AT509421B1 - PACKAGING CONTAINER - Google Patents

Abstract

The invention relates to a packaging container (1) having a container casing (2) which has first and second end regions (6, 7) which are distanced from one another in the direction of a longitudinal axis (5). A carrier layer of the container shell (2) is formed of cellulose, such as paper or cardboard. A related, skeletal one-piece component is formed from a processable by injection molding material, wherein the component has a bottom (3), a closure member (4) and at least one continuous between the bottom (3) and the closure member (4) formed connecting web (8) comprises, which are formed together and adjacent to the container casing (2). Of the total mass of the packaging container (1) formed from the injection molding material and the container casing (2), a mass proportion of the container casing (2) to the portion of the injection molding material is greater than 50%.

Description

Austrian Patent Office AT 509 421 B1 2012-09-15

Description: The invention relates to a packaging container comprising a container casing, which has spaced apart in the direction of a longitudinal axis spaced first and second end portions and a carrier layer of the container shell made of cellulose, such as paper or cardboard, a related, skeletal one-piece component of a in one Injection molding processable material, wherein the component of a bottom, which is arranged in the portion of the first end portion, a closure member which is arranged in the portion of the second end portion, as well as at least one formed continuously between the bottom and the closure member connecting web, wherein the Floor, the closure member and the at least one connecting web are formed together and adjacent to the container shell.

DE 21 23 472 A1 or GB 1 348 370 A describe a combined packaging container, the container casing has in the direction of its longitudinal axis spaced apart first and second end portions. The container shell is formed among other things of paper or cardboard. To the container shell a related, skeletal one-piece component is formed from a processable by injection molding material. This one-piece component formed from injection-molded material in turn comprises a bottom which is arranged in the section of the first end region, a closure component which is arranged in the section of the second end region, and at least one connecting web formed continuously between the bottom and the closure component. Here, the bottom, the closure member and the at least one connecting web are formed together and adjacent to the container shell.

From DE 35 21 562 A1 or CH 671 746 A5 a combination box made of a composite material has become known, in which the hull consists of at least one outer cardboard layer, one on the inside covering metallic barrier films and an inner, sealable plastic coating. One side of the fuselage closure is designed as a membrane closure and consists of an outer metal foil with an inside coating, which in turn is formed of a sealable plastic. The bottom of the composite can has in principle the same structure as the hull. It also consists of at least one cardboard layer, which is laminated on the inside with a metallic barrier foil, which in turn carries a coating of a sealable plastic. On the outside, the cardboard layer can be printed with one color. The floor is deep-drawn from the composite material so that it can be inserted into the fuselage. When forming the composite can, the membrane closure is pulled outward with its edge over the open front side of the fuselage and secured to the fuselage by hot or high frequency sealing of the plastic coating and the coating. In this form, the container is provided for the filling operation and introduced there the contents and then closed the container with the bottom. For this purpose, the deep-drawn soil used in the fuselage is deformed with its edge over the open front side of the fuselage and applied to the outer surface of the fuselage. Subsequently, the coating on the hull and the coating on the bottom are sealed by inductive high frequency, so that there is a hermetic, gas and liquid and vapor diffusion-tight closure in the area of the bottom. The sealing process reduces the wall thickness of the hull in the connection area with the ground. A skeletal component formed from injection-molded material is not shown here.

From JP 9 207 936 A, a packaging container has become known, the peripheral wall part is formed from a rolled blank plate. The bottom portion, the pillar-shaped frame member and the upper edge portion are formed and formed of a plastic material in the injection molding process. The peripheral wall part has a multilayer structure, wherein the carrier layer is formed of paper on which a variety of layers such as aluminum, polyethylene, nylon, a layer of a dry laminate and an unstretched polypropylene are applied. Due to a biaxially stretched film, it is 1/29 Austrian Patent Office AT 509 421 B1 2012-09-15

Layer, the tensile strength of the peripheral wall portion is substantially increased, whereby a tearing at an accidental impact between the molded components and the peripheral wall part is avoided. To achieve otherwise unprotected cutting edges they were covered by the introduced plastic material and includes. Due to the high proportion of injection molding material in relation to the circumferential wall part, simple and inexpensive disposal could not be ensured in all cases.

WO 2002/102 670 A1 describes a hermetically sealed container and a process for its production. The tubular container body is formed of a multilayer material in which an outer coating is applied to a cardboard layer. On the inside of the cardboard layer, an oxygen barrier layer and a heat-sealable coating of a thermoplastic material are applied. The top closure is formed by a sealed, peelable closure membrane formed of an oxygen barrier layer and an inner layer of a thermoplastic heat sealable material. The bottom is formed of a deep-drawn material whose layer structure corresponds to the tubular container body. For applying and sealing the bottom closure, the deep-drawn bottom is pushed over the lower edge of the tubular container body and then connected to it via the heat-sealing process. During this connection process, the wall thickness of the container shell is reduced.

From US 4,355,759 A a can-shaped container body has become known, the jacket is formed of a supporting layer of paper or cardboard, which may be provided on its outer side with a layer of an aluminum foil, which may be provided with a decorative coating of glossy paper , Is provided. On the inside of the carrier layer formed from the cardboard material, a layer of a plastic material is applied, to which the bottom part can be molded with its inner side in the course of the manufacturing process for forming the soil is melted by the plastic material forming the soil material, the inner coating, so that they partially penetrates into the cardboard material and forms a firm and tight connection with the material of the soil material. In the course of the manufacturing process of the bottom of the tubular shell portion is reduced in the contact region with the bottom portion in its thickness or thickness.

EP 1 650 134 A2 describes a container made of a shell designed as a shell, to which in the two end regions, on the one hand, a bottom and, on the other hand, a molded part are attached. The shell-shaped base body consists of cardboard, which is coated on at least one side with plastic. The soil is molded directly into the body or on its coated side firmly connected to this. Furthermore, the molded plastic part is attached to the base body by means of the coating of the cardboard.

From JP 9-207936 a packaging container has become known, the peripheral wall part is formed from a rolled blank plate. The bottom portion, the pillar-shaped frame member and the upper edge portion are formed and formed of a plastic material in the injection molding process. The peripheral wall part has a multilayer structure, wherein the carrier layer is formed of paper on which a variety of layers such as aluminum, polyethylene, nylon, a layer of a dry laminate and an unstretched polypropylene are applied. By a biaxially stretched film layer, the tensile strength of the peripheral wall portion is substantially increased, whereby a tearing in an accidental impact between the molded components and the peripheral wall part is avoided. To achieve otherwise unprotected cutting edges they were covered by the introduced plastic material and includes. Due to the high proportion of injection molding material in relation to the peripheral wall part, a simple and inexpensive disposal could not be ensured in all cases.

Another packaging container is known from JP 7-44605, in which from a curved blank plate from a planar blank, the container wall is formed while the bottom, the entire upper opening edge and a columnar connecting seam for connecting the end portions of the blank plate 2/29 Austrian Patent Office AT 509 421 B1 2012-09-15 material. In order to facilitate the preforming of the blank plate toward the container wall, incision lines are formed in the bending region or curvature region of the blank plate along the corner line direction in order to ensure permanent shaping. These incision lines are made in the region of the circumference such that they are arranged outside those sections to which the plastic material is molded. Here, too, a high proportion of plastic material was used to form the components molded onto the blank plate.

Another, cup-shaped receptacle has become known from JP 10-58482. In this case, the cup-shaped paper container is formed from a laminate material which has a paper layer as the main body and has a plastic layer on the inside or on the outside of the container. For this purpose, additional layers can be applied to the main body. Furthermore, a reinforcing frame is formed at certain points of the cup-shaped paper container by an injection molding process. In this case, a part of the reinforcing frame in the form of a bottom ring portion is formed on the inside of the paper container in the transition region between the bottom and the container wall. A pillar portion of the reinforcing frame is disposed in the region of the opposite end portions for connecting them to the inside of the container wall. Finally, the upper opening edge portion is also formed of the plastic material and formed in the same manufacturing process with. In this embodiment, it is first necessary to form a complete paper container incl. Soil and then to this from the plastic by injection molding to form the reinforcing frame.

Another training possibility of a packaging container has become known from JP 58-33411. In this packaging container, both the container wall and the container bottom are formed from a blank, wherein in turn the impact regions in the transition region between the bottom and the container wall, the opposite end portions of the container wall and the upper opening wall portion are formed from a molded plastic material thereon. Here it is again necessary to form a complete paper container incl. Soil and then to mold these from the plastic by injection molding the reinforcing frame.

The present invention has for its object to provide a simple and inexpensive to produce packaging container, which has a high proportion of biodegradable materials and still has a high resistance to the end use.

This object of the invention is solved by the features of claim 1. The advantage resulting from the features of claim 1 lies in the fact that in the formation of the packaging container and in the selection and arrangement of the components to be formed thereon from the injection molding material, only such a small proportion is chosen that the entire packaging container can be referred to as "paper container". applies and can be disposed of as a used unit without separation. Since these are mostly plastic materials, it is precisely these resources that should be greatly minimized. In such packaging containers, the injection molding material to be processed is specifically formed only in those areas where this is required by the selected injection molding process. This can be found here with a minimum of material use Auslangen. The supporting and supporting function seen in the direction of the longitudinal axis takes over the container shell, to which the injection molding material is integrally formed. Thus, the molding or the formation of the component to be produced by injection molding is made possible in a single operation. Thus, the high mold variety can be exploited in the injection molding process, wherein at the end of the manufacturing process, a finished packaging container is present, which is only to be supplied to a filling with the product to be accommodated therein. Depending on the selected closure component and then the closure of the receiving space is ensured. Furthermore, in one operation, starting from the injection point selected in the bottom region, it is also possible to form the section of the packaging container which forms the open end region. Thus, in a single operation after inserting the container casing or the blank thereof into the injection mold, the plastic material softened to form the components to be molded thereon can be selectively distributed in a single operation.

To further increase the carrying capacity and stability of the entire packaging container, in particular in its bottom region, a compression of the wall thickness is selectively carried out so as to achieve a higher density of the material in the predetermined sections , This not only achieves an intimate connection between the container casing and the injection-molding material, but also makes the absorption of moisture more difficult or completely prevented. Since the container jacket usually runs through continuously up to its footprint, this support area is usually exposed to higher moisture accumulations, whereby the risk of swelling of the container shell is. This makes it possible to form the container shell in its overwhelming portion of a biodegradable material, such as paper or cardboard, which is then provided only at those points with the injection molding material, where this is necessary to complete the packaging container. Thus, open cut edges of the container shell can be used without the risk that the container shell during its intended use, such as storage in the cooling rack, takes damage.

Also advantageous is another embodiment according to claim 3, since as a result of the choice of the injection molding process, a large number of design options for the formation of different closure components is created. If the closure component is part of a closure device, it is possible, depending on the intended use of the packaging container to the container shell, to mold the respective closure component provided for this purpose to the closure. In the simplest case, it may be the formation of a flange-shaped seal seal. But this can also be the most diverse snap or threaded connections for other types of closure are formed, since in injection molding a much higher variety of shapes for the design is possible.

A further advantage is an embodiment according to claim 4, as well as the bottom of the packaging container can be formed easily and with as little as possible held material insert from the processable by injection molding material. This avoids additional operations to form a secure bottom finish. Thus, the displays can be found with a simple blank to form the container wall, while still a bottom can be molded to the container shell with low material usage.

The embodiment according to claim 5, it is possible that in the center region of the bottom of the injection point for introducing the injection molding material can be selected and still a secure distribution of the injection molding material up to the bottom edge, possibly even up to the closure component is made possible. By the selected webs or the web cross-section not only the further transport of the softened injection molding material is facilitated, but there is also still a partial reinforcement of the container bottom. As a result, the remaining bottom wall can be formed with the lowest wall thicknesses in order to be able to further reduce the proportion of the injection-molding material to the total mass of the packaging container.

According to another embodiment according to claim 6, the possibility is created to form a defined footprint in the edge region of the packaging container, wherein the remaining soil is arranged distanced from the footprint. This can be created a kind of hollow floor. The container shell, which nowadays mainly serves as an advertising or information surface, can be increased in size to its extent. In this case, an adaptation or change of the filling volume of the entire packaging container with a constant container size is easily possible.

In the embodiment according to claim 7 is of advantage that the delay or uneven shrinkage of the packaging container after its production avoided 4/29 Austrian Patent Office AT 509 421 B1 2012-09-15 be.

Through the development according to claim 8 it is achieved that in a simple manner similarly trained packaging container can be stacked in one another without these can jam each other in the subsequent separation. Due to the selected injection molding process, it is possible to be able to form these easily and in the most diverse ways, since a higher design possibility exists in the injection molding process.

As a result of the embodiment according to claim 9, an uninterrupted outer surface of the packaging container can be created, which represents a high design possibility in the formation as an advertising surface. In addition, the container shell can be provided with a high-quality print image, which then remains unchanged during the molding process of the injection molding material.

Also advantageous is an embodiment according to claim 10, since in conjunction with the applied print image depending on the arrangement and orientation of the connecting webs a high design possibility in the formation of the packaging container is created. In addition, an all-round continuously smooth trained interior of the packaging container is created in its mantle area.

According to one embodiment, as described in claim 11, a targeted forwarding of the softened injection molding material is achieved within the injection mold. As a result, complete filling of the entire mold cavity is ensured as a result.

According to an advantageous embodiment according to claim 12, the possibility is created to be able to easily adapt the packaging container to a wide variety of applications.

But is also an embodiment according to claim 13, since the container shell can be made as a simple blank without high processing costs. Subsequently, the blank is inserted only positioned more in the injection mold and during the manufacture or the introduction of the injection molding material, a stable connection of the end portions of the container shell is also ensured.

According to claim 14, this is formed before the introduction of the container shell this in its final spatial form and then formed thereon the components to be formed, such as the bottom and / or the closure member and / or the connecting webs. This would make it possible to produce the packaging container even with spaced injection points.

In the embodiment according to claim 15, a high possibility of variation for the formation of the container shell is provided, which can then be exactly matched to the predetermined application. Depending on the selected layer structure packaging containers can be created so easy, which meet the requirements of the therein contained contents and still the proportion of injection molding material can be kept low in terms of disposal.

Finally, an embodiment according to claim 16 is also advantageous since the carrier layers or layers corresponding to the respective application can be applied or provided on a carrier layer formed mostly of paper or cardboard. This in turn creates a high possibility of variation in the formation of the packaging container.

For a better understanding of the invention, this will be explained in more detail with reference to the following figures.

In a highly simplified schematic representation, in each case: FIG. 1 shows a perspective view of a first embodiment of a packaging container

Presentation; 5.29

Austrian Patent Office Fig. 2 Fig. 4 Fig. 5 Fig. 6 Fig. 6 Fig. 8 Fig. 9 Fig. 9 Fig. 10 Fig. 11 Fig. 14 Fig. 14 Fig. 15 Fig. 16 Fig. 17 [0048] Figs Fig. 18 Fig. 19 Fig. 20 Fig. 21 AT 509 421 B1 2012-09-15 the container casing as well as the components of the packaging container 1 according to Fig. 1, produced in the injection molding process 1, in view cut and distanced position; the packaging container according to Figures 1 and 2, in axial section. a section of the bottom and the container shell of Figure 3, in an enlarged view. a partial section of the closure member and the container shell of Figure 3, in an enlarged view. the skeleton-like component produced by injection molding with the container jacket removed, in a perspective view; a detail of the container casing in the region of its adjacently arranged end portions with a connecting web connecting the end portions, in section along the lines Vll-VII in Fig. 2; a further embodiment of a packaging container, in perspective view; the packaging container of Figure 8 in view. another embodiment of a packaging container, in perspective view; the packaging container of Figure 10 in a view of the tab. nesting in one another packaging container according to Figures 10 and 11, in axial section. a further embodiment of a packaging container with attached lid, in perspective view; the packaging container of Figure 13 but with the lid removed, in perspective. the packaging container of Figure 14, in plan view. a possible layer structure of the container shell in cross section; a further layer structure of the container shell in cross section; another layer structure of the container shell in cross section; a further layer structure of the container shell in cross section; a section of the bottom and the container shell of another possible embodiment of a packaging container, in axial section and enlarged view; a section of the bottom and the container shell of another possible embodiment of a packaging container, in axial section and an enlarged view; a detail of the container shell in the region of its end portions with a connecting portion connecting the end portions, cut in plan view.

Introductoryly it should be noted that in the differently described embodiments, the same parts are provided with the same reference numerals or identical component names, the disclosures contained in the entire description can be mutatis mutandis to the same parts with the same reference numerals or identical component names. Also, the location information chosen in the description, such as top, bottom, side, etc. related to the immediately described and illustrated figure and are to be transferred to the new situation mutatis mutandis when a change in position. Furthermore, 6/29 Austrian Patent Office AT 509 421 B1 2012-09-15

Represent individual features or combinations of features from the illustrated and described different embodiments of their own, inventive or inventive solutions.

All information on ranges of values in the present description should be understood to include any and all sub-ranges thereof, e.g. is the statement 1 to 10 to be understood that all sub-areas, starting from the lower limit 1 and the upper limit 10 are included, ie. all subregions begin with a lower limit of 1 or greater and end at an upper limit of 10 or less, e.g. 1 to 1.7, or 3.2 to 8.1 or 5.5 to 10.

1 to 7, a first possible embodiment of a packaging container 1 is shown, which comprises a container shell 2, a bottom 3 and at least one closure component 4. It should be mentioned at the outset that the packaging container 1 shown here and the packaging container 1 described below represent only one possible spatial form and these can be adapted depending on the intended use of the product to be packaged in their shape, size and appearance of the respective requirements. There are a variety of cross-sectional shapes such. round, angular, oval and any combination possible.

The container casing 2 has, in the direction of a longitudinal axis 5, spaced-apart first and second end regions 6, 7. In the present exemplary embodiment, the base 3 is arranged in the section of the first end region 6, wherein the closure component 4 is located in the section of the second end region 7.

The container casing 2 may be formed from a wide variety of materials and material compositions in a different arrangement to each other. In this case, both a single-layer and multi-layered design of the container shell 2 can be selected. This depends on the respective intended use of the packaging container 1.

Furthermore, it is possible to form the bottom and / or the closure component 4 from a processable by injection molding material and thereby form during the manufacturing process to the container shell 2. This requires that prior to the introduction of the injection molding material in the injection mold, not shown here before closing the same, the container shell 2 is inserted as part of the packaging container 1 in the mold cavity. Depending on the spatial shape of the packaging container to be produced, the container casing 2 is positioned in its preformed position within the mold cavity of the injection molding tool and subsequently thereto to form the bottom 3 and / or the closure component 4 and further components of the packaging container 1 to be described in more detail below Material injected. By this injection process, a molding of the softened and processed injection molding material to the container shell. 2

As can now be better seen in FIG. 2, in this exemplary embodiment selected here, at least one connecting web 8 is provided between the bottom 3 and the closure component 4. This extends continuously between the bottom 3 and the closure member 4 and thus forms a skeletal skeleton, which may also be referred to as a reinforcing frame or the like. Due to the fact that the container casing 2 has already been inserted into the injection molding tool for the shaping process, the components, such as the bottom 3 and / or the closure component 4 and / or the connecting webs 8, are molded onto the container casing 2. to avoid a subsequent deformation of the packaging container 1 after the production process, it is advantageous if a plurality of such connecting webs 8 are provided with respect to the longitudinal axis 5 and over the circumference of the packaging container 1, distributed. Thus, a symmetrical distribution around the longitudinal axis 5 has proven to be favorable. In the present embodiment, four pieces of such connecting webs 8 are provided. Depending on the spatial form and the receiving volume of the packaging container 1, the number of Austrian Patent Office AT 509 421 B1 2012-09-15

Connecting webs 8 are varied as desired. The less or less the number of connecting webs 8, the less material is used for the production of the injection molded part.

The connecting webs 8 shown here are arranged in this embodiment on one of the longitudinal axis 5 facing the inner surface 9 of the container shell 2. Regardless of this, it would also be possible to arrange the connecting web or webs 8 on an outer surface 10 of the container casing 2 facing away from the longitudinal axis 5. But it is also possible to provide the connecting webs 8 both in the region of the inner surface 9 and in the region of the outer surface 10. If the connecting webs 8 are provided both on the inner surface 9 and on the outer surface 10 of the container casing 2, the individual connecting webs 8 can be arranged either directly opposite to the inner surface 9 and outer surface 10 or offset from one another in the circumferential direction.

As can now be better seen in FIG. 6, in this depiction, for the sake of better clarity, the container casing 2 has been completely omitted so as to better describe the associated and one-piece component which has been produced in the injection molding process. This one-piece component here comprises the base 3, the connecting webs 8 and the closure component 4.

The bottom 3 is also formed here completely from the processable by injection molding material. In the exemplary embodiment shown here, the latter comprises a bottom wall 11 and a bottom edge section 12 which is arranged in the circumferential area of the bottom wall 11 and which is tubular and which faces the container shell 2.

To produce the molded part molded onto the container casing 2, it is provided here that the so-called injection point is selected in a center 13. So here both the bottom wall 11 and the bottom edge portion 12 is formed continuously from the processable by injection molding material. In order to save material or material for forming the bottom 3, in particular the bottom wall 11, should be found here with very small wall thicknesses Auslangen. The wall thickness can here be e.g. between 0.2 mm and 0.5 mm. Since the supporting and supporting function of the packaging container 1 is to take place through the container casing 2, in the components produced by injection molding, attention is only to be paid to their intended use, this sometimes only encompassing the tightness and some of the components no longer having any supporting function.

In order to achieve an optimal distribution of the introduced by injection molding material, should be provided in the bottom wall 11, starting from its center 13, at least one down to the bottom edge portion 12 extending web 14, which is an integral part of the bottom wall 11. Viewed from a cross-section, the web 14 has a size which is sufficient to spend the injection-molded, softened plastic material, starting from the injection point - here from the center 13 - towards the bottom edge portion 12 and subsequently to the connecting webs 8 and the closure member 4 can. Thus, the web 14 with respect to the remaining remaining bottom wall 11 to a greater thickness. The connection of the remaining remaining bottom wall 11 to the or the webs 14 can, as seen in the axial direction of the longitudinal axis 5, be chosen arbitrarily. It has proven favorable if the web or webs 14 project beyond the bottom wall 11 onto the side facing away from the closure component 4. It is thereby achieved that at the receiving space of the packaging container 1 facing side of the bottom 3, a planar formation of the same takes place. However, the web or webs 14 may also protrude beyond the bottom wall 11 on the side facing the receiving space or the further end region.

Furthermore, it can be seen from FIG. 6 that in the area of the bottom wall 11 of the bottom 3 a plurality of webs 14 are provided, which extend in a star shape or radially from the center 13 towards the bottom edge 12. Here again, a symmetrical with respect to the longitudinal axis 5 arrangement with respect to this seen over the circumference, advantageous. Likewise, the number of webs 14 should be equal to the number of connecting webs 8 selected. For a better distribution of the injection molding material, starting from the 8/29 Austrian Patent Office AT 509 421 B1 2012-09-15

Center 13 to ensure the components to be produced from the packaging container 1 is provided here that the web or bars 14 seen in the direction of the longitudinal axis 5, with respect to the or the connecting webs 8 are arranged circumferentially offset to these. With a number of four connecting webs and the same number of webs 14 of the offset between the individual webs 14 and the connecting webs 8 is formed at 45 °.

4, the connection of the bottom 3 is shown with its bottom edge portion 12 to the inner surface 9 of the container shell 2 in a larger scale. As described above, here, the bottom edge portion 12 is formed in the axial direction approximately tubular and formed together with the bottom wall 11 to the inner surface 9 of the container shell 2 during its production. Thus, the bottom edge portion 12 forms a connecting portion 15 between the container casing 2 and the component formed thereon - in the present example the bottom 3 - from. Furthermore, it can still be seen clearly that the container casing 2 next to the connecting portion 15 has an undeformed output thickness 16, whereas in the connecting portion 15, a wall thickness 17 of the container shell 2 by an extent in a lower limit of 5%, in particular 15%, and a upper limit of 80%, in particular 50%, with respect to the undeformed initial thickness 16 is reduced. However, this reduction of the wall thickness 17 with respect to the starting thickness 16 can also be formed in the region of the connecting webs 8 and in a further connecting portion 18 between the closure component 4 and the container shell 2, as best seen in FIG. 5. The closure member 4 is formed in this embodiment as part of the formation of a known seal closure and here comprises at least one annular shaped flange. The design of the closure member 4 as a seal seal is well known in the packaging containers hitherto produced by thermoforming. Therefore, the detailed description is omitted.

Furthermore, it can still be seen from FIG. 4 that the bottom wall 11, viewed in the axial direction, is arranged at a distance from the first end region 6 in the direction of the second end region 7. This forms a so-called hollow floor of the packaging container 1. By this measure, the appearance of the entire packaging container 1 can be made larger, for example, to provide a larger surface area by the container jacket 2 for printing or the like. The receiving volume of the packaging container 1 can then be varied depending on the distance from the first end region 6 here. The first end region 6 represents a footprint for the packaging container 1 and is formed by an end face 19 of the container shell 2, if appropriate in cooperation with the bottom edge portion 12. Thus, e.g. the bottom 3, in particular the bottom wall 11 between 1 mm and 5 mm or even more offset to the footprint of the packaging container 1 to be arranged inwards.

By the above-described reduction of the initial thickness 16 of the container shell 2, a compression zone is formed in this area, whereby the absorption of moisture in the region of the end face 19 of the container shell 2 is minimized or even avoided. In most cases, the end face 19 is an unprotected cutting edge, which, if the material of the container casing 2 is suitably selected, is otherwise subjected to moisture absorption unprotected.

As can be seen again better from Fig. 2, the container shell 2 is usually formed from a planar blank, which is erected, wound or rolled to form the packaging container 1 according to its room shape to be produced in this preformed position or position to be introduced or inserted into the injection mold.

As a planar blank, the container casing 2 end portions 20, 21, which are arranged after erecting in a mutually opposite position. Is an exclusive connection of the two end portions 20, 21 by one of the components previously described and produced in the injection molding process (bottom 3, closure member 4 and 9/29 Austrian Patent Office AT 509 421 B1 2012-09-15

Connecting web 8) provided, they are held to each other in position or connected to each other.

In Fig. 7, the two end portion 20, 21 are shown in a sectional plane in a vertical orientation with respect to the longitudinal axis 5, wherein here on the inner surface 9 of the container shell 2, a connecting web 8 is shown, which the two end portions 20, 21 in vertical direction to the longitudinal extent covers. In accordance with the selected length of the blank to form the container shell 2, the two end portions 20, 21 may be aligned in immediately opposite and abutting position. The more accurately the circumferential length of the container jacket 2 is formed, the lower the formation of the gap between the mutually facing end portions 20, 21st

Regardless, it would also be possible to form the container casing 2 again as a flat blank and in its erected state, the mutually immediately adjacent end portions 20, 21 to connect with each other. This could be done for example by a so-called overlap impact, in which the two end portions 20, 21 overlap in the circumferential direction. In the interconnected state of the container casing 2 is then formed, which can be inserted into the injection mold, not shown, and then the complete packaging container 1 is completed by injection molding of the components described above.

Regardless, it would also be possible that the skeletal or frame-shaped component is formed from the injection molding material and then clad only with the container shell 2. In this case, the container shell 2 can be preformed as a jacket-shaped component and then joined together with the injection molded part. Furthermore, but could also prepare the formation of the container shell 2 blank in a winding or. Rolling be applied to the skeletal or frame-shaped component of the injection molding material. Depending on the selected joining process can then be necessary to bond between individual components.

FIGS. 8 and 9 show a further embodiment of the packaging container 1, which is possibly independent of itself, wherein the same reference numerals or component designations are used again for the same parts as in the preceding FIGS. 1 to 7. In order to avoid unnecessary repetition, reference is made to the detailed description in the preceding Figs. 1 to 7 or reference.

Basically, the packaging container 1 shown here corresponds to that, as has already been described previously in FIGS. 1 to 7. This packaging container 1, in turn, also comprises the container casing 2, the bottom 3, the closure component 4 and the end regions 6, 7 distanced from one another in the direction of the longitudinal axis 5. In the region of the first end region 6, the bottom is again provided, which may correspond to that design. as previously described in Figs. 1-7.

In contrast to the previously described embodiment, the closure member 4 is not formed as part of a seal seal with a sealing flange, but is in the form of a container collar 22. The container collar 22 in turn is approximately tubular and extending in the direction of the longitudinal axis 5 extending. This has on its side facing away from the longitudinal axis 5 outside parts of a snap closure, namely on the surface projecting locking elements 23. This makes it possible, for example, to snap open a lid or the like and, if desired, to provide it with an opening guarantee band or the like. But it would also be possible to provide the locking element or the 23 on the longitudinal axis 5 facing the inside of the container collar 22 and also form on both sides of the container collar 22. This depends on the selected closure.

Regardless of or in addition to this, it would also be possible to simultaneously form a closure element 24, for example in the form of a lid or the like, in the course of the injection molding process. The connection can be made to the closure component 4 in the region of a radially projecting flange 25, as indicated in dashed lines in FIG. 9. The cover formed here as a closure element 24 may be connected or coupled to the closure component 4, in particular its flange 25, for example via a type of film hinge or the like.

FIGS. 10 to 12 show a further embodiment of the packaging container 1, which may be independent of itself, wherein the same reference numerals or component designations are used again for the same parts as in the preceding FIGS. 1 to 9. To avoid unnecessary repetition, reference is made to the detailed description in the preceding Figs. 1 to 9 or reference.

This packaging container 1, in turn, also comprises the container casing 2, on which the bottom 3, the closure component 4 and the connecting webs 8 are integrally formed thereon by injection molding. Since this packaging container 1 shown here is formed almost identical to that, as has been described in FIGS. 1 to 7, the similar components will not be discussed in more detail.

The components formed from the injection molding material, namely the bottom 3, the closure member 4 and the connecting webs 8 are in turn formed in a single operation directly to the container shell 2. The closure member 4 is here in the region of the second end portion 7 in the form of a flange 26 which is formed in the circularly formed here packaging container 1 almost completely over the entire circumference with the same flange width continuously. In addition, it is indicated here even in the region of the closure component 4 that an additional tab 27 is provided on the flange 26 in the upper open end region 7. The tab 27 is penetrated by an opening 28. Thus, the tab 27 with its opening 28 serve to hold the entire packaging container 1, for example, on a rod-shaped or hook-shaped holding element, which is not shown here, for the presentation there. In this embodiment shown here, the tab 27 extends approximately in parallel alignment with respect to the container shell 7 and almost in the same direction with respect to the longitudinal axis. 5

As can now better be seen from FIG. 12, additional stacking means 29 are provided in each case in the region of the individual connecting webs 8, which are bar-shaped and protrude starting from the connecting webs 8 in the direction of the longitudinal axis 5. These can be formed during the injection molding process simultaneously with the other components also produced in the injection molding process. These serve in a known manner for nesting of similarly shaped packaging containers 1. The stacking means 29 may also be formed by partial projections, lugs, cams or the like. It is also the arrangement in the region of the connecting webs 8 is not mandatory.

Furthermore, an additional bead 30 is formed in the transition region between the tab 27 and the peripheral flange 26. This bead 30 can, as indicated in FIG. 12, serve as a contact surface of packaging containers 1 stacked one inside the other so as to avoid additional, mutual entanglement or jamming.

FIGS. 13 to 15 show a further embodiment of the packaging container 1, which may be independent of itself, wherein the same reference numerals or component designations are used again for the same parts as in the preceding FIGS. 1 to 12. To avoid unnecessary repetition, reference is made to the detailed description in the preceding Figs. 1 to 12 or reference.

This packaging container 1 shown here is approximately the same design, as has been previously described in FIGS. 10 to 12. The spatial form or cross-sectional shape of the packaging container 1 with respect to the longitudinal axis 5 seen here is selected to be different from each other here between the first end portion 6 and the second end portion 7. Thus, for example, the cross-sectional shape in the region of the bottom 3 may be formed circular, wherein, however, in the open end region 7, an approximately oval cross-sectional shape is selected. In the region of the end region 7 which is open here, in turn, the closure component 4 is shown in simplified form, which comprises the flange 26, which is designed to run almost peripherally. At its outer edge region, in turn, the previously described tab 27 is provided. Again, this can be provided in the region of the tab 27 an opening 28 passing through this.

In addition, it is also shown in FIG. 13 that the packaging container 1 can be closed by a cooperation of the closure component 4 with a lid 31 in the manner of a snap closure. For the tamper-evident, in turn, correspondingly formed separating strips or the like can be provided.

The arrangement and design of the bottom 3 and the connecting webs 8 between the bottom 3 and the closure member 4 can be carried out analogously to one of the embodiments described above according to FIGS. 1 to 12, wherein any combination of the individual components can be done with each other ,

In all the embodiments of the packaging container 1 described here, it is provided that the introduction of the processable by injection molding material in the center 13 of the bottom 3 takes place. The distribution of the injection-moldable material in the region of the bottom wall 11 is usually via the extending between the center 13 and the bottom edge portion 12 webs 14 toward the bottom edge portion 12. The webs 14 can also be referred to as Flieshilfsstege, which in addition to the entire stiffening or Reinforcement of the bottom wall 11 serve. Due to the previously described circumferential displacement of the webs 14 in the bottom 3 with respect to the connecting webs 8, a continuous filling of the mold cavity takes place in the region of the bottom edge section 12 until the injection molding material reaches the connecting webs 8. Subsequently, the injection molding material is forwarded via the connecting webs 8 to the closure component 4, in which case a circumferential filling of the mold cavity to form the closure component 4 takes place. Depending on the selected cross-sectional shape of the mold cavity, the forwarding of the injection molding material is determined. In order to use a minimum amount of injection molding material in relation to the container casing 2, attempts are made to find the way with the smallest possible cross-sectional areas for forwarding or forming the bottom 3, the closure component 4 and the connecting webs 8.

As an example of the material savings on the injection molding material used here briefly an example is given. In one dimension of a packaging container 1 with a diameter in the region of the open end region 7 of about 105 mm and a height of 108.5 mm with conical design of the container shell 2, this results in the injection molding process with a wall thickness of 0.6 mm and a snap closure trained closure member 4 has a total mass of 22.7 g. The same embodiment of the packaging container 1, but with a smaller wall thickness of 0.3 mm, this leads to a total mass of 15 g. If a large part thereof is omitted in the region of the container casing and only a few connecting webs 8 are formed between the bottom 3 and the closure component 4, the total thickness of the connecting webs 8 decreases with a wall thickness of 0.6 mm to 10 g of the injection molding material used.

This approach for reducing the total mass of the packaging container 1 to injection molding material is, inter alia, still an essential goal for the design of the packaging container 1 described herein. So should a mass fraction of the container shell 2 with respect to the total mass of the packaging container 1 in any case greater than 50 % be.

The main component of the container shell 2 should be selected from biodegradable or recyclable materials, such as paper and / or cardboard formed from cellulose. This main component of the container jacket 2 can also be referred to as a carrier layer or base layer. The container casing 2 may, however, also have a multilayer or multi-layer structure, these layers or layers being attached both to the inner surface 9 of the container casing 2 facing the longitudinal side 5 and / or to the outer surface 10 of the container casing 2 facing away from the longitudinal side 5 - 12/29 Austrian Patent Office AT 509 421 B1 2012-09-15 may be ordered or applied.

Depending on the intended use of the packaging container 1, it can serve for receiving or packaging foods, hygiene articles, toiletries, cleaning agents or detergents. The foods may be milk and / or milk products, cream, juice, alcoholic beverages, dry food or liquid foods. Depending on the component of the packaging container 1 to be picked up and packaged, it may also have the following packaging properties for the packaged products, such as aroma protection, impermeability to fats, opacity, UV protection or oxygen impermeability. Furthermore, the entire packaging container 1 should also be heatable in an oven or the like and thus be formed as a total heat-resistant. If, for example, hot drinks are filled, care must also be taken to ensure that the packaging as a whole can be easily touched or handled. An essential aspect of the entire packaging container 1 is also that this is recyclable or compostable as a whole. For this purpose, the respective materials used should be selected according to these requirements.

Further layers of the container casing 2 in addition to the carrier layer formed predominantly of paper or cardboard may be, for example, metal foils, plastic films and optionally adhesive and binding materials. The plastics may be selected, for example, from the group of materials such as polymers, polyamides, styrenes, olefins, polyalkylene terephthalate, polylactide, polyester or any combination and mixture thereof. The polymeric materials include, for example, low density polyethylenes (PE-LD), low density polyethylenes and pigments incorporated therein, low density polyethylenes modified with maleic anhydride, high density polyethylenes (PE-HD), polypropylene (PP). The styrenes include, for example, polystyrenes (PS). Examples of alkyl acrylates include ethylvinyl alcohol (EMA). The olefins include, for example, the polyolefin (PO). Finally, for example, among the polyalkylene terephthalates the material polyethylene terephthalate (PET).

In the simplest case, a PE coating, for example in the form of a film, is applied to the carrier material formed from paper or board, in order to make possible a connection of the injection molding material. In this case, the coating can be applied only in sections, where the injection molding material is formed. On the outer surface 10 and / or the inner surface 9, a printed image not described in detail is preferably applied in a known manner. The total starting thickness 16 of the container casing 2 may be on the order of 0.2 mm, in particular 0.3 mm, and 1 mm, in particular 0.5 mm. Furthermore, it is also possible in the area of the container shell 2 embossments, such as logos, 3D characters or the like. Form. These can be formed either before inserting the blank to form the container shell 2 or even during the injection molding process by the injection molding tool and / or the injection molding process.

The material which forms the bottom 3 and / or the closure component 4 and / or the connecting web or webs 8 is to be selected such that it can be processed by injection molding. For example, plastics and compostable materials or the like have proven themselves. Thus, for example, polypropylene (PP), polyamide (PA), polystyrene (PS), polycarbonate (PC) and unspecified further here, sprayable materials can be used here. As the cycle time for the injection molding operation of such a packaging container, a period between 2 seconds and 6 seconds, in particular between 3 seconds and 4 seconds is selected.

From the components described above for the formation of individual layers or layers of the container shell 2 and also the processable by injection molding materials, these are summarized here overview once again. These include polymers, polyamides, ethylvinyl alcohol, ketene dimers, styrenes, olefins, sulfates, alkyl acrylates, adhesives, binders, polyalkylene terephthalates, polylactides and polyesters.

In the following FIGS. 16 to 19, possible arrangements and / or different layer structures of the container casing 2, each of which may be separate for itself, are shown, whereby these arrangement possibilities are only exemplary for one Variety of possible material combinations is.

Thus, in FIG. 16, a first embodiment is shown, in which case a carrier layer 32 made of a fibrous layer, such as cardboard or paper, is shown with a greater wall thickness or layer thickness.

In the area of later forming the outer surface 10 side of the support layer 32, starting from the outer surface 10, two further layers by the reference numerals 33 and 34 marked. In this case, the outermost layer 33 may be a layer of a polymeric material, as has already been described hereinbefore. The carrier layer 32 closer lying further layer 34 may also be formed of a polymeric material in which additionally pigment dyes are included. For example, these pigment dyes may be white.

On the side facing away from the support layer 32 side of the outer surface 10 further layers or layers, starting from this with the reference numerals 35 to 39 are shown. The layer 35 is made of a polyamide, the layer 36 of an ethylvinyl alcohol, the layer 37 of a polymer, the layer 38 of a polypropylene optionally mixed with pigment dyes and finally the layer 39 in turn formed from a polymer.

FIG. 17 shows a further possible embodiment of a multi-layered or multi-layered container casing 2, wherein in turn the carrier layer having a greater thickness is designated by the reference number 32. This here comprises a sulfate, which additionally comprises a chemical-thermo-mechanized pulp. In the region of the outer side 10, a layer 40 made of a sulfate is applied to the carrier layer 32. Starting from the carrier layer 32 towards the inner surface 9 of the container shell 2 further layers 41 to 43 are arranged here. Thus, the layer 41 is formed of a sulfate, the layer 42 of a biodegradable polyester and finally the layer 43 of a polylactide.

In the layer structure of the container casing 2 shown in FIG. 18, in turn, the carrier layer 32 having a greater wall thickness is formed from a fibrous material, such as a cardboard or paper. Starting from the outer surface 10, the container casing 2 here still comprises the two layers 44, 45. The outermost layer 44 is here made of a low-density polyethylene (PE-LD) and the layer 45 of a high-density polyethylene (PE -HD). Starting from the carrier layer 32 toward the inner surface 9, the two layers 46 and 47 are arranged. In this case, the layer lying closer to the carrier layer 32 is likewise formed from a high-density polyethylene (PE-HD) and the further layer 47 from a low-density polyethylene (PE-LD).

Finally, another possible layer structure of the container casing 2 is shown in FIG. 19, which in turn comprises the carrier layer 32 having a greater wall thickness and additional layers 48 to 52. The outer surface 10 facing layer 48 is formed from a low density polyethylene (PE-LD). The further layers starting from the carrier layer 32 toward the inner surface 9 are formed here by a polyamide layer 49, an ethylvinyl alcohol layer 50, an adhesive layer 51 and a layer 52 made of a low-density polyethylene (PE-LD).

In all the above-described layer structures of the container shell 2, an unspecified printed image can also be arranged at any position or position to ensure the labeling of the packaging container 1 in conjunction with the container shell. Since the nature and attachment of the printed image not shown here is well known, this will not be described in detail.

FIG. 20 shows a further embodiment of a partial region of the packaging container 1, which may be independent of itself, again with the same reference numerals or component designations as in the preceding FIGS. 1 to 14/29 Austrian Patent Office AT 509 421 B1 2012-09-15 19 be used. In order to avoid unnecessary repetition, reference is made to the detailed description in the preceding figures 1 to 19 or reference.

The detail shown here in the first end 6 shows a further possibility for connecting the bottom 3 to the container shell 2. In order to achieve a better and more jointless connection of the bottom 3, in particular its bottom edge portion 12, in the here lower and the longitudinal axis 5 facing inner Region of the container shell 2 before molding the bottom 3 a chamfer 53 shown in dotted lines, such as a phase or the like, are formed. This can be done for example by appropriate removal of material on the container shell 2. If already applied layer material of the container casing 2 is removed again, care must be taken to ensure a proper connection between the injection-molded material for the formation of the components and the container casing 2.

Again, there is again a reduction of the initial thickness 16 of the container shell 2 in dependence on the selected inclination of the chamfer 53. Furthermore, it is shown here that the bottom wall 11 in the axial direction distances to the end face 19 of the container shell 2 in the direction of the second End area 7 is possible.

FIG. 21 shows a further embodiment of a partial region of the packaging container, which may be independent of itself, in its bottom region, again using the same reference numerals or component designations for the same parts as in the preceding FIGS. 1 to 20. To avoid unnecessary repetition, reference is made to the detailed description in the preceding figures 1 to 20 or reference.

In this embodiment shown here, the bottom 3 projects beyond the end face 19 of the container shell 2 on the side facing away from the second end portion 7 side. The bottom 3, in turn, in turn comprises the relatively thin bottom wall 11 and the approximately tubular bottom edge portion 12. The bottom edge portion 12 is in turn connected to the container shell 2. Also in this embodiment shown here, the initial thickness 16 of the container shell 2 in the connecting section 15 is again reduced by the integrally formed bottom edge portion 12.

By overlapping or under grasping the end face 19 of the container shell 2, an open end edge or end face 19 is avoided in this section. This prevents the ingress or ingress of moisture.

FIG. 22 shows a further embodiment of a partial region of the packaging container, which may be independent of itself, in its jacket region, again using the same reference numerals or component designations for the same parts as in the preceding FIGS. 1 to 21. In order to avoid unnecessary repetition, reference is made to the detailed description in the preceding figures 1 to 21 or reference.

As already described in FIG. 7, it is also shown here that the two mutually facing end sections 20, 21 overlap circumferentially. This makes it possible that a connecting web 8 is also arranged in this overlapping region and by this the mutual fixation of the two end portions 20, 21 takes place. The previously described compression of the container casing 2 is again carried out, whereby a nearly planar surface is formed on the outer surface 10. At a compression of 50%, the overlapping end portions 20, 21 have the previously described undeformed initial thickness 16 of the container shell 2.

For the sake of order, it should finally be pointed out that for a better understanding of the construction of the packaging container 1, this or its components have been shown partially unevenly and / or enlarged and / or reduced in size.

The problem underlying the independent inventive solutions can be taken from the description. 15/29

Claims (16)

Austrian Patent Office AT 509 421 B1 2012-09-15 REFERENCE MARKET DESCRIPTION 1 Packaging container 31 Lid 2 Container jacket 32 Support layer 3 Bottom 33 Layer 4 Closure component 34 Layer 5 Longitudinal axis 35 Layer 6 End region 36 Layer 7 End region 37 Layer 8 Connecting web 38 Layer 9 Inner surface 39 Layer 10 Outer surface 40 Layer 11 Bottom wall 41 Layer 12 Bottom edge section 42 Layer 13 Center 43 Layer 14 Bar 44 Layer 15 Connecting section 45 Layer 16 Starting thickness 46 Layer 17 Wall thickness 47 Layer 18 Connecting section 48 Layer 19 End face 49 Layer 20 End section 50 Layer 21 End section 51 Layer 22 Container collar 52 Layer 23 latching element 53 bevel 24 closure element 25 flange 26 flange 27 tab 28 opening 29 stacking means 30 bead Patent Claims 1. Packaging container (1) comprising a container casing (2) which distanced from one another in the direction of a longitudinal axis (5) e and second end regions (6, 7) and a carrier layer of the container shell (2) made of cellulose, such as paper or cardboard, is a related, skeletal one-piece component made of an injection-processable material, the component being made of a bottom (3 ) disposed in the portion of the first end portion (6), a shutter member (4) disposed in the portion of the second end portion (7) and at least one formed continuously between the bottom (3) and the shutter member (4) Connecting web (8) is formed, wherein the bottom (3), the closure member (4) and the at least one connecting web (8) are formed together and adjacent to the container shell (2), characterized in that of the total mass of the injection molding material as well as the container shell (2) formed packaging container (1) is a mass fraction of the container shell (2) to the proportion of the injection molding material is greater than 50%. 2. Packaging container (1) according to claim 1, characterized in that in a connecting portion (15, 18) between the container casing (2) and the molded-on component (16). 3, 4) a wall thickness (17) of the container shell (2) is reduced to an extent in a lower limit of 5%, in particular 15%, and an upper limit of 80%, in particular 50%, with respect to its undeformed initial thickness (16) , 3. Packaging container (1) according to claim 1 or 2, characterized in that the closure member (4) is selected from the group of seal closure, screw cap, snap closure. 4. Packaging container (1) according to claim 1 or 2, characterized in that the bottom (3) comprises a bottom wall (11) and a tubular and the container shell (2) facing bottom edge portion (12) and both the bottom wall (11) as Also, the bottom edge portion (12) are formed continuously from the processable by injection molding material. 5. Packaging container (1) according to one of the preceding claims, characterized in that the bottom wall (11) starting from a center (13) at least one down to the bottom edge portion (12) extending web (14), wherein the web (14 ) has a greater thickness with respect to the remaining bottom wall (11). 6. Packaging container (1) according to one of the preceding claims, characterized in that the bottom wall (11) seen in the axial direction is spaced from the first end region (6) towards the second end region (7). 7. Packaging container (1) according to any one of the preceding claims, characterized in that with respect to the longitudinal axis (5) and over the circumference more of the connecting webs (8) are provided. 8. Packaging container (1) according to one of the preceding claims, characterized in that on at least one of the connecting webs (8) in the direction of the longitudinal axis (5) projecting stacking means (29) is formed. 9. Packaging container (1) according to one of the preceding claims, characterized in that the one or more connecting webs (8) on one of the longitudinal axis (5) facing the inner surface (9) of the container shell (2) are arranged. 10. Packaging container (1) according to one of the preceding claims, characterized in that the one or more connecting webs (8) on one of the longitudinal axis (5) averted outer surface (10) of the container shell (2) are arranged. 11. Packaging container (1) according to one of the preceding claims, characterized in that the one or more starting from the center (13) of the bottom wall (11) extending webs (14) in the direction of the longitudinal axis (5) with respect to the or the connecting webs ( 8) are arranged circumferentially offset. 12. Packaging container (1) according to one of the preceding claims, characterized in that the processable by injection molding material from the group of polypropylene (PP), polyamide (PA), polystyrene (PS), polycarbonate (PC) is selected. 13. The packaging container (1) according to any one of the preceding claims, characterized in that the container casing (2) before forming one of the components (3, 4, 8) is formed as a planar blank and in its erected condition immediately adjacent end portions (20 , 21) are aligned in a mutually opposite position and the connecting web (8) covers the two end portions (20, 21) in the direction perpendicular to their longitudinal extension. 14. Packaging container (1) according to one of the preceding claims, characterized in that the container casing (2) is formed as a planar blank prior to molding one of the components (3, 4, 8) and in its erected state each other immediately adjacent end portions (20 , 21) are interconnected. 17/29 Austrian Patent Office AT 509 421 B1 2012-09-15 15. Packaging container (1) according to any one of the preceding claims, characterized in that the container casing (2) at least one component selected from the group of aluminum, polymers, polyamides, ethylvinyl alcohol, Ketendimere, styrenes, olefins, sulfates, alkyl acrylates, adhesives, binders , Polyalkylene terephthalate, polylactides, polyester. 16. Packaging container (1) according to one of the preceding claims, characterized in that the container casing (2) has a multilayer layer structure. For this 11 sheets drawings 18/29