| 摘要 |
<p>PURPOSE: To prevent the existence of a primer on an opening after a strip is removed by providing a first arrangement layer of the strip with high sealing strength to a center layer, making a second arrangement layer peelable relative to the first arrangement layer, and providing an inner face of a package with high sealing strength. CONSTITUTION: A strip has the first and second layers at both sides of a center layer 21 of polyethylene terephthalate film, the first arrangement layer has a primer layer 22 and a polyethylene layer 23, and the second arrangement layer comprises a layer 24 and a polyethylene layer 25. A material of the layer 24 is polypropylene so that the X layer 24 and the polyethylene layers 25, 23 are not sealed one another when the sealing part 17 is heat sealed. When the strip 18 is removed from the lateral sealing part 17, the layer 25 is cut through the tearing faces 29, 30 to be torn into a thin layer at a boundary face 31 between the outer layer 25 and the layer 24 of the strip 18, and separated from the part 25a of the polyethylene outer layer inside of the wrapping material. The polypropylene layer is partially exposed, but the primary layer is not exposed.</p> |
