or transfer patches.
  • Transfer tapes are characterized by the fact that the security elements are prepared on a carrier layer, whereby the order of the layers of the transfer elements is usually reversed compared to the layer order later present on the object to be protected.
  • the carrier layer is typically peeled off from the layer structure of the security elements during transfer.
  • the transfer tapes On the carrier layer On the opposite side, the transfer tapes have an adhesive layer, usually made of a hot-seal adhesive or hot-seal varnish, which melts when the security elements are transferred and bonds the security elements to the object to be secured.
  • the transfer tape is placed on the object with the hot-seal adhesive layer and pressed onto it using a heated transfer stamp or a transfer roller and transferred to the object in the outline of the heated transfer stamp.
  • Transfer elements, transfer tapes and the transfer of transfer elements to target substrates are, for example, in the EP 0 420 261 B1 and the WO 2005/108108 A2 described.
  • the colored thin-film element can also have a permanent carrier substrate, for example a plastic film.
  • a permanent carrier substrate for example a plastic film.
  • the total thickness of the final security document in the window area is increased in this way.
  • a security element transfer material in the form of a continuous material in which security elements are pre-cut in the desired outline shapes and the pre-cut elements can then be transferred to the products to be secured without the risk of the carrier material tearing is known from the WO 2010/031543 A1 known.
  • the security element transfer material is an endless material, in particular a band with a length of several hundred meters and a width of a few millimeters/centimeters up to several meters.
  • the security element transfer material has a security element layer composite, i.e. the actual security element material, and a temporary carrier, i.e.
  • the temporary carrier is based, for example, on a carrier layer composite consisting of a first and a second temporary carrier substrate, which are permanently bonded by means of an adhesive layer.
  • the security element layer composite is connected to a temporary carrier either directly or by means of a release layer.
  • the release layer is of a conventional type and facilitates the detachment of the security elements from the temporary carrier during the transfer process to a valuable object.
  • the temporary carrier is located on the side of the security element layer composite that faces a viewer after the security elements have been transferred.
  • temporary carrier substrates expresses that these carrier substrates, in contrast to the "permanent" carrier substrate, are not part of the security elements.
  • the Figure 1 shows a first embodiment of a value document 1 according to the invention, in the example a banknote with the denomination "20", in plan view.
  • the value document 1 comprises a value document substrate 2 based on plastic, which is provided on its first surface and on its second surface with an opaque ink-receiving layer.
  • the opaque ink-receiving layer is in the Figure 1 in a shade of grey and is based on an inorganic filler and a binder. Suitable ink-receiving layers, the opacity of which can be adjusted depending on the choice of the underlying composition, are available in the State of the art known, see e.g. the WO 2010/130755 A2 and the WO 2012/003947 A1 .
  • the Figure 1 shows the value document 1 when viewed from above onto the first surface.
  • the value document 1 has a window area 3, which is formed by recesses in the opaque color-accepting layers.
  • the value document 1 also has a colored thin-film element 4.
  • the colored thin-film element 4 in the present example is a semi-transparent thin-film element, which gives a viewer a golden color impression when viewed in reflected light and a bluish color impression when viewed in transmitted light.
  • the colored thin-film element comprises two semi-transparent mirror layers, one Al layer each, and a dielectric spacer layer arranged between the two mirror layers, namely a SiO 2 layer.
  • Such a thin-film element, which appears gold in reflected light and bluish in transmitted light is e.g.
  • the Al/SiO 2 Al layer system of the colored thin-film element 4 is located above a UV embossing varnish, which is provided with an embossed relief, e.g. in the form of a hologram structure.
  • the UV embossing varnish is connected to the value document substrate 2 by means of an adhesive layer.
  • the viewer perceives the colored thin-film element 4 in golden color when viewed in incident light and also sees an additional optically variable effect depending on the viewing angle as a result of the hologram structure.
  • the colored thin-film element 4 appears to the viewer in a bluish color in transmitted light.
  • the colored thin-film element 4 is surrounded in a ring shape by a transparent window area.
  • the Figure 1 The denomination "20" shown with the reference number 5 was printed in dark ink on the security document 1.
  • the Figure 2 shows the value document 1 in cross-sectional view along the Figure 1
  • the block arrow "A" indicates the position shown in the Figure 1 illustrated view of the value document 1 in plan view of the first surface of the value document 1.
  • the value document substrate 1 comprises a plastic substrate 6, in the example a coextruded laminate with the layer sequence LLDPE/BOPP/LLDPE/LLDPE/BOPP/LLDPE.
  • the plastic substrate 6 is provided on its first surface and on its second surface with a first opaque ink-receiving layer 7 and a second opaque ink-receiving layer 8, respectively, which have a recess in the window area 3.
  • the colored thin-film element 4 is arranged on the first surface of the plastic substrate 6 in the window area 3.
  • the reference number 5 represents the dark printing ink with which the Figure 1 shown denomination "20" of the value document 1 is generated.
  • the Figure 3 shows a second embodiment of a value document 9 according to the invention, in the example a banknote, in plan view.
  • the value document 9 comprises a value document substrate 10 based on plastic, which is provided on its first surface and on its second surface with an opaque ink-receiving layer.
  • the opaque ink-receiving layer is in the Figure 3 in a shade of grey and is based on an inorganic filler and a binder.
  • the Figure 3 shows the value document 9 when viewed from above onto the second surface.
  • the value document 9 has a window area 11, which is formed by recesses in the opaque ink-accepting layers. In the window area 11, the value document 9 also has a colored thin-film element 12.
  • the colored thin-film element 12 is a semi-transparent thin-film element which gives the viewer a golden color impression when viewed in incident light and a bluish color impression when viewed in transmitted light, and is based on an Al/SiO 2 /Al layer system.
  • the colored thin-film element 12 is located above a UV embossing varnish which is provided with an embossed relief, e.g. in the form of a hologram structure.
  • the UV embossing varnish is connected to the value document substrate 10 by means of an adhesive layer. The viewer perceives the colored thin-film element 12 in golden color when viewed in incident light and also sees an additional optically variable effect depending on the viewing angle as a result of the hologram structure.
  • the colored thin-film element 12 appears to the viewer in bluish color in transmitted light.
  • the colored thin-film element 12 is surrounded in a ring shape by a transparent window area.
  • the value document 9 has an additional area with an opaque ink-receiving layer that can be printed with printing ink. The optical attractiveness of the colored thin-film element 12 is enhanced in this way.
  • the Figure 4 shows the value document 9 in cross-sectional view along the Figure 3
  • the block arrow "A" indicates the line shown in the Figure 3 illustrated view of the value document 9 in plan view of the second surface of the value document 9.
  • the value document substrate 10 comprises a plastic substrate 14, in the example a coextruded laminate with the layer sequence LLDPE/BOPP/LLDPE/LLDPE/BOPP/LLDPE.
  • the plastic substrate 14 is provided on its first surface and on its second surface with a first opaque ink-accepting layer 15 and a second opaque ink-accepting layer 16, respectively, which have a recess in the window area 11.
  • the reference number 13 shows an additional area with an opaque ink-accepting layer, which is opposite the colored thin-film element 12.
  • the colored thin-film element 12 is arranged on the first surface of the plastic substrate 14 in the window area 11.
  • the value document 9 has an additional area with an opaque ink-accepting layer in the area 13, which can be printed with printing ink. The visual attractiveness of the colored thin-film element 12 is enhanced in this way.
  • the Figure 5 shows a third embodiment of a value document 17 according to the invention, in the example a banknote, in plan view.
  • the value document 17 comprises a value document substrate 18 based on plastic, which is provided on its first surface and on its second surface with an opaque ink-receiving layer.
  • the opaque ink-receiving layer is in the Figure 5 in a shade of grey and is based on an inorganic filler and a binder.
  • the Figure 5 shows the value document 17 when viewed from above onto the second surface.
  • the value document 17 has a window area 19, which is formed by recesses in the opaque ink-receiving layers.
  • the value document 17 also has a colored thin-film element 20 in the shape of a sun and, in addition, sun rays 21 obtained with red printing ink.
  • the colored thin-film element 20 in the present example is a semi-transparent thin-film element, which gives a viewer a golden color impression when viewed in incident light and a bluish color impression and is based on an Al/SiO 2 /Al layer system.
  • the colored thin-film element 20 is located above a UV embossing varnish, which is provided with an embossed relief, e.g. in the form of a hologram structure.
  • the UV embossing varnish is connected to the value document substrate 18 by means of an adhesive layer.
  • the colored thin-film element 20 appears to the viewer in bluish color in transmitted light.
  • the colored thin-film element 12 is surrounded in a ring by a transparent window area.
  • the optical attractiveness of the colored thin-film element 20 is enhanced by the additional sun rays 21 in red printing ink.
  • the Figure 6 shows the value document 17 in cross-sectional view along the Figure 5
  • the block arrow "A" indicates the line shown in the Figure 5 illustrated view of the value document 17 in plan view of the second surface of the value document 17.
  • the value document substrate 17 comprises a plastic substrate 181, in the example a coextruded laminate with the layer sequence LLDPE/BOPP/LLDPE/LLDPE/BOPP/LLDPE.
  • the plastic substrate 181 is provided on its first surface and on its second surface with a first opaque ink-accepting layer 182 and a second opaque ink-accepting layer 183, respectively, which have a recess in the window area 19.
  • the recesses are not congruent, but the recess in the second opaque ink-accepting layer 183 has smaller dimensions than the recess in the first opaque ink receiving layer 182.
  • the colored thin-film element 20 is arranged in the window area 19.
  • the reference number 21 represents the red printing ink, which is used in the Figure 5 that produce red rays of sunlight.
  • the Figure 7 shows a paper banknote 22 provided with a foil security element 24 in the area of a paper recess 25 according to a comparative example.
  • the paper banknote 22 is based on a paper substrate 23 which has a recess produced by punching or laser cutting in the dashed area 25.
  • the recess 25 is covered with a foil security element 24.
  • the foil security element 24 is based on a polyethylene terephthalate foil which is provided with a UV embossing varnish with hologram relief and a colored thin-film element with the layer sequence Al/SiO 2 Al formed above the UV embossing varnish.
  • the foil security element 24 is connected to the paper substrate 23 by means of an adhesive layer.
  • the colored thin-film element with the layer sequence Al/SiO 2 /Al is perceptible to the observer in golden color when viewed in incident light and in bluish color when viewed in transmitted light.
  • the Figure 8 shows the paper banknote 22 in cross-sectional view along the Figure 7
  • the dashed line shown in the Figure 8 It can be seen from the arrangement shown that the value document 22 in the paper recess 25 opposite the film security element 24 can only be printed with difficulty with additional patterns that are available by printing technology, so that the expert has relatively little design freedom with regard to the optical enhancement of the window area.
  • the Figure 9 shows a fourth embodiment of a value document 26 according to the invention, in the example a banknote, in plan view.
  • the value document 26 comprises a value document substrate 27 based on plastic, which is provided on its first surface and on its second surface with an opaque ink-receiving layer.
  • the opaque ink-receiving layer is in the Figure 9 in a shade of grey and is based on an inorganic filler and a binder.
  • the Figure 9 shows the value document 26 when viewed from above onto the first surface.
  • the value document 26 has a window region 28 which is formed by cutouts in the opaque ink-accepting layers. In the window region 28, the value document 26 also has a colored thin-film element 29 which, with respect to its circumference, partially extends beyond the window region 28.
  • the colored thin-film element 29 is a semi-transparent thin-film element which gives a viewer a golden color impression when viewed in incident light and a bluish color impression when viewed in transmitted light, and is based on an Al/SiO 2 /Al layer system.
  • the colored thin-film element 29 is located above a UV embossing varnish which is provided with an embossed relief, e.g. in the form of a hologram structure.
  • the UV embossing varnish is connected to the value document substrate 27 by means of an adhesive layer.
  • the observer perceives the colored thin-film element 29 as a golden color when viewed in incident light and also sees an additional optically variable effect depending on the viewing angle due to the hologram structure.
  • the colored thin-film element 29 appears to the observer as a bluish color in transmitted light.
  • the colored thin-film element 29 is surrounded by a transparent window area in the shape of a crescent moon on its upper side and on its lower side.
  • the Figure 10 shows the value document 26 in cross-sectional view along the Figure 9 shown dashed line B-B'.
  • the block arrow "A" indicates the Figure 9 illustrated view of the value document 26 in plan view of the first surface of the value document 26.
  • the value document substrate 26 comprises a plastic substrate 30, in the example a coextruded laminate with the layer sequence LLDPE/ BOPP/ LLDPE/ LLDPE/ BOPP/ LLDPE.
  • the plastic substrate 30 is provided on its first surface and on its second surface with a first opaque ink-accepting layer 31 and a second opaque ink-accepting layer 32, respectively, which have a recess in the window area 28.
  • the colored thin-film element 29 is arranged on the first surface of the plastic substrate 30 in the window area 28.
  • the recess in the second opaque ink-receiving layer 32 along the axis BB' of the Figure 9 is smaller than the recess in the first opaque ink-receiving layer 31, so that the colored thin-film element 29 is partially covered by the second opaque ink-receiving layer 32 and can thus be printed with printing ink.
  • the optical attractiveness of the colored thin-film element 29 is enhanced in this way.
  • the Figure 11 shows the value document 26 in cross-sectional view along the Figure 9 shown dashed line C-C'.
  • the block arrow "A" indicates the Figure 9 illustrated view of the value document 26 in plan view of the first surface of the value document 26.
  • the Figure 12 shows an embodiment of a security element transfer material 33, from which a colored thin-film element (eg with the reference number 4 in the Figures 1 and 2 ) for producing the value document according to the invention.
  • the dashed line DD' shows the area at which the upper material is later detached from the temporary carrier during the application of the upper material (ie the material to be applied to the value document as a transfer element and containing the colored thin-film element) to a value document.
  • the security element transfer material 33 contains a polyethylene terephthalate (PET) film 34 as a temporary carrier, which is permanently connected to a further polyethylene terephthalate (PET) film 36 by means of an adhesive layer 35.
  • PET polyethylene terephthalate
  • the reference number 37 designates a release layer. Adjacent to this are a primer varnish 38, a colored thin-film element 39 provided with recesses and having the layer sequence Al/SiO 2 /Al, a UV embossing varnish 40 and an adhesive layer 41 suitable for bonding to the plastic substrate of the value document according to the invention.
  • the Figure 13 shows a further embodiment of a security element transfer material 42, from which a colored thin-film element (eg with the reference number 4 in the Figures 1 and 2 ) for the production of the value document according to the invention.
  • the dashed line EE' shows the area at which the upper material is detached from the temporary carrier later in the course of applying the upper material (ie the material to be applied to the value document as a transfer element and containing the colored thin-film element) to a value document.
  • the security element transfer material 42 contains, as a temporary carrier, a coextruded film containing the layers 43 and 44, which are permanently connected to one another along the boundary layer between the layers 43 and 44.
  • the reference number 45 designates a release layer. Adjacent to this is a colored Thin-film element 46 with the layer sequence Al/SiO 2 /Al, a UV embossing varnish 47, an adhesive layer 48, a permanent film substrate 49 (in the example a PET film) and an adhesive layer 50 suitable for bonding to the plastic substrate of the value document according to the invention.
  • the upper material containing the colored thin-film element 46 by means of the adhesive layer 50 to the plastic substrate of the value document according to the invention, the upper material is subsequently detached from the temporary carrier along the Figure 13 shown dashed line E-E'.
  • the upper material containing the layers 45 to 50 has an additional, permanent film substrate 49 and thus has an increased layer thickness. In this way, value documents can be achieved which have a visually attractive design in the window area and, in view of the increased layer thickness in the window area, are also advantageous with regard to the haptic perception of the value document.
  • plastic substrate of the value document the above embodiments were based only by way of example on a coextruded laminate with the layer sequence LLDPE/BOPP/LLDPE/LLDPE/BOPP/LLDPE.
  • plastic substrates known in the art can of course be used.
  • film composite substrates can also be used, e.g. a film/paper/film composite substrate, see e.g. the WO 2004/028825 A2 , or a paper/foil/paper composite substrate.
  • the opaque ink-receiving layers can differ from one another in terms of opacity. This allows interesting watermark effects to be achieved, particularly in the window area.

Landscapes

  • Laminated Bodies (AREA)
  • Credit Cards Or The Like (AREA)
  • Confectionery (AREA)

Claims (14)

  1. Document de valeur (1, 9, 17, 26) comprenant un substrat plastique (6, 14, 181, 30) ayant une première surface et une deuxième surface, une première couche opaque de prise d'encre (7, 15, 182, 31), pourvue d'un évidement, étant disposée sur la première surface du substrat plastique (6, 14, 181, 30) et une deuxième couche opaque de prise d'encre (8, 16, 183, 32), pourvue d'un évidement, étant disposée sur la deuxième surface du substrat plastique (6, 14, 181, 30), et les deux évidements formant une zone fenêtre (3, 11, 19, 28) du document de valeur (1, 9, 17, 26), la première surface du substrat plastique (6, 14, 181, 30) présentant dans la zone fenêtre un élément en couche mince colorée (4, 12, 20, 29), l'élément en couche mince colorée (4, 12, 20, 29) étant formé sous forme d'un premier motif, et la deuxième couche opa que de prise d'encre (8, 16, 183, 32) étant formée sous forme d'un deuxième motif sur la face opposée à l'élément en couche mince colorée (4, 12, 20, 29), le premier motif et le deuxième motif se complétant, lors de l'observation du document de valeur (1, 9, 17, 26) selon un angle normal sur la première surface du substrat plastique (6, 14, 181, 30) dans la zone fenêtre du document de valeur (1, 9, 17, 26) de telle sorte que le deuxième motif représente au moins partiellement un fond pour le premier motif.
  2. Document de valeur (1, 9, 17, 26) selon la revendication 1, dans lequel la deuxième couche opaque de prise d'encre (8, 16, 183, 32), disposée sur la deuxième surface du substrat plastique (6, 14, 181, 30), présente une zone opaque (13) de couche de prise d'encre, opposée à l'élément en couche mince colorée (4, 12, 20, 29) formé sur la première surface du substrat plastique (6, 14, 181, 30).
  3. Document de valeur (1, 9, 17, 26) selon la revendication 1 ou 2, dans lequel l'évidement de la première couche opaque de prise d'encre (7, 15, 182, 31) et l'évidement de la deuxième couche opaque de prise d'encre (8, 16, 183, 32) présentent les mêmes dimensions, c'est-à-dire recouvrent la même surface.
  4. Document de valeur (1, 9, 17, 26) selon l'une des revendications 1 à 3, dans lequel l'évidement de la première couche opaque de prise d'encre (7, 15, 182, 31) et l'évidement de la deuxième couche opaque de prise d'encre (8, 16, 183, 32) présentent des dimensions différentes, c'est-à-dire sont disposés en chevauchement, ou un évidement, en particulier l'évidement de la deuxième couche opaque de prise d'encre (8, 16, 183, 32) est au moins partiellement disposé à l'intérieur de l'autre évidement.
  5. Document de valeur (1, 9, 17, 26) selon l'une des revendications 1 à 4, dans lequel l'élément en couche mince colorée (4, 12, 20, 29) qui dans la zone fenêtre est formé sur la première surface du substrat plastique (6, 14, 181, 30) présente des dimensions plus petites que l'évidement de la première couche opaque de prise d'encre (7, 15, 182, 31), c'est-à-dire est disposé à l'intérieur de l'évidement de la première couche opaque de prise d'encre (7, 15, 182, 31).
  6. Document de valeur (1, 9, 17, 26) selon l'une des revendications 1 à 4, dans lequel l'élément en couche mince colorée (4, 12, 20, 29) qui est formé dans la zone fenêtre sur la première surface du substrat plastique (6, 14, 181, 30) présente au moins partiellement des dimensions plus grandes que l'évidement de la couche opaque de prise d'encre (7, 15, 182, 31), c'est-à-dire recouvre en totalité ou en partie l'évidement de la première couche opaque de prise d'encre (7, 15, 182, 31).
  7. Document de valeur (1, 9, 17, 26) selon l'une des revendications 1 à 6, dans lequel l'élément en couche mince colorée (4, 12, 20, 29) est un élément en couche mince goniochromatique, qui donne à un observateur une impression colorée différente pour différents angles d'observation, par exemple un élément en couche mince qui comprend une couche réfléchissante, une couche d'écartement diélectrique et une couche absorbante.
  8. Document de valeur (1, 9, 17, 26) selon l'une des revendications 1 à 6, dans lequel l'élément en couche mince colorée (4, 12, 20, 29) est un élément en couche mince semi-transparente, qui donne à un observateur, quand il regarde par-dessus, et lors d'une observation en lumière transmise, une impression colorée différente, par exemple un élément en couche mince qui comprend deux couches spéculaires semi-transparentes et une couche d'écartement diélectrique disposée entre les deux couches spéculaires.
  9. Document de valeur (1, 9, 17, 26) selon l'une des revendications 1 à 8, dans lequel l'élément en couche mince colorée (4, 12, 20, 29) est assemblé à la première surface du substrat plastique (6, 14, 181, 30) à l'aide d'une couche adhésive.
  10. Document de valeur (1, 9, 17, 26) selon l'une des revendications 1 à 9, dans lequel l'élément en couche mince colorée (4, 12, 20, 29) est formé sous forme d'un élément de sécurité en feuille présentant un substrat plastique, et est assemblé à la première surface du substrat plastique (6, 14, 181, 30) à l'aide d'une couche adhésive.
  11. Document de valeur (1, 9, 17, 26) selon l'une des revendications 1 à 10, dans lequel le substrat plastique (6, 14, 181, 30) du document de valeur (1, 9, 17, 26) est à base de polyéthylène, de térylène, de poly(chlorure de vinyle), de polypropylène, de polypropylène biorienté ou d'un film ou d'un stratifié coextrudé comportant plusieurs des matériaux mentionnés ci-dessus, en particulier un stratifié coextrudé ayant la séquence de couches LLDPE/PP/LLDPE ou LLDPE/BOPP/LLDPE/LLDPE/BOPP/LLDPE.
  12. Document de valeur (1, 9, 17, 26) selon l'une des revendications 1 à 10, dans lequel le substrat plastique (6, 14, 181, 30) du document de valeur (1, 9, 17, 26) est un substrat composite feuille/papier/feuille ou un substrat composite papier/feuille/papier.
  13. Document de valeur (1, 9, 17, 26) selon l'une des revendications 1 à 12, dans lequel la première couche opaque de prise d'encre (7, 15, 182, 31) et la deuxième couche opaque de prise d'encre (8, 16, 183, 32) comprennent chacune une charge et un liant, et peuvent éventuellement se présenter avec des opacités différentes.
  14. Document de valeur (1, 9, 17, 26) selon l'une des revendications 1 à 13, dans lequel le document de valeur (1, 9, 17, 26) est un billet de banque, en particulier un billet de banque polymère ou un billet de banque en feuille composite, un document d'identité ou une carte de paiement.
EP20806933.6A 2019-11-06 2020-10-29 Document de valeur Active EP4054854B1 (fr)

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DE102019007696.6A DE102019007696A1 (de) 2019-11-06 2019-11-06 Wertdokument
PCT/EP2020/025482 WO2021089184A1 (fr) 2019-11-06 2020-10-29 Document de valeur

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DE3932505C2 (de) 1989-09-28 2001-03-15 Gao Ges Automation Org Datenträger mit einem optisch variablen Element
DE10243653A1 (de) 2002-09-19 2004-04-01 Giesecke & Devrient Gmbh Sicherheitspapier
EP2287011B1 (fr) 2004-04-30 2017-06-28 Giesecke & Devrient GmbH Elément de sécurité et son procédé de fabrication
DE102007061828A1 (de) 2007-12-20 2009-06-25 Giesecke & Devrient Gmbh Sicherheitselement und Verfahren zu seiner Herstellung
DE102008047641A1 (de) 2008-09-17 2010-04-15 Giesecke & Devrient Gmbh Sicherheitselement-Transfermaterial mit mehrschichtigem Träger
DE102009020846A1 (de) 2009-05-12 2010-11-25 Giesecke & Devrient Gmbh Farbannahmeschicht mit Aussparung
DE102009058243A1 (de) 2009-12-14 2011-06-16 Giesecke & Devrient Gmbh Dünnschichtelement mit Mehrschichtstruktur
DE102010026071A1 (de) 2010-07-05 2012-01-05 Giesecke & Devrient Gmbh Transparente Farbannahmeschicht
GB201212046D0 (en) * 2012-07-06 2012-08-22 Rue De Int Ltd Security devices
GB201520085D0 (en) * 2015-11-13 2015-12-30 Rue De Int Ltd Methods of manufacturing image element arrays for security devices

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DE102019007696A1 (de) 2021-05-06
AU2020378537A1 (en) 2022-06-02
WO2021089184A1 (fr) 2021-05-14
EP4054854A1 (fr) 2022-09-14

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