Extraction of natural dye from Osyris quadripartita and application in dyeing of cotton fabrics

Abstract

The uses of non-allergic and non-toxic natural dyes on textile materials have become a matter of significant importance. In spite of much research work being done on natural dye application on textile materials, its performance is not yet satisfactory. This is because their better performance has not been broadly or systematically studied. In this investigation, an attempt has been made to study the dye-ability of cotton fabric using natural dye extracted from Osyris quadripartita (Qerete) plant. The extraction parameters have been studied to obtain optimum dye extract. Dyeing with and without mordant was conducted. Pre-, Meta- and Post- mordanting techniques were applied. The dyed samples were analyzed in terms of fastness properties. The percentage of loss in moisture content from the plant leaves was 4.7% and the moisture regain was 4.9%. The light fastness obtained from the dyed fabric was 4/5. Similarly, the dry crock fastness for directly dyed cotton sample was 5/5, while the wet crock fastness of direct dyed cotton test result recorded grade was 4/5. Furthermore, the washing fastness obtained was 5/5. The results of this investigation led to the conclusion that direct dyeing without mordant is feasible with the better fastness properties of cotton dyeing with natural dyes.