| 摘要 |
<p>A bag for deaeration, comprising a bag body having first and second sheets (11) and (12) with thermally fusible synthetic resin films (11a) and (12a) on the inside thereof and nonwoven cloth (15) formed with thermally fusible synthetic fibers in a permeable fiber structural body, wherein the first and second sheets (11) and (12) are closed by thermal fusing the lateral sides (a, a) and the lower side (b) thereof and the upper side thereof forms an opening part (13), the nonwoven cloth (15) is adhered or fused to the inner surface of the sheets (11) and (12), an aeration is performed from the opening part (13) in such a state that food and cloths are stored in a space part (16) between the nonwoven cloths (15) and a heat seal is performed in a width shown by dashed lines (c) and (c), at the time of deaeration, the air inside the bag body is sucked from the opening part in the direction orthogonal to the thickness direction of the nonwoven cloth (15) inside the nonwoven cloth (15), and the opening part (13) is sealed since the fiber structural body of the nonwoven cloth (15) is fused when the opening part (13) is thermally sealed. The nonwoven cloth (15) may be a woven cloth or a knitted cloth, and may not be adhered nor fused to the inner surfaces of the sheets (11) and (12).</p> |
