Riso duplicator is an office machine originally designed for high-volume document copying. However, thanks to its unique properties and eco-friendliness, it has found a second life in independent art publications.
Because Riso machines were initially created for single-color text printing, printing multicolor artwork introduces distinctive quirks—like misregistration, uneven ink coverage, and characteristic imperfections. As a result, each print is unique, showcasing subtle differences that add an artistic charm.
Riso printing process resembles traditional screen printing, with colors layered sequentially onto the paper. The inks used are oil-based and semi-transparent, and the stencils have a halftone pattern. This combination allows the simulation of tonal images despite a limited palette.
Additionally, Risograph printing is very environmentally friendly—it consumes less water and fewer chemicals compared to traditional screen printing. Both the inks and the stencils are made from recycled materials, such as rice bran and soybean or rice oils.