EP2570364B1 - Bag or container for storage and preparation of food and use of the said bag - Google Patents

Bag or container for storage and preparation of food and use of the said bag Download PDF

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Publication number
EP2570364B1
EP2570364B1 EP12184293.4A EP12184293A EP2570364B1 EP 2570364 B1 EP2570364 B1 EP 2570364B1 EP 12184293 A EP12184293 A EP 12184293A EP 2570364 B1 EP2570364 B1 EP 2570364B1
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EP
European Patent Office
Prior art keywords
bag
inner layer
outer layer
bag according
composite material
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.)
Not-in-force
Application number
EP12184293.4A
Other languages
German (de)
French (fr)
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EP2570364A1 (en
Inventor
Hans-Jürgen ARNING
Sven Larisch
Björn Höser
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.)
Cofresco Frischhalteprodukte GmbH and Co KG
Original Assignee
Cofresco Frischhalteprodukte GmbH and Co KG
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Publication date
Application filed by Cofresco Frischhalteprodukte GmbH and Co KG filed Critical Cofresco Frischhalteprodukte GmbH and Co KG
Priority to DK13185208T priority Critical patent/DK2676898T3/en
Priority to EP13185208.9A priority patent/EP2676898B1/en
Publication of EP2570364A1 publication Critical patent/EP2570364A1/en
Application granted granted Critical
Publication of EP2570364B1 publication Critical patent/EP2570364B1/en
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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
    • 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
    • B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
    • B65D31/02—Bags or like containers made of paper and having structural provision for thickness of contents with laminated walls
    • 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
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within the package
    • B65D81/3407—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within the package specially adapted to be heated over a heat source, e.g. a hob, campfire

Definitions

  • the present invention relates to a bag or a container for the storage and preparation of food, with a bag body formed from at least two layers.
  • bags made of plastic film in particular made of heat-set PET or a special polyamide, which are used as Brat zucchini use and are smooth and not sticky on its inside.
  • a separate closure such as a clip or clamp.
  • Conventional biaxially oriented and heat-set PET films can not be sealed by heated bars, but an additional sealing layer must be provided for this purpose. Therefore, such bags are usually produced by the separation welding process, which is why no production of the bag on a roll is possible, since the webs must always be severed.
  • Made of polyamide bags are also relatively stiff and are softer by water absorption and are therefore less suitable for freezing, since they can adhere to the frozen food.
  • the bags When used as a roasting bag, the bags must then be perforated by the user, for example by cutting with a pair of scissors to prevent accidental bursting due to the forming internal pressure during heating.
  • the US 4 571 337 discloses a pouch having an outer layer of paper and an inner layer of a polyester film. A coating is applied to the inner film which can be activated by heat and pressure to seal two inner layers together.
  • the GB 1 508 492 discloses a pouch with a laminate of an outer layer of paper and an inner layer of a film of polyethylene. On opposite side edges, the inner layer is heat sealed. At a floor area, joints are coated with an adhesive to produce the laminate with a stable floor.
  • the layers of the bag body are formed of a composite material with an inner layer of plastic suitable for food contact and an outer layer of paper and / or metal foil.
  • the inside is acid and corrosion resistant, in contrast to pure aluminum foil.
  • the composite material is moldable by the outer layer of paper and / or metal foil, i. the user can deform the material so that it remains largely in the deformed position. This can be used to close the bag opening by screwing, folding or flanging tightly and to use the bag as a frying bag.
  • the composite material can be processed in a simple manner, since it has surprisingly been found that the composite material is heat-sealable. Accordingly, on conventional bag machines, sealing edge bags with as many seams as desired can be produced on a roll or as a single bag.
  • the inner layer is glued to the outer layer. As a result, detachment of the inner layer from the outer layer is reliably avoided.
  • the composite material has a heat resistance up to 200 ° C, in particular up to 220 ° C, on. This allows the bag to be used to cook food in the oven.
  • the layers of the bag are at least partially welded together at the edges at seams and on one side of a bag opening is formed. This allows the bag to be made from two superimposed layers.
  • the outer layer used is preferably aluminum foil, which is easily foldable and has good formability.
  • the thickness of the outer layer can be between 2 ⁇ m to 20 ⁇ m, in particular 5 to 10 ⁇ m.
  • the inner layer of the composite material consists of plastic film made of PET.
  • the inner layer preferably has a thickness of 2 ⁇ m to 15 ⁇ m, in particular 3 to 7 ⁇ m. In this case, the inner layer may be thinner than the outer layer.
  • the seams of the bag preferably have a seam strength of more than 4 N / cm. This produces a tear-resistant bag that can be easily used in the home.
  • the composite material is preferably foldable.
  • Foldable in this context means that the ductility is such that after folding of the composite material, the material substantially remains in a folded position and is not elastically moved back to a starting position.
  • the inner layer is coated on the side facing inwards with an anti-adhesive agent, in particular silicone.
  • an anti-adhesive agent in particular silicone.
  • a paper is provided as the outer layer.
  • the paper may have a basis weight between 10 to 50 g / m 2 .
  • the outside can be printed and graphically designed in the desired way.
  • the bag is formed as a closed package in which the bag opening is closed, optionally by a seam or a separate closure element, such as an adhesive label.
  • a material to be heated in particular a food, is preferably arranged. This allows the bag to be placed directly on a hotplate to heat the material.
  • a use of a bag as a cooking vessel for storage on a stove top, in particular an induction cooker provided.
  • the advantage can be used that the bag is used as a cooking vessel and has only a small mass. In comparison with commercial cooking pots, it takes a relatively long time until the bottom has warmed up and then the filled food is heated. By heating the material contained in the bag, the warm-up process is significantly shortened and also the bag can be used as an industrially fillable packaging. It is of course also possible that a bag is filled by the user himself for the subsequent preparation of food.
  • FIG. 1 a bag 1 or a container is shown, which is formed from a bag body of two superposed layers, which at opposite longitudinal sides by a strip-shaped sealing layer 5 together are connected. At a front edge a bottom fold 4 is provided, which connects the two layers together. At the opposite side of the bottom fold 4 a bag opening 3 is formed for filling the bag 1.
  • bag 1 ' is provided instead of the bottom fold 4, a further sealing edge layer 4' in the bottom region, so that the two layers on three sides via strip-shaped edge sealing layers 4 'and 5 are fixed to each other.
  • FIG. 3 a plurality of mutually adjoining bags 1 "are shown, which are each formed of a bag body 2, which connects via sealing edge layers 5 at the longitudinal sides and a sealing edge 4" in the bottom area two layers with each other, which are designed to be open on a bag opening 3.
  • Two adjacent bag bodies 2 are held together in the region of a longitudinal sealing edge layer 5 via a perforation and can be released by severing the perforation 6.
  • the bags 1 can be coiled up on a roll and then torn off by the user.
  • the bags 1, 1 'and 1 each consist of two layers of a composite material, wherein a plastic film is provided as the inner layer, which is inextricably bonded to an outer layer, for example by gluing has a thickness of between 2 ⁇ m to 20 ⁇ m, in particular 5 to 10 ⁇ m, Instead of an outer layer of metal foil, it is also possible to use a paper which is permanently bonded to the plastic film ,
  • any type of adhesive suitable for bonding the plastic film to the backsheet may be used as the adhesive to provide a stable bond between the backsheet and the backsheet under the expected thermal and mechanical conditions.
  • two- or multi-component systems or hot melt adhesives are used.
  • a polyurethane adhesive can be used, which is applied, for example, in an amount of 2 to 5 g / m 2 .
  • the inner layer of plastic material is suitable for food contact and preferably heat resistant up to a range of 220 ° C.
  • the inner layer may have a thickness between 2 microns to 15 microns, in particular 3 to 7 microns, and thus be thinner than the outer layer.
  • the Plastic film consists of PET (polyethylene terephthalate).
  • the composite material can be deformed and folded well, so that the composite material can cling well to the contents in the bag 1, 1 ', 1 ", and the user can easily remove the bag 1, 1', 1" by folding, wrapping or flanging the bag opening 3 close.
  • the composite material also has sufficient mechanical stability at freezing temperatures up to about -20 ° C and the bags 1, 1 ', 1 "can be placed with the food directly from the freezer in an oven so that the bag 1, 1', 1 "can be heated there.
  • the bag 1, 1 ', 1 " is shown with a smooth bag opening 3, in which the two layers are placed on top of each other, It is of course also possible to make a layer of the bag body 2 longer, which then turns over as a flap the other position can be folded.
  • the bag can be made of the composite material largely free in shape and in size to use it for different applications can.
  • FIGS. 4A to 4C Another bag 1 '"is shown in which, compared to the one in FIG. 1 In the exemplary embodiment shown, an inwardly folded bottom fold 4 "is formed between the strip-like sealing layers 5 on the bag body 2 on the side opposite the bag opening 3.
  • the bottom fold 4 '" folded inwards allows the bag to be further opened in the bottom area and, for example, on one side Stove 6 are turned off, as shown schematically in FIG. 4C is shown.
  • a material contained in the bag 1 "' can be heated particularly effectively, since the cooking plate 6 is separated from the material only by the thin composite material in the region of the bottom fold 4"'.
  • the stove plate 6 may be formed as an induction cooker, which directly heats the metal foil to the bag 1"', thus allowing rapid heating.
  • the Bag opening 3 may remain open or closed by a folding edge.
  • FIGS. 5A and 5B Another embodiment of a bag is shown in which opposite FIG. 2 a modification has been made in that the sealing edge layers have been replaced by gussets 5 '.
  • the gussets 5 ' extend from the bag opening 3 to a sealing edge 4' at the bottom of the bag.
  • a longitudinal seam 7 is formed in a central region of the bag body 2, to which the layers of the composite material of the bag are glued or welded together.
  • FIG. 6 Another embodiment of a bag 10 according to the invention is shown in FIG FIG. 6 shown.
  • the bag 10 is formed as a sealed package having a bag body 11 which is closed at opposite sides by seams 12. On an upper side of the bag body, an opening is closed by an adhesive label 13.
  • the bag 10 is made of the same composite material as the previous bags and contains a material, such as a food, that can be heated in the bag 10.
  • FIGS. 7A and 7B another bag 20 is shown, shown schematically and made substantially as a cylindrical container of composite material.
  • the bag 20 has a substantially circular opening 21 and can be filled with a material to be heated.
  • a bottom of the bag 20 comprises an outer layer of a Nicoallfolie, in particular aluminum foil, and an inner layer of plastic. It is also possible to provide the bottom of the bag on the outside with a plastic film and inside the metal foil, in particular the aluminum foil.
  • the aluminum foil can then optionally also be coated, for example with a protective layer for the corrosion protection of plastic or silicone.
  • bag in the sense of the present application is also intended to cover containers which are essentially cup-shaped.
  • Such containers can also include semi-rigid container containing a thin aluminum layer in the bottom area and consist in the wall area of an aluminum-plastic composite.
  • Such a container may in principle have any geometric shape, the bottom surface may be rectangular, square, oval or circular be.
  • the side walls can be made longer or shorter, depending on the application.
  • the layer of aluminum can thus be arranged optionally on the outside or inside.
  • the bag need not be made entirely of the composite material, but may also have sections made of a different composite material or of only one layer.
  • the bag according to the invention is preferably used for heating materials, in particular foods.
  • the bag can be placed on a stove top 6, which is either merely heated or formed as an induction field.
  • the bag then rests on the induction field with such an area that the oven recognizes that an induction-suitable medium is arranged on the induction field.
  • the bag according to the invention can also be placed in a non-conductive container, for example a glass or ceramic dish, on the induction field, since the magnetic field of the induction oven penetrates the materials substantially without losses.
  • the composite material according to the invention preferably consists of an aluminum foil which has a layer thickness of between 6 and 10 ⁇ m, which is glued over a polyurethane adhesive to a plastic film of PET.
  • the plastic film has a thickness between 4 and 8 microns, in particular between 5 to 7 microns, on. Only a small amount of adhesive is required for bonding the plastic film, for example in the range between 2 to 4 g / m 2 .
  • the bag is to be designed as a semi-rigid container, a larger layer thickness is advantageous, the overall composite preferably having a thickness of between 40 and 80 ⁇ m.

Description

Die vorliegende Erfindung betrifft einen Beutel oder einen Behälter für die Aufbewahrung und Zubereitung von Lebensmitteln, mit einem aus mindestens zwei Lagen gebildeten Beutelkörper.The present invention relates to a bag or a container for the storage and preparation of food, with a bag body formed from at least two layers.

Es gibt Beutel aus Kunststofffolie, insbesondere aus thermofixiertem PET oder einem speziellen Polyamid, die als Bratbeutel Verwendung finden und an ihrer Innenseite glatt und nicht klebend ausgebildet sind. Um diese Beutel zu verschließen, ist es notwendig, die Beutelöffnung mit einem separaten Verschluss zu versehen, beispielsweise einem Clip oder einer Klemme. Herkömmlich biaxial orientierte und thermofixierte PET-Folien lassen sich nicht durch beheizte Balken siegeln, sondern es muss dazu eine zusätzliche Siegelschicht vorgesehen sein. Daher werden solche Beutel meist im Trennschweißverfahren hergestellt, weshalb keine Fertigung der Beutel auf einer Rolle möglich ist, da die Bahnen immer durchtrennt werden müssen.There are bags made of plastic film, in particular made of heat-set PET or a special polyamide, which are used as Bratbeutel use and are smooth and not sticky on its inside. To close these pouches, it is necessary to provide the pouch opening with a separate closure, such as a clip or clamp. Conventional biaxially oriented and heat-set PET films can not be sealed by heated bars, but an additional sealing layer must be provided for this purpose. Therefore, such bags are usually produced by the separation welding process, which is why no production of the bag on a roll is possible, since the webs must always be severed.

Aus Polyamid hergestellte Beutel sind zudem relativ steif und werden durch Wasseraufnahme weicher und eignen sich daher weniger gut zum Einfrieren, da sie an dem Gefriergut anhaften können. Beim Einsatz als Bratbeutel müssen die Beutel dann durch den Anwender perforiert werden, beispielsweise durch Einschneiden mit einer Schere, um ein versehentliches Platzen durch den sich bildenden Innendruck beim Erhitzen zu verhindern.Made of polyamide bags are also relatively stiff and are softer by water absorption and are therefore less suitable for freezing, since they can adhere to the frozen food. When used as a roasting bag, the bags must then be perforated by the user, for example by cutting with a pair of scissors to prevent accidental bursting due to the forming internal pressure during heating.

Die US 4 571 337 offenbart einen Beutel mit einer äußeren Lage aus Papier und einer inneren Lage aus einer Polyesterfolie. An der inneren Folie ist eine Beschichtung aufgebracht, die durch Wärme und Druck aktiviert werden kann, um zwei innere Lagen miteinander zu versiegeln.The US 4 571 337 discloses a pouch having an outer layer of paper and an inner layer of a polyester film. A coating is applied to the inner film which can be activated by heat and pressure to seal two inner layers together.

Die GB 1 508 492 offenbart einen Beutel mit einem Laminat aus einer Außenlage aus Papier und einer Innenlage aus einer Folie aus Polyethylen. An gegenüberliegenden Seitenkanten wird die Innenlage heißgesiegelt. An einem Bodenbereich werden Nahtstellen mit einem Kleber beschichtet, um das Laminat mit einem standfesten Boden herzustellen.The GB 1 508 492 discloses a pouch with a laminate of an outer layer of paper and an inner layer of a film of polyethylene. On opposite side edges, the inner layer is heat sealed. At a floor area, joints are coated with an adhesive to produce the laminate with a stable floor.

Es ist daher Aufgabe der vorliegenden Erfindung, einen Beutel für die Aufbewahrung und Zubereitung von Lebensmitteln zu schaffen, der einfach herstellbar ist und eine optimierte Handhabung gewährleistet.It is therefore an object of the present invention to provide a bag for the storage and preparation of food, which is easy to prepare and ensures optimized handling.

Zur Lösung dieser Aufgabe wird ein Beutel oder ein Behälter mit den Merkmalen des Anspruches 1 geschaffen.To solve this problem, a bag or container with the features of claim 1 is provided.

Erfindungsgemäß sind die Lagen des Beutelkörpers aus einem Verbundmaterial mit einer für den Lebensmittelkontakt geeigneten Innenlage aus Kunststoff und einer Außenlage aus Papier und/oder Metallfolie gebildet. Dadurch ist die Innenseite im Gegensatz zu reinen Aluminiumfolien säure- und korrosionsbeständig. Das Verbundmaterial ist jedoch durch die Außenlage aus Papier und/oder Metallfolie formbar, d.h. der Benutzer kann das Material so verformen, dass dieses weitgehend in der verformten Lage verbleibt. Dies kann dazu genutzt werden, die Beutelöffnung durch ein Eindrehen, Falten oder Um- bördeln weitgehend dicht zu verschließen und den Beutel als Bratbeutel einzusetzen. Zudem lässt sich das Verbundmaterial auf einfache Weise verarbeiten, da sich überraschend herausgestellt hat, dass das Verbundmaterial heißsiegelfähig ist. Dementsprechend können auf herkömmlichen Beutelmaschinen Siegelrandbeutel mit beliebig vielen Nähten auf einer Rolle oder als Einzelbeutel hergestellt werden.According to the invention, the layers of the bag body are formed of a composite material with an inner layer of plastic suitable for food contact and an outer layer of paper and / or metal foil. As a result, the inside is acid and corrosion resistant, in contrast to pure aluminum foil. However, the composite material is moldable by the outer layer of paper and / or metal foil, i. the user can deform the material so that it remains largely in the deformed position. This can be used to close the bag opening by screwing, folding or flanging tightly and to use the bag as a frying bag. In addition, the composite material can be processed in a simple manner, since it has surprisingly been found that the composite material is heat-sealable. Accordingly, on conventional bag machines, sealing edge bags with as many seams as desired can be produced on a roll or as a single bag.

Gemäß der Erfindung ist die Innenlage mit der Außenlage verklebt. Dadurch wird ein Ablösen der Innenlage von der Außenlage sicher vermieden.According to the invention, the inner layer is glued to the outer layer. As a result, detachment of the inner layer from the outer layer is reliably avoided.

Ferner ist auch die direkte Aufbringung eines temperaturfesten Kunststoffes als Innenlage aus der Schmelze heraus möglich, beispielsweise durch Extrusionsbeschichtung. Auf diese Weise ist der Einsatz eines Klebers nicht mehr erforderlich.Furthermore, the direct application of a temperature-resistant plastic as an inner layer of the melt out is possible, for example by extrusion coating. In this way, the use of an adhesive is no longer necessary.

Um den Beutel auch als Bratbeutel einsetzen zu können, weist das Verbundmaterial eine Hitzebeständigkeit bis 200° C, insbesondere bis 220° C, auf. Dadurch kann der Beutel zum Garen von Lebensmitteln im Backofen verwendet werden.In order to use the bag as a frying bag, the composite material has a heat resistance up to 200 ° C, in particular up to 220 ° C, on. This allows the bag to be used to cook food in the oven.

Ferner sind die Lagen des Beutels randseitig zumindest teilweise an Nähten miteinander verschweißt und an einer Seite ist eine Beutelöffnung ausgebildet. Dadurch kann der Beutel aus zwei übereinander gelegten Lagen hergestellt werden.Furthermore, the layers of the bag are at least partially welded together at the edges at seams and on one side of a bag opening is formed. This allows the bag to be made from two superimposed layers.

Als Außenlage wird vorzugsweise Aluminiumfolie eingesetzt, die leicht faltbar ist und eine gute Formbarkeit besitzt. Die Dicke der Außenlage kann dabei zwischen 2 µm bis 20 µm, insbesondere 5 bis 10 µm, betragen.The outer layer used is preferably aluminum foil, which is easily foldable and has good formability. The thickness of the outer layer can be between 2 μm to 20 μm, in particular 5 to 10 μm.

Die Innenlage des Verbundmaterials besteht aus Kunststofffolie aus PET. Die Innenlage weist vorzugsweise eine Dicke von 2 µm bis 15 µm, insbesondere 3 bis 7 µm, auf. Dabei kann die Innenlage dünner als die Außenlage ausgebildet sein.The inner layer of the composite material consists of plastic film made of PET. The inner layer preferably has a thickness of 2 μm to 15 μm, in particular 3 to 7 μm. In this case, the inner layer may be thinner than the outer layer.

Die Nähte des Beutels weisen vorzugsweise eine Nahtfestigkeit von mehr als 4 N/cm auf. Dadurch wird ein reißfester Beutel hergestellt, der im Haushalt einfach eingesetzt werden kann.The seams of the bag preferably have a seam strength of more than 4 N / cm. This produces a tear-resistant bag that can be easily used in the home.

Das Verbundmaterial ist vorzugsweise faltbar ausgebildet. Mit faltbar ist in diesem Zusammenhang gemeint, dass die Duktilität so ausgebildet ist, dass nach einem Falten des Verbundmaterials das Material im Wesentlichen in einer gefalteten Position verbleibt und nicht elastisch in eine Ausgangslage zurückbewegt wird.The composite material is preferably foldable. Foldable in this context means that the ductility is such that after folding of the composite material, the material substantially remains in a folded position and is not elastically moved back to a starting position.

Gemäß einer weiteren Ausgestaltung der Erfindung ist die Innenlage auf der nach innen gewandten Seite mit einem Antihaftmittel, insbesondere Silikon, beschichtet. Dadurch wird ein Anhaften des Verbundmaterials an dem Lebensmittel beim Einfrieren oder beim Garen vermieden.According to a further embodiment of the invention, the inner layer is coated on the side facing inwards with an anti-adhesive agent, in particular silicone. As a result, adhesion of the composite material to the food during freezing or cooking is avoided.

Gemäß einer Ausgestaltung ist als Außenlage ein Papier vorgesehen. Das Papier kann dabei ein Flächengewicht zwischen 10 bis 50 g/m2 aufweisen. Durch den Einsatz von Papier kann die Außenseite bedruckt und in der gewünschten Weise grafisch gestaltet sein.According to one embodiment, a paper is provided as the outer layer. The paper may have a basis weight between 10 to 50 g / m 2 . By using paper, the outside can be printed and graphically designed in the desired way.

Vorzugsweise ist der Beutel als geschlossene Verpackung ausgebildet, bei der die Beutelöffnung verschlossen ist, wahlweise durch eine Naht oder ein gesondertes Verschlusselement, beispielsweise ein Klebeetikett. In der geschlossenen Verpackung ist vorzugsweise ein zu erwärmendes Material, insbesondere ein Lebensmittel, angeordnet. Dadurch kann der Beutel zum Erwärmen des Materials direkt auf eine Herdplatte gelegt werden.Preferably, the bag is formed as a closed package in which the bag opening is closed, optionally by a seam or a separate closure element, such as an adhesive label. In the closed packaging, a material to be heated, in particular a food, is preferably arranged. This allows the bag to be placed directly on a hotplate to heat the material.

Erfindungsgemäß wird auch eine Verwendung eines Beutels als Kochgefäß zur Ablage auf einer Herdplatte, insbesondere einer Induktionsherdplatte, bereitgestellt. Dadurch kann der Vorteil genutzt werden, dass der Beutel als Kochgefäß eingesetzt wird und nur eine geringe Masse aufweist. Im Vergleich mit handelsüblichen Kochtöpfen dauert es zunächst relativ lange, bis sich der Boden erwärmt hat und dann die eingefüllten Speisen erwärmt werden. Durch die Erwärmung des in dem Beutel enthaltenen Materials wird der Aufwärmvorgang deutlich verkürzt und zudem kann der Beutel auch als industriell befüllbare Verpackung eingesetzt werden. Es ist natürlich auch möglich, dass ein Beutel vom Anwender selbst zur anschließenden Zubereitung von Speisen gefüllt wird.According to the invention, a use of a bag as a cooking vessel for storage on a stove top, in particular an induction cooker, provided. As a result, the advantage can be used that the bag is used as a cooking vessel and has only a small mass. In comparison with commercial cooking pots, it takes a relatively long time until the bottom has warmed up and then the filled food is heated. By heating the material contained in the bag, the warm-up process is significantly shortened and also the bag can be used as an industrially fillable packaging. It is of course also possible that a bag is filled by the user himself for the subsequent preparation of food.

Die Erfindung wird nachfolgend anhand mehrerer Ausführungsbeispiele mit Bezug auf die beigefügten Zeichnungen näher beschrieben. Es zeigen:

Figur 1
eine Ansicht eines erfindungsgemäßen Beutels mit Bodenfalte;
Figur 2
eine Ansicht eines erfindungsgemäßen Beutels mit Siegelrand;
Figur 3
eine Ansicht einer Bahn aus mehreren erfindungsgemäßen Beuteln;
Figuren 4A bis 4C
mehrere Ansichten eines weiteren Ausführungsbeispiels eines erfindungsgemäßen Beutels;
Figuren 5A und 5B
zwei Ansichten einer weiteren Ausführungsform eines erfindungsgemäßen Beutels;
Figur 6
eine perspektivische Ansicht eines als Verpackung ausgebildeten Beutels, und
Figuren 7A und 7B
zwei Ansichten eines als Kochgefäß ausgebildeten Beutels.
The invention is described below with reference to several embodiments with reference to the accompanying drawings. Show it:
FIG. 1
a view of a bag according to the invention with bottom fold;
FIG. 2
a view of a bag according to the invention with sealing edge;
FIG. 3
a view of a web of a plurality of bags according to the invention;
FIGS. 4A to 4C
several views of another embodiment of a bag according to the invention;
FIGS. 5A and 5B
two views of another embodiment of a bag according to the invention;
FIG. 6
a perspective view of a bag formed as a packaging, and
FIGS. 7A and 7B
two views of a trained as a cooking bag.

In Figur 1 ist ein Beutel 1 oder ein Behälter gezeigt, der aus einem Beutelkörper aus zwei übereinander angeordneten Lagen gebildet ist, die an gegenüberliegenden Längsseiten durch eine streifenförmige Siegelschicht 5 miteinander verbunden sind. An einer Stirnkante ist eine Bodenfalte 4 vorgesehen, die die beiden Lagen miteinander verbindet. An der zur Bodenfalte 4 gegenüberliegenden Seite ist eine Beutelöffnung 3 zum Befüllen des Beutels 1 ausgebildet.In FIG. 1 a bag 1 or a container is shown, which is formed from a bag body of two superposed layers, which at opposite longitudinal sides by a strip-shaped sealing layer 5 together are connected. At a front edge a bottom fold 4 is provided, which connects the two layers together. At the opposite side of the bottom fold 4 a bag opening 3 is formed for filling the bag 1.

Bei dem in Figur 2 gezeigten Beutel 1' ist statt der Bodenfalte 4 eine weitere Siegelrandschicht 4' im Bodenbereich vorgesehen, so dass die beiden Lagen an drei Seiten über streifenförmige Siegelrandschichten 4' und 5 aneinander festgelegt sind.At the in FIG. 2 shown bag 1 'is provided instead of the bottom fold 4, a further sealing edge layer 4' in the bottom region, so that the two layers on three sides via strip-shaped edge sealing layers 4 'and 5 are fixed to each other.

In Figur 3 sind mehrere aneinanderhängende Beutel 1" gezeigt, die jeweils aus einem Beutelkörper 2 gebildet sind, der über Siegelrandschichten 5 an den Längsseiten und einen Siegelrand 4" im Bodenbereich zwei Lagen miteinander verbindet, die an einer Beutelöffnung 3 offen ausgestaltet sind. Zwei benachbarte Beutelkörper 2 sind im Bereich einer längsseitigen Siegelrandschicht 5 über eine Perforation aneinander gehalten und können durch Auftrennen der Perforation 6 gelöst werden. Dadurch lassen sich die Beutel 1" auf eine Rolle zusammenhängend aufwickeln und dann vom Benutzer abreißen.In FIG. 3 a plurality of mutually adjoining bags 1 "are shown, which are each formed of a bag body 2, which connects via sealing edge layers 5 at the longitudinal sides and a sealing edge 4" in the bottom area two layers with each other, which are designed to be open on a bag opening 3. Two adjacent bag bodies 2 are held together in the region of a longitudinal sealing edge layer 5 via a perforation and can be released by severing the perforation 6. As a result, the bags 1 "can be coiled up on a roll and then torn off by the user.

Die Beutel 1, 1' und 1" bestehen jeweils aus zwei Lagen aus einem Verbundmaterial, wobei als Innenlage eine Kunststofffolie vorgesehen ist, die mit einer Außenlage unlösbar verbunden ist, beispielsweise durch Verkleben. Die Außenlage besteht aus einer Metallfolie, insbesondere einer Aluminiumfolie, und weist eine Dicke zwischen 2 µm bis 20 µm, insbesondere 5 bis 10 µm, auf. Statt einer Außenlage aus Metallfolie kann auch ein Papier eingesetzt werden, das mit der Kunststofffolie unlösbar verbunden ist. Zudem kann die Lage aus Verbundmaterial auch mehr als zwei Schichten aufweisen.The bags 1, 1 'and 1 "each consist of two layers of a composite material, wherein a plastic film is provided as the inner layer, which is inextricably bonded to an outer layer, for example by gluing has a thickness of between 2 μm to 20 μm, in particular 5 to 10 μm, Instead of an outer layer of metal foil, it is also possible to use a paper which is permanently bonded to the plastic film ,

Als Kleber kann jedes Klebemittel eingesetzt werden, das zum Verbinden der Kunststofffolie mit der Außenlage geeignet ist, damit eine stabile Verbindung zwischen der Innenlage und der Außenlage unter den zu erwartenden thermischen und mechanischen Bedingungen erhalten wird. Vorzugsweise werden Zwei-oder Mehrkomponentensysteme oder Schmelzkleber eingesetzt. Insbesondere kann ein Polyurethankleber eingesetzt werden, der beispielsweise in einer Menge von 2 bis 5 g/m2 aufgetragen wird.Any type of adhesive suitable for bonding the plastic film to the backsheet may be used as the adhesive to provide a stable bond between the backsheet and the backsheet under the expected thermal and mechanical conditions. Preferably, two- or multi-component systems or hot melt adhesives are used. In particular, a polyurethane adhesive can be used, which is applied, for example, in an amount of 2 to 5 g / m 2 .

Die Innenlage aus Kunststoffmaterial ist für den Lebensmittelkontakt geeignet und vorzugsweise bis zu einem Bereich von 220° C hitzebeständig. Die Innenlage kann dabei eine Dicke zwischen 2 µm bis 15 µm, insbesondere 3 bis 7 µm, aufweisen und somit dünner ausgebildet sein als die Außenlage. Die Kunststofffolie besteht aus PET (Polyethyleneterephtalat).The inner layer of plastic material is suitable for food contact and preferably heat resistant up to a range of 220 ° C. The inner layer may have a thickness between 2 microns to 15 microns, in particular 3 to 7 microns, and thus be thinner than the outer layer. The Plastic film consists of PET (polyethylene terephthalate).

Zudem ist es möglich, die Innenlage an der Innenseite antihaftend zu beschichten, beispielsweise mit Silikon, um ein Anhaften von Lebensmitteln zu vermeiden.In addition, it is possible to coat the inner layer on the inside non-stick, for example, with silicone, in order to avoid sticking of food.

Durch die dünne Ausbildung der Innenlage lässt sich das Verbundmaterial gut verformen und falten, so dass sich das Verbundmaterial gut an das Füllgut im Beutel 1, 1', 1" anschmiegen kann. Ferner kann der Anwender den Beutel 1, 1', 1" leicht durch Falten, Einwickeln oder Umbördeln der Beutelöffnung 3 verschließen.Due to the thin formation of the inner layer, the composite material can be deformed and folded well, so that the composite material can cling well to the contents in the bag 1, 1 ', 1 ", and the user can easily remove the bag 1, 1', 1" by folding, wrapping or flanging the bag opening 3 close.

Das Verbundmaterial weist zudem eine ausreichende mechanische Stabilität bei Einfriertemperaturen bis etwa -20° C auf und die Beutel 1, 1', 1" können mit den Lebensmitteln unmittelbar aus dem Gefrierfach in einen Backofen gelegt werden, damit der Beutel 1, 1', 1" dort erhitzt werden kann.The composite material also has sufficient mechanical stability at freezing temperatures up to about -20 ° C and the bags 1, 1 ', 1 "can be placed with the food directly from the freezer in an oven so that the bag 1, 1', 1 "can be heated there.

In den dargestellten Ausführungsbeispielen ist der Beutel 1, 1', 1" mit einer glatten Beutelöffnung 3 gezeigt, bei der die beiden Lagen baugleich aufeinander gelegt sind. Es ist natürlich auch möglich, eine Lage des Beutelkörpers 2 länger auszubilden, die dann als Lasche um die andere Lage gefaltet werden kann.In the exemplary embodiments illustrated, the bag 1, 1 ', 1 "is shown with a smooth bag opening 3, in which the two layers are placed on top of each other, It is of course also possible to make a layer of the bag body 2 longer, which then turns over as a flap the other position can be folded.

Zudem kann der Beutel aus dem Verbundmaterial weitgehend frei in der Form und in der Größe gestaltet werden, um ihn für unterschiedliche Anwendungsfälle einsetzen zu können.In addition, the bag can be made of the composite material largely free in shape and in size to use it for different applications can.

In den Figuren 4A bis 4C ist ein weiterer Beutel 1'" gezeigt, bei dem verglichen mit dem in Figur 1 gezeigten Ausführungsbeispiel eine nach innen umgefaltete Bodenfalte 4'" zwischen den streifenförmigen Siegelschichten 5 an dem Beutelkörper 2 auf der zur Beutelöffnung 3 gegenüberliegenden Seite ausgebildet ist. Durch die nach innen gefaltete Bodenfalte 4'" kann der Beutel im Bodenbereich weiter geöffnet werden und beispielsweise auf einer Herdplatte 6 abgestellt werden, wie dies schematisch in Figur 4C gezeigt ist. Dadurch kann ein in dem Beutel 1"' enthaltenes Material besonders effektiv erwärmt werden, da die Herdplatte 6 nur durch das dünne Verbundmaterial im Bereich der Bodenfalte 4"' von dem Material getrennt ist. Zum Erhitzen des Beutels 1'" kann die Herdplatte 6 als Induktionsherdplatte ausgebildet sein, die die Metallfolie an dem Beutel 1"' direkt erwärmt, so dass ein schnelles Erwärmen ermöglicht wird. Die Beutelöffnung 3 kann dabei geöffnet bleiben oder durch eine Faltkante verschlossen sein.In the FIGS. 4A to 4C Another bag 1 '"is shown in which, compared to the one in FIG FIG. 1 In the exemplary embodiment shown, an inwardly folded bottom fold 4 "is formed between the strip-like sealing layers 5 on the bag body 2 on the side opposite the bag opening 3. The bottom fold 4 '" folded inwards allows the bag to be further opened in the bottom area and, for example, on one side Stove 6 are turned off, as shown schematically in FIG. 4C is shown. Thereby, a material contained in the bag 1 "'can be heated particularly effectively, since the cooking plate 6 is separated from the material only by the thin composite material in the region of the bottom fold 4"'. For heating the bag 1 '", the stove plate 6 may be formed as an induction cooker, which directly heats the metal foil to the bag 1"', thus allowing rapid heating. The Bag opening 3 may remain open or closed by a folding edge.

In den Figuren 5A und 5B ist eine weitere Ausführungsform eines Beutels gezeigt, bei dem gegenüber Figur 2 eine Abwandlung dahingehend vorgenommen wurde, dass die Siegelrandschichten durch Seitenfalten 5' ersetzt worden sind. Die Seitenfalten 5' erstrecken sich von der Beutelöffnung 3 bis zu einem Siegelrand 4' am Boden des Beutels. Parallel zu den Seitenfalten 5' ist in einem mittigen Bereich des Beutelkörpers 2 eine Längsnaht 7 ausgebildet, an der die Lagen des Verbundmaterials des Beutels miteinander verklebt oder verschweißt sind. Durch die Seitenfalten 5' lässt sich der Beutel 3 leichter öffnen und er kann dadurch leichter eine quaderförmige Kontur erhalten.In the FIGS. 5A and 5B Another embodiment of a bag is shown in which opposite FIG. 2 a modification has been made in that the sealing edge layers have been replaced by gussets 5 '. The gussets 5 'extend from the bag opening 3 to a sealing edge 4' at the bottom of the bag. Parallel to the side folds 5 ', a longitudinal seam 7 is formed in a central region of the bag body 2, to which the layers of the composite material of the bag are glued or welded together. By the side gussets 5 ', the bag 3 can be opened more easily and it can thereby more easily obtain a cuboid contour.

Ein weiteres Ausführungsbeispiel eines erfindungsgemäßen Beutels 10 ist in Figur 6 dargestellt. Der Beutel 10 ist als verschlossene Verpackung ausgebildet, die einen Beutelkörper 11 aufweist, der an gegenüberliegenden Seiten über Nähte 12 verschlossen ist. An einer Oberseite des Beutelkörpers ist eine Öffnung über ein Klebeetikett 13 verschlossen. Der Beutel 10 besteht aus dem gleichen Verbundmaterial wie die vorangegangenen Beutel und enthält ein Material, beispielsweise ein Lebensmittel, das in dem Beutel 10 erwärmt werden kann.Another embodiment of a bag 10 according to the invention is shown in FIG FIG. 6 shown. The bag 10 is formed as a sealed package having a bag body 11 which is closed at opposite sides by seams 12. On an upper side of the bag body, an opening is closed by an adhesive label 13. The bag 10 is made of the same composite material as the previous bags and contains a material, such as a food, that can be heated in the bag 10.

In den Figuren 7A und 7B ist ein weiterer Beutel 20 gezeigt, der schematisch dargestellt ist und im Wesentlichen als zylindrischer Behälter aus Verbundmaterial hergestellt ist. Der Beutel 20 besitzt eine im Wesentlichen kreisförmige Öffnung 21 und kann mit einem zu erwärmenden Material befüllt werden. Ein Boden des Beutels 20 umfasst eine Außenschicht aus einer Mietallfolie, insbesondere Aluminiumfolie, und eine Innenlage aus Kunststoff. Es ist auch möglich, den Boden des Beutels außen mit einer Kunststofffolie und innen die Metallfolie, insbesondere die Aluminiumfolie, vorzusehen. Die Aluminiumfolie kann dann optional auch noch beschichtet sein, beispielsweise mit einer Schutzschicht für den Korrosionsschutz aus Kunststoff oder Silikon.In the FIGS. 7A and 7B another bag 20 is shown, shown schematically and made substantially as a cylindrical container of composite material. The bag 20 has a substantially circular opening 21 and can be filled with a material to be heated. A bottom of the bag 20 comprises an outer layer of a Mietallfolie, in particular aluminum foil, and an inner layer of plastic. It is also possible to provide the bottom of the bag on the outside with a plastic film and inside the metal foil, in particular the aluminum foil. The aluminum foil can then optionally also be coated, for example with a protective layer for the corrosion protection of plastic or silicone.

Der Begriff "Beutel" im Sinne der vorliegenden Anmeldung soll auch Behälter erfassen, die im Wesentlichen schalenförmig ausgebildet sind. Zu solchen Behältern können auch halbstarre Behälter zählen, die eine dünne Aluminiumlage im Bodenbereich enthalten und im Wandbereich aus einem Aluminium-Kunststoff-Verbund bestehen. Ein solcher Behälter kann prinzipiell jede geometrische Form haben, die Bodenfläche kann rechteckig, quadratisch, oval oder kreisförmig sein. Die Seitenwände können länger oder kürzer ausgebildet sein, je nach Anwendungsfall. Die Schicht aus Aluminium kann somit wahlweise an der Außen- oder Innenseite angeordnet sein.The term "bag" in the sense of the present application is also intended to cover containers which are essentially cup-shaped. Such containers can also include semi-rigid container containing a thin aluminum layer in the bottom area and consist in the wall area of an aluminum-plastic composite. Such a container may in principle have any geometric shape, the bottom surface may be rectangular, square, oval or circular be. The side walls can be made longer or shorter, depending on the application. The layer of aluminum can thus be arranged optionally on the outside or inside.

Der Beutel muss nicht vollständig aus dem Verbundmaterial hergestellt sein, sondern kann auch Abschnitte aufweisen, die aus einem anderen Verbundmaterial oder aus nur einer Lage bestehen.The bag need not be made entirely of the composite material, but may also have sections made of a different composite material or of only one layer.

Der erfindungsgemäße Beutel wird vorzugsweise zum Erwärmen von Materialien, insbesondere Lebensmitteln, eingesetzt. Dabei kann der Beutel auf eine Herdplatte 6 gelegt werden, die entweder lediglich erwärmt wird oder als Induktionsfeld ausgebildet ist. Der Beutel liegt dann mit einer solchen Fläche auf dem Induktionsfeld auf, dass der Herd erkennt, dass ein induktionsgeeignetes Medium auf dem Induktionsfeld angeordnet ist. Optional kann der erfindungsgemäße Beutel auch in einem nichtleitenden Behältnis, beispielsweise einer Glas- oder Keramikschale, auf das Induktionsfeld gestellt werden, da das Magnetfeld des Induktionsofens die Materialien im Wesentlichen ohne Verluste durchdringt.The bag according to the invention is preferably used for heating materials, in particular foods. In this case, the bag can be placed on a stove top 6, which is either merely heated or formed as an induction field. The bag then rests on the induction field with such an area that the oven recognizes that an induction-suitable medium is arranged on the induction field. Optionally, the bag according to the invention can also be placed in a non-conductive container, for example a glass or ceramic dish, on the induction field, since the magnetic field of the induction oven penetrates the materials substantially without losses.

Das erfindungsgemäße Verbundmaterial besteht vorzugsweise aus einer Aluminiumfolie, die eine Schichtdicke zwischen 6 und 10 µm aufweist, die über einen Polyurethankleber mit einer Kunststofffolie aus PET verklebt ist. Die Kunststofffolie weist eine Dicke zwischen 4 und 8 µm, insbesondere zwischen 5 bis 7 µm, auf. Es ist für das Verkleben der Kunststofffolie nur ein geringer Klebemitteleinsatz erforderlich, beispielsweise im Bereich zwischen 2 bis 4 g/m2.The composite material according to the invention preferably consists of an aluminum foil which has a layer thickness of between 6 and 10 μm, which is glued over a polyurethane adhesive to a plastic film of PET. The plastic film has a thickness between 4 and 8 microns, in particular between 5 to 7 microns, on. Only a small amount of adhesive is required for bonding the plastic film, for example in the range between 2 to 4 g / m 2 .

Soll der Beutel als halbstarrer Behälter ausgebildet sein, ist eine größere Schichtdicke vorteilhaft, wobei der Gesamtverbund vorzugsweise eine Dicke zwischen 40 bis 80 µm aufweist.If the bag is to be designed as a semi-rigid container, a larger layer thickness is advantageous, the overall composite preferably having a thickness of between 40 and 80 μm.

Claims (12)

  1. Bag (1, 1', 1") or container for storage and preparation of foodstuffs, with a bag body (2) formed from at least two layers, a bag opening (3) being formed at one side of the bag body (2), wherein the layers are formed from a composite material with an inner layer of plastics material suitable for contact with foodstuffs and an outer layer of paper and/or a metal foil, and the inner layer is glued to the outer layer or the outer layer is coated with the inner layer by fusion or extrusion, wherein the inner layer is produced from polyethylene terephthalate (PET) and the composite material has a heat resistance up to 200° C, characterised in that the layers of the bag (1, 1', 1", 1"', 10) are welded together at the edge at least partly at seams (4', 4", 5).
  2. Bag according to claim 1 or 2, characterised in that the outer layer has a thickness between 2 µm to 20 µm, particularly 5 to 10 µm.
  3. Bag according to one of the preceding claims, characterised in that the inner layer has a thickness between 2 µm to 15 µm, preferably 3 to 7 µm.
  4. Bag according to one of the preceding claims, characterised in that the seams (4', 4", 5) have a seam strength of more than 4 N/cm.
  5. Bag according to any one of the preceding claims, characterised in that the composite material is constructed to be foldable.
  6. Bag according to one of the preceding claims, characterised in that a polyurethane adhesive is provided as adhesive between the inner layer and the outer layer.
  7. Bag according to one of the preceding claims, characterised in that the inner layer is coated on the inwardly facing side with an anti-adhesion agent, in particular silicon.
  8. Bag according to one of the preceding claims, characterised in that an aluminium foil is provided as outer layer.
  9. Bag according to one of the preceding claims, characterised in that a paper is provided as outer layer, having a grammage between 10 to 50 g/m2.
  10. Bag according to one of the preceding claims, characterised in that the bag is constructed as a closed packaging (10).
  11. Bag according to claim 10, characterised in that a foodstuff to be heated is arranged in the closed packaging (10).
  12. Use of a bag (1, 1', 1", 10) according to one of the preceding claims as a cooking container for placing on an oven plate (6), particularly an induction oven plate.
EP12184293.4A 2011-09-15 2012-09-13 Bag or container for storage and preparation of food and use of the said bag Not-in-force EP2570364B1 (en)

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DK13185208T DK2676898T3 (en) 2011-09-15 2012-09-13 A bag or pouch for storage and food preparation and use of such a bag
EP13185208.9A EP2676898B1 (en) 2011-09-15 2012-09-13 Bag or container for storage and preparation of food and use of the said bag

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DE202011051309U DE202011051309U1 (en) 2011-09-15 2011-09-15 Bags for the storage and preparation of food

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EP13185208.9A Division-Into EP2676898B1 (en) 2011-09-15 2012-09-13 Bag or container for storage and preparation of food and use of the said bag

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EP2570364A1 (en) 2013-03-20
US20130071049A1 (en) 2013-03-21
BR102012023293B1 (en) 2020-05-26
PT2676898E (en) 2015-05-19
US10099832B2 (en) 2018-10-16
ES2535226T3 (en) 2015-05-06
EP2676898B1 (en) 2015-01-21
EP2676898A1 (en) 2013-12-25
DK2676898T3 (en) 2015-04-27
BR102012023293A2 (en) 2013-08-06
DE202011051309U1 (en) 2012-12-17

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