WO2020241553A1 - 吸収性物品 - Google Patents

吸収性物品 Download PDF

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Publication number
WO2020241553A1
WO2020241553A1 PCT/JP2020/020506 JP2020020506W WO2020241553A1 WO 2020241553 A1 WO2020241553 A1 WO 2020241553A1 JP 2020020506 W JP2020020506 W JP 2020020506W WO 2020241553 A1 WO2020241553 A1 WO 2020241553A1
Authority
WO
WIPO (PCT)
Prior art keywords
region
absorbent article
longitudinal
width direction
article according
Prior art date
Application number
PCT/JP2020/020506
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
美奈 富田
拓也 幸田
貴史 白川
Original Assignee
花王株式会社
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 花王株式会社 filed Critical 花王株式会社
Priority to GB2116207.8A priority Critical patent/GB2597193B/en
Priority to CN202080039414.9A priority patent/CN113891699B/zh
Priority to DE112020002768.6T priority patent/DE112020002768T5/de
Publication of WO2020241553A1 publication Critical patent/WO2020241553A1/ja

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/493—Absorbent articles specially adapted to be worn around the waist, e.g. diapers adjustable by adding or removing material, e.g. umbilical cord arrangements
    • 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
    • A61F13/51—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 outer layers
    • 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
    • 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
    • A61F13/56—Supporting or fastening means
    • 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
    • A61F13/51—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 outer layers
    • A61F2013/51078—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 outer layers being embossed

Definitions

  • the present invention relates to an absorbent article.
  • Absorbent articles such as disposable diapers typically include an absorber containing an absorbent material such as a hydrophilic fiber or a water-absorbing polymer and a surface located closer to the wearer's skin than the absorber. It is provided with a sheet and a leak-proof sheet made of a resin film or the like arranged on the side farther from the wearer's skin than the absorber, and an exterior sheet is arranged on the outside of the leak-proof sheet as needed.
  • an absorbent material such as a hydrophilic fiber or a water-absorbing polymer
  • Patent Document 1 for the purpose of improving the visibility of the design arranged on the outside of the diaper, the design is printed on the outer surface of the target tape made of non-woven fabric, and the constituent fibers of the non-woven fabric are adhered to each other. It is described that the adhesive line is formed in a wavy shape extending in the width direction of the diaper.
  • Patent Document 2 describes a diaper in which an elastic film is arranged on the back side of the absorber between the top sheet and the back sheet for the purpose of improving the wearability on the back side of the wearer when changing the diaper. It is disclosed.
  • this elastic film at least one elastic layer is sandwiched between two non-elastic layers, and in the natural state of the diaper, a plurality of wrinkles extending in the longitudinal direction of the product reach the dorsal edge. It is also described in the same document that it is formed on the back sheet as described above.
  • the present invention includes an absorbent body including a liquid-permeable surface sheet, an absorber and a leak-proof sheet, and has a longitudinal direction corresponding to the front-rear direction of the wearer and a width direction orthogonal to the longitudinal direction. It relates to an absorbent article comprising a ventral region, an inseam region and a dorsal region along the longitudinal direction, in which the absorber is arranged from the ventral region to the dorsal region.
  • An exterior sheet is arranged on the non-skin facing surface side of the absorbent body.
  • the exterior sheet is formed with a longitudinal ridge groove shape having longitudinal ridges extending in the longitudinal direction and longitudinal grooves alternately.
  • the longitudinal ridge shape is formed in a region overlapping the absorber in the thickness direction in the inseam region.
  • FIG. 1 is a developed plan view schematically showing a skin-facing surface side (inner surface side) in an expanded and extended state in one embodiment of the absorbent article of the present invention.
  • FIG. 2 is a cross-sectional view taken along the line II of the absorbent article shown in FIG.
  • FIG. 3 is a developed plan view schematically showing the non-skin facing surface side (outer surface side) of the absorbent article shown in FIG. 1 in the expanded and extended state.
  • FIG. 4 is a cross-sectional view taken along line II-II of the absorbent article shown in FIG.
  • FIG. 5 is a developed plan view schematically showing a non-skin facing surface side (outer surface side) in the expanded and extended state in another embodiment of the absorbent article of the present invention.
  • FIG. 1 is a developed plan view schematically showing a skin-facing surface side (inner surface side) in an expanded and extended state in one embodiment of the absorbent article of the present invention.
  • FIG. 2 is a cross-sectional view taken along
  • FIG. 6 is a development plan view schematically showing a non-skin facing surface side (outer surface side) in the expanded and extended state in still another embodiment of the absorbent article of the present invention.
  • FIG. 7 is a developed plan view schematically showing a non-skin facing surface side (outer surface side) in the expanded and extended state in still another embodiment of the absorbent article of the present invention.
  • FIG. 8 is a developed plan view schematically showing the non-skin facing surface side (outer surface side) in the expanded and extended state in still another embodiment of the absorbent article of the present invention.
  • FIG. 9 is a development plan view schematically showing a non-skin facing surface side (outer surface side) in the expanded and extended state in still another embodiment of the absorbent article of the present invention.
  • FIG. 10 is a perspective view schematically showing a wearing state of the absorbent article shown in FIG.
  • FIG. 11A is an enlarged view of a main part of the cross section of the absorbent article shown in FIG. 2
  • FIG. 11B is an enlarged view of the main part of the absorbent article shown in FIG. 5 on the non-skin facing surface side. is there.
  • the humidity inside the diaper may increase due to the sweat of the wearer and the water vapor generated from the excrement liquid absorbed and retained in the wearing state.
  • An increase in humidity may cause an unpleasant wearing feeling and cause skin irritation.
  • the leak-proof sheet is made of a liquid-impermeable and moisture-permeable resin film. Is generally used. In this case, depending on the surrounding environment, the water vapor released to the outside through the leak-proof sheet may condense on the non-skin facing surface such as a diaper.
  • Moisture produced by condensation does not seep out of the absorbent article, but it moistens clothing located in the abdomen and underbody and induces urine leakage in the wearer due to the perception of moisture in the clothing. There is a risk of causing various discomforts such as increasing anxiety about urine leakage. In addition to this, the moisture generated by condensation may give the user the misconception that a leak has occurred from the absorbent article. The suppression of such dew condensation has not been studied in the techniques described in the above-mentioned patent documents.
  • the present invention relates to an absorbent article that suppresses discomfort and misidentification of leakage due to water vapor released to the outside of the absorbent article and improves comfort when worn.
  • FIG. 1 shows the configuration of the diaper 1 as viewed from the skin-facing surface side.
  • the diaper 1 shown in the figure corresponds to the front-back direction of the wearer in its unfolded and extended state, and corresponds to the wearer's belly. It has a longitudinal direction X extending from the side to the dorsal side via the crotch portion and a width direction Y orthogonal to the longitudinal direction X.
  • the diaper 1 has an inseam region M located between the ventral region F and the dorsal region R arranged on the ventral side of the wearer and the ventral region F and the dorsal region R when worn. And have. Each region is a region obtained by dividing the total length of the diaper 1 in the longitudinal direction X into three equal parts, and extends continuously in the front-rear direction of the wearer.
  • the inseam region M has an excretion portion facing portion (not shown) that is arranged to face the excretion portion of the wearer when the diaper 1 is worn.
  • the diaper 1 has a liquid-permeable surface sheet 2 that forms a skin-facing surface and a liquid-impermeable (including water-repellent) leak-proof sheet that forms a non-skin-facing surface. It has 3 and.
  • An absorber 4 is arranged between the surface sheet 2 and the leak-proof sheet 3, and these members constitute the absorbent body 1A.
  • the surface sheet 2 and the leak-proof sheet 3 each have a size larger than that of the absorber 4, and extend outward from the outer peripheral edge of the absorber 4.
  • the surface sheet 2 and the leak-proof sheet 3 extend outward in the width direction Y from both side edges of the absorber 4 along the longitudinal direction X.
  • the longitudinal end edges of the surface sheet 2 and the leak-proof sheet 3 in the present embodiment substantially coincide with the longitudinal end edges of the diaper 1.
  • the diaper 1 includes a liquid-retaining absorber 4.
  • the absorber 4 shown in the figure has a substantially rectangular shape, and is arranged so that the longitudinal direction thereof and the longitudinal direction X of the diaper coincide with each other.
  • the absorber 4 is arranged from the ventral region F to the dorsal region R.
  • the absorber 4 is formed by coating an absorbent core 41 having an absorbing performance on a liquid-permeable core wrap sheet 42.
  • the absorber 4 in the present embodiment has a portion confined in the width direction Y in the inseam region M.
  • the longitudinal edge of the absorber 4 is located inward of the longitudinal edge of the diaper 1.
  • the "unfolded and stretched state” of the diaper 1 means that the diaper 1 is in the unfolded state, and the elastic members of each part of the unfolded diaper 1 are stretched to eliminate the influence of the elastic members. It refers to the state in which it is expanded to the same size as when it is expanded in a flat state.
  • the "skin facing surface” is a surface facing the wearer's skin when wearing the diaper when focusing on the diaper or its constituent members (for example, an absorber), and the “non-skin facing surface” is the diaper. This is the surface that faces the wearer's skin when worn.
  • the skin-facing surface is the surface relatively close to the wearer's skin
  • the non-skin-facing surface is the surface relatively far from the wearer's skin.
  • FIG. 3 shows the configuration of the diaper 1 as viewed from the non-skin facing surface side.
  • the leak-proof cuff 6 and the elastic members 62, 85, etc., which will be described later, are not shown in the figure, they are only shown as such for convenience of explanation, and are actually the same as the diaper 1 shown in FIG. It is composed.
  • an exterior sheet 5 is arranged on the non-skin facing surface side of the absorbent main body 1A.
  • the exterior sheet 5 is a member that forms the outer surface of the diaper 1 that can be visually recognized from the outside when the diaper 1 is worn.
  • the exterior sheet 5 shown in the figure is arranged on the non-skin facing surface of the absorbent main body 1A from the ventral region F to the dorsal region R in the longitudinal direction X. Further, the exterior sheet 5 forms the outer shape of the diaper 1 in the expanded and extended state, and the peripheral edge of the exterior sheet 5 forms the contour lines of the ventral region F, the inseam region M, and the dorsal region R, respectively. There is.
  • the exterior sheet 5 has a plurality of ridges 51 that protrude toward the non-skin facing surface side and extend in one direction, and ridges 52 that are alternately located between the ridges 51.
  • a groove shape 5A is formed.
  • the exterior sheet 5 is joined to the leak-proof sheet 3 via an adhesive 53 at a portion where the groove 52 is formed.
  • the adhesive 53 extends in the longitudinal direction X and forms a joining region intermittently arranged in the width direction Y. That is, the exterior sheet 5 and the leak-proof sheet 3 are intermittently joined in the width direction Y in a plurality of joining regions extending in the longitudinal direction X.
  • the ridge portion 51 shown in the figure is formed so as to project so as to be separated from the leak-proof sheet 3, and the region defined by the exterior sheet 5 and the leak-proof sheet 3 in the ridge portion 51 is hollow. ing.
  • the leak-proof sheet 3 is substantially flat.
  • the ridge groove shape 5A having the ridge portion 51 and the groove portion 52 is formed at least in a region overlapping the absorber 4 in the thickness direction Z in the inseam region M.
  • the exterior sheet 5 may be formed of a single layer, and instead, a plurality of sheets may be laminated.
  • the exterior sheet 5 is composed of two non-woven fabrics that are intermittently joined at a plurality of locations in the width direction Y of the diaper 1, and one of the two non-woven fabrics is attached to the other non-woven fabric.
  • the ridge portion 51 may be formed so as to protrude in the direction away from the other non-woven fabric.
  • the ridge portion 51 preferably has a hollow region defined by one non-woven fabric and the other non-woven fabric.
  • the two non-woven fabrics may independently have either a single-layer structure or a laminated structure of two or more layers.
  • the ridges 51 are provided inside the ridges instead of the hollow portions formed between the exterior sheet 5 and the leak-proof sheet 3 described above or between the two non-woven fabrics constituting the exterior sheet 5. It may have a low density portion having a fiber density smaller than that of the surface portion of the ridge portion.
  • a plurality of ridges 51 and grooves 52 formed in the exterior sheet 5 are formed in a straight line so as to extend in the longitudinal direction X, and alternately in the width direction Y. They are lined up.
  • the ridges 51 and the grooves 52 are formed so as to be parallel to each other.
  • the ridge groove shape 5A having the ridge portion 51 and the groove portion 52 is formed from the ventral region F to the dorsal region R so as to include a region overlapping the absorber 4 in the inseam region M in the thickness direction Z. It is formed so as to reach both ends in the longitudinal direction of the diaper 1.
  • the ridge shape 5A is formed not only in the region overlapping the absorber 4 in the thickness direction Z but also on the outer side in the width direction Y of both side edges along the longitudinal direction X of the absorber 4.
  • the ridge portion 51 extending in the longitudinal direction X of the diaper 1 is also referred to as a "longitudinal ridge portion 51”
  • the groove portion 52 extending in the longitudinal direction X of the diaper 1 is also referred to as a "longitudinal groove portion 52" of the diaper 1.
  • the ridge groove shape 5A formed so as to extend in the longitudinal direction X is also referred to as "longitudinal ridge groove shape 5A". It is preferable that neither the longitudinal ridge portion 51 nor the longitudinal groove portion 52 is formed by compaction treatment such as embossing. The method of forming the longitudinal ridge portion 51 and the longitudinal groove portion 52 on the exterior sheet 5 will be described later.
  • a pair of leakage-proof cuffs 6 and 6 may be provided on both sides of the diaper 1 on the skin-facing surface along the longitudinal direction X.
  • the leak-proof cuff 6 is composed of a water-repellent and breathable leak-proof cuff forming sheet 61.
  • One or more thread-like elastic members 62 for forming a leak-proof cuff are arranged in the vicinity of the free end of each leak-proof cuff 6 in an extended state in the longitudinal direction X.
  • the leak-proof cuff 6 stands up at least in the inseam region M when the elastic member 62 arranged in the extended state contracts when the diaper 1 is worn, so that excrement such as urine flows out in the width direction Y. To prevent.
  • the exterior sheet 5 extends outward in the width direction Y from both side edges along the longitudinal direction X of the absorbent body 1A, and constitutes a leak-proof cuff 6.
  • a side flap portion S is formed together with the forming sheet 61.
  • the side flap portion S has a pair of ventral side flap portions Sf and Sf formed in the ventral region F and a pair of dorsal side flap portions Sr and Sr formed in the dorsal region R.
  • the absorbent body 1A has the width of the minimum width portion of the inseam region M and extends over the entire longitudinal direction X of the diaper 1, and the ventral side flap portion Sf and the dorsal side flap portion Sr are the abdomen.
  • FIG. 1 shows a boundary line between the absorbent main body 1A in the diaper 1 and the ventral side flap portion Sf or the dorsal side flap portion Sr as a alternate long and short dash line.
  • the side flap portion S is not limited to the one formed of the exterior sheet 5 and the leak-proof cuff forming sheet 61.
  • it may be configured to further include members such as a surface sheet 2 and a leak-proof sheet 3 that extend outward in the width direction Y from both side edges of the absorber 4. It is preferable that the members constituting the side flap portion S are joined to each other by known joining means such as an adhesive, a heat seal, and an ultrasonic seal at the extending portions from both side edges of the absorber 4.
  • each fastening tape 7 is arranged so as to extend from both side edges in the width direction Y at each dorsal side flap portion. As shown in FIG. 4, one end of each fastening tape 7 is fixed between the exterior sheet 5 and the leak-proof cuff forming sheet 61.
  • each side flap portion S on the ventral side and the dorsal side has a ventilation portion 1T in which the constituent members of the side flap portion S are smaller than the other portions of the side flap portion S. Is preferably formed.
  • the ventilation portion 1T in the dorsal side flap portion Sr is a portion located outside the width direction Y of the absorbent body 1A and inside the width direction Y of the fastening tape 7, and is also ventral.
  • the ventilation portion 1T in the side flap portion Sf is formed in substantially the entire area of the ventral side flap portion Sf.
  • the ventilation portion 1T in the present embodiment is a portion of the side flap portion S composed of the exterior sheet 5 and the leakage-proof cuff forming sheet 61, and an adhesive or the like is used between these sheets. Not joined.
  • the non-skin facing surface of the ventral region F of the diaper 1 is provided with a fastening region 7A to which the fastening portion 71 included in the fastening tape 7 can be detachably fastened.
  • a fastening region 7A an appropriate material is selected according to the material of the fastening portion 71 included in the fastening tape 7.
  • a fiber sheet that can engage with the male material for example, a knitted fabric or a non-woven fabric, may be used as the female material of the mechanical fastener as the fastening region 7A. it can.
  • the fastening portion 71 is an adhesive, for example, a smooth film made of synthetic resin can be used as the fastening region 7A.
  • a smooth film made of synthetic resin can be used as the fastening region 7A.
  • a plurality of leg elastic members 85 for forming leg gathers are arranged in an extended state along the longitudinal direction X on each of both side portions of the diaper 1 along the longitudinal direction X, and the leg elasticity is formed.
  • Leg gathers can be formed by the contraction of the member 85.
  • the elastic member is not present in each longitudinal end region in the ventral region F and the dorsal region R of the diaper 1, but as long as the effect of the present invention is exhibited, for example, an elastic member can be used. It may be further arranged in the extended state in the width direction Y so that the waist gather can be formed by the contraction of the elastic member.
  • the surface sheet 2 the leak-proof sheet 3, and the absorber 4, those conventionally used for absorbent articles can be used without particular limitation.
  • the surface sheet 2 for example, a liquid-permeable non-woven fabric, a perforated film, or the like can be used.
  • the absorbent body 4 as the absorbent core 41, an aggregate of hydrophilic fibers such as wood pulp and a hydrophilized synthetic fiber, or an aggregate in which a water-absorbing polymer is retained can be used.
  • the core wrap sheet 42 the same one as the surface sheet 2 can be used.
  • the leak-proof cuff forming sheet 61 a water-repellent non-woven fabric can be used.
  • the exterior sheet 5 it is preferable to use a non-stretchable sheet that does not have elasticity.
  • the exterior sheet 5 for example, non-woven fabrics produced by various manufacturing methods can be used, and for example, spunbonded non-woven fabrics, air-through non-woven fabrics, spunlace non-woven fabrics, heat roll non-woven fabrics, melt blown non-woven fabrics, laminated non-woven fabrics thereof and the like can be used.
  • the exterior sheet 5 may be composed of one sheet, or may be composed of a laminated body of a plurality of sheets instead.
  • an air-through non-woven fabric as the exterior sheet 5 from the viewpoint of increasing the breathability of the diaper to improve the comfort of the wearer and improving the forming efficiency of the ridge shape 5A, and the non-woven fabric is a single layer. It is also preferable to use in.
  • the ridged groove shape 5A having the above-described form is, for example, a sheet to which a tension higher than that of the one sheet is applied after applying a strip of adhesive to one surface of the sheet to which the tension is applied. Is laminated on the adhesive-coated surface of one of the sheets to form a bonded sheet, and then the tension applied to the bonded sheet is made lower than the tension applied to the other sheet. be able to.
  • the leak-proof sheet 3 extends in the transport direction with respect to one surface of the long strip-shaped leak-proof sheet 3.
  • a plurality of strips of the adhesive are applied so as to extend in the direction along the transport direction of the leak-proof sheet 3. That is, on the leak-proof sheet 3, the coated portion (joining region) to which the adhesive is attached and the non-coated portion to which the adhesive is not adhered intersect with the transport direction of the leak-proof sheet 3, preferably.
  • the leak-proof sheet 3 is formed alternately in a direction orthogonal to the transport direction.
  • the leak-proof sheet 3 coated with the adhesive and the long strip-shaped exterior sheet 5 are bonded together with tension applied in the same direction as the transport direction of the leak-proof sheet 3.
  • the tension applied to the exterior sheet 5 is in the same direction as the transport direction of the leak-proof sheet 3 and is higher than the tension during transport of the leak-proof sheet 3 (hereinafter, this state is referred to as "high tension state”. Also called.). Since the exterior sheet 5 in the high-tensile state extends in the transport direction as compared with the exterior sheet 5 to which no tension is applied, the exterior sheet 5 is bonded to the leak-proof sheet 3 in a state where the width of the exterior sheet 5 is reduced. Be done.
  • the tension applied to the bonded sheets is set to be the tension at the time of transporting the leak-proof sheet 3, and the sheet is transported to the downstream process. Since the tension applied to the exterior sheet 5 after the sheets are bonded to each other is lower than the tension applied to the exterior sheet 5 before the sheets are bonded to each other, the high tension state of the exterior sheet 5 is released. To. As a result, the width of the exterior sheet 5 is restored so as to widen in the width direction Y, and the exterior sheet 5 located in the non-applied portion projects so as to be separated from the leak-proof sheet 3 along the adhesive application direction.
  • the ridge portion 51 extends.
  • the exterior sheet 5 located at the coating portion since the exterior sheet 5 located at the coating portion is fixed without being separated from the leak-proof sheet 3, the exterior sheet 5 located at the coating portion becomes a groove portion 52 extending along the coating direction of the adhesive. In this way, the ridge groove shape 5A extending in one direction is formed on the exterior sheet 5.
  • the exterior is provided so that the longitudinal direction of the target diaper 1 and the extending direction of the ridge portion 51 and the groove portion 52 match.
  • the bonded sheet including the sheet 5 may be cut to form a diaper.
  • the ridge groove shape 5A is formed on the exterior sheet 5 composed of a plurality of sheets, for example, an adhesive is applied to the inner layer side sheet constituting the skin-facing surface side of the diaper 1 in the exterior sheet 5 in a band shape. A plurality of strips are applied, and then the inner layer side sheet and the other sheet in a high tension state are attached. After that, the high-tensile state of the other sheet may be released, and the ridge shape 5A may be formed on the other sheet.
  • the absorbent article of the present invention having the above structure, since the longitudinal ridge groove shape composed of the ridges and grooves extending in the longitudinal direction is formed in the inseam region, the ridge shape is not formed. Compared with the absorbent article, it is possible to facilitate the movement of water vapor generated from the excrement liquid such as urine absorbed and held by the absorber from the inseam region to the ventral region and the dorsal region. As a result, it is possible to suppress discomfort and misidentification of leakage due to water vapor released to the outside of the absorbent article.
  • the longitudinal ridge groove shape 5A having the longitudinal ridge portion 51 and the longitudinal groove portion 52 is an absorber in the inseam region M. It is preferable that the diaper is formed from the ventral region F to the dorsal region R so as to include a region overlapping with 4 in the thickness direction Z, and is formed so as to reach both ends in the longitudinal direction of the diaper 1. More preferred. Further, it is more preferable that the longitudinal ridge shape 5A includes a region overlapping the absorber 4 located in each of the ventral region F and the dorsal region R in the thickness direction Z.
  • the directional ridge groove shape 5B is formed.
  • the ridge groove shape 5B in the width direction may be formed in a corrugated shape in a plan view of the diaper 1, or may be formed in a linear shape extending in the width direction.
  • the width direction ridge shape 5B is arranged so as to extend over the central region and both side regions of the width direction Y of the absorbent article 1, and preferably the region and thickness in which the longitudinal ridge shape 5A is formed. It overlaps in direction Z.
  • the formation region of the ridge shape 5B in the width direction and the fastening region 7A described above may overlap each other or may be different from each other.
  • a water vapor flow path extending in the width direction Y of the diaper 1 is further formed, so that the water vapor moved from the inseam region M to the ventral region F, and the ventral region F and Water vapor generated from the vicinity can be diffused and released in each direction in the abdominal direction and the direction along the waist circumference. As a result, the misidentification of leaks, especially in the abdomen, can be reduced.
  • the width direction ridge groove shape 5B having the width direction ridge portions 56 and the width direction groove portions 57 alternately is the non-skin of the exterior sheet 5 in the ventral region F and the dorsal region R. It is formed on the opposite surface side respectively.
  • Each of the ridge groove shapes 5B in the width direction shown in the figure is formed into a corrugated shape in a plan view of the diaper 1 as in the embodiment shown in FIG. 5 described above.
  • the width direction ridge shape 5B is arranged so as to extend over the central region and both side regions of the width direction Y of the absorbent article 1, and preferably the region and thickness in which the longitudinal ridge shape 5A is formed. They overlap in direction Z, respectively.
  • the width direction ridge groove shape 5B formed in the dorsal side region R has the formation region of the width direction ridge groove shape 5B and the arrangement of the fastening tape 7 when viewed along the width direction Y. The position overlaps.
  • the widthwise ridge groove shape 5B formed in the dorsal region R may be formed inward in the longitudinal direction from the arrangement position of the fastening tape 7 in the plan view of the diaper 1.
  • the inseam region M to the ventral region F and the dorsal side are formed.
  • the water vapor that has moved to the region R and the water vapor generated from the ventral region F, the dorsal region R, and the vicinity thereof can be diffused and released in each of the front-back direction and the lumbar peripheral direction of the wearer. As a result, it is possible to reduce misidentification of leaks, especially in both the abdomen and the back.
  • a second exterior member separate from the exterior sheet is arranged on the non-skin facing surface side of the exterior sheet 5, and the widthwise ridge shape 5B is formed on the second exterior member.
  • the second exterior member shown in the figure is a landing tape 7B that constitutes a fastening region 7A of the fastening tape 7.
  • the landing tape 7B is arranged on the non-skin facing surface side of the ventral region F as a sheet separate from the exterior sheet 5.
  • the forming region of the ridged groove shape 5B in the width direction and the fastening region 7A described above overlap each other.
  • the landing tape 7B has a rectangular shape in a plan view, and is arranged so that the longitudinal direction of the landing tape 7B, the width direction Y of the diaper 1 and the extending direction of the width direction ridge groove shape 5B are aligned with each other. ing.
  • the landing tape 7B is bonded to at least the central region in the width direction Y of the non-skin facing surface in the ventral region F by a known bonding means such as an adhesive, a heat seal, or an ultrasonic seal.
  • the landing tape 7B in the present embodiment may form, for example, a ridged groove shape 5B in the width direction, and then the landing tape 7B may be joined to the exterior sheet 5.
  • the landing tape 7B is arranged so as to overlap the longitudinal ridge shape 5A formed in the ventral region F in the thickness direction Z.
  • a second exterior member (landing tape 7B) having a ridged groove shape 5B in the width direction is arranged on the non-skin facing surface side of the exterior sheet 5 in the ventral region F.
  • the widthwise ridge groove shape 5B is further arranged on the non-skin facing surface side of the exterior sheet 5 in the dorsal region R.
  • the widthwise ridge groove shape 5B formed in the dorsal region R is formed in a portion of the exterior sheet 5 where the second exterior member is not arranged.
  • the widthwise ridge groove shape 5B formed in the dorsal region R is directly formed on the exterior sheet 5.
  • the water vapor generated from the excrement liquid absorbed in the inseam region M can be diffused and released in multiple directions, and the water vapor released to the outside of the diaper by the second exterior member can be released. It is possible to prevent re-flowing into the diaper.
  • the width direction ridge groove shape 5B is formed in the portion where the second exterior member is not arranged, so that the sweat evaporation efficiency is increased and the stuffiness during wearing is reduced. can do. As a result, the comfort when worn can be further enhanced.
  • the widthwise ridge groove shape 5B formed in the ventral region F and the dorsal region R extends to the ventral region F and the dorsal region R, respectively. It is also preferable that the shape is formed so as to overlap the ridge groove shape 5A in the thickness direction Z.
  • a plurality of flap elastic members 87 extending in the width direction Y are arranged on the dorsal side flap portions Sr and Sr.
  • the flap elastic member 87 is arranged from the ventilation portion 1T in the dorsal side flap portion Sr to the leak-proof sheet 3 in the absorbent main body 1A, and the flap elastic members 87 extend substantially in parallel with each other.
  • a second exterior member (landing tape 7B) on which the width direction ridge shape 5B is formed is arranged in the ventral region F, and the width direction ridge groove R is arranged in the dorsal region R.
  • the widthwise ridge groove shape 5B may be formed in both the ventral region F and the dorsal region R.
  • FIG. 10 schematically shows the wearing state of the diaper 1 of the embodiment shown in FIG.
  • the ventral side flap portion Sf and the dorsal side flap portion Sr are arranged so as to overlap each other. Specifically, fastening with the ventral side flap portion Sf arranged on the skin facing surface side and the dorsal side flap portion Sr arranged so as to cover the non-skin facing surface side of the ventral side flap portion Sf.
  • the tape 7 is anchored to the landing tape 7B as the anchoring region 7A, and the wearing state is maintained.
  • the ventral side flap portion Sf and the dorsal side flap portion Sr are overlapped in this order as the arrangement when viewed from the wearer's body surface toward the outside.
  • a highly breathable region 1V having high air permeability exists in a region where the ventral side flap portion Sf and the dorsal side flap portion Sr overlap each other. Further, it is also preferable that the high ventilation region 1V is formed so as to be located in the extending direction of the ridge groove shape 5B in the width direction.
  • the high ventilation region 1V refers to a region where at least the leak-proof sheet 3 is not arranged when the diaper 1 is worn. With such a configuration, water vapor diffused along the waist circumference through the ridged groove shape 5B in the width direction is easily released from the high ventilation region 1V, so that the stuffiness in the diaper is further reduced. be able to.
  • the flap elastic member 87 extending in the width direction Y is preferably arranged so as to overlap the high ventilation region 1V formed by the overlap of the ventral and dorsal side flap portions Sf and Sr.
  • the high ventilation region 1V easily expands and contracts together with the elastic member 87 in accordance with the change in the posture of the wearer, so that the high ventilation region 1V easily expands and contracts along the waist circumference via the ridge groove shape 5B in the width direction. Since the water vapor diffused in the direction is more easily released from the high ventilation region 1V, the stuffiness in the diaper can be further reduced.
  • the member formed by overlapping the ventral and dorsal side flap portions Sf and Sr is a constituent member of another portion constituting the side flap portion S.
  • the number is preferably less than the number, and in particular, it is more preferably formed by overlapping the ventilation portions 1T in the ventral and dorsal side flap portions Sf and Sr, respectively.
  • the cross-sectional area of the width direction groove portion 57 along the longitudinal direction X is larger than the cross-sectional area of the longitudinal groove portion 52 along the width direction Y.
  • the cross-sectional area of the widthwise groove 57 along the longitudinal direction X is preferably 0.5 mm 2 or more, more preferably 0.8 mm 2 or more, and preferably 10 mm 2 or less, more preferably 5 mm 2. It is as follows.
  • the cross-sectional area of the longitudinal groove 52 along the width direction Y is preferably 0.1 mm 2 or more, more preferably 0.3 mm 2 or more, and preferably 5 mm 2 or less, more preferably 2 mm 2 or less. Is.
  • each groove 52, 57 can be measured by, for example, the following method.
  • the exterior sheet 5 is cut with a sharp razor along the direction orthogonal to the extending direction of the groove to be measured and cut. Get a face.
  • This cut surface is included in the field of view where two adjacent ridges and a groove arranged between the ridges are present using a microscope (for example, a digital microscope VHX-1000 manufactured by KEYENCE CORPORATION). As described above, the observation is carried out in a state of 10 to 100 times magnification and no load.
  • the contours of the non-skin facing surfaces of the ridges and grooves and the tops of the ridges on the cut surface are identified, and the virtual straight line connecting the tops of the ridges and the ridges and grooves
  • the area of the area surrounded by the contour of the non-skin facing surface is measured. This measurement is performed for five or more grooves, and the arithmetic mean value of the area is taken as the cross-sectional area of the groove to be measured.
  • the second exterior member is more than the constituent material of the exterior sheet 5 from the viewpoint of effectively preventing the water vapor released to the outside of the diaper from re-inflowing into the diaper.
  • High ventilation resistance is preferable.
  • the ventilation resistance of the second exterior member is preferably 0.005 kPa ⁇ s / m or more, more preferably 0.01 kPa ⁇ s / m or more, and preferably 0.2 kPa ⁇ s / m or less, 0. .1 kPa ⁇ s / m or less is more preferable.
  • the ventilation resistance of the exterior sheet 5 is preferably 0.001 kPa ⁇ s / m or more, more preferably 0.003 kPa ⁇ s / m or more, and preferably 0.1 kPa ⁇ s / m or less, preferably 0.05 kPa ⁇ s / m or less.
  • the ventilation resistance can be measured using, for example, AUTOMATIC AIR-PERMEABILITY TESTER KES-F8-AP1 (breathability tester) manufactured by Katou Tech.
  • a large value of the ventilation resistance obtained by the above-mentioned measurement method means that it takes a long time for air to pass through, which means that the material to be measured has low air permeability.
  • the second exterior member is the landing tape 7B
  • a material that can fasten the fastening tape 7 as the constituent material of the landing tape 7B.
  • a fiber sheet such as various non-woven fabrics similar to the exterior sheet 5 or , Resin film and the like can be used. From the viewpoint of improving air permeability, it is preferable to use a fiber sheet such as various non-woven fabrics similar to the exterior sheet 5.
  • the width direction groove portion 57 in the width direction ridge groove shape 5B is preferably formed by compaction of the constituent material in which the width direction ridge groove shape 5B is formed. Since the groove portion 57 in the width direction is compacted, a portion having a high density and a portion having a low density of the constituent material are formed at regular intervals, so that the efficiency of releasing water vapor to the outside of the diaper is maintained and the portion is outside the diaper. It is possible to prevent the released water vapor from re-inflowing into the diaper, and as a result, the comfort of the wearer can be enhanced.
  • the width direction groove portion 57 is formed by consolidation, the width direction ridge portion 56 located between the width direction groove portions 57 is not compacted or the degree of consolidation is weaker than that of the width direction groove portion 57. ing.
  • the constituent member or constituent material to be formed is embossed or a mold having a shape complementary to the desired shaping shape. It can be performed by pressing it against a member or the like to shape it.
  • the diaper is distributed to the market, when a plurality of diapers 1 having a second exterior member having a ridged groove shape 5B in the width direction formed in the ventral region F are adjacent to each other and accommodated in a compressed state, The second exterior member of one diaper 1 and the exterior sheet of the other diaper 1 are in contact with each other and pressed. Thereby, in the process of market distribution, a shape complementary to the width direction ridge groove shape 5B formed on the second exterior member can be formed in the dorsal region R of the other diaper 1.
  • the number of ridges 51 and 52 constituting the ridge shape 5A are independent of each other. It is preferably 8 pieces / 10 cm or more, more preferably 16 pieces / 10 cm or more, more preferably 100 pieces / 10 cm or less, and further preferably 80 pieces / 10 cm or less.
  • the number of the ridges 51 and the grooves 52 can be appropriately adjusted, for example, by changing the coating width of the adhesive linearly applied to the exterior sheet 5 and the spacing between the adhesive rows.
  • the number of each of the ridges 51 and the grooves 52 is counted at an arbitrary position where the ridges 51 and the grooves 52 are present in a virtual straight line extending in a direction orthogonal to the extending direction of the ridges 51 and the grooves 52 in a sheet plan view.
  • the number of ridges that intersect the virtual straight line is defined as the number of ridges 51
  • the number of grooves that intersect the virtual straight line is defined as the number of grooves 52.
  • each number of groove portions 52 is obtained. If the number of ridges 51 and 52 is different depending on the position where the virtual straight line is drawn, the largest of these numbers is the number of ridges 51 existing per 10 cm, or the groove 52 existing per 10 cm. It is defined as the number of each.
  • the height H1 of the longitudinal ridge 51 is preferably 0.2 mm or more, more preferably 0.4 mm or more, and preferably 3 mm or less, further preferably. Is 2 mm or less.
  • the height H1 of the ridge 51 is the distance between the surface of the exterior sheet 5 forming the groove 52 and the upper surface of the top of the ridge 51.
  • the height H1 of the ridge 51 can be set, for example, by changing the coating width of the adhesive linearly applied to the exterior sheet 5 and the interval between the adhesive rows, changing the constituent material of the exterior sheet 5, or increasing the tension. It can be appropriately adjusted by changing the tension of the exterior sheet 5 applied in the state.
  • the total width W1 (see FIG. 11A) of the longitudinal ridge 51 along the width direction Y is preferably 0.2 mm or more, more preferably 0.4 mm or more, and preferably 0.4 mm or more. It is 12 mm or less, more preferably 6 mm or less. It is preferable that the total width W2 (see FIG. 11A) along the width direction Y of the longitudinal groove portion 52 is substantially nonexistent (that is, the total width W2 is zero), more preferably more than 0 mm, still more preferably. Is 0.2 mm or more, preferably 5 mm or less, and more preferably 2 mm or less.
  • the overall widths W1 and W2 can be appropriately adjusted by, for example, changing the width of the adhesive applied to the exterior sheet 5 and the spacing between the adhesive rows.
  • the height H1, total width W1 and total width W2 described above can be measured by, for example, the following methods. That is, the sample in which the ridges 51 and the grooves 52 are formed is cut with a sharp razor along the direction orthogonal to the extending direction of the ridges 51 and the grooves 52, and the cut surface is observed with the microscope described above. The shortest distance between the non-skin facing surface forming the groove 52 and the upper surface (non-skin facing surface) of the top of the ridge 51 is measured, and the obtained value is defined as the height H1 of the ridge.
  • the boundary point between the ridge portion 51 and the groove portion 52 is specified from the contour line on the non-skin facing surface of the ridge portion 51 and the groove portion 52, and the shortest distance between the boundary points measured so as to sandwich the ridge portion 51. (See FIG. 11A) is defined as the total width W1, and the shortest distance between the boundary points measured so as to sandwich the groove 52 (see FIG. 11A) is defined as the total width W2.
  • the boundary point refers to a boundary point that changes from a convex shape observed on a cut surface to a straight line extending along the contour line of the groove, and a boundary point that changes from the straight line to a convex shape.
  • the inflection point can be obtained from the tangent line drawn with respect to the contour line of the ridge portion 51 and the groove portion 52. If the boundary point cannot be specified, between the boundary points measured with the intersection of the virtual straight line connecting each midpoint at the height H1 of each ridge 51 and the contour line on the non-skin facing surface of the ridge 51 as the boundary point. The shortest distance is the total width W1, and the total width W2 is zero.
  • the width direction ridge portion 56 and the width direction groove portion 57 constituting the width direction ridge groove shape 5B
  • the number of each of the above is preferably 5/10 cm or more, more preferably 10/10 cm or more, and more preferably 50/10 cm or less, and 30/10 cm or less. The following is more preferable.
  • the number of each of the width direction ridges 56 and the width direction groove 57 can be adjusted, for example, by appropriately changing the processing dimensions in the shaping of the width direction ridge shape.
  • the number of each of the width direction ridges 56 and the width direction groove 57 is counted when a virtual straight line extending in a direction orthogonal to the extending direction of the width direction ridge 56 and the width direction groove 57 is drawn in the sheet plan view.
  • the number of ridges that intersect the virtual straight line is defined as the number of ridges 56 in the width direction
  • the number of grooves that intersect the virtual straight line is defined as the number of ridges 57 in the width direction.
  • the number of each groove portion 57 in the width direction is obtained.
  • the largest of these numbers is the number of the width direction ridges 56 existing per 10 cm, or 10 cm. It is defined as the number of groove portions 57 in the width direction existing per hit.
  • the total width W3 (see FIG. 11B) along the longitudinal direction X of the width direction ridge 56 is preferably 1 mm or more, more preferably 2 mm or more, and preferably 10 mm or less, still more preferable. Is 5 mm or less. It is preferable that the total width W4 (see FIG. 11B) along the longitudinal direction X of the width direction groove portion 57 is substantially absent (that is, the total width W4 is zero), more preferably more than 0 mm, still more preferably. Is 0.5 mm or more, preferably 3 mm or less, and more preferably 1.5 mm or less.
  • the total widths W3 and W4 can be adjusted, for example, by appropriately changing the processing dimensions in the shaping of the ridged groove shape in the width direction.
  • the total widths W3 and W4 are the minimum lengths at the time of measurement.
  • the above-mentioned total width W3 and total width W4 can be measured by, for example, the following method. That is, it is cut with a sharp razor along the direction orthogonal to the extending direction of the width direction ridge portion 56 and the width direction groove portion 57, and the cut surface is observed with the microscope described above. The shortest distance between the non-skin facing surface forming the width direction groove 57 and the upper surface (non-skin facing surface) of the top of the width direction ridge 56 is measured, and the obtained value is used as the height of the width direction ridge 56. Sato (not shown).
  • the boundary point between the width direction ridge portion 56 and the width direction groove portion 57 is specified from the contour lines on the non-skin facing surfaces of the width direction ridge portion 56 and the width direction groove portion 57, and the width direction ridge portion 56 is specified.
  • the shortest distance between the boundary points measured so as to sandwich the above is the total width W3
  • the shortest distance between the boundary points measured so as to sandwich the groove portion 57 in the width direction is set.
  • the total width is W4.
  • the boundary point can be specified in the same manner as the method described above.
  • the boundary point When the boundary point was unclear, the intersection of the virtual straight line connecting each midpoint at the height of each width direction ridge 56 and the contour line on the non-skin facing surface of the width direction groove 57 was measured as the boundary point.
  • the shortest distance between the boundary points is the total width W3, and the total width W4 is zero.
  • the present invention has been described above based on the preferred embodiment thereof, the present invention is not limited to the above-described embodiment.
  • the longitudinal ridge shape 5A in each embodiment has been described as having a linear shape, but it can be changed as long as the effect of the present invention is exhibited, and may be, for example, a corrugated shape.
  • the widthwise ridge shape 5B in each embodiment has been described as having a corrugated shape, but it can be changed as long as the effect of the present invention is exhibited, and may be, for example, a linear shape. ..
  • an absorbent body including a liquid-permeable surface sheet, an absorber and a leak-proof sheet, has a longitudinal direction corresponding to the front-back direction of the wearer and a width direction orthogonal to the longitudinal direction, and is along the longitudinal direction.
  • An absorbent article comprising a ventral region, an inseam region and a dorsal region, wherein the absorber is arranged from the ventral region to the dorsal region.
  • An exterior sheet is arranged on the non-skin facing surface side of the absorbent body.
  • the exterior sheet is formed with a longitudinal ridge groove shape having longitudinal ridges extending in the longitudinal direction and longitudinal grooves alternately.
  • the longitudinal ridge shape is an absorbent article formed in a region of the inseam region that overlaps with the absorber in the thickness direction.
  • ⁇ 2> The exterior sheet and the leakage-proof sheet are intermittently joined in the width direction in the joining region extending in the longitudinal direction.
  • ⁇ 3> The absorbent article according to ⁇ 2>, wherein the region defined by the exterior sheet and the leak-proof sheet is hollow in the longitudinal ridge.
  • ⁇ 4> The absorbent article according to any one of ⁇ 1> to ⁇ 3>, wherein the exterior sheet is an air-through non-woven fabric.
  • ⁇ 5> The absorbent article according to any one of ⁇ 1> to ⁇ 4>, wherein the longitudinal ridge shape is formed from the ventral region to the dorsal region.
  • the width direction ridge groove shape which alternately has the width direction ridge portion and the width direction groove portion extending in the width direction is formed on the non-skin facing surface side of the exterior sheet in the ventral region.
  • ⁇ 7> The width direction ridge groove shape having the width direction ridges and the width direction grooves extending in the width direction alternately on the non-skin facing surface side of the exterior sheet in each of the ventral region and the dorsal region.
  • the ventilation resistance of the second exterior member is 0.005 kPa ⁇ s / m or more and 0.2 kPa ⁇ s / m or less, preferably 0.01 kPa ⁇ s / m or more and 0.1 kPa ⁇ s / m or less.
  • the ventilation resistance of the exterior sheet is 0.001 kPa ⁇ s / m or more and 0.1 kPa ⁇ s / m or less, preferably 0.003 kPa ⁇ s / m or more and 0.05 kPa ⁇ s / m or less.
  • the absorbent article according to ⁇ 11> is 0.001 kPa ⁇ s / m or more and 0.1 kPa ⁇ s / m or less, preferably 0.003 kPa ⁇ s / m or more and 0.05 kPa ⁇ s / m or less.
  • the number of each of the width direction ridges and the width direction groove forming the width direction ridge groove shape is preferably 5 lines / 10 cm or more, and more preferably 10 lines / 10 cm or more, respectively.
  • the total width of the groove portion in the width direction along the longitudinal direction is substantially absent, or preferably more than 0 mm and 3 mm or less, more preferably 0.5 mm or more and 1.5 mm or less.
  • ⁇ 16> The absorbent article according to any one of ⁇ 6> to ⁇ 15>, wherein the cross-sectional area of the widthwise groove is larger than the cross-sectional area of the longitudinal groove.
  • Cross-sectional area along the longitudinal direction of the width direction groove portion 0.5 mm 2 or more 10 mm 2 or less, preferably is 0.8 mm 2 or more 5 mm 2 or less, the absorbent article according to ⁇ 16>.
  • ⁇ 18> The absorbent article according to ⁇ 16> or ⁇ 17>, wherein the cross-sectional area of the longitudinal groove portion along the width direction is 0.1 mm 2 or more and 5 mm 2 or less, preferably 0.3 mm 2 or more and 2 mm 2 or less. .. ⁇ 19>
  • ⁇ 20> In the ventral region, a pair of ventral side flaps extending outward in the width direction of the absorbent body, and In the dorsal region, a pair of dorsal side flaps extending outward in the width direction of the absorbent body are provided. Fastening tape is arranged on each of the dorsal side flaps. A landing tape for fastening the fastening tape is arranged in the ventral region. The ventral side flap portion and the dorsal side flap portion are formed so as to overlap each other when the absorbent article is worn.
  • Elastic members are arranged on each of the dorsal side flaps.
  • the number of the longitudinal ridges is 8/10 cm or more and 100/10 cm or less, preferably 16/10 cm or more and 80/10 cm or less, according to any one of ⁇ 1> to ⁇ 21>.
  • Absorbent article. ⁇ 23> The number of grooves in the longitudinal direction is 8/10 cm or more and 100/10 cm or less, preferably 16/10 cm or more and 80/10 cm or less, according to any one of ⁇ 1> to ⁇ 22>.
  • Absorbent article. ⁇ 24> The absorbent article according to any one of ⁇ 1> to ⁇ 23>, wherein the height of the longitudinal ridge is 0.2 mm or more and 3 mm or less, preferably 0.4 mm or more and 2 mm or less.
  • the total width of the longitudinal groove portion along the width direction is substantially nonexistent, or preferably more than 0 mm and 5 mm or less, more preferably 0.2 mm or more and 2 mm or less.
  • an absorbent article that suppresses discomfort and misidentification of leakage due to water vapor released to the outside of the absorbent article and improves comfort when worn.

Landscapes

  • 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)
PCT/JP2020/020506 2019-05-30 2020-05-25 吸収性物品 WO2020241553A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB2116207.8A GB2597193B (en) 2019-05-30 2020-05-25 Absorbent article
CN202080039414.9A CN113891699B (zh) 2019-05-30 2020-05-25 吸收性物品
DE112020002768.6T DE112020002768T5 (de) 2019-05-30 2020-05-25 Saugfähiger artikel

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JP2019-101786 2019-05-30
JP2019101786A JP7252831B2 (ja) 2019-05-30 2019-05-30 吸収性物品

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CN (1) CN113891699B (zh)
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GB (1) GB2597193B (zh)
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JPH0263834U (zh) * 1988-10-31 1990-05-14
JPH08126663A (ja) * 1994-09-06 1996-05-21 Kao Corp 吸収性物品
JP2008136794A (ja) * 2006-12-05 2008-06-19 Kao Corp パンツ型吸収性物品
JP2009072472A (ja) * 2007-09-21 2009-04-09 Daio Paper Corp テープ式使い捨ておむつ
JP2011083389A (ja) * 2009-10-14 2011-04-28 Kao Corp 吸収性物品

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Publication number Priority date Publication date Assignee Title
JP3667353B2 (ja) * 1992-08-13 2005-07-06 株式会社日本吸収体技術研究所 液体不透過性保護用品
JP3701208B2 (ja) * 2000-03-13 2005-09-28 ユニ・チャーム株式会社 開孔シートとこの開孔シートを使用した吸収性物品および前記開孔シートの製造方法。
CN102871802B (zh) * 2006-12-04 2016-06-01 宝洁公司 包括图形的吸收制品
US20100298796A1 (en) 2009-05-20 2010-11-25 Thomas Alexander Horn Wearable Absorbent Articles With Bonded And Printed Fibrous Materials
JP5535569B2 (ja) * 2009-10-05 2014-07-02 花王株式会社 吸収性物品
CN203425131U (zh) * 2013-03-28 2014-02-12 陈正平 一种纸尿裤前贴复合结构
JP6101657B2 (ja) 2014-04-15 2017-03-22 ユニ・チャーム株式会社 使い捨ておむつ
CN204683924U (zh) * 2015-05-11 2015-10-07 樱贸科技发展（上海）有限公司 吸收性物品

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Publication number Priority date Publication date Assignee Title
JPH0263834U (zh) * 1988-10-31 1990-05-14
JPH08126663A (ja) * 1994-09-06 1996-05-21 Kao Corp 吸収性物品
JP2008136794A (ja) * 2006-12-05 2008-06-19 Kao Corp パンツ型吸収性物品
JP2009072472A (ja) * 2007-09-21 2009-04-09 Daio Paper Corp テープ式使い捨ておむつ
JP2011083389A (ja) * 2009-10-14 2011-04-28 Kao Corp 吸収性物品

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DE112020002768T5 (de) 2022-02-17
GB2597193B (en) 2023-04-19
TW202100119A (zh) 2021-01-01
CN113891699A (zh) 2022-01-04
JP2020195424A (ja) 2020-12-10
CN113891699B (zh) 2022-11-18
GB202116207D0 (en) 2021-12-29
GB2597193A (en) 2022-01-19

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