PROBLEM TO BE SOLVED: To provide a hair dye composition having a high osmosis accelerating effect to hair of a dye and excellent dyeing characteristics, hardly causing stimuli to a skin, allowing easy removal of a pigment sticking to a skin, and giving good appearance.SOLUTION: The hair dye composition includes following four components as essential components: (A) a polyoxyethylene alkyl ether selected from those having a specific alkyl group carbon chain length and an ethylene oxide average addition mole number (a 12-14C alkyl group and/or a 18C unsaturated alkyl group, an average addition mole number n of 10-30) (B) benzyl glycerol (C) hydroxy carboxylic acid and/or a salt thereof and (D) an acid dye. In this way, the hair dye composition has a high osmosis accelerating effect to hair of the dye and excellent dyeing characteristics, hardly causes stimuli to a skin, allows easy removal of a pigment sticking to a skin, and gives good appearance.COPYRIGHT: (C)2012,JPO&INPIT【課題】染料の毛髪への浸透促進効果が高く染色性に優れ、皮膚への刺激が少なく、色素の肌染着除去性、ならびに外観の良い染毛剤組成物の提供。【解決手段】(A)特定のアルキル基炭素鎖長及び、エチレンオキシド平均付加モル数から選択されたポリオキシエチレンアルキルエーテル(アルキル基:炭素12-14、18、n=10~30)、(B)ベンジルグリセロール、(C)ヒドロキシカルボン酸及び/又はその塩、(D)酸性染料の4成分を必須成分として含有することにより、染料の毛髪への浸透促進効果が高く染色性に優れ、皮膚への刺激が少なく、色素の肌染着除去性、ならびに外観の良い染毛剤組成物を提供できる。【選択図】なし
