PROBLEM TO BE SOLVED: To provide aerosol type hair dyeing kits that can apply as aimed a hair dye to a gray hair portion at the root about which is anxious while mixing a first agent composition and a second agent composition easily.SOLUTION: An aerosol type hair dyeing kit consists of a first agent composition for aerosol hair dyeing containing a cationic surfactant, nonionic surfactant, higher alcohol, liquid oil solution, oxidation dye intermediate, and alkaline agent； a second agent composition for aerosol hair dyeing containing hydrogen peroxide, a nonionic surfactant, higher alcohol, and hydrocarbon； and a brush for hair treatment agents, the brush for hair treatment agents having a row of teeth of an outside brush respectively provided along the side edge part of either side of the cross direction of a brush stand, and a row of teeth of an inside brush adjacently provided to inside of the cross direction of the outside brush teeth, the tensile modulus of elasticity of the inside brush teeth is lower than the tensile modulus of elasticity of the outside brush teeth.SELECTED DRAWING: Figure 1【課題】第１剤組成物と第２剤組成物とを容易に混合しつつ、気になる根元の白髪の部分へ狙い通りに染毛剤を塗布できるエアゾール染毛キットの提供。【解決手段】カチオン界面活性剤、非イオン界面活性剤、高級アルコール、液状油剤、酸化染料中間体及びアルカリ剤を含有するエアゾール染毛用第１剤組成物と、過酸化水素、非イオン界面活性剤、高級アルコール及び炭化水素を含有するエアゾール染毛用第２剤組成物と、毛髪処理剤用ブラシからなり、毛髪処理剤用ブラシが、ブラシ台の幅方向の両側の側縁部に沿って各々設けられた外側ブラシ歯列と、該外側ブラシ歯の前記幅方向の内側に隣接して設けられた内側ブラシ歯列とを有し、内側ブラシ歯の引張弾性率が外側ブラシ歯の引張弾性率よりも低い、エアゾール型染毛キット。【選択図】図１
