METHOD FOR COATING A WEB OF PAPER OR PAPERBOARD AND A COATED PAPER GRADE

摘要

A method is disclosed for manufacturing a web of paper and paperboard, in which method a spray-coating technique is used for applying a web treatment substance to at least one surface of a moving web. The qualities of the web treatment substance are selected such that at least the droplet size and viscosity of the web treatment substance are controlled such as to make the thickness of the applied web treatment substance essentially equal in at least two randomly selected sample areas. By the definition of the invention, this means that the applied coating conforms with the surface contour of the base sheet. The publication also discloses a paper manufactured using the method.