WO2010133212A1

WO2010133212A1 - Packaging container for solid matter

Info

Publication number: WO2010133212A1
Application number: PCT/DE2010/000557
Authority: WO
Inventors: Christian Piotrowski
Original assignee: Vita Pak Ug
Priority date: 2009-05-16
Filing date: 2010-05-17
Publication date: 2010-11-25

Abstract

The invention relates to a packaging container for solid foods that can be emptied, wherein the packaging container is composed of an inner shaping bag providing stability and an outer jacket, wherein the outer jacket forms only part of the outer surfaces of the packaging container, i.e. the outer jacket has cut-outs making the inner bag partly visible. The inner bag is preferably connected or glued to the outer jacket only locally and not over the entire surface. The inner bag is preferably brought into the intended shape thereof by filling it with gas and thereby becomes dimensionally stable and stackable.

Description

Packaging container for solids

description

The invention relates to a packaging container for solid foodstuffs to be emptied, the packaging container consisting of an inner forming and stabilizing bag and an outer jacket, the outer casing forming only a part of the outer surfaces of the packaging container, i. the outer shell has recesses so that the inner bag is partially visible. Preferably, the inner bag is only selectively and not fully bonded or glued to the outer shell. Preferably, the inner bag is brought by filling with gas in its predetermined shape and thereby dimensionally stable and stackable.

From the prior art containers are known which are made of several different materials. Thus, DE 69910428 T2 describes a packaging container made of polyethylene and aluminum with a laminated tubular multilayer packaging material.

Since separation of a packaging container made of a plurality of different materials into its base materials is extremely expensive for recycling, there is a great need to provide packaging containers made of only a very few materials and components, thus providing quick and resource-efficient recycling into the recycle cycle.

Although conventional packages for Com flakes, for example, are easy to separate, because the inner bag is not connected to the outer carton, but have the disadvantage that the inner bag collapses upon removal and only with difficulty and without damage or Shredding the contents into the carton is to get. In addition, the stability of the packaging is made only by the outer carton, so that relatively much packaging material is needed.

The object of the present invention is now to provide a packaging container for solid food available, which allows for easy return to the recycling cycle and a more cost-effective production and also stable stackable. This object is achieved by the technical teaching of the independent claims. Advantageous embodiments of the invention are specified in the dependent claims, the description, the figures and the examples.

The invention thus relates to a recyclable and stackable packaging container for emptying solids comprising an inner forming and stabilizing bag and an outer jacket, wherein the outer jacket forms only a part of the outer surfaces of the packaging container.

The term "stackable" as used herein refers to the stackability of pallets. In this case, when using 2 pallets, these can be loaded with up to 8 layers of packaging containers (vertical or horizontal) one above the other. Alternatively, 3 to 5 pallets with up to 5 layers of packaging containers (vertical or horizontal) can be stacked on top of each other. In this case, the packaging containers are not packaged again in a cartons, which would then be stacked as a whole on the pallets. However, but not necessarily in this sense, repacking or shrink wrapping are each 6 (6 x 1 or 3 x 2) or 12 (12 x 1, 6 x 2 or 3 x 4) packaging containers. The packaging containers on the lower pallets or the bottom pallet must not be damaged in such a way that they are considered scrap or can no longer be sold in a retail store. The pallets, which are used to test the stackability, have EURO standard ("Euro pallets").

The term "recyclable" as used herein refers to the property of the packaging containers according to the invention recycled by the end user, ie to be separated. The packaging containers of the invention are easily recyclable, because they consist of only two types of material, namely preferably a cardboard or cardboard and on the other hand a plastic, both materials are easily separable connected to each other. As non-recyclable apply solid and above all over the entire surface glued together systems such as laminates, which are used for example in the known Tetra Pak ^® packaging. The term "recyclable" therefore refers to the separability of inner bag and outer jacket by the consumer. The term "deflatable" as used herein refers to solid foods which are present as granules, flakes, crumbs, chips, sticks or the like and are preferably not pressure stable, ie require an outer jacket to be protected from damage and also not to a Pieces such as butter but in many individual parts. A good example of emptying solid foods are Com flakes, which are sold in a non-dimensionally stable inner bag with an outer carton completely surrounding this bag. Without the outer carton, the Com Flakes bags could not be transported because the contents would break and the Com flakes would be broken up into many small pieces and without the inner bag, the Com flakes would not be sufficiently protected from moisture, dirt or falling out of the outer jacket.

The present invention now offers the distinct advantage that the shape and stability of the package is also determined by the inner bag, whereby the outer jacket, which is the most expensive on the entire package, no longer has to completely surround the inner bag. Thus, a material saving on the outer shell can be made by eliminating whole surfaces of the outer shell or at least parts of surfaces (ie bottom surface, top surface, side surfaces) of the outer shell can be recessed, whereby significant savings in manufacturing costs are achieved without a qualitatively inferior To accept packaging. On the contrary, the packaging container according to the invention offers the advantage compared to the conventional packaging that the inner bag does not collapse or collapse after the first opening and is difficult to re-insert into the outer jacket, i. to get the outer carton. Another advantage is the easy recyclability and the conservation of the environment through material savings.

As used herein, the term "molding" refers to the property of the inner bag when fully inflated and / or inflated and / or under pressure to substantially conform to the shape of the outer skirt. The inner bag is therefore not like a bag, but already has a predetermined shape when the inner bag has been filled and produced ready for sale.

The term "stability-providing" as used herein refers to the property of the inner bag to the stability and hence the stackability of the inner bag contribute to the packaging container according to the invention or contribute substantially, so that the stability is not exclusively or only subordinate determined by the outer jacket. The inner bag is then "stabilizing" when it is completely filled and / or inflated and / or pressurized. After the initial opening, the stability-giving property is lost, while the shaping property is still partially preserved.

In contrast to the known cornflake packaging or similar packaging for flake-like, chip-like or flake-like solid foods, the packaging containers according to the invention have the advantage that the inner bag neither sags when opening in the outer shell and then poorly empty and poorly at emptying Even after the inner bag has been removed, the inner bag can collapse and then only be put back into the outer jacket with difficulty, for easier emptying and dosing, without breaking the contents.

When packaging container according to the invention, the inner bag remains connected in a few places with the outer shell even after opening and can therefore be emptied easier and easier to dose during emptying. The separation of outer coat and inner pouch will only be complete

Emptying for disposal instead.

A preferred way to make a recyclable and stackable packaging container is the use of gas. Here, the inner bag is filled with the emptying solid and a gas and sealed pressure stable. The gas builds pressure in the sealed inner bag so that the faded inner bag gives the packaging container a regular stackable shape.

This embodiment thus relates to a recyclable, stable and stackable packaging container in which the inner bag is filled with the emptying solid with a gas and pressure-tight and the gas in the closed inner bag pressure builds up, so that the lost inner bag the packaging container a regular lends stackable shape.

In this context, "pressure-stable" means that the internal pressure prevailing in the inner bag essentially exceeds that Durability of the bag contents is maintained, so that the shape of the inner bag and the stackability are maintained as long as the inner bag is not opened for the purpose of emptying the contents.

In addition, it is preferred if the inner bag is only partially connected to the outer jacket.

Essential to the invention is that by filling the inner bag with a gas, preferably under pressure, the inner bag is filled so bulging that this results in a good stackability of the packaging container. It is important that the inner bag is already preformed so that it assumes the shape of a stackable body preferably a completely stackable body in the fully filled state such as a cube, cuboid or other rectangular container, which is characterized by the parameters length, height and Width can be displayed.

Since the inner bag is made of a flexible material and preferably of a plastic, the inner bag in the partially or completely deflated state no longer has a regular and no easily stackable shape. When fully filled, the inner bag then assumes the predetermined shape and becomes stackable. A mold can be obtained by appropriate Verschweißtechniken and Verschweißmuster of any plastic bags. It will be understood by those skilled in the art that no ideal shapes are desired or obtained, such as a cube having exact right angles and exact edge lengths. Nevertheless, regular forms can be obtained very well by appropriate welding in the production of the inner bag, when the inner bag is then completely filled or inflated. Therefore, pillow bags may also be folded or welded so that they have a desired shape, e.g. cuboid, suppose.

In other preferred embodiments gusseted bags are used. These in turn preferably have on the vertical side surfaces a centrally mounted fold edge.

If one were to fill and close such a preformed inner bag completely with water, then one would have, for example, a cuboid bag of water and such completely filled preformed and shaping bags are already very easily stackable in this form. If, instead of a liquid, a solid bulk material is filled into the inner bag as an emptiable solid, then as a rule this solid is no longer able to completely fill the inner bag, resulting in the predetermined shape in a well stackable design.

These emptying solids include, for example, all types of flakes, chips, granules, granules or the like, such as e.g. Com flakes, muesli, oatmeal, dried pods, spices, bay leaves, petals, beans, peas, lentils, cloves, capers, nuts, raisins, citron, olives, peanuts, flaxseed, candied fruit, candy, spices, spice leaves, teas, herbs , Bay leaves, rose petals, dried plant parts, roots, nutmegs, dried parsley, etc.

If, for example, you fill com flakes into the inner bag, the Com flakes can not expand the preformed inner bag in such a way that the well-stackable predetermined shape results. According to the invention, the inner bag is then filled with the solid bulk material and then with a gas such as air, nitrogen, argon, helium, carbon dioxide, xenon, krypton, nitrogen oxides such as N ₂ O or mixtures of the previous gases such as Tycon 18 (82%). Argon / 18% CO ₂ ), C-50 (50% argon / 50% CO ₂ ), C-40 (60% argon / 40% CO ₂ ), C-25 (75% argon / 25% CO ₂ ), C-20 (80% argon / 20% CO ₂ ), C-15 (85% argon / 15% CO ₂ ), C-10 (90% argon / 10% CO ₂ ), C-5 (95% argon / 5% CO ₂ ), O-5 (95% argon / 5% O ₂ ), O-2 (98% argon / 2% O ₂ ), O-1 (99% argon / 1% O ₂ ), A- 25 (75% argon / 25% helium), A-50 (50% argon / 50% helium), A-75 (25% argon / 75% helium), H-2 (98% argon / 2% hydrogen), H-5 (95% argon / 5% hydrogen), H-10 (90% argon / 10% hydrogen), H-35 (65% argon / 35% hydrogen) was inflated to its predetermined final shape. The gas in the inner bag has at least atmospheric pressure and preferably a pressure which is between atmospheric pressure and two atmospheric pressure.

The filling with gas can be carried out by all conventional methods of the prior art.

Thereby, the external pressure acting on the inner bag, e.g. by stacking, intercepted by the gas in the inner bag and not by the pourable solid in the bag.

Depending on the nature of the contents may be in the course of storage and / or use of the filling itself gaseous substances, for example, at Fermentation processes. This additional gas also contributes to build-up of pressure in the inner bag. Therefore, if necessary, the pressure for the filling with gas and / or the material of the inner bag must be selected such that it is not gas permeable by additional gas evolution in the inner bag or is impaired in its shaping properties, for example burst or bulge.

On the one hand, this gas filling for emptying solids-filled inner bags does not damage the solids in the bag and, on the other hand, causes the inner bag to assume its predetermined shape, e.g. Cuboid shape or cube shape. The so filled with solids and filled with gas inner bag have a clear geometry, do not collapse and are stable stackable. Thus, such sealed and filled with gas inner bag can be stacked in original packaging, so in the factory delivered form easily stacked. This results in stable, inexpensive and well stackable packaging containers.

In the end consumer, the inner bag loses its shape and the stackability after opening by escaping of the gas, which at this time but no longer needed.

According to the invention, this inner bag can be provided with an outer jacket, with the outer jacket, usually a cardboard box, no longer having or having to carry out a supporting and stabilizing task. Rather, the outer jacket is used for affixing price tag, product information and advertising and gives the entire packaging container an even clearer shape and exact edge dimensions. This outer jacket can be significantly thinner than conventional paperboard packages, because it no longer has a supporting function, whereby up to 20%, preferably up to 30% and particularly preferably up to 40% material can be saved. In addition, the outer shell no longer needs to completely surround the inner pouch, portions or even entire areas may be completely eliminated so that the inner pouch is visible on the exposed surfaces of the outer shell.

For easy material separation is also preferred if the inner bag is not fully connected to the outer shell. Not connected to the entire surface means that the entire outer surface of the inner bag does not interfere with the Inner surface of the outer shell is connected, in particular not glued or welded.

The outer shell, preferably of cardboard or plastic, has at least three of the following surfaces, namely bottom surface, top surface, two side surfaces (left side surface, right side surface), front surface and back surface. The at least three surfaces of the outer shell preferably cardboard or plastic selected from the bottom surface, top surface, left side surface, right side surface, front surface and back surface are connected to each other via an edge. By this outer jacket preferably cardboard or plastic, the inner flexible bag is at least partially enclosed and is connected by the described punctiform, strip-shaped, linear, wave-shaped and / or circular bonding with the outer shell preferably cardboard or plastic. The outer shell contributes to the stabilization of the packaging container and is therefore also referred to as a stabilizing jacket preferably stabilizing cardboard or stabilizing plastic.

The embodiment thus relates to a recyclable and stackable packaging container in which the inner bag is only partially connected to the outer jacket and the outer jacket forms only a part of the outer surfaces of the packaging container.

The term "linear" as used herein includes not only straight lines but also arbitrary curves, circles, waves, zigzag shapes, and the like. The inner shaping and stabilizing bag is punctiform or linear connected at 1 to about 100, preferably 10 to 50 places with the outer shell.

In preferred embodiments, each of the at least three faces of the outer stabilizing carton is less than 20% of the respective area, more preferably less than 15% of the respective area, more preferably less than 10% of the respective area, even more preferably less than 7% of the respective area, even more preferably less than 5% of the respective area, even more preferably less than 4% of the respective area, even more preferably less than 3% of the respective area and most preferably less than 2% of the area respective area with the inner glued forming and stability-giving bag. These embodiments are particularly easy to recycle because of the small glued surface.

However, in further embodiments, the adhesive dots or strips may also be set so close or flow into each other in the attachment of the outer shell to the inner flexible bag ("press effect") that in the

Practice a higher percentage of bonded surface is achieved, which can go to full-surface bonding. In these embodiments, a higher adhesive strength is bought with a tendency for poorer recyclability. However, recyclability improves with the use of commercially available specialty adhesives that combine strength and ease of release.

In other embodiments, the inner bag may also be mounted in a guide rail located on the inside of the bottom or top of the outer shell. This guide rail may be a simple clamping device or include an additional, actively operated clamping mechanism such as a thumbscrew or a clamp switch. To insert the inner bag into a guide rail, it must be such that a small, solid seam edge protrudes perpendicularly from the surface of the bottom or top of the inner bag. About this fold edge of the inner bag is inserted into the guide rail. Such a folded edge can be attached to the inner bag or left out in the production of the inner bag according to the known methods of the prior art, for example by a suitable welding pattern on the inner bag.

In addition, it is preferred if the packaging container according to the invention has a bottom surface as one of the at least three surfaces. This floor area also serves as a stand space and ensures that the packaging container still stands upright even after partial emptying.

In addition, in particular, three surfaces are preferred and more preferably a bottom surface and adjoining two opposing surfaces such as bottom surface, back surface and front surface or bottom surface and both side surfaces.

Furthermore, it is preferred if the opposing surfaces, that is to say the two side surfaces or the front surface and rear surface, have a desired fold line in the region lying near the bottom surface, wherein preferably This Sollfaltlinie seen from the bottom surface is in half the width of the bottom surface, so that when emptying the packaging container, the two opposite lateral surfaces or carton surfaces can be moved towards each other and folded along the respective Sollfaltlinie the respective surface until the complete emptying of the packaging container both shell surfaces or cardboard surfaces lie flat against each other, the Sollfaltlinie each of the two surfaces ideally forms a right angle and the empty or completely empty packaging container has adopted a T-shape. Folded state in this context means that the lateral surfaces are folded so that they form a two-dimensional structure or a plane. In this state, the lateral surfaces coming to lie next to each other are held by Sollfaltlinie each other.

Folded state in this context means that the lateral surfaces are folded so that they form a three-dimensional structure or a space body, which has the shape of the packaging container according to the invention.

According to the invention, in a preferred embodiment, the stability of the packaging container is not primarily determined by the outer jacket, preferably the outer carton. The outer shell preferably outer cardboard has in this embodiment especially stabilizing function as soon as the packaging container has been partially emptied. In the fully filled state, the stability and thus the stackability is effected by the inner bag, which in principle in all embodiments in round, oval, conical, cylindrical, cube-shaped, cuboid, pyramidal, square or rectangular shape or in the form of a triangular prism can be configured , wherein the square and rectangular and in particular the rectangular shape is preferred because of the optimal stackability. A cuboid is defined by the fact that its parallel edges are the same length and the edges are at right angles to each other.

Because of the very good stability and the very good stackability packaging containers in the form of a triangular prism are also preferred. In addition, cubes and in particular cuboid shape are preferred. Furthermore, all packaging forms are preferred in which the top surface is parallel to the bottom surface, the top surface and bottom surface need not be the same size. The embodiments described above may also be combined with gas filling to share the benefits of each of the described embodiments and, if possible, synergistically.

All of the previously described embodiments share the characteristics and specifications described below. If further embodiments are described, these can be combined with both the gas and those with an at least trihedral outer sheath.

The object of the invention is achieved in that the packaging container for dischargeable solids comprises an inner forming and stability-giving bag with a discharge opening and an outer jacket, wherein the inner bag is only partially connected to the outer shell and the outer shell only a part of the outer surfaces of the packaging container forms. The invention thus relates to a packaging container with an inner forming and stabilizing bag made of a shaping and stabilizing fabric or a forming and stabilizing film, a laminated fabric or a laminated film. The inner shaping and stability-giving bag already has the shape of the packaging container already without the outer jacket and is connected or adhesively bonded to the outer shell with a partial surface.

The outer shell creates for the viewer only the impression of an exact edged packaging, be it in the form of a cuboid, cube, triangular prism, cylinder or the like. In addition, the outer jacket functions to support and maintain the shape of the package with the inner bag partially deflated, and the outer jacket serves to apply product information, bar codes, price and advertising, and to package the packaging.

The inner shaping and stabilizing bag is not fully connected at various points with the outer shell, preferably an outer carton. That is, not over the entire inner surface of the outer shell takes place a connection or bonding with the inner bag, but only over as few or as small as possible points or areas, so that a simple, easy and quick separation of bag and coat is given.

No full-surface bonding of inner bag and outer jacket preferably means a punctiform and / or linear bonding or jamming, jamming or pinching. A preferred embodiment of the inner forming and stabilizing bag is the tubular bag. This tubular bag does not necessarily have the shape of a tube, but it is according to the invention to give the tubular bag a certain shape, which corresponds to the shape of the packaging container, so that the tubular bag is approximately or exactly the shape of a cube, cuboid, tetrahedron, cylinder, Vielkantbehälters, triangle, star, heart, wedge, tube, oval cylinder, bag, tube, bottle, triangular prism, a pyramid or ball has and thus adapts to the outer jacket, which has a comparable shape or some surfaces of a body comparable shape forms. Preference is given to shapes which can be defined by the dimensions "height", "length" and "width". The forming and stabilizing bag is preferably made of only one material or composite material such as polyethylene, polyethylene terephthalate, polypropylene, polyesters, polyurethanes and multi-ply materials of the aforementioned materials or other common plastics for storing solids and especially solid foods. The material for the shaping and stabilizing bag thus preferably consists of a plastic film, which can be constructed of up to 7 layers of different materials. However, these plastic bags may also have been steamed with alumina and / or silica. Depending on the content of the forming and stabilizing bag, it must protect the contents from water leakage, water ingress or gas exchange such as CO ₂ emission, be acid resistant, resistant to alcohol and / or protect from sunlight, so that sunlight-repellent layers, sunlight-reflecting Layers or colored flexible bags can be used.

The packaging container has a pour opening or discharge opening which is located at a location that makes it possible to substantially empty the entire contents of the package. The emptying opening is also preferably provided with a mechanism that is resealable, so that after partial emptying of the inner bag resealing or at least one Covering the emptying opening is possible. The emptying opening is preferably in the top surface and more preferably there near the edge of the front surface or the back surface or side surface, or the emptying opening is preferably in the upper region of the front surface or back surface or side surface, and more preferably there in the vicinity to the edge of the top surface.

In further embodiments, the removal opening or an outlet part may also be located on the underside of the inner bag. In these embodiments, the underside of the inner bag is not covered by a surface of the outer shell. For example, such a packaging container can be inserted into a holder which allows removal through the removal opening downwards, for example by operating an outlet part or tearing open a sealed seam. Such embodiments may be used, for example, in industrial processes for the normalized filling of containers with solids. Another application is the use in commercial kitchens. According to the invention, however, individual removal quantities can also be set.

Any reclosable devices or outlet parts or covers can be used for the removal opening, which are preferably resealable by pressure and more preferably engage in a tab, groove or pin, so that a reclosure can take place.

In preferred embodiments, these outlet parts can be separated from the inner bag by a small amount of force. This facilitates separation when the outlet part and the inner bag are made of different materials to be disposed of separately.

According to the invention, the lid can also be a stopper or cork.

The purpose of such a lid is to prevent the exchange of liquid and / or gases through the discharge opening or at least to keep it small. This requirement is reflected in the selection of the material for the outlet part and the respective operation of the lid. The outlet part may also be a scoop. This is particularly preferred in industrial and commercial applications.

Optionally, the outlet part may have a nozzle. This can be folded, The shape depends on the respective contents and the expected average removal quantity.

According to the invention, a disposal of the inner bag can be done in a completely empty, partially empty, full or never filled state.

In conventional packaging containers for liquid foods from the prior art, such as the known Tetra-Pak ^®, is used mostly on the basis of a carton, a lot of material technology, the same rigid material is used for all areas for the packaging container construction. The use of multiple, relatively rigid materials inevitably results in a rigid and inflexible construction.

On the other hand, packaging that does not have a multi-layered construction according to the Tetra- ^Pak® principle and is adhesively bonded to one another over the entire surface, on the other hand, exhibits poor stackability, bursts more easily or loses its stability during emptying.

By stackability is meant that at least 3 pallets, preferably up to 4 pallets and more preferably up to 5 pallets can be stacked on top of each other, so that a conventional truck can be fully loaded in its full height without the stack collapsing and / or the Packaging containers of the lowest pallet would be damaged or burst.

The pallets are all commercially available pallets. Preference is given Europoolpaletten as well as those that are stackable in ISO containers.

Under seamless stackability is to be understood that the packaging container according to the invention can be stacked without gaps, as is the case for cubes, cubes or triangular prisms or a densest ball packing or tube package can be achieved as is possible, for example, in cylindrical packaging. According to the invention, such a good stackability of the packaging container according to the invention is given, although the outer jacket does not completely surround the inner bag, because the inner bag itself is responsible for the stability and shape. Not "completely surrounded" means that, despite the outer jacket, the inner bag remains visible because parts of the surfaces and preferably the entire surface remain open. Since preferably the inner bag is transparent or colorless, also the level in the inner bag can be easily detected at any time.

The present invention overcomes these disadvantages known from the prior art. In particular, easily recyclable, stable and stackable packaging containers are provided, which moreover can be easily and completely emptied. The invention

Packaging containers preferably consist of only two materials (apart from the adhesive), namely preferably a plastic for the shaping and stability-providing inner bag and a carton for the outer jacket. In embodiments using an outlet part, this may consist of a third material. However, it is preferred that the outlet part be made of the same material as the inner bag. Even when consuming the material separation and recycling can take place in plastic waste and paper waste, so that expensive material separations omitted, as is often required in the packaging for example for milk in the prior art.

The packaging container presented here has an inner bag and an outer jacket and preferably has a square or a rectangular, or even a different shape with a bottom surface, a top surface, two side surfaces, a front surface and a back surface. In principle, the invention is not limited to certain types of packaging, so that more unusual shapes such as heart, star, tetrahedron, pyramid, wedge or the like can be used, the cubic or cuboid shape are preferred.

Another preferred form of packaging container is the triangular prism. This possible form of packaging container has an outer

Mantel, which forms the three side surfaces of the triangular prism, wherein the

Floor surface and the top surface are open. Inside the coat is a tubular bag or bag with a shape that also approximates a triangular prism.

The outer shell, preferably a paperboard or a plastic, may be formed from a rectangular matrix which is correspondingly folded and bonded or glued along an overlapping part. The triangular prism preferably has either three side surfaces of equal size and an equilateral triangle (a = b = c) or two equally sized side surfaces and an isosceles triangle (a = b ≠ c) as the base.

Further, it is preferred if a side surface has a central folding edge, which runs parallel to the longitudinal axis of the packaging container. The folded edge runs in the middle of the surface spanned by the edges c and h parallel to the edge h (h for height). When emptying the packaging container, the side surface stretched by the edges c and h fold along the fold, so that the inner bag is compressed and thus completely emptied. When completely empty, the packaging container then has a rectangular shape.

At the upper edge of the packaging container is the emptying opening, which can be closed again by means of a screw cap with a lid. This package is particularly suitable for solid powdered foods such as sugar, flour, salt, bran and the like.

The outer shell of the packaging container can be made of cardboard, cardboard, paper, tissue, edible materials, for example of corn or soybeans, bamboo, wood, plastic, plastic, cellulose, hardboard, glass, stone, ceramic, porcelain, ceramides, pressed board, a natural material, Sisal, hardened banana leaves, tempered raffia, rattan, textile material, leather, a composite material, metal, a metal alloy, or a combination thereof, cardboard, paperboard, and plastic being preferred and paperboard being particularly preferred. It is preferred if only one material is used for the outer jacket. Furthermore, the outer jacket is preferably not laminated, not laminated, not multi-layered, contains no aluminum foil and is not fully bonded or glued to the material of the inner bag. In addition, the outer jacket is preferably produced from a folding pattern. It is not necessary to connect two or more items together to obtain the outer shell. It is essential to the invention that the outer jacket does not form all surfaces of the packaging container, since then an easy recyclability would no longer exist. In the case of a cuboid packaging container, the outer jacket preferably forms 2 or 3 or 4 of the maximum 6 surfaces and more preferably 3 of the total of 6 surfaces, the formed surfaces preferably lying in series one behind the other, eg side surface 1, bottom surface, side surface 2 or eg top surface, Back surface or front surface and bottom surface.

When using a gusseted bag as an inner bag, the outer jacket preferably consists of three parts, two parts covering the side surfaces of the gusseted bag and the third side a narrow side, the top or the bottom of the gusseted bag (for example in the form of a "book cover"). A preferably resealable outlet member may be attached to each of the exposed surfaces.

Furthermore, it is essential to the invention that the outer jacket is not a band, band, loop, ring or an encircling sticker. Such forms are not suitable to exert the function of the outer jacket according to the invention.

Furthermore, the outer jacket is not a label or a price tag attached to one or more sides of the outer shell. In this case, it does not matter whether, for example, this label is glued or welded over its entire area or part of the surface or has been attached to the outer jacket in a different manner. Such forms are also not suitable to give the outer shell a shape-stabilizing function.

Not in accordance with the present invention, however, are any molded one or two-part molds of the outer shell that grip around the inner pouch, whether in the form of a staple or a two-piece sleeve. In particular, the side edges of a cuff must not be welded to the inner bag. These forms are not easy to stack in the context of the invention. In a weld, the goal of easy recyclability can not be achieved. In a packaging container in the form of a triangular prism, the outer jacket preferably forms the three side faces of the prism.

A sheath tuned in size to the shape of a triangular prism, preferably cardboard, is bonded to the inner bag at 15-20 sites, preferably at 10-14, more preferably 6-9, and most preferably at 1-5 sites , Another preferred type of compound is over a variety of small dots such as several hundred to 1000 Punktverklebungen. The bond preferably bonding can be applied selectively and / or as a strip or tape so that the packaging container receives the necessary stability, but can also be easily separated from the bag to be disposed of separately. Combinations of punk-shaped bonds with linear or strip-shaped or circular bonds can also be used. These 15 - 20 splices are adhesive surfaces of more than 4 mm ² each. Instead of these up to 20 large-area splices also several hundred or even several thousand small-area splices can be used, which then preferably distribute evenly or according to a specific pattern on the board surface. The type and design of the individual adhesive surfaces is irrelevant, but important is that a full-surface bonding is avoided and preferably the bonded surface significantly less than 50% of the total inner cardboard surface, preferably less than 40% of the total inner cardboard surface, more preferably less than 30% of total cardboard inner surface and in particular preferably less than 20% of the total cardboard inner surface.

It is essential that preferably no full-surface bonding takes place, wherein the entire surface is already an adhesion of an area of 50% and more understood.

In a further preferred embodiment, depending on the fill level of the inner forming and stabilizing bag, the bond can be successively released or successively released, whereby the inner flexible bag is not kept mechanically open but can fold or roll up better and still the stability of the entire packaging container is not adversely affected by the reduced bond area, since the level and thus the mass Solid or powder in the inner bag has become smaller and the remaining adhesive surface ensures the necessary stability.

Particularly important in the case of the packaging containers according to the invention is that they are stackable and have a dimensional stability which is sufficient to allow stacking of the packaging container, which minimizes the space required and saves transport and storage costs.

In order to achieve a particular stability with the least possible (adhesive) connections, different adhesive schemes can be used. The preferred adhesive schemes are shown in Figs. 2, 3 and 4. The paperboard is preferably adhered to the front surface and / or the back surface by means of the adhesive schemes shown in Figures 2, 3 and 4 with the packaging container. But there are also possible bonding with the bottom surface, the side surfaces or the top surface. The adhesive dots shown schematically in FIGS. 3 and 4 may also be arranged as shown in FIG. 2. The term "pointy" thus stands for preferred embodiments with a bond of 20% of the available total area, more preferably 10% of the available total area and more preferably 5% of the total available area 2, 3 and 4 many adhesive variants are now possible, for example, a cardboard can be glued to the front surface of the packaging container with a two-point gluing or a cardboard can be glued to the back surface of the packaging container with a five-point gluing or a carton can be glued to one or both sides of the packaging container with a seven-point gluing process.Of course, one side surface can be glued with a four-point gluing and the other side surface with a six-point gluing process means, gluing patterns for the individual areas can be selected There is also the possibility that no verblebung takes place on one or two surfaces.

Instead of the strip or Punktverklebungen or compounds can also be a variety of, for example, hundreds to several thousand fine points with a distance of at least one mm to each other used.

Alternatively, however, in other variants of these embodiments as described above, the adhesive dots can be set so tight or when interfacing outer jacket and flexible inner bag, flow into one another such that bonding occurs to a greater percentage to full surface area.

Instead of or in addition to the spot bonding, a linear bonding can take place, which can run, for example, along the edges as well as on the surfaces. The bond lines can be horizontal or vertical or oblique, rectilinear, zig-zag or wave-shaped or subject to no geometry.

The individual lines can be arranged parallel to one another, running towards one another or without geometry and can extend along the side surface, be continuous or interrupted, and can also be supplemented by punctiform bonds.

This type of punctiform and / or linear bonding differs significantly from a bonding of packaging containers from the prior art. For example, the Tetra-Pak ^® uses full-surface bonding. The packaging container according to the invention thus avoids this known disadvantage by saving adhesive resources and therefore leads to easily separable material combinations and fixations. Also, the Verpackuηgsbehälter is thus awarded a better recycling property, since at a selective bonding of the cardboard can be separated from the packaging container easier. Another important aspect is the recyclability of the materials that make up the packaging container according to the invention. By using only two materials (cardboard or plastic and film, also laminated) better recycling properties over packaging containers from the prior art, which are filled with liquid or powdered food, achieved. It should be emphasized that the packaging container according to the invention does not consist of composite materials, as used in packaging containers of the prior art. Although the inner flexible bag may consist of several materials or layers of material, which need not be separated and can be recycled together.

Since the outer shell preferably outer cardboard is not completely, but only selectively glued to the packaging container, is after use of the Packaging container easily separate the jacket or cardboard and thus easily disposed of separately with the actual packaging container.

Due to the use of only slightly different materials, the packaging container according to the invention for solid, granular, chip-like, granulated, paste-like or powdered foods not only provides a packaging container which can be introduced very well into the recycling cycle, but it can also be a substantial less expensive production of the packaging container according to the invention can be achieved. Preferably, only one material or only one composite material is used for the inner shaping and stabilizing bag and also only one material for the outer jacket. After the separation of the outer jacket and the inner bag, two valuable substances are obtained, namely a plastic and, as a rule, a cardboard, which can be supplied to two recycling circuits. Apart from the adhesive, which can be recycled together with the inner bag, the packaging container according to the invention thus preferably consists only of two materials or material types or material combinations. These two materials or material types or material combinations are preferably a plastic, laminated plastics and a cardboard.

This favorable combination of features of the packaging container presented here is surprising and gives the packaging container according to the invention superior functionalities over packaging containers produced according to the prior art. The inventive

Packaging container is stackable and provides optimum space utilization, is very easy to recycle, can be completely emptied and prevents the loss of content, as is the case with sugar or flour packages, for example, where the powdered food is poured directly into a carton and out This uncontrolled escape and contaminated the packaging and the storage location of the packaging container.

Thus, the present invention relates to solid food packaging containers. In addition, according to the invention, the inner bag is shaped in the shape of the outer shell, that is preformed in the shape of the packaging container and thus has a cuboid shape, cube shape, tetrahedral shape, pyramid shape, wedge shape, prism shape, etc. in the completely filled state. Finally, it is essential to the invention that no full-surface bonding or connection of the inner bag and the outer jacket, the jacket and bag are not laminated together, or the material forming the bag is not an inner layer of the outer jacket, and the material forming the bag can be easily separated from the outer jacket by the consumer.

Description of the figures

Figure 1 shows a perspective view of the container according to the invention with opened discharge opening in the top surface, an inner forming and stability-giving bag in the shape of a cuboid and with an outer jacket made of cardboard, which completely surrounds the bottom surface and the two side surfaces and only part of the surface with the inner Bag is glued.

Figure 2 shows the preferred adhesive schemes in a strip bonding of inner bag and cardboard.

FIG. 3 shows the preferred adhesive schemes for 1-3 punctiform splices in the case of an inner bag and cardboard bond. The numbers below the individual graphics indicate the number of adhesive dots. The round circles in the individual graphics represent schematically the punctiform adhesive dots. The adhesive dots are not to scale and can vary greatly in size and shape.

FIG. 4 shows the preferred adhesive schemes for 5-9 punctiform splices in the case of an inner bag and cardboard bond. The numbers below the individual graphics indicate the number of adhesive dots. The round circles in the individual graphics represent schematically the punctiform adhesive dots. The adhesive dots are not to scale and can vary greatly in size and shape.

Figure 5 shows a gusseted bag with an outer jacket, the three

Side surfaces covered. Two of these three surfaces are the two major side surfaces of the gusseted bag. This creates a typical

Form of a "book cover". The illustrated outlet part is resealable. Examples

Example 1 Production of a cuboid packaging container

A conventional tubular bag, which already has the shape of the parallelepiped-shaped packaging container when completely filled, even without the outer jacket, has an emptying opening in the top surface, as shown in FIG.

The outer shell is made of cardboard and surrounds the cuboid packaging container only at its two side surfaces and the bottom surface, wherein the inner bag with the side surface and the bottom surface is only partially connected via a Klebstema as shown in Figures 2, 3 or 4 ,

In the present case, the inner forming and stabilizing bag is filled with Com flakes.

As outer jacket, a box is selected which corresponds to the dimensions, the size of the side surfaces and the size of the bottom surface of the inner bag.

The inner bag is made of polyethylene and has only a single emptying opening. In the area of the emptying opening, the inner bag is connected to the outer carton and the emptying opening is located in the top area in the region of the front edge to the front surface. The emptying opening is provided with a resealable lid.

The edge lengths of the cuboid packaging container are length a = 10 cm, width b = 5 cm and height h = 20 cm.

Example 2 Production of a packaging container in the form of a triangular prism

A conventional tubular bag, which already has the shape of a triangular prism when completely filled even without the outer jacket, has an emptying opening in the front surface at the upper edge in the vicinity of the top surface. The emptying opening is provided with a resealable lid.

The tubular bag is made of a polyurethane, which is suitable for storing food even under refrigeration. The outer coat is made of cardboard.

The edge lengths are a = b = 10 cm and c = 8 cm and the height h is 20 cm and the tubular bag is designed for a content of about 1000 ml.

In the present case, the inner shaping and stabilizing bag is filled with oatmeal or muesli.

Example 3

Production of a cylindrical packaging container

A conventional tubular bag, which already has the shape of a cylinder in the fully filled state, even without the outer jacket, has in the

Deck surface on a discharge opening, which is provided with a resealable lid.

The inner bag is made of polyethylene terephthalate. The outer shell is made of hard fiber and surrounds the cylindrical packaging container only on the tubular side surface, but not on the bottom surface and the

Cover surface. The side surface is about 50 point-shaped and detachable

Adhesions connected to the inner bag. The height of the cylinder is 15 cm and the diameter is 9 cm.

In the present case, the inner shaping and stabilizing bag is filled with sugar.

As the outer jacket, a box is selected which corresponds in size, size and circumference to the side surface of the inner bag. Example 4

Production of a cube-shaped packaging container

A conventional tubular bag, which already has the shape of a cube in the completely filled state, even without the outer jacket, has a scoop on the underside. The inner bag is surrounded at the top and on two interconnected side surfaces by an outer jacket made of plastic. The inner bag and scoop are made of polyester.

This cube-shaped packaging container is filled with peanuts. When used in the foodstuffs industry, these can be supplied standardized with standardized mixed food packaging via the portioning machine.

The edge lengths of the outer shell are each 50 cm.

Example 5

Production of a packaging container in the form of an oval cylinder

A conventional tubular bag is in the fully filled state even without the outer jacket already in the form of an oval cylinder. In this case, the packaging container is filled with flour. The inner bag is filled with nitrogen to help shape the oval cylinder. The inner bag is made of polypropylene. The outer jacket is made of a metal alloy of aluminum and zinc.

The dimensions of the oval cylinder are on the base or top surface of the inner bag 15 cm in the longitudinal axis and 10 cm in the transverse axis. The height is 25 cm. Example 6

Production of a Com Flakes packaging container

Material savings m ² 30% 0.08645 Corresponds to total spam 55%

Claims

claims

A recyclable and stackable container for emptying solids comprising an inner forming and stabilizing bag and an outer jacket, the outer jacket forming only part of the outer surfaces of the packaging container.

2. Recyclable and stackable packaging container according to claim 1, wherein the inner bag is only partially connected to the outer shell.

3. Recyclable and stackable packaging container according to claim 1 or 2, wherein the inner bag is filled with the emptying solid with a gas and pressure-tight and the gas in the sealed inner bag pressure builds up so that the lost inner bag the packaging container a regular stackable Gives shape.

4. Recyclable and stackable packaging container according to one of the preceding claims, wherein the outer sheath of cardboard, cardboard, paper, tissue, edible materials such as corn or soybeans, bamboo,

Wood, plastic, plastic, cellulose, hardboard, glass, stone, ceramics, porcelain, ceramides, pressed board, a natural material, sisal, hardened banana leaves, hardened bast, rattan, textile material, leather, a composite material, metal, a metal alloy or a combination it consists.

5. Recyclable and stackable packaging container according to one of the preceding claims, wherein the inner flexible bag has a removal opening and is connected in the region of the removal opening with the outer jacket.

6. A recyclable and stackable packaging container according to any one of the preceding claims, wherein the inner forming and stabilizing bag is punctiform or linear connected at 1 to 100 points with the outer shell.

7. Recyclable and stackable packaging container according to one of the preceding claims, wherein the packaging container in the fully filled state has the shape of a cube, cuboid, tetrahedron, cylinder, polygonal, triangle, star, heart, wedge, tube, oval cylinder, bag, tube, bottle, triangular prism, a pyramid or sphere.

A recyclable and stackable packaging container according to any one of the preceding claims, wherein the outer jacket does not completely surround or enclose the inner forming and stabilizing bag.

9. Recyclable and stackable packaging container according to one of the preceding claims, wherein the outer shell in a cuboid packaging container, the inner shaping and stability-giving bag only on the bottom surface, front surface and back surface or only on the bottom surface, top surface and back surface or on the bottom surface, top surface and Front surface or at the bottom surface, top surface and a

Side surface of the cuboid packaging container surrounds.

10. Recyclable and stackable packaging container according to one of the preceding claims, wherein the packaging container in the form of a cuboid or cylinder with triangular, quadrangular, pentagonal, hexagonal, heptagon or octagonal bottom surface and top surface only of the outer shell on the bottom surface or the top surface and two more Is surrounded by side surfaces.

11. A recyclable and stackable packaging container according to one of the preceding claims, wherein the jacket in a cylindrical packaging container surrounding the inner forming and stability-providing bag only on the tubular side surface of the packaging container.

12. Recyclable and stackable packaging container according to one of the preceding claims, wherein the emptying opening is provided with a resealable lid.

13. Recyclable and stackable packaging container according to one of the preceding claims, wherein the emptying opening is mounted in the upper third of the packaging container or in the top surface.

14. A recyclable and stackable packaging container according to any one of the preceding claims, wherein the inner forming and stabilizing bag is a tubular bag.

15. Recyclable and stackable packaging container according to one of the preceding claims, wherein the inner shaping and stability-giving bag even without the outer jacket already has the final shape of the packaging container.