PARTICLE AND PRODUCTION METHOD THEREOF

To insolubilize a water-soluble anti-dandruff agent such as piroctone olamine into a granular form in the presence of a surfactant in order to leave the water-soluble anti-dandruff agent such as piroctone olamine on a scalp surface after shampooing.SOLUTION: A particle production method comprises dissolving a water-soluble anti-dandruff agent, a compound with a melting point of 50-80°C, and a surfactant in an aqueous medium, and precipitating the compound with a melting point of 50-80°C to obtain particles. A particle contains a water-soluble anti-dandruff agent, a compound with a melting point of 50-80°C, and a surfactant, where the water-soluble anti-dandruff agent and the surfactant are contained in the compound with a melting point of 50-80°C.SELECTED DRAWING: None 【課題】洗髪後に、ピロクトンオラミン等の水溶性抗フケ剤を頭皮表面に残留させるために、界面活性剤存在下にピロクトンオラミン等の水溶性抗フケ剤を粒状に不溶化させる。【解決手段】水溶性抗フケ剤、融点が５０〜８０℃の化合物、及び界面活性剤を水性媒体に溶解し、前記融点が５０〜８０℃の化合物を析出させることにより粒子を得ることを特徴とする粒子の製造方法。水溶性抗フケ剤、融点が５０〜８０℃の化合物及び界面活性剤を含む粒子であって、前記融点が５０〜８０℃の化合物中に前記水溶性抗フケ剤及び界面活性剤を含有させてなる粒子。【選択図】なし