PROBLEM TO BE SOLVED: To provide composite particles which give transparent appearances to skins by brilliant color development, and realize good finish appearances hiding skin troubles such as spots or freckles.SOLUTION: The composite particles comprise the following components (A), (B), (C) and (D): wherein (A) is plate-like particles which have an average primary particle diameter of 5 to 25 &mum and involve 5 to 50 mass% of fine particles having an average primary particle diameter of 0.01 to 0.1 &mum and a refractive index of &ge2 in plate-like particles having a refractive index of 1.3 to 1.8, (B) is a colored pigment having an average primary particle diameter of 0.1 to 1 &mum, (C) is fine particles having an average primary particle diameter of 0.01 to 0.1 &mum and a refractive index of &ge2, and (D) is an organic polymer, and wherein the average particle diameter of the component (B) is 10 to 100 times the average particle diameter of the component (C), and the surface of the component (A) is covered with the components (B), (C) and (D).COPYRIGHT: (C)2009,JPO&INPIT【課題】より鮮やかな発色によって肌に透明感を与え、しみやソバカスなどの肌トラブルを目立たせない仕上がりを実現する複合化粒子を提供すること。【解決手段】次の成分(A)、(B)、(C)及び(D):(A)屈折率1.3~1.8の板状粒子内部に、平均一次粒子径0.01~0.1μmでかつ屈折率2以上の微粒子を5~50質量%内包している、平均一次粒子径5~25μmの板状粒子、(B)平均一次粒子径0.1~1μmの着色顔料、(C)平均一次粒子径0.01~0.1μmでかつ屈折率2以上の微粒子、(D)有機高分子化合物で構成され、成分(B)の平均一次粒子径が、成分(C)の平均一次粒子径の10~100倍であり、成分(A)の表面を成分(B)、(C)及び(D)で被覆した複合化粒子。【選択図】なし
