Disposable diaper
AssigneeKao Corporation
InventorsKenji Ando, Mitsue Ushiwata
Life of this patent
Estimating the term…
Abstract
In an underpants type disposable diaper comprising a liquid permeable top sheet, a liquid impermeable back sheet, an absorbent member disposed therebetween, an elastic expansible member for forming a gather each to a pair of leg portions and front and rear waist body portions formed around the absorbent member, the front and rear waist body portions being connected and fixed together at both sides to form a waist opening portion and a pair of leg opening portions, respectively, at least a part of each area formed between the waist opening portions and the pair of leg opening portions at both side portions of the waist portion is provided with a vertical split portion, respectively and connection means are provided to each of the side portions.
Claims19
An underpants type disposable diaper comprising an integrated sheet, said integrated sheet including a liquid permeable top sheet, a liquid impermeable back sheet, and an absorbent member having a periphery, said absorbent member being disposed between said top sheet and said back sheet, said integrated sheet having a front waist body portion and a rear waist body portion and first and second side portions, each of said side portions having a concave section, said front waist body portion and said rear waist body portion each having a first waist flap and a second waist flap, each of said first waist flaps and said second waist flaps having a first portion and a second portion, each said first portion of said first waist flaps being fixedly interjoined by a manually tearable pre-connected portion to form a first joint and each said first portion of said second waist flaps being fixedly interjoined by a manually tearable pre-connected portion to form a second joint such that a pair of leg opening portions and a waist opening portion are formed, each of said first and second joints being separable by tearing along a longitudinal axis thereof, respectively, a plurality of elastic expansible members for forming a gather adjacent to the periphery of said absorbent member at each of said leg opening portions, one of each said second portion of said first and second waist flaps containing first and second connection means, respectively, for removably connecting each of said first waist flaps together and each of said second waist flaps together, respectively.
A disposable diaper comprising an integrated sheet, said integrated sheet including a liquid permeable top sheet, a liquid impermeable back sheet, and an absorbent member, said absorbent member being disposed between said top sheet and said back sheet, said integrated sheet having a front waist body portion, a rear waist body portion and first and second side portions, each of said side portions having a concave section, said front waist body portion having a first front waist flap and a second front waist flap, and said rear waist body portion having a first rear waist flap and a second rear waist flap, each of said waist flaps being split apart into a first element and a second element, said second elements of said first front waist flap and of said first rear waist flap being interjoined by a manually tearable pre-connected portion to form a first joint and said second elements of said second front waist flap and of said second rear waist flap being interjoined by a manually tearable pre-connected portion to form a second joint such that a pair of leg opening portions and a waist opening portion are formed, each of said first and second joints being separable by tearing along a longitudinal axis thereof, respectively, and first and second fastener means for removably fastening said first elements of said first front waist flap and said first rear waist flap together, and said first elements of said second front waist flap and said second rear waist flap together, respectively.
A pull-on type disposable diaper comprising:
- an integrated sheet including a liquid permeable top sheet, a liquid impermeable back sheet, and an absorbent member disposed between said top sheet and said back sheet;
- a front waist body portion, a rear waist body portion, and first and second side portions provided on said integrated sheet, each of said side portions having a concave section defining leg openings of said diaper;
- a first longitudinally manually tearable pre-connected portion connecting each of said side portions of said integrated sheet together;
- and
- a second selectively fastenable portion at each of said side portions of said integrated sheet;
- wherein said pull-on type disposable diaper is applied to a wearer in a pull on manner followed by fastening of said second selectively fastenable portion and removed from a wearer by releasing said second selectively fastenable portion and longitudinally tearing said pre-connected portion.
Dependencies are inferred from the claim text.