PROBLEM TO BE SOLVED: To provide a method of producing an aqueous thickener for a teeth bleaching material in a short time efficiently, the thickener being uniformly dispersed with titanic oxide, the thickener containing adequately thickened titanic oxide in which generation of undissolved lump being suppressed and an organic thickener.SOLUTION: A method of producing an aqueous thickener for a teeth bleaching material is provided, the thickener containing titanic oxide having photocatalytic action and an organic thickener. The method comprising the processes of: mixing titanic oxide with an aqueous solution containing 65 to 90 mass% of polyalcohol mixing an organic thickener with a mixed aqueous solution containing the polyalcohol obtained in the prior process and titanic oxide and adjusting the pH of the aqueous thickener obtained in the prior process.COPYRIGHT: (C)2015,JPO&INPIT【課題】歯牙漂白材において、酸化チタンが均一に分散され、且つ継粉の発生を抑制し適度に増粘化された酸化チタンと有機増粘剤を含む歯牙漂白材用増粘液を短時間で効率的に製造するための方法を提供する。【解決手段】光触媒作用を有する酸化チタンと有機増粘剤を含む歯牙漂白材用増粘液の製造方法であって、多価アルコールを65~90質量%含む水溶液と酸化チタンを混合する工程、前記工程において得られた多価アルコール及び酸化チタンを含む混合水溶液と、有機増粘剤を混合する工程、前記工程で得られた増粘液のpHを調整する工程を有する歯牙漂白材用増粘液の製造方法。【選択図】なし
