PACKAGING BAG HAVING DOUBLE SHOCK-ABSORBING STRUCTURE WITH INTERNAL SHOCK-ABSORBING PART AND EXTERNAL SHOCK-ABSORBING PART BY SINGLE AIR INJECTION, AND PACKAGING METHOD USING SAME

摘要

The present invention relates to a packaging bag having a double shock-absorbing structure with an internal shock-absorbing part and an external shock-absorbing part by a single air injection, and a packaging method using the same, and the packaging bag for packaging an object to be packaged forms a double shock-absorbing structure capable of protecting the object to be packaged from an external shock so as to prevent damage to the object to be packaged, such that a package is not damaged even though the package is transported by a parcel service or the like and a packaging operation can be carried out in a very simple manner since air is completely filled in the internal and external shock-absorbing parts even by a single air injection. To this end, the packaging bag having a double shock-absorbing structure with an internal shock-absorbing part and an external shock-absorbing part by a single air injection, according to the present invention, comprises: an internal shock-absorbing part formed by mutually coupling a pair of base sheets, wherein an accommodation portion for accommodating an object to be packaged is formed and air is filled therein; an external shock-absorbing part which surrounds the internal shock-absorbing part and has air filled therein; and an air injection part into which air is injected through an air inlet, wherein the air injection part is formed so as to be communicated by passing both an air filling entrance of the internal shock-absorbing part and an air filling entrance of the external shock-absorbing part such that the air is completely filled in the internal shock-absorbing part and the external shock-absorbing part through the air injection part even by a single air injection.