WO2001044055A2

WO2001044055A2 - Packaging material-saving, reclosable receptacle, sealing edge bag or the like

Info

Publication number: WO2001044055A2
Application number: PCT/EP2000/012684
Authority: WO
Inventors: Laskowski Sigismund
Original assignee: Laskowski Sigismund
Priority date: 1999-12-15
Filing date: 2000-12-14
Publication date: 2001-06-21
Also published as: AU3011001A; WO2001044055A3; DE19960676A1

Abstract

The invention relates to a packaging material-saving, reclosable, bag-shaped receptacle or a sealing edge bag (1), which can be used for pouring the contents thereof in a targeted manner and to a method for producing, filling, closing and reclosing said receptacle after utilization. According to the invention, a bag-shaped receptacle (1) consists of a particularly quadratic, rectangular or polygonal blank (2), whereby a closed, bag-shaped receptacle if formed from said blank (2) by at least partially assembling and connecting two of its edges (24), which start at one common point, whereby said blank (2) is a single piece. A first common contact area (4) is formed by assembling said two adjacent edges, the contact area being permanently connected in the form of a crown (8). Two additional, adjacent edges (26', 27') define a free segment (15) and are moved by their common limiting point (12) towards the crown (8) of the first contact area (4), whereby the parallel halves (26, 27) of said edges (26', 27') form two additional contact areas 26 , 27 ) that are also permanently closed after the receptacle has been filled. The receptacle disclosed in the invention makes it possible to save up to 60 % packaging material and up to 50 % energy can be saved by closing the sealing edge using ultrasound sealing or bonding. The receptacle according to the invention can be used for receiving powder, granular or pourable products or pasty, liquid or gelated products to be poured.

Description

Packaging material-saving, reclosable container, sealed pouch or the like

The invention relates to a packaging material-saving, reclosable bag-like container or sealed-edge pouch, which can also be used for the targeted scattering of its contents, and to a method for its production, filling, sealing and reclosing after use.

In particular, for packaging food, but also other consumer goods, it is known to use packaging in the form of bags or sealed edge bags made of composite material, film, paper or the like.

Here, for example, a first blank is used as a base on which the product to be packaged is applied in doses. Then a second blank is placed on top of the first, lower blank, including the product on it, and permanently joined together along the sealing edges, e.g. by means of ultrasound, welding or previously appropriately applied adhesive. Since the product is to be positioned very precisely on the lower blank, it is in the form e.g. a cone attached to it. The conical base area resulting from the metering quantity and the spreading radius of the product due to the fact that the upper blank is placed on it requires a relatively large area of the blank in order to be able to arrange the edge zones to be connected with certainty outside the metered product, since e.g. Product particles located in the glue or the sealing zone would have a sensitive and negative impact on the sealing process. This applies equally to other sealing methods.

For example, packaging that uses relatively little packaging material can usually be explained for small amounts of content that entail a considerable amount of waste. In addition, the large-area containers caused by the filling process described also mean high energy consumption when the edge zones (sealing edges) are welded, as is known from the most frequently used sealing edge bags. With a correspondingly large bag area, the edge section to be sealed (length of the sealing edge) increases.

It is also often not possible to remove the remains of a donation from the edge of the seal, as it is stuck there. A secure reclosing of such a sealed edge bag after a partial consumption of its contents is hardly possible without aids. The present invention is based on the object of proposing a container, a filling and closing method adapted to it and its reclosing method with which the disadvantages described in the prior art are eliminated.

This task is done by a bag-like container according to the proposed

Claims 1 and 2 solved.

A method for filling and closing the container is in the claim

11 reproduced.

A method for reclosing the container after a partial removal of its contents is given in claim 12.

Appropriate refinements and advantageous developments are in the

Subclaims marked.

A bag-like container consisting of a particular square, rectangular or polygonal blank is proposed, the blank being formed into a closed, bag-like container by at least partially merging and connecting two of its edge sides, which start from a common point, and the The blank is in one piece and a first common contact zone is formed by merging these two adjacent edge sides and is permanently connected to form a vertex, and two further mutually adjacent edge sides delimit a free section and are fed with their common boundary point onto the vertex of the first contact zone, the Edge sides each with their parallel edge side halves form two further contact zones, which are also permanently sealed after the container has been filled.

The container according to the invention achieves savings of up to 60% in packaging material and up to 50% of energy can be saved by using the sealing edge closure by means of ultrasound or welding. The size of the necessary packaging material is reduced by optimizing the volume. The protection of the contents is also improved, since the walls of the container according to the invention are arranged far apart. At the same time, a lockable reclosability is made possible with improved handling. The container according to the invention provides better protection of the contents against crumbs.

The container according to the invention is suitable both for holding powdery, granular or giant egg-shaped goods and for pasty, liquid or gelled donated goods.

The products packaged in this way can be removed from the same container according to the invention at once or in portions and thus form an inexpensive disposable spreader, which in particular e.g. when supplying passengers or the like can improve current handling. A loss of quality is almost impossible due to the lockable reclosability, if required, without tools, compared to the state of the art.

The invention can be used not only to replace the conventional sealed edge bags (sealed edge bags) but also folding boxes, since the container according to the invention also provides sufficient stability of the base and thus stability and stackability. The reclosable bar with locking also has the advantage that larger quantities of product can be filled into the container, especially since the shape of the container offers greater stability than most folding boxes, which the consumer keeps for a longer period of time even after the container has been opened can be without fear of unwanted distribution or loss of quality.

In an expedient embodiment of the invention it is provided that the contact zones (connection zones) which later form sealing edges are glued. The application of the adhesive is free of the product, since it is applied and used in the first step before filling the product and in the second step after the product has been filled in such a way that the contact zones (adhesive zones) have no contact with the filling product.

In other expedient refinements of the invention, the contact zones (connection zones) can be welded by means of ultrasound, heating, etc., in particular sealing edges can be formed here. Through a funnel-shaped design of the container and dispensing with the spreading radius, the cut for the same content, much smaller than in the prior art, can still be selected, and yet a precise spreading of the content and multiple reclosure with locking on the container can be carried out. A quick removal of all of its contents is also guaranteed by opening the bottom.

An advantageous embodiment of the invention provides that a bottom of a container is directed upwards and is used as a resealable metering and spreading tip. For this purpose, a marking, tear-off line or built-in weak point can be provided on the outside of the cut, along which the sole is cut off or torn off. Also a sole perforated in the toe area, the holes in their unused state using e.g. of a peelable cover piece, each container is converted into a conventional but very inexpensive disposable spreader and, like the previously proposed feeding solutions, is the subject of this invention.

A special feature of this invention is that the free section delimited between the edge side halves forms a base of the container. Because the bottom is an integral part of the container blank, a relatively rational folding technique can be used to form the container.

On the one hand, according to the invention, it is expediently provided that:

- The three contact zones of the molded container have a common starting point;

- The common starting point of the contact zones is the apex of the first contact zone, and that

- The contact zones formed by the mutually parallel edge side halves of the blank are delimited by the apex of the contact zone on one side and by one of the center points of the edge sides including a folded or folded edge.

As a result, according to the invention, a funnel-shaped container is created which has a reduced length at connection points, ie contact zones to be glued or welded. This ensures, among other things, that the container according to the invention consists of a shaped or folded blank of a versatile jacket.

For the purpose of facilitated closing and shaping technology, the invention provides that a connecting edge is formed by the edge-side zones of the inner surface of the blank. These are at least partially angled and / or bent to form a support edge (contact zones).

By closing the contact zones formed from edge side halves, the bottom of the container is permanently attached to them, whereby it runs straight or curved outwards in the area in which the two bottom sealing edges meet with the apex. This inventive design of the bottom when closing the container serves to achieve the best possible connection between the contact zones with minimal use of material and energy.

In order to achieve a straight course of the bottom after the container has been closed, one contact zone must overlap (cross with) the other in its contact area before the two contact zones of the bottom are permanently connected.

According to the invention, if the two contact zones forming the apex, in their area facing the opening, are permanently connected in a straight line and by means of an obliquely inwardly directed weld seam, the floor in its area adjoining the apex must curve outward to ensure a tight connection between guarantee the contact zones. The leveling of the bottom, which is also according to the invention, is achieved by at least one kink at the apex, which must originate from the common point from which the two bottom sealing edges and the apex originate and meet one another.

Preferably, the container is resealable on its sole by being rolled up or folded up at least once expediently after its previous opening, and can be locked by a lateral folding of the seal edge (crown) first formed, which is not a condition, however. It is further provided that at least the inside of the blank consists of a material suitable for food intake, the blank being able to consist of composite material, foil, cardboard or paper-like material, as mentioned before. If no food is packed in the containers according to the invention, the food-safeness of the packaging material can be dispensed with.

In an expedient embodiment of the invention it is provided that the blank is provided, at least on its inside, with a coating which protects the containing product from diffusion and absorption.

Another advantage of this invention is that both the contact zones between the edge side halves can be separated to form a dispensing opening and the sole of the contact zone can be at least partially removed to form a metering and scattering opening. This enables the property of the entire, portionwise or scattered removal of the content already mentioned at the beginning.

The invention also includes a method for filling and closing the bag-like container, in which an approximately square, rectangular or polygonal blank is formed into a round or angular funnel by merging two first edge sides adjacent and having a common point, and is joined by connecting the merged edge sides closed jacket is only formed upwards at the funnel edge. The container is filled via this jacket opening and the container base can be formed by folding or folding in further adjacent edge sides, for example by halving them, feeding their common limit point onto the edge sides previously formed and covering them with the section forming the base and then connecting them.

The reverse order also means that after the formation of a round or angular funnel, its edge side halves are bent or bent into two contact zones and only then is the funnel-shaped interior filled and then the connection of the contact zones to firm bottom sealing edges, as described above, is made. By means of these methods, container formation and filling or dosing are carried out or separated from one another in such a way that they can in no way influence one another, as is the case, for example, in the case of the prior art shown, where the cut size depends on, for example, the product's scattering cone. The invention is not limited to solid, granular and giant-shaped products. Rather, the bag-shaped container can also hold liquid and flowable substances, since the product is filled into the trough-shaped container with a closed jacket and only the bottom, which is in the uppermost layer, has to be closed. Of course, the necessary free spaces must also be observed in this filling process, so as not to contaminate the contact zones with product particles and thus not adversely affect the connection quality of the sealing edges.

Another important feature of the invention is the guaranteed tight connection in the area where the two bottom sealing edges and the apex of a sealed edge pouch meet. This is achieved by reworking it in a further step, if necessary and before it comes into contact with the filling product, e.g. by means of two suitably pressed and shaped rollers, which move from any area of the apex, move in the direction of the common point and beyond, and thus the areas that form the sealing edges and the apex, tight and permanent in the area of the common point connect with each other. According to the invention it is provided that, if necessary, the floor area is fixed in the area of the common point by means of e.g. is given a thin ledge which is arranged perpendicular to the surface of the bottom and which forms such an extension of the apex that when the above-described process is carried out, it prevents the region of the common point from kinking off the apex and, if appropriate, can be loud Invention, the rollers press these areas to the side of this bar and also drive over them.

It is important that the connection area from which the areas of the sealing edges are later formed does not come into contact with the contents of the container before or during this process, which can be influenced by the position of the common point and by the positioning of the filling opening.

According to the invention, a filling opening can also be in the area of the common point, or else in the area of the apex, e.g. perpendicular to it, the areas of the container forming a filling opening, both during the filling process and when closing it, must each be above the filling level of the product.

The present invention is explained in more detail using various exemplary embodiments with reference to the accompanying figures, but is not restricted. Show

Figure 1 to Figure 3 blanks for a container according to the invention, sealed edge bag, etc.;

FIG. 4 shows a blank which has been redesigned into a funnel-shaped body

Perspective;

Figure 5 shows a funnel-shaped body with angled edge side halves in perspective;

FIG. 6 shows a funnel-shaped body in the edge side halves which overlap according to FIG. 5.

7 top view from the direction "X" of FIG. 6;

Figure 8 side view of a funnel-shaped body in the bottom seal edges by means of an obliquely inward glue or weld seam ends;

Figure 9 top view from the direction "Y" of Figure 8;

Figure 10 shows a finished sealed edge bag with a straight line

Floor in perspective;

FIG. 11 shows a finished sealed edge bag with an angled bottom in perspective;

Figure 12 shows a sealed edge bag in its user position with tear line and holes in the sole, in perspective;

FIG. 13 shows a sealed edge bag with the bottom straightened and during the formation of a closure (step I);

FIG. 14 shows an enlarged detail from FIG. 13 in which the folded section was locked (step II). 1 shows a blank (2) for a later sealed edge container (1) or the like, in which the angle (α.) Is exactly 90 °. Furthermore, the fold line (23) is indicated, around which the later base (15) is folded or folded. The equally large sections (a) divide two straight edge sides into two halves (27 and 27 ') and (26 and 26'), whereby an angled or bent contact zone (26 and 27) is formed from edge side halves (26 and 27).

FIG. 2 shows a blank (2) for a later sealed edge container (1) or the like, in which the angle (α) is less than 90 °. Furthermore, the fold line (23) is indicated, around which the later base (15) is folded or folded. The equally large sections (a) divide two angled edge sides into two halves (27 and 27 ') and (26 and 26'), an angled or bent contact zone (26 and 27) being formed from edge side halves (26 and 27).

FIG. 3 shows a blank (2) for a later sealed edge container (1) or the like, in which the angle () is greater than 90 °. Furthermore, the fold line (23) is indicated, around which the later base (15) is folded or folded. The equally large sections (a) divide two angled edge sides into two halves (27 and 27 ') and (26 and 26'), an angled or bent contact zone (26 and 27) being formed from edge side halves (26 and 27).

FIG. 4 shows a blank (2) which has been converted into a funnel-shaped body, in which the first sealing edge (4) is permanently connected and ends with an obliquely downward adhesive or welded seam (31), that is to say that after it has been folded over or bending the edge side halves (26 and 27) into contact zones, during the formation of the bottom the tip of the bottom-forming section (12) lifts off the bottom (15).

FIG. 5 shows a funnel-shaped body with angled edge side halves (26, 27) in perspective, in which, contrary to FIG. In this embodiment, the bottom (15) that can be formed later runs in a straight line. FIG. 6 shows a funnel-shaped body in which edge side halves (26, 27) overlap according to FIG. 5, shown in a side view. The arrangement of the sole (28) and the section (15) forming the bottom is visible. Despite the fact that the angled or bent contact zones run at a certain angle, the bottom (15) formed later runs at the same angle, but without elevations.

FIG. 7 shows a plan view from the direction “X” of FIG. 6. The overlapped area (30) is clearly visible. The starting points (19, 20), which divide the entire edge sides into the edge side halves (26, 27), can also be seen. The straight running adhesive or weld seam (3), which was created by overlapping the contact zones (26 and 27), is shown here.

FIG. 8 corresponds to FIG. 6 with the difference that the funnel-shaped body is produced by means of a sealing edge (4) which ends with an adhesive or weld seam (31) which runs obliquely inwards. The angle (β) at which the bottom tip (12) stands out from the rest of the bottom (15) can be seen here. Soil made (15) must be straightened over its entire surface, which, like the previous features, is an important part of this invention.

FIG. 9 shows a plan view from the direction “Y” of FIG. 8. The glued or welded seam (31) running obliquely downwards / upwards is clearly visible. The starting points (19, 20), which divide the entire edge sides into the edge side halves (26, 27), can also be seen. The section (15) forming the bottom, which merges into the sole (28), is also shown here.

FIG. 10 shows a finished sealed edge bag (1) with a rectilinear bottom (15) in perspective. The overlapped area (30), the starting points (19) and (20), the bottom seal edges (26 ") and (27") and the apex (sealing edge) (4) are clearly visible. The application-reversed position of the base (15) is characteristic of the filling and closing process, which according to the invention is always to be carried out with an upward opening of a funnel-shaped interior (32). Figure 11 corresponds to Figure 10, with the difference that the tip region (12) of a finished sealed edge bag (1) stands out from the bottom (15). Here too, as in FIG. 10, the common point (8) is visible, in which all three sealing edges (4, 26 ", 27") meet, or originate from this point (8). In order to create a stable bottom (15), the tip area (12) must be straightened, in which there is a kink on the sealing edge (4) and in the immediate vicinity of the area (12) so that the bottom (4) 15) is adequately mountain-covered on its entire surface.

Figure 12 shows a sealed edge bag (1) in the application position and with the tear line (33) and holes in the sole (29). The holes (29) should be positioned as close as possible to the tip (9) in order to allow the sealing edge bag (1) to be emptied completely using the holes (29). If the tip area (9) is torn off along the tear-off line (33) from the sealed edge bag (1), the donated goods can be sprinkled in a targeted manner through the opening thus created.

FIG. 13 shows a sealed edge bag (1) with a straightened bottom (15), since a kink (14) was made at the apex (sealed edge) (4) and during the formation of a closure (step I) in which a Point area (9) facing section of the sealed edge bag (25) was folded or rolled up. The folding or rolling up of this area takes place after opening the sealed edge bag (1) e.g. by tearing off its tip area (9) along the tear line (33). According to the invention, a closure consists of e.g. folded section (25) which can optionally be additionally locked by folding the sealed edge (4), which is also folded, which can be clearly seen in FIG.

FIG. 14 shows an enlarged detail from FIG. 13, in which the rolled-up section (25) was locked in place by folding over the likewise rolled-up sealing edge (4) (step IT). LIST OF REFERENCE NUMBERS

1. Container (sealed edge bag or pouch)

2. one-piece cut

3. straight adhesive or weld seam

4th parting (seal edge)

7th edge

8. common point

9. Tip area of a container

12. Point area of a section forming the bottom

13. Sloping inward tip area of a floor

14.Kink at the crown (to straighten the top of the ground)

15. Bottom / section forming the bottom

19. Center point of the edge (starting point)

20. Center point of the edge side (starting point)

23. Fold or fold line

24. adjacent edge sides (contact zone)

25. folded section

26. adjacent edge side half (contact zone) 26 '. adjacent edge side half (contact zone)

26 ". Bottom seal edge

27. adjacent edge side half (contact zone) 27 '. adjacent edge side half (contact zone)

27 ". Bottom seal edge

28. Sole

29. Holes in the sole

30. overlapped area

31. diagonally inward gluing or welding seam

32. funnel-shaped interior

33. tear line a - length of an edge side half

I - first step in the formation of a closure

II - second step (provided to form a lock) α - angle between the adjacent edge side halves ß - angle between the edge of a vertex and the bottom surface in the tip region

Claims

claims

1.Seal edge container, sealed edge bag, sealed edge bag or the like formed from a one-piece cut to the desired shape, in which in particular a powder, granular, pourable, pasty, liquid or gelled good is packaged, characterized in that an at least square cut (2 ) has two edge sides (24) which can be connected to form a sealing edge (4) and two edge side halves (26, 26 ') and (27, 27') which can be connected to one another, which later have the sealing edge (4) and the sealing edges (26 '') and (27 '') with a common point (8).

2. The sealed edge container, sealed edge bag, sealed edge bag or the like is formed from a one-piece blank designed to the desired shape, in which in particular a powdery, granular, giant-shaped, pasty, liquid or gelled good is packed, characterized in that the sealed edge halves (26 ') and (27 ') a section (15) forming the bottom are arranged at an angle (α) to one another, this being less than 90 °, exactly 90 ° or greater than 90 °, while between the edge (7) and the oblique inward-running adhesive or weld seam (31) an angle (β) which stands out from the bottom (15) is formed, the size of which can likewise be between 0 ° and 180 ° and that the sizes of these angles (α) and ( ß) are independent of each other and have no interdependency.

3. sealed edge container, sealed edge bag, sealed edge bag or the like according to claim 1 and 2, characterized in that the interconnection of the adjacent edge side halves (26 and 26 ') and (27 and 27') after kinking or folding the portion forming the bottom (15th ) along a crease line (23), with their starting points (19, 20) positioned approximately in the middle of the longitudinal edges and between the edge side halves (26) and (26 '), and between the edge side halves (27) and (27') are.

4. sealed edge container, sealed edge bag, sealed edge bag or the like according to claim 1 to 3, characterized in that the center point (19) divides the longitudinal edge into two identical edge side halves (27, 27 '), while the center point (20) divides the longitudinal edge into two identical edge side halves (26, 26) divides, the edge side halves (27, 27 ') and (26, 26') in pairs can have the same or different lengths.

5. sealed edge container, sealed edge bag, sealed edge bag or the like according to claim 1 to 4, characterized in that the edge side halves (26 'and 27') and the crease line (23) limit the portion (15) forming the bottom.

6. sealed edge container, sealed edge bag, sealed edge bag or the like according to claim 1 to 5, characterized in that the sealing edges (4), (26 '') and (27 '') by means of the inner sides of the contact zones (24), (26), ( 26 '), (27), (27') can be formed, these being permanently and expediently connected by means of adhesive, welded seams, ultrasound or the like.

7. sealed edge container, sealed edge bag, sealed edge bag or the like according to claim 1 to 6, characterized in that from one and the same sealed edge container, sealed edge bag, sealed edge bag (1) or the like, the donated item can be removed in three different ways, namely;

- by opening the bottom (15), or;

- By means of the holes in the sole (29), and / or

- By tearing off the tip area (9) along the tear line (33).

8. sealed edge container, sealed edge bag, sealed edge bag or the like according to claim 1 to 7, characterized in that the size of the removal opening depends on the position of the tear line (33), the closer to the bottom (15), the larger the removal opening and vice versa.

9. sealed edge container, sealed edge bag, sealed edge bag or the like according to claim 1 to 8, characterized in that the sealed edge container, sealed edge bag, sealed edge bag (1) or the like simultaneously serves as transport packaging and as a disposable spreader.

10. sealed edge container, sealed edge bag, sealed edge bag or the like according to claim 1 to 9, characterized in that the holes in the sole (29) by means of a cover strip are protected permanently, but only once, and thus ensure an initial removal guarantee.

11. sealed edge container, sealed edge bag, sealed edge bag or the like according to claim 1 to 10, characterized in that the sealed edge container, sealed edge bag, sealed edge bag (1) or the like can be produced from paper, composite material, film, cardboard or the like.

12. sealed edge container, sealed edge bag, sealed edge bag or the like according to claim 1 to 11, characterized in that the apex (sealing edge) (4) must end in its area facing the bottom (15) with a straight-line adhesive or weld seam (3) if the adjacent edge sides (24) overlap in this area, or at an angle ( ß) must end when the adjacent edge sides (24) run straight to achieve a secure connection between the tip area (12) and the bottom seal edges (26 "and 27"), in the area of the common point (8).

13. A method for filling and closing a sealed edge container, sealed edge bag, sealed edge bag or the like, according to at least one of the preceding claims, characterized in that after the formation of the funnel-shaped interior (32) and the edge side halves (26 and 27) by means of kinking or folding, this Interior (32) is filled from above with a predetermined amount of donated goods so that the edge side halves (26, 27) remain free of donated goods, the donated goods being compressed as far as necessary in the interior (32), for example can be by means of vibration until a free space is provided between the level of the donated goods and the floor (15) that can later be formed, and then the section (15) is taut and bent or folded along the kick line (23) towards the common point (8) and that the edge side halves (26 and 26 ') and (27 and 27') which run parallel to one another can be permanently connected to one another and thus form the bottom sealing edges (26 '' and 27 '').

14. A method for reclosing a sealed edge container, sealed edge bag, sealed edge bag or the like according to at least one of the preceding claims, characterized in that the sealed edge container, sealed edge bag, sealed edge bag (1) or the like in which by means of severing the tip region (9) along a tear line (33) an opening is formed through which a donation is removed, this opening being arranged to be reclosable and lockable, in which the area (25) is first below the edge of the removal opening, approximately parallel to the edge and folded or folded at least once (step I) and then part of the folded area (25) including the sealing edge (4), or only the sealing edge (4) approximately parallel to the Longitudinal axis of the sealed edge container (1) is folded or folded.

15. A method for reopening a sealed edge container, sealed edge bag, sealed edge bag or the like according to at least one of the preceding claims, characterized in that the reopening of the sealed edge container (1) is carried out in the reverse order to the closing in claim 8, i.e. first of all the folded or bent sealing edge (4) is straightened - step H is reversed, and then the folded-up tip area (25) is completely unrolled until the opening edge is visible, by means of a manual shaping of the unrolled tip area (25) to a sufficiently large opening, donation goods can be withdrawn.