| 摘要 |
The present invention relates to an air discharge device for a packaging material, which enables only air inside a packaging material to be discharged to the outside by being sealed with the packaging material to store a storage product therein, and being coupled to a through hole formed on one side of the packaging material. Provided is an air discharge device for a packaging material, comprising: an inner cap arranged inside the packaging material, wherein an inflow hole is formed in a central portion, and a storage space is formed to be coupled to the surroundings of the through hole; an outer cap arranged outside the packaging material, wherein a discharge hole is formed in a central portion, and coupled to inner cap to seal the through hole; and a valve unit having a film member prepared by being adjacent to the inflow hole in the storage space, an absorption member arranged to be in contact with the film member to absorb moisture inside the storage space, and an elastic member elastically supporting a space between the absorption member and the discharge hole. |
