Method of manufacturing metallic oxide particle-containing resin powder

A method of manufacturing metallic oxide particle-containing resin powder, including:

• dispersing metallic oxide particles having an average particle diameter of 0.003 μm to 0.1 μm and a UV shielding function in a (meth)acrylic-based resin monomer including 1% by mass to 50% by mass of a dispersant with respect to the metallic oxide particles to produce a (meth)acrylic-based resin monomer dispersion liquid;
• suspending or emulsifying the (meth)acrylic-based resin monomer dispersion liquid in pure water including 0.1% by mass to 10% by mass of a suspension protecting agent, 0.01% by mass to 5% by mass of a silicone-based antifoam agent, and 0.1% by mass to 10% by mass of a cross-linking agent with respect to the (meth)acrylic-based resin monomer dispersion liquid to produce a suspension liquid or emulsified liquid;
• and,
• adding 0.01% by mass to 1% by mass of a polymerization initiator with respect to the suspension liquid or emulsified liquid to the suspension liquid or emulsified liquid to cause suspension polymerization or emulsification polymerization, thereby generating metallic oxide particle-containing resin powder.