FIELD: packaging and storage.
SUBSTANCE: present group of inventions relates to a laminated packaging material for liquid food products and comprising a base layer and a barrier layer portion, and a structure with polymer layers to ensure optimum combination of integrity of package, as well as to ability of package for opening. Invention also relates to a method of producing a laminated packaging material and to a packaging container for packaging liquid food products, comprising a laminated packaging material.
EFFECT: group of inventions provides improved state of the art, solving at least some of the above problems and obtaining improved packing material; obtaining improved packing laminated material of the described type on the basis of cardboard, intended for packing of liquid or semi-liquid food products, which makes it possible to produce filled packages having improved package integrity and impermeability for gas, such as oxygen, with preserved ability to open; creation of improved packing laminated material on the basis of cardboard, which makes it possible to produce filled packages having improved ability to open at preserved integrity of packing and impermeability for gas, such as oxygen; creation of improved packing laminated material based on cardboard, which enables to produce filled packages having improved package integrity and improved impermeability for gas, such as oxygen, as well as improved characteristics providing the possibility of opening; obtaining laminated packaging material with high production efficiency, id est material that can be made with high speed of lamination.
16 cl, 9 dwg, 3 tbl
