PROBLEM TO BE SOLVED: To provide a composite powder obtained by homogeneously coating, based on an environmentally friendly and simple low-cost method, the surface of a flaky substrate powder with zinc oxide particles whose morphology has been spherically controlled and a coated composite powder obtained by surface-coating this composite powder with a hydrophobic compound and to provide a cosmetic excellent in terms of use sensation and ultraviolet shieldability with which this coated composite powder is mixed.SOLUTION: The provided composite powder is obtained by coating, at 5-80 mass%, the surface of a flaky substrate powder with zinc oxide whose morphology has been spherically controlled. In this composite powder, the zinc oxide coated on the surface of the flaky substrate powder has formed a sphere of 20-5000 nm as a result of the integration of primary particles having diameters of 2-200 nm.COPYRIGHT: (C)2014,JPO&INPIT【課題】環境に優しく、簡便で低コストな方法にて、形態が球状に制御された酸化亜鉛粒子を薄片状基板粉末の表面に均一に処理された複合粉末と、この複合粉末に疎水性の化合物を表面被覆してなる被覆複合粉末を提供する。さらに、この被覆複合粉末を配合した使用感や紫外線遮蔽に優れた化粧料を提供する。【解決手段】薄片状基板粉末の表面に、形態が球状に制御された酸化亜鉛を5~80質量%被覆処理してなることを特徴とする複合粉末。薄片状基板粉末の表面に被覆処理された酸化亜鉛は、粒子径2~200nmの一次粒子が集積されて20~5000nmの球状を形成していることを特徴とする複合粉末。【選択図】なし
