Packaging bag

Abstract

The invention relates to a packaging bag with a back part (2) and a front part (1, 1a, 1b) which are connected to each other at the lower end region and at the sides, wherein in the region of the upper end of the front part (1) an opening (3) which can be covered by a flap (4) is formed between the front part (1) and the back part (2), wherein the back part (2) comprises an overhanging area (2a) which has no connection to the front part (1) at the sides and which comprises the flap (4) which can be folded onto the front part (1), wherein the overhanging area (2a) has a first folding area (F1) lying above the opening (3) in which the overhanging area (2a) is partially folded onto itself at least once and glued, and the overhanging area (2a) has a second folding area (F2) adjoining the free end of the overhanging area (2a),in which the overhanging area (2a) is folded over itself at least once and glued, the second folded area (F2) forming the flap (4). The invention also relates to a block formed from a plurality of interconnected packaging bags, wherein adjacent packaging bags are connected in the opposing upper areas (F1a) of the respective first folded area (F1), in particular by adhesive bonding.

Description

[0001] The invention relates to a packaging bag with a back part and a front part, preferably each being made entirely or at least predominantly of paper, which are connected to each other at the lower end area and at the sides, wherein in the area of ​​the upper end of the front part an opening is formed between the front part and the back part which can be covered by a flap, wherein the back part includes an overhanging area which has no connection to the front part at the sides and which includes the flap which can be folded onto the front part and bonded to the front part by means of an adhesive strip.

[0002] The front and back parts are preferably planar, in particular arc-shaped elements, preferably partially folded elements, preferably made entirely or at least predominantly of paper or of a composite material comprising paper, in particular sheets of paper.

[0003] The connection between the front and back sections is located in an area of ​​the packaging bag where goods can be placed inside. The volume of the packaging bag is defined by the sections connected at the bottom and sides, as well as the top opening.

[0004] The overhang area is an area that is not covered by the front part; in particular, the overhang area has no connection to the front part, especially unless the flap is folded onto the front part.

[0005] In particular, the overhang extends upwards beyond the upper end of the front part, at least when the flap is not folded over the opening to cover it. Preferably, the fillable volume of the packaging bag is therefore not limited by this overhang, or, when the opening is covered, only limited upwards.

[0006] A packaging bag according to these characteristics is known from publication DE 10 2022 131 182 A1 of the same applicant.

[0007] The problem with this packaging bag is that the flap is formed from the entire overhanging area, leaving no parts of the bag above the flap that could be used to hold the bag manually or with other devices. Handling such a bag, for example before, during, and after filling it with goods, is therefore inconvenient.

[0008] It is therefore an object of the invention to further develop a packaging bag of the type mentioned at the outset in such a way that its use, in particular before and / or during and / or after filling, is improved.

[0009] This task is solved by the fact that the overhang area has a first folding area located above the opening, in which the overhang area is folded onto itself at least once and glued, and the overhang area has a second folding area adjacent to the free end of the overhang area, in which the overhang area is folded onto itself at least once and glued, the second folding area forming the flap.

[0010] The first folding area thus borders, in the direction of the opening, an area of ​​the back part that is covered by the front part and in which the back part is connected to the front part at the sides.

[0011] According to the invention, in the various folding areas, the overhanging section is folded onto itself with different sub-sections. This makes it possible to assign different functions to the two folding areas, namely, firstly, the function of improved use, such as improved handling or suspension, and secondly, the function of covering the opening.

[0012] According to the invention, the first folding area thus forms a reinforced area, located above the opening of the packaging bag, due to the glued folding of the transition area onto itself. The reinforcement is achieved by the fact that the thickness of this area is at least twice the thickness of the back section or the overhanging area.

[0013] According to the invention, the first folding area forms an area that lies above the flap and by which the packaging bag can be held, e.g. manually when filling with goods or by means of a device before or after filling.

[0014] Preferably, the overhang in the first folding section is folded onto itself exactly once. If the overhang is folded onto itself multiple times in the first folding section, it is preferably provided that the overhang is folded onto itself an odd number of times. A single fold results in a double layer, and, for example, a triple fold results in a quadruple layer. The odd number of folds ensures that, after the last fold, the portion of the overhang facing the free end extends downwards from the fold towards the opening of the packaging bag.

[0015] The first folding area can preferably be functionalized.

[0016] In its simplest application, this first folding area can, for example, be used to manually or with another gripping device grasp the packaging bag and conveniently fill the bag through the opening underneath.

[0017] In general, and particularly in this case, the flap formed in the second fold can preferably be placed on top of the first fold. The first and second folds can thus preferably be positioned overlapping. Manually, the first and second folds can then be grasped simultaneously, with the flap releasing the opening and remaining in this released position.

[0018] Another functionalization could, for example, provide that the packaging bag can be hung on a hanging device using the first folding area.

[0019] For this purpose, it is preferably provided that the first folding area includes at least one first through-opening. An element of a suspension device can be passed through such an opening, thus allowing the packaging bag to be hung. A through-opening is preferably a so-called Euro slot.

[0020] This is an elongated opening whose size and shape are standardized across Europe and described in the DIN EN 13010 standard. As a standardized through-hole, the Euro slot ensures that retail packaging can be securely attached to standardized hanging bars.

[0021] Preferably, the invention provides that between the folding areas there is an area of ​​the overhang in which it is not folded onto itself, in particular which includes the folding axis around which the flap can be folded.

[0022] This area therefore has only the thickness of the back panel and is thus more flexible than the folding areas, which have at least twice the thickness of the back panel. This arrangement also facilitates the aforementioned suitability of placing the flap formed in the second folding area onto the first folding area.

[0023] Preferably, the invention provides that a reinforcing strip is arranged in the first folding area. This ensures that the first folding area is thickened to more than twice the thickness of the backing. Tearing of the first folding area can thus be prevented even with heavy use.

[0024] Preferably, the reinforcing strip is arranged all around the at least one first through-opening in the first folding area. This prevents the through-opening from tearing in a suspended packaging bag, even when the packaging bag is heavily filled.

[0025] Alternatively, but also cumulatively, the invention preferably provides that a reinforcing strip is provided in the second folding area, in particular that the flap includes a reinforcing strip.

[0026] In all versions with reinforcing strips, it is preferably provided that the reinforcing strip is inserted between the folded sections of the overhang. However, it is also possible to position the reinforcing strip on the outside in a folded area. Preferably, the reinforcing strip extends over the entire width of the packaging bag.

[0027] In the area of ​​the preferably provided reinforcement strip, the sections of the overhang area that are folded towards each other are not bonded directly to each other, but indirectly via the reinforcement strip.

[0028] Each reinforcing strip is preferably made of paper or cardboard, in particular with a basis weight that differs from the basis weight of the backing part, preferably wherein the reinforcing strip has a higher basis weight than the backing part.

[0029] A preferred further development of the first folding section provides that it is divided into an upper and a lower section, the lower section comprising at least one through-opening, in particular a Euro slot. The aforementioned suspension can thus be located in this section. The section above can be functionalized or used in other ways.

[0030] Preferably, in this embodiment with upper and lower area of ​​the first folding area, the overhang area is folded and glued only once in the first folding area, further preferably, the reinforcement strip already mentioned at the outset is arranged only in the lower area of ​​the two areas in the first folding area.

[0031] Preferably, the upper section comprises at least one fastening element by means of which several packaging bags can be connected to one another. In technical terminology, the packaging bags can thus be blocked together by means of the upper section, which therefore forms a blocking area.

[0032] The invention thus also relates to a block comprising several connected packaging bags according to the invention, wherein adjacent packaging bags are connected in the opposing upper areas of the respective first folding area, in particular by adhesive.

[0033] Using the upper section, for example, a large number of packaging bags can be joined together to form a block from which individual packaging bags can be removed.

[0034] Preferably, particularly for this locking functionality, the at least one fastening element in the upper area is formed by a through-opening, by means of which several, especially empty, packaging bags can be arranged one behind the other on a support rod. Preferably, two fastening elements, especially through-openings, spaced apart in the direction of the width of the packaging bag are provided.

[0035] Cumulatively and alternatively to the previous embodiment, the invention can also provide that the at least one fastening means is formed by an adhesive strip, in particular a front or rear adhesive strip, by means of which several, in particular unfilled, packaging bags can be stacked and connected on top of each other.

[0036] Preferably, both types of fasteners are combined so that a large number of packaging bags glued together to form a block can be suspended. The aforementioned adhesive strip can, for example, be located between two spaced-apart openings and / or on the outside next to them.

[0037] It is particularly preferred that a weakening line runs between the upper and lower regions of the first folding area, along which the upper region can be separated from the lower region. In particular, the weakening line runs between the sides of the packaging bag, preferably across the entire width of the packaging bag.

[0038] Such a weakening line is preferably a perforation or a thinning of the material.

[0039] For example, such a packaging bag can be easily separated from a block of packaging bags by means of the lower part of the first folding area, to which the flap is also attached, and hung up separately using the opening in the lower area, e.g. after being filled with goods.

[0040] A preferred embodiment, which can be combined with all possible designs, provides that the front part has a first upper, non-transparent section adjacent to the opening and a second transparent section adjacent to or merging into the lower end, preferably wherein the second section is transparent across its entire width, and in particular made of glassine. This embodiment allows goods placed in the packaging bag to be visually perceived.

[0041] Another preferred method, which can be combined with all possible designs, provides that the back piece is folded over at its lower end area onto the lower end area of ​​the front piece by means of a single fold or an odd number of folds and glued to it.

[0042] Folding the bag over ensures a tight seal at the bottom, particularly because the adhesive strip between the back and front panels is located on the front side, away from the bottom of the bag. An odd number of folds also allows the thickness of the bag to be increased in the lower section.

[0043] Exemplary embodiments of a packaging bag according to the invention are described in more detail with reference to the figures. Figure 1 shows a packaging bag according to the invention in a top view of the front. Figure 2 shows the packaging bag according to the invention in a side sectional view. Figure 3 shows another packaging bag according to the invention in a top view of the front. Figure 4 shows the packaging bag according to the invention of the Figure 3 in lateral section view

[0044] All directional information mentioned below and above, such as top, bottom or side, refers to a usage state of the packaging bag in which the opening is located above the bottom of the packaging bag.

[0045] The Figure 1 and 2Figure 1 shows the same packaging bag according to the invention in a first embodiment in two different views. This packaging bag has a front part 1 and a back part 2. The front part 1 is made in two parts and comprises a first upper, non-transparent section 1a adjacent to the opening 3 and a second transparent section 1b adjacent to or merging into the lower end section, preferably wherein the second section 1b is transparent over its entire width, in particular made of glassine.

[0046] The back part 2 is folded forward at the bottom onto the front part 1 with a multiple fold 12 and glued to it.

[0047] In the side areas, the overlapping sections of front part 1 and back part 2 are also bonded together, especially on the inner surface areas near the edges that face each other.

[0048] For the invention it is essential that the back part 2 extends upwards above the opening 3 of the packaging bag into an overhang area 2a which has no connection to the front part 1, at least not as long as the flap 4 is not placed on the front part 1 or even glued on.

[0049] This overhanging area 2a has a first folding area F1 in which the overhanging area 2a is partially folded onto itself and glued. This first folding area is functionalized according to the invention and serves to facilitate the use of the packaging bag.

[0050] The overhanging section 2a has a second folded section F2 at its free end, in which the overhanging section 2a is also partially folded over itself and glued. This second folded section F2 forms the flap 4, which can be used to cover the opening 3. The flap 4 can preferably be pressed into an adhesive bead 13 on the front part 1 to cover the opening.

[0051] The two folding areas F1 and F2 are connected in a space between them 5, in which the overhanging area 2a is not folded over itself. In this area, which has the thickness of the back section 2, lies the folding axis 6, around which the flap 4 can be folded, in particular over the opening or upwards into a position that partially overlaps the first folding area F1.

[0052] In the embodiment shown here, the first fold area F1 is subdivided into an upper area F1a and a lower area F1b. These two areas F1a and F1b are separated from each other by a weakening line 7, e.g., a perforation, which allows the upper area F1a to be separated from the lower area F1b and thus from the rest of the packaging bag. The weakening line 7 is positioned at the same height in each of the two opposing sub-areas of the overhang area 2a in the first fold area F1.

[0053] The first folding area F1 is functionalized by the fact that a perforation is arranged in the upper area F1a as a fastening means through two through-openings 8 spaced apart in the width direction. This allows the packaging bag, preferably together with other adjacent packaging bags, to be arranged on a holding device. For use, individual packaging bags can then be separated at the weakening line 7 and used, e.g., filled.

[0054] Preferably, it can be provided that in the upper area F1a of the first folding area F1, in particular between the through-openings 8, at least one adhesive strip 9 is arranged as a further fastening means, e.g. on the back part 2, by means of which several consecutive packaging bags of the type shown can be bonded together and form a block from which individual packaging bags can be separated.

[0055] Another functionalization is provided in the lower region F1b of the first folding region F1 by the fact that it has a through-opening 10, e.g. a Euro slot. By means of this through-opening 10, a remnant of the packaging bag according to the invention, separated from the upper region F1a, e.g. after filling and after closing the opening 3, can be hung on a support rod.

[0056] To reinforce the suspension area, a reinforcing strip 11 is inserted into the lower area F1b of the first folding area between the folded sections of the overhang area 2a, through which the passage opening 10 also leads.

[0057] The Figures 3 and 4 show a packaging bag of another embodiment according to the invention. This embodiment differs from the embodiment of the Figure 1 and 2This is only possible because the first folding region F1 is not divided into an upper and a lower region with different functionalities. The folding region F1 shown here corresponds in its function and characteristics to the lower region F1b of the Figure 1 and 2 All other characteristics that belong to the Figure 1 and 2 The descriptions also apply to the execution of the Figures 3 and 4 to.

[0058] In the sectional views of the Figures 2 and 4 The gaps between the folded or overlapping elements are shown only to better illustrate the individual elements. These gaps do not exist in an actual packaging bag.

Claims

1. Packaging bag with a back part (2) and a front part (1, 1a, 1b), preferably each being made entirely or at least predominantly of paper, which are connected to each other at the lower end and at the sides, wherein in the area of ​​the upper end of the front part (1) an opening (3) which can be covered by a flap (4) is formed between the front part (1) and the back part (2), wherein the back part (2) comprises an overhanging area (2a) which has no connection to the front part (1) at the sides and which comprises the flap (4) which can be folded onto the front part (1) and is preferably adhesively connectable to the front part (1, 1a, 1b) by means of an adhesive strip. characterized by the fact thatthe overhang area (2a) has a first folding area (F1) lying above the opening (3), in which the overhang area (2a) is folded onto itself at least once and glued in certain areas, and the overhang area (2a) has a second folding area (F2) adjoining the free end of the overhang area (2a), in which the overhang area (2a) is folded onto itself at least once and glued in certain areas, wherein the second folding area (F2) forms the flap (4).

2. Packaging bag according to claim 1, characterized by the fact that the first folding area (F1) includes at least one first through-opening (10), in particular a Euro hole.

3. Packaging bag according to any of the preceding claims, characterized by the fact thatbetween the folding areas (F1, F2) lies an area (5) of the overhang area (2a) in which it is not folded onto itself, in particular which includes the folding axis (6) about which the flap (4) can be folded.

4. Packaging bag according to any of the preceding claims, characterized by the fact that a reinforcing strip (11) is provided a. in the first folding area (F1), preferably in an area all around the at least one first through-opening (10) in the first folding area (F1) and / or b. in the second folding area (F2), in particular wherein the reinforcing strip (11) is inserted between the folded partial areas of the overhang area (2a), preferably wherein the reinforcing strip (11) extends over the entire width of the packaging bag.

5. Packaging bag according to any of the preceding claims, characterized by the fact thatthe first folding area (F1) is divided into an upper (F1a) and a lower area (F1b), wherein the lower area (F1b) includes at least one first through-opening (10), in particular a Euro slot, and the upper area (F1b) includes at least one fastening means (8, 9) by means of which several packaging bags can be connected to each other.

6. Packaging bag according to claim 5, characterized by the fact that that at least one fastening means (8, 9) in the upper area (F1a) is formed by: a. a through-opening (8) by means of which several, in particular unfilled, packaging bags can be arranged one behind the other on a support rod, and / or b. an adhesive strip (9), in particular a front or rear adhesive strip (9) by means of which several, in particular unfilled, packaging bags can be connected stacked on top of each other.

7. Packaging bag according to claim 5 or 6, characterized by the fact thatA weakening line (7) runs between the upper and lower areas (F1a, F1b) of the first folding area (F1), in particular between the sides of the packaging bag, preferably across the entire width, at which the upper area (F1a) can be separated from the lower area (F1b).

8. Packaging bag according to any of the preceding claims, characterized by the fact that the front part (1) has a first upper non-transparent part (1a) adjacent to the opening and a second transparent part (1b) adjacent to or transitioning into the lower end area, preferably wherein the second part (1b) is transparent over its entire width, in particular made of parchment.

9. Packaging bag according to any of the preceding claims, characterized by the fact thatthe back part (2) is folded over at its lower end area onto the lower end area of ​​the front part (1) by means of a single fold or an odd number of folds and glued to it.

10. Block formed from a plurality of interconnected packaging bags according to claim 5, wherein adjacent packaging bags are connected in the opposing upper regions (F1a) of the respective first folding region (F1), in particular by adhesive.

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