Sleeve-shaped outer part, combination packaging container equipped therewith, and method for separating the combination packaging container

Description

[0001] The invention relates to a combination packaging container formed from an inner container and an outer part. However, the invention also relates to a method for producing the combination packaging container, as well as a method for separating the combination packaging container into its inner container and outer part by separating the overlapping area of ​​the outer part.

[0002] WO 2020 / 245148 A1 by the same applicant describes a sleeve-shaped outer part formed from a blank, wherein the blank is wound into a jacket, the end sections of which are connected to one another in an overlapping region. A predetermined separation region comprises an actuating means with a detection section for separating separating sections located on both sides. The detection section is arranged laterally offset from the converging separating sections and an imaginary straight connecting line between them, viewed in the circumferential direction. A separate predetermined separation section is formed in the jacket of the outer part between each detection section end and a respective end of the separating sections. The lower end of the outer part facing the closed end of the inner container is supported on a support shoulder projecting radially outward.This ensures, within certain limits, a positive, mutual retention between the outer part and the inner container. In the event of tolerance-related manufacturing inaccuracies, temperature changes, and / or moisture absorption by the blank, which is preferably made of a cellulose material, this can lead to unintentional detachment of the outer part from the inner container.

[0003] Further packaging containers are known from EP 1 634 811 A1, US 2009 / 214887 A1, US 2008 / 105582 A1, WO 2014 / 098888 A1, US 8 185 578 A, JP H02 153974 A, US 8 387 857 B2 and US 2012 / 205430 A1.

[0004] The object of the present invention was to overcome the disadvantages of the prior art and to provide a combination packaging container comprising a cup-shaped inner container with a sleeve-shaped outer part surrounding it, in which the sleeve-shaped outer part can be easily removed from the inner container for recycling purposes.

[0005] According to the invention, a blank for an outer part for encasing a cup-shaped inner container is provided, wherein the inner container has a container shell which has an open end and an end closed by a bottom, wherein the blank has a first end section and a second end section, wherein an adhesive layer made of an adhesive is arranged on the first end section and / or on the second end section, wherein the blank can be wound into a sheath and the first end section and the second end section can be coupled to one another in an overlapping region by means of the adhesive layer of the adhesive, wherein the blank further has a first end side and a second end side and the two end sides are spaced apart from one another.

[0006] The adhesive layer is designed such that the first end section and the second end section can be detached from each other again in the overlapping area from the coupled state.

[0007] The blank according to the invention has the surprising advantage that a removable adhesive layer can be used to ensure that a combination packaging container wrapped with the blank can be separated more easily.

[0008] In a first embodiment, the blank may be formed as a single piece. Furthermore, it is also conceivable for the blank itself to be formed from multiple parts, whereby the individual parts of the blank may also be adhered to one another by means of an adhesive layer.

[0009] Furthermore, it can be expedient if the blank has a multi-layer composite structure, wherein a carrier layer, in particular made of a cellulose material, is formed and wherein a printing layer is arranged at least in sections on the carrier layer and wherein a sealing layer is formed at least in sections, wherein the printing layer is arranged at least in sections between the carrier layer and the sealing layer, wherein the adhesive layer is arranged on the sealing layer. This has the advantage that the printing layer can be used to impart a desired design to the blank or subsequently to a combination packaging container wrapped with the blank. The sealing layer can protect the printing layer or the carrier layer from environmental influences.The multi-layer composite structure also offers the surprising advantage that the first end section and the second end section in the overlapping area can be separated particularly well in a cut applied to the combination packaging container, whereby the separability of the combination packaging container can be improved.

[0010] Furthermore, it can be provided that the carrier layer has a tensile strength between 2N / mm 2< and 20N / mm 2< , in particular between 5N / mm 2< and 15N / mm 2< , preferably between 8N / mm 2< and 12N / mm 2<.

[0011] Additional layers may be present between the individual layers or in addition to the individual layers.

[0012] Furthermore, it is also conceivable that the sealing layer is partially removed or interrupted in the area of ​​the adhesive layer so that the adhesive layer can bond directly to one of the layers below the sealing layer.

[0013] In particular, it can be provided that the sealing layer forms the outer surface of the blank or outer part. This has the advantage that this measure protects the outer part from environmental influences. In addition, this measure can surprisingly achieve particularly good separability of a combination packaging container wrapped with the blank.

[0014] Furthermore, it can be provided that the sealing layer is formed from a heat-resistant lacquer. The heat resistance can be up to a maximum temperature between 160°C and 300°C. In particular, it can be provided that a lacquer is selected that can be exposed to a temperature of 180°C to 200°C for a period of 15 to 20 minutes without destroying the lacquer film. This has the advantage that this measure can create a sealing layer to which a hot-melt adhesive can be applied without the hot-melt adhesive melting the sealing layer. This can improve the releasability of the adhesive layer.

[0015] In particular, it can be provided that the adhesive layer can be removed from the sealing layer without leaving any residue and without being destroyed.

[0016] In particular, the varnish can be water-based. Furthermore, the varnish can be transferred to a varnish plate in a printing press via a chamber doctor blade system—a pressurized chamber—via an anilox roller. The varnish can be applied at a specific grammage of 0.5g / cm2 to 1.5g / cm2, in particular 0.8g / cm2 to 1.2g / cm2, preferably 0.95g / cm2 to 1.05g / cm2.

[0017] Furthermore, it can be provided that in the region of the first end section, the printing layer is recessed in the area of ​​the adhesive layer, in particular that the sealing layer is arranged directly on the carrier layer in this area. This offers the surprising advantage that this measure makes it easier to separate the adhesive layer from the first end section of the blank, thereby improving the separability of the combination packaging container.

[0018] In particular, it can be provided that the extent of the recess of the printing layer is smaller than the extension of the overlapping area. This can ensure that the visible surface of the outer part of the combination packaging container can have an optical representation on its entire outer surface.

[0019] In particular, it can be provided that the pressure recess has a recess depth and the overlap has an overlap depth, wherein the recess depth is smaller than the overlap depth.

[0020] According to the invention, an outer part is designed to enclose a cup-shaped inner container, wherein the inner container has a container shell which has an open end and an end closed by a base, wherein the outer part is formed from a blank, which blank has a first end section and a second end section, wherein the blank is wound into a shell and the first end section and the second end section are coupled to one another in an overlapping region by means of an adhesive layer made of an adhesive, wherein the outer part further has a first end side and a second end side and the two end sides are spaced apart from one another. The adhesive layer is designed such that the first end section and the second end section can be detached from one another in the overlapping region.

[0021] The outer part according to the invention has the surprising advantage that a detachable adhesive layer can be used to ensure that a combination packaging container wrapped with the outer part can be separated more easily.

[0022] In a first embodiment, the outer part may be formed as a single piece. Furthermore, it is also conceivable for the outer part to be formed from multiple parts, whereby the individual parts of the outer part can also be adhered to one another by means of an adhesive layer.

[0023] According to the invention, a combination packaging container is provided. The combination packaging container comprises: a cup-shaped inner container, the inner container having a container shell having an open end and a bottom-closed end; an outer part which encloses the inner container, wherein the outer part is formed from a blank, which blank has a first end section and a second end section, wherein the blank is wound into a casing and the first end section and the second end section are coupled to one another in an overlapping region by means of an adhesive layer made of an adhesive, wherein the outer part further has a first end face and a second end face and the two end faces are spaced apart from one another, wherein the first end face faces the base and the second end face faces the open end of the inner container. The adhesive layer is designed such that the first end section and the second end section can be detached from one another in the overlapping region.

[0024] The combination packaging container according to the invention offers the surprising advantage that a detachable adhesive layer allows for improved separation of the inner container wrapped with the outer part during disposal. In particular, the measures according to the invention can achieve automated separation of the outer part from the inner container if the combination packaging container is excessively deformed when empty, as is the case, for example, during waste transport. This results in complete separation of the outer part from the inner container. Thus, the recyclability of the combination packaging container can be achieved even if the end user does not intentionally separate the outer part from the inner container in order to dispose of them separately.The inventive construction of the combination packaging container makes it possible to prevent unwanted detachment of the outer part from the inner container when the combination packaging container is filled and to improve separability in the event of disposal.

[0025] According to a further development, it is possible for the adhesive to be a hot-melt adhesive. This offers the advantage that a hot-melt adhesive can be easily applied to the blank or outer part during the manufacturing process and, moreover, exhibits surprisingly good releasability.

[0026] In an alternative embodiment, it is conceivable that the adhesive is a pressure-sensitive adhesive.

[0027] Furthermore, it can be expedient if the adhesive layer in the first end section rests against an outer surface and the adhesive layer in the second end section rests against an inner surface, wherein the first end section has a first tensile strength in the region of the outer surface against which the adhesive layer rests and the second end section has a second tensile strength in the region of the inner surface against which the adhesive layer rests, and that the adhesive has a peel strength, wherein the peel strength of the adhesive is lower than the first tensile strength of the outer surface of the first end section. Furthermore, it can be provided that the peel strength of the adhesive is higher than the second tensile strength of the inner surface of the second end section. This has the surprising advantage that the separability of the two end sections can be improved by this measure.In particular, this measure allows the adhesive layer to be completely removed from the outer surface of the first end section during separation.

[0028] Furthermore, it can be provided that the first end section has a first tensile strength in the region of a first surface against which the adhesive layer rests, and the second end section has a second tensile strength in the region of a second surface against which the adhesive layer rests, and that the adhesive has a peel strength, wherein the peel strength of the adhesive is lower than the first tensile strength of the first surface and / or wherein the peel strength of the adhesive is lower than the second tensile strength of the second surface. This brings with it the surprising advantage that this measure can improve the separability of the two end sections.

[0029] Furthermore, the adhesive can be provided with a peel strength and a shear strength, with the adhesive being selected such that the shear strength is greater than the peel strength. This offers the surprising advantage that this measure can prevent unwanted separation of the two end sections and, at the same time, achieve the desired separation of the two end sections during disposal.

[0030] Furthermore, it can be provided that the adhesive, when adhering to the sealing layer, has a shear strength of between 0.04 N / mm 2 and 2 N / mm 2 , in particular between 0.09 N / mm 2 and 1 N / mm 2 , preferably between 0.12 N / mm 2 and 0.5 N / mm 2 . This has the surprising advantage that this measure can prevent an undesired separation of the two end sections and, at the same time, a desired separation of the two end sections can be achieved in the event of disposal.

[0031] According to a particular embodiment, it is possible for the adhesive, when adhering to the sealing layer, to have a peel strength of between 0.0005 N / mm 2 and 1 N / mm 2 , in particular between 0.001 N / mm 2 and 0.01 N / mm 2 , preferably between 0.003 N / mm 2 and 0.007 N / mm 2 . This has the surprising advantage that this measure can prevent an undesired separation of the two end sections and, at the same time, a desired separation of the two end sections can be achieved in the event of disposal.

[0032] According to an advantageous further development, it can be provided that the adhesive has a tensile strength between 0.1 N / mm 2 and 60 N / mm 2 , in particular between 1 N / mm 2 and 30 N / mm 2 , preferably between 10 N / mm 2 and 20 N / mm 2 . This has the surprising advantage that this measure can prevent an undesired separation of the two end sections and, at the same time, a desired separation of the two end sections can be achieved in the event of disposal.

[0033] The strength values ​​can be determined using the standard "DIN EN 1465 Adhesives - Determination of the tensile shear strength of high-strength overlap bonds", whereby the material pairing present on the product is used to determine the strength values.

[0034] In particular, it may be advantageous if the adhesive has a peel strength, a shear strength, and a tensile strength, with the adhesive being selected such that the tensile strength is greater than the shear strength and the tensile strength is greater than the peel strength. This offers the surprising advantage that this measure can prevent unwanted separation of the two end sections in a filled combination packaging container and, at the same time, can achieve a desired separation of the two end sections during disposal.

[0035] Furthermore, it can be provided that a first longitudinal edge is formed on the first end section, which has a first longitudinal edge length, wherein the adhesive layer has an elongated extension and is arranged parallel to the longitudinal edge. This has the advantage that the outer part can be bonded uniformly over its entire vertical extent and thus has a homogeneous shape. This surprisingly allows for an improved hold of the outer part on the inner container in the state of use and, moreover, an improved separability of the outer part from the inner container in the event of disposal.

[0036] Furthermore, it can be provided that the length of the adhesive layer is between 100% and 80%, in particular between 99% and 85%, preferably between 97% and 93% of the first longitudinal edge length. This has the advantage that the outer part can be uniformly closed over its entire vertical extent and thus has a homogeneous shape. This surprisingly makes it possible to achieve improved retention of the outer part on the inner container in the state in which it is used and, moreover, to achieve improved separability of the outer part from the inner container in the event of disposal. In particular, it can be provided that the adhesive layer is strip-shaped. In an alternative embodiment, it can also be provided that the adhesive layer is applied at intervals running parallel to the longitudinal edge, for example in the form of adhesive layer dots between the first end section and the second end section.

[0037] Also advantageous is an embodiment according to which it can be provided that the width of the adhesive layer is between 1 mm and 10 mm, in particular between 1.5 mm and 7 mm, preferably between 2.5 mm and 3.5 mm. This has the advantage that the outer part can be uniformly closed over its entire height and thus has a homogeneous shape. This surprisingly makes it possible to achieve an improved hold of the outer part on the inner container in the state in which it is used, and moreover, an improved separability of the outer part from the inner container in the event of disposal. In particular, it can be provided that the adhesive layer is strip-shaped.In an alternative embodiment, it can also be provided that the adhesive layer is applied in intervals parallel to the longitudinal edge, for example in the form of adhesive layer points between the first end section and the second end section.

[0038] According to a further development, it is possible for the adhesive layer to be arranged at a distance of between 1 mm and 10 mm, in particular between 1.5 mm and 7 mm, preferably between 2.5 mm and 3.5 mm, from the second longitudinal edge. This has the advantage that the outer part can be uniformly closed over its entire vertical extent and has no loose, protruding areas, which would lead to an undesired separation of the outer part during handling of the combination packaging container. This surprisingly allows for an improved hold of the outer part on the inner container in the intended use state and, moreover, an improved separability of the outer part from the inner container in the event of disposal.

[0039] In particular, it can be provided that the adhesive layer is strip-shaped. In an alternative embodiment, it can also be provided that the adhesive layer is applied in intervals, running parallel to the longitudinal edge, for example in the form of adhesive layer dots between the first end section and the second end section.

[0040] Furthermore, it may be expedient if at least one intended separation area is formed in the blank of the outer part, wherein the intended separation area is formed in the form of a perforation in the blank of the outer part, wherein the intended separation area is arranged at a distance from the adhesive layer. This has the advantage that the outer part can optionally also be separated from the inner container by cutting in the intended separation area. According to studies conducted, the presence of the perforation encourages the end consumer to actively separate the outer part of the combination packaging container from the inner container and dispose of them separately.

[0041] Furthermore, the inner container can be provided with a radially outwardly projecting shoulder in the area of ​​the closed end, which serves as an axial stop for the first end face of the outer part. This has the advantage that this measure can prevent the outer part from slipping off the inner container in the axial direction. This prevents unwanted separation of the outer part from the inner container prior to disposal.

[0042] Furthermore, the shoulder can be designed to taper conically, at least in sections, from the open end to the closed end. This measure can improve the axial sliding of the outer part onto the inner container during the manufacture of the combination packaging container.

[0043] According to a special embodiment, it is possible for the container shell of the inner container to be tapered, at least in sections, from the open end to the closed end. This has the advantage that these measures can improve the stackability of several of the combination packaging containers.

[0044] Method for producing a combination packaging container, comprising the method steps: providing a cup-shaped inner container, the inner container having a container shell having an open end and a bottom-closed end; forming an outer part for enclosing the inner container, wherein the outer part is formed from a blank, which blank has a first end portion and a second end portion, wherein the blank is wound into a sheath and the first end portion and the second end portion are coupled to one another in an overlapping region by means of an adhesive layer made of an adhesive, wherein the outer part further has a first end face and a second end face and the two end faces are spaced apart from one another, Axial sliding of the outer part onto the inner container, with the first end facing the bottom and the second end facing the open end of the inner container, or forming the outer part directly by wrapping it around the inner container. The adhesive layer is designed such that the first end section and the second end section can be separated from one another in the overlapping area.

[0045] In a first embodiment variant, it can be provided that the shaping of the outer part and the bonding of the first end section and the second end section in an overlapping area by means of an adhesive layer takes place in a separate process step, and the thus shaped outer part is only pushed onto the inner container in a further process step by axial displacement.

[0046] In an alternative embodiment, it is also conceivable for the outer part to be wound or formed directly onto the inner container. In this case, the inner container can be mounted on a winding mandrel.

[0047] The method according to the invention offers the surprising advantage that a detachable adhesive layer can be used to improve separation of the inner container wrapped with the outer part during disposal. In particular, the measures according to the invention can achieve automated separation of the outer part from the inner container if the combination packaging container is excessively deformed when empty, as is the case, for example, during waste transport. This results in complete separation of the outer part from the inner container. Thus, the recyclability of the combination packaging container can be achieved even if the end user does not intentionally separate the outer part from the inner container in order to dispose of them separately.The inventive construction of the combination packaging container makes it possible to prevent unwanted detachment of the outer part from the inner container when the combination packaging container is filled and to improve separability in the event of disposal.

[0048] In particular, it may be advantageous to use a hot-melt adhesive to apply the adhesive layer to the blank, which is applied to an outer surface of the blank in the region of the first end section before the outer part is formed. Such a hot-melt adhesive can be applied to the blank more easily and also provides improved separability.

[0049] In an alternative embodiment, it can also be provided that the adhesive layer is applied to the blank before the outer part is formed in the region of the second end section on an inner surface of the blank.

[0050] Furthermore, it can be provided that the hot-melt adhesive is initially in granular form and is melted by heating, in particular to a temperature between 130°C and 160°C, and then pressed through a nozzle for application to the outer surface of the blank. This has the advantage that this measure can achieve a sufficient bond between the hot-melt adhesive and the blank.

[0051] According to the invention, a method is provided for separating a combination packaging container with a cup-shaped inner container, wherein the inner container has a container shell which has an open end and an end closed by a base, and an outer part which surrounds the inner container, wherein the outer part is formed from a blank, which blank has a first end section and a second end section, wherein the blank is wound into a shell and the first end section and the second end section are coupled to one another in an overlapping region by means of an adhesive layer made of an adhesive, wherein the outer part further has a first end side and a second end side and the two end sides are spaced apart from one another, wherein the first end side faces the base and the second end side faces the open end of the inner container.To separate the outer part from the inner container, the first end section of the outer part and the second end section of the outer part are separated from each other in the overlap area at the adhesive layer.

[0052] This has the advantage that the recyclability of the combination packaging container can be achieved even if the end user does not consciously separate the outer part from the inner container in order to dispose of them separately.

[0053] In particular, it can be provided that the method of separating the combination packaging container is carried out when the combination packaging container is empty.

[0054] Also advantageous is a configuration according to which it can be provided that, when the first end section of the outer part and the second end section of the outer part are separated from each other, the adhesive layer is detached from the first end section without damaging the first end section and the adhesive layer remains on the second end section, or the adhesive layer is detached from the second end section without damaging the second end section and the adhesive layer remains on the first end section. This results in improved separability of the outer part from the inner container.

[0055] According to a further development, in order to separate the outer part from the inner container, the first end section of the outer part and the second end section of the outer part are separated from one another in the overlapping area at the adhesive layer by applying a compressive force (-F-) directed towards the combination packaging container, thereby spatially deforming the outer part and the container shell of the combination packaging container. The spatial deformation of the outer part and the container shell in the area of ​​the adhesive layer introduces a separating force which leads to the adhesive layer being separated from the first end section or the adhesive layer being separated from the second end section. Thus, the combination packaging container can be separated, for example, by the ambient conditions during waste removal.Particularly during transport in a garbage truck, large forces and thus large deformations act on the combination packaging container, which can cause the outer part to separate from the inner container.

[0056] Furthermore, it may be expedient if the spatial deformation of the outer part includes an axial deformation greater than 1.5 cm from an undeformed use state and / or a radial deformation greater than 2 cm from an undeformed use state. This allows the combination packaging container to be separated, for example, by the ambient conditions during waste removal. Particularly during transport in a garbage truck, large forces and thus large deformations act on the combination packaging container, which can cause the outer part to separate from the inner container.

[0057] Furthermore, a sleeve-shaped outer part can be provided, which serves to enclose a cup-shaped inner container to form a combination packaging container, wherein the inner container has a container shell which is designed to taper in particular conically from an open end to an end closed by a base, wherein the outer part is formed from a blank, which blank, in its erected state, is wound into a shell, and a first end section and a second end section of the shell facing the first end section are connected to one another in an overlapping region, wherein the outer part further has a first end face and a second end face, and the two end faces are spaced apart from one another and, in the erected state, define an overall height of the shell with a longitudinal axis extending in the direction of the overall height, wherein the first end face defines a support region at least in sections, and furthermore, the first end face can be turned towards the base and the second end face can be turned towards the open end of the inner container,and wherein furthermore an additional support device is provided, which additional support device is arranged or formed in the region of the first end face of the outer part formed from the blank, and the additional support device defines a clear inner dimension which is smaller than an inner dimension of the outer part in its undeformed form in the region of the first end face. ,

[0058] The advantage achieved thereby is that the support area or support section on the shoulder of the inner container, already defined by the first end face, is further improved by the provision or formation of the additional support device. In the undeformed form of the bottom-side end region of the blank or of the outer part formed therefrom, the additional support device reduces the clear inner dimension compared to the undeformed form, thus achieving an even better locking effect on the inner container. In this way, tolerance-related manufacturing inaccuracies do not lead to any further disadvantages in the fixed positioning of the outer part on the inner container, and this even without the adhesive point otherwise usually applied for securing purposes between the container shell and the outer part. This creates an outer part that can also be more easily detached from the inner container for disposal.

[0059] In an advantageous embodiment, the additional support device can comprise at least one support element, and the at least one support element defines the clear inner dimension. The at least one support element forms the additional support device and protrudes from the undeformed bottom-side edge region or edge section of the outer part in the direction of the longitudinal axis and forms the reduction of the clear inner dimension.

[0060] Furthermore, it may be advantageous if the at least one support element is formed into the material of the blank, starting from an outer surface of the outer part toward an inner surface, and protrudes radially beyond the undeformed inner surface toward the longitudinal axis. This allows the material to be used directly to form the at least one support element, thus eliminating the need for additional components or parts. This also eliminates the need for additional material that would otherwise require separate treatment during separation and disposal.

[0061] Another embodiment is characterized in that the at least one support element has a longitudinal extension extending from the first end face toward the second end face. This allows a defined projection of the at least one support element beyond the inner surface of the blank or outer part to be realized, which forms the enlargement or widening of the base-side support area.

[0062] Another possible embodiment has the features that multiple support elements are provided, and the support elements are arranged spaced apart from one another in the circumferential direction along the first end face. This allows for an even better support effect across the circumference, even under changing ambient conditions and / or during handling.

[0063] A further embodiment provides that the additional support device comprises at least one forming section, which is formed into the material of the blank from an inner surface of the outer part toward an outer surface, and which is arranged at a distance from the first end face. This subsequently allows the edge section to be aligned in the opposite direction.

[0064] Another embodiment is characterized in that the at least one forming section, viewed in axial section, has a preferably curved longitudinal profile, and an end section adjoining the forming section in the direction of the first end face is oriented so as to extend at an angle toward the longitudinal axis. This allows for additional stiffening of the bottom-side end section or the peripheral edge region.

[0065] A further preferred embodiment is characterized in that the at least one forming section has a parallel longitudinal extension with respect to the first end face. This allows for a uniform design of the additional support device projecting toward the inner container.

[0066] Furthermore, it may be advantageous if the forming section is arranged so as to extend continuously along the first end face in the circumferential direction. This allows a secure and uniform supporting effect to be achieved over the entire circumference, particularly in the case of inner containers with a round cross-sectional shape.

[0067] Another alternative embodiment is characterized by the provision of multiple forming sections, which are arranged circumferentially spaced apart from one another along the first end face. This variant can be used particularly for inner containers that have rectilinear container walls viewed in cross-section and each have a rounded corner region in the transition areas located therebetween. This prevents unwanted wrinkling in the transition areas.

[0068] A further embodiment provides for an adhesive to be provided in the overlapping area between the two end sections, which adhesive has a first adhesive force value viewed in the circumferential direction and a second adhesive force value viewed in the radial direction, wherein the first adhesive force value is greater than the second adhesive force value. Due to the mutually different adhesive force values ​​of the adhesive holding the blank together at its mutually facing end sections, on the one hand the cohesion can be made greater viewed in the circumferential direction and, on the other hand, if the force is applied differently, an easier separation effect with a correspondingly reduced adhesive force can be enabled. This facilitates the separation process of the overlapping area when separating the outer part from the inner container.If a compressive force is applied to the inner container, this can easily cause the two connected end sections to separate. This allows for a simple separation of the outer part from the inner container during disposal.

[0069] Another embodiment is characterized in that at least one predetermined separation area is formed or provided in the casing of the outer part. By providing a separate

[0070] The intended separation area in the outer shell also creates another option for separating the outer part from the inner container. This allows the user or consumer of the combination packaging container to separate the contents in a directed manner after consumption, thus ensuring proper material separation in the usual way.

[0071] A further design provides for the sleeve-shaped outer part to be axially supported on the shoulder of the inner container by means of its additional support device, eliminating the need for an additional adhesive. This allows the combination packaging container to be separated into the inner container and outer part even more easily and, above all, more reliably after use. Even after the outer part has been separated, the outer part forms a single piece, which can be easily and, above all, as a single piece for proper disposal and recycling. Eliminating the additional adhesive also saves money and prevents potential contamination of the machine during the adhesive application process.

[0072] In a further alternative variant, it can be provided that a section of the outer part is glued to the inner container and that this section remains on the inner container after the outer part has been separated from the inner container, wherein this section is coupled to the remaining parts of the outer part by means of an adhesive layer. In particular, it can be provided that this section has only a small extent so that there is only minimal contamination of the plastic waste. This measure can improve the durability of the entire outer part on the inner container in order to prevent unwanted detachment. In particular, it can be provided that the section remaining on the inner container is dimensioned such that the mass of the section remaining on the inner container is less than 5% of the mass of the inner container.

[0073] For a better understanding of the invention, it is explained in more detail using the following figures.

[0074] They show in a highly simplified, schematic representation: Fig. 1 shows a combination packaging container with an inner container and an outer part with an additional support device, in elevation, partially in section; Fig. 2 shows a detail of the combination packaging container according to Fig. 1 , in section and enlarged view; Fig. 3 a part of the combination packaging container according to the Fig. 1 and 2 , in cross section according to lines III-III in Fig. 1 and enlarged view; Fig. 4 the cut for forming the outer part according to the Fig. 1 to 3, in undeformed, flat position; Fig. 5 another embodiment of a blank for forming the outer part with a different design of the additional support device, in undeformed, flat position; Fig. 6 another detail of the combination packaging container with the further embodiment of the blank according to Fig. 5 , in section and enlarged view; Fig. 7 shows a further embodiment of a combination packaging container with an inner container and an outer part, shown partially in section; Fig. 8 shows a further embodiment of a blank for forming the outer part with a recess for a printing layer in an undeformed, flat position; Fig. 9 shows a sectional view along the section line IX-IX from Fig. 8to illustrate a layered structure; Fig. 10 shows a further exemplary embodiment of a combination packaging container with an inner container and an outer part, the outer part projecting beyond a base of the inner container, shown partially in section; Fig. 11 shows a further exemplary embodiment of a blank for forming the outer part with a wave-shaped design of the additional support device, in an undeformed, flat position; Fig. 12 shows a further exemplary embodiment of a blank for forming the outer part with pointed embossments of the additional support device, in an undeformed, flat position; Fig. 13 shows a further exemplary embodiment of a blank for forming the outer part with pointed incisions of the additional support device, in an undeformed, flat position.

[0075] By way of introduction, it should be noted that in the variously described embodiments, identical parts are provided with identical reference symbols or component designations. The disclosures contained throughout the description can be applied analogously to identical parts with identical reference symbols or component designations. Furthermore, the positional information chosen in the description, such as top, bottom, side, etc., refers to the directly described and illustrated figure, and these positional information must be applied analogously to the new position in the event of a change in position.

[0076] The term "in particular" is understood below to mean that it may refer to a possible more specific embodiment or more detailed specification of an object or a method step, but does not necessarily have to represent a mandatory, preferred embodiment of the same or a mandatory procedure.

[0077] As used herein, the terms "comprising," "indicates," "having," "includes," "including," "contains," "containing," and any variations thereof are intended to cover non-exclusive inclusion.

[0078] Another term that can be used is "optional." This means that this process step or system component is inherently present, but can be used depending on the operating conditions, although this is not mandatory.

[0079] In the Fig. 1 to 4An embodiment of a combination packaging container 1 is shown as an example of a multitude of possible different shapes, wherein the combination packaging containers 1 are cup-shaped or bowl-shaped. The combination packaging container 1 comprises a cup-shaped or bowl-shaped inner container 2 with a base 3 and a container shell 4. The inner container 2 further has an open end 5 on its side facing away from the base 3, wherein a flange 6 projecting outward beyond the container shell 4 can be provided in the region of its open end 5. The base 3 forms a closed end 7 for the container shell 4.

[0080] The inner container 2 is preferably formed by a component produced in a deep-drawing process, which can be manufactured quickly and, above all, in a short cycle time. The deep-drawing process is sufficiently well known and will therefore not be discussed in detail. The deep-drawing process is particularly suitable for producing the inner container 2 from a layer of a formable material to be formed using a deep-drawing tool. The wall thickness is nevertheless sufficient to ensure tightness during storage, use, and even disposal. This manufacturing process enables the inner container 2 to be manufactured with relatively thin walls. However, the inner container 2 can also be formed using other manufacturing methods, such as injection molding.

[0081] Due to the cup- or bowl-shaped design of the inner container 2, a longitudinal axis 8 extends axially between the open end 5 and the end 7 closed by the base 3. This longitudinal axis 8 can also represent a central axis if the design is symmetrical. A sealing plate (not shown in detail) can be arranged in the area of ​​the flange 6 or connected to it. In this case, the flange 6 forms a sealing flange.

[0082] In the axial direction and thus in the direction of the longitudinal axis 8, the inner container 2 has a container height 9 between its open end 5, in particular the flange 6, and the base 3, whereby the receiving volume of the inner container 2 is determined depending on the cross-sectional dimensions. The container height 9 in conjunction with the cross-sectional dimensions thus defines a receiving space of the inner container 2.

[0083] The container shell 4 is understood to be that section of the inner container 2 which extends predominantly axially between the open end 5, in particular the flange 6, and the base 3. The inner container 2 and its container shell 4 are preferably designed such that they taper, preferably conically, from the open end 5 toward the base 3.

[0084] Furthermore, the container shell 4 of the inner container 2 can have a backing 10 in its peripheral section adjacent to the base 3. The backing 10 is also part of the container shell 4, but, viewed in axial section, is offset inwards with respect to an imaginary, straight connecting line between the flange 6 and the base 3. The backing 10, in turn, has at least two backing wall sections (not designated in more detail), wherein the two backing wall sections, viewed in axial section, have a different inclination or direction with respect to the longitudinal axis 8 than the rest of the container shell 4. In this case, the backing 10 is offset inwards and thus in the direction of the receiving space compared to the straight arrangement of the container shell 4 between the flange 6 and the base 3, viewed in axial section.

[0085] Viewed in axial section, the first rear wall section, which directly adjoins the base 3, is arranged or configured to extend predominantly in the direction of the container height 9 toward the open end 5. The further rear wall section extends in a predominantly perpendicular direction with respect to the container height 9, starting from the end of the first rear wall section facing away from the base 3 toward the container shell 4. In the present exemplary embodiment, the further rear wall section forms a stacking shoulder. This stacking shoulder serves to support a similar combination packaging container 1 with its base 3, in particular the edge-side transition section between the base 3 and the container shell 4.

[0086] Furthermore, the inner container 2 can have a shoulder 11 or a bead projecting toward the side facing away from the longitudinal axis 8 in the immediate transition area between the base 3 and the container shell 4, in particular between the base 3 and the rear section 10. The shoulder 11 or the bead can be formed circumferentially. Furthermore, it is also conceivable for the shoulder 11 or the bead to be formed in sections.

[0087] The combination packaging container 1 further comprises an outer part 12 which is sleeve-shaped or jacket-shaped and surrounds the inner container 2 in the region of its container jacket 4 at least in sections or regions.

[0088] The previously described shoulder 11 can, for example, serve to axially fix the sleeve-shaped outer part 12 to the inner container 2. In this case, the sleeve-shaped outer part 12 is supported with its first end face 19 facing the bottom 3 of the inner container 2 on this shoulder 11 formed in the transition region. The shoulder 11 can thus also be referred to as a locking means for holding the outer part 12 to the inner container 2. The end face 19 forms a front edge in its longitudinal extent, which, in the joined position, defines a support area at least in sections and is supported against the shoulder. To simplify the axial joining of the outer part 12 to the inner container 2, it can be provided that the shoulder 11 is designed to taper conically, at least in sections, from the open end 5 to the closed end 7.

[0089] Furthermore, the sleeve-shaped outer part 12 comprises a second end face 20, which in turn faces the open end 5 or the flange 6.

[0090] The sleeve-shaped outer part 12 is preferably formed from a cellulose material, such as cardboard, with sufficient strength with regard to the absorption and transmission of, in particular, axially acting compressive forces, and is wound from a flat blank 13 into a sleeve, as is already sufficiently known. The blank 13 is usually printed in its undeformed, flat position and, if necessary, provided with an additional coating. In particular, it is of course also conceivable for the blank 13 to be formed from several parts. The material used for the blank 13 is usually a cellulose material, although this can also be cardboard or strong paper produced using a recycling process. If a layer or ply of the outer part 12 is formed from a recycled material, an additional layer of a higher-quality paper can be arranged on or bonded to at least one of the surfaces.This additional layer ensures flawless printing for the production of decorations, labels and product information.

[0091] The sleeve-like or jacket-like outer part 12 leads to an additional reinforcement or stiffening effect of the inner container 2 and thus of the entire combination packaging container 1.

[0092] This provides high strength and good thermal insulation on the one hand, and optimal light protection for the contents of the packaging container on the other.

[0093] In particular, it can also be provided that the cardboard is additionally coated or sealed with a water-repellent material in the area of ​​the cut edges. This is particularly advantageous when the combination packaging containers 1 are exposed to increased moisture ingress. Coating the cardboard used for the outer part 12 with a water-repellent layer prevents the cardboard from swelling in a humid environment and ultimately detaching from the container shell 4 of the combination packaging container 1.

[0094] The sleeve-shaped outer part 12 is wound from the mostly flat blank 13 to form a jacket. Furthermore, it can be provided that the adhesive layer 48 is applied to an outer surface 42 of the blank 13 in the region of the first end section 14. The adhesive can be in granular form and melted. In the melted state, the adhesive can then be sprayed onto the outer surface 42 of the end section 14 using a nozzle. By winding the blank, end sections 14, 15 facing one another are then connected to one another in an overlap region 16 shown in a simplified manner. This is achieved by a so-called overlap seam, by means of which the first end section 14 and the second end section 15 adhere to one another, e.g. by means of an adhesive layer 48.The first end section 14 of the blank 13 ends with a first longitudinal edge 17, and the second end section 15, in turn, ends with a second longitudinal edge 18. In the overlap region 16, the two longitudinal edges 17, 18 run approximately parallel to one another, with the overlap region 16 being formed between them with an overlap width as viewed in the circumferential direction. In particular, it can be provided that, in the wound state of the outer part 12, the second end section 15 is folded over the first end section 14 on the outside.

[0095] The winding of the sleeve-shaped outer part 12 can be carried out with the aid of a winding mandrel.

[0096] The outer part 12 further comprises the first end face 19 and the second end face 20, wherein the two end faces 19, 20 are spaced apart from one another and, in the erected state, define an overall height 21 of the shell. The previously described longitudinal axis 8 can also define the common longitudinal axis for the outer part 12, particularly when the outer part 12 is in its assembled position on the inner container 2. The overall height 21 of the shell is usually slightly less than the container height 9 of the inner container 2 in the same spatial direction—namely, in the direction of the longitudinal axis 8.

[0097] A possible, but not mandatory, arrangement and / or design for separating the outer part 12 from the inner container 2 is described below. This is a so-called predetermined separation area 22, which is arranged and formed in the material of the outer part 12. The following detailed description of the predetermined separation area 22 corresponds to the design already described in WO 2020 / 245148 A1. However, the predetermined separation area 22 could also be designed differently and deviates from this.

[0098] In order to enable a defined severing and, associated with this, subsequent separate disposal of the inner container 2 and outer part 12 for a consumer, at least one predetermined severing region 22 is provided in the casing of the outer part 12. The predetermined severing region 22 here comprises a first severing section 23, a second severing section 24, and an actuating means 25 for starting and beginning the severing process of the predetermined severing region 22 along the two severing sections 23, 24. The actuating means 25 is arranged between the two end faces 19, 20, viewed in the direction of the overall height 21 of the casing. It is advantageous if the actuating means 25 is arranged approximately centrally between the two end faces 19, 20, which are spaced apart from one another in the direction of the overall height 21, this essentially corresponding to half the overall height 21.The term "central" refers to half the dimension of the actuating means 25 in the direction of the overall height 21 or the longitudinal axis 8. The two separating sections 23, 24 are provided on both sides of the actuating means 25 and each extend in the direction of the respective end face 19, 20.

[0099] Viewed in the direction of the overall height 21 of the casing, the two separating sections 23, 24 of the intended separating area 22 are each aligned so as to converge from the two end faces 19, 20 and thus define an imaginary, straight connecting line 26 between them, which is shown in dashed lines. The converging alignment of the two separating sections 23, 24 is in each case related to the direction of the actuating means 25. The two separating sections 23, 24 can either be aligned so as to be flush with one another, viewed in the direction of the overall height 21 of the casing, or they can run at a slight incline with respect to the first longitudinal edge 17 in the direction of the actuating means 25 located between them. This slight inclination can further improve the separating process after the two separating sections 23, 24 have been separated towards the two end faces 19, 20.Furthermore, it is also conceivable for the two separating sections 23, 24 of the intended separation area 22 to be formed in an arc shape. For example, the two separating sections 23, 24 of the intended separation area 22 can extend in a spiral shape.

[0100] Depending on the design of the predetermined separation points, which will be described in more detail later, the imaginary connecting line 26 is assumed to run at the center of the predetermined separation points. The actuating means 25, in turn, defines a detection section 27 with a first detection section end 28 and a second detection section end 29 spaced apart from one another in the direction of the overall height 21. Thus, the two detection section ends 28, 29 are arranged or end at a distance 30 from one another in the direction of the overall height 21 of the casing. Furthermore, it can also be seen that the detection section 27 of the actuating means 25 is arranged or formed outside the overlap region 16.

[0101] An arrangement of the actuating means 25 is provided here in which the detection section 27, viewed in the circumferential direction, is arranged or formed laterally spaced by an offset 31 relative to the converging separating sections 23, 24 of the desired separating region 22 and the imaginary straight connecting line 26 between them. The offset 31 can have a value selected from a range of values ​​with a lower limit of 1.0 mm and an upper limit of 10.0 mm. Preferably, the range of values ​​can have a lower limit of 2.0 mm and an upper limit of 6.0 mm.

[0102] The first separating section 23 can, in turn, have a first end 32 facing the actuating means 25, wherein the second separating section 24 can have a second end 33 facing the actuating means 25. In the region of the imaginary connecting line 26 between the two ends 32, 33, the casing can be designed to be uninterrupted due to the intended lateral offset 31 of the actuating means 25. The arrangement of the two ends 32, 33 of the separating sections 23, 24, which are spaced apart from one another in the direction of the overall height 21, with respect to the detection section 27 forming the actuating means 25 can be selected such that the first detection section end 28 of the detection section 27 overlaps the adjacent first end 32 of the first separating section 23 on the side facing away from the second separating section 24.Due to the lateral offset 31 of the detection section 27 to the side facing away from the overlap region 16, a first predetermined separation section 34 is formed in the circumferential direction in the jacket of the outer part 12 between the first detection section end 28 and the first end 32 of the first separation section 23.

[0103] Furthermore, it can be provided that the second detection section end 29 of the detection section 27 overlaps the adjacent second end 33 of the second separating section 24 on the side facing away from the first separating section 23. Thus, analogous to the first intended separating section 34, a second intended separating section 35 is also formed in the casing of the outer part 12 between the second detection section end 29 and the second end 33 of the second separating section 24, viewed in the circumferential direction. The two intended separating sections 34, 35 are formed by the reduced dimension of the casing material between the respective detection section end 28 or 29 and the respective end 32 or 33.

[0104] The two ends 32 and 33 of the separating sections 23, 24 are arranged closer to each other than the two detection section ends 28 and 29, which are spaced apart by the distance 30.

[0105] This makes it possible for a user of the combination packaging container 1 to grasp the actuating means 25 with its grasping section 27, then separate the two predetermined separation sections 34, 35 starting from the grasping section 27 up to the respective ends 32, 33 of the two separation sections 23, 24, and subsequently separate the two separation sections 23, 24 until the jacket is completely severed. This allows the outer part 12 to be easily separated from the inner container 2 and separated for disposal. The two predetermined separation sections 34, 35 each form starting sections for the separation of the two separation sections 23, 24.

[0106] Each of the two separating sections 23, 24 can comprise a plurality of predetermined separating points arranged one behind the other in a row, which are usually formed as perforations, in particular also as short cuts, in the material of the outer part 12.

[0107] This exemplary embodiment shows that the shape and position of the predetermined separation points can be selected differently from one another. Therefore, those predetermined separation points located directly adjacent to the respective detection section ends 28, 29 are referred to as first predetermined separation points 36. The further predetermined separation points provided subsequently toward one of the two end faces 19, 20 are referred to as second predetermined separation points 37 and third predetermined separation points 38.

[0108] The predetermined separation points 36, 37, 38 are aligned with respect to a plane 39 centrally and in normal alignment to the longitudinal axis 8 - see Fig. 1 - are designed and arranged in a mirror image of each other. Therefore, only those predetermined separation points 36, 37, 38 located in the area of ​​the first separation section 23 will be described in detail and are to be transferred analogously to the second separation section 24.

[0109] Furthermore, in the lower left corner area of ​​the combi packaging container 1 shown in the section, Fig. 1 and in the enlarged representation in the Fig. 2 It is shown that an additional support device 40 is provided or formed in the region or section of the first end face 19 of the blank 13 or of the outer part 12 formed therefrom by solely deforming the material of the blank 13. The additional support device 40 serves or is designed to ensure that the outer part 12 is or will be supported even more securely in the axial direction on the shoulder 11 of the inner container 2 until it is detached from the inner container 2.

[0110] The additional support device 40 is further configured such that a clear internal dimension of the finished, formed outer part 12 is smaller than the undeformed configuration. The bottom end face 19 of the outer part 12 already forms or defines the support area that interacts with the shoulder 11, which is further improved, in particular enlarged, and made more secure by the provision or configuration of the additional support device 40.

[0111] In this first exemplary embodiment shown here, the additional support device 40 comprises at least one support element 41, but preferably a plurality of support elements 41 arranged at a distance from one another along the first end face 19, which support elements 41 are distributed over the circumference of the sleeve-shaped outer part 12. The individual support elements 41 can be formed into the material of the blank 13 by forming or embossing and are thus each an integral part of the blank 13. The support elements 41 are formed and thus formed starting from an outer surface 42 of the outer part 12 in the direction of an inner surface 43. They thus protrude in the radial direction beyond the undeformed inner surface 43 in the direction of the longitudinal axis 8. The projection can have a value that originates from a value range whose lower limit is 0.05 mm, in particular 0.1 mm, and whose upper limit is 0.5 mm, in particular 0.2 mm.

[0112] A clear inner dimension 44 of the additional support device 40 formed by the support elements 41 can thus be smaller than an inner dimension 45 of the outer part 12 in its undeformed form without the support elements 41. By molding the at least one support element 41, the first end face 19 is also deformed along its longitudinal profile and thus also forms a support surface for the outer part 12 on the shoulder 11. The longitudinal profile can also be designed in the form of a longitudinal corrugation.

[0113] The support element 41 has or the support elements 41 have a longitudinal extension starting from the first end face 19 in the direction of the second end face 20. Thus, the support element 41 or the support elements 41 extend as far as the first end face 19. The length of the at least one support element 41 can be, for example, a few millimeters and depends on the size and design of the rear part 10. Possible examples include 2 mm to 15 mm, preferably 5 mm to 10 mm. The cross-sectional shape of the support element 41 or the support elements 41 is shown only as an example. Instead of the rather angular cross-sectional shape shown here, a rounded or arcuate cross-sectional shape would also be conceivable.

[0114] In the Fig. 4 is the cut 13 to form the previously in the Fig. 1 to 3described outer part 12 in its undeformed, flat position, whereby the same reference numerals or component designations are used for the same parts as in the previous Fig. 1 to 3 To avoid unnecessary repetition, please refer to the detailed description in the previous Fig. 1 to 3 pointed out or referred to.

[0115] The previously described predetermined separation area 22 is not shown in detail here, but can also be provided as previously described as a possible and optional variant. Furthermore, the orientation of the individual support elements 41, starting from the first end face 19 facing the ground and moving toward the second end face 20, is more clearly visible here. Due to the arcuately curved longitudinal profile of the two end faces 19, 20 and their common center (center of the radius), the individual support elements 41 also have a longitudinal profile aligned toward the center.

[0116] As from Fig. 4 As can be seen, it can be provided that the adhesive layer 48 is applied to the outer surface 42 of the blank 13 in the region of the first end section 14. The adhesive layer 48 can be applied shortly before the blank 13 is formed into the outer part 12.

[0117] As from Fig. 4As can also be seen, it can be provided that the adhesive layer 48 is strip-shaped. The adhesive layer 48 can run parallel to the first longitudinal edge 17. Furthermore, it is conceivable for the adhesive layer 48 to have a length 53 or a width 54. Furthermore, the blank 13 can have a longitudinal edge length 52 in the region of the first end section 14, in particular at the first longitudinal edge 17. For the consideration of the longitudinal edge length 52, any shortening of the actual longitudinal edge length due to rounding or due to a phase is disregarded here. The entire extension of the blank 13 between the first end face 19 and the second end face 20 is thus considered to be the longitudinal edge length 52.

[0118] As from Fig. 4As can also be seen, it can be provided that the adhesive layer 48 is arranged in the wound state at a distance 55 from the second longitudinal edge 18. The position of the second longitudinal edge 18 in the wound state in the illustration according to Fig. 4 is indicated schematically by the dashed line.

[0119] In the Fig. 5 and 6 a further and possibly independent embodiment of the outer part 12 formed from the blank 13 to the jacket is shown, wherein again the same reference numerals or component designations are used for the same parts as in the previous Fig. 1 to 4 To avoid unnecessary repetition, please refer to the detailed description in the previous Fig. 1 to 4 pointed out or referred to.

[0120] It should be noted that here, too, it is optionally possible to provide or form the predetermined separation area 22, which has already been described in detail. For the sake of clarity and to avoid unnecessary repetition, the illustration and description of this area have been omitted.

[0121] The blank 13 and the outer part 12 formed therefrom in turn comprise the additional support device 40, which, however, has a different design than the previously described embodiment. To form the additional support device 40, the additional support device 40 comprises at least one forming section 46, which is also molded into the material of the blank 13. In contrast to the previously described embodiment, the at least one forming section 46 is formed starting from the inner surface 43 of the outer part 12 in the direction of its outer surface 42. Furthermore, the at least one forming section 46 is arranged at a distance from the first end face 19 in the direction of the opposite second end face 20.

[0122] Viewed in axial section, the at least one forming section 46 can have a longitudinal profile that is generally curved outward. Adjacent to the at least one forming section 46, an end section 47 is provided in the direction of the first end face 19. Thus, a corresponding end section 47 is also formed or arranged adjacent to each forming section 46. The end section 47 can, in turn, be oriented so as to extend at an angle toward the longitudinal axis 8.

[0123] How better now from the Fig. 5As can be seen, the at least one forming section 46 can have a parallel longitudinal extension with respect to the first end face 19. It is also possible for the forming section 46 to be arranged or formed to run continuously along the first end face 19 in the circumferential direction. Irrespective of this, it would also be conceivable for a plurality of forming sections 46 to be provided and for the forming sections 46 to be arranged spaced apart from one another along the first end face 19 in the circumferential direction.

[0124] By deliberately additionally forming the blank 13 in the area of ​​its first end face 19, it is achieved that the previously described end section 47 with the first end face 19 located thereon forms or defines the at least one support element 41. The at least one support element 41, in the upright position of the blank 13 relative to the outer part 12, in turn defines the clear inner dimension 44, which is smaller than an inner dimension 45 of the outer part 12 in its undeformed configuration without the forming section 46. The bottom end of the outer part 12 is shown in dashed lines in the Fig. 6 still hinted at.

[0125] Due to the formation and shaping of the forming section 46, it may be necessary to make the undeformed height between the first and second end faces 19, 20 somewhat longer in order to subsequently achieve support on the shoulder 11 on the one hand and to be able to cover the container shell 4 up to the flange 6 immediately adjacent thereto on the other hand.

[0126] However, it would also be possible to form the forming section 46 from the outer surface 42 towards the inner surface 43 and thus form a kind of kink.

[0127] To mutually bond the end sections 14, 15 of the previously flat blank 13, which face each other during the formation of the jacket, an adhesive layer 48 is preferably inserted or used in the overlapping area 16 to be formed. This adhesive layer can be applied to one of the end sections 14 or 15 or to both of them, as is well known.

[0128] Separating, disposing of, and subsequently recycling the different materials presents a major challenge. The inner container 2 is usually made of a plastic or a degradable material that can be thermoformed. The outer part 12 is preferably made of a cellulose material. The blank 13 can also be provided with a printed image on at least one of its flat sides, namely the outer surface 42 and / or the inner surface 43.

[0129] Since the separation process of the outer part 12 from the inner container 2 is usually not carried out or only partially carried out by the consumers, it can further be provided that the adhesive layer 48 arranged in the overlapping region 16 is designed such that the first end section 14 and the second end section 15 can be detached from each other again in the overlapping region 16 from the coupled state.

[0130] In particular, it can be provided that, viewed in the circumferential direction and thus in tension or shear, the adhesive has a sufficiently high adhesive force value to ensure sufficient mutual hold of the two end sections 14, 15 against one another under the usual loads on a filled combination packaging container 1.

[0131] However, if a compressive force -F- is applied to an empty combination packaging container 1 that is to be separated, and the outer part 12 and the container shell 4 of the combination packaging container 1 are spatially deformed in the process, the adhesive force of the adhesive layer 48 can be exceeded and the held-together end sections 14, 15 separate from each other, at least in sections. The compressive force -F- can be applied to the combination packaging container 1 in a wide variety of directions and is at least partially converted into a separation force that at least partially separates the overlapping area 16.

[0132] For example, compression can be performed in the radial and / or axial directions. This spatially deforms the entire combination packaging container 1. When a compressive force -F- is applied in the axial direction, the outer part 12 and the container shell 4 bend in the direction of the longitudinal axis 8, thus allowing the overlapping area 16 to be separated.

[0133] By providing or forming the additional support device 40 in the immediately adjacent edge region to the first end face 19, the sleeve-shaped outer part 12 can be supported even better and more securely in the axial direction on the shoulder 11 of the inner container 2 without the use or necessity of an additional adhesive. The adhesive point previously provided for safety reasons between the inner surface 43 of the outer part 12 and the container shell 4 can thus be omitted and no longer needs to be provided. Thus, when separating the overlap region 16 with the adhesive used and / or separating the predetermined separation region 22, an unwanted adhesive connection between the outer part 12 and the inner container 2 can be avoided.

[0134] This allows the user of the combination packaging container 1 to forgo the separation process and can dispose of the entire combination packaging container 1. The separation process of the intended separation area 22 is then carried out mechanically during collection and / or waste disposal using a press or a squeezing device, or by the weight of a large amount of waste.

[0135] Furthermore, for the separation process to be carried out by one person, it would be possible for the combination packaging container to be placed on a support surface either with its closed end or with the open end of the inner container, and then the compressive force -F- to be exerted on the end facing away from the support surface in the direction of the support surface. Depending on the arrangement and setup of the combination packaging container, the compressive force can be easily applied to the combination packaging container, for example, using human force, and introduced into it. The risk of injury can be minimized with an arrangement in which the compressive force is applied to the floor.

[0136] It would also be possible to exert the compressive force -F- on the combination packaging container in a parallel orientation with respect to a longitudinal axis extending between the open end and the closed end, or in an orientation at an angle to the longitudinal axis. This allows the compressive force, with a parallel force application, to be easily redirected, at least for the most part, into a tearing force acting in a predominantly radial direction, which leads to the outer part bursting open in its overlapping area. If the force application direction deviates from this, the spatial deformation can also cause the overlapping area to separate.

[0137] If the previously described separation area is also provided, the separation process of the combination packaging container 1 into its various components can be carried out either by a single person or during the collection and disposal process.

[0138] In the Fig. 7 a further and possibly independent embodiment of the combination packaging container 1 is shown, wherein again the same reference numerals or component designations are used for the same parts as in the previous Fig. 1 to 6 To avoid unnecessary repetition, please refer to the detailed description in the previous Fig. 1 to 6 pointed out or referred to.

[0139] As from Fig. 7As can be seen, it can be provided that the adhesive layer 48 is arranged at a distance 55 from the second longitudinal edge 18. Since the adhesive layer 48 is located between the first end section 14 and the second end section 15 and, in the present case, is concealed by the second end section 15, it is shown in dashed lines.

[0140] As from Fig. 7 As can be seen, it can be provided that the outer part 12 does not require the support device 40. In Fig. 7 Furthermore, the adhesive layer 48 is shown schematically, which is arranged between the first end section 14 and the second end section 15. As can be seen from Fig. 7 As can be seen, the adhesive layer 48 is arranged at a distance 55 from the second longitudinal edge 18.

[0141] In the Figures 8 and 9a further and possibly independent embodiment of the blank 13 is shown, wherein again the same reference numerals or component designations are used for the same parts as in the previous Fig. 1 to 7 To avoid unnecessary repetition, please refer to the detailed description in the previous Fig. 1 to 7 pointed out or referred to.

[0142] As can be seen from the Figs. 8 and 9As can be seen, it can be provided that the blank 13 has a layered structure. In particular, it can be provided that a carrier layer 49 is formed, which can be made of a cellulose material, such as a cardboard material. A printing layer 50 can be applied to the carrier layer 49, which serves to visually display information on the blank 13. Furthermore, a sealing layer 51 can be formed, which covers the printing layer 50. In particular, it can be provided that the outer surface 42 is formed on the sealing layer 51. Furthermore, it can be provided that the inner surface 43 is formed on the carrier layer 49.

[0143] As from Fig. 8 or from Fig. 9As can also be seen, it can be provided that the adhesive layer 48 is arranged on the outer surface 42 of the sealing layer 51. In particular, it can be provided that the printing layer 50 is recessed in the area in which the adhesive layer 48 is formed. This can also be referred to as a printing recess 56. Furthermore, it can be provided that in this area in which the printing layer 50 is recessed, the sealing layer 51 directly contacts the carrier layer 49 or is arranged directly on the carrier layer 49. As can be seen particularly well from Fig. 8 As can be seen, it can be provided that the pressure recess 56 has a recess depth 57. Furthermore, the overlap of the first end section 14 and the second end section 15 can have an overlap depth 58. As can be seen from Fig. 8 As can be seen, the recess depth 57 can be smaller than the overlap depth 58.

[0144] In the Fig. 10a further and possibly independent embodiment of the combination packaging container 1 is shown, wherein again the same reference numerals or component designations are used for the same parts as in the previous Fig. 1 to 9 To avoid unnecessary repetition, please refer to the detailed description in the previous Fig. 1 to 9 pointed out or referred to.

[0145] As from Fig. 10As can be seen, it can be provided that the outer part 12 extends beyond the bottom 3 of the inner container 2. Furthermore, it can be provided that the outer part 12 has a bottom section 59. Since the shoulder 11 as an axial support is missing in such an embodiment, it can be provided that an axial securing groove 60 is formed in the inner container 2, in particular in the container shell 4, which can interact with a correspondingly designed support device 40 of the outer part 12. The support device 40 can be designed as already described.

[0146] In the Fig. 11 a further and possibly independent embodiment of the blank 13 is shown, wherein again the same reference numerals or component designations are used for the same parts as in the previous Fig. 1 to 10 To avoid unnecessary repetition, please refer to the detailed description in the previous Fig. 1 to 10 pointed out or referred to.

[0147] As from Fig. 11 As can be seen, it can be provided that the forming section 46 is formed in a wave-like manner in the material of the blank 13. In other words, the forming section 46 can have a varying distance from the first end face 19 along its longitudinal extent. In particular, it can be provided that the wave shape corresponds to recesses or profiles of the inner container 2.

[0148] In the Fig. 12 a further and possibly independent embodiment of the blank 13 is shown, wherein again the same reference numerals or component designations are used for the same parts as in the previous Fig. 1 to 11 To avoid unnecessary repetition, please refer to the detailed description in the previous Fig. 1 to 11 pointed out or referred to.

[0149] As from Fig. 12As can be seen, it can be provided that the individual support elements 41 can be introduced into the material of the blank 13 by forming or embossing. The support elements 41 can be curved on their upper side, as is shown, for example, in the left half of the blank 13. Furthermore, the support elements 41 can also be tapered on their upper side, as is shown, for example, in the right half of the blank 13. Of course, the support elements 41 can also be trapezoidal or have some other shape. In a first embodiment, it is conceivable that all of the support elements 41 have the same selected shape. In a further embodiment, it is conceivable that the support elements 41 on a single blank 13 have a different shape.

[0150] In the Fig. 13a further and possibly independent embodiment of the blank 13 is shown, wherein again the same reference numerals or component designations are used for the same parts as in the previous Fig. 1 to 12 To avoid unnecessary repetition, please refer to the detailed description in the previous Fig. 1 to 12 pointed out or referred to.

[0151] As from Fig. 13 As can be seen, it can be provided that the support elements 41 are arranged at a distance from the first end face 19. The individual support elements 41 can have a shape as shown in Fig. 12 described.

[0152] Furthermore, the individual support elements 41 can be cut on their underside, which faces the first end face 19. This is shown in Fig. 13 shown in dashed lines.

[0153] The Fig. 13The support elements 41 shown can correspond to the shoulder 11 of the inner container 2 and can be supported thereon, wherein the first end face 19 can extend beyond the bottom 3 of the inner container 2.

[0154] The embodiments show possible embodiments, whereby it should be noted at this point that the invention is not limited to the specifically illustrated embodiments thereof, but rather various combinations of the individual embodiments with each other are also possible and this possibility of variation lies within the skill of the person skilled in the art in this technical field due to the teaching of technical action by means of the objective invention.

[0155] The scope of protection is determined by the claims. However, the description and drawings must be used to interpret the claims. Individual features or combinations of features from the various embodiments shown and described may represent independent inventive solutions. The problem underlying these independent inventive solutions can be derived from the description.

[0156] All information on value ranges in this description is to be understood as including any and all sub-ranges thereof, e.g. the information 1 to 10 is to be understood as including all sub-ranges starting from the lower limit of 1 and the upper limit of 10, ie all sub-ranges begin with a lower limit of 1 or greater and end with an upper limit of 10 or less, e.g. 1 to 1.7, or 3.2 to 8.1, or 5.5 to 10.

[0157] For the sake of clarity, it should finally be pointed out that, in order to better understand the structure, some elements have been shown out of scale and / or enlarged and / or reduced in size. Reference symbol list 1 Combined packaging containers 31 Offset 32 first end 2 inner container 33 second end 3 Floor 34 first predetermined separation section 4 Container shell 35 second predetermined separation section 5 open ending 36 first predetermined separation point 6 flange 37 second predetermined separation point 7 closed end 38 third predetermined separation point 8 Longitudinal axis 39 level 9 Container height 40 Support device 10 Rear pull 41 Support element 11 shoulder 42 exterior surface 12 outer part 43 inner surface 13 Cutting 44 inner dimensions 14 first final section 45 Internal dimensions 15 second final section 46 Forming section 16 Overlap area 47 final section 17 first longitudinal edge 48 Adhesive layer 18 second longitudinal edge 49 Carrier layer 19 first front side 50 Printing layer 20 second front side 51 Sealing layer 21 Height 52 Longitudinal edge length 22 Target separation area 53 length 23 first separation section 54 Width 24 second separation section 55 Distance 25 Actuating means 56 pressure recess 26 connecting line 57 Recess depth 27 Recording section 58 Overlap depth 28 first recording section end 59 floor section 29 second recording section end 60 axial locking groove 30 Distance

Claims

1. A combination packaging container (1), comprising: - a cup-shaped inner container (2), wherein the inner container (2) has a container jacket (4) having an open end (5) and a closed end (7) with a bottom (3) - an outer part (12) which encases the inner container (2), wherein the outer part (12) is formed from a blank cut (13), said blank cut (13) having a first end portion(14) and a second end portion (15), wherein the blank cut (13) is wound into a jacket, thereby coupling the first end portion (14) and the second end portion (15) to one another in an overlapping region (16) by means of an adhesive layer (48) made of an adhesive, wherein the outer part (12) further has a first end face (19) and a second end face (20) and the two end faces (19, 20) are spaced apart from one another, wherein the first end face (19) faces the bottom (3) and the second end face (20) the open end (5) of the inner container (2), characterized in that the adhesive layer (48) is configured such that the first end portion (14) and the second end portion (15) can be detached from one another in the overlapping region (16).

2. The combination packaging container (1) according to Claim 1, characterized in that the blank cut (13) has a multilayer, composite structure, wherein a support layer (49), in particular made of a cellulose material, is formed and wherein a printing layer (50) is arranged on the support layer (49) at least in sections and wherein a sealing layer (51) is formed at least in sections, wherein the printing layer (50) is arranged at least in sections between the support layer (49) and the sealing layer (51), wherein the adhesive layer (48) is arranged on the sealing layer (51).

3. The combination packaging container (1) according to Claim 2, characterized in that the printing layer (50) is recessed in the region of the adhesive layer (48) in the region of the first end portion (14), in particular that the sealing layer (51) is arranged directly on the support layer (49) in this region.

4. The combination packaging container (1) according to one of the Claims 1 to 3, characterized in that the adhesive is a hot-melt adhesive.

5. The combination packaging container (1) according to one of the Claims 1 to 4, characterized in that the adhesive layer (48) in the first end portion (14) abuts against an outer surface (42) and the adhesive layer (48) in the second end portion (15) abuts against an inner surface (43), wherein the first end portion (14) has a first tensile strength in the region of the outer surface (42) against which the adhesive layer (48) abuts, and the second end portion (15) has a second tensile strength in the region of the inner surface (43) against which the adhesive layer (48) abuts, and that the adhesive has a peel strength, wherein the peel strength of the adhesive is less than the first tensile strength of the outer surface (42) of the first end portion (14).

6. The combination packaging container (1) according to one of the Claims 1 to 5, characterized in that the adhesive has a peel strength and a shear strength, wherein the adhesive is selected such that the shear strength is greater than the peel strength.

7. The combination packaging container (1) according to one of the Claims 1 to 6, characterized in that the adhesive has a shear strength between 0.04N / mm2 and 2N / mm2, in particular between 0.09N / mm2 and 1N / mm2, preferably between 0.12N / mm2 and 0.5N / mm2 in adhesion to the sealing layer (51).

8. The combination packaging container (1) according to one of the Claims 1 to 7, characterized in that the adhesive has a peel strength between 0.0005N / mm2 and 1N / mm2, in particular between 0.001N / mm2 and 0.01N / mm2, preferably between 0.003N / mm2 and 0.007N / mm2 in adhesion to the sealing layer (51).

9. The combination packaging container (1) according to one of the Claims 1 to 8, characterized in that the adhesive has a tensile strength between 0.1N / mm2 and 60N / mm2, in particular between 1N / mm2 and 30N / mm2, preferably between 10N / mm2 and 20N / mm2.

10. The combination packaging container (1) according to one of the Claims 1 to 9, characterized in that the adhesive has a peel strength, a shear strength and a tensile strength, wherein the adhesive is selected such that the tensile strength is greater than the shear strength and the tensile strength is greater than the peel strength.

11. The combination packaging container (1) according to one of the Claims 1 to 10, characterized in that a first longitudinal edge (17) is formed on the first end portion (14) having a first longitudinal edge length (52), wherein the adhesive layer (48) has an elongated extension and is arranged to run parallel to the longitudinal edge (17).

12. The combination packaging container (1) according to Claim 11, characterized in that a length (53) of the adhesive layer (48) is between 100% and 80%, in particular between 99% and 85%, preferably between 97% and 93% of the first longitudinal edge length (52).

13. The combination packaging container (1) according to Claim 11 or 12, characterized in that a width (54), of the adhesive layer (48) is between 1mm and 10mm, in particular between 1.5mm and 7mm, preferably between 2.5mm and 3.5mm.

14. The combination packaging container (1) according to one of the Claims 11 to 13, characterized in that the adhesive layer (48) is arranged at a distance (55) of between 1mm and 10mm, in particular between 1.5mm and 7mm, preferably 2.5mm and 3.5mm from the second longitudinal edge (18).

15. The combination packaging container (1) according to one of the Claims 1 to 14, characterized in that the inner container (2) has a shoulder (11) projecting radially outwardly in the region of the closed end (7), wherein the shoulder (11) serves as an axial stop for the first end face (19) of the outer part (12).

16. The combination packaging container (1) according to Claim 15, characterized in that the shoulder (11) is configured to taper conically at least in sections from the open end (5) to the closed end (7).

17. The combination packaging container (1) according to one of the Claims 1 to 16, characterized in that the container jacket (4) of the inner container (2) is configured to taper conically at least in sections from the open end (5) to the closed end (7).

18. A method for producing a combination packaging container (1), in particular the combination packaging container (1) according to one of the Claims 1 to 17, comprising the method steps: - providing a cup-shaped inner container (2), wherein the inner container (2) has a container jacket (4) having an open end (5) and a closed end (7) with a bottom (3) - forming an outer part (12) to encase the inner container (2) wherein the outer part (12) is formed from a blank cut (13), said blank cut (13) having a first end portion (14) and a second end portion (15), wherein the blank cut (13) is wound into a jacket and the first end portion (14) and the second end portion (15) are coupled to one another in an overlapping region (16) by means of an adhesive layer (48) made of an adhesive wherein the outer part (12) further has a first end face (19) and a second end face (20) and the two end faces (19, 20) are spaced apart from one another - axially sliding the outer part (12) onto the inner container (2), wherein the first end face (19) is made to face the bottom (3) and the second end face (20) the open end (5) of the inner container (2) or directly forming the outer part (12) by wrapping the inner container (2). characterized in that the adhesive layer (48) is configured such that the first end portion (14) and the second end portion (15) can be detached from one another in the overlapping region (16).

19. The method according to Claim 18, characterized in that a hot-melt adhesive is used for applying the adhesive layer (48) to the blank cut (13), the former being applied to an outer surface (42) of the blank cut (13) in the region of the first end portion (14) before forming the outer part (12).

20. The method according to Claim 19, characterized in that the hot-melt adhesive is originally present in granular form and is melted by heating, in particular to a temperature between 130°C and 160°C, and is pressed through a nozzle for application to the outer surface (42) of the blank cut (13).

21. A method for separating a combination packaging container (1), in particular the combination packaging container (1) according to one of the Claims 1 to 16, with a cup-shaped inner container (2), wherein the inner container (2) has a container jacket (4) having an open end (5) and an closed end (7) with a bottom (3), and an outer part (12) encasing the inner container (2),wherein the outer part (12) is formed from a blank cut (13), said blank cut (13) having a first end portion (14) and a second end portion (15), wherein the blank cut (13) is wound into a jacket and the first end portion (14) and the second end portion (15) are coupled to one another in an overlapping region (16) by means of an adhesive layer (48) made of an adhesive, wherein the outer part (12) further has a first end face (19) and a second end face (20) and the two end faces (19, 20) are spaced apart from one another, wherein the first end face (19) faces the bottom (3) and the second end face (20) the open end (5) of the inner container (2), characterized by the method step that to separate the outer part (12) from the inner container (2), the first end portion (14) of the outer part (12) and the second end portion (15) of the outer part (12) are detached from one another in the overlapping region (16) on the adhesive layer (48).

22. The method according to Claim 21, characterized in that, when detaching the first end portion (14) of the outer part (12) and the second end portion (15) of the outer part (12), the adhesive layer (48) is detached from the first end portion (14) without damaging the first end portion (14) with the adhesive layer (48) remaining on the second end portion (15), or the adhesive layer (48) is detached from the second end portion (15) without damaging the second end portion (15) with the adhesive layer (48) remaining on the first end portion (14).

23. The method according to Claim 21 or 22, characterized in that to separate the outer part (12) from the inner container (2), the first end portion (14) of the outer part (12) and the second end portion (15) of the outer part (12) are detached from one another in the overlapping region (16) on the adhesive layer (48) in that a compressive force (-F-) is applied in the direction of the combination packaging container (1) and, in doing so, the outer part (12) and the container jacket (4) of the combination packaging container (1) are spatially deformed, wherein the spatial deformation of the outer part (12) and the container jacket (4) in the region of the adhesive layer (48) introduces a separating force, which results in the detachment of the adhesive layer (48) from the first end portion (14) or to the detachment of the adhesive layer (48) from the second end portion (15).

24. The method according to Claim 23, characterized in that the spatial deformation of the outer part (12) includes an axial deformation that is greater than 1.5cm from an undeformed state of use and / or a radial deformation that is greater than 2cm from an undeformed state of use.