I recently read that most hair pieces using human hair are colored using fabric dyes at the factories and in order to get the best results bleaching the knots, fabric dye remover should be applied to the knots prior to bleaching. This sounds intriguing to me as maybe less bleaching time would be needed with this method and if fabric dye remover is less harsh on hair then bleach, the life of the hair piece might possibly be prolonged with even better results then the traditional bleaching method. Has anyone ever done this?