| 摘要 |
<p>PURPOSE:To make it easy to find a position of a notch for introducing tearing formed on a seal. CONSTITUTION:A packing bag comprises a packing film 1 heat-sealed by a vertical seal 3 and a lateral seal 2, wherein a tearing introducing notch 4 is provided on at least one of the seals. At least a pair of protrusions 6 positioned across the notch 4 and protruding to either a surface or a rear face are provided on the seal 3 formed with the notch 4.</p> |
