Composition for bleaching and simultaneously dyeing keratin fibers, comprising meta-substituted ortho-nitroaniline
A technology of o-nitroaniline and keratin fibers, which is applied in the directions of cosmetics, hair care, cosmetic preparations, etc., can solve the problems of unsatisfactory chromaticity, fastness and stability, etc.
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[0123] HC Yellow 10 was dissolved in an aqueous alcoholic solution (80 / 20) at a concentration of 3.5 g%. Activator A was thus obtained.
[0124] To this solution was added a mixture of Platine Precision B powder containing 51.5% sodium, potassium and magnesium persulfate, and 4.2% sodium silicate and ammonium chloride mixed with 40 volumes of aqueous persulfate just before use. A mixture of oxidizing agents E consisting of hydrogen peroxide compositions. Bleach powder B / oxidizer E / activator A mixture is 1 / 2 / 0.5 respectively.
[0125] A portion of this mixture was applied immediately to a 1 gram strand of natural hair containing 90% white hair, and also to a 2.7 g strand of natural chestnut brown hair.
[0126] The remaining mixture was applied after 20 minutes to a 1 gram strand of natural hair containing 90% white hair and to a 2.7 g strand of natural chestnut brown hair.
[0127] In all cases the conditions are the same. The liquid ratio is equal to 10.
[0128] After l...
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