WO2009138218A1

WO2009138218A1 - Packaging covering film, container, packaging and packaging product unit

Info

Publication number: WO2009138218A1
Application number: PCT/EP2009/003391
Authority: WO
Inventors: Erwin Pasbrig
Original assignee: Alcan Technology & Management Ltd.
Priority date: 2008-05-16
Filing date: 2009-05-13
Publication date: 2009-11-19
Also published as: CN101580153A; DE102008023952A1

Abstract

The invention relates to a packaging covering film (10, 10A, 10B, 20, 20A, 20B) for sealing containers (30), especially containers with an aggressive filling material. Said film comprises an outer protective layer arrangement (2) and an outer barrier functional layer arrangement (1), said barrier functional layer arrangement (1) comprising: at least one aluminium layer (3), and at least one non-metallic functional layer. According to the invention, the non-metallic functional layer is a plastic functional layer (5).

Description

Packaging cover film, container, packaging and packaging product unit

The invention relates to a packaging cover film for sealing containers, in particular containers with an aggressive filling material, with an outer protective layer arrangement and an outer barrier functional layer arrangement, which barrier functional layer arrangement comprises at least one aluminum layer and at least one non-metallic functional layer. The invention further relates to a container and a container as well as a packaging and a packaging product unit.

Usually, containers such as blisters or the like. for the packaging of solid or liquid products, which are intended for filling with comparatively aggressive contents, provided with a cover sheet, which has a certain resistance to the aggressive products over the storage time. In particular, aggressive products are products which over the storage time contain basic or acidic substances, such as e.g. Halogens or hydrogen halides can give off. In addition to the protective layer arrangement and the barrier functional layer arrangement, packaging cover films of the type initially mentioned regularly have a sealing layer, which is provided in the container for sealing on a container wall and faces the product side, so that a sealing layer regularly has direct contact with the aggressive filling material.

Thus, for example, a packaging cover film of Chinese Patent Publication CN 2 560 582Y has a printing Layer which is attached via an adhesive on a barrier functional layer arrangement and which has a heat-sealing layer, which in turn is attached via an adhesive to the barrier functional layer arrangement. The barrier functional layer arrangement is formed by an aluminum layer on an aluminum-based layer and by a special coating as a barrier functional layer. The sealing layer has - except its sealing function - no other function.

In particular, by acidic or basic or other aggressive substances in aggressive products harmful corrosion is caused on an aluminum layer or sealing layer. In the case of the functional layer of CN 2 763 205Y disclosed in combination with a sealing layer, the aluminum layer in the barrier functional layer arrangement is to be protected from iodine.

In isolation, CN 1 654 571 discloses a functional coating material for a lacquer.

It is known to carry out such non-metallic functional layers within a barrier functional layer arrangement with lacquer layers of different chemical composition. Coating layers experience has the disadvantage that pores can form during drying. These pores can often form cannulas with capillary function, which are responsible for increased migration and / or diffusion of aggressive substances, especially gaseous and / or liquid aggressive substances. Although the barrier effect of a barrier functional layer arrangement can be achieved by carrying out multiple lamination with the same lacquer or chemically different However, due to the above-mentioned disadvantage, the risk of increased migration / diffusion can not be excluded. On the other hand, sealing lacquers are regularly used for a sealing layer, which should also have good sealing values for the plastic of a container wall.

It would be desirable to have a layer arrangement which provides an improved barrier function, in particular also a sealing function, for a packaging cover film.

At this point, the invention is whose task is to provide a packaging cover film, a container, a container and a packaging and a packaging product unit, in which the barrier function is improved and yet is relatively simple. In particular, the packaging cover film should have an improved diffusion or migration-inhibiting effect. Above all, the packaging cover film should - if necessary even after a drying or solidification time - have a comparatively uniform surface, in particular a surface which is largely free of damage such as needles, inclusions o. The like. In particular, the packaging cover film should be relatively easy to produce.

With regard to the packaging cover film, the object is achieved by the invention by means of a packaging cover film of the aforementioned type, in which according to the invention the non-metallic functional layer is a plastic functional layer. - A -

The invention has recognized that a barrier function of the barrier functional layer arrangement is significantly improved by the use of plastics instead of paints. While an aluminum layer above all ensures a tightness of the barrier functional layer arrangement, the plastic functional layer according to the invention primarily serves a barrier function in order to prevent aggressive substances and thus ultimately a corrosion protection of the aluminum layer.

A plastic functional layer leads on the one hand to a comparatively uniform surface. Damage such. As cannulas or inclusions are characterized - even in the case of a drying and / or solidification time - largely avoided. As a result, the diffusion and / or migration-inhibiting effect of the plastic functional layer is markedly increased in comparison to the usual non-metallic functional layers based on lacquer described at the outset.

Within the scope of a very particularly preferred development of the invention, it has been recognized that a plastic functional layer-in addition to its barrier function effect explained above-can be formed on the other hand simultaneously as a seal. This has the advantage that a separate sealing layer without further function in a layer arrangement for a packaging cover film can be omitted in principle.

In particular, it has proven in the context of the concept of the invention as an advantageous development that the plastic functional layer forms an outer surface. In other words, the concept of the invention provides, in particular, a packaging cover film which, in addition to an ner outer protective layer arrangement and an outer barrier functional layer arrangement has no further outer separate sealing layer, which serves exclusively the sealing function

As a result, the packaging cover film also proves to be particularly simple in construction and in production. The concept of the invention further includes the possibility of incorporating further layer arrangements, in particular further functional layer arrangements, or further layers and / or functional layers, between the outer layer arrangements.

If the plastic functional layer, in particular the corrosion protection layer, does not seal against the inside of the bottom material of a container to be closed, it can also be used as an intermediate layer with respect to the film. In a preferred embodiment, in the case a barrier functional layer arrangement in particular also consist of two aluminum foils or an aluminum foil and a plastic film. In the former case, and in the case where the container-interior aluminum layer is an aluminum foil, corrosion of the same could be tolerated to a small extent while the aluminum outer layer of the container is fully protected by the plastic functional layer. In principle, in such a case, an aluminum layer of the barrier functional layer arrangement, which is located further inside with respect to the container, may be provided with a lacquer, a coating or a lamination with a corresponding sealing property. The aluminum foils - hard and / or soft - can have the same thickness or different thicknesses. Thicknesses have in the range of 4 to 40 microns, preferably 6 to 20 microns.

A layer, preferably a film, according to the concept of the invention is to be understood as meaning in addition to a laterally continuously extending layer also a laterally delimited layer region which does not laterally extend completely along a packaging cover film. With regard to an external layer or outer layer arrangement, the present invention defines "outside" with respect to the packaging cover film In the case of a container, a protective layer arrangement arranged externally with respect to the film is preferably provided to face away from the product side, ie to be initially arranged relative to the container.

Further advantageous developments of the invention can be found in the subclaims and specify in detail advantageous possibilities to realize the above-described concept within the scope of the problem as well as with regard to further advantages.

In particular, a plastic functional layer, which is preferably disposed on the outside, and which is of a sealed design, and the aluminum layer is preferably connected to one another via an adhesive layer. For this purpose, adhesives are suitable, depending on the purpose of a comparatively good adhesion between aluminum and plastic. In particular, adhesives based on epoxy resin constituents and / or silane constituents are also suitable. In principle, adhesion can be achieved by means of a laminating agent or by extrusion lamination between the plastic of the plastic functional layer and the aluminum of the aluminum layer. It may be advantageous - additionally or alternatively - also provided an adhesion-improving primer. This or another adhesion promoter can advantageously also be applied as a lacquer or by extrusion.

It has proved to be advantageous that the aluminum layer has a thickness in the range of 6 to 40 μm, preferably in the range of 7 to 30 μm. An aluminum layer can be made hard or soft as needed. The aluminum layer can be glossy on one side and matt on the other side - it can also be glossy on both sides or matt on both sides. A selection of these textures can be advantageous depending on the intended use.

In particular, a material which has been selected from the group consisting of: PET (polyethylene terephthalate), PP (polypropylene), PVC (polyvinyl chloride), PE (polyethylene), PVdC (polyvinylidene chloride) has proved to be advantageous for a plastic functional layer ) in particular - but not limited to - LDPE (low-density polyethylene), possibly also HDPE (high-density polyethylene), PE / PB (polyethylenes / polybutylene), PA (polyamide), COC (cycloolefin copolymer), COP (Cyclo Olefinic Polymer), ABS (acrylonitrile butadiene styrene) or combinations thereof. These materials have proven to be particularly advantageous for forming a uniform surface and at the same time to form a sufficient sealability. In this case, it is particularly advantageous that the sealability should mainly exist in relation to a container wall of a container, which usually consists of plastic.

In particular, it is within the scope of the concept of the invention that the layer arrangement of the outer barrier functional layer arrangement is repeated as internal barrier functional layer arrangement as needed simply or repeatedly - this in any order and with or without Haftvermittler. For example, a first barrier functional layer arrangement for the second barrier functional layer arrangement with an aluminum-aluminum contact / adhesion or with an aluminum-plastic contact / adhesion can take place. The first or second barrier functional layer arrangement may in particular be the outer barrier functional layer arrangement, and the respective other barrier functional layer arrangement may be an inner barrier functional layer arrangement.

Moreover, it is also within the scope of the concept of the invention that several aluminum layers are provided within a barrier functional layer arrangement or, in addition to an aluminum layer, further metal layers based on metals other than aluminum, for example metals from the group consisting of: Al, Cu, Ag, Pd, Pt, Au or combinations thereof.

It is also possible to provide a plurality of plastic functional layers within the functional layer arrangement in a sealing manner. be. It is also possible for further plastic functional layers to be formed non-sealingly within the functional layer arrangement, as long as this is not a plastic functional layer which is arranged to form an outer surface.

In addition, other non-metallic functional layers may also be provided, for example functional layers based on a metal oxide. This can advantageously be applied to a carrier foil and advantageously lie to the aluminum. This can also be advantageous by evaporation and / or sputtering of the metal oxides in a vacuum, e.g. be applied directly on the aluminum. The adhesion mediation between the individual layers can be carried out in different ways and according to requirements, for example by laminating, gluing or extrusion coating.

Finally, it is within the scope of the concept of the invention to provide further non-functional layers which serve other purposes in addition to the protective layer arrangement.

In principle, in addition to the barrier functional layer, a functional layer is also possible which has a preferred other or further effect, for example the effect of trapping oxygen or other aggressive or harmful substances. In this case, in addition to a corrosion protection of the aluminum layer in particular also the protection of the filling material from damage in the purpose of a functional layer.

A protective layer arrangement has proved to be particularly advantageous, as far as its outer layer is is printable. Also possible is a lacquered, lacquered and printed, printed and overpainted, lacquered / printed and overpainted protective layer. A protective layer may additionally or alternatively be laminated with paper; it can be made on the basis of a plastic film or a plastic film with other plastic films or in combination with paper.

The aluminum layer itself may, as required, face the matte or glossy side of the protective layer arrangement or be remote from the protective layer arrangement.

As particularly preferred in the context of the concept of the invention, two variants have been found. A first variant provides that the at least one plastic functional layer in the form of a plastic film, film o. The like. is formed. In a second variant, the plastic functional layer is formed in the form of a plastic coating.

Referring to the first variant with the plastic functional layer in the form of a plastic film, film o. The like. Advantageously, an adhesive layer is formed as a laminating. A laminating agent may for this purpose in particular be designed with an areal density in the range from 0.5 to 9 g / m ² , preferably in the range from 2 to 6 g / m ² . The compound of the plastic film can be advantageously connected by calendering with the surface of the aluminum foil. The thickness of the plastic functional layer according to the first variant can be in the range of preferably 4 to 60 μm, preferably in the range of 6 to 30 μm. The plastic film, film o. The like. can be designed as cast film, in particular stretched film. Depending on requirements, a monoaxially or biaxially oriented film has proven to be particularly preferred.

With regard to the first variant of the invention, the plastic functional layer in the form of a plastic film, film o. The like. Has proven to be particularly preferred if it is formed from a material which is selected from the group consisting of: PVC (polyvinyl chloride ), PP (polypropylene), PET (polyethylene terephthalate), PAN (polyacrylonitrile) (BarexD), PVdC (polyvinylidene chloride), Surlyn®, PCTFE (polychlorotrifluoroethylene) (Aclar®), PC (polycarbonate), PEN (polyethylene naphthalate) , PS (polystyrene) or combinations thereof.

In addition, the plastic functional layer in the form of a plastic film, film or the like. be steamed and / or sputtered. For this purpose, in particular inorganic substances such as silicon and / or metals and / or oxides thereof have proven to be preferred steaming materials. Metals or oxides are preferably selected from the group consisting of: Al, Cu, Ag, Pd, Pt, Au, Si or combinations thereof. Inorganic substances such as silicon and / or metals and / or oxides thereof can be selected according to the purpose of the vapor deposition and have different advantages as needed. It can also be done multiple coatings such. Metal / metal or metal / oxide or oxide / metal.

Regarding the second variant of the development of the concept of the invention, as explained above, the plastic Functional layer formed in the form of a plastic coating.

In the second variant, the plastic coating is preferably designed with an areal density in the range of 6 to 50 g / m ² , preferably in the range of 8 to 40 g / m ² .

As a particularly preferred material of the plastic coating, a material has been selected from the group consisting of: ionomers (Surlyn®, Bynel®, Apeel®), PE (polyethylene), PP (polypropylene), PET (polyethylene terephthalate), EAA ( Ethylene acrylic acid copolymer), EVA (ethylene vinyl acetate copolymer) or combinations thereof. These materials can be applied particularly expedient in the context of a coating. As far as possible, the application may also be carried out, for example, by knife coating, brushing, brushing, spraying or pouring, e.g. Curtain casting, done.

A plastic coating by extrusion coating has proven to be particularly advantageous.

Thus, it is provided with particular advantage that the plastic functional layer takes place in the form of a plastic coating by co-extrusion coating. In this case, for example, a sequence A / B or A / B / A or A / B / C or combinations thereof to form the plastic functional layer in the form of a plastic coating can be performed.

In the event that a plastic coating by monoextrusion coating proves useful, has become in particular, a sequence of A, A / A or A / A / A or combinations thereof has proved advantageous.

In order to improve the adhesion of the aluminum layer, the aluminum layer may preferably be provided with an adhesion-improving primer. An adhesion promoter can advantageously also be applied as a lacquer or a primer in coextrusion is the adhesion promoter to the aluminum.

Concerning the container, the object is achieved by the invention by means of a container of the type mentioned, which has a container wall according to the invention and an opening of the container wall is sealed by a packaging cover film according to the concept of the invention, wherein the plastic functional layer of the product side is facing. This has the advantage that in the case of filling the product - in contrast to the prior art - not with a functionless sealing layer in direct contact, but at best comes into contact with the relatively aggressive against aggressive contents plastic functional layer, according to the concept of Invention is formed at the same time sealing.

In a particularly preferred manner, it is provided that an edge of the opening has a sealing surface, against which the outer surface of the plastic functional layer is sealed. It has proved particularly expedient that the sealing property of the plastic functional layer is matched to the sealing property of the sealing surface at the edge of the opening. It should be noted that in a particularly preferred embodiment, a container wall made of plastic. In this respect, sealed plastic Functional layers proved to be particularly preferred in which the sealing property is designed with respect to a plastic-plastic seal.

The concept of the invention also leads to a container with a number of containers of the type described above, in particular containers for aggressive contents.

The concept of the invention also leads to a packaging with a packaging cover sheet according to the concept of the invention or a container or a container of the kind explained above.

Finally, the concept of the invention also leads to a packaging product unit with a packaging cover film according to the concept of the invention or a container or a container of the kind explained above, wherein the plastic functional layer directly faces the product. This has the previously explained advantages over the prior art.

The packaging product unit has proved to be particularly suitable for a filling material which is selected from the group of agents consisting of: pharmaceutical, medical, diagnostic, cosmetic, food supplements, foodstuffs d.dgl. or combinations thereof. Preferably, the packaging product unit is suitable for a filling with aggressive substances such as acid or base materials, in particular also for substances based on halogen or with halogens and / or hydrogen halide o. The like. Embodiments of the invention will now be described below with reference to the drawing. This is not necessarily to scale the embodiments, but the drawing where appropriate for explanation, executed in a schematic and / or slightly distorted form. With regard to additions to the teachings directly recognizable from the drawing reference is made to the relevant prior art. It should be noted that various modifications and changes may be made in the form and detail of an embodiment without departing from the general idea of the invention. The disclosed in the description, in the drawing and in the claims features of the invention may be essential both individually and in any combination for the development of the invention. In addition, all combinations of at least two of the features disclosed in the description, the drawings and / or the claims fall within the scope of the invention. The general idea of the invention is not limited to the exact form or detail of the preferred embodiment shown and described below or limited to an article which would be limited in comparison to the subject matter claimed in the claims. For the given design ranges, values within the stated limits should also be disclosed as limit values and be arbitrarily usable and claimable. In detail, the drawing shows in:

1 shows a schematic of a construction of a particularly preferred embodiment of a packaging cover film according to a first variant;

2 shows an embodiment of a packaging cover film according to a second variant;

3 shows a particularly preferred embodiment of a container with a packaging cover film of an embodiment of FIG. 1 or FIG. 2, Fig. 4: a container with a number of containers in plan view according to a preferred embodiment of the invention for receiving aggressive contents in the pharmaceutical field.

1 shows a schematic cross-sectional view of a construction of a packaging cover film 10, 10A, 10B according to a first variant and modifications thereof.

The packaging cover film 10 has an outer protective layer arrangement 2 with a single further outer barrier functional layer arrangement 1. The barrier functional layer arrangement 1 is presently formed with a single aluminum layer 3, which is connected via an adhesive layer 4 - the latter formed by a laminating adhesive - with a non-metallic functional layer in the form of a plastic functional layer 5 formed as a plastic film. The plastic functional layer 5 forms an outer surface 8 and is designed to be sealed.

According to a modification in section A, the packaging cover film 10A is provided with a barrier functional layer arrangement 1, which in turn has an aluminum layer 3 which is connected to a plastic functional layer 5 via an adhesive layer 4, wherein in the modification of the packaging cover film 10A the plastic functional layer 5 is provided with a vapor deposition layer 6. For the vapor deposition layer 6, inorganic substances such as silicon, silicon oxide, metals or metal oxides can be used. In the present case it is an Al vaporization.

The adhesive layer 4 is presently formed with an epoxy resin-based adhesive. In principle, in embodiments not shown here, one- or two-component laminating adhesives (synthetic or natural) with organic solvents or water.

The plastic functional layer 5 is formed here with PVdC. Other suitable materials such as PVC (polyvinyl chloride), PET (polyethylene terephthalate), PP (polypropylene), PAN (polyacrylonitrile) (Barex®), Surlyn®, PCTFE are suitable for forming the plastic functional layer 5 in the form of a plastic film (Aclar®), PC (polycarbonate), PEN (polyethylene naphthalate), PS (polystyrene) or combinations thereof. The other materials specified in claim 5 are basically suitable for the formation of the plastic functional layer 5.

In view B of Fig. 1, a further modification of the packaging cover sheet 10B is schematically indicated, are inserted in the between the outer protective layer assembly 2 and the outer barrier functional layer assembly 1 by points indicated further functional layers.

In addition, the packaging cover films 10, 10A, 10B shown in FIG. 1 also include those modifications in which the functional layer arrangement 1 is repeated in its construction as appropriate - if appropriate also in the reverse order of the layers 3, 4, 5 in FIG Packing cover film 10 or layers 3, 4, 6, 5 in the packaging cover film 10A.

In addition, the packaging cover films shown in FIG. 1 also include those modifications in which the layer sequence 9 comprising the plastic functional layer 5 and, if appropriate, further layers of the barrier functional layer arrangement 1, except the aluminum layer 3, depending on expediency and in any order and arrangement is repeated. Other modifications include packaging cover sheets which have at least one further inner plastic functional layer in addition to the aluminum layer 3.

Also not shown are those modifications in which the aluminum layer 3 is repeated several times or other additional metal layers are present in the barrier functional layer arrangement 1.

2 shows in a schematic cross-sectional view the view of a basic structure of a packaging cover film 20 with modifications 2OA and 2OB according to a second particularly preferred variant of the invention, according to which the plastic functional layer 5 is formed in the form of a plastic coating. 2 shows in the main view a modification in which the plastic functional layer 5 is designed with two different plastic coatings 5A, 5B. View A shows a modification of the packaging cover film 20A, in which the plastic functional layer 5 is made with two identical plastic coatings 5A and 5A. Other sequences of plastic coatings are also possible, as well as the repetition of the layer sequence 9 in the appropriate number and order.

Not shown are those modifications in which the aluminum layer 3 is expediently repeated or supplemented by further metal layers.

In view B of FIG. 2, similar to FIG. 1, a modification of a packaging cover film 2OB is shown by dots, in which further layers or functional layers are provided between the outer protective layer arrangement 2 and the outer barrier functional layer arrangement 1. be it other functional layers or functional layers with the same or similar structure as the functional layer 1. In the case of the plastic functional layer 5 embodied herein in the form of a plastic coating, in particular materials from the group consisting of ionomers, EAA (ethylene acrylic acid copolymer), EVA (ethylene vibyl acetate copolymer) or combinations thereof have proven to be advantageous. Ionomers may be formed, for example, as Surlyn®, Bynel®, Apeel®. In addition, materials such as those listed in claim 11, namely PET (polyethylene terephthalate), PP (polypropylene), PVC (polyvinyl chloride), PE (polyethylene) are also suitable. In particular - but not limited to - LDPE (low density polyethylene), PE / PB (polyethylene / polybutylene), PA (polyamide), COC (cycloolefin copolymer), COP (cycloolefinic polymer), ABS (acrylonitrile butadiene styrene) , PP (polypropylene) or combinations thereof - other materials are suitable.

FIG. 3 shows the schematically illustrated cross section of a container 30 with a packaging cover film as shown in FIG. 1 or FIG. 2 as a variant. In the present case, only the protective layer arrangement 2 and barrier functional layer arrangement 1 are symbolically designated next to the aluminum layer 3 and the plastic functional layer 5. In addition, the container 30 has a container wall 11, at whose opening edge a sealing surface 12 is attached and at the adjacent the outer surface 8 of the plastic functional layer 5 is sealed.

Usually, the removal of the product from the container by pushing out. In special cases, the opening may be required by peeling. The peelable opening is used for the removal of products that can be broken by the mechanical stress when pressed out or deformed in powdery products. A peelable opening is also required as the plastic film or combinations or coating is not durchdrückbar. The vote of a sealing force may be required. For such and other cases, the sealing properties of the plastic functional layer 5 are fundamentally advantageously matched to the sealing property of the sealing surface 12. In the present case, the container wall 11 is formed from plastic. The plastic functional layer 5 is thus directly facing the Füllgutseite and comes when filling the container with an aggressive filling material in direct contact with this.

4 shows a packaging product unit 40 for use in the pharmaceutical sector in the form of a multi-container drip blister 30. A cover region of the packaging product unit 40 is complete with a packaging cover film 10, 10A, 10B, 20 2OA, 2OB according to one of the variants as shown and described in FIGS. 1 and 2.

Usually, such containers of the packaging product unit 40 are also used for the packaging of solid, liquid or gaseous products, as they are used not only in pharmacy, but possibly also in medical technology, diagnostic application, cosmetics, food supplement industry and for the packaging of food and or confectionery are provided. The containers 30 may be made, for example, by thermoforming or cold working (conveniently, for example, ironing, deep drawing or coining).

In summary, the invention relates to a packaging cover film 10, 10A, 10B, 20, 20A, 20B for sealing containers, in particular containers with aggressive contents, with an outer protective layer arrangement 2 and an outer barrier functional layer arrangement, which has barrier functional layer arrangement 1: - At least one aluminum layer 3rd

- At least one non-metallic functional layer. In this case, according to the invention, the non-metallic functional layer is a plastic functional layer 5. Preferably, this is arranged as an outer surface 8 and formed in a sealing manner. For the same parts or parts of the same function or similar parts or parts of similar function, the same reference numerals have been used herein for the sake of simplicity.

Claims

claims

A packaging cover film (10, 10A, 10B, 20, 20A, 20B) for sealing containers (30), in particular containers with aggressive contents, with an outer protective layer arrangement (2) and an outer barrier functional layer arrangement (1), which barrier functional layer arrangement (1) has:

- At least one aluminum layer (3);

- At least one non-metallic functional layer, characterized in that the non-metallic functional layer is a plastic functional layer (5).

2. Packaging cover sheet according to claim 1, characterized in that the plastic functional layer (5) an outer surface (8) is arranged forming.

3. Packaging cover sheet according to claim 1 or 2, characterized in that the plastic functional layer (5) is formed sealing.

4. Packaging cover sheet according to one of claims 1 to 3, characterized in that the plastic functional layer (5) has a diffusion / migration-inhibiting effect and / or a relatively uniform surface, in particular a surface without damage such as needles or inclusions, especially after a drying / solidification time.

5. Packaging cover sheet according to claim 1, characterized in that the plastic functional layer (5) is non-sealing.

6. Packaging cover sheet according to claim 1 or 5, characterized in that the plastic functional layer (5) is an inner layer of the barrier functional layer arrangement (1).

7. Packaging cover sheet according to one of claims 1 or 5 or 6, characterized in that, the plastic functional layer (5) in the barrier functional layer arrangement (1) is arranged between two aluminum layers.

8. Packaging cover sheet according to one of claims 1 to 7, characterized in that the, in particular externally arranged and sealing trained, plastic functional layer (5) and the aluminum layer (3) via an adhesive layer (4) are interconnected.

9. Packaging cover sheet according to one of claims 1 to 8, characterized in that the aluminum layer (3) has a thickness in the range of 6 to 40 μm, preferably in the range of 7 to 30 μm.

10. Packaging cover sheet according to one of claims 1 to 9, characterized in that the aluminum layer (3) is formed hard or soft, in particular glossy on both sides, both sides dull or one-sided matte and glossy on the other side.

11. Packaging cover sheet according to one of claims 1 to 10, characterized in that the plastic functional layer (5) is formed from a material which is selected from the group consisting of:

PET (polyethylene terephthalate), PP (polypropylene), PVC (polyvinyl chloride), PE (polyethylene), PVdC (polyvinylidene chloride), in particular - but not limited to - LDPE (low density polyethylene), HDPE (high density polyethylene), PE / PB (poly- ethylene / polybutylene), PA (polyamide), COC (cycloolefin copolymer), COP (cycloolefinic polymer), ABS (acrylonitrile butadiene styrene), or combinations thereof.

12. Packaging cover film (10, 10A, 10B) according to one of claims 1 to 11, characterized in that the at least one plastic functional layer (5) in the form of a plastic film, film or the like. is formed.

13. Packaging cover sheet according to one of claims 1 to 12, characterized in that an adhesive layer (4) is formed as a laminating layer, in particular with a laminating agent with an areal density in the range of 0.5 -9 g / m ² , in particular Range of 2 - 6 g / m ² .

14. Packaging cover sheet according to one of claims 1 to 13, characterized in that the plastic functional layer (5) in the form of a plastic film, film o. like. has a thickness in the range of 4 to 6 μm, preferably in the range of 6 to 30 μm.

15. Packaging cover sheet according to one of claims 1 to 15, characterized in that the plastic functional layer (5) in the form of a plastic film, film o. The like. As cast film and / or stretched film, in particular monoaxially or biaxially stretched Foil is formed.

16. Packaging cover sheet according to one of claims 1 to 15, characterized in that the plastic functional layer in the form of a plastic film, film od. The like. Made of a material which is selected from the group consisting of: PVC (polyvinyl chloride ) PE (polyethylene) PP (polypropylene) PAN (polyacrylonitrile), especially BAREX® (Ineos brand name)

PVdC (polyvinylidene chloride), ionomer, especially Surlyn® (Du Pont brand name)

PCTFE (polychlorotrifluoroethylene), especially Aclar® (Honeywe11 trade name) PC (polycarbonate) PEN (polyethylene naphthalate) PS (polystyrene) or combinations thereof.

17. Packaging cover sheet according to one of claims 1 to 16, characterized in that the plastic functional layer in the form of a plastic film, film o. The like. a vapor-deposited and / or sputtered layer (6), in particular with inorganic substances, in particular with silicon, silicon oxides and / or metals and / or oxides of metals, in particular wherein metals or metals of the oxides are selected from the group consisting of: Al, Cu, Ag, Pd, Pt, Au or combinations thereof.

18. Packaging cover sheet (20, 20A, 20B) according to one of claims 1 to 17, characterized in that the plastic functional layer (5) in the form of a

Plastic coating is formed.

19. Packaging cover sheet according to claim 18, characterized in that the plastic functional layer in the form of a plastic coating has a surface density in the range of 6 to 50 g / m ² , preferably in the range of 8 to 40 g / m ² .

20. Packaging cover sheet according to claim 18 or 19, characterized in that the plastic functional layer (5) in the form of a

Plastic coating is formed of a material selected from the group consisting of:

Ionomers (especially Surlyn®, Bynel®, Apeel®)

EAA (ethylene acrylic acid copolymer)

EVA (Ethylene Vibyl Acetate Copolymer)

PE (polyethylene)

PP (polypropylene)

PET (polyethylene terephthalate) or combinations thereof.

21. Packaging cover sheet according to one of claims 18 to 20, characterized in that the plastic functional layer (5) is applied in the form of a plastic coating by extrusion coating.

22. Packaging cover sheet according to one of claims 18 to 21, characterized in that the plastic functional layer (5) in the form of a plastic coating by coextrusion coating, in particular in a sequence A / B or A / B / A or A / B / C. or combinations thereof.

23. Packaging cover sheet according to one of claims 18 to 22, characterized in that the plastic functional layer (5) in the form of a plastic coating by monoextrusion coating, in particular in a sequence A, A / A or A / A / A or combinations thereof, is applied.

24. Packaging cover sheet according to one of claims 1 to 23, characterized in that the aluminum layer (3) has an adhesion-improving primer.

25, packaging cover film (10, 10A, 1OB, 20, 2OA, 20B) according to one of claims 1 to 24, characterized in that between the outer protective layer assembly (2) and the outer barrier functional layer assembly (1) further functional layer arrangements are arranged ,

26. Packaging cover sheet according to one of claims 1 to 25, characterized in that the protective layer arrangement (2), in particular for the application to an environmental side, has an outer printable layer.

27. Container (30) with a container wall (11), characterized in that an opening of the container wall (11) by a packaging cover film (10, 10A, 1OB, 20, 20A, 20B) according to one of claims 1 to 26 sealed is, wherein the plastic functional layer (5) faces the product side.

28. Container according to claim 27, characterized in that an edge of the opening has a sealing surface (12) against which the outer surface (8) of the plastic functional layer (5) is sealed, in particular the sealing property of the plastic functional layer (12). 5) is matched to the sealing property of the sealing surface (12) at the edge of the opening.

29. Container according to claim 27 or 28, characterized in that the container wall (11) is made of plastic.

30. Container (40) with a number of containers (30) according to any one of claims 27 to 29, in particular containers for an aggressive filling.

31. Packaging with a packaging cover film (10, 10A, 10B, 20, 20B) according to one of claims 1 to 26 or a container (30) according to one of claims 27 to 29 or a container (40) according to claim 30.

32. Packaging product unit comprising a packaging cover sheet (10, 10A, 1OB, 20, 20A, 20B) according to one of claims 1 to 26 or a container (30) according to one of claims 27 to 29 or a container (40 ) according to claim 30 or a package according to claim 31, wherein the plastic functional layer (5) directly faces the product.

33. Packaging product unit according to claim 32, characterized in that the filling material is selected from the group of agents consisting of: pharmaceutical, medical, diagnostic, cosmetic, nutritional supplements, food or the like. or combinations thereof.

34. Packaging product unit according to claim 32 or 33, characterized in that the filling material comprises an acidic or basic substance, such. Halogens and / or hydrogen halide od. Like. having.

35. Packaging product unit according to one of claims 32 to 34, characterized in that an opening thereof by bridging, peeling or peel-push takes place.