Cyanotype
Cyanotype is a photographic method invented in 1842. This technique is characterized by its typical Prussian blue color, and it occurs through an almost alchemical process of contact between the sensitized support and light. At the beginning it was used for the reproduction of maps, planimetries, but later it began to be applied in the artistic field, thanks to the wonderful contribution of Anna Atkins, by many considered the first photographer in history.
Light sensitive chemicals are hand painted onto a sheet of paper and allowed to dry in the dark. The image is created when the plant, flower or leaf is placed on top of the paper and held under a sheet of glass. The paper is exposed to UV light and the chemicals are then washed in water to reveal a blue and white image. Each print is completely unique and it is impossible to replicate the exact color scheme and background texture.
The image is stable and will last for many years, although it is advisable to protect the print from long exposure to strong direct sunlight which can cause it to fade over time.