Cyanotypes are monochrome photographic prints created with an iron salt chemical process first invented in the 1840s. The process was one of the first used to reproduce images for book publication, and was later modified to create architectural "blue prints." It is ideal for creating long lasting, Prussian Blue images.
Each blue photographic print is the result of a labor-intensive, non-toxic process. Two chemical solutions are mixed to create an ultraviolet light-sensitive fluid, which is painted carefully onto high quality watercolor papers in subdued lighting. In sunny weather or under a UV light box, the paper is exposed under a digitally enlarged negative. The exposed paper is developed in water, rinsed thoroughly, and hung to dry.
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