EP2807036B1 - Sicherheitsdokument sowie verfahren zur herstellung eines sicherheitsdokuments - Google Patents

Sicherheitsdokument sowie verfahren zur herstellung eines sicherheitsdokuments Download PDF

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Publication number
EP2807036B1
EP2807036B1 EP13701240.7A EP13701240A EP2807036B1 EP 2807036 B1 EP2807036 B1 EP 2807036B1 EP 13701240 A EP13701240 A EP 13701240A EP 2807036 B1 EP2807036 B1 EP 2807036B1
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EP
European Patent Office
Prior art keywords
layer
heat
film element
security
carrier substrate
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
EP13701240.7A
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German (de)
English (en)
French (fr)
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EP2807036A1 (de
Inventor
Jürgen SCHEUER
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.)
Leonhard Kurz Stiftung and Co KG
Original Assignee
Leonhard Kurz Stiftung and Co KG
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Filing date
Publication date
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Application filed by Leonhard Kurz Stiftung and Co KG filed Critical Leonhard Kurz Stiftung and Co KG
Priority to PL13701240T priority Critical patent/PL2807036T3/pl
Publication of EP2807036A1 publication Critical patent/EP2807036A1/de
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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
    • B42D25/24—Passports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
    • B41M3/12—Transfer pictures or the like, e.g. decalcomanias
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
    • B41M3/14—Security printing
    • B41M3/142—Security printing using chemical colour-formers or chemical reactions, e.g. leuco-dye/acid, photochromes
    • 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
    • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/267—Marking of plastic artifacts, e.g. with laser
    • 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
    • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/40—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography
    • B41M5/42—Intermediate, backcoat, or covering 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
    • B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • B42D25/25—Public transport tickets
    • 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
    • B42D25/355—Security threads
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/02—Forms or constructions
    • G09F3/0291—Labels or tickets undergoing a change under particular conditions, e.g. heat, radiation, passage of time
    • 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
    • B42D25/26—Entrance cards; Admission tickets
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/02—Forms or constructions
    • G09F2003/0201—Label sheets intended to be introduced in a printer, e.g. laser printer
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/02—Forms or constructions
    • G09F2003/0202—Forms or constructions printed before use
    • G09F2003/0207—Ticket
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/02—Forms or constructions
    • G09F2003/0225—Carrier web
    • G09F2003/0226—Carrier sheet
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/02—Forms or constructions
    • G09F2003/023—Adhesive
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/02—Forms or constructions
    • G09F2003/0255—Forms or constructions laminated

Definitions

  • the invention relates to a security document, a method for producing a security document and a method for producing an individualized security document.
  • Tickets and travel information are increasingly provided by ticket vending machines.
  • the ticket machine In order to increase the counterfeit security of tickets, the ticket machine is often equipped with a security paper, which is provided by the ticket vending machine when issuing the ticket with an individualized imprint, which indicates, for example, the destination and the period of validity.
  • the security against counterfeiting is particularly important for longer valid and higher quality weeks, monthly or annual tickets or for international tickets in cross-border traffic.
  • the invention is now the task of increasing the security against forgery of customizable security documents, in particular tickets and tickets.
  • a security document here is to be understood as meaning both an isolated security document, such as a ticket or a ticket, and a security paper which, for example, can be separated into several isolated security documents by cutting it.
  • thermosensitive coating is between the film element and the Carrier layer arranged so that the thermosensitive layer and the data written in this area are no longer freely accessible and are protected by the film element from manipulation attempts. Since in this area immediate access to the thermosensitive layer is no longer possible and furthermore the thermosensitive layer is also connected via an adhesive layer to the film element, mechanical manipulation attempts lead to destruction of the film element and thus the security features provided on it, so that manipulation attempts easily recognizable. Furthermore, manipulation attempts are also made more difficult by the special properties of the thermosensitive coating, since detachment tests based on a heating of the value document, for example with a hair dryer, lead to a full-surface color change, so that also such counterfeiting attempts are immediately recognizable.
  • the security documents that have not yet been individualized can be produced on a large scale at low cost, and for the individualization of the security documents, only the use of inexpensive printers without additional handling steps is necessary (for example, the additional lamination of a film to an individualized one is no longer necessary Imprint) necessary. This can be achieved with very little technical effort in the vending machines a significant improvement in the security against forgery of security documents, especially tickets and tickets.
  • a cold adhesive layer or a UV-curable adhesive layer is used to apply the film element to the carrier substrate.
  • a cold adhesive layer is understood to mean an adhesive layer in which the adhesive force mediated by the adhesive layer between the film element and the carrier substrate is activated solely by the compression of the film element and carrier substrate, that is, activated without the use of heat.
  • cold adhesive for example, conventional without pressure and radiation curing adhesive or pressure-curing adhesive used.
  • Adhesives containing the following substance groups are preferably used as UV-curable adhesives (amounts in% by weight): 50-80 polyester 2-20 urethane 10-15 bonding agent 3-8 Photoinitiator (s) 3-10 Filler (e) 0-5 Monomeracrylate 0.1-2 organic pigment (s)
  • the curing of the adhesive layer is preferably carried out with UV radiation having a wavelength between about 250 nm and about 400 nm.
  • the adhesive layer is transparent in the visible wavelength range for the human eye, in particular transparent and clear.
  • transmissivity is meant a transmissivity in the wavelength range visible to the human eye of more than 50%, more preferably more than 80%, more preferably 90%.
  • a “clear” adhesive layer is understood to be an adhesive layer in which less than 50%, more preferably less than 80%, of the transmitted light is scattered during the transmission of the light through the adhesive layer.
  • the adhesive layer preferably has a layer thickness between 1 .mu.m and 10 .mu.m, preferably between 1 .mu.m and 5 .mu.m.
  • the adhesive layer is preferably printed onto the carrier substrate for application of the film element, in particular by means of gravure printing, flexographic printing or offset printing.
  • the imprint of the adhesive layer is not carried out over the entire surface, but pattern-shaped. This makes it possible, as described below, to control the shape of the applied on the carrier substrate film element by the pattern-shaped imprint, without the need for expensive embossing or stamping tools must be made for this purpose.
  • the film element is preferably applied to the carrier substrate as part of a transfer layer of a transfer film.
  • a transfer film comprising a carrier film and a transfer layer detachable therefrom is applied to the adhesive layer printed on the carrier substrate, the adhesive layer is activated by the pressure exerted or by UV irradiation and then the carrier film is removed.
  • the area of the transfer layer contacted with the adhesive layer and thus adhering to the carrier substrate is released from the carrier film and remains as a film element on the adhesive layer.
  • the use of a cold adhesive and / or a UV-curable adhesive for the adhesive layer further ensures that the thermosensitive coating is not destroyed or activated by the application of the film element without sufficient to activate the thermosensitive coating heat or activated and remains writable.
  • the shape of the film element can be varied at low cost.
  • the film element may for example be formed over the entire surface, in strip-shaped or patch-shaped form.
  • a further security feature can be provided.
  • the film element can have, for example, a finely structured edge and / or finely structured interruptions or fine detents, so that detachment attempts result in the destruction of these fine structures. Cut-out experiments are made considerably more difficult.
  • the fineness of the structures is limited only by the achievable printing resolution of the adhesive layer pressure and may be below the resolution limit of the eye, in particular, the smallest dimensions of the structures may be about 300 microns or less.
  • the film element thus preferably has a shape in plan view, which is characterized by an edge which is at least partially structured, in particular finely structured, and / or characterized in that the film element has a plurality of interruptions and / or the film element of a Variety of sub-areas, which are arranged separately on the carrier substrate.
  • the structural elements of the edge, the interruptions and / or the partial regions preferably have a lateral dimension of at least one direction of less than 400 ⁇ m, in particular less than 300 ⁇ m, preferably between 300 ⁇ m and 50 ⁇ m, in at least one direction.
  • a finely screened application of the adhesive layer and a correspondingly finely screened film element may be advantageous to achieve that the film element optically acts as a full surface applied element, however, the fine interruptions in the film element better activation of the thermosensitive coating by the thermal print head also at higher printing speeds and / or to reach lower pressure temperatures.
  • the fine screening can also be provided only surface area, so that a surface area of the film element is applied over the entire surface and another part is applied finely rastered.
  • a first information is written into the security document by means of a thermal print head by activating the color change of the thermosensitive coating in regions such that at least part of the first information is covered by the film element, when viewed vertically to the plane defined by the top of the carrier substrate.
  • the first information is preferably an individualized information, for example the validity date, the scope or the destination of the ticket desired by the customer. Characterized in that at least part of the first information is covered by the film element, as described above, a subsequent manipulation of the security document greatly impeded.
  • the thermal print head when writing the first information, is positioned on the side of the carrier substrate facing the film element.
  • the heat generated by the heating elements of the thermal print head thus transmits through the film element and activates in the respective zones a color change of the thermo-sensitive coating to form the first information.
  • the film element preferably has a layer thickness between 3 .mu.m and 25 .mu.m, more preferably between 5 .mu.m and 15 .mu.m.
  • the layers of the Film element, which are in the writing of the first information between heating elements of the thermal print head and he thermosensitive coating, and the adhesive layer have a certain heat-insulating effect with respect to the heat from the heating elements of the thermal print head, but due to the very small thickness of these layers is negligible for the sufficient activation of the thermosensitive coating, as long as a not too high labeling speed and a not too low temperature for the heating elements is selected.
  • the skilled person can, starting from the known values for uncoated thermal paper on a conventional thermal printer set a slightly higher temperature level for the thermal print head and / or a slightly lower transport speed of the paper to achieve sufficiently good printing results.
  • At least one of the optical security features of the decorative layer of the film element has a security feature which can be recognized in incident light and which is arranged in a transparent region of the film element.
  • a transparent region of the film element preferably has an (average) transmissivity in the wavelength range visible to the human eye in at least one spatial direction of more than 50%, more preferably of more than 70%.
  • the transparent region of the film element is formed such that optical information arranged below the film element in at least one spatial direction is visible to the human viewer.
  • this information overlaps with those visible in incident light Features of the security feature, so that the human viewer perceives a combination of this information in this area.
  • a transparent region of the film element preferably covers the thermosensitive coating at least in regions, when viewed perpendicularly to the plane spanned by the upper side of the carrier substrate. Furthermore, the visually recognizable first information is preferably written into the security document by activating the color change of the thermosensitive coating in regions such that at least part of the first information is covered by a transparent region of the film element when viewed perpendicular to the plane defined by the upper side of the carrier substrate ,
  • At least one of the optical security features of the film element is further arranged such that it at least partially covers the thermosensitive coating and in particular also the first information when viewed perpendicular to the plane defined by the upper side of the carrier substrate.
  • This measure makes it possible to further increase the security against forgery of the security document.
  • the decorative layer preferably has one or more layers providing the security feature.
  • This layer or these layers preferably comprise one or more of the following elements: UV or IR printing, microprint, layer containing optically variable pigments, layer containing a refractive element or diffractive element, an isotropic or anisotropic matt structure, a relief hologram A volume hologram, a zero-order diffraction structure, a color shift effect-generating thin film layer element, and / or a crosslinked liquid crystal layer.
  • a UV print is invisible in visible light and visible only in ultraviolet light, especially in a specific UV wavelength range.
  • An IR print is invisible in visible light and visible only in the infrared, especially in a specific IR wavelength range, light.
  • thin-film layer pigments or liquid-crystal pigments are preferably used as optically variable pigments.
  • a refractive element is formed, for example, by one or more lenses, a microlens grid, prisms or blaze grids.
  • a diffractive element is preferably formed by a relief structure with a spatial frequency between 100 lines / mm to 5000 lines / mm. This relief structure is preferably coated with a dielectric HRI or LRI (High Refraction Index) layer in order to improve the visibility of the relief structure.
  • An anisotropic matt structure is formed by a matt structure which has a scattering effect which is different depending on the viewing angle.
  • a zero-order diffraction structure is preferably obtained from a relief structure with a spacing of the structural elements of formed less than a wavelength ⁇ in the visible light range.
  • This relief structure is preferably coated with a dielectric HRI or LRI (High Refraction Index) layer in order to take advantage of the waveguide effect that forms as a result.
  • the viewing angle-dependent color shift effect-generating thin-film layer elements have one or more spacer layers whose refractive index differs from the refractive index of the subsequent layers or media, and where the thickness of the spacer layer has an optical thickness of ⁇ / 2 or ⁇ / 4 for ⁇ in the wavelength range of FIG human eye has visible light.
  • a crosslinked liquid crystal layer is preferably a nematic or cholesteric liquid crystal layer which encodes information recognizable by means of a polarizer or exhibits a viewing angle-dependent color shift effect.
  • the film element has a transparent replication layer and a transparent reflection-enhancing layer.
  • a relief structure which provides an optical security feature is preferably molded into the interface between the replication layer and the reflection-enhancing layer.
  • This relief structure can be, for example, the relief structure of a 2D / 3D hologram, a diffractive security element, such as a Kinegram®, or else a refractive structure, for example a microlens grid.
  • the transparent reflection-enhancing layer used is preferably a (dielectric) layer whose refractive index differs from the refractive index of the replication layer by at least 0.2.
  • an HRI or LRI layer for example a ZnS layer, is used as the transparent reflection-enhancing layer.
  • the transparent reflection-enhancing layer is preferably formed by a metal layer.
  • the layer thickness of the metal layer or its shape is chosen so that the average transmissivity of this layer in the wavelength range visible to the human eye is more than 60%, preferably more than 80%.
  • the layer thickness of the metal layer is chosen to be correspondingly thin in order to meet these transmissivity conditions.
  • the metallic layer is formed of a sequence of a plurality of first zones in which the metal of the metal layer is provided and second zones in which the metal of the metal layer is not provided, wherein the dimension of the first and second zone is less than 300 microns, preferably less than 50 microns.
  • Such a metal layer can be produced by vapor deposition methods, for example tin vapor deposition, or by corresponding demetallization of a metal layer applied over the entire surface.
  • the film element comprises not only transparent areas but also opaque areas and, in particular, in these opaque areas, one or more security features recognizable in incident light are provided.
  • the arrangement of opaque and transparent areas and the shaping of these areas provide an additional security feature which is easily recognizable to the viewer and further increases the security against counterfeiting.
  • the film element is formed over the entire surface transparent.
  • the carrier substrate comprises a thermal paper or consists of a thermal paper.
  • the carrier layer is coated with the thermosensitive coating and the thermosensitive coating extends at least partially into the volume of the carrier layer.
  • the security against counterfeiting of the security document is further increased, since the first information thus also extends into the carrier layer during the writing and thus further manipulation is made more difficult.
  • the carrier layer is a paper, in particular a thickness between 20 ⁇ m and 500 ⁇ m, in particular between 50 ⁇ m and 200 ⁇ m, or the carrier layer has one or more paper and / or plastic layers.
  • the carrier substrate has one or more layers providing second optical information. These layers are preferably formed by a security imprint, a color coat, a layer containing optically variable pigments, UV or IR-active pigments or dyes.
  • These layers are preferably applied by gravure, offset printing or intaglio printing.
  • thermosensitive coating is preferably applied with an application weight between 1 and 60 g / m 2 after drying.
  • the thermosensitive coating preferably has a dye, which undergoes a color reaction upon the action of heat.
  • This color reaction leads, in particular, to a color change recognizable to the human observer, for example from colorless to a color such as black or red or from a first color, for example white, to a second color, for example red.
  • the dyes are preferably colorless in the unexcited state.
  • the coating preferably comprises co-reactants which react when the heat is applied in a melt with the dye in a color reaction.
  • thermosensitive coating is preferably transparent before the action of heat and in particular colorless. After exposure to heat, a color change preferably takes place in a covering body color, in particular in a dark body color such as black.
  • the degree of coverage of the activated regions of the thermosensitive coating is preferably more than 50%, preferably more than 70%.
  • the activation temperature at which the thermosensitive coating is caused to change color is preferably above 50 ° C., in particular above 60 ° C.
  • the production of the security document is preferably carried out in a roll-to-roll process. Furthermore, the step of applying the film element to the carrier substrate is preferably carried out several times laterally spaced apart from each other, thus obtaining as security document a security paper which is divided into a plurality of individual security documents can be isolated. This security paper is singled out into individual security documents, in particular after the first information has been registered, for example in the vending machine.
  • the security document is preferably used as a security paper, as a ticket, as a ticket, as a concert ticket, as a boarding pass, as a label or label for securing merchandise, as a software certificate, etc.
  • Fig. 1 and Fig. 2 illustrate the basic sequence of a method for producing a security document, in particular a ticket or a ticket.
  • Fig. 1 illustrates the production of security documents in an advantageous large-scale roll-to-roll process
  • Fig. 2 the individualization of the thus produced Security documents at the point of sale, for example in a ticket machine.
  • Fig. 1 shows a plurality of film rolls 81, 82, 83 and 84, a plurality of printing units 63, 61 and 62.
  • the printing units 61 to 63 are preferably gravure or offset printing devices.
  • thermosensitive coating which is veranladbar by the action of heat, in particular by means of a thermal print head, to a color change.
  • the thermosensitive coating can be applied to the carrier layer 10 from the printing unit 63 over the whole area or even in pattern form.
  • the multi-layer body 1 'thus formed comprising the carrier layer 10 and the applied thermosensitive coating is then fed to a printing device 60, which may comprise one or more printing units 61.
  • the printing unit 63 can also be arranged in a separate machine, so that between the printing units 63 and the printing device 60, a winding and re-unwinding of the multi-layer body 1 'takes place.
  • the printing units 61 one or more further layers are now printed on the top and / or bottom of the multi-layer body 1 '.
  • These layers may, for example, be optical information-indicating layers, protective layers and / or adhesion-promoting layers.
  • the carrier substrate 1 thus formed is now fed to the printing unit 62.
  • the printing unit 62 prints an adhesive layer on the side of the carrier substrate 1, on which the thermosensitive coating is applied to the carrier layer 10.
  • the adhesive layer can be printed on the carrier substrate 1 over the entire surface or in a pattern, as will also be explained in detail below.
  • the printed adhesive layer preferably consists of a cold adhesive or a UV-curable adhesive.
  • the film web thus formed is then fed to the applicator 70.
  • a film web forming a transfer film 20 is wound up.
  • the application device 70 preferably has an applicator roller 71 and a counterpressure roller 72, which press the carrier substrate with the adhesive layer comprising the film web and the transfer film 20 against each other.
  • the adhesive layer is activated and the region of the transfer layer of the transfer film 20 contacted with the adhesive layer is connected to the carrier substrate 1 via the adhesive layer.
  • the transfer film 20 is removed from the carrier substrate 1 by passing the webs apart, with the region of the transfer layer contacted with the adhesive layer detaching from the transfer film 20 and remaining as a film element on the adhesive layer.
  • the remainder of the transfer film 20 is wound on the film rolls 83.
  • the film web thus formed is then fed to the separating device 73 which separates the film web into individual, in particular strip-shaped, regions of a predetermined length cuts.
  • the thus formed security document 30, which here consists of a security paper which can be singulated into a plurality of individual security documents, is then wound on the film roll 84.
  • thermosensitive coating substrate As the starting material, the use of thermal paper as a substrate provided with a thermosensitive coating, for example the paper Mitsubishi Thermoscript TF 12 or Mitsubishi Thermoscript TF 7067, has proved to be useful.
  • the printing device 60 it is also possible to dispense with the printing device 60 and, for example, directly supply the thermal paper wound on a film roll to the printing group 62. Furthermore, it is also possible that, for example, the thermal paper is printed in a separate production device by means of the printing device 60 and the film roll thus produced is then transported to the printing unit 62 and fed to the printing unit 62 as a starting substrate.
  • the printing with the adhesive can also be done by means of a sheet-fed press.
  • the application of the transfer film can also be done by means of appropriate plunger.
  • the transfer film 20 has a carrier film 21 and a transfer layer 27 which can be separated or detached from it.
  • a release layer 22 is applied, which preferably consists of a layer containing wax components, which facilitates the detachment of the transfer layer 27 of the carrier film 21.
  • the transfer layer 27 preferably has a sequence of a protective lacquer layer 23, one or more decorative layers 24, 25 and an adhesion-promoting layer 26.
  • the protective lacquer layer 23 preferably has a layer thickness of approximately 1 ⁇ m.
  • the adhesion-promoting layer 26 preferably has a layer thickness of less than 1 ⁇ m.
  • the protective lacquer layer 23 and the adhesion-promoting layer 26 as well as also the release layer 22 could also be dispensed with.
  • the decorative layer has at least one optical security feature.
  • the decorative layer may in this case likewise consist of one or more layers, which are required in order to generate the corresponding security features.
  • the decorative layer may have a layer containing a security print, a UV or IR print, a microprint or an imprint or a layer containing optically variable pigments.
  • a security print e.g., a security print
  • a UV or IR print e.g., a UV or IR print
  • a microprint or an imprint e.g., a layer containing optically variable pigments.
  • Such layers are generated, for example, by printing corresponding printing materials by means of suitable printing processes, it also being possible to use printing processes such as intaglio printing, intaglio printing or pad printing.
  • Security layers are thus provided by such layers, which are characterized by a security print, a microfilm recognizable by means of a microscope, a UV or IR print detectable by UV or IR illumination, or a color shift effect generated by the optically variable pigments.
  • the decorative layer comprises layers which provide a refractive element, a diffractive element, an anisotropic matt structure, a relief hologram or a zero-order diffraction structure which provide one or more optically detectable, in particular optically variable security features.
  • the decorative layer preferably comprises a replication layer and a reflection-enhancing layer, wherein one or more relief structures are molded into a surface of the replication layer, in particular into the interface between replication layer and reflection-enhancing layer.
  • the embodiment according to Fig. 3 and Fig. 5 illustrates a transfer layer 27 with such a decorative layer, which has a replication layer 24 and a preferably adjacent to this reflection-enhancing layer 25.
  • the replication layer 24 preferably consists of a thermoplastic or UV-curable replication lacquer layer of a layer thickness between 1 and 3 ⁇ m.
  • the relief structure is molded by means of a corresponding replication tool using heat and pressure, using a thermoplastic replication layer, or by subsequent or simultaneous UV irradiation with a UV-curable replication layer.
  • the relief structures may be the relief structure of a 2D / 3D hologram, which is holographically generated and copied onto the replication master.
  • the relief structures can also be computer-generated holograms and diffractive elements, for example a Kinegram®.
  • Such relief structures preferably have a spatial frequency between 100 lines / mm and 5000 lines / mm and optionally have a plurality of different areas, which are covered with relief structures that differ in their Spatialfrequenz, their azimuth angle and / or relief shape and so generate a desired optically variable appearance.
  • the relief structures may also be relief structures which form matt structures, in particular anisotropic matt structures.
  • Anisotropic matt structures are here understood to mean matt structures whose scattering characteristic is dependent on the viewing angle and thus an optically variable appearance shows. These matt structures are preferably generated holographically, but can also be formed by a corresponding computer-generated arrangements of diffractive elements. Furthermore, it is possible for the relief structures to form refractive elements, for example to form lenses, microlens screens or microprisms. Furthermore, it is also possible for the relief structures to form a zero-order diffraction structure. These diffraction structures are formed by gratings, in particular regular gratings, for example cross gratings or linear gratings, in which the spacing of the individual structural elements from each other is less than a wavelength ⁇ in the visible light range. By such relief structures, a striking optically variable security feature is provided in which the viewer shows a color change when turning.
  • the reflection-enhancing layer 25 may be formed over the entire surface or partially. Furthermore, it is also possible for the reflection-intensifying layer 25 to be formed in regions as an opaque reflection-enhancing layer and as a transparent reflection-enhancing layer in some regions.
  • the transparent reflection-enhancing layer it is preferable to use a (transparent) layer whose refractive index differs from the refractive index of the replication layer 24 by at least 0.2.
  • an HRI or LRI layer for example ZnS, is used as the transparent reflection-enhancing layer.
  • a metal layer which is selected to be correspondingly thin, that the layer still has at least some residual transmissivity for the human eye, or which is correspondingly finely structured, so that this layer still provides sufficient light is transmitted and in particular arranged below this layer information is still visible to the human observer.
  • Opaque reflection-enhancing layers are preferably formed by a metal layer or by a transparent reflection-enhancing layer provided with a corresponding opaque lacquer layer.
  • the metals used for the reflection-enhancing layer 25 are preferably aluminum, silver, gold and copper. In this case, it is also possible for different regions of the reflection-enhancing layer 25 to be formed from different metals, which due to their inherent color also cause a corresponding different visual appearance of the corresponding optical security features.
  • a volume hologram layer in which a volume hologram is inscribed, to be used as the decorative layer.
  • the decorative layer may have one or more thin film layer elements which generate a viewing angle-dependent color shift effect.
  • a thin-film layer element has one or more spacer layers adjoining a medium with different refractive index, the optical thickness of which is in the range of ⁇ / 2 or ⁇ / 4 for a wavelength ⁇ in the range of visible light.
  • Such a thin-film layer element may thus consist, for example, of a sequence of an absorption layer, for example a thin metal layer, a dielectric spacer layer and a reflection-enhancing layer, or else an even or odd sequence consist of high and low refractive layers, which act as spacer layers.
  • the decorative layer has a crosslinked liquid-crystal layer.
  • Such liquid crystal layers on the one hand show recognizable security features by means of a polarizer.
  • a cholesteric liquid crystal material By using a cholesteric liquid crystal material, it is further possible to provide such a liquid crystal layer with a security feature exhibiting a viewing angle-dependent color shifting effect.
  • Fig. 3 shows a plan view of a section of the transfer layer 27 of the transfer sheet 20. As in Fig. 3 indicated this section is intended to provide two film elements 2 for the application to security documents.
  • the respective film element 2 providing sections are constructed identically.
  • the film elements 2 thus each have a region 41 in which the film element is formed transparent, and a region 42 in which the film element 2 is not formed transparent.
  • One or more security features 51 are provided in the transparent area 41 and one or more security features 52 are provided in the non-transparent area 42.
  • the security features 51 and 52 are provided by the corresponding configuration of the decorative layer as described above.
  • the security features 51 thus represent security features which can be recognized in incident light and which are arranged in a transparent region of the film element 2, and the security features 52 represent security features which can be seen in incident light and which are arranged in an opaque region of the film element 2.
  • an optically recognizable security feature can further be implemented in the film element 2.
  • the security features 51 and 52 may each be formed by diffractive relief structures and / or matt structures, which are coated in the non-transparent region 42 with an opaque metallic reflection layer, in particular of vapor-deposited aluminum, and coated in the transparent region 41 with a transparent vapor-deposited HRI reflection layer are.
  • Fig. 6a shows a sectional view of the printing unit 62 supplied to the carrier substrate 1.
  • the carrier substrate 1 comprises the carrier layer 10 and the above-mentioned thermosensitive coating 11 and a layer 12 applied by the printing device 60 on.
  • the thermosensitive coating applied to the carrier layer 10 extends at least in regions into the volume of the carrier layer 10.
  • the carrier layer 10 is preferably a paper layer, preferably with a layer thickness between 70 ⁇ m and 250 ⁇ m, for example 125 ⁇ m.
  • the carrier layer further preferably has a weight per unit area of 40 to 300 g / m 2 (oven-dry).
  • the carrier layer it is also possible for the carrier layer to consist of one or more paper and / or plastic layers and in particular of a sequence of paper and plastic layers.
  • the thermosensitive coating 10 may consist of one or more layers.
  • the thermosensitive coating may comprise, for example, a first coating which has thermal energy-insulating properties (insulation layer), a thermoreactive layer applied thereto and a protective layer applied thereto.
  • the insulating layer preferably contains pigments selected from the group consisting of kaolin, calcined kaolin, calcium carbonate, zinc oxide, aluminum oxide, titanium dioxide, silicon dioxide, aluminum hydroxide, barium sulfate, zinc sulfate, talc, clay, colloidal silica, hollow sphere pigments or mixtures thereof.
  • the thermosensitive coating preferably comprises a thermal reactive layer containing, for example, leuco dyes which are colorless in the unexcited state, and co-reactants which react with each other when heat is applied in a melt.
  • leuco dyes a lactone ring is thermally opened and a color reaction occurs.
  • the thermal reactive layer preferably contains a paint base and / or a color developing material. Examples of such colorants are triarylmetane-based colorants, diphenylmethane-based colorants, spiro-based colorants and fluoran-based colorants.
  • the color developing material may be selected from organic or inorganic materials which initiate the color reaction in contact with the color base materials.
  • the color developing material is preferably acidic.
  • inorganic color developing materials are activated clay, attapulgites, colloidal silica, aluminum silicate and the like.
  • organic color developing materials are phenolic compounds, salts of phenolic compounds or aromatic carboxylic acids and the like with polyvalent metals such as zinc, magnesium, aluminum, calcium, titanium, manganese, tin, nickel and the like and / or pyridine complexes of zinc thiocyanates.
  • thermosensitive coating or the individual layers which make up the thermosensitive coating preferably each have an application weight of from 1 to 20 g / mm (oven-dried) after drying.
  • the layer 12 preferably forms a layer providing an optical information.
  • This layer consists in particular of a security printing, a colored lacquer layer, a layer containing optically variable pigments, UV or IR-active pigments or dyes.
  • This layer thus preferably provides a basic information which is uniform for all value documents, for example all tickets.
  • the adhesive layer 3 is preferably applied in a pattern in a shape which is to correspond to the shape of the film element 2 on the carrier substrate.
  • the transfer film 20 is then brought together with the carrier substrate 1, so that the adhesive layer 3 between the transfer film 20 and the carrier substrate 1 is arranged.
  • the transfer film 20 adheres to the carrier substrate 1 in these areas, so that after removal of the transfer film 20 from the carrier substrate 1 the area of the transfer layer 27 contacted by the adhesive layer 3 is detached from the transfer film 20 and as the film element 2 remains on the carrier substrate 1.
  • the resulting security document 30 is exemplified in plan view in FIG Fig. 4a shown.
  • Fig. 4a shows the security document 30 with the carrier substrate 1 and the film element 2.
  • the layer 12 of the carrier substrate 1 represents a plurality of optical Information 53 ready, which in Fig. 4a exemplified by dashed lines.
  • the film element 2 shows in the embodiment Fig. 4a
  • the film element 2 has any other shape, for example, the security document 30 is covered over the entire surface or, for example, shaped in the form of a patch.
  • the shape of the film element 2 is, as already described above, determined by the shape of the adhesive layer 3, so that the film element 2 may have any arbitrary shape. So it is for example advantageous that the edges in a strip-shaped design of the film element 2 is not straight as in Fig. 4a are indicated, but for example jagged or in the form of a pattern and thus form an additional security feature.
  • the film element 2 has one or more transparent regions 41, in which the underlying regions of the carrier substrate 1 can be seen by the human observer under at least one spatial direction.
  • the information 53 applied to the carrier substrate 1 is as shown in FIG Fig. 4a indicated, visible through the film element 2 through.
  • one or more security features 51 are generated by the decorative layer or the decorative layers of the film element 2 in the region 41 of the film element 2, so that one or more of the optical security features of the decorative layer are arranged in one of the transparent regions 41.
  • the security features 51 are preferably security features that only reflect part of the incident light to generate an optical security feature by diffraction / reflection and transmit part of the light, so that the underlying information 53 can be seen through these security features 51 and overlay with these optically.
  • security features are generated, for example, by the layer structure described above with a replication layer and a transparent reflection-enhancing layer.
  • the film element 2 preferably also has one or more opaque areas 42, in which the underlying information of the carrier substrate is not or only with difficulty recognizable to the human observer.
  • the security features 52 are further provided. In the above exemplary embodiment, these are formed, for example, by a replication layer with shaped relief structures and an opaque reflection-enhancing layer.
  • Fig. 2 shows the schematic structure of a device 9 for outputting an individualized security document.
  • the device 9 represents, for example, a ticket vending machine.
  • the device 9 has an input device 94, a control device 93, a printer 91 and an output device 92.
  • the device 9 is a according to Fig. 1 produced film roll 84 supplied.
  • the security document formed as security paper 30 is unwound from the film roll 84 and fed to the printer 91.
  • the printer 91 has at least one thermal print head 911, which is provided by the control device 93 is controlled.
  • the thermal printhead 911 is brought into contact with the top of the security document 30 as shown in FIG Fig. 7a is indicated. Heating elements 912 of the thermal printing head 911 are thus brought into contact with the side of the security paper 30 on which the film element 2 is applied to the carrier substrate 1.
  • Fig. 1 produced film roll 84 supplied.
  • the security document formed as security paper 30 is unwound from the film roll 84 and fed to the printer 91.
  • the printer 91 has at least one thermal print head 911, which is provided by the control device 93 is controlled.
  • the thermal printhead 911 is brought into contact with
  • thermosensitive coating 11 is partially activated and excited to a color change.
  • printer 91 CAB a4 + (cab Mathtechnik GmbH & Co. KG, Düsseldorf), Avery Dennison 64-08 (Avery Dennison, USA), Zebra 110Xi4 (Zebra Technologies Corporation USA).
  • the individualized security document 30 ' is optionally separated from the film web and separated, and then output as an individualized security document 30 ".
  • the security document 30 is exemplary in FIG Fig. 4b shown.
  • the security document 30 "is like the security document 30 after Fig. 4a constructed, except that in addition by area-wise activation of the color change of the thermo-sensitive coating 11 information 54 is inscribed in the security document.
  • the security document 30 thus has the carrier substrate 1 with the information 53 and the film element 2 with the transparent areas 41, the opaque areas 42 and the security features 51 and 52.
  • the information 54 is written into the security document such that at least part of the information 54 is covered by a transparent region 41 of the film element 2. Thus at least part of the information 54 is visible through the film element 2.

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Credit Cards Or The Like (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)
EP13701240.7A 2012-01-23 2013-01-21 Sicherheitsdokument sowie verfahren zur herstellung eines sicherheitsdokuments Active EP2807036B1 (de)

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PL13701240T PL2807036T3 (pl) 2012-01-23 2013-01-21 Dokument bezpieczny jak i sposób wytwarzania dokumentu bezpiecznego

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DE102012001121.0A DE102012001121C5 (de) 2012-01-23 2012-01-23 Sicherheitsdokument, Verfahren zur Herstellung eines Sicherheitsdokuments und Verfahren zur Herstellung eines individualisierten Sicherheitsdokuments
PCT/EP2013/051024 WO2013110565A1 (de) 2012-01-23 2013-01-21 Sicherheitsdokument sowie verfahren zur herstellung eines sicherheitsdokuments

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WO2013110565A1 (de) 2013-08-01
ES2565311T3 (es) 2016-04-01
DE102012001121A1 (de) 2013-07-25
RS54621B1 (en) 2016-08-31
CN104169098B (zh) 2016-08-24
EP2807036A1 (de) 2014-12-03
US20150018206A1 (en) 2015-01-15
US9321294B2 (en) 2016-04-26
DE102012001121B4 (de) 2014-02-20
PL2807036T3 (pl) 2016-06-30
DE102012001121C5 (de) 2018-01-04

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