EP2920001B1 - Jeu de plusieures exemplaires d'un produit de valeur et/ou de sécurité, et procédé de fabrication d'une caractéristique de sécurité - Google Patents

Jeu de plusieures exemplaires d'un produit de valeur et/ou de sécurité, et procédé de fabrication d'une caractéristique de sécurité Download PDF

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Publication number
EP2920001B1
EP2920001B1 EP13791789.4A EP13791789A EP2920001B1 EP 2920001 B1 EP2920001 B1 EP 2920001B1 EP 13791789 A EP13791789 A EP 13791789A EP 2920001 B1 EP2920001 B1 EP 2920001B1
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EP
European Patent Office
Prior art keywords
fibers
particles
security
surface field
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.)
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Application number
EP13791789.4A
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German (de)
English (en)
Other versions
EP2920001A1 (fr
Inventor
Uwe Seidel
Per KRÜGER
Michael Knebel
Stephan WÖLKI
Rainer Seidel
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.)
Bundesdruckerei GmbH
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Bundesdruckerei GmbH
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Publication of EP2920001A1 publication Critical patent/EP2920001A1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • 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
    • B42D25/45—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
    • 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
    • B42D2033/20—
    • B42D2033/30—
    • B42D2033/32—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
    • B42D25/378—Special inks
    • B42D25/387—Special inks absorbing or reflecting ultraviolet light

Definitions

  • a security and / or security document may, for example, be a personal document, in particular an identity card, or a means of payment, in particular a banknote.
  • Such documents are typically produced in standardized formats, for example in the ID 1, ID 2 or ID 3 format according to ISO 7810.
  • the documents can basically consist of or contain an organic polymer or a ceramic material, paper, cardboard or metal. Cards and card-shaped components of book-type documents may preferably be made of laminated polymer films. To verify authenticity, these products have security features.
  • security features used in the value and / or security products can only serve to prove the authenticity of the products regardless of their nature or by their user.
  • security features are, for example, guilloches, watermarks, embossing prints, tipping pictures, holograms, the special paper of banknotes and the like.
  • Customizing, for example, personalizing security features also contain in coded form or in plain text information about the type of document, about the user and / or about an object to which the document is uniquely assigned. Such information may be a face image (a photograph) of the user, his personal information such as name, birthday, place of birth, signature or a personal identifier such as a membership number.
  • Another security feature that individualizes the document can be, for example, a serial number of the document or the chassis number of a motor vehicle to which the document is assigned.
  • fluorescent mottled fibers which consist at least partially of an adhesive to apply to a film or a document. These fibers also have a first and a second luminescent substance (biluminescence).
  • the adhesive ensures that the mottled fibers can be more easily integrated into plastic-based documents.
  • an adhesive strength is produced by the adhesive, so that the fibers are not fixed to a document during a subsequent lamination, but already when scattered onto the surface of the film.
  • the glue also creates a permanent bond between the mottled fibers and the document so they can not be removed from the document.
  • a device suitable for this purpose with a grit holder specified whose inner surface is at least partially uneven and which has at least one slot-shaped scattering opening.
  • an object underlying the present invention is to find a security feature that encodes at least one property of the value and / or security product and / or a property of a person assigned to the product or of an item associated with the product.
  • the present invention has the essential further object of providing a cost-effective, simple and quickly realizable security feature. The security feature is thus intended to increase the security level compared to conventional security and / or security documents or security elements.
  • value and / or security product which may be in particular a security and / or security document or a security element is used, including, for example, a passport, identity card, driver's license, an access control card or other ID card, a vehicle registration document, vehicle registration document, visa, check, means of payment, in particular a banknote, check, bank, credit or cash card, customer card, health card, chip card, company identity card, proof of eligibility, membership card, gift - or shopping voucher, bill of lading or other proof of entitlement, tax stamp, postage stamp, ticket, token, token, adhesive label (for example for product protection) or any other document.
  • a product according to the invention can also be a security element which has the security feature according to the invention and which can be permanently connected to the document, for example a sticker, label or the like in order to provide the document with the security feature.
  • the product may be, for example, a smart card.
  • the security and / or value document may be in ID 1, ID 2, ID 3, or any other normalized or non-normalized format, such as a booklet form, such as a passport-like item.
  • a value and / or security product is generally a laminate of a plurality of document layers, which have been connected in register under the influence of heat and under increased pressure. These products should meet the standardized requirements, for example ISO 10373, ISO / IEC 7810, ISO 14443.
  • the product layers consist, for example, of a carrier material which is suitable for lamination.
  • the term 'security feature' is used in the description and claims of the present application, it is to be understood as a feature which produces an optical impression, which can be detected by means of optical recognition methods, including with the human eye, which is indicated by a (on or multi) colored, in particular luminescent, or black / gray / white pattern of particles of spreading material, in particular of fibers, very particularly preferably of mottled fibers, arranged in a relative arrangement to one another.
  • the optical impression can either be directly perceived and evaluated by a viewer or detected by means of a device receiving electromagnetic radiation with spatial resolution and, in the latter case, perceived by a viewer or evaluated by means of a further device provided for this purpose.
  • They may be particles of any shape, such as platelet, stick, spherical or irregularly shaped particles (granules), fibers and other elongated bodies characterized by a large ratio of their length to their diameter, and the like ,
  • the particles typically have a size (a diameter of the granules or fibers) of 10 to 500 ⁇ m, preferably 30 to 150 ⁇ m, and most preferably 40 to 100 ⁇ m.
  • a filament with, for example, 25 dtex (ISO 1144), which is cut into filament pieces (fibers) can be used to produce fibers.
  • the particles of the material to be spread can be in several types, which differ from each other, for example, by a color perceptible to the human eye, its shape, diameter, thickness, fiber length and the like.
  • the color is based on the color impression, which is caused by the hue and / or brightness of the color when illuminating the material to be scattered with electromagnetic radiation.
  • the surface field has a predetermined field area size, shape, orientation and orientation on the substrate surface.
  • n of the particles in the surface field (s) values are assigned to this field (s) (field values).
  • the spreading material is formed by particles of several types, the particles may differ from one another by their color, size, such as their diameter and / or length and / or thickness, their shape or the like. Particles of one type then have the same color and / or size and / or shape or the like, and a type may already exist if there is coincidence between the particles in only one of these parameters, but not other parameters. For example, red particles may belong to a type, regardless of their shape and size.
  • the grit can be formed by particles of two types or of three types or of four types or of even more types. If particles of several types differ in perceptible color by the human eye, this can be done either by illumination be produced with light in the visible spectral range and / or by excitation of the particles for luminescence, wherein the excitation by means of electromagnetic radiation in the UV, visible or IR spectral region can take place.
  • At least one of the security features is located on at least one exterior of the security and / or security product, i. on the outside of a document or security element, or it is located in at least one interior level in the security and / or security product.
  • the security feature is visually or at least mechanically detectable by means of optical methods from the outside.
  • the particles may be fibers, most preferably mica fibers.
  • the following statements in the description of the invention are representative of the term "particles of a material to be spread" in each case referring to fibers, although this is not intended to be limiting, but also includes generalizing other types of spreading material.
  • the security feature is therefore formed according to the invention by fibers of one or more types which are applied in an exactly predetermined number n in at least one surface field on the at least one substrate surface, fibers of one type can be arranged in a surface field or in multiple surface fields and fibers of several types likewise in each case one surface field or in each case several surface fields.
  • the respective surface field is assigned a value which corresponds to the number n of fibers in this surface field (field value).
  • This field value can be used for coding information, in particular for coding one or more specific properties of the product itself and / or a person and / or an object to which the product is assigned.
  • the field value may always be the same.
  • Value and / or security products with different attributes of such a property for example different issuing sites of identification documents, can then have a different number of fibers arranged in the respective surface field, wherein in the given example each of the issuing sites is assigned a specific field value.
  • the field value may encode any property of the product, person and / or object, such as the issuer of the product, the issuing country, the type of product, the year of issue, or the like.
  • the product may additionally contain the attribute of the property in plain text or with another method in coded form.
  • the fibers according to the present invention are contained within the at least one surface field in the predetermined number. This excludes a varying number of fibers in the surface field from product to product instance.
  • the application and fixation of the fibers in the surface field on the at least one substrate surface does not preclude the addition of fibers outside the surface field on the substrate surface whose type is identical to or different from that of the fibers arranged within the surface field.
  • similar fibers fibers of the same type
  • the fibers located outside the surface field may be stochastically distributed in a conventional manner (in terms of their position and orientation). Since the fibers within the surface field in this case do not differ from those outside the field, the surface field for a viewer is not readily apparent if he does not know its location on the at least one substrate surface. This is particularly the case if the fibers are not present within the surface field in a predetermined arrangement to each other, but are also stochastically arranged within the surface field in terms of their position and orientation, and especially if the fiber density inside and outside the surface field at least approximately is the same size.
  • the at least one surface field is preferably a self-contained surface on one of the substrate surfaces.
  • the at least one surface patch may be square or rectangular in shape, circular, or have a more complex shape, such as a star, crest, or the like.
  • the surface field can occupy the entire substrate surface, ie be identical to it. However, it preferably occupies only a part of the entire substrate surface.
  • the position and the orientation of the surface field on the substrate surface are arbitrary.
  • the surface field can in the middle or at one of the edges and there in the middle or not in the middle or in one of the corners and in these cases be placed on at least one edge of the substrate surface.
  • the surface field may, for example, be formed by one or more strips running between two opposite edges of the substrate surface, wherein a plurality of strips may run parallel to one another or not parallel to one another.
  • a plurality of surface fields may be located on a substrate surface or in each case on a plurality of substrate surfaces of the same value and / or security product, for example two, three, four, five or even more surface fields. Or it can each be a surface field on multiple substrate surfaces of the product. Each of these surface fields may have the same field value, or the surface fields may have different field values. If there are multiple surface fields, each may code, for example, for a property of the product, the person and / or the object other than the other surface fields, for example a second surface field in a motor vehicle letter a first surface field for the year of manufacture of the motor vehicle to which this letter is assigned for the motor vehicle manufacturer and a third surface field for the motor vehicle model.
  • the field values of these fields can also be combined with each other, for example, the approval date can be divided into three subdata, for example in day, month and year, by the field value in each case one of three surface fields coded.
  • code for other product, person and / or item properties and their attributes can also be combined with each other, for example, the approval date can be divided into three subdata, for example in day, month and year, by the field value in each case one of three surface fields coded.
  • fibers are arranged on the at least one substrate surface in the respective surface field, which belong to at least two different fiber types, for example two, three, four, five or even more fiber types, of which in each case a predetermined number of fiber types in which at least one surface field is located.
  • a surface field may have two or more field values which correspond to the respective fiber number n i .
  • the fiber type itself contains additional information that can serve to code a property of the product, the person, and / or the object.
  • the fibers in the at least one surface field can furthermore be arranged in a predetermined arrangement (position, position) and / or orientation / orientation.
  • a predetermined arrangement position, position
  • orientation / orientation orientation
  • one, two, three, four, five or six fibers may be arranged in a surface patch in a respective pattern in which the eyes located on a conventional six-sided dice are located.
  • each fiber arrangement in a surface field constitutes further information which can also code a property of the product, the person and / or the object.
  • the fibers may be randomly positioned in the surface field, but with a given orientation, or with a random orientation, but with a given positioning in the surface field, or both in the positioning in the surface field and in orientation not stochastically but arranged in a predetermined pattern.
  • Fibrous particles of the material to be spread can be designed differently in terms of their shape and geometry and thus form different types.
  • the following parameters can determine the type: the length, the diameter and / or the cross-sectional shape.
  • a typical fiber length is in a range of 2 to 25 mm, preferably about 6 mm.
  • the diameter is for example in a range of 20 to 150 microns, preferably 50 to 60 microns.
  • the cross-sectional shape is preferably circular or oval, but may also be formed, for example, star-shaped or otherwise. Examples of this are in DE 103 24 630 A1 whose disclosure content, at least with regard to these cross-sectional shapes and the production of such grit particles, is incorporated by reference into the present application.
  • the surface area provided with the fibers is preferably formed in a single plane on or in the value and / or security product. But it is also possible that the surface fields are divided into several levels on or in the product. For example, a first part of a surface field, for example a first half, may be located in a first product plane and a second part in a second plane spaced from the first plane. A first portion of the predetermined number of fibers may be in the first portion of the surface panel in the first plane, and a second portion of the fibers may be located in the second portion of the surface panel in the second level.
  • all fibers of the first type may be in the first part of the surface field in the first product plane and all fibers of the second type in the second part in the second plane.
  • the division of the surface field can be recognized at least with the aid of optical magnification means and can also be used as a security feature.
  • a plurality of surface fields can also be arranged in each case on one of several product levels on / in the value and / or security product.
  • the above design options of arranged in one or more surface fields fibers can also be used only to verify the authenticity of the value and / or security product.
  • a determination of the number and optionally the geometric arrangement of the fibers in a surface field and / or a determination of their respective Type be performed with the naked eye directly or by means of a device suitable for this purpose.
  • the color of the fibers can be generated by illumination with electromagnetic radiation in the visible spectral range and / or by their excitation to luminescence, so that they appear to the human eye (one or more) colored or white or gray or black.
  • the color of the fibers is caused in this case by spectrally uneven absorption of the irradiated electromagnetic radiation in the visible spectral range, so that only individual color components are remitted.
  • fibers of different types can therefore absorb and remit different color components of the visible spectral range.
  • the fibers of one type are each uniformly colored in themselves, ie they reflect light with substantially the same electromagnetic spectrum at all their surface locations. However, they can also produce different color impressions on different surface areas.
  • the fibers may be formed of multiple strands of differently colored materials.
  • At least one dye and / or at least one pigment are added to the fiber material, and / or the fibers are coated with at least one dye and / or at least one pigment.
  • dyes and pigments it is possible to use all commercially available materials which are compatible with the fiber material and which survive the processing conditions for the production of the fibers and their introduction into and / or application to the fibers. Such dyes and pigments are also common for the production of printing inks.
  • the fibers can be transparent, translucent or opaque.
  • electromagnetic radiation not in the visible spectral range, but for example ultraviolet (UV) radiation, in particular UV-A radiation (380 to 315 nm) and / or UV-B radiation (315 to 280 nm), very particularly preferably UV-A radiation, for example with 365 nm, and / or optionally also UV-C radiation (280 to 200 nm), for example up to 200 nm, in particular 254 nm.
  • UV radiation in particular UV-A radiation (380 to 315 nm) and / or UV-B radiation (315 to 280 nm), very particularly preferably UV-A radiation, for example with 365 nm, and / or optionally also UV-C radiation (280 to 200 nm), for example up to 200 nm, in particular 254 nm.
  • the luminescence may in particular be photoluminescence in the form of fluorescence or phosphorescence with both Stokes and anti-Stokes shift.
  • the excitation radiation can also be in another spectral range, for example in the visible or infrared (IR) range.
  • fibers of different types absorb the excitation radiation and luminesce spectrally differently in the visible spectral range, so that different types of fibers produce different color impressions.
  • the fibers of one type luminesce uniformly, ie they emit light at all locations with substantially the same electromagnetic spectrum.
  • fibers which are formed from different parts so that different luminescence emanates from the different parts and therefore these different parts produce different color impressions.
  • the fibers may consist of multiple strands with different ones Luminescent substances may be formed (see, for example DE 10 2009 040 747 A1 , mono- or bi-luminescent fibers).
  • the fibers of each type are formed only from one material each, which causes a uniform color impression.
  • fibers of the first type are excitable with UV-A radiation, but not with UV-B radiation
  • fibers of the second type are excitable with UV-B radiation, but not with UV-A radiation.
  • the one area with the fibers of the first type is visible under UV-A excitation, the other area under excitation with UV-B radiation.
  • both types of fibers are simultaneously detectable, such that a color-gradient structure can be visualized from the fibers of the first type to the fibers of the second type.
  • fibers of the first type are excitable with UV-A and UV-B radiation and fibers of the second type are excitable with UV-B radiation, but not with UV-A radiation.
  • the color gradient is directly visible under UV-B excitation, but under UV-A excitation only the fibers of the first type are visible.
  • At least one luminescent substance is added to the fiber material, and / or the fibers are coated with at least one luminescent substance.
  • luminescent substances it is possible to use all commercially available materials which are compatible with the fiber material and which survive the processing conditions for producing the fibers and their introduction into and / or application to the fibers, namely both organic and inorganic luminescent substances, for example rhodamine 6G, fluorescein and rare earth (luminophore) doped materials which form a host lattice for the luminophores, in particular substances doped with terbium, gadolinium, dysprosium, holmium, erbium, thulium, cerium and / or europium, for example oxides, oxinates, sulphides, oxysulphides, Oxynitrides, phosphates or vanadates, can be used.
  • the pigments preferably have a particle size of less than 10 microns,
  • the fibers can either luminesce exclusively and be colorless or nearly colorless to the human eye when illuminated in the visible spectral range, or appear colored to the human eye only when illuminated in the visible spectral range, but have no luminescence when illuminated by electromagnetic radiation outside the visible spectral range, or They can appear colored as well as additionally luminesce for the human eye when illuminated in the visible spectral range.
  • the fibers may be at least partially formed by an adhesive, for example, the fibers at least partially on the outside of an adhesive.
  • the adhesive should be at least partially exposed on the outside of the fibers, so that the fibers are fixed there when hitting the at least one substrate.
  • the glue can form a fiber part.
  • the fibers may be formed of a plurality of coaxial strands, at least one of which is formed by the adhesive.
  • the adhesive may therefore be adjacent to strands of another material on the outside of the fibers.
  • the glue can completely surround a fiber core, something like a coat.
  • the adhesive material may contain at least one of the substances responsible for the color of the fibers when illuminated in the visible spectral range and / or for the luminescence of the fiber.
  • the fibers can be fixed in the at least one surface field, so that their predetermined number and optionally predetermined arrangement and / or orientation in the field during the manufacturing process for the value and / or security document is maintained.
  • the adhesive is a hot-melt adhesive, ie an adhesive which melts when heated.
  • the adhesive may also be a reactive adhesive, for example an acrylate adhesive.
  • the hotmelt adhesive has, for example, a softening temperature of 50 to 200.degree. C., preferably of 80 to 120.degree.
  • the adhesive is preferably not tacky at room temperature.
  • the fibers can be well isolated at room temperature.
  • the hotmelt adhesive may for example be formed from polyamide or from a polyamide copolymer.
  • the adhesive may be formed of polyamide 12, polyamide 6 or polyamide 6.6.
  • the adhesive is formed of polyamide 6 or a copolymer of polyamide.
  • This glue can encase a core of the fibers.
  • This core may for example be formed from polyamide 6.6.
  • polyamide polyethylene, polyethylene terephthalate, polyvinyl chloride, cellulose or their derivatives, such as viscose or cellophane, into consideration. Polyamide is preferred.
  • the fibers are applied to the at least one substrate surface, the fibers are fixed there, for example by heating.
  • the substrate can be heated immediately before the application of the fibers.
  • the at least one substrate surface in another preferred development of the present invention can also be provided with an adhesive, for example with a hot-melt adhesive or with a reactive adhesive.
  • the fibers are applied to the provided with the adhesive surfaces of the substrate and fixed there, for example by heating.
  • a metering device for the fibers.
  • this metering device By means of this metering device several individual fibers are placed one after the other or simultaneously in the surface field. During or immediately after, the fibers are fixed on the substrate surface. To place individual fibers, these are first separated.
  • a separating device can be used.
  • fibrous fibers may be separated from the strand by means of the singulator and placed on the surface simultaneously with the separation or immediately after separation.
  • the separating device may have a cutting device for separating individual fibers from the strand.
  • the fibers are sequentially separated from the strand.
  • a preferred method of severing is to cut each strand section from the strand and place these sections as fibers on the surface.
  • the strand may, for example, be wound up or may be produced immediately prior to the separation of the individual strand sections, for example in an extrusion or other strand formation process.
  • a fiber may be sheared from the strand (s) after extruding a strand length corresponding to a fiber length from an extrusion die of an extrusion device (with one or more spinnerets) or from another strand forming device.
  • the separated part forms a fiber, which is conveyed for example by means of a manipulator in the surface field and placed there, so that it can be fixed there.
  • the spinneret of the extrusion device can also be arranged in the immediate vicinity of the surface field, so that the formed fiber strand already reaches the substrate surface during its formation. After contact with the surface or shortly before the fiber strand is then separated, so that the fiber reaches the surface.
  • the fiber material is typically formed by a dielectric, its surface tension can be controlled by a separately generated electrostatic surface charge on the fibers.
  • the manipulator or stranding device In order to place the fibers on the substrate surface, the manipulator or stranding device is moved relative to the substrate surface in order to be able to place the fibers at specific locations on the surface in a targeted manner.
  • the fibers then adhere there, for example by means of the adhesive or by means of a surface charge of the fibers with respect to the substrate surface, suitably adjusted for this purpose.
  • the substrate surface may be heated, so that the adhesive of the fibers at least partially melts on contact with the surface, so that an adhesion of the fiber to the surface forms.
  • a filament suitable for producing the fibers may be provided, and a respective fiber may be separated from the filament, for example, cut off, so as to be applied to the surface of the substrate in the surface field.
  • the fibers are fixed during or after application to the substrate surface.
  • hot melt fixable fibers they are fixed by introducing heat and in the case of fixable by means of a reactive adhesive fibers by irradiation of electromagnetic radiation, such as UV radiation.
  • fixable by means of a hot melt adhesive fibers these can be fixed for example by means of a hot press roll on the surface.
  • the substrate surface may also be sticky.
  • the substrate, on the at least one surface of which the fibers are applied and fixed there, can be gathered together with further substrates, for example further polymer films or other film-like materials, such as paper, as layers to form a stack, so that the surface provided with the fibers / n outside and / or arranged inside is / are.
  • further substrates for example further polymer films or other film-like materials, such as paper
  • the latter is beneficial because of a falsification or falsification of the product then only extremely difficult, because the fiber plane / s would / n this be exposed. If the stack is welded to a monolithic laminate by the application of heat and pressure, it is preferred that the fibers also fuse with the surrounding material, thereby further complicating delamination.
  • the security feature is on the outside of the laminate after lamination, it can be protected from tampering by subsequent coating with a protective varnish or protective film.
  • this protective lacquer or protective film serves to protect the product against mechanical damage (scratches) during use.
  • a diffractive film can be attached.
  • the polymer films typically have a thickness of from 25 to 150 ⁇ m, preferably from 50 to 100 ⁇ m.
  • the laminates produced can, for example, represent card-shaped objects or be singulated into card-shaped individual uses. In principle, the laminate can also be a construction for a multilayer banknote.
  • At least one substrate surface covered with the fibers is located in the value and / or security product
  • at least those parts of the product which are located between the at least one substrate surface and the fibers by the viewer are preferably transparent or at least translucent and more preferred colorless or optionally only slightly colored in order to be able to recognize the at least one surface area with the fibers.
  • product material located beyond the at least one substrate surface on which the at least one surface field is arranged may also be opaque and optionally colored. Of course, this outlying product material may of course also be transparent or translucent and colorless.
  • the valuable and / or security product may be formed from a polymer selected from a group comprising polycarbonate (PC), in particular bisphenol A polycarbonate, polyethylene terephthalate (PET), derivatives thereof, such as glycol modified PET (PETG), Polyethylene naphthalate (PEN), polyvinyl chloride (PVC), polyvinyl butyral (PVB), polymethylmethacrylate (PMMA), polyimide (P1), polyvinyl alcohol (PVA), polystyrene (PS), polyvinylphenol (PVP), polypropylene (PP), polyethylene (PE), thermoplastic elastomers (TPE), especially thermoplastic polyurethane (TPU), acrylonitrile-butadiene Styrene copolymer (ABS) and its derivatives, and / or paper.
  • PC polycarbonate
  • PET polyethylene terephthalate
  • PET polyethylene terephthalate
  • PTT polyethylene terephthalate
  • PMMA polymethylmethacrylate
  • the product can also be made of several of these materials. It preferably consists of PC or PC / TPU / PC.
  • the polymers may be either unfilled or filled. In the latter case they are preferably transparent or translucent. If the polymers are filled, they are opaque.
  • the above information relates both to films to be bonded together and to liquid formulations applied to a precursor, such as a resist.
  • the product is preferably prepared from 3 to 12, preferably 4 to 10, films.
  • a laminate formed in this way can finally be coated on one or both sides with a protective lacquer. Overlay layers formed in this way protect a security feature arranged underneath and / or give the document the required abrasion resistance.
  • the security feature is preferably formed on at least one of the inner layers.
  • the at least one substrate, on the at least one surface of which the at least one surface field is located, is thus formed in each case by a product layer or by the product itself.
  • a precursor for the value and / or security product for example a blank which does not yet have all the product layers, but most of the security features of the document, can also be used as the substrate.
  • the value and / or security product according to the invention can have, in addition to the security feature according to the invention, at least one further security feature which is either individualizing or not individualizing.
  • Other security features include guilloches, watermarks, embossing prints, a security thread, microfilm, tipping pictures, holograms, optically variable pigments, luminescent colors, transmitted light register and the like.
  • the document may also comprise electronic components, for example an RFID circuit with antenna and RFID microchip, electronic display elements, LEDs, touch-sensitive sensors and the like.
  • the electronic components may be hidden between two opaque layers of the document.
  • the ID card 100 has a front side 101 and a rear side (not shown) (FIG. Fig. 1A, 1B ).
  • the front side has multiple fields 102, 103, 104 of personal data (for example, the facial image, name, date of birth of the card holder, and a personal number) identifying the card holder.
  • personal data for example, the facial image, name, date of birth of the card holder, and a personal number
  • These data are generated inside on an inner surface 310 of a substrate 300 in the card ( Fig. 2 ), ie, for example, under a protective coating to prevent manipulation of this card and also to avoid mechanical damage to the card.
  • this card 100 has a security feature 200 according to the invention.
  • This feature is formed by a surface panel 210 in which mica fibers 220 are made of polyamide.
  • the mottled fibers have a diameter of 40 ⁇ m and a length of 5 mm.
  • the mottled fibers are not visible when illuminated with electromagnetic radiation in the visible spectral range (VIS) ( Fig. 1A ). At most, by a slight intrinsic color and / or by light scattering, these fibers can also be under normal lighting be perceived.
  • the field itself is not visible because its outlines are not marked. In Fig. 1A, 1B the field is marked for illustrative purposes only.
  • the mottled fibers can be made visible in the surface field ( Fig. 1B ).
  • the mottled fibers contain one or more luminescent substances which can be excited by UV radiation and emit luminescence radiation in the visible spectral range. For example, if it is a europium-doped oxysulfide, the excited mottled fibers luminesce red.
  • the mottled fibers are fixed for example by means of a hot melt adhesive on the card surface.
  • the fibers consist in part of an envelope 221 which is formed from a hot-melt adhesive made of polyamide 6 and which encloses a core 222 made of polyamide 6.6 ( Fig. 7 ).
  • the luminescent substances are contained for example in the enclosure.
  • a specific embodiment of the security feature 200 according to the invention is shown on a substrate 300.
  • mottled fibers may also be excitable for luminescence by means of UV radiation, for example.
  • the mottled fibers can be provided with a terbium-doped oxysulfide. The luminescent substance luminesces green upon irradiation with the UV light.
  • the mottled fibers 230 of the same type ie with the same luminescent substance and of the same size, are scattered and fixed onto the substrate surface 310, these mottled fibers likewise being randomly distributed on the surface 310. Since the surface field on the substrate surface 310 is not marked, it is not recognizable by a viewer. Even when irradiated with UV light, with which the mica fibers 220 located within the surface field are made visible, their position and size are imperceptible because of the entire surface application of mottled fibers. Therefore, the security feature 200 is not detectable by a third party. This holds true as long as the size and location of the surface field are unknown. In contrast, if the position of the surface field is known, the number n of mottled fibers present in the field may be be determined and thus the authenticity of this security feature having ID card 100 are verified.
  • the document may be an identification document, for example the ID card of Fig. 1 , be.
  • the field value resulting from the number n of mottled fibers in the surface field may in this case code, for example, for the issuing location of the ID card.
  • this information may be located elsewhere on the ID card so that the information encoded with the field value may be compared with the information located elsewhere to verify the authenticity of the ID card.
  • Fig. 3A shows eleven mottled fibers arranged in three rows of four, three and four mottled fibers, respectively. The mottled fibers are aligned parallel to each other and standing vertically.
  • Fig. 3B also shows eleven mottled fibers arranged in three rows of four, three and four mottled fibers, respectively. The mottled fibers are alternately vertically or horizontally oriented in the upper and lower rows and exclusively horizontal in the middle row.
  • Fig. 3C also shows eleven mottled fibers arranged in three rows of three, five and three mottled fibers, respectively. The mottled fibers are in turn aligned parallel to each other and standing vertically.
  • the mordant fibers of the first type 220 may be a luminescent green luminescent substance and the mottle fibers of the second type 220 'may be a red luminescent one Contain luminescent substance.
  • 3D shows a regular arrangement of these mica fibers with three fibers in three rows and alternating arrangement of the two types and alternating orientation in each case 45 ° to the vertical or horizontal inclined orientation.
  • Fig. 3E shows a random arrangement with regard to the position and orientation of the mottled fibers of the two types.
  • Fig. 3F again shows a regular arrangement of the mottled fibers of the two types, each with three Meliermaschinen in three rows and alternating arrangement of the two types, but each with parallel alignment to each other.
  • Fig. 4 11 shows further examples of arrangements of mottled fibers 220 in a surface field 210 on the surface 310 of a substrate 300:
  • Fig. 4A shows a circular
  • Fig. 4B a rectangular
  • Fig. 4C a star-shaped surface field.
  • FIG. 5 shows a surface panel 210 distributed on two surfaces 310, 310 'of a respective substrate 300, 300', which are spaced apart from each other, for example two tops of abutting polymer sheets.
  • a first part 211 of the surface field 210 is located on the first substrate surface 310 and a second part 212 of the surface field 210 is on the second substrate surface 310 '. Both parts together form the surface field 210.
  • a substrate 300 for example a polymer film piece 300 made of polycarbonate with a thickness of 80 microns, for example, has a format of 10 cm x 25 cm, this is placed on a conveyor belt 400 and in the specified transport direction T to a metering device 500 ( Fig. 5 ).
  • the mottled fibers have, for example, on the outside a sheath 221 made of a hotmelt adhesive. Please refer to the comments on Fig. 1 directed. To ensure that the mottled fibers to be applied initially adhere to the polymer film piece when they are applied, it is preheated.
  • a heating device 600 for example an IR emitter, is provided, under which the polymer film piece is arranged for a short time.
  • the polymer film piece is then moved with the conveyor belt under the metering device and stopped there, so that all mottled fibers can be applied in the surface field 210 on the polymer film surface.
  • the polymer film is conveyed by means of the conveyor belt so that it passes through a fixing device 700.
  • the fixing device is formed, for example, by a hot press roll with which the hotmelt adhesive of the mottled fibers is melted and the fibers are fixed on the polymer film surface.
  • the metering device 500 is shown during the application of a mica fiber 220 into a surface panel 210 on the polymer surface 310.
  • the metering device is an extrusion head with several spinnerets, from which the material of the mottled fibers to be formed emerges in a molten state.
  • the extrusion head comprises a plurality of spinnerets for the sheath material (polyamide 6) disposed about a central spinneret for the core material (polyamide 6.6) (not shown).
  • a fiber material is formed, which is approximately the in Fig. 7 having shown fiber structure.
  • the molten material is pressed down in a filament 225 and cooled, so that the fiber mass passes from the molten to the solid state.
  • the formed fiber filament passes on the polymer film surface 310 in the formation process and lies down with its filament end on this.
  • the cladding 221 of the filament partially softens and thus slightly adheres to the surface at.
  • the down-hanging and partially already adherent filament portion is cut off by means of a separator 510 located a short distance below the extrusion head so that the filament portion can be laid onto the polymer film surface as a newly formed fiber 220.
  • the extrusion head 500 is also movable parallel to the surface in the x and y directions R h1 , R h2 . This allows different positions within the surface field to be approached.
  • this mobility of the head also serves to move the head during the mica fiber formation process, ie, during deposition of the filament portion on the surface, so that a given orientation of the fibers in the surface field can be realized.

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  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Credit Cards Or The Like (AREA)

Claims (12)

  1. Ensemble de plusieurs exemplaires d'un produit de valeur et/ou de sécurité (100), lesquels présentent respectivement une caractéristique de sécurité (200), dans lequel la caractéristique de sécurité (200) est formée par des particules (220, 220'), disposées sur au moins une surface (310) d'au moins un substrat (300), d'un produit à disperser, dans lequel respectivement au moins un champ de surface (210) est formé sur l'au moins une surface (310) de l'au moins un substrat (300), caractérisé en ce que le nombre (n) des particules (220, 220') est respectivement spécifié dans l'au moins un champ de surface (210) et est ainsi identique dans tous les exemplaires du produit de valeur et/ou de sécurité (100).
  2. Ensemble selon la revendication 1, caractérisé en ce que les particules du produit à disperser sont des fibres (220, 220').
  3. Ensemble selon l'une quelconque des revendications précédentes, caractérisé en ce que le nombre (n) des particules (220, 220') du produit à disperser dans l'au moins un champ de surface (210) code une information.
  4. Ensemble selon l'une quelconque des revendications précédentes, caractérisé en ce que de la même manière des particules (220, 220') du produit à disperser se trouvent à l'extérieur du champ de surface (210) sur la surface (310) du substrat (300).
  5. Ensemble selon l'une quelconque des revendications précédentes, caractérisé en ce que des particules (220, 220') du produit à disperser sont disposées sur l'au moins une surface (310) dans l'au moins un champ de surface (210), lesquelles particules relèvent au moins de deux types de particules (220, 220'), dont respectivement un nombre (nl) spécifié se trouve dans l'au moins un champ de surface (210).
  6. Ensemble selon la revendication 5, caractérisé en ce que différents types de particules (220, 220') se distinguent les uns des autres par leur couleur perceptible par l'oeil de l'homme.
  7. Ensemble selon la revendication 6, caractérisé en ce que la couleur perceptible par l'oeil de l'homme des particules (220, 220') peut être produite par l'éclairage avec un rayonnement électromagnétique dans la plage spectrale visible et/ou par l'excitation des particules (220, 220') aux fins de la luminescence.
  8. Ensemble selon l'une quelconque des revendications précédentes, caractérisé en ce que les particules (220, 220') du produit à disperser présentent au moins en partie côté extérieur une colle.
  9. Ensemble selon la revendication 8, caractérisé en ce que la colle est une colle thermofusible.
  10. Procédé servant à fabriquer une caractéristique de sécurité (200) pour un produit de valeur et/ou de sécurité (100), comprenant les étapes de procédé suivantes consistant à :
    (a) fournir au moins un substrat (300) avec respectivement au moins une surface (310) ;
    b) fournir des particules (220, 220') d'un produit à disperser d'au moins un type ;
    c) appliquer les particules (220, 220') du produit à disperser sur l'au moins une surface (310) ;
    caractérisé en ce que les particules (220, 220') du produit à disperser sont appliquées en respectivement un nombre (n) spécifié dans au moins un champ de surface (210) sur l'au moins une surface (310).
  11. Procédé selon la revendication 10, caractérisé en ce que les particules du produit à disperser sont des fibres (220, 220').
  12. Procédé selon la revendication 11, caractérisé en ce que la fourniture de particules (220, 220') d'un produit à disperser au moins d'un type selon l'étape de procédé (b) comprend :
    (b1) la fourniture d'un filament (225) convenant à la fabrication de fibres (220, 220') ;
    (b2) la séparation respectivement d'une fibre (220, 220') du filament (225) afin d'appliquer les fibres (220, 220') dans le champ de surface (210) sur une surface (310) d'un substrat (300).
EP13791789.4A 2012-11-13 2013-11-12 Jeu de plusieures exemplaires d'un produit de valeur et/ou de sécurité, et procédé de fabrication d'une caractéristique de sécurité Active EP2920001B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012220703.1A DE102012220703B4 (de) 2012-11-13 2012-11-13 Sicherheitsmerkmal für ein Wert- und/oder Sicherheitsprodukt, das Wert- und/oder Sicherheitsprodukt und Verfahren zum Herstellen des Sicherheitsmerkmals
PCT/EP2013/073568 WO2014076056A1 (fr) 2012-11-13 2013-11-12 Caractéristique de sécurité pour un produit de valeur et/ou de sécurité, ce produit de valeur et/ou de sécurité, et procédé de fabrication de la caractéristique de sécurité

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EP2920001A1 EP2920001A1 (fr) 2015-09-23
EP2920001B1 true EP2920001B1 (fr) 2017-03-01

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EP (1) EP2920001B1 (fr)
DE (1) DE102012220703B4 (fr)
WO (1) WO2014076056A1 (fr)

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CN109835084B (zh) * 2017-11-27 2021-07-16 吴宁飞 新型防伪材料在防伪支付及货币防伪、银行卡等上的应用

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DE10204870B4 (de) * 2002-02-06 2018-11-15 Infineon Technologies Ag Verfahren zur Fälschungssicherung eines Wertträgers, Wertträger und Verfahren zur Überprüfung seiner Echtheit
DE10324630A1 (de) 2003-05-28 2004-12-23 Giesecke & Devrient Gmbh Sicherheitspapier
DE102009040747B3 (de) * 2009-09-08 2011-07-21 Bundesdruckerei GmbH, 10969 Bilumineszente Melierfasern, eine diese aufweisende Folie, Dokument mit diesen sowie Verfahren zu ihrer Herstellung und ein Verfahren zur Herstellung eines Dokuments mit diesen
DE102010051809A1 (de) * 2009-12-17 2011-06-22 Heidelberger Druckmaschinen AG, 69115 Verfahren zum Erzeugen eines Sicherheitsmerkmals auf einem Druck- oder Verpackungsprodukt
DE102010063015B4 (de) * 2010-12-14 2014-02-27 Bundesdruckerei Gmbh Vorrichtung und Verfahren zum Aufbringen von Melierfasern auf ein Substrat

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EP2920001A1 (fr) 2015-09-23
WO2014076056A1 (fr) 2014-05-22
DE102012220703A1 (de) 2014-05-15

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