Re: Color/oil


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Posted by Catherine Cartwright Jones on August 23, 2002 at 00:45:57:

In reply to: Color/oil posted by Scooter on August 23, 2002 at 00:23:21:

: One thing on color, red and green make black, with almost
: any medium, try a drop or two of each in food coloring in your
: batches..it might give you the darker color your looking for.

The molecules in food dye coloring are too large to easily penetrate
the skin, therefore are mostly useless in making henna dye dark. Some
red dyes will make a shallow penetration, but the green molecule is
larger, so would penetrate poorly and certainly NOT make the henna go
darker. Dye is "not almost any medium". Dye has some unusual
characteristics: it must bind with the molecules of the medium
(keratin in this case), rather than lay on top of it (as paint does).
In addition, dying skin cells requires that the dye molecule breach
and penetrate the skin cell .... so the molecules must be very tiny,
and those are few and far between. Skin is easy to paint, difficult
to dye.

You might want to have a look at the link below to more clearly
understand what clove and suchlike are doing, and how monoterpenes
oxidize henna to darker colors though not having dye properties in and
of themselves.

 


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