PROBLEM TO BE SOLVED: To provide an aerosol type hair dye composition which is excellent in the foam stability of a discharged solution and can easily be applied on hair.SOLUTION: This aerosol type hair dye composition comprises a propellant and an aerosol raw solution which has pH 8 to 11 and comprises (A) two or more compounds represented by formula (1) [the broken line shows the presence or absence of a &pi-bond R1 is OH or acetoxy R2 is H, -COOR4 (R4 is H, CH3 or C2H5) or -COO- X+ (X+ is a cation) R3 is H, acetyl, CH3 or C2H5], (B) sulfate type surfactants comprising 30 to 70% of a sulfate of formula (2) [R is an 8 to 18C alkyl or alkenyl (a) is 0 or a positive integer M is an alkali metal, an alkaline earth metal or ammonium] [(a)=0], 14 to 27% of a sulfate of formula (2) [(a)=1], and 5 to 20% of a sulfate of formula (2) [(a)=2], wherein the total amount of the sulfates of formulas (2) [(a)=0, 1 and 2] is &ge75%, (3) a compound represented by formula (3) [(m)+(n)=7 to 25 (x) is 6 to 16 on the weight average], and (D) a thickening polymer.COPYRIGHT: (C)2008,JPO&INPIT【課題】吐出液の泡安定性に優れ、毛髪に塗布しやすいエアゾール型染毛剤組成物の提供。【解決手段】(A)式(1)で表される化合物の2種以上、(B)式(2)中、a=0が30~70%、a=1が14~27%、a=2が5~20%、a=0~2が計75%以上である硫酸塩型界面活性剤、(C)式(3)で表される化合物及び(D)増粘ポリマーを含有するpH8~11のエアゾール原液並びに噴射剤からなるエアゾール型染毛剤組成物。〔式(1):破線はπ結合の存在又は不存在、R1はOH又はアセトキシ基、R2はH、-COOR4(R4はH、CH3又はC2H5)又は-COO- X+(X+は陽イオン)、R3はH、アセチル基、CH3又はC2H5。式(2):RはC8-18のアルキル基又はアルケニル基、aは0又は正の整数、Mはアルカリ金属、アルカリ土類金属又はアンモニウム。式(3):m+n=7~25、xは重量平均で6~16。〕【選択図】なし
