On the Measurement of the Pick-up Volume of Anilox Rollers by Fluorescence

摘要

In this research an approach is shown how a fluorescent fluid can help to determine the pick-up volume of anilox rollers. The aim is to develop a method, which allows for fast measurements with simple test equipment and is easy to perform. Based on a list of requirements fluids are chosen and characterized. A simple test rig is provided to acquire images of different anilox rollers. In order to obtain information about the pick-up volume, the anilox rollers are wetted using fluorescent fluids, doctor bladed afterwards and illuminated using UV light. A monochrome camera acquires images in a shielded environment to eliminate the influence of ambient and scattered light. The chosen fluid is tested with three different mixing ratios on three different anilox rollers.