Method for coating a tile element

    公开(公告)号:US11679410B2

    公开(公告)日:2023-06-20

    申请号:US17256448

    申请日:2019-07-01

    Abstract: A method for coating a tile element includes providing a tile element made of a compressed fibre material having a porosity in the range of 0.92-0.99 and applying a water-based coating material to a side edge surface of the tile element extending between two opposite major surfaces of the tile element. The applying is performed by an applicator head of a continuous vacuum coating apparatus that applies the water-based coating material to the side edge surface of the tile element and removes excess through a vacuum. The water-based coating material is applied at a feeding rate of the tile element relative the applicator head in the range of 25-150 m/min. The water-based coating material forms a coating layer including an outer coating layer and an inner coating layer penetrating the side edge surface. The inner coating layer has penetration depth of at least 100 μm.

    SLOT DIE BOUNDARY LAYER REMOVAL TECHNIQUES
    10.
    发明申请

    公开(公告)号:US20180117620A1

    公开(公告)日:2018-05-03

    申请号:US15340209

    申请日:2016-11-01

    Inventor: Thomas J. Forbes

    Abstract: This document discusses apparatus and methods for removing boundary air of a web that can interfere with slot die coating of a surface of the web. In an example, an apparatus for removing boundary air that can interfere with slot die coating a web can include a blade bar configured to attach adjacent an up-web side of a slot die vacuum box. The blade bar can include a channel configured to extend across a width of web, the channel including two sidewalls each having a surface configured to allow the web to pass between the surface and a machine roller with a consistent gap, a distribution chamber pneumatically coupled to the channel, and a vacuum connector configured to allow a source of vacuum to couple with the blade bar and apply vacuum to the vacuum distribution chamber.

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