| 摘要 |
PROBLEM TO BE SOLVED: To provide a self-supporting bag into which commodities can be inserted by using both hands and also commodities which can not be toppled down sideways can be easily inserted. SOLUTION: Both sides of a cylindrical body are root folded inward to form gusset sections 2, and oblique sealing sections 3 passing through the lower ends of respective gusset sections are formed for the purpose of connecting a front wall 1a with a rear wall 1b of a cylindrical body facing respective gusset sections 2, and bottom sealing sections 4 are formed on the lower ends of the front wall 1a and the rear wall 1b of the bag 1, arid the oblique sealing sections 3 of the gusset sections 2 are spread into the plane shape and reinforcing sections are formed between the gusset sections 2 and both of the front wall 1a and the rear wall 1b to form a bottom wall section 8. |
