EP0997393B1 - Packaging pouch - Google Patents

Abstract

The bag(10) has a first section(32) to hold a liquid substance and a second section(34) separated fluidtight from the first section to accommodate a drinking straw section(42). The straw(38,42) leads from the first section into the second section, is connected fluidtight to the bag in the transition region, and has a valve element for opening and closing of the flow passage(37). The straw may have a joint movable between an open and closed position by hinging or twisting the straw section protruding into the second section.

Description

The invention relates to a packaging bag according to the preamble of independent claims 1 and 2.

The drinking tube is on for a large number of packaging bags for drinks attached to the outside of the bag. With the beveled on one side Drinking tube, the bag is pierced at a predetermined location. at clumsy handling, e.g. through children, the drinking tube can bend, without piercing the bag. Another problem is that Risk of injury due to the beveled drinking tube and leakage of the drink with clumsy handling.

A flexible bag is also known in which the drinking tube is inside the bag is arranged in the same cavity as the beverage liquid. The Packaging bags designed as stand-up pouches have in the area of the upper one Edge of the bag with a tear line followed by a tear line on. The length of the drinking tube is set so that the lower end is on the lowest point of the bag and the upper end of the drinking tube above the tear line. With this arrangement, the drinking tube is after tearing of the bag easily accessible. Has turned out to be disadvantageous, however proven that if the bag is torn open carelessly or if it is too stiff Tear opener a part of the beverage content when opening the Packaging can flow out of the bag in an uncontrolled manner.

In another known packaging bag for drinks with an integrated The drinking tube is in a kind of bag, which is from the actual beverage bag is separated by a film. The tube is flexible in its drinking area designed and hygienically packed using a peelable film. To When this protective film is torn open, the drinking tube will be straightened and straight lower end by light pressure from the inside pocket into the drink-filled Bag cavity ejected. This packaging does not offer any either Protection against leakage of the drink after the drinking tube is in the bag pierced once.

From US-A-3 799 914 is a packaging bag with one in the bag arranged drinking tube known. The bag has a first compartment Picking up a filling and one from the first compartment through a sealed seam fluid-tight separate second compartment for receiving a tubular part, wherein the pipe leads from the first compartment to the second compartment. That in the second compartment protruding pipe part has a kink. This prevents the flow through the tube in the unopened bag. After opening the bag it will End piece of the pipe part projecting into the second compartment into the drinking position erected, whereby the kink releases the flow through the pipe.

US-A-5 564 591 also discloses a packaging bag with two Compartments and a drinking tube connecting them. The drinking tube is through a guided with the bag sealed reinforcement.

The beverage bags currently available on the market all have the disadvantage that once opened, there is no easy-to-use resealable option consists. As mentioned above, this can lead to contamination through uncontrolled leakage of the package contents.

The invention is therefore based on the object of making a beverage bag more user-friendly to design. In particular, the packaging bag should Have an integrated drinking tube and at the same time be leak-proof. Another one The aim of the invention is to provide a packaging bag for liquid or pasty filling goods with a reclosable drinking or Drain tube.

To achieve the object according to the invention) a packaging bag with the features of independent claims 1 and 2.

With an appropriate arrangement of the packaging bag according to independent claim 2, the transition piece has at least a sealing surface at least partially delimiting the second compartment. Especially an arrangement is suitable in which the transition piece is two at right angles has abutting sealing surfaces.

As an additional security against leakage, the pipe can be in its second compartment protruding end with an easy-to-open, fluid-tight in the unopened bag Closure.

The part of the tube protruding into the first compartment expediently ends or the first tube part to ensure complete emptying of the bag when used as a beverage bag at the lowest point of the first Compartment of the pouch.

The part of the tube projecting into the first compartment or the first tube part is preferred elastically resilient, whereas that protruding into the second compartment Part of the tube or the second tube part is preferably deformed and / or is designed to be extendable and, for example, an extendable bellows-type Has part.

A tear line or a peelable line is preferred in the region of the second compartment Opening intended as access to the pipe.

The packaging bag according to the invention can be used for beverages, for pasty ones Products such as yogurt or fruit musts and the like can be used. Another The field of application is technical products such as Motor oil, Lubricant or detergent.

The one intended for receiving a pipe part, from the first compartment for receiving The second compartment, which is separated from the contents, protects the pipe from opening from contamination, is hygienically packed and can be aseptic if necessary being held. This is particularly important when using of the bag for packaging food.

• Fig. 1   eine Draufsicht auf einen ersten Getränkebeutel mit integriertem Trinkrohr;
• Fig. 2   einen Schnitt durch den Getränkebeutel von Fig. 1 nach deren Linie I-I;
• Fig. 3   einen Querschnitt durch das Verschlussstück des Getränkebeutels von Fig. 1 nach deren Linie II-II in Schliessstellung;
• Fig. 4   den Querschnitt des Verschlussstückes von Fig. 3 in Offenstellung;
• Fig. 5   eine Draufsicht auf einen Teil eines zweiten Getränkebeutels mit integriertem Trinkrohr und einem Übergangsstück;
• Fig. 6   eine Stimansicht des Übergangsstückes von Fig. 5 in Blickrichtung a;
• Fig. 7   eine weitere Stimansicht des Übergangsstückes von Fig. 5 in Blickrichtung b.

Further advantages, features and details of the invention result from the following description of a preferred exemplary embodiment and from the drawing; this shows schematically in

• Figure 1 is a plan view of a first beverage bag with an integrated drinking tube.
• FIG. 2 shows a section through the beverage bag from FIG. 1 along the line II thereof;
• 3 shows a cross section through the closure piece of the beverage bag from FIG. 1 along its line II-II in the closed position;
• FIG. 4 shows the cross section of the closure piece from FIG. 3 in the open position;
• Figure 5 is a plan view of part of a second beverage bag with an integrated drinking tube and a transition piece.
• FIG. 6 is an end view of the transition piece from FIG. 5 in viewing direction a;
• FIG. 7 shows a further end view of the transition piece from FIG. 5 in the viewing direction b.

A packaging bag 10 for drinks shown in Fig. 1 consists of a Front wall film 12 and a rear wall film 14, which has a circumferential Sealing seam 16 are connected to one another in a liquid-tight manner. In one configuration of the packaging bag as a stand-up pouch - not in the drawing shown - between the front wall film 12 and the rear wall film 14 in lower area of the part of the packaging bag which later forms the base additionally welded a base film in a known manner.

As shown in FIG. 2, the front wall film 12 consists, for example, of an inner film 18 made of, for example, polyethylene, polypropylene, its copolymers or ionomers and an outer film 22. The outer film 22 is, for example, a composite with an outer partial film 22a of, for example, oriented polyethylene terephthalate (PET) or oriented polypropylene (oPP) and an inner partial film 22b made of, for example, oriented polyamide or aluminum. Alternatively, the inner partial film 22 can be metallized or provided with an oxidic layer such as SiO _x . A permanent adhesive 26 based on, for example, polyurethane is arranged between the inner film 18 and the outer film 22.

The back wall film 14 shows one with the front wall film in the present example 12 identical structure, namely an inner film 20 from, for example Polyethylene, polypropylene, their copolymers or ionomers, which over a permanent adhesive 28 made of, for example, polyurethane with the outer Foil 24 is glued. Instead of using a permanent adhesive the inner film 20, for example, on the outer film 24 by extrusion be laminated. The outer film 24 also consists of an outer one Partial film 24a made of, for example, oriented polyethylene terephthalate (PET) or oriented polypropylene (oPP) and an inner partial film 24b, for example oriented polyamide or aluminum. The back wall film 14 can but also a different layer structure compared to the front wall film 14 to have.

The packaging bag 10 is sealed by a further sealing seam 30 into a first one Compartment 32 for the beverage intake and in a second compartment 34 for the Divided drinking tube end. A connecting piece 36 is made in the sealing seam 30 for example sealed an elastomer. The connector 36 connects the compartments 32, 34 separated from one another in a liquid-tight manner via a Flow channel 37.

A first drinking tube part 38 is fixed to the connecting piece 36 in the first compartment 32, the free open end of which is chamfered and at the lowest point of the packaging bag 10 ends. This first drinking tube part 38 is preferably resiliently designed so that it is at the lowest point of the bag remains and thus ensures complete emptying. A second Drinking tube part 42 is within the second compartment 34 with the connector 36 connected. The free end 44 of the second drinking tube part 42 is closed and provided with a break line 46 for the first opening. Between the The connecting piece 36 and the breaking line 46 have the second drinking tube part 42 a bellows-like part 48. This can both lengthen the drinking tube as well as being bent into the most favorable drinking position.

In the area of the second compartment 34 for the end of the drinking tube is at the edge of the bag 10 a marking notch 50 is provided, against which a tear line 52 in the Form a line-shaped weakening point. The tear line 52 can also be designed as a dividing line for a peel opening, one Tear tab 54 is preferably arranged in the corner region of the bag.

The connector 36 shown in FIGS. 3 and 4 is with a Flow channel 37 arranged closure part 56 equipped. This closure part 56 has a dividing line or surface 58, which can be changed by application a light pressure p between two fingers, for example Flow opening 60 expanded. Of course, instead of the one shown here Closure part 56 also conceivable other valve systems, for example Check or needle valves.

In the beverage bag shown in FIGS. 5 to 7, one end piece 43 is the second Drinking tube part 42 provided with a kink 64, the kinked Drinking tube part 42 closes the flow through the drinking tube in a fluid-tight manner. The Kink 64 can be due to an asymmetrical distribution of the plastic in the Cross section of the drinking tube part 42 and by a targeted heat treatment be generated. After opening the bag 10, the end piece 43 of the in the second compartment 34 protruding second drinking tube part 42 erected, whereby the kink 64 releases the flow through the drinking tube.

The second drinking tube part 43 passes through a transition piece 66 and is in this guided in a channel 68 in a fluid-tight manner and with the transition piece 66, for example glued or sealed.

The transition piece 66 has two sealing surfaces that abut one another at right angles 70a, b on that with the front wall film 12 and with the back wall film 14 are sealed into the packaging bag 10 via sealing seams 30a, b. The Sealing surfaces 70a, b thus form part of the boundary of the second compartment. Alternatively, the transition piece 66 can also have only one sealing surface 70a exhibit.

That made of plastic - for example polyethylene, polypropylene or others sprayable plastics - manufactured transition piece 66 is with a cross-section C-shaped holding part 72 with an opening gap 74 for lateral Introduction of the end piece 43 equipped in the kink position.

The packaging bag 10 shown schematically in the drawing can can of course be of any design, e.g. as a stand-up pouch.

Claims (10)

1. Packing sachet with a drinking straw or pouring tube (38, 43) arranged in the sachet (10) and an easy-opening protected area as access to the straw or pouring tube, where the sachet (10) has a first compartment (32) to hold a filling and a second compartment (34) separated fluid-tight from the first by a sealing or adhesive seam (30) and intended to hold a straw part (42), where the straw (38, 42) leads from the first compartment (32) into the second compartment (34),
   characterised in that
   a connecting piece (36) joining the two compartments (32, 34) is sealed or glued to the sachet fluid-tight by way of the sealing or adhesive seam (30), where the connecting piece (36) is connected with a first straw part (38) projecting into the first compartment (32) and with a second straw part (42) projecting into the second compartment (34), and where the connecting piece (36) comprises a valve element (56, 58) which releases a flow channel (37) under lateral pressure and closes again automatically.
2. Packing sachet with a drinking straw or pouring tube (38, 43) arranged in the sachet (10) and an easy-opening protected area as access to the straw or pouring tube, where the sachet (10) has a first compartment (32) to hold a filling and a second compartment (34) separated fluid-tight from the first by a sealing or adhesive seam (30a, b) and intended to hold a straw part (42), where the straw (38, 42) leads from the first compartment (32) into the second compartment (34), and where the straw (38, 42), in the straw part (42) projecting into the second compartment (34), has a kink point (64) which shuts off the flow through the straw (38, 42) fluid-tight when the sachet (10) is unopened and, after the sachet (10) is opened by straightening the end piece (43) of the straw part (42) projecting into the second compartment (34), releases the flow through the straw (38, 42),
   characterised in that
   a transition piece (66) joining the two compartments (32, 34) and having a channel (68) for fluid-tight passage of a straw (38, 42) is sealed or glued to the sachet fluid-tight by way of the sealing or adhesive seam (30a, b), where the transition piece (66) has a holder part (72) for holding and fixing the end piece (43) in the kinked position of the straw (42).
3. Packing sachet according to claim 2, characterised in that the transition piece (66) has at least one sealing surface (70a) at least partly bordering the second compartment (34).
4. Packing sachet according to claim 3, characterised in that the transition piece (66) has two sealing surfaces (70a, b) abutting each other at right angles.
5. Packing sachet according to any of claims 1 to 4, characterised in that the straw (38, 42) is fitted at its end projecting into the second compartment (34) with an easy to open closure (44, 46) which is fluid-tight when the sachet (10) is unopened.
6. Packing sachet according to any of claims 1 to 5, characterised in that the part of the straw projecting into the first compartment (32), or the first straw part (38), terminates at the lowest point of the first compartment (32) of the sachet (10) to guarantee complete emptying of the sachet when used as a drink sachet.
7. Packing sachet according to claim 6, characterised in that the part of the straw projecting into the first compartment (32), or the first straw part (38), is designed elastically sprung.
8. Packing sachet according to any of claims 1 to 7, characterised in that the part of the straw projecting into the second compartment (34), or the second straw part (42), is designed deformable and/or extendable.
9. Packing sachet according to claim 8, characterised in that the part of the straw projecting into the second compartment (34), or the second straw part (42), has an extendable section (48) which is folded concertinalike.
10. Packing sachet according to any of claims 1 to 9, characterised in that in the area of the second compartment (34) is provided a tear strip (52) or a peelable opening as access to the straw (42).

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