EP1488935B1 - Procédé de fabrication d'un élément de sécurité - Google Patents

Procédé de fabrication d'un élément de sécurité Download PDF

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Publication number
EP1488935B1
EP1488935B1 EP04013942.0A EP04013942A EP1488935B1 EP 1488935 B1 EP1488935 B1 EP 1488935B1 EP 04013942 A EP04013942 A EP 04013942A EP 1488935 B1 EP1488935 B1 EP 1488935B1
Authority
EP
European Patent Office
Prior art keywords
process according
magnetic
film material
layer
layers
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.)
Not-in-force
Application number
EP04013942.0A
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German (de)
English (en)
Other versions
EP1488935A2 (fr
EP1488935A3 (fr
Inventor
Matthias Müller
Peter Reich
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.)
Hueck Folien GmbH
Original Assignee
Hueck Folien GmbH
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Filing date
Publication date
Application filed by Hueck Folien GmbH filed Critical Hueck Folien GmbH
Publication of EP1488935A2 publication Critical patent/EP1488935A2/fr
Publication of EP1488935A3 publication Critical patent/EP1488935A3/fr
Application granted granted Critical
Publication of EP1488935B1 publication Critical patent/EP1488935B1/fr
Anticipated expiration legal-status Critical
Not-in-force legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • B42D25/29—Securities; Bank notes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/355—Security threads

Definitions

  • the invention relates to a method for the production of a film material for data carriers, documents of value and packaging, which has a spatially resolved magnetic coding.
  • a security document comprising a security element in the form of a thread or ribbon of transparent plastic material comprising a metallic layer with recesses in the shape of characters or patterns is provided, above or below this metal layer being arranged another magnetic layer such that at least the readable recesses remain free.
  • the object of the present invention was to provide a method for the production of a film material with magnetic coding, in which a defined magnetic coding can be detected spatially resolved.
  • the invention therefore relates to a method for producing a film material with magnetic coding, comprising a flexible carrier substrate, wherein a magnetpigment Vietnamese or a metallic magnetic ink is printed by means of a laser-coated cylinder or a printing plate on the carrier substrate such that the magnetic code simultaneously with recesses in shape of patterns, characters, letters, geometric figures, lines and guilloches by thickness modulation of the magnetic layer is generated, characterized in that the magnetic pigment-containing or a metallic magnetic ink is printed by means of a laser-coated cylinder or a printing plate with surface and depth-variable structures.
  • a security feature can be produced in a simple manner in the desired appearance and with the desired defined magnetic spatially resolved coding according to the invention.
  • carrier foils are preferably flexible plastic foils, for example of PI, PP, MOPP, PE, PPS, PEEK, PEK, PEI, PSU, PAEK, LCP, PEN, PBT, PET, PA, PC, COC, POM, as carrier substrate for a security feature.
  • ABS PVC in question.
  • the carrier films preferably have a thickness of 5 to 700 .mu.m, preferably 5 to 200 .mu.m, particularly preferably 5 to 50 .mu.m.
  • metal foils for example Al, Cu, Sn, Ni, Fe or stainless steel foils having a thickness of 5-200 ⁇ m, preferably 10 to 80 ⁇ m, particularly preferably 20-50 ⁇ m, may also serve as the carrier substrate.
  • the films can also be surface-treated, coated or laminated, for example, with plastics or painted.
  • carrier substrates also paper or composites with paper, for example, composites with plastics with a grammage 20-500 g / m 2, preferably 40-200 g / m 2. be used.
  • woven or nonwovens such as continuous fiber webs and staple fiber webs, which may optionally be needled or calendered, may be used as the carrier substrates.
  • fabrics or webs of plastics such as PP, PET, PA and PPS, but it can also be woven or nonwovens made of natural, optionally treated fibers, such as viscose fiber webs are used.
  • the fabrics or nonwovens used have a basis weight of about 20 g / m 2 up to 500 g / m 2 .
  • these fabrics or nonwovens may be surface treated.
  • the carrier substrate is printed with a paint or a paint having magnetic properties.
  • Magnetic colors capable of inducing high flux density magnetic fields or conducting high density magnetic fields are suitable for producing coded magnetic features in situ.
  • the measurable gradient of the magnetic flux is generated by thickness modulation of the magnetic layers.
  • Magnetic pigment paints with pigments based on Fe oxides, such as Fe 2 O 3 or Fe 3 O 4 , iron, nickel, cobalt and their alloys, cobalt / samarium, barium or cobalt ferrite, hard and soft magnetic iron. and steel grades in aqueous or solvent-containing dispersions.
  • Suitable solvents are, for example, i-propanol, ethyl acetate, methyl ethyl ketone, methoxypropanol, aliphatics or aromatics and mixtures thereof.
  • the pigments are incorporated in acrylate polymer dispersions having a molecular weight of from 150,000 to 300,000, in acrylate-urethane dispersions, acrylate-styrene or PVC-containing dispersions or in solvent-containing dispersions of this type.
  • Magnetic paints with pigments based on Cr / Ni steel, Al / Fe 3 O 4 and the like are particularly suitable. These magnetic colors, in contrast to the conventional magnetic colors, which appear black, brown or gray, have a silvery appearance and at the same time have the required magnetic properties described above. This makes it possible to produce the desired or required for many applications shiny metallic appearance in one operation already by printing these magnetic colors. Overprinting or coating with metallic or metal layers to produce the desired appearance is therefore not necessary, but can be done without problems, for example, to introduce further identification features.
  • the printing is preferably carried out by means of a laser-coated cylinder or a printing plate, preferably in the gravure printing method, wherein the printing tool (cylinder or printing plate) is designed so that the coded magnetic layer may be imaged simultaneously with the Signs, patterns, letters, geometric figures, lines and guilloches can be printed.
  • a cylinder blank suitable for gravure printing is provided with a copper layer at least 80 ⁇ m thick, for example in a known galvanic process, it being possible, depending on the material of the blank, for example aluminum and iron, to previously apply an adhesion promoter layer, for example of nickel.
  • the thickness of the copper layer is at least 80 .mu.m, usually 100-1500 .mu.m, preferably 250-500 .mu.m.
  • the cylinder blank is turned to the exact girth and then ground to the appropriate roughness.
  • the roughness value Ra is preferably 0.03-2.0, particularly preferably 0.05-1.5, in particular 0.06-1.2.
  • an engraving machine such as an engraving machine manufacturer Hell or Ohio on the side of a passport in a defined size, for example 5x5mm, thickness 0.2 mm.
  • the cylinder prepared in this way is coated with a commercially available photoresist, for example LD 100 from OHKA Kogyo Ltd.
  • the thickness of this coating is about 3 - 5 microns.
  • the cylinder is optionally provided with an overcoat with a layer thickness of 1-5 microns, for example with OC-40 of the above company or with an analogous commercially available composition.
  • the cylinder is exposed, for example with an Ar / Ne laser.
  • the reference point is determined on the laser with the aid of optics and a camera (CCD camera).
  • the parts required as a protective layer are exposed.
  • the laser beam has a tool width of 5 ⁇ m, which corresponds to a resolution of 40,000 points / mm 2 .
  • the exposed cylinder is developed, for example in a sodium carbonate solution (0.5% solution), this is usually followed by a cleaning process with water, after which the cylinder is dried
  • the exposed and developed cylinder is now etched to the first desired depth with a CuCl 2 solution, or the thickness of the copper layer on the surface is correspondingly reduced by means of a known galvanic process.
  • the first photoresist layer is removed, whereupon a new photoresist, as described above, is applied, a further exposure takes place and then the etching or the galvanic copper removal takes place to the desired second depth. In this way, different depths can be made on the cylinder or the printing tool.
  • the process described can be repeated until it is possible to encounter the primer layer.
  • first depth for example, depending on the desired structures and the desired magnetic coding 10-150 .mu.m, preferably 12-80 .mu.m, particularly preferably 50-60 .mu.m are conceivable for the second depth 10-150 .mu.m, preferably 12-80 .mu.m, more preferably 30-40 .mu.m conceivable.
  • the generation of the greatest depth or the lowest etching depth takes place in the first step.
  • ceramic cylinders or other metal cylinders with the surface and depth-variable surface according to the invention can also be produced analogously. Further, such structures can also be made using a stylus or raster as a modification of conventional techniques.
  • Such provided with a surface and depth variable surface pressure tool is used to produce the security feature of the invention.
  • the depth modulation results in signal modulation when printing a corresponding magnetic ink.
  • the magnetic ink is applied in different thickness and shape corresponding to the surface of the printing tool in one step on the carrier substrate.
  • the carrier substrate may already have functional or decorative layers, or further layers may be applied after the magnetically encoded layer has been applied.
  • the carrier substrates can also additionally have a lacquer or color layer, which can be unstructured or structured, for example embossed.
  • the lacquer layer can be, for example, a release-capable transfer lacquer layer, it can be crosslinked or crosslinkable by radiation, for example UV radiation, and scratch-resistant and / or antistatic be equipped.
  • Both aqueous and solid coating systems in particular lacquer systems based on polyester acrylate or epoxy acrylate rosin, acrylate, alkyd, melamine, PVA, PVC, isocyanate, urethane systems, conventional or reactive curing mixture or radiation-curing are suitable ) could be.
  • compositions in each case a wide variety of compositions can be used.
  • the composition of the individual layers may in particular vary according to their purpose, that is to say whether the individual layers serve exclusively for decorative purposes or should be a functional layer or whether the layer should be both a decoration layer and a functional layer.
  • These layers may be pigmented or unpigmented.
  • pigments it is possible to use all known pigments, such as, for example, titanium dioxide, zinc sulfide, kaolin, ITO, ATO, FTO, aluminum, chromium oxides and silicon oxides, and also colored pigments. In this case, solvent-based coating systems and systems without solvents can be used.
  • Suitable binders are various natural or synthetic binders.
  • optical properties of a further layer can be visualized by visible dyes or pigments, luminescent dyes or pigments which fluoresce or phosphoresce in the visible, in the UV region or in the IR region, effect pigments, such as liquid crystals, pearlescent, bronzes and / or Multilayer color change pigments and heat-sensitive colors or pigments influence. These are in all possible combinations used.
  • phosphorescent pigments can also be used alone or in combination with other dyes and / or pigments.
  • electrically conductive layers can also be present on the substrate, or subsequently applied, for example electrically conductive polymer layers or conductive paint or lacquer layers.
  • metal pigments for example, copper, aluminum, silver, gold, iron and chromium, metal alloys such as copper-zinc or copper-aluminum or amorphous or crystalline ceramic pigments such as ITO, ATO and FTO, and doped or non-doped semiconductors such as silicon, germanium or doped or non-doped polymeric semiconductors or ionic conductors such as amorphous or crystalline metal oxides or metal sulfides may also be used as additive.
  • polar or partially polar compounds such as surfactants, or nonpolar compounds such as silicone additives or hygroscopic or non-hygroscopic salts can be used or added to the paint for adjusting the electrical properties of the layer.
  • a full-surface or partial metal layer wherein the partial application can be effected by means of an etching process (application of a full-surface metal layer and subsequent partial removal by etching) or by means of a demetallization process.
  • a demetallization process preferably in a first step, a solvent-soluble color (optionally in the form of an inverse coding) is applied, then, optionally after activation of the carrier substrate by a plasma or Corona treatment, the metallic layer is applied, whereupon the soluble color layer is removed by treatment with a suitable solvent, including the metallization present in these areas.
  • an electrically conductive polymer layer can also be applied as the electrically conductive layer.
  • the electrically conductive polymers may be, for example, polyaniline or polyethylenedioxythiophene.
  • the magnetic ink used for example, carbon black or graphite, whereby a simultaneously magnetic and electrically lelable layer can be produced particularly advantageously in a defined coding by the method according to the invention.
  • additional surface relief structures for example diffraction gratings and holograms, may also be considered as additional security features, wherein these structures may optionally also be metallised or partially metallised.
  • UV-curable deep-drawable lacquer is applied for the time being. Subsequently, for example, a surface structure by molding a die in this paint, which is pre-cured at the time of molding to the gel point, prepared, whereupon the radiation-curable paint is completely cured after application of the surface structure.
  • UV-curable lacquer Due to the use of the UV-curable lacquer, layers which have been applied thereto after curing, and also an optionally introduced surface structure, are stable even under temperature load.
  • the radiation-curable lacquer can be, for example, a radiation-curable lacquer system based on a polyester, an epoxy or polyurethane system containing two or more different, known in the art photoinitiators that can initiate curing of the paint system to different degrees at different wavelengths.
  • one photoinitiator can be activated at a wavelength of 200 to 400 nm, the second photoinitiator then at a wavelength of 370 to 600 nm.
  • the region in which the second photoinitiator is excited should be in the transmission wavelength range of the carrier substrate used.
  • electron radiation can be used for the main curing (activation of the second photoinitiator) also electron radiation can be used.
  • a water-thinnable varnish can also be used. Preference is given to polyester-based paint systems.
  • the inventive security elements can be provided with a protective lacquer layer on one or both sides.
  • the protective lacquer may be pigmented or unpigmented, using as pigments all known pigments or dyes, for example TiO 2 , ZnS, kaolin, ATO, FTO, aluminum, chromium and silicon oxides or, for example, organic pigments such as pthalocyanine blue, i-indolid yellow and dioxazine violet can.
  • luminescent dyes or pigments which fluoresce or phosphoresce in the visible, in the UV range or in the IR range, effect pigments such as liquid crystals, pearlescent, bronzes and / or multilayer color change pigments and heat-sensitive inks or pigments can be added. These can be used in all possible combinations.
  • phosphorescent pigments can also be used alone or in combination with other dyes and / or pigments.
  • a security element may be provided with a hot or cold seal adhesive or a self-adhesive coating for application to the security document or a package to be protected.
  • the security elements if appropriate after appropriate assembly (for example, into threads, tapes, strips, patches or other formats), therefore, have security features in data carriers, in particular value documents such as identity cards, cards, banknotes or labels and seals, but also in packaging materials for sensitive goods, such as pharmaceuticals, food, cosmetics, data carriers and electronic components. Furthermore, the security elements can be applied to packaging materials for a wide variety of goods, such as films, paper, boxes and cartons.
  • a cylinder with a profile accordingly Fig. 1 produced.
  • a cylindrical blank of aluminum is applied to a 5 micron thick adhesive layer of nickel.
  • a 300 ⁇ m thick copper layer is electrodeposited.
  • the cylinder blank is turned to the exact extent and then ground to a roughness Ra of 0.09.
  • engraved on an engraving machine for example, a engraving machine of the type Hell or Ohio on the side of a passport (5 x 5 mm, thickness 0.2 mm).
  • the cylinder prepared in this way is coated with a 4 ⁇ m thick layer of the photoresist LD 100 from OHKA.
  • the cylinder is optionally provided with an overcoat with a layer thickness of 2 microns, (OC-40).
  • the exposure is carried out with an Ar / Ne laser with a tool width of 5 microns after fixing the reference point, whereupon the exposed cylinder is developed in a 0.5% sodium carbonate solution.
  • the exposed and developed cylinder is now etched to the first desired depth with a CuCl 2 solution, in which case the greatest depth is begun.
  • the depth of the etching is 150 ⁇ m.
  • the first photoresist layer is removed, whereupon a new photoresist is applied as described above, a further exposure takes place and then the etching is carried out to a depth of 80 ⁇ m.
  • an etch depth of 40 microns is selected after removal of the photoresist layer, application of a new photoresist layer, exposure, and development.
  • the coercive force was 90 Oerstedt, the flux density 200 - 600 nW / m, modulated
  • etching process can be started either with the greatest depth or the lowest depth.
  • the following etching depths were provided: 120 ⁇ m, 70 ⁇ m and 10 ⁇ m.
  • a magnetic pigment color with 20% Fe 2 O 3 pigments in nitrocellulose is applied to a polypropylene film having a thickness of 5 ⁇ m.
  • the coercive force was 250 Oerstedt, the flux density 100 - 400 nW / m, modulated.

Landscapes

  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Laminated Bodies (AREA)
  • Burglar Alarm Systems (AREA)
  • Hard Magnetic Materials (AREA)
  • Paints Or Removers (AREA)

Claims (11)

  1. Procédé servant à fabriquer un matériau de type film comprenant un codage magnétique, présentant un substrat de support flexible, sachant qu'une encre d'impression contenant des pigments métalliques ou une encre d'impression métallique magnétique est appliquée au moyen d'un cylindre à éclairage laser ou au moyen d'une plaque d'impression de telle manière sur le substrat de support que le code magnétique est dans le même temps généré avec des évidements sous la forme de motifs, de caractères, de lettres, de figures géométriques, de lignes et de guillochés par une modulation d'épaisseur de la couche magnétique, caractérisé en ce que l'encre d'impression contenant des pigments magnétiques ou une encre d'impression métallique magnétique est appliquée, au moyen d'un cylindre à éclairage laser ou au moyen d'une plaque d'impression, avec des structures à surfaces et à profondeurs variables.
  2. Procédé selon la revendication 1, caractérisé en ce qu'en supplément d'autres couches fonctionnelles et/ou décoratives sont appliquées sur le matériau de type film.
  3. Procédé selon l'une quelconque des revendications 1 à 2, caractérisé en ce qu'en supplément des couches électroconductrices et/ou à action optique et/ou à effet colorant sont appliquées sur le matériau de type film.
  4. Procédé selon l'une quelconque des revendications 2 à 3, caractérisé en ce que les couches sont appliquées sur toute la surface ou en partie sur le matériau de type film.
  5. Procédé selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le matériau de type film est pourvu, sur un côté ou sur les deux côtés, d'une couche de vernis de protection.
  6. Procédé selon la revendication 5, caractérisé en ce que la couche de vernis de protection est pigmentée.
  7. Procédé selon l'une quelconque des revendications 1 à 6, caractérisé en ce que le matériau de type film est contrecollé à un ou à plusieurs substrats de support, qui présentent éventuellement des couches fonctionnelles et/ou décoratives de support.
  8. Procédé selon la revendication 7, caractérisé en ce que la colle de contrecollage est pigmentée.
  9. Procédé selon l'une quelconque des revendications 1 à 8, caractérisé en ce que le matériau de type film est pourvu, d'un côté ou des deux côtés, d'une colle de scellement à chaud ou à froid ou d'un revêtement autocollant.
  10. Procédé selon la revendication 9, caractérisé en ce que la colle de scellement à chaud ou à froid ou le revêtement autocollant est appliqué(e) sur toute la surface ou en partie ou de manière structurée.
  11. Procédé selon la revendication 10, caractérisé en ce que la colle de scellement à chaud ou à froid ou le revêtement autocollant est pigmenté(e).
EP04013942.0A 2003-06-17 2004-06-15 Procédé de fabrication d'un élément de sécurité Not-in-force EP1488935B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT9352003 2003-06-17
AT9352003A AT500908A1 (de) 2003-06-17 2003-06-17 Sicherheitselement mit magnetischer codierung, verfahren und vorrichtung zu dessen herstellung und dessen verwendung

Publications (3)

Publication Number Publication Date
EP1488935A2 EP1488935A2 (fr) 2004-12-22
EP1488935A3 EP1488935A3 (fr) 2011-12-28
EP1488935B1 true EP1488935B1 (fr) 2016-06-08

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP04013942.0A Not-in-force EP1488935B1 (fr) 2003-06-17 2004-06-15 Procédé de fabrication d'un élément de sécurité

Country Status (2)

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EP (1) EP1488935B1 (fr)
AT (1) AT500908A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1500521A3 (fr) * 2003-07-22 2010-10-13 Hueck Folien Ges.m.b.H Element de sécurité avec des charactéristiques lisibles par machine et des effets colore
EP1693802A1 (fr) * 2005-02-22 2006-08-23 Hueck Folien GmbH & Co. KG Caractéristiques électroniques pour des documents de valeur
DE102005033598A1 (de) * 2005-07-19 2007-01-25 Giesecke & Devrient Gmbh Wertdokument, Herstellung und Prüfung von Wertdokumenten
DE102017202628B4 (de) 2017-02-17 2022-03-17 Trumpf Werkzeugmaschinen Gmbh + Co. Kg Verfahren zum Kodieren eines plattenartigen Werkstücks, Verfahren zum Identifizieren eines plattenartigen Werkstücks, Strahlungsbearbeitungsvorrichtung und Kodiersystem

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1222851B (it) * 1987-10-08 1990-09-12 Mantegazza A Arti Grafici Codice di identificazione rilevabile magneticamente per contrassegnare prodotti,documenti e simili
DE4041025C2 (de) * 1990-12-20 2003-04-17 Gao Ges Automation Org Magnetischer, metallischer Sicherheitsfaden mit Negativschrift
DE19548528A1 (de) * 1995-12-22 1997-06-26 Giesecke & Devrient Gmbh Sicherheitsdokument mit einem Sicherheitselement und Verfahren zu dessen Herstellung
EP1310907B1 (fr) * 1997-12-02 2005-04-20 Technical Graphics Security Products, LLC Dispositif de securité comportant de multiples éléments de securité
DE59909408D1 (de) * 1998-06-16 2004-06-09 Whd Elektron Prueftech Gmbh Merkmalsstoffe und sicherheitsmerkmale und verfahren zur integration dieser in die papierstoffbahn sowie verfahren zur prüfung
DE10131153A1 (de) * 2001-06-28 2003-01-16 Giesecke & Devrient Gmbh Sicherheitselement
DE10149463A1 (de) * 2001-10-08 2003-04-24 Giesecke & Devrient Gmbh Gedruckte, maschinenlesbare Codierung, Dokument mit einer solchen Codierung und Verfahren zur Herstellung der Codierung und des Dokumentes

Also Published As

Publication number Publication date
EP1488935A2 (fr) 2004-12-22
EP1488935A3 (fr) 2011-12-28
AT500908A1 (de) 2006-04-15

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