SELF-STANDING BAG AND ITS MANUFACTURING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a self-standing bag in which it shows a function acting as a self-standing packaging bag during its use because it has a superior self- standing characteristic though it has a flexible state, it satisfies its self-standing characteristic until the stored content diminishes even though the bag is provided with a closure part, it can be made round after its use and disposed in its small-volumetric state and further it has a superior fixing strength of the closure part. SOLUTION: There is provided a self-standing bag 1 having a closure part 3 at a bag main body 2 characterized in that both side end edges 2a, 2a and an upper end edge 2b of the bag main body 2 are connected by end edge connecting parts 4 made of thermoplastic resin covering outer surfaces of these end edges and the closure part 3 is integrally molded with the end edge connecting parts 4. COPYRIGHT: (C)2003,JPO