Photo imaging was developed in Italy around 10 years ago. The process involves the reaction between special inks and a polyurethane or polyester powder coating when placed under controlled conditions. Photographic images are absorbed by the coasting with the correct heat and temperature.
After the coating is applied to the metal, it’s wrapped with the film that holds the surface pattern and vacuumed shut to ensure full contact. Then the entire object is heated to 200 degrees Celsius, which causes the ink to run into the metal and transfer the photographic image, creating an attractive finish.