| 摘要 |
<p>Apparatus (10) and method for controlling and leaving different thickness coatings on a continous web (12). A jet finishing assembly (38, 40) includes a support means (70, 72) and at least two rotatably mounted jet finishing knives (60, 62). The orifice opening of each knife (60, 62) is a different height (90, 92) corresponding to a different thickness coating to be left on the web (12). When the coating thickness requirement for the web (12) changes, the finishing knives (60, 62) are rotated until a knife (60, 62) having the appropriate orifice opening for leaving the required coating thickness is adjacent the passing web (12).</p> |
