DE102017214471A1 - A method of manufacturing a container from a composition including a liquid and a plurality of particles - Google Patents

Abstract

The invention relates to a method, including as method steps
a) Provide
a. a composition comprising a liquid and a plurality of particles, and
b. a first negative form, including
A) a first mold cavity partially surrounding the first mold wall, and
B) a first mold opening connecting the first mold interior to an environment of the first female mold,
b) introducing the composition through the first mold opening into the first mold interior;
c) at least partially removing the liquid of the composition through the first mold wall from the first mold interior so that the particles of the plurality of particles overlay the first mold wall on a side of the first mold wall facing the first mold interior to obtain a container blank; and
d) molding the container blank to obtain a container.
Furthermore, the invention relates to a container obtainable by the above method; a container with a container layer containing a plurality of particles and no folding and no fold; a method for filling and closing one of the aforementioned containers; a closed container obtainable by this method; an apparatus and uses of a filling machine, one of the aforementioned containers, and a plurality of fibers.

Description

1. a) Bereitstellen
   1. a. einer Zusammensetzung, beinhaltend eine Flüssigkeit und eine Vielzahl von Partikeln, und
   2. b. einer ersten Negativform, beinhaltend
      1. A) eine einen ersten Forminnenraum teilweise umgebende erste Formwand, und
      2. B) eine den ersten Forminnenraum mit einer Umgebung der ersten Negativform verbindende erste Formöffnung,
      wobei die erste Formwand mindestens teilweise
      1. A. für die Flüssigkeit durchlässig, und
      2. B. für die Partikel der Vielzahl von Partikeln im Vergleich zu der Flüssigkeit weniger durchlässig
      ist;
2. b) Einbringen der Zusammensetzung durch die erste Formöffnung in den ersten Forminnenraum;
3. c) mindestens teilweises Entfernen der Flüssigkeit der Zusammensetzung durch die erste Formwand aus dem ersten Forminnenraum, so dass die Partikel der Vielzahl von Partikeln die erste Formwand auf einer dem ersten Forminnenraum zugewandten Seite der ersten Formwand unter Erhalt eines Behälterrohlings überlagern, wobei der Behälterrohling eine einen Rohlingsinnenraum mindestens teilweise umgebende Rohlingswandung, beinhaltet; und
4. d) Formen des Behälterrohlings unter Erhalt eines Behälters, wobei der Behälter eine einen Behälterinnenraum mindestens teilweise umgebende Behälterwandung beinhaltet, wobei die Behälterwandung eine aus der Rohlingswandung erhaltene Behälterschicht beinhaltet.

The present invention relates to a method including as method steps

1. a) Provide
   1. a. a composition comprising a liquid and a plurality of particles, and
   2. b. a first negative form, including
      1. A) a first mold cavity partially surrounding the first mold wall, and
      2. B) a first mold opening connecting the first mold interior to an environment of the first female mold,
      wherein the first mold wall is at least partially
      1. A. permeable to the liquid, and
      2. B. less permeable to the particles of the plurality of particles compared to the liquid
      is;
2. b) introducing the composition through the first mold opening into the first mold interior;
3. c) at least partially removing the liquid of the composition through the first mold wall from the first mold interior, so that the particles of the plurality of particles, the first mold wall on a side facing the first mold interior side of the first mold wall to obtain a container blank overlay, wherein the container blank a Blank interior at least partially surrounding blank wall, includes; and
4. d) forming the container blank to obtain a container, wherein the container includes a container wall at least partially surrounding the container wall, wherein the container wall includes a container layer obtained from the blank wall.

Furthermore, the invention relates to a container obtainable by the above method; a container with a container layer containing a plurality of particles and no folding and no fold; a method for filling and closing one of the aforementioned containers; a closed container obtainable by this method; an apparatus and uses of a filling machine, one of the aforementioned containers, and a plurality of fibers.

In the prior art, various containers are known for the filling, transporting and storing of flowable foods, whether foods for human consumption or even animal food products. Typical requirements for these containers are a low weight for transport; the largest possible variety of shapes in container production; the suitability for space-saving storage and space-saving and weight-efficient transport; mechanical stability, especially when stacking and emptying the containers; the tightness; the openability; and the pouring behavior. Another requirement, which is becoming increasingly important, is environmental compatibility. This in turn is a generic term for numerous aspects such as raw material and energy consumption in container production, the use of the largest possible proportion of renewable raw materials, the ability to recycle and health compatibility. Exemplary flowable foods are drinks. In the following, briefly typical, known in the art beverage containers are discussed.

Long-known containers for drinks are bottles, especially glass bottles. Glass bottles have due to their substantially cylindrical shape the disadvantage that a very dense and space-saving storage is hardly possible. Glass bottles are limited to this form by their manufacturing process. Although other forms are available from glass, but these require some extra effort in the production and often lead to otherwise disadvantageous, for example, less stable, glass bottles. Due to their fragility, glass bottles generally have a considerable disadvantage, which also entails a risk of injury. As a result, glass bottles are banned at many major public events. In addition, glass bottles have a considerable weight, which leads to increased energy consumption during transport. Moreover, quite a lot of energy is needed to produce glass, even if the glass used for this purpose comes from recycling. In addition, aggravating an increased transport costs. Glass bottles are usually prefabricated in a glassworks and must then be transported using significant transport volumes to the beverage bottling operation.

Other prior art bottles are made of plastic. These plastic bottles have some improvements in terms of the above disadvantages. However, low-weight plastic bottles often have limited mechanical stability. So it is not uncommon that plastic bottles squeeze when pouring and thus a part of the contents is spilled. The prior art attempts to reduce this problem, for example by corresponding beads in the bottle wall. This often succeeds only partially. Should the plastic bottles In contrast, be dimensionally stable, the wall must be made thick accordingly, which significantly increases the weight of the bottles and the consumption of raw materials. The latter is particularly disadvantageous for plastic bottles, since these are usually produced to a large extent from non-renewable raw materials. The recovery of the plastic usually requires complex petrochemical processes and recycling is relatively expensive. A biological degradation of the plastic is hardly possible until now. For a variety of reasons, plastic bottles are not very environmentally friendly.

Another development known in the art of beverage containers is foil pouches. These containers made of an often multilayer composite film have no dimensional stability, resulting in significant disadvantages. During storage and transport, it is easy to damage the bags, causing them to leak. Furthermore, opening aids are to be provided by the manufacturer for opening the bags, or tools such as scissors must be used for opening. A significant problem that arises in the use of the foil bags for the end user is the pouring behavior. The lack of dimensional stability often leads to the spilling of container contents. In addition, the opened bags are difficult to store. For the formerly spread milk pouches one tried to manage with special milk bag holders, a solution which obviously has little to satisfy. So this additional holding device must be adapted exactly to the size of the milk carton. If the milk carton is emptied to a certain degree, the holder no longer fits and is no longer suitable for pouring out. The disadvantages of the film bags are so significant that milk cartons, for example, are scarcely found on the market.

The disadvantages of non-dimensionally stable containers bypass containers which are made of foldable composites, so-called laminates. These laminates usually contain, in addition to a multiplicity of polymer layers, a cardboard layer which gives them dimensional stability. Furthermore, these laminates usually have a barrier layer, which increases the tightness. This layer is often made of aluminum. The containers are typically made by folding the laminate and sealing certain laminate areas. Due to this type of production, the variety of shapes of these containers is limited. Thus, the laminates can not fold arbitrarily without loss of their tightness. In addition, round containers such as bottles of these laminates are usually difficult to produce, for example by the use of additional container components such as a separate container bottom made of plastic. Furthermore, these containers opening aids or additional tools are required to open. Although the laminates used are usually foldable but have a certain flexibility, the laminate containers are essentially dimensionally stable, but not as stiff and rigid as, for example, glass bottles. This leads to disadvantages in the stackability and also during pouring. As already stated, the laminates usually consist of a series of interconnected layers comprising different polymers and often also aluminum. Such multi-layer structures require some effort to recycle. The desire to improve the laminate containers has led in the prior art to increasingly complex layer composites with numerous different materials and material mixtures. The large number of polymers used is considered to be disadvantageous for environmental reasons, for example.

Based on the urgent need for a more environmentally friendly dimensionally stable food container with the greatest possible freedom in the shaping, the container according to the invention open up a novel container category. Rather than further developing the state-of-the-art and increasingly complex laminate containers, the inventors have devised an environmentally-friendly starting material which has hitherto not been considered for producing containers, particularly bottles, for flowable foodstuffs. So this material obtained from wood pulp is known only for egg cartons, so not for flowable food. The fact that this environmentally friendly material from renewable raw materials for egg cartons has been known for a long time and has not yet been considered for development for use according to the invention shows that a completely new development strand was opened here, overcoming established technical prejudices. It goes without saying that the production process for egg cartons can not simply be transferred to the production of the containers according to the invention. Rather, a completely different method was developed for this purpose. In addition, numerous aspects must be taken into account, which unexpectedly allow the production of particularly advantageous containers. Within the scope of the invention, some of these aspects are pointed out. For example, it is surprisingly particularly important in the process to keep certain parameters in certain areas during the molding of the material obtained from the pulp in order to be able to produce containers that are as stable as possible or to be able to produce specific container shapes.

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 most environmentally friendly bottle for flowable food. In this case, the bottle preferably consists of as large a proportion as possible of renewable raw materials. Furthermore, the bottle is preferably as easy to recycle.

Another object of the invention is to provide a most environmentally friendly and as good as possible, preferably without additional secondary packaging, stackable bottle for flowable food. For this purpose, the bottle according to the invention preferably has the greatest possible mechanical stability, in particular against compression. Furthermore, it is an object of the invention to provide the aforementioned advantageous bottle, which also has the lowest possible weight. Furthermore, the aforementioned advantageous bottle can preferably be produced with the lowest possible material consumption. Further preferably, the aforementioned advantageous bottle is particularly well suited for storing milk or fruit juices rich in vitamin C, such as orange juice.

Another object of the invention is to provide a bottle for flowable food, which has the lowest possible water absorption and is as environmentally friendly as possible, preferably by using as little as possible chemical additives in the production of bottles.

Furthermore, it is an object of the invention to provide a bottle for flowable food, which shows the greatest possible stability on a flat surface. Furthermore, it is an object of the invention to provide a bottle for flowable food, which has the lowest possible weight. Another object of the invention is to provide a bottle for flowable food that can be made in as wide a variety of different forms as possible. In addition, it is an object of the invention to provide a bottle for flowable food that is as simple as possible.

It is a basic requirement for a bottle for flowable food that it has a minimum level of water resistance. An object of the invention is to make this waterproof as large as possible and in this case preferably to keep the weight of the bottle as low as possible. In particular, the bottle is preferably as environmentally friendly as possible, preferably by using as few chemical additives as possible in bottle production. Another object of the invention is to provide a simple, cost-effective and / or energy-saving method for producing a bottle of flowable food that is as environmentally friendly as possible.

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) Bereitstellen
   1. a. einer Zusammensetzung, beinhaltend eine Flüssigkeit und eine Vielzahl von Partikeln, und
   2. b. einer ersten Negativform, beinhaltend
      1. A) eine einen ersten Forminnenraum teilweise umgebende erste Formwand, und
      2. B) eine den ersten Forminnenraum mit einer Umgebung der ersten Negativform verbindende erste Formöffnung,
      wobei die erste Formwand mindestens teilweise
      1. A. für die Flüssigkeit durchlässig, und
      2. B. für die Partikel der Vielzahl von Partikeln im Vergleich zu der Flüssigkeit weniger durchlässig
      ist;
2. b) Einbringen der Zusammensetzung durch die erste Formöffnung in den ersten Forminnenraum;
3. c) mindestens teilweises Entfernen der Flüssigkeit der Zusammensetzung durch die erste Formwand aus dem ersten Forminnenraum, so dass die Partikel der Vielzahl von Partikeln die erste Formwand auf einer dem ersten Forminnenraum zugewandten Seite der ersten Formwand unter Erhalt eines Behälterrohlings überlagern, wobei der Behälterrohling eine einen Rohlingsinnenraum mindestens teilweise umgebende Rohlingswandung, beinhaltet; und
4. d) Formen des Behälterrohlings unter Erhalt eines Behälters, wobei der Behälter eine einen Behälterinnenraum mindestens teilweise umgebende Behälterwandung beinhaltet, wobei die Behälterwandung eine aus der Rohlingswandung erhaltene Behälterschicht beinhaltet.

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

1. a) Provide
   1. a. a composition comprising a liquid and a plurality of particles, and
   2. b. a first negative form, including
      1. A) a first mold cavity partially surrounding the first mold wall, and
      2. B) a first mold opening connecting the first mold interior to an environment of the first female mold,
      wherein the first mold wall is at least partially
      1. A. permeable to the liquid, and
      2. B. less permeable to the particles of the plurality of particles compared to the liquid
      is;
2. b) introducing the composition through the first mold opening into the first mold interior;
3. c) at least partially removing the liquid of the composition through the first mold wall from the first mold interior, so that the particles of the plurality of particles, the first mold wall on a side facing the first mold interior side of the first mold wall to obtain a container blank overlay, wherein the container blank a Blank interior at least partially surrounding blank wall, includes; and
4. d) forming the container blank to obtain a container, wherein the container includes a container wall at least partially surrounding the container wall, wherein the container wall includes a container layer obtained from the blank wall.

The introduction in process step b) is preferably carried out as, preferably continuous, flowing of the composition through the first mold opening into the first mold interior. In the process step b) or c) or both, the composition preferably has a temperature in a range of 15 to 80 ° C, preferably 15 to 70 ° C, more preferably from 15 to 60 ° C, more preferably from 15 to 50 ° C, more preferably from 15 to 40 ° C, even more preferably from 15 to 30 ° C, most preferably from 15 to 27 ° C. Preferably, the first mold wall is permeable to the liquid and impermeable to the particles of the plurality of particles. A preferred liquid is water. As a liquid, however, in addition to water, any other suitable for the use of the invention suitable for use according to the invention liquid into consideration. The method 1 according to the invention is preferably carried out with the device according to the invention.

Preferably, the first mold interior has a maximum diameter in a plane perpendicular to a height of the first mold interior, the first mold interior having at least partially a diameter in the direction from the plane to the first mold opening that is less than the maximum diameter of the first mold interior. The height of the first mold interior is preferably a maximum extension of the first mold interior in a Cartesian spatial direction. Further preferably, the height of the first mold cavity extends from the first mold opening to a portion of the first mold wall opposite the first mold opening, which is preferably a bottom of the first mold interior.

The container wall preferably has a container opening, wherein the container interior has a maximum diameter in a plane perpendicular to a height of the container interior, wherein the container interior in the direction from the plane to the container opening at least partially has a diameter which is less than the maximum diameter of container interior. The container wall preferably contains a container layer, which is obtained in process step d) from the blank wall.

Preferably, in method step c), the method includes increasing a pressure in the first molding cavity so that the particles of the plurality of particles are pressed against the first mold wall. As a result, the container blank is preferably obtained. Increasing the pressure is preferably increasing fluid pressure in the first mold cavity. For this purpose, a fluid is preferably introduced into the first mold interior. This fluid preferably has a temperature in a range of from 10 to 300 ° C, more preferably from 15 to 280 ° C, most preferably from 20 to 260 ° C. Alternatively or additionally preferably, the method in method step c) includes contacting the particles of the plurality of particles on a side facing away from the first mold wall side with a solid. Here, the solid preferably has a temperature in a range of from 10 to 300 ° C, more preferably from 50 to 300 ° C, more preferably from 100 to 300 ° C, even more preferably from 100 to 250 ° C, even more preferably from 150 to 210 ° C most preferably from 160 to 200 ° C.

Preferably, the solid is a hollow body, wherein increasing the pressure in the first mold interior is increasing a pressure in the hollow body. For this purpose, a fluid is preferably introduced into the hollow body. This fluid preferably has a temperature in a range of from 10 to 300 ° C, more preferably from 15 to 280 ° C, most preferably from 20 to 260 ° C. Preferably, the hollow body includes an elastically deformable wall. The elastically deformable wall is preferably pressed in process step c) against the particles of the plurality of particles which overlay the first mold wall, so that the particles of the plurality of particles are pressed against the first mold wall. As a result, the particles of the plurality of particles overlapping the first mold wall are pressed between the hollow body and the first mold wall.

In an embodiment 2 according to the invention, the method 1 is configured according to its embodiment 1, wherein the blank wall has a first average density, wherein the container layer has a further average density, wherein a ratio of the further average density to the first average density in a range of 2 to 6, preferably from 2.2 to 5.8, more preferably from 2.4 to 5.6, more preferably from 2.6 to 5.4, more preferably from 2.8 to 5.2, more preferably from 3.0 to 5 , 0, more preferably from 3.1 to 4.8, even more preferably from 3.2 to 4.6, even more preferably from 3.3 to 4.4, even more preferably from 3.4 to 4.2, more preferably from 3 , 5 to 4.0, more preferably from 3.6 to 3.9, most preferably from 3.65 to 3.85. Accordingly, molding in method step d) preferably involves compacting the blank wall to the container layer.

In an embodiment 3 according to the invention, the method 1 according to its embodiment 2 is designed, wherein the first average density is in a range of 0.1 to 0.8 g / cm ³ , more preferably 0.1 to 0.7 g / cm ³ , more preferably from 0.1 to 0.6 g / cm ³ , more preferably from 0.1 to 0.5 g / cm ³ , even more preferably from 0.1 to 0.4 g / cm ³ , most preferably from 0.1 to 0.3 g / cm ³ , is.

In an embodiment 4 according to the invention, the method 1 according to its embodiment 2 or 3 is configured, wherein the further average density in a range of 0.4 to 2.0 g / cm ³ , preferably from 0.4 to 1.8 g / cm ³ , more preferably from 0.4 to 1.6 g / cm ³ , more preferably from 0.4 to 1.4 g / cm ³ , more preferably from 0.4 to 1.2 g / cm ³ , more preferably from 0.4 to 1.0 g / cm ³ , more preferably from 0.5 to 0.9 g / cm ³ , most preferably from 0.6 to 0.8 g / cm ³ .

In an embodiment 5 according to the invention, the method 1 according to one of its preceding embodiments is configured, wherein the blank wall has a first specific volume, wherein the container layer has a further specific volume, wherein a ratio of the first specific volume to the further specific volume in a range of 2 to 6, preferably from 2.2 to 5.8, more preferably from 2.4 to 5.6, more preferably from 2.6 to 5.4, more preferably from 2.8 to 5.2, more preferably from 3.0 to 5.0, more preferably from 3.1 to 4.8, even more preferably from 3.2 to 4.6, even more preferably from 3.3 to 4.4, even more preferably from 3.4 to 4.2, more preferably from 3.5 to 4.0, more preferably from 3.6 to 3.9, most preferably from 3.65 to 3.85.

In an embodiment 6 according to the invention, the method 1 according to one of its preceding embodiments is configured, wherein the molding in the method step d) to at least 70%, preferably to at least 80%, more preferably to at least 90%, most preferably to at least 95%, each one total surface of the blank wall facing away from the blank interior, increasing a density of the blank wall by a factor in a range from 2 to 6, preferably from 2.2 to 5.8, more preferably from 2.4 to 5.6, more preferably from 2.6 to 5.4, more preferably from 2.8 to 5.2, more preferably from 3.0 to 5.0, more preferably from 3.1 to 4.8, even more preferably from 3.2 to 4.6, still more preferably from 3 From 3 to 4.4, more preferably from 3.4 to 4.2, even more preferably from 3.5 to 4.0, even more preferably from 3.6 to 3.9, most preferably from 3.65 to 3.85 , includes. Preferably, the molding in step d) at each point of the blank wall includes the aforesaid increase in the density of the blank wall. As a result, the container layer is preferably obtained from the blank wall.

1. A) einen eine Rohlingsöffnung des Behälterrohlings bildenden Mündungsbereich,
2. B) einen Boden, und
3. C) ein den Mündungsbereich mit dem Boden verbindenden Mantelbereich

beinhaltet, wobei das Formen in dem Verfahrensschritt d) jeweils in dem Mündungsbereich, dem Boden und dem Mantelbereich ein Vergrößern einer Dichte der Rohlingswandung um einen Faktor in einem Bereich von 2 bis 6, bevorzugt von 2,2 bis 5,8, bevorzugter von 2,4 bis 5,6, bevorzugter von 2,6 bis 5,4, bevorzugter von 2,8 bis 5,2, bevorzugter von 3,0 bis 5,0, bevorzugter von 3,1 bis 4,8, noch bevorzugter von 3,2 bis 4,6, noch bevorzugter von 3,3 bis 4,4, noch bevorzugter von 3,4 bis 4,2, noch bevorzugter von 3,5 bis 4,0, noch bevorzugter von 3,6 bis 3,9, am bevorzugtesten von 3,65 bis 3,85, beinhaltet. Hierdurch wird vorzugsweise die Behälterschicht aus der Rohlingswandung erhalten.In an embodiment 7 according to the invention, the method 1 according to one of its preceding embodiments is configured, wherein the blank wall

1. A) a mouth region forming a blank opening of the container blank,
2. B) a floor, and
3. C) a jacket region connecting the mouth region to the bottom

wherein the molding in step d) in each of the mouth region, the bottom and the cladding region increases the density of the ingot wall by a factor in a range of 2 to 6, preferably 2.2 to 5.8, more preferably 2 From 4 to 5.6, more preferably from 2.6 to 5.4, more preferably from 2.8 to 5.2, more preferably from 3.0 to 5.0, even more preferably from 3.1 to 4.8, even more preferably from From 3.2 to 4.6, more preferably from 3.3 to 4.4, even more preferably from 3.4 to 4.2, even more preferably from 3.5 to 4.0, even more preferably from 3.6 to 3, 9, most preferably from 3.65 to 3.85. As a result, the container layer is preferably obtained from the blank wall.

In an embodiment 8 according to the invention, the method 1 according to one of its preceding embodiments is configured, wherein the molding in the method step d) takes place such that the container layer is at least 70%, preferably at least 80%, more preferably at least 90%, most preferably at least 95%, each of a total surface of the container layer facing away from the container interior, has a density in the range from 0.1 to 3.0 g / cm ³ , preferably from 0.1 to 2.5 g / cm ³ , more preferably from 0, 1 to 2.0 g / cm ³ , more preferably from 0.1 to 1.8 g / cm ³ , more preferably from 0.1 to 1.6 g / cm ³ , more preferably from 0.1 to 1.4 g / cm ³ , more preferably from 0.1 to 1.2 g / cm ³ , more preferably from 0.2 to 1.1 g / cm ³ , more preferably from 0.4 to 1.0 g / cm ³ , even more preferably from 0.5 to 0.9 g / cm ³ , most preferably from 0.6 to 0.8 g / cm ³ .

In an embodiment 9 according to the invention, the method 1 according to one of its preceding embodiments is configured, wherein the shaping in the method step d) reducing the thickness of the blank wall by a factor in a range from 1/7 to 1/2, preferably 1/6 to 1/2, more preferably from 1/6 to 1/3, most preferably from 1/6 to 1/4. Preferably, an average thickness of the blank wall in method step d) is reduced by the aforementioned factor. Further preferably, the blank wall at each point in the method step d) is reduced by the aforementioned factor. In a further preferred embodiment of the method, the thickness of the blank wall in a bottom and a jacket region of the container blank in method step d) is reduced by the aforementioned factor.

• d1) ein erstes Pressen mindestens eines Teils der Rohlingswandung in mindestens einer ersten Richtung; und
• d2) ein weiteres Pressen des mindestens einen Teils der Rohlingswandung in mindestens einer weiteren Richtung unter Erhalt mindestens eines Teils der Behälterschicht beinhaltet;

wobei die mindestens eine erste Richtung von der mindestens einen weiteren Richtung verschieden ist; wobei das erste Pressen in dem Unterschritt d1) ein Vergrößern einer Dichte des mindestens einen Teils der Rohlingswandung um einen Faktor von maximal 3, bevorzugt von maximal 2,5, bevorzugter von maximal 2, noch bevorzugter von maximal 1,7, am bevorzugtesten von maximal 1,5, beinhaltet. Bevorzugt beinhalten das erste Pressen und das weitere Pressen zusammen ein Vergrößern der Dichte des mindestens einen Teils der Rohlingswandung um einen Faktor in einem Bereich von 2 bis 6, bevorzugt von 2,2 bis 5,8, bevorzugter von 2,4 bis 5,6, bevorzugter von 2,6 bis 5,4, bevorzugter von 2,8 bis 5,2, bevorzugter von 3,0 bis 5,0, bevorzugter von 3,1 bis 4,8, noch bevorzugter von 3,2 bis 4,6, noch bevorzugter von 3,3 bis 4,4, noch bevorzugter von 3,4 bis 4,2, noch bevorzugter von 3,5 bis 4,0, noch bevorzugter von 3,6 bis 3,9, am bevorzugtesten von 3,65 bis 3,85. Die Unterschritte d1) und d2) können hierbei gleichzeitig, zeitlich überlappend oder zeitlich nacheinander erfolgen. Ein Pressen der Rohlingswandung ist hierin ein Ausüben einer Kraft auf die Rohlingswandung gegen eine entgegengerichtete Gegenkraft, vorzugsweise um die Rohlingswandung hierdurch zu verdichten. Vorzugsweise wird die Rohlingswandung in einem Mündungsbereich des Behälterrohlings in der ersten Richtung (erstes Pressen) und in der weiteren Richtung (weiteres Pressen) gepresst. Hierbei kann das erste Pressen durch ein Einwirken eines ersten Werkzeugs auf die Rohlingswandung und das weitere Pressen durch ein Einwirken eines weiteren Werkzeugs auf die Rohlingswandung erfolgen. Das erste Pressen und das weitere Pressen können jedoch auch durch ein Einwirken eines einzelnen Werkzeugs auf die Rohlingswandung erfolgen.In an embodiment 10 according to the invention, the method 1 according to one of its preceding embodiments is configured, wherein the shaping in the method step d) as substeps

• d1) first pressing at least a portion of the blank wall in at least a first direction; and
• d2) further pressing the at least a portion of the blank wall in at least one further direction to obtain at least a portion of the container layer;

wherein the at least one first direction is different from the at least one further direction; wherein the first pressing in the sub-step d1) Increasing a density of the at least part of the blank wall by a factor of at most 3, preferably at most 2.5, more preferably at most 2, even more preferably at most 1.7, most preferably at most 1.5. Preferably, the first pressing and further pressing together involve increasing the density of the at least a portion of the blank wall by a factor in a range of from 2 to 6, preferably from 2.2 to 5.8, more preferably from 2.4 to 5.6 more preferably from 2.6 to 5.4, more preferably from 2.8 to 5.2, more preferably from 3.0 to 5.0, more preferably from 3.1 to 4.8, even more preferably from 3.2 to 4, 6, more preferably from 3.3 to 4.4, more preferably from 3.4 to 4.2, even more preferably from 3.5 to 4.0, even more preferably from 3.6 to 3.9, most preferably from 3 , 65 to 3.85. Sub-steps d1) and d2) can be carried out simultaneously, overlapping in time or one after the other. Pressing the blank wall is herein exerting a force on the blank wall against an opposing counterforce, preferably to compress the blank wall therethrough. Preferably, the blank wall is pressed in an opening region of the container blank in the first direction (first pressing) and in the other direction (further pressing). In this case, the first pressing can take place by the action of a first tool on the blank wall and the further pressing by the action of a further tool on the blank wall. However, the first pressing and the further pressing can also be done by an action of a single tool on the blank wall.

In an embodiment 11 according to the invention, the method 1 according to its embodiment 10 is configured, wherein the at least one first direction or the at least one further direction is a direction along a height of the container blank. The respective other direction is preferably perpendicular to the height of the container blank, particularly preferably directed radially to an opening in the blank wall.

In an embodiment 12 according to the invention, the method 1 according to one of its preceding embodiments is configured, wherein the blank wall in any section through the container blank has a first circumferential line, wherein the container layer in the arbitrary section through the container has a further circumferential line, wherein a total of the Not more than a factor of 4, preferably not more than a factor of 2.5, more preferably not more than a factor of 2, most preferably not more than a factor of 1, 8, is longer than a whole of the blank interior facing portion of the first circumferential line. This means that in method step d), preferably, an entire section of a circumferential line of any section facing the blank interior is stretched by the container blank by no more than the aforementioned factor. The arbitrary cut is preferably a longitudinal section. Here, a longitudinal section through the container blank is a section through the blank wall, the sectional plane of which is oriented parallel to a height of the container blank. Preferably, the cutting plane includes the entire height of the container blank. Further preferably, the cutting plane includes a longitudinal axis of the container blank, wherein the longitudinal axis is preferably an axis of symmetry of the container blank.

In an embodiment 13 according to the invention, the method 1 according to one of its preceding embodiments is configured, wherein the blank wall in a random section through the container blank has a first circumferential line, wherein no portion of the first circumferential line in the method by more than a factor of 4, preferably by more is stretched as a factor 3, more preferably more than a factor of 2.5, even more preferably more than a factor of 2, most preferably more than a factor of 1.8. Preferably, no region of the blank wall for obtaining the container layer from the blank wall in process step d) in any direction is more than a factor of 2.5, more preferably more than a factor of 2, most preferably more than a factor of 1.8, stretched. By complying with this requirement, it is possible to produce very small bending radii of the container layer. If the requirement is not met, very small bending radii often occur when attempting to produce thin or even imperfections in the container layer, which makes them impervious or unstable.

In an embodiment 14 according to the invention, the method 1 according to one of its preceding embodiments is configured, wherein the particles of the plurality of particles are fibers.

In an embodiment 15 according to the invention, the method 1 according to its embodiment 14 is configured, wherein the fibers are plant fibers.

In an embodiment 16 according to the invention, the method 1 according to its embodiment 14 or 15 is configured, wherein the fibers include a pulp or a wood pulp or both, preferably consist thereof.

In an embodiment 17 according to the invention, the method 1 according to one of its preceding embodiments is configured, wherein the first negative mold is at least partially a negative mold of the container blank. This means that the first negative mold preferably by a configuration of the first mold interior facing surface of the first mold wall predetermines a shape of the blank wall. The container blank preferably includes a blank wall partially surrounding a blank interior. The blank wall preferably has a blank opening, the blank interior having a maximum diameter in a plane perpendicular to a height of the blank interior, the blank interior having at least sections a diameter in the direction from the plane to the blank opening which is less than the maximum diameter of the blank blank inner space. The height of the blank interior is preferably a maximum extent of the blank interior in a Cartesian spatial direction. Further preferably, the height of the blank interior extends from the blank opening to a portion of the blank wall opposite the blank opening, which is preferably a bottom of the container blank. The container blank is preferably formed in one piece.

In an embodiment 18 according to the invention, the method 1 according to one of its preceding embodiments is configured, wherein in the process step b) or c) or in both in each case on a side facing away from the first mold interior side of the first mold wall relative to the first mold interior a negative pressure. As a result, the at least partial removal of the liquid from the first mold interior is preferably supported in method step c). The application of the negative pressure can be realized by sucking off the liquid through the first mold wall.

In an embodiment 19 according to the invention, the method 1 according to one of its preceding embodiments is configured, wherein the first mold interior is connected to the environment of the first negative mold by a first plurality of openings in the first mold wall. A preferred first plurality of openings is one selected from the group consisting of a plurality of holes, a plurality of channels, and a plurality of pores, or a combination of at least two thereof. Preferably, the first mold wall is at least partially formed as a mesh, grid, perforated or porous. Preferably, the apertures of the first plurality of apertures are configured to be permeable to the liquid and less, preferably not permeable, to the particles of the plurality of particles. Here, the openings of the first plurality of openings preferably at least predominantly have a size which is smaller than a mean diameter of the particles of the plurality of particles.

In an embodiment 20 according to the invention, the method 1 according to one of its preceding embodiments is configured, wherein the liquid is water.

In an embodiment 21 according to the invention, the process 1 according to one of its preceding embodiments is configured, wherein in the process step a) the composition contains the liquid in a proportion in a range from 90 to 99.9% by weight, more preferably from 91 to 99, 9% by weight, more preferably from 92 to 99.9% by weight, more preferably from 93 to 99.9% by weight, more preferably from 94 to 99.9% by weight, most preferably from 95 to 99.5 Wt .-%, each based on the total weight of the composition includes.

In an embodiment 22 according to the invention, the method 1 according to one of its preceding embodiments is configured, wherein in the method step a) the composition comprises the plurality of particles in a proportion in a range of 0.1 to 5.0 wt .-%, preferably from 0 From 1 to 4.5% by weight, more preferably from 0.1 to 4.0% by weight, more preferably from 0.1 to 3.5% by weight, more preferably from 0.1 to 3.0% by weight. -%, more preferably from 0.1 to 2.5 wt .-%, more preferably from 0.1 to 2.0 wt .-%, more preferably from 0.3 to 2.0 wt .-%, more preferably from 0.3 to 2.0% by weight, more preferably from 0.3 to 1.8% by weight, more preferably from 0.3 to 1.6% by weight, more preferably from 0.5 to 1.6% by weight , more preferably from 0.5 to 1.4% by weight, most preferably from 0.5 to 1.2% by weight, based on the total weight of the composition. In a preferred embodiment of method 1, the composition includes solids and solid-forming additives together in an amount ranging from 0.1 to 5.0 wt%, preferably from 0.1 to 4.5 wt%, more preferably from 0.1 to 4.5 wt% From 0.1 to 4.0% by weight, more preferably from 0.1 to 3.5% by weight, more preferably from 0.1 to 3.0% by weight, more preferably from 0.1 to 2.5% by weight %, more preferably from 0.1 to 2.0% by weight, more preferably from 0.3 to 2.0% by weight, more preferably from 0.3 to 2.0% by weight, more preferably from 0, 3 to 1.8% by weight, more preferably from 0.3 to 1.6% by weight, more preferably from 0.5 to 1.6% by weight, more preferably from 0.5 to 1.4% by weight. %, most preferably from 0.5 to 1.2% by weight, based in each case on the total weight of the composition. Here, the particles of the plurality of particles belong to the solids. Solid-forming additives herein are those additives which are present in the composition in an unfixed state, as solids after drying of the composition, particularly in the blank wall or container layer obtained from the composition.

In an embodiment 23 according to the invention, the method 1 according to one of its preceding embodiments is configured, wherein in the method step a) the composition additionally a hydrophobing agent or a flow agent or both.

In an embodiment 24 according to the invention, the method 1 according to one of its preceding embodiments is configured, wherein the composition in the process steps b) and c) has a temperature in a range of 15 to 80 ° C, preferably 15 to 70 ° C, more preferably 15 to 60 ° C, more preferably 15 to 50 ° C, more preferably 15 to 40 ° C, even more preferably 15 to 30 ° C, most preferably 15 to 27 ° C.

In an embodiment 25 according to the invention, the method 1 according to one of its preceding embodiments is configured, wherein the blank wall has an average blank wall thickness, wherein the container layer has an average container layer thickness, wherein the average blank wall thickness is more than the average container layer thickness. Preferably, the average billet wall thickness is a factor in a range of from 2 to 7, more preferably from 2 to 6, more preferably from 3 to 6, most preferably from 4 to 6, more than the average container layer thickness.

In an embodiment 26 according to the invention, the method 1 according to one of its preceding embodiments is configured, wherein the container layer has a lower content of the liquid than the blank wall. Preferably, the container layer contains 50 to 100% by weight, more preferably 60 to 100% by weight, more preferably 70 to 100% by weight, still more preferably 80 to 100% by weight, still more preferably 90 to 100% by weight %, more preferably from 90 to 99% by weight, most preferably from 90 to 97% by weight, based in each case on the content of the liquid in the blank wall, of less liquid than the blank wall. Preferably, the liquid content of the container layer is a value in a range of 50 to 90% by weight, more preferably 50 to 85% by weight, more preferably 50 to 75% by weight, most preferably 55 to 75% by weight. %, less than the liquid content of the blank wall. Preferably, the blank wall has a content of the liquid in a range of 50 to 97% by weight, more preferably 55 to 97% by weight, more preferably 60 to 97% by weight, still more preferably 65 to 97% by weight. , most preferably from 70 to 97% by weight, based in each case on the weight of the blank wall. Preferably, in the process step d) the container layer has a content of the liquid in a range from 0 to 25 wt.%, Preferably from 0 to 20 wt.%, More preferably from 3 to 20 wt.%, Most preferably from 5 to 15 wt .-%, based on the weight of the container layer on.

In an embodiment 27 according to the invention, the method 1 according to one of its preceding embodiments is configured, wherein the method between the method steps c) and d) includes a demolding of the container blank from the first negative mold. The demolding preferably includes removal of the container blank from the first negative mold. Additionally or alternatively, the demolding preferably includes separating a plurality of parts of the first negative mold from each other. Here, the first negative mold may for example be constructed of half-shells, which are separated from each other for demolding.

In an embodiment 28 according to the invention, the method 1 according to its embodiment 27 is configured, wherein the method after removal from the mold and before process step d) includes introducing the container blank into a further negative mold, wherein the further negative mold is at least partially a negative mold of the container. In this case, the further negative mold preferably includes a further mold wall which at least partially surrounds another mold interior, the surface of which facing the further mold interior being designed such that it predetermines a configuration of a surface of the container layer facing away from the container interior. Preferably, the further mold interior in a plane perpendicular to a height of the further mold interior has a maximum diameter, the further mold interior in the direction from the plane to the further mold opening at least partially has a diameter which is less than the maximum diameter of the further mold interior. The height of the further mold interior is preferably a maximum extent of the further mold interior in a Cartesian spatial direction. Further preferably, the height of the further mold interior extends from the further mold opening to a section of the further mold wall opposite the further mold opening, which is preferably a bottom of the further mold interior.

1. I. für die Flüssigkeit durchlässig, und
2. II. für die Partikel der Vielzahl von Partikeln im Vergleich zu der Flüssigkeit weniger durchlässig

ist. Vorzugsweise ist die weitere Formwand für die Flüssigkeit durchlässig und für die Partikel der Vielzahl von Partikeln nicht durchlässig. Bevorzugt ist der weitere Forminnenraum durch eine weitere Vielzahl von Öffnungen in der weiteren Formwand mit der Umgebung der weiteren Negativform verbunden. Eine bevorzugte weitere Vielzahl von Öffnungen ist eine ausgewählt aus der Gruppe, bestehend aus einer Vielzahl von Löchern, einer Vielzahl von Kanälen, und einer Vielzahl von Poren, oder eine Kombination aus mindestens zwei davon. Bevorzugt ist die weitere Formwand mindestens teilweise als Netz, Gitter, perforiert oder porös ausgebildet. Die Öffnungen der weiteren Vielzahl von Öffnungen sind bevorzugt so ausgebildet, dass sie für die Flüssigkeit durchlässig und im Vergleich dazu für die Partikel der Vielzahl von Partikeln weniger, bevorzugt nicht, durchlässig sind. Hierbei habe die Öffnungen der weiteren Vielzahl von Öffnungen vorzugweise zumindest überwiegend eine Größe, welche kleiner ist als ein mittlerer Durchmesser der Partikel der Vielzahl von Partikeln.In an embodiment 29 according to the invention, the method 1 according to its embodiment 28 is configured, wherein the further negative mold includes a further mold wall at least partially surrounding another mold interior, wherein the further mold wall at least partially

1. I. permeable to the liquid, and
2. II. Less permeable to the particles of the plurality of particles compared to the liquid

is. Preferably, the further mold wall is permeable to the liquid and not permeable to the particles of the plurality of particles. Preferably, the further mold interior is connected by a further plurality of openings in the other mold wall with the environment of the further negative mold. A preferred further variety of openings is one selected from the group consisting of a plurality of holes, a plurality of channels, and a plurality of pores, or a combination of at least two thereof. Preferably, the further mold wall is at least partially formed as a mesh, grid, perforated or porous. The openings of the further plurality of openings are preferably formed such that they are permeable to the liquid and, compared to the particles of the plurality of particles, are less permeable, preferably not permeable. Here, the openings of the further plurality of openings preferably have at least predominantly a size which is smaller than a mean diameter of the particles of the plurality of particles.

In an embodiment 30 according to the invention, the method 1 according to one of its preceding embodiments is configured, wherein in method step d) a temperature of the container blank is increased. For this purpose, the container blank is preferably with a fluid or a solid or both, each having a temperature in a range of 50 to 300 ° C, preferably from 100 to 260 ° C, more preferably from 120 to 230 ° C, most preferably from 160 to 200 ° C, contacted. The solid is preferably the further mold wall of the further negative mold or a hollow body with an elastically deformable wall or both.

In an embodiment 31 according to the invention, the method 1 according to its embodiment 29 or 30 is designed, wherein the method step d) includes increasing a pressure in the further shaping interior, so that the container blank is pressed outwards against the further mold wall.

In an embodiment 32 according to the invention, the method 1 according to its embodiment 31 is configured, wherein in the method step d) increasing the pressure in the further mold interior is increasing a fluid pressure in the further mold interior. For this purpose, a fluid is preferably introduced into the further mold interior. This fluid preferably has a temperature in a range of 50 to 300 ° C, preferably 100 to 260 ° C, more preferably 120 to 230 ° C, most preferably 160 to 200 ° C.

In an embodiment 33 according to the invention, the method 1 according to one of its embodiments 29 to 32 is configured, wherein the method step d) includes contacting the container blank on a side facing away from the wider mold wall side with a solid.

In an embodiment 34 according to the invention, the method 1 according to its embodiment 33 is configured, wherein the solid body is a hollow body, wherein increasing the pressure in the method step d) is increasing a pressure in the hollow body. Preferably, the hollow body includes an elastically deformable wall. Preferably, in process step d) a fluid, preferably a gas or a liquid or both, for example air or an oil or both, is introduced into the hollow body. This fluid preferably has a temperature in a range of 50 to 300 ° C, preferably 100 to 260 ° C, more preferably 120 to 230 ° C, most preferably 160 to 200 ° C ° C.

In an embodiment 35 according to the invention, the method 1 according to its embodiment 33 or 34 is configured, wherein the solid in the method step d) a temperature in a range of 50 to 300 ° C, preferably from 100 to 260 ° C, more preferably from 120 to 230 ° C, most preferably from 160 to 200 ° C.

In an embodiment 36 according to the invention, the method 1 according to one of its preceding embodiments is configured, wherein the method further comprises an at least partial, preferably full-surface, superimposing of the container layer on a side of the container layer facing the container interior with a polymer inner layer. The superposing is preferably carried out after process step d).

In an embodiment 37 according to the invention, the method 1 according to one of its preceding embodiments is configured, wherein the method further comprises at least partially, preferably full-surface, superimposing the container layer on a side of the container layer facing away from the container interior with a polymer outer layer. The superposing is preferably carried out after process step d).

In an embodiment 38 according to the invention, the method 1 according to one of its preceding embodiments is configured, the method being a method for producing the container. In a preferred embodiment of the method 1, the container of the container 2 according to the invention according to one of its embodiments. A preferred container is a food container. Additionally or alternatively, particularly preferred, the container is a bottle.

A contribution to fulfilling at least one of the objects according to the invention is afforded by an embodiment 1 of a container 1 obtainable by the method 1 according to one of its embodiments. The container 1 according to the invention has, in a preferred embodiment, the features of the container 2 according to the invention according to one of its embodiments.

1. A. eine Behälteröffnung aufweist, und
2. B. eine Behälterschicht beinhaltet;

wobei die Behälterschicht

1. a. eine Vielzahl von Partikeln, und
2. b. keine Faltung und keinen Falz

beinhaltet; wobei der Behälterinnenraum

1. I) in einer Ebene senkrecht zu einer Höhe des Behälterinnenraums einen maximalen Durchmesser hat, und
2. II) in Richtung von der Ebene zu der Behälteröffnung mindestens abschnittsweise einen Durchmesser hat, der weniger ist als der maximale Durchmesser des Behälterinnenraums.

A contribution to the fulfillment of at least one of the objects according to the invention is afforded by an embodiment 1 of a container 2, comprising a container wall partially surrounding a container interior; the container wall

1. A. has a container opening, and
2. B. includes a container layer;

wherein the container layer

1. a. a variety of particles, and
2. b. no folding and no fold

includes; the container interior

1. I) in a plane perpendicular to a height of the container interior has a maximum diameter, and
2. II) in the direction from the plane to the container opening at least partially has a diameter which is less than the maximum diameter of the container interior.

The height of the container interior is preferably a maximum extent of the container interior in a Cartesian spatial direction. Further preferably, the height of the container interior extends from the container opening to a portion of the container wall opposite the container opening, which is preferably a bottom of the container. Preferably, the container layer extends over an entire surface of the container wall.

In an embodiment 2 of the invention, the container 2 is configured according to its embodiment 1, wherein the container layer has an average thickness in a range of 100 to 2000 .mu.m, preferably 150 to 1800 .mu.m, more preferably 200 to 1500 .mu.m, more preferably 250 to 1300 μm, most preferably from 300 to 1000 μm.

In an embodiment 3 according to the invention, the container 2 is designed according to its embodiment 1 or 2, the container layer having a mean density in a range from 0.4 to 2.0 g / cm ³ , preferably from 0.4 to 1.8 g / cm ³ , more preferably from 0.4 to 1.6 g / cm ³ , more preferably from 0.4 to 1.4 g / cm ³ , more preferably from 0.4 to 1.2 g / cm ³ , more preferably from 0.4 to 1.0 g / cm ³ , more preferably from 0.5 to 0.9 g / cm ³ , most preferably from 0.6 to 0.8 g / cm ³ .

In an embodiment 4 according to the invention, the container 2 is configured according to one of its embodiments 1 to 3, wherein the container layer to at least 70%, preferably at least 80%, more preferably at least 90%, most preferably at least 95%, each of a total of the Container interior surface facing away from the container layer has a density in a range of 0.4 to 2.0 g / cm ³ , preferably from 0.4 to 1.8 g / cm ³ , more preferably from 0.4 to 1.6 g / cm ³ , more preferably from 0.4 to 1.4 g / cm ³ , more preferably from 0.4 to 1.2 g / cm ³ , more preferably from 0.4 to 1.0 g / cm ³ , even more preferably from 0.5 to 0.9 g / cm ³ , most preferably from 0.6 to 0.8 g / cm ³ .

1. A) einen eine Behälteröffnung des Behälters bildenden Mündungsbereich,
2. B) einen Boden, und
3. C) ein den Mündungsbereich mit dem Boden verbindenden Mantelbereich

beinhaltet, wobei sich die Behälterschicht mindestens teilweise über den Mündungsbereich, den Boden und den Mantelbereich erstreckt, wobei die Behälterschicht in dem Mündungsbereich, dem Boden und dem Mantelbereich eine Dichte in einem Bereich von 0,4 bis 2,0 g/cm³, bevorzugt von 0,4 bis 1,8 g/cm³, bevorzugter von 0,4 bis 1,6 g/cm³, bevorzugter von 0,4 bis 1,4 g/cm³, bevorzugter von 0,4 bis 1,2 g/cm³, bevorzugter von 0,4 bis 1,0 g/cm³, noch bevorzugter von 0,5 bis 0,9 g/cm³, am bevorzugtesten von 0,6 bis 0,8 g/cm³, hat.In an embodiment 5 according to the invention, the container 2 is designed according to one of its embodiments 1 to 4, wherein the container wall

1. A) a mouth region forming a container opening of the container,
2. B) a floor, and
3. C) a jacket region connecting the mouth region to the bottom

wherein the container layer extends at least partially over the mouth region, the bottom and the cladding region, wherein the container layer in the mouth region, the bottom and the cladding region has a density in a range of 0.4 to 2.0 g / cm ³ from 0.4 to 1.8 g / cm ³ , more preferably from 0.4 to 1.6 g / cm ³ , more preferably from 0.4 to 1.4 g / cm ³ , more preferably from 0.4 to 1.2 g / cm ³ , more preferably from 0.4 to 1.0 g / cm ³ , even more preferably from 0.5 to 0.9 g / cm ³ , most preferably from 0.6 to 0.8 g / cm ³ ,

In an embodiment 6 according to the invention, the container 2 is designed according to one of its embodiments 1 to 5, wherein the container layer absorbs water in a range from 0 to 20% by weight, preferably from 0 to 15% by weight, more preferably from 0 to 10 % By weight of their dry weight.

In an embodiment 7 according to the invention, the container 2 is designed according to one of its embodiments 1 to 6, wherein the container layer has a bending radius of less than 10 mm, preferably less than 9 mm, more preferably less than 8 mm, most preferably less than 7 mm , includes. The container layer preferably contains the bending radius on a side of the container layer which is remote from the container interior.

1. A) einen eine Behälteröffnung des Behälters bildenden Mündungsbereich,
2. B) einen Boden, und
3. C) ein den Mündungsbereich mit dem Boden verbindenden Mantelbereich

beinhaltet, wobei sich die Behälterschicht mindestens teilweise über den Mündungsbereich, den Boden und den Mantelbereich erstreckt, wobei die Behälterschicht in einem Übergangsbereich zwischen dem Boden und dem Mantelbereich einen Biegeradius von weniger als 10 mm, bevorzugt von weniger als 9 mm, bevorzugter von weniger als 8 mm, am bevorzugtesten von weniger als 7 mm, hat. Bevorzugt beinhaltet die Behälterschicht den Biegeradius auf einer von dem Behälterinnenraum abgewandten Seite der Behälterschicht. Hierdurch ist eine verbesserte Standfestigkeit des Behälters erreichbar.In an embodiment 8 according to the invention, the container 2 according to one of its embodiments 1 to 7 is configured, wherein the container wall

1. A) a mouth region forming a container opening of the container,
2. B) a floor, and
3. C) a jacket region connecting the mouth region to the bottom

wherein the container layer extends at least partially over the mouth region, the bottom and the cladding region, wherein the container layer in a transition region between the bottom and the cladding region has a bending radius of less than 10 mm, preferably less than 9 mm, more preferably less than 8 mm, most preferably less than 7 mm. The container layer preferably contains the bending radius on a side of the container layer which is remote from the container interior. As a result, an improved stability of the container can be achieved.

In an embodiment 9 according to the invention, the container 2 according to one of its embodiments 1 to 8 is configured, wherein the particles of the plurality of particles are fibers.

In an embodiment 10 according to the invention, the container 2 is configured according to its embodiment 9, the fibers being vegetable fibers.

In an embodiment 11 according to the invention, the container 2 according to its embodiment 9 or 10 is designed, wherein the fibers include a pulp or a wood pulp or both, preferably consist thereof.

In an embodiment 12 according to the invention, the container 2 is configured according to one of its embodiments 1 to 11, wherein the container layer contains solids in a proportion in a range of 50 to 99.9 wt .-%, more preferably 60 to 99 wt .-%, more preferably from 70 to 99% by weight, more preferably from 75 to 99% by weight, more preferably from 80 to 99% by weight, more preferably from 85 to 99% by weight, even more preferably from 90 to 97% by weight, most preferably from 91 to 95% by weight, based in each case on the weight of the container layer. The solids preferably include the particles of the plurality of particles or are the particles of the plurality of particles.

In one embodiment 13 according to the invention, the container 2 is designed according to one of its embodiments 1 to 12, wherein the container wall additionally comprises a polymer inner layer, the inner polymer layer at least partially overlaying the container layer on a side of the container layer facing the container interior.

In one embodiment 14 according to the invention, the container 2 is designed according to one of its embodiments 1 to 13, wherein the container wall additionally comprises a polymer outer layer, wherein the outer polymer layer at least partially overlies the container layer on a side of the container layer facing away from the container interior.

In an embodiment 15 according to the invention, the container 2 is configured according to one of its embodiments 1 to 14, wherein the container layer at any point thinner than 100 .mu.m, preferably as 150 .mu.m, more preferably than 200 .mu.m, more preferably than 250 .mu.m, more preferably than 300 .mu.m, more preferably than 400 μm, more preferably 450 μm, most preferably 500 μm. The lack of such thin spots in the container layer increases the mechanical stability of the container, in particular against compression.

In an embodiment 16 according to the invention, the container 2 is designed according to one of its embodiments 1 to 15, wherein the container has a compression strength in a range from 100 to 250 N, preferably from 150 to 250 N.

In an embodiment 17 according to the invention, the container 2 is configured according to one of its embodiments 1 to 16, the container wall having a water vapor permeation rate in a range of 0.009 to 0.14 g water per cm ² container wall and year, preferably from 0.026 to 0.12 g water per cm ² container wall and year, more preferably from 0.043 to 0.11 g water per cm ² container wall and year.

In an embodiment 18 according to the invention, the container 2 is configured according to one of its embodiments 1 to 17, wherein the container layer additionally contains a hydrophobizing agent or a flow agent or both. The hydrophobizing agent or the flow agent or both are preferably present as solids. Further preferably, the hydrophobizing agent or the flow agent or both is associated with the particles of the plurality of particles.

In an embodiment 19 according to the invention, the container 2 is designed according to one of its embodiments 1 to 18, wherein the container opening is covered with a closure. Here, the container is therefore preferably a closed container.

In an embodiment 20 according to the invention, the container 2 is designed according to one of its embodiments 1 to 19, wherein the container interior contains a fluid.

1. I) ein Bereitstellen des Behälters 1 oder 2, jeweils nach einer seiner Ausführungsformen;
2. II) ein Befüllen des Behälters mit einem Fluid; und
3. III) ein Verschließen des Behälters durch Verbinden des Behälters mit einem Verschluss.

A contribution to the fulfillment of at least one of the objects according to the invention is afforded by an embodiment 1 of a method 2, comprising as method steps,

1. I) providing the container 1 or 2, each according to one of its embodiments;
2. II) filling the container with a fluid; and
3. III) closing the container by connecting the container to a closure.

Preferably, the filling takes place in the method step II) through the opening of the container. The process steps II) and III) are preferably carried out in a filling machine. Before the method step II), the container is preferably at least partially sterilized, preferably on the surface of the container wall facing the container interior.

In an embodiment 2 according to the invention, the method 2 according to its embodiment 1 is designed, wherein the closure is sealed to the container. The closure is preferably sealed to the container by means of the polymer outer layer or by means of the polymer inner layer or, more preferably, by means of both.

A contribution to fulfilling at least one of the objects according to the invention is afforded by an embodiment 1 of a closed container obtainable by the method 2 according to its embodiment 1 or 2. In a preferred embodiment, the closed container according to the invention has the features of the container 1 or 2 according to the invention, in each case according to one its embodiments.

1. a. eine Flüssigkeit zu einem ersten Flüssigkeitsgehalt, und
2. b. eine Vielzahl von Partikeln

beinhaltet, wobei der Behälter eine einen Behälterinnenraum mindestens teilweise umgebende Behälterwandung beinhaltet, wobei die Behälterwandung eine Behälterschicht beinhaltet, wobei die Behälterschicht

1. A. die Flüssigkeit zu einem weiteren Flüssigkeitsgehalt, und
2. B. die Vielzahl von Partikeln

beinhaltet, wobei der weitere Flüssigkeitsgehalt weniger ist als der erste Flüssigkeitsgehalt. Eine bevorzugte Vorrichtung ist eine Vorrichtung zum Herstellen eines Behälters, vorzugsweise des erfindungsgemäßen Behälters 2 nach einer seiner Ausführungsformen. Hierbei wird der erste Flüssigkeitsanteil in Gew.-% angegeben und auf das Gesamtgewicht der Rohlingswandung bezogen. Der weitere Flüssigkeitsanteil wird in Gew.-% angegeben und auf das Gesamtgewicht der Behälterschicht der Behälterwandung bezogen. Die Behälterschicht ist gerade die Schicht der Behälterwandung, welche die Partikel der Vielzahl von Partikeln beinhaltet und vorzugsweise aus der Rohlingswandung erhalten wird. Bevorzugt beinhaltet dieses Erhalten ein Separieren eines Teils der Flüssigkeit aus der Rohlingswandung. Demnach beinhaltet die Behälterschicht die Flüssigkeit der Rohlingswandung nur teilweise. Bevorzugt ist der weitere Flüssigkeitsanteil um einen Wert in einem Bereich von 50 bis 90 Gew.-%, bevorzugter von 50 bis 85 Gew.-%, bevorzugter von 50 bis 75 Gew.-%, am bevorzugtesten von 55 bis 75 Gew.-%, weniger als der erste Flüssigkeitsanteil. Der Behälterrohling ist bevorzugt einstückig ausgebildet. Eine bevorzugte Flüssigkeit ist Wasser. Als Flüssigkeit kommt jedoch neben Wasser jede andere dem Fachmann zum erfindungsgemäßen Einsatz geeignet erscheinende Flüssigkeit in Betracht. Bevorzugt ist der weitere Flüssigkeitsgehalt 50 bis 100 Gew.-%, bevorzugter von 60 bis 100 Gew.-%, bevorzugter von 70 bis 100 Gew.-%, noch bevorzugter von 80 bis 100 Gew.-%, noch bevorzugter von 90 bis 100 Gew.-%, noch bevorzugter von 90 bis 99 Gew.-%, am bevorzugtesten von 90 bis 97 Gew.-%, jeweils bezogen auf den ersten Flüssigkeitsgehalt, weniger als der erste Flüssigkeitsgehalt. Bevorzugt liegt der erste Flüssigkeitsgehalt in einem Bereich von 50 bis 97 Gew.-%, bevorzugter von 55 bis 97 Gew.-%, bevorzugter von 60 bis 97 Gew.-%, noch bevorzugter von 65 bis 97 Gew.-%, am bevorzugtesten von 70 bis 97 Gew.-%, jeweils bezogen auf das Gewicht der Rohlingswandung. Der weitere Flüssigkeitsanteil liegt bevorzugt in einem Bereich von 0 bis 25 Gew.-%, bevorzugt von 0 bis 20 Gew.-%, bevorzugter von 3 bis 20 Gew.-%, am bevorzugtesten von 5 bis 15 Gew.-%, jeweils bezogen auf das Gewicht der Behälterschicht.Contributing to the accomplishment of at least one of the objects of the invention is an embodiment 1 of an apparatus including a die apparatus arranged and adapted to form a container blank to obtain a container, the container blank including a blank wall at least partially surrounding a blank interior the blank wall

1. a. a liquid to a first liquid content, and
2. b. a variety of particles

wherein the container includes a container wall at least partially surrounding a container interior, wherein the container wall includes a container layer, wherein the container layer

1. A. the liquid to another liquid content, and
2. B. the large number of particles

includes, wherein the further liquid content is less than the first liquid content. A preferred device is an apparatus for producing a container, preferably the container 2 according to the invention according to one of its embodiments. Here, the first liquid content is given in wt .-% and based on the total weight of the blank wall. The further liquid content is given in wt .-% and based on the total weight of the container layer of the container wall. The container layer is just the layer of the container wall which contains the particles of the plurality of particles and is preferably obtained from the blank wall. Preferably, this obtaining involves separating a part of the liquid from the blank wall. Accordingly, the container layer only partially contains the liquid of the blank wall. Preferably, the further liquid fraction is a value in a range of 50 to 90% by weight, more preferably 50 to 85% by weight, more preferably 50 to 75% by weight, most preferably 55 to 75% by weight. , less than the first liquid fraction. The container blank is preferably formed in one piece. A preferred liquid is water. As a liquid, however, in addition to water, any other suitable for the use of the invention suitable for use according to the invention liquid into consideration. Preferably, the further liquid content is from 50 to 100% by weight, more preferably from 60 to 100% by weight, more preferably from 70 to 100% by weight, even more preferably from 80 to 100% by weight, even more preferably from 90 to 100 Wt .-%, more preferably from 90 to 99 wt .-%, most preferably from 90 to 97 wt .-%, each based on the first liquid content, less than the first liquid content. Preferably, the first liquid content is in a range of 50 to 97 weight percent, more preferably 55 to 97 weight percent, more preferably 60 to 97 weight percent, even more preferably 65 to 97 weight percent, most preferably from 70 to 97 wt .-%, each based on the weight of the blank wall. The further liquid fraction is preferably in a range from 0 to 25 wt .-%, preferably from 0 to 20 wt .-%, more preferably from 3 to 20 wt .-%, most preferably from 5 to 15 wt .-%, each based on the weight of the container layer.

In an embodiment 2 according to the invention, the device is configured according to its embodiment 1, wherein the blank wall has a first average density, wherein the press molding device is arranged and configured to form the container blank so that the container layer has a further average density, wherein a ratio the further average density to the first average density in a range of 2 to 6, preferably 2.2 to 5.8, more preferably from 2.4 to 5.6, more preferably from 2.6 to 5.4, more preferably from 2.8 to 5.2, more preferably from 3.0 to 5.0, more preferably from 3.1 to 4.8, more preferably from 3.2 to 4.6, even more preferably from 3.3 to 4.4, even more preferably from 3.4 to 4.2, even more preferably from 3.5 to 4.0, still more preferably from 3.6 to 3.9, most preferably from 3.65 to 3.85.

In an embodiment 3 according to the invention, the device is designed according to its embodiment 2, wherein the first average density is in a range of 0.1 to 0.8 g / cm ³ , more preferably 0.1 to 0.7 g / cm ³ , more preferably from 0.1 to 0.6 g / cm ³ , more preferably from 0.1 to 0.5 g / cm ³ , even more preferably from 0.1 to 0.4 g / cm ³ , most preferably from 0.1 to 0.3 g / cm ³ , is.

In an embodiment 4 according to the invention, the device according to its embodiment 2 or 3 is designed, the further average density in a range of 0.4 to 2 g / cm ³ , preferably from 0.4 to 1.8 g / cm ³ , more preferably from 0.4 to 1.6 g / cm ³ , more preferably from 0.4 to 1.4 g / cm ³ , more preferably from 0.4 to 1.2 g / cm ³ , more preferably from 0.4 to 1.0 g / cm ³ , more preferably from 0.5 to 0.9 g / cm ³ , most preferably from 0.6 to 0.8 g / cm ³ .

In an embodiment 5 according to the invention, the device is configured according to one of its embodiments 1 to 4, the blank wall having a first specific volume, the press-forming device being arranged and configured to shape the container blank such that the container layer has a further specific volume, wherein a ratio of the first specific volume to the further specific volume in a range from 2 to 6, preferably from 2.2 to 5.8, more preferably from 2.4 to 5.6, more preferably from 2.6 to 5.4, more preferably from 2.8 to 5.2, more preferably from 3.0 to 5.0, more preferably from 3.1 to 4.8, even more preferably from 3.2 to 4.6, even more preferably from 3.3 to 4, 4, more preferably from 3.4 to 4.2, even more preferably from 3.5 to 4.0, even more preferably from 3.6 to 3.9, most preferably from 3.65 to 3.85.

In an embodiment 6 according to the invention, the device is designed according to one of its embodiments 1 to 5, wherein the press-molding device is arranged and designed to form the container blank such that a density of the blank wall is at least 70% of a total surface of the blank wall facing away from the blank interior by a factor in a range of 2 to 6, preferably from 2.2 to 5.8, more preferably from 2.4 to 5.6, more preferably from 2.6 to 5.4, more preferably from 2.8 to 5.2 , more preferably from 3.0 to 5.0, more preferably from 3.1 to 4.8, even more preferably from 3.2 to 4.6, even more preferably from 3.3 to 4.4, even more preferably from 3.4 to 4.2, more preferably from 3.5 to 4.0, even more preferably from 3.6 to 3.9, most preferably from 3.65 to 3.85. Preferably, the press-molding device is arranged and designed to shape the container blank in such a way that the density of the blank-wall is increased at each point of the blank-wall as mentioned above. As a result, the container layer can preferably be obtained from the blank wall.

1. A) einen eine Rohlingsöffnung des Behälterrohlings bildenden Mündungsbereich,
2. B) einen Boden, und
3. C) ein den Mündungsbereich mit dem Boden verbindenden Mantelbereich

beinhaltet, wobei die Pressformeinrichtung dazu angeordnet und ausgebildet ist, den Behälterrohling so zu formen, dass eine Dichte der Rohlingswandung jeweils in dem Mündungsbereich, dem Boden und dem Mantelbereich um einen Faktor in einem Bereich von 2 bis 6, bevorzugt von 2,2 bis 5,8, bevorzugter von 2,4 bis 5,6, bevorzugter von 2,6 bis 5,4, bevorzugter von 2,8 bis 5,2, bevorzugter von 3,0 bis 5,0, bevorzugter von 3,1 bis 4,8, noch bevorzugter von 3,2 bis 4,6, noch bevorzugter von 3,3 bis 4,4, noch bevorzugter von 3,4 bis 4,2, noch bevorzugter von 3,5 bis 4,0, noch bevorzugter von 3,6 bis 3,9, am bevorzugtesten von 3,65 bis 3,85, vergrößert wird. Hierdurch kann vorzugsweise die Behälterschicht aus der Rohlingswandung erhalten werden.In an embodiment 7 according to the invention, the device according to one of its embodiments 1 to 6 is configured, wherein the blank wall

1. A) a mouth region forming a blank opening of the container blank,
2. B) a floor, and
3. C) a jacket region connecting the mouth region to the bottom

wherein the press molding apparatus is arranged and configured to form the container blank such that a density of the blank wall in each of the mouth region, the bottom and the cladding region is increased by a factor in a range of 2 to 6, preferably 2.2 to 5 , 8, more preferably from 2.4 to 5.6, more preferably from 2.6 to 5.4, more preferably from 2.8 to 5.2, even more preferably from 3.0 to 5.0, even more preferably from 3.1 to 4 , 8, more preferably from 3.2 to 4.6, even more preferably from 3.3 to 4.4, even more preferably from 3.4 to 4.2, even more preferably from 3.5 to 4.0, even more preferably from 3.6 to 3.9, most preferably from 3.65 to 3.85. As a result, the container layer can preferably be obtained from the blank wall.

In an embodiment 8 according to the invention, the device is designed according to one of its embodiments 1 to 7, wherein the press-forming device is arranged and configured to form the container blank such that the container layer is at least 70%, preferably at least 80%, more preferably at least 90 %, most preferably at least 95%, each of a total of the container interior surface facing away from the surface of the container layer has a density in a range of 0.4 to 2.0 g / cm ³ , preferably from 0.4 to 1.8 g / cm ³ , more preferably from 0.4 to 1.6 g / cm ³ , more preferably from 0.4 to 1.4 g / cm ³ , more preferably from 0.4 to 1.2 g / cm ³ , more preferably from 0.4 to 1 , 0 g / cm ³ , more preferably from 0.5 to 0.9 g / cm ³ , most preferably from 0.6 to 0.8 g / cm ³ .

In an embodiment 9 according to the invention, the device is designed according to one of its embodiments 1 to 8, wherein the compression molding device is arranged and designed to form the container blank so that a thickness of the blank wall by a factor in the range of 1/7 to 1 / 2, preferably from 1/6 to 1/2, more preferably from 1/6 to 1/3, most preferably from 1/6 to 1/4. Preferably, the press-molding device is arranged and designed to reduce an average thickness of the blank wall by the aforementioned factor. Further preferably, the compression molding device is arranged and designed to reduce the blank wall at any point by the aforementioned factor. In a further preferred embodiment of the device, the press-molding device is arranged and designed to reduce the thickness of the blank wall in a bottom and a jacket region of the container blank by the aforementioned factor.

1. a. eine erste Negativform, beinhaltend
   1. A) eine einen ersten Forminnenraum teilweise umgebende erste Formwand, und
   2. B) eine den ersten Forminnenraum mit einer Umgebung der ersten Negativform verbindende erste Formöffnung; und
2. b. eine Fluidzuführung, beinhaltend
   1. A) eine Pumpvorrichtung, und
   2. B) eine Fluidzuleitung,
   beinhaltet; wobei die erste Formwand mindestens teilweise
   1. A. für die Flüssigkeit durchlässig, und
   2. B. für die Partikel der Vielzahl von Partikeln im Vergleich zu der Flüssigkeit weniger durchlässig, bevorzugt undurchlässig,

ist; wobei die erste Negativform eine Negativform mindestens eines Teils des Behälterrohlings ist; wobei die Fluidzuführung dazu angeordnet und ausgebildet, eine Zusammensetzung, beinhaltend die Vielzahl der Partikel und die Flüssigkeit, durch die erste Formöffnung in den ersten Forminnenraum einzubringen. Als Fluidzuleitung kommt jedes dem Fachmann geeignet erscheinende fluidleitende Element in Betracht. Eine bevorzugte Fluidzuleitung ist ausgewählt aus der Gruppe, bestehend aus einem Schlauch, einem Rohr, und einer Lanze, oder eine Kombination aus mindestens zwei davon. Der erste Forminnenraum hat in einer Ebene senkrecht zu einer Höhe des ersten Forminnenraums bevorzugt einen maximalen Durchmesser, wobei der erste Forminnenraum in Richtung von der Ebene zu der ersten Formöffnung mindestens abschnittsweise einen Durchmesser hat, der weniger ist als der maximale Durchmesser des ersten Forminnenraums. Vorzugsweise gibt die erste Negativform durch eine Ausgestaltung einer dem ersten Forminnenraum zugewandten Oberfläche der ersten Formwand eine Form einer Rohlingswandung des Behälterrohlings vor. Die Rohlingswandung weist bevorzugt eine Rohlingsöffnung auf, wobei der Rohlingsinnenraum in einer Ebene senkrecht zu einer Höhe des Rohlingsinnenraums einen maximalen Durchmesser hat, wobei der Rohlingsinnenraum in Richtung von der Ebene zu der Rohlingsöffnung mindestens abschnittsweise einen Durchmesser hat, der weniger ist als der maximale Durchmesser des Rohlingsinnenraums. Die Höhe des Rohlingsinnenraums ist vorzugsweise eine größte Ausdehnung des Rohlingsinnenraums in einer kartesischen Raumrichtung. Ferner bevorzugt erstreckt sich die Höhe des Rohlingsinnenraums von der Rohlingsöffnung zu einem der Rohlingsöffnung gegenüberliegenden Abschnitt der Rohlingswandung, welcher bevorzugt ein Boden des Behälterrohlings ist. Der Behälterrohling ist bevorzugt einstückig ausgebildet. Bevorzugt ist die erste Negativform stromauf der Pressformeinrichtung angeordnet.In an embodiment 10 according to the invention, the device according to one of its embodiments 1 to 9 is configured, wherein the device additionally

1. a. a first negative form, including
   1. A) a first mold cavity partially surrounding the first mold wall, and
   2. B) a first mold opening connecting the first mold interior with an environment of the first mold; and
2. b. a fluid supply, including
   1. A) a pumping device, and
   2. B) a fluid supply line,
   includes; wherein the first mold wall is at least partially
   1. A. permeable to the liquid, and
   2. B. less permeable to the particles of the plurality of particles compared to the liquid, preferably impermeable,

is; wherein the first female mold is a female mold of at least a portion of the container blank; wherein the fluid supply is arranged and configured to introduce a composition including the plurality of particles and the liquid through the first mold opening into the first mold interior. As a fluid supply, any suitable to those skilled appear fluid-conducting element into consideration. A preferred fluid feed line is selected from the group consisting of a tube, a tube, and a lance, or a combination of at least two thereof. The first mold interior preferably has a maximum diameter in a plane perpendicular to a height of the first mold interior, wherein the first mold interior in the direction from the plane to the first mold opening at least partially has a diameter which is less than the maximum diameter of the first mold interior. By means of a design of a surface of the first mold wall facing the first mold interior, the first negative mold preferably presents a shape of a blank wall of the container blank. The blank wall preferably has a blank opening, the blank interior having a maximum diameter in a plane perpendicular to a height of the blank interior, the blank interior having at least sections a diameter in the direction from the plane to the blank opening which is less than the maximum diameter of the blank blank inner space. The height of the blank interior is preferably a maximum extent of the blank interior in a Cartesian spatial direction. Further preferably, the height of the blank interior extends from the blank opening to a portion of the blank wall opposite the blank opening, which is preferably a bottom of the container blank. The container blank is preferably formed in one piece. The first negative mold is preferably arranged upstream of the press mold device.

Preferably, the apparatus includes a first press means feed, said first press means feed arranged and configured to increase a pressure in the first mold interior by supplying a press means so that the particles of the first plurality of particles in the composition in the first mold interior oppose the first mold Mold wall to be pressed. Here, the first pressing agent supply is preferably formed so that the pressing means at a temperature in a range of 20 to 300 ° C, more preferably 21 to 280 ° C, most preferably 22 to 260 ° C, by means of the first pressing agent supply into the first mold interior can be supplied. The first pressing agent supply may be the fluid supply of the embodiment 10 of the device according to the invention or an additional pressing agent supply. A preferred pressing means is a fluid, preferably a gas or a liquid.

Additionally or alternatively, preferably, the apparatus includes a first solid body arranged and configured to press the particles of the plurality of particles in the composition in the first mold interior against the first mold wall. Here, the first solid is preferably formed to be at a temperature in a range of 20 to 300 ° C, more preferably 30 to 300 ° C, more preferably 50 to 300 ° C, more preferably 100 to 260 ° C, more preferably 120 to 230 ° C, most preferably from 160 to 200 ° C, can be heated.

Preferably, the first solid body is a first hollow body, wherein the first hollow body includes an elastically deformable wall. Preferably, the apparatus further includes a first pressing means feed arranged and configured to provide a pressure in the first hollow body to increase. Here, the first pressing agent supply and the first hollow body are preferably formed so that a pressing means having a temperature in a range of 50 to 300 ° C, preferably from 100 to 260 ° C, more preferably from 120 to 230 ° C, most preferably from 160 to 200 ° C, can be introduced by means of the first pressing agent supply in the first hollow body. The first pressing agent supply may be the fluid supply of the embodiment 10 of the device according to the invention or an additional pressing agent supply. A preferred pressing means is a fluid, preferably a gas or a liquid.

1. A) für die Flüssigkeit durchlässig, und
2. B) für die Partikel der Vielzahl von Partikeln im Vergleich zu der Flüssigkeit weniger durchlässig, bevorzugt undurchlässig,

ist, wobei die weitere Negativform eine Negativform mindestens eines Teils des Behälters ist. Eine bevorzugte weitere Negativform ist eine Heißpressform. Die Behälterwandung weist bevorzugt eine Behälteröffnung auf, wobei der Behälterinnenraum in einer Ebene senkrecht zu einer Höhe des Behälterinnenraums einen maximalen Durchmesser hat, wobei der Behälterinnenraum in Richtung von der Ebene zu der Behälteröffnung mindestens abschnittsweise einen Durchmesser hat, der weniger ist als der maximale Durchmesser des Behälterinnenraums. Die Behälterwandung beinhaltet vorzugsweise eine Behälterschicht, welche in dem Verfahrensschritt d) aus der Rohlingswandung erhalten wird. Bevorzugt ist die weitere Negativform stromab der ersten Negativform angeordnet.In one embodiment 11 according to the invention, the device according to one of its embodiments 1 to 10 is configured, wherein the press molding device includes a further negative mold, including a further mold interior at least partially surrounding another mold wall, wherein the further mold wall at least partially

1. A) permeable to the liquid, and
2. B) less permeable, preferably impermeable, to the particles of the plurality of particles compared to the liquid

is, wherein the further negative mold is a negative mold of at least a portion of the container. A preferred further negative mold is a hot press mold. The container wall preferably has a container opening, wherein the container interior has a maximum diameter in a plane perpendicular to a height of the container interior, wherein the container interior in the direction from the plane to the container opening at least partially has a diameter which is less than the maximum diameter of container interior. The container wall preferably contains a container layer, which is obtained in process step d) from the blank wall. Preferably, the further negative mold is arranged downstream of the first negative mold.

In an embodiment 12 according to the invention, the device is designed according to its embodiment 11, wherein the further mold wall on a side facing the further mold interior a bending radius of less than 10 mm, preferably less than 9 mm, more preferably less than 8 mm, most preferably less than 7 mm, includes.

In an embodiment 13 according to the invention, the device according to one of its embodiments 1 to 12 is configured, wherein the press molding device includes a first mold and a further mold, wherein the first mold and the further mold are arranged and designed to be movable relative to each other in a first direction, so that at least a portion of the blank wall between the first mold and the further mold can be pressed in the first direction such that a density of the at least one part of the blank wall by a factor of at most 3, preferably of at most 2.5, more preferably of a maximum of 2, more preferably of at most 1.7, most preferably of at most 1.5, wherein the first molding tool or the further molding tool or both is adapted to at least a portion of the blank wall in at least one further direction to obtain at least a portion of Container layer to pre Ssen, wherein the at least one first direction is different from the at least one further direction. Preferably, the further mold includes the further negative mold. The at least one part of the blank wall is preferably a mouth opening forming a blank opening of the container blank. The at least one part of the container wall is preferably a mouth region of the container forming a container opening.

In an embodiment 14 according to the invention, the device according to its embodiment 13 is configured, wherein the at least one first direction or the at least one further direction is a direction along a height of the container blank.

In an embodiment 15 according to the invention, the device according to one of its embodiments 10 to 14 configured, wherein the first negative mold includes at least a first molded part and another molded part, wherein the first negative mold is formed so that the first negative mold by separating the first molded part of the further molded part can be opened to a demolding of the container blank.

In an embodiment 16 according to the invention, the device is configured according to one of its embodiments 10 to 15, wherein the device further comprises a suction device, wherein the suction device is arranged and adapted to suck the liquid of the composition in the first mold interior at least partially through the first mold wall ,

In an embodiment 17 according to the invention, the device according to one of its embodiments 10 to 16 is configured, wherein the first mold wall includes a first plurality of openings which connect the first mold interior with an environment of the first negative mold.

In an embodiment 18 according to the invention, the device according to one of its embodiments 11 to 17 is configured, wherein the Device further comprising a pressing means supply, wherein the pressing means supply is arranged and adapted to increase by supplying a pressing means, a pressure in the further mold interior so that the at least partially received in the further mold interior container blank is pressed against the further mold wall. A preferred pressing means is a fluid, preferably a gas such as compressed air, or a liquid such as an oil, or both. Here, the pressing agent supply is preferably formed so that the pressing means at a temperature in a range 50 to 300 ° C, preferably from 100 to 260 ° C, more preferably from 120 to 230 ° C, most preferably from 160 to 200 ° C, by means of Pressmittelzuführung can be supplied in the other mold interior. When the apparatus includes the above-mentioned first pressing means feed, the pressing means feed of the embodiment 18 is preferably another pressing means feed.

In an embodiment 19 according to the invention, the device according to one of its embodiments 11 to 18 is configured, wherein the press molding device further includes a solid body which is arranged and configured to press the container blank received at least partially in the further mold interior against the further mold wall. Here, the solid is preferably formed to be at a temperature in a range of 20 to 300 ° C, more preferably 30 to 300 ° C, more preferably 50 to 300 ° C, more preferably 100 to 260 ° C, more preferably 120 to 230 ° C, most preferably from 160 to 200 ° C, can be heated. If the device includes the above first solid, the solid of Embodiment 19 is preferably another solid.

In an embodiment 20 according to the invention, the device according to its embodiment 19 is configured, wherein the solid body is a hollow body, wherein the hollow body includes an elastically deformable wall. Preferably, the device further includes a further pressing means feed arranged and adapted to increase a pressure in the hollow body by supplying a pressing means. Here, the further pressing agent supply and the hollow body are preferably formed so that a pressing means having a temperature in a range of 50 to 300 ° C, preferably from 100 to 260 ° C, more preferably from 120 to 230 ° C, most preferably from 160 to 200 ° C, can be introduced by means of the further pressing agent supply in the hollow body. When the apparatus includes the above-mentioned first pressing agent supply, the pressing agent supply of the embodiment 20 is preferably another pressing agent supply. If the device includes the above-mentioned first hollow body, the hollow body of embodiment 20 is preferably a further hollow body.

In an embodiment 21 according to the invention, the device according to one of its embodiments 11 to 20 is configured, wherein the further mold wall includes a further plurality of openings which connect the further mold interior with an environment of the further negative mold.

In an embodiment 22 according to the invention, the device is configured according to one of its embodiments 11 to 21, the device further comprising a heating device arranged and configured to maintain a temperature of the further mold wall or the solid or both at a temperature in a range of 50 to 300 ° C, preferably from 100 to 260 ° C, more preferably from 120 to 230 ° C, most preferably from 160 to 200 ° C, increase.

In an embodiment 23 according to the invention, the device is designed according to one of its embodiments 1 to 22, wherein the device includes a coating device, wherein the coating device is arranged and designed to superimpose the container layer with a polymer layer. The coating device is preferably arranged downstream of the further negative mold. A preferred coating device is a powder coating system.

In an embodiment 24 according to the invention, the device is designed according to its embodiment 23, wherein the coating device is arranged and designed to superimpose the container layer on a side of the container layer facing the container interior or on a side of the container layer facing away from the container interior or both with the polymer layer ,

In an embodiment 25 according to the invention, the device is designed according to one of its embodiments 1 to 24, the device being designed to carry out the method 1 according to one of its embodiments. Preferably, the device is designed for producing a container.

A contribution to the fulfillment of at least one of the objects according to the invention is afforded by an embodiment 1 of a use 1 of a filling machine for filling and closing the container 1 or 2, in each case according to one of its embodiments. Preferably, the filling machine is used for carrying out the method 2 according to one embodiment of the invention. As a filling machine in this case a machine or an automatic machine is referred to the Filling a fluid, preferably a food or a drug or both, is formed in a plurality of containers according to the invention. Furthermore, the filling machine is preferably designed to close the containers after filling. Here, the filling or closing or both preferably preferably largely automated.

A contribution to the fulfillment of at least one of the objects according to the invention is afforded by an embodiment 1 of a use 2 of the container 1 or 2, according to one of its embodiments, or the closed container for storing a fluid, preferably a foodstuff or a drug or both. The storage is preferably carried out at an ambient temperature in a range of 1 to 18 ° C, more preferably from 3 to 15 ° C, most preferably from 5 to 15 ° C. Furthermore, the storage can take place in the long term in a warehouse, or even for offering in a sales room, or for transporting the container.

Contributing to the achievement of at least one of the objects of the present invention is an embodiment 1 of using 3 a plurality of fibers in a pulp, the pulp including the plurality of fibers and a liquid, to produce the container 1 or 2 according to one of its embodiments.

In an embodiment 2 according to the invention, the use 3 is designed according to its embodiment 2, the pulp comprising solids and optionally solid-forming additives together in a proportion in a range from 0.1 to 5.0% by weight, preferably from 0.1 to 4 , 5 wt .-%, more preferably from 0.1 to 4.0 wt .-%, more preferably from 0.1 to 3.5 wt .-%, more preferably from 0.1 to 3.0 wt .-%, more preferably from 0.1 to 2.5% by weight, more preferably from 0.1 to 2.0% by weight, more preferably from 0.3 to 2.0% by weight, more preferably from 0.3 to 2.0 Wt%, more preferably from 0.3 to 1.8 wt%, more preferably from 0.3 to 1.6 wt%, more preferably from 0.5 to 1.6 wt%, more preferably from 0 , 5 to 1.4 wt .-%, most preferably from 0.5 to 1.2 wt .-%, each based on the total weight of the pulp includes. The solids preferably include the particles of the plurality of particles or are the particles of the plurality of particles.

Contributing to the achievement of at least one of the objects of the invention is an embodiment 1 of using 4 a plurality of fibers in a pulp as the composition in the method 1 according to one of its embodiments.

Features which are described as preferred in a category according to the invention, for example after the container 2, are also preferred in one embodiment of the further categories according to the invention, for example an embodiment of the method 1 according to the invention.

container

For the container according to the invention is basically any known in the art and in the context of the invention, in particular for food or drug container, appear suitable container shape into consideration. In this case, the container according to the invention, in particular by the presence of the container layer, dimensionally stable and rigid. A container is an article having in its interior a cavity which serves in particular the purpose of separating its contents from its environment. A vessel is an article with a stiff and rigid shell that can hold a content of varying consistency. Accordingly, a distinction must generally be made between containers and containers. A container is preferably relatively dense for a medium for which it is designed, but not necessarily for other media. The container according to the invention is preferably a container for a fluid. A preferred fluid here is a granulate or a liquid, with a liquid being particularly preferred. Furthermore, the container according to the invention is preferably also a vessel. Preferably, the container wall includes a container opening. The container opening is preferably arranged and adapted to remove a content of the container from the container interior, preferably by pouring or pouring or both. Here, a ratio of a surface area of an opening area of the container opening to an area of an entire surface of the container wall facing away from the container interior is preferably in a range of 0.001 to 0.2. Further preferably, the container blank includes a blank opening from which the container opening is available. Here, a ratio of a surface area of an opening area of the blank opening to a surface area of an entire surface of the blank wall facing away from the blank interior is in a range of 0.001 to 0.2.

The container according to the invention preferably includes a container wall partially surrounding a container wall, the container wall having a container opening, wherein the container interior in a plane perpendicular to a height of the container interior has a maximum diameter, wherein the container interior in the direction of the plane to the container opening at least partially a Diameter less than the maximum diameter of the container interior. The height of the container interior is preferably a maximum extent of the container interior in a Cartesian spatial direction. Further preferably, the height of the container interior extends from the container opening to a portion of the container wall opposite the container opening, which is preferably a bottom of the container. Accordingly, the container interior tapers at least in sections in the direction from the plane of the maximum diameter of the container interior to the container opening.

Particularly preferably, the container according to the invention is designed as a bottle. Also, the container blank preferably already has the shape of a bottle. According to the above definitions, a bottle is a container for a fluid and at the same time a vessel. Bottles typically, but not necessarily, have a relatively small maximum outside diameter and a flat bottom relative to their height. The bottom is preferably opposite to a bottle opening, which in the case of the bottle as a container is the above container opening, arranged opposite. Here, the height of the bottle is preferably a factor of at least 2 more than a maximum outer diameter of the bottle in a plane perpendicular to the height. The flat bottom is preferably designed to be able to park the bottle on a flat surface with a stable state. Bottles typically have a bottle body and mouth area. The bottle body is configured to provide an internal volume for receiving a fluid. For this purpose, the bottle body preferably forms at least 80% of a volume of the bottle interior. The mouth region forms a bottle opening which, in the case of the bottle as a container, is the above container opening. Furthermore, the bottle often, but not necessarily, includes a bottle neck connecting the bottle body with the mouth area. The bottleneck is configured to connect the bottle body to the mouth region so that fluid can flow from the bottle body into the mouth region. The bottleneck preferably has a smaller inside diameter than the bottle body at any point and further preferably also the mouth area of the bottle. Here, the inner diameter of the mouth region may be larger, smaller or equal to the maximum inner diameter of the bottle body.

The container wall or the container layer or both of the container according to the invention is preferably formed in one piece. In this connection, the container wall or the container layer, or both, preferably has no joining point. Here, a joint is an area in which, in the sense of the standard DIN 8580, two or more separate parts have been joined together. For this purpose, the joint may have a substance which has been used for joining as a shapeless substance. Exemplary shapeless fabrics are adhesives and sealants. Exemplary types of joining are gluing, sealing and pressing. A hemming site is often an elongate area, often encircling the container in its longitudinal or transverse direction, or along its height, also referred to as a seam. Further preferably, the container wall or the container layer, or both, also has no joining point at which a part has been joined to itself. Particularly preferably, the container according to the invention is designed as a bottle whose bottom or mouth region or both is formed integrally with the bottle body. Further preferably, the bottle body is formed as such in one piece. Further preferably, the bottle body does not include a hemming point.

mouth area

The container wall preferably includes an opening region of the container. This mouth region forms in particular an opening, also referred to herein as a container opening, of the container. This opening is preferably designed for pouring or pouring or both of a container contents. In the case of a bottle as a container, the bottle body usually goes over a bottleneck in the mouth area over. The mouth region is in this case just the region of the container wall, which forms the opening of the container. Often the mouth region includes a thread for screwing on a lid on a side facing away from the container interior. Furthermore, the mouth region can surround the opening in a wreath-like manner. In particular, the mouth area of a bottle as a container is the area of the container wall which usually comes into contact with the lips when drinking directly from the bottle by applying the lips to the bottle. The mouth region of the container is preferably available from an opening region of the container blank. In this case, furthermore, the container opening is preferably obtainable from a blank opening which is formed in the mouth region of the container blank by the blank wall.

container

The container wall of the container according to the invention may contain, in addition to the container layer, further layers such as polymer layers, for example the polymer inner layer or the polymer outer layer or both. Consequently, the container wall is preferably formed as a two- or multi-layer composite comprising at least the container layer and a further layer, preferably a polymer layer, as a layer sequence. A wording in which a Layer sequence includes enumerated layers, means that at least the specified layers are present in the order given. This formulation does not necessarily mean that these layers follow one another directly. 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 two layers adjoin one another or one of the layers is coated on the other means that these two layers follow one another directly and thus without an intermediate layer. Furthermore, layers coated on one another are connected to one another. Two layers are bonded together when their adhesion to each other goes beyond van der Waals attractions.

container layer

The container layer of the container according to the invention gives it a rigid shape and mechanical stability. In this case, the container layer essentially predetermines the shape of the container. The container layer is preferably the layer of the container wall, which serves as a rigid and rigid shell, which preferably also makes the container according to the invention into a vessel. Further preferably, the container layer has a metal content of less than 20 wt%, more preferably less than 10 wt%, most preferably less than 5 wt%, each based on the weight of the container layer. Particularly preferably, the container layer is substantially free of metal. In the event that the container wall contains at least one further layer in addition to the container layer, the container layer preferably serves as a carrier for these further layers of the container wall, in particular for the polymer inner layer or also the polymer outer layer or both. In this case, the container layer according to the invention does not include any folding and no fold. Preferably, the container layer would be at a moisture content of 7% by weight in an attempt to fold or crimp this layer through an angle of 90 °. Preferably, the container layer extends over the entire surface of the container wall. Particularly preferably, the container layer is integrally formed. In this context, the container layer preferably does not have a place of diffusion. Particularly preferably, the container layer, very particularly preferably in one piece, is obtained from a pulp as composition. For this purpose, the pulp was preferably at least partially dewatered, molded, pressed and heated. The container layer preferably has a water absorption in a range of 0 to 20 wt .-%, preferably from 0 to 15 wt .-%, more preferably 0 to 10 wt .-%, of its dry weight.

composition

Any composition which appears suitable to the person skilled in the art for the process according to the invention is suitable as the composition. The composition is preferably fluid, ie flowable. A preferred fluid composition is a suspension. Preferably, the composition in process step b) or c) or in both has a pH in a range from 6 to 8.5, preferably from 7 to 8. A particularly preferred composition is also referred to as pulp. This is a known in the paper, board or board industry liquid to mushy mass. This includes the plurality of particles preferably as a plurality of fibers. Accordingly, the pulp is preferably a pulp or a fiber-containing suspension. In this case, the slurry or the suspension is preferably aqueous. As a liquid, however, besides water, any other liquid suitable for use in the composition is considered. It is important that the liquid makes the composition flowable.

Particles / fibers

Suitable particles of the multiplicity of particles in the composition or of the container layer or both are all particles which appear suitable to the person skilled in the art for the use according to the invention. The particles are preferably elongated. Preferred particles are fibers. Suitable fibers are all fibers which appear suitable to the person skilled in the art for the use according to the invention, in particular all fibers known in paper, board or paperboard production. Fibers are linear, elongated structures having a length to diameter or thickness ratio of at least 3: 1. For some fibers, the aforementioned ratio is no greater than 10: 1. Preferred fibers are vegetable fibers. Plant fiber is a collective term for fibers of plant origin. Plant fibers occur in plants as vascular bundles in the stem or trunk, the bark (as a bast) and seed extensions. A subdivision takes place after DIN 60001-1: 2001-05 Textile fibers - Part 1: "Natural fibers and abbreviations", Beuth Verlag, Berlin 2001, p. 2 in seed fibers, bast fibers and hard fibers or after DIN EN ISO 6938: 2015-01 "Textiles - natural fibers - generic names and definitions", Beuth Verlag, Berlin 2015, p. 4. in seed fibers, bast fibers, leaf fibers and fruit fibers, which thus makes a division of the hard fibers. Fibers preferred in the invention include pulp or wood pulp or both, preferably the fibers are composed thereof. Preferred fibers have an average fiber length in a range of 0.5 to 5 mm, more preferably from 0.5 to 4 mm, more preferably from 1 to 3 mm, most preferably from 1 to 2 mm.

cellulose

Pulp is usually referred to as the resulting fibrous mass in the chemical pulping of plant fibers, which typically consists predominantly of cellulose.

wood pulp

Wood pulp is the name given to the material commonly used for the manufacture of certain types of paper. It is made of wood and, unlike pulp, usually contains larger amounts of lignin. Wood pulp can be detected by red coloration of the contained lignin with hydrochloric acid solution of phloroglucin and thus differentiated from pulp. Wursters Blue and Red (after Casimir Wurster) and aniline sulfate were also frequently used. The higher lignin content of the wood pulp may lead to yellowing of the paper produced from the pulp paper (wood-containing paper). The wood from which the pulp is derived usually consists mainly of lignocellulose. Lignocellulose consists of cellulose molecules, which are assembled to fibers. A matrix of lignin permeates the cellulose, resulting in a pressure- and tear-resistant composite. In the production of wood pulp, the wood is defibered by various methods. The production of wood pulp is carried out by mechanical and / or thermal and / or chemical processes for wood pulping. According to these types of production, a distinction is made mechanical pulp (MP - mechanical pulp), which is produced by only mechanical processes for wood pulping; and thermomechanical pulp (TMP) produced by wood pulping processes involving mechanical and thermal and optionally also chemical steps. The aforementioned wood pulping methods, which include mechanical and thermal and optionally also chemical steps, are also referred to as refining processes. A preferred thermomechanical pulp is a chemithermo-mechanical pulp (CTMP). The mechanical processes for wood pulping include in particular grinding processes such as groundwood and pressure groundwood. Preferred within the scope of the invention is mechanical pulp. A preferred mechanical pulp is a groundwood or a pressure groundwood or both. Alternatively or additionally preferably, the wood pulp is made of a softwood. Soft wood, in contrast to hardwood, means lighter wood, for example with a density of less than 0.55 g / cm ³ (for example, willow, poplar, linden and almost all softwood plants). A particularly preferred softwood is spruce wood. The term softwood should not be equated with the English term "softwood". "Softwood" must be correctly translated into German with softwood and therefore refers primarily to the origin of the wood and only indirectly the wood properties, since there are also relatively hard softwoods.

polymer layers

The container wall of the container according to the invention may contain, in addition to the container layer, one or more polymer layers which at least partially overlay the container layer. Thus, one or more polymer layers can superimpose the container layer on a side facing away from the container interior or on a side facing the container interior or on both. Suitable polymer layers are layers of all polymers and polymer mixtures which are known to the person skilled in the art and appear suitable for the container and its applications, as well as mixtures of polymers with further constituents. The process 1 preferably comprises after its process step d) a superposition of the container layer with the aforementioned polymer layers, so that the container is obtainable according to the process. In a preferred embodiment of the container according to the invention, a polymer outer layer superimposed on the container layer on a side facing away from the container interior side at least partially. In a preferred embodiment of the method 1 according to the invention, this includes, after method step d), a method step comprising at least partially superimposing the container layer on a side facing away from the container interior with the polymer outer layer. In a preferred embodiment of the container according to the invention, the container contains the polymer outer layer in a proportion of less than a value in a range from 2 to 15 wt .-%, preferably from 3 to 12 wt .-%, more preferably from 4 to 8 wt. -%, in each case based on the total weight of the container. Additionally or alternatively, the container layer is preferably from 1 to 100%, more preferably from 1 to 90%, more preferably from 1 to 80%, more preferably from 1 to 70%, even more preferably from 1 to 60%, more preferably from 1 to 50% to 1 to 40%, more preferably from 1 to 30%, more preferably from 3 to 20%, most preferably from 5 to 15%, each of their surface facing away from the container interior, superposed with the polymer outer layer. Additionally or alternatively, the container wall includes an opening region forming an opening, wherein the container layer is superimposed on the polymer outer layer at least in the entire mouth region. In a preferred embodiment of the container according to the invention, a polymer inner layer at least partially overlays the container layer on a side facing the container interior. In a preferred embodiment of the method 1 according to the invention, this includes, after method step d), a method step comprising at least partially superimposing the container layer on a side facing the container interior with the polymer inner layer. In a preferred embodiment of the container according to the invention, the container contains the polymer inner layer in a proportion in a range of 5 to 45 wt .-%, preferably from 5 to 40 wt .-%, more preferably from 5 to 35 wt .-%, more preferably from 5 to 30 wt .-%, most preferably from 10 to 25 wt .-%, each based on the total weight of the container. Additionally or alternatively, the container layer is preferably 50 to 100%, more preferably 60 to 100%, more preferably 70 to 100%, more preferably 80 to 100%, even more preferably 90 to 100%, most preferably 95 to 100%, each of their the container interior facing surface, superimposed with the polymer inner layer. The polymer inner layer or outer polymer layer, or both, preferably contains a polymer in an amount ranging from 50 to 100% by weight, preferably from 60 to 100% by weight, more preferably from 70 to 100% by weight, more preferably from 80 to 100 wt .-%, most preferably from 90 to 100 wt .-%, each based on the weight of the respective polymer layer. The polymer inner layer or the outer polymer layer, or both, preferably has an average layer thickness in a range of 1 to 100 μm, preferably 10 to 100 μm, more preferably 20 to 100 μm.

An edge formed by the container wall preferably runs around the container opening of the container according to the invention. In the case of a circular container opening, the edge is preferably formed as a circular ring. The edge is not clearly assigned to an inside or outside of the container. So it remains open whether this edge faces the container interior or facing away from this. Consequently, this edge may be superimposed with the polymer inner layer or the polymer outer layer or both. If the container layer is superimposed on the edge with the polymer inner layer or the polymer outer layer or both, preferably a closure, preferably in the form of a film, can be connected to the container by sealing via the inner polymer layer or the outer polymer layer or both as sealant.

polymer

As the polymer of the polymer layers described above, in particular the polymer inner layer and the polymer outer layer, any polymer known to those skilled in the art and suitable for the use according to the invention is considered. The polymer of the inner polymer layer is particularly preferably adapted to be in contact with a foodstuff. Polymers that are useful in the container of the invention for sufficient water-tightness to retain aqueous liquids in the container over a period of several weeks or even several months are preferred herein. Further preferably, the polymer can be coated onto the container layer by means of a suitable method, for example by emulsion, dispersion or powder coating, so that a most homogeneous and closed layer is obtained. Here, the powder coating is particularly preferred. The polymer is preferably one selected from the group consisting of a polycondensate, a polyolefin, and a polyvinyl alcohol, or a combination of at least two thereof. A preferred polyolefin is a polyethylene (PE) or a polypropylene (PP) or both. A preferred polycondensate is a polyester or polyamide (PA) or both. A preferred polyester is a polyalkylene terephthalate or a polylactide (PLA, colloquially also called polylactic acid) or both. A preferred polyalkylene terephthalate is a polybutylene terephthalate (PBT) or a polyethylene terephthalate (PET). A preferred polyvinyl alcohol is a vinyl alcohol copolymer. A preferred vinyl alcohol copolymer is an ethylene-vinyl alcohol copolymer (EVOH).

container blank

From the container blank preferably the container 2 described herein according to the invention is available, preferably according to the inventive method 1, the use 3 or 4. The container blank preferably already has substantially the shape of the container to be produced from the container blank. In this case, however, the blank wall of the container blank preferably still does not have the rigidity of the container layer of the container obtainable therefrom.

The container blank preferably includes a blank wall partially surrounding a blank interior, the blank wall having a blank opening, wherein the blank interior in a plane perpendicular to a height of the blank interior has a maximum diameter, wherein the blank interior in the direction from the plane to the blank opening at least partially a diameter which is less than the maximum diameter of the blank interior. The height of the blank interior is preferably a maximum extent of the blank interior in a Cartesian spatial direction. Further preferably, the height of the blank interior extends from the blank opening to a portion of the blank wall opposite the blank opening, which is preferably a bottom of the container blank. Accordingly, the rejuvenated Blank interior at least in sections in the direction from the plane of the maximum diameter of the blank interior to the blank opening. The region of the blank wall which forms the blank opening is also referred to herein as the mouth region. The blank wall is preferably formed in one piece. In this context, the blank wall preferably has no joint. What is meant by a h joint is described above to the container and applies analogously here. Particularly preferably, the container blank is formed as a bottle whose bottom or mouth region or both is formed integrally with the bottle body. Further preferably, the bottle body is formed as such in one piece. Further preferably, the bottle body does not include a hemming point. Other preferred forms are described above for the container.

fluid

Herein, a fluid is understood to mean a fluid medium. These include in particular liquids; gases; and granular matter such as powder, powder or granules; and mixtures of at least two of the foregoing. A preferred fluid to be filled or stored in the container of the invention is a food or a drug or both. A preferred fluid which is introduced into a mold interior or into a hollow body is a gas, preferably air, or a liquid, preferably an oil, or both.

Folding / fold

Folding is the production of a sharp bend edge, which fold (also fold line or fold break) is called. In the case of folding, this is done by means of a tool or a machine. If the bending edge is created without tools, one speaks of folds and designates the bend edge as folding. Folding or folding typically occurs along creases or grooves. By folding / folding, the corresponding layer is typically weakened in its mechanical integrity along the fold / fold such that portions of the layer adjacent the fold / fold can be hinged against each other by reducing an angle subtended by the regions , In this case, the areas are at an angle of 0 ° to each other. In the case of fibrous layers, the fibers are usually at least partially broken along the fold. The container layer according to the invention preferably contains no fold and no fold.

shutter

As a closure for the container according to the invention or the closed container, any closure known to the person skilled in the art and appearing suitable for the respective container is considered. Here, the closure can be constructed in one or more parts. The closure is adapted to close an opening of the container. For this purpose, the closure is designed to cover the opening and the opening to be connected to the container overlapping. The connection can be made here, for example, by screwing, sealing or pressing. A preferred closure includes a lid. A preferred lid is a screw cap or bottle cap or both. Additionally or alternatively, the closure preferably includes a foil. The film is preferably made of a plastic or a metal, or both, and is also preferably bonded to the container, more preferably sealed or glued, or both. In this case, the film may in particular consist of a multilayer composite. A preferred lid is made of a plastic or a metal or both.

powder coating

Powder coating is a coating process in which a material is coated with a powder, preferably a polymer powder, by means of electrostatic attraction forces. For this purpose, an electrical charge difference is preferably generated between a polymer composition comprising a polymer powder and the container layer. For this purpose, preferably the polymer powder is electrically charged positively or negatively. Furthermore, the container layer is preferably contacted with a grounded shaped body.

food

The 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. A preferred food is a fluid, so flowable. Fluids are liquids; gases; granular matter such as powder, powder and granules; and mixtures of at least two of the foregoing. In this case, solids may also be present in the liquid, for example but not necessarily forming a suspension. A preferred liquid is a beverage such as a juice, a nectar, a milk product or a soft drink. Another preferred liquid is a sauce or soup. The abovementioned liquids are preferably present above 5 ° C. in the liquid state of matter.

Water repellents

A preferred hydrophobizing agent herein includes an alkyl ketene dimer (AKD) or an alkenyl succinic anhydride (Alkenyl succinic anhydride - ASA) or both. The hydrophobizing agent preferably consists of the abovementioned compound or the abovementioned compounds.

superplasticizer

A preferred flow agent is a polyamine, preferably an aliphatic polyamine. Such is for example as Eka ATC 4150 commercially available from Eka Chemicals. The flow agent is preferably an agent which modifies flow properties of the composition. The flow agent is preferably added to the composition as an aqueous solution, more preferably as an aqueous cationic polymer solution.

First negative form

The first negative form is any suitable for the use of the invention suitable for the use of the invention into consideration. The first negative mold preferably defines a shape of the blank wall by the configuration of a surface of the first mold wall facing the first mold interior. The first mold wall is preferred for the liquid of the composition, but not permeable to the particles of the plurality of particles. For this purpose, the first mold wall can be formed as a mesh, grid, perforated or porous. Preferably, the first negative mold for demolding the container blank is made in several pieces, for example, constructed of half-shells. In method step b), the composition preferably flows into the first mold interior such that the particles of the plurality of particles deposit on a surface of the first mold wall facing the first mold interior and in step c) the liquid is at least partially removed from the first mold wall from the first mold wall Mold interior flows out. Thus, the deposited particles of the plurality of particles preferably form the blank wall. The first mold cavity is preferably connected by a first plurality of openings in the first mold wall to an environment of the first negative mold. A preferred first plurality of openings is one selected from the group consisting of a plurality of holes, a plurality of channels, and a plurality of pores, or a combination of at least two thereof. Preferably, the first mold wall is at least partially formed as a mesh, grid, perforated or porous. The apertures of the first plurality of apertures are preferably configured to be permeable to the liquid and less permeable, preferably impermeable, to the particles of the plurality of particles. Here, the openings of the first plurality of openings preferably at least predominantly have a size which is smaller than a mean diameter of the particles of the plurality of particles.

Further negative form

As a further negative form, any form suitable for the use according to the invention, in particular for hot pressing, is considered. In this case, the further negative mold preferably forms a shape of the container wall, in particular its outer shape, in particular the container layer, by virtue of the configuration of a surface of the further mold wall facing the further mold interior. The further mold wall is preferred for the liquid of the composition, but not permeable to the particles of the plurality of particles. For this purpose, the further mold wall can be formed as a mesh, grid, perforated or porous. Preferably, the further negative mold to a receiving the container blank and to a demolding of the resulting container is in several pieces, for example, constructed of half-shells formed. Furthermore, the further mold wall preferably has a further mold opening. This is preferably designed and arranged so that in the method step d) of the method 1, a pressure in the further mold interior can be increased. For this purpose, the further mold opening can be designed to introduce a gas into the further mold interior. Additionally or alternatively, the further mold opening can be arranged and designed such that in method step d) a solid body for contacting the container blank can be introduced at least partially into the further mold interior on a side facing away from the further mold wall. As stated above, the solid can be designed as a hollow body with an elastically deformable wall. The further mold cavity is preferably connected by a further plurality of openings in the further mold wall with an environment of the further negative mold. A preferred further plurality of openings is one selected from the group consisting of a plurality of holes, a plurality of channels, and a plurality of pores, or a combination of at least two thereof. Preferably, the further mold wall is at least partially formed as a mesh, grid, perforated or porous. The openings of the further plurality of openings are preferably formed so as to be permeable to the liquid and less permeable, preferably impermeable, to the particles of the plurality of particles. Here, the openings of the further plurality of openings preferably at least predominantly have a size which is smaller than a mean diameter of the particles of the plurality of particles.

Shapes of the container blank

As forms of the container blank in method step d), any measure which appears to be suitable for a person skilled in the art in order to obtain the container according to the invention from the container blank is considered. These include in particular measures for further reducing a portion of the liquid in the blank wall. The molding preferably includes a press of the blank wall or a heating of the blank wall or both, the latter preferably being a hot pressing of the blank wall. Pressing is herein to exert a force against an opposing counterforce, preferably to thereby achieve compression of the pressed material, for example the blank wall.

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%.

Average thicknesses, specific volumes and average densities of the blank wall and the container layer

To determine the average thickness, the specific volume and the average density of the blank wall and the container layer, 5 samples with dimensions of approximately 1.5 cm × 1.5 cm are taken from the blank wall or the container layer. The average thickness, the specific volume and the average density of the blank wall or the container layer are in accordance with the standard DIN EN ISO 534: 2012-02 according to the scope of application under point 1a) "Measurement of a single sheet of paper or paperboard as single sheet thickness". In this case, the apparent sheet density d _{S is} specified as average density according to item 10.3.1 of the standard. Furthermore, the apparent specific volume of the leaf is given as a specific volume according to point 10.4.1 of the standard.

In order to determine the density of a region of the blank wall or of the container layer, a sample of sufficient size is taken from identical container blanks or containers and, as described above, the density of this region is determined, averaging over the 5 container blanks or containers. By using a sufficient number of identical container blanks or containers, the densities of all regions of the blank wall or the container layer can be determined. By comparing the results for container blanks and containers available therefrom, a factor of compaction can be calculated for each range.

Length of a perimeter of a cut

Here, at first on the walls of two identical container blanks with a waterproof pen cut lines vorzunehmender identical cuts marked by the container blanks. This cut is made for one of the two blanks with a scroll saw along the mark. It is the length of the interior of the blank facing portion of the circumference of the cut edge measured. From the other blank, a container is prepared according to the method under investigation. On this container, the cut is made with the scroll saw along the marking and again the length of the interior of the container facing portion of the circumference of the cutting edge measured. By comparing the two lengths, it can be calculated how much the inward-facing portion of the perimeter of the blank has been stretched during container manufacture.

To examine the extension of individual sections of the inwardly facing portion of the perimeter of the blank for both blanks before container manufacture and before performing the cuts on the mark for the cuts each of the same section marked with the pin and the two sections each the length of the marked subsection.

The above measurements are performed on 5 identical blank pairs and the arithmetic mean of the results is formed.

Determination of the moisture content (herein also liquid content, liquid content or residual moisture) of the composition, the blank wall and the container layer

The moisture content will be according to the norm DIN EN ISO 287: 2009-09 determined by means of a heating cabinet. Here either 1000 ml of the composition are sampled, weighed and dried in the oven at 105 ° C to constant mass, or 10 blanks or 10 containers weighed and dried in the oven at a temperature of 105 ° C to constant weight and the arithmetic mean over formed the 10 blanks or containers.

Proportion of solids and solids-forming additives

To determine the proportion of solids in the container layer or on solids and solid-forming additives together in the composition is also the norm DIN EN ISO 287: 2009- 09 applied. Here, the proportion of particles is calculated according to the following equation: $$\text{weight}\text{.-\% of the particles}={\text{m}}_1/{\text{m}}_0\times 100$$

In particular, the particles of the plurality of particles belong to the solids.

Average layer thickness of a polymer layer

The layer thickness of a sample with an area of 0.5 cm ² is determined by means of a scanning electron microscope (SEM). This is done by hand cutting with a blade (Leica Microtome Blades 819 ) performed a cross section of the layer structure to be determined. The cross section is sputtered with gold (Cressington 108 car from Cressington Scientific Instruments Ltd., Watford, UK) and then in the SEM (Quanta 450 , FEI Germany GmbH, Frankfurt) under high vacuum (p <7.0 · 10 ^-5 Pa). The layer thicknesses of the individual layers are determined and read with the software "xT Microscope Control", Version 6.2.11.3381, FEI Company, Frankfurt, Germany. To determine the average thickness, three samples are taken, as described above, the layer thickness in each sample is determined and the arithmetic mean is formed.

compression strength

For this test 5 containers are measured. The test serves to determine the compression resistance along the longitudinal axis of the container and can be used to evaluate the load capacity of containers in the static case of storage and in the dynamic case of transport. The compression test is performed on the individual containers according to the DIN EN ISO 2233: 2000 and the DIN EN ISO12048 carried out. The measuring instrument used is a TIRAtest 28025 (Tira GmbH, 96528 Schalkau, Germany). The mean value of the maximum breaking load (load value) is determined. This describes the value that leads to the failure of the containers.

water vapor permeation

The water vapor permeation rate is determined according to ASTM F1249-13. The container to be examined is glued to a holder with a 2 component adhesive (5 minute epoxy, ITW Devcon, Kiel, Germany) and connected to the meter. The measuring surface of the sample corresponds to the inner surface of the sample. The measurements are taken at an ambient temperature of 23 ° C, an ambient air pressure of 100 kPa (0.986 atm) and a relative humidity of 50% on one side of the sample and 0% on the other side of the sample. The tester is a permatran - W Model3 / 33 from Mocon, Neuwied, Germany. For the measurements, samples with the ambient temperature are used. Further settings and influencing factors for the measurement - in particular the others listed under item 12 of the standard ASTM F1249-13 - are specified by the instrument used or the proper use and maintenance thereof according to the manufacturer's manual. The obtained value of the Wasserdampfpermeationsrate is converted to cm ² tank wall (inside) and year.

Water absorption of the container layer

The water absorption capacity is according to the norm DIN EN ISO 535: 2014 certainly. Here, the method according to the specifications Cobb 600 performed, the test area is 16 cm ² .

Bending radius of the container layer

The bending radius is determined by means of a radius gauge. In this case, the procedure is such that the bending radius corresponds to the value at which the good side fits 100% suitably into the bending radius of the container layer.

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.

pulp

There is a pulp with a fiber content of 0.6 wt .-%, and additives having a proportion of Eka DR25 SF share (AKD of Eka Chemicals AB, Bohus, Sweden) of 0.02 wt .-% and a proportion of EKA ATC 4160 Proportion (polyamine from Eka Chemicals AB, Bohus, Sweden) of 0.0025 wt .-% and a balance of water provided. The fibers here are wood pulp fibers with a mean fiber length of 1.5 mm.

First negative form of the container blank

Furthermore, a first negative mold of a container blank of the container to be produced is provided. The container is a bottle as in 9 is shown. The first negative mold of the container blank consists of half-shells, each having a two-part construction. Each half-shell is also made of a plastic carrier with a plurality of holes of several millimeters in diameter and a screen mold inserted therein from a metal mesh with 0.5 mm mesh size. In this case, the screen form forms a surface of the first mold wall facing the first mold interior, which surface forms a contact surface with the container blank represents. 16 shows a photograph of a half-shell of the first negative mold, wherein the screen form was removed from the plastic carrier.

Production of the container blank

The half shells of the first negative mold are assembled and a rubber hose is connected as a feed line to the first mold opening, so that pulp can be pumped through the first mold opening into the first mold interior. First, 0.45 liter of the pulp is introduced through the first mold opening into the first mold cavity. Here, the flow rate of the pulp does not exceed 200 mm / s. After the feed of this first portion of the pulp has been stopped, compressed air at 6 bar is pressed into the first mold cavity. As a result, the water of the pulp is partially forced out of the first mold interior through the first mold wall and thus partially dewaters the introduced pulp. Then another 0.45 liter of the pulp are pumped as another portion again via the rubber tube through the first mold opening in the first mold interior. Again, a maximum flow rate of 200 mm / s of the pulp is not exceeded. Once again, the feed of the pulp is stopped and pressurized air at 6 bar is pressed into the first mold interior in order to further dewater the pulp in the first mold interior. The sum of fiber content and additive content of the mass obtained in the first mold interior, which has been deposited on the first mold wall, is now 25 wt .-%. The water content is 75 wt .-%. This mass forms the blank wall of the container blank. It has an average density of 0.2 g / cm ³ . The container blank is demolded by separating the two half-shells of the first negative mold of the container blank from each other. Due to the configuration of the first mold wall of the first negative mold, the blank wall of the container blank has in a transition region between the bottom and the jacket region of the blank wall that in the 17 shown shape.

Further negative form of the container

There is provided a further negative mold of the container to be produced. The other negative form of the container consists of half shells, each consisting of a porous aluminum available as AlSi ₇ Mg from Exxentis). In the aluminum channels are introduced for the removal of water. The channels have a diameter of 0.3 mm. Furthermore, the further negative mold has a further mold opening, through which the hollow body below can be introduced into the blank interior, when the container blank is located in the further mold interior. Furthermore, the mold described below can engage the mouth region of the container blank located in the further negative mold through the further mold opening.

mold

Furthermore, a molding tool is provided, which is designed to form the mouth region of the container (see 6 to 10 ). For this purpose, the mold has an outer ring made of aluminum, which concentrically surrounds an inner ring of silicone. The blank wall of the container blank can be received in the blank opening forming the opening region of the container blank with the edge between the two circular rings and so pressed. Furthermore, the molding tool includes a hollow body arranged within the inner ring with an elastically deformable wall of rubber. The hollow body is provided with a feed, can be pressed through the compressed air with a few bar in the hollow body.

Production of the container

First, the negative mold of the container is preheated to 170 ° C by means of an electric heater. Then, the container blank prepared as described above is introduced into the further negative mold of the container and the half-shells of the mold are assembled. After closing the mold, the mold is placed on the mold as in the 4 to 8th shown. Here, the mold is pressed with a pressure of 25 N / mm ² on the container blank. As a result, the container blank is pressed along its height, thereby reducing it to 97% of the original height of the container blank. Furthermore, the density of the container blank is thereby increased by a factor of 1.3 in its mouth region. Further, the edge of the mouth portion of the blanking wall between the inner ring and the outer ring is received so that the blanking wall is enclosed with the edge of the mold. As a result, the edge is pressed and thus obtain a relatively smooth surface without protruding fibers. The in the blank interior as in the 4 to 8th shown hollow body is inflated with 3 bar of compressed air and thus pressed for 90 seconds from the inside in the radial direction against the blank wall with a pressure of 0.4 N / mm ² . The elastically deformable hollow body made of rubber also presses against the inner ring of silicone and thus forms smooth transitions of the mouth region of the blank wall. As a result, the blank wall between the inner ring and the outer ring is pressed in the radial direction. In this case, the density of the container blank is increased in its mouth region by a further factor of 2.9 and thus obtained the mouth region of the container. At the same time, the remaining blank wall is pressed by the hollow body against the other mold wall that their Density increased by a factor of 3.75 and thus the container layer is obtained. In this case, a vacuum of 0.8 bar is applied to the outside of the further mold wall of the further negative mold of the container. The sum of fiber content and additive content of the container wall forming the container wall of the container now forming is 97 wt .-% and the average density is 0.75 g / cm ³ . The water content of the container layer is 3 wt .-%. Due to the configuration of the further mold wall of the further negative mold, the container wall of the container obtained in a transition region zwichen bottom and shell region of the container layer in the 17 shown shape. In the container manufacture, no area of the blank wall was stretched more than a factor of 1.8 when forming the container layer from the blank wall. In this way it could be achieved that the container layer has a bending radius of 5 mm in the transition region on its side facing away from the container interior, without the container layer having a thin point.

coating

The coating is carried out at an ambient temperature of 23 ° C, an ambient air pressure of 100 kPa (0.986 atm) and a relative humidity of 50%, so that the moisture content of the container obtained as described above remains constant at 7% by weight. The container is transferred to an Encore HD powder coating machine from Nordson, Erkrath, Germany. This system includes a holding device with a shaped body that receives the container and holds so. The molded body is grounded and rotatably mounted about an axis. The holding device further includes a drive unit, which can rotate the molding at 1500 revolutions per minute. The shaped body is cup-shaped for receiving the container, so that the shaped body partially surrounds the container. Here, the container wall of the container received in the molded body is contacted with 70% of its surface facing away from the container interior surface with the grounded molded body. Further, the powder coating plant includes a spray lance that delivers an LDPE powder. This lance has a plurality of nozzles. The LDPE powder is electrically negatively charged by applying a voltage of 25 kV to the lance tip and atomized via the nozzles both horizontally and vertically. The lance is here introduced at 90% of the height of the container interior at a speed of 15 m / min in this. After the LDPE powder has been sprayed onto the inside of the container layer and the edge surrounding the container opening, the container is heated in an oven at 185 ° C. for 10 minutes. In this case, the powder coating forms a closed polymer inner layer, which superimposes the container layer on its inside over the entire surface, that is to say 100%, with a layer thickness of 40 μm. The container is then transferred back into the holding device and fixed instead of the cup-shaped molding on a conical mandrel. With the lance is now further LDPE powder at an electrical voltage of 25 kV from the outside to the mouth of the container, including the edge of the container opening sprayed. Then container is again heated for 10 min in the oven at 185 ° C. In the process, a closed polymer outer layer, which superimposes the mouth region of the container on the outside to 15% of the outside with a layer thickness of 40 μm, is formed from the powder coating just applied.

Filling and closing

The container produced as described above is sterilized in a filling machine of the type Ermifill 24L, Fa. Ermi, France, and filled with a yogurt. Thereafter, a pull-tab (pull tab) made of aluminum is sealed by heat sealing with the applied polymer layers as a sealant on the edge surrounding the container opening, thus sealing the container.

• 1 ein Ablaufdiagramm eines erfindungsgemäßen Verfahrens zum Herstellen eines Behälters;
• 2 ein Schema zu den Verfahrensschritten b) und c) des Verfahrens der 1;
• 3 ein Schema zu dem Verfahrensschritt d) des Verfahrens der 1;
• 4 ein weiteres Schema zu dem Verfahrensschritt d) des Verfahrens der 1;
• 5 ein weiteres Schema zu dem Verfahrensschritt d) des Verfahrens der 1;
• 6 ein weiteres Schema zu dem Verfahrensschritt d) des Verfahrens der 1;
• 7 ein weiteres Schema zu dem Verfahrensschritt d) des Verfahrens der 1;
• 8 ein weiteres Schema zu dem Verfahrensschritt d) des Verfahrens der 1;
• 9 eine schematische Darstellung eines erfindungsgemäßen Behälters;
• 10 eine schematische Darstellung eines weiteren erfindungsgemäßen Behälters;
• 11 einen schematischen Längsschnitt durch den Behälter der 10;
• 12 einen schematischen Längsschnitt durch einen weiteren erfindungsgemäßen Behälter;
• 13 einen schematischen Längsschnitt durch einen weiteren erfindungsgemäßen Behälter;
• 14 schematische Längsschnitte durch einen Behälterrohling und einen daraus erhaltenen erfindungsgemäßen Behälter;
• 15 ein Ablaufdiagramm eines erfindungsgemäßen Verfahrens zum Befüllen und Verschließen eines Behälters;
• 16 eine Fotografie einer Halbschale der ersten Negativform des Behälterrohlings in 2; und
• 17 Teile schematischer Längsschnitte durch einen Behälterrohling und einen daraus erhaltenen erfindungsgemäßen Behälter.

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

• 1 a flow diagram of a method according to the invention for producing a container;
• 2 a diagram for the method steps b) and c) of the method of 1 ;
• 3 a diagram for the method step d) of the method of 1 ;
• 4 a further scheme for the method step d) of the method of 1 ;
• 5 a further scheme for the method step d) of the method of 1 ;
• 6 a further scheme for the method step d) of the method of 1 ;
• 7 a further scheme for the method step d) of the method of 1 ;
• 8th a further scheme for the method step d) of the method of 1 ;
• 9 a schematic representation of a container according to the invention;
• 10 a schematic representation of another container according to the invention;
• 11 a schematic longitudinal section through the container of 10 ;
• 12 a schematic longitudinal section through another container according to the invention;
• 13 a schematic longitudinal section through another container according to the invention;
• 14 schematic longitudinal sections through a container blank and a container according to the invention obtained therefrom;
• 15 a flow diagram of a method according to the invention for filling and closing a container;
• 16 a photograph of a half-shell of the first negative mold of the container blank in 2 ; and
• 17 Parts of schematic longitudinal sections through a container blank and a container according to the invention obtained therefrom.

1 shows a flowchart of a method according to the invention 100 for producing a container 305 , The procedure 100 comprises a process step a) 101. In this a composition is provided consisting of water, a plurality of fibers, AKD and ASA as water repellents and Eka ATC 4150 by Eka Chemicals as a flow agent. Here, the composition includes the fibers in an amount of 0.6% by weight and the water repellents and the flow agent in proportions of together less than 0.025% by weight, each based on the weight of the composition. The remainder of the composition at 100% by weight is water. The composition is also referred to as pulp. Furthermore, in method step a) 101, a first negative mold is formed 201 provided. This is in the context of 2 described in more detail. The procedure 100 further includes a process step b) 102, in which the composition in the first negative mold 201 is introduced. This too is for 2 explained in more detail. In a method step c) 103, as in the context of 2 described in more detail below in the first negative form 201 from the composition a container blank 205 receive. In a method step d) 104 is formed by molding the container blank 205 out of this the container 305 receive. This process step 104 is related to 3 to 8th explained in more detail. In a method step e) 105, a container wall is formed 901 of the container 305 forming container layer 1101 on a container interior facing surface with a polymer inner layer 1102 coated. This coating takes place as powder coating of the container layer 1101 with a polymer powder. The polymer powder is in this case opposite the container layer 1101 electrically charged, on the container layer 1101 sprayed and then heated by blowing hot air above its melting point, leaving a closed inner polymer layer 1102 formed.

2 shows a scheme for the method steps b) 102 and c) 103 of the procedure 100 of the 1 , The first negative form 201 includes a first mold interior 202 partly surrounding first form wall 203 , This surrounds the first mold wall 203 the first mold interior 202 in part insofar as that the first negative form 201 a first mold opening 206 that includes the first mold interior 202 with an environment of the first negative form 201 combines. The first mold interior 202 has in a plane perpendicular to a height of the first mold interior 202 a maximum diameter, wherein the first mold interior 202 in the direction from the plane to the first mold opening 206 consistently has a diameter which is less than the maximum diameter of the first mold interior 202 that is, from the plane of the maximum diameter to the first mold opening 206 The first interior of the mold tapers 202 , The first form wall 203 is designed as a metal mesh and thus has a first plurality of openings 204 on. The size of the openings 204 is chosen so that the first mold wall 203 for the water of the pulp is permeable, but not for the fibers of the pulp, which have a mean fiber length of 1.5 mm. The construction of the first mold wall 203 is related to the 16 described in more detail. In process step b) 102 the pulp flows through the first mold opening 206 in the first mold interior 202 , Overlapping in time, the inflowing pulp hits the first mold wall from the inside 203 passing the water partly through the openings 204 happens and so according to the method step c) 103 again from the first mold interior 202 Will get removed. This is done by an outside of the first mold wall 203 supporting negative pressure. The arrows in the 2 show the flow of water. In process steps b) 102 and c) 103 does not have the pulp anywhere in the first mold cavity 202 a flow rate of more than 200 mm / s. While the water of the pulp partly the first mold interior 202 Once again, the fibers of the plurality of fibers of the pulp can form the first wall 203 not through the openings 204 happen. As a result, the fibers are deposited on the first mold interior 202 facing side of the first mold wall 203 from. To further drain the deposited and partially dewatered pulp, compressed air is introduced into the first mold cavity 202 initiated, so that the pressure in the first mold interior 202 increased and the fibers with the remaining water from the inside against the first mold wall 203 be pressed and thereby a further share of the water from the first mold interior 202 is pressed. Because the first negative form 201 as a negative mold of a container blank 205 is formed, this is obtained by this. The container blank 205 consists of the partially dehydrated pulp and already has the shape of a bottle. Consequently, the container blank 205 a blank wall 1405 which partially surrounds a blank interior. The blank wall 1405 has an average density of 0.2 g / cm ³ . The blank wall 1405 has a blank opening, the blank interior having a maximum diameter in a plane perpendicular to a height of the blank interior, the blank interior having a diameter in the direction from the plane to the blank opening that is less than the maximum diameter of the blank interior. The height of the blank interior is in this case a maximum extent of the blank interior in a Cartesian spatial direction and extends from the blank opening to a section of the blank wall opposite the blank opening 1405 which is a bottom of the container blank 205 is. Furthermore, the first negative mold consisting of half-shells becomes 201 opened to the preserved container blank 205 to demould.

3 shows a diagram for the method step d) 104 of the method 100 of the 1 , In this process step 104 becomes the container according to the invention 305 from the container blank already obtained as described above 205 by hot pressing in a press molding device 300 receive. For this purpose, the container blank 205 in another negative form 301 the molding device 300 brought in. This is also the other negative form 301 built from half shells. The further negative form 301 includes a another mold interior 302 partially surrounding another form wall 303 , The other form wall 303 is porous and thus has a further plurality of openings 306 on, the pores are up. The size of the pores is chosen so that the additional mold wall 303 is permeable to the water contained in the blank wall, but not to the fibers. Furthermore, the further negative form 301 as a negative mold of the container to be produced 305 educated. Furthermore, the press molding device includes 300 a first mold 307 , which is a solid 304 includes. This solid 304 is as a hollow body 304 formed with an elastically deformable wall. By molding the container blank 205 in the further mold interior 302 the further negative form 301 gets out of the container blank 205 the container 305 receive. The container 305 includes a container interior partially surrounding container wall 901 , This consists of a container layer 1101 , which from the blank wall 1405 is obtained. The container layer 1101 has an average density of 0.75 g / cm ³ . Details of the hot pressing in the press molding device 300 are in the 4 to 8th illustrated and explained. Here are the 4 to 8th to see in a chronological order.

4 shows a further scheme for method step d) 104 of the procedure 100 of the 1 , You can see a section through the Pressformeinrichtung 300 with the further negative form 301 and the first mold 307 with the hollow body 304 , In the further mold interior 302 is the container blank to be pressed 205 ,

5 shows a further scheme for method step d) 104 of the procedure 100 of the 1 , Compared to the 4 you can see that the first mold 307 with the hollow body 304 in a first direction 501 on the further negative form 301 to be moved. As a result, the hollow body 304 further introduced into the blank interior. Further, the first mold contacts 307 the container blank 205 in its mouth area.

6 shows a further scheme for method step d) 104 of the procedure 100 of the 1 , Compared to the 5 Here is the first mold 307 continue in the first direction 501 moves, leaving the first mold 307 with the further negative form 301 connected and this is closed. This movement engages the first mold 307 so at the mouth of the container blank 205 on that the blank wall 1405 between the first mold 307 and the other negative form 301 in the first direction 501 which are along a height of the container blank 205 runs, is pressed. This first pressing will increase the density of the blank wall 1405 increased in the estuarine area by a factor of 1.4. At the same time, the first mold engages 307 so at the mouth of the container blank 205 on that the blank wall 1405 in the mouth area in a further direction 601 is pressed. For this purpose, the blank wall 1405 in its mouth area between a rigid outer ring 602 made of aluminum and an elastically deformable inner ring 603 made of silicone and pressed between them. The further direction 601 is here arranged radially, that is in a plane perpendicular to the height of the container blank 205 is. By this further pressing, the density of the blank wall 1405 in the mouth area further increased by a factor of 2.68. Thus, the density of the blank wall became 1405 increased by a factor of 3.75 by the first pressing and further pressing together. Further pressing of the mouth area does not take place. Thus, the mouth area obtained is already the mouth area 903 of the container to be produced 305 ,

7 shows a further scheme for the method step d) 104 of the method 100 of the 1 , Here was opposite the 6 180 ° C hot oil in the hollow body 304 introduced so that its elastically deformable wall is deformed so far that they from the inside of the blank wall 1405 against the other form wall 303 pressed. By this pressing, the density of the blank wall 1405 (Excluding the already compressed mouth area 903 ) increased by a factor of 3.75. This will be the container wall 901 forming container layer 1101 receive.

8th shows a further scheme for the method step d) 104 of the method 100 of the 1 , Here was going out of the 7 the oil back out of the hollow body 304 sucked off and this is from the further mold interior 302 removed, leaving the container 305 from the further negative form 301 can be removed from the mold.

9 shows a schematic representation of a container according to the invention 305 as he goes through the process 100 of the 1 to 8th was obtained. The container 305 includes a container wall 901 holding a container interior 909 partially surrounds. The container wall 901 consists of a polymer inner layer 1102 from PLA and a container layer 1101 arranged as layers of a layer sequence in this order in the direction of the container interior 909 superimpose over the entire surface to the outside. Hereby the container layer became 1101 as described above in process step d) 104 of the procedure 100 over a blank wall 1405 obtained from a pulp. The container 305 is a bottle that is in a mouth area 903 a container opening 902 having. The mouth area 903 is over a bottleneck 904 with a bottle body 905 connected. Furthermore, the bottle includes a floor 906 who has a coat area 907 with the mouth area 903 connected is. In a transition area 908 between the ground 906 and the jacket area 907 has the container wall with the container layer 1101 a bending radius of 6 mm. As a result, the bottle has a particularly secure state. The container layer 1101 consists of 93 wt .-%, based on the total weight of the container layer 1101 , of solids, to which are obtained from spruce wood as groundwood fibers with a mean fiber length of 1.5 mm and as additives AKD and ASA and Eka ATC 4150 owned by Eka Chemicals. Furthermore, the container layer 1101 a moisture content of 7 wt .-%, based on the total weight of the container layer 1101 , The container layer 1301 does not contain any fold or fold. The container 305 includes the polymer inner layer 1102 in an amount of 15% by weight, based on the total weight of the container 305 , The container interior 909 has in a plane perpendicular to a height 910 of the container interior 909 a maximum diameter 911 , wherein the container interior 909 in the direction from the plane to the container opening 902 has a diameter that is less than the maximum diameter 911 of the container interior 909 , This clarify in the 9 drawn, dashed guides.

10 shows a schematic representation of another container according to the invention 305 , Also this container 305 is designed as a bottle. The bottle in turn includes a container wall 901 Partially surrounding a container interior. The container wall 901 consists of a layer sequence of the following layers which overlap one another in the direction from the container interior to the outside: a polymer inner layer 1102 EVOH, a container layer 1101 , and a polymer outer layer 1103 made of PET. The bottle points in a mouth area 903 a container opening 902 on. Furthermore, the mouth area 903 with a screw thread 1001 for screwing on a lid as a closure. The screw thread 1001 is hereby through the container layer 1101 molded and with the polymer outer layer 1103 coated. The mouth area 903 is over a bottleneck 904 with a bottle body 905 connected. The container layer 1101 consists of 92.9 wt .-%, based on the total weight of the container layer 1101 , made of spruce wood, groundwood fibers with a mean fiber length of 1.5 mm. Furthermore, the container layer 1101 a moisture content of 7 wt .-%, based on the total weight of the container layer 1101 , and contains 0.1 wt .-% additives such as AKD and ASA as a water repellent and Eka ATC 4150 from Eka Chemicals as superplasticizer. The container layer 1101 has an average thickness of 650 microns and is at no point the container wall 1101 thinner than 300 μm. Furthermore, the container layer includes 1101 no fold or fold. The polymer inner layer 1102 has a mean layer thickness of 80 μm. The polymer outer layer 1103 has a mean layer thickness of 50 μm. The container interior 909 has in a plane perpendicular to a height 910 of the container interior 909 a maximum diameter 911 , wherein the container interior 909 in the direction from the plane to the container opening 902 in the area of the bottleneck 904 and the mouth area 903 has a diameter that is less than the maximum diameter 911 of the container interior 909 ,

11 shows a schematic longitudinal section through the container 305 of the 10 , In the 11 it can be seen that the polymer outer layer 1103 over the entire surface of the container layer 1101 is coated. Here is the in the 3 upper edge 1104 the container layer 1101 around the container opening 902 revolves, with the polymer outer layer 1103 but not with the polymer inner layer 1102 coated. Because this edge 1104 is not considered for use herein as the container interior nor viewed from the latter, the polymer inner layer applies 1102 coated as a full surface.

12 shows a schematic longitudinal section through a further inventive container 305 which is the same shape as the container 305 of the 10 Has. Here is the container layer 1101 full surface with the polymer inner layer 1102 coated, wherein the polymer inner layer 1102 also on the edge 1104 is coated. The polymer outer layer 1103 is just on the edge 1104 the container layer 1101 superimposed and there on the polymer inner layer 1102 applied.

13 shows a schematic longitudinal section through another container according to the invention 305 , The container 305 of the 13 is designed like the container 305 of the 11 , Notwithstanding the container 305 of the 11 overlays the polymer outer layer 1103 here the container layer 1101 not over the entire surface, but only to about 20% of the surface of the container layer 1101 which is remote from the container interior. Here is the container layer 1101 especially in the entire mouth area 903 of the container 305 with the polymer outer layer 1103 coated.

14 shows a schematic longitudinal section through a container blank 205 and the same longitudinal section through one of the container blank 205 available containers according to the invention 305 , The blank wall 1405 of the container blank 205 has a first circumferential line in the longitudinal section 1401 , The container layer 1101 of the container 305 has in the longitudinal section another circumferential line 1402 , An entire container interior 909 facing section 1404 the further circumference 1402 here is no more than a factor of 1.5 longer than an entire section facing the blank interior 1403 the first circumference 1401 , This means that in a process in which the container 305 from the container blank 205 the section is produced 1403 is stretched by no more than a factor of 1.5. In addition, no part of the first circumference 1401 stretched by more than a factor of 1.5 in the process. By observing this factor is a bending radius of 5 mm, for example in a transition area 908 between a floor 906 of the container 305 and a jacket area 907 , achievable.

15 shows a flowchart of a method according to the invention 1500 for filling and closing a container 305 , In a process step I) 1501 becomes the container 305 of the 12 provided. The following process steps II) 1502 and III) 1503 are carried out in a filling machine. In process step II) 1502 becomes the container 305 through its container opening 902 filled with a smoothie. In process step III) 1503 becomes the filled container 305 locked. For this purpose, an aluminum foil by heat sealing with the polymer outer layer 1103 and the polymer inner layer 1102 on the edge 1104 as sealant over the container opening 902 sealed.

16 shows a photograph of a half-shell of the first negative mold 201 of the container blank 205 in 2 , The half shell consists of a plastic carrier 1601 with a variety of holes. In this plastic carrier is a screen shape 1602 used. The sieve shape 1602 forms the surface of the first mold wall 203 on which the fibers of the pulp in the manufacture of the container blank 205 deposit.

17 shows parts of schematic longitudinal sections through a blank wall 1405 a container blank 205 and through a container layer 1101 one from the container blank 205 obtained inventive container 305 , You can partly see a floor 906 of the container 305 , also partly a coat area 907 of the container 305 and a transition area 908 between the ground 906 and the jacket area 907 , In the transition area 908 has the container layer 1101 on theirs from the container interior 909 His turned away a bending radius of 5 mm. This bending radius could in the manufacture of the container 305 from the container blank 205 By adhering to the following rules can be achieved without it to the formation of thin spots in the container layer 1101 or tearing the blank wall 1405 came during the production. In the longitudinal section shown has the blank wall 1405 a first circumferential line 1401 showing the longitudinal section of the blank wall 1405 circulates. On a blank interior facing side of the blank wall 1405 has the first circumference 1401 a section 1403 in one to the container 305 analog transition region between the bottom and shell region of the blank wall 1405 , In a method according to the invention 100 for producing the container 305 from the container blank 205 becomes the blank wall 1405 in a method step d) 104 to the container layer 1101 shaped. This is from the section 1403 the first circumference 1401 a the container interior 909 facing section 1404 the further circumference 1402 receive. Here is the section 1404 by no more than a factor of 1.8 longer than the section 1403 , On a side facing away from the blank interior side has the first circumferential line 1401 a section 1701 , which in the method step d) 104 in the section 1702 the further circumference 1402 is transferred. Here is the section 1701 longer than the section 1702 , The section 1701 this can be any length longer than the section 1702 ,

LIST OF REFERENCE NUMBERS

100

Inventive method for producing a container

101

Process step a)

102

Process step b)

103

Process step c)

104

Process step d)

105

Process step e)

201

first negative form

202

first mold interior

203

first form wall

204

Opening the first plurality of openings

205

container blank

206

first mold opening

300

Press molding device

301

another negative form

302

further form interior

303

another form wall

304

Solid / hollow body

305

inventive container

306

Opening the further variety of openings

307

first mold

501

first direction

601

further direction

602

outer ring

603

inner ring

901

container

902

container opening

903

mouth area

904

bottleneck

905

bottles of body

906

ground

907

cladding region

908

Transition area

909

Container interior

910

Height of the container interior

911

maximum diameter of the container interior

1001

screw thread

1101

container layer

1102

Polymer inner layer

1103

Polymer outer layer

1104

edge

1401

first circumference

1402

further circumference

1403

the blank interior facing portion of the first circumferential line

1404

the container interior facing portion of the other circumferential line

1405

Rohlingswandung

1500

Inventive method for filling and closing a container

1501

Process step I)

1502

Process step II)

1503

Process step III)

1601

Plastic carrier

1602

screen shape

1701

from the blank interior portion facing away from the first circumferential line

1702

from the container interior facing away from the further peripheral line

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 non-patent literature

• DIN 60001-1: 2001-05 [0126]
• DIN EN ISO 6938: 2015-01 [0126]
• DIN EN ISO 534: 2012-02 [0145]
• DIN EN ISO 287: 2009-09 [0150, 0151]
• DIN EN ISO 2233: 2000 [0154]
• DIN EN ISO 12048 [0154]
• DIN EN ISO 535: 2014 [0156]

Claims (25)

A method (100) including as method steps a) Provide a. a composition comprising a liquid and a plurality of particles, and b. a first negative form (201) including A) a first mold interior (202) partially surrounding the first mold wall (203), and B) a first mold opening (206) connecting the first mold interior (202) to an environment of the first mold (201), wherein the first mold wall (203) is at least partially A. permeable to the liquid, and B. is less permeable to the particles of the plurality of particles compared to the liquid; b) introducing the composition through the first mold opening (206) into the first mold interior (202); c) at least partially removing the liquid of the composition through the first mold wall (203) from the first mold interior (202), such that the particles of the plurality of particles form the first mold wall (203) on a side of the first mold cavity (202) Superimpose mold wall (203) to obtain a container blank (205), wherein the container blank (205) includes a blank wall (1405) at least partially surrounding a blank interior; and d) forming the container blank (205) to obtain a container (305), wherein the container (305) includes a container wall (901) at least partially surrounding a container interior (909), wherein the container wall (901) includes a container layer (1101) obtained from the blank wall (1405). The method (100) according to Claim 1 wherein the blank wall (1405) has a first average density, wherein the container layer (1101) has a further average density, wherein a ratio of the further average density to the first average density is in a range of 2 to 6. The method (100) according to Claim 1 or 2 wherein forming in step d) (104) as sub-steps d1) first pressing at least a portion of the blank wall (1405) in at least a first direction (501); and d2) further pressing the at least a portion of the blank wall (1405) in at least one further direction (601) to obtain at least a portion of the container layer (1101); wherein the at least one first direction (501) is different from the at least one further direction (601); wherein the first pressing in sub-step d1) includes increasing a density of the at least a portion of the blank wall (1405) by a factor of at most 3. The method (100) of any one of the preceding claims, wherein the blank wall (1405) has a first perimeter (1401) in any section through the container blank (205), no portion of the first perimeter (1401) being more than a factor of 4 is stretched. The method (100) of any of the preceding claims, wherein the particles of the plurality of particles are fibers. The method (100) according to Claim 5 wherein the fibers include a pulp or pulp or both. The method (100) according to any one of the preceding claims, wherein the method (100) further comprises at least partially superimposing the container layer (1101) on a container interior side facing the container layer (1101) with a polymer inner layer (1102). The method (100) according to any one of the preceding claims, wherein the method (100) further comprises at least partially superimposing the container layer (1101) on a side of the container layer (1101) remote from the container interior with a polymer outer layer (1103). A container (305) obtainable by the method (100) according to any one of the preceding claims. A container (305) including a container wall (901) partially surrounding a container interior (909); the container wall (901) A. a container opening (902), and B. includes a container layer (1101); wherein the container layer (1101) a. a variety of particles, and b. no folding and no fold includes; the container interior (909) I) has a maximum diameter (911) in a plane perpendicular to a height (910) of the container interior (909), and II) in the direction from the plane to the container opening (902) at least in sections has a diameter which is less than the maximum diameter (911) of the container interior (909). The container (305) after Claim 10 wherein the container layer (1101) has an average thickness in a range of 100 to 2000 μm. The container (305) after Claim 10 or 11 wherein the container layer (1101) has an average density in a range of 0.4 to 2.0 g / cm ³ . The container (305) according to one of Claims 10 to 12 wherein the container layer (1101) has a density in a range of 0.4 to 2.0 g / cm ³ on at least 70% of a total surface of the container layer (1101) facing away from the container interior (909). The container (305) according to one of Claims 10 to 13 wherein the container layer (1101) includes a bend radius of less than 10 mm. The container (305) according to one of Claims 10 to 14 wherein the particles of the plurality of particles are fibers. The container (305) after Claim 15 wherein the fibers include a pulp or pulp or both. The container (305) according to one of Claims 10 to 16 wherein the container wall (901) additionally includes a polymer inner layer (1102), wherein the polymer inner layer (1102) at least partially overlies the container layer (1101) on a side of the container layer (1101) facing the container interior (909). The container (305) according to one of Claims 10 to 17 wherein the container wall (901) additionally includes a polymer outer layer (1103), the polymer outer layer (1103) at least partially overlying the container layer (1101) on a side of the container layer (1101) remote from the container interior (909). A method (1500), comprising as method steps, I) providing the container (305) according to one of Claims 9 to 18 ; II) filling the container (305) with a fluid; and III) closing the container (305) by connecting the container (305) to a closure. A closed container obtainable by the method (1500) Claim 19 , An apparatus including a die apparatus (300) arranged and adapted to form a container blank (205) to obtain a container (305), wherein the container blank (205) includes a blank wall (1405) at least partially surrounding a blank interior, the blank wall (1405) a. a liquid to a first liquid content, and b. a variety of particles includes, wherein the container (305) includes a container wall (901) at least partially surrounding a container interior (909), wherein the container wall (901) includes a container layer (1101), wherein the container layer (1101) A. the liquid to another liquid content, and B. the large number of particles includes, wherein the further liquid content is less than the first liquid content. A use of a filling machine for filling and closing the container (305) according to one of Claims 9 to 18 , A use of the container (305) according to one of Claims 9 to 18 , or the closed container after Claim 20 for storing a fluid. Use of a plurality of fibers in a pulp, the pulp including the plurality of fibers, and a liquid, to produce the container (305) according to any one of Claims 9 to 18 , Use of a plurality of fibers in a pulp as the composition in the process (100) of any one of Claims 1 to 8th ,

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