DEVELOPMENTS IN DYEING TECHNOLOGY-BASED ON MICROEMULSION SYSTEMS

Microemulsions, or their precursors, are proposed for improving the qu ality of dyed fabrics. The investigated substrates are polyamide (nylo n 6 and 6.6), polyester, and a secondary cellulose acetate-nylon 6 ble nd. Besides conventional fibers, also nylon 6 and polyester microfiber s are studied. It has been possible to ascertain that suitable organiz ed systems allowed to obtain a better uniformity of coloration without depressing dyebaths exhaustion. Furthermore, in some cases, satisfact ory results have been obtained at halved liquor ratios with consequent energy saving during the tinctorial cycles.