Modern litho printing involves creating an image in a polymer coating which is then applied to an aluminium plate. The surface of the plate is roughened and manipulated chemically so that some regions are hydrophilic and act to accept water, and repel ink, while others are hydrophobic and act to repel water and accept ink. As a consequence, printing can be done directly from the aluminium plate, resulting in a reversion of the image, or the image can be transferred onto a sheet of rubber. To find out more about our litho printing services, visit us online at http://www.pepper.co.uk/html/services/litho.php
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