PROBLEM TO BE SOLVED: To provide a bleaching agent composition which is used for teeth, has both high safety and high bleaching performance, and is also useful from the aspect of generality.SOLUTION: This bleaching agent composition for teeth is characterized by comprising an aqueous emulsion component which can react with a calcium compound having an average particle diameter of <3 &mum to form coagulated particles having particle diameters of &ge3 &mum, a water-soluble organic acid and/or its water-soluble salt component (but, the calcium salt of the water-soluble organic acid is insoluble or slightly soluble in water), and/or a sulfate component, and a persulfuric acid-based bleaching agent.COPYRIGHT: (C)2007,JPO&INPIT【課題】高い安全性と漂白性能を併せ持ちそして汎用性の面からも有用な歯牙用漂白剤組成物を提供すること。【解決手段】3μm未満の平均粒子径を有しそしてカルシウム化合物と反応して粒径3μm以上の凝集粒子を形成しうる水性エマルジョン成分、水溶性有機酸および/またはその水溶性塩成分(但し、該水溶性有機酸のカルシウム塩は、水不溶性ないし水難溶性である)および/または硫酸塩成分、ならびに過硫酸系漂白剤を含有する歯牙用漂白剤組成物。【選択図】なし
