| 摘要 |
<p>The invention relates to a closure device for a cylindrical packing (1) of flexible material, said packing being intended for products in paste form. The closure device according to the invention comprises a closure means (2) with a bottom (3) and an essentially cylindrical wall (4), which is joined to the bottom (3) and extends out from the same. It is provided on its interior with at least two radially inwardly directed ridges (5), which extend helically essentially from the bottom (3) to the free edge of the wall (4).</p> |
