| 摘要 |
The cap made from an injection moulded synthetic material, has a rigid top (30) which is linked to a lower tamper-proof skirt (31) in the form of an upper ring (10) and a lower truncated conical portion (11) which tapers towards the ring. The ring is connected to the rigid top by a tear-off zone (30), and the height of the skirt is greater than that of the top. The rigid top can have an inner thread and a seal made from a circle of a deformable synthetic material, covered on its exposed surface with a layer of metallised or plain plastics, such as polyester. The skirt has one or more rupture lines (33) and can have a tongue (33) which is pulled to remove the skirt. The cap is made pref. from food-grade polyethylene, tinted in the mass.
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