WO2017081899A1 - 吸収性物品 - Google Patents

吸収性物品 Download PDF

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Publication number
WO2017081899A1
WO2017081899A1 PCT/JP2016/073554 JP2016073554W WO2017081899A1 WO 2017081899 A1 WO2017081899 A1 WO 2017081899A1 JP 2016073554 W JP2016073554 W JP 2016073554W WO 2017081899 A1 WO2017081899 A1 WO 2017081899A1
Authority
WO
WIPO (PCT)
Prior art keywords
region
sheet
absorbent article
width direction
flap
Prior art date
Application number
PCT/JP2016/073554
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
西谷　和也
英之 木下
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 CN201680066908.XA priority Critical patent/CN108348366B/zh
Priority to KR1020187014144A priority patent/KR101935221B1/ko
Publication of WO2017081899A1 publication Critical patent/WO2017081899A1/ja

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/47—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
    • A61F13/45—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
    • A61F13/475—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means
    • A61F13/4751—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means the means preventing fluid flow in a transversal direction
    • A61F13/4755—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means the means preventing fluid flow in a transversal direction the means being a flat barrier on or inside the absorbent article, e.g. backsheet wrapped around the edges
    • 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
    • A61F13/472—Sanitary towels, incontinence pads or napkins specially adapted for female use
    • 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
    • A61F13/475—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means
    • A61F13/4751—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means the means preventing fluid flow in a transversal direction
    • A61F13/4757—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means the means preventing fluid flow in a transversal direction the means being located outside the perimeter of the absorbent core
    • 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
    • A61F13/476—Sanitary towels, incontinence pads or napkins characterised by encircling the crotch region of the undergarment
    • 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
    • A61F13/56—Supporting or fastening means
    • A61F13/5605—Supporting or fastening means specially adapted for sanitary napkins or the like
    • A61F13/5611—Supporting or fastening means specially adapted for sanitary napkins or the like using fastening strips, e.g. adhesive, on the undergarment-facing side
    • 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
    • A61F2013/4706—Sanitary towels, incontinence pads or napkins enlarged in the anal area

Definitions

  • the present invention relates to an absorbent article such as a sanitary napkin.
  • An absorbent article such as a napkin may be used while the wearer is sleeping.
  • an absorbent article in the state where it laid down, after-leakage tends to occur. Therefore, the absorbent article which has the hip flap which prevents a back leak is disclosed as absorbent articles, such as a napkin (for example, refer patent document 1).
  • the absorbent article of Patent Document 1 includes a crotch region, a rear region located on the rear side of the crotch region, an absorbent core disposed in the crotch region and the rear side region, and an absorbent core in the crotch region in the rear side region
  • a hip flap extending outward in the width direction from the outer edge of the.
  • a support layer is disposed on the hip flap. The support layer is arrange
  • the hip flap of the absorbent article of Patent Document 1 is arranged so as to cover the side of the wearer's buttocks while the wearer is sleeping.
  • body pressure from either the left or right buttock side may be biased due to turning over or the like.
  • the wearer turns over and the body pressure from the right buttocks increases, the right absorbent core is pressed by the right buttocks and moves to the right.
  • a force is applied in a direction in which the support layer that overlaps the absorbent core moves to the right as the absorbent core moves.
  • the outer edge of the support layer of the absorbent article may not be moved to the right side by being pressed by the collar, and the absorbent core may not be moved and may be compressed.
  • the absorbent core When the absorbent core is repeatedly compressed, a part of the absorbent core may become hard or a part of the absorbent core may be twisted. As a result, the absorber may be deformed in an unintended manner and leakage may occur.
  • the surface of an absorbent article may become hard when a part of absorption core becomes hard, and a feeling of mounting may deteriorate.
  • the present disclosure has been made in view of the above-described problems, and can suppress unintended deformation of the absorbent body when the wearer's posture is repeatedly changed by turning over, and can suppress occurrence of leakage and deterioration of wearing feeling.
  • An object is to provide an absorbent article.
  • the absorbent article according to the present disclosure includes a front-rear direction (front-rear direction L) and a width direction (width direction W) orthogonal to each other, a crotch region (inseam region S1) disposed in the crotch of the wearer, A rear side region (rear side region S3) located on the rear side, an absorbent core (absorbent core 31) disposed in the crotch region and the rear side region, and the absorbent core in the crotch region in the rear side region
  • FIG. 2 is a cross-sectional view of the absorbent article along the line AA in FIG. 1.
  • FIG. 2 is a schematic cross-sectional view of the absorbent article in use along the line AA in FIG. 1.
  • the absorbent article may be any absorbent article, such as a panty liner (corimono sheet), a sanitary napkin, or an incontinence pad.
  • a disposable sanitary napkin will be described as an example of an absorbent article.
  • FIG. 1 is a plan view of the absorbent article in one embodiment.
  • FIG. 2 is a plan view of the absorbent article as seen from the side opposite to FIG.
  • FIG. 3 is a cross-sectional view of the absorbent article taken along line AA in FIG.
  • the absorbent article 1 has a front-rear direction L, a width direction W, and a thickness direction T.
  • the front-rear direction L is a direction extending from the front side (abdomen side) of the wearer to the rear side (back side), or a direction extending from the rear side of the wearer to the front side.
  • the width direction W is a direction orthogonal to the front-rear direction L.
  • the thickness direction T is a direction extending from the skin facing surface side T1 of the wearer to the non-skin facing surface side T2, and is a direction orthogonal to the front-rear direction L and the width direction W.
  • the skin facing surface side T1 corresponds to the side facing the wearer's skin when in use.
  • the non-skin facing surface side T2 corresponds to a side opposite to the skin facing surface side T1, that is, a side facing away from the wearer's skin when used.
  • the absorbent article 1 has a crotch region S1, a front side region S2, and a rear side region S3.
  • the crotch region S1 is a region facing a wearer's excretion opening (for example, vaginal opening).
  • the crotch region S1 is located at the crotch part of the underwear. That is, the crotch region is a region disposed between the wearer's crotch, that is, between the wearer's legs.
  • the front side area S2 is located in front of the crotch area S1.
  • the front edge of the front region S2 defines the front edge of the absorbent article 1.
  • the rear side region S3 is located on the rear side of the crotch region S1.
  • the rear edge of the rear side region S3 defines the rear edge of the absorbent article 1.
  • the length in the front-rear direction L of the rear side region S3 may be longer than the length in the front-rear direction L of the crotch region S1.
  • a wing 3 described later may be provided in the crotch region S1. Further, a hip flap 4 swelled outward in the width direction W may be provided in the rear side region S3.
  • the front edge of the wing 3 is defined by the root of the wing 3, and corresponds to the portion located on the front side of the two portions that are recessed most in the width direction W.
  • the front edge of the wing 3 may define a boundary between the crotch region S1 and the front side region S2.
  • the rear edge of the wing 3 is defined by the root of the wing 3, and corresponds to a portion located on the rear side of the two portions that are recessed most in the width direction W.
  • the rear edge of the wing 3 may define the boundary between the crotch region S1 and the rear side region S3.
  • a region between the front end edge of the wing 3 and the rear end edge of the wing 3 in the front-rear direction L is referred to as a “wing region”.
  • the crotch region S1 is substantially the same region as the wing region. Therefore, it should be noted that in the present specification, the term “inseam area S1” can be read as “wing area”.
  • the absorbent article 1 has a skin sheet 10, a non-skin sheet 20, and an absorber 30.
  • the skin sheet 10 is provided on the skin facing surface side T ⁇ b> 1 from the absorbent body 30.
  • the non-skin surface sheet 20 is provided closer to the non-skin facing surface side T2 than the absorber 30.
  • the absorber 30 is provided between the skin sheet 10 and the non-skin sheet 20.
  • the skin sheet 10 may have a surface sheet 11 and a side sheet 12.
  • the top sheet 11 is a liquid-permeable sheet that transmits liquid such as body fluid.
  • the top sheet 11 covers the central portion of the absorber 30 in the width direction W.
  • the topsheet 11 may extend in the front-rear direction L from the front side region S2 to the rear side region S3.
  • the top sheet 11 is made of any sheet-like material having a structure that allows liquid to permeate, such as a nonwoven fabric, a woven fabric, a perforated plastic sheet, and a mesh sheet. Either natural fibers or chemical fibers can be used as the woven or non-woven material.
  • the side sheet 12 covers the outer edge of the top sheet 11 in the width direction W, and extends outward in the width direction W from the top sheet 11.
  • the absorbent article 1 has the side sheet 12
  • the absorbent article 1 does not need to have the side sheet 12.
  • the top sheet 11 may cover the entire absorber 30.
  • the side sheet 12 can be made of the same material as the top sheet 11. However, in order to prevent the body fluid adhering to the top sheet 11 from getting over the side sheet 12 and leaking outside the absorbent article 1 in the width direction W, the side sheet 12 has hydrophobicity or water repellency. It is preferable to have.
  • the side seat 12 may be disposed on the outer edge of the absorbent body 30 in the width direction W, the wing 3 and the hip flap 4.
  • the non-skin surface sheet 20 is a liquid-impermeable sheet.
  • the non-skin sheet 20 may be a polyethylene sheet, a laminated nonwoven fabric mainly composed of polypropylene, a breathable resin film, a spunbond, or a sheet in which a breathable resin film is bonded to a nonwoven fabric such as spunlace. it can.
  • the non-skin surface sheet 20 is disposed on the non-skin facing surface side T ⁇ b> 2 of the absorber 30 and is disposed across the wing 3 and the hip flap 4.
  • the non-skin surface sheet 20 constitutes the non-skin surface of the absorbent article 1.
  • positioned at the non-skin opposing surface side of an absorber may be integrated like this Embodiment. , May be constituted by separate sheets.
  • the absorber 30 is disposed at least in the crotch region S1 and the rear side region S3. Further, the absorbent body 30 may extend from the crotch region S1 to the front side region S2.
  • the absorber 30 includes an absorbent core 31 including an absorbent material that absorbs liquid, and a core wrap 32 that wraps the absorbent core 31.
  • the core wrap 32 only needs to cover the absorbent core 31 at least on the skin facing surface side than the absorbent core 31.
  • the core wrap 32 includes a first core wrap 321 disposed on the skin facing surface side with respect to the absorbent core 31 and a second core wrap 322 disposed on the non-skin facing surface side with respect to the absorbent core 31. You can do it.
  • the 1st core wrap 321 and the 2nd core wrap 322 may be comprised from the same sheet
  • the absorbent material constituting the absorbent core 31 can be formed from, for example, hydrophilic fibers, pulp, and superabsorbent polymer (SAP).
  • the core wrap 32 can be comprised, for example from a nonwoven fabric or a tissue sheet.
  • the core wrap 32 may have hydrophobicity. Since the core wrap 32 has hydrophobicity, it is possible to improve leakage resistance.
  • the absorbent article 1 has the wing 3 and the hip flap 4.
  • the wing 3 and the hip flap 4 extend outward in the width direction W from the outer edge of the absorbent core 31 in the crotch region S1.
  • the wing 3 and the hip flap 4 may be configured by laminating a side sheet 12, a flap sheet 15 described later, and a non-skin sheet 20.
  • the wing 3 is configured to be folded back to the non-skin surface sheet 20 side.
  • the wing 3 is folded back to the non-skin facing surface side of the crotch portion of the underwear during use.
  • the hip flap 4 is located on the rear side of the wing 3 and is provided in the rear side region S3.
  • the hip flap 4 extends outward in the width direction from the outer edge of the absorbent core 31 in the crotch region S1.
  • the region where the hip flap 4 is disposed is located on the outer side in the width direction than the outer edge of the absorbent core 31 in the crotch region S1.
  • the hip flap 4 is not folded back during use, and is disposed between the underwear and the wearer's buttocks.
  • the hip flap 4 is not provided with an absorbent material.
  • the hip flap 4 may be provided with an absorbent material.
  • the outer edge of the hip flap 4 has an arc shape that swells outward in the width direction.
  • the side edge of the hip flap 4 may be formed in the waveform shape which has many convex parts 4F. It is preferable that the multiple protrusions 4F extend from the outer edge 4E of one hip flap 4 to the outer edge of the other hip flap 4 via the rear edge of the rear side region S3. Instead, a large number of convex portions 4F may be formed only on the outer edges of the pair of hip flaps 4.
  • the width of each convex portion 4F is preferably 20 mm or less, more preferably 10 mm or less. Moreover, it is preferable that the width
  • a plurality of convex 4F portions and concave portions between the convex portions 4F are alternately formed on the side edge of the hip flap 4.
  • a force is locally applied to the outer edge 4E of the hip flap 4 from the outside, a small number of convex portions 4F provided near the force application point are folded back.
  • a gap exists between the convex portions 4F, a force applied to a certain convex portion 4F is difficult to be transmitted to the adjacent convex portion 4F.
  • the “thickness” in this specification is measured by the following measurement method.
  • a dial gauge PEACOCK manufactured by Ozaki Mfg. Co., Ltd. is used, a measuring element having a diameter of 10 mm is used, a specimen having a size of 30 mm ⁇ 30 mm is prepared, and the thickness of the specimen is measured.
  • a measuring device adjusts so that the measurement pressure with respect to a test piece may be 3 g / cm ⁇ 2 >.
  • the above-described measurement was performed in each state, and the average value was defined as the length.
  • the packaging body In the absorbent article packaged by the packaging body, the packaging body is opened, the folded absorbent article is developed, and the thickness and area of the portion where the basis weight and density are measured are measured. Subsequently, the part which measures a fabric weight and a density is cut out from an absorbent article, and the weight of the cut-out part is measured. Next, parts other than the absorbent core such as the surface sheet and the core wrap are removed from the cut out part, and the weight of the absorbent core is measured. The basis weight is calculated based on the weight of the absorbent core and the area of the portion where the basis weight and density are measured. The density is calculated based on the basis weight and thickness.
  • the “length” in this specification is measured by the following measurement method.
  • the length of this state of the measurement target part is measured along the measurement target part.
  • the above-described measurement was performed in each state, and the average value was defined as the length.
  • the absorber 30 has the middle-high part 33 at least in the crotch region S1.
  • the middle-high portion 33 may extend from the crotch region S1 to the front side region S2.
  • the middle-high portion 33 is disposed across the center line CL in the crotch region S1.
  • the center line CL is a line that extends along the front-rear direction L through the center in the width direction of the absorbent article.
  • the middle-high portion 33 means a region where the thickness of the absorbent core 31 is thicker than the thickness of the absorbent core 31 in the region around the middle-high portion 33.
  • the basis weight of the absorbent material of the middle-high portion 33 may be higher than the basis weight of the absorbent core 31 in a region other than the middle-high portion 33 in the crotch region S1.
  • the middle-high portion 33 may be adjacent to a first low weight portion 41 described later.
  • the absorption core 31 on the rear side of the first low weight part 41 is thinner than the thickness of the middle high part 33. More preferably, the absorption core 31 of the entire rear side region S3 is thinner than the thickness of the middle-high portion 33.
  • the middle-high part 33 has the thickest highest part and the inclined part connected to the highest part.
  • the inclined portion may be disposed between the highest portion and a front pressing portion described later, and between the highest portion and the first low weight portion 41.
  • the absorbent core 31 may have a first low weight portion 41, a second low weight portion 42, and a third low weight portion 43.
  • the “low weight portion” means a region composed of the absorbent core 31 having a lower weight than the surrounding absorbent core 31 or a region not having the absorbent core 31.
  • the “low weight portion” is a concept including a region where the weight of the absorbent core 31 is zero.
  • the “low weighted portion” may be a slit that penetrates the absorption core 31 in the thickness direction T.
  • the slit has a design basis weight of zero, but may be a region where an absorbing material mixed from the periphery is disposed.
  • the length in the width direction W of the slit is preferably 1 mm to 5 mm. For example, if the length in the width direction of the slit is less than 1 mm, the absorbent material may flow between the slits, and the deformation base point of the absorbent core 31 may not be configured. In addition, if the length of the slit in the width direction exceeds 5 mm, the wearer may feel anxiety about leakage of body fluid.
  • the basis weight of the absorbent core 31 in the low basis weight portions 41 to 43 is preferably 150 g / m 2 or less, more preferably 100 g / m 2 or less. Further, the basis weight of the absorbent core 31 in the low basis weight portions 41 to 43 is further preferably substantially 0 g / m 2 . Further, the basis weight of the absorbent core 31 in the low basis weight portions 41 to 43 is preferably 60% or less, and preferably 50% or less, of the basis weight of the absorption core (except for the middle and high portions) around the low basis weight portions 41 to 43. It is more preferable.
  • the core wrap 32 may wrap the entire absorbent core 31 across the low weight portion. In this case, even if the absorbent core 31 is divided into a plurality of regions, the absorbent body 30 is integrally formed by the core wrap 32.
  • the first low weight portion 41, the second low weight portion 42, and the third low weight portion 43 serve as a boundary where the rigidity of the absorber 30 changes. Therefore, the 1st low weight part 41, the 2nd low weight part 42, and the 3rd low weight part 43 are equivalent to the area
  • the first low weight portion 41 extends in the width direction W between the crotch region S1 and the rear side region S3.
  • the first low weight portion 41 may extend linearly along the width direction W or may extend along a curve along the width direction W.
  • the first low basis weight portion 41 may be provided on the rear side of the wing 3 center in the front-rear direction L and on the front side of the rear edge of the absorber 30.
  • the first low weight part 41 may be provided so as to straddle the rear edge of the wing 3 in the front-rear direction L.
  • the first low weight portion 41 has a curved shape in which the center in the width direction W of the first low weight portion 41 protrudes rearward. More specifically, the center of the first low weight portion 41 in the width direction W is located behind the outer edge of the first low weight portion 41.
  • the length of the first low weight portion 41 in the front-rear direction L may be constant or may not be constant.
  • the crotch region S1 located on the front side of the first low weight portion 41 is sandwiched between both legs, and is easily subjected to a twisting force due to the movement of the legs.
  • the absorbent article 1 since the first low-weighted portion 41 has a curved shape, the absorbent article 1 can easily follow the torsion of the body and easily escape deformation due to the movement of the body.
  • the length of the first low weight portion 41 in the width direction W is 25 mm or more. Thereby, it can suppress that the motion of the absorber 30 in crotch region S1 is transmitted to back side region S3. More preferably, the first low weight portion 41 extends from one end of the absorber 30 to the other end in the width direction W.
  • the front edge of the first low weight portion 41 may define the rear edge of the crotch region S1, and the rear edge of the first low weight portion 41 defines the front edge of the rear region S3. May be.
  • the absorbent material constituting the absorbent core 31 moves between the crotch region S1 and the rear side region S3. It becomes difficult. Therefore, it can suppress more that the absorption material which comprises the absorption core 31 concentrates locally by the operation
  • the length of the first low weight portion 41 in the front-rear direction L is preferably 10 mm or more and 50 mm or less, more preferably 10 mm or more and 30 mm or less, at the position of the center line CL of the absorbent article 1.
  • the absorbent article 1 includes the first low-weighted portion 41, so that independent deformation can be realized in the crotch region S1 and the rear side region S3. More specifically, the first low weight portion has a length of 10 mm or more, and the first low weight portion extends from one end to the other end, whereby the absorbent article is the first low weight portion.
  • deformation is possible in directions other than the thickness direction, and deformation of the crotch region S1 and the rear region S3 can be performed independently without interfering with each other.
  • the crotch region S1 and the rear region S3 are independently deformed.
  • the crotch region S1 and the rear side region S3 can continue to fit to the shape of the body.
  • the absorbent article of one embodiment makes it possible to follow the crotch region S1 along the body and follow the rear side region S3 according to the movement of the body.
  • the second low weight portion 42 is located in the center in the width direction of the absorbent core 31 in the rear side region S3.
  • the second low weight portion 42 extends in the front-rear direction L along the center line CL of the absorbent article in the rear side region S3.
  • the second low weight portion 42 may extend linearly in the front-rear direction L.
  • the second low weight portion 42 is preferably connected to the first low weight portion 41.
  • the absorbent material constituting the absorbent core 31 by the first low weight portion 41 and the second low weight portion 42 is the crotch region S1 (or wing region), the right side portion of the rear side region S3, and the left side of the rear side region S3. It becomes difficult to move between parts. Thereby, it can suppress that the absorption material which comprises the absorption core 31 concentrates locally by the operation
  • the absorbent article is easily deformed independently in the crotch region S1 and the rear side region S3 by the first low weight portion 41. That is, the absorbent article 1 can fit in accordance with the shape of the body in both the crotch region S1 and the rear side region S3 by deforming independently in the crotch region S1 and the rear side region S3.
  • the rear edge of the second low weight portion 42 may be located on the rear side of the center of the rear side region S3 in the front-rear direction. Further, the rear end edge of the second low weight portion 42 may be located on the rear side of the position P1 of the maximum width of the hip flap 4.
  • the length of the second low weight portion 42 in the front-rear direction L is preferably 120 mm or more, and more preferably 150 mm or more. Preferably, the length of the second low weight portion 42 in the width direction W is 1 mm or more and 5 mm or less.
  • a groove (crack) between the hips exists in a region from the back to the caudal bone from the back of the perineum.
  • the second low weight portion 42 is disposed in the region of the wearer's rupture.
  • the third low weight part 43 extends outward in the width direction W from the second low weight part 42 in the rear side region S3.
  • the third low weight part 43 may be connected to the second low weight part 42.
  • the front edge line of the third low weight portion 43 may extend substantially parallel to the width direction W inside the width direction W.
  • the front edge line of the third low weight portion 43 may protrude forward on the outer side in the width direction W.
  • the rear edge line of the third low weight portion 43 may be inclined forward as it goes from the inner side to the outer side in the width direction W.
  • the 3rd low weight part 43 comprises a width
  • the third low weight portion 43 is a base point for deformation of the absorbent article 1.
  • a deformation base point extending in the width direction is formed. Since the absorbent core 31 in the rear side region S3 can be deformed with the third low weight portion 43 as a base point, the absorbent article 1 can be more easily fitted along the roundness along the front-rear direction L of the body.
  • the rear edge line of the third low weight portion 43 has a shape that inclines forward as it goes from the inner side to the outer side in the width direction W, it is easy to be arranged along the roundness of the wearer's buttocks.
  • the outer edge of the third low weight portion 43 in the width direction W is located inside the outer edge of the absorbent core 31 in the rear region S3.
  • a plurality of third low weight portions 43 may be provided at intervals in the front-rear direction L.
  • the 3rd low weight part 43 comprises the music part in this Embodiment.
  • the 3rd low weight part 43 is comprised so that the absorbent article 1 can bend in the thickness direction.
  • the “curved portion” only needs to extend along the width direction, may be parallel to the width direction, or may be inclined with respect to the width direction.
  • the “curved portion” may be a configuration that becomes a deformation base point of the absorbent core 31, may be configured by a low weighted portion, or may be a compressed portion in which the absorbent core 31 is compressed in the thickness direction.
  • the absorbent core 31 has a high basis weight 45 located on the outer side in the width direction than the second low basis weight 42 in the rear side region S3.
  • the basis weight of the absorbent material of the high basis weight 45 is lower than the basis weight of the absorbent material of the surrounding absorbent core 31.
  • the high basis weight 45 is a portion of the absorbent core 31 in the rear side region S3 excluding the second low basis weight 42 and the third low basis weight.
  • the second low weight portion 42, the third low weight portion 43, and the high weight portion 45 are covered with the topsheet 11.
  • Pressing part Absorbent article 1 has a pressing part formed by compressing at least absorption core 31 in thickness direction T.
  • This pressing part may have a front pressing part 81, a longitudinal pressing part 82, and a pair of rear pressing parts 84.
  • the front pressing part 81 is provided at least in the crotch region S1.
  • the front pressing part 81 may extend from the crotch region S1 to the front side region S2.
  • the front pressing part 81 may be formed by compressing the topsheet 11, the absorbent core 31, and the core wrap 32 in the thickness direction T.
  • the front side compression part 81 has a section along the front-rear direction L provided on both sides in the width direction W of the middle-high part 33.
  • the front side compressed portion 81 may define a side edge in the width direction W of the middle-high portion 33.
  • the longitudinal pressing portion 82 is provided on both sides of the center line CL, more specifically, the second low weight portion 42 in the rear side region S3.
  • the longitudinal pressing part 82 may be formed by the absorber 30 and the surface sheet 11 being compressed in the thickness direction.
  • the longitudinal pressing portions 82 are disposed on both sides in the width direction of the second low weight portion 42, and serve as a base point for deformation when the second low weight portion 42 is raised on the wearer side.
  • the longitudinal pressing part 82 extends along the front-rear direction L.
  • the longitudinal pressing portion 82 may extend linearly in the front-rear direction L, or may extend in a curved manner inclined with respect to the front-rear direction L.
  • the longitudinal pressing part 82 may be formed in front of the position P1 of the maximum width of the hip flap 4.
  • the front pressing part 81 and the longitudinal pressing part 82 may be divided in the front-rear direction. By dividing the front pressing part 81 and the longitudinal pressing part 82, it is possible to suppress the propagation of force in the crotch region S1 and the rear side region S3. Therefore, by independently deforming the crotch region S1 and the rear side region S3, it is possible to fit the body shape in both the crotch region S1 and the rear side region S3. In addition, as a modification, the front side pressing part 81 and the longitudinal pressing part 82 may be continuously connected.
  • the pair of rear side compression parts 84 is provided on both sides of the center line CL in the rear side region S3.
  • the rear side pressing part 84 may be formed by the absorber 30 and the surface sheet 11 being compressed in the thickness direction.
  • the pair of rear pressing parts 84 are provided apart from each other with a center line CL passing through the center in the width direction W of the absorbent article 1.
  • the pair of rear side compressed parts 84 may be located on the rear side of the position P1 of the maximum width of the hip flap 4.
  • the pair of rear pressing parts 84 are located on the rear side of the position P1 of the maximum width of the hip flap 4 in the width direction, and the pair of rear pressing parts 84 are wide so that the distance in the width direction increases toward the rear side. It has a section.
  • the maximum width of the hip flap 4 in the width direction W is located behind the center of the rear side region S3 in the front-rear direction.
  • the wide area sandwiched by the wide sections corresponds to the vicinity of the wearer's sacrum. There are no compressed parts in this area, and there are a pair of relatively high rear compression parts 84 on both sides of this area.
  • the wide area is maintained on a relatively flat surface. Since the relatively flat surface hits the skin near the sacrum, the influence on the wearer's skin can be reduced. Further, since the wide region is maintained on a relatively flat surface, the convex deformation by the second low-weight 42 portion located on the front side of the wide region can be made flat.
  • the pair of rear pressing parts 84 are arranged so as to partition between a region facing the vicinity of the sacrum and a part facing the thick part of the buttocks. Since the buttocks move relatively vigorously, the portion of the absorbent article 1 that faces the buttocks is also easy to move according to the movement of the wearer. The movement of the absorbent article 1 is not easily transmitted to the region facing the sacrum, that is, the wide region, by the pair of relatively high-rear compression parts 84. As a result, the wide region can be maintained on a relatively flat surface, and the influence on the wearer's skin can be reduced. Moreover, it is preferable that there is no highly rigid pressing part in a wide area
  • the pair of longitudinal pressing portions 82 are disposed away from the pair of rear pressing portions 84. Thereby, it is possible to suppress the movement of the absorption core 31 behind the rear side area S3 from following the movement of the absorption core 31 ahead of the rear side area S3.
  • the absorbent core 31 in front of the rear side region S3 may move relatively greatly in accordance with the movement of the wearer's buttocks. Even in this case, since the pair of longitudinal pressing portions 82 and the pair of rear pressing portions 84 are separated from each other, the movement of the absorbent core 31 behind the rear side region S3 is alleviated. Therefore, since the movement of the absorbent core 31 in the wide region is relieved, it is possible to reduce the stimulus given to the wearer near the sacrum.
  • the absorbent article 1 includes a first pressing unit 85 and a second pressing unit formed by pressing at least two of the sheets constituting the skin sheet 10 and the non-skin sheet 20 in the thickness direction T. 87 and the 3rd pressing part 86 may be included (refer FIG. 1). The first pressing part 85, the second pressing part 87 and the third pressing part 86 may be formed along the outer edge of the hip flap 4.
  • the absorbent article 1 is provided with an adhesive part 60 having an adhesive for stopping the absorbent article 1 to the underwear S.
  • the adhesive part 60 includes a first main body adhesive part 61, a second main body adhesive part 62, a wing adhesive part 63, and a hip flap adhesive part 64. These adhesive portions 61 to 64 are provided on the non-skin facing surface side of the non-skin surface sheet 20.
  • the adhesive portions 61 to 64 may be covered with a release sheet in a state before use. The release sheet prevents the adhesive of the adhesive portions 61 to 64 from being deteriorated before use. The release sheet is removed by the wearer during use.
  • the first main body adhesive portion 61 is disposed in front of the second main body adhesive portion 62.
  • the first main body adhesive portion 61 and the second main body adhesive portion 62 extend in the front-rear direction L.
  • the first main body adhesive portion 61 is disposed away from the second main body adhesive portion 62 in the front-rear direction L.
  • the first main body adhesive portion 61 may be disposed on the front side of the first low weight portion 41 and straddling the crotch region S1 and the front side region S2.
  • the second main body adhesive portion 62 is disposed behind the first low weight portion 41 and in the rear region S3. It is preferable that the 1st main body adhesion part 61 and the 2nd main body adhesion part 62 are not provided on the centerline CL.
  • the wing adhesive portion 63 is provided on the wing 3.
  • the hip flap adhesive portion 64 is provided on the hip flap 4.
  • the first low weight portion 41 is preferably arranged in a region that does not overlap the adhesive portions 61 to 64 in the thickness direction T. More specifically, the first low weight portion 41 is provided in a region between the first main body adhesive portion 61 and the second main body adhesive portion 62.
  • the adhesive portion 60 may be disposed in a region overlapping the top sheet 11.
  • the 2nd main body adhesion part 62 of this Embodiment is arrange
  • the adhesion part 60 does not need to be arrange
  • the second low weight portion 42 is not fixed to the undergarment, and easily deforms following the movement of the body when the absorbent article 1 is deformed. When the second low weight portion 42 is flexibly deformed, the skin facing surface of the absorbent article 1 can be flexibly deformed, and the softness of the skin facing surface of the absorbent article can be easily maintained.
  • the adhesive portion 60 is not disposed in the region where the second low weight portion 42 is disposed, and the high weight portion 45 having higher rigidity than the second low weight portion 42 is disposed.
  • the adhesive portion 60 is disposed in the region.
  • the adhesion part 60 is not arrange
  • a region having relatively high rigidity can receive a force from underwear through the adhesive portion 60.
  • the adhesive portion 60 is not disposed, and the region can be flexibly deformed without receiving a force from the underwear.
  • the second low weight portion 42 is preferably arranged in a region that does not overlap with the adhesive portions 61 to 64 in the thickness direction T. More specifically, the second low weight portion 42 is provided between the plurality of second main body adhesive portions 62.
  • the flap sheet 15 is disposed across the crotch region S1, the front side region S2, and the rear side region S3.
  • the flap sheet 15 is disposed on the wing 3 and the hip flap 4.
  • seat 15 should just be arrange
  • the flap sheet 15 should just be arrange
  • the flap sheet 15 is disposed between the side sheet 12 and the non-skin sheet 20 in the thickness direction T.
  • the outer edge 15OE of the flap sheet 15 is located at the outer edge of the hip flap 4.
  • the outer peripheral shape on the outer side in the width direction of the flap sheet 15 is an arc shape that swells outward in the width direction.
  • the inner edge 15IE of the flap sheet 15 is disposed on the outer side in the width direction than the outer edge 11OE of the topsheet 11.
  • the outer peripheral shape on the inner side in the width direction of the flap sheet 15 is a linear shape extending in the front-rear direction L.
  • the flap sheet 15 is made of an arbitrary sheet-like material having a structure that does not allow liquid to permeate, such as a nonwoven fabric, a woven fabric, a perforated plastic sheet, or a mesh sheet.
  • the flap sheet 15 of the present embodiment uses a hydrophilic air-through nonwoven fabric. By using such a bulky nonwoven fabric as the flap sheet, the thickness difference between the region where the flap sheet 15 is disposed and the absorber 30 can be reduced. When the area where the flap sheet 15 is disposed contacts the buttocks, the presence of the hip flap 4 can be obtained, and a sense of security that the buttocks are wrapped when worn can be given.
  • the flap sheet 15 and the top sheet 11 are spaced apart in the width direction W.
  • the side sheet 12, the flap sheet 15, and the non-skin sheet 20 are laminated, and has a three-layer sheet material.
  • the side sheet 12, the top sheet 11, and the non-skin sheet 20 are laminated. And has a three-layer sheet material.
  • region located in the width direction outer side rather than the outer side edge 11OE of the surface sheet 11 and the width direction inner side has the side sheet
  • the number of layers in the area located in the width direction outside of the outer edge 11OE of the topsheet 11 and in the width direction inside is smaller than the number of layers in the area in which the flap sheet 15 is disposed, and the hip flap 4 is less than the number of layers in the region where the topsheet 11 is disposed.
  • the thickness of the area between the outer edge 11OE of the topsheet 11 and the inner edge 15IE of the flap sheet 15 is thinner than the thickness of the area on the inner side in the width direction from the outer edge 11OE of the topsheet 11, and the inner side of the flap sheet 15 It is thinner than the thickness of the region outside in the width direction from the edge 15IE.
  • the thickness of the region on the inner side in the width direction from the outer edge 11OE of the topsheet 11 is 3.5 mm to 4.5 mm.
  • the thickness of the region on the outer side in the width direction from the inner edge 15IE of the flap sheet 15 is 1.0 mm to 2.0 mm.
  • the thickness of the region between the outer edge 11OE of the topsheet 11 and the inner edge 15IE of the flap sheet 15 is less than 1.0 mm.
  • region located in the width direction outer side from the outer side edge 11OE of the surface sheet 11, and is located in the width direction inner side from the inner side edge 15IE of the flap sheet 15 is the outer side edge 11OE of the surface sheet 11 and the inner side of the flap sheet 15. This is the area between the edge 15IE.
  • the area between the outer edge 11OE of the top sheet 11 and the inner edge 15IE of the flap sheet 15 has fewer layers and lower rigidity than the adjacent area in the width direction W. Therefore, the region between the outer edge 11OE of the topsheet 11 and the inner edge 15IE of the flap sheet 15 is more easily deformed than the adjacent region when the absorbent article 1 is deformed, and the buffer region B that absorbs the deformation. Function as. In the following description, a region between the outer edge 11OE of the top sheet 11 and the inner edge 15IE of the flap sheet 15 is referred to as a buffer region B.
  • the front end edge of the buffer region B coincides with the front end edge of the flap sheet 15.
  • the rear end edge of the buffer region B coincides with the rear end edge of the flap sheet 15.
  • the adhesive part 60 may not be arranged.
  • the adhesive portion 60 may be disposed in a region overlapping the flap sheet 15.
  • the hip flap adhesive portion 64 of the present embodiment is disposed in an area overlapping the flap sheet 15.
  • the flap sheet 15 is disposed on the wing 3.
  • the wing 3 three layers, the side sheet 12, the flap sheet 15, and the non-skin sheet 20, are laminated. Since the rigidity of the wing 3 is increased by the flap sheet 15, the side edge of the wing 3 can be prevented from shaking. Therefore, when the wing 3 is folded back to the non-skin surface side of the underwear at the time of wearing or when the wing 3 is sandwiched between the legs at the time of wearing, the wing 3 can be prevented from being twisted or broken.
  • FIG. 4 is a schematic cross-sectional view along the line AA in FIG. 1 in a state where the wearer lies on his back.
  • 4 (A) to 4 (C) show an aspect in which the posture changes by turning over when the wearer is sleeping.
  • FIG. 4A shows a state where the wearer is lying on his / her back and the body weight is evenly applied to the left and right buttocks.
  • FIG. 4B shows a state in which the body weight is applied to the right buttock rather than the left buttock while turning over.
  • FIG. 4A shows a state where the wearer is lying on his / her back and the body weight is evenly applied to the left and right buttocks.
  • FIG. 4B shows a state in which the body weight is applied to the right buttock rather than the left buttock while turning over.
  • FIG. 4C shows a state in which the wearer is lying sideways after turning over and the weight of the body is further applied to the right buttock than the state shown in FIG.
  • the line which shows the shape of a wearer's body is shown with the dashed-two dotted line.
  • floor surfaces G such as bedding which supports a wearer's body, are shown with the dashed-dotted line.
  • the inseam area S1 of the absorbent article 1 is arranged to face the wearer's inseam, and the rear area S3 of the absorbent article 1 is arranged to face the wearer's buttocks.
  • the absorbent core 31 in the rear side region S3 is pressed by the wearer's buttocks in a state where the wearer is lying on his / her back (the state shown in FIG. 4A). More specifically, the center in the width direction of the absorbent core 31 in the rear side region S3 is located between the bulges of the left and right buttocks, and relatively little body pressure is applied.
  • the outer edge of the absorbent core 31 in the rear side region S3 hits the bulges of the left and right buttocks, and a relatively high body pressure is applied.
  • the absorbent core 31 is deformed so as to protrude toward the wearer with the second low weight portion 42 as a base point when body pressure is applied to the high weight portion 45 located at the outer edge of the absorbent core 31 in the rear region S3. And it arrange
  • the posture may change due to turning over or the like.
  • the wearer's body may move such that the right side of the wearer's body is lower than the left side.
  • the wearer moves to twist the body. Specifically, the wearer's right leg and right heel part move to the right side while rotating so that the right side surface is down.
  • the left leg and the left buttock of the wearer first maintain the state in which the left leg touches the floor G, and the left buttock is floated from the floor G. Thereafter, the left leg follows the left buttock and moves so as to float from the floor.
  • the right buttock is deformed.
  • the high weighted portion 45 on the right side is pushed by the right collar and moves to the right side (see arrow X in FIG. 4B).
  • the rigidity of the buffer area B is lower than the rigidity of the area on the inner side in the width direction than the outer edge 11OE of the top sheet 11, and is lower than the rigidity of the area on the outer side in the width direction than the inner edge 15IE of the flap sheet 15. Therefore, when the high basis weight 45 moves to the right side, the buffer region B is deformed.
  • the outer edge of the buffer region B (the inner edge 15IE of the flap sheet 15) does not substantially move outward in the width direction, and the inner edge of the buffer region B (the outer edge 11OE of the topsheet 11) is outside in the width direction. Move to.
  • the buffer region B becomes narrow, and the buffer region B absorbs the deformation of the absorbent core 31 (movement of the high basis weight portion).
  • the state shown in FIG. 4C is obtained.
  • the wearer's body is in a sideways state.
  • the outer edge 15OE of the flap sheet 15 is pushed by the right brim and cannot move in the width direction. Therefore, when the high basis weight 45 moves to the right side, the buffer region B is deformed.
  • the buffer area B is further narrowed, and the buffer area B absorbs the movement of the high weight portion 45.
  • the hip flap 4 of the absorbent article 1 is provided with a buffer region B.
  • the absorbent article 1 can absorb the deformation of the absorbent core 31 by the buffer region B.
  • the buffer region B has lower rigidity than the region where the top sheet 11 is disposed, and has lower rigidity than the region where the flap sheet 15 is disposed. Therefore, when the high weight part 45 moves outward in the width direction, the movement in the width direction W of the high weight part 45 can be absorbed by the buffer region B.
  • the high weighted portion 45 may hit another member.
  • the high basis weight portion 45 is compressed by hitting other members, and part of the high basis weight part 45 becomes hard or part of it is twisted.
  • the absorption core 31 is suppressed from being repeatedly compressed, and a part of the absorption core 31 is hardened or a part of the absorption core 31 is twisted. It can be suppressed. The occurrence of leakage due to deformation of the absorbent core 31 can be suppressed.
  • the absorption core 31 becomes hard, the skin opposing surface of the absorbent article 1 will become hard, and a wearing feeling may deteriorate.
  • the absorbent article 1 of one embodiment even after repeated tumbling over and over, a part of the absorbent core 31 is suppressed from becoming hard, and the skin facing surface of the absorbent article 1 is soft. Can be maintained. Therefore, even if the wearer wears the absorbent article 1 all night, the wearer can continue to feel the softness of the absorbent article 1 and forgets that the absorbent article 1 is worn. You can get such fluffy comfort.
  • the wearer twists his body when changing his posture by turning over. Therefore, the absorbent article 1 is subjected to a twisting force. For example, when the absorbent core 31 is twisted, the absorbent core 31 may move in a direction in which a force is applied, the absorbent core 31 may become hard, or the absorbent core 31 may be bent.
  • the absorbent article 1 of one embodiment since the second low weight portion 42 is provided in the center of the absorbent core 31 in the width direction, the movement of the absorbent core 31 on both sides in the width direction sandwiching the second low weight portion 42 is performed. It is easy to be divided.
  • the absorbent core 31 on the right side of the second low weight portion 42 and the absorbent core 31 on the left side of the second low weight portion 42 are formed. It can move separately and be difficult to work with each other. Further, the absorbent core 31 has the high weighted portion 45 of the absorbent core 31 that is easily moved by the buffer regions B arranged on both sides in the width direction of the absorbent core 31, and is sandwiched between the second low weight portion 42 and the buffer region B. The left and right high weighted portions 45 are easy to move individually.
  • the adhesive portion 60 may not be disposed in the region (buffer region B) between the outer edge 11OE of the topsheet 11 and the inner edge 15IE of the flap sheet 15 in the hip flap 4.
  • the force applied from the underwear to the absorbent article 1 is transmitted through the adhesive part 60 that fixes the underwear and the absorbent article 1.
  • the buffer region B is not fixed to the undergarment via the adhesive portion 60, and is easily deformed following the movement of the body when the absorbent article 1 is deformed. Therefore, the movement of the absorbent core or the like can be easily absorbed by the buffer region B, and it is possible to further suppress the part of the absorbent core 31 from becoming hard or the part of the absorbent core 31 from being twisted.
  • the adhesive part 60 may be disposed in an area overlapping the flap sheet 15. Since the adhesive portion 60 is disposed so as to overlap the flap sheet 15, the region where the flap sheet 15 is disposed is fixed to the underwear. For example, when the wearer turns over and the region where the flap sheet 15 is disposed also moves to the outside in the width direction together with the absorbent core 31, the position of the entire absorbent article may be shifted and side leakage may occur. However, the area where the flap sheet 15 is arranged is fixed to the undergarment and continues along the wearer's body. Therefore, the region on the inner side in the width direction than the buffer region B and the buffer region B can be deformed according to the movement of the body while the region outside in the width direction from the buffer region B is along the body. Therefore, the deformation
  • the second low weight portion 42 may be a slit that penetrates the absorbent core 31 in the thickness direction T of the absorbent article 1. Since the second low weight portion 42 is a slit, when the body pressure is applied to the high weight portion 45, the second low weight portion 42 is compared with the configuration in which the absorbent material is disposed in the second low weight portion 42. 42 is easily deformed by the base point. Therefore, it becomes easy to arrange the absorption core 31 along the recess between the left brim and the right brim. The absorption core 31 becomes easier to follow the movement of the body, and the leakage of body fluid can be suppressed.
  • the absorption core 31 can be deform
  • the motion of the absorption core 31 located in the width direction both sides across the 2nd low weight part 42 can be parted. Therefore, the right absorbent core 31 and the left absorbent core 31 can be moved separately without being interlocked with each other. Even when a twisting force is applied to the absorbent article 1, the force applied to the left and right absorbent cores 31 is divided by the second low weighted portion 42, and the left and right absorbent cores are moved separately to absorb by twisting.
  • the warping of the core 31 can be prevented. Furthermore, since the absorption core 31 is difficult to sway, it is easier to maintain the shape along the depression of the body (buttock). A sense of incongruity is less likely to occur, and it is possible to maintain softness against the skin and good comfort.
  • the outer edge 15OE of the flap sheet 15 may be located at the outer edge of the hip flap 4.
  • the rigidity of the outer edge of the hip flap 4 is lowered, and the outer edge of the hip flap 4 is moved according to the deformation of the buttock. Lateral leakage may occur.
  • the rigidity of the outer edge of the hip flap 4 can be increased by the flap sheet 15, the region from the outer edge of the hip flap 4 to the buffer region B can easily keep following the body. Therefore, unintended deformation of the absorbent core 31 can be suppressed by deformation of the buffer region B while suppressing side leakage.
  • the outer edge 15OE of the flap sheet 15 when the outer edge 15OE of the flap sheet 15 is positioned on the inner side in the width direction than the outer edge of the hip flap 4, an area where the flap sheet 15 is disposed (an area on the inner side in the width direction than the outer edge 15OE of the flap sheet 15).
  • a rigidity difference is generated between the region where the flap sheet 15 is not disposed (the region between the outer edge 15OE of the flap sheet 15 and the outer edge of the hip flap 4). If a difference in rigidity occurs in the hip flap 4, the side edges of the hip flap 4 may be turned over from the point where the difference in rigidity occurs. Since the outer edge 15OE of the flap sheet 15 is positioned at the outer edge of the hip flap 4, the rigidity difference of the hip flap 4 can be reduced, and the turning due to the rigidity difference of the hip flap 4 can be prevented.
  • the third low weight portion 43 that extends in the width direction W may be provided outside the second low weight portion 42 in the width direction, and the third low weight portion 43 may constitute a curved portion.
  • a deformation base point extending in the width direction W is formed by the third low weight portion 43 which is a curved portion. Since the plurality of third low weight portions 43 are formed at intervals in the front-rear direction L, a plurality of deformation base points are formed at intervals in the front-rear direction in the rear side region S3. The wearer's buttocks are in contact with the rear side region S3, and a force to expand and contract in the front-rear direction L is applied with the expansion and contraction of the skin of the buttocks when the wearer in the sleeping state gets up.
  • the absorbent core 31 in the rear side region S3 is pulled in the front-rear direction L, moves along the front-rear direction L, or is compressed in the front-rear direction L.
  • the third low weight portion 43 functions as a buffering region that absorbs the movement of the absorbent core 31.
  • the third low weight portion 43 can suppress the swaying caused by the expansion and contraction of the absorption core 31, keeps the absorption core 31 fitted to the body, and easily maintains a state in which a sense of discomfort is suppressed.
  • the absorption core 31 of the rear side region S3 can be deformed at a plurality of base points at intervals in the front-rear direction.
  • the absorption core 31 of S3 becomes easy to follow the roundness of the body (buttock). Therefore, the absorption core 31 fits the body more, and the leakage of body fluid can be suppressed.
  • the thickness of the region (buffer region B) between the outer edge 11OE of the topsheet 11 and the inner edge 15IE of the flap sheet 15 may be thinner than the thickness of the inner region in the width direction from the outer edge 11OE of the topsheet 11. And the thickness of the area
  • seat 15 may be thinner.
  • the buffer region B is relatively thin and easily deformed. Therefore, when the high weight part 45 moves to the outside in the width direction by turning over or the like, the buffer area B can easily absorb the movement of the high weight part 45, and the unintended deformation of the absorber 30 can be effectively suppressed.
  • the second low weight portion 42 may be disposed across a virtual line extending in the width direction W from the position P1 having the maximum width of the hip wrap 4.
  • the second low weight portion 42 is disposed straddling from the front to the rear than the position of the maximum width of the hip flap 4.
  • the position of the maximum width of the hip flap 4 has the longest length in the width direction W in the absorbent article 1, and the force is easily released when a force is applied to the absorbent article 1. Since the second low weight portion 42 is disposed across the imaginary line extending in the width direction W from the position P1 of the maximum width of the hip wrap 4, a force in a direction twisting the absorbent article 1 is applied. In this case, the force can be released on a wide surface and the hip flap 4 can be prevented from being twisted.
  • the third low weight portion 43 as the low width weight portion may be disposed across a virtual line extending in the width direction from the maximum width position P1 of the hip wrap 4.
  • the third low weight part 43 is disposed across the front from the position of the maximum width of the hip flap 4.
  • the buffer region B absorbs the deformation.
  • the buffer region B may not absorb the deformation, and the outer edge 11OE of the topsheet 11 and the inner edge 15IE of the flap sheet 15 may collide. Since the bending rigidity of the surface sheet is lower than the bending rigidity of the flap sheet 15, the flap sheet 15 is deformed when the outer edge 11OE of the surface sheet 11 and the inner edge 15IE of the flap sheet 15 collide with each other. The deformation of the absorbent core 31 covered with the sheet 11 can be suppressed.

Landscapes

  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
PCT/JP2016/073554 2015-11-09 2016-08-10 吸収性物品 WO2017081899A1 (ja)

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CN110946713B (zh) * 2019-11-26 2021-10-29 福建恒安集团有限公司 一种弹性贴合的一次性卫生巾
US20210393452A1 (en) * 2020-06-23 2021-12-23 Katrina Marie Arceo-Yap Feminine pad with large petal design

Citations (2)

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Publication number Priority date Publication date Assignee Title
JP2010233839A (ja) * 2009-03-31 2010-10-21 Uni Charm Corp 吸収性物品及び吸収性物品の製造方法
JP2014036832A (ja) * 2012-07-19 2014-02-27 Uni Charm Corp 吸収性物品

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Publication number Priority date Publication date Assignee Title
JP4911830B2 (ja) * 2001-04-04 2012-04-04 ピジョン株式会社 吸収性製品
JP4476563B2 (ja) * 2003-05-29 2010-06-09 ユニ・チャーム株式会社 生理用ナプキン
CN101065086B (zh) 2004-11-30 2011-03-16 宝洁公司 用于增强保护的具有外凸纵向中心槽的吸收制品
JP4693530B2 (ja) 2005-07-12 2011-06-01 花王株式会社 使い捨ておむつ及びその製造方法
JP5988714B2 (ja) 2012-06-11 2016-09-07 花王株式会社 吸収性物品
CA2922316A1 (en) 2013-08-27 2015-03-05 The Procter & Gamble Company Absorbent articles with channels
JP5992381B2 (ja) * 2013-09-04 2016-09-14 大王製紙株式会社 吸収性物品
JP6080262B2 (ja) * 2013-11-20 2017-02-15 花王株式会社 吸収性物品

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010233839A (ja) * 2009-03-31 2010-10-21 Uni Charm Corp 吸収性物品及び吸収性物品の製造方法
JP2014036832A (ja) * 2012-07-19 2014-02-27 Uni Charm Corp 吸収性物品

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TWI612946B (zh) 2018-02-01
CN108348366A (zh) 2018-07-31
JP2017086382A (ja) 2017-05-25
KR101935221B1 (ko) 2019-01-03
CN108348366B (zh) 2020-10-30
KR20180063327A (ko) 2018-06-11
TW201722382A (zh) 2017-07-01
JP6080935B1 (ja) 2017-02-15

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