Biopigment Tracing of Mangrove Rhizophora mucronata Leaf and Bark Waste and Its Application for Batik Dyeing by Multiple Fixations

Abstract

The purpose of this research is to determine the pigments in the bark and leaves of mangrove (Rhizophora mucronata), to analyze rate of color fastness in batik, level of consumer interest, and most effective pricing for the resulting batik products. This research focused on the leaves and barks of mangrove plants. The leaves and barks were extracted to be used as dyeing agents, after which the batk fabrics were fixated using alum, limestone, and lotus. This descriptive research employed UV-Vis spectrophotometry to identify pigment and Adobe Photoshop computer program to perform color fastness analysis. The result showed that chlorophyll is a pigment associated to the blackish-green hue was tannin, and that which was associated with red was flavonoid and quinone. The various colors were applied in batik dyeing process, which resulted in a range of color from yellow to dark brown. Colorfastness test of batik dyed with mangrove-derived pigments on wash air dry, wash press dry, and wash sundry using calico as fabric showed that alum and limestone fixated fabric had the least color fastness, while conversely, lotus-fixated fabric displayed good color retention.