| abstract |
(57) [Abstract] [PROBLEMS] To improve the hair dyeing property of an aerosol acidic semi-permanent hair dye composition having excellent coating operability. SOLUTION: When an acidic semi-permanent hair dye composition for aerosol injection, which comprises an acidic semi-permanent hair dye stock solution containing an acidic dye and a propellant and is used by being filled in an aerosol container and ejected in the form of foam, , Within 10 seconds after ejection, 25 Defoam to 0.1 g / ml or more at 1 ° C and 1 ° C. In this case, the viscosity of the acidic semi-permanent hair dye concentrate is 1000 It is preferably set to 50,000 cs. |