A METHOD FOR CONTROLLING THE PROPERTIES OF A SURFACE

摘要

In a method for adjusting the properties of a surface in a rotating member ( 3) that is in contact with a continuous moving material web (W) the surface of the rotating member (3) that is in contact with the material web (W) contain s photocatalytically active material, light is directed to the surface of the rotating member (3) that is in contact with the material web (W), the light having such energy that it is capable of activating the photocatalytically active material, and the activation of the photocatalytically active materia l causes oxidation of substances on the surface of the rotating member (3) and/or changes in the hydrophilic properties of the surface.