KR100847041B1 - Container - Google Patents

Abstract

The present invention relates to a container (1) for containing food comprising a container wall (5) having at least one paper layer (3) and an additional layer (4).

The container 1 has a container opening 7 at its upper end 6 and is closed at an end 8 opposite the container opening. At least the container wall is formed by a two-dimensional cut (9) which is joined to itself to form a continuous container wall. At least one window 10 is formed in the container wall and closed with a transparent or translucent window film 11.

The container wall is at least partially curved in the area of the window 10, and the window film is thermally adhered to the paper layer 3 to adhere the observation window 10.

Container, container wall, window, window foil, two-dimensional cut, perforated line, cut handle

Description

Container {CONTAINER}

The present invention relates to a container for holding food with a container wall comprising at least one paper layer and an additional layer. The container has a container opening at its upper end and is closed at the lower end (lower end) opposite the container opening. At least the container wall is formed with a two-dimensional cut coupled to form a continuous container wall. At least one inspection window is arranged on the container wall and closed with a transparent or translucent window film.

Such a container is known as an essentially cubic liquid container. The liquid container includes a flat sidewall in which the window extends in the longitudinal direction of the container. This window is used to observe the level of the liquid filled in the container. The paper layer of such a container consists of a relatively rigid cardboard member and an additional fluid tight film or foil made of a resin material on its inner surface. The window is mainly made only in this relatively stiff layer and the inner surface of the container is closed by a transparent or at least translucent corresponding liquid-tight foil.

Other cubic containers are known to be used to contain rice, noodles, flour, sugar, and the like. The containers include windows that are generally closed from the interior by foils that are glued in the window area to the flat side walls.

According to these known containers, the corresponding paper layers are always relatively rigid, in particular made of paperboard members. According to this paper layer, the container has a corresponding folding to form flat sidewalls arranged at relatively high rigidity in the circumferential direction at the same time as the top and bottom surfaces. The window foil covers only the corresponding window and is used only for this coupling to prevent leakage of liquid or dried food through the window.

It is an object of the present invention to improve the above-described containers, and also because very thin paper layers are used and there is no further folding or folding line of the corresponding cups for forming a three-dimensional container, Sufficient stability may appear. This object is solved by the features of claim 1.

According to the present invention, this invention is characterized in that the container wall is at least partially curved in the window region. By this curvature, increased rigidity and sufficient stability of the finished container are ensured. To further increase stability in this connection, the window foil that bonds the window is thermally bonded to the paper layer. Such thermal bonding ensures additional rigidity of the wall curvature and the container wall, and close connection between the window foil and the paper layer, and ultimately provides added stability for the container.

According to an aspect of the invention, such a window is also possible for containers with very thin walls, and the corresponding stiffness and stability of the container is sufficient to take food out of the container opening.

Further, by the thermal bonding of the window and the window foil of the curved region of the container wall, the shape stability of the container also lasts at least in this region. Without the features of the present invention, such a container would not be sufficiently stable in shape without a filler to be filled, such as a container or stockpile.

By virtue of the curvature of each container wall in the window region, stability in the longitudinal direction of the container is secured as well as sufficient stability in the circumferential direction.

According to the present invention, it is already sufficient if the window foil is thermally bonded to the paper layer at least in the edge region of the window. This thermal bonding is carried out along at least all the edges of the window to fully adhere the window. Other types of fixation are also possible between the window foil and the paper layer at a greater distance from the edge or from the edge.

Another layer is a metal layer, in particular an aluminum layer, in order to ensure a simple method of liquid tightness in the paper layer, especially on its outer surface, to the gas or liquid. These layers are simple to manufacture and fix to the paper layer. These metal layers are selectively covered on each outer surface of the paper layer. Metal layer, or alternatively, each inner surface of the paper layer may be covered with a resin layer as an additional layer. Such a resin layer is made of, for example, polyethylene or other resin such as polypropylene, polyvinyl chloride or polystyrene.

Each additional layer is used for the purpose of barrier used for each density, especially considering gas and liquid. In addition, these metal layers are particularly useful for forming edges by being curled, folded, or otherwise formed by forming open edges. The metal layer can also support tearing and unsealing of the container. The paper layer is mainly used to stabilize the container, and is mainly thicker than the additional layer.

The container opening at the top of the container is surrounded by the opening edge. According to a simple embodiment, this opening edge can be formed by the top of a two-dimensional cut. These edges become simple cut edges without any treatment, if there is no contact with the liquid in this area, or if only some contact is expected.

The opening edges or edges may be folded, dried, or molded without changing the properties of the container walls. By the treatment of such an opening edge, additional rigidity of the container in the container opening region is obtained. Also, the opening edge is briefly fixed with a lid, or is treated in such a way that the opening is covered with a foil or other covering.

The treatment of the opening edge edges can be carried out after filling of the corresponding food.

In order to connect the thick metal layer and the paper layer to one another in a simple and stable manner, an adhesive corresponding to the connection is used, particularly for the layers of the overlapping portion. By this overlapping, the manufacture of corresponding cuts of both layers and containers connected to each other is simplified.

Depending on the shape of the container and the capacity of the filled food, for example, only in a specific region of the paper layer, the metal layer, or the resin layer, and is connected to the paper layer. In order to simplify the product of cuts made of both layers, they are covered with each other, so that they generally conform to the shape, which means that they have the same volume.

In window areas it becomes more useful if an additional layer surrounds the window or covers each free edge of a layer of paper laid on the inside or outside of the paper layer of the window area.

Generally, the folding edges extending in the longitudinal direction of the container provide additional rigidity of the container. However, according to the present invention, these folding edges may not be used, and the container is essentially rotationally symmetric. This means that the intersection of the container becomes circular or elliptical. According to the invention, corresponding stiff or folded edges are no longer needed.

In order to provide a sufficient density of the window and a further stability, according to the present invention, it is sufficient when the window foil is similar in shape to window. This means that the window foil has essentially the same shape as the window but can occupy a larger volume because it is thermally bonded along the edge of the window between the window foil and the paper layer. This thermal bonding is usually done by applying heat and pressure because a deep connection between the window foil and the paper layer is obtained.

As regards the window foil, at the inner surface of the paper foil, at the inner surface of the resin layer as an additional layer, at the outer surface of the metal layer as an additional layer, which means the outer side of the container, and at the edge of the window between the paper layer and the additional layer And then thermally adhered thereto.

Only one window foil may be arranged by gluing to a plurality of windows. Each thermal bond is carried out separately for the area surrounding all windows, or for the edge of each window.

Essentially the window foil may be thermally bonded over the entire inner surface of the paper layer. This simplifies the product without the need to assign smaller portions of the window foil to individual windows of the cup. The production with essentially three layers of cuts having such metal layers, paper layers and window foils is carried out as a kind of laminate and is carried out in particular in a single process step.

For window foil, other members may be particularly transparent or at least translucent even after connection to the paper layer. Such members are also suitable for thermal bonding. Examples of such members include polyethylene, polypropylene, polyvinyl chloride, polystyrene, polyamide, PET and the like.

In particular, in order to manufacture the container wall with a single cut, the connection of the cup with itself must be carried out by means of heat and / or pressure and / or using an adhesive. The connection of the cup with itself can be implemented in other ways.

According to one embodiment, the cut is connected to itself along the side edges of the cut arranged to mate with each other.

With this arrangement, the outer surface of the container has no overlap, and the thickness of the container wall is relatively smooth along the periphery of the container wall, which is relatively smooth. A simple example of such a connection with the cut itself is when, for example, the cut connects to itself along an overlap region extending in the longitudinal direction of the container. This overlap region generally does not include window foil, but includes layers made of paper and metal, which are simply superimposed and connected to one another. The corresponding connection of the cup is effected by means of an adhesive as described above and may additionally apply heat and / or pressure.

In order to make most of these containers and especially the container walls for food transfer, the corresponding edges of the cuts can be liquid-tight. Such a liquid-tightness is generated, for example, at edges surrounding the window, edges forming the opening edge, and edges aligned inside the container. This fluid density can be obtained by covering the corresponding sealing material or by using an additional film or foil of the resin member. Such a resin foil covers the paper layer, especially outside the window foil, in particular by a liquid-tight method. The foil of the resin member may be arranged between the paper layer and the window foil. In this case, thermal bonding is carried out between the window foil and the resin layer.

To improve the visual appearance of the container, the metal layer has a print on its outer surface. Such printing may be used for indicating contents or for reasons such as an advertisement element or the like. Further, the printed matter has a three-dimensional effect, so that the visual effect can be further improved. The printed matter having such a three-dimensional effect is, for example, a hologram.

The prints can be arranged anywhere on the outer surface of the container, and can also be applied to a window or each window foil. A simple example of such a printed matter directly printed on a window is, for example, marking of the filling height in the form of a unit of capacity. There is essentially no restriction on the shape or printing color of the picture, and in particular, the metal foil has good usability for printing.

In window areas it is more useful to have the first visible print after at least partial removal of the food. For example, if the print of the window is the color of the food in the container, it will only be visible after the food is taken out. This can be used for some surprise effects or some kind of draw.

Other shapes of the container are possible. The first form is, for example, a conical shape used for waffles for containing ice cream as a food or the like. Instead of waffles, ice cream claddings made of chocolate, or other materials that are harder to eat than ice cream can be used. You will be able to fill the container or fill it with ice cream. Here, the container is used essentially only as a cover for waffle or chocolate casing.

 The shape of the other container is a so-called squeezable container, which is also conical in nature. At its lower end, such a pressurized container generally has a flag-shaped continuity formed by pressing the lower ends of the containers against each other and the container wall connecting with itself. From this flag shaped end, the contents of the container can be taken out through the upper container opening by this manual compression of the container wall.

In addition, the container may be essentially cup-shaped and may be used for cold beverages. In such a cup-shaped container, the closed lower end is made of a bottom insert, and the container opening in which the lid can be closed is particularly formed at least partially of a transparent member. The use of such floor inserts and their connection with the bottom wall is generally known.

If the bottom insert and / or the lid are also made of a transparent material, they can be used in addition to the window for viewing the inside of the container.

The unique container shape is believed to be advantageous when such containers are capable of being loaded and unloaded.

The corresponding window is used essentially for inspection of the container along the total height of the container, and the corresponding window essentially extends in the longitudinal direction of the container. Therefore, it is possible to see a decrease in the filling height, especially when the food in the container is taken out. It is also possible to see whether the container is actually filled with the indicated food.

The windows or windows have different shapes and can be arranged in different ways. Examples of such window shapes are angular shapes, in particular square, oval, circular, essentially rhombic or other shapes. Each of these windows is arranged side by side and / or above each other in the circumferential and / or longitudinal direction of the container. Windows of different shapes may be combined in one container. Another arrangement of windows may be a circular window with a reduced diameter, in particular a shape pattern, for example, a length of the container toward the upper or lower end, and the window arrangement may be a face or the like, .

The other window shape extends in an essentially helical shape along the longitudinal axis of the container. Also here, a plurality of windows can be arranged in the container.

According to one embodiment of the invention, food can be removed from the container through the container opening. It is necessary to remove the lid arranged in this area first.

The lid can be removed by means of a corresponding lid handle without damaging the container wall. The upper region of the container wall may be removed with the lid in the perforated area of the container wall. These perforations are formed in various ways. For example, there is a thinning of members.

In order to simplify the cutting of the perforated line region, a handle may be assigned to the perforated line. The perforations may extend essentially along the upper and / or lower lid of the container. This allows the perforations to be formed by the edges of the window foil. This is also valid if multiple windows overlap each other in a spiral or other manner.

This arrangement of the perforations in the window region is even more beneficial when the perforated handle is arranged in the window foil or eventually formed by the window foil. As a result, each region of the container wall along the perforated line or perforations, the interior of the container is removed by the cut handle and window foil connected thereto, and is easily accessible enough to remove the food.

The present invention also includes a two-dimensional cut corresponding to the manufacture of a container as described above.

With respect to this cut, the window is produced in essentially two different ways and can be closed fluidly by the window foil.

According to the first embodiment, the cut is formed only of paper and a metal layer. In the cut before application to the window foil, the window or windows are arranged by cutting or stamping. The corresponding cut need not be a single cut, but it may have a cut web arranged in series so that a plurality of cuts correspond to one another. Only after manufacturing the corresponding window, the window foil is thermally bonded to the inside of the paper layer by heat and / or pressure.

According to another embodiment, the window can be made only after feeding the emblem by cutting or crushing only the paper and metal layer. In this case, cutting or crimping is carried out from the cut side to be the outer surface of the container. The corresponding cut is formed only in the container wall or cut of each of the metal and paper layers, but not in the window foil thermally bonded to the paper layer.

In the following, useful embodiments of the invention are shown in connection with the drawings.

1 is a perspective side view of a first embodiment of a container according to the present invention;

Figure 2 is a perspective side view in accordance with Figure 1 of another embodiment of a container according to the present invention;

3 is a side view of another container according to the present invention having a special window shape;

Figures 4-8 are views of another embodiment having different windows.

9 is a sectional view taken along line IX-IX of Fig. 1; Fig.

Fig. 10 is a sectional view taken along the line X-X in Fig. 1; Fig.

11 is a perspective side view of another embodiment of a cut-shape container according to the present invention.

12 is a plan view of a two-dimensional cut for a container according to the present invention shown in Figs. 2 to 8. Fig.

1 is a perspective side view of a first embodiment of a container 1 according to the present invention. Which is essentially conical and comprises a squeezed flag 33 formed at its lower end 8 by compressing the container wall 5 in this region. The flag 33 is used as the handle of the container 1. The corresponding food stuffed inside the container 1 can be pushed out by pressing the container 1 from the flap 33 in the direction of the container opening 7 of the upper end 6 of the container 1.

Similar to a belt, the container 1 consists of a window 10 at least partly extending in the circumferential direction of the container 1 at the container wall 5.

The container opening 7 is surrounded by an opening edge 13 which is radially curved outwardly in the depicted example.

2, a second embodiment of a container 1 according to the present invention is shown in perspective side view. This container is essentially different from the container according to figure 1 in the absence of the flag 33 of the lower end 8. In the container 1, the food 2 similar to that of Fig. 1 reaches the filling height 28. Fig. Five windows (10) are arranged in the area of the food (2). They are circular and are formed in the longitudinal direction 23 of the vessel so that the radius decreases in the direction toward the lower end 8. The corresponding windows 10 are arranged so as to vertically overlap each other in the container wall 5. [

As another embodiment, the additional window 10 is displaced in the circumferential direction 24 of the container wall 5 in terms of a visible window and arranged in the container 1 according to Fig. An example of such an arrangement is displaced by 90 or 180 degrees.

3 to 8, different embodiments of the container 1 according to the invention are different from the container 1 according to Fig. 1 in shape, arrangement and number of windows 10. Fig. The same reference numerals are used for the same portions, and a part thereof is referred to in connection with one drawing.

In this embodiment according to Fig. 3, the two essentially rectangular windows 10 are tilted and displaced parallel to each other in the vertical direction with respect to the longitudinal direction 23 of the vessel, as shown in Fig. The window arranged close to the lower end 8 has a smaller length in the circumferential direction 24.

In Fig. 4, an essentially trapezoidal shaped window 10 is arranged in the vessel wall 5. 2, the non-parallel sides thereof extend parallel to the conical shape of the container, and the parallel sides of the trapezoid extend in the circumferential direction 24 as shown in Fig.

In this embodiment according to Fig. 4, the lid 22 is inserted into the container opening 7. The lid includes an edge rim extending upward along the edge and is bonded to the inner surface of the container wall 5.

In Fig. 5, the window 10 has an oval shape extending in the longitudinal direction of the container. A scale 34 is printed on the outer surface 20 of the outer layer 4, as shown in Fig. 9 of the container 1, adjacent to the side of the window 10. Fig. Corresponding printing may also be applied directly to the window 10.

According to the embodiment of Figure 5, a lid 22 similar to Figure 4 is provided. This is different from the lid described above in that the edge rim is arranged and held between the inner folded openings edge 13 and the inner surface 14, as shown in Fig.

In Fig. 6, the window has a spiral shape extending along the longitudinal direction 23 of the container.

7, the window extends essentially in the circumferential direction 24 and extends from the upper and lower ends 6 and 8, as shown in Figures 1 and 2 of the container 1, And is displaced from the region 17. The overlap region 17 is formed in part by the overlapping side edges of the two-dimensional cut for this container 1 as shown in Fig. In this overlapping region 17, the cut is connected to itself. For this connection, additional adhesives may be applied. The connection can be implemented by applying heat and / or pressure to the overlap region.

To replace this connection by overlapping, it is possible to connect the contact edges of these side edges and the corresponding side edges 15 and 16 of the two-dimensional cut 9, as shown in Fig.

According to the embodiment of Figure 7, the container wall 5 includes a cut handle 27 that touches the outer surface. Between this and the visible edges 15 of the two-dimensional cut of the outer surface of the container notch 35 is provided to maintain the cut of the container wall for opening the container 1. This cut is supported by the perforations 25, 26, and the cut is essentially performed along the perforations 25, 26.

7, the upper perforation line 26 extends parallel to the opening edge 13 between the opening edge 13 and the upper edge of the window 10. The second perforations 25 are formed in such a manner that the bottom edge of the window foil 11 is sealed in this area from the corresponding notch 35 which is tilted toward the bottom, Extends to the lower edge of the window 10 being used.

The other perforations 25, 26 may be formed by partial cutting of the corresponding layer of the container wall or the thinned member in the container wall 5.

In Fig. 8, the container 1 has a flat lid 22 with a lid handle 29 that extends up and down. The lid 22 is fed to the free edge of the opening edge 13 and is fixed there.

The window 10 depicted in FIG. 8 has a different shape. The arrangement of these windows is plane.

In Fig. 9, a view cut along the line IX-IX of Fig. 1 is shown.

The cut has passed through the window 10 in particular. The container wall 5 is particularly formed of two layers. The inner layer 3 is a paper layer and the outer layer 4 is a metal layer, for example an aluminum layer. The layers 3 and 4 are generally in conformity with each other because they cover each other in the cut 9 according to Fig. The layers are connected to each other by adhesive, and by application of heat and / or pressure, especially superimposed.

The metal layer 4 may have prints on its outer surface 20. This printed matter can be used for the design of the contents of the advertisement or container 1. Further, the printed matter may have a three-dimensional effect such as a hologram, a single color, or a multicolor.

Corresponding printing may also be applied to the window 10 such that such prints appear to have to be pulled out, for example, to the extent that the corresponding food is arranged below the window 10 from the container 1. For example, this can be realized in such a way that the color of the printed matter 10 is the same as the color of the filled food.

A transparent or semitransparent window foil 11 is arranged in the paper layer 3 along the inner surface 14 of the container 1 or the edge region of the window 10. Along the corresponding edges, this foil is sealed to the inner surface of the paper layer 3 in the thermal bonding area 32. [ The corresponding window 10 is surrounded by the cutting edges 30, 31 of the metal layer 4 and the paper layer 3.

The metal layer 4 may extend around the corresponding cutting edge of the paper layer 3, essentially on the inner surface 14.

In Fig. 10, a view cut along the line X-X in Fig. 1 of Fig. 1 is shown. In the region of the container opening 7, the opening edge 30 is radially outwardly curled, the corresponding container wall 5 in this region being made of a paper layer 3 and a metal layer 4. By removing the opening edge 30, the corresponding feature of the container wall 5, such as the liquid mil, does not change.

In Fig. 11, an essentially cup-shaped container 1 is shown in another embodiment. This essentially extends over the total height of the container 1 and has a tilted window.

The container 1 is closed at its lower end 8 by a bottom insert 21 at a position opposite the container opening 7. This bottom insert generally includes a corner rim 37 extending vertically upward from the bottom surface 36. This edge rim 37 is sandwiched between the wall edge of the upwardly folded container wall 5 and the inner surface 14 of the container wall 5 and is held therebetween sealingly.

In Fig. 12, a top view of an embodiment of a two-dimensional cut 9 for a container in the form of the embodiment of Figs. 2-8 is shown. The two-dimensional cut corresponding to the embodiment according to Fig. 1 or Fig. 11 is obvious.

The two-dimensional cut according to Fig. 9 consists of the upper and lower edges 19 and 18, as well as the left and right edges 15 and 16. With respect to the left and right edges 15 and 16, it is used for the joining or overlapping region 17, as shown in Fig.

The upper edge 18 of the cut 9 forms a corresponding opening edge 13, as shown in the preceding figures. This opening edge may be curled, folded, or otherwise shaped as shown in Fig.

According to cut (9), the three windows (10) are arranged essentially parallel to each other. These windows are sealed by a corresponding window foil 11 which is thermally bonded to the inner surface 14 of the paper layer 3 along the edge 12 of the window.

According to the depicted embodiments, a window foil 11 for the window 10 and an additional window foil 11 for the second window 10 are used. The corresponding window foil 11 can be used individually in each window 10 or only one window foil 11 can be used in all windows 10 as shown in the other embodiments. Thermal bonding is carried out in the region of the corresponding window 10 and at least in the corresponding thermal bonding region along the window edge 12. [

The window foil 11 may extend along the entire inner surface 14 of the paper layer 3 and may be thermally bonded to the paper layer 3 outside the window 10.

By the arrangement of the window foil for one window according to Fig. 12, the window foil 11 and the window 10 become similar in shape. This means that the shape of the window foil and window is the same, but extends over the window 10 and is thermally adhered along the window edge 12, so that the area of the window foil 11 is large.

In Fig. 12, as shown in Fig. 7, the cutaway handle 27 is shown additionally with the corresponding notch 35. Fig.

1 to 8, 11 and 12, for all the embodiments according to the invention, the window 10 is arranged in the area where the container walls 5 of the container 1 are curved. The stability and stiffness of the container 1 depend on this curvature of the container wall which is sufficiently high and the same also in the case of a thin layer, in particular a thin paper layer 3 and a thin metal layer 4. Such containers are used, for example, in containers for filling, transporting and storing food. Stability and rigidity are improved by thermal bonding of the window foil 11. They also extend similarly to the corresponding window 10 in the curved region of the container wall 5. Further, the corresponding edges of the window foil 11 are used as the tear lines 25 and 26, as shown in Fig. Therefore, the perforated lines 25, 26 individually arranged in the container wall 5 are not required.

The depicted embodiments of container 1 are all essentially rotationally symmetric. However, as shown in the container 1 according to FIG. 1 in particular, this can easily have an elliptical intersection which can be easily compressed.

With respect to cuts 9 according to Fig. 12 and similar cuts for another embodiment in the form of a container, essentially two manufacturing methods are further mentioned.

According to the first production example, the container wall 5 composed of the paper layer 3 and the metal layer 3 is a laminate. In this laminate, the corresponding window 10 or a plurality of windows are formed by cutting or pressing. Thereafter, the window or the plurality of windows is densely closed along the edge thereof with the window foil 11 arranged by thermal bonding.

According to the second production example, each cut 9 is used in forming the paper layer 3, the metal layer 4, and the container wall of the window foil 11. The corresponding window 10 is then formed by cutting or crimping using a Kiss-cut method, according to which the window is only made of a paper layer and a metal layer, and the window foil is not touched.

The window foil may in particular be a different transparent or semitransparent thermoplastic resin. One example is polyethylene.

The bottom insert 21 or the lid 22 according to another embodiment may be formed at least partially as a transparent or translucent member. As such, the contents of the container 1 can be observed through the bottom of the container opening 7 or the bottom of the container.

According to another embodiment of the present invention, for example, as shown in Fig. 12, the cut handle 27 is not formed of the paper layer 3 and the metal layer 4 but is formed as an extension of the window foil 11 . In this method, cutting of the container wall along the perforated lines 25, 26 determined by the edges of the window foil 11 is simplified.

These cutout handles 27 are guided through the side edges 15 and 16 of the cut 9, which are connected to one another, for example, on the outer surface of the container 1.

Claims (37)

A container (1) for containing food into a container wall (5) consisting of a paper layer (3) and an additional layer (4), having a container opening (7) at its upper end (6) And the container wall 5 is formed by a two-dimensional cut 9, and the cut is made to form a continuous container wall Wherein the side edges of the cut are connected to one another and the container wall (5) has one or more windows (10) closed by a transparent or translucent window foil (11) Characterized in that the container wall (5) is partly curved in the region of the window (10) and the window foil is thermally bonded to the paper layer (3) to seal the window (10). The method according to claim 1, Wherein the window foil (11) and the paper layer (3) are thermally bonded to each other in the region of the window edge (12). 3. The method according to claim 1 or 2, Characterized in that the additional layer (4) is a metal layer. 3. The method according to claim 1 or 2, Characterized in that the container opening (7) consists of an opening edge (13) formed by the upper edge (18) of the cut (9). 5. The method of claim 4, Characterized in that the opening edge (13) is formed by curling or folding without changing the characteristics of the container wall (5). 3. The method according to claim 1 or 2, Characterized in that the additional layer (4) and the paper layer (3) are connected to each other by an adhesive and are laminated. 3. The method according to claim 1 or 2, Characterized in that the additional layer (4) and the paper layer (3) are in conformity with one another. 3. The method according to claim 1 or 2, The container (1) is rotationally symmetrical. 3. The method according to claim 1 or 2, Wherein the window foil (11) has the same shape as the window (10) and is formed larger than the area of the window (10). 3. The method according to claim 1 or 2, Characterized in that the window foil (11) is adhesively disposed on the plurality of windows (10). 3. The method according to claim 1 or 2, Wherein the window foil (11) is thermally bonded to the entire inner surface (14) of the paper layer (3). 3. The method according to claim 1 or 2, Characterized in that the window foil 11 is made of polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), polystyrene (PS), polyamide (PA), PET or other thermoplastic resin . 3. The method according to claim 1 or 2, The connection of the side edges of the cut (9) is done by heat or pressure, or by the use of an adhesive. 3. The method according to claim 1 or 2, , Said cut (9) being connected to itself along the seams of the side edges (15, 16). 3. The method according to claim 1 or 2, Characterized in that the cut (9) is connected to itself along an overlap portion (17) extending in the longitudinal direction of the container. 3. The method according to claim 1 or 2, Wherein the edges (15, 16, 18, 19) of the cut (9) are fluid tight. 3. The method according to claim 1 or 2, Characterized in that the metal layer (4) comprises a print on its outer surface (20). 18. The method of claim 17, Wherein the printed matter has a three-dimensional effect. 18. The method of claim 17, Wherein the printed matter is a hologram. 18. The method of claim 17, Characterized in that the print is applied to the window (10). 18. The method of claim 17, Wherein the printed matter of the window is only visible after partially removing the food. 3. The method according to claim 1 or 2, The closed end (8) of the container (1) comprises a bottom insert (21) Characterized in that the insert and the lid (22) for sealing the container opening (7) can be formed of a partially transparent member. 3. The method according to claim 1 or 2, The container (1) is loadable and dropable. 3. The method according to claim 1 or 2, Characterized in that the window (10) extends in the longitudinal direction (23) of the container. 3. The method according to claim 1 or 2, Characterized in that the window (10) is formed in the shape of any one of a square, ellipse, circle, rhombus or trapezoid. 3. The method according to claim 1 or 2, Characterized in that the two or more windows (10) are arranged side by side in the circumferential direction (24) of the container or are arranged in line with one another in the longitudinal direction (23) of the container. 3. The method according to claim 1 or 2, Characterized in that the window (10) is spirally formed in the longitudinal direction (23) of the container. 3. The method according to claim 1 or 2, The container (1) comprises at least one tearing line (25, 26). 29. The method of claim 28, Characterized in that the perforations (25, 26) start as a tearing handle (27). 29. The method of claim 28, Wherein the perforations (25, 26) extend along the upper or lower edge of the window (10). 30. The method of claim 29, Characterized in that the cut handle (27) can be formed by extending the window foil (11). 29. The method of claim 28, Characterized in that said perforations extend along at least one corner of said window foil (11). 3. The method according to claim 1 or 2, Wherein said additional layer (4) is a liquid tight resin layer. delete The method according to claim 1, Characterized in that the window (10) is cut or stamped prior to applying the window foil (11). The method according to claim 1, Characterized in that the window (10) is manufactured by cutting or pressing only the paper and metal layers (3,4) after application of the window foil (11). The method of claim 3, Wherein the metal layer is an aluminum layer.

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