METHOD AND DEVICE FOR CUTTING THE EDGE OF PAPER WEB

摘要

In the method for trimming the edge of the paper web, a cutting liquid jet directed to area of the web's edge is used. The first jet in the machine direction cuts the edge of the paper web (W) obliquely at the first jet angle ( alpha 1) with a jet directed towards the outer edge of the web, and the oblique edge thus obtained is cut with a jet placed second in the machine direction, which is directed less obliquely at a second jet angle ( beta 2) to the outer edge of the web. Similar nozzles (1a, 1b) are placed in the same nozzle element (1), which is movable in the cross direction to the machine.