Folding blank for forming a carton ring of a beverage carton, method for producing a beverage carton, and beverage carton

Abstract

The invention relates to a folding blank for forming a carton ring (23) of a beverage carton (12), having a plurality of wall sections connected to one another by means of fold lines, wherein free ends of gable wall sections (19a-d), which free ends face away from the side wall sections (14a-d), are each connected, via a sealing fold line (24), to a gable sealing flap (25), and free ends of the bottom wall sections (21a-d), which free ends face away from the side wall sections (14a-d), are each connected, via a sealing fold line (24), to a bottom sealing flap (28), and wherein, on two gable wall sections (14a-d) that are opposite one another when the carton ring (23) is erected, extension sealing flaps (33a-d) are formed at the free ends of said sections of the gable sealing flap (25) and are connected to the gable sealing flap (25) via extension fold lines (32), whereas the bottom sealing flap (28) is free from such extension sealing flaps (33a-d).

Description

[0001] Folding die for forming a cardboard ring of a beverage carton, method for manufacturing a beverage carton and beverage carton

[0002] The invention relates to a folding blank for forming a cardboard ring of a beverage carton, with several wall sections connected to one another by means of fold lines, of which several side wall sections are arranged in a longitudinal direction of the folding blank via a lateral fold line each, which are each connected in a vertical direction perpendicular to the longitudinal axis of the folding blank at a top via an upper fold line to a gable wall section and at an opposite bottom via a lower fold line to a bottom wall section, wherein of the side wall sections a middle side wall section is flanked by two outer side wall sections, wherein side wall sub-sections are attached to each of the outer side wall sections which, in a state assembled to form a cardboard ring, complete a fourth side wall section, or wherein four side wall sections are provided.of which at least one outer side wall section has a vertically extending side wall sealing tab arranged via a lateral fold line, which in a state assembled to form the cardboard ring is attached to the other outer side wall section, wherein free ends of the gable wall sections facing away from the side wall sections are each connected via a seal fold line to a gable seal tab and free ends of the bottom wall sections facing away from the side wall sections are each connected via a seal fold line to a bottom seal tab.

[0003] A beverage carton can be produced from the folded blank in several work steps. Such beverage cartons have been known for a long time and are omnipresent in everyday life, for example as milk cartons or fruit juice cartons.

[0004] A folding blank of the type mentioned above is known, for example, from DE 34 34 427 A1, wherein the folding blank, or the blank part, is produced from a sheet of cardboard fed from a roll. The upper and lower edges are provided with short linear incisions along the notch lines, which form side panels. Above and below the side panels are gable and bottom wall sections with closing triangles, wherein above the gable wall section a gable flap extending over all side panels is formed and below the bottom section a bottom flap extending over all side panels is formed. Folding the folding blank into a cardboard ring and subsequently completing it to form a beverage carton is not so easily feasible if an upright gable is to be formed and requires additional measures.

[0005] The purpose of the invention is therefore to provide a folding blank for forming a cardboard ring of a beverage carton, a method for manufacturing a beverage carton and a beverage carton that are characterized by greater variability compared to conventional folding blanks, manufacturing methods and beverage cartons.

[0006] This problem is solved by a folding blank for forming a beverage carton with the features of independent claim 1, a beverage carton with the features of independent claim 10, and a method for producing a beverage carton with the features of independent claim 13. Further developments of the invention are presented in the dependent claims.

[0007] The inventive folding cut is characterized by the fact that, on two gable wall sections opposite each other in the state of the unfolded cardboard ring, extension sealing tabs are formed at the free end of the sections of the gable sealing tab present there via extension folding lines, whereas the bottom sealing tab is free of extension sealing tabs.

[0008] A cuboid beverage carton with an upright gable end can be produced from the inventive folding template. Simultaneously, the bottom of the beverage carton can be designed as a so-called "fin-seal bottom." The extended sealing tabs allow sealing at the upright gable end, which is not possible with the previously described folding template from the prior art, since the gable sealing tab has a consistent height and therefore no area is available for sealing when the gable end is folded and erected.

[0009] In a further development of the invention, two gable wall sections opposite each other in the state of the unfolded cardboard ring each have foldable gable closing triangles via associated upper fold lines, while the other two gable wall sections are free of gable closing triangles.

[0010] In a further development of the invention, two opposite bottom wall sections in the unfolded cardboard ring state each have foldable bottom closing triangles via associated lower fold lines, while the other two bottom wall sections are free of bottom closing triangles.

[0011] It is possible that on the side wall sections where gable-shaped sealing triangles are formed on the upper side, bottom-shaped sealing triangles are provided on the underside. With this design, the fully unfolded and sealed beverage carton has a gable-shaped seal that is aligned parallel to the bottom-shaped seal.

[0012] Alternatively, the side wall sections can each have either gable-shaped sealing triangles on the top or bottom-shaped sealing triangles on the bottom. With this design, the fully unfolded and sealed beverage carton has a gable-shaped seal that is oriented perpendicular to the bottom-shaped seal.

[0013] In a further development of the invention, the gable wall sections have a greater height than the base wall sections. This means that the gable wall sections can be larger in area than the base wall sections, or can have a larger surface area than the base wall sections.

[0014] In a further development of the invention, the gable seal has a greater height than the bottom seal. The gable seal can have a larger surface area than the bottom seal.

[0015] In a particularly preferred configuration, the wall sections of the folded blank are multi-layered and each has an inner layer facing the interior of a ring, wherein the inner free end of the respective side wall section or side wall subsection is folded inwards such that the folded inner layer forms the end face of the free end. This ensures that liquid contents do not come into contact with the raw paper edge. Furthermore, the addition of a connecting strip to seal the raw paper edge is unnecessary. This saves raw material.

[0016] It is possible for the inner layer to be weldable. Preferably, the inner layer consists of a weldable material. Particularly preferably, the inner layer is designed as a weldable coating on a cardboard / paper substrate. The weldable coating on the inside is expediently designed as a plastic coating, in particular a polyethylene coating or a dispersion coating.

[0017] In a further development of the invention, an opening aid is incorporated or pre-assembled on at least one of the gable wall sections. The pre-assembly can take the form of, for example, a cutout, a pre-cut (e.g., a half-cut), or a perforation.

[0018] The invention further comprises a beverage carton manufactured from a folded blank according to one of claims 1 to 9, wherein the folded blank is folded and joined in such a way that the side wall sections of the folded blank form the four beverage carton side walls, the gable wall sections of the folded blank form the beverage carton gable, and the bottom wall sections of the folded blank form the beverage carton bottom, wherein the mutually associated side wall sections or the two side wall section sections are fixed to one another via a longitudinal sealing seam, and wherein a gable sealing seam is formed on the two extension sealing tabs at the gable and a bottom sealing seam is formed on the bottom sealing tabs.

[0019] In a further development of the invention, the two bottom sealing triangles are folded inwards and arranged lying on the previously formed bottom sealing seam, forming the lower edge of the beverage carton bottom. Such a bottom is also referred to as a "fin-seal bottom".

[0020] In a further development of the invention, the bottom seal seam is aligned parallel or perpendicular to the gable seal seam.

[0021] The invention further comprises a method for manufacturing a beverage carton using a folded blank according to any one of claims 1 to 9, wherein the method comprises the following steps:

[0022] - Fixing the corresponding side wall sections or the two side wall sub-sections to each other and sealing the side wall sections or side wall sub-sections in a fluid / gas-tight manner to form a cardboard ring comprising four side wall sections,

[0023] - Folding the cardboard ring and fixing the unfolded shape of the cardboard ring, - Folding the bottom wall sections around the lower fold lines and sealing the bottom wall sections fluid / gas-tight, and after filling the beverage carton over the still open gable end, folding the gable wall sections around the upper fold lines and sealing the gable wall sections fluid / gas-tight to form a beverage carton gable end.

[0024] - or

[0025] - Folding the gable wall sections around the upper fold line and sealing the gable wall sections fluid- / gas-tight to form a beverage carton gable, and after filling the upside-down beverage carton over the still open bottom, folding the bottom wall sections around the lower fold lines and sealing the bottom wall sections fluid- / gas-tight.

[0026] The beverage carton can be manufactured using a drawing mandrel or alternatively without the use of a drawing mandrel.

[0027] As mentioned previously, it is possible to perform inverted carton forming. Specifically, this type of inverted carton forming is carried out without a mandrel. This method is used to avoid a headspace that is typically filled with air or an inert gas (nitrogen). Besides improving the protection of the contents from oxygen, this also enhances the overall stability of the beverage carton. Specifically, after filling, the volume of the beverage carton is reduced by pressing with pressure plates to such an extent that all volume within the carton is filled with product and no air space can form inside the carton.

[0028] In a further development of the invention, after unfolding and fixing the cardboard ring and before folding in the bottom or gable wall sections, the inside of the cardboard ring is sterilized with a sterilizing agent. The sterilizing agent could be, for example, hydrogen peroxide.

[0029] In a further development of the invention, when folding in the bottom wall sections, the bottom closing triangles are first folded outwards, then a bottom sealing seam is formed on the bottom sealing tab, for example by means of ultrasonic welding, and subsequently the bottom closing triangles are folded inwards, where they come to lie on the bottom sealing seam and are fixed there.

[0030] Preferred embodiments of the invention are shown in the drawing and are explained in more detail below. The drawing shows:

[0031] Figure 1 first embodiment of the inventive folding blank for forming a cardboard ring for

[0032] Manufacturing a beverage carton,

[0033] Figure 2 shows a second embodiment of the inventive folding blank for forming a cardboard ring for manufacturing a beverage carton, Figure 3 shows a third embodiment of the inventive folding blank for forming a cardboard ring for manufacturing a beverage carton, Figure 4 shows a schematic representation of a beverage carton formed according to the folding blank from Figure 2.

[0034] Figure 5 shows a perspective view of a beverage carton formed from the folded cut according to Figure 1.

[0035] Figure 6 shows a schematic representation of a first embodiment of the inventive method for manufacturing a beverage carton using the folded blank of Figure 2, wherein the individual manufacturing steps are shown one after the other.

[0036] Figure 7 shows a schematic representation of a second embodiment of the inventive method for manufacturing a beverage carton using the folding blank of Figure 1, wherein the individual manufacturing steps are shown one after the other.

[0037] Figure 8 is an enlarged representation of detail X from Figure 7.

[0038] Figure 9 is an enlarged representation of detail Y from Figure 7.

[0039] Figure 10 shows a perspective view of a component of a device for manufacturing a beverage carton according to the method of Figure 6 using a drawing mandrel.

[0040] Figure 11 is a schematic representation of a device for producing beverage cartons according to the method described in Figure 7. Figures 1 to 3 show preferred embodiments of the inventive folding blank 11 for producing the inventive beverage cartons 12 shown in Figures 4 and 5. The beverage carton 12 is suitable for holding, in particular, liquid contents, for example, milk, fruit juices, and so on.

[0041] The folded blank 11 is multi-layered and has an outer layer (not shown), which is expediently designed as an outer coating. This outer coating is generally a plastic coating and protects a further inner support layer (not shown) from external influences, such as moisture. The outer coating is supported by the aforementioned support layer, which is generally a cardboard support layer. An inner layer (not shown), which is also supported by the support layer, is in contact with the contents. This inner layer is, for example, an inner coating, such as a plastic coating, in particular a polyethylene coating, or alternatively a dispersion coating.

[0042] Overall, the folded blank 11 is therefore a composite of several layers of different raw materials. Intermediate layers may also be present, in particular at least one layer that acts as a barrier against light and air (oxygen).

[0043] As shown in particular in Figure 1 according to the first embodiment of the inventive folding blank, the folding blank 11 has several wall sections connected to one another by means of fold lines. The wall sections include side wall sections 14a, 14b, 14c and 14d, which are arranged in a row in the longitudinal direction 15 of the folding blank 11 and are connected to one another by means of lateral fold lines 16.

[0044] The side wall sections 14a-d are connected at an upper top via an upper fold line 18 to a gable wall section 19a-d and at an opposite lower bottom via a lower fold line 20 to a bottom wall section 21a-d. In the example shown, the folded blank 11 therefore has two inner side wall sections 14b, 14c, which are flanked by two outer side wall sections 14a, 14d. A side wall sealing flap 22 extending in the vertical direction 17 is attached to one of the outer side wall sections 14d via a further lateral fold line 16 and, when assembled to form the cardboard ring 23, is fastened to the other outer side wall section 14a in the manner described below.

[0045] The free ends of the gable wall sections 19a-d, facing away from the side wall sections 14a-d, are each connected to a gable seal tab 25 via a seal fold line 24.

[0046] As further shown in Figure 1, two gable wall sections 19b, 19d opposite each other in the state of the unfolded cardboard ring 23 each have foldable gable closing triangles 26b, d over associated upper fold lines 18, while the other two gable wall sections 19a, 19c are free of gable closing triangles.

[0047] Furthermore, two opposite bottom wall sections 21b, 21d in the unfolded cardboard ring 23 each have foldable bottom closing triangles 27b, 27d via associated lower fold lines 20, while the other two bottom wall sections 21a, 21c are free of bottom closing triangles.

[0048] Furthermore, free ends of the bottom wall sections 21a-d, facing away from the side wall sections 14a-d, are connected to a bottom sealing tab 28 via a seal fold line 24. The bottom sealing tab consists of the bottom tab sections 29a-d assigned to the respective bottom wall sections 21a-21d. On the upper side, the gable sealing tab 25 consists of the gable tab sections 30a-d assigned to the respective gable wall sections 19a-d.

[0049] The gable closing triangles 26a-d and the base closing triangles 27a-d are each foldable via triangular folding lines 31 relative to the rest of the associated gable wall section 19a-d.

[0050] As further shown in Figure 1, the side wall sections 14b, 14d have gable closing triangles 26b, 26d on the upper side and bottom closing triangles 27b, 27d on the lower side.

[0051] An essential aspect of the invention is that on two gable wall sections 19a, 19c opposite each other in the state of the unfolded cardboard ring 23, extension sealing tabs 33a-d are formed at the free ends of the gable tab sections 30a, 30c of the gable sealing tab 25 connected to the gable sealing tab 25 via extension folding lines 32, whereas the bottom sealing tab 28 is free of extension sealing tabs.

[0052] A cardboard ring 23 is first produced from the folded blank 11. The free ends of the side wall sections 14a and 14d facing each other are placed together in such a way that the side wall sealing tab 22, which is located on one side wall section 14d, is folded over around the lateral fold line 16 and overlaps against the inside of the other outer side wall section 14a.

[0053] To ensure that the contents, especially liquids, do not come into contact with the edge of the base paper, this edge is folded. As already mentioned, the side wall sealing flap 22 also has an inner layer facing an inner ring space 34, in particular in the form of a plastic coating. The inner free end of the side wall sealing flap 22 is therefore folded outwards in such a way that the folded inner layer forms the end face. To achieve this, a paper layer, in particular several millimeters wide, is first removed along with the outer layer, which is also a plastic coating and thus a weldable layer. The resulting thin, weldable layer of the inner weldable layer is then heated and folded over. Subsequently, the folded flap is pressed under high pressure, cooled, and thus welded.The folded inner layer therefore protects the contents, especially liquids, from contact with the raw paper edge.

[0054] As already mentioned, the side wall sealing tab 22, designed in this way, comes into contact with the inside of the other outer side wall section 14a. The folded side wall sealing tab 22 is pressed under high pressure, cooled, and thereby welded. This creates a longitudinal seam 35 (Figure 5) running in the vertical direction 17 on the outside, particularly in the area of ​​the edge between the two outer side wall sections 14a, 14b. This creates an overlap weld joint, and the folded blank 11 becomes the cardboard ring 23. A characteristic of the folded blank 11 according to the first embodiment, and also of the further embodiments described below, is that the height of the side wall sections 19a-19d is greater than the height of the bottom wall sections 21a-d.The gable wall sections 19a-d are therefore larger in area than the base wall sections 21a-d, meaning that the gable wall sections 19a-d have a larger area than the base wall sections 21a-d. The same applies to the sealing lugs at the gable and at the base. The gable sealing lug 25 has a greater height and thus a larger area than the base sealing lug 28.

[0055] As further shown in Figure 1, one of the gable wall sections 19c has a pre-fabricated opening aid e 36. In the example shown, there is a circular perforation, or a pre-punched circular hole, on the relevant gable wall section 19c.

[0056] Figure 5 shows the folded blank 11 according to Figure 1 in its unfolded state, in which the side wall sections are welded to form a cardboard ring 23, and the gable and bottom are already fluid / gas-tight welded. A key aspect of the folded blank 11 according to the first embodiment is that the bottom sealing seam 37, in particular the bottom weld seam, formed on the bottom sealing tab 28, is aligned parallel to the gable sealing seam 38, in particular the gable weld seam, formed in the area of ​​the extension sealing tabs 33a, 33c.

[0057] Figure 2 shows a second embodiment of the inventive folding blank 11, which differs from the first embodiment described above by a different arrangement of the locking triangles. In contrast to the first embodiment described above, the side wall sections 14a-dj each have either gable locking triangles 26a, 26c on their upper side or bottom locking triangles 27b, 27d on their lower side. Thus, there is no side wall section with both a gable locking triangle on the upper side and a bottom locking triangle on the lower side. As in the first embodiment, the extension sealing tabs 33b, 33d are arranged on gable wall sections 19b, 19d, which do not have gable locking triangles 30a, 30c.

[0058] The folding and joining to form a cardboard ring is done in the same way as in the first embodiment described above.

[0059] However, as shown in particular in Figure 4, the bottom sealing seam 37 and the gable sealing seam 38 are oriented differently to each other than in the previously described embodiment, namely perpendicular to each other.

[0060] Figure 3 shows a third embodiment of the inventive folding cutout 11. With regard to the position of the gable locking triangles 26b, 26d and the bottom locking triangles 27b, 27d, the third embodiment corresponds to the first embodiment described above. The fundamental difference between the third embodiment and the previously described embodiments is that the side wall has a different construction.

[0061] The folded blank 11 according to the third embodiment has a central side wall section 14b, to which outer side wall sections 14a, 14c are connected via lateral fold lines 16. Side wall subsections 39a, 39b are each connected to the outer side wall sections 14a, 14b, which, when assembled to form the cardboard ring 23, combine to form a fourth side wall section 14d.

[0062] When folding and completing the folded blank 11 into a cardboard ring, the two side wall sections 39a , 39b are joined together by means of an overlap joint and connected to each other by means of a side wall sealing tab 22 formed on one of the side wall sections 39a , 39b, in particular welded together.

[0063] After the formation of the cardboard ring 23 from the folded blank 11 according to the previously described embodiments, the beverage carton 12 is produced according to the inventive method.

[0064] The second embodiment of the inventive method, whose individual process steps are shown by way of example in Figures 7 to 9, will now be described:

[0065] After its production, the resulting cardboard ring 23 can be stored in a flat transport position together with other cardboard rings 23 in an outer packaging.

[0066] The production of the beverage carton 12 uses a system such as the one shown in Figure 11. Such a system can also be referred to as a form, fill, and seal (FFS) machine 40. The first step of the process has already been carried out as described above. In this step, the corresponding side wall sections 14a, 14d or the two facing side wall sections 39a, 39b are fixed together and sealed fluid-tight, in particular by means of a longitudinal overlap weld using hot air, forming a carton ring 23 with four rectangular side wall sections 14a-d.

[0067] In the FFV machine 40, the flat cardboard rings 23 are unpacked from the outer cartons and a cardboard magazine 41 is filled with them.

[0068] The cardboard rings 23 stored in the cardboard magazine are taken from the cardboard magazine 41 (step 7a) ).

[0069] A removed cardboard ring 23 is unfolded and the unfolded shape of the cardboard ring 23 is fixed in place. A square cardboard holder 42 serves for this purpose.

[0070] The cardboard holder 42 has two brackets 43a, 43b diametrically opposed to each other with respect to a longitudinal axis of the cardboard holder 42, each having equal-length bracket legs 44 oriented at right angles to each other. The two brackets 43a, 43b are relatively movable in the diagonal direction relative to each other, so that different sized square openings 45 can be formed depending on the position of the two brackets 43a, 43b.

[0071] The unfolded cardboard ring 23 is inserted into the cardboard holder 42 after the correct opening cross-section of the cardboard holder 42 has been set (step 7b). The unfolded shape of the cardboard ring 23 is fixed solely from the outside by the cardboard holder 34. A draw mandrel is not necessary here. The process steps shown as an example in Figure 7 refer to an inverted cardboard forming process. This cardboard forming process has the advantage that a headspace, which is otherwise typically filled with air or an inert gas, such as nitrogen, is avoided.

[0072] In the next process step, for example, process step c) shown in Figure 7, the opening aid e 36, which may be, for example, a screw cap, is attached to a sealing station 46 of the FFV machine 40, either from the inside or from the outside, by means of ultrasonic welding. In a further step (not shown), the gable and the base are pre-folded by means of folding wings.

[0073] In the next process step, which is shown by way of example in Figure 7 as process step d), sterilization or disinfection takes place in a sterilization station 47 of the FFV machine 40. In this process, the cardboard ring 23, which is open on both sides, is sterilized, in particular by passing a sterilizing agent, for example in the form of hydrogen peroxide, through the interior, i.e., through the inner space 34 of the cardboard ring.

[0074] Next, the gable forming the lower end of the cardboard ring 23 is formed. The gable wall sections 19a-19d are folded around the upper fold lines 18, with the gable closing triangles 26a, c being folded inwards. The two extension sealing tabs 33b, 33d on the opposing side wall sections 14b, 14d are positioned opposite each other, creating a gable seal 38 by means of hot air, ultrasonic, or inductive sealing or welding. During the formation of the gable, a square orientation of the cardboard ring 23 is achieved using forming fingers 48 (Figure 9), thus enabling the formation of a geometrically correct gable in the manner described above (steps e) and el).

[0075] In the next step, exemplified by step f) from Figure 7, the beverage carton 12, which is closed on the underside by the gable formed, is filled.

[0076] In the next step, exemplified in Figure 7 by step g), the now filled beverage carton is reduced in volume using pressure plates (not shown) until all volume within the beverage carton 12 is filled with product and no air space remains. Once the correct fill level is reached, the bottom of the beverage carton is formed. The bottom wall sections 21a-21d are folded around the lower fold line 20. During this folding process, the bottom closing triangles 21b, 21d are first folded outwards, and a bottom seal 37 is then formed at the bottom sealing flap. The bottom closing triangles 21b, 21d are then folded inwards, where they lie on the previously formed bottom seal 37 and are secured there. A floor shaped in this way is also called a "fin seal floor".

[0077] Finally, the beverage carton 12 is ejected from the FFV machine 40 and rotated 180 degrees so that it can be transported to the redesigned stations on conveyor belts.

[0078] The first embodiment of the inventive manufacturing process described below differs from the previously described manufacturing processes in that a so-called drawing mandrel 50 is used. The manufacturing process also takes place on an FFV machine, which, however, is designed differently from the FFV machine 40 shown in Figure 11, since the latter is designed for the production of the beverage carton 12 without a drawing mandrel.

[0079] First, the folded blanks 11, which can be designed according to one of the previously described embodiments, are unpacked from the outer packaging and placed in the carton magazine of the FFV machine. The folded blanks are then removed from the carton magazine according to step a of Figure 8. According to step b, the folded carton is pushed onto a drawing mandrel 50, which is shown by way of example in Figure 10. Diametrically opposed guide rails 51a, b take over the function of the previously described carton holder 42. In contrast to the previously described manufacturing process, production according to the first embodiment takes place in a normal standing position, i.e., with the gable facing upwards.

[0080] The size of the drawing mandrel 50 is adjusted via the length of the folded blank 11. Next, step c) of Figure 8 shows, by way of example, the bottom is pre-folded by folding the bottom wall sections 21a-d around the lower fold lines 20. In doing so, the bottom closing triangles 27b, 27d are again folded outwards so that a bottom sealing seam 37 is subsequently formed on the bottom sealing tab 28, in particular by butt welding using hot air, ultrasonic or induction welding at the designated welding surfaces f, making it liquid- and airtight. This is followed by a forming tool that was inserted into the cardboard ring 23 in step b). After a load-bearing and liquid- and airtight sealed base has been formed, the next step is to attach an opening aid e 37, for example in the form of a screw cap, for example by ultrasonic welding into the pre-cut cardboard from the inside.Sterilization using sterilizing agents, for example hydrogen peroxide, can take place after the production of the sealed floor.

[0081] Finally, the gable end of the beverage carton 12 is formed by folding in the gable wall sections 26a-d, with the gable closing triangles 26a, 26c being folded inwards. A gable sealing seam 38 is then formed in the area of ​​the opposing extension sealing flaps 33b, 33d, for example by a butt welding process using hot air, ultrasound or induction.

Claims

Claims 1. Folding blank for forming a cardboard ring (23) of a beverage carton (12), comprising several wall sections connected to one another by means of fold lines, of which several side wall sections (14a-d) are arranged in a longitudinal direction (15) of the folding blank (11) via a lateral fold line (16), which are each connected in a vertical direction (17) perpendicular to the longitudinal axis (15) of the folding blank (11) at a top via an upper fold line (18) to a gable wall section (19a-d) and at an opposite bottom via a lower fold line (20) to a bottom wall section (21a-d), wherein of the side wall sections (14a-c) a middle side wall section (14b) is flanked by two outer side wall sections (14a, 14c), wherein side wall subsections are attached to the outer side wall sections (14a, 14c). (39a, 39b) connect,which, in a state assembled to form a cardboard ring (23), complement each other to form a fourth side wall section (14d), or wherein four side wall sections (14a-d) are provided, of which at least one outer side wall section (14d) has a side wall sealing tab (22) extending in the vertical direction (17) arranged via a lateral fold line (18), which, in a state assembled to form a cardboard ring (23), is attached to the other outer side wall section (14a), and wherein free ends of the gable wall sections (19a-d) facing away from the side wall sections (14a-d) are each connected via a sealing fold line (24) to a gable sealing tab (25), and free ends facing away from the side wall sections (14a-d), The ends of the bottom wall sections (21a-d) facing away from each other are connected to a bottom sealing tab (28) via a sealing fold line (24), characterized in that, on two gable wall sections (14a-d) opposite each other in the state of the unfolded cardboard ring (23), extension sealing tabs (33a-d) connected to the gable sealing tab (25) via extension fold lines (32) are formed at the free end of the sections of the gable sealing tab (25) present there, whereas the bottom sealing tab (28) is free of extension sealing tabs (33a-d).

2. Folding blank according to claim 1, characterized in that two gable wall sections (19a, 19c ; 19b, 19d) opposite each other in the state of the unfolded cardboard ring (23) each have foldable gable closing triangles (26a, 26c; 26b, 26d) via associated upper folding lines (18), while the other two gable wall sections (19a, 19c ; 19b, 19d) are free of gable closing triangles (26a, 26c; 26b, 26d).

3. Folded blank according to claim 1 or 2, characterized in that two bottom wall sections (21a, 21c; 21b, 21d) opposite each other in the state of the unfolded cardboard ring (23) each have foldable bottom closing triangles (27a, 27c; 27b, 27d) via associated lower fold lines (20), while the other two bottom wall sections (21a, 21c; 21b, 21d) are free of bottom closing triangles (27a, 27c; 27b, 27d).

4. Folding cut according to one of the preceding claims, characterized in that on the side wall sections (14a-d) on which gable closing triangles (26a, 26c ; 26b, 26d) are formed on the underside bottom closing triangles (27a, 27c; 27b, 27d).

5. Folding cut according to one of claims 1 to 3, characterized in that the side wall sections (14a-d) each have either gable closing triangles (26a, 26c; 26b, 26d) on the upper side or bottom closing triangles (27a, 27c; 27b, 27d) on the lower side.

6. Folding cut according to one of the preceding claims, characterized in that the gable wall sections (19a-d) have a greater height than the bottom wall sections (21a-d).

7. Folding cut according to one of the preceding claims, characterized in that the gable sealing tab (25) has a greater height than the bottom sealing tab (28).

8. Folding cut according to one of the preceding claims, characterized in that the wall sections of the folding cut (11) are formed in multiple layers and each has an inner layer assigned to an inner ring space (34), wherein the inner free end of the respective side wall section (14a-d) or side wall part section (39a, b) is folded outwards in such a way that the folded inner layer forms the end face of the free end.

9. Folding cut according to one of the preceding claims, characterized in that an opening aid e (36) is formed on at least one of the gable wall sections (19a-d) or an opening aid e (36) is pre-assembled, wherein the Pre-assembly, for example in the form of a die-cut, a pre-cut or a perforation.

10. Beverage carton, manufactured from a folded blank (11) according to any one of claims 1 to 9, wherein the folded blank (11) is folded and joined such that the side wall sections (14a-d) of the folded blank (11) form the four beverage carton side walls, the gable wall sections (19a-d) of the folded blank (11) form the beverage carton gable, and the bottom wall sections (21a-d) of the folded blank (11) form the beverage carton bottom, wherein the corresponding side wall sections (14a-d) or the two side wall subsections (39a, b) are fixed to one another via a longitudinal sealing seam (35), and wherein a gable sealing seam (38) is formed on the two extension sealing flaps (33a-d) at the gable and a bottom sealing seam (37) is formed on the bottom sealing flap (28). is trained.

11. Beverage carton according to claim 10, characterized in that the two bottom closing triangles (21a, 21c; 21b, 21d) are folded inwards and arranged lying on the previously formed bottom sealing seam (37) and form the lower end of the beverage carton bottom.

12. Beverage carton according to claim 10 or 11, characterized in that the bottom sealing seam (37) is aligned parallel or perpendicular to the gable sealing seam (38).

13. Method for producing a beverage carton (12) using a folding blank (11) according to one of the preceding claims, the method comprising the following steps: - Fixing the corresponding side wall sections (14a-d) or the two side wall sub-sections (39a, b) sealing the side wall sections (14a-d) or side wall subsections (39a, b) together and in a fluid- / gas-tight manner to form a cardboard ring (23) having four side wall sections (14a-d) , - Folding the cardboard ring (23) and fixing the unfolded shape of the cardboard ring (23) , - Folding the bottom wall sections (21a-d) around the lower fold lines (20) and sealing the bottom wall sections (21a-d) in a fluid- and gas-tight manner, and after filling the beverage carton (12) over the still open gable, folding the gable wall sections (19a-d) around the upper fold lines (18) and sealing the gable wall sections (19a-d) in a fluid- and gas-tight manner to form a beverage carton gable , - or - Folding the gable wall sections (19a-d) around the upper fold lines (18) and sealing the gable wall sections (19a-d) fluid- and gas-tight to form a beverage carton gable, and after filling the upside-down beverage carton (12) over the still open bottom, folding the bottom wall sections (21a-d) around the lower fold lines (20) and sealing the bottom wall sections (21a-d) fluid- and gas-tight.

14. Method according to claim 13, characterized in that after unfolding and fixing the cardboard ring (23) and before folding in the bottom or gable wall sections (21a-d; 19a-d) an inner side of the cardboard ring (23) is sterilized with sterilizing agents, preferably using hydrogen peroxide as the sterilizing agent.

15. Method according to claim 13 or 14, characterized in that when folding in the bottom wall sections (21a-d) the bottom closing triangles (21a, 21c; 21b, 21d) are first folded outwards, then a bottom sealing seam (37) is formed on the bottom sealing tab (28) and subsequently the bottom closing triangles (21a, 21c; 21b, 21d) are folded inwards, come to rest on the bottom sealing seam (37) and are fixed there.

16. Method according to one of claims 13 to 15, characterized in that after filling the volume of the beverage carton (12) is reduced by pressing using pressing means.

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