METHOD FOR THE MEASUREMENT OF THE VOLUMETRIC CAPACITY OF A TEXTURED SURFACE AND DEVICE FOR PERFORMING THE SAID METHOD

摘要

The invention concerns a method and a device for the measurement of the volumetric capacity of a textured surface, especially a ceramic-coated laser-engraved metering roll, also called anilox roll, which is mainly used in the flexographic printing process, said metering roll comprising a plurality of cells designed to receive a predetermined quantity of a liquid, preferably ink, glue, varnish or a similar product to be transferred on the surface of a support. A ferrofluid is applied in the cells that compose the anilox roll surface, a magnetic field is generated close to the roll surface, the intensity of the said magnetic field, increased by the ferrofluid, is measured and the volumetric capacity of the anilox roll is determined by measuring the increase in the said magnetic field due to the presence of the ferrofluid.

主权项

1. A method for the measurement of the volumetric capacity of a non-conductive and non-ferromagnetic textured surface comprising a plurality of cells designed to receive a predetermined quantity of a liquid, preferably ink, glue, varnish or a similar product, to be transferred onto the surface of a support, wherein a ferrofluid is applied in the cells of the textured surface, a magnetic field is generated close to the textured surface, the intensity of the magnetic field, increased by the ferrofluid, is measured and the volumetric capacity of the textured surface is determined by measuring the increase in the magnetic field due to the presence of the ferrofluid.