METHOD OF PRODUCING MULTILAYER COMPOSITE MATERIAL FOR PACKAGING LIQUID OR FLUID FOOD PRODUCTS, MATERIAL AND CONTAINER MADE THEREFROM Russian patent published in 2022 - IPC B65D85/72 B32B29/00 

FIELD: packing and storage.

SUBSTANCE: invention relates to production of multilayer composite materials without use of foil and packaging for food products of long-term storage, in particular, intended for packing liquid or fluid food products, such as milk, milk and cultured milk products, juices, nectars, soups, baby food products, puree-like products, cereals. Method envisages production of a multilayer material by extrusion-laminator technology on an extrusion-laminator installation, wherein the material includes four successively arranged layers of polyethylene, paper or cardboard, polyethylene and a metallised polyethylene film. Finished containers are formed from the obtained material.

EFFECT: using the proposed new technology, it is possible not only to exclude expensive foil and the inner layer of polyethylene, which is sensitive to oxidation, from production, but also to simplify the technology and reduce units of equipment.

14 cl, 4 dwg