公开(公告)号：US5817079A

公开(公告)日：1998-10-06

申请号：US195894

申请日：1994-02-10

申请人： Roger Bergquist ,  Peter Jackson ,  Subramanian Srinivasan ,  Martin Wislinski ,  Edmund DeRossett ,  James A. Bradstreet ,  Philip Stevenson ,  Schmuel Dabi

发明人： Roger Bergquist ,  Peter Jackson ,  Subramanian Srinivasan ,  Martin Wislinski ,  Edmund DeRossett ,  James A. Bradstreet ,  Philip Stevenson ,  Schmuel Dabi

IPC分类号： A61F13/15 ,  A61F13/475 ,  A61F13/53 ,  A61L15/52

CPC分类号： A61F13/4755 ,  A61F13/15626 ,  A61F13/4758 ,  A61F13/535 ,  A61F13/536 ,  A61F13/539 ,  A61F2013/49074 ,  A61F2013/51042 ,  A61F2013/530233 ,  A61F2013/53024 ,  A61F2013/530262 ,  A61F2013/530284 ,  A61F2013/530328 ,  A61F2013/530481 ,  A61F2013/53054 ,  Y10T428/249945 ,  Y10T428/249952 ,  Y10T428/31801

摘要： In absorbent products, such as sanitary napkins, discreet areas of dry fibrous materials such as fluid-repellent materials are precisely placed in various planes within the product so as to provide barriers to bodily fluid leakage from the product. In a preferred embodiment, hydrophobic fibers are placed around the periphery of a central absorbent area of an absorbent product to discourage and/or prevent side or end leakage from the product.

摘要翻译： 在诸如卫生巾的吸收产品中，诸如防液体材料的干燥纤维材料的谨慎区域被精确地放置在产品内的各种平面中，以便产生从产品泄漏的体液的障碍。 在优选的实施方案中，疏水性纤维被放置在吸收产品的中心吸收区域的周边周围，以阻止和/或防止产品的侧面或端部泄漏。

公开(公告)号：US5004579A

公开(公告)日：1991-04-02

申请号：US359011

申请日：1989-05-26

申请人： Martin Wislinski ,  Roger Bergquist ,  Manfred Schroeder ,  Theodore Weir ,  Matthew Monetti ,  Paul Fung

发明人： Martin Wislinski ,  Roger Bergquist ,  Manfred Schroeder ,  Theodore Weir ,  Matthew Monetti ,  Paul Fung

IPC分类号： A61F13/15 ,  B31D1/04 ,  D01G25/00 ,  D04H1/70

CPC分类号： A61F13/15577 ,  A61F13/15626 ,  B31D1/04 ,  D04H1/732 ,  A61F2013/15926

摘要： Apparatus and methods for forming improved airlaid fibrous articles are disclosed. Airlaying apparatus is provided which permits at least two types of fibrous materials to be defiberized and transported to a single airlaying apparatus. In a most preferred embodiment, a drum-type airlaying drum having a plurality of deposition cavities is provided. By controlling the airflow and pressure differential, selective placement of each type of fibrous material within a cavity is achieved. Also disclosed are improved deposition cavities which permit multiple materials to be airlaid and retained in position by providing a foraminous surface on at least a portion of the cavity sidewall. Most preferably, a hydrophobic fiber layer is formed and a layer of absorbent fiber is deposited within the first layer; the present invention permits a clear demarcation between the fiber types. Also disclosed is improved apparatus for removing airlaid articles from deposition cavities, using a precisely controlled airstream. Improved methods of making airlaid articles by regulating process parameters and using the improved apparatus of the present invention are also disclosed.