EP0676503A2 - Metallized wrapping material - Google Patents

Metallized wrapping material Download PDF

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Publication number
EP0676503A2
EP0676503A2 EP95105292A EP95105292A EP0676503A2 EP 0676503 A2 EP0676503 A2 EP 0676503A2 EP 95105292 A EP95105292 A EP 95105292A EP 95105292 A EP95105292 A EP 95105292A EP 0676503 A2 EP0676503 A2 EP 0676503A2
Authority
EP
European Patent Office
Prior art keywords
lubricant
packaging material
material according
waxes
amount
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
EP95105292A
Other languages
German (de)
French (fr)
Other versions
EP0676503A3 (en
EP0676503B1 (en
Inventor
Uwe Rolf Schwamborn
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.)
Novelis Deutschland GmbH
Original Assignee
Alcan Deutschland GmbH
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Filing date
Publication date
Application filed by Alcan Deutschland GmbH filed Critical Alcan Deutschland GmbH
Publication of EP0676503A2 publication Critical patent/EP0676503A2/en
Publication of EP0676503A3 publication Critical patent/EP0676503A3/en
Application granted granted Critical
Publication of EP0676503B1 publication Critical patent/EP0676503B1/en
Anticipated expiration legal-status Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B65D65/42—Applications of coated or impregnated materials
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/02—Metal coatings
    • D21H19/08—Metal coatings applied as vapour, e.g. in vacuum
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/10—Coatings without pigments
    • D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/10—Coatings without pigments
    • D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
    • D21H19/20—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/10—Coatings without pigments
    • D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
    • D21H19/20—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H19/22—Polyalkenes, e.g. polystyrene
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/10—Coatings without pigments
    • D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
    • D21H19/24—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H19/32—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds obtained by reactions forming a linkage containing silicon in the main chain of the macromolecule
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/80—Paper comprising more than one coating
    • D21H19/82—Paper comprising more than one coating superposed
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/10—Packing paper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/07—Containers, packaging elements or packages, specially adapted for particular articles or materials for compressible or flexible articles
    • B65D85/08—Containers, packaging elements or packages, specially adapted for particular articles or materials for compressible or flexible articles rod-shaped or tubular
    • B65D85/10—Containers, packaging elements or packages, specially adapted for particular articles or materials for compressible or flexible articles rod-shaped or tubular for cigarettes
    • B65D85/1018—Container formed by a flexible material, i.e. soft-packages

Definitions

  • the invention relates to a metallized packaging material made of paper with a lubricant applied to it, a method for its production and its use, in particular for the packaging of cigarettes.
  • Paper or plastic films with a metal coating are widely used as packaging materials.
  • a typical field of application is the packaging of cigarettes with a cigarette wrapper or inner winder made of aluminum-coated paper. This inner cigarette wrapper forms the inner lining of the cigarette box and is intended to protect against loss of aroma and drying out of the cigarettes even after prolonged storage.
  • Internal cigarette winders usually consist of a composite of paper and aluminum foil, an aluminum foil being laminated onto the paper layer. Because of the high cost of aluminum, of which approx. 20 g / m2 is required for such a composite, and also because of the more difficult material separation, it has in some cases already started to use a metallized paper instead of the paper / aluminum foil composite.
  • the metal content, usually aluminum, is only about 0.02 to 0.25 g / m2 and is negligible when recycling.
  • the vapor-deposited or otherwise applied metal layer tends to occur during the transport, embossing and folding processes in the machine pass for peeling.
  • the exfoliated metal particles can lead to malfunctions in the sensitive electronics of the high-speed machine and to deposits in the machines or the packaging, so that the metal layer must be protected against abrasion with a protective lacquer.
  • DE-OS 36 32 376 it is proposed to use a biaxially stretch-oriented and metallized plastic film produced by extrusion instead of paper. Before the plastic film is metallized, the surface must be corona-treated, and here too the metal layer can be painted to protect it.
  • DE-OS 34 43 319 discloses a metallized plastic film which is provided with a sliding film on its metallized surface. This should protect the metal layer from damage, e.g. by scratching, which in particular reduces the gas tightness of the film.
  • the present invention is therefore based on the object of producing a metallized packaging material made of paper To provide, in which there are no problems with the flaking of metal particles during processing, which is very easy to machine, easy to recycle and also helps to avoid high manufacturing and / or material costs.
  • Lubricant is known to the person skilled in the art as a common name for a defined group of compounds which are usually used in the production of plastics.
  • Lubricants are used as additives filled plastic masses, e.g. Molding compounds and injection molding compounds, added to make the fillers slide more smoothly and thus make the molding compounds easier to deform. Part of the lubricant migrates to the surface due to its insolubility in the plastics, where it acts as a release agent. For paints, lubricants can reduce friction between pigment particles and unwanted gluing.
  • lubricants belong to the following chemical classes: paraffins, polyethylene waxes, polypropylene waxes modified with maleic anhydride, ester and Acid waxes, amide waxes, polytetrafluoroethylene waxes, polytetrafluoroethylene / polyethylene waxes, ethyl vinyl acetate copolymer waxes, natural waxes, fatty alcohols, fatty acids, metal soaps, fatty acid esters, solid acid amides, siloxanes and sulfated oils. According to the invention, they can be used as a single compound or in mixtures which are compatible with one another. Most lubricants are commercially available and can be used directly without further preparation.
  • the lubricant is a paraffin, it is preferably selected from predominantly branched-chain liquid hydrocarbons or from predominantly straight-chain solid hydrocarbons.
  • Polyethylene waxes as lubricants are advantageously selected from polyethylenes with an average molecular weight of 2,000 to 12,000 or from air-oxidized low molecular weight polyethylenes.
  • a preferred natural wax is carnauba wax.
  • Typical representatives of fatty acids as lubricants are stearic acid, 12-hydroxystearic acid and montanic acids (mixture of long-chain carboxylic acids with 26 to 33 carbon atoms).
  • Metal soaps are also suitable as lubricants. Calcium stearate, magnesium stearate and zinc stearate are preferably used.
  • Fatty acid esters as lubricants are preferably selected from fatty acid esters of short-chain monohydric alcohols, fatty acid esters of long-chain monohydric alcohols, glycol fatty acid esters, glycerol fatty acid esters, montanic acid ester waxes, solid or liquid high molecular weight mixed esters or from esters of polybasic carboxylic acids.
  • Typical representatives of this class of compounds are n-butyl stearate, stearyl stearate, propylene glycol monooleate, glycerol monooleate, glycerol monostearate, distearyl adipate, distearyl phthalate, polycondensates of pentaerythritol + adipic acid + oleic acid or stearic acid, and esters of montanic acids mixed with free montanic acids.
  • a solid acid amide as a lubricant is advantageously a fatty acid amide selected from oleic acid amide, erucic acid amide or stearic acid amide, or N, N'-bis-stearoyl-ethylenediamine.
  • the packaging material according to the present invention is not a metal / paper composite, but the paper base was metallized by applying a thin metal layer.
  • This layer can be applied by methods known per se. Vacuum deposition, cathode spraying, plasma spraying, vapor phase plating, current-free plating, electroplating, vapor deposition or mounting are common.
  • the metallic coating preferably consists of gold, silver, copper, aluminum or mixtures or alloys of two or more of these metals. Aluminum is a particularly preferred coating metal.
  • paper also includes cardboard which can be used depending on the intended use. In the case of paper or cardboard, it may be advantageous to additionally treat the paper with a customary primer in an amount of 0.5 to 2.5 g / m2 before applying the metal layer.
  • the lubricant is applied to the metallized paper base in an amount of 0.5 to 100 mg / m 2 using customary methods upset. In general, smaller amounts are sufficient. An application of 15 to 25 mg / m2 has proven to be advantageous.
  • the lubricant can be sprayed on or spread on.
  • the lubricant is preferably applied as an aqueous dispersion in a spreading operation and then allowed to dry.
  • the structure of a cigarette winder according to the invention is compared below with a cigarette winder according to the prior art: Structure of the inner cigarette winder innovative solution State of the art Coated paper 30 - 80 g / m2 30 - 80 g / m2 Primer 1.0-2.5 g / m2 1.0-2.5 g / m2 Aluminum metallization 25-55 nm 25-55 nm Protective varnish --- 0.5-2.0 g / m2 lubricant approx. 20 mg / m2 ---
  • the lubricant film not only meets the same requirements as a protective coating, but also advantageously results in a better flatness of the material in the machine.
  • Replacing the protective lacquer with a lubricant is not only possible in an advantageous manner for metallized paper for use as an internal cigarette winder, but also for all other uses of metallized paper, such as, for example, as decorative or gift paper.
  • a conventional primer is applied in an amount of 0.5 to 2.5 g / m2 on the paper, on which an aluminum layer is evaporated in an amount of 0.02 to 0.2 g / m2.
  • a polyethylene wax dispersed in aqueous solution is applied as a lubricant so that after drying the amount of lubricant applied is 0.5 to 50 mg / m2.
  • the cigarette inner winder produced with this construction according to the invention is very easy to machine, has a high abrasion resistance and can be provided with the lubricant in a simple and inexpensive manner.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Paper (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Wrappers (AREA)

Abstract

Metallised packaging material (I), esp. for packaging cigarettes, comprises paper coated with a layer of metal in amts. of 0.02-0.25 g/m<2>, and with a layer of slip additive (II) applied to the metal layer in amts. of 0.5-100 mg/m<2>. Also claimed is a process for the prodn. of (I), by applying (II) to metal-coated paper as above.

Description

Die Erfindung betrifft ein metallisiertes Verpackungsmaterial aus Papier mit einem hierauf aufgebrachten Gleitmittel, ein Verfahren zu seiner Herstellung sowie seine Verwendung, insbesondere für die Verpackung von Zigaretten.The invention relates to a metallized packaging material made of paper with a lubricant applied to it, a method for its production and its use, in particular for the packaging of cigarettes.

Papier oder Kunststoffolien mit einem Metallüberzug werden weitverbreitet als Verpackungsmaterialen eingesetzt. Ein typisches Anwendungsfeld ist die Verpackung von Zigaretten mit einem Zigaretteninneneinschlag oder -innenwickler aus aluminiumbeschichtetem Papier. Dieser Zigaretteninnenwickler bildet die innere Auskleidung der Zigarettenschachtel und soll einen Schutz gegen Aromaverlust und Austrocknen der Zigaretten auch nach längerer Lagerung gewährleisten.Paper or plastic films with a metal coating are widely used as packaging materials. A typical field of application is the packaging of cigarettes with a cigarette wrapper or inner winder made of aluminum-coated paper. This inner cigarette wrapper forms the inner lining of the cigarette box and is intended to protect against loss of aroma and drying out of the cigarettes even after prolonged storage.

Zigaretteninnenwickler bestehen üblicherweise aus einem Verbund von Papier und Aluminiumfolie, wobei auf die Papierlage eine Aluminiumfolie aufkaschiert wird. Wegen der hohen Kosten des Aluminiums, von dem für einen solchen Verbund ca. 20 g/m² benötigt werden, und auch aus Gründen der schwierigeren Materialtrennung, ist man teilweise schon dazu übergegangen, anstelle des Papier/Aluminiumfolien-Verbundes ein metallisiertes Papier zu verwenden. Der Metallanteil, üblicherweise Aluminium, beträgt hierbei nur noch ca. 0,02 bis 0,25 g/m² und ist beim Recyclieren vernachläßigbar.Internal cigarette winders usually consist of a composite of paper and aluminum foil, an aluminum foil being laminated onto the paper layer. Because of the high cost of aluminum, of which approx. 20 g / m² is required for such a composite, and also because of the more difficult material separation, it has in some cases already started to use a metallized paper instead of the paper / aluminum foil composite. The metal content, usually aluminum, is only about 0.02 to 0.25 g / m² and is negligible when recycling.

Die aufgedampfte oder in sonstiger Weise aufgebrachte Metallschicht neigt jedoch, anders als eine durchgängige Aluminiumfolie im Aluminium/Papier-Verbund oder eine auf Kunststoffolie aufgebrachte Metallschicht, bei den Transport-, Präge- und Falzvorgängen im Maschinendurchlauf zum Abblättern. Die abgeblätterten Metallpartikel können dabei zu Störungen in der empfindlichen Elektronik der schnellaufenden Maschine sowie zu Ablagerungen in den Maschinen oder den Verpackungen führen, so daß die Metallschicht mit einem Schutzlack gegen Abrieb geschützt werden muß.However, unlike a continuous aluminum foil in the aluminum / paper composite or a metal layer applied to a plastic film, the vapor-deposited or otherwise applied metal layer tends to occur during the transport, embossing and folding processes in the machine pass for peeling. The exfoliated metal particles can lead to malfunctions in the sensitive electronics of the high-speed machine and to deposits in the machines or the packaging, so that the metal layer must be protected against abrasion with a protective lacquer.

Nachteilig hierbei ist, daß der Auftrag von Schutzlack ein aufwendiges und kostenintensives Lackierverfahren erfordert, um eine gleichmäßig abdeckende Schutzschicht zu erhalten. Ferner führt die Schutzlackschicht zu Problemen beim Recycling des Papiers.The disadvantage here is that the application of protective lacquer requires a complex and costly painting process in order to obtain a uniformly covering protective layer. Furthermore, the protective lacquer layer leads to problems when recycling the paper.

Die Verwendung von Schutzlacken bei metallisierten Folien oder Papieren beruht hauptsächlich auf dem Vorurteil, daß ein Herauslösen von metallenen Partikeln aus der Metallschicht nur dadurch verhindert werden kann, daß diese Partikel durch einen Schutzlack gegen Abrieb geschützt werden. Gemäß DE 14 61 217 C3 werden die Metallpartikel ganz in ein Bindemittel eingebunden.The use of protective lacquers in metallized foils or papers is mainly based on the prejudice that the detachment of metallic particles from the metal layer can only be prevented by protecting these particles against abrasion with a protective lacquer. According to DE 14 61 217 C3, the metal particles are fully integrated in a binder.

In DE-OS 36 32 376 wird vorgeschlagen, anstelle des Papiers eine durch Extrusion hergestellte, biaxial streckorientierte und metallisierte Kunststoffolie zu verwenden. Vor der Metallisierung der Kunststoffolie muß die Oberfläche coronabehandelt werden, wobei auch hier die Metallschicht zu ihrem Schutz lackiert sein kann.In DE-OS 36 32 376 it is proposed to use a biaxially stretch-oriented and metallized plastic film produced by extrusion instead of paper. Before the plastic film is metallized, the surface must be corona-treated, and here too the metal layer can be painted to protect it.

DE-OS 34 43 319 offenbart eine metallisierte Kunststoffolie, die auf ihrer metallisierten Oberfläche mit einem Gleitfilm versehen ist. Hierdurch soll die Metallschicht vor Beschädigung, z.B. durch Verkratzen, wodurch insbesondere die Gasdichtigkeit der Folie herabgesetzt wird, geschützt werden.DE-OS 34 43 319 discloses a metallized plastic film which is provided with a sliding film on its metallized surface. This should protect the metal layer from damage, e.g. by scratching, which in particular reduces the gas tightness of the film.

Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, ein metallisiertes Verpackungsmaterial aus Papier zur Verfügung zu stellen, bei dem keine Probleme mit dem Abblättern von Metallpartikeln bei der Verarbeitung auftreten, das sehr gut maschinengängig ist, leicht zu recyclieren ist und zudem hohe Herstell- und/oder Materialkosten vermeiden hilft.The present invention is therefore based on the object of producing a metallized packaging material made of paper To provide, in which there are no problems with the flaking of metal particles during processing, which is very easy to machine, easy to recycle and also helps to avoid high manufacturing and / or material costs.

Gelöst wird die obige Aufgabe daher durch ein metallisiertes Verpackungsmaterial aus Papier mit einer hierauf in einer Menge von 0,02 bis 0,25 g/m² aufgebrachten Metallschicht, welches dadurch gekennzeichnet ist, daß auf die Metallschicht ein Gleitmittel in einer Menge von 0,5 bis 100 mg/m² aufgebracht ist.The above object is therefore achieved by a metallized packaging material made of paper with a metal layer applied thereon in an amount of 0.02 to 0.25 g / m², which is characterized in that a lubricant in an amount of 0.5 on the metal layer up to 100 mg / m² is applied.

Der Begriff "Gleitmittel" ist dem Fachmann als gängige Bezeichnung für eine definierte Gruppe von Verbindungen bekannt, die üblicherweise bei der Kunststoffherstellung Verwendung finden. Gleitmittel werden als Zusatzstoffe gefüllten plastischen Massen, z.B. Preßmassen und Spritzgutmassen, zugesetzt, um die Füllstoffe leichter gleitend und die Preßmassen damit leichter verformbar zu machen. Ein Teil des Gleitmittels wandert hierbei infolge seiner Unlöslichkeit in den Kunststoffen an die Oberfläche und wirkt dort als Trennmittel. Bei Anstrichstoffen können Gleitmittel die Reibung zwischen den Pigmentteilchen und unerwünschtes Kleben vermindern.The term "lubricant" is known to the person skilled in the art as a common name for a defined group of compounds which are usually used in the production of plastics. Lubricants are used as additives filled plastic masses, e.g. Molding compounds and injection molding compounds, added to make the fillers slide more smoothly and thus make the molding compounds easier to deform. Part of the lubricant migrates to the surface due to its insolubility in the plastics, where it acts as a release agent. For paints, lubricants can reduce friction between pigment particles and unwanted gluing.

Überraschend wurde nun gefunden, daß ein Schutzlackauftrag nicht notwendig ist, wenn ein Gleitmittel der oben bezeichneten Art auf die metallisierte Oberfläche des Verpackungsmaterials aufgetragen wird. Auf diese Weise wird auch ohne Schutzlack ein Ablösen, Hängenbleiben oder Festhaken von Metallpartikeln an den Präge-, Falz- und/oder Umlenkteilen wirksam verhindert und Abrieb vermieden.Surprisingly, it has now been found that a protective lacquer application is not necessary if a lubricant of the type described above is applied to the metallized surface of the packaging material. In this way, detachment, sticking or hooking of metal particles on the embossed, folded and / or deflected parts is effectively prevented and abrasion is avoided even without a protective lacquer.

Die gebräuchlichsten Gleitmittel gehören den folgenden chemischen Klassen an: Paraffine, Polyethylen-Wachse, mit Maleinsäureanhydrid modifizierte Polypropylen-Wachse, Ester- und Säurewachse, Amidwachse, Polytetrafluorethylen-Wachse, Polytetrafluorethylen/Polyethylen-Wachse, Ethyl-Vinylacetat-Copolymer-Wachse, Naturwachse, Fettalkohole, Fettsäuren, Metallseifen, Fettsäureester, feste Säureamide, Siloxane und sulfatierte Öle. Sie können erfindungsgemäß als einzelne Verbindung oder in mit einander verträglichen Mischungen verwendet werden. Die meisten Gleitmittel sind handelsüblich erhältlich und können ohne weitere Aufbereitung direkt eingesetzt werden.The most common lubricants belong to the following chemical classes: paraffins, polyethylene waxes, polypropylene waxes modified with maleic anhydride, ester and Acid waxes, amide waxes, polytetrafluoroethylene waxes, polytetrafluoroethylene / polyethylene waxes, ethyl vinyl acetate copolymer waxes, natural waxes, fatty alcohols, fatty acids, metal soaps, fatty acid esters, solid acid amides, siloxanes and sulfated oils. According to the invention, they can be used as a single compound or in mixtures which are compatible with one another. Most lubricants are commercially available and can be used directly without further preparation.

Ist das Gleitmittel ein Paraffin, ist es bevorzugt ausgewählt aus vorwiegend verzweigtkettigen flüssigen Kohlenwasserstoffen oder aus vorwiegend geradkettigen festen Kohlenwasserstoffen.If the lubricant is a paraffin, it is preferably selected from predominantly branched-chain liquid hydrocarbons or from predominantly straight-chain solid hydrocarbons.

Polyethylen-Wachse als Gleitmittel werden vorteilhaft aus Polyethylenen mit einer mittleren Molmasse von 2000 bis 12000 oder aus luftoxidierten niedermolekularen Polyethylenen ausgewählt.Polyethylene waxes as lubricants are advantageously selected from polyethylenes with an average molecular weight of 2,000 to 12,000 or from air-oxidized low molecular weight polyethylenes.

Ein bevorzugtes Naturwachs ist Carnaubawachs.A preferred natural wax is carnauba wax.

Typische Vertreter von Fettsäuren als Gleitmittel sind Stearinsäure, 12-Hydroxystearinsäure und Montansäuren (Gemisch langkettiger Carbonsäuren mit 26 bis 33 Kohlenstoffatomen).Typical representatives of fatty acids as lubricants are stearic acid, 12-hydroxystearic acid and montanic acids (mixture of long-chain carboxylic acids with 26 to 33 carbon atoms).

Auch Metallseifen sind als Gleitmittel geeignet. Bevorzugt werden Calciumstearat, Magnesiumstearat und Zinkstearat verwendet.Metal soaps are also suitable as lubricants. Calcium stearate, magnesium stearate and zinc stearate are preferably used.

Fettsäureester als Gleitmittel sind bevorzugt ausgewählt aus Fettsäureestern kurzkettiger einwertiger Alkohole, Fettsäureestern langkettiger einwertiger Aklohole, Glycol-Fettsäureestern, Glycerin-Fettsäureestern, Montansäure-Esterwachsen, festen oder flüssigen hochmolekularen Mischestern oder aus Estern mehrbasischer Carbonsäuren.Fatty acid esters as lubricants are preferably selected from fatty acid esters of short-chain monohydric alcohols, fatty acid esters of long-chain monohydric alcohols, glycol fatty acid esters, glycerol fatty acid esters, montanic acid ester waxes, solid or liquid high molecular weight mixed esters or from esters of polybasic carboxylic acids.

Typische Vertreter dieser Verdindungsklasse sind n-Butylstearat, Stearylstearat, Propylenglycolmonooleat, Glycerinmonooleat, Glycerinmonostearat, Distearyladipat, Distearylphthalat, Polykondensate aus Pentaerythrit+Adipinsäure+Ölsäure oder Stearinsäure, und Ester der Montansäuren im Gemisch mit freien Montansäuren und Calciummontanat.Typical representatives of this class of compounds are n-butyl stearate, stearyl stearate, propylene glycol monooleate, glycerol monooleate, glycerol monostearate, distearyl adipate, distearyl phthalate, polycondensates of pentaerythritol + adipic acid + oleic acid or stearic acid, and esters of montanic acids mixed with free montanic acids.

Ein festes Säureamid als Gleitmittel ist vorteilhaft ein Fettsäureamid, ausgewählt aus Ölsäureamid, Erucasäureamid oder Stearinsäureamid, oder N,N'-Bis-stearoyl-ethylendiamin.A solid acid amide as a lubricant is advantageously a fatty acid amide selected from oleic acid amide, erucic acid amide or stearic acid amide, or N, N'-bis-stearoyl-ethylenediamine.

Bei dem Verpackungsmaterial nach der vorliegenden Erfindung handelt es sich um keinen Metall/Papier-Verbund, sondern die Papiergrundlage wurde durch Aufbringen einer dünnen Metallschicht metallisiert. Das Aufbringen dieser Schicht kann nach an sich bekannten Methoden erfolgen. Allgemein üblich sind Vakuumabscheidung, Kathodenaufsprühung, Plasmaaufsprühung, Dampfphasenplattierung, stromfreie Plattierung, Elektroplattierung, Aufdampfen oder Aufziehen. Der metallische Überzug besteht bevorzugt aus Gold, Silber, Kupfer, Aluminium oder Gemischen oder Legierungen von zweien oder mehreren dieser Metalle. Besonders bevorzugtes Überzugsmetall ist Aluminium.The packaging material according to the present invention is not a metal / paper composite, but the paper base was metallized by applying a thin metal layer. This layer can be applied by methods known per se. Vacuum deposition, cathode spraying, plasma spraying, vapor phase plating, current-free plating, electroplating, vapor deposition or mounting are common. The metallic coating preferably consists of gold, silver, copper, aluminum or mixtures or alloys of two or more of these metals. Aluminum is a particularly preferred coating metal.

An das Papier als Grundlage für das erfindungsgemäße Verpackungsmaterial werden keine besonderen Anforderungen, insbesondere hinsichtlich der Dicke oder Qualität, gestellt. Der Begriff "Papier" umfaßt auch Karton oder Pappe, das je nach beabsichtigter Verwendung eingesetzt werden kann. Bei Papier oder Karton kann es vorteilhaft sein, vor Aufbringung der Metallschicht das Papier zusätzlich mit einem üblichen Grundierlack in einer Menge von 0,5 bis 2,5 g/m² zu behandeln.No particular requirements are placed on the paper as the basis for the packaging material according to the invention, particularly with regard to the thickness or quality. The term "paper" also includes cardboard which can be used depending on the intended use. In the case of paper or cardboard, it may be advantageous to additionally treat the paper with a customary primer in an amount of 0.5 to 2.5 g / m² before applying the metal layer.

Das Gleitmittel wird nach üblichen Verfahren in einer Menge von 0,5 bis 100 mg/m² auf die metallisierte Papiergrundlage aufgebracht. Im allgemeinen reichen geringere Mengen bereits aus. Als vorteilhaft hat sich ein Auftrag von 15 bis 25 mg/m² erwiesen. Das Gleitmittel kann dabei aufgesprüht oder aufgestrichen werden. Bevorzugt bringt man das Gleitmittel als wässrige Dispersion in einem Aufstreichvorgang auf und läßt anschließend trocknen.The lubricant is applied to the metallized paper base in an amount of 0.5 to 100 mg / m 2 using customary methods upset. In general, smaller amounts are sufficient. An application of 15 to 25 mg / m² has proven to be advantageous. The lubricant can be sprayed on or spread on. The lubricant is preferably applied as an aqueous dispersion in a spreading operation and then allowed to dry.

Nachstehend ist der Aufbau eines erfindungsgemäßen Zigaretteninnenwicklers einem Zigarettenwickler nach dem Stand der Technik gegenübergestellt: Aufbau des Zigaretteninnenwicklers Erfinderische Lösung Stand der Technik Gestrichenes Papier 30 - 80 g/m² 30 - 80 g/m² Grundierlack 1,0 - 2,5 g/m² 1,0 - 2,5 g/m² Aluminium-Metallisierung 25 - 55 nm 25 - 55 nm Schutzlack --- 0,5-2,0 g/m² Gleitmittel ca. 20 mg/m² --- The structure of a cigarette winder according to the invention is compared below with a cigarette winder according to the prior art: Structure of the inner cigarette winder Innovative solution State of the art Coated paper 30 - 80 g / m² 30 - 80 g / m² Primer 1.0-2.5 g / m² 1.0-2.5 g / m² Aluminum metallization 25-55 nm 25-55 nm Protective varnish --- 0.5-2.0 g / m² lubricant approx. 20 mg / m² ---

Es hat sich darüber hinaus gezeigt, daß der Gleitmittelfilm nicht nur die gleichen Anforderungen erfüllt wie eine Schutzlackierung, sondern in vorteilhafter Weise noch eine bessere Planlage des Materials in der Maschine bewirkt.It has also been shown that the lubricant film not only meets the same requirements as a protective coating, but also advantageously results in a better flatness of the material in the machine.

Hinzukommt, daß durch den Fortfall organischer Lösungsmittel und wegen der nur sehr geringen Menge Gleitmittel eine umweltfreundlichere Entsorgung, bzw. ein Recycling möglich ist.In addition, the elimination of organic solvents and because of the very small amount of lubricant means that environmentally friendly disposal or recycling is possible.

Der Ersatz des Schutzlacks durch ein Gleitmittel ist nicht nur in vorteilhafter Weise für metallisierte Papiere zur Verwendung als Zigaretteninnenwickler möglich, sondern ebenso für alle anderen Verwendungen von metallisierten Papieren, wie beispielsweise als Schmuck- oder Geschenkpapier.Replacing the protective lacquer with a lubricant is not only possible in an advantageous manner for metallized paper for use as an internal cigarette winder, but also for all other uses of metallized paper, such as, for example, as decorative or gift paper.

Beispiel:Example:

Zur Herstellung eines metallisierten Verpackungsmaterials, das insbesondere zur Verwendung als Zigaretteninneneinschlag geeignet ist, geht man wie folgt vor:To produce a metallized packaging material that is particularly suitable for use as a cigarette wrapper, proceed as follows:

Zunächst wird ein üblicher Grundierlack in einer Menge von 0,5 bis 2,5 g/m² auf das Papier aufgebracht, auf welches eine Aluminiumschicht in einer Menge von 0,02 bis 0,2 g/m² aufgedampft wird. Durch Aufstreichen bringt man auf die Aluminiumschicht ein in wässriger Lösung dispergiertes Polyethylen-Wachs als Gleitmittel auf, so daß nach dem Trocknen die Menge des aufgetragenen Gleitmittels 0,5 bis 50 mg/m² beträgt.First, a conventional primer is applied in an amount of 0.5 to 2.5 g / m² on the paper, on which an aluminum layer is evaporated in an amount of 0.02 to 0.2 g / m². By brushing, a polyethylene wax dispersed in aqueous solution is applied as a lubricant so that after drying the amount of lubricant applied is 0.5 to 50 mg / m².

Der mit diesem erfindungsgemäßen Aufbau hergestellter Zigaretteninnenwickler ist sehr gut maschinengängig, hat eine hohe Abriebfestigkeit und kann in einfacher und kostengünstiger Weise mit dem Gleitmittel versehen werden.The cigarette inner winder produced with this construction according to the invention is very easy to machine, has a high abrasion resistance and can be provided with the lubricant in a simple and inexpensive manner.

Claims (15)

Metallisiertes Verpackungsmaterial aus Papier, insbesondere zur Verpackung von Zigaretten, mit einer hierauf in einer Menge von 0,02 bis 0,25 g/m² aufgebrachten Metallschicht, dadurch gekennzeichnet, daß auf die Metallschicht ein Gleitmittel in einer Menge von 0,5 bis 100 mg/m² aufgebracht ist.Metallized paper packaging material, in particular for packaging cigarettes, with a metal layer applied thereon in an amount of 0.02 to 0.25 g / m², characterized in that a lubricant in an amount of 0.5 to 100 mg is applied to the metal layer / m² is applied. Verpackungsmaterial gemäß Anspruch 1, dadurch gekennzeichnet, daß das Gleitmittel ausgewählt ist aus Paraffinen, Polyethylen-Wachsen, mit Maleinsäureanhydrid modifizierten Polypropylen-Wachsen, Ester- und Säurewachsen, Amidwachsen, Polytetrafluorethylen-Wachsen, Polytetrafluorethylen/Polyethylen-Wachsen, Ethyl-Vinylacetat-Copolymer-Wachsen, Naturwachsen, Fettalkoholen, Fettsäuren, Metallseifen, Fettsäureestern, festen Säureamiden, Siloxanen, sulfatierten Ölen oder miteinander verträglichen Mischungen davon.Packaging material according to claim 1, characterized in that the lubricant is selected from paraffins, polyethylene waxes, polypropylene waxes modified with maleic anhydride, ester and acid waxes, amide waxes, polytetrafluoroethylene waxes, polytetrafluoroethylene / polyethylene waxes, ethyl-vinyl acetate copolymer. Waxes, natural waxes, fatty alcohols, fatty acids, metal soaps, fatty acid esters, solid acid amides, siloxanes, sulfated oils or mixtures thereof which are compatible with one another. Verpackungsmaterial gemäß Anspruch 2, dadurch gekennzeichnet, daß das Gleitmittel ein Paraffin ist, ausgewählt aus vorwiegend verzweigtkettigen flüssigen Kohlenwasserstoffen oder aus vorwiegend geradkettigen festen Kohlenwasserstoffen.Packaging material according to claim 2, characterized in that the lubricant is a paraffin selected from predominantly branched-chain liquid hydrocarbons or from predominantly straight-chain solid hydrocarbons. Verpackungsmaterial gemäß Anspruch 2, dadurch gekennzeichnet, daß das Gleitmittel ein Polyethylen-Wachs, ausgewählt aus Polyethylen mit einer mittleren Molmasse von 2000 bis 12000 oder aus luftoxidiertem niedermolekularen Polyethylen, oder Carnaubawachs ist.Packaging material according to claim 2, characterized in that the lubricant is a polyethylene wax selected from polyethylene with an average molecular weight of 2000 to 12000 or from air-oxidized low molecular weight polyethylene, or carnauba wax. Verpackungsmaterial gemäß Anspruch 2, dadurch gekennzeichnet, daß das Gleitmittel eine Fettsäure ist, ausgewählt aus Stearinsäure, 12-Hydroxystearinsäure und Montansäuren.Packaging material according to claim 2, characterized in that the lubricant is a fatty acid selected from stearic acid, 12-hydroxystearic acid and montanic acids. Verpackungsmaterial gemäß Anspruch 2, dadurch gekennzeichnet, daß das Gleitmittel eine Metallseife ist, ausgewählt aus Calciumstearat, Magnesiumstearat und Zinkstearat.Packaging material according to claim 2, characterized in that the lubricant is a metal soap selected from calcium stearate, magnesium stearate and zinc stearate. Verpackungsmaterial gemäß Anspruch 2, dadurch gekennzeichnet, daß das Gleitmittel ein Fettsäureester ist, ausgewählt aus Fettsäureestern kurzkettiger einwertiger Alkohole, Fettsäureestern langkettiger einwertiger Aklohole, Glycol-Fettsäureestern, Glycerin-Fettsäureestern, Montansäure-Esterwachsen, festen oder flüssigen hochmolekularen Mischestern oder aus Estern mehrbasischer Carbonsäuren.Packaging material according to claim 2, characterized in that the lubricant is a fatty acid ester selected from fatty acid esters of short-chain monohydric alcohols, fatty acid esters of long-chain monohydric alcohols, glycol fatty acid esters, glycerol fatty acid esters, montanic acid ester waxes, solid or liquid high molecular weight mixed esters or from esters of polybasic carboxylic acids. Verpackungsmaterial gemäß Anspruch 2, dadurch gekennzeichnet, daß das Gleitmittel ein festes Säureamid ist, ausgewählt aus Fettsäureamiden oder N,N'-Bis-stearoyl-ethylendiamin.Packaging material according to claim 2, characterized in that the lubricant is a solid acid amide selected from fatty acid amides or N, N'-bis-stearoyl-ethylenediamine. Verpackungsmaterial gemäß Anspruch 1, dadurch gekennzeichnet, daß das Gleitmittel in einer Menge von 15 bis 25 mg/m² aufgebracht ist.Packaging material according to claim 1, characterized in that the lubricant is applied in an amount of 15 to 25 mg / m². Verpackungsmaterial gemäß Anspruch 1, dadurch gekennzeichnet, daß die Metallschicht aus Gold, Silber, Kupfer, Aluminium oder Gemischen oder Legierungen von zweien oder mehreren dieser Metalle gebildet ist.Packaging material according to claim 1, characterized in that the metal layer is formed from gold, silver, copper, aluminum or mixtures or alloys of two or more of these metals. Verpackungsmaterial gemäß Anspruch 1, dadurch gekennzeichnet, daß zwischen dem Papier und der Metallschicht zusätzlich ein Grundierlack in einer Menge von 0,5 bis 2,5 g/m² aufgebracht ist.Packaging material according to claim 1, characterized in that a primer is additionally applied in an amount of 0.5 to 2.5 g / m² between the paper and the metal layer. Verfahren zur Herstellung eines metallisierten Verpackungsmaterials gemäß Anpruch 1 aus Papier mit einer hierauf in einer Menge von 0,02 bis 0,25 g/m² aufgebrachten Metallschicht, dadurch gekennzeichnet, daß man auf die Metallschicht ein Gleitmittel in einer Menge von 0,5 bis 100 mg/m² aufbringt.Process for producing a metallized packaging material according to claim 1 from paper with a metal layer applied thereon in an amount of 0.02 to 0.25 g / m², characterized in that a lubricant in an amount of 0.5 to 100 is applied to the metal layer mg / m². Verfahren gemäß Anspruch 12, dadurch gekennzeichnet, daß man das Gleitmittel als wässrige Dispersion in einem Aufstreichvorgang aufbringt oder aufsprüht.A method according to claim 12, characterized in that the lubricant is applied or sprayed on as an aqueous dispersion in a spreading operation. Verfahren nach Anspruch 12, dadurch gekennzeichnet, daß man auf Papier zunächst einen Grundierlack in einer Menge von 0,5 bis 2,5 g/m² aufbringt, auf das grundierte Papier eine Aluminiumschicht in einer Menge von 0,02 bis 0,25 g/m² aufdampft und auf die Aluminiumschicht ein in wässriger Lösung dispergiertes Polyethylen-Wachs als Gleitmittel aufstreicht, so daß nach dem Trocknen die Menge des aufgetragenen Gleitmittels 0,5 bis 100 mg/m² beträgt.A method according to claim 12, characterized in that a primer is first applied to paper in an amount of 0.5 to 2.5 g / m², and an aluminum layer in an amount of 0.02 to 0.25 g / to the primed paper. Evaporates m² and spreads a polyethylene wax dispersed in aqueous solution as a lubricant on the aluminum layer, so that after drying the amount of lubricant applied is 0.5 to 100 mg / m². Verwendung eines metallisierten Verpackungsmaterials gemäß Anspruch 1 als Zigaretteninneneinschlag.Use of a metallized packaging material according to claim 1 as a cigarette wrapper.
EP95105292A 1994-04-07 1995-04-07 Metallized wrapping material Expired - Lifetime EP0676503B1 (en)

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DE4412019A DE4412019C2 (en) 1994-04-07 1994-04-07 Metallized paper cigarette wrapper and process for its manufacture
DE4412019 1994-04-07

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EP0676503A3 EP0676503A3 (en) 1996-07-17
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Cited By (3)

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DE10134819C1 (en) * 2001-07-17 2002-11-28 Ovd Kinegram Ag Zug Making authenticating packaging sheet including substrate-, thermoplastic-, reflective- and protective layers, finely-impresses the laminate
WO2003027775A1 (en) * 2001-09-21 2003-04-03 Alcan Deutschland Gmbh Method for producing a foil material, provided with an embossed hologram, as well as a foil material
US11503855B2 (en) 2016-04-27 2022-11-22 Japan Tobacco Inc. Flavor inhaler

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NL1005218C1 (en) * 1996-11-22 1998-05-27 Leer Koninklijke Emballage Method of manufacturing a metallized paper material.
NL1004595C2 (en) * 1996-11-22 1998-05-27 Leer Koninklijke Emballage Metallised paper manufacture
CN110004772A (en) * 2019-04-15 2019-07-12 滁州卷烟材料厂 A kind of cigarette package anti-fake aluminium-foil paper

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DE10134819C1 (en) * 2001-07-17 2002-11-28 Ovd Kinegram Ag Zug Making authenticating packaging sheet including substrate-, thermoplastic-, reflective- and protective layers, finely-impresses the laminate
WO2003027775A1 (en) * 2001-09-21 2003-04-03 Alcan Deutschland Gmbh Method for producing a foil material, provided with an embossed hologram, as well as a foil material
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EP3552505B1 (en) * 2016-04-27 2023-01-04 Japan Tobacco Inc. Cup member

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DE4412019C2 (en) 1996-08-01
EP0676503A3 (en) 1996-07-17
DE4412019A1 (en) 1995-10-12
DE59503224D1 (en) 1998-09-24
ATE169974T1 (en) 1998-09-15
EP0676503B1 (en) 1998-08-19
DK0676503T3 (en) 1998-11-02

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