Erasable hair dyeing process

Bleaching and dyeing; fluid treatment and chemical modification – Dyeing involving animal-derived natural fiber material ,... – Hair dyeing

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8405, 8426, 8565, 8574, 8654, 8655, 8657, 8658, 8659, A61K 713

Patent

active

054745780

ABSTRACT:
A hair fiber having a first color is contacted with a dye having the formula I, formula II, formula III or a mixture thereof whereby the fiber has imparted to it a second color, upon subsequent contact with alkaline peroxide the visual appearance of the first color is restored to the fiber.

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Dyes and Pigments, "Photofading of Basic Triphenylmethane Dyes: Evidence for Electron Transfer", 1981, pp. 31-35, Allen et al.

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