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公开(公告)号:US20080087216A1
公开(公告)日:2008-04-17
申请号:US11999944
申请日:2007-12-07
申请人: Wayne Damrau , John Bergin
发明人: Wayne Damrau , John Bergin
摘要: An improved film coater which utilizes one or more coater or applicators to transfer coating to the outer surfaces of at least one more rolls, which in turn transfers the coating from the roll surface to one or more sides of the web for coating paper is disclosed. The coater or applicator includes a smoothing doctor on the web and downstream of the one or more rolls, and may also utilize humidity from one of steam showers or a humidity enclosure to assist smoothing. The web may run in any direction, but preferably runs upwardly from the roll toward the doctor to reduce “film split” droplets effect. The present invention also reduces the fiber rise and arrange peel pattern on the coated web, resulting in a smooth uniform coated paper.
摘要翻译: 公开了一种改进的薄膜涂布机,其利用一个或多个涂布机或涂布器将涂层转印到至少一个以上的辊的外表面上,其又将涂层从辊表面转移到用于涂布纸的幅材的一个或多个侧面。 涂布机或涂布器包括在幅材上的平滑刮刀和一个或多个辊的下游,并且还可以利用来自蒸汽淋浴或湿度外壳之一的湿度来辅助平滑化。 网可以沿任何方向运行,但是优选地从卷朝向医生向上延伸以减少“膜分裂”液滴效应。 本发明还减少了纤维上升并且在涂布的织物上布置了剥离图案,导致光滑均匀的涂布纸。
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公开(公告)号:US20070104873A1
公开(公告)日:2007-05-10
申请号:US10537241
申请日:2003-12-05
申请人: Wayne Damrau
发明人: Wayne Damrau
CPC分类号: D21H23/32 , B05C1/0813 , B05C11/025
摘要: A doctor method and apparatus is disclosed and includes a doctor roll (12) supported in a coater (1) suitable for applying coating to a paper web surface or a roll surface (4) for subsequent transfer to the paper web. The doctor includes a doctor roll (12), a support (11) for the doctor roll (12), a front support (3) for holding the roll support (11) and a rear support or retainer (18) cooperates with and helps stabilize the support (11) and doctor roll (12). The present invention minimizes the variation moving of the doctor roll (12) has on the coating on the moving surface (4), be it web or roll, and thus can improve coating quality.
摘要翻译: 公开了一种医生方法和装置,并且包括支撑在涂布机(1)中的刮刀辊(12),该涂布机适于将涂层施加到纸幅表面或辊表面(4),用于随后传送到纸幅。 医生包括刮刀辊(12),用于刮刀辊(12)的支撑件(11),用于保持辊支撑件(11)的前支撑件(3)和与后支撑件或保持器(18)配合并帮助 稳定支撑件(11)和刮刀(12)。 本发明使得刮刀辊(12)在移动表面(4)上的涂层上的变化移动最小化,无论是幅材还是辊,从而可以提高涂层质量。
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公开(公告)号:US20050129854A1
公开(公告)日:2005-06-16
申请号:US11041814
申请日:2005-01-21
申请人: Wayne Damrau , John Bergin
发明人: Wayne Damrau , John Bergin
摘要: An improved film coater which utilizes one or more coater or applicators to transfer coating to the outer surfaces of at least one more rolls, which in turn transfers the coating from the roll surface to one or more sides of the web for coating paper is disclosed. The coater or applicator includes a smoothing doctor on the web and downstream of the one or more rolls, and may also utilize humidity from one of steam showers or a humidity enclosure to assist smoothing. The web may run in any direction, but preferably runs upwardly from the roll toward the doctor to reduce “film split” droplets effect. The present invention also reduces the fiber rise and arrange peel pattern on the coated web, resulting in a smooth uniform coated paper.
摘要翻译: 公开了一种改进的薄膜涂布机,其利用一个或多个涂布机或涂布器将涂层转印到至少一个以上的辊的外表面上,其又将涂层从辊表面转移到用于涂布纸的幅材的一个或多个侧面。 涂布机或涂布器包括在幅材上的平滑刮刀和一个或多个辊的下游,并且还可以利用来自蒸汽淋浴或湿度外壳之一的湿度来辅助平滑化。 网可以沿任何方向运行,但是优选地从卷朝向医生向上延伸以减少“膜分裂”液滴效应。 本发明还减少了纤维上升并且在涂布的织物上布置了剥离图案,导致光滑均匀的涂布纸。
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公开(公告)号:US20060150900A1
公开(公告)日:2006-07-13
申请号:US11334021
申请日:2006-01-18
申请人: Wayne Damrau
发明人: Wayne Damrau
CPC分类号: B05C5/0283 , B05C11/10 , B05C11/1039 , D21H23/34 , Y10S118/04
摘要: An fountain applicator for applying coating liquid onto a web of paper carried past the applicator, has a coating liquid flow path that includes a curved surface along which a sheet of the coating liquid is flowed to subject the sheet to centrifugal force to cause air entrained in the coating liquid to move away from one side of the sheet that is toward the curved surface, so that the one side is relatively free of entrained air. After being flowed along the curved surface, the sheet of coating liquid is directed toward the web in a free standing jet curtain of coating liquid, to contact the web surface primarily with the one relatively air-free side of the coating liquid sheet to decrease the occurrence of skip coating on the web surface, especially when the web is traveling past the applicator at high speeds. The coating is applied in excess onto the web surface and is metered and leveled to a desired coat weight by a downstream doctor. The downstream doctor may comprise a single metering device, or it may comprise an intermediate metering device followed by a final metering and leveling device.
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