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公开(公告)号：US09868130B2
公开(公告)日：2018-01-16
申请号：US14420014
申请日：2013-08-06
申请人： DSM IP ASSETS B.V.
CPC分类号： B05C1/08 , B05C5/0241 , B05D1/28 , B05D5/061 , B05D2203/35 , B05D2252/02 , G02B1/11
摘要： The invention relates to a roll coating process for applying a coating layer on a non-continuous sheet, comprising the steps of 1) applying a liquid coating composition to the top surface of the sheet by passing the sheet horizontally between an applicator roll and a backing roll; 2) forwarding the coated sheet with a coated sheet forwarder; wherein forwarding is interrupted after passing the applicator roll while maintaining a meniscus of liquid coating composition between stopped sheet and rotating applicator roll, and forwarding is restarted when the meniscus has disappeared. With this process it is possible to make sheets coated with an optical coating like an anti-reflective coating, which sheets show markedly smaller and less visible edge defects, especially at the trailing edge. The invention also relates to a roll coating apparatus suitable for operating the process of the invention, which apparatus comprises at least an applicator roll, a backing roll, a coated sheet forwarder, and control means to operate the sheet forwarder depending on the position of a sheet in the apparatus.
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公开(公告)号：US20150217322A1
公开(公告)日：2015-08-06
申请号：US14420014
申请日：2013-08-06
申请人： DSM IP ASSETS B.V.
CPC分类号： B05C1/08 , B05C5/0241 , B05D1/28 , B05D5/061 , B05D2203/35 , B05D2252/02 , G02B1/11
摘要： The invention relates to a roll coating process for applying a coating layer on a non-continuous sheet, comprising the steps of 1) applying a liquid coating composition to the top surface of the sheet by passing the sheet horizontally between an applicator roll and a backing roll; 2) forwarding the coated sheet with a coated sheet forwarder; wherein forwarding is interrupted after passing the applicator roll while maintaining a meniscus of liquid coating composition between stopped sheet and rotating applicator roll, and forwarding is restarted when the meniscus has disappeared. With this process it is possible to make sheets coated with an optical coating like an anti-reflective coating, which sheets show markedly smaller and less visible edge defects, especially at the trailing edge. The invention also relates to a roll coating apparatus suitable for operating the process of the invention, which apparatus comprises at least an applicator roll, a backing roll, a coated sheet forwarder, and control means to operate the sheet forwarder depending on the position of a sheet in the apparatus.
摘要翻译： 本发明涉及一种在非连续片材上涂覆涂层的辊涂工艺，包括以下步骤：1）通过使片材水平地在涂布辊和背衬之间涂布液体涂料组合物到片材的顶表面 滚; 2）用涂覆的纸张转发器转发涂布的纸张; 其中在通过涂布辊之后中断转发，同时保持液体涂料组合物在停止的片材和旋转涂布辊之间的弯液面，并且当弯液面已经消失时重新开始转发。 通过该工艺，可以制成涂覆有诸如抗反射涂层的光学涂层的片材，这些片材显示出明显更小和更少可见的边缘缺陷，特别是在后缘。 本发明还涉及一种适用于操作本发明方法的辊涂装置，该装置包括至少一个涂布辊，背衬辊，涂层纸张转送器和控制装置，用于根据纸张的位置 在设备中。
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