<；P>；PROBLEM TO BE SOLVED: To provide a hair dye composition which is excellent in a hair-dyeing property, can be adjusted to a desired color, and can especially dye gray hair in a red-free black or gray color. <；P>；SOLUTION: This one pack type hair dye composition has pH 8 to 11 and comprises (A) one or more compounds represented by formula (1) [the broken line shows the presence or absence of a &pi；-bond； R<；SP>；1<；/SP>；is OH or acetoxy； R<；SP>；2<；/SP>；is H, -COOR (R is H, CH<；SB>；3<；/SB>；or C<；SB>；2<；/SB>；H<；SB>；5<；/SB>；) or -COO<；SP>；-<；/SP>；X<；SP>；+<；/SP>；(X<；SP>；+<；/SP>；is a cation)； R<；SP>；3<；/SP>；is H, acetyl, CH<；SB>；3<；/SB>；or C<；SB>；2<；/SB>；H<；SB>；5<；/SB>；], (B) a direct dye, (C) a nonionic surfactant, and (D) a thickening polymer. <；P>；COPYRIGHT: (C)2008,JPO&INPIT
