Melt spinning extrusion head system
    3.
    发明授权
    Melt spinning extrusion head system 失效
    熔纺丝挤出头系统

    公开(公告)号:US07014442B2

    公开(公告)日:2006-03-21

    申请号:US10335498

    申请日:2002-12-31

    IPC分类号: D01D5/28

    摘要: The present invention provides a series of plates for distributing a molten polymer composition, the series of plates includes at least two plates: a first plate that includes an upper surface, a lower surface, and a plurality of polymer distribution channels connecting the upper surface and the lower surface. In certain illustrated embodiments, the plurality of polymer distribution channels consist essentially of substantially horizontal channels at one or both the upper surface and lower surface and substantially linear downwardly sloping channels connecting the substantially horizontal channels at the upper surface to the substantially horizontal channels at the lower surface, the upper surface to the substantially horizontal channels at the lower surface or the substantially horizontal channels at the upper surface to lower surface; and a second plate that includes an upper surface, a lower surface, and a plurality of polymer distribution channels connecting the upper surface and the lower surface wherein the plurality of polymer distribution channels consist essentially of substantially horizontal channels at one or both the upper surface and lower surface and substantially linear downwardly sloping channels connecting the substantially horizontal channels at the upper surface to the substantially horizontal channels at the lower surface, the upper surface to the substantially horizontal channels at the lower surface or the substantially horizontal channels at the upper surface to lower surface.

    摘要翻译: 本发明提供了一系列用于分配熔融聚合物组合物的板,该系列板包括至少两个板:第一板,其包括上表面,下表面和多个聚合物分配通道,连接上表面和 下表面。 在某些示例性实施例中,多个聚合物分配通道基本上由上表面和下表面中的一个或两个上的基本上水平的通道组成,并且基本上线性的向下倾斜的通道将上表面处的基本上水平的通道连接到下部的基本上水平的通道 表面,上表面到下表面处的基本水平的通道或在上表面到下表面处的基本水平的通道; 以及第二板,其包括连接上表面和下表面的上表面,下表面和多个聚合物分配通道,其中多个聚合物分配通道基本上由上表面和上表面中的一个或两个基本上水平的通道组成, 下表面和基本上线性的向下倾斜的通道,其将上表面处的基本上水平的通道连接到下表面处的基本水平通道,上表面到下表面处的基本水平通道或在上表面处的基本水平的通道 表面。

    Method and apparatus for improved quenching of nonwoven filaments
    5.
    发明授权
    Method and apparatus for improved quenching of nonwoven filaments 失效
    用于改善非织造长丝淬火的方法和装置

    公开(公告)号:US6117379A

    公开(公告)日:2000-09-12

    申请号:US124536

    申请日:1998-07-29

    CPC分类号: D01D5/0985 D01D5/088 D04H3/03

    摘要: A method and apparatus for improved quenching of nonwoven filaments utilizing a turbulence inducing bar arrangement disposed in a stream of quenching gas between the quenching gas supply apparatus and the group of filaments being extruded. The bar arrangement increases the turbulence of the quenching gas so that the gas applied to the filament group has a turbulence intensity of at least about 5%. The turbulent quenching gas penetrates the interior of the filament bundle to provide more efficient removal of heat.

    摘要翻译: 一种利用在猝熄气体供给装置和被挤出的长丝组之间的骤冷气体流中设置的湍流诱导棒布置来改进非织造长丝淬火的方法和装置。 棒排列增加了淬火气体的湍流,使得施加到丝群上的气体具有至少约5%的湍流强度。 湍流淬火气体穿透细丝束的内部以提供更有效的热量去除。