| 摘要 |
This tamper-evident heat-shrinkable skirt for a screwable obturator is of the type comprising a section of sleeve (2) made of heat-shrinkable material locally comprising longitudinal lines of micro-perforations (3) delimiting a tear-off strip (4). According to the invention, its longitudinal lines of micro-perforations (3) are associated with at least one transverse line (5) of perforations which, disposed between the two lines of micro-perforations (3) but not connected to them, is also disposed in the zone (2b) of the skirt at the level of the counter-ring of the neck in order to form, in the skirt and in the event of a fraudulent opening, a lower ring jamming under the counter-ring and resulting in its separation from the upper part. <IMAGE>
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