Alternative mordants for wool dyeing using leaves of Punica granatum and Lantana camara

Application of bio-mordants in fabrics dyeing is a sustainable and ecological way to preserve the environment from textile industries wastes.Considering the use of potential plant-based mordants as an alternative to metallic mordants, this study deals with the comparison between the use of Punica granatum and Lantana camara leaves and alum as mordant.Two different mordanting techniques namely simultaneous and post mordanting were applied along with the dyeing process using leaves of Psidia altissima as source of dye.It is a Malagasy endemic plant species commonly used by craftsmen to get green color on silk.Few tests were carried out in order to evaluate the fastness and fixing properties of the involved mordants on wool knitted fibers.The washing fastness of the dyed and mordanted samples were assessed by comparing their color coordinates.The results from this study showed that leaves of Punica granatum and Lantana camara can be used in natural mordanting process to dye wool in range of green to brownish color with Psiadia altissima dye.Their wash fastness values are more interesting compared to alum.Thus, processes from this study will conduct to an ecofriendly technology of textile dyeing.