WO2013042501A1 - 吸収性物品 - Google Patents

吸収性物品 Download PDF

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Publication number
WO2013042501A1
WO2013042501A1 PCT/JP2012/071001 JP2012071001W WO2013042501A1 WO 2013042501 A1 WO2013042501 A1 WO 2013042501A1 JP 2012071001 W JP2012071001 W JP 2012071001W WO 2013042501 A1 WO2013042501 A1 WO 2013042501A1
Authority
WO
WIPO (PCT)
Prior art keywords
sheet
absorbent article
heat
meltable
fiber
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2012/071001
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
俊久 林
英之 木下
あゆみ 盛岡
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Unicharm Corp
Original Assignee
Unicharm Corp
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 Unicharm Corp filed Critical Unicharm Corp
Priority to KR1020147010407A priority Critical patent/KR101966273B1/ko
Priority to CN201280046098.3A priority patent/CN103826584B/zh
Publication of WO2013042501A1 publication Critical patent/WO2013042501A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers of the pads
    • A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
    • A61F13/5116—Topsheet, i.e. the permeable cover or layer facing the skin being formed of multiple layers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • 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 of the pads
    • A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
    • A61F13/512—Topsheet, i.e. the permeable cover or layer facing the skin characterised by its apertures, e.g. perforations
    • A61F13/5123—Topsheet, i.e. the permeable cover or layer facing the skin characterised by its apertures, e.g. perforations the apertures being formed on a multilayer top sheet
    • 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 of the pads
    • A61F13/515—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 of the pads characterised by the interconnection of the topsheet and the backsheet
    • 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
    • A61F13/539—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 characterised by the connection of the absorbent layers with each other or with the outer layers

Definitions

  • the present invention relates to an absorbent article, and more particularly, to an absorbent article such as a sanitary napkin, a panty liner, a urine picking pad, and a disposable diaper having a surface sheet containing natural fibers.
  • Patent Document 1 includes a top sheet formed of cotton fibers, a back sheet formed of synthetic resin, an absorbent body made of cotton-like pulp or rigid pulp, and an absorbent body and a top sheet.
  • a sanitary napkin having a heat-fusible fiber sheet disposed therebetween is disclosed.
  • JP 2009-148328 A JP 2009-148328 A
  • the back sheet and the top sheet are joined together with an adhesive on the outer periphery of the absorber.
  • the top sheet is formed of cotton fibers and the back sheet is formed of synthetic resin fibers, these properties are different, and even if they are joined to each other with an adhesive, these sheets are easily peeled from each other.
  • An object of the present invention is to provide an absorbent article in which a surface sheet containing non-heat-meltable fibers is difficult to peel off.
  • the present invention has a longitudinal direction and a lateral direction, and has a skin facing surface and a non-skin facing surface that is opposite to the skin, a surface sheet that is located on the skin facing surface and includes non-thermomeltable fibers, and the non-skin
  • the present invention relates to an improvement of an absorbent article including a back sheet positioned on an opposing surface and a body fluid absorber positioned between the front and back sheets.
  • the present invention in the absorbent article, is disposed on the skin facing surface of the surface sheet, and is disposed between the pair of side sheets spaced apart in the lateral direction, the surface sheet and the absorber,
  • a heat-fusible sheet that overlaps the side sheet via the surface sheet, and the side sheet and the heat-fusible sheet are formed of synthetic fibers containing a thermoplastic resin, and the side sheet and the heat-fusible sheet Between the two, a welded portion is formed that joins them together by thermal melting through the surface sheet.
  • a surface sheet containing non-thermomeltable fibers is disposed between a sidesheet containing thermoplastic synthetic resin fibers and a heat-meltable sheet, and the surface sheet is interposed therebetween.
  • the side sheet and the heat-fusible sheet are thermally welded at the weld portion. Therefore, the top sheet and the side sheet are reliably bonded, and they can be prevented from being separated from each other.
  • FIG. 2 is an end view taken along line II-II in FIG. 1.
  • FIG. 1 is a plan view seen from the skin-facing surface of a sanitary napkin shown as an example of the absorbent article of the present invention
  • FIG. 2 is an end view taken along the line II-II in FIG. In FIG. 1, a part thereof is broken for illustration.
  • the sanitary napkin 1 has a longitudinal direction Y and a transverse direction X orthogonal thereto, and bisects a virtual longitudinal center line PP that bisects the dimension in the transverse direction X and a dimension in the longitudinal direction Y. And a virtual horizontal center line QQ.
  • the sanitary napkin 1 absorbs body fluid located between the top sheet 20 located on the skin facing surface of the wearer, the back sheet 30 located on the non-skin facing surface on the opposite side, and the front and back sheets 20, 30. It includes a body 40, a heat-meltable sheet 50 positioned between the topsheet 20 and the absorber 40, and a pair of side sheets 60 positioned on the skin facing surface of the topsheet 20.
  • the back sheet 30 may be a liquid-impervious and moisture-permeable plastic sheet or a laminate sheet of a plastic sheet and a fiber nonwoven fabric.
  • a plastic sheet a microporous sheet obtained by subjecting an olefin-based resin such as polyethylene or polypropylene to melt-kneading an inorganic filler and stretching treatment can be used.
  • First and second fixing portions 31 and 32 for fixing the sanitary napkin 1 to the inner surface of the wearing article are formed on the non-skin facing surface of the back sheet 30.
  • the first and second fixing portions 31 and 32 are formed of, for example, a hot melt adhesive.
  • 1st fixed part 31 is extended in the vertical direction Y in the position which overlaps with the absorber 40 in the non-skin opposing surface of the back surface sheet 30, and several strips are formed spaced apart in the horizontal direction X.
  • the second fixing portion 32 is formed in the extending portion 33 projecting in the lateral direction X in the vicinity of the virtual lateral center line QQ of the back sheet 30.
  • the sanitary napkin 1 has the first fixing portion 31 opposed to the inner surface of the crotch portion of the wearing article, the extension portion 33 is bent to the non-skin facing surface, and the extension portion 33 wraps the crotch portion of the wearing article,
  • the sanitary napkin 1 can be fixed to the wearing article by the second fixing portion 32 facing the outer surface of the crotch portion and the adhesive force of the first and second fixing portions 31 and 32.
  • the absorber 40 is joined to the back sheet 30 by using a known joining means such as a hot melt adhesive (not shown).
  • the absorber 40 has a substantially rectangular shape extending in the longitudinal direction Y, and is formed by a liquid-absorbing core material and a covering sheet that covers the core material.
  • the core material for example, fluff pulp having a mass of about 100 to 300 g / m 2 can be used, and one containing superabsorbent polymer particles can also be used.
  • the covering sheet a liquid diffusible sheet such as tissue paper can be used.
  • the heat-meltable sheet 50 is joined to the absorber 40 by using a known joining means such as an intermittently applied hot melt adhesive (not shown).
  • the heat-meltable sheet 50 is formed of synthetic fibers containing a thermoplastic resin.
  • the thermoplastic resin include polyethylene, polypropylene, polyethylene terephthalate, etc.
  • the synthetic fiber may be formed of one kind of these resins, or a core-sheath type composite fiber containing two or more kinds of resins or a parallel type. It may be a composite fiber.
  • the resin located on the surface (sheath) has a lower melting point than the resin located on the center (core).
  • the topsheet 20 is joined to the heat-meltable sheet 50 using a known joining means such as a hot melt adhesive (not shown).
  • the top sheet 20 is formed of cotton fibers that are natural fibers. For example, a spunlace fiber in which individual fibers are mechanically entangled with a mass of about 10 to 80 g / m 2 , preferably about 20 to 40 g / m 2. Nonwoven fabric can be used.
  • a large number of apertures 21 penetrating in the thickness direction are formed in the topsheet 20.
  • the opening 21 is formed by, for example, partially moving the fiber by a fluid flow such as air jet (water jet) or water jet (water jet) when forming the topsheet 20.
  • the opening 21 has a dimension in the longitudinal direction Y larger than that in the transverse direction X, and the dimension in the longitudinal direction Y is about 0.3 to 5.0 mm, preferably about 0.5 to 2. 0.0 mm. It is preferable that the aperture ratio of the aperture 21 is about 30 to 70%, and the individual aperture area is about 0.09 to 25 mm 2 .
  • a pair of side sheets 60 are laminated on the top sheet 20 using a known joining means such as a hot melt adhesive.
  • the pair of side sheets 60 are disposed so as to be separated from each other in the lateral direction X and overlap so as to cover both side edges 20a of the top sheet 20.
  • the side sheet 60 has inner and outer edges 60 a and 60 b extending in the longitudinal direction Y, and the vicinity of the outer edge 60 b overlaps with the extending portion 33 of the back sheet 30 to constitute a side flap.
  • the side sheet 60 is formed of a synthetic fiber containing a thermoplastic resin.
  • the thermoplastic resin include polyethylene, polypropylene, polyethylene terephthalate, and the like, and the synthetic fiber may be formed of these kinds of resins, or a core-sheath type composite fiber or a parallel type composite fiber containing two or more kinds of resins. It may be.
  • the resin located on the surface (sheath) has a lower melting point than the resin located on the center (core).
  • An adhesive portion 71 is formed between the top sheet 20 and the side sheet 60.
  • the bonding portion 71 is formed by a known bonding means such as a hot melt adhesive and extends continuously in the longitudinal direction Y between one end edge 20b and the other end edge 20c of the topsheet 20. By extending continuously in this way, a seal can be formed by the bonding portion 71, and body fluid can be prevented from leaking outside the lateral direction X of the bonding portion 71.
  • the inner edge of the bonding portion 71 is spaced from the inner edge 60a of the side sheet 60 to the outside in the lateral direction X, and the outer edge is spaced from the side edge 20a of the topsheet 20 to the inner side in the lateral direction X. .
  • the bonding portion 71 may be linearly continuous in the vertical direction Y, or may extend in the vertical direction Y while drawing a curve or a spiral, and may be continuous without being divided. .
  • a welded portion 72 is formed between the side sheet 60 and the heat-meltable sheet 50 by heating and pressurization.
  • the laminated side sheet 60, top sheet 20, and heat-meltable sheet 50 are heated and pressurized by passing between an embossing roll and an anvil roll, and these sheets are subjected to a so-called embossing process.
  • a welded portion 72 is formed therebetween.
  • a recess is formed from the side sheet 60 to the heat-meltable sheet 50, and a welded portion 72 is formed at a position corresponding to the recess.
  • the side sheet 60 and the heat-meltable sheet 50 are desirably heated and pressurized to such an extent that no holes are formed in the sheets 50 and 60.
  • the heating temperature is set to about 100 to 130 ° C. and appropriately changing the pressure according to the shape of the embossing block in the embossing roll, it is possible to realize heating and pressurization to the extent that no holes are opened in the sheet. .
  • the side sheet 60 and the heat-meltable sheet 50 contain a thermoplastic resin
  • the thermoplastic resin is melted by heating.
  • the molten resin is heat-sealed to each other through the opening 21 of the topsheet 20 by pressurization, and the side sheet 60 and the heat-meltable sheet 50 are joined at the weld portion 72.
  • the welding part 72 the surface sheet 20 can be reliably joined between the side sheet 60 and the heat-meltable sheet 50, and these can be prevented from peeling off.
  • the welded portion 72 includes an inner welded portion 72a located in the region near the inner edge 60a of the side seat 60, an outer welded portion 72c located in the lateral X outer region of the inner welded portion 72a, and these inner and outer welded portions 72a and 72c. And a central weld portion 72b located in the intermediate region.
  • the dimension in the longitudinal direction Y of the inner welded portion 72a is larger than that of the central welded portion 72b, and that of the central welded portion 72b is larger than that of the outer welded portion 72c.
  • the inner welding portion 72a has a separation dimension in the vertical direction Y smaller than that of the central welding portion 72b, and a separation dimension in the vertical direction Y of the central welding portion 72b is smaller than that of the outer welding portion 72c. Therefore, in the region near the inner edge 60a where the inner welded portion 72a is formed, the area of the inner welded portion 72a per unit area is equal to the area of the central welded portion 72b per unit area in the intermediate region and the outer region. It is the largest compared to the area of the outer welded portion 72c per unit area. In other words, the density of the welded portion is large in the region near the inner edge 60a of the side seat 60, and is decreased toward the outer side in the lateral direction X.
  • the side sheet 60 and the top sheet 20 are joined most firmly at the inner welded portion 72a. Since the bonding part 71 is not formed on the inner edge 60a of the side sheet 60, the side sheet 60 and the top sheet 20 are not joined to each other via the bonding part 71. By firmly joining at 72a, the inner edge 60a of the side sheet 60 and the top sheet 20 can be securely fixed, and the inner edge 60a of the side sheet 60 is used when packaging and using sanitary napkins. , Can prevent inadvertent turning.
  • the outer welded portion 72c is at least partially overlapped with the adhesive portion 71. Therefore, the side sheet 60 and the heat-soluble sheet 50 are more firmly bonded via the top sheet 20 at the portion where the welded portion 72 and the adhesive portion 71 overlap.
  • the hot melt adhesive forming the adhesive part 71 is melted by heating again, and the surface sheet 20 is opened. By entering 21, the side sheet 60, the top sheet 20, and the heat-meltable sheet 50 can be joined more firmly.
  • a pressing groove 22 is formed from the top sheet 20 toward the absorber 40.
  • the compressed groove 22 is formed by heating and pressing from the top sheet 20 toward the absorber 40.
  • the absorbent body 40 is retained and the entire sanitary napkin 1 is prevented from being deformed.
  • the outer edge 60b of the side sheet 60 and the side edge of the back sheet 30 are joined to each other by heating and pressing.
  • the pressing groove 22 it is preferable that the low density convex part and the high density recessed part are arranging alternately in the length direction.
  • the topsheet 20 is joined to the sidesheet 60 by the adhesive portion 71, and the sidesheet 60 and the heat-meltable sheet 50 are joined to each other by the welded portion 72 through the opening 21.
  • the topsheet 20 can be reliably fixed between the sheets 50 and 60.
  • cotton fibers which are non-heat-meltable fibers
  • the side sheets 60 and the heat-meltable sheet 50 are heat-sealed with the surface sheet 20 interposed therebetween. 20 does not peel off.
  • the adhesion part 71 and the welding part 72 overlap in part, the surface sheet 20 and the side sheet 60 are more firmly joined, and it can be made harder to peel.
  • the opening 21 is not formed in the topsheet 20
  • the side sheets and the thermoplastic resin of the heat-meltable sheet 50 can be joined to each other through the fiber gap of the topsheet 20.
  • the opening 21 of the topsheet 20 is formed by fluid ejection, but is not limited thereto, and for example, the opening 21 can be formed by putting a needle or the like on the topsheet 20.
  • the hole 21 is formed by pointing the needle, there is a possibility that a protruding portion is formed on one of the surfaces.
  • the protrusion may be crushed and block the opening 21 when the topsheet 20 is pressurized, but when the opening 21 is formed by fluid ejection. No protrusion is formed, and this problem can be prevented in advance.
  • the opening 21 can be formed simultaneously with the web formation which comprises the surface sheet 20, and can also be formed after web formation.
  • a spunlace fiber nonwoven fabric made of cotton is used as the top sheet 20.
  • the opening 21 can be formed in the web. it can.
  • the opening 21 places a web for forming the surface sheet 20 on a sheet support formed with a plurality of protrusions spaced apart from each other in the vertical and horizontal directions, and faces the sheet support from the side of the web facing the sheet support. It can be formed by ejecting a columnar fluid.
  • the fibers corresponding to the protrusions move to the periphery of the protrusions and are rearranged (or reoriented) to form the apertures 21.
  • a roll formed with a protrusion, a net, a mesh, or the like can be used as the sheet support.
  • a net or mesh a plurality of wire rods that are plain weave and intersect each other, and an intersection (knuckle portion), that is, a projection portion can be used.
  • the top sheet 20 is formed of cotton fibers, but may be any material that includes at least non-heat-meltable fibers such as natural fibers.
  • the non-heat-meltable fiber for example, rayon fiber can be used in addition to cotton fiber.
  • the top sheet 20 may contain non-heat-meltable fibers at about 50% or more, preferably about 67% or more. This is because when the content of the non-heat-meltable fiber is reduced, the characteristics of the surface sheet 20 are hardly exhibited.
  • the opening 21 is an oval whose dimension in the vertical direction Y is larger than the dimension in the horizontal direction X, but can also be a circle or a rectangle having substantially the same dimensions in the vertical direction Y and the horizontal direction X. If the side sheet 60 and the heat-meltable sheet 50 can be joined through the opening 21, the size and shape can be changed as appropriate.
  • the heat-meltable sheet 50 and the side sheet 60 contain the same kind of thermoplastic resin. Therefore, these sheets 50 and 60 are easily welded to each other by heating. Further, when the heat-meltable sheet 50 and the side sheet 60 are formed of core-sheath composite fibers, the resin located on the surface (sheath) of the fibers is matched in both sheets 50 and 60. It is desirable. In addition, when the core-sheath type composite fiber is used in this way, only the surface (sheath) of the fiber is melted by heating and the center (core) is not melted. Cutting can be prevented.
  • the present invention relates to the improvement of the following absorbent article 1.
  • the absorbent article 1 has a longitudinal direction Y and a transverse direction X, and is a skin-facing surface and a non-skin-facing surface that is the opposite side thereof, and a topsheet 20 that is located on the skin-facing surface and includes non-thermomeltable fibers.
  • a back sheet 30 positioned on the non-skin facing surface and a body fluid absorber 40 positioned between the front and back sheets 10 and 20.
  • the present invention is a pair of side sheets 60 disposed on the skin-facing surface of the top sheet 20 and spaced apart in the lateral direction X, and the top sheet 20 and the absorber 40. And a heat-meltable sheet 50 that overlaps the side sheet 60 with the top sheet 20 interposed therebetween.
  • the side sheet 60 and the heat-meltable sheet 50 are formed of synthetic fibers containing a thermoplastic resin.
  • a welded portion 72 is formed between the side sheet 60 and the heat-meltable sheet 50 to join them together by heat melting via the surface sheet 20.
  • the above invention can include at least the following embodiments.
  • An adhesive part 71 is formed between the side sheet 60 and the surface sheet 20 to bond them together. At least a part of the adhesive part 71 and the welded part 72 overlap each other. It is formed.
  • a large number of apertures 21 penetrating in the thickness direction are formed in the surface sheet 20, and at least a part of the welded portion 72 is formed to overlap the apertures 21.
  • At least a part of the bonding portion 71 is formed so as to overlap the opening 21.
  • the adhesive portion 71 is formed away from the inner edge 60 a of the side sheet 60 in the lateral direction X.
  • a large number of the welded portions 72 are formed apart from each other in the longitudinal direction Y, and are formed along at least the inner edge 60 a of the side sheet 60. (6) A large number of the welded portions 72 are formed apart from each other in the lateral direction X, and the area of the welded portion 72 per unit area in the region in the vicinity of the inner edge 60a of the side seat 60 is outside of the area. The area is larger than the area of the welded portion 72 per unit area in the region.
  • the side sheet 60 and the heat-meltable sheet 50 include the same kind of thermoplastic resin.
  • the top sheet 20 is a spunlace fiber nonwoven fabric. (9) The non-heat-meltable fiber is a natural fiber. (10) The non-heat-meltable fiber is a cotton fiber.
  • sanitary napkin 1 that is an example of an absorbent article.
  • various known materials that are usually used in this type of field are used for each component constituting the sanitary napkin 1 that is an example of an absorbent article. Can be used without limitation.

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  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Laminated Bodies (AREA)
PCT/JP2012/071001 2011-09-22 2012-08-20 吸収性物品 Ceased WO2013042501A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020147010407A KR101966273B1 (ko) 2011-09-22 2012-08-20 흡수성 물품
CN201280046098.3A CN103826584B (zh) 2011-09-22 2012-08-20 吸收性物品

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011207932A JP5863359B2 (ja) 2011-09-22 2011-09-22 吸収性物品
JP2011-207932 2011-09-22

Publications (1)

Publication Number Publication Date
WO2013042501A1 true WO2013042501A1 (ja) 2013-03-28

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PCT/JP2012/071001 Ceased WO2013042501A1 (ja) 2011-09-22 2012-08-20 吸収性物品

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JP (1) JP5863359B2 (enExample)
KR (1) KR101966273B1 (enExample)
CN (1) CN103826584B (enExample)
WO (1) WO2013042501A1 (enExample)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3254655A1 (en) * 2016-06-10 2017-12-13 Welspun India Limited Top sheet for personal care product
EP3434239A4 (en) * 2016-03-24 2019-04-03 Daio Paper Corporation ABSORBENT ARTICLE
US11173077B2 (en) 2017-10-19 2021-11-16 The Procter & Gamble Company Topsheet comprising natural fibers with good mechanical strength
EP3777801A4 (en) * 2018-03-28 2022-01-05 Daio Paper Corporation ABSORBENT ARTICLE
US11291595B2 (en) 2017-10-19 2022-04-05 The Procter & Gamble Company Topsheet comprising natural fibers
US12004932B2 (en) 2019-07-16 2024-06-11 The Procter & Gamble Company Apertured nonwoven webs

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* Cited by examiner, † Cited by third party
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JP6212531B2 (ja) * 2015-11-30 2017-10-11 大王製紙株式会社 吸収性物品
JP6129291B1 (ja) * 2015-12-29 2017-05-17 ユニ・チャーム株式会社 吸収性物品の製造方法
JP6242423B2 (ja) * 2016-03-29 2017-12-06 大王製紙株式会社 吸収性物品
JP7190852B2 (ja) 2018-09-18 2022-12-16 大王製紙株式会社 吸収性物品
JP6821726B2 (ja) * 2019-02-22 2021-01-27 大王製紙株式会社 吸収性物品
JP7370151B2 (ja) * 2019-03-27 2023-10-27 大王製紙株式会社 使い捨ておむつ
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KR20140064984A (ko) 2014-05-28
CN103826584B (zh) 2015-11-25
JP5863359B2 (ja) 2016-02-16

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