28-05-2020 дата публикации
Номер: US20200164399A1
Принадлежит:
A method for coating a material web (), in particular a fibrous web, by way of a coating device. The coating device () has an application unit () for applying a coating medium to the material web. The application unit is arranged in the interior of an enclosure (), which has first opening for the entry of the material web and a second opening for the exiting of the material web. In the interior of the enclosure there is produced a positive pressure greater than the ambient pressure outside the enclosure during the coating so that air flows from the interior of the enclosure to the outside () of the enclosure through the first opening and/or the second opening. 110-. (canceled)112. A method of coating a material web () , the method comprising:{'b': 1', '3', '2', '4', '3', '5', '4', '4', '6', '2', '7', '2', '5, 'i': a', 'a, 'providing a coating device () with an application unit () for applying a coating medium to the material web () and an enclosure (), wherein the application unit () is disposed in an interior () of the enclosure (), and the enclosure () is formed with a first opening () enabling the material web () to enter and a second opening () enabling the material web () to exit from the interior ();'}{'b': 4', '5', '4', '5', '4', '6', '7', '5, 'i': b', 'a', 'b, 'during a coating process, producing a positive pressure inside the enclosure () that is greater than an ambient pressure outside () the enclosure (), to cause air to flow from the interior () of the enclosure () through the first opening () and/or the second opening () to the outside () of the enclosure.'}1233. The method according to claim 11 , wherein the application unit () is a curtain application unit ().1310104. The method according to claim 11 , wherein the step of producing the positive pressure comprises blowing an airflow () into the enclosure or aspirating an airflow () out of the enclosure ().1410. The method according to claim 13 , which comprises adjusting the air flow () to more than ...
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