PROBLEM TO BE SOLVED: To provide hair spray of which user can spray in a good feeling by re-examining the behavior of hair spray users in detail.SOLUTION: This aerosol type hair spray is characterized by filling ethanol stock liquid containing 0.1 to 27 mass% copolymer comprising a constituting unit of formula (1), and an aerosol propellant comprising a liquefied petroleum gas having 0.15 to 0.2 MPa initial inner pressure at 20°C such that the mixing mass ratio of the ethanol stock liquid to the aerosol propellant is in the range of (the ethanol stock liquid)/(the aerosol propellant)=(40/60) to (50/50).COPYRIGHT: (C)2011,JPO&INPIT【課題】ヘアスプレー使用者の行動を詳細に検討し直し、使用者が心地よく噴霧できるヘアスプレーを提供する。【解決手段】下記式(1)の構成単位からなる共重合体を0.1~27質量%含有するエタノール原液と、初期内圧が20℃で0.15~0.2MPaの液化石油ガスからなるエアゾール噴射剤とを、エタノール原液とエアゾール噴射剤との混合質量比がエタノール原液/エアゾール噴射剤=40/60~50/50の範囲で充填することを特徴とするエアゾール型毛髪化粧料。(1)【選択図】なし