ABSTRACT
Abstract: Basic dyes possess basic group in structures which enables to react with acidic group of fibres like basic dyeable acrylic and cationic dyeable polyester in addition to dyeing of wool, silk and nylon forming ionic linkage. Dyes possess high tinctorial value, soluble in mild acidic bath and shades are brilliant. Except on polyacrylonitrile (PAN), basic dyed textile shows poor light fastness as well as moderate wash fastness. Ability to react with anionic dyes extends use of basic dyes in topping on direct dyed textile.
