| 摘要 |
A System and method for measuring the viscosity of printing ink during the printing and ink correction process is presented. A Printing press comprises at least one ink supply system, with which ink can be transferred from an inlet point to the printing substrate, at least one optical measuring device for measuring actual optical values of light, in which the actual optical values are from light of selected wavelength ranges and in which the light has interacted with at least parts of the printing picture, whereby the printing press further comprises an ink mass determination device for determining the weight of at least parts of the ink which is located within an ink supply system a control and evaluation device which can be provided with measured values from the optical measuring device and with measured values from the ink mass determination device and which can be used to determine the optical deviation, that is the deviation of the actual optical values from the optical reference values, which are available as light intensity values of selected wavelength ranges, and which control and evaluation device can be used to determine on the basis of the optical deviation and the values from the weighing devices, how much corrective ink having a determined composition is fed to the printing press in order to approximate the actual optical values to the optical reference values. |
