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EP0810925B1 - Document infalsifiable pourvu d'un element de securite, et son procede de production - Google Patents

Document infalsifiable pourvu d'un element de securite, et son procede de production Download PDF

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Publication number
EP0810925B1
EP0810925B1 EP96944602A EP96944602A EP0810925B1 EP 0810925 B1 EP0810925 B1 EP 0810925B1 EP 96944602 A EP96944602 A EP 96944602A EP 96944602 A EP96944602 A EP 96944602A EP 0810925 B1 EP0810925 B1 EP 0810925B1
Authority
EP
European Patent Office
Prior art keywords
layer
magnetic
gaps
coding
magnetic layer
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.)
Expired - Lifetime
Application number
EP96944602A
Other languages
German (de)
English (en)
Other versions
EP0810925A1 (fr
Inventor
Gerhard Stenzel
Kaule Wittich
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 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 EP0810925A1 publication Critical patent/EP0810925A1/fr
Application granted granted Critical
Publication of EP0810925B1 publication Critical patent/EP0810925B1/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
    • B42D25/30—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
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/355—Security threads
    • B42D2033/16—
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y10T428/24893—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including particulate material
    • Y10T428/24909—Free metal or mineral containing

Definitions

  • the invention relates to a security document with a security element, which has at least a first layer with cutouts in the form of Has characters or patterns, and one below this first layer arranged magnetic layer.
  • the invention further relates to such Security element and method for producing this element and the Document.
  • the binary code known from EP 0 407 550 A1 stands out now characterized in that it consists of alternatingly arranged separating segments and word segments, the word section being composed of a certain number of bit lengths and the sequence of the binary values of the Separation segments within this word length must not occur by one to enable clear recognition of the word segments.
  • the security thread described here consists of a transparent plastic carrier layer with a metallic coating, in which recesses in the form of characters or patterns, the so-called Negative writing are provided. These recesses and the metallic one If the thread is present in the paper pulp, the surroundings are considered barely visible in incident light. When viewed in transmitted light, however the translucent cutouts stand out in stark contrast from their opaque surroundings and are therefore easily recognizable.
  • the security element has a magnetic coating which, for. B. can be arranged congruently below the metal layer, so that the There are congruent recesses in both layers.
  • a transparent plastic film with an activatable printing ink which contains foamable additives, for example, in the area of the later ones Cutouts printed.
  • the plastic film in successive work steps first with a first metal layer, a magnetic layer and a second metal layer.
  • the printing ink e.g. B. by exposure to heat, the layers in the area of the activatable printing ink are removed, so that the recesses are created.
  • the magnetic coating underneath the metal layer even only in the edge areas of the thread and along the running direction of the Elements are provided in the document, with the recesses in the Metal layer arranged in the magnetic layer-free intermediate areas become.
  • the transparent carrier film of the thread in the edge areas printed in the form of strips with magnetic material.
  • the activatable printing ink in Shape of the later recesses applied and then the carrier film fully coated with the metal layer.
  • the invention has for its object a security document with a To propose security element, in addition to a visual verifiability also allows a machine check and increased counterfeit protection offers.
  • the invention is now based on the knowledge that the extension of the negative sign is in the ⁇ m range, and therefore with an appropriate choice of Expansion of the magnetic areas and those influencing the magnetic flux Material parameters of the magnetic material the legibility of the coding is not affected by the overlaid negative signs.
  • the security document a security element with a translucent or transparent plastic layer on which a magnetic binary coding with a bit length of at least 2 to 4 mm and an opaque metal layer with negative signs are arranged, the metal layer over the coding is provided.
  • the magnetic layer also has cutouts in shape the sign on.
  • a metal layer e.g. B. made of aluminum or Metal paint can be arranged, which also the recesses of the negative sign having.
  • the magnetic material as well as the quantity parameters chosen so that the magnetic flux is about twice as high as Reading the coding on a continuous thread would be required.
  • the security element according to the invention is manufactured by Principle in two stages, firstly the generation of the magnetic coding and on the other hand the generation of negative writing.
  • the different options are independent of each other first to generate a magnetic coding as well as a visually recognizable one Negative writing explained.
  • a magnetic layer is preferred for anti-counterfeiting reasons on both sides with an essentially opaque protective layer is covered, capture the process variants described below in addition to the pure generation of the magnetic coding also the manufacturing possibilities magnetic coding with an underlying one Cover layer.
  • This is preferably a metallic one Layer by any method, such as vacuum metallization, printing metallic pigment-containing printing inks or the like can be generated can. But of course other layers, such as B. a white Color layer conceivable. Even layers of paint that are iridescent or liquid crystalline Contain pigments or other optically variable effect layers, such as Holograms can be used. Semi-transparent are also conceivable Layers such as B. a semi-transparent metal layer.
  • Manufacturing variant M1 (for generating a magnetic coding).
  • the inverse of the desired magnetic coding is placed on a carrier film printed with a color that can be activated as a separating layer. in the This is followed by the lower cover layer and the magnetic layer applied over the entire surface and evenly distributed. After that the interface activated, e.g. B. by treatment with an appropriate Solvent.
  • the solution process can possibly be carried out Surfactants, ultrasound or mechanical brushing are supported. This creates the separation layer as well as the layers above worn away.
  • the magnetic coding remains on the film.
  • a continuous lower cover layer is first placed on a carrier film applied. Then the inverse of the magnetic Coding printed with an activatable color as a separating layer. The magnetic layer is then distributed uniformly and applied all over. In the next step, the Interface activated, for example also by treatment with a suitable solvent. Maybe this process can supported by surfactants, ultrasound or mechanical brushing become. In this way, the layers in the area of Separation layer removed and the magnetic coding remains. The lower cover layer, however, is available over the entire surface.
  • the magnetic layer is in the desired coding on a carrier film printed directly or using a transfer process in the desired coding.
  • the carrier film can be optional have a cover layer.
  • Manufacturing variant M4 (for generating a magnetic coding).
  • the magnetic layer is applied over the entire surface. Subsequently, the pattern of coding with a well-adhering Color printed. In a further step, the magnetic layer in the unprinted areas, possibly supported by Ultrasound or mechanical brushing, detached. Optionally, you can then the protective and well-adhering layer of paint is removed become.
  • the magnetic layer On a carrier layer that is already covered with the lower cover layer the magnetic layer is applied over the entire surface.
  • this is the inverse of the magnetic coding with a caustic color, which e.g. B. an acid, solvent or complexing agent contains, printed. This will make the unwanted Parts of the magnetic layer detached and the magnetic Coding remains.
  • surfactants, ultrasound or mechanical brushing become.
  • the opaque or at least partially opaque layer which is the negative sign can, like the already mentioned first covering layer from a metal layer, an opaque printing ink, a printing ink with metallic pigments, a hologram or the like consist.
  • the expression "opaque Layer” also covers essentially opaque layers, such as a semi-transparent one Metal layer or printing inks with optically variable Pigments, such as interference layer pigments or liquid crystalline ones Pigments. For the generation of bright, visually recognizable Signs against an opaque background, there are basically the following Process options:
  • a translucent carrier film is made using a soluble paint Interface layer printed in the form of the later characters. This layer structure is then provided with the opaque layer. After that the separating layer is removed with a suitable solvent, which leads to detachment of the overlying layer.
  • a carrier film is at least by printing or vapor deposition printed or vapor-coated on an opaque layer. Then one well adhering, translucent printing ink in the form of the inverse of the later Cutouts are printed on the top cover layer and then the areas not covered by etching or dissolving away.
  • a carrier film is covered with an opaque printing ink, for example Metal pigments, white titanium dioxide pigments or optically variable Contains pigments, printed, leaving out the negative characters become.
  • an opaque printing ink for example Metal pigments, white titanium dioxide pigments or optically variable Contains pigments, printed, leaving out the negative characters become.
  • a carrier film is printed with at least one opaque layer or steamed. Then a caustic color, which for example contains an acid, solvent or complexing agent, in Shape of the later cutouts applied to the layer sequence, so that the underlying layers are removed down to the carrier film become.
  • a caustic color which for example contains an acid, solvent or complexing agent
  • a carrier film preferably in Endless form, both with the magnetic coding and with the one above Provide negative writing.
  • this carrier film is in Security elements with the desired shape, preferably in the form of Cut strips or ribbons.
  • this security element associated with the security document material.
  • the Element can be used, for example, as a security thread in the document material embedded or even over the entire surface of the document be attached.
  • the carrier film can also be used only as an intermediate carrier act, i.e. the layer structure consisting of negative writing and magnetic coding is transferred to the document using an adhesive or varnish and then peeled off the carrier film. In this case, the correct one The order in which the layers are created on the intermediate carrier is observed so that the magnetic coding on the document under the negative writing comes to rest.
  • FIG. 1 shows an inventive security document, here a bank note, in which a security element 2 in the form of a so-called window security thread is embedded.
  • the security thread during the paper manufacture quasi woven into the paper pulp, so that it is in regular What occurs directly to the document surface the hatched box is indicated.
  • the security element 2 does not have to necessarily in the form of a strip or tape.
  • other shapes such as B. a circular mark, be advantageous.
  • FIG. 2 shows the basic layer structure of the security element according to the invention 2. It consists of a carrier film 3, which is optional in the case the element may not be attached to the document surface. A first opaque cover layer 4 is located on this carrier film 3 Magnetic layer 5, a second cover layer 6 and optionally a transparent one Protective layer 7. The first opaque cover layer 4 and the magnetic layer 5 are only present in partial areas on the carrier film 3 and separated from one another by intermediate regions 8. The magnetic areas form any coding due to their arrangement.
  • the carrier film can be divided into segments of equal length A, with each segment being a binary Bit corresponds.
  • the assignment of this bit length A with magnetic material can be, for example, a "1" and the uncoated segment of same length A correspond to a "0".
  • Place in the illustration shown the intermediate areas 8 and the magnetic areas 5 are therefore integer multiples of length A.
  • One of the intermediate areas 8 has, for example one length A while the other has a length of 2A corresponding to the Has bit sequence "00". The same applies to the magnetic areas 5 shown.
  • the magnetic areas 5 and the lower cover layer 4 additionally have Recesses 9 in the form of characters, patterns, etc. These recesses 9 represent negative characters readable in transmission.
  • the extent B of these Character is in the ⁇ m range and therefore an order of magnitude below the minimum distance A between two magnetic areas 5, which is preferably between Is 2 to 4 mm.
  • the covering layer 6 arranged above the magnetic areas 5 extends over the entire security element 2 and only has the recesses 9 of the negative signs.
  • the cover layers 4, 6 can be made of any opaque materials exist, but they are preferably vapor-deposited Metal layers, such as B. aluminum layers or optically variable Layers such as holograms or printing inks with effect pigments (e.g. B. interference layer pigments, liquid crystalline pigments, metallic pigments).
  • the lower cover layer 4 also to be provided in the area of the magnetic layer-free code segments 8.
  • 3 to 18 illustrate the various manufacturing processes for a security element according to the invention. This is the different combinations of the methods described above to M1 M5 and V1 to V4.
  • Fig. 3 shows the different process steps, which in a combination the process variants M1 and V1 described above are necessary are to get to the security element according to the invention.
  • the carrier film 3 in step a) with a first separating layer, for. B. one water-soluble ink printed in the form of the visually recognizable negative signs.
  • this becomes partially overlapping water-soluble ink printed a gasoline-soluble ink, which the corresponds to the inverse pattern of the magnetic coding.
  • Step c) the lower cover layer 4 and the magnetic layer 5 over the entire surface and applied homogeneously to the printed carrier film 3. This can be done by easy coating with a coating color or vapor deposition.
  • step d) the color 11 with the appropriate solvent, e.g. As gasoline, solved, whereby the layers 4 and 5 above be washed out. In this way, the magnetic layer-free are created Coding segments 8. Since the ink 10 in the solvent of the Ink 11 is not soluble, these print areas remain unchanged.
  • step e) this layer structure with a Provide another full-surface opaque layer 6.
  • step f) are through Treatment with an appropriate solvent for the printing ink 10 the recesses 9 are generated in the form of negative signs. Finally, can the finished layer structure of the element in a last step g) with a additional protective layer 7 are covered.
  • step a shows the manufacturing variant according to a combination of the methods M2 and V1.
  • the carrier film 3 with the printing ink 10 is in shape the later negative characters printed (step a)) and then all over provided with the first cover layer 4 (step b)).
  • the activatable printing ink 11 in the form of the inverse magnetic coding upset.
  • the printing inks 10 and 11 are also here chosen so that they are soluble in different solvents.
  • this layer structure is provided with the magnetic layer 5 (Step d)) and then the ink 11 is activated so that the Magnetic layer-free coding segments 8 arise (step e)).
  • step f) the full surface coating with the second cover layer 6 and then the activation of the printing ink 10 (step g)) for generation the negative sign 9.
  • a protective layer 7 can be applied in step h) become.
  • step a the carrier film 3 is coated with a first Separating layer 10 printed and then with the first cover layer 4th fully coated (step b)). Finally, the magnetic layer 5 in Form of the desired magnetic coding printed or in the transfer process transferred, the intermediate regions 8 remain coating-free (Step c)). In step d) the coating with the second cover layer takes place 6. In the subsequent step e), the printing ink 10 is activated, so that the overlying layer sequence is removed and the readable Negative characters 9 remain (step e)). Finally, the item be coated with an additional protective layer 7 (step f)).
  • Step a) the carrier film 3 printed with a soluble printing ink 10 in the form of the later negative characters.
  • the first covering layer 4 is first applied over the entire surface the printed side of the carrier film provided (step b)) and also Magnetic layer 5 applied over the entire surface (step c)).
  • Step d) forms the magnetic layer with a well-adhering color 12 printed on the coding.
  • This layer 12 is against solvents of the magnetic layer 5 resistant, so that in the subsequent solution process e) only the unprinted areas are detached, making the magnetic layer free Coding segments 8 arise.
  • step f) Coating with the second cover layer 6.
  • the printing ink 10 in step g) arise in the entire layer structure the recesses 9 in the form of the negative sign.
  • step h) can finally the layer structure according to the invention with another Protective layer 7 are provided.
  • the carrier film 3 is also provided with a soluble printing ink 10 printed in the form of the later negative characters (Step a)) and then with the first cover layer 4 and the magnetic layer 5 provided (step b) and c)).
  • the magnetic layer 5 printed with a caustic color 13 in the form of the inverse magnetic coding (Step d)) so that the magnetic layer is removed in this area and the magnetic layer-free coding regions 8 arise (step e)).
  • the second covering layer 6 is coated again (Step f)), the activation of the printing ink 10 for the generation of the negative characters 9 (step g)) and optionally the provision of a further protective layer 7 (step h)).
  • step a the carrier film 3 is included the activatable printing ink 11 printed in the form of inverse magnetic coding and then in step b) with the first cover layer 4 and the Magnetic layer 5 fully coated or vapor-coated.
  • Step c) the printing ink 11 is activated so that the magnetic layer-free Coding segments 8 arise.
  • step d) the coating is carried out with the second cover layer 6.
  • the full-surface cover layer 6 is in Step e) with a well-adhering and solvent-resistant printing ink 14 printed in the form of the inverse negative signs later.
  • the layer structure is subjected to a solution process (step f)), in which the areas not covered by the ink 14 except for Carrier film are resolved, whereby the negative characters 9 arise.
  • the Layer construction can in turn be carried out in an optional step g) with a further one Protective layer 7 are provided.
  • Step 9 shows the production variant according to a combination of the methods M2 and V2.
  • the carrier film 3 is first covered over the entire surface the lower cover layer 4 (step a)).
  • the inverse the magnetic coding printed with an activatable ink 11 (Step b)).
  • the magnetic layer 5 provided uniform and full surface on the layer structure.
  • Step d) the ink 11 is activated, causing the magnetic layer 5 in the area of the printing ink 11 is removed, so that the magnetic layer-free Coding segments 8 arise.
  • the second covering layer 6 is provided over the entire surface of the layer structure and then in step f) with a well-adhering and solvent-resistant Ink 14 in the form of the inverse negative signs later printed.
  • the layer structure with a solvent treated, which both the cover layers 4 and 6 as well detaches the magnetic layer 5 from the carrier film 3 in the areas that do not are covered by the solvent-resistant layer 14 (step g)).
  • the negative characters 9 are generated in this way.
  • step 10 shows the production variant according to a combination of the methods M3 and V2.
  • the carrier film 3 as in the previous ones Manufacturing variants already described, with a first cover layer 4 provided (step a)).
  • step b) the magnetic coding directly by printing an ink containing magnetic pigments contains, generated.
  • steps c) to e) the generation then takes place the negative sign 9 by first placing the second cover layer 6 over the magnetic Coding 5 provided, then with a solvent-resistant Printing ink 14 printed in the form of the inverse negative characters and finally the layer structure is treated with a solvent to generate the negative characters 9.
  • the whole Layer structure, as in all other variants, provided with a protective layer 7 become.
  • step 11 shows the production variant according to a combination of the methods M4 and V2.
  • steps a) and b) the carrier film 3 becomes full-surface provided with the first cover layer 4 and the magnetic layer 5.
  • this is the inverse of the magnetic coding with a good adhesive, solvent-resistant paint 12 applied.
  • step d) finally the layer structure is treated with a solvent which only the magnetic layer 5, but not the cover layer 4, so that above the first cover layer 4, the magnetic layer-free coding segments 8 arise.
  • the next step is the layer structure also provided with the entire cover layer 6 (step e)) and then with the solvent resistant ink 14 in shape printed the inverse negative sign (step f)).
  • step g) follows how already described, the generation of the negative sign 9 by detaching the Layers 4,5,12,6, in the areas in which the printing ink 14 is not is available.
  • step h) the covering can also be carried out a protective layer 7.
  • step 12 shows the production variant according to a combination of the methods M5 and V2.
  • the carrier film is also covered with a full surface first cover layer 4 and the magnetic layer 5 (step a) and b)).
  • step c) the inverse of the magnetic coding, i. H. the area of the later areas free of magnetic layers, with a caustic Paint containing an acid or a suitable solvent, printed on.
  • the caustic or solvent paint only removes the magnetic layer 5, so that the magnetic layer-free coding segments 8 arise.
  • step b) show the production variant according to a combination of the methods M1 and V3.
  • both the inverse is on the carrier film 3 the desired magnetic coding as well as the negative signs with a soluble ink 11 printed as a separating layer.
  • step b) are over this printing ink 11, the first cover layer 4 and the magnetic layer 5 arranged over the entire surface.
  • the printing ink 11 activated so that the negative characters 9 and the magnetic layer-free coding segments 8 arise.
  • step d) the layer structure printed in register with the second cover layer 6, the negative characters 9 can be left out.
  • a protective layer can be used in step e) 7 are applied.
  • the manufacturing variants according to a combination of the methods M2 to M5 and V3 are not shown below with the aid of figures, since it practically does not differ from the production in the sequence of the process steps distinguish the magnetic coding. With these variants must only at the same time as the magnetic coding also cutouts for the Negative characters are generated in the magnetic layer.
  • the last step basically represents the printing of the second cover layer, which is left out in the area of negative signs.
  • Step a) the carrier film 3 is included the activatable printing ink 11 printed in the form of inverse magnetic coding and then in step b) with the first cover layer 4 and of the magnetic layer 5 coated or vapor-coated over the entire surface.
  • Step c) the printing ink 11 is activated so that the magnetic layer-free Coding segments 8 arise.
  • the coating takes place with the second cover layer 6 (step d)).
  • cover layer 6 becomes a caustic color, which for example is an acid, a solvent or contains a complexing agent, in the form of the later negative signs upset.
  • This caustic color 15 must be chosen so that it remove both the cover layers 4 and 6 and the magnetic layer 5 can. In this way, the negative characters 9 (step f) are created. In one In the last step g) the layer structure can finally be covered again with a protective layer 7 are provided.
  • the carrier film 3 in steps a) to e) with the Magnetic coding and the second cover layer 6 provided by the carrier film 3 a first cover layer 4 (step a)), a soluble layer 11 in the form of inverse magnetic coding (step b)) and a full-surface Magnetic layer 5 (step c)) is provided.
  • the printing ink 11 activated, so that the magnetic layer-free coding segments 8 arise (Step d)).
  • the second cover layer 6 on the Layer structure applied step e)
  • Cover layer 6 in turn with the caustic ink 15 in the form of the later Printed negative signs.
  • the printing ink 15 dissolves the layers 4, 5 and 6, so that recesses in the layer structure, the negative characters 9, arise (Step g)).
  • a protective layer 7 can optionally be provided (Step h)).
  • step 16 shows the production variant according to a combination of the methods M3 and V4.
  • the carrier film is first 3 with a first cover layer 4 and then with the magnetic coding 5 printed (step a) and b)).
  • step c) is followed by the second Cover layer 6 applied (step c)).
  • a caustic printing ink 15 in the form of the later cutouts, whereby the negative characters 9 arise (step d) and e)).
  • a protective layer 7 can be provided again in step f).
  • step 17 shows the production variant according to a combination of the methods M4 and V4.
  • a carrier film 3 which is already in full area with the lower Cover layer 4 (step a)) is provided, the full magnetic layer 5 applied (step b)).
  • the pattern of Magnetic coding printed with a non-soluble printing ink 12 step c)
  • step d) the magnetic layer 5 is in the unprinted areas replaced.
  • step e) the second cover layer is applied 6 and in step f) and g) the treatment with the caustic printing ink 15, which creates the negative sign 9.
  • the Layer structure are covered with a protective layer 7 (step h)).
  • the carrier film 3 first with a cover layer 4 and then with of the magnetic layer 5 coated or vapor-coated over the entire surface (step a) and b)).
  • the layer structure is then treated with an etching paint 13, which removes the unwanted parts of the magnetic layer 5 and thus the generated magnetic layer-free coding segments 8 (step c) and d)).
  • the negative characters are generated as a whole Layer structure by first applying the cover layer 6 (step e)), and then the treatment with another caustic Printing ink 15 takes place, which produces the cutouts or negative characters 9 (Step f) and g)).
  • the layer structure can be covered with a protective layer 7 are provided (step h)).
  • the untreated surface of the carrier film can of course be used all process variants with additional layers, such as a full-surface, semi-transparent metal layer or luminescent prints become.
  • the respective process steps are preferably carried out in a continuous Process carried out on a plastic film in sheet form. Subsequently the finished film is made into the desired security elements Cut the shape and attached it to the document material.
  • the item in the document material during the production of the document be embedded, e.g. as a window security thread. Should that Element on the document surface, so it will Element over an appropriate adhesive layer with the document material connected, the carrier film preferably as a protective layer comes to rest on the side facing away from the document.
  • the endless carrier material can also be used as a transfer film become.
  • the carrier film must be prepared so that the layer structure can be solved by it, e.g. B. by providing a special Interface.

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  • Credit Cards Or The Like (AREA)
  • Printing Methods (AREA)
  • Burglar Alarm Systems (AREA)
  • Adornments (AREA)
  • Hard Magnetic Materials (AREA)
  • Soft Magnetic Materials (AREA)
  • Powder Metallurgy (AREA)

Claims (18)

  1. Document de sécurité ou infalsifiable (1) comprenant un élément de sécurité (2), qui comporte au moins une première couche (6) munie d'évidements (9) sous la forme de caractères ou de motifs ou similaires, ainsi qu'une couche magnétique (5) disposée sous cette première couche (6), caractérisé en ce que la couche magnétique (5) est prévue de manière discontinue sous la forme d'un codage, et en ce que, dans les zones dans lesquelles les évidements (9) et la couche magnétique (5) se recouvrent, les évidements (9) sont également présents dans la couche magnétique (5).
  2. Elément de sécurité (2) pour un document de sécurité (1), tel que par exemple un billet de banque, une carte d'identité ou similaires, qui comporte au moins une première couche (6) avec des évidements (9) sous la forme de caractères, de motifs ou similaires, ainsi qu'une couche magnétique (5) disposée au-dessous de cette première couche (6), caractérisé en ce que la couche magnétique (5) est prévue de manière discontinue sous la forme d'un codage, et en ce que, dans les zones dans lesquelles les évidements (9) et la couche magnétique (5) se recouvrent, les évidements (9) sont également présents dans la couche magnétique (5).
  3. Elément de sécurité selon la revendication 2, caractérisé en ce que, en dessous de la couche magnétique (5), est disposée une autre couche (4), qui comporte au moins les évidements (9) sous la forme de caractères, de motifs ou similaires.
  4. Elément de sécurité selon la revendication 2 ou 3, caractérisé en ce que la première couche (6) est une couche métallique, un hologramme ou une encre.
  5. Procédé de fabrication d'un élément de sécurité pour un document de sécurité, tel qu'un billet de banque, une carte d'identité ou similaire, qui comporte au moins une première couche munie d'évidements sous la forme de caractères ou de motifs, ainsi qu'une couche magnétique disposée en dessous de cette couche opaque, caractérisé en ce que la couche magnétique est prévue de manière discontinue sous la forme d'un codage, et en ce que, pour la couche magnétique, dans les zones dans lesquelles les évidements et la couche magnétique se recouvrent, les évidements sont prévus également dans la couche magnétique.
  6. Procédé selon la revendication 5, caractérisé en ce que le codage magnétique et, le cas échéant, les évidements sont réalisés par les étapes suivantes consistant :
    a) à imprimer une feuille translucide en matière plastique avec une encre susceptible d'être excitée, sous la forme du codage inverse,
    b) à appliquer sur toute la surface, une couche magnétique sur l'encre susceptible d'être excitée,
    c) à exciter l'encre, de telle façon que la couche magnétique soit éliminée dans la zone de l'encre.
  7. Procédé selon la revendication 5, caractérisé en ce que le codage magnétique et, le cas échéant, les évidements sont réalisés en appliquant la couche magnétique sous la forme du codage souhaité.
  8. Procédé selon la revendication 7, caractérisé en ce que le codage magnétique et, le cas échéant, les évidements sont imprimés avec une encre magnétique, ou bien sont transférés sur la feuille à l'aide d'un procédé de transfert.
  9. Procédé selon la revendication 5, caractérisé en ce que le codage magnétique et, le cas échéant, les évidements est (sont) réalisé(s) par les étapes suivantes consistant :
    a) à appliquer sur toute la surface la couche magnétique sur une feuille translucide en matière plastique,
    b) à imprimer la couche magnétique avec une encre à bonne adhérence à la forme du codage,
    c) à éliminer les zones non imprimées de la couche magnétique.
  10. Procédé selon la revendication 5, caractérisé en ce que le codage magnétique est réalisé par les étapes suivantes consistant :
    a) à appliquer sur toute la surface la couche magnétique sur une feuille translucide en matière plastique,
    b) à imprimer la couche magnétique avec une encre décapante à la forme du codage inverse, de telle façon que les parties non souhaitées du codage soient évacuées.
  11. Procédé selon l'une des revendications 6 à 10, caractérisé en ce que la feuille en matière plastique est munie au cours d'une première étape d'une couche de recouvrement.
  12. Procédé selon l'une des revendications 5 à 11, caractérisé en ce que les évidements sont réalisés au moins dans la première couche par les étapes suivantes consistant :
    a) à prévoir une deuxième encre susceptible d'être excitée, à la forme des évidements,
    b) à appliquer la première couche sur l'encre susceptible d'être excitée,
    c) à exciter cette encre, de telle façon que la couche opaque dans la zone de l'encre soit éliminée.
  13. Procédé selon l'une des revendications 5 à 10, caractérisé en ce que les évidements sont réalisés au moins dans la première couche par les étapes suivantes consistant :
    a) à imprimer la première couche avec une encre présentant le plus possible une bonne adhérence, à la forme de l'inverse des évidements,
    b) à éliminer les zones non imprimées de la première couche et éventuellement les couches disposées sous la première couche.
  14. Procédé selon l'une des revendications 5 à 10, caractérisé en ce que la première couche est une encre métallique, qui est imprimée de telle façon que les évidements restent libres.
  15. Procédé selon l'une des revendications 5 à 10, caractérisé en ce que les évidements sont réalisés au moins dans la première couche par impression de la première couche avec une encre décapante, de telle façon que les zones imprimées de la première couche et, le cas échéant, les couches sous-jacentes, soient éliminées.
  16. Procédé de fabrication d'un document de sécurité, caractérisé en ce que, pendant la fabrication du document de sécurité, est noyé un élément de sécurité selon au moins l'une des revendications 2 à 4.
  17. Procédé de fabrication d'un document de sécurité, caractérisé en ce que, pendant la fabrication du document de sécurité, est fixé à la surface du matériau du document un élément de sécurité selon au moins l'une des revendications 2 à 4.
  18. Procédé selon la revendication 17, caractérisé en ce que le document de sécurité est réalisé sur un support intermédiaire, est relié au document par une couche collante ou une couche de laque, et éventuellement est retiré du support intermédiaire.
EP96944602A 1995-12-22 1996-12-19 Document infalsifiable pourvu d'un element de securite, et son procede de production Expired - Lifetime EP0810925B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19548528 1995-12-22
DE19548528A DE19548528A1 (de) 1995-12-22 1995-12-22 Sicherheitsdokument mit einem Sicherheitselement und Verfahren zu dessen Herstellung
PCT/EP1996/005726 WO1997023357A1 (fr) 1995-12-22 1996-12-19 Document infalsifiable pourvu d'un element de securite, et son procede de production

Publications (2)

Publication Number Publication Date
EP0810925A1 EP0810925A1 (fr) 1997-12-10
EP0810925B1 true EP0810925B1 (fr) 2000-03-15

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EP96944602A Expired - Lifetime EP0810925B1 (fr) 1995-12-22 1996-12-19 Document infalsifiable pourvu d'un element de securite, et son procede de production

Country Status (7)

Country Link
US (2) US6318758B1 (fr)
EP (1) EP0810925B1 (fr)
AT (1) ATE190563T1 (fr)
AU (1) AU2874597A (fr)
DE (2) DE19548528A1 (fr)
ES (1) ES2144283T3 (fr)
WO (1) WO1997023357A1 (fr)

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Also Published As

Publication number Publication date
ES2144283T3 (es) 2000-06-01
WO1997023357A1 (fr) 1997-07-03
US6318758B1 (en) 2001-11-20
US20020056758A1 (en) 2002-05-16
DE19548528A1 (de) 1997-06-26
DE59604690D1 (de) 2000-04-20
EP0810925A1 (fr) 1997-12-10
ATE190563T1 (de) 2000-04-15
AU2874597A (en) 1997-07-17
US6454166B1 (en) 2002-09-24

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