| 摘要 |
PURPOSE: To maintain the quality of a fluid product which is a content and the closing characteristic of a self-sealing dispensing valve by mounting the self-sealing dispensing valve of the prescribed structure on a neck part of the prescribed structure of a container. CONSTITUTION: In a dispensing package 1, the fluid material in a container body 2 is fed out through a feed opening part 10 of its neck part 9. A ring- shaped recessed edge lip 13, and a shrinkable collar 14 erected therefrom are formed on an upper part of the neck 9. A self-sealing dispensing valve 3 formed of silicon rubber is approximately truncated conical, and provided with a ring- shaped elastically deformable flange 19, and a slit-shaped opening part 20 which is opened when the pressure in the container is not less than the prescribed value and closed when the pressure is below the prescribed value, is provided on its top wall 17. When the dispensing valve 3 is placed on the lip 13 of the container body 2, the collar 14 of the neck part 9 of the container body is elastically deformed inwardly in the radial direction, houses the flange 19, and the part of the inwardly deformed collar 14 forms a rim 27, the rim 27 presses the flange 19 of the dispensing valve 13 to form the sealing to prevent the leakage. |
