BICOLORED BALL

PROBLEM TO BE SOLVED: To provide a preparing process for efficiently producing bicolored balls. SOLUTION: This process comprises the following steps: (i) preparing unicolored balls by agglomerating and incorporating resins together with a first coloring agent and inorganic salts; (ii) contacting the obtained unicolored balls with an oxidant and then polymerizing it with a monomer and free radical initiator; (iii) molding the resulted unicolored balls on a glass or plastic layer; and (iv) subjecting the thus obtained unicolored balls to heat deposition with a second coloring agent different from the first coloring agent to thereby coat a hemisphere of each unicolored ball therewith thus obtaining the bicolored balls.