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Halftones and Line Screens

In offset lithography, the density of CMYK inks can not be varied in continuous fashion across an image, so a range is produced by means of halftoning. In halftoning, tiny translucent CMYK ink dots of variable sizes are printed in overlapping grids. Grids are placed at different angles for each of the ink colors. Smaller dots absorb less light making the object appear lighter. Conversely, larger dots absorb more light making the area appear darker.

Halftoning Screen Angles

Halftoning Screens in Action