METHOD AND ASSEMBLY FOR COATING A MOVING WEB OF PAPER OR PAPERBOARD

摘要

The invention relates to a method and assembly for coating a moving web (1) of paper or paperboard by means of a coating mix jet (6) which is directed to the surface of the web without mechanical support. The invention is based on applying a desired amount of the coating mix to the web (1) via a narrow-gap slit orifice (5), and by virtue of measuring the coat weight on the web (1), adjusting the position of at least one lip (4) of the slit orifice (5) in order to achieve the desired weight and cross-machine profile of the applied coat.