WO2006089750A1

WO2006089750A1 - Tubular bag with a cover

Info

Publication number: WO2006089750A1
Application number: PCT/EP2006/001662
Authority: WO
Inventors: Andreas Michalsky
Original assignee: Huhtamaki Ronsberg, Zweigniederlassung Der Huhtamaki Deutschland Gmbh & Co. Kg
Priority date: 2005-02-25
Filing date: 2006-02-23
Publication date: 2006-08-31
Also published as: DE102005026903A1

Abstract

The invention relates to a tubular bag (10) having a tubular bag body (20), a cover (30) and, if appropriate, a base, in particular a base on which the tubular bag can stand upright, wherein at least the closed tubular bag body (20) is assigned at least one holding device (50) which interacts, in particular when the tubular bag (10) is opened, with a tensioning device (60) which is formed on the cover (30).

Description

"Tubular bag with lid"

Description

The invention relates to a tubular bag according to the preamble of patent claim 1.

Tubular bags of the type in question are well known and are used for storing, storing and transporting as well as bringing into circulation of liquid, pasty, powdery, free-flowing and solid contents substances, including u.a. the light weight and the ease of design and printability of these tubular bags and packages produced therefrom has proven to be extremely advantageous.

On the other hand, the opening behavior of these tubular bags or tubular bag packaging has proven to be problematic. Typically, the opening of such packaging is carried out by tearing the packaging, wherein usually a notch is provided in a lateral sealing seam, by means of which a further tearing of a tubular pouch film is initiated. Another possibility for opening such a package is that two side surfaces forming the tubular bag are pulled apart in the region of a seal, whereby the seal breaks open. However, these two opening variants have a serious disadvantage, which consists in the fact that the film forming the tubular bag ruptures aimlessly and uncontrollably at such a tear or tearing of the packaging, so that the contents of the package is spilled, which is particularly true for liquid and / or pasty content substances often leads to a loss of the packaged goods. Further, after such tearing, the interior is the tubular bag usually very difficult to access because torn or stopped packaging from cuts in the way and the access to the interior of the tubular bag, for example, with a spoon complicate. Even with a deliberate pouring of the contents of the packaging leftover packaging parts are often in the way, so that the packaging contents come into contact with external parts of the package, whereby the bag bag contents contaminated on the one hand and on the other can only be delivered uncontrollably.

A further opening variant is finally the use of a pair of scissors, by means of which an upper section of the closed tubular bag is removed and removed, so that the contents of the tubular bag become accessible, although this variant enables a clean separation of a tubular bag section closing the tubular bag There is also the problem that there must always be a pair of scissors at hand.Also, when using an unclean pair of scissors, there is the risk that the cut edges of the tubular bag and, if necessary, the

Dirty bag contents and possibly become unusable as a result.

The object of the invention is to provide a tubular bag of the type mentioned, which can be opened hygienically simple and without tools so that the tubular bag interior is easily accessible.

This object is achieved by a tubular bag according to claim 1.

In particular, the object is achieved by a tubular bag with a tubular bag body and cover and optionally floor, in particular standing or standing floor, wherein at least the closed tubular bag body at least one holding device is associated with a trained on the cover pulling device, in particular when opening the Tubular bag, cooperates.

An essential point of the invention is that the lid is sealed when closing the tubular bag body to this. During a subsequent opening of the tubular bag, the cover provided with the pulling device is pulled off the tubular bag body such that a part of the pulling device remains on the tubular bag body and serves as a holding device there. Thus, the Schlauchbeu- telkörper body can be held or fixed by means of the holding device, while the lid can be peeled or removed from the tubular bag using the pulling device. It is thus not necessary that the tubular pouch body itself with a Holding device is provided, since this is formed automatically with the closing of the lid with the sealing of the lid on the tubular pouch body at this and remains there during an opening operation as a counter holding device to the pulling device.

Preferably, the holding device and the pulling device are tab-shaped and / or annular, so that they can be easily grasped and held. Advantageously, thus opening the tubular bag is possible without the tubular bag itself must be taken and held. Accidental compression of the tubular pouch body is thus effectively prevented, since it is avoided that such a holding inevitably exerts a certain force on the tubular pouch body, whereby this compressed and the contents would be uncontrollably squeezed out of the tubular pouch body when opening the tubular bag. This is, as mentioned above, according to the invention thereby avoided that not the tubular bag body itself, but the attached thereto holding device, which cooperates with the formed on the lid and remaining pulling device is used as a stopping point to fix the tubular bag, while the lid of the Tubular bag is removed.

According to another disclosed embodiment of the invention, the holding and / or the pulling device with an annular recess, in particular punched, provided. This allows the hooking of a finger or a hook or carabiner. By hooking a phalanx into a respectively annular Haltebzw. Pulling device, the holding and opening of the tubular bag is further simplified.

Furthermore, by providing an annular holding or pulling device, it is also possible to simply hang or unhook the tubular pouch body on a hook, a string, a chain or the like, an elongate device. In this way, for example, a plurality of tubular bags according to the invention can be fastened to a belt or belt and, for example, carried along during a hike. To avoid unintentional opening of the tubular bag, the band, the chain or the like should be performed both by the annular holding and by the annular pulling device.

According to the invention, the pulling device is formed integrally with the lid, while the holding device is connected to the tubular bag body by sealing or gluing. that is. In particular, the lid and / or optionally also the bottom is sealed or glued to the tubular pouch body, in particular at least partially detachable.

Due to the possibility to design the holding device as part of the lid, which is assigned to this after sticking the lid in the tubular pouch body this and then remains at an opening of the tubular bag due to, for example, stronger seal or other pulling direction of this, it is possible to To produce tubular pouch body waste-free, since it can be dispensed with a separate training a tab on this, already in the production.

As already mentioned above, it is possible to make the strength of the sealing or adhesive connection between the apparent part of the lid and the tubular pouch body slightly weaker than corresponding seals which serve to form the tubular pouch body itself or by means of which the bottom is sealed into the tubular pouch body. Alternatively, it is possible to form the sealing of the lid circumferentially with the same sealing strength, wherein, for example, by a corresponding marking, a respective pulling direction of the different flap parts is displayed, so that only takes place due to this different pulling direction separation into a holding and a pulling device. In this case, the pulling direction for the holding device, for example, points radially away from the tubular bag, i. in an opposite direction than the pulling direction for the pulling device for opening the lid.

At this point it should be mentioned that a full-surface opening of the lid is possible. For this purpose, it is either possible to first open a part of the lid and then to use the exposed edge of the tubular pouch body itself as a holding device, while the second lid part is opened. According to a further variant, the tubular bag itself can be held at a filling of the tubular bag with solid components, while the entire tab, so both taken by a predetermined tear line separate areas of the tab and pulled to open in the direction of the lid, so that the lid detaches from the tubular bag body.

According to a further embodiment of the invention, the cover has at least one predetermined breaking point, in particular predetermined tear line, preferably in continuation of the lateral limitation of the pulling device formed on the cover, namely the tear-open tab. By the provision of such a predetermined breaking point, it is possible, if necessary, only a part of the lid, namely to remove the one that is located on the pull tab. The predetermined tear line can be designed in the form of a continuous predetermined tear line, so that the part of the lid located on the tear-off tab can be completely removed. According to a further variant, it is possible that the predetermined tear line is interrupted and thus vorgehgt practically in the form of two predetermined tear lines, which allow tearing open the part of the lid connected to the tear tab so far as the. Tear line extends, but not complete tearing of the cover part is possible, but this remains captive connected to the tubular bag, so that a separate disposal of this cover part is avoided.

The predetermined tear line can extend completely over the entire tubular bag cross section of the lid, so that the entire cross section of the tubular bag is accessible after being opened from above. Alternatively, it is possible to remove only one or optionally several subregions of the lid, each of these subregions having its own traction device. In this way, a ventilation option can be provided.

In this way, a detachment of the lid or lid parts of the hose bag body is easily possible, without any fear that when opening other seals of the tubular bag may be separated.

In order to be able to carry out opening of the tubular pouch body as simply as possible, the holding device on the tubular pouch body is arranged according to the invention on the lid region, next to the pulling device. To grasp the respective pulling or holding device, the overlapping tabs are individually grasped and pulled apart in opposite directions so that the lid detaches from the tubular bag body.

According to one embodiment, the tubular pouch body is formed by means of fin-seal and / or lap-seal sealing or, alternatively, extruded in a tubular manner, in particular seamlessly.

Furthermore, the tubular pouch body is preferably made of a laminate, in particular an aluminum laminate, with at least one sealing layer and optionally at least one barrier layer. The barrier layer is preferably made of SiO ₂ , AlO _x , ethyl vinyl alcohol (EVOH) or a metal foil. The lid and / or the bottom of the tubular bag have a predetermined, relatively rigid shape with sealable or adhesive edges and are deep-drawn according to a variant or formed according to another variant with a V or W-fold, so that the tubular bag bottom side preferably is formed steadfast and lid side is brought into a predetermined, mostly round shape. In addition, the use of a V- or W-shaped lid for reclosing the lid, if it has been torn open only half, wherein the V or W-fold of the lid due to a certain spring or restoring action of the V - or W-fold pushed back into its original position, which it occupies with closed tubular bag.

Of course, if it were desired that the lid be completely removed from the tubular bag, this would be possible with both a stiff or flexible round lid and a lid having a V or W fold.

According to the invention, the lid and / or the bottom are made essentially of the same materials as the tubular bag body. This makes a very cost-effective production of the tubular bag possible, since both the lid and the bottom of the same film or the same laminate are produced as the Schlauchbeutel- body itself. For this purpose, either the later tubular bag body forming

Foil before forming the tubular pouch body or a portion of an extruded tube, which is separated from it to form the lid and the bottom. For example, it is possible to unilaterally seal such a short tube section to form a lid and / or bottom and then to introduce it into the tubular bag body, optionally with stretching of the same, and to connect it tightly, i. to seal or glue.

Both the cover and the bottom and / or the tubular pouch body have a thickness in the range of 50 .mu.m to 500 .mu.m, preferably 80 .mu.m to 400 .mu.m and particularly preferably 100 .mu.m to 350 .mu.m. In compliance with these measures, on the one hand a low weight and sufficient durability of the tubular bag is also guaranteed for carbonated bag contents. Further, the lid, the bottom and / or the tubular bag body can be sterilized, so that food and stimulants can be filled into the tubular bag and hygienically packaged therein.

Further embodiments of the invention will become apparent from the dependent claims. The invention will be described with reference to embodiments, which are explained in more detail with reference to the figures. Hereby shows:

Figure 1 is a schematic representation of a erfϊndungsgemäßen tubular bag together with the associated lid.

Fig. 2 is a schematic representation of Figure 1, wherein an initiation of the opening of the lid is indicated. and

Fig. 3 is a schematic representation of the tubular bag according to the invention according to Figures 1 and 2 with a partially opened lid.

In the following description, the same reference numerals are used for the same and equivalent parts.

Fig. 1 shows a tubular bag 10 according to the invention with a tubular bag body 20 and a sealed lid 30. The lid 30 comprises a holding device 50 and a pulling device 60, which are connected together to form a tab. The tab is provided approximately centrally with a predetermined tear line 70, which extends over the entire lid to the opposite side of the tubular pouch body 20 on.

2, the initiation of an opening of the tubular bag 10 according to the invention is indicated. As can be seen, the pulling device 60 along the predetermined tear line 70 of the holding device 50, which remains on the tubular bag body 20, shown separately.

To open the tubular bag 10, the holding device 50 is now grasped and held, while the detachable part of the lid is detached from the tubular bag body 20 by means of its pulling device 60. The separation of the cover takes place along the predetermined tear line 70, which leads to a predetermined breaking edge 70 '. When opening the

Tubular bag is thus removed the right half of the lid 30 shown in the drawing, wherein on the one hand, a separation of the lid 30 along the predetermined tear line 70 and on the other an opening of the sealed seam, with which the lid is sealed in the tubular bag body.

It should be noted at this point that all the parts described above are considered to be alone and in any combination, in particular those shown in the drawings Details as erfindungswes ^• be entlich claimed. Variations thereof are familiar to the person skilled in the art.

LIST OF REFERENCE NUMBERS

10 tubular bags

20 tubular bag body

30 lids

50 holding device 60 pulling device

70 desired tear line

70 'predetermined breaking edge

Claims

claims

1. tubular bag (10) with a. Tubular bag body (20) and cover (30), and optionally floor, in particular standing or standing floor, characterized in that at least the closed Schlauchbeύtelkörper (20) is assigned at least one holding device (50) with one on the lid (30) trained pulling device (60), in particular when opening the tubular bag (10), together ammenwirkt.

2. tubular bag according to claim 1, characterized in that the holding device (50) and the pulling device (60) as a tab and / or as

Ring are formed.

3. tubular bag according to claim 2, characterized in that the traction device (60) designed in particular as a tab at least one approximately in the pulling direction extending predetermined breaking point, in particular Solkeißlinie (70), by means of which an at least partial opening of the tubular bag (10) can be initiated ,

4. tubular bag according to one of claims 2 or 3, characterized in that the cover (30) has at least one predetermined breaking point, in particular predetermined tear line (70) along which an at least partial opening of the tubular bag (10) is possible.

5. tubular bag according to one of the preceding claims, characterized in that upon opening of the tubular bag (10), the holding device (50) on the

Tubular bag body (20) and the pulling device (60) to the lid (30) remains.

6. tubular bag according to one of the preceding claims, characterized in that the pulling device (60) is formed integrally with the lid (30).

7. tubular bag according to one of the preceding claims, characterized in that the cover (30) and / or the bottom with the tubular bag body (20), in particular releasably, is sealed or glued / are.

8. tubular bag according to one of the preceding claims, characterized in that the tubular bag body (20) by means of fin-seal- and / or by means of lap-seal-

Seal formed or extruded tubular.

9. tubular bag according to one of the preceding claims, characterized in that the tubular bag body (20) of a laminate, in particular aluminum laminate, with "at least one seal and optionally at least one barrier layer, preferably of SiO ₂ , AlO _x , ethyl vinyl alcohol or a metal foil, is made.

10. tubular bag according to one of the preceding claims, characterized in that the cover (30) and / or the bottom have a predetermined relatively rigid shape with sealable or adhesive edges and in particular deep-drawn or formed with a V or W-fold ,

11. tubular bag according to one of the preceding claims, characterized in that the cover (30) and / or the bottom are made substantially from the same materials as the tubular bag body (20).

12. tubular bag according to one of the preceding claims, characterized in that the cover (30), the bottom and / or the tubular pouch body (20) has a thickness in

Range of 50 microns to 500 microns, preferably 80 microns to 400 microns and more preferably 100 microns to 350 microns.

13. tubular bag according to one of the preceding claims, characterized in that the cover (30), the bottom and / or the tubular pouch body (20) can be sterilized.