| CPC A61K 8/41 (2013.01) [A61K 8/19 (2013.01); A61K 8/345 (2013.01); A61K 8/732 (2013.01); A61Q 5/04 (2013.01); A61K 2800/48 (2013.01); A61K 2800/805 (2013.01); A61K 2800/88 (2013.01)] | 8 Claims |
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1. A process for perming keratin fibers comprising:
a) putting keratin fibers under mechanical tension on a curler or a roller,
b) applying a non-reducing, non-oxidizing alkaline composition onto the keratin fibers, wherein the non-reducing, non-oxidizing alkaline composition has a pH ranging from 7 to 12, a viscosity ranging from at least 10,000 mPas and no more than 40,000 mPas, and comprises:
i) one or more alkalizing agents at a total concentration ranging from 0.1% to 10% by weight, calculated to a total weight of the non-reducing, non-oxidizing alkaline composition, wherein the one or more alkalizing agents comprise at least one selected from: ammonia and/or its salts; and aminomethyl propanol, monoethanolamine, diethanolamine, tris-(hydroxymethyl)-aminomethane, and/or at least one of their salts,
ii) one or more thickening polymers at a total concentration ranging from 1% to 3% by weight, calculated to the total weight of the non-reducing, non-oxidizing alkaline composition, wherein the one or more thickening polymers comprise a thickening polymer selected from the group consisting of:
an acrylate anionic thickening polymer or a mixture of one or more acrylate anionic thickening polymers, wherein the one or more acrylic polymers are selected group consisting of acrylates/c10-30 alkyl acrylate crosspolymer, acrylates/steareth-20 methacrylate copolymer, acrylates/stearyl acrylate/dimethicone methacrylate copolymer, acrylates/beheneth-25 methacrylate copolymer, and acrylates/lauryl acrylate/stearyl acrylate/ethylamine oxide methacrylate copolymer;
a non-ionic thickening polymer selected from the group consisting of methyl cellulose, ethyl cellulose, hydroxyethylcellulose, methylhydroxyethylcellulose, methylhydroxypropylcellulose, and a mixture thereof;
a cationic thickening polymer selected from the group consisting of Polyquaternium 6, Polyquaternium 16, Polyquaternium 37 and a mixture thereof;
and a non-associative anionic thickening polymer or a mixture of one or more non-associative anionic thickening polymers are selected from the group consisting of xanthan gum, dehydroxanthan gum, starch, and hydrophobically modified starch,
iii) one or more organic solvents having two or more hydroxyl groups at a total concentration ranging from 5% to 10% by weight, calculated to the total weight of the non-reducing, non-oxidizing alkaline composition, wherein the one or more organic solvents having two or more hydroxyl groups are selected from 1,2-propandiol, butylene glycol, and/or glycerol, and
iv) a remainder component of the non-reducing, non-oxidizing alkaline composition comprising water,
c) optionally covering the keratin fibers with a moisture barrier,
d) heating the keratin fibers to a temperature ranging from 50° C. to 230° C.,
e) optionally removing the moisture barrier from the keratin fibers,
f) releasing tension from the keratin fibers, and
g) optionally rinsing-off the keratin fibers, wherein a) and b) are executable in either order and/or f) and g) are executable in either order.
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