Disclosed is a two-pack type hair dye product which is composed of a first preparation containing an alkali agent, a second preparation containing hydrogen peroxide, and a non-aerosol foamer container for discharging the liquid mixture of the first preparation and the second preparation in the form of a foam. The liquid mixture contains the following components (A) and (B).(A) a polymer or copolymer which has a mole fraction of diallyldimethyl quaternary ammonium salt monomer of not less than 70%(B) an N-acylamino acid salt, an N-acyl-N-alkylamino acid salt or an ether carboxylic acid saltThe equivalent ratio of the anion site of the component (B) to the cation site of the component (A) (anion/cation) is more than 1, and the liquid mixture has a viscosity at 25˚C of 1-300 mPa·s.
