OA16555A - Improved composite system for packaging. - Google Patents
Improved composite system for packaging. Download PDFInfo
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- OA16555A OA16555A OA1201300372 OA16555A OA 16555 A OA16555 A OA 16555A OA 1201300372 OA1201300372 OA 1201300372 OA 16555 A OA16555 A OA 16555A
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- Prior art keywords
- layer
- barrier
- composite system
- paper
- layers
- Prior art date
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- 239000002131 composite material Substances 0.000 title claims abstract description 56
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 22
- 235000013305 food Nutrition 0.000 claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 claims abstract description 17
- 239000011888 foil Substances 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims description 69
- 238000007789 sealing Methods 0.000 claims description 29
- 239000000969 carrier Substances 0.000 claims description 22
- 229920000747 poly(lactic acid) polymer Polymers 0.000 claims description 5
- 229920000298 Cellophane Polymers 0.000 claims description 4
- 239000004626 polylactic acid Substances 0.000 claims description 4
- 229910044991 metal oxide Inorganic materials 0.000 claims 1
- 150000004706 metal oxides Chemical class 0.000 claims 1
- 235000013361 beverage Nutrition 0.000 abstract description 4
- 235000021056 liquid food Nutrition 0.000 abstract description 3
- 239000000853 adhesive Substances 0.000 description 22
- 230000001070 adhesive Effects 0.000 description 22
- 239000004922 lacquer Substances 0.000 description 13
- 229920001800 Shellac Polymers 0.000 description 6
- 239000004208 shellac Substances 0.000 description 6
- 229940113147 shellac Drugs 0.000 description 6
- 235000013874 shellac Nutrition 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000000945 filler Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000000654 additive Substances 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 239000002861 polymer material Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000006096 absorbing agent Substances 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N AI2O3 Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- PZZYQPZGQPZBDN-UHFFFAOYSA-N Aluminium silicate Chemical compound O=[Al]O[Si](=O)O[Al]=O PZZYQPZGQPZBDN-UHFFFAOYSA-N 0.000 description 1
- 229960003563 Calcium Carbonate Drugs 0.000 description 1
- 239000000020 Nitrocellulose Substances 0.000 description 1
- 241000206607 Porphyra umbilicalis Species 0.000 description 1
- 229910020230 SIOx Inorganic materials 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 230000006750 UV protection Effects 0.000 description 1
- FJWGYAHXMCUOOM-QHOUIDNNSA-N [(2S,3R,4S,5R,6R)-2-[(2R,3R,4S,5R,6S)-4,5-dinitrooxy-2-(nitrooxymethyl)-6-[(2R,3R,4S,5R,6S)-4,5,6-trinitrooxy-2-(nitrooxymethyl)oxan-3-yl]oxyoxan-3-yl]oxy-3,5-dinitrooxy-6-(nitrooxymethyl)oxan-4-yl] nitrate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O)O[C@H]1[C@@H]([C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@@H](CO[N+]([O-])=O)O1)O[N+]([O-])=O)CO[N+](=O)[O-])[C@@H]1[C@@H](CO[N+]([O-])=O)O[C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O FJWGYAHXMCUOOM-QHOUIDNNSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 235000010216 calcium carbonate Nutrition 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 229920005839 ecoflex® Polymers 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 235000015203 fruit juice Nutrition 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- 239000004310 lactic acid Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002362 mulch Substances 0.000 description 1
- 229920001220 nitrocellulos Polymers 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 239000011846 petroleum-based material Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000004224 protection Effects 0.000 description 1
- 229910052904 quartz Inorganic materials 0.000 description 1
- 239000004627 regenerated cellulose Substances 0.000 description 1
- 235000021057 semi-liquid food Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 235000012222 talc Nutrition 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 235000010215 titanium dioxide Nutrition 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The invention relates to a multilayer composite system, suited for the manufacture of foil packaging, for example for food. The multilayer composite system is in particular suited for the manufacture of stand-up pouches which are suited for the packaging of liquid food, in particular beverages.
Description
The présent invention relates to a multilayer composite systern, suited for the manufacture of foil 5 packaging, for example for food. The multilayer composite System is in particular suited for the manufacture of stand-up pouches which are suited for the packaging of liquid food, in particular beverages.
Prior art
Food système assembled from composite Systems, in particular stand-up pouches or block 10 bottom pouches, are well-known. Typical composite Systems for such stand-up pouches are usually adhesive laminated and/or extrusion laminated or coated, respectively, in particular metallic foils being présent as barrier layer carrier or as layer for improving mechanical properties. Further layers of such laminates are plastic layers which can hâve different designs depending on their intended application. Here, the employment of materials which are prepared 15 on the basis of petroleum and/or which are not biodégradable or compostable hâve been typical to date.
Such composite Systems as well as stand-up pouches and manufacturing processes for standup pouches or other packaging Systems are known from prior art, for example from EP 2 223 866 A1, WO 2008/037447, or EP 0 600 502. The composite Systems disclosed therein 20 are not biodégradable, so that packaging manufactured from them can only be disposed of in a conventional manner, while disposai by compostîng is not possible. At the same time, these composite Systems employ starting substances that hâve been manufactured using high amounts of energy, such as métal foils, and they moreover consume petroleum-based materials. However, it is, in particular also in the field of food, desired to rather swîtch to eco-compatible 25 materials and in particular to do without métal foils (as these are manufactured using high amounts of energy and other resources, such as water). Compostability would moreover open a simple way of disposai as such laminates and packaging can then be simply correspondingly reused by way of the meanwhile wide-spread waste disposai Systems. The application of materials on the basis of renewable resources would moreover not strain the existing resources 30 of petroleum and also contribute to improve the carbon footprint.
WO 2009/005947 A1, WO 95/31303 A1, DE 202005011641 U1, JP 2010069766 A,
CN 2457074, and WO 2008/037447 disclose packaging materials.
Object of the présent invention
So, it is the object of the présent invention to provide a composite system, in particular suited for 5 the manufacture of a stand-up pouch, wherein the composite system comprises the required properties for the manufacture of such food packaging, such as stability, tightness to liquids, gas passage, etc., wherein eco-compatible or biodégradable materials should be employed to the greatest possible extent.
Brief description of the invention
This object is achieved by a composite system according to claim 1. Preferred embodiments of this composite system are given in subclaims 2 to 8 and in the foliowing description. Furthermore, the présent invention also provides a food packaging comprising the composite system according to one of claims 1 to 8. This food packaging is preferably a stand-up pouch.
Detailed description of the invention
The composite system in accordance with the présent invention comprises, as an essential component, a layer of paper and at least one barrier layer, and is characterized in that the composite system does not comprise any métal foil.
Further embodiments of the composite system according to the invention and advantages in connection with it are listed below. The additional layers defined below, preferred employed 20 layer materials, layer thicknesses and further embodiments can be each combined with each other as desired; the spécifie layer sequences of the composite system according to the invention given below serve to describe and illustrate the présent invention, which, however, is not restricted to such spécifie examples.
Paper layer:
The composite system in accordance with the présent invention comprises, as an essential layer, a paper layer. This paper layer typically has a thickness within a range of 150 to 15 pm, preferably 100 to 25 pm, in particular preferred 80 to 30 pm, such as for example 35, 45 or pm. According to the invention, any types of paper can be used, including papers with fillers, such as kaolin, talc, titanium dioxide, starch, calcium carbonate, etc. The paper to be employed according to the invention can be an uncoated or coated paper, papers with very short fibers being preferred. Partîcularly preferred are transparent papers, e.g. pergamyne paper, a paper manufactured from finished pulp.
The essential paper layer according to the invention is typically présent in the final food packaging relatively far on the side of the composite System facing outwards, and the paper 5 layer to be used according to the invention, in particular the preferred paper layer of pergamyne paper, in particular contributes to the mechanical strength and stiffness of the composite system of the présent invention. The preferred use of pergamyne paper furthermore leads, due to the transparency of this paper, to various types of printing being possible since reverse printing methods, where the interior side of the pergamyne paper layer is printed, are for example 10 possible (the printout then shows through to the outside, so that in particular any damage and abrasion at the printing on the outer surface of the paper layer can be avoided). The paper material of this layer can furthermore be equipped with additional additives, such as absorbers, i etc. Thus, the contribution of this layer to the overall properties of the composite system can be optimized.
Moreover, the use of paper layers permits a contribution to climate protection, since for the manufacture of the paper, including the pergamyne paper, renewable resources are employed, so that here an improvement of the carbon footprint is altogether permitted.
Barrier layer:
Furthermore, the composite system in accordance with the présent invention comprises at least 20 one barrier layer. Depending on the desired embodiment of the composite system, several options are possible here with respect to the type of barrier layer, the position of the barrier layer in the composite system and also with respect to the number of barrier layers. The composite system of the présent invention can comprise one or several barrier layers, such as one, two or three barrier layers. These can differ with respect to their type and position in the composite 25 system. The barrier layer can be, for example, a barrier material layer and/or a sealing layer with a barrier property, and/or a lacquer layer, which will each be described below.
Barrier material layer:
The first option is the provision of a barrier material layer on the side of the above described paper layer located inside in the food packaging. Such a barrier material layer in accordance with the présent invention preferably comprises a carrier layer with a preferably vapor-deposited 5 layer of a barrier material. As an alternative, it is also possible to apply the layer of barrier material as a lacquer as will be described further below. Here, the carrier layer accounts for the major part of the barrier because the preferably vapor-deposited layer of barrier material itself only comprises a few angstrom, and the altematively provided coat of lacquer is also clearly thinner than the carrier layer. As principal component, the carrier layer preferably comprises a 10 material which is biodégradable and/or made of renewable resources. Materials particularly suited as carrier layer for the barrier material layer to be used according to the invention are polylactic acid materials and cellophane. Polylactic acid materials are already being used for foil materials and packaging, for example as mulch film or for shopping bags. Other known fields of application of polylactic acids are disposable cutlery, straws and boxes with screw caps. Another 15 preferred material for the barrier layer is cellophane, a material also known under the désignation regenerated cellulose.
The preferred materials for the carrier layers of the barrier material layer of the présent invention already comprise certain barrier fitness, in particular towards liquids. These barrier carrier layers typically hâve a thickness of about 10 to 100 pm, preferably 12 to 50 pm, in particular preferred 20 15 to 40 pm, such as for example 25 pm.
However, to ensure the desired barrier property, it is necessary to provide the above defined carrier layer with a layer of barrier material. According to the invention, in particular vapordeposited barrier materials are here employed because in this way, a desired barrier effect, in particular towards oxygen, CO2l but also towards water vapor can be ensured with a very thin 25 layer (only a few angstrom). Barrier materials suited according to the invention are vapordeposited layers of (semi)métal oxides or (semi)metals, for example aluminum, SiO2( AI2O3, or other oxides and mixed oxides or mixtures. Here, the oxide materials are preferred as one can 1 thus altogether do without a métal layer.
The vapor-deposited layer of the barrier material is preferably applied on one side of the carrier 30 layer, however, it is also possible to apply this vapor-deposited barrier on both sides of the carrier layer. Preferably, the barrier, as it is defined above, comprising the carrier layer and the vapor-deposited layer of barrier material, is disposed in the composite system according to the invention such that the vapor-deposited barrier is présent on the side of the carrier layer facing away from the paper layer. However, other embodiments are also possible. Often an arrangement is selected based on deliberations with respect to the manufacturing process (that means the sequence of the application/introduction of the individual layers of the composite 5 system) which ensures that the barrier material is covered by a further layer as quickly as possible to protect this relatively sensitive layer from damages in the further manufacturing process.
According to the invention, it is preferred to apply the above defined barrier material layer onto the paper layer described in the beginning. Here, common layers improving adhesion can be 10 applied between them and typically hâve a thickness of less than 20 pm, in particular preferred is a thickness of 1 to 10 pm, in particular preferred 2 to 5 pm. Suited materials and types of application for such layers are well-known to the person skilled in the art, and suited examples are adhesive layers (extrusion glue, lamination adhesive, etc.). Here it is again preferred for the materials for such adhesive layers to be biodégradable and/or based on renewable resources.
The preferred materials for the carrier layer mentioned above, such as lactic acid materials and cellophane, furthermore permit, due to their smooth surface obtained in film manufacture, the vapor-deposition of very thin layers of barrier material as no major compensation for a rough surface of the carrier layer must be created here. At the same time, the above described barrier materials adhéré well to the carrier layer, so that a secure fabrication of the barrier layer 20 comprising the carrier layer and the vapor-deposited layer of barrier materials is ensured.
Apart from its barrier effect, this barrier layer also contributes to mechanical strength, but also to UV-protection. By the use of fillers and additives, these properties can be further modified and optimized, wherein common materials known to the person skilled in the art are employed, for example, as UV-absorbers or fillers to increase stiffness.
Another option of a barrier layer is a correspondîngly designed sealing layer which will be described below.
Sealing layer:
The composite system in accordance with the présent invention furthermore comprises a sealing layer which is applied onto one side of the above described barrier material layer. This sealing 30 layer is disposed such that it is the innermost layer among the essential layers of the composite system, i.e. the sealing layer is typically directly the inner layer of a finished food packaging. The sealing layer in accordance with the présent invention is also preferably manufactured from biodégradable or preferably even compostable materials and/or from materials based on renewable resources.
In particular polymer materials on the basis of polyesters, for example the polylactic acid 5 materials already described above, but also PBAT (polybutylen-adipate-terephthalate) and other, similar materials as well as mixtures of them are preferred. For example, a material commercially available from BASF under the désignation Ecoflex® is suited.
The sealing layer preferably has a thickness of about 10 to 200 pm, preferably 20 to 150 pm, in particular preferred 100 to 50 pm, such as for example 90, 75 or 60 pm.
The sealing layer can also be again provided with additives and fillers, as is described above for the other layers. Again, the properties of the composite system can be modified and optimized by them.
To securely apply this sealing layer onto the above described barrier layer, an adhesionimproving layer can be used again which is designed as already described above. To further 15 improve adhesion, additional techniques for the improvement of the adhesion of the individual layers can be employed, such as surface treatments by flaming methods or corona discharge, etc.
Furthermore, the above described sealing layer can also be coated, preferably vapor-deposited, with barrier materials. For this, the materials already described above can be employed; 20 particularly preferred are here again oxidic coatings, in particular SiOx, AIOX, mixtures of them and other oxides. Such barriers can also be again applied onto one or both surfaces of the sealing layer, the application onto one surface often being sufficient in particular also for cost reasons. If the sealing layer described herein comprises such a barrier layer, it is in some embodiments of the présent invention possible to dispense with the above described barrier 25 material layer as in this embodiment, the sealing layer then assumes the barrier effect, so that a layer structure with a paper layer and a sealing layer provided on it is possible, while sufficient barrier properties and mechanical properties of the total composite system are still achieved. By the use of the above described polyester materials, it is again ensured that the composite Systems of the présent invention essentially consist of materials which are at least 30 biodégradable or preferably compostable, respectively.
Another option of a barrier layer is a coat of lacquer which will be described below
Coat of lacquer
Another option for a barrier layer is a coat of lacquer which can be applied, for example, onto the paper layer. Suited examples of coats of lacquer are lacquers based on cellulose nitrate. These can serve, for example, as moisture barrier. Suited ways of application, layer thicknesses and materials for such layers are known to the person skilled in the art.
Adhesive layers
If required, adhesive layers can be provided between the here described layers for improving adhesion, wherein common adhesive materials known to the person skilled in the art can be employed, for example the extrusion glue and lamination adhesive already discussed above.
Suited materials are known to the person skilled in the art and at this point, too, it should be mentioned again that it is preferred for the materials for such adhesive layers to be biodégradable and/or based on renewable resources. Such adhesive layers are preferably employed between the paper layer and the barrier layer, in particular between a paper layer and a carrier layer which is part of an above defined barrier material layer. Furthermore, adhesive 15 layers are preferably provided between the sealing layer and the barrier layer, where it is again a preferred embodiment to provide such an adhesive layer between the sealing layer and the carrier layer of the barrier material layer. However, it is also an option to provide an adhesive layer between the paper layer and the barrier layer or the sealing layer and the barrier layer, such that this adhesive layer is provided in contact with the layer of barrier material. Such 20 adhesive layers improve the adhesion of the individual layers of the composite system, but they can additionally also contribute to barrier properties, in particular against oxygen perméation.
Shellac laver
Another option is the provision of additional shellac layers which essentially consist of shellac. Such shellac layers can be provided at any position in the composite system, and these layers 25 preferably hâve a comparably small thickness which is typically less than 20 pm, preferably about 1 to 10 pm, particularly preferred 2 to 5 pm.
Such shellac layers can be provided between the paper layer and the barrier layer, between the barrier layer and the sealing layer, or else between the carrier layer and the layer of barrier material. One or several layers of shellac can be provided to thus further improve the barrier 30 effect of the composite material according to the invention.
The options for barrier layers described herein can be employed individually, but also in combination in the composite system according to the invention, depending on the desired application. The number of these layers can be arbitrarily selected, and for example one, two or three barrier layers which can be the same or different can be présent.
The présent invention altogether provides an improved composite system suited for the manufacture of food packaging, in particular stand-up pouches, wherein one can dispense with métal foils without any disadvantageous effect on the barrier properties and mechanical properties, and essentially polymer materials based on renewable resources and/or biodégradable polymer materials are employed.
Apart from the above described essential layers and the optional layers improving adhesion, the composite system of the présent invention can comprise additional layers, for example a lacquer on the outer surface of the paper layer or another sealing layer on the inner and/or outer surface of the composite system.
So, exemplary composite Systems can be structured as follows (from the outside to the inside, in relation to a food packaging):
lacquer/paper layer/adhesive/barrier material layer/adhesive/sealing layer lacquer/paper layer/adhesive/barrier material layer/adhesive/sealing layer with barrier material lacquer/paper layer/adhesive/sealing layer with barrier material paper layer/adhesive/barrier material layer/adhesive/sealing layer lacquer/paper layer/barrier material layer/sealing layer
However, the présent invention is not restricted to these exemplary embodiments.
The composite system in accordance with the présent invention is in particular suited for the manufacture of food packaging, in particular for liquid or semiliquid food, preferably beverages, in particular fruit juices and other fruit containing beverages. The composite system according to the invention in particular permits to manufacture a stand-up pouch by conventional manufacturing processes, so that food packaging can be provided which are essentially based
Claims (9)
1. Composite system suited for the manufacture of food packaging, comprising a paper layer
5 and a barrier layer, characterized in that the laminate does not comprise any métal foil, and furthermore characterized in that the barrier layer comprises a biodégradable material.
2. Composite system according to claim 1, characterized in that a sealing layer is furthermore présent.
3. Composite system according to claim 1 or 2, characterized in that the barrier layer is applied
10 onto the paper layer and the sealing layer is applied onto the opposite surface of the barrier layer.
4. Composite system according to one of claims 1 to 3, characterized in that the paper layer consists of transparent paper.
5. Composite system according to one of the preceding claims, characterized in that the barrier
15 layer comprises a carrier layer and a vapor-deposited barrier material layer, wherein the carrier layer preferably consists of polylactic acid materials or cellophane, and the barrier material layer consists of vapor-deposited (semi)metal oxides.
6. Composite System according to one of the preceding claims, characterized in that the paper layer comprises a thickness of 10 to 100 pm.
20 7. Composite System according to one of the preceding claims, characterized in that the sealing layer comprises a vapor-deposited barrier material layer.
Θ. Composite system according to one of the preceding claims, characterized in that between the paper layer and the barrier layer and/or between the barrier layer and the sealing layer, a layer improving adhesion is provided.
25 9. Composite system according to one of the preceding claims, characterized in that one, two or three barrier layers are présent.
Z
10. Composite system according to one of the preceding daims, characterized in that compostable materiais are contained, preferably that the composite system is compostable.
11. Food packaging, comprising the laminate according to one of daims 1 to 8.
12. Food packaging according to claim 9, characterized in that it is a stand-up pouch.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP11002043.5 | 2011-03-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| OA16555A true OA16555A (en) | 2015-10-22 |
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