Liquid barrier nonwoven fabrics with ribbon-shaped fibers

    公开(公告)号:US11274384B2

    公开(公告)日:2022-03-15

    申请号:US13205268

    申请日:2011-08-08

    摘要: A nonwoven fabric useful as a component in a personal hygiene product and a nonwoven personal hygiene component, which is substantially free or free of non-ribbon shaped (e.g., round-shaped) spunbond fibers and includes a meltblown layer between and in direct contact with ribbon-shaped spunbond layers. The meltblown layer has a basis weight of at least about 0.008 gsm and not greater than about 5 gsm, and the nonwoven fabric or component has a basis weight of at least about 8 gsm and not greater than about 40 gsm, a pore size of less than or equal to about 27 microns when measured at 10% of cumulative filter flow. The nonwoven fabric also can have a low surface tension liquid strike through flow of less than 0.9 ml per second, a ratio of low surface tension liquid strike through flow to air permeability of greater than or equal to about 0.016, or both. Personal hygiene articles can incorporate the nonwoven fabric or component.

    LIQUID BARRIER NONWOVEN FABRICS WITH RIBBON-SHAPED FIBERS
    2.
    发明申请
    LIQUID BARRIER NONWOVEN FABRICS WITH RIBBON-SHAPED FIBERS 审中-公开
    液体障碍物非织造织物与RIBBON形状的纤维

    公开(公告)号:US20130041335A1

    公开(公告)日:2013-02-14

    申请号:US13205268

    申请日:2011-08-08

    IPC分类号: A61L15/22

    摘要: A nonwoven fabric useful as a component in a personal hygiene product and a nonwoven personal hygiene component, which is substantially free or free of non-ribbon shaped (e.g., round-shaped) spunbond fibers and includes a meltblown layer between and in direct contact with ribbon-shaped spunbond layers. The meltblown layer has a basis weight of at least about 0.008 gsm and not greater than about 5 gsm, and the nonwoven fabric or component has a basis weight of at least about 8 gsm and not greater than about 40 gsm, a pore size of less than or equal to about 27 microns when measured at 10% of cumulative filter flow. The nonwoven fabric also can have a low surface tension liquid strike through flow of less than 0.9 ml per second, a ratio of low surface tension liquid strike through flow to air permeability of greater than or equal to about 0.016, or both. Personal hygiene articles can incorporate the nonwoven fabric or component.

    摘要翻译: 用作个人卫生用品中的组分的非织造织物和非织造个人卫生部件,其基本上不含或不含非带状(例如圆形)纺粘纤维,并且包括在其间直接接触的熔喷层 带状纺粘层。 熔喷层具有至少约0.008gsm且不大于约5gsm的基重,并且非织造织物或组分的基重至少约8gsm且不大于约40gsm,孔径较小 当在10%的累积过滤器流量下测量时,该温度超过或等于约27微米。 非织造织物还可以具有低表面张力液体,其流速小于0.9ml /秒,低表面张力液体通过流量与透气度之间的比例大于或等于约0.016或两者。 个人卫生用品可以并入无纺织物或组分。

    Methods of making cross-ply microporous membrane battery separator, and
the battery separators made thereby
    3.
    发明授权
    Methods of making cross-ply microporous membrane battery separator, and the battery separators made thereby 失效
    制造交叉层微孔膜电池隔膜的方法和由此制成的电池隔膜

    公开(公告)号:US5667911A

    公开(公告)日:1997-09-16

    申请号:US362048

    申请日:1994-12-22

    摘要: Continuous seamless cross-plied battery separators are formed by bringing at least two anisotropic with respect to mechanical strength (e.g. uniaxially oriented), microporous plies into adhering face contact such that the uniaxial orientation of one microporous ply is angularly biased relative to the other microporous ply (e.g., between 20.degree. to 90.degree.). This biased relationship between the microporous plies is most preferably achieved by spirally or helically slitting a tubular microporous membrane. The plies are adhered to one another with adhesive and/or by means of heat and pressure. The cross-plied battery separators of this invention exhibit increased puncture strength without significant decrease in permeability. As a result, the battery separators of this invention are especially useful in battery cell configurations whereby the battery separator is sandwiched between anode and cathode sheets to form a composite battery cell structure which is then rolled or folded to be placed in a battery cell can.

    摘要翻译: 通过将相对于机械强度(例如单轴取向),微孔层的至少两个各向异性相对于粘合面接触形成连续无缝交叉电池隔板,使得一个微孔层的单轴取向相对于另一微孔层成角度偏置 (例如,20°至90°)。 微孔层之间的这种偏向关系最优选通过螺旋状或螺旋形地切割管状微孔膜来实现。 用粘合剂和/或通过热和压力将层粘在一起。 本发明的交叉电池隔板在穿透强度方面显示出增加的渗透性,而不会显着降低渗透性。 结果,本发明的电池隔板在电池单元结构中特别有用,由此电池隔板夹在阳极和阴极片之间以形成复合电池单元结构,然后将该电池单元结构卷起或折叠以放置在电池单元罐中。