| 摘要 |
<p>A closure for a container for a sterilisable object comprises a pleated outer shell, formed of a metal foil (4) which has been rendered gas permeable by an embossing operation, which perforates it, and a liner (5) formed of barrier paper, which is gas permeable, but impermeable to passage by bacteria. The perforated metal foil (4) and barrier paper (5) in strip form are superimposed and fed to a conventional machine for forming pleated foil capsules.</p> |
