Cyanotype photography is a camera-less printing technique, involving the use of a light-sensitive chemical.
The process starts with coating your fabric/paper with the medium, allowing it to dry, before placing your desired objects or film negatives on top and exposing it to sunlight. The UV light triggers a chemical reaction to all exposed areas, turning them blue.
The fabric/paper is then washed with cold water to remove any remaining chemicals, revealing the bright white negative-silhouette.
The use of tumeric or fabric dye is also commonly used in this process to create a range of differnt colours and textures.