Hair Liao Group are at object for this Hair bright Ti Gong mono- Seed acidity dyes, free Qi Which of You Machine Suan With of 1.5~4.5 Quality amounts %, Election of Han You From water-soluble high-molecular compounds Ji Qi Which Agencies of No Machine Suan With at group in Zhi 0.005~1.5 Quality amounts % of Shao mono- Seed Slow Red Elixirs and acid dyes. Acidity dye Hair Liao Group dye the pH value As 5.5~6 of the hair Hair of Hou using acid dye Hair Liao Group at the pH value As 4~6 of 10 Quality amount % aqueous solutions of object at object.本發明提供一種酸性染髮料組成物，含有離子性水溶性高分子化合物1.5～4.5質量%、選自由有機酸與其鹽及無機酸與其鹽構成之群中之至少一種緩衝劑0.005～1.5質量%、及酸性染料。酸性染髮料組成物之10質量%水溶液之pH值為4～6，使用酸性染髮料組成物染色後之毛髮之pH值為5.5～6。
