Seal disc having a tab for closing a container having a closure part of a stopper or cap, and a manufacturing method

摘要

The joint has a support (2) at a bottom of a cork or a cap and associated to a cover plate (3) by a temporary adhesive film (7), where the cover plate is sealed on a lip of a container. The plate has an extension constituting a rip tab (6), on all or part of thickness of the plate. The total surface of the tab is folded on a surface of the cover plate in contact with corresponding surface of the support. The plate comprises an aluminum sheet (4) associated to a thermosealable plastic film (5). The plate has a reinforcement film i.e. polyester film, on total supper surface including the tab.