| 摘要 |
PROBLEM TO BE SOLVED: To provide a packaging bag having stable openability, producing a beautiful cut line and excellent re-openability.SOLUTION: A packaging bag is formed by opposing mutually the sealant layers of a front surface laminate and a back surface laminate and sealing the circumference of the resultant body, has re-sealing means in an opening and is provided with easily opening means between the re-sealing means and a top seal part. The easily opening means comprises easy opening processed parts arranged in the outside edges of right- and left-side seal parts, a front surface half-cut line 'a' having an upwardly convex shape, a linear front surface half-cut line b and a back surface half-cut line. The front surface half-cut lines 'a' and b respectively have a starting point above the left side seal part and an end point above the right side seal part, and the back surface half-cut line has starting and end points in the back surface laminate corresponding to the starting and end points of the front surface half-cut lines 'a' and b, but is provided on a different position from both of the front surface half-cut lines 'a' and b. |
