JP3856990B2 - Absorbent articles - Google Patents

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Publication number
JP3856990B2
JP3856990B2 JP21433499A JP21433499A JP3856990B2 JP 3856990 B2 JP3856990 B2 JP 3856990B2 JP 21433499 A JP21433499 A JP 21433499A JP 21433499 A JP21433499 A JP 21433499A JP 3856990 B2 JP3856990 B2 JP 3856990B2
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Japan
Prior art keywords
leak
sheet
proof sheet
contact surface
absorber
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JP2001037810A (en
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宏典 河崎
耕裕 山本
浩美 滝田
美次 濱島
稔 中西
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Kao Corp
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Kao Corp
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【０００１】
【発明の属する技術分野】
本発明は、生理用ナプキン、使い捨ておむつ、失禁パッド、パンティライナー、ペット用シート等の吸収性物品に関し、より詳しくは、着装内のムレが防止され且つ吸収した液が漏れない吸収性物品に関する。
【０００２】
【従来の技術及び発明が解決しようとする課題】
吸収性物品の防漏シートを透湿化し、着用中の濡れ感、ムレ感を無くすと共に皮膚の含水膨潤を抑制して皮膚トラブルの発症を抑える手法は、生理用ナプキン、ベビー用おむつ、大人用おむつ、失禁パッド、パンティライナー等の分野で用いられている。この方法によれば水蒸気が吸収性物品の外に排出され、着装内の湿度を低下させることができるが、吸収した経血等が漏れ易くなり、特に多量の液体を吸収した場合に液漏れを生じる恐れがあった。
【０００３】
従って、本発明は、吸収した液の液漏れ防止機能と透湿機能とが両立された吸収性物品を提供することを目的とする。
【０００４】
【課題を解決するための手段】
本発明は、液透過性の表面シート、液不透過性の第１防漏シート、及び両シート間に介在された液保持性の吸収体を備えた実質的に縦長の吸収性物品において、前記第１防漏シートは、通気性を有しており、前記吸収体の長手方向の両側部に左右一対の液不透過性の第２防漏シートが配されており、前記吸収体の非肌当接面側における長手方向の少なくとも中央部には、前記第２防漏シートが存在しておらず、前記第２防漏シートは、その長手方向に沿う一方の縁部が、前記吸収体の肌当接面側において該吸収体と前記表面シートとの間に位置し、他方の縁部が、該吸収体の非肌当接面側において該吸収体と前記第１防漏シートとの間に位置するように、配されており、前記吸収体の両側部の非肌当接面側において、前記第２防漏シートと前記第１防漏シートとの間が接着剤を介して接合されている吸収性物品を提供することにより上記目的を達成したものである。
【０００５】
【発明の実施の形態】
以下本発明を、その好ましい実施形態に基づき図面を参照しながら説明する。図１及び２に示す本実施形態の生理用ナプキン１は、実質的に縦長の形状をしており、液透過性の表面シート２、液不透過性の第１防漏シート３、及び両シート間に介在された液保持性の吸収体４を備えている。
【０００６】
詳細には、吸収体４は、平面視して略矩形状の縦長形状をしており、その非肌当接面側が第１防漏シート３に当接されて該第１防漏シート３上に載置されている。表面シート２は、装着時に着用者の肌に当接される肌当接面を形成するもので、吸収体４よりも大きい外形寸法を有しており、その長手方向の左右両側縁部は、吸収体４の左右の両側部を覆って吸収体４の非肌当接面側に位置し、その長手方向の両端部は、吸収体の前後の端部４ｂ，４ｂよりも外方に延出している。そして、表面シート２及び第１防漏シート３は、吸収体４の前後の端部４ｂ，４ｂよりも延出する部分において互いにヒートシールにより接合されている。
【０００７】
吸収体４に当接される第１防漏シート３の面上には、接着剤９がスパイラル状に塗布されており、該接着剤９を介して吸収体４の非肌当接面側に第１防漏シート３が接着固定されている。第１防漏シート３の下面にはナプキン１を着用者の着衣に固定するための粘着剤（図示せず）が塗布されており、該粘着剤は剥離紙（図示せず）によって保護されている。
【０００８】
而して、第１防漏シート３は、通気性、好ましくは水蒸気透過性を有している。これにより生理用ナプキン１を装着した場合に着装内の湿度の上昇が防止され、快適な装着感が得られる。
第１防漏シート３の水蒸気透過性の程度は、着装内の湿度の上昇防止の観点から、ＪＩＳ Ｚ０２０８に従い測定された透湿度（以下、透湿度というときはこの方法により測定されたものをいう）が、好ましくは０．７ｇ／(100cm2 ・24hr）以上、より好ましくは１．０〜５．０ｇ／(100cm2 ・24hr）、特に好ましくは１．５〜３．０ｇ／(100cm2 ・24hr）である。
【０００９】
本実施形態における第１防漏シート３は、液不透過性で且つ通気性、好ましくは水蒸気透過性を有する疎水性のフィルムからなる。斯かるフィルムの好ましい例としては、疎水性の熱可塑性樹脂と、炭酸カルシウム等からなる微小な無機フィラー又は相溶性のない有機高分子等とを溶融混練してフィルムを形成し、該フィルムを一軸又は二軸延伸して得られる多孔性フィルムが挙げられる。
また、第１防漏シート３としては、吸収性物品に従来使用されている、液不透過性で且つ通気性、好ましくは水蒸気透過性を有する各種のシートを用いることができ、例えば、ポリエチレン、ポリエステル、ポリプロピレンや、ポリエチレン−ポリプロピレン複合繊維、ポリエチレン−ポリエステル複合繊維等からなる撥水性の不織布、非相溶性の熱可塑性樹脂同士、具体的にはポリエチレン、ポリエステル、ポリプロピレン、ナイロン、アクリル等から任意に組み合わされた分割型複合繊維からなる撥水性不織布、スパンボンド不織布、メルトブローン不織布からなる撥水性の多層複合不織布、又は上記のシートと該撥水性不織布との複合シート、又は上記シートとポリエチレン、ポリエステル、ポリプロピレンや、ポリエチレン−ポリプロピレン複合繊維、ポリエチレン−ポリエステル複合繊維等からなる親水性不織布との複合シート等が挙げられる。
【００１０】
一般的にずれ止め粘着剤を用いた吸収性物品は、非肌当接面側に当たる液不透過性の第１防漏シート３のフィルム強度によって、ずれ止め粘着剤により、着用者の着衣に固定し、使用後取りはずす際に、粘着剤、もしくは粘着剤と防漏シートの一部が着衣に残る場合がある。斯かる問題を防ぐ観点から、第１防漏シート３は、ＪＩＳ Ｋ７１２８（Ｂ法）に従い測定された引裂き強度が、ＭＤ方向で２０ｇ以上、ＣＤ方向で１００ｇ以上であることが好ましい。また、吸収性物品の構成としては、上記問題を防ぐ観点から、吸収体４と第１防漏シート３とを、粘着剤が塗布される部分において接着剤で接着固定し一体化することが更に好ましい。
【００１１】
また、生理用ナプキン１における吸収体４の長手方向の両側部４ａ，４ａには、該両側部４ａ，４ａそれぞれを覆うように、左右一対の液不透過性の第２防漏シート５，５が配されている。
第２防漏シート５は、帯状のシートであり、その長手方向に沿う一方の縁部５ａが、吸収体４の肌当接面側に位置し、他方の縁部５ｂが、吸収体４の非肌当接面側に位置するように配されている。そして、吸収体４の非肌当接面側における長手方向の中央部には、第２防漏シート５，５が存在していない。即ち、両第２防漏シート５，５の非肌当接面側に位置された縁部５ｂ，５ｂ同士は離間されている。また、第２防漏シート５は、吸収体４の側部４ａにおいて、該吸収体４と表面シート２との間に配されている。
【００１２】
吸収体４の非肌当接面側に存する、第２防漏シート５，５が存在しない部分の幅、即ち、第２防漏シート５，５の非肌当接面側に位置された縁部５ｂ，５ｂ同士間の幅Ｗ１（図２参照）は、生理用ナプキン１の防漏性及び透湿度を向上させる観点から、１０〜８０ｍｍであることが好ましく、特に２０〜８０ｍｍであることが好ましい。
また、両縁部５ｂ，５ｂ同士は、生理用ナプキン１の長手方向の両端部の接合部１１、即ち、表面シート２と第１防漏シート３との接合部１１においても離間されている。
【００１３】
第２防漏シート５，５の肌当接面側に位置された縁部５ａ，５ａ同士間も離間されており、液を吸収する液吸収面を確保する観点から、該両縁部５ａ，５ａ同士間の幅Ｗ２（図２参照）は、２０〜８０ｍｍ、特に３０〜８０ｍｍであることが好ましい。
また、生理用ナプキン１の防漏性及び透湿度を向上させる観点から、生理用ナプキン１の左右両側端間の幅Ｗ３（図２参照）に対して前記幅Ｗ１は、２０〜９０％であること好ましく、防漏性及び液吸収性を向上させる観点から、生理用ナプキン１の左右両側端同士間の幅Ｗ３に対して前記幅Ｗ２は、３０〜９０％であること好ましい。
【００１４】
第２防漏シート５は、吸収体４の肌当接面側において、表面シート２と接合されている。より具体的には、生理用ナプキン１の肌当接面側には、エンボス加工により、液拡散防止用の溝部６，６が形成されており、第２防漏シート５は、該溝部６，６を形成するためのエンボス加工により、表面シート２及び吸収体４と接合され、これらと一体化されている。
第２防漏シート５が、吸収体４の肌当接面側において、表面シート２と接合されているため、表面シート２を透過した液が、該表面シート２と第２防漏シート５との間を通って、生理用ナプキン１の側部から漏れることが防止される。
また、第２防漏シート５が、前記溝部６，６を形成するためのエンボス加工により、表面シート２及び吸収体４と接合一体化されているため、吸収された液が吸収体内で拡散しても、エンボス加工部で吸収体両側部への液の拡がりを抑制することが可能である。更に多量の液を吸収し、エンボス加工部よりも側部に拡がることがあっても、第２防漏シートにより生理用ナプキンの側部からの漏れを防止できる。
【００１５】
第２防漏シート５は、吸収体４の非肌当接面側において、第１防漏シート３と接合されている。より具体的には、第２防漏シート５は、吸収体４の両側部の非肌当接面側において接着剤７１を介して表面シート２に接合され、更に表面シート２が第１防漏シート３に接着剤７１を介して接合されている。即ち、第２防漏シート５は、表面シート２を介在させて第１防漏シート３と接合されている。
本ナプキン１においては、第２防漏シート５が、吸収体４の非肌当接面側において、第１防漏シートと接合されているため、吸収体４が多量の液を吸収した場合や生理用ナプキン１が大きく変形された場合等においても、吸収体４に保持された液が、生理用ナプキン１の側部から漏れることを阻止できる。
【００１６】
また、第２防漏シート５は、吸収体４の非肌当接面側の面にも接合されている。即ち、第２防漏シート５，５は、その一方の縁部５ｂ，５ｂにおいて、接着剤７２を介して吸収体４の非肌当接面側に接合されている。これにより、生理用ナプキン１の側部からの液漏れが更に効果的に防止される。
【００１７】
第２防漏シート５は、液不透過性であれば、その材質等に特に制限はなく、従来の生理用ナプキンにおいて防漏シートとして使用されている各種のシートを用いることができる。また、第２防漏シート５は、通気性を有することが好ましく、斯かる通気性シートとしては、第１防漏シート３に用い得るものとして上記した多孔性フィルム等が挙げられる。
また、吸収体４，表面シート２、接着剤７１，７２等としては、吸収性物品に従来使用されているものを特に制限なく使用することができる。
【００１８】
本実施形態の生理用ナプキン１は、従来の生理用ナプキンと同様にショーツ等の着衣に固定して使用することができる。
そして、生理用ナプキン１によれば、第１防漏シート３が通気性を有しているため、吸収体４に吸収された液から発生する水蒸気が、吸収性物品の外に排出され、着装内の湿度の上昇が防止される。これにより、濡れ感、ムレ感を無くすことができ、快適な装着感が得られる。
また、第２防漏シート５が所定の箇所に所定の態様で配されているため、吸収体４が多量の液を吸収した場合や生理用ナプキン１が大きく変形された場合等においても、吸収体４に保持された液が、生理用ナプキン１の側部から漏れることがない。
【００１９】
また、吸収体４の非肌当接面側における長手方向の中央部に、第２防漏シート５，５が存在していないため、第２防漏シート５として通気性を有しないシートを用いた場合であっても、着装内の湿度の上昇を抑制することができる。
また、両第２防漏シート５，５の両縁部５ｂ，５ｂ同士が、生理用ナプキン１の長手方向の両端部の接合部１１においても離間しているため、生理用ナプキン１の長手方向の両端部の接合部１１が柔軟であり、装着感に優れている。
尚、生理用ナプキン１においては、肌当接面における液拡散防止用の溝部６，６の内側に更に防漏溝８が形成されており、そのため、吸収した液の拡散を生理用ナプキン１の中央部にて抑制することができ、側部のみならず長手方向前後への液の拡がりを防止することができる。
【００２３】
尚、第２防漏シート５，５は、生理用ナプキンの長手方向の両端部において、その両縁部５ｂ，５ｂ同士が積層等されていても良い。また、本発明は、生理用ナプキンの他、使い捨ておむつ、失禁パッド、パンティライナー、ペット用シート等にも適用することもできる。
【００２４】
【発明の効果】
本発明によれば、吸収した液の液漏れ防止機能と透湿機能とが両立された吸収性物品が提供される。
【図面の簡単な説明】
【図１】本発明の吸収性物品の一実施形態としての生理用ナプキンを示す一部斜視図である。
【図２】図１のＡ−Ａ線断面図である。
【符号の説明】
１ 生理用ナプキン
２ 表面シート
３ 第１防漏シート
４ 吸収体
５ 第２防漏シート
６ 溝部（表面シートと第１防漏シートとの接合部）[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an absorbent article such as a sanitary napkin, a disposable diaper, an incontinence pad, a panty liner, a pet sheet, and the like, and more particularly, to an absorbent article that prevents stuffiness in wearing and does not leak absorbed liquid.
[0002]
[Prior art and problems to be solved by the invention]
Absorbent article leak-proof sheets are made moisture-permeable to eliminate the feeling of wetness and stuffiness while wearing, and to suppress the swelling of skin with moisture, to prevent the occurrence of skin troubles, sanitary napkins, baby diapers, and adults Used in fields such as diapers, incontinence pads, and panty liners. According to this method, water vapor is discharged out of the absorbent article and the humidity in the dressing can be reduced. However, the absorbed menstrual blood and the like are likely to leak, and particularly when a large amount of liquid is absorbed, liquid leakage is prevented. There was a fear.
[0003]
Therefore, an object of the present invention is to provide an absorbent article having both a function of preventing leakage of absorbed liquid and a function of moisture permeability.
[0004]
[Means for Solving the Problems]
The present invention relates to a substantially vertically long absorbent article comprising a liquid-permeable surface sheet, a liquid-impermeable first leak-proof sheet, and a liquid-retaining absorbent interposed between the two sheets. The first leak-proof sheet has air permeability, and a pair of left and right liquid-impervious second leak-proof sheets are arranged on both sides in the longitudinal direction of the absorbent body. The second leak-proof sheet does not exist at least in the central portion in the longitudinal direction on the contact surface side , and the second leak-proof sheet has one edge along the longitudinal direction of the absorber. It is located between the absorber and the top sheet on the skin contact surface side, and the other edge is between the absorber and the first leak-proof sheet on the non-skin contact surface side of the absorber. The second leak-proof sheet and the front are arranged on the non-skin contact surface side of both side portions of the absorber. It is obtained by achieving the above objects by between the first barrier sheet to provide an absorbent article which is bonded via an adhesive.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
The present invention will be described below based on preferred embodiments with reference to the drawings. A sanitary napkin 1 according to this embodiment shown in FIGS. 1 and 2 has a substantially vertically long shape, a liquid-permeable top sheet 2, a liquid-impermeable first leak-proof sheet 3, and both sheets. A liquid-retaining absorber 4 interposed therebetween is provided.
[0006]
Specifically, the absorbent body 4 has a substantially rectangular shape in plan view, and the non-skin contact surface side is in contact with the first leak-proof sheet 3 so as to be on the first leak-proof sheet 3. It is mounted on. The top sheet 2 forms a skin contact surface that is in contact with the wearer's skin when worn, and has a larger outer dimension than the absorbent body 4, and the left and right side edges in the longitudinal direction are It covers both the left and right sides of the absorbent body 4 and is located on the non-skin contact surface side of the absorbent body 4, and both longitudinal ends thereof extend outward from the front and rear ends 4b and 4b of the absorbent body. ing. And the surface sheet 2 and the 1st leak-proof sheet 3 are mutually joined by the heat seal in the part extended rather than the edge parts 4b and 4b before and behind the absorber 4. FIG.
[0007]
An adhesive 9 is applied in a spiral shape on the surface of the first leak-proof sheet 3 that is in contact with the absorbent body 4, and the adhesive 9 is placed on the non-skin contact surface side of the absorbent body 4 via the adhesive 9. The first leak-proof sheet 3 is bonded and fixed. An adhesive (not shown) for fixing the napkin 1 to the wearer's clothes is applied to the lower surface of the first leak-proof sheet 3, and the adhesive is protected by a release paper (not shown). Yes.
[0008]
Thus, the first leak-proof sheet 3 has air permeability, preferably water vapor permeability. As a result, when the sanitary napkin 1 is worn, an increase in humidity in the wearing is prevented, and a comfortable wearing feeling is obtained.
The degree of water vapor permeability of the first leak-proof sheet 3 refers to the moisture permeability measured according to JIS Z0208 (hereinafter referred to as moisture permeability when measured in accordance with this method) from the viewpoint of preventing increase in humidity within the wearing. ) is preferably 0.7g / (100cm 2 · 24hr) or more, more preferably 1.0~5.0g / (100cm 2 · 24hr) , particularly preferably 1.5~3.0g / (100cm 2 · 24hr).
[0009]
The first leak-proof sheet 3 in the present embodiment is made of a hydrophobic film that is liquid-impermeable and breathable, and preferably has water vapor permeability. As a preferable example of such a film, a film is formed by melt-kneading a hydrophobic thermoplastic resin and a fine inorganic filler made of calcium carbonate or the like or an incompatible organic polymer, etc. Or the porous film obtained by biaxial stretching is mentioned.
Further, as the first leak-proof sheet 3, various sheets that are conventionally used for absorbent articles and are liquid-impermeable and breathable, preferably water vapor-permeable, such as polyethylene, Water-repellent nonwoven fabric made of polyester, polypropylene, polyethylene-polypropylene composite fiber, polyethylene-polyester composite fiber, etc., incompatible thermoplastic resins, specifically polyethylene, polyester, polypropylene, nylon, acrylic, etc. A water-repellent non-woven fabric composed of combined split composite fibers, a spunbonded non-woven fabric, a water-repellent multilayer composite non-woven fabric composed of a melt-blown non-woven fabric, or a composite sheet of the above-mentioned sheet and the water-repellent non-woven fabric, or the above-mentioned sheet and polyethylene, polyester, Polypropylene and polyethylene-polypropylene Pyrene composite fiber, polyethylene - composite sheets of a hydrophilic nonwoven fabric made of polyester bicomponent fibers, and the like.
[0010]
In general, an absorbent article using a non-slipping adhesive is fixed to the wearer's clothing by a non-slipping adhesive depending on the film strength of the liquid-impermeable first leak-proof sheet 3 that hits the non-skin contact surface side. However, when removing after use, the adhesive or a part of the adhesive and the leak-proof sheet may remain on the clothes. From the viewpoint of preventing such a problem, the first leak-proof sheet 3 preferably has a tear strength measured in accordance with JIS K7128 (Method B) of 20 g or more in the MD direction and 100 g or more in the CD direction. In addition, as a configuration of the absorbent article, from the viewpoint of preventing the above problem, the absorbent body 4 and the first leak-proof sheet 3 may be further bonded and integrated with an adhesive at a portion where the adhesive is applied. preferable.
[0011]
Further, a pair of left and right liquid-impermeable second leakproof sheets 5 and 5 are provided on both side portions 4a and 4a in the longitudinal direction of the absorbent body 4 in the sanitary napkin 1 so as to cover the both side portions 4a and 4a. Is arranged.
The second leak-proof sheet 5 is a belt-like sheet, and one edge 5 a along the longitudinal direction is located on the skin contact surface side of the absorber 4, and the other edge 5 b is the absorber 4. It arrange | positions so that it may be located in the non-skin contact surface side. And the 2nd leak-proof sheet | seats 5 and 5 do not exist in the center part of the longitudinal direction in the non-skin contact surface side of the absorber 4. FIG. That is, the edge parts 5b and 5b located in the non-skin contact surface side of both the 2nd leak-proof sheets 5 and 5 are spaced apart. Further, the second leak-proof sheet 5 is disposed between the absorbent body 4 and the top sheet 2 at the side part 4 a of the absorbent body 4.
[0012]
The width of the portion of the absorbent body 4 on the non-skin contact surface side where the second leak-proof sheets 5 and 5 are not present, that is, the edge located on the non-skin contact surface side of the second leak-proof sheets 5 and 5 The width W1 between the portions 5b and 5b (see FIG. 2) is preferably 10 to 80 mm, and particularly preferably 20 to 80 mm, from the viewpoint of improving the leakage resistance and moisture permeability of the sanitary napkin 1. preferable.
Moreover, both edge parts 5b and 5b are spaced apart also in the junction part 11 of the longitudinal direction both ends of the sanitary napkin 1, ie, the junction part 11 of the surface sheet 2 and the 1st leak-proof sheet 3. FIG.
[0013]
Edges 5a, 5a located on the skin contact surface side of second leak-proof sheets 5, 5 are also spaced apart from each other, and from the viewpoint of securing a liquid absorbing surface that absorbs liquid, both edges 5a, The width W2 between 5a (refer FIG. 2) is 20-80 mm, It is preferable that it is 30-80 mm especially.
Further, from the viewpoint of improving the leak-proof property and moisture permeability of the sanitary napkin 1, the width W1 is 20 to 90% with respect to the width W3 (see FIG. 2) between the left and right ends of the sanitary napkin 1. It is preferable that the width W2 is 30 to 90% with respect to the width W3 between the left and right ends of the sanitary napkin 1 from the viewpoint of improving leakage prevention and liquid absorption.
[0014]
The second leak-proof sheet 5 is joined to the top sheet 2 on the skin contact surface side of the absorber 4. More specifically, groove portions 6 and 6 for preventing liquid diffusion are formed by embossing on the skin contact surface side of the sanitary napkin 1, and the second leak-proof sheet 5 includes the groove portions 6 and 6. The top sheet 2 and the absorbent body 4 are joined and integrated with each other by embossing to form 6.
Since the second leak-proof sheet 5 is bonded to the top sheet 2 on the skin contact surface side of the absorbent body 4, the liquid that has permeated the top sheet 2 has the top sheet 2 and the second leak-proof sheet 5. And leaking from the side of the sanitary napkin 1 is prevented.
Further, since the second leak-proof sheet 5 is joined and integrated with the top sheet 2 and the absorbent body 4 by embossing for forming the groove portions 6 and 6, the absorbed liquid diffuses in the absorbent body. However, it is possible to suppress the spread of the liquid to both sides of the absorber at the embossed portion. Further, even if a large amount of liquid is absorbed and spreads to the side part of the embossed part, the second leak-proof sheet can prevent leakage from the side part of the sanitary napkin.
[0015]
The second leak-proof sheet 5 is joined to the first leak-proof sheet 3 on the non-skin contact surface side of the absorber 4. More specifically, the second leak-proof sheet 5 is joined to the top sheet 2 via the adhesive 71 on the non-skin contact surface side on both sides of the absorbent body 4, and the top sheet 2 is further joined to the first leak-proof sheet. The sheet 3 is joined via an adhesive 71. That is, the second leak-proof sheet 5 is joined to the first leak-proof sheet 3 with the top sheet 2 interposed.
In this napkin 1, since the second leak-proof sheet 5 is joined to the first leak-proof sheet on the non-skin contact surface side of the absorbent body 4, the absorbent body 4 absorbs a large amount of liquid or Even when the sanitary napkin 1 is greatly deformed or the like, the liquid held in the absorbent body 4 can be prevented from leaking from the side of the sanitary napkin 1.
[0016]
The second leak-proof sheet 5 is also bonded to the surface of the absorbent body 4 on the non-skin contact surface side. That is, the second leak-proof sheets 5, 5 are joined to the non-skin contact surface side of the absorbent body 4 via the adhesive 72 at one edge 5 b, 5 b. Thereby, the liquid leak from the side part of the sanitary napkin 1 is prevented more effectively.
[0017]
If the 2nd leak-proof sheet 5 is liquid-impermeable, there will be no restriction | limiting in particular in the material etc., The various sheet | seats used as a leak-proof sheet in the conventional sanitary napkin can be used. Moreover, it is preferable that the 2nd leak-proof sheet 5 has air permeability, As such an air-permeable sheet, the porous film etc. which were mentioned above as what can be used for the 1st leak-proof sheet 3 are mentioned.
Moreover, as the absorber 4, the surface sheet 2, the adhesives 71 and 72, etc., those conventionally used for absorbent articles can be used without particular limitation.
[0018]
The sanitary napkin 1 of the present embodiment can be used by being fixed to clothing such as shorts as in the conventional sanitary napkin.
And according to the sanitary napkin 1, since the 1st leak-proof sheet | seat 3 has air permeability, the water vapor | steam which generate | occur | produces from the liquid absorbed by the absorber 4 is discharged | emitted out of an absorbent article, and wearing Increase in humidity is prevented. Thereby, a feeling of wetness and a feeling of stuffiness can be eliminated, and a comfortable wearing feeling can be obtained.
In addition, since the second leak-proof sheet 5 is arranged in a predetermined manner at a predetermined location, even when the absorbent body 4 absorbs a large amount of liquid or when the sanitary napkin 1 is greatly deformed, absorption is performed. The liquid held in the body 4 does not leak from the side portion of the sanitary napkin 1.
[0019]
In addition, since the second leak-proof sheets 5 and 5 are not present in the longitudinal center portion of the absorbent body 4 on the non-skin contact surface side, a sheet having no air permeability is used as the second leak-proof sheet 5. Even in such a case, it is possible to suppress an increase in humidity in the wearing.
Moreover, since both edge parts 5b and 5b of both the 2nd leak-proof sheets 5 and 5 are spaced apart also in the junction part 11 of the both ends of the longitudinal direction of the sanitary napkin 1, the longitudinal direction of the sanitary napkin 1 is carried out. The joint portions 11 at both end portions of the knives are flexible and have excellent wearing feeling.
In the sanitary napkin 1, a leak-proof groove 8 is further formed inside the groove portions 6 and 6 for preventing liquid diffusion on the skin contact surface. Therefore, the diffusion of the absorbed liquid is absorbed by the sanitary napkin 1. It can suppress in a center part and can prevent the spreading of the liquid not only to a side part but to the longitudinal direction.
[0023]
In addition, as for the 2nd leak-proof sheet | seats 5 and 5, both the edge parts 5b and 5b may be laminated | stacked etc. in the both ends of the longitudinal direction of a sanitary napkin. In addition to sanitary napkins, the present invention can also be applied to disposable diapers, incontinence pads, panty liners, pet sheets, and the like.
[0024]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, the absorbent article in which the liquid leakage prevention function of the absorbed liquid and the moisture-permeable function were compatible is provided.
[Brief description of the drawings]
FIG. 1 is a partial perspective view showing a sanitary napkin as an embodiment of an absorbent article of the present invention.
FIG. 2 is a cross-sectional view taken along line AA in FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Sanitary napkin 2 Surface sheet 3 1st leak-proof sheet 4 Absorber 5 2nd leak-proof sheet 6 Groove part (joint part of a surface sheet and 1st leak-proof sheet)

Claims (4)

液透過性の表面シート、液不透過性の第１防漏シート、及び両シート間に介在された液保持性の吸収体を備えた実質的に縦長の吸収性物品において、
前記第１防漏シートは、通気性を有しており、
前記吸収体の長手方向の両側部に左右一対の液不透過性の第２防漏シートが配されており、
前記吸収体の非肌当接面側における長手方向の少なくとも中央部には、前記第２防漏シートが存在しておらず、
前記第２防漏シートは、その長手方向に沿う一方の縁部が、前記吸収体の肌当接面側において該吸収体と前記表面シートとの間に位置し、他方の縁部が、該吸収体の非肌当接面側において該吸収体と前記第１防漏シートとの間に位置するように、配されており、
前記吸収体の非肌当接面側において、前記第２防漏シートと前記第１防漏シートとの間が接着剤を介して接合されている吸収性物品。In a substantially vertically long absorbent article comprising a liquid-permeable top sheet, a liquid-impermeable first leak-proof sheet, and a liquid-retaining absorbent interposed between the two sheets,
The first leak-proof sheet has air permeability,
A pair of left and right liquid-impermeable second leak-proof sheets are arranged on both sides in the longitudinal direction of the absorber,
At least the central part in the longitudinal direction on the non-skin contact surface side of the absorber does not have the second leakproof sheet ,
In the second leak-proof sheet, one edge portion along the longitudinal direction is located between the absorbent body and the surface sheet on the skin contact surface side of the absorbent body, and the other edge portion is Arranged so as to be positioned between the absorbent body and the first leak-proof sheet on the non-skin contact surface side of the absorbent body,
An absorbent article in which the second leak-proof sheet and the first leak-proof sheet are bonded via an adhesive on the non-skin contact surface side of the absorber. 前記吸収体の肌当接面側において、前記表面シートと前記第２防漏シートとが接合されている請求項１に記載の吸収性物品。  The absorptive article according to claim 1 in which said surface sheet and said 2nd leak-proof sheet are joined in the skin contact surface side of said absorber. 前記吸収体の非肌当接面側において、前記第２防漏シートと該吸収体とが接着剤を介して接合されている請求項１又は２記載の吸収性物品。 The absorptive article according to claim 1 or 2 with which said 2nd leak-proof sheet and this absorber are joined via an adhesive in the non-skin contact surface side of said absorber. 前記吸収体の肌当接面側において、前記表面シート、前記第２防漏シート及び前記吸収体が、エンボス加工により接合され一体化されている請求項２又は３記載の吸収性物品。  The absorptive article according to claim 2 or 3 with which said surface sheet, said 2nd leak-proof sheet, and said absorber are joined and integrated by embossing in the skin contact surface side of said absorber.
JP21433499A 1999-07-28 1999-07-28 Absorbent articles Expired - Fee Related JP3856990B2 (en)

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