WO2006051118A1

WO2006051118A1 - Tubular packaging

Info

Publication number: WO2006051118A1
Application number: PCT/EP2005/055988
Authority: WO
Inventors: Stefan Junge
Original assignee: Sika Technology Ag
Priority date: 2004-11-15
Filing date: 2005-11-15
Publication date: 2006-05-18
Also published as: EP1657174A1

Abstract

The invention relates to a tubular packaging (10) comprising a tube top (14) and a tube base (12), whereby the tube base (12) is substantially configured by a multilayer material (16, 18, 20) having an integrated barrier layer (18). The inventive packaging is characterized in that a separate metal barrier (28) shields the interior of the tubular packaging off from the exterior in a diffusion-tight manner in the area of the entire tube top (14).

Description

TUBULAR PACKAGING

Technical area

The present invention relates to packaging, in particular with tube-shaped packaging with a tube head and a tube body according to the features of the preamble of claim 1.

PRIOR ART Many chemical-technical products, such as, for example, industrial adhesives, as well as products of the pharmaceutical industry, the cosmetics and food industries, are filled into tube-shaped packagings. This always raises the problem of tightness of such packaging. Depending on the product being filled, it is more or less important that the tube-shaped packaging is impermeable to water vapor, oxygen, nitrogen, or other gases, or also able to prevent the migration of volatile components, in particular solvents, odors and ethereal essences.

100% tightness is ensured only by metal tubes. However, these tubes, usually made of aluminum today, have the disadvantage that they experience irreversible deformations due to their so-called deadfold properties due to mechanical effects from outside, eg during transport, by careless handling of storage or sales employees or by consumers. which make the tube unsightly and therefore often unsalable. Metal tubes are therefore often additionally packed in cardboard boxes, which usually prevents the visual impairment but causes additional costs. Through the use of plastic tubes, this disadvantage can be eliminated, since the thermoplastic used for these tubes has a very good, so-called resilience. The resilience of the plastic prevents a permanent impairment of the tube shape due to external mechanical influences. The required for many products tightness is not achieved with simple plastic tubes, which has led to the use of a multilayer plastic laminate for the production of the tube body. The plastic laminate has a barrier z. For example, an aluminum foil or a layer of PET, EVOH, PVDC, PVOH, SiOx or the like. The use of such a barrier-type plastic laminate allows a compromise between the required impermeability and the desired insensitivity to external mechanical effects. The barrier layer provides the tightness and the surrounding thermoplastic, usually PE, the necessary flexibility and the necessary resilience to prevent or better hide the typical deformations of the pure metal tubes.

While the tube body such tubes can be made very easily from a corresponding aluminate or barrier film by rolling up the film and welding the film edges together, the tube head with the tube shoulder and the thread for a tube cover is usually made by injection molding of a thermoplastic material the tube head is usually cast on the tube body.

Because plastics always have a certain permeability due to their molecular structure, which is proportional to the thickness, the surface as well as the environmental conditions, a simple tube head made of plastic does not generally meet the requirements of tightness. Therefore, attempts were made to reduce the permeability of the tube head by introducing a corresponding barrier layer in the tube head. Examples of these are given in EP1033318, US4185757 and US3565293. In these documents, the barrier layer forms an integral part of the tube head, which is molded onto the tube body. The tube head is formed by first a barrier layer is produced, which has approximately the inner shape of the tube head, which then so encapsulated with a thermoplastic is made by the thermoplastic, the outer shape of the tube head is formed and the barrier layer is firmly connected to the outer thermoplastic part tube head.

The permanent, firm connection between the thermoplastic and the barrier layer as well as between the tube head and the tube body is often problematic, as also set out in the cited documents. This makes special measures, such. B. the formation of a profiled surface of the barrier layer necessary, which has an unfavorable effect on the manufacturing cost. However, this hard-to-achieve permanent connection not only leads to special requirements during production (cf., EP1033318, US4185757, US3565293) but also subsequently to leakage problems. These problems occur in particular in the transition region between the tube head and the tube body, but also in the region of the thread or the tube neck, which is or is usually formed without a barrier layer. A further problem zone with regard to the tightness is the area of the tube opening. In the case of tube heads made of plastic, the tube openings are normally closed by a cast-on plastic lid before the first use, which can be turned off or broken off and which likewise contains no barrier layer (cf., for example, US Pat ).

Although there are a variety of products for which the tightness of the packaging described above is sufficient, there are also many products that place greater demands on the tightness of the packaging. For example, polyurethane adhesives show, after only a few weeks of storage in a tube-shaped package of the type described above, hardening due to the migration of water vapor in the region of the tube opening and in the shoulder area; Food, cosmetics and pharmaceuticals lose their aroma or active ingredients. These and other highly sensitive products must therefore still be packaged in metal tubes in order to ensure their quality and durability, which is associated with the above-mentioned disadvantages. Presentation of the invention

The aim of the present invention is therefore for such highly sensitive

Products provide a cost-effective tube-shaped packaging whose tightness allows storage of the products in the tube over several months without loss of quality, the density is combined with the advantages of conventional plastic laminate tubes.

This object is achieved by a tube-shaped packaging according to the features of claim 1.

The tube-shaped packaging according to the invention has a tube body, which is essentially formed in a conventional manner from a multilayer material with an integrated barrier layer. Metals, PET (polyethylene terephthalate), EVOH (ethylene vinyl alcohol), PVDC (poly (vinylidene dichloride), PVOH (polyvinyl alcohol), SiO x) are particularly preferred as barrier layers in multilayer materials, however, metals, preferably at least one aluminum layer, because metals are a complete seal of the Media in the tube or in the ambient atmosphere, in particular to ensure water vapor, while each plastic always has a certain residual diffusion.

The barrier layer typically has a thickness of 4 to 100 microns. If it is lower, the probability that it is holey, and thus no longer tight.

The multilayer material further comprises at least one barrier layer in addition to at least one barrier layer. This plastic is preferably a thermoplastic material. As such plastic, PE (polyethylene), PP (polypropylene), both HDPE or HDPP and LDPE or LDPP are particularly preferred. Furthermore, these multilayer materials may have adhesive interlayers. Prints can be applied on the outermost or an intermediate layer.

It may be advantageous that the barrier layer is present as the outer layer of the multilayer material. This may be particularly advantageous to ensure good adhesion when connecting tube body and tube head, for example by means of an adhesive. Particularly suitable are multilayer materials which have a metal layer, and which each have an outer layer of thermoplasti¬-plastic. The multilayer material is produced in a known manner. The multilayer material typically has a thickness of 20-1000 micrometers, preferably 50-300 micrometers.

In one embodiment, the inner layer is formed by an adhesive, such as a sealant adhesive or a hotmelt adhesive, preferably a reactive hotmelt. The application of this adhesive takes place either directly during the production of the film, for example by means of coextrusion, or it is then carried out by coating, spraying, knife coating or hard coating. This embodiment is extremely advantageous because this adhesive layer can be used for joining the film to itself, that is to say, for example, during the formation of an adhesive tube during closure of a tube body filled with contents, as well as for connecting the tube body to the tube head. without having to use an additional adhesive.

To improve the bondability, in particular the bond, the multilayer material can be treated with a physical, chemical or physicochemical pretreatment in the production of the multilayer material or immediately before bonding with itself or with a composite partner, such as the tube head. For example, this can be done by applying an adhesion promoter, a primer or it may for example be a corona treatment or gas phase fluorination or a plasma treatment, such as low-pressure plasma treatment or an atmospheric plasma treatment, as for example by the company Plasmatreat GmbH, Steinhagen, Germany, commercial, for example, under the name Openair® plasma.

Furthermore, the tube-shaped packaging according to the invention is shielded against diffusion in the area of the entire tube head by means of an independent metal barrier. The choice of a metal barrier as diffusion protection in the area of the tube head ensures a 100% Tightness due to the lattice structure of the metal in the area of the barrier. Due to the independence of the metal barrier cost-effective production is possible. Since the metal barrier shields the entire region of the tube head and the tube body is protected against diffusion by the barrier layer laminate, even highly sensitive products in the packaging according to the invention can be stored for a long time without loss of quality, ie over several months.

The simplest and most preferred is when a tube shoulder and a tube neck of the tube head are formed directly themselves from metal and also the tube opening formed by the tube neck is closed by a pierceable metal membrane. Tube neck, tube shoulder and the metal membrane are advantageously formed in one piece, which increases their tightness and is very easy and inexpensive to manufacture, but can also be made of different pieces. The tube neck can be connected, for example, with a closure cap which has a snap lid or the tube neck is provided with a thread on which a corresponding screw cap can be screwed. The tube shoulder is most easily formed as a truncated cone-shaped metal ring on the opposite side of the tube opening to the tube neck and connectable to the tube body.

A tube head formed in this way is thus made of metal and, in the unopened state, forms a 100% tight shield against substances penetrating from the outside as well as against the escape of substances through the tube head.

The metal ring, which adjoins the tube neck, but instead of frusto-conical can also be substantially circular in shape and be covered by an outwardly bounding the tube head, formed of a plastic or plastic laminate tube shoulder. The metal ring can then be connected directly or via the tube shoulder with the tube body. The tightness is guaranteed as well as in the embodiment with the tube head formed entirely of metal. However, this embodiment allows the adaptation of the external appearance of the tube-shaped packaging according to the invention to the plastic / plastic laminate tubes in use today and any adaptation to the consumer's taste which is necessary at most.

In a further preferred embodiment, the tube head is formed in a conventional manner from plastic and as a metal barrier is in

Connection area between the tube body and tube head a pierceable metallic foil or a pierceable metallic insert body provided. The metal barrier configured in this way can then be connected to the tube body directly or via the tube head formed in a conventional manner from plastic.

The metal barrier can be prepared by conventional methods. In particular, the traditional stretching / extrusion are suitable for the production of this metal barrier, in particular for the production of a one-piece tube head made of metal. In this case, flashes of metal, in particular aluminum, are caused to flow under high, rapidly acting pressure of a sinking punch. In this cold deformation parts with a forged bottom and pressed sidewalls arise. They are pulled out of the die during the stamp return, stripped off and ejected. This method for producing the metal barrier or the one-piece tube head is characterized by a high dimensional accuracy, a high operating speed and thus high efficiency.

Depending on the product that needs to be packaged, the metal barrier may matter

Tinplate, aluminum, an aluminum alloy or other compared to the product to be stored in the package chemically inactive metal or a chemically inactive alloy. In special cases, it may be advantageous to coat or paint the metal barrier on its side facing the product to be packaged. This may be advantageous, in particular in the foodstuffs sector or in the pharmaceutical industry, in those cases in which inert, ie chemically inactive metals, or alloys that are costly or are unsatisfactory in terms of their processing or service properties.

Although the casting of a plastic tube head and laminate tube body has been practiced on each other for years and correspondingly large experience is available, it has been shown that the connections between the tube body and the metal barrier that are achievable leave something to be desired in relation to the desired tightness , It has been found that durable, strong compounds with better properties, in particular with respect to the tightness and durability, can be achieved if the connection is made by means of sealing wax, plastic or adhesive.

For this purpose, the metal barrier on a connection surface which cooperates with a connecting surface of the tube body and is preferably arranged on a connecting flange of the metal barrier. Also, butt surfaces can also be connected. However, the metal barrier may also overlap the tube body edge or, conversely, the edge of the metal barrier may be encompassed by the tube body, so that parts of the inner surfaces or outer surfaces of the metal barrier and tube body form the cooperating connection surfaces. To connect tube head and tube body, the sealing wax, plastic or adhesive can be applied to the surface of the multilayer material of the tube body or the tube head or it is an integral part of the multilayer material.

For the connection and optimization of the tightness, it is essential that the connection point between the metal barrier and barrier layer is as thin as possible and thus represents the smallest possible cross-sectional area. For the greatest possible force transmission between tube body and tube head, the largest possible connecting surface, in particular adhesive surface, is preferable. It is therefore preferable that the connecting layer is designed thin and large area. The distance between the metal barrier and barrier layer should preferably be less than 1 mm, in particular less than 100 micrometers. Preferably, the distance between the metal barrier and the barrier layer is smaller than the thickness of the multilayer material of the tube body. A big interface is achieved by a large overlap of metal barrier and barrier layer. In the area of adhesives and sealants, such a coating is particularly advantageous in systems which contain polymers containing alkoxysilane groups. The overlap is preferably more than double, preferably more than three times, the distance between the metal barrier and the barrier layer.

Very simply, the metal barrier or the one-piece tube head made of metal with tube neck, metal membrane and metal ring, be prepared as a stretched Aluplatine; other methods, such as twisted or cast aluminum or metal parts as a metal barrier are conceivable. The tube body is formed from a barrier laminate and welded at its longitudinal seam or sealed or glued. This can be done by conventional welding, in particular thermal welding, induction, high frequency, pulse or ultrasonic welding. The metal barrier and the tube body are connected by gluing, sealing, pressing or welding. The sealing is conceivable both by plastification of the plastic from the laminate and by applying a sealing wax or adhesive to the bonding surface of the metal barrier and / or to the bonding surface of the laminate tube body. This can be done depending on the design of the two parts, both inside and outside or in a combination thereof.

The tube body thus connected to the tube head is now filled with an ingredient or content composition in the usual manner. Care should be taken here that on the one hand as few air bubbles as possible, in particular in the region of the tube head, and on the other hand that the inner walls in the area where the tubes are described as follows, remain free of ingredient or Inhaltszusammen¬ set. After filling the tube, the tube body is finally connected on the side opposite the tube head under the action of heat by gluing, sealing, pressing or welding. In principle, all substances or compositions which are impermeable or reactive to water vapor, oxygen, nitrogen or other gases or which have volatile constituents, in particular solvents, odorous substances or ethereal essences or the like, are suitable as ingredients or content composition. Preferred ingredients or content compositions are moisture-curing adhesives or sealants. Particular preference is given to adhesives based on isocyanate-containing polyurethane prepolymers or polymers containing alkoxysilane groups. Isocyanate group-containing polyurethane prepolymers are obtained in a known manner from polyols and polyisocyanates in an excess of the polyisocyanates. Polymers containing alkoxysilane groups are understood, in particular, as meaning the so-called MS polymers and, on the other hand, alkoxysilane-terminated prepolymers which contain at least two urethane or urea groups. The latter are obtainable, for example, by reaction of (aminoalkyl) alkoxysilanes with isocyanate-terminated polyurethane prepolymers.

The ingredients or content compositions are advantageously of pasty consistency and typically filled. The advantage of the inventive packaging is that the

Tightness, especially at the critical points of a tube, such as shoulder, thread and opening, compared with the prior art is greatly improved and a substantially complete sealing of the tube is achieved. Even after opening the tube and breaking through the membrane, the seal is still largely guaranteed, because the not protected by barrier layer surface in the tube is extremely low. Through the tube cover, in particular in the form of a screw cap, an almost 100% seal is achieved even after the tube has been opened. This is particularly pronounced in those embodiments where there is also a metal barrier in the region of the tube neck, in particular in the case of one-piece tube heads made of metal. Another object of the invention is a package which consists of such a tube-shaped packaging and an ingredient or a content composition.

Short description of the drawing

In the following, the invention will be explained by way of example with reference to some schematic drawings. It shows purely schematically:

1 in section a tube-shaped packaging according to the invention, wherein the tube head and tube body are shown separated from each other,

2 shows a side view with a partial section of a second embodiment of an inventive tube-like packaging, wherein the tube head and tube body are shown separately from each other.

FIG. 3 shows an analogous representation of FIG. 1 of a further embodiment of the tube-shaped packaging according to the invention, FIG.

FIG. 4 likewise shows an analogous representation of FIG. 1 of a further embodiment of the tubular packaging according to the invention, and FIG

Fig. 5 section through tube-shaped packaging with differently connected tube body and tube head (Fig. 5a, 5b and 5c).

The same elements are the same in the individual figures

Reference number marked.

FIG. 1 shows, in section, a first embodiment of the tube-shaped package 10 according to the invention with a tube body 12 and a tube head 14. The tube body 12 is produced in a conventional manner from a plastic laminate with a barrier layer 18, wherein in the example shown here the outer layer 16 of the laminate is a PE layer, the inner layer 20 facing the product to be packaged Plastic composite is and the barrier layer 18 is formed in the middle of aluminum. Of course, however, the outer layer may also be a multi-layer plastic composite layer and the inner layer may be a monomate layer and the barrier layer 18 may also be PET, EVOH, PVDC, PVOH, SiOx or other known material having corresponding diffusion inhibiting or minimizing properties. However, the barrier layer 18 is preferably made of metal, in particular of aluminum.

The tube head 14 has a tube shoulder 22 which merges into a tube neck 24. In the embodiment shown here, the tube neck 24 has a thread 26 for receiving a corresponding screw cap (not shown). The tube neck 24 delimits a tube opening 29, which is closed in the example shown here with a metal membrane 30. For the use of the Innhaltes the tube 10, the metal membrane 30 can be punctured. The tube head 14 is integrally formed from metal in the example shown here by extrusion molding an aluminum plate. Thus, in the embodiment of FIG. 1, the tube head 14 as a whole forms a metal barrier 28, which shields the interior of the tube in the region of the tube head 14 in a diffusion-tight manner against the outside. In the embodiment of Fig. 1, the tube head is in one piece and has a tube shoulder 22 in the form of a frusto-conical metal ring 21, a tube neck 24 and on the tube body 12 side facing a connecting flange 32 which extends from the shoulder 22 in the tube longitudinal direction. The angle α describes the steepness of the truncated cone, which is formed by the tube shoulder 22. This angle α is that angle which is formed in the central longitudinal section shown in Figures 1, 3, 4 and 5 by the tube 10 of the tube shoulder 22 with the base of the cone shoulder formed by the tube shoulder 22. The angle α is preferably between 65 ° and 0 °, in particular between 50 ° and 30 °. The tube shoulder 22 and the connecting flange 32 are formed such that the inner surface of the connecting flange 32 forms a connecting surface 34 and the outer surface of the laminate 16, 18, 20 in the end of the tube body 12 facing the tube head 14 forms a connecting surface 36. In this case, the construction is chosen such that the two connecting surfaces 34, 36 are operatively connected in such a way that they ensure a permanent, firm connection between the metal barrier 28 designed as tube head 14 and the tube body 12. In the example shown here in Fig. 1, the connection between the connecting surfaces 34, 36 realized by means of a sealing wax, a so-called hot melt. But it can also be made with the plastic of the laminate 16, 18, 20 of the tube body 12 by melting the same or by adhesive. The type of connection and the method applied induction melting, ultrasonic, pressure welding, etc. are each adapted to the laminate used and the metal or alloy used, the materials used are primarily based on the product to be packaged, with and / or in which they should not cause any chemical reactions. For cost reasons or if the other manufacturing or use properties z. As the metal barrier to be used for the metal 28 are unfavorable, the metal barrier 28 may also be coated against the inside of the tube and / or painted.

FIG. 2 shows a side view with a partial section in the tube head 14 of a second embodiment of the tube-shaped packaging according to the invention. This second embodiment differs from the embodiment shown in Fig. 1 only in that in this example, the tube head 14 made of metal is inserted into the tube body. In contrast to the example shown in FIG. 1, here the outer surface of the connecting flange 32 is the connecting surface 34 and in the end region of the tube body 12 facing the tube head 14, the inner surface of the laminate 16, 18, 20 is the connecting surface 36. The laminate of the tube body 12 can also be moved so far beyond the connecting flange 32 of the tube head 14 that he struck over the shoulder 22 of the tube head 14 and this area of the tube shoulder 22 can still serve as a connecting surface 34 of the metal barrier 28. The embodiment illustrated in FIG. 3 is analogous to that shown in FIG. 1 and represents a further embodiment of the tube-shaped packaging according to the invention. As metal barrier 28, it again has a metallic tube neck 24 with a metal membrane 30 closing off the tube opening 29 and abutting one another In contrast to the metal ring 21 in FIGS. 1 and 2 of the metal ring 21 is here formed as a circular ring, which is covered by a tube shoulder 22 made of plastic. As the connecting surface 34 of the metal barrier 28 here serves the radially outer region of the tube body 12 facing surface of the metal ring 21. As shown in Fig. 2, the tube shoulder can be pulled out to a connecting flange 32 which is also connected to the tube body 14. However, the metal ring 14 can also be flush with the side facing the tube body 14, finally coated with the plastic of the tube shoulder 22 or the tube shoulder 22 may be connected to the tube opening 29 facing side of the metal ring 21 with the metal barrier 28, so that the metal barrier 28 either disappears into the tube body 12 after connection to the tube body 12 or remains visibly visible between the tube head 14 and the tube body 14. Figure 3 shows the possibility that the tube neck 24 is not provided with a thread, but on the metal tube neck 24 a working on the principle of snap closure lid 40 made of plastic is provided. For these variants, there are any number of other variants, in which form the connection between the metal barrier 28 and the tube body 12 and a possible tube shoulder 22 can be realized.

In Fig. 4 is a very easy to produce and cost-effective embodiment of the inventive tube-shaped package 10 is shown. Tube body 12 and tube head 14 are formed in a conventional manner of plastic and connected to each other. As a metal barrier 28 but in this example in the connection region between the tube head 14 and tube body 12 is a metal foil 42 or a metal laminate foil or a provided metallic insert body. The insert body is not shown, but is distinguished from the film 42 by a higher stability and possibly one of the inner contour of the tube head 14 approximated shape. Due to the latter, less volume is given away during filling and the space between shoulder 22 and metal barrier 28, which fills up uncontrollably after opening, is reduced. In order to obtain the simplest possible embodiment of this embodiment, it is advantageous if the angle α = 0 ° or nearly 0 °. Both the metallic foil 42 and the insert body shield the inside of the tube in the region of the tube head in a diffusion-tight manner against the outside and can be punctured for the use of the tube contents by means of a corresponding tool which can be introduced via the tube opening 29. Insert body and metallic foil 42 may be connected either via the tube head 14 or directly to the tube body 12. Again, the skilled artisan readily recognizes in what way the design can be varied without affecting the inventive idea.

In Figure 5, exemplary embodiments of the connection of tube head with tube body are shown schematically in the center-longitudinal section of the tubes.

In FIG. 5 a, the tube body 12 is connected to a one-piece tube head 14 made of metal 28 by means of a thin layer of an adhesive 44 in such a way that the connecting flange 32 surrounds the tube body edge.

In FIG. 5b, the tube body 12 is connected to a one-piece tube head 14 made of metal 28 by means of a thin layer of adhesive 44 such that the connecting flange 32 is connected to the inside 20 of the tube body 12. As already mentioned, it may be advantageous that the adhesive 44 is present not only in the region of the overlap of metal barrier 28 and tube body 12, as shown, but as a layer covers the entire inner side of the tube body. Furthermore, FIG. 5b shows the possibility that the tube body can also be connected to the tube head in the area of the tube shoulder. FIG. 5c shows an embodiment of the connection in which the metal barrier 28 is connected to the tube body 12 by means of casting of a thermoplastic material. In the region of the overlap of barrier layer 18 and metal barrier, a thin layer of adhesive 44 is present. In the embodiment shown, a thread 26 is formed by the casting by means of thermoplastic material. The fact that the metal barrier is integral and the entire tube head is consistently covered with a metal barrier, an optimal seal is ensured in all these embodiments.

The person skilled in the art will readily recognize how the shapes shown in FIGS. 1 to 5, variants of the connection design, the arrangement of the connection surfaces of the choice of material, etc., can be transferred or combined with one another.

LIST OF REFERENCE NUMBERS

10 tube-shaped packaging 28 metal barrier

12 tube body 29 tube opening

14 tube head 30 metal diaphragm

16 outer layer 32 connecting flange

18 barrier layer 34 connecting surface

20 inner layer 36 connecting surface

21 metal ring 38 longitudinal seam

22 tube shoulder 40 plastic lid

24 tube neck 42 metal foil

26 thread 44 adhesive

Claims

claims

A tube-shaped package (10) having a tube head (14) and a tube body (12), wherein the tube body (12) is substantially formed of a multi-layer material (16, 18, 20) with an integrated barrier layer (18); characterized in that the interior of the tube-shaped packaging in the region of the entire tube head (14) by a metal barrier (28) is diffusion-tight shielded from the outside.

Tubular packaging (10) according to claim 1, characterized in that the metal barrier (28) is formed by the tube head (14) having a tube neck (24) made of metal and the tube opening (24) formed by the tube opening (29). is closed by a pierceable metal membrane (30) and the tube neck (24) on its the tube opening (29) opposite side into a

Metal ring (21) opens, which is connected to the tube body (12).

3. Tubular packaging (10) according to claim 2, characterized in that the metal ring (21) substantially has approximately the shape of a truncated cone and the tube shoulder (22).

4. tube-like packaging (10) according to claim 2, characterized in that the metal ring (21) has substantially the shape of a circular ring and of a tube head (14) limiting the outside tube shoulder (22) is covered, wherein the tube shoulder

(22) is preferably formed of plastic or a plastic laminate.

5. Tubular packaging (10) according to claim 4, characterized in that the metal ring (21) directly or via the

Tube shoulder (22) made of plastic or plastic laminate with the tube body (12) is connected.

6. Tubular packaging (10) according to claim 1, characterized in that the tube head (14) is formed in a conventional manner from plastic and as a metal barrier (28) in the connecting region between the tube body (12) and tube head (14) a puncturable metallic foil (14). 42) or a puncturable metallic one

Insertion body is provided.

7. Tubular packaging (10) according to claim 6, characterized in that the metal barrier (28) directly or via the tube head (14) formed in the conventional manner from plastic with the

Tube body (12) is connected.

8. tube-like packaging (10) according to any one of the preceding claims, characterized in that the metal barrier (28) formed from one piece and in particular by cold working, deep drawing,

Stretching, extrusion, calendering, turning or casting, in particular by extrusion is made.

9. Tubular packaging (10) according to any one of the preceding claims, characterized in that the metal barrier (28)

Tinplate, aluminum, an aluminum alloy or other compared to the product to be stored in the package chemically inactive metal or a chemically inactive alloy is made.

10. Tubular packaging (10) according to any one of the preceding claims, characterized in that the metal barrier (28) with the tube body (12) via a connecting surface (34) is fixedly connected, which is preferably arranged on a connecting flange (32) and with a connecting surface (36) of the tube body (12) cooperates, wherein the connecting surfaces (34, 36) of the metal barrier (28) and the

Tube body (12) can interact in particular in the form of abutting surfaces.

11. Tubular packaging (10) according to claim 10, characterized in that the metal barrier (28) with the tube body (12) is connected by means of sealing wax, plastic, or adhesive.

12. Tubular packaging (10) according to any one of the preceding claims, characterized in that the metal barrier (28) is coated on its side facing the product to be packaged.

13. A method for producing a tube-shaped package (10) according to any one of claims 1 to 12, characterized in that a

Tube head (14) with a tube body (12) are interconnected.

14. The method according to claim 13, characterized in that the connection of the tube head (14) with the tube body (12) by a

Adhesive (44) takes place.

15. The method according to claim 13, characterized in that the connection of the tube head (14) with the tube body (12) by the melting of a layer (16, 20) of a thermoplastic

Plastic, which is part of a multilayer material (16, 18, 20) takes place.

16. The method according to any one of claims 13 to 15, characterized in that the surface of the tube body (12) has been subjected at least in the region of the connection with the tube head (14) prior to joining a chemical or physical or physico-chemical pretreatment.

17. The method according to claim 16, characterized in that the pretreatment is a corona treatment, a gas phase fluorination or a plasma treatment, in particular a low-pressure plasma treatment or an atmospheric plasma treatment.

18. A pack characterized in that it consists of a tube-shaped package (10) according to any one of claims 1 to 11 and an ingredient or a content composition.

19. A pack according to claim 18, characterized in that the ingredient or the content composition is moisture-sensitive or moisture-reactive.

20. A pack according to claim 19, characterized in that the ingredient or the content composition at least one

Isocyanate group-containing polyurethane prepolymer or at least one alkoxysilane-containing polymer is or contains.

21. A method for producing a pack according to any one of claims 18 to 20), characterized in that a packaging produced by a method according to any one of claims 13 to 17 filled with an ingredient or a content composition and then the tube body (12) on the tube head (14) opposite side is closed.

22. The method according to claim 21, characterized in that the inside of the tube body in the region of the closure before closing are free of ingredient or content composition.

23. The method according to claim 21 or 22, characterized in that the closure of the tube body takes place under the action of heat by gluing, sealing, pressing or welding.