Method and apparatus for making a nonwoven fibrous electret web from free-fiber and polar liquid
    1.
    发明授权
    Method and apparatus for making a nonwoven fibrous electret web from free-fiber and polar liquid 有权
    从自由纤维和极性液体制造非织造纤维驻极体网的方法和装置

    公开(公告)号:US06375886B1

    公开(公告)日:2002-04-23

    申请号:US09415566

    申请日:1999-10-08

    IPC分类号: H05B716

    CPC分类号: D04H1/4382 D04H1/4291

    摘要: A method and apparatus for charging fibers that contain a nonconductive polymer. A polar liquid 32, 34 is sprayed onto free-fibers 24, and the free-fibers 24 are then collected to form an entangled nonwoven fibrous web 25 that may contain a portion of the polar liquid. The nonwoven web 25 is then dried 38. By applying an effective amount of polar liquid 32, 34 onto the nonconductive free-fibers 24 before forming the nonwoven web 25, followed by drying 38, the individual fibers 24 become charged. The method and apparatus enable the fibers 24 to be charged during web manufacture without subsequent processing.

    摘要翻译: 一种用于装入含有非导电聚合物的纤维的方法和装置。 将极性液体32,34喷涂到自由纤维24上,然后收集自由纤维24以形成可包含一部分极性液体的缠结非织造纤维网25。 然后将非织造纤维网25干燥38.通过在形成非织造纤维网25之前将有效量的极性液体32,34施加到非导电自由纤维24上,随后干燥38,单个纤维24变成带电。 该方法和装置使纤维24能够在卷筒纸制造期间被充电而不后续处理。