Datacard YMCK-K ribbon has five panels for printing high-quality, dual-sided cards. The yellow (Y), magenta (M) and cyan (C) panels are mixed together at different combinations to create a wide range of colors and color variations. The YMC color panels are used to print full-color images on one side of a card. The first black resin (K) panel is for printing black text, images and barcodes on the same side of the card. The second black (K) panel is used for printing additional black text, images and barcodes on the opposite side of the card.