公开(公告)号：US11851257B2

公开(公告)日：2023-12-26

申请号：US17905678

申请日：2021-03-09

申请人： GIUSEPPE CITTERIO SALUMIFICIO S.P.A.

发明人： Umberto Della Porta

IPC分类号： B65D81/28 ,  B65D77/00 ,  B65B25/06 ,  B65B31/04 ,  B65B41/12 ,  B65D75/30 ,  B65D81/20

CPC分类号： B65D77/003 ,  B65B25/067 ,  B65B31/048 ,  B65B41/12 ,  B65D75/30 ,  B65D81/203 ,  B65D81/2092

摘要： A food package having a heat-sealed cover composed of a lower plastic film and an upper plastic film which is distinct and separate from the lower plastic film is disclosed. The upper and lower films are collapsible, i.e., they can be creased and crumpled into a ball without effort or folded as a tissue paper. The lower film and upper film are heat-sealed to each other at respective perimeter edges to define a closed, watertight internal housing filled with a modified atmosphere. A tray, configured to house the food product, is inserted in the closed internal housing but is not fixed to the upper or lower film. The food packaging described herein allows a substantial reduction of plastic compared to those currently on the market, while guaranteeing its mechanical rigidity, and the long-term quality of the product. A method for producing the packaging is also disclosed.