FIELD: package and storage.
SUBSTANCE: method of producing a container with an internal volume, comprising the steps of: a. providing a flat composite containing i. bearing layer; ii. barrier layer of plastic from polyamide, or polyethylene vinyl alcohol, or from mixture thereof, connected to bearing layer; iii. at least two layers of thermoplastic plastic KSa and KSw on the side of the plastic barrier layer facing away from the bearing layer. At least two layers of thermoplastic plastic are made from polyethylene, or polypropylene, or from a mixture of at least two of said polymers, and at least one of said at least two plastics layers is a mixture of at least two plastics, which contains a metallocene-derived polyolefin, as one of at least two components of mixture. Then step b is performed to fold flat composite to form fold with two surfaces of fold, adjacent to each other. Step c. comprises connecting at least a separate portion of fold surfaces to form a base or top of the container. At least one of said layers of thermoplastic plastic KSa and KSw at stage b is heated above melting point.
EFFECT: produced container is suitable for storage of food product for a long time and does not require thorough disinfection.
23 cl, 11 dwg
Authors
Dates
2020-06-09—Published
2011-01-26—Filed