EP2621734B1 - Substrat apte au stockage et element de securite pour la fabrication de billets de banque, billet de banque et procede de fabrication associe - Google Patents

Substrat apte au stockage et element de securite pour la fabrication de billets de banque, billet de banque et procede de fabrication associe Download PDF

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Publication number
EP2621734B1
EP2621734B1 EP11773675.1A EP11773675A EP2621734B1 EP 2621734 B1 EP2621734 B1 EP 2621734B1 EP 11773675 A EP11773675 A EP 11773675A EP 2621734 B1 EP2621734 B1 EP 2621734B1
Authority
EP
European Patent Office
Prior art keywords
substrate
ink
absorption layer
ink absorption
security element
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
EP11773675.1A
Other languages
German (de)
English (en)
Other versions
EP2621734A2 (fr
Inventor
Patrick Renner
Winfried HOFFMÜLLER
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 GmbH
Original Assignee
Giesecke and Devrient GmbH
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Publication date
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Publication of EP2621734A2 publication Critical patent/EP2621734A2/fr
Application granted granted 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
    • B42D25/40—Manufacture
    • B42D25/45—Associating two or more layers
    • B42D25/465—Associating two or more layers using chemicals or adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
    • B41M5/52—Macromolecular coatings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M7/00—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock
    • B41M7/0072—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock using mechanical wave energy, e.g. ultrasonics; using magnetic or electric fields, e.g. electric discharge, plasma
    • 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
    • B42D25/355—Security threads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40—Manufacture
    • B42D25/405—Marking
    • B42D25/41—Marking using electromagnetic radiation
    • 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
    • B42D25/465—Associating two or more layers using chemicals or adhesives
    • B42D25/47—Associating two or more layers using chemicals or adhesives using adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M2205/00—Printing methods or features related to printing methods; Location or type of the layers
    • B41M2205/28—Storage stability; Improved self life
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
    • B41M5/52—Macromolecular coatings
    • B41M5/5263—Macromolecular coatings characterised by the use of polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • B41M5/5281—Polyurethanes or polyureas
    • B42D2033/04—
    • B42D2033/20—
    • B42D2033/30—
    • B42D2035/36—
    • 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 substrate suitable for storage for the production of value documents, a security element suitable for storage for the production of value documents, a value document and method for the production thereof.
  • DE 195 02 646 discloses a method for printing coated surfaces in the transfer printing process, wherein a coating material is used, which is partially crosslinked before the transfer printing, and thus is quasi thermoplastic, and which is crosslinked during transfer or finally.
  • the printed surfaces are postcrosslinked by means of ultraviolet, infrared or electron irradiation.
  • EP 2 042 335 A2 discloses an ink jet printing method wherein a primer liquid is applied to a data carrier and the primer liquid is partially cured. Subsequently, an image with an ink is applied to the primer liquid, which is cured by irradiation.
  • Value documents within the meaning of the present invention are, for example, bank notes, stocks, bonds, certificates, vouchers, checks, lottery tickets, high-quality entrance tickets, passports, identity cards, credit cards and others flat valuables.
  • Such flat valuables can be, for example, packaging for optionally high-quality products.
  • the term value document also encompasses all precursors of finished value documents which, for example, are not yet fit for circulation, such as, among others, security paper, film or film composites. Such a value document can also only be part of a valuable item.
  • a security element in the sense of the present invention can For example, a window or see-through window, which is formed for example by a transparent film, a security thread to be a typographically generated feature such as a micro-print, a film strip, a patch or a label.
  • a security element in particular a security element in the form of a security thread or a film strip, can be designed as an optically variable security element, wherein in the context of the present invention an optically variable security element is understood to be an optical element whose visual impression produced by a viewer depends on the viewing direction that is to say the perspective of the viewer on the optical element and possibly also of the direction of incidence of an illumination light beam.
  • optically variable security elements are diffraction structures that produce a viewing angle-dependent visual impression, in particular by reconstructing optically perceivable patterns, such as emboss or volume holograms and other kinegrams, such as achromatic matte structures.
  • optically variable elements are optical elements that exhibit a so-called color shift effect, such as single or multi-layer thin-layer interference layers or liquid crystal layers, which can be present as a continuous layer or in pigment form (so-called effect pigments such as iriodines).
  • lens or micromirror structures within an optically variable security element Such optical elements have in common that they are usually based on a polymer layer, such as a plastic film, constructed or at least comprise a polymer layer as a cover or protective layer.
  • security elements In the specific case that the optical element is constructed on the basis of a plastic film, the element may be referred to as an optical film element.
  • one measure would be to provide the ink receiving layer with a reduced layer thickness or with a filler content such that the opacity and / or the clouding effect of the ink receiving layer is reduced so as to ensure improved perceptibility of a security element.
  • this has the disadvantage that thereby deteriorates the adhesion and drying of the ink of the applied additional imprint. If the requirement for a good ink acceptance, a more or less pronounced turbidity above the security element must be accepted. On the other hand, if there is a requirement, for example, to produce a clear inspection window, then one is satisfactory ink acceptance of the printing ink of the further imprint on the window so far not possible.
  • the prior art paint-receiving layers heretofore used in value document substrates have been formulated to be as absorbent as possible in terms of their chemical composition in order to avoid the so-called setting of e.g. in oils and non-reactive components contained in offset and steel engraving inks.
  • This drying step is indispensable for the further processing of the printed value documents.
  • the absorbency of the ink-accepting layer is also advantageous for the physical drying of water-based or organic solvent-based gravure, flexographic or screen printing inks.
  • a strong opacity or at least a clear clouding inevitably resulted.
  • a sufficiently high absorbency inevitably resulted in a layer thickness of the ink-accepting layer of at least 4 ⁇ m.
  • high energy curable inks are used to make a value document according to the present invention.
  • high-energy radiation is meant here UV radiation or electron radiation.
  • Inks that are curable by high-energy radiation generally have a high Solid fraction and are based for example on unsaturated acrylates or on epoxides.
  • the use of high-energy-curable printing inks results in new demands on the ink-accepting layer.
  • the dissolution or absorption of the reactive constituents contained in the ink in the ink-accepting layer should be avoided here in order not to worsen the subsequent curing of the ink by the action of radiation and the adhesion of the ink to the substrate.
  • a high pumping speed for the ink receiving layer is therefore unnecessary.
  • the layer thickness of the ink-receiving layer can be reduced in this way, for example to a value within a range of 0.5 to 2 microns.
  • a second aspect of the invention relates to a substrate, which is particularly adapted for the method for producing a banknote according to the first aspect.
  • the substrate according to the second aspect of the invention is a substrate suitable for storage for the production of banknotes, comprising a post-crosslinkable by the action of high-energy radiation ink receiving layer.
  • the substrate comprises a security element which is arranged in or on the substrate in such a way that a first surface of the security element forms a common surface with a first surface of the substrate, which can be post-crosslinked by the action of high-energy radiation Ink acceptor layer is arranged over the entire surface of the common surface or at least partially above the first surface of the security element or at least partially over the first surface of the substrate.
  • the high-energy-postcrosslinkable ink-receiving layer provided to the substrate according to the second aspect of the invention is a radical-curing ink-receiving layer.
  • the high-energy-postcrosslinkable ink-accepting layer is a radical-curing ink-receiving layer obtainable by physically drying a dispersion based on unsaturated urethane acrylates.
  • physical drying is meant here the evaporation of water or organic solvent. The physical drying results in a dry, non-sticky, by the action of high-energy radiation, such. UV radiation or electron beams, postcrosslinkable ink receiving layer.
  • a substrate provided with such a physically dried, high energy radiation postcrosslinkable ink acceptor layer is suitable for storage and may be supplied to the customer who wishes to print the substrate to produce a value document including high energy radiation curable inks at any time.
  • the substrate provided in step (a) comprises a security element which is arranged in or on the substrate in such a way that a first surface of the security element forms a common surface with a first surface of the substrate, and the ink receiving layer which can be postcrosslinked by the action of high-energy radiation is over the entire surface the common surface or at least part of the surface above the first surface of the security element or at least part of the surface above the first surface of the substrate is arranged, wherein the ink receiving layer (5) postcrosslinkable by the action of high-energy radiation is a free-radically curing ink receiving layer or a cationic curing ink receiving layer.
  • the good interlayer adhesion presumably goes to cross-links, eg covalent chemical bonds, between the printing ink and the ink-accepting layer in the case of joint hardening or Postcrosslinking of the printing ink and the ink receiving layer back.
  • cross-links eg covalent chemical bonds
  • plastics for example plastic banknotes
  • a fourth aspect of the invention relates to a security element suitable for storage for the production of banknotes, comprising at least one ink receiving layer that can be postcrosslinked by the action of high-energy radiation, which is arranged over a first surface of the security element over part or all of its surface.
  • Printing inks which can be cured by high-energy radiation (for example UV radiation or electron beams) are known from the prior art (see, for example, US Pat Helmut Kipphan, "Handbuch der Printmedien", Springer-Verlag, 2000, page 140 ; see eg DE 42 22 576 A1 ).
  • the substrate may preferably be provided with a security element, e.g. is designed as a window, security thread, film strip, optically variable security element, printing technology generated feature or as a patch or label.
  • a security element e.g. is designed as a window, security thread, film strip, optically variable security element, printing technology generated feature or as a patch or label.
  • the security element may be arranged in or on the substrate such that a first surface of the security element forms a common surface with a first surface of the substrate.
  • the ink receiving layer can be arranged over the entire surface above the common surface.
  • a full-surface arrangement of the ink-accepting layer is advantageous, for example, if the entire surface of a value-document substrate is to be provided with a printing ink curable by high-energy radiation.
  • the ink-accepting layer may be arranged at least partially over the first surface of the security element or at least partially over the first surface of the substrate.
  • the ink accepting layer disposed above a first surface of the security element and / or above a first surface of the substrate may be e.g. be applied directly to a film or polymer or plastic layer of the security element or directly to the substrate.
  • the ink accepting layer may be separated from the security element and / or substrate by one or more further, preferably transparent layers (such as a plastic film).
  • the ink-receiving layer used in the present invention is suitable for the ink acceptance of high-energy-curable printing inks.
  • the ink receiving layer preferably has no or only a small proportion of filler of less than 5 wt .-%.
  • the ink receiving layer advantageously forms the uppermost layer and thus ensures the ink acceptance, the adhesion and the drying of the printing ink of the further imprint.
  • the additional imprint can be applied by means of an offset method, a gravure printing method or another suitable printing method. This can be a background pressure.
  • the inventive use of curable by high-energy radiation inks allows the reduction of the thickness of the ink receiving layer and thus an undisturbed perception of a security element underneath. In particular, no impairment occurs the perceptibility by a matting or haze.
  • the security element is a simple window or see-through window formed, for example, on the basis of a transparent film, the use of the thin ink accepting layer in combination with radiation-cured inks will still allow for clear viewing through the window.
  • the security element consists of an optically variable security element, then the thin ink accepting layer in combination with radiation-cured printing inks allows a perception of an unimpaired optically variable effect.
  • the layer thickness of the ink-accepting layer is preferably 0.5 to 5 ⁇ m, with a layer thickness of 1 to 2 ⁇ m being particularly preferred.
  • the ink receiving layer usable for the manufacturing method according to the first aspect of the invention is a paint accepting layer which is not post-crosslinkable after being applied to the substrate or security element and after physical drying by the action of high-energy radiation.
  • Such ink acceptor layers are based in particular on physically drying dispersions of saturated, unreactive acrylates.
  • a formulation example of a paint receiving layer which is not postcrosslinked by the action of high energy radiation is mentioned (in% by weight):
  • the ink-receiving layer usable for the manufacturing method according to the first aspect of the invention is a paint-receiving layer which is post-crosslinkable after being applied to the substrate or security element by the action of high-energy radiation.
  • a postcrosslinkable ink receiving layer may be a radical curing ink receiving layer or a cationic curing ink receiving layer.
  • Cationic curing ink-receiving layers are generally not physically drying.
  • subsequent application of the high energy curable ink is preferably "in-line", i. E. in one operation.
  • a high energy curable ink can be applied to the ink receiving layer in a subsequent printing unit, e.g. in the form of signs or patterns.
  • the postcrosslinkable, cationic curable ink acceptor layer and the high energy curable ink are co-fired by high energy radiation, e.g. UV radiation or electron beams, cured. The co-curing leads to a particularly good interlayer adhesion.
  • Suitable cationic curing ink-receiving layers may be based, for example, on epoxy systems or polyol systems.
  • formulation examples for cationically curing, color-accepting layers which are post-crosslinkable by the action of high-energy radiation are stated (in% by weight):
  • EBECRYL 8402 50% EBECRYL 8402 (CYTEC company); 8% 2-hydroxy-2-methyl-1-phenyl-propan-1-one, for example DAROCUR 1173 (CIBA); 42% GENOMER 1122 (company RAHN).
  • Radically curing ink-receiving layers are particularly preferred for use as the high-energy-postcrosslinkable ink-accepting layer. Radically curing ink-receiving layers are based on dispersions which physically dry after being applied to the security element or substrate, more specifically, are predried by evaporation of the solvent and subsequently postcrosslinked by the action of high-energy radiation.
  • the on this Obtained substrates according to the second aspect of the invention are suitable for storage and can be stacked without mutual bonding. In addition, mutual bonding can be improved by introducing so-called spacers into the ink-receiving layer.
  • silica gels, waxes or polyolefin waxes such as polypropylene, PTFE and products with the trade names SYLOID 244, SYLOID W300, AEROSIL R 8200 GRACE or DEGUSSA can be used.
  • high-energy radiation ink for example in the form of characters or patterns, preferably "offline", ie at the customer.
  • the post-crosslinkable, radically curing ink-accepting layer and the energy-curable ink are then cured together by high-energy radiation, for example UV radiation or electron beams.
  • high-energy radiation for example UV radiation or electron beams.
  • the co-curing leads to a particularly good interlayer adhesion.
  • free radical curable ink receiving layers obtainable by physically drying a dispersion based on unsaturated urethane acrylates (e.g., aromatic urethane acrylates) are preferred.
  • unsaturated urethane acrylates e.g., aromatic urethane acrylates
  • formulation examples for radically curing dye-receiving layers which can be postcrosslinked by the action of high-energy radiation are indicated (in% by weight):
  • LAROMER LR 9005 BASF
  • IRGACURE 819 DW CIBA company
  • LAROMER LR 8983 96% LAROMER LR 8983 (BASF); 4% IRGACURE 500 (CIBA company).
  • the ink receiving layers usable in the present invention may additionally have fillers to a limited extent as long as the absorbency of the ink receiving layer for the high energy radiation curable ink to be applied is not thereby increased too much.
  • the filler content is preferably less than 5 wt .-%.
  • boehmite, pseudo-boehmite, zeolite, Al 2 O 3 or silica gel or a mixture of these substances can be used as the filler.
  • these fillers preferably have a particle size in a range of 1 nm to 1 ⁇ m, with the range of 5 nm to 200 nm being particularly preferred.
  • boehmite or pseudo-boehmite is preferred.
  • Böhmit means loud " Römpp Lexikon der Chemie”, 10th edition, Georg Thieme Verlag, 1996 , the rhombic crystalline metahydroxide ⁇ -AlO (OH), which is obtainable for example from crystalline Al (OH) 3 by heating for 14 days at 150 ° C in the sealed tube with dehydration.
  • the adhesion of the ink-receiving layers used according to the invention to plastic layers, in particular plastic films, can additionally be improved by means of a suitable pressure pretreatment by means of corona, plasma or flame.
  • the dye-receiving layers used according to the invention can also be used as a starting point for the development of nontransparent ink receiving layers.
  • the formulation of the ink receiving layer, other additives, such as pigments, added, which produce the desired opaque property can be used as a suitable pressure pretreatment by means of corona, plasma or flame.
  • pigments such as TiO 2 (eg KRONOS 2044), BaSO 4 , CaCO 3 , Or polymer-based hollow sphere pigments such as "ROPAQUE" from Rohm & Haas or also effect pigments which produce a pearlescent or a metallic luster, interference pigments, liquid crystal pigments, thermochromic or magnetic pigments, or pigments which produce a phosphorescence or fluorescence or a have antistatic effect, be.
  • a color accepting layer has, for example, a high opacity due to its additives, it is advisable, if appropriate, to realize a desired base color of the security element or of a substrate via the ink accepting layer.
  • Opacity can also be achieved by anti-static equipment, eg FT 2000 from ISHIHARA SANGYO KAISHA LTD.
  • An antistatic equipment is also possible by adding about 2% ammonium salts (eg PN 1041 from BOSCH LABORATORIES).
  • a preferred embodiment relates to a document of value having a substrate and a security feature, security thread, film strip, patch or label formed security feature as a see-through window or window, wherein the ink acceptor layer partially above the security element or part of the surface above the substrate, preferably over the entire surface above the common surface deposited by a first surface of the security element with a first surface of the substrate.
  • the security element further preferably comprises a polymer layer, for example a plastic film, on which the ink-accepting layer is applied. Such a security element can be generated directly in or on a value document to be secured.
  • such a security element may be a security element suitable for storage for the production of value documents according to the fourth aspect of the invention, which is prepared on an optional, separate carrier as a transfer element.
  • a separate carrier preferably has one Plastic or polymer material and may for example be a film material, in particular a transfer material, or have.
  • Plastics such as PET (polyethylene terephthalate), PBT (polybutylene terephthalate), PEN (polyethylene naphthalate), PP (polypropylene), PA (polyamide) and PE (polyethylene) come into consideration for the film material.
  • This sheet material may also be monoaxially or biaxially stretched.
  • the attachment of the security element according to the fourth aspect of the invention on a security document to be secured takes place with the aid of an adhesive layer, for which purpose preferably a hot-melt adhesive is used.
  • an adhesive layer for which purpose preferably a hot-melt adhesive is used.
  • the carrier material is optionally removed again so that the security element remains on the security document to be secured.
  • the ink receiving layer serves as a release layer or release layer.
  • the security element according to the fourth aspect of the invention may be formed as a patch or label and, for example, have a flat shape with comparable length dimensions in all directions or an elongated shape, for example in the form of a strip, as in security threads or film strips , for example so-called LEAD strips, is the case.
  • a security element is designed as a transfer element with an optionally transparent film as a carrier, it is also referred to as a film element, foil patch or film strip.
  • Single or multi-layer substrates can be used as the substrate according to the invention and as the substrate provided for the production of the value document according to the invention.
  • Any kind of paper or paper-like material is considered, in particular cotton vellum paper. It is also possible to use paper which contains a certain proportion x of a polymer material in the range from 0 to 100% by weight.
  • a plastic layer for example a plastic film, or a film composite can be used as the substrate. Such a film may additionally be monoaxially or biaxially stretched. Such a stretching of the film leads inter alia to obtaining polarizing properties which can be used as a security feature in the value document.
  • a multilayer composite comprising, for example, a layer of paper or a paper-like material can be used.
  • a transparent plastic or polymer layer is laminated from both sides, whereby such a multilayer composite has an extremely high stability and durability.
  • security papers are used with plastic or polymer coated paper layers for the production of composite film banknotes.
  • the multilayer composite may also comprise a central layer of a plastic or polymeric material, which is coated on both sides with a respective layer of paper or a paper-like material.
  • a multilayer, paper-free composite material can also be used as a multilayer substrate material.
  • the security element which is provided in the substrate according to the invention and in the value document according to the invention as a preferred embodiment, can be arranged on the surface of the substrate. However, it may also be arranged within the substrate and, for example, only partially contact the surface of the substrate, as is the case with security threads such as window or pendulum security threads.
  • the security element can also fill a recess in the substrate, as is the case with windows, in particular see-through windows.
  • the security element can also be arranged below a transparent layer, for example a plastic film, or be embedded within the transparent layer.
  • the ink accepting layer may be placed directly on the common surface of the security element and the substrate.
  • a further transparent layer for example a plastic film, in particular a PET film or polyester film, is arranged between the common surface and the ink-accepting layer.
  • the transparent layer forms, for example, a cover or protective layer for the security element and the substrate.
  • the ink receiving layer then ensures printability with the high energy curable ink of another print.
  • the further transparent layer is preferably arranged directly on the common surface and / or the ink-accepting layer is deposited directly on the further transparent layer, e.g. a plastic film, arranged.
  • an opaque ink-accepting layer which is not postcrosslinked by the action of high-energy radiation is additionally arranged above the common surface.
  • the opaque ink accepting layer is preferably arranged outside, that is to say when the value document is viewed in incident light not above the security element.
  • the security element is preferably completely only of the post-crosslinkable by the action of high-energy radiation ink receiving layer overdrawn.
  • Such a configuration allows an arrangement of a printable by conventional inks opaque ink receiving layer on the document of value, without affecting the visibility of the security element, at the same time a good printability of the document of value above the security element is guaranteed by curable by high-energy radiation inks.
  • FIGS. 1a and 1b is shown as a document of value a banknote with a substrate 1.
  • the denomination "50" is printed on the substrate 1.
  • the substrate 1 of the document of value consists in the embodiment of a paper or a paper-like material and has a correspondingly high ink receptivity and good printability for an applied, in FIG. 1a not shown, further imprint.
  • a security element 2 in the present case, an optical film element, further arranged, which is a transfer element in the illustrated embodiment.
  • the security element 2 comprises an adhesive layer 3, which comprises an activatable adhesive, for example a hot melt adhesive.
  • the central film constituent 4 of the optical film element 2 is fixed on the surface of the substrate 1.
  • the optical film element 2 further comprises a post-crosslinkable by the action of high-energy radiation ink accepting layer 5.
  • the ink receiving layer 5 is in the present case, a free-radically curing ink receiving layer by physically drying a on unsaturated urethane acrylates based dispersion is available (eg based on the above formulation 6 or Formulation 7).
  • the ink accepting layer 5 is suitable for the ink acceptance of high energy radiation curable inks. Accordingly, the resulting surface of the banknote in the region of the optical film element 2 consists of the ink accepting layer 5 and the remainder of the surface of the substrate 1. Accordingly, good printability is created over the entire surface of the entire document of value, ie the ink receptivity of the substrate is achieved by applying of the described, designed as a transfer element optical film element is not affected.
  • FIG. 2a a second embodiment of a value document is shown in the form of a banknote.
  • the value document in turn comprises a substrate 1, which may consist of paper or a paper-like material or else of plastic or a film.
  • the substrate is typically (but not necessarily) opaque.
  • a color accepting layer 5 suitable for the ink acceptance of printing inks which are curable by high-energy radiation can be arranged directly on this common surface.
  • the ink receiving layer 5 can be obtained, for example, from the above-mentioned formulations 1 to 7.
  • This in FIG. 2a illustrated embodiment is a composite film banknote, in which substrate 1, as well as window 6 and security thread 7 of a plastic layer 8, for example a PET film, are coated.
  • the ink receiving layer 5 is arranged directly on the plastic layer 8 in this case.
  • the ink receiving layer 5 thus forms a uniform surface of the document of value and thus provides a uniform ink receptivity to high energy curable inks on the entire document of value.
  • FIG. 2b in section shown another embodiment differs from the in FIG. 2a illustrated embodiment by an additional opaque ink receiving layer 9, which is suitable for the color image of conventional, non-radiation-curing inks.
  • the ink accepting layer 5, which is suitable for color pickup of high-energy-curable printing inks, is disposed above the opaque ink-receiving layer 9, that is, the ink-receiving layer 5 is coated in a later step than the opaque ink receiving layer 9 applied.
  • the ink-accepting layer 5 has the same thickness as the opaque ink-accepting layer 9.
  • the layer thickness of the ink accepting layer 5 suitable for ink-accepting radiation-curing inks preferably has a value within a range of 0.5 to 5 ⁇ m, more preferably 1 to 2 ⁇ m.
  • the layer thickness of the ink-accepting layer 5 is less than the layer thickness of the opaque ink-accepting layer 9, which is suitable for the ink acceptance of conventional printing inks and typically has a value of at least 4 ⁇ m.
  • the invention has been described with reference to security elements formed as optical film elements, which are formed on the basis of a film.
  • security elements formed as optical film elements, which are formed on the basis of a film.
  • the present invention is not limited to optical film elements. It could just as security elements are used, which have a polymer film instead of a plastic film.
  • the security element may be, for example, a feature produced by printing technology, for example a microprint.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Plasma & Fusion (AREA)
  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Credit Cards Or The Like (AREA)
  • Ink Jet Recording Methods And Recording Media Thereof (AREA)
  • Printing Methods (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Claims (11)

  1. Substrat (1) approprié au stockage et destiné à la fabrication de billets de banque, comprenant
    une couche de réception d'encre (5) post-réticulable par effet de rayonnement énergétique, le substrat (1) comprenant un élément de sécurité (6, 7) qui est agencé de telle manière dans ou sur le substrat (1) qu'une première surface de l'élément de sécurité (6, 7) forme avec une première surface du substrat (1) une surface commune,
    la couche de réception d'encre (5) post-réticulable par effet de rayonnement énergétique étant agencée au moins sur une partie de la surface au-dessus de la première surface de l'élément de sécurité (6, 7), étant une couche de réception d'encre à durcissement par radicaux et pouvant être obtenue par séchage physique d'une dispersion basée sur acrylates d'uréthane insaturés.
  2. Substrat selon la revendication 1, caractérisé en ce que l'élément de sécurité (6, 7) est réalisé en tant que fenêtre, fil de sécurité, ruban de film, caractéristique générée par impression, patch ou étiquette.
  3. Substrat selon la revendication 1 ou 2, caractérisé en ce qu'une couche transparente (8), de préférence un film en matière plastique, est agencé(e) entre le substrat (1) et la couche de réception d'encre (5).
  4. Élément de sécurité approprié au stockage et destiné à la fabrication de billets de banque, comprenant au moins une couche de réception d'encre post-réticulable par effet de rayonnement énergétique agencée sur une partie de la surface ou sur toute la surface au-dessus d'une première surface de l'élément de sécurité, étant une couche de réception d'encre à durcissement par radicaux et pouvant être obtenue par séchage physique d'une dispersion basée sur acrylates d'uréthane insaturés.
  5. Procédé de fabrication d'un billet de banque comportant les étapes :
    (a) mise à disposition d'un substrat (1) qui comprend une couche de réception d'encre (5);
    (b) application d'une encre d'impression durcissable par effet de rayonnement énergétique sur la couche de réception d'encre (5); et
    (c) exposition du substrat (1) à un rayonnement énergétique, de telle sorte que l'encre d'impression est durcie, le substrat (1) mis à disposition à l'étape (a) comprenant un élément de sécurité (6, 7) qui est agencé de telle sorte dans ou sur le substrat (1) qu'une première surface de l'élément de sécurité (6, 7) forme avec une première surface du substrat (1) une surface commune, et la couche de réception d'encre (5) étant agencée au moins sur une partie de la surface au-dessus de la première surface de l'élément de sécurité (6, 7) et étant une couche de réception d'encre post-réticulable par effet de rayonnement énergétique, et, à l'étape (c), le substrat étant exposé à un rayonnement énergétique, de telle sorte que l'encre d'impression est durcie et la couche de réception d'encre est en même temps post-réticulée, la couche de réception d'encre (5) post-réticulable par effet de rayonnement énergétique étant une couche de réception d'encre à durcissement par radicaux ou une couche de réception d'encre à durcissement cationique.
  6. Procédé selon la revendication 5, caractérisé en ce que la couche de réception d'encre (5) post-réticulable par effet de rayonnement énergétique est une couche de réception d'encre à durcissement par radicaux et peut être obtenue par séchage physique d'une dispersion basée sur acrylates d'uréthane insaturés.
  7. Procédé selon la revendication 5 ou 6, caractérisé en ce que l'élément de sécurité (6, 7) est réalisé en tant que fenêtre, fil de sécurité, ruban de film, caractéristique générée par impression, patch ou étiquette.
  8. Procédé selon une des revendications de 5 à 7, caractérisé en ce qu'une couche transparente (8), de préférence un film en matière plastique, est agencé(e) entre le substrat (1) et la couche de réception d'encre (5).
  9. Billet de banque, pouvant être obtenu par un procédé selon une des revendications de 5 à 8.
  10. Procédé de fabrication d'un billet de banque, comprenant :
    (a) une mise à disposition d'un substrat pour document de valeur et d'un élément de sécurité approprié au stockage comprenant au moins une couche de réception d'encre post-réticulable par effet de rayonnement énergétique qui est agencée sur une partie de la surface ou sur toute la surface au-dessus d'une première surface de l'élément de sécurité et est une couche de réception d'encre à durcissement par radicaux, l'élément de sécurité comportant en option un support d'élément de sécurité appliqué au-dessus de la couche de réception d'encre;
    (b) un collage de l'élément de sécurité avec le substrat pour document de valeur au moyen d'une couche de colle, de telle sorte que le substrat (1) pour document de valeur est collé avec le côté de l'élément de sécurité faisant face à la couche de réception d'encre et au support optionnel d'élément de sécurité, afin de mettre à disposition de cette façon une structure substrat-élément de sécurité et, en option, un prélèvement du support d'élément de sécurité de la structure substrat-élément de sécurité, la couche de réception d'encre servant de couche de séparation ou couche de décollement;
    (c) une application d'une encre d'impression durcissable par effet de rayonnement énergétique sur la couche de réception d'encre; et
    (d) une exposition de la structure substrat-élément de sécurité à un rayonnement énergétique, de telle sorte que l'encre d'impression est durcie et la couche de réception d'encre est en même temps post-réticulée.
  11. Procédé selon la revendication 10, caractérisé en ce que la couche de réception d'encre post-réticulable par effet de rayonnement énergétique peut être obtenue par séchage physique d'une dispersion basée sur acrylates d'uréthane insaturés.
EP11773675.1A 2010-09-29 2011-09-27 Substrat apte au stockage et element de securite pour la fabrication de billets de banque, billet de banque et procede de fabrication associe Active EP2621734B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010046839A DE102010046839A1 (de) 2010-09-29 2010-09-29 Zur Lagerung geeignetes Substrat und Sicherheitselement für die Herstellung von Wertdokumenten, Wertdokument sowie Verfahren zur Herstellung hiervon
PCT/EP2011/004827 WO2012052108A2 (fr) 2010-09-29 2011-09-27 Substrat apte au stockage et élément de sécurité pour la fabrication de documents de valeur, document de valeur et procédé de fabrication associé

Publications (2)

Publication Number Publication Date
EP2621734A2 EP2621734A2 (fr) 2013-08-07
EP2621734B1 true EP2621734B1 (fr) 2015-07-22

Family

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Application Number Title Priority Date Filing Date
EP11773675.1A Active EP2621734B1 (fr) 2010-09-29 2011-09-27 Substrat apte au stockage et element de securite pour la fabrication de billets de banque, billet de banque et procede de fabrication associe

Country Status (4)

Country Link
EP (1) EP2621734B1 (fr)
DE (1) DE102010046839A1 (fr)
ES (1) ES2550773T3 (fr)
WO (1) WO2012052108A2 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4222576A1 (de) 1992-07-09 1994-01-13 Heidelberger Druckmasch Ag Farbe, insbesondere UV-Strahlen härtende Druckfarbe für Offset-Druckprozesse, sowie Einrichtung und Verfahren zum Trocknen der Farbe
DE19502646A1 (de) * 1994-12-15 1996-07-11 Pmd Papierdruck Gmbh & Co Kg Verfahren zum Transferdruck auf aushärtbaren Oberflächen
DE102004035979A1 (de) * 2004-07-14 2006-02-02 Giesecke & Devrient Gmbh Sicherheitselement und Verfahren zu seiner Herstellung
WO2008031170A1 (fr) * 2006-09-15 2008-03-20 Securency International Pty Ltd Dispositifs de sécurité à encre en relief séchable par rayonnement destinés à des documents sécurisés
JP4903618B2 (ja) * 2006-09-25 2012-03-28 富士フイルム株式会社 インクジェット記録方法及びインクジェット記録装置
JP4902437B2 (ja) * 2006-09-27 2012-03-21 富士フイルム株式会社 インクジェット記録方法およびインクジェット記録装置
EP1958782B1 (fr) * 2007-02-16 2014-08-27 FUJIFILM Corporation Procédé d'impression à jet d'encre et appareil
JP4898618B2 (ja) * 2007-09-28 2012-03-21 富士フイルム株式会社 インクジェット記録方法
GB0805493D0 (en) * 2008-03-26 2008-04-30 Sun Chemical Bv A jet ink and ink jet printing process
DE102008061608A1 (de) * 2008-12-11 2010-06-17 Giesecke & Devrient Gmbh Sicherheitselement
DE102009021634B4 (de) * 2009-05-16 2018-08-09 Ruhlamat Gmbh Vorrichtung zum farbigen Bedrucken von Personalisierungsdokumenten
DE102009024987A1 (de) * 2009-06-16 2010-12-23 Giesecke & Devrient Gmbh Folienverbundbanknote

Also Published As

Publication number Publication date
WO2012052108A3 (fr) 2012-06-21
DE102010046839A1 (de) 2012-03-29
WO2012052108A2 (fr) 2012-04-26
EP2621734A2 (fr) 2013-08-07
ES2550773T3 (es) 2015-11-12

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