| abstract |
PURPOSE: To lighten color of hair rapidly without any damage of hair by contacting hair with an alkaline aqueous solution containing a metallic salt and then with an alkaline aqueous solution of 5,6-dihydroxy indole to treat with H 2 O 2 according to a color lightening degree. n CONSTITUTION: There are equipped with multiple vessels in a single package, that is, a first vessel to include a solution with an alkaline pH containing an effective amount of metal (for example copper sulfate) which promotes melanine formation, a second vessel to include a solution with an acidic pH containing an effective amount of 5,6-dihydroxy indole and to keep a vapor space of non- oxidative gas above the solution, a third vessel to include an alkaline reagent and a fourth vessel to include a solution of hydrogen peroxide. Furthermore, the vapor space in the second vessel has a volume sufficient to receive the third vessel or a content of the third vessel inside. By using the treating agent, hair can be lightened rapidly without any damage of hair. n COPYRIGHT: (C)1990,JPO |