MULTILAYER PACKING MATERIAL, METHOD OF ITS MANUFACTURE, PACKING CONTAINER MADE OF PACKING MATERIAL Russian patent published in 2007 - IPC B65D65/40 

FIELD: food industry; packing.

SUBSTANCE: invention relates to multilayer packing material designed for packing and transportation of liquid food products. Invention is aimed at additional optimization of barrier properties of proposed material to prevent penetration of gases and provide resistance of layer to liquid, said layer being formed from liquefied composition containing dispersion or solution of polymer, starch or starch derivative and arranged from one side of idle layer. Barrier layer includes also particles of amorphous SiO₂. According to invention, said particles of amorphous SiO₂ are preset in said barrier layer in form of particles of size good for forming colloid solution in amount exceeding 40 mass %, but not less than 80 mass %. Invention relates also to packing container made from said packing material and to method of manufacture of packing material.

EFFECT: improved barrier properties of packing material.

25 cl, 5 ex, 5 tbl, 2 dwg