JPWO2004000188A1 - Absorbent articles - Google Patents

Abstract

A disposable absorbent article, wherein the absorbent article 10 including the absorbent body 20 and a sheet member covering the absorbent body 20 further includes a conforming structure 24 disposed on the body side of the absorbent body 20. The conforming structure 24 includes a flexible parcel 18 and a particulate element 16 that can be moved relative to each other, and can be passed through the absorbent 20 so that an object to be absorbed can pass therethrough. It is fixed. By securely fitting a delicate shape such as a urination opening or a genital area of the wearer of the absorbent article, the appearance at the time of wearing is excellent, and leakage can be prevented without impairing the wearing feeling.

Description

  The present invention relates to a disposable absorbent article used for menstruation and incontinence.

In conventional absorbent articles such as sanitary napkins, an absorbent body made of wood pulp or the like is in contact with the body with a permeable sheet sandwiched therebetween, so that deformation of the contacting body part due to movement of the contacting body etc. It cannot be said that it can respond flexibly to. Therefore, it cannot be said that these fit the body sufficiently. Therefore, a gap is generated between the body and the absorbent article, and body fluids discharged from the body may leak from the gap between the absorber and the body. Further, the absorbent body may be deformed when it absorbs bodily fluids and the like, and even if it is sufficiently fitted to the body in the initial stage of wearing, the gap between the body and the body may be formed later. Furthermore, when pressure is applied to the absorber due to body movement or the like, the already absorbed body fluid may leak out. As means for solving such a problem, an absorbent product having a conformable structure using beads is disclosed (Japanese Patent Laid-Open No. Hei 4-263857).
However, what is disclosed is a flat napkin in which the beads are arranged on the entire flat surface, or a cylindrical tampon in which the beads are arranged in the center and wrapped in an absorber. With such a napkin structure, the fit to the body is inadequate and the buttocks feel uncomfortable, and it is not possible to fully adapt to the delicate shape of the wearer's body, particularly the urination mouth and genital area, It is easy to prevent urine and blood from being reliably received and absorbed. For this reason, leakage may occur and the underwear may become dirty.
Therefore, by conforming to delicate shapes such as the urination opening and genital area of the wearer of the absorbent article, it is excellent in appearance when worn and can be prevented from leaking without impairing the wearing feeling. It is an object of the present invention to find this structure and to make this adaptable structure applicable to other sanitary products.

The present invention has been made in view of the problems as described above, and its purpose is to reliably fit a delicate shape such as a urination opening or a genital area of the wearer of the absorbent article. It is an object of the present invention to provide a conformable structure that is excellent in appearance and can prevent leakage without impairing the wearing feeling. In the already disclosed conformable structure using beads, the three-dimensional shape of the body with which the absorbent article abuts is not sufficiently considered, and if there is conformance, the gap between the body is reduced or eliminated. It was hoped. However, a gap may be formed in the case of a change between different postures such as the three-dimensional shape of the body and the sitting position. Therefore, in the present invention, in consideration of the three-dimensional shape of the absorbent article and its change, the conformable structure is arranged at an appropriate site and / or the structure of the component of the conformable structure. The above-mentioned problem can be solved by adding ingenuity.
That is, in the disposable absorbent article in which the absorbent article including the absorbent body and the sheet member covering the absorbent body further includes the conformable structure disposed on the body side of the absorbent body, the conformable structure is flexible. A small package and a structural element that are movable with respect to each other and are wrapped in the package, and are characterized in that an object to be absorbed can penetrate the absorber and is fixed in a narrow width.
More specifically, the present invention provides the following.
(1) An absorbent article comprising: an absorbent body; and a sheet member having at least part of the permeability of the absorbent body to the object to be absorbed and covering the absorbent body; An adaptable structure having a contact surface that contacts the wearer's or animal's genital area and / or its vicinity and deforms flexibly in accordance with the outer shape of the genital area and / or its vicinity is disposed on the body side of the absorbent article. The conforming structure includes a flexible parcel and a granular element encased in the parcel with a predetermined margin space, and a thickness through which the absorbed material can permeate. The absorbent article is characterized in that it is arranged narrowly on the body side.
Here, the absorber may absorb at least one of urine, blood, other body fluids, water, a mixture with other liquids or solids, and a mixture of any combination thereof. You can include what you can.
The sheet member may include a top sheet and / or a back sheet. The top sheet may be a sheet having liquid permeability, and can be selected from hydrophilic nonwoven fabrics made of synthetic fibers such as polyethylene (PE) / polyethylene terephthalate (PET), PE / polypropylene (PP), PP / PP, and the like. .
The back sheet may have liquid impermeability, and a plastic film or a laminate sheet can be suitably used. For example, it can be selected from spunlace nonwoven fabric composed of composite fibers of PP and PET, composite sheet of film and nonwoven fabric, and the like. Moreover, it is preferable to have predetermined durability. Although it is not always necessary, it is preferable that the surface has a good appearance and feel, and it is more preferable that a color and a pattern can be attached.
The wearer is generally a human but is not limited to young and old. The animal is preferably a non-human animal, and more preferably a non-human mammal.
The genital area may generally mean the external genital organs of human men and women, but in the case of the above animals, it may mean the corresponding organ. Therefore, “the vicinity” may mean the vicinity of such an external genitalia, and is a part of the body that is mainly outside such as the urethral opening and the like, and may be hit by an absorbent article. It may contain parts (in animals, corresponding parts).
The contact surface that contacts the genital area and / or the vicinity thereof may include the contact surface of the conforming structure that contacts the genital area and / or the vicinity thereof so as to apply pressure directly or indirectly. “Direct” means that there is no inclusion between the contact surface and the above-mentioned shadow, etc., and “Indirect” means that there is an inclusion between the contact surface and the above-mentioned shadow, etc. Good. Inclusions may be liquid or solid, and may include, for example, the above-described sheet member. These inclusions may have shape flexibility and do not significantly impair the deformation function of the contact surface. preferable. Therefore, the contact surface that deforms flexibly in accordance with the external shape of the pubic region and / or the vicinity thereof may be deformed so as to follow the external shape of the external body shape such as the external genitalia. Here, “correspondingly flexibly” means that the contact surface is flexible, and the shape of the contact surface does not change or affects the outer shape of the shadow and / or the vicinity thereof. It may include changing.
The conforming structure may include a contact surface that flexibly corresponds to the shadow and / or the outer shape in the vicinity thereof that touches as described above, and a content that deforms via the contact surface. Such an absorbent article can generally be divided into a body side and an anti-body side. The body side is a side closer to the outer shape of the body to be contacted, and the anti-body side is the other side. Therefore, the conforming structure disposed on the body side is disposed at a location that is relatively easy to contact the outer shape of the body. Since the absorbent article includes at least the conforming structure and the absorber, the conforming structure is usually disposed on the body side and the absorber is disposed on the non-body side.
The sheet member may be permeable to at least a part thereof to be absorbed by the absorber, for example, the entire top sheet or a part thereof may be permeable. The object to be absorbed may be any substance that can be absorbed by the absorber, and may be permeable when at least part of such a substance can pass therethrough.
The sheet member covers the absorber, but does not necessarily need to be in direct contact with the absorber, and there is a degree of freedom in its arrangement. For example, when at least a part of the sheet member is disposed on the contact surface, the sheet member may wrap both the conforming structure and the absorber, and at least a part of the sheet member may be the conforming member. It may also serve as at least a part of the structure parcel, or may overlap the parcel and wrap the conforming structure and the absorber. As an example, the sheet member that covers the absorbent body may also serve as a package of the conforming structure and integrally wrap the contents of the absorbent body and the conforming structure. That is, the sheet member is not limited to a single flat sheet shape, but may have a composite sheet shape (including a three-dimensional shape) in which several sheets are combined.
The flexible package covers at least a part of the contact surface of the conforming structure, and the pressure of the one that deforms and contacts the contents of the conforming structure (for example, the genital area), and other factors, At least a part of the parcel can be flexibly deformed. As described above, the contact surface on which at least a part of the parcel is disposed may be in direct or indirect contact with the shadow and / or the outer shape in the vicinity thereof. Here, “directly” may mean that the contact surface is in direct contact with the shadow and / or its outer shape, and “indirect” means that the contact surface, the shadow and / or It may mean that something is interposed between the outer shape in the vicinity thereof. The “something” may include any state or form such as a solid or liquid, but preferably does not significantly impair the deformation function of the contact surface. For example, the sheet member may be interposed, and may be sandwiched between the outer shape such as the shadow and at least a part of the parcel disposed on the contact surface. A state where a predetermined margin space is set in this parcel is not a state in which the contents wrapped in the parcel are overflowing and are added if necessary. It may mean a state in which the contents of the same type (whether of the same type or different type) can be further wrapped.
The predetermined margin space can be calculated from the margin space ratio, which is a relative value thereof, and this margin space ratio can be expressed as follows, for example. That is, the volume B of the content actually contained is subtracted from the volume A of the content when the content is completely filled in the package, and the difference is divided by the previous volume A and expressed as a percentage. [((A−B) / A) × 100]. For example, when packing a sphere q having a small diameter in a certain parcel P having a spherical shape, even if the volume of P is 100 cm ³ , the total volume when the sphere q is fully packed is, for example, 50 cm ³ . If the total volume of the actually packed sphere q is 30 cm ³ , the marginal space ratio is ((50−30) / 50) × 100 = 40%. Alternatively, the packing ratio expressed as a percentage by dividing the volume B of the actual contents by the volume A when the contents are completely filled may be used [(B / A) × 100]. Such marginal space ratio is preferably about 20% to about 80%, more preferably about 35% to about 65%. In calculating the marginal space ratio, (1) the package is small or stretched so that the expansion and contraction when the contents are packed is constant, and (2) the package is sufficiently flexible. It is assumed that when the contents are packed, it will naturally change to an optimal shape. That is, it is premised that the packing method of the contents is constant, such as holding the packing body by holding the packing opening and packing the contents while the package is floating in the air. A granular element is a content wrapped in the above-mentioned parcel, and the number can be counted under a predetermined condition. This granular element may include cases where it is split or divided and does not prevent itself from joining other granular elements into larger granular elements. This conforming structure may be arranged narrowly on the body side. “Narrow” may include representing an elongated state like a strip.
(2) The absorbent article according to (1), wherein at least one section of the parcel has an Ω shape, and the granular element is a substantially spherical object.
Here, the cross-section of the parcel may include a cross-sectional shape seen when a parcel having a three-dimensional shape including a granular element that is one of the contents is cut along an arbitrary plane. May include a cross-sectional shape of a cross section substantially perpendicular to the front-rear direction of the wearer or the like. The cross-sectional shape of Ω may mean that the cross section of the parcel has a substantially circular shape with at least one constricted shape like a drawstring bag. The constriction may include a gap (space) leading to an external space located outside the space enclosed by the parcel, and may include that the gap is sufficiently thin. From this space that leads to the outside, granular elements that are one of the contents can be taken in and out, and when using the conforming structure, the space leading to the outside is narrowed by some method, and the granular elements that are the contents are It may mean that it is in a state where it is difficult or impossible to go outside. In addition, the granular element having a substantially spherical shape may include that the granular element has a spherical shape, a saddle-shaped spherical shape, a flat spherical shape, or the like. (Or a defect) may also be included. For example, a hemispherical shape is also included. Furthermore, a plurality of granular elements may be gathered to have the same shape, and a case where one granular element is decomposed or divided into a plurality of granular elements may be included.
(3) The absorbent article according to (1) or (2) above, wherein the parcel is made of a liquid-permeable sheet material.
Here, the liquid-permeable sheet material may include a sheet-like material through which a liquid or other fluid can permeate. As such a thing, it can select from the hydrophilic nonwoven fabric which consists of synthetic fibers, such as PE / PET, PE / PP, PP / PP, for example. A part of the parcel that may be called a packing cover material may be the same as a part of the top sheet.
(4) The absorbent article according to any one of (1) to (3), wherein the absorbent includes a central absorbent and / or a side absorbent.
Here, the central absorbent body is an absorbent body that extends in a slightly narrow state in the front-rear direction of the wearer who wears the absorbent article, and may include an absorbent body that is positioned approximately in the center in the left-right direction. The absorber may include a water-absorbing or liquid-holding layer, and may be composed of hydrophilic fibers such as SAP and pulp sandwiched between tissues, synthetic fibers, or a mixture thereof. Without limitation, as an example, the basis weight of SAP is about 310 g / m ² , the basis weight of pulp is about 400 g / m ² , or synthetic fibers with about 20% to 30% of the basis weight of pulp are mixed and heat-treated to form a sheet You may make it. Further, the side absorbent body may include an absorbent body extending in a slightly narrow state in the front-rear direction of the wearer on the left and right sides as viewed from the wearer of the central absorbent body (or the center line in the absence of the center absorbent body). The absorber may include a water-absorbing or liquid-holding layer, and may be composed of hydrophilic fibers such as SAP and pulp sandwiched between tissues, synthetic fibers, or a mixture thereof. Without limitation, as an example, the basis weight of SAP is about 310 g / m ² , the basis weight of pulp is about 400 g / m ² , or synthetic fibers with about 20% to 30% of the basis weight of pulp are mixed and heat-treated to form a sheet You may make it.
(5) The absorbent article has a U-shape in its cross section, and at least a part of the elements constituting the U-shape is the central absorbent body and / or the side absorbent body (4). The absorbent article as described.
Here, the U-shape may be, for example, a U-shape represented by a longitudinal section of a cup. The elements constituting the U-shape may include three elements: an upper horizontal bar, a right vertical bar connected at the end of the upper horizontal bar, and a lower horizontal bar connected to the end of the right horizontal bar. At least one of these elements may be constituted by a cross section of the central absorber and / or the side absorber.
(6) At least a part of the parcel of the conforming structure is on a third surface excluding the contact surface (first surface) and the surface (second surface) directly or indirectly in contact with the absorber. The absorption according to any one of (1) to (5) above, wherein at least a part of the parcel disposed on the third surface is impermeable Sex goods.
Here, the “surface directly or indirectly in contact with the absorber (second surface)” means that a substance (absorbed material) that is absorbent to the absorber passes through the second surface and passes through the second surface. It may mean a surface arranged so as to be able to reach the absorber.For example, in the case of a directly contacting surface, when passing through the surface, the absorbed material can immediately contact the absorber, indirectly. In the contact surface, the object to be absorbed can pass through the surface and other interposition members and contact the absorber. Therefore, even if the said to-be-absorbed material passes the 3rd surface, this to-be-absorbed material will not reach | attain the said absorber in the system of the absorbent article concerning this invention. Here, the parcel may be a single sheet-like member, or may be a composite member having a relationship such that a plurality of sheet-like members partially overlap. The above-described functions relating to permeability may be exhibited as a whole of such a composite material.
(7) The absorbent article according to any one of (1) to (6), wherein the conforming structure has a thickness through which the absorbed object can pass.
(8) A sanitary product using the absorbent article described in any one of (1) to (7) above.
Here, sanitary products may include sanitary napkins, interlabial products such as interlabial pads, tampons, and the like.
(9) An underwear using the absorbent article described in any one of (1) to (7) above.
(10) The undergarment according to (9), wherein the undergarment is a diaper, shorts, or pants.

表１において、マル、三角、バツ等によって、余裕空間率の好ましさが評価されている。この評価は、本実施例の範囲で絶対的な尺度と考えることも可能であるが、種々の条件下で評価される場合は、必ずしも絶対値が一致するとは限らない。従って、表中の「上限」、「下限」は、おおよその目安と考えるのが妥当である。むしろ、以下のように、相対的な関係を重要視することができる。実施例１−３がかなり小さい余裕空間率（かなり大きいパッキング率）を持つため、実施例１−２は実施例１−３より好ましい。また、実施例１−４がかなり大きい余裕空間率（かなり小さいパッキング率）を持つため、実施例１−５は実施例１−４より好ましい。同様に、実施例１−８が比較的小さい余裕空間率（比較的大きいパッキング率）を持つため、実施例１−７は実施例１−８より好ましい。また、実施例１−３がより小さい余裕空間率（より大きいパッキング率）を持つため、実施例１−８は実施例１−３より好ましいと考えられる。このようにおおよその目安であっても、ビーズの径が異なるものにおいても余裕空間率の好ましさを比較することが可能と考える。
図２Ａ及び図２Ｂに、女性の股間の形状を模式的に示している。図２Ａは、女性の身体の左右方向略中央部における断面形状を表している。この図において、２０２は臍（へそ）を示している。前面の部位Ａである恥骨部はなだらかなおわん状形状をしており、横からの圧力が殆どないと思われる。部位Ｂの膣口部では若干身体側（図中上側）に湾曲しており、ここで横からの圧力が最もかかることとなる。従ってこの部分において、上記順応構造体２４が中央部で上に凸となると膣口に接することができることとなる。部位Ｃは、お尻の部分で、横からの圧力は少なく、お尻の割れ目が始まることとなる。図２Ｂでは、下から股間を見上げた下視図を示している。上述の部位Ａ、部位Ｂ、部位Ｃが、略中央に順に並んでいることがわかる。両側の楕円は、両足２１０である。
図３Ａ、図３Ｂ、図３Ｃ、図３Ｄ及び図３Ｅは、順応構造体２４の粒状要素１６を小包体１８に様々な形で詰めた例を示している。例えば、小包体１８は、順応構造体２４の上下面に液透過性を有していればよい。図３Ａのように、側面１８ｂを液不透過性にして液の流れを縦方向にコントロールすることができる。この側面１８ｂは、上述の第３の面に相当する実施例の１つである。ここでは、フィルムを開孔した上面１８ａ及び下面１８ｃと、非開孔の側面１８ｂと、を組み合わせて構成することもできる。また、図３Ａで小包体の上面１８ａ及び下面１８ｃに貫通孔が形成されている。従って、小包体の上面１８ａ及び下面１８ｃが液不透過性であっても、液を透過させることができる
また、図３Ｂは、頭頂部がやや広がったシルクハット断面形状の第１の小包体１８ｄと、そのつば相当部に並んで該小包体１８ｄの開口部を閉じるように蓋をする第２の小包体１８ｅと、により粒状要素１６が包まれている。これらの主要部の側面には、疎水性シート１７（第３の小包体に相当）が配置されている。これらのシート１７、１８ｄ、１８ｅを総合して小包体と考えることができ、疎水性シート１７は、この小包体の側面（第３の面に相当する実施例の１つ）に不透過性の機能を付与することになる。この第１の小包体１８ｄの断面形状は、下に行くほど窄まるため、広義の意味でオメガ（大文字）形状ということができる。小包体１８ｄ、１８ｅは、液透過性であってもよい。
図３Ｃは、幅方向の中央に高い山の形状をした第４の小包体１８ｆと、その底辺に相当するところに平らに延びる第５の小包体１８ｇと、により、底辺を下にした断面三角形の形状をした空間を規定することができる。この空間に粒状要素１６が包含され、また、山形状の両脇斜面を形成する第４の小包体１８ｆの外側に疎水性シート１７（第６の小包体に相当）が配置されている。これら第４、５、６の小包体を総合して小包体に相当すると考えてよい。前記疎水性シート１７（第６の小包体に相当）により、この実施例の小包体は、側面（第３の面に相当する実施例の１つ）に不透過性という機能を有している。これらの実施例の断面形状だけでなく、順応構造体２４の断面は、楕円や台形、三角形のような形状にすることもできる。また、第４の小包体１８ｆ及び第５の小包体１８ｇは、液透過性であってもよい。
図３Ｄでは、吸収体を被覆するシート部材が順応構造体２４の小包体を兼ねていることに相当する実施例の１つを示している。トップシート１２をその最上小包体面に有する順応構造体２４は、第７の小包体に相当するトップシート１２の一部（頭頂部）と、カップ状の小包体１８ｈ（第８の小包体に相当する実施例の１つ）と、その側面にある疎水性シート１３（第９の小包体に相当）と、前記第７と８の小包体に囲まれた空間配置される内容物である粒状要素１６と、からなっている。ここでは、疎水性シート１３が、吸収体２０の側面まで延びており、その側面の液漏れをより効果的に防止することができる。このようにトップシート１２が小包体の少なくとも一部を兼ねるようにしてもよい。
ちなみに前記第２の面に相当する面について、図３Ｅは、いわゆる小包体１８ｉの断面形状をΩ状にして粒状要素１６を詰め込んだ典型的な順応構造体２４（小包体１８ｉと粒状要素１６から構成）を含む吸収性物品の例である。この小包体１８ｉの断面形状は、狭義において、オメガ（大文字）形状をしている。この吸収性物品では、順応構造体２４の小包体１８ｉの上部が接触面となっており、トップシート１２の前記接触面当接部を介して着用者の陰部等に接触する。このとき、着用者の体液その他の液状物は、かかる当接部を通して接触面に到達し、その接触面を透過して順応構造体２４の内容物である粒状要素１６に接触するようになる。
図４は、第１実施形態の吸収性物品２０を腰の周り全体を包み込む被服材と一体化して、パンツ型オムツ３０に応用したものである。順応構造体３８は、着用者の陰部３６に密着するようになっている。図５は、図４のオムツを展開した際のシート３２である。吸収性物品２０は、パンツ形状を構成するシート３２に貼付されている。
［第２実施形態の複合生理用品］
図６は、第２の実施形態である陰唇間パッドに順応構造体２４を適用した吸収性物品４０を略中央部で切断した断面図を示す。ここでは、陰唇間パッドが展開された状態ではなく、折り曲げ又は湾曲されて、装着時又はその直前の時の状態を表している。陰唇間パッド（吸収性物品に相当する実施例の１つ）は、断面において、左に開口を設けた横倒しＵ字状（又はコの字状）の形状をしており、その右側が身体側となる。最も身体側に近い所にトップシート１２、及び、小包体１８に包まれた粒状要素１６から構成される順応構造体２４が固定されている。従って、トップシート１２が、前記順応構造体２４の小包体１８の一部を兼ねることとなる。このとき、右側に突き出るように湾曲した外面が接触面１９に相当し、この実施例では、小包体１８がその接触面１９に配置され、直接陰部等に接触することとなりえる。接触によりその陰部等の形状に応じて前記順応構造体２４の接触面１９が変形する。このような吸収体２２は、トップシート１２とバックシート１４に挟まれるようにして配置されている。トップシート１２とバックシート１４は、接合部１５で接続されている。これら構成要素の材質や特性は、上述の第１の実施例と同様である。
図７は、中央線で２つに折られた陰唇間パッドを展開したときの平面図である。順応構造体２４と周辺にあるトップシート１２の境目４２が楕円状に表されている。
［第３実施形態の複合生理用品］
図８及び図９は、本発明の第３の実施形態であるパンツ型オムツを示す。図８は、パンツ型オムツ５０の略中央部横断面（図９のＸ−Ｘ’断面）を示したものである。トップシート１２が全体の上面を覆っており、図９中、左右方向において略中央の位置で、トップシート１２のすぐ下に粒状要素１６を小包体１８で包み込んだ順応構造体２４が断面略矩形形状で、中央に凸部を持ついわゆる表彰台形状の中央凸部分を形成している。３つの断面略矩形形状で描かれている吸収体２３が互いに略同じ高さの位置に並んで配置され、前記表彰台形状の土台部分を形成している。これらの吸収体２３は、中央の中央吸収体とその両側にあるサイド吸収体に分けられている。これらの吸収体２３の下側にはバックシート１４が配置され、両サイドの接合部５２（トップシート１２とバックシート１４とを接合）の下には弾性体５６がそれぞれ配置されている。これらの弾性体５６の下には、小包体シート５４が配置されている。
図９は、このパンツ型オムツ５０を開いて展開したものである。図９中、吸収性物品２０（図８が示すものの主要部）の上側にある前方シート６６の両サイドには、図中上下に延びる縦長の接着部５８が配され、吸収性物品の下側にある後方シート６８の両サイドに上下に延びる接着部６０が配されている。これらの接着部５８、６０は、右サイド又は左サイドで１対の接着部を構成し、図９に示される展開した状態からパンツの立体形状を形成するようにホットメルト等の公知の技術で接合することができる。このオムツの略中央部には、トップシート１２の下に順応構造体２４が幅狭に配置され、その下側には、３つの吸収体２３から構成される吸保水層が配置される。図８中接着部５２の下側には、弾性体５６がバックシート１４と小包体シート５４に挟まれるように配置され、着用者の足に密着しやすく、漏れが少なくなるより好ましい構造となっている。また、後方シート６８には、図９中左右方向の略中央部を除いてその両側に弾性体６２をまばらに均等に配置した弾性部分があり、その上には、腰に固定するための弾性体６４を配置した弾性部分が設けられている。
［第４実施形態の複合生理用品］
図１０及び図１１は、本発明の第４の実施形態であるパンツ型オムツの前駆体７０を示している。この前駆体は、身ごろシート（アウター）と一体化し、組立てることによって、ウェスト開口と一対のレッグ開口を有するパンツ型使い捨てオムツとなる。図１０は、その略中央部に吸収性物品（図１０に断面で示されるものの主要部）を配置したオムツの横断面（図１１のＸ−Ｘ’断面）を示している。図８と同様に断面形状は、中央に凸部を持ついわゆる表彰台形状をしており、上から、トップシート１２が吸収性物品の上面全体を覆っており、その下に粒状要素１６を小包体１８に包むことにより形成される順応構造体２４が配置され、その下に、スリット２１は入っているが、完全には分離されていない吸収体２２が配置されている。この吸収体２２の下には、バックシート１４が配置され、両サイドに延びるサイドシート７３の下に弾性体７１がそれぞれの側に配置されている。その下には、小包体シート５４が配置されている。
図１１は、このパンツ型オムツ前駆体７０を広げて上から見た平面図である。吸収性物品において略中央部に、幅狭で順応構造体２４が前後方向に配置され、図中その吸収性物品の下側には前方吸収体２６（第１吸収部）が、図中その上側には後方吸収体２７（第１吸収部）が、その両脇にはサイド吸収体２８（第２吸収部）が配置されている。両サイドの湾曲部分下方にはレッグ股下ギャザー部７２があり、そこに弾性体７１が配置されている。また、両サイドの湾曲部分上方には、レッグ脇部７４が配置されている。図中後方吸収体２７の上側には後方シート６８があり、その中央部（弾性体なし）の両脇には、図中略水平に両サイド端へと延びる弾性体６２を配した弾性部を有する。後方シート６８の上端には、図中略水平に弾性体６４を配した弾性部がある。
第１吸収部は、少なくとも一層以上から成ることができ、股下中央部の順応構造体２４は、厚みが約１０ｍｍ以上ある。そのため、加圧に対して一定の厚みを維持することができる。また、股下中央部の順応構造体２４の幅は約５０ｍｍ以下であって、全体的には、砂時計型（若しくは亜鈴型）になることが好ましい。第２吸収部は、上記順応構造体２４の両側に１対で配置される。第２吸収部は、第１吸収部と一体となることもでき、或いは、分割して独立したものでもよい。このパンツ型オムツ前駆体７０を組立ててオムツにし、それを着用すると、これらの吸収体は船底型を呈することが多い。レッグ股下ギャザー部７２は、サイド吸収体２８の前方側であって湾曲した端部に配置してあるが、ここには、１又はそれ以上の弾性体７１を伸張状態で貼付けた後、この伸張を緩めることによりギャザーが形成される。レッグ脇部７４は、レッグ股下ギャザー部７２と共に足ぐり周りに実質的に連続して配置される。レッグ脇部７４は、伸張性（又は伸縮性）シートに伸縮弾性部材を非伸張状態で貼付け形成することができる。
［第５実施形態の複合生理用品］
図１２及び図１３は、本発明の第５の実施形態であるもう一つのパンツ型オムツ８０を示している。このパンツ型オムツは、図１３の展開図において、図中下側にある前方シート６６の両サイドの接着部５８と、上側に位置する後方シート６８の両サイドの接着部６０と、をホットメルト等の既知の方法で接合することにより、ウェスト開口と一対のレッグ開口を有するパンツ型オムツ８０となる。
図１２は、その略中央部に吸収性物品（図１２に断面で示される主要部）を配置したパンツ型オムツの横断面（図１３のＸ−Ｘ’断面）を示している。この図において上から、トップシート１２が吸収性物品の上面全体を覆っており、その下に粒状要素１６を小包体１８に包むことにより形成される順応構造体２４が配置され、その下に、分割された吸収体２３が中央の吸収体２３を上記順応構造体２４の略真下に置いた状態で横に並んで３つ配置されている。この吸収体２３の下には、バックシート１４が配置され、両サイドに延びるサイドシート８３の下に弾性体８２が両側に配置されている。その下には、更に別の弾性体８１が両サイドに配置されている。
図１３は、このパンツ型オムツ８０の前駆体を展開して上から見た平面図である。中央部に、幅狭で順応構造体２４が前後方向に配置され、図中その下には前方吸収体２６（第１吸収部）が、その上には後方吸収体２７（第１吸収部）が、その両脇にはサイド吸収体２８（第２吸収部）が配置されている。両サイドの湾曲部分にはレッグ股下ギャザー部８７があり、そこに弾性体８１が配置されている。また、両サイドの湾曲部分上方には、レッグ脇部７４が配置されている。このパンツ型オムツ８０には、更に、吸収体ギャザー８５が吸収性物品の両側に沿うように配置されており、以下に述べるような形状を形成している。後方吸収体２７の上側には後方シート６８があり、その両サイドに延びる弾性体６２を配した弾性部を両脇に有する。後方シート６８の上端には、弾性体６４を配した弾性部がある。前方吸収体２６の下側には前方シート６６があり、その両サイドに延びる弾性体６２を配した弾性部を両脇に有する。
図１３の接着部５８と６０とを接着し、このパンツ型オムツ８０の組み立てを開始すると、吸収体ギャザー８５の収縮に伴って引っ張られることにより、第２吸収部が立ち上がる。これは、第４の実施例のレッグ股下ギャザー部７２と同様の作用である。しかし、弾性体が配置される（延びる）方向に対してレッグ股下ギャザー部７２のように足ぐり周りと同一線上にはない。従って、２つの引っ張り力がそれぞれ分離して作用するため、吸収体ギャザー８５は、レッグ股下ギャザー部７２に比べて、レッグ股下ギャザー部に作用すべき力の分だけ軽減した力を発揮すればよいことになる。従って、吸収体ギャザー８５を構成する弾性体８２は、使用等による弾性体の機能に与えられるダメージを低減することができ、かつ、肌へのギャザーのあたりを弱くすることができる。本実施例では、パンツ型オムツを１つの例としてあげたが、オープンタイプでもよく、更には、アウター（身ごろシート）と一体化しない足ぐり付きパットとしても応用できる。また、第１吸収部の少なくとも一部をパットとして独立させて、パンツ型オムツとパットという組合わせも可能である。更には、テキスタイルショーツとパットとの組合わせも可能である。
［第６実施形態の複合生理用品］
図１４〜図１６は、本発明による第６の実施形態を示している。これは、吸収性物品（図１４に断面で示されているものの主要部）を適用した係止部のないショーツタイプのオムツ９０である。図１４は、着用者を基準として略中央の横断面（中央部のみ）を示したものである。図中上から、吸収性物品の上面を覆っているトップシート１２、その下で粒状要素１６を小包体１８によって包んだ順応構造体２４、その下には、吸収体２２が広がり、下部にはバックシート１４が配置されている。吸収性物品が載っているシート９２はサイドに延び足ぐりのところで終わっている。このサイド部分の下側に弾性体９４が配置され、足への密着性を向上させると共に、漏れを防ぐ構造となっている。更にその下には、最小包体となる身ごろシート９６が配置される。
図１５は、この係止部のないショーツタイプのオムツ９０を広げた平面図（但し、トップシート１２は、全体を覆っているのでトップシート１２を透視した状態で表示）である。身ごろシートには、弾性体６２、６４が周縁に沿うように配置されている。これらの弾性体６２，６４は、伸張状態で身ごろシートに貼付けられているため、緩めるとパンツ形状となる。この状態が図１６に示してある。弾性体６４と６２により、パンツのウェスト部が形成されているのがわかる。足ぐりの周りには弾性体９４からなるギャザーがあり、この足ぐりから見える順応構造体２４と吸収体２５が積層された状態で見えている。
［第７実施形態の複合生理用品］
図１７〜図１９には、本発明による第７の実施形態が示してある。これは、もう一つのパンツ型オムツ１００を示している。このパンツ型オムツ１００は、図中下側の前方シート６６の両サイドの接着部５８と、後方シート６８の両サイドの接着部６０と、をホットメルト等の既知の方法で接合することにより、ウェスト開口と一対のレッグ開口を有するパンツ型オムツ１００となる。
図１７は、その略中央部に吸収性物品（図１７に断面で示されるものの主要部）を配置したオムツの横断面（図１９のＸ−Ｘ’断面）を示している。この図において上から、トップシート１２が吸収性物品の上面全体を覆っており、その下に粒状要素１６を小包体１８に包むことにより形成される順応構造体２４が配置され、その下に、分割された吸収体２０が、略同じ幅で配置されている。その下にはスリット２１で分断されているものの一体型の吸収体２２が横に広がって配置されている。この吸収体２２の下には、バックシート１４が配置され、両サイドに延びるサイドシート（又はレッグ股下ギャザー部のサイドシード）１０４の下に弾性体８２が両側に配置されている。その下には、更に別の弾性体８１が最外層シート１０２に縫い込まれるように両サイドに配置されている。ここで、図１９は、このパンツ型オムツ１００を展開し、上から見た平面図であり、この平面図において平面的に見た場合、中央の順応構造体２４と吸収体２０、２２を含む部位の両側にあってスリット２１で切られた吸収体２２を含む部位を第２吸収部と呼び、それ以外の吸収体を含む部位を第１吸収部と呼ぶ。中央部に、幅狭で順応構造体２４が前後方向に配置され、図中その下側には前方吸収体２６（第１吸収部）が、その上側には後方吸収体２７（第１吸収部）が、その両脇にはサイド吸収体２８（第２吸収部）がスリット２１で切り分けた状態で配置されている。両サイドの湾曲部分にはレッグ股下ギャザー部８７があり、そこに弾性体８１が配置されている。また、両サイドの湾曲部分上方には、レッグ脇部７４が配置されている。後方吸収体２７の上側には後方シート６８があり、その両サイドに延びる弾性体６２を配した弾性部を後方シート６８の中央部（弾性体なし）の両脇に有する。後方シート６８の上端には、弾性体６４を配した弾性部がある。前方吸収体２６の下側には前方シート６６があり、その両サイドに延びる弾性体６２を配した弾性部を両脇に有する。
ここで、上記トップシート１２は、液体透過性を有するシートを好適に用いることができる。例えば、ＰＥ／ＰＰ、ＰＥ／ＰＥＴ、ＰＥ／ＰＥＴ等の合成繊維からなる親水性不織布から選ばれ得る。バックシート１４は、液体不透過性のプラスチックフィルムやラミネートシートを用いることができる。最外層シート１０２には、疎水性シートを用いることができる。例えば、ＰＰのスパンボンドやメルトブローン不織布、ＰＰ、ＰＥＴの複合繊維からなるスパンレース不織布、フィルムと不織布の複合シート等から選ぶことができる。所定の耐久性を有し、できるならば、外観や肌触りが良いことが好ましく、色や柄をつけることができればより好ましい。サイドシート１０４は、疎水性シートでポリオレフィン系のスパンボンド／ＳＭＳ不織布等から選ばれ得る。ＳＭＳ不織布とは、ＰＰの不織布からなるスパンボンドの間に、ＰＰの不織布からなるマイクロウェッブを挟み、三層構造を形成している不織布のことを言う。
吸収体２０，２２は、吸収コアは親水性繊維やＳＡＰやそれらを複合したシートから成ることができる。弾性体８１，８２は、天然ゴム、合成ゴム、熱可塑性合成樹脂からなる弾性糸或いはシートから選ばれ得る。順応構造体２４の粒状要素１６は、ポリオレフィンや発泡ウレタンからなるビーズを多数寄せ集めたもので構成される。ビーズの大きさは、平均直径が約１〜約１０ｍｍ程度である。このビーズの大きさは、小さすぎると、液透過性が劣り、大きすぎるとゴツゴツ感がし、また、全体として固い感じがする。ビーズは袋状の不織布に入れたり透過性の容器などに入れて形成される。順応構造体２４については、目付けが約１００〜約５００ｇ／ｍ^２で、厚みは約１０〜約２０ｍｍで、体圧がかかっても約７ｍｍ以上を維持するのが好ましい。幅は約３０〜約５０ｍｍ、長さは約１８０ｍｍである。
図１８では、本実施例のパンツ型オムツが着用された状態の断面図（図１９のＸ−Ｘ’相当部）を示している。図中に表されている第１吸収部は、上から、トップシート１２、小包体１８とその内容物である粒状要素１６とからなる順応構造体２４、第１吸収体２０、第２吸収体２２、バックシート１４、及び、最外層シート１０２から構成されている。吸収体は１又はそれ以上の層から構成することができる。第２吸収部も同様に上から、トップシート１２、第２吸収体２２、バックシート１４、及び、最外層シート１０２から構成されている。第１吸収部の各構成要素と第２吸収部の各構成要素とは、全く同じ材料構成からなるものであっても、全く異なる材料構成からなるものであっても、その中間であってもよい。順応構造体２４が配置される第１吸収部は、順応構造体２４が配置されない第２吸収部に比べ、厚みが厚く、剛性が高くなっている。レッグ股下ギャザー部１０４は、最外層シート１０２とレッグ股下ギャザー部１０４との間に弾性体８２を伸張状態で貼付けて形成され、ギャザーは、後にパンツ組立工程において伸張状態を緩めることにより形成される。弾性体８２を、伸張状態にする時には、フリーの状態に比べて、約１．５倍から約３倍に伸ばすことが好ましい。約１．５倍に満たないと第２吸収部の起立が十分ではなく、約３倍を超えると肌へのあたりがきつくなるからである。サイドシート１０４は、サイド端の接合部（ホットメルトなどの方法によりサイドシート１０４を最外層シート１０２とを接着する部分）で弾性体８２をくるんでいてもよく、また、弾性体８２は、もう少し内側に位置することもできる。レッグ股下ギャザー部１０４及び第１吸収部と第２吸収部の剛性差によって、第１吸収部の両側に第２吸収部が立ち上がり、断面カップ形状（又はコの字形状）を示す（図１８）。また、第１吸収部が荷重時に一定の厚みを維持することによって、その高さが維持されるので、第２吸収部の起立は維持される。
図１８〜２１Ｃを参照しつつ、この実施例の作用を説明する。本実施例のパンツ型オムツを組み立てるときに、レッグ股下ギャザー１０４が収縮し（又は縮み）引張り力を働かせることによって、曲げ剛性が第１吸収部より低い第２吸収部が第１吸収部の両側に起立する。これは、図１９において中央の第１吸収部より所定の距離だけ左右に隔てられたところに、図中略垂直に伸張状態の弾性体が配置され、この伸張状態を緩和させた際に、略中央の縦長の第１吸収部がその形状を維持しようとするのに対して、上記弾性体が配置された部分が収縮する。このため、この第１吸収部が相対的により縦長となり、余分な長さを解消するために所謂船底形状となるからである。つまり、船底形状には、起立した側面がその船底の両側に配置されている。このとき、立ち上がる第２吸収部２８の吸収体は上記縮んだ部分に合わせるように縮む若しくは湾曲することが好ましい。第２吸収部の起立を促進するために、第１吸収部と第２吸収部の間に剛性差をつけると好ましい。例えば厚みを大きく違えたり、スリットを入れたり、切り離したり、することができる。これにより、股下部にＵ字形状の吸収部を形成する。装着した際、違和感を感じさせないため、第１吸収部の股下中央部の幅は、約５０ｍｍ以下が好ましい。そして、起立した第２吸収部が体圧等で潰れないようにするために、第１吸収部の股下中央部に加圧剛性の高い層を配置するとよい。体圧がかかっても約１０ｍｍ以上の厚みが残れば、第２吸収部の起立を有効的に使え、更に好ましくは、第２吸収部の高さ（幅）同等であれば、第２吸収部を潰すことはない。また、レッグ股下ギャザー１０４よりもレッグ脇部７４の引張強度が非連続的に高くなっているため、レッグ股下ギャザー１０４により起立した第２吸収部を常に引き上げる（又はつり上げる）ようになっている（図２０参照）。これらにより、Ｕ字形状を維持する。
図２１Ａ、図２１Ｂ及び図２１Ｃにこのパンツの着用状態を示す。図２１Ａでは、通常の立っている体勢での本実施例のパンツの状態を示している。第１吸収部３８は、陰部３６に密着している。この状態を拡大したのが図２１Ｂである。図中のサイド１０８は、第２吸収部の外側を示している。図２１Ｃは、足の動かした時の状態を示し、ここでは開脚した状態を示している。この図からわかるように、図中のサイド１０８は、開脚したときに角度が広がり、第１吸収部３８は股間に密着し、常に排尿口に吸収面が存在する。このように、開脚や片足上げなどのような動きにより股間幅が変化しても、レッグ股下ギャザー１０４やレッグ脇部７４が常に足ぐり周りに存在し動きに応じて、第２吸収部の起立角度を変化させるので、股下には常に一定の吸収容積が確保され、また、隙間が発生することがない（図２１Ａ，図２１Ｂ及び図２１Ｃ）。このような構成としたために、股下部のフィット性を高めながら吸収力を低下させることなく股下部からの漏れを防止できる。また、足の動きや姿勢によっても任意の吸収部位形状を維持し、一定の吸収容積を確保できる。更に、吸収面が常に股間をカバーするように存在し、股間に密着することができる。
以上のように、本発明の吸収性物品では、身体に当接して体液等を効果的に吸収するために、吸収体とそれを被覆するシート部材とを含む吸収性物品に更に順応構造体を前記吸収体の身体側に配置させたので、身体と吸収性物品との間に隙間ができにくく、効果的に吸収することができる。また、この順応構造体は、柔軟な小包体に粒状要素をゆるく充填したため、微妙な身体の凹凸に対応して変形することができる。さらに、この吸収性物品をパンツ型オムツのようなものに適用すれば、好適に漏れが殆どないオムツを提供することができる。このようなオムツに、レッグ股下ギャザー部の弾性とレッグ脇部の弾性を調整することにより、また、吸収性物品の着用者の立場から見て左右方向において中央部の吸収体の剛性を、そのサイドの吸収体の剛性に比べて高くすることにより、オムツを着用した時に船底状態となるような、断面コの字（又はコップ）形状とすることができる。このため、着用者の座位を含めた体勢に対応して、吸収性物品の中央吸収部位排尿口に密着させることができる。特に座位の場合、体圧により吸収性物品が押しつぶされないような粒状要素を、上記順応構造体に充填することが、この断面コの字（又はコップ）形状の特性を生かすのには好ましい。Next, examples of absorbent articles and the like according to the present invention will be described with reference to the drawings. In these examples, only specific dimensions, materials, structures, and configurations are given as examples. However, the present invention is not limited to these examples.
[Composite Sanitary Product of First Embodiment]
First, the basic configuration of the composite sanitary product of the first embodiment will be described. FIG. 1A shows a substantially central cross section of the absorbent article according to the first embodiment.
The absorbent article 10 which is 1st Embodiment has the cross-sectional shape of the top hat with a low height. At the top, a top sheet 12 which is one of the embodiments corresponding to the sheet member, and then a granular element (or packing material) 16 covered (or included) in a parcel (or packing cover material) 18. The first absorbent body 20 is disposed under the conforming structure body 24, and the wide second absorbent body 22 is disposed below the first absorbent body 20 in a rectangular shape. The second absorbent body 22 extends to the collar portion of the top hat cross-sectional shape, and an assembly in which the conforming structure 24 and the first absorbent body 20 are stacked is shown in the drawing. It is designed to be placed at the center of the top. Under the second absorbent body 22, the back sheet 14 is arranged so that the entire second absorbent body 22 is placed thereon. The top parcel surface is in contact with the body via the top sheet 12, and this side is the aforementioned body side, and the top parcel surface constitutes the contact surface 19 of the conforming structure 24. If the absorbent article is divided into the body side and the non-body side, it can be seen that the conforming structure 24 is thus arranged on the body side of the absorbent article 10. The top sheet 12 covers the whole from the top as described above, but is flexible and easily deformed. In particular, the portion in contact with the contact surface is deformed corresponding to the outer shape of the genital area of the wearer or the like that comes into contact. The Therefore, the top sheet 12 has a step shape in which a convex portion is provided at the center along the upper contour line of the above-described top hat cross-sectional shape. The top sheet 12 and the back sheet 14 are joined at the joining portion 15, and body fluid and the like leaking from the second absorbent body 22 can be prevented from leaking out of the absorbent article 10. This joining is possible by hot melt or other adhesion.
FIG. 1B shows a plan view of the absorbent article 10 (however, the top sheet 12 covers the whole and is displayed in a state where the top sheet 12 is seen through). The conforming structure 24 covered with the top sheet 12 (in FIG. 1B covers the entire conforming structure 24 and the like and is displayed in a transparent state of the top sheet) is an abbreviation of the absorbent article 10 in FIG. 1B. It is located in the center and is arranged in such a manner that the width extending in the direction corresponding to the left and right direction as viewed from the wearer is narrower than the length extending in the front and rear direction as viewed from the wearer. There is a front portion 26 of the second absorber 22 in front of the conforming structure 24 (upper side in the drawing), and a rear portion 27 of the second absorber 22 in the rear (lower side in the drawing). The side part 28 of the 2nd absorber 22 is arrange | positioned. Such division can be performed by a slit or the like (not shown in FIG. 1A) in the second absorber 22.
The top sheet 12 is made of a through-air nonwoven fabric made of hydrophilic fibers of PE / PET, PE / PP, and PP / PP, and its basis weight is 26 g / m. ² It is. The back sheet 14 is made of PE film, and its basis weight is 22 g / m. ² It is. The conforming structure 24 is moisture permeable and hydrophobic, has a width of about 35 mm, a length of about 170 mm, and a thickness of about 15 mm. The conforming structure 24 can be disposed on the entire surface of the absorber, but more preferably can be effectively used in the vicinity of the urination port or in a portion where liquid penetration is hindered by pressure. Further, considering the uncomfortable feeling and the like, the width of the conforming structure 24 corresponding to the width direction of the absorbent article 10 is preferably about 30 to about 50 mm, and the length is preferably about 100 to about 200 mm. Further, the thickness is preferably about 5 to about 30 mm, and more preferably about 10 to about 20 mm. This is because if the size is too large, the uncomfortable feeling is remarkably increased. Here, the function of the conforming structure 24 is not only flexibly deformed in accordance with the contacted outer shape, but also sufficiently diffuses body fluid entering from the contact surface and permeates it to the absorber below it. Includes functions to do. In addition, this diffusion limits the speed at which the body fluid or the like permeates to the absorber underneath.
The method for paving the granular element 16 of the conforming structure 24 to the parcel 18 will be described with reference to the case of this embodiment. A through-air nonwoven fabric of the parcel 18 is prepared with a predetermined size, and at least a part is left to form a bag-like shape. The granular element 16 is packed from the remaining part into the bag shape. As the granular element 16, for example, PP pellets and foam beads are preferably used. In this example, 3000 g / m ² PP pellets and 200 g / m ² Polystyrene foam beads were used. The average diameter of these elements was about 4 mm. Finally, the remaining part is closed and joined to complete the conforming structure 24. The bag shape of the parcel 18 can be created so as to wrap one bag from one sheet as in the case of the present embodiment, and a hemisphere and a semi-elliptical sphere are formed on each of the two sheets. Even if they are joined, a plurality of sheets such as three sheets or four sheets can be joined together to form.
The granular elements 16 used in this example are about 5 mm of particulate matter with little compression deformation, and each is independent, and can be moved inside the parcel by pressurization from the outside of the parcel 18. is there. The type and shape of the beads to be used are preferably selected in consideration of various necessary conditions. For example, polyolefin-based or styrene-based pellets, hollow beads, foam beads, and the like can be suitably used. The weight per unit area varies greatly depending on the specific gravity of the raw material and is not considered to be easily limited. However, a preferable range can be selected using the above-described marginal space ratio or packing ratio. The size of the beads is preferably about 1 to about 10 mm, more preferably about 5 mm. It should be determined according to the required flexibility, adaptability and diffusivity, but the bead size does not necessarily need to be uniform, and it is possible to create a density gradient by changing the material. is there. It is possible to add a deodorizing function, an antibacterial function, and the like to the beads by performing a surface treatment of the beads and appropriately selecting a raw material of the beads.
When the absorbent article 10 according to the present embodiment is mounted, the granular element 16 constituting the conforming structure 24 is fluidly moved along the shape of the crotch portion due to the wearer's body pressure or the like. 10 fits closely to the body. When excrement comes out, it passes through the top sheet 12 and then diffuses the gaps between the granular elements 16 in the conforming structure 24, so that the interface between the conforming structure 24 and the first absorbent body 20 ( It passes through one of the embodiments corresponding to the second surface and reaches the absorber 20. Even if a body pressure such as a sitting position is applied, the conforming structure 24 maintains a constant volume and has almost no change in density. Moreover, since the pressure applied to the absorbers 20 and 22 can be dispersed, there is an advantage that the absorption capacity of the absorbers 20 and 22 can be hardly affected by the pressurization. Since it has the above configuration, when the absorbent article 10 of this embodiment is mounted, it can fit along the crotch shape and can be in close contact with the body. In addition, even when pressure is applied from various directions, the conforming structure 24 has an advantage of being excellent in instantaneous absorbability because it maintains a constant volume. Furthermore, since there is almost no density change, there is also an advantage that the absorption performance is hardly affected by the posture.
Here, specific dimensions and the like of the conforming structure 24 will be described with reference to the physical characteristics of the woman included in the wearer. When the wearer wears the conforming structure 24, the conforming structure 24 extends from the vicinity of the start of the laceration to the vicinity of the anus, responds (or adapts) to the fine irregularities of the female crotch part, fills the gap, and the urination mouth or vagina It is always in close contact with the mouth and allows fluids such as body fluids to permeate and be guided to the central absorbent body. In order to fulfill such a function, the conforming structure 24 of the present embodiment may have the following dimensions in addition to the dimensions described above. That is, the length is about 170 mm, the width is about 40 mm, and the thickness is about 15 mm. This is because the average physical characteristics of a woman are about 100 to about 140 mm from the anterior labia to the anus, about 50 mm from the urethral orifice to the posterior cleft, and about 250 mm from the anterior labia to the tailbone. is there. Here, the length of the conforming structure 24 is about 170 mm. However, if the length is shorter than about 50 mm, for example, the length is not enough to fill the gap. Conversely, if the length is longer than about 250 mm, the wearer feels uncomfortable. It is thought that you will feel. The average female crotch width is about 30 mm at the shortest part and about 90 mm at the maximum part. Therefore, although the width of the conforming structure 24 is about 40 mm, if it is shorter than about 10 mm, the gap cannot be sufficiently filled, and if it is longer than 100 mm, a sense of incongruity occurs. In addition, since the pubic depth of the average woman is about 5 to about 20 mm, the thickness of the conforming structure 24 is about 15 mm, but if this is thinner than about 5 mm, the gap cannot be sufficiently filled, If it exceeds about 30 mm, it is considered that the uncomfortable feeling is remarkably increased.
Here, as an example, the case of the conforming structure 24 having a width of about 50 mm and a length of about 170 mm will be taken, and for example, a case where beads having a diameter of 6 mm or 3 mm are packed as contents will be described. Table 1 below summarizes the results such as the filling amount of beads and the resulting marginal space ratio.

In Table 1, the preference of the marginal space ratio is evaluated by circles, triangles, crosses and the like. This evaluation can be considered as an absolute scale within the scope of the present embodiment, but when evaluated under various conditions, the absolute values do not always match. Therefore, it is reasonable to consider the “upper limit” and “lower limit” in the table as approximate guidelines. Rather, relative relationships can be emphasized as follows. Since Example 1-3 has a considerably small marginal space ratio (a considerably large packing ratio), Example 1-2 is preferable to Example 1-3. Moreover, since Example 1-4 has a considerably large marginal space ratio (a considerably small packing ratio), Example 1-5 is preferable to Example 1-4. Similarly, since Example 1-8 has a relatively small marginal space ratio (relatively large packing ratio), Example 1-7 is preferable to Example 1-8. In addition, since Example 1-3 has a smaller marginal space ratio (a larger packing ratio), Example 1-8 is considered preferable to Example 1-3. Even if it is an approximate standard in this way, it is considered possible to compare the preference of the marginal space ratio even when the beads have different diameters.
2A and 2B schematically show the shape of the female crotch. FIG. 2A shows a cross-sectional shape at a substantially central portion in the left-right direction of the female body. In this figure, 202 indicates the navel. The pubic portion, which is the front portion A, has a gentle bowl-like shape, and it seems that there is almost no pressure from the side. The vaginal opening at site B is slightly curved toward the body (upper side in the figure), and the pressure from the side is most applied here. Therefore, in this portion, when the conforming structure 24 is convex upward at the center, it can come into contact with the vaginal opening. The part C is a part of the buttocks, and there is little pressure from the side, and a crack of the buttocks starts. In FIG. 2B, the lower view which looked up at the crotch from the bottom is shown. It turns out that the above-mentioned site | part A, site | part B, and site | part C are located in order in the approximate center. The ellipses on both sides are both feet 210.
3A, 3B, 3C, 3D and 3E show examples in which the granular elements 16 of the conforming structure 24 are packed into the parcel 18 in various forms. For example, the parcel 18 need only have liquid permeability on the upper and lower surfaces of the conforming structure 24. As shown in FIG. 3A, the flow of the liquid can be controlled in the vertical direction by making the side surface 18b impermeable to liquid. This side surface 18b is one of the embodiments corresponding to the above-mentioned third surface. Here, the upper surface 18a and the lower surface 18c in which the film is opened can be combined with the non-opened side surface 18b. In FIG. 3A, through holes are formed in the upper surface 18a and the lower surface 18c of the parcel. Therefore, even if the upper surface 18a and the lower surface 18c of the parcel are liquid-impermeable, the liquid can be transmitted.
FIG. 3B also shows a first parcel 18d having a top hat cross-sectional shape with a slightly enlarged top, and a second parcel that covers the brim corresponding part and closes the opening of the parcel 18d. The granular element 16 is wrapped by the body 18e. A hydrophobic sheet 17 (corresponding to a third parcel) is disposed on the side surfaces of these main parts. These sheets 17, 18d, and 18e can be considered as a package, and the hydrophobic sheet 17 is impermeable to the side surface (one of the embodiments corresponding to the third surface) of the package. Functions will be added. Since the cross-sectional shape of the first parcel 18d becomes narrower as it goes downward, it can be called an omega (capital) shape in a broad sense. The parcels 18d, 18e may be liquid permeable.
FIG. 3C is a cross-sectional triangle with the bottom side down by a fourth parcel 18f having a shape of a high mountain at the center in the width direction and a fifth parcel 18g extending flat at a location corresponding to the base. It is possible to define a space having the shape of The granular element 16 is included in this space, and a hydrophobic sheet 17 (corresponding to a sixth parcel) is arranged outside the fourth parcel 18f that forms both sides of a mountain shape. It may be considered that these fourth, fifth, and sixth parcels are combined to correspond to a parcel. Due to the hydrophobic sheet 17 (corresponding to the sixth parcel), the parcel of this embodiment has a function of impermeability on the side surface (one of the embodiments corresponding to the third surface). . Not only the cross-sectional shape of these embodiments, but also the cross-section of the conforming structure 24 can be an ellipse, trapezoid, or triangle. Further, the fourth parcel 18f and the fifth parcel 18g may be liquid permeable.
FIG. 3D shows one embodiment corresponding to the fact that the sheet member that covers the absorbent body also serves as the parcel of the conforming structure 24. The conforming structure 24 having the top sheet 12 on its uppermost parcel surface is composed of a part of the top sheet 12 (the top of the head) corresponding to the seventh parcel and a cup-shaped parcel 18h (corresponding to the eighth parcel). One example), a hydrophobic sheet 13 (corresponding to the ninth parcel) on its side surface, and a granular element that is a space-arranged content surrounded by the seventh and eighth parcels It consists of sixteen. Here, the hydrophobic sheet 13 extends to the side surface of the absorbent body 20, and liquid leakage on the side surface can be more effectively prevented. Thus, you may make it the top sheet 12 serve as at least one part of a package.
Incidentally, in the surface corresponding to the second surface, FIG. 3E shows a typical conforming structure 24 (from the parcel 18i and the granular element 16) in which the so-called parcel 18i has a cross-sectional shape of Ω and is packed with the granular elements 16. It is an example of the absorbent article containing a structure. The cross-sectional shape of the parcel 18i is an omega (capital letter) shape in a narrow sense. In this absorbent article, the upper part of the parcel 18i of the conforming structure 24 serves as a contact surface, and comes into contact with the wearer's genital region or the like via the contact surface contact portion of the top sheet 12. At this time, the wearer's bodily fluid or other liquid material reaches the contact surface through the contact portion, passes through the contact surface, and comes into contact with the granular element 16 that is the contents of the conforming structure 24.
FIG. 4 shows an application of the absorbent article 20 of the first embodiment to a pants-type diaper 30 integrated with a clothing material that wraps around the entire waist. The conforming structure 38 is in close contact with the wearer's genital part 36. FIG. 5 is a sheet 32 when the diaper of FIG. 4 is developed. The absorbent article 20 is affixed to the sheet | seat 32 which comprises pants shape.
[Compound Sanitary Product of Second Embodiment]
FIG. 6: shows sectional drawing which cut | disconnected the absorbent article 40 which applied the conformation structure 24 to the interlabial pad which is 2nd Embodiment in the approximate center part. Here, the interlabial pad is not in the unfolded state, but is bent or curved to represent the state at the time of wearing or just before it. The interlabial pad (one of the embodiments corresponding to the absorbent article) has a U-shaped (or U-shaped) shape with a left opening in the cross section, and the right side is the body side It becomes. A conforming structure 24 composed of the top sheet 12 and the granular element 16 wrapped in the parcel 18 is fixed at a position closest to the body side. Therefore, the top sheet 12 also serves as a part of the parcel 18 of the conforming structure 24. At this time, the outer surface curved so as to protrude to the right corresponds to the contact surface 19, and in this embodiment, the parcel 18 is disposed on the contact surface 19 and can directly contact the shadow or the like. The contact surface 19 of the conforming structure 24 is deformed by the contact according to the shape of the shadow or the like. Such an absorber 22 is disposed so as to be sandwiched between the top sheet 12 and the back sheet 14. The top sheet 12 and the back sheet 14 are connected by a joint 15. The materials and characteristics of these components are the same as those in the first embodiment.
FIG. 7 is a plan view when the interlabial pad folded in two at the center line is developed. The boundary 42 between the conforming structure 24 and the top sheet 12 in the periphery is represented in an elliptical shape.
[Compound Sanitary Product of Third Embodiment]
8 and 9 show a pant-type diaper that is the third embodiment of the present invention. FIG. 8 shows a substantially central cross section (XX ′ cross section in FIG. 9) of the pant-type diaper 50. The top sheet 12 covers the entire top surface, and in FIG. 9, the conforming structure 24 in which the granular element 16 is wrapped with the parcel 18 just below the top sheet 12 at a substantially central position in the left-right direction is substantially rectangular in cross section. A central convex part of a so-called podium shape having a convex part in the center is formed. Absorbers 23 having three rectangular cross-sections are arranged side by side at substantially the same height to form the base portion of the podium shape. These absorbers 23 are divided into a central central absorber and side absorbers on both sides thereof. The back sheet 14 is disposed below these absorbers 23, and the elastic bodies 56 are disposed below the joint portions 52 (joining the top sheet 12 and the back sheet 14) on both sides. Under these elastic bodies 56, a parcel sheet 54 is disposed.
FIG. 9 shows the pants-type diaper 50 opened and developed. 9, vertically long adhesive portions 58 extending in the vertical direction in the figure are arranged on both sides of the front sheet 66 on the upper side of the absorbent article 20 (main part of what is shown in FIG. 8), and the lower side of the absorbent article Adhesive portions 60 that extend vertically are disposed on both sides of the rear seat 68. These adhering portions 58 and 60 constitute a pair of adhering portions on the right side or the left side, and are known techniques such as hot melt so as to form a three-dimensional shape of the pants from the unfolded state shown in FIG. Can be joined. In a substantially central part of the diaper, a conforming structure 24 is arranged narrowly under the top sheet 12, and a water absorbing / retaining layer composed of three absorbent bodies 23 is arranged on the lower side thereof. 8, the elastic body 56 is disposed between the back sheet 14 and the parcel sheet 54 so as to be in close contact with the wearer's foot and less leaked. ing. Further, the rear seat 68 has elastic portions in which elastic bodies 62 are sparsely and evenly arranged on both sides except for a substantially central portion in the left-right direction in FIG. An elastic part in which the body 64 is arranged is provided.
[Composite Sanitary Product of Fourth Embodiment]
FIG.10 and FIG.11 has shown the precursor 70 of the underpants type diaper which is the 4th Embodiment of this invention. This precursor is integrated with a body sheet (outer) and assembled into a pants-type disposable diaper having a waist opening and a pair of leg openings. FIG. 10 shows a diaper cross section (XX ′ cross section in FIG. 11) in which an absorbent article (main part of the cross section shown in FIG. 10) is disposed at the substantially central portion thereof. As in FIG. 8, the cross-sectional shape is a so-called podium with a convex portion at the center, and the top sheet 12 covers the entire upper surface of the absorbent article from above, and the granular elements 16 are packaged underneath. A conforming structure 24 formed by wrapping in 18 is disposed, and an absorber 22 that is not completely separated is disposed under the conforming structure 24. The back sheet 14 is disposed under the absorber 22, and the elastic bodies 71 are disposed on the respective sides under the side sheets 73 extending on both sides. Below that, a parcel sheet 54 is arranged.
FIG. 11 is a plan view of the pant-type diaper precursor 70 as seen from above. In the absorbent article, a narrow and conformable structure 24 is arranged in the front-rear direction at a substantially central part, and a front absorbent body 26 (first absorbent part) is disposed on the lower side of the absorbent article in the figure and on the upper side in the figure. The rear absorbent body 27 (first absorbent section) is disposed on both sides, and the side absorbent bodies 28 (second absorbent section) are disposed on both sides thereof. Below the curved portions on both sides is a leg crotch gather portion 72, on which an elastic body 71 is disposed. Also, leg side portions 74 are arranged above the curved portions on both sides. In the figure, there is a rear seat 68 on the upper side of the rear absorbent body 27, and on both sides of the central portion (without elastic body) there are elastic portions provided with elastic bodies 62 extending substantially horizontally to both side ends in the drawing. . At the upper end of the rear seat 68, there is an elastic portion in which an elastic body 64 is disposed substantially horizontally in the figure.
The first absorbent portion can be composed of at least one layer, and the conforming structure 24 in the crotch center portion has a thickness of about 10 mm or more. Therefore, a constant thickness can be maintained with respect to pressure. Further, the width of the conforming structure 24 at the crotch center is about 50 mm or less, and it is preferable that the entire structure is an hourglass type (or dumbbell type). The second absorption part is disposed in a pair on both sides of the adaptation structure 24. The second absorption part can be integrated with the first absorption part, or can be divided and independent. When the pant-type diaper precursor 70 is assembled into a diaper and worn, these absorbers often exhibit a bottom shape. The leg crotch gathers portion 72 is disposed on the curved end portion on the front side of the side absorbent body 28. Here, after the one or more elastic bodies 71 are pasted in an expanded state, By gathering, gathers are formed. The leg side parts 74 are arranged substantially continuously around the leg joints together with the leg crotch gathers part 72. The leg side portion 74 can be formed by sticking a stretchable elastic member to a stretchable (or stretchable) sheet in a non-stretched state.
[Compound Sanitary Goods of Fifth Embodiment]
12 and 13 show another pant-type diaper 80 according to the fifth embodiment of the present invention. In the developed view of FIG. 13, this pant diaper is obtained by hot-melting the adhesive portions 58 on both sides of the front sheet 66 on the lower side in the drawing and the adhesive portions 60 on both sides of the rear seat 68 located on the upper side. The pants-type diaper 80 having a waist opening and a pair of leg openings is obtained by bonding by a known method such as the above.
FIG. 12 shows a cross section (XX ′ cross section in FIG. 13) of a pant-type diaper in which an absorbent article (main part shown in cross section in FIG. 12) is arranged in the substantially central part. In this figure, from the top, the top sheet 12 covers the entire top surface of the absorbent article, below which is provided a conforming structure 24 formed by wrapping the granular element 16 in a parcel 18, below it. Three divided absorbers 23 are arranged side by side in a state where the central absorber 23 is placed almost directly below the conforming structure 24. The back sheet 14 is disposed under the absorber 23, and the elastic bodies 82 are disposed on both sides under the side sheet 83 extending on both sides. Below that, another elastic body 81 is arranged on both sides.
FIG. 13 is a plan view of the pant-type diaper 80 precursor as viewed from above. A narrow and conformable structural body 24 is arranged in the front and rear direction in the center, and in the figure there is a front absorbent body 26 (first absorbent section) below and a rear absorbent body 27 (first absorbent section) thereabove. However, side absorbers 28 (second absorbers) are disposed on both sides thereof. There are leg crotch gathers 87 at the curved portions on both sides, and an elastic body 81 is disposed there. Also, leg side portions 74 are arranged above the curved portions on both sides. In this pant-type diaper 80, further, an absorber gather 85 is arranged along both sides of the absorbent article, and has a shape as described below. There is a rear seat 68 on the upper side of the rear absorber 27 and has elastic portions on both sides with elastic bodies 62 extending on both sides thereof. At the upper end of the rear seat 68, there is an elastic part in which an elastic body 64 is disposed. A front seat 66 is provided below the front absorbent body 26 and has elastic portions on both sides with elastic bodies 62 extending on both sides thereof.
When the bonding portions 58 and 60 in FIG. 13 are bonded and the assembly of the pant-type diaper 80 is started, the second absorption portion rises by being pulled along with the contraction of the absorber gathers 85. This is the same operation as that of the leg crotch gathering portion 72 of the fourth embodiment. However, the leg crotch gather part 72 is not collinear with the circumference of the undergarment in the direction in which the elastic body is arranged (extended). Accordingly, since the two pulling forces act separately from each other, the absorbent body gather 85 only needs to exhibit a force that is reduced by the amount of force that should act on the leg crotch gather part, compared to the leg crotch gather part 72. It will be. Therefore, the elastic body 82 constituting the absorber gathers 85 can reduce damage given to the function of the elastic body due to use and the like, and can reduce the gathering of the skin. In this embodiment, the pants-type diaper is taken as an example. However, an open-type diaper may be used, and further, the pants-type diaper may be applied as a pad with an undergarment that is not integrated with the outer (garment sheet). In addition, a combination of a pants-type diaper and a pad is possible by making at least a part of the first absorption part independent as a pad. Furthermore, a combination of textile shorts and a pad is possible.
[Composite Sanitary Product of Sixth Embodiment]
14 to 16 show a sixth embodiment according to the present invention. This is a shorts-type diaper 90 without a locking part to which an absorbent article (the main part shown in cross section in FIG. 14) is applied. FIG. 14 shows a substantially central cross section (only the central portion) with respect to the wearer. From the top in the figure, the top sheet 12 covering the upper surface of the absorbent article, the conforming structure 24 in which the granular element 16 is wrapped by the parcel 18 under the top sheet 12, the absorber 22 spreads below it, and the bottom A backsheet 14 is disposed. The sheet 92 on which the absorbent article is placed extends to the side and ends at the bottom. An elastic body 94 is disposed below the side portion to improve adhesion to the foot and prevent leakage. Further below that, a body sheet 96 serving as a minimum package is arranged.
FIG. 15 is a plan view in which a shorts-type diaper 90 having no locking portion is expanded (however, since the top sheet 12 covers the whole, the top sheet 12 is shown in a see-through state). In the body sheet, elastic bodies 62 and 64 are arranged along the periphery. Since these elastic bodies 62 and 64 are affixed to the body sheet in the stretched state, they become pants when loosened. This state is shown in FIG. It can be seen that the waists of the pants are formed by the elastic bodies 64 and 62. There is a gather made of an elastic body 94 around the undergarment, and the adaptation structure 24 and the absorber 25 visible from the undergarment can be seen in a stacked state.
[Compound Sanitary Product of Seventh Embodiment]
17 to 19 show a seventh embodiment according to the present invention. This shows another pant diaper 100. The pants-type diaper 100 is formed by joining the adhesive portions 58 on both sides of the lower front sheet 66 and the adhesive portions 60 on both sides of the rear sheet 68 by a known method such as hot melt. It becomes the underpants type diaper 100 which has a waist opening and a pair of leg opening.
FIG. 17 shows a cross section (XX 'cross section of FIG. 19) of a diaper in which an absorbent article (main part of the cross section shown in FIG. 17) is arranged at the substantially central portion. In this figure, from the top, the top sheet 12 covers the entire top surface of the absorbent article, below which is provided a conforming structure 24 formed by wrapping the granular element 16 in a parcel 18, below it. The divided absorbers 20 are arranged with substantially the same width. Below that, an integral absorbent body 22 that is divided by the slits 21 is disposed so as to spread laterally. The back sheet 14 is disposed under the absorbent body 22, and the elastic bodies 82 are disposed on both sides under the side sheet 104 (or the side seed of the leg crotch gathers portion) that extends on both sides. Below that, another elastic body 81 is arranged on both sides so as to be sewn into the outermost layer sheet 102. Here, FIG. 19 is a plan view of the pant-type diaper 100 unfolded and viewed from above. When viewed in plan in this plan view, the central conformation structure 24 and the absorbent bodies 20 and 22 are included. A part including the absorber 22 cut by the slit 21 on both sides of the part is referred to as a second absorption part, and a part including the other absorber is referred to as a first absorption part. A narrow and conformable structural body 24 is arranged in the center in the front-rear direction at the center, with the front absorber 26 (first absorber) on the lower side and the rear absorber 27 (first absorber) on the upper side in the figure. However, side absorbers 28 (second absorbers) are arranged on both sides in a state of being separated by the slits 21. There are leg crotch gathers 87 at the curved portions on both sides, and an elastic body 81 is disposed there. Also, leg side portions 74 are arranged above the curved portions on both sides. There is a rear seat 68 on the upper side of the rear absorbent body 27, and an elastic portion provided with elastic bodies 62 extending on both sides thereof is provided on both sides of the central portion (no elastic body) of the rear seat 68. At the upper end of the rear seat 68, there is an elastic part in which an elastic body 64 is disposed. A front seat 66 is provided below the front absorbent body 26 and has elastic portions on both sides with elastic bodies 62 extending on both sides thereof.
Here, as the top sheet 12, a sheet having liquid permeability can be suitably used. For example, it can be selected from hydrophilic nonwoven fabrics made of synthetic fibers such as PE / PP, PE / PET, and PE / PET. The back sheet 14 may be a liquid impermeable plastic film or a laminate sheet. A hydrophobic sheet can be used for the outermost layer sheet 102. For example, it can be selected from a spunbond PP or meltblown nonwoven fabric, a spunlace nonwoven fabric composed of composite fibers of PP and PET, a composite sheet of film and nonwoven fabric, and the like. If it has a predetermined durability and it can, it is preferable that the appearance and the touch are good, and it is more preferable if a color and a pattern can be given. The side sheet 104 is a hydrophobic sheet and can be selected from polyolefin-based spunbond / SMS nonwoven fabrics and the like. The SMS non-woven fabric refers to a non-woven fabric having a three-layer structure in which a micro-web made of PP non-woven fabric is sandwiched between spun bonds made of PP non-woven fabric.
In the absorbent bodies 20 and 22, the absorbent core can be made of hydrophilic fiber, SAP, or a composite sheet thereof. The elastic bodies 81 and 82 can be selected from elastic yarns or sheets made of natural rubber, synthetic rubber, or thermoplastic synthetic resin. The granular element 16 of the conforming structure 24 is composed of many beads made of polyolefin or urethane foam. The average size of the beads is about 1 to about 10 mm. If the size of the beads is too small, the liquid permeability is inferior, and if the size is too large, the bead feels rugged and the whole feels hard. The beads are formed in a bag-like nonwoven fabric or a permeable container. The conforming structure 24 has a basis weight of about 100 to about 500 g / m. ² The thickness is about 10 to about 20 mm, and preferably about 7 mm or more is maintained even when body pressure is applied. The width is about 30 to about 50 mm, and the length is about 180 mm.
In FIG. 18, sectional drawing (XX 'equivalent part of FIG. 19) in the state with which the underpants type diaper of the present Example was worn is shown. The first absorbent portion shown in the figure is, from the top, the conformable structure 24 comprising the top sheet 12, the parcel 18 and the granular elements 16 that are the contents thereof, the first absorbent body 20, and the second absorbent body. 22, the back sheet 14, and the outermost layer sheet 102. The absorber can be composed of one or more layers. Similarly, the second absorbent portion is composed of the top sheet 12, the second absorbent body 22, the back sheet 14, and the outermost layer sheet 102 from above. Each component of the first absorption part and each component of the second absorption part may be made of the same material structure, completely different material structure, or in the middle Good. The first absorbent part in which the conforming structure 24 is arranged has a larger thickness and higher rigidity than the second absorbent part in which the adaptable structure 24 is not arranged. The leg crotch gather part 104 is formed by sticking an elastic body 82 in an expanded state between the outermost layer sheet 102 and the leg crotch gather part 104, and the gather is formed by loosening the extended state in a pant assembly process later. . When the elastic body 82 is in the extended state, it is preferably extended from about 1.5 times to about 3 times as compared with the free state. This is because if the ratio is less than about 1.5 times, the second absorption part is not sufficiently raised, and if the ratio exceeds about 3 times, the contact with the skin becomes tight. The side sheet 104 may wrap the elastic body 82 at a joint portion of the side end (a part where the side sheet 104 is bonded to the outermost layer sheet 102 by a method such as hot melt). It can also be located inside. Due to the leg crotch gather part 104 and the rigidity difference between the first absorbent part and the second absorbent part, the second absorbent part rises on both sides of the first absorbent part, and shows a cross-sectional cup shape (or a U-shape) (FIG. 18). . Moreover, since the height is maintained when the 1st absorption part maintains fixed thickness at the time of load, the standing of a 2nd absorption part is maintained.
The operation of this embodiment will be described with reference to FIGS. When assembling the pant-type diaper of the present embodiment, the leg inseam gather 104 contracts (or contracts) and exerts a tensile force, so that the second absorbent part whose bending rigidity is lower than the first absorbent part is on both sides of the first absorbent part. To stand up. In FIG. 19, the elastic body in the stretched state is arranged substantially vertically in the figure at a position separated by a predetermined distance from the central first absorption portion. When the stretched state is relaxed, Whereas the vertically long first absorbing portion tries to maintain its shape, the portion where the elastic body is disposed contracts. For this reason, it is because this 1st absorption part becomes comparatively vertically long, and becomes a so-called ship bottom shape in order to eliminate excess length. That is, in the ship bottom shape, the standing side surfaces are arranged on both sides of the ship bottom. At this time, it is preferable that the absorber of the rising second absorbing portion 28 contracts or curves so as to match the contracted portion. In order to promote the standing of the second absorption part, it is preferable to make a difference in rigidity between the first absorption part and the second absorption part. For example, the thickness can be greatly changed, a slit can be inserted, or the slit can be cut off. Thereby, a U-shaped absorption part is formed in the crotch part. The width of the crotch center part of the first absorbent part is preferably about 50 mm or less so as not to feel uncomfortable when worn. And in order to prevent the standing 2nd absorption part from being crushed by body pressure etc., it is good to arrange | position a layer with high pressure rigidity in the crotch center part of a 1st absorption part. If the thickness of about 10 mm or more remains even if the body pressure is applied, the standing of the second absorption part can be used effectively, and more preferably, if the height (width) of the second absorption part is equal, the second absorption part Will not crush. Further, since the tensile strength of the leg side portion 74 is discontinuously higher than that of the leg crotch gather 104, the second absorbent part standing by the leg crotch gather 104 is always pulled up (or lifted) ( FIG. 20). As a result, the U-shape is maintained.
FIG. 21A, FIG. 21B, and FIG. 21C show how the pants are worn. FIG. 21A shows the state of the pants of this embodiment in a normal standing posture. The first absorption part 38 is in close contact with the shadow 36. FIG. 21B is an enlarged view of this state. The side 108 in the figure indicates the outside of the second absorption part. FIG. 21C shows a state when the foot is moved, and here shows a state where the leg is opened. As can be seen from this figure, the angle of the side 108 in the figure is widened when the legs are opened, the first absorbent portion 38 is in close contact with the crotch, and there is always an absorption surface at the urination port. In this way, even if the crotch width changes due to movements such as opening legs or raising one leg, the leg crotch gathers 104 and the leg side parts 74 are always present around the undergrowth, and according to the movement, Since the standing angle is changed, a constant absorption volume is always secured in the crotch, and no gap is generated (FIGS. 21A, 21B, and 21C). Since it was set as such a structure, the leak from a crotch part can be prevented, without reducing an absorptive power, improving the fitting property of a crotch part. Moreover, an arbitrary absorption site shape can be maintained depending on the movement and posture of the foot, and a certain absorption volume can be secured. Further, the absorbing surface always exists so as to cover the crotch, and can adhere to the crotch.
As described above, in the absorbent article of the present invention, in order to contact the body and effectively absorb bodily fluids, etc., the conformable structure is further added to the absorbent article including the absorbent body and the sheet member covering the absorbent body. Since it arrange | positioned at the body side of the said absorber, it is hard to make a clearance gap between a body and an absorbent article, and can absorb effectively. In addition, since the conformable structure is loosely filled with a granular element in a flexible parcel, it can be deformed corresponding to subtle unevenness of the body. Furthermore, if this absorbent article is applied to a pants-type diaper, it is possible to provide a diaper that preferably has almost no leakage. By adjusting the elasticity of the leg crotch gather part and the leg side part to such a diaper, the rigidity of the absorbent body in the central part in the left-right direction as viewed from the wearer of the absorbent article, By making it higher than the rigidity of the absorbent body on the side, it is possible to obtain a U-shaped (or cup) shape in cross section so that when the diaper is worn, it becomes a ship bottom state. For this reason, it can be made to adhere to the central absorption part urination mouth of an absorptive article corresponding to the posture including a wearer's sitting position. Particularly in the sitting position, it is preferable to fill the conforming structure with a granular element that does not crush the absorbent article due to body pressure in order to take advantage of the characteristics of the U-shaped section (or cup).

FIG. 1A is a cross-sectional view of the absorbent article according to the first embodiment of the present invention.
FIG. 1B is a plan view displayed with the top sheet of the absorbent article according to the first embodiment of the present invention seen through.
FIG. 2A is a cross-sectional view schematically illustrating body features including a female groin.
FIG. 2B is a bottom view schematically showing body features including a woman's crotch.
FIG. 3A shows the conformable structure of the absorbent article according to the first embodiment of the present invention.
FIG. 3B shows the conformation structure of the absorbent article according to the first embodiment of the present invention.
FIG. 3C shows the conformation structure of the absorbent article according to the first embodiment of the present invention.
FIG. 3D shows the conformable structure of the absorbent article according to the first embodiment of the present invention.
FIG. 3E shows the conformable structure of the absorbent article according to the first embodiment of the present invention.
Drawing 4 is a figure showing the wearing situation of the absorptive article of a 1st embodiment of the present invention.
FIG. 5 shows an application example of the absorbent article according to the first embodiment of the present invention.
FIG. 6 shows a cross section of the absorbent article (interlabial product) of the second embodiment of the present invention.
FIG. 7: shows the top view of the absorbent article (interlabial product) of 2nd Embodiment of this invention.
FIG. 8 shows a cross section of the central portion of a pant-type diaper using the absorbent article according to the third embodiment of the present invention.
FIG. 9 shows a developed plan view of a pants-type diaper using the absorbent article according to the third embodiment of the present invention (a state seen through the top sheet).
FIG. 10 shows a cross section of the central portion of a pant-type diaper precursor using the absorbent article according to the fourth embodiment of the present invention.
FIG. 11: shows the expansion | deployment top view (state which saw through the top sheet) of the underpants type diaper precursor using the absorbent article which is 4th Embodiment of this invention.
FIG. 12 shows a cross section of the central part of a pant-type diaper using an absorbent article according to the fifth embodiment of the present invention.
FIG. 13: shows the expansion | deployment top view (state which saw through the top sheet) of the underpants type diaper using the absorbent article which is 5th Embodiment of this invention.
FIG. 14: shows the cross section of the center part of the underpants type diaper using the absorbent article which is 6th Embodiment of this invention.
FIG. 15: shows the expansion | deployment top view (state which saw through the top sheet) of the underpants type diaper using the absorbent article which is 6th Embodiment of this invention.
FIG. 16: shows the perspective view of the underpants type diaper using the absorbent article which is 6th Embodiment of this invention.
FIG. 17 shows a cross section of the central portion of a pant-type diaper using an absorbent article according to the seventh embodiment of the present invention.
FIG. 18: shows the cross section of the center part at the time of pants type diaper wearing using the absorbent article which is 7th Embodiment of this invention.
FIG. 19: shows the expansion | deployment top view (state which saw through the top sheet) of the underpants type diaper using the absorptive article which is a 7th embodiment of the present invention.
FIG. 20 is a perspective view showing a bottom structure of a pant-type diaper using an absorbent article according to the seventh embodiment of the present invention.
FIG. 21A shows an overall image of a pants-type diaper wearing state using the absorbent article according to the seventh embodiment of the present invention.
FIG. 21B shows an enlarged view (stationary state) of a pants-type diaper wearing state using the absorbent article according to the seventh embodiment of the present invention.
FIG. 21C shows an enlarged view of a pants-type diaper wearing state using the absorbent article according to the seventh embodiment of the present invention (a state in which the foot is moved).

Claims (10)

An absorbent article comprising: an absorber for absorbing an object to be absorbed; and a sheet member having at least a part of the permeability to the object to be absorbed and covering the absorber;
The absorbent article comprises a conforming structure having a contact surface that comes in contact with a wearer's or animal's genital area and / or its vicinity and flexibly deforms in accordance with the outer shape of the genital area and / or its vicinity. Including in a state of being placed on the body side of the article,
The conforming structure includes a flexible parcel and a granular element wrapped in the parcel with a predetermined margin space, and is arranged narrowly on the body side. Goods. The absorbent article according to claim 1, wherein at least one cross section of the parcel has an omega (Ω) shape, and the granular element is a substantially spherical object. The absorbent article according to claim 1 or 2, wherein the parcel is made of a liquid-permeable sheet material. The absorbent article according to any one of claims 1 to 3, wherein the absorbent body includes a central absorbent body and / or a side absorbent body. The absorbent article has a U-shape in its cross section, and at least a part of the elements constituting the U-shape is composed of the central absorbent body and / or the side absorbent body. 4. The absorbent article according to 4. At least a part of the parcel of the conforming structure is disposed on a third surface excluding the contact surface (first surface) and a surface (second surface) that directly or indirectly contacts the absorber. 6. The absorbent article according to claim 1, wherein at least a part of the parcel disposed on the third surface is impermeable. The absorbent article according to any one of claims 1 to 5, wherein the conforming structure has a thickness through which the object to be absorbed can pass. An absorbent body for absorbing the object to be absorbed, and a sheet member having at least a part of the permeability to the object to be absorbed and covering the absorber;
An absorbent article comprising
The absorbent article comprises a conforming structure having a contact surface that comes in contact with a wearer's or animal's genital area and / or its vicinity and flexibly deforms in accordance with the outer shape of the genital area and / or its vicinity. Including in a state of being placed on the body side of the article,
The conforming structure includes a flexible parcel and a granular element wrapped in the parcel with a predetermined margin space, and is arranged narrowly on the body side. Sanitary products including articles. An absorbent body for absorbing the object to be absorbed, and a sheet member having at least a part of the permeability to the object to be absorbed and covering the absorber;
An absorbent article comprising
The absorbent article comprises a conforming structure having a contact surface that comes in contact with a wearer's or animal's genital area and / or its vicinity and flexibly deforms in accordance with the outer shape of the genital area and / or its vicinity. Including in a state of being placed on the body side of the article,
The conforming structure includes a flexible parcel and a granular element wrapped in the parcel with a predetermined margin space, and is arranged narrowly on the body side. Underwear including articles. The underwear according to claim 9, wherein the underwear is a diaper, shorts, or pants.

Images