| 摘要 |
PROBLEM TO BE SOLVED: To make it possible to remove the foreign matter, dirt, dust, etc., sticking to the surface of a web-like roll without flawing this surface or giving damage thereto. SOLUTION: Part of a drive roller 16 coated with an elastic body 14 on its peripheral surface is immersed into a washing liquid 22 and the drive roller 16 is rotated, by which the surface of the elastic body 14 is wet with the washing liquid 22. A traveling film 10 is continuously rubbed by the elastic body 14 wet with the washing liquid 22. The washing liquid is then ejected from a rinsing nozzle 18 to the surface rubbed with the elastic body 14. The foreign matter sticking to the film 10 is rubbed off by the shearing force of the elastic body 14 and the foreign matter not failing to be rubbed off by the elastic body 14 is flushed away by the washing liquid ejected from the rinsing nozzle 18.
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