| 摘要 |
PROBLEM TO BE SOLVED: To provide a self-standing bag excellent in design and display effect. SOLUTION: In this self-standing bag 1 including a body 11 made of a tubular film material and a bottom 12 made of a bag-shaped film material whose bottom end is open, wherein at least the bottom end periphery of the body 11 and the bottom end periphery of the bottom 12 are sealed wholly, the bottom end of the bottom 12 is expanded to form a polygonal, i.e. at least quadrangular bottom face 120, and the body 11 is formed with a plurality of outward folding lines 15 in the vertical direction of the body 11 matching the vertexes of the polygonal bottom face 120. COPYRIGHT: (C)2011,JPO&INPIT
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