摘要 |
A curtain coating method comprising the steps of conveying a substrate (12) in a downstream direction (D) through an impingement zone (14), and impinging the substrate (12) with a free-falling curtain (16) in the impingement zone (14) at an acute angle (?). The force ratio (Re) of the curtain (16) at the impingement zone (16) is greater than about 5.25 (e.g., greater than about 5.50, about 6.00, about 6.50, about 7.00, about 7.50, and/or about 8.00) whereby the method may be used with a curtain (14) having a high mass flow rate (Q*?) and/or a low viscosity (?).
|
申请人 |
AVERY DENNISON CORPORATION;FERMIN, ROBERT, J.;JANSEN, ALEXANDER, A.;WANG, CHUNHWA |
发明人 |
FERMIN, ROBERT, J.;JANSEN, ALEXANDER, A.;WANG, CHUNHWA |