EP3654317B1 - Data carrier material with improved tear resistance - Google Patents

Data carrier material with improved tear resistance Download PDF

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Publication number
EP3654317B1
EP3654317B1 EP18000905.2A EP18000905A EP3654317B1 EP 3654317 B1 EP3654317 B1 EP 3654317B1 EP 18000905 A EP18000905 A EP 18000905A EP 3654317 B1 EP3654317 B1 EP 3654317B1
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EP
European Patent Office
Prior art keywords
layer
data carrier
carrier material
material according
lacquer
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EP18000905.2A
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German (de)
French (fr)
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EP3654317A1 (en
Inventor
Marc Brandenburg
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Aluminium Feron GmbH and Co KG
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Aluminium Feron GmbH and Co KG
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Priority to EP18000905.2A priority Critical patent/EP3654317B1/en
Priority to PCT/DE2019/000051 priority patent/WO2020098848A1/en
Publication of EP3654317A1 publication Critical patent/EP3654317A1/en
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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
    • G09F3/08—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
    • G09F2003/023—Adhesive
    • G09F2003/0232—Resistance to heat
    • 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
    • G09F2003/023—Adhesive
    • G09F2003/0238—Stress resistant

Definitions

  • the present invention relates to a data carrier material containing an aluminum foil and a printable lacquer layer arranged thereon with the features of the preamble of patent claim 1.
  • Such a data carrier material is from EP 0 902 408 A2 known.
  • the known data carrier material has a metal foil and a printable silicone resin layer arranged thereon. It is characterized by a relatively high heat resistance or temperature resistance. Areas of application for such data carrier materials are those at which relatively high temperatures occur, such as in metal processing, where corresponding metal foil strips are provided with data carriers and are subjected to a subsequent annealing process for the purpose of evaporation of the rolling oil residues or to achieve certain crystal structures.
  • the data carriers attached to the metal foil strips run through here as hang tags or as stuck-on labels with the corresponding Process.
  • the coding applied to the data carriers by printing runs through the corresponding temperature process up to 450 ° C (e.g. radiation heat) and can then be automatically read and assigned using the known detection methods, e.g. scanning. As a result, the applied data is saved even after the application of high temperatures and can be digitally processed with the known recognition methods.
  • a data carrier material with the features of the preamble of claim 1 is known.
  • a foil made of soft-annealed aluminum is used in order to enable an embossing into the aluminum foil during inscription and thus to achieve a particularly long legibility of the inscription.
  • the WO 93/07844 A1 describes high-temperature-resistant labels that have a glass fiber layer but no aluminum layer.
  • a tape which is used for the manufacture of plasma and thermal spray processes.
  • the band can optionally have a metal layer, for example an aluminum layer. Nothing is said about the properties of the aluminum layer.
  • the present invention is based on the object of creating a data carrier material of the type described at the outset which, while having good heat resistance, is characterized by a particularly high tear resistance.
  • an aluminum-glass fiber composite material is thus made available as a data carrier material.
  • the reinforcement of the aluminum foil with the glass fiber layer provided here results in a significant improvement in the tear resistance of the data carrier material.
  • the data carrier material designed according to the invention is designed as follows:
  • the carrier material for the printable lacquer layer is a composite material made of an aluminum foil and a glass fiber layer, which are connected to one another via a suitable heat-resistant adhesive layer.
  • a foil made of unannealed aluminum is used as the aluminum foil, as this results in handling advantages over a foil made of soft-annealed aluminum.
  • Aluminum has the advantage that it is a cheap, easy to process and generally available material.
  • the aluminum foil used preferably has a thickness of 6-200 ⁇ m.
  • Different glass fibers can be used for the glass fiber layer depending on the application.
  • a glass fiber layer made of a glass fiber fabric or a glass fiber fleece can be used, in which case tightly and finely woven, coarse, thick and thin structures can be used that are impregnated or not impregnated or impregnated or not are.
  • Conventional known materials can be used as substances for impregnation or impregnation, which can be used, for example, to improve the tear resistance of the data carrier material.
  • the thickness of the glass fiber layer also depends on the respective application. Thicknesses of 10 to 500 ⁇ m are preferably used here.
  • the glass fiber layer can have any desired structures if it achieves a particularly high tear resistance with good heat resistance.
  • the glass fiber layer can also comprise close-meshed or wide-meshed glass fiber networks. It is essential that such glass fiber structures, in addition to the heat resistance and tear resistance mentioned, have good adhesion to the aluminum layer, which can be achieved via the adhesive layer provided.
  • the reinforcement of the aluminum foil by the provided glass fiber layer achieves a particularly good tear resistance of the data carrier composite material.
  • this material has a heat resistance or temperature stability of up to 450 ° C.
  • the connection between aluminum foil and fiberglass material is crucial, and this connection must withstand the corresponding high temperatures.
  • a highly heat-resistant adhesive is used according to the invention. Polysiloxane systems have proven to be particularly preferred here. It has shown that particularly good results can be achieved with an adhesive layer in a thickness range of 1 - 50 ⁇ m.
  • the glass fiber layer is composed of several individual layers which are connected with an adhesive.
  • the adhesive of the polysiloxane type mentioned in the preceding paragraph can for example be used as the adhesive.
  • the glass fiber layer can be designed as a glass fiber fabric into which metal threads are woven.
  • a glass fiber-metal composite layer of this type has good results with regard to high tear resistance.
  • Lacquer layers which are suitable for a wide variety of printing processes can be used as the printable lacquer layer. Lacquer layers that are suitable for a thermal transfer printing process are particularly suitable here.
  • a preferred lacquer layer is one based on silicone resin, as is also the case, for example, in the one mentioned at the beginning EP 0 902 408 A2 is described.
  • a suitable resin in particular silicone resin
  • silicone resin is applied as a lacquer to the aluminum foil or to the aluminum-glass fiber composite foil, in particular dissolved in organic solvents.
  • solvents are known.
  • paint auxiliaries such as defoamers, leveling agents etc., can be added.
  • Any desired silicone resins can be used, preferably silicone combination resins, as described, for example, in the publication mentioned.
  • the printable lacquer layer can, for example, have a thickness of 1-50 ⁇ m. It can be pigmented or designed as a clear coat.
  • the glass fiber layer has at least one further material layer on the side facing away from the adhesive, which can in particular be formed by a further lacquer layer or by a further aluminum layer.
  • the further material layer is also preferably fixed to the glass fiber layer by means of a suitable adhesive, in which case a highly heat-resistant adhesive is also used, in particular a polysiloxane system.
  • a suitable adhesive in which case a highly heat-resistant adhesive is also used, in particular a polysiloxane system.
  • the further material layer is formed by a further aluminum layer
  • the same highly heat-resistant adhesive can be used, which ensures the connection of the aluminum layer, which is the main component, to the glass fiber layer.
  • the corresponding lacquer can be applied directly to the glass fiber layer without an additional adhesive layer.
  • the composite data carrier material according to the invention is used wherever a printed or printable data carrier material has to withstand high temperatures, ie without damaging the pressure applied, and where high demands are made on the tear resistance in relation to the material.
  • the applied lacquer layer must be printable.
  • the lacquer layer must be printable both by conventional printing processes, for example gravure printing, flexographic printing, offset printing, and by digital processes, for example thermal transfer printing.
  • the data carrier material shown has an aluminum-glass fiber composite layer as the carrier material, which has an aluminum foil 1 and a glass fiber layer 2 connected to it via an adhesive 3.
  • the glass fiber layer 2 is designed as a glass fiber fabric which has a structure adapted to the respective application can. In the case shown here, a fine glass fiber fabric is used that is appropriately impregnated.
  • the aluminum foil is a foil made of unannealed aluminum, which has a thickness of 50 ⁇ m, for example.
  • the aluminum foil 1 is connected to the glass fiber layer 2 via a suitable adhesive 3, which is highly heat-resistant.
  • the adhesive layer has a thickness of 20 ⁇ m.
  • a printable lacquer layer 4 On the side of the aluminum foil 1 facing away from the adhesive 3 there is a printable lacquer layer 4.
  • the example shown here is a silicone resin layer, a silicone combination resin being used specifically, such as is used, for example, in FIG EP 0 902 408 A2 is described.
  • the printable lacquer layer 4 here has a thickness of 4 ⁇ m. In the illustrated embodiment, a clear lacquer is used.
  • the lacquer layer 4 can be printed accordingly, with different printing methods being able to be used, in particular a thermal transfer printing method.
  • the exemplary data carrier material shown here is used as a label. It is characterized by a particularly high temperature stability or heat resistance of up to 450 ° C (e.g. radiation heat) and can be used wherever correspondingly high temperatures occur, ie in places with high temperature loads.
  • a particularly high temperature stability or heat resistance of up to 450 ° C e.g. radiation heat
  • One example is metal processing, where appropriate metal foil strips are provided with such labels.
  • FIG. 2 The illustrated embodiment of a data carrier material differs from that of Figure 1 only in that the material on the side of the glass fiber layer 2 facing away from the adhesive 3 has a further material layer, which is designed here as a further lacquer layer 5.
  • the glass fiber layer 2 is covered with this further lacquer layer 5.
  • this can be a layer made of the same material as the lacquer layer 4.
  • the thickness of the layer can also be corresponding.
  • the data carrier material of the Figure 3 is designed accordingly as the material of the Figure 1 and has, on the side of the glass fiber layer 2 facing away from the adhesive 3, an additional adhesive layer 6, with which a further aluminum foil 7 is glued to the glass fiber layer 2.
  • the glass fiber layer 2 is therefore covered with an aluminum foil 7.
  • all data carrier materials are characterized by particularly good tear resistance, which is improved by the reinforcement of the aluminum foil by the glass fiber layer.
  • the glue used to connect the aluminum foil to the Glass fiber layers ensure a solid bond between these materials, even at temperatures of up to 600 ° C.

Description

Die vorliegende Erfindung betrifft ein Datenträgermaterial enthaltend eine Aluminiumfolie und eine auf dieser angeordnete bedruckbare Lackschicht mit den Merkmalen des Oberbegriffs von Patentanspruch 1.The present invention relates to a data carrier material containing an aluminum foil and a printable lacquer layer arranged thereon with the features of the preamble of patent claim 1.

Ein derartiges Datenträgermaterial ist aus der EP 0 902 408 A2 bekannt. Das bekannte Datenträgermaterial weist eine Metallfolie und eine auf dieser angeordnete bedruckbare Silikonharzschicht auf. Es zeichnet sich durch eine relativ hohe Hitzebeständigkeit bzw. Temperaturbeständigkeit aus. Einsatzgebiete für solche Datenträgermaterialien sind solche, bei denen relativ hohe Temperaturen auftreten, wie beispielsweise in der Metallverarbeitung, wo entsprechende Metallfolienbänder mit Datenträgern versehen werden und zwecks Verdampfung der Walzölrückstände oder zur Erzielung bestimmter Kristallstrukturen einem nachträglichen Glühprozess unterzogen werden. Die an den Metallfolienbändern angebrachten Datenträger durchlaufen hierbei als Anhängeetiketten oder als aufgeklebte Etiketten mit den entsprechenden Prozess. Die auf den Datenträgern durch Bedrucken angebrachte Codierung durchläuft den entsprechenden Temperaturprozess bis zu 450°C (z.B. Abstrahlungshitze) und lässt sich anschließend automatisch mit den bekannten Erfassungsmethoden, beispielsweise Scannen, lesen und zuordnen. Dadurch werden die aufgebrachten Daten selbst nach der Applikation hoher Temperaturen gesichert und sind mit den bekannten Erkennungsverfahren digital verarbeitbar.Such a data carrier material is from EP 0 902 408 A2 known. The known data carrier material has a metal foil and a printable silicone resin layer arranged thereon. It is characterized by a relatively high heat resistance or temperature resistance. Areas of application for such data carrier materials are those at which relatively high temperatures occur, such as in metal processing, where corresponding metal foil strips are provided with data carriers and are subjected to a subsequent annealing process for the purpose of evaporation of the rolling oil residues or to achieve certain crystal structures. The data carriers attached to the metal foil strips run through here as hang tags or as stuck-on labels with the corresponding Process. The coding applied to the data carriers by printing runs through the corresponding temperature process up to 450 ° C (e.g. radiation heat) and can then be automatically read and assigned using the known detection methods, e.g. scanning. As a result, the applied data is saved even after the application of high temperatures and can be digitally processed with the known recognition methods.

Aus der US 3 828 454 A ist ein Datenträgermaterial mit den Merkmalen des Oberbegriffs von Patentanspruch 1 bekannt. Bei dem bekannten Datenträgermaterial findet eine Folie aus weich geglühtem Aluminium Verwendung, um bei einer Beschriftung eine Einprägung in die Aluminiumfolie zu ermöglichen und damit eine besonders lange Lesbarkeit der Beschriftung zu erreichen.From the U.S. 3,828,454 A a data carrier material with the features of the preamble of claim 1 is known. In the case of the known data carrier material, a foil made of soft-annealed aluminum is used in order to enable an embossing into the aluminum foil during inscription and thus to achieve a particularly long legibility of the inscription.

Die WO 93/07844 A1 beschreibt hochtemperaturfeste Etiketten, die eine Glasfaserschicht, jedoch keine Aluminiumschicht aufweisen.the WO 93/07844 A1 describes high-temperature-resistant labels that have a glass fiber layer but no aluminum layer.

Aus der US 2007/110942 A1 ist ein Band bekannt, das für die Herstellung von Plasma- und Thermosprayverfahren verwendet wird. Das Band kann optional eine Metallschicht, beispielsweise eine Aluminiumschicht, aufweisen. Über die Eigenschaften der Aluminiumschicht ist nichts ausgesagt.From the US 2007/110942 A1 a tape is known which is used for the manufacture of plasma and thermal spray processes. The band can optionally have a metal layer, for example an aluminum layer. Nothing is said about the properties of the aluminum layer.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein Datenträgermaterial der eingangs beschriebenen Art zu schaffen, das sich bei einer guten Hitzebeständigkeit durch eine besonders hohe Einreißfestigkeit auszeichnet.The present invention is based on the object of creating a data carrier material of the type described at the outset which, while having good heat resistance, is characterized by a particularly high tear resistance.

Diese Aufgabe wird erfindungsgemäß bei einem Datenträgermaterial der angegebenen Art durch das kennzeichnende Merkmal von Patentanspruch 1 gelöst.According to the invention, this object is achieved with a data carrier material of the specified type by the characterizing feature of patent claim 1.

Erfindungsgemäß wird somit ein Aluminium-Glasfaser-Verbundmaterial als Datenträgermaterial zur Verfügung gestellt. Hierbei wird durch die Verstärkung der Aluminiumfolie durch die vorgesehene Glasfaserschicht eine wesentliche Verbesserung der Einreißfestigkeit des Datenträgermateriales erreicht. Im Einzelnen ist dabei das erfindungsgemäß ausgebildete Datenträgermaterial wie folgt ausgebildet:
Das Trägermaterial für die bedruckbare Lackschicht ist ein Verbundmaterial aus einer Aluminiumfolie und einer Glasfaserschicht, die über eine geeignete hitzebeständige Kleberschicht miteinander verbunden sind. Als Aluminiumfolie kommt eine Folie aus ungeglühtem Aluminium zum Einsatz, da sich hiermit gegenüber einer Folie aus weichgeglühtem Aluminium Handhabungsvorteile ergeben. Aluminium hat den Vorteil, dass es sich um ein billiges, leicht verarbeitbares und allgemein erhältliches Material handelt. Die verwendete Aluminiumfolie hat vorzugsweise eine Dicke von 6 - 200 µm.According to the invention, an aluminum-glass fiber composite material is thus made available as a data carrier material. The reinforcement of the aluminum foil with the glass fiber layer provided here results in a significant improvement in the tear resistance of the data carrier material. In detail, the data carrier material designed according to the invention is designed as follows:
The carrier material for the printable lacquer layer is a composite material made of an aluminum foil and a glass fiber layer, which are connected to one another via a suitable heat-resistant adhesive layer. A foil made of unannealed aluminum is used as the aluminum foil, as this results in handling advantages over a foil made of soft-annealed aluminum. Aluminum has the advantage that it is a cheap, easy to process and generally available material. The aluminum foil used preferably has a thickness of 6-200 μm.

Für die Glasfaserschicht können je nach Anwendungsfall unterschiedliche Glasfasern eingesetzt werden. So kann vorzugsweise eine Glasfaserschicht aus einem Glasfasergewebe oder auch einem Glasfaservlies Verwendung finden, wobei hierbei eng und fein gewobene, grobe, dicke und dünne Strukturen Verwendung finden können, die imprägniert oder nicht imprägniert sind bzw. getränkt oder nicht getränkt sind. Als Substanzen zum Imprägnieren bzw. Tränken können übliche bekannte Materialien Verwendung finden, die beispielsweise zur Verbesserung der Einreißfestigkeit des Datenträgermaterials eingesetzt werden können. Die Dicke der Glasfaserschicht richtet sich hierbei ebenfalls nach den jeweiligen Anwendungsfällen. Vorzugsweise kommen hierbei Dicken von 10 bis 500 µm zum Einsatz.Different glass fibers can be used for the glass fiber layer depending on the application. For example, a glass fiber layer made of a glass fiber fabric or a glass fiber fleece can be used, in which case tightly and finely woven, coarse, thick and thin structures can be used that are impregnated or not impregnated or impregnated or not are. Conventional known materials can be used as substances for impregnation or impregnation, which can be used, for example, to improve the tear resistance of the data carrier material. The thickness of the glass fiber layer also depends on the respective application. Thicknesses of 10 to 500 µm are preferably used here.

Wie vorstehen bereits erwähnt, kann die Glasfaserschicht beliebige Strukturen aufweisen, wenn hiermit bei einer guten Hitzebeständigkeit eine besonders hohe Einreißfestigkeit erreicht wird. So kann die Glasfaserschicht beispielsweise auch eng- oder weitmaschige Glasfasernetze umfassen. Wesentlich ist, dass derartige Glasfaserstrukturen neben der erwähnten Hitzebeständigkeit und Einreißfestigkeit eine gute Haftung an der Aluminiumschicht aufweisen, die über die vorgesehen Kleberschicht erreicht werden kann.As already mentioned above, the glass fiber layer can have any desired structures if it achieves a particularly high tear resistance with good heat resistance. For example, the glass fiber layer can also comprise close-meshed or wide-meshed glass fiber networks. It is essential that such glass fiber structures, in addition to the heat resistance and tear resistance mentioned, have good adhesion to the aluminum layer, which can be achieved via the adhesive layer provided.

Wie vorstehend bereits ausgeführt, wird durch die Verstärkung der Aluminiumfolie durch die vorgesehene Glasfaserschicht eine besonders gute Einreißfestigkeit des Datenträger-Verbundmateriales erreicht. Darüber hinaus hat dieses Material eine Hitzefestigkeit bzw. Temperaturstabilität von bis zu 450°C. Um diese Materialeigenschaften zu erreichen, kommt es entscheidend auf die Verbindung zwischen Aluminiumfolie und Glasfasermaterial an, wobei diese Verbindung die entsprechenden hohen Temperaturen aushalten muss. Um dies zu gewährleisten, findet erfindungsgemäß ein hochhitzebeständiger Kleber Verwendung. Als besonders bevorzugt haben sich hierbei Polysiloxansysteme erwiesen. Es hat sich dabei gezeigt, dass mit einer Kleberschicht in einem Dickenbereich von 1 - 50 µm besonders gute Ergebnisse erzielt werden.As already stated above, the reinforcement of the aluminum foil by the provided glass fiber layer achieves a particularly good tear resistance of the data carrier composite material. In addition, this material has a heat resistance or temperature stability of up to 450 ° C. In order to achieve these material properties, the connection between aluminum foil and fiberglass material is crucial, and this connection must withstand the corresponding high temperatures. In order to ensure this, a highly heat-resistant adhesive is used according to the invention. Polysiloxane systems have proven to be particularly preferred here. It has shown that particularly good results can be achieved with an adhesive layer in a thickness range of 1 - 50 µm.

Bei einer speziellen Ausführungsform der Erfindung setzt sich die Glasfaserschicht aus mehreren Einzelschichten zusammen, die mit einem Kleber verbunden sind. Als Kleber kann hierbei beispielsweise der im vorhergehenden Absatz erwähnte Kleber vom Polysiloxantyp Verwendung finden.In a special embodiment of the invention, the glass fiber layer is composed of several individual layers which are connected with an adhesive. The adhesive of the polysiloxane type mentioned in the preceding paragraph can for example be used as the adhesive.

Bei noch einer anderen Ausführungsform sind in die Glasfaserschicht Metallbestandteile integriert. Hierbei kann die Glasfaserschicht als Glasfasergewebe ausgebildet sein, in das Metallfäden eingewebt sind. Eine derartige Glasfaser-Metall-Verbundschicht weist gute Ergebnisse in Bezug auf eine hohe Einreißfestigkeit auf.In yet another embodiment, metal components are integrated into the fiberglass layer. Here, the glass fiber layer can be designed as a glass fiber fabric into which metal threads are woven. A glass fiber-metal composite layer of this type has good results with regard to high tear resistance.

Als bedruckbare Lackschicht können Lackschichten Verwendung finden, die für die unterschiedlichsten Druckverfahren geeignet sind. Besonders geeignet sind hierbei Lackschichten, die für ein Thermotransfer-Druckverfahren geeignet sind.Lacquer layers which are suitable for a wide variety of printing processes can be used as the printable lacquer layer. Lacquer layers that are suitable for a thermal transfer printing process are particularly suitable here.

Eine bevorzugte Lackschicht ist eine solche auf Silikonharzbasis, wie sie auch beispielsweise in der eingangs genannten EP 0 902 408 A2 beschrieben ist. Generell wird hierbei ein geeignetes Harz, insbesondere Silikonharz, auf die Aluminiumfolie oder auf die Aluminium-Glasfaser-Verbundfolie als Lack aufgebracht, dabei insbesondere in organischen Lösungsmitteln gelöst. Derartige Lösungsmittel sind bekannt. Bekannte Lackhilfsmittel, wie Entschäumer, Verlaufsmittel etc., können zugesetzt werden. Es können beliebige Silikonharze zum Einsatz kommen, vorzugsweise Silikonkombinationsharze, wie sie beispielsweise in der erwähnten Veröffentlichung beschrieben sind.A preferred lacquer layer is one based on silicone resin, as is also the case, for example, in the one mentioned at the beginning EP 0 902 408 A2 is described. In general, a suitable resin, in particular silicone resin, is applied as a lacquer to the aluminum foil or to the aluminum-glass fiber composite foil, in particular dissolved in organic solvents. Such solvents are known. Known paint auxiliaries, such as defoamers, leveling agents etc., can be added. Any desired silicone resins can be used, preferably silicone combination resins, as described, for example, in the publication mentioned.

Die bedruckbare Lackschicht kann beispielsweise eine Dicke von 1 - 50 µm besitzen. Sie kann pigmentiert oder als Klarlackschicht ausgebildet sein.The printable lacquer layer can, for example, have a thickness of 1-50 μm. It can be pigmented or designed as a clear coat.

Bei einer weiteren Ausführungsform des erfindungsgemäß ausgebildeten Datenträgermateriales weist die Glasfaserschicht auf der vom Kleber abgewandten Seite mindestens eine weitere Materialschicht auf, die insbesondere von einer weiteren Lackschicht oder von einer weiteren Aluminiumschicht gebildet sein kann. Die weitere Materialschicht ist ebenfalls vorzugsweise über einen geeigneten Kleber an der Glasfaserschicht fixiert, wobei auch in diesem Falle ein hochhitzebeständiger Kleber zum Einsatz gelangt, insbesondere ein Polysiloxansystem. Dabei kann in dem Fall, in dem die weitere Materialschicht von einer weiteren Aluminiumschicht gebildet ist, der gleiche hochhitzebeständige Kleber Verwendung finden, der für die Verbindung der den Hauptbestandteil bildenden Aluminiumschicht mit der Glasfaserschicht sorgt. Findet als weitere Materialschicht eine weitere Lackschicht Verwendung, kann der entsprechende Lack ohne zusätzliche Haftschicht direkt auf die Glasfaserschicht aufgebracht werden.In a further embodiment of the data carrier material designed according to the invention, the glass fiber layer has at least one further material layer on the side facing away from the adhesive, which can in particular be formed by a further lacquer layer or by a further aluminum layer. The further material layer is also preferably fixed to the glass fiber layer by means of a suitable adhesive, in which case a highly heat-resistant adhesive is also used, in particular a polysiloxane system. In the case in which the further material layer is formed by a further aluminum layer, the same highly heat-resistant adhesive can be used, which ensures the connection of the aluminum layer, which is the main component, to the glass fiber layer. If another layer of lacquer is used as a further material layer, the corresponding lacquer can be applied directly to the glass fiber layer without an additional adhesive layer.

Das erfindungsgemäße Datenträger-Verbundmaterial findet überall dort Verwendung, wo ein bedrucktes oder bedruckbares Datenträgermaterial hohe Temperaturen aushalten muss, d. h. ohne Beschädigung des aufgebrachten Druckes, und wo in Bezug auf das Material hohe Anforderungen an die Einreißfestigkeit gestellt werden.The composite data carrier material according to the invention is used wherever a printed or printable data carrier material has to withstand high temperatures, ie without damaging the pressure applied, and where high demands are made on the tear resistance in relation to the material.

Damit die erfindungsgemäße Verbundfolie als Datenträgermaterial wirken kann, muss die aufgebrachte Lackschicht bedruckbar sein. Hiermit ist gemeint, dass die Lackschicht sowohl nach herkömmlichen Druckverfahren, beispielsweise Tiefdruck, Flexodruck, Offsetdruck, als auch nach digitalen Verfahren, beispielsweise Thermotransferdruck, bedruckbar sein muss.So that the composite film according to the invention can act as a data carrier material, the applied lacquer layer must be printable. This means that the lacquer layer must be printable both by conventional printing processes, for example gravure printing, flexographic printing, offset printing, and by digital processes, for example thermal transfer printing.

Die Erfindung wird nachfolgend anhand von Ausführungsbeispielen in Verbindung mit der Zeichnung im Einzelnen erläutert. Es zeigen:

Figur 1
Eine erste Ausführungsform eines Datenträgermatieriales im Vertikalschnitt;
Figur 2
eine zweite Ausführungsform eines Datenträgermateriales im Vertikalschnitt; und
Figur 3
eine dritte Ausführungsform eines Datenträgermateriales im Vertikalschnitt.
The invention is explained in detail below using exemplary embodiments in conjunction with the drawing. Show it:
Figure 1
A first embodiment of a data carrier material in vertical section;
Figure 2
a second embodiment of a data carrier material in vertical section; and
Figure 3
a third embodiment of a data carrier material in vertical section.

Das in Figur 1 dargestellte Datenträgermaterial besitzt als Trägermaterial eine Aluminium-Glasfaser-Verbundschicht, die eine Aluminiumfolie 1 und eine damit über einen Kleber 3 verbundene Glasfaserschicht 2 aufweist. Die Glasfaserschicht 2 ist als Glasfasergewebe ausgebildet, das eine für den jeweiligen Anwendungsfall angepasste Struktur aufweisen kann. Bei dem hier dargestellten Fall kommt ein feines Glasfasergewebe zur Anwendung, das entsprechend imprägniert ist.This in Figure 1 The data carrier material shown has an aluminum-glass fiber composite layer as the carrier material, which has an aluminum foil 1 and a glass fiber layer 2 connected to it via an adhesive 3. The glass fiber layer 2 is designed as a glass fiber fabric which has a structure adapted to the respective application can. In the case shown here, a fine glass fiber fabric is used that is appropriately impregnated.

Bei der Aluminiumfolie handelt es sich um eine Folie aus ungeglühtem Aluminium, die beispielsweise eine Dicke von 50 µm besitzt.The aluminum foil is a foil made of unannealed aluminum, which has a thickness of 50 μm, for example.

Die Aluminiumfolie 1 ist mit der Glasfaserschicht 2 über einen geeigneten Kleber 3 verbunden, der hochhitzebeständig ist. Die Kleberschicht besitzt bei dem hier gezeigten Beispiel eine Dicke von 20 µm.The aluminum foil 1 is connected to the glass fiber layer 2 via a suitable adhesive 3, which is highly heat-resistant. In the example shown here, the adhesive layer has a thickness of 20 μm.

Auf der vom Kleber 3 abgewandten Seite der Aluminiumfolie 1 befindet sich eine bedruckbare Lackschicht 4. Bei dem hier dargestellten Beispiel handelt es sich um eine Silikonharzschicht, wobei speziell ein Silikonkombinationsharz Verwendung findet, wie er beispielsweise in der EP 0 902 408 A2 beschrieben ist. Die bedruckbare Lackschicht 4 hat hier eine Dickte von 4 µm. Es kommt bei dem dargestellten Ausführungsbeispiel ein Klarlack zum Einsatz.On the side of the aluminum foil 1 facing away from the adhesive 3 there is a printable lacquer layer 4. The example shown here is a silicone resin layer, a silicone combination resin being used specifically, such as is used, for example, in FIG EP 0 902 408 A2 is described. The printable lacquer layer 4 here has a thickness of 4 μm. In the illustrated embodiment, a clear lacquer is used.

Die Lackschicht 4 kann entsprechend bedruckt werden, wobei unterschiedliche Druckverfahren zum Einsatz kommen können, insbesondere ein Thermotransferdruckverfahren.The lacquer layer 4 can be printed accordingly, with different printing methods being able to be used, in particular a thermal transfer printing method.

Das hier dargestellte beispielhafte Datenträgermaterial kommt als Etikett zum Einsatz. Es zeichnet sich durch eine besonders hohe Temperaturstabilität bzw. Hitzefestigkeit von bis zu 450°C (z.B. Abstrahlungshitze) aus und kann überall dort eingesetzt werden, wo entsprechend hohe Temperaturen auftreten, d. h. an Stellen mit hoher Temperaturbelastung. Ein Beispiel ist die Metallverarbeitung, wo entsprechende Metallfolienbänder mit derartigen Etiketten versehen werden.The exemplary data carrier material shown here is used as a label. It is characterized by a particularly high temperature stability or heat resistance of up to 450 ° C (e.g. radiation heat) and can can be used wherever correspondingly high temperatures occur, ie in places with high temperature loads. One example is metal processing, where appropriate metal foil strips are provided with such labels.

Die in Figur 2 dargestellte Ausführungsform eines Datenträgermateriales unterscheidet sich von der der Figur 1 nur dadurch, dass das Material auf der vom Kleber 3 abgewandten Seite der Glasfaserschicht 2 eine weitere Materialschicht aufweist, die hier als weitere Lackschicht 5 ausgebildet ist. Mit dieser weiteren Lackschicht 5 wird die Glasfaserschicht 2 abgedeckt. Beispielsweise kann es sich hierbei um eine Schicht aus dem gleichen Material wie die Lackschicht 4 handeln. Auch die Dicke der Schicht kann entsprechend sein.In the Figure 2 The illustrated embodiment of a data carrier material differs from that of Figure 1 only in that the material on the side of the glass fiber layer 2 facing away from the adhesive 3 has a further material layer, which is designed here as a further lacquer layer 5. The glass fiber layer 2 is covered with this further lacquer layer 5. For example, this can be a layer made of the same material as the lacquer layer 4. The thickness of the layer can also be corresponding.

Das Datenträgermaterial der Figur 3 ist entsprechend ausgebildet wie das Material der Figur 1 und weist auf der vom Kleber 3 abgewandten Seite der Glasfaserschicht 2 eine zusätzliche Kleberschicht 6 auf, mit der eine weitere Aluminiumfolie 7 mit der Glasfaserschicht 2 verklebt ist. Bei dieser Ausführungsform ist daher die Glasfaserschicht 2 mit einer Aluminiumfolie 7 abgedeckt.The data carrier material of the Figure 3 is designed accordingly as the material of the Figure 1 and has, on the side of the glass fiber layer 2 facing away from the adhesive 3, an additional adhesive layer 6, with which a further aluminum foil 7 is glued to the glass fiber layer 2. In this embodiment, the glass fiber layer 2 is therefore covered with an aluminum foil 7.

Sämtliche Datenträgermaterialien zeichnen sich neben einer hohen Hitzebeständigkeit durch eine besonders gute Einreißfestigkeit aus, die durch die Verstärkung der Aluminiumfolie durch die Glasfaserschicht verbessert wird. Die eingesetzten Kleber zur Verbindung der Aluminiumfolie mit der Glasfaserschicht stellen einen festen Verbund zwischen diesen Materialien sicher, und zwar selbst bei Temperaturen bis zu 600°C.In addition to high heat resistance, all data carrier materials are characterized by particularly good tear resistance, which is improved by the reinforcement of the aluminum foil by the glass fiber layer. The glue used to connect the aluminum foil to the Glass fiber layers ensure a solid bond between these materials, even at temperatures of up to 600 ° C.

Claims (15)

  1. A data carrier material containing an aluminum foil (1) and a printable layer of lacquer (4) arranged thereon, wherein the data carrier material comprises a layer of adhesive (3) on the side of the aluminum foil (1) facing away from the printable layer of lacquer (4) and a layer of glass fibers (2) on said layer of adhesive, characterized in that the aluminum foil (1) is a foil consisting of unannealed aluminum.
  2. The data carrier material according to claim 1, characterized in that the layer of adhesive (3) comprises a polysiloxane system.
  3. The data carrier material according to claim 1 or 2, characterized in that the layer of glass fibers (2) comprises at least one additional layer of material on the side facing away from the adhesive (3).
  4. The data carrier material according to claim 3, characterized in that the additional layer of material is formed of an additional layer of lacquer (5).
  5. The data carrier material according to claim 3, characterized in that the additional layer of material is an additional layer of aluminum (7).
  6. The data carrier material according to any one of the preceding claims, characterized in that the aluminum foil (1) has a thickness of 6 - 200 µm.
  7. The data carrier material according to any one of the preceding claims, characterized in that the layer of adhesive (3) has a thickness of 1 - 50 µm.
  8. The data carrier material according to any one of the preceding claims, characterized in that the printable layer of lacquer (4) has a thickness of 1 - 50 µm.
  9. The data carrier material according to any one of the preceding claims, characterized in that the printable layer of lacquer (4) is pigmented.
  10. The data carrier material according to any one of the preceding claims, characterized in that the printable layer of lacquer (4) is designed as a layer of silicone resin.
  11. The data carrier material according to any one of the preceding claims, characterized in that the layer of glass fibers is composed of multiple individual layers that are bonded by means of an adhesive.
  12. The data carrier material according to any one of the preceding claims, characterized in that metal components are integrated into the layer of glass fibers.
  13. The data carrier material according to claim 12, characterized in that the layer of glass fibers is designed as a glass fiber fabric into which metal threads are woven.
  14. The data carrier material according to any one of the preceding claims, characterized in that it is designed as a label.
  15. A heat-resistant label, characterized in that it comprises a data carrier material according to any one of the preceding claims.
EP18000905.2A 2018-11-16 2018-11-16 Data carrier material with improved tear resistance Active EP3654317B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP18000905.2A EP3654317B1 (en) 2018-11-16 2018-11-16 Data carrier material with improved tear resistance
PCT/DE2019/000051 WO2020098848A1 (en) 2018-11-16 2019-03-05 Data carrier material with improved edge tear resistance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18000905.2A EP3654317B1 (en) 2018-11-16 2018-11-16 Data carrier material with improved tear resistance

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EP3654317A1 EP3654317A1 (en) 2020-05-20
EP3654317B1 true EP3654317B1 (en) 2021-12-29

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Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3828454A (en) * 1972-12-13 1974-08-13 Bethlehem Steel Corp Destruction resistant tag
WO1993007844A1 (en) * 1991-10-16 1993-04-29 W.H. Brady Co. High temperature resistant identifying labels
DE19739677C2 (en) 1997-09-10 2001-05-03 Feron Aluminium Data media
JP2004012552A (en) * 2002-06-03 2004-01-15 Lintec Corp Self-adhesive management tag with unsealing indication function and method for using same
US20070110942A1 (en) * 2005-02-14 2007-05-17 Scapa North America Novel enhanced high temperature tapes for high velocity Oxy fuel processes
US7897528B2 (en) * 2005-05-31 2011-03-01 Mikhail Finkel Heat resistant labels
WO2015027236A1 (en) * 2013-08-23 2015-02-26 Flexcon Company, Inc. High temperature label composites and methods of labeling high temperature materials

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WO2020098848A1 (en) 2020-05-22

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