| 摘要 |
PROBLEM TO BE SOLVED: To provide a pump container utilizing a superposed and separable bottle which can be manufacture without increasing assembly processes, which dispenses with an additional valve by forming a valve for closing an air port with a portion of an inner layer, and which can be simplified in structure and reduced in cost. SOLUTION: In a superposed and separable bottle, an inner layer 3 separable from an outer layer 2 is formed on an inner face of the outer layer 2 in a superposed state, and an air inlet 4 for allowing air to flow into a space between the outer layer 2 and the inner layer 3 is defined in the outer layer 2. The air inlet 4 provided in the outer layer 2 is closed from inside by the inner layer 3, and a closing part 3b of the inner layer 3 forms a valve which is deformed inwardly by an ambient air pressure to open the air inlet 4 when a negative pressure is generated in the space between the outer layer 2 and the inner layer 3. |
