BEVERAGE CAN LID AND METHOD OF MAKING

摘要

A lid (1) made of a thermoplastic material for covering an open upper end (42) of a container (40). The lid (1) comprising a lid body (10) with an opening (11) for dispensing and a pull cap (20) having a cap portion (21) to reclose the opening (11) and a pull tab portion (22) integrally formed with the cap portion (21). The opening (11) is covered by a gas-barrier film (23) sealed to a lower surface of the lid body (10). The cap portion (21) is sealed to the gas-barrier film (23) and a clearance (25) is provided between the opening (11) and the outer periphery (15) of the cap portion (21). A method of manufacturing the lid involves inserting the gas-barrier film into a mold cavity, injecting a thermoplastic resin into the cavity to form the lid body, while still warm the molding is removed. After removal, the molding can be thermally shaped along its periphery to form a flange (12) for mounting to a container.