| 摘要 |
PURPOSE: A vacuum packaging bag is provided to easily and certainly seal an opening of the vacuum packaging bag without an additional device. CONSTITUTION: A vacuum packaging bag(100) contacts an upper side(110) and a lower side(120). The vacuum packaging bag comprises an opening(130), a lower contact unit(140), and a side contact unit(150). An upper side and a lower side of the lower contact unit contact each other to be closed. The side contact unit contacts an opening and the lower contact unit. Both units of the upper side and both units of the lower side contact each other to close the side contact unit. The opening includes a shape maintaining member.
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