Packaging with tear-off lid made of sheet material and material set and method for its manufacture

The packaging, constructed with seamless sides and sheet caps through deep drawing, solves the problems of sealing and low production efficiency in existing technologies, and realizes a highly efficient and low-cost packaging manufacturing and filling process.

CN119032049BActive Publication Date: 2026-07-24SOUDRONIC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SOUDRONIC
Filing Date
2022-03-08
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing packaging with tear-off foil caps is prone to contamination during the filling process, has sealing problems, low production efficiency, and high material and production costs.

Method used

The packaging uses seamless sides and sheet caps made from deep-drawn material. The sides have sealing flanges and folded edges. The sides and bottom are made of the same material to avoid welds, ensuring a tight seal and efficient filling.

Benefits of technology

It achieves efficient filling and low-cost production, avoids sealing problems and material waste, and ensures the sealing and stackability of the packaging.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to a package made of sheet material with a tear-off lid. The package comprises a seamless side part (1) manufactured by deep drawing, which forms a package wall (6) surrounding the interior space of the package. The side part (1) forms at a first end part (T) a removal opening surrounded by a sealing flange (2), which is closed with a tear-off lid (3) sealed to the sealing flange (2). The side part (1) is connected at its other, i.e. second end part (B), by a hem to a sheet lid (4) forming a package bottom (7). The package according to the invention can be manufactured cost advantageously from steel and aluminum sheets with low energy and material expenditure, is free of weld seams, can be checked for tightness before filling and enables high filling speeds.
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Description

Technical Field

[0001] The present invention relates to a package with a tear-off foil cap made of sheet material, a material group for constituting such package, a method for manufacturing said material group, and a method for manufacturing such a filled package. Background Technology

[0002] Packaging with a tear-off foil cap (so-called peel end or POE) is known from many different fields, especially as food packaging.

[0003] In its simplest form, this type of packaging consists of two parts: an integral container and a tear-off foil that seals the filling or removal opening of that container. However, these two-piece packages with tear-off foil lids have the disadvantage that filling the container can contaminate the surfaces designed for sealing with the tear-off foil, leading to false seals and thus unsealed packages. To minimize this risk, the filled container must be moved relatively slowly until the tear-off foil is sealed, which significantly limits production speed in this type of packaging. There is also the risk that the filling material may be contaminated during sealing and / or altered due to temperature changes.

[0004] To avoid the drawbacks of the two-piece packaging described earlier, three-part and four-part packaging with a tear-off foil cap have been developed, wherein the container is filled from the end opposite the tear-off foil cap and then the end is closed with a separate sheet cap.

[0005] These three- and four-piece packages have sides consisting of rolled and longitudinally welded plate rings that form the container walls and are closed at a first end with a tear-off foil cap and at a second end with the aforementioned plate cap. Depending on whether it is a three- or four-piece package, the tear-off foil is either directly sealed to a sealing flange formed by the sides (three-piece) or, however, sealed to a separate plate ring connected to the end of the side (four-piece).

[0006] Here, the following disadvantage arises in the three-body variant: the sealing flange passes radially through the weld, which is suboptimal in terms of process technology and may lead to sealing problems.

[0007] The four-body variant has the following disadvantages: additional components (plate rings with sealing flanges) must be supplied and machined, which leads to higher material and production costs and additional waste during manufacturing.

[0008] The aforementioned three- and four-piece packaging also present the following disadvantages: the sheet cap for the bottom of the packaging must be supplied and managed separately, which results in much higher material and production costs and additional waste during manufacturing compared to two-piece packaging.

[0009] According to WO2021 / 176112A1, a three-part packaging component is known, which consists of a deep-drawn cup that, after being filled, is closed by a two-part cap made of a sheet metal ring, the central opening of which is covered by a sealing foil. This variation of the packaging component suffers from the following drawbacks: the handling of this two-part cap is problematic and correspondingly limits production speed. Summary of the Invention

[0010] Therefore, the objective is to provide a package with a tear-off foil cap that does not have, or at least partially avoids, the disadvantages of the prior art mentioned above.

[0011] Accordingly, a first aspect of the present invention relates to a package with a tear-off foil cap made of sheet material. The package includes a seamless side portion manufactured by deep drawing, the side portion forming a package wall surrounding an internal space of the package. The side portion has a first end and a second end and forms an extraction opening at its first end surrounded by a sealing flange, the extraction opening being closed by a tear-off foil cap adhered to or sealed to the sealing flange. The second end of the side portion is connected by a folded edge to a sheet cap forming the bottom of the package.

[0012] The packaging according to the invention can be advantageously manufactured from steel and aluminum plates with low energy and material costs, without welds, according to the method disclosed herein, which also makes virtually no problems of "blackening" and unsealing. The sealing performance of the foil cap can be tested before filling, and a high filling speed can be achieved due to the fillability from the bottom side.

[0013] Advantageously, the sealing flange extends radially outward from the packaging wall formed by the side portion (in a direction away from the center of the removal opening), such that the sealing flange protrudes outward from the packaging wall in the plane of the tear-off foil cap. This provides a removal opening corresponding to the surface of the internal space of the packaging at the first end of the side portion, allowing for the removal of shape-stable filler material by inverting the container, whether the internal space is cylindrical or tapered from the second side end towards the first side end. This is particularly advantageous for food products intended for consumption in a simple, defined form, such as canned tuna or meat patties.

[0014] Preferably, the sealing flange has an edge that surrounds and defines the sealing surface outwards.

[0015] If the sealing flange and the bottom of the package are constructed such that the bottom of the first package can be positioned within the edge of the sealing surface of the same second package, good stackability is achieved, and the stacked packages are centered and locked together by the corresponding edge shapes of the sealing flanges.

[0016] Advantageously, the package wall formed by the side portion defines a substantially cylindrical internal space of the package. Therefore, the side portion can be filled from the second end with a shape-stable filler material, and the filler material can be removed later in the package with a radially outwardly extending sealing flange by means of an inverted, opened package via a removal opening on the first end of the side portion without loss of shape.

[0017] If the walls and bottom of the package are made of the same sheet material, particularly the same coated steel or aluminum sheet, this is preferred, and it has the following advantages: only one sheet material must be managed for its manufacture and a particularly material-saving manufacturing method can be achieved, in which very little sheet waste is generated.

[0018] If the bottom of the package described herein is made of deep-drawn sheet material, the sides and the bottom of the package can be manufactured in at least part of a common manufacturing method.

[0019] The second aspect of the invention relates to a group of materials for constituting a package according to the first aspect of the invention.

[0020] The material assembly includes deep-drawn, seamless sides that form the packaging wall of the package. Each side has a removal opening at a first end surrounded by the sealing flange and a filling opening at a second end. The removal opening can be closed by attaching or sealing a tear-off cap to the sealing flange, and the filling opening can fill the internal space surrounded by the packaging wall, particularly when the tear-off cap is attached or sealed to the sealing flange.

[0021] The material assembly also includes a sheet cap, which can be used to close the filling opening on the side by creating a folded connection between the respective side and the respective sheet cap. The sheet cap then forms the bottom of the finished package.

[0022] If the plate cover described herein is made of the same deep-drawn plate material as the side portion, it has the advantage that the side portion and plate cover can be manufactured in at least a partially common manufacturing method. However, it is also specified that the material group according to the invention consists of separately manufactured side portions and plate covers, or consists of both separately manufactured side portions and plate covers.

[0023] In a preferred embodiment of the material group, the removal openings on the sides are closed by a tear-off foil cap that is adhered to or sealed to the sealing flange, such that the internal space surrounded by the sides is closed at the first end of the sides and can be filled with filler material.

[0024] The material composition according to the invention constitutes the preferred commercial form of the invention.

[0025] A third aspect of the invention relates to a method for manufacturing a group of materials according to a second aspect of the invention. The method includes the following steps:

[0026] a) Manufacture identical deep-drawn cup-shaped containers, each having a cup opening, a closed cup bottom, a surrounding closed cup wall extending between the cup bottom and the cup opening, and a sealing flange surrounding the cup opening;

[0027] b) Separate the bottom of the cup from the container, such that there is a first container portion consisting essentially of the separated bottom of the cup and a second container portion consisting essentially of the respective cup wall and a sealing flange surrounding the respective cup opening;

[0028] c) The first container portion constitutes the plate cover and the second container portion constitutes the side portion.

[0029] The sides and bottom of the cup can be provided in at least a partially common manufacturing process by means of the method according to the invention, thereby generating much less waste and saving material costs compared to providing the bottom of the cup separately.

[0030] Advantageously, the bottom of the cup is separated from the corresponding container along with a portion of the cup wall, such that the separated portion of the cup wall forms a uniformly high sleeve surrounding the bottom of the cup. This sleeve can then be shaped in another processing step to form the folded edge of the lid.

[0031] In a preferred embodiment, the method further includes the step of sealing or adhering a foil cap to a sealing flange of the second container portion, such that the cup opening is completely closed by the foil cap. Thus, a second container portion is provided in which the internal space surrounded by the side is closed at a first end of the side and can be filled with filler material from a second end of the side.

[0032] Here, it is further preferred that a sealing test be performed on the second container portion equipped with the tear-off foil cap after sealing or gluing. In this way, the unsealed second container portion can be separated before filling, thereby ensuring the high quality of the packaging.

[0033] In another preferred embodiment, the method additionally includes the step of: forming the sleeve of the first container portion or forming the ends of the sleeve of the first container portion and the cup wall of the second container portion that form the filling opening, such that these areas can be formed in another step as a folded connection between one of the first container portions and one of the second container portions for closing the filling opening of the second container portion using the first container portion. Therefore, in the material assembly manufactured using this embodiment, the sides and the plate cap are already prepared for manufacturing the folded connection between them.

[0034] Preferably, the end of the cup wall of the second container portion that forms the filling opening is optionally shaped before the foil cap is sealed or adhered to the sealing flange.

[0035] Preferably, the sealing flanges of the cup-shaped container are constructed such that they extend radially outward from the cup opening (i.e., away from the center of the cup opening), and protrude outward from the packaging wall in the plane of the tear-off foil cap. In this way, an extraction opening corresponding to the surface of the packaging's internal space at a first end on the side is provided, allowing the shape-stable filler material to be removed by inverting the opened packaging for cylindrical internal spaces or for internal spaces that taper from a second side end towards a first side end. This is particularly advantageous for food products that should be presented in a simple, defined form for consumption, such as canned tuna or meat patties.

[0036] Preferably, the sealing flange is constructed such that it has an edge that surrounds and defines the sealing surface outward.

[0037] Advantageously, the cup-shaped container is manufactured such that the packaging walls formed by the sides define a substantially cylindrical internal space within the packaging. Therefore, it is possible to provide a material set in which the sides can be filled from the second side end with a shape-stable filler material, and in embodiments with radially outwardly extending sealing flanges, the filler material can later be removed without loss of shape by inverting the opened packaging onto a removal opening at the first end of the side.

[0038] In another preferred embodiment of the method, the deep-drawn cup-shaped containers are made from sheet blanks, which are stamped out at the cup-shaped container manufacturing site from, in particular, coated sheet webs, especially from steel or aluminum plates.

[0039] In yet another preferred embodiment of the method, the foil cap is stamped out from the foil web at the manufacturing site of the cup-shaped container. This can be done outside or inside the sealing device.

[0040] Therefore, the following advantages are achieved: the material group can be manufactured on a single site from semi-finished materials in a continuous process, without the need for intermediate storage and / or transportation of intermediate products.

[0041] A fourth aspect of the invention relates to a method for manufacturing a filled package according to a first aspect of the invention. The method includes the following steps:

[0042] a) Manufacture identical deep-drawn cup-shaped containers, the containers having a cup opening, a closed cup bottom, a surrounding closed cup wall extending between the cup bottom and the cup opening, and a sealing flange surrounding the cup opening;

[0043] b) Separate the cup bottom and a portion of the cup wall from the corresponding container in such a way that a first container portion exists, the first container portion being formed by the separated cup bottom together with the separated portion of the cup wall, the separated portion of the cup wall forming a uniformly high sleeve around the cup bottom, and a second container portion existing, the second container portion being formed by the remaining portion of the cup wall and a sealing flange surrounding the cup opening, the end of the remaining portion of the cup wall opposite to the sealing flange forming a filling opening;

[0044] c) Seal or adhere the foil cap to the sealing flange of the second container portion in such a way that the cup opening is completely closed by the foil cap;

[0045] d) The sleeve of the first container portion or the sleeve of the first container portion and the cup wall of the second container portion are respectively shaped to form the end of the filling opening, such that these areas can be respectively formed in a second step as a folded connection between one of the first container portions and one of the second container portions, such that the first container portion closes the filling opening of the second container portion.

[0046] e) After sealing or attaching the foil cap to the filling opening, fill the second container portion with filler material; and

[0047] f) By attaching the first container portion adjacent to the second container portion and establishing the folded connection between the first container portion and the second container portion, the filling opening of the filled second container portion is closed using one of the first container portions.

[0048] Therefore, in the method, one or more material groups are manufactured according to the second aspect of the invention, and the material groups are processed into a filled package according to the first aspect of the invention by filling a second container portion and closing the filling opening with a first container portion.

[0049] Preferably, the filling openings of the corresponding filled second container portions are closed by the first container portions that have been previously separated from the second container portions.

[0050] Alternatively, preferably, the filling openings of the respective filled second container portions are closed by the first container portions that have been separated from the other second container portion.

[0051] In cases where individual first container parts are lost or unusable, it is also stipulated that these first container parts shall be replaced by separately manufactured plate covers.

[0052] In a preferred embodiment of the method according to a fourth aspect of the invention, during the time period of optionally forming the end of the cup wall of the second container portion that forms the filling opening, sealing or adhering the foil cap to the sealing flange of the second container portion, and / or filling the second container portion, a sleeve for closing the filling opening of the corresponding second container portion is formed. In this way, continuous production can be achieved without the need for costly intermediate storage of the first container portions.

[0053] Advantageously, the ends of the cup wall of the corresponding second container portion constituting the filling opening can be optionally shaped before the foil cap is sealed or adhered to the sealing flange. This significantly simplifies the handling of the second container portion used in the shaping step.

[0054] Preferably, the sealing flanges of the cup-shaped container are constructed such that they extend radially outward from the cup opening (in a direction away from the center of the dispensing opening), and protrude outward from the packaging wall in the plane of the tear-off foil cap. In this way, a dispensing opening corresponding to the surface of the packaging's internal space at a first end on the side is provided, allowing for the removal of shape-stable filler material via the dispensing opening for cylindrical internal spaces or for internal spaces that taper from a second side end towards a first side end, by inverting the opened packaging. This is particularly advantageous for food products intended for consumption in a simple, defined form, such as canned tuna or meat patties.

[0055] Alternatively, the sealing flange may be constructed such that it has an edge that surrounds and defines the sealing surface outwards.

[0056] Advantageously, the sealing flange and the bottom or folded edge connection of the package between the first container portion and the second container portion are respectively constructed such that the bottom of the first package can be positioned within the edge of the sealing flange of the same second package that points outwards to the sealing surface. This results in good stackability of the manufactured packages, while the stacked packages are centered and locked together by the corresponding edge shapes of the sealing flanges.

[0057] Preferably, the cup-shaped container is manufactured such that it has a substantially cylindrical internal space. Therefore, it is possible to fill the second container portion from the second side end with a shape-stable filler material, and in embodiments with radially outwardly extending sealing flanges, the filler material can subsequently be removed without loss of shape via the removal opening from an inverted, opened package.

[0058] In another preferred embodiment of the method, the deep-drawn cup-shaped containers are manufactured from sheet blanks, which are stamped out at the cup-shaped container manufacturing site from, in particular, coated sheet webs, especially from steel or aluminum plates.

[0059] In another preferred embodiment of the method, the foil caps are stamped out from foil webs at the manufacturing site of the cup-shaped container.

[0060] Therefore, the following advantages are achieved: the packaging can be manufactured on a single site from semi-finished materials in a continuous process, without the need for intermediate storage and / or transportation of intermediate products.

[0061] Advantageously, a sealing test is performed on the respective second container portions equipped with tear-off foil caps before filling. In this way, unsealed second container portions can be separated before filling, thereby ensuring the high quality of the filled packages. Attached Figure Description

[0062] Other embodiments, advantages, and applications of the invention will become apparent from the dependent claims and the following description with reference to the accompanying drawings. In the drawings:

[0063] Figure 1 A perspective top view of a tuna can with a tear-off foil lid according to the present invention is shown;

[0064] Figure 2 Schematic illustration of the use of the present invention for constructing Figure 1 The manufacture of materials for the tuna can; and

[0065] Figure 3 schematically showing from Figure 2 The materials group in the middle began to study Figure 1 The manufacture of tuna cans. Detailed Implementation

[0066] Figure 1 A perspective top view of a package according to the invention is shown, the package being a three-part can filled with tuna and having a tear-off foil lid.

[0067] The tank includes a seamless side 1 made of coated steel sheet manufactured by deep drawing, which forms the tank wall 6 that surrounds the cylindrical interior space of the tank.

[0068] Side 1 forms an extraction opening at its upper end T (according to the first end of claim 2) surrounded by a sealing flange 2, which is closed by a foil cap 3 sealed to the sealing flange 2 and is therefore invisible. The foil cap 3 has a tear strip 14 by which the foil cap can be pulled down from the sealing surface of the sealing flange 2 to open the can.

[0069] Side 1 is connected to the plate cover 4 constituting the bottom of the tank 7 by a folded edge 12 at its lower end B (the second end according to claim 1). The plate cover 4 is made of the same material as side 1.

[0070] As can be seen, the sealing flange 2 extends radially outward from the can wall 6 formed by the side portion 1, such that the sealing flange protrudes outward from the can wall 6 in the plane of the foil cover 3.

[0071] Here, the sealing flange 2 and the bottom of the package 7 are constructed such that the bottom of the first can's package 7 can be positioned within the edge 5 of the sealing surface of the same second can facing outwards.

[0072] Therefore, good stackability of the cans is achieved, while the stacked cans are centered together by the shape-locking edge 5 of the sealing flange 2 of the corresponding lower can.

[0073] Figure 2 This schematically illustrates the use of the second aspect of the invention for constructing the invention. Figure 1 The manufacturing of the materials used in the tuna can. For simplicity, only the manufacturing of the side 1 and the lid 4 are shown.

[0074] As can be seen, this refers to a deep-drawn cup 9 (a cup-shaped container according to claim) made of coated steel sheet, the cup having a cup opening, a closed cup bottom, a surrounding closed cup wall 6 extending between the cup bottom and the cup opening, and a sealing flange 2 surrounding the cup opening. The sealing surface of the sealing flange 2 of the cup 9 is defined outwardly by an upwardly projecting edge 5.

[0075] In the first processing step, the deep-drawn cup 9 is divided into a first cup portion 10 (the first container portion according to claim 6a) and a second cup portion 11 (the second container portion according to claim 6a) by separating the cup bottom from a portion 6a of the cup wall. The first cup portion 10 is composed of the separated cup bottom and the separated portion 6a of the cup wall, which together form a uniformly high sleeve surrounding the cup bottom. The second cup portion 11 is composed of the remaining portion of the cup wall 6b and a sealing flange 2 surrounding the cup opening.

[0076] In another step, the separated first cup portion 10 and second cup portion 11 are converted into the side portion 1 and plate cover 4 of the material group 1, 4. For this purpose, the end B of the sleeve 6a of the first cup portion 10 and the cup wall 6b of the second cup portion 11 that subsequently constitute the filling opening is shaped such that these areas can be formed in another step by the flange connection 12 between the plate cover 4 constituting the first cup portion 10 and the side portion 1 constituting the second cup portion 11, so as to seal the filling opening of the side portion 1 with the plate cover 4.

[0077] Figure 3 Schematic illustration from according to Figure 2 Side 1 and plate cover 4 begin to be aligned according to Figure 1 The manufacture of tuna cans. For simplicity, only the manufacture of tuna cans will be shown and described here.

[0078] As can be seen, provide according to Figure 2 The side portion 1 and the plate cover 4, as well as the foil cover 3, are sealed to the sealing flange 2 of the side portion 1, so that the original cup opening is completely and tightly closed by the foil cover 3. Here, the tear strip 14 of the foil cover 3 is folded toward the center of the can.

[0079] After sealing the foil cap 3, the side portion 1 is inverted so that the foil cap 3 points downwards and the filling opening formed by the bottom end B of the side portion 1 points upwards. In this orientation, the tuna filling 13 is then introduced through the filling opening into the internal space 8 of the can, which is surrounded by the can wall 6 of the side portion 1, in the form of a stable patty. This internal space has a cylindrical shape that complements the shape of the patty, so that the internal space 8 is practically completely filled with tuna filling.

[0080] Preferably, before filling the side portion 1, a sealing test is first performed on the side portion 1 with the foil cover 3, but this is not shown here.

[0081] After filling, the plate cover 4 is placed on the bottom end B of the side 1 and then a folded connection 12 is made between the plate cover 4 and the side 1, thereby sealing the side 1 at its bottom end.

[0082] After sealing the filling opening with the sheet cap 4, invert the now-completed tuna can so that the foil cap 3 points upwards and the sheet cap 4 forms the bottom 7 of the can.

[0083] While preferred embodiments of the invention have been described in this application, it should be clearly understood that the invention is not limited to these embodiments and may be implemented in other ways within the scope of the appended claims.

Claims

1. A package with a tear-off foil cap made of sheet material, the package including a seamless side (1) manufactured by deep drawing, the side forming a package wall surrounding the interior space of the package and having a first end (T) and a second end (B). in, The side portion (1) forms an extraction opening at its first end (T) surrounded by a sealing flange (2), the extraction opening being closed by a foil cap (3) adhered to or sealed to the sealing flange (2). Furthermore, the side (1) is connected to the sheet cover (4) that forms the bottom (7) of the package by a fold at its second end (B).

2. The packaging according to claim 1, wherein, The sealing flange (2) extends radially outward from the package wall formed by the side portion (1).

3. The packaging according to claim 1, wherein, The sealing flange (2) has an edge (5) that surrounds the sealing surface and defines it externally.

4. The packaging according to claim 3, wherein, The sealing flange (2) and the bottom of the package (7) are configured such that the bottom of the package (7) of one package can be positioned within the edge (5) of the sealing surface of the same other package facing outwards.

5. The packaging according to claim 1, wherein, The packaging wall defines a cylindrical internal space of the packaging (8).

6. The packaging according to claim 1, wherein, The packaging wall and the packaging bottom (7) are made of the same sheet material.

7. The packaging according to any one of claims 1 to 6, wherein, The bottom (7) of the package is made of deep-drawn sheet material.

8. A group of materials for constituting the packaging according to claim 1, the group of materials comprising: a) A seamless side portion (1) manufactured by deep drawing, the side portion forming the packaging wall of the package, the side portion forming an extraction opening surrounded by a sealing flange (2) at a first end (T) and a filling opening at a second end (B); and b) Plate cover (4), which can close the filling opening of the side (1) by forming a folded connection between the corresponding side (1) and the corresponding plate cover (4).

9. The material group according to claim 8, wherein, The plate cover (4) is made of the same deep-drawn plate material as the side (1).

10. The material group according to claim 9, wherein, The removal openings of the side (1) are closed by a foil cap (3) that is glued to or sealed onto the sealing flange (2).

11. A method for manufacturing the group of materials according to any one of claims 8 to 10, the method comprising the following steps: a) Manufacture identical deep-drawn cup-shaped containers (9), each having a cup opening, a closed cup bottom, a surrounding closed cup wall (6) extending between the cup bottom and the cup opening, and a sealing flange (2) surrounding the cup opening. b) Separate the bottom of the cup from the container (9) to form a first container portion (10) consisting of the separated bottom of the cup and a second container portion (11) consisting of the corresponding cup wall (6) and a sealing flange (2) surrounding the corresponding cup opening. c) The plate cover (4) is formed by the first container portion (10) and the side portion (1) is formed by the second container portion (11).

12. The method according to claim 11, wherein, The bottom of the cup is separated from the corresponding container along with a portion (6a) of the cup wall, such that the separated portion (6a) of the cup wall forms a uniformly high sleeve around the bottom of the cup.

13. The method according to claim 11, wherein the method comprises the following steps: The foil cap (3) is sealed or glued to the sealing flange (2) of the second container part (11) so that the cup opening is completely closed by the foil cap (3).

14. The method according to claim 13, wherein, After sealing or gluing, a sealing test is performed on the second container portion (11) equipped with the tear-off foil cover (3).

15. The method according to claim 11, further comprising the step of: The sleeve of the first container portion (10) and the cup wall (6) of the second container portion (11) are respectively shaped to form the ends (B) constituting the filling opening, so that these areas can be shaped in another step to form a folded connection (12) between one of the first container portions (10) and one of the second container portions (11) for use in closing the filling opening of the second container portion (11) with the first container portion (10).

16. The method according to claim 15, wherein, Before sealing or attaching the foil cap (3) to the sealing flange (2), the end of the cup wall (6) of the second container portion (11) that forms the filling opening is formed.

17. The method according to claim 11, wherein, The sealing flanges (2) of the cup-shaped container (9) are respectively configured such that the sealing flanges extend radially outward from the cup opening.

18. The method according to claim 17, wherein, The sealing flanges (2) of the cup-shaped container (9) are respectively configured such that the sealing flanges have an edge (5) that surrounds the external sealing surface.

19. The method according to claim 11, wherein, The deep-drawn cup-shaped container (9) has a cylindrical internal cup space (8).

20. The method according to claim 11, wherein, The deep-drawn cup-shaped containers (9) are made from sheet blanks, which are stamped out from sheet webs at the manufacturing site of the cup-shaped containers (9).

21. The method according to claim 11, wherein, The foil caps (3) are stamped out from foil webs at the manufacturing site of the cup-shaped container (9).

22. A method for manufacturing a filled package according to any one of claims 1 to 6, the method comprising the steps of: a) Manufacture identical deep-drawn cup-shaped containers (9) having a cup opening, a closed cup bottom, a surrounding closed cup wall (6) extending between the cup bottom and the cup opening, and a sealing flange (2) surrounding the cup opening. b) Separate the bottom of the cup and a portion of the cup wall (6a) from the corresponding container (9) to form a first container portion (10) for forming the plate cover (4), the first container portion being formed by the separated bottom of the cup together with the separated portion (6a) of the cup wall forming a uniformly high sleeve around the bottom of the cup, and a second container portion (11) for forming the side (1), the second container portion being formed by the remaining portion (6b) of the cup wall and a sealing flange (2) around the opening of the cup; c) Seal or glue the foil cap (3) onto the sealing flange (2) of the second container part (11) respectively, so that the cup opening is completely closed by the foil cap (3); d) Form the ends (B) of the sleeve of the first container part (10) and the cup wall (6) of the second container part (11) that form the filling opening, so that these areas can be formed in another step into a folded connection (12) between one of the first container parts (10) and one of the second container parts (11), so that the first container part (10) closes the filling opening of the second container part (11); e) After sealing or sticking the foil cap (3) to the filling opening, the second container portion (11) is filled with filling material (13). f) By attaching the first container portion (10) to the second container portion (11) and establishing the folded connection (12) between the first container portion (10) and the second container portion (11), the filling opening of the filled second container portion (11) is closed by one of the first container portions (10).

23. The method according to claim 22, wherein, The filling openings of the corresponding filled second container portion (11) are closed by the first container portion (10) which has been previously separated from the second container portion (11).

24. The method according to claim 22, wherein, The filling openings of the corresponding filled second container portion (11) are closed by the first container portion (10) which has been separated from the other second container portion (11).

25. The method according to claim 22, wherein, During the time period of forming the end (B) of the cup wall of the second container part (11) that constitutes the filling opening, sealing or sticking the foil cap (3) to the sealing flange (2) of the second container part (11) and / or filling the second container part (11), forming the sleeve of the corresponding first container part (10), the sleeve being used to close the filling opening of the corresponding second container part (11).

26. The method according to claim 22, wherein, Before sealing or attaching the foil cap (3) to the sealing flange (2), the end (B) of the cup wall of the corresponding second container portion (11) that constitutes the filling opening is formed.

27. The method according to claim 22, wherein, The sealing flanges (2) of the cup-shaped container (9) are respectively configured such that the sealing flanges extend radially outward from the cup opening.

28. The method according to claim 27, wherein, The sealing flanges (2) of the cup-shaped container (9) are respectively configured such that the sealing flanges have an edge (5) that surrounds the sealing surface and points outward.

29. The method according to claim 28, wherein, The sealing flange (2) and the folded connection (12) between the first container portion (10) and the second container portion (11) are respectively configured such that the bottom (7) of one package can be set within the edge (5) of the sealing surface of another package customized to the outside.

30. The method according to claim 22, wherein, The deep-drawn cup-shaped containers (9) are each constructed such that the containers have a cylindrical cup interior space (8).

31. The method according to claim 22, wherein, The deep-drawn cup-shaped containers (9) are manufactured from sheet blanks, which are stamped out from sheet webs at the packaging manufacturing site.

32. The method according to claim 22, wherein, The foil caps (3) are stamped out from foil webs at the manufacturing site of the packaging.

33. The method according to claim 22, wherein, Before filling the second container portion (11), a sealing test is performed on the respective second container portion (11) provided with the foil cover (3).

Citation Information

Patent Citations

  • WO2021176112A1

  • CH530310A