Neth. Patent 6,614,227 Human hair is dyed with a solution of 2-methoxy-5-nitro-1-4-phenylenediamine in water. Dissolve 0.5 parts of the diamine in 2 parts of alcohol and add the solution to 91.5 of water containing 6 parts of wetting agent. Blond, bleached, or gray human hair is dyed a strongly reddishbrown color at room temperature and the dye has excellent resistance to moisture. A number of solutions are prepared containing 0.2 to 4% of mixtures of various amounts of Disperse Blue 23 and 2-nitro-p-phenylenediamine with the methoxynitro-phenylenediamine. Human hair dyed with the solution prepared at room temperature gives colors that are more natural