Scientific Programme

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Continous Tone Printing from Gel Matrices: The Woodburytype

Thursday (19.03.2020)
12:00 - 12:20
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Prevailing print techniques such as inkjet rely on halftoning, a process whereby image tone is approximated by a matrix of droplets varying in density. This, while useful in many applications, ensures a direct link between the resolution and the droplet size. The Woodburytype is one of the few reprographic techniques that can produce continous tone and is based on a relief structure of pigmented gelatin, that directly ties tone to print height. We discuss the prevalence of gelatin in many photographic/print processes, alternative gelling agents and present an optical model of these semi-transparent films for full colour print.

Dr. Damien Leech
University of the West of England