JP6103834B2 - Disposable wearing items - Google Patents

Disposable wearing items Download PDF

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Publication number
JP6103834B2
JP6103834B2 JP2012143516A JP2012143516A JP6103834B2 JP 6103834 B2 JP6103834 B2 JP 6103834B2 JP 2012143516 A JP2012143516 A JP 2012143516A JP 2012143516 A JP2012143516 A JP 2012143516A JP 6103834 B2 JP6103834 B2 JP 6103834B2
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Prior art keywords
elastic body
crotch panel
region
rear waist
lateral direction
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JP2012143516A
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JP2014004258A (en
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橋本　達也
達也 橋本
大坪　俊文
俊文 大坪
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Uni Charm Corp
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Uni Charm Corp
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Priority to JP2012143516A priority Critical patent/JP6103834B2/en
Priority to TW102120898A priority patent/TWI577357B/en
Priority to PCT/JP2013/003840 priority patent/WO2014002440A1/en
Priority to CN201380034381.9A priority patent/CN104427962B/en
Publication of JP2014004258A publication Critical patent/JP2014004258A/en
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Publication of JP6103834B2 publication Critical patent/JP6103834B2/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/49058—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by the modular concept of constructing the diaper
    • A61F13/4906—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by the modular concept of constructing the diaper the diaper having an outer chassis forming the diaper and an independent absorbent structure attached to the chassis
    • A61F13/49061—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by the modular concept of constructing the diaper the diaper having an outer chassis forming the diaper and an independent absorbent structure attached to the chassis the diaper having one or two waist members forming the diaper waist region and an independent absorbent structure attached to the one or two waist members forming the crotch region
    • 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 articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/496—Absorbent articles specially adapted to be worn around the waist, e.g. diapers 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
    • A61F13/45—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 articles specially adapted to be worn around the waist, e.g. diapers
    • A61F2013/49098—Other Details not otherwise provided of the absorbent articles specially adapted to be worn around the waist

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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)

Description

本発明は、使い捨て着用物品に関し、より詳しくは、クロッチパネルを前後ウエストパネルの内側に接合したパンツ型の使い捨ておむつ、使い捨てのトイレット・トレーニングパンツ、使い捨て失禁パンツ等の使い捨て着用物品に関する。   The present invention relates to a disposable wearing article, and more particularly to a disposable wearing article such as a pants-type disposable diaper having a crotch panel joined to the inside of front and rear waist panels, a disposable toilet training pant, and a disposable incontinence pant.

従来、クロッチパネルを前後ウエストパネルに接合した使い捨て着用物品は公知である。例えば、特許文献１には、クロッチ域を構成する吸収性本体の前後端領域を、前後ウエスト域を構成する環状弾性ベルトに接合したプルオンおむつが開示される。   Conventionally, disposable wearing articles in which a crotch panel is joined to front and rear waist panels are known. For example, Patent Literature 1 discloses a pull-on diaper in which front and rear end regions of an absorbent main body constituting a crotch region are joined to an annular elastic belt constituting a front and rear waist region.

特開２００８−５０８０８２号公報（ＪＰ２００８−５０８０８２Ａ）JP 2008-508082 A (JP2008-508082A)

特許文献１に開示された使い捨て着用物品によれば、吸収性本体は、液体透過性トップシートと、液体不透過性バックシートと、それらの間に配置された吸収性コアと、縦方向側縁部に沿って配置されたバリアレッグカフとを含み、これら各要素の縦方向における寸法は全て等しく、それらの前後領域が環状弾性ベルトにそれぞれ重なって接合される。環状弾性ベルトにおいて、吸収性本体が重なった領域では、通気性が低下し、蒸れやかぶれを誘発する可能性がある。   According to the disposable wearing article disclosed in Patent Document 1, the absorbent main body includes a liquid-permeable top sheet, a liquid-impermeable back sheet, an absorbent core disposed therebetween, and longitudinal side edges. And the barrier leg cuffs arranged along the section, the dimensions of these elements in the longitudinal direction are all equal, and their front and rear regions are joined to overlap with the annular elastic belt. In the annular elastic belt, in the region where the absorbent main body overlaps, the air permeability is lowered, and there is a possibility of causing stuffiness and rash.

本発明の目的は、従来の使い捨て着用物品の改良にあり、クロッチ域を構成するクロッチパネルによって、前後ウエスト域を構成する前後ウエストパネルの通気性が低下するのを抑制することができる使い捨て着用物品の提供にある。   An object of the present invention is to improve a conventional disposable wearing article, and the disposable wearing article which can suppress the air permeability of the front and rear waist panels constituting the front and rear waist areas from being lowered by the crotch panel constituting the crotch area. Is in the provision of.

本発明は、縦方向およびそれに直交する横方向を有し、肌対向面およびその反対側に位置する非肌対向面と、前後ウエスト域を画定する前後ウエストパネルと、前記前後ウエスト域の間に位置するクロッチ域を画定するクロッチパネルと、少なくとも前記クロッチパネルの前記肌対向面に配置され前記縦方向へ延びる吸収体とを含む使い捨て着用物品に関する。   The present invention has a longitudinal direction and a lateral direction perpendicular thereto, and is located between the skin facing surface and the non-skin facing surface located on the opposite side, the front and rear waist panels that define the front and rear waist regions, and the front and rear waist regions. The present invention relates to a disposable wearing article including a crotch panel that defines a crotch region that is positioned and an absorbent body that is disposed at least on the skin-facing surface of the crotch panel and extends in the longitudinal direction.

本発明に係る使い捨て着用物品は、前記前後ウエストパネルは、第３弾性体および第４弾性体が配置された内側領域を含み、前記クロッチパネルは、前記横方向へ延びる前後端縁部と、前記縦方向へ延びる両側縁部とを有し、前記前後端縁部が、前記前後ウエストパネルの前記肌対向面にそれぞれ接合され、前記クロッチパネルの前記縦方向における寸法は、前記吸収体の前記縦方向における寸法よりも小さく、前記クロッチパネルは、前記横方向中央に位置するベースシートと、前記ベースシートの両側に位置し前記吸収体の前記横方向外側へ延出するレッグ弾性化シートとを有し、前記レッグ弾性化シートは、前記横方向の内側に位置する内側弾性体と、前記横方向の外側に位置する外側弾性体と、前記内側弾性体と前記外側弾性体との間に位置する中間弾性体とを有し、前記内側弾性体の伸長応力は、前記外側弾性体及び前記中間弾性体の伸長応力よりも大きく、前記前ウエストパネルにおいて、前記内側弾性体、前記外側弾性体、および前記中間弾性体の全てに、前記横方向へ延びる前記第３弾性体が交差し、前記後ウエストパネルにおいて、前記横方向へ延びる前記第４弾性体が、前記外側弾性体および前記横方向の外側に位置する前記中間弾性体に交差する一方、前記内側弾性体および前記横方向の内側に位置する前記中間弾性体には交差しない。 In the disposable wearing article according to the present invention, the front and rear waist panels include an inner region in which a third elastic body and a fourth elastic body are disposed, the crotch panel includes front and rear end edges extending in the lateral direction, Both longitudinal edges extending in the vertical direction, the front and rear end edges are respectively joined to the skin facing surfaces of the front and rear waist panels, and the size of the crotch panel in the vertical direction is the length of the absorber. The crotch panel has a base sheet located in the center in the lateral direction and leg elasticized sheets located on both sides of the base sheet and extending outward in the lateral direction of the absorber. The leg elasticization sheet includes an inner elastic body located on the inner side in the lateral direction, an outer elastic body located on the outer side in the horizontal direction, the inner elastic body, and the outer elastic body. And an intermediate elastic member which is located, tensile stress of the inner elastic member, the greater than the tensile stress of the outer elastic bodies and the intermediate elastic member, in the front waist panel, the inner elastic member, the outer elastic The third elastic body extending in the lateral direction intersects all of the body and the intermediate elastic body, and in the rear waist panel, the fourth elastic body extending in the lateral direction is the outer elastic body and the lateral elastic body. While intersecting the intermediate elastic body located outside in the direction, the inner elastic body and the intermediate elastic body located inside in the lateral direction do not intersect .

本発明に係る使い捨て着用物品は、クロッチパネルの縦方向における寸法を吸収体のそれよりも小さくして、前後ウエストパネルに重なるクロッチパネルの面積を小さくすることにしたので、前後ウエストパネルにおける通気性を確保することができる。   In the disposable wearing article according to the present invention, the size of the crotch panel in the vertical direction is made smaller than that of the absorber, and the area of the crotch panel overlapping the front and back waist panels is reduced. Can be secured.

本発明に係る使い捨て着用物品の一例として示す使い捨ておむつの斜視図。The perspective view of the disposable diaper shown as an example of the disposable wearing article which concerns on this invention. 各弾性体の最大伸長時まで縦方向および横方向に伸展したおむつの一部破断展開平面図。The partially broken expansion | deployment top view of the diaper extended to the vertical direction and the horizontal direction until the time of the maximum expansion | extension of each elastic body. おむつの分解斜視図。The exploded perspective view of a diaper. 図２のＩＶ−ＩＶ線断面図。IV-IV sectional view taken on the line of FIG. 図２のＶ−Ｖ線断面の拡大図。The enlarged view of the VV line cross section of FIG. 図５と同様の図であって、着用時における説明図。It is a figure similar to FIG. 5, Comprising: Explanatory drawing at the time of wear. 図２のＶＩＩ−ＶＩＩ線断面の拡大図。The enlarged view of the VII-VII line cross section of FIG. 図７と同様の図であって、着用時における説明図。It is a figure similar to FIG. 7, Comprising: Explanatory drawing at the time of wear.

図１を参照すると、本発明に係る使い捨て着用物品の一例である使い捨ておむつ１は、縦方向Ｙおよび横方向Ｘとを有し、肌対向面およびその反対側に位置する非肌対向面と、前ウエスト域１２および後ウエスト域１３と、前後ウエスト域１２，１３間に位置するクロッチ域１４と、前後ウエスト域１２，１３を画定する弾性の前後ウエストパネル２０，３０と、クロッチ域１４を画定し前後ウエストパネル２０，３０の肌対向面側に取り付けられたクロッチパネル４０と、クロッチパネル４０の内側に配置され縦方向Ｙへ延びる吸収体５０とを含む。   Referring to FIG. 1, a disposable diaper 1 which is an example of a disposable wearing article according to the present invention has a longitudinal direction Y and a lateral direction X, and a skin facing surface and a non-skin facing surface located on the opposite side thereof, The front waist region 12 and the rear waist region 13, the crotch region 14 positioned between the front and rear waist regions 12, 13, the elastic front and rear waist panels 20 and 30 that define the front and rear waist regions 12 and 13, and the crotch region 14 are defined. The crotch panel 40 attached to the skin facing surface side of the front and rear waist panels 20 and 30 and the absorbent body 50 arranged inside the crotch panel 40 and extending in the vertical direction Y are included.

前後ウエストパネル２０，３０は、それぞれ内端縁２０Ａ，３０Ａと、外端縁２０Ｂ，３０Ｂと、両側縁２０Ｃ，３０Ｃとによって画定される。両側縁２０Ｃおよび３０Ｃが、互いに重ね合わされて、縦方向Ｙへ断続的に並ぶシーム部１５において公知の手段、例えば、熱エンボス／デボス加工、ソニック加工などによる熱溶着手段によって連結され、環状の弾性ウエストパネルを形成するとともに、ウエスト開口１６と一対のレッグ開口１７とが画定される。   The front and rear waist panels 20, 30 are defined by inner end edges 20A, 30A, outer end edges 20B, 30B, and both side edges 20C, 30C, respectively. Both side edges 20C and 30C are overlapped with each other and connected by a known means such as heat embossing / debossing, sonic processing or the like in the seam portion 15 that is intermittently arranged in the longitudinal direction Y, and has an annular elasticity. A waist panel is formed and a waist opening 16 and a pair of leg openings 17 are defined.

図２〜４を参照すると、おむつ１は、横方向Ｘの寸法を二等分する仮想縦中心線２−２と、縦方向Ｙの寸法を二等分する仮想横中心線３−３とを有し、仮想縦中心線２−２にほぼ対称である。前後ウエストパネル２０，３０は、それぞれ、肌対向面側に位置する内層シート２１，３１と、非肌対向面側に位置する外層シート２２，３２とを有する。外層シート２２，３２は内層シート２１，３１よりも縦方向Ｙの幅寸法が大きく、内層シート２１，３１の内外端縁部からさらに縦方向Ｙの外側にそれぞれ延出する。内層シート２１，３１と外層シート２２，３２とは、少なくとも一方の内面に塗布されたホットメルト接着剤または公知の熱溶着手段によって接着される。   2 to 4, the diaper 1 includes a virtual vertical center line 2-2 that bisects the dimension in the horizontal direction X and a virtual horizontal center line 3-3 that bisects the dimension in the vertical direction Y. And is substantially symmetric with respect to the virtual longitudinal center line 2-2. The front and rear waist panels 20 and 30 respectively have inner layer sheets 21 and 31 located on the skin facing surface side and outer layer sheets 22 and 32 located on the non-skin facing surface side. The outer layer sheets 22 and 32 have a larger width dimension in the longitudinal direction Y than the inner layer sheets 21 and 31, and extend further from the inner and outer end edges of the inner layer sheets 21 and 31 to the outside in the longitudinal direction Y, respectively. The inner layer sheets 21 and 31 and the outer layer sheets 22 and 32 are bonded to each other by a hot melt adhesive applied to at least one inner surface or a known heat welding means.

外層シート２２，３２には、質量約１０〜３０ｇ／ｍ２のＳＭＳ（スパンボンド・メルトブローン・スパンボンド）繊維不織布、スパンボンド繊維不織布、エアスルー繊維不織布、プラスチックシート、または、前記いずれかの繊維不織布とプラスチックシートとのラミネートシートなどを用いることができる。 For the outer layer sheets 22 and 32, an SMS (spunbond / meltblown / spunbond) fiber nonwoven fabric, a spunbond fiber nonwoven fabric, an air-through fiber nonwoven fabric, a plastic sheet, or any of the fiber nonwoven fabrics having a mass of about 10 to 30 g / m 2 A laminate sheet of a plastic sheet and the like can be used.

内層シート２１，３１には、弾性繊維不織布を用いることができ、例えば、スパンボンド繊維不織布、メルトブローン繊維不織布、ヒートロール繊維不織布、ＳＭＳ繊維不織布、エアレイド繊維不織布およびエアスルー繊維不織布など公知の弾性を有する繊維不織布を単独またはそれらを組み合わせたものから形成することができる。弾性不織布は、例えば、ポリエチレン系、ポリウレタン系等からなるエラストマー樹脂、ポリエチレン、ポリプロピレン、ポリエステル、アクリル等からなる熱可塑性樹脂などから形成することができる。内層シート２１，３１としては、非弾性繊維不織布を用いることもできる。   The inner layer sheets 21 and 31 can be made of elastic fiber nonwoven fabric, and have known elasticity such as spunbond fiber nonwoven fabric, melt blown fiber nonwoven fabric, heat roll fiber nonwoven fabric, SMS fiber nonwoven fabric, airlaid fiber nonwoven fabric, and air-through fiber nonwoven fabric. The fiber nonwoven fabric can be formed from a single material or a combination thereof. The elastic nonwoven fabric can be formed from, for example, an elastomer resin made of polyethylene, polyurethane, or the like, a thermoplastic resin made of polyethylene, polypropylene, polyester, acrylic, or the like. As the inner layer sheets 21 and 31, a non-elastic fiber nonwoven fabric can also be used.

外層シート２２，３２は、内層シート２１，３１の外端縁部からさらに縦方向Ｙの外側へ延出し、縦方向Ｙ内側へ向かって折り返される折曲部位２２Ａ，３２Ａと、内層シート２１，３１の内端縁部から仮想横中心線３−３へ向かって延出する延出部位２２Ｂ，３２Ｂとを有する。折曲部位２２Ａ，３２Ａ内には、複数条のストランド状又はストリング状の第１および第２弾性体２４，３４がホットメルト接着剤を介して伸長下に収縮可能に固定される。第１および第２弾性体２４，３４は、横方向Ｘにおいてそのほぼ全域に延びる。第１および第２弾性体２４，３４を配置することによって、特に、おむつ１のウエスト開口１６を着用者に密着させることができ、ウエストからの尿等の排泄物の漏れを予防することができる。   The outer layer sheets 22 and 32 are further extended from the outer edge of the inner layer sheets 21 and 31 to the outside in the longitudinal direction Y and folded back toward the inside in the longitudinal direction Y, and the inner layer sheets 21 and 31. Extension portions 22B and 32B extending from the inner end edge portion toward the virtual lateral center line 3-3. A plurality of strand-like or string-like first and second elastic bodies 24, 34 are fixed in the bent portions 22A, 32A so as to be shrinkable under extension via a hot melt adhesive. The first and second elastic bodies 24 and 34 extend substantially in the entire region in the lateral direction X. By arrange | positioning the 1st and 2nd elastic bodies 24 and 34, especially the waist opening 16 of the diaper 1 can be closely_contact | adhered to a wearer, and leakage of excrement, such as urine from a waist, can be prevented. .

延出部位２２Ｂ，３２Ｂには、繊維不織布から形成された細長状の固定シート２５，３５が配置され、固定シート２５，３５と延出部位２２Ｂ，３２Ｂとの間において、ストランド状又はストリング状の第３および第４弾性体２６，３６がホットメルト接着剤を介して伸長下に収縮可能に固定される。第３および第４弾性体２６，３６は、仮想縦中心線２−２近傍では非連続であって、非弾性域を形成する。非弾性域を形成する方法としては、例えば、外層シート２２，３２の中央部分に接着剤を塗布せず、その両側にのみ接着剤を塗布し、接着剤を塗布した領域と塗布しない領域にわたって一連の第３および第４弾性体２６，３６を伸長下で供給して接着剤の塗布域に固定し、その状態において接着剤の非塗布領域に位置する第３および第４弾性体２６，３６を切断することによって、第３および第４弾性体２６，３６の長さ方向内端部が収縮（スナップバック）して、非弾性域を形成することができる。また、例えば、非弾性域に位置すべき第３および第４弾性体２６，３６を伸長させないことによって非弾性域を形成することもできる。また、例えば、非弾性域に位置し伸長している第３および第４弾性体２６，３６の収縮性を喪失または抑制させることで、非弾性域を形成することもできる。非弾性域を形成することによって、仮想縦中心線２−２上に配置された吸収体５０に皺が生じるのを予防することができ、かつ、第３および第４弾性体２６，３６の収縮力によって、レッグ開口１７を着用者に密着させ、尿等の漏れを防止することができる。
第１〜第４弾性体には、例えば、太さ約３１０〜９４０ｄｔｅｘ、伸長倍率２．０〜３．５倍の弾性糸を用いることができる。 In the extending portions 22B and 32B, elongated fixing sheets 25 and 35 formed of a fiber nonwoven fabric are arranged, and between the fixing sheets 25 and 35 and the extending portions 22B and 32B, a strand shape or a string shape is provided. The third and fourth elastic bodies 26 and 36 are fixed so as to be shrinkable under extension through a hot melt adhesive. The third and fourth elastic bodies 26 and 36 are discontinuous in the vicinity of the virtual longitudinal center line 2-2 and form an inelastic region. As a method for forming the non-elastic region, for example, the adhesive is not applied to the central portion of the outer layer sheets 22 and 32, but the adhesive is applied only on both sides thereof, and the region is continuously applied over the region where the adhesive is applied and the region where the adhesive is not applied. The third and fourth elastic bodies 26 and 36 are supplied under extension and fixed to the adhesive application area, and in this state, the third and fourth elastic bodies 26 and 36 located in the adhesive non-application area are provided. By cutting, the inner ends in the length direction of the third and fourth elastic bodies 26 and 36 are contracted (snapback), and an inelastic region can be formed. Further, for example, the inelastic region can be formed by not extending the third and fourth elastic bodies 26 and 36 to be positioned in the inelastic region. In addition, for example, the inelastic region can be formed by losing or suppressing the contractility of the third and fourth elastic bodies 26 and 36 that are located and extended in the inelastic region. By forming the inelastic region, it is possible to prevent wrinkles from occurring in the absorbent body 50 disposed on the virtual longitudinal center line 2-2, and the contraction of the third and fourth elastic bodies 26 and 36. The leg opening 17 can be brought into close contact with the wearer by force, and leakage of urine or the like can be prevented.
As the first to fourth elastic bodies, for example, elastic yarns having a thickness of about 310 to 940 dtex and an expansion ratio of 2.0 to 3.5 times can be used.

前後ウエストパネル２０，３０は、第３および第４弾性体２６，３６が配置された内側領域６１，６２と、第１および第２弾性体２４，３４が配置された外側領域６３，６４と、これら領域の間である中間領域６５，６６とを有する。内側領域６１，６２の縦方向Ｙにおける寸法は前後ウエストパネル２０，３０のそれの約１０〜４０％であり、この実施形態では約２７．３％（約３０ｍｍ）である。   The front and rear waist panels 20 and 30 include inner regions 61 and 62 in which the third and fourth elastic bodies 26 and 36 are disposed, outer regions 63 and 64 in which the first and second elastic bodies 24 and 34 are disposed, And intermediate regions 65 and 66 between these regions. The dimension of the inner regions 61, 62 in the longitudinal direction Y is about 10-40% of that of the front and rear waist panels 20, 30, and in this embodiment is about 27.3% (about 30 mm).

内層シート２１，３１と外層シート２２，３２との間には、前後ウエスト域１２，１３の横方向Ｘの中央部において、プラスチック材料から形成されたグラフィック表示フィルム２３，３３が配置される。グラフィック表示フィルム２３，３３には、非肌対向面に外部から視認可能なグラフィック（図示せず）などが印刷される。   Between the inner layer sheets 21, 31 and the outer layer sheets 22, 32, graphic display films 23, 33 made of a plastic material are arranged in the center portion in the lateral direction X of the front and rear waist regions 12, 13. On the graphic display films 23 and 33, a graphic (not shown) that is visible from the outside is printed on the non-skin facing surface.

クロッチパネル４０は、横方向Ｘへ延びるとともに前後ウエストパネル２０，３０に重なる前後端縁部４０Ａ，４０Ｂと、縦方向Ｙへ延びる両側縁部４０Ｃとを有し、前後端縁部４０Ａ，４０Ｂは、前後ウエストパネル２０，３０の内側領域６１，６２に重なってそれぞれ接合される。したがって、クロッチパネル４０は、前後ウエストパネル２０，３０の縦方向Ｙにおける寸法の約１０〜４０％の範囲において重なる。   The crotch panel 40 has front and rear end edges 40A and 40B extending in the horizontal direction X and overlapping the front and rear waist panels 20 and 30, and both side edges 40C extending in the vertical direction Y. The front and rear end edges 40A and 40B are The front and rear waist panels 20 and 30 are joined to overlap with the inner regions 61 and 62, respectively. Therefore, the crotch panel 40 overlaps in the range of about 10 to 40% of the dimension in the longitudinal direction Y of the front and rear waist panels 20 and 30.

クロッチパネル４０は、横方向Ｘの中央部に位置するベースシート４１と、ベースシート４１の両側部に固定された一対のレッグ弾性化シート４２とを有する。前後端縁部４０Ａ，４０Ｂは、ベースシート４１およびレッグ弾性化シート４２の前後端縁部によって構成され、両側縁部４０Ｃはレッグ弾性化シート４２の外側縁部４２Ｃによって構成される。   The crotch panel 40 includes a base sheet 41 located at the center in the lateral direction X and a pair of leg elasticized sheets 42 fixed to both sides of the base sheet 41. The front and rear end edges 40A and 40B are constituted by the front and rear end edges of the base sheet 41 and the leg elasticized sheet 42, and the both side edges 40C are constituted by the outer edge 42C of the leg elasticized sheet 42.

ベースシート４１は、肌対向面側に位置する内面シート４３と、非肌対向面側に位置する外面シート４４とから構成される。内外面シート４３，４４には、各種公知の繊維不織布またはプラスチックフィルムを用いることができるが、内面シート４３は、防漏性のプラスチックフィルムから形成することが好ましく、外面シート４４は、おむつ１０の外面の一部を構成するので、プラスチックフィルムに比して肌触りの良い繊維不織布から形成することが好ましい。レッグ弾性化シート４２は、その内側縁部が内外面シート４３，４４の間に固定される。   The base sheet 41 includes an inner sheet 43 positioned on the skin facing surface side and an outer sheet 44 positioned on the non-skin facing surface side. Although various known fiber nonwoven fabrics or plastic films can be used for the inner and outer surface sheets 43 and 44, the inner surface sheet 43 is preferably formed from a leak-proof plastic film, and the outer surface sheet 44 is formed of the diaper 10. Since it constitutes a part of the outer surface, it is preferably formed from a non-woven fabric that is softer than a plastic film. The inner edge of the leg elasticized sheet 42 is fixed between the inner and outer surface sheets 43 and 44.

レッグ弾性化シート４２は、外側縁部４２Ｃにおいて横方向Ｘへ折り返された折曲部位４５を有し、折曲部位４５によって形成されたスリーブ内部に縦方向Ｙへ延びる複数条のストランド状又はストリング状の弾性体４６が固定される。弾性体４６は、太さ約３１０〜６２０ｄｔｅｘ、伸長倍率約２．０〜３．０倍の弾性糸を用いることができ、ホットメルト接着剤を介して伸長下に収縮可能に固定される。弾性体４６は、最も仮想縦中心線２−２に近接し、すなわち、横方向Ｘ内側に位置する内側弾性体４６Ａと、最も横方向Ｘ外側に位置する外側弾性体４６Ｂと、これらの間に位置する中間弾性体４６Ｃとを有する。この実施形態において、内側弾性体４６Ａおよび外側弾性体４６Ｂは各１本、中間弾性体４６Ｃとして４本の弾性糸を用いる。外側弾性体４６Ｂは、レッグ弾性化シート４２の外側縁部４２Ｃに位置し、折曲部位４５は外側弾性体４６Ｂに沿って折り曲げられる。   The leg elasticization sheet 42 has a bent portion 45 folded in the lateral direction X at the outer edge 42C, and a plurality of strands or strings extending in the longitudinal direction Y inside the sleeve formed by the bent portion 45 The elastic body 46 is fixed. As the elastic body 46, an elastic thread having a thickness of about 310 to 620 dtex and an expansion ratio of about 2.0 to 3.0 times can be used, and the elastic body 46 is fixed to be stretchable through a hot melt adhesive. The elastic body 46 is closest to the virtual longitudinal center line 2-2, that is, the inner elastic body 46A located on the inner side in the horizontal direction X, the outer elastic body 46B located on the outermost side in the horizontal direction X, and between these And an intermediate elastic body 46C. In this embodiment, one inner elastic body 46A and one outer elastic body 46B are used, and four elastic yarns are used as the intermediate elastic body 46C. The outer elastic body 46B is located on the outer edge 42C of the leg elasticized sheet 42, and the bent portion 45 is bent along the outer elastic body 46B.

内側弾性体４６Ａは、外側弾性体４６Ｂおよび中間弾性体４６Ｃよりも伸張応力が大きい。例えば、内側弾性体４６Ａとして太さ約４７０ｄｔｅｘ、伸長倍率約２．４５倍の弾性糸を用い、外側弾性体４６Ｂおよび中間弾性体４６Ｃとして太さ約３１０ｄｔｅｘ、伸長倍率約２．４５倍の弾性糸を用いることができる。   The inner elastic body 46A has a greater tensile stress than the outer elastic body 46B and the intermediate elastic body 46C. For example, an elastic thread having a thickness of about 470 dtex and an expansion ratio of about 2.45 times is used as the inner elastic body 46A, and an elastic thread having a thickness of about 310 dtex and an expansion ratio of about 2.45 times is used as the outer elastic body 46B and the intermediate elastic body 46C. Can be used.

レッグ弾性化シート４２の内側弾性体４６Ａの伸張応力が、外側弾性体４６Ｂおよび中間弾性体４６Ｃよりも大きいので、クロッチパネル４０が吸収体５０により近い位置で着用者に密着することができ、排泄物がもれるのを予防することができる。また、外側弾性体４６Ｂおよび中間弾性体４６Ｃの伸張応力を相対的に小さくしたので、レッグ弾性化シート４２が内側に入り込むのを防ぎ、かつ、レッグ弾性化シート４２を着用者の脚の付け根に密着させることができる。   Since the extension stress of the inner elastic body 46A of the leg elasticized sheet 42 is larger than that of the outer elastic body 46B and the intermediate elastic body 46C, the crotch panel 40 can be closely attached to the wearer at a position closer to the absorbent body 50 and excreted. Prevents things from leaking. Further, since the extension stresses of the outer elastic body 46B and the intermediate elastic body 46C are relatively reduced, the leg elasticized sheet 42 is prevented from entering inside, and the leg elasticized sheet 42 is used as the base of the wearer's leg. It can be adhered.

前ウエストパネル２０において、内側弾性体４６Ａ、外側弾性体４６Ｂおよび中間弾性体４６Ｃの全てに、横方向Ｘへ延びる第３弾性体２６が交差する。したがって、第３弾性体２６の収縮力によって吸収体５０が着用者の身体にフィットし、着用者の大腿部の動きによっても体液の漏れを誘発するような隙間が身体と吸収体５０との間に形成されるおそれはない。後ウエストパネル３０において、横方向Ｘへ延びる第４弾性体３６は、外側弾性体４６Ｂおよび中間弾性体４６Ｃの一部に交差し、その余の中間弾性体４６Ｃおよび内側弾性体４６Ａには交差しない。したがって、後ウエスト域１３において、その収縮力が吸収体５０に作用して体液の漏れの原因となるようなひび割れや皺を生じさせるおそれはない。   In the front waist panel 20, the third elastic body 26 extending in the lateral direction X intersects all of the inner elastic body 46A, the outer elastic body 46B, and the intermediate elastic body 46C. Therefore, the absorbent body 50 fits the wearer's body due to the contraction force of the third elastic body 26, and there is a gap between the body and the absorbent body 50 that induces fluid leakage due to the movement of the wearer's thigh. There is no risk of formation between them. In the rear waist panel 30, the fourth elastic body 36 extending in the lateral direction X intersects with part of the outer elastic body 46B and the intermediate elastic body 46C and does not intersect with the remaining intermediate elastic body 46C and inner elastic body 46A. . Therefore, in the rear waist region 13, there is no possibility that the contraction force acts on the absorbent body 50 to cause cracks or wrinkles that cause leakage of body fluid.

ここで、本発明において、弾性体４６と第３および第４弾性体２６，３６とが「交差する」とは、第３および第４弾性体２６，３６が伸縮可能な状態で固定された固定シート２５，３５と、弾性体４６が伸縮可能な状態で固定されたレッグ弾性化シート４２とが互いに接合されることによって、弾性体４６の有効伸長部分と第３および第４弾性体２６，３６の有効伸長部分とが実質的に連動する状態にあることを意味する。   Here, in the present invention, the elastic body 46 and the third and fourth elastic bodies 26 and 36 “intersect” means that the third and fourth elastic bodies 26 and 36 are fixed in a stretchable state. The sheets 25 and 35 and the leg elasticized sheet 42 fixed with the elastic body 46 being stretchable are joined to each other, whereby the effective extension portion of the elastic body 46 and the third and fourth elastic bodies 26 and 36 are joined. It means that it is in a state of being substantially interlocked with the effective extension portion.

クロッチパネル４０のベースシート４１の肌対向面には、吸液性の吸収体５０が配置される。吸収体５０は、縦長のパッド形状を有し、前後端縁部５０Ａ，５０Ｂと、両側縁部５０Ｃと、少なくともクロッチ域１４において縦方向Ｙへ延びる吸収性コア５１と、吸収性コア５１の吸収面に位置する身体側ライナ５２とを含む。前端縁部５０Ａは、ホットメルト接着剤を介して前ウエストパネル２０の内層シート２１に固定される。後端縁部５０Ｂは、ホットメルト接着剤を介して後ウエストパネル３０の内層シート３１と外層シート３２との間、より詳細には内層シート３１と固定シート３５との間に固定される。前後端縁部５０Ａ，５０Ｂの中間部はホットメルト接着剤を介してクロッチパネル４０の内面シート４３に固定される。吸収体５０の前端縁部５０Ａの近傍が内層シート２１の肌対向面に固定されることによって、着用者の肌には、伸縮弾性を有する比較的に柔軟な内層シート２１が直接触れるので、肌触りが向上する。また、後端縁部５０Ｂの近傍が内層シート３１と外層シート３２との間に固定されることから、排泄された体液が拡散してクロッチ域１４から後ウエスト域１３に位置する吸収体５０まで拡散しても、体液が直接着用者の肌に触れるのを防止することができる。   A liquid absorbent absorber 50 is disposed on the skin facing surface of the base sheet 41 of the crotch panel 40. The absorbent body 50 has a vertically long pad shape, front and rear end edges 50A and 50B, both side edges 50C, an absorbent core 51 extending in the longitudinal direction Y at least in the crotch region 14, and absorption of the absorbent core 51. And a body-side liner 52 located on the surface. The front edge portion 50A is fixed to the inner layer sheet 21 of the front waist panel 20 via a hot melt adhesive. The rear edge portion 50B is fixed between the inner layer sheet 31 and the outer layer sheet 32 of the rear waist panel 30 through the hot melt adhesive, more specifically, between the inner layer sheet 31 and the fixed sheet 35. Intermediate portions of the front and rear end edge portions 50A and 50B are fixed to the inner sheet 43 of the crotch panel 40 via a hot melt adhesive. Since the vicinity of the front end edge portion 50A of the absorbent body 50 is fixed to the skin facing surface of the inner layer sheet 21, the wearer's skin is directly touched by the relatively flexible inner layer sheet 21 having elastic elasticity. Will improve. In addition, since the vicinity of the rear edge portion 50B is fixed between the inner layer sheet 31 and the outer layer sheet 32, the excreted body fluid diffuses to the absorber 50 located in the rear waist region 13 from the crotch region 14. Even if diffused, body fluid can be prevented from directly touching the wearer's skin.

吸収性コア５１は、質量約２００〜８００ｇ／ｍ２であって、フラッフパルプと、超吸収性ポリマー粒子（ＳＡＰ）と、オプションとして含まれる熱溶着性ステープル繊維との混合から形成された芯材と、芯材を被包する液透過性の繊維不織布とから構成される。身体側ライナ５２には、質量約１０〜３０ｇ／ｍ２の透液性のスパンボンド不織布やＳＭＳ不織布等の各種公知の繊維不織布を用いることができる。 The absorbent core 51 has a mass of about 200 to 800 g / m 2 and is formed from a mixture of fluff pulp, superabsorbent polymer particles (SAP), and optionally included heat-weldable staple fibers. And a liquid-permeable non-woven fabric encapsulating the core material. As the body side liner 52, various known fiber nonwoven fabrics such as a liquid-permeable spunbond nonwoven fabric and SMS nonwoven fabric having a mass of about 10 to 30 g / m 2 can be used.

特に図２を参照すると、クロッチパネル４０の縦方向Ｙにおける寸法Ｌ１は、吸収体５０の寸法Ｌ２よりも小さく、吸収体５０の前後端縁部５０Ａ，５０Ｂは、クロッチパネル４０の前後端縁部４０Ａ，４０Ｂよりも縦方向Ｙ外側に位置する。クロッチパネル４０の縦方向Ｙにおける寸法が小さいことによって、前後ウエストパネル２０，３０に重なるクロッチパネル４０の面積が小さくなり、その分、前後ウエストパネル２０，３０の通気性を確保することができる。この実施形態では、クロッチパネル４０の縦方向における寸法Ｌ１は約２９６ｍｍ、吸収体５０の寸法Ｌ２は約３３０ｍｍである。   Referring to FIG. 2 in particular, the dimension L1 of the crotch panel 40 in the longitudinal direction Y is smaller than the dimension L2 of the absorber 50, and the front and rear end edges 50A and 50B of the absorber 50 are the front and rear end edges of the crotch panel 40. It is located on the outside in the vertical direction Y with respect to 40A and 40B. Since the dimension in the longitudinal direction Y of the crotch panel 40 is small, the area of the crotch panel 40 overlapping the front and rear waist panels 20 and 30 is reduced, and the air permeability of the front and rear waist panels 20 and 30 can be ensured accordingly. In this embodiment, the dimension L1 in the vertical direction of the crotch panel 40 is about 296 mm, and the dimension L2 of the absorber 50 is about 330 mm.

クロッチパネル４０の横方向Ｘにおける寸法Ｗ１は、吸収体５０の寸法Ｗ２よりも大きく、クロッチパネル４０の両側縁部４０Ｃは、吸収体５０の両側縁部５０Ｃよりも横方向Ｘ外側に延出する。吸収体５０の横方向Ｘ外側に延出するのは、クロッチパネル４０のレッグ弾性化シート４２であり、これらシートが柔軟に着用者に密着することができる。この実施形態において、クロッチパネル４０の横方向における寸法Ｗ１は約２１０ｍｍ、吸収体５０の寸法Ｗ２は約１１５ｍｍである。   The dimension W1 in the lateral direction X of the crotch panel 40 is larger than the dimension W2 of the absorber 50, and both side edges 40C of the crotch panel 40 extend outward in the lateral direction X from both side edges 50C of the absorber 50. . Extending outward in the lateral direction X of the absorbent body 50 is a leg elasticized sheet 42 of the crotch panel 40, which can be in close contact with the wearer. In this embodiment, the dimension W1 in the lateral direction of the crotch panel 40 is about 210 mm, and the dimension W2 of the absorber 50 is about 115 mm.

吸収体５０は、吸収性コア５１の縦方向Ｙの寸法よりも身体側ライナ５２の寸法が大きく、身体側ライナ５２の前後端縁部５２Ａ，５２Ｂが吸収性コア５１の前後端縁部５１Ａ，５１Ｂの縦方向Ｙ外側に延出する。身体側ライナの前後端縁部５２Ａ，５２Ｂが吸収体５０の前後端縁部５０Ａ，５０Ｂと一致する。吸収性コア５１の前端縁部５１Ａは、前ウエストパネル２０の中間領域６５に位置する。換言すれば、前端縁部５１Ａはクロッチパネル４０の前端縁部４０Ａよりも縦方向Ｙ外側に位置する。おむつ１の着用時において、排尿器官は仮想横中心線３−３よりも前ウエスト域１２側に位置するから、吸収性コア５１を前方側へと偏倚させることで尿を効率よく吸収し、尿がおむつ１外に漏れるのを予防することができる。吸収性コア５１の後端縁部５１Ｂは、後ウエストパネル３０の内側領域６２に位置する。換言すれば、後端縁部５１Ｂは、クロッチパネル４０の後端縁部４０Ｂよりも縦方向Ｙ内側に位置する。したがって、後端縁部５１Ｂを第４弾性体３６および弾性体４６によって、着用者の肌へと密着させることができ、特に、後ウエスト域１３からの便等の排泄物の漏れを予防することができる。   The absorbent body 50 has a dimension of the body side liner 52 larger than the dimension of the absorbent core 51 in the longitudinal direction Y, and the front and rear end edges 52A and 52B of the body side liner 52 are front and rear end edges 51A and 51A of the absorbent core 51. It extends outward in the vertical direction Y of 51B. The front and rear end edges 52A and 52B of the body side liner coincide with the front and rear end edges 50A and 50B of the absorber 50. The front edge 51 </ b> A of the absorbent core 51 is located in the intermediate region 65 of the front waist panel 20. In other words, the front end edge portion 51 </ b> A is positioned outside the front end edge portion 40 </ b> A of the crotch panel 40 in the vertical direction Y. When the diaper 1 is worn, the urinary organ is located on the front waist region 12 side of the virtual lateral center line 3-3. Therefore, the urine can be efficiently absorbed by biasing the absorbent core 51 forward. Can be prevented from leaking out of the diaper 1. The rear end edge portion 51 </ b> B of the absorbent core 51 is located in the inner region 62 of the rear waist panel 30. In other words, the rear end edge portion 51B is located on the inner side in the vertical direction Y than the rear end edge portion 40B of the crotch panel 40. Accordingly, the rear edge 51B can be brought into close contact with the wearer's skin by the fourth elastic body 36 and the elastic body 46, and in particular, leakage of excrement such as feces from the rear waist region 13 can be prevented. Can do.

前後ウエストパネル２０，３０において、クロッチパネル４０は、内側領域６１，６２にのみに重なり、中間領域６５，６６および外側領域６３，６４には重ならない。したがって、おむつ１の着用時において着用者の足がクロッチパネル４０に引っ掛かり難くすることができる。仮に、クロッチパネル４０が、中間領域６５，６６または外側領域６３，６４にまで延びている場合には、前後端縁部４０Ａ，４０Ｂまたは側縁部４０Ｃが着用者の足の指に引っ掛かりやすく、着用しにくくなる可能性がある。
また、クロッチパネル４０が内側領域６１，６２に接合されることによって、その前後端縁部４０Ａ，４０Ｂを第３および第４弾性体２６，３６の収縮力によって着用者の身体に密着させることができる。したがって、前後端縁部４０Ａ，４０Ｂが浮き上がって着用者の肌に刺激を与えるのを抑制することができる。 In the front and rear waist panels 20 and 30, the crotch panel 40 overlaps only with the inner regions 61 and 62 and does not overlap with the intermediate regions 65 and 66 and the outer regions 63 and 64. Therefore, it is possible to make it difficult for the wearer's foot to be caught on the crotch panel 40 when the diaper 1 is worn. If the crotch panel 40 extends to the intermediate regions 65 and 66 or the outer regions 63 and 64, the front and rear end edges 40A and 40B or the side edges 40C are easily caught by the wearer's toes, May be difficult to wear.
Further, by joining the crotch panel 40 to the inner regions 61 and 62, the front and rear end edges 40A and 40B can be brought into close contact with the wearer's body by the contraction force of the third and fourth elastic bodies 26 and 36. it can. Therefore, it is possible to suppress the front and rear end edge portions 40A and 40B from rising and stimulating the wearer's skin.

図５を参照すると、前ウエストパネル２０の内側領域６１では、吸収体５０の両側縁部５０Ｃ外側には、クロッチパネル４０のレッグ弾性化シート４２が存在する。図６を参照すると、おむつ１の着用時において、レッグ弾性化シート４２が弾性体４６の収縮力によって着用者の身体Ｈに密着する。したがって、吸収体５０の両側縁部５０Ｃの横方向Ｘ外側において、着用者の身体Ｈとおむつ１の肌対向面との間における空隙５３はほとんど形成されないか、小さなものである。   Referring to FIG. 5, in the inner region 61 of the front waist panel 20, the leg elasticized sheet 42 of the crotch panel 40 exists outside the both side edges 50 </ b> C of the absorbent body 50. Referring to FIG. 6, when the diaper 1 is worn, the leg elasticized sheet 42 is in close contact with the body H of the wearer due to the contraction force of the elastic body 46. Therefore, the gap 53 between the wearer's body H and the skin-facing surface of the diaper 1 is hardly formed or small outside the lateral direction X of the side edges 50C of the absorbent body 50.

図７を参照すると、前ウエストパネル２０の中間領域６５では、クロッチパネル４０が重ならないから、吸収体５０の両側縁部５０Ｃの横方向Ｘ外側には、レッグ弾性化シート４２が存在しない。図８を参照すると、おむつ１の着用時において、前ウエストパネル２０の中間領域６５では、吸収体５０両側縁部５０Ｃの横方向Ｘ外側であって、着用者の身体Ｈとおむつ１の肌対向面との間には、図６の内側領域６１に比べて大きな空隙５３が形成される。空隙５３は、吸収性コア５１が他のシート等の構成要素に比べて厚いから、身体側ライナ５２が着用者の身体Ｈに接触したときに、前ウエストパネル２０と身体Ｈとの間に形成されるものである。着用者の身体Ｈとおむつ１との間に空隙５３が形成されることによって、おむつ１内の通気性を向上させることができる。特に、空隙５３は、体液の吸収によって湿度が高くなりやすい吸収体５０の両側に形成されるので、より効率的におむつ１内の蒸れを抑制することができる。   Referring to FIG. 7, the crotch panel 40 does not overlap in the intermediate region 65 of the front waist panel 20, and therefore the leg elasticized sheet 42 does not exist outside the lateral direction X of the side edges 50 </ b> C of the absorbent body 50. Referring to FIG. 8, when the diaper 1 is worn, in the intermediate region 65 of the front waist panel 20, it is on the outer side X side of the side edges 50 </ b> C of the absorbent body 50, and the wearer's body H faces the skin of the diaper 1. A large gap 53 is formed between the surface and the inner region 61 of FIG. The gap 53 is formed between the front waist panel 20 and the body H when the body-side liner 52 contacts the wearer's body H because the absorbent core 51 is thicker than other components such as sheets. It is what is done. By forming the gap 53 between the wearer's body H and the diaper 1, the air permeability in the diaper 1 can be improved. In particular, since the gaps 53 are formed on both sides of the absorbent body 50 where the humidity tends to increase due to the absorption of body fluids, it is possible to more effectively suppress the stuffiness in the diaper 1.

この実施形態において、吸収体５０は、後ウエストパネル３０では内側領域６２にのみ延在するが、中間領域６６および外側領域６４にまで延在するようにしてもよい。その場合には、後ウエストパネル３０にも、前ウエストパネル２０の空隙５３と同様の空隙が形成される。   In this embodiment, the absorbent body 50 extends only to the inner region 62 in the rear waist panel 30, but may extend to the intermediate region 66 and the outer region 64. In that case, a gap similar to the gap 53 of the front waist panel 20 is also formed in the rear waist panel 30.

また、前後ウエストパネル２０，３０において、中間領域６５，６６の肌対向面に内層シート２１，３１がそれぞれ配置される。中間領域６５，６６にはクロッチパネル４０が重ならないから、おむつ１の着用時には、中間領域６５，６６においては、内層シート２１，３１が着用者の肌に直接接触する。すなわち、クロッチパネル４０が中間領域６５，６６に重なって着用者の肌に接触する場合に比べて、内層シート２１，３１が、より広い範囲で着用者の肌に接触する。内層シート２１，３１は、弾性繊維不織布によって構成されているから、おむつ１の前後ウエスト域１２，１３を広い範囲で着用者の肌に密着させることができるとともに、肌触りを向上させることもできる。   Further, in the front and rear waist panels 20 and 30, the inner layer sheets 21 and 31 are disposed on the skin facing surfaces of the intermediate regions 65 and 66, respectively. Since the crotch panel 40 does not overlap the intermediate regions 65 and 66, when the diaper 1 is worn, the inner layer sheets 21 and 31 are in direct contact with the wearer's skin in the intermediate regions 65 and 66. That is, compared with the case where the crotch panel 40 overlaps the intermediate regions 65 and 66 and contacts the wearer's skin, the inner layer sheets 21 and 31 contact the wearer's skin in a wider range. Since the inner layer sheets 21 and 31 are made of an elastic fiber nonwoven fabric, the front and rear waist regions 12 and 13 of the diaper 1 can be brought into close contact with the wearer's skin over a wide range, and the touch can also be improved.

使い捨ておむつ１を構成する各構成部材には、特に明記されていない限りにおいて、本明細書に記載されている材料のほかに、この種の分野において通常用いられている、各種公知の材料を制限なく用いることができる。また、本明細書および特許請求の範囲において使用されている「第１」、「第２」、「第３」及び「第４」の用語は、同様の要素、位置等を単に区別するために用いられている。   Unless otherwise specified, each constituent member constituting the disposable diaper 1 is not limited to the materials described in this specification, but is limited to various known materials that are usually used in this type of field. Can be used. In addition, the terms “first”, “second”, “third” and “fourth” used in the specification and the claims are merely used to distinguish similar elements, positions, and the like. It is used.

以上に記載したこの発明に関する開示は、少なくとも下記事項に要約することができる。
使い捨て着用物品１は、縦方向Ｙおよびそれに直交する横方向Ｘを有し、肌対向面およびその反対側に位置する非肌対向面と、前後ウエスト域１２，１３を画定する前後ウエストパネル２０，３０と、前記前後ウエスト域１２，１３の間に位置するクロッチ域１４を画定するクロッチパネル４０と、少なくとも前記クロッチパネル４０の前記肌対向面に配置され前記縦方向Ｙへ延びる吸収体５０とを含む。 The disclosure relating to the present invention described above can be summarized at least in the following matters.
The disposable wearing article 1 has a longitudinal direction Y and a transverse direction X orthogonal thereto, and a front and rear waist panel 20 that defines a skin facing surface and a non-skin facing surface located on the opposite side, and front and rear waist regions 12 and 13. 30, a crotch panel 40 that defines a crotch region 14 positioned between the front and rear waist regions 12 and 13, and an absorbent body 50 that is disposed at least on the skin facing surface of the crotch panel 40 and extends in the longitudinal direction Y. Including.

この発明は、上記使い捨て着用物品１において、以下の点を含むことを特徴とする。
前記クロッチパネル４０は、前記横方向Ｘへ延びる前後端縁部４０Ａ，４０Ｂと、前記縦方向Ｙへ延びる両側縁部４０Ｃとを有し、前記前後端縁部４０Ａ，４０Ｂが、前記前後ウエストパネル２０，３０の前記肌対向面にそれぞれ接合される。
前記クロッチパネル４０の前記縦方向Ｙにおける寸法Ｌ１は、前記吸収体５０の前記縦方向Ｙにおける寸法Ｌ２よりも小さい。 The present invention is characterized in that the disposable wearing article 1 includes the following points.
The crotch panel 40 has front and rear end edges 40A and 40B extending in the lateral direction X, and both side edges 40C extending in the vertical direction Y. The front and rear end edges 40A and 40B are the front and rear waist panels. 20 and 30 are joined to the skin facing surfaces.
A dimension L1 of the crotch panel 40 in the longitudinal direction Y is smaller than a dimension L2 of the absorber 50 in the longitudinal direction Y.

上記の発明は、少なくとも下記の実施の形態を含むことができる。
（１）前記クロッチパネル４０は、前記横方向Ｘにおける寸法Ｗ１が、前記吸収体５０の前記横方向Ｘにおける寸法Ｗ２よりも大きく、前記クロッチパネル４０の前記両側縁部４０Ｃが前記吸収体５０の横方向Ｘ外側にそれぞれ延出する。
（２）前記前後ウエストパネル２０，３０は、前記横方向Ｘへ延びる第１および第２弾性体２４，３４が伸長下で収縮可能に取り付けられた外側領域６３，６４と、前記横方向Ｘへ延びる第３および第４弾性体２６，３６が伸長下で伸縮可能に取り付けられた内側領域６１，６２と、前記内側領域６１，６２と前記外側領域６３，６４との間に位置する中間領域６５，６６とをそれぞれ有する。
前記クロッチパネル４０の前記前後端縁部４０Ａ，４０Ｂは、前記前後ウエストパネル２０，３０の前記内側領域６１，６２にそれぞれ重なって接合される。
（３）前記クロッチパネル４０は、前記横方向Ｘ中央に位置するベースシート４１と、前記ベースシート４１の両側に位置し前記吸収体５０の前記横方向Ｘ外側へ延出するレッグ弾性化シート４２とを有する。
（４）前記レッグ弾性化シート４２には、前記縦方向Ｙへ延びる弾性体４６が伸長下で収縮可能に取り付けられる。
（５）前記吸収体５０は、前記横方向Ｘへ延びる前後端縁部５１Ａ，５１Ｂおよび前記縦方向Ｙへ延びる両側縁部５１Ｃを有する吸収性コア５１と、前記吸収性コア５１の吸収面に配置された身体側ライナ５２とを含む。
前記吸収性コア５１は、その前記後端縁部５１Ｂが、前記クロッチパネル４０の前記後端縁部４０Ｂよりも前記縦方向Ｙ内側に位置する。
（６）前記吸収性コア５１は、その前記前端縁部５１Ａが、前記クロッチパネル４０の前記前端縁部４０Ａよりも前記縦方向Ｙ外側に位置する。
（７）前記前後ウエストパネル２０，３０の前記中間領域６５，６６であって、その前記肌対向面には、弾性繊維不織布によって形成された内層シート２１，３１がそれぞれ配置される。 The above invention can include at least the following embodiments.
(1) In the crotch panel 40, the dimension W1 in the lateral direction X is larger than the dimension W2 in the lateral direction X of the absorber 50, and both side edges 40C of the crotch panel 40 are Each extends outward in the lateral direction X.
(2) The front and rear waist panels 20 and 30 have outer regions 63 and 64 to which the first and second elastic bodies 24 and 34 extending in the lateral direction X are attached so as to be contractible under expansion, and in the lateral direction X. Inner regions 61 and 62 to which the third and fourth elastic bodies 26 and 36 extending are attached so as to be stretchable under extension, and an intermediate region 65 located between the inner regions 61 and 62 and the outer regions 63 and 64. , 66 respectively.
The front and rear end edges 40A and 40B of the crotch panel 40 are joined to overlap the inner regions 61 and 62 of the front and rear waist panels 20 and 30, respectively.
(3) The crotch panel 40 includes a base sheet 41 located in the center in the lateral direction X, and a leg elasticized sheet 42 located on both sides of the base sheet 41 and extending outward in the lateral direction X of the absorber 50. And have.
(4) An elastic body 46 extending in the longitudinal direction Y is attached to the leg elasticized sheet 42 so as to be contractible under extension.
(5) The absorbent body 50 has absorbent cores 51 having front and rear end edges 51A and 51B extending in the lateral direction X and both side edges 51C extending in the longitudinal direction Y, and an absorbent surface of the absorbent core 51. And a disposed body side liner 52.
The absorptive core 51 has the rear end edge portion 51B positioned on the inner side in the longitudinal direction Y than the rear end edge portion 40B of the crotch panel 40.
(6) The front end edge portion 51 </ b> A of the absorbent core 51 is positioned on the outer side in the vertical direction Y than the front end edge portion 40 </ b> A of the crotch panel 40.
(7) In the intermediate regions 65 and 66 of the front and rear waist panels 20 and 30, inner layer sheets 21 and 31 formed of an elastic fiber nonwoven fabric are disposed on the skin facing surfaces, respectively.

１ おむつ（使い捨て着用物品）
１２ 前ウエスト域
１３ 後ウエスト域
１４ クロッチ域
２０ 前ウエストパネル
２１ 内層シート
３０ 後ウエストパネル
３１ 内層シート
４０ クロッチパネル
４０Ａ 前端縁部
４０Ｂ 後端縁部
４０Ｃ 両側縁部
４１ ベースシート
４２ レッグ弾性化シート
４６ 弾性体
５０ 吸収体
５１ 吸収性コア
５２ 身体側ライナ
６１ 内側領域
６２ 内側領域
６３ 外側領域
６４ 外側領域
６５ 中間領域
６６ 中間領域
Ｘ 横方向
Ｙ 縦方向 1 Diaper (disposable wearing article)
12 front waist region 13 rear waist region 14 crotch region 20 front waist panel 21 inner layer sheet 30 rear waist panel 31 inner layer sheet 40 crotch panel 40A front end edge portion 40B rear end edge portion 40C both side edge portions 41 base sheet 42 leg elasticized sheet 46 Elastic body 50 Absorber 51 Absorbent core 52 Body side liner 61 Inner region 62 Inner region 63 Outer region 64 Outer region 65 Intermediate region 66 Intermediate region X Horizontal direction Y Vertical direction

Claims (6)

縦方向およびそれに直交する横方向を有し、肌対向面およびその反対側に位置する非肌対向面と、前後ウエスト域を画定する前後ウエストパネルと、前記前後ウエスト域の間に位置するクロッチ域を画定するクロッチパネルと、少なくとも前記クロッチパネルの前記肌対向面に配置され前記縦方向へ延びる吸収体とを含む使い捨て着用物品において、
前記前後ウエストパネルは、第３弾性体および第４弾性体が配置された内側領域を含み、
前記クロッチパネルは、前記横方向へ延びる前後端縁部と、前記縦方向へ延びる両側縁部とを有し、前記前後端縁部が、前記前後ウエストパネルの前記肌対向面にそれぞれ接合され、
前記クロッチパネルの前記縦方向における寸法は、前記吸収体の前記縦方向における寸法よりも小さく、
前記クロッチパネルは、前記横方向中央に位置するベースシートと、前記ベースシートの両側に位置し前記吸収体の前記横方向外側へ延出するレッグ弾性化シートとを有し、
前記レッグ弾性化シートは、前記横方向の内側に位置する内側弾性体と、前記横方向の外側に位置する外側弾性体と、前記内側弾性体と前記外側弾性体との間に位置する中間弾性体とを有し、
前記内側弾性体の伸長応力は、前記外側弾性体及び前記中間弾性体の伸長応力よりも大きく、
前記前ウエストパネルにおいて、前記内側弾性体、前記外側弾性体、および前記中間弾性体の全てに、前記横方向へ延びる前記第３弾性体が交差し、
前記後ウエストパネルにおいて、前記横方向へ延びる前記第４弾性体が、前記外側弾性体および前記横方向の外側に位置する前記中間弾性体に交差する一方、前記内側弾性体および前記横方向の内側に位置する前記中間弾性体には交差しないことを特徴とする使い捨て着用物品。 A crotch region located between the front and rear waist regions, and a front and rear waist panel that defines a front and rear waist region, a skin facing surface and a non-skin facing surface located on the opposite side, having a vertical direction and a transverse direction perpendicular thereto A disposable wearing article comprising: a crotch panel that defines a surface; and an absorbent body disposed at least on the skin-facing surface of the crotch panel and extending in the longitudinal direction.
The front and rear waist panels include an inner region in which a third elastic body and a fourth elastic body are disposed,
The crotch panel has front and rear end edges extending in the lateral direction and both side edges extending in the vertical direction, and the front and rear end edges are respectively joined to the skin facing surfaces of the front and rear waist panels,
The vertical dimension of the crotch panel is smaller than the vertical dimension of the absorber,
The crotch panel has a base sheet located in the center in the lateral direction, and a leg elasticized sheet located on both sides of the base sheet and extending outward in the lateral direction of the absorber,
The leg elasticizing sheet includes an inner elastic body positioned on the inner side in the lateral direction, an outer elastic body positioned on the outer side in the horizontal direction, and an intermediate elasticity positioned between the inner elastic body and the outer elastic body. Having a body,
Tensile stress of the inner elastic body is much larger than the tensile stress of the outer elastic bodies and the intermediate elastic member,
In the front waist panel, the third elastic body extending in the lateral direction intersects all of the inner elastic body, the outer elastic body, and the intermediate elastic body,
In the rear waist panel, the fourth elastic body extending in the lateral direction intersects the outer elastic body and the intermediate elastic body positioned outside in the lateral direction, while the inner elastic body and the inner side in the lateral direction. wherein the intermediate elastic member discarded have used you characterized in that it does not intersect wearing article located. 前記クロッチパネルは、前記横方向における寸法が、前記吸収体の前記横方向における寸法よりも大きく、前記クロッチパネルの前記両側縁部が前記吸収体の前記横方向外側にそれぞれ延出する請求項１記載の使い捨て着用物品。   The dimension of the said crotch panel in the said horizontal direction is larger than the dimension in the said horizontal direction of the said absorber, The said both-sides edge part of the said crotch panel each extends the said horizontal direction outside of the said absorber. The disposable wearing article as described. 前記前後ウエストパネルは、前記横方向へ延びる第１および第２弾性体を有する外側領域と、前記内側領域と、前記内側領域と前記外側領域との間に位置する中間領域とをそれぞれ有し、
前記クロッチパネルの前記前後端縁部は、前記前後ウエストパネルの前記内側領域にそれぞれ重なって接合される請求項１または２記載の使い捨て着用物品。 The front and rear waist panels, an outer region having a first and second elastic members extending in the transverse direction, a front Symbol in side regions, respectively have the intermediate region located between the inner region and the outer region And
The disposable wearing article according to claim 1 or 2, wherein the front and rear end edges of the crotch panel are joined to overlap with the inner regions of the front and rear waist panels. 前記吸収体は、前記横方向へ延びる前後端縁部および前記縦方向へ延びる両側縁部を有する吸収性コアと、前記吸収性コアの吸収面に配置された身体側ライナとを含み、
前記吸収性コアは、その前記後端縁部が、前記クロッチパネルの前記後端縁部よりも前記縦方向内側に位置する請求項１〜３のいずれかに記載の使い捨て着用物品。 The absorber includes an absorbent core having front and rear end edges extending in the lateral direction and both side edges extending in the longitudinal direction, and a body side liner disposed on an absorbent surface of the absorbent core,
The disposable absorbent article according to any one of claims 1 to 3, wherein the absorbent core has a rear end edge portion located on the inner side in the longitudinal direction than the rear end edge portion of the crotch panel. 前記吸収性コアは、その前記前端縁部が、前記クロッチパネルの前記前端縁部よりも前記縦方向外側に位置する請求項１〜４のいずれかに記載の使い捨て着用物品。   The disposable absorbent article according to any one of claims 1 to 4, wherein the absorbent core has the front end edge located on the outer side in the longitudinal direction than the front end edge of the crotch panel. 前記前後ウエストパネルの前記中間領域であって、その前記肌対向面には、弾性繊維不織布によって形成された内層シートがそれぞれ配置される請求項３に記載の使い捨て着用物品。   The disposable wearing article according to claim 3, wherein an inner layer sheet formed of an elastic fiber nonwoven fabric is disposed on the skin facing surface in the intermediate region of the front and rear waist panels.
JP2012143516A 2012-06-26 2012-06-26 Disposable wearing items Active JP6103834B2 (en)

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PCT/JP2013/003840 WO2014002440A1 (en) 2012-06-26 2013-06-20 Wearing article
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