| 摘要 |
<p>A method and an apparatus for forming a coating of a paint composition on a moveable substrate is disclosed. The method involves determining the volume flow rate of the paint composition that is required to form a desired wet film thickness for a given substrate speed and coating width and supplying the paint composition to a pool (25) in the nip between an applicator roll (7) and a metering roll (9) (or other suitable metering means) at a flow rate that is substantially equal to the calculated flow rate, and then monitoring the level of the paint composition in the pool (25) and adjusting operating parameters, such as the pressure between the rolls (7, 9), to maintain the paint composition level substantially constant. Maintaining a substantially constant level of the paint composition in the pool (25) in a situation where the volume flow rate of the paint composition into the pool is substantially equal to that required to form the desired wet paint thickness on the substrate ensures that the required volume flow rate of the paint composition is being transferred from the pool to the substrate.</p> |
