Coloring composition for keratin fibres comprising a system limiting the transcutaneous passage of an oxidation dye

摘要

A composition, which includes: a physiologically acceptable medium, at least one orthodiphenol oxidation dye, at least one first component selected from the group including Mn(II) salt, Mn(II) oxide, Zn(II) salt, Zn(II) oxide, and combinations thereof, and at least one second component selected from the group including alkaline hydrogencarbonate, alkaline earth hydrogencarbonate, and mixtures thereof, wherein at least one of the following equations are satisfied: 1 $\begin{array}{c}\frac{\left[\mathrm{Mn}\left(\mathrm{II}\right)\right]}{\left[{\mathrm{HCO}}_3\right]}\le 1\mathrm{with}\left[\mathrm{Mn}\left(\mathrm{II}\right)\right]\ne 0\\ \frac{\left[\mathrm{Zn}\left(\mathrm{II}\right)\right]}{\left[{\mathrm{HCO}}_3\right]}\le 1\mathrm{with}\left[\mathrm{Zn}\left(\mathrm{II}\right)\right]\ne 0\\ \frac{\left[\mathrm{Mn}\left(\mathrm{II}\right)+\mathrm{Zn}\left(\mathrm{II}\right)\right]}{\left[{\mathrm{HCO}}_3\right]}\le 1\end{array}$