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    Method for selectively aperturing a nonwoven web exhibiting surface energy gradients
    1.
    发明授权
    Method for selectively aperturing a nonwoven web exhibiting surface energy gradients 失效
    用于选择性地打开呈现表面能量梯度的非织造纤维网的方法

    公开(公告)号：US5658639A

    公开(公告)日：1997-08-19

    申请号：US536227

    申请日：1995-09-29

    申请人： John J. Curro ,  Douglas H. Benson ,  James W. Cree ,  Luis E. Ravaglia

    发明人： John J. Curro ,  Douglas H. Benson ,  James W. Cree ,  Luis E. Ravaglia

    IPC分类号： A61F13/511 ,  A61F5/44 ,  A61F13/00 ,  A61F13/15 ,  A61F13/49 ,  D04H1/54 ,  D06M15/643 ,  D06M15/70 ,  B05D5/00 ,  B32B5/02 ,  B32B33/00

    CPC分类号： A61F13/15731 ,  A61F13/00991 ,  Y10T428/24273

    摘要： The present invention pertains, in a preferred embodiment, to a method for selectively aperturing a nonwoven web exhibiting a plurality of surface energy gradients. The method includes the steps of: providing a nonwoven web of fibers exhibiting a surface energy, the nonwoven web having a first surface, a second surface and a plurality of fluid passageways placing the first and second surfaces in fluid communication with one another; applying a surface treatment to the first surface of the nonwoven web, the surface treatment having a surface energy less than the surface energy of the fibers of the nonwoven web creating a plurality of surface energy gradients defined by discontinuous, spaced regions which are adapted to exert a force on a fluid contacting the first surface, such that the fluid will be directed toward the fluid passageways for transportation away from the first surface and in the direction of the second surface; weakening the nonwoven web at a plurality of locations creating a plurality of weakened, melt-stabilized locations; and applying a tensioning force to the nonwoven web to cause the nonwoven web to rupture at the plurality of weakened, melt-stabilized locations creating a plurality of apertures in the nonwoven web coincident with the plurality of weakened, melt-stabilized locations. The web is particularly well suited for use as a topsheet on a disposable absorbent article.

    摘要翻译： 在优选实施例中，本发明涉及用于选择性地打开呈现多个表面能量梯度的非织造纤维网的方法。 该方法包括以下步骤：提供呈现表面能的纤维的非织造纤维网，所述非织造纤维网具有第一表面，第二表面和多个流体通道，所述第一表面和第二表面彼此流体连通; 对非织造纤维网的第一表面施加表面处理，表面处理具有小于非织造纤维网的纤维的表面能的表面能，产生由不连续的间隔区域限定的多个表面能量梯度，其适于发挥 接触第一表面的流体上的力，使得流体将被引导到流体通道，以便从第一表面和第二表面的方向输送; 在多个位置处弱化非织造纤维网，从而形成多个弱化的，熔融稳定的位置; 以及向所述非织造纤维网施加张紧力以使所述非织造纤维网在所述多个弱化的熔融稳定位置处破裂，从而在所述非织造纤维网中产生与所述多个弱化的熔融稳定位置重合的多个孔。 网特别适合用作一次性吸收制品上的顶片。

    Method for forming a nonwoven web exhibiting surface energy gradients and increased caliper
    3.
    发明授权
    Method for forming a nonwoven web exhibiting surface energy gradients and increased caliper 失效
    形成具有表面能量梯度和增加的卡尺的非织造纤维网的方法

    公开(公告)号：US5932316A

    公开(公告)日：1999-08-03

    申请号：US122260

    申请日：1998-07-24

    申请人： James W. Cree ,  Luis E. Ravaglia

    发明人： James W. Cree ,  Luis E. Ravaglia

    IPC分类号： A61F13/511 ,  A61F5/44 ,  A61F13/00 ,  A61F13/15 ,  A61F13/49 ,  D04H1/44 ,  D06M15/70 ,  B32B3/28

    CPC分类号： A61F13/512 ,  A61F13/15577 ,  A61F13/51305 ,  D04H1/44 ,  Y10T428/24628 ,  Y10T428/24694 ,  Y10T428/24802 ,  Y10T442/102 ,  Y10T442/2164 ,  Y10T442/218 ,  Y10T442/2189

    摘要： The present invention pertains, in a preferred embodiment, to a method for forming a nonwoven web exhibiting a plurality of surface energy gradients. The method includes the steps of: providing a nonwoven web of fibers exhibiting a surface energy, the nonwoven web having a first surface, a second surface, a caliper, and a plurality of fluid passageways placing the first and second surfaces in fluid communication with one another; applying a surface treatment to the first surface of the nonwoven web, the surface treatment having a surface energy less than the surface energy of the fibers of the nonwoven web creating a plurality of surface energy gradients defined by discontinuous, spaced regions which are adapted to exert a force on a fluid contacting the first surface, such that the fluid will be directed toward the fluid passageways for transportation away from the first surface and in the direction of the second surface; and increasing the caliper of the nonwoven web by feeding the nonwoven web between a first pressure applicator and a second pressure applicator each having three-dimensional surfaces which at least to a degree are complementary to one another. The nonwoven web is particularly well suited for use as a topsheet on a disposable absorbent article.

    摘要翻译： 在优选实施方案中，本发明涉及形成具有多个表面能量梯度的非织造纤维网的方法。 该方法包括以下步骤：提供表现出表面能的纤维的非织造纤维网，非织造纤维网具有第一表面，第二表面，厚度和多个流体通道，将第一和第二表面与一个流体连通 另一个; 对非织造纤维网的第一表面施加表面处理，表面处理具有小于非织造纤维网的纤维的表面能的表面能，产生由不连续的间隔区域限定的多个表面能量梯度，其适于发挥 接触第一表面的流体上的力，使得流体将被引导到流体通道，以便从第一表面和第二表面的方向输送; 以及通过在第一压力施加器和第二压力施加器之间馈送所述非织造纤维网来增加所述非织造纤维网的厚度，所述第一压力施加器具有至少在一定程度上彼此互补的三维表面。 非织造纤维网特别适合用作一次性吸收制品上的顶片。

    Method and apparatus for making microbubbled and/or microapertured polymeric webs using hydraulic pressure
    4.
    发明授权
    Method and apparatus for making microbubbled and/or microapertured polymeric webs using hydraulic pressure 失效
    使用液压制造微孔和/或微孔聚合物网的方法和装置

    公开(公告)号：US4772444A

    公开(公告)日：1988-09-20

    申请号：US88923

    申请日：1987-08-24

    申请人： John J. Curro ,  Charles W. Chappell ,  James W. Cree

    发明人： John J. Curro ,  Charles W. Chappell ,  James W. Cree

    IPC分类号： A61F13/15 ,  B29C51/22 ,  B29C59/02 ,  B29C59/04 ,  B29C69/02

    CPC分类号： A61F13/51476 ,  A61F13/5146 ,  B29C51/22 ,  B29C51/225 ,  B29C59/022 ,  A61F2013/51411 ,  A61F2013/51472 ,  A61F2013/51492 ,  B29C2059/023

    摘要： A method for hydraulically deforming a web of polymeric film while the film is supported on a moving forming structure to produce a novel microbubbled substantially fluid-impervious web exhibiting substantially the same consumer preferred soft and silky tactile impression and reduced noise generation levels heretofore only achievable in microapertured, and hence substantially fluid pervious polymeric webs. In a particularly preferred embodiment, the microbubbled polymeric web exhibits a fine-scale pattern of discrete mushroom shaped surface aberrations, each of said surface aberrations having its amplitude oriented substantially perpendicular to the surface in which the surface aberration originates. The method may also be utilized to produce fluid pervious microapertured webs which are known in the art. Apparatus for producing microbubbled and/or microapertured webs either in "planar" or "macroscopically expanded" form are also disclosed.

    摘要翻译： 一种用于在将膜支撑在移动的成形结构上的液压变形聚合物膜的方法，以产生基本上相同的消费者优选的柔软和丝滑的触觉印象，并且降低的噪声产生水平迄今只能在 微孔，因此基本上是流体可透过的聚合物网。 在特别优选的实施方案中，微泡聚合物纤维网呈现离散的蘑菇形表面像差的细微尺度图案，每个所述表面像差具有其基本上垂直于表面像差起始的表面定向的幅度。 该方法还可用于生产本领域已知的流体可渗透的微孔腹板。 还公开了以“平面”或“宏观扩展”形式生产微孔和/或微孔腹板的装置。

    Three-dimensional highly elastic film/non-woven composite
    8.
    发明授权
    Three-dimensional highly elastic film/non-woven composite 有权
    三维高弹性薄膜/无纺布复合材料

    公开(公告)号：US06720279B2

    公开(公告)日：2004-04-13

    申请号：US10322013

    申请日：2002-12-17

    申请人： James W. Cree ,  Jeffrey A. Middlesworth ,  Stephen D. Bruce

    发明人： James W. Cree ,  Jeffrey A. Middlesworth ,  Stephen D. Bruce

    IPC分类号： B32B2712

    CPC分类号： A61F13/51464 ,  A61F13/5146 ,  B32B5/02 ,  B32B7/04 ,  Y10T156/1057 ,  Y10T428/24322 ,  Y10T428/2481 ,  Y10T428/24826 ,  Y10T442/166 ,  Y10T442/601 ,  Y10T442/602 ,  Y10T442/643 ,  Y10T442/654 ,  Y10T442/66 ,  Y10T442/674 ,  Y10T442/681

    摘要： A three-dimensional highly elastic film/non-woven composite having a fluid and air impervious core layer and a first and second consolidated layer. The consolidated layers have unidirectional and non-unidirectional fibers. The composite is formed by laminating the air and fluid impermeable elastic core layer between the two layers of consolidated non-wovens. The resulting composite stretches only in the cross-machine direction due to the unidirectional properties of the consolidated non-woven material. The layers are then point bonded or welded together. Preferably the layers are welded by passing the composite between an ultrasonic horn and an ultrasonic bond roll having raised areas for effecting the weld points. A thin inelastic membrane is formed at each of the weld points. The welded composite may then be pre-stretched to rupture the membranes, thereby creating apertures, which makes the composite permeable.

    摘要翻译： 一种三维高弹性薄膜/非编织复合材料，其具有不透流体和不透气的芯层以及第一和第二固化层。 固结层具有单向和非单向纤维。 复合材料通过在两层合并的无纺布之间层压空气和流体不可渗透的弹性芯层来形成。 由于固结无纺材料的单向特性，所得复合材料仅在横向方向上延伸。 然后将层点接合或焊接在一起。 优选地，通过使复合材料在超声波喇叭和具有用于实现焊接点的凸起区域的超声波接合辊之间进行焊接。 在每个焊接点处形成薄的非弹性膜。 然后可以将焊接的复合材料预拉伸以破坏膜，从而产生孔，这使得复合材料可渗透。