Wulan Tiara Puspitasari Widyatama University
This innovation introduces AMARWA ECO, an eco-friendly decorative acoustic insulation panel grounded in double circular economy principles. The product integrates waste denim fibers as the primary damping matrix and organic food waste, including coffee grounds, mangosteen peels, and avocado seeds, as non-toxic natural dyes. Incorporating Nusantara batik motifs converts conventional insulation materials into artistic interior decorative elements. Empirical testing demonstrates high acoustic efficiency, achieving a 25.20 dB sound reduction at 2,000 Hz and an absorption coefficient of 0.75, equivalent to glasswool, while remaining volatile organic compound-free. Sustainable waste processing yields culturally valuable, economically viable products that support Sustainable Development Goals.
Keywords: Circular Economy, Waste Denim, Natural Dyes, Acoustic Panel, Nusantara Batik