How does offset printing work?

This technique is based on a simple working principle, which is not to mix water and ink, after placing the images on metal sheets made of aluminum, the ink is distributed to the plates through a number of rolls, where the plates are moistened first with water rolls and then with ink rolls so that the ink is spread in the image area on the plate while Water remains in the surrounding area of ​​the plate.

Offset printing is based on a four-color system known as CMYK
C stands for Cyan and is a color in the blue spectrum.
M stands for Magenta and is a color in the region between red and blue.
Y stands for Yellow and is yellow.
K stands for Key, which is black.

All the colors that appear at the end are due to the use of only these four colors.b