Computer visualization of the results for calculating the Ink «dusting»

The paper presents the results of the numerical modeling of the quantitative assessment of the offset printing ink "dusting" index at the outlet of the printing contact zone while transferring it to the substrates having various surface characteristics. The modeling was carried out with the help of finite-difference methods. The paper considers the results of practical implementation of the software calculating the printing ink "dusting". The result of the ink filaments splitting into many fine particles and the intensive spraying these particles into the surrounding space by the centrifugal force reduces the print quality. Creating new concepts of reducing the level of ""dusting"" in offset printing and its quantitative assessment is important. A new approach to solving the problem of reducing the "dusting", which is characterized by the influence on the ink in the engagement zone of the idle pulse of varying power, is suggested. To quantify the ink transferred into noodles and participating in the formation of "ink "dusting"", process numerical modeling techniques using solution finite difference methods are applied. Graphic visualization of the given solution results on the basis of the graphic modeling is presented. The practical implementation of this method improves the quality of the final printing product, and allows to predict the quantitative assessment of the "dusting" indices directly in the process of preparing the order for printing and to optimize the selection of the printing system components.