Production methods and titanium ball of titanium ball

The present invention, titanium can deodorization function of titanium dioxide, antibacterial function, antifouling function, increase the air and water purification function, to easily and accurately coated titanium oxide (23) to a substrate (21, 22) a production method of a ball, characterized in that it comprises the step of also located, is color modified by the collision and / or rubbing bordered titanium oxide powder in the production method of the titanium ball to exert sufficiently the functions even in a dark place such as a toilet tank it is an.