Cyanotype is an old photographic process.
When applied to a porous surface — most commonly heavyweight watercolour paper, cotton fabric or wood — this solution makes the surface light-sensitive once it has dried in the dark.
Cyanotype is an old photographic process.
When applied to a porous surface — most commonly heavyweight watercolour paper, cotton fabric or wood — this solution makes the surface light-sensitive once it has dried in the dark.