Just a short video showing the final steps of my cyanotype process. I usually use sunlight to expose my cyanotypes but it was too cold and dreary outside so I used an LED UV lamp for this print.
After exposure the print is taken to a dark room, removed from the printing frame, and washed with tap water. The wash process removed unreacted iron from the dark areas in the negative. This leaved behind the image in Prussian Blue dye. It also renders the image light safe. I usually do 4 rinses in the dark room followed by about 10 minutes of rinsing in the light.
I add a pinch of hydrogen peroxide at the end to bring out the final color. This is not necessary as the print will achieve the same color a day or so after drying. But I like to see the final color right away. This helpful to check I am getting the desired exposure when I am doing a series of prints on the same day.
You can see more of my videos on Vimeo at Vimeo.com/jalanlee