Packaging die-cut, packaging with a tube made of side walls and method for producing packaging from a packaging die-cut

DE102025000680A1Undetermined Publication Date: 2026-08-27BROHL WELLPAPPE
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Patent Information

Application Number
DE102025000680
Authority / Receiving Office
DE · DE
Patent Type
Applications
Current Assignee / Owner
Filing Date
2025-02-25
Publication Date
2026-08-27

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Abstract

A die-cut packaging element has side walls and a glue tab that can be folded and glued to form a tube with a longitudinal dimension. It also has end flaps that can be folded and glued to form an end face. This die-cut packaging element has an inner ring surface that can be positioned inside the tube, aligning its longitudinal dimension with the tube's length. At least one side wall or the glue tab is connected to the inner ring surface at a connecting edge. A package can be created from the die-cut packaging element by folding, creasing, and gluing; this package can also include a removable lid.
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Description

The invention relates to a packaging die, a package with a tube made of side walls and a method for producing a package from such a packaging die. In particular, the invention relates to a packaging die-cut with side walls and an adhesive flap which can be folded and glued to form a tube with a longitudinal extension, and end flaps which can be folded and glued to form an end surface. Such packaging sometimes has an internal reinforcement formed by a glued-in, closed inner ring. For this purpose, an inner ring is placed inside the tube with its longitudinal extent aligned with the longitudinal extent of the tube. For this, the production routing up to the stamping stage must be completely repeated once for the side walls and once for the inner ring. Only in the final production step, the gluing process, are the two parts joined together. For this, the gluing machine must be equipped with an additional unit. This makes the production of such packaging very complex and expensive. The invention is therefore based on the objective of designing a packaging that can be processed on standard machines without additional equipment. This problem is solved by a packaging die according to claim 1, a packaging according to claim 9 and a method according to claim 11 for producing a packaging from such a packaging die. Fortunately, it has turned out that the problem can already be solved by manufacturing the side walls and the inner ring in one piece as a single packaging die-cut in the manner according to the invention. Therefore, only a single packaging die is required to produce a package with a lid and / or a base, reinforced internally by an inner ring. To manufacture a package from such a die, the production routing only needs to be completed once for the side walls and the inner ring. Afterward, only the single die is folded and glued to create the package. Such a die-cut packaging blank can be provided not only for square or rectangular packaging, but also for packaging with more or fewer corners. Preferably, the side walls have at least three and preferably four walls and an adhesive flap, whereby, for example, for a hexagonal package, the side walls can have six walls and an adhesive flap. The packaging die-cut piece has end flaps that can either be used to create a lid or bottom on one side only, or end flaps can be provided on both sides of the packaging die-cut piece to provide a lid and a bottom. A simple manufacturing method stipulates that the forehead flaps have at least two longer and one shorter flap. According to the invention, at least one side wall is connected to an inner ring surface at a connecting edge. However, it is advantageous if at least two side walls are connected to the inner ring surface. This facilitates handling and increases stability. Similar to the side walls, it is also advantageous for the inner ring surfaces to have at least three, and preferably four, inner walls and an inner wall adhesive tab. The inner wall adhesive tab is not strictly necessary for the inner ring surface. It is particularly advantageous if the side walls have a predetermined breaking point extending through all side walls and the adhesive flap. Such a predetermined breaking point can, in the form of a perforation, allow the lid to be lifted off. To provide packaging that has a long hollow body in its longitudinal extension and a shorter lid in this longitudinal extension, it is proposed that the predetermined breaking point separates the side walls and the adhesive flap into a shorter area further away from the joining edge - for the lid - and a longer area closer to the joining edge - for the rest of the packaging. It is particularly advantageous if the inner ring is longer than the shorter section located closer to the connecting edge. This allows the inner ring to extend into the lid, so that when the package is opened, the inner ring protrudes from the rest of the packaging. The lid can then be placed over the inner ring to reseal the opened package. Such a packaging die-cut makes it possible to produce a packaging with a tube made of side walls and an adhesive flap with a longitudinal extent, an end face and an inner ring which is placed with its longitudinal extent in alignment with the longitudinal extent of the tube, wherein at least one side wall is connected to the inner ring surface at a connecting edge. This particularly easy-to-manufacture packaging with the inner ring reinforced can have a predetermined breaking point on the side walls and the adhesive flap, arranged in such a way as to allow the lid to be detached. The invention also protects a method for producing packaging from such a packaging die-cut, in which the inner ring surface is folded around the connecting edge onto the side walls, side walls are folded around the longitudinal extent and glued together, and end flaps are glued to form an end surface. An embodiment of the invention is illustrated in the drawing and is explained in more detail below. Fig. 1 shows a packaging die in a top view, Fig. 2 shows the packaging die shown in Fig. 1 in a side view, Fig. 3 shows the packaging die shown in Fig. 2 with the inner ring folded in and the side walls partially folded in, Fig. 4 shows the packaging die shown in Fig. 3 with the side walls completely folded in, Fig. 5 shows an erected package made from the packaging die shown in Fig. 4, and Fig. 6 shows the package shown in Fig. 5 with the predetermined breaking point open and the lid lifted. The packaging blank 1 shown in Fig. 1 has four side walls 2, 3, 4, and 5. These side walls can each be folded at 90 degrees relative to each other, forming the tube 6 shown in Fig. 5. This tube 6, like the side walls, has a longitudinal extension 7. End flaps 8, 9, 10, and 11 on the side walls 2, 3, 4, and 5 allow the formation of a base, a packaging 16 shown in Fig. 5, while end flaps 12, 13, 14, and 15 form the upper termination of a lid 17. This creates end faces 18 and 19 at opposite ends of the packaging 16. The packaging die 1 has an inner ring surface 20 which, in a folded form, can be placed inside the tube 6 as an inner ring 35 with a longitudinal extent 7 aligned with the longitudinal extent 7 of the tube 6. This inner ring 35 is not visible in Fig. 5 because it is hidden inside the packaging 16. Of the side walls 2, 3, 4 and 5 and the adhesive tab 21, the side walls 3 and 5 are connected with their end tabs 9 and 11 at the connecting edges 22 and 23 to the inner ring surface 20. End plates 24 and 25 connect to the connecting edges 22 and 23 on the side walls 27 and 29 of the four side walls 26 to 29 of the inner ring surface 20. An adhesive tab 30 enables the side walls 26 to 29 of the inner ring surface 20 to be bonded together to form an inner ring 35. The end flaps 8 to 15 on the side walls 2 to 5 and the adhesive flap 21 have at opposite ends for the lid and the bottom two longer (13 and 15 or 8 and 10 respectively) and two shorter flaps (12 and 14 or 9 and 12 respectively). In the exemplary embodiment, the side walls 3 and 5 are connected to the inner ring surface 20, whereas in practice other side walls or adhesive tabs may also be connected to the inner ring surface 20. A predetermined breaking point 31 extends transversely to the longitudinal extent 7 as a perforation through the side walls 3, 4 and 5 and the adhesive flap 21. The predetermined breaking point 31 separates the side walls 3, 4, 5 and the adhesive flap 21 into a shorter area 32 located further away from the joining edge and a longer area 33 located closer to the joining edge. Since the length 34 of the inner ring 35 is longer than the longer area 33 which is less far from the connecting edge 22, 23, the inner ring 35, as shown in Fig. 6, projects beyond the side walls 2, 3, 4 and 5 to accommodate a cover 17. The packaging 16 shown in Figures 5 and 6 is formed when the die-cut packaging blank is folded, glued, and erected. The packaging 16 then has a tube 6 consisting of side walls 2 to 5 and a glue flap 21 with a longitudinal extent 7. It also has end faces 18 and 19. The inner ring 35, made from the four inner walls 26 to 29 and the inner wall adhesive tab 30, is positioned in the tube 6 with its longitudinal extent 7 aligned. The side walls 3 and 5 are connected to the inner ring surface 20 at the connecting edges 22 and 23. The predetermined breaking point 31 is provided on the side walls 2, 3, 4, 5 and the adhesive flap 21 in such a way that it allows the lid 17 to be separated from the rest of the packaging. The predetermined breaking point 31, designed as a perforation, has at least one wave 36 which makes it easier to open the perforation by pressing on the cover 17 in order to lift off the cover 17. This packaging shown in Fig. 6 can be produced in a very simple way by folding the inner ring surface 20 of the packaging die 1 around the connecting edge 22, 23 onto the side walls 2 to 5, folding the side walls 2 to 5 around the longitudinal extent 7 and gluing them together, and gluing end flaps 8 to 15 to end surfaces on the lid and the bottom.

Claims

Packaging die (1) with side walls (2, 3, 4, 5) and an adhesive flap (21) which can be folded and glued to form a tube (6) with a longitudinal extent (7), and end flaps (8 - 15) which can be folded and glued to form an end surface (18, 19), characterized in that the packaging die (1) has an inner ring surface (20) which can be placed in the tube (6) as an inner ring (35) with its longitudinal extent (7) in the orientation of the longitudinal extent (7) of the tube (6), and at least one side wall (2, 3, 4, 5) or the adhesive flap (21) is connected to the inner ring surface (20) at a connecting edge (22, 23). Packaging die according to claim 1, characterized in that the side walls (2, 3, 4, 5) have at least three and preferably four side walls and the adhesive flap (21). Packaging die according to claim 1 or 2, characterized in that the end flaps (8 - 15) have at least two longer flaps (8, 10 and 13, 15) and two shorter flaps (9, 11 and 12, 14). Packaging die according to one of the preceding claims, characterized in that at least two side walls (3, 5) are connected to the inner ring surface (20). Packaging die according to one of the preceding claims, characterized in that the inner ring surface (20) has at least three and preferably four inner walls (26 - 29) and an inner wall adhesive tab (30). Packaging die-cut according to one of the preceding claims, characterized in that the side walls (2, 3, 4, 5) and the adhesive flap (21) have a predetermined breaking point (31) extending through all side walls (2, 3, 4, 5) and the adhesive flap (21). Packaging die according to claim 6, characterized in that the predetermined breaking point (31) separates the side walls (2, 3, 4, 5) and the adhesive flap (21) into a shorter area (32) further away from the connecting edge (22, 23) and a longer area (33) less far away from the connecting edge (22, 23). Packaging die according to claim 7, characterized in that the length (34) of the inner ring (35) is longer than the longer area (33) which is less far from the connecting edge (22, 23). Packaging (16) with a tube (6) made of side walls (2, 3, 4, 5) and a glue tab (21) having a longitudinal extension (7), an end face (18, 19) and an inner ring (35) which is placed in the tube (6) with its longitudinal extension (7) in alignment with the longitudinal extension (7), characterized in that at least one side wall (2, 3, 4, 5) is connected to the inner ring surface (20) at a connecting edge (22, 23). Packaging according to claim 9, characterized in that a predetermined breaking point (31) is arranged on the side walls (2, 3, 4, 5) and the adhesive flap (21) in such a way that it enables the removal of a lid (17). Method for producing a packaging (16) from a packaging die (1) according to one of claims 1 to 8, in which the inner ring surface (20) is folded around the connecting edge (22, 23) onto the side walls (2, 3, 4, 5), the side walls (2, 3, 4, 5) are folded around the longitudinal extent (7) and glued together and end flaps (8 - 15) are glued to form an end surface (18, 19).

Citation Information

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