Ecoprinting with weed plant: utilization of cacabean (ludwigia octavalvis) and ketul (biden pilosa) as ecoprint natural dyes

Ecoprint is a technique that process the shape and colors of leaves, flowers, and stems into a media namely fabric. In this case, the plants used as ecoprint media are weeds. Weeds are plants that can grow in any place and its existence are often considered as a hinder due to the fact that it can interfere other cultivated plants as well as human activities. The processing of Cacabean (Ludwigia octavalvis) and Ketul (Bidens pilosa) weeds as raw materials for ecoprint natural dyes is one of huge leap in development of textile colorings which also helps increase the value of weeds. The method used for this research is a qualitative method complemented with data collection technique in the form of observation, interviews, and experiments. The result of this research indicates that Bidens pilosa can be utilized as an alternative in the manufacture of natural dyes. The dye produced from this plant can be well absorbed by the cotton fabrics and produces a yellow to brown color, while the Ludwigia octavalvis can be used as a medium for ecoprint with a really clear result and produces black color for the old leaves and green for the younger one.