PIGMENTS

The term reprography was first used around the 1960s to encompass the new imaging techniques, including xerography, electrofax and thermog­raphy, which were emerging at the time for document reproduction. Reprographics still refers to those newer imaging processes which may be distinguished from conventional printing techniques, such as lithogra­phy, flexography and gravure printing, and traditional silver halide photography. These processes have experienced remarkable growth be­cause of the rapid advances in computing technology and the consequent growth in demand for home and office printing of high quality, using relatively inexpensive printers. The most important of these techniques currently are electrophotography and ink-jet printing, which offer the advantage of printing on to plain paper. Another technology worthy of mention in this context is dye diffusion thermal transfer (D2T2), but the need for special paper and the consequent expense has limited the growth of this technique.

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