PRODUCTION METHOD FOR PACKAGING CONTAINER AND PACKAGING CONTAINER

摘要

The present invention addresses the problem of providing a packaging container with a novel triangular cross section and a production method for said container. [Solution] A packaging container obtained by: forming a tube by vertically sealing a web-shaped packaging material; filling the tube-shaped packaging material; horizontally sealing the tube-shaped packaging material in the transverse direction thereof; forming pillow-shaped packaging bodies; cutting off individual pillow-shaped packaging bodies; and forming the same into a final shape by folding along creases to form a top wall, side walls, and a bottom wall and attaching formed fins and flaps to said walls. The top wall and bottom wall have a triangular shape; and the cross-section in the transverse direction of a packaging container main body formed by three ridgelines that connect the triangulation points of the top wall and the triangulation points of the bottom wall is a triangular prism shape.