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Predicting Mottle with Topography Measurement

An excerpt from the paper

A new instrument for the measurement of surface topography, known as “Verity IA Topography”, has been introduced. This instrument objectively quantifies and ranks the surface topography of paper and board and can also quantify the degree of mottle present in printed specimens. This paper describes tests conducted on a variety of substrates that include coated and uncoated printing grade papers and boards. It is shown that the methodology used is applicable to any surface destined to receive a printed image using a contact printing method and may have application to non-contact print.

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