EP2138056B1 - Vliesstoff zur Verwendung als feuchtedurchlässiges, mikroporöses Genussmittelverpackungsmaterial - Google Patents

Vliesstoff zur Verwendung als feuchtedurchlässiges, mikroporöses Genussmittelverpackungsmaterial Download PDF

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Publication number
EP2138056B1
EP2138056B1 EP09163337.0A EP09163337A EP2138056B1 EP 2138056 B1 EP2138056 B1 EP 2138056B1 EP 09163337 A EP09163337 A EP 09163337A EP 2138056 B1 EP2138056 B1 EP 2138056B1
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EP
European Patent Office
Prior art keywords
permeable
moisture
microporous
fibers
woven material
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Not-in-force
Application number
EP09163337.0A
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English (en)
French (fr)
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EP2138056A2 (de
EP2138056A3 (de
Inventor
Hagen Hohmuth
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Tenowo GmbH
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Tenowo GmbH
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Publication of EP2138056A3 publication Critical patent/EP2138056A3/de
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Publication of EP2138056B1 publication Critical patent/EP2138056B1/de
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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
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43835—Mixed fibres, e.g. at least two chemically different fibres or fibre blends
    • 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
    • B65D85/70—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
    • B65D85/804—Disposable containers or packages with contents which are mixed, infused or dissolved in situ, i.e. without having been previously removed from the package
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/425—Cellulose series
    • D04H1/4258—Regenerated cellulose series
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4282—Addition polymers
    • D04H1/4291—Olefin series
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/48—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/48—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation
    • D04H1/49—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation entanglement by fluid jet in combination with another consolidation means
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/541—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres
    • D04H1/5418—Mixed fibres, e.g. at least two chemically different fibres or fibre blends
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/542—Adhesive fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/542—Adhesive fibres
    • D04H1/544—Olefin series
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/587—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives characterised by the bonding agents used
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/64—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
    • D04H1/68—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions the bonding agent being applied in the form of foam

Definitions

  • the invention relates to a nonwoven fabric for use as a moisture-permeable, microporous semi-luxury packaging material, according to the preamble of patent claim 1.
  • nonwovens used to package the portion nus are often bonded nonwovens made of 100% viscose fibers (as longitudinally oriented batt). These are made with a thermoplastic Binders, which is applied as an aqueous, foamed polymer dispersion bound.
  • Such nonwovens may contain a binder solids content of 20-70%, and sometimes exhibit highly abrasive behavior that can cause problems in processing the material. It is largely determined by the amount of binder used.
  • nonwovens for the packaging of oral tobacco must have a good heat sealability.
  • a very good sealable fleece is often so sticky that it collects dirt particles during manufacture and thus becomes unsalable.
  • a bonding or sticking of the nonwoven fabric to the role occur, so that it can not be separated.
  • An exemplary machine for making individual Snuspierechen is in the WO 2008/062301 A1 shown.
  • the tobacco mixture is portioned via a rotary plate and transported to the packaging apparatus.
  • the snus portions are blown by means of a nozzle in an endless web of packaging material.
  • the packaging material is unwound from a roll and positioned around a mandrel.
  • the edges of the fabric are sealed longitudinally by means of ultrasonic welding elements. Below the mandrel, another ultrasonic welding element is placed to divide the endless wrapping web into small snus packets after filling with individual tobacco portions.
  • the object of the invention is achieved by a nonwoven fabric for use as a moisture-permeable, microporous semi-luxury packaging material according to feature combination according to claim 1.
  • the nonwoven fabric for use as a moisture-permeable, microporous semi-luxury packaging material from a base fleece of viscose fibers, which is pre-consolidated by means of water jet and fusible fibers from a thermoplastic polymer material.
  • the nonwoven to be produced Due to preconsolidation e.g. by means of water jet, the nonwoven to be produced has on the one hand the required porosity, for use as packaging material for oral tobacco and on the other hand it is more resistant to abrasion and cheaper material costs than previously used packaging materials.
  • the required heat-sealing capability of the nonwoven fabric can be obtained on the one hand from the admixture of polymer fibers in the base nonwoven.
  • the polymer fibers are part of the pre-consolidated by water jet base material.
  • the polymer fibers are polypropylene fibers.
  • a fiber amount of polypropylene fibers and viscose fibers is present, which is processed by the method of hydroentanglement to form a nonwoven.
  • the produced nonwoven fabric has a basis weight of 25 g / m 2 and consists of a fiber material which consists of 70% viscose fibers and 30% polypropylene fibers.
  • the required heat sealability can be obtained by using a binder which is not or only partially crosslinked and is obtained from a polymer dispersion applied to the base web.
  • a particular advantage of the described nonwoven fabric is that it can be dyed.
  • This may preferably be black or black brown, but also other colors.
  • the colors black or brown are of particular advantage, since the used oral tobacco in this color segment can rub off on the nonwoven fabric. With such a dyed fleece these discolorations are no longer visible.
  • conspicuously colorfully colored oral tobacco packaging, such as red or green, can be used for marketing reasons in order to stand out clearly from competitive products.
  • the nonwoven fabric according to the invention can be used in the production of snus packaging with the already known packaging machines.
  • 25 g / m 2 fiber material which consists of 70% viscose fibers and 30% polypropylene fibers, processed by hydroentanglement to form a nonwoven and then dried.
  • the heat-sealability of the material is obtained from the polypropylene fibers, which provide, for example, when processing with an ultrasonic welder for sealing the snus bag.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Nonwoven Fabrics (AREA)

Description

  • Die Erfindung betrifft einen Vliesstoff zur Verwendung als feuchtedurchlässiges, mikroporöses Genussmittelverpackungsmaterial, gemäß Oberbegriff des Patentanspruchs 1.
  • Neben der allgemein bekannten Art des Genusses von Tabak in Form von Zigaretten, Pfeifen, Schnupftabak oder Kautabak, existiert eine weitere Form des oralen Tabakgenusses, nämlich Snus. Diese vor allem in Skandinavien verbreitete Form des Oraltabaks, ist ein mit Salzen versetzter Tabak, der unter die Oberlippe gesteckt wird.
  • Es wird zwischen losem Snus und portionsverpacktem Snus unterschieden, wobei der Lössnus, als feuchtes Pulver in Dosen verpackt, vor dem Gebrauch mit den Fingern oder anderen Hilfsmitteln portioniert werden muss. Der Portionsnus hingegen ist bereits in kleinen Beuteln (ähnlich kleinen Teebeuteln) abgepackt und zum direkten Gebrauch geeignet, d. h. der mit dem Tabak befüllte Beutel wird vollständig unter die Oberlippe gesteckt. In der CA2133299 A1 wird ein Vliesstoff offenbart, dass ein mittels Wasserstrahlung vor-verfestigtes Grundvlies aufweist, und aus einem Fasermaterial besteht welches Viskosefasern und Polypropylenfasern aufweist. In der WO 2008/056135 A2 werden die Produktion, Zusammensetzung und die Verpackung eines Oraltabaks offenbart. Es wird aufgeführt, dass der abgewogene Tabak beispielsweise in einer Celluloseacetat-Verpackung beutelförmig versiegelt werden kann.
  • Bei zur Abpackung des Portionsnus verwendeten Vliesstoffen handelt es sich außerdem oftmals um gebundene Vliesstoffe aus 100 % Viskosefasern (als längsorientierter Faserflor). Diese werden mit einem thermoplastischen Bindemittel, welches als wässrige, verschäumte Polymerdispersion appliziert wird, gebunden.
  • Derartige Vliesstoffe können einen Bindemittelfeststoffanteil von 20 - 70 % enthalten und zeigen mitunter stark abrasives Verhalten, das bei der Verarbeitung des Materials zu Problemen führen kann. Es wird maßgeblich durch die Menge des verwendeten Bindemittels bestimmt.
  • Bisher bekannte Vliesstoffe zur Verwendung als Snusverpackungsmaterial können mit dem derzeitigen Stand der Technik nur in weiß hergestellt werden. In diesem Zusammenhang verstärkt dies das Sichtbarwerden leichter Abfärbungen des Oraltabaks auf das Vliesmaterial.
  • Vliesstoffe zur Verpackung von Oraltabak müssen vor allem über eine gute Heißsiegelfähigkeit verfügen. Ein sehr gut siegelfähiges Vlies ist häufig so klebrig, dass es bei der Herstellung Schmutzpartikel sammelt und somit unverkäuflich wird. Außerdem kann ein Zusammen- bzw. Ankleben des Vliesstoffes an der Rolle auftreten, sodass es nicht mehr getrennt werden kann.
  • Eine beispielhafte Maschine zur Herstellung einzelner Snuspäckchen wird in der WO 2008/062301 A1 dargestellt. Zunächst wird das Tabakgemisch über einen Rotationsteller portioniert und zum Verpackungsapparat transportiert. Dort werden die Snusportionen mittels einer Düse in eine Endlosbahn von Verpackungsmaterial gepustet. Das Verpackungsmaterial wird dabei von einer Rolle abgewickelt und um einen Dorn positioniert. Die Kanten des Gewebes werden in Längsrichtung mittel Ultraschallschweißelementen versiegelt. Unterhalb des Dorns ist ein weiteres Ultraschallschweißelement platziert, um die Endlosverpackungsbahn nach dem Befüllen mit einzelnen Tabakportionen, in kleine Snuspäckchen zu unterteilen.
  • Um das soeben dargelegte Heißversiegelverfahren weiterhin bei der Abpackung von Snusportionen anwenden zu können und gleichzeitig auf Vliesstoffe mit hohen Bindemittelanteilen und den damit einhergehenden Verfahrensproblemen auf Grund des abrasiven Verhaltens und der starken Klebrigkeit der bekannten Vliesstoffe verzichten zu können, ist es die Aufgabe der vorliegenden Erfindung einen weiterentwickelten Vliesstoff anzugeben, der über eine gute Heißsiegelfähigkeit verfügt ohne mit den soeben genannten nachteiligen Materialeigenschaften behaftet zu sein. Zudem soll es mit dem anzugebenden Vliesstoff ermöglicht werden, Verpackungsmaterial bereitzustellen, das farbig ausgeführt ist oder eingefärbt werden kann.
  • Die Lösung der Aufgabe der Erfindung erfolgt durch einen Vliesstoff zur Verwendung als feuchtedurchlässiges, mikroporöses Genussmittelverpackungsmaterial gemäß Merkmalskombination nach Patentanspruch 1. Erfindungsgemäß besteht der Vliesstoff zur Verwendung als feuchtedurchlässiges, mikroporöses Genussmittelverpackungsmaterial aus einem Grundvlies aus Viskosefasern, das mittels Wasserstrahl vorverfestigt ist und schmelzbaren Fasern aus einem thermoplastischen Polymermaterial aufweist.
  • Aufgrund der Vorverfestigung z.B. mittels Wasserstrahl, verfügt das herzustellende Vlies zum einen über die benötigte Porosität, zur Verwendung als Verpackungsmaterial für Oraltabak und zum anderen ist es abriebfester und günstigern in den Materialkosten als bisher verwendete Verpackungsmaterialien.
  • Die benötigte Heißsiegelfähigkeit des Vliesstoffes kann einerseits aus der Beimischung von Polymerfasern in das Grundvlies gewonnen werden. In diesem Fall sind die Polymerfasern Bestandteil des mittels Wasserstrahl vorverfestigten Grundmaterials.
  • Zweckmäßigerweise handelt es sich bei den Polymerfasern um Polypropylenfasern. Erfindungsgemäß liegt ein Fasergemenge aus Polypropylenfasern und Viskosefasern vor, welches mittels der Methode der Wasserstrahlverfestigung zu einem Vlies verarbeitet wird.
  • Der hergestellte Vliesstoff weist ein Flächengewicht von 25 g/m2 auf und besteht aus einem Fasermaterial, welches aus 70 % Viskosefasern und 30 % Polypropylenfasern besteht.
  • Andererseits kann die benötigte Heißsiegelfähigkeit durch Einsatz eines Bindemittels gewonnen werden, das nicht oder lediglich teilvernetzt ist und aus einer auf des Grundvlies aufgebrachter Polymerdispersion gewonnen wird.
  • Ein besonderer Vorteil des beschriebenen Vliesstoffs, liegt darin, dass dieser eingefärbt werden kann. Bevorzugt kann dies in den Farben schwarz oder braun, aber auch anderen Farben erfolgen. Die Farben schwarz oder braun sind von besonderem Vorteil, da der verwendete Oraltabak in diesem Farbsegment auf den Vliesstoff abfärben kann. Bei einem derartig gefärbten Vlies sind diese Abfärbungen nicht mehr sichtbar. Zudem können auffällig bunt eingefärbte Oraltabakverpackungen, wie rot oder grün, aus vermarktungstechnischen Gründen verwendet werden, um sich von Wettbewerbsprodukten eindeutig abheben zu können.
  • Der erfindungsgemäße Vliesstoff kann bei der Produktion von Snusverpackungen mit den bereits bekannten Verpackungsautomaten verwendet werden. Erfindungsgemäß wird 25 g/m2 Fasermaterial, welches aus 70 % Viskosefasern und 30 % Polypropylenfasern besteht, durch Wasserstrahlverfestigung zu einem Vlies verarbeitet und anschließend getrocknet. Es muss kein weiterer Auftrag von Bindemitteln erfolgen. Die Heißsiegelfähigkeit des Materials wird aus den Polypropylenfasern gewonnen, die beispielsweise bei der Bearbeitung mit einem Ultraschallschweißgerät für eine Versiegelung des Snusbeutels sorgen.
  • Hierbei kommen selbstverständlich lebensmittelverträgliche Farbstoffe zur Anwendung.

Claims (1)

  1. Vliesstoff zur Verwendung als feuchtedurchlässiges, mikroporöses Genussmittelverpackungsmaterial,
    dadurch gekennzeichnet, dass
    ein mittels Wasserstrahl und ohne weiterer Auftrag von Bindemitteln vorverfestigtes Grundvlies aus Viskosefasern einen Anteil an schmelzbaren Fasern aus einem thermoplastischen Polymermaterial aufweist, wobei der Vliesstoff ein Flächengewicht von 25 g/m2 aufweist und aus einem Fasermaterial besteht, welches 70% Viskosefasern und 30% Polypropylenfasern aufweist.
EP09163337.0A 2008-06-26 2009-06-22 Vliesstoff zur Verwendung als feuchtedurchlässiges, mikroporöses Genussmittelverpackungsmaterial Not-in-force EP2138056B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008030391 2008-06-26
DE102008038556A DE102008038556A1 (de) 2008-06-26 2008-08-20 Vliesstoff zur Verwendung als feuchtedurchlässiges, mikroporöses Genussmittelverpackungsmaterial

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EP2138056A2 EP2138056A2 (de) 2009-12-30
EP2138056A3 EP2138056A3 (de) 2012-08-01
EP2138056B1 true EP2138056B1 (de) 2018-08-08

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