sin monomer-dispersed liquid is suspended or emulsified in pure water including a suspension protectant, a silicone-based defoamer and a crosslinking agent, thereby producing a suspended liquid or an emulsified liquid having a dispersed particle diameter of 0.05 ??m to 5 ??m.Examples of the suspension protectant include nonionic surfactants such as polyoxyethylene alkyl ether and polyoxyethylene a