EP3406539A1 - Dosing chamber bag - Google Patents

Abstract

The invention relates to a dosing chamber bag having a front wall (1) and a rear wall (2), which are connected to one another at a first side edge (3), a second side edge (4), a lower edge of the bag (5) and an upper edge of the bag (6) and with a partition wall (8), which is attached to an inner side of the bag on the front wall (1) and the rear wall (2) and in a bag transverse direction (q) sealingly extends to the two side edges (3, 4) to a Bag interior in the direction of the lower edge of the bag (5) in a reservoir chamber (11) and in the direction of the upper edge of the bag (6) into a metering chamber (12) to be separated, wherein the partition (8) has a crease line (14), two from the bending line (14) wegerstreckende wings (15) and a passage opening (13) and wherein the metering chamber (12) is arranged for a Füllgutentnahme. According to the invention, the crease line (14) faces the upper edge of the bag (6) in such a way that the wings (15) extend away from the crease line (14) in the direction of the lower edge of the bag (5). - Publish with Fig. 2.

Description

The invention relates to a metering bag, with which a pourable product, in particular a liquid can be metered by a user as needed.

Many pourable goods and in particular use liquids such as detergents or liquid detergents must be portioned or dosed for their use, so that the appropriate amount for the particular application is provided and on the one hand ensures adequate cleaning and on the other hand waste is avoided by excessive administration. To be able to dispense with separate dosing aids such as measuring cups or the like, metering chamber bags are already known, which are formed from a flexible bag film and allow through an internal cavity or a separated area, a portioning or dosage. Such Dosierkammerbeutel come without elaborate dosing, which are integrated, for example, in a screw cap. However, the handling of the known Dosierkammerbeutel is still in need of improvement.

The present invention is concretely of a Dosierkammerbeutel according to the EP 2 315 703 B1 out. The generic Dosierkammerbeutel therefore comprises a front wall and a rear wall, which are connected to a first side edge, a second side edge, a lower edge of the bag and an upper edge of the bag together. The dosing chamber bag further has a partition wall, which is attached to an inner side of the bag on the front wall and the rear wall and extending in a bag transverse direction sealingly to the two side edges, to a bag interior in the direction of the lower edge of the bag into a Reservoirkammer and to separate in the direction of the upper edge of the bag in a metering chamber, wherein the partition has a crease line, two wings extending away from the crease line and a passage opening as a single connection between the reservoir chamber and the metering chamber and wherein the metering chamber is adapted for a Füllgutentnahme.

The lower edge of the bag may also be referred to as a bag bottom and the upper edge of the bag as a bag head. In the context of the present invention, the two front walls can either adjoin one another directly at the lower edge of the bag and can preferably be connected by a sealed seam or by a separate bottom section, which also forms a floor.

The according to the EP 2 315 703 B1 V-shaped separating tape forms a kind of receiving trough or a basin for the product to be dosed. Either by turning over the metering chamber bag or by pressing on the reservoir chamber, the filling material, in particular a liquid, passes through the passage opening arranged in a wing into the reservoir chamber. If the Dosierkammerbeutel is then turned back so that the metering chamber is located above the reservoir chamber or if the pressure on the metering falls away, the filling level in the metering chamber, ie the amount of liquid to be metered, determined by the position of the passage opening. If the dosing chamber bag is being held or set up, excess contents present in the reservoir chamber, which is located above the passage opening, are directed back into the reservoir chamber. The storage height up to the passage then determines the volume provided for the dosage.

Based on this, however, the volume to be dispensed can also be varied. For example, by tilting the bag contents from the Dosing chamber passed to the passage opening and thus transferred into the reservoir chamber. Even by a slight compression of the reservoir chamber, the volume to be dosed can be selectively reduced by a user.

Despite these advantageous properties, the known configuration of the dosing chamber bag is still in need of improvement. Especially with a rotation through 180 °, the back pressure of the filling material can lead to an unwanted folding of the partition. There is then the danger that the passage opening is closed or at least the transfer from the reservoir chamber into the dosing chamber is made more difficult. Furthermore, even with a transparent embodiment of the front wall and the rear wall, the exact filling height in the region of the V-shaped partition is not always easy to recognize.

Against this background, the present invention has the object to improve the handling of a generic Dosierkammerbeutels.

The object of the invention and solution of the problem is a Dosierkammerbeutel according to claim 1.

Based on a generic Dosierkammerbeutel is therefore provided that the crease line is facing the upper edge of the bag such that the wings wegerstrecken from the bending line in the direction of the lower edge of the bag.

In the context of the invention results in a particularly reliable, easy handling. If the Dosierkammerbeutel is rotated by 180 ° for a transfer of the contents or if the reservoir chamber is pressurized, the resulting forces lead to a Pressing apart of the two wings of the partition, so that then always the entire passage opening is released and ready for the passage of the contents.

Because the crease line faces the upper edge of the bag and the wings extend away from the crease line in the direction of the lower edge of the bag, two receiving spaces are formed for metering the contents within the metering chamber, which adjoin the front wall and the rear wall, respectively. The filling level within the metering chamber can thus be very well recognized by a user, even if the front wall or rear wall usually formed from a bag film has a certain turbidity or coloration. In the context of the invention, it is also easily possible, for example, to provide a measuring scale on the front wall and / or the rear wall, at which point the filling volume within the metering chamber can then be checked and, if appropriate, precisely adapted.

In contrast to an embodiment according to the EP 2 315 703 B1 is even then still a precise dosage possible if the front wall and the rear wall are at least partially - for example, by an imprint - opaque and a transparent window in the region of the partition on the front wall and / or the rear wall is provided. Since, in the context of the invention, the front wall and the rear wall can be formed at least partially opaque, overall a better appearance can also be achieved. The front wall and the rear wall may be provided, for example, with a decor, manufacturer information and product information.

In the context of the invention it is preferably provided that the reservoir chamber and the metering chamber are separated from the partition wall as a membrane in such a way that the passage opening as the only connection between the reservoir chamber and the metering chamber is provided. The partition wall is then sealingly brought up to the two side edges.

In this regard, it is provided according to a preferred embodiment of the invention that the front wall and the rear wall are connected to each other at the side edges by longitudinal sealing seams, wherein the ends of the partition are also integrated into the longitudinal sealing seams to achieve a tight seal there. In the context of such an embodiment, the partition expediently ends in the longitudinal sealing seam. This means that the front wall and the rear wall have a slightly greater width in the transverse direction of the bag than the dividing wall. This ensures that the longitudinal sealing seams on the one hand tightly integrate the partition and on the other hand securely close the bag at its edge.

The front wall and the rear wall may be formed from a known, preferably multi-layered bag film. For example, bag films which have a sealing layer on one side and an outer or cover layer on the other side are suitable. For example, a sealing layer of polyethylene can be arranged on the inside of the bag, while a cover layer of polyethylene terephthalate forms the outside of the metering chamber bag. In such a bag film is a standard material, which on the one hand is inexpensive and on the other hand ensures sufficient stability. The thickness of the sealing layer may be, for example, between 40 .mu.m and 200 .mu.m, while a significantly smaller thickness of, for example, between 5 .mu.m and 20 .mu.m is provided especially in the case of an outer layer of polyethylene terephthalate. A typical construction which is also suitable within the scope of the invention is, for example, 100 μm PE / 12 μm PET.

As explained further below, in the manufacturing process, the dividing wall is usually initially placed on the front wall or the rear wall or a foil section of the bag foil forming the front wall or the rear wall, the sealing sealing of the dividing wall subsequently taking place.

It must be avoided that in such a subsequent sealing the two wings are welded together uncontrollably, so that then the metering chamber could not be spread.

Against this background, a multilayer film is also provided for the partition according to a preferred embodiment of the invention, which is attached to the wings with a sealing layer by sealing seams on the front wall or the rear wall, wherein the sealing layer in comparison to an opposite outer layer of the multilayer film has a smaller Has melting temperature. For example, a construction PE / PET is also suitable for the partition. The partition can thus also be formed from the same bag film, which is also provided for the front wall and the rear wall. Preferably, however, an overall thinner sheet material is used, which indeed ensures the membrane function, but has a better mobility. In contrast to the front wall and the rear wall, the stability of the partition without or of secondary importance for the handling and leakage protection of Dosierkammerbeutels. However, some stability of the partition wall is necessary in view of handling during the manufacturing process and avoidance of uncontrolled buckling during use. Accordingly, a thinnest but still stiff design is preferred.

According to the invention, the metering chamber is set up for a product removal. For example, at the metering chamber, in particular at the upper edge of the bag, a removal opening can be formed by tearing open. In the context of such a particularly simple embodiment, the dosing chamber bag is insufficiently protected against leakage. Therefore, an embodiment of the metering chamber bag with a reclosure is particularly preferred. In particular, a resealable pouring device can be provided on the dosing chamber for filling product removal. It comes into consideration z. B. a pour spout with a cap, a corresponding embodiment also already from the EP 2 315 703 B1 (Figure 11) is known.

In order to enable easy dosing and pouring, the dosing chamber is expediently designed asymmetrically with respect to a center of the upper edge. Thus, the pouring device described above can be offset starting from a center of the upper edge of the bag in the direction of the first side edge. The removal of filling material from the metering chamber is then possible with an open pouring device when the metering chamber bag is tilted in the direction of the first side edge.

The passage opening is expediently in the region of the bending line, in particular on the bending line. Upon rotation of the Dosierkammerbeutels by 180 ° is then the passage for the out of the reservoir chamber to be transferred contents at a lowest point.

According to a preferred embodiment of the invention it is provided that the wings of the partition are triangular or trapezoidal and have at the first side edge a greater length than at the second side edge. It is thus in the metering chamber obliquely in the direction of the first side edge extending receiving area formed, which contributes to a particularly simple handling and easy and accurate dosage. The passage opening is then in the context of such a configuration expediently offset from the middle of the upper edge of the bag in the direction of the second side edge, in particular immediately adjacent to the second side edge.

According to an alternative embodiment of the invention, the wings are designed rectangular. Accurate metering is then made more difficult than the previously described embodiment, but with regard to manufacture, the arrangement and sealing of a partition with rectangular blades may be easier.

In order nevertheless to be able to achieve the advantages described above at least in part, the rectangular wings may be connected via at least a part of their transverse width in the bag transverse direction by a connecting seam with the respective adjacent front wall or rear wall, wherein the connecting seam in a plan view of the front wall in the direction of the second margin increases.

The metering chamber bag according to the invention can be produced in various ways, wherein the dividing wall is expediently placed on a section during the production process, which subsequently forms the front wall or rear wall. In particular, continuous longitudinal and transverse processes can be considered. In a continuous bag process, the front wall and the rear wall can optionally be formed from a common film web or from separate film webs.

Fig. 1

eine perspektivische Ansicht eines befüllten Dosierkammerbeutel,

Fig. 2

einen Vertikalschnitt durch den befüllten Dosierkammerbeutel gemäß Fig. 1,

Fig. 3

der Dosierkammerbeutel gemäß der Fig. 1 in einem unbefüllten, flachliegenden Zustand,

Fig. 4 und 5

alternative Ausgestaltungen eines Dosierkammerbeutels in einer Ansicht entsprechend der Fig. 3,

Fig. 6

die schematische Darstellung eines Herstellungsverfahrens zur Bildung des Dosierkammerbeutels.

The invention will be explained in the following with reference to a drawing showing only one exemplary embodiment. Show it:

Fig. 1

a perspective view of a filled Dosierkammerbeutel,

Fig. 2

a vertical section through the filled Dosierkammerbeutel according to Fig. 1 .

Fig. 3

the metering bag according to the Fig. 1 in an unfilled, flat state,

4 and 5

alternative embodiments of a Dosierkammerbeutels in a view corresponding to Fig. 3 .

Fig. 6

the schematic representation of a manufacturing process for forming the Dosierkammerbeutels.

The FIGS. 1 and 2 show a filled Dosierkammerbeutel with a front wall 1 and a rear wall 2, which at a first side edge 3, a second side edge 4, a lower bag edge 5 and a bag bottom and an upper bag edge 6 or a bag head with each other directly or on the lower bag edge. 5 are interconnected by a bottom portion 7.

The dosing chamber bag further comprises a partition wall 8, which is attached as a membrane to an inner side of the bag on the front wall 1 and the rear wall 2 by sealing seams 9 and extends in a transverse direction of the bag q up to the two side edges 3, 4 zoom.

Especially in the Fig. 1 and in the Fig. 3 It can be seen that the front wall 1 and the rear wall 2 are connected to each other at the side edges 3, 4 by longitudinal sealing seams 10. The Fig. 3 shows that the partition along the transverse direction of the bag q is brought up to the side edges 3, 4, that ends of the partition 8 are integrated into the longitudinal sealing seams 10, so that there is a sealing separation between a arranged in the direction of the lower bag edge 5 Reservoir 11 and a arranged in the direction of the upper edge of the bag 6 dosing chamber 12 takes place.

According to the Fig. 3 is the only connection between the reservoir chamber 11 and the metering chamber 12, a passage opening 13 is provided, which is arranged adjacent to the sealing seam 10 of the second side edge 4.

The exact arrangement of the partition wall 8 results from a comparative consideration of Figures 2 and 3 , Accordingly, the partition 8 has a the upper edge of the bag 6 facing bend line 14, from which two equally designed wings 15 wegerstrecken in the direction of the lower edge of the bag 5. According to the Fig. 2 Thus, the configuration of an inverted V results, wherein the partition wall 8 is attached to the lower end of the wings 15 with the sealing seams 9 on the front wall 1 and the rear wall 2.

The Fig. 1 shows the Dosierkammerbeutel, wherein a liquid is as a filling material in both the reservoir chamber 11 and in the metering chamber 12. In an initially unfilled metering chamber 12, the entire metering bag can be rotated by 180 ° so that the metering chamber 12 is located below the reservoir chamber 11. Due to its own weight, the liquid product then passes through the passage opening 13 into the dosing chamber 12. If the dosing chamber bag is then turned back and set up, for example, excess contents run above the predetermined by the passage opening 13 backwater in the reservoir chamber 11, so that up to the filling height of the passage opening 13 a precisely predetermined amount of the contents can be provided.

For the removal of the filling material, a pouring device 16 in the form of a pouring spout with a closure cap is provided in the exemplary embodiment. Such a pouring device can be arranged, for example, on a bag corner assigned to the first side edge 3.

As an alternative to rotating the Dosierkammerbeutels by 180 ° (optionally with an open pouring device 16) and the reservoir chamber 11, a pressure to be exerted, so that the liquid product is transferred up through the passage opening 13 into the metering chamber 12. In the absence of pressure excess material can then flow back from the metering chamber 12 back into the reservoir chamber 11.

Regardless of whether the filling of the metering chamber is effected by pressure or by turning over the metering chamber bag, a user can also subsequently change the volume of the contents taken up in the metering chamber 12. For example, starting from the Fig. 1 To reduce the filling amount in the metering chamber 12, the Dosierkammerbeutel can be easily tilted in the direction of the second side edge 4, which then passed between the wings 15 of the partition 8 and the front wall 1 and the rear wall 2 amount of product partially back to the passage opening 13 is and can flow back into the reservoir chamber 11. Alternatively, a user can also use his fingers in the area of Partition 8 exert pressure to push out excess contents in the desired amount from the metering chamber 12.

Like in the Fig. 3 indicated, on the front wall 1 and / or the rear wall 2, a measuring scale 17 may be provided.

In this context, within the scope of the invention, the advantage that in the metering chamber, the filling material is located directly on the front wall 1 and the rear wall 2, so that the filling level can be read very well by a user, even if the front wall 1 and the Rear wall 2 are formed from a bag film 18, which has a certain haze or color. It is also possible, for example, to make parts of the front wall 1 and the rear wall 2 opaque, and z. B. to be provided with an imprint, in which case the filling level in the metering chamber 12 can be checked by a not shown in the figures window.

In order to be able to recognize the filling level in the metering chamber 12 particularly well, the dividing wall 8 can optionally be colored so that on the one hand a good contrast is achieved and on the other hand only the liquid contained in the metering chamber 12 is visible and a user can orient himself more easily. In particular, the color of the dividing wall 8 can be matched to the color of the liquid to provide a particularly large contrast.

In an enlarged section of the Fig. 2 are the bag film 18, which forms the front wall 1 and the rear wall 2, and the partition 8 is shown. The bag film 18 and the dividing wall 8 are each configured in a multi-layered manner and comprise a heat-sealable sealing layer 19, 19 'and an outer layer (20, 20'). The sealing layer (19, 19 ') may be formed, for example, of polyethylene and the outer layer of polyethylene terephthalate.

With regard to the partition wall 8 results in the context of such a configuration, the advantage that the corresponding sealing layer 19 'at the usual sealing temperatures on the front wall 1 and the rear wall 2 can be fixed without the outer layer 20' formed of PET melts. This avoids that at the height of the sealing seams 9, an undesired connection of the wings 15 takes place with each other.

The FIGS. 1 to 3 relate to a preferred embodiment of the invention, in which the wings 15 are trapezoidal and along the longitudinal sealing seams 10 at the first side edge 3 has a greater length than at the second side edge 4. The receiving spaces formed by the partition wall 8 extend obliquely in the direction of the first side edge 3, whereby a reduction of the filling amount in the metering chamber 12 by tilting or compression is particularly easy.

The integration of a partition wall 8 with trapezoidal or triangular wings 15, however, may be associated with increased manufacturing costs, depending on the manufacturing process of the dosing chamber bag. Against this background, the show FIGS. 4 and 5 alternative embodiments of the Dosierkammerbeutels, wherein the wings 15 are rectangular. The accuracy of dosing is at the in Fig. 4 However, on the other hand, however, results in a larger volume for Füllgutaufnahme in the metering chamber 12.

Finally, the shows Fig. 5 a compromise, according to which the wings 15 are connected by a connecting seam 21 with the adjacent front wall 1 and rear wall 2 over a part of their transverse width in the bag transverse direction q, which there better adapted in the direction of the passage opening 13 at an adaptation of the recorded amount of filling material becomes. In addition to the in Fig. 2 Sealing seams 9 shown so the connecting seams 21 between the sealing layers 19, 19 'of the partition 8 and the bag film 18 are formed.

The Fig. 6 merely shows by way of example a possible manufacturing process for the dosing chamber bag in a highly schematic representation. A film web 22 is fed in a production direction. With regard to the metering chamber bags to be produced, the production direction corresponds to the transverse direction of the bag q, which is why such a method is also called a transverse method. On the film web 22 partitions 8 are placed, in which case the film web 22 is folded to form the front wall 1 and rear wall 2 on itself. Furthermore, a region of the film web 22 is highlighted, which subsequently forms a bottom section 7 between the front wall 1 and rear wall 2 in the case of the individual metering chamber bags.

After applying the partitions 8 and the folding of the film web 22, the sealing seams 9 are produced for introducing the partition 8 and the longitudinal sealing seams 10.

Like in the Fig. 3 illustrated, the lateral ends of the partitions 8 are integrated into the longitudinal sealing seams 10. Then individual bag blanks can be separated from the film web 22. In principle, other longitudinal and transverse methods for the production of Dosierkammerbeutels also come into consideration.

Claims (11)

Dosing chamber bag having a front wall (1) and a rear wall (2), which at a first side edge (3), a second side edge (4), a lower bag edge (5) and an upper bag edge (6) are interconnected and with a partition (8) which is attached to an inner side of the bag on the front wall (1) and the rear wall (2) and extends in a transverse direction (q) to both side edges (3, 4) to a bag interior in the direction of the lower bag edge (5) into a reservoir chamber (11) and in the direction of the upper edge of the bag (6) into a metering chamber (12), wherein the dividing wall (8) has a crease line (14), two wings extending away from the crease line (14) ( 15) and a passage opening (13), and wherein the dosing chamber (12) is adapted for a filling material removal, characterized in that the bending line (14) faces the upper edge of the bag (5) such that the wings (15) of the bend line (14) in Direction of the lower edge of the bag (6) wegerstrecken. Dosing chamber bag according to claim 1, characterized in that the passage opening (13) in the region of the bending line (14) is arranged. Dosing chamber bag according to claim 1 or 2, characterized in that at the metering chamber (12) for filling material removal a pouring device (16), in particular a pouring spout with closure cap is provided. Dosing chamber bag according to claim 3, characterized in that the pouring device (16), starting from a center of the upper bag edge (5) in the direction of the first side edge (3) is arranged offset. Dosing chamber bag according to one of claims 1 to 4, characterized in that the wings (15) are triangular or trapezoidal and on the first side edge (3) has a greater length than at the second side edge (4). Dosing chamber bag according to one of claims 1 to 4, characterized in that the wings (15) are rectangular. Dosing chamber bag according to claim 6, characterized in that the wings (15) over at least part of their transverse in the bag transverse direction (q) width by a connecting seam (21) with the adjacent front wall (1) or rear wall (2) are connected, wherein the Connecting seam (21) in a plan view of the front wall (1) in the direction of the second side edge (4) increases. Dosing chamber bag according to one of claims 1 to 7, characterized in that the dividing wall (8) is formed by a multilayer film, which on the wings (15) with a sealing layer (19 ') by sealing seams (9) on the front wall (1) or the back wall (2) is fastened, wherein the sealing layer (19 ') has a lower melting temperature compared to an opposite outer layer (20') of the multilayer film. Dosing chamber bag according to one of claims 1 to 8, characterized in that the front wall (1) and the rear wall (2) on the side edges (3, 4) by longitudinal sealing seams (10) are interconnected, wherein the ends of the partition (8) in the longitudinal sealing seams (10) are integrated. Dosing chamber bag according to one of claims 1 to 9, characterized in that in the region of the partition wall (8) on the front wall (1) and / or the rear wall (2) a measuring scale (17) is arranged. Dosing chamber bag according to one of claims 1 to 10, characterized in that the front wall (1) and the rear wall (2) are at least partially opaque, wherein a transparent window in the region of the partition wall (8) on the front wall (1) and / or the Rear wall (2) are provided.

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