WO2020162386A1 - Article absorbant - Google Patents

Article absorbant Download PDF

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Publication number
WO2020162386A1
WO2020162386A1 PCT/JP2020/003890 JP2020003890W WO2020162386A1 WO 2020162386 A1 WO2020162386 A1 WO 2020162386A1 JP 2020003890 W JP2020003890 W JP 2020003890W WO 2020162386 A1 WO2020162386 A1 WO 2020162386A1
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WO
WIPO (PCT)
Prior art keywords
central
absorbent core
width direction
region
base point
Prior art date
Application number
PCT/JP2020/003890
Other languages
English (en)
Japanese (ja)
Inventor
黒田　賢一郎
丸山　貴史
カナポン チャテゥラパターノン
野田　祐樹
Original Assignee
ユニ・チャーム株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ユニ・チャーム株式会社 filed Critical ユニ・チャーム株式会社
Publication of WO2020162386A1 publication Critical patent/WO2020162386A1/fr

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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
    • A61F13/47—Sanitary towels, incontinence pads or napkins
    • 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
    • A61F13/53—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 absorbing medium
    • A61F13/531—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 absorbing medium having a homogeneous composition through the thickness of the pad
    • A61F13/532—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 absorbing medium having a homogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad
    • 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
    • A61F13/53—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 absorbing medium
    • A61F13/531—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 absorbing medium having a homogeneous composition through the thickness of the pad
    • A61F13/532—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 absorbing medium having a homogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad
    • A61F13/533—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 absorbing medium having a homogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad having discontinuous areas of compression

Definitions

  • the present invention relates to an absorbent article provided with a pair of bent base points that extend in the front-rear direction with the widthwise center of the absorbent article sandwiched therebetween.
  • Patent Document 1 discloses an absorbent article having a pair of bent base points extending in the front-rear direction with the widthwise center of the absorbent article sandwiched therebetween.
  • the bent base point portion is arranged in a central region facing the wearer's excretion opening.
  • a force is applied to the central region from the outside in the width direction to the inside in the width direction.
  • the central region is deformed with the bending base point portion as a base point, and the region sandwiched by the bending base point portions is deformed so as to bulge toward the wearer.
  • the width of the central region in the width direction becomes shorter. Therefore, there is a risk of lateral leakage of body fluid diffused in the width direction rather than the bending base point portion.
  • the absorbent article according to one aspect is a front-rear direction and a width direction orthogonal to each other, a central region facing a wearer's excretory opening, a rear side region located rearward of the central region, and a central region from the central region.
  • a pair of bent base points extending in the front-rear direction with the widthwise center of the absorbent article interposed therebetween is provided, and the maximum width of the absorbent core in the central region is the maximum of the absorbent core in the front side region.
  • the outer edge of the absorbent core is located substantially outside the folding base point portion in the width direction, and the central area is a central central area including the center in the front-rear direction in the central area. And a central end portion located outside of the central center portion in the front-rear direction, and a distance in the width direction between the outer edge of the absorbent core and the folding base point portion in the central central portion, It is longer than the distance between the outer edge of the absorbent core at the central end and the bent base point in the width direction.
  • FIG. 2 is a cross-sectional view of the absorbent article taken along the line AA of FIG. 1. It is an enlarged view of the B section of FIG. It is a top view of an absorption core. It is a perspective view of the absorptive article of a wearing state. It is sectional drawing of the absorbent article in a worn state. It is sectional drawing of the absorbent article in a worn state.
  • the absorbent article according to one aspect is a front-rear direction and a width direction orthogonal to each other, a central region facing a wearer's excretory opening, a rear side region located rearward of the central region, and a central region.
  • the outer edge of the absorbent core is located substantially outside in the width direction with respect to the folding base point portion, and the central region includes a central central portion including the center in the front-rear direction in the central region.
  • a central end portion located outside in the front-rear direction with respect to the central central portion, the outer edge of the absorbent core in the central central portion and the widthwise distance of the bent base point portion, It is longer than the distance between the outer edge of the absorbent core at the central end and the bent base point in the width direction.
  • the central area When the central area is sandwiched by the wearer's legs when worn, the area sandwiched by the bent base points of the central area is deformed to bulge toward the wearer and fits into the excretory opening.
  • the central region is more likely to receive the force of the wearer's legs than the front region, and the length in the width direction is likely to be shorter.
  • the maximum width of the absorbent core in the central region is longer than the maximum width of the absorbent core in the front region, it is easy to secure the length in the width direction of the absorbent core in the central region and lateral leakage can be suppressed.
  • the central central portion is more likely to be arranged near the excretory opening than the central end portion, and the body fluid is easily guided.
  • an outer edge of the absorbent core in the central central portion may be located outside of the outer edge of the absorbent core in the central end portion in the width direction.
  • the central part of the central area is particularly susceptible to the force of the leg in the central area, and the length in the width direction is likely to be short.
  • the outer edge of the absorbent core in the central central portion is located outside the outer edge of the absorbent core in the central end portion in the width direction, it is easy to secure the widthwise length of the absorbent core in the central central portion. Leakage can be suppressed.
  • the bent base point portion may be configured by a compressed portion obtained by compressing at least the absorbent core in the thickness direction.
  • the bending base point portion composed of the compressed portion has a difference in rigidity and a thickness as compared with the surroundings, and is likely to be a base point for deformation.
  • the bending base point portion, which is the compressed portion has a higher density than the surroundings, and it is easy to draw body fluid. Therefore, it is possible to diffuse the bodily fluid that has reached the bending base point portion in the front-rear direction while making it more difficult to diffuse it to the outer side in the width direction than the bending base point portion, and to further suppress lateral leakage.
  • a side squeezing portion obtained by compressing at least the absorbent core in a thickness direction is provided in a region outside the bending base point portion in the width direction, and the side squeezing portion has the thickness.
  • the deepest part in the depth direction may be located closer to the skin surface than the deepest part in the thickness direction of the compressed part.
  • the side squeezing portion enhances the rigidity of the region outside the folding base point portion in the width direction, and prevents the region outside the folding base point portion from being too wide when sandwiched by the legs. Therefore, the length in the width direction of the region outside the bending base point in the width direction can be secured, and lateral leakage can be suppressed.
  • the compression degree of the side squeezing portion is weak, the rigidity of the region outside the bending base point portion in the width direction does not become too high, and the region outside the bending base point portion in the width direction touches the leg. It is possible to suppress a sense of discomfort.
  • the absorbent core in the region sandwiched between the pair of bending base points has a grammage lower than that of the absorbent core in a region outside the pair of bending base points in the width direction.
  • a high high basis weight section may be provided.
  • the high basis weight portion increases the absorption capacity of body fluid in the region between the pair of folding base points, reduces the body fluid reaching the region outside the folding base point in the width direction, and further suppresses side leakage.
  • the high basis weight portion increases the thickness of the region between the pair of folding base points, thereby improving the fit of the region between the pair of folding base points to the excretory opening.
  • the high basis weight portion increases the rigidity of the region between the pair of folding base points, and it is possible to suppress unintended bending and bending when a force inward in the width direction is applied, and it is possible to secure fit.
  • At least a part of the region sandwiched by the pair of bent base points may be provided with a central compression part that compresses at least the absorption core.
  • the draw-in property of the body fluid in the region between the pair of folding base points is enhanced, the body fluid reaching the region outside the folding base point portion in the width direction is reduced, and lateral leakage can be further suppressed. ..
  • the central squeezing portion increases the rigidity of the region between the pair of bending base point portions, and it is possible to suppress unintentional bending and bending when a force inward in the width direction is applied, and it is possible to secure fit.
  • a joint portion for joining the absorbent article to a wearing article has a main body joint portion arranged in a region overlapping with the absorbent core.
  • the part may be arranged in a region of the central central part that does not overlap the outer edge of the absorbent core.
  • the force of being pinched by the wearer's legs is likely to be applied to the central central portion, and particularly to the outer edge of the absorbent core in the central central portion.
  • the main body joint portion does not overlap with the outer edge of the absorbent core in the central central portion, the outer edge of the absorbent core in the central central portion is not pulled toward the wearing article side, and easily stands up with respect to the wearing article.
  • the wing has a fold that is folded back toward the non-skin surface side of the wearing article when worn, and the outer edge of the absorbent core is located inside the width direction with respect to the wing in the central region.
  • the absorbent core in the central region is not folded back to the non-skin surface side together with the wing, and easily stands up with respect to the worn article.
  • the skin sheet has a surface sheet, and a pair of side sheets that cover an outer portion of the surface sheet in the width direction, and each of the pair of side sheets has a pair of side sheets.
  • a leak-proof wall is formed, and the leak-proof wall is an upright portion that is upright with respect to the surface sheet, and a width fulcrum portion that is an upright fulcrum of the upright portion outside the upright portion in the width direction.
  • the leak preventive wall may be located outside the bent base point portion in the width direction.
  • the leak prevention wall that covers the side of the excretion opening is formed outside the bent base point portion in the width direction, and side leakage can be suppressed. Therefore, when the body fluid diffuses outward in the width direction from the folding base point portion, the body fluid can be absorbed by the absorbent core outside the folding base point portion in the width direction, and lateral leakage can be suppressed by the leak preventive wall.
  • an outer edge of the absorbent core in the central center portion may be located outside the width fulcrum portion in the width direction.
  • the bodily fluid when the bodily fluid is not drawn into the absorbent core promptly or when the absorbing capacity of the absorbent core is exceeded, the bodily fluid remains on the skin sheet and is transmitted to the outside in the width direction.
  • a width fulcrum part which is a fulcrum of the rising part of the leakproof wall may be reached. This diffusion of body fluid is likely to occur in the central central portion where body fluid is easily guided.
  • the outer edge of the absorbent core in the central portion is located outside the width fulcrum in the width direction, even if body fluid reaches the width fulcrum, the reached body fluid can be absorbed by the absorbent core and lateral leakage is suppressed. it can.
  • the outer edge of the absorbent core includes a pair of first constricted portions that are arranged at intervals in the width direction and extend inward in the width direction, and the first constricted portion is It may be arranged on the rear side of the central portion.
  • the pair of first constricted portions absorbs the twist in the rear region, and the twist is less likely to be transmitted to the central portion of the center. Therefore, it is possible to secure both the fit property with respect to the excretion opening in the central portion and the effect of suppressing side leakage.
  • the first constricted portion may be located in front of the rear end edge of the central region.
  • the inward force in the width direction applied to the central region can be divided by the first constricted portion, and the rear region can be arranged along the buttocks.
  • the force from the rear side area can be divided by the first constricted portion, and the force applied to the rear side area is less likely to be applied to the central portion of the center, and the width in the width direction of the absorbent core in the central portion is secured. Leakage can be suppressed.
  • the outer edge of the absorbent core has a pair of second constricted portions which are arranged at intervals in the width direction and extend inward in the width direction, and the second constricted portion is It may be arranged in front of the central portion.
  • the force from the front side region can be divided by the second constricted portion, the force applied to the front side region becomes difficult to be applied to the central central portion, and the width in the width direction of the absorbent core in the central central portion is secured, Side leakage can be suppressed.
  • the bent base point portion may have a curved shape that bulges inward in the width direction from the central end portion toward the central center portion. Since it has a curved shape that bulges inward in the width direction from the central end portion toward the central center portion, it is easy to transmit the force inward in the width direction between the bending base point portions at the central central portion, and the bending base point portion The area between them is more likely to swell toward the body side, and the fit with respect to the excretory opening can be further improved.
  • Absorbent articles include sanitary napkins, panty liners, and adult incontinence pads.
  • the absorbent article may be an article that is used by being attached to the inside of a wearing article such as underwear.
  • FIG. 1 is a plan view of the absorbent article as seen from the skin side in the embodiment.
  • FIG. 2 is a plan view of the absorbent article as seen from the non-skin surface side in the embodiment.
  • FIG. 3 is a sectional view taken along the line AA shown in FIG.
  • the “skin surface side” corresponds to the side facing the wearer's skin during use.
  • the “non-skin side” corresponds to the side facing away from the wearer's skin during use.
  • the constituent members that make up the absorbent article are separated in the thickness direction. However, in an actual product, the constituent members are in contact with each other in the thickness direction, and a dent is formed by the compressed portion.
  • the absorbent article may be a sports absorbent article.
  • the absorbent article for sports is an absorbent article suitable for sports.
  • the absorbent article for sports is an absorbent article that meets at least one of the following 1 to 3. 1. At least one of the absorbent article itself, the packaging sheet for individually packaging the absorbent article, and the package containing a plurality of the absorbent articles is for sports, or has characters or a pattern reminiscent of sports Absorbent article. 2. Absorbent articles that have been shown to be for sports in promotional tools (advertisements, sales promotion items) for absorbent articles. 3. Absorbent articles that can be used without feeling uncomfortable during sports activities that are not performed in normal life. For example, an absorbent article that is flexible and does not interfere with sports movements such as moving the legs greatly.
  • a durable absorbent article that can be used without damaging the absorbent body or absorbent article even in sports for a long time such as running for a long time.
  • Absorbent article that does not feel discomfort even when the wearer sweats without causing twisting or slipping.
  • the present embodiment has a function display pattern reminiscent of sports, and absorbs twist during sports by the squeezing section that constitutes the function display pattern, so that it can be used comfortably during sports.
  • the absorbent article 1 has a front-back direction L, a width direction W, and a thickness direction T.
  • the front-rear direction L is a direction extending from the front side (abdominal side) of the wearer to the rear side (back side), or a direction extending from the rear side of the wearer to the front side.
  • the width direction W is a direction orthogonal to the front-rear direction L.
  • the thickness direction T is a direction extending from the wearer's skin surface side T1 to the non-skin surface side T2, and is a direction orthogonal to the front-rear direction L and the width direction W.
  • the skin surface side T1 corresponds to the side facing the wearer's skin during use.
  • the non-skin surface side T2 corresponds to the side opposite to the skin surface side T1 in use, that is, the side facing away from the wearer's skin.
  • the absorbent article 1 has a central area S3, a front area S1 and a rear area S2.
  • the central area S3 is an area facing the excretory opening (eg, vaginal opening) of the wearer.
  • the central region S3 is located at the crotch portion of the underwear. That is, the central area S3 is an area that is arranged between the wearer's inseam, that is, between the wearer's feet.
  • the front area S1 is located on the front side of the central area S3.
  • the front edge of the front side region S1 defines the front edge of the absorbent article 1.
  • the rear area S2 is located rearward of the central area S3.
  • the rear edge of the rear area S2 defines the rear edge of the absorbent article 1.
  • the length of the rear region S2 in the front-rear direction L may be longer than the length of the central region S3 in the front-rear direction L.
  • Wing 3 described below may be provided in the central area S3.
  • the front end edge 3F of the wing 3 is defined by the root of the wing 3, and corresponds to the portion located on the front side of the two portions recessed inward in the width direction W.
  • the front edge 3F of the wing 3 may define the boundary between the central area S3 and the front area S1.
  • the rear end edge 3R of the wing 3 is defined by the root of the wing 3, and corresponds to a portion located on the rear side of the two recessed portions inward in the width direction W.
  • the rear edge 3R of the wing 3 may be located between the central area S3 and the rear area S2.
  • the area between the front end edge of the wing 3 and the rear end edge of the wing 3 in the front-rear direction L is referred to as a “wing area”.
  • the inner edge of the wing is the root of the wing and serves as an imaginary line FL1 (see FIG. 1) that connects the front end edge 3F of the wing 3 and the rear end edge 3R of the wing 3.
  • the central area S3 is substantially the same area as the wing area. Therefore, in this specification, it should be noted that the word “central area S3" can be read as "wing area”. Further, in the case of an absorbent article having no wings, the central region S3 may be a middle region obtained by dividing the absorbent core 30 into three equal parts in the front-rear direction L, or the absorbent article having the high basis weight portion 33. In the article, it may be a region having the high basis weight portion 33.
  • the central area S3 has a central central portion S31 including the central central line S3CL, and a central end portion S32 located outside the central central portion S31 in the front-rear direction L.
  • the central centerline S3CL is a line that passes through the center of the central region S3 in the front-rear direction L and extends in the width direction W.
  • the central central portion S31 is an area that includes the central central line S3CL and has a certain range in the front-rear direction from the central central line S3CL.
  • the central end portion S32 is composed of a region having a constant range from the front edge of the central region S3 and a region having a constant range from the rear edge of the central region S3.
  • the central central portion S31 is sandwiched by the central end portions S32 in the front-rear direction.
  • the central central portion S31 is configured by the centrally located region among the three regions divided in the rearward direction of the central region S3.
  • a region provided with a wing joint portion 62, which will be described later, may be the central central portion S31, and a region outside the central central portion S31 in the front-rear direction may be the central end portion S32.
  • the absorbent article 1 has a skin sheet 10, a non-skin sheet 20, and an absorbent core 30.
  • the skin sheet 10 is provided on the skin surface side T1 of the absorbent core 30.
  • the non-skin surface sheet 20 is provided on the non-skin surface side T2 with respect to the absorbent core 30.
  • the absorbent core 30 is provided between the skin sheet 10 and the non-skin sheet 20.
  • the skin sheet 10 is a liquid-permeable sheet that allows liquids such as body fluids to pass therethrough, and is made of any sheet-like material having a liquid-permeable structure, such as non-woven fabric, woven fabric, perforated plastic sheet, and mesh sheet.
  • the skin sheet 10 may include a topsheet 11 that covers the center of the absorbent core 30 in the width direction, and a sidesheet 12 that covers the outer portion of the topsheet 11 and extends outward from the topsheet 11 in the width direction. ..
  • the topsheet 11 may cover at least the center of the absorbent core 30 in the widthwise direction W, and the sidesheets 12 may cover the outer sides of the topsheet 11 in the widthwise direction W and extend outside the topsheet 11 in the widthwise direction W. ..
  • the side sheet 12 may be a hydrophobic sheet from the viewpoint of leakproofness.
  • a second sheet may be arranged between the skin sheet and the absorbent core (or core wrap).
  • the outer portion in the present invention is a portion that occupies a certain range in the width direction W including the outer edge in the width direction W, and the outer edge is the outer edge in the width direction W.
  • the inner portion in the present invention is a portion that occupies a certain range in the width direction W including the inner edge in the width direction W, and the inner edge is the inner edge in the width direction W.
  • the front end portion and the rear end portion in the present invention are portions that occupy a certain range in the front-rear direction L including the edge in the front-rear direction L, and the front end edge and the rear end edge are edges in the front-rear direction L.
  • the outer end portion includes a front end portion and a rear end portion.
  • the side sheet 12 may form a leak preventive wall 65. Side leakage can be suppressed by the leak preventive wall 65.
  • the leak-proof wall 65 has an upright portion 66 that can be upright with respect to the topsheet 11, and a width fulcrum portion 67 that is an upright fulcrum of the upright portion 66 outside the upright portion 66 in the width direction W. Good.
  • the upright portion 66 is configured by a portion that is not joined to the topsheet 11 in the inner portion of the side sheet 12.
  • the standing portion 66 may have a leak-proof stretchable member that stretches in the front-rear direction.
  • the width fulcrum portion 67 serves as an upright fulcrum of the upright portion 66, and is configured by a portion in which the side sheet 12 is joined to the top sheet 11.
  • the side sheet 12 can stand upright with respect to the top sheet 11 from the width fulcrum portion 67 where the side sheet 12 is joined to the top sheet 11.
  • Part 66 that is not joined together can stand up.
  • the leak-proof wall 65 may have a front-rear fulcrum portion 68 that serves as an upright fulcrum of the upright portion 66 outside the upright portion 66 in the front-rear direction.
  • the non-skin surface sheet 20 is a liquid impermeable sheet.
  • a polyethylene sheet, a laminated nonwoven fabric mainly composed of polypropylene, a breathable resin film, a sheet in which a breathable resin film is joined to a nonwoven fabric such as spunbond or spunlace is used. it can.
  • the absorbent core 30 is arranged at least in the central area S3 and the rear area S2.
  • the absorbent core 30 may also be arranged in the front area S1.
  • the absorbent core 30 is laminated with an absorbent material that absorbs liquid, and may be covered with a core wrap (not shown).
  • the absorbent material forming the absorbent core 30 can be formed of, for example, hydrophilic fibers, pulp, and super absorbent polymer (SAP).
  • the absorbent core 30 may include thermoplastic resin fibers.
  • the core wrap can be composed of, for example, non-woven fabric or tissue.
  • the core wraps may be arranged on the skin surface side T1 of the absorbent core 30 and on the non-skin surface side T2 of the absorbent core 30, respectively.
  • the absorbent core 30 may not have the core wrap.
  • the absorbent core 30 may be covered with the skin sheet 10 and the non-skin sheet 20. The absorbent core 30 will be described in detail later.
  • the absorbent article 1 has the wings 3.
  • the wings 3 extend outward in the width direction W from the outer edges of the absorbent core 30 in the central region S3.
  • the wings 3 may be formed by laminating the skin surface sheet 10 and the non-skin surface sheet 20.
  • the wings 3 are configured to be folded back toward the non-skin surface sheet 20 side.
  • the wing 3 is folded back to the non-skin surface side of the crotch portion of the underwear as a wearing article when used.
  • the absorbent article may have a hip flap.
  • the hip flaps may extend outward of the outer edge of the absorbent core 30 in the central region S3 in the width direction W and may be formed by laminating the skin sheet 10 and the non-skin sheet 20.
  • the hip flap may be located rearward of the wings 3 and may be provided in the rear side area S2.
  • the hip flap is not folded back during use and is placed between the underwear and the buttocks of the wearer.
  • the hip flap may or may not be provided with an absorbent material.
  • the absorbent article 1 has a joint portion provided with an adhesive for joining the absorbent article 1 to a wearing article such as underwear.
  • the joint portion may include a main body joint portion 61 arranged in a region overlapping with the absorbent core 30, and a wing joint portion 62 arranged in the wing 3.
  • the main body joint portions 61 extend in the front-rear direction L and are arranged at intervals in the width direction W.
  • the main body joint portions 61 are not arranged on the article width center line 1WC, which is the center of the absorbent article in the width direction W, but are arranged in a plurality of rows on both sides of the article width center line 1WC in the width direction W, respectively.
  • the article width center line 1WC is a line that passes through the center of the absorbent article in the width direction W and extends in the front-rear direction L.
  • the main body joint portions 61 are arranged in eight rows on each side of the article width center line 1WC in the width direction W.
  • the length in the front-rear direction of the main body joint portions 61 located in the outermost row in the width direction W may be longer than the length in the front-rear direction of the other main body joint portions 61.
  • These joints are provided on the non-skin surface side of the non-skin surface sheet 20.
  • the joint part may be covered with the covering sheet before use. The covering sheet prevents deterioration of the adhesive at the joint portion before use and is removed by the wearer when the absorbent article is used.
  • At least the central area S3 of the absorbent article 1 is provided with a pair of bent base points 71 extending in the front-rear direction with the center of the absorbent article 1 in the width direction W interposed therebetween.
  • the folding base point portion 71 may be provided only in the central area S3, may extend over the front area S1, or may extend over the rear area S2.
  • the folding base point portion 71 has only to extend over at least the central center line S3CL, and may be provided not in the entire front-rear direction of the central region S3 but in a part of the front-rear direction.
  • the front end edge 71F of the folding base point portion 71 of the present embodiment is located rearward of the front end edge of the central area S3, and the rear end edge 71R of the folding base point portion 71 is located below the rear end edge of the central area S3. May also be located on the front side.
  • the bent base points 71 are separated from each other in the width direction W with respect to the article width centerline 1WC, and are arranged in a pair with the article width centerline 1WC interposed therebetween.
  • the bent base point portion 71 extends in the front-rear direction L.
  • the folding base point portion 71 may extend at least in the front-rear direction, may be parallel to the front-rear direction L, or may be inclined with respect to the front-rear direction L.
  • the bending base point portion 71 may have a curved shape that bulges inward in the width direction W in a plan view, or may have a curved shape that bulges outward in the width direction W.
  • the bent base point portion 71 may be formed of an aggregate of a plurality of dot-shaped portions, or may be linear.
  • the bending base point portion 71 functions as a deformation base point of the absorbent article.
  • the bending base point portion 71 may be a base point of deformation due to a difference in rigidity, a difference in thickness, a difference in basis weight of the absorbent core, or the like.
  • at least a compression portion obtained by compressing the absorbent core in the thickness direction. A low basis weight part where the basis weight of the absorbent core is lower than the surroundings, a high basis weight part where the basis weight of the absorbent core is higher than the surroundings, and a low thickness part where the thickness of the absorbent core is thinner than the surroundings, the thickness of the absorbent core is It can be configured by at least one of high-thickness portions thicker than the surroundings, or a combination thereof.
  • FIG. 4 is an enlarged view of portion B in FIG.
  • the folding base point portion 71 of the present embodiment is configured by the folding compression portion 81 as the compression portion 80.
  • the bent pressing unit 81 may be configured by an assembly of a low pressure pressing unit 81L and a high pressure pressing unit 81H having a higher degree of compression than the low pressure pressing unit 81L.
  • the depth of the low-pressure pressing portion 81L is shallower than the depth of the high-pressure pressing portion 81H. That is, the degree of compression of the low-pressure pressing portion 81L is weaker than the degree of compression of the high-pressure pressing portion 81H.
  • the bent base point portion 71 may overlap the absorbent core 30. It preferably functions as a deformation starting point of the absorbent core.
  • the outer edge 30E of the absorbent core 30 is located outside the bending base point portion 71 in the width direction W, and the outer edge 30E of the absorbent core 30 and the bending base point portion 71 are separated from each other in the width direction W. .. Therefore, the absorbent core is arranged in each of the region outside the folding base point portion 71 in the width direction W and the region sandwiched between the folding base point portions 71.
  • the compression unit 80 may include a front compression unit 82, a rear compression unit 83, a side compression unit 85, and a central compression unit 86, in addition to the bending compression unit that constitutes the bending base point unit 71. ..
  • a front compression unit 82 a rear compression unit 83, a side compression unit 85, and a central compression unit 86, in addition to the bending compression unit that constitutes the bending base point unit 71. ..
  • the front squeezing section 82, the rear squeezing section 83, the side squeezing section 85, and the central squeezing section 86 at least the absorbent core is compressed in the thickness direction, and the skin sheet and the absorbent core are compressed in the thickness direction. Good.
  • the front squeezing section 82 may be located on the front side of the bending base point section 71 and may be disposed across the front side area S1 and the central area S3.
  • the rear squeezing portion 83 may be located rearward of the bent base point portion 71 and may be disposed across the rear side area S2 and the central area S3.
  • Each of the front squeezing section 82 and the rear squeezing section 83 has an X shape having a first line and a second line intersecting with the first line at an intersection, and has an extension portion extending in four directions from the intersection. You may have.
  • the side compression part 85 has a curved shape in a plan view, and a plurality of side compression parts 85 are provided at intervals.
  • the side compression portion 85 may have a line shape in which a convex shape that bulges inward in the width direction W and a convex shape that bulges outward in the width direction W are continuous in the front-rear direction.
  • the side squeezing portion 85 may be provided mainly outside the bending base point portion 71 in the width direction W, on the front side of the front squeezing portion 82, and on the rear side of the rear squeezing portion 83.
  • the side compression part 85 may be provided also in the area
  • the side squeezing portion 85 may extend inward of the folding base point portion 71 in the width direction W, may extend to the rear side of the front squeezing portion 82, and may extend to the rear squeezing portion 83. It may extend to the front side.
  • the central compression part 86 is provided in a region sandwiched between the pair of bent base points 71.
  • the central compression portions 86 are dot-shaped, and a plurality of central compression portions 86 are arranged at intervals in the front-rear direction and the width direction W.
  • the central compression part 86 may be provided in the area
  • the depth of the central pressing portion 86 may be deeper than at least the side pressing portion 85. That is, the bottom surface of the central compression portion 86 may be located closer to the non-skin surface side T2 than the bottom surface of the side compression portion 85. According to this configuration, when the central region S3 fits into the ostium of the vagina, the central compression portion 86 facilitates drawing body fluid such as menstrual blood toward the absorbent core 30.
  • FIG. 5 is a plan view of the absorbent core 30.
  • the length of the absorbent core 30 in the width direction W changes in the front-rear direction.
  • the maximum width WMS3 of the absorbent core 30 in the central region S3 is longer than the maximum width WMS1 of the absorbent core 30 in the front region S1.
  • the central area S3 is more likely to receive the force of the wearer's legs than the front area S1, and the length in the width direction W is likely to be shorter.
  • the maximum width WMS3 of the absorbent core 30 in the central region S3 is longer than the maximum width WMS1 of the absorbent core 30 in the front region S1, it is easy to secure the length in the width direction W of the absorbent core 30 in the central region S3, and Leakage can be suppressed.
  • the maximum width WMS3 of the absorbent core 30 in the central area S3 may be the same as the maximum width WMS2 of the absorbent core in the rear area, or may be shorter than the maximum width of the absorbent core in the rear area S2. ..
  • the absorbent core of the rear side region S2 is arranged so as to cover the buttocks, and may be provided relatively widely. Further, the absorbent core in the rear side region S2 is less likely to be subjected to a force that is pinched by the wearer's legs when worn, and is less likely to be deformed by the force pinched by the wearer's legs, like the front side region and the central region. ..
  • the outer edge 30E of the absorbent core 30 in the central region S3 may have a convex shape that bulges outward in the width direction W, and the outer edge 30E of the absorbent core 30 in the central center portion S31 may be the absorbent core in the central end portion S32.
  • the outer edge 30E of 30 may be located outside in the width direction W. It is sufficient that the outer edge 30E of the absorbent core 30 is located outside the outer edge 30E of the absorbent core 30 at the central end S32 in the width direction W in at least a part of the central portion S31.
  • the maximum width WMS3 of the absorbent core 30 in the central region S3 may be located on the central centerline S3CL.
  • the central center portion S31 is most likely to receive the innermost force in the width direction W even in the central region S3. By ensuring the length in the width direction W of the absorbent core 30 in the central central portion S31, lateral leakage can be further suppressed.
  • the distance in the width direction W between the outer edge 30E of the absorbent core and the bent base point portion 71 may change in the front-rear direction.
  • the distance G11 in the width direction W between the outer edge 30E of the absorbent core 30 and the bending base point portion 71 in the central central portion S31 is the distance G12 in the width direction between the outer edge 30E of the absorbent core and the bending base point portion 71 in the central end portion S32. , Longer than G13.
  • the distance G11 is the distance between the outer edge 30E of the absorbent core 30 and the outer edge of the bent base point portion 71 in the central center portion S31.
  • G12 is the distance between the outer edge 30E of the absorbent core and the outer edge of the bent base point portion 71 at the central end portion S32 located on the front side of the central central portion S31.
  • G13 is the distance between the outer edge 30E of the absorbent core and the outer edge of the bent base point portion 71 at the central end portion S32 located on the rear side of the central central portion S31.
  • G11 may change within the central center portion S31, and G12 and G13 may change within the central end portion S32. In the form in which G11, G12, and G13 change, the maximum value of G11 is longer than the maximum value of G12, and the maximum value of G11 is longer than the maximum value of G13. Further, G12 and G13 may be different.
  • the distance in the width direction W between the outer edge 30E of the absorbent core 30 and the bent base point portion 71 may be longer toward the central center line S3CL.
  • the outer edge 30E of the absorbent core 30 has a curved shape that bulges outward in the width direction W from the central end portion S32 toward the central central portion S31, and the bending base point portion 71 extends from the central end portion S32. It has a curved shape that bulges inward in the width direction W toward the central central portion S31.
  • the outer edge 30E of the absorbent core 30 has a curved shape that bulges outward in the width direction W from the central end S32 toward the central center S31.
  • the curved base point portion 71 is parallel to the front-rear direction, and the outer edge 30E of the absorbent core 30 and the bent base point portion 71 both bulge outward in the width direction W from the central end portion S32 toward the central central portion S31. It is possible to exemplify a configuration in which the bent base point portion 71 has a curved shape and the degree of expansion thereof is gentler.
  • the maximum width WMS3 of the absorbent core 30 in the central region S3 is provided over a certain range extending in the front-rear direction L. Good. When a force directed inward in the width direction W is applied, it is easier to suppress width entry and side leakage can be suppressed.
  • the outer edge of the absorbent core 30 in the central central portion S31 of the present embodiment extends parallel to the front-rear direction L from the central central line S3CL.
  • the outer edge 30E of the absorbent core 30 is provided with a constricted portion 90 constricted on the inner side in the width direction W.
  • the constricted portion has a first constricted portion 91 arranged rearward of the central central portion S31 and a second constricted portion 92 arranged frontward of the central central portion S31.
  • the first constricted portion 91 and the second constricted portion 92 sandwich the article width centerline 1WC and are arranged in a pair in the width direction W at intervals.
  • the constricted portion 90 is formed of a thin portion that is thinner than a portion of the absorbent core 30 where a part of the absorbent core 30 is notched or other portion of the absorbent core 30.
  • the absorbent core 30 is configured by a cutout portion. Note that the shape of the constricted portion can be appropriately changed as necessary.
  • the first constricted portion 91 extends inward in the width direction W from the outer edge 30E of the absorbent core 30.
  • the first constricted portion includes an inner end (tip) 91A located at an inner edge in the width direction, a first rear side edge 91C extending rearward from the inner end 91A, and a first front side edge 91B extending frontward from the inner end 91A.
  • a rear outer end 91E which is an intersection of the first rear side edge 91C and the outer edge 30E of the absorbent core, and a front outer end 91D which is an intersection of the first front side edge 91B and the outer edge 30E of the absorbent core.
  • the inner end (tip) 91A is biased to the front side with respect to the center of the first constricted portion 91 in the front-rear direction.
  • the length of the first front side edge 91B in the front-rear direction is shorter than the length of the first rear side edge 91C in the front-rear direction.
  • the length of the first constricted portion 91 in the front-rear direction L decreases toward the inside in the width direction W.
  • the second constricted portion 92 extends inward in the width direction W from the outer edge 30E of the absorbent core 30.
  • the second constricted portion 92 has an inner end (tip) 92A located at an inner edge in the width direction, a second rear side edge 92C extending rearward from the inner end 92A, and a second front side edge extending frontward from the inner end 92A.
  • the inner end (tip) 92A is biased rearward from the center of the second constricted portion 92 in the front-rear direction.
  • the length of the second front side edge 92B in the front-rear direction is longer than the length of the second rear side edge 92C in the front-rear direction.
  • the length of the second constricted portion 92 in the front-rear direction decreases toward the inside in the width direction W.
  • the basis weight of the absorbent core 30 may be constant or may be partially different.
  • the absorbent core 30 may be provided with a high basis weight portion 33 having a higher basis weight than the surrounding absorbent cores 30.
  • the high grammage portion 33 of the present embodiment is an area where the grammage of the absorbent core is T higher than the area outside the bending base point portion 71 in the width direction W.
  • the high basis weight portion 33 may be provided in at least a part of the region sandwiched by the pair of bent base point portions 71.
  • FIG. 6 is a perspective view schematically showing a state in which the absorbent article is attached to underwear S as a wearing article.
  • 7 and 8 show a worn state based on the cross section shown in FIG.
  • FIG. 7 shows a state in which a force directed inward in the width direction W is not received
  • FIG. 8 shows a state in which a force directed inward in the width direction W is received.
  • the absorbent article of the present embodiment is configured so as to be able to suppress lateral leakage in the central region S3 while ensuring the fit property with respect to the excretory opening.
  • the central area S3 is more susceptible to the wearer's leg force than the front area, and the length in the width direction W is likely to be shorter.
  • the maximum width WMS3 of the absorbent core in the central region S3 is longer than the maximum width WMS1 of the absorbent core in the front region S1, it is easy to secure the length in the width direction W of the absorbent core in the central region S3 and suppress lateral leakage. it can.
  • the central central portion S31 is most likely to receive the force of the wearer's legs, and the length in the width direction W tends to be short. Further, the central central portion S31 is more likely to be disposed near the excretory opening than the central end portion S32, and body fluid is more likely to be guided. However, since the distance between the outer edge 30E of the absorbent core 30 and the folding base point portion 71 in the central center portion S31 is relatively long, the body fluid may be present in the region outside the folding base point portion 71 in the width direction W in the central central portion S31. Even if guided, the absorbent core located outside the bent base point portion 71 in the width direction W can absorb body fluid and suppress lateral leakage.
  • the central end portion S32 is easier to be arranged apart from the excretory opening than the central central portion S31, and the body fluid is less likely to be guided. Therefore, even if the distance between the outer edge 30E of the absorbent core 30 and the bent base point portion 71 at the central end S32 is relatively short, the lateral leakage of body fluid can be suppressed. Therefore, it is possible to suppress the lateral leakage in the central region S3 while ensuring the fitting property of the region sandwiched by the bent base points 71 with respect to the excretory opening.
  • the outer edge 30E of the absorbent core 30 in the central central portion S31 may be located outside the outer edge 30E of the absorbent core 30 in the central end portion S32 in the width direction W. Even in the central region S3, the central central portion S31 is most likely to receive the force of the wearer's legs, and the length in the width direction W tends to be short. However, the outer edge 30E of the absorbent core 30 in the central center portion S31 is located outside the outer edge 30E of the absorbent core 30 in the central end portion S32 in the width direction W, and the outer edge 30E in the width direction W of the absorbent core in the central central portion S31. It is easy to secure the length and side leakage can be suppressed.
  • the bent base point portion 71 may have a curved shape that bulges inward in the width direction W from the central end portion S32 toward the central central portion S31. Since it has a curved shape that bulges inward in the width direction W from the central end S32 toward the central center S31, it is easy to transmit an inward force in the width W between the folding base points 71 in the central center S31. The region between the bent base points 71 is more likely to swell toward the body side, and the fit with respect to the excretory opening can be further improved.
  • the folding base point portion 71 may be configured by the folding pressing portion 81.
  • the bending pressing part 81 has a difference in rigidity and a difference in thickness as compared with the surroundings, and is likely to become a deformation starting point.
  • the bending squeezing section 81 has a higher density than the surroundings, and is easy to draw in body fluid. Therefore, the body fluid that has reached the bending base point portion 71 is diffused in the front-rear direction L, and is less likely to be diffused outside the bending base point portion 71 in the width direction W, so that lateral leakage can be further suppressed.
  • the deepest part DM85 in the thickness direction of the side compression part 85 may be located closer to the skin surface side T1 than the deepest part DM81 in the thickness direction of the bent compression part 81. That is, the degree of compression of the side compression portion 85 may be weaker than the degree of compression of the bent compression portion 81. According to this configuration, the side compression portion 85 enhances the rigidity of the region outside the folding base point portion 71 in the width direction W, and when sandwiched by the legs, is located outside the folding base point portion 71 in the width direction W. It is possible to prevent the area from being too wide.
  • the length in the width direction W of the region outside the bending base point portion 71 in the width direction W can be secured, and lateral leakage can be suppressed.
  • the degree of compression of the side squeezing portion 85 is weak in the area outside the bending base point portion 71 in the width direction W, the rigidity does not become too high, and the discomfort when touching the leg can be suppressed.
  • the deepest part DM85 of the side press part 85 is located on the skin surface side T1 rather than the deepest part of the high pressure press part 81H.
  • the deepest portion DM85 of the side compression portion 85 may have the same depth as the non-skin surface side or the thickness direction than the deepest portion of the low pressure compression portion 81L.
  • the high basis weight portion 33 may be provided in the area sandwiched between the pair of bent base points 71.
  • the high basis weight portion 33 increases the absorption capacity of body fluid in the area between the pair of folding base points 71, reduces the body fluid reaching the area outside the folding base point portion 71 in the width direction W, and prevents side leakage. Can be suppressed more. Further, the high basis weight portion 33 increases the thickness of the region between the pair of bending base points 71, and the fit of the region between the pair of bending base points 71 to the excretory opening can be improved.
  • the high basis weight portion 33 increases the rigidity of the region between the pair of folding base point portions 71, and it is possible to suppress unintentional twisting and bending when a force directed inward in the width direction W is applied, and the fitting property is improved. Can be secured.
  • a central squeezing section 86 may be provided in the area sandwiched between the pair of bent base points 71. According to this configuration, the fluid drawability in the region between the pair of folding base points 71 is enhanced, the body fluid reaching the region outside the folding base point portion 71 in the width direction W is reduced, and side leakage is prevented. Can be suppressed more. Further, the central squeezing portion 86 increases the rigidity of the region between the pair of bending base points 71, and can prevent unintentional twisting and bending when a force inward in the width direction W is applied, thus ensuring fit. it can.
  • the main body joint portion 61 may be arranged in a region that does not overlap the outer edge 30E of the absorbent core 30 in the central central portion S31.
  • the main body joint portion 61 may be arranged inside the outer edge 30E of the absorbent core 30 in the central center portion S31 in the width direction W. The force of being pinched by the wearer's legs is likely to be applied to the central central portion S31, and particularly to the outer edge 30E of the absorbent core 30 in the central central portion S31.
  • the main body joint portion 61 does not overlap the outer edge 30E of the absorbent core 30 in the central central portion S31, the outer edge 30E of the absorbent core 30 in the central central portion S31 is not pulled to the worn article side, and On the other hand, it becomes easier to stand up. Since the outer edge 30E of the absorbent core 30 in the central central portion S31 rises, a wall that covers the side of the excretion opening is formed, and side leakage can be suppressed.
  • the outer edge 30E of the absorbent core 30 may be located inside the wing 3 in the width direction W. That is, the outer edge 30E of the absorbent core is separated from the inner edge of the wing (imaginary line FL1) and is located on the inner side in the width direction W than the inner edge of the wing. According to this configuration, the absorbent core 30 in the central region S3 is not folded back to the non-skin surface side together with the wings 3, and it becomes easier to stand up with respect to the worn article. Since the outer edge 30E of the absorbent core 30 in the central region S3 rises, a wall that covers the side of the excretion opening is formed, and side leakage can be suppressed.
  • the leak preventive wall 65 may be located outside the bent base point portion 71 in the width direction W. That is, the inner edge of the standing portion that constitutes the inner edge of the leak preventive wall 65 may be located outside the bent base point portion 71 in the width direction W.
  • the leak-proof wall extends in the width direction W from the folding base point portion 71 in a state in which the absorbent article is stretched until wrinkles of the leak-proof stretchable member are not formed. It just needs to be located outside. According to this configuration, the leak prevention wall that covers the side of the excretion opening is formed outside the bent base point portion 71 in the width direction W, and side leakage can be suppressed.
  • the body fluid diffuses outside the bending base point portion 71 in the width direction W, the body fluid is absorbed by the absorbent core outside the folding base point portion 71 in the width direction W, and side leakage is caused by the leak preventive wall. Can be suppressed.
  • the outer edge 30E of the absorbent core 30 in the central central portion S31 may be located outside the width fulcrum portion 67 in the width direction W.
  • the body fluid When the body fluid is not drawn into the absorbent core 30 promptly or when the absorbent capacity of the absorbent core 30 is exceeded, the body fluid remains on the skin sheet 10 and is transmitted to the outside in the width direction W.
  • the width fulcrum portion 67 which is a fulcrum of the rising portion of the leakproof wall, may be reached. This diffusion of body fluid is likely to occur in the central central portion S31 where body fluid is easily guided.
  • the outer edge 30E of the absorbent core 30 in the central central portion S31 is located outside the width fulcrum portion 67 in the width direction W, even if the body fluid reaches the width fulcrum portion 67, the reached body fluid is absorbed by the absorbent core 30. Can be absorbed and side leakage can be suppressed.
  • the outer edge 30E of the absorbent core 30 may be positioned outside the width fulcrum portion 67 in the width direction W in at least a part of the central central portion S31, but more preferably, the central central portion S31. It may be located outside the width fulcrum portion 67 in the width direction W in the entire front-rear direction.
  • the first constricted portion 91 may be arranged rearward of the central central portion S31.
  • a force that causes the absorbent article to twist, particularly in the rear region S2 acts.
  • the pair of first constricted portions 91 absorb the twist in the rear side region S2, and the twist is less likely to be transmitted to the central central portion S31. Therefore, it is possible to secure both the fit property with respect to the excretion opening in the central central portion S31 and the effect of suppressing side leakage.
  • the rear squeezing portion 83 may be provided on the rear side of the central central portion S31.
  • the rear squeezing unit 83 has an X shape in a plan view. It can be deformed by the X-shaped base point to absorb the twist, and can release the force in all directions along the extending portion.
  • the rear squeezing portion 83 also absorbs the twist in the rear side region S2 and makes it difficult for the twist to be transmitted to the central central portion S31. Therefore, it is possible to secure both the fit property with respect to the excretion opening in the central central portion S31 and the effect of suppressing side leakage.
  • the first constricted portion 91 may be located on the front side of the rear edge of the central area S3.
  • the inward force in the width direction W applied to the central region S3 can be divided by the first constricted portion 91, and the rear region S2 can be arranged along the buttocks.
  • the force from the rear side region S2 can be divided by the first constricted portion 91, and the force applied to the rear side region S2 is less likely to be applied to the central central portion S31, and the force in the width direction W of the absorbent core 30 in the central central portion S31 is reduced.
  • the length can be secured and side leakage can be suppressed.
  • the second constricted portion 92 may be arranged on the front side of the central central portion S31. Since the second constricted portion 92 is provided on the front side of the central central portion S31, the deformation base point of the absorbent core 30 is formed on the front side of the central central portion S31. In general, in the cross section along the front-rear direction L of the body, the front side of the excretory opening has a curved shape with a steeper slope than the rear side, and it is difficult for the absorbent core 30 to follow the body. However, the second constricted portion 92 forms a base point at which the absorbent core 30 is deformed, in front of the excretion opening, and the region in front of the excretion opening easily follows the body.
  • Absorption of the body fluid becomes higher in the region on the front side of the excretion opening, and as a result, less body fluid diffuses outside the excretion opening in the width direction W, and lateral leakage can be reduced. Further, the force from the front side region S1 can be divided by the second constricted portion 92, and the force applied to the front side region S1 becomes difficult to be applied to the central central portion S31, and the length of the absorbent core 30 in the widthwise direction W at the central central portion S31 can be reduced. It can be secured and side leakage can be suppressed.
  • the front squeezing portion 82 may be provided on the front side of the central central portion S31.
  • the front squeezing section 82 has an X shape in a plan view. It can be deformed by the X-shaped base point to absorb the twist, and can release the force in all directions along the extending portion.
  • the front squeezing portion 82 also absorbs the twist in the front side region S1, and the twist is less likely to be transmitted to the central central portion S31. Therefore, it is possible to secure both the fit property with respect to the excretion opening in the central central portion S31 and the effect of suppressing side leakage.

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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)

Abstract

L'invention concerne un article absorbant permettant d'assurer l'ajustement par rapport à une ouverture excrétoire d'une région prise en sandwich par des parties de points de base de pliage, et des fuites latérales dans une région centrale peuvent être éliminées. Un article absorbant (10) comprend : une région centrale (S3) qui fait face à l'ouverture excrétoire d'un utilisateur ; une région latérale postérieure (S2) qui est positionnée plus à l'arrière que dans la région centrale ; une région latérale antérieure (S1) qui est positionnée plus à l'avant que la région centrale ; une âme absorbante (30) qui est disposée au moins dans la région centrale ; et une feuille en contact avec la surface de la peau (10) qui est positionnée plus vers un côté de surface de la peau que l'âme absorbante. Une paire de parties de points de base de pliage (71) s'étend dans la direction avant-arrière de façon à prendre le centre en sandwich dans le sens de la largeur de l'article absorbant. La largeur maximale de l'âme absorbante dans la région centrale est supérieure à la largeur maximale de l'âme absorbante dans la région latérale antérieure. Les bords extérieurs de l'âme absorbante sont positionnés plus vers l'extérieur dans le sens de la largeur que les parties de points de base de pliage. La région centrale dispose d'une section centrale de centre (S31) comprenant le centre dans le sens avant-arrière de la région centrale et des sections d'extrémité centrales (S32) positionnées plus vers l'extérieur dans le sens avant-arrière que la section centrale du centre. La distance (G11) dans le sens de la largeur entre le bord extérieur de l'âme absorbante et la partie de points de base de pliage dans la section centrale de centre est plus longue que la distance (G12, G13) dans le sens de la largeur entre le bord extérieur de l'âme absorbante et la partie de points de base de pliage dans les sections d'extrémité centrales.
PCT/JP2020/003890 2019-02-04 2020-02-03 Article absorbant WO2020162386A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019-017737 2019-02-04
JP2019017737A JP7385359B2 (ja) 2019-02-04 2019-02-04 吸収性物品

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WO2020162386A1 true WO2020162386A1 (fr) 2020-08-13

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JP (1) JP7385359B2 (fr)
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010148708A (ja) * 2008-12-25 2010-07-08 Uni Charm Corp 薄型吸収性物品
JP2011000481A (ja) * 2010-10-05 2011-01-06 Uni Charm Corp 吸収性物品
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