PROCESS FOR STRAIGHTENING THE HAIR
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United States of America Patent
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Issued Date -
Mar 5, 2015
app pub date -
Aug 27, 2014
filing date -
Aug 30, 2013
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Abstract
The present invention provides methods for simultaneously colouring and straightening the hair, for straightening the hair directly before or after a colouring treatment, and for straightening the hair directly before or after a bleaching treatment. Besides, the present invention also provides a method for straightening the hair by drying the hair with hot air under conditions of mechanical tension. The straightening methods of the present invention utilize compositions containing formaldehyde.
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