To solve a problem such that tube containers that store the contents of viscous body such as medicated cream, tooth paste, or the like, are mostly composed of a cap of exclusive use therefor or extrusion opening with screw, and a cap of exclusive use therefor is commonly required as a separate component in these containers.

A one-touch operation capless tube container comprises a body part that houses contents therein, a shoulder part that closes the tip end of this body part, a neck part of cylindrical shape whose tip end has an extrusion opening for contents formed thereon with its base end being continuously integrally formed at the shoulder part, an extrusion opening for contents at the cylindrical tip end, and a chuck structure that retains a suspension function, and stores a liquid of high viscosity such as a tooth paste, and the like, wherein adding a chuck function to the extrusion opening of the tube container allows extrusion, suspension, and sealing operation of the contents to be freely performed with varying pressures of acupressure on the tube container body or extrusion opening for free extrusion, suspension, or sealing operation of the contents, and also the one-hand operation is enabled for of extrusion of the contents of the tube, not to mention the preservation of contents and prevention of oxidation thereof.