Cyanotype Cyanotype is a photographic printing process that produces cyan-blue prints using a light-sensitive iron-based solution. It involves coating a surface, such as paper or fabric, with a mixture of ferric ammonium citrate and potassium ferricyanide, then exposing it to ultraviolet light to create a chemical reaction that results in a blue image. Cyanotype printing is valued for its distinctive blue tones, simplicity, and versatility, and it is often used for artistic purposes and alternative photographic techniques. |