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    Patents

    Manufacturing Apparatus and Manufacturing Method for Manufacturing Composite Sheet Associated with A

    U.S. Patent No. 10,265,220

    06.05.19
    Hiroki Yamamoto, Kagawa, Japan; and Yoshihiko Matsumoto, Kagawa, Japan.
    Assigned to Unicharm Corporation, Ehime, Japan.

    Filed: 10/16/14
    Issued: 4/23/19

    A manufacturing method for manufacturing a composite sheet associated with an absorbent article, the manufacturing being performed by producing a substrate sheet and performing a certain process to the substrate sheet, the substrate sheet including a stretchable sheet and a low-extensible sheet, the low-extensible sheet having an extensibility lower than that of the stretchable sheet, the manufacturing method comprising: producing the substrate sheet by fixing the stretchable sheet to at least the low-extensible sheet, the stretchable sheet continuing along a transporting direction, the stretchable sheet being transported, the stretchable sheet being in an extended state in which the stretchable sheet is extended in the transporting direction; forming a physical reference section on the substrate sheet, the substrate sheet being in a first extended state and being transported; causing the substrate sheet to contract until the substrate sheet becomes in a second extended state whose extension ratio is smaller than an extension ratio of the first extended state, the substrate sheet having the reference section formed on it; and performing the certain process to the substrate sheet, the substrate sheet having contracted and being in the second extended state, causing the substrate sheet to contract including: transporting the substrate sheet in a transport path; detecting the reference section by a sensor and outputting a detection signal by a sensor after the contraction; and altering a transportation state of the substrate sheet in the transport path so that a position in the substrate sheet for the certain process is located close to a target position for the certain process, the altering being performed according to the detection signal of the sensor.
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    • japan
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    • manufacturing
    • composite
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    Disposable Diaper and a Method of Manufacturing a Disposable Diaper: Disposable Diaper and a Method of Manufacturing a Disposable Diaper:
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    Related Patents

    • Three-Dimensional Substrates:

      U.S. Patent No. 10,206,826
      04.05.19

    • Absorbent Article with an Apertured Multi-Layered Topsheet:

      U.S. Patent No. 10,213,347
      04.05.19

    • Absorbent Article:

      U.S. Patent No. 10,195,095
      03.15.19


    • Absorbent Article with a Slitted Absorbent Core:

      U.S. Patent No. 10,195,094
      03.15.19

    • Absorbent Article:

      U.S. Patent No. 10,195,090
      03.15.19

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