| 摘要 |
[Problem] To provide a method for storing hollow balls easily and inexpensively. [Solution] This hollow ball storage method comprises: (1) a step for placing hollow balls (4), which have an outer shell and a space covered by said outer shell, in a holding section (6); (2) a step for reducing the temperature of the hollow balls (4) below the external air temperature; and (3) a step for storing the hollow balls with the temperature of the hollow balls (4) reduced below the external air temperature. Preferably, the storage method also comprises (4) a step for increasing the temperature of the hollow balls (4) after Step (3). Preferably, in step (4), the temperature of the hollow balls (4) is increased to a temperature exceeding the dew point of the external air. |
