EP1488935A2 - Elément de sécurté à codage magnétique, procédé de fabrication et dispositif l'utilisant - Google Patents

Elément de sécurté à codage magnétique, procédé de fabrication et dispositif l'utilisant Download PDF

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Publication number
EP1488935A2
EP1488935A2 EP04013942A EP04013942A EP1488935A2 EP 1488935 A2 EP1488935 A2 EP 1488935A2 EP 04013942 A EP04013942 A EP 04013942A EP 04013942 A EP04013942 A EP 04013942A EP 1488935 A2 EP1488935 A2 EP 1488935A2
Authority
EP
European Patent Office
Prior art keywords
security
magnetic
security element
carrier substrate
film material
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
EP04013942A
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German (de)
English (en)
Other versions
EP1488935B1 (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
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 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
Expired - Lifetime 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 security element for data carriers, value documents, Packaging and the like, which is a magnetic produced in situ Coding has.
  • EP 0 516 790 B1 is a security document with a Security element in the form of a thread or band of transparent Plastic material known to have a metallic layer with recesses in Form of characters, patterns or the like, wherein above or below this metal layer is arranged another magnetic layer such that at least the readable recesses remain free.
  • EP 0 310 707 B1 is a document with magnetically detectable Security features known, the areas with variable magnetic field strength exhibit.
  • Magnetic features in particular magnetic features on security elements produced by printing inks having magnetic properties, are generally easily recognizable by the dark coloration and, if visual recognition is not desired, must be covered by further layers, for example metallic or metallic appearance layers. Furthermore, the magnetic layers described in the above-mentioned prior art to achieve the desired appearance and the desired properties (magnetic properties, covered, variable magnetic field strength) must be produced consuming in several steps.
  • Object of the present invention was a security element with provide magnetic encoding in which a defined magnetic Coding can be easily made and this magnetic Coding may not be visually recognizable as magnetic coding is.
  • the subject of the invention is therefore a security feature with magnetic Coding, characterized in that on a flexible carrier substrate the magnetic coding optionally simultaneously with optionally transparent recesses in the form of patterns, characters, letters, geometric figures, lines, guilloches and the like by printing in generated by both the individual defined code elements as Also by the different intensity of the magnetic field strength is readable.
  • Another object of the invention is a method for producing a Safety elements with magnetic coding, characterized in that a magnetic pigment-containing or a metallic magnetic printing ink printed by means of a laser-coated cylinder or a printing plate so is that the magnetic code optionally together with optionally transparent recesses in the form of patterns, characters, letters, geometric figures, lines, guilloches and the like is generated.
  • Another object of the invention is a printing plate or a Pressure cylinder usable for the production of security elements with defined magnetic coding, characterized in that the defined magnetic code by different heights and depressions on the Printing plate or the printing cylinder is reproduced and thereby different amounts of color to be printed or the paint in the Wells of the printing plate or the printing cylinder are performed.
  • Another object of the invention is a method for producing a Pressure plate or a printing cylinder with surface and depth variables Structures.
  • the security feature of the invention is in a simple manner in the desired appearance and with the desired defined magnetic coding can be produced.
  • carrier substrate for the security feature for example carrier foils, preferably flexible plastic foils, for example from PI, PP, MOPP, PE, PPS, PEEK, PEK, PEI, PSU, PAEK, LCP, PEN, PBT, PET, PA, PC, COC, POM, ABS, PVC in question.
  • the Carrier films preferably have a thickness of 5 - 700 ⁇ m, preferably 5 - 200 microns, more preferably 5 to 50 microns on.
  • metal foils for example Al, Cu, Sn, Ni, Fe or stainless steel foils with a thickness of 5-200 ⁇ m, preferably 10 to 80 microns, more preferably 20 to 50 microns serve.
  • 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, staple fiber webs and the like, which may be needled or calendered, may be used as the carrier substrates.
  • fabrics or webs of plastics such as PP, PET, PA, PPS and the like, but it can also be woven or nonwovens 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 to 500 g / m 2 .
  • these fabrics or nonwovens may be surface treated.
  • the carrier substrate is coated with a paint or a paint with magnetic Characteristics printed.
  • Magnetic inks that are capable of magnetic fields with high flux density or to conduct high-density magnetic fields.
  • the measurable Gradient of magnetic flux is due to thickness modulation of generated 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 easily, for example, to introduce additional 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 optionally simultaneously with the characters to be imaged, patterns, letters, geometric figures, lines, guilloches and the like can be printed.
  • a cylinder blank which is suitable for gravure printing, with at least one 80 micron thick copper layer, for example, in a known galvanic Provided method, depending on the material of the blank, for example Aluminum, iron, etc., if appropriate beforehand an adhesion promoter layer, for example, can be applied from nickel.
  • the thickness of the Copper layer is at least 80 ⁇ m, usually 100-1500 ⁇ m, preferably 250-500 ⁇ m.
  • the cylinder blank is turned off to the exact extent and then ground to the appropriate roughness.
  • the Roughness value Ra 0.03-2.0 particularly preferably 0.05-1.5, in particular 0.06 -1.2.
  • an engraving machine for example a Engraving machine manufacturer Hell or Ohio on the side of a passport in defined size, for example 5x5mm, engraved 0.2 mm thick.
  • the cylinder thus prepared is treated with a commercially available photoresist, for example, LD 100 from OHKA Kogyo Ltd., coated.
  • the thickness of this Coating is about 3 - 5 microns.
  • the cylinder is optionally with an overcoat with a Layer thickness of 1 - 5 microns provided, for example, with OC-40 of the above mentioned company or with a similar similar commercial 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, whereupon the cylinder is dried.
  • the exposed and developed cylinder is now brought to the first desired depth with a CuCl 2 Etched solution, or it is reduced by means of a known galvanic process, the thickness of the copper layer on the surface accordingly.
  • 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.
  • 10-150 ⁇ m, preferably 12-80 ⁇ m, particularly preferably 50-60 ⁇ m, are conceivable as the first depth, for the second depth 10-150 ⁇ m, preferably 12-80 ⁇ m. particularly preferably 30-40 microns conceivable.
  • the second depth 10-150 ⁇ m, preferably 12-80 ⁇ m. particularly preferably 30-40 microns conceivable.
  • either 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. Furthermore, 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 invention Security feature used.
  • the depth modulation is at Printing a corresponding magnetic ink a Signal modulation achieved.
  • the magnetic ink in different thickness and shape corresponding to the surface of the printing tool in one step the carrier substrate applied.
  • the carrier substrate may already have functional or decorative layers or, after applying the magnetically coded layer additional layers are applied.
  • the carrier substrates can also already a paint or Have color layer, the unstructured or structured, for example can be shaped.
  • the lacquer layer for example, a releasable Transfer lacquer layer, it can by radiation, such as UV radiation be crosslinked or crosslinkable and scratch resistant and / or antistatic be equipped.
  • Both aqueous and solid coating systems are suitable, in particular, paint systems based on polyester acrylate or epoxy acrylate Rosin, acrylate, alkyd, melamine, PVA, PVC, isocyanate, Urethane systems that conventional or reactive curing mixture or radiation-curing).
  • color or lacquer layers can each have a variety of Compositions are used.
  • the composition of the individual Layers can vary in particular according to their task, so whether the individual layers serve only decoration purposes or one functional layer or whether the layer is both a Dekorationsals should also be a functional layer.
  • pigments can all known pigments, such as titanium dioxide, zinc sulfide, Kaolin, ITO, ATO, FTO, aluminum, chromium and silicon oxides as well as colored ones Pigments are used.
  • solvent-based paint systems are as also system without solvent usable.
  • the binders are various natural or synthetic binders in question.
  • optical properties of another layer can be visualized by Dyes or pigments, luminescent dyes or pigments, which in visible, in the UV range or in the IR range fluoresce or phosphorescent, 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 be used alone or used in combination with other dyes and / or pigments become.
  • electrically conductive layers can also be present on the substrate be, or subsequently applied, for example, electrically conductive polymeric layers or conductive paint or varnish layers.
  • the applied Color or the applied paint such as graphite, carbon black, conductive organic or inorganic polymers, metal pigments (for example Copper, aluminum, silver, gold, iron, chromium and the like), Metal alloys such as copper-zinc or copper-aluminum or amorphous or crystalline ceramic pigments such as ITO, ATO, FTO and the like be added.
  • doped or non-doped semiconductors can also be used such as silicon, germanium or doped or undoped polymeric semiconductors or ionic conductors such as amorphous or crystalline metal oxides or metal sulfides are used as an additive.
  • the electrical properties of the layer polar or partially polar Compounds such as surfactants, or nonpolar compounds such as silicone additives or hygroscopic or non-hygroscopic salts used or the Lacquer can be added.
  • 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 ink (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 ink layer is removed by treatment with a suitable solvent including the existing metallization in these areas.
  • an electrically conductive layer may also be used as the electrically conductive layer Polymer layer are applied.
  • the electrically conductive polymers may be, for example, polyaniline or polyethylenedioxythiophene.
  • the magnetic ink used such as carbon black or Add graphite, creating a simultaneously magnetic as well as electric conductive layer in a defined coding according to the invention Method is particularly advantageous to produce.
  • UV-curable varnish By using the UV-curable varnish are after curing layers applied thereon, including an optionally introduced layer Surface structure, also stable under temperature load.
  • the radiation-curable lacquer may for example be a radiation-curable Paint system based on a polyester, an epoxy or polyurethane system 2 or more different, known in the art photoinitiators contains, at different wavelengths, a curing of the paint system to initiate to varying degrees.
  • a Activatable photoinitiator at a wavelength of 200 to 400 nm the second photoinitiator then at a wavelength of 370 to 600 nm.
  • the activation wavelengths of the two photoinitiators should be sufficient Difference be complied with, so not too strong suggestion of the second Photointiators takes place while the first is activated.
  • the area where the second photoinitiator is excited, should be in the transmission wavelength range of the carrier substrate used.
  • electron radiation can also be used.
  • a radiation-curable varnish As a radiation-curable varnish, a water-thinnable varnish can also be used be used. Preference is given to polyester-based paint systems.
  • 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, dioxazine violet and the like can be used.
  • 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.
  • the security element according to the invention with a hot or Cold seal adhesive or a self-adhesive coating for application to the be provided protective document of value or packaging.
  • the security element with a further carrier substrate, which optionally has further functional layers to laminate.
  • the security elements according to the invention are optionally after appropriate assembly (for example, to threads, ribbons, strips, Patches or other formats) therefore as security features in Data carriers, in particular documents of value such as identity cards, cards, Banknotes or labels, seals and the like, but also in Packaging materials for sensitive goods, such as pharmaceuticals, food, Cosmetics, data carriers, electronic components and the like used.
  • Packaging materials for sensitive goods such as pharmaceuticals, food, Cosmetics, data carriers, electronic components and the like used.
  • the security elements on packaging materials for a wide variety of goods for example on foils, paper, boxes, cartons and the like can be applied.
  • a cylinder with a profile corresponding to FIG. 1 is produced.
  • a cylinder blank of aluminum becomes a 5 ⁇ m thick adhesion promoter layer made of nickel. Subsequently, a 300 microns thick is galvanically Copper layer deposited.
  • the cylinder blank is turned off to the exact extent and then ground to a roughness Ra of 0.09.
  • the prepared cylinder is covered with a 4 ⁇ m thick layer of Photoresists LD 100 from OHKA, coated.
  • the cylinder is optionally with an overcoat with a Layer thickness of 2 microns provided, (OC-40).
  • Exposure is performed with an Ar / Ne laser with a tool width of 5 After fixing the reference point, whereupon the exposed cylinder in a 0.5% sodium carbonate solution is developed.
  • 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 ⁇ m is selected for the third etching process.
  • a gravure cylinder produced in this way becomes a magnetic ink consisting of 40% Cr / Ni steel pigments (3 ⁇ m) in an acrylate polymer dispersion applied to a polyester film of a thickness of 7 microns.
  • the coercive force was 90 Oerstedt, the flux density 200 - 600 nW / m, modulated
  • a cylinder with a profile corresponding to FIG. 2 is produced.
  • the cylinder is prepared analogously to Example 1 and again 3 different etching depths are provided.
  • the 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.

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  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Laminated Bodies (AREA)
  • Burglar Alarm Systems (AREA)
  • Hard Magnetic Materials (AREA)
  • Paints Or Removers (AREA)
EP04013942.0A 2003-06-17 2004-06-15 Procédé de fabrication d'un élément de sécurité Expired - Lifetime 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 true EP1488935A2 (fr) 2004-12-22
EP1488935A3 EP1488935A3 (fr) 2011-12-28
EP1488935B1 EP1488935B1 (fr) 2016-06-08

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EP04013942.0A Expired - Lifetime EP1488935B1 (fr) 2003-06-17 2004-06-15 Procédé de fabrication d'un élément de sécurité

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

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1693802A1 (fr) * 2005-02-22 2006-08-23 Hueck Folien GmbH & Co. KG Caractéristiques électroniques pour des documents de valeur
WO2007009756A1 (fr) * 2005-07-19 2007-01-25 Giesecke & Devrient Gmbh Document de valeur, realisation et controle de documents de valeur
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
US11370063B2 (en) 2017-02-17 2022-06-28 Trumpf Werkzeugmaschinen Gmbh + Co. Kg Encoding and identifying a plate-like workpiece

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0310707B1 (fr) 1987-10-08 1992-09-23 MANTEGAZZA ANTONIO ARTI GRAFICHE S.r.l. Document avec moyen antifraude détectable magnétiquement et ruban avec code d'identification détectable magnétiquement et code d'identification
EP0516790B1 (fr) 1990-12-20 1996-10-09 GAO Gesellschaft für Automation und Organisation mbH Fil de securite metallique magnetique avec une ecriture negative

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
KR100451812B1 (ko) * 1998-06-16 2004-10-08 베하데 엘렉트로니쉐 프뤼프테크닉 게엠베하 문서 , 유가 증권, 은행권, 포장 및 상품의 테스트를 위한 마킹 물질 및 안전 마킹
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0310707B1 (fr) 1987-10-08 1992-09-23 MANTEGAZZA ANTONIO ARTI GRAFICHE S.r.l. Document avec moyen antifraude détectable magnétiquement et ruban avec code d'identification détectable magnétiquement et code d'identification
EP0516790B1 (fr) 1990-12-20 1996-10-09 GAO Gesellschaft für Automation und Organisation mbH Fil de securite metallique magnetique avec une ecriture negative

Cited By (5)

* 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
WO2007009756A1 (fr) * 2005-07-19 2007-01-25 Giesecke & Devrient Gmbh Document de valeur, realisation et controle de documents de valeur
US8616584B2 (en) 2005-07-19 2013-12-31 Giesecke & Devrient Gmbh Value document, production and verification of value documents
US11370063B2 (en) 2017-02-17 2022-06-28 Trumpf Werkzeugmaschinen Gmbh + Co. Kg Encoding and identifying a plate-like workpiece

Also Published As

Publication number Publication date
AT500908A1 (de) 2006-04-15
EP1488935B1 (fr) 2016-06-08
EP1488935A3 (fr) 2011-12-28

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