| 摘要 |
A stronger breaking line 36 for e.g. separating a single wipe 33 from a roll of wipes 34 or removing a portion of a filled bag (figs 3-4) for accessing the contents, comprises a wiggled line of a plurality of perforations. The line of weakness follows a wiggled or sinusoidal path, the pattern cyclically repeating. The amplitude 42 or cycle length (wavelength) 44 may be adjusted to adjust the strength of the breaking line. Where provided for opening a sealed bag the breaking line extends beyond the seams of the bag (64, figure 3) such that a corner or top portion of the bag can be completely removed. A zipper or the like may also be provided so that the bag can be re-sealed. |
