PLASTIC CONTAINER WITH MULTILAYER SEALING FILM Russian patent published in 2005 - IPC

FIELD: sealed plastic package for personal use.

SUBSTANCE: proposed package has plastic container forming zone of storage and having sealing surface around entrance into said zone, and metal foil-free multiplayer film hermetically connected to sealing surface and containing plastic layers. At least one of plastic layers is structural plastic layer with parameters providing complete preservation of partly uncovered position of film separated from sealing surface in one piece. Invention relates also to material for cover, containing plastic multiplayer structural film for manufacture of sealed packages for individual use articles placed in plastic container forming zone of storage and provided with sealing surface around entrance of said zone. Plastic multiplayer structural film has at least one of plastic layers with parameters providing complete preservation of partly uncovered position of film and consisting, in fact, of upper layers of polyethylene terephthalate, second layer of low density polyethylene and main layer of high density polyethylene. Material for cover made for removing from sealing surface in one piece provides preservation of partly uncovered position of film. Proposed device provides getting of film having structural integrity which does not separate into layers and does not break when being removed in one piece and it does not decompose in presence of water or domestic detergents, etc. Film protects articles inside from negative substances and it features preset parameters providing complete preservation of partly uncovered position of film facilitating taking of article. Its cost is lower than other films using metal foil, it does not interact with electronic control systems and it permits printing of its surface.

EFFECT: enlarged operating capabilities, reduced cost.

55 cl, 7 dwg