| 摘要 |
A closure (100,200) for a container (210), the closure (100,200) comprising a wadless membrane (20,220) and a shell (30) formed from a first material, wherein the membrane (20,220) is adapted to be heat sealed to a rim (217) of a container to provide a gas-tight barrier, wherein the shell (30) has a downwardly extending resilient sealing element (40,240) formed from a second material different from the first material for providing an even sealing pressure to the membrane (20,220) during heat sealing and for providing a gastight re-seal once the membrane (20,220) has been broken or removed. The second material id a thermoplastic elastomer, and is bi-injection moulded with the first material. The membrane may be a metal foil membrane, and a method of sealing a container is also disclosed. |
