发明名称 |
Method and apparatus for curtain coating |
摘要 |
A method and apparatus for preventing vortical air flow behind a free-falling curtain in a curtain coating apparatus. There is a critical region within the coating apparatus defined in part by a coating hopper, the free-falling curtain delivered from the coating hopper, a portion of the moving substrate supported on a roller to which the free-falling curtain is delivered, and an air shield located between the roller and the coating hopper. A first intake slot proximate to the moving substrate shield is used to remove boundary-layer air entrained on the moving substrate. A second intake slot positioned within the critical region is used to remove boundary-layer air entrained on the free-falling curtain. Each of the two intake slots is connected to vacuum source. One or two vacuum sources may be used.
|
申请公布号 |
US5976630(A) |
申请公布日期 |
1999.11.02 |
申请号 |
US19970939617 |
申请日期 |
1997.09.29 |
申请人 |
EASTMAN KODAK COMPANY |
发明人 |
KOROKEYI, SOLOMON T.;RUSCHAK, KENNETH J.;HARDENBROOK, KURT S.;FINNICUM, DOUGLAS S.;DEPREZ, ROBERT J. |
分类号 |
B05C5/00;B05D1/30;B05D3/04;G03C1/74;(IPC1-7):B05D1/30;B05C1/00 |
主分类号 |
B05C5/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|