| 摘要 |
PURPOSE: A tube container including a viscous material extruding piston is provided to extrude all viscous materials from the tube container without remains. CONSTITUTION: A pressurizing part(31) is installed at the internal side of a tip-end part adjacent to the outlet(11) of a main body(10). A pressurization operating part(35) is elastically changed into a reduced shape based on a pressing operation. A reversed movement preventing part(37) is elastically changed into a reduced shape based on the pressing operation of the pressurization operating part. The reversed movement preventing part is elastically restored when the pressing operation is released. The reversed movement preventing part is closely adhered to the inner lateral side of the main body.
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