| 摘要 |
One embodiment of a wrapping film comprises a polymer film having, on at least one surface thereof, at least one sealing area comprising at least one varnished area; and a plurality of individual unvarnished areas; wherein, within the sealing area, the area ratio of the unvarnished areas to the varnished area (PV:V) is ≦̸1; and wherein, within the sealing area, the largest individual unvarnished area is ≦̸30 mm2. Other embodiments are described. |
