Hot Extraction of Curcuma xanthorrhiza and its Application as Textile Natural Dyes

Abstract

This study explored the utilisation of Curcuma xanthorrhiza extract as a natural dye for cotton fabric, assessing its effects on colour intensity and colour permanence. The study utilised different mordanting techniques, such as pre mordanting, meta mordanting, and post mordanting, using ferrous sulphate, soda ash, and alum. The colour strength data demonstrated different levels of efficacy, with meta mordanting displaying the most profound and vibrant coloration, followed by post mordanting and pre mordanting. The results exhibited exceptional colour fastness when using ferrous sulphate as a post mordant, whereas pre mordanting and meta mordanting generated very good results. The colour fastness of dyed cotton fabric is directly influenced by the mordanting processes. The sequence of colour fastness, ranging from exceptional to very good, highlights the importance of mordanting in enhancing the stability and durability of the fabric. The interactions of Curcuma xanthorrhiza extract, mordants, and cotton fabric during the mordanting processes is crucial in governing the intensity of colour and its colourfastness. The findings provided useful information on the potential of Curcuma xanthorrhiza extract as a natural dye for cotton textiles, presenting a sustainable and promising alternative in the field of textile dyeing.