A4 (210 × 297 mm) A3 (297 x 420 mm) Risograph print, 4 colours Munken Lynx 240gsm (Please note that colours may differ slightly to the photos due to the variations in Risograph printing.) Risograph printing is the most eco-friendly printing process around. It uses resin-free soya and rice-bran oil inks, which are much more bio-degradable than the usual petroleum-based inks. The printer is highly efficient using almost no thermal energy, making it much more energy efficient than laserjet and inkjet printing. Prints are sent without backing or cello wraps.