| 摘要 |
PROBLEM TO BE SOLVED: To accurately grasp a flow state by visual observation when visually observing the flow state of an internal fluid through a non-joining part of a conductive band of a tube body from the outside of an antistatic tube, if the fluid flows inside the transparent tube body in which the resin conductive band is joined to the outer circumferential surface of the antistatic tube.SOLUTION: An antistatic tube 1 has a transparent resin tube body 2 and a resin conductive band 3 extending along an outer circumferential surface of the tube body 2 and joining to the tube body 2. The conductive band 3 includes a left-handed spiral conductive band 3a extending so as to draw a left-handed spiral around an axis 4 of the tube body 2 and a right-handed spiral conductive band 3b extending so as to draw a right-handed spiral around the axis 4, in which an intersection part 3c of the left-handed spiral conductive band 3a and the right-handed spiral conductive band 3b are electrically joined to each other.SELECTED DRAWING: Figure 1 |
