WO2013037586A1

WO2013037586A1 - Self-standing bag and method for producing a self-standing bag

Info

Publication number: WO2013037586A1
Application number: PCT/EP2012/065929
Authority: WO
Inventors: Tobias Greif; Rainer Komp; Dirk Meissner; Carina Kammerer
Original assignee: Robert Bosch Gmbh
Priority date: 2011-09-14
Filing date: 2012-08-15
Publication date: 2013-03-21
Also published as: DE102012214447A1; EP2755900A1

Abstract

The invention relates to a self-standing bag (1) comprising a tubular bag element (2) which is folded together into a closure surface (5) and is closed at the top (3) and comprising a base element (9) which closes a lower opening (10) of the bag element (2). The self-standing bag (1) is capable of standing upright when the base element (9) is facing downwards, and the base element (9) comprises an opening device (12).

Description

Description title

Stand-up pouch and method for producing a stand-up pouch prior art

The present invention relates to a stand-up pouch, an arrangement comprising at least two of the stand-up pouches, as well as a method for producing the self-standing pouch from a tube.

The prior art knows stable bags whose production is based on the tubular bag principle. In this case, a flexible packaging material web is pulled over a hollow mold tube and formed into a tube. At the outlet of the forming tube is formed by means of folding the stand or block floor, in which the gussets V-shaped retracted and the bottom is sealed. After filling the package, this is closed at the top. Furthermore, there are in the prior art can-shaped packaging, in which the hull may also consist of flexible material. These previously known cans comprise two closure elements, which on both sides of the

cylindrical hull be applied. These three parts of the can-like packaging have to be exactly matched to one another and connected together in a very precise manufacturing process. For both types of packs, product removal takes place over the top of the pack.

Disclosure of the invention

The stand-up pouch according to the invention with the features of claim 1 has an increased stability against prior art flexible packaging. Stability is understood to mean that the bag without falling over, in the filled and / or empty state on a flat, horizontal Surface stands. Furthermore, the stand-up bag according to the invention facilitates the removal and improves the stackability of the contents. Compared to conventional stand-up pouches by the novel shape

Savings of packaging material possible. Due to the form of the package, an enlargement of the presentation area is also achieved and the

Stand-up bag according to the invention is distinguished by its appearance from the previous forms. These advantages are achieved by a

A stand-up pouch comprising a tubular bag member folded and closed at the head side to a closure surface, a bottom member closing a bottom opening of the bag member, the stand-up pouch having the bottom member facing downward, and wherein the bottom member comprises an opening device.

Thus, according to the invention, the opening device from which the contents of the self-supporting bag can be removed is located in the bottom thereof. By attaching the separate floor element is the stability and the

Stability of the self-standing bag according to the invention even given in the unfilled state. On the folded closure surface is the

Stand-up pouch not stable. The fact that products always settle on the floor makes it easier to remove the product as it does not need to be gripped or turned upside down. For

oxygen-sensitive filling materials can be minimized by partial removal of the resulting cavity by rolling the bag member, in particular formed as a film, and the air intake can be reduced. The

Presentation surface of the pack increases due to the omission of the

Narrow side, as is common in previously known stand-up pouches. With the novel design of stand-up bags packaging material can be saved, since the bag element at the lower opening no longer to

Closing is folded. The opening device in the floor element can be designed very individually depending on the product and requirement.

The dependent claims show preferred developments of the invention.

In particular, it is preferably provided that the bottom element comprises a plane standing surface formed to stand the self-supporting bag. This flat footprint is the component projecting furthest down from the entire stand-up pouch. The flat footprint can either be in the Opening device, such as a lid, or be formed in a part surrounding the lid of the bottom element. The

Floor element forms a flat base. The flat base is preferably annular. As an alternative to this flat footprint in the bottom element, it is provided that the bag element, in particular fully peripherally, on the

Bottom protrudes beyond the bottom element and the stand-up pouch on this protruding part of the bag element is stable.

Furthermore, it is preferably provided that the bottom element is stiffer than the bag element. In particular, the bottom member is stiffer than a foil from which the bag member is formed. Preferably, a rigid or semi-rigid plastic or paperboard or a composite material is used for the bottom element. It is preferably provided that the contour, in particular the outer contour of the

Floor element round or oval or lenticular or or rectangular or polygonal is formed. The lower opening of the tubular

Bag element is located on this contour of the bottom element circumferentially, so that the lower portion of the bag member by the contour of the

Floor element is also brought into a round or oval or lenticular or polygonal shape. The lenticular configuration has

in particular the effect that the presentation surface, for example compared to cylindrical packaging, is not too curved and thereby increases. In a round, oval, lenticular,

rectangular or polygonal trained bottom element, the

Stand-up pouches are produced on a mandrel wheel machine, which is particularly suitable for the cost-effective production of mass products.

In a particularly preferred embodiment, the opening device is easy to open without tools and preferably formed resealable. For this purpose, in particular, the opening device is designed as a lid in the bottom element. In particular, a locking between the lid and bottom element is provided for the resealability. Alternatively, a screw cap or a resealable film is provided. In a particularly preferred embodiment is located on the inside of the lid, a removal aid, the

Adhering in stand-up bag packaged elements is formed. This Removal aid is, for example, as a Velcro or adhesive surface

educated. Alternatively, a metering element is arranged on the lid.

It is preferably provided that the bag element has on the head side along the folded closure surface a top seam and at least one longitudinal seam extending from the bottom element to the top seam. Particularly preferably, the bag element comprises a longitudinally sealed edge or a fold parallel to and opposite to the longitudinal seam. Particularly preferably, this fold is also sealed with a weld or adhesive seam. All seams preferably run continuously, so that a liquid and / or gas-tight

Closure of the stand-up pouch is possible. The seams are going through

Welding and / or sealing produced.

In addition, the bottom element is preferably also gas and / or

sealed in a liquid-tight manner with the bag element. This sealing is preferably done by means of sealing and / or welding. The bottom element is inserted into the lower opening of the bag element and gas / liquid-tight sealed / welded over the circumference. The invention further includes a stand-up pouch assembly having at least two of the stand-up pouches just described. The two stand-up pouches of the stand-up pouch arrangement are spatially separated from one another by a longitudinal seam. In particular, there is a dividing line between the two stand-up pouches, e.g. between the two longitudinal seams a perforation, so that the two stand-up pouches can be separated from each other by the user without tools. This stand-up bag arrangement offers the possibility of the individual stand-up pouches with different

Products, for example, products with different

Flavors to fill. In the case of products to be stacked one above the other, the stand-up bag arrangement has the advantage that double stacks can be accommodated in spatially separate chambers and thus a clear sorting and column shape is maintained. The advantageous described in connection with the stand-up pouch according to the invention

Embodiments find correspondingly advantageous application to the

Stand-up bag arrangement according to the invention. The invention further includes a method for producing a

A stand-up bag made of a hose, comprising the steps of providing a hose open on both sides, closing a lower opening of the hose by means of a bottom element, filling the hose via a head-side opening of the hose, folding the hose to a closing surface on the head-side opening and closing the folded head , head-side opening. The under the

According to the invention stand-up bag described advantageous

Embodiments find correspondingly advantageous application to the process according to the invention for the preparation. In the process, in particular, a film tube is used, the two

is sealed opposite edges. One of the two edges represents the longitudinal seam. At the other edge there is a sealed edge or a fold. The two edges border the show - the back of the

Packaging off. Bottom side, the bottom element to the hose

brought in. The filling of the package takes place via the open head, which is then closed. The bottom element forms the footprint of the packaging. This is provided with an opening or closing part, taken over which the contents of the package and the package is closed again if necessary. The opening may vary depending on the product and requirement. The method is also suitable for

Dornradmaschinen, a film tube or bag from a

Make a bag cut on a folding mandrel. Particularly preferred in this case is the folding mandrel both in the preparation of the transverse seam and / or the seal with the bottom element to build up the necessary counterforce to the sealing force.

As a result, gas-tight sealing seams can be produced. Particularly preferably, the folding mandrel, for example, by suction to hold the

Floor element can be used, whereby the sealing process of the

Floor element further simplified with the film tube or bag blank.

drawing

Hereinafter, three embodiments of the invention will be described in detail with reference to the accompanying drawings. Showing: 1 shows a standing, inventive stand-up pouch according to a first embodiment,

Figure 2 is a bottom view of the tilted to the side inventive

Stand-up pouch according to the first embodiment,

Figure 3 is an interior view of a bottom element of

stand-up bag according to the first embodiment of the invention

FIG. 4 is an external view of the floor element of FIG

according to the first embodiment, Figure 5 tilted to the side, according to the invention

Stand-up pouch according to the first embodiment in the filled and opened state,

Figure 6 is a tilted to the side, inventive

Stand-up bag arrangement according to a second

Embodiment,

7 shows a standing, inventive stand-up pouch according to a third embodiment,

Figure 8 is a view of the base of the invention

Stand-up bag according to the third embodiment and Figure 9 is a representation of a manufacturing step of

Stand-up bag according to the invention according to the third embodiment.

Embodiments of the invention In the following, the first embodiment of the self-supporting bag according to the invention will be explained in more detail with reference to Figures 1 to 5.

FIG. 1 shows a standing upright bag 1. The upright bag 1 comprises a tubular bag element 2 and a bottom element 9.

The tubular bag element 2 is at a head side 3 to a

Closing surface 5 folded. At this closure surface 5 is a continuous linear top seam for sealing the tubular bag element 2. Alternatively, the closure surface may also be a contour. On a bottom side 4 is a lower opening 10 of the

Tubular bag element 2. On one side, from the lower opening 10 to the closure surface 5, there extends a lateral longitudinal seam 6 of the tubular bag element 2. Opposite this longitudinal seam 6 is a sealed edge 7. The tubular bag element 2 is produced in one piece from a film , As a result, the tubular bag member 2 is closed by the fold at the sealed edge 7. Opposite the sealed edge 7, the tubular bag element 2 is closed by means of the longitudinal seam 6. By the longitudinal seam 6 and a sealed edge 7 is a clear demarcation between the front and back of the

Stand-up pouch 1 scored.

In the lower opening 10, the bottom element 9 is inserted. The bottom element 9 is sealed or welded to the tubular bag element 2.

Figure 2 shows the stand-up pouch 1 tilted to the side. This is the result

Bottom side 4 of the floor bag 1 to see. The detailed structure of the floor element 9 will be shown below in FIGS. 3 and 4.

Figure 3 shows the bottom element 9 from the inside. FIG. 4 shows an external view of the floor element 9. For a better illustration, the tubular bag element 2 has been hidden in both figures. The bottom element 9 is formed lens-shaped. In this bottom element 9, the lid 12 is used as opening and closing device. The lid 12 comprises a circumferential bead 17, by means of which the lid 12 is latched in the bottom element 9. Furthermore, the lid 12 has a tab 13 for mounting the lid 12.

The bottom member 9 further comprises a circumferential collar 15, wherein the bottom member 9 and the collar 15 is a one-piece component. The

Floor element 9 is inserted into the lower opening 10 of the bag element 2. The dimensions are selected so that the bag element 2 bears against the outer contour of the bottom element 9. At the two pointed, opposite ends of this lens mold, the longitudinal seam 6 and the longitudinal seal 8 of the bag element 2 can rest well.

Figures 2 and 4 show that a peripheral edge of the lid 12 is formed as an annular, flat base surface 14. This flat base 14 is the on the bottom side 4 furthest protruding component of the

Stand-up pouch 1. This allows the stand-up pouch 1 to plan on this

Stand 14 stand. In the best case, the lid or the opening aid lies further inside or closes off with the bottom part 10, so that this

Standing surface forms. FIG. 5 shows the upright bag 1 in a position tilted to the side. Of the

Interior of the stand-up pouch 1 is filled here with coffee pods 19. The lid 12 is open. It is the inner surface of the lid 12 can be seen. On this inner surface of the lid 12 there is an extraction auxiliary element 18. This removal auxiliary element 18 is designed, for example, as a Velcro or as an adhesive surface or as a latching element for packaged elements. In this

Embodiment, the removal auxiliary 18 is a Velcro surface, which assumes a certain adhesion with the filter paper of the coffee pads 19. Because the stand-up pouch 1 according to the invention always stands on the bottom element 9, one of the coffee pads 19 inevitably slips on the inner surface of the lid 12 and thus on the removal auxiliary element 18. The user can thereby

Peel off cover 12 and place a coffee pad 19 directly from the inside surface of the

Remove lid 12.

FIG. 6 shows a stand-up bag arrangement 20 according to the invention in accordance with a second exemplary embodiment. This arrangement comprises two spatially separated stand-up pouches 1. Through the two longitudinal seams creates a spatial separation. In particular, located between the two longitudinal seams 6 is a separation aid, such as a perforation for separating the two stand-up pouch 1. The two stand-up pouches 1, 1 can also be formed from a single piece of film, in the middle of the

Longitudinal seams 6, 6 are formed. The film is placed for this purpose for sealing in the form of an eight.

Figure 8 shows a standing floor bag 1 according to a third

Embodiment. The stand-up pouch 1 in turn comprises a

tubular bag element 2 and now rectangular shaped

Floor element 9.

The tubular bag element 2 is on the head side 3 to the

Closing surface 5 folded. At this closure surface 5 is a continuous linear top seam for sealing the tubular

Bag element 2. At the bottom side 4 is the rectangular shaped lower opening 10 of the tubular bag member 2 for receiving the bottom element 9. The rectangular bottom side 4 passes over four side edges 20 of the tubular bag element 2 into the closure surface 5. The tubular bag element 2 is in one piece made of a film 22. In the lower opening 10, the rectangular bottom element 9 is inserted. The bottom element 9 is sealed or welded to the tubular bag element 2. FIG. 8 shows the inverted stand-up pouch 1 according to FIG

Bottom side 4 of the floor bag 1 to see. The rectangular

Floor element 9 comprises a lid 12, which is surrounded by a relative to the surface of the lid 12 projecting and surrounding this rectangular base surface 14. At one end of the

Floor element 9 is the tab over to the outside, so that the lid 12 can be opened more easily. Furthermore, the bottom part 9 comprises a circumferential collar 15. The outside of the rectangular collar 15 is connected to the tubular boot element 2. The inner side and the outwardly oriented portions of the sleeve 15 serve to receive and fix the lid 12. The outer contour of the lid 12 is for this purpose on the Inner contour of the sleeve 15 tuned to allow opening and reclosing.

The production of the upholstery bag 1 according to the third embodiment can be explained with reference to FIG. The stand-up pouches 1 are manufactured according to the so-called Donrad principle. In this case, the packaging material is supplied under pressure mark control in the mandrel wheel, cut and a

Bag blank 22 folded around a folding mandrel 20. Usually, the folding mandrel 20 has a rectangular cross-section. To produce the upholstery bag 1, the bottom part 9 is fed to the folding mandrel 20 at the end face via a feed device. By suction holes in the folding mandrel 20, the supplied bottom part 9 is fixed to the front side of the folding mandrel 20. The folding mandrel 20 with the

sucked bottom part 9 is moved to the next processing station. There, the bag blank 22 is fed for bag production under the folding mandrel 20. By folding tools, not shown, the bag blank 22 is folded around the folding mandrel 20 and formed a longitudinal seam fold. In this case, the bag blank 22 is also folded around the cuff 15 of the bottom part 9, which is located on the end face on the folding mandrel 20. In the next step, the

Sealed longitudinal seam 6 as shown in Figure 8. Subsequently, the folded bag blank 22 can be sealed to the bottom part 9. This is the folding mandrel

20 designed so that he can build the necessary counterforce to the sealing power. In this way, gas-tight sealing seams can be produced.

This principle is possible with other mandrel cross sections, such. B. a round, oval, lenticular, or polygonal trained Dorn. The finished sealed bag is withdrawn from the folding mandrel 20 and in a not shown

Passing filling and closing machine. There, the bag runs with the bottom side 4 down and is on the head side 3. Then the head side 3 is spread outwards and sealed. Preferably, the bottom part 9 is a plastic part. This can also be by means of a

Dornradmaschine a resealable stand-up pouch 1 in

produce cost-effective manner. This ensures that the bag can be gas-tight sealed to the bottom part 9, since the folding mandrel can build the corresponding counterforce in the seal.

Claims

Stand-up pouch (1), comprising:

a tubular bag element (2) which is folded and closed on the head side (3) to a closure surface (5), and a bottom element (9) which closes a lower opening (10) of the bag element (2), wherein the stand-up bag (1) with the bottom element (9) pointing downward, and wherein the bottom element (9) comprises an opening device (12).

Stand-up pouch according to claim 1, characterized in that the bottom element (2) has a support for standing up the pouch (1)

formed planar standing surface (14), wherein the flat base surface (14) of the entire stand-up pouch (1) furthest downwardly projecting component, or that the stand-up pouch (1) on a over the bottom element (9) protruding part of

Bag element (2) is stable.

Stand-up bag according to one of the preceding claims, characterized in that the bottom element (9) is stiffer than the bag element (2).

Stand-up pouch according to one of the preceding claims, characterized in that the contour of the bottom element (9) is round or oval or lenticular or rectangular or polygonal and the lower opening (10) of the bag element (2) circumferentially on the contour of the bottom element (9). is applied.

5. Stand-up pouch according to one of the preceding claims, characterized in that the opening device (12) is easy without aids and / or resealable.

6. Stand-up pouch according to one of the preceding claims, characterized in that the opening device (12) comprises a lid, in particular a resealable lid.

7. Stand-up pouch according to claim 6, characterized in that the lid (12) on the inside comprises a removal auxiliary element (18), which is designed for sticking / dosing in the base bag (1) packaged elements (19) or that the cover on the inside a

Has metering device.

8. Stand-up pouch according to one of the preceding claims,

characterized by a the bag element (2) head side

closing head seam and at least one from the bottom element (9) to the head seam extending longitudinal seam (6).

9. Stand-up pouch assembly (20) comprising at least two

Stand-up pouch (1) according to claim 8, which are spatially separated from one another via the longitudinal seams (6).

10. A method for producing a stand-up pouch (1) from a

Hose comprising the following steps:

Providing a hose open on both sides,

Closing a lower opening (10) of the hose by means of a bottom element (9),

Filling the hose via a head-side opening (3) of the hose,

Folding the hose to a closure surface (5) at the head-side opening (3), and

Closing the folded, head-side opening (3).

1 1. A method according to claim 10, characterized in that the

Bottom element (9) is supplied, the hose or a bag blank (22) is placed around the bottom element (9) and the hose or the

Bag blank (22) with the bottom element (9) is sealed.

12. The method according to any one of claim 10 or 1 1, characterized in that the bottom element (9) is fed to a folding mandrel (20), the

Bag blank (22) is placed around the folding mandrel (20) and the bag blank (22) with the bottom element (9) is sealed.

13. The method according to any one of claims 10 to 12, characterized in that the bag blank (22) is placed around a folding mandrel (20) and a longitudinal seam (6) is sealed. 14. The method according to any one of claims 10 to 13, characterized in that the bottom element (9) by a folding mandrel (20) is preferably held by suction.