This chapter focuses on the paper that is especially suitable for risograph printing. Other topics include illustrating papers that are not suitable to print on, to what extent the right direction of rotation plays a role, and what considerations should be made when choosing paper.
Even in times of tablets, e-mail and smartphones, the global production of paper and cardboard stood at approximately 420 million metric tons in 20181, compared to 390 metric tons back in 2007.2 According to the German Pulp and Paper Association, Germany produces about 22 073 tons of paper every year.3 Besides being used for packaging and consumables, the scope of application extends to magazines and books. There is still a difference in how printed publications are haptically perceived in contrast to digital ones. It goes without saying that printed information, not only regarding education, is absorbed more easily. High quality paper is of utmost importance especially for publications printed with a risograph. Furthermore, a delicately designed publication printed with extravagant colours emphasises the importance of printed products available in physical form. About 9500 tons of the paper being used up in Germany every year are so-called “graphic papers”. That equals 43%, which is slightly below the world average of 43%.4 The main requirements of graphic papers are tear resistance, printability and good colour reproduction, which is why they are mainly used for printing newspapers and books. Graphic papers can be divided into two classes: wood-free papers and wood-containing papers. Wood-free papers are mainly composed of pulp and may contain a maximum of 5% woody fibres, while wood-containing papers consist of different percentages of mechanical pulp, turn yellow faster and are therefore more likely to be used for fast-moving products such as newspapers.5