Content
8 Postcards (13.5cm x 10cm), Wooden Stand, Cyanotype Solution A & B, Plastic Sheet, Clamps, Paintbrush, Paper Tray, Dried Leaves
How does it work?
When exposed to the UV light of the sun, a chemical reaction occurs and the postcard changes colour. Use pressed leaves to create unique botanical artworks, or get creative with anything that casts a shadow. Prints are made by placing leaves over the postcard to block out the light. When the postcard is washed, the blocked out areas become white, and the areas exposed to light become a deep blue.
How to make
Step One – Chemicals Mixing and Application
– Mix equal parts of Solution A and B to make a working sensitizer emulsion in yellowish-green color.
– Place the postcard over one plastic sheet
– Coat the emulsion using the brush onto the area of postcard you want, and then leave it to dry or use dryer to help.
Step Two – Print Design
– Lay around with the pressed leaves or anything you want your design to look like.
– Once you find the design you like, cover your design with another plastic sheet and use the clamp to fix the position.
– You might also use a maker writing any words to cast shadow onto the plastic sheet.
Step Three – Sun Exposure
Place the postcard under sunlight for 5-15 minutes.
Step Four – Color Fixation
Remove your design from the paper and rinse the postcard until water runs clear. Hang it to dry and beautiful works are done!
