Dry chemically bound nonwovens which are flushable and dispersible
    1.
    发明申请
    Dry chemically bound nonwovens which are flushable and dispersible 失效
    干性化学结合的无纺布,其是可冲洗和可分散的

    公开(公告)号:US20070015423A1

    公开(公告)日:2007-01-18

    申请号:US11181051

    申请日:2005-07-14

    IPC分类号: B32B27/02 B32B5/02 B32B27/30

    摘要: This invention is directed to methods of incorporating a trigger such as boric acid, boric acid salts, sodium sulfate, or other salts, into a nonwoven web substrate for the preparation of dry nonwoven products which are redispersible when put in contact with large amounts of water or liquid. In one method, the trigger is in a dry powder form and is incorporated into the nonwoven fibers followed by treatment of the fibers with an aqueous redispersible binder, and binding and drying the web. Another method is to saturate a dry bonded nonwoven web with an aqueous solution of the trigger and then dry the saturated web. Yet another method is to apply an aqueous solution of the trigger to the web followed by applying a redispersible aqueous binder to the web and then heating and drying the web.

    摘要翻译: 本发明涉及将诸如硼酸,硼酸盐,硫酸钠或其它盐的触发剂掺入到非织造纤维网基材中以制备当与大量水接触时可再分散的干燥非织造产品的方法 或液体。 在一种方法中,触发剂是干粉形式并且被并入非织造纤维中,然后用水分式可再分散粘合剂处理纤维,并结合并干燥纤维网。 另一种方法是用触发器的水溶液使干燥的粘合的非织造纤维网饱和,然后干燥饱和的网。 另一种方法是将触发剂的水溶液施加到幅材上,然后将可再分散的水性粘合剂施加到幅材上,然后加热和干燥幅材。