Unicharm Corporation

Hidefumi Goda

Hirotomo Mukai

Hiroki Yamamoto

Junji Shinohara

Tatsuya Hashimoto

Tomoko Tsuji

Akiyoshi Kinoshita

Kenji Takeuchi

Masaharu Tomioka

Shinji Noma

A device for manufacturing a composite body of a continuous sheet-like member by attaching and handing over a retained workpiece to a continuous sheet-like member, at a workpiece hand over position including a rotating body that rotates about a rotating shaft, a workpiece retaining portion supported by the rotating body in a state where a retaining surface that retains the workpiece faces outward in a direction of radius of gyration of the rotating body, a workpiece hand over mechanism that is positioned to accord with the workpiece hand over position along a direction of rotation of the rotating body, and that hands over the workpiece from the retaining surface to the continuous sheet-like member when the retaining surface passes the workpiece hand over position, wherein the workpiece hand over mechanism has a roller that comes into contact with the continuous sheet-like member to transport the continuous sheet-like member, and a pushing mechanism that is capable of pushing out an outer circumferential face of the roller inward along the direction of radius of gyration to push the continuous sheet-like member against the workpiece, and the pushing mechanism changes an amount by which the outer circumferential face is pushed out in conjunction with a location, of the retaining surface along the direction of radius of gyration, at the workpiece hand over position.

Manufacturing device for composite bodies of continuous sheet-like members

An absorbent manufacturing device forms an absorbent by depositing a liquid absorbent fiber and a super absorbent polymer in a deposition part. The absorbent manufacturing device includes: a plurality of suction holes that are provided in the deposition part, wherein the liquid absorbent fiber and the super absorbent polymer flowing inside a scattering duct are deposited in the deposition part by suction; a suction duct that is provided in communication with the suction holes and draws air so that the suction holes perform suction; and a separator that separates a super absorbent polymer of size equal to or larger than a certain size from a flow of air flowing in the suction duct and returns the separated super absorbent polymer to the scattering duct.

Manufacturing device and manufacturing method for absorbent

The present invention provides an absorbent article imparting superior comfort during wearing without inhibiting an absorbent property of an absorbent body, and a manufacturing method thereof. In the stretchable non-woven fabrics composed of a stretchable thermoplastic fiber and a heat-adhesive fiber having a lower melting point than that of the thermoplastic fiber which is arranged on a skin non-contacting side of a chassis, a low-stretchability portion is formed, in which the stretchability of the stretchable non-woven fabrics is lowered, at least in a portion thereof which overlaps an absorbent body in a thickness direction. The low-stretchability portion is formed by heating and pressurizing the portion of an elasticized non-woven fabric being extended.

Stretchable non-woven fabric, absorbent article and absorbent article manufacturing method

A disposable undergarment having a topsheet, a backsheet and an absorbent core disposed therebetween. The core is placed in a crotch region and has front and rear end zones and a middle zone. Side portions of a first elastic member extend in the vicinity of front ends of transversely opposite side edge portions of the crotch region while a middle portion of the first elastic member extends across the front end zone. Side portions of a second elastic member extend in the vicinity of rear ends of the edge portions while a middle portion of the second elastic member extends across the rear end zone. The contraction of the first and second elastic members in the middle portions thereof is effectively used to maintain the front and rear end zones of a core in close contact with the wearer's skin.

Disposable undergarment

A disposable undergarment includes first, second and third elastic members. The first elastic members have first both side portions extending in a longitudinal direction and a first middle portion extending across a crotch region. A second elastic member has second both side portions and a middle portion extending across the crotch region. The third elastic members have first connecting portions merged into the first both side portions and second connecting portions extending to be merged into the second both side portions. By such an arrangement, tensile stress of the third elastic member can be adequately utilized to keep the undergarment in tight contact with the wearer's thigh.

Growing community of inventors

Kagawa, Japan

Hidefumi Goda