Duratrans

Duratrans is a large-format backlit color transparency film invented by Eastman Kodak Co. in the late 1970s and trademarked in 1982. Kodak shortened the name of the material – Endura Transparency – to its current name. The original duratrans film was exposed photographically and developed using a silver halide process, similar to conventional lab photography.

Over time, the term has come to refer to any of a range of large format backlit graphic substrates, created in a variety of ways including photochemical and various types of inkjets.