This printing process uses only four ink colours - Cyan, Magenta, Yellow and Black. This process can be used when there is half tones, or a photographic image.
The four ink colours are layered over one another, using different strengths to create the desired colours in the artwork. Ink colours are printed in the order of their abbreviation.
To get the best CMYK printing results it is best to print on white-based products. With this printing process, a Pantone colour match is not 100% guaranteed.