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WO2015198665A1 - Article a porter - Google Patents

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Publication number
WO2015198665A1
WO2015198665A1 PCT/JP2015/058598 JP2015058598W WO2015198665A1 WO 2015198665 A1 WO2015198665 A1 WO 2015198665A1 JP 2015058598 W JP2015058598 W JP 2015058598W WO 2015198665 A1 WO2015198665 A1 WO 2015198665A1
Authority
WO
WIPO (PCT)
Prior art keywords
liquid
absorption
absorbent
longitudinal direction
wearing article
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/JP2015/058598
Other languages
English (en)
Japanese (ja)
Inventor
賢一 笹山
邦彦 桂川
守 大尾
裕樹 合田
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
Priority claimed from JP2014133409A external-priority patent/JP2016010516A/ja
Priority claimed from JP2014133407A external-priority patent/JP2016010514A/ja
Application filed by Unicharm Corp filed Critical Unicharm Corp
Publication of WO2015198665A1 publication Critical patent/WO2015198665A1/fr
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
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent 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 specially adapted to be worn around the waist, e.g. diapers, nappies
    • A61F13/494—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 specially adapted to be worn around the waist, e.g. diapers, nappies characterised by edge leakage prevention means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent 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 specially adapted to be worn around the waist, e.g. diapers, nappies
    • A61F13/496—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 specially adapted to be worn around the waist, e.g. diapers, nappies in the form of pants or briefs
    • 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
    • A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad

Definitions

  • This disclosure relates to wearing articles such as disposable toilet training pants, disposable incontinence pants, and disposable sanitary pants.
  • Patent Document 1 discloses a disposable wearing article including a diaper main body having front and rear waist regions and a crotch region, and a liquid absorbing structure.
  • Patent Document 2 includes a diaper main body having a front and rear waist region and a crotch region, and a liquid absorbing structure, and the liquid absorbing structure includes at least a first absorbing portion disposed in the crotch region, A disposable wearing article having a second absorbent part positioned on a leak-proof wall standing on both sides of one absorbent part is disclosed.
  • JP 2002-78736 A Japanese Utility Model Publication No. 6-17724
  • the elastic member is disposed along both side edges of the liquid absorbing structure, and the liquid absorbing structure is caused by the contraction force of the elastic member in the wearing state of the wearing article. Both side edge portions of the two are raised, and a pair of rising absorption portions are formed. In this way, by forming the absorbing part that rises from a part of the liquid-absorbing structure, it is possible to prevent body fluid from flowing out from the center of the wearing article to leak to the outside. , Part of it can be absorbed and retained.
  • the rising-up absorption part is raised by the elastic member located on the free side edge thereof and abuts on the wearer's body, the portion where the elastic member is arranged fits the body, but the uplifting absorption part The whole body does not fit in a plane, and leakage of body fluids that connect the body cannot be effectively prevented.
  • the leak-proof wall located between the first absorbent part and the second absorbent part is formed of a hydrophobic fiber nonwoven fabric and does not have liquid absorbency.
  • the body fluid may leak out of the liquid absorbing structure.
  • the subject of the 1st and 2nd invention of this application is in provision of the disposable wearing article which can prevent side leakage of a bodily fluid effectively by a rising-type absorption part.
  • the first and second aspects of the present invention provide a longitudinal direction and a lateral direction, a skin facing surface and a clothing facing surface, a front waist region, a rear waist region, and a front waist region. It is related with the wearing article containing the crotch area located in (2) and the liquid absorption structure provided with the liquid absorptive core at least arrange
  • the liquid absorbing structure is located on the skin-facing surface of at least the first absorbent portion located in the crotch region and on both sides of the first absorbent portion, and the longitudinal direction.
  • a pair of second absorbent parts extending to the first absorbent part, wherein the second absorbent part comprises a contact surface that comes into contact with the wearer's body, a proximal part that is continuous with the first absorbent part, and a distal part.
  • the second absorption part is divided into a first area located on the distal part side and a second area located on the proximal part side, and the abutment of the second absorption part
  • the surface has liquid permeability, and a side elastic body extending in the longitudinal direction is disposed in the first section and the second section.
  • the liquid absorbing structure includes a liquid absorbing core, a first absorbent part located at least in the crotch region, and a laterally outer side of the first absorbent part.
  • Two absorbent parts, the second absorbent part is bent toward the skin facing surface side of the first absorbent part, and both ends spaced apart in the longitudinal direction are fixed to the first absorbent part.
  • the second absorbent portion is provided with a side elastic body extending in the longitudinal direction, the liquid absorbing core is located in the bent portion, and at least a part thereof, A concave bent guide portion formed by embossing / debossing extending in the longitudinal direction is located.
  • a liquid absorption structure has a 1st absorption part and a pair of 2nd absorption part located on the skin opposing surface, and a 2nd absorption part has a side part elastic body. Is attached, the second absorption part fits in a planar shape with respect to the wearer's body in the wearing state, and the side leakage of excrement can be effectively prevented. Moreover, since the surface which contact
  • a liquid absorption structure has the 1st absorption part which consists of the center part, and the 2nd absorption part bent by the skin opposing surface side of the 1st absorption part. Since the concave folding guide portion formed by embossing / debossing is located at least in part of the bent portion, the bending process at the time of manufacture is easy and the posture of the wearer Even if it changes, there is no possibility that bending will be cancelled
  • FIG. 17 The perspective view of the liquid absorption structure of the diaper which concerns on 3rd Embodiment. Sectional drawing which follows the XIII-XIII line shown in FIG.
  • A The partially broken expansion
  • B The partially broken perspective view of a liquid absorption structure.
  • A) The elements on larger scale enclosed with the dashed-dotted line XVIII (a) in FIG. 17 (a).
  • FIG. 16 is a sectional view taken along line XIX-XIX in FIG. 15.
  • FIG. 20 is a partially enlarged view of a portion surrounded by an alternate long and short dash line XX in FIG. 19.
  • the top view of a liquid absorption structure which shows only a joining area
  • FIG. 23 is a sectional view taken along line XXIII-XXIII in FIG. 22; The top view of the liquid absorption structure of the diaper which concerns on 5th Embodiment.
  • FIG. 26 is a sectional view taken along line XXVI-XXVI shown in FIG. 25.
  • FIG. 28 is a sectional view taken along line XXVIII-XXVIII in FIG. 27.
  • the disposable pull-on diaper 10 shown as an example of the pull-on wearing article of the first invention has a longitudinal direction Y and a lateral direction X, a longitudinal center line P that divides the lateral direction X into two equal parts, and the longitudinal direction Y dimension.
  • the horizontal center line Q is divided into two equal parts, and includes an absorption chassis 11 and an annular elastic waist panel 12.
  • the term "pull-on wearing article” has a defined waist opening and a pair of leg openings, and inserts the wearer's leg into the leg opening and lifts the article over the waist to wear the wearer's body. It means what is attached to.
  • the diaper 10 includes a skin facing surface and a non-skin facing surface on the opposite side, a front waist region 13, a rear waist region 14, a crotch region 15 located between the front and rear waist regions 13, 14, a waist opening and a pair.
  • Leg opening 16 The waist opening is defined by an annular elastic waist panel 12, and the pair of leg openings 16 is defined by an absorption chassis 11 and an annular elastic waist panel 12.
  • the elastic waist panel 12 includes a front waist panel 18 located in the front waist region 13 and a rear waist panel 19 located in the rear waist region 14.
  • the front and rear waist panels 18 and 19 are opposed to the intermediate inner end edges 18a and 19a in the longitudinal direction Y while crossing the front and rear end parts 30 and 31 of the absorbent chassis 11 and extending in the lateral direction X.
  • the outer edges 18b and 19b extending in the lateral direction X, the outer edges 18c and 19c extending inward from the outer edges 18b and 19b, the outer edges 18c and 19c, and the intermediate inner edges 18a and 19a It is formed in a substantially trapezoidal shape by the concave curved inner edges 18d and 19d.
  • Each of the outer edges 18c of the front waist panel 18 and the outer edges 19c of the rear waist panel 19 are overlapped with each other and connected by side seams 20 extending intermittently in the longitudinal direction Y, thereby forming a waist opening and a pair.
  • Leg openings 16 are defined.
  • sheets that overlap each other are fused by embossing / debossing with heat or ultrasonic waves.
  • the front and rear waist panels 18 and 19 include inner layer sheets 21 and 22 positioned on the skin facing surface side, outer layer sheets 23 and 24 positioned on the clothing facing surface side, and a plurality of strips extending in the lateral direction X.
  • Front and rear waist elastic bodies 25 and 26 formed of a string-like or strand-like elastic material and attached so as to be shrinkable in a stretched state with, for example, a hot melt adhesive between the inner and outer layer sheets 21, 22, 23, and 24 .
  • the front waist elastic body 25 is composed of an outer front waist elastic body 25A extending in the lateral direction X along the outer end edge 18b of the front waist panel 18 and a pair of inner front waist elastic bodies arranged to be opposed to each other in the lateral direction X. 25B.
  • the rear waist elastic body 26 includes an outer rear waist elastic body 26A extending in the lateral direction X along the outer edge 19b of the rear waist panel 19 and a pair of intermediate rear waist elastic bodies disposed to face each other in the lateral direction X. 26 ⁇ / b> B and a pair of inner rear waist elastic bodies 26 ⁇ / b> C that extend in a concave manner along the inner edge 19 d and that are spaced apart from each other in the lateral direction X.
  • Various sheets constituting the front and rear waist panels 18, 19, that is, the inner and outer layer sheets 21, 22, 23, 24, are known, for example, a spunbond fiber nonwoven fabric or an SMS (spunbond / meltblown / spunbond) fiber nonwoven fabric. It can be formed from a fiber nonwoven fabric, a laminate sheet of a plastic film and a nonwoven fabric, or the like. The laminated sheets are joined to each other by, for example, a hot melt adhesive or heat welding means applied intermittently to at least one of the inner surfaces.
  • the front and rear waist elastic bodies 25 and 26 have string-like or strand-like elasticity, for example, having a fineness of about 300 to 1200 dtex and stretched and fixed about 1.8 to 3.5 times from a contracted or relaxed state. It can be formed from a material.
  • the absorption chassis 11 has a vertically long and substantially rectangular shape, and is connected to the skin facing surface of the front waist panel 18 and the skin end facing surface of the rear waist panel 19. It has an end portion 31 and an intermediate portion 32 that extends in the longitudinal direction Y between the front and rear end portions 30 and 31 and forms part of the crotch region 15.
  • the absorption chassis 11 includes a liquid-absorbing structure 35 having a liquid-permeable body-side liner 33 and an absorber 34 coated on the body side, and a clothing-facing surface side of the absorber 34. And a hydrophobic covering sheet 36 located therein.
  • the body side liner 33 can be formed from, for example, a spunbond fiber nonwoven fabric, an SMS fiber nonwoven fabric or the like that has been subjected to a hydrophilic treatment.
  • the covering sheet 36 is formed from a hydrophobic SMS fiber nonwoven fabric or a spunbond nonwoven fabric.
  • a leak-proof sheet 37 formed from a plastic film having moisture permeability and liquid impermeability is disposed.
  • the leak-proof sheet 37 is an option, and in the present embodiment, the joining areas 70 and 71 described later are provided for joining the liquid absorbing structure 35 and the leak-proof sheet 37. When not disposed, the liquid absorbing structure 35 and the covering sheet 36 are joined.
  • the absorbent body 34 includes, for example, a liquid absorbent core 43 formed of an absorbent / discrete material such as wood fluff pulp or super absorbent polymer particles (SAP), and a mass of about 10 covering the entire liquid absorbent core 43. And a liquid-permeable core cover sheet 44 formed of tissue paper or the like of ⁇ 20 g / m 2 .
  • the liquid absorption structure 35 includes a first absorption part (center part) 41, a pair of bending lines 40 that are located on both sides of the first absorption part 41 and extend in the vertical direction, It has the 2nd absorption part (both side part) 42 located in the outer side of the horizontal direction X from the bending line 40.
  • the second absorption part 42 is fixed to the first absorption part 41 via a front end fixing part 45 and a rear end fixing part 46, for example, coated with a hot melt adhesive, which are located on the first absorption part 41 along the bending line 40. Is done.
  • a plurality of side elastic bodies 38 are attached to the surface of the second absorbent portion 42 opposite to the surface where the front and rear end fixing portions 45 and 46 are located.
  • the side elastic body 38 is extended in the wearing state of the diaper 10 by bending both side portions of the liquid absorbing structure 35 inward and fixing them through the front and rear end fixing portions 45 and 46.
  • the 2nd absorption part 42 gets up toward a wearer's body.
  • the front and rear end fixing portions 45 and 46 are front and rear end portions of the liquid absorption structure 35 and are located on the proximal portion 50 side of the second absorption portion 42.
  • the front and rear end fixing portions 45 and 46 are positioned so as to overlap the elastic waist panel 12 in plan view.
  • the second absorbent portion 42 includes a contact surface 59 ⁇ / b> A that contacts the wearer's body in a worn state, a non-contact surface 59 ⁇ / b> B that is positioned on the opposite side, and a first absorption portion 41.
  • the position part 50 and the distal part 51 located in the longitudinal centerline P side rather than the proximal part 50 are included. Since the second absorbent portion 42 includes the absorbent body 34 and the liquid-permeable body-side liner 33 that covers the body side, the entire outer surface (the contact surface 59A and the non-contact surface 59B) is transparent. It has liquidity.
  • the side elastic body 38 is located on the contact surface 59A side of the second absorption portion 42 and is disposed between the body side liner 33 and the liquid-permeable fixing sheet 52.
  • the fixing sheet 52 is optional, and a side elastic body 38 can be disposed between the body side liner 33 and the absorbent body 34, but when the diaper 10 is manufactured, it is directly attached to the semi-rigid absorbent body 34.
  • the side elastic body 38 can be attached more stably by interposing the fixing sheet 52.
  • the second absorbent portion 42 is divided into a first section 61 located on the distal portion 51 side and a second section 62 located on the proximal portion 50 side, which divides the width dimension into two equal parts.
  • the mass per unit area of the liquid absorbing structure 35 in the first and second absorption parts 41 and 42 (excluding the bonding material for bonding the constituent members) is about 200, for example. ⁇ 600 g / m 2 , preferably 350 to 450 g / m 2 , and the total thickness of the liquid absorbing structure 35 is substantially uniform.
  • the thickness of the first absorption part 41 may be larger than that of the second absorption part 42 in order to absorb and retain a larger amount of body fluid in the first absorption part 41, and conversely, the second absorption.
  • the thickness of the part 42 may be larger than that of the first absorption part 41.
  • the second absorbent portion 42 has a relatively high rigidity, and is difficult to break even if it is sandwiched between the wearer's crotch, and can maintain a raised state.
  • the side elastic body 38 is, for example, a string-like or strand-like elastic material having a fineness of about 400 to 1200 dtex and stretched and fixed about 1.8 to 4.0 times from a contracted or relaxed state. Can be formed from The side elastic bodies 38 are evenly arranged over the entire width dimension (dimension in the lateral direction X) W1 from the proximal portion 50 to the distal portion 51 of the second absorbent portion 42, and the entire second absorbent portion 42 is disposed. Has elasticity.
  • “the side elastic bodies 38 are evenly arranged” is a dimension in design and includes a slight dimensional error that occurs in an actual manufacturing process.
  • the side elastic body 38 may be disposed at least in a part of each of the first and second sections 61 and 62 rather than the entire second absorbing section 42.
  • you may form from elastic sheets, such as a stretchable fiber nonwoven fabric arrange
  • the width dimension W1 of the second absorber 42 is, for example, about 20 to 60 mm, and the separation dimension R1 (pitch) between the side elastic bodies 38 is about 5 to 15 mm.
  • the separation dimension R1 is an appropriate size, and the fineness and the expansion ratio of the side elastic body 38 are within the above-described preferable ranges, the second absorbent portion 42 exhibits the required elongation stress. sell.
  • the extension stress of the side elastic body 38 may be substantially equal, or the extension stress can be changed by changing the extension magnification partly as necessary.
  • both side portions of the covering sheet 36 are bent inward, and the front and rear end portions thereof are on the liquid absorbing structure 35 (on the second absorbing portion 42) via the joint portion 65. It is fixed to.
  • a plurality of strings or strands extending in the longitudinal direction Y for example having a fineness of about 300 to 1000 dtex and extending about 1.6 to 3.0 times from a contracted or relaxed state
  • a flap elastic body 63 which is a shaped elastic material, is disposed. By arranging the flap elastic body 63, barrier cuffs 64 are formed that rise to the wearer's body side in the wearing state of the diaper 10 by the contraction action.
  • the liquid absorbing structure 35 is applied to the surface of the covering sheet 36 (or the leakage preventing sheet 37 when the leakage preventing sheet 37 is disposed) facing the liquid absorbing structure 35.
  • it is fixed to the cover sheet 36 (or the leak-proof sheet 37 when the leak-proof sheet 37 is arranged) via the joining regions 70 and 71 formed of a hot melt adhesive.
  • the joint regions 70 and 71 are located in the center in the lateral direction X of the liquid absorbing structure 35, and the central joint region 70 extending in the vertical direction Y from the front end edge to the rear end edge of the liquid absorbing structure 35, and the central joint region 70.
  • Side junction regions 71 that are spaced apart by a given dimension on both sides in the lateral direction X.
  • the side joint region 71 is located on the lower surface of the proximal portion 50 of the second absorption part 42, and is provided with both end joints 71A and 71B located on the front and rear end edges of the liquid absorbing structure 35, and both end joints 71A and 17B.
  • Intermediate joint 71C located between the two.
  • the intermediate joint portion 71C and both end joint portions 71A and 71B are located apart from each other in the longitudinal direction Y by a given dimension.
  • the central portion of the liquid absorption structure 35 (that is, the center of the first absorption portion 41) is stably fixed to the covering sheet 36 via the central joint region 70, while the liquid absorption structure 35
  • the absorbent chassis 11 Since the entire clothing facing surface is not fixed to the covering sheet 36 with, for example, a hot melt adhesive, the absorbent chassis 11 is entirely compared with a case where the entire clothing facing surface is fixed to the covering sheet 36 with a hot melt adhesive. Has flexibility.
  • region 71 is located in the lower surface of the proximal part 50 of the 2nd absorption part 42, when wearing the diaper 10 as above-mentioned, the 2nd absorption part 42 starts from the proximal part 50. Can get up toward the wearer's body.
  • the second absorbent portion 42 rises toward the wearer's body 17 due to the contraction force of the side elastic body 38.
  • the side elastic bodies 38 are evenly arranged over the entire width of the second absorbent portion 42, and the side elastic bodies 38 of the first area 61 and the second area 62 are used.
  • the shrinkage dimensions are substantially the same, not only the distal portion 51 but the entire abutment surface 59A abuts the wearer's thigh substantially in a planar shape. Therefore, compared with the case where only the distal portion 51 is in contact with the wearer's body 17, the contact area with the body is large, the fit is excellent, and the body fluid that has reached the body 17 can be reliably absorbed and retained. it can.
  • the second absorbent portion 42 includes a compression-absorbing liquid-absorbing core 43 therein and has a required thickness and rigidity.
  • a solid cuff formed only from a sheet member having elasticity in a conventional diaper is used. Is more stably fitted by the wearer's body 17 than the like, and in particular, there is a gap between the body 17 and the second absorption part 42 that causes leakage of bodily fluids in a state where the wearer is lying down. By being formed, it is possible to suppress excrement from side leakage from the leg opening 16.
  • the absorption chassis 11 that has absorbed bodily fluids from its proper position due to its own weight. Since the second absorbent portion 42 fits to the body in a relatively wide range, it is possible to suppress the slipping down because the second absorbing portion 42 fits the body in a relatively wide range.
  • the second absorption part 42 fits the wearer's body 17 in a planar shape, so that it can be said that the absorption efficiency is higher than when only a part of the second absorption part 42 fits and absorbs body fluid.
  • the contact surface 59A of the second absorption part 42 has liquid permeability, the body fluid that leaks out beyond the apex (distal part 51) of the second absorption part 42 through the body 17. Can be absorbed and held at the contact surface 59A of the second absorbing portion 42.
  • the entire surface including the non-contact surface 59B of the second absorbent portion 42 is liquid permeable, the excreted body fluid is first separated from the skin facing surface of the first absorbent portion 41.
  • the non-contact surface 59B of the second absorption part 42 It penetrates through the non-contact surface 59B of the second absorption part 42 and is absorbed and held by them.
  • the bodily fluid that has passed through the body and moved to the skin facing surface side of the liquid absorbing structure 35 beyond the top of the second absorbing portion 42 is absorbed and held from the contact surface 59A of the second absorbing portion 42.
  • the non-contact surface 59B of the second absorbent portion 42 may be liquid-impervious or hardly liquid-permeable. In such a case, absorption of bodily fluid from the non-contact surface 59B is suppressed, while leakage of excrement moving in the lateral direction X in the diaper 10 can be effectively suppressed.
  • the barrier cuff 64 of the covering sheet 36 rises toward the wearer's body 17 by the contraction force of the flap elastic body 63 outside the second absorbent portion 42.
  • the width dimension W1 of the second absorption part 42 is larger than the width dimension of the barrier cuff 64 in the lateral direction X.
  • the width of the second absorption part 42 from the side edge of the crotch area 15 is larger than the dimension in the lateral direction X from the side edge of the crotch region 15 to the distal portion of the covering sheet 36.
  • the second absorption part 42 is higher than the barrier cuff 64 and the barrier cuff 64 does not cover the second absorption part 42.
  • the barrier cuff 64 is preferably liquid-impervious or water-repellent, moves through the wearer's body toward the contact surface 59A of the second absorbent portion 42, and is not absorbed by the contact surface 59A. It has a function to suppress leakage. Further, the second absorbent portion 42 raised by the contracting action of the side elastic body 38 is easily sandwiched between the crotch and easily folds outward.
  • the barrier cuff 64 is positioned on the outer side, so that the second absorbent portion 42 is located on the outer side.
  • the barrier cuff 64 forms a double leak-proof wall together with the second absorption portion 42 and plays a role of assisting the rising of the second absorption portion 42. Further, as described above, in the diaper 10 in which the front and rear waist regions 13 and 14 are formed from the separate front and rear waist panels 18 and 19, the absorption chassis 11 is likely to slide down from an appropriate position by its own weight after absorbing body fluid. However, since not only the second absorption part 42 but also the barrier cuff 64 is fitted to the body, such sliding down can be prevented.
  • FIG. 9A is a diagram showing a state in which the second absorbent portion 42 is cut out from the diaper 10 of the present embodiment and the side elastic body 38 is contracted
  • FIG. 9B is a comparative example.
  • the 2 absorption part 42 it is a figure which shows the state which attached the side part elastic body 38 only to the distal part 51, cut out it from the diaper, and the side part elastic body 38 was contracted.
  • the second absorbent portion 42 cut out from the diaper 10 is arranged with the side elastic bodies 38 spaced apart equally from the proximal portion 50 to the distal portion 51.
  • the first area 61 and the second area 62 are not deformed and have a three-dimensional shape having a hollow circular cross section with the abutting surface 59A surrounding the central space (having a required height) as an inner peripheral wall as a whole.
  • the 2nd absorption part 42 becomes the aspect which stood up in the state cut out from the diaper 10 by the shrinkage
  • the vertical dimension Y in the contracted state of the first section 61 and the vertical dimension in the contracted state of the second section 62 are substantially equal.
  • the second area 62 is connected to the first absorption part 41 and the shrinkage is suppressed.
  • the amount of contraction is smaller than that of the first area 61.
  • the dimension of the first area 61 in the contracted state is larger than the dimension of the second area 62 in the contracted state of the longitudinal direction Y.
  • the former is about 315 mm and the latter is about 365 mm.
  • the contraction amount of the distal portion 51 is close. Since the contraction dimensions of the proximal portion 50 and the distal portion 51 are different from each other, the second absorbent portion 42 does not have a three-dimensional shape that forms a peripheral wall, but a flat ring shape. . As is apparent from the form of the second absorbent portion 42 in the state cut out from the diaper 10 in FIGS. 9A and 9B, the second absorbent portion 42 is deformed as shown in FIG.
  • the side elastic body 38 is disposed in at least a part of the first and second areas 61 and 62, and the side elastic body 38 is It is necessary to adjust various conditions such as the number (pitch), fineness, and expansion ratio.
  • concave grooves 80 extending in the vertical direction Y are formed in portions overlapping the folding lines 40 on both sides of the liquid absorbing structure 35. ing.
  • the liquid absorbing core 43 does not exist or its mass is smaller than other portions and is thin.
  • the concave groove 80 partially, particularly in the crotch region 15, a region where the second absorbent portion 42 is easily contracted in the longitudinal direction Y is formed, and the rising property and the surface fitting property of the second absorbent portion 42 are formed. Will improve.
  • the concave groove 80 is formed so as to overlap with the bending line 40, the second absorbing portion 42 can be easily bent inward in the manufacturing process.
  • the first absorption part 41 and the second absorption part 42 of the liquid absorption structure 35 are formed separately.
  • the first absorption part 41 is composed of a first body side liner 33A and a first absorbent body 34A covered with the first body side liner 33A
  • the second absorption part 42 includes a second body side liner 33B, It has the 2nd absorber 34B coat
  • the second absorption portion 42 is joined to the first absorption portion 41 via a fixing portion 82 and front and rear end fixing portions 45 and 46 that continuously extend in the longitudinal direction Y along both side edges.
  • the second absorption part 42 has a proximal part 50 fixed via a fixing part 82 and a distal part 51 located inside the proximal part 50 in the lateral direction X. Also in this embodiment, the contact surface 59 ⁇ / b> A of the second absorption part 42 has liquid permeability, and rises toward the wearer's body 17 by the contraction force of the side elastic body 38.
  • the front and rear waist regions 13 and 14 are not configured from separate sheet members, and the front and rear waist regions 13 and 14 and the crotch region 15 may be integrally formed.
  • the inner and outer layer sheets 21, 22, 23, and 24 may be formed from a single substantially hourglass-shaped sheet member that forms the outer shape of the diaper 10.
  • the disposable pull-on diaper 210 shown as an example of the pull-on wearing article of the second invention includes a longitudinal direction Y and a transverse direction X, and a longitudinal center line P that bisects the dimension in the transverse direction X. And a horizontal center line Q that bisects the dimension in the longitudinal direction Y, and includes an absorption chassis 211 and an annular elastic waist panel 212.
  • the diaper 210 includes a skin facing surface and a clothing facing surface on the opposite side, a front waist region 213, a rear waist region 214, a crotch region 215 located between the front and rear waist regions 213 and 214, a waist opening, and a pair of Leg opening 216.
  • the waist opening is defined by an annular elastic waist panel 212
  • the pair of leg openings 216 is defined by an absorption chassis 211 and an annular elastic waist panel 212.
  • the elastic waist panel 212 includes a front waist panel 218 located in the front waist region 213 and a rear waist panel 219 located in the rear waist region 214.
  • the front and rear waist panels 218 and 219 are spaced apart from the intermediate inner end edges 218a and 219a that intersect the front and rear end portions 230 and 231 of the absorption chassis 211 and extend in the horizontal direction X, and the intermediate inner end edges 218a and 219a in the vertical direction Y.
  • outer end edges 218b and 219b extending in the lateral direction X, the outer edges 218c and 219c extending downward from the outer ends 218b and 219b, the outer edges 218c and 219c, and the intermediate inner edges 218a and 219a are connected.
  • a substantially trapezoidal shape is formed by the concavely curved inner edges 218d and 219d.
  • Each of the outer edge 218c of the front waist panel 218 and the outer edge 219c of the rear waist panel 219 are overlapped with each other and connected by a side seam 220 extending intermittently in the longitudinal direction Y, thereby forming a waist opening and a pair of legs.
  • An opening 216 is defined.
  • the overlapping sheets are fused by embossing / debossing with heat or ultrasonic waves.
  • the front and rear waist panels 218 and 219 include inner layer sheets 221 and 222 located on the skin facing surface side, outer layer sheets 223 and 224 located on the clothing facing surface side, and a plurality of strips extending in the lateral direction X. It has front and rear waist elastic bodies 225 and 226 that are formed of a string-like or strand-like elastic material, and are attached between the inner and outer layer sheets 221 to 224 so as to be shrinkable in a stretched state via, for example, a hot melt adhesive.
  • the front waist elastic body 225 is composed of an outer front waist elastic body 225A extending in the lateral direction X along the outer edge 218b of the front waist panel 218, and a pair of inner front waist elastic bodies disposed to be opposed to each other in the lateral direction X.
  • the rear waist elastic body 226 is composed of a pair of intermediate rear waist elastic bodies 226 ⁇ / b> A and an outer rear waist elastic body 226 ⁇ / b> A that extends in the lateral direction X along the outer edge 219 b of the rear waist panel 219.
  • 226B and a pair of inner rear waist elastic bodies 226C that extend in a concave manner along the inner edge 219d and that are spaced apart from each other in the lateral direction X.
  • Various sheets constituting the front and rear waist panels 218, 219 that is, the inner and outer layer sheets 221, 222, 223, and 224 are known fiber nonwoven fabrics such as spunbond fiber nonwoven fabric or SMS (spunbond / meltblown / spunbond) fiber nonwoven fabric. It can be formed from a laminate sheet of a moisture-permeable plastic film and a nonwoven fabric. The laminated sheets are joined to each other by, for example, a hot melt adhesive or the above-mentioned heat welding means applied intermittently to at least one of the inner surfaces.
  • a hot melt adhesive or the above-mentioned heat welding means applied intermittently to at least one of the inner surfaces.
  • the front and rear waist elastic bodies 225 and 226 have, for example, a string shape or a strand shape having a fineness of about 300 to 1200 dtex and stretched and fixed about 1.8 to 3.5 times from a contracted or relaxed state. It can be formed from an elastic material.
  • the absorption chassis 211 is a vertically long, substantially rectangular shape, and is connected to the skin facing surface of the front waist panel 218 and the skin facing surface of the rear waist panel 219.
  • An end portion 231 and an intermediate portion 232 extending in the longitudinal direction Y between the front and rear end portions 230 and 231 and forming a part of the crotch region 215 are included.
  • the absorption chassis 211 includes, for example, a liquid-absorbing structure 235 having a liquid-permeable body-side liner 233 and an absorber 234 coated on the body side, and a clothing-facing surface of the absorber 234. And a hydrophobic covering sheet 236 located on the side.
  • the body side liner 233 can be formed from, for example, a spunbond fiber nonwoven fabric, an SMS fiber nonwoven fabric or the like that has been subjected to a hydrophilic treatment.
  • the covering sheet 236 is formed of a hydrophobic SMS fiber nonwoven fabric or a spunbond nonwoven fabric.
  • a leak-proof sheet 237 formed from a plastic film having moisture permeability and liquid impermeability is disposed between the covering sheet 236 and the liquid-absorbing structure 235.
  • the leak-proof sheet 237 is optional, and in the present embodiment, the joining portions 270 and 271 described later are for joining the liquid absorbing structure 235 and the leak-proof sheet 237. When not disposed, the liquid absorbing structure 235 and the covering sheet 236 are joined.
  • the absorbent body 234 includes, for example, a liquid absorbent core 243 formed of an absorbent / discrete material such as wood fluff pulp and super absorbent polymer particles (SAP), and a mass of about 10 to 10 covering the entire liquid absorbent core. And a liquid-permeable core cover sheet 244 formed of 20 g / m 2 tissue paper or the like.
  • a liquid absorbent core 243 formed of an absorbent / discrete material such as wood fluff pulp and super absorbent polymer particles (SAP), and a mass of about 10 to 10 covering the entire liquid absorbent core.
  • a liquid-permeable core cover sheet 244 formed of 20 g / m 2 tissue paper or the like.
  • the liquid absorption structure 235 is positioned on both sides of the first absorption portion (center portion) 241 and the first absorption portion 241 and extends in the vertical direction Y. It has a pair of bending lines 240 and a second absorption part (both side parts) 242 located outside the bending line 240 in the lateral direction X.
  • the both side portions 242 are fixed through a front end fixing portion 245 and a rear end fixing portion 246 that are bent inward along the bending line 240 and are applied to the first absorbent portion 241, for example, coated with a hot melt adhesive. .
  • a plurality of side elastic bodies 238 are attached to the surface of the second absorbent portion 242 opposite to the surface where the front and rear end fixing portions 245 and 246 are located.
  • the side elastic body 238 is extended in the wearing state of the diaper 210 by bending both sides of the liquid absorbing structure 235 inward and fixing them through the front and rear end fixing parts 245 and 246.
  • the second absorption part 242 rises toward the wearer's body.
  • the front and rear end fixing portions 245 and 246 are located at the front and rear end portions of the liquid absorption structure 235 and on the proximal portion 250 side of the second absorption portion 242 described later.
  • the front and rear end fixing portions 245 and 246 are positioned so as to overlap the elastic waist panel 212 in the plan view of the diaper 210.
  • the “folding line 240” is a portion where a part of the liquid absorption structure 235 is bent, and in addition to the line shape being visible in the bent state, It includes the case where the shape is not bent so that it can be visually recognized when unfolded.
  • the liquid absorbing structure 235 has a pair of concave bent guide portions 248 extending in the vertical direction Y along the bent line 240.
  • the bending guide portion 248 is a concave groove formed by embossing / debossing extending in the vertical direction Y, and has a plurality of concave grooves 248A and 248B spaced apart from each other in the horizontal direction X.
  • the concave grooves 248A and 248B have a plurality of compression concave portions 249 that are intermittently arranged in the longitudinal direction Y.
  • the plurality of compression recesses 249 are arranged, so that the bending guide portion 248 is thinner and more rigid than the other portions. Since the bending guide portion 248 having a relatively high rigidity is formed along the bending line 240, when the both side portions 242 are bent toward the central portion 241, the bending guide portion 248 can be easily bent.
  • a part of the absorber 234 may be removed or only the portion of the absorber 234 having a substantially uniform thickness may be compressed and deformed.
  • the part 248 is formed by the latter method (embossing / debossing). Therefore, the bending guide portion 248 has a thickness dimension smaller than that of other portions, and is relatively high rigidity and high density by being compressed. Therefore, the bending guide part 248 can easily be a starting point of bending, and can quickly move the body fluid that has entered in the longitudinal direction Y.
  • the absorbent core 243 of the absorbent body 234 is formed from a mixture of SAP and wood fluff pulp, and the content of wood fluff pulp in the bending guide portion 248 is higher than that of other portions. Is preferred. Specifically, in this embodiment, the content of the wood fluff pulp is about 55 to 65% by mass (the SAP content is about 45 to 35% by mass) in the portion excluding the bending guide portion 248. In the bending guide portion 248, the wood fluff pulp content is preferably set to about 75 to 90% by mass (SAP content is about 25 to 10% by mass).
  • FIG. 18A is a partially enlarged view of the region surrounded by the alternate long and short dash line XVIII (a) in FIG.
  • the plurality of compression recesses 249 forming the respective concave grooves 248A and 248B are defined by both end edges 249a and 249b facing in the length direction and both side edges 249c facing in the width direction. It has a substantially rectangular shape.
  • Each compression recess 249 of the recessed grooves 248A and the compression recesses 249 of the recess grooves 248B adjacent to each other in the lateral direction X are arranged so as to be displaced from each other in the lateral direction X and the longitudinal direction Y, and do not intersect with each other in the lateral direction X
  • Each compression recess 249 includes a low compression portion 253 and a plurality of high compression portions 254 surrounded by the low compression portion 253.
  • the absorber 234 is compressed deeper (stronger) than the low compression part 253, and the thickness dimension is smaller than that of the low compression part 253, and the rigidity is higher. Density.
  • the thickness dimension (the deepest thickness dimension at which the high compression part 254 is located) D2 of the compression recess 249 of the bending guide part 248 ensures that the liquid absorbing structure 235 is bent.
  • the size is preferably about 45 to 85% of the thickness D1 of the liquid absorption structure 235.
  • the ratio is less than about 45%, the liquid absorbing structure 235 cannot be reliably bent at the bending line 240, and the second absorption is particularly caused by a change in the posture of the wearer in the wearing state.
  • the bending guide portion 248 is a concave groove that is concave on the skin-facing surface side of the absorbent body 234, but the absorbent body 234 is bent via the bending guide portion 248 to make the second absorbent portion 242 the first. As long as it can be positioned on the absorbent portion 241, it may be a concave groove that is concave on the surface of the absorbent body 234 facing the cover sheet 236. However, in the former case, it is easier to bend the first absorbent portion 241 and the second absorbent portion 242 along the folding line 240 so that the skin facing surfaces face each other, compared to the latter case, And it can be said that it is easy to induce the bodily fluid excreted to the skin facing surface side.
  • the bending guide portion 248 only needs to be positioned so as to overlap with at least a part of the bending line 240. Further, from the viewpoint of preventing side leakage, the liquid absorbing structure It suffices if they are positioned so as to overlap each other at the folding line 240 on at least one side of both sides of the body 235.
  • the second absorption part 242 is connected to the first absorption part 241, the contact surface 259 ⁇ / b> A that contacts the wearer's body in the wearing state, the non-contact surface 259 ⁇ / b> B located on the opposite side. It has the proximal part 250 and the distal part 251 located inward from the proximal part 250 (to the longitudinal center line P side). Since the second absorbent portion 242 includes the absorbent body 234 and a liquid-permeable body-side liner 233 that covers the body side, the entire outer surface (the contact surface 259A and the non-contact surface 259B) is transparent. It has liquidity.
  • the side elastic body 238 is located on the contact surface 259A side of the second absorbent portion 242, and is disposed between the body side liner 233 and the liquid-permeable fixing sheet 252.
  • the fixing sheet 252 is optional, and a side elastic body 238 can be disposed between the body side liner 233 and the absorbent body 234, but when the diaper 210 is manufactured, it is directly attached to the semi-rigid absorbent body 234. Compared to the case where the side elastic body 238 is attached to the side elastic body 238, the side elastic body 238 can be attached more stably by interposing the fixed sheet 252.
  • the second absorption part 242 is divided into a first area 261 located on the distal part 251 side and a second area 262 located on the proximal part 250 side, which bisect the width dimension.
  • the mass per unit area of the liquid absorption structure 235 in the first and second absorption parts 241 and 242 is, for example, about 200 to
  • the thickness is 600 g / m 2 , preferably 350 to 450 g / m 2 , and the thickness of the entire liquid absorbing structure 235 is substantially uniform except for the bending guide portion 248.
  • the thickness of the first absorption part 241 may be larger than that of the second absorption part 242 in order to absorb and retain a larger amount of body fluid in the first absorption part 241, and conversely, the second absorption.
  • the thickness of the part 242 may be larger than that of the first absorption part 241.
  • the second absorbent portion 242 has a relatively high rigidity, and is difficult to break even if sandwiched between the groin portion of the wearer, and can maintain a raised state.
  • the side elastic body 238 is formed of a string-like or strand-like elastic material having a fineness of about 400 to 1200 dtex and stretched and fixed about 1.8 to 4.0 times from a contracted or relaxed state. can do.
  • the side elastic bodies 238 are evenly arranged over the entire width dimension (dimension in the lateral direction X) from the proximal portion 250 to the distal portion 251 of the second absorbent portion 242, and the entire second absorbent portion 242 expands and contracts. Have sex.
  • “the side elastic bodies 238 are evenly arranged” is a dimension in design and includes a slight dimensional error generated in an actual manufacturing process.
  • the side elastic body 238 is disposed not in the entire second absorbent portion 242 but in at least a part of each of the first area 261 and the second area 262. Just do it. Further, the side elastic body 238 is not a string-like or strand-like elastic material, but is formed of an elastic sheet such as a stretchable fiber nonwoven fabric disposed in both areas across the first area 261 and the second area 262. May be.
  • the width dimension W1 of the second absorption part 242 is about 20 to 60 mm, and the separation dimension R1 (pitch) between the side elastic bodies 238 is about 5 to 15 mm. It is.
  • the entire second absorbent portion 242 needs to have a required elongation stress. If the separation dimension R1 is an appropriate size, and the fineness and expansion ratio of the side elastic body 238 are within the above-described preferable ranges, the second absorbent portion 242 exhibits the required elongation stress. Yes.
  • the extension stress of the side elastic body 238 may be substantially equal, or the extension stress can be changed by partially changing the extension magnification as necessary.
  • both side portions of the covering sheet 236 are bent inward, and front and rear end portions thereof are fixed on the liquid absorbing structure 235 (on the second absorbing portion 242) via the joint portion 265.
  • a plurality of strings extending in the longitudinal direction Y for example, having a fineness of about 300 to 1000 dtex and stretched and fixed about 1.6 to 3.0 times from a contracted or relaxed state
  • a flap elastic body 263 made of an elastic material in the form of a strand or a strand is disposed.
  • the liquid absorbing structure 235 is applied to the surface of the covering sheet 236 (or the leakage preventing sheet 237 when the leakage preventing sheet 237 is disposed) facing the liquid absorbing structure 235.
  • it is fixed to the covering sheet 236 (or the leakage preventing sheet 237 when the leakage preventing sheet 237 is disposed) via the joint portions 270 and 271 formed from a hot melt adhesive.
  • the joints 270 and 271 are located at the center in the lateral direction X of the liquid absorbing structure 235, and a central joint 270 that extends in the vertical direction Y from the front edge to the rear edge of the liquid absorbent structure 235, and the central joint 270.
  • Side joints 271 that are spaced apart by a given dimension on both sides in the lateral direction X.
  • the side joint part 271 is located on the lower surface of the proximal part 250 of the second absorption part 242, and is joined to both end joint parts 271A and 271B and the both end joint parts 271A and 217B located on the front and rear edge sides of the liquid absorbing structure 235.
  • Intermediate junction 271C located between the two.
  • the intermediate joint portion 271C and the both end joint portions 271A and 271B are spaced apart from each other in the longitudinal direction Y by a given dimension.
  • the center of the liquid absorption structure 235 (that is, the center of the first absorption part 241) is stably fixed to the covering sheet 236 via the central joint 270, while the liquid absorption structure 235 is opposed to the liquid absorption structure 235. Since the entire surface is not fixed to the covering sheet 236 with, for example, a hot melt adhesive, the absorbent chassis 211 is generally flexible as compared with the case where the entire surface is fixed to the covering sheet 236 with a hot melt adhesive. Have Moreover, since the side junction part 271 is located in the lower surface of the proximal part 250 of the 2nd absorption part 242, when wearing the diaper 210 as above-mentioned, the 2nd absorption part 242 starts from the proximal part 250. Can get up toward the wearer's body.
  • the second absorbent portion 242 rises toward the wearer's body 217 due to the contraction force of the side elastic body 238.
  • the side elastic bodies 238 are evenly arranged over the entire width of the second absorbent portion 242, and the side elastic bodies 238 of the first area 261 and the second area 262 are used.
  • the shrinkage dimensions are substantially the same, not only the distal portion 251 but also the entire abutting surface 259A of the second absorbent portion 242 abuts the wearer's thigh substantially in a planar shape. Therefore, compared with the case where only the distal portion 251 contacts the wearer's body 217, the contact area with the body 217 is large, the fit is excellent, and the body fluid that has reached the body 217 is reliably absorbed and retained. Can do.
  • the second absorption portion 242 includes a compression elastic absorber 234 inside and has a required thickness and rigidity, for example, compared to a three-dimensional cuff or the like formed only from a sheet member having elasticity in a conventional diaper, for example.
  • the wearer's body 217 is stably fitted.
  • the absorption chassis 211 that has absorbed bodily fluids is displaced from its proper position by its own weight. Since the second absorption part 242 fits the body 217 in a relatively wide range, it is possible to suppress the sliding down because the second absorption part 242 fits the body 217 in a relatively wide range.
  • the absorption efficiency is higher than when only a part of the second absorption part 242 fits and absorbs body fluid. Can be said to be expensive.
  • the contact surface 259A of the second absorption part 242 is liquid permeable, it leaks to the outside through the top of the second absorption part 242 (distal part 251) through the body 217. The discharged body fluid can be absorbed and held on the skin-facing surface (contact surface 259A) of the second absorbent portion 242.
  • the entire body including the non-contact surface 259B of the second absorption part 242 has liquid permeability, so that the excreted body fluid is in contact with the skin facing surface of the first absorption part 241 and the first surface. 2 Absorbs and is held by the non-contact surface 259B of the absorbent portion 242, and as described above, moves across the top of the second absorbent portion 242 to the skin facing surface side through the body. The body fluid thus absorbed is absorbed and held from the contact surface 259A.
  • the non-contact surface 259B of the second absorbent portion 242 may be liquid-impervious or hardly liquid-permeable as long as the required body fluid is absorbed and held by the first absorbent portion 241. In such a case, absorption of bodily fluid from the non-contact surface 259B side is suppressed, while leakage of excrement moving in the lateral direction X in the diaper 210 can be effectively suppressed.
  • the bending line 240 according to the present invention is the second absorbing portion 242.
  • the bent state is not easily released due to a change in posture during wearing, etc. It is necessary.
  • the bending guide portion 248 formed from the plurality of compression concave portions 249 extending along the bending line 240 on the skin facing surface side of the liquid absorbing structure 235 is disposed.
  • the bent state is easily maintained, and the bent state during wearing is not inadvertently released.
  • the compression recess 249 preferably has the required thickness dimension D2 and / or the suction thickness having the required thickness dimension so that the bent state can be maintained more stably.
  • the bending guide portion 248 is preferably formed by a plurality of concave grooves 248A and 248B instead of a single one. That is, in the wearing state, the second absorbent portion 242 can be flexibly swung from the state in which the second absorbent portion 242 is in contact with the first absorbent portion 241 to about 180 degrees.
  • the outer shape of the bent portion of the liquid absorbing structure 235 having the required thickness dimension D1 is not a sharp shape but a curved shape. It is preferable to bend like this.
  • the bending guide portion 248 needs to have the required width dimension.
  • the guide portion 248 is formed of a single concave groove having a relatively large width, the rigidity of the liquid absorbing structure 235 is excessively high in the portion compared to other portions, and the wearing feeling is impaired. There is a fear.
  • the bending guide portion 248 is formed of a plurality of concave grooves 248A and 248B extending in the longitudinal direction Y and spaced apart from each other in the lateral direction X. The entire bending guide portion 248 has a required width.
  • the concave grooves 248A and 248B may be two or more, and may be curved or different from each other in addition to a straight shape.
  • the concave grooves 248 ⁇ / b> A and 248 ⁇ / b> B have a discontinuous shape composed of a plurality of compression concave portions 249 arranged in the vertical direction Y. Therefore, compared with the case where the concave grooves 248A and 248B are formed from a series of grooves continuously extending in the longitudinal direction Y, the rigidity can be further reduced, and the second elastic member 238 can contract by the contraction force of the side elastic body 238. By contracting together with the absorbing portion 242, the second absorbing portion 242 can be surely raised.
  • each compression recesses 249 constituting the recess grooves 248A and 248B have substantially the same shape, and the compression recess 249 of the recess groove 248A and the compression recess 249 of the recess groove 248B are slightly different from each other in the lateral direction X. Arranged in a misaligned state. Therefore, compared to the case where the compression recesses adjacent to each other in the lateral direction X are arranged so as to coincide with each other in the lateral direction X, rigidity can be imparted evenly to the entire bent portion of the liquid absorbing structure 235. . Furthermore, since each compression recessed part 249 contains the low compression part 253 and the high compression part 254, this part does not become high rigidity locally, but can contribute to the balance of the rigidity of the whole bending part.
  • the barrier cuff 264 of the covering sheet 236 rises toward the wearer's body 217 by the contraction force of the flap elastic body 263 outside the second absorbent portion 242. Since the width dimension of the barrier cuff 264 is smaller than the width dimension W1 of the second absorption part 242, the second absorption part 242 becomes higher than the barrier cuff 264 in the state where they rise, and the barrier cuff 264 The entire absorption part 242 is not covered.
  • the width dimension in the lateral direction X from the side edge of the crotch region 215 to the side edge of the distal portion 251 of the second absorbent portion 242 is from the side edge of the crotch region 215 to the covering sheet 236. It is larger than the dimension in the lateral direction X to the distal portion.
  • the barrier cuff 264 is preferably liquid-impervious or water-repellent, moves along the wearer's body 217 toward the contact surface 259A of the second absorbent portion 242, and is absorbed by the contact surface 259A. It has a function to suppress the leakage of body fluids that did not exist.
  • the second absorption part 242 raised by the contracting action of the side elastic body 238 is easily sandwiched between the groin parts and easily bends outward.
  • the barrier cuff 264 is located on the outer side, so that the second absorption part 242 is located. Is prevented from folding outward. That is, the barrier cuff 264 forms a double leak-proof wall together with the second absorption part 242 and plays a role of assisting the rising of the second absorption part.
  • the absorption chassis 211 is likely to slide down from an appropriate position by its own weight after absorbing body fluid. Since not only the two absorption parts 242 but also the barrier cuff 264 is fitted to the body 217, the sliding can be suppressed.
  • the basic configuration of the diaper 210 according to the fifth to seventh embodiments is the same as that of the fourth embodiment, and only different points will be described below.
  • the bending guide portion 275 has a central concave groove 275A extending straight in the vertical direction Y, and both side concave grooves 275B and 275C located on both sides in the horizontal direction X. . Both side concave grooves 275B and 275C each have a shape in which both ends thereof are inclined toward the central concave groove 275A.
  • the bending guide portion 275 may be formed of a plurality of concave grooves of three or more, and the concave grooves are mutually connected. It may have a different shape.
  • a pair of slits 280 is provided at the center of the liquid absorbing structure 235 in the longitudinal direction Y so as to overlap the folding line 240 and the bending guide portion 248. Is provided. As described above, the slit 280 is partially disposed so as to overlap with the folding line 240 and the folding guide portion 248 in a plan view, so that the folding operation becomes smoother and folds are easily attached.
  • the absorber 234 is compressed to have a relatively high rigidity, but by providing the slit 280 so as to overlap with the planar view, the rigidity in the region where the bending guide portion 248 is present. Can be adjusted as appropriate.
  • a separate absorption pad (auxiliary pad) 290 having body fluid absorbability is disposed in the liquid absorption structure 235.
  • the absorbent pad 290 has a substantially rectangular shape defined by front and rear end edges 290a and 290b extending in the lateral direction X and both side edges 290c extending in the longitudinal direction Y between the front and rear end edges 290a and 290b, and is a liquid-permeable fiber.
  • a core cover sheet formed from a nonwoven fabric or tissue paper and a liquid-absorbent core encapsulated in the sheet are included.
  • the absorbent pad 290 is disposed with both side edges interposed between the first absorbent portion 241 and the second absorbent portion 242 of the liquid absorbing structure 235. Since the liquid absorption structure 235 is a non-fixed region between the front and rear end fixing parts 245 and 246 of the first absorption part 241 and the second absorption part 242 on both sides thereof, the wearer holds the absorption pad 290. In the case of arrangement, for example, the second absorbent portion 242 in the non-fixed region is lifted upward with one hand, and both side edges of the absorbent pad 290 are placed between the first absorbent portion 241 and the second absorbent portion 242.
  • the absorbent pad 290 having a predetermined width dimension can be properly arranged in the central portion of the absorbent chassis 211.
  • the position is moved appropriately in the longitudinal direction Y as a guide while contacting the inner surface of the proximal portion 250 of the second absorbent portion 242. Can be adjusted.
  • the separate absorption pad 290 can be arrange
  • the both side edge parts of the absorption pad 290 are disposed so as to be sandwiched between the first absorption part 241 and the second absorption part 242, the displacement of the absorption pad 290 is suppressed.
  • the absorbent pad 290 is fixed to the skin-facing surface of the liquid absorbing structure 235 (body side liner 233) via detachable fastening means 291 to 293 arranged on the surface facing the liquid absorbing structure 235. Is done.
  • the fixing means 291 to 293 include a hook group and a pressure-sensitive adhesive that are fixed to a receiving portion (not shown) including a loop group of mechanical fasteners arranged on the skin-facing surface of the liquid absorbing structure 235. Etc. are formed. In this way, the absorbent pad 290 is fixed to the liquid absorbing structure 235 via the fastening means 291 to 293, so that both side edges are sandwiched between the first absorbent part 241 and the second absorbent part 242.
  • the liquid absorbing structure 235 is more stably fixed.
  • the fastening means 291 to 293 may be formed of a single member or a plurality of two or more members extending continuously in the longitudinal direction Y.
  • the constituent materials constituting the diaper 210 of the second invention various known materials that are usually used in this type of field can be used without limitation, unless otherwise specified.
  • the front and rear waist regions 213 and 214 are not formed of separate sheet members, and the front and rear waist regions 213 and 214 and the crotch region 215 may be integrally formed.
  • the inner and outer layer sheets 221, 222, 223, and 224 may be formed from a single substantially hourglass-shaped sheet member that forms the outer shape of the diaper 210.
  • Liquid absorbing property disposed in the crotch area, at least in the crotch area, and the crotch area located between the front and rear waist areas, the front waist area, the rear waist area, and the front and rear waist areas
  • a wearing article including a liquid absorption structure including a core the liquid absorption structure is formed on at least a first absorbent portion located in the crotch region and the skin-facing surface on both sides of the first absorbent portion.
  • a pair of second absorbent parts positioned and extending in the longitudinal direction, wherein the second absorbent part is a contact surface that comes into contact with a wearer's body, and a proximal part that is continuous with the first absorbent part.
  • the second absorption part is divided into a first area located on the distal part side and a second area located on the proximal part side,
  • the abutment surface of the second absorption part has liquid permeability, and a side elastic body extending in the longitudinal direction is disposed in the first area and the second area.
  • the disposable wearing article according to the first invention disclosed in the above paragraph can include at least the following embodiments.
  • the embodiments can be adopted separately or in combination with each other.
  • (1) The first absorption part and the second absorption part are integrally formed, and the first absorption part is constituted by a central part of the liquid absorption structure, and the second absorption part is formed in the central part. Formed on both sides of the liquid-absorbing structure that is bent toward the skin-facing surface, and both end portions of the second absorbent portion that are separated in the longitudinal direction are interposed between a front end fixing portion and a rear end fixing portion. And fixed to the first absorption part.
  • the first area and the second area divide the width dimension of the second absorbent portion into two equal parts, and in the worn state, the vertical dimension in the contracted state of the first area. Is smaller than the longitudinal dimension in the contracted state of the second zone, while the longitudinal dimension in the contracted state of the first zone when the second absorber is separated from the first absorber. The dimension and the dimension in the longitudinal direction in the contracted state of the second area are substantially equal.
  • the liquid-absorbing structure further includes a liquid-permeable body side liner that covers at least the skin-facing surface of the first absorbent portion and the contact surface of the second absorbent portion, and the side portion. The elastic body is disposed between the body side liner and the liquid absorbent core.
  • the liquid-absorbing structure includes a covering sheet that covers a bottom surface of the liquid-absorbing core, and a bonding area for fixing the liquid-absorbing core to the covering sheet.
  • a central joint area for fixing the central part extending in the longitudinal direction of the liquid absorption structure; and a side joint area for fixing both side edges of the liquid absorption structure;
  • the intermediate joint located in the lateral direction and spaced apart by a given dimension in the lateral direction, and the front and rear positions spaced apart by a given dimension in the longitudinal direction from the intermediate joint. And an end joint.
  • It further has a liquid-impervious leak-proof sheet positioned between the covering sheet and the liquid-absorbing structure.
  • cuff elastic members Disposed on both side portions of the covering sheet are cuff elastic members extending in the longitudinal direction to have a contracting distal portion.
  • the second portion extends from a side edge of the crotch region.
  • the lateral dimension from the side edge of the crotch region to the distal part of the covering sheet is larger than the lateral dimension from the side edge of the crotch region to the distal edge of the absorbent portion.
  • the liquid-absorbing structure has a concave groove that extends in a vertical direction so as to overlap a bent portion, and the liquid-absorbing structure is compared with the other parts of the liquid-absorbing structure in the concave groove.
  • the mass per unit area of the core is small or the liquid-absorbent core is absent.
  • the second absorption portion has a three-dimensional shape with a hollow circular cross section with the contact surface as an inner peripheral wall in a state where the second elastic portion is separated from the first absorption portion and the side elastic body contracts.
  • the disclosure relating to the second invention described above can be organized into at least the following matters.
  • the liquid absorbent structure includes a liquid absorbent core, a first absorbent portion located at least in the crotch region, and a second absorbent located outside the lateral direction of the first absorbent portion.
  • the second absorbent part is bent toward the skin facing surface side of the first absorbent part, and both end parts spaced apart in the longitudinal direction are fixed to the first absorbent part,
  • the second absorbent portion is provided with a side elastic body extending in the longitudinal direction, and the liquid-absorbent core is located in the bent portion, and at least a part of the second absorbent portion is disposed in the longitudinal direction. Formed by embossing / debossing, extending in the direction Folding guide portion of Jo is located.
  • the disposable wearing article according to the second invention disclosed in the above paragraph can include at least the following embodiments.
  • the embodiments can be adopted separately or in combination with each other.
  • the bending guide portion is formed of a plurality of concave grooves arranged in a spaced apart manner in the lateral direction.
  • the bending guide portion is formed of a plurality of compression recesses that are discontinuous in the longitudinal direction and are spaced apart from each other in the longitudinal direction.
  • the compression recess has a high compression portion and a low compression portion surrounding the high compression portion, and the compression recesses of the concave grooves adjacent to each other in the lateral direction have portions that do not intersect with each other in the lateral direction.
  • the bending guide portion is recessed from the skin facing surface side of the liquid absorbing structure toward the clothing facing surface side.
  • the liquid absorbent core is composed of a mixture of superabsorbent polymer particles and wood fluff pulp, and in the region where the bending guide portion is located, the wood fluff pulp of the liquid absorbent core The content is high compared to other parts.
  • the second absorption portion is located on the skin facing surface side of the liquid absorption structure and has a contact surface that contacts the body in a worn state, and the contact surface is liquid permeable. Have. (7) In the second absorption portion, the side elastic body is located on the contact surface side.
  • the liquid absorption structure has a slit extending in the longitudinal direction, and the slit overlaps a part of the bending guide portion. (9) It further has an absorption pad that can be attached to and detached from the liquid absorption structure, and both side edges extending in the longitudinal direction of the absorption pad are not fixed between the both ends of the second absorption part. It is located between the area and the first absorption part.
  • Diapers (Pull-on wearing items) 12 Waist panel 13 Front waist area 14 Rear waist area 15 Crotch area 18 Front waist panel 19 Rear waist panel 33 Body side liner 34 Absorber 35 Liquid absorbing structure 36 Cover sheet 37 Leakproof sheet 38 Side elastic body 40 Folding line 41 1st absorption part 42 2nd absorption part 43 Liquid absorbing core 45 Front end fixing part 46 Rear end fixing part 50 Proximal part 51 of 2nd absorption part Distal part 61 of 2nd absorption part 1st area 62 2nd area 63 Flap elastic body 70 Central joint area (joint part) 71 Side joint area (joint) 71A front end joint 71B rear end joint 71C intermediate joint 80 concave groove 210 diaper (pull-on wearing article) 212 Elastic waist panel 213 Front waist region 214 Rear waist region 215 Crotch region 235 Liquid absorbing structure 238 Side elastic body 241 First absorbing portion (central portion of liquid absorbing structure) 242 2nd absorption part (both sides

Landscapes

  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Absorbent Articles And Supports Therefor (AREA)

Abstract

La présente invention vise à fournir un article jetable destiné à être porté qui peut efficacement empêcher une fuite latérale d'un fluide corporel, en résultat de l'utilisation de sections d'absorption surélevées. La présente invention concerne par conséquent une structure d'absorption de liquide (35) qui comprend : une première section d'absorption qui (41) est située au moins dans une région d'entrejambe (15) ; et une paire de secondes sections d'absorption (42) qui sont situées sur la surface orientée vers la peau de deux parties latérales de la première section d'absorption (41) et qui s'étendent dans la direction longitudinale (Y). Chacune des secondes sections d'absorption (42) comprend : une surface de contact (59A) qui entre en contact avec le corps (17) d'un utilisateur ; et une section proximale (50) et une section distale (51) qui sont continues avec la première section d'absorption (41). La seconde section d'absorption (42) est divisée en un premier segment (61) qui est situé sur le côté section distale (51) et un second segment (62) qui est situé sur le côté section proximale (50). Les surfaces de contact (59A) des secondes sections d'absorption (42) sont perméables au liquide. Les corps élastiques de sections latérales (38) qui s'étendent dans le sens longitudinal (Y) sont disposés dans le premier segment (61) et le second segment (62).
PCT/JP2015/058598 2014-06-27 2015-03-20 Article a porter Ceased WO2015198665A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2014-133407 2014-06-27
JP2014-133409 2014-06-27
JP2014133409A JP2016010516A (ja) 2014-06-27 2014-06-27 使い捨て着用物品
JP2014133407A JP2016010514A (ja) 2014-06-27 2014-06-27 使い捨て着用物品

Publications (1)

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WO2015198665A1 true WO2015198665A1 (fr) 2015-12-30

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111803280A (zh) * 2020-08-21 2020-10-23 湖南贝恩叮当猫婴童用品有限公司 一种具有防侧漏吸收体的婴儿纸尿裤
US12390376B2 (en) 2018-02-28 2025-08-19 Kimberly-Clark Worldwide, Inc. Multi-layer absorbent cores and methods of manufacture

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JPH03268753A (ja) * 1990-03-20 1991-11-29 Kao Corp 使い捨ておむつ
JP2001252302A (ja) * 2000-03-09 2001-09-18 Kao Corp 使い捨ておむつ
JP2002209940A (ja) * 2001-01-19 2002-07-30 Kao Corp 使い捨ておむつ
JP2003159276A (ja) * 2001-11-28 2003-06-03 Kao Corp 吸収体の製造方法
JP2005279082A (ja) * 2004-03-30 2005-10-13 Daio Paper Corp 吸収性物品
JP2009153735A (ja) * 2007-12-27 2009-07-16 Kao Corp 吸収性物品の個装体
JP2009233161A (ja) * 2008-03-27 2009-10-15 Uni Charm Corp 着用物品
JP2011136094A (ja) * 2009-12-28 2011-07-14 Unicharm Corp 吸収性物品
JP2013068537A (ja) * 2011-09-22 2013-04-18 Uni Charm Corp 吸収性物品に係る積層体の圧搾部の検査装置、及び検査方法
JP2013081752A (ja) * 2011-09-30 2013-05-09 Unicharm Corp 使い捨て着用物品

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Publication number Priority date Publication date Assignee Title
JPH03268753A (ja) * 1990-03-20 1991-11-29 Kao Corp 使い捨ておむつ
JP2001252302A (ja) * 2000-03-09 2001-09-18 Kao Corp 使い捨ておむつ
JP2002209940A (ja) * 2001-01-19 2002-07-30 Kao Corp 使い捨ておむつ
JP2003159276A (ja) * 2001-11-28 2003-06-03 Kao Corp 吸収体の製造方法
JP2005279082A (ja) * 2004-03-30 2005-10-13 Daio Paper Corp 吸収性物品
JP2009153735A (ja) * 2007-12-27 2009-07-16 Kao Corp 吸収性物品の個装体
JP2009233161A (ja) * 2008-03-27 2009-10-15 Uni Charm Corp 着用物品
JP2011136094A (ja) * 2009-12-28 2011-07-14 Unicharm Corp 吸収性物品
JP2013068537A (ja) * 2011-09-22 2013-04-18 Uni Charm Corp 吸収性物品に係る積層体の圧搾部の検査装置、及び検査方法
JP2013081752A (ja) * 2011-09-30 2013-05-09 Unicharm Corp 使い捨て着用物品

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12390376B2 (en) 2018-02-28 2025-08-19 Kimberly-Clark Worldwide, Inc. Multi-layer absorbent cores and methods of manufacture
CN111803280A (zh) * 2020-08-21 2020-10-23 湖南贝恩叮当猫婴童用品有限公司 一种具有防侧漏吸收体的婴儿纸尿裤

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