Method of producing a cosmetic abrasive

Details Method of producing a cosmetic abrasive Method of producing a cosmetic abrasive

C - Chemistry, Metallurgy

09

K

C09K 3/14 (2006.01) A61K 8/97 (2006.01) A61Q 19/10 (2006.01) A61L 2/16 (2006.01)

Patent

CA 2629563

The invention relates to a method of producing an abrasive substance, where natural kernels, shells, fruit skins and/or seeds are ground to give a flour of defined particle size, the flour is treated in aqueous suspension with at least one bleaching agent, in which the addition of the bleaching agent takes place in two steps, where, in the first step, at least 40% by weight to 90% by weight of the total amount of bleaching agent is added and the flour is sterilized in the acidic medium and, in the second step, the lightening and degreasing of the flour is brought about by the simultaneous metered addition of the remainder of the bleaching agent with an alkali solution in alkaline medium, and its use in cosmetic preparations.

L~invention concerne un procédé de fabrication d~un matériau abrasif, selon lequel des pépins, des épluchures, des écorces de fruits et/ou des graines naturels sont moulus en une farine d~une taille de grain définie, ladite farine étant traitée dans une suspension aqueuse avec au moins un agent blanchissant, l~ajout de l~agent blanchissant étant réalisé en deux étapes. Lors de la première étape, au moins 40 à 90 % en poids de la quantité totale d~agent blanchissant est ajoutée et la farine est stérilisée en milieu acide. L~éclaircissement et le dégraissage de la farine sont réalisés lors de la seconde étape par ajout simultané de la quantité restante d~agent blanchissant et d~une solution alcaline en milieu basique. L~invention concerne également l~utilisation de ce procédé pour des préparations cosmétiques.

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