EP2857218A2 - Procédé de création d'une caractéristique de sécurité avec des structures tactiles pour documents de valeur - Google Patents

Procédé de création d'une caractéristique de sécurité avec des structures tactiles pour documents de valeur Download PDF

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Publication number
EP2857218A2
EP2857218A2 EP20140003231 EP14003231A EP2857218A2 EP 2857218 A2 EP2857218 A2 EP 2857218A2 EP 20140003231 EP20140003231 EP 20140003231 EP 14003231 A EP14003231 A EP 14003231A EP 2857218 A2 EP2857218 A2 EP 2857218A2
Authority
EP
European Patent Office
Prior art keywords
tactile
structures
substrate
paint
color
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP20140003231
Other languages
German (de)
English (en)
Other versions
EP2857218A3 (fr
EP2857218B1 (fr
Inventor
Peter Schiffmann
Martin Imhof
Marcus Satzger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Giesecke and Devrient Currency Technology GmbH
Original Assignee
Giesecke and Devrient GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Giesecke and Devrient GmbH filed Critical Giesecke and Devrient GmbH
Publication of EP2857218A2 publication Critical patent/EP2857218A2/fr
Publication of EP2857218A3 publication Critical patent/EP2857218A3/fr
Application granted granted Critical
Publication of EP2857218B1 publication Critical patent/EP2857218B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B41M3/14—Security printing
    • 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
    • B42D25/324—Reliefs
    • 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
    • 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
    • B42D25/369—Magnetised or magnetisable materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40—Manufacture
    • B42D25/405—Marking
    • B42D25/415—Marking using chemicals
    • B42D25/42—Marking using chemicals by photographic processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40—Manufacture
    • B42D25/405—Marking
    • B42D25/425—Marking by deformation, e.g. embossing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40—Manufacture
    • B42D25/405—Marking
    • B42D25/43—Marking by removal of material
    • B42D25/435—Marking by removal of material using electromagnetic radiation, e.g. laser
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
    • B41M3/14—Security printing
    • B41M3/144—Security printing using fluorescent, luminescent or iridescent effects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
    • B41M3/14—Security printing
    • B41M3/146—Security printing using a non human-readable pattern which becomes visible on reproduction, e.g. a void mark
    • 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
    • B41M3/16—Braille printing

Definitions

  • the invention relates to a method for producing a security feature for value documents, in particular banknotes, identity cards and the like, wherein the security feature has at least one tactile detectable structure which is applied to a substrate of the value document.
  • the at least one tactile structure here consists of paint or varnish, wherein the color and / or the varnish is applied by means of a printing process to the substrate of the value document.
  • value documents such as banknotes, securities, credit or identity cards, passports, certificates and the like, labels, packaging or other elements for product protection are provided with security elements with tactile structures.
  • a data carrier in particular value document, such as banknote, identity card and the like, with a substrate known having at least one paper layer and which is covered on both sides in each case over the entire surface of a polymeric cover layer.
  • the substrate and the polymeric cover layer have substantially congruently arranged, tactile detectable embossed structures which are produced by the action of an embossing tool on the polymeric cover layer and the substrate and which have a relief height of 20 ⁇ m to 400 ⁇ m in total.
  • the tactile structure In order to ensure good haptic recognition for almost all groups of people, the tactile structure must have at least a certain height. Ideally, a tactile structure should have a height of more than 50 microns, preferably more than 80 microns and more preferably more than 120 microns have. This ensures that the perceived threshold for tactile detectable increases is exceeded and a user who sweeps his fingertip over the tactile structures can perceive this as an increase in relation to the surrounding substrate surface. A tactile structure can thus be perceived haptically independently of its optically perceptible appearance, so that the value document can also be unambiguously recognized by individuals with limited or reduced visual strength and checked for authenticity.
  • tactile structures are applied to a substrate by embossing, printing or transfer methods or by a combination of these methods. Furthermore, tactile structures can also be applied to a substrate by means of laser radiation, the laser radiation breaking the surface of the substrate or allowing the substrate to swell.
  • Embossing methods are also common methods for value documents in order to produce tactile structures.
  • the embossing is dependent not only on the shape of the embossing stamp on the quality of the substrate.
  • paper-based substrates can be partially deformed by an embossing process.
  • the embossing height is usually between 50 .mu.m and 80 .mu.m in the case of paper banknotes with an embossing stamp having an embossing depth of 120 .mu.m.
  • the impression height is only between 20 .mu.m and 50 .mu.m, ie only about half as high as with paper banknotes and below or at the perception threshold for tactile structures ,
  • embossing is generally carried out by means of the so-called intaglio printing method, in which an embossing stamp is pressed onto the substrate with high mechanical pressure.
  • intaglio printing In the case of banknotes, embossing is generally carried out by means of the so-called intaglio printing method, in which an embossing stamp is pressed onto the substrate with high mechanical pressure.
  • both the classical ink-conducting intaglio printing is used, in which the depressions of the embossing stamp are at least partially filled with a color, as well as the so-called blind embossing, in which the depressions of the embossing stamp are not filled.
  • the haptic experience is due to the elevation itself, but above all to the partially different micro-roughness of the surface of the elevations, which, however, is only slightly perceptible.
  • it is disadvantageous in all embossing methods that the embossing of the substrate during the lifetime or circulation of a
  • Tactile structures can also be generated without simultaneous substrate embossing with printing processes.
  • tactile structures such as Braille fonts, can also be produced by screen printing.
  • the tactile structures are usually built up in layers by printing individual color layers with a smaller thickness one over the other, so that the overall result is a thickness or height of 0.2 mm to 0.3 mm.
  • UV-drying inks or paints are used. These paints or varnishes usually contain no or only low concentrations of volatile components, such as e.g. Iso-propyl alcohol (IPA), a colorless, flammable liquid.
  • IPA Iso-propyl alcohol
  • the production of tactile structures by means of a transfer process, in which prefabricated the tactile structure on a support is transferred and then transferred to the substrate.
  • the transfer method requires a high cost, so that this method is not usually used for securities or banknote printing.
  • the invention is therefore the object of developing a generic security element such that the disadvantages of the prior art is eliminated and the protection against counterfeiting is further increased.
  • the at least one tactile structure is combined with an additional feature in the form of a tactile, acoustically or optically detectable security feature arranged on and / or under and / or around and / or in the tactile structure.
  • the substrate preferably comprises paper and / or a film, in particular a translucent or transparent film (for example in the window region of a banknote).
  • the substrate is completely made of either paper or plastic.
  • the substrate can also be made of different materials in some areas, and in particular in a range of paper and at the same time in another area made of plastic, preferably from a translucent film exist. This makes it possible to emboss different materials as a substrate in one operation.
  • Translucent film is here understood to mean either a transparent or a semitransparent film, for example a translucent film, which, for example, is Polyamide, polyester, polyethylene or biaxially oriented polypropylene (BOPP) contains.
  • a printing process for producing tactile structures is, for example, the "X-Dot" spray nozzle process developed by hss baumer. This printing process was specially developed for the production of Braille typefaces and is very similar to the inkjet process. However, the transferred amount of ink is greater by several powers of ten than with a conventional inkjet printer from the office sector. The transferred ink drop is not achieved as in a conventional inkjet printer via a piezoelectric element or a short-pulse thermal heating in the print head, but via a mechanical opening and closing of a closure. With this method, tactile structures with a height of up to 300 microns can be generated.
  • the screen printing method according to the invention is also known.
  • the ink is printed with a rubber squeegee through a fine mesh fabric onto the substrate.
  • Non-printing areas are previously rendered opaque in the screen by means of a coating by an exposure process.
  • the layer thickness of the printing ink applied to the substrate is determined essentially by the sieve thickness. The greater the thickness of the screen, the greater the height of the transferred layer thickness.
  • a tactile element can be produced on a substrate by means of toner or inkjet-based methods by a multiple coating.
  • the tactile element can first be formed on an intermediate carrier (eg photoconductor drum or rubber roller) before the transfer to the substrate takes place.
  • non-tactile structures with a height of less than 20 microns are considered in the context of this invention. Structures with a height of more than 50 ⁇ m are tactile detectable for most people. Structures with a height of more than 20 microns, but less than 50 microns are tactile detectable only for special and highly trained groups of people, for example, visually impaired or blind persons.
  • the color or lacquer layer according to the invention preferably consists of a grid-like arrangement of individual elements, these elements being produced in each case by a single drop or thread of paint and / or lacquer.
  • This has the particular advantage that the tactile elements can be produced with only a single printing process. It thus results in a time and cost savings or efficiency increase.
  • the at least one tactile structure is thus combined with an additional tactile, acoustically or optically detectable security feature which is arranged on and / or under and / or around and / or in the tactile structure or introduced into it.
  • an additional tactile, acoustically or optically detectable security feature which is arranged on and / or under and / or around and / or in the tactile structure or introduced into it.
  • tactile, acoustically or optically detectable security features can be applied or applied during the printing of the tactile structure in or on the tactile structure.
  • subsequent application or application is possible, for example, by the surface of the tactile structure is treated mechanically or by laser or the internal structure of the tactile structure is changed by external influences later.
  • the additional security feature consists of a variation of size, height and / or shape of the tactile structures.
  • different tactile structures differ in their size, height and / or shape.
  • the additional security feature consists of nested and / or stacked and / or next to each other printed tactile structures, wherein the respective structures may differ in their properties.
  • the tactile element consists of at least two different layers and / or tactile basic elements.
  • a haptic tactile tactile element may consist of at least two directly adjacent, non-spaced basic elements and / or individual layers. These primitives or single layers may differ in their additional security features.
  • two adjacent individual elements may have the same geometry, same Color and photochromic property, but differ in another property (eg, magnetism or IR transparency).
  • At least two slightly spaced-apart tactile basic elements can be arranged under an elastic lacquer which can be felt only as a tactile element under normal "finger pressure" and are perceived as two separate basic elements under high pressure.
  • the tactile structure has a partially modulated colored background printing.
  • the tactile structure has a partially modulated coating with a paint or a lacquer.
  • the additional security feature consists of a matt / gloss effect of the surface of the tactile structure.
  • tactile structures differ with regard to their gloss values, so that additional information about different gloss values of the tactile structures results.
  • the detection can be done both with the eye when viewed in the glancing angle and by means of a suitable machine sensor.
  • the additional security feature consists of a microroughness of the surface.
  • the partially different frictional resistance between the locations of the substrate, which have no tactile structures, and the tactile structures detected by a user with the fingertip are different in micro-roughness.
  • the microroughness can be influenced by suitable fillers, the binder system for the paint or varnish and / or the drying process.
  • the additional security feature consists of a stickiness of the surface.
  • the tackiness of the surface is adjusted or changed by selection of suitable additives, such as waxes, or binders of the paint or varnish used and / or by addition of anti-slip agents.
  • the additional security feature consists of materials which can be oriented in the magnetic or electric field in a capsule.
  • substances are freely rotatably arranged in a capsule, which align themselves due to gravity or other magnetic or electric fields in the capsule.
  • These substances may, for example, have luminescent, magnetic or only in certain wavelength ranges of the electromagnetic radiation recognizable properties.
  • the additional security feature consists of materials or information which can not be recognized by the naked eye and only by means of magnifying glass, such as micro-writing hologram pigments, tinsel pigments or micro-taggants.
  • Micro-Taggants here are differently colored multi-layered particles.
  • the additional security feature consists of structuring or marking the surface of the tactile structure by means of a laser.
  • the laser marking can be resolved much finer than the resolution of the tactile structures.
  • the laser structuring can take place via a plurality of tactile structures and also outside or between the tactile structures. The structuring of the surface or of the environment of the tactile structure can take place here for example by ablation / removal, severing, foaming, carbonization or sublimation.
  • the tactile structure forms a tactile detectable information in Braille, which describes the value, the currency, the country and / or the issue date of a banknote, wherein this information can be read out by means of a sensor of a banknote processing machine via the additional security feature.
  • a machine readable feature e.g., magnetic, IRA color
  • the tactile element with additional feature described in the invention provides an advantage for both normal-sighted users and for visually impaired or visually impaired users.
  • persons with poor eyesight or visual impairment benefit from the better perceptibility of the tactile elements in circulation.
  • People without visual impairment benefit from visually recognizable additional features, eg in the case of thermochromic additional features. Heat visually changes the color of the tactile element.
  • a particular advantage of the invention is that the at least one tactile structure is not generated via an embossing process or partial embossing process, but via a printing process.
  • the tactile structure can be applied to a substrate almost independently of its quality, material or surface finish, so that the tactile structure can also be printed on a substrate made of plastic or a mixture of paper and plastic layers, the so-called hybrid substrate.
  • a particular advantage of the invention is that the use of a printing process (screen printing or contactless by means of nozzles) results in the production of a tactile element without deformation or embossing of the substrate.
  • a further tactile element produced by embossing, lasering or intaglio printing is applied on or next to the security element.
  • this additional tactile element is applied to the substrate independently of the tactile element according to the invention, it can cooperate optically with it, for example by combining together to form a pattern or a graphic image.
  • the tactile structures differ from value document to value document. This can be done, for example, batch by batch for the individual value (10s, 20s, ...) or production series (old 50s vs. new 50s) or of use to benefit (serial number).
  • the screen printing process is no longer necessary since screen printing does not allow individualization.
  • the tactile elements consist of a hotmelt adhesive without or with a solvent, wherein in the latter case the drying is particularly preferably carried out by means of hot or cold air.
  • the tactile structures are shifted from utility to utility in the longitudinal and / or transverse direction of the utility.
  • the height of the tactile structures is preferably limited upwards and is preferably 60 ⁇ m to 200 ⁇ m and particularly preferably 80 ⁇ m to 140 ⁇ m.
  • a fine structure e.g., steel-stamped
  • paper / plastic is protected by an additionally printed tactile element or printed fulcrums to achieve a uniform stack height and / or prevent stacking.
  • the protection of the fine structure can be carried out in the same process or in another method (screen printing, spray nozzles). Of course, the reverse case also works.
  • a rigid tactile element is used to protect tactile softer printed tactile elements.
  • the tactile structure is applied within a cavity or depression in the substrate.
  • the substrate is in this case a region which is lowered relative to the surrounding surface of the substrate and into which the tactile elements are printed and remain tactile detectable.
  • processing problems such as one-sided stack increases in the area of the tactile structure, are preferably avoided.
  • the tactile structure is better protected by the surrounding, elevated surface of the substrate from abrasion or environmental influences.
  • the edge of the cavity or depression can be additionally increased in order to further increase the finding and the protection of the tactile element.
  • Fig. 1 shows a security element in side view, which consists of three tactile structures 2, which are printed on a substrate 1.
  • Fig. 2 shows in side view tactile structures 2, which are arranged on a first substrate 1, and tactile structures 4, which are arranged on a second substrate 3.
  • the tactile structures 4 are offset relative to the tactile structures 2 such that they do not overlap and when stacking the two substrates 1 and 3 one above the other lead to no height difference in the stack.
  • the tactile structures 4 it is according to Fig. 3 It is also possible for the tactile structures 4 to be arranged on the substrate 3 in such a way that they lie between the tactile structures 2 of the substrate 1. In each case, a tactile structure of the substrate 3 lies in a gap between two tactile structures of the substrate 1.
  • Fig. 4 shows that an excessive height of the tactile structures leads to the fact that the tactile structures 4 lead to an embossment in a subsequent substrate 1. This is caused by compressive forces due to the weight of overlying sheets in the stack or the winding tension in a substrate roll.
  • the following figures show exemplary embodiments of a combination of tactile structures with an additional tactile, acoustically or optically detectable security feature.
  • Fig. 5 shows in Fig. 5a in plan view, a security element, which consists of an array of nine tactile structures 5 and 6, which are applied by means of screen printing process and / or spray nozzle to the substrate 1.
  • the tactile structures 5 have an additional safety feature compared to the tactile structures 6, for example a different color, a surface with a different roughness or a coating with an optically variable color.
  • the structures 5 and 6 may also differ in their geometry.
  • the structure 5 may have a circular base and the structure 6 an elliptical base, as shown in FIG Fig. 5b in plan view and in Fig. 5c is shown in side view.
  • Fig. 6 shows in side view tactile structures 2, wherein a part of the tactile structures on a layer 7 and another part is arranged on a layer 8, wherein the optical properties of the layer 7 from those of the layer 8 differ.
  • the layers 7 and 8 are, for example, an imprint, a coating or an embossing of the substrate 1
  • layer 8 is guilloche printed while layer 7 is a holographic element.
  • Fig. 7 shows the security element Fig. 6 , wherein additionally the tactile structures 2 are provided with a coating 9.
  • This coating 9 is, for example, an imprint of a transparent interference color, which is predominantly visible in the area of the tactile structures.
  • a water-based paint is used, which is dried only by means of hot air and / or chemical post-crosslinking. Drying by means of hot air and / or chemical post-crosslinking is particularly advantageous here, since drying by means of infrared radiation in the case of water-based paints generally leads to problems with substrate distortion.
  • Fig. 8 shows two rigid tactile elements 11 arranged on a substrate 1 and 3 around two softer printed tactile elements 10 around.
  • the rigid elements 11 prevent mechanical pressure from being exerted on the softer elements 10.
  • the elements 10 in particular against mechanical wear and abrasion.
  • Fig. 9 shows in side view tactile structures 12 and 13, which are arranged on a substrate 1.
  • the tactile elements 12 and 13 are spaced apart so that they do not overlap and are spatially separated.
  • the elements 14 and 15 are arranged directly in contact with each other, without affecting the shape of the other element.
  • the structures 16 and 17 are arranged overlapping, so that the tactile property of the individual primitives is no longer individually detectable.
  • the structures 12 and 13, 14 and 15 as well as 16 and 17 can be made of different materials, but also of identical or identical materials.
  • Fig. 10 Figure 11 shows nested tactile elements 18 and 19, overprinted elements 18 and 20, and the combination of two different elements 21 and 22 with overprint 18.
  • the tactile structures 18 to 22 may each have none, one or more additional security features. For example, a different color, a surface with a different roughness or a coating with an optically variable color. Tactile detectable is therefore only one element, but visually or metrologically detectable are two or more elements.
  • Fig. 11 has a combination of tactile elements of different shape and geometry.
  • the rigid and incompressible structures 11 protect the lower tactile structures 10 and 23 from mechanical damage.
  • the structures 10 and 23 differ in addition to their shape and size in their function of the additional feature (eg photochromism, elasticity, ).
  • Fig. 12 shows the functioning of a sensing field whose tactile detectability is dependent on a mechanical pressure acting on the sensing field.
  • the user perceives only a single large element 24, as shown in the left-hand illustration.
  • two separate basic elements 25 and 26 are perceived, as shown in the right-hand illustration.
  • the elastic coating 24 used in this embodiment in the tactile Basic elements fills the basic elements in such a way that these tactile basic elements can be felt as separate individual elements only at high mechanical pressure.
EP14003231.9A 2013-09-24 2014-09-17 Procédé de création d'une caractéristique de sécurité avec des structures tactiles pour documents de valeur Not-in-force EP2857218B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201310015860 DE102013015860A1 (de) 2013-09-24 2013-09-24 Verfahren zur Herstellung eines Sicherheitsmerkmals mit taktilen Strukturen für Wertdokumente

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EP2857218A2 true EP2857218A2 (fr) 2015-04-08
EP2857218A3 EP2857218A3 (fr) 2015-06-03
EP2857218B1 EP2857218B1 (fr) 2017-11-22

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DE (1) DE102013015860A1 (fr)

Cited By (4)

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WO2017076489A1 (fr) * 2015-11-06 2017-05-11 Giesecke & Devrient Gmbh Carte de transaction à surface graphique d'impression 3d
WO2017197061A1 (fr) * 2016-05-11 2017-11-16 Neenah Paper, Inc. Document de sécurité ayant une durabilité de feuille améliorée
EP3293014A1 (fr) * 2016-09-07 2018-03-14 Giesecke+Devrient Mobile Security GmbH Support de données pourvu de revêtement haptique
GB2576650B (en) * 2017-05-17 2022-08-31 Ccl Secure Pty Ltd A security feature for a banknote

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Publication number Priority date Publication date Assignee Title
DE102021124407A1 (de) * 2021-09-21 2023-03-23 Leonhard Kurz Stiftung & Co. Kg Thermochromes Sicherheitselement und Verfahren zur Herstellung eines thermochromen Sicherheitselements

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WO2003029019A1 (fr) 2001-09-24 2003-04-10 Giesecke & Devrient Gmbh Procede d'individualisation de documents securises et document securise correspondant
EP2599637A2 (fr) 2011-11-30 2013-06-05 Giesecke & Devrient GmbH Support de données avec caractéristique de sécurité tactile

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WO2017076489A1 (fr) * 2015-11-06 2017-05-11 Giesecke & Devrient Gmbh Carte de transaction à surface graphique d'impression 3d
US10776681B2 (en) 2015-11-06 2020-09-15 Giesecke+Devrient Mobile Security Gmbh Transaction card with 3D printing graphic surface
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EP2857218A3 (fr) 2015-06-03
EP2857218B1 (fr) 2017-11-22

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