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    Absorbent cores and methods for forming absorbent cores
    2.
    发明授权
    Absorbent cores and methods for forming absorbent cores 有权

    公开(公告)号：US11311424B2

    公开(公告)日：2022-04-26

    申请号：US17110978

    申请日：2020-12-03

    申请人： Kimberly-Clark Worldwide, Inc.

    发明人： Michael B. Venturino ,  Joseph J. Sina

    IPC分类号： A61F13/539 ,  A61F13/15 ,  A61F13/535 ,  B32B5/16 ,  B32B7/12 ,  A61F13/53 ,  B32B37/24 ,  B32B37/12 ,  B32B38/18

    摘要： Pulpless absorbent cores and methods of manufacture are disclosed. A method of forming a pulpless absorbent core may comprise moving a foraminous forming surface having un-masked portions and masked portions in a machine direction, the un-masked portions defining an absorbent core region. The method may further comprise depositing particulate material at a velocity of less than 1200 meters per minute in the absorbent core region while applying a vacuum. The absorbent core region may comprise: a front core region spanning a first half of the absorbent core region and a rear core region spanning a second half, wherein the front core region trails the rear core region in the machine direction, and the masked portions of the foraminous forming surface block airflow through the forming surface to cause greater than 60% of the particulate material deposited in the absorbent core region to locate in the front core region.

    ABSORBENT CORES AND METHODS FOR FORMING ABSORBENT CORES
    3.
    发明申请
    ABSORBENT CORES AND METHODS FOR FORMING ABSORBENT CORES 审中-公开

    公开(公告)号：US20200289342A1

    公开(公告)日：2020-09-17

    申请号：US16086033

    申请日：2018-03-31

    申请人： KIMBERLY-CLARK WORLDWIDE, INC.

    发明人： Michael B. Venturino ,  David B. Walbrun ,  Rodney L. Miller, Jr. ,  Brandon B. Kussow ,  Joseph J. Sina

    IPC分类号： A61F13/535 ,  A61F13/15

    摘要： Pulpless absorbent cores and methods of manufacture are disclosed. A first exemplary absorbent core may comprise a carrier sheet having a first edge region, a central region, and a second edge region and particulate material disposed on the carrier sheet through the first edge region, the central region, and the second edge region. The absorbent core may additionally have an absorbent core width and the central region may have a central region width, and the central width may comprise between 33% and 75% of the absorbent core width. Further, the central region may comprise an average basis weight of particulate material that is at least 110% of an average basis weight of particulate material within at least one of the left edge region and the right edge region.

    ABSORBENT CORES AND METHODS FOR FORMING ABSORBENT CORES
    4.
    发明申请
    ABSORBENT CORES AND METHODS FOR FORMING ABSORBENT CORES 审中-公开

    公开(公告)号：US20190105203A1

    公开(公告)日：2019-04-11

    申请号：US16086842

    申请日：2016-03-31

    申请人： Kimberly-Clark Worldwide, Inc.

    发明人： Michael B. Venturino ,  David B. Walbrun ,  Joseph J. Sina ,  Michael J. Niemeyer

    IPC分类号： A61F13/15 ,  D04H1/425

    摘要： Pulpless absorbent cores and methods of manufacture are disclosed. A first exemplary method may comprise advancing a base carrier sheet in a machine direction, applying a first adhesive onto a top surface of the base carrier sheet, advancing the base carrier sheet within a first particulate material delivery chamber, depositing a first amount of particulate material onto the first adhesive within the first particulate material delivery chamber, applying a second adhesive onto the first amount of particulate material outside of the first particulate material delivery chamber, advancing the base carrier sheet with the first adhesive, the first amount of particulate material, and the second adhesive into a second particulate material delivery chamber, depositing a second amount of particulate material onto the second adhesive within the second particulate material delivery chamber, and applying a top carrier sheet onto the second amount of particulate material.

    Absorbent cores and methods for forming absorbent cores
    8.
    发明授权
    Absorbent cores and methods for forming absorbent cores 有权

    公开(公告)号：US11246769B2

    公开(公告)日：2022-02-15

    申请号：US16086033

    申请日：2016-03-31

    申请人： Kimberly-Clark Worldwide, Inc.

    发明人： Michael B. Venturino ,  David B. Walbrun ,  Rodney L. Miller, Jr. ,  Brandon B. Kussow ,  Joseph J. Sina

    IPC分类号： A61F13/535 ,  A61F13/15 ,  A61F13/53 ,  A61F13/539 ,  A61F13/51

    摘要： Pulpless absorbent cores and methods of manufacture are disclosed. A first exemplary absorbent core may comprise a carrier sheet having a first edge region, a central region, and a second edge region and particulate material disposed on the carrier sheet through the first edge region, the central region, and the second edge region. The absorbent core may additionally have an absorbent core width and the central region may have a central region width, and the central width may comprise between 33% and 75% of the absorbent core width. Further, the central region may comprise an average basis weight of particulate material that is at least 110% of an average basis weight of particulate material within at least one of the left edge region and the right edge region.