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    Method for incrementally stretching zero strain stretch laminate web in a non-uniform manner to impart a varying degree of elasticity thereto
    2.
    发明授权
    Method for incrementally stretching zero strain stretch laminate web in a non-uniform manner to impart a varying degree of elasticity thereto 失效
    用于在非均匀分布中增加零应变层压板网的方法，以改变其变形程度

    公开(公告)号：US5156793A

    公开(公告)日：1992-10-20

    申请号：US662537

    申请日：1991-02-28

    申请人： Kenneth B. Buell ,  Gerald M. Weber ,  James R. Mick ,  James W. Richardson

    发明人： Kenneth B. Buell ,  Gerald M. Weber ,  James R. Mick ,  James W. Richardson

    IPC分类号： A61F13/49 ,  A61F5/44 ,  A61F13/15 ,  B29C55/02 ,  B29C55/04 ,  B29C55/06 ,  B29C55/08 ,  B29C55/10 ,  B29C55/18 ,  B29K21/00 ,  B29L31/48

    CPC分类号： B29C55/18 ,  A61F13/15593 ,  B29C55/023 ,  B29C55/08

    摘要： A "zero strain" stretch laminate web exhibiting a non-uniform degree of elasticity, as measured in the direction of elasticization at various points along an axis oriented substantially perpendicular to the direction of elasticization. Improved method and apparatus for non-uniformly stretching "zero strain" stretch laminate webs to impart elasticity thereto in the direction of stretching, at least up to the point of initial stretching are also disclosed. The "zero strain" stretch laminate material is formed of at least two plies of material which are either intermittently or substantially continuously secured to one another along at least a portion of their coextensive surfaces while in a substantially untensioned ("zero strain") condition. One of the plies is stretchable and elastomeric, while the second ply is elongatable, but not necessarily elastomeric. The second ply will, upon stretching of the laminate, be at least to a degree permanently elongated so that, upon release of the applied tensile forces, it will not return to its original undistorted configuration. This results in z-direction bulking of the laminate web when the applied tension is released as well as elastic extensibility in the direction of initial stretching, at least up to the point of initial stretching. In a particularly preferred embodiment of the present invention, the mechanical stretching of said laminate web is carried out by passing said laminate web between at least one pair of meshing corrugated rolls, the degree of meshing between said corrugated rolls being non-uniform about the periphery of said rolls, whereby said laminate web is subjected to non-uniform incremental stretching as it passes therebetween to produce a varying degree of elasticity in the resultant web.

    摘要翻译： 在沿着基本上垂直于弹性化方向定向的轴的各个点处沿弹性方向测量的“零应变”拉伸层压纤维网呈现不均匀的弹性。 还公开了用于非均匀拉伸“零应变”拉伸层压纤维网以在拉伸方向上弹性至少达到初始拉伸点的改进方法和装置。 “零应变”拉伸层压材料由至少两层材料形成，它们在基本上未张紧（“零应变”）条件下，沿其共同延伸表面的至少一部分间断地或基本上连续固定。 其中一层是可拉伸和弹性的，而第二层是可伸长的，但不一定是弹性的。 第二层将在拉伸层压体时至少达到一定程度的永久拉长，使得在释放所施加的拉伸力时，其将不会返回到其原始的未失真构型。 这导致当施加的张力被释放以及在初始拉伸方向上的弹性延伸性时，至少直到初始拉伸点，层压纤维网的z方向膨胀。 在本发明的一个特别优选的实施方案中，所述层压纤维网的机械拉伸通过使所述层压纤维网在至少一对啮合波纹辊之间通过，所述波纹辊之间的啮合程度在周边上是不均匀的 的所述辊，由此所述层压纤维网在其间经过不均匀的增量拉伸，以在所得纤维网中产生不同程度的弹性。

    Method for attaching discrete, stretched elastic strands to predetermined isolated portions of disposable absorbent products
    4.
    依法登记的发明
    Method for attaching discrete, stretched elastic strands to predetermined isolated portions of disposable absorbent products 失效
    将分离的拉伸的弹性线束连接到一次性吸收产品的预定隔离部分的方法

    公开(公告)号：USH1420H

    公开(公告)日：1995-02-07

    申请号：US876338

    申请日：1992-04-30

    申请人： James W. Richardson

    发明人： James W. Richardson

    IPC分类号： A61F13/49 ,  A61F5/44 ,  A61F13/15 ,  C09J5/00 ,  A61F13/16 ,  A32B31/00

    CPC分类号： A61F13/49009 ,  A61F13/15593 ,  A61F13/491 ,  A61F2013/49025 ,  A61F2013/49031

    摘要： In accordance with the present invention, a method for attaching discrete portions of stretched elastic strands to predetermined isolated portions of disposable absorbent articles having obstructing elements positioned thereon in the areas where the elastic strands are to be unattached to the disposable absorbent article, is provided. In a preferred embodiment, discrete portions of stretched, continuous elastic strands are attached to predetermined isolated portions of a continuous diaper web having obstructing elements positioned thereon in the areas where the continuous elastic strands are to be unattached to the continuous diaper web. A disposable absorbent article made in accordance to the above described method is also provided.

    摘要翻译： 根据本发明，提供了一种将拉伸的弹性线的分立部分连接到预定隔离部分的一次性吸收制品的方法，所述隔离部分具有位于其上的阻挡元件，所述区域中的弹性线束将不连接到一次性吸收制品。 在优选实施例中，拉伸的连续弹性线的分立部分连接到连续的尿布网的预定的隔离部分上，所述连续的尿布网具有位于其上的阻挡元件，在连续的弹性线不连接到连续的尿布网的区域中。 还提供了根据上述方法制成的一次性吸收制品。

    Method for incrementally stretching a zero strain stretch laminate web to impart elasticity thereto
    5.
    发明授权
    Method for incrementally stretching a zero strain stretch laminate web to impart elasticity thereto 失效
    用于增加零应变拉伸层压网的方法来提高弹性

    公开(公告)号：US5167897A

    公开(公告)日：1992-12-01

    申请号：US662536

    申请日：1991-02-28

    申请人： Gerald M. Weber ,  William R. Vinnage, Jr. ,  Douglas H. Benson ,  David A. Sabatelli ,  James W. Richardson

    发明人： Gerald M. Weber ,  William R. Vinnage, Jr. ,  Douglas H. Benson ,  David A. Sabatelli ,  James W. Richardson

    IPC分类号： A61F13/49 ,  A61F5/44 ,  A61F13/15 ,  A61F13/496 ,  B29C55/02 ,  B29C55/04 ,  B29C55/06 ,  B29C55/08 ,  B29C55/10 ,  B29C55/18 ,  B29C59/04 ,  B29K21/00 ,  B29L31/48 ,  B32B5/24 ,  B32B37/00

    CPC分类号： A61F13/15593 ,  B29C55/023 ,  B29C55/085 ,  B29C55/18

    摘要： An improved method and apparatus for incrementally stretching "zero strain" stretch laminate webs to impart elasticity thereto in the direction of initial stretching, at least up to the point of initial stretching. The "zero strain" stretch laminate material is formed of at least two plies of material which are either intermittently or substantially continuously secured to one another along at least a portion of their coextensive surfaces while in a substantially untensioned ("zero strain") condition. One of the plies is stretchable and elastomeric, while the second ply is elongatable, but not necessarily elastomeric. The second ply will, upon stretching of the laminate, be at least to a degree permanently elongated so that, upon release of the applied tensile forces, it will not return to its original undistorted configuration. This results in z-direction bulking of the laminate web when the applied tension is released as well as subsequent elastic extensibility in the direction of initial stretching, at least up to the point of initial stretching. In a particularly preferred embodiment of the present invention the opposed peripheral edge portions of the laminate web to be incrementally stretched are subjected to restraint to substantially prevent inwardly directed slippage or contraction thereof in a direction parallel to the direction of stretching. This maximizes the effectiveness of the incremental web stretching operation by forcing the "zero strain" stretch laminate web to undergo the fullest possible degree of elongation during the incremental stretching operation.

    摘要翻译： 一种改进的方法和装置，用于递增地拉伸“零应变”拉伸层压纤维网，以在初始拉伸的方向上赋予弹性，至少直到初始拉伸。 “零应变”拉伸层压材料由至少两层材料形成，它们在基本上未张紧（“零应变”）条件下，沿其共同延伸表面的至少一部分间断地或基本上连续固定。 其中一层是可拉伸和弹性的，而第二层是可伸长的，但不一定是弹性的。 第二层将在拉伸层压体时至少达到一定程度的永久拉长，使得在释放所施加的拉伸力时，其将不会返回到其原始的未失真构型。 这导致当施加的张力释放时层压纤维网的z方向膨胀以及在初始拉伸方向上的随后的弹性延展性，至少直到初始拉伸。 在本发明的一个特别优选的实施例中，要逐渐拉伸的层压纤维网的相对的周边边缘部分受到约束，以基本上防止沿着与拉伸方向平行的方向向内的滑动或收缩。 通过迫使“零应变”拉伸层压纤维网在增量拉伸操作期间经历最大可能的伸长程度，使增量幅材拉伸操作的效果最大化。

    Method for sequentially stretching zero strain stretch laminate web to impart elasticity thereto without rupturing the web
    6.
    发明授权
    Method for sequentially stretching zero strain stretch laminate web to impart elasticity thereto without rupturing the web 失效
    用于逐渐拉伸零应变拉伸层的方法，以便在不破坏网页的情况下进行弹性

    公开(公告)号：US5143679A

    公开(公告)日：1992-09-01

    申请号：US662543

    申请日：1991-02-28

    申请人： Gerald M. Weber ,  James W. Richardson

    发明人： Gerald M. Weber ,  James W. Richardson

    IPC分类号： A61F13/49 ,  A61F5/44 ,  A61F13/15 ,  A61F13/496 ,  B29C55/02 ,  B29C55/06 ,  B29C55/08 ,  B29C55/10 ,  B29C55/18 ,  B29C59/04 ,  B29K21/00 ,  B29L9/00 ,  B32B5/24 ,  B32B37/00

    CPC分类号： B29C55/18 ,  A61F13/15593 ,  A61F13/15707 ,  B29C55/023 ,  B29C55/085 ,  A61F2013/15821

    摘要： An improved method and apparatus for incrementally stretching "zero strain" stretch laminate webs to impart elasticity thereto in the direction of stretching, at least up to the point of initial stretching. The "zero strain" stretch laminate material is formed of at least two plies of material which are either intermittently or substantially continuously secured to one another along at least a portion of their coextensive surfaces while in a substantially untensioned ("zero strain") condition. One of the plies is stretchable and elastomeric, while the second ply is elongatable, but not necessarily elastomeric. The second ply will, upon stretching of the laminate, be at least to a degree permanently elongated so that, upon release of the applied tensile forces, it will not return to its original undistorted configuration. This results in z-direction bulking of the laminate web when the applied tension is released as well as subsequent elastic extensibility in the direction of initial stretching, at least up to the point of initial stretching. In a particularly preferred embodiment of the present invention, the mechanical stretching operation is carried out by passing said laminate web between multiple pairs of meshing corrugated rolls, each pair of rolls exhibiting a greater degree of meshing than the preceding pair, to sequentially stretch said web in stages. Sequentially stretching the web in the foregoing manner minimizes damage to the web.

    摘要翻译： 一种改进的方法和装置，用于递增地拉伸“零应变”拉伸层压纤维网，以在拉伸方向至少直到初始拉伸点赋予弹性。 “零应变”拉伸层压材料由至少两层材料形成，它们在基本上未张紧（“零应变”）条件下，沿其共同延伸表面的至少一部分间断地或基本上连续固定。 其中一层是可拉伸和弹性的，而第二层是可伸长的，但不一定是弹性的。 第二层将在拉伸层压体时至少达到一定程度的永久拉长，使得在释放所施加的拉伸力时，其将不会返回到其原始的未失真构型。 这导致当施加的张力释放时层压纤维网的z方向膨胀以及在初始拉伸方向上的随后的弹性延展性，至少直到初始拉伸。 在本发明的一个特别优选的实施方案中，机械拉伸操作是通过使多层啮合的波纹辊之间通过所述层压纤维网而进行的，每对辊与前一对相比呈现较大程度的啮合， 分阶段 以上述方式连续地拉伸幅材使得对网的损坏最小化。