PROBLEM TO BE SOLVED: To provide a foamy two-part type hair dye which has good stability, can easily be coated on hair, little gives irritability to scalp, and is high in decolorability and hair dyeability.SOLUTION: This two-part type hair dye comprises the first agent containing an alkali agent, the second agent containing hydrogen peroxide, and a non-aerosol foamer container for extruding a mixture liquid comprising the first agent and the second agent in a foamy state, wherein the mixture liquid contains the following component (A). (A) A sulfonic acid-based anionic surfactant.COPYRIGHT: (C)2009,JPO&INPIT【課題】安定性が良好で、更に頭髪に塗布しやすく、頭皮への刺激性が低く、かつ脱色性、染毛性の高い泡状の二剤式染毛剤の提供。【解決手段】アルカリ剤を含有する第1剤、過酸化水素を含有する第2剤、及び第1剤と第2剤の混合液を泡状に吐出するためのノンエアゾール・フォーマー容器からなり、混合液中に次の成分(A)を含有する二剤式染毛剤。(A)スルホン酸系アニオン界面活性剤【選択図】なし
