| 摘要 |
<p>Paper, plastics or metallic foil web coating appts. in which the webs which are moving continuously are coated with liq. suspensions of pigments, plastics materials or lacquers includes a guide roller disposed over an opening of a suction chamber into which excess of the coating material is removed by a pneumatic doctor blade, whereby the mixt. of air and coating material is first of all directed vertically downwardly into an outlet and then deflected upwardly in a meandering path formed by a staggered arrangement of baffle plates.</p> |
