COVER WITH PACKAGE INTEGRITY INDICATOR Russian patent published in 2012 - IPC B65B5/00 B65D75/58 

FIELD: transport, package.

SUBSTANCE: cover comprises, at least, one two-layer material made up of first and second film layers glued together to form first panel for holes to be provided for access via first layer on detachment from first layer along first tear-off line and second tear-off line in first layer terminating on first tear-off line to make cover first opening indication on detaching second panel from first panel along first tear-off line. Note here that second layer makes closing panel and covers completely first and second panels of first layer to comprises layer of detachable adhesive for gluing closing panel to first layer while closing panel may detach from first layer and second panel for opening aforesaid access holes. Second panel allows visual indication of cover first opening after first detachment of closing panel from first layer. Container cover comp[rises, at least, two-layer material consisting of inner layer glued to outer layer to form container top part. Outer layer comprises closing panel to cover entirely inner layer first and second panels. Inner layer first panel is pulled back together with closing panel to open access hole. Note here that said second panel fits first panel before opening access hole. Cover comprises also separable adhesive arranged along the closing panel edges to glue closing panel to inner layer and second panel. Closing panel may be detached from inner layer and second panel by pulling it back in opening direction and closing its top to seal said hole. After closing, second panel is separated from closing panel to allow visual indication of cover opening. Container for food product comprises tray and top part above said tray for access to food product. Said top part is made from, at least, two-layer material consisting of inner layer glued to outer layer. Inner layer comprises first and second panels, the latter fitting the first panel before opening, while outer layer comprises closing panel that opens completely first and second panels. Note here that first and closing panels are permanently interconnected to form access hole. Inner layer on first panel edges, or closing panel, or both, have adhesive applied thereon to glue closing panel to edges. Note here that closing panel may be detached from edges by pulling it in opening direction and reclose at top part to seal access hole in moving closing back to top part. After closing, second panel is separated from outer layer to allow visual indication of package integrity.

EFFECT: better integrity or opened state indication.

22 cl, 10 dwg