DE60201880T3 - Security device, preferably, a security thread consisting of visually readable characters and magnetic properties, and method for their preparation - Google Patents

Security device, preferably, a security thread consisting of visually readable characters and magnetic properties, and method for their preparation

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Publication number
DE60201880T3
DE60201880T3 DE2002601880 DE60201880T DE60201880T3 DE 60201880 T3 DE60201880 T3 DE 60201880T3 DE 2002601880 DE2002601880 DE 2002601880 DE 60201880 T DE60201880 T DE 60201880T DE 60201880 T3 DE60201880 T3 DE 60201880T3
Authority
DE
Germany
Prior art keywords
layer
magnetic code
ink
magnetic
preferably
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.)
Active
Application number
DE2002601880
Other languages
German (de)
Other versions
DE60201880D1 (en
DE60201880T2 (en
Inventor
Maurizio Lazzerini
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.)
FEDRIGONI S.P.A., IT
Original Assignee
FABRIANO SECURITIES Srl OSPIATE DI BOLLATE
Fabriano Securities Srl
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
Family has litigation
Application filed by FABRIANO SECURITIES Srl OSPIATE DI BOLLATE, Fabriano Securities Srl filed Critical FABRIANO SECURITIES Srl OSPIATE DI BOLLATE
Priority to EP02002901A priority Critical patent/EP1334844B2/en
Publication of DE60201880D1 publication Critical patent/DE60201880D1/en
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27589094&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE60201880(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application granted granted Critical
Publication of DE60201880T2 publication Critical patent/DE60201880T2/en
Publication of DE60201880T3 publication Critical patent/DE60201880T3/en
Application status is Active legal-status Critical
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; 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
    • B42D25/00Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30Identification or security features, e.g. for preventing forgery
    • B42D25/355Security threads

Description

  • The The present invention relates to a safety device according to the preamble of Claim 1 and a method according to the preamble of claim 6. The security device is preferably a security thread with visible negative characters or fonts and also with a magnetic property. The security thread can be in one Document such as a banknote.
  • Security threads that partially or completely into a paper substrate of a banknote during the manufacturing process of the paper substrate are commonly used as security devices to check the Authenticity of the banknote used.
  • One of these conventional security threads is used in euro banknotes. To implement such a security thread, three methods are used in combination, which have the following properties:
    First, a method of forming negative characters and / or fonts in a continuous metal layer is used, for example, by first applying a base layer of pure aluminum on a polyester substrate so that the aluminum abuts the polyester substrate at one of its faces, and then aluminum parts are demetallised or stripped from the aluminum base layer so that characters or fonts formed by recesses are formed as negative. These characters or fonts are referred to throughout this description as "negative characters or fonts." By visually checking such characters and / or fonts against the background light, they appear transparent and thus readable.
  • The Presence of the metallic base can be done using a capacitive or inductive circuit can be detected.
  • Secondly have the conventional ones security threads a magnetic property in the so-called IMT format. The IMT format is realized by having areas with modulated lengths and be deposited at a constant thickness, the length of a single module is constant and defined as greater than zero. These security threads were developed and patented by the Bank of England.
  • thirdly have the security threads a combination of metallic and magnetic properties as a single security thread.
  • To the Developing and producing a security thread with the above mentioned Properties are apart from the chemical and physical Knowledge of sophisticated and costly manufacturing processes necessary, since a corrosion problem can occur if a Security thread with magnetic properties on a metallic Base in an aqueous or wet solution introduced which is traditionally used for papermaking. This corrosion can become a Loss of magnetic and / or metallic properties.
  • Of Another has for The papermaking used water sometimes a diminished quality, it is provided with chlorine, and thereby the production of security threads is complicated.
  • Another example of a conventional security thread is in EP-0 516 790 B1 revealed and in the 3 shown. Here, the conventional security thread has a transparent substrate, a metallic layer such as a layer of pure aluminum with negative signs 30a that are integrated in it, and a magnetic layer 50 above or below the metallic layer 10 is arranged, wherein the geometric arrangement of the magnetic layer 50 allows the negative characters 30a are free (in this description, the terms "above" and "below" refer to opposite directions).
  • The Manufacturing method of such a security thread has a Step of printing an activatable ink on the substrate, a step of applying a metallic layer to the printed one Side of the substrate and a step to activate the ink, so as to remove the ink together with the metal deposited thereon, whereby recesses are formed in the metallic layer. Thus, the negative characters are obtained.
  • It It is the object of the present invention to provide a permanent security thread with signs visible against the backlight and also areas with coded magnetic properties has, as well as an inexpensive method for producing the same.
  • These Task is by the safety device according to the invention with the features of claim 1 or by the method of manufacturing The like with the features of claim 6 solved.
  • Preferably is a cover layer directly above the magnetic code layer is arranged so that the magnetic code layer is protected and smoothed becomes.
  • Preferably, a hot melt adhesive or a coating layer is provided on the side of the substrate opposite to the magnetic code layer, and / or on the side of the cover layer opposite to the magnetic code layer to facilitate integration of the security device into a document such as a banknote.
  • Preferably consist of the printed ink layer, the support layer and / or the cover layer a gray nitroacryllöslichen Resin-based ink containing less than 5% aluminum powder. Consequently the security device has an outward appearance like a metallic thread, but due to the negligible Aluminum part of the ink has the safety device no metallic Background due to the lack of electrical wiring or due to the lack of heat conduction.
  • Preferably is the magnetic code layer a printed layer of magnetic ink, which allows easy production of the magnetic code layer.
  • Preferably The method further comprises a step of printing a cover sheet over the sheet Magnetic code layer.
  • Preferably the method further comprises a step of arranging a Hot adhesive or a coating layer on the side of the substrate that the Magnetic code position is opposite, and / or on the side of the cover layer, the the magnetic code position is opposite.
  • Preferably The printed ink layer, the support layer and / or the cover layer by means of a gray ink, preferably by means of a nitroacryllöslichen Resin-based ink containing less than 5% aluminum powder having.
  • Preferably For example, the step of printing the printed ink layer uses the Corona phenomenon.
  • Other Aspects and advantages of the present invention will become apparent from the following Description in conjunction with the figures described, which preferred embodiment of the present invention.
  • 1 shows a schematic plan view of a safety device according to an embodiment of the present invention;
  • 2 shows a schematic cross-sectional view of the in the 1 shown safety device; and
  • 3 shows a schematic cross-sectional view of a conventional security thread.
  • As a system for manufacturing a security device according to the invention, such as a security thread 1 which is to be integrated into a document such as a banknote (not shown), a conventional Intaglio printing machine (not shown), such as used for printing a flexible packaging material, may be used.
  • The configuration of the security thread according to the invention 1 and the manufacturing process together with the 1 and 2 described in which schematic top and cross-sectional views of the security thread 1 to be shown.
  • The security thread 1 is formed by a substrate, which is preferably a transparent polyester substrate 2 is.
  • On the substrate 2 is a printed ink layer 3 arranged the negative characters or fonts 3a which then appear transparent when visually inspected against the backlight.
  • To the Printing is preferably a nitroacryl-soluble ink based on synthetic resins, containing less than 5% aluminum powder applied at 52 dyne by the corona phenomenon. Because the ink is negligible Contains aluminum content in it, the ink does not conduct electricity or heat. Preferably, the ink is a gray or silver ink.
  • It should be noted that the printed ink layer 3 not completely through the characters or fonts 3a is covered so that there are free areas 3b that are sufficient to have a magnetic code adjacent to the characters or fonts 3a is arranged, which are applied at a later step.
  • Within the free areas 3b directly above the printed ink layer 3 is preferably a support layer 4 , It should be noted that the support layer 4 partly only within the free areas 3b adjacent to the scriptures or signs 3a is arranged so that the characters or fonts 3a and the support layer 4 alternately in a longitudinal direction of the security thread 1 are arranged, and the characters or fonts 3a be through the support layer 4 not covered.
  • Preferably, the support layer 4 also printed by a gray nitroacryllösliche resin-based ink containing less than 5% aluminum powder.
  • Directly above the support layer 4 is a magnet code location 5 arranged. Similar to the support layer 4 is the magnetic code layer 5 partly only within the free areas 3b between the characters or fonts 3a arranged.
  • The magnetic code layer 5 is preferably by first embossed recesses on a surface of the support layer 4 formed, that of the printed ink layer 3 is opposed, by embossing rollers (not shown). By embossing rollers namely a plurality of recesses with different depths in the support layer 4 configured so that a predetermined signal sequence is generated in which, for example, the recesses have a depth of 100 microns, representing the binary number "1", whereas where the recesses have a depth of 50 microns, the binary number "0" represent.
  • After the support layer 4 was imprinted, a magnetic ink is applied directly to the embossed surface of the support layer 4 applied. In this case, in the recesses having a depth of 100 μm, twice the amount of the magnetic ink can be accommodated in comparison with the recesses having a depth of only 50 μm. For example, when the magnetic ink is dried, the final thickness of the magnetic ink in the recesses having a depth of 100 μm may be 10 μm, whereas the final thickness of the magnetic ink in the recesses having a depth of 50 μm may be 5 μm ,
  • As a result, the magnetic code layer provides 5 with different thicknesses of the dried magnetic ink for the signal sequence, which can be read for example by means of a capacitive or inductive circuit (not shown).
  • Directly above the magnetic code layer 5 is preferably a cover layer 6 printed from ink. Similar to the support layer 4 and the magnetic code layer 5 is the cover layer 6 partly only within the free areas 3b between the writings or signs 3a arranged. The cover layer 6 provides protection and also provides a flat surface over the magnetic code layer 5 because the magnetic code position 5 itself may have an uneven surface when the magnetic ink is dried.
  • Preferably, the cover layer exists 6 a gray nitroacryl-soluble synthetic resin-based ink containing less than 5% aluminum powder, similar to the printed ink layer 3 or the support layer 4 ,
  • In the end, the side of the substrate 2 that of the magnetic code layer 5 opposite, and / or on the side of the thread 1 that the substrate 2 is opposite, a hot melt adhesive or a coating layer 7 can be applied, and it can be reactivated during the paper making step to the thread 1 to integrate into the paper (not shown).
  • A thread made in this way 1 can be processed in any paper mills in any manufacturing process, for example a step of integrating the yarn 1 in the paper.
  • In the case of processing in a so-called Windows technique before printing the hot melt adhesive or the coating layer 7 For example, the polyester bobbin (not shown) of the polyester substrate may be coupled to another polyester.
  • The security thread 1 According to the present invention provides the following advantages.
  • The optical characteristics of the security thread 1 that is, the negative characters or fonts 3a which are visually readable are printed using a conventional gray ink with a small amount of aluminum powder (less than 5%), while the conventional yarn is printed by applying a continuous aluminum layer to a polyester substrate and then by stripping a portion of the aluminum by demetallization is generated so as to form a negative sign. Thus, the manufacturing cost of the security thread according to the present invention is reduced, as the conventional costly steps for metallization and demetallization are omitted.
  • For example, while the conventional euro banknote security thread requires at least two sophisticated metallization and demetallizing devices, the security thread can 1 according to the present invention using the conventional roll press (not shown) having different areas and a printing width of 1600 mm, whereas the printing width of the conventional thread in the Euro banknote with an aluminum sheet is 800 mm, which has to be subjected to a demetallization process. This further reduces the costs considerably.
  • by virtue of the printing width of 1600 mm according to the present Invention can all necessary manufacturing steps on the same manufacturing assembly be implemented, and due to the double print width of 1600 mm compared to the conventional printing width of 800 mm, the double production quantity can be realized.
  • In addition, the gray color ink guides the printed ink layer 3 neither electric current still heat due to the negligible amount of aluminum in it, leaving the printed ink layer 3 does not form a metallic background. This is the security thread 1 resistant even to the worst environmental conditions during the papermaking process. The magnetic code layer 5 of the security thread 1 According to the present invention on the one hand has a flat surface due to the cover layer 6 , and on the other hand, different thicknesses of the magnetic ink due to the supporting layer 4 with the different embossed recesses. For example, the slots that represent the binary number "1" have twice the depth of the slots that represent the binary number "0". Since the binary number "0" can be clearly distinguished in comparison with the IMT format, in which the binary number "0" is characterized by the complete absence of a magnetic property, the security thread can 1 be at least 30% longer according to the present invention.
  • Of course you can the embodiment described above in more diverse Modified within the scope of the invention.
  • In addition, the cover layer 6 be omitted, so that the magnetic code position 5 directly through the hot-melt adhesive or through the coating layer 7 for example covered.
  • The support layer 4 receives differently embossed recesses by the embossing rollers, however, the different recesses may also be formed by another device or by another method such as a suitable printing device and a suitable printing method.
  • In the embodiment described above, the support layer 4 and the cover layer 6 only in the free areas 3b adjacent to the characters or fonts 3a arranged, but it is conceivable that the support situation 4 and / or the cover layer 6 have sufficient transparency so that they are above the characters or fonts 3a to be ordered.
  • In the embodiment described above, the characters or fonts are 3a as well as the magnetic code layer 5 arranged alternately, but it is conceivable that the characters or fonts 3a and the magnetic code layer 3 are arranged arbitrarily.
  • The magnetic code layer 5 According to the embodiment described above, implementing the signal sequence by modulating the thickness of the magnetic code layer.
  • The preferred embodiments according to this Description are for illustration and are non-limiting, and the invention is not limited to the details set forth herein limited, but it may be modified within the scope of the appended claims become.

Claims (11)

  1. Security device, preferably a security thread ( 1 ), in a document such. B. a bill is to be inserted, with a substrate ( 2 ), preferably of a transparent polyester layer; a printed ink layer ( 3 ) above the substrate ( 2 ) and negative symbols or characters ( 3a ) contained therein; a magnetic code layer ( 5 ) above the first position and adjacent to the negative symbols or signs ( 3a ), wherein the magnetic code layer ( 5 ) has a specific signal sequence characterized in that the signal sequence is determined by modulating the thickness of the magnetic code layer ( 5 ) is formed, and a surface of a support layer ( 4 ) located between the printed ink layer ( 3 ) and the magnetic code layer ( 5 ) is arranged on the side of the magnetic code layer ( 5 ) has various embossed recesses according to the specific signal sequence, the different thicknesses of the magnetic code layer ( 5 ).
  2. Safety device according to claim 1, further characterized by a cover layer ( 6 ) above the magnetic code layer ( 5 ) is arranged.
  3. Safety device according to claim 2, further characterized by a heat-adhesive or coating layer ( 7 ) on the side of the substrate ( 2 ) opposite to the magnetic code layer ( 5 ) and / or on the side of the cover layer ( 6 ) opposite to the magnetic code layer ( 4 ).
  4. Safety device according to one of the preceding claims, characterized in that the printed ink layer ( 3 ), the supporting layer ( 4 ) and / or the cover layer ( 6 ) consists of a gray nitroacryllöslichen color ink based on synthetic resin, which consists of less than 5% aluminum powder containing less than 5% aluminum powder.
  5. Safety device according to one of the preceding claims, characterized in that the magnetic code layer ( 5 ) is a printed layer of a magnetic ink.
  6. Method for producing a security device, preferably a security thread ( 1 ), in a document such. B. a bill with the following steps: providing a substrate ( 2 ) preferably of a transparent polyester layer; Placing a printed ink layer ( 3 ) with negative symbols or characters ( 3a ) contained therein, above the substrate ( 2 ); and arranging a magnetic code layer ( 5 ) adjacent to the negative symbols or characters ( 3a ) over the printed ink layer ( 3 ), characterized by the following steps: printing a support layer ( 4 ) on the printed ink layer ( 3 ); Embossing various recesses into an area of between the printed ink layer ( 3 ) and the magnetic code layer ( 5 ) support layer ( 4 ) on the side of the magnetic code layer ( 5 ) according to a specific signal sequence, the different thicknesses of the magnetic code layer ( 5 ), preferably by means of roll embossing.
  7. A method according to claim 6, further characterized in that in the step of arranging the magnetic code layer ( 5 ) the magnetic code layer ( 5 ) on the embossed surface of the support layer ( 4 ) is printed by means of a magnetic ink.
  8. Method according to claim 6 or 7, further characterized by the step of printing a cover layer ( 6 ) at the magnetic code position ( 5 ).
  9. The method of claim 8, further characterized by the step of disposing a heat-sealable adhesive or coating layer ( 7 ) on the side of the substrate ( 2 ) opposite to the magnetic code layer ( 5 ) and / or on the side of the cover layer ( 6 ) opposite to the magnetic code layer ( 4 ).
  10. Method according to one of claims 6 to 9, characterized in that the printed ink layer ( 3 ), the supporting layer ( 4 ) and / or the cover layer ( 6 ) are printed by means of a gray color ink, preferably a nitroacryl-soluble synthetic resin-based ink having less than 5% aluminum powder.
  11. Method according to one of claims 6 to 10, characterized in that the step of printing the printed ink layer ( 3 ) exploits a corona phenomenon.
DE2002601880 2002-02-08 2002-02-08 Security device, preferably, a security thread consisting of visually readable characters and magnetic properties, and method for their preparation Active DE60201880T3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP02002901A EP1334844B2 (en) 2002-02-08 2002-02-08 Security device, preferably a security thread, comprising characters being visually readable as well as magnetic characteristics, and method of producing the same

Publications (3)

Publication Number Publication Date
DE60201880D1 DE60201880D1 (en) 2004-12-16
DE60201880T2 DE60201880T2 (en) 2005-11-03
DE60201880T3 true DE60201880T3 (en) 2010-12-02

Family

ID=27589094

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2002601880 Active DE60201880T3 (en) 2002-02-08 2002-02-08 Security device, preferably, a security thread consisting of visually readable characters and magnetic properties, and method for their preparation

Country Status (8)

Country Link
EP (1) EP1334844B2 (en)
KR (1) KR100918192B1 (en)
AT (1) AT281943T (en)
AU (1) AU2003205742A1 (en)
DE (1) DE60201880T3 (en)
ES (1) ES2231592T5 (en)
UA (1) UA77748C2 (en)
WO (1) WO2003066343A1 (en)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4041025C2 (en) 1990-12-20 2003-04-17 Gao Ges Automation Org Magnetic, metallic security thread with negative writing
JPH07214953A (en) * 1994-02-03 1995-08-15 Mitsubishi Plastics Ind Ltd Production of document checkable in genuineness
GB2319215A (en) * 1996-11-07 1998-05-20 Bank Of England The Governor A Security thread with magnetic patches and visually-readable characters in parallel
IT1296098B1 (en) 1997-11-11 1999-06-09 Mantegazza Walter Security thread with optical and magnetic information can be inserted in documents in general
EP0953937A1 (en) * 1998-04-30 1999-11-03 Innovative Sputtering Technology N.V. (I.S.T.) Security element to prevent counterfeiting of value documents
IT1317204B1 (en) 2000-04-10 2003-05-27 Elmiva S A S Di Walter Mantega Process for the production of a security element perdocumenti, anti-counterfeiting labels, checks, seals and the like
DE10042461C2 (en) * 2000-08-29 2002-11-07 November Ag Molekulare Medizin A process for the forgery-proof marking of articles and forgery-proof marking
KR100407249B1 (en) * 2000-12-29 2003-11-28 한국조폐공사 Magnetic security thread for preventing counterfeit and the uses thereof

Also Published As

Publication number Publication date
AT281943T (en) 2004-11-15
DE60201880T2 (en) 2005-11-03
EP1334844B2 (en) 2010-07-14
ES2231592T5 (en) 2010-12-09
ES2231592T3 (en) 2005-05-16
WO2003066343A1 (en) 2003-08-14
AU2003205742A1 (en) 2003-09-02
EP1334844A1 (en) 2003-08-13
UA77748C2 (en) 2004-10-15
DE60201880D1 (en) 2004-12-16
KR100918192B1 (en) 2009-09-22
KR20040107469A (en) 2004-12-20
EP1334844B1 (en) 2004-11-10

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