Kao Corporation

Makoto Kokubo

Takuo Yanashima

Akio Morita

Kenji Ando

Yoshinobu Machida

Shinji Hamamoto

Koji Imai

Shogo Oku

Sera Takeshi

The present invention provides a method for continuously manufacturing a stretchable sheet () with a thread-shaped elastic body () fixed between a pair of belt-shaped sheets () in a stretched state, the method including a supply process of introducing the fed thread-shaped elastic body () to elastic body winding means () in a stretched state, a conveyance process of continuously winding the thread-shaped elastic body () to a thread-conveying longitudinal structure () using the elastic body winding means () and conveying the wound thread-shaped elastic body in a longitudinal direction of the structure (), and an integration process of fixing the thread-shaped elastic body () as sandwiching between the sheets (). In the supply process, the thread-shaped elastic body () is introduced to the elastic body winding means () while adjusting a speed of the thread-shaped elastic body () to be equal to or higher than a winding speed against the pair of conveying belts () with speed adjusting means (B) which is arranged at the upstream side of the elastic body winding means ().

Method for manufacturing stretchable sheet

A transportation path changing device () of the invention is a transportation path changing device that changes a transportation path of a continuous sheet-like object () that is being transported. The device includes: an oscillating section () that oscillates in an intersecting direction Y intersecting with a flow direction X of the transported object, and that increases/decreases the length of the transportation path of the transported object (); a first moving means () that is connected to the oscillating section (), and that moves the oscillating section () in the intersecting direction Y; a second moving means () that moves a portion or the entirety of the first moving means () in the intersecting direction Y; and a control section () that controls the first moving means () and the second moving means ().

Transfer path altering device

In the present invention, one surface of a belt-shaped sheet laminate (), in which a plurality of sheets are laminated, is pressed against a support member () having a light passage section () through which a laser beam () can pass, and the belt-shaped sheet laminate () is irradiated, from the support member () side via the light passage section (), with a laser beam () to cut and fusion-bond the belt-shaped sheet laminate (), thereby sealed edge sections () are formed by fusion-bonding the edge sections of the plurality of sheets.

Method for manufacturing fused sheets

A method for manufacturing an absorbent article comprising the steps of continuously feeding out a long, extensible, continuous member ( ) from a predetermined position, cutting the continuous member ( ) into lengths (P ) each equivalent to a length of one sheet of the absorbent article at a predetermined position, and fixedly arranging the cut continuous member at a predetermined position of the absorbent article, wherein a predetermined pattern is preliminarily printed on the continuous member ( ) at a printing pitch shorter than the cutting length (P ) of the continuous member, and the speed for feeding out is controlled such that the predetermined pattern is located at a predetermined part of the cut continuous member, thereby obtaining the absorbent article in which the predetermined pattern is arranged at a predetermined position.

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Yaita, Japan

Makoto Kokubo