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    • 3. 发明授权
    • Electrostatic charge neutralization using grooved roller surface patterns
    • 使用凹槽辊表面图案进行静电荷中和
    • US07095600B2
    • 2006-08-22
    • US10283458
    • 2002-10-30
    • Mark C. ZaretskyPaul A. CorbelliBrooks J. Schneider
    • Mark C. ZaretskyPaul A. CorbelliBrooks J. Schneider
    • H05F3/00H05C1/00
    • H05F3/04B05D3/14B05D2252/02
    • A method for coating a liquid composition from an applicator to a first surface of a moving web having opposite first and second surfaces, the web being conveyed along a path through a coating apparatus, the coating apparatus including a charge neutralization station for neutralizing stray charges on the web, the charge neutralization station including a backing roller and means for depositing a charge on the web includes the steps of: wrapping the web in a partial wrap around the backing roller, the backing roller being provided with a conductive, relieved surface, the relieved surface having a pattern of circumferential grooves that provides venting of entrained air, the pattern having a geometry and depth such that any charge left on the web does not disturb the coating applied by the coating apparatus; providing a source of electrostatic charge at the charge neutralization station to neutralize any charge on the web; and transporting the charge neutralized web to a coating station, where a liquid composition is applied to the first surface, whereby the coating of liquid composition is not disturbed by stray electrostatic charges.
    • 一种用于将液体组合物从施用器涂覆到具有相反的第一和第二表面的移动幅材的第一表面的方法,所述幅材沿着通过涂覆装置的路径被输送,所述涂覆设备包括用于中和杂散电荷的电荷中和站 纸幅,包括背衬辊的充电中和站和用于在纸幅上沉积电荷的装置包括以下步骤:将纸幅包裹在背衬辊周围的部分包裹中,背衬辊设置有导电的缓和表面, 释放的表面具有提供夹带空气排气的周向凹槽图案,该图案具有几何形状和深度,使得留在纸幅上的任何电荷不会妨碍涂覆装置施加的涂层; 在充电中和站处提供静电电荷来中和网上的任何电荷; 并将电荷中和的幅材输送到涂布站,其中将液体组合物施加到第一表面,由此液体组合物的涂层不会被杂散静电电荷扰乱。