Patent ID: 6302920
Filing Date: 2001-10-16
Classification: A61K,A61Q

Abstract:
A process for bleaching of human hair, consisting of the steps of:a) preparing a pulverulent composition comprisingat least one solid active hair bleaching compound chosen from the group consisting of peroxides, ammonium carbonate, ammonium bicarbonate, ammonium citrate, ammonium chloride and ammonium carbamate; anda pulverulent carrier chosen from the group consisting of silica and starch,b) coating or agglomerating the composition by spraying with at least one melted wax compound, said wax compound having a flow point between about 40 degrees C. and about 130 degrees C., said wax compound being present at about 5-30% by weight of the total composition, said composition having a particle size below 1 mm,such that said composition is substantially free of uncoated or unagglomerated particles, to form a substantially dust-free composition,c) cooling the compositiond) mixing said substantially dust-free composition with a hydrogen peroxide solution at 6-12 wt % to form a mixture,e) applying said mixture to the hair.