| 摘要 |
PROBLEM TO BE SOLVED: To achieve efficient inhibition and reduction of the generation of after-draw by actively outflowing a residual content at an injection port of an aerosol type product and in its vicinity through the injection port to an exterior space area by the action of a propellant gas phase component.SOLUTION: A propellant gas phase valve (housing hole parts 3a, 4a and a movable valve member 5) for directly taking a propellant gas phase component of a container body in a housing 3 is provided. At a stage when a stem 1 moves upward and returns to a stationary mode position at the end of a content release operation, an inflow valve 3f to the housing 3 is closed, the propellant gas phase valve and an outflow valve 1a from the stem 1 are opened, and thereby the timing of the propellant gas phase component outflowing toward an injection port along a flow passage C is ensured. The movable valve member 5 held in an upper annular top face 1e in an operation mode moves downward with the stem 1 in a state of contacting with an outward lower annular step part 1f at the time of transition to a stationary mode, and thereby the timing in which the propellant gas phase valve and the outflow valve are opened is shortened as much as possible. |
