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    Patents

    Absorbent Body in Absorbent Article and Method for Producing the Same:

    U.S. Patent No. 9,622,923

    07.31.17
    Hiroki Goda, Kagawa, Japan; Shinichi Ishikawa, Kagawa, Japan; Kengo Ochi, Kagawa, Japan; Koichiro Mitsui, Kagawa, Japan; Masashi Nakashita, Kagawa, Japan; and Satoru Tange, Kagawa, Japan.
    Assigned to Unicharm Corporation, Ehime, Japan.

    Filed: 10/17/13
    Issued: 4/18/17

    A method for producing an absorbent body for an absorbent article including the absorbent core material containing therein hydrophilic fibers and superabsorbent polymer particles and covered with at least partially liquid-permeable cover sheet, wherein: in a step of forming a first liquid absorbent layer containing the hydrophilic fibers and the superabsorbent polymer particles in a mixed state and a second liquid absorbent layer containing the hydrophilic fibers but none of the superabsorbent polymer particles so that these two liquid absorbent layers overlap with each other on a support running in a machine direction, the hydrophilic fibers are dispersed toward the support within a chamber partially covering the support and the superabsorbent polymer particles are dispersed toward the support from an opening of a dispersing pipe set at least one of inside and outside the chamber wherein a distance dimension between the dispersing pipe set inside the chamber and the support is in a range of 5 to 20 mm and a distance dimension between the dispersing pipe set outside the chamber and the support is in a range of 5 to 100 mm; and the dispersing pipe set outside the chamber is set at least one of upstream and downstream in the machine direction of the chamber.
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    • superabsorbent polymer
    • Mitsui
    • core
    • hydrophilic
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    Related Patents

    • Disposable Diaper:

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    • Absorbent Article with Topsheet, Top-Layer Sheet and Compressing Portions:

      U.S. Patent No. 9,622,921
      07.31.17

    • Apparatus for Manufacturing Absorbent Articles and Method for Manufacturing Absorbent Articles:

      U.S. Patent No. 9,622,917
      07.31.17

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