Cyanotype is an ancient photography technique that provides unique images that cannot be repeated. The procedure consists of sensitizing a sheet of paper with a mixture of chemicals, placing the object to be reproduced on it - in this case they are plant motifs - and leaving it for a while to be printed in the sun or in any another source of ultraviolet light. It is then rinsed with water to remove chemical residues and left to dry in a dark place so that the blue color is revealed with all its intensity. The result is a negative image on a background of a blue color, known as Prussian blue.
