Natural Medicine Institute of Zhejiang Yangshengtang Co., Ltd.
|Natural Medicine Institute of Zhejiang Yangshengtang Co., Ltd. Patent applications|
|Patent application number||Title||Published|
|20120132225||HAIR DYEING AGENT, HAIR DYEING PRODUCT COMBINATION, AND ITS USE METHOD - A hair dyeing agent, a combination of the hair dyeing agent and a softener for dyeing hair and the method of using the combination are disclosed. The hair dyeing agent comprises a dye active, a mordant active, a stabilizer, water, and a carrier and/or an excipient. The dye active is selected from gallic acids, salts and esters thereof and their combinations. The mordant active is a ferrous salt selected from ferrous sulfate, ferrous chloride, ferrous nitrate, ferrous gluconate, ferrous lactate and ferrous fumarate.||05-31-2012|
|20120037178||MORDANT AND HAIR COLORING PRODUCTS CONTAINING THE SAME - The present invention relates to a mordant for hair dyeing and a hair dyeing product comprising the mordant. The mordant of the present invention comprises an effective amount of a ferrous salt, antioxidant and water; the hair dyeing product of the present invention comprises three parts: a softening agent, a dyeing agent, and the mordant. The mordant and the hair dyeing product comprising the mordant as provided by the present invention do not contain thioglycolic acid, aromatic compounds such as p-phenylenediamine and hydrogen peroxide, and are safe and free of irritation. The hair dyeing product of the present invention has good chromaticity and fastness as well as good product stability and convenience in usage.||02-16-2012|