| 摘要 |
A self-opening style bag formed from a paper tube of rectangular configuration wherein portions of the side walls are folded inward to form a bottom and thereafter are surrounded by folded over portions of the front and rear walls to complete the bottom. Front and rear flaps are cut into the front and rear panels and adhesive is applied to inside surfaces of the front and rear walls in a C-shaped configuration around said flaps, folding the side walls and portions of the front and rear walls inwardly forms a seal across the width of the bottom along the front and rear walls and a seam is formed between the folded over portion of the side panels which completes a sealed integrity of the bottom of the bag.
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