PROBLEM TO BE SOLVED: To provide a second agent composition for hair dyeing or hair bleaching, excellent in preservation stability and mixing property with a first agent, without dripping on applying to the hair after the mixing, not sticky, excellent in extensibility and having a good compatibility with the hair and excellent in bleaching property.SOLUTION: This second agent for hair-dyeing or hair-bleaching, used by mixing with the first agent composition containing an alkaline agent is provided by containing the following components (a) to (c): (a) 10 to 50 wt.% of oily component (b) the total of 2 to 18 wt.% of (b1) a cationic surfactant and (b2) a non-ionic surfactant and (c) 0.1 to 12 wt.% of an oxidant based on hydrogen peroxide. Further, the agent contains 3 to 12 wt.% of a higher alcohol (a1) at least being solid in a normal temperature as the component (a) and having the weight ratio of (b1)/(b2) in the range of 0.1 to 10 and the weight ratio of the (a1)/(b2) in the range of 0.5 to 5.COPYRIGHT: (C)2007,JPO&INPIT【課題】保存安定性と第1剤との混合性に優れ、混合後の毛髪への適用時に液ダレせず、べたつかず伸展性に優れ毛髪へのなじみが良く、かつ脱色力に優れる染毛用又は毛髪脱色用第2剤組成物の提供。【解決手段】アルカリ剤を含有する第1剤組成物と混合して使用する染毛用又は毛髪脱色用第2剤組成物であって、次の成分(a)~(c)(a) 油性成分:10~50重量%(b) カチオン界面活性剤(b1)及び非イオン界面活性剤(b2):合計2~18重量%(c) 酸化剤:過酸化水素換算量で0.1~12重量%を含有し、成分(a)として少なくとも常温で固体の高級アルコール(a1)を第2剤中の3~12重量%含有し、(b1)/(b2)の重量比が0.1~10であり、(a1)/(b2)の重量比が0.5~5である染毛用又は毛髪脱色用第2剤組成物。【選択図】なし
