An essential property of cigarette paper is the so-called porosity, this is the air permeability through the paper. This porosity is expressed in Coresta Units (CU value) and can be measured using special measuring technology. Today, porosities between 100 and 3000 CU are usually used for ventilated "light" products.
For our laser systems MLP10 and MLP50 we supply our system ML-OPD IV (Online Porosity Detection Generation IV); a hardware solution for automatic perforation monitoring.