Patent ID: 6171642
Filing Date: 2001-01-09
Classification: D21H

Abstract:
A method of application of a coating medium onto a moving fiber material web, said method comprising the steps of:providing an applicator unit having at least one operating parameter;coating the fiber web with a layer of the coating medium using said applicator unit, each said at least one operating parameter having a corresponding initial operating parameter value at a time of said coating;examining the layer of coating medium for a deviation from a desired coating result;correcting the deviation, said correcting step including temporarily modifying at least one of said at least one operating parameters of said applicator unit from said corresponding initial operating parameter value to effect and thereby cause removal of a disturbing factor causing the deviation, said temporary modification occurring with the fiber web moving;resetting said at least one of said at least one operating parameters approximately to said corresponding initial operating parameter value, said resetting occurring during said application of the coating medium onto the moving fiber material web and after said correcting step;repeating said coating and examining steps; andrepeating said correcting step and said resetting step if said deviation is detected in said repeated examining step.