The use of laban (Vitex pinnata L) leaf as a silk pigment

Abstract

Abstract Synthetic dyes are usually carcinogenic, therefore it is necessary to use alternative dyes to reduce the use of synthetic dyes, namely by using natural dyes. This study aims at determining the potential of Laban leaves as a natural dye in silk fabrics. Extraction was done by boiling the leaves for 1 hour. The dyeing of the mordanted cloth was done 4 times. The dyed fabrics were treated with post mordanting using alum, calcium oxide and tunjung with a concentration of 50gr/l. Fabric testing was carried out by testing the color strength and color fastness to washing with soap. The results of the color strenght test showed that the highest value was obtained by the use of tunjung with a T% value of 88.96 for very dark criteria, then followed by calcium oxide mordant with a value of 30.20 and the lowest value on the use of alum mordant with a value of 20.97 for light criteria. The color fastness test to washing generated an average value of 4 which was in the good category.