PROBLEM TO BE SOLVED: To provide a double structure aerosol container charged with a second agent containing a specific component together with hydrogen peroxide in a double agent hair cosmetic so that the container causes no corrosion on the inner surface of an outer container, even if it is stored at a high temperature.SOLUTION: A double structure aerosol container 10 for double agent type hair cosmetic having outer containers 12a and 12b and inner containers 11a and 11b accommodated in said outer containers is characterized: in that said inner containers 11a and 11b are formed of inner and outer layers made of a polyolefin resin, and an intermediate layer made of an annular olefin copolymer or an amorphous polyester resin； and in that the second agent of said double structure aerosol container is hydrogen peroxide as a major component, and contains at least one kind of an organic acid or an organic acid compound.SELECTED DRAWING: Figure 3【課題】二剤式毛髪化粧料における過酸化水素と共に特定の成分を含有する第二剤が充填され、高温で保存されても外装容器内面に腐食を生じることがない、二重構造エアゾール容器を提供することである。【解決手段】外装容器１２ａ、１２ｂ及び該外装容器に収納される内袋１１ａ、１１ｂを有する二剤式毛髪化粧料用の二重構造エアゾール容器１０において、前記内袋１１ａ、１１ｂがポリオレフィン系樹脂から成る内外層及び環状オレフィン系共重合体又は非晶性ポリエステル樹脂から成る中間層から成り、前記二剤式毛髪化粧料の第二剤が過酸化水素を主要成分とし、有機酸又は有機酸化合物の少なくとも１種を含有することを特徴とする。【選択図】図３
