New Azo Carboxylic Dyes Derived from Eugenol: Synthesis and Preliminary Application to Polyamide

A series of azo dyes containing eugenol, the major phenolic compound in clove (Syzygium aromaticum) essential oil, was synthesized by coupling reactions of diazonium salts of different amines based on 3-aminobenzoic acid with eugenol. The new eugenol-based azo dyes were fully characterized by the usual analytical techniques and used in preliminary reactive dyeing tests on polyamide fabric to determine the colour fastness and staining under domestic washing conditions. The results obtained revealed the potential of these dyes for applications in the textile area.