Keratin fibers i.e. hair, permanent deformation i.e. curls, process, involves applying ultra sonic waves on keratin fiber, and processing keratin fiber under mechanical stress/power using shaping device

摘要

The process involves applying a reducing composition containing reducing agents selected from non-sulphur reducers, protected thiols, sulphites, bisulphites or sulphuric acid derivatives to keratin fibers. The fibers are rinsed and fixed by oxidation. Ultra sonic waves are supplied by a generator to provide mechanical vibration of frequency ranging between 20 kHz and 1000 kHz. The waves are applied on the fibers that are processed under mechanical stress/power using a shaping device.