Sunday 21 August 2011

Litho Printing

Lithography uses simple chemical processes to create an image. For instance, the positive part of an image is a hydrophobic, or "water hating" substance, while the negative image would be hydrophilic or "water loving". Thus, when the plate is introduced to a compatible printing ink and water mixture, the ink will adhere to the positive image and the water will clean the negative image. This allows a flat print plate to be used, enabling much longer and more detailed print runs than the older physical methods of printing (e.g., intaglio printing, Letterpress printing). For all of your litho printing requirements, please visit us online at www.pepper.co.uk/html/services/litho.php

Sunday 14 August 2011

Pepper.co.uk - Litho Printing Services


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