| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a storage bag capable of easily tearing off a sealing part even though affected by the orientation of molecules of a biaxially stretched film because of a composite film when a sealing part of the storage bag is torn off.SOLUTION: A storage bag 40 is mainly made of a composite film 2 including a biaxially stretched film as a base material film, and includes a lateral sealing part 43 which is heat sealed on a periphery of the storage bag 40. A plurality of crack parts 10 penetrating the lateral sealing part 43 are formed on the lateral sealing part 43 which is formed on at least one of the sides of the storage bag 40. The crack parts 10 are configured to be aligned in a honeycomb form from the outer end edge to the inner end edge of the lateral sealing part 43 in a prescribed region of the lateral sealing part 43.</p> |
