The present work aims to investigate and develop a series of monoazo dyes containing carboxyl group and hydroxy group for the PTT, wool, PTT /wool blends fabrics, These dyes were obtained by the coupling of diazotised 2-aminophenol, 3-aminophenol and 4-aminophenol with 2,3-dihydroxynaphthalene, 3-hydroxy-l-naphthoic acid, 3-hydroxy-2-naphthoic acid. These dyes were dyed on PIT; wool, PTT/wool blend fabrics and their dyeing and fastness properties were evaluated. The fastness properties of all the dyeing samples except dyeA series were in accord with commercial requirements.
