EP1522984B1 - Assemblage à feuilles pour étiquettes inviolables et procédé de fabrication - Google Patents

Assemblage à feuilles pour étiquettes inviolables et procédé de fabrication Download PDF

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Publication number
EP1522984B1
EP1522984B1 EP04104748A EP04104748A EP1522984B1 EP 1522984 B1 EP1522984 B1 EP 1522984B1 EP 04104748 A EP04104748 A EP 04104748A EP 04104748 A EP04104748 A EP 04104748A EP 1522984 B1 EP1522984 B1 EP 1522984B1
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EP
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Prior art keywords
foil
weakening
weakened
lines
layer
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Application number
EP04104748A
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German (de)
English (en)
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EP1522984A3 (fr
EP1522984A2 (fr
Inventor
Uwe Dr. Birk
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schreiner Group GmbH and Co KG
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Schreiner Group GmbH and Co KG
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Classifications

    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
    • Y10T156/1056—Perforating lamina
    • Y10T156/1057—Subsequent to assembly of laminae
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
    • Y10T156/1082—Partial cutting bonded sandwich [e.g., grooving or incising]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]

Definitions

  • the present invention relates to a tamper-resistant film structure and a method for its production.
  • weakening lines are also meant interrupt lines, i. Lines along the course of which a film or film layer is severed through its entire thickness. Weakening lines are usually punching or punching lines, but can also be designed as cuts, perforations, creases or the like. The lines of weakness prevent adhering the removal of the complete film or the complete label, as this or this breaks along the lines of weakness or from these into pieces. To reassemble the items is not possible or only with great effort.
  • the lines of weakness within a label run continuously from edge to edge, there is the problem that the application of the label is difficult, since the portions of the label formed by the lines of weakness between the dispensing of the label carrier web commonly used from Abziehmaterial and sticking on the intended object only weak - held together, for example, by the not mitgeschwachtte adhesive layer of the label.
  • Such labels are the usual standard in price labeling in supermarkets.
  • the lines of weakness may also be interrupted by webs, whereby the film surface remains coherent.
  • this usually only works with selected geometries of the label and the arrangement of the lines of weakness, and that is because labels are usually punched out of continuous material webs, which were provided before the punching process with lines of weakness.
  • unfavorable punching position of the labels relative to the lines of weakness larger areas, for example, at the corners of a label, be separated by a line of weakness from the rest of the label.
  • Labels and foils are usually labeled or must be labeled, often individually. Laser marking procedures can sometimes be used here.
  • a laser-sensitive layer in the film structure to be labeled locally changes its color by laser irradiation or is ablated locally by laser action.
  • the caption is created by guiding the laser along the desired character contours.
  • the laser-sensitive layer can be under a laser-permeable laminate, so that the removed particles do not escape into the atmosphere.
  • the laser-sensitive layer may also be formed as the uppermost layer of the film structure, so that the particles are released.
  • a security sheet which is adherable to a substrate and which contains an identification medium.
  • an identification medium By targeted damage to a barrier layer by means of laser action, a diffusible identification medium can be selectively released locally. If the security film is adhered to the substrate, the identification medium results in a permanent marking of the substrate.
  • the present invention has the object to provide a tamper-proof film structure for labels and the like, in which the problems described do not occur or only reduced. If possible, the film structure should also be suitable for laser-writable films and labels. Likewise, the present invention has the object to provide a cost-effective and leading to a high product quality Hersteitungs compiler for such a film structure.
  • the object is achieved by a method according to claim 1.
  • Preferred embodiments of the method according to the invention can be configured according to one of claims 2-17. (The term "majority of the label” means more than half of the label size in the corresponding direction.)
  • the object is achieved by a film structure according to claim 18.
  • Preferred embodiments of the film structure according to the invention can be designed according to one of claims 19-24.
  • the present invention provides a new way to ensure protection against tampering by using a foil which is damaged by a laser beam but not cut through.
  • the degree of film weakening can be controlled much more accurately than in conventional punching or cutting processes for producing lines of weakness.
  • inscription and manipulation protection can be applied within a single operation in a way that is surprising for a person skilled in the art, which brings decisive advantages in terms of cost effectiveness and quality management.
  • Film structure 101 consists essentially of a weakened by laser action film layer 103, which is coated with adhesive 102 on the underside. It is advisable to use for the film layer 103 a polyester film which has a sufficient tear strength and heat stability in order to keep the film structure 101 stable.
  • Fig. 2 is the same, in the final numerals of the reference numerals analogously numbered film structure 201 during the treatment by a laser beam 204 shown.
  • the laser beam 204 injures the film layer 203 in an upper portion 203b while remaining intact in a lower portion 203a.
  • the undamaged lower portion 203a preferably has a thickness of less than half, more preferably less than one third of the total thickness of the film layer 203.
  • the weakenable by laser action film layer 103, 203 must because of the selection of materials, their thickness and depending on the energy of the laser 204 so be guaranteed that it has by their injury the above-mentioned properties of sufficient stability (to ensure repositionability) and at the same time sufficient injury (to ensure tamper resistance).
  • a particularly preferred embodiment of a film structure 301 in FIG Fig. 3 consists essentially of a laser-vulnerable film layer 303, which is additionally provided on the upper side with a laser-sensitive layer 307. Underneath is a further film layer 305, which is provided on the underside with an adhesive 302. To prevent manipulation against undesired removal of the film structure or a label formed therefrom, weakenings 306, for example in the form of punched lines, are provided in the further film layer 305.
  • the film 401 which is numbered analogously in the final digits of the reference numbers, is processed with a laser beam 404.
  • the laser-sensitive layer 407 is removed in the intended areas for labeling.
  • the weakened by laser action film layer 403 is weakened in an upper portion 403b, while remaining intact in the lower portion 403a.
  • Fig. 5 shows analogously to Fig. 3-4 a film composite 501 with an adhesive coating 502 and a punchings 506 having additional film layer 505.
  • This is the same basic structure as in 3 and 4 , With the difference that it is not at the laser-sensitive layer 507 to an ablation layer, but a layer that changes in the treated areas by laser light 508 its color. Even with such a laser-sensitive layer 507, if the laser 504 is used correctly, sufficient radiation can penetrate to injure the underlying laser-weakenable film layer 503 in its upper region 503b, while the lower region 503a remains unhurt.
  • the weakened by laser action film layer 303, 403 in Fig. 3 - 4th it is preferably a transparent support layer, which ensures that a contrast between the laser ablatable layer 307, 407 and the additional film layer 305, 405 remains recognizable.
  • the weakenable by laser action film layer 503 in their color and opacity is freely determinable, since it is not visible even after the erosion.
  • Fig. 6 is a set up for a labeling process illustrated, as it is in principle DE 196 42 040 C1 is known. It is a laser film 601, in which the weakened by laser action film layer 603 is disposed above the laserablatierbaren layer 607. Again, with skillful adjustment of the parameter of the laser 604, it is possible to violate the laser-weakenable film layer 603 while simultaneously ablating the laser-sensitive layer 607, which may be metallization. Below the laser-sensitive layer 607 is again an attenuation line 606 having additional film layer 605 with adhesive coating 602 on the underside.
  • Fig. 7 shows the variant of a film structure 701, in which the weakened by the action of the laser 704 film layer 703 is below a label 707 or serves as a basis for a later inscription 707.
  • Fig. 8 shows the weakenable by the action of the laser 804 film layer 803 as (in this case, preferably transparent) laminate over a label 807th
  • an additional film layer 705, 805 with weakenings 706, 806 and an adhesive coating 702, 802 is again provided.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Laminated Bodies (AREA)
  • Making Paper Articles (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Laser Beam Processing (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Claims (34)

  1. Procédé pour la fabrication d'une structure de feuille protégée contre la manipulation, comprenant au moins les étapes suivantes :
    - mise à disposition d'une structure de feuille (101, 201, 301, 401, 501, 601, 701, 801) comportant au moins une couche de feuille (103, 203, 303, 403, 503, 603, 703, 803) affaiblissable sous l'action d'un laser ainsi qu'un revêtement adhésif sur la face inférieure (102, 202, 302, 402, 502, 602, 702, 802) pour le collage sur un support,
    - réalisation de lignes d'affaiblissement dans l'une au moins des couches de feuille (103, 203, 303, 403, 503, 603, 703, 803) de la structure de feuille (101, 201, 301, 401, 501, 601, 701, 801) par l'action d'un laser, de telle manière que lesdites lignes d'affaiblissement lèsent l'au moins une des couches de feuilles affaiblissables (203, 303, 403, 503, 603, 703, 803) respectivement dans une zone partielle supérieure (203b, 303b, 403b, 503b, 603b, 703b, 803b), alors que l'au moins une des couches de feuille affaiblissables (203a, 303a, 403a, 503a, 603a, 703a, 803a) reste intacte dans une zone partielle inférieure, sachant que l'épaisseur de la couche de feuille (103, 203, 303, 403, 503,603, 703, 803) est affaiblie le long de chacune des lignes d'affaiblissement à la moitié ou à moins de son épaisseur initiale.
  2. Procédé selon l'une quelconque des revendications précédentes, sachant que le degré d'affaiblissement de la couche de feuille (103, 203, 303, 403, 503, 603, 703, 803) en raison des lignes d'affaiblissement et la force d'adhérence du revêtement adhésif (102, 202, 302, 402, 502, 602, 702, 802) sur le support sont accordés l'un sur l'autre de telle manière que la structure de feuille se déchire à toute tentative de l'arracher du support.
  3. Procédé selon l'une quelconque des revendications 1 ou 2, sachant que l'épaisseur de la couche de feuille (103, 203, 303, 403, 503, 603, 703, 803) est affaiblie le long de chaque ligne d'affaiblissement au tiers ou à moins de son épaisseur initiale.
  4. Procédé selon l'une quelconque des revendications précédentes, sachant que la structure de feuille est mise à disposition sous la forme d'une étiquette.
  5. Procédé selon l'une quelconque des revendications 1-3, sachant que la structure de feuille est mise à disposition sous la forme d'un pan de feuille continu et que le procédé comprend en outre le découpage ou l'estampage d'étiquettes depuis le pan de feuille continu.
  6. Procédé selon l'une quelconque des revendications précédentes, sachant que deux lignes d'affaiblissement au moins existent sur chaque étiquette.
  7. Procédé selon l'une quelconque des revendications 4-6, sachant que sur chacune des étiquettes, une au moins des lignes d'affaiblissement s'étend jusqu'au bord de l'étiquette.
  8. Procédé selon l'une quelconque des revendications 4-7, sachant que l'une au moins des lignes d'affaiblissement s'étend dans le sens de sa plus grande extension sur au moins la majeure partie de l'étiquette.
  9. Procédé selon l'une quelconque des revendications 4-8, comprenant en outre le collage de chaque étiquette sur un support et sachant que les lignes d'affaiblissement sont réalisées après le collage.
  10. Procédé selon l'une quelconque des revendications précédentes, comprenant en outre l'impression et/ou le marquage, par une inscription, de la structure de feuille ou des étiquettes.
  11. Procédé selon l'une quelconque des revendications précédentes, sachant que le procédé comprend une étape d'inscription au laser, dans laquelle des contours de caractères et/ou graphiques sont réalisés par l'action d'un laser.
  12. Procédé selon la revendication 11, sachant qu'il est mis à disposition une structure de feuille comportant une couche supplémentaire sensible au laser (307, 407, 507, 607).
  13. Procédé selon la revendication 12, sachant que la couche supplémentaire sensible au laser (307, 407, 507) est une couche d'encre.
  14. Procédé selon l'une quelconque des revendications 11-13, sachant que l'étape d'inscription au laser comprend la réalisation des lignes d'affaiblissement, de telle manière que les contours de caractères et/ou graphiques jouent le rôle de lignes d'affaiblissement.
  15. Procédé selon l'une quelconque des revendications précédentes, sachant qu'il est mis à disposition une structure de feuille (301, 401, 501, 601, 701, 801) comportant au moins une couche de feuille pré-affaiblie supplémentaire (305, 405, 505, 605, 705, 805) entre la couche de feuille affaiblissable par l'action d'un laser (303, 403, 503, 603, 703, 803) et le revêtement adhésif.
  16. Procédé selon la revendication 15, sachant que la couche de feuille supplémentaire (305, 405, 505, 605, 705, 805) est pré-affaiblie par des lignes d'affaiblissement (306, 406, 506, 606, 706, 806).
  17. Procédé selon la revendication 16, sachant que l'allure des lignes d'affaiblissement dans la couche de feuille affaiblissable par l'action d'un laser (303, 403, 503, 603, 703, 803) s'écarte en projection de l'allure des lignes d'affaiblissement (306, 406, 506, 606, 706, 806) de la couche de feuille pré-affaiblie (305, 405, 505, 605, 705, 805) si un plan de projection parallèle aux couches de feuille (303, 403, 503, 603, 703, 803, 305, 405, 505, 605, 705, 805) est admis.
  18. Structure de feuille protégée contre la manipulation, comportant au moins une couche de feuille affaiblissable par l'action d'un laser (103, 203, 303, 403, 503, 603, 703, 803) avec au moins une ligne d'affaiblissement générée par laser et un revêtement adhésif sur la face inférieure (102, 202, 302, 402, 502, 602, 702, 802), sachant l'au moins une ligne d'affaiblissement lèse l'au moins une couche de feuille affaiblissable (203, 303, 403, 503, 603, 703, 803) dans une zone partielle supérieure (203b, 303b, 403b, 503b, 603b, 703b, 803b), alors que l'au moins une couche de feuille affaiblissable reste intact dans une zone partielle inférieure (203a, 303a, 403a, 503a, 603a, 703a, 803a), sachant que l'épaisseur de la couche de feuille affaiblissable par l'action d'un laser (103, 203, 303, 403, 503, 603, 703, 803) le long de la ligne d'affaiblissement représente la moitié ou moins de la moitié de l'épaisseur du reste de la couche de feuille affaiblissable par l'action d'un laser (103, 203, 303,403, 503, 603, 703, 803).
  19. Structure de feuille selon la revendication 18, sachant que le degré d'affaiblissement de la couche de feuille affaiblissable par l'action d'un laser (103, 203, 203, 303,403, 503, 603, 703, 803) en raison des lignes d'affaiblissement et la force d'adhérence du revêtement adhésif (102, 202, 302, 402, 502, 602,702, 702, 802) sur un support conforme à la destination sont accordés l'un sur l'autre de telle manière que la structure de feuille se déchire à toute tentative de l'arracher du support.
  20. Structure de feuille selon l'une quelconque des revendications 18 ou 19, sachant que l'épaisseur de la couche de feuille affaiblissable par l'action d'un laser (103, 203, 303, 403, 503, 603, 703, 803) le long de chaque ligne d'affaiblissement représente un tiers ou moins du tiers de l'épaisseur du reste de la couche de feuille affaiblissable par l'action d'un laser (103, 203, 303, 403, 503, 603, 703, 803).
  21. Structure de feuille selon l'une quelconque des revendications 18-20, comportant une impression (707, 807) ou étant impressible.
  22. Structure de feuille selon l'une quelconque des revendications 18-21, sachant que la couche de feuille affaiblissable par l'action d'un laser (103, 203, 303, 403, 503, 603, 703, 803) est transparente ou partiellement transparente.
  23. Structure de feuille selon l'une quelconque des revendications 18-21, sachant que la couche de feuille affaiblissable par l'action d'un laser (103, 203, 303, 403, 503, 603, 703, 803) est opaque.
  24. Structure de feuille selon l'une quelconque des revendications 18-23, sachant que la couche de feuille affaiblissable par l'action d'un laser (103, 203, 303, 403, 503, 603, 703, 803) est une feuille en polyester.
  25. Structure de feuille selon l'une quelconque des revendications 18-24, comportant en outre une couche sensible au laser (307, 407, 507, 607).
  26. Structure de feuille selon la revendication 25, sachant que la couche sensible au laser (307, 407, 607) est localement suppressible par l'action d'un laser.
  27. Structure de feuille selon la revendication 25, sachant que la couche sensible au laser (507) montre une variation de coloration en cas d'action d'un laser.
  28. Structure de feuille selon l'une quelconque des revendications 18-27, sachant que la structure de feuille comporte au moins une couche de feuille pré-affaiblie supplémentaire (305, 405, 505, 605, 705, 805) entre la couche de feuille affaiblissable par l'action d'un laser (103, 203, 303, 403, 503, 603, 703, 803) et le revêtement adhésif (102, 202, 302, 402, 502, 602, 702, 802).
  29. Structure de feuille selon la revendication 28, sachant que la couche de feuille supplémentaire (305, 405, 505, 605, 705, 805) est pré-affaiblie par des lignes d'affaiblissement (306, 406, 506, 606, 606,706, 806).
  30. Structure de feuille selon la revendication 29, sachant que l'allure des lignes d'affaiblissement dans la couche de feuille affaiblissable par l'action d'un laser (303, 403, 503, 603, 703, 803) s'écarte en projection de l'allure des lignes d'affaiblissement (306, 406, 506, 606, 706, 806) de la couche de feuille pré-affaiblie (305,405, 405, 505, 605, 606,706, 805) si un plan de projection parallèle aux couches de feuille est admis.
  31. Structure de feuille selon l'une quelconque des revendications 18-30, sachant que des lignes d'affaiblissement dans la couche de feuille affaiblissable parl'actiond'unlaser (103, 203, 303,403, 503, 603, 703,803) présentent la forme de contours de caractères et/ou graphiques.
  32. Structure de feuille selon l'une quelconque des revendications 18-31, sachant que la structure de feuille est réalisée sous la forme d'une étiquette.
  33. Structure de feuille selon la revendication 32, sachant que l'une au moins des lignes d'affaiblissement dans la couche de feuille affaiblissable par l'action d'un laser (103, 203, 303, 403, 503, 603, 703, 803) s'étend jusqu'au bord de l'étiquette.
  34. Structure de feuille selon la revendication 32-33, sachant que l'une au moins des lignes d'affaiblissement dans la couche de feuille affaiblissable par l'action d'un laser (103, 203, 303,403, 503, 603, 703, 803) s'étend dans le sens de sa plus grande extension sur au moins la majeure partie de l'étiquette.
EP04104748A 2003-10-08 2004-09-29 Assemblage à feuilles pour étiquettes inviolables et procédé de fabrication Revoked EP1522984B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10346683 2003-10-08
DE10346683.5A DE10346683C5 (de) 2003-10-08 2003-10-08 Manipulationsgeschützter Folienaufbau für Etiketten und Verfahren zu dessen Herstellung

Publications (3)

Publication Number Publication Date
EP1522984A2 EP1522984A2 (fr) 2005-04-13
EP1522984A3 EP1522984A3 (fr) 2006-08-16
EP1522984B1 true EP1522984B1 (fr) 2011-03-09

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EP04104748A Revoked EP1522984B1 (fr) 2003-10-08 2004-09-29 Assemblage à feuilles pour étiquettes inviolables et procédé de fabrication

Country Status (5)

Country Link
US (1) US7431790B2 (fr)
EP (1) EP1522984B1 (fr)
JP (1) JP4227948B2 (fr)
AT (1) ATE501501T1 (fr)
DE (2) DE10346683C5 (fr)

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DE102007033702A1 (de) 2007-07-16 2009-01-22 Jenoptik Automatisierungstechnik Gmbh Sicherheitsklebeband und Verfahren zu dessen Herstellung
US9562921B2 (en) * 2008-03-25 2017-02-07 Ortho-Clinical Diagnostics, Inc. Immunodiagnostic test element having weakened foil layer
WO2010101037A1 (fr) * 2009-03-06 2010-09-10 株式会社ラクテル Indicateur, son procédé de traitement et système de gestion d'informations
FR2957182B1 (fr) * 2010-03-04 2012-07-13 Peugeot Citroen Automobiles Sa Etiquette multicouche presentant des motifs predecoupes
DE102016108216B4 (de) 2016-05-03 2023-11-02 Schreiner Group Gmbh & Co. Kg Folienaufbau mit Schutz vor Manipulation

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JP3632249B2 (ja) 1995-07-31 2005-03-23 トッパン・フォームズ株式会社 レーザ加工装置
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Publication number Priority date Publication date Assignee Title
EP3726506B1 (fr) 2019-04-19 2022-10-26 Securikett Ulrich & Horn GmbH Feuille de scellement

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US7431790B2 (en) 2008-10-07
DE10346683C5 (de) 2014-08-07
DE10346683B4 (de) 2007-08-23
DE10346683A1 (de) 2005-05-12
JP4227948B2 (ja) 2009-02-18
DE502004012281D1 (de) 2011-04-21
ATE501501T1 (de) 2011-03-15
US20050079320A1 (en) 2005-04-14
JP2005115379A (ja) 2005-04-28
EP1522984A3 (fr) 2006-08-16
EP1522984A2 (fr) 2005-04-13

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