Cyanotypes

Cyanotype is a photographic printing process that produces a cyan-blue print. Originally developed in the early 19th century, it uses two chemicals: ferric ammonium citrate and potassium ferricyanide. When exposed to ultraviolet light (sun light), these chemicals react to form a distinctive blue pigment known as Prussian blue.

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Cyanotype dyed accessories

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Silk scarves and ties dyed with cyanotype technique. The cyanotype technique is a photographic printing process that produces a cyan-blue print, which was discovered in the early 19th century. By placing flowers on the fabric coated with a light-sensitive solution, the sunlight develops the image, leaving a blue print of the flowers after washing.