发明名称 Process and apparatus for manufacturing a non-woven fabric and the product thereof
摘要 A thermoplastic web of indeterminate length is provided by forming a tubular thermoplastic web having interconnected filaments. The web is rotated about its axis while being advanced along its axis and is slit so as to provide a web having substantially parallel filament alignment at an angle to the longitudinal axis of the web. The web may be formed into a multiply structure having a plurality of webs wherein the filament alignment of at least one of the webs of the structure is at an angle to the filament alignment of at least one of the other webs of the structure.
申请公布号 US4227957(A) 申请公布日期 1980.10.14
申请号 US19780928613 申请日期 1978.07.27
申请人 PNC COMPANY 发明人 KEUCHEL, HERBERT W.;FARRIS, GEORGE A.
分类号 B26D3/16;B29C47/00;D04H3/04;D04H3/07;D04H13/00;D06H7/12;(IPC1-7):B31F1/00 主分类号 B26D3/16
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