| 摘要 |
A method for making a cushioning air bag, including: providing an air cylinder sheet (200) constituted by a plurality of air cylinders (1) formed by adhering two sheets of film (1a) with a plurality of longitudinal and transversal heat sealing lines (21,22); forming a plurality of turning points (4a, 4b) on each side of a middle line (M) being transversal to the air cylinders; turning the air cylinder sheet through the turning points along the middle line; adhering two sides of the turned air cylinder sheet with lateral heat sealing lines extending from two respective ends of the air cylinder sheets to a plurality of nodes (31a, 31b) on two respective sides of said middle line, thereby creating a non-heat sealing section (3) between the plurality of nodes and the middle line; and expanding the non-heat sealing section to form a lateral polygonal opening (40). |
