| 摘要 |
The opening/closing device for a disposable flexible container comprises a base sheet (1) having a first layer (1a) with a lower surface covered by a first adhesive (3), a second layer (1b) attached on the first layer (1a) by a second adhesive (8a), and contour cuts (5) defining an opening/closing flap (2) connected to the rest of the base sheet (1) by a fold line (6) comprising aligned discontinuous cuts affecting both the first and second layers (1a, 1b) and the first and second adhesives (3, 8a). Optionally, the base sheet (1) includes a third layer (1c) attached on the second layer (1b) by a third adhesive (8b), and optionally the aligned discontinuous cuts of the fold line (6) also affect the third layer (1c). |
