| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a packaging bag with a fastener tape, the bag being designed so that unsealing performance is not affected by sealing conditions and a thin part is easily cut open with force required to open the fastener tape. <P>SOLUTION: The band-like base 331 of the female member of a fastener tape 3 attached to the internal face of the bag is formed wider toward the contents side of the bag than the band-like base 321 of a male member 32 disposed opposite to it. Thereby the band-like base 331 forms a seal base 36. On the seal base 36, one linear part 35 parallel to the lengthwise direction of an engaging part 35 is formed in the shape of a wedge. A sealing section 4 is formed so that the seal base 36 forms a seal together with the opposite internal face of the bag and comes into contact with the contents side end edge 35A of the linear part 35. The shape of the sealing section 4 is continuous waves such that a triangular portion 4B having a top (opening side end 4A) is integrated with a linear part 4C. <P>COPYRIGHT: (C)2008,JPO&INPIT |
