PROBLEM TO BE SOLVED: To provide a dark brown color to black color hair dye composition which can easily be compounded with black color hair dyes, has an excellent dyeing property, has more excellent shampoo fastness than those of compositions containing cationic dyes which are conventional dyes for dyeing hair, and can prevent unnatural colors when faded.SOLUTION: The to black color hair dye composition which has an excellent dyeing property for keratin fibers especially contained in human hair and the like, includes a more excellent hair-dyeing property than hair dye compositions compounded with conventional black color cationic dyes, has improved shampoo fastness, and little changes in hue is found. Namely, the dark brown to black color hair dye composition comprises a hair dyeing dye (a) component comprising an oxazine-based hair-dyeing dye, a xanthene-based hair-dyeing dye, and one or more other dyes usable for dyeing hair as hair-dyeing dyes, an auxiliary (b) component (humectant, swelling agent, penetrant, pH-adjusting agent, surfactant, perfume, or the like), and water (c) component.COPYRIGHT: (C)2011,JPO&INPIT【課題】本発明に使用される染料の組み合わせは、黒色に配合しやすく、染着性に優れ、また従来の染毛用染料であるカチオン染料の配合例と比較し、シャンプー堅牢性にも優れ、退色時の不自然な色味も抑えることができる黒褐色~黒色系染毛料組成物を提供すること。【解決手段】特に人の毛髪等に含まれるケラチン繊維に対する染着性に優れ、また従来の黒色系カチオン染料を配合した染毛料組成物と比較し、染着性に優れ、シャンプー堅牢性が改善された色調変化の少ない黒色系染毛料組成物を見出した。すなわち、オキサジン系染毛用染料とキサンテン系染毛用染料および染毛用として使用可能なその他の染毛用染料を含有する染毛用染料(a)成分、助剤(b)成分(湿潤剤、膨潤剤、浸透剤、pH調整剤、界面活性剤、香料など)、および水(c)成分を含有する黒褐色~黒色系染毛料組成物を提供する。【選択図】なし
