WO2018079302A1 - Article absorbant - Google Patents

Article absorbant Download PDF

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Publication number
WO2018079302A1
WO2018079302A1 PCT/JP2017/037136 JP2017037136W WO2018079302A1 WO 2018079302 A1 WO2018079302 A1 WO 2018079302A1 JP 2017037136 W JP2017037136 W JP 2017037136W WO 2018079302 A1 WO2018079302 A1 WO 2018079302A1
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WO
WIPO (PCT)
Prior art keywords
region
sheet
absorbent article
convex
width direction
Prior art date
Application number
PCT/JP2017/037136
Other languages
English (en)
Japanese (ja)
Inventor
拓也 深山
坂口　智
匡志 宇田
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 KR1020197014178A priority Critical patent/KR102537750B1/ko
Priority to AU2017349535A priority patent/AU2017349535B2/en
Priority to CN201780065590.8A priority patent/CN109862859B/zh
Publication of WO2018079302A1 publication Critical patent/WO2018079302A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/51—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
    • A61F13/51104—Topsheet, i.e. the permeable cover or layer facing the skin the top sheet having a three-dimensional cross-section, e.g. corrugations, embossments, recesses or projections
    • 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
    • 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
    • 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
    • A61F13/512—Topsheet, i.e. the permeable cover or layer facing the skin characterised by its apertures, e.g. perforations
    • 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
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F13/531—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having a homogeneous composition through the thickness of the pad
    • A61F13/532—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having a homogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad

Definitions

  • the present invention relates to an absorbent article that absorbs urine and feces.
  • an absorbent article in which an opening (liquid guide recess) for drawing excrement is provided in the top sheet (see, for example, Patent Document 1).
  • the top sheet of Patent Document 1 is formed with a plurality of protrusions protruding to the skin facing surface side and openings that are disposed between the protrusions and penetrate in the thickness direction of the top sheet.
  • the protrusions and openings of the top sheet of Patent Document 1 are regularly arranged in the same arrangement over the entire top sheet with a certain interval in the front-rear direction and the width direction. Therefore, a wearing assistant such as a mother may recognize the convex portion and the opening like a pattern and cannot recognize the presence of the opening for drawing excrement. The wearing assistant cannot grasp the body sheet retractability of the top sheet and sometimes cannot use the absorbent article with peace of mind. As a result of various investigations by the applicant, it was found that the wearing assistant can easily obtain a sense of security during use by being able to grasp the retractability of the area where feces are discharged.
  • an object of the present invention is to provide an absorbent article that makes it easy for a wearing assistant to recognize the retractability of an area where feces are discharged and to provide a sense of security during use.
  • the absorbent article (disposable diaper 10) is located between the front waistline region (front waistline region 20), the rear waistline region (rear waistline region 30), and the front waistline region and the rear waistline region.
  • Inseam area (inseam area 25) the front-rear direction from the front waist area to the rear waist area (front-rear direction L) and the width direction (width direction W) orthogonal to the front-rear direction, straddling the inseam area,
  • An absorber (absorber 40) extending in at least one of the front waistline region and the rear waistline region, and a top sheet (top sheet 50) located on the skin-facing surface side of the absorber and in contact with the wearer;
  • the top sheet has a sheet convex portion (sheet convex portion 51) protruding to the skin facing surface side and an opening (opening 54) provided between the sheet convex portions.
  • the top sheet includes at least a first region (first region R1) disposed in the rear waistline region, and a second region (second region R2) disposed at least in the crotch region,
  • first region R1 disposed in the rear waistline region
  • second region R2 disposed at least in the crotch region
  • the shape of the sheet convex portion in one region is different from the shape of the sheet convex portion in the second region
  • the gist is that the opening is provided at least in the first region.
  • FIG. 2 is a cross-sectional view taken along line AA shown in FIG. It is the top view which expanded a part of top sheet of the disposable diaper shown in FIG.
  • FIG. 4 is a cross-sectional view taken along the line BB shown in FIG.
  • FIG. 4 is a sectional view taken along the line CC shown in FIG. 3.
  • It is a partially broken perspective view which shows typically the 1st field of a top sheet.
  • It is a partially broken perspective view which shows typically the 2nd field of a top sheet.
  • FIG. 10 is a perspective view of a top sheet according to Modification 3.
  • FIG. 10 is a perspective view of a top sheet according to Modification 3.
  • An absorbent body straddling the crotch region and extending to at least one of the front waistline region and the rear waistline region; It is located on the skin facing surface side than the absorber, and comprises a top sheet that comes into contact with the wearer,
  • the top sheet is an absorbent article having an opening provided between sheet convex portions protruding to the skin facing surface side,
  • the top sheet has at least a first region disposed in the rear waistline region, and a second region disposed at least in the crotch region, The shape of the sheet convex portion in the first region is different from the shape of the sheet convex portion in the second region,
  • the said opening is an absorbent article provided in the said 1st area
  • the first region is disposed at least in the rear waistline region and includes a region where feces are discharged.
  • the second region is disposed at least in the crotch region and includes a region where urine is discharged. Since the shape of the sheet convex portion in the first region is different from the shape of the sheet convex portion in the second region, the wearing assistant can easily recognize the first region. Moreover, since the shape of the convex part of the seat in the first region is different from the shape of the convex part of the seat in the second region, the wearing assistant has the performance of the top sheet disposed in the crotch region and the top disposed in the rear waist region. The difference between the performance of the seat can be grasped, and a sense of security that urine and feces are properly absorbed can be obtained.
  • the stool When the stool is discharged on the first region, the stool is accommodated in the space between the sheet convex portions and moves to the non-skin facing surface side through the opening between the sheet convex portions.
  • the stool since the stool is sandwiched by the wall by the sheet convex part, once the stool accommodated between the sheet convex parts touches the skin, the stool comes out from between the sheet convex parts and reattaches to the wearer. Can be suppressed.
  • Such an absorbent article A pair of three-dimensional gathers arranged on both outer sides in the width direction from the center in the width direction of the absorbent article, Each three-dimensional gather has a contraction region that contracts in the front-rear direction by an elastic member,
  • the bending rigidity of the first region is higher than the bending rigidity of the second region, It is desirable that the first region is disposed across the rear edge of the contraction region in the front-rear direction.
  • the rigidity in the vicinity of the rear end edge of the contraction region, which is the starting point of the three-dimensional gather, is increased.
  • the rigidity of the rising base point of the solid gather it becomes easy to ensure the height of the solid gather. Accordingly, it is possible to prevent side leakage of stool in the rear waist area.
  • the top sheet can be prevented from being covered with the three-dimensional gather, and the function of guiding the discharged stool between the first region sheet convex portions can be continued.
  • the absorbent body has a bending guide part that guides the bending of the absorbent article along the width direction, It is preferable that the bending guide portion is provided on the front side of the first region in a range where the contraction region is arranged in the front-rear direction.
  • Such an absorbent article As for the height of the sheet convex part of the 1st field, it is desirable that it is higher than the height of the sheet convex part of the 2nd field.
  • the wall by the sheet convex part sandwiching the stool can be formed relatively high. Since the wall by the sheet
  • the sheet convex portion in the first region is relatively high, the gap between the skin and the absorber is increased in the first region. Air permeability becomes high, the air inside an absorbent article becomes easy to flow out outside, and it can suppress stuffiness. Further, before the stool is accommodated between the sheet convex portions in the first area, the sheet convex portion is collapsed due to body pressure applied to the first area, and the sheet convexity is not applied to the first area. The thickness of the top sheet changes with the part standing upright. Since the height of the sheet convex portion in the first region is relatively high, the amount of change in the thickness of the top sheet due to the presence or absence of body pressure increases, making it easier for air to flow and the effect of suppressing stuffiness.
  • the height of the sheet convex portion in the second region is relatively low, the accommodation space between the sheet convex portions is reduced, and the stool accommodated in the first region can be prevented from flowing into the second region.
  • many stool can be accommodated between the sheet
  • Such an absorbent article As for the pitch of the sheet convex part of the 1st field, it is desirable that it is longer than the pitch of the sheet convex part of the 2nd field.
  • the pitch of the sheet projections in the first region is longer than the pitch of the sheet projections in the second region, the space between the sheet projections in the first region is widened, and a stool accommodating space can be formed widely. Therefore, the stool discharged on the top sheet is accommodated between the sheet convex portions and hardly remains on the sheet convex portions. Stool can be kept from touching the wearer's skin and the wearing feeling can be improved. Moreover, many stool can be hold
  • Such an absorbent article It is desirable that a welded portion in which fibers constituting the top sheet are welded is formed at the edge of the opening.
  • the welded portion is formed at the edge of the opening, the strength of the opening is increased and the opening shape is easily maintained. Therefore, the excretion pullability can be maintained.
  • the absorber has an absorption convexity protruding between the skin facing surface side and an absorption concave portion provided between the absorption convexity, It is desirable that the opening of the first region is disposed in a region overlapping with the absorption convex portion.
  • the distance between the opening and the absorber is short, and the bodily fluid drawn through the opening can be quickly absorbed by the absorber. Therefore, the excretion of the excrement can be improved.
  • the absorber has an absorption convexity protruding between the skin facing surface side and an absorption concave portion provided between the absorption convexity,
  • the opening of the first region is preferably disposed in a region overlapping with the absorption recess.
  • a space for storing feces can be formed on the non-skin facing surface side of the opening, and excreta drawn through the opening can be drawn into the space. Therefore, the excretion of the excrement can be improved.
  • the sheet convex portion has a convex wall portion extending to the skin facing surface side, It is preferable that the rising angle of the convex wall portion in the first region is larger than the rising angle of the convex wall portion in the second region.
  • the rising angle of the convex wall portion of the first region is larger than the rising angle of the convex wall portion of the second region, and the convex wall portion of the first region has a relatively steep slope. Therefore, the feces are held with the excrement accommodated between the sheet convex portions in the first region, and the excrement once accommodated can be prevented from slipping out between the sheet convex portions.
  • the rising angle of the convex wall portion of the second region is smaller than the rising angle of the convex wall portion of the first region, and the convex wall portion of the second region has a relatively gentle slope.
  • the second region is disposed at least in the crotch region.
  • the crotch region is in close contact with the wearer's skin compared to the rear waistline region. Since the convex wall portion of the second region is gently inclined, even if the second region is in close contact with the skin, the contact of the sheet convex portion with the skin can be reduced.
  • the top sheet has fibers, A space is formed between the sheet convex portion and the absorber, As for the fiber in the said convex wall part, it is desirable to have many fibers orientated along the thickness direction of the said top sheet rather than the fiber orientated along the said front-back direction and the said width direction.
  • the sheet convex part is not easily crushed, the space on the non-skin facing surface side of the sheet convex part is maintained, the contact with the skin becomes soft, and the wearer can obtain a fluffy feel.
  • the fiber by a convex wall part contains many fibers orientated in the thickness direction, it is easy to guide a bodily fluid in the thickness direction by a convex wall part. Therefore, even if it is a case where the height of a sheet
  • Such an absorbent article Between the sheet convex portions of the first region, a bottom portion extending in the front-rear direction and the width direction, and an intermediate portion protruding to the skin facing surface side from the bottom portion are provided, As for the top part of the above-mentioned middle part, it is desirable to be located in the non-skin opposing surface side rather than the top part of the above-mentioned sheet convex part of the 1st field.
  • the intermediate part is provided between the sheet convex parts in the first region, the excrement in the space between the sheet convex parts is difficult to diffuse in the plane direction including the front-rear direction and the width direction. Therefore, it is possible to quickly guide the stool toward the absorber and to suppress an increase in the area where the stool adheres to the skin.
  • the waistline holding portion that extends along the width direction and holds the absorbent article on a wearer's body, It is preferable that the rear end edge of the first region is located in front of the waistline holding portion.
  • the waistline holding part is an area for holding the absorbent article on the body, and is easily adhered to the body. Since the first region and the waistline holding portion are separated from each other, it is easy to maintain the state where the stool accommodated between the sheet convex portions of the first region is separated from the wearer's skin. Moreover, in the structure where the sheet convex part of the first region is higher than the sheet convex part of the second region, the sheet convex part of the second region is difficult to adhere to the skin, and the crotch region by the sheet convex part of the second region Can be suppressed.
  • Such an absorbent article Between the sheet convex portions, has a groove wall portion extending to the non-skin facing surface side, The opening is preferably provided in the groove wall.
  • the opening is formed in the groove wall portion extending to the non-skin facing surface side, a space is easily formed between the absorber disposed on the non-skin facing surface side of the top sheet and the opening.
  • excrement that has passed through the top sheet can be temporarily held, and the pullability can be improved.
  • the sheet convex portions in the first region are preferably arranged in a staggered manner.
  • the space between the convex portions of the sheet is not continuous in the front-rear direction or continuous in the width direction, the spread of feces in the plane direction can be suppressed.
  • the sheet convex portion of the first region is along the front-rear direction, It is desirable that a dividing portion that divides a space extending in the front-rear direction between the sheet convex portions is provided between the sheet convex portions in the first region.
  • the dividing part for dividing the space extending in the front-rear direction is provided, it is possible to suppress the stool accommodated in the sheet recess from spreading in the front-rear direction.
  • the height of the sheet convex portion is 0.3 mm or more and 10.0 mm or less, As for the pitch of the sheet convex part, it is desirable that it is 0.3 mm or more and 10.0 mm or less.
  • the sheet convex portion configured as described above, it is possible to suppress a sense of discomfort from the appearance due to the sheet convex portion being too conspicuous, and it is easy for the wearing assistant to obtain a sense of security. Moreover, since a sheet
  • the outer edge of the top sheet is located on the inner side in the width direction than the outer edge of the absorber,
  • An auxiliary sheet located on the skin facing surface side of the absorber is provided on the outer side in the width direction than the outer edge of the absorber,
  • the auxiliary sheet and the top sheet are made of nonwoven fabric,
  • the inter-fiber distance of the auxiliary sheet is preferably longer than the inter-fiber distance of the top sheet.
  • auxiliary sheet Since the distance between the fibers of the auxiliary sheet is relatively long, it is easy to draw body fluid by the auxiliary sheet. Since an auxiliary sheet with higher pullability is arranged on the outer side in the width direction than the outer edge of the top sheet, the excrement diffused to the outer side in the width direction beyond the top sheet is drawn into the absorber by the auxiliary sheet. In addition, leakage of excrement can be suppressed.
  • Such an absorbent article A pair of three-dimensional gathers arranged on both outer sides in the width direction from the center in the width direction of the absorbent article, In the state where the absorbent article is stretched, it is desirable that the outer edge of the top sheet is located on the outer side in the width direction than the inner edge of the three-dimensional gather.
  • the outer edge of the top sheet is positioned outside in the width direction from the inner edge of the three-dimensional gather. Therefore, in the state before use of the absorbent article, the entire area between the inner edges of the three-dimensional gather. A top sheet is placed.
  • the wearing assistant obtains a sense of security with respect to the absorption performance by visually recognizing the sheet convex portion and the opening of the top sheet, and can feel a wide sense of the arrangement area of the top sheet, thereby obtaining a sense of security.
  • FIG. 1 is a developed plan view of a disposable diaper 10 according to this embodiment.
  • the development plan view shown in Drawing 1 is a figure of the extension state which extended elastic parts, such as solid gathers and a waist elastic part, to the state where the top sheet 50, side sheet 70, etc. which constitute a disposable diaper are not formed.
  • FIG. 2 is a sectional view taken along line AA shown in FIG.
  • the disposable diaper 10 has a front waistline region 20, a crotch region 25, and a back waistline region 30.
  • the front waistline region 20 is a portion in contact with the wearer's front waistline portion (abdomen portion).
  • the rear waistline region 30 is a portion in contact with the rear waistline portion (back portion) of the wearer.
  • the crotch region 25 is located between the front waistline region 20 and the back waistline region 30.
  • the direction from the front waistline region 20 to the rear waistline region 30 is referred to as the front-rear direction L
  • the direction orthogonal to the front-rear direction L is referred to as the width direction W
  • the wearer's skin facing surface side T1 is not
  • a direction extending to the skin facing surface side T2 is referred to as a thickness direction T.
  • the disposable diaper 10 has an absorber 40.
  • the absorber 40 straddles the crotch region 25 and extends to at least one of the front waistline region 20 and the rear waistline region 30.
  • the absorber 40 of the present embodiment is disposed across the front waistline region 20, the crotch region 25, and the rear waistline region 30.
  • the absorber 40 has an absorption core 40a and a core wrap 40b.
  • a first low weight portion 41 extending from the outer edge (outer end in the width direction) of the absorbent core 40a toward the inner side in the width direction W is formed.
  • the first low weight portions 41 are respectively disposed on both outer edges of the absorbent core 40a, and are disposed with an interval in the front-rear direction L.
  • a second low weight portion 42 is formed extending forward from the rear edge of the absorbent core 40a. The length in the width direction of the second low weight portion 42 is formed shorter toward the front side.
  • the first low weight portion 41 and the second low weight portion 42 are portions where the weight of the absorbent material is lower than the surrounding absorbent core.
  • the first low weight part 41 and the second low weight part 42 of the present embodiment are notches. In addition, the 1st low weight part 41 and the 2nd low weight part 42 do not need to be provided.
  • a liquid-permeable top sheet 50 is provided on the skin facing surface side T1 of the absorber 40.
  • the top sheet 50 constitutes a skin contact surface of the disposable diaper 10 and contacts the wearer.
  • the top sheet 50 is disposed across the front waistline region 20, the crotch region 25, and the rear waistline region 30.
  • the top sheet 50 has fibers, and can be specifically constituted by a nonwoven fabric.
  • the outer edge of the top sheet 50 is located on the inner side in the width direction than the outer edge of the absorber 40. The top sheet 50 will be described in detail later.
  • An auxiliary sheet 45 is provided between the top sheet 50 and the absorber 40 (see FIG. 2).
  • the outer edge of the auxiliary sheet 45 is located outside the outer edge of the top sheet 50 in the width direction W.
  • the auxiliary sheet covers the skin facing surface side of the absorbent body 40 in a region outside the top sheet 50 in the width direction.
  • the auxiliary sheet 45 is made of a nonwoven fabric.
  • the inter-fiber distance of the auxiliary sheet 45 is longer than the inter-fiber distance of the top sheet 50. Since the inter-fiber distance of the auxiliary sheet is relatively long, it is easy to draw body fluid by the auxiliary sheet.
  • the auxiliary sheet with higher retractability is arranged on the outer side in the width direction than the outer edge of the top sheet, the stool diffused to the outer side in the width direction beyond the top sheet can be drawn into the absorber side by the auxiliary sheet. It can suppress the leakage of stool.
  • the auxiliary sheet may not be provided.
  • the top sheet is provided so as to cover the outer edge of the absorber.
  • the interfiber distance can be measured using a mercury porosimeter (manufactured by Shimadzu Corporation) according to the mercury intrusion method (JIS R 1655).
  • JIS R 1655 the mercury intrusion method
  • the pressure applied to mercury when mercury is injected between the constituent fibers of the fiber structure (top sheet and auxiliary sheet) that is the object to be measured, and the space between the constituent fibers of the fiber structure By measuring the volume of mercury pushed in, information on the structure of the fiber structure can be obtained.
  • the interfiber distance of the fiber structure can be measured according to the following procedure using a mercury porosimeter.
  • a fiber structure which is an object to be measured, is cut into 24 mm ⁇ 15 mm to produce a measurement sample. Three samples for measurement are prepared.
  • the pore diameter D ( ⁇ m) of the pores (that is, the interfiber distance of the fiber structure ( ⁇ m)) is calculated, and the relationship between the pore diameter D and the pore volume is calculated as follows. Obtained as a distribution curve (differential / integral curve) of pore diameter D.
  • the various measurement conditions in the following formula (1) are a mercury surface tension of 0.483 N / m, a contact angle of 130 °, and a mercury pressure of 0 to 414 MPa (absolute pressure).
  • D -4 ⁇ cos ⁇ / P (In the formula, D represents the pore diameter (distance between fibers), ⁇ represents the surface tension of mercury, ⁇ represents the contact angle, and P represents the pressure.)
  • the non-skin facing surface side T2 of the absorber 40 is provided with a liquid-impermeable back sheet 60a.
  • An exterior sheet 60 is provided on the non-skin facing surface side of the back sheet.
  • a pair of three-dimensional gathers 80 are disposed on both outer sides in the width direction from the center in the width direction of the disposable diaper 10.
  • the three-dimensional gather 80 is a standing gather that can stand on the wearer side.
  • the three-dimensional gather 80 includes a side sheet 70 and a side elastic member 71 as an elastic member.
  • a side elastic member 71 that expands and contracts in the front-rear direction L is disposed on the inner edge side of the side seat 70.
  • the pair of three-dimensional gathers 80 is substantially line symmetric with the center in the width direction of the disposable diaper as the axis of symmetry.
  • Each three-dimensional gather 80 has a side elastic member 71 that expands and contracts in the front-rear direction, a standing portion 83 that can stand on the wearer side, and is positioned on the outer side in the width direction from the standing portion 83, and the standing portion 83 stands up.
  • the front end edge of the standing portion 83 coincides with the rear end edge of the second fixing portion 82 disposed in the front waistline region 20, and the rear end edge of the standing portion 83 is the first fixing portion disposed in the rear waistline region 30. Matches the front edge of 81.
  • the side sheet 70 covers the outer edge of the top sheet 50 and the outer edge of the auxiliary sheet 45.
  • the inner edge of the three-dimensional gather (the inner edge of the side sheet 70) is located on the inner side in the width direction than the outer edge of the top sheet.
  • the outer edge of the top sheet is positioned outside in the width direction from the inner edge of the three-dimensional gather. Therefore, in the state before use of the absorbent article, the entire area between the inner edges of the three-dimensional gather.
  • a top sheet is placed.
  • the wearing assistant gains a sense of security with respect to the absorption performance by visually recognizing the top sheet, feels a wide area of the top sheet, and can feel more secure.
  • the side sheet 70 is joined to the top sheet 50 or the auxiliary sheet 45 at the first fixing part 81 and the second fixing part 82.
  • the upright portions 83 are provided between the second fixed portions 82 in the front-rear direction L, and are not joined to the topsheet 50, so that they can rise from the topsheet 50 or the like.
  • the standing portion 83 stands on the wearer side with the side elastic member contracted.
  • the standing portion 83 stands on the wearer side in a state where the disposable diaper is worn.
  • the standing portion 83 has a contraction region 84 in which the side elastic member 71 is disposed so as to be contractible.
  • the contraction region 84 is a region joined in a state where the side elastic member 71 is extended in an extended state where the disposable diaper is extended.
  • the contraction region 84 is a region other than the region where the side elastic member 71 is not disposed in the standing portion 83, the region where the non-stretched side elastic member 71 is bonded, and the side elastic member 71 is bonded to the side seat 70. It is a concept that excludes areas that are not.
  • the three-dimensional gather 80 forms a wall that rises on the skin facing surface side T1 at the outer edge of the absorbent body 40, and prevents lateral leakage of excrement.
  • the outer periphery of the disposable diaper 10 is formed with a leg opening 13 disposed around the wearer's leg.
  • the disposable diaper 10 is provided with a pair of leg stretchable parts 75 that are disposed on the inner side in the width direction than the leg opening 13 and can be stretched in the front-rear direction L.
  • the leg expansion / contraction part 75 is arrange
  • Fastening tape 90 is a pair and extends outward in the width direction W from the side sheet 70 in the rear waistline region 30.
  • the fastening tape 90 is attached to the side sheet 70.
  • the fastening tape 90 has a fastening portion 91 that fastens to the target portion 95 in the front waistline region 20.
  • the fastening part 91 is, for example, a part provided with an engagement hook.
  • the fastening tape 90 is fastened to the target portion 95 of the front waistline region 20 to hold the disposable diaper 10 on the wearer's body.
  • a region between the fastening portions 91 of the pair of fastening tapes is a region held by the body when worn, and constitutes a waistline holding portion.
  • the target portion 95 is provided on the non-skin facing surface side T2 of the exterior sheet 60 in the front waistline region 20.
  • the target portion 95 is configured so that the engaging hook of the fastening tape 90 is hooked, and functions as a loop of a hook and loop locking system.
  • the disposable diaper may be a pants-type diaper that does not have the fastening tape 90 and the target portion 95.
  • the region between the side joints that join the front waistline region and the rear waistline region constitutes the waistline holding portion.
  • the disposable diaper 10 has a waist stretchable portion 85 that can be stretched in the width direction.
  • the waist stretchable portion 85 is disposed in the rear waistline region 30.
  • the waist stretchable portion 85 is disposed between the pair of fastening tapes 90 in the width direction, and contracts between the fastening tapes 90 in the width direction.
  • the waist stretchable part 85 may not be provided.
  • FIG. 3 is an enlarged plan view of the top sheet.
  • the top sheet 50 includes a sheet convex portion 51 protruding to the skin facing surface side T1, and a sheet concave portion 52 provided between the sheet convex portions 51. 1 and 2, the sheet convex portion 51 and the sheet concave portion 52 are omitted.
  • the sheet convex part 51 protrudes to the skin facing surface side T1 of the disposable diaper 10, and the sheet concave part 52 is a space between the sheet convex parts 51.
  • the sheet convex portion 51 has a conical shape and has a tapered shape toward the skin facing surface side T1.
  • the top of the sheet convex portion 51 is rounded.
  • the sheet convex portions 51 are arranged at intervals in the front-rear direction L and the width direction W, and are arranged in a staggered manner in plan view.
  • the zigzag pattern is a state in which the staggered pattern is not arranged in the front-rear direction L and the width direction W but is shifted in at least one of the front-rear direction L and the width direction W.
  • the sheet convex portion 51 has a convex wall portion 59 extending in the thickness direction T. The convex wall portion 59 extends from the top portion of the sheet convex portion 51 to the bottom portion 53.
  • the sheet recess 52 is a space sandwiched between the sheet protrusions 51. More specifically, the sheet concave portion 52 is a space surrounded by the convex wall portion 59 and the bottom portion 53.
  • the surface of the sheet recess 52 on the non-skin facing surface side T2 is the bottom 53, and the skin facing surface of the sheet recess 52 is a virtual surface that connects the tops of the convex wall portions 59 to each other. 4 and 5, the region of the sheet recess 52 is indicated by hatching.
  • the bottom 53 extends in the front-rear direction L and the width direction W.
  • An opening 54 is formed between the sheet convex portions 51.
  • the opening 54 passes through the bottom 53 in the thickness direction.
  • the sheet convex part 51, the sheet concave part 52, the bottom part 53, and the opening 54 are formed over the entire surface of the top sheet 50.
  • the sheet convex portion 51, the sheet concave portion 52, the bottom portion 53, and the opening 54 may be formed only on a part of the top sheet 50.
  • the top sheet 50 has a first region R1 and a second region R2.
  • the first region R1 and the second region R2 are shown with different oblique lines.
  • the first region R1 is disposed at least in the rear waistline region 30. Therefore, mainly feces are discharged on the first region R1.
  • the second region R2 is disposed on the front side of the first region R1 and at least in the crotch region 25. Therefore, urine is mainly discharged on the second region R2.
  • the second region R2 only needs to be disposed at least in front of the first region R1, but the second region R2 of the present embodiment is disposed in the entire region other than the first region R1 of the topsheet 50.
  • the first region R1 is surrounded by the second region R2 in plan view.
  • the sheet convex portion 51 includes a first convex portion 511 that is the sheet convex portion 51 in the first region R1, and a second convex portion 512 that is the sheet convex portion 51 in the second region R2.
  • the sheet recess 52 includes a first recess 521 that is the sheet recess 52 in the first region R1, and a second recess 522 that is the sheet recess 52 in the second region R2.
  • the bottom portion 53 includes a first bottom portion 531 that is the bottom portion 53 of the first region R1, and a second bottom portion 532 that is the bottom portion 53 of the second region R2.
  • the opening 54 includes a first opening 541 that is the opening 54 of the first region R1, and a second opening 542 that is the opening 54 of the second region R2.
  • the opening 54 may be provided at least in the first region R1.
  • the shape of the top sheet 50 in the first region R1 is different from the shape of the top sheet 50 in the second region R2. More specifically, at least the shape of the first convex portion 511 and the shape of the second convex portion 512 are different.
  • the height 511H of the first convex portion 511 and the height 512H of the second convex portion 512 are different, and the pitch P1 of the first convex portion 511 and the pitch P2 of the second convex portion 512 are different. Different. Since the shape of the 1st convex part 511 and the shape of the 2nd convex part 512 differ, a mounting assistant becomes easy to recognize 1st area
  • a wear assistant is the performance of the top sheet arrange
  • the shape of the first recess 521 and the shape of the second recess 522 may be different.
  • the configuration in which the shape of the sheet recess 52 is different includes the length in the width direction W of the sheet recess 52, the length in the front-rear direction L of the sheet recess 52, the shape of the opening 54 formed in the sheet recess 52, and the position of the opening 54. At least a part of the configuration is different.
  • a first convex portion 511, a first concave portion 521, an intermediate portion 58, a first bottom portion 531 and a first opening 541 are formed in the top sheet 50 of the first region R1.
  • the intermediate part 58 is provided between the adjacent first convex parts 511.
  • the height of the intermediate portion 58 is lower than the height of the first convex portion 511.
  • the intermediate portion 58 protrudes to the skin facing surface side T1 from the first bottom portion 531.
  • the top part of the intermediate part 58 is located closer to the non-skin facing surface side T2 than the top part of the first convex part 511.
  • a first bottom portion 531 is disposed around the intermediate portion 58. In the cross section at the position where the intermediate portion 58 is provided (the cross section shown in FIG.
  • each portion is adjacent to the top sheet 50 in the order of the first convex portion 511, the first concave portion 521, and the first convex portion 511.
  • the first bottom portion 531, the first opening 541, the first bottom portion 531, the intermediate portion 58, the first bottom portion 531, the first opening 541, and the first bottom portion 531 are arranged in this order.
  • the intermediate portion 58 may not be provided, and the first convex portion 511 may be provided instead of the intermediate portion 58.
  • the second convex portion 512 and the second concave portion 522 are formed on the top sheet 50 in the second region R2.
  • the intermediate portion is not formed on the top sheet 50 in the second region R2.
  • the second convex portions 512 are arranged in a staggered pattern.
  • the top sheet 50 is provided with the respective portions adjacent to each other in the order of the second convex portion 512, the second concave portion 522, and the second convex portion 512, Within the second recess 522, the respective parts are provided adjacent to each other in the order of the second bottom 532, the second opening 542, and the second bottom 532.
  • top sheet 50 is provided with a plurality of sheet recesses 52 and sheet protrusions 51, a space is formed between the top sheet 50 and the absorber 40.
  • body fluid drawn by the top sheet 50 can be drawn into the space, and excreta can be quickly absorbed by the absorber, on the top sheet. It can suppress that a bodily fluid remains.
  • the stool When the stool is discharged on the first region R1 in the top sheet 50 configured as described above, the stool is accommodated in the first recesses 521 between the first protrusions 511.
  • the stool is pinched by the first convex portion 511 and stays in the first concave portion 521.
  • the contact area between the wearer and the stool is reduced. Since the stool is sandwiched between the walls of the first convex portion 511, once the stool accommodated between the first convex portions 511 touches the skin, the stool comes out from between the first convex portions and reattaches to the wearer. Can be suppressed. Therefore, it can suppress that the area where stool adheres to skin increases.
  • the excrement in the space between the first convex portions 511 is difficult to diffuse in the front-rear direction L and the width direction W.
  • the first convex portions 511 are arranged in a staggered pattern, and the first concave portions 521 are divided in the front-rear direction L and the width direction W. Therefore, the stool accommodated in the first recess 521 is difficult to diffuse along the front-rear direction L and the width direction W.
  • the soft stool containing a lot of moisture moves to the absorber 40 through the first opening 541 of the first recess 521.
  • the urine When the urine is discharged onto the second region R2 in the top sheet 50 configured as described above, the urine is inclined with respect to the front-rear direction L via the second concave portion 522 between the second convex portions 512. And diffuse in an oblique direction inclined with respect to the width direction W. Urine has high fluidity and moves to the absorber 40 through the second opening 542 formed in the second bottom 532 while diffusing in the plane direction along the second bottom 532. In this way, urine is diffused in the second region R2, urine is rapidly transferred to the absorber, and soft stool and body fluid are transferred to the absorber 40 in the first region R1, and the solid stool is maintained.
  • the first region R1 and the second region R2 of the topsheet can appropriately absorb urine and feces having different properties.
  • the height of the top sheet 50 in the first region R1 (the length from the first bottom portion 531 to the top portion of the first convex portion 511 and corresponding to the height 511H of the first convex portion 511)
  • R1H is the second region
  • the height of the top sheet 50 in R2 is higher than R2H (the length from the second bottom 532 to the top of the second convex portion 512, which corresponds to the height 512H of the second convex portion 512). Since the height of the top sheet 50 in the first region R1 is relatively high, the skin of the wearer and the absorber 40 can be separated in the first region R1, and the body fluid absorbed by the absorber 40 is on the skin side. It becomes difficult to return to, and it becomes easy to keep a wearer's skin in a dry state.
  • the height of the first convex portion 511 (the length from the first bottom portion 531 to the top portion of the first convex portion 511) 511H is the height of the second convex portion 512 (the top portion of the second convex portion 512 from the second bottom portion 532). Length up to) is higher than 512H.
  • the stool discharged on the first region R1 is accommodated in the first concave portion 521 between the first convex portions 511. At this time, since the height 511H of the first convex portion 511 is higher than the height 512H of the second convex portion 512, the wall formed by the first convex portion 511 can be formed relatively high.
  • the stool once accommodated in the first concave portion 521 is easily held by the first convex portion 511.
  • the wearer's skin touches the surface of the stool accommodated in the first recess 521 the stool continues to be held in the first recess 521, and the stool comes out from the first recess 521 to the wearer. Reattachment can be prevented.
  • the height of the first convex portion 511 is relatively high, the gap between the skin and the absorbent body 40 is increased in the first region R1. Breathability becomes high, and the air inside the diaper flows out to the outside of the diaper and can suppress the stuffiness. Further, before the stool is accommodated between the first convex portions 511, the body pressure is applied to the first region R1 and the first convex portion 511 is collapsed, and the body pressure is not applied to the first region R1. The thickness of the top sheet 50 changes in the state where the first convex portion 511 stands.
  • the height of the first convex portion 511 is relatively high, the difference in thickness of the top sheet 50 due to the presence or absence of body pressure increases, and air can flow more easily, and an effect of suppressing stuffiness can be easily obtained.
  • many stool can be accommodated between the 1st convex parts 511, and it becomes easy for a stool to pass the opening 54 by dead weight, and the quantity of the stool which leads to the absorber 40 through the opening 54 can be increased. .
  • the touch in the second region R2 can be improved.
  • the crotch region 25 is in contact with the excretion opening of the wearer.
  • the crotch region 25 is in close contact with the wearer's skin compared to the rear waistline region 30. Since the height 512H of the second convex portion 512 of the second region R2 corresponding to the crotch region 25 is suppressed, the second convex portion 512 even when the crotch region where the second region R2 is located is in close contact with the skin. Can reduce the hit of the skin.
  • the touch is improved and the wearer's wearing feeling is improved.
  • the area of the second region R2 may be larger than the area of the first region R1.
  • a feeling of wearing can be further improved by providing a wide area of the second region R2 suitable for the touch.
  • the height of the 2nd convex part 512 is comparatively low, the accommodation space of the 2nd recessed part 522 becomes small, and it can suppress that the stool accommodated in 1st area
  • the pitch P1 of the first protrusions 511 is longer than the pitch P2 of the second protrusions 512.
  • the space between the 1st convex parts 511 becomes wide, and the accommodation space of a stool can be formed widely. Therefore, the stool discharged on the top sheet 50 is accommodated between the first convex portions 511 and hardly remains on the first convex portions 511. Stool can be kept from touching the wearer's skin and the wearing feeling can be improved. Moreover, many stool can be hold
  • moisture content in a stool can be rapidly transferred to an absorber, and it can suppress that the soft stool containing many water
  • region which mainly absorbs urine can be made into a smooth tactile sensation
  • region which mainly absorbs feces can be made into the tactile sensation with the thickness which absorbs firmly.
  • the pitch of the first convex portions is not constant, and the pitch between the first convex portions arranged with the intermediate portion interposed therebetween is longer than the pitch between the first convex portions not arranged with the intermediate portion interposed therebetween. .
  • the pitch of the longest 1st convex part should just be comprised longer than the pitch of the longest 2nd convex part.
  • the height of the sheet convex portion 511 is 0.3 mm or more and 10.0 mm or less, more preferably 0.4 mm or more and 6.0 mm or less, and further preferably 0.5 mm or more and 4.5 mm. It is as follows.
  • the pitch of the sheet convex portions 51 is 0.3 mm or more and 10.0 mm or less, more preferably 0.5 mm or more and 5.0 mm or less, and further preferably 1.0 mm or more and 4.5 mm. It is as follows. According to the sheet convex portion 51 configured as described above, an uncomfortable appearance due to the fact that the sheet convex portion 51 is too conspicuous is suppressed, and it is easy for the wearing assistant to obtain a sense of security. Further, since the sheet convex portion 51 can be visually recognized, it is easy for the wearing assistant to obtain a sense of security with respect to the absorption performance of the sheet convex portion 51.
  • the dimension of the opening is 1.0 mm or more and 8.0 mm or less, more preferably 1.5 mm or more and 5.0 mm or less.
  • the larger the opening the better the stool permeability, but there is a possibility that the stool after absorption may return from the opening, so depending on the interval and width of the sheet protrusion, the interval and width of the sheet protrusion It is preferable that the size is close (the difference is 2 mm or less).
  • the second recess 522 is continuously arranged from the front edge R1F of the first region R1 to the front edge of the top sheet 50. Since the second recess 522 is continuous, body fluid can be smoothly diffused from the front edge R1F of the first region R1 to the front edge of the top sheet 50, and urine can be quickly transferred to the absorber 40 over a wide area. .
  • the first recess 521 and the second recess 522 are continuous in the front-rear direction L at the boundary between the first region R1 and the second region R2. Since the space in the first recess 521 and the space in the second recess 522 communicate with each other, excrement can be smoothly diffused between the first region R1 and the second region R2. For example, even when the wearing position of the absorbent article is shifted and the stool is discharged into the second region R2, the stool may be guided to the first region R1, and the stool may be accommodated and absorbed by the first region R1. it can.
  • the rising angle ⁇ (see FIG. 4) of the first convex wall portion 591 is larger than the rising angle ⁇ (see FIG. 5) of the second convex wall portion 592.
  • the rising angle ⁇ of the first convex wall 591 is larger than the rising angle ⁇ of the second convex wall 592, and the first convex wall 591 has a relatively steep inclination. Therefore, it is easy to hold the excrement accommodated in the first concave portion 521 by the first convex portion 511, and the excrement once accommodated can be prevented from coming out of the first concave portion 521.
  • the rising angle ⁇ of the second convex wall portion 592 is smaller than the rising angle ⁇ of the first convex wall portion 591, and the second convex wall portion 592 has a relatively gentle slope.
  • the second region R2 is disposed at least in the crotch region 25.
  • the crotch region 25 is in close contact with the wearer's skin compared to the rear waistline region 30. Since the convex wall portion of the second region R2 has a gentle slope, even if the crotch region where the second region R2 is located is in close contact with the skin, the contact with the skin by the second convex portion 512 can be reduced. Can do.
  • the rising angle of the convex wall 59 can be measured by the following method. Using a cold spray or the like, the sheet to be measured is taken out from the absorbent article, and the convex portion of the measurement location and its periphery are cut in parallel in the width direction. The cutting is performed with a sharp blade (for example, a cutter blade) so that the projections are not crushed as much as possible. With the top sheet placed on a horizontal surface so that the cut sheet does not wrinkle, the cross section is magnified 20 times with a microscope and the cross section is photographed. About the cross section of imaging
  • a sharp blade for example, a cutter blade
  • the fibers in the first convex wall portion 591 and the fibers in the second convex wall portion 592 have more fibers oriented along the thickness direction of the top sheet than fibers oriented along the front-rear direction and the width direction. According to such an absorbent article, it is easy to maintain the space on the non-skin facing surface side of the sheet convex portion 51, the contact of the sheet convex portion 51 with the skin becomes soft, and the wearer can obtain a fluffy feel. Can do. In addition, the body fluid is easily guided in the thickness direction T by the fibers oriented in the thickness direction T. Therefore, even when the height of the sheet convex portion 51 is configured to be high, the body fluid in the convex wall portion 59 can be quickly guided to the absorber side.
  • the fiber orientation of the convex wall is oriented in the thickness direction, in the state where the sheet convex portion and the sheet concave portion are formed, the fiber is in the thickness direction (from the skin surface side to the non-skin surface side), The orientation is in the range of +45 degrees to -45 degrees.
  • the fiber orientation was measured using a digital microscope VHX-100 manufactured by Keyence Corporation, and the following measurement method was used. (1) Set the sample on the observation table so that the surface of the convex wall portion can be observed. (2) Focus the lens on the frontmost fiber of the sample except for the irregularly protruding fiber. ) Create a sample 3D image on the PC screen.
  • the 3D image is converted into a 2D image, and (5) a plurality of parallel lines are drawn on the screen to equally divide the thickness direction of the convex wall portion in the measurement range.
  • a plurality of parallel lines are drawn on the screen to equally divide the thickness direction of the convex wall portion in the measurement range.
  • the number of fibers oriented in the respective direction is measured, and (7) Fibers oriented in the thickness direction with respect to the total number of fibers within the set range It can be measured and calculated by calculating the ratio of the number of fibers and the ratio of the number of fibers in the fiber orientation toward the direction orthogonal to the thickness direction.
  • the bending rigidity of the first region R1 is higher than that of the second region R2.
  • the bending rigidity is measured using KES FB-2 manufactured by Kato Tech Co., Ltd.
  • a test piece having a size of 50 mm ⁇ 100 mm is prepared, one end of the test piece in the longitudinal direction is sandwiched between one of the pair of chucks, and the other end in the longitudinal direction of the test piece is sandwiched between the other chucks.
  • One chuck rotates around the other chuck, and the bending rigidity of the test piece bent by this is measured with a torque detector.
  • Five sets of test pieces are prepared, and the average value of the measured values is defined as bending rigidity.
  • the front edge R1F of the first region R1 is located behind the center of the disposable diaper 10 in the front-rear direction L, and is located behind the bending guide portion of the absorber 40.
  • the bending guide part is for inducing bending based on a fold line along the width direction of the absorber 40, and is arranged along the notch of the absorber 40, an emboss line extending in the width direction W, and the width direction W.
  • the embossed assembly can be exemplified, and is a portion provided with a difference in rigidity so that the absorber is bent with the portion as a base point.
  • the bending guide part of the present embodiment is constituted by a pair of first low weight parts 41.
  • the bending guide portion is disposed within a range in which the contraction region 84 of the three-dimensional gather is disposed in the front-rear direction.
  • the range in which the contraction region 84 is arranged in the front-rear direction L is easily contracted in the front-rear direction L due to contraction of the contraction region 84.
  • the first region R1 is disposed between the pair of first fixing portions 81 in the width direction W.
  • the outer edge of the first region R1 is located on the inner side in the width direction than the first fixing portion 81.
  • the rigidity of the top sheet 50 between the first fixing portions 81 in the rear waistline region 30 is increased, and the height of the standing portion 83 is easily secured. Accordingly, it is possible to prevent side leakage of stool in the rear waistline region 30.
  • the standing portion 83 is easily raised, the top sheet 50 is not easily covered with the three-dimensional gather 80, and the discharged stool is easily guided into the first recess 521.
  • the rear end edge R1R of the first region R1 is located behind the rear end edge of the contraction region 84.
  • the first region R1 is disposed across the rear edge of the contraction region 84 in the front-rear direction L.
  • the rigidity in the vicinity of the rear end edge of the contraction region that becomes the rising base point of the three-dimensional gather increases. By increasing the rigidity of the rising base point of the solid gather, it becomes easy to ensure the height of the solid gather. More specifically, since the second fixing portion 82 side of the standing portion 83 is close to the rising base point, it is difficult to secure the rising height as compared with the center of the rising portion 83 in the front-rear direction.
  • the first region R1 is disposed behind the contraction region 84, and the rigidity of the top sheet 50 on the second fixing portion 82 side in the rear waistline region 30 is increased. Since the rigidity of the top sheet 50 is increased, the upright portion 83 is easily raised and the height of the upright portion 83 is easily secured. Accordingly, it is possible to prevent side leakage of stool in the rear waist area. In addition, by ensuring the height of the three-dimensional gather, it is possible to prevent the top sheet from being covered with the three-dimensional gather and to continue to exhibit the function of guiding the discharged stool into the first recess 521.
  • the rear edge R1R of the first region R1 is located in front of the waistline holding part and is separated from the waistline holding part.
  • the waistline holding part is an area between the pair of fastening parts 91.
  • the waistline holding portion is a region that is in close contact with the body in a wearing state in which the fastening portion 91 is fastened to the front waistline region 20. Since the region between the pair of fastening portions 91 and the first region R1 are separated from each other, it is easy to realize a state in which the stool accommodated in the first recess 521 is separated from the wearer's skin.
  • the rear edge R1R of the first region R1 is located in front of the waist stretchable portion 85 and is separated from the region where the waist stretchable portion 85 is disposed.
  • the region where the waist stretchable portion 85 is disposed is a region that is in close contact with the body in a worn state. Since the first region R1 is separated from the region where the waist stretchable portion 85 is disposed, it is easy to realize a state in which the stool accommodated in the first recess 521 is separated from the wearer's skin.
  • the sheet convex portion and the sheet concave portion can be formed by a shaping process for stretching the nonwoven fabric.
  • the shaping process can perform a first shaping process and a second shaping process.
  • the first shaping process the second convex portion 512, the second concave portion 522, the second bottom portion 532, and the second opening 542 are formed in a region corresponding to the entire region of the top sheet 50 in the width direction.
  • the second shaping process is performed after the first shaping process.
  • the first convex portion 511 is formed in the region corresponding to the first region R1, and the other regions are not processed. Specifically, in the region corresponding to the first region, some of the second convex portions 512 are further extended to form the first convex portions 511.
  • the second convex portions 512 that have not been subjected to the second shaping process constitute an intermediate portion 58.
  • the second bottom part 532 and the second opening 542 formed by the first shaping process the second bottom part 532 and the second opening 542 corresponding to the first region constitute the first bottom part 531 and the first opening 541. . That is, the second bottom portion 532 and the second opening 542 have the same configuration as the first bottom portion 531 and the first opening 541.
  • a welded portion may be formed at the edge of the opening.
  • the welded portion is a portion where fibers constituting the top sheet are welded. Since the welded portion is formed at the edge of the opening, the strength of the opening is increased and the opening shape is easily maintained. Therefore, the excretion pullability can be maintained.
  • FIG. 8 is a view schematically showing the top sheet 50 and the absorbent body 400 of the absorbent article according to the first modification.
  • the absorbent body 400 according to the modified example includes an absorption convex portion 401 protruding to the skin facing surface side T1, and an absorption concave portion 402 provided between the absorption convex portions 401.
  • the absorption concave portion 402 only needs to be recessed from the absorption convex portion 401.
  • the basis weight of the absorbent material of the absorption recess 402 may be lower than that of the absorption projection 401, and may be zero.
  • the first opening 541 is disposed in a region overlapping the absorption convex portion 401 and is disposed in a region overlapping the absorption concave portion 402. Since the absorption convex portion 401 and the first opening 541 overlap each other, the distance between the first opening 541 and the absorber 40 is short, and the body fluid drawn through the first opening 541 can be quickly absorbed by the absorber 40. In addition, the absorption recess 402 and the first opening 541 overlap to form a space for storing feces on the non-skin-facing surface side T2 of the first opening 541, and the excrement drawn through the first opening 541 can be formed in the space. Can be drawn into.
  • first opening 541 may be disposed in a region that does not overlap the absorption convex portion 401 or may be disposed in a region that does not overlap the absorption concave portion 402. Further, the second opening 542 may also be disposed in a region overlapping the absorption convex portion 401 and the absorption concave portion 402.
  • FIG. 9 is a cross-sectional view of the top sheet 500 in the absorbent article according to the second modification.
  • the top sheet 500 according to Modification 2 includes a groove wall portion 55 extending from the bottom 53 to the non-skin facing surface side T2, and a groove bottom portion 56 positioned on the non-skin facing surface side T2 from the groove wall portion 55 and extending in the planar direction. And having.
  • the opening 54 is formed in the groove wall portion 55. Since the opening 54 is formed in the groove wall portion 55, a space is easily formed between the absorber 40 and the opening 54. The space between the opening 54 and the absorber 40 can temporarily hold the excrement that has passed through the top sheet 50, thereby improving the retractability.
  • FIG. 10 is a cross-sectional view of the top sheet 501 in the absorbent article according to the third modification.
  • the first convex portion 511, the intermediate portion 58, and the first concave portion 521 extend in the front-rear direction.
  • a dividing portion 57 is provided between the first convex portions 511 in the width direction W.
  • the dividing part 57 is configured to divide a space extending in the front-rear direction of the first recess 521.
  • the top portion of the dividing portion 57 is located on the non-skin facing surface side T2 with respect to the top portion of the first convex portion 511, and is located on the skin facing surface side T1 with respect to the top portion of the intermediate portion 58.
  • the region on the skin facing surface side T1 of the space extending in the front-rear direction L of the first recess 521 (the region on the skin facing surface side T1 with respect to the dividing portion 57) is not divided in the front-rear direction L. It is connected to direction L.
  • the region on the non-skin facing surface side T2 of the space extending in the front-rear direction L of the first recess 521 (region where the dividing portion 57 is arranged) is divided in the front-rear direction L and is not continuous in the front-rear direction L. is there.
  • the dividing portion 57 is provided with an interval in the front-rear direction L.
  • the first recess 521 is discontinuous in the front-rear direction L at least partially.
  • the stool is accommodated in the first recess 521 between the first protrusions 511. Due to the portion where the first recess 521 is discontinuous in the front-rear direction L, it is possible to suppress the stool accommodated in the first recess 521 from diffusing in the front-rear direction L.
  • the excrement in the 1st recessed part 521 is easy to spread
  • “extending in the front-rear direction” may be a configuration having at least a certain range in the front-rear direction, and is inclined with respect to the front-rear direction so that an angle with respect to the front-rear direction is less than 45 degrees. However, it also includes a configuration extending in the width direction. Further, “extending in the width direction” may be a configuration having at least a certain range in the width direction, and extends in the front-rear direction while being inclined with respect to the width direction so that an angle with respect to the width direction is less than 45 degrees. The configuration is also included.
  • the wearing assistant can provide an absorbent article that recognizes the area from which the stool is discharged with respect to other areas and can obtain a sense of security during use.

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)

Abstract

L'invention concerne un article absorbant dans lequel les propriétés d'étirage en une région où les fèces sont évacuées peuvent être reconnues facilement, et qui est capable d'offrir un sentiment de sécurité pendant l'utilisation. Cet article absorbant comprend : un corps absorbant (40); et une feuille supérieure (50) qui est située plus vers le côté surface opposée à la peau que le corps absorbant, et qui vient en contact avec un porteur. La feuille supérieure comprend : des saillies de feuille (51) qui font saillie vers le côté de surface opposée à la peau; et des ouvertures (54) disposées entre les saillies de feuille. La feuille supérieure comprend : une première région (R1) disposée au moins dans une région de hanche arrière; et une seconde région (R2) disposée au moins dans une région d'entrejambe. La forme de la saillie de feuille dans la première région est différente de la forme de la saillie de feuille dans la seconde région. Les ouvertures sont disposées au moins dans la première région.
PCT/JP2017/037136 2016-10-24 2017-10-13 Article absorbant WO2018079302A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1020197014178A KR102537750B1 (ko) 2016-10-24 2017-10-13 흡수성 물품
AU2017349535A AU2017349535B2 (en) 2016-10-24 2017-10-13 Absorbent article
CN201780065590.8A CN109862859B (zh) 2016-10-24 2017-10-13 吸收性物品

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016-208164 2016-10-24
JP2016208164A JP6668217B2 (ja) 2016-10-24 2016-10-24 吸収性物品

Publications (1)

Publication Number Publication Date
WO2018079302A1 true WO2018079302A1 (fr) 2018-05-03

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PCT/JP2017/037136 WO2018079302A1 (fr) 2016-10-24 2017-10-13 Article absorbant

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JP (1) JP6668217B2 (fr)
KR (1) KR102537750B1 (fr)
CN (1) CN109862859B (fr)
AU (1) AU2017349535B2 (fr)
WO (1) WO2018079302A1 (fr)

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US20220249304A1 (en) * 2021-02-05 2022-08-11 The Procter & Gamble Company Three dimensional nonwoven and absorbent articles having the same

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JP7437870B2 (ja) * 2018-06-27 2024-02-26 花王株式会社 吸収性物品
JP2020162934A (ja) * 2019-03-29 2020-10-08 Jnc株式会社 吸収性物品用の表面シート及び吸収性物品

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Also Published As

Publication number Publication date
JP6668217B2 (ja) 2020-03-18
JP2018068382A (ja) 2018-05-10
CN109862859A (zh) 2019-06-07
KR102537750B1 (ko) 2023-05-26
KR20190073449A (ko) 2019-06-26
AU2017349535A1 (en) 2019-05-09
AU2017349535B2 (en) 2023-05-04
CN109862859B (zh) 2021-07-20

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