US20020019619A1 - Disposable absorbent article - Google Patents
Disposable absorbent article Download PDFInfo
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- US20020019619A1 US20020019619A1 US09/903,479 US90347901A US2002019619A1 US 20020019619 A1 US20020019619 A1 US 20020019619A1 US 90347901 A US90347901 A US 90347901A US 2002019619 A1 US2002019619 A1 US 2002019619A1
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- Prior art keywords
- side flaps
- pair
- pleats
- article according
- edge
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
- A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
- A61F13/494—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means
- A61F13/49406—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means the edge leakage prevention means being at the crotch region
- A61F13/49413—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means the edge leakage prevention means being at the crotch region the edge leakage prevention means being an upstanding barrier
- A61F13/4942—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means the edge leakage prevention means being at the crotch region the edge leakage prevention means being an upstanding barrier the barrier not being integral with the top- or back-sheet
Definitions
- This invention relates to disposable absorbent articles and more particularly to such articles as disposable diapers, sanitary napkins or the like that are used for absorption and containment of body exudates.
- Absorbent articles of such type are well known and generally comprises a liquid-permeable topsheet, a liquid-impermeable backsheet, a liquid-absorbent core disposed between these two sheets and a pair of elastically stretchable/contractile side flaps being contiguous to and extending along transversely opposite side edges of the core.
- Disposable diapers are also well known which include paired side flaps that comprise a first pair of elastically stretchable/contractile side flaps that extend outward from transversely opposite side edges of a liquid-absorbent cores and a second pair of elastically stretchable/contractile side flaps that are contiguous to and extend along transversely opposite side edges of the core.
- Japanese Patent Application Disclosure (Kokai) No. Hei8-215239 discloses a disposable diaper having first and second pairs of side flaps, each of the second side flaps being folded in a zigzag manner to form a plurality of pleats between its proximal edge and its distal edge. These pleats contain elastically stretchable/contractile members extending along their apices, respectively.
- the second pair of side flaps have pleats that are adapted to come elastically into line-contact with the wearer's skin along the apices of the respective pleats.
- a region defined between the apex of the outermost pleat and the distal edge of the second side flap often comes elastically into surface-contact with the wearer's skin.
- Such surface-contact is certainly effective to prevent leakage of body exudates but may cause skin eruption over a large area.
- the pleats are relatively large and the sheet material for the second side flaps must be relatively large. Consequently, the manufacturing cost of diaper is correspondingly increased.
- the invention provides a disposable absorbent article such as a disposable diaper having paired side flaps adapted to come into line-contact with the wearer's skin along a plurality of lines preferably under an elastic effect. This configuration is able to more effectively protect the wearer's skin from eruption than side flaps that cause surface-contact.
- a disposable absorbent article having a symmetric shape with respect to a longitudinal center line thereof and comprises a liquid-permeable topsheet, a liquid-impermeable backsheet, a liquid-absorbent core disposed therebetween.
- the absorbent article further comprises elastically stretchable/contractile side flaps that are continuous to and extend along transversely opposite side edges of the core.
- the side flaps respectively have first proximal edges, first distal edges, upper surfaces intended to come in contact with the wearer's skin and lower surfaces indicated not to come in contact with the wearer's skin.
- the side flaps are formed on their upper surfaces with a plurality of pleats extending longitudinally of the side flaps.
- the pleats are spaced one from another between the first proximal edges and the first distal edges.
- the pleats respectively have second proximal edges on the upper surfaces which serve as their bases and second distal edges that are normally biased to rise up toward the wearer's skin.
- disposable absorbent article having a symmetric shape with respect to a longitudinal center line thereof and comprising a liquid-permeable topsheet, a liquid-impermeable backsheet, a liquid-absorbent core disposed therebetween.
- This absorbent article further comprises a pair of elastically stretchable/contractile side flaps that extend outward from transversely opposite side edges of the core.
- Each of the side flaps has a first proximal edge, a first distal edge, an upper surface intended to come in contact with the wearer's skin, and a lower surface intended not to come in contact with the wearer's skin.
- Each of the side flaps is formed on their upper surfaces with plural pleats that extend longitudinally of the side flaps.
- the pleats are spaced one from another between the first proximal edge and the first distal edge.
- Each of the pleats has a second proximal edge on the upper surface of the side flap which serve as a base thereof and a second distal edge that is normally biased to rise up toward the wearer's skin.
- FIG. 1 is a plan view depicting a partly cutaway disposable absorbent article according to the invention implemented in the form of disposable diaper;
- FIG. 2 is a perspective view schematically depicting the diaper in a transverse sectional view.
- a article comprises a liquid-permeable topsheet 1 , a liquid-impermeable backsheet 2 , a semi-rigid hourglass-shaped liquid-absorbent core 3 disposed between these two sheets 1 , 2 , a first pair of side flaps 4 each having a high flexibility, and a second pair of side flaps 5 each having a high flexibility and extending between a first proximal edge 5 a and a second distal edge 5 b .
- the article is symmetric with respect to a longitudinal center line 20 and includes front and rear waist regions 6 , 7 and a crotch region 8 .
- Each of the first side flaps 4 comprises respective portions 1 a , 2 a of the topsheet 1 and the backsheet 2 that extends outward beyond the associated side edge of the core 3 and a proximal edge 5 a of the associated second side flap 5 that is bonded to the outermost edge of the portion 2 a .
- Portions of the topsheet 1 and the backsheet 2 extending outward beyond peripheral edges of the core 3 are bonded together by means of hot melt adhesive or heat-sealing means (not shown) and define along their transversely opposite side edges a pair of inwardly curved edges 9 intended to surround of the wearer's legs.
- Portions of the topsheet 1 and the backsheet 2 extending outward beyond longitudinally opposite ends of the core 3 contain therebetween elastically stretchable/contractile members 10 which extend transversely of the waist regions 7 .
- Portions of the topsheet 1 and the backsheet 2 extending outward beyond transversely opposite side edges of the core 3 contain therebetween elastically stretchable/contractile members 11 which extend along the inwardly curved edges 9 .
- These elastically stretchable/contractile members 10 , 11 are secured under appropriate tensions to the foresaid portions by means of hot melt adhesive (not shown).
- Each of the second side flaps 5 has an upper surface 5 c intended to face the wearer's skin and a lower surface 5 d intended not to come into contact with the wearer's skin.
- a plurality of pleats 12 are formed which extend longitudinally of the second side flap 5 and are spaced one from another.
- Each of these pleats 12 has a second proximal edge 12 a having the upper surface 5 c as its base with the other pleats 12 and a second distal edge 12 b normally biased to rise up toward the wearer's skin.
- the second distal edges 12 b of the respective pleats 12 contain elastically stretchable/contractile members 13 extending therein longitudinally of these second distal edges 12 b and are secured thereto under appropriate tension by means of hot melt adhesive (not shown). While the respective members 13 may have substantially the same stretch stress, it is also possible to configure members 13 so that their stretch stress gradually increases or decreases from the first distal edge 5 b to the first proximal edge 5 a of the second side flap 5 or so that the stretch stress in the vicinity of the first distal edge 5 b is higher or lower than the stretch stress in the vicinity of the first proximal edge 5 a .
- the respective pleats 12 have substantially the same height as measured from their second proximal edges 12 a to their second distal edges 12 b and a distance between each pair of adjacent second proximal edges 12 a is preferably dimensioned to be larger than the height in order to ensure that the respective distal edges 12 b should not overlap one another when the respective pleats 12 are collapsed.
- the height is preferably 2 ⁇ 15 mm. While the proximal edges 12 a of the respective pleats 12 are illustrated as being in closed state, they may also be in opened state.
- the respective second side flaps 5 are oriented from the first proximal edges 5 a toward the longitudinal center line 20 with their first distal edges 5 b lying more close to the longitudinal center line 20 than the first proximal edges 5 a .
- Each of the second side flaps 5 is bonded at longitudinally opposite ends 5 e thereof to an upper surface of the topsheet 1 by means of hot melt adhesive or heat-sealing (not shown) with the first distal edge 5 b lying on the upper surface of the topsheet 1 in its region overlying the core 3 .
- first channels 14 adapted to receive body exudates are defined between lower surfaces 5 d of the respective second side flaps 5 and the topsheet 1 .
- the respective second side flaps 5 inversely with respect to the aforesaid orientation, i.e., outwardly of the diaper.
- the lower surfaces 5 d of the respective second side flaps 5 will face the wearer's skin and the respective pleats 12 will be formed on this surface 5 d .
- the respective pleats 12 will be oriented toward the longitudinal center line 20 so that the second distal edges 12 b are more adjacent to the longitudinal center line 20 than the second proximal edges 12 a .
- second channels 15 adapted to receive body exudates are defined between the upper surfaces 5 c and each of pleats 12 although these second channels 15 are smaller than the first channels 14 .
- first pair of side flaps 4 Even if a flow of body exudates reach the first pair of side flaps 4 (though there is substantially no possibility), body exudates will be eventually prevented by these first side flaps 4 from leaking outward. As is apparent, it is preferable, but not essenttial, to provide the first pair of side flaps 4 .
- Components of the diaper may be made of materials conventionally employed for components of the disposable absorbent articles such as diapers and sanitary napkins.
- a hydrophobic or hydrophilic fibrous nonwoven fabric may be employed as material of the topsheet 1 and a moisture-permeable plastic film or such plastic film having its outer surface laminated with a hydrophobic fibrous nonwoven fabric may be employed as material of the backsheet 2 .
- a mixture of fluff pulp and polymer particles of high water absorptivity appropriately compressed may be employed as material for the core 3 .
- the second pair of side flaps 5 may be made of a hydrophobic fibrous nonwoven fabric.
- the second pair of side flaps 5 are preferably water repellent finished by well known process that give them a desired waterproof characteristic.
- the first pair of side flaps 4 are liquid-impermeable and the second pair of side flaps 5 are liquid-resistant.
- liquid-resistant used herein should be understood to mean that these side flaps 5 are liquid-permeable under a predetermined or higher pressure but substantially impervious or hardly pervious to body exudates such as urine so long as the diaper is normally worn.
- the first pair of side flaps 4 may be formed from sheet material other than the topsheet 1 and the backsheet 2 and are bonded to the transversely opposite side edges of the core 3 so far as such sheet material is liquid-impermeable.
- the disposable absorbent article according to the invention includes the side flaps formed with a plurality of pleats adapted to come into line-contact with the wearer's skin along the lines defined by the plurality of pleats preferably under an elastic effect. Therefore, the side flaps according to the invention can prevent leakage of body exudates as effectively as or more effectively than the diaper having the side flaps of surface contact type and can avoid eruption from possibly appearing on the wearer's skin more effectively than the side flaps of surface contact type.
- the side flaps according to the invention have the plural pleats of which the height may be relatively small and can be formed from correspondingly narrow sheet material. Consequently, an increase in manufacturing cost of the article due to formation of the pleats can be alleviated.
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Epidemiology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Abstract
An absorbent article is provided with a pair of side flaps along transversely opposite side edges of the article. Each of these side flaps is formed on its upper surface with a plurality of pleats extending longitudinally of the side flap. Each of the pleats contains an elastically stretchable/contractile member extending along its distal edge so as to operate longitudinally of the pleat.
Description
- This is a Divisional of U.S. Continued Prosecution patent application Ser. No. 09/160,599, filed on Sep. 25, 1998.
- This invention relates to disposable absorbent articles and more particularly to such articles as disposable diapers, sanitary napkins or the like that are used for absorption and containment of body exudates.
- Absorbent articles of such type are well known and generally comprises a liquid-permeable topsheet, a liquid-impermeable backsheet, a liquid-absorbent core disposed between these two sheets and a pair of elastically stretchable/contractile side flaps being contiguous to and extending along transversely opposite side edges of the core. Disposable diapers are also well known which include paired side flaps that comprise a first pair of elastically stretchable/contractile side flaps that extend outward from transversely opposite side edges of a liquid-absorbent cores and a second pair of elastically stretchable/contractile side flaps that are contiguous to and extend along transversely opposite side edges of the core.
- Japanese Patent Application Disclosure (Kokai) No. Hei8-215239 discloses a disposable diaper having first and second pairs of side flaps, each of the second side flaps being folded in a zigzag manner to form a plurality of pleats between its proximal edge and its distal edge. These pleats contain elastically stretchable/contractile members extending along their apices, respectively.
- In the case of the well known disposable diaper disclosed in Japanese Patent Application Disclosure (Kokai) No. Hei8-215239, the second pair of side flaps have pleats that are adapted to come elastically into line-contact with the wearer's skin along the apices of the respective pleats. However, a region defined between the apex of the outermost pleat and the distal edge of the second side flap often comes elastically into surface-contact with the wearer's skin. Such surface-contact is certainly effective to prevent leakage of body exudates but may cause skin eruption over a large area. In addition, the pleats are relatively large and the sheet material for the second side flaps must be relatively large. Consequently, the manufacturing cost of diaper is correspondingly increased.
- In view of the above problems, the invention provides a disposable absorbent article such as a disposable diaper having paired side flaps adapted to come into line-contact with the wearer's skin along a plurality of lines preferably under an elastic effect. This configuration is able to more effectively protect the wearer's skin from eruption than side flaps that cause surface-contact.
- According to one aspect of the invention, there is provided a disposable absorbent article having a symmetric shape with respect to a longitudinal center line thereof and comprises a liquid-permeable topsheet, a liquid-impermeable backsheet, a liquid-absorbent core disposed therebetween. The absorbent article further comprises elastically stretchable/contractile side flaps that are continuous to and extend along transversely opposite side edges of the core. The side flaps respectively have first proximal edges, first distal edges, upper surfaces intended to come in contact with the wearer's skin and lower surfaces indicated not to come in contact with the wearer's skin. The side flaps are formed on their upper surfaces with a plurality of pleats extending longitudinally of the side flaps. The pleats are spaced one from another between the first proximal edges and the first distal edges. The pleats respectively have second proximal edges on the upper surfaces which serve as their bases and second distal edges that are normally biased to rise up toward the wearer's skin.
- According to another aspect of the invention, there is provided disposable absorbent article having a symmetric shape with respect to a longitudinal center line thereof and comprising a liquid-permeable topsheet, a liquid-impermeable backsheet, a liquid-absorbent core disposed therebetween. This absorbent article further comprises a pair of elastically stretchable/contractile side flaps that extend outward from transversely opposite side edges of the core. Each of the side flaps has a first proximal edge, a first distal edge, an upper surface intended to come in contact with the wearer's skin, and a lower surface intended not to come in contact with the wearer's skin. Each of the side flaps is formed on their upper surfaces with plural pleats that extend longitudinally of the side flaps. The pleats are spaced one from another between the first proximal edge and the first distal edge. Each of the pleats has a second proximal edge on the upper surface of the side flap which serve as a base thereof and a second distal edge that is normally biased to rise up toward the wearer's skin.
- FIG. 1 is a plan view depicting a partly cutaway disposable absorbent article according to the invention implemented in the form of disposable diaper; and
- FIG. 2 is a perspective view schematically depicting the diaper in a transverse sectional view.
- Details of a disposable absorbent article according to the invention will be more fully understood from the description of a disposable diaper provided as a specific embodiment of the invention given hereunder with reference to the accompanying drawings.
- Referring to FIGS. 1 and 2, a article comprises a liquid-permeable topsheet1, a liquid-
impermeable backsheet 2, a semi-rigid hourglass-shaped liquid-absorbent core 3 disposed between these twosheets 1, 2, a first pair ofside flaps 4 each having a high flexibility, and a second pair ofside flaps 5 each having a high flexibility and extending between a firstproximal edge 5 a and a seconddistal edge 5 b. The article is symmetric with respect to alongitudinal center line 20 and includes front andrear waist regions 6, 7 and acrotch region 8. Each of thefirst side flaps 4 comprisesrespective portions backsheet 2 that extends outward beyond the associated side edge of thecore 3 and aproximal edge 5 a of the associatedsecond side flap 5 that is bonded to the outermost edge of theportion 2 a. Portions of the topsheet 1 and thebacksheet 2 extending outward beyond peripheral edges of thecore 3 are bonded together by means of hot melt adhesive or heat-sealing means (not shown) and define along their transversely opposite side edges a pair of inwardly curved edges 9 intended to surround of the wearer's legs. Portions of the topsheet 1 and thebacksheet 2 extending outward beyond longitudinally opposite ends of thecore 3 contain therebetween elastically stretchable/contractile members 10 which extend transversely of thewaist regions 7. Portions of the topsheet 1 and thebacksheet 2 extending outward beyond transversely opposite side edges of thecore 3 contain therebetween elastically stretchable/contractile members 11 which extend along the inwardly curved edges 9. These elastically stretchable/contractile members - Each of the
second side flaps 5 has anupper surface 5 c intended to face the wearer's skin and alower surface 5 d intended not to come into contact with the wearer's skin. On theupper surface 5 c of thesecond flap 5, a plurality ofpleats 12 are formed which extend longitudinally of thesecond side flap 5 and are spaced one from another. Each of thesepleats 12 has a secondproximal edge 12 a having theupper surface 5 c as its base with theother pleats 12 and a seconddistal edge 12 b normally biased to rise up toward the wearer's skin. The seconddistal edges 12 b of therespective pleats 12 contain elastically stretchable/contractile members 13 extending therein longitudinally of these seconddistal edges 12 b and are secured thereto under appropriate tension by means of hot melt adhesive (not shown). While therespective members 13 may have substantially the same stretch stress, it is also possible to configuremembers 13 so that their stretch stress gradually increases or decreases from the firstdistal edge 5 b to the firstproximal edge 5 a of thesecond side flap 5 or so that the stretch stress in the vicinity of the firstdistal edge 5 b is higher or lower than the stretch stress in the vicinity of the firstproximal edge 5 a. Therespective pleats 12 have substantially the same height as measured from their secondproximal edges 12 a to their seconddistal edges 12 b and a distance between each pair of adjacent secondproximal edges 12 a is preferably dimensioned to be larger than the height in order to ensure that the respectivedistal edges 12 b should not overlap one another when therespective pleats 12 are collapsed. The height is preferably 2˜15 mm. While theproximal edges 12 a of therespective pleats 12 are illustrated as being in closed state, they may also be in opened state. The respectivesecond side flaps 5 are oriented from the firstproximal edges 5 a toward thelongitudinal center line 20 with their firstdistal edges 5 b lying more close to thelongitudinal center line 20 than the firstproximal edges 5 a. Each of thesecond side flaps 5 is bonded at longitudinallyopposite ends 5 e thereof to an upper surface of the topsheet 1 by means of hot melt adhesive or heat-sealing (not shown) with the firstdistal edge 5 b lying on the upper surface of the topsheet 1 in its region overlying thecore 3. With such arrangement,first channels 14 adapted to receive body exudates are defined betweenlower surfaces 5 d of the respectivesecond side flaps 5 and the topsheet 1. It is also possible to orient the respectivesecond side flaps 5 inversely with respect to the aforesaid orientation, i.e., outwardly of the diaper. In this case, thelower surfaces 5 d of the respectivesecond side flaps 5 will face the wearer's skin and therespective pleats 12 will be formed on thissurface 5 d. Therespective pleats 12 will be oriented toward thelongitudinal center line 20 so that the seconddistal edges 12 b are more adjacent to thelongitudinal center line 20 than the secondproximal edges 12 a. With such arrangement,second channels 15 adapted to receive body exudates are defined between theupper surfaces 5 c and each ofpleats 12 although thesesecond channels 15 are smaller than thefirst channels 14. - Even if body exudates discharged on the upper surface of the topsheet1 between the second pair of
side flaps 5 flows laterally, such body exudates are first prevented by the second pair ofside flaps 5 from further flowing sideways. Should body exudates overcome such blocking effect and flow onto the upper surfaces of the second pair ofside flaps 5, such body exudates will be blocked by theplural pleats 12 in a multi-stage mode. Accordingly, there is practically no apprehension that body exudates might overflow the second pair ofside flaps 5 to the first pair ofside flaps 4. Even if a flow of body exudates reach the first pair of side flaps 4 (though there is substantially no possibility), body exudates will be eventually prevented by thesefirst side flaps 4 from leaking outward. As is apparent, it is preferable, but not essenttial, to provide the first pair ofside flaps 4. - While the figures depict an open type diaper in the transversely
opposite side edges 16 of the front and rear waist regions are not bonded together, the invention is applicable also to the diaper of shorts or pull-on type in which the side edges are bonded together. - Components of the diaper may be made of materials conventionally employed for components of the disposable absorbent articles such as diapers and sanitary napkins. For example, a hydrophobic or hydrophilic fibrous nonwoven fabric may be employed as material of the topsheet1 and a moisture-permeable plastic film or such plastic film having its outer surface laminated with a hydrophobic fibrous nonwoven fabric may be employed as material of the
backsheet 2. A mixture of fluff pulp and polymer particles of high water absorptivity appropriately compressed may be employed as material for thecore 3. The second pair ofside flaps 5 may be made of a hydrophobic fibrous nonwoven fabric. The second pair ofside flaps 5 are preferably water repellent finished by well known process that give them a desired waterproof characteristic. As will be understood from the foregoing description, the first pair ofside flaps 4 are liquid-impermeable and the second pair ofside flaps 5 are liquid-resistant. The term “liquid-resistant” used herein should be understood to mean that theseside flaps 5 are liquid-permeable under a predetermined or higher pressure but substantially impervious or hardly pervious to body exudates such as urine so long as the diaper is normally worn. The first pair ofside flaps 4 may be formed from sheet material other than the topsheet 1 and thebacksheet 2 and are bonded to the transversely opposite side edges of thecore 3 so far as such sheet material is liquid-impermeable. - The disposable absorbent article according to the invention includes the side flaps formed with a plurality of pleats adapted to come into line-contact with the wearer's skin along the lines defined by the plurality of pleats preferably under an elastic effect. Therefore, the side flaps according to the invention can prevent leakage of body exudates as effectively as or more effectively than the diaper having the side flaps of surface contact type and can avoid eruption from possibly appearing on the wearer's skin more effectively than the side flaps of surface contact type.
- The side flaps according to the invention have the plural pleats of which the height may be relatively small and can be formed from correspondingly narrow sheet material. Consequently, an increase in manufacturing cost of the article due to formation of the pleats can be alleviated.
Claims (16)
1. A disposable absorbent article having a symmetric shape with respect to a longitudinal center line thereof and comprising a liquid-permeable topsheet, a liquid-impermeable backsheet, a liquid-absorbent core disposed therebetween and elastically stretchable/contractile side flaps being contiguous to and extending along transversely opposite side edges of said core, wherein:
each of said side flaps has a first proximal edge, a first distal edge, an upper surface intended to come in contact with the wearer's skin and a lower surface intended not to come in contact with the wearer's skin, each of said side flaps being formed on said upper surfaces with plural pleats extending longitudinally of said side flaps and spaced one from another between said first proximal edge and said first free edge; and
each of said pleats has a second proximal edge sharing said upper surfaces as a base thereof and a second thereof distal edge normally biased to rise up toward the wearer's skin.
2. The article according to claim 1 , wherein each of said pleats has an elastically stretchable/contractile member operating along said second distal edge.
3. The article according to claim 1 , wherein each of said pleats is substantially similar one to another so far as a height from said second proximal edge to said second distal edge is concerned and a distance between each pair of adjacent second proximal edges is larger than said height.
4. The article according to claim 1 , wherein each of said side flaps is arranged so that said first distal edge lies more close to said longitudinal center line than said first proximal edge.
5. The article according to claim 1 , wherein a first channel is defined between said lower surface of each of said side flaps and said topsheet.
6. The article according to claim 1 , wherein second channels smaller than said first channels are defined between said upper surface of each of said side flaps and said respective pleats.
7. The article according to claim 1 , wherein said side flaps are moisture-permeable and liquid-resistant.
8. A disposable absorbent article having a symmetric shape with respect to a longitudinal center line thereof and comprising a liquid-permeable topsheet, a liquid-impermeable backsheet, a liquid-absorbent core disposed therebetween, a first pair of elastically stretchable/contractile side flaps extending outward from transversely opposite side edges of said core and a second pair of elastically stretchable/contractile side flaps being contiguous to and extending along transversely opposite side edges of said core, wherein:
each of said second pair of side flaps has a first proximal edge, a first free edge, an upper surface intended to come in contact with the wearers skin and a lower surface intended not to come in contact with the wearer's skin, each of said second pair of side flaps being formed on said upper surface with plural pleats extending longitudinally of said side flap and spaced one from another between said first proximal edge and said first distal edge; and
each of said pleats has a second proximal edge sharing said upper surface as a base thereof and a second distal edge normally biased to rise up toward the wearer's skin.
9. The article according to claim 8 , wherein each of said pleats has a elastically stretchable/contractile member operating along said second free edges.
10. The article according to claim 8 , wherein each of said pleats is substantially similar one to another so far as a height from said second proximal edge to said second free edge is concerned and a distance between each pair of adjacent second proximal edges is larger than said height.
11. The article according to claim 8 , wherein each of said side flaps is arranged so that said first free edge lies more close to said longitudinal center line than said first proximal edges.
12. The article according to claim 8 , wherein a first channel is defined between said lower surface of each of said second pair of side flaps and said topsheet.
13. The article according to claim 8 , wherein second channels smaller than said first channels are defined between said upper surface of each of said second pair of side flaps and said pleats, respectively.
14. The article according to claim 8 , wherein said first pair of side flaps are liquid-impermeable.
15. The article according to claim 8 , wherein said second pair of side flaps are moisture-permeable and liquid-resistant.
16. The article according to claim 8 , wherein each of said first pair of side flaps comprises at least a part of said backsheet and a part of each of said second pair of side flaps bonded to an upper surface of said part.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/903,479 US6451001B2 (en) | 1997-09-30 | 2001-07-11 | Disposable absorbent article |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9-267415 | 1997-09-30 | ||
JP26741597A JP3385190B2 (en) | 1997-09-30 | 1997-09-30 | Disposable absorbent articles |
US09/160,599 US6293934B1 (en) | 1997-09-30 | 1998-09-25 | Disposable absorbent article |
US09/903,479 US6451001B2 (en) | 1997-09-30 | 2001-07-11 | Disposable absorbent article |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/160,599 Division US6293934B1 (en) | 1997-09-30 | 1998-09-25 | Disposable absorbent article |
Publications (2)
Publication Number | Publication Date |
---|---|
US20020019619A1 true US20020019619A1 (en) | 2002-02-14 |
US6451001B2 US6451001B2 (en) | 2002-09-17 |
Family
ID=17444542
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/160,599 Expired - Lifetime US6293934B1 (en) | 1997-09-30 | 1998-09-25 | Disposable absorbent article |
US09/903,479 Expired - Fee Related US6451001B2 (en) | 1997-09-30 | 2001-07-11 | Disposable absorbent article |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/160,599 Expired - Lifetime US6293934B1 (en) | 1997-09-30 | 1998-09-25 | Disposable absorbent article |
Country Status (13)
Country | Link |
---|---|
US (2) | US6293934B1 (en) |
EP (1) | EP0904759B1 (en) |
JP (1) | JP3385190B2 (en) |
KR (1) | KR100572838B1 (en) |
CN (1) | CN1193721C (en) |
AU (1) | AU750726B2 (en) |
BR (1) | BR9804127A (en) |
CA (1) | CA2247587C (en) |
DE (1) | DE69821564T2 (en) |
ID (1) | ID20969A (en) |
MY (1) | MY118559A (en) |
SG (1) | SG77198A1 (en) |
TW (1) | TW535572U (en) |
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JP2789473B2 (en) * | 1988-12-02 | 1998-08-20 | 王子製紙株式会社 | Absorbent articles |
JPH0271521A (en) * | 1989-04-28 | 1990-03-12 | Hitachi Ltd | Manufacture of semiconductor integrated circuit device |
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FR2729561B1 (en) * | 1995-01-23 | 1997-07-04 | Peaudouce | DISPOSABLE ABSORBENT HYGIENE ARTICLE WITH EXTENDABLE LONGITUDINAL POCKET BARRIERS |
JP2957433B2 (en) | 1995-02-08 | 1999-10-04 | ユニ・チャーム株式会社 | Disposable body fluid treatment supplies |
JP3385190B2 (en) * | 1997-09-30 | 2003-03-10 | ユニ・チャーム株式会社 | Disposable absorbent articles |
-
1997
- 1997-09-30 JP JP26741597A patent/JP3385190B2/en not_active Expired - Lifetime
-
1998
- 1998-09-16 CA CA002247587A patent/CA2247587C/en not_active Expired - Fee Related
- 1998-09-17 AU AU85213/98A patent/AU750726B2/en not_active Ceased
- 1998-09-18 ID IDP981256A patent/ID20969A/en unknown
- 1998-09-18 SG SG1998003744A patent/SG77198A1/en unknown
- 1998-09-23 MY MYPI98004358A patent/MY118559A/en unknown
- 1998-09-25 TW TW091212685U patent/TW535572U/en not_active IP Right Cessation
- 1998-09-25 US US09/160,599 patent/US6293934B1/en not_active Expired - Lifetime
- 1998-09-28 EP EP98307864A patent/EP0904759B1/en not_active Expired - Lifetime
- 1998-09-28 DE DE69821564T patent/DE69821564T2/en not_active Expired - Lifetime
- 1998-09-28 BR BR9804127-4A patent/BR9804127A/en not_active IP Right Cessation
- 1998-09-29 KR KR1019980040485A patent/KR100572838B1/en not_active IP Right Cessation
- 1998-09-30 CN CNB981243274A patent/CN1193721C/en not_active Expired - Fee Related
-
2001
- 2001-07-11 US US09/903,479 patent/US6451001B2/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070073259A1 (en) * | 2005-09-29 | 2007-03-29 | Erdman Edward P | Absorbent article with dual gather leg cuff assemblies |
CN103654989A (en) * | 2013-11-14 | 2014-03-26 | 青岛安信医疗器械有限公司 | Preparation method of disposable oral disinfection rod |
Also Published As
Publication number | Publication date |
---|---|
JPH11104173A (en) | 1999-04-20 |
EP0904759B1 (en) | 2004-02-11 |
EP0904759A2 (en) | 1999-03-31 |
EP0904759A3 (en) | 1999-12-08 |
US6451001B2 (en) | 2002-09-17 |
KR100572838B1 (en) | 2006-07-25 |
CA2247587A1 (en) | 1999-03-30 |
CN1214234A (en) | 1999-04-21 |
ID20969A (en) | 1999-04-01 |
TW535572U (en) | 2003-06-01 |
SG77198A1 (en) | 2000-12-19 |
KR19990030240A (en) | 1999-04-26 |
BR9804127A (en) | 1999-12-07 |
AU750726B2 (en) | 2002-07-25 |
CN1193721C (en) | 2005-03-23 |
US6293934B1 (en) | 2001-09-25 |
CA2247587C (en) | 2003-06-10 |
DE69821564D1 (en) | 2004-03-18 |
JP3385190B2 (en) | 2003-03-10 |
DE69821564T2 (en) | 2004-06-03 |
AU8521398A (en) | 1999-04-22 |
MY118559A (en) | 2004-12-31 |
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