WO2021235280A1 - Article absorbant - Google Patents

Article absorbant Download PDF

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Publication number
WO2021235280A1
WO2021235280A1 PCT/JP2021/017990 JP2021017990W WO2021235280A1 WO 2021235280 A1 WO2021235280 A1 WO 2021235280A1 JP 2021017990 W JP2021017990 W JP 2021017990W WO 2021235280 A1 WO2021235280 A1 WO 2021235280A1
Authority
WO
WIPO (PCT)
Prior art keywords
skin
absorbent article
ventral
dorsal
absorbent core
Prior art date
Application number
PCT/JP2021/017990
Other languages
English (en)
Japanese (ja)
Inventor
俊介 瀧野
▲シィアォ▼▲トン▼ 郭
晨 ▲呉▼
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
Priority to JP2022524403A priority Critical patent/JPWO2021235280A1/ja
Publication of WO2021235280A1 publication Critical patent/WO2021235280A1/fr

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/496—Absorbent articles specially adapted to be worn around the waist, e.g. diapers in the form of pants or briefs
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/49007—Form-fitting, self-adjusting disposable diapers
    • A61F13/49009—Form-fitting, self-adjusting disposable diapers with elastic means
    • A61F13/49011—Form-fitting, self-adjusting disposable diapers with elastic means the elastic means is located at the waist region
    • A61F13/49012—Form-fitting, self-adjusting disposable diapers with elastic means the elastic means is located at the waist region the elastic means being elastic panels
    • 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
    • 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
    • A61F13/4946—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 absorbent medium
    • 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
    • A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
    • 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
    • A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
    • A61F13/51121—Topsheet, i.e. the permeable cover or layer facing the skin characterised by the material
    • 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
    • A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
    • A61F13/513—Topsheet, i.e. the permeable cover or layer facing the skin characterised by its function or properties, e.g. stretchability, breathability, rewet, visual effect; having areas of different permeability
    • 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
    • A61F13/514—Backsheet, i.e. the impermeable cover or layer furthest from the skin
    • 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
    • A61F13/534—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 an inhomogeneous composition through the thickness 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
    • A61F2013/530481—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 superabsorbent materials, i.e. highly absorbent polymer gel materials
    • A61F2013/530489—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 superabsorbent materials, i.e. highly absorbent polymer gel materials being randomly mixed in with other material

Definitions

  • the present invention relates to an absorbent article.
  • Pants-type disposable diapers are known as absorbent articles that absorb excrement.
  • pants-type disposable diapers are provided with elastic members such as rubber threads around the waist to provide shrinkage in the width direction so that the position of the diaper does not easily shift when worn.
  • elastic members such as rubber threads around the waist to provide shrinkage in the width direction so that the position of the diaper does not easily shift when worn.
  • a material having a plurality of openings may be used to form the waist circumference portion.
  • Patent Document 1 has an elastic member extending along a stretch direction between a first nonwoven fabric layer and a second nonwoven fabric layer, one of which is a perforated nonwoven fabric, and absorbs in the middle in the width direction of the waist portion.
  • an elastic structure of a disposable wear article in which a non-woven fabric region is provided by cutting a part of the elastic member provided in the front-rear range having a body, and elastic regions are provided on both sides of the non-woven fabric region in the width direction.
  • a non-stretchable region is provided in the central portion in the width direction of the waist circumference, and the sheet material arranged inside the waist circumference (skin side) is opened for improving breathability.
  • the moisture released from the absorber that has absorbed water such as urine to the non-skin facing surface side passes through the inner sheet material having holes.
  • the adhesive force that has fixed the elastic member weakens, and the elastic member that has been partially cut may come off, or the sheet placed inside and outside the waist circumference.
  • the rigidity of the material may be weakened.
  • the present invention has been made in view of the above-mentioned conventional problems, and an object thereof is absorption that makes it difficult for moisture from the absorbent core to leak to the non-skin side and reduces the possibility that the elastic member comes off. It is to provide sex goods.
  • the main invention for achieving the above object is an absorbent body having vertical, horizontal and thickness directions intersecting each other and having an absorbent core, and a waistline portion arranged around the wearer's waistline.
  • the waistline portion has a skin-side sheet having a plurality of openings and a non-skin-side sheet provided on the non-skin-side side of the skin-side sheet, and has the thickness.
  • the laterally stretchable elastic member is fixed with an adhesive, and at least in the laterally at least central portion of the absorbent article.
  • the elastic member is discontinuous, the film is arranged on the non-skin side of the absorbent core and on the skin side of the skin-side sheet, and both ends of the film in the lateral direction are arranged.
  • the absorbent article characterized in that it is located outside the lateral direction of both ends of the absorbent core in the lateral direction.
  • the present invention it is possible to provide an absorbent article that makes it difficult for moisture from the absorbent core to leak to the non-skin side and reduces the possibility that the elastic member will come off.
  • FIG. 1 It is a schematic perspective view of the pants type disposable diaper 1. It is a schematic plan view of the diaper 1 in the expanded and extended state as seen from the skin side. 3A is a schematic cross-sectional view taken along the line AA of FIG. 2, and FIG. 3B is a schematic cross-sectional view taken along the line BB of FIG. It is a figure which showed the plurality of openings 40 in the schematic plan view of FIG. It is a schematic plan view of the diaper 1 in the unfolded and stretched state as seen from the non-skin side. It is a figure explaining a certain opening 40 among the plurality of openings 40 of the skin side sheet 2a. FIG.
  • FIG 3 is a schematic plan view of the unfolded and stretched diaper 1 as viewed from the non-skin side, showing an example of the case where the print sheet 60 is provided on the diaper 1 of the present embodiment. It is a schematic plan view of the expanded and extended state diaper 1 as seen from the skin side, showing an example of the case where the thin paper 70 is provided on the dorsal waist circumference portion 30 of the present embodiment.
  • An absorbent article having a vertical direction, a horizontal direction, and a thickness direction intersecting with each other, and having an absorbent body having an absorbent core and a waistline portion arranged around the wearer's waistline.
  • the waist circumference portion has a skin-side sheet having a plurality of openings and a non-skin-side sheet provided on the non-skin-side side of the skin-side sheet, and the skin-side sheet and the non-skin-side sheet in the thickness direction.
  • An elastic member that can be expanded and contracted in the lateral direction is fixed to the side sheet with an adhesive, and the elastic member is discontinuous at at least in the central portion of the absorbent article in the lateral direction.
  • the film is arranged on the non-skin side of the absorbent core and on the skin side of the skin-side sheet, and the lateral ends of the film are the lateral ends of the absorbent core. It is an absorbent article characterized by being located on the outer side in the lateral direction.
  • the absorbent core when the absorbent core absorbs the liquid, moisture is released from the absorbent core toward the skin side sheet side (non-skin side), and the influence of this moisture causes the skin side sheet and the skin side sheet.
  • the fixing force of the elastic member to the non-skin side sheet by the adhesive may be weakened, but by arranging the film between the absorbent core and the skin side sheet, moisture leaks to the non-skin side rather than the film. It can be made difficult. Thereby, the possibility that the elastic member comes off can be reduced.
  • the continuous portion of the elastic member fits along the roundness of the body by the expansion and contraction of the elastic member, so that the absorbent core overlaps with the lateral inner end of the continuous portion.
  • the part of the body fits along the roundness of the body.
  • the film since the film also has a portion that overlaps with the continuous portion, the film also fits the body and prevents moisture released from the lateral end of the absorbent core from leaking to the non-skin side of the film. can.
  • the film can suppress the movement of moisture released from the lateral end of the absorbent core to the non-skin side.
  • the waist circumference portion has a ventral waist circumference portion located on the ventral side of the wearer and a dorsal waist circumference portion located on the back side of the wearer, and has the waist circumference portion in the thickness direction.
  • a ventral discontinuous portion in which the elastic member is discontinuous is provided, and when viewed in the thickness direction.
  • a dorsal discontinuous portion in which the elastic member is discontinuous is provided, and the ventral discontinuity is provided in the lateral direction.
  • the length of the continuous portion is preferably shorter than the length of the dorsal discontinuous portion.
  • the waist circumference portion has a ventral waist circumference portion located on the ventral side of the wearer and a dorsal waist circumference portion located on the back side of the wearer, and has the waist circumference portion in the thickness direction.
  • a ventral discontinuous portion in which the elastic member is discontinuous is provided, and when viewed in the thickness direction.
  • a dorsal discontinuous portion in which the elastic member is discontinuous is provided, and the ventral discontinuity is provided in the lateral direction. It is desirable that the length of the continuous portion is longer than the length of the dorsal discontinuous portion.
  • the ventral waistline portion is also close to the urination position. Therefore, by lengthening the discontinuous portion, there are many areas where the absorbent core does not contract laterally, and the ventral absorption occurs. Can maintain sex.
  • the continuous portion is defined as the ventral continuous portion, and the elastic member provided in the dorsal waist circumference portion.
  • the continuous portion is a dorsal continuous portion
  • the lateral inner end of the ventral continuous portion and the lateral inner end of the dorsal continuous portion have the thickness. Seen in the direction, it overlaps with the absorbent core, and in the thickness direction, the number of materials between the absorbent core and the lateral inner end of the ventral continuous portion is: It is desirable that the number of materials is less than the number of materials between the absorbent core and the lateral inner end of the dorsal continuous portion.
  • the continuous portion is defined as the ventral continuous portion, and the elastic member provided in the dorsal waist circumference portion.
  • the continuous portion is a dorsal continuous portion
  • the lateral inner end of the ventral continuous portion and the lateral inner end of the dorsal continuous portion have the thickness. Seen in the direction, it overlaps with the absorbent core, and in the thickness direction, the number of materials between the absorbent core and the lateral inner end of the ventral continuous portion is: It is desirable to have more material than the number of materials between the absorbent core and the lateral inner end of the dorsal continuous portion.
  • the ventral waistline is closer to the position where urine is absorbed than the dorsal side, so that the moisture released from the absorbent core is easily transferred, but from the absorbent core.
  • the absorbent article has a pair of leg-circumferential openings, and each of the pair of leg-surrounding openings is provided with a leg-surrounding elastic member that imparts elasticity. It is desirable that the portion of the absorbent core extending laterally outward from the lateral end has a portion overlapping the leg-rotating elastic member when viewed in the thickness direction.
  • the moisture released from the absorbent core may move to the wearer's inner thigh through the leg opening, but the leg opening should be along the leg.
  • the film By arranging the film so as to overlap with the leg circumference elastic member, moisture is less likely to leak to the non-skin side than the leg circumference opening. Therefore, it is possible to reduce the possibility that the wearer's inner thighs become stuffy or have a rash.
  • the absorbent body has a back sheet that covers the absorbent core from the non-skin side, and the back sheet is arranged on the non-skin side of the film and sandwiches the film. As described above, it has a folded portion in which both ends in the lateral direction are folded back toward the skin side, and in the lateral direction, a predetermined position is provided between the end of the film and the outer end of the folded portion of the back sheet. It is desirable that there is an interval.
  • the folded portion of the back sheet forms an opening around the leg, and the lateral outer edge of the folded portion easily hits the skin, so that the skin reaches the end when the film reaches the end.
  • the film up to the end it is possible to improve the skin contact.
  • the longitudinal end of the absorbent core overlaps with the film, and the longitudinal end of the absorbent core is , It is desirable that the elastic member has a portion that overlaps with the discontinuous portion.
  • Such an absorbent article has another film different from the film arranged on the non-skin side of the film and on the skin side of the elastic member.
  • the skin-side sheet is made of a hydrophobic sheet and the non-skin-side sheet is made of a hydrophilic sheet.
  • the moisture around the waist is passed to the non-skin side by the opening of the skin side sheet and the hydrophobic performance, and the hydrophilic performance of the non-skin side sheet absorbs the moisture, so that the moisture is not removed. It promotes transfer to the skin side and improves breathability. As a result, it is possible to prevent stuffiness on the skin side sheet side that comes into contact with the skin.
  • a thin paper containing pulp fibers is provided on the non-skin side of the skin side sheet, and the thin paper and the absorbent core do not overlap when viewed in the thickness direction. desirable.
  • the moisture and moisture around the waist drawn from the opening of the skin side sheet are absorbed by the thin paper, so that the transfer of moisture to the non-skin side is promoted. As a result, it is possible to prevent stuffiness on the skin side sheet side that comes into contact with the skin.
  • the absorbent article has a pair of leg-circumferential openings, and each of the pair of leg-circumferential openings is provided with a leg-surrounding elastic member that imparts elasticity.
  • the continuous portion is regarded as a continuous portion, it is desirable to have a portion where the continuous portion and the leg-rotating elastic member overlap when viewed in the thickness direction.
  • an absorbent article after the absorbent core absorbs urine or the like, a force pulling the lower side of the product by the weight of the absorbed liquid acts on the elastic member around the leg. In conjunction with the downward pulling force, the elastic member around the waistline pulls laterally to support the elastic member around the leg, and the absorbent article can be prevented from dripping downward.
  • the diameter of the skin side sheet on the skin surface side is set in a certain opening among the plurality of openings of the skin side sheet. It is desirable that the diameter of the skin side sheet is larger than the diameter of the non-skin surface side.
  • a pants-type disposable diaper for infants as an absorbent article according to the present invention.
  • the present invention is not limited to the above, and the absorbent article according to the present invention can also be applied to disposable diapers for adults, shorts-type sanitary napkins, and the like.
  • FIG. 1 is a schematic perspective view of a pants-type disposable diaper 1 (hereinafter referred to as “diaper 1”).
  • FIG. 2 is a schematic plan view of the unfolded and stretched diaper 1 as viewed from the skin side. Note that FIG. 2 is a diagram in which the opening 40 described later is omitted for convenience of explanation.
  • 3A is a schematic cross-sectional view taken along the line AA of FIG. 2
  • FIG. 3B is a schematic cross-sectional view taken along the line BB of FIG.
  • the diaper 1 has a vertical direction and a horizontal direction that intersect each other in the pants-shaped state of FIG. Further, it has a thickness direction which intersects each other in the vertical direction and the horizontal direction and is a direction in which the materials constituting the diaper 1 are laminated (see FIG. 3).
  • the lateral direction in the unfolded state (hereinafter, also referred to as “width direction”) is synonymous with the lateral direction in the pants-shaped state of FIG.
  • the vertical direction in the unfolded state is the direction along the vertical direction in the pants-shaped state, but the meanings of the two are slightly different. Therefore, in the following description, the vertical direction in FIG.
  • the diaper 1 in the longitudinal direction in this unfolded state is also referred to as a “ventral side”, and the other side in the longitudinal direction is also referred to as a “dorsal side”.
  • the side that comes into contact with the wearable person in the thickness direction is referred to as “skin side”, and the opposite side is referred to as “non-skin side”.
  • the above-mentioned “deployed” state means both ends of the ventral portion (ventral waist circumference portion 20 described later) and both ends of the dorsal portion (dorsal waist circumference portion 30 described later) in the lateral direction of the diaper 1. It is a state in which the diaper 1 is unfolded on a plane by breaking the connection with the portion, separating the ventral portion and the dorsal portion, and opening the diaper 1 in the longitudinal direction thereof.
  • the “stretched” state of the diaper 1 is a state in which the entire diaper 1 (the entire product) is stretched without wrinkles, specifically, each member constituting the diaper 1 (for example, the absorbent main body 10 described later, and the like. It refers to a state in which the dimensions of the ventral and dorsal waist circumferences 20, 30, etc.) are extended until they match or are close to the dimensions of the individual member.
  • the diaper 1 is a so-called three-piece type, and has an absorbent main body 10 that is applied to the crotch portion of the wearer to absorb excrement such as urine, and a waist circumference portion 2 arranged around the wearer's waist. And have.
  • the waist circumference portion 2 has a ventral waist circumference portion 20 located on the ventral side of the wearer and a dorsal waist circumference portion 30 located on the back side of the wearer.
  • the diaper 1 is formed with a waist opening BH and a pair of leg openings LH (see FIG. 1).
  • the upper side in the vertical direction (vertical direction) corresponds to the waist circumference opening BH side, and the lower side corresponds to the crotch part side.
  • the ventral waist circumference portion 20 and the dorsal waist circumference portion 30 are arranged in parallel at intervals in the vertical direction (vertical direction in the unfolded state), and the absorbent main body is placed between them. 10 is handed over.
  • the ventral waist circumference 20 is fixed to one end of the absorbent body 10
  • the dorsal waist circumference 30 is fixed to the other end, and the external shape thereof is substantially H in plan view. There is.
  • the absorbent main body 10 uses the position CL at the center of the diaper 1 in the longitudinal direction (that is, the vertical direction) (the center of one end and the other end in the vertical direction of the unfolded diaper 1) as the folding position. Folded in half.
  • the ventral waist circumference portion 20 and the dorsal waist circumference portion 30 facing each other in this folded state are joined and connected at the lateral edge portion, these waist circumference portions are formed in an annular shape.
  • the diaper 1 in a worn state is formed with the waist opening BH and the pair of leg openings LH as shown in FIG.
  • the absorbent body 10 covers the absorbent core 11, the top sheet 13 that covers the absorbent core 11 from the skin side, and the absorbent core 11 from the non-skin side. It is provided with a back sheet 15 that forms the exterior of the absorbent main body 10. Further, in the present embodiment, the film 17 is arranged on the non-skin side of the absorbent core 11.
  • the absorbent core 11 is a member made by laminating a liquid absorbent material, and can absorb excrement such as urine.
  • a liquid absorbent material for example, liquid-absorbing fibers such as pulp fibers and liquid-absorbing granules such as high-absorbent polymers (so-called SAP) can be used. Further, it may contain a liquid-absorbing material other than the liquid-absorbing fiber and the liquid-absorbing granules. Further, the absorbent core 11 may be covered with a liquid permeable sheet (not shown) such as tissue paper.
  • the absorbent core 11 of the present embodiment has a ventral end 11a, which is one end in the longitudinal direction in FIG. 2, and a dorsal end 11b, which is the other end. Then, between the ventral end portion 11a and the dorsal end portion 11b, there is a constricted portion 11c having a width narrower in the lateral direction than the ventral end portion 11a and the dorsal end portion 11b.
  • the absorbent core 11 is configured to have a substantially hourglass shape in a plan view as shown in FIG.
  • the top sheet 13 is a liquid-permeable flexible sheet such as a non-woven fabric, and is a flat size sheet larger than the absorbent core 11. Further, the top sheet 13 has folded portions 13r whose both ends in the lateral direction are folded back to the non-skin side of the absorbent core 11 (see FIG. 3A).
  • the back sheet 15 is a flexible sheet such as a non-woven fabric.
  • the film 17 covers the absorbent core 11 from the non-skin side and prevents liquids such as urine absorbed by the absorbent core 11 from leaking to the non-skin side.
  • the "film” in the present embodiment is a liquid-impermeable and impermeable resin sheet containing a synthetic resin as a main component, and is composed of, for example, polyethylene, polypropylene, etc., particularly non-permeable. It is a sheet with excellent moisture permeability. That is, it is preferable that the film 17 has excellent non-breathability by itself.
  • the film 17 is arranged between the absorbent core 11 and the back sheet 15, but the present invention is not limited to this, and the skin-side sheet which is on the non-skin side of the absorbent core 11 and will be described later. It suffices if it is arranged closer to the skin than 2a.
  • the back sheet 15 has a plane size such that it projects in the vertical and horizontal directions from the absorber 11. Then, in a state where the absorbent core 11 and the film 17 are sandwiched between the top sheet 13 and the back sheet 15, the back sheet 15 and the film 17 are joined by an adhesive such as hot melt, and the absorbent core 11 and the top are joined.
  • the folded portion 13r of the sheet 13 and the film 17 are similarly joined by an adhesive such as hot melt.
  • the so-called three-dimensional gather LSG and the leg circumference gather LG are formed by the back sheet 15.
  • the three-dimensional gather LSG is a leak-proof wall portion provided upright at each lateral end of the top sheet 13, while the leg gather LG is formed in each leg opening LH of the diaper 1. It is an elastic part around the legs.
  • the back sheet 15 is arranged on the non-skin side of the film 17, and the lateral dimension of the back sheet 15 is made larger than that of the film 17. ing.
  • the back sheet 15 is folded back toward the skin at both ends in the lateral direction so as to sandwich the film 17, with the position forming the lateral end 10es of the absorbent body 10 as the folded position. Is referred to as "folded portion 15 bg").
  • a plurality of leg-turning elastic members 18 such as rubber threads are fixed to the non-skin side of the folded-back portion 15bg in a vertically extended state, whereby the above-mentioned leg-turning gather LG is formed. ing.
  • the folded-back portion 15bg further extends inward (center side) in the lateral direction, and is joined to the same end portion at a position covering the lateral end portion of the top sheet 13. Then, a portion on the tip side in the width direction of the portion joined to the end portion can stand up from the top sheet 13 as a free end portion LSGf.
  • an LSG elastic member 19 such as a rubber thread is fixed to the tip of the free end portion LSGf in a vertically extended state. Therefore, due to the vertical contraction of the LSG elastic member 19, the absorbent main body 10 is curved in the vertical direction so that the top sheet 13 side is the inner peripheral side. Due to the force, the free end portion LSGf contracts in the vertical direction and stands up from the top sheet 13, whereby the free end portion LSGf functions as a three-dimensional gather LSG.
  • a predetermined distance is provided between the end 17e of the film 17 and the outer end 15bge of the folded-back portion 15bg of the back sheet 15 in the lateral direction. That is, the film 17 does not reach the outer end 15bge of the folded portion 15bg of the backsheet 15 in the lateral direction.
  • the folded portion 15bg of the back sheet 15 is a portion forming the leg circumference opening LH, and the lateral outer end 15bge of the folded portion 15bg easily hits the wearer's skin, so that the film 17 reaches the end 15bge. If this is the case, the skin may feel uncomfortable, but by not arranging the film 17 up to the end 15bge, the skin contact can be improved.
  • the waist circumference portion 2 (ventral waist circumference portion 20 and dorsal waist circumference portion 30) is different from the skin side sheet 2a arranged on the skin side in the thickness direction and the skin side sheet 2a. It has a non-skin side sheet 2b provided on the skin side and a plurality of elastic members 23 and 33. As shown in FIG. 2 and FIG. 4 described later, The upper end portion of the non-skin side sheet 2b in the vertical direction is folded back toward the skin side so as to cover the upper end portion of the skin side sheet 2a and the upper end portion of the absorbent main body 10.
  • the skin-side sheet 2a and the non-skin-side sheet 2b are flexible sheet members made of non-woven fabrics such as spunbonded non-woven fabrics, thermal-bonded non-woven fabrics, and spunlaced non-woven fabrics.
  • non-woven fabrics such as spunbonded non-woven fabrics, thermal-bonded non-woven fabrics, and spunlaced non-woven fabrics.
  • material fiber constituting the non-woven fabric include polypropylene (PP), polyethylene (PE), polyethylene terephthalate (PET) and the like.
  • PP polypropylene
  • PE polyethylene
  • PET polyethylene terephthalate
  • the plurality of elastic members 23 are elastic members that can be expanded and contracted in the lateral direction, and are arranged side by side in the vertical direction (vertical direction) between the skin side sheet 2a and the non-skin side sheet 2b of the ventral waist circumference portion 20. At the same time, it is fixed in a laterally elongated state by an adhesive such as a hot melt adhesive.
  • the plurality of elastic members 33 are also elastic members that can be expanded and contracted in the lateral direction, and are vertically (vertically) between the skin side sheet 2a and the non-skin side sheet 2b of the back side waist circumference portion 30. They are arranged side by side and fixed in a laterally elongated state by an adhesive such as a hot melt adhesive.
  • the ventral waist circumference portion 20 and the dorsal waist circumference portion 30 are provided with elasticity.
  • the elastic members 23 and 33 include thread-shaped rubber and the like. In this embodiment, a portion where the elastic members 23 and 33 are discontinuous is provided, which will be described later.
  • FIG. 4 is a diagram showing a plurality of openings 40 in the schematic plan view of FIG. 2.
  • FIG. 5 is a schematic plan view of the unfolded and stretched diaper 1 as viewed from the non-skin side. As shown in FIG. 4, a plurality of openings 40 are formed in the skin side sheets 2a of the ventral waist circumference portion 20 and the dorsal waist circumference portion 30 at intervals. Further, as shown in FIG. 5, a plurality of openings 40 are formed in the non-skin side sheets 2b of the ventral waist circumference portion 20 and the dorsal waist circumference portion 30 at intervals.
  • a plurality of openings 40 are provided in the central portion in the width direction.
  • the plurality of openings 40 improve the air permeability of the diaper 1 and promote the release of moisture to the outside.
  • the shape of the opening 40 is not limited to the circular shape shown in the figure, and may be various shapes.
  • the arrangement of the holes 40 is not limited to the pattern shown in the figure, and any pattern such as partial provision may be adopted. Further, in the present embodiment, the holes 40 are provided in both the skin side sheet 2a and the non-skin side sheet 2b, but one of the sheets may have the holes 40.
  • ventral and dorsal discontinuous portions 23b and 33b is not limited to the positions shown in FIG. 2, and is intended to suppress the lateral contraction of the absorbent core 11 at least in the lateral direction of the diaper 1. It may be provided in. Further, here, among the elastic members 23 having the discontinuous portion (ventral discontinuous portion 23b), the continuous portion is referred to as the ventral continuous portion 23a, and the discontinuous portion (discontinuous). Of the elastic members 33 having the dorsal discontinuous portion 33b), the continuous portion is referred to as the dorsal continuous portion 33a.
  • the elastic members 23 and 33 When the elastic members 23 and 33 are arranged between the skin side sheet 2a and the non-skin side sheet 2b, the elastic members 23 and 33 are attached with an adhesive at the portions that become the ventral and dorsal discontinuous portions 23b and 33b.
  • the elastic members 23 and 33 are cut at the portions that are not fixed and are the ventral and dorsal discontinuous portions 23b and 33b. Thereby, while leaving the elasticity of the ventral continuous portion 23a and the dorsal continuous portion 33a, the ventral discontinuous portion 23b and the dorsal discontinuous portion 33b are configured so as not to expand and contract in the lateral direction (width direction). Can be done.
  • ventral and dorsal discontinuous portions 23b and 33b are not limited to this, and for example, the elastic members 23 and 33 are fixed with an adhesive also in the portions of the ventral and dorsal discontinuous portions 23b and 33b.
  • the elastic members 22 and 33 are cut by pressing or the like at a plurality of locations in the ventral and dorsal discontinuous portions 23b and 33b (that is, finely cut) to kill the elasticity. It can also be formed.
  • the cutting balance continuous from the elastic members 23 and 33 of the ventral continuous portion 23a and the dorsal continuous portion 33a contracts to the natural length. It remains in the state of being.
  • continuous and discontinuous mean that the elastic members 23 and 33 have a ventral waist circumference 20 and a dorsal waist circumference. It means a portion that can or does not exhibit lateral elasticity with respect to the portion 30.
  • the portions that can exhibit lateral elasticity are the ventral and dorsal continuous portions 23a and 33a, and the portions that do not exhibit lateral elasticity due to cutting are the ventral and dorsal discontinuous portions 23b and 33b. ..
  • the ventral waist circumference portion 20 and the dorsal waist circumference portion 30 have an opening 40 for improving air permeability
  • the ventral waist circumference portion 20 and the dorsal waist circumference portion 30 have elastic members 23 and 33.
  • the discontinuous portions 23b and 33b are provided, the moisture released from the absorbent core 11 that has absorbed urine to the non-skin side passes through the opening 40, and when a large amount of the moisture is released, the ventral side and the ventral side and 33b are provided.
  • the elastic members 23, 33 in the continuous portions 23a, 33a are damaged due to the adhesive strength of the adhesives of the dorsal continuous portions 23a, 33a being weakened, or the rigidity of the skin side sheet 2a or the non-skin side sheet 2b being weakened. There is a risk of omission.
  • the film 17 is arranged on the non-skin side of the absorbent core 11 and on the skin side of the skin-side sheet 2a, and both ends 17e in the lateral direction of the film 17 absorb. It is located laterally outside the lateral ends 11e of the sex core 11 (see FIGS. 2, 3A and 3B).
  • the absorbent core 11 absorbs a liquid such as urine
  • moisture is released from the absorbent core 11 toward the skin side sheet 2a side (non-skin side).
  • the lateral ends 17e of the film 17 are located laterally outside the lateral ends 11e of the absorbent core 11, the moisture leaking from the lateral ends of the absorbent core 11 is non-skinned.
  • the film 17 can suppress the tendency to move to the side.
  • the possibility that the adhesive force of the elastic members 23 and 33 to the skin side sheet 2a and the non-skin side sheet 2b is weakened by the influence of moisture is reduced, and the moisture causes the skin side sheet 2a or the non-skin side sheet 2b.
  • the possibility of weakening the rigidity can be reduced. In particular, by reducing such a possibility, it is possible to prevent the elastic members 23 and 33 from coming off in the ventral and dorsal continuous portions 23a and 33a.
  • the lateral inner end portions 23an and 33an of the ventral continuous portion 23a and the dorsal continuous portion 33a are the absorbent cores 11. It's a duplicate.
  • the ventral and dorsal continuous portions 23a, 33a of the elastic members 23, 33 are portions that fit along the roundness of the body by the expansion and contraction of the elastic members 23, 33, and therefore, the continuous portions 23a, 33a are laterally oriented.
  • the portion of the absorbent core 11 that overlaps the inner ends 23an and 33an also fits along the roundness of the body.
  • the film 17 since the film 17 also has a portion overlapping the continuous portions 23a and 33a, the film 17 also fits the body, and the moisture released from the lateral end portion of the absorbent core 11 is on the non-skin side of the film 17. It is possible to suppress leakage to the film.
  • the length of the portion 17ed of the film 17 extending laterally outward from the lateral end 11e of the absorbent core 11 is larger than the thickness of the absorbent core 11. Long is desirable.
  • the length of the laterally extending portion 17ed of the film 17 is so long that the moisture released from the lateral end of the absorbent core 11 is transferred to the non-skin side. This can be suppressed by the film 17.
  • the length of the ventral discontinuous portion 23b is shorter than the length of the dorsal discontinuous portion 33b in the lateral direction.
  • the swelling of the wearer's abdomen tends to cause the ventral side of the diaper 1 to shift downward during wearing.
  • the ventral discontinuous portion 23b where the elastic member 23 is discontinuous is provided for a long time, the contractility of the ventral side is reduced and there is a possibility that the elastic member 23 is more easily displaced. The fit of the ventral waist circumference 20 can be ensured.
  • the lateral inner end 23ae of the ventral continuous portion 23a is laterally inside the lateral inner end 33ae of the dorsal continuous portion 33a. Is located in.
  • the inner end 23ae of the ventral continuous portion 23a is located at a position that does not overlap with the folded portion 13r of the top sheet 13 when viewed in the thickness direction.
  • the inner end 33ae of the dorsal continuous portion 33a is located on the laterally outer side of the inner end 23ae of the ventral continuous portion 23a, so that it is the top in the thickness direction.
  • the materials between the absorbent core 11 and the lateral inner end 23ae of the ventral continuous portion 23a are the film 17, the back sheet 15, and the skin side sheet 2a.
  • the materials between the absorbent core 11 and the lateral inner end 33ae of the dorsal continuous portion 33a are the folded portion 13r of the top sheet 13, the film 17, the back sheet 15, and the skin side sheet 2a. It is four pieces of. That is, the number of materials between the absorbent core 11 and the lateral inner end 23ae of the ventral continuous portion 23a is between the absorbent core 11 and the lateral inner end 33a of the dorsal continuous portion 33a.
  • the moisture from the absorbent core 11 in the dorsal waist circumference portion 30 weakens the adhesive force of the elastic member 33 in the dorsal continuous portion 33a and the elastic member 33 may come off, the elastic member 33 may come off. It is not possible to obtain a fit that conforms to the shape, and there is a risk that it will easily shift.
  • the dorsal waist circumference portion 30 by increasing the number of materials from the absorbent core 11 to the lateral inner end 33ae of the dorsal continuous portion 33a, the possibility that moisture is transferred to the elastic member 33 side is reduced. Can be made to.
  • the pair of leg circumference openings LH and LH are each provided with leg circumference elastic members 18 that impart elasticity.
  • the portion 17ed of the film 17 extending laterally outward from the lateral end 11e of the absorbent core 11 is the leg elastic member 18 when viewed in the thickness direction. It has overlapping parts (see FIGS. 2, 3A, and 3B). Moisture released from the absorbent core 11 may move to the wearer's inner thigh through the leg opening LH, but the leg elastic member 18 that causes the leg opening LH to follow the leg.
  • the film 17 so as to overlap with the leg circumference opening LH, moisture is less likely to leak to the non-skin side than the leg circumference opening LH. Thereby, it is possible to reduce the possibility of stuffiness and rash on the inner thigh of the wearer.
  • the end portion 11a when viewed in the thickness direction (direction penetrating the paper surface of FIG. 2), the end portion 11a in the longitudinal direction of the absorbent core 11 on the ventral waist circumference portion 20 side and the dorsal side. Both the longitudinal end 11b of the absorbent core 11 on the waist circumference 30 side overlap with the film 17.
  • the end portion 11a when viewed in the thickness direction, the end portion 11a has a portion overlapping with the discontinuous portion 23b in which the elastic member 23 is discontinuous, and the end portion 11b has a non-continuous elastic member 33. It has a portion that overlaps with the discontinuous portion 33b that is considered continuous.
  • Each longitudinal end 11a and 11b of the absorbent core 11 has a portion overlapping such a discontinuous portion 23b (33b) where the elastic member 23 (33) is discontinuous, whereby the absorbent core 11 It is possible to suppress not only the shrinkage of the film 17 but also the shrinkage of the film 17 arranged on the non-skin side of the absorbent core 11. Since the film 17 does not shrink, it is possible to suppress the movement of moisture from the absorbent core 11 to the skin-side sheet 2a.
  • the diaper 1 of the present embodiment has a portion where the elastic member 23 and the elastic member 33 and the leg rotation elastic member 18 intersect. Specifically, when viewed in the thickness direction (the direction penetrating the paper surface in FIG. 2), the leg circumference elastic member 18, the ventral continuous portion 23a of the elastic member 23, and the dorsal continuous portion 33a of the elastic member 33. Has overlapping parts. In this case, the leg circumference elastic member 18, the ventral continuous portion 23a, and the dorsal continuous portion 33a respectively exert elasticity on each other.
  • the absorbent body 10 hangs down due to the weight of the absorbent core 11 that has absorbed the excrement, and the diaper 1 is attached to the leg elastic member 18.
  • a pulling force works on the underside. Since the leg circumference elastic member 18 tends to extend downward, the gap between the wearer's leg and the leg circumference opening LH becomes large, and excrement may leak to the outside through the gap. However, the leg circumference is pulled laterally by the elastic members 23 and 33 of the waist circumference portion 2 (ventral waist circumference portion 20 and dorsal waist circumference portion 30) in conjunction with the force of pulling the leg circumference elastic member 18 downward. It is possible to support the elastic member 18 and prevent the leg circumference elastic member 18 from extending downward.
  • the absorbent main body 10 (absorbable core 11)
  • the absorbent main body 10 is less likely to hang down, and it becomes easier to suppress the excrement from causing problems such as leakage to the outside. ..
  • FIG. 6 is a diagram illustrating a certain opening 40 among a plurality of opening 40s of the skin side sheet 2a.
  • a plurality of openings 40 are provided in the skin side sheet 2a arranged on the side in contact with the wearer's skin.
  • the opening 40 is formed by penetrating a pin from the skin surface side of the skin side sheet 2a. Since a tapered pin is used as the pin to be inserted, the diameter D1 on the skin surface side is larger than the diameter D2 on the non-skin surface side, as shown in FIG.
  • the shape of the opening 40 on the non-skin surface side may be difficult to see as a circle.
  • the diameter D2 on the non-skin surface side is the diameter D2 of the circumscribed circle 40C drawn so as to circumscribe the opening 40 on the non-skin surface side, thereby discriminating the size of the diameter D1 and the diameter D2. .. In this embodiment, it is not necessary to obtain a strict diameter, and it is sufficient if the magnitude relationship of the diameter can be confirmed.
  • the length of the ventral discontinuous portion 23b is configured to be shorter than the length of the dorsal discontinuous portion 33b in the lateral direction, but the present invention is not limited to this.
  • the length of the ventral discontinuous portion 23b may be longer than the length of the dorsal discontinuous portion 33b. Since the ventral waist circumference 20 is also close to the urination position, by lengthening the ventral discontinuous portion 23b, the area where the absorbable core 11 does not contract laterally increases, and the absorbability of the ventral waist circumference 20 is improved. Can be maintained.
  • the number of materials between the absorbent core 11 and the lateral inner end 23ae of the ventral continuous portion 23a is the lateral direction between the absorbent core 11 and the dorsal continuous portion 33a. It was configured to be less than the number of materials between the inner end 33a, but is not limited to this. For example, when viewed in the thickness direction, the number of materials between the absorbent core 11 and the lateral inner end 23ae of the ventral continuous portion 23a is the lateral direction of the absorbent core 11 and the dorsal continuous portion 33a. It may be larger than the number of materials between the inner end 33a and the inner end 33a.
  • ventral waist circumference 20 is closer to the position where urine is absorbed than the dorsal side and the moisture released from the absorbent core 11 is easily transferred, the lateral direction of the ventral continuous portion 23a from the absorbent core 11 By increasing the number of materials up to the inner end 23ae of the above, the possibility that moisture is transferred to the elastic member 23 side can be reduced.
  • the film 17 is provided on the absorbent main body 10, but the film 17 is not limited to this, and the film 17 is on the non-skin side of the film 17 and on the skin side of the elastic members 23 and 33. Another film different from the film 17 may be arranged.
  • FIG. 7 is a schematic plan view of the unfolded and stretched diaper 1 as viewed from the non-skin side, showing an example of the case where the print sheet 60 is provided on the diaper 1 of the present embodiment.
  • the film is a non-breathable resin sheet like the film 17, and here, as shown in FIG.
  • the ventral waist circumference portion 20 and the dorsal waist circumference portion 30 An example is a print sheet 60 (a portion indicated by a dot pattern in FIG. 7) arranged in the central portion in the width direction.
  • the print sheet 60 is, for example, a sheet on which a pattern or the like (not shown) visible from the outside of the diaper 1 is printed. Further, the printed sheet 60 is viewed in the thickness direction with each lateral inner end of the ventral continuous portion 23a of the elastic member 23 and each lateral inner end of the dorsal continuous portion 33a of the elastic member 33. They are arranged so that they overlap.
  • the moisture from the absorbent core 11 can be removed from the elastic members 23 and 33. Leakage to the 33 side can be further suppressed. As a result, the possibility of weakening the adhesive force of the elastic members 23 and 33 is further reduced, and in particular, the possibility of the elastic member 23 (33) coming off in the ventral continuous portion 23a (dorsal continuous portion 33a) is reduced. be able to.
  • the skin side sheet 2a and the non-skin side sheet 2b are not limited to the above embodiment.
  • the skin side sheet 2a may be made of a hydrophobic sheet, and the non-skin side sheet 2b is hydrophilic. It may consist of a sex sheet.
  • hydrophobic as used herein means that the liquid does not spread on the surface of the skin-side sheet 2a, and the surface of the skin-side sheet 2a has a contact angle larger than 90 °.
  • the contact angle is the contact angle at the intersection of the contour curve of the liquid and the horizontal plane in a state where the skin-side sheet 2a having a horizontal plane (horizontal surface) and the water (droplets) dropped on the horizontal plane are in contact with each other.
  • the skin-side sheet 2a has a hydrophobic surface when the contact angle is larger than 90 °.
  • the sheet having such hydrophobicity is the above-mentioned "hydrophobic sheet”.
  • the contact angle is smaller than 90 °, it is determined to be "hydrophilic” with high hydrophilicity, and the sheet having such hydrophilicity is the above-mentioned "hydrophilic sheet”.
  • such a hydrophobic sheet and a hydrophilic sheet may be a sheet to which hydrophobicity or hydrophilicity is imparted by subjecting a sheet (nonwoven fabric or the like) as a material to a hydrophobic treatment or a hydrophilic treatment.
  • a sheet nonwoven fabric or the like
  • the plurality of openings 40 and the hydrophobic performance of the skin-side sheet 2a make it easier for the moisture of the waist circumference 2 to pass to the non-skin side, and the hydrophilic performance of the non-skin-side sheet 2b absorbs the moisture, so that the moisture is absorbed.
  • the transferability to the non-skin side is promoted, and the air permeability can be improved. Thereby, stuffiness on the skin side sheet 2a side that comes into contact with the skin can be prevented.
  • FIG. 8 is a schematic plan view of the unfolded and stretched diaper 1 as viewed from the skin side, showing an example of the case where the thin paper 70 is provided on the dorsal waist circumference portion 30 of the present embodiment.
  • a thin paper 70 (the portion shown by diagonal lines) containing pulp fibers is provided on the non-skin side of the skin side sheet 2a of the dorsal waist circumference portion 30. Further, when viewed in the thickness direction (direction penetrating the paper surface in FIG. 8), the thin paper 70 and the absorbent core 11 do not overlap.
  • the thin paper 70 is, for example, a tissue sheet or the like. Since the moisture and moisture of the dorsal waist circumference portion 30 drawn from the plurality of openings 40 of the skin side sheet 2a are absorbed by the thin paper 70, the transfer of moisture to the non-skin side is promoted. Thereby, stuffiness on the skin side sheet 2a side that comes into contact with the skin can be prevented.

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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)
  • Dermatology (AREA)
  • Absorbent Articles And Supports Therefor (AREA)

Abstract

Article absorbant (1) comprenant : un corps principal absorbant (10) comprenant un noyau absorbant (11) ; et une section de taille (2). La section de taille (2) a : une feuille côté peau (2a) comprenant une pluralité d'ouvertures (40) ; et une feuille côté non-peau (2b). Des éléments élastiques (23, 33) sont fixés, à l'aide d'un adhésif, entre la feuille côté peau (2a) et la feuille côté non-peau (2b) dans la direction de l'épaisseur. Les éléments élastiques (23, 33) sont non continus dans au moins la section centrale de l'article absorbant (1) dans la direction latérale. Un film (17) est disposé plus loin sur le côté non-peau que le noyau absorbant (11) et plus loin sur le côté peau que la feuille côté peau (2a). Les deux extrémités (17e) du film (17) dans la direction latérale sont positionnées davantage sur l'extérieur, dans la direction latérale, que les deux extrémités (11e) du noyau absorbant (11) dans la direction latérale.
PCT/JP2021/017990 2020-05-19 2021-05-12 Article absorbant WO2021235280A1 (fr)

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CN202010425269.XA CN113679533A (zh) 2020-05-19 2020-05-19 吸收性物品
CN202010425269.X 2020-05-19

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WO2021235280A1 true WO2021235280A1 (fr) 2021-11-25

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CN (1) CN113679533A (fr)
WO (1) WO2021235280A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011229866A (ja) * 2010-04-30 2011-11-17 Daio Paper Corp 紙おむつ
JP2015221236A (ja) * 2015-08-04 2015-12-10 ユニ・チャーム株式会社 吸収性物品
JP2018140016A (ja) * 2017-02-28 2018-09-13 ユニ・チャーム株式会社 パンツ型吸収性物品
JP6495507B1 (ja) * 2018-03-27 2019-04-03 大王製紙株式会社 使い捨て着用物品の伸縮構造、及びこの伸縮構造を有するパンツタイプ使い捨て着用物品
JP2019084042A (ja) * 2017-11-07 2019-06-06 ユニ・チャーム株式会社 吸収性物品

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011229866A (ja) * 2010-04-30 2011-11-17 Daio Paper Corp 紙おむつ
JP2015221236A (ja) * 2015-08-04 2015-12-10 ユニ・チャーム株式会社 吸収性物品
JP2018140016A (ja) * 2017-02-28 2018-09-13 ユニ・チャーム株式会社 パンツ型吸収性物品
JP2019084042A (ja) * 2017-11-07 2019-06-06 ユニ・チャーム株式会社 吸収性物品
JP6495507B1 (ja) * 2018-03-27 2019-04-03 大王製紙株式会社 使い捨て着用物品の伸縮構造、及びこの伸縮構造を有するパンツタイプ使い捨て着用物品

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