| 摘要 |
<p>An air enclosure having cut hole type valves is provided to improve the structure of an air package bag and simultaneously to let air chambers filled with air, thereby cutting down the production cost of the manufacturing process. An air enclosure comprises an air valve including: two inner film, an air inlet, an air passageway(5) and a plurality of cut holes(8). The inner films are folded together in a vertical direction and hot sealed along hot sealing lines(3a,3b,3c,3d) to cause parts of rims of the inner films to be adhered to each other. The air inlet is formed by spreading a heat resistant material(1c) between the inner films, the air inlet(2e) is positioned between not-adhered-to-each-other parts of the rims of the inner films that are not adhered to each other. The air passageway is connected to the air inlet. The cut holes are positioned on the inner films and distributed on one side of the air passageway or two sides thereof. Each of the cut holes is an opening formed by tearing the inner films or a through hole formed by using a sharp tool to pierce the inner films.</p> |
