EP0987662A2 - Method for producing security elements for the electronic protection of articles - Google Patents

Method for producing security elements for the electronic protection of articles Download PDF

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Publication number
EP0987662A2
EP0987662A2 EP99117104A EP99117104A EP0987662A2 EP 0987662 A2 EP0987662 A2 EP 0987662A2 EP 99117104 A EP99117104 A EP 99117104A EP 99117104 A EP99117104 A EP 99117104A EP 0987662 A2 EP0987662 A2 EP 0987662A2
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EP
European Patent Office
Prior art keywords
layer
fibers
soft magnetic
cellulose
elements
Prior art date
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Granted
Application number
EP99117104A
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German (de)
French (fr)
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EP0987662A3 (en
EP0987662B1 (en
EP0987662B2 (en
Inventor
Manfred Dr. Rührig
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Meto International GmbH
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Meto International GmbH
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    • 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 electronic article surveillance, the safety elements from at least two layers are made.
  • the invention further relates to a securing element produced by the method according to the invention.
  • Fibers made of a material with high permeability and low coercive force contains These fibers are either contained in a paper substrate or they are are glued to the substrate.
  • the orientation of the fibers in or on the Substrate is completely arbitrary, which makes the probability relatively high that the fibers overlap with other fibers and magnetically with them couple. This concentrates the magnetic flux of the fibers and reinforced, thereby eliminating the securing elements described in the patent are described, regardless of their orientation with respect to the Query field of the electronic article surveillance system can be detected can.
  • the invention has for its object a method for producing inexpensive and reliable working security elements for the propose electronic article surveillance.
  • the object is achieved in that a first layer of a cellulose mass is applied to a second layer of a cellulose mass while still moist, one of the two layers being added with soft magnetic elements which emit a characteristic signal in the query field of an article security system, and that from the two Layers in the dried state the desired shape of the securing elements is punched out or cut out.
  • the advantage of the method according to the invention can be seen primarily in the fact that the layer with the soft magnetic fibers can be very thin, since it is supported by the second thicker layer.
  • the 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 with regard to the subsequent alignment and the processable length of the soft magnetic fibers in the still moist cellulose mass of the second layer. Since both layers are also brought together when still moist, they adhere firmly to one another after drying without any further steps, e.g. B. a sticking together of the two layers would be required.
  • the soft magnetic elements which are Fibers with a very small diameter act through when wet external force essentially in the longitudinal direction of the material web be aligned.
  • the alignment takes place according to a particularly favorable one Embodiment of the method in that above or below the Layer of cellulose mass, which contains the soft magnetic fibers, a Device is provided which a magnetic field in the longitudinal direction or in Running direction of the material web generated. Because the cellulose mass to this At the time it is still wet, the fibers are underneath the influence of the magnetic field aligned in the direction of travel of the material web.
  • the fibers can be aligned in the longitudinal direction of the material web also be forced by the fact that the layer of cellulose mass with inserted soft magnetic fibers is accelerated; hereby the fibers are also oriented in the longitudinal direction of the layer.
  • the security element for the electronic manufactured by the process Article security has the following characteristics: Acting in the first position it is a cellulose mass consisting of cellulose fibers.
  • the second Layer also consists of a cellulose mass made up of a mixture composed of cellulose fibers and soft magnetic elements. This Soft magnetic elements are - as already mentioned several times - in one magnetic query field of an electronic article surveillance system for Emission of a characteristic signal.
  • the magnetic elements are made of fibers a soft magnetic material. With a view to the highest possible Detection rate has proven to be advantageous if the length of the Soft magnetic fibers are larger than 2 cm on average.
  • Fig. 1 shows a schematic representation of a device with which the inventive method is carried out.
  • a feed device 8 Via a feed device 8 the cellulose mass 6 is applied to a support surface 10.
  • the Contact surface 10 In the Contact surface 10 is e.g. a fine-meshed endless network that is guided over pulleys 14, 15. Through the mesh of the network 10 can excess water can be removed from the cellulose mass 6.
  • this contact surface 9 can it is in turn a fine-meshed endless network that over Deflection rollers 11, 12, 16 is guided.
  • the direction of travel of the web of material the layers 2, 3, is indicated in the drawing by an arrow.
  • the cellulose mass 6 of the first layer 2 consists only of cellulose fibers there is, the cellulose mass 5 of the second layer 3 are soft magnetic Fibers 4 added.
  • the mixing ratio is a maximum of 50:50.
  • the second layer 3 which contains the soft magnetic fibers 4
  • the Cellulose mass 5 of the second layer only has a dilute concentration Cellulose fibers.
  • the still moist layer 3 under the device 14 passed through, the soft magnetic fibers 4 have enough freedom of movement, to orientate itself in the direction of an acting magnetic field. This forced alignment of the magnetic fibers 4 allows given the concentration of soft magnetic fibers the detection probability for the securing elements 1, which are made of the material web 2, 3 produced, increase significantly.
  • a force component in the direction of travel of the material web 3 simply by the material web 3 is accelerated in the direction of travel.
  • the Fuse element 1 consists of a first layer 2, which is a Cellulose mass 6, which consists of cellulose fibers without further Blends.
  • the second layer 3 consists of a mixture a cellulose mass 5, the soft magnetic fibers 4 are added.
  • the length of the soft magnetic fibers 4 is such that the fibers 4 in an electronic article surveillance system with high probability be excited to emit a characteristic signal, so that subsequently an alarm is triggered.
  • the soft magnetic fibers 4 are according to a development of the invention Securing elements 1 essentially in one direction oriented. This has the advantage that even with a small number of Fibers 4 per fuse element 1 the characteristic signal of Securing element easily detected by an article surveillance system can be.
  • the advantages of the securing elements 1 are again shown mentioned, which have been prepared by the inventive method. Since two-ply paper is used for the production of the securing elements 1 , it is possible to adjust the concentration of cellulosic fibers 3, which the contains soft magnetic fibers 4 to keep very low. Hence, too the concentration of the soft magnetic fibers 4 turn out low, whereby the manufacturing costs for a fuse element 1 according to the invention accordingly can be kept low.
  • Another advantage concerns that Tear strength of the two-layer material web 2, 3.
  • the layer 3 with the essentially longitudinally aligned soft magnetic fibers 4 has a anisotropic tensile strength. In particular, the tensile strength is in the direction the orientation of the fibers 4 very low. Since the cellulose fibers in the first Layer 2, however, are oriented completely arbitrarily, the material web 2, 3 as such the preferred isotropic tear strength. Furthermore, very much long fibers are used and the fibers remain during the Manufacturing process stretched approximately.

Abstract

The method involves making the security elements from at least two layers. A first layer (2) of a cellulose material (6) is applied to a second layer (3) of cellulose material (5) whilst still moist. One of the two layers includes weak magnetic elements that emit a characteristic signal in the interrogation field of an article security system. The desired shape of the security element can be stamped or cut out of the two layers when dry. An Independent claim is also included for a security elements for electronic article security.

Description

Die Erfindung betrifft ein Verfahren zur Herstellung von Sicherungselementen für die elektronische Artikelsicherung, wobei die Sicherungselemente aus zumindest zwei Lagen gefertigt sind. Weiterhin bezieht sich die Erfindung auf ein nach dem erfindungsgemäßen Verfahren hergestelltes Sicherungselement.The invention relates to a method for producing securing elements for electronic article surveillance, the safety elements from at least two layers are made. The invention further relates to a securing element produced by the method according to the invention.

Aus der EP 0 340 034 B1 ist bereits ein Sicherungselement für die elektronische Artikelsicherung in Lagern und Kaufhäusern bekannt geworden, das Fasern aus einem Material mit hoher Permeabilität und geringer Koerzitivkraft enthält. Diese Fasern sind entweder in einem Papiersubstrat enthalten oder sie sind auf das Substrat aufgeklebt. Die Ausrichtung der Fasern in oder auf dem Substrat ist völlig willkürlich, wodurch die Wahrscheinlichkeit relativ groß ist, daß die Fasern mit anderen Fasern überlappen und mit diesen magnetisch koppeln. Hierdurch wird der magnetische Fluß der Fasern konzentriert und verstärkt, wodurch die Sicherungselemente, die in der Patentschrift beschrieben sind, unabhängig von ihrer Orientierung bezüglich des Abfragefeldes des elektronischen Artikelsicherungssystems detektiert werden können.From EP 0 340 034 B1 there is already a security element for the electronic Article security in warehouses and department stores has become known Fibers made of a material with high permeability and low coercive force contains. These fibers are either contained in a paper substrate or they are are glued to the substrate. The orientation of the fibers in or on the Substrate is completely arbitrary, which makes the probability relatively high that the fibers overlap with other fibers and magnetically with them couple. This concentrates the magnetic flux of the fibers and reinforced, thereby eliminating the securing elements described in the patent are described, regardless of their orientation with respect to the Query field of the electronic article surveillance system can be detected can.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zur Herstellung von kostengünstigen und verläßlich arbeitenden Sicherungselementen für die elektronische Artikelsicherung vorzuschlagen. The invention has for its object a method for producing inexpensive and reliable working security elements for the propose electronic article surveillance.

Die Aufgabe wird dadurch gelöst, daß eine erste Lage einer Zellulosemasse im noch feuchten Zustand auf eine zweite Lage einer Zellulosemasse aufgebracht wird, wobei einer der beiden Lagen weichmagnetische Elemente beigefügt werden, die im Abfragefeld eines Artikelsicherungssystems ein charakteristisches Signal aussenden, und daß aus den beiden Lagen im getrockneten Zustand die gewünschte Form der Sicherungselemente ausgestanzt oder ausgeschnitten wird.
Der Vorteil des erfindungsgemäßen Verfahrens ist vornehmlich darin zu sehen, daß die Lage mit den weichmagnetischen Fasern sehr dünn sein kann, da sie von der zweiten dickeren Lage gestützt wird. Die Lage mit den weichmagnetischen Fasern kann deshalb aus einer sehr verdünnten Papierfasersuspension hergestellt werden, was - wie nachfolgend noch näher beschrieben - enorme Vorteile hinsichtlich der nachfolgenden Ausrichtung und der verarbeitbaren Länge der weichmagnetischen Fasern in der noch feuchten Zellulosemasse der zweiten Lage mit sich bringt. Da beide Lagen darüber hinaus im noch feuchten Zustand aufeinander gebracht werden, haften sie nach dem Trocknen fest aneinander, ohne daß irgendwelche weiteren Schritte, z. B. eine Zusammenkleben beider Lagen, erforderlich wäre.The object is achieved in that a first layer of a cellulose mass is applied to a second layer of a cellulose mass while still moist, one of the two layers being added with soft magnetic elements which emit a characteristic signal in the query field of an article security system, and that from the two Layers in the dried state the desired shape of the securing elements is punched out or cut out.
The advantage of the method according to the invention can be seen primarily in the fact that the layer with the soft magnetic fibers can be very thin, since it is supported by the second thicker layer. The 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 with regard to the subsequent alignment and the processable length of the soft magnetic fibers in the still moist cellulose mass of the second layer. Since both layers are also brought together when still moist, they adhere firmly to one another after drying without any further steps, e.g. B. a sticking together of the two layers would be required.

Gemäß einer bevorzugten Weiterbildung des erfindungsgemäßen Verfahrens ist vorgesehen, daß die weichmagnetischen Elemente, bei denen es sich um Fasern mit sehr geringem Durchmesser handelt, im feuchten Zustand durch äußere Krafteinwirkung im wesentlichen in Längsrichtung der Materialbahn ausgerichtet werden. Die Ausrichtung erfolgt gemäß einer besonders günstigen Ausgestaltung des Verfahrens dadurch, daß oberhalb oder unterhalb der Lage aus Zellulosemasse, die die weichmagnetischen Fasern enthält, eine Vorrichtung vorgesehen ist, die ein Magnetfeld in Längsrichtung bzw. in Laufrichtung der Materialbahn erzeugt. Da sich die Zellulosemasse zu diesem Zeitpunkt noch in einem feuchten Zustand befindet, werden die Fasern unter dem Einfluß des Magnetfeldes in Laufrichtung der Materialbahn ausgerichtet. Alternativ kann eine Ausrichtung der Fasern in Längsrichtung der Materialbahn auch dadurch erzwungen werden, daß die Lage aus Zellulosemasse mit eingefügten weichmagnetischen Fasern beschleunigt wird; hierdurch werden die Fasern gleichfalls in Längsrichtung der Lage orientiert.According to a preferred development of the method according to the invention it is intended that the soft magnetic elements, which are Fibers with a very small diameter act through when wet external force essentially in the longitudinal direction of the material web be aligned. The alignment takes place according to a particularly favorable one Embodiment of the method in that above or below the Layer of cellulose mass, which contains the soft magnetic fibers, a Device is provided which a magnetic field in the longitudinal direction or in Running direction of the material web generated. Because the cellulose mass to this At the time it is still wet, the fibers are underneath the influence of the magnetic field aligned in the direction of travel of the material web. Alternatively, the fibers can be aligned in the longitudinal direction of the material web also be forced by the fact that the layer of cellulose mass with inserted soft magnetic fibers is accelerated; hereby the fibers are also oriented in the longitudinal direction of the layer.

Das nach dem Verfahren hergestellte Sicherungselement für die elektronische Artikelsicherung weist die folgenden Merkmale auf: Bei der ersten Lage handelt es sich um eine Zellulosemasse, bestehend aus Zellulosefasern. Die zweite Lage besteht gleichfalls aus einer Zellulosemasse, die sich aus einer Mischung von Zellulosefasern und weichmagnetischen Elementen zusammensetzt. Diese weichmagnetischen Elemente werden -wie bereits mehrfach erwähnt- in einem magnetischen Abfragefeld eines elektronischen Artikelsicherungssystems zur Aussendung eines charakteristischen Signals angeregt.The security element for the electronic manufactured by the process Article security has the following characteristics: Acting in the first position it is a cellulose mass consisting of cellulose fibers. The second Layer also consists of a cellulose mass made up of a mixture composed of cellulose fibers and soft magnetic elements. This Soft magnetic elements are - as already mentioned several times - in one magnetic query field of an electronic article surveillance system for Emission of a characteristic signal.

Wie bereits im Zusammenhang mit dem erfindungsgemäßen Verfahren beschrieben, handelt es sich bei den magnetischen Elementen um Fasern aus einem weichmagnetischen Material. Im Hinblick auf eine möglichst hohe Detektionsrate hat es sich als vorteilhaft herausgestellt, wenn die Länge der weichmagnetischen Fasern im Mittel größer ist als 2 cm.As already in connection with the method according to the invention described, the magnetic elements are made of fibers a soft magnetic material. With a view to the highest possible Detection rate has proven to be advantageous if the length of the Soft magnetic fibers are larger than 2 cm on average.

Eine bevorzugte Weiterbildung des erfindungsgemäßen Sicherungselements sieht vor, daß die Zellulosemasse der zweiten Lage maximal halb so viele weichmagnetische Fasern enthält wie Zellulosefasern. Insbesondere erlaubt es die erfindungsgemäße Schichtung von zwei Lagen aus Zellulosemasse übereinander, daß die Konzentration von Zellulosefasern, die in der Lage mit den weichmagnetischen Fasern enthalten ist, sehr niedrig ausfallen kann, ohne an Stabilität zu verlieren. Diese bevorzugte Ausgestaltung des erfindungsgemäßen Sicherungselements erlaubt, daß durch die extrem verdünnte Fasersuspension für die zweite Lage

  • a) relativ lange magnetische Fasern der Zellulosemasse zugemischt werden können,
  • b) die magnetischen Fasern gut dispersieren und nicht zu stark gekrümmt werden und
  • c) die magnetischen Fasern gegebenenfalls unter Einwirkung äußerer Kräfte leicht ausgerichtet werden können.
    • A preferred development of the securing element according to the invention provides that the cellulose mass of the second layer contains a maximum of half as many soft magnetic fibers as cellulose fibers. In particular, the layering of two layers of cellulose mass according to the invention allows the concentration of cellulose fibers contained in the layer with the soft magnetic fibers to be very low without losing stability. This preferred embodiment of the securing element according to the invention allows that by the extremely dilute fiber suspension for the second layer
  • a) relatively long magnetic fibers can be mixed into the cellulose mass,
  • b) the magnetic fibers disperse well and are not excessively curved and
  • c) the magnetic fibers can optionally be easily aligned under the influence of external forces.

    • Die Erfindung wird anhand der nachfolgenden Figuren näher erläutert. Es zeigt:

  • Fig. 1: eine schematische Darstellung einer Vorrichtung, mit der das erfindungsgemäße Verfahren durchgeführt wird, und
  • Fig. 2: eine perspektivische Darstellung eines nach dem erfindungsgemäßen Verfahren gefertigten Sicherungselements.
    • The invention is explained in more detail with reference to the following figures. It shows:
  • 1: a schematic representation of a device with which the method according to the invention is carried out, and
  • 2 shows a perspective illustration of a securing element produced by the method according to the invention.

    • Fig. 1 zeigt eine schematische Darstellung einer Vorrichtung, mit der das erfindungsgemäße Verfahren durchgeführt wird. Über eine Zuführvorrichtung 8 wird die Zellulosemasse 6 auf eine Auflagefläche 10 aufgebracht. Bei der Auflagefläche 10 handelt es sich z.B. um ein feinmaschiges endloses Netz, das über Umlenkrollen 14, 15 geführt ist. Durch die Maschen des Netzes 10 kann überschüssiges Wasser aus der Zellulosemasse 6 abgeführt werden.Fig. 1 shows a schematic representation of a device with which the the inventive method is carried out. Via a feed device 8 the cellulose mass 6 is applied to a support surface 10. In the Contact surface 10 is e.g. a fine-meshed endless network that is guided over pulleys 14, 15. Through the mesh of the network 10 can excess water can be removed from the cellulose mass 6.

    Mittels einer weiteren Zuführvorrichtung 7 wird eine zweite Zellulosemasse 5 auf eine zweite Auflagefläche 9 aufgebracht. Bei dieser Auflagefläche 9 kann es sich wiederum um ein feinmaschiges endloses Netz handeln, das über Umlenkwalzen 11, 12, 16 geführt wird. Unterhalb der Umlenkwalze 16 wird die Lage 3 aus Zellulosemasse 5 in noch feuchtem Zustand auf die erste Lage 2 aus Zellulosemasse 6 aufgebracht. Die Laufrichtung der Materialbahn, die aus den Lagen 2, 3 besteht, ist in der Zeichnung durch einen Pfeil angedeutet.By means of a further feed device 7, a second cellulose mass 5 applied to a second contact surface 9. With this contact surface 9 can it is in turn a fine-meshed endless network that over Deflection rollers 11, 12, 16 is guided. Below the deflection roller 16 Layer 3 from cellulose mass 5 while still moist on the first layer 2 applied from cellulose mass 6. The direction of travel of the web of material the layers 2, 3, is indicated in the drawing by an arrow.

    Während die Zellulosemasse 6 der ersten Lage 2 lediglich aus Zellulosefasern besteht, sind der Zellulosemasse 5 der zweiten Lage 3 weichmagnetische Fasern 4 beigemischt. Das Mischungsverhältnis beträgt maximal 50:50. Oberhalb der zweiten Lage 3, die die weichmagnetischen Fasern 4 enthält, ist eine Vorrichtung 14 angeordnet, die ein Magnetfeld in Laufrichtung der Materialbahn 2, 3 erzeugt. Wie bereits an vorhergehender Stelle beschrieben, weist die Zellulosemasse 5 der zweiten Lage lediglich eine verdünnte Konzentration an Zellulosefasern auf. Wird nun die noch feuchte Lage 3 unter der Vorrichtung 14 hindurchgeführt, haben die weichmagnetischen Fasern 4 genügend Bewegungsfreiheit, sich in Richtung eines wirkenden Magnetfeldes zu orientieren. Durch diese erzwungene Ausrichtung der magnetischen Fasern 4 läßt sich bei vorgegebener Konzentration von weichmagnetischen Fasern die Detektionswahrscheinlichkeit für die Sicherungselemente 1, die aus der Materialbahn 2, 3 hergestellt werden, erheblich erhöhen.While the cellulose mass 6 of the first layer 2 consists only of cellulose fibers there is, the cellulose mass 5 of the second layer 3 are soft magnetic Fibers 4 added. The mixing ratio is a maximum of 50:50. Above the second layer 3, which contains the soft magnetic fibers 4, is one Device 14 arranged which a magnetic field in the running direction of the material web 2, 3 generated. As already described in the previous section, the Cellulose mass 5 of the second layer only has a dilute concentration Cellulose fibers. Now the still moist layer 3 under the device 14 passed through, the soft magnetic fibers 4 have enough freedom of movement, to orientate itself in the direction of an acting magnetic field. This forced alignment of the magnetic fibers 4 allows given the concentration of soft magnetic fibers the detection probability for the securing elements 1, which are made of the material web 2, 3 produced, increase significantly.

    Wie bereits an vorhergehender Stelle erwähnt, kann eine Ausrichtung der weichmagnetischen Fasern 4 auch durch mechanische Einwirkung auf die noch feuchte Zellulosemasse 5, die die weichmagnetischen Fasern 4 enthält, erzwungen werden. Beispielsweise läßt sich eine Kraftkomponente in Laufrichtung der Materialbahn 3 einfach dadurch erreichen, daß die Materialbahn 3 in Laufrichtung beschleunigt wird. As mentioned earlier, an alignment of the soft magnetic fibers 4 also by mechanical action on the still moist cellulose mass 5, which contains the soft magnetic fibers 4, be enforced. For example, a force component in the direction of travel of the material web 3 simply by the material web 3 is accelerated in the direction of travel.

    In Fig. 2 ist eine perspektivische Darstellung eines nach dem erfindungsgemäßen Verfahren gefertigten Sicherungselements 1 zu sehen. Das Sicherungselement 1 besteht aus einer ersten Lage 2, bei der es sich um eine Zellulosemasse 6 handelt, die sich aus Zellulosefasern ohne weitere Beimischungen zusammensetzt. Die zweite Lage 3 besteht aus einem Gemisch einer Zellulosemasse 5, der weichmagnetische Fasern 4 beigefügt sind. Die Länge der weichmagnetischen Fasern 4 ist so bemessen, daß die Fasern 4 in einem elektronischen Artikelsicherungssystem mit hoher Wahrscheinlichkeit zur Aussendung eines charakteristischen Signals angeregt werden, so daß nachfolgend ein Alarm ausgelöst wird.2 is a perspective view of one according to the invention Process manufactured securing element 1 to see. The Fuse element 1 consists of a first layer 2, which is a Cellulose mass 6, which consists of cellulose fibers without further Blends. The second layer 3 consists of a mixture a cellulose mass 5, the soft magnetic fibers 4 are added. The The length of the soft magnetic fibers 4 is such that the fibers 4 in an electronic article surveillance system with high probability be excited to emit a characteristic signal, so that subsequently an alarm is triggered.

    Die weichmagnetischen Fasern 4 sind gemäß einer Weiterbildung der erfindungsgemäßen Sicherungselemente 1 im wesentlichen in eine Richtung orientiert. Dies bringt den Vorteil, daß selbst bei einer geringen Anzahl von Fasern 4 pro Sicherungselement 1 das charakteristische Signal des Sicherungselements problemlos von einem Artikelsicherungssystem detektiert werden kann.The soft magnetic fibers 4 are according to a development of the invention Securing elements 1 essentially in one direction oriented. This has the advantage that even with a small number of Fibers 4 per fuse element 1 the characteristic signal of Securing element easily detected by an article surveillance system can be.

    Zusammenfassend werden noch einmal die Vorteile der Sicherungselemente 1 erwähnt, die nach dem erfindungsgemäßen Verfahren hergestellt worden sind. Da zweilagiges Papier für die Herstellung der Sicherungselemente 1 verwendet wird, ist es möglich, die Konzentration an Zellulosefasern in der Lage 3, die die weichmagnetischen Fasern 4 enthält, sehr gering zu halten. Folglich kann auch die Konzentration der weichmagnetischen Fasern 4 gering ausfallen, wodurch die Herstellungskosten für ein erfindungsgemäßes Sicherungselement 1 entsprechend niedrig gehalten werden können. Ein weiterer Vorteil betrifft die Reißfestigkeit der zweilagigen Matrialbahn 2, 3. Die Lage 3 mit den im wesentlichen in Längsrichtung ausgerichteten weichmagnetischen Fasern 4 weist eine anisotrope Reißfestigkeit auf. Insbesondere ist die Reißfestigkeit in Richtung der Orientierung der Fasern 4 sehr gering. Da die Zellulosefasern in der ersten Lage 2 jedoch völlig willkürlich ausgerichtet sind, weist die Materialbahn 2, 3 als solche die bevorzugte isotrope Reißfestigkeit auf. Weiterhin können sehr lange Fasern verwendet werden, und die Fasern bleiben während des Herstellungsprozesses näherungsweise gestreckt. In summary, the advantages of the securing elements 1 are again shown mentioned, which have been prepared by the inventive method. Since two-ply paper is used for the production of the securing elements 1 , it is possible to adjust the concentration of cellulosic fibers 3, which the contains soft magnetic fibers 4 to keep very low. Hence, too the concentration of the soft magnetic fibers 4 turn out low, whereby the manufacturing costs for a fuse element 1 according to the invention accordingly can be kept low. Another advantage concerns that Tear strength of the two-layer material web 2, 3. The layer 3 with the essentially longitudinally aligned soft magnetic fibers 4 has a anisotropic tensile strength. In particular, the tensile strength is in the direction the orientation of the fibers 4 very low. Since the cellulose fibers in the first Layer 2, however, are oriented completely arbitrarily, the material web 2, 3 as such the preferred isotropic tear strength. Furthermore, very much long fibers are used and the fibers remain during the Manufacturing process stretched approximately.

    BezugszeichenlisteReference list

    11
    erfindungsgemäßes SicherungselementFuse element according to the invention
    22nd
    erste Lagefirst layer
    33rd
    zweite Lagesecond layer
    44th
    weichmagnetische Fasersoft magnetic fiber
    55
    Zellulosemasse für die zweite Lage mit weichmagnetischen ElementenCellulose mass for the second layer with soft magnetic Elements
    66
    Zellulosemasse für die erste LageCellulose mass for the first layer
    77
    ZuführvorrichtungFeeding device
    88th
    ZuführvorrichtungFeeding device
    99
    Auflagefläche für Zellulosemasse der zweiten LageSupport surface for cellulose mass of the second layer
    1010th
    Auflagefläche für Zellulosemasse der ersten LageSupport surface for cellulose mass of the first layer
    1111
    FührungsrolleLeadership role
    1212th
    FührungsrolleLeadership role
    1313
    GegendruckrolleCounter pressure roller
    1414
    FührungsrolleLeadership role
    1515
    FührungsrolleLeadership role
    1616
    FührungsrolleLeadership role

    Claims (8)

    Verfahren zur Herstellung von Sicherungselementen für die elektronische Artikelsicherung, wobei die Sicherungselemente aus zumindest zwei Lagen gefertigt sind,
    dadurch gekennzeichnet, daß eine erste Lage (2) einer Zellulosemasse (6) im noch feuchten Zustand auf eine zweite Lage (3) einer Zellulosemasse (5) aufgebracht wird, wobei einer der beiden Lagen (2; 3) weichmagnetische Elemente (4) beigefügt werden, die im Abfragefeld eines Artikelsicherungssystems ein charakteristisches Signal aussenden, und daß aus den beiden Lagen (2, 3) im getrockneten Zustand die gewünschte Form der Sicherungselemente (1) ausgestanzt oder ausgeschnitten wird.     Method for producing security elements for electronic article security, the security elements being made from at least two layers,
    characterized by that a first layer (2) of a cellulose mass (6) is applied to a second layer (3) of a cellulose mass (5) while still moist, one of the two layers (2; 3) being added to soft magnetic elements (4) which send a characteristic signal in the query field of an article surveillance system, and that the desired shape of the securing elements (1) is punched out or cut out of the two layers (2, 3) in the dried state.     Verfahren nach Anspruch 1,
    dadurch gekennzeichnet, daß die weichmagnetischen Elemente (4) im feuchten Zustand durch äußere Krafteinwirkung im wesentlichen in Längsrichtung der Materialbahn (2; 3; 2,3) ausgerichtet werden.     Method according to claim 1,
    characterized by that the soft magnetic elements (4) are aligned in the moist state by external force essentially in the longitudinal direction of the material web (2; 3; 2,3).     Verfahren nach Anspruch 2,
    dadurch gekennzeichnet, daß die weichmagnetischen Elemente (4) im feuchten Zustand durch ein in Längsrichtung der Materialbahn (2; 3; 2,3) wirkendes Magnetfeld im wesentlichen in Längsrichtung der Materialbahn (2; 3; 2,3) ausgerichtet werden.     Method according to claim 2,
    characterized by that the soft magnetic elements (4) in the moist state are aligned essentially in the longitudinal direction of the material web (2; 3; 2,3) by a magnetic field acting in the longitudinal direction of the material web (2; 3; 2,3).     Sicherungselement für die elektronische Artikelsicherung, hergestellt nach dem Verfahren nach Anspruch 1,
    dadurch gekennzeichnet, daß es sich bei der ersten Lage (2) um eine Zellulosemasse (6), bestehend aus Zellulosefasern, handelt und daß es sich bei der zweiten Lage (3) um eine Zellulosemasse (5), bestehend aus Zellulosefasern, handelt, in der weichmagnetische Elemente (4) enthalten sind, die in einem magnetischen Abfragefeld eines elektronischen Artikelsicherungssystems zur Aussendung eines charakteristischen Signals angeregt werden.     Securing element for electronic article surveillance, produced by the method according to claim 1,
    characterized by that it is in the first layer (2) is a cellulose mass (6) consisting of cellulose fibers, and that the second layer (3) is a cellulose mass (5) consisting of cellulose fibers, in which soft magnetic elements (4) are contained, which are excited in a magnetic query field of an electronic article surveillance system to emit a characteristic signal.     Sicherungselement nach Anspruch 4,
    dadurch gekennzeichnet, daß es sich bei den magnetischen Elementen (4) um Fasern aus weichmagnetischem Material handelt.     Securing element according to claim 4,
    characterized by that the magnetic elements (4) are fibers made of soft magnetic material.     Sicherungselement nach Anspruch 5,
    dadurch gekennzeichnet, daß die Länge der weichmagnetischen Fasern (4) im Mittel größer ist als 2 cm.     Securing element according to claim 5,
    characterized by that the length of the soft magnetic fibers (4) is greater than 2 cm on average.     Sicherungselement nach Anspruch 4,
    dadurch gekennzeichnet, daß die Zellulosemasse (5) der zweiten Lage (3) maximal halb so viele weichmagnetische Fasern (4) enthält wie Zellulosefasern.     Securing element according to claim 4,
    characterized by that the cellulose mass (5) of the second layer (3) contains a maximum of half as many soft magnetic fibers (4) as cellulose fibers.     Sicherungselement nach Anspruch 4,
    dadurch gekennzeichnet, daß die Zellulosemasse (5) zur Herstellung der zweiten Lage (3) eine geringere Konzentration an Zellulosefasern aufweist als die Zellulosemasse (6) erste Lage (2).     Securing element according to claim 4,
    characterized by that the cellulose mass (5) for producing the second layer (3) has a lower concentration of cellulose fibers than the cellulose mass (6) first layer (2).
    EP99117104A 1998-09-19 1999-08-31 Method for producing security elements for the electronic protection of articles Expired - Lifetime EP0987662B2 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE19843062 1998-09-19
    DE19843062A DE19843062A1 (en) 1998-09-19 1998-09-19 Process for the production of security elements for electronic article security

    Publications (4)

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

    Family

    ID=7881591

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP99117104A Expired - Lifetime EP0987662B2 (en) 1998-09-19 1999-08-31 Method for producing security elements for the electronic protection of articles

    Country Status (9)

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

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    FR2861101B1 (en) * 2003-10-15 2007-06-15 Arjo Wiggins MULTIJET SAFETY PAPER
    US8628839B2 (en) * 2005-12-26 2014-01-14 Fuji Xerox Co., Ltd. Recording medium
    JP4847191B2 (en) * 2006-04-14 2011-12-28 富士ゼロックス株式会社 Recording sheet
    JP5073324B2 (en) * 2007-03-12 2012-11-14 富士ゼロックス株式会社 Recording sheet
    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

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    CH696744A5 (en) * 2003-07-07 2007-11-15 Landqart Security paper and method for its production.

    Also Published As

    Publication number Publication date
    US20020127940A1 (en) 2002-09-12
    PL188022B1 (en) 2004-11-30
    US6585857B2 (en) 2003-07-01
    DE19843062A1 (en) 2000-03-23
    ES2209301T5 (en) 2007-11-16
    HUP9903175A3 (en) 2001-03-28
    EP0987662A3 (en) 2001-03-21
    EP0987662B1 (en) 2003-10-15
    HU9903175D0 (en) 1999-11-29
    CA2282808C (en) 2004-08-17
    DE59907357D1 (en) 2003-11-20
    ES2209301T3 (en) 2004-06-16
    PL335474A1 (en) 2000-03-27
    DK0987662T3 (en) 2004-01-19
    HUP9903175A2 (en) 2000-06-28
    ATE252262T1 (en) 2003-11-15
    CA2282808A1 (en) 2000-03-19
    EP0987662B2 (en) 2007-05-09

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