shohre Rouhani - Department of Organic Colorant ,Institute for Colorants . Paint and Coatings (ICPC) , tehran

Ultrasound energy has great potential in industrial processes as it offers reduction in cost , time , energy and effluents . Recently , a revival interest in the use of natural dyes in textile coloration has been growing . This is a result of the stringent environmental standards imposed by many countries in a response to the toxic and allergic reactions associated with synthetic dyes . Natural dyes can exhibit better biodegradability and generally have a higher compatibility with the environment. In this work the dyeing of wool fabric using Rubiaceae Plants as natural dye has been studied in both conventional and sonicator method . the time /dye uptake reveals the enhanced dye uptake showing sonicator efficiency . The results of fastness properties of the dyed fabrics were fair to good.

Ultrasound , Dyeing , Madder