Printing plate for offset printing unit, has surface with first surface area, which is color-friendly, second surface area, which is ink-repellent and third surface area, which is color-friendly

摘要

The printing plate (3) has a surface with a first surface area (11), which is color-friendly. A second surface area (12) is ink-repellent and a third surface area (13) is color-friendly, is made from a different material than the first and second surface areas and is lighter than the first and second surface areas. The third surface area forms a measuring field (10) for the sensory detection of the ink in the control or regulation of the ink metering in a printing machine. The white pigments comprise titanium oxide, zinc oxide, where a coating is nitro-lacquer, particularly cellulose lacquer.