Uni-charm Co., Ltd.

Unicharm Corporation

Kyoko Ito

Kyota Saito

Toru Sasaki

Shunsuke Takino

Nariaki Shimoe

Akihide Ninomiya

Akihisa Shiomi

Masaya Ohiro

A pull-on disposable diaper includes in a waist covering region thereof a tape tab extending in a waist-circumferential direction. The tape tab includes a fixed tape section secured to an outer sheet of the diaper and a movable tape section contiguous to the fixed tape section. The movable tape section has a distal end portion and a proximal end portion. The distal end portion is formed with a finger grip zone and an attaching element located short of this finger grip zone. The proximal end portion is contiguous to one end portion of the fixed tape section. The attaching element is releasably attached to a zone of the fixed tape section in which the fixed tape section is curved to bulge in a direction spaced apart outwardly from an outer surface of the waist covering region.

Pull-on disposable diaper

A disposable wearing article has a first surface and a second surface. The second surface is provided with a tape fastener attached thereto. The tape fastener may be folded so as to be unfoldable in a longitudinal direction and includes a first tape strip and a second tape strip underlying the first tape strip. The first tape strip has a free end zone and a first end zone and is adhesively attached to the second tape strip. The second tape strip has a fixed end zone secured to the second surface and a second end zone. The first end zone of the first tape strip has an extension that extends beyond the second end zone of the second tape strip and is adhesively attached to the second surface either directly or via a third tape strip of the tape fastener.

Disposable wearing article provided with tape fasteners

A disposable pull-on diaper includes front and rear waist regions and a pair of tape fasteners secured to an outer surface of the front waist region or the rear waist region. A tape member forming each of the tape fasteners has a distal end portion and a proximal end portion wherein the distal end portion is releasably attached to joining zones along which the front and rear waist regions are joined together.

Disposable pull-on diaper and process for making the same

A body fluid absorbing component of a pull-on disposable diaper is folded inward in a crotch covering region. Outside opposite side edges of the absorbing component, there are provided a pair of barrier walls extending in a longitudinal direction of the absorbing component. The barrier wall is provided along its zone opposed to an outer surface of the absorbing component, a distal edge of the barrier wall and an intermediate zone defined between the zone and the distal edge with first, second and third elastic members, respectively, each extending in a stretched state in the longitudinal direction of the absorbing component.

In a process for making disposable diapers, a first web is continuously fed in its longitudinal direction. Tape fastener members extending in the longitudinal direction are fed to the first web so as to straddle respective lines corresponding to the side edges of the respective backsheets. Each of the tape fastener members has its longitudinally opposite end portions folded in a Z-shape or an inverted Z-shape. Top sections of these Z-shape and inverted Z-shape are coated on their undersides with a first self adhesive and bottom sections of these Z-shape and inverted Z-shape are coated on their undersides with a second self-adhesive. The tape fastener member is bonded to the first web by means of the second self-adhesive. The first web and the tape fastener members are simultaneously cut along the lines.

Growing community of inventors

Kagawa-ken, Japan

Kyoko Ito