| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a simple manufacturing method of a storage bag which is formed of a sheet-like material of synthetic resin, etc., folded compactly when not in use and maintains its shape, portable and recyclable. SOLUTION: A fin-shaped piece 1 is arranged on an end portion of a storage bag body of a foldable storage bag formed of a material such as a synthetic resin sheet, a paper and a cloth, and a means 2 to repeat attachment/detachment of ends opposite to each other of a folded storage bag body 3, after the storage bag is folded, is provided. The fin-shaped piece 1 is formed of a punched excess portion of a continuous cylindrical sheet on a roll in a manufacturing process of the storage bag at a low cost without wasting the sheet material, and a conventional manufacturing facility need not be changed.</p> |
