| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a zipper tape which can be easily opened and to provide a packaging bag with the zipper tape. <P>SOLUTION: A rib 47 is provided at the cut section 44 of the zipper tape, the rib having approximately the same thickness dimension (D) as thickness dimensions (D2) of first and second thick-walled sections 45A, 45B, and thereby, when the zipper tape is bonded to a bag body, the first and second thick-walled sections 45A, 45B, and the rib 47 can be bonded to an inner surface 211A. Accordingly, when a packaging bag 1 is torn and unsealed, stress is converged on a thin part 46 which has small tensile strength, and at the thin part 46, cutting can be performed, thus requiring only one portion in cut potions, and generating no waste. When the bag 1 is torn, the rib 47 determines the position of a cut line, so that the cut line is not meandered, linear cutting performance is obtained, and the tape can easily be torn. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
