EP0698561A1 - Packaging wrapper made of a tube of heat shrinkable plastics material - Google Patents

Packaging wrapper made of a tube of heat shrinkable plastics material Download PDF

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Publication number
EP0698561A1
EP0698561A1 EP95401902A EP95401902A EP0698561A1 EP 0698561 A1 EP0698561 A1 EP 0698561A1 EP 95401902 A EP95401902 A EP 95401902A EP 95401902 A EP95401902 A EP 95401902A EP 0698561 A1 EP0698561 A1 EP 0698561A1
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EP
European Patent Office
Prior art keywords
sleeve
filament
packaging envelope
metallic filament
envelope according
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP95401902A
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German (de)
French (fr)
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EP0698561B1 (en
Inventor
Eric Fresnel
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Sleever International Co SA
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Sleever International Co SA
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Publication date
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/002—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers in shrink films
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2211/00—Anti-theft means

Definitions

  • the invention relates to the field of packaging of objects, in particular of objects of current use or of large consumption sold in specialized stores and / or of large distribution.
  • Envelopes for packaging objects are known which are made from a sleeve of heat-shrinkable plastic essentially oriented in the transverse direction and comprising a preferred cutting line.
  • the preferential cutting line produced for example in the form of microperforations, precuts or specific cuts made in the wall of the sleeve, constitutes in addition to a means of opening the envelope, a means indicating d break-in to assure the consumer that no one has been able to use the item before
  • This pre-cut line can be associated with a gripping tab, or even be associated with a tear strip allowing the tear-off opening of the wall constituting the sleeve, by virtue of a traction exerted on a gripping end of said strip.
  • the precut "line” is represented by the edge of the tear strip.
  • labels are offered flexible or pads (pellets), which are self-adhesive (with an adhesive strong enough to resist untimely tearing), and which carry a metallic filament wound in a spiral or arranged in a straight line, this filament being designed to be detected by an electronic surveillance system operating on a magnetic detection principle.
  • the user does not generally deactivate the detection means, which limits the use to objects which are not worn or transported later. by the user (for example, a cosmetic product placed in a bag after its purchase would later trigger the alarm during a subsequent passage in front of the detectors or gates).
  • FR-A-2,605,747 which describes a process consisting in permanently integrating into an object (cassette, CD disc) a resonant flat circuit composed of a coil and a capacitor, which circuit is used inside a gantry emitting an electromagnetic wave at radio frequency.
  • FR-A-2 358 713 describes an anti-theft marker made of ferromagnetic material fixed on the object to be protected, either by providing a layer of adhesive on the marker, or by superimposing a printed label.
  • WO-A-85 02285 describes an alarm system using a tape in two overlapping strips sandwiched between one face of the object and a protective label, the two strips having different magnetic characteristics to neutralize the alarm by magnetization of a strip, thanks to a barcode reader equipped for this purpose with a fork whose branches end in a magnet.
  • the invention aims precisely to solve this problem, by devising a mode of integration of a detection means in a package which provides optimal discretion, while benefiting from the sensitivity of the sophisticated electronic surveillance systems currently available on the market.
  • an object packaging envelope produced from a sleeve of heat-shrinkable plastic essentially oriented in the transverse direction and comprising a preferential cutting line, characterized in that it comprises, on the internal wall of the sleeve, a metallic filament extending at a distance from the preferred cutting line to remain on the envelope after cutting thereof, said filament being arranged to constitute an antenna for an electronic system of surveillance operating on a magnetic detection principle.
  • the sleeve maintains the metallic filament in place, while preventing untimely tearing of said filament due to the lack of grip for a nail or a tool, if it is natural that the filament has been spotted.
  • the metallic filament In the case of a packaging envelope in which the preferential cutting line is arranged along a generatrix of the sleeve, it is advantageous for the metallic filament to be arranged essentially along another generatrix of said sleeve.
  • the metal filament has a length close to the height of the sleeve.
  • the sleeve has an inner flap resulting from its formation by covering and sealing from a flat sheet, which flap extends along a generatrix of said sleeve, it may be advantageous that the metal filament is disposed at the level of the inner flap, between the two wall thicknesses of the sleeve.
  • the metal filament is arranged essentially along another peripheral line of the sleeve.
  • the metallic filament can be glued directly against the internal wall of the sleeve, or, as a variant, be secured to a support strip which is glued against the internal wall of the sleeve. In this case, it could be a self-adhesive backing strip, or a backing strip which is glued with a heat-reactivatable adhesive.
  • Figures 1 to 4 illustrate various examples envelopes for packaging objects made from a sleeve of heat-shrinkable plastic essentially oriented in the transverse direction.
  • the sleeve is referenced 10, and it has a preferential cutting line 11, which can be produced in the form of microperforations, primers, or specific cuts, made in the wall of the sleeve.
  • the object A is a cylindrical bottle coated with a heat-shrinkable sleeve 10 enveloping the transition zone between the body of the bottle and its cap, and a grip tab 12 is provided at one end of the preferred line of cutout 11, tab on which it suffices to pull to cause the opening of the sleeve and the removal thereof in order to use the object.
  • FIG. 1 illustrate various examples envelopes for packaging objects made from a sleeve of heat-shrinkable plastic essentially oriented in the transverse direction.
  • the sleeve is referenced 10, and it has a preferential cutting line 11, which can be produced in the
  • a tear strip 13 is provided at the level of a preferred double cutting line 11, said strip ending in a grip appendage 14 on which it suffices to pull to cause the opening of the sleeve, and the removal of it.
  • Figure 3 illustrates a sleeve of the same type, which is retracted on an object of non-cylindrical shape.
  • FIG. 4 finally illustrates a sleeve retracted on a non-cylindrical object, the preferred cutting line of which, here associated with a tear strip, is arranged along a peripheral line of the sleeve, unlike the examples illustrated in FIGS. 1, 2 , 3 in which the preferential cutting line was arranged along a generatrix of said sleeve.
  • the packaging envelope 10 comprises, on the internal wall thereof, a metallic filament 16 extending at a distance from the preferred cutting line 11 to remain on the envelope after cutting it, said filament being arranged to constitute an antenna for an electronic monitoring system operating on a principle of magnetic detection.
  • the metallic filament 16 is arranged essentially along another generatrix of the sleeve 10. It will be noted that the metallic filament has here a length close to the height of the sleeve 10. As a variant, as illustrated in FIG. 4, for which the preferential cutting line 11 is disposed along a peripheral line of the sleeve 10, the metal filament 16 is then disposed essentially along another peripheral line of the sleeve 10.
  • FIG. 5 shows part of the wall of the sleeve 10 with, visible through transparency, the metallic filament 16 which is here secured to a support strip 15. Also shown in this figure is a tear strip 13 provided in the vicinity of the preferential double cutting line 11, as a reminder that the metal filament 16 is then completely separated from such a tear strip 13.
  • the external wall of the sleeve is denoted 10a, and its internal wall 10b.
  • FIG. 6a makes it possible to distinguish the metallic filament 16 which is integral with the support strip 15, being here embedded therein, said strip being coated on one face with an adequate adhesive 17, which allows its bonding against the internal wall 10b of the sleeve 10, as illustrated in FIG. 6b.
  • the possible tear strip 13 is likewise coated on one face with a suitable adhesive 18, for its bonding against the same internal wall of the sleeve 10.
  • Figures 7a, 7b illustrate another variant in which the metal filament 16 is directly bonded against one face of the support strip 15, this face as well as the filament being coated with adhesive 17 allowing the assembly to be fixed against the internal wall 10b of the sleeve 10.
  • the support strip 15 may be self-adhesive, or alternatively be coated on one side with a heat-reactivatable adhesive.
  • Figures 8a, 8b illustrate yet another variant in which the metal filament 16 is directly bonded by the associated adhesive 17 against the internal wall 10b of the sleeve 10.
  • This variant is however more difficult to implement, given the fineness metallic filament, so that in practice the variants previously illustrated in which the metallic filament is secured to an adhesive support strip.
  • the section of Figure 9 shows, flat, the heat-shrinkable sleeve, which is here of the type having an inner flap 19 resulting from its formation by covering and sealing from a flat sheet, which flap extends along a generatrix of the sleeve 10. It is then advantageous to provide that the metallic filament 16 is disposed at the level of the inner flap 19, between the two wall thicknesses of the sleeve 10, said filament being or not associated with a support strip.
  • the adhesive 17 then used at the inner flap serves both to hold the metal filament, and to seal the two edges of the sleeve.
  • the tear strip 13 with the preferential double cutting line 11, and it can be seen that the metal filament 16 is again completely separated from the tear strip 13.
  • such a detection means integrated in a packaging envelope can facilitate the management of the packaged products. Indeed, we can take advantage of the fact that the resonance wavelength directly depends on the length of the metallic filament used, by organizing classifications into groups of products or distributors thanks to a choice of predetermined different filament lengths, groups each of which is immediately recognizable by the resonance wavelength associated therewith. We thus obtain a real traceability of the packaged products, and this without in any way complicating the packaging of these products.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Burglar Alarm Systems (AREA)
  • Wrappers (AREA)

Abstract

The envelope includes a sleeve (10) which is formed from a heat-shrinking plastic material. The heat-shrinking effect is orientated in the transverse sense, and the sleeve includes a slit line (11). A metallic filament (16) is formed on the inner surface of the envelope and serves as an antenna for an electronic surveillance system operating with an RF detection system. The slit line (11) lies on a line defining the cylindrical shape of the outer surface, while the antenna filament lies on another line which also defines the shape of the outer surface.

Description

L'invention concerne le domaine de l'emballage d'objets, en particulier d'objets d'usage courant ou de grande consommation vendus dans des magasins spécialisés et/ou de grande distribution.The invention relates to the field of packaging of objects, in particular of objects of current use or of large consumption sold in specialized stores and / or of large distribution.

On connaît des enveloppes d'emballage d'objets réalisées à partir d'un manchon en matière plastique thermorétractable essentiellement orientée dans le sens transversal et comportant une ligne préférentielle de découpe.Envelopes for packaging objects are known which are made from a sleeve of heat-shrinkable plastic essentially oriented in the transverse direction and comprising a preferred cutting line.

La ligne préférentielle de découpe, réalisée par exemple sous la forme de microperforations, d'amorces de prédécoupe ou de découpes spécifiques pratiquées dans la paroi du manchon, constitue en plus d'un moyen d'ouverture de l'enveloppe, un moyen indicateur d'effraction permettant de garantir au consommateur que personne n'a pu utiliser l'objet auparavant. Cette ligne de prédécoupe peut être associée à une patte de préhension, ou encore être associée à une bande d'arrachage permettant l'ouverture par déchirure de la paroi constitutive du manchon, grâce à une traction exercée sur une extrémité de préhension de ladite bande. Dans ce dernier cas, la "ligne" de prédécoupe est représentée par le bord de la bande d'arrachage.The preferential cutting line, produced for example in the form of microperforations, precuts or specific cuts made in the wall of the sleeve, constitutes in addition to a means of opening the envelope, a means indicating d break-in to assure the consumer that no one has been able to use the item before This pre-cut line can be associated with a gripping tab, or even be associated with a tear strip allowing the tear-off opening of the wall constituting the sleeve, by virtue of a traction exerted on a gripping end of said strip. In the latter case, the precut "line" is represented by the edge of the tear strip.

On cherche par ailleurs à lutter contre le vol à l'étalage ou démarque inconnue, qui constitue un fléau représentant un manque à gagner se chiffrant à des sommes considérables.We are also trying to combat shoplifting or shrinkage unknown, which constitutes a plague representing a shortfall amounting to considerable sums.

Dans le domaine de l'habillement, on propose ainsi divers types de plaquettes ou étiquettes agrafées dont le système d'agrafage doit être désactivé à la caisse par un appareil spécial, ces plaquettes ou étiquettes déclenchant une alarme en cas de passage au niveau d'un détecteur installé devant la caisse ou près de la sortie du magasin.In the field of clothing, various types of stapled labels or tags are therefore proposed, the stapling system of which must be deactivated at the checkout by a special device, these plates or labels setting off an alarm in the event of passing to the level of a detector installed in front of the cash register or near the store exit.

Pour les articles rigides, du type boîtes, pochettes, et objets analogues, on propose des étiquettes souples ou des plaquettes (pastilles), qui sont auto-adhésives (avec un adhésif suffisamment puissant pour résister à un arrachage intempestif), et qui portent un filament métallique enroulé en spirale ou disposé en ligne droite, ce filament étant conçu pour être détecté par un système électronique de surveillance fonctionnant sur un principe de détection magnétique.For rigid items, such as boxes, pouches, and the like, labels are offered flexible or pads (pellets), which are self-adhesive (with an adhesive strong enough to resist untimely tearing), and which carry a metallic filament wound in a spiral or arranged in a straight line, this filament being designed to be detected by an electronic surveillance system operating on a magnetic detection principle.

Contrairement aux plaquettes ou étiquettes agrafées, ces moyens collés sur l'objet ou sur son emballage ne sont pas désactivables, de sorte que la détection se fait seulement par passage devant des détecteurs ou portillons spéciaux devant lesquels doit passer le client. Ils doivent de ce fait être aussi discrets que possible pour ne pas attirer l'attention d'un client indélicat qui tenterait un arrachage, notamment avec des étiquettes transparentes ou porteuses de code-barre.Unlike stapled plates or labels, these means stuck on the object or on its packaging cannot be deactivated, so that detection is only done by passing in front of special detectors or gates in front of which the customer must pass. They must therefore be as discreet as possible so as not to attract the attention of an unscrupulous customer who would attempt a grubbing, in particular with transparent labels or carrying barcode.

De plus, si la plaquette ou l'étiquette auto-adhésive est collée directement sur le produit, l'utilisateur ne désactive en général pas le moyen de détection, ce qui limite l'utilisation à des objets qui ne sont pas portés ou transportés ultérieurement par l'utilisateur (par exemple, un produit cosmétique mis dans un sac après son achat déclencherait ultérieurement l'alarme lors d'un passage ultérieur devant les détecteurs ou portillons).In addition, if the plate or the self-adhesive label is stuck directly on the product, the user does not generally deactivate the detection means, which limits the use to objects which are not worn or transported later. by the user (for example, a cosmetic product placed in a bag after its purchase would later trigger the alarm during a subsequent passage in front of the detectors or gates).

On retrouve le même inconvénient avec les systèmes prévoyant de noyer le filament métallique dans la masse de l'objet (ceci a été par exemple proposé pour des bouteilles de verre), avec en outre la complexité qui en résulte pour la fabrication.We find the same drawback with systems providing for drowning the metallic filament in the mass of the object (this has been proposed for example for glass bottles), with the added complexity that results from this for manufacturing.

On pourra aussi se référer au FR-A-2.605.747 qui décrit un procédé consistant à intégrer à demeure dans un objet (cassette, disque CD) un circuit plat résonant composé d'une bobine et d'un condensateur, lequel circuit est utilisé à l'intérieur d'un portique émettant une onde électromagnétique à radio-fréquence.We can also refer to FR-A-2,605,747 which describes a process consisting in permanently integrating into an object (cassette, CD disc) a resonant flat circuit composed of a coil and a capacitor, which circuit is used inside a gantry emitting an electromagnetic wave at radio frequency.

L'état de la technique est également illustré par les documents FR-A-2 358 713 et WO-A-85 02285. Le FR-A-2 358 713 décrit un marqueur antivol en matière ferromagnétique fixé sur l'objet à protéger, soit en prévoyant sur le marqueur une couche d'adhésif, soit en superposant une étiquette imprimée. Le WO-A-85 02285 décrit quant à lui un système d'alarme utilisant un ruban en deux bandes superposées pris en sandwich entre une face de l'objet et une étiquette protectrice, les deux bandes ayant des caractéristiques magnétiques différentes pour neutraliser l'alarme par magnétisation d'une bande, grâce à un lecteur de code-barres équipé à cet effet d'une fourche dont les branches se terminent par un aimant.The state of the art is also illustrated by documents FR-A-2 358 713 and WO-A-85 02285. FR-A-2 358 713 describes an anti-theft marker made of ferromagnetic material fixed on the object to be protected, either by providing a layer of adhesive on the marker, or by superimposing a printed label. WO-A-85 02285 describes an alarm system using a tape in two overlapping strips sandwiched between one face of the object and a protective label, the two strips having different magnetic characteristics to neutralize the alarm by magnetization of a strip, thanks to a barcode reader equipped for this purpose with a fork whose branches end in a magnet.

Si l'on veut être certain que l'utilisateur désactive (sans le savoir) le moyen de détection, il faut alors le disposer sur l'emballage de l'objet. Cependant ceci suppose un mode d'intégration aussi discret que possible, ce qui est presque impossible avec des emballages transparents en matière plastique.If one wants to be certain that the user deactivates (without knowing it) the detection means, it must then be placed on the packaging of the object. However, this assumes a mode of integration as discreet as possible, which is almost impossible with transparent plastic packaging.

L'invention vise précisément à résoudre ce problème, en concevant un mode d'intégration d'un moyen de détection dans un emballage qui procure une discrétion optimale, tout en bénéficiant de la sensibilité des systèmes électroniques de surveillance sophistiqués actuellement disponibles sur le marché.The invention aims precisely to solve this problem, by devising a mode of integration of a detection means in a package which provides optimal discretion, while benefiting from the sensitivity of the sophisticated electronic surveillance systems currently available on the market.

Ce problème est résolu conformément à l'invention grâce à une enveloppe d'emballage d'objet, réalisée à partir d'un manchon en matière plastique thermorétractable essentiellement orientée dans le sens transversal et comportant une ligne préférentielle de découpe, caractérisée en ce qu'elle comporte, sur la paroi interne du manchon, un filament métallique s'étendant à distance de la ligne préférentielle de découpe pour rester sur l'enveloppe après découpe de celle-ci, ledit filament étant agencé pour constituer une antenne pour un système électronique de surveillance fonctionnant sur un principe de détection magnétique.This problem is solved in accordance with the invention by means of an object packaging envelope, produced from a sleeve of heat-shrinkable plastic essentially oriented in the transverse direction and comprising a preferential cutting line, characterized in that it comprises, on the internal wall of the sleeve, a metallic filament extending at a distance from the preferred cutting line to remain on the envelope after cutting thereof, said filament being arranged to constitute an antenna for an electronic system of surveillance operating on a magnetic detection principle.

Il convient de noter qu'une telle antenne fonctionne par résonance, et non par des ondes électromagnétiques à radio-fréquence, et que ce moyen n'est pas désactivable.It should be noted that such an antenna operates by resonance, and not by radio frequency electromagnetic waves, and that this means cannot be deactivated.

Une telle enveloppe à antenne intégrée permet ainsi de résoudre de façon élégante le problème de la désactivation par l'utilisateur de l'objet acheté. Le manchon assure le maintien en place du filament métallique, tout en empêchant un arrachage intempestif dudit filament du fait de l'absence de prise pour un ongle ou un outil, si tant est naturellement que le filament ait été repéré.Such an envelope with integrated antenna thus makes it possible to elegantly resolve the problem of the deactivation by the user of the purchased object. The sleeve maintains the metallic filament in place, while preventing untimely tearing of said filament due to the lack of grip for a nail or a tool, if it is natural that the filament has been spotted.

Lorsqu'il s'agit d'une enveloppe d'emballage dans laquelle la ligne préférentielle de découpe est disposée suivant une génératrice du manchon, il est avantageux que le filament métallique soit disposé essentiellement suivant une autre génératrice dudit manchon. En particulier, le filament métallique a une longueur proche de la hauteur du manchon.In the case of a packaging envelope in which the preferential cutting line is arranged along a generatrix of the sleeve, it is advantageous for the metallic filament to be arranged essentially along another generatrix of said sleeve. In particular, the metal filament has a length close to the height of the sleeve.

En outre, si le manchon présente un rabat intérieur résultant de sa formation par recouvrement et scellage à partir d'une feuille plate, lequel rabat d'étend suivant une génératrice dudit manchon, il peut s'avérer avantageux que le filament métallique soit disposé au niveau du rabat intérieur, entre les deux épaisseurs de paroi du manchon.In addition, if the sleeve has an inner flap resulting from its formation by covering and sealing from a flat sheet, which flap extends along a generatrix of said sleeve, it may be advantageous that the metal filament is disposed at the level of the inner flap, between the two wall thicknesses of the sleeve.

Lorsqu'il s'agit d'une enveloppe d'emballage dans laquelle la ligne préférentielle de découpe est disposée selon une ligne périphérique du manchon, il est intéressant que le filament métallique soit disposé essentiellement suivant une autre ligne périphérique du manchon.In the case of a packaging envelope in which the preferential cutting line is arranged along a peripheral line of the sleeve, it is advantageous for the metal filament to be arranged essentially along another peripheral line of the sleeve.

Le filament métallique peut être collé directement contre la paroi interne du manchon, ou, en variante, être solidaire d'une bande-support qui est collée contre la paroi interne du manchon. Dans ce cas, il pourra s'agir d'une bande-support auto-adhésive, ou encore d'une bande support qui est collée par un adhésif réactivable à la chaleur.The metallic filament can be glued directly against the internal wall of the sleeve, or, as a variant, be secured to a support strip which is glued against the internal wall of the sleeve. In this case, it could be a self-adhesive backing strip, or a backing strip which is glued with a heat-reactivatable adhesive.

Enfin, lorsqu'il s'agit d'une enveloppe d'emballage dans laquelle une bande d'arrachage est prévue au voisinage de la ligne préférentielle de découpe, le filament métallique sera totalement disjoint de la bande d'arrachage.Finally, when it is a packaging envelope in which a tear strip is provided in the vicinity of the preferred cutting line, the metal filament will be completely separated from the tear strip.

D'autres caractéristiques et avantages de l'invention apparaîtront plus clairement à la lumière de la description qui va suivre et des dessins annexés, concernant un mode de réalisation particulier, en référence aux figures où :

  • les figures 1 à 4 illustrent divers objets dont l'enveloppe d'emballage à ligne préférentielle de découpe est équipée d'un filament métallique conformément à l'invention ;
  • la figure 5 est une vue à plus grande échelle d'une partie de la paroi du manchon constitutif de l'enveloppe, montrant un filament métallique solidaire d'une bande-support adhésive, l'enveloppe comportant par ailleurs une bande d'arrachage associée à la ligne préférentielle de découpe ;
  • les figures 6a, 7a, 8a sont des vues en coupe (selon la ligne X-X de la figure 5) illustrant (avec une échelle très agrandie pour plus de clarté) divers modes d'exécution du collage du filament métallique, avant sa liaison à la paroi interne du manchon constitutif de l'emballage, et les figures 6b, 7b, 8b sont les vues correspondantes en position assemblée ;
  • la figure 9 est une coupe transversale du manchon thermorétractable, conformément à une variante dans laquelle le filament métallique est disposé au niveau du rabat intérieur du manchon.
Other characteristics and advantages of the invention will appear more clearly in the light of the description which follows and of the appended drawings, relating to a particular embodiment, with reference to the figures in which:
  • Figures 1 to 4 illustrate various objects whose packaging envelope with preferential cutting line is equipped with a metal filament according to the invention;
  • FIG. 5 is an enlarged view of part of the wall of the sleeve constituting the envelope, showing a metallic filament secured to an adhesive support strip, the envelope also comprising an associated tear strip to the preferential cutting line;
  • Figures 6a, 7a, 8a are sectional views (along line XX of Figure 5) illustrating (with a very enlarged scale for clarity) various modes of carrying out the bonding of the metal filament, before its connection to the internal wall of the sleeve constituting the packaging, and FIGS. 6b, 7b, 8b are the corresponding views in the assembled position;
  • Figure 9 is a cross section of the heat shrinkable sleeve, according to a variant in which the metal filament is disposed at the inner flap of the sleeve.

Les figures 1 à 4 illustrent divers exemples d'enveloppes d'emballage d'objet réalisées à partir d'un manchon en matière plastique thermorétractable essentiellement orientée dans le sens transversal. Le manchon est référencé 10, et il comporte une ligne préférentielle de découpe 11, qui peut être réalisée sous la forme de microperforations, d'amorces de prédécoupe, ou de découpes spécifiques, pratiquées dans la paroi du manchon. Sur la figure 1, l'objet A est un flacon cylindrique revêtu d'un manchon thermorétractable 10 enveloppant la zone de transition entre le corps du flacon et son capuchon, et une patte de préhension 12 est prévue à une extrémité de la ligne préférentielle de découpe 11, patte sur laquelle il suffit de tirer pour provoquer l'ouverture du manchon et l'enlèvement de celui-ci afin d'utiliser l'objet. Sur la figure 2, une bande d'arrachage 13 est prévue au niveau d'une double ligne préférentielle de découpe 11, ladite bande se terminant par un appendice de préhension 14 sur lequel il suffit de tirer pour provoquer l'ouverture du manchon, et l'enlèvement de celui-ci. La figure 3 illustre un manchon du même type, qui est rétracté sur un objet de forme non cylindrique. La figure 4 illustre enfin un manchon rétracté sur un objet non cylindrique, dont la ligne préférentielle de découpe, ici associée à une bande d'arrachage, est disposée suivant une ligne périphérique du manchon, à la différence des exemples illustrés aux figures 1, 2, 3 dans lesquels la ligne préférentielle de découpe était disposée suivant une génératrice dudit manchon.Figures 1 to 4 illustrate various examples envelopes for packaging objects made from a sleeve of heat-shrinkable plastic essentially oriented in the transverse direction. The sleeve is referenced 10, and it has a preferential cutting line 11, which can be produced in the form of microperforations, primers, or specific cuts, made in the wall of the sleeve. In FIG. 1, the object A is a cylindrical bottle coated with a heat-shrinkable sleeve 10 enveloping the transition zone between the body of the bottle and its cap, and a grip tab 12 is provided at one end of the preferred line of cutout 11, tab on which it suffices to pull to cause the opening of the sleeve and the removal thereof in order to use the object. In FIG. 2, a tear strip 13 is provided at the level of a preferred double cutting line 11, said strip ending in a grip appendage 14 on which it suffices to pull to cause the opening of the sleeve, and the removal of it. Figure 3 illustrates a sleeve of the same type, which is retracted on an object of non-cylindrical shape. FIG. 4 finally illustrates a sleeve retracted on a non-cylindrical object, the preferred cutting line of which, here associated with a tear strip, is arranged along a peripheral line of the sleeve, unlike the examples illustrated in FIGS. 1, 2 , 3 in which the preferential cutting line was arranged along a generatrix of said sleeve.

Conformément à une caractéristique essentielle de l'invention, l'enveloppe d'emballage 10 comporte, sur la paroi interne de celle-ci, un filament métallique 16 s'étendant à distance de la ligne préférentielle de découpe 11 pour rester sur l'enveloppe après découpe de celle-ci, ledit filament étant agencé pour constituer une antenne pour un système électronique de surveillance fonctionnant sur un principe de détection magnétique.In accordance with an essential characteristic of the invention, the packaging envelope 10 comprises, on the internal wall thereof, a metallic filament 16 extending at a distance from the preferred cutting line 11 to remain on the envelope after cutting it, said filament being arranged to constitute an antenna for an electronic monitoring system operating on a principle of magnetic detection.

Comme cela est illustré sur les figures 1 à 3, pour lesquelles la ligne préférentielle de découpe 11 est disposée suivant une génératrice du manchon 10, le filament métallique 16 est disposé essentiellement suivant une autre génératrice du manchon 10. On notera que le filament métallique a ici une longueur proche de la hauteur du manchon 10. En variante, comme cela est illustré sur la figure 4, pour laquelle la ligne préférentielle de découpe 11 est disposée suivant une ligne périphérique du manchon 10, le filament métallique 16 est alors disposé essentiellement suivant une autre ligne périphérique du manchon 10.As illustrated in FIGS. 1 to 3, for which the preferred cutting line 11 is arranged along a generatrix of the sleeve 10, the metallic filament 16 is arranged essentially along another generatrix of the sleeve 10. It will be noted that the metallic filament has here a length close to the height of the sleeve 10. As a variant, as illustrated in FIG. 4, for which the preferential cutting line 11 is disposed along a peripheral line of the sleeve 10, the metal filament 16 is then disposed essentially along another peripheral line of the sleeve 10.

Dans tous les cas, lorsque l'utilisateur provoque l'ouverture de l'enveloppe par découpe suivant la ligne préférentielle de découpe, et le dégagement de celle-ci hors de l'objet, on est tout à fait certain que le filament métallique 16 formant antenne a bien été détaché de l'objet.In all cases, when the user causes the opening of the envelope by cutting along the preferred cutting line, and the release of the latter out of the object, it is quite certain that the metallic filament 16 forming an antenna has been detached from the object.

La figure 5 montre une partie de la paroi du manchon 10 avec, visible par transparence, le filament métallique 16 qui est ici solidaire d'une bande-support 15. On a également représenté sur cette figure une bande d'arrachage 13 prévue au voisinage de la double ligne préférentielle de découpe 11, pour bien rappeler que le filament métallique 16 est alors totalement disjoint d'une telle bande d'arrachage 13. On a noté 10a la paroi externe du manchon, et 10b sa paroi interne.FIG. 5 shows part of the wall of the sleeve 10 with, visible through transparency, the metallic filament 16 which is here secured to a support strip 15. Also shown in this figure is a tear strip 13 provided in the vicinity of the preferential double cutting line 11, as a reminder that the metal filament 16 is then completely separated from such a tear strip 13. The external wall of the sleeve is denoted 10a, and its internal wall 10b.

La coupe de la figure 6a permet de distinguer le filament métallique 16 qui est solidaire de la bande-support 15, en étant ici noyé dans celle-ci, ladite bande étant revêtue sur une face d'un adhésif adéquat 17, ce qui permet son collage contre la paroi interne 10b du manchon 10, comme illustré sur la figure 6b. L'éventuelle bande d'arrachage 13 est de la même façon revêtue sur une face d'un adhésif adéquat 18, pour son collage contre la même paroi interne du manchon 10.The section of FIG. 6a makes it possible to distinguish the metallic filament 16 which is integral with the support strip 15, being here embedded therein, said strip being coated on one face with an adequate adhesive 17, which allows its bonding against the internal wall 10b of the sleeve 10, as illustrated in FIG. 6b. The possible tear strip 13 is likewise coated on one face with a suitable adhesive 18, for its bonding against the same internal wall of the sleeve 10.

Les figures 7a, 7b, illustrent une autre variante dans laquelle le filament métallique 16 est directement collé contre une face de la bande-support 15, cette face ainsi que le filament étant revêtus de l'adhésif 17 permettant la fixation de l'ensemble contre la paroi interne 10b du manchon 10.Figures 7a, 7b illustrate another variant in which the metal filament 16 is directly bonded against one face of the support strip 15, this face as well as the filament being coated with adhesive 17 allowing the assembly to be fixed against the internal wall 10b of the sleeve 10.

La bande-support 15 pourra être auto-adhésive, ou en variante être revêtue sur une face d'un adhésif réactivable à la chaleur.The support strip 15 may be self-adhesive, or alternatively be coated on one side with a heat-reactivatable adhesive.

Les figures 8a, 8b illustrent encore une autre variante dans laquelle le filament métallique 16 est collé directement par l'adhésif associé 17 contre la paroi interne 10b du manchon 10. Cette variante est cependant plus délicate à mettre en oeuvre, compte tenu de la finesse du filament métallique, de sorte que l'on préférera dans la pratique les variantes précédemment illustrées dans lesquelles le filament métallique est solidaire d'une bande-support adhésive.Figures 8a, 8b illustrate yet another variant in which the metal filament 16 is directly bonded by the associated adhesive 17 against the internal wall 10b of the sleeve 10. This variant is however more difficult to implement, given the fineness metallic filament, so that in practice the variants previously illustrated in which the metallic filament is secured to an adhesive support strip.

La coupe de la figure 9 montre, à plat, le manchon thermorétractable, qui est ici du type présentant un rabat intérieur 19 résultant de sa formation par recouvrement et scellage à partir d'une feuille plate, lequel rabat s'étend selon une génératrice du manchon 10. Il est alors intéressant de prévoir que le filament métallique 16 soit disposé au niveau du rabat intérieur 19, entre les deux épaisseurs de paroi du manchon 10, ledit filament étant ou non associé à une bande-support. L'adhésif 17 utilisé alors au niveau du rabat intérieur sert à la fois au maintien du filament métallique, et au scellage des deux bords du manchon. On distingue également sur cette figure la bande d'arrachage 13 avec la double ligne préférentielle de découpe 11, et l'on constate que le filament métallique 16 est là encore totalement disjoint de la bande d'arrachage 13.The section of Figure 9 shows, flat, the heat-shrinkable sleeve, which is here of the type having an inner flap 19 resulting from its formation by covering and sealing from a flat sheet, which flap extends along a generatrix of the sleeve 10. It is then advantageous to provide that the metallic filament 16 is disposed at the level of the inner flap 19, between the two wall thicknesses of the sleeve 10, said filament being or not associated with a support strip. The adhesive 17 then used at the inner flap serves both to hold the metal filament, and to seal the two edges of the sleeve. We also distinguish in this figure the tear strip 13 with the preferential double cutting line 11, and it can be seen that the metal filament 16 is again completely separated from the tear strip 13.

D'une façon générale, il conviendra de choisir une longueur de filament métallique qui soit suffisante pour présenter une surface d'émission capable de générer un signal aisé à analyser. Dans la pratique, il est apparu qu'une longueur de filament au moins égale à 65 mm est en général satisfaisante à ce point de vue. Cependant, avec un choix judicieux de certains polymères intégrés à la formule de base de la matière plastique du film constitutif du manchon, on pourra utiliser des antennes de longueurs plus faibles, par exemple de l'ordre de 35 mm. Ceci est particulièrement intéressant pour les objets de petites dimensions.In general, it will be necessary to choose a length of metal filament which is sufficient to present an emission surface capable of generating a signal easy to analyze. In practice, it has appeared that a filament length at least equal to 65 mm is generally satisfactory from this point of view. However, with a judicious choice of certain polymers integrated into the basic formula of the plastic of the film constituting the sleeve, it will be possible to use antennas of shorter lengths, for example of the order of 35 mm. This is particularly interesting for small objects.

On est ainsi parvenu à concevoir un mode d'intégration d'un moyen de détection dans une enveloppe d'emballage qui procure une discrétion très satisfaisante, tout en bénéficiant de la sensibilité des systèmes électroniques de surveillance sophistiqués actuellement disponibles sur le marché. En plus de la discrétion, et de la résolution du problème de la désactivation, il convient de noter que la pose d'une bande-support avec son filament métallique peut être aisément organisée en utilisant les machines de pose existantes déjà utilisées pour le collage d'une bande d'arrachage adhésive ou collée au moyen d'un adhésif réactivable à la chaleur. De ce fait, on dispose ainsi d'un système qui est aisément industrialisable.It has thus been possible to devise a method of integrating a detection means into a packaging envelope which provides very satisfactory discretion, while benefiting from the sensitivity of the sophisticated electronic surveillance systems currently available on the market. In addition to discretion, and the resolution of the deactivation problem, it should be noted that the installation of a support strip with its metallic filament can be easily organized using the existing laying machines already used for gluing '' an adhesive peel-off strip or glued with a heat-reactivatable adhesive. Therefore, there is thus a system which is easily industrializable.

Enfin, un tel moyen de détection intégré dans une enveloppe d'emballage peut faciliter la gestion des produits emballés. En effet, on peut tirer parti du fait que la longueur d'onde de résonance dépend directement de la longueur du filament métallique utilisé, en organisant des classements en groupes de produits ou de distributeurs grâce à un choix de longueurs de filament différentes prédéterminées, groupes dont chacun est immédiatement reconnaissable par la longueur d'onde de résonance qui lui est associée. On obtient ainsi une véritable traçabilité des produits emballés, et ce sans compliquer aucunement l'emballage de ces produits.Finally, such a detection means integrated in a packaging envelope can facilitate the management of the packaged products. Indeed, we can take advantage of the fact that the resonance wavelength directly depends on the length of the metallic filament used, by organizing classifications into groups of products or distributors thanks to a choice of predetermined different filament lengths, groups each of which is immediately recognizable by the resonance wavelength associated therewith. We thus obtain a real traceability of the packaged products, and this without in any way complicating the packaging of these products.

L'invention n'est pas limitée aux modes de réalisation qui viennent d'être décrits, mais englobe au contraire toute variante reprenant, avec des moyens équivalents, les caractéristiques essentielles énoncées plus haut.The invention is not limited to the embodiments which have just been described, but on the contrary encompasses any variant incorporating, with equivalent means, the essential characteristics set out above.

Claims (9)

Enveloppe d'emballage d'objet, réalisée à partir d'un manchon en matière plastique thermorétractable essentiellement orientée dans le sens transversal et comportant une ligne préférentielle de découpe, caractérisée en ce qu'elle comporte, sur la paroi interne (10b) du manchon (10), un filament métallique (16) s'étendant à distance de la ligne préférentielle de découpe (11) pour rester sur l'enveloppe après découpe de celle-ci, ledit filament étant agencé pour constituer une antenne pour un système électronique de surveillance fonctionnant sur un principe de détection magnétique.Object packaging envelope, produced from a sleeve of heat-shrinkable plastic essentially oriented in the transverse direction and comprising a preferential cutting line, characterized in that it comprises, on the internal wall (10b) of the sleeve (10), a metallic filament (16) extending away from the preferred cutting line (11) to remain on the envelope after cutting thereof, said filament being arranged to constitute an antenna for an electronic system of surveillance operating on a magnetic detection principle. Enveloppe d'emballage selon la revendication 1, dans laquelle la ligne préférentielle de découpe (11) est disposée suivant une génératrice du manchon (10), caractérisée en ce que le filament métallique (16) est disposé essentiellement suivant une autre génératrice du manchon (10).Packaging envelope according to claim 1, in which the preferential cutting line (11) is arranged along a generatrix of the sleeve (10), characterized in that the metallic filament (16) is arranged essentially along another generatrix of the sleeve ( 10). Enveloppe d'emballage selon la revendication 2, caractérisée en ce que le filament métallique (16) a une longueur proche de la hauteur du manchon (10).Packaging envelope according to claim 2, characterized in that the metallic filament (16) has a length close to the height of the sleeve (10). Enveloppe d'emballage selon la revendication 2 ou la revendication 3, dans laquelle le manchon (10) présente un rabat intérieur (19) résultant de sa formation par recouvrement et scellage à partir d'une feuille plate, lequel rabat s'étend selon une génératrice dudit manchon, caractérisée en ce que le filament métallique (16) est disposé au niveau du rabat intérieur (19), entre les deux épaisseurs de paroi du manchon.A packaging envelope according to claim 2 or claim 3, in which the sleeve (10) has an inner flap (19) resulting from its formation by covering and sealing from a flat sheet, which flap extends in a generator of said sleeve, characterized in that the metal filament (16) is disposed at the inner flap (19), between the two wall thicknesses of the sleeve. Enveloppe d'emballage selon la revendication 1, dans laquelle la ligne préférentielle de découpe (11) et disposée suivant une ligne périphérique du manchon (10), caractérisée en ce que le filament métallique (16) est disposé essentiellement suivant une autre ligne périphérique du manchon (10).Packaging envelope according to claim 1, in which the preferential cutting line (11) and disposed along a peripheral line of the sleeve (10), characterized in that the metallic filament (16) is disposed essentially along another peripheral line of the sleeve (10). Enveloppe d'emballage selon l'une des revendications 1 à 5, caractérisée en ce que le filament métallique (16) est collé directement contre la paroi interne (10b) du manchon (10).Packaging envelope according to one of claims 1 to 5, characterized in that the metallic filament (16) is glued directly against the internal wall (10b) of the sleeve (10). Enveloppe d'emballage selon l'une des revendications 1 à 5, caractérisée en ce que le filament métallique (16) est solidaire d'une bande-support auto-adhésive (15) qui est collée par sa face adhésive contre la paroi interne (10b) du manchon (10).Packaging envelope according to one of claims 1 to 5, characterized in that the metallic filament (16) is integral with a self-adhesive backing strip (15) which is glued by its adhesive face against the internal wall ( 10b) of the sleeve (10). Enveloppe d'emballage selon l'une des revendications 1 à 5, caractérisée en ce que le filament métallique (16) est solidaire d'une bande support (15) qui est collée par un adhésif réactivable à la chaleur contre la paroi interne (10b) du manchon (10).Packaging envelope according to one of Claims 1 to 5, characterized in that the metallic filament (16) is integral with a support strip (15) which is glued by an adhesive which can be reactivated by heat against the internal wall (10b ) of the sleeve (10). Enveloppe d'emballage selon l'une des revendications 1 à 8, dans laquelle une bande d'arrachage (13) est prévue au voisinage de la ligne préférentielle de découpe (11), caractérisée en ce que le filament métallique (16) est totalement disjoint de la bande d'arrachage (13).Packaging envelope according to one of Claims 1 to 8, in which a tear strip (13) is provided in the vicinity of the preferred cutting line (11), characterized in that the metallic filament (16) is completely disjoint from the tear strip (13).
EP19950401902 1994-08-26 1995-08-17 Packaging wrapper made of a tube of heat shrinkable plastics material Expired - Lifetime EP0698561B1 (en)

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FR9410337 1994-08-26
FR9410337A FR2723920B3 (en) 1994-08-26 1994-08-26 PACKAGING FOR OBJECT MADE FROM A SLEEVE OF HEAT-SHRINKABLE PLASTIC MATERIAL

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EP0698561B1 EP0698561B1 (en) 1997-06-11

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FR2767795A1 (en) * 1997-09-04 1999-03-05 Philippe Lucas FILLED GLASS PRECONDITIONED UNDER PLASTIC FILM
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WO1999030982A1 (en) * 1997-12-12 1999-06-24 Sleever International Company Packaging for hanging articles on a display unit clip pin
FR2772252A1 (en) 1997-12-12 1999-06-18 Sleever Int DEVICE FOR SUPPORTING AT LEAST ONE OBJECT, AND ASSOCIATED METHOD FOR ENVELOPING AT LEAST ONE OBJECT TO BE ATTACHED TO A DISPLAY PIN
FR2792912A1 (en) * 1999-04-27 2000-11-03 Manuf Lyonnaise De Bouchage Ml PROCESS FOR THE MANUFACTURE OF ANTI-THEFT AND / OR TRACEABILITY DEVICES ASSOCIATED WITH CAPPING AND OVERCOATING MEANS
EP1048586A1 (en) 1999-04-27 2000-11-02 Manufacture Lyonnaise de Bouchage Société Anonyme Method for manufacturing theft preventing and/or trace devices for capping and overcapping means
US6406579B1 (en) 1999-04-27 2002-06-18 Manufacture Lyonnaise De Bouchage-Mlb Process for manufacturing anti-theft and/or traceability devices associated with stoppering means
EP1054369A1 (en) * 1999-05-21 2000-11-22 Agence Française d'Articles de Conditionnement Etablisements Serre - AFAC Method for making packaging sleeves and resulting article
FR2793770A1 (en) * 1999-05-21 2000-11-24 Agence Francaise D Articles De PROCESS FOR MANUFACTURING PACKING SLEEVES OR SLEEVES AND CORRESPONDING SLEEVES OR PACKING SLEEVES
EP1676782A1 (en) 2004-12-30 2006-07-05 Sleever International Company Process of packaging object(s) with a heat-shrinkable sleeve and heat-shrinkable sleeve
EP1818277A1 (en) * 2006-02-10 2007-08-15 Sealed Air S.A.S. Heat-shrinkable bags comprising an electronically detectable label and packages obtained therefrom
NL2004034C2 (en) * 2009-12-30 2011-07-04 Technofit B V PACKED PRODUCT AND METHOD FOR PACKAGING A PRODUCT.
WO2016066521A1 (en) 2014-10-30 2016-05-06 Arjowiggins Solutions Tamper-evident seal for heat-shrinkable sleeve
GB2554093A (en) * 2016-09-19 2018-03-28 Sekura Global Llp Method of attaching a security tag to an object

Also Published As

Publication number Publication date
FR2723920A1 (en) 1996-03-01
ES2105851T3 (en) 1997-10-16
DE69500341D1 (en) 1997-07-17
EP0698561B1 (en) 1997-06-11
DE69500341T2 (en) 1998-01-15
FR2723920B3 (en) 1996-09-27
GR3024717T3 (en) 1997-12-31

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