Continuous feed coater
    1.
    发明申请
    Continuous feed coater 有权
    连续进料涂布机

    公开(公告)号:US20020069826A1

    公开(公告)日:2002-06-13

    申请号:US09952881

    申请日:2001-09-15

    IPC分类号: C23C016/00

    摘要: A continuous feed coater for coating a length of substrate with vaporized or sprayed material, is disclosed. A specific example is a roll-to-roll coater which includes two lower supply rollers for supporting two webs of uncoated material, and two upper take-up rollers for supporting the webs after they are coated. A central web-support forms a plenum that acts as a deposition chimney or chamber by bringing the two webs into close proximity to each other to form two large walls of the plenum. The ends of the webs are sealed using side dams to form the chimney with a rectangular cross section such that the vapor cannot exit from the edges of the material. The vaporized coating constituents to be deposited on the rolled material are directed into the deposition plenum from a coating material supply source located at the bottom of the plenum, and are exhausted through the top of the plenum. By providing a plenum having two large surface area walls formed of the material to be coated, an extremely efficient coating system is provided. The top of the plenum includes an exhaust system with an orifice plate with a plurality of orifices spaced across the width of the deposition plenum. These orifices restrict gas exhaust to provide the gas and vapor residence time for the materials being used. By further controlling the orifices relative to each other, the differential pressure across the width of the chamber can be controlled to further provide an even coating across the width of the two webs of substrate material. Two different web-handling embodiments are disclosed as is a solid substrate system.

    摘要翻译: 公开了一种用蒸发或喷射材料涂覆一段衬底的连续进料涂布机。 一个具体的例子是卷对卷涂布机,其包括用于支撑两个未涂覆材料的两个下供应辊和两个用于在涂布之后支撑网的上卷取辊。 中央腹板支撑件形成通过使两个腹板彼此靠近以形成气室的两个大壁的作为沉积烟囱或腔的充气室。 使用侧坝将腹板的端部密封以形成具有矩形横截面的烟囱,使得蒸气不能从材料的边缘排出。 要沉积在轧制材料上的蒸发的涂层组分从位于集气室底部的涂料供应源引入沉积室,并通过气室的顶部排出。 通过提供具有由待涂覆材料形成的两个大的表面积壁的增压室,提供了非常有效的涂层系统。 增压室的顶部包括具有孔板的排气系统,孔板具有跨过沉积室的宽度间隔开的多个孔口。 这些孔限制排气,为所用材料提供气体和蒸气停留时间。 通过相对于彼此进一步控制孔口,可以控制腔室宽度上的压差,以进一步在两个基片材料幅材的宽度上提供均匀的涂层。 公开了两种不同的纸幅处理实施例,就像固体基板系统一样。