Plastic container with a barrier foil
View Patent ↗The invention relates to a method for producing a plastic container having a container wall provided with a barrier foil, comprising the following steps: forming a foil body from a barrier foil, the shape of which corresponds to at least part of the container wall of the plastic container to be produced, arranging the foil body in an injection mold, applying a first plastic layer onto a first side of the foil body that corresponds to an inner side or outer side of the plastic container, and applying a second plastic layer onto a second side of the foil body that corresponds to an outside or inside of the plastic container, and to a plastic container comprising a container wall having a barrier foil, wherein the barrier foil is arranged centrally between an inner side and an outer side of the plastic layer.
1. A plastic container, comprising a container body having a container wall, said container wall including
a foil body made of a barrier foil in a form of a thin-walled structure with desired barrier characteristic,
a first plastic layer injection-molded to an inner side of the barrier foil,
a second plastic layer injection-molded to an outer side of the barrier foil, and
a cover for connection to the container body, said cover has a barrier foil which is coated or molded around on both sides with plastic, said cover having a flange portion which corresponds to a cover flange of the container body, said flange portion being molded around with plastic only on an outer side thereof.
2. The plastic container of claim 1 , wherein the barrier foil of the cover is sealed in a region of the cover flange and the flange portion directly adjacent to the barrier foil of the container body to seal an interior of the container in a diffusion-tight manner against the surroundings.
3. The plastic container of claim 1 , wherein at least one of the first and second plastic layers has a thickness between 0.1 and 2 mm.
4. The plastic container of claim 1 , wherein the foil body has portions in overlapping relation in border regions.
5. The plastic container of claim 1 , wherein the barrier foil has at least one barrier layer with a thickness between 1 and 15 μ.
6. The plastic container of claim 5 , wherein the thickness ranges between 5 and 10 μ.
7. The plastic container of claim 5 , wherein the at least one barrier layer is made from aluminum.
8. The plastic container of claim 5 , wherein the barrier foil has on at least one side a plastic layer or adhesive layer with a thickness between 1 and 15 μ.
9. The plastic container of claim 8 , wherein the thickness ranges between 5 and 10 μ.
10. A plastic container comprising a container body having a container wall, said container wall including
a foil body made of a barrier foil in a form of a thin-walled structure with desired barrier characteristic,
a first plastic layer injection-molded to an inner side of the barrier foil,
a second plastic layer injection-molded to an outer side of the barrier foil, and
a cover flange extending from the container wall, with the barrier foil being laid bare on an inner side at least in some areas thereof.