| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a self-standing packaging bag hard to slip and easy to grip when pouring out a content.SOLUTION: A self-standing packaging bag 1 has a pouring port on an upper corner part and is made to be self-standable by sealing both sides of a body part sheet disposed facing each other to form a side-sealing part, by folding a bottom sheet inward and sealing to the body part sheet to form a bottom seal part and by spreading the bottom sheet. A void comprising a non-sealing part in a longitudinal direction is formed on the side-sealing part 5 and thereby, the packaging bag is provided with an air inclusion part 7 comprising forcibly putting air in the void and has a plurality of irregularities formed on the surface of the air inclusion part 7.</p> |
