| 摘要 |
<p>The invention relates to a method for improving the usability of a slide-fed curtain coater, which is used for coating a fibrous web, and for reducing the loss of coating materials, said curtain coater having a nozzle unit (1) which comprises at least two adjacent nozzle parts (3, 3a, 32) and which nozzle unit includes a nozzle slot (30) between said at least two adjacent nozzle parts, which extends in a longitudinal direction (W) of the coating device and which has coating material supplied across its entire breadth and further discharged through an outlet (31) of the nozzle slot (30) onto a flow plane (4) established by a top surface of the nozzle parts. In the method, during a break in the fibrous web coating process the flow plane (4) is flushed to a desired degree and at desired times with a flushing liquid for flushing the coating material off of the flow plane (4) as well as for preventing the coating material present in the nozzle slots (30) from drying. The invention relates also to an arrangement for performing the method.</p> |
