WO2020090178A1 - Absorbent article - Google Patents

Absorbent article Download PDF

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Publication number
WO2020090178A1
WO2020090178A1 PCT/JP2019/030597 JP2019030597W WO2020090178A1 WO 2020090178 A1 WO2020090178 A1 WO 2020090178A1 JP 2019030597 W JP2019030597 W JP 2019030597W WO 2020090178 A1 WO2020090178 A1 WO 2020090178A1
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WO
WIPO (PCT)
Prior art keywords
absorbent article
region
sheet
sap
present
Prior art date
Application number
PCT/JP2019/030597
Other languages
French (fr)
Japanese (ja)
Inventor
翔士 ▲高▼阪
山本　純子
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 CN201980052325.5A priority Critical patent/CN112533569B/en
Publication of WO2020090178A1 publication Critical patent/WO2020090178A1/en

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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
    • A61F13/47—Sanitary towels, incontinence pads or napkins
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/51—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
    • A61F13/53—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 absorbent articles.
  • Absorbent article comprising a liquid-permeable topsheet containing a water-retaining fiber such as cotton, a liquid-impermeable backsheet, and an absorber arranged between the topsheet and the backsheet.
  • a liquid-permeable topsheet containing a water-retaining fiber such as cotton
  • a liquid-impermeable backsheet arranged between the topsheet and the backsheet.
  • an absorber arranged between the topsheet and the backsheet.
  • the absorbent body by providing the absorbent body with a SAP sheet containing a sheet material and a superabsorbent polymer (SAP) retained by the sheet material, moisture can be quickly removed from the top sheet, and thereby, the fluffing of the top sheet is prevented. It is thought that it can be limited.
  • SAP superabsorbent polymer
  • the SAP sheet when the SAP sheet is provided on the absorbent body, the flexibility of the absorbent body may be deteriorated, and the absorbent article may not be easily deformed. As a result, the followability of the absorbent article to the movement of the wearer's skin may be reduced. In this case, a specific part of the top sheet may strongly hit the wearer's skin. At this location, there is a possibility that the wearer's skin will be greatly rubbed or rubbed, and large fuzz may occur.
  • a liquid-permeable topsheet containing water-retaining fibers, Liquid impermeable back sheet, An absorber arranged between the top sheet and the back sheet, An absorbent article comprising:
  • the absorbent body includes a SAP sheet including a sheet material and a superabsorbent polymer held by the sheet material,
  • the SAP sheet includes a plurality of second regions divided by a first region,
  • the basis weight of the superabsorbent polymer in the first region is less than the basis weight of the superabsorbent polymer in the second region, Absorbent article.
  • the first region serves as the bending start point, and the absorbent body or absorbent article can be more easily deformed.
  • the absorbent article can be more surely kept fitted to the wearer's skin, and fluffing of the top sheet is limited. Therefore, the wearer's feeling of discomfort is more surely restricted while maintaining excellent touch.
  • the sheet material includes a pair of layers that are superposed on each other and bonded to each other by a heat seal portion, The heat seal part is provided in the first region, The absorbent article according to configuration 1 or 2. According to the configuration 3, the heat-sealed portion serves as the bending start point, and the absorber can be deformed more easily.
  • the basis weight of the superabsorbent polymer in the portion in the second region located more inside in the width direction of the absorbent article is within the second region located more outside in the width direction of the absorbent article.
  • the configuration 6 when the superabsorbent polymer of the absorbent body absorbs water, the portion of the absorbent body located on the inner side in the width direction of the absorbent article can largely expand in the thickness direction of the absorbent article. As a result, the absorbent article can be more surely kept fitted to the wearer's skin.
  • the top sheet includes a skin-side layer and a non-skin-side layer that are laminated on each other, and a water-retaining fiber content rate of the skin-side layer is higher than a water-retaining fiber content rate of the non-skin side layer.
  • the absorbent article according to any one of 1. According to the configuration 9, while the excellent skin feel is maintained by the skin side layer, the liquid is easily directed to the absorber by the non-skin side layer.
  • FIG. 3 is a schematic plan view of an absorbent article according to an embodiment of the present invention.
  • FIG. 2 is a schematic cross-sectional view of an absorbent article according to an embodiment of the present invention, taken along the longitudinal centerline CL of FIG. 1.
  • FIG. 3 is a schematic cross-sectional view of a top sheet according to an embodiment of the present invention.
  • FIG. 3 is a schematic plan view of an absorber according to an embodiment of the present invention.
  • FIG. 5 is a schematic cross-sectional view of the absorbent article according to the embodiment of the present invention, taken along line VV in FIG. 4.
  • FIG. 7 is a schematic plan view of a component for manufacturing the absorber of the embodiment according to the present invention.
  • FIG. 6 is a schematic plan view showing an imaginary line for disposing a heat seal portion in the absorber of the embodiment according to the present invention. It is a schematic plan view of the absorber of another embodiment according to the present invention. It is a schematic plan view of the absorber of another embodiment by the present invention.
  • FIG. 1 shows a schematic plan view of an absorbent article 1 according to an embodiment of the present invention
  • FIG. 2 shows a schematic sectional view taken along line CL-CL in FIG.
  • the absorbent article 1 according to the embodiment of the present invention is composed of a light incontinence pad.
  • the absorbent article 1 is composed of, for example, a panty liner, a sanitary napkin, a disposable diaper, or the like.
  • L, W, T indicate the length direction, the width direction, and the thickness direction of the absorbent article 1, respectively.
  • CL indicates the lengthwise L center line
  • CW indicates the widthwise W centerline.
  • the absorbent article 1 according to the embodiment of the present invention is symmetrical with respect to each of the widthwise centerlines CW.
  • the side closer to the lengthwise centerline CL is called the inner side
  • the side farther from the lengthwise centerline CL is called the outer side.
  • the side closer to the width direction center line CW is referred to as the inner side
  • the side farther from the width direction center line CW is referred to as the outer side.
  • an absorbent article 1 includes a liquid-permeable topsheet 2, a liquid-impermeable backsheet 3, and a topsheet 2, which include water-retaining fibers.
  • the absorber 4 arranged between the back sheet 3 and the back sheet 3.
  • the top sheet 2, the back sheet 3, and the absorber 4 are laminated on each other in the thickness direction T.
  • the top sheet 2 and the back sheet 3 have substantially the same size in the length direction L and the width direction W.
  • the absorber 4 is smaller than the topsheet 2 and the backsheet 3 in the length direction L and the width direction W.
  • the absorbent article 1 according to the embodiment of the present invention further includes an adhesive portion 8 provided on the backsheet 3 on the side opposite to the topsheet 2, and a separator 9 that covers the adhesive portion 8.
  • the adhesive portion 8 of the embodiment according to the present invention is formed of a plurality of adhesive tapes that are separated from each other in the width direction W and extend in the length direction L, respectively. The adhesive portion 8 is used to fix the absorbent article 1 to the wearer's underwear or the like.
  • the dotted line indicates the adhesive layer. That is, in the embodiment shown in FIG. 2, an adhesive layer is provided between the top sheet 2 and the absorbent body 4, and between the absorbent body 4 and the back sheet 3.
  • adhesives include hot melt adhesives.
  • the absorbent article 1 further includes a heat-sealing portion 11 for joining at least the topsheet 2 and the backsheet 3 to each other by heat-sealing.
  • the heat-sealing portion 11 is continuously provided along the peripheral edge of the absorbent article 1 outside the absorbent body 4 in the length direction L and the width direction W. As a result, the absorber 4 is held between the top sheet 2 and the back sheet 3.
  • the topsheet 2 of the embodiment according to the present invention includes a skin side layer 2a and a non-skin side layer 2b that are laminated in the thickness direction T.
  • the skin side layer 2a can contact the wearer's skin.
  • the non-skin side layer 2b does not contact the wearer's skin.
  • the skin side layer 2a and the non-skin side layer 2b of the embodiment according to the present invention are each formed of a sheet-shaped nonwoven fabric.
  • the skin side layer 2a and the non-skin side layer 2b of the embodiment according to the present invention are joined to each other by entanglement. Examples of the entanglement include a spunlace method, a water jet method, and an air through method.
  • the top sheet 2 is formed of two layers.
  • the topsheet 2 is formed of one layer or three or more layers.
  • the skin-side layer 2a of the embodiment according to the present invention does not contain the thermoplastic resin fiber but contains the water retention fiber.
  • the skin side layer 2a includes water-retaining fibers and thermoplastic resin fibers.
  • the non-skin side layer 2b of the embodiment according to the present invention includes a water retention fiber and a thermoplastic resin fiber.
  • the non-skin side layer 2b contains thermoplastic resin fibers without water-holding fibers.
  • the water-retaining fiber has a property of absorbing and retaining water.
  • thermoplastic resin fiber has a property that it is difficult to be compatible with water or it is difficult to retain water, for example, a property that a contact angle with ion-exchanged water (example: specific resistance value 10 M ⁇ ⁇ cm) is about 80 ° to 100 °. Have.
  • Examples of components of the water-retaining fiber of the embodiment according to the present invention include cellulosic fibers.
  • cellulosic fibers include natural cellulosic fibers, regenerated cellulosic fibers, purified cellulosic fibers and semi-synthetic cellulosic fibers.
  • natural cellulose fibers include vegetable fibers.
  • Examples of plant fibers include seed hair fibers, bark fibers, vein fibers, and fruit fibers.
  • Examples of seed hair fibers include cotton.
  • Examples of dust fibers include hemp.
  • Examples of vein fibers include Manila hemp.
  • fruit fibers include palm. Examples of cotton include hirsutum varieties cotton, barbadense varieties cotton, arboreum varieties cotton and helbachemae varieties cotton.
  • Examples of hirsutum cotton include upland cotton.
  • examples of cotton include organic cotton, pre-organic cotton (trademark), and non-organic cotton.
  • Organic cotton means cotton that has been certified by GOTS (Global Organic Textile Standard).
  • Examples of regenerated cellulose fibers include rayon.
  • Examples of rayon include viscose rayon obtained from viscose, polynosic, modal, and copper ammonia rayon (also referred to as "cupra") obtained from a solution of cellulose in a copper ammonia salt.
  • the purified cellulose fiber As an example of the purified cellulose fiber, lyocell, specifically pulp, is dissolved in an aqueous solution of N-methylmorpholine N-oxide to prepare a spinning dope (dope), which is then added to a dilute solution of N-methylmorpholine N-oxide. It includes those extruded into fibers.
  • Purified cellulose is commercially available, for example, as TENCEL (trademark).
  • semi-synthetic cellulose fibers include semi-synthetic cellulose.
  • semi-synthetic cellulose include acetate fibers.
  • Examples of acetate fibers include triacetate and diacetate. Among them, from the viewpoint of water retention and touch, natural cellulose fibers are preferable, cotton is more preferable, and hirsutum type cotton is further preferable.
  • thermoplastic resin fiber examples include olefin resin, polyester resin, and polyamide resin.
  • olefin resin examples include polyethylene (PE), polypropylene (PP), and ethylene-vinyl acetate copolymer (EVA).
  • polyester resin examples include polyethylene terephthalate (PET) and polylactic acid (PLA).
  • polyamide resins examples include polyamide resins such as 6-nylon.
  • structure of the thermoplastic resin fiber include a composite fiber, a hollow type fiber, a modified cross-section type fiber, a three-dimensional crimped fiber, and a split fiber.
  • composite fibers examples include core-sheath fibers, side-by-side fibers, island / sea fibers.
  • modified cross-section fibers include flat cross-section fibers, Y-shaped cross-section fibers, and C-shaped cross-section fibers.
  • three-dimensional crimped fibers include latent crimped fibers and actual crimped fibers.
  • the water retention fiber content ratio of the skin side layer 2a is higher than the water retention fiber content ratio of the non-skin side layer 2b.
  • the water-holding fiber content ratio of the skin side layer 2a is 100% by mass.
  • the water-retaining fiber content of a layer is represented by the mass of the water-retaining fiber contained in the layer with respect to the total mass of the layer.
  • the water-retaining fiber of the skin side layer 2a preferably contains organic cotton.
  • the skin side layer 2a preferably contains 100% by mass of the water retaining fiber.
  • the water-retaining fibers of the non-skin side layer 2b preferably include non-organic cotton.
  • the thermoplastic resin fiber of the non-skin side layer 2b preferably contains a plurality of components, more preferably PP and PE or PP and PET.
  • the non-skin side layer 2b preferably contains 20 to 80% by mass of water-retaining fibers and 80 to 20% by mass of thermoplastic resin fibers. 20-40 gsm is preferable and, as for the basis weight of the non-skin side layer 2b, 25-35 gsm is more preferable.
  • the ratio of the basis weight of the skin side layer 2a to the basis weight of the non-skin side layer 2b is preferably 1: 1 to 1: 1.3, and more preferably 1: 1.15 to 1: 1.25.
  • the thickness (T dimension in the thickness direction) of the top sheet 2 is preferably 0.2 to 1.5 mm, more preferably 0.2 to 1.0 mm.
  • the skin side layer 2a of the top sheet 2 according to the embodiment of the present invention contains 100% by mass of organic cotton, and its basis weight is 10 gsm.
  • the non-skin side layer 2b of the embodiment according to the present invention contains 60% by mass of non-organic cotton, 40% by mass of PE and PP, and has a basis weight of 20 gsm.
  • the thickness of the topsheet 2 of the embodiment according to the present invention is 0.3 to 0.5 mm.
  • the back sheet 3 of the embodiment according to the present invention is formed of a liquid impermeable nonwoven fabric, a synthetic resin film, a composite sheet of a nonwoven fabric and a synthetic resin film, or an SMS nonwoven fabric.
  • FIG. 4 is a schematic plan view of the absorbent body 4 according to the embodiment of the present invention
  • FIG. 5 is a schematic cross-sectional view taken along line VV of FIG.
  • the absorber 4 according to the embodiment of the present invention includes the SAP sheet 4a.
  • the SAP sheet 4a according to the embodiment of the present invention includes a sheet material 40 and a super absorbent polymer (SAP) 44 held by the sheet material 40.
  • the sheet material 40 of the embodiment according to the present invention includes a first layer 41 and a second layer 42 which are superposed on each other and bonded to each other by a heat seal portion 43.
  • the first layer 41 and the second layer 42 of the embodiment according to the present invention each include a thermoplastic fiber.
  • the SAP 44 of the embodiment according to the present invention is in the form of particles and is mainly retained between the first layer 41 and the second layer 42.
  • the absorbent body 4 of the embodiment according to the present invention includes SAP without including pulp.
  • the absorbent body 4 comprises pulp and SAP.
  • the length direction, the width direction, and the thickness direction of the absorber 4 or the SAP sheet 4a are the length direction L, the width direction W, and the thickness direction T of the absorbent article 1.
  • the dotted line indicates the adhesive layer. That is, in the embodiment shown in FIG. 5, the adhesive layer is formed on the surface of the first layer 41 facing the second layer 42 and on the surface of the second layer 42 facing the first layer 41. Is provided. Examples of adhesives include hot melt adhesives.
  • the absorber 4 or the SAP sheet 4a according to the embodiment of the present invention includes a plurality of second regions R2 partitioned or separated by the first region R1.
  • each of the second regions R2 is surrounded by the first region R1.
  • the first region R1 of the embodiment according to the present invention has a lattice shape. Therefore, apart from the peripheral portion of the absorber 4, the second region R2 has a quadrangular or rhombic shape.
  • the sizes of the second regions R2 are the same (including substantially the same) except for the peripheral portion of the absorber 4.
  • the first region R1 is also provided in a portion along the peripheral edge of the absorber 4.
  • the SAP basis weight in the first region R1 (eg, gsm) is smaller than the SAP basis weight in the second region R2.
  • the SAP basis weight in the first region R1 of the embodiment according to the present invention is zero (including substantially zero).
  • the SAP basis weight in the second region R2 is preferably 100 gsm or more.
  • the difference between the SAP grammage in the first region R1 and the SAP grammage in the second region R2 is preferably 100 gsm or more.
  • the heat-sealing portion 43 of the embodiment according to the present invention applies pressure and heat to the first layer 41 and the second layer 42 that are superposed on each other in the thickness direction T of the absorbent article 1 or the absorbent body 4. It is formed by heat-sealing the first layer 41 and the second layer 42 to each other. As a result, the first layer 41 and the second layer 42 are bonded to each other, and the SAP is securely held by the SAP sheet 4a.
  • the SAP sheet 4a according to the embodiment of the present invention is formed as follows, for example. That is, the adhesive is applied on the first surface of the first strip that is transported in the transport direction. SAP is then applied on the first surface of the first strip, and negative pressure is applied to the second surface of the first strip opposite the first surface. In an embodiment according to the invention, a negative pressure is applied to the second surface via plate 50 as shown in FIG.
  • the plate 50 according to the embodiment of the present invention includes a masking portion 51 having a lattice shape and an opening 52 other than the masking portion 51.
  • negative pressure acts on a region of the second surface of the first strip facing the opening 52, and a region of the first surface on the opposite side of the region has a relatively large SAP basis weight, That is, the second region R2 is formed.
  • the negative pressure hardly acts on the region of the second surface of the first strip facing the masking portion 51, and the SAP basis weight is on the region of the first surface on the opposite side of the region.
  • a relatively small area, that is, the first area R1 is formed.
  • the second strip is superposed on the first surface of the first strip.
  • An adhesive is applied in advance to the surface of the second strip that faces the first strip. Next, for example, pressure and heat are applied from the second strip toward the first strip, and the heat seal portion 43 is formed.
  • first band-shaped body and the second band-shaped body are bonded to each other, and SAP is held between the first band-shaped body and the second band-shaped body.
  • first strip and the second strip are cut into individual SAP sheets 4a.
  • the first strip and the second strip correspond to the first layer 41 and the second layer 42 of the SAP sheet 4a, respectively.
  • MD indicates the transport direction
  • CD indicates the direction orthogonal to the transport direction MD.
  • the transport direction MD and the orthogonal direction CD correspond to the length direction L and the width direction W of the absorbent article 1 to the absorbent body 4, respectively.
  • the area inside the width direction W of the absorber 4 or the SAP sheet 4a is referred to as the inner area 4i
  • the area outside the width direction W of the absorber 4 or the SAP sheet 4a is referred to as the outer area 4o
  • a larger amount of SAP is applied to the portion of the first strip corresponding to the inner area 4i of the SAP sheet 4a, and the portion of the first strip corresponding to the outer area 4o of the SAP sheet 4a.
  • the amount of SAP applied to is set to be smaller.
  • a larger amount of the adhesive is applied to the first strip-shaped portion and the second strip-shaped portion corresponding to the inner area 4i of the SAP sheet 4a, which corresponds to the outer area 4o of the SAP sheet 4a.
  • the amount of adhesive applied to the first strip-shaped portion and the second strip-shaped portion is set to be smaller. Specifically, for example, the adhesive is applied entirely, that is, without a gap, to each of the first strip-shaped portion and the second strip-shaped portion corresponding to the inner region 4i.
  • the adhesive is partially separated from the first strip-shaped portion and the second strip-shaped portion corresponding to the outer region 4o, that is, in the orthogonal direction CD (width direction W), for example. Applied in the form of multiple lines.
  • the SAP basis weight in the portion of the second region R2 located in the inner section 4i is larger than the SAP basis weight in the portion of the second region R2 located in the outer section 4o. large.
  • the SAP basis weight of the portion Pi is larger than the SAP basis weight of the portion Po.
  • the SAP basis weight in the portion in the second region R2 located on the inner side in the width direction W is equal to the SAP basis weight on the outer side in the width direction W. It is larger than the SAP grammage in the region R2.
  • the distribution of the SAP basis weight of the second region R2 in the width direction W is non-uniform.
  • the SAP basis weight of the second region R2 has a uniform distribution in the width direction W (including substantially uniform).
  • the distribution of the SAP basis weight of the first region R1 in the width direction W is uniform (including substantially uniform).
  • the distribution of the SAP grammage of the first region R1 in the length direction L and the distribution of the SAP grammage of the second region R2 in the length direction L are both uniform ( (Including substantially uniform).
  • the heat seal part 43 of the embodiment according to the present invention is provided in the first region R1.
  • the heat seal portion 43 of the embodiment according to the present invention is not provided in the second region R2.
  • the heat seal portion 43 according to the embodiment of the present invention is provided along an imaginary line extending in the first region R1.
  • the imaginary line of the embodiment according to the present invention includes a plurality of imaginary lines 45 that are spaced apart from each other in the length direction L and each form a zigzag.
  • the imaginary lines 45 are spaced apart from each other in the lengthwise direction L and have a wavy shape.
  • the heat seal portion 43 is discontinuous in the length direction of the imaginary line 45.
  • the first region R1 includes a portion where the heat seal portion 43 is provided and a portion where the heat seal portion 43 is not provided.
  • the heat seal part 43 of the embodiment according to the present invention is partially provided in the first region R1.
  • the area of the second region R2 located on the outer side in the width direction W is smaller than the area of the second region R2 located on the inner side in the width direction W.
  • the area of the second region R2o is smaller than the area of the second region R2i.
  • the area of the outer second region R2o is preferably 75% or less of the area of the inner second region R2i.
  • a liquid such as urine is first absorbed by the skin-side layer 2a of the top sheet 2, and then reaches the absorber 4 via the non-skin-side layer 2b of the top sheet 2, and is absorbed or Retained.
  • the non-skin side layer 2b containing the thermoplastic resin fiber is provided on the non-skin side of the skin side layer 2a of the top sheet 2, the liquid absorbed in the skin side layer 2a is favorably formed. 2b.
  • the dryness of the skin side layer 2a is improved. Therefore, the fuzz of the top sheet 2 is further restricted.
  • the non-skin side layer 2b of the top sheet 2 and the back sheet 3 are joined to each other by the heat-sealing portion 11. Since the non-skin side layer 2b contains the thermoplastic resin fiber, the bondability between the top sheet 2 and the back sheet 3 is further enhanced.
  • the absorber 4 contains SAP, the liquid absorbed by the absorber 4 is restricted from returning to the topsheet 2. Therefore, the dryness of the top sheet 2 is improved, and the fluffing of the top sheet 2 is further restricted.
  • the SAP basis weight in the first region R1 is smaller than the SAP basis weight in the second region R2.
  • the first region R1 (including the boundary with the second region R2) is bent more easily. Therefore, the first region R1 serves as a folding start point, and the absorber 4 or the absorbent article 1 can be more easily deformed.
  • the absorbent article 1 can continue to be more surely fitted to the wearer's skin. Therefore, the concentration of the pressure acting on the top sheet 2 is limited, and the contact with the wearer's skin becomes more uniform. As a result, friction or friction with respect to the top sheet 2 is reduced, so that the fluffing of the top sheet 2 is further restricted. Therefore, the wearer's feeling of discomfort is more surely restricted while maintaining excellent touch.
  • the absorbent body 4 or the absorbent article 1 can be more easily folded in the first region R1.
  • the heat seal portion 43 is provided in the first region R1.
  • the heat-sealing portion 43 serves as a bending start point, and the absorber 4 or the absorbent article 1 can be deformed more easily.
  • the heat seal portion 43 is partially provided in the first region R1, it is limited that the SAP expansion due to water absorption is suppressed by the heat seal portion 43.
  • the SAP expansion in this case includes one or both of the expansion in the thickness direction T and the expansion in the length direction L and the width direction W. Further, the diffusion of the liquid is restricted from being hindered by the heat seal portion 43. Therefore, the liquid is absorbed more quickly.
  • the absorber 4 since the heat-sealing portions 43 are provided along the plurality of imaginary lines 45 that are zigzag-shaped or wavy while being separated from each other in the lengthwise direction L, the absorber 4 is more complicated. It can be transformed into a shape. As a result, the absorbent article 1 can continue to be more surely fitted to the wearer's skin.
  • the absorber 4 can be deformed along a plurality of directions, and thus the absorber 4 can be deformed into a more complicated shape. Becomes Therefore, also from this point of view, the absorbent article can continue to be more surely fitted to the wearer's skin.
  • the absorbent article 1 is used such that the left side portion of the absorbent body 4 shown in FIG. 4 is located on the front side of the wearer and the right side portion is located on the back side of the wearer. As a result, the absorber 4 or the absorbent article 1 bent along the first region R1 can be more surely fitted to the unevenness of the wearer's skin.
  • the SAP basis weight in the portion in the second region R2 located on the inner side in the width direction W is in the portion in the second region R2 located on the outer side in the width direction W. Since it is larger than the SAP basis weight, when the SAP of the absorbent body 4 absorbs water, the portion of the absorbent body 4 located on the inner side in the width direction W can largely expand in the thickness direction T. As a result, the absorbent article 1 can continue to be more surely fitted to the wearer's skin.
  • the SAP basis weight of the portion in the second region R2 located on the outer side in the width direction W is smaller than the SAP basis weight of the portion in the second region R2 located on the inner side in the width direction W.
  • the portion of the absorbent body 4 located on the outer side in the width direction W can expand to a smaller extent in the thickness direction T.
  • the expansion of the SAP prevents the absorbent article 1 from being difficult to follow the movement of the wearer.
  • the area of the second region R2 located on the outer side in the width direction W is smaller than the area of the second region R2 located on the inner side in the width direction W.
  • the absorbent article 1 can be deformed into a more complicated shape. Therefore, it becomes possible for the top sheet 2 to follow the wearer's movements reliably, and the absorbent article 1 can continue to be more surely fitted to the wearer's skin.
  • FIG. 9 shows a schematic plan view of an absorber 4 according to another embodiment of the present invention.
  • the area of the second region RWo located on the outer side in the width direction W is smaller than the area of the second region R2i located on the inner side in the width direction W. Therefore, also in this embodiment, the absorbent article 1 can be deformed into a more complicated shape on the outer side in the width direction W.
  • the shape of the second region RWo located on the outer side in the width direction W and the shape of the second region R2i located on the inner side in the width direction W are similar ( Including substantially similar).
  • the first region R1 on the inner side in the width direction W and the first region R1 on the outer side in the width direction W can be formed in the same direction, so that the absorber 4 or the SAP sheet 4a can be formed more easily. It will be easier.
  • An absorbent article according to another embodiment (not shown) according to the present invention further includes a second sheet arranged between the top sheet 1 and the absorbent body 4.
  • the second sheet is formed of, for example, a sheet-shaped non-woven fabric.
  • the second sheet includes the thermoplastic resin fibers without including the water retaining fibers in one example, and includes the water retaining fibers and the thermoplastic resin fibers in another example.
  • the absorbent article according to yet another embodiment (not shown) according to the present invention further includes a tissue disposed between the absorbent body 4 and the backsheet 3.
  • the tissue is formed of, for example, a sheet-shaped nonwoven fabric.
  • the tissue contains thermoplastic resin fibers without containing water-holding fibers in one example, and contains water-holding fibers and thermoplastic resin fibers in another example.
  • the absorbent article according to still another embodiment (not shown) according to the present invention further includes another absorbent body arranged between the absorbent body 4 and the back sheet 3. This alternative absorbent comprises pulp without SAP in one example, and SAP and pulp in another example.
  • the SAP sheet 4a is folded along one or a plurality of folding lines extending in the length direction L and between the top sheet 2 and the back sheet 3. Is located in. By doing so, a space is formed between the folded portions of the SAP sheet 4a, and the liquid can be retained in this space. Note that, in the above-described embodiment according to the present invention, the SAP sheet 4a is not folded.

Abstract

This absorbent article, for the purpose of more reliably limiting a wearer from feeling inconvenience while maintaining excellent skin touch, is provided with: a liquid-permeable top sheet including a water-retentive fibers; a liquid-impermeable back sheet; and an absorbent body (4) disposed between the top sheet and the back sheet. The absorbent body is provided with an SAP sheet (4a) which includes: sheet members (41, 42); and a highly absorbent polymer (44) held in the sheet materials. The SAP sheet is provided with a plurality of second regions (R2) divided by first regions. (R1).The basis weight of the highly absorbent polymer in the first regions are smaller than the basis weight of the highly absorbent polymer in the second regions.

Description

吸収性物品Absorbent article
　本発明は吸収性物品に関する。 The present invention relates to absorbent articles.
　コットンのような保水性繊維を含む、液透過性のトップシートと、液不透過性のバックシートと、トップシートとバックシートとの間に配置された吸収体と、を備えた、吸収性物品が公知である（例えば、特許文献１参照）。トップシートにコットンが含まれていると、着用者の肌触りがよくなる。 Absorbent article comprising a liquid-permeable topsheet containing a water-retaining fiber such as cotton, a liquid-impermeable backsheet, and an absorber arranged between the topsheet and the backsheet. Is known (for example, refer to Patent Document 1). When the topsheet contains cotton, it feels good to the wearer.
特開２００９－１４８３２８号公報JP, 2009-148328, A
　ところで、コットンのような保水性繊維は、湿気環境下での擦れ又は摩擦により、毛羽立ちが生じやすいことが知られている。このため、特許文献１の吸収性物品において、トップシートが例えば着用者の尿や汗などを吸収した状態で、着用者の肌に対しズレを生じると、トップシートに擦れ又は摩耗が生じ、トップシートが大きく毛羽立つおそれがある。トップシートが大きく毛羽立つと、着用者が違和感を覚えるおそれがあり、例えば着用者に肌荒れが生ずるおそれがある。 By the way, it is known that water-retaining fibers such as cotton tend to cause fuzz due to rubbing or rubbing in a humid environment. Therefore, in the absorbent article of Patent Document 1, when the top sheet absorbs, for example, the wearer's urine or sweat, and the wearer's skin is displaced, the top sheet is rubbed or worn, and the top The sheet may become large and fluffy. If the top sheet is greatly fluffed, the wearer may feel discomfort, and for example, the wearer may have rough skin.
　この点、吸収体に、シート材とシート材に保持された高吸収性ポリマー（ＳＡＰ）とを含むＳＡＰシートを設けることによって、トップシートから湿気を速やかに除去でき、それによってトップシートの毛羽立ちを制限できると考えられる。 In this respect, by providing the absorbent body with a SAP sheet containing a sheet material and a superabsorbent polymer (SAP) retained by the sheet material, moisture can be quickly removed from the top sheet, and thereby, the fluffing of the top sheet is prevented. It is thought that it can be limited.
　しかしながら、吸収体にＳＡＰシートを設けると、吸収体の柔軟性が低下するおそれがあり、吸収性物品が変形しにくくなるおそれがある。その結果、着用者の肌の動きに対する吸収性物品の追従性が低下するおそれがある。この場合、トップシートの特定の箇所が着用者の肌に強く当たるおそれがある。当該箇所では、着用者の肌による擦れ又は摩擦が大きいおそれがあり、大きな毛羽立ちが生ずるおそれがある。 However, when the SAP sheet is provided on the absorbent body, the flexibility of the absorbent body may be deteriorated, and the absorbent article may not be easily deformed. As a result, the followability of the absorbent article to the movement of the wearer's skin may be reduced. In this case, a specific part of the top sheet may strongly hit the wearer's skin. At this location, there is a possibility that the wearer's skin will be greatly rubbed or rubbed, and large fuzz may occur.
　本発明によれば、以下が開示される。
［構成１］
　保水性繊維を含む、液透過性のトップシートと、
　液不透過性のバックシートと、
　前記トップシートと前記バックシートとの間に配置された吸収体と、
を備えた吸収性物品であって、
　前記吸収体は、シート材と、前記シート材に保持された高吸収性ポリマーと、を含むＳＡＰシートを備え、
　前記ＳＡＰシートは、第１の領域によって区画された複数の第２の領域を備え、
　前記第１の領域における前記高吸収性ポリマーの坪量は前記第２の領域における前記高吸収性ポリマーの坪量よりも小さい、
吸収性物品。
　構成１によれば、第１の領域が折り曲げ起点となり、吸収体ないし吸収性物品がより容易に変形可能となる。その結果、吸収性物品が着用者の肌により確実にフィットし続けることが可能となり、トップシートの毛羽立ちが制限される。したがって、優れた肌触りが維持されつつ、着用者が違和感を覚えるのがより確実に制限される。 According to the present invention, the following is disclosed.
[Configuration 1]
A liquid-permeable topsheet containing water-retaining fibers,
Liquid impermeable back sheet,
An absorber arranged between the top sheet and the back sheet,
An absorbent article comprising:
The absorbent body includes a SAP sheet including a sheet material and a superabsorbent polymer held by the sheet material,
The SAP sheet includes a plurality of second regions divided by a first region,
The basis weight of the superabsorbent polymer in the first region is less than the basis weight of the superabsorbent polymer in the second region,
Absorbent article.
According to the configuration 1, the first region serves as the bending start point, and the absorbent body or absorbent article can be more easily deformed. As a result, the absorbent article can be more surely kept fitted to the wearer's skin, and fluffing of the top sheet is limited. Therefore, the wearer's feeling of discomfort is more surely restricted while maintaining excellent touch.
［構成２］
　前記第１の領域における前記高吸収性ポリマーの坪量はゼロである、構成１に記載の吸収性物品。
　構成２によれば、吸収体が第１の領域において、より容易に折り曲げ可能となり、吸収体がより容易に変形可能となる。 [Configuration 2]
The absorbent article according to configuration 1, wherein the basis weight of the superabsorbent polymer in the first region is zero.
According to the configuration 2, the absorber can be bent more easily in the first region, and the absorber can be deformed more easily.
［構成３］
　前記シート材は、互いに重ね合わされて熱シール部により互いに結合された一対の層を含み、
　前記熱シール部は、前記第１の領域内に設けられている、
構成１又は２に記載の吸収性物品。
　構成３によれば、熱シール部が折り曲げ起点となり、吸収体がより容易に変形可能となる。 [Configuration 3]
The sheet material includes a pair of layers that are superposed on each other and bonded to each other by a heat seal portion,
The heat seal part is provided in the first region,
The absorbent article according to configuration 1 or 2.
According to the configuration 3, the heat-sealed portion serves as the bending start point, and the absorber can be deformed more easily.
［構成４］
　前記熱シール部は、前記第１の領域内に部分的に設けられている、構成３に記載の吸収性物品。
　構成４によれば、吸水による高吸収性ポリマーの膨張が熱シール部によって抑制されるのが制限される。 [Configuration 4]
The absorbent article according to configuration 3, wherein the heat seal portion is partially provided in the first region.
According to the configuration 4, the expansion of the super absorbent polymer due to water absorption is restricted from being suppressed by the heat seal portion.
［構成５］
　前記熱シール部は、前記吸収性物品の長さ方向に互いに離間しつつそれぞれジグザグ状又は波状をなす複数の仮想線に沿って設けられている、構成３又は４に記載の吸収性物品。
　構成５によれば、吸収体がより複雑な形状に変形可能となり、吸収性物品が着用者の肌により確実にフィットし続けることが可能となる。 [Configuration 5]
5. The absorbent article according to configuration 3 or 4, wherein the heat-sealing portion is provided along a plurality of imaginary lines that are zigzag-shaped or wavy, respectively, while being separated from each other in the lengthwise direction of the absorbent article.
According to the configuration 5, the absorber can be deformed into a more complicated shape, and the absorbent article can be more surely kept fitted to the wearer's skin.
［構成６］
　前記吸収性物品の幅方向のより内側に位置する前記第２の領域内の部分における高吸収性ポリマーの坪量は、前記吸収性物品の幅方向のより外側に位置する前記第２の領域内の部分における高吸収性ポリマーの坪量よりも大きい、構成１から５までのいずれか１つに記載の吸収性物品。
　構成６によれば、吸収体の高吸収性ポリマーが吸水すると、吸収性物品の幅方向のより内側に位置する吸収体の部分が、吸収性物品の厚さ方向により大きく膨張することが可能となり、それによって吸収性物品が着用者の肌により確実にフィットし続けることが可能となる。 [Configuration 6]
The basis weight of the superabsorbent polymer in the portion in the second region located more inside in the width direction of the absorbent article is within the second region located more outside in the width direction of the absorbent article. The absorbent article according to any one of configurations 1 to 5, which has a higher basis weight than the superabsorbent polymer in the portion.
According to the configuration 6, when the superabsorbent polymer of the absorbent body absorbs water, the portion of the absorbent body located on the inner side in the width direction of the absorbent article can largely expand in the thickness direction of the absorbent article. As a result, the absorbent article can be more surely kept fitted to the wearer's skin.
［構成７］
　前記吸収性物品の幅方向のより外側に位置する前記第２の領域の面積は、前記吸収性物品の幅方向のより内側に位置する前記第２の領域の面積よりも小さい、構成１から６までのいずれか１つに記載の吸収性物品。
　構成７によれば、吸収性物品の幅方向外側において、吸収性物品がより複雑な形状に変形可能となり、吸収性物品が着用者の肌により確実にフィットし続けることが可能となる。 [Configuration 7]
Configurations 1 to 6, wherein the area of the second region located on the outer side in the width direction of the absorbent article is smaller than the area of the second region located on the inner side in the width direction of the absorbent article. The absorbent article according to any one of items 1 to 7.
According to the configuration 7, the absorbent article can be deformed into a more complicated shape on the outer side in the width direction of the absorbent article, and the absorbent article can continue to be more surely fitted to the wearer's skin.
［構成８］
　前記第１の領域が格子状をなしている、構成１から７までのいずれか１つに記載の吸収性物品。
　構成８によれば、吸収体がより複雑な形状に変形可能となり、吸収性物品が着用者の肌により確実にフィットし続けることが可能となる。 [Configuration 8]
The absorbent article according to any one of configurations 1 to 7, wherein the first region has a lattice shape.
According to the configuration 8, the absorber can be deformed into a more complicated shape, and the absorbent article can be more surely kept fitted to the wearer's skin.
［構成９］
　前記トップシートが互いに積層された肌側層及び非肌側層を備え、前記肌側層の保水性繊維含有割合は前記非肌側層の保水性繊維含有割合よりも高い、構成１から８までのいずれか１つに記載の吸収性物品。
　構成９によれば、肌側層によって優れた肌触りが維持されつつ、非肌側層によって液体が吸収体により容易に向かわされる。 [Configuration 9]
The top sheet includes a skin-side layer and a non-skin-side layer that are laminated on each other, and a water-retaining fiber content rate of the skin-side layer is higher than a water-retaining fiber content rate of the non-skin side layer. The absorbent article according to any one of 1.
According to the configuration 9, while the excellent skin feel is maintained by the skin side layer, the liquid is easily directed to the absorber by the non-skin side layer.
［構成１０］
　前記肌側層の保水性繊維含有割合は１００％である、構成９に記載の吸収性物品。
　構成１０によれば、より優れた肌触りが提供される。 [Configuration 10]
10. The absorbent article according to configuration 9, wherein the content rate of the water-retaining fiber in the skin side layer is 100%.
According to the configuration 10, a better touch is provided.
　優れた肌触りを維持しつつ、着用者が違和感を覚えるのをより確実に制限することができる。 It is possible to more reliably limit the wearer's feeling of discomfort while maintaining excellent touch.
本発明による実施形態の吸収性物品の模式的平面図である。FIG. 3 is a schematic plan view of an absorbent article according to an embodiment of the present invention. 本発明による実施形態の吸収性物品の、図１の長さ方向中心線ＣＬに沿う模式的断面図である。FIG. 2 is a schematic cross-sectional view of an absorbent article according to an embodiment of the present invention, taken along the longitudinal centerline CL of FIG. 1. 本発明による実施形態のトップシートの模式的断面図である。FIG. 3 is a schematic cross-sectional view of a top sheet according to an embodiment of the present invention. 本発明による実施形態の吸収体の模式的平面図である。FIG. 3 is a schematic plan view of an absorber according to an embodiment of the present invention. 本発明による実施形態の吸収性物品の、図４のＶ－Ｖ線に沿う模式的断面図である。FIG. 5 is a schematic cross-sectional view of the absorbent article according to the embodiment of the present invention, taken along line VV in FIG. 4. 本発明による実施形態の吸収体を製造するための部品の模式的平面図である。FIG. 7 is a schematic plan view of a component for manufacturing the absorber of the embodiment according to the present invention. 本発明による実施形態の吸収体における熱シール部の配置のための仮想線を示す模式的平面図である。FIG. 6 is a schematic plan view showing an imaginary line for disposing a heat seal portion in the absorber of the embodiment according to the present invention. 本発明による別の実施形態の吸収体の模式的平面図である。It is a schematic plan view of the absorber of another embodiment according to the present invention. 本発明による更に別の実施形態の吸収体の模式的平面図である。It is a schematic plan view of the absorber of another embodiment by the present invention.
　図１は本発明による実施形態の吸収性物品１の模式的平面図を、図２は図１の線ＣＬ－ＣＬに沿った模式的断面図を、それぞれ示している。本発明による実施形態の吸収性物品１は軽失禁パッドから構成される。本発明による別の実施形態（図示しない）では吸収性物品１は例えば、パンティライナ、生理用ナプキン、使い捨ておむつ、などから構成される。なお、図面において、Ｌ，Ｗ，Ｔは吸収性物品１の長さ方向、幅方向、及び厚さ方向をそれぞれ示している。また、図１において、ＣＬは長さ方向Ｌ中心線を、ＣＷは幅方向Ｗ中心線を、それぞれ示している。本発明による実施形態の吸収性物品１は、幅方向中心線ＣＷそれぞれに関して対称をなしている。なお、長さ方向Ｌに関し、長さ方向中心線ＣＬに近い側が内側と、長さ方向中心線ＣＬから遠い側が外側と称される。同様に、幅方向Ｗに関し、幅方向中心線ＣＷに近い側が内側と、幅方向中心線ＣＷから遠い側が外側と称される。 1 shows a schematic plan view of an absorbent article 1 according to an embodiment of the present invention, and FIG. 2 shows a schematic sectional view taken along line CL-CL in FIG. The absorbent article 1 according to the embodiment of the present invention is composed of a light incontinence pad. In another embodiment (not shown) according to the present invention, the absorbent article 1 is composed of, for example, a panty liner, a sanitary napkin, a disposable diaper, or the like. In the drawings, L, W, T indicate the length direction, the width direction, and the thickness direction of the absorbent article 1, respectively. Further, in FIG. 1, CL indicates the lengthwise L center line, and CW indicates the widthwise W centerline. The absorbent article 1 according to the embodiment of the present invention is symmetrical with respect to each of the widthwise centerlines CW. Regarding the lengthwise direction L, the side closer to the lengthwise centerline CL is called the inner side, and the side farther from the lengthwise centerline CL is called the outer side. Similarly, in the width direction W, the side closer to the width direction center line CW is referred to as the inner side, and the side farther from the width direction center line CW is referred to as the outer side.
　図１及び図２を参照すると、本発明による実施形態の吸収性物品１は、保水性繊維を含む、液透過性のトップシート２と、液不透過性のバックシート３と、トップシート２とバックシート３との間に配置された吸収体４と、を備える。これらトップシート２、バックシート３、及び、吸収体４は、厚さ方向Ｔに互いに積層される。本発明による実施形態では、トップシート２及びバックシート３は、長さ方向Ｌ及び幅方向Ｗに関し、互いにほぼ同じ大きさである。また、本発明による実施形態では、吸収体４は長さ方向Ｌ及び幅方向Ｗに関し、トップシート２及びバックシート３よりも小さい。 Referring to FIGS. 1 and 2, an absorbent article 1 according to an embodiment of the present invention includes a liquid-permeable topsheet 2, a liquid-impermeable backsheet 3, and a topsheet 2, which include water-retaining fibers. The absorber 4 arranged between the back sheet 3 and the back sheet 3. The top sheet 2, the back sheet 3, and the absorber 4 are laminated on each other in the thickness direction T. In the embodiment according to the present invention, the top sheet 2 and the back sheet 3 have substantially the same size in the length direction L and the width direction W. Further, in the embodiment according to the present invention, the absorber 4 is smaller than the topsheet 2 and the backsheet 3 in the length direction L and the width direction W.
　本発明による実施形態の吸収性物品１は更に、トップシート２と反対側においてバックシート３に設けられた粘着部８と、粘着部８を覆うセパレータ９と、を備える。本発明による実施形態の粘着部８は、幅方向Ｗに互いに離間しつつそれぞれ長さ方向Ｌに延びる、複数の粘着テープから形成される。粘着部８は吸収性物品１を着用者の下着などに固定するのに用いられる。 The absorbent article 1 according to the embodiment of the present invention further includes an adhesive portion 8 provided on the backsheet 3 on the side opposite to the topsheet 2, and a separator 9 that covers the adhesive portion 8. The adhesive portion 8 of the embodiment according to the present invention is formed of a plurality of adhesive tapes that are separated from each other in the width direction W and extend in the length direction L, respectively. The adhesive portion 8 is used to fix the absorbent article 1 to the wearer's underwear or the like.
　なお、図２において、点線は接着剤の層を示している。すなわち、図２に示される実施形態では、トップシート２と吸収体４との間、及び、吸収体４とバックシート３との間、には接着剤層が設けられる。接着剤の例には、ホットメルト接着剤が含まれる。 Note that in FIG. 2, the dotted line indicates the adhesive layer. That is, in the embodiment shown in FIG. 2, an adhesive layer is provided between the top sheet 2 and the absorbent body 4, and between the absorbent body 4 and the back sheet 3. Examples of adhesives include hot melt adhesives.
　本発明による実施形態の吸収性物品１は更に、少なくともトップシート２とバックシート３とを熱融着により互いに接合する熱融着部分１１を備える。熱融着部分１１は、長さ方向Ｌ及び幅方向Ｗに関し吸収体４よりも外側において、吸収性物品１の周縁に沿って連続的に設けられる。その結果、吸収体４がトップシート２とバックシート３との間に保持される。 The absorbent article 1 according to the embodiment of the present invention further includes a heat-sealing portion 11 for joining at least the topsheet 2 and the backsheet 3 to each other by heat-sealing. The heat-sealing portion 11 is continuously provided along the peripheral edge of the absorbent article 1 outside the absorbent body 4 in the length direction L and the width direction W. As a result, the absorber 4 is held between the top sheet 2 and the back sheet 3.
　本発明による実施形態のトップシート２は図３に示されるように、厚さ方向Ｔに互いに積層された肌側層２ａ及び非肌側層２ｂを備える。肌側層２ａは着用者の肌に接触しうる。非肌側層２ｂは着用者の肌に接触しない。本発明による実施形態の肌側層２ａ及び非肌側層２ｂはそれぞれ、シート状の不織布から形成される。また、本発明による実施形態の肌側層２ａ及び非肌側層２ｂは、交絡により互いに接合される。交絡の例には、スパンレース法、ウォータージェット法、エアスルー法が含まれる。また、本発明による実施形態では、トップシート２は２層から形成される。本発明による別の実施形態（図示しない）では、トップシート２は１層又は３層以上から形成される。 As shown in FIG. 3, the topsheet 2 of the embodiment according to the present invention includes a skin side layer 2a and a non-skin side layer 2b that are laminated in the thickness direction T. The skin side layer 2a can contact the wearer's skin. The non-skin side layer 2b does not contact the wearer's skin. The skin side layer 2a and the non-skin side layer 2b of the embodiment according to the present invention are each formed of a sheet-shaped nonwoven fabric. Moreover, the skin side layer 2a and the non-skin side layer 2b of the embodiment according to the present invention are joined to each other by entanglement. Examples of the entanglement include a spunlace method, a water jet method, and an air through method. Moreover, in the embodiment according to the present invention, the top sheet 2 is formed of two layers. In another embodiment (not shown) according to the present invention, the topsheet 2 is formed of one layer or three or more layers.
　本発明による実施形態の肌側層２ａは、熱可塑性樹脂繊維を含むことなく保水性繊維を含む。本発明による別の実施形態（図示しない）では、肌側層２ａは保水性繊維及び熱可塑性樹脂繊維を含む。また、本発明による実施形態の非肌側層２ｂは、保水性繊維及び熱可塑性樹脂繊維を含む。本発明による別の実施形態（図示しない）では、非肌側層２ｂは保水性繊維を含むことなく熱可塑性樹脂繊維を含む。保水性繊維は、水分を吸収し、保持する性質を有する。一方、熱可塑性樹脂繊維は、水と馴染み難い、又は、水分を保持し難い性質、例えばイオン交換水（例示：比抵抗値１０ＭΩ・ｃｍ）との接触角が８０°～１００°程度である性質を有する。 The skin-side layer 2a of the embodiment according to the present invention does not contain the thermoplastic resin fiber but contains the water retention fiber. In another embodiment (not shown) according to the present invention, the skin side layer 2a includes water-retaining fibers and thermoplastic resin fibers. Moreover, the non-skin side layer 2b of the embodiment according to the present invention includes a water retention fiber and a thermoplastic resin fiber. In another embodiment (not shown) according to the present invention, the non-skin side layer 2b contains thermoplastic resin fibers without water-holding fibers. The water-retaining fiber has a property of absorbing and retaining water. On the other hand, the thermoplastic resin fiber has a property that it is difficult to be compatible with water or it is difficult to retain water, for example, a property that a contact angle with ion-exchanged water (example: specific resistance value 10 MΩ · cm) is about 80 ° to 100 °. Have.
　本発明による実施形態の保水性繊維の成分の例には、セルロース系繊維が含まれる。セルロース系繊維の例には、天然セルロース繊維、再生セルロース繊維、精製セルロース繊維及び半合成セルロース繊維が含まれる。天然セルロース繊維の例には、植物繊維が含まれる。植物繊維の例には、種子毛繊維、じん皮繊維、葉脈繊維、果実繊維が含まれる。種子毛繊維の例には、コットンが含まれる。じん皮繊維の例には、麻が含まれる。葉脈繊維の例には、マニラ麻が含まれる。果実繊維の例には、やしが含まれる。コットンの例には、ヒルスツム種コットン、バルバデンセ種コットン、アルボレウム種コットン及びヘルバケウム種コットンが含まれる。ヒルスツム種コットンの例には、アップランドコットンが含まれる。また、コットンの例には、オーガニックコットン、プレオーガニックコットン（商標）、オーガニックでないコットンが含まれる。オーガニックコットンは、ＧＯＴＳ（Ｇｌｏｂａｌ　Ｏｒｇａｎｉｃ　Ｔｅｘｔｉｌｅ　Ｓｔａｎｄａｒｄ）の認証を受けたコットンを意味する。再生セルロース繊維の例には、レーヨンが含まれる。レーヨンの例には、ビスコースから得られるビスコースレーヨン、ポリノジック、モダール、及び、セルロースの銅アンモニア塩溶液から得られる銅アンモニアレーヨン（「キュプラ」とも称される。）が含まれる。精製セルロース繊維の例には、リヨセル、具体的には、パルプを、Ｎ－メチルモルホリンＮ－オキシドの水溶液に溶解させて紡糸原液（ドープ）とし、Ｎ－メチルモルホリンＮ－オキシドの希薄溶液中に押出して繊維としたものが含まれる。精製セルロースは、例えば、テンセル（商標）として市販されている。半合成セルロース繊維の例には、半合成セルロースが含まれる。半合成セルロースの例には、アセテート繊維が含まれる。アセテート繊維の例には、トリアセテート及びジアセテートが含まれる。中でも、保水性及び肌触りの観点から、天然セルロース繊維が好ましく、コットンがより好ましく、ヒルスツム種コットンが更に好ましい。 Examples of components of the water-retaining fiber of the embodiment according to the present invention include cellulosic fibers. Examples of cellulosic fibers include natural cellulosic fibers, regenerated cellulosic fibers, purified cellulosic fibers and semi-synthetic cellulosic fibers. Examples of natural cellulose fibers include vegetable fibers. Examples of plant fibers include seed hair fibers, bark fibers, vein fibers, and fruit fibers. Examples of seed hair fibers include cotton. Examples of dust fibers include hemp. Examples of vein fibers include Manila hemp. Examples of fruit fibers include palm. Examples of cotton include hirsutum varieties cotton, barbadense varieties cotton, arboreum varieties cotton and helbachemae varieties cotton. Examples of hirsutum cotton include upland cotton. In addition, examples of cotton include organic cotton, pre-organic cotton (trademark), and non-organic cotton. Organic cotton means cotton that has been certified by GOTS (Global Organic Textile Standard). Examples of regenerated cellulose fibers include rayon. Examples of rayon include viscose rayon obtained from viscose, polynosic, modal, and copper ammonia rayon (also referred to as "cupra") obtained from a solution of cellulose in a copper ammonia salt. As an example of the purified cellulose fiber, lyocell, specifically pulp, is dissolved in an aqueous solution of N-methylmorpholine N-oxide to prepare a spinning dope (dope), which is then added to a dilute solution of N-methylmorpholine N-oxide. It includes those extruded into fibers. Purified cellulose is commercially available, for example, as TENCEL (trademark). Examples of semi-synthetic cellulose fibers include semi-synthetic cellulose. Examples of semi-synthetic cellulose include acetate fibers. Examples of acetate fibers include triacetate and diacetate. Among them, from the viewpoint of water retention and touch, natural cellulose fibers are preferable, cotton is more preferable, and hirsutum type cotton is further preferable.
　本発明による実施形態の熱可塑性樹脂繊維の成分の例には、オレフィン系樹脂、ポリエステル系樹脂、ポリアミド系樹脂が含まれる。オレフィン系樹脂の例には、ポチエチレン（ＰＥ）、ポリプロピレン（ＰＰ）、エチレン－酢酸ビニル共重合体（ＥＶＡ）が含まれる。ポリエステル系樹脂の例には、ポリエチレンテレフタレート（ＰＥＴ）、ポリ乳酸（ＰＬＡ）が含まれる。ポリアミド系樹脂の例には、６－ナイロン等のポリアミド系樹脂が含まれる。熱可塑性樹脂繊維の構造の例には、複合繊維、中空タイプ、異形断面型繊維、立体捲縮繊維、分割繊維が含まれる。複合繊維の例には、芯鞘型繊維、サイド・バイ・サイド型繊維、島／海型繊維が含まれる。異形断面型繊維の例には、扁平断面繊維、Ｙ字形断面繊維、Ｃ字形断面繊維が含まれる。立体捲縮繊維の例には、潜在捲縮繊維、顕在捲縮繊維が含まれる。 Examples of components of the thermoplastic resin fiber according to the embodiment of the present invention include olefin resin, polyester resin, and polyamide resin. Examples of the olefin resin include polyethylene (PE), polypropylene (PP), and ethylene-vinyl acetate copolymer (EVA). Examples of the polyester resin include polyethylene terephthalate (PET) and polylactic acid (PLA). Examples of polyamide resins include polyamide resins such as 6-nylon. Examples of the structure of the thermoplastic resin fiber include a composite fiber, a hollow type fiber, a modified cross-section type fiber, a three-dimensional crimped fiber, and a split fiber. Examples of composite fibers include core-sheath fibers, side-by-side fibers, island / sea fibers. Examples of the modified cross-section fibers include flat cross-section fibers, Y-shaped cross-section fibers, and C-shaped cross-section fibers. Examples of the three-dimensional crimped fibers include latent crimped fibers and actual crimped fibers.
　本発明による実施形態では、肌側層２ａの保水性繊維含有割合は非肌側層２ｂの保水性繊維含有割合よりも高い。特に、本発明による実施形態では、肌側層２ａの保水性繊維含有割合は１００質量％である。なお、或る層の保水性繊維含有割合は、当該層の総質量に対する当該層に含まれる保水性繊維の質量で表される。 In the embodiment according to the present invention, the water retention fiber content ratio of the skin side layer 2a is higher than the water retention fiber content ratio of the non-skin side layer 2b. Particularly, in the embodiment according to the present invention, the water-holding fiber content ratio of the skin side layer 2a is 100% by mass. The water-retaining fiber content of a layer is represented by the mass of the water-retaining fiber contained in the layer with respect to the total mass of the layer.
　肌側層２ａの保水性繊維はオーガニックコットンを含むのが好ましい。肌側層２ａは保水性繊維を１００質量％含むのが好ましい。非肌側層２ｂの保水性繊維はオーガニックでないコットンを含むのが好ましい。非肌側層２ｂの熱可塑性樹脂繊維は複数の成分を含むのが好ましく、ＰＰ及びＰＥ又はＰＰ及びＰＥＴを含むのがより好ましい。非肌側層２ｂは保水性繊維を２０から８０質量％、熱可塑性樹脂繊維を８０から２０質量％含むのが好ましい。非肌側層２ｂの坪量は２０から４０ｇｓｍが好ましく、２５から３５ｇｓｍがより好ましい。肌側層２ａの坪量と非肌側層２ｂの坪量との比率は、１：１から１：１．３が好ましく、１：１．１５から１：１．２５がより好ましい。トップシート２の厚さ（厚さ方向Ｔ寸法）は０．２から１．５ｍｍが好ましく、０．２から１．０ｍｍがより好ましい。更に、トップシート２の保水性繊維含有割合（＝トップシート２の総質量に対する、肌側層２ａに含まれる保水性繊維の質量と非肌側層２ｂに含まれる保水性繊維の質量との合計の割合）は４０％以上であるのが好ましい。このようにすると、優れた肌触りが得られる。 The water-retaining fiber of the skin side layer 2a preferably contains organic cotton. The skin side layer 2a preferably contains 100% by mass of the water retaining fiber. The water-retaining fibers of the non-skin side layer 2b preferably include non-organic cotton. The thermoplastic resin fiber of the non-skin side layer 2b preferably contains a plurality of components, more preferably PP and PE or PP and PET. The non-skin side layer 2b preferably contains 20 to 80% by mass of water-retaining fibers and 80 to 20% by mass of thermoplastic resin fibers. 20-40 gsm is preferable and, as for the basis weight of the non-skin side layer 2b, 25-35 gsm is more preferable. The ratio of the basis weight of the skin side layer 2a to the basis weight of the non-skin side layer 2b is preferably 1: 1 to 1: 1.3, and more preferably 1: 1.15 to 1: 1.25. The thickness (T dimension in the thickness direction) of the top sheet 2 is preferably 0.2 to 1.5 mm, more preferably 0.2 to 1.0 mm. Further, the content ratio of the water-retaining fibers of the top sheet 2 (= the sum of the mass of the water-retaining fibers contained in the skin-side layer 2a and the mass of the water-retaining fibers contained in the non-skin-side layer 2b with respect to the total mass of the top sheet 2). Is preferably 40% or more. By doing so, excellent touch is obtained.
　本発明による実施形態のトップシート２の肌側層２ａはオーガニックコットンを１００質量％含み、その坪量は１０ｇｓｍである。また、本発明による実施形態の非肌側層２ｂは、オーガニックでないコットンを６０質量％、ＰＥ及びＰＰを４０質量％含み、その坪量は２０ｇｓｍである。更に、本発明による実施形態のトップシート２の厚さは０．３から０．５ｍｍである。 The skin side layer 2a of the top sheet 2 according to the embodiment of the present invention contains 100% by mass of organic cotton, and its basis weight is 10 gsm. The non-skin side layer 2b of the embodiment according to the present invention contains 60% by mass of non-organic cotton, 40% by mass of PE and PP, and has a basis weight of 20 gsm. Furthermore, the thickness of the topsheet 2 of the embodiment according to the present invention is 0.3 to 0.5 mm.
　本発明による実施形態のバックシート３は、液不透過性の不織布、合成樹脂フィルム、不織布及び合成樹脂フィルムの複合シート、又は、ＳＭＳ不織布から形成される。 The back sheet 3 of the embodiment according to the present invention is formed of a liquid impermeable nonwoven fabric, a synthetic resin film, a composite sheet of a nonwoven fabric and a synthetic resin film, or an SMS nonwoven fabric.
　図４は本発明による実施形態の吸収体４の模式的平面図を、図５は図４の線Ｖ－Ｖに沿った模式的断面図を、それぞれ示している。本発明による実施形態の吸収体４はＳＡＰシート４ａを備える。本発明による実施形態のＳＡＰシート４ａは、シート材４０と、シート材４０に保持された高吸収性ポリマー（ＳＡＰ）４４とを含む。本発明による実施形態のシート材４０は、互いに重ね合わされて熱シール部４３により互いに結合された第１の層４１及び第２の層４２を含む。本発明による実施形態の第１の層４１及び第２の層４２はそれぞれ、熱可塑性繊維を含む。本発明による実施形態のＳＡＰ４４は、粒子状をなしており、主として第１の層４１と第２の層４２との間に保持される。本発明による実施形態の吸収体４は、パルプを含むことなくＳＡＰを含む。本発明による別の実施形態（図示しない）では、吸収体４はパルプ及びＳＡＰを含む。なお、本発明による実施形態では、吸収体４ないしＳＡＰシート４ａの長さ方向、幅方向、及び厚さ方向は、吸収性物品１の長さ方向Ｌ、幅方向Ｗ、及び厚さ方向Ｔに一致する。また、図５において、点線は接着剤の層を示している。すなわち、図５に示される実施形態では、第２の層４２に対面する第１の層４１の表面上、及び、第１の層４１に対面する第２の層４２の表面上に接着剤層が設けられる。接着剤の例には、ホットメルト接着剤が含まれる。 FIG. 4 is a schematic plan view of the absorbent body 4 according to the embodiment of the present invention, and FIG. 5 is a schematic cross-sectional view taken along line VV of FIG. The absorber 4 according to the embodiment of the present invention includes the SAP sheet 4a. The SAP sheet 4a according to the embodiment of the present invention includes a sheet material 40 and a super absorbent polymer (SAP) 44 held by the sheet material 40. The sheet material 40 of the embodiment according to the present invention includes a first layer 41 and a second layer 42 which are superposed on each other and bonded to each other by a heat seal portion 43. The first layer 41 and the second layer 42 of the embodiment according to the present invention each include a thermoplastic fiber. The SAP 44 of the embodiment according to the present invention is in the form of particles and is mainly retained between the first layer 41 and the second layer 42. The absorbent body 4 of the embodiment according to the present invention includes SAP without including pulp. In another embodiment (not shown) according to the present invention, the absorbent body 4 comprises pulp and SAP. In the embodiment according to the present invention, the length direction, the width direction, and the thickness direction of the absorber 4 or the SAP sheet 4a are the length direction L, the width direction W, and the thickness direction T of the absorbent article 1. Match. Further, in FIG. 5, the dotted line indicates the adhesive layer. That is, in the embodiment shown in FIG. 5, the adhesive layer is formed on the surface of the first layer 41 facing the second layer 42 and on the surface of the second layer 42 facing the first layer 41. Is provided. Examples of adhesives include hot melt adhesives.
　本発明による実施形態の吸収体４ないしＳＡＰシート４ａは、第１の領域Ｒ１によって区画ないし分離された複数の第２の領域Ｒ２を備える。言い換えると、第２の領域Ｒ２はそれぞれ、第１の領域Ｒ１に包囲される。また、本発明による実施形態の第１の領域Ｒ１は格子状をなしている。したがって、吸収体４の周縁部は別として、第２の領域Ｒ２は四角形状ないし菱形状をなしている。また、本発明による実施形態では、吸収体４の周縁部は別として、第２の領域Ｒ２の大きさは互いに同じ（実質的に同じを含む）である。なお、本発明による実施形態では、吸収体４の周縁に沿う部分にも第１の領域Ｒ１が設けられる。 The absorber 4 or the SAP sheet 4a according to the embodiment of the present invention includes a plurality of second regions R2 partitioned or separated by the first region R1. In other words, each of the second regions R2 is surrounded by the first region R1. Further, the first region R1 of the embodiment according to the present invention has a lattice shape. Therefore, apart from the peripheral portion of the absorber 4, the second region R2 has a quadrangular or rhombic shape. Further, in the embodiment according to the present invention, the sizes of the second regions R2 are the same (including substantially the same) except for the peripheral portion of the absorber 4. In addition, in the embodiment according to the present invention, the first region R1 is also provided in a portion along the peripheral edge of the absorber 4.
　本発明による実施形態では、第１の領域Ｒ１におけるＳＡＰの坪量（例えばｇｓｍ）は、第２の領域Ｒ２におけるＳＡＰの坪量よりも小さい。特に本発明による実施形態の第１の領域Ｒ１におけるＳＡＰ坪量はゼロ（実質的にゼロを含む）である。第２の領域Ｒ２におけるＳＡＰ坪量は１００ｇｓｍ以上であるのが好ましい。第１の領域Ｒ１におけるＳＡＰ坪量と第２の領域Ｒ２におけるＳＡＰ坪量との差は１００ｇｓｍ以上であるのが好ましい。 In the embodiment according to the present invention, the SAP basis weight in the first region R1 (eg, gsm) is smaller than the SAP basis weight in the second region R2. In particular, the SAP basis weight in the first region R1 of the embodiment according to the present invention is zero (including substantially zero). The SAP basis weight in the second region R2 is preferably 100 gsm or more. The difference between the SAP grammage in the first region R1 and the SAP grammage in the second region R2 is preferably 100 gsm or more.
　本発明による実施形態の熱シール部４３は、互いに重ね合わされた第１の層４１及び第２の層４２に、吸収性物品１又は吸収体４の厚さ方向Ｔに圧力及び熱を印加して第１の層４１及び第２の層４２を互いに熱融着させることにより、形成される。その結果、第１の層４１及び第２の層４２が互いに結合されるとともに、ＳＡＰがＳＡＰシート４ａに確実に保持される。 The heat-sealing portion 43 of the embodiment according to the present invention applies pressure and heat to the first layer 41 and the second layer 42 that are superposed on each other in the thickness direction T of the absorbent article 1 or the absorbent body 4. It is formed by heat-sealing the first layer 41 and the second layer 42 to each other. As a result, the first layer 41 and the second layer 42 are bonded to each other, and the SAP is securely held by the SAP sheet 4a.
　本発明による実施形態のＳＡＰシート４ａは例えば次のようにして形成される。すなわち、搬送方向に搬送される第１の帯状体の第１の表面上に接着剤が適用される。次いで、第１の帯状体の第１の表面上にＳＡＰが適用されるとともに、第１の表面と反対側の第１の帯状体の第２の表面に負圧が適用される。本発明による実施形態では、図６に示されるようなプレート５０を介して、第２の表面に負圧が適用される。本発明による実施形態のプレート５０は、格子状をなすマスキング部５１と、マスキング部５１以外の開口５２と、を備える。その結果、第１の帯状体の第２の表面のうち開口５２に対面する領域に負圧が作用し、当該領域と反対側の第１の表面の領域にＳＡＰ坪量が比較的大きい領域、すなわち第２の領域Ｒ２が形成される。これに対し、第１の帯状体の第２の表面のうちマスキング部５１に対面する領域には負圧がほとんど作用せず、当該領域と反対側の第１の表面の領域にＳＡＰ坪量が比較的小さい領域、すなわち第１の領域Ｒ１が形成される。次いで、第１の帯状体の第１の表面上に、第２の帯状体が重ね合わされる。なお、第２の帯状体の、第１の帯状体に対面する面には接着剤があらかじめ適用されている。次いで、例えば、第２の帯状体から第１の帯状体に向けて圧力及び熱が印加され、熱シール部４３が形成される。その結果、第１の帯状体と第２の帯状体とが互いに結合され、第１の帯状体と第２の帯状体との間にＳＡＰが保持される。次いで、第１の帯状体及び第２の帯状体が、個々のＳＡＰシート４ａに切断される。この場合、第１の帯状体及び第２の帯状体はＳＡＰシート４ａの第１の層４１及び第２の層４２にそれぞれ対応する。なお、図６において、ＭＤは搬送方向を、ＣＤは搬送方向ＭＤに直行する方向を、それぞれ示している。搬送方向ＭＤ及び直交方向ＣＤは吸収性物品１ないし吸収体４の長さ方向Ｌ及び幅方向Ｗにそれぞれ対応する。 The SAP sheet 4a according to the embodiment of the present invention is formed as follows, for example. That is, the adhesive is applied on the first surface of the first strip that is transported in the transport direction. SAP is then applied on the first surface of the first strip, and negative pressure is applied to the second surface of the first strip opposite the first surface. In an embodiment according to the invention, a negative pressure is applied to the second surface via plate 50 as shown in FIG. The plate 50 according to the embodiment of the present invention includes a masking portion 51 having a lattice shape and an opening 52 other than the masking portion 51. As a result, negative pressure acts on a region of the second surface of the first strip facing the opening 52, and a region of the first surface on the opposite side of the region has a relatively large SAP basis weight, That is, the second region R2 is formed. On the other hand, the negative pressure hardly acts on the region of the second surface of the first strip facing the masking portion 51, and the SAP basis weight is on the region of the first surface on the opposite side of the region. A relatively small area, that is, the first area R1 is formed. Then, the second strip is superposed on the first surface of the first strip. An adhesive is applied in advance to the surface of the second strip that faces the first strip. Next, for example, pressure and heat are applied from the second strip toward the first strip, and the heat seal portion 43 is formed. As a result, the first band-shaped body and the second band-shaped body are bonded to each other, and SAP is held between the first band-shaped body and the second band-shaped body. Next, the first strip and the second strip are cut into individual SAP sheets 4a. In this case, the first strip and the second strip correspond to the first layer 41 and the second layer 42 of the SAP sheet 4a, respectively. In FIG. 6, MD indicates the transport direction, and CD indicates the direction orthogonal to the transport direction MD. The transport direction MD and the orthogonal direction CD correspond to the length direction L and the width direction W of the absorbent article 1 to the absorbent body 4, respectively.
　更に、吸収体４ないしＳＡＰシート４ａのうち幅方向Ｗ内側の区域を内側区域４ｉと称し、吸収体４ないしＳＡＰシート４ａのうち幅方向Ｗ外側の区域を外側区域４ｏと称すると、本発明による実施形態では、ＳＡＰシート４ａの内側区域４ｉに対応する第１の帯状体の部分へのＳＡＰの適用量がより多く設定され、ＳＡＰシート４ａの外側区域４ｏに対応する第１の帯状体の部分へのＳＡＰの適用量がより少なく設定される。また、ＳＡＰシート４ａの内側区域４ｉに対応する第１の帯状体の部分及び第２の帯状体の部分への接着剤の適用量がより多く設定され、ＳＡＰシート４ａの外側区域４ｏに対応する第１の帯状体の部分及び第２の帯状体の部分への接着剤の適用量がより少なく設定される。具体的には、例えば、内側区域４ｉに対応する第１の帯状体の部分及び第２の帯状体の部分にはそれぞれ、接着剤が全体的に、すなわち隙間なく、適用される。これに対し、外側区域４ｏに対応する第１の帯状体の部分及び第２の帯状体の部分にはそれぞれ、接着剤が部分的に、すなわち例えば直交方向ＣＤ（幅方向Ｗ）に互いに離間した複数の線の形で、適用される。 Furthermore, if the area inside the width direction W of the absorber 4 or the SAP sheet 4a is referred to as the inner area 4i, and the area outside the width direction W of the absorber 4 or the SAP sheet 4a is referred to as the outer area 4o, then according to the present invention. In the embodiment, a larger amount of SAP is applied to the portion of the first strip corresponding to the inner area 4i of the SAP sheet 4a, and the portion of the first strip corresponding to the outer area 4o of the SAP sheet 4a. The amount of SAP applied to is set to be smaller. Further, a larger amount of the adhesive is applied to the first strip-shaped portion and the second strip-shaped portion corresponding to the inner area 4i of the SAP sheet 4a, which corresponds to the outer area 4o of the SAP sheet 4a. The amount of adhesive applied to the first strip-shaped portion and the second strip-shaped portion is set to be smaller. Specifically, for example, the adhesive is applied entirely, that is, without a gap, to each of the first strip-shaped portion and the second strip-shaped portion corresponding to the inner region 4i. On the other hand, the adhesive is partially separated from the first strip-shaped portion and the second strip-shaped portion corresponding to the outer region 4o, that is, in the orthogonal direction CD (width direction W), for example. Applied in the form of multiple lines.
　その結果、本発明による実施形態では、内側区域４ｉ内に位置する第２の領域Ｒ２の部分におけるＳＡＰ坪量は、外側区域４ｏ内に位置する第２の領域Ｒ２の部分におけるＳＡＰ坪量よりも大きい。図４に示される例では、部分ＰｉにおけるＳＡＰ坪量は部分ＰｏにおけるＳＡＰ坪量よりも大きい。 As a result, in the embodiment according to the present invention, the SAP basis weight in the portion of the second region R2 located in the inner section 4i is larger than the SAP basis weight in the portion of the second region R2 located in the outer section 4o. large. In the example shown in FIG. 4, the SAP basis weight of the portion Pi is larger than the SAP basis weight of the portion Po.
　したがって、包括的に表現すると、本発明による実施形態では、幅方向Ｗのより内側に位置する第２の領域Ｒ２内の部分におけるＳＡＰ坪量は、幅方向Ｗのより外側に位置する第２の領域Ｒ２内の部分におけるＳＡＰ坪量よりも大きい。言い換えると、本発明による実施形態では、第２の領域Ｒ２のＳＡＰ坪量の幅方向Ｗの分布が不均一である。別の実施形態（図示しない）では、第２の領域Ｒ２のＳＡＰ坪量の幅方向Ｗの分布が均一である（実質的に均一を含む）。一方、本発明による実施形態では、第１の領域Ｒ１のＳＡＰ坪量の幅方向Ｗの分布は均一である（実質的に均一を含む）。なお、本発明による実施形態では、第１の領域Ｒ１のＳＡＰ坪量の長さ方向Ｌの分布及び第２の領域Ｒ２のＳＡＰ坪量の長さ方向Ｌの分布はいずれも、均一である（実質的に均一を含む）。 Therefore, when expressed comprehensively, in the embodiment according to the present invention, the SAP basis weight in the portion in the second region R2 located on the inner side in the width direction W is equal to the SAP basis weight on the outer side in the width direction W. It is larger than the SAP grammage in the region R2. In other words, in the embodiment according to the present invention, the distribution of the SAP basis weight of the second region R2 in the width direction W is non-uniform. In another embodiment (not shown), the SAP basis weight of the second region R2 has a uniform distribution in the width direction W (including substantially uniform). On the other hand, in the embodiment according to the present invention, the distribution of the SAP basis weight of the first region R1 in the width direction W is uniform (including substantially uniform). In the embodiment according to the present invention, the distribution of the SAP grammage of the first region R1 in the length direction L and the distribution of the SAP grammage of the second region R2 in the length direction L are both uniform ( (Including substantially uniform).
　一方、本発明による実施形態の熱シール部４３は、第１の領域Ｒ１内に設けられる。本発明による実施形態の熱シール部４３は第２の領域Ｒ２内には設けられない。 On the other hand, the heat seal part 43 of the embodiment according to the present invention is provided in the first region R1. The heat seal portion 43 of the embodiment according to the present invention is not provided in the second region R2.
　本発明による実施形態の熱シール部４３は、第１の領域Ｒ１内を延びる仮想線に沿って設けられる。特に本発明による実施形態の仮想線は図７に示されるように、長さ方向Ｌに互いに離間しつつそれぞれジグザグをなす複数の仮想線４５を含む。別の実施形態（図示しない）では、仮想線４５は長さ方向Ｌに互いに離間しつつそれぞれ波状をなす。また、本発明による実施形態では熱シール部４３は、仮想線４５の長さ方向に不連続である。その結果、第１の領域Ｒ１には、熱シール部４３が設けられる部分と、熱シール部４３が設けられない部分とが含まれる。言い換えると、本発明による実施形態の熱シール部４３は、第１の領域Ｒ１内に部分的に設けられる。 The heat seal portion 43 according to the embodiment of the present invention is provided along an imaginary line extending in the first region R1. In particular, as shown in FIG. 7, the imaginary line of the embodiment according to the present invention includes a plurality of imaginary lines 45 that are spaced apart from each other in the length direction L and each form a zigzag. In another embodiment (not shown), the imaginary lines 45 are spaced apart from each other in the lengthwise direction L and have a wavy shape. Further, in the embodiment according to the present invention, the heat seal portion 43 is discontinuous in the length direction of the imaginary line 45. As a result, the first region R1 includes a portion where the heat seal portion 43 is provided and a portion where the heat seal portion 43 is not provided. In other words, the heat seal part 43 of the embodiment according to the present invention is partially provided in the first region R1.
　更に、本発明による実施形態では、幅方向Ｗのより外側に位置する第２の領域Ｒ２の面積は、幅方向Ｗのより内側に位置する第２の領域Ｒ２の面積よりも小さい。図４に示される例では、第２の領域Ｒ２ｏの面積は第２の領域Ｒ２ｉの面積よりも小さい。より外側の第２の領域Ｒ２ｏの面積は、より内側の第２の領域Ｒ２ｉの７５％以下であるのが好ましい。 Further, in the embodiment according to the present invention, the area of the second region R2 located on the outer side in the width direction W is smaller than the area of the second region R2 located on the inner side in the width direction W. In the example shown in FIG. 4, the area of the second region R2o is smaller than the area of the second region R2i. The area of the outer second region R2o is preferably 75% or less of the area of the inner second region R2i.
　さて、本発明による実施形態では、尿などの液体は、まずトップシート２の肌側層２ａに吸収され、次いでトップシート２の非肌側層２ｂを介して吸収体４に到り、吸収又は保持される。この場合、トップシート２の肌側層２ａの非肌側に、熱可塑性樹脂繊維を含む非肌側層２ｂが設けられるので、肌側層２ａに吸収された液体が良好に、非肌側層２ｂに引き込まれる。その結果、肌側層２ａのドライ性が高められる。このため、トップシート２の毛羽立ちがより制限される。 Now, in the embodiment according to the present invention, a liquid such as urine is first absorbed by the skin-side layer 2a of the top sheet 2, and then reaches the absorber 4 via the non-skin-side layer 2b of the top sheet 2, and is absorbed or Retained. In this case, since the non-skin side layer 2b containing the thermoplastic resin fiber is provided on the non-skin side of the skin side layer 2a of the top sheet 2, the liquid absorbed in the skin side layer 2a is favorably formed. 2b. As a result, the dryness of the skin side layer 2a is improved. Therefore, the fuzz of the top sheet 2 is further restricted.
　また、本発明による実施形態では、トップシート２の非肌側層２ｂとバックシート３とが熱融着部分１１によって互いに接合される。非肌側層２ｂは熱可塑性樹脂繊維を含むので、トップシート２とバックシート３との間の接合性がより高められる。 Further, in the embodiment according to the present invention, the non-skin side layer 2b of the top sheet 2 and the back sheet 3 are joined to each other by the heat-sealing portion 11. Since the non-skin side layer 2b contains the thermoplastic resin fiber, the bondability between the top sheet 2 and the back sheet 3 is further enhanced.
　更に、本発明による実施形態では、吸収体４がＳＡＰを含んでいるので、吸収体４に吸収された液体がトップシート２に戻るのが制限されている。このため、トップシート２のドライ性が高められ、トップシート２の毛羽立ちがより制限される。 Further, in the embodiment according to the present invention, since the absorber 4 contains SAP, the liquid absorbed by the absorber 4 is restricted from returning to the topsheet 2. Therefore, the dryness of the top sheet 2 is improved, and the fluffing of the top sheet 2 is further restricted.
　更に、本発明による実施形態の吸収体４では、第１の領域Ｒ１におけるＳＡＰ坪量が第２の領域Ｒ２のＳＡＰ坪量よりも小さい。その結果、第１の領域Ｒ１（第２の領域Ｒ２との境界を含む）がより容易に折り曲げとなる。このため、第１の領域Ｒ１が折り曲げ起点となり、吸収体４ないし吸収性物品１がより容易に変形可能となる。その結果、吸収性物品１が着用者の肌により確実にフィットし続けることが可能となる。このため、トップシート２に作用する圧力が集中するのが制限され、着用者の肌への当たりがより均一になる。これにより、トップシート２に対する擦れ又は摩擦が低減されるので、トップシート２の毛羽立ちがより制限される。したがって、優れた肌触りが維持されつつ、着用者が違和感を覚えるのがより確実に制限される。 Further, in the absorbent body 4 according to the embodiment of the present invention, the SAP basis weight in the first region R1 is smaller than the SAP basis weight in the second region R2. As a result, the first region R1 (including the boundary with the second region R2) is bent more easily. Therefore, the first region R1 serves as a folding start point, and the absorber 4 or the absorbent article 1 can be more easily deformed. As a result, the absorbent article 1 can continue to be more surely fitted to the wearer's skin. Therefore, the concentration of the pressure acting on the top sheet 2 is limited, and the contact with the wearer's skin becomes more uniform. As a result, friction or friction with respect to the top sheet 2 is reduced, so that the fluffing of the top sheet 2 is further restricted. Therefore, the wearer's feeling of discomfort is more surely restricted while maintaining excellent touch.
　更に、本発明による実施形態では、第１の領域Ｒ１におけるＳＡＰ坪量がゼロであるので、吸収体４ないし吸収性物品１が第１の領域Ｒ１において、より容易に折り曲げ可能となる。 Further, in the embodiment according to the present invention, since the SAP basis weight in the first region R1 is zero, the absorbent body 4 or the absorbent article 1 can be more easily folded in the first region R1.
　更に、本発明による実施形態では、熱シール部４３が第１の領域Ｒ１に設けられる。その結果、熱シール部４３が折り曲げ起点となり、吸収体４ないし吸収性物品１がより容易に変形可能となる。 Further, in the embodiment according to the present invention, the heat seal portion 43 is provided in the first region R1. As a result, the heat-sealing portion 43 serves as a bending start point, and the absorber 4 or the absorbent article 1 can be deformed more easily.
　更に、本発明による実施形態では、熱シール部４３が第１の領域Ｒ１内に部分的に設けられるので、吸水によるＳＡＰの膨張が熱シール部４３によって抑制されるのが制限される。なお、この場合のＳＡＰの膨張は、厚さ方向Ｔの膨張と、長さ方向Ｌ及び幅方向Ｗの膨張との一方又は両方が含まれる。また、液体の拡散が熱シール部４３によって妨げられるのが制限される。したがって、液体がより速やかに吸収される。 Further, in the embodiment according to the present invention, since the heat seal portion 43 is partially provided in the first region R1, it is limited that the SAP expansion due to water absorption is suppressed by the heat seal portion 43. The SAP expansion in this case includes one or both of the expansion in the thickness direction T and the expansion in the length direction L and the width direction W. Further, the diffusion of the liquid is restricted from being hindered by the heat seal portion 43. Therefore, the liquid is absorbed more quickly.
　更に、本発明による実施形態では、熱シール部４３が、長さ方向Ｌに互いに離間しつつそれぞれジグザグ状又は波状をなす複数の仮想線４５に沿って設けられるので、吸収体４がより複雑な形状に変形可能となる。その結果、吸収性物品１が着用者の肌により確実にフィットし続けることが可能となる。 Furthermore, in the embodiment according to the present invention, since the heat-sealing portions 43 are provided along the plurality of imaginary lines 45 that are zigzag-shaped or wavy while being separated from each other in the lengthwise direction L, the absorber 4 is more complicated. It can be transformed into a shape. As a result, the absorbent article 1 can continue to be more surely fitted to the wearer's skin.
　更に、本発明による実施形態では、第１の領域Ｒ１が格子状をなしているので、吸収体４が複数の方向に沿って変形可能となり、このため吸収体４がより複雑な形状に変形可能となる。したがって、この観点からも、吸収性物品が着用者の肌により確実にフィットし続けることが可能となる。一例では、図４に示された吸収体４の左側部分が着用者の前側に位置し、右側部分が着用者の後側に位置するように、吸収性物品１が使用される。その結果、第１の領域Ｒ１に沿って折り曲がった吸収体４ないし吸収性物品１が着用者の肌の凹凸により確実にフィットすることが可能となる。 Further, in the embodiment according to the present invention, since the first region R1 has a lattice shape, the absorber 4 can be deformed along a plurality of directions, and thus the absorber 4 can be deformed into a more complicated shape. Becomes Therefore, also from this point of view, the absorbent article can continue to be more surely fitted to the wearer's skin. In one example, the absorbent article 1 is used such that the left side portion of the absorbent body 4 shown in FIG. 4 is located on the front side of the wearer and the right side portion is located on the back side of the wearer. As a result, the absorber 4 or the absorbent article 1 bent along the first region R1 can be more surely fitted to the unevenness of the wearer's skin.
　更に、本発明による実施形態では、幅方向Ｗのより内側に位置する第２の領域Ｒ２内の部分におけるＳＡＰ坪量が、幅方向Ｗのより外側に位置する第２の領域Ｒ２内の部分におけるＳＡＰ坪量よりも大きいので、吸収体４のＳＡＰが吸水したときに、幅方向Ｗのより内側に位置する吸収体４の部分が、厚さ方向Ｔにより大きく膨張することが可能となる。その結果、吸収性物品１が着用者の肌により確実にフィットし続けることが可能となる。また、幅方向Ｗのより外側に位置する第２の領域Ｒ２内の部分におけるＳＡＰ坪量が、幅方向Ｗのより内側に位置する第２の領域Ｒ２内の部分におけるＳＡＰ坪量よりも小さいので、吸収体４のＳＡＰが吸水したときに、幅方向Ｗのより外側に位置する吸収体４の部分が、厚さ方向Ｔにより小さく膨張することが可能となる。その結果、ＳＡＰの膨張により吸収性物品１が着用者の動きに追従しにくくなるのが制限される。 Further, in the embodiment according to the present invention, the SAP basis weight in the portion in the second region R2 located on the inner side in the width direction W is in the portion in the second region R2 located on the outer side in the width direction W. Since it is larger than the SAP basis weight, when the SAP of the absorbent body 4 absorbs water, the portion of the absorbent body 4 located on the inner side in the width direction W can largely expand in the thickness direction T. As a result, the absorbent article 1 can continue to be more surely fitted to the wearer's skin. Further, since the SAP basis weight of the portion in the second region R2 located on the outer side in the width direction W is smaller than the SAP basis weight of the portion in the second region R2 located on the inner side in the width direction W, When the SAP of the absorbent body 4 absorbs water, the portion of the absorbent body 4 located on the outer side in the width direction W can expand to a smaller extent in the thickness direction T. As a result, the expansion of the SAP prevents the absorbent article 1 from being difficult to follow the movement of the wearer.
　更に、本発明による実施形態では、幅方向Ｗのより外側に位置する第２の領域Ｒ２の面積が、幅方向Ｗのより内側に位置する第２の領域Ｒ２の面積よりも小さいので、幅方向Ｗ外側において、吸収性物品１がより複雑な形状に変形可能となる。したがって、トップシート２が着用者の動きにより確実に追従することが可能となり、吸収性物品１が着用者の肌により確実にフィットし続けることが可能となる。 Further, in the embodiment according to the present invention, the area of the second region R2 located on the outer side in the width direction W is smaller than the area of the second region R2 located on the inner side in the width direction W. On the outer side of W, the absorbent article 1 can be deformed into a more complicated shape. Therefore, it becomes possible for the top sheet 2 to follow the wearer's movements reliably, and the absorbent article 1 can continue to be more surely fitted to the wearer's skin.
　図９は、本発明による別の実施形態の吸収体４の模式的平面図を示している。図９に示される実施形態でも、幅方向Ｗのより外側に位置する第２の領域ＲＷｏの面積は、幅方向Ｗのより内側に位置する第２の領域Ｒ２ｉの面積よりも小さい。したがって、この実施形態でも、幅方向Ｗ外側において、吸収性物品１がより複雑な形状に変形可能となる。ただし、図９に示される例では、幅方向Ｗのより外側に位置する第２の領域ＲＷｏの形状と、幅方向Ｗのより内側に位置する第２の領域Ｒ２ｉの形状とは相似である（実質的に相似を含む）。その結果、幅方向Ｗ内側の第１の領域Ｒ１と、幅方向Ｗ外側の第１の領域Ｒ１とを同一方向に沿って形成することができるので、吸収体４ないしＳＡＰシート４ａの形成がより容易になる。 FIG. 9 shows a schematic plan view of an absorber 4 according to another embodiment of the present invention. Also in the embodiment shown in FIG. 9, the area of the second region RWo located on the outer side in the width direction W is smaller than the area of the second region R2i located on the inner side in the width direction W. Therefore, also in this embodiment, the absorbent article 1 can be deformed into a more complicated shape on the outer side in the width direction W. However, in the example shown in FIG. 9, the shape of the second region RWo located on the outer side in the width direction W and the shape of the second region R2i located on the inner side in the width direction W are similar ( Including substantially similar). As a result, the first region R1 on the inner side in the width direction W and the first region R1 on the outer side in the width direction W can be formed in the same direction, so that the absorber 4 or the SAP sheet 4a can be formed more easily. It will be easier.
　本発明による別の実施形態（図示しない）の吸収性物品は、トップシート１と吸収体４との間に配置されたセカンドシートを更に備える。セカンドシートは例えばシート状の不織布から形成される。また、セカンドシートは、一例では保水性繊維を含むことなく熱可塑性樹脂繊維を含み、別の例では保水性繊維及び熱可塑性樹脂繊維を含む。本発明による更に別の実施形態（図示しない）の吸収性物品は、吸収体４とバックシート３との間に配置されたティッシュを更に備える。ティッシュは例えばシート状の不織布から形成される。また、ティッシュは、一例では保水性繊維を含むことなく熱可塑性樹脂繊維を含み、別の例では保水性繊維及び熱可塑性樹脂繊維を含む。本発明による更に別の実施形態（図示しない）の吸収性物品は、吸収体４とバックシート３との間に配置された別の吸収体を更に備える。この別の吸収体は、一例では、ＳＡＰを含むことなくパルプを含み、別の例ではＳＡＰ及びパルプを含む。 An absorbent article according to another embodiment (not shown) according to the present invention further includes a second sheet arranged between the top sheet 1 and the absorbent body 4. The second sheet is formed of, for example, a sheet-shaped non-woven fabric. In addition, the second sheet includes the thermoplastic resin fibers without including the water retaining fibers in one example, and includes the water retaining fibers and the thermoplastic resin fibers in another example. The absorbent article according to yet another embodiment (not shown) according to the present invention further includes a tissue disposed between the absorbent body 4 and the backsheet 3. The tissue is formed of, for example, a sheet-shaped nonwoven fabric. Further, the tissue contains thermoplastic resin fibers without containing water-holding fibers in one example, and contains water-holding fibers and thermoplastic resin fibers in another example. The absorbent article according to still another embodiment (not shown) according to the present invention further includes another absorbent body arranged between the absorbent body 4 and the back sheet 3. This alternative absorbent comprises pulp without SAP in one example, and SAP and pulp in another example.
　本発明による更に別の実施形態（図示しない）では、ＳＡＰシート４ａは、長さ方向Ｌに延びる１又は複数の折り畳み線に沿って折り畳まれた状態で、トップシート２とバックシート３との間に配置される。このようにすると、折り重ねられたＳＡＰシート４ａの部分同士間に空間が形成され、この空間内に液体を保持することが可能となる。なお、上述した本発明による実施形態では、ＳＡＰシート４ａは折り畳まれていない。 In still another embodiment (not shown) according to the present invention, the SAP sheet 4a is folded along one or a plurality of folding lines extending in the length direction L and between the top sheet 2 and the back sheet 3. Is located in. By doing so, a space is formed between the folded portions of the SAP sheet 4a, and the liquid can be retained in this space. Note that, in the above-described embodiment according to the present invention, the SAP sheet 4a is not folded.
　本願は日本特許出願第２０１８－２０５５９９号の利益を主張し、その開示全体はここに援用される。 This application claims the benefit of Japanese Patent Application No. 2018-205599, the entire disclosure of which is incorporated herein by reference.
　１　　吸収性物品
　２　　トップシート
　３　　バックシート
　４　　吸収体
　４０　　シート材
　４４　　高吸収性ポリマー
　４ａ　　ＳＡＰシート
　Ｒ１　　第１の領域
　Ｒ２　　第２の領域 1 Absorbent Article 2 Top Sheet 3 Back Sheet 4 Absorber 40 Sheet Material 44 Super Absorbent Polymer 4a SAP Sheet R1 First Region R2 Second Region

Claims (10)

  1. 　保水性繊維を含む、液透過性のトップシートと、
    　液不透過性のバックシートと、
    　前記トップシートと前記バックシートとの間に配置された吸収体と、
    を備えた吸収性物品であって、
    　前記吸収体は、シート材と、前記シート材に保持された高吸収性ポリマーと、を含むＳＡＰシートを備え、
    　前記ＳＡＰシートは、第１の領域によって区画された複数の第２の領域を備え、
    　前記第１の領域における前記高吸収性ポリマーの坪量は前記第２の領域における前記高吸収性ポリマーの坪量よりも小さい、
    吸収性物品。     A liquid-permeable topsheet containing water-retaining fibers,
    Liquid impermeable back sheet,
    An absorber arranged between the top sheet and the back sheet,
    An absorbent article comprising:
    The absorbent body includes a SAP sheet including a sheet material and a superabsorbent polymer held by the sheet material,
    The SAP sheet includes a plurality of second regions divided by a first region,
    The basis weight of the superabsorbent polymer in the first region is less than the basis weight of the superabsorbent polymer in the second region,
    Absorbent article.
  2. 　前記第１の領域における前記高吸収性ポリマーの坪量はゼロである、請求項１に記載の吸収性物品。 The absorbent article according to claim 1, wherein the basis weight of the superabsorbent polymer in the first region is zero.
  3. 　前記シート材は、互いに重ね合わされて熱シール部により互いに結合された一対の層を含み、
    　前記熱シール部は、前記第１の領域内に設けられている、
    請求項１又は２に記載の吸収性物品。     The sheet material includes a pair of layers that are superposed on each other and bonded to each other by a heat seal portion,
    The heat seal part is provided in the first region,
    The absorbent article according to claim 1 or 2.
  4. 　前記熱シール部は、前記第１の領域内に部分的に設けられている、請求項３に記載の吸収性物品。 The absorbent article according to claim 3, wherein the heat seal portion is partially provided in the first region.
  5. 　前記熱シール部は、前記吸収性物品の長さ方向に互いに離間しつつそれぞれジグザグ状又は波状をなす複数の仮想線に沿って設けられている、請求項３又は４に記載の吸収性物品。 The absorbent article according to claim 3 or 4, wherein the heat seal portion is provided along a plurality of imaginary lines that are zigzag-shaped or wavy, respectively, while being separated from each other in the lengthwise direction of the absorbent article.
  6. 　前記吸収性物品の幅方向のより内側に位置する前記第２の領域内の部分における高吸収性ポリマーの坪量は、前記吸収性物品の幅方向のより外側に位置する前記第２の領域内の部分における高吸収性ポリマーの坪量よりも大きい、請求項１から５までのいずれか１つに記載の吸収性物品。 The basis weight of the superabsorbent polymer in the portion in the second region located more inside in the width direction of the absorbent article is within the second region located more outside in the width direction of the absorbent article. The absorbent article according to any one of claims 1 to 5, which has a higher basis weight than the superabsorbent polymer in the portion.
  7. 　前記吸収性物品の幅方向のより外側に位置する前記第２の領域の面積は、前記吸収性物品の幅方向のより内側に位置する前記第２の領域の面積よりも小さい、請求項１から６までのいずれか１つに記載の吸収性物品。 The area of the second region located on the outer side in the width direction of the absorbent article is smaller than the area of the second region located on the inner side in the width direction of the absorbent article, The absorbent article according to any one of 6 to 6.
  8. 　前記第１の領域が格子状をなしている、請求項１から７までのいずれか１つに記載の吸収性物品。 The absorbent article according to any one of claims 1 to 7, wherein the first region has a lattice shape.
  9. 　前記トップシートが互いに積層された肌側層及び非肌側層を備え、前記肌側層の保水性繊維含有割合は前記非肌側層の保水性繊維含有割合よりも高い、請求項１から８までのいずれか１つに記載の吸収性物品。 The said topsheet is provided with the skin side layer and non-skin side layer which were laminated | stacked mutually, The water retention fiber content rate of the said skin side layer is higher than the water retention fiber content rate of the said non skin side layer, The claim | item 1 to 8 The absorbent article according to any one of items 1 to 7.
  10. 　前記肌側層の保水性繊維含有割合は１００％である、請求項９に記載の吸収性物品。 The absorbent article according to claim 9, wherein the content rate of the water-retaining fiber in the skin side layer is 100%.
PCT/JP2019/030597 2018-10-31 2019-08-02 Absorbent article WO2020090178A1 (en)

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