YMCKF-KT consists of yellow (Y), magenta (M) and cyan (C) panels for printing a full spectrum of colors on to PVC/Composite ID card stock. The (K) panel is a black resin panel, typically used for printing in monochrome (barcodes, text, serial numbers, bold black graphics, etc.) The (F) panel is a fluorescent UV panel that is utilized to print fields (text, images, etc.) that are only visible under ultra violet light. In a Datacard YMCKF-KT style ribbon an additional (K) black resin panel is present followed by a (T) Overlay to allow for dual sided printing (Full color front/monochrome black back).