Hair waving and straightening method

Details Hair waving and straightening method Hair waving and straightening method

A - Human Necessities

45

D

167/307

A45D 7/04 (2006.01) A45D 7/00 (2006.01)

Patent

CA 1138340

ABSTRACT OF THE DISCLOSURE A process for the waving or straightening of hair by treating with an alkaline bisulphite and or sulfite preparation followed by neutralizing with hydrogen peroxide is improved by using an aqueous neutralizing solution in which the hydrogen peroxide is present in a concentration of from 0.65 to 3,4% by weight and proportional to the concentration by weight of available sulfur dioxide in the waving/straightening solution used prior to neutralization. The process avoids certain dis- advantages associated with the prior art,

366315

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