4 Color Process Screen Printing is probably the most complex of the printing processes and is recommended for automatic presses only. Fully automatic T-shirt presses work better than manual presses, which use a combination of four colors, cyan, magenta, yellow, and black, to reconstruct the full color and color range of the original image. Each color printer is a halftone of the opposite color in the original image. 4-color printing is a great way to design T-shirts. 4-color printing involves four basic colors cyan, magenta, yellow and keys or black, so 4-color printing is also known as the CMYK printing process. Benefits of 4 Color CMYK Printing There is an extensive list of benefits for 4 color printing. One major advantage that cannot be overlooked is its cost effectiveness. Using less colors allows for a more inexpensive process. Additionally, another benefit includes how the process is specific for light colored, white clothing materials. Not all other methods of p...