PROBLEM TO BE SOLVED: To provide a hairdye having excellent foam retentivity, hardly causing drooping even when a coated amount is increased, having low irritation, and capable of being ejected in a foam state suitable for partial dyeing.SOLUTION: The hairdye at least contains 0.1-2.0 mass% of at least one kind of an aqueous acid dye, 8-25 mass% of ethanol and/or 1,3-butylene glycol, 5-15 mass% of penetration promoter, 1-10 mass% of at least one kind of diethanol oleate and laureth-1 phosphate as a surfactant, and 45-65 mass% of water, and is ejected in a foamed shape by a foam-forming ejector.COPYRIGHT: (C)2011,JPO&INPIT【課題】泡持ち性に優れ、塗布量を増やしても垂れ落ちせず、低刺激性であり、部分染めに好適な泡状に吐出できる染毛料を提供する。【解決手段】水性酸性染料の少なくとも1種0.1~2.0質量%と、エタノール及び/又は1,3-ブチレングリコール8~25質量%と、浸透促進剤5~15質量%と、界面活性剤として、オレイン酸ジエタノール、ラウレス-1リン酸の少なくとも1種1~10質量%と、水45~65質量%とを少なくとも含有し、泡状吐出器によって泡状に吐出できることを特徴とする染毛料。【選択図】なし
