Streicheinrichtung mit zwischen einer Auftragswalze und einer Gegenwalze gebildetem Auftragsspalt

摘要

A coating device has a coating roller (1) which forms a coating gap (10) with the counter-roller (4) for guiding the web of material (C). A preferably flexible guiding wall (2) having approximately the same shape as the casing of the counter-roller (4) or a shape adapted to the shape of the latter, or an automatically adaptable shape by Coanda effect, is arranged after the coating gap (10) or after the pressure chamber (8) formed in that spot between the coating roller (1) and the counter-roller (4). The guiding wall (2) forms a narrow gap (7) on the web of material, at such a small distance that any formation of drops or streaks in the coated material due to the centrifugal force is reliably excluded. A final dosing spot constituted by a dosing blade (6) is located downstream of the guiding wall.