Research Article
Extraction of Natural Dye from the Root of Rumex Abyssinicus for Textile Dying Application
@INPROCEEDINGS{10.1007/978-3-030-80621-7_6, author={Melkamu Birlie Genet and Asres Mekonnen Admas and Animaw Gerem Abeje and Felegush Enyew Melese}, title={Extraction of Natural Dye from the Root of Rumex Abyssinicus for Textile Dying Application}, proceedings={Advances of Science and Technology. 8th EAI International Conference, ICAST 2020, Bahir Dar, Ethiopia, October 2-4, 2020, Proceedings, Part I}, proceedings_a={ICAST}, year={2021}, month={7}, keywords={Rumex Abyssinicus Natural dye Mordant Cotton fabric}, doi={10.1007/978-3-030-80621-7_6} }- Melkamu Birlie Genet
Asres Mekonnen Admas
Animaw Gerem Abeje
Felegush Enyew Melese
Year: 2021
Extraction of Natural Dye from the Root of Rumex Abyssinicus for Textile Dying Application
ICAST
Springer
DOI: 10.1007/978-3-030-80621-7_6
Abstract
Dyes extracted from natural sources have emerged as important substitutes to synthetic dyes. In this study, an environmental friendly natural colorant was extracted from the root of Rumex abyssinicus (Mekmeko) by using an aqueous extraction method. The effect of temperature and pH on the extraction of natural dye was studied and the best condition for dye extraction was obtained at pH 10 and temperature of 80 °C. UV-VIS absorption spectrum indicates a λmax peak at 280 nm and this value is associated to anthraquinone dyes. Structural characterization by FT-IR revealed the presence of chromophores compounds like C=O, OH, -C=N- and C=C of aromatic. The coloring potential of the extracted dyes has been studied using selected mordant types, pH, and dyeing techniques. The simultaneous mordanting method at acidic media and iron sulfate mordant type shows very good (4) and very good to excellent (4–5) grade colorfastness characteristics to washing and rubbing.
