FLORAL Cyanotype backgrounds

Cyanotype, also referred to as "blueprinting", is the oldest non-silver photographic printing process. It involves exposing materials which have been treated with a solution of potassium ferricyanide and ferric ammonium citrate to a UV light source such as the sun. Negative or positive images can be obtained by blocking UV light from reaching the sensitized material. For example, a negative image can be produced by placing a leaf upon paper treated with this solution and exposing to sunlight for 10 to 20 minutes. The paper will retain the image of the leaf after it has been rinsed with water. Once the paper dries, parts that were exposed to the sun will turn a shade of Prussian blue (ferric ferrocyanide), while parts that were covered by the leaf will remain white. ----------------------- This pack includes 27 different floral cyanotype backgrounds that would be perfect for any kind of paper stationery, posters, postcards, notebooks, book or magazine covers, etc.  - This pack included .PSD document with full editable layers to change the color or brightness. Is it mean, you can change the blue color for any what you need. Just add your file to smart object. - Also, this pack included .PSD file with double exposure effect. Just open the file, add your photo and background texture to smart object and get the crazy graphic for your projects - t-shirts, posters, or anything else.  - BONUS: .PSD File with some individual floral object for decorate your texts or graphic. ------------------------- All backgrounds are HQ TIFF with 450 dpi and have a 4680x6946 for all files.