Thursday 21 November 2013

OUGD504: Design Production - Design for Print Thermography (GFSmith)

FIRST PRINCIPLES

Thermography is often seen as a practical alternative to engraving. It produces a similar raised effect, but without the use of specially made dies.
The three-dimensional effect, in this case, is achieved by applying a resin coating to the image. First, the artwork is printed using a slow-drying litho ink. This is then dusted with fine powdered resin and briefly heated to temperatures of up to 1300 degrees Fahrenheit. The heat melts the powder to form a resin that is fused to the ink image. The resin dries clear, leaving the ink to dictate the colour. Matte, gloss or semi-gloss finishes can be achieved.
As with all specialist print processes, it is important to remember that thermography is a bespoke service, involving many variable aspects. So, to realise your vision accurately, always talk to your paper supplier and the team involved in production. But to begin with, we can offer some tips on getting the best result from the process.

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