Page 28 - HAIR COLOUR
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hydrogen caps on the disulphide bonds and come of as H2O (water).
Leaving the disulphide bonds free to permanently join with the nearest
broken disulphide bond, (when the curlers are left in until the hair is dry).
holding the hair in its new permanent formation.
This process is known as air neutralisation, it leaves the hair in very good
condition with a strong springy curl, the only down side to this form of
neutralising is that you have to leave the curlers in for 24 hours after
rinsing out the perm lotion.
Chemists, however, invented instant neutralisation by applying a mixture
of peroxide and shampoo right after the perm lotion had been rinsed out,
the hydrogen and oxygen molecules from the hydrogen peroxide mix
together with the hydrogen caps and come of as H2O (water). Leaving
the disulphide bonds permanently joined and realigned.
The only problem with chemical neutralisers is that hydrogen peroxide
once applied to the hair never stops working, until it either grows out or is
cut off, which means that colour fading starts to appear after three
months.
Summary:
It is possible to change the hairs natural formation semi-permanently
using just water and any number of styling services such as rollers, finger
waves and pin curls, drying under a hood dryer sets these new formations
semi-permanently. Also blow drying the hair with a round brush from wet
to dry will reform the hair semi-permanently, and most recently using just
heat on dry hair from flat ceramic tongs to straighten hair, or round tongs
to curl dry hair. It is possible to reform hair permanently using
chemicals.
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