| 摘要 |
A method of colour setting in a rotary printing press, wherein a composition of an ink is adjusted until colour specifications of a printed product, that is formed by a substrate with said ink printed thereon, match given target colour specifications, characterised by the steps of
- measuring (S1) a volume carrying capacity of an inking roller that will be used in the printing press for printing with said 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. |
