EP2345582A1 - Method for manufacturing a packaging bag - Google Patents

Abstract

The method involves forming a tube (15) by connecting two side edges (12, 14) by a longitudinal sealing seam (16). The tube is divided into partial tubes (22, 24) by another longitudinal sealing seam (18). One partial tube is continuously formed by connecting the side edges with a foil web (10) by the former longitudinal sealing seam. A bag package unit is formed in a form of package bags divided into bag chambers. A common longitudinal sealing seam is adjoined with ends at the sealing seams and attached at a distance to a transverse sealing seam (28). Ribs are made of plastic material.

Description

The invention relates to a method for the production of bag packaging units from a flexible film material, in which method from one of two side edges limited film web over a longitudinal sealing seam continuously a hose body is formed and from the hose body by alternately transversely to the longitudinal sealing seam mounted first transverse sealing seams and transversely to the longitudinal sealing seam and are formed substantially perpendicular and spaced from the first transverse sealing seams second transverse sealing seams tetrahedral-shaped packaging bag, wherein the second transverse sealing seams are placed in the region of a tetrahedral corner of the bag so that a substantially tubular ausgestalteter pouring part is formed.

There are tetrahedron-shaped packaging bag made of plastic coated cardboard for drinks known. For the beverage removal of the packaging bag is provided at one point, for example, with a closed by a film opening that can be pierced by a drinking straw. Other bags may be torn open along a perforation line to form a pouring opening. Furthermore, tetrahedral packaging bags made of a flexible film material for chocolate masses coated with a sugar mass are known. For opening, as in many pouches, there is a score notch in a sealed seam.

Out EP-A-1 547 935 is a method of the type mentioned for producing tetrahedral packaging bag made of a flexible sheet material known. In the area of a tetrahedral corner, the bag is provided with a substantially tubular spout protruding from the bag and closed at its free end.

There is an increasing desire for bag packaging units having two or more bag chambers with spout.

The invention has for its object to provide a method of the type mentioned that bag packaging units with at least two bag chambers can be made in a simple manner continuously from a film web.

The following two alternatives lead to the solution according to the invention for the formation of at least two bag chambers:

1st alternative

By connecting the two side edges over a first longitudinal seam, a hose is continuously formed and the tube is divided into at least two partial tubes via at least one further longitudinal sealing seam, and from the partial tubes by a common first transverse sealing seam and one each substantially perpendicular and at a distance from the first Cross-seam seam attached to each partial hose second transverse seal seam formed a bag packaging unit with at least two interconnected via the at least one further longitudinal sealing seam packaging bags each having a bag chamber.

The interconnected packaging bags may contain the same or different contents. The preferred products for these packaging containers include especially drinks of all kinds, semi-liquid products such. Yogurt, and free-flowing solids, e.g. Corn, semolina and the like. Grainy foods, coffee in bean and powder form, as well as washing powder.

2nd alternative

By connecting a side edge to the film web via a first longitudinal seam, a first part hose is formed continuously, and optionally by connecting the film web over at least one area between the first longitudinal seam and the second side edge and over the second side edge alternately with the first partial tube via a second longitudinal sealing seam and the first longitudinal sealing seam at least a second partial tube is formed, and from the partial tubes is by a common first transverse seal and a substantially perpendicular and at a distance for the first transverse sealing seam attached, with their ends adjacent to the longitudinal sealing seams common second transverse sealing seam formed a bag packaging unit in the form of a subdivided into at least two bag chambers packaging bag.

The bag chambers of this packaging bag are particularly suitable for receiving different contents which are to be mixed only during use or consumption. Among the preferred fillers for these packaging containers are mainly liquid, semi-liquid and pasty Füllguter, the z. B. are provided for direct removal in the mouth.

With the arrangement of a protruding from the bag spout in the region of a tetrahedron a packaging bag is created with a multifunctional opening that is suitable both as a drinking opening and for the metered removal of liquids and free-flowing products. In addition, there are the advantages of the tetrahedral form of the bag, which sits well in the hand and is extremely dimensionally stable and stable. Another advantage is that a once opened bag with the tetrahedron surface opposite the pouring part on a pad, e.g. On a table, can be turned off without leaking contents, since in this position, the pouring opening is at the highest point of the bag.

In a preferred embodiment, it is provided that the tubular discharge part is tapered conically in the pouring direction pointing away from the tetrahedral corner of the bag. The conical design of the pouring part has the advantage that, for example, when opening with a pair of scissors, the cross-section of the by cutting away the closed end of the Ausgiessteils transversely to the pouring spout resulting opening becomes larger with increasing distance of the cut from the free end of the spout. In this way, a suitable for a particular purpose metering opening can be set individually.

To facilitate the opening of the packaging bag without scissors or knife, at least one tearing notch extending transversely to the pouring direction may be provided, with at least two tearing notches arranged at different distances from the closed free end of the pouring part being arranged in a particularly expedient embodiment of the pouring part for providing metering openings of different cross section could be. In order to obtain a possible defined opening cross section, weakening lines can be provided in addition to the tear scores. The lines of weakness go from the top of the tear scores and revolve around the spout.

The pouring part protruding from a tetrahedral corner of the bag can be folded back, for example, against one of the bag surfaces in the case of an unopened packaging bag and fixed in the folded-down position by means of a pressure-sensitive adhesive arranged on the bag surface or on the pouring part. In this way, the spout is relatively well protected against mechanical damage during transport and storage of the packaging bag. After opening the packaging bag by severing the pouring part in the region of its free end is obtained by a suitable arrangement of the pressure-sensitive adhesive in conjunction with the folding or folding of Ausgiessteils a simple way to close the opened bag again. With this simple closure, at least in the case of free-flowing solid bulk materials, leaking of the contents when the package is tipped over can be effectively prevented.

In particular, when using the packaging bag as a beverage bag, it may prove to be expedient in the pouring a stiffening element, preferably a pipe piece made of plastic, to arrange. The tube piece assumes the function of a drinking straw in a beverage bag. In a preferred embodiment, the pouring part is not fixedly connected to the pipe piece from its closed end to a tear notch or tearing line, so that when the beverage bag is opened the pouring part can be removed from the bag via the pipe piece after separation. Here, the germ-free pipe section is exposed and can be performed without contact directly to the mouth.

The transverse sealing seam is preferably laid in such a way that a pouring part tapering conically away from the bag is produced.

In order to facilitate the opening of the packaging bag without scissors or knife, at least one tearing notch extending transversely to the pouring direction can be arranged in the transverse sealing seam in the region of the closed free end of the pouring part. To provide Ausgiess- or dosing with different opening cross-section at least two arranged at different distances from the closed free end of the spout part scoring are conveniently arranged. In order to obtain a defined as possible opening cross-section, in addition to the tear notches emanating from the Einreeschkerben, the pouring part circumferential weakening lines can be arranged.

In addition, a stiffening element, preferably a pipe section made of a plastic material, can be arranged in the pouring part.

Under certain conditions, the bag walls can collapse or collapse in the region of the pouring part and in this way constrict or even close the pouring part, thereby greatly hindering the pouring out of liquid and pourable bulk goods in particular. This disadvantage can be avoided in that the opening cross section in the region of the transition from the bag into the pouring part through a transverse to one of the tetrahedral corner wegweisenden pouring direction extending reinforcing element in the film material of the bag is stabilized.

The reinforcing element is preferably formed from a folded seam consisting of the film material and projecting from a tetrahedral surface of the bag, wherein the folded seam is expediently formed by sealing the film material against itself.

The reinforcing member may also be applied by a deposited on the sheet material rib of a plastic material, such as. As an adhesive or hot melt, be formed. Other possibilities include, for example, a stiffening embossing or stiffening material order from z. B. a printing ink.

The reinforcing element preferably has a substantially linear course. The reinforcing element may have a rectilinear or a curved course. The reinforcing element may also be constructed of substantially point-shaped elements.

Preferably, the tubular pouring part has a partial sealing seam extending essentially parallel to the pouring direction and passing into a sealing seam of the bag in the region of the tetrahedral corner of the bag, and the reinforcing element extends in a tetrahedral surface opposite the sealing seams.

Expediently, the pouring part has at least one tear notch extending transversely to the pouring direction. The tear notch can pass into a line of weakness surrounding the pouring part.

The pouring part is expediently foldable or hinged and preferably fixable by means of a pressure-sensitive adhesive to the bag in the folded-down or folded position. The spout can also by means of a between bag wall and spout glued or sealed strip with integrated permanent adhesive layer on the bag in the folded or folded position can be fixed and closed again.

The pouring part projecting from a tetrahedral corner of the bag according to the invention can be folded back, for example, against one of the bag surfaces and fixed in the folded-down position by means of a pressure-sensitive adhesive arranged on the bag surface or on the pouring element. In this way, the spout is relatively well protected against mechanical damage during transport and storage of the packaging bag. After opening the packaging bag by severing the pouring part in the region of its free end is obtained by a suitable arrangement of the pressure-sensitive adhesive in conjunction with the folding or folding of Ausgiessteils a simple way to close the opened bag again. With this simple closure, at least in the case of free-flowing, solid bulk materials, leaking of the contents when the package is overturned can be effectively prevented.

The pouring part can also be configured via sealing areas to a narrowed pouring channel, optionally with a valve effect.

The pouring part can be narrowed via sealing areas to a passage opening with valve action. Preferably, the passage opening is configured as a slot which can be expanded by filling material when the pressure is exerted on the bag and automatically closes without pressure.

The bags can also be easily equipped with a reclosable pourer in the spout. There are tetrahedron-shaped packaging bag made of plastic coated cardboard for drinks known. For the removal of drinks or semi-liquid products, such. As yogurt, for which a drinking straw is suitable, the drinking straw, for example, be integrated into the packaging bag, that he is under elastic tension and partially protrudes from the bag after opening the bag. A drinking straw can z. B. also be combined with a screw-pourer, so that even in this case a simple reclosure after first opening is easily possible.

Fig. 1

die Verfahrensschritte zur Herstellung einer aus zwei Beuteln bestehenden Beutelverpackungseinheit aus einer Folienbahn als Projektion senkrecht zur Laufrichtung der Folienbahn;

Fig.2

eine perspektivische Ansicht eines Schlauchkörpers mit Teilschläuchen nach Durchführung des Verfahrensschrittes c von Fig. 1;

Fig. 3

die Sicht auf eine Beutelverpackungseinheit nach Durchführung des Verfahrensschrittes e von Fig. 1 in Blickrichtung X;

Fig. 4

die Sicht auf die Beutelverpackungseinheit von Fig. 3 in Blickrichtung Y;

Fig. 5

ein vergrössertes Detail von Fig. 3;

Fig. 6

einen Längsschnitt durch einen Ausgiessteil mit eingesetztem Versteifungselement;

Fig. 7

den Querschnitt durch den Ausgiessteil von Fig. 6 entlang der Linie I-I;

Fig. 8

eine Seitenansicht einer weiteren Ausführungsform eines Verpa- ckungsbeutels;

Fig. 9 - 11

einen Ausgiessteil mit eingesetztem Rohrstück während des Öffnungsvorganges;

Fig. 12

die Seitenansicht eines Beutels mit Ausgiessteil;

Fig. 13

die Sicht auf die Unterseite des Beutels von Fig. 12;

Fig. 14

die Seitenansicht eines Ausgiessteils mit Ventilwirkung;

Fig. 15

die Seitenansicht eines umgeklappten Ausgiessteils;

Fig. 16

einen Schnitt durch den umgeklappten Ausgiessteil von Fig. 15 längs der Linie II-II;

Fig. 17

die Verfahrensschritte zur Herstellung einer aus einem Beutel mit zwei Kammern bestehenden Beutelverpackungseinheit aus einer Folienbahn als Projektion senkrecht zur Laufrichtung der Folienbahn;

Fig. 18

eine perspektivische Ansicht eines Schlauchkörpers mit Teilschläuchen nach Durchführung des Verfahrensschrittes c von Fig. 17;

Fig. 19

die Sicht auf eine Beutelverpackungseinheit nach Durchführung des Verfahrensschrittes e von Fig. 17 in Blickrichtung X;

Fig. 20

die Sicht auf die Beutelverpackungseinheit von Fig. 19 in Blickrichtung Y;

Fig. 21

den Verfahrensschritt c von Fig. 1 zur Herstellung einer aus drei Beuteln bestehenden Beutelverpackungseinheit;

Fig. 22

den Verfahrensschritt c von Fig. 17 zur Herstellung einer aus einem Beutel mit drei Kammern bestehenden Beutelverpackungseinheit.

Further advantages, features and details of the invention will become apparent from the following description of preferred embodiments and from the drawing; this shows schematically in

Fig. 1

the method steps for producing a two-bag bag packaging unit from a film web as a projection perpendicular to the direction of the film web;

Fig.2

a perspective view of a hose body with partial tubes after performing the method step c of Fig. 1 ;

Fig. 3

the view of a bag packaging unit after performing the method step e of Fig. 1 in the viewing direction X;

Fig. 4

the view of the bag packing unit of Fig. 3 in the direction Y;

Fig. 5

an enlarged detail of Fig. 3 ;

Fig. 6

a longitudinal section through a spout with inserted stiffening element;

Fig. 7

the cross section through the spout of Fig. 6 along the line II;

Fig. 8

a side view of another embodiment of a packaging ckungsbeutels;

Fig. 9 - 11

a spout with inserted pipe section during the opening process;

Fig. 12

the side view of a bag with pouring part;

Fig. 13

the view on the bottom of the bag from Fig. 12 ;

Fig. 14

the side view of a spout part with valve action;

Fig. 15

the side view of a folded Ausgiessteils;

Fig. 16

a section through the folded Ausgiessteil of Fig. 15 along the line II-II;

Fig. 17

the method steps for producing a bag packing unit consisting of a bag with two chambers from a film web as a projection perpendicular to the running direction of the film web;

Fig. 18

a perspective view of a hose body with partial tubes after performing the method step c of Fig. 17 ;

Fig. 19

the view of a bag packaging unit after performing the method step e of Fig. 17 in the viewing direction X;

Fig. 20

the view of the bag packing unit of Fig. 19 in the direction Y;

Fig. 21

the method step c of Fig. 1 for making one out of three Bags existing bag packaging unit;

Fig. 22

the method step c of Fig. 17 for producing a bag packaging unit consisting of a bag with three chambers.

According to Fig. 1 a film web 10 bounded by two side edges 12, 14 for producing a two-bag pouch packaging unit is unrolled from a supply roll (not shown in the drawing) and formed in a device (not shown) to form two longitudinal sealing seams 16 arranged in the running direction of the film web 10; 18 continuously formed into a two partial hoses 22, 24 comprising tubular body 20. In Fig. 1 is the direction of the film web 10 perpendicular to the plane or projection surface.

To form the first longitudinal seam 16, the two side edges 12, 14 of the film web 10 (step a) are sealed in a known manner to form a tube 15 against each other (step b). The seal can be done inside against the inside or inside against the outside of the film web. Simultaneously with the formation of the first longitudinal sealing seam 16 or subsequently, the tube 15 formed by the first longitudinal sealing seam 16 is transferred through the second longitudinal sealing seam 18 into the two tubular tubes 20 which are connected to one another via the second longitudinal sealing seam 18 (step c).

The in Fig. 2 tube body 20 shown is now closed on one side over a transversely to the longitudinal sealing seams 16, 18 first transverse seam 28 (step d). Instead of two partial hoses 22, 24 extending linearly, common transverse seam 28 may also be two individual zueinender standing sealed seams 28 A, 28 B for the two partial tubes 22, 24 or a corresponding angled, on both partial tubes 22, 24 reaching common sealing seam ( Fig. 3 ).

After attaching the first transverse sealing seam 28, liquid, pasty and / or free-flowing contents A, B can be filled in the indicated arrow direction into the vertically guided partial tubes 22, 24. After each filling with the contents A, B is at a distance from the first transverse seam 28 per each partial tube 22, 24 individually occlusive second transverse seal 30 A, 30 B attached (step e), wherein each successive first and second transverse sealing seams 28, 30 to an angle of 90 ° are arranged rotated against each other. In the present example, with two partial tubes 22, 24, therefore, two tetrahedral bags result, which are connected to one another via the second longitudinal sealing seam 18. It can also first the second transverse seam 30 A, 30 B laid, then each partial tube 22, 24 filled with the contents A, B and then the first transverse sealing seam 28 are attached.

According to Fig. 3 results in the preparation described above, a bag packaging unit with two tetrahedral bags 34 A, 34 B, each with a pouring part 32 A, 32 B. The bags are connected to each other via the second longitudinal seam 18. The second longitudinal sealing seam 18 may have in its longitudinal seam center a weakening line 38, for example in the form of a perforation line, so that the two bags can be separated from each other in a simple manner if required.

How out Fig. 4 can be seen, the second transverse seam 30 is placed so that in the region of one of the formed tetrahedral corners a pouring part 32 is formed. In the region of the tetrahedron corner, a first seam region 30 a extends in the pouring direction y of the pouring part 32, which is formed tubular in this way. A second subregion 30b of the second transverse sealing seam 30 runs transversely to the pouring direction y and serves to close the pouring part 32 tapering conically at its free end 36.

In order to avoid mechanical damage to the pouring part 32 during transport and during storage and to prevent inadvertent leakage of contents when the bag is open, the pouring part can be folded or folded about an axis e transversely to the pouring direction y. To fix the folded spout on the bag (in Fig. 4 indicated by dashed lines) is a pressure-sensitive adhesive 44 is provided, which is arranged in the present example in the form of a pressure-sensitive adhesive strip on the spout 32.

At the in Fig. 5 shown, against its closed free end 36 conically tapered pouring part 32 are arranged in the portion 30 a of the transverse seam at different distances a, b, c from the closed end 36 transversely to the pouring y extending tearing grooves 40 a, 40 b, 40 c. At the top of each tear notch 40 a, 40 b, 40 c is followed by a pouring part 32 circumferential line of weakness 42 a, 42 b, 42 c, for example in the form of a not the entire thickness of the film material penetrating cut, or in the form of along a line arranged, the film material in thickness not completely penetrating perforations. Depending on the desired opening cross-section of the pouring part 32 of the bag from the corresponding tear notch 40 a, 40 b, 40 c starting along the associated line of weakness 42 a, 42 b, 42 c cut through.

In the in the 6 and 7 shown embodiment of a pouring part 32 is inserted therein a stiffening element in the form of a conically tapered pipe section 44 made of a plastic material. The opening of the bag via the tear notch 40 a immediately before the outlet tip 46 of the pipe section 44. If a larger opening cross-section is desired, the pipe section 44 can be cut back accordingly, for example, with a pair of scissors.

At the in Fig. 8 shown bag 34 (34 A, 34 B) is arranged in place of the narrow second transverse seam 30, a wide seal area. This broad Sealing region 48 corresponds to a in the production of the pouring part 32 according to Fig. 4 resulting film section, which, instead of separated, continue to be used. In the example shown, the wide seal area 48 comprises an unsealed area as a cavity 50 for a drinking straw 52. The cavity may of course have any shape and serve to accommodate any objects. Further, in the wide sealing area 48, two holes 54, 56 provided, for example, for suspending the bags in a store shelf, are punched out.

At one in the Fig. 9 to 11 Spout 32 shown in this arranged pipe section 44 as a stiffening element, the pipe section 44 is not fixedly connected from the free end of the spout 32 to a tear notch 40 B with the spout 32. To open the pouring part 32, it is separated from the rest of the packaging bag at the tear notch 40 b and passed over the tube piece 44 as a separating part 58 (FIG. Fig. 11 ) away. This is according to Fig. 10 an end 60 of the pipe section 44 exposed. This free end 60 of the pipe section 44 assumes the function of a germ-free drinking straw in a beverage bag, which can be performed after tearing the separation part 58 directly to the mouth. Beverage bags with a pouring opening formed in this way are suitable, for example, for use in areas with poor hygienic conditions and correspondingly high risk of infection.

From the FIGS. 12 and 13 It can be seen that, in the region of the transition from the bag into the pouring part 32 transversely to the pouring direction y pointing away from the tetrahedral corner, a fold seam 62 formed in the film material of the bag runs. This seam seam 62 results from the fact that film material is sealed against itself to form a sealed seam. As a result of this reinforcement, the opening cross section in the region of the transition from the bag into the pouring part 32 is stabilized. The seam seam 62 is arranged in a tetrahedral surface 64 and is opposite to the second transverse seam 30 and the partial seam 30 a.

As in Fig. 13 1, a diaphragm valve 66 is sealed in the tetrahedral surface 64. Such a diaphragm valve 66 may, for. B. when the bag serves as a package for present in the form of beans or in ground form coffee. In this case, a gas pressure building up in the bag interior is counteracted, in that gases can escape to the outside. On the other hand, the diaphragm valve 66 prevents gas passage of z. B. oxygen from outside to inside. The diaphragm valve 66 is sealed to the film web 10 at a predetermined location, for example, before the hose is formed.

In the in the FIGS. 12 and 13 As shown, the folded seam 62 extends in a straight line on the bag outer side. Dashed lines show a folded seam 62 'with a curved course. The course of the folded seam 60, 60 'but may have any shape and depends on the product to be filled. The seam 60, 60 'may also be attached to the inside of the bag. Another possibility is to press foil material from the outside inwards with a tool and to seal it as an inwardly directed seaming seam.

Instead of a folded seam 60, 60 ', it is z. B. also possible to apply a rib of plastic as a reinforcing element in molten form on the outside or inside of the bag. The material used for the rib may be, for example, an adhesive or a hotmelt. Other options for local stiffening arise z. B. with an embossing or by the use of a stiffening ink.

The reinforcing element in the form of a seam 60, 60 'or a correspondingly arranged plastic rib is preferably applied simultaneously with the bag production.

For better dosing of liquid and viscous products can in Ausgiessteil according to Fig. 14 by attaching additional sealing areas 70, 72 a passage opening 74 may be arranged with a type of valve action. The sealing areas 72, 74 are z. B. arranged so that a slot results as a passage opening 74, which opens only by pressure on the bag and passes through the product. When removing the pressure, the slot closes automatically and prevents leakage of filling material.

In order to avoid mechanical damage of the pouring part 32 during transport and during storage and to prevent inadvertent leakage of contents when the bag is open, the pouring part 32 can be folded or folded over an axis e transversely to the pouring direction y. For fixing the folded pouring part 36 on the bag (in Fig. 12 indicated by dashed lines) is a pressure-sensitive adhesive 44 is provided, which is arranged in the present example in the form of a pressure-sensitive adhesive strip on the spout 32.

As in the FIGS. 15 and 16 1, instead of a pressure-sensitive adhesive 44 applied to the bag wall or to the pouring part 32, a strip 76 with integrated permanent adhesive layer 78 can also be glued or sealed between the folded pouring part 32 and the bag wall 80. The strip 76 consists for example of two outer layers 82, 84 of a polyolefin, such as polyethylene, with the arranged between the two outer layers 82, 84 permanent adhesive layer 78, the z. B. may consist of a hotmelt. Thus, a reclosability of the bag can be achieved by a simple choice of material.

According to Fig. 17 a film web 10 bounded by two side edges 12, 14 for producing a bag packing unit consisting of a bag with two chambers is unrolled from a supply roll (not shown in the drawing) and arranged in a device (not shown) forming two in the direction of the film web 10 Längssiegelnähten 16, 18 continuously to a two partial tubes 22, 24 comprising tubular body 20 formed. In Fig. 17 is the direction of the Film web 10 perpendicular to the plane or projection surface.

To form the first longitudinal seam 16, the first side edge 12 of the film web 10 is sealed against the film web 10 to form a first partial tube 22 (step b). Simultaneously with the formation of the first longitudinal seam 16 or subsequently, the second side edge 14 is sealed to form the second longitudinal seam 18 against the first partial tube 22, whereby the second partial tube 24 is formed. The two part of the tubes 22, 24 common film web part 11 between the two longitudinal sealing seams 16, 18 forms a partition, which divides the hose body 20 in the two partial tubes 22, 24 (step c).

The in Fig. 18 shown, divided by the common film web part 11 in the two partial tubes 22, 24 tubular body 20 is now closed on one side transverse to the longitudinal sealing seams 16, 18 first transverse sealing seam 28 (step d). In this case, care is taken that the two longitudinal sealing seams 16, 18 in the first transverse sealing seam 28 lie substantially opposite one another or at least close to one another.

After attaching the first transverse sealing seam 28, liquid and / or free-flowing contents A, B can be filled into the vertically guided partial tubes 22, 24 in the indicated arrow direction. After filling with the contents A, B is at a distance to the first transverse seam 28 a the two part tubes 22, 24 with the arranged between these film web part 11 closing second transverse seam 30 attached (step e), wherein each successive first and second transverse sealing seams 28, 30th be arranged rotated by an angle of 90 ° to each other. In the present example, with two partial tubes 22, 24, a tetrahedron results, which is subdivided into two chambers by a dividing wall formed from the film web part 11. It may also first the second transverse seam 30 laid, then each partial tube 22, 24 filled with the contents A, B and then the first transverse sealing seam 28 are attached.

According to Fig. 19 In the case of the production described above, a bag packaging unit is made of a tetrahedral bag 34 with a pouring part. The bag 34 is divided over the serving as a partition film web part 11 into two chambers 34 A, 34 B.

How out Fig. 20 can be seen, the second transverse seam 30 is placed so that in the region of one of the formed tetrahedral corners a pouring part 32 is formed. In the region of the tetrahedron corner, a first seam region 30 a extends in the pouring direction y of the pouring part 32, which is formed tubular in this way. A second subregion 30b of the second transverse sealing seam 30 runs transversely to the pouring direction y and serves to close the pouring part 32 tapering conically at its free end 36.

The above based on the Fig. 4 to 16 For the bag packing unit consisting of two tetrahedral bags, it is also possible to apply the bag packing unit consisting of a two-chambered tetrahedral bag.

In principle, it is possible to produce pouch packaging units consisting of three or more tetrahedral bags or of a tetrahedral bag with three or more chambers according to the methods described above.

As in Fig. 21 it is only necessary to produce a pouch packaging unit consisting of three tetrahedral bags, in addition to the two sub-tubes in step c in FIG Fig. 1 by attaching a further longitudinal sealing seam 19 to produce a further partial tube 25.

As in Fig. 22 it is only necessary to make a pouch packaging unit consisting of a tetrahedral bag with three chambers, in addition to the two sub-tubes in step c in FIG Fig. 17 by forming another partition wall 13 to produce a further partial tube 25.

Claims (14)

Method for producing pouch packaging units from a flexible film material, in which method a tubular body (20) is continuously formed from a film web (10) delimited by two longitudinal edges (16) from one of two lateral edges (12, 14) and out of the tubular body (20) alternately formed transversely to the longitudinal sealing seam (16) mounted first transverse sealing seams (28) and transverse to the longitudinal sealing seam (16) and substantially perpendicular and spaced from the first transverse sealing seams (28) second transverse sealing seams (30) tetrahedral packaging bag (34) second transverse sealing seams (30) are laid in the region of a tetrahedral corner of the pouches (34) in such a way that a pouring part (32) of substantially tubular design is produced,
characterized in that for the formation of at least two bag chambers (A) by connecting the two side edges (12, 14) via a first longitudinal sealing seam (16) continuously formed a hose (15) and the hose (15) via at least one further longitudinal sealing seam (18) in at least two partial tubes (22, 24) is divided, and from the partial tubes (22, 24) by a common first transverse sealing seam (28) and one substantially perpendicular and spaced from the first transverse sealing seam (28) attached to each partial hose second transverse seam (30 A, 30 B)) a Bag packaging unit with at least two on the at least one further longitudinal sealing seam (18) interconnected packaging bags (34 A, 34 B) is formed, each with a bag chamber, or (b) by connecting a side edge (12) with the film web (10) over a first longitudinal seam (16) continuously, a first part hose (22) and by connecting the film web (10) optionally over at least a region between the first longitudinal seam (16) and the second side edge (14) and over the second side edge (14) alternately with the first part hose (22) via a second longitudinal seam (18) and over the first longitudinal sealing seam (16) at least a second partial tube (22) is formed, and from the partial tubes (22, 24) by a common first transverse seal (28) and a substantially perpendicular and spaced from the first transverse seal ( 28), with their ends to the longitudinal sealing seams (16, 18) adjacent common second transverse sealing seam (30) is a bag packaging unit in the form of a subdivided into at least two bag chambers packaging bag (34) is formed. A method according to claim 1, characterized in that in a portion (30 a) of the second transverse seam (30) in the region of the closed free end (36) of the spout (32) at least one transverse to the spout (y) extending tearing notch (40 a) to be ordered. A method according to claim 2, characterized in that in the partial region (30 a) of the second transverse seam (30) at least two tearing notches (40 a, 40 b, 40 c) at different distances (a, b, c) to the closed free end (36 ) of the spout (32) are arranged to form spout openings with different sized opening cross-section. A method according to claim 2 or 3, characterized in that in the spout part (32) of the tearing notches (40 a, 40 b, 40 c) outgoing, the spout part (32) circumferential weakening lines (42 a, 42 b, 42 c) are arranged , Method according to one of claims 1 to 4, characterized in that in the spout part (32) has a stiffening element (44), preferably a Pipe piece made of a plastic material, is arranged. Method according to one of claims 1 to 5, characterized in that the opening cross-section in the region of the transition from the bag (34) into the spout part (32) by a transverse to a direction away from the tetrahedral corner spout (y) extending reinforcing element in the film material of the bag (34) is stabilized. A method according to claim 6, characterized in that the reinforcing element is formed from a consisting of the film material and by a tetrahedral surface (64) of the bag (34) projecting, preferably formed by sealing the film material against itself seam (62). A method according to claim 6, characterized in that the reinforcing element is formed by a deposited on the sheet material rib of a plastic material, such as an adhesive or hotmelt, a stiffening embossing or a stiffening material application. Method according to one of claims 6 to 8, characterized in that the reinforcing element has a substantially linear course. Method according to one of claims 6 to 9, characterized in that the reinforcing element has substantially punctiform elements. Method according to one of claims 6 to 10, characterized in that the tubular spout part (32) has a part-seam seam (30) extending essentially parallel to the spouting direction (y) and passing into the second transverse sealing seam (30) in the region of the tetrahedral corner of the bag (34) a) and the reinforcement in one of the sealing seams (30, 30 a) opposite tetrahedral surface (64) extends. Method according to one of Claims 6 to 11, characterized in that the pouring part (32) has at least one tear notch (40) extending transversely to the pouring direction (y) and the tear notch (40) preferably extends into a weakening line (42) surrounding the pouring part (32) ) passes over. Method according to one of claims 1 to 12, characterized in that the pouring part (32) foldable or foldable and preferably by means of a pressure-sensitive adhesive (44) or by means of a between bag wall and spout part (32) glued or sealed strip (76) with integrated permanent adhesive layer (78) on the bag (34) in the folded or folded position can be fixed and reclosed. Method according to one of claims 1 to 13, characterized in that the pouring part (32) via sealing regions (70, 72) is narrowed to a passage opening (74) with valve action, wherein the passage opening (74) preferably as a pressure applied to the bag (34) is designed by filling expandable and without pressure automatically closing slot.

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