Method of Colour Setting in a Rotary Printing Press
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United States of America Patent
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app pub date -
May 26, 2011
filing date -
Dec 2, 2008
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Abstract
A method of colour setting in a rotary printing press, in which a composition of an ink is adjusted until colour specifications of a printed product, that is formed by a substrate with the ink printed thereon, match given target colour specifications, including the steps of measuring (S1) a volume carrying capacity of an inking roller that will be used in the printing press for printing with the ink, measuring (S2) a spectral opacity of the substrate, measuring (S3) a spectral absorptivity of the ink when it is in a liquid state in the printing press; and entering the measured volume carrying capacity, spectral opacity and spectral absorptivity into a mathematical model (S4) for predicting the colour specifications of the printed product.
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