WO2014076074A1 - Procédé permettant de produire une caractéristique de sécurité pour un produit de valeur et/ou de sécurité, et produit de valeur et/ou de sécurité - Google Patents

Procédé permettant de produire une caractéristique de sécurité pour un produit de valeur et/ou de sécurité, et produit de valeur et/ou de sécurité Download PDF

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Publication number
WO2014076074A1
WO2014076074A1 PCT/EP2013/073610 EP2013073610W WO2014076074A1 WO 2014076074 A1 WO2014076074 A1 WO 2014076074A1 EP 2013073610 W EP2013073610 W EP 2013073610W WO 2014076074 A1 WO2014076074 A1 WO 2014076074A1
Authority
WO
WIPO (PCT)
Prior art keywords
substrate
application element
security
adhesion promoter
layer
Prior art date
Application number
PCT/EP2013/073610
Other languages
German (de)
English (en)
Inventor
Mario GATTNER
Franziska Peinze
Arthur Mathea
Stefan TRÖLENBERG
Olga Kulikovska
Original Assignee
Bundesdruckerei Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bundesdruckerei Gmbh filed Critical Bundesdruckerei Gmbh
Priority to EP13789332.7A priority Critical patent/EP2919997B1/fr
Publication of WO2014076074A1 publication Critical patent/WO2014076074A1/fr

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Classifications

    • 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
    • B41M3/006—Patterns of chemical products used for a specific purpose, e.g. pesticides, perfumes, adhesive patterns; use of microencapsulated material; Printing on smoking articles
    • 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
    • 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
    • B41M5/025—Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet
    • B41M5/0256—Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet the transferable ink pattern being obtained by means of a computer driven printer, e.g. an ink jet or laser printer, or by electrographic means

Definitions

  • the present invention relates to a method for generating a security feature for a value and / or security product, for example for a security and / or security document or security element, as well as such a value and / or security product.
  • 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 test the authenticity and / or coding of information, 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.
  • Personalizing, for example personalizing, security features also contain, in coded form or also in plain text, information about the type of document and / or about its owner and / or about an item to which the document is assigned.
  • Such information may include a face image / portrait (for example in the form of a photograph) of the owner, his or her personal data such as name, date of birth, place of birth, signature, a personal identifier such as a membership number, or biometric data of the holder, such as fingerprints. Iris and retina recognition.
  • 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.
  • DE 692 07 751 T2 describes a printing method in which the object to be printed is coated with a cold adhesive to be transferred at the locations which correspond to a desired printing motif. Subsequently, a coating film carried by a printing material is transferred cold and under pressure.
  • the coating film may be formed by a thin coating layer, in particular of metal, such as gold, silver or aluminum.
  • a cold foil transfer device is also described. It is stated that with cold foil stamping machines a transfer layer can be transferred to the printing substrate under pressure and preferably without the action of heat.
  • an adhesive is printed with a printing unit upstream of the transfer unit so that a printed image of adhesive remains on the printing material.
  • a transfer layer corresponding to the print image is then imagewise removed from the transfer film used, so that it adheres to the sheet. In this case, the transfer layer can essentially be partially transferred in the areas exposed to adhesive. It is stated that with the transfer devices labels or holograms can be held on a transfer film and transferred as a transfer layer to the substrate.
  • 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 or an item to which the product is assigned.
  • 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.
  • the present invention is therefore based on the object to provide a solution for further developed security features that are easy to manufacture and therefore cost.
  • value and / or security product which can be in particular a value and / or security document or a security element, this includes, for example, a travel passport, identity card, driving 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, a check, bank, credit or cash card, customer card, health card, chip card, a company card , Proof of Entitlement, membership card, gift or purchase voucher, bill of lading or other proof of entitlement, tax stamp, postage stamp, ticket, token, token, adhesive label (for example, for product assurance) or any other document.
  • a product according to the invention can also be a security element, for example a sticker, label or the like, which has the security feature according to the invention and which can be permanently connected to a precursor of a value and / or security document in order to secure the security and value document to build.
  • the product may be, for example, a smart card.
  • the security and / or security document may be in ID 1, ID 2, ID 3, or any other normalized or non-normalized format, such as in a booklet form, such as a passport-like item, or, for example, in card form.
  • 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 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 (PI), polyvinyl alcohol (PVA), polystyrene (PS), polyvinylphenol (PVP), polypropylene (PP), polyethylene (PE ), thermoplastic elastomers (TPE), in particular thermoplastic polyurethane (TPU), acrylonitrile-butadiene-styrene copolymer (ABS) and derivatives thereof, and / or paper and / or cardboard and / or glass and / or metal and / or ceramic.
  • PC polycarbonate
  • PET polyethylene terephthalate
  • PEN glycol modified PET
  • 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 joined together and to liquid formulations applied to a precursor, such as a protective or topcoat.
  • the product is from 3 to 12, preferably 4 to 10 films produced.
  • a laminate formed in this way can finally be coated on one or both sides with the 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 of the product.
  • security feature a feature which preferably causes an optical impression which can be determined by means of optical recognition methods and which is produced by an optically perceptible design.
  • an electrical or magnetic identifier can also be stored and read out.
  • the design of an optical, in particular visually, perceptible security feature can be monochrome or multicolored, black / white or gray tones.
  • the design may include visual, especially visual, perceptual individualizing information.
  • the security feature may be configured to be directly perceived by a user, or it may be a machine-readable feature. In the latter case, the security feature is detected by means of, for example, electromagnetic radiation, spatially resolved receiving device and perceived by a viewer or evaluated by means of a device provided for this purpose.
  • pattern is used in the description and in the claims of the present application, this is to be understood as a two-dimensional arrangement of at least one structure on a substrate surface.
  • a pattern may have any abstract shape, such as lines, areas, any combination, or alternatively characters, such as alphanumeric characters, or images, such as the photograph of the document owner or representations of particular objects. Any other information can also be displayed graphically.
  • the two-dimensional arrangement can be formed, in particular, by adhesion regions in which adhesion promoters are located, wherein adjacent adhesion regions are separated from one another by free regions in which no adhesion promoter is located.
  • An adhesion area is formed by a coherent two-dimensional structure (arbitrarily shaped area on the substrate surface).
  • the adhesion promoter forms a layer on the substrate surface, the adhesion promoter being located only in the adhesion region (s) on the surface. det. This layer is thus formed by the adhesive located in the adhesion areas.
  • a method for generating a security feature for a value and / or security product which comprises the following method steps:
  • the substrate has two surfaces, a first surface on an upper surface and a second surface on a lower surface of the substrate; the substrate is in particular a flat material;
  • the front side of the application element is preferably that side which is to face the viewer, in the case of an application element, for example with a metal layer or with a lenticular, consequently that side which has the metal layer or the lenticular grid;
  • the back of the application element is provided for attachment to a substrate, in the present case on the substrate;
  • the at least one layer of the adhesion promoter is produced in method step (b) by means of a digital printing method.
  • a substrate (a) a substrate; the substrate has two surfaces, a first surface on an upper surface and a second surface on a lower surface of the substrate;
  • (B) in each case one by means of a coupling agent with at least one of the surfaces of the substrate connected to the application element, wherein the application element is located exclusively in at least one adjoining one or more free areas AdPSsions Scheme, but not in the at least one free area.
  • the application element in the at least one adhesion region in the form of an individualizing marking is arranged in a structured manner on the at least one surface of the substrate.
  • the security features may be present in the form of the application elements or be parts of the application elements and be applied to the substrate surface using the method according to the invention.
  • the application elements can be transfer elements.
  • an embossed hologram, a kinegraphic element, an optically variable device (OVD) or other security element made with a printing process, or any other security element provided for application to a precursor (blank) of a security and / or security document are applied to the blank by the method and then patterned thereon to form an individualizing pattern.
  • the adhesion promoter is applied in a structured manner to the substrate or to the back side of the application element before the element is applied using the digital printing method.
  • the printed adhesion promoter is produced in the form of the preferably individualizing pattern on a surface of the substrate or the back of the application element.
  • the pattern of the bonding agent is from the Adhesion areas formed adjacent to the free areas between the AdPSsions Schemeen.
  • the parts of the adhesion promoter located in the adhesion areas form adhesion promoter structures there. Since the digital printing method is suitable for forming different patterns from print image to print image, an associated identification feature can be generated on the document for each document, person or object to which the document is to be assigned.
  • the applied element may in turn already be a security feature exhibiting security element, for example, an authenticity feature or a genus of the value and / or security product determining feature. In general, this element will not contain any individualizing information.
  • the structuring of this element predetermined by the adhesion promoter layer achieves a superposition of this security feature with the structuring of the security feature according to the invention.
  • the security feature according to the invention can in particular be individualizing.
  • Another advantage of the method according to the invention is that no embossing tools, that is, for example, printing plates for applying the adhesive or hot stamping dies, are required. Therefore, the method is not only externally extremely flexibly applicable but also inexpensive and inexpensive.
  • a further advantage of the invention lies in structuring printing inks, for example a color which can be printed only by screen printing or intaglio printing, such as, for example, an optically variable ink (OVI), as is known, for example, from bank notes, by means of a digital printing process.
  • OVI optically variable ink
  • the OVI is first applied to a film surface, for example by screen printing. Subsequently, this film is used as described above as an application element.
  • the substrate may be in the form of a film or in the form of a more rigid article than a film, such as a plate or card.
  • the substrate may be in the form of a sheet or sheet or card or ribbon. It can be single-layered or formed from several layers. It may be made from any of the polymers mentioned for the value and / or security product and may be present unfilled or filled with fillers, such as pigments, reinforcing materials, such as fibers.
  • the substrate can therefore be transparent or translucent (not light or hardly light absorbing, but light scattering) or opaque be. It may also be uncolored or colored (ie, absorbing in the visible, UV, and / or IR spectral region, and / or emitting dyes, including luminescent substances) in these spectral regions.
  • the substrate may be a precursor (blank) for a security and / or security document and, in addition to the security feature to be formed by the method according to the invention, further security features, such as guilloches, a security thread, microfilm, a fluorescent print pattern or a see-through pass.
  • the two-dimensional distribution of the free areas and the adhesion areas on the surface of the substrate can be arbitrary. It can be provided that only one free area and an adhesion area or an open area and a plurality of adhesion areas or a plurality of free areas and a plurality of adhesion areas are located on each of the surfaces.
  • the free areas and the adhesion areas may be in a regular arrangement with respect to each other or in an irregular (stochastic) arrangement.
  • the adhesion areas may, for example, be present in a hexagonal arrangement, wherein the free areas separate the adhesion areas from one another.
  • the adhesion areas can be formed for example by simple geometric shapes, for example by circles, squares, rectangles, hexagons, elongated structures, such as lines, ellipses, and the like. Adhesion areas in several of these forms can occur together. If there are multiple adhesion areas, they are isolated from each other, ie they do not touch. Adhesion ranges can be rasterized or un-rasterized.
  • the adhesion areas together form a two-dimensional structure which, for example, encodes information and preferably forms an individualizing pattern. For example, the pattern may form one or more alphanumeric or other characters, an image, a crest, a logo, or the like.
  • the layer of the adhesion promoter may be formed on one or both surfaces of the substrate or on the back of the application element.
  • the at least one adhesion promoter layer is designed in the form of an individualizing, for example personalizing, marking which is formed by adhesion promoter structures.
  • the adhesion areas and the free areas are to be arranged in a suitable form to each other.
  • the individualizing marking can be identified by the owner of the value and / or security document by lettering with owner-specific data, for example by the name, address, birthday or birthplace lettering, or an image representation, for example by the face image of the document holder or Playback of his signature, be formed for an object, such as a motor vehicle, for example by its VIN and for the document itself, for example by a serial number.
  • the adhesion promoter is preferably applied to one or both surfaces of the substrate or to the back side of the application element by means of a non-impact printing method.
  • the non-impact printing method can be an ink jet printing method (inkjet printing method) in a preferred embodiment of the present invention.
  • the inkjet printing process may be a drop-on-demand (single-pressure drop) or continuous-inkjet (continuous-pressure-medium) printing process.
  • Preferred is a drop-on-demand printing method.
  • any other digital printing method may be used, for example, a disk server drive or a xerographic method.
  • the adhesion promoter may be in the form of a cold foil adhesive, a hot foil adhesive, a lacquer, an ink or the like.
  • the printing agent may be provided in the form of a solution of the coupling agent in which it is dissolved or suspended in a solvent or without the use of a solvent.
  • the printing agent may also contain suitable antifoaming agents, modifiers, wetting agents, surfactants, flow agents, dryers, catalysts, (light) stabilizers, preservatives, biocides, organic viscosity adjusting polymers, buffer systems and the like commonly used in inks for use in inks - Radiation pressure are included.
  • the adhesion promoter is designed to enter into a firm connection with the substrate surface and with the application element under suitable conditions, for example by activation by means of temperature increase or irradiation with electromagnetic radiation of suitable wavelength, for example UV radiation.
  • the adhesion promoter crosslinks during irradiation and forms the compound.
  • the adhesion promoter may contain, for example, at least one polymer which is tacky at room temperature or formed by it, and / or at least one polymer which becomes tacky only at elevated temperature, for example ⁇ to 300' ⁇ , and / or at least one polymer that is not initially cured and then cured under the action of electromagnetic radiation becomes, whereby the solid connection with the substrate surface and with the application element is brought about.
  • the primer may be a varnish, for example an acrylic resin-based varnish.
  • the acrylic resin can cure under UV irradiation.
  • the adhesion promoter can also be cured by mechanical pressing, for example when using a suitable cyanoacrylate adhesive.
  • the adhesion promoter is preferably transparent or translucent. He can also be opaque in principle. It can be uncoloured or colored.
  • the application element may be in the form of a ribbon or bow or patch or the like. It may have a very small thickness, for example 5 ⁇ . The thickness may also be greater, for example 50 ⁇ or even greater, for example 100 ⁇ or 250 ⁇ or 500 ⁇ or even 1 mm. In the latter cases, the application element is less flexible and twistable but rather more or less rigid.
  • the application element may have a carrier foil which carries a functional element, wherein a separating foil or separating layer may optionally be present between the carrier foil and the functional element, all these elements forming the application element. Alternatively, the application element is formed exclusively from the functional element.
  • the carrier film of the application element can be formed, for example, from polyester, in particular polyethylene terephthalate.
  • the release film / layer can be formed, for example, from an oligo- or polyalkylene, for example paraffin, polyethylene or polypropylene, or a silicone polymer.
  • the release film / layer serves to detach itself from the latter during or after the application of the functional element to the substrate surface, so that the functional element remains on the substrate surface, as far as it has come into contact with the adhesion promoter.
  • the adhesive strength between the release film / layer and the carrier film on the one hand and the adjacent layers or layers of the functional element on the other hand is preferably large enough to prevent the parts of the functional element located in the free areas from overcoming the cohesive forces within the functional element To be able to separate functional element parts located in the adhesion regions, so that the latter remain on the substrate surface when the application element is removed.
  • the functional element is also in the form of a foil or element that is less flexible and twistable than a foil.
  • the functional element can be constructed in one or more layers / layers depending on its function. Each of these layers can be formed of polymer, metal, by a polymer layer, lacquer layer, color layer or the like.
  • Each of the polymers used may be one of those specified for the value and / or security product Polymers and be transparent, translucent or opaque.
  • the polymers may also be unfilled or filled with fillers. They may also be undyed or dyed with dyes absorbing and / or emitting in the visible, UV and / or IR spectral region, including luminescent substances, and / or pigments, including luminescent pigments and optically variable pigments.
  • Each of the layers may be configured differently with respect to the polymer or other materials, dyes and fillers.
  • the metal layer may be made of silver, gold, aluminum or another metal. Furthermore, alloys are also conceivable which have certain colorations of the metal, wherein different metals and / or metal alloys can be structured, ie arranged in a specific pattern.
  • the metal may be applied to a polymer layer or cantilevered by conventional methods such as vapor deposition, sputtering, electrochemical deposition, lamination, and the like.
  • the structure of the functional layer depends on the type of security feature formed therewith.
  • the application element is a security element in a preferred development of the present invention. Alternatively, it can also be an exclusively decorative element.
  • the functional element can accordingly be formed by or contain an inventive security feature.
  • the security element may in particular be a light-diffractive and / or refractive and / or light-reflecting and / or light-absorbing and / or light-emitting and / or electrically conductive and / or magnetizable element.
  • the application element can be formed by an element provided with an optically variable pigment, a polarization filter, an interference filter, a hologram, a kinegraphic element, a tilting image, an optically variable device (OVD), a magnetic strip or a metal dielectric optical thin film.
  • a metal-dielectric optical thin film is to be understood as meaning optically variable films based on interference effects (see Optical Document Security, RL van Renesse, Artech House, Boston, 3rd edition, 2005, page 231).
  • the application element can be an OVD an OVI (optically variable ink) supporting element, ie an element having at least one provided with optically variable pigment layer / layer, an example, for forming an OLED (organic light) or LED (light emitting diode) suitable electrically conductive element , a metallic effect element, a metallic reflecting element, a magnetic element, for example, for individualizing magnetic strips, a metal dielectric optical thin film, a light polarizing element, an interference element, an element with iridescent colors, a holographic element, such as an embossed hologram , or another diffractive element or the like be.
  • These elements may each be in the form of a film.
  • the functional layer of the element is present on a base layer.
  • the element may also be a self-supporting functional element.
  • the said functional elements of the security elements can furthermore be present on the carrier foil formed, for example, in the form of a band.
  • the security element can have a light-diffractive element, in particular a hologram or an OVD, which is a transfer element and is supported by the carrier foil.
  • An OVD (kinegraphic element) may be a diffractive structure showing different representations at different viewing angles.
  • the application element can also be produced by printing a color, in particular an optically variable ink (OVI).
  • OVI optically variable ink
  • a commercially available OVI color screenprinted over the entire surface of a film for example, a 50 ⁇ or 100 ⁇ thick PC film, printed. After curing, for example thermally or by means of UV, this so-printed film can be used as an application element according to the invention.
  • the security feature according to the invention can be arranged on a surface or on both surfaces of the application element. If it is only located on one of the surfaces, it can be located either on the front or on the back.
  • a color (ink) may be printed on the front side and / or the back side of the application element and / or incorporated in the material of the application element.
  • the ink (ink) may contain particles and / or pigments, which more preferably have a particle size of at least 10 ⁇ m in at least one of the particle directions.
  • mica particles and glass beads capable of producing an OVI may be incorporated, for example, in a paint (ink) applied to one of the application elements. In general, such particles and pigments are not printable using an ink jet printer.
  • Such colors can be printed, for example, by screen printing and intaglio printing.
  • the application element is pressed onto the substrate surface, if appropriate under the action of heat, so that the functional element and the substrate surface come into intimate contact with one another via the adhesion promoter layer in the adhesion regions, so that a preferably insoluble bond is formed there between the functional element and the substrate surface.
  • a firm connection of the element to the substrate surface by means of the adhesion promoter can, depending on its type, be made with increasing temperature and / or under the irradiation of electromagnetic radiation for hardening the adhesion promoter. An increase in temperature is required when the primer is a hot melt adhesive having adhesion-promoting properties under the elevated temperature conditions.
  • the parts of the application element which are not connected to the surface of the substrate via the adhesion promoter are removed mechanically therefrom so that the application element is finally structured.
  • these parts of the application element are removed, for example, by peeling.
  • the application element is preferably in the form of a band, so that the band can be lifted off the surface again after the parts of the element lying in the adhesion areas have been joined.
  • the parts of the application element located in the free areas can also be removed mechanically by a method using a tool which when bonded to the surface of the application element forms an adhesive strength therewith which is less than the adhesion strength of the application element Application element to the adhesion promoter, but is large enough to overcome the tearing forces of the application element cohesive forces, so that it stands out in the free areas located element parts, while the remaining element parts remain on the substrate surface.
  • the tool is pressed onto the surface of the application element so that it enters into a connection with this, and then lifted from this again.
  • step (e) is followed by the following further method step:
  • the surface of the substrate on which the structured application element is located may also be gathered together with another single-layer film or a film composite (multilayer film) and then firmly bonded thereto, for example by means of a lamination process.
  • a further film can be laminated or glued onto the surface of the substrate having the structured application element, in particular a volume hologram, a film with a surface hologram (for example a kinegraphic element) or a scratch-resistant film.
  • the substrate provided with application element structures or functional element structures present in the adhesion areas can be additionally provided with an external protective or topcoat layer in order to produce the finished value and / or security product and to give it the required abrasion and scratch resistance, and underlying security feature according to the invention to protect against access from the outside Shen.
  • an external protective or topcoat layer in order to produce the finished value and / or security product and to give it the required abrasion and scratch resistance, and underlying security feature according to the invention to protect against access from the outside Shen.
  • the protective lacquer is to form a protective layer that readily reveals the underlying security feature.
  • the protective lacquer is preferably transparent. If necessary, it can also be translucent.
  • the protective lacquer layer should also be uncoloured. However, it may also have a color in the visible spectral range.
  • the protective lacquer layer may be transparent or opaque in spectral ranges other than the visible spectral range (for example, the IR, UV spectral range).
  • the protective lacquer may include the structure of the security feature according to the invention by filling the intermediate spaces between the functional element structures and penetrating to the substrate surface during application. Since the pattern of the security feature according to the invention thus protrudes into the protective lacquer layer, it is likewise individualized by the security feature according to the invention, in particular personalized, and thus also secured against counterfeiting and distortion.
  • adhesion promoter is transparent or translucent and the applied security element is coated with the outer protective lacquer layer
  • a further preferred embodiment of the present invention which can be used as a security feature is obtained, since outstandingselement Fabricen or functional element structures seem to float within the layer in this case, because these structures rest on the one hand on the adhesion promoter structures and on the other hand are covered by the protective lacquer layer.
  • This optical effect arises in particular when both layers (adhesion promoter layer and protective lacquer layer) are transparent.
  • the adhesion promoter layer and the protective lacquer layer have the same refractive index, so that an interface between the two layers in the free regions is not recognizable.
  • an optically uniform (monolithic) paint block is formed, which encloses the functional element structures on all sides.
  • the adhesion promoter and the protective lacquer in this embodiment are formed from the same material.
  • a further security feature is located on one of the surfaces of the substrate, for example a security feature produced by means of a printing method.
  • the layer of the adhesion promoter is at least partially produced on the further security feature, and the application element is thus also at least partially applied to this further security feature.
  • the further security feature can be, for example, the facial image of the owner of the security and / or security document.
  • a security element forming this security feature can be, for example, a printed passport photograph.
  • the application element or functional element can also be applied to a non-individualizing security printing, for example guilloches or an iris print. In this case, this security feature is perceptible only by the viewer in the free areas kept free by the application or functional element. As a result, this further safety feature can be customized.
  • the application element is applied in a surface area on a surface of the substrate in which there is a surface texture which improves the visibility of the pattern of the application element after the mechanical removal.
  • This improved visibility can be achieved, for example, by a layer on the surface that has a contrasting color or lightening color to the application element.
  • the layer can be luminescent (fluorescent, phosphorescent), for example in the visible spectral range, for example by photo- or electroluminescence.
  • customary in the visible spectral richly absorbing colors are used to increase the contrast or colors that contain luminescent substances.
  • the contrasting color for a metallic glossy application element may be, for example, dark, in particular black.
  • This layer may be located exclusively in an area which is occupied by the application element or may also be larger than this layer area, so that the layer is either visible only in the free areas or also projects laterally from the application element.
  • the layer can be printed. It can completely fill in the layer region or even be present in the form of a pattern, for example with a pattern that exclusively fills the free areas or in a further pattern that is not precisely arranged and / or designed with the free and adhesion regions.
  • the primer layer is formed on said layer.
  • the substrate or the security and / or security document is completely transparent at least in the region in which the adhesion promoter layer and the application element are applied to one of the surfaces of the precursor or of the product are.
  • the pattern of the application element is also visible from the back of the substrate or document.
  • a window may be located in the otherwise opaque substrate or document in this area.
  • the template provided for this purpose can be converted into a halftone halftone pattern by, for example, generating a grid of pixels or lines in different dot size or line width. As a result, a light / dark effect is formed, so that contrasting pattern areas are formed. This pattern is used to create the pattern of the primer layer.
  • the at least one substrate, on whose at least one surface the security feature according to the invention is located can be formed by a respective 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 security and / or security product can have at least one further security feature which is either individualizing or not individualizing.
  • Other security features include guilloché, watermarks, embossing prints, a security thread, microfilm, tipping pictures, transmitted light passer 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.
  • FIG. 1 shows an identity card, for example a company identity card, with a security feature produced by the method according to the invention in a first embodiment; (A) in a schematic plan view; (B) in a schematic
  • FIG. 2 shows an identity card, for example a company identity card, with a security feature produced by the method according to the invention in a second embodiment;
  • FIG. 3 shows an identity card, for example a company identity card, with a security feature produced by the method according to the invention in a third embodiment; (A) in a schematic plan view; (B) in a schematic
  • FIG. 4 shows an identity card, for example a company identity card, with a security feature produced by the method according to the invention in a fourth embodiment; (A) in a schematic plan view; (B) in a schematic
  • FIG. 5 shows an identity card, for example a company identity card, with a security feature produced by the method according to the invention in a fifth embodiment; (A) in a schematic plan view; (B) in a schematic
  • FIG. 6 shows the successive method steps of the method according to the invention in a schematic illustration in a first method variant
  • 7 shows the successive method steps of the method according to the invention in a schematic illustration in a second method variant
  • Fig. 8 shows the peeling of the carrier tape from the substrate in a schematic perspective view.
  • FIGS. 1 to 5 show five embodiments of company identity cards 100 which represent a security document with security features 200 according to the invention.
  • This security card may for example be formed as a laminate 105 of several layers, which consist essentially of polycarbonate. This laminate forms a substrate for the application of the security feature 200 according to the invention.
  • the company card has a front side 101 and a back side (not visible). Some of these layers may be opaque colored with pigments.
  • the card for example, the format ID 1 according to ISO / IEC 7810.
  • the card may, for example, have a thickness of 800 ⁇ .
  • the card has the security feature made with the inventive method 200 on.
  • This security feature 200 is an alphanumeric string formed of a leading letter (A) and multiple digits (000000) in the illustrated embodiments.
  • This string may represent, for example, a personalization feature for the cardholder, for example, his identity number in the card issuing company. It can also be a serial number of the card itself.
  • the number is in each case formed by a structured film which is applied to the substrate 105 in the form of an application element 210 which has a front side 21 1 and a rear side 212 and is fixed there.
  • This film may for example be a transfer element / functional element in the form of an OVD (optically variable device) or an OVI element (optically variable ink).
  • a band-shaped carrier foil 213 (FIGS. 6, 7, 8) lined up. These are commercially available. Thus, it is not necessary to describe their structure in detail.
  • the patches are on the carrier foil fastened by means of a release film, so that they adhere there, but can easily be removed by train.
  • the carrier film may be formed of polyester and the release film of a silicone polymer.
  • application element structures 215 are connected to the substrate 105 via adhesive structures 225 (adhesion promoter structures).
  • the adhesive 220 may be, for example, a cold adhesive, which adheres to the substrate surface 101 at room temperature and to which the application element structures are also adhesively bonded.
  • the adhesive can be cured, for example, by additional UV irradiation or by evaporation of a solvent.
  • the application element 210 is structured in the form of the alphanumeric string, ie it is located on the card surfaces only at the locations formed by the string. The areas forming this string are present through the adhesive in the form of the adhesion regions 230. In the adjacent free areas 240 there are neither the application element nor the adhesive.
  • the adhesive 220 in the form of the string forms structured adhesive structures 225 on the substrate surface 101.
  • the adhesive structures are located exclusively in the adhesion regions 230. Free regions 240 are located between the adhesion regions.
  • the adhesive structures may have been applied first to the substrate surface or first to the application element.
  • the application element 210 structured in the form of the string and connected to the substrate surface 101 by means of the adhesive 220 is additionally applied to a further security feature 300 'located on the substrate surface.
  • This further security feature extends over a rectangular field and may for example also be formed by a transfer element.
  • it may be a holographic film.
  • the application element may be, for example, a film coated with OVI ink.
  • the string-structured application member 210 connected to the substrate surface 101 by adhesive 220 is partially applied to the cardholder passport photo 300 printed on the substrate surface and partially directly to the substrate surface.
  • Individual adhesive structures 225 and application element structures 215 extend from the substrate surface 101 onto the passport photo. Due to the partial overlay of the passport photo of the cardholder with the character string, a forgery or falsification of the badge card, for example by exchanging the facial image, is made more difficult because it would also destroy the security feature 200 produced according to the invention. Also in this case, the adhesive structures may first have been applied to the substrate surface or first onto the application element.
  • FIG. 1 the fourth embodiment
  • the application element 210 structured in the form of the string is applied directly to the substrate surface via the adhesive structures 225, as in FIG.
  • the application element structures 215 can also be seen in isolation in this case.
  • a protective lacquer layer 250 has additionally been applied to the card surface.
  • Both the adhesive under the application element structures and the protective lacquer are colorless and transparent.
  • the protective varnish has the same refractive index as the adhesive.
  • the same material is used for the adhesive and the resist.
  • the adhesive and the protective lacquer therefore surround the application element structures of the security feature 200 on all sides. When considering the security feature according to the invention, therefore, the formed structures of the alphanumeric string seem to float in the paint matrix formed by the adhesive and the protective lacquer.
  • the individual adhesive structures 225 are indicated by a dashed line in FIG. 4B. Due to the lack of existing interfaces between the adhesive structures and the lacquer layer, however, these are no longer recognizable. Also in this case, the adhesive structures may have been applied first to the substrate surface or first to the application element.
  • the application element 210 structured in the form of the string and connected to the substrate surface 101 by means of the adhesive 220, is applied to a layer 280 printed on the substrate surface and forming a luminescent substance. which does not absorb in the visible spectral range and is therefore colorless, but which emits light when excited with UV radiation in the visible spectral range.
  • the former is individualized.
  • the alphanumeric string appears as a dark structure in the luminous field of layer 280 upon excitation of the luminescent layer with UV radiation.
  • the adhesive structures may first be applied to the luminescent layer or first to the application element.
  • FIG. 1 A first variant of the manufacturing method according to the invention for the security feature 200 is shown schematically in FIG.
  • the illustration shows the method in the individual steps on the basis of a progressing in the transport direction T band of the substrate 105, which is conveyed from left to right.
  • a substrate tape for example a substrate sheet.
  • On the substrate application elements are applied, which are provided in the form of a tape.
  • This band is formed by a carrier tape 213 and functional elements 210 applied thereto.
  • the carrier tape is not shown separately.
  • the substrate 105 for example a polycarbonate film
  • the printing unit in the present case is an inkjet printer, of which only a single print head is shown.
  • the printer applies adhesive material 220 (adhesion promoter) in a structured arrangement in the form of adhesive structures 225 to the substrate surface 101, so that the adhesive distribution on the substrate surface corresponds to the desired pattern.
  • the adhesive is printed in the form of the alphanumeric string in the upper right corner of the substrate. Since the printer is controllable for individual pattern generation, the string may differ on successive substrates, for example, A000000, A123456, A543987, etc. Thus, individual character strings associated with the cardholders may be generated.
  • the substrate 105 After passing through the printing unit 400, the substrate 105 is fed to a laminating unit 500 in which it initially passes a gap between a pressure roller 510 and a first counterpressure roller 51 1. At this point, the substrate is brought into contact with individual application elements 210, which are supported by a carrier foil 213 (not shown). These elements are in the adhesion regions 230 with the adhesive structures 225 brought on the substrate surface 101 in contact and connected by the pressure generated by means of the pressure roller 510 and the first counter-pressure roller 51 1 contact pressure with these.
  • an IR emitter 520 By supplying heat into the composite of substrate 105, adhesive structures 225 and application elements 210, an IR emitter 520 generates a temperature increase, so that the adhesive hardens. Thus, a firm connection of the adhesive is made on the one hand with the substrate surface 101 and the other with the application elements.
  • the composite of substrate 105, carrier foil 213 and the application elements 210 After passing through the IR radiator 520, the composite of substrate 105, carrier foil 213 and the application elements 210 also passes through a gap between a take-off roll 530 and a second counter-pressure roll 531. At these rollers, the carrier film (and optionally a release film) with the adhering residues 210 'of the application element, which were located in the free areas 240 between the adhesive structures 225 and therefore are not connected to the adhesive 220, detached from the substrate and detached therefrom (FIG. 8). On the substrate surface 101 remain the application element structures 215, which are firmly connected to the substrate surface in the adhesion regions 230 in which the adhesive structures 225 are located on the substrate surface 101.
  • the structured and individualized security feature 200 remains on the substrate surface 101. This is now structured by the character string associated with the cardholder.
  • this is subsequently coated with the protective lacquer 250.
  • This can for example be formed by the same material as the adhesive 220. This process step is not shown.
  • the method for producing the security feature 200 according to the invention on a substrate 105 in a second variant of the method is shown schematically in FIG. 7.
  • the adhesive structures 225 are not formed on the substrate surface 101 but on the rear side 212 of the application elements 210. These are then guided into the gap between the pressure roller 510 and the first counter-pressure roller 51 1, where the adhesive structures come into contact with the substrate surface. Thereafter, the application elements are mixed with the substrate as in the first process variant. tied, and the non-connected parts of the application elements are withdrawn from the substrate again.

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  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
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  • Credit Cards Or The Like (AREA)

Abstract

L'invention concerne un procédé permettant de créer une caractéristique de sécurité (200), en particulier personnalisable, pour un produit de valeur et/ou de sécurité (100). Ledit procédé comprend les étapes suivantes : (a) la préparation d'un substrat (105) comportant des surfaces (101) ; (b) la préparation d'au moins un élément d'application (210) comportant une face avant (211) et une face arrière (212) ; (c) la production respectivement d'une couche d'un agent adhésif (220) sur au moins une des surfaces (101) du substrat (105) ou sur la face arrière de l'élément d'application (210), de sorte que l'agent adhésif (220) est présent exclusivement dans au moins une zone d'adhérence (230) délimitée par une ou plusieurs zones dégagées (240) sur la ou les surfaces (101) du substrat (105) ou sur la face arrière (212) de l'élément d'application (210), mais n'est pas présent dans la ou les zones dégagées (240) ; (d) la pose de chaque élément d'application (210) par sa face arrière (212) sur la ou les surfaces (101) du substrat (105) munies respectivement de la couche d'agent adhésif (220) ou la pose de l'élément d'application (210) par sa face arrière (212) présentant l'agent adhésif (220) sur une des surfaces (101) du substrat (105) ; (e) l'assemblage de chaque élément d'application (210) dans les zones d'adhérence (230) à la ou aux surfaces (101) du substrat 105, chaque élément d'application 210 n'étant pas assemblé à la ou aux surfaces (101) du substrat (105) dans les zones dégagées (24 ; (f) l'enlèvement mécanique des parties de l'élément d'application (210) non assemblées à la ou aux surfaces (101) du substrat (105). La ou les couches de l'agent adhésif (220) sont produites à l'étape (b) du procédé par un procédé d'impression numérique.
PCT/EP2013/073610 2012-11-15 2013-11-12 Procédé permettant de produire une caractéristique de sécurité pour un produit de valeur et/ou de sécurité, et produit de valeur et/ou de sécurité WO2014076074A1 (fr)

Priority Applications (1)

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EP13789332.7A EP2919997B1 (fr) 2012-11-15 2013-11-12 Procédé permettant de produire une caractéristique de sécurité pour un produit de valeur et/ou de sécurité, et produit de valeur et/ou de sécurité

Applications Claiming Priority (2)

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DE102012220903.4A DE102012220903B4 (de) 2012-11-15 2012-11-15 Verfahren zum Erzeugen eines Sicherheitsmerkmals für ein Wert- und/oder Sicherheitsprodukt und Wert- und/oder Sicherheitsprodukt (Inkjetdrucken)
DE102012220903.4 2012-11-15

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WO2014076074A1 true WO2014076074A1 (fr) 2014-05-22

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EP3009272A3 (fr) * 2014-10-16 2016-07-06 Schreiner Group GmbH & Co. KG Produit d'impression présentant une caractéristique de sécurité optique
WO2017076872A3 (fr) * 2015-11-03 2017-06-29 Leonhard Kurz Stiftung & Co. Kg Procédé et dispositif d'application permettant d'appliquer une couche de transfert d'un film sur un substrat
EP3414104B1 (fr) 2016-02-10 2020-11-18 Oberthur Fiduciaire SAS Procédé de fabrication de documents de sécurité et documents correspondants
US20220258520A1 (en) * 2019-07-15 2022-08-18 Jt International S.A. High-Gloss Silver Watermark
US11679619B2 (en) 2017-08-18 2023-06-20 Leonhard Kurz Stiftung & Co. Kg Transfer film, method for producing a film-coated article and film-coated article

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DE102014204342B4 (de) 2014-03-10 2024-04-25 Atlantic Zeiser Gmbh Verfahren zum Personalisieren eines flächigen Informationsträgers und ein Informationsträger
JP6565385B2 (ja) * 2015-07-01 2019-08-28 大日本印刷株式会社 ホログラム記録媒体
DE102016009318A1 (de) * 2016-08-02 2018-02-08 Giesecke+Devrient Currency Technology Gmbh Verfahren und Transferfolie zum Übertragen von motivförmigen Sicherheitselementen auf ein Zielsubstrat

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Cited By (8)

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EP3009272A3 (fr) * 2014-10-16 2016-07-06 Schreiner Group GmbH & Co. KG Produit d'impression présentant une caractéristique de sécurité optique
WO2017076872A3 (fr) * 2015-11-03 2017-06-29 Leonhard Kurz Stiftung & Co. Kg Procédé et dispositif d'application permettant d'appliquer une couche de transfert d'un film sur un substrat
CN108472980A (zh) * 2015-11-03 2018-08-31 雷恩哈德库兹基金两合公司 用于将薄膜的转印层施加到基质上的方法和施加设备
CN111016316A (zh) * 2015-11-03 2020-04-17 雷恩哈德库兹基金两合公司 用于将薄膜的转印层施加到基质上的方法和施加设备
US10814667B2 (en) 2015-11-03 2020-10-27 Leonhard Kurz Stiftung & Co. Kg Method and application device for applying a transfer layer of a film to a substrate
EP3414104B1 (fr) 2016-02-10 2020-11-18 Oberthur Fiduciaire SAS Procédé de fabrication de documents de sécurité et documents correspondants
US11679619B2 (en) 2017-08-18 2023-06-20 Leonhard Kurz Stiftung & Co. Kg Transfer film, method for producing a film-coated article and film-coated article
US20220258520A1 (en) * 2019-07-15 2022-08-18 Jt International S.A. High-Gloss Silver Watermark

Also Published As

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DE102012220903B4 (de) 2023-06-07
DE102012220903A1 (de) 2014-05-28
EP2919997B1 (fr) 2019-05-29
EP2919997A1 (fr) 2015-09-23

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