VESICLE PRECURSORS IN THE DYEING OF POLYESTER WITH DISPERSE DYES

The use of double tailed surfactants suitable for the preparation of synthetic vesicles and the resort to sonication for the setting up of dyebaths in the dyeing of polyester fabrics with a disperse dye is proposed. The dye, having excellent fastnesses, belongs to the diethylamino-azobenzene series and has been designed by chemo-metric procedures. In a selected number of experiments, excellent results are obtained from both the points of view of dyebath exhaustion and uniformity of coloration. Further investigation, involving other dyes, additives and substrates, is under study in order to achieve a rational interpretation of these encouraging technical results.