Abstract

PROCESS OPTIMIZATION FOR EXTRACTION OF NATURAL DYE FROM M. PHILIPPINENSIS FRUITS AND ITS APPLICATION ON DIFFERENT FABRICS

Rakesh Kumar* and Y. C. Tripathi and Prasoon K. Kaushik

Abstract

The present study was aimed at optimizing conditions such as material to liquor ratio (MLR), alkalinity of the extractant and extraction time for maximum extraction of natural dye from M. philippinensis fruits. The extracted dye was applied for dyeing different kinds of fabrics including silk, wool and cotton and colourfastness of dyed fabrics against various colour-fading factors including light, washing, rubbing, perspiration, etc. was determined. Also, CIE L*, a*, b*, C*, h0 and K/S values were studied by standard methods. Based on the highest optical density, the optimum conditions, MLR (8.5 g/100 mL), alkali content (sodium carbonate 0.3 g/100 mL) and extraction time (70 min) for dye extraction was determined. Extraction of dye with optimized parameters resulted in significantly high i.e. 12.8% recovery of natural dye from the plant as compared to conventional method. Further, different types of dyed fabrics exhibited high fastness score in the range of 4-5 that signifies their very good to excellent colourfastness property. The research outcome may contribute to the scale-up of M. philippinensis fruits dye production and is useful for textile industries. It is also an efficient approach towards natural dye extraction from the plant. M. philippinensis fruit dye having high medicinal and antimicrobial activity can be used in production of textiles for medical application and protective clothing.

Keywords: philippinensis, Natural dye, Process optimization, Fabric dyeing, Colourfastness.