Method for automatic removal of defective paper web, carton web, tissue web or another web in fibrous web manufacturing and processing machine, involves recognizing and locating defect by detector

摘要

The method involves recognizing and locating the defect by a detector and removing the defect by a repairing unit by applying a covering unit. The repairing unit continues along the machine running direction. The covering unit is applied on the fibrous web (1) with a velocity component in the web running direction (2).