Compostable, Hydrophobic and Moisture Resistant Plant Oil-based Bio-resin as an Alternate to Plastic Liner

The National Institute for Interdisciplinary Science and Technology (NIIST) has developed a bio-resin made from plant oil for coating on different substrate to replace plastic liners in packaging industries.

The plant oil sourced bioresin can be coated on paper, biopolymer and cellulosic substrates for making compostable packaging products (bag, cup, plates, take away containers, barrier packaging products) that are eco-friendly, biodegradable, microwave-friendly. Some of the advantages of these bio-coated products are non-toxic, moisture barrier (90% reduction in WVTR), water retention, improvement in strength, shelf life extension and aesthetic look. This bio-resin coating will have enormous potential in the national and international market as green and sustainable alternate to plastics, styrene butyl acrylate latex, and aluminium coating. This bio-resin coating is hydrophobic and moisture-resistant with repulpability potential and also meets standards for fatty food and beverages at both hot and cold temperature. The bio-resin is compostable and does not release any toxic components into the soil. The developed biocoating technology (TRL 6) paved away to replace the non-degradable plastics and other petro sourced resin coating in the field of barrier packaging.

1. Low viscous and Thermally curable @ 30 m/min at 120°C
2. Hydrophobic and Moisture barrier coatings
3. 80-95 % reduction in water vapour transmission rate (WVTR) for paper
4. Thermally stable (> 250 ⁰C)
5. Migration within limit as per USFDA 176.160 and EU 10/2011
6. Compostable within 120-180 days (in vermi compost soil)
7. Coated paper Repulpability (>80 % recovery)