A - Human Necessities – 61 – K
Patent
A - Human Necessities
61
K
A61K 7/135 (1995.01)
Patent
CA 2333506
The method and compositions of this invention provide a means of removing dyes from keratin fibers under relatively mild conditions. This dye removal is accomplished through the use of compositions containing bicarbonate salts in conjunction wiht oxidizing agents, such as hydrogen peroxide to remove oxidative dye molecules not only from the surface of dyed keratin fibers, but also dye molecules deposited within the cortex of the fiber. The present invention is especially useful to people who have dyed their hair and wish to return their hair to its original color or for people who wish to have variegated hair coloring.
Cette invention a trait à une technique et aux compositions afférentes permettant de décolorer des fibres kératiniques dans des conditions peu agressives. Cette décoloration est le fait de compositions contenant des sels de bicarbonate associés à des agents oxydants, à du peroxyde d'azote notamment, capables d'enlever non seulement des molécules oxydantes de colorant de la surface des fibres kératiniques colorées, mais également des molécules de colorant déposées dans la couche corticale de la fibre. Cette invention intéresse tout particulièrement les personnes qui, ayant teint leurs cheveux, désirent revenir à leur couleur d'origine ou celles qui souhaitent avoir une chevelure bariolée.
Adair Tony R.
Cowsar Donald R.
Borden Ladner Gervais Llp
Carson Products Company
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