发明名称 Method for providing a web of thermoplastic filaments
摘要 An apparatus for providing a uniform web of filaments comprises tube filament transport means exiting through a confined zone of reduced turbulence, which preferably comprises a delivery slot. The delivery slot is configured with sidewalls substantially parallel to one another and to the transport tubes, so that filaments undergo minimal machine direction deflection in the slot. Charging means within the slot charge the filaments for further cross direction separation. A method of providing a uniform web of filaments comprises transporting filaments through transport tubes, through a tapered transition member, and into a delivery slot. The delivery slot is defined by sidewalls that are substantially parallel to one another and to the transport tubes, so that minimal machine direction deflection of the filaments occurs. The filaments are also charged by electrostatic charging means while they are in the slot for further separation. The method and apparatus of the invention provide for a uniform filament web with high machine direction orientation.
申请公布号 US6797101(B2) 申请公布日期 2004.09.28
申请号 US20020072748 申请日期 2002.02.07
申请人 POLYMER GROUP, INC. 发明人 FERENCZ RICHARD;WENG JIAN;YAMANOUCHI BRIAN
分类号 D04H3/04;D04H3/16;(IPC1-7):B32B31/00 主分类号 D04H3/04
代理机构 代理人
主权项
地址