Ploysai Ohama and Nattida Tumpat
Textile Dyeing with Natural Dye from Sappan Tree (Caesalpinia sappan Linn.) Extract
432 - 434
2014
8
5
International Journal of Materials and Textile Engineering
https://publications.waset.org/pdf/9998325
https://publications.waset.org/vol/89
World Academy of Science, Engineering and Technology
Natural dye extracted from Caesalpinia sappan Linn. was applied to a cotton fabric and silk yarn by dyeing process. The dyestuff component of Caesalpinia sappan Linn. was extracted using water and ethanol. Analytical studies such as UV–VIS spectrophotometry and gravimetric analysis were performed on the extracts. Brazilein, the major dyestuff component of Caesalpinia sappan Linn. was confirmed in both aqueous and ethanolic extracts by UV–VIS spectrum. The color of each dyed material was investigated in terms of the CIELAB (L, a and b) and KS values. Cotton fabric dyed without mordant had a shade of reddishbrown, while those postmordanted with aluminum potassium sulfate, ferrous sulfate and copper sulfate produced a variety of wine red to dark purple color shades. Cotton fabric and silk yarn dyeing was studied using aluminum potassium sulfate as a mordant. The observed color strength was enhanced with increase in mordant concentration.
Open Science Index 89, 2014