| 摘要 |
PROBLEM TO BE SOLVED: To provide a packaging bag that has stable opening properties and a neat cut area and allows even a left-handed person to have the same usability, and is superior in re-opening property.SOLUTION: There is provided a packaging bag which is formed by sealing a peripheral edge with sealant layers of a top laminate and a reverse laminate opposed to each other, has re-sealing means at an opening part, and is provided with an easy-to-open means between the re-sealing means and a top seal part. The easy-to-open means consists of an easy-to-open processing part provided at outer edges of right and left side seal parts; a surface half-cut line "a" provided to the top laminate and having an upward convex shape; a top half-cut line "b" having a downward convex shape; a linear reverse half-cut line provided to the reverse laminate, the top half-cut line "a" and top half-cut line "b" being provided symmetrically about the reverse half-cut line along a vertical direction and also in contact with each other, and those two top half-cut lines each having a start point and an end point at one point on a side seal part.SELECTED DRAWING: Figure 1 |
