Inner peripheral surface treated tubular film, and inner peripheral surface treatment apparatus and inner peripheral surface treatment method

摘要

A tube-shaped film, made of fluorine resin, having a fold-free, smooth, and uniform inner peripheral surface formed thereon by means of surface treatment; and a method and an apparatus for treating the inner peripheral surface of the tube-shaped film. The apparatus includes a holding means (1) for holding a tube-shaped film (7) on the inner peripheral surface of a cylindrical body (2) with a cylindrical configuration of the tube-shaped film maintained; and a treatment means (8 and/or 11) to be inserted into the cylindrical body to treat the inner peripheral surface of the tube-shaped film held on the inner peripheral surface of the cylindrical body. The holding means and the treatment means make a uniform linear motion relative to each other and a uniform rotary motion relative to each other. IMAGE