PROCESS AND MEANS FOR DIRECTLY AND EFFECTIVELY DETERMINING THE HOLLOW VOLUME OF A SCREEN OR THE ABSOLUTE AND RELATIVE INK RELEASING FACTOR OF INKING ROLLERS, PARTICULARLY FOR FLEXOGRAPHIC PRINTING

摘要

For directly and effectively determining, the hollow volume of a screen, or of absolute and relative ink releasing factor of inking rollers, particularly for flexographic printing, at least the penetration of at least a plastic or at least hyperplastic phase (2, 20), of known quantity, in the cell recesses (33) delimited by doctor scraping level (33'), of a screen (3) and at least the penetrated phase quantity and/or the phase quantity, released or transferred to a support is determined. At least the penetrated phase quantity, is determined by difference, between the known phase quantity, preceding penetration and the phase quantity remained, at least after penetration or transferred to a support. It is measured in term of change of position of the surface, interface or the like (23) of the fluid and/or hyperplastic phase (2), in a chamber (10) having a constant cross section and is displayed by a substantially transparent graduated ruler (4).