| 摘要 |
<p>Method and apparatus for curtain coating one or a plurality of superposed layers of a photographic composition onto a moving support (20) at a width wider than the width of the support (20). An edge portion of the free-falling curtain (18) is interrupted and diverted above the impingement locus on the support (20) by a curtain-severing device (40), approximately tangentially disposed to the coating roller (22) at said impingement locus so as to provide an uncoated margin (48) on the support (20). The curtain-severing device (40) comprises a protruding blade (42) which interrupts the edge portions of the falling curtain (18). Purging liquid is projected onto blade (42) which is disposed at an angle Ζ with respect to the direction of travel of the support (20) to divert the purging liquid and the curtain fluids away from the support (20) into the catch basin (28).</p> |
