EP1798159B1 - Packaging unit comprising a flexible container and an external packaging for the same - Google Patents

Abstract

An outer packaging (28) is moved from first position to the second position by pressing together the straight folding edges. One end of outer packaging provides a self-standing pouch (10) having a portion for standing up the pouch projecting out of the other end with a removable opening (26). The pouch, situated in the outer packaging in pouch longitudinal direction (l) corresponding to a tube axis (z), is attached at least partially to the inner side of outer packaging. The pouch with a front wall (14) and a rear wall is made of flexible film material such as polyimide. An independent claim is a use of a packaging unit.

Description

The invention relates to a packaging unit according to the preamble of claim 1.

For portion-wise packaging of drinkable and / or spoonable pasty products such. Yoghurt, fruit juices, water, soups, vegetables in sauces, e.g. white beans on tomato sauce, rice products and other liquid-containing foods that are heated in a microwave oven and served on a plate are rigid plastic containers usually made by 3D thermoforming or injection molding with a sealed lid and rigid plastic laminate Bag known. Such packaging containers and bags are not ecologically harmless because of their increased to achieve the stability material requirements and also relatively expensive. In addition, the packaging is usually printed directly as an advertising medium and thus generally entail the risk of migration of undesirable substances in the medium in itself.

Another disadvantage of known bag packages is that they can not be touched with a bare hand after heating in a microwave oven.

Cup containers with sealed lid have the disadvantage that they are bulky and easily vulnerable.

A packaging unit of the type mentioned is out US 20031080120 A1 known.

EP-A-0 533 648 discloses a packaging unit with a packaging bag made of a flexible material and a dimensionally stable tubular outer packaging. The outer packaging has two mirror-symmetrically arranged, curved curved lines a concave curved front wall and on straight fold lines a substantially flat rear wall limiting side surfaces, so that the open ends of the outer packaging form a quadrangle. Since the rear wall is divided by a straight fold line into two symmetrical wall parts, the two wall parts can enclose an angle <180 °, so that the open ends of the outer packaging form a pentagon. The concavely curved front wall serves the stiffening / stability of the front wall having a pouring area.

The invention has for its object to provide a package for both drinkable and spoonable products such. As fruit juices, water or soups, as well as products with liquid and solid fractions or semi-solid products such. B. animal feed, which does not have the disadvantages of the prior art packaging described above or to a lesser extent.

For the inventive solution of the problem leads a packaging unit with the features of claim 1.

An essential advantage of the packaging unit according to the invention lies, on the one hand, in the flat pouch shape of the first position, which is excellently suited for transport, and, on the other hand, in the cup-shaped, dimensionally stable and ideal second position for the removal of the filling material.

The bag material and the outer packaging material are preferably organoleptically and chemically neutral mono materials with respect to the contents.

In an expedient embodiment of the packaging unit according to the invention, the outer packaging has a front wall and a rear wall and the outer packaging walls are connected to one another in the longitudinal direction of the bag via laterally extending sealing edges. The packaging bag may have a prey rear wall and a bag rear wall which are also connected in the bag longitudinal direction via laterally extending sealing edges. In this case, the lateral sealing edges of the bag are conveniently sealed in the sealing edges of the outer packaging or, for. B. punctiform by means of hotmelt glued.

The packaging bag preferably has an opening part which can be separated along a tear line lying transversely to the longitudinal direction of the bag so that a removal opening is formed when the opening part is separated by the lateral pressure on the straight folded edges of the outer packaging.

The packaging bag itself can be a stand-up bag without its own stability a tubular bag or an extruded bag. The bag material for the packaging bag according to the invention can have a smaller thickness in comparison to the stiff material required for a stand-up bag with its own stability and is consequently inexpensive. The removal opening formed after removal of the opening part by lateral pressure on the straight folding edges of the outer packaging remains completely and permanently open thanks to the dimensionally stable second position of the outer packaging.

The bag material of the packaging bag according to the invention is preferably a single-layer or multi-layered film of plastic, which may be laminated with a paper layer, or a paper laminated with plastic, and is preferably present as a monomaterial.

To avoid migration of foreign substances into the bag interior, the packaging bag is preferably unprinted.

The overwrap material may be of any inexpensive monomaterial. A preferred overwrapping material is cardboard or a transparent or opaque plastic. The outer packaging can be printed as desired.

The packaging bag is particularly suitable for the packaging of drinkable or spoonable Füllgütem as well as wettable with liquid to drinkable or spoonable products contents. Another preferred application is in the packaging of products intended for heating in a microwave oven. Also for Tiemahrungsmittel and for other products, such. As washing powder and other pourable and free-flowing products, the packaging is suitable

The heating of food such. B. soups can be done in the inventive packaging bag together with the outer packaging in the open state, optionally after mixing with cold water directly in a microwave oven. The advantage of the packaging unit according to the invention lies in the heat-insulating outer packaging, which makes it possible to touch it with the bare hand.

In the case of water with and without carbonic acid, the packaging system serves to store the contents and at the same time as a drinking vessel.

Depending on the type of contents this is still mixed with liquid, such as. As bag soups with hot water, or the product is already in liquid or spoonable form, z. B. yogurt.

• Fig. 1 eine Schrägsicht auf eine erste Ausführungsform Verpackungsbeutel mit Umverpackung in einer ersten Position;
• Fig. 2 einen Schnitt durch einen Teil des Verpackungsbeutels mit Umverpackung von Fig. 1 entlang deren Linie I-I in vergrösserter Darstellung;
• Fig. 3 eine Schrägsicht auf den Verpackungsbeutel mit Umverpackung von Fig. 1 in einer zweiten Position mit abgetrenntem Öffnungsteil;
• Fig. 4 eine Schrägsicht auf eine zweite Ausführungsform eines Verpackungsbeutels mit Umverpackung;
• Fig. 5 einen Schnitt durch einen Teil des Verpackungsbeutels mit Umverpackung von Fig. 4 entlang deren Linie II-II in vergrösserter Darstellung;
• Fig. 6 eine Schrägsicht auf den Verpackungsbeutel mit Umverpackung von Fig. 4 in einer zweiten Position mit abgetrenntem Öffnungsteil;
• Fig. 7 die Seitenansicht der Umverpackung von Fig. 1 in der ersten Position;
• Fig. 8 die Draufsicht auf die Umverpackung von Fig. 7;
• Fig. 9 die Seitenansicht der Umverpackung von Fig. 7 in der zweiten Position;
• Fig. 10 die Seitenansicht der um 90° gedrehten Umverpackung von Fig. 9;
• Fig. 11 die Draufsicht auf die Umverpackung von Fig. 10;
• Fig. 12 die Seitenansicht der Umverpackung von Fig. 4 in der ersten Position;
• Fig. 13 die Draufsicht auf die Umverpackung von Fig. 12;
• Fig. 14 die Seitenansicht der Umverpackung von Fig. 12 in der zweiten Position;
• Fig. 15 die Seitenansicht der um 90° gedrehten Umverpackung von Fig. 14;
• Fig. 16 die Draufsicht auf die Umverpackung von Fig. 15;
• Fig. 17 eine der Seitenansicht von Fig. 12 entsprechende Seitenansicht einer anderen Ausführungsform der Umverpackung von Fig. 4 in der ersten Position;
• Fig. 18 die Draufsicht auf die Umverpackung von Fig. 17;
• Fig. 19 die Seitenansicht der Umverpackung von Fig. 18 in der zweiten Position;
• Fig. 20 die Draufsicht auf die Umverpackung von Fig. 19.

Further advantages, features and details of the invention will become apparent from the following description of preferred embodiments and by reference the drawing; this shows schematically in

• Fig. 1 an oblique view of a first embodiment packaging bag with outer packaging in a first position;
• Fig. 2 a section through a portion of the packaging bag with outer packaging of Fig. 1 along its line II in an enlarged view;
• Fig. 3 an oblique view of the packaging bag with outer packaging of Fig. 1 in a second position with a separate opening part;
• Fig. 4 an oblique view of a second embodiment of a packaging bag with outer packaging;
• Fig. 5 a section through a portion of the packaging bag with outer packaging of Fig. 4 along its line II-II in an enlarged view;
• Fig. 6 an oblique view of the packaging bag with outer packaging of Fig. 4 in a second position with a separate opening part;
• Fig. 7 the side view of the outer packaging of Fig. 1 in the first position;
• Fig. 8 the top view of the outer packaging of Fig. 7 ;
• Fig. 9 the side view of the outer packaging of Fig. 7 in the second position;
• Fig. 10 the side view of the rotated by 90 ° outer packaging of Fig. 9 ;
• Fig. 11 the top view of the outer packaging of Fig. 10 ;
• Fig. 12 the side view of the outer packaging of Fig. 4 in the first position;
• Fig. 13 the top view of the outer packaging of Fig. 12 ;
• Fig. 14 the side view of the outer packaging of Fig. 12 in the second position;
• Fig. 15 the side view of the rotated by 90 ° outer packaging of Fig. 14 ;
• Fig. 16 the top view of the outer packaging of Fig. 15 ;
• Fig. 17 a side view of Fig. 12 corresponding side view another embodiment of the outer packaging of Fig. 4 in the first position;
• Fig. 18 the top view of the outer packaging of Fig. 17 ;
• Fig. 19 the side view of the outer packaging of Fig. 18 in the second position;
• Fig. 20 the top view of the outer packaging of Fig. 19 ,

One in the Fig. 1 to 3 packaging unit shown is composed of a packaging bag 10 and an outer packaging 28. The packaging bag 10 in the form of a flexible sheet material such. As polyamide, existing stand bag has a not apparent from the drawing sealed bottom, a front wall 14 and a rear wall 16. Two laterally arranged longitudinal sealing seams 18, 19 defining a longitudinal direction of the bag I connect the two bag walls 14, 16 rising from the bottom and, together with a transverse seam 20 joining the longitudinal sealing seams 18, 19 at the bottom end, lead to the closed packaging bag 10.

The transverse sealing seam 20 at the bottom end of the packaging bag 10 is part of an opening part 26 separable from the bag. To open the packaging bag 10, the opening part 26 is torn away along a tear line 24 arranged parallel and at a short distance from the transverse sealing seam 20 in the bag walls 14, 16. As a tear-open in the longitudinal sealing seams 18,19 tear scores 22, 23 are provided with ending at the tear line 24 tip.

From a substantially dimensionally stable material, such. B. cardboard, manufactured tubular outer package 28, the open ends 31, 33 are parallel to each other and perpendicular to a tube axis z encloses the packaging bag 10 in a in Fig. 1 shown first position with a front wall 30 and a rear wall 32, extends from the bottom of the bag walls 14, 16 against the opening portion 26 and terminates at a short distance to the tear line 24. The bag longitudinal direction I of the packaging bag 10 is in the tube axis z of the outer package 28. The one end 31 of the tubular outer packaging 28 serves as a footing for the packaging unit, so that the packaging bag 10 itself does not have to be stable. The packaging bag 10 can therefore also be a simple tubular bag with a longitudinal seam, or an extruded bag without a longitudinal seam, and two transverse seams.

The front wall 30 and the rear wall 32 of the outer package 28 are connected to each other via two lateral, in the tube axis z or in the bag longitudinal direction I sealing seams 34, 35. When sealing the two outer packaging walls 30, 32, the lateral longitudinal sealing seams 18, 19 of the packaging bag 10 arranged between the front wall 30 and rear wall 32 of the outer packaging 28 are sealed into the lateral sealing seams 34, 35 of the outer packaging 28 (FIG. Fig. 2 ).

The arranged in the outer packaging 28 packaging bag 10 is at least partially attached to the inside of the outer package 28. The attachment of the bag walls 14, 16 on the inside of the outer package 28, in particular at its the opening part 26 of the packaging bag 10 near edge, z. B. partially over punctual splices 36th

The open ends 31, 33 of the outer package 28 form in the first position a hexagon with two parallel to a plane of symmetry E sides a, b and two angles α <180 ° enclosing, mirror symmetry to the plane of symmetry E lying sides c1, c2 and d1, d2.

Between the corner points of the mirror-symmetrical to the plane of symmetry lying sides c1, c2 and d1, d2 of the two ends 31, 33 runs a straight folding edge g, h. One folding edge g is arranged in the rear wall 32 of the outer package 28 as a borderline to the sealed seam 34, the other folded edge h in the front wall 30 as a borderline to the sealed seam 35.

Between the vertices of the two parallel to the plane of symmetry lying sides a, b of the two ends 31, 33 extend curved arcuate fold edges i, k or I, m.

In an in Fig. 3 2, the open ends 31, 33 form a quadrilateral with the two sides a, b lying parallel to the plane of symmetry E, and two angles a = 180, lying perpendicular to the plane of symmetry E and composed of the hexagonal sides c1, c2 and d1, d2 ° forming quadrilateral c, d.

As in the Fig. 7 to 11 shown, the second position of the outer package 28 results from the first position by pressing the straight folded edges g, h or the sealed seams 34, 35 in the direction of arrow A. Here are the lying between the parallel to the plane of symmetry E sides a, b of the two Ends 31, 33 extending outer surfaces 37, 39 of the outer packaging 28 in pairs to convex curved surfaces and the between the perpendicular to the plane of symmetry E lying sides c, d extending outer surfaces 41, 43 deform in pairs to concave curved surfaces. In the second position of the outer packaging 28, the sealing seams 34, 35 rest on the concavely curved outer surfaces 41, 43.

The in the 4 to 6 The packaging unit shown differs from the packaging unit according to the Fig. 1 to 3 by the different construction of the outer package 28 from a one-piece blank of example cardboard. In this embodiment, the packaging bag 10 on the inside of the outer package 28 at least at its the opening part 26 near the edge z. B. attached partially over punctiform splices 36.

As in the Fig. 12 to 16 shown here also results in the second position of the outer package 28 from the first position by pressing the straight folding edges g, h in the direction of arrow A, whereby the between the parallel to the plane of symmetry E lying sides a, b of the two ends 31, 33 extending outer surfaces 37, 39 of the outer packaging 28 in pairs to convex curved surfaces and between the perpendicular to the plane of symmetry E lying sides c, d extending outer surfaces 41, 43 in pairs to concave deform curved surface. Since no sealing seams are present in this embodiment of the outer packaging 28, the outer surfaces 41, 43 spontaneously fall into a dimensionally stable, concavely curved end position when the straight folding edges g, h are pressed against each other shortly before reaching the second position.

The second position in the Fig. 7 to 11 and 12 to 16 For example, the outer package 28 shown has the following dimensions: Height H 80 mm first width A1 of the open ends 31, 33 50 mm second width B1 of the open ends 31 33 35 mm first width A2 at half height (40 mm) 35 mm second width B2 at half height (40 mm) 50 mm

Based on these dimensions, all uniformly symmetrically enlarged or reduced shapes lead to ideal outer packaging with regard to the formation and stability of the second position. Of course, other forms with different proportions are possible. Other possible shapes with different proportions from the ideal shape can be determined with simple experiments.

In the Fig. 17 to 20 a special embodiment of an outer packaging 28 is shown. Here, a part of the rear wall 32 in the form of a handle 44 projects beyond the straight folding edge h. The folded edge h runs as a borderline to a narrow, bonded to the formation of the tubular outer package 28 with the inside of the rear wall 32 strips 35 in the front wall 30. The handle adjacent sides d1, d2 of the open ends 31, 33 are shorter than the more distant sides c1, c2. When the straight folded edges g, h are pressed against one another, a concave outer surface results only on the side opposite the handle, so that the ends 31, 33 of the outer packaging 28 form a pentagon. A packaging unit with a packaging bag 10 and an outer packaging 28 according to the Fig. 17 to 20 results in the first position a flat pouch packaging and in the second position a cup.

When tearing off the opening part 28 or when opening the packaging bag 10 by cutting away the bag end is formed in all embodiments of the invention in the packaging bag 10, an opening 38, by pressing the straight folded edges g, h or the sealed seams 34, 35 of the outer package 28 in the arrow direction A can be set to the predetermined by the second position maximum opening size.

Claims (13)

1. Packaging unit having a packaging bag (10) made of a flexible, film-like first material and having a substantially dimensionally stable surrounding package (28) made of a second material,
   characterised in that
   the surrounding package (28) is tubular with open ends (31, 33) arranged in one plane perpendicularly to a tube axis (z), and the ends (31, 33) in a first position form a hexagon having sides located two parallel (a, b) and two (c1, c2; d1, d2) inversely symmetrically to a plane of symmetry (E) and each forming an angle α < 180°, and in a second position form a quadrangle having sides located two parallel (a, b) and two perpendicularly (c, d) to the plane of symmetry (E), in the first position a straight folding edge (g, h) running between the corner points of the sides (a, b) of the two ends (31, 33) located inversely symmetrically to the plane of symmetry (E), and in the second position the sides (a, b) of the two ends located inversely symmetrically to the plane of symmetry (E) forming an angle α = 180°, and in the first and second positions curved folding edges (i, k; 1, m) running between the corner points of the two sides (a, b) of the two ends (31, 33) located parallel to the plane of symmetry (E) in such a way that in the second position the outer surfaces (37, 39) of the surrounding package (28) that extend between the sides (a, b) of the two ends (E) located parallel to the plane of symmetry (E) are curved convexly, and the outer surfaces (41, 43) of the surrounding package (28) that extend between the sides (c, d) of the two ends (31, 33) located perpendicularly to the plane of symmetry (E) are curved concavely, the surrounding package (28) being capable of being moved out of the first position by pressing the straight folding edges (g, h) towards each other into the second position, one end (31) of the surrounding package (28) providing a standing surface for the packaging bag (10) which protrudes from the other end (33) with a detachable opening portion (26), and the packaging bag (10) arranged in the surrounding package in a longitudinal direction (1) of the bag corresponding to the tube axis (z) being at least partially attached to the inner side of the surrounding package (28).
2. Packaging unit according to claim 1, characterised in that the surrounding package (28) has a front wall (30) and a rear wall (32), and the surrounding package walls (30, 32) are joined together in the longitudinal direction (1) of the bag by laterally extending sealing edges (34, 35).
3. Packaging unit according to claim 2, characterised in that the packaging bag (10) has a front bag wall (14) and a rear bag wall (16), which are joined together in the longitudinal direction (1) of the bag by laterally extending sealing edges (18, 19), and the lateral sealing edges (18, 19) of the bag are sealed or glued into the sealing edges (34, 35) of the surrounding package (28).
4. Packaging unit according to any of claims 1 to 3, characterised in that the packaging bag (10) has an opening portion (26) detachable along a tear line (24) located transversely to the longitudinal direction (1) of the bag, so that when the opening portion (26) is detached a removal opening (38) forms due to the lateral pressure on the straight folding edges (g, h) of the surrounding package (28).
5. Packaging unit according to any of claims 1 to 4, characterised in that the bag material is a single- or multi-layer film of plastic, if occasion arises laminated with a paper layer, or a paper laminated with plastic, and is preferably in the form of a monomaterial.
6. Packaging unit according to any of claims 1 to 5, characterised in that the packaging bag (10) is unprinted.
7. Packaging unit according to any of claims 1 to 6, characterised in that the surrounding package material is cardboard or a transparent or opaque plastic and is preferably in the form of a monomaterial.
8. Packaging unit according to any of claims 1 to 7, characterised in that the surrounding package (28) is printed.
9. Packaging unit according to any of claims 1 to 8, characterised in that the packaging bag (10) is attached by adhesive spots (36) to the inner wall of the surrounding package (28).
10. Packaging unit according to any of claims 1 to 9, characterised in that the packaging bag (10) is a standing bag, a tubular bag or an extruded bag.
11. Use of a packaging unit according to any of claims 1 to 10 for the packaging of drinkable or spoonable contents and for animal foods.
12. Use of a packaging unit according to any of claims 1 to 10 for the packaging of contents which can be mixed with liquid to form drinkable or spoonable products.
13. Use of a packaging unit according to any of claims 1 to 10 for the packaging of contents provided for heating in a microwave oven.

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