Powder container, method of assembling the same and method of reducing the volume of the same

摘要

A powder container of the present invention is made up of a flexible or deformable bag (20) storing powder therein and a box (50) for accommodating the bag. A seal valve is fitted in an outlet portion formed in the bag while a cap removably closes the outlet portion. When the bag is pressed in the collapsing direction, the powder is prevented from flying about via the seal valve (23). The powder container is easy to assemble.