| 摘要 |
<p>An easy-open wrapper (100) includes a sheet (102) having a heat sealable, polymeric material surface and a foldable end flap (120), wherein the end flap (120) has a heat activated sealant (144, 144a, 144b) thereon for bonding to the polymeric material surface and holding the end flap folded. The sealant (144, 144a, 144b) has a tear strength or adhesive bond strength, or both, less than that of the polymeric material surface to unfold the end flap (120) by tearing or de-bonding the sealant (144, 144a, 144b) without tearing or de-bonding the polymeric material surface. An overlap seam (302) of the sheet 102, 104 is sealed by heat activation of the polymeric material surface. Another end flap (138) is held by heat activation of the polymeric material surface or by additional sealant (144, 144a, 144b).</p> |
