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AssigneeTetra Laval Holdings & Finance S.A.
InventorStefano FANTINI
Estimating the term…
The present disclosure refers to a method of manufacturing a strip for sealing a laminated packaging material for liquid food products, wherein a pre-manufactured strip comprising a plurality of layers made of polymer material is provided, the layers comprising at least an inner surface layer, an outer surface layer and center layer. In the method, at least one of the inner and outer surface layers is exposed to a heat treatment effecting that a degree of transparency of the manufactured strip is increased with regard to the degree of transparency of the pre-manufactured strip. The present disclosure further refers to a strip manufactured in the method and to a laminated packaging material and a respective packaging container comprising the strip. The present disclosure also refers to a respective device to execute the method.
Method of manufacturing a strip for sealing a laminated packaging material for liquid food products, wherein a pre-manufactured strip comprising a plurality of layers made of polymer material is provided, said layers comprising at least an inner surface layer, an outer surface layer and center layer, the method comprising exposing at least one of said inner and outer surface layers to a heat treatment effecting to increase a degree of transparency of the pre-manufactured strip and produce a manufactured strip having a degree of transparency that is increased with regard to the degree of transparency of the pre-manufactured strip.
Dependencies are inferred from the claim text.