| 摘要 |
<p>The film (7) has a weakening zone (9) transversed between labels (8) for supporting tearing of the film. The weakening zone is equipped with non-contiguous precut patterns (11) including an symmetry axis in a lenghthwise direction corresponding to a weakening zone direction (10), The patterns including a convex closed form and has a length (12) larger than patterns width (13). Patterns separating distance (14) is lower than the patterns length, where acute angles and right angles of the patterns are always on the symmetry axis of the patterns in lengthwise direction. The patterns are in shape of an oval, an elongated hexagon (17), a rhombus and a biconvex lens.</p> |
