| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a cover material which has a good piercing characteristic of straws, etc. and can prevent out-flow of its contents caused by unexpected breakage of the cover material. <P>SOLUTION: The cover material through which a straw or the like can be pierced has a base material layer (1), an easily-penetratable polyester-based film layer (2) provided on one side of the base material layer, and a sealant layer (3) which is provided on the other side of the base material layer and has a thickness of 15 to 60 μm. <P>COPYRIGHT: (C)2011,JPO&INPIT |
