EP0987662B2 - Verfahren zur Herstellung von Sicherungselementen für die elektronische Artikelsicherung - Google Patents

Verfahren zur Herstellung von Sicherungselementen für die elektronische Artikelsicherung Download PDF

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Publication number
EP0987662B2
EP0987662B2 EP99117104A EP99117104A EP0987662B2 EP 0987662 B2 EP0987662 B2 EP 0987662B2 EP 99117104 A EP99117104 A EP 99117104A EP 99117104 A EP99117104 A EP 99117104A EP 0987662 B2 EP0987662 B2 EP 0987662B2
Authority
EP
European Patent Office
Prior art keywords
fibers
layer
soft magnetic
cellulose
elements
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
EP99117104A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0987662A2 (de
EP0987662B1 (de
EP0987662A3 (de
Inventor
Manfred Dr. Rührig
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.)
Meto International GmbH
Original Assignee
Meto International 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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7881591&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0987662(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Meto International GmbH filed Critical Meto International GmbH
Publication of EP0987662A2 publication Critical patent/EP0987662A2/de
Publication of EP0987662A3 publication Critical patent/EP0987662A3/de
Application granted granted Critical
Publication of EP0987662B1 publication Critical patent/EP0987662B1/de
Publication of EP0987662B2 publication Critical patent/EP0987662B2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
    • G08B13/2405—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting characterised by the tag technology used
    • G08B13/2408—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting characterised by the tag technology used using ferromagnetic tags
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
    • G08B13/2428—Tag details
    • G08B13/2437—Tag layered structure, processes for making layered tags
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
    • G08B13/2428—Tag details
    • G08B13/2437—Tag layered structure, processes for making layered tags
    • G08B13/244—Tag manufacturing, e.g. continuous manufacturing processes
    • 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
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/659—Including an additional nonwoven fabric

Definitions

  • the invention relates to a method for producing securing elements for the electronic article surveillance, wherein the securing elements are made of at least two layers. Furthermore, the invention relates to a fuse element produced by the method according to the invention.
  • EP 0 340 034 B1 has already disclosed a securing element for electronic article surveillance in warehouses and department stores which contains fibers of a material with high permeability and low coercive force. These fibers are either contained in a paper substrate or they are adhered to the substrate. The orientation of the fibers in or on the substrate is entirely arbitrary, which is relatively likely to cause the fibers to overlap and magnetically couple with other fibers. This concentrates and amplifies the magnetic flux of the fibers, whereby the fuse elements described in the patent can be detected regardless of their orientation with respect to the interrogation field of the electronic article surveillance system.
  • the invention has the object to provide a method for producing cost-effective and reliable working fuse elements for electronic article surveillance.
  • the object is achieved by a method having the features specified in claim 1.
  • the advantage of the method according to the invention is primarily to be seen in the fact that the second layer with the soft magnetic fibers can be very thin, since it is supported by the first, thicker layer.
  • the second layer with the soft magnetic fibers can therefore be produced from a very dilute paper fiber suspension, which - as described in more detail below - brings enormous advantages in terms of the subsequent alignment and the processable length of the soft magnetic fibers in the still wet cellulosic material of the second layer.
  • both layers are brought together when still wet, they adhere firmly after drying without any further steps, eg. B. gluing together of both layers would be required.
  • the soft magnetic elements which are fibers with very small diameter
  • the alignment is carried out according to a particularly advantageous embodiment of the method, characterized in that above or below the layer of cellulosic material containing the soft magnetic fibers, a device is provided which generates a magnetic field in the longitudinal direction or in the running direction of the web. Since the cellulosic mass is still in a moist state at this time, the fibers are aligned under the influence of the magnetic field in the direction of travel of the web.
  • alignment of the fibers in the longitudinal direction of the web can also be forced by accelerating the layer of cellulosic material with inserted soft magnetic fibers; As a result, the fibers are likewise oriented in the longitudinal direction of the layer.
  • the fuse element for electronic article surveillance produced by the method has the features specified in claim 3.
  • the magnetic elements are fibers made of a soft magnetic material.
  • the length of the soft magnetic fibers is on average greater than 2 cm.
  • Fig. 1 shows a schematic representation of a device with which the inventive method is performed.
  • the cellulose composition 6 Via a feed device 8, the cellulose composition 6 is applied to a support surface 10.
  • the support surface 10 is e.g. around a fine-meshed endless net, which is guided over deflecting rollers 14, 15. Excess water can be removed from the cellulose composition 6 through the meshes of the net 10.
  • a second cellulose mass 5 is applied to a second bearing surface 9.
  • This support surface 9 may again be a fine-meshed endless net, which is guided over deflecting rollers 11, 12, 16. Below the deflection roller 16, the layer 3 of cellulose mass 5 is applied in a still moist state to the first layer 2 of cellulose mass 6.
  • the running direction of the material web, which consists of the layers 2, 3, is indicated in the drawing by an arrow.
  • the cellulosic material 6 of the first layer 2 consists only of cellulose fibers
  • the cellulose composition 5 of the second layer 3 is mixed with soft magnetic fibers 4.
  • the mixing ratio is a maximum of 50:50.
  • a device is arranged which generates a magnetic field in the direction of travel of the material web 2, 3.
  • the cellulose layer 5 of the second layer has only a dilute concentration of cellulose fibers. If now the still moist layer 3 is passed under the device, the soft magnetic fibers 4 have sufficient freedom of movement to orient themselves in the direction of an acting magnetic field.
  • the detection probability for the securing elements 1, which are produced from the material web 2, 3, can be increased considerably for a given concentration of soft magnetic fibers.
  • alignment of the soft magnetic fibers 4 can also be forced by mechanical action on the still wet cellulosic mass 5 containing the soft magnetic fibers 4.
  • a force component in the running direction of the material web 3 can be achieved simply by accelerating the material web 3 in the running direction.
  • Fig. 2 is a perspective view of a manufactured according to the inventive fuse element 1 can be seen.
  • the securing element 1 consists of a first layer 2, which is a cellulosic material 6, which is composed of cellulose fibers without further admixtures.
  • the second layer 3 consists of a mixture of a cellulose mass 5, which are added soft magnetic fibers 4.
  • the length of the soft magnetic fibers 4 is dimensioned so that the fibers 4 are excited in an electronic article surveillance system with high probability to emit a characteristic signal, so that subsequently an alarm is triggered.
  • the soft magnetic fibers 4 are oriented according to a development of the fuse elements 1 according to the invention substantially in one direction. This has the advantage that even with a small number of fibers 4 per fuse element 1, the characteristic signal of the fuse element can be easily detected by an article surveillance system.
  • the advantages of the security elements 1 are mentioned, which have been prepared by the process according to the invention. Since two-ply paper is used for the production of the fuse elements 1, it is possible to keep the concentration of cellulose fibers in the ply 3 containing the soft magnetic fibers 4 very low. Consequently, the concentration of the soft magnetic fibers 4 can be low, whereby the manufacturing cost of a fuse element 1 according to the invention can be kept correspondingly low.
  • Another advantage relates to the tear strength of the two-ply material web 2, 3.
  • the layer 3 with the substantially longitudinally oriented soft magnetic fibers 4 has an anisotropic tear strength. In particular, the tear strength in the direction of orientation of the fibers 4 is very low. However, since the cellulosic fibers in the first layer 2 are aligned completely arbitrarily, the web 2, 3 as such has the preferred isotropic tear strength. Furthermore, very long fibers can be used and the fibers are approximately stretched during the manufacturing process.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Computer Security & Cryptography (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Burglar Alarm Systems (AREA)
  • Magnetic Record Carriers (AREA)
  • Adornments (AREA)
  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
  • Credit Cards Or The Like (AREA)
  • Paper (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
  • Electronic Switches (AREA)
EP99117104A 1998-09-19 1999-08-31 Verfahren zur Herstellung von Sicherungselementen für die elektronische Artikelsicherung Expired - Lifetime EP0987662B2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843062A DE19843062A1 (de) 1998-09-19 1998-09-19 Verfahren zur Herstellung von Sicherungselementen für die elektronische Artikelsicherung
DE19843062 1998-09-19

Publications (4)

Publication Number Publication Date
EP0987662A2 EP0987662A2 (de) 2000-03-22
EP0987662A3 EP0987662A3 (de) 2001-03-21
EP0987662B1 EP0987662B1 (de) 2003-10-15
EP0987662B2 true EP0987662B2 (de) 2007-05-09

Family

ID=7881591

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99117104A Expired - Lifetime EP0987662B2 (de) 1998-09-19 1999-08-31 Verfahren zur Herstellung von Sicherungselementen für die elektronische Artikelsicherung

Country Status (9)

Country Link
US (1) US6585857B2 (es)
EP (1) EP0987662B2 (es)
AT (1) ATE252262T1 (es)
CA (1) CA2282808C (es)
DE (2) DE19843062A1 (es)
DK (1) DK0987662T3 (es)
ES (1) ES2209301T5 (es)
HU (1) HUP9903175A3 (es)
PL (1) PL188022B1 (es)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10022110B4 (de) * 2000-05-08 2007-10-25 Dieter Ronnenberg Beeinflussung eines Bahneigenschafts-Profiles mittels mindestens eines Schallfeldes
CH696744A5 (de) * 2003-07-07 2007-11-15 Landqart Sicherheitspapier und Verfahren zu dessen Herstellung.
FR2861101B1 (fr) * 2003-10-15 2007-06-15 Arjo Wiggins Papier de securite multijet
US8628839B2 (en) * 2005-12-26 2014-01-14 Fuji Xerox Co., Ltd. Recording medium
JP4847191B2 (ja) * 2006-04-14 2011-12-28 富士ゼロックス株式会社 記録用紙
JP5073324B2 (ja) * 2007-03-12 2012-11-14 富士ゼロックス株式会社 記録用紙
US8753482B2 (en) * 2008-04-30 2014-06-17 Honeywell International Inc. Method and apparatus for treatment of paper stock
US20110014537A1 (en) * 2009-07-16 2011-01-20 Ford Motor Company Fuel cell

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2919576A1 (de) † 1978-05-17 1979-11-29 Arjomari Prioux Metallfasern enthaltender faserverband, verfahren zu seiner herstellung und seine verwendung, insbesondere in der papierindustrie
DE2905441A1 (de) † 1979-02-13 1980-08-21 Gao Ges Automation Org Wertpapier mit gedruckten echtheitskennzeichen in einer papierschicht
EP0498186A1 (de) † 1991-01-17 1992-08-12 GAO Gesellschaft für Automation und Organisation mbH Sicherheitsdokument und Verfahren zu seiner Herstellung
DE4327225A1 (de) † 1993-08-13 1995-02-16 Basf Ag Magnetisches Tintenkonzentrat
DE19581817T1 (de) † 1994-11-03 1997-10-16 Arjo Wiggins Sa Papier, das variable, kontrollierte Konzentrationen an Sicherheitselementen enthält, und Verfahren zu seiner Herstellung
DE19650611A1 (de) † 1996-12-06 1998-06-10 Meto International Gmbh Verfahren und Vorrichtung zur Herstellung von Sicherungselementen für die elektronische Artikelsicherung sowie ein entsprechendes Bandmaterial

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1023835B (it) * 1973-05-11 1978-05-30 Dasy Int Sa Materiale per documenti
AT392168B (de) * 1986-04-18 1991-02-11 Skidata Computergesellschaft M Verfahren zur herstellung eines optisch und magnetisch kennzeichenbaren aufzeichnungstraegers
US5191315A (en) * 1990-12-31 1993-03-02 Pitney Bowes Inc. Deactivatable electronic article surveillance markers using short semi-hard magnetic wires
US5143583A (en) * 1991-04-02 1992-09-01 Marchessault Robert H Preparation and synthesis of magnetic fibers
US5601931A (en) * 1993-12-02 1997-02-11 Nhk Spring Company, Ltd. Object to be checked for authenticity and a method for manufacturing the same

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2919576A1 (de) † 1978-05-17 1979-11-29 Arjomari Prioux Metallfasern enthaltender faserverband, verfahren zu seiner herstellung und seine verwendung, insbesondere in der papierindustrie
DE2905441A1 (de) † 1979-02-13 1980-08-21 Gao Ges Automation Org Wertpapier mit gedruckten echtheitskennzeichen in einer papierschicht
EP0498186A1 (de) † 1991-01-17 1992-08-12 GAO Gesellschaft für Automation und Organisation mbH Sicherheitsdokument und Verfahren zu seiner Herstellung
DE4327225A1 (de) † 1993-08-13 1995-02-16 Basf Ag Magnetisches Tintenkonzentrat
DE19581817T1 (de) † 1994-11-03 1997-10-16 Arjo Wiggins Sa Papier, das variable, kontrollierte Konzentrationen an Sicherheitselementen enthält, und Verfahren zu seiner Herstellung
DE19650611A1 (de) † 1996-12-06 1998-06-10 Meto International Gmbh Verfahren und Vorrichtung zur Herstellung von Sicherungselementen für die elektronische Artikelsicherung sowie ein entsprechendes Bandmaterial

Also Published As

Publication number Publication date
ATE252262T1 (de) 2003-11-15
CA2282808C (en) 2004-08-17
US20020127940A1 (en) 2002-09-12
HU9903175D0 (en) 1999-11-29
CA2282808A1 (en) 2000-03-19
HUP9903175A3 (en) 2001-03-28
EP0987662A2 (de) 2000-03-22
EP0987662B1 (de) 2003-10-15
PL335474A1 (en) 2000-03-27
EP0987662A3 (de) 2001-03-21
US6585857B2 (en) 2003-07-01
ES2209301T5 (es) 2007-11-16
HUP9903175A2 (hu) 2000-06-28
ES2209301T3 (es) 2004-06-16
DK0987662T3 (da) 2004-01-19
DE59907357D1 (de) 2003-11-20
DE19843062A1 (de) 2000-03-23
PL188022B1 (pl) 2004-11-30

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