| 摘要 |
The present invention relates to a buffer packing material having an air injection path formed with a bypass and a method for manufacturing the same, and more particularly, to a buffer packing material, in which a bypass is formed at one side of a passage between an air injection path for injecting air from the outside and an air guiding path for guiding the injected air into an air cell and in communication with the outside so as to prevent a specific air cell from being deformed or broken by an excessive air injected into the specific air cell due to an increased pressure in the air injection path when air is injected into the cell, and a method for manufacturing the same. A buffer packing material having an air injection path formed with a bypass according to the present invention comprises a lower outer sheet; a lower inner sheet overlapping with an upper portion of the lower outer sheet so that a releasing band is formed in an upper portion of the lower inner sheet in a transverse direction along a front edge thereof; an upper inner sheet overlapping with the upper portion of the lower inner sheet and partially fused with the lower inner sheet to form a plurality of air guiding paths; and an upper outer sheet overlapping with the upper portions of the upper inner sheet and the lower outer sheet and partially fused with the upper inner sheet, the lower inner sheet and the lower outer sheet to form a plurality of air cells so that the air cells respectively have a plurality of air guiding paths and simultaneously to form an air injection path at front ends of the plurality of air cells so that the air injection path communicates with the air guiding paths, wherein the releasing band formed at the front end of the upper portion of the lower inner sheet is configured to define passages, the passages being formed at positions where the air injection path is connected to the air guiding paths between the air injection path and the air cells so that the air injection path communicates with the air guiding paths, and to define a bypass so that the bypass allows the passages, through which the air injection path communicates with the air guiding paths, to communicate with each other, one end of the bypass communicating with the outside, whereby if air is excessively injected into the air injection path, the overpressure air in the air injection path is discharged to the outside through the bypass to control an internal pressure of the air injection path. |
