20100329589 | Air-Cushioning Material and Bag For Transporting Packaging Object - An air-cushioning material comprises a first air chamber that constitutes a bottom portion of a storage portion for storing a packaging object, and a second air chamber that constitutes a peripheral wall portion of the storage portion. The first air chamber comprises a valve capable of injecting and evacuating air, and an upper face portion in which a vent hole is formed, the first air chamber and the second air chamber are communicated each other via the vent hole. The second air chamber bulges into the storage portion, when the second air chamber is filled, via the vent hole, with air injected into the first air chamber via the valve. Thereby, sufficient air can fill the portion that constitutes the bottom portion of a storage portion where the packaging object is stored, and the cushioning effect of air can be effectively exerted, so that the packaging object can be effectively prevented from being damaged or the like on account of, for instance, external impacts. | 12-30-2010 |