EP1926791A1 - Ruban auto-adhesif - Google Patents

Ruban auto-adhesif

Info

Publication number
EP1926791A1
EP1926791A1 EP06778286A EP06778286A EP1926791A1 EP 1926791 A1 EP1926791 A1 EP 1926791A1 EP 06778286 A EP06778286 A EP 06778286A EP 06778286 A EP06778286 A EP 06778286A EP 1926791 A1 EP1926791 A1 EP 1926791A1
Authority
EP
European Patent Office
Prior art keywords
layer
self
adhesive tape
adhesive
tape according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP06778286A
Other languages
German (de)
English (en)
Inventor
Christian Kreft
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.)
Tesa SE
Original Assignee
Tesa SE
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tesa SE filed Critical Tesa SE
Publication of EP1926791A1 publication Critical patent/EP1926791A1/fr
Withdrawn legal-status Critical Current

Links

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
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/29—Laminated material
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
    • C09J2203/338—Applications of adhesives in processes or use of adhesives in the form of films or foils as tamper-evident tape or label
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
    • C09J2301/16—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the structure of the carrier layer
    • C09J2301/162—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the structure of the carrier layer the carrier being a laminate constituted by plastic layers only

Definitions

  • the invention relates to a self-adhesive tape with an adhesive layer.
  • Such self-adhesive tapes for example, from plastic materials suitable for this purpose are known and familiar to the person skilled in various embodiments. Among other things, they are used for packaging or gluing packaging of products worthy of protection. Among other things, a cardboard box or a cardboard with such a self-adhesive tape can be sealed and sealed in a conventional manner to the package, for example. to send by mail.
  • the self-adhesive tape can be designed as a security adhesive tape in order to be able to recognize tampering with the packaging after it has been removed from the packaging.
  • a self-adhesive tape of multilayer construction can have a defined adhesion strength between two layers in order to produce a splitting when the self-adhesive tape is removed, so that part of the self-adhesive tape remains visible on the packaging.
  • DE 81 30 861 U1 discloses a multilayer label of a thin and a thick self-supporting, opaque pigmented lacquer layer. Both layers each consist of an electron beam-hardened, solvent-free applied paint, wherein the layer thicknesses are different.
  • the labeling of the label takes place in that with the aid of a laser, the upper thin lacquer layer is burned away, so that the lower thick lacquer layer is visible, wherein the lower layer preferably has a contrasting color to the upper one. This is a kind of engraving to make manipulations on the label visible. Due to the brittleness of the paint layers, the label can be removed from a substrate to which it was glued, virtually only by destruction.
  • EP 0 645 747 A1 describes a laser-inscribable multilayer label material which is composed of a first and an optically differing second layer, wherein the first layer can be removed by means of laser radiation corresponding to a desired font or print image with visualization of the surface of the second layer. Between the layers, a transparent plastic film forming a carrier layer is furthermore arranged.
  • DE 44 21 865 A1 discloses a single-layer laser label of a carrier layer made of plastic, which contains an additive which shows a color change under laser irradiation.
  • the carrier layer is coated on one side with a self-adhesive, which is optionally covered with a release paper or release film.
  • the carrier film consists of a lacquer which is preferably radiation-cured.
  • DE 199 09 723 A1 describes a security film with a carrier layer, in which an identification medium is contained. With the help of a non-contact labeling process, the diffusion properties of this identification medium can be specifically selectively and locally changed. If the security film labeled in this way is adhered to a workpiece, the identification medium diffuses toward the substrate surface, where it causes a detectable reaction. In this case, this diffusion or reaction takes place only in those areas in the substrate surface in which the diffusion capability was triggered or not obstructed by the inscription process in order to enable a clear identification of the workpiece.
  • the core idea of the invention is that the splitting of a self-adhesive tape when redrawing the self-adhesive tape, for example, from a package does not occur between two directly over the entire surface over the entire adhesive tape adjacent layers, but that the support layer is only partially provided with an additional primer layer.
  • the materials of the carrier layer and of the primer layer can be selected by the person skilled in the art such that a strong adhesive force or a permanent adhesive bond is formed between these two layers.
  • a release layer is applied over the entire area both to the previously applied primer layer and to the not yet coated sections of the carrier layer.
  • the material of the separating layer is in turn selected so that the separating layer adheres very well to the primer layer and only lower adhesive forces occur between the separating layer and the hitherto uncoated sections of the carrier layer.
  • an adhesive layer is applied to this release layer in turn in a conventional manner as an adhesive from suitable materials or adhesives for this purpose to stick the self-adhesive tape, for example on a cardboard packaging.
  • an additional removable cover sheet may also be provided here.
  • the carrier layer is detached from the substrate, due to the different set adhesive forces the release layer with lower adhesive force in the sections that are not provided with the additional primer layer, detached from the carrier layer and in the areas in which the additional primer layer was applied, this is removed together with the support layer and the release layer from the substrate.
  • a negative mask of those portions which have previously been provided with the additional primer layer on the carrier layer becomes visible.
  • the primer layer is preferably applied in such a pattern on the carrier layer, that when removing the Carrier layer by an unauthorized person, for example, a voice message "Caution” or "package opened” is visible.
  • a self-adhesive tape is obtained in which before the sticking of the self-adhesive tape on a package no labels or the like are visible and after the unauthorized detachment of the self-adhesive tape still the
  • the advantage of the invention is that a reliable splitting of the self-adhesive tape during redrawing is obtained by the additional application in sections of a primer layer.
  • the self-adhesive tape can be used not only to identify an unauthorized opening of a package, but also to provide any surfaces with lettering, logos or the like.
  • the primer layer is applied with the desired pattern on the carrier layer, then the release layer and then the self-adhesive tape glued in a known manner to the substrate and again subtracted, so that the desired lettering remain on the ground.
  • a suitable choice of materials or the respective adhesive forces in particular all types of cardboard or paper such as paper grades of waste paper can be provided with appropriate labels.
  • the separation layer is formed so as to change its color locally under laser irradiation.
  • Corresponding materials which can be introduced into the release layer and show a color change under laser radiation are known to the person skilled in the art.
  • the release layer can be dyed in the desired manner or labeled with lettering, logos or barcodes. After applying the self-adhesive tape to a package and redrawing markings remain in the desired color on the packaging. In the same way you can also papers, cardboard and the like may be provided with colored markings.
  • the remaining sections can either be dyed uni over the entire surface or in the remaining sections, in turn, can be recognized by targeted lasering symbols, logos or the like.
  • known Nd-Yag solid-state lasers having a wavelength of 1064 nm can be used for inscribing the separating layer.
  • the laser pigment embedded in the separating layer absorbs the energy, so that local heating takes place here and, for example, carbonization of the adjacent polymer matrix forming the separating layer takes place.
  • the relevant parameters for a label such as power, frequency and labeling speed can be determined by a person skilled in the art depending on the selected laser or laser pigments.
  • the carrier layer formed by a stretched thermoplastic film, which can be prepared and processed in a simple manner.
  • the thermoplastic film on the opposite side of the primer layer may be provided with a release coating in order to simplify their handling.
  • composition of the release layer is proposed that it is composed of the following tabular listed raw materials:
  • the pigment fraction moves between 0.1 and 10 percent by weight and in particular between 0.5 and 5 percent by weight.
  • the pulverulent constituents of the formulation can first be stirred into the aqueous suspension and then the abovementioned
  • Agitator are homogeneously mixed together at room temperature.
  • the application of the release layer on the primer layer or on the not yet coated sections of the carrier layer is carried out using a laboratory ortechnikumstreichbalkens (wire bar).
  • Fig. 1 a self-adhesive tape in cross section.
  • FIG. 1 is the schematic representation of a self-adhesive tape 100 with a carrier layer 10 and an adhesive layer 1 1.
  • the carrier layer 10 preferably a stretched thermoplastic film, may optionally be provided with an additional release coating on its upper side.
  • a primer layer 12 is partially applied to the carrier layer 10, wherein the primer layer 12 preferably in the form of letters or symbols for reproducing information.
  • the primer layer 12 has a very good adhesion to the carrier layer 10.
  • a release layer 13 is applied, which covers both the primer layer 12 and the carrier layer 10 over the entire surface.
  • the release layer 13 is provided with laser-sensitive pigments, so that the self-adhesive tape can be provided without contact during manufacture with a laser, for example with lettering, logos, warnings or the like.
  • laser light of any wavelength can be used.
  • infrared-sensitive pigments it would also be possible for infrared-sensitive pigments to be used here.
  • Carrier layer 10 and separating layer 13 are matched to one another such that only a low adhesive force exists between them, whereas the primer layer 12 and the separating layer 13 in turn adhere well to one another.
  • an adhesive layer 1 1 is applied from an arbitrarily selected by the expert glue to stick the self-adhesive tape 100 on any substrates 14 such as paper, cardboard, packaging or the like.
  • the self-adhesive tape 100 splits in such a way that the carrier layer 10 separates from the separating layer 13 in the sections not provided with a primer layer 12, so that part of the self-adhesive tape 100 rests on the substrate 14 remains and accordingly, for example, the words "package open” is visible.
  • This lettering would also remain visible if the self-adhesive tape 100 were again glued exactly in the same position, since at least at the edges or transitions between primer layer 12 and release layer 13, the symbols or letters remain visible.
  • a coloring of the separating layer 13 can either take place in such a way that it is dyed in a single-color manner in the desired manner or likewise symbols, characters or the like can be recognized in the separating layer 13.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Adhesive Tapes (AREA)

Abstract

L'invention concerne un ruban autoadhésif (100) comprenant une couche de support (10), et une couche d'adhérence (11). Pour détecter l'ouverture non autorisée d'un emballage fermé à l'aide dudit ruban autoadhésif (100), une couche d'amorce (12) est partiellement appliquée sur la couche de support (10), et une couche de séparation (13) est disposée sur toute la surface, entre la couche d'adhérence (11) et la couche d'amorce (12) ou la couche de support (10).
EP06778286A 2005-09-09 2006-08-21 Ruban auto-adhesif Withdrawn EP1926791A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005043221A DE102005043221A1 (de) 2005-09-09 2005-09-09 Selbstklebeband
PCT/EP2006/065489 WO2007028700A1 (fr) 2005-09-09 2006-08-21 Ruban auto-adhesif

Publications (1)

Publication Number Publication Date
EP1926791A1 true EP1926791A1 (fr) 2008-06-04

Family

ID=37401529

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06778286A Withdrawn EP1926791A1 (fr) 2005-09-09 2006-08-21 Ruban auto-adhesif

Country Status (3)

Country Link
EP (1) EP1926791A1 (fr)
DE (1) DE102005043221A1 (fr)
WO (1) WO2007028700A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT10078U1 (de) * 2007-04-02 2008-08-15 Securikett Ulrich & Horn Gmbh Versiegelungsfolie
US20090061222A1 (en) * 2007-08-31 2009-03-05 Tesa Aktiengesellschaft Multi-layer adhesive closure
DE102008024023A1 (de) * 2008-05-16 2009-11-19 Tesa Scribos Gmbh Mehrschichtige Folienanordnung sowie Verwendung einer mehrschichtigen Folienanordnung
TWM389894U (en) * 2009-12-17 2010-10-01 Gs Tech Corp ID belt
DE102015015289A1 (de) * 2015-11-30 2017-06-01 Tesa Scribos Gmbh Sicherheitsklebeband

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4421865A1 (de) * 1994-06-22 1996-01-04 Beiersdorf Ag Einschichtlaseretikett
DE19746998B4 (de) * 1997-10-24 2008-06-05 Tesa Ag Laseretiketten und ihre Verwendung
US6537634B2 (en) * 1999-12-29 2003-03-25 Tesa Ag Adhesive security tape for detecting unauthorized broaching of a package
DE19963709A1 (de) * 1999-12-29 2002-12-05 Tesa Ag Sicherheitsklebeband zum Nachweis des unbefugten Öffnens einer Verpackung
DE10030556A1 (de) * 2000-06-21 2002-04-04 Tesa Ag Sicherheitsklebeband zum Nachweis des unbefugten Öffnens einer Verpackung
DE10030555A1 (de) * 2000-06-21 2002-03-14 Tesa Ag Sicherheitsklebeband zum Nachweis des unbefugten Öffnens einer Verpackung
DE10146270A1 (de) * 2001-09-19 2003-04-03 Tesa Ag Verwendung eines Sicherheitsklebebandes zum Anzeigen unautorisierter Öffnungsversuche an Versandpackungen
DE10209497A1 (de) * 2002-03-05 2003-09-25 Roehm Gmbh Problemlos thermisch umformbare Kunststofftafel mit Kennzeichnungen in der Schutzfolie
AU2002315675A1 (en) * 2002-05-08 2003-11-11 Leonhard Kurz Gmbh And Co. Kg Multilayer body with a laser-sensitive layer
DE10240491A1 (de) * 2002-09-03 2004-01-15 Refractory Intellectual Property Gmbh & Co.Kg Feuerfestes keramisches Tauchrohr
DE10245430A1 (de) * 2002-09-27 2004-04-08 Tesa Ag Originalitätssiegel
DE102004038774A1 (de) * 2004-08-09 2006-02-23 Tesa Ag Laserfilm aus einer zumindest einschichtigen Trägerschicht aus einer transparenten Folie, die einseitig mit einer Selbstklebemasse beschichtet ist
EP1666554B1 (fr) * 2004-12-04 2008-02-27 Tesa AG Bande de sécurité pour détecter l'ouverture non autorisée d'emballage

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007028700A1 *

Also Published As

Publication number Publication date
DE102005043221A1 (de) 2007-03-15
WO2007028700A1 (fr) 2007-03-15

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