4 Color Process Imprinted Promotional Products can be printed with your full color logo. Our 4-color process items give you the opportunity to print unlimited colors. There is no need to limit the amount of colors in your imprint. Four Color Process imprinting is a method in which images are reproduced using 4 colors of ink. The four colors are cmyk, which are cyan, magenta, yellow and black. K stands for the key plate or keyline color which is usually black. The colors are printed in layers and in a series of dots. When the colors are combined a full color image is created. Full color items are alternatively digitally printed as well. Digital printing eliminates the need for printing plates. As a result your items can be imprinted with a quick turnaround. Digital print refers to ink-jet and laser printing. 4 Color Process Imprinted Promotional Products Popular 4 Color Process Promotional Items.