2

Color

This chapter deals with the color used for risography. What are special features in the composition, how big is the color palette of the Risograph and how do color separations work? Finally, it explains how color profiles can be created for the Risograph.

The Risograph uses an emulsion ink of a mixture of oil and water bases. 1. Emulsion (lat. Ex and mulgēre, “milked out”) is a process in which an emulsifier is used to combine two incompatible substances, a finely divided mixture of two normally immiscible liquids with no visible segregation. Examples of emulsions are a variety of cosmetics, milk, mayonnaise, or even soybean oil. [Note]Emulsion, from Wikipedia, the free encyclopedia, https://en.wikipedia.org/wiki/Emulsion, accessed on February 28, 2017[/note]

  1. Ink development technology, https://www.riso.co.jp/english/tech_portal/core/ink.html, accessed on February 28, 2017