Coextruded three-dimensional fluid-pervious plastic web
    3.
    发明授权
    Coextruded three-dimensional fluid-pervious plastic web 失效
    共挤出三维透液塑料网

    公开(公告)号:US5342334A

    公开(公告)日:1994-08-30

    申请号:US42345

    申请日:1993-04-02

    摘要: The present invention provides an absorbent article including a fluid pervious topsheet, a fluid impervious backsheet joined to the topsheet, and an intermediate layer positioned between the topsheet and the backsheet. The topsheet comprises: a resilient, three-dimensional, macroscopically expanded, fluid pervious web including a first polymeric material which exhibits a first melting point temperature and a second polymeric material bonded to the first polymeric material to form a laminate. The second polymeric material exhibits a second melting point temperature which is less than the first melting point temperature. The web has first and second surfaces spaced apart by a distance greater than the thickness of the laminate. The web includes a plurality of capillaries extending from the first surface to the second surface. The capillaries are defined by a plurality of sidewall portions interconnected to one another intermediate the first and the second surfaces and terminating in the second surface, such that when the web is heated to a temperature between the first melting point temperature and the second melting point temperature the second polymeric material of the sidewall thermally bonds to the intermediate layer along the second surface of the web.

    摘要翻译: 本发明提供了一种吸收性物品,其包括流体可透过的顶片,与顶片接合的不透液体的底片,以及位于顶片和底片之间的中间层。 顶片包括:弹性的三维宏观膨胀的可透液体的纤维网,其包括第一聚合物材料,其表现出第一熔点温度,第二聚合物材料与第一聚合物材料结合以形成层压体。 第二聚合物材料具有小于第一熔点温度的第二熔点温度。 纸幅的第一和第二表面间隔开大于层压体厚度的距离。 网状物包括从第一表面延伸到第二表面的多个毛细管。 毛细管由在第一和第二表面之间相互互连并在第二表面中间终止的多个侧壁部分限定,使得当幅材被加热到第一熔点温度和第二熔点温度之间的温度时 侧壁的第二聚合物材料沿着幅材的第二表面热连接到中间层。