EP3368435B1 - Multi-chamber film bag and its use - Google Patents

Description

The invention relates to a multi-chamber foil pouch with a curable multicomponent composition and to the use of the multichamber foil pouch for packaging and / or processing of the multicomponent mass. Furthermore, the invention relates to the use of the multi-chamber foil bag in a process for producing a multicomponent composition, in particular a topical foam and in particular an inorganic fire protection foam.

For fast closing of openings, such as building fire protection ducts, or for anchoring components in wellbores, a reactive material of two components is mixed on site and placed in the opening. The reactive material should be stable until hardened and should not flow out of the opening again.

In the case of two-component masses of liquid resins such as polyurethane or epoxy resins, the stability is achieved by a corresponding adjustment of the viscosity of the material. The reactive components are presented separately in two-component cartridges with a static mixer and mixed at the application site by pressing out of the cartridge in the static mixer.

Bulk and liquid masses are mechanically mixed together in an open vessel using a stir bar or other mixing aids. The mixed mass can then be manually introduced into the opening to be filled and / or be brought into the desired shape, or filled in other application aids such as a dough press and introduced into the opening.

Multicomponent systems for producing gypsum foams and / or cement foams by mixing in open vessels are known, for example, from US Pat EP 2 045 227 A known. The hydraulically setting composition described therein serves for the production of inorganic fire-resistant or insulating local foams and comprises a pH-neutral or alkaline hydraulic binder and a foaming component as well as a foam stabilizer, the foaming component releasing oxygen or carbon dioxide. The known inorganic fire protection systems, however, are difficult to introduce into openings and are often applicable only as a potting compound with elaborate formwork devices.

If a powder is to be mixed with liquid in a closed container, further aids such as balls are needed in a partially air-filled space. To empty the container, a substantially liquid consistency of the mixture is required.

Furthermore, liquid two-component casting resins are known, which are introduced into a two-chamber foil bag with clamp closure. Here, the liquid potting resin is mixed manually after removing the clamp closure and then poured, for example, in cable lugs.

For pressing pasty masses of tubes or foil bags, moreover, various retractors and stripping devices are also known in combination with each other. These aids have a longitudinal slot formed between two strips, in which the tube rebate is introduced, the tube contents is then pressed either by rolling the tube from the end of the tube ago or by brushing the strips and squeezing the tube.

A simple and inexpensive packaging for good mixing and application of curable multi-component compositions in a closed container is not known.

Two-component cartridges or two-component film containers with static mixers have a certain dead volume in the mixer. Furthermore, the mixing quality at the beginning of the mixture is insufficient, so that a flow has to be removed, which is to be discarded. Furthermore, a residual amount remains in the static mixer. In commercial systems, this residual amount is about 30 g of the two-component mass, and the amount taken as a preliminary amount is about 15 g. Per application is therefore expected to be about 45 g loss of curable material. If the user only needs to make a small number of four to five attachment points that require about 10 to 15 grams of mass per attachment point, the percent loss amount is about 50% or more. In addition, a new static mixer is required if additional applications are to be carried out with the same container. When using small amounts of the two-component mass must therefore be expected with high losses and correspondingly high material costs.

The DE 3830630 A1 describes a multi-chamber bag system with a flexible, sealed to the environment foil bag and with a clamping element for clamping a portion of the bag for dividing the bag interior in at least two chambers.

Clamp bags are sufficient for liquid casting resins because the mass can flow out of the bags. Stable pasty masses are worse to work with conventional clamping bags, since the masses must be manually pressed out of the bag with pressure. The emptying of the sack is generally unsatisfactory and users attempt to empty the remainder by crumpling or twisting the sack.

Scaler devices have the disadvantage that the tube or bag must be held at the trailing end to pull the bag through the scraper and squeeze the mass out of the bag. In this case, the user does not have the opportunity to apply the emerging from the bag opening mass targeted. The emptying of residual amounts is not optimal in this case, because the mass can penetrate through the Ausstreifspalt in the rear of the bag. However, a narrowing of the Ausstreifspaltes causes the force required to squeeze the bag contents is very high.

Reels are usually only available separately and do not fit different systems and sizes of tubes or plastic bags. Threading the bag seam into the reel is not always simple, the reel can slip off and during the first turns hardly enough force to produce the pressure necessary to squeeze out the contents of the bag. Only when the foil layers press against each other, larger forces can be applied.

The invention has for its object to provide a simple, user-friendly and cost-effective application form and packaging for good mixing and application of curable multicomponent compositions in a closed container, especially for chemical anchor or for an inorganic foam based on gypsum or cement mortar for insulation or fire protection applications with solid, powdery and liquid components. The application form should allow the mixing of components without expensive tools and allow the introduction of the mass in tight and / or difficult to access openings. In this case, even small quantities without flow losses and / or residual quantity losses should be processed.

This object is achieved by a multi-chamber film bag according to claim 1. The invention further relates to the use of the multi-chamber film bag according to claim 13 for packaging and / or processing a curable multi-component composition, and a method for producing and processing a curable multi-component material using the inventive multi-chamber foil bag having the features of claim 14.

Advantageous and expedient embodiments of the method according to the invention and of the film bag according to the invention are specified in the associated subclaims.

The invention provides a multi-chamber foil pouch having a curable multicomponent mass, with at least two chambers separated from one another in a liquid-tight manner, one of the chambers being filled with a first component and at least one other chamber being filled with a hardener component for the first component. Further, the multi-chamber foil bag comprises a separator which liquid-tightly separates the chambers in a stored condition and, in a use condition, provides flow communication between the chambers for mixing the first component and the hardener component. The bag has an opening portion that can be opened to discharge the mixed multicomponent mass. The Separating element comprises a provided with a longitudinal groove clamping rail and a clamping strip. Either the clamping rail or the clamping strip is firmly connected to an edge of the film bag opposite the opening section. The fixedly connected to the foil bag edge portion of the separating element has an engaging portion which allows a rotational movement of the fixed part for rolling up the foil bag on the firmly connected part.

The separator thus combines the function of mutual sealing of the chambers with the function of a retractor. This ensures that the reel for squeezing the bag contents does not have to be provided separately. In addition, eliminates the time-consuming threading of the bag seam in the reel. Since the mixing of the components takes place after the removal of the clamping strip in the closed bag, the mixed mass can be fully utilized. There is no flow, which would have to be disposed of because of insufficient mixing of the components. The reel also allows almost complete emptying even when using foil bags made of plastic, which can not be guaranteed by manual squeezing the bag contents. The use of special Auspressgeräten can thus be dispensed with.

The multi-chamber foil pouch according to the invention also makes it possible to provide foil packs with fixed quantities of the reactive components for the curable multicomponent mass predetermined by the pack. Thus, a misdosing by the user can be safely avoided and the mixture is ready for immediate use. In addition, small containers of about 30 to 100 g can be provided in this way easy and cost-saving. The separating element of the multi-chamber foil bag can be easily opened without tools. By simply kneading the components, good mixing results can be achieved.

The firmly connected to the film bag part of the separating element allows easy operation with one hand, so that the opening portion out with the other hand and the mixed multicomponent compound from the opening portion can be selectively applied in an on-site opening. The opening portion may be further formed as a nozzle tip and thus allow a targeted application of the mass in narrow and difficult to access openings. Furthermore, the mass after mixing the Components in the film bag are already in a stable consistency to prevent the flow out of the mass from the openings to be filled.

The invention further provides a cost-effective and space-saving film packaging. During mixing, contact between the user and the reactive components is excluded, so that a health hazard is avoided. Finally, no additional mixing elements such as static mixers and no mixing tools and mixing containers are necessary because the mixing of the components takes place within the film packaging. This eliminates the otherwise necessary cleaning work on the tools.

Although the invention is described below on the basis of a two-component system, multicomponent systems are also encompassed by the invention and can be realized with little effort, which have more than two reactive components, which are incorporated in the foil bag in more than two separate chambers.

According to a preferred embodiment, the curable multicomponent composition is a curable organic material, in particular based on epoxides, (meth) acrylates or polyurethane.

According to a further embodiment, the multicomponent composition is an inorganic multicomponent composition comprising a hydraulically setting component as a reactive component, which may also be pulverulent, and a water-containing component as a hardener component. Cement, in particular Portland cement, trass, pozzolans, hydraulic limestones and gypsum or mixtures thereof can be used as the hydraulic binder. As the hardener component, water or aqueous solutions can be used.

The inorganic multicomponent composition is preferably an inorganic fire-protection foam or insulating foam with at least one hydraulic binder, a foaming component and a foam stabilizer. The foaming component may be formed from an alkali or alkaline earth carbonate or bicarbonate and an acid, and / or from an oxygen carrier and a catalyst. In particular, hydrogen peroxide can be used as the oxygen carrier serve aqueous solution. The catalyst may include manganese dioxide MnO ₂ . Such foam systems are from the EP 2 045 227 A1 known.

The multi-chamber foil bag can be formed as a flat bag or as a tubular bag. The production of these systems is known in principle to the person skilled in the art. Flat bags are usually formed by stacking two plastic films and randumlaufendes welding of the films. For the present invention expedient tubular bags are formed by spraying the plastic films from round dies to form a film tube and welding the hose ends. The multi-chamber foil bag according to the invention is preferably a flat plastic bag with firmly welded side edges.

In a preferred embodiment, the at least two chambers directly adjoin one another. This embodiment is suitable for all applications in which the at least two components are physically well miscible, for example low-viscosity components or a low-viscosity component with a pulverulent component.

Furthermore, the multi-chamber foil bag has an opening portion which can be opened to discharge the mixed multicomponent mass. In this embodiment, the opening portion is preferably comprised by one of the two chambers.

In an alternative embodiment, the at least two chambers are arranged at a distance from each other and between the chambers, a bag section is arranged with a reduced cross-section. As a result, a better mixing is achieved because the mass can be mutually pressed by a constriction. This embodiment thus enables the mixing of very viscous components. In this embodiment, the component of that chamber, which is not delimited by the separating element, can be separated from the reduced-section bag section by a further separating element, for example a clamping or peeling seam. Finally, it is also provided to fill the bag section of reduced cross section with another reactive component. The bag section then forms itself a liquid-tight separated from the other chambers chamber.

The opening portion in this embodiment is preferably comprised of the reduced cross section bag portion.

In one embodiment of the multi-chamber foil bag, the opening section is provided with a screw-in closure welded into the foil bag. A screw cap allows the attachment of commercially available cartridge nozzles or nozzle tips with which the multicomponent mass can be discharged from the foil bag depending on the desired application at the application site.

According to a further embodiment, the opening section for discharging the multicomponent mass may be formed by a nozzle tip or plastic nozzle which is welded into the film bag and preferably has a pointed or conical taper. Preferably, the nozzle tip or plastic nozzle is closed at its free end and is cut at the application site depending on the desired size of the nozzle opening or at an intended weakening zone, such as an annular predetermined breaking point, stopped. If the nozzle tips are provided with weakening zones, no scissors or knife is required to open the extrusion tips. If necessary, the nozzle tip can also be extended by attaching another plastic tip. The use of nozzle tips with a conical or tapered extrusion opening and a predetermined opening cross-section allows targeted introduction of the foam system in narrow gaps with poor accessibility. Thus, on-site openings can be filled quickly, easily and inexpensively with the curable multi-component compound.

Particularly preferably, the portion for discharging the foam system is formed by an integrally formed on the film bag spout. The spout may be tubular or conical or tapered toward its free end opposite the chamber. Particularly preferably, the spout is provided at its free end with a weakening zone, such as a tear seam, which allows tearing of the spout without tools. In this way, even inaccessible openings can be quickly, easily and inexpensively filled with the multi-component mass.

According to the invention, the separating element comprises a clamping rail provided with a longitudinal groove and a clamping strip. Preferably, the clamping rail has a U-profile.

Either the clamping rail or the clamping strip is firmly connected to an opening of the opposite edge portion of the film bag and has an engaging portion which allows a rotational movement of the connected part for rolling up the film bag on the connected part. The connection is preferably by gluing or welding. The engaging portion is formed so as to facilitate the rotational movement for the user. Preferably, the engaging portion is in the form of a ball, a wheel, a cross, a wing or a strip.

The other, corresponding to the clamping rail or the clamping strip part of the separating element may be present as a loose part or also be attached to the outside of one of the flat sides of the film bag, for example by gluing or welding to the film wall.

For liquid-tight separation of a chamber from the remaining bag contents of the film bag is placed with a flat side on the longitudinal groove of the clamping rail and pressed the clamping strip after turning over the foil bag from the other flat side of the foil bag in the longitudinal groove. As a result, the opposing film walls of the film bag are pressed together and there is a liquid-tight separation of adjacent to the clamp closures in the film bag.

According to a further embodiment, compulsory mixing compounds may be provided in the region of the separating element, which allow a faster and more homogeneous mixing of the components. In particular, solid webs may be provided between the opposing film walls of the film bag in the region of the separating element, or weld seams may be provided which remain when pressure is applied to one of the chambers and do not tear open.

The invention thus also provides a use of the multi-chamber foil bag for packaging and / or processing a curable multi-component material and in particular an inorganic multi-component foam system.

Using the multichamber foil pouch of the invention, a curable multicomponent mass can be prepared and processed, wherein one of the chambers of the multichamber foil pouch is filled with a reactive component and another chamber is filled with a reactive component hardener component, the chambers undergoing a first storage condition at least one separating element are liquid-tightly separated from one another, and wherein in a second state of use by opening the separating element provides a flow connection between the chambers and the reactive component is mixed in the film bag with the hardener component. After mixing the components, the opening portion is opened and the film bag is rolled toward the opening portion on the clamping rail or the clamping strip, so that the mixed components are squeezed out of the opening portion.

The curable multicomponent composition is preferably a chemical anchor or a multi-component inorganic foam system, more preferably an inorganic two-component foam system and in particular an inorganic fire-resistant foam.

The use of nozzle tips with a pointed or tapered discharge opening and a predetermined opening cross-section allows targeted introduction of the foam system in narrow gaps with poor accessibility. The nozzle tips can be provided with weakening zones, so that no scissors or knife is needed to open the extrusion tips. Thus, for example, openings can be filled quickly, easily and inexpensively with the curable multi-component compound.

The mixing of the components in the use state preferably takes place by manual kneading of the mass in the closed foil bag.

• Figur 1 eine schematische Darstellung des erfindungsgemäßen Folienbeutels gemäß einer ersten Ausführungsform mit geöffnetem Trennelement;
• Figur 2 die Seitenansicht einer schematischen Darstellung des erfindungsgemäßen Folienbeutels gemäß der ersten Ausführungsform mit geschlossenem Trennelement;
• Figur 3 eine schematische Darstellung des erfindungsgemäßen Folienbeutels gemäß einer weiteren Ausführungsform mit geöffnetem Trennelement.

Further features and advantages of the invention will become apparent from the following description and from the following drawings, to which reference is made. In the drawings show:

• FIG. 1 a schematic representation of the film bag according to the invention according to a first embodiment with an open separating element;
• FIG. 2 the side view of a schematic representation of the film bag according to the invention according to the first embodiment with a closed separating element;
• FIG. 3 a schematic representation of the film bag according to the invention according to a further embodiment with an opened separating element.

The in FIG. 1 shown multi-chamber foil pouch 10 has two chambers 12, 14, wherein the chamber 12 is filled with a reactive component 16 and the chamber 14 with a hardener component 18 for the first component.

The multi-chamber foil bag 10 is shown here as a plastic flat bag with firmly welded side edge 20. Alternatively, a tubular bag can be used, which then has no welded side edge 20, but closed only at the ends of the tube, preferably welded, is.

In the in FIG. 1 illustrated embodiment, the two chambers 12, 14 directly adjacent to each other. This embodiment is suitable for all applications with physically well miscible components, such as low-viscosity components or a low-viscosity component and a pasty or powdery component.

The bag 10 is in FIG. 1 shown in use with open partition 22. The separating element 22 comprises a clamping rail 24 with longitudinal groove 26 and a clamping strip 28. In the embodiment shown here, the clamping strip 28 is fixedly connected to an opening portion 30 opposite edge 32 of the film bag 10 and has an engaging portion 34. The clamping rail 24 may be provided as a separate, loose part or be connected to the foil bag 10, for example by sticking to an outer foil wall of the foil bag. Alternatively, the clamping rail 24 may be fixedly connected to the edge 32 and have the engaging portion 34. In this case, the clamping strip 28 may be present as a loose part or connected to the foil bag. Shown is the simplified opening of the bag at the opening portion 30 trained tear seam 38. This can be advantageously supplemented or replaced by a notch.

FIG. 2 shows a side view of the in FIG. 1 The bag 10 is hammered in the region of the chamber 12, and the chambers 12, 14 are liquid-tight separated from each other by the closed partition member 22. A flat side of the film bag 10 rests on the longitudinal groove 26 of the clamping rail 24. The clamping strip 28 connected to the edge 32 is inserted from the opposite flat side of the film bag 10 into the longitudinal groove 26 and presses the film walls of the film bag 10 lying in the longitudinal groove 26 between the clamping strip 28 and the clamping rail 24. The separating element 22 thus separates the chambers 12, 14 from each other in a liquid-tight manner.

In the region of the separating element 22 further compulsory mixing connections (not shown) in the form of interrupted welds can be provided which, after the opening of the separating element 22 in the use state of the foil bag 10, provide for a compulsory mixing of the components in the chambers 12, 14.

In FIG. 3 a further embodiment of the film bag 10 is shown with the separating element 22 open. In this embodiment, the chambers 12, 14 are arranged at a distance from each other. Between the chambers 12, 14 is a bag section 40 of reduced cross-section. As a result, a better mixing is achieved because the mass can be mutually pressed by a constriction. This embodiment thus enables the mixing of very viscous components.

In the embodiment shown, the hardener component 18 in the chamber 14 is bounded by a further separating element 36, here by a heat-sealed peel seam, and is liquid-tightly separated from the bag section 40 of reduced cross-section. Alternatively, a clamping seam such as a lip closure or a zipper closure can also be provided here. It is also possible to form the further separating element 36 by a clamping rail, in which a clamping strip is inserted, whereby the chamber 14 is separated from the rest of the bag contents. The clamping rail and / or the clamping strip may be present as loose parts or attached to the foil bag. In two-component systems, the further separating element 36 can also be omitted.

For the preparation and processing of the curable multicomponent composition is one of the chambers 12, 14 of the multi-chamber foil bag 10 with a reactive component 16 and the other chamber 12, 14 filled with a hardener component 18 for the reactive component 16. In the storage state, the chambers 12, 14 separated by the separating element 22 liquid-tight from each other. For this purpose, the clamping rail 24 is placed on a flat side of the film bag 10 and the film bag 10 held by the opposite flat side of the film bag 10 by pressing the clamping strip 28 in the longitudinal groove 26 of the clamping rail 24 ( Fig.2 ). This results in two separate chambers 12, 14 which are liquid-tightly separated from each other by the compression of the film walls of the film bag 10 in the longitudinal groove 26 of the clamping rail 24.

To transfer the in Fig. 1 shown film bag in the use state, when the curable composition to be processed and filled in on-site openings, the separating element 22 is opened by removing the clamping strip 28 from the longitudinal groove 26 of the clamping rail 24 and so a flow connection between the chambers 12, 14 is provided. The reactive component 16 is mixed with the hardener component 18 with closed film bag 10 by manual kneading. After mixing the components 16, 18 of the opening portion 30 is opened by tearing at the tear seam 38 and the film bag 10 from the edge 32 in the direction of the opening portion 30 on the clamping rail 24 or the clamping strip 28 rolled up. The rolling can take place via the engagement section 34 with one hand while the opening section is guided with the other hand on or in the opening to be filled. By rolling up the film bag on the clamping strip 28 or the clamping rail 24 so the mixed curable composition is squeezed out of the opening portion 30 and introduced into the on-site opening. With the foil bag according to the invention a nearly complete emptying is possible. There is thus less waste and the production cost per hole to be filled can be significantly reduced.

To transfer the in Fig. 3 shown film bag in the use state, when the curable composition to be processed and filled in on-site openings, the separating element 22 by removing the clamping strip 28 from the longitudinal groove 26 of the clamping rail 24 and the other separator 36 (heat-sealed peel seam) by pressure on the Chamber 14 is opened and thus provided via the bag portion 40 with reduced cross-section, a flow connection between the chambers 12, 14. The reactive component 16 is transferred by squeezing and complete emptying of the bag 14 into the chamber 12 and with the hardener component 18 with the foil bag 10 closed mixed by manual kneading. Backflow of the components can be prevented, for example, by pinching off the bag 14 in the area of the bag section 40 of reduced cross-section. After mixing the components 16, 18, the bags 12 and 14 are separated by tearing at the tear seam 38 and the opening portion 30 is opened and the film bag 10 from the edge 32 in the direction of the opening portion 30 on the clamping rail 24 or the clamping strip 28th rolled up. The rolling can take place via the engagement section 34 with one hand while the opening section is guided with the other hand on or in the opening to be filled. By rolling up the film bag on the clamping strip 28 or the clamping rail 24 so the mixed curable composition is squeezed out of the opening portion 30 and introduced into the on-site opening. With the foil bag according to the invention a nearly complete emptying is possible. There is thus less waste and the production cost per hole to be filled can be significantly reduced.

LIST OF REFERENCE NUMBERS

10

Multi-compartment plastic bag

12

first chamber

14

second chamber

16

reactive component

18

hardener component

20

Side edge, welded

22

separating element

24

clamping rail

26

longitudinal groove

28

Mounts

30

opening section

32

the opening portion 30 opposite edge of the film bag

34

engaging portion

36

another separating element

38

tear seam

40

Bag section with reduced cross-section

Claims (16)

1. Multi-chamber foil bag (10) with a hardenable multi-component mass, with
   at least two chambers (12, 14) separated from each other in a liquid-tight way, in which one of the chambers (12, 14) is filled with a reactive component (16) and at least one other chamber is filled with a hardener component (18) for the first component, and
   with at least one separating element (22), which in a stored state separates the chambers (12, 14) from each other in a liquid-tight way and in a state of use provides a flow connection between the chambers (12, 14) for mixing the reactive component (16) and the hardener component (18),
   and with an opening section (30), which may be opened to apply the multi-component mass,
   in which the separating element (22) comprises a clamping bar (24) provided with a longitudinal groove (26) and a clamping strip (28),
   in which either the clamping bar (24) or the clamping strip (28) is connected firmly to an edge (32) of the foil bag (10) opposite the opening section (30), characterised in that the clamping bar (24) or the clamping strip (28) has a contact section (34), which makes possible a turning movement of the clamping bar (24) or the clamping strip (28) for rolling up the foil bag (10) on the clamping bar (24) or the clamping strip (28).
2. Multi-chamber foil bag according to claim 1, in which the multi-component mass is an organic mass based on epoxides, (meth)acrylates or polyurethane.
3. Multi-chamber foil bag according to claim 1, in which the multi-component mass is an inorganic multi-component mass with a hydraulically setting component as reactive component and a component containing water as hardener component.
4. Multi-chamber foil bag according to claim 3, in which the multi-component mass is an inorganic fire protection foam or insulating foam.
5. Multi-chamber foil bag according to one of the previous claims, in which the at least two chambers (12, 14) directly adjoin each other.
6. Multi-chamber foil bag according to one of claims 1 to 4, in which the at least two chambers (12, 14) are arranged at a distance from each other and a bag section (40) with reduced cross-section is arranged between the chambers.
7. Multi-chamber foil bag according to one of the previous claims, in which the opening section (30) is made as a screw cap.
8. Multi-chamber foil bag according to one of claims 1 to 6, in which the opening section (30) has a nozzle tip welded into the bag.
9. Multi-chamber foil bag according to one of claims 1 to 6, in which the opening section (30) is made as a spout with a tear seam moulded in one piece onto the foil bag.
10. Multi-chamber foil bag according to one of the previous claims, in which the clamping bar (24) has a U-shaped profile.
11. Multi-chamber foil bag according to one of the previous claims, in which the clamping bar (24) and/or the clamping strip (28) are connected firmly to the foil bag (10) by sticking or welding.
12. Multi-chamber foil bag according to one of the previous claims, in which the contact section (34) has the form of a ball, wheel, cross, blade or strip.
13. Use of a multi-chamber foil bag according to one of claims 1 to 12 for packing and/or processing a hardenable multi-component mass.
14. Method for producing a hardenable multi-component mass using a multi-chamber foil bag according to one of claims 1 to 12, in which one of the chambers (12, 14) of the multi-chamber foil bag (10) is filled with a reactive component (16) and another chamber (12, 14) is filled with a hardener component (18) for the reactive component (16), in which in a stored state the chambers (12, 14) are separated from each other in a liquid-tight way by a separating element (22) and in which in a state of use a flow connection is provided between the chambers (12, 14) by opening the separating element (22) and the reactive component (16) is mixed with the hardener component (18), in which after mixing the components (16, 18) the opening section (30) is opened and the foil bag (10) is rolled up on the clamping bar (24) or the clamping strip (28) in the direction of the opening section (30) so that the mixed components (16, 18) are squeezed out of the opening section (30).
15. Method according to claim 14, in which in the stored state the clamping bar (24) is put on one side of the foil bag (10) and the foil bag (10) is held in the clamping bar (24) by pressing the clamping bar (28) into the longitudinal groove (26) from the opposite side of the foil bag (10), forming two separate chambers (12, 14).
16. Method according to claim 14 or claim 15, in which mixing the components (16, 18) is done manually by kneading.

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