Method of modifying a nonwoven fibrous web for use as a component of a disposable absorbent article
    3.
    发明申请
    Method of modifying a nonwoven fibrous web for use as a component of a disposable absorbent article 审中-公开
    修改用作一次性吸收制品的组分的非织造纤维网的方法

    公开(公告)号:US20020105110A1

    公开(公告)日:2002-08-08

    申请号:US10071001

    申请日:2002-02-07

    IPC分类号: B29C055/08 A61F013/15

    摘要: An economical method is disclosed for modifying the physical characteristics of a nonwoven fibrous web which involves passing the web between at least one pair of interengaged rolls to incrementally stretch the web, and then withdrawing the incrementally stretched web from between the rolls under tension. A web modified according to the disclosed method has advantageous elongation, extensibility and strength properties, as well as other desirable characteristics. In another aspect, a method is disclosed for forming a composite material by combining a modified nonwoven web with a polymeric film, or an elastic member, which may be liquid impervious yet breathable. In yet other aspect, a method is disclosed for forming a composite material by combining a modified web with a polymeric film which is rendered liquid-impervious yet breathable while the method is performed. The modified nonwoven webs and composite materials made according to the disclosed methods may be advantageously employed in absorbent articles such as disposable diapers.

    摘要翻译: 公开了一种用于改变非织造纤维网的物理特性的经济方法,其涉及使纤维网在至少一对相互接合的辊之间通过以递增地拉伸纤维网,然后在张力下从辊之间撤出递增拉伸的纤维网。 根据所公开的方法改性的纤维网具有有利的伸长率,延展性和强度性能以及其它所需的特性。 在另一方面,公开了一种通过将改性非织造纤维网与聚合物薄膜组合复合材料的方法,或弹性构件,其可以是液体不可透过的而且是透气的。 在另一方面,公开了一种用于通过将改性纤维网与聚合物膜组合来形成复合材料的方法,该聚合物膜在进行该方法时呈现为液体不渗透性而透气性。 根据所公开的方法制备的改性非织造纤维网和复合材料可有利地用于诸如一次性尿布的吸收制品中。