A - Human Necessities – 61 – K
Patent
A - Human Necessities
61
K
167/301
A61K 8/73 (2006.01) A61K 8/81 (2006.01) A61Q 5/04 (2006.01)
Patent
CA 1216242
ABSTRACT OF THE DISCLOSURE A process for the selective permanent shaping of regrown hair, in which process the hair is treated with a liquid aqueous preconditioning agent, wound on rods, treated with an aqueous reducing permanent shaping agent, rinsed, oxidatively set and further treated in a conventional manner, the precon- ditioning agent and the permanent shaping agent being so selected that upon contact with each other they form a separating layer on the surface of contact (uppermost layers of the wound hair) whereby further penetration of the permanent shaping agent into the lower layers of the wound hair is rendered difficult or prevented. Suitable combinations are, for example, preconditioning agents containing either a high-polymer polycarboxylic acid polymer with at least 25 molar % of these polymers consisting of monomer units having a free carboxylic acid group, or a water-soluble aluminium salt in combination with an alkaline permanent shaping agent.
445524
Hoch Dietrich
Konrad Eugen
Wajaroff Theodor
Marks & Clerk
Wella Aktiengesellschaft
LandOfFree
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