DE102013008978A1 - Multi-chamber bag, bag roll therewith, foil web therefor and method for producing the multi-chamber bag or bag roll - Google Patents

Abstract

The invention relates to a multi-chamber bag (1) which provides at least two chambers (2, 3). The multi-chamber bag (1) has a first flat side (4), a second flat side (5) and at least one partition (16) which is arranged between the flat sides (4, 5) and separates the chambers (2, 3) from one another. The multi-chamber bag (1) also has at least one transverse connection (14) which fixes the flat sides (4, 5) to one another to form a transverse boundary of the chambers (2, 3). The partition (16) is connected in the region of its first side edge (17) to the first flat side (4) and in the region of its second side edge (18) to the second flat side (5). In the area of the cross connection (14), the partition (16) is fixed at least in several layers, in particular in two layers, between the flat sides (4, 5). The invention further relates to a roll with several of the multi-chamber bags (1), a film web therefor and a method for producing the multi-chamber bag (1).

Description

The invention relates to a multi-chamber bag, which provides at least two chambers, according to the preamble of claim 1. Furthermore, the invention relates to a bag roll with a plurality of multi-chamber bag according to claim 16 and a film web according to claim 17. Further, the invention relates to a method for producing the multi-chamber bag or the roll of bags according to claim 18.

In particular, the invention relates to a multi-chamber bag, which is suitable for receiving bulk materials, such as animal feed. There are bags for animal feed are known which have flat sides and narrow sides, by means of which a chamber for receiving the animal food is limited. Above the chamber is closed by means of a cross connection. At the bottom, the chamber is initially open in order to fill it. After filling, the chamber is closed at the bottom by means of another cross connection.

Animals are sometimes fed different animal feed. For example, a dog food that is fed in the evening may contain dentifrice supplements, whereas a dog food that is fed in the morning can do without these dental care supplements. It is desirable to provide both dog foods separately in a multi-compartment bag. Also in the construction sector, it may be useful to provide, for example, sand and cement mortar separated from each other in a multi-chamber bag.

There are multi-chamber bag are known in which the chambers are separated from each other by that the flat sides are welded together. Such multi-chamber bags are used in particular in the medical field. For example, shows EP 1 264 588 B1 Such a multi-chamber bag.

A multi-chamber tube bag, which is formed from several tubes, is out DE 100 30 983 B4 known. EP 0 190 385 A1 discloses a pack having at least two chambers, in which another bag or partial bag is attached to a conventional bag. Furthermore, it is off DE 79 08 132 U1 a two-chamber bag package known which provides two chambers by means of a partition used.

The known multi-chamber bags either assume a bulbous shape in the filled state and are therefore insufficiently stable or unfavorably stackable or they can only be produced in a complicated manner.

The invention is therefore based on the object to provide multi-chamber bag, which can be produced with little effort and in the filled state have at most low bumpiness.

The invention solves this object with a multi-chamber bag according to claim 1, with a roll of multi-chamber bags according to claim 16, with a film web according to claim 17 and with a method for producing a multi-chamber bag or a roll of multi-chamber bags according to claim 18.

In a multi-chamber bag, which provides at least two chambers, with a first flat side, with a second flat side, with at least one between the flat sides arranged partition which separates the chambers from each other, and with at least one cross-connection, which the flat sides to form a transverse boundary of the chambers fixed to each other, wherein the partition wall is connected in the region of its first side edge with the first flat side, in the region of its second side edge is connected to the second flat side and is fixed in the region of the transverse connection between the flat sides, is provided according to the invention that the partition in the Cross-connection at least partially multi-layered, in particular double-ply, is fixed between the flat sides. In particular, the dividing wall is arranged in a region extending over the entire length of the dividing wall, in multiple layers between the flat sides.

Thanks to the multi-layered partition wall is maintained while maintaining the robust fixation between the flat sides in the region of the cross-connection means of this cross-connection formation of the chambers, which facilitates filling the chambers and the multi-chamber bag can accept a possibly very limited bulbous shape. The multi-chamber bag can be easily manufactured, is sturdy and can be easily stacked.

The cross connection is preferably a weld. Alternatively, the cross connection is for example an adhesive connection. Preferably, after filling the multi-chamber bag, a further cross-connection for closing the multi-chamber bag is attached.

According to a preferred embodiment, the partition wall is folded at least once, at least in the region of the transverse connection. In particular, at least one longitudinally continuous fold is arranged in the partition, at least when the multi-chamber bag is folded or not filled. Thanks to the fold, the multi-layer is achieved in a simple manner.

According to a preferred embodiment, at least one of the flat sides is formed in one piece, in particular without rims. As a result, an advantageous cohesion of the bag and a one-piece or planar presentation surface is achieved.

According to a preferred embodiment, the multi-chamber bag between the flat sides arranged narrow sides, which bound the bag laterally. In this case, the narrow sides in the region of their respective first side edge are connected to the first flat side and connected in the region of their respective second side edge to the second flat side. Thanks to the narrow sides of unfolded or filled multi-chamber bag can take a box shape.

According to a preferred embodiment, the narrow sides in the region of the transverse connection are at least partially multi-layered, in particular double-layered, fixed between the flat sides. According to the fixation of the partition, the fixation can be easily obtained by introducing the cross connection. Subsequently, there is a secure connection between the flat sides and narrow sides in the region of the cross connection.

According to a preferred embodiment, the narrow sides are folded at least once at least in the region of the transverse connection. In particular, the multi-chamber bag is designed as a side-fold bag, wherein the narrow sides are folded longitudinally throughout. This achieves the same shape support as through the partition.

The narrow sides are preferably formed integrally with at least one of the flat sides. Alternatively, the narrow sides are formed separately and attached for example by means of a welded connection to the flat sides.

According to a preferred embodiment, the partition at most one and a half times the width, in particular 1.2 times the width of the narrow sides. Particularly preferably, the dividing wall has a width between the width of the narrow sides and 1.2 times the width of the narrow sides. As a result, the box-shaped configuration of the filled multi-chamber bag is supported in an advantageous manner.

According to a preferred embodiment, the partition is formed independently of the flat sides and attached to the flat sides, in particular glued or welded. The multi-chamber bag designed in this way is particularly advantageous to manufacture and particularly durable. In addition, this allows a seamless surface of the flat sides.

The flat sides and / or the narrow sides and / or the dividing wall are preferably formed in each case or partly together from a foil or from paper. The film is in particular a composite film. The film preferably comprises polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET) and / or polyamide and / or paper. Preferably, the film is metallized or has a metallization.

According to a preferred embodiment, the material of the partition differs from the material of the flat sides and / or the narrow sides. As a result, the material of the flat sides and / or the narrow sides can be adapted to the protection of a chamber contents from the environment. By contrast, the dividing wall may be specially adapted to the separation of contents of the chambers adjoining the dividing wall.

According to a preferred embodiment, the partition has a barrier material, which counteracts a mass transfer between the adjacent to the partition wall chambers.

According to a preferred embodiment, the chambers are arranged below the transverse connection and the multi-chamber bag has a functional region arranged above the transverse connection, the partition wall also extending through the functional region between the flat sides. The cross connection thus separates the chambers from the functional area. The continuation of the partition by the functional area allows a simple tape production of multi-chamber bag. Furthermore, the partition can also be used in the functional area.

According to a preferred embodiment, in which the multi-chamber bag has the functional area, the functional area has an opening, in particular a punch-out, which extends through areas of the flat sides and the dividing wall and which provides a reinforced carrying handle. In particular, the carrying handle is thereby formed by regions of the flat sides which are arranged above the opening and which are reinforced by regions of the dividing wall. The reinforcement on the handle by means of the partition counteracts tearing of the partition on the handle and makes the multi-chamber bag more comfortable to carry.

According to a preferred embodiment, the multi-chamber bag has at least one perforation at which the multi-chamber bag can be torn open in order to provide a release aid. Thanks to the perforation, a simple rupture and a simple removal of chamber contents is possible.

According to a preferred embodiment, the multi-chamber bag has at least one re-closure, which provides a reclosable access to at least one of the chambers. Thanks to the resealable access, protected storage of the contents of the chamber is possible even after the multi-chamber bag has opened.

According to an advantageous embodiment, the partition wall is formed like a tube. In this case, sections of the hose provide the side edges of the partition. The partition is thus formed double-layered and thus reinforced.

Independently claimed further is a bag roll with a plurality of multi-chamber bags according to the invention, wherein the flat sides and the partitions of adjacent multi-chamber bags are each connected to each other. A film web according to the invention is suitable for the production of multichamber bags according to the invention and has at least one outer film for providing the flat sides and at least one inner film at least partially multi-layered between the flat sides, especially welded to the flat sides, to provide the partition.

According to a special embodiment of the bag roll perforations are provided between the individual multi-chamber bags, where the multi-chamber bags can be separated from each other. Alternatively, the multi-chamber bags are separated by a cutting process when they are to be removed from the bag roll.

Furthermore, a method for producing the multi-chamber bag or bag roll according to the invention is claimed. In this case, the partition is at least partially multi-layered, in particular double-layered arranged between the flat sides at least in the region of the cross-link to be produced. Subsequently, we made the cross-connection, thereby the partition in the region of the cross-connection is at least partially fixed in several layers between the flat sides.

Further developments of the method will become apparent from the foregoing description of the multi-chamber bag and the bag roll. Further embodiments of the invention will become apparent from the claims and from the illustrated with reference to the drawings embodiments. In the drawings show:

1 a multi-chamber bag according to an embodiment of the invention in a front view;

2 a section through the multi-chamber bag of 1 in the area of a cross connection;

3 the unfolded multi-chamber bag of 1 in a view from below;

4 the multi-chamber bag of 1 in a sealed condition and with welded corners and

5 an unfolded multi-chamber bag according to another embodiment of the invention in a view from below.

1 . 2 and 3 show a multi-chamber bag 1 according to an embodiment of the invention. The multi-chamber bag 1 has a first chamber 2 and a second chamber 3 on, for example, can be filled with animal feed, chemicals or building materials. The chambers 2 and 3 are between a first flat side 4 and a second flat side 5 arranged when the multi-chamber bag 1 according to 3 unfolded. The flat sides 4 and 5 as well as a first narrow side 6 and a second narrow side 7 be from an outer foil 8th of the multi-chamber bag 1 provided. Your in the 2 and 3 right side arranged side edges are welded together. Thus, a first page margin 9 the first narrow side 6 with the first flat side 4 connected, a second margin 10 the first narrow side 6 with the second flat side 5 connected, a first margin 11 the second narrow side 7 with the first flat side 4 connected and a second margin 12 the second narrow side 7 with the second flat side 5 connected.

To increase the stability of the multi-chamber bag 1 the corners are welded along the multi-chamber bag. In particular, not only is that for the connection of the outer film 8th necessary weld in the area of the first side edge 11 the second narrow side 7 provided, but there are also welds in the area of the side edges 9 . 10 and 12 intended. Next is the multi-chamber bag 1 in the area of an upper margin 13 abgeschweißt.

Above the chambers 2 and 3 is a cross connection 14 , For example, in the form of a weld, arranged, which a transverse boundary for the chambers 2 and 3 is and the chambers 2 and 3 from one above the cross connection 14 arranged functional area 15 separates. 2 shows a section through the multi-chamber bag 1 in the area of this cross connection 14 in a view from below or as at 3 ,

Between the flat sides 4 and 5 is a partition 16 with a first margin 17 and a second margin 18 arranged. In the area of the first margin 17 is the dividing wall 16 by means of a first longitudinal connection 19 in the form of an adhesive bond to the first flat side 4 glued. In the area of the second margin 18 is the dividing wall 16 by means of a second longitudinal connection 20 in the form of a second adhesive bond to the second flat side 5 glued. Alternatively, the partition 16 to the flat sides 4 and 5 be welded. The narrow sides 6 and 7 and the partition 16 have corresponding widths and are each continuous, in particular centrally folded in the longitudinal direction. As a result, takes the unfolded or filled multi-chamber bag 1 according to 3 a box-shaped shape. In the area of the cross connection 14 is the dividing wall 16 , like out 2 visible, double-layered between the flat sides 4 and 5 fixed.

The partition 16 is over the cross connection 14 upwards through the functional area 15 guided. This is the dividing wall 16 also partially in the range of a carrying handle 21 arranged in the functional area 15 is provided. The carrying handle 21 is through an opening 22 provided in the form of a punched out. The partition 16 reinforces the carrying handle 21 , which thus at least partially with the flat sides 4 and 5 and the folded partition 16 is formed four-ply.

Near the cross connection 14 is above the first chamber 2 a first perforation 23 in the outer foil 8th intended. There is also a second perforation 24 in the. outer film 8th in the area of the cross connection 14 over the second chamber 3 intended. At the perforations 23 and 24 can the multi-chamber bag 1 or can the chambers 2 and 3 be opened. The narrow sides 6 and 7 can below below the perforation 23 respectively. 24 be folded outwards and thus provide a Ausschütthilfe. Alternatively or in addition to the perforations 23 and 24 can the multi-chamber bag 1 Have reclosures, which is particularly advantageous for larger containers to the contents of the chambers 2 and 3 Protect from dehydration or keep fresh for longer.

4 shows the multi-chamber bag 1 after its closure with a lower side edge formed as a weld 25 which, like the upper margin 13 , as cross connection correspond to the cross connection 14 can be viewed. Alternatively or in addition to the lower margin 25 can be a solid floor for the multi-chamber bag 1 be provided. By welding off 26 and 27 are corners on the multi-chamber bag 1 formed in which vents 28 and 29 in the first flat side 4 and / or in the second flat side 5 are attached.

5 shows a multi-chamber bag 1 in a representation analogous to 3 , The partition 16 is different from 3 formed hose-like. One of the tubular partition 16 The formed interior can either be ventilated or closed and form an air buffer.

All the features mentioned in the preceding description and in the claims can be combined in any selection with the features of the independent claims. The disclosure of the invention is thus not limited to the described or claimed combinations of features, but all meaningful combinations of features within the scope of the invention are to be regarded as disclosed.

LIST OF REFERENCE NUMBERS

1

Multi-chamber bag

2

first chamber

3

second chamber

4

first flat side

5

second flat side

6

first narrow side

7

second narrow side

8th

outer film

9

first margin (the first, narrow side)

10

second margin (the first narrow side)

11

first margin (the second narrow side)

12

second margin of the second narrow side)

13

upper margin (of the multi-chamber bag)

14

cross connection

15

functional area

16

partition wall

17

first margin (the partition)

18

second margin (the partition)

19

first longitudinal connection

20

second longitudinal connection

21

handle

22

opening

23

first perforation

24

second perforation

25

lower margin (of the multi-chamber bag)

26

Abschweißung

27

Abschweißung

28

venting slot

29

venting slot

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• EP 1264588 B1 [0004]
• DE 10030983 B4 [0005]
• EP 0190385 A1 [0005]
• DE 7908132 U1 [0005]

Claims (18)

Multi-chamber bag containing at least two chambers ( 2 . 3 ), with a first flat side ( 4 ), with a second flat side ( 5 ), with at least one between the flat sides ( 4 . 5 ) arranged partition ( 16 ), which the chambers ( 2 . 3 ), and with at least one cross-connection ( 14 ), which the flat sides ( 4 . 5 ) to form a transverse boundary of the chambers ( 2 . 3 ) fixed to each other, wherein the partition ( 16 ) in the region of its first side edge ( 17 ) with the first flat side ( 4 ), in the region of its second side edge ( 18 ) with the second flat side ( 5 ) and in the area of the cross-connection ( 14 ) between the flat sides ( 4 . 5 ), characterized in that the partition wall ( 16 ) in the region of the cross connection ( 14 ) at least partially multi-layered, in particular double-layered, between the flat sides ( 4 . 5 ) is fixed. Multi-compartment bag according to claim 1, characterized in that the partition wall ( 16 ) at least in the region of the cross-connection ( 14 ) is folded at least once. Multi-compartment bag according to claim 1 or 2, characterized in that at least one of the flat sides ( 4 . 5 ) is in one piece, in particular ropeless, is formed. Multi-compartment bag according to one of the preceding claims, characterized in that the multi-chamber bag ( 1 ) between the flat sides ( 4 . 5 ) arranged narrow sides ( 6 . 7 ), which the multi-chamber bag ( 1 ), the narrow sides ( 6 . 7 ) in the area of their respective first margin ( 9 . 11 ) with the first flat side ( 4 ) and in the region of their respective second margin ( 10 . 12 ) with the second flat side ( 5 ) are connected. Multi-compartment bag according to claim 4, characterized in that the narrow sides ( 6 . 7 ) in the region of the cross connection ( 14 ) at least partially multi-layered, in particular double-layered, between the flat sides ( 4 . 5 ) are fixed. Multi-compartment bag according to claim 4 or 5, characterized in that the narrow sides ( 6 . 7 ) at least in the region of the cross-connection ( 14 ) are folded at least once. Multi-compartment bag according to one of claims 4 to 6, characterized in that the partition wall ( 16 ) at most one and a half times the width of the narrow sides ( 6 . 7 ) having. Multi-compartment bag according to one of the preceding claims, characterized in that the partition wall ( 16 ) independent of the flat sides ( 4 . 5 ) and to the flat sides ( 4 . 5 ), in particular glued or welded, is. Multi-compartment bag according to one of the preceding claims, characterized in that the material of the partition ( 16 ) from the material of the flat sides ( 4 . 5 ) is different. Multi-compartment bag according to one of the preceding claims, characterized in that the partition wall ( 16 ) has a barrier material, which is a mass transfer between the to the partition ( 16 ) adjacent chambers ( 2 . 3 ) counteracts. Multi-compartment bag according to one of the preceding claims, characterized in that the chambers ( 2 . 3 ) under the cross-connection ( 14 ) are arranged, that the multi-chamber bag ( 1 ) one above the cross-connection ( 14 ) arranged functional area ( 15 ) and that the partition wall ( 16 ) between the flat sides ( 4 . 5 ) also by the functional area ( 15 ). Multi-compartment bag according to claim 11, characterized in that the functional area ( 15 ) an opening ( 22 ), in particular punched out, which extends through areas of the flat sides ( 4 . 5 ) and the partition ( 16 ) and a reinforced carrying handle ( 21 ). Multi-chamber bag according to one of the preceding claims, characterized in that the multi-chamber bag at least one perforation ( 23 . 24 ), at which the multi-compartment bag ( 1 ) is torn open to provide a release aid. Multi-compartment bag according to one of the preceding claims, characterized in that the multi-chamber bag ( 1 ) has at least one re-closure, which has a resealable access to at least one of the chambers ( 2 . 3 ). Multi-compartment bag according to one of the preceding claims, characterized in that the partition wall ( 16 ) is formed hose-like. Bag roll with a plurality of multi-chamber bags according to one of the preceding claims, wherein the Flat pages ( 4 . 5 ) and the partitions ( 16 ) adjacent multi-chamber bag are connected to each other. Film web for the production of multi-chamber bags ( 1 ) according to one of claims 1 to 15, with at least one outer film for providing the flat sides ( 4 . 5 ) and with at least one at least partially multi-layered between the flat sides ( 4 . 5 ), in particular with the flat sides ( 4 . 5 ) welded, inner film for providing the partition ( 16 ). Method for producing a multi-chamber bag according to one of claims 1 to 15 or a roll of bags according to claim 16, wherein the partition wall ( 16 ) at least in the region of the cross-connection ( 14 ) at least partially multi-layered, in particular double-layered, between the flat sides ( 4 . 5 ) and subsequently the cross-connection ( 14 ) and thereby the partition ( 16 ) in the region of the cross connection ( 14 ) at least partially multilayered between the flat sides ( 4 . 5 ) is fixed.

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