WO2005011549A1 - 使い捨ておむつ - Google Patents
使い捨ておむつ Download PDFInfo
- Publication number
- WO2005011549A1 WO2005011549A1 PCT/JP2004/010955 JP2004010955W WO2005011549A1 WO 2005011549 A1 WO2005011549 A1 WO 2005011549A1 JP 2004010955 W JP2004010955 W JP 2004010955W WO 2005011549 A1 WO2005011549 A1 WO 2005011549A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- region
- waist
- diaper
- wing
- sides
- Prior art date
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Classifications
-
- 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
- A61F13/49007—Form-fitting, self-adjusting disposable diapers
- A61F13/49009—Form-fitting, self-adjusting disposable diapers with elastic means
- A61F13/49011—Form-fitting, self-adjusting disposable diapers with elastic means the elastic means is located at the waist region
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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
- A61F13/49007—Form-fitting, self-adjusting disposable diapers
- A61F13/49009—Form-fitting, self-adjusting disposable diapers with elastic means
- A61F13/49014—Form-fitting, self-adjusting disposable diapers with elastic means the elastic means is located at the side panels
Definitions
- the present invention relates to a disposable diaper that connects the front and rear waist regions through a fastening means at the time of wearing.
- a wing portion extends laterally outward from both sides of the front and rear waist regions, and a pair of tape fasteners is attached to the wing portion of the rear waist region (Patent Documents). 1).
- a band-shaped first elastic member extending in the lateral direction is shrinkably attached to an end of a front and rear waist region, and a number of thread-shaped second elastic members extending in the lateral direction are provided. It is shrinkably attached between the edge of the core in the rear waist region and the first elastic member.
- the second elastic member extends between both sides of the rear waist region to the wing portion, and the wing portion of the rear waist region has elastic elasticity in the lateral direction.
- the tape fastener has a fixed portion fixed to the wing portion in the rear waist region, and a free portion extending laterally outward from the fixed portion. The hook of the mechanical fastener is attached to the free part of the tape fastener.
- the first elastic member has a strip shape and the second elastic member has a thread shape. Therefore, the elongation stress of the first and second elastic members is not always the same. The lateral elongation stress at the end of the waist region is different from that of the wing portion in the waist region after the second elastic member extends.
- An object of the present invention is to provide a disposable diaper that can prevent slipping during wearing and does not give a partial feeling of pressure around the wearer's torso.
- the premise of the present invention for solving the above-mentioned problem is that a front waist region and a rear waist region are vertically set. Area, and a crotch area located between the waist areas, and a liquid-permeable surface sheet located on the skin contact side, a liquid-impermeable back sheet located on the skin non-contact side, and the sheets. And a liquid-absorbent core extending from the crotch region toward the front and rear waist region, and extending laterally outside both end edges of the core; A disposable diaper having a side portion extending outside in a vertical direction and located outside both side edges of the core, and connecting the front and rear waist regions through fastening means at the time of mounting.
- the diaper has an elastically expandable and contractable waist stretchable region extending laterally to at least an end of the rear waistline region.
- An elastically extendable wing extending / retracting region extending laterally outward from both sides of the rear waist region, and both sides of the rear waist region are the waist elastic region and the wing stretching region.
- the lateral elongation stress of the wing stretch region is greater than that of the waist stretch region in the lateral direction.
- the elasticity of the waist elastic region in the lateral direction is provided by a first elastic member shrinkably attached to an end of the waist region.
- the elastic region is formed from an elastic sheet separate from the front and back sheets.
- the first length dimension in the lateral direction of the waist elastic region when the waist elastic region is maximally extended in the lateral direction is set to 100%.
- the waist stretching area is stretched until the first length dimension becomes 90%
- the lateral stretching stress of the west stretching area is in the range of 0.5-3.
- the second length in the horizontal direction when the stretchable area is not stretched is set to 100%
- the wing stretchable area is stretched in the horizontal direction when the wing stretchable area is stretched until the second length is 120%.
- the wing extension region is extended until the stress is 1.5-7.ON and the second length dimension is 150%
- the lateral extension stress of the wing extension region is 3.010. It is in the range of ON.
- both sides of the rear waist region are substantially inextensible.
- both sides of the rear waist region are elastically stretched.
- the second elastic member is attached to the both sides of the rear waist region so as to be retractable, and is provided with lateral elasticity of both sides of the rear waist region.
- the elongation stress is smaller than that in the lateral direction on both sides of the rear waist region.
- a third length dimension of both sides of the rear waist region when the both sides are maximized in the lateral direction is set to 100%.
- the lateral elongation stress of the both sides is in the range of 520N.
- the tensile force acting on the wing elastic region is divided and suppressed by both sides of the rear waist region located between the west elastic region and the wing elastic region.
- the tensile force transmitted to the waist elastic region can be reduced.
- This diaper has a force that the waist stretch area, which has a smaller elongation stress than the wing stretch area, extends laterally during the process of stretching the wing stretch area, and the waist stretch area stretches laterally before the wing stretch area extends.
- the diaper can be worn on the wearer with the stretchable wing stretch area sufficiently extended in the lateral direction.
- the diaper can securely tighten the circumference of the wearer's torso by utilizing the contraction force between the wing elastic region and the waist elastic region, and can prevent the diaper from slipping from the wearing position.
- This diaper does not give a partial feeling of pressure around the wearer's torso, while the waist stretch area does not locally tighten around the wearer's torso.
- the waist stretch zone stretches before the wing stretch zone stretches in the horizontal direction.
- the diaper can be worn on the wearer while the stretchable wing stretch area is sufficiently extended in the lateral direction. This diaper reduces the contraction force between the wing elastic area and the waist elastic area. Utilization can be used to securely tighten the circumference of the wearer's torso and prevent the diaper from slipping off the wearing position.
- FIG. 1 is a partially cutaway perspective view of a diaper shown as an example.
- FIG. 2 is a sectional view taken along the line ⁇ _ ⁇ in FIG.
- FIG. 3 is a sectional view taken along line III-III in FIG.
- FIG. 4 is a sectional view taken along line IV—IV in FIG.
- FIG. 5 is a partially cutaway perspective view of a diaper shown as another example.
- FIG. 6 VI-VI line end view of FIG.
- FIG. 7 is a sectional view taken along line VII-VII of FIG.
- FIG. 8 is an end view taken along line VIII-VIII in FIG.
- FIGS. 1 and 2 are a partially cutaway perspective view of the diaper 1A shown as an example and an end view taken along the line II-II of FIG. 1, and FIGS. 3 and 4 are sectional views taken along the line III-III of FIG. 4 is a cross-sectional view taken along the line IV—IV in FIG.
- the horizontal direction is indicated by an arrow L
- the vertical direction is indicated by an arrow M
- the thickness direction is indicated by an arrow N.
- the inner surfaces of the front and back sheets 2, 3 and the leak-proof sheet 12 refer to the surface facing the core 4
- the outer surfaces of the sheets 2, 3, 12 refer to the surface not facing the core 4. .
- the diaper 1A is interposed between the liquid-permeable top sheet 2 located on the skin contact side, the liquid-impermeable back sheet 3 located on the non-skin contact side, and the front and back sheets 2, 3.
- the liquid-absorbent core 4 is a main component.
- the diaper 1A includes a front waist region 5 and a rear waist region 7 in the longitudinal direction, and a crotch region 6 located between the waist regions 5 and 7, and is located outside the both end edges 4a of the core 4.
- the front and rear waist regions 5 and 7 have both end portions 8 extending laterally, and the core 4 has both side portions 9 located outside the side edges 4b and extending vertically between the front and rear waist regions 5 and 7.
- the diaper 1A is formed at the end 8 of the front and rear waist regions 5, 7 and extends elastically in the lateral direction. It has a pair of elastically expandable and contractable wing extending and contracting regions 11 extending outward.
- the diaper 1A has a substantially hourglass-shaped planar shape in which the lateral length dimension of both sides 9 of the front waist region 5 is larger than that of the lateral portions 9 of the crotch region 6.
- a pair of leak-proof sheets 12 extending in the vertical direction are attached to both sides 9.
- the topsheet 2 is formed from a breathable hydrophilic fiber nonwoven fabric 13.
- the back sheet 3 is formed of a gas-permeable liquid-impervious plastic film 14 and a gas-permeable hydrophobic fiber nonwoven fabric 15 overlapping each other.
- the film 14 is located on the skin contact side
- the nonwoven fabric 15 is located on the non-skin contact side.
- the finolem 14 and the nonwoven fabric 15 are intermittently joined to each other with an adhesive (not shown) on their facing surfaces.
- Core 4 starts at inseam 6 It extends toward the front and rear waist regions 5 and 7 and is fixed to at least one of the inner surfaces of the top sheet 2 and the back sheet 3.
- the core 4 is a mixture of particulate or fibrous superabsorbent polymer and fluff pulp, or a mixture of particulate or fibrous superabsorbent polymer, fluff pulp and thermoplastic synthetic resin fiber. , Compressed to a predetermined thickness.
- the core 4 is preferably entirely wrapped in a liquid-permeable sheet such as tissue paper or a nonwoven fabric of hydrophilic fiber in order to prevent the shape of the core 4 and the polymer from falling off.
- a starch-based / cellulose-based or synthetic polymer-based polymer can be used as the polymer.
- Both end portions 8 are formed of an end portion 2a of the top sheet 2 and an end portion 3a of the back sheet 3 extending outward from the edge 4a of the core 4 in the vertical direction.
- the inner surfaces of the front and back sheets 2 and 3 are fixed to each other with the ends 2a and 3a of the sheets 2 and 3 overlapping each other.
- the elasticity of the waist elastic region 10 is imparted by a band-shaped first elastic member 16 (elastic member for waist) attached to the end 8 of the front and rear waist regions 5 and 7 so as to be contractible.
- the first elastic member 16 is interposed between the end 2a of the top sheet 2 and the end 3a of the back sheet 3, and is intermittently connected to the inner surfaces of the sheets 2 and 3 with an adhesive (not shown). Is firmly fixed.
- the first elastic member 16 is fixed to the front and back sheets 2 and 3, the first elastic member 16 is in a state of being expanded at a predetermined magnification in the lateral direction.
- the front and back sheets 2 and 3 are contracted in the horizontal direction by the contraction of the elastic member 16, and a large number of gathers are formed on the sheets 2 and 3 so as to undulate in the thickness direction of the diaper 1A.
- Both side portions 9 are formed from side portions 2b and 3b of the front and back sheets 2 and 3 extending vertically outward from the side edge 4b of the core 4 and fixed side portions 12a to be described later. I have. At both sides 9, the side 2b of the topsheet 2 extends slightly laterally outward from the side edge 4b of the core 4, and the side 2b forces further laterally outwards the side 3b of the backsheet 3 and the leakproof sheet.
- the side 12a of 12 extends and extends.
- the inner and outer surfaces of the sheets 2, 3, and 12 are fixed in such a manner that the sheets 2, 3, and 12 overlap with each other, and the sheets 2, 3, and 12 overlap with each other. .
- the sides 9 are substantially inextensible. Both sides 9 of the rear waistline region 7 are located between the waist elastic region 10 and the wing elastic region 11.
- leg-like elastic members 17 extending in the vertical direction are accommodated. It is attached to be retractable.
- the leg-surrounding elastic member 17 is interposed between the side portion 3b of the back sheet 3 and the fixed side portion 12a of the leak-proof sheet 12, and the inner surfaces of the sheets 3 and 12 are bonded via an adhesive (not shown). Fixed intermittently.
- the leg-surrounding elastic member 17 is fixed to the back sheet 3 and the leak-proof sheet 12, the leg-surrounding elastic member 17 is in a state of being elongated at a predetermined magnification in the vertical direction.
- the back sheet 3 and the leak-proof sheet 12 shrink in the vertical direction due to the contraction of the elastic member 17, and a large number of gathers are formed on the sheets 3 and 12 so as to undulate in the thickness direction of the diaper 1A.
- the wing stretch area 11 is formed of a stretch sheet 18 having elasticity in the horizontal direction, which is separate from the front and back sheets 2, 3 and the leak-proof sheet 12. In the wing stretch region 11, the transverse extension stress is greater than the transverse extension stress in the waist stretch region 10.
- the wing stretching area 11 has a laterally inner end 11a interposed between the side 3b of the back sheet 3 and the fixed side 12a of the leak-proof sheet 12, and the inner end 11a of the sheet 3 It is fixed to the inner surface via an adhesive (not shown).
- a pair of tape fasteners 19 (fastening means) extending in the lateral direction are attached to the lateral outer end l ib of the wing expansion / contraction area 11.
- the elastic sheet 18 is formed of two air-permeable hydrophobic fiber nonwoven fabrics 20 and a gas-impermeable liquid-permeable and elastic plastic film 21 interposed between the nonwoven fabrics 20. A large number of gathers are formed on the nonwoven fabric 20 so as to undulate in the thickness direction of the diaper 1A.
- the nonwoven fabric 20 is overlapped and bonded to both sides of the elastic plastic film 21 which is stretched in the lateral direction.
- the film 21 contracts in the horizontal direction
- the nonwoven fabric 20 contracts in the horizontal direction.
- the nonwoven fabric 20 and the finolem 21 are intermittently joined via a large number of dot-shaped heat-sealed portions 23 in which the opposing surfaces overlap with each other and are almost uniformly distributed.
- the bonding between the nonwoven fabric 20 and the finolem 21 can be performed by means of heat welding such as heat sealing or sonic sealing.
- the non-woven fabric 20 and the film 21 may be intermittently joined via an adhesive that is loose at the heat-sealed portion 23.
- the nonwoven fabric 20 is formed of a polyolefin-based thermoplastic synthetic resin fiber.
- Poly As the olefin-based thermoplastic synthetic resin, any of polyamide-based, polyester-based, polyethylene-based, and polypropylene-based resins can be used.
- the plastic film 21 is formed from a thermoplastic synthetic resin having rubber-like elasticity. Use any of styrene block copolymers, polyurethane block copolymers, polyester block copolymers, polyamide block copolymers, and copolymer blends as the thermoplastic synthetic resin that forms Film 21. can do.
- Styrene block copolymers include
- EB—S styrene-ethylene butadiene-styrene Z polypropylene
- PP / E-P polypropylene Z ethylene-propylene
- the stretchable sheet 18 may be formed of: a piece of a gas-permeable hydrophobic fiber nonwoven fabric 20 and a gas-impermeable liquid-permeable and stretchable plastic film 21.
- the nonwoven fabric 20 is superimposed on one side of the stretchable plastic film 21 which is stretched in the lateral direction, and the nonwoven fabric 20 and the film 21 are joined via the heat-sealed portion 23 or an adhesive.
- the tape fastener 19 includes a fixing portion 19a fixed to an outer end l ib of the wing stretchable region 11 via an adhesive (not shown), and a free portion 19b extending laterally outward from the fixing portion 19a.
- a fiber nonwoven fabric formed from a polyolefin-based thermoplastic synthetic resin fiber or a plastic film formed from a polyolefin-based thermoplastic synthetic resin is used as the tape fastener 19 .
- a large number of hooks 24 extending in the thickness direction of the diaper 1A are attached to the free portion 19b.
- the hooks 24 are formed of a polyolefin-based thermoplastic synthetic resin.
- the free portion 19b may be coated with an adhesive that does not use the hook 24.
- a target tape 25 (fastening means) for detachably fastening the free portion 19b of the tape fastener 19 is attached to the front waistline region 5.
- the target tape 25 has a rectangular shape that is long in the lateral direction, and is fixed to the outer surface of the back sheet 3 intermittently or continuously via an adhesive (not shown).
- a fibrous nonwoven fabric formed from polyolefin-based thermoplastic synthetic resin fibers or a plastic film formed from a polyolefin-based thermoplastic synthetic resin is used.
- the outer surface of the target tape 25 Numerous loops 26 are attached to form an arc in the thickness direction of the diaper 1A.
- the loop 26 is formed from a polyolefin-based thermoplastic synthetic resin.
- the leakproof sheet 12 is formed from a breathable hydrophobic fiber nonwoven fabric 27.
- the leak-proof sheet 12 has fixed side portions 12a which are located on both side portions 9 and extend vertically between the front and rear waist regions 5 and 7, and have a propensity to stand above the top sheet 2 and have front and rear waist regions 5 and 7.
- the diaper 1A has a movable portion 12b extending in the vertical direction between the portions 7, and fixed end portions 12c located at both end portions 8 and lying inward in the horizontal direction of the diaper 1A. Above the movable part 12b, a stretchable elastic member 28 extending in the vertical direction is shrinkably attached.
- the elastic member 28 is intermittently fixed to the movable part 12b via an adhesive (not shown) while being covered by a part of the movable part 12b.
- the fixed end portions 12c are fixed to the outer surface of the end portion 2a of the surface sheet 2.
- the elastic member 28 contracts and the movable part 12b rises above the surface sheet 2, and the movable part 12b Form a barrier to
- the procedure for the parent or caregiver to wear the diaper 1A on the wearer is as follows. After putting the buttocks of the wearer with the back on the deployed diaper 1A, the caregiver or caregiver holds the front waistline area 5 and folds the inseam area 6 of the diaper 1A, and the front waistline Place Zone 5 on the wearer's abdomen. Next, the free portion 19b of the tape fastener 19 is pinched so that the wing elastic region 11 of the rear waist region 7 is located above the abdomen of the wearer. Parents and caregivers can overlap the wing elastic area 11 on the outside of the front waist area 5 at the end 8 and both sides 9 and tighten the waist elastic area 10 and the wing elastic area 11 around the wearer's torso.
- one of the free portions 19b of the tape fastener 19 is fixed to the outer surface of the target tape 25, and the other of the free portion 19b of the tape fastener 19 is fixed to the target tape 25.
- the diaper 1A where the front and rear waist regions 5 and 7 are connected has a waist opening and a pair of leg openings. Is formed (not shown). The excrement excreted during the wearing of the diaper 1A passes through the topsheet 2 and is absorbed and held by the core 4.
- the wing elastic region 11 expands in the lateral direction, and the tensile force acting on the wing elastic region 11 is changed to the waist elastic region 10 and the wing elastic region. It is transmitted to both side parts 9 of the rear waist area 7 located between 11 and.
- the tensile force acting on the wing elastic area 11 is transmitted to both sides 9 of the rear waist area 7, the tensile force is divided and suppressed by the substantially inelastic both sides 9, and the wing elasticity is reduced.
- the tensile force transmitted from the region 11 to the waist elastic region 10 can be reduced.
- the diaper 1A is a force that expands the waist stretch area 10 having a smaller stretching force than the stretch area 11 in the lateral direction before the wing stretch area 11 stretches in the horizontal direction. It is possible to fix the free portion 19b of the tape fastener 19 to the target tape 25 in a state where the wing elastic region 11 is extended together with the waist elastic region 10 where the region 10 is not stretched.
- the parent or caregiver can wear the diaper 1A to the wearer in a state where the wing elastic region 11 is extended in the lateral direction as well as the waist elastic region 10, and the diaper 1A can extend in the lateral direction of the wing elastic region 11.
- the diaper 1A will not be worn on the wearer when the diaper 1 is not fully stretched.
- the diaper 1A can securely tighten around the wearer's torso by using the contraction force of the waist elastic region 10 and the wing elastic region 11 when the diaper 1A is worn.
- the contraction force of the stretching regions 10 and 11 causes the both end portions 8 and both side portions 9 of the front and rear waist regions 5 and 7 to adhere to the wearer's skin, and the both end portions 8 and both side portions 9 shift. Moving can prevent the nappy diaper 1A from slipping off the wearing position.
- the diaper 1A does not give a partial feeling of pressure around the wearer's torso unless the waist elastic region 10 locally tightens around the wearer's torso.
- the diaper 1A has a waist elastic area 10 in the waist elastic area 10 in the front waist area 5 smaller than that in the wing elastic area 11 in the lateral direction in the waist elastic area 10 in the front waist area 5 so that the waist elastic area 10 in the previous waist area 5 is the wearer's torso. Even if tightened around, there is no discomfort to the wearer's diaper 1A that does not hinder the wearer's abdominal breathing.
- the second length dimension in the horizontal direction when the wing stretch area 11 is not extended is 100%, and the stretch area 11 when the wing stretch area 11 is extended until the second length dimension becomes 120%.
- the lateral stretch stress of the stretch area 11 becomes 3.0. — 10. It is in the ON range.
- the diaper 1A may be worn when the wing elastic area 11 is not sufficiently extended in the lateral direction.
- the elastic region 10 will be stretched by a slight tensile force. Therefore, the diaper 1 A must be worn with the wing elastic region 11 fully extended.
- the contraction force of the waist elastic region 10 does not substantially act, and it is not possible to tighten the waist of the wearer through the elastic region 10.
- the waist elastic region 10 tightens around the wearer's torso with an excessive amount of elongation stress. This gives a partial feeling of pressure around the wearer's torso and hinders the wearer's abdominal respiration.
- the contraction force of the wing expansion / contraction region 11 does not substantially act, and the wearer's waist cannot be tightened through the expansion / contraction region 11.
- the elongation stress in the waist elastic region 10 was measured by the following method.
- the sample is stretched until the length between the chucks of the first sample becomes 90%.
- the elongation stress of the first sample is measured, and the measured elongation stress is defined as the elongation stress in the lateral direction of the waist elastic region 10.
- the length between chucks when the second sample is not extended is set to 100%.
- the sample extends without sagging between the chucks.
- the second sample is pulled up and down at 100 mm / min so that the chucks are separated from each other, and the second sample is extended.
- the sample is stretched until the length between the chucks of the second sample reaches 120%, the elongation stress of the second sample at that time is measured, and the length between the chucks of the second sample is reduced to 150%.
- the elongation stress of the second sample at that time is measured, and the measured elongation stress is defined as the elongation stress in the lateral direction of the wing expansion / contraction area 11.
- FIGS. 5 and 6 are a partially broken perspective view of the diaper 1B shown as another example, and an end view taken along the line VI-VI of FIG. 5, and FIGS. 7 and 8 are lines VII-VII of FIG. 8 is a cross-sectional view taken along an arrow, and a cross-sectional view taken along a line VIII-VIII in FIG.
- the horizontal direction is indicated by an arrow L
- the vertical direction is indicated by an arrow M
- the thickness direction is indicated by an arrow N.
- the diaper 1B includes a liquid-permeable top sheet 2, a liquid-impermeable back sheet 3, and a front and back sheet 2,
- the liquid-absorbing core 4 interposed between 3 is a main component.
- the diaper 1B includes a front waist region 5 and a rear waist region 7 in the longitudinal direction, and a crotch region 6 located between the waist regions 5 and 7, and is located outside both end edges 4a of the core 4.
- the front and rear waist regions 5, 7 extend in the lateral direction, and both side portions 9 are located outside the side edges 4 b of the core 4 and extend vertically between the front and rear waist regions 5, 7.
- the diaper 1B is formed at the end 8 of the front and rear waist regions 5 and 7 and extends in the lateral direction. It has a wing stretchable region 11 which extends outward and can be sexually stretched. On both sides 9, a leak-proof sheet 12 extending in the vertical direction is attached.
- the topsheet 2 is formed from the same nonwoven cloth 13 as that of the diaper 1A, and the backsheet 3 is formed from the same film 14 and nonwoven cloth 15 as that of the diaper 1A.
- Core 4 is identical to that of diaper 1A.
- Both ends 8 are formed from an end 2a of the top sheet 2 and an end 3a of the back sheet 3 extending outward from the edge 4a of the core 4 in the vertical direction. At both end portions 8, the end portions 2a and 3a of the front and back sheets 2 and 3 are fixed in an overlapping state.
- the elasticity of the waist elastic region 10 is provided by a band-shaped first elastic member 16 (elastic member for the waist) which is shrinkably attached to the end 8 of the front and rear waist regions 5 and 7.
- the first elastic member 16 is interposed between the end 2a of the top sheet 2 and the end 3a of the back sheet 3, and is fixed to the inner surfaces of the sheets 2 and 3 in a state where the first elastic member 16 is extended at a predetermined magnification in the lateral direction. Have been. In the waist elastic region 10, a large number of gathers are formed on the front and back sheets 2, 3 in the thickness direction of the diaper 1B due to the contraction of the elastic member 16.
- the side portions 9 are formed by the side portions 2 b, 3 b of the front and back sheets 2, 3 extending outward in the vertical direction from the side edge 4 b of the core 4, and the fixed side portion 12 a of the leakproof sheet 12.
- the side 2b of the surface sheet 2 extends slightly laterally outward from the side edge 4b of the core 4, and further laterally outward from the side 2b, the side 3b and the side 12a. ing.
- the side portions 2b, 3b, 12a of the sheets 2, 3, 12 are fixed so as to overlap each other.
- Both side portions 9 of the rear waistline region 7 have a natural elasticity in the lateral direction, and are located between the waist elastic region 10 and the wing elastic region 11.
- the elasticity of the side portions 9 is provided by a second elastic member 22 which is shrinkably attached thereto.
- the second elastic member 22 is It has an almost rectangular shape that is long in the direction.
- the second elastic member 22 is interposed between the side portion 3b of the back sheet 3 and the fixed side portion 12a of the leak-proof sheet 12, and the inner surfaces of the sheets 3 and 12 are bonded with an adhesive (not shown). Fixed intermittently. When the second elastic member 22 is fixed to the back sheet 3 and the leak-proof sheet 12, the second elastic member 22 is in a state of being expanded in the lateral direction at a predetermined magnification.
- the back sheet 3 and the leak-proof sheet 12 shrink laterally due to the contraction of the elastic member 22, and a large number of gathers that undulate in the sheets 3 and 12 in the thickness direction of the diaper 1B. It is formed.
- the wing stretch area 11 is formed of a stretch sheet 18 having elasticity in the horizontal direction, which is separate from the front and back sheets 2 and 3 and the leakproof sheet 12.
- the transverse stretching stress is larger than the transverse stretching stress of the waist stretching region 10 and is smaller than the transverse stretching stress of both sides 9 of the rear waistline region 7.
- the wing expansion / contraction area 11 has a lateral inner end 11a interposed between the side part 3b of the back sheet 3 and the fixed side part 12a of the leak-proof sheet 12, and the inner end 11a is an inner surface of the sheets 3 and 12. It is fixed to.
- the length of the inner end 11a of the wing expansion / contraction area 11 in the vertical direction is substantially the same as that in the vertical direction of the second elastic member 22 attached to both side parts 9 of the rear waistline area 7.
- a tape fastener 19 (fastening means) extending in the lateral direction is attached to the lateral outer end 11b of the wing expansion / contraction area 11.
- the elastic sheet 18 is the same as that of the diaper 1A, and is formed from two air-permeable hydrophobic fiber nonwoven fabrics 20 and a gas-impermeable liquid-permeable and elastic plastic film 21 interposed between the nonwoven fabrics 20. ing.
- the nonwoven fabric 20 and the finolem 21 are intermittently joined via a number of dot-shaped heat-sealed portions 23.
- the tape fastener 19 has a fixed portion 19a fixed to the outer end l ib of the wing stretchable region 11, and a free portion 19b extending laterally outward from the fixed portion 19a. Freedom section 19b A number of hooks 24 extending in the thickness direction of the IB are attached.
- the tape fastener 19 and the hook 24 are formed from the same material as those of the diaper 1A.
- a target tape 25 (fixing means) for detachably fixing the free portion 19b of the tape fastener 19 is attached.
- the target tape 25 has a rectangular shape that is long in the lateral direction, and is fixed to the outer surface of the back sheet 3.
- the target tape 25 and the loop 26 are formed from the same material as those of the diaper 1A.
- the leakproof sheet 12 is formed of the same nonwoven fabric 27 as that of the diaper 1A.
- the leak-proof sheet 12 is located on both sides 9 and extends in the vertical direction, a fixed side 12a, a movable part 12b having an upright propensity above the topsheet 2, and a laterally extending part 12a located on both ends 8. And fixed both ends 12c.
- a stretchable elastic member 28 extending in the vertical direction is shrinkably attached.
- the fixed end portions 12c are fixed to the outer surface of the end portion 2a of the topsheet 2.
- the movable portion 12b rises above the topsheet 2 to form a barrier against excrement.
- the diaper 1B even if the tensile force acting on the wing elastic region 11 is transmitted to both sides 9 of the rear waist region 7, the tensile force is divided and suppressed by the both sides 9 having a larger extension stress than the elastic region 11. As a result, the tensile force transmitted from the wing stretching region 11 to the waist stretching region 10 can be reduced. Therefore, while the diaper 1B stretches the wing stretch zone 11, the diaper 1B stretches the waist stretch zone 10 which is smaller than the stretch zone 11 and has an extension stress in the lateral direction. The elastic portion 10 does not become too long.
- the free portion 19b of the tape fastener 19 can be fixed to the target tape 25 with the wing elastic region 11 extended together with the waist elastic region 10.
- the parent or caregiver can wear the diaper 1B on the wearer in a state where the wing elastic region 11 is extended in the lateral direction as well as the waist elastic region 10, and the diaper 1B can extend in the lateral direction of the wing elastic region 11.
- the diaper 1B will not be worn on the wearer when the stretch is insufficient.
- the diaper 1B can securely tighten the circumference of the wearer's torso by using the contraction force of the elastic regions 10 and 11 when the diaper 1B is worn.
- both ends 8 and both sides 9 of the front and rear waist regions 5 and 7 adhere to the wearer's skin by the contraction force of the elastic regions 10 and 11, and both ends 8 and both sides 9
- the slipping movement can prevent the slippery diaper 1B from slipping out of the wearing position.
- the diaper 1B does not give a partial feeling of pressure around the wearer's torso unless the waist elastic region 10 locally tightens around the wearer's torso.
- the waist elastic region 10 of the waist elastic region 10 of the front waist region 5 is smaller than that of the wing elastic region 11 in the lateral direction, so the waist elastic region 10 of the waist elastic region 5 of the front waist region 5 is the wearer's torso. Even if it is tightened, there is no discomfort to the wearer's diaper 1B that does not hinder the wearer's abdominal breathing.
- the first length dimension in the lateral direction of the elastic area 10 when the waist elastic area 10 is extended to the maximum in the lateral direction is 100%, and the first length dimension is 90%.
- the waist elastic region 10 is contracted, the lateral elongation stress of the elastic region 10 is in the range of 0.5-3.
- the wing stretch area 11 is extended so that the second length dimension is 120%, the lateral extension stress of the stretch area 11 is 1.5-7.
- the range of ON the second length dimension
- the wing stretch region 11 is extended so that the wing stretch ratio becomes 150%
- the lateral extension stress of the stretch region 11 is in the range of 3.0 to 10. ON.
- the third length dimension of both sides 9 when the both sides 9 of the rear waist region 7 are extended to the maximum in the lateral direction is 100%, and the third length dimension is from 100%.
- the lateral elongation stress of both sides 9 when contracting both sides 9 of rear waist region 7 to 90% is in the range of 520N. If the tensile stress at both sides 9 of the rear waist region 7 is less than the above value, the tensile force transmitted from the wing elastic region 11 to the waist elastic region 10 cannot be sufficiently suppressed at both sides 9 and the tensile force is reduced. It easily spreads from the stretch zone 11 to the waist stretch zone 10, and the stretch zone 10 stretches laterally before extending the stretch zone 11, and the wing stretch zone 11 expands in the horizontal direction. The diaper IB may be worn in an insufficient state.
- the measuring method of the extension stress in the waist extension region 10 and the extension stress in the wing extension region 11 is the same as that of the diaper 1A.
- the elongation stress at both sides 9 of the rear waist area 7 was measured by the following method.
- the sample is stretched until the length between the chucks of the third sample becomes 90%.
- the elongation stress of the third sample is measured, and the measured elongation stress is defined as the elongation stress in the lateral direction on both sides 9 of the rear waist region 7.
- any of a hydrophobic fiber nonwoven fabric having a large number of openings and a plastic film having a large number of fine openings can be used.
- the back sheet 3 may be made of any of a non-permeable air-permeable fibrous nonwoven fabric, a gas-permeable and liquid-impermeable plastic film, and a composite non-woven fabric obtained by laminating a non-permeable gas-permeable hydrophobic non-woven fabric.
- any one of a composite nonwoven fabric obtained by laminating air-permeable hydrophobic fiber nonwoven fabrics and a composite sheet obtained by laminating a gas-permeable hydrophobic fiber nonwoven fabric and a gas-permeable liquid-impermeable plastic film can be used.
- a fiber nonwoven fabric having a high water resistance by a melt blown method is laminated with a fiber nonwoven fabric formed by a spun bond method having high strength and good flexibility. It can use composite non-woven fabric (SM non-woven fabric, SMS non-woven fabric).
- the hydrophilic fiber nonwoven fabric can be made of any one of a synthetic fiber, a semi-synthetic fiber, and a regenerated fiber that has been subjected to a hydrophilic treatment, or a composite fiber obtained by mixing these fibers.
- Hydrophobic nonwoven fabrics can be made from synthetic fibers.
- the hydrophobic fiber nonwoven fabric may include semi-synthetic fibers or regenerated fibers that have been subjected to a water-repellent treatment.
- the synthetic fiber is not particularly limited, but polyester, polyacrylonitrile, polychlorinated vinyl, polyethylene, polypropylene, and polystyrene can be used.
- As the synthetic fibers core-sheath type composite fibers, side-by-side type composite fibers, modified hollow fibers, microporous fibers, and bonded type composite fibers can be used.
- a hot melt type adhesive As the adhesive, any of an acrylic adhesive and a rubber-based adhesive can be used in addition to the hot methanolic adhesive.
- the adhesive is preferably applied to the front and back sheets 2 and 3 and the leak-proof sheet 12 in any of spiral, zigzag, dot, and striped forms.
- the sheets 2, 3, 12 are intermittently fixed to each other, and the core 4 is intermittently attached to the sheets 2, 3. While being fixed, the elastic members 16, 17, 22, 28 force are intermittently fixed to the sheets 2, 3, and 12.
- the waist elastic region 10 may be formed at least at the end 8 of the rear waist region 7 of the front and rear waist regions 5 and 7.
- the first and second elastic members 16 and 22 may be thread-like. Any of natural rubber, synthetic rubber, and urethane foam can be used for the first and second elastic members 16 and 22, the leg elastic members 17 and the elastic members 28.
Landscapes
- 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
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04748116A EP1652500B1 (en) | 2003-07-30 | 2004-07-30 | Disposable diaper |
EP09156501.0A EP2087873B9 (en) | 2003-07-30 | 2004-07-30 | Disposable diaper |
BRPI0412620-3A BRPI0412620A (pt) | 2003-07-30 | 2004-07-30 | fralda descartável |
AT04748116T ATE546117T1 (de) | 2003-07-30 | 2004-07-30 | Einwegwindel |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003204004A JP3640356B2 (ja) | 2003-07-30 | 2003-07-30 | 使い捨ておむつ |
JP2003-204004 | 2003-07-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005011549A1 true WO2005011549A1 (ja) | 2005-02-10 |
Family
ID=34100655
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/010955 WO2005011549A1 (ja) | 2003-07-30 | 2004-07-30 | 使い捨ておむつ |
Country Status (11)
Country | Link |
---|---|
US (1) | US7156829B2 (ja) |
EP (2) | EP1652500B1 (ja) |
JP (1) | JP3640356B2 (ja) |
KR (1) | KR100765225B1 (ja) |
CN (2) | CN101507672A (ja) |
AT (1) | ATE546117T1 (ja) |
BR (1) | BRPI0412620A (ja) |
MY (1) | MY135859A (ja) |
RU (1) | RU2313324C2 (ja) |
TW (1) | TWI238710B (ja) |
WO (1) | WO2005011549A1 (ja) |
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JP4508892B2 (ja) * | 2005-01-31 | 2010-07-21 | 花王株式会社 | 使い捨ておむつ |
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JP4509024B2 (ja) * | 2005-12-28 | 2010-07-21 | 花王株式会社 | 使い捨ておむつ |
US20070208319A1 (en) * | 2006-03-06 | 2007-09-06 | Kao Corporation | Flat type disposable diaper |
ES2441591T3 (es) * | 2006-09-25 | 2014-02-05 | Sca Hygiene Products Ab | Prenda absorbente con cinturón y método para su fabricación |
JP2010527687A (ja) * | 2007-05-21 | 2010-08-19 | エスセーアー・ハイジーン・プロダクツ・アーベー | 改善されたフィット性を備える吸収用品 |
JP5328168B2 (ja) * | 2008-02-04 | 2013-10-30 | ユニ・チャーム株式会社 | 着用物品 |
CA2669462C (en) * | 2008-06-17 | 2014-03-18 | Arquest, Inc. | Hybrid stretch ear and absorbent article including the same |
WO2009157835A1 (en) * | 2008-06-27 | 2009-12-30 | Sca Hygiene Products Ab | Absorbent article with improved fit and improved capability to stay in place during use |
JP5374084B2 (ja) * | 2008-07-18 | 2013-12-25 | 大王製紙株式会社 | テープ式使い捨ておむつ |
JP5135097B2 (ja) * | 2008-07-18 | 2013-01-30 | 大王製紙株式会社 | テープ式使い捨ておむつ及びその製造方法 |
JP5258431B2 (ja) * | 2008-07-18 | 2013-08-07 | 大王製紙株式会社 | テープ式使い捨ておむつ |
WO2010016785A1 (en) * | 2008-08-05 | 2010-02-11 | Sca Hygiene Products Ab | Absorbent article |
US8690851B2 (en) * | 2008-08-29 | 2014-04-08 | Kimberly-Clark Worldwide, Inc. | Disposable absorbent article having tailored leg edge |
WO2011002369A1 (en) * | 2009-07-03 | 2011-01-06 | Sca Hygiene Products Ab | Absorbent article with embossed elastic side panels |
JP5695315B2 (ja) * | 2009-11-30 | 2015-04-01 | ユニ・チャーム株式会社 | 使い捨て着用物品 |
US20110313380A1 (en) * | 2010-06-21 | 2011-12-22 | Gregory Ashton | Disposable Absorbent Pant with Efficient Design and Convenient Single-Section Side Stretch Panels |
US8506544B2 (en) | 2010-06-21 | 2013-08-13 | The Procter & Gamble Company | Disposable absorbent pant with efficient design and convenient single-section side stretch panels |
US20110313382A1 (en) * | 2010-06-21 | 2011-12-22 | Gregory Ashton | Disposable Absorbent Pant with Efficient Design and Convenient Single-Section Side Stretch Panels |
CA2708701A1 (en) * | 2010-07-27 | 2010-09-30 | The Procter & Gamble Company | Fastening members with indicium |
US10117792B2 (en) | 2010-10-19 | 2018-11-06 | Medline Industries, Inc. | Absorbent articles and methods of manufacturing the same |
MX344365B (es) | 2010-10-19 | 2016-12-14 | Medline Ind Inc * | Articulos absorbentes y metodos para fabricarlos. |
JP5624949B2 (ja) * | 2011-06-14 | 2014-11-12 | ユニ・チャーム株式会社 | ペット用吸収性物品及びペット用吸収性物品の製造方法 |
TWI590813B (zh) * | 2011-07-01 | 2017-07-11 | Sca衛生產品公司 | 吸收性物品 |
USD716938S1 (en) | 2011-10-19 | 2014-11-04 | Medline Industries, Inc. | Absorbent core |
JP5586661B2 (ja) * | 2012-06-25 | 2014-09-10 | ユニ・チャーム株式会社 | 使い捨ての着用物品 |
JP6071435B2 (ja) * | 2012-11-05 | 2017-02-01 | 花王株式会社 | 展開型の使い捨ておむつ |
JP6212289B2 (ja) * | 2013-06-04 | 2017-10-11 | ユニ・チャーム株式会社 | 使い捨ておむつ |
US9486368B2 (en) | 2013-12-05 | 2016-11-08 | Medline Industries, Inc. | Disposable hygienic article with means for diagnostic testing |
US9375367B2 (en) | 2014-02-28 | 2016-06-28 | Medline Industries, Inc. | Fastener for an absorbent article |
US20150297419A1 (en) * | 2014-04-21 | 2015-10-22 | Medline Industries, Inc. | Stretch breathable protective absorbent article using bilaminate |
US9622922B2 (en) | 2014-04-21 | 2017-04-18 | Medline Industries, Inc. | Stretch breathable protective absorbent article using bilaminate |
US10226388B2 (en) | 2014-04-21 | 2019-03-12 | Medline Industries, Inc. | Stretch breathable protective absorbent article using tri-laminate |
CA2950323C (en) * | 2014-06-17 | 2022-10-04 | Medline Industries, Inc. | Stretch breathable protective absorbent article using bilaminate |
JP6442308B2 (ja) * | 2015-02-03 | 2018-12-19 | 花王株式会社 | テープ型使い捨ておむつ |
JP6049222B2 (ja) * | 2015-03-30 | 2016-12-21 | 大王製紙株式会社 | 吸収性物品及びその製造方法 |
JP6534874B2 (ja) * | 2015-06-30 | 2019-06-26 | ユニ・チャーム株式会社 | 使い捨て着用物品 |
WO2018089088A1 (en) | 2016-11-09 | 2018-05-17 | The Procter & Gamble Company | Array of absorbent articles with ear portions |
CN110062614A (zh) * | 2016-12-28 | 2019-07-26 | 尤妮佳股份有限公司 | 吸收性物品 |
CN110087598B (zh) * | 2016-12-28 | 2021-10-19 | 尤妮佳股份有限公司 | 吸收性物品 |
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2003
- 2003-07-30 JP JP2003204004A patent/JP3640356B2/ja not_active Expired - Fee Related
-
2004
- 2004-07-27 US US10/899,115 patent/US7156829B2/en not_active Expired - Lifetime
- 2004-07-28 MY MYPI20043024A patent/MY135859A/en unknown
- 2004-07-29 TW TW093122730A patent/TWI238710B/zh not_active IP Right Cessation
- 2004-07-30 EP EP04748116A patent/EP1652500B1/en not_active Expired - Lifetime
- 2004-07-30 EP EP09156501.0A patent/EP2087873B9/en not_active Revoked
- 2004-07-30 CN CNA2009101302366A patent/CN101507672A/zh active Pending
- 2004-07-30 BR BRPI0412620-3A patent/BRPI0412620A/pt not_active Application Discontinuation
- 2004-07-30 AT AT04748116T patent/ATE546117T1/de active
- 2004-07-30 CN CNB2004800219460A patent/CN100484505C/zh not_active Expired - Fee Related
- 2004-07-30 WO PCT/JP2004/010955 patent/WO2005011549A1/ja active Application Filing
- 2004-07-30 RU RU2006101096/14A patent/RU2313324C2/ru active
- 2004-07-30 KR KR1020067001283A patent/KR100765225B1/ko active IP Right Grant
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Also Published As
Publication number | Publication date |
---|---|
EP1652500A4 (en) | 2009-05-06 |
ATE546117T1 (de) | 2012-03-15 |
KR20060031691A (ko) | 2006-04-12 |
MY135859A (en) | 2008-07-31 |
EP2087873A1 (en) | 2009-08-12 |
RU2313324C2 (ru) | 2007-12-27 |
CN101507672A (zh) | 2009-08-19 |
CN1829492A (zh) | 2006-09-06 |
US20050027279A1 (en) | 2005-02-03 |
EP2087873B1 (en) | 2017-05-10 |
TW200513243A (en) | 2005-04-16 |
JP3640356B2 (ja) | 2005-04-20 |
BRPI0412620A (pt) | 2006-09-26 |
EP2087873B9 (en) | 2018-09-19 |
TWI238710B (en) | 2005-09-01 |
KR100765225B1 (ko) | 2007-10-10 |
CN100484505C (zh) | 2009-05-06 |
EP1652500A1 (en) | 2006-05-03 |
US7156829B2 (en) | 2007-01-02 |
JP2005046225A (ja) | 2005-02-24 |
EP1652500B1 (en) | 2012-02-22 |
RU2006101096A (ru) | 2007-07-27 |
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