Cyanotypes

Cyanotypes are prints (like blue-prints) that are made from a negative image, light exposure, and chemicals on a mostly cotton paper. 


Materials List:

• 25 grams Ferric ammonium citrate
• 10 grams Potassium ferricyanide
• 3 Glass containers 
• Graduated cylinder for measuring
• Plastic spoons
• Gloves
• Scale (for measuring chemicals)
• Paint brush
• (Mostly) Cotton paper or fabric to print on
• Glass to cover cyanotype  

Cyanotypes are done by the following process :

1. Create a negative image of a  photograph and print it out on a transparent paper.
2. Mix the chemical solution to be brushed onto the cotton paper. The chemicals are mixed together in equal parts.
1. 25 grams Ferric ammonium citrate (green) and 100 ml. water
2. 10 grams Potassium ferricyanide and 100 ml. water.
3. In a really dimly lit or dark room, brush the chemical solution onto the paper with a brush and leave it in total darkness to dry.
4. Place the negative on top of the paper and place a piece of glass over that to hold it together.
5. Expose the cyanotype to light (either the sun or a UV light) 
6. After it has been exposed, rinse the print in cold water until the water runs clear.