发明名称 Process for finishing a nonwoven film-fibril sheet
摘要 There is disclosed a finishing process for preparing a bonded, nonwoven, polyethylene, film-fibril sheet having high delamination strength and uniformity of appearance comprising selecting a particular starting sheet which is lightly consolidated, embossing the lightly consolidated sheet in a particular manner, passing the resulting sheet, under restraint, through a heating zone to cause a specified amount of fusion of surface film-fibrils, and heat treating the other surface of the sheet similarly to obtain a bonded sheet having a specified opacity.
申请公布号 US4069078(A) 申请公布日期 1978.01.17
申请号 US19760717006 申请日期 1976.08.23
申请人 E. I. DU PONT DE NEMOURS AND COMPANY 发明人 MARDER, MILTON DAVID;OSMALOV, ROBERT;PFEIFFER, GERALD P.
分类号 D04H13/00;(IPC1-7):B32B27/00 主分类号 D04H13/00
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