METHOD AND DEVICE FOR CONTROLLING THE MOISTURE OR COATING QUANTITY PROFILE IN A PAPER WEB

摘要

The invention relates to a method for controlling the moisture profile of a paper web. In the method, the narrow-scale moisture profile is controlled by profiling nozzles (11) of a profiling device (10) which cover part of the width of the web and, in the method, desired variations of the moisture profile are corrected by the profiling nozzles (11). The invention also relates to a method for controlling the coating quantity profile of a paper web. In the method, the narrow-scale coating quantity profile is controlled by profiling nozzles (11) of a profiling device (10) which cover part of the width of the web and, in the method, desired variations of the coating quantity profile are corrected by the profiling nozzles (11). The invention further relates to a device for controlling the moisture profile or the coating quantity profile of a paper web. The device (10) comprises profiling nozzles (11) for controlling narrow-scale moisture profile variation, which cover a desired part of the width of the web, to correct desired variations occurring in the profile in the width direction of the web.