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    Process for making a nonwoven web derived from lactic acid, web produced thereby, and apparatus therefor
    2.
    发明授权
    Process for making a nonwoven web derived from lactic acid, web produced thereby, and apparatus therefor 失效
    制造由乳酸得到的非织造纤维网，由此制得的织物的方法及其装置

    公开(公告)号：US5833787A

    公开(公告)日：1998-11-10

    申请号：US542168

    申请日：1995-10-12

    申请人： Philippe Ehret ,  Philippe Guipouy ,  Kimmo Lahtenkorva

    发明人： Philippe Ehret ,  Philippe Guipouy ,  Kimmo Lahtenkorva

    IPC分类号： D01F6/62 ,  C08G63/06 ,  D04H1/42 ,  D04H1/435 ,  D04H1/54 ,  D04H1/556 ,  D04H3/14 ,  D04H3/16

    CPC分类号： D04H1/435 ,  D04H1/54 ,  D04H1/556 ,  D04H3/14 ,  D04H3/16

    摘要： The invention relates to a process for the manufacture of a nonwoven web using filaments of melted polymers, of the type including the steps of spinning the polymer or polymers, of cooling, drawing and laying down fibers on a belt and of bonding said fibers by calendering in order to form said nonwoven web (15), which process furthermore includes a treatment (13, 14) of setting/adjusting the degree of crystallinity of and the internal tension in the fibers making up the nonwoven web. The invention also relates to the nonwovens obtained by the process and to the installations for implementing it.

    摘要翻译： 本发明涉及使用熔融聚合物长丝制造非织造纤维网的方法，其包括纺丝聚合物或聚合物的步骤，在带上冷却，拉伸和铺放纤维，并通过压延粘合所述纤维 为了形成所述非织造纤维网（15），该方法还包括设置/调节构成非织造纤维网的纤维的结晶度和内部张力的处理（13,14）。 本发明还涉及通过该方法获得的无纺布和用于实施该无纺布的装置。