| 摘要 |
According to the present invention, a packaging bag which is provided with the bag bottom having a planar spread and which has excellent self-standability is provided, by making it easy to form a planar spread at the bag bottom by providing a gusset at a bag body part, preventing a vertical seal, provided at the center of the bag front face of the bag body part or at the center of the bag back face of the bag body part, from reaching the bag bottom. A bag bottom sealed side portion 19 is provided which is obtained by heat sealing a sheet on one bag side surface 5 side and a sheet on the bag bottom part 14 side with each other, on the one bag side surface 5 side of a bag bottom part 14. The bag bottom sealed side portion 19 is wide in the direction of separation between a bag front face 4 and a bag back face 6. The one bag side surface 5 stands with the bag bottom sealed side portion 19 side serving as the bottom side. A spout stopper 3 is provided at the upper side of the one bag side surface 5. |
