PRODUCTION OF COMPOSITION FOR BLEACHING HUMAN KERATIN FIBERS SUCH AS HAIR BY MIXING ANHYDROUS BLEACHING COMPOSITION IN PASTE FORM WITH OXIDIZING COMPOSITION IN THE FORM OF HYDROGEN PEROXIDE OIL-IN-WATER EMULSION BEFORE HAVING EFFECT OF BEING EASILY AND QUICKLY COATED AND EXHIBITING VERY EXCELLENT ADHESION AND POWERFUL AND UNIFORM DECOLORIZING EFFECT

摘要

PURPOSE: A method of making a composition for bleaching human keratin fibers such as hair by mixing an anhydrous bleaching composition in paste form with an oxidizing composition in the form of a hydrogen peroxide oil-in-water emulsion is provided. The composition is easily and quickly coated, exhibits very excellent adhesion and powerful and uniform decolorizing effect and provides cosmetic properties at the same time. CONSTITUTION: The ready-to-use bleaching composition comprises: (i) at least one anhydrous bleaching composition, in paste form, containing 10 to 70% by weight of at least one peroxygenated salt, 0.01 to 40% by weight of at least one alkaline agent, 15 to 35% by weight of at least one inert organic liquid and 1% by weight of water; and (ii) at least one oil-in-water emulsion containing 0.05 to 30% by weight of at least one first surfactant chosen from nonionic and anionic surfactants and 0.005 to 15% by weight of at least one copolymer containing (a) at least one unit derived from a salified or non-salified (meth)acrylic acid and (b) at least one unit derived from esters of (meth)acrylic acid and at least one first fatty alcohol chosen from saturated and unsaturated, linear and branched, ethoxylated C8-30 fatty alcohols. The ingredients (i) and (ii) are mixed before use.