EP3088202A2 - Substrat de document de valeur, feuille de laminage et document de valeur - Google Patents

Substrat de document de valeur, feuille de laminage et document de valeur Download PDF

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Publication number
EP3088202A2
EP3088202A2 EP16000944.5A EP16000944A EP3088202A2 EP 3088202 A2 EP3088202 A2 EP 3088202A2 EP 16000944 A EP16000944 A EP 16000944A EP 3088202 A2 EP3088202 A2 EP 3088202A2
Authority
EP
European Patent Office
Prior art keywords
substrate
value
document
security feature
layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP16000944.5A
Other languages
German (de)
English (en)
Other versions
EP3088202A3 (fr
EP3088202B1 (fr
Inventor
Peter Schiffmann
Christoph Dr. Mengel
Alexander Dr. Bornschlegl
Martin Dr. Imhof
Christine Traub-Mayer
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+Devrient 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+Devrient GmbH filed Critical Giesecke+Devrient GmbH
Publication of EP3088202A2 publication Critical patent/EP3088202A2/fr
Publication of EP3088202A3 publication Critical patent/EP3088202A3/fr
Application granted granted Critical
Publication of EP3088202B1 publication Critical patent/EP3088202B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • B42D25/29—Securities; Bank notes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • 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
    • B42D25/378—Special inks
    • B42D25/387—Special inks absorbing or reflecting ultraviolet light
    • 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
    • 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
    • B42D25/455—Associating two or more layers using heat

Definitions

  • the invention relates to a value-document substrate for producing value documents, in particular banknotes, a laminating film for the production of the value-document substrate and a value document with the value-document substrate.
  • Securities or identity documents, or other valuables, such as branded goods are often provided with security elements for the purpose of security, which permit verification of the authenticity of the data carriers and at the same time serve as protection against unauthorized reproduction.
  • Security elements with viewing-angle-dependent effects play a special role in the authentication of authenticity since they can not be reproduced even with the most modern copiers.
  • the security elements are equipped with optically variable elements that give the viewer a different image impression under different viewing angles and, for example, show a different color or brightness impression and / or another graphic motif depending on the viewing angle.
  • the color-shift effect in such thin-film elements is based on viewing angle-dependent interference effects due to multiple reflections in the different sub-layers of the element.
  • the path difference of the light reflected at the different layers depends, on the one hand, on the optical thickness of a dielectric spacer layer, which defines the distance between a semi-transparent absorber layer and a reflection layer, and on the other hand varies with the respective viewing angle. Since the path difference is on the order of the wavelength of the visible light, the result is an angle-dependent color impression for the viewer due to the extinction and amplification of certain wavelengths.
  • a suitable choice of material and thickness of the dielectric spacer layer a variety of different color shift effects can be designed.
  • pigment-like thin-film elements or interference pigments are known, which are mixed, for example, a printing ink.
  • Such interference pigments typically have a thin film structure that includes a reflective layer, a partially transparent layer, and one or more intervening dielectric spacer layers. These are based, for example, on mica, on SiO 2 or on Al 2 O 3 .
  • Such interference layers are referred to as one or more layers according to the number of dielectric layers.
  • Pigments such thin film interference layers are known for example under the name Iriodin ® (single layer) or Colorcrypt ® (multi-layer). Printing colors with multi-layer interference layer pigments are also known under the name OVI ®.
  • a subgroup of the interference pigments are pigments formed on the basis of a liquid crystal layer with a color shift effect.
  • Optically variable elements made of liquid crystal layers are mostly transparent and are known in the art (see for example the WO 2006/034780 A1 ).
  • the visual detectability of the color shift effect of a liquid crystal layer can be enhanced by means of a black background, which is produced, for example, by a black color layer as the background.
  • compositions with thermochromic pigments are used to produce an optically variable security feature.
  • an optical impression is created for the viewer, which differs from the visual impression before being exposed to heat.
  • Thermochromic inks based on encapsulated liquid crystals for example, have a first color at room temperature for the viewer on a black background and undergo a color change to a second color when exposed to temperature.
  • Leuco-Dyes are colored, e.g. black, and may change color as the temperature increases. In particular, a colored, e.g. black, leuco-dye become colorless.
  • thermochromic pigments may have significant sensitivity to UV radiation.
  • UV radiation is understood to mean electromagnetic radiation in the wavelength range of less than 380 nm, while the wavelength range from 380 nm to approximately 780 nm is referred to as "visible wavelength range”. Since daylight has some degree of UV radiation in the wavelength range of less than 380 nm, security elements or value documents with UV-sensitive, optically variable colorants are not very lightfast, i. the colorants are not resistant to UV radiation and change e.g. their color.
  • UV-A denotes a wavelength range of 380 to 315nm
  • UV-B a wavelength range of 315 to 280nm
  • UV-C a wavelength range of 280 to 200nm.
  • UV-drying paints and varnishes Due to the better durability and process advantages, there is a trend towards UV-drying paints and varnishes. This means that sensitive UV-curing materials can also be permanently damaged in their functionality through the use of UV dryers in the printing presses.
  • UV absorbers can be incorporated. Since the UV absorber is present statistically distributed in the binder and thus only a fraction of the added UV absorber protects the protected optically variable colorant from UV radiation, it is inevitable to work with high concentrations of the UV absorber. Against this background was in the EP 2 463 344 A1 proposed to protect the UV-sensitive, optically variable colorant in the form of a core-shell particle by means of a UV-radiation-absorbing shell. The encapsulation of the optically variable colorant inevitably leads to a reduction in the effective amount of colorant in the subsequent production of a printing ink, ie when introducing the core-shell particles into a binder matrix.
  • a further disadvantage is that the capsule wall for achieving the desired effect, namely a sufficient UV protection, must be sufficiently thick.
  • the relatively large particles obtained in this way can no longer be applied to a substrate to be printed by certain printing processes (for example by means of offset printing) in which the layer thickness of the applied printing ink is limited to thin layer thicknesses (eg a maximum of two micrometers). When applying the materials by screen printing, this leads to very high layer thicknesses.
  • the invention has for its object to overcome the disadvantages of the prior art.
  • the protection against counterfeiting of documents of value which contain UV-sensitive security features should be ensured in the long term.
  • a value-document substrate having on the front side a security feature which is sensitive to ultraviolet radiation is provided, with a transparent, UV-radiation-protecting, protective element for UV radiation To provide impermeable film as a cover.
  • the value-document substrate itself can be based, for example, on a paper substrate. Paper contains titanium dioxide and is therefore UV absorbing.
  • the document of value may further be coated on a (in particular transparent) polymer substrate, on a film / paper / film composite substrate (see, for example, US Pat WO 2004/028825 A2 ) or on a paper / foil / paper composite substrate (see eg WO 2006/066431 A1 ).
  • the central paper layer may have a recess to provide in this way a see-through window area in which, for example, the UV-labile security feature can be placed;
  • the UV-labile security feature covering film not only the UV-labile security feature covering film, but also at least one of the films of the film / paper / foil composite substrate at least in the region of the recess in the central paper layer in the form of a substantially impermeable to UV radiation film so that the security feature to be protected is protected on both sides by two foils.
  • the two outer paper layers may each have a recess to provide in this way a see-through window area in which, for example, the UV-labile security feature can be arranged;
  • the UV-labile security feature covering film but also the film of the paper / foil / paper composite substrate, at least in the region of the recesses in the paper layers in the form of a UV radiation substantially impermeable film, so the security feature to be protected is protected on both sides by two foils.
  • the value-document substrate may be based on a paper substrate which has a continuous recess, wherein the continuous recess on at least one side of the paper substrate is covered by a transparent film (see, for example, US Pat WHERE 2011/015622 A1 );
  • the UV-labile security feature can be arranged in the region of the continuous recess, in which case not only the film covering the UV-labile security feature, but also the transparent film covering the continuous recess in the form of a substantially impermeable to UV radiation Can be present film, so that the security feature to be protected is protected on both sides by two films.
  • the film covering the security feature may be in the form of a polymer substrate which is substantially impermeable to UV radiation at least in a sub-region, so that the security feature to be protected is protected on both sides by two films is.
  • Polymer-based value-document substrates are known in the art.
  • the transparent polymer substrate is coated on both sides with an opaque, titanium dioxide-containing and therefore UV-absorbing ink-accepting layer. By providing a recess in the opaque layer, a window area visible to the viewer can be created.
  • a substantially impermeable to UV radiation film can be obtained for example by the addition of special UV absorbers.
  • Suitable UV absorbers are, for example, Tinuvin types from BASF, benzotriazoles, nanoscale TiO 2 , titanium oxide doped with metal (in particular Fe, V and / or Cr), namely hindered amine light stabilizers.
  • Tinuvin are used as UV absorbers, with Tinuvin 400 and Tinuvin 1130 being particularly preferred.
  • Suitable film or polymer substrate are, for example, polyesters, polyolefins (for example PE, PP, BOPP), polyamides or polycarbonates.
  • Polyester films in particular polyethylene terephthalate films (PET films), are preferably used.
  • PET films polyethylene terephthalate films
  • the layer thickness of the film is for example 2 to 100 micrometers, preferably 2 to 20 micrometers.
  • the UV absorbers in the form of a separate coating layer or a printed layer on the film.
  • a film provided therewith can achieve the effect of a cut-off filter, so that the UV protection is complete at a certain wavelength.
  • the film has a yellowish coloration if the UV absorber concentrations are too high.
  • the UV absorber can also be used in the step of producing the film, e.g. by extrusion, are introduced into the film.
  • UV radiation substantially impermeable film is to be understood such that the electromagnetic radiation in the wavelength range of less than 380 nm in the transmission in an amount of at least 40%, preferably at least 80%, particularly preferably at least 90%, is reduced.
  • the value document according to the invention can be a banknote, in particular a paper banknote, a polymer banknote or a film composite banknote, a share, a bond, a certificate, a coupon, a check, a high-quality admission ticket, but also a banknote Card, such as a credit card, a bank card, a cash card, an authorization card, an identity card or Passpersonalticiansseite act.
  • a banknote Card such as a credit card, a bank card, a cash card, an authorization card, an identity card or Passpersonalticiansseite act.
  • FIG. 1 shows a valuable document substrate according to the invention according to the first aspect of the invention.
  • the substrate used is an opaque paper substrate 1, which may optionally be provided with perforations, recesses or windows 1b.
  • the paper substrate 1 is partially overprinted with a black paint 5a (eg, with a carbon black-based paint).
  • a thermochromic, black color 5b based on so-called Leuco-Dyes is used.
  • the black, thermochromic paint 5b is black at room temperature and has a release temperature of 30 ° C. When the temperature is raised to 30 ° C., the thermochromic ink in particular becomes colorless.
  • the black paint 5a, 5b is partially provided with a thermochromic, encapsulated liquid crystal based screen printing ink 2.
  • thermochromic screen printing ink 2 is sensitive to UV radiation. Above the thermochromic screen printing ink 2 is a transparent effect color 4. In the layer 4, the region 4b is merely optional, ie not mandatory. The areas 4a are mandatory.
  • the layer 4 may be based, for example, on interference pigments or on a crosslinked liquid crystal layer with a color shift effect. When viewing the front of the banknote, the color shift effect of the transparent layer 4 becomes visible due to the black background 5a, 5b.
  • the thermochromic paint 2 is in the non-activated state, ie at room temperature, transparent (ie transparent on black background). When the temperature increases, the color of the thermochromic screen printing ink 2 changes, for example, to a blue-green.
  • the paper substrate 1 is at least on the front with a laminated, transparent, for UV radiation in Substantially impervious film 3 provided.
  • a PET film is used, which has a coating based on a UV absorber-containing composition to increase the UV-opacity on its front and / or back.
  • additional layers may be present, eg, a heat-seal adhesive layer sandwiched between paper substrate and film, a primer layer, and / or a paint-accepting layer (which is preferably opaque and based on TiO 2 ) which was omitted for simplicity's drawing.
  • the UV absorber may alternatively be incorporated in the film itself, e.g., in the step of producing the film, the UV absorber may be extruded into the film by extrusion.
  • FIG. 2 shows the production of a value-document substrate according to the first aspect of the invention.
  • the paper substrate 1 is partially overprinted with a black, soot-based paint 5a.
  • a thermochromic, black color 5b based on so-called Leuco-Dyes is used.
  • the black, thermochromic paint 5b is black at room temperature and has a release temperature of 30 ° C. When the temperature increases, the color becomes, in particular, colorless.
  • the in the FIG. 2 The laminating film shown is applied in a subsequent step by means of pressure and elevated temperature to the paper substrate 1 containing the black printing layer 5a, 5b.
  • area 4b is merely optional, ie not mandatory.
  • the areas 4a are mandatory.
  • FIG. 3 shows a further production of a value-document substrate according to the first aspect of the invention.
  • the paper substrate 1 is partially overprinted with a black, soot-based paint 5a.
  • a thermochromic, black color 5b based on so-called leucodyes is used.
  • the black, thermochromic paint 5b is black at room temperature and has a release temperature of 30 ° C. When the temperature increases, the color becomes, in particular, colorless.
  • the in the FIG. 3 shown laminating film is applied in a subsequent step by means of pressure and elevated temperature to the black print layer 5a, 5b containing paper substrate 1.
  • the transparent hologram 7 and the thermochromic ink layer 2 an attractive thermochromic hologram can be obtained.
  • FIG. 4 shows a valuable document substrate according to the invention.
  • the substrate used is a polymer substrate 8 with opaque regions 8a and a transparent region 8b.
  • a polymer substrate As a polymer substrate, a 90 micron thick BOPP film is used, which has a coating on the basis of a UV absorber-containing composition to increase the UV-opacity especially in the transparent area 8b on its front and / or back (in the figure is the before UV protective coating not shown).
  • the UV-absorbing coating can also serve as a primer for the ink acceptance or adhesion of one or more further print layers.
  • the polymer substrate may also contain UV absorbers extruded into the polymer.
  • the polymer substrate 8 is provided with a black leuco dye-based thermochromic coating.
  • As a protection against UV radiation is a film 10, which has a (volume) hologram. The metallization of the hologram is impermeable to UV radiation.
  • FIG. 5 shows a valuable document substrate according to the invention.
  • the substrate used is a paper substrate 8 with opaque paper regions 8a and an opening or recess 8b.
  • the opening 8b forms a Window area.
  • a black ink layer 11 Within the aperture is a black ink layer 11.
  • the window portion of the paper substrate 8 is covered from both sides by a film 12,17.
  • the film 12 and the film 17 each have a coating based on a UV absorber-containing composition (reference Nos. 13 and 18).
  • the film 12 is additionally provided with a transparent or translucent optically variable layer 14.
  • the layer 14 is in particular a crosslinked liquid crystal layer with a color shift effect.
  • Between the window region of the paper substrate 8 and the further film 17 are a thermochromic ink-based coating 15 and a black ink layer 16.
  • the coating 15 is based in particular on (encapsulated) liquid crystals.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Laminated Bodies (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Credit Cards Or The Like (AREA)
EP16000944.5A 2015-04-28 2016-04-27 Substrat de document de valeur et document de valeur Active EP3088202B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015005451.1A DE102015005451A1 (de) 2015-04-28 2015-04-28 Wertdokument-Substrat, Laminierfolie und Wertdokument

Publications (3)

Publication Number Publication Date
EP3088202A2 true EP3088202A2 (fr) 2016-11-02
EP3088202A3 EP3088202A3 (fr) 2017-04-12
EP3088202B1 EP3088202B1 (fr) 2019-07-03

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Application Number Title Priority Date Filing Date
EP16000944.5A Active EP3088202B1 (fr) 2015-04-28 2016-04-27 Substrat de document de valeur et document de valeur

Country Status (2)

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EP (1) EP3088202B1 (fr)
DE (1) DE102015005451A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4000940A1 (fr) * 2020-11-20 2022-05-25 IDEMIA France Document de sécurité dans lequel une fenêtre comprend une partie ovm et une partie en matériau photochromique ou thermochromique

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004028825A2 (fr) 2002-09-19 2004-04-08 Giesecke & Devrient Gmbh Papier de securite
WO2006034780A1 (fr) 2004-09-24 2006-04-06 Giesecke & Devrient Gmbh Element de securite optiquement variable
WO2006066431A1 (fr) 2004-12-23 2006-06-29 Landqart Structure multicouche servant de substrat d'impression et procede de fabrication
WO2011015622A1 (fr) 2009-08-06 2011-02-10 Giesecke & Devrient Gmbh Procédé pour fabriquer un élément de sécurité et élément de sécurité pouvant être obtenu selon le procédé
EP2463344A1 (fr) 2010-12-08 2012-06-13 Giesecke & Devrient GmbH Utilisation d'un liant polymère

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7654581B2 (en) * 2005-05-06 2010-02-02 Canadian Bank Note Company, Limited Security document with ultraviolet authentication security feature
GB2452078B (en) * 2007-08-23 2009-12-23 Rue De Int Ltd Security devices for security substrates
DE102012111113B4 (de) * 2012-11-19 2019-03-28 Bundesdruckerei Gmbh Wert- und/oder Sicherheitsdokument sowie Sicherheitselement hierfür

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004028825A2 (fr) 2002-09-19 2004-04-08 Giesecke & Devrient Gmbh Papier de securite
WO2006034780A1 (fr) 2004-09-24 2006-04-06 Giesecke & Devrient Gmbh Element de securite optiquement variable
WO2006066431A1 (fr) 2004-12-23 2006-06-29 Landqart Structure multicouche servant de substrat d'impression et procede de fabrication
WO2011015622A1 (fr) 2009-08-06 2011-02-10 Giesecke & Devrient Gmbh Procédé pour fabriquer un élément de sécurité et élément de sécurité pouvant être obtenu selon le procédé
EP2463344A1 (fr) 2010-12-08 2012-06-13 Giesecke & Devrient GmbH Utilisation d'un liant polymère

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ANGEWANDTE CHEMIE, vol. 122, 2010, pages 2 - 13

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4000940A1 (fr) * 2020-11-20 2022-05-25 IDEMIA France Document de sécurité dans lequel une fenêtre comprend une partie ovm et une partie en matériau photochromique ou thermochromique

Also Published As

Publication number Publication date
DE102015005451A1 (de) 2016-11-03
EP3088202A3 (fr) 2017-04-12
EP3088202B1 (fr) 2019-07-03

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