| 摘要 |
The plastics foil (5) is shrink-fitted onto the container neck (1). The upper horizontal surface of the foil is transparent and the security capsule (8) is welded on the inside of this surface in the centre to extend over the entire opening area of the container. Between the plastics foil and security capsule is an air space (11) containing the substance which changes colour should the security capsule be broken. The neck opening of the container is preferably closed by a breathable cork (4) and the plastics foil can have one or more ventilation holes (9) inside the cover area of the capsule. USE - To guard against the contamination of wines, medicines, etc.
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