Surgery – Means and methods for collecting body fluids or waste material – Absorbent pad for external or internal application and...
Reexamination Certificate
1998-04-30
2001-04-03
Weiss, John G. (Department: 3761)
Surgery
Means and methods for collecting body fluids or waste material
Absorbent pad for external or internal application and...
C604S385010, C604S385030, C604S385220, C604S385240, C604S385270, C604S385290
Reexamination Certificate
active
06210386
ABSTRACT:
BACKGROUND OF THE INVENTION
This invention relates to a disposable pull-on garment and more particularly to a disposable pull-on garment including a pants type disposable diaper, training pants and incontinence pants, provided with structure functioning to improve fitting of the garment to a wearer's waist and to hold the garment in a rolled up state thereof for disposal.
Japanese Patent Application Toku Hyo (PCT) No. Hei8-507699 discloses a disposable pull-on diaper (Related Art 1) in which both front and rear waist regions are provided on their entire extent with a plurality of circumferentially contractile elastic members and the rear waist region is provided in its middle with a single adhesive strip being extendible vertically of the diaper. This arrangement enables fitting of the diaper to a wearer's waist and the used diaper to be rolled up for disposal using the adhesive strip.
Japanese Laid-Open Utility Model Application No. Hei5-21935 discloses a disposable pull-on diaper (Related Art 2) in which an adhesive sheet is separably fastened to an inner surface of the front or rear waist region of the diaper. This arrangement also enables the diaper to be rolled up for disposal using the adhesive sheet. The adhesive sheet has substantially the same width as the diaper and is adapted to be secured to the diaper which has been rolled from its bottom toward its top over the entire width of the diaper.
In the case of the foregoing Related Art 1, a relatively narrow single strip is used to hold the diaper in its rolled up state for disposal. This may cause leakage on offensive odor from the rolled up diaper because the waist-opening cannot be completely closed when the diaper is rolled up with the waist-opening being exposed.
In the case of the foregoing Related Art 2, the substantially entire waist-opening of the rolled up diaper can be closed by the adhesive sheet. However, any one of the front and rear waist regions remains covered with the adhesive sheet over the substantially entire width during use of the diaper and the adhesive sheet inevitably degrades the desired elasticity of this waist region in its circumferential direction.
According to both the foregoing Related Art 1 and the foregoing Related Art 2, the strip and the sheet used to hold the rolled up diaper are adhesive. If any extraneous matter clings to their adhesive surfaces during use of the diaper, the adhesive nature will seriously deteriorate and the strip as well as the sheet can be no longer be used to hold the rolled up diaper.
The elastic members and the strip employed by the foregoing Related Art 1 as well as the adhesive sheet employed by the foregoing Related Art 2 cannot offer two or more functions, respectively, so the number of members correspondingly increases manufacturing cost.
SUMMARY OF THE INVENTION
In view of the problem as has been described above, it is a principal object of the invention to provide a disposable pull-on garment provided with structure functioning not only to improve a fitting of the garment to a wearer's waist but also to hold the used garment in its rolled up state for disposal, wherein the structure is adapted, when it functions to dispose of the garment, to hold the used garment in its rolled up state without relying upon any adhesive fastener and preferably to cover the waist-opening of the rolled up garment over substantially entire extent of the opening.
The object set forth above is achieved, according to the invention, by a disposable pull-on garment having mutually opposite first and second waist regions and a crotch region therebetween comprising a liquid-permeable topsheet, a liquid-impermeable backsheet and a liquid-absorbent core disposed therebetween, said first and second waist regions being bonded together along transversely opposite side edges thereof, respectively, so as to form a waist-opening and a pair of leg-openings, wherein: an auxiliary flap extending in front of said backsheet in said first waist region and being elastic circumferentially of said garment has circumferentially opposite side edges thereof unitized with said first waist region along transversely opposite side edges of said first waist region.
The invention comprises the following various modes.
(1) The auxiliary flap comprises a nonwoven fabric and a plurality of elastic members circumferentially extending in parallel one to another and secured to said nonwoven fabric under appropriate tension.
(2) The auxiliary flap extends between a peripheral edge of said waist-opening and top edges of said leg-openings as viewed vertically of said garment.
(3) The auxiliary flap is unitized with said first waist region along said peripheral edge of said waist-opening and said transversely opposite side edges of said auxiliary flap, leaving a remaining portion spaced apart from said first waist region, so as to form a pocket opening downwardly of said garment.
(4) The auxiliary flap comprises a portion of at least one of said topsheet and backsheet extending outward beyond the peripheral edge of said waist-opening in said first waist region and folded downward along said peripheral edge.
(5) The auxiliary flap has transversely opposite side edges thereof unitized with said first waist-region so as to leave a remaining portion of said auxiliary flap spaced apart from said first waist region.
(6) The auxiliary flap defining said pocket is unitized with said first waist region along circumferentially opposite portions of a bottom edge of said flap defining said pocket opening therebetween so that said pocket opening has a width smaller than a width of an internal space of said pocket.
(7) The remaining portion of said auxiliary flap spaced from said first waist region has a dimension gradually reduced from the top edge toward the bottom edge of said garment.
(8) The remaining portion of said auxiliary flap spaced from said first waist region is separably fastened to said backsheet at intermittently distributed spots.
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Bogart Michael
Lowe Hauptman & Gilman & Berner LLP
Uni-Charm Corporation
Weiss John G.
LandOfFree
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