PROBLEM TO BE SOLVED: To provide a hair dye which assures good foaming and good foam quality when used in the form of a foam, while being prevented from the occurrence of dripping when used in the form of a viscous liquid.SOLUTION: A multiple pack type hair dye, which comprises a first agent that contains an alkaline agent and a second agent that contains an oxidant, and which is applied to head hair in the form of a viscous liquid mixture of the each agent. The hair dye contains a component (A): 1-10 mass% of an ionic surfactant that contains a specific higher fatty acid and a component (B): a higher alcohol. The mass ratio B/A is within the range of 0.1-3.COPYRIGHT: (C)2012,JPO&INPIT【課題】泡状用途の染毛剤として良好な泡立ちや泡質の良好さが確保され、粘液状用途の染毛剤としても液の垂れ落ちを起こさない染毛剤を提供する。【解決手段】 アルカリ剤含有の第1剤と酸化剤含有の第2剤を含み、各剤の粘液状混合物を頭髪に適用する多剤式染毛剤であって、(A)成分:特定の高級脂肪酸類を包含するイオン性界面活性剤1~10質量%と、(B)成分:高級アルコールを含有し、両者の質量比B/Aが0.1~3の範囲内である染毛剤。【選択図】なし
