| 摘要 |
<P>PROBLEM TO BE SOLVED: To give directionality of tearing by easy opening means of a packaging material. <P>SOLUTION: In the packaging material 1 including a laminated body having a plurality of laminated films 2, 3, a tearing guide line M constituted of a groove having a width of 1-10 μm is formed on the surface of the packaging material. <P>COPYRIGHT: (C)2012,JPO&INPIT |
