WO2010038605A1 - 吸収性物品 - Google Patents

吸収性物品 Download PDF

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Publication number
WO2010038605A1
WO2010038605A1 PCT/JP2009/065998 JP2009065998W WO2010038605A1 WO 2010038605 A1 WO2010038605 A1 WO 2010038605A1 JP 2009065998 W JP2009065998 W JP 2009065998W WO 2010038605 A1 WO2010038605 A1 WO 2010038605A1
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WO
WIPO (PCT)
Prior art keywords
flap
width direction
absorbent article
fold line
length
Prior art date
Application number
PCT/JP2009/065998
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
由美 則元
Original Assignee
大王製紙株式会社
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 大王製紙株式会社 filed Critical 大王製紙株式会社
Publication of WO2010038605A1 publication Critical patent/WO2010038605A1/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
    • A61F13/475—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means

Definitions

  • the present invention relates to absorbent articles for women such as sanitary napkins, panty liners, incontinence pads and the like for absorbing menstrual blood and vaginal discharge.
  • an absorbent article 50 such as a sanitary napkin, a panty liner, a cage sheet, an incontinence pad, etc., as shown in FIG. 7, for example, a liquid-impermeable back sheet made of a polyethylene sheet or a polyethylene laminated nonwoven fabric, etc.
  • wing-shaped flaps 54 and 54 are formed to be fixed so as to entrain the portion, and the hip-hold flaps are fixed to the inner side of the buttock of the underwear when worn on both sides of the main body portion on the rear side.
  • One in which 55 and 55 are formed is known.
  • one or a plurality of adhesive layers 56 are formed on the non-skin contact surface side (outer surface of the back sheet 51) of the main body portion.
  • pressure-sensitive adhesive layers 57, 57 and 58, 58 are provided on the surfaces (outer surfaces) of the wing-shaped flaps 54, 54 and hip-hold flaps 55, 55 on the back sheet 51 side, respectively.
  • the absorbent article 50 When the absorbent article 50 is fixed to the undergarment 30, as shown in FIG. 8, the absorbent article 50 is locally applied and the wing-shaped flaps 54, 54 protruding sideways are taken out from the underwear, The wing-shaped flaps 54, 54 are folded at folding lines RL, RL, and the adhesive layers 57, 57 are attached to the outer surface of the crotch portion of the underwear 30 while the crotch portion of the underwear is wound, and at the same time for the hip hold The flaps 55, 55 are expanded at the buttock portion, and the hips-stopping adhesive layers 58, 58 are adhered to the inner surface of the heel portion of the underwear 30.
  • the absorbent article 50 when the absorbent article 50 is individually packaged, the flap portions 54 and 55 on both sides are folded inside, and the adhesive layers 56... 57.
  • the packaging sheet is arranged on the outer surface side of the absorbent article 50, the absorbent article 50, the release paper, and the packaging sheet are both folded in multiple in the longitudinal direction, and the side edge portion is heat-sealed.
  • the opening part is fixed with a tag tape or the like.
  • Patent Document 1 an absorption body that is individually packaged by folding the flaps of the left and right side edges in the longitudinal direction of the absorbent main body toward the skin contact surface side, and performing uneven processing on the folding axis of the flap and / or its vicinity.
  • a packaging structure for a functional article is disclosed.
  • a fold extending in the width direction is formed in the rear wing by being folded and wrapped in the longitudinal direction at least once, so that the fold in the rear wing is not included.
  • An absorbent article is disclosed in which a highly rigid portion having high bending strength is provided in the wing. JP 2006-192261 A JP 2008-188181 A
  • the crease portion where the crease or wrinkle is most likely to occur is low in rigidity. It is not a measure to prevent wrinkles.
  • a main problem of the present invention is to provide an absorbent article that prevents creases and wrinkles generated in the flap portion when the absorbent article is individually mounted for the purpose of reducing the uncomfortable feeling at the time of wearing. is there.
  • the present invention according to claim 1, there are flap portions where the absorber is not interposed respectively on both sides of the main body portion where the absorber is interposed between the liquid-permeable top sheet and the back sheet.
  • the absorbent article is formed such that, in the unfolded state, the width direction length between both side edges of the region corresponding to the width direction fold line position is relatively smaller than the width direction length of the front and rear regions.
  • the width direction length between both side edges of the region corresponding to the width direction fold line position is relatively larger than the width direction length of the front and rear regions. Since it is formed so as to be smaller, each of the flap portions is folded back to the main body portion side, and when folded in the longitudinal direction at the position of the width direction fold line to be individually packaged, at the position of the width direction fold line The formation of wrinkles due to the doweling of the flap portion is greatly reduced, so that even if the flap portion is expanded after opening, no creases or wrinkles remain on the flap portion, so that it can be mounted without a sense of incongruity.
  • the side edge of the flap portion of the region corresponding to the widthwise fold line position is provided with a concave portion that is relatively recessed from the front and rear regions thereof, so that the width in the unfolded state is provided.
  • the front and back regions of the side portion of the flap portion of the region corresponding to the width direction fold line position are provided.
  • a relatively recessed recess is provided.
  • each of the flap portions is folded back to the main body portion side at the position of the longitudinal fold line outside the absorber side edge,
  • a wing-like flap fixed to the flap portion so as to wrap around the crotch portion of the underwear is attached to the flap portion, and is fixed to the inner surface side of the heel portion of the underwear at the rear side.
  • Hip hold flap is formed,
  • the width-direction fold line is located on the hip-hold flap, the point on the outline line where the width-direction length at the rear base of the wing-shaped flap is minimal, and the width-direction length of the hip-hold flap is The absorbent article according to any one of claims 1 to 3, wherein a straight line connecting a point on the outer shape line that is a maximum is inclined outwardly within a range of 10 ° to 15 ° with respect to a longitudinal line.
  • the straight line connecting the points is 10 ° to 15 ° outward with respect to the longitudinal line so that the flap portion can be easily folded without wrinkles. Inclined within the range of °.
  • the absorbent article when the absorbent article is individually packaged, it is possible to prevent creases and wrinkles that occur in the flap portion, and to reduce the uncomfortable feeling at the time of wearing.
  • FIG. 1 is a partially broken development view in which a sanitary napkin 1 according to the present invention is arranged on a packaging sheet 10 in an unfolded state.
  • the sanitary napkin 1 includes a liquid-impervious back sheet 2 made of a polyethylene sheet, a polypropylene sheet, and the like, a liquid-permeable top sheet 3 that allows permeation of menstrual blood, cages, and the like, and both the sheets 2, It is comprised from the absorber 4 which consists of cotton-like pulp, synthetic pulp, etc. interposed between 3 and the side nonwoven fabric 6 formed along the longitudinal direction in the surface side both sides, respectively.
  • a flap portion not formed with the absorbent body 4 is formed, and the wing-like flaps W and W fixed so as to entrain the crotch portion of the underwear at the time of wearing, and the main body on the rear side of the flap portion.
  • Hip holding flaps W B and W B that are fixed to the inner side of the heel portion of the underwear at the time of wearing are included on both side edges in the longitudinal direction of the portion.
  • the absorbent body 4 can be surrounded by crepe paper for shape retention and diffusibility improvement.
  • the wing-shaped flaps W, the surface (back surface) of the backsheet 2 side of the W, together with the wing-fixing adhesive layer 8, 8 are formed, hip hold flaps W B, W backsheet 2 of B On the side surface (back surface), hip-slipping prevention adhesive layers 8B and 8B are formed.
  • the back surface of the main body portion in which the absorbent body 4 is interposed between the top sheet 3 and the back sheet 2 is provided with a plurality of strips according to an appropriate application pattern for fixing to the underwear, and in the illustrated example, three strip bodies. Displacement prevention adhesive layers 7, 7,... Are formed.
  • the sanitary napkin 1 is disposed on the packaging sheet 10 via a release paper 5 that releasably covers the main-body displacement preventing adhesive layer 7.
  • the wing-shaped flaps W, W and hip hold flaps W B, W B are respectively at the outer longitudinal fold lines L3, L3 position from both side edges of the absorbent body 4, the surface of the topsheet 3 side
  • the pair of wings-stop adhesive layers 8 and 8 are releasably covered by the wings-stop adhesive layer release paper 11 and the pair of hips-stop adhesive layers 8B and 8B.
  • the flap portion in order to prevent the flap portion from being folded and wrinkled when the individual packaging state is set, the flap portion is provided with a predetermined crease prevention structure that will be described in detail later.
  • the back sheet 2 is made of a sheet material having at least a water shielding property such as an olefin resin sheet such as polyethylene or polypropylene.
  • a laminated nonwoven fabric in which a nonwoven fabric is laminated on a polyethylene sheet or the like, and further a waterproof film is interposed.
  • a non-woven sheet in this case, a waterproof film and a non-woven fabric constitute a liquid impermeable back sheet
  • those having moisture permeability tend to be used.
  • This water- and moisture-permeable sheet material is a microporous sheet obtained by forming a sheet by melting and kneading an inorganic filler in an olefin resin such as polyethylene or polypropylene, and then stretching in a uniaxial or biaxial direction. It is.
  • the backsheet 2 is made of a polylaminated nonwoven fabric in which a plastic film and a nonwoven fabric are laminated, so that the flap portion has a stiffness. Is desirable.
  • a porous or non-porous nonwoven fabric or a porous plastic sheet is preferably used as the top sheet 3.
  • the material fibers constituting the nonwoven fabric include synthetic fibers such as polyethylene or polypropylene, synthetic fibers such as polyester and polyamide, recycled fibers such as rayon and cupra, and natural fibers such as cotton.
  • a nonwoven fabric obtained by an appropriate processing method such as a lace method, a spun bond method, a thermal bond method, a melt blown method, or a needle punch method can be used.
  • the spunlace method is excellent in terms of flexibility and drapeability
  • the thermal bond method is excellent in terms of being bulky and soft.
  • the absorber 4 interposed between the back sheet 2 and the top sheet 3 is composed of, for example, fluffy pulp and a water-absorbing polymer.
  • the water-absorbing polymer is mixed in the pulp constituting the absorber, for example, as granular powder.
  • the pulp include chemical fibers obtained from wood, cellulose fibers such as dissolved pulp, and artificial cellulose fibers such as rayon and acetate.
  • Softwood pulp having a longer fiber length than hardwood pulp functions and It is preferably used in terms of price.
  • synthetic fibers may be mixed in the absorber 4.
  • synthetic fiber for example, polyolefins such as polyethylene or polypropylene, polyesters such as polyethylene terephthalate and polybutylene terephthalate, polyamides such as nylon, and copolymers thereof can be used. It may be a mixture.
  • a composite fiber such as a core-sheath fiber, a side-by-side fiber, or a split fiber having a fiber having a high melting point as a core and a fiber having a low melting point as a sheath can also be used.
  • hydrophobic fiber it is desirable to use a synthetic fiber that has been surface-treated with a hydrophilizing agent so as to have an affinity for body fluids.
  • a water-repellent treated nonwoven fabric or a hydrophilic treated nonwoven fabric can be used from the viewpoint of an important function. For example, if importance is placed on functions such as preventing permeation of menstrual blood or vaginal discharge, or enhancing the touch feeling, water repellent treatment coated with silicon, paraffin or alkylchromic chloride water repellent It is desirable to use a nonwoven fabric.
  • the wing-shaped flaps W, W and / or hip hold flaps W B if emphasize absorbent such as menstrual blood in W B, compounds having a hydrophilic group in the process of manufacturing synthetic fiber, for example, polyethylene glycol Synthetic fibers can be swollen by a method of polymerizing in the presence of an oxidation product or a method of treating with a metal salt such as stannic chloride, partially dissolving the surface to make it porous, and depositing a metal hydroxide. It is desirable to use a hydrophilic treated nonwoven fabric that is porous and hydrophilic by applying capillary action. In particular, in the present invention, in order to reduce creases and wrinkles in the flap portion, it is desirable to use a soft air-through nonwoven fabric as the side nonwoven fabric 6 that is difficult to crease and wrinkle.
  • a styrene polymer for example, a styrene polymer, a tackifier, or a plasticizer that is mainly used is preferably used.
  • the styrenic polymer include styrene-ethylene-butylene-styrene block copolymers, styrene-butylene-styrene block copolymers, and styrene-isobutylene-styrene copolymers. It may be used or two or more polymer blends.
  • a styrene-ethylene-butylene-styrene block copolymer is preferred because of its good thermal stability.
  • the tackifier and plasticizer those that are solid at room temperature can be preferably used.
  • the tackifier include C5 petroleum resins, C9 petroleum resins, dicyclopentadiene petroleum resins, and rosin petroleum resins.
  • Polyterpene resin, terpene phenol resin, etc., and examples of the plasticizer include monomer plasticizers such as trifresil phosphate, dibutyl phthalate, dioctyl phthalate, and polymer plasticizers such as vinyl polymers and polyesters. It is done.
  • release paper 11 for the wings-stopping adhesive layer and the release paper 12 for the hips-stopping adhesive layer for example, a silicone-based resin, a fluorine-based resin, or a four-sided contact surface with respect to the slip-stopping adhesive layers 8 and 8B.
  • a paper or plastic sheet that has been subjected to a release treatment such as a release treatment solution such as a fluoroethylene resin or spray applied can be used.
  • a release treatment solution such as a fluoroethylene resin or spray applied
  • the film itself or the nonwoven fabric itself may be used as long as it does not cause a substantial decrease in the adhesive force without special release treatment.
  • the packaging sheet 10 for individually mounting the sanitary napkin 1 has predetermined front and rear and left and right sides of the planar dimension of the napkin 1 in a state where the flap portions on both sides are folded back to the surface on the surface sheet 3 side.
  • the sheet is formed in a substantially rectangular shape having a size larger than that of the sheet.
  • a plastic film or a non-woven fabric can be used, but preferably it is thin and highly flexible in that the tearing sound at the time of opening can be reduced and the contact sound with other objects can be reduced at the time of carrying. It is good to use a nonwoven fabric.
  • the width dimension of the said packaging sheet 10 is taken as the dimension which the sealing means mentioned later is ensured.
  • the release paper 5 On the contact surface of the packaging sheet 10 on the napkin 1 side, the release paper 5 that has been subjected to the same release treatment as described above with respect to the contact surface with respect to the main body anti-adhesive adhesive layer 7. It is the magnitude
  • the release treatment of the release paper 5 is performed only on the surface covering the pressure-sensitive adhesive layer 7 of the napkin 1, and the surface to be bonded to the packaging sheet 10 on the opposite side is provided with the packaging sheet 10 and In order to ensure the adhesive property, the release treatment is not performed.
  • the packaging sheet 10 and the release paper 5 are bonded to each other at an appropriate place, specifically, several places in the longitudinal direction.
  • a tag tape 15 is provided in the approximate center of the short side edge of the packaging sheet 10.
  • the tag tape 15 is a member made of paper, plastic film, or the like.
  • the base end side is bonded to the packaging sheet 10 so as not to be peeled off, a peelable adhesive layer is provided on the protruding portion, and the tip portion is non-adhesive.
  • the knob part is formed.
  • the width direction folding line L1 on the rear side of the sanitary napkin 1 the length in the width direction B B between both side edges of the region corresponding to the folding line L1 position, widthwise length of the front and rear regions It is formed so as to be relatively smaller than the height A B , that is, a relationship of A B > B B. Further, in the width direction fold line L2 on the front side, the width direction length B of the region corresponding to the position of the fold line L2 is relatively smaller than the width direction length A of the front and rear regions (A> B). Is formed.
  • folding each The width direction length in the front region from the line position may be different from the width direction length in the rear region.
  • the folding line L1 widthwise length A 'B in the front region from the position is, the width direction in the rear region length is formed to be smaller than the a B, in the width direction fold line L2 of the front, the folding line L2 widthwise length a in the front region of the position 'is smaller than the widthwise length of the rear region a as Is formed.
  • concave portions 20 are provided on both side edges of the flap portion in the region corresponding to the rear width direction fold line L1 position, and on both side edges of the flap portion in the region corresponding to the front width direction fold line L2 position. Is provided with a recess 21.
  • the area of the flap portion that is folded to the surface side is the width of the folding lines L1 and L2 in the width direction. Since the area is smaller than the front and rear areas, even when folded in the longitudinal direction at the positions of the width direction fold lines L1, L2, the occurrence of wrinkles due to the dowels at the fold line position is greatly reduced. Therefore, even if the flap part is unfolded after opening, no creases or wrinkles remain on the flap part, and it can be attached without a sense of incongruity.
  • FIG. 4 is a development view of another form of the sanitary napkin 1A.
  • the sanitary napkin 1A of the present embodiment is formed by forming indented recesses 22 and 23 at portions where the longitudinal fold lines L3 and L3 and the outline of the sanitary napkin 1A intersect in the deployed state ( For details, see the enlarged view of FIG. As a result, even when the flap portion is folded at the positions of the longitudinal fold lines L3 and L3, no creases are generated at the front and rear end portions, and creases and wrinkles can be prevented.
  • FIG. 6 is a developed view of another form of the sanitary napkin 1B.
  • the sanitary napkin 1B of the present embodiment is a preferred embodiment particularly when the width-direction fold line L1 is located on the hip-hold flaps W B and W B , and the width direction length at the rear base portion of the wing-shaped flap W the point P 0 of the contour line as the Saga minimum width direction length a B in Hip hold flaps W B, 'P points of the profile line of B is maximum, P' a straight line R connecting the and the longitudinal It is formed so as to be inclined outwardly within a range of 10 ° to 15 ° with respect to the direction line R 0 .
  • the flap portion is easily folding, wrinkle It becomes difficult to become.
  • the flap portions on both sides are folded back on the surface on the surface sheet 3 side by so-called belly folds at the positions of the longitudinal fold lines L3 and L3 outside the both side edges of the absorbent body 4, respectively.
  • the flap portions on both sides may be folded back to the surface on the back sheet 2 side by so-called back folding.
  • the wing-like flaps W to the flap portion of the sides of the napkin body, W and hip hold flaps W B was a napkin W B are formed, the flaps W B for hip hold, W B but also not formed napkins, wing-shaped flaps W, W and hip hold flaps W B, can be likewise applied to the napkin W B is not formed.
  • sanitary napkin 1 It is a partial fracture development view of sanitary napkin 1 concerning the present invention. It is a top view which shows the individual packaging point of the sanitary napkin 1.
  • FIG. It is a perspective view which shows an individual packaging state. It is an expanded view of 1 A of sanitary napkins of other forms. It is the V section enlarged view of FIG. It is an expanded view of the sanitary napkin 1B of the other form. It is an expanded view of the conventional absorbent article 50. It is a wearing state figure of absorptive article 50.

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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)
PCT/JP2009/065998 2008-09-30 2009-09-14 吸収性物品 WO2010038605A1 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2008252716A JP4732497B2 (ja) 2008-09-30 2008-09-30 吸収性物品
JP2008-252716 2008-09-30

Publications (1)

Publication Number Publication Date
WO2010038605A1 true WO2010038605A1 (ja) 2010-04-08

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102614051A (zh) * 2011-09-30 2012-08-01 尤妮佳股份有限公司 吸收性物品
WO2014204018A3 (ja) * 2013-09-03 2015-03-12 ユニ・チャーム株式会社 吸収性物品の個包装体
CN108883003A (zh) * 2016-12-26 2018-11-23 花王株式会社 吸收性物品的单个包装体
US11357672B2 (en) 2016-11-25 2022-06-14 Daio Paper Corporation Individually packaged absorbent article, absorbent article, and method for folding absorbent article

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5082006B1 (ja) * 2011-09-30 2012-11-28 ユニ・チャーム株式会社 吸収性物品
JP5944218B2 (ja) * 2012-04-27 2016-07-05 ユニ・チャーム株式会社 吸収性物品
JP6141008B2 (ja) * 2012-07-19 2017-06-07 ユニ・チャーム株式会社 吸収性物品
JP6162412B2 (ja) * 2013-01-29 2017-07-12 大王製紙株式会社 吸収性物品
JP6151594B2 (ja) * 2013-07-29 2017-06-21 大王製紙株式会社 吸収性物品
JP6420724B2 (ja) * 2015-06-08 2018-11-07 ユニ・チャーム株式会社 吸収性物品
JP6211151B1 (ja) * 2016-07-27 2017-10-11 大王製紙株式会社 吸収性物品

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JPH0321238A (ja) * 1989-06-19 1991-01-30 Daio Paper Corp 紙おむつ
JP2003235893A (ja) * 2002-02-21 2003-08-26 Daio Paper Corp 吸収性物品
JP2008531227A (ja) * 2005-03-14 2008-08-14 ザ プロクター アンド ギャンブル カンパニー スキンケア組成物の移動に対抗するバリアシートを有する吸収性物品
JP2008188181A (ja) * 2007-02-02 2008-08-21 Uni Charm Corp 吸収性物品

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Publication number Priority date Publication date Assignee Title
JP4476611B2 (ja) * 2003-05-29 2010-06-09 ユニ・チャーム株式会社 生理用ナプキン
JP4849923B2 (ja) * 2005-04-01 2012-01-11 花王株式会社 吸収性物品の包装構造

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Publication number Priority date Publication date Assignee Title
JPH0321238A (ja) * 1989-06-19 1991-01-30 Daio Paper Corp 紙おむつ
JP2003235893A (ja) * 2002-02-21 2003-08-26 Daio Paper Corp 吸収性物品
JP2008531227A (ja) * 2005-03-14 2008-08-14 ザ プロクター アンド ギャンブル カンパニー スキンケア組成物の移動に対抗するバリアシートを有する吸収性物品
JP2008188181A (ja) * 2007-02-02 2008-08-21 Uni Charm Corp 吸収性物品

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102614051A (zh) * 2011-09-30 2012-08-01 尤妮佳股份有限公司 吸收性物品
WO2014204018A3 (ja) * 2013-09-03 2015-03-12 ユニ・チャーム株式会社 吸収性物品の個包装体
CN105142584A (zh) * 2013-09-03 2015-12-09 尤妮佳股份有限公司 吸收性物品的单个包装体
CN105142584B (zh) * 2013-09-03 2019-09-10 尤妮佳股份有限公司 吸收性物品的单个包装体
US11357672B2 (en) 2016-11-25 2022-06-14 Daio Paper Corporation Individually packaged absorbent article, absorbent article, and method for folding absorbent article
CN108883003A (zh) * 2016-12-26 2018-11-23 花王株式会社 吸收性物品的单个包装体
CN108883003B (zh) * 2016-12-26 2019-10-29 花王株式会社 吸收性物品的单个包装体

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