| 摘要 |
The present invention relates to a packaging pack and a manufacturing method thereof. The packaging pack allows a check valve film to be arranged to be fitted to the center parts of first and second outer films, thereby preventing the check valve film from moving in the gap between the center parts of the first and second outer films. Moreover, the packaging pack prevents the fluid filled between the first and second outer films from leaking to the outside of the first and second outer films by efficiently preventing the check valve film from being separated from the first and second outer films. Thereby, the packaging pack has excellent air tightness and water tightness. |
