EP2747059A1 - Self-adhesive label with concealed security message - Google Patents

Self-adhesive label with concealed security message Download PDF

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Publication number
EP2747059A1
EP2747059A1 EP13197926.2A EP13197926A EP2747059A1 EP 2747059 A1 EP2747059 A1 EP 2747059A1 EP 13197926 A EP13197926 A EP 13197926A EP 2747059 A1 EP2747059 A1 EP 2747059A1
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EP
European Patent Office
Prior art keywords
layer
force
self
adhesive
multilayer
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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
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EP13197926.2A
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German (de)
French (fr)
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EP2747059B1 (en
Inventor
Gérard Autajon
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Finega SA
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Finega SA
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/02—Forms or constructions
    • G09F3/0291—Labels or tickets undergoing a change under particular conditions, e.g. heat, radiation, passage of time
    • G09F3/0292—Labels or tickets undergoing a change under particular conditions, e.g. heat, radiation, passage of time tamper indicating labels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/08—Fastening or securing by means not forming part of the material of the label itself
    • G09F3/10—Fastening or securing by means not forming part of the material of the label itself by an adhesive layer

Definitions

  • the present invention relates to the field of self-adhesive labels comprising a movable multilayer assembly completely detachable or not with respect to a multilayer assembly.
  • the self-adhesive label according to the invention finds a particularly advantageous application for constituting a security label to ensure the inviolability, traceability and / or authentication of the object on which the label is glued.
  • a self-adhesive label comprises a detachable multilayer assembly with respect to a multilayer assembly for attachment to an object.
  • the multilayer fastening assembly comprises a fastening material element composed of at least one type of paper or plastic film-like front, provided on its underside with a layer of glue carried by a support, the removal of which makes it possible to fix the label on any type of object to secure.
  • the detachable multilayer assembly comprises at least one frontal material element, generally printed on its upper face, assembled with the fastening material element by means of an adhesive varnish.
  • One or more so-called security printing layers are interposed between the frontal hardware element and the hardware fastener element.
  • the multilayer fastening assembly displays, using the security printing layers, a message proving the act of removal or attempt removal of the label.
  • the multilayer fastening assembly which comprises at least the paper-like front end or plastic film remains attached to the object.
  • the patent application EP 0657859 discloses an adhesive closure highlighting burglary attempts for a cellulosic carrier of a container.
  • This closure comprises a transparent front layer, a discontinuous layer of a deposit of a transparent barrier material bonded to the inner surface of the front layer, a colored layer firmly bonded to the front layer in areas where it does not exist. of deposits of the transparent barrier material.
  • This closure also has two layers of adhesives to vary the peel force to ensure separation.
  • This closure has the disadvantage of having a tacky appearance both at the level of the movable assembly of the set attached to the object.
  • the patent US 5294470 discloses an indicator system for opening an object having a masking material having low adhesion properties on a transparent or translucent panel.
  • a dye layer is disposed on the inner face of the transparent panel and beyond the masking material.
  • An adhesive is provided to wrap the dye layer.
  • the disadvantage of this system is the tacky appearance presented by the moving assembly and the assembly remaining fixed on the object after opening.
  • the present invention aims to propose a new self-adhesive safety label comprising a moving multilayer assembly with respect to a multilayer fastening assembly, such a self-adhesive label having a reduced manufacturing cost compared to known self-adhesive labels while reducing the proportion of material to be recycled. end of life of the object provided with such a label, for the same printing surface, the multilayer protection assembly and the assembly multilayer mobile having no stickiness or adhesive after separation.
  • Another object of the invention is to propose a new security self-adhesive label designed not to display the security message, before any removal attempt.
  • the Fig. 1 is a perspective view showing a self-adhesive label attached to an object.
  • the Fig. 1A is a view of the self-adhesive label shown in the Fig. 1 with the moving multilayer assembly raised relative to the multilayer fastener assembly.
  • the Fig. 2 is a sectional view of a first embodiment of the label according to the invention.
  • the Fig. 2A is a sectional view of the self-adhesive label illustrated in FIG. Fig. 2 the moving multilayer assembly is removed from the multilayer fastener assembly.
  • the Fig. 3 is a sectional view of another embodiment of a self-adhesive label according to the invention.
  • the Fig. 3A is a sectional view of the self-adhesive label illustrated in FIG. Fig. 3 with the moving multilayer assembly removed from the multilayer fastener assembly.
  • the present invention relates to a self-adhesive label 1 to be fixed on an object 2 of any kind in order to ensure the inviolability, traceability and / or authentication of the object 2 on which the label is pasted.
  • the self-adhesive label 1 comprises a multilayer assembly 3 which is movable relative to a multilayer assembly 4 for attachment to the object 2, during the application of a take-off force F between the moving multilayer assembly. 3 and the multilayer fixing assembly 4.
  • the multilayer assembly 4 comprises at least one adhesive layer 6 such as glue, carried by a support 7 having a non-stick nature by compared to the adhesive layer 6.
  • the support 7 is removed from the multilayer fixing assembly 4 to allow the attachment of the label 1 on the object 2.
  • the movable multilayer assembly 3 comprises at least one front material element 8 made of any suitable material, for example paper or plastic, transparent or opaque, colored or not.
  • This front material element 8 is made of one or more layers of materials.
  • the front material element 8 is a polypropylene film.
  • the front material element 8 has an upper face 9 and the opposite, a lower face 11. The lower and upper terms are to be considered in relation to the direction of observation of the object 2 when the label is attached to the object, with the mobile multilayer assembly 3 in contact with the multilayer fastening assembly 4.
  • a printing layer 12 is made on all or part of the lower face 11 of the front material element 8.
  • the printing layer 12 is made in any appropriate manner on the lower face 11 and for example by flexography.
  • the upper face 9 of the front material element 8 can be printed.
  • the self-adhesive label according to the invention comprises a sectioning layer 13 interposed between the front material element 8 and the printing layer 12.
  • This sectioning layer 13 is made in a localized manner with respect to the surface of the printing layer 12 so that a portion 12a of the printing layer 12 is in the superposition position with respect to the cutting layer 13.
  • the printing layer 12 thus comprises a portion 12a in contact with the cutting layer 13 and a portion 12b located outside the cutting layer 13, in contact directly or indirectly with the lower face 11 of the front material element 8, as will be explained in the following description.
  • the severing layer 13 has a holding force such that the printing layer in the superposition position, i.e., the portion 12a of the printing layer can be separated from the front material element 8 when the application of the take-off force F so as to be part of the moving multilayer assembly 3.
  • the lower face 11 of the frontal material element 8 has a retaining force which, outside this cutting layer 13, is greater than the takeoff force F so that the portion 12b of the printing layer, located outside the cutting layer 13 remains integral with the moving multilayer assembly 3.
  • the sectioning layer 13 has, relative to the front material element 8, a holding force which is less than the take-off force F of the moving multilayer assembly 3, so that the cutting layer 13 is separated from the frontal material element 8 during the application of the take-off force F.
  • the separation of the cutting layer 13 causes simultaneously, the corresponding portion 12a of the printing layer 12 which separates from the portion 12b of the layer printing, the latter remaining integral with the front material element 8.
  • the sectioning layer 13 acts as a cutting element of the printing layer 12, in a contour defined by the contour of the sectioning layer 13.
  • the cutting layer 13 is made by a mixture, for example of the ink type, varnish, bleach, additives.
  • This sectioning layer 13 is transparent or translucent, colored or not.
  • the printing layer 12 is separated from the cutting layer 13 by means of an intermediate hooking layer A.
  • the layer of impression 12 can be separated from the front material element 8 by an intermediate adhesive layer A.
  • This intermediate fastening layer A can be produced for example by printing.
  • this intermediate tie layer A is interposed between, on one side, the printing layer 12 and on the opposite side, the cutting layer 13 and the lower face 11 of the element. 8.
  • the printing layer 12 may be made directly on the lower face 11 on which the cutting layer 13 has been previously deposited.
  • the face 13a of the cutting layer 13 turned away from the front material element 8 is provided with a surface treatment t improving its surface tension.
  • the lower face 11 of the front material element 8 is provided with a surface treatment t improving its surface tension.
  • a surface treatment t is performed on the entire lower face 11 of the front material element 8.
  • corona treatment can be performed as a surface treatment t.
  • such a surface treatment makes it possible to increase the surface tension between the lower face 11 of the frontal material element 8 and the intermediate tie layer A, whereas the surface tension between the frontal material element 8 and the sectioning layer 13 remains lower since the surface treatment t has not been made between the sectioning layer 13 and the front material element 8.
  • the self-adhesive label 1 comprises at least a first separation layer 14 covering at least a portion of the adhesive layer 6.
  • the self-adhesive security label 1 comprises a single separation layer 14. It should be noted that the separation layer 14 is separated or not from the adhesive layer 6 with the aid of one or more layers of protection against the adhesive.
  • This first separation layer 14 is designed so that the retaining force between the moving multilayer assembly 3 and said first separation layer 14 is less than the take-off force F of the moving multilayer assembly 3 exerted to ensure separation between the moving multilayer assembly 3 and the multilayer fastening assembly 4.
  • the first separation layer 14 remains integral with the multilayer fastening assembly 4 during the application of such a take-off force F.
  • the first separation layer 14 has a force of retained with the adhesive layer 6, which is greater than the take-off force F.
  • the weakest retaining force is between the sectioning layer 13 and the front material element 8 ( Fig. 2-2A and 3-3A).
  • the retention force of the severing layer 13 with the front material element 8 is less than the retention force of the first separation layer 14.
  • the first activated separation layer 14 has a bonding bond depending on the surface tension between said separation layer and the layer on which it is deposited namely the print layer 12 in the illustrated example.
  • the multilayer fastener assembly 4 After lifting the movable multilayer assembly 3 with respect to the multilayer fastener assembly 4, the multilayer fastener assembly 4 comprises, as an upper face, the upper face 15 of the first separation layer 14 and the cutting layer 13. while the movable multilayer assembly 3 comprises, as a lower face, the lower face 16 of the printing layer 12, amputated from the portion 12a of the printing layer 12 superimposed on the cutting layer 13.
  • the portion 12a of the printing layer which appears on the upper face 15 through the severing layer 13 corresponds to the word "OPEN".
  • the lower face of the moving multilayer assembly 3 shows the word "OPEN" in negative.
  • the upper face 15 of the first separation layer 14 is non-adhesive.
  • the lower face 16 of the printing layer 12 is also non-adhesive.
  • the first separation layer 14 may be an activatable varnish of the "peel-off" type.
  • the self-adhesive label 1 comprises a first separation layer 14 but also a second separation layer 17 covering at least the printing layer 12 made on the lower face 11 of the front material element 8.
  • This second separation layer 17 is in contact with the first separation layer 14 since it is interposed between the printing layer 12 and the first separation layer 14.
  • the two separation layers 14 and 17 are made perfectly superimposed.
  • This second separation layer 17 is designed so that the retaining force between the two separation layers 14 and 17 is less than the take-off force F of the moving multilayer assembly 3, so that the second separation layer 17 remains secured to the moving multilayer assembly 3 while the first separating layer 14 remains integral with the multilayer fixing assembly 4. It should be noted that the second separation layer 17 has a retaining force with the printing layer 12 , which is greater than the detaching force F.
  • the weakest retaining force is between the sectioning layer 13 and the front material element 8 ( Fig. 3 and 3A ).
  • the retaining force of the cutting layer 13 with the front material element 8 or with the printing layer 12 or even the intermediate fastening layer A is less than the retaining force of the separation layers 14 and 17.
  • the portion 12a of the printing layer placed in superposition position of the cutting layer 13 remains integral with the multilayer fixing assembly 4.
  • Each activated separation layer 14 and 17 has a bonding bond depending on the surface tension between said separation layer and the layer on which it is deposited as well as the amount deposited. Controlling the quantity deposited makes it possible to vary the separation force of the moving assembly relative to the fixed assembly according to the need or the object on which the label will be deposited. This ease of adjustment makes it possible to adapt very quickly and easily to the intrinsic constraints of bonding on various objects.
  • the multilayer fastener assembly 4 After lifting the movable multilayer assembly 3 with respect to the multilayer fastener assembly 4, the multilayer fastener assembly 4 comprises, as an upper face, the upper face 15 of the first separation layer 14 and the cutting layer 13. ( Fig. 3A ) while that the movable multilayer assembly 3 comprises, as a lower face, the lower face 19 of the second separation layer 17, amputated from its part placed in superposition position with the cutting layer 13, the upper face 20 of the second separation layer 17 being in contact with the printing layer 12. As explained above in relation to Fig. 2-2A , the lower face of the moving multilayer assembly 3 shows in negative a pattern similar to that presented by the upper face of the multilayer fastening assembly 4.
  • the lower face 19 of the second separation layer 17, and consequently of the moving multilayer assembly 3 is non-adhesive.
  • the upper face 15 of the first separation layer 14 is also non-adhesive.
  • the first separation layer 14 may be an activatable varnish of the release type while the second separation layer 17 may be an activatable varnish of the "peel-off" type.
  • the self-adhesive label 1 comprises a single material element namely, the front material element 8.
  • the multilayer assembly 4 which is attached to the object 2 does not have a hardware element
  • the self-adhesive label 1 has the advantage of being adapted or configured in different ways, so as to produce a security label to ensure the inviolability, authentication and traceability of objects 2 on which such a label is intended to be fixed.

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Abstract

The label has a separation layer (14) covering a part of an adhesive layer (6), and designed such that retaining force between a mobile multi-layer unit and the separation layer is lower than moving force of the mobile multi-layer unit. The retaining force is higher than retaining force of a cutting layer (13) such that a part of a pressing layer (12) placed in a superposition position of the cutting layer remains integrated into a multi-layer unit fixing part during application of the moving force.

Description

La présente invention concerne le domaine des étiquettes autoadhésives comportant un ensemble multicouche mobile complètement détachable ou non par rapport à un ensemble multicouche de fixation.The present invention relates to the field of self-adhesive labels comprising a movable multilayer assembly completely detachable or not with respect to a multilayer assembly.

L'étiquette autoadhésive conforme à l'invention trouve une application particulièrement avantageuse pour constituer une étiquette de sécurité permettant d'assurer l'inviolabilité, la traçabilité et/ou l'authentification de l'objet sur lequel l'étiquette est collée.The self-adhesive label according to the invention finds a particularly advantageous application for constituting a security label to ensure the inviolability, traceability and / or authentication of the object on which the label is glued.

Dans le domaine des étiquettes autoadhésives de sécurité, l'état de la technique a proposé de nombreuses formes de réalisation de telles étiquettes.In the field of self-adhesive security labels, the state of the art has proposed many embodiments of such labels.

D'une manière générale, une étiquette autoadhésive comporte un ensemble multicouche détachable par rapport à un ensemble multicouche de fixation sur un objet. L'ensemble multicouche de fixation comporte un élément matériel de fixation composé d'au moins un frontal type papier ou film plastique, pourvu sur sa face inférieure d'une couche de colle portée par un support dont le retrait permet de fixer l'étiquette sur tout type d'objet à sécuriser. L'ensemble multicouche détachable comporte au moins un élément matériel frontal, généralement imprimé sur sa face supérieure, assemblé avec l'élément matériel de fixation par l'intermédiaire d'un vernis-colle.In general, a self-adhesive label comprises a detachable multilayer assembly with respect to a multilayer assembly for attachment to an object. The multilayer fastening assembly comprises a fastening material element composed of at least one type of paper or plastic film-like front, provided on its underside with a layer of glue carried by a support, the removal of which makes it possible to fix the label on any type of object to secure. The detachable multilayer assembly comprises at least one frontal material element, generally printed on its upper face, assembled with the fastening material element by means of an adhesive varnish.

Une ou plusieurs couches d'impression dite de sécurité, sont interposées entre l'élément matériel frontal et l'élément matériel de fixation. Lorsque l'élément matériel frontal est détaché de l'ensemble multicouche de fixation, alors l'ensemble multicouche de fixation fait apparaitre, à l'aide des couches d'impression de sécurité, un message prouvant l'acte d'enlèvement ou de tentative d'enlèvement de l'étiquette. L'ensemble multicouche de fixation qui comporte au moins le frontal type papier ou film plastique reste fixé sur l'objet.One or more so-called security printing layers are interposed between the frontal hardware element and the hardware fastener element. When the front material element is detached from the multilayer fastening assembly, then the multilayer fastening assembly displays, using the security printing layers, a message proving the act of removal or attempt removal of the label. The multilayer fastening assembly which comprises at least the paper-like front end or plastic film remains attached to the object.

Si une telle étiquette autoadhésive donne satisfaction en pratique, il s'avère que sa fabrication requiert divers éléments constitutifs rendant son coût de fabrication non négligeable. Par ailleurs, il s'avère que les objets sur lesquels de telles étiquettes demeurent fixées, nécessitent un recyclage en fin de leur vie. Aussi, de telles étiquettes sont à même d'augmenter la quantité de matière à recycler des objets recevant de telles étiquettes.If such a self-adhesive label is satisfactory in practice, it turns out that its manufacture requires various components making its manufacturing cost not negligible. Moreover, it turns out that the objects on which such labels remain fixed require recycling in end of their life. Also, such labels are able to increase the amount of material to recycle objects receiving such labels.

Par ailleurs, il apparait que certaines de ces étiquettes autoadhésives de sécurité laissent apparaitre, avant toute tentative d'enlèvement, le message de sécurité, ce qui présente un inconvénient dans certaines applications.Moreover, it appears that some of these self-adhesive security labels let appear, before any removal attempt, the security message, which has a disadvantage in some applications.

La demande de brevet EP 0657859 décrit une fermeture adhésive mettant en évidence les tentatives d'effraction pour un support cellulosique d'un conteneur. Cette fermeture comporte une couche frontale transparente, une couche discontinue d'un dépôt d'un matériau transparent de barrière lié à la surface interne de la couche frontale, une couche colorée fermement liée à la couche frontale dans les régions où il n'existe pas de dépôts du matériau transparent de barrière. Cette fermeture comporte également deux couches d'adhésifs permettant de faire varier la force de décollement en vue d'assurer la séparation. Cette fermeture présente l'inconvénient de présenter un aspect collant aussi bien au niveau de l'ensemble mobile que de l'ensemble fixé sur l'objet.The patent application EP 0657859 discloses an adhesive closure highlighting burglary attempts for a cellulosic carrier of a container. This closure comprises a transparent front layer, a discontinuous layer of a deposit of a transparent barrier material bonded to the inner surface of the front layer, a colored layer firmly bonded to the front layer in areas where it does not exist. of deposits of the transparent barrier material. This closure also has two layers of adhesives to vary the peel force to ensure separation. This closure has the disadvantage of having a tacky appearance both at the level of the movable assembly of the set attached to the object.

Le brevet US 5294470 décrit un système indicateur de l'ouverture d'un objet comportant un matériau de masquage possédant de faibles propriétés d'adhérence sur un panneau transparent ou translucide. Une couche de colorant est disposée sur la face interne du panneau transparent et au-delà du matériau de masquage. Un adhésif est disposé pour envelopper la couche de colorant. L'inconvénient de ce système est l'aspect collant présenté par l'ensemble mobile et l'ensemble restant fixé sur l'objet après l'ouverture.The patent US 5294470 discloses an indicator system for opening an object having a masking material having low adhesion properties on a transparent or translucent panel. A dye layer is disposed on the inner face of the transparent panel and beyond the masking material. An adhesive is provided to wrap the dye layer. The disadvantage of this system is the tacky appearance presented by the moving assembly and the assembly remaining fixed on the object after opening.

La présente invention vise à proposer une nouvelle étiquette autoadhésive de sécurité comportant un ensemble multicouche mobile par rapport à un ensemble multicouche de fixation, une telle étiquette autoadhésive présentant un coût de fabrication réduit par rapport aux étiquettes autoadhésives connues tout en diminuant la part matière à recycler en fin de vie de l'objet pourvu d'une telle étiquette, pour une même surface d'impression, l'ensemble multicouche de protection et l'ensemble multicouche mobile ne présentant pas de caractère collant ou adhésif après séparation.The present invention aims to propose a new self-adhesive safety label comprising a moving multilayer assembly with respect to a multilayer fastening assembly, such a self-adhesive label having a reduced manufacturing cost compared to known self-adhesive labels while reducing the proportion of material to be recycled. end of life of the object provided with such a label, for the same printing surface, the multilayer protection assembly and the assembly multilayer mobile having no stickiness or adhesive after separation.

Un autre objet de l'invention est de proposer une nouvelle étiquette autoadhésive de sécurité conçue pour ne pas faire apparaitre le message de sécurité, avant toute tentative d'enlèvement.Another object of the invention is to propose a new security self-adhesive label designed not to display the security message, before any removal attempt.

Pour atteindre un tel objectif, l'invention concerne une étiquette autoadhésive de sécurité comportant un ensemble multicouche mobile par rapport à un ensemble multicouche de fixation sur un objet lors de l'application d'une force de décollage, l'ensemble multicouche mobile comportant un élément matériel frontal transparent ou translucide et une couche d'impression située sur au moins une partie de la face inférieure de l'élément matériel frontal, l'ensemble multicouche de fixation comportant une couche d'adhésif portée par un support duquel il est enlevable. Selon l'invention, l'étiquette autoadhésive de sécurité comprend :

  • une couche de sectionnement interposée, entre l'élément matériel frontal et la couche d'impression, de manière localisée et en position de superposition par rapport à une partie de la couche d'impression, la couche de sectionnement présentant, par rapport à l'élément matériel frontal, une force de retenue qui est inférieure à la force de décollage de l'ensemble multicouche mobile de sorte que la couche de sectionnement et la couche d'impression située en position de superposition puissent être séparées de l'ensemble multicouche mobile lors de l'application de la force de décollage tandis que la face inférieure de l'élément matériel frontal présente une force de retenue qui, en dehors de cette couche de sectionnement est supérieure à la force de décollage,
  • au moins une première couche de séparation recouvrant au moins une partie de la couche d'adhésif, cette couche de séparation étant conçue de manière que la force de retenue entre l'ensemble multicouche mobile et ladite couche de séparation soit inférieure à la force de décollage de l'ensemble multicouche mobile afin que la première couche de séparation reste solidaire de l'ensemble multicouche de fixation, cette force de retenue étant supérieure à la force de retenue de la couche de sectionnement, de sorte que, lors de l'application d'une telle force de décollage, la partie de la couche d'impression placée en position de superposition de la couche de sectionnement reste solidaire de l'ensemble multicouche de fixation.
To achieve such an objective, the invention relates to a security self-adhesive label comprising a moving multilayer assembly relative to a multilayer assembly for attachment to an object during the application of a take-off force, the mobile multilayer assembly comprising a transparent or translucent front material element and a printing layer located on at least a portion of the lower face of the front material element, the multilayer fastening assembly comprising a layer of adhesive carried by a support of which it is removable. According to the invention, the self-adhesive safety label comprises:
  • an interposed sectioning layer between the front material element and the printing layer, in a localized manner and in a superposition position with respect to a portion of the printing layer, the sectioning layer having, with respect to the frontal material element, a holding force which is less than the take-off force of the moving multilayer assembly so that the severing layer and the printing layer in the superposition position can be separated from the moving multilayer assembly when the application of the take-off force while the underside of the frontal material element has a retaining force which, outside of this sectioning layer is greater than the take-off force,
  • at least a first separating layer covering at least a portion of the adhesive layer, said separating layer being designed such that the holding force between the moving multilayer assembly and said separating layer is less than the take-off force of the movable multilayer assembly so that the first separating layer remains integral with the multilayer fastening assembly, this holding force being greater than the retaining force of the sectioning layer, so that, when applying such a peel force, the portion of the printing layer placed in the superposition position of the sectioning layer remains solidary of the multilayer assembly.

L'étiquette autoadhésive de sécurité, selon l'invention, comporte en outre, en combinaison, l'une et/ou l'autre des caractéristiques techniques additionnelles suivantes :

  • une deuxième couche de séparation recouvrant au moins la couche d'impression, en contact avec la première couche de séparation, la deuxième couche de séparation étant conçue de manière que la force de retenue entre les deux couches de séparation soit inférieure à la force de décollage de l'ensemble multicouche mobile, de sorte que la deuxième couche de séparation reste solidaire de l'ensemble multicouche mobile tandis que la première couche de séparation reste solidaire de l'ensemble multicouche de fixation,
  • la première couche de séparation est séparée de la couche d'adhésif à l'aide d'une ou de plusieurs couches de protection contre l'adhésif,
  • la couche de sectionnement est réalisée par le dépôt d'un mélange encre, vernis, décolorant, additifs,
  • la couche de sectionnement est transparente ou translucide, colorée ou non,
  • la couche d'impression est séparée de la couche de sectionnement ou de l'élément matériel frontal par l'intermédiaire d'une couche intermédiaire d'accroche,
  • la face de la couche de sectionnement, tournée à l'opposée de l'élément matériel frontal ainsi que la face inférieure de l'élément matériel frontal sont pourvues d'un traitement de surface améliorant leur tension de surface,
  • la première couche de séparation est déposée puis activée sur la couche d'impression, cette première couche de séparation possédant une tension de surface telle que la force de retenue la plus faible entre les couches de l'étiquette est située entre la couche d'impression et la première couche de séparation, en ce qui concerne la partie située en dehors de la couche de sectionnement, et d'un côté ou de l'autre de la couche de sectionnement, en ce qui concerne la partie située en relation avec ladite couche se sectionnement,
  • la deuxième couche de séparation est déposée puis activée sur la couche d'impression, pour posséder une tension de surface déterminée, et en ce que la première couche de séparation est déposée puis activée sur la deuxième couche de séparation pour posséder une tension de surface déterminée de manière que la force de retenue la plus faible entre les couches de l'étiquette est située entre la première couche de séparation et la deuxième couche de séparation en ce qui concerne la partie située en dehors de la couche de sectionnement, et d'un côté ou de l'autre de la couche de sectionnement , en ce qui concerne la partie située en relation avec ladite couche se sectionnement,
  • chaque couche de séparation activée possède une liaison d'accroche qui dépend de la tension de surface entre ladite couche de séparation et la couche sur laquelle elle est déposée ainsi que de la quantité déposée.
The self-adhesive security label, according to the invention, furthermore comprises, in combination, one and / or the other of the following additional technical characteristics:
  • a second separation layer covering at least the printing layer, in contact with the first separation layer, the second separation layer being designed so that the retaining force between the two separation layers is lower than the take-off force of the moving multilayer assembly, so that the second separation layer remains integral with the moving multilayer assembly while the first separation layer remains integral with the multilayer fixing assembly,
  • the first separating layer is separated from the adhesive layer by one or more layers of protection against the adhesive,
  • the cutting layer is produced by depositing a mixture of ink, varnish, bleach, additives,
  • the sectioning layer is transparent or translucent, colored or not,
  • the printing layer is separated from the cutting layer or the front material element by means of an intermediate tie layer,
  • the face of the cutting layer, turned away from the front material element and the underside of the front material element are provided with a surface treatment improving their surface tension,
  • the first separation layer is deposited and then activated on the printing layer, this first separation layer having a surface tension such that the lowest holding force between the The layers of the label are located between the printing layer and the first separation layer, with regard to the part located outside the cutting layer, and on one side or the other of the cutting layer. with regard to the part situated in relation to said sectioning layer,
  • the second separation layer is deposited and then activated on the printing layer, to have a determined surface tension, and in that the first separation layer is deposited and then activated on the second separation layer to have a determined surface tension so that the lowest retaining force between the layers of the label is between the first separation layer and the second separation layer with respect to the portion outside the separation layer, and either side of the sectioning layer, with regard to the part situated in relation to said sectioning layer,
  • each activated separation layer has a bonding bond which depends on the surface tension between said separation layer and the layer on which it is deposited as well as the amount deposited.

Diverses autres caractéristiques ressortent de la description faite ci-dessous en référence aux dessins annexés qui montrent, à titre d'exemples non limitatifs, des formes de réalisation de l'objet de l'invention.Various other characteristics appear from the description given below with reference to the accompanying drawings which show, by way of non-limiting examples, embodiments of the subject of the invention.

Diverses autres caractéristiques ressortent de la description faite ci-dessous en référence aux dessins annexés qui montrent, à titre d'exemples non limitatifs, des formes de réalisation de l'objet de l'invention.Various other characteristics appear from the description given below with reference to the accompanying drawings which show, by way of non-limiting examples, embodiments of the subject of the invention.

La Fig. 1 est une vue en perspective montrant une étiquette autoadhésive, fixée sur un objet.The Fig. 1 is a perspective view showing a self-adhesive label attached to an object.

La Fig. 1A est une vue de l'étiquette autoadhésive illustrée à la Fig. 1 avec l'ensemble multicouche mobile soulevé par rapport à l'ensemble multicouche de fixation.The Fig. 1A is a view of the self-adhesive label shown in the Fig. 1 with the moving multilayer assembly raised relative to the multilayer fastener assembly.

La Fig. 2 est une vue en coupe d'une première variante de réalisation de l'étiquette conforme à l'invention.The Fig. 2 is a sectional view of a first embodiment of the label according to the invention.

La Fig. 2A est une vue en coupe montant l'étiquette autoadhésive illustrée à la Fig. 2 dont l'ensemble multicouche mobile est retiré par rapport à l'ensemble multicouche de fixation.The Fig. 2A is a sectional view of the self-adhesive label illustrated in FIG. Fig. 2 the moving multilayer assembly is removed from the multilayer fastener assembly.

La Fig. 3 est une vue en coupe d'un autre mode de réalisation d'une étiquette autoadhésive conforme à l'invention.The Fig. 3 is a sectional view of another embodiment of a self-adhesive label according to the invention.

La Fig. 3A est une vue en coupe de l'étiquette autoadhésive illustrée à la Fig. 3 avec l'ensemble multicouche mobile retiré par rapport à l'ensemble multicouche de fixation.The Fig. 3A is a sectional view of the self-adhesive label illustrated in FIG. Fig. 3 with the moving multilayer assembly removed from the multilayer fastener assembly.

Tel que cela ressort des Fig. 1, 1A , la présente invention concerne une étiquette autoadhésive 1 destinée à être fixée sur un objet 2 de toute nature en vue d'assurer l'inviolabilité, la traçabilité et/ou l'authentification de l'objet 2 sur lequel l'étiquette est collée. De manière générale, l'étiquette autoadhésive 1 comporte un ensemble multicouche 3 qui est mobile par rapport à un ensemble multicouche 4 de fixation sur l'objet 2, lors de l'application d'une force de décollage F entre l'ensemble multicouche mobile 3 et l'ensemble multicouche de fixation 4.As is apparent from Fig. 1, 1A The present invention relates to a self-adhesive label 1 to be fixed on an object 2 of any kind in order to ensure the inviolability, traceability and / or authentication of the object 2 on which the label is pasted. In general, the self-adhesive label 1 comprises a multilayer assembly 3 which is movable relative to a multilayer assembly 4 for attachment to the object 2, during the application of a take-off force F between the moving multilayer assembly. 3 and the multilayer fixing assembly 4.

Tel que cela ressort plus précisement des Fig. 2 et 2A illustrant un exemple de réalisation de l'étiquette autoadhésive conforme à l'invention, l'ensemble multicouche de fixation 4 comporte au moins une couche d'adhésif 6 telle que de la colle, portée par un support 7 présentant un caractère anti-adhésif par rapport à la couche d'adhésif 6. Ainsi, le support 7 est enlevé de l'ensemble multicouche de fixation 4 pour permettre la fixation de l'étiquette 1 sur l'objet 2. Il est à noter que les différentes couches de l'étiquette 1 représentées sur les dessins ne sont pas à l'échelle mais sont illustrées uniquement pour la compréhension de l'invention.As is more accurately apparent from the Fig. 2 and 2A illustrating an exemplary embodiment of the self-adhesive label according to the invention, the multilayer assembly 4 comprises at least one adhesive layer 6 such as glue, carried by a support 7 having a non-stick nature by compared to the adhesive layer 6. Thus, the support 7 is removed from the multilayer fixing assembly 4 to allow the attachment of the label 1 on the object 2. It should be noted that the different layers of the label 1 shown in the drawings are not to scale but are illustrated only for the understanding of the invention.

L'ensemble multicouche mobile 3 comporte au moins un élément matériel frontal 8 réalisé en toute matière appropriée, par exemple en papier ou en matière plastique, à caractère transparent ou opaque, coloré ou non. Cet élément matériel frontal 8 est réalisé par une ou plusieurs couches de matières. Par exemple, l'élément matériel frontal 8 est un film en polypropylène. L'élément matériel frontal 8 présente une face supérieure 9 et à l'opposé, une face inférieure 11. Les termes inférieure et supérieure sont à prendre en considération par rapport au sens d'observation de l'objet 2 lorsque l'étiquette est fixée sur l'objet, avec l'ensemble multicouche mobile 3 en contact avec l'ensemble multicouche de fixation 4. The movable multilayer assembly 3 comprises at least one front material element 8 made of any suitable material, for example paper or plastic, transparent or opaque, colored or not. This front material element 8 is made of one or more layers of materials. For example, the front material element 8 is a polypropylene film. The front material element 8 has an upper face 9 and the opposite, a lower face 11. The lower and upper terms are to be considered in relation to the direction of observation of the object 2 when the label is attached to the object, with the mobile multilayer assembly 3 in contact with the multilayer fastening assembly 4.

Une couche d'impression 12 est réalisée sur tout ou partie de la face inférieure 11 de l'élément matériel frontal 8. La couche d'impression 12 est réalisée de toute manière appropriée sur la face inférieure 11 et par exemple par flexographie. Bien entendu, la face supérieure 9 de l'élément matériel frontal 8 peut être imprimée.A printing layer 12 is made on all or part of the lower face 11 of the front material element 8. The printing layer 12 is made in any appropriate manner on the lower face 11 and for example by flexography. Of course, the upper face 9 of the front material element 8 can be printed.

Conformément à l'invention, l'étiquette autoadhésive selon l'invention, comporte une couche de sectionnement 13 interposée entre l'élément matériel frontal 8 et la couche d'impression 12. Cette couche de sectionnement 13 est réalisée de manière localisée par rapport à la surface de la couche d'impression 12 de manière qu'une partie 12a de la couche d'impression 12 se trouve en position de superposition par rapport à la couche de sectionnement 13. En d'autres termes, la couche d'impression 12 comporte ainsi une partie 12a située au contact de la couche de sectionnement 13 et une partie 12b située en dehors de la couche de sectionnement 13, en étant en contact directement ou indirecement avec la face inférieure 11 de l'élément matériel frontal 8, comme cela sera expliqué dans la suite de la description.According to the invention, the self-adhesive label according to the invention comprises a sectioning layer 13 interposed between the front material element 8 and the printing layer 12. This sectioning layer 13 is made in a localized manner with respect to the surface of the printing layer 12 so that a portion 12a of the printing layer 12 is in the superposition position with respect to the cutting layer 13. In other words, the printing layer 12 thus comprises a portion 12a in contact with the cutting layer 13 and a portion 12b located outside the cutting layer 13, in contact directly or indirectly with the lower face 11 of the front material element 8, as will be explained in the following description.

La couche de sectionnement 13 présente une force de retenue telle que la couche d'impression située en position de superposition c'est-à-dire la partie 12a de la couche d'impression puisse être séparée de l'élément matériel frontal 8 lors de l'application de la force de décollage F de manière à faire partie de l'ensemble multicouche mobile 3. Par ailleurs, la face inférieure 11 de l'élément matériel frontal 8 présente une force de retenue qui, en dehors de cette couche de sectionnement 13, est supérieure à la force de décollage F de manière que la partie 12b de la couche d'impression, située en dehors de la couche de sectionnement 13 reste solidaire de l'ensemble multicouche mobile 3. The severing layer 13 has a holding force such that the printing layer in the superposition position, i.e., the portion 12a of the printing layer can be separated from the front material element 8 when the application of the take-off force F so as to be part of the moving multilayer assembly 3. On the other hand, the lower face 11 of the frontal material element 8 has a retaining force which, outside this cutting layer 13, is greater than the takeoff force F so that the portion 12b of the printing layer, located outside the cutting layer 13 remains integral with the moving multilayer assembly 3.

Dans l'exemple de réalisation illustré aux Fig. 2, 2A et 3 , 3A, la couche de sectionnement 13 présente par rapport à l'élément matériel frontal 8, une force de retenue qui est inférieure à la force de décollage F de l'ensemble multicouche mobile 3, de sorte que la couche de sectionnement 13 est séparée de l'élément matériel frontal 8 lors de l'application de la force de décollage F. Ainsi, le décollement de la couche de sectionnement 13 entraine simultanément, la partie 12a correspondante de la couche d'impression 12 qui se sépare de la partie 12b de la couche d'impression, cette dernière restant solidaire de l'élément matériel frontal 8. En d'autres termes, la couche de sectionnement 13 agit comme un élément de découpe de la couche d'impression 12, selon un contour définit par le contour de la couche de sectionnement 13. In the exemplary embodiment illustrated in Fig. 2, 2A and 3 , 3A, the sectioning layer 13 has, relative to the front material element 8, a holding force which is less than the take-off force F of the moving multilayer assembly 3, so that the cutting layer 13 is separated from the frontal material element 8 during the application of the take-off force F. Thus, the separation of the cutting layer 13 causes simultaneously, the corresponding portion 12a of the printing layer 12 which separates from the portion 12b of the layer printing, the latter remaining integral with the front material element 8. In other words, the sectioning layer 13 acts as a cutting element of the printing layer 12, in a contour defined by the contour of the sectioning layer 13.

Par exemple, la couche de sectionnement 13 est réalisée par un mélange, par exemple du type encre, vernis, décolorant, additifs.For example, the cutting layer 13 is made by a mixture, for example of the ink type, varnish, bleach, additives.

Cette couche de sectionnement 13 est transparente ou translucide, colorée ou non.This sectioning layer 13 is transparent or translucent, colored or not.

Selon un mode de réalisation illustré sur les dessins mais non exclusif, la couche d'impression 12 est séparée de la couche de sectionnement 13 à l'aide d'une couche intermédiaire d'accroche A. Dans le même sens, la couche d'impression 12 peut être séparée de l'élément matériel frontal 8 par une couche intermédiaire d'accroche A. Cette couche intermédiaire d'accroche A peut être réalisée par exemple par impression. Tel que cela ressort des figures, cette couche intermédiaire d'accroche A se trouve interposée entre, d'un côté la couche d'impression 12 et du côté oppposé, de la couche de sectionnement 13 et de la face inférieure 11 de l'élément matériel frontal 8. Bien entendu, la couche d'impression 12 peut être réalisée directement sur la face inférieure 11 sur laquelle la couche de sectionnement 13 a été déposée préalablement.According to an embodiment illustrated in the drawings, but not exclusive, the printing layer 12 is separated from the cutting layer 13 by means of an intermediate hooking layer A. In the same direction, the layer of impression 12 can be separated from the front material element 8 by an intermediate adhesive layer A. This intermediate fastening layer A can be produced for example by printing. As can be seen from the figures, this intermediate tie layer A is interposed between, on one side, the printing layer 12 and on the opposite side, the cutting layer 13 and the lower face 11 of the element. 8. Of course, the printing layer 12 may be made directly on the lower face 11 on which the cutting layer 13 has been previously deposited.

Il est à noter qu'il peut être prévu de réaliser une ou plusieurs couches d'impression complémentaires 12' comme illustré aux Fig. 3 et 3A , entre la couche d'impression 12 et la couche intermédiaire d'accroche A. It should be noted that it may be provided to make one or more complementary printing layers 12 ' as illustrated in FIGS. Fig. 3 and 3A Between the printing layer 12 and the intermediate bonding layer A.

Selon une variante préférée de réalisation illustrée aux Fig. 2, 2A et 3, 3A, la face 13a de la couche de sectionnement 13, tournée à l'opposée de l'élément matériel frontal 8 est pourvu d'un traitement de surface t améliorant sa tension de surface. De même, la face inférieure 11 de l'élément matériel frontal 8 est pourvu d'un traitement de surface t améliorant sa tension de surface. Ainsi, après la mise en place de la couche de sectionnement 13 sur la face inférieure 11 de l'élément matériel frontal 8, alors un traitement de surface t est effectué sur toute cette face inférieure 11 de l'élément matériel frontal 8. Par exemple, un traitement corona peut être réalisé en tant que traitement de surface t. Ainsi, un tel traitement de surface permet d'augmenter la tension de surface entre la face inférieure 11 de l'élément matériel frontal 8 et la couche intermédiaire d'accroche A, alors que la tension de surface entre l'élément matériel frontal 8 et la couche de sectionnement 13 reste inférieure puisque le traitement de surface t n'a pas été réalisé entre la couche de sectionnement 13 et l'élément matériel frontal 8. According to a preferred embodiment illustrated at Fig. 2, 2A and 3, 3A, the face 13a of the cutting layer 13 , turned away from the front material element 8 is provided with a surface treatment t improving its surface tension. Similarly, the lower face 11 of the front material element 8 is provided with a surface treatment t improving its surface tension. Thus, after the introduction of the sectioning layer 13 on the lower face 11 of the front material element 8, then a surface treatment t is performed on the entire lower face 11 of the front material element 8. For example corona treatment can be performed as a surface treatment t. Thus, such a surface treatment makes it possible to increase the surface tension between the lower face 11 of the frontal material element 8 and the intermediate tie layer A, whereas the surface tension between the frontal material element 8 and the sectioning layer 13 remains lower since the surface treatment t has not been made between the sectioning layer 13 and the front material element 8.

Selon une autre caractéristique de l'invention, l'étiquette autoadhésive 1 comporte au moins une première couche de séparation 14 recouvrant au moins une partie de la couche d'adhésif 6. Selon une première variante de réalisation illustrée aux Fig 2 et 2A , l'étiquette autoadhésive de sécurité 1 comporte une seule couche de séparation 14. Il est à noter que la couche de séparation 14 est séparée ou non de la couche d'adhésif 6 à l'aide d'une ou de plusieurs couches de protection contre l'adhésif.According to another characteristic of the invention, the self-adhesive label 1 comprises at least a first separation layer 14 covering at least a portion of the adhesive layer 6. According to a first embodiment illustrated in FIGS. Fig 2 and 2A , the self-adhesive security label 1 comprises a single separation layer 14. It should be noted that the separation layer 14 is separated or not from the adhesive layer 6 with the aid of one or more layers of protection against the adhesive.

Cette première couche de séparation 14 est conçue de manière que la force de retenue entre l'ensemble multicouche mobile 3 et ladite première couche de séparation 14 soit inférieure à la force de décollage F de l'ensemble multicouche mobile 3 exercée pour assurer un décollement entre l'ensemble multicouche mobile 3 et l'ensemble multicouche de fixation 4. Ainsi, la première couche de séparation 14 reste solidaire de l'ensemble multicouche de fixation 4 lors de l'application d'une telle force de décollage F. A cet égard, la première couche de séparation 14 présente une force de retenue avec la couche d'adhésif 6, qui est supérieure à la force de décollage F. This first separation layer 14 is designed so that the retaining force between the moving multilayer assembly 3 and said first separation layer 14 is less than the take-off force F of the moving multilayer assembly 3 exerted to ensure separation between the moving multilayer assembly 3 and the multilayer fastening assembly 4. Thus, the first separation layer 14 remains integral with the multilayer fastening assembly 4 during the application of such a take-off force F. In this respect , the first separation layer 14 has a force of retained with the adhesive layer 6, which is greater than the take-off force F.

Cette première couche de séparation 14 est déposée puis activée sur la couche d'impression 12 avant d'être mise en contact avec la couche d'adhésif 6. Cette première couche de séparation 14 possède une tension de surface telle que la force de retenue la plus faible entre les différentes couches de l'étiquette est située :

  • entre la couche d'impression 12 et la première couche de séparation 14, en ce qui concerne la partie située en dehors de la couche de sectionnement 13 et,
  • d'un côté ou de l'autre de la couche de sectionnement 13, en ce qui concerne la partie située en relation de ladite couche de sectionnement 13.
This first separation layer 14 is deposited and then activated on the printing layer 12 before being brought into contact with the adhesive layer 6. This first separation layer 14 has a surface tension such that the holding force weaker between the different layers of the label is located:
  • between the printing layer 12 and the first separation layer 14, with regard to the part situated outside the cutting layer 13 and,
  • on one side or the other of the sectioning layer 13, with regard to the part situated in relation to said sectioning layer 13.

Comme expliqué ci-dessus, au niveau de la dite couche de sectionnement 13, la force de retenue la plus faible est entre la couche de sectionnement 13 et l'élément matériel frontal 8 (Fig. 2-2A et 3-3A). La force de retenue de la couche de sectionnement 13 avec l'élément matériel frontal 8 est inférieure à la force de retenue de la première couche de séparation 14. Ainsi, la partie 12a de la couche d'impression placée en position de superposition de la couche de sectionnement 13 reste solidaire de l'ensemble multicouche de fixation 4. La première couche de séparation 14 activée possède une liaison d'accroche en fonction de la tension de surface entre ladite couche de séparation et la couche sur laquelle elle est déposée à savoir la couche d'impression 12 dans l'exemple illustré.As explained above, at the level of said sectioning layer 13, the weakest retaining force is between the sectioning layer 13 and the front material element 8 ( Fig. 2-2A and 3-3A). The retention force of the severing layer 13 with the front material element 8 is less than the retention force of the first separation layer 14. Thus, the portion 12a of the printing layer placed in the superposition position of the sectioning layer 13 remains integral with the multilayer fixing assembly 4. The first activated separation layer 14 has a bonding bond depending on the surface tension between said separation layer and the layer on which it is deposited namely the print layer 12 in the illustrated example.

Après le soulèvement de l'ensemble multicouche mobile 3 par rapport à l'ensemble multicouche de fixation 4, l'ensemble multicouche de fixation 4 comporte comme face supérieure, la face supérieure 15 de la première couche de séparation 14 et la couche de sectionnement 13 tandis que l'ensemble multicouche mobile 3 comporte comme face inférieure, la face inférieure 16 de la couche d'impression 12, amputée de la partie 12a de la couche d'impression 12 superposée à la couche de sectionnement 13. Dans l'exemple illustré à la Fig. 1A , la partie 12a de la couche d'impression qui apparait sur la face supérieure 15 à travers la couche de sectionnement 13 correspond au mot « OPEN ». De manière symétrique, la face inférieure de l'ensemble multicouche mobile 3 laisse apparaitre en négatif le mot « OPEN ».After lifting the movable multilayer assembly 3 with respect to the multilayer fastener assembly 4, the multilayer fastener assembly 4 comprises, as an upper face, the upper face 15 of the first separation layer 14 and the cutting layer 13. while the movable multilayer assembly 3 comprises, as a lower face, the lower face 16 of the printing layer 12, amputated from the portion 12a of the printing layer 12 superimposed on the cutting layer 13. the example shown in the Fig. 1A , the portion 12a of the printing layer which appears on the upper face 15 through the severing layer 13 corresponds to the word "OPEN". In a symmetrical manner, the lower face of the moving multilayer assembly 3 shows the word "OPEN" in negative.

Selon une caractéristique avantageuse de réalisation, la face supérieure 15 de la première couche de séparation 14 est non adhésive.According to an advantageous embodiment, the upper face 15 of the first separation layer 14 is non-adhesive.

Selon une caractéristique avantageuse de réalisation, la face inférieure 16 de la couche d'impression 12 est également non adhésive.According to an advantageous embodiment, the lower face 16 of the printing layer 12 is also non-adhesive.

A titre d'exemple, la première couche de séparation 14 peut être un vernis activable du type « peel-off ».By way of example, the first separation layer 14 may be an activatable varnish of the "peel-off" type.

Selon une deuxième variante de réalisation illustrée en particulier aux Fig. 3-3A , l'étiquette autoadhésive 1 comporte une première couche de séparation 14 mais également une deuxième couche de séparation 17 recouvrant au moins la couche d'impression 12 réalisée sur la face inférieure 11 de l'élément matériel frontal 8. Cette deuxième couche de séparation 17 est en contact avec la première couche de séparation 14 puisqu'elle est interposée entre la couche d'impression 12 et la première couche de séparation 14. Avantageusement, les deux couches de séparation 14 et 17 sont réalisées de manière parfaitement superposée.According to a second embodiment variant illustrated in particular to Fig. 3-3A , the self-adhesive label 1 comprises a first separation layer 14 but also a second separation layer 17 covering at least the printing layer 12 made on the lower face 11 of the front material element 8. This second separation layer 17 is in contact with the first separation layer 14 since it is interposed between the printing layer 12 and the first separation layer 14. Advantageously, the two separation layers 14 and 17 are made perfectly superimposed.

Cette deuxième couche de séparation 17 est conçue de manière que la force de retenue entre les deux couches de séparation 14 et 17 soit inférieure à la force de décollage F de l'ensemble multicouche mobile 3, de sorte que la deuxième couche de séparation 17 reste solidaire de l'ensemble multicouche mobile 3 tandis que la première couche de séparation 14 reste solidaire de l'ensemble multicouche de fixation 4. Il est à noter que la deuxième couche de séparation 17 présente une force de retenue avec la couche d'impression 12, qui est supérieure à la force de décollage F. This second separation layer 17 is designed so that the retaining force between the two separation layers 14 and 17 is less than the take-off force F of the moving multilayer assembly 3, so that the second separation layer 17 remains secured to the moving multilayer assembly 3 while the first separating layer 14 remains integral with the multilayer fixing assembly 4. It should be noted that the second separation layer 17 has a retaining force with the printing layer 12 , which is greater than the detaching force F.

La deuxième couche de séparation 17 est déposée puis activée sur la couche d'impression 12 pour posséder une tension de surface déterminée. Par ailleurs, la première couche de séparation 14 est déposée puis activée sur la deuxième couche de séparation 17, avant d'être mise en contact avec la couche d'adhésif 6. La deuxième couche de séparation 17 possède une tension de surface déterminée de manière que la force de retenue la plus faible entre les différentes couches de l'étiquette est située :

  • entre la première couche de séparation 14 et la deuxième couche de séparation 17 en ce qui concerne la partie située en dehors de la couche de sectionnement 13 et,
  • d'un côté ou de l'autre de la couche de sectionnement 13, en ce qui concerne la partie située en relation de ladite couche de sectionnement 13.
The second separation layer 17 is deposited and then activated on the printing layer 12 to have a determined surface tension. Moreover, the first separation layer 14 is deposited and activated on the second separation layer 17, before being brought into contact with the adhesive layer 6 . The second separation layer 17 has a certain surface tension such that the lowest retaining force between the various layers of the label is located:
  • between the first separation layer 14 and the second separation layer 17 with regard to the part situated outside the cutting layer 13 and,
  • on one side or the other of the sectioning layer 13, with regard to the part situated in relation to said sectioning layer 13.

Comme expliqué ci-dessus, au niveau de la dite couche de sectionnement 13, la force de retenue la plus faible est entre la couche de sectionnement 13 et l'élément matériel frontal 8 (Fig. 3 et 3A ). La force de retenue de la couche de sectionnement 13 avec l'élément matériel frontal 8 ou avec la couche d'impression 12 voire la couche intermédiaire d'accroche A est inférieure à la force de retenue des couches de séparation 14 et 17. Ainsi, la partie 12a de la couche d'impression placée en position de superposition de la couche de sectionnement 13 reste solidaire de l'ensemble multicouche de fixation 4. As explained above, at the level of said sectioning layer 13, the weakest retaining force is between the sectioning layer 13 and the front material element 8 ( Fig. 3 and 3A ). The retaining force of the cutting layer 13 with the front material element 8 or with the printing layer 12 or even the intermediate fastening layer A is less than the retaining force of the separation layers 14 and 17. Thus, the portion 12a of the printing layer placed in superposition position of the cutting layer 13 remains integral with the multilayer fixing assembly 4.

Chaque couche de séparation 14 et 17 activée possède une liaison d'accroche en fonction de la tension de surface entre ladite couche de séparation et la couche sur laquelle elle est déposée ainsi que de la quantité déposée. Le contrôle de la quantité déposée permet de faire varier la force de séparation de l'ensemble mobile par rapport à l'ensemble fixe selon le besoin ou l'objet sur lequel sera déposée l'étiquette. Cette facilité de réglage permet de s'adapter très rapidement et facilement aux contraintes intrinsèques au collage sur des objets variés.Each activated separation layer 14 and 17 has a bonding bond depending on the surface tension between said separation layer and the layer on which it is deposited as well as the amount deposited. Controlling the quantity deposited makes it possible to vary the separation force of the moving assembly relative to the fixed assembly according to the need or the object on which the label will be deposited. This ease of adjustment makes it possible to adapt very quickly and easily to the intrinsic constraints of bonding on various objects.

Après le soulèvement de l'ensemble multicouche mobile 3 par rapport à l'ensemble multicouche de fixation 4, l'ensemble multicouche de fixation 4 comporte comme face supérieure, la face supérieure 15 de la première couche de séparation 14 et la couche de sectionnement 13 (Fig. 3A ) tandis que l'ensemble multicouche mobile 3 comporte comme face inférieure, la face inférieure 19 de la deuxième couche de séparation 17 amputée de sa partie placée en position de superposition avec la couche de sectionnement 13, la face supérieure 20 de la deuxième couche de séparation 17 étant en contact avec la couche d'impression 12. Comme expliqué précedemment en relation des Fig. 2-2A , la face inférieure de l'ensemble multicouche mobile 3 laisse apparaitre en négatif, un motif analogue à celui présenté par la face supérieure de l'ensemble multicouche de fixation 4. After lifting the movable multilayer assembly 3 with respect to the multilayer fastener assembly 4, the multilayer fastener assembly 4 comprises, as an upper face, the upper face 15 of the first separation layer 14 and the cutting layer 13. ( Fig. 3A ) while that the movable multilayer assembly 3 comprises, as a lower face, the lower face 19 of the second separation layer 17, amputated from its part placed in superposition position with the cutting layer 13, the upper face 20 of the second separation layer 17 being in contact with the printing layer 12. As explained above in relation to Fig. 2-2A , the lower face of the moving multilayer assembly 3 shows in negative a pattern similar to that presented by the upper face of the multilayer fastening assembly 4.

Selon une caractéristique avantageuse de réalisation, la face inférieure 19 de la deuxième couche de séparation 17, et par suite de l'ensemble multicouche mobile 3, est non adhésive. De même, comme indiqué ci-dessus, la face supérieure 15 de la première couche de séparation 14 est également non adhésive.According to an advantageous characteristic of embodiment, the lower face 19 of the second separation layer 17, and consequently of the moving multilayer assembly 3, is non-adhesive. Likewise, as indicated above, the upper face 15 of the first separation layer 14 is also non-adhesive.

A titre d'exemple, la première couche de séparation 14 peut être un vernis activable du type release tandis que la deuxième couche de séparation 17 peut être un vernis activable du type « peel-off ».By way of example, the first separation layer 14 may be an activatable varnish of the release type while the second separation layer 17 may be an activatable varnish of the "peel-off" type.

Il ressort de la description qui précède que l'étiquette autoadhésive 1 conforme à l'invention comporte un unique élément matériel à savoir, l'élément matériel frontal 8. Ainsi, l'ensemble multicouche de fixation 4 qui est fixé sur l'objet 2 ne comporte pas d'élément matériel.It follows from the above description that the self-adhesive label 1 according to the invention comprises a single material element namely, the front material element 8. Thus, the multilayer assembly 4 which is attached to the object 2 does not have a hardware element

L'étiquette autoadhésive 1 selon l'invention présente l'avantage de pouvoir être adaptée ou configurée de différentes manières, de manière à réaliser une étiquette de sécurité en vue d'assurer l'inviolabilité, l'authentification et la traçabilité des objets 2 sur lesquels une telle étiquette est destinée à être fixée.The self-adhesive label 1 according to the invention has the advantage of being adapted or configured in different ways, so as to produce a security label to ensure the inviolability, authentication and traceability of objects 2 on which such a label is intended to be fixed.

L'invention n'est pas limitée aux exemples décrits et représentés car diverses modifications peuvent y être apportées sans sortir de son cadre.The invention is not limited to the examples described and shown because various modifications can be made without departing from its scope.

Claims (10)

Etiquette autoadhésive de sécurité comportant un ensemble multicouche mobile (3) par rapport à un ensemble multicouche de fixation (4) sur un objet (2) lors de l'application d'une force de décollage, l'ensemble multicouche mobile (3) comportant un élément matériel frontal (8) transparent ou translucide et une couche d'impression (12) située sur au moins une partie de la face inférieure (11) de l'élément matériel frontal (8), l'ensemble multicouche de fixation (4) comportant une couche d'adhésif (6) portée par un support (7) duquel il est enlevable, caractérisée en ce qu'elle comporte : - une couche de sectionnement (13) interposée, entre l'élément matériel frontal (8) et la couche d'impression (12), de manière localisée et en position de superposition par rapport à une partie de la couche d'impression (12), la couche de sectionnement (13) présentant, par rapport à l'élément matériel frontal (8), une force de retenue qui est inférieure à la foce de décollage de l'ensemble multicouche mobile de sorte que la couche de sectionnement (13) et la couche d'impression (12a) située en position de superposition puisse être séparée de l'ensemble multicouche mobile (3) lors de l'application de la force de décollage tandis que la face inférieure (11) de l'élément matériel frontal (8) présente une force de retenue qui, en dehors de cette couche de sectionnement (13) est supérieure à la force de décollage, - au moins une première couche de séparation (14) recouvrant au moins une partie de la couche d'adhésif (6), cette couche de séparation (14) étant conçue de manière que la force de retenue entre l'ensemble multicouche mobile (3) et ladite couche de séparation (14) soit inférieure à la force de décollage de l'ensemble multicouche mobile (3) afin que la première couche de séparation (14) reste solidaire de l'ensemble multicouche de fixation (4), cette force de retenue étant supérieure à la force de retenue de la couche de sectionnement (13), de sorte que, lors de l'application d'une telle force de décollage, la partie (12a) de la couche d'impression (12) placée en position de superposition de la couche de sectionnement (13) reste solidaire de l'ensemble multicouche de fixation (4) . Self-adhesive security label comprising a movable multilayer assembly (3) with respect to a multilayer fastening assembly (4) on an object (2) during the application of a take-off force, the movable multilayer assembly (3) comprising a transparent or translucent front material element (8) and a printing layer (12) on at least a portion of the lower face (11) of the front material element (8), the multilayer fastening assembly (4). ) having a layer of adhesive (6) carried by a support (7) from which it is removable, characterized in that it comprises: a cutting layer (13) interposed between the front material element (8) and the printing layer (12) in a localized manner and in a superposition position with respect to a portion of the printing layer (12). ), the severing layer (13) having, relative to the front material member (8), a holding force which is less than the take-off foce of the moving multilayer assembly so that the severing layer (13) ) and the printing layer (12a) in the superposition position can be separated from the moving multilayer assembly (3) during the application of the take-off force while the underside (11) of the material element front end (8) has a retaining force which, outside of this cutting layer (13) is greater than the take-off force, at least a first separating layer (14) covering at least a portion of the adhesive layer (6), said separating layer (14) being designed so that the retaining force between the moving multilayer assembly (3) ) and said separation layer (14) is less than the take-off force of the moving multilayer assembly (3) so that the first separation layer (14) remains integral with the multilayer fixing assembly (4), this force retaining force being greater than the retaining force of the diaper severing device (13), so that, when applying such a peel force, the portion (12a) of the printing layer (12) in the lay-up position of the severing layer (13) remains secured to the multilayer fastening assembly (4). Etiquette autoadhésive selon la revendication 1 caractérisée en ce qu'elle comprend une deuxième couche de séparation (17) recouvrant au moins la couche d'impression (12), en contact avec la première couche de séparation (14), la deuxième couche de séparation (17) étant conçue de manière que la force de retenue entre les deux couches de séparation (14, 17) soit inférieure à la force de décollage de l'ensemble multicouche mobile (3), de sorte que la deuxième couche de séparation (17) reste solidaire de l'ensemble multicouche mobile (3) tandis que la première couche de séparation (14) reste solidaire de l'ensemble multicouche de fixation (4). Self-adhesive label according to claim 1, characterized in that it comprises a second separation layer (17) covering at least the printing layer (12), in contact with the first separation layer (14) , the second separation layer (17) being designed so that the holding force between the two separating layers (14, 17) is less than the take-off force of the moving multilayer assembly (3), so that the second separating layer (17) ) remains secured to the movable multilayer assembly (3) while the first separation layer (14) remains integral with the multilayer assembly (4). Etiquette autoadhésive selon la revendication 1, caractérisée en ce que la première couche de séparation (14) est séparée de la couche d'adhésif à l'aide d'une ou de plusieurs couches de protection contre l'adhésif.Self-adhesive label according to claim 1, characterized in that the first separating layer (14) is separated from the adhesive layer by one or more layers of protection against the adhesive. Etiquette autoadhésive selon l'une des revendications 1 à 3, caractérisée en ce que la couche de sectionnement (13) est réalisée par le dépôt d'un mélange encre, vernis, décolorant, additifs.Self-adhesive label according to one of claims 1 to 3, characterized in that the cutting layer (13) is formed by depositing a mixture of ink, varnish, bleach, additives. Etiquette autoadhésive selon l'une des revendications 1 à 4 caractérisée en ce que la couche de sectionnement (13) est transparente ou translucide, colorée ou non.Self-adhesive label according to one of claims 1 to 4 characterized in that the cutting layer (13) is transparent or translucent, colored or not. Etiquette autoadhésive selon la revendication 1, caractérisée en ce que la couche d'impression (12) est séparée de la couche de sectionnement (13) ou de de l'élément matériel frontal (8) par l'intermédiaire d'une couche intermédiaire d'accroche (A). Self-adhesive label according to claim 1, characterized in that the printing layer (12) is separated from the cutting layer (13) or the front material element (8) via an intermediate layer of hangs (A). Etiquette autoadhésive selon l'une des revendications 1 à 6, caractérisée en ce que la face de la couche de sectionnement (13), tournée à l'opposée de l'élément matériel frontal (8) ainsi que la face inférieure (11) de l'élément matériel frontal (8) sont pourvues d'un traitement de surface améliorant leur tension de surface.Self-adhesive label according to one of claims 1 to 6, characterized in that the face of the cutting layer (13) facing away from the front material element (8) and the lower face (11). the front material element (8) is provided with a surface treatment improving their surface tension. Etiquette autoadhésive selon la revendication 1, caractérisée en ce que la première couche de séparation (14) est déposée puis activée sur la couche d'impression (12), cette première couche de séparation (14) possédant une tension de surface telle que la force de retenue la plus faible entre les couches de l'étiquette est située entre la couche d'impression (12) et la première couche de séparation (14), en ce qui concerne la partie située en dehors de la couche de sectionnement (13), et d'un côté ou de l'autre de la couche de sectionnement (13), en ce qui concerne la partie située en 2relation avec ladite couche se sectionnement (13). Self-adhesive label according to claim 1, characterized in that the first separating layer (14) is deposited and then activated on the printing layer (12) , this first separating layer (14) having a surface tension such that the force the smallest retaining wall between the layers of the label is located between the printing layer (12) and the first separating layer (14), with regard to the part situated outside the cutting layer (13) , and one side or the other of the isolating layer (13), as regards the portion 2 in relation to said cutting layer (13). Etiquette autoadhésive selon la revendication 2, caractérisée en ce que la deuxième couche de séparation (17) est déposée puis activée sur la couche d'impression (12), pour posséder une tension de surface déterminée, et en ce que la première couche de séparation (14) est déposée puis activée sur la deuxième couche de séparation (17) pour posséder une tension de surface déterminée de manière que la force de retenue la plus faible entre les couches de l'étiquette est située entre la première couche de séparation (14) et la deuxième couche de séparation (17) en ce qui concerne la partie située en dehors de la couche de sectionnement (13), et d'un côté ou de l'autre de la couche de sectionnement (13), en ce qui concerne la partie située en relation avec ladite couche se sectionnement (13). Self-adhesive label according to claim 2, characterized in that the second separating layer (17) is deposited and then activated on the printing layer (12), to have a determined surface tension, and in that the first separation layer (14) is deposited and then activated on the second separation layer (17) to have a determined surface tension so that the lowest retaining force between the label layers is between the first separation layer (14). ) and the second separating layer (17) with regard to the part situated outside the cutting layer (13), and on one side or the other of the cutting layer (13), with respect to relates to the portion located in relation to said sectioning layer (13). Etiquette autoadhésive selon la revendication 9, caractérisée en ce que chaque couche de séparation (14, 17) activée possède une liaison d'accroche qui dépend de la tension de surface entre ladite couche de séparation et la couche sur laquelle elle est déposée ainsi que de la quantité déposée.Self-adhesive label according to claim 9, characterized in that each activated separating layer (14, 17) has a bonding bond which depends on the surface tension between said separating layer and the layer on which it is deposited, as well as the quantity deposited.
EP13197926.2A 2012-12-18 2013-12-18 Self-adhesive label with concealed security message Active EP2747059B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1262212A FR2999770B1 (en) 2012-12-18 2012-12-18 AUTOCOLLATING LABEL WITH SAFETY MESSAGE MASK

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EP2747059A1 true EP2747059A1 (en) 2014-06-25
EP2747059B1 EP2747059B1 (en) 2020-04-01

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10283017B2 (en) 2014-12-19 2019-05-07 Arjobex Adhesive label
EP4125077A1 (en) * 2021-07-26 2023-02-01 Securikett Ulrich & Horn GmbH Flat sealing element

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5294470A (en) 1988-05-13 1994-03-15 Ewan Frederick R Tamper indicating containers and seals
EP0657859A1 (en) 1993-12-06 1995-06-14 The Kendall Company Tamper-evident tape
EP2096154A1 (en) * 2008-02-28 2009-09-02 tesa SE Multi-layer adhesive for use as tamper-proof tape

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5294470A (en) 1988-05-13 1994-03-15 Ewan Frederick R Tamper indicating containers and seals
EP0657859A1 (en) 1993-12-06 1995-06-14 The Kendall Company Tamper-evident tape
EP2096154A1 (en) * 2008-02-28 2009-09-02 tesa SE Multi-layer adhesive for use as tamper-proof tape

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10283017B2 (en) 2014-12-19 2019-05-07 Arjobex Adhesive label
EP4125077A1 (en) * 2021-07-26 2023-02-01 Securikett Ulrich & Horn GmbH Flat sealing element
WO2023006752A1 (en) * 2021-07-26 2023-02-02 Securikett Ulrich & Horn Gmbh Planar sealing element

Also Published As

Publication number Publication date
EP2747059B1 (en) 2020-04-01
FR2999770B1 (en) 2018-05-04
ES2796234T3 (en) 2020-11-26
FR2999770A1 (en) 2014-06-20

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