WO2009087823A1 - 吸収性物品 - Google Patents
吸収性物品 Download PDFInfo
- Publication number
- WO2009087823A1 WO2009087823A1 PCT/JP2008/071076 JP2008071076W WO2009087823A1 WO 2009087823 A1 WO2009087823 A1 WO 2009087823A1 JP 2008071076 W JP2008071076 W JP 2008071076W WO 2009087823 A1 WO2009087823 A1 WO 2009087823A1
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- WIPO (PCT)
- Prior art keywords
- barrier sheet
- edge
- elastic members
- leak
- chassis
- Prior art date
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Classifications
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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
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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
- A61F13/49473—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means the edge leakage prevention means having a continuous closed form, e.g. circle, ellipse, rectangle
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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
- A61F13/495—Absorbent articles specially adapted to be worn around the waist, e.g. diapers with faecal cavity
Definitions
- the present invention relates to an absorbent article, and more particularly to absorbent articles such as disposable diapers, defecation training pants, and incontinence briefs.
- Patent Document 1 discloses a pants-type disposable diaper. This diaper has a liquid-absorbing structure inside a cover sheet formed in a pants shape, and a pair of sheet-like flaps spaced apart in the lateral direction are arranged on the liquid-absorbing structure. These flaps are connected to each other by a joint, and a front opening and a rear opening are formed by the flap and the joint. An elastic member is attached to the flap in an elongated state along the front-rear opening along the longitudinal direction. When the elastic member contracts, the joint portion is separated from the liquid absorbing structure, and a pocket through which urine flows is formed at the front opening, and a pocket through which stool flows is formed at the rear opening. Japanese National Patent Publication No. 9-510385
- the area of the front-rear opening is equal, and the opening angle of the elastic member along the opening is substantially equal.
- the front opening is made larger in order to prevent skin troubles on the wearer's external genitals, the rear opening will also become larger and it will not be possible to prevent excrement from adhering to the heel. If it is made smaller, the front opening becomes smaller and skin troubles to the external genitalia cannot be prevented.
- the present invention includes a longitudinal direction and a lateral direction, a body side and a clothing side, a front waist region, a rear waist region, a crotch region located between the front and rear waist regions, and a liquid absorbing structure disposed in the crotch region. And a barrier sheet formed on the body side of the chassis and separable from the chassis in the crotch region.
- the present invention provides the absorbent article, wherein the barrier sheet extends in the longitudinal direction and is opposed to the lateral direction, an intermediate portion that connects the lateral portions, and the front waist via the intermediate portion.
- a front communication portion located on the region side, a rear communication portion located on the rear waist region side, a front and rear end edge extending in the transverse direction and facing the longitudinal direction, and facing the transverse direction and the longitudinal direction
- first and second barrier sheet elastic members that are attached in an extended state and are substantially symmetric with respect to a longitudinal center line that bisects the lateral dimension.
- the front and rear end edges are fixed to the body side of the chassis, and the liquid absorbing structure is curved from the crotch region to the front and rear waist region, thereby forming a gap between the barrier sheet and the liquid absorbing structure.
- the front-rear communication portion can pass excrement toward the inside of the gap and is formed by the both side portions and the intermediate portion.
- the first and second barrier sheet elastic members include a front part along the front communication part and a rear part along the rear communication part, and the front and rear waist areas and the crotch area are substantially in the same plane.
- the front portion is located on the intermediate portion side of the front center line that bisects the longitudinal dimension of the front communication portion, and the lateral side of the first barrier sheet elastic member and the second barrier sheet elastic member is The distance between the direction is maximum, and the rear portion is closer to the rear edge than the rear center line that bisects the longitudinal dimension of the rear communication portion, and the first barrier sheet elastic member and the second barrier sheet. The distance in the lateral direction from the elastic member is maximized.
- the absorbent article includes a pair of leak-proof cuffs that are on the body side of the barrier sheet and are opposed to the lateral direction and extend in the longitudinal direction.
- the leak-proof cuff includes a fixed edge joined to the chassis, a free edge that can be separated from the chassis without being joined to the chassis, and the leak-proof cuff attached to the free edge in an extended state.
- a cuff elastic member for separating from the chassis.
- the barrier sheet and the leak-proof cuff are positioned between the fixed edge portion and the free edge portion facing in the lateral direction, and overlap the front portions of the first and second barrier sheet elastic members. It joins by the joining part, and the said front joining part is extended intermittently or continuously from the front-end edge of the said barrier sheet to the point where the said horizontal space
- the barrier sheet and the leak-proof cuff are joined to each other at a rear edge of the barrier sheet, and the rear portions of the first and second barrier sheet elastic members are connected to the barrier. While being joined in the vicinity of the rear edge of the sheet, the lateral distance between the first barrier sheet elastic member and the second barrier sheet elastic member is maximized at the joining portion.
- the dimension from the intermediate portion to a straight line connecting the points at which the distance between the front portions of the first and second barrier sheet elastic members is maximum is from the intermediate portion to the first and first portions. It is set shorter than the dimension to the straight line which connects the point where the space
- the first barrier sheet elastic member and the second barrier sheet elasticity are located on the intermediate portion side of the front midpoint that bisects the longitudinal dimension.
- the distance from the member is maximized. Therefore, the opening on the intermediate portion side of the front communication portion can be enlarged at the front portion, and stimulation to the external genitalia can be reduced and skin troubles can be suppressed.
- the distance between the first barrier sheet elastic member and the second barrier sheet elastic member is the maximum at the rear edge side of the rear middle point that bisects the longitudinal dimension. It is trying to become.
- the opening on the intermediate part side of the rear communication part does not increase, and it is possible to prevent excrement from adhering to the bag. That is, since the arrangement of the first and second barrier sheet elastic members is changed in the front / rear communication portion, the skin trouble of the wearer can be suppressed while maintaining the characteristics of the front / rear communication portion.
- the body side of the barrier sheet includes a leak-proof cuff so as to overlap both sides thereof, and the barrier sheet and the leak-proof cuff are joined at a front joint portion that overlaps the front part of the first and second barrier sheet elastic members. Since it joined, when the leak-proof cuff moves in the direction away from the chassis, it acts to pull both side portions of the barrier sheet outward in the lateral direction. Therefore, the opening of the front communication part can be widened, and irritation to the wearer's external genitalia can be reduced.
- the barrier sheet, the leak-proof cuff, and the first and second barrier sheet elastic members are joined in the vicinity of the rear edge of the barrier sheet, and the lateral distance between the first and second barrier sheet elastic members is maximum at this joining position. Therefore, the movement of the first and second barrier sheet elastic members in the lateral direction is restricted in the vicinity of the rear edge. Accordingly, the shape of both side portions of the barrier sheet to which the first and second barrier sheet elastic members are attached is stabilized, in other words, the position of the inner edge of the rear communication portion formed by the both side portions is stabilized. In addition, since it is hardly affected by the separation of the leak-proof cuff in the vicinity of the intermediate portion, a relatively narrow space between the first and second barrier sheet elastic members can be maintained. Since the opening of the rear communication portion does not become wide in the vicinity of the intermediate portion, it is possible to suppress stool from contacting the skin.
- the dimension from the middle part to the intersection with the straight line connecting the front maximum point is shorter than the dimension from the middle part to the intersection with the straight line connecting the rear maximum point. That is, the shapes of the first and second barrier sheet elastic members in the front communication portion and the rear communication portion can be different, and the front communication portion has the first and second barrier sheet elastic members on the intermediate portion side. The distance is maximized so that these elastic members do not come into contact with the external genitalia facing the front communication part. Therefore, the front communication part does not irritate the skin and can prevent skin troubles.
- FIG. 1 is a diagram showing a wearing state of the diaper 1.
- the diaper 1 includes a liquid-absorbing chassis 2, a barrier sheet 3, and a leak-proof cuff 4.
- the chassis 2 is formed in a pants shape and has a body-side inner surface 5 and a clothing-side outer surface 6, a front waist region 7, a rear waist region 8, and a crotch region 9 positioned between the front and rear waist regions 7 and 8.
- a direction from the front waist region 7 to the rear waist region 8 through the crotch region 9 is defined as a vertical direction Y, and a direction perpendicular thereto is defined as a horizontal direction X.
- the chassis 2 is formed by an inner sheet 11, an outer sheet 12, and a liquid-impervious leak-proof sheet 13 interposed between the inner and outer sheets 11, 12.
- the opposing surfaces of the waist side edge portions 14 and 15 overlap each other, and are joined to each other at a plurality of intermittently arranged joint portions 16 to form a seam portion.
- a waist opening 18 is formed in a region surrounded by the front and rear waist regions 7 and 8, and is surrounded by the joint portion 16 and the crotch region 9.
- a pair of leg openings 19 are formed.
- a plurality of waist elastic members 20 extend along the peripheral edge of the waist opening 18, and a plurality of leg elastic members 21 extend along the peripheral edge of the leg opening 19.
- the elastic members 20 and 21 are between the inner sheet 11 and the outer sheet 12, and are joined to at least one of the sheets 11 and 12 in an expanded state via an adhesive (not shown).
- FIG. 2 is a sectional view taken along line II-II in FIG.
- the liquid absorption structure 10 is disposed on the body-side inner surface 5 of the chassis 2, the barrier sheet 3 is disposed further on the body side than the liquid absorption structure 10, and further on the body side of the barrier sheet 3.
- a leak-proof cuff 4 is arranged.
- the liquid absorbing structure 10 extends in the longitudinal direction Y between the front and rear waist regions 7 and 8, but it only needs to be positioned at least in the crotch region 9.
- the liquid absorbing structure 10 includes a liquid absorbing panel 23 disposed along the inner side of the inner sheet 11.
- the liquid-absorbing panel 23 is formed of a liquid-absorbing core material 25 that is wrapped with a liquid-absorbing diffusion sheet 24 such as tissue paper, and an inner surface sheet 26 that further covers the liquid-absorbing diffusion sheet 24.
- the clothing side of the liquid-absorbent panel 23 is covered with a leak-proof sheet 13 disposed inside the outer sheet 12 to prevent body fluid absorbed by the core member 25 from leaking from the diaper 1.
- the leak-proof sheet 13 may be directly joined to the bottom surface of the liquid-absorbent panel 23.
- the front edge 27 and the rear edge 28 of the barrier sheet 3 are joined to the inner sheet 26 by adhesion or welding.
- the front end edge 27 and the rear end edge 28 are located in the front waist region 7 and the rear waist region 8, respectively.
- the crotch region 9 is curved, and the barrier sheet 3 is spaced upward from the inner surface sheet 26 by contraction of the barrier sheet elastic member described later. Since the front and rear end edges 27 and 28 of the barrier sheet 3 are joined to the inner sheet 26, the entire barrier sheet 3 has a shape like a hammock suspended. With such a shape, a gap 29 is formed between the barrier sheet 3 and the liquid-absorbing panel 23.
- the leak-proof cuff 4 is separated from the barrier sheet 3 so as to stand up by a cuff elastic member described later, and forms a wall extending in the front-rear direction Y.
- the diaper 3 removes the joining of the front and rear waist regions 7 and 8 in the joint part 16 of FIG. 1 and develops the diaper 1 in the longitudinal direction Y and the transverse direction X, so that the front and rear waist regions 7 and 8 and the crotch region 9 are coplanar.
- the diaper 1 has shown the state which does not act the elastic force of each elastic member so that it may become planar shape.
- the diaper 1 has a vertical center line PP that bisects the dimension in the horizontal direction X and a horizontal center line QQ that bisects the dimension in the vertical direction Y, with respect to the vertical center line PP. It is symmetrical.
- the chassis 2 is formed in an approximately hourglass shape, and the liquid absorbing panel 23 is formed in a rectangular shape and is laminated on the inner sheet 11 of the chassis 2.
- the barrier sheet 3 has both side portions 30, 31 facing in the lateral direction X and an intermediate portion 32 connecting the both side portions 30, 31, and the intermediate portion 32 is located in the crotch region 9.
- Front and rear communication portions 33 and 34 are formed by the side portions 30 and 31 and the intermediate portion 32.
- the front communication portion 33 is substantially U-shaped extending from the intermediate portion 32 toward the front waist region 7, and the rear communication portion 34 is substantially U-shaped extending from the intermediate portion 32 toward the rear waist region 8.
- the front communication portion 33 is defined by both inner edges 35 located on both side portions 30 and 31 and a curved closing edge 36 connecting the both inner edges 35.
- the rear communication portion 34 is defined by both inner edges 37 located on both side portions 30 and 31 and a curved closing edge 38 connecting the both inner edges 37.
- the leak-proof cuff 4 is formed from a pair of sheets extending in the longitudinal direction Y symmetrically with respect to the longitudinal center line PP, and this sheet is a non-woven fabric, a plastic film or the like, and is preferably impermeable to liquid.
- Each leak-proof cuff 4 is formed so as to overlap the body side of both side portions 30 and 31 of the barrier sheet 3.
- the dimension in the lateral direction X of the leak-proof cuff 4 is approximately the same as or larger than that of the side portions 30 and 31 of the barrier sheet 3.
- the diaper 1 When the diaper 1 is worn, the wearer's external genitals face the front communication part 33, the anus faces the rear communication part 34, and the skin between the external genitalia and the anus comes into contact with the intermediate part 32 To arrange.
- the closing edge 36 of the front communication portion 33 is positioned in front of the horizontal center line QQ, and the closing edge 38 of the rear communication portion 34 is above the horizontal center line QQ or the horizontal center line QQ. It is preferable that it is located in the vicinity.
- the liquid-absorbent panel 23 When worn in this manner, the liquid-absorbent panel 23 is curved in the longitudinal direction Y, and the barrier sheet 3 is lifted by the contraction of the first and second barrier sheet elastic members 39 and 40 and comes into contact with the wearer's skin.
- a gap 29 is formed between the barrier sheet 3 and the liquid absorbing panel 23 (see FIG. 2). Then, the excrement is passed through the gap 29 through the front and rear communication portions 33 and 34 so that the excrement and the skin of the wearer are not in direct contact with each other.
- FIG. 4 is a perspective view illustrating details of the barrier sheet 3, the leak-proof cuff 4, and the liquid-absorbing panel 23, and other components are omitted.
- a pair of first and second barrier sheet elastic members 39 and 40 extending in the longitudinal direction Y along the front and rear communication portions 33 and 34 are attached to the barrier sheet 3 in an extended state.
- the first and second barrier sheet elastic members 39 and 40 are attached substantially symmetrically with respect to the longitudinal center line PP, and the front portions 39a and 40a along the front communication portion 33 and the rear portion 39b along the rear communication portion 34.
- 40b, and convex portions 39c, 40c located between the front and rear portions and directed to the longitudinal center line PP at the intermediate portion 32.
- the first and second barrier sheet elastic members 39, 40 have the smallest width W1 in the lateral direction X at the convex portions 39c, 40c, and the front-rear portions 39a, 39b, 40a, 40b extend from the intermediate portion 32 to the front and rear ends. It spreads toward the edges 27 and 28 so that the interval in the lateral direction X increases.
- the barrier sheet 3 is overlapped with both side portions 30 and 31 folded back to the liquid-absorbing panel 23 side.
- the first and second barrier sheet elastic members 39, 40 are joined by an adhesive (not shown) between the two side portions 30, 31 that are overlapped.
- the barrier sheet 3 is joined to the inner sheet 26 of the liquid-absorbent panel 23 via an adhesive 45 at least at the front and rear end edges 27 and 28 which are folded back at both side portions 30 and 31.
- the front communication portion 33 of the barrier sheet 3 includes a front center line rr that bisects the dimension L1 in the longitudinal direction Y from the closing edge 36 to the front end edge 27 that forms the intermediate portion 32, and the rear communication portion 34 , Including a rear center line ss that bisects the longitudinal dimension Y2 from the closing edge 38 to the rear edge 28 forming the intermediate portion 32.
- the dimensions L1 and L2 are explained in a state where the elastic member shown in FIG. 4 is not contracted for explanation.
- the leak-proof cuff 4 is formed from a sheet folded in three layers so as to draw a Z-shape. Specifically, the leak-proof cuff 4 is located between the liquid-absorbent panel 23 and the chassis 2, and has a first surface 46 joined to the inner sheet 11 of the chassis 2, and the barrier sheet 3 from the first surface 46. It has a second surface 47 that is folded back on the wearer side and overlaps both side portions 30 or 31, and a third surface 48 that is folded on the wearer side of the second surface 47.
- first, second, and third surfaces 46, 47, and 48 are folded toward the wearer in this order, and the first surface 46 and the second surface 47 overlap with each other through the liquid-absorbing panel 23, and the second The surface 47 and the third surface 48 are directly overlapped.
- the side edge 49 located on the third surface 48 is folded back so that the cuff elastic member 50 can be attached.
- the cuff elastic member 50 is joined in a stretched state between the folded side edges 49 and attached in the longitudinal direction Y.
- the first, second and third surfaces 46, 47, 48 are joined to each other at the front and rear end portions 51, 52, and these are integrally joined to the inner sheet 11 of the chassis 2. I try to do it.
- the contraction force of the cuff elastic member 50 acts on the leak-proof cuff 4
- the second surface 47 and the third surface 48 are extended upward and separated from the barrier sheet 3 to form a wall as shown in FIG. 2.
- the part spaced apart from the barrier sheet 3, ie, the part which is not joined is made into the free edge.
- the barrier sheet 3 and the leak-proof cuff 4 are joined to each other at the front and rear joining portions 53 and 54.
- the front joint portion 53 is located between the fixed edge and the free edge, and is formed at a position overlapping the front portions 39a and 40a of the first and second barrier sheet elastic members 39 and 40. Further, the front joint portion 53 extends from the front end edge 27 to the intermediate portion 32 side with respect to the front center line rr.
- the rear joining portion 54 is formed at a position overlapping the rear portions 39b and 40b of the first and second barrier sheet elastic members 39 and 40, and extends between the rear end edge 28 and the rear center line ss.
- the rear joining portion 54 has a length dimension in the longitudinal direction Y shorter than that of the front joining portion 53.
- FIG. 5 is a perspective view of the barrier sheet 3, the leak-proof cuff 4, and the liquid-absorbing panel 23.
- FIG. 5 shows a state in which the first and second barrier sheet elastic members 39 and 40 and the cuff elastic member 50 are contracted and the liquid absorbing panel 23 is curved. Due to the contraction of the cuff elastic member 50, the leak-proof cuff 4 is separated so as to stand up from the liquid-absorbing panel 23. With the separation of the leak-proof cuff 4, the barrier sheet 3 is pulled up via the front and rear joining portions 53 and 54 and is pulled toward the outside in the lateral direction X. Since the front-rear joining portions 53, 54 are formed so as to overlap the first and second barrier sheet elastic members 39, 40, the first and second barrier sheet elastic members 39, 40 are formed at the front-rear joining portions 53, 54. Will be widened.
- the front joint portion 53 extends from the front end edge 27 to the intermediate portion 32 side with respect to the front center line rr, the first and second barrier sheet elastic members 39 and 40 are also pulled in this range. That is, in the front portions 39a and 40a, the front maximum points 41 and 42 that maximize the distance W2 are formed on the intermediate portion 32 side from the front edge 27 to the front center line rr. Since the rear joining portion 54 extends from the rear edge 28 to the rear center line ss, the interval W3 between the first and second barrier sheet elastic members 39, 40 is interposed between the rear portions 39b, 40b. The rear maximum points 43 and 44 are formed so that the maximum is.
- FIG. 6 is an end view taken along the line VI-VI in FIG. 4, and a two-dot chain line shows a state when the second barrier sheet elastic member 40 and the cuff elastic member 50 are contracted.
- the side portion 31 side of the barrier sheet 3 is described, but the same applies to the side portion 30.
- the free edges of the second surface 47 and the third surface 48 of the leak-proof cuff 4 are separated from the liquid-absorbing panel 23. Extend in the direction.
- the side portion 31 joined at the front joining portion 53 located on the second surface 47 is pulled away from the liquid-absorbent panel 23 and outward in the lateral direction X.
- the side portion 31 is pulled up so that the opening of the front communication portion 33 is widened.
- the maximum front points 41 and 42 located in the vicinity of the front communication portion 33 are located closer to the intermediate portion 32 than the front center line rr, and the maximum rear points 43 and 44 located in the vicinity of the rear communication portion 34 are provided.
- the rear edge 28 is positioned on the rear edge 28 side of the rear center line ss (see FIG. 5). That is, the dimension from the intermediate portion 32 to the intersection with the straight line connecting the front maximum points 41 and 42 is shorter than the dimension from the intermediate portion 32 to the intersection with the straight line connecting the rear maximum points 43 and 44. Therefore, the shapes of the first and second barrier sheet elastic members 39 and 40 in the front communication portion 33 and the rear communication portion 34 are different.
- the front communication portion 33 In the front communication portion 33, the external genitalia in which the first and second barrier sheet elastic members 39 and 40 are maximized on the intermediate portion 32 side so that these elastic members 39 and 40 face the front communication portion 33. To avoid contact. Therefore, the front communication portion 33 does not irritate the skin and can prevent skin troubles.
- the distance between the first and second barrier sheet elastic members 39, 40 is maximized on the rear edge 28 side, so that the opening of the rear communication part 34 is made smaller on the intermediate part 32 side. Can keep. Therefore, contact between excrement and phlegm can be prevented. Moreover, the barrier sheet 3 can be reliably brought into contact with the wearer's heel by reducing the distance between the rear portions 39b and 40b on the intermediate portion 32 side.
- the rear maximum points 43 and 44 can be formed in the vicinity of the rear edge 28.
- the barrier sheet 3, the leak-proof cuff 4, and the first and second barrier sheet elastic members 39 and 40 are joined to each other in the vicinity of the rear end edge 28. Therefore, in the vicinity of the rear end edge 28, the leakage prevention cuff 4 is not separated so as to rise, and the movement of the first and second barrier sheet elastic members 39, 40 in the lateral direction X by the leakage prevention cuff 4 is restricted.
- the shapes of the side portions 30 and 31 to which they are attached are stabilized.
- the rear communication portion 34 is formed by the both side portions 30, 31, as a result, the position of the inner edge 37 of the rear communication portion 34 is stabilized. Further, the opening on the intermediate portion 32 side of the rear communication part 34 can be kept even smaller.
- the joining region between the barrier sheet 3 and the leak-proof cuff 4 is narrowed and separated on the rear communication portion 34 side.
- the area becomes wider. Urine and the like can be absorbed between the barrier sheet 3 and the leak-proof cuff 4, and if the separation region between the barrier sheet 3 and the leak-proof cuff 4 becomes wide, the ability to absorb urine and the like can be improved. . Therefore, leakage of urine from the heel and back can be effectively prevented.
- a general rubber-based hot melt adhesive can be used as the adhesive for forming the joint portion 53. Moreover, you may make it form the junction part 53 using general joining means, such as a sonic seal and a heat seal.
- the barrier sheet 3 and the leak-proof cuff 4 are each formed by one sheet, but may be formed by bonding two sheets together. In this case, the barrier sheet elastic members 39 and 40 and the cuff elastic member 50 can be sandwiched and attached between the two sheets.
- the leak-proof cuff 4 is included as a structure for maximizing the distance between the first and second barrier sheet elastic members 39, 40.
- a tack is formed on both side portions of the barrier sheet 3.
- the distance between the first and second barrier sheet elastic members 39 and 40 can be maximized by being pulled outward in the lateral direction X at the portion where the tack is formed.
- interval of the 1st and 2nd barrier sheet elastic members 39 and 40 can also be expanded by joining the barrier sheet 3 to the inner surface sheet 11 other than the leak-proof cuff 4, for example. In this case, the interval between the first and second barrier sheet elastic members 39 and 40 can be increased by joining the both side portions 30 and 31 of the barrier sheet 3 to the inner surface sheet 11 located outside the lateral direction X. .
- the barrier sheet 3 and the leak-proof cuff 4 are liquid-resistant and breathable nonwoven fabric
- the inner sheet 11 and the outer sheet 12 are breathable nonwoven fabric
- the leak-proof sheet 13 is a plastic film
- the liquid-absorbent panel 23 is fluff pulp.
- Conventional materials in this technical field such as a mixture with superabsorbent polymer particles can be used.
- FIG. 7 shows a second embodiment of the present invention. This embodiment differs from the first embodiment in that it does not include a leak-proof cuff and in the mounting shape of the first and second barrier sheet elastic members 39, 40. Other components are the same, and the description of the same components is omitted.
- FIG. 7 is a diagram for explaining the details of the barrier sheet 3.
- the barrier sheet 3 shows a state where the contraction force of the first and second barrier sheet elastic members 39 and 40 is not acting.
- the first and second barrier sheet elastic members 39, 40 are disposed along the front-rear communication portions 33, 34.
- the first and second barrier sheet elastic members 39, 40 are arranged so that the distance between the front portions 39a, 40a is maximized between the intermediate portion 32 and the front center line rr when the elastic members 39, 40 are disposed.
- the distance between the rear portions 39b and 40b is maximized between the rear portion 28 and the rear center line ss.
- the first and second barrier sheet elastic members 39 and 40 contract from the state of FIG. 7, but the dimensional relationship of the barrier sheet 3 in the lateral direction X is There is little change. Accordingly, the front maximum points 41 and 42 where the distance between the front portions 39a and 40a is the maximum are formed between the intermediate portion 32 and the front center line rr, and between the rear edge 28 and the rear center line ss. Thus, rear maximum points 43 and 44 where the distance between the rear portions 39b and 40b is maximized are formed.
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- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (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
特許文献1にはパンツ型の使い捨ておむつが開示されている。このおむつは、パンツ型に形成された被覆シートの内側に吸液構造体を有し、吸液構造体上にはその横方向に離間する一対のシート状のフラップが配置されている。これらフラップは互いに接合部によって連結され、フラップと接合部によって前方開口と、後方開口とが形成される。フラップには、前後方開口に沿って、縦方向にわたって弾性部材が伸長状態で取り付けられている。この弾性部材が収縮すると、接合部が吸液構造体から離間し、前方開口では尿が流入するポケットを形成し、後方開口では便が流入するポケットを形成する。
外性器に前方開口縁が接触すると、これが肌に対する刺激となり肌トラブルの原因となるが、肌トラブルを誘発するのは、開口縁に沿って取り付けられた弾性部材に起因するところが大きい。すなわち、弾性部材がシート状のフラップに取り付けられることによって、シートを吸液構造体から身体側に離間させるとともに、その開口を維持するように作用する。このときシートを介して弾性部材が肌に接触する。シートは通常柔軟性が高く、肌に接触しても肌トラブルを誘発する可能性は低いが、弾性部材が取り付けられることによって、シートに剛性が付与されるために、シートを介して弾性部材が接触した場合に肌に対する刺激が大きくなる。
2 シャーシ
3 バリアシート
4 防漏カフ
5 身体側内面
6 着衣側外面
7 前ウエスト域
8 後ウエスト域
9 股下域
10 吸液構造体
27 前端縁
28 後端縁
29 空隙
30 側部分
31 側部分
32 中間部分
33 前方連通部
34 後方連通部
39 第1バリアシート弾性部材
40 第2バリアシート弾性部材
41 前方最大点
42 前方最大点
43 後方最大点
44 後方最大点
50 カフ弾性部材
53 前方接合部位
54 後方接合部位
図1はおむつ1の着用状態を示した図である。図示したように、おむつ1は吸液性のシャーシ2とバリアシート3と防漏カフ4とを含む。シャーシ2はパンツ型に形成され、身体側内面5および着衣側外面6と、前ウエスト域7、後ウエスト域8および前記前後ウエスト域7,8間に位置する股下域9を有している。前ウエスト域7から股下域9を通って後ウエスト域8へと向かう方向を縦方向Yとし、これに直行する方向を横方向Xとしている。シャーシ2は、内側シート11と外側シート12と、これら内外側シート11,12の間に介在する不透液性の防漏シート13とによって形成されている。
接合部16でウエスト側縁部14,15が接合されることにより、前後ウエスト域7,8で囲まれた領域にウエスト開口18が形成されるとともに、接合部16と股下域9とで囲まれた一対の脚開口19が形成されている。ウエスト開口18の周縁部に沿って複数条のウエスト弾性部材20が延び、脚開口19の周縁部に沿って複数条の脚弾性部材21が延びている。それら弾性部材20,21は、内側シート11と外側シート12との間にあり、これらシート11,12の少なくとも一方に接着剤(図示せず)を介して伸長状態で接合されている。
バリアシート3は、横方向Xに対向する両側部分30,31と両側部分30,31の間をつなぐ中間部分32とを有し、中間部分32は股下域9に位置している。両側部分30,31および中間部分32によって前後方連通部33,34を形成している。前方連通部33は、中間部分32から前ウエスト域7に向かって延びるほぼU字形であり、後方連通部34は、中間部分32から後ウエスト域8に向かって延びるほぼU字形である。前方連通部33は、両側部分30,31に位置する両内側縁35と、これら両内側縁35をつなぐ湾曲した閉鎖縁36とによって画成される。後方連通部34は両側部分30,31に位置する両内側縁37と、これら両内側縁37をつなぐ湾曲した閉鎖縁38とによって画成される。
バリアシート3には、前後方連通部33,34に沿って縦方向Yに延びる一対の第1および第2バリアシート弾性部材39,40を伸長状態で取り付けている。第1および第2バリアシート弾性部材39,40は縦中心線P-Pを挟んでほぼ対称に取り付けられ、前方連通部33に沿う前方部39a,40aと、後方連通部34に沿う後方部39b,40bと、これら前後方部の間に位置し中間部分32において縦中心線P-Pに向かう凸状部39c,40cとを含む。第1および第2バリアシート弾性部材39,40は、凸状部39c,40cにおいてもっともその横方向Xの間隔W1が小さくなり、前後方部39a,39b,40a,40bは中間部分32から前後端縁27,28に向かってその横方向Xの間隔が大きくなるように広がっている。
バリアシート3は、少なくとも前後端縁27,28においてその両側部分30,31で折り返された部分を吸液性パネル23の内面シート26に接着剤45を介して接合している。
後方接合部位54は、第1および第2バリアシート弾性部材39,40の後方部39b、40bに重なる位置に形成され、後端縁28から後方中心線s-sまでの間において延びている。後方接合部位54は縦方向Yの長さ寸法が、前方接合部位53よりも短くされている。
後方接合部位54は後端縁28から後方中心線s-sとの間にまで延びているので、後方部39b,40bにおいてはこの間で第1および第2バリアシート弾性部材39,40の間隔W3を最大とする後方最大点43,44が形成される。
バリアシート3および防漏カフ4は、それぞれ一枚のシートで形成されているが、二枚のシートを張り合わせて形成するようにしてもよい。この場合には、バリアシート弾性部材39,40およびカフ弾性部材50をそれぞれ二枚のシートの間に挟んで取り付けることができる。
図7は本発明の第2の実施形態を示したものである。この実施形態では、防漏カフを備えていないこと、第1および第2バリアシート弾性部材39,40の取り付け形状において、第1の実施形態と異なる。他の構成要素は同じであり、同じ構成要素の説明を省略する。
Claims (4)
- 縦方向および横方向と、身体側および着衣側と、前ウエスト域、後ウエスト域および前記前後ウエスト域間に位置する股下域と、前記股下域に配置される吸液構造体とを有するシャーシと、前記シャーシの前記身体側にあって前記股下域において前記シャーシから離間可能に形成されたバリアシートとを含む吸収性物品において、
前記バリアシートは、前記縦方向に延びるとともに前記横方向に対向する両側部分と、前記両側部分の間をつなぐ中間部分と、前記中間部分を介して前記前ウエスト域側に位置する前方連通部と、前記後ウエスト域側に位置する後方連通部と、前記横方向に延びるとともに前記縦方向に対向する前後端縁と、前記横方向に対向して前記縦方向に延びるとともに伸長状態で取り付けられ前記横方向の寸法を二等分する縦中心線にほぼ対称となる第1および第2バリアシート弾性部材とを含み、前記前後端縁が前記シャーシの身体側に固着され、前記吸液構造体が前記股下域から前記前後ウエスト域に湾曲することによって、前記バリアシートと前記吸液構造体との間に空隙を形成し、
前記前後方連通部は、前記空隙の内部に向かって排泄物を通過させることが可能であって前記両側部分および前記中間部分によって形成され、
前記第1および第2バリアシート弾性部材は、前記前方連通部に沿う前方部と、前記後方連通部に沿う後方部とを含み、
前記前後ウエスト域および前記股下域がほぼ同一平面となる状態において、前記前方部は、前記前方連通部の縦方向の寸法を二等分する前方中心線よりも前記中間部分側で、前記第1バリアシート弾性部材と前記第2バリアシート弾性部材との前記横方向の間隔が最大となり、
前記後方部は、前記後方連通部の縦方向の寸法を二等分する後方中心線よりも前記後端縁側で、前記第1バリアシート弾性部材と前記第2バリアシート弾性部材との前記横方向の間隔が最大となることを特徴とする前記吸収性物品。 - 前記吸収性物品は、前記バリアシートの身体側であって前記横方向に対向し前記縦方向に延びる一対の防漏カフを含み、
前記防漏カフは、前記シャーシに接合される固定縁部と、前記シャーシに接合されることなく前記シャーシから離間可能な自由縁部と、前記自由縁部に伸長状態で取り付けられ前記防漏カフを前記シャーシから離間させるカフ弾性部材とを含み、
前記バリアシートと前記防漏カフとは、前記横方向に対向する前記固定縁部と前記自由縁部との間に位置するとともに前記第1および第2バリアシート弾性部材の前記前方部に重なる前方接合部位によって接合され、前記前方接合部位は、前記バリアシートの前端縁から前記第1および第2バリアシート弾性部材の前記横方向の間隔が最大となる点まで間欠または連続的に延びている請求項1記載の吸収性物品。 - 前記バリアシートと前記防漏カフとは、前記バリアシートの後端縁において後方接合部位を介して互いに接合され、前記第1および第2バリアシート弾性部材の前記後方部は、前記バリアシートの後端縁近傍において接合されるとともに、この接合部位で前記第1バリアシート弾性部材と前記第2バリアシート弾性部材との前記横方向の間隔が最大となる請求項2記載の吸収性物品。
- 前記中間部分から前記第1および第2バリアシート弾性部材の前方部の間隔が最大となる点を結ぶ直線までの寸法が、前記中間部分から前記第1および第2バリアシート弾性部材の後方部の間隔が最大となる点を結ぶ直線までの寸法よりも短く設定されている請求項1~3のいずれかに記載の吸収性物品。
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US12/812,098 US20110015606A1 (en) | 2008-01-11 | 2008-11-20 | Absorbent article |
EP08870193A EP2236112A4 (en) | 2008-01-11 | 2008-11-20 | ABSORBENT ARTICLE |
CN2008801273757A CN101945628A (zh) | 2008-01-11 | 2008-11-20 | 吸收性物品 |
AU2008346002A AU2008346002A1 (en) | 2008-01-11 | 2008-11-20 | Absorbent article |
CA2711812A CA2711812A1 (en) | 2008-01-11 | 2008-11-20 | Absorbent article |
MX2010007561A MX2010007561A (es) | 2008-01-11 | 2008-11-20 | Articulo absorbente. |
EA201070832A EA201070832A1 (ru) | 2008-01-11 | 2008-11-20 | Абсорбирующее изделие |
UAA201009897A UA97437C2 (en) | 2008-01-11 | 2008-11-20 | Absorptive article |
BRPI0819958-2A BRPI0819958A2 (pt) | 2008-01-11 | 2008-11-20 | "artigo absorvente" |
MA33069A MA32066B1 (fr) | 2008-01-11 | 2010-08-09 | Article absorbant |
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AU2010287902B2 (en) * | 2009-08-31 | 2015-06-11 | Unicharm Corporation | Wearing article |
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JP2009291321A (ja) * | 2008-06-03 | 2009-12-17 | Uni Charm Corp | 吸収性物品 |
JP5185765B2 (ja) * | 2008-10-14 | 2013-04-17 | 株式会社リブドゥコーポレーション | 使い捨てパンツ型おむつ |
CN102715985A (zh) * | 2012-06-28 | 2012-10-10 | 杭州豪悦实业有限公司 | 一种成人失禁裤 |
EP2835122A1 (en) * | 2013-08-08 | 2015-02-11 | The Procter & Gamble Company | Diaper with cuff connector |
EP2835123A1 (en) * | 2013-08-08 | 2015-02-11 | The Procter & Gamble Company | Cuff connector material |
JP6213877B2 (ja) | 2014-09-29 | 2017-10-18 | 大王製紙株式会社 | パンツタイプ使い捨ておむつ |
EP3072486A1 (en) | 2015-03-25 | 2016-09-28 | The Procter and Gamble Company | Absorbent article with improved design |
EP3072487A1 (en) | 2015-03-25 | 2016-09-28 | The Procter and Gamble Company | Absorbent article with improved containment |
EP3072485A1 (en) | 2015-03-25 | 2016-09-28 | The Procter and Gamble Company | Absorbent article with improved fit |
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- 2008-11-20 KR KR1020107017802A patent/KR20100113114A/ko not_active Application Discontinuation
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- 2008-11-20 EA EA201070832A patent/EA201070832A1/ru unknown
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- 2008-11-20 CN CN2008801273757A patent/CN101945628A/zh active Pending
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2009
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- 2010-08-09 MA MA33069A patent/MA32066B1/fr unknown
- 2010-08-10 CO CO10098042A patent/CO6290620A2/es not_active Application Discontinuation
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UA97437C2 (en) | 2012-02-10 |
BRPI0819958A2 (pt) | 2015-06-16 |
MA32066B1 (fr) | 2011-02-01 |
JP2009165556A (ja) | 2009-07-30 |
AU2008346002A1 (en) | 2009-07-16 |
EP2236112A1 (en) | 2010-10-06 |
CA2711812A1 (en) | 2009-07-16 |
CO6290620A2 (es) | 2011-06-20 |
ZA201005682B (en) | 2011-04-28 |
CN101945628A (zh) | 2011-01-12 |
US20110015606A1 (en) | 2011-01-20 |
MX2010007561A (es) | 2010-09-30 |
EA201070832A1 (ru) | 2011-02-28 |
KR20100113114A (ko) | 2010-10-20 |
EP2236112A4 (en) | 2012-12-19 |
TW200946087A (en) | 2009-11-16 |
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