Blueprints On Fabric 8.5" Cotton Cyanotype Squares

Sorry, this item is discontinued. 

These pretreated cotton cyanotype squares from Blueprints allow one to make photographic quality images in white on a blue background, with the utmost ease. The cotton squares have been treated with Potassium Ferricyanide and a ferric salt. When exposed to sunlight the fabric will turn a bright blue color, like a blueprint, except wherever it was covered. So if you put a leaf on top of the square, expose it to light, you will have an image of near photographic detail of the leaf against a blue background.

Blueprints Cyanotype pretreated squares are the easiest sun printing product out there. Just pull out a sheet from the package, cover it with your object/design/etc. expose to sunlight, rinse and dry and you have a nice detailed print.

You can also create photo negatives by printing or drawing images on clear transparency sheets. Just lay the transparency sheet on the piece of fabric and then place a piece of non uv blocking glass or acrylic on top of the transparency to hold the transparency in tight contact with the treated fabric or paper.

Mixed Pack contains four of each color.