DE102016221687A1 - Keimzahlverringerungseinrichtung and Umfalteinrichtung for sterilizing a container precursor of a sheet-like composite, in particular in a filling machine - Google Patents

Abstract

The invention relates to a device comprising as constituents a container precursor comprising a sheet-like composite; a germ count reducing device; anda folding device; wherein the sheet-like composite includes a layer sequence including as superposed layers in the direction from an outer side of the sheet-like composite to an inner side of the sheet-like composite, a carrier layer, a barrier layer, and a polymer inner layer, wherein the micro-count reduction means is arranged and configured to deliver a seeding number reducing agent to the Inside of the sheet-like composite to a Keimzahlverringerung; wherein the folding device is arranged and configured to transfer the container precursor from a first folded state to a further folded state during the germ count reduction. Furthermore, the invention relates to a method, comprising subjecting a container precursor with a germ count reducing agent in a first folded state and a further folded state; a filling machine; a container precursor and a closed container, each characterized by a germ count; a closed container obtainable by the method or by closing the container precursor; a use of the device according to the invention for sterilizing the container precursor; and a use of a folding device.

Description

1. a) einen Behältervorläufer, beinhaltend einen flächenförmigen Verbund;
2. b) eine Keimzahlverringerungseinrichtung; und
3. c) eine Umfalteinrichtung;

wobei der flächenförmige Verbund eine Schichtfolge, beinhaltend als einander überlagernde Schichten in Richtung von einer Außenseite des flächenförmigen Verbunds zu einer Innenseite des flächenförmigen Verbunds

1. A) eine Trägerschicht,
2. B) eine Barriereschicht, und
3. C) eine Polymerinnenschicht, beinhaltet;

wobei die Keimzahlverringerungseinrichtung angeordnet und ausgebildet ist zu einer Abgabe eines Keimzahlverringerungsmittels auf die Innenseite des flächenförmigen Verbunds zu einer Keimzahlverringerung; wobei die Umfalteinrichtung angeordnet und ausgebildet ist zu einem Überführen des Behältervorläufers von einem ersten Faltzustand in einen weiteren Faltzustand während der Keimzahlverringerung. Ferner betrifft die Erfindung ein Verfahren, beinhaltend ein Beaufschlagen eines Behältervorläufers mit einem Keimzahlverringerungsmittel in einem ersten Faltzustand und einem weiteren Faltzustand; eine Füllmaschine; einen Behältervorläufer und einen geschlossener Behälter, jeweils gekennzeichnet durch eine Keimzahl; einen geschlossenen Behälter, erhältlich durch das Verfahren oder durch ein Verschließen des Behältervorläufers; eine Verwendung der erfindungsgemäßen Vorrichtung zu einem Sterilisieren des Behältervorläufers; und eine Verwendung einer Umfalteinrichtung.The present invention relates to a device comprising as constituents

1. a) a container precursor comprising a sheet-like composite;
2. b) a germ count reduction device; and
3. c) a folding device;

wherein the sheet-like composite a layer sequence, comprising as superimposed layers in the direction of an outer side of the sheet-like composite to an inner side of the sheet-like composite

1. A) a carrier layer,
2. B) a barrier layer, and
3. C) an inner polymer layer;

wherein the germ count reducing means is arranged and adapted to deliver a germ count reducing agent to the inside of the sheet-like composite to a germ count reduction; wherein the folding device is arranged and configured to transfer the container precursor from a first folded state to a further folded state during the germ count reduction. Furthermore, the invention relates to a method, comprising subjecting a container precursor with a germ count reducing agent in a first folded state and a further folded state; a filling machine; a container precursor and a closed container, each characterized by a germ count; a closed container obtainable by the method or by closing the container precursor; a use of the device according to the invention for sterilizing the container precursor; and a use of a folding device.

For a long time, the preservation of food, whether food for human consumption or animal food products by storing them in either a can or in a sealed glass with a lid. In this case, the durability on the one hand can be increased, in each of which the food and the container, here glass or can, are separated as far as possible sterilized and then filled the food in the container and this is closed. However, these proven over a long time measures to increase the shelf life of food have a number of disadvantages, such as a further necessary downstream sterilization. Cans and glasses have the disadvantage due to their substantially cylindrical shape that a very dense and space-saving storage is not possible. In addition, cans and glasses have a considerable weight, which leads to increased energy consumption during transport. In addition, for the production of glass, tinplate or aluminum, even if the raw materials used for this purpose come from recycling, a fairly high energy consumption is necessary. For glasses, aggravating an increased transport costs added. The glasses are usually prefabricated in a glassworks and then have to be transported using significant transport volumes to the food-filling operation. In addition, glasses and cans can be opened only with considerable effort or with the help of tools and thus rather cumbersome. With cans, there is a high risk of injury due to sharp edges created when opening. When it comes to glasses, it often happens that when filling or opening the filled glasses, glass fragments enter the food, which in the worst case can lead to internal injuries when eating the food. In addition, both cans and jars for labeling and advertising of the food content must be covered with labels. The jars and cans can not be easily printed directly with information and advertising. In addition to the actual printing, therefore, a substrate for it, a paper or a suitable film, as well as a fastening means, an adhesive or a sealant, necessary.

Other packaging systems are known in the art for storing food over a long period of time, preferably without impairment. These are made of sheet-like composites - often referred to as laminates - produced container. Such sheet-like composites are often composed of a thermoplastic layer of plastic, usually consisting of cardboard or paper backing layer, which gives the container dimensional stability, a primer layer, a barrier layer and another plastic layer, such as, inter alia WO 90/09926 A2 disclosed. Since the carrier layer imparts dimensional stability to the container made of the laminate, these containers, in contrast to foil bags, can be seen as a further development of the aforementioned glasses and cans.

These laminate containers already have many advantages over conventional glasses and cans. Nevertheless, there are also possibilities for improvement in these packaging systems. For example, there is a constant need for the longest possible shelf life of food in the laminate containers.

In general, it is an object of the present invention to at least partially overcome a disadvantage arising from the prior art. Another object of the invention is to provide a dimensionally stable laminate food container having increased durability. Another object of the invention is to provide a filling machine for producing filled dimensionally stable laminate food containers with increased durability. Further, it is an object of the invention to provide a container precursor for making the aforementioned advantageous dimensionally stable laminate food container, wherein the container precursor has improved processability. In addition, it is an object of the invention to provide a filling machine or a method or both for producing the aforementioned advantageous dimensionally stable laminate food container, wherein the manufacture in the filling machine or according to the method is characterized by an improved processability of a container precursor. The improved processability preferably refers above to an improved unfolding behavior of the container precursor, preferably in the filling machine. Another object of the invention is to provide the dimensionally stable laminate food container with increased durability, whereby sterilization can be made more environmentally friendly. A further object of the invention is to provide the dimensionally stable laminate food container with increased durability, wherein a taste of a food in the container is impaired as little as possible. Further, it is an object of the invention to provide the dimensionally stable laminate food container with increased durability, wherein a production time of the container is not increased, preferably reduced.

A contribution to the at least partial fulfillment of at least one, preferably more, of the above objects is afforded by the independent claims. The dependent claims provide preferred embodiments that contribute to at least partially performing at least one of the tasks.

1. a) einen Behältervorläufer, beinhaltend einen flächenförmigen Verbund;
2. b) eine Keimzahlverringerungseinrichtung; und
3. c) eine Umfalteinrichtung;

wobei der flächenförmige Verbund eine Schichtfolge, beinhaltend als einander überlagernde Schichten in Richtung von einer Außenseite des flächenförmigen Verbunds zu einer Innenseite des flächenförmigen Verbunds

1. A) eine Trägerschicht,
2. B) eine Barriereschicht, und
3. C) eine Polymerinnenschicht,

beinhaltet; wobei die Keimzahlverringerungseinrichtung angeordnet und ausgebildet ist zu einer Abgabe eines Keimzahlverringerungsmittels auf die Innenseite des flächenförmigen Verbunds zu einer Keimzahlverringerung; wobei die Umfalteinrichtung angeordnet und ausgebildet ist zu einem Überführen des Behältervorläufers von einem ersten Faltzustand in einen weiteren Faltzustand während der Keimzahlverringerung. Das Überführen wird hierin auch als Umfalten bezeichnet.A contribution to the fulfillment of at least one of the objects according to the invention is afforded by an embodiment 1 of a device comprising as components

1. a) a container precursor comprising a sheet-like composite;
2. b) a germ count reduction device; and
3. c) a folding device;

wherein the sheet-like composite a layer sequence, comprising as superimposed layers in the direction of an outer side of the sheet-like composite to an inner side of the sheet-like composite

1. A) a carrier layer,
2. B) a barrier layer, and
3. C) a polymer inner layer,

includes; wherein the germ count reducing means is arranged and adapted to deliver a germ count reducing agent to the inside of the sheet-like composite to a germ count reduction; wherein the folding device is arranged and configured to transfer the container precursor from a first folded state to a further folded state during the germ count reduction. The transfer is referred to herein as folding.

In an embodiment 2 of the invention, the device is configured according to embodiment 1, wherein the germ-reduction agent is one selected from the group consisting of electromagnetic radiation, particle radiation, gas, liquid, and plasma, or a combination of at least two thereof.

In an embodiment 3 of the invention, the apparatus is configured in accordance with embodiment 1 or 2, wherein the container precursor includes an opening, the germ count reducing means for delivering the germ count reducing agent through the opening into the container precursor.

1. a) einen ersten Längsrand und einen weiteren Längsrand beinhaltet, wobei der erste Längsrand mit dem weiteren Längsrand eine Längsnaht des Behältervorläufers bildend verbunden ist;
2. b) in folgender Reihenfolge entlang der Außenseite des flächenförmigen Verbunds in Richtung von dem ersten Längsrand zu dem weiteren Längsrand
   1. i) eine erste Längsfaltung,
   2. ii) eine zweite Längsfaltung,
   3. iii) eine dritte Längsfaltung, und
   4. iv) eine vierte Längsfaltung beinhaltet,
   wobei in dem ersten Faltzustand des Behältervorläufers

1. a. die erste Längsfaltung gekennzeichnet ist durch einen ersten Innenwinkel von weniger als 90°, bevorzugt weniger als 80°, bevorzugter weniger als 70°, bevorzugter weniger als 60°, am bevorzugtesten weniger als 50°,
2. b. die zweite Längsfaltung gekennzeichnet ist durch einen zweiten Innenwinkel von mehr als 90°, bevorzugt mehr als 100°, bevorzugter mehr als 110°, bevorzugter mehr als 120°, am bevorzugtesten mehr als 130°,
3. c. die dritte Längsfaltung gekennzeichnet ist durch einen dritten Innenwinkel von weniger als 90°, bevorzugt weniger als 80°, bevorzugter weniger als 70°, bevorzugter weniger als 60°, am bevorzugtesten weniger als 50°, und
4. d. die vierte Längsfaltung gekennzeichnet ist durch einen vierten Innenwinkel von mehr als 90°, bevorzugt mehr als 100°, bevorzugter mehr als 110°, bevorzugter mehr als 120°, am bevorzugtesten mehr als 130°;

wobei in dem weiteren Faltzustand des Behältervorläufers

1. A) der erste Innenwinkel mehr als 90°, bevorzugt mehr als 100°, bevorzugter mehr als 110°, bevorzugter mehr als 120°, am bevorzugtesten mehr als 130°, ist,
2. B) der zweite Innenwinkel weniger ist als 90°, bevorzugt weniger als 80°, bevorzugter weniger als 70°, bevorzugter weniger als 60°, am bevorzugtesten weniger als 50°,
3. C) der dritte Innenwinkel mehr ist als 90°, bevorzugt mehr als 100°, bevorzugter mehr als 110°, bevorzugter mehr als 120°, am bevorzugtesten mehr als 130°, und
4. D) der vierte Innenwinkel weniger ist als 90°, bevorzugt weniger als 80°, bevorzugter weniger als 70°, bevorzugter weniger als 60°, am bevorzugtesten weniger als 50°.

In an embodiment 4 according to the invention, the device according to one of the preceding embodiments is configured, wherein the sheet-like composite

1. a) includes a first longitudinal edge and a further longitudinal edge, wherein the first longitudinal edge is connected to the further longitudinal edge forming a longitudinal seam of the container precursor;
2. b) in the following order along the outside of the sheet-like composite in the direction from the first longitudinal edge to the further longitudinal edge
   1. i) a first longitudinal fold,
   2. ii) a second longitudinal fold,
   3. iii) a third longitudinal folding, and
   4. iv) includes a fourth longitudinal fold,
   wherein in the first folded state of the container precursor

1. a. the first longitudinal fold is characterized by a first inner angle of less than 90 °, preferably less than 80 °, more preferably less than 70 °, more preferably less than 60 °, most preferably less than 50 °,
2. b. the second longitudinal fold is characterized by a second inner angle of more than 90 °, preferably more than 100 °, more preferably more than 110 °, more preferably more than 120 °, most preferably more than 130 °,
3. c. the third longitudinal fold is characterized by a third interior angle of less than 90 °, preferably less than 80 °, more preferably less than 70 °, more preferably less than 60 °, most preferably less than 50 °, and
4. d. the fourth longitudinal fold is characterized by a fourth inner angle of more than 90 °, preferably more than 100 °, more preferably more than 110 °, more preferably more than 120 °, most preferably more than 130 °;

wherein in the further folded state of the container precursor

1. A) the first internal angle is more than 90 °, preferably more than 100 °, more preferably more than 110 °, more preferably more than 120 °, most preferably more than 130 °,
2. B) the second internal angle is less than 90 °, preferably less than 80 °, more preferably less than 70 °, more preferably less than 60 °, most preferably less than 50 °,
3. C) the third internal angle is more than 90 °, preferably more than 100 °, more preferably more than 110 °, more preferably more than 120 °, most preferably more than 130 °, and
4. D) the fourth internal angle is less than 90 °, preferably less than 80 °, more preferably less than 70 °, more preferably less than 60 °, most preferably less than 50 °.

In an embodiment 5 according to the invention, the device is designed according to one of the preceding embodiments, wherein the germ count reduction device is designed to be displaceable at least partially along a longitudinal direction of the container precursor.

In an embodiment 6 according to the invention, the device is configured according to one of the preceding embodiments, wherein the folding device comprises at least two outer engagement elements for transferring the container precursor, wherein the outer engagement elements are each arranged and configured to exert a respective force in opposing first directions of attack on the container precursor ,

1. a) dazu angeordnet und ausgebildet sind, den flächenförmigen Verbund auf der Außenseite zu kontaktieren, und
2. b) gegeneinander verschiebbar angeordnet und ausgebildet.

In an embodiment 7 according to the invention, the device according to the embodiment 6 is configured, wherein the outer engagement elements for exerting the respective force

1. a) arranged and adapted to contact the sheet-like composite on the outside, and
2. b) arranged and adapted to each other displaceable.

1. a) jeweils an einander gegenüberliegenden Wandflächen des Behältervorläufers zu kontaktieren, oder
2. b) jeweils an einander gegenüberliegenden Längskanten des Behältervorläufers zu kontaktieren.

In an embodiment 8 according to the invention, the device is designed according to one of the embodiments 6 or 7, wherein the outer engagement elements are arranged and designed to form the sheet-like composite

1. a) contact each other on opposite wall surfaces of the container precursor, or
2. b) contact each other at opposite longitudinal edges of the container precursor.

A wall surface of the container precursor is a region of the sheet-like composite bounded on opposite sides by a respective longitudinal fold. A longitudinal edge of the container precursor extends along a longitudinal fold of the sheet-like composite. Along a longitudinal edge of the container precursor two adjoining wall surfaces meet each other. In the above case b), the outer engagement elements are preferably arranged and formed to be displaceable relative to one another along a straight line which runs through the container precursor.

In an embodiment 9 according to the invention, the device is designed according to one of embodiments 6 to 8, wherein the folding device has at least two further outer engagement elements for transferring the container precursor, wherein the further outer engagement elements are respectively arranged and configured to exert a respective force in opposite further ones Attack directions on the container precursor, wherein the other attack directions are different from the first attack directions. Preferably, the further attack directions are perpendicular to the first attack directions.

1. a) dazu angeordnet und ausgebildet sind, den flächenförmigen Verbund auf der Außenseite zu kontaktieren, und
2. b) gegeneinander verschiebbar angeordnet und ausgebildet.

In an embodiment 10 according to the invention, the device according to the embodiment 9 is configured, wherein the further outer engagement elements for exerting the respective force

1. a) arranged and adapted to contact the sheet-like composite on the outside, and
2. b) arranged and adapted to each other displaceable.

1. a) jeweils an einander gegenüberliegenden Wandflächen des Behältervorläufers zu kontaktieren, oder
2. b) jeweils an einander gegenüberliegenden Längskanten des Behältervorläufers kontaktieren.

In an embodiment 11 according to the invention, the device according to the embodiment 9 or 10 is configured, wherein the further outer engagement elements are arranged and formed, the sheet-like composite

1. a) contact each other on opposite wall surfaces of the container precursor, or
2. b) each contact at opposite longitudinal edges of the container precursor.

In the above case b), the further outer engagement elements are preferably arranged and formed to be displaceable relative to one another along a straight line which runs through the container precursor.

In an embodiment 12 according to the invention, the device according to one of the embodiments 6 to 11 is configured, wherein the outer engagement elements or the further outer engagement elements or both each include a vacuum grip element.

1. a) ein Außenangriffselement, und
2. b) ein erstes Innenangriffselement aufweist,

wobei das Außenangriffselement angeordnet und ausgebildet ist zu einem Ausüben einer ersten Kraft auf den Behältervorläufer durch Kontaktieren des Behältervorläufers auf der Außenseite, wobei das erste Innenangriffselement angeordnet und ausgebildet ist zu einem Ausüben einer zweiten Kraft auf den Behältervorläufer durch Kontaktieren des Behältervorläufers auf der Innenseite, wobei die erste Kraft der zweiten Kraft entgegengesetzt ist. Hierbei kann das erste Innenangriffselement von der Keimzahlverringerungseinrichtung beinhaltet sein oder aber auch eine separate Komponente der Vorrichtung sein.In an embodiment 13 according to the invention, the device according to one of the embodiments 1 to 5 is configured, wherein the folding device for the transfer of the container precursor

1. a) an outer attack element, and
2. b) has a first inner engagement element,

wherein the outer engagement member is arranged and configured to exert a first force on the container precursor by contacting the container precursor on the outer side, the first inner engagement member being arranged and configured to exert a second force on the container precursor by contacting the container precursor on the inside the first force is opposite to the second force. In this case, the first inner engagement element can be included in the germ count reduction device or can also be a separate component of the device.

In an embodiment 14 according to the invention, the device is configured according to embodiment 13, wherein the folding means comprises a further inner engaging element, wherein the outer engaging element is further arranged and adapted to exert a third force on the container precursor by contacting the container precursor on the outside, the further one Inner engagement element is arranged and adapted to exert a fourth force on the container precursor by contacting the container precursor on the inside, wherein the third force of the fourth force is opposite. Preferably, the third force and the second force are rectified. Further preferably, the first force and the fourth force are rectified.

In an embodiment 15 according to the invention, the device according to the embodiment 13 or 14 is configured, wherein the outer engagement element is arranged and configured to be movable relative to the first inner engagement element or the further inner engagement element or both. In this case, the outer engagement element is preferably movable, wherein the first inner engagement element or the further inner engagement element or both is / are stationary.

In an embodiment 16 according to the invention, the device is configured according to one of the embodiments 13 to 15, wherein the first inner engagement element or the further inner engagement element or both is / are included in the germ count reduction device. Preferably, the first inner engagement element or the further inner engagement element or both are / is formed like a rod.

In an embodiment 17 according to the invention, the device according to one of the embodiments 13 to 16 is configured, wherein the outer engagement element is a transport element of a conveyor. A preferred conveyor is a belt conveyor or a roller conveyor or both. In the case of the belt conveyor, the transport element is preferably a conveyor belt. In the case of the roller conveyor, the transport element is preferably a transport roller.

1. a) stromab der Keimzahlverringerungseinrichtung und der Umfalteinrichtung angeordnet ist, und
2. b) ein erstes Faltwerkzeug und ein Bodenschließwerkzeug beinhaltet,

wobei das erste Faltwerkzeug ausgebildet ist zu einem Bilden eines Bodenbereichs des Behältervorläufers durch ein Falten des flächenförmigen Verbunds, wobei das Bodenschließwerkzeug ausgebildet ist zu einem Verschließen des Bodenbereichs. Ein bevorzugtes Bodenschließwerkzeug ist ein Siegelwerkzeug. Ein bevorzugtes Siegelwerkzeug ist ausgebildet zu einem Miteinanderversiegeln von aufeinander gefalteten Bereichen des flächenförmigen Verbunds.In an embodiment 18 according to the invention, the device according to one of the preceding embodiments is configured, wherein the device further includes a bottom forming station, wherein the bottom forming station

1. a) is arranged downstream of the Keimzahlverringerungseinrichtung and the Umfalteinrichtung, and
2. b) includes a first folding tool and a bottom closing tool,

wherein the first folding tool is configured to form a bottom portion of the container precursor by folding the sheet-like composite, the bottom closing tool being configured to close the bottom portion. A preferred bottom closure tool is a sealing tool. A preferred sealing tool is designed to seal together successive folded areas of the sheet-like composite.

In an embodiment 19 according to the invention, the device according to embodiment 18 is configured, wherein the bottom closing tool includes a first heating device, wherein the first heating device is configured to increase a temperature of the sheet-like composite. A preferred first heater is selected from the group consisting of a hot air blower, an ultrasonic sonotrode, an infrared radiator and a heating element. A preferred first heating element is an electrical heating element, preferably including a heating coil or a heating wire, or both. A particularly preferred first heater includes a hot air blower.

1. a) stromab der Bodenformstation angeordnet ist, und
2. b) einen Fluidauslass beinhaltet,

wobei der Fluidauslass angeordnet und ausgebildet ist zu einem Befüllen des Behältervorläufers mit einem fluiden Nahrungsmittel. In an embodiment 20 according to the invention, the device according to the embodiment 18 or 19 is configured, wherein the device further includes a filling station, wherein the filling station

1. a) is arranged downstream of the bottom forming station, and
2. b) includes a fluid outlet,

wherein the fluid outlet is arranged and configured to fill the container precursor with a fluid food.

1. a) stromab der Befüllstation angeordnet ist, und
2. b) ein weiteres Faltwerkzeug und ein Verschließwerkzeug beinhaltet,

wobei das weitere Faltwerkzeug ausgebildet ist zu einem Bilden eines Kopfbereichs des Behältervorläufers durch ein Falten des flächenförmigen Verbunds, wobei das Verschließwerkzeug ausgebildet ist zu einem Verschließen des Kopfbereichs unter Erhalt eines geschlossenen Behälters. Ein bevorzugtes Verschließwerkzeug ist ein Siegelwerkzeug.In an embodiment 21 according to the invention, the device according to the embodiment 20 is configured, wherein the device further includes a closing station, wherein the closing station

1. a) is arranged downstream of the filling station, and
2. b) includes a further folding tool and a closing tool,

wherein the further folding tool is adapted to form a head portion of the container precursor by folding the sheet-like composite, wherein the closing tool is adapted to close the head portion to obtain a closed container. A preferred closing tool is a sealing tool.

In an embodiment 22 according to the invention, the device according to the embodiment 21 is configured, wherein the closing tool includes a further heating device, wherein the further Heating device is designed to increase a temperature of the sheet-like composite. A preferred further heating device is selected from the group consisting of a hot air blower, an ultrasonic sonotrode, an infrared radiator and a heating element. A preferred first heating element is an electrical heating element, preferably including a heating coil or a heating wire, or both. A particularly preferred further heating device includes an ultrasonic sonotrode.

In an embodiment 23 according to the invention, the device is designed according to one of the preceding embodiments, wherein the device is a filling machine.

In an embodiment 24 according to the invention, the device is designed according to one of the preceding embodiments, wherein the sheet-like composite further comprises a polymer outer layer, wherein the outer polymer layer superimposes the carrier layer on a side of the carrier layer facing away from the barrier layer. A preferred polymer outer layer comprises at least 50% by weight, preferably at least 60% by weight, more preferably at least 70% by weight, even more preferably at least 80% by weight, most preferably at least 90% by weight, each based on the weight of the polymer outer layer, an LDPE.

In an embodiment 25 according to the invention, the device is designed according to one of the preceding embodiments, wherein the sheet-like composite further comprises a polymer inner layer, wherein the inner polymer layer superimposes the barrier layer on a side of the barrier layer facing away from the carrier layer. The polymer inner layer preferably contains from 10 to 90% by weight, preferably from 25 to 90% by weight, more preferably from 30 to 80% by weight, based in each case on the total weight of the inner polymer layer, of a polymer prepared by means of a metallocene catalyst. In a further preferred embodiment, the polymer inner layer comprises a polymer blend, wherein the polymer blend to 10 to 90 wt .-%, preferably 25 to 90 wt .-%, more preferably 30 to 80 wt .-%, mPE and at least 10 wt .-%, preferably at least 15 wt .-%, more preferably at least 20 wt .-%, another polymer, each based on the total weight of the polymer blend includes.

In an embodiment 26 according to the invention, the device according to one of the preceding embodiments is configured, wherein the carrier layer has at least one hole, wherein the hole is covered at least with the barrier layer. Preferably, the hole is further covered with the polymer inner layer, the polymer intermediate layer or the polymer outer layer or with a combination of at least two thereof. Layers that cover the hole are referred to herein as hole topcoats. If at least two perforated cover layers are present, the perforated cover layers in the hole preferably form a layer sequence of layers interconnected in the hole.

In an embodiment 27 according to the invention, the device according to one of embodiments 24 to 26 is configured, wherein the carrier layer is superimposed on a side of the carrier layer facing away from the barrier layer with a paint application. The application of paint preferably comprises at least one colorant. The application of color preferably overlies the polymer outer layer on a side of the outer polymer layer facing away from the carrier layer.

In an embodiment 28 according to the invention, the device is configured according to one of the preceding embodiments, wherein the carrier layer comprises one selected from the group consisting of cardboard, paperboard, and paper, or a combination of at least two thereof.

1. a) Bereitstellen eines Behältervorläufers, beinhaltend einen flächenförmigen Verbund, wobei der flächenförmige Verbund eine Schichtfolge, beinhaltend als einander überlagernde Schichten in Richtung von einer Außenseite des flächenförmigen Verbunds zu einer Innenseite des flächenförmigen Verbunds
   1. i) eine Trägerschicht,
   2. ii) eine Barriereschicht, und
   3. iii) eine Polymerinnenschicht, beinhaltet;
2. b) Beaufschlagen der Innenseite des flächenförmigen Verbunds mit einem Keimzahlverringerungsmittel, wobei der Behältervorläufer sich in einem ersten Faltzustand befindet;
3. c) Überführen des Behältervorläufers von dem ersten Faltzustand in einen weiteren Faltzustand; und
4. d) Beaufschlagen der Innenseite des flächenförmigen Verbunds mit einem Keimzahlverringerungsmittel, wobei der Behältervorläufer sich in dem weiteren Faltzustand befindet.

A contribution to the fulfillment of at least one of the objects according to the invention is made by an embodiment 1 of a method A, comprising as method steps

1. a) providing a container precursor comprising a sheet-like composite, wherein the sheet-like composite, a layer sequence comprising as superimposed layers in the direction of an outer side of the sheet-like composite to an inner side of the sheet-like composite
   1. i) a carrier layer,
   2. ii) a barrier layer, and
   3. iii) an inner polymer layer;
2. b) subjecting the inside of the sheet composite to a nucleation reducing agent, the container precursor being in a first folded state;
3. c) transferring the container precursor from the first folding state to a further folding state; and
4. d) subjecting the inside of the sheet-like composite to a germ count reducing agent, wherein the container precursor is in the further folded state.

Here, the same or different Keimzahlverringerungsmittel can be used in process steps b) and d). Preferably, the same Keimzahlverringerungsmittel is used in the process steps b) and d). If the germ-reduction agent is a fluid, the application in process step b) or d) or in both preferably takes place as spraying.

In an embodiment 2 of the invention, the method A is configured according to its embodiment 1, wherein the germ-reduction agent is one selected from the group consisting of electromagnetic radiation, particle radiation, gas, liquid, and plasma, or a combination of at least two thereof ,

1. a. einen ersten Längsrand und einen weiteren Längsrand beinhaltet, wobei der erste Längsrand mit dem weiteren Längsrand eine Längsnaht des Behältervorläufers bildend verbunden ist;
2. b. in folgender Reihenfolge entlang der Außenseite des flächenförmigen Verbunds in Richtung von dem ersten Längsrand zu dem weiteren Längsrand
   1. i. eine erste Längsfaltung,
   2. ii. eine zweite Längsfaltung,
   3. iii. eine dritte Längsfaltung, und
   4. iv. eine vierte Längsfaltung beinhaltet,
   wobei in dem ersten Faltzustand des Behältervorläufers
   1. A) die erste Längsfaltung gekennzeichnet ist durch einen ersten Innenwinkel von weniger als 90°, bevorzugt weniger als 80°, bevorzugter weniger als 70°, bevorzugter weniger als 60°, am bevorzugtesten weniger als 50°,
   2. B) die zweite Längsfaltung gekennzeichnet ist durch einen zweiten Innenwinkel von mehr als 90°, bevorzugt mehr als 100°, bevorzugter mehr als 110°, bevorzugter mehr als 120°, am bevorzugtesten mehr als 130°,
   3. C) die dritte Längsfaltung gekennzeichnet ist durch einen dritten Innenwinkel von weniger als 90°, bevorzugt weniger als 80°, bevorzugter weniger als 70°, bevorzugter weniger als 60°, am bevorzugtesten weniger als 50°, und
   4. D) die vierte Längsfaltung gekennzeichnet ist durch einen vierten Innenwinkel von mehr als 90°; bevorzugt mehr als 100°, bevorzugter mehr als 110°, bevorzugter mehr als 120°, am bevorzugtesten mehr als 130°;
   wobei in dem weiteren Faltzustand des Behältervorläufers
   1. A. der erste Innenwinkel mehr als 90°, bevorzugt mehr als 100°, bevorzugter mehr als 110°, bevorzugter mehr als 120°, am bevorzugtesten mehr als 130°, ist,
   2. B. der zweite Innenwinkel weniger ist als 90°, bevorzugt weniger als 80°, bevorzugter weniger als 70°, bevorzugter weniger als 60°, am bevorzugtesten weniger als 50°,
   3. C. der dritte Innenwinkel mehr ist als 90°, bevorzugt mehr als 100°, bevorzugter mehr als 110°, bevorzugter mehr als 120°, am bevorzugtesten mehr als 130°, und
   4. D. der vierte Innenwinkel weniger ist als 90°, bevorzugt weniger als 80°, bevorzugter weniger als 70°, bevorzugter weniger als 60°, am bevorzugtesten weniger als 50°.

In an embodiment 3 according to the invention, the method A according to its embodiment 1 or 2 is configured, wherein the sheet-like composite

1. a. includes a first longitudinal edge and a further longitudinal edge, wherein the first longitudinal edge is connected to the further longitudinal edge forming a longitudinal seam of the container precursor;
2. b. in the following order along the outside of the sheet-like composite in the direction from the first longitudinal edge to the further longitudinal edge
   1. i. a first longitudinal fold,
   2. ii. a second longitudinal fold,
   3. iii. a third longitudinal fold, and
   4. iv. includes a fourth longitudinal fold,
   wherein in the first folded state of the container precursor
   1. A) the first longitudinal fold is characterized by a first inner angle of less than 90 °, preferably less than 80 °, more preferably less than 70 °, more preferably less than 60 °, most preferably less than 50 °,
   2. B) the second longitudinal fold is characterized by a second inner angle of more than 90 °, preferably more than 100 °, more preferably more than 110 °, more preferably more than 120 °, most preferably more than 130 °,
   3. C) the third longitudinal fold is characterized by a third internal angle of less than 90 °, preferably less than 80 °, more preferably less than 70 °, more preferably less than 60 °, most preferably less than 50 °, and
   4. D) the fourth longitudinal fold is characterized by a fourth inner angle of more than 90 °; preferably more than 100 °, more preferably more than 110 °, more preferably more than 120 °, most preferably more than 130 °;
   wherein in the further folded state of the container precursor
   1. A. the first internal angle is more than 90 °, preferably more than 100 °, more preferably more than 110 °, more preferably more than 120 °, most preferably more than 130 °,
   2. B. the second internal angle is less than 90 °, preferably less than 80 °, more preferably less than 70 °, more preferably less than 60 °, most preferably less than 50 °,
   3. C. the third internal angle is more than 90 °, preferably more than 100 °, more preferably more than 110 °, more preferably more than 120 °, most preferably more than 130 °, and
   4. D. the fourth internal angle is less than 90 °, preferably less than 80 °, more preferably less than 70 °, more preferably less than 60 °, most preferably less than 50 °.

• e) Bilden eines Bodenbereichs des Behältervorläufers durch Falten des flächenförmigen Verbunds,
• f) Verschließen des Bodenbereichs,
• g) Befüllen des Behältervorläufers mit einem Nahrungsmittel, und
• h) Verschließen des Behältervorläufers in einem Kopfbereich unter Erhalt eines geschlossenen Behälters

beinhaltet.In an embodiment 4 according to the invention, the method A according to one of its embodiments 1 to 3 is configured, wherein the method further method steps

• e) forming a bottom portion of the container precursor by folding the sheet composite,
• f) closing the floor area,
• g) filling the container precursor with a food, and
• h) closing the container precursor in a head region to obtain a closed container

includes.

In an embodiment 5 according to the invention, the method A according to its embodiment 4 is configured, wherein at least a part of the sheet-like composite during folding in process step e) a temperature in a range of 10 to 50 ° C, preferably 15 to 45 ° C, more preferably from 20 to 40 ° C, has.

In an embodiment 6 according to the invention, the method A according to its embodiment 4 or 5 is configured, wherein the closing in step f) or h) or in both includes a sealing, wherein the sealing by a selected from the group consisting of an irradiation, a contacting with a hot solid, stimulating a mechanical vibration and contacting with a hot gas, or by a combination of at least two of them.

In an embodiment 7 according to the invention, the method A according to one of its embodiments 4 to 6 is configured, wherein the method further includes a method step j), wherein the closed container is connected in step j) with an opening aid.

A contribution to the fulfillment of at least one of the objects according to the invention is afforded by an embodiment 1 of a closed container A obtainable by the method A according to one of its embodiments 4 to 7.

1. a) eine Keimzahlverringerungseinrichtung; und
2. b) eine Umfalteinrichtung;

wobei die Füllmaschine ausgebildet ist zu einem

1. a. Herstellen eines Behälters aus einem Behältervorläufer, beinhaltend einen flächenförmigen Verbund;
2. b. Befüllen des Behälters mit einem Nahrungsmittel unter Erhalt eines befüllten Behälters, und
3. c. Verschließen des befüllten Behälters unter Erhalt eines geschlossenen Behälters;

wobei der flächenförmige Verbund eine Schichtfolge, beinhaltend als einander überlagernde Schichten in Richtung von einer Außenseite des flächenförmigen Verbunds zu einer Innenseite des flächenförmigen Verbunds

1. a) eine Trägerschicht,
2. b) eine Barriereschicht, und
3. c) eine Polymerinnenschicht, beinhaltet;

wobei die Keimzahlverringerungseinrichtung angeordnet und ausgebildet ist zu einer Abgabe eines Keimzahlverringerungsmittels auf die Innenseite des flächenförmigen Verbunds zu einer Keimzahlverringerung; wobei die Umfalteinrichtung angeordnet und ausgebildet ist zu einem Überführen des Behältervorläufers von einem ersten Faltzustand in einen weiteren Faltzustand während der Keimzahlverringerung.A contribution to fulfilling at least one of the objects according to the invention is afforded by an embodiment 1 of a filling machine, comprising

1. a) a germ count reduction device; and
2. b) a folding device;

wherein the filling machine is formed into a

1. a. Producing a container from a container precursor comprising a sheet-like composite;
2. b. Filling the container with a food to obtain a filled container, and
3. c. Closing the filled container to obtain a closed container;

wherein the sheet-like composite a layer sequence, comprising as superimposed layers in the direction of an outer side of the sheet-like composite to an inner side of the sheet-like composite

1. a) a carrier layer,
2. b) a barrier layer, and
3. c) an inner polymer layer;

wherein the germ count reducing means is arranged and adapted to deliver a germ count reducing agent to the inside of the sheet-like composite to a germ count reduction; wherein the folding device is arranged and configured to transfer the container precursor from a first folded state to a further folded state during the germ count reduction.

A contribution to fulfilling at least one of the objects according to the invention is afforded by an embodiment 1 of a use A of the device according to the invention according to one of its embodiments 1 to 28 for sterilizing the container precursor on the inside of the sheet-like composite.

1. a) eine Trägerschicht,
2. b) eine Barriereschicht, und
3. c) eine Polymerinnenschicht,

beinhaltet.A contribution to fulfilling at least one of the objects according to the invention is afforded by an embodiment 1 of a use B of a folding device for transferring a container precursor, comprising a sheet-like composite, from a first folding state to a further folding state during sterilization of the container precursor, wherein the sheet-like composite comprises a layer sequence comprising as layers overlapping one another in the direction from an outer side of the sheet-like composite to an inner side of the sheet-like composite

1. a) a carrier layer,
2. b) a barrier layer, and
3. c) a polymer inner layer,

includes.

In an embodiment 2 according to the invention, the use B according to its embodiment 1 is designed, wherein the sterilization takes place in a filling machine.

In an embodiment 3 according to the invention, the use B according to its embodiment 1 or 2 is configured, wherein the sterilizing involves irradiating the inside of the sheet-like composite with an electromagnetic radiation or a particle radiation or both.

In an embodiment 3 according to the invention, the use B according to its embodiment 1 or 2 is designed, wherein the sterilizing includes applying to the inside of the sheet-like composite with a germ count reducing agent. Preferably, the application is an irradiation of the inside of the sheet-like composite with an electromagnetic radiation or a particle radiation or both.

1. a) einen ersten Längsrand und einen weiteren Längsrand beinhaltet, wobei der erste Längsrand mit dem weiteren Längsrand eine Längsnaht des Behältervorläufers bildend verbunden ist;
2. b) in folgender Reihenfolge entlang der Außenseite des flächenförmigen Verbunds in Richtung von dem ersten Längsrand zu dem weiteren Längsrand
   1. i) eine erste Längsfaltung,
   2. ii) eine zweite Längsfaltung,
   3. iii) eine dritte Längsfaltung, und
   4. iv) eine vierte Längsfaltung
   beinhaltet,

wobei in dem ersten Faltzustand des Behältervorläufers

1. a. die erste Längsfaltung gekennzeichnet ist durch einen ersten Innenwinkel von weniger als 90°, bevorzugt weniger als 80°, bevorzugter weniger als 70°, bevorzugter weniger als 60°, am bevorzugtesten weniger als 50°,
2. b. die zweite Längsfaltung gekennzeichnet ist durch einen zweiten Innenwinkel von mehr als 90°, bevorzugt mehr als 100°, bevorzugter mehr als 110°, bevorzugter mehr als 120°, am bevorzugtesten mehr als 130°,
3. c. die dritte Längsfaltung gekennzeichnet ist durch einen dritten Innenwinkel von weniger als 90°, bevorzugt weniger als 80°, bevorzugter weniger als 70°, bevorzugter weniger als 60°, am bevorzugtesten weniger als 50°, und
4. d. die vierte Längsfaltung gekennzeichnet ist durch einen vierten Innenwinkel von mehr als 90°, bevorzugt mehr als 100°, bevorzugter mehr als 110°, bevorzugter mehr als 120°, am bevorzugtesten mehr als 130°;

wobei in dem weiteren Faltzustand des Behältervorläufers

1. A) der erste Innenwinkel mehr als 90°, bevorzugt mehr als 100°, bevorzugter mehr als 110°, bevorzugter mehr als 120°, am bevorzugtesten mehr als 130°, ist,
2. B) der zweite Innenwinkel weniger ist als 90°, bevorzugt weniger als 80°, bevorzugter weniger als 70°, bevorzugter weniger als 60°, am bevorzugtesten weniger als 50°,
3. C) der dritte Innenwinkel mehr ist als 90°, bevorzugt mehr als 100°, bevorzugter mehr als 110°, bevorzugter mehr als 120°, am bevorzugtesten mehr als 130°, und
4. D) der vierte Innenwinkel weniger ist als 90°, bevorzugt weniger als 80°, bevorzugter weniger als 70°, bevorzugter weniger als 60°, am bevorzugtesten weniger als 50°.

In an embodiment 4 according to the invention, the use B according to one of its embodiments 1 to 3 is configured, wherein the sheet-like composite

1. a) includes a first longitudinal edge and a further longitudinal edge, wherein the first longitudinal edge is connected to the further longitudinal edge forming a longitudinal seam of the container precursor;
2. b) in the following order along the outside of the sheet-like composite in the direction from the first longitudinal edge to the further longitudinal edge
   1. i) a first longitudinal fold,
   2. ii) a second longitudinal fold,
   3. iii) a third longitudinal folding, and
   4. iv) a fourth longitudinal fold
   includes,

wherein in the first folded state of the container precursor

1. a. the first longitudinal fold is characterized by a first inner angle of less than 90 °, preferably less than 80 °, more preferably less than 70 °, more preferably less than 60 °, most preferably less than 50 °,
2. b. the second longitudinal fold is characterized by a second inner angle of more than 90 °, preferably more than 100 °, more preferably more than 110 °, more preferably more than 120 °, most preferably more than 130 °,
3. c. the third longitudinal fold is characterized by a third interior angle of less than 90 °, preferably less than 80 °, more preferably less than 70 °, more preferably less than 60 °, most preferably less than 50 °, and
4. d. the fourth longitudinal fold is characterized by a fourth inner angle of more than 90 °, preferably more than 100 °, more preferably more than 110 °, more preferably more than 120 °, most preferably more than 130 °;

wherein in the further folded state of the container precursor

1. A) the first internal angle is more than 90 °, preferably more than 100 °, more preferably more than 110 °, more preferably more than 120 °, most preferably more than 130 °,
2. B) the second internal angle is less than 90 °, preferably less than 80 °, more preferably less than 70 °, more preferably less than 60 °, most preferably less than 50 °,
3. C) the third internal angle is more than 90 °, preferably more than 100 °, more preferably more than 110 °, more preferably more than 120 °, most preferably more than 130 °, and
4. D) the fourth internal angle is less than 90 °, preferably less than 80 °, more preferably less than 70 °, more preferably less than 60 °, most preferably less than 50 °.

Features which are described as preferred in a category according to the invention are also preferred in an embodiment of the other categories according to the invention.

container precursor

A preferred container precursor is coat-shaped. Here, the container precursor preferably has a shape of a lateral surface of a prism. A preferred prism is a cuboid.

Germ count reducer / Keimzahlverringerungsmittel

In principle, all agents suitable for reducing a number of living microorganisms, including their resting stages, such as spores, on the inside of the sheet-like composite, are suitable as germ count reducing agents. Here, in the field of food container manufacturing approved means are preferred. A preferred particle radiation as a nucleation reducing agent is an electron beam. A preferred electromagnetic radiation as a germ count reducing agent is one selected from the group consisting of ultraviolet radiation, X-radiation, and gamma radiation, or a combination of at least two thereof. Further, the germ count reducing agent may be a fluid, in particular a gas or a liquid. Preferred fluids are chemical sterilization agents, in particular for wet antiseptic sterilization or dry antiseptic sterilization, or both. As the liquid, hydrogen peroxide, dissolved ozone, peroxyacetic acid and combinations of at least two of the above are preferred. As the gas, hydrogen peroxide, ozone and a combination of both are preferred. In a preferred embodiment, the germ count reducing agent is a combination of a gas and a liquid. In this case, the inner side is preferably subjected successively to the liquid and the gas in this or in the reverse order of succession. Another preferred germ count reducing agent is a plasma. A preferred plasma is obtainable by ionizing one of the aforementioned gases. Particularly preferred as the germ number reducing agent is electromagnetic radiation or particle radiation, or both, most preferably particle radiation. Preferably, the germ count reduction means is one selected from the group consisting of an electromagnetic radiation source, a particle radiation source, and a plasma generator, or a combination of at least two thereof.

Layers of the sheet-like composite

The layers of the layer sequence are connected to one another. Two layers are bonded together when their adhesion to each other goes beyond van der Waals attractions. Coalesced layers are preferably one selected from the group consisting of being sealed together, adhered together, and pressed together, or a combination of at least two thereof. Unless otherwise stated, the layers can follow one another indirectly in one layer sequence, ie with one or at least two intermediate layers, or directly, that is to say without an intermediate layer. This is especially the case with the formulation in which one layer overlays another layer. A formulation in which a layer sequence includes enumerated layers means that at least the indicated layers are present in the stated order. This formulation does not necessarily mean that these layers follow one another directly. A formulation in which two layers adjoin one another means that these two layers follow one another directly and thus without an intermediate layer. However, this formulation does not say anything about whether the two layers are connected or not. Rather, these two layers can be in contact with each other.

polymer layers

In the following, the term "polymer layer" refers in particular to the polymer inner layer, the polymer intermediate layer and the polymer outer layer. A preferred polymer is a polyolefin. The polymer layers may have further constituents. The polymer layers are preferably applied or applied in an extrusion process in the sheet-like composite material. The other constituents of the polymer layers are preferably constituents which do not adversely affect the behavior of the polymer melt when applied as a layer. The other ingredients may, for example, inorganic Compounds, such as metal salts or other plastics, such as other thermoplastics. However, it is also conceivable that the further constituents are fillers or pigments, for example carbon black or metal oxides. Suitable thermoplastics for the further constituents in particular those into consideration, which are easily processed by a good extrusion behavior. Among these are polymers obtained by chain polymerization, especially polyesters or polyolefins, with cyclic olefin copolymers (COC), polycyclic olefin copolymers (POC), especially polyethylene and polypropylene, being particularly preferred, and polyethylene being most preferred. Among the polyethylenes, HDPE (high density polyethylene), MDPE (medium density polyethylene), LDPE (low density polyethylene), LLDPE (linear low density polyethylene) and VLDPE (very low density polyethylene) and mixtures of at least two are preferred. It is also possible to use mixtures of at least two thermoplastics. Suitable polymer layers have a melt flow rate (MFR) in a range of 1 to 25 g / 10 min, preferably in a range of 2 to 20 g / 10 min and more preferably in a range of 2.5 to 15 g / 10 minutes, and a density in a range of 0.890 g / cm ³ to 0.980 g / cm ³ , preferably in a range of 0.895 g / cm ³ to 0.975 g / cm ³ , and more preferably in a range of 0.900 g / cm ³ to 0.970 g / cm ³ . The polymer layers preferably have at least a melting temperature in a range of 80 to 155 ° C, preferably in a range of 90 to 145 ° C, and more preferably in a range of 95 to 135 ° C.

Polymer inner layer

The inner polymer layer is based on thermoplastic polymers, wherein the inner polymer layer may include a particulate inorganic solid. However, it is preferred that the polymer inner layer contains at least 70 wt .-%, preferably at least 80 wt .-% and particularly preferably at least 95 wt .-%, each based on the total weight of the inner polymer layer, a thermoplastic polymer. Preferably, the polymer or the polymer mixture of the inner polymer layer has a density (according to ISO 1183-1: 2004 ) in a range of 0.900 to 0.980 g / cm ³ , more preferably in a range of 0.900 to 0.960 g / cm ^3, and most preferably in a range of 0.900 to 0.940 g / cm ³ . Preferably, the polymer is a polyolefin, mpolymer or a combination of both.

backing

As carrier layer, any material suitable for this purpose can be used, which has sufficient strength and rigidity to give stability to the container so that the container essentially retains its shape in the filled state. This is in particular a necessary feature of the carrier layer, since the invention relates to the technical field of dimensionally stable containers. Such dimensionally stable containers are basically different from bags and bags, which are usually made of thin films. In addition to a number of plastics, plant-based pulps, in particular pulps, preferably glued, bleached and / or unbleached pulps are preferred, with paper and board being particularly preferred. Thus, a preferred carrier layer includes a plurality of fibers. The basis weight of the carrier layer is preferably in a range of from 120 to 450 g / m ² , more preferably in a range of from 130 to 400 g / m ^2, and most preferably in a range of from 150 to 380 g / m ² . A preferred paperboard generally has a single-layer or multi-layer structure and may be coated on one or both sides with one or more top layers. Furthermore, a preferred board has a residual moisture of less than 20 wt .-%, preferably from 2 to 15 wt .-% and particularly preferably from 4 to 10 wt .-% based on the total weight of the carton. A particularly preferred paperboard has a multilayer construction. Further preferably, the cardboard has on the surface facing the environment at least one, but more preferably at least two layers of a cover layer, which is known in the art as "stroke". Furthermore, a preferred paperboard has a Scott Bond value (according to Tappi T403um) in a range from 100 to 360 J / m ² , preferably from 120 to 350 J / m ² and particularly preferably from 135 to 310 J / m ² . The above-mentioned ranges make it possible to provide a composite from which a container with high density, can be folded easily and in small tolerances.

The carrier layer is characterized by a bending resistance, which can be measured with a bending meter. As a bending meter, a code 160 is used by Lorentzen & Wettre, Sweden. The carrier layer preferably has a bending resistance in a range of 80 to 550 mN in a first direction. In the case of a carrier layer containing a plurality of fibers, the first direction is preferably an orientation direction of the fibers. A support layer including a plurality of fibers preferably further has a bending resistance in a range of 20 to 300 mN in a second direction perpendicular to the first direction. For measuring the bending resistance with the The samples used in the above measuring device have a width of 38 mm and a clamping length of 50 mm. A preferred sheet-like composite with the carrier layer has a bending resistance in the first direction in a range of 100 to 700 mN. Further preferably, the aforementioned sheet-like composite in the second direction has a bending resistance in a range of 50 to 500 mN. Also, the samples of the sheet composite used for measurement with the above meter have a width of 38 mm and a gripping length of 50 mm.

barrier layer

1. a. einer Kunststoffbarriereschicht;
2. b. einer Metallschicht;
3. c. einer Metalloxidschicht; oder
4. d. einer Kombination von mindestens zwei aus a. bis c.

As the barrier layer, any material suitable for this purpose can be used which has a sufficient barrier effect, in particular to oxygen. The barrier layer is preferably selected from

1. a. a plastic barrier layer;
2. b. a metal layer;
3. c. a metal oxide layer; or
4. d. a combination of at least two from a. to c.

Is the barrier layer according to alternative a. a plastic barrier layer, this preferably contains at least 70 wt .-%, more preferably at least 80 wt .-% and most preferably at least 95 wt .-% of at least one plastic, the specialist for this purpose, in particular for packaging container suitable aroma or Gas barrier properties is known. As plastics, in particular thermoplastics, here N or O-bearing plastics come into consideration either individually or in mixtures of two or more. According to the invention, it may prove to be advantageous if the plastic barrier layer has a melting temperature in a range of more than 155 to 300 ° C, preferably in a range of 160 to 280 ° C and more preferably in a range of 170 to 270 ° C.

More preferably, the plastic barrier layer has a basis weight in a range of 2 to 120 g / m ² , preferably in a range of 3 to 60 g / m ² , more preferably in a range of 4 to 40 g / m ² and more preferably of 6 to 30 g / m ² . Further preferably, the plastic barrier layer of melts, for example by extrusion, in particular layer extrusion available. In addition, the plastic barrier layer may also be introduced by lamination into the sheet-like composite. It is preferred that a film is incorporated in the sheet-like composite. According to another embodiment, plastic barrier layers obtainable by deposition from a solution or dispersion of plastics may also be selected.

Suitable polymers are preferably those which have a weight average molecular weight, as determined by gel permeation chromatography (GPC) by means of light scattering, in a range from 3 × 10 ³ to 1 × 10 ⁷ g / mol, preferably in a range from 5 × 10 5 ³ to 1 x 10 ⁶ g / mol, and more preferably in a range of 6 x 10 ³ to 1 x 10 ⁵ g / mol. Suitable polymers are, in particular, polyamide (PA) or polyethylene-vinyl alcohol (EVOH) or a mixture thereof.

Among the polyamides, all PAs which appear suitable to the person skilled in the art for the use according to the invention are suitable. Particular mention may be made here of PA 6, PA 6.6, PA 6.10, PA 6.12, PA 11 or PA 12 or a mixture of at least two thereof, with PA 6 and PA 6.6 being particularly preferred and PA 6 furthermore being preferred. PA 6 is commercially available, for example under the trade names Akulon ^®, Durethan ^® and Ultramid ^®. Suitable addition, amorphous polyamides such as MXD6, Grivory ^® and Selar ^® PA. More preferably, the PA has a density in a range of 1.01 to 1.40 g / cm ³ , preferably in a range of 1.05 to 1.30 g / cm ^3, and more preferably in a range of 1 , 08 to 1.25 g / cm ³ . Further, it is preferable that the PA has a viscosity number in a range of 130 to 250 ml / g, and preferably in a range of 140 to 220 ml / g.

• - ein Ethylengehalt in einem Bereich von 20 bis 60 mol-%, bevorzugt von 25 bis 45 mol- %;
• - eine Dichte in einem Bereich von 1,0 bis 1,4 g/cm³, bevorzugt von 1,1 bis 1,3 g/cm³;
• - einen Schmelzpunkt in einem Bereich von mehr als 155 bis 235 °C, bevorzugt von 165 bis 225 °C;
• - einen MFR-Wert (210 °C/2,16kg, wenn T_S(EVOH)<230 °C; 230 °C/2,16kg, wenn 210 °C<T_S(EVOH)<230 °C) in einem Bereich von 1 bis 25 g/10min, bevorzugt von 2 bis 20 g/10min;
• - eine Sauerstoffpermeationsrate in einem Bereich von 0,05 bis 3,2 cm³·20µm/m²·day·atm, bevorzugt in einem Bereich von 0,1 bis 1 cm³·20µm/m²·day·atm.

Suitable EVOHs are all EVOH suitable for the use according to the invention. Examples of this are commercially available under the trade names EVAL ™ from EVAL Europe NV, Belgium, in a variety of different designs, such as the EVAL ™ F104B or EVAL ™ LR171B grades. Preferred EVOH have at least one, two, several or all of the following properties:

• - an ethylene content in a range of 20 to 60 mol%, preferably 25 to 45 mol%;
• a density in a range of 1.0 to 1.4 g / cm ³ , preferably 1.1 to 1.3 g / cm ³ ;
• a melting point in a range greater than 155 to 235 ° C, preferably from 165 to 225 ° C;
• - an MFR value (210 ° C / 2.16kg if T _{S (EVOH)} <230 ° C; 230 ° C / 2.16kg if 210 ° C <T _{S (EVOH)} <230 ° C) in a Range from 1 to 25 g / 10 min, preferably from 2 to 20 g / 10 min;
• an oxygen permeation rate in a range of 0.05 to 3.2 cm ^3. 20 μm / m ² .day. atm, preferably in a range of 0.1 to 1 cm ^3. 20 μm / m ² .day.atm.

Preferably, at least one polymer layer, more preferably the inner polymer layer, or preferably all polymer layers have a melting temperature below the melting temperature of the barrier layer. This is especially true when the barrier layer is formed of polymer. Here, the melting temperatures of the at least one, in particular the polymer inner layer, and the melting temperature of the barrier layer preferably differ by at least 1 K, more preferably by at least 10 K, even more preferably by at least 50 K, more preferably at least 100 K. The temperature difference should preferably only are chosen so high that it does not melt the barrier layer, in particular not to a melting of the plastic barrier layer, during folding occurs.

According to alternative b. the barrier layer is a metal layer. In principle, all layers with metals which are known to the person skilled in the art and can provide high light and oxygen impermeability are suitable as the metal layer. According to a preferred embodiment, the metal layer may be present as a foil or as a deposited layer, e.g. after a physical vapor deposition. The metal layer is preferably an uninterrupted layer. According to a further preferred embodiment, the metal layer has a thickness in a range from 3 to 20 μm, preferably in a range from 3.5 to 12 μm and particularly preferably in a range from 4 to 10 μm.

Preferably selected metals are aluminum, iron or copper. As the iron layer, a steel layer, for example in the form of a film may be preferred. Further preferably, the metal layer is a layer with aluminum. The aluminum layer may suitably consist of an aluminum alloy, for example AlFeMn, AlFe1.5Mn, AlFeSi or AlFeSiMn. The purity is usually 97.5% and higher, preferably 98.5% and higher, based in each case on the entire aluminum layer. In a particular embodiment, the metal layer consists of an aluminum foil. Suitable aluminum foils have a ductility of more than 1%, preferably more than 1.3% and more preferably more than 1.5%, and a tensile strength of more than 30 N / mm ² , preferably more than 40 N / mm ² and more preferably more than 50 N / mm ² . Suitable aluminum foils in the pipette test show a droplet size of more than 3 mm, preferably more than 4 mm and particularly preferably more than 5 mm. Suitable alloys for producing aluminum layers or foils are commercially available under the designations EN AW 1200, EN AW 8079 or EN AW 8111 from Hydro Aluminum Deutschland GmbH or Amcor Flexibles Singen GmbH. In the case of a metal foil as a barrier layer, an adhesion promoter layer can be provided on one and / or both sides of the metal foil between the metal foil and a nearest polymer layer.

Further preferred as a barrier layer according to alternative c. a metal oxide layer may be selected. Suitable metal oxide layers are all metal oxide layers which are familiar to the person skilled in the art and which appear suitable in order to achieve a barrier action against light, vapor and / or gas. Particularly preferred are metal oxide layers based on the previously mentioned metals aluminum, iron or copper, as well as those metal oxide layers based on titanium or silicon oxide compounds. A metal oxide layer is exemplified by vapor deposition of a plastic layer, for example, an oriented polypropylene film with metal oxide. A preferred method for this is physical vapor deposition.

According to a further preferred embodiment, the metal layer of the metal oxide layer may be present as a layer composite of one or more plastic layers with a metal layer. Such a layer is obtainable, for example, by vapor-depositing a plastic layer, for example an oriented polypropylene film, with metal. A preferred method for this is physical vapor deposition.

Adhesion / adhesion promoter layer

Between layers which do not adjoin one another directly, there may be an adhesion promoter layer, preferably between the barrier layer and the inner polymer layer. As a bonding agent in An adhesion promoter layer can be any plastics which, by functionalization by means of suitable functional groups, are suitable for producing a solid compound by forming ionic bonds or covalent bonds to a surface of a respectively adjacent layer. Preference is given to functionalized polyolefins obtained by co-polymerization of ethylene with acrylic acids such as acrylic acid, methacrylic acid, crotonic acid, acrylates, acrylate derivatives or double bond-bearing carboxylic acid anhydrides, for example maleic anhydride, or at least two thereof. Among these, polyethylene-maleic anhydride graft polymer (GUCH), ethylene-acrylic acid copolymers (EAA) or ethylene-methacrylic acid copolymers (EMAA) are preferred, which, for example, under the trade names Bynel ^® and Nucrel ^® 0609HSA by DuPont or Escor ^® 6000ExCo from ExxonMobil Chemicals to be expelled.

According to the invention, it is preferred that the adhesion between a carrier layer, a polymer layer or a barrier layer to the respective next layer is at least 0.5 N / 15 mm, preferably at least 0.7 N / 15 mm and particularly preferably at least 0.8 N / 15 mm , In one embodiment according to the invention, it is preferred that the adhesion between a polymer layer and a carrier layer is at least 0.3 N / 15 mm, preferably at least 0.5 N / 15 mm and particularly preferably at least 0.7 N / 15 mm. Furthermore, it is preferred that the adhesion between a barrier layer and a polymer layer is at least 0.8 N / 15 mm, preferably at least 1.0 N / 15 mm and particularly preferably at least 1.4 N / 15 mm. In the event that a barrier layer indirectly follows a polymer layer via an adhesion promoter layer, it is preferred that the adhesion between the barrier layer and the adhesion promoter layer is at least 1.8 N / 15 mm, preferably at least 2.2 N / 15 mm and particularly preferably at least 2, 8 N / 15mm. In a particular embodiment, the adhesion between the individual layers is so strong that it comes to a tearing of a carrier layer in the adhesion test, in the case of a carton as a carrier layer to a so-called cardboard fiber tear.

polyolefin

A preferred polyolefin is a polyethylene (PE) or a polypropylene (PP) or both. A preferred polyethylene is one selected from the group consisting of an LDPE, an LLDPE, and a HDPE, or a combination of at least two thereof. Another preferred polyolefin is a polyolefin (polyolefin made by a metallocene catalyst). Suitable polyethylenes have a melt flow rate (MFI - melt flow rate = MFR) in a range of 1 to 25 g / 10 min, preferably in a range of 2 to 20 g / 10 min and more preferably in a range of 2.5 to 15 g / 10 min, and a density in a range of 0.910 g / cm ³ to 0.935 g / cm ³ , preferably in a range of 0.912 g / cm ³ to 0.932 g / cm ³ , and more preferably in a range of 0.915 g / cm ³ to 0.930 g / cm ³ .

mPolymer

An m-polymer is a polymer made by a metallocene catalyst. A metallocene is an organometallic compound in which a central metal atom is located between two organic ligands, such as cyclopentadienyl ligands. A preferred m-polymer is an m-polyolefin, preferably a m-polyethylene or a m-polypropylene or both. A preferred m-polyethylene is one selected from the group consisting of a mLDPE, a mLLDPE, and a mHDPE, or a combination of at least two thereof.

extrude

In the extrusion, the polymers are usually heated to temperatures of 210 to 350 ° C, measured on the molten polymer film below the exit at the extruder die. The extrusion can be carried out by means of extrusion tools known to the person skilled in the art and available commercially, such as, for example, extruders, extruder screws, feedblock, etc. At the end of the extruder is preferably an opening through which the polymer melt is pressed. The orifice may be of any shape that allows the polymer melt to be extruded. For example, the opening may be angular, oval or round. The opening preferably has the shape of a slot of a funnel. After the melt layer has been applied to the substrate layer by the method described above, the melt layer is allowed to cool for the purpose of thermosetting, this cooling preferably by quenching via contact with a surface having a temperature in the range of 5 to 50 ° C, is more preferably maintained in a range of 10 to 30 ° C. Subsequently, at least the flanks are separated from the surface. The separation can be carried out in any manner which is familiar and suitable to a person skilled in the art in order to separate off the flanks quickly, as accurately and cleanly as possible. Prefers the separation by means of a knife, laser beam or water jet, or a combination of two or more thereof, wherein the use of knives, especially a top knife, is particularly preferred.

food

The sheet-like composite and the container precursor in the context of the invention are preferably designed for producing a food container. Furthermore, the closed container according to the invention is preferably a food container. Suitable foods are all foods known to the person skilled in the art for human consumption and also animal feed. Preferred foods are liquid above 5 ° C, for example, dairy products, soups, sauces, non-carbonated beverages.

colorants

Colorant is after DIN 55943: 2001-10 the collective term for all coloring substances, in particular for dyes and pigments. A preferred colorant is a pigment. A preferred pigment is an organic pigment. In the context of the invention considerable pigments are in particular those in the DIN 55943: 2001-10 and the pigments mentioned in "Industrial Organic Pigments, Third Edition." (Willy Herbst, Klaus Hunger Copyright © 2004 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, ISBN: 3-527-30576-9). A pigment is a colorant which is preferably insoluble in the application medium. A dye is a colorant which is preferably soluble in the application medium.

container

The closed container according to the invention can have a multiplicity of different shapes, but a substantially cuboid-shaped structure is preferred. Furthermore, the container may be formed over its entire surface from the sheet-like composite, or have a 2- or multi-part structure. In a multi-part construction, it is conceivable that in addition to the sheet-like composite, other materials are used, such as plastic, which can be used in particular in the head or bottom portions of the container. In this case, however, it is preferred that the container is constructed to be at least 50%, particularly preferably at least 70% and moreover preferably at least 90% of the area of the sheet-like composite. Furthermore, the container may have a device for emptying the contents. This can for example be formed from a polymer or mixture of polymers and applied to the outside of the container. It is also conceivable that this device is integrated by "direct injection molding" in the container. According to a preferred embodiment, the container according to the invention at least one, preferably from 4 to 22 or more edges, more preferably from 7 to 12 edges. As an edge in the context of the present invention, areas are understood to arise when folding a surface. As exemplary edges are the elongated contact areas of each two wall surfaces of the container, also referred to herein as longitudinal edges, called. In the container, the container walls preferably represent the surfaces of the container framed by the edges. Preferably, the interior of a container according to the invention comprises a foodstuff. Preferably, the closed container does not include a lid or bottom not integrally formed with the sheet-like composite, or both. A preferred closed container includes a food.

hole

The at least one hole provided in the carrier layer according to preferred embodiments may have any shape known to those skilled in the art and suitable for various closures or drinking straws. Often, the holes in the supervision curves on. Thus, the holes may be substantially circular, oval, elliptical or teardrop-shaped. The shape of the at least one hole in the carrier layer usually also produces the shape of the opening, which is produced either by an openable closure connected to the container, through which the container contents are dispensed from the container after opening, or by a drinking straw in the container is predetermined. Thus, the openings of the opened container often have shapes that are comparable or even equal to the at least one hole in the carrier layer. Embodiments of the single hole sheet composite are primarily for releasing the food in the container made of the sheet composite. Another hole may be provided in particular for ventilating the container during the release of the food.

In connection with the covering of the at least one hole of the carrier layer, it is preferred that the hole top layers are at least partially, preferably at least 30%, preferably at least 70% and more preferably at least 90% of the surface formed by the at least one hole interconnected. It is furthermore preferred that the perforated cover layers are connected to one another at the edges of the at least one hole and preferably bear against the edges in order to achieve improved tightness over a connection extending over the entire hole surface. Frequently, the hole-covering layers are connected to each other via the region formed by the at least one hole in the carrier layer. This leads to a good tightness of the container formed from the composite and thus to a desired high durability of stored in the container food.

Opening / opening help

In most cases, the opening of the container is produced by at least partially destroying the perforated cover layers covering the at least one hole. This destruction can be done by cutting, pushing into the container or pulling out of the container. Destroying can take place by means of an opening aid connected to the container and arranged in the region of the at least one hole, usually above the at least one hole, for example also by a drinking straw which is pushed through the perforated cover layers. Furthermore, in an embodiment according to the invention, it is preferable for an opening aid to be provided in the region of the at least one hole. In this case, it is preferable for the opening aid to be provided on the surface of the composite which represents the outside of the container. Furthermore, the container preferably includes a closure, for example a lid, on the outside of the container. It is preferred that the closure covers the hole at least partially, preferably completely. Thus, the closure protects the less-durable hole-covering layers from harmful mechanical action compared to the areas outside the at least one hole. To open the hole covering layers covering the at least one hole, the closure often includes the opening aid. As such, for example, hooks for tearing at least a portion of the Lochdeckschichten, edges or cutting for cutting the Lochdeckschichten or mandrels for pushing through the Lochdeckschichten or a combination of at least two thereof are suitable. These opening aids are often mechanically coupled with a screw cap or a cap of the closure, for example via a hinge, so that the opening aid with the operation of the screw cap or the cap on the Lochdeckschichten act to open the closed container. Occasionally in the literature such closure systems, including a hole covering composite layers, this hole overlapping openable closures with opening aids referred to as "overcoated holes" with "applied fitments".

inking

An application of paint comprises at least one colorant, preferably in a proportion in a range from 5 to 15 wt .-%, more preferably from 8 to 15 wt .-%, more preferably from 13 to 15 wt .-%, each based on the weight of the paint , A preferred inking consists of a plurality of, preferably printed, halftone dots. Preferably, the paint application forms a decor. Another preferred color application further includes an application medium. A preferred application medium is an organic medium. A preferred organic medium is an organic binder. A preferred organic binder is a thermoplastic. A preferred thermoplastic is polyvinyl butyral (PVB). The application of paint preferably adjoins the outer polymer layer, the outer polymer layer preferably being adjacent to the carrier layer. Preferably, the inking is obtainable by printing. A preferred printing in this case is an offset printing or a gravure printing or both. A further preferred inking is superimposed on a side of the paint application which is remote from the carrier layer by no further layer of the layer sequence.

Folding the sheet-like composite

The folding of the sheet-like composite is preferably carried out in a temperature range of 10 to 50 ° C, preferably in a range of 15 to 45 ° C and more preferably in a range of 20 to 40 ° C. This can be achieved by having the sheet-like composite at a temperature in the above ranges. Furthermore, it is preferred that a folding tool, preferably together with the sheet-like composite, has a temperature in the above range. For this purpose, the folding tool preferably does not have a heater. Rather, the folding tool or even the sheet-like composite or both can be cooled. Furthermore, it is preferred that folding takes place at a temperature of at most 50 ° C. as "cold folding" and bonding at above 50 ° C., preferably above 80 ° C. and particularly preferably above 120 ° C. as "heat sealing". The above conditions and in particular temperatures preferably also apply in the vicinity of the folding, for example in the housing of the folding tool.

According to the invention, "folds" are understood to mean a process in which an elongate bend forming an angle is preferably produced in the folded planar composite by means of a folding edge of a folding tool. For this purpose, often two adjacent surfaces of a sheet-like composite are bent more and more on each other. As a result of the folding, at least two adjoining folding surfaces are created, which can then be joined at least in partial regions to form a container region. According to the invention, the connection can be effected by any measure which appears suitable to the person skilled in the art and which makes possible a connection which is as gas- and liquid-tight as possible. The bonding can be done by sealing or gluing or a combination of both. In the case of sealing, the connection is created by means of a liquid and its solidification. In the case of gluing, chemical bonds are formed between the interfaces or surfaces of the two articles to be joined, creating the bond. It is often advantageous when sealing or gluing to press together the surfaces to be sealed or adhesive.

MEASUREMENT METHODS

The following measurement methods were used in the invention. Unless otherwise stated, measurements were taken at an ambient temperature of 23 ° C, an ambient air pressure of 100 kPa (0.986 atm) and a relative humidity of 50%.

MFR

The MFR value is measured in accordance with standard ISO 1133 (unless otherwise stated at 190 ° C and 2.16 kg).

density

The density is measured according to ISO 1183-1.

melting temperature

• - Temperatur Indium - Onset Temperatur,
• - Schmelzwärme Indium,
• - Temperatur Zink - Onset Temperatur.

The melting temperature is determined by the DSC method ISO 11357-1, -5. The device calibration is carried out according to the manufacturer's instructions on the basis of the following measurements:

• - temperature indium - onset temperature,
• - heat of fusion indium,
• - Temperature zinc - Onset temperature.

oxygen permeation

The oxygen permeation rate is determined according to standard ISO 14663-2 Annex C at 20 ° C and 65% relative humidity.

Viscosity number of PA

The viscosity number of PA is according to the norm DIN EN ISO 307 (2013-08) measured in 95% sulfuric acid.

Molecular weight distribution

The molecular weight distribution after gel permeation chromatography by means of light scattering: ISO 16014-3 / -5 (2009-09).

Moisture content of the cardboard

The moisture content of the board is measured according to the standard ISO 287: 2009.

liability

To determine the adhesion of two adjacent layers, these are fixed on a 90 ° peel test device, for example the company Instron "German rotating wheel fixture", on a rotatable roller, the during the measurement turns at 40 mm / min. The samples were previously cut into 15 mm wide strips. On one side of the sample, the layers are released from each other and clamped the detached end in a vertically upward traction device. On the pulling device, a measuring device for determining the tensile force is attached. When turning the roller, the force needed to separate the layers is measured. This force corresponds to the adhesion of the layers to each other and is given in N / 15 mm. The separation of the individual layers, for example, mechanically, or by a targeted pretreatment, for example by soaking the sample for 3 min in 60 ° C warm, 30% acetic acid take place.

Detection of colorants

Detection of organic colorants may be carried out according to the methods described in "Industrial Organic Pigments, Third Edition." (Willy Herbst, Klaus Hunger Copyright © 2004 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim ISBN: 3-527-30576-9) be performed.

durability

For the determination of the durability of the orange juice in the containers prepared according to the examples and comparative examples, several containers were filled and prepared for each example and comparative example. These containers were stored under the same conditions and a sample container was opened at predefined time intervals for each example and comparative example. If the Organgensaft contained mold on the surface, fermentation bubbles or a characteristic odor smell the durability had expired. In this case, the shelf life was set to the time of the previous sample container opening.

palatability

To determine the deterioration of a food stored in a container, the container filled with the food was stored at 25 ° C for 90 days. In parallel, the same foodstuff was stored in glass bottles in a darkroom at the same temperature for the same period of time. After the storage period, the taste of the stored food was checked by a panel of 10 trained test persons and the differences in taste between the food to be tested and the food stored in glass faults were evaluated.

The invention will be further illustrated by way of examples and drawings, the examples and drawings not limiting the invention. Furthermore, unless otherwise indicated, the drawings are not to scale.

laminate structure

For the example (inventive) and the comparative example (not according to the invention), laminates with the following layer structure and layer sequence were produced by a layer extrusion process. Table 1: general structure of the example and comparison example laminates layer designation material Basis weight [g / m ² ] Polymer outer layer LDPE 19N430 from Ineos GmbH, Cologne 15 backing Carton: Stora Enso Natura T Duplex double line, Scott-Bond 200 J / m ² , residual moisture 7.5% 210 Polymer interlayer LDPE 19N430 from Ineos GmbH, Cologne 18 barrier layer Aluminum foil EN AW 8079 from Hydro Aluminum Deutschland GmbH here: thickness 6 μm Bonding layer A co-extrudate (1) Escor 6000 HSC (1) - 4 from Exxon Mobil Corporation and (2) LDPE 19N430 from Ineos GmbH, Cologne (2) - 22 Polymer inner layer Blend of (1) 65% by weight LDPE 19N430 from Ineos Köln GmbH and (2) 35% by weight Eltex 1315 AZ from Ineos Köln GmbH 10

Producing laminate and container precursor

The production of the laminate takes place with an extrusion coating plant of Davis Standard. Here, the extrusion temperature is in a range of about 280 to 310 ° C. Deviations in the temperatures of ± 6 ° C are within the normal tolerance. Deviations in the basis weights of ± 3 g / m ² are within the normal tolerance. In the first step, the carrier layer is provided with a hole for each container to be produced and then the polymer outer layer is applied to the carrier layer. In the second step, the barrier layer is applied together with the first polymer layer on the previously coated with the polymer outer layer carrier layer. Subsequently, the adhesion promoter layer and the polymer inner layer is coextruded onto the barrier layer. To apply the individual layers, the polymers are melted out in an extruder. When applying a polymer in a layer, the resulting melt is transferred via a feed block in a nozzle and extruded onto the carrier layer.

Grooves, in particular longitudinal grooves, are introduced into the laminate obtained in this way. Furthermore, the grooved laminate is cut into blanks for individual containers, each blank including one of the above holes. By folding along the 4 longitudinal grooves of each blank 4 longitudinal folds are obtained. Further, overlapping fold surfaces are sealed together to form a shell-shaped container precursor of each of FIG 7 to get shown shape.

Sterilizing and container manufacturing

The coats obtained above are further packed in a standard CFA 712, SIG Combibloc, Linnich closed-cell and food-filled container 8th processed form processed. For refolding according to the invention during the sterilization of the jacket in the filling machine, the filling machine has been modified as described below. For sterilization, a rod-shaped germ number reduction device is inserted into the shell. Which sterilizing agent was used in the respective example or comparative example is shown in Table 2 below. In the case of electron radiation as a sterilizing agent, the nucleation reducing means is according to FIG 1a ) equipped with an electron source. In the case of hydrogen peroxide, the nucleation device is provided with leads and a spray head for spraying the liquid hydrogen peroxide onto the inside of the laminate. In the examples according to the invention, the respective jacket is folded over during the sterilization of the inside by a folding device. Here, the folding occurs as in the 1a ) and 1b). Furthermore, the folding device is as below in connection with the 1a ) and 1b) described. In the comparative examples, no folding occurs. Further parameters of the sterilization and refolding can be found in Tables 3 to 5 below for the respective examples and comparative examples.

After sterilization, a bottom area is created by folding the laminate and sealed by heat sealing. This creates an open-topped cup. The cup is filled with orange juice. By folding and ultrasonic sealing, the head portion of the cup containing the hole is closed to obtain a closed container. On this container, an opening aid is attached in the area of the hole and so a closed container as in 8th shown. Table 2: Sterilizers used for the Examples and Comparative Examples sterilant example 1 electron irradiation Example 2 hydrogen peroxide Example 3 electron irradiation Example 4 electron irradiation Example 5 electron irradiation Example 6 electron irradiation Comparative Example 1 electron irradiation Comparative Example 2 electron irradiation Comparative Example 3 electron irradiation Comparative Example 4 electron irradiation Comparative Example 5 hydrogen peroxide Comparative Example 6 Which is hydrogen peroxide

evaluation

Table 3: Evaluation of container production with sterilization for the examples and comparative examples with sterilization by electron irradiation high durability little Auffaltfehler in filling machine radiation intensity Irradiation time / duration of manufacture no impairment of taste example 1 + + normal normal + Comparative Example 1 - - normal normal + Comparative Example 2 + - normal elevated - Comparative Example 3 + - elevated normal - Comparative Example 4 + - elevated elevated -

Table 3 shows that with the folding according to the invention during the sterilization with electron radiation with a constant intensity and duration of the electron irradiation, a high durability of the food in the container can be achieved. Due to the constant sterilization time, the process duration of the container production in Example 1 is not increased. In addition, the taste of Organgensafts is not affected by the sterilization. Furthermore, the coats processed according to Example 1 hardly show any unfolding errors in the filling machine. Such deployment errors typically occur when the sheath has been folded flat and is to be unfolded from the flat folded state for further processing. If the coat does not behave ideally, the unfolding can fail. Such a failure can block container manufacturing on the filling machine and require manual maintenance. In this case, downtime and reduced productivity occur. Compared with Example 1, Comparative Examples 2 to 4 without folding as shown in Table 3 show disadvantages. Table 4: Evaluation of the container production with sterilization for the examples and comparative examples with sterilization by hydrogen peroxide high durability little Auffaltfehler in filling machine Consumption of hydrogen peroxide Example 2 + + normal Comparative Example 5 - - normal Comparative Example 6 + - elevated

Table 4 shows that with the refolding according to the invention during sterilization by spraying with hydrogen peroxide with a constant amount of hydrogen peroxide used, a high shelf life of the food in the container can be achieved. Furthermore, the coats processed according to Example 2 hardly show any unfolding errors in the filling machine. In contrast, Comparative Examples 5 and 6 show disadvantages without folding. Table 5: Characterization of the refolding during sterilization by specifying the internal angles in the first and further folding states for examples according to the invention 1st and 3rd inner angle first folding state 2nd and 4th inner angle first folding state 1st and 3rd inner angle further folded state 2nd and 4th inner angle further folded state Example 3 85 ° 95 ° 95 ° 85 ° Example 4 65 ° 115 ° 115 ° 65 ° Example 5 45 ° 135 ° 135 ° 45 ° Example 6 0 ° 180 ° 180 ° 0 °

Table 5 shows values for the 4 internal angles of the respective sheath in the first and further folding states. In this case, the specified folding states represent end positions of folding over. The specified values for the inner angles are maximum and minimum values, respectively (first folding state: 1st and 3rd inner angle minimum, 2nd and 4th inner angle maximum, further folding state: 1st and 3rd 3. interior angle maximum, 2nd and 4th interior angle minimum). Table 6: Durability and Auffaltfehler for inventive examples with different internal angles during folding high durability little unfolding error in filling machine Example 3 + + Example 4 ++ ++ Example 5 +++ +++ Example 6 + +

Table 6 shows the shelf life of the orange juice as well as the folding defects in the filling machine for Examples 3 to 6. Surprisingly, both sizes for Example 5 show an optimum.

In the above Tables 3 to 6
+++ a more favorable result than ++,
++ a more advantageous result than +,
+ a more favorable result than -, and
- a more favorable result than -.

• 1a) eine schematische Darstellung einer erfindungsgemäßen Vorrichtung mit einem Behältervorläufer in einem ersten Faltzustand;
• 1b) eine schematische Darstellung der erfindungsgemäßen Vorrichtung der 1a) mit dem Behältervorläufer in einem weiteren Faltzustand;
• 2a) eine schematische Darstellung einer weiteren erfindungsgemäßen Vorrichtung mit einem Behältervorläufer in einem ersten Faltzustand;
• 2b) eine schematische Darstellung der erfindungsgemäßen Vorrichtung der 2a) mit dem Behältervorläufer in einem weiteren Faltzustand;
• 3a) eine schematische Darstellung einer weiteren erfindungsgemäßen Vorrichtung mit einem Behältervorläufer in einem ersten Faltzustand;
• 3b) eine schematische Darstellung der erfindungsgemäßen Vorrichtung der 3a) mit dem Behältervorläufer in einem weiteren Faltzustand;
• 4 eine schematische Darstellung einer weiteren erfindungsgemäßen Vorrichtung in verschiedenen Momentaufnahmen bei einem Überführen eines Behältervorläufers von einem ersten Faltzustand in einen weiteren Faltzustand;
• 5 eine schematische Darstellung einer weiteren erfindungsgemäßen Vorrichtung in verschiedenen Momentaufnahmen bei einem Überführen eines Behältervorläufers von einem ersten Faltzustand in einen weiteren Faltzustand;
• 6 ein schematische Darstellung eines erfindungsgemäßen flächenförmigen Verbunds im Querschnitt;
• 7 eine schematische Darstellung eines erfindungsgemäßen Behältervorläufers;
• 8 eine schematische Darstellung eines erfindungsgemäßen geschlossenen Behälters;
• 9 ein Ablaufdiagramm eines erfindungsgemäßen Verfahrens; und
• 10 ein Ablaufdiagramm eines weiteren erfindungsgemäßen Verfahrens.

Unless otherwise indicated in the description or the respective figure, they show schematically and not to scale:

• 1a ) is a schematic representation of a device according to the invention with a container precursor in a first folded state;
• 1b ) is a schematic representation of the device according to the invention the 1a ) with the container precursor in a further folding condition;
• 2a ) is a schematic representation of another device according to the invention with a container precursor in a first folded state;
• 2 B ) is a schematic representation of the device according to the invention the 2a ) with the container precursor in a further folding condition;
• 3a ) is a schematic representation of another device according to the invention with a container precursor in a first folded state;
• 3b ) is a schematic representation of the device according to the invention the 3a ) with the container precursor in a further folding condition;
• 4 a schematic representation of another device according to the invention in different snapshots in a transfer of a container precursor from a first folded state to another folding state;
• 5 a schematic representation of another device according to the invention in different snapshots in a transfer of a container precursor from a first folded state to another folding state;
• 6 a schematic representation of a sheet-like composite according to the invention in cross section;
• 7 a schematic representation of a container precursor according to the invention;
• 8th a schematic representation of a closed container according to the invention;
• 9 a flow diagram of a method according to the invention; and
• 10 a flow diagram of another method according to the invention.

1a ) shows a schematic representation of a device according to the invention 100 with a container precursor 103 in a first folded state 101 , The device further includes as components a germ count reduction device 104 and a folding device. The container precursor 103 includes a sheet-like composite 600 , The sheet-like composite 600 is according to the 6 built up. The sheet-like composite 600 further includes a first longitudinal edge 107 and another longitudinal edge 108 , These are sealed together and form a longitudinal seam 702 (please refer 7 ) of the container precursor 103 , In the direction of the first longitudinal edge 107 to the other longitudinal edge 108 includes the sheet-like composite 600 a first longitudinal fold 109 , a second longitudinal fold 110 , a third longitudinal fold 111 and a fourth longitudinal fold 112 , At the first longitudinal fold 109 adjacent folding areas of the sheet-like composite 600 shoot a first interior angle 113 one. Analogous to this are the second to fourth longitudinal folds 110 to 112 through a corresponding second to fourth inner angle 114 to 116 characterized. In the in 1a ) shown first folding state 101 of the container precursor 103 amount: the first interior angle 113 45 °, the second interior angle 114 135 °, the third interior angle 115 45 ° and the fourth interior angle 116 135 °. The germ count reduction device 104 is disposed and adapted to discharge a germ count reducing agent 119 on the inside 608 of the sheet-like composite 600 to a germ count reduction. To this includes the Keimzahlverringerungseinrichtung 104 a hot cathode as an electron source. Thus, the germ count reducing agent 119 here an electron radiation. The hot cathode is housed in the tip of a rod. From there, the hot cathode radiates the electron radiation radially in all directions as indicated by the arrows in 1a ) indicated. In this case, the rod projects with the hot cathode over an opening of the jacket-shaped container precursor 103 into this. Further, the germ count reducing means 104 along a longitudinal direction of the container precursor, so here perpendicular to the image plane, designed to be displaceable. It is also possible that the jacket-shaped container precursor 103 in the longitudinal direction relative to Keimzahlverringerungseinrichtung 104 slidably disposed, in this case, in an alternative, the Keimzahlverringerungseinrichtung 104 firm and the container precursor 103 be provided movable. The folding device is arranged and designed for transferring (folding over) the container precursor 103 from the first folding state 101 in another folding condition 102 during germ count reduction. In 1b ) is the container precursor 103 in the further folding state 102 shown. For folding, the folding device includes two outer engagement elements 105 as well as 2 further outside attack elements 106 , The outer attack elements 105 are each arranged and adapted to exert a respective force in opposite first attack directions 117 on the container precursor 103 , The other external attack elements 106 are each arranged and adapted to exert a respective force in opposing other attack directions 118 on the container precursor 103 , These are the two outer attack elements 105 along the first attack directions 117 arranged mutually displaceable. Similarly, the two other external attack elements 106 along the further attack directions 118 arranged mutually displaceable. The outer attack elements 105 as well as the other external attack elements 106 are each arranged and adapted to the sheet-like composite 600 on its outside 601 (please refer 6 ) to contact. Here are the outer attack elements 105 and the other outer attack elements 106 each angle pieces for receiving by the longitudinal folds 109 to 112 formed longitudinal edges of the container precursor 103 on.

1b ) shows a schematic representation of the device according to the invention 100 of the 1a ) with the container precursor 103 in the further folding state 102 , In the in 1b ) shown further folding state 102 of the container precursor 103 amount: the first interior angle 113 135 °, the second interior angle 114 45 °, the third interior angle 115 135 ° and the fourth interior angle 116 45 °.

2a ) shows a schematic representation of another device according to the invention 100 with a container precursor 103 in a first folded state 101 , The device 100 of the 2a ) is formed as the device 100 of the 1a ), where in the 2a ) the outside attack elements 105 not on the longitudinal edges of the container precursor 103 but attack on the wall surfaces. For this purpose, the two outer attack elements 105 instead of the elbows via punches with flat punch surfaces, which are preferably rubberized in order to increase a static friction with the wall surfaces. The first attack directions 117 are opposite each other. Here are the first attack directions 117 chosen so that they each have a share in the direction of the container precursor 103 to increase static friction with the panels and a portion parallel to the respective wall surface to create a shearing motion through which the folding occurs. These are the two outer attack elements 105 further along the first attack directions 117 arranged mutually displaceable. Further The device 100 of the 2a ) contains no further outside attack elements 106 ,

2 B ) shows a schematic representation of the device according to the invention 100 of the 2a ) with the container precursor 103 in another folded state 102 , In the in 2 B ) shown further folding state 102 of the container precursor 103 amount: the first interior angle 113 135 °, the second interior angle 114 45 °, the third interior angle 115 135 ° and the fourth interior angle 116 45 °.

3a ) shows a schematic representation of another device according to the invention 100 with a container precursor 103 in a first folded state 101 , The device 100 of the 3a ) is formed as the device 100 of the 2a ), where in the 3a ) the outside attack elements 105 for contacting the container precursor 103 on the outside 601 do not have punches, but vacuum gripper. This allows a higher adhesion of the outer attack elements 105 be generated to the wall surfaces.

3b ) shows a schematic representation of the device according to the invention 100 of the 3a ) with the container precursor 103 in another folded state 102 , In the in 3b ) shown further folding state 102 of the container precursor 103 amount: the first interior angle 113 135 °, the second interior angle 114 45 °, the third interior angle 115 135 ° and the fourth interior angle 116 45 °.

4 shows a schematic representation of another device according to the invention 100 in various snapshots during a transfer of a container precursor 103 from a first folding state 101 in another folding condition 102 , The device 100 further includes as constituents a germ count reducing means 104 and a folding device. The container precursor 103 and the germ count reducing means 104 are like in 1a ). The device 100 of the 4 however, includes another folding device. Again, the Umfalteinrichtung is arranged and designed to transfer (folding) of the container precursor 103 from the first folding state 101 in the further folding state 102 during germ count reduction. For folding over, the folding device includes an outer engagement element 105 and a first inner engagement element 401 , The outer attack element 105 is a conveyor belt of a belt conveyor. The first interior attack element 401 is at the same time the germ count reduction device 104 , The outer attack element 105 is disposed and configured to apply a first force to the container precursor 103 by contacting the container precursor 103 on the outside 601 , Here exercises the outer attack element 105 , So the conveyor belt, by a transport movement, the first force on the lying on the conveyor container precursor 103 out. The first interior attack element 401 , So the rod-shaped Keimzahlverringerungseinrichtung 104 is disposed and configured to apply a second force to the container precursor 103 by contacting the container precursor 103 on the inside 608 , Apart from the displaceability of Keimzahlverringerungseinrichtung 104 in the longitudinal direction of the container precursor 103 is the germ count reduction device 104 spatially fixed. The aforementioned first force is directed opposite to the second force. The arrows in the 4 show movements of the conveyor belt and the container precursor 103 when refolding. As in the snapshots of the 4 the container precursor is shown 103 through the conveyor belt around the germ count reduction device 104 rotated and folded over.

5 shows a schematic representation of another device according to the invention 100 in various snapshots during a transfer of a container precursor 102 from a first folding state 101 in another folding condition 102 , Here follow in the snapshots from above to The phases of folding shown below are temporally successive. The device 100 contains as components a germ count reduction device 104 and a folding device. The container precursor 103 and the germinal number reduction means 104 are as in FIG 1a ). The device 100 of the 5 however, includes another folding device. Again, the Umfalteinrichtung is arranged and designed to transfer (folding) of the container precursor 103 from the first folding state 101 in the further folding state 102 during germ count reduction. For folding over, the folding device includes an outer engagement element 105 and a first inner engagement element 401 and another interior attack element 501 , The outer attack element 105 is a conveyor belt of a belt conveyor. The first interior attack element 401 and the further inner attack element 501 are designed as bars. The outer attack element 105 is arranged and adapted to exert a first force 502 on the container precursor 103 by contacting the container precursor 103 on the outside 601 , Here exercises the outer attack element 105 , so the conveyor belt, by a transport movement, the first force 502 on the container precursor lying on the conveyor belt 103 out. As a result, the container precursor 103 moved until he reached the first inner attack element 401 abuts. This phase of refolding is in the second snapshot from the top in the 5 shown. This is the container precursor 103 in the first folding state 101 , The first interior attack element 401 is arranged and adapted to exert a second force 503 on the container precursor 103 by contacting the container precursor 103 on the inside 608 , The second force 503 is a counterforce to the first force 502 and is being exercised when the container precursor 103 as a result of its movement on the conveyor belt to the first Innenangriffselement 401 abuts. Furthermore, the outer engagement element 105 arranged and adapted to exert a third force 504 on the container precursor 103 by contacting the container precursor 103 on the outside 601 , For this purpose, the conveyor belt moves in the opposite direction to the previous movement. As a result, the container precursor 103 until he moves to the other interior attack element 501 abuts. This phase of refolding is in the third snapshot from the top in the 5 shown. This is the container precursor 103 in the further folding state 101 , The further interior attack element 501 is arranged and adapted to exert a fourth force 505 on the container precursor 103 by contacting the container precursor 103 on the inside 608 , The fourth force 505 is a counterforce to the third force 504 and is being exercised when the container precursor 103 as a result of its movement on the conveyor belt to the further Innenangriffselement 501 abuts. The first interior attack element 401 and the further inner attack element 501 are each arranged spatially fixed. As in the snapshots of the 5 the container precursor is shown 103 translated through the conveyor belt back and forth and thereby by the Innenangriffselemente 401 . 501 folded.

6 shows a schematic representation of a sheet-like composite according to the invention 600 in cross section. The sheet-like composite 600 includes layers of a layer sequence overlapping one another from an outer surface 601 of the sheet-like composite 600 to an inner surface 608 of the sheet-like composite 600 : a paint job 602 , here a decor of colors of a color series MAS of SunChemical, Parssippany, USA; a polymer outer layer 603 made of LDPE 19N430 from Ineos GmbH, Cologne (basis weight 15 g / m ² ); a carrier layer 604 from one carton Stora Enso Natura T Duplex with double line (Scott-Bond 200 J / m ² , residual moisture 7.5%, basis weight 210 g / m ² ); a polymer interlayer 605 made of LDPE 19N430 from Ineos GmbH, Cologne (basis weight 18 g / m ² ); a barrier layer 606 from an aluminum foil EN AW 8079 from Hydro Aluminum Deutschland GmbH (thickness 6 μm); a primer layer 609 made from Escor 6000 HSC from Exxon Mobil Corporation (basis weight 4 g / m ² ) and LDPE 19N430 from Ineos GmbH, Cologne (basis weight 22 g / m ² ); and a polymer inner layer 607 from a blend of 65% by weight LDPE 19N430 from Ineos Köln GmbH and 35% by weight Eltex 1315 AZ from Ineos Köln GmbH (blend basis weight 10 g / m ² ).

7 shows a schematic representation of a container precursor according to the invention 103 , The container precursor 103 of the 7 is the container precursor 103 of the 1a ) after germ count reduction in the device 100 , Thus, the container precursor includes 103 includes the sheet-like composite 600 of the 6 with 4 longitudinal folds 109 to 112 , each one edge (longitudinal edge) 701 form. The sheet-like composite 600 is a blank for making a single closed container 800 , The container precursor 103 is jacket-shaped and includes a longitudinal seam 702 in which the first longitudinal edge 107 and the other longitudinal edge 108 of the sheet-like composite 600 are sealed together.

Further, the container precursor includes 103 a hole 705 in the carrier layer 604 , The hole 705 is with the polymer outer layer 603 (not shown), the polymer interlayer 605 (not shown), the barrier layer 606 , the mediator layer 609 (not shown) and the polymer inner layer 607 (not shown) covered as Lochdeckschichten. By folding along creases 706 and joining folding areas in a header area 703 and a floor area 704 of the container precursor 103 is a closed one container 800 available. Such a closed container 800 is in 8th shown. The sheet-like composite 600 of the container precursor 103 points to the inside 608 along the first longitudinal fold 109 , the second longitudinal folding 110 , the third longitudinal folding 111 and the fourth longitudinal fold 112 in each case essentially the same very low germ count.

8th shows a schematic representation of a closed container according to the invention 800 , The closed container 800 was from the container precursor 103 to 7 produced. The closed container 800 includes a food 801 and has 12 edges 701 on. Further, the closed container 800 with a lid with an opening aid 802 connected to the hole 705 on the outside 601 of the sheet-like composite 600 covered. Here is the lid 802 in its interior a cutting tool as an opening aid.

9 shows a flowchart of a method according to the invention 900 , The procedure 900 is with the device 100 of the 1a ) and 1b). In a process step a) 901 of the process 900 becomes the container precursor 103 of the 1a ) provided. In a method step b) 902, the inside becomes 608 of the sheet-like composite 600 subjected to the electron beam. This is the container precursor 103 in the 1a ) shown first folding state 101 In a process step c) 903, the container precursor 103 folded over and so the more folding state 102 of the 1b ) receive. During refolding, the inside becomes 601 continue to be exposed to the electron beam. It follows a process step d) 904, in which now in the further folding state 102 located container precursor 103 continue on the inside 601 is acted upon by the electron beam.

10 shows a flowchart of another method according to the invention 900 , The procedure 900 to 10 is the procedure 900 to 9 , followed by further process steps here. In a method step e) 1001 becomes a floor area 704 of the container precursor 103 by folding the sheet-like composite 600 educated. In a method step f) 1002, the bottom area becomes 704 sealed by sealing with hot air at a temperature of 300 ° C. In a process step g) 1003, the container precursor 103 with a food 801 filled and in a process step h) 1004, the container precursor 103 in a head area 703 obtaining a closed container 800 closed by sealing. In a method step j) 1005, the closed container 800 with an opening aid 802 connected.

LIST OF REFERENCE NUMBERS

100

inventive device

101

first folding condition

102

another folding condition

103

container precursor

104

Bacterial count reducing means

105

External drive element

106

another outside attack element

107

first longitudinal edge

108

further longitudinal edge

109

first longitudinal folding

110

second longitudinal folding

111

third longitudinal fold

112

fourth longitudinal fold

113

first interior angle

114

second interior angle

115

third interior angle

116

fourth interior angle

117

opposing first attack directions

118

opposing further attack directions

119

Bacterial count reducing means

401

first inner attack element

501

another interior attack element

502

first strength

503

second force

504

third force

505

fourth force

600

sheet-like composite

601

outside

602

inking

603

Polymer outer layer

604

backing

605

Polymer interlayer

606

barrier layer

607

Polymer inner layer

608

inside

609

Bonding layer

701

edge

702

longitudinal seam

703

head area

704

floor area

705

hole

706

creasing

800

inventive closed container

801

food

802

Cover with opening aid

900

inventive method

901

Process step a)

902

Process step b)

903

Process step c)

904

Process step d)

1001

Process step e)

1002

Process step f)

1003

Process step g)

1004

Process step h)

1005

Process step j)

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• WO 9009926 A2 [0003]

Cited non-patent literature

• ISO 1183-1: 2004 [0058]
• DIN 55943: 2001-10 [0078]
• DIN EN ISO 307 (2013-08) [0091]
• ISO 16014-3 / -5 [0092]

Claims (16)

A device (100) comprising as constituents a) a container precursor (103) comprising a sheet-like composite (600); b) a germ count reduction means (104); and c) a folding device; wherein the sheet-like composite (600) comprises a layer sequence comprising as layers overlapping one another in the direction from an outer side (601) of the sheet-like composite (600) to an inner side (608) of the sheet-like composite (600). A) a carrier layer (604), B) a barrier layer (606), and C) includes a polymer inner layer (607); wherein the germ count reducing means (104) is arranged and adapted to deliver a germ count reducing agent (119) to the inside (608) of the sheet composite (600) for germ count reduction; wherein the folding device is arranged and configured to transfer the container precursor (103) from a first folding state (101) to a further folding state (102) during the germ count reduction. The device (100) according to Claim 1 wherein the nucleation reducing agent (119) is one selected from the group consisting of an electromagnetic radiation, a particle radiation, a gas, a liquid, and a plasma, or a combination of at least two thereof. The device (100) according to Claim 1 or 2 wherein the sheet-like composite (600) a) includes a first longitudinal edge (107) and a further longitudinal edge (108), wherein the first longitudinal edge (107) with the further longitudinal edge (108) forming a longitudinal seam (702) of the container precursor (103) connected is; b) in the following order along the outside (601) of the sheet-like composite (600) in the direction from the first longitudinal edge (107) to the further longitudinal edge (108) i) a first longitudinal fold (109), ii) a second longitudinal fold (110) , iii) a third longitudinal fold (111), and iv) a fourth longitudinal fold (112), wherein in the first fold state (101) of the container precursor (103) a. the first longitudinal fold (109) is characterized by a first inner angle (113) of less than 90 °, b. the second longitudinal fold (110) is characterized by a second inner angle (114) of more than 90 °, c. the third longitudinal fold (111) is characterized by a third inner angle (115) of less than 90 °, and d. the fourth longitudinal fold (114) is characterized by a fourth inner angle (116) of more than 90 °; wherein in the further folded state (102) of the container precursor (103) A) the first inner angle (113) is more than 90 °, B) the second inner angle (114) is less than 90 °, C) the third inner angle (115) is more is as 90 °, and D) the fourth inner angle (116) is less than 90 °. The apparatus (100) of any one of the preceding claims, wherein the folding means comprises at least two outer engagement members (105) for transferring the container precursor (103), the outer engagement members (105) each being arranged and configured to exert a respective force in opposite directions first attack directions (117) on the container precursor (103). The device (100) according to Claim 4 wherein the outer engagement elements (105) for applying the respective force a) are arranged and adapted to contact the sheet-like composite (600) on the outer side (601), and b) are arranged and configured to be displaceable relative to one another. The device after Claim 4 or 5 wherein the outer engagement elements are arranged and adapted to contact the sheet-like composite a) respectively on opposite wall surfaces of the container precursor, or b) contact each other at opposite longitudinal edges of the container precursor. The device according to one of Claims 1 to 3 wherein the folding means for transferring the container precursor comprises a) an outer engagement element, and b) a first inner engagement element, the outer engagement element being arranged and configured to exert a first force on the container precursor by contacting the container precursor on the outer side, wherein the first inner engagement element is arranged and adapted to exert a second force on the container precursor by contacting the container precursor on the inside, wherein the first force of the second force is opposite. The device after Claim 7 wherein the folding means comprises a further inner engaging member, the outer engaging member further being arranged to apply a third force to the container precursor by contacting the container precursor on the outer side, the further inner engaging member being arranged and configured to apply a fourth force to the container Container precursor by contacting the container precursor on the inside, wherein the third force of the fourth force is opposite. The device after Claim 7 or 8th wherein the outer engagement element is arranged and configured to be movable relative to the first inner engagement element or the further inner engagement element or both. The device according to one of Claims 7 to 9 wherein the first inner engagement element or the further inner engagement element or both is / are included in the germ count reduction device. The device according to one of Claims 7 to 10 , wherein the outer engagement element is a transport element of a conveyor. The device according to any one of the preceding claims, wherein the device is a filling machine. A method (900) including as method steps a) provision of a container precursor (103) comprising a sheet-like composite (600), wherein the sheet-like composite (600) comprises a layer sequence comprising as superimposed layers in the direction from an outer side (601) of the sheet-like composite (600) to an inner side (60) 608) of the sheet-like composite (600) i) a carrier layer (604), ii) a barrier layer (606), and iii) a polymer inner layer (607); b) applying to the inside (608) of the sheet-like composite (600) a germ count reducing means (119), wherein the container precursor (103) is in a first folded state (101); c) transferring the container precursor (103) from the first folding state (101) to another folding state (102); and d) subjecting the inside (608) of the sheet-like composite (600) to a germ count reducing means (119), wherein the container precursor (103) is in the further folded state (102). A filling machine including a) a germ count reducing means (104); and b) a folding device; wherein the filling machine is adapted to an a. Producing a container from a container precursor (103) comprising a sheet-like composite (600); b. Filling the container with a food (801) to obtain a filled container, and c. Closing the filled container to obtain a closed container (800); wherein the sheet-like composite (600) comprises a layer sequence comprising as superimposed layers in the direction of an outer side (601) of the sheet-like composite (600) to an inner side (608) of the sheet-like composite (600) a) a carrier layer (604), b ) includes a barrier layer (606), and c) a polymeric inner layer (607); wherein the germ count reducing means (104) is arranged and adapted to deliver a germ count reducing agent (119) to the inside (608) of the sheet composite (600) for germ count reduction; wherein the folding device is arranged and configured to transfer the container precursor (103) from a first folding state (101) to a further folding state (102) during the germ count reduction. A use of the device (100) according to one of Claims 1 to 12 to sterilize the container precursor (103) on the inside (608) of the sheet composite (600). A use of a folding device for transferring a container precursor (103), comprising a sheet-like composite (600), from a first folding state (101) into a further folding state (102) during sterilization of the container precursor (103), wherein the sheet-like composite (600) comprises a layer sequence comprising as layers overlapping one another in the direction from an outer side (601) of the sheet-like composite (600) to an inner side (608) of the sheet-like composite (600). a) a carrier layer (604), b) a barrier layer (606), and c) a polymer inner layer (607), includes.

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