JP4615026B2 - Absorbent articles - Google Patents

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JP4615026B2
JP4615026B2 JP2008009452A JP2008009452A JP4615026B2 JP 4615026 B2 JP4615026 B2 JP 4615026B2 JP 2008009452 A JP2008009452 A JP 2008009452A JP 2008009452 A JP2008009452 A JP 2008009452A JP 4615026 B2 JP4615026 B2 JP 4615026B2
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sheet
absorbent body
liquid
main
absorber
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JP2008136877A (en
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真由美 木村
雅仁 田中
太 寺西
美次 濱島
稔 中西
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Kao Corp
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Kao Corp
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本発明は、漏れ防止性能が高い、生理用ナプキンや失禁パッドなどの吸収性物品に関する。   The present invention relates to an absorbent article such as a sanitary napkin or an incontinence pad, which has high leakage prevention performance.

従来より、生理用ナプキンや失禁パッドなどの吸収性物品としては、液透過性の表面シート、液不透過性の防漏シート及び吸収体を具備し、実質的に縦長に形成されてなるものが広く用いられ、漏れ防止性を向上させるため、種々提案がなされている。   Conventionally, absorbent articles such as sanitary napkins and incontinence pads include a liquid-permeable surface sheet, a liquid-impermeable leak-proof sheet, and an absorbent body, and are substantially vertically formed. Various proposals have been made in order to improve the leakage prevention property.

例えば、特許文献１においては、縦長の吸収性物品の幅方向中央部に棒状の吸収拡散体を載置した生理用ナプキンが提案されている。また、特許文献２においては、表面シート上に、更に、液透過性の不織布と液不透過性の防水紙と該不織布及び該防水紙間に介在された吸収体からなる上部吸収体を配してなる生理用ナプキンが提案されている。また、特許文献３においては、吸収性物品の左右両側縁部側のそれぞれに所定幅の一対の突堤が形成されてなる吸収性物品が提案されている。
しかし、横からの液漏れや液戻りによる漏れを十分に防止できる吸収性物品は未だない。 For example, Patent Document 1 proposes a sanitary napkin in which a rod-shaped absorption diffuser is placed at the center in the width direction of a vertically long absorbent article. Further, in Patent Document 2, an upper absorbent body comprising a liquid-permeable nonwoven fabric, a liquid-impermeable waterproof paper, an absorbent body interposed between the nonwoven fabric and the waterproof paper is further disposed on the top sheet. A sanitary napkin is proposed. Moreover, in patent document 3, the absorbent article by which a pair of jetty of predetermined width is formed in each of the left-right both-sides edge side of an absorbent article is proposed.
However, there is still no absorbent article that can sufficiently prevent liquid leakage from the side and leakage due to liquid return.

特開昭５９−１２０１５４号公報JP 59-120154 A 特開平４−１６４４６号公報JP-A-4-16446 特開平１０−３３５８８号公報JP-A-10-33588

従って、本発明の目的は、横漏れ及び液戻りによる漏れを防止でき、漏れ防止性に優れた吸収性物品を提供することにある。   Accordingly, an object of the present invention is to provide an absorbent article that can prevent side leakage and leakage due to liquid return and is excellent in leakage prevention.

本発明者らは、吸収体が、主吸収体と、該主吸収体の左右両側縁部上にそれぞれ配設された一対の側部吸収体とからなり、該側部吸収体と該主吸収体との間に液不透過性シートを配してなる吸収性物品が、上記目的を達成しうることを知見した。   The inventors of the present invention have an absorbent body comprising a main absorbent body and a pair of side absorbent bodies respectively disposed on the left and right side edges of the main absorbent body, the side absorbent body and the main absorbent body. It has been found that an absorbent article in which a liquid-impermeable sheet is disposed between the body and the body can achieve the above object.

本発明は、液透過性の表面シート、液不透過性の防漏シート及び液保持性の吸収体を具備し、縦長に形成されてなる吸収性物品において、上記吸収体は、主吸収体と、該主吸収体の左右両側縁部の少なくとも上方に配設された一対の側部吸収体とからなり、該主吸収体と該側部吸収体との間には液不透過性シートが介在されていることを特徴とする吸収性物品を提供するものである。   The present invention includes a liquid-permeable surface sheet, a liquid-impermeable leak-proof sheet, and a liquid-retaining absorbent body. In the absorbent article formed in a vertically long shape, the absorbent body is a main absorbent body. And a pair of side absorbers disposed at least above the left and right side edges of the main absorbent body, and a liquid-impermeable sheet is interposed between the main absorbent body and the side absorbent body The present invention provides an absorbent article.

本発明の吸収性物品は、漏れ防止性に優れ、特に横漏れを効果的に防止することができるものである。   The absorbent article of the present invention is excellent in leakage prevention properties, and can particularly effectively prevent side leakage.

以下、本発明の吸収性物品について図面を参照して更に詳細に説明する。
ここで、図１は、本発明の吸収性物品の第１の実施形態としての生理用ナプキンを示す斜視図であり、図２は、図１のＩＩ−ＩＩ断面図である。 Hereinafter, the absorbent article of the present invention will be described in more detail with reference to the drawings.
Here, FIG. 1 is a perspective view showing a sanitary napkin as a first embodiment of the absorbent article of the present invention, and FIG. 2 is a cross-sectional view taken along the line II-II in FIG.

図１及び２に示す第１の実施形態の生理用ナプキン１は、液透過性の表面シート２、液不透過性の防漏シート４及び液保持性の吸収体３を具備し、実質的に縦長に形成されてなる。   A sanitary napkin 1 according to the first embodiment shown in FIGS. 1 and 2 includes a liquid-permeable surface sheet 2, a liquid-impermeable leak-proof sheet 4, and a liquid-retaining absorbent body 3, and substantially includes It is formed vertically.

而して、本形態の生理用ナプキン１において、吸収体３は、主吸収体３１と、該主吸収体３１の左右両側縁部の上方にそれぞれ配設された一対の側部吸収体３２とからなり、該主吸収体３１と該側部吸収体３２との間には液不透過性シートが介在されている。   Thus, in the sanitary napkin 1 of the present embodiment, the absorbent body 3 includes the main absorbent body 31 and a pair of side absorbent bodies 32 respectively disposed above the left and right side edges of the main absorbent body 31. A liquid-impermeable sheet is interposed between the main absorbent body 31 and the side absorbent body 32.

主吸収体３１は、その裏面側全面、側面及び表面側の左右両側縁部が防漏シート４により被覆されており、更に該防漏シート４で被覆された状態で主吸収体３１の表面側及び側面側が表面シート２により被覆されており、側部吸収体３２は、その外周面全面が液透過性シート９により被覆されて、表面シート２上に配設されており、側部吸収体３２と主吸収体３１との間には、液不透過性シートとして防漏シート４が介在されている。   The main absorbent body 31 is covered with the leakproof sheet 4 on the entire back surface, side surfaces, and right and left side edges of the front surface side, and further covered with the leakproof sheet 4. The side absorbent body 32 is covered with the liquid permeable sheet 9 and disposed on the top sheet 2, and the side absorbent body 32 is covered with the top sheet 2. Between the main absorbent body 31 and the main absorbent body 31, a leak-proof sheet 4 is interposed as a liquid-impermeable sheet.

また、表面シート２は、主吸収体３１の裏面側の左右両側縁部を覆うように配されており、裏面側に液不透過性の裏面シート５が配されている。裏面シート５は、その長手方向中央部における左右両側部が、幅方向外方に延出されており、左右一対のウイング部８が形成されている。
また、ナプキンの中央部分（長手方向及び幅方向における中央部分）においては、主吸収体３１上に上部吸収体３３が載置されている。上部吸収体３３の周縁部には、立体形状の溝７が形成されており、更に、該周縁部よりも外方にも楕円形状にて溝７が形成されている。 The top sheet 2 is arranged so as to cover the left and right side edges on the back side of the main absorbent 31, and the liquid-impermeable back sheet 5 is arranged on the back side. The back sheet 5 has left and right sides at the center in the longitudinal direction extending outward in the width direction, and a pair of left and right wings 8 are formed.
Further, the upper absorbent body 33 is placed on the main absorbent body 31 in the central part of the napkin (the central part in the longitudinal direction and the width direction). A three-dimensional groove 7 is formed on the peripheral edge of the upper absorbent body 33, and further, an elliptical groove 7 is formed on the outer side of the peripheral edge.

また、側部吸収体３２は、生理用ナプキンの長手方向全体に亘って配されており、それらの前後両端部において表面シート２、防漏シート４及び裏面シート５と一体にヒートシールされている。
また、各部材は、このヒートシールされている部分及び溝が形成されている部分を除いては、適宜接着剤などにより接着されている。 Moreover, the side part absorber 32 is distribute | arranged over the whole longitudinal direction of the sanitary napkin, and is heat-sealed integrally with the surface sheet 2, the leak-proof sheet 4, and the back surface sheet 5 in those front-and-rear both ends. .
Each member is appropriately bonded with an adhesive or the like except for the heat-sealed portion and the portion where the groove is formed.

裏面シート５の中央部表面及びウイング部表面には、粘着剤が塗布されてずれ止め部６が形成されている。   An adhesive is applied to the center surface and the wing surface of the back sheet 5 to form a displacement preventing portion 6.

側部吸収体３２の高さＴ１は、１〜１０mmとするのが好ましく、３〜７mmとするのが更に好ましい。また、側部吸収体３２の幅Ｗ１は、５〜２０mmとするのが好ましい。高さＴ１は、吸収体容量の点で１mm以上が好ましく、使用者の側部の装着感の点で１０mm以上が好ましい。幅Ｗ１は、側部に流れ込んだ液の吸収性の点で５mm以上が好ましく、１５mmを超えると、中央部での主吸収体への有効な吸収及び側部吸収体の吸収性の依存度の点で２０mm以下が好ましい。
側部吸収体３２の長さは、効果を損なわない範囲で適宜選択可能で、主吸収体と同等の長さでもよく、略中央で防漏壁となるに十分な最低限の長さでもよい。実効上好ましくは３０ｍｍ〜主吸収体全長と同じ長さの範囲、更に好ましくは５０ｍｍ〜主吸収体全長と同じ長さの範囲である。
また、側部吸収体３２の位置は、吸収性物品の側方側にあれば、特に制限されず、目的とする効果を発現できれば側縁部から内側よりの位置に配置してもよい。
また、主吸収体３１の高さＴ２は、吸収容量やヨレの点、また使用者の装着感の点で０．７〜１０mmとするのが更に好ましい。その幅Ｗ２は、吸収体のズレ、ヨレの点で６０mm以上とするのが好ましい。幅Ｗ２が、６０mm未満であると、吸収体のズレ、ヨレが生じた時にモレ易くなる場合があるので、上記範囲内とするのが好ましい。
液不透過性シートとしての防漏シート４は、側部吸収体３２の全幅に亘って設けられていなくてよく、主吸収体３１の側部からの液戻りを防止して、液戻りした体液を側部吸収体３２側に滲出させないように配されていればよい。 The height T1 of the side absorbent body 32 is preferably 1 to 10 mm, and more preferably 3 to 7 mm. Moreover, it is preferable that the width W1 of the side part absorber 32 shall be 5-20 mm. The height T1 is preferably 1 mm or more in terms of the capacity of the absorber, and is preferably 10 mm or more in terms of the feeling of wearing on the side of the user. The width W1 is preferably 5 mm or more in terms of the absorbability of the liquid that has flowed into the side, and if it exceeds 15 mm, the dependence of the effective absorption on the main absorber and the absorbency of the side absorber on the center portion The point is preferably 20 mm or less.
The length of the side absorbent body 32 can be appropriately selected within a range that does not impair the effect, may be the same length as the main absorbent body, or may be the minimum length sufficient to become a leak-proof wall at the approximate center. . Practically, it is preferably in the range of 30 mm to the same length as the full length of the main absorbent body, more preferably in the range of 50 mm to the full length of the main absorbent body.
Moreover, the position of the side part absorber 32 will not be restrict | limited especially if it exists in the side of an absorbent article, and if the target effect can be expressed, you may arrange | position from the side edge part to the position from the inner side.
Further, the height T2 of the main absorbent body 31 is further preferably set to 0.7 to 10 mm from the viewpoint of absorption capacity, twisting, and user wearing feeling. The width W2 is preferably set to 60 mm or more in terms of deviation and deflection of the absorber. If the width W2 is less than 60 mm, it may be easy to cause leakage when the absorber is displaced or twisted. Therefore, the width W2 is preferably within the above range.
The leak-proof sheet 4 as the liquid-impermeable sheet may not be provided over the entire width of the side absorbent body 32, and prevents the liquid from returning from the side of the main absorbent body 31, thereby returning the body fluid. May be arranged so as not to exude to the side absorber 32 side.

生理用ナプキン１を構成する表面シート２、防漏シート４、裏面シート５及び吸収体３の形成材料としては、通常、生理用ナプキンなどの吸収性物品に用いられるものであれば特に制限なく用いることができる。液透過性シート９の形成材料は、表面シートと同じものを特に制限なく用いることができる。   As a material for forming the top sheet 2, the leakproof sheet 4, the back sheet 5 and the absorbent body 3 constituting the sanitary napkin 1, any material can be used without particular limitation as long as it is usually used for absorbent articles such as sanitary napkins. be able to. As the material for forming the liquid permeable sheet 9, the same material as that of the top sheet can be used without any particular limitation.

上述の如く構成されてなる本形態の生理用ナプキン１は、その使用時においてずれ止め部６を介してショーツなどの下着に装着して使用される。
そして、上述の如く構成されており、表面を滲む等して側部に移動してくる体液を側部吸収体３２が吸収するので、横漏れを効果的に防止することができる。また、主吸収体３１と側部吸収体３２との間に液不透過性シートとしての防漏シート４が配されているので、側部において液戻りを起こさず、側部吸収体３２の吸収性能を阻害したり液戻りによる漏れが生じない。 The sanitary napkin 1 of the present embodiment configured as described above is used by being attached to an underwear such as shorts via the stopper 6 at the time of use.
And it is comprised as mentioned above, Since the side part absorber 32 absorbs the bodily fluid which moves to a side part by bleeding the surface etc., a side leak can be prevented effectively. In addition, since the leak-proof sheet 4 as a liquid-impermeable sheet is disposed between the main absorbent body 31 and the side absorbent body 32, liquid absorption does not occur in the side section, and absorption by the side absorbent body 32 is performed. It does not impede performance or leak due to liquid return.

本形態の生理用ナプキン１は、主吸収体３１上に上部吸収体３３を載置し、主吸収体３１の裏面側及び側面を防漏シート４で覆い、さらに表面シート２で表面側及び側面を覆い、左右両側縁部に液透過性シート９で被覆した側部吸収体３２を載置し、最終に裏面側に裏面シート５を貼り合わせて、粘着剤を塗布してずれ止め部６を形成することにより、製造することができる。   The sanitary napkin 1 of the present embodiment has the upper absorbent body 33 placed on the main absorbent body 31, the back surface side and the side surface of the main absorbent body 31 are covered with the leak-proof sheet 4, and the top sheet 2 further covers the front surface side and the side surface. The side absorbent body 32 covered with the liquid permeable sheet 9 is placed on both the left and right side edges, and finally the back sheet 5 is bonded to the back side, and an adhesive is applied to fix the displacement preventing part 6. It can be manufactured by forming.

以下に、図３〜５を参照して、本発明の第２及び３の実施形態について説明する。
ここで、図３は、本発明の吸収性物品の第２の実施形態としての生理用ナプキンを示す斜視図であり、図４は、図３のＩＶ−ＩＶ断面図である。図５は、本発明の吸収性物品の第３の実施形態としての生理用ナプキンを示す幅方向断面図（図２相当図）である。
尚、以下の説明においては、上述した第１の実施形態と異なる点について特に説明する。特に説明しない点については、上述した説明が適宜適用される。 Below, 2nd and 3rd embodiment of this invention is described with reference to FIGS.
Here, FIG. 3 is a perspective view showing a sanitary napkin as a second embodiment of the absorbent article of the present invention, and FIG. 4 is a sectional view taken along line IV-IV in FIG. FIG. 5 is a cross-sectional view in the width direction showing a sanitary napkin as a third embodiment of the absorbent article of the present invention (corresponding to FIG. 2).
In the following description, differences from the above-described first embodiment will be particularly described. The points described above are appropriately applied to points that are not particularly described.

図３及び４に示す本実施形態の生理用ナプキン１においては、上記主吸収体３１は、その裏面側全面、側面及び表面側の左右両側縁部が上記防漏シート４により被覆されており、上記表面シート２は、側部吸収体３２と主吸収体３１とからなる吸収体３全体の表面側及び側面を覆って配されている。
上記側部吸収体３２は、上記主吸収体３１の表面側左右両側縁部上に位置する上記防漏シート４上に配されており、上記側部吸収体３２と上記主吸収体３１との間には、上記液不透過性シートとして上記防漏シート４が介在するようになされている。 In the sanitary napkin 1 of the present embodiment shown in FIGS. 3 and 4, the main absorbent body 31 is covered with the leak-proof sheet 4 on the entire back surface, the side surfaces, and the right and left side edges on the front surface side. The top sheet 2 is disposed so as to cover the surface side and side surfaces of the entire absorbent body 3 composed of the side absorbent bodies 32 and the main absorbent body 31.
The side absorbent body 32 is disposed on the leak-proof sheet 4 located on the left and right side edges of the main absorbent body 31, and the side absorbent body 32 and the main absorbent body 31 In the meantime, the leak-proof sheet 4 is interposed as the liquid-impermeable sheet.

即ち、本実施形態においては、主吸収体３１と側部吸収体３２とが防漏シート４を介して積層されており、表面シート２は、吸収体３全体を覆っている。また、本形態においては、上部吸収体は設けられていないが、当然設けても良い。
また、左右一対の側部吸収体３２の幅方向内方に、長手方向に延びる溝７がそれぞれ設けられて、溝７により上記表面シート２と液不透過性シートとしての防漏シート４とが固着されている。これにより、主吸収体３１と側部吸収体３２とが、完全に分断された形となり、本発明の所望の効果がより向上されて奏される。
本形態の生理用ナプキンにおいても、上述した第１の実施形態の生理用ナプキンと同じ効果を奏する。 That is, in this embodiment, the main absorber 31 and the side part absorber 32 are laminated | stacked through the leak-proof sheet 4, and the surface sheet 2 has covered the absorber 3 whole. In this embodiment, the upper absorbent body is not provided, but may be provided as a matter of course.
Further, grooves 7 extending in the longitudinal direction are respectively provided in the width direction inward of the pair of left and right side absorbers 32, and the top sheet 2 and the leak-proof sheet 4 as a liquid impermeable sheet are formed by the grooves 7. It is fixed. Thereby, the main absorber 31 and the side part absorber 32 become the form parted completely, and the desired effect of this invention is improved more and is show | played.
Also in the sanitary napkin of this form, there exists the same effect as the sanitary napkin of 1st Embodiment mentioned above.

図５に示す第３の形態の生理用ナプキン１は、主吸収体３１と側部吸収体３２とが連結されている。即ち、幅広の吸収体３の全面を表面シート２で覆い、その左右両側を内方に向けて折り返して、主吸収体３１と側部吸収体３２とが形成されている。また、この折り返された部分の相対する表面シート２間に液不透過性シート４０が、配されている。
ここで、側部吸収体の幅Ｗａにおける主吸収体に連結されていない部分（液不透過性シートが配されている部分）の幅Ｗｂの割合（Ｗｂ／Ｗａ、％）は、側部吸収体の下面から上面への液戻りの点で５０％以上であるのが好ましい。
このように、本発明において、主吸収体と側部吸収体とは、別体でなくても良く、液不透過性シートにより完全に分断されていなくても良い。 The sanitary napkin 1 of the 3rd form shown in FIG. 5 has the main absorber 31 and the side part absorber 32 connected. That is, the entire surface of the wide absorbent body 3 is covered with the top sheet 2, and both the left and right sides thereof are folded inward to form the main absorbent body 31 and the side absorbent body 32. Further, a liquid-impermeable sheet 40 is disposed between the facing surface sheets 2 of the folded portion.
Here, the ratio (Wb / Wa,%) of the width Wb of the portion not connected to the main absorber (the portion where the liquid-impermeable sheet is arranged) in the width Wa of the side absorber is the side absorption. It is preferably 50% or more in terms of liquid return from the lower surface to the upper surface of the body.
Thus, in the present invention, the main absorbent body and the side part absorbent body do not have to be separated and may not be completely separated by the liquid-impermeable sheet.

尚、本発明の吸収性物品は、上述の形態に制限されず、本発明の趣旨を逸脱しない範囲で種々変更が可能である。
例えば、第１の実施形態において、防漏シートとは別の液不透過性シートを設けることもできる。また、側部吸収体は、主吸収体の側方などにも位置するように配設しても良い。
また、溝は、単なる直線状とすることもできる。 In addition, the absorbent article of this invention is not restrict | limited to the above-mentioned form, A various change is possible in the range which does not deviate from the meaning of this invention.
For example, in the first embodiment, a liquid-impermeable sheet different from the leak-proof sheet can be provided. Further, the side absorbent body may be disposed so as to be located on the side of the main absorbent body.
Also, the groove can be a simple straight line.

図１は、本発明の吸収性物品の実施形態を示す斜視図である。FIG. 1 is a perspective view showing an embodiment of an absorbent article of the present invention. 図２は、図１のＩＩ−ＩＩ断面図である。2 is a cross-sectional view taken along the line II-II in FIG. 図３は、本発明の吸収性物品の他の実施形態を示す斜視図である。FIG. 3 is a perspective view showing another embodiment of the absorbent article of the present invention. 図４は、図３のＩＶ−ＩＶ断面図である。4 is a cross-sectional view taken along the line IV-IV in FIG. 図５は、本発明の吸収性物品の第３の実施形態としての生理用ナプキンを示す幅方向断面図（図２相当図）である。FIG. 5 is a cross-sectional view in the width direction showing a sanitary napkin as a third embodiment of the absorbent article of the present invention (corresponding to FIG. 2).

符号の説明Explanation of symbols

１ 生理用ナプキン
２ 表面シート
３ 吸収体
３１ 主吸収体
３２ 側部吸収体
３３ 上部吸収体
４ 防漏シート
５ 裏面シート
６ ずれ止め部
７ 溝部 DESCRIPTION OF SYMBOLS 1 Sanitary napkin 2 Top sheet 3 Absorber 31 Main absorber 32 Side part absorber 33 Upper absorber 4 Leak-proof sheet 5 Back surface sheet 6 Slip prevention part 7 Groove part

Claims (3)

液透過性の表面シート、液不透過性の防漏シート及び液保持性の吸収体を具備し、縦長に形成されてなる吸収性物品において、
上記吸収体は、主吸収体と、該主吸収体の左右両側縁部の少なくとも上方に配設された一対の側部吸収体とからなり、該主吸収体と該側部吸収体との間には液不透過性シートが介在されており、
上記主吸収体は、その裏面側全面、側面及び表面側の左右両側縁部が上記防漏シートにより被覆されており、更に該防漏シートで被覆された状態で該主吸収体の表面側及び側面側が上記表面シートにより被覆されており、
上記側部吸収体は、その外周面全面が液透過性シートにより被覆されて、上記表面シート上に配設されており、
上記側部吸収体と上記主吸収体との間には、上記液不透過性シートとして上記防漏シートが介在されていることを特徴とする吸収性物品。 In an absorbent article comprising a liquid-permeable surface sheet, a liquid-impermeable leak-proof sheet, and a liquid-retaining absorbent, and formed vertically,
The absorber comprises a main absorber and a pair of side absorbers disposed at least above the left and right side edges of the main absorber, and between the main absorber and the side absorber. The liquid impervious sheet is interposed in
The main absorbent body has its entire back surface, side surfaces, and right and left side edges on the front surface side covered with the leakproof sheet, and in the state covered with the leakproof sheet, The side surface is covered with the above surface sheet,
The side absorbent body has its entire outer peripheral surface covered with a liquid-permeable sheet, and is disposed on the top sheet.
The above between the side absorbent body and the main absorbent body, intake Osamusei article you wherein said barrier sheet is interposed as the liquid impermeable sheet. 左右一対の側部吸収体の幅方向内方に、長手方向に延びる溝がそれぞれ設けられて、該溝により上記表面シートと上記液不透過性シートとが固着されていることを特徴とする請求項１記載の吸収性物品。 A groove extending in the longitudinal direction is provided inward in the width direction of the pair of left and right side absorbers, and the top sheet and the liquid-impermeable sheet are fixed by the groove. Item 10. An absorbent article according to Item 1 . 上記側部吸収体は、その高さが、１〜１０mmであることを特徴とする請求項１記載の吸収性物品。   The absorbent article according to claim 1, wherein the side absorbent body has a height of 1 to 10 mm.
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