| 摘要 |
<p>A method for coating of a fibrous web, e.g. a paper according to which a coating colour with pigments is applied to the surface of the web and dried in order to form a coated web. The invention comprises using a coating colour which contains pigments having a steep particle size distribution, a maximum of 35 % of the pigment particles being smaller than 0.5 mu m. The coating colour is spread on the surface of the web with a coating speed of at least 1450 m/min, preferably over 1600 m/min. The coating pigment having a steep particle size distribution gives rise to a coating colour which solidifies at much lower dry substance than conventional coating colours. In this way coating can be controlled at high speed without runnability and quality problems. The coating colours according to the invention can be used for single coating or as so called pre-coat and surface-coat colours. Preferably the material is double-coated, first with a precoating and then with a surface coating, whereby both coating colours contain pigments having a steep particle size distribution.</p> |
