Evaluation of Dyeing Behaviour of Three Commercial Cellulosic Reactive Dyes on Nylon 6.6

In order to determine the influence of the shape of the dye molecule on dyeing properties, threemonofunctional monochlorotriazinyl cellulosic reactive dyes, Procion Red H-EXL, Procion Red P-8B and Drimarene Red P-4B were compared. All were derived from 2-amino naphthalene-1-sulphonic acid as diazo compound and H-acid as coupling compound, but the second legsubstituent attached to the monochlorotriazinyl reactive group was varied.