The Utilization Of Kudo Bark (Lannea coromandelica) As The Source Of Natural Dye In Dyeing Of Silk Batik

Exploration of various types of plants that are the largest source of natural dyes
has begun to developed. Study on the utilization of Kudo (Lannea coromandelica) as a
natural dye for silk batik had been conducted. Extraction of natural dye was carried out
using water with a temperature at 100 °C. The coloration was applied to silk batik at both
acidic (pH 4) and basic (pH 10) conditions using alum and ferrous sulfate as the mordants.
The results indicated that kudo bark has the potential to be used as a source of natural dyes
for silk batik. The highest color strength was obtained by using kudo bark extract under
basic condition with the presence of ferrous sulfate. The obtained color shades for acid
conditions with ferrous sulfate fixative, acid conditions with alum fixative, base conditions
with alum fixative and base conditions with ferrous sulfate fixative, were dark brown, light
brown, beige, and reddish brown, respectively. The results of fastness properties of the dyed
fabric were good (4-5).