September 14, 2012

Colors: Process Colours

What is process color printing?

The process color printing is a technique for color printing based on the superposition of the primary colors cyan, magenta, yellow and black.

The image is separated on four plates and the press prints the four colors successively. Tiny dots are printed in each color, depending on the composition of the image. Since the inks are transparent, the superposition points create the colors. This method allows an unlimited number of printed colors.



The magazines are a good example of color printing.

If you look at a color photo with a magnifying glass, can see the lines of dots in cyan, magenta, yellow and black that make up the image. Those lines are printed at different angles and the more lines per inch there is, the better the quality of the image is.