Moisture resistant packaging

Abstract

The invention relates to a package (1) comprising a first body forming a container (2) and a second body forming a lid (3), said container (2) and said lid (3) having a moisture barrier property at their respective walls (6, 8). The lid (3) has an inner dimension greater than the outer dimension of the container (2) and slides over at least a portion of the outer surface of the container during the process of defining a sliding length (5) when the package is opened or closed. The gap resulting from the difference in said diameters enables opening and closing without adversely affecting the moisture barrier property of the package (1).

Description

[0001] corresponding application This application claims priority to earlier European application number EP22172784-5, filed on May 11, 2022, in the name of AISAPACK HOLDING SA, the contents of which are incorporated herein by reference in their entirety. Technical Field

[0002] This invention relates to packaging based on bio-derived and / or biodegradable and / or recyclable materials. More particularly, this invention relates to packaging with low environmental impact. This invention is applicable to cylindrical packaging requiring good moisture protection. This invention is particularly applicable to cellulose-based packaging. This invention particularly belongs to the field of packaging for dried products. Background Technology

[0003] US 2013 / 153586 discloses a package for ice cream, comprising: a) a container component made of polystyrene, including a base and sidewalls extending from the periphery of the base to form a cavity of the container component; and b) a closure device that is manually removable and includes a top side and sidewalls, the top side being adapted to seal the cavity of the container component, the sidewalls extending from the periphery of the top side and adapted to surround the sidewalls of the container component.

[0004] US Publication 5,348,180 discloses a container with a tamper-evident seal. Suitable for containing and transporting various products, the container includes a hollow body member and a removable lid positioned above an opening in the body member, and has a tamper-evident seal connecting the body member and the lid to certify any premature removal of the lid. The seal includes two sets of overlapping perforations extending through the body member and the lid, a closed sealing line or member extending through the perforation sets and surrounding the respective interior and exterior of the body member and the lid between the perforation sets, and being sealed to form a closed loop. A patch member is attached to the inner surface of the body member and covers the perforations to prevent contaminants from entering the container through the perforations and to reinforce the perforated areas of the body member. The patch member preferably defines a guide channel between the perforations, allowing the sealing line to be inserted through one set of perforations, guided through the channel, and exiting through the other set of perforations.

[0005] JP 2021 137982 discloses double-sided laminated paper and paper cups. Summary of the Invention

[0006] This invention belongs to the field of packaging, specifically to the field of tubular packaging based on bio-based, biodegradable, or recyclable materials for preserving dried products. According to a preferred embodiment, the packaging is cellulose-based and can be recycled in the paper industry. The packaging includes at least one container and a sliding lid over said container, and the packaging maintains good moisture-proof properties throughout its entire service life.

[0007] More specifically, this invention relates to a tubular package comprising a container and a tightly fitting lid that slides above the outer surface of the container at a height referred to as a "sealing height." More specifically, and in some embodiments, the invention relates to a package formed of two tubular bodies of slightly different diameters, one of which forms the container, and the other forming the lid. According to the invention, the diameter of the lid is slightly larger than the diameter of the container, and the lid is pushed into and slides above the outer surface of the container with a clearance necessary for opening and closing operations. In the closed position of the package, the walls of the lid overlap the walls of the container at the sealing height, which ensures moisture protection of the package, even after the package has been opened for the first time or subsequently.

[0008] According to the present invention, the container and lid are based on bio-based, biodegradable, or recyclable materials and include at least one layer that provides moisture-proof properties.

[0009] According to a preferred embodiment of the invention, the container and lid are based on cellulose and include at least one cellulose-based structural layer and a functional layer that provides moisture-proof properties.

[0010] Surprisingly, it has been shown that, under certain conditions described in the remainder of this specification, the cellulose-based tubular package formed by the container and the lid, which is pushed into and fits onto the outer wall of the container and slides above the outer wall of the container, according to the principles of the invention, has the same or even improved barrier properties as the same container to be closed by a sealing lid.

[0011] More specifically, it has been shown that, in order to provide the improved barrier properties described above, the radial clearance between the outer diameter of the container and the inner diameter of the lid must be between 0.05 mm and 0.25 mm, preferably between 0.1 mm and 0.2 mm.

[0012] Similarly, it has been shown that the sealing length (i.e., the length of the push-in fit between the container and the lid) must be greater than 50 mm, preferably greater than 100 mm.

[0013] According to the invention, the packaging is based on materials that are recyclable or biodegradable and / or derived from renewable resources. In a preferred embodiment of the invention, the packaging is based on cellulose and can be recycled in the paper industry at the end of its life. Preferably, the cellulose content of the packaging is greater than 85%, advantageously greater than 90%. Preferably, the cellulose content of the packaging and the cellulose content of the lid are the same or similar. In another embodiment, these contents may differ.

[0014] According to the invention, the packaging may also have air inlet and outlet devices, which make it easier to open and close the packaging. The air inlet and outlet devices are advantageously, but not exclusively, connected to the lid.

[0015] According to the present invention, the packaging may also have a tamper-evident device that detects the first opening of the front packaging.

[0016] In one embodiment, the present invention relates to a package comprising at least one first body forming a container and a second body forming a lid, the container and the lid having moisture-proof properties at their respective walls, the lid having an internal dimension larger than the external dimension of the container and sliding over at least a portion of the outer surface of the container, wherein the opening and closing are achieved by a gap created by the difference in dimensions during the process of defining a sliding length when the package is opened or closed without adversely affecting the moisture-proof properties of the package.

[0017] In this embodiment, the gap is preferably between 0.02 mm and 0.5 mm.

[0018] In the implementation, the ratio H / D is greater than 1, preferably greater than 2, where H is the sliding length and D is the external dimension of the container.

[0019] In this implementation, the container and the lid each include an end wall or a bottom.

[0020] In an embodiment, the container and / or lid and / or bottom include structural and functional layers that provide water vapor barrier properties.

[0021] In this embodiment, the structural layer is based on cellulose, and the cellulose content is preferably greater than 70%.

[0022] In this embodiment, the functional layer is made of high-density polyethylene (HDPE) or polypropylene (PP). Other equivalent materials or mixtures of materials are also possible.

[0023] In one embodiment, the functional layer forming the inner surface of the lid slides over the structural layer forming the outer surface of the container.

[0024] In one embodiment, the functional layer forming the inner surface of the lid slides over the functional layer forming the outer surface of the container.

[0025] In one embodiment, the structural layer of the container is trapped between a first functional layer forming the outer surface of the container and a second functional layer forming the inner surface of the container.

[0026] In some embodiments, the lid includes a flared end for easier insertion into the container. In others, the end of the lid that is pushed into the mating container includes a narrowed portion. Both the flared and narrowed portions can also be used on the same package.

[0027] In one implementation, the packaging includes a tamper detection system that proves the packaging has been opened (e.g., the packaging has been opened for the first time).

[0028] In one embodiment, the packaging includes a membrane seal fixed to the end of the container. The membrane seal may form part of or be an integral part of a tamper-evident system.

[0029] In one embodiment, the packaging includes an air outlet or air inlet device, which makes it easier to open and close the packaging.

[0030] In this embodiment, the packaging has a circular, elliptical, rectangular, or rectangular cross-section. Of course, other shapes are also possible.

[0031] In one embodiment, the container and / or lid are formed from a tubular body (or another shaped body) made of sheet material, the ends / edges of which are welded or adhesively bonded to form a connecting area.

[0032] In this embodiment, the ends / edges of the sheet are butt-welded via reinforcing strips, or by overlapping end / edge welding or adhesive bonding. Attached Figure Description

[0033] Figures 1 to 12 The present invention relates to a moisture-proof packaging having a sliding lid.

[0034] Figure 1 The concept of the present invention is illustrated;

[0035] Figures 3 to 5 This illustrates the sliding area between the container and the lid;

[0036] Figure 3 A first example of a sliding area is illustrated, wherein the functional layer of the lid slides over the structural layer of the container;

[0037] Figure 4 A second example of a sliding region is shown;

[0038] Figure 5 The third example of a sliding region is shown;

[0039] Figure 6 Examples of the manufacture of tubular bodies for containers or end walls are shown;

[0040] Figures 7 to 9 Examples of connections between the end wall and the tubular body of the container or lid are shown;

[0041] Figure 7 This illustrates the connection between the inner layer of the tubular body and the outer surface of the lid;

[0042] Figure 8 This illustrates the connection between the outer layer of the tubular body and the inner layer of the end wall;

[0043] Figure 9 This illustrates the connection between the inner layer of the tubular body and the inner layer of the end wall;

[0044] Figure 10 The flared end of the lid is shown as an example, which makes it easier to insert the lid into the container;

[0045] Figure 11 An example of a package according to the invention is shown, which has an air vent in the lid for easier opening and closing of the package;

[0046] Figure 12 A comparison of the water vapor barrier properties of the packaging produced according to the present invention with those of a packaging having a sealed lid is illustrated. Detailed Implementation

[0047] 1: Packaging 2: The tubular main body that forms the container 3: The tubular main body forming the sliding cover 4: Displaying the system that steals boots 5: Sliding length 6: The tubular wall of the container 6a: Structural layer 6b: Functional Layer 6c: Functional layer 7: End walls / bottom of the container 7a: Structural layer 7b: Functional Layer 8: The tubular wall of the lid 8a: Structural layer 8b: Functional Layer 9: End wall / bottom of the lid 9a: Structural layer 9b: Functional Layer 10: Sliding area 11: Membrane seal 12: Sheet Connecting Area 13: Vent device 14: Flared end Figure 1An exemplary embodiment of a package with water vapor barrier properties according to the present invention is illustrated. Package 1 includes a tubular body 2 forming a container and is closed by a lid 3 that slides above the outer surface of the container 2. The container 2 and lid 3 have moisture-proof properties at their respective walls. The lid 3 is stacked on the container 2 at a partial height above the tubular body 2 to achieve the water vapor barrier properties of package 1. The internal dimensions of the lid 3 (such as its diameter) are larger than the external dimensions of the container 2 (e.g., its diameter), such that the gap created by the difference in size (e.g., diameter) allows the lid to be opened and closed without adversely affecting the moisture-proof properties of the package. Package 1 may include a tamper-evident indicator 4 indicating that package 1 has been opened for the first time. An example of the tamper-evident indicator 4 is a label that is adhesively bonded or welded between portions of package 1 and is torn or ripped off when package 1 is opened.

[0048] Figure 2 A cross-sectional view illustrating an embodiment of packaging 1 according to the invention is shown. Container 2 comprises a tubular wall 6 and an end wall or bottom 7. The tubular wall 6 preferably has a cylindrical geometry, but many other geometries are conceivable within the scope of the invention, such as a tubular body having an elliptical or rectangular cross-section or other cross-sections (such as rectangles). As will be explained in the remainder of the invention, the end wall 7 is preferably fixed to the tubular wall 6 by welding or adhesive bonding. The lid 3 is similar to a container consisting of a tubular wall 8 and an end wall or bottom 9 fixed to the tubular wall 8 by welding or adhesive bonding. Figure 2 The cross-sectional view of package 1 shown in the illustration shows the sliding length 5 of the tubular wall 8 of the lid and the tubular wall 6 of the container. Figure 2 The functional clearance between the inner side of the wall 8 of the lid 3 and the outer side of the wall 6 of the container 2, which is necessary for the lid's push-in engagement and sliding, is not shown when the packaging is opened or closed. Figures 3 to 5 The image shows a detailed view of the sliding area 10 between the lid 3 and the container 2. Figure 2 An embodiment with a membrane seal 11 (which is optional) is illustrated, which is welded to the end of the wall 6 of the container 2 and can be used as a tamper indicator (instead of) Figure 1 (as illustrated in label 4 or other labels besides 4), and can also improve the impermeability of the package 1 to water vapor before it is first opened.

[0049] According to a preferred embodiment of the present invention, Figure 1 and Figure 2 The example of package 1 shown is based on cellulose with a cellulose content of more than 70%, preferably more than 85%, advantageously more than 90%, and therefore can be recycled in the paper industry.

[0050] A comparison was made between the cellulose-based package 1, formed by the container 2 and the sliding lid 3 according to the invention, and the package formed by the container 2, the ends of which are sealed by welding to a moisture-proof film seal. Surprisingly, it was determined that despite the gap between the lid and the container, which makes the package not airtight, this package according to the invention has equivalent or even improved water vapor barrier properties compared to a completely sealed package under certain conditions.

[0051] In particular, and in order to achieve this improvement, the radial gap between the outer wall of the container 2 and the inner wall of the lid 3 must be between 0.02 mm and 0.5 mm, and preferably between 0.05 mm and 0.25 mm.

[0052] Similarly, the ratio H / D is greater than 1, preferably greater than 2, where H is the sliding length and D is the external dimension (e.g., its outer diameter) of container 2. If container 2 and lid 3 have cylindrical cross-sections, the external dimension of container 2 and the internal dimension of lid 3 correspond to the respective diameters of the container and lid. If container 2 and lid 3 have non-cylindrical cross-sections (such as elliptical, rectangular, square, or other shapes), then "equivalent cylinders" are defined for container 2 and lid 3, whose circumference is equal to the circumference of the cross-sections of said container 2 and said lid 3 (regardless of their shape), and the dimensions used are the (outer / inner) diameters of the respective "equivalent cylinders" determined in this way.

[0053] For example, for a container with an outer diameter of 50 mm, the sliding length 5 is greater than 50 mm (ratio H / D=1), preferably greater than 100 mm (ratio H / D=2).

[0054] Figure 3 An example of packaging 1 in sliding zone 10 is illustrated. Container 2 includes a wall 6 formed of at least one cellulose-based structural layer 6a and a thin functional layer 6b providing water vapor barrier properties. Similarly, lid 3 includes a wall 8 formed of at least one cellulose-based structural layer 8a and a thin functional layer 8b providing moisture-proof properties. Functional layers 6b and 8b are made, for example, of high-density polyethylene (HDPE) or polypropylene (PP) or other equivalent materials. The thickness of functional layers 6b and 8b is sufficiently small to ensure that the mass fraction of cellulose in the portion under discussion (container 2 or lid 3) is greater than 70%.

[0055] exist Figure 3In this embodiment, the functional layer 8b of the inner surface of the tubular body forming the lid 3 slides over the cellulose-based structural layer 6a of the outer surface of the tubular body forming the container 2. A gap between the lid layer 8b and the container layer 6a is necessary for easy opening and closing of the container. The size of this gap, as well as the size of the sliding length 5 formed by the stacking of the lid and container, affects the sealing of the packaging relative to water vapor. These sizes are, for example, those specifically mentioned above according to the invention.

[0056] Figure 4 Another embodiment of the packaging structure in the sliding zone 10 is illustrated. In this embodiment, the functional layer 8b of the inner surface of the tubular body forming the lid 3 slides over the functional layer 6b of the outer surface of the tubular body forming the container 2. A gap between the lid layer 8b and the container layer 6b is necessary for easy opening and closing of the container. The size of this gap, as well as the size of the sliding height 5 formed by the stacking of the lid and container, affects the sealing of the packaging relative to water vapor, and is, for example, the size specified above according to the invention.

[0057] Figure 5 Another embodiment of the packaging structure in the sliding zone 10 is illustrated. In this embodiment, the structural layer 6a of the container is trapped between a first functional layer 6b forming the outer surface and a second functional layer 6c forming the inner surface of the tubular body of the container 2.

[0058] exist Figure 5 In the illustrated embodiment, the functional layer 8b of the inner surface of the tubular body forming the lid 3 slides over the functional layer 6b of the outer surface of the tubular body forming the container 2. A gap between the lid layer 8b and the container layer 6b is necessary for easy opening and closing of the container. The size of this gap, as well as the size of the sliding height 5 formed by the stacking of the lid and container, affects the sealing of the packaging relative to water vapor, and is, for example, the size specified above according to the invention.

[0059] Figure 6 A preferred embodiment of the tubular body of container 2 and the tubular body of lid 3 is illustrated. According to this preferred embodiment, the tubular body is made of sheet material, the edges of which are welded or adhesively bonded to form a connecting region 12. Preferably, as described in publications EP2007567, EP2004389, EP2004506 and EP2630052, the ends of the sheet material are butt-welded via reinforcing strips. Alternatively, the edges of the sheet material are welded or adhesively bonded by overlapping their ends.

[0060] Figures 7 to 9An embodiment is illustrated in which the bottom 7 or 9 is connected to the tubular body to form the container 2 or the lid 3, and the continuity of the functional layers 6b / 8b / 7b / 9b for obtaining good barrier properties of the final product in the connection area is also shown.

[0061] Figure 7 An example is shown where an end wall 7 is connected to a tubular body to form a container 2. In this example, the functional layer 7b of the end wall forming the outer surface of the container 2 is welded to the functional layer 6b of the tubular body forming the inner surface of the container 2. Figure 7 An example is also shown where the end wall 9 is connected to the tubular body to form the lid 3. In this example, the functional layer 9b of the end wall forming the outer surface of the lid 3 is welded to the functional layer 8b of the tubular body forming the inner surface of the lid 3. Welding the corresponding functional layers 6b / 7b and 8b / 9b ensures the continuity of the functional layers.

[0062] Figure 8 Another embodiment is illustrated by connecting the bottom 7 to the tubular body to form the container 2 or the lid 3. Figure 8 The continuity of functional layers 6b / 7b and 8b / 9b in the connection area between the connecting end wall 7 and the tubular body is illustrated to obtain good barrier properties for the final product. Figure 8 The bottom 7 is illustrated as being connected to the tubular body to form the container 2. In this example, the functional layer 7b forming the bottom of the inner surface of the container 2 is welded to the functional layer 6b of the tubular body forming the outer surface of the container 2. Figure 8 The bottom 9 is illustrated as being connected to the tubular body to form the lid 3. In this example, the functional layer 9b of the bottom of the inner surface of the lid 3 is welded to the functional layer 8b of the tubular body that forms the outer surface of the lid 3.

[0063] Figure 9 Another embodiment is illustrated by connecting the bottom to the tubular body to form a container 2 or a lid 3. Figure 9 This illustrates the continuity of functional layers in the connecting region for achieving good barrier properties in the final product. Figure 9 The bottom 7 is illustrated as being connected to the tubular body to form the container 2. In this example, the functional layer 7b forming the bottom of the inner surface of the container 2 is welded to the functional layer 6b of the tubular body forming the inner surface of the container 2. Figure 9 The bottom 9 is also illustrated as being connected to the tubular body to form the lid 3. In this example, the functional layer 9b of the bottom of the inner surface of the lid 3 is welded to the functional layer 8b of the tubular body that forms the inner surface of the lid 3.

[0064] Figure 10Another embodiment of the packaging in the sliding zone 10 is illustrated. In this example, the lid 3 has a flared end 14, which facilitates the insertion of the lid 3 onto the container 2. In this example, the flared zone (wherein the gap between the inner wall of the lid and the outer wall of the container varies) is disregarded for the purpose of defining a sliding length 5 that ensures good water vapor barrier properties.

[0065] Figure 10 An alternative solution illustrated for making it easier to insert the lid 3 includes narrowing the end of the container 2 that pushes in the lid 3. In another embodiment, such as Figure 10 For example, the lid 3 can be widened and the end of the container 2 can be narrowed.

[0066] Figure 11 An example of packaging according to the invention is shown, which has an air venting or inlet device 13 for easier opening and closing of the packaging. Preferably, these devices 13 are added to the lid 3. The device 13 is, for example, a valve that allows air to pass through when the pressure difference between the inside and outside of the packaging exceeds a threshold. According to another example, the device 13 is an opening closed by a label that can be repositioned by peeling it off, which is opened by the user when the packaging is opened or closed.

[0067] Figure 12 Water vapor barrier properties of packaging produced according to embodiments of the present invention were compared. Barrier properties were determined by measuring the amount of water entering the packaging as a function of time when placed in an environment of 38°C and 50% humidity. The barrier properties of five packages, designated "Ech-1" to "Ech-5", were compared: - Packages marked "Ech-1" are sealed with welded membrane seals and are used as a reference.

[0068] - The package marked "Ech-2" is closed by a lid that overlaps the container with a radial gap of 0.1 mm and a sliding length of 150 mm.

[0069] - The package marked "Ech-3" is closed by a lid that overlaps the container with a radial gap of 0.1 mm and a sliding length of 100 mm.

[0070] - The package marked "Ech-4" is closed by a lid that overlaps the container with a radial gap of 0.1 mm and a sliding length of 5 equal to 50 mm.

[0071] - Packages marked "Ech-5" are sealed with a lid that overlaps the container with a radial gap of 0.1 mm and a sliding length of 10 mm.

[0072] Figure 12The packaging compared in this study consists of cylindrical containers with a diameter D of 50 mm and a height of 250 mm.2 These packages are manufactured with features such as… Figure 3 The illustrated multilayer structure. The cellulose-based structural layers of container 2 and lid 3, denoted as 6a and 8a respectively, have a mass of 265 g / m³. 2 The mass of the polyethylene-based functional layers, denoted as 6b and 8b, is 18 g / m³. 2 These packages contain 93.6% cellulose.

[0073] The package used for reference, “Ech-1”, has a water vapor permeability of 0.129 g / (package.day.bar).

[0074] The packaging “Ech-2” corresponding to one embodiment of the present invention has a water vapor permeability of 0.118 g / (packing.day.bar), which is 91% of the value of the sealed packaging denoted as “Ech-1”.

[0075] The packaging “Ech-3” corresponding to one embodiment of the present invention has a water vapor permeability of 0.127 g / (packing.day.bar), which is 98% of the value of the sealed packaging indicated as “Ech-1”.

[0076] The packaging “Ech-4” corresponding to one embodiment of the present invention has a water vapor permeability of 0.142 g / (packing.day.bar), which is 110% of the value of the sealed packaging indicated as “Ech-1”.

[0077] The package “Ech-5” with a sliding length of 5 (10 mm) has a water vapor permeability of 0.222 g / (package.day.bar), which is 172% of the value of the sealed package indicated as “Ech-1”.

[0078] Exemplary embodiments have been described to provide a comprehensive understanding of the structure, function, manufacture, and principles of use of the systems and methods disclosed herein. One or more examples of these embodiments are illustrated in the accompanying drawings. Those skilled in the art will understand that the systems and methods specifically described herein and illustrated in the drawings are non-limiting exemplary embodiments, and that the scope of the invention is not limited to the claims. Features illustrated or described in conjunction with one exemplary embodiment may be combined with features of other embodiments. These modifications and variations are intended to be included within the scope of the invention. This document points out many problems with conventional methods and systems, and the methods and systems disclosed herein can solve one or more of these problems. By describing these problems, it is not intended to acknowledge their knowledge in the art. Those skilled in the art will understand that although certain methods and systems have been described herein with respect to several non-limiting embodiments, the scope of the invention is not limited thereto. Moreover, although the invention has been described in conjunction with several embodiments, it will be apparent to those skilled in the art that many alternatives, modifications, and variations will be readily apparent. Therefore, the invention is intended to include and cover all such alternatives, modifications, equivalents, and variations that fall within the spirit and scope of the invention.

Claims

1. A package (1) comprising a first body forming a container (2) and a second body forming a lid (3), the container (2) and the lid (3) having moisture-proof properties at their respective walls (6, 8), the lid (3) having an internal dimension larger than the external dimension of the container (2) and sliding over at least a portion of the outer surface of the container, wherein, during a process of defining a sliding length (5) when the package is opened or closed, a gap created by the difference in dimensions enables the opening and closing without adversely affecting the moisture-proof properties of the package (1), wherein, The sliding length (5) has a predetermined ratio H / D with the external dimension of the container, the predetermined ratio H / D being greater than 1, where H is the sliding length (5) and D is the external dimension of the container (2).

2. The packaging according to claim 1, wherein, The gap is between 0.02 mm and 0.5 mm.

3. The packaging according to claim 1, wherein, The sealing length is greater than 50 mm.

4. The packaging according to claim 1, wherein, The container (2) and the lid (3) each include a bottom (7, 9).

5. The packaging according to claim 1, wherein, At least one of the container (2) and the lid (3) includes a structural layer (6a, 7a, 8a, 9a) and a functional layer (6b, 7b, 8b, 9b) that provide water vapor barrier properties.

6. The packaging according to claim 5, wherein, The structural layer is based on cellulose, and the cellulose content is greater than 70%.

7. The packaging according to claim 5, wherein, The functional layer is made of high-density polyethylene (HDPE) or polypropylene (PP).

8. The packaging according to claim 5, wherein, The functional layer (8b) forming the inner surface of the lid (3) slides over the structural layer (6a) forming the outer surface of the container (2).

9. The packaging according to claim 5, wherein, The functional layer (8b) forming the inner surface of the lid (3) slides over the functional layer (6b) forming the outer surface of the container (2).

10. The packaging according to claim 5, wherein, The structural layer (6a) of the container (2) is trapped between a first functional layer (6b) forming the outer surface of the container (2) and a second functional layer (6c) forming the inner surface of the container (2).

11. The packaging according to claim 1, wherein, The lid (3) includes a flared end (14) for easier insertion of the lid (3) into the container (2), and / or the end of the lid (3) that is pushed into the mating container (2) includes a narrowing portion.

12. The packaging according to claim 1, comprising a tamper detection system (4) for proving that the packaging (1) has been opened for the first time.

13. The packaging according to claim 1, comprising a membrane seal (11) fixed to an end of the container (2).

14. The packaging according to claim 1, including an air outlet or air inlet device (13) for easier opening and closing of the packaging.

15. The packaging according to claim 1, wherein the packaging has a circular, elliptical, rectangular or rectangular cross-section.

16. The packaging according to claim 1, wherein, The container (2) and / or the lid (3) are formed of a tubular body made of sheet material, the ends of which are welded or adhesively bonded to form a connecting area (12).

17. The packaging according to claim 16, wherein, The ends of the sheet are butt-welded via reinforcing strips, or welded or adhesively bonded by overlapping the ends.

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