Specialist crafts blue print fabric pack of 30 150 x 150mm sheets an innovative cyanotype fabric that allows designs of all kinds to be exposed directly onto fabric simply place your design onto your fabric these may include leaves flowers lace acetate drawings positive and negative filmsexpose to strong sunlight for 10 20 minutes and then rinse thoroughly to remove the cyanotype from the unexposed areas during winter months use a high wattage bulb ideal for nature projects and bas