EP1724739A1 - Labels protected against adhesive bleeding - Google Patents

Labels protected against adhesive bleeding Download PDF

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Publication number
EP1724739A1
EP1724739A1 EP05102270A EP05102270A EP1724739A1 EP 1724739 A1 EP1724739 A1 EP 1724739A1 EP 05102270 A EP05102270 A EP 05102270A EP 05102270 A EP05102270 A EP 05102270A EP 1724739 A1 EP1724739 A1 EP 1724739A1
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EP
European Patent Office
Prior art keywords
film
section
label
film section
layer
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.)
Granted
Application number
EP05102270A
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German (de)
French (fr)
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EP1724739B1 (en
Inventor
Dominik Werth
Michael Limmer
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
Original Assignee
Schreiner Group GmbH and Co KG
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 Schreiner Group GmbH and Co KG filed Critical Schreiner Group GmbH and Co KG
Priority to DE502005005536T priority Critical patent/DE502005005536D1/en
Priority to EP05102270A priority patent/EP1724739B1/en
Priority to AT05102270T priority patent/ATE409935T1/en
Priority to PCT/EP2006/060022 priority patent/WO2006100159A1/en
Priority to US11/886,813 priority patent/US20090053477A1/en
Publication of EP1724739A1 publication Critical patent/EP1724739A1/en
Application granted granted Critical
Publication of EP1724739B1 publication Critical patent/EP1724739B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • 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
    • 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.]
    • Y10T428/24752—Laterally noncoextensive components

Definitions

  • the present invention relates to a secured against bleeding of pressure-sensitive adhesive label and its preparation.
  • the pressure-sensitive adhesive of labels often tends to bleed. This refers to the emergence of adhesive beyond the label contour. Bleeding may occur, for example, during further processing, on the transport to the customer or during storage.
  • the emerging pressure-sensitive adhesive leads to the sticking of rolled label webs and can also have other negative effects, for example in the case of re-lettering or other further processing steps. Thus, by leaked adhesive printing systems (for the Nachbeschriftung of the label) can be contaminated.
  • Bleeding particularly occurs when high flow adhesives (such as certain specialty adhesives) are used and / or high adhesive coat weights are present. In order to ensure secure adhesion to substrates with difficult surface conditions, however, the use of appropriately flowable adhesives with correspondingly high application weights can often not be avoided.
  • high flow adhesives such as certain specialty adhesives
  • the usual measures against bleeding include, in particular, the cooling during transport, storage and / or further processing.
  • cooling systems generally require some technical effort and cause high operating costs due to their energy consumption.
  • the risk of re-shrinking, especially the lower film (but also the upper film) should be avoided.
  • a suitable method for producing such a label is to be provided.
  • a label which in each case has at least one upper film section, a lower film section connected to the upper film section and a pressure-sensitive adhesive layer which is attached to the side of the lower film section facing away from the upper film section.
  • at least the lower film section is not formed shrinking and kept slightly smaller in its surface area to all sides than the upper film section.
  • This supernatant is preferably not larger than 1.5 mm. For many purposes, a supernatant of about 0.2 to 0.5 mm is particularly preferred.
  • the upper film portion is preferably formed of a non-shrinking material, but at least inclined from a too low shrinkage, to avoid a subsequent reduction of the supernatant by shrinkage of the upper film portion.
  • Decisive for the protection of the label against adhesive bleeding is that the upper film section at least does not shrink significantly under storage and transport conditions, since thereby the negative effects of bleeding can be particularly critical. If the label is delivered in the bonded state of more extreme environmental influences, a slight shrinkage behavior of the top label can be tolerated to some extent, since leaking adhesive may then bring no effect-reducing effects of the effect.
  • the upper and lower film sections can advantageously be connected by coextrusion, but preferably the connection between the upper film section and lower film section is designed as an adhesive layer, which preferably has a surface-related coating weight of less than 30 grams per square meter, in order to avoid bleeding of this adhesive layer.
  • the adhesive layer between the top and bottom film sections preferably a relatively "hard", i. chosen to flow tending acrylate adhesive.
  • the use of a laminating lacquer is possible or otherwise compounds by means of chemical or physical influences, for example by chemical or conventional (caused by heat) welding.
  • the pressure-sensitive adhesive layer on the side of the lower film section facing away from the upper film is, in accordance with the usual purpose of attachment to "difficult", ie. particularly rough or otherwise adhesion-unfriendly surfaces, preferably thicker than 40 microns, in practice probably mostly between 45 and 150 microns thick. In special cases, thicknesses of the pressure-sensitive adhesive layer of more than 1 mm may also be advantageous. In order to achieve optimum adhesive properties, relatively soft pressure sensitive adhesives of modified acrylate or rubber material are preferably used.
  • the labels according to the invention can advantageously have a wide variety of equipment features which are known from the label application. These include imprints with text, image or code information, surfaces optimized for postmarking or special films, luminescent color layers, protective layers, stampings, tabs, detachable sections and security features of various types.
  • the label 101 shown in FIG. 1 consists of an upper film section 102 and a lower film section 103 coated on the underside with pressure-sensitive adhesive 105. Both film sections are connected to one another via a connecting layer 104.
  • the bonding layer may also be a pressure-sensitive adhesive, but also a laminating paint. Furthermore, it is possible that both film sections were produced from a coextruded film and thus the connection layer 104 is not necessary.
  • the lower film portion is formed from a non-shrinkable film. Specifically, this film shows no shrinkage up to a temperature range up to 50 degrees Celsius, preferably up to 100 degrees Celsius.
  • the lower film section is dimensioned somewhat smaller at all edges than the upper film section.
  • the inventive (analogously numbered) label 201 is shown in plan view. Visible is due to its larger dimensions, only the upper film portion 202; the lower film section 203 is therefore indicated only by dashed lines.
  • the label according to the invention has the same effect as one consisting of two film sections of equal size, in which the lower film section has been subsequently shrunk.
  • the adhesive 105 FIG. 1
  • the advantage is that the sub-sheet portion does not shrink even after being labeled under other environmental conditions such as exposure to heat.
  • FIG. 3 shows a preferred manufacturing method for the label described above: A composite 306 of carrier tape and self-adhesive provided first film web is punched at a first punch A in lower film sections 303. From a second roller 307, a further film web is fed and laminated to the lower film sections. A second punch B punches the top film section, which according to the invention is dimensioned larger on all sides than the outline of the bottom film section.
  • the label 301 is the product described above, which is rewound onto a roll. To simplify the illustration, the deduction of the grid after the two punching operations in the figure has been omitted.
  • FIG. A coextruded, preferably provided with adhesive layer composite film 408, consisting of at least two films is first stamped on a punch A so that only one film layer is punched through. Subsequently, a carrier tape 409 is supplied. Thereafter, the second film layer is punched at punch B, so that again - this time reversed in comparison to Fig. 3 - the labels of the invention are present and can be wound up on a roll.
  • the two film sections of the label by means of a dispensing method on the other section.
  • This method is particularly suitable when the top film section consists of several individual films or was otherwise pretreated, for example, was provided with complicated printing, while the bottom film section consists of a simple, untreated film. Since the protection from adhesive bleeding only works if both foil sections are in registration with each other after dispensing, it is of advantage to use control systems, preferably Electronic image surveillance systems to control the registration accuracy.
  • a transfer process for dispensing the upper film sections can be selected: both film sections are on carrier films, the upper film sections being transferred from their carrier to the lower film sections ,
  • the tie layer between the topsheet sections and their backing either remains on the backing in this process or is a dry remaining layer which forms the later top surface of the label.
  • this layer is therefore printable.
  • the transfer method offers the advantage compared to the conventional dispensing method that the registration accuracy of the two film sections is easier to accomplish once the processing machine has been set precisely.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Making Paper Articles (AREA)
  • Adhesive Tapes (AREA)
  • Laminated Bodies (AREA)
  • Dental Preparations (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

The label has an upper film section (102), a lower film section, linked with the upper film section, and an adhesive layer which is applied to the face of the lower film section facing away from the upper film section. The lower film section is produced from a non-shrink film and its dimensions on all edges of the label are smaller than that of the upper film section. An independent claim is included for a method for producing the label.

Description

Die vorliegende Erfindung betrifft ein gegen Ausbluten von Haftklebstoff gesichertes Etikett sowie dessen Herstellung.The present invention relates to a secured against bleeding of pressure-sensitive adhesive label and its preparation.

Der Haftklebstoff von Etiketten neigt häufig zum Ausbluten. Darunter versteht man das Austreten von Klebstoff über die Etikettenkontur hinaus. Ausbluten kann beispielsweise während der Weiterverarbeitung, auf dem Transport zum Kunden oder aber bei der Lagerung auftreten. Der austretende Haftklebstoff führt zum Verkleben gerollter Etikettenbahnen und kann sich auch anderweitig negativ auswirken, beispielsweise bei der Nachbeschriftung oder anderen Weiterverarbeitungsschritten. So können durch ausgetretenen Klebstoff Drucksysteme (für die Nachbeschriftung des Etiketts) verunreinigt werden.The pressure-sensitive adhesive of labels often tends to bleed. This refers to the emergence of adhesive beyond the label contour. Bleeding may occur, for example, during further processing, on the transport to the customer or during storage. The emerging pressure-sensitive adhesive leads to the sticking of rolled label webs and can also have other negative effects, for example in the case of re-lettering or other further processing steps. Thus, by leaked adhesive printing systems (for the Nachbeschriftung of the label) can be contaminated.

Ausbluten tritt insbesondere dann auf, wenn Klebstoffe mit hoher Fließfähigkeit (wie etwa bestimmte Sonderklebstoffe) verwendet werden und/oder hohe Klebstoff-Auftraggewichte vorliegen. Um sichere Haftung auf Unterlagen mit schwierigen Oberflächenverhältnissen zu gewährleisten, lässt sich jedoch oft der Einsatz entsprechend fließfähiger Klebstoffe mit entsprechend hohen Auftragsgewichten nicht vermeiden.Bleeding particularly occurs when high flow adhesives (such as certain specialty adhesives) are used and / or high adhesive coat weights are present. In order to ensure secure adhesion to substrates with difficult surface conditions, however, the use of appropriately flowable adhesives with correspondingly high application weights can often not be avoided.

Zu den üblichen Maßnahmen gegen Ausbluten gehört insbesondere die Kühlung bei Transport, Lagerung und/oder Weiterverarbeitung. Allerdings erfordern Kühlsysteme generell einigen technischen Aufwand und verursachen aufgrund Ihres Energieverbrauchs hohe Betriebskosten.The usual measures against bleeding include, in particular, the cooling during transport, storage and / or further processing. However, cooling systems generally require some technical effort and cause high operating costs due to their energy consumption.

Eine alternative Möglichkeit der Vermeidung des Klebstoffblutens besteht in einer speziellen Gestaltung der Etiketten selbst. Eine derartige Lösung ist in der Offenlegungsschrift DE 10235218 A1 ausgeführt. Hier wird ein mehrlagiges Etikett mit einer schrumpfbaren Unterfolie bereitgestellt. Durch die Schrumpfung der Unterfolie entsteht am Rand ein klebstofffreier Bereich. Derartige Etiketten haben sich in der Anwendung als sehr wirksam erwiesen, sie können jedoch nicht in allen Fällen zur Anwendung kommen. Insbesondere bei Anwendungen in Bereichen, die erhöhten Temperaturen ausgesetzt sind, besteht die Gefahr des "Nachschrumpfens" der Unterfolie, so dass der klebstofffreie Rand undefiniert größer wird als ursprünglich vorgesehen.An alternative way of avoiding the bleeding of the adhesive consists in a special design of the labels themselves. Such a solution is disclosed in the published patent application DE 10235218 A1 executed. Here, a multi-layer label is provided with a shrinkable lower film. The shrinkage of the lower film creates an adhesive-free area on the edge. Such labels have proven to be very effective in the application, but they can not be used in all cases. Especially in applications in areas exposed to elevated temperatures, there is a risk of "re-shrinking" of the lower film, so that the adhesive-free edge becomes undefined larger than originally intended.

Es ist daher Aufgabe der vorliegenden Erfindung, ein gegen Ausbluten von Haftklebstoff gesichertes Etikett zu schaffen. Dabei soll die Gefahr des Nachschrumpfens, speziell der Unterfolie (aber auch der Oberfolie) vermieden werden. Weiterhin soll ein geeignetes Verfahren zur Herstellung eines derartigen Etiketts bereitgestellt werden.It is therefore an object of the present invention to provide a secured against bleeding of pressure-sensitive adhesive label. The risk of re-shrinking, especially the lower film (but also the upper film) should be avoided. Furthermore, a suitable method for producing such a label is to be provided.

Diese Aufgabe wird durch ein Etikett gelöst, welche jeweils mindestens einen Oberfolienabschnitt, einen mit dem Oberfolienabschnitt verbundenen Unterfolienabschnitt und eine Haftklebstoffschicht aufweist, welche an der vom Oberfolienabschnitt abgewandten Seite des Unterfolienabschnitts angebracht ist. Bei diesem Etikett ist mindestens der Unterfolienabschnitt nicht schrumpfend ausgebildet und in seiner Flächenausdehnung zu allen Seiten geringfügig kleiner gehalten als der Oberfolienabschnitt. Hierdurch entsteht, zu allen Kanten hin ein Bereich, in dem kein oder nur geringfügig Klebstoff vorhanden ist, da der Oberfolienabschnitt den Unterfolienabschnitt umlaufend überragt. Dieser Überstand ist vorzugsweise nicht größer als 1,5 mm. Besonders bevorzugt ist für viele Einsatzzwecke ein Überstand von etwa 0,2 bis 0,5 mm. Auch der Oberfolienabschnitt ist vorzugsweise aus einem nicht schrumpfenden Material ausgebildet, mindestens aber aus einem nur zu geringer Schrumpfung neigenden, um eine spätere Reduzierung des Überstandes durch Schrumpfung des Oberfolienabschnitts zu vermeiden. Entscheidend für die Absicherung des Etiketts gegen Klebstoffausbluten ist, dass der Oberfolienabschnitt zumindest nicht unter Lager- und Transportbedingungen wesentlich schrumpft, da dadurch die negativen Effekte des Ausblutens besonders kritisch werden können. Ist das Etikett im verklebten Zustand extremeren Umwelteinflüssen ausgeliefert, kann ein geringes Schrumpfverhalten des Oberetiketts bis zu einem gewissen Grad toleriert werden, da austretender Klebstoff dann eventuell keine funktionsmindern-den Effekte des Effekts mit sich bringt.This object is achieved by a label, which in each case has at least one upper film section, a lower film section connected to the upper film section and a pressure-sensitive adhesive layer which is attached to the side of the lower film section facing away from the upper film section. In this label, at least the lower film section is not formed shrinking and kept slightly smaller in its surface area to all sides than the upper film section. As a result, an area in which there is no adhesive or only a small amount of adhesive is produced, since all edges of the upper film section project beyond the lower film section. This supernatant is preferably not larger than 1.5 mm. For many purposes, a supernatant of about 0.2 to 0.5 mm is particularly preferred. Also, the upper film portion is preferably formed of a non-shrinking material, but at least inclined from a too low shrinkage, to avoid a subsequent reduction of the supernatant by shrinkage of the upper film portion. Decisive for the protection of the label against adhesive bleeding is that the upper film section at least does not shrink significantly under storage and transport conditions, since thereby the negative effects of bleeding can be particularly critical. If the label is delivered in the bonded state of more extreme environmental influences, a slight shrinkage behavior of the top label can be tolerated to some extent, since leaking adhesive may then bring no effect-reducing effects of the effect.

Neben anderen Möglichkeiten können Ober- und Unterfolienabschnitt vorteilhaft durch Koextrusion verbunden sein, vorzugsweise ist die Verbindung zwischen Oberfolienabschnitt und Unterfolienabschnitt jedoch als Klebstoffschicht ausgeführt, welche vorzugsweise eine flächenbezogene Auftragsmasse von unter 30 Gramm pro Quadratmeter aufweist, um auch Ausbluten dieser Klebstoffschicht zu vermeiden. Aus dem selben Grund wird für die Klebstoffschicht zwischen Ober- und Unterfolienabschnitt vorzugsweise ein relativ "harter", d.h. wenig zum Fließen neigender Acrylatkleber gewählt. Alternativ zu derartigen Klebstoffen ist die Verwendung eines Kaschierlacks möglich oder anderweitige Verbindungen mit Hilfe chemischer oder physikalischer Einflüsse, beispielsweise durch chemische oder herkömmliche (durch Wärmeeinwirkung hervorgerufene) Verschweißung.Among other possibilities, the upper and lower film sections can advantageously be connected by coextrusion, but preferably the connection between the upper film section and lower film section is designed as an adhesive layer, which preferably has a surface-related coating weight of less than 30 grams per square meter, in order to avoid bleeding of this adhesive layer. For the same reason, for the adhesive layer between the top and bottom film sections, preferably a relatively "hard", i. chosen to flow tending acrylate adhesive. As an alternative to such adhesives, the use of a laminating lacquer is possible or otherwise compounds by means of chemical or physical influences, for example by chemical or conventional (caused by heat) welding.

Die Haftklebstoffschicht auf der der Oberfolie abgewandten Seite des Unterfolienabschnitts ist dagegen, entsprechend dem üblichen Einsatzzweck einer Anbringung auf "schwierigen", d.h. besonders rauhen oder anderweitig haftungsunfreundlichen Oberflächen, vorzugsweise dicker als 40 µm, in der Praxis wohl meist zwischen 45 und 150 µm dick. In besonderen Fällen können auch Dicken der Haftklebstoffschicht von über 1 mm vorteilhaft sein. Um optimale Hafteigenschaften zu erreichen, werden vorzugsweise relativ weiche Haftklebstoffe aus modifiziertem Acrylat oder Kautschukmaterial verwendet.The pressure-sensitive adhesive layer on the side of the lower film section facing away from the upper film, on the other hand, is, in accordance with the usual purpose of attachment to "difficult", ie. particularly rough or otherwise adhesion-unfriendly surfaces, preferably thicker than 40 microns, in practice probably mostly between 45 and 150 microns thick. In special cases, thicknesses of the pressure-sensitive adhesive layer of more than 1 mm may also be advantageous. In order to achieve optimum adhesive properties, relatively soft pressure sensitive adhesives of modified acrylate or rubber material are preferably used.

Je nach Einsatzzweck können die erfindungsgemäßen Etiketten vorteilhafterweise unterschiedlichste Ausstattungsmerkmale aufweisen, welche aus der Etiketten-Anwendung bekannt sind. Dazu gehören Aufdrucke mit Text-, Bild- oder Code-Information, für die Nachbeschriftung optimierte Oberflächen oder Spezialfilme, Lumineszenzfarbschichten, Schutzschichten, Anstanzungen, Laschen, ablösbare Abschnitte und Sicherheitsmerkmale unterschiedlichster Ausprägung.Depending on the intended use, the labels according to the invention can advantageously have a wide variety of equipment features which are known from the label application. These include imprints with text, image or code information, surfaces optimized for postmarking or special films, luminescent color layers, protective layers, stampings, tabs, detachable sections and security features of various types.

Nachfolgend wird das erfindungsgemäße Etikett und entsprechende zu seiner Herstellung vorgesehene Verfahren unter Bezugnahme auf die zugehörigen Zeichnungen beschrieben. Die Darstellungen sind rein schematisch und nicht maßstabsgetreu; insbesondere sind Schichtdicken aus Anschaulichkeitsgründen stark vergrößert abgebildet.The label according to the invention and corresponding method provided for its production will be described below with reference to the accompanying drawings. The illustrations are purely schematic and not to scale; In particular, layer thicknesses are shown greatly enlarged for reasons of clarity.

Es zeigen

  • Fig. 1 ein erfindungsgemäßes Etikett in seitlicher, geschnittener Ansicht,
  • Fig. 2 das Etikett in Draufsicht,
  • Fig. 3 ein bevorzugtes erfindungsgemäßes Herstellungsverfahren für das Etikett und
  • Fig. 4 ein weiteres erfindungsgemäßes Herstellungsverfahren.
Show it
  • 1 shows a label according to the invention in a side, sectional view,
  • 2 shows the label in plan view,
  • Fig. 3 shows a preferred inventive manufacturing method for the label and
  • 4 shows a further production method according to the invention.

Das in Fig. 1 dargestellte Etikett 101 besteht aus einem Oberfolienabschnitt 102 und einem unterseitig mit Haftklebstoff 105 beschichteten Unterfolienabschnitt 103. Beide Folienabschnitte sind über eine Verbindungsschicht 104 miteinander verbunden. Die Verbindungsschicht kann ebenfalls ein Haftkleber sein, jedoch auch ein Kaschierlack. Weiterhin ist es möglich, dass beide Folienabschnitte aus einer koextrudierten Folie hergestellt wurden und somit die Verbindungsschicht 104 nicht notwendig ist. Der Unterfolienabschnitt wird aus einer nicht zu Schrumpfung neigenden Folie gebildet. Speziell zeigt diese Folie keine Schrumpfung bis zu einem Temperaturbereich bis 50 Grad Celsius, vorzugsweise bis 100 Grad Celsius. Der Unterfolienabschnitt ist an allen Rändern etwas kleiner dimensioniert als der Oberfolienabschnitt.The label 101 shown in FIG. 1 consists of an upper film section 102 and a lower film section 103 coated on the underside with pressure-sensitive adhesive 105. Both film sections are connected to one another via a connecting layer 104. The bonding layer may also be a pressure-sensitive adhesive, but also a laminating paint. Furthermore, it is possible that both film sections were produced from a coextruded film and thus the connection layer 104 is not necessary. The lower film portion is formed from a non-shrinkable film. Specifically, this film shows no shrinkage up to a temperature range up to 50 degrees Celsius, preferably up to 100 degrees Celsius. The lower film section is dimensioned somewhat smaller at all edges than the upper film section.

In Fig. 2 wird das erfindungsgemäße (analog nummerierte) Etikett 201 in Draufsicht dargestellt. Sichtbar ist aufgrund seiner größeren Dimensionierung nur der Oberfolienabschnitt 202; der Unterfolienabschnitt 203 ist daher nur strichliert angedeutet.In Fig. 2, the inventive (analogously numbered) label 201 is shown in plan view. Visible is due to its larger dimensions, only the upper film portion 202; the lower film section 203 is therefore indicated only by dashed lines.

Aufgrund der größeren Dimensionierung des Oberfolienabschnitts 202 zeigt das erfindungsgemäße Etikett den selben Effekt wie ein solches, das aus zwei gleich großen Folienabschnitten besteht, bei dem der untere Folienabschnitt nachträglich geschrumpft wurde: Für den Klebstoff 105 (Figur 1) besteht ein durch den überlappenden Bereich des Oberfolienabschnitts ein gewisser Raum zur Ausbreitung, ohne dass es zu einem Ausbluten über den Etikettenrand hinaus kommt. Im Vergleich zu einem "vorgeschrumpften" Etikett nach Stand der Technik besteht der Vorteil jedoch darin, dass der Unterfolienabschnitt auch nach der Etikettierung unter anderen Umwelteinflüssen, beispielsweise Hitzeeinwirkung, nicht schrumpft.Due to the larger dimensions of the upper film section 202, the label according to the invention has the same effect as one consisting of two film sections of equal size, in which the lower film section has been subsequently shrunk. For the adhesive 105 (FIG. 1), there is an overlapping region of the film Oberfolienabschnitts a certain space for spreading, without causing it to bleed over the Label edge comes out. However, compared to a prior art "pre-shrunk" label, the advantage is that the sub-sheet portion does not shrink even after being labeled under other environmental conditions such as exposure to heat.

Fig. 3 zeigt ein bevorzugtes Herstellungsverfahren für das oben beschriebene Etikett: Ein Verbund 306 aus Trägerband und selbstklebend ausgestatteter erster Folienbahn wird an einer ersten Stanze A in Unterfolienabschnitte 303 gestanzt. Von einer zweiten Rolle 307 wird eine weitere Folienbahn zugeführt und auf die Unterfolienabschnitte kaschiert. Eine zweite Stanze B stanzt den Oberfolienabschnitt aus, der erfindungsgemäß zu allen Seiten hin größer dimensioniert ist als der Umriß des Unterfolienabschnitts. Das Etikett 301 ist das oben beschriebene Produkt, welches wieder auf Rolle aufgewickelt wird. Zur Vereinfachung der Darstellung wurde der Abzug der Gitter nach den beiden Stanzvorgängen in der Figur weggelassen.FIG. 3 shows a preferred manufacturing method for the label described above: A composite 306 of carrier tape and self-adhesive provided first film web is punched at a first punch A in lower film sections 303. From a second roller 307, a further film web is fed and laminated to the lower film sections. A second punch B punches the top film section, which according to the invention is dimensioned larger on all sides than the outline of the bottom film section. The label 301 is the product described above, which is rewound onto a roll. To simplify the illustration, the deduction of the grid after the two punching operations in the figure has been omitted.

Eine alternative Herstellungsmöglichkeit des Etiketts wird in Fig. 4 gezeigt. Ein koextrudierter, vorzugsweise mit Klebstoffschicht ausgestatteter Folienverbund 408, bestehend aus mindestens zwei Folien wird zunächst an einer Stanze A so gestanzt, dass nur die eine Folienlage durchgestanzt ist. Anschließend wird ein Trägerband 409 zugeführt. Danach wird an Stanze B die zweite Folienlage gestanzt, so dass wiederum - dieses Mal seitenverkehrt im Vergleich zu Fig. 3 - die erfindungsgemäßen Etiketten vorliegen und auf Rolle aufgewickelt werden können.An alternative manufacturing possibility of the label is shown in FIG. A coextruded, preferably provided with adhesive layer composite film 408, consisting of at least two films is first stamped on a punch A so that only one film layer is punched through. Subsequently, a carrier tape 409 is supplied. Thereafter, the second film layer is punched at punch B, so that again - this time reversed in comparison to Fig. 3 - the labels of the invention are present and can be wound up on a roll.

Weiterhin ist es auch möglich, eine der beiden Folienabschnitte des Etiketts mit Hilfe eines Spendeverfahrens auf den anderen Abschnitt aufzubringen. Dieses Verfahren eignet sich besonders dann, wenn der Oberfolienabschnitt aus mehreren einzelnen Folien besteht oder anderweitig vorbehandelt wurde, beispielsweise mit komplizierten Bedruckungen versehen wurde, während der Unterfolienabschnitt aus einer einfachen, unbehandelten Folie besteht. Da der Schutz vor Klebstoffausbluten nur dann funktioniert, wenn beide Folienabschnitte nach dem Spenden passergenau aufeinander liegen, ist es von Nutzen, mit Hilfe von Kontrollsystemen, vorzugsweise elektronischen Bildüberwachungssystemen die Passergenauigkeit zu kontrollieren.Furthermore, it is also possible to apply one of the two film sections of the label by means of a dispensing method on the other section. This method is particularly suitable when the top film section consists of several individual films or was otherwise pretreated, for example, was provided with complicated printing, while the bottom film section consists of a simple, untreated film. Since the protection from adhesive bleeding only works if both foil sections are in registration with each other after dispensing, it is of advantage to use control systems, preferably Electronic image surveillance systems to control the registration accuracy.

Es versteht sich von selbst, dass derartige Kontrollsysteme auch bei der Steuerung der weiter oben beschriebenen Verfahren sinnvoll zur Anwendung kommen können.It goes without saying that such control systems can also be usefully used in the control of the methods described above.

Statt des herkömmlichen Spendeverfahrens, bei dem die Oberfolienabschnitte über eine Spendekante wie bei Etikettierverfahren auf den Unterfolienabschnitt gespendet werden kann auch ein Transferverfahren zum Spenden der Oberfolienabschnitte gewählt werden: Dabei liegen beide Folienabschnitte auf Trägerfolien vor, wobei die Oberfolienabschnitte von ihrem Träger auf die Unterfolienabschnitte transferiert werden. Die Verbindungsschicht zwischen den Oberfolienabschnitten und ihrem Träger verbleibt bei diesem Verfahren entweder auf dem Träger oder ist eine trocken zurückbleibende Schicht, die die spätere Oberseite des Etiketts bildet. Vorzugsweise ist diese Schicht daher bedruckbar. Das Transferverfahren bietet im Vergleich zum herkömmlichen Spendeverfahren den Vorteil, dass die Passergenauigkeit der beiden Folienabschnitte einfacher zu bewerkstelligen ist, wenn die Verarbeitungsmaschine einmal genau eingestellt wurde.Instead of the conventional dispensing method, in which the upper film sections are dispensed onto the lower film section via a dispensing edge as in labeling processes, a transfer process for dispensing the upper film sections can be selected: both film sections are on carrier films, the upper film sections being transferred from their carrier to the lower film sections , The tie layer between the topsheet sections and their backing either remains on the backing in this process or is a dry remaining layer which forms the later top surface of the label. Preferably, this layer is therefore printable. The transfer method offers the advantage compared to the conventional dispensing method that the registration accuracy of the two film sections is easier to accomplish once the processing machine has been set precisely.

Claims (24)

Etikett mit reduziertem Risiko zum Klebstoffbluten, aufweisend einen Oberfolienabschnitt, einen mit dem Oberfolienabschnitt verbundenen Unterfolienabschnitt und eine Haftklebstoffschicht, welche an der vom Oberfolienabschnitt abgewandten Seite des Unterfolienabschnitts angebracht ist,
dadurch gekennzeichnet,
dass der Unterfolienabschnitt aus einer nicht schrumpfenden Folie besteht und seine Ausdehnung an allen Etikettenrändern geringer ist als die des Oberfolienabschnitts.Label having reduced risk of bleeding adhesive, comprising a top film portion, a bottom film portion connected to the top film portion, and a pressure-sensitive adhesive layer attached to the side of the bottom film portion facing away from the top film portion,
characterized,
that the lower film section consists of a non-shrinking film and its extension at all label edges is less than that of the upper film section. Etikett gemäß Anspruch 1, dadurch gekennzeichnet, dass der Unterfo-lienabschnitt aus einer thermisch nicht schrumpfbaren Folie besteht.Label according to claim 1, characterized in that the Unterfo-lienabschnitt consists of a thermally non-shrinkable film. Etikett gemäß einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass der Oberfolienabschnitt aus einer nicht oder nur gering schrumpfbaren Folie besteht.Label according to one of the preceding claims, characterized in that the upper film section consists of a non-shrinkable or only slightly shrinkable film. Etikett gemäß Anspruch 3, dadurch gekennzeichnet, dass der Oberfolienabschnitt aus einer bei Temperaturen bis 50 Grad Celsius nicht oder nur gering schrumpfbaren Folie besteht.Label according to claim 3, characterized in that the upper film section consists of a at temperatures up to 50 degrees Celsius or only slightly shrinkable film. Etikett gemäß einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass der Oberfolienabschnitt aus einer nicht schrumpfbaren Folie besteht.Label according to one of the preceding claims, characterized in that the upper film section consists of a non-shrinkable film. Etikett gemäß einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass der Oberfolienabschnitt den Unterfolienabschnitt nicht weiter als 1,5 mm überragt.Label according to one of the preceding claims, characterized in that the upper film section does not project beyond the lower film section by more than 1.5 mm. Etikett gemäß Anspruch 6, dadurch gekennzeichnet, dass der Oberfolienabschnitt den Unterfolienabschnitt umlaufend um 0,2 bis 0,5 mm überragt.Label according to claim 6, characterized in that the upper film section overhangs the lower film section circumferentially by 0.2 to 0.5 mm. Etikett gemäß einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Verbindung zwischen Oberfolienabschnitt und Unterfolienabschnitt als Klebstoffschicht ausgeführt ist.Label according to one of the preceding claims, characterized that the connection between upper film section and lower film section is implemented as an adhesive layer. Etikett gemäß Anspruch 8, dadurch gekennzeichnet, dass die Klebstoffschicht zwischen Oberfolienabschnitt und Unterfolienabschnitt eine flächenbezogene Auftragsmasse unter 30 Gramm pro Quadratmeter aufweist.Label according to Claim 8, characterized in that the adhesive layer between the upper film section and the lower film section has a surface-related coating weight of less than 30 grams per square meter. Etikett gemäß einem der Ansprüche 8-9, dadurch gekennzeichnet, dass die Klebstoffschicht zwischen Oberfolienabschnitt und Unterfolienabschnitt aus einem Acrylatsystem besteht.Label according to one of claims 8-9, characterized in that the adhesive layer between upper film section and lower film section consists of an acrylate system. Etikett gemäß einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Verbindung zwischen Oberfolienabschnitt und Unterfolienabschnitt als Lackschicht ausgeführt ist.Label according to one of the preceding claims, characterized in that the connection between the upper foil section and the lower foil section is designed as a lacquer layer. Etikett gemäß einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Haftklebstoffschicht dicker als 40 µm ist.Label according to one of the preceding claims, characterized in that the pressure-sensitive adhesive layer is thicker than 40 μm. Etikett gemäß einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Haftklebstoffschicht aus einem modifizierten Acrylat oder Kautschukmaterial besteht.Label according to one of the preceding claims, characterized in that the pressure-sensitive adhesive layer consists of a modified acrylate or rubber material. Etikett gemäß einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass es ablösbar haftend auf einer Bahn liegt.Label according to one of the preceding claims, characterized in that it removably adheres to a web. Verfahren zur Herstellung von gegen Ausbluten von Haftklebstoff gesicherten Etiketten, welches folgende Schritte in beliebiger Reihenfolge aufweist: (a) Bereitstellen eines nicht schrumpfend ausgebildeten selbstklebenden Unterfolienabschnitts, (b) Bereitstellen eines an allen Rändern größer dimensionierten Oberfolien-abschnitts, (c) Zusammenführen der beiden Folienabschnitte zu einem selbstklebenden Verbund. Process for the preparation of labels secured against bleeding of pressure-sensitive adhesive, which comprises the following steps in any order: (a) providing a non-shrinking self-adhesive lower film section, (b) providing a top film section which is dimensioned larger at all edges, (c) merging the two film sections into a self-adhesive composite. Verfahren gemäß Anspruch 15, dadurch gekennzeichnet, dass der Oberfolienabschnitt auf den Unterfolienabschnitt verspendet wird.A method according to claim 15, characterized in that the upper film portion is dispensed onto the lower film portion. Verfahren gemäß Anspruch 16, dadurch gekennzeichnet, dass der Oberfolienabschnitt mit Hilfe von mindestens einem Kontrollsystem passergenau auf den Unterfolienabschnitt verspendet wird.A method according to claim 16, characterized in that the upper film portion is dispensed with the aid of at least one control system registration on the lower film portion. Verfahren gemäß Anspruch 17, dadurch gekennzeichnet, dass der Oberfolienabschnitt von einem Träger auf den Unterfolienabschnitt transferiert wird.A method according to claim 17, characterized in that the top film portion is transferred from a carrier to the bottom film portion. Verfahren gemäß Anspruch 17, dadurch gekennzeichnet, dass es sich bei dem mindestens einen Kontrollsystem um eine elektronische Bildüberwachung handelt.A method according to claim 17, characterized in that it is the at least one control system to an electronic image monitoring. Verfahren gemäß Anspruch 15, dadurch gekennzeichnet, dass die beiden Folienabschnitte mit Hilfe von mindestens einer Stanzform pro Folienabschnitt konfektioniert werden.A method according to claim 15, characterized in that the two film sections are assembled by means of at least one punching die per film section. Verfahren gemäß Anspruch 20, dadurch gekennzeichnet, dass die beiden Folienabschnitte nacheinander gestanzt werden.A method according to claim 20, characterized in that the two film sections are punched one after the other. Verfahren gemäß einem der Ansprüche 20 und 21, gekennzeichnet durch folgenden Ablauf: (a) Bereitstellen einer koextrudierten, mindestens zweilagigen Folienbahn, (b) Stanzen einer ersten Folienlage, (c) Stanzen der zweiten Folienlage, wobei die Stanzform der zweiten Folienlage so gestaltet und ausgerichtet ist, dass die zweite Folienlage die erste Folienlage an allen Rändern überragt.Method according to one of Claims 20 and 21, characterized by the following sequence: (a) providing a coextruded, at least two-ply film web, (b) punching a first film layer, (c) punching the second film layer, wherein the punching mold of the second film layer is designed and oriented so that the second film layer projects beyond the first film layer on all edges. Verfahren gemäß Anspruch 22, dadurch gekennzeichnet, dass nach dem Stanzen der ersten Folienlage im auf der restlichen Folienbahn verbleibenden Bereich der ersten Folienlage Klebstoff aufgebracht wird und eine Trägerfolie auf der klebstoffbeschichteten Seite aufgebracht wird.A method according to claim 22, characterized in that after punching the first film layer in the remaining on the remaining film web remaining portion of the first film layer adhesive is applied and a carrier film is applied to the adhesive-coated side. Verfahren gemäß Anspruch 20, dadurch gekennzeichnet, dass eine erste Folienbahn auf einer Trägerfolie bereitgestellt und gestanzt wird und eine zweite Folienbahn mit den entstandenen Folienabschnitten zusammengeführt und wiederum gestanzt wird.A method according to claim 20, characterized in that a first film web is provided on a carrier film and punched and a second film web is merged with the resulting film sections and again punched.
EP05102270A 2005-03-22 2005-03-22 Labels protected against adhesive bleeding Not-in-force EP1724739B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE502005005536T DE502005005536D1 (en) 2005-03-22 2005-03-22 Label secured against adhesive bleeding
EP05102270A EP1724739B1 (en) 2005-03-22 2005-03-22 Labels protected against adhesive bleeding
AT05102270T ATE409935T1 (en) 2005-03-22 2005-03-22 LABEL PROTECTED AGAINST ADHESIVE BLEEDING
PCT/EP2006/060022 WO2006100159A1 (en) 2005-03-22 2006-02-16 Label that is protected from adhesive bleeding
US11/886,813 US20090053477A1 (en) 2005-03-22 2006-02-16 Label That Is Protected From Adhesive Bleeding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05102270A EP1724739B1 (en) 2005-03-22 2005-03-22 Labels protected against adhesive bleeding

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EP1724739A1 true EP1724739A1 (en) 2006-11-22
EP1724739B1 EP1724739B1 (en) 2008-10-01

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US (1) US20090053477A1 (en)
EP (1) EP1724739B1 (en)
AT (1) ATE409935T1 (en)
DE (1) DE502005005536D1 (en)
WO (1) WO2006100159A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6705105B2 (en) 2016-03-31 2020-06-03 リンテック株式会社 Adhesive sheet for tire
JP6809688B2 (en) 2016-03-31 2021-01-06 リンテック株式会社 Adhesive sheet for tires and its manufacturing method
DE102021124494A1 (en) * 2021-08-04 2023-02-09 Schreiner Group Gmbh & Co. Kg Label web and method for producing a label web

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0951004A2 (en) * 1998-04-15 1999-10-20 Steibeis PPL GmbH Easily removable label for reusable container
WO2000031199A1 (en) * 1998-11-23 2000-06-02 Francois Jean Marc A pressure-sensitive adhesive laminate, a method and a device for modifying an initial release force in such a laminate
WO2004013831A1 (en) * 2002-08-01 2004-02-12 Schreiner Group Gmbh & Co. Kg Labels protected against adhesive bleeding

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Publication number Priority date Publication date Assignee Title
US4648931A (en) * 1983-12-15 1987-03-10 Johnston Orin B Method of forming bead seal in biaxially oriented polymer film by heat bonding
US6733879B2 (en) * 2001-12-17 2004-05-11 Data2 Incorporated Adhesive-backed label and process for producing the same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0951004A2 (en) * 1998-04-15 1999-10-20 Steibeis PPL GmbH Easily removable label for reusable container
WO2000031199A1 (en) * 1998-11-23 2000-06-02 Francois Jean Marc A pressure-sensitive adhesive laminate, a method and a device for modifying an initial release force in such a laminate
WO2004013831A1 (en) * 2002-08-01 2004-02-12 Schreiner Group Gmbh & Co. Kg Labels protected against adhesive bleeding

Also Published As

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WO2006100159A1 (en) 2006-09-28
EP1724739B1 (en) 2008-10-01
DE502005005536D1 (en) 2008-11-13
ATE409935T1 (en) 2008-10-15
US20090053477A1 (en) 2009-02-26

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