FIELD: chemistry.
SUBSTANCE: claimed invention relates to suitable for smoking and jerking single-layered or multi-layered sleeve food film, in particular to sausage casing for smoked and/or jerked sausage or meat products, and to method of its manufacturing. Said food film is manufactured from homogeneous melted polymer material on installation for (combined) extrusion of food film by formation with blowing by means of supply (jointly) of polymers to be extruded to nozzle of blow head and biaxial orientation in the process of triple blowing. Homogeneous polymer melt of polymers for film manufacturing represents mixture of polymers, consisting of: polyethylene terephthalate or mixture of different polyethylene terephthalates and polyvinyl alcohol, or polyethylene terephthalate or mixture of different polyethylene terephthalates and block-copolymer of polyether with amides, or polyethylene terephthalate or mixture of different polyethylene terephthalates, polyvinyl alcohol and block-copolymer of polyether with amides.
EFFECT: claimed food film provides such fey parameters as suitability for smoking, which is determined by permeability for oxygen and water vapour, as well as adsorption of oxygen and water vapour, colouring surface of filled product, rigidity and strength.
18 cl
