PROBLEM TO BE SOLVED: To provide a new acidic hair dye composition which exerts excellent hair dyeability and color durability on hair subjected to a hair-dyeing treatment, by improving disadvantages of conventional acidic hair dye compositions.SOLUTION: The acidic hair dye composition contains a cationized hyaluronic acid which comprises a group containing a quaternary ammonium group and has a degree of cationization of 0.15-0.6.COPYRIGHT: (C)2010,JPO&INPIT【課題】従来の酸性染毛剤組成物の欠点を改良して、染毛処理後の毛髪の染毛性及び色持ちに優れた新規の酸性染毛剤組成物を提供する。【解決手段】本発明の酸性染毛剤組成物は、第四級アンモニウム基含有基を有し、かつ、カチオン化度0.15~0.6のカチオン化ヒアルロン酸を含有する。【選択図】なし
