Novel dyes, azo, their process of production and their applications, dye

摘要

P the invention relates to the chemistry of the dyes. / p & & p & it relates to novel dyes, azo and their method of production by diazotation of aromatic amines, and then to coupling in acid medium with naphthalene couplers, but preferably with the acid, in aqueous or aqueous organic - / p & & p & azo dyes of the invention are suitable for dyeing natural and synthetic fibrous materials. / p