Multilayer coating comprises lower curtain coating layer comprising pigment, subsequent upper curtain coating layer and top coating layer, where pigment of upper and top coating layer is different from pigment of lower curtain coating layer

摘要

Multilayer coating comprises a lower curtain coating layer (8) comprising at least one pigment, at least subsequent upper curtain coating layer and at least one top coating layer on the next upper curtain coating layer, where the subsequent upper curtain coating layer and the top coating layer contain a pigment, which is different from the pigment of lower curtain-coating layer. An independent claim is also included for multilayer coating of a cardboard or paper sheet, comprising forming a lower coating layer comprising at least one pigment by a curtain coating station, forming at least one subsequent upper coating layer by a curtain coating station and forming at least one top coating layer on the subsequent upper coating layer which is formed by curtain-coating station, by at least one blade- or rod coating station, where at least two curtain coating layers are coated by a multilayer curtain coating station, or by at least two single curtain coating stations.