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JP5394909B2 - Disposable absorbent article - Google Patents

Disposable absorbent article
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JP5394909B2
JP5394909B2JP2009287813AJP2009287813AJP5394909B2JP 5394909 B2JP5394909 B2JP 5394909B2JP 2009287813 AJP2009287813 AJP 2009287813AJP 2009287813 AJP2009287813 AJP 2009287813AJP 5394909 B2JP5394909 B2JP 5394909B2
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lower layer
absorber
upper layer
absorbent body
width direction
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JP2011125537A (en
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有美子 柿沼
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Hakujuji KK
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Translated fromJapanese

本発明は、子供用、大人用或いは失禁用の使い捨て吸収性物品に関する。  The present invention relates to a disposable absorbent article for children, adults or incontinence.

従来、尿などの排泄液を吸収する使い捨て吸収性物品では、表面側に位置する液透過性の表面シートを透過した排泄液が吸収体で吸収され、裏面側に位置する液不透過性の裏面シートによって、裏面側からの排出液の漏出を防止している。  Conventionally, in a disposable absorbent article that absorbs excretory fluid such as urine, excretory fluid that has permeated through a liquid-permeable surface sheet located on the front side is absorbed by the absorber, and the liquid-impermeable back side located on the back side The sheet prevents leakage of discharged liquid from the back side.

このような使い捨て吸収性物品において、吸収体にて吸収した排泄液を拡散させて吸収体全体を有効に活用することにより、吸収力を向上させて、配設液の漏出を防止するため吸収体が、表面シート側に位置する上層吸収体と、裏面シート側に位置する下層吸収体と、これら上層吸収体と下層吸収体との間に配設された液拡散性シートとを有し、前記上層吸収体は、長手方向の一端部および他端部のいずれかに変位した位置に長手方向に沿って開口部が形成され、この開口部では、前記表面シートと前記液拡散性シートとが接合された構成が知られている(例えば、特許文献1参照。)。  In such a disposable absorbent article, the absorbent body is used to improve the absorptive power by effectively diffusing the excretory liquid absorbed by the absorbent body and effectively utilizing the entire absorbent body, thereby preventing leakage of the disposed liquid. Has an upper layer absorber positioned on the top sheet side, a lower layer absorber positioned on the back sheet side, and a liquid diffusable sheet disposed between the upper layer absorber and the lower layer absorber, The upper absorbent body is formed with an opening along the longitudinal direction at a position displaced to either one end or the other end in the longitudinal direction. In this opening, the top sheet and the liquid diffusible sheet are joined. Such a configuration is known (for example, see Patent Document 1).

特開2006−167196号公報(第3−4,7−8頁、図3)Japanese Patent Laying-Open No. 2006-167196 (pages 3-4 and 7-8, FIG. 3)

しかしながら、上述の特許文献1の構成では、上層吸収体の開口部および液拡散性シートによって、排泄液を拡散するものの、下層吸収体では、排泄液を充分に拡散できず、排泄液を効率よく吸収できない場合が考えられる。また、排泄液が、上層吸収体で拡散しやすいため、想定している上層吸収体の吸収量より排泄液の量が多い場合には、上層吸収体の広範囲にて排泄液が装着者の肌へ逆戻りしてしまう場合が考えられる。  However, in the configuration of Patent Document 1 described above, although the excretory liquid is diffused by the opening of the upper-layer absorber and the liquid diffusive sheet, the lower-layer absorber cannot sufficiently diffuse the excretion liquid, and the excretion liquid is efficiently diffused. It may be impossible to absorb. In addition, since the excretory fluid is easily diffused by the upper layer absorber, when the amount of the excretory fluid is larger than the assumed amount of absorption of the upper layer absorber, the excretion fluid is spread over the skin of the wearer over a wide range of the upper layer absorber. There is a case where it goes back to.

本発明はこのような点に鑑みなされたもので、排泄液の拡散性が良好で排泄液を効率よく吸収でき、また、装着者の肌への排泄液の逆戻りを防止できる使い捨て吸収性物品を提供することを目的とする。  DISCLOSURE OF THE INVENTION The present invention has been made in view of such points, and a disposable absorbent article that has good diffusibility of excretory fluid and can efficiently absorb excretory fluid, and can prevent the excretory fluid from returning to the wearer's skin. The purpose is to provide.

請求項1に記載された使い捨て吸収性物品は、表面側に位置する表面シートと、裏面側に位置する裏面シートと、これら表面シートと裏面シートとの間に位置する吸収体とを有する吸収性物品本体を具備し、この吸収性物品本体は、装着者の前側に配置される前側部と、装着者の股下に配置される中央部と、装着者の後側に配置される後側部とを長手方向に沿って順次備え、前記吸収体は、前記表面シート側に位置し上層開孔部が設けられた上層吸収体と、前記裏面シート側に位置し前記上層開孔部に少なくとも一部が重なった下層溝部が設けられた下層吸収体と有し、前記上層開孔部は、上層吸収体の幅方向中央に位置し、前記上層吸収体の長手方向に沿って少なくとも前記前側部から前記中央部にわたって設けられ、前記下層溝部は、下層吸収体の幅方向中央に位置し、前記下層吸収体の長手方向に沿って少なくとも前記中央部から前記後側部にわたって設けられ、少なくとも前記中央部には、前記上層開孔部と前記下層溝部とが重なって吸収体凹部が形成され、前記上層吸収体の前記上層開孔部以外の部分と前記下層溝部とが重なって通液部が前記中央部から前記後側部にわたって形成されたものである。The disposable absorbent article according to claim 1 has an absorptive material having a top sheet located on the front side, a back sheet located on the back side, and an absorber located between the top sheet and the back sheet.The absorbent article main body is provided witha front side portion disposed on the front side of the wearer, a central portion disposed on the crotch of the wearer, and a rear side portion disposed on the rear side of the wearer. sequentially provided along the longitudinal direction, the absorbent body includes an upper layerabsorber upper layer openinglocated on the topsheet side is provided, at least on the SLfront located on the back sheet side upper apertures A lower layer absorber having a partially overlapped lower layer groove, and theupper layer opening is located at the center in the width direction of the upper layer absorber, and at least the front side along the longitudinal direction of the upper layer absorber Provided from the center to the central part, the lower layer groove part, Located in the center in the width direction of the layer absorber provided across the back side from at least the central portion along the longitudinal direction of the lower absorbent body, at least in the central portion, said lower groove and said upper opening And a recess portion is formed by overlapping, and a portion other than the upper layer opening portion of the upper layer absorber and the lower layer groove portion are overlapped, and a liquid passing portion is formedfrom the central portion to the rear side portion. OhRu.

請求項に記載された使い捨て吸収性物品は、請求項1に記載された使い捨て吸収性物品において、上層開孔部は、幅方向の長さが下層溝部の幅方向の長さより長く形成され、下層溝部は、下層吸収体の長手方向の両端部より内側に位置しているものである。The disposable absorbent article according toclaim2 is the disposable absorbent article according to claim1, wherein the upper layer opening is formed such that the width in the width direction is longer than the length in the width direction of the lower layer groove. The lower layer groove is located on the inner side from both longitudinal ends of the lower layer absorber.

請求項に記載された使い捨て吸収性物品は、請求項1または2に記載された使い捨て吸収性物品において、吸収体は、上層吸収体と下層吸収体との間に通液部を覆う液透過性の上下層分離シートが設けられたものである。Disposable absorbent article according toclaim3, in a disposable absorbent article according toclaim 1or 2, absorber, liquid permeable covering the passed through portion between the upper absorbent body and the lower layer absorbent body An upper / lower layer separation sheet is provided.

請求項1に記載された発明によれば、上層吸収体に上層開孔部が設けられ、下層吸収体に下層溝部が設けられ、また、吸収体凹部および通液部が形成されたことにより、排泄液が、上層開孔部を通って上層吸収体で拡散され、吸収体凹部を通って上層開孔部から下層溝部へ移動し通液部へ流入し、この通液部を通って下層吸収体で拡散されるので、排泄液の拡散性を向上でき、排泄液を効率よく吸収できる。  According to the invention described in claim 1, the upper layer opening is provided in the upper layer absorber, the lower layer groove is provided in the lower layer absorber, and the absorber recess and liquid passing portion are formed. Exhaust fluid is diffused by the upper layer absorbent through the upper layer opening, moves through the absorber recess from the upper layer opening to the lower layer groove, flows into the liquid passage, and is absorbed by the lower layer through this liquid passage. Since it is diffused by the body, the diffusibility of the excretory fluid can be improved and the excretory fluid can be absorbed efficiently.

また、吸収体に吸収体凹部および通液部が形成されたことにより、排泄液を下側吸収体にて拡散しやすいので、下層吸収体にて排泄液を吸収しやすく、排泄液の装着者の肌への逆戻りを防止できる。  In addition, since the absorbent body is formed with the absorbent body recess and the liquid passage portion, the excretory liquid is easily diffused in the lower absorbent body, and therefore the lower layer absorbent body can easily absorb the excreted liquid, and the excretory liquid wearer Can prevent the skin from returning to the skin.

さらに、上層開孔部は、上層吸収体の幅方向中央に位置し、少なくとも前側部から中央部にわたって設けられたことにより、上層開孔部が装着者の排尿部位に対応して、排泄液が上層開孔部に流入しやすく、下層溝部は、下層吸収体の幅方向中央に位置し、少なくとも中央部から後側部にわたって設けられたことにより、通液部が少なくとも中央部から後側部に形成されて排泄液を下層吸収体の後側部に拡散しやすいので、排泄液の拡散性を向上でき、排泄液を効率よく吸収できる。Furthermore, the upper layer opening is located at the center in the width direction of the upper layer absorber, and is provided from at least the front side to the center, so that the upper layer opening corresponds to the urination site of the wearer, It is easy to flow into the upper layer opening part, and the lower layer groove part is located at the center in the width direction of the lower layer absorber and is provided from at least the central part to the rear side part, so that the liquid passing part is at least from the central part to the rear side part. The formed excretion fluid is easily diffused to the rear side of the lower layer absorber, so that the diffusibility of the excretion fluid can be improved and the excretion fluid can be efficiently absorbed.

また、吸収体は、中央部における幅方向の長さが、前側部および後側部における幅方向の長さより短く形成されたことにより、装着した際に吸収体が変形しにくいので、上層開孔部、下層溝部、吸収体凹部および通液部が潰れることを防止でき、装着した際の拡散性の低下を防止できる。  Further, the absorbent body is formed such that the length in the width direction at the center portion is shorter than the length in the width direction at the front side portion and the rear side portion, so that the absorber is not easily deformed when worn, so that the upper layer opening Part, lower layer groove part, absorber concave part and liquid passing part can be prevented from being crushed, and a decrease in diffusibility when attached can be prevented.

請求項に記載された発明によれば、上層開孔部の幅方向の長さが下層溝部の幅方向の長さより長く形成されたことにより、排泄液が上層開孔部に流入しやすいので、吸収体は、より確実に排泄液を拡散できる。According to the invention described inclaim2 , since the length in the width direction of the upper layer opening is formed longer than the length in the width direction of the lower layer groove, the excretory fluid easily flows into the upper layer opening. The absorber can diffuse the excretory fluid more reliably.

また、下層溝部が下層吸収体の長手方向の両端部より内側に位置しているので、通液部を通って拡散する排泄液が下層吸収体の長手方向の端部から流出することを防止できる。  Moreover, since the lower layer groove part is located inside the longitudinal direction both ends of the lower layer absorbent body, it is possible to prevent the excretory liquid diffusing through the liquid passing part from flowing out from the longitudinal end part of the lower layer absorbent body. .

請求項に記載された発明によれば、上層吸収体と下層吸収体との間に上下層分離シートが設けられたことにより、これら上層吸収体と下層吸収体とを分離できるので、上層吸収体が下層溝部に入り込み、吸収体凹部および通液部が潰されることを防止できる。According to the invention described inclaim3 , since the upper layer absorber and the lower layer absorber can be separated by providing the upper and lower layer separation sheets between the upper layer absorber and the lower layer absorber, the upper layer absorption It is possible to prevent the body from entering the lower layer groove portion and crushing the absorber recess and the liquid passing portion.

本発明の第1の実施の形態に使い捨て吸収性物品の一部を切り欠いて示す平面図である。It is a top view which notches and shows a part of disposable absorbent article in the 1st Embodiment of this invention.同上使い捨て吸収性物品の幅方向に沿った断面図を示し、(a)は図1のA−A断面図であり、(b)は図1のB−B断面図であり、(c)は図1のC−C断面図である。Sectional drawing along the width direction of a disposable absorbent article same as the above is shown, (a) is AA sectional drawing of FIG. 1, (b) is BB sectional drawing of FIG. 1, (c) is (c). It is CC sectional drawing of FIG.同上使い捨て吸収性物品の長手方向に沿った断面図を示し、(a)は図1のD−D断面図であり、(b)は図1のE−E断面図であり、(c)は図1のF−F断面図である。Sectional drawing along the longitudinal direction of a disposable absorbent article same as the above is shown, (a) is DD sectional drawing of FIG. 1, (b) is EE sectional drawing of FIG. 1, (c) is It is FF sectional drawing of FIG.(a)および(b)は本発明の第2の実施の形態の使い捨て吸収性物品の断面図である。(A) And (b) is sectional drawing of the disposable absorbent article of the 2nd Embodiment of this invention.(a)および(b)は本発明の第3の実施の形態の使い捨て吸収性物品の断面図である。(A) And (b) is sectional drawing of the disposable absorbent article of the 3rd Embodiment of this invention.(a)および(b)は同上使い捨て吸収性物品の断面図である。(A) And (b) is sectional drawing of a disposable absorbent article same as the above.本発明の第4の実施の形態の使い捨て吸収性物品の断面図である。It is sectional drawing of the disposable absorbent article of the 4th Embodiment of this invention.(a)ないし(c)は本発明の第5の実施の形態の使い捨て吸収性物品の平面図である。(A) thru | or (c) is a top view of the disposable absorbent article of the 5th Embodiment of this invention.本発明の第6の実施の形態の使い捨て吸収性物品の一部を切り欠いて示す平面図である。It is a top view which notches and shows a part of disposable absorbent article of the 6th Embodiment of this invention.同上使い捨て吸収性物品の断面図を示し、図9のG−G断面図である。It is sectional drawing of a disposable absorbent article same as the above, and is GG sectional drawing of FIG.本発明の第7の実施の形態の使い捨て吸収性物品の断面図である。It is sectional drawing of the disposable absorbent article of the 7th Embodiment of this invention.

以下、本発明の第1の実施の形態の構成について図1ないし図3を参照しながら詳細に説明する。  Hereinafter, the configuration of the first exemplary embodiment of the present invention will be described in detail with reference to FIGS. 1 to 3.

図1において、1は使い捨て吸収性物品を示し、この使い捨て吸収性物品1は、略矩形状の吸収性物品本体2を備えている。  In FIG. 1, reference numeral 1 denotes a disposable absorbent article, and the disposable absorbent article 1 includes a substantially rectangularabsorbent article body 2.

吸収性物品本体2は、使い捨て吸収性物品1が装着された装着状態で表面側である装着者側に位置する表面シート3と、装着状態で裏面側である装着者とは反対側の衣類側に位置する裏面シート4と、これら表面シート3と裏面シート4との間に位置する吸収体5とを有している。  Theabsorbent article body 2 includes atop sheet 3 positioned on the wearer side, which is the front side when the disposable absorbent article 1 is worn, and a clothing side opposite to the wearer, which is the back side when worn. And theabsorbent body 5 positioned between thetop sheet 3 and theback sheet 4.

また、吸収性物品本体2は、装着状態で装着者の前側である腹側に配置される前側部6と、装着状態で装着者の股下に配置される中央部7と、装着状態で装着者の後側である背側に配置される後側部8とが長手方向に沿って順次設けられている。  Moreover, the absorbent articlemain body 2 includes a front side portion 6 that is disposed on the abdomen that is the front side of the wearer in the mounted state, acentral portion 7 that is disposed on the inseam of the wearer in the mounted state, and a wearer in the mounted state. Therear side part 8 arrange | positioned at the back side which is a back side is provided in order along the longitudinal direction.

表面シート3は、例えば尿などの液状の排泄液を透過可能な略矩形状の液透過性シートであり、また、裏面シート4は、排泄液が透過しない液不透過性(疎水性)シートであって、これら表面シート3および裏面シート4は、例えば織布、不織布、フィルムおよび合成繊維などのシート材にて適宜形成される。  Thetop sheet 3 is a substantially rectangular liquid-permeable sheet that can transmit liquid excretion liquid such as urine, for example, and theback sheet 4 is a liquid-impermeable (hydrophobic) sheet that does not allow excretion liquid to permeate. Thus, thetop sheet 3 and theback sheet 4 are appropriately formed of a sheet material such as a woven fabric, a nonwoven fabric, a film, and a synthetic fiber.

また、表面シート3と裏面シート4とは、吸収体5を挟むように周縁部が例えば接着剤などにて接合されて吸収体5が封着されており、装着者の排泄液が表面シート3を透過して吸収体5に吸収され、裏面シート4にて吸収体5から裏面側への排泄液の漏出を防止する。  In addition, thetop sheet 3 and theback sheet 4 are joined to each other with, for example, an adhesive so that theabsorbent body 5 is sealed so that theabsorbent body 5 is sandwiched between them. And is absorbed by theabsorbent body 5, and theback sheet 4 prevents leakage of excretory fluid from theabsorbent body 5 to the back surface side.

吸収体5は、表面シート3側に位置する上層吸収体11と、裏面シート4側に位置する下層吸収体12とを有している。これら上層吸収体11および下層吸収体12は、例えばパルプなどの吸収性繊維および高分子吸収材などから形成されたり、吸収体5の保形または吸収拡散等のためにティッシュなどのクレープ紙でパルプを挟んで形成されたりするもので、排泄液を十分に吸収できる。  Theabsorber 5 includes an upper layer absorber 11 located on thetop sheet 3 side and a lower layer absorber 12 located on theback sheet 4 side. The upper layerabsorbent body 11 and the lower layerabsorbent body 12 are formed of absorbent fibers such as pulp and polymer absorbent material, for example, or are made of crepe paper such as tissue for shape retention or absorption diffusion of theabsorbent body 5. It is formed with a gap between them and can fully absorb the excretory fluid.

下層吸収体12は、吸収性物品本体2の中央部7における幅方向の長さが前側部6および後側部8の幅方向の長さより短く、中央部7が幅方向に円弧凹状に切り欠かれた略砂時計形状に形成されている。また、下層吸収体12の幅方向の長さは、表面シート3および裏面シート4の幅方向の長さより短く形成され、下層吸収体12の長手方向の長さは、表面シート3および裏面シート4の長手方向の長さより短く形成されている。  The lower layerabsorbent body 12 has a length in the width direction at thecenter portion 7 of theabsorbent article body 2 shorter than the length in the width direction of the front side portion 6 and therear side portion 8, and thecenter portion 7 is notched in an arc concave shape in the width direction. It is formed in a substantially hourglass shape. In addition, the length in the width direction of the lower layerabsorbent body 12 is shorter than the length in the width direction of thetop sheet 3 and theback sheet 4, and the length in the longitudinal direction of the lower layerabsorbent body 12 is thetop sheet 3 and theback sheet 4. It is formed shorter than the length in the longitudinal direction.

上層吸収体11は、略矩形状であり、長手方向の長さが下層吸収体12の長手方向の長さと略同一に形成され、幅方向の長さが中央部7における下層吸収体12の幅方向の長さより短く形成されている。  The upper layerabsorbent body 11 has a substantially rectangular shape, the length in the longitudinal direction is substantially the same as the length in the longitudinal direction of the lower layerabsorbent body 12, and the length in the width direction is the width of the lower layerabsorbent body 12 in thecentral portion 7. It is shorter than the length in the direction.

そして、下層吸収体12の幅方向の中央に上層吸収体11が配設されて吸収体5が構成される。すなわち、この吸収体5は、吸収性物品本体2の中央部7における幅方向の長さが前側部6および後側部8の幅方向の長さより短く形成された略砂時計形状であり、表面シート3および裏面シート4の略中央に配設されている。  And the upper layer absorber 11 is arrange | positioned in the center of the width direction of the lower layer absorber 12, and theabsorber 5 is comprised. That is, theabsorbent body 5 has a substantially hourglass shape in which the length in the width direction at thecentral portion 7 of theabsorbent article body 2 is shorter than the length in the width direction of the front side portion 6 and therear side portion 8. 3 and theback sheet 4 are arranged at substantially the center.

ここで、図1および図2(a)ないし(c)に示すように、上層吸収体11には上層開孔部13が設けられ、下層吸収体12には上層開孔部13に一部が重なった下層溝部14が設けられている。  Here, as shown in FIG. 1 and FIGS. 2A to 2C, the upperabsorbent body 11 is provided with an upperlayer opening portion 13, and the lower layerabsorbent body 12 has a part in the upperlayer opening portion 13. Overlappinglower layer grooves 14 are provided.

上層開孔部13は、平面視略矩形状であり、下層溝部14より幅方向の長さが長く形成されている。また、上層開孔部13は、上層吸収体11の幅方向の略中央において、上層吸収体11の長手方向に沿って、前側部6における上層吸収体11の長手方向端部から中央部7における上層吸収体11の長手方向略中央にわたって、装着者の排尿部位に対応する位置に設けられている。さらに、上層開孔部13は、上層吸収体11の表面シート3側から下層吸収体12側へ断面方向に貫通して設けられている。なお、図2(c)に示すように後側部8において上層開孔部13は設けられていない。  Theupper layer opening 13 has a substantially rectangular shape in plan view, and is longer than thelower layer groove 14 in the width direction. Further, theupper layer opening 13 is formed in thecentral portion 7 from the longitudinal end of the upperabsorbent body 11 in the front side portion 6 along the longitudinal direction of the upperabsorbent body 11 at the approximate center in the width direction of the upperabsorbent body 11. The upper layerabsorbent body 11 is provided at a position corresponding to the urination site of the wearer over substantially the center in the longitudinal direction. Further, theupper layer opening 13 is provided penetrating in the cross-sectional direction from thetop sheet 3 side of theupper layer absorber 11 to thelower layer absorber 12 side. In addition, as shown in FIG.2 (c), the upperlayer opening part 13 is not provided in therear side part 8. As shown in FIG.

下層溝部14は、上層開孔部13より幅方向の長さが短い平面視略矩形状であり、下層吸収体12の幅方向の略中央において、下層吸収体12の長手方向に沿って、中央部7から後側部8における下層吸収体12の長手方向端部よりやや内側の部分にわたって、装着者の股下から背側に対応する位置に設けられている。また、下層溝部14は、下層吸収体12の上層吸収体11側から裏面シート4側へ断面方向に貫通して設けられている。なお、図2(a)に示すように、前側部6において下層溝部14は設けられていない。  Thelower groove portion 14 has a substantially rectangular shape in plan view whose length in the width direction is shorter than that of the upperlayer opening portion 13, and is substantially in the center in the width direction of thelower layer absorber 12, along the longitudinal direction of thelower layer absorber 12. It is provided at a position corresponding to the back side from the crotch of the wearer over a portion slightly inside the longitudinal direction end of the lower layerabsorbent body 12 from theportion 7 to therear side portion 8. Further, the lowerlayer groove portion 14 is provided so as to penetrate in the cross-sectional direction from theupper layer absorber 11 side of thelower layer absorber 12 to theback sheet 4 side. As shown in FIG. 2A, the lowerlayer groove portion 14 is not provided in the front side portion 6.

図3(a)に示すように、吸収体5の幅方向の中央では、上層開孔部13が前側部6から中央部7にわたって位置し、下層溝部14が中央部7から後側部8にわたって位置している。また、下層溝部14より後側の端部には、下層吸収体12が位置しており、この下層吸収体12と上層吸収体11の一部とが重なっている。すなわち、吸収体5の幅方向の中央では、後側部8の端部でのみ上層吸収体11と下層吸収体12とが重なっている。  As shown in FIG. 3A, in the center of theabsorbent body 5 in the width direction, theupper layer opening 13 is located from the front side 6 to thecenter 7 and thelower layer groove 14 is from thecenter 7 to therear side 8. positioned. In addition, thelower layer absorber 12 is located at the end on the rear side of the lowerlayer groove portion 14, and thelower layer absorber 12 and a part of theupper layer absorber 11 overlap each other. That is, at the center in the width direction of theabsorbent body 5, the upper layerabsorbent body 11 and the lower layerabsorbent body 12 overlap only at the end portion of therear side portion 8.

そして、この吸収体5の幅方向の略中央では、上層開孔部13に連通した吸収体凹部15と、この吸収体凹部15に連通した通液部16とが設けられている。  Anabsorber recess 15 that communicates with the upperlayer opening portion 13 and aliquid passage portion 16 that communicates with theabsorber recess 15 are provided at substantially the center in the width direction of theabsorber 5.

吸収体凹部15は、中央部7に位置しており、上層開孔部13の長手方向の中央部7側と下層溝部14の長手方向の中央部7側とが重なって形成されている。また、吸収体凹部15は、図2(b)に示すように、上層開孔部13に対応する上層吸収体11の内側面と、上層開孔部13に対応する下層吸収体12の上層吸収体11側すなわち上側面と、下層溝部14に対応する下層吸収体12の内側面と、下層溝部14に対応する裏面シート4の下層吸収体12側すなわち上側面とによって、吸収体5の断面方向に凹状に形成されている。  The absorberconcave portion 15 is located in thecentral portion 7 and is formed by overlapping the longitudinalcentral portion 7 side of the upperlayer opening portion 13 and the longitudinalcentral portion 7 side of the lowerlayer groove portion 14. Further, as shown in FIG. 2 (b), theabsorber recess 15 includes an inner surface of theupper layer absorber 11 corresponding to theupper layer opening 13 and an upper layer absorption of thelower layer absorber 12 corresponding to theupper layer opening 13. The cross-sectional direction of theabsorbent body 5 by thebody 11 side, that is, the upper side surface, the inner side surface of the lower layerabsorbent body 12 corresponding to the lowerlayer groove portion 14, and the lower layerabsorbent body 12 side, that is, the upper side surface of theback sheet 4 corresponding to the lowerlayer groove portion 14 It is formed in a concave shape.

通液部16は、中央部7の略中央から後側部8側の下層吸収体12の端部よりやや内側にわたって位置し、上層吸収体11における上層開孔部13より後側部8側の上層開孔部13以外の非開孔部分と下層溝部14とが重なって形成されている。また、通液部16は、図2(c)に示すように、下層溝部14に対応する上層吸収体11の下層吸収体12側すなわち下側面と、下層溝部14に対応する下層吸収体12の内側面と、下層溝部14に対応する裏面シート4の下層吸収体12側すなわち上側面とによってトンネル状に形成されている。  The liquid passingpart 16 is located slightly from the center of thecentral part 7 to the inner side of the lowerabsorbent body 12 on therear side part 8 side, and on therear side part 8 side from the upperlayer opening part 13 in the upperabsorbent body 11. A non-opening part other than the upperlayer opening part 13 and the lowerlayer groove part 14 are formed to overlap each other. Further, as shown in FIG. 2 (c), theliquid passing part 16 includes the lowerabsorbent body 12 side, that is, the lower side surface of the upperabsorbent body 11 corresponding to thelower groove part 14, and the lowerabsorbent body 12 corresponding to thelower groove part 14. It is formed in a tunnel shape by the inner side surface and the lower surfaceabsorbent body 12 side, that is, the upper side surface of theback sheet 4 corresponding to the lowerlayer groove portion 14.

なお、図3(b)に示すように、吸収体5の幅方向の中央より外側の上層吸収体11が配設され、上層開孔部13が設けられていない部分では、吸収体5の長手方向の全域にわたって上層吸収体11と下層吸収体12とが重なっている。  As shown in FIG. 3 (b), the upper layerabsorbent body 11 outside the center in the width direction of theabsorbent body 5 is disposed, and in the portion where theupper layer opening 13 is not provided, the length of theabsorbent body 5 is increased. Theupper layer absorber 11 and thelower layer absorber 12 overlap over the whole area in the direction.

また、図3(c)に示すように、吸収体5の幅方向の中央よりやや外側であり、図3(a)にて示す部分と図3(b)にて示す部分との間では、前側部6から中央部7にわたって上層開孔部13が設けられ、この上層開孔部13より後側部8側では、上層吸収体11と下層吸収体12とが重なっている。  Moreover, as shown in FIG.3 (c), it is a little outside from the center of the width direction of theabsorber 5, and between the part shown in FIG.3 (a), and the part shown in FIG.3 (b), An upperlayer opening portion 13 is provided from the front side portion 6 to thecentral portion 7, and theupper layer absorber 11 and thelower layer absorber 12 overlap each other on therear side portion 8 side from the upperlayer opening portion 13.

次に、上記第1の実施の形態の作用を説明する。  Next, the operation of the first embodiment will be described.

使い捨て吸収性物品1を装着する際には、吸収性物品本体2の表面シート3を内側すなわち装着者側とし、吸収性物品本体2の裏面シート4を外側とするとともに、前側部6が装着者の腹側に位置し、中央部7が装着者の股下に位置し、後側部8が背側に位置するように、例えばおむつなどのパンツ型吸収性物品の内側面に配設して、パンツ型吸収性物品を装着する。  When the disposable absorbent article 1 is worn, thetop sheet 3 of theabsorbent article body 2 is on the inside, that is, the wearer side, theback sheet 4 of theabsorbent article body 2 is on the outside, and the front side portion 6 is the wearer. It is disposed on the inner surface of a pants-type absorbent article such as a diaper so that thecentral part 7 is located on the inseam of the wearer and therear part 8 is located on the back side, Wear a pants-type absorbent article.

使い捨て吸収性物品1の装着状態では、前側部6が装着者の腹側に位置するので、吸収体5の上層開孔部13が装着者の排尿部位に対応する。  In the wearing state of the disposable absorbent article 1, the front side portion 6 is located on the abdomen side of the wearer, so the upper layer opening 13 of theabsorbent body 5 corresponds to the urination site of the wearer.

したがって、装着者が排泄した排泄液は、表面シート3を透過して、上層開孔部13へ流入し、この上層開孔部13を通って吸収性物品本体2の前側部6から中央部7へ向かって移動しながら、上層吸収体11にて吸収される。すなわち、上層吸収体11での排泄液の拡散が上層開孔部13にて促進される。  Therefore, the excretion fluid excreted by the wearer passes through thetop sheet 3 and flows into theupper layer opening 13, and passes through the upper layer opening 13 from the front side 6 of theabsorbent article body 2 to thecenter 7. While being moved toward, it is absorbed by the upper-layer absorber 11. That is, the diffusion of excretory fluid in theupper layer absorbent 11 is promoted in theupper layer opening 13.

また、上層開孔部13を通って移動する排泄液は、上層開孔部13に連通した吸収体凹部15を通って、下層溝部14へ移動し通液部16へ流入する。  Further, the excretory fluid that moves through the upper layer opening 13 moves to thelower layer groove 14 through theabsorber recess 15 communicated with theupper layer opening 13, and flows into theliquid passing part 16.

通液部16に流入した排泄液は、通液部16を通って吸収性物品本体2の中央部7から後側部8へ向かって移動しながら、下層吸収体12にて吸収される。すなわち、下層吸収体12での排泄液の拡散が通液部16にて促進される。  The excretory fluid that has flowed into theliquid passing portion 16 is absorbed by the lower layerabsorbent body 12 while moving from thecentral portion 7 of theabsorbent article body 2 toward therear side portion 8 through the liquid passingportion 16. That is, the diffusion of excretory fluid in thelower layer absorber 12 is promoted in thefluid passing portion 16.

このように使い捨て吸収性物品1は、上層吸収体11に上層開孔部13が設けられ、下層吸収体12に下層溝部14が設けられ、また、吸収体凹部15および通液部16が形成されたことにより、吸収体5に吸収される排泄液が、上層開孔部13を通って上層吸収体11で拡散され、吸収体凹部15を通って上層開孔部13から下層溝部14へ移動して通液部16へ流入し、この通液部16を通って下層吸収体12で拡散されるので、排泄液の拡散性を向上できる。したがって、吸収体5は、排泄液が拡散しやすいので排泄液を効率よく吸収でき、排泄液を充分に吸収して排泄液の漏出を防止できる。  As described above, in the disposable absorbent article 1, the upper layerabsorbent body 11 is provided with the upperlayer opening part 13, the lower layerabsorbent body 12 is provided with the lowerlayer groove part 14, and the absorbent body recessedpart 15 and the liquid passingpart 16 are formed. As a result, the excretory fluid absorbed by theabsorber 5 is diffused in theupper layer absorber 11 through theupper layer opening 13, and moves from the upper layer opening 13 to thelower layer groove 14 through theabsorber recess 15. Then, it flows into theliquid passing part 16 and is diffused by thelower layer absorbent 12 through the liquid passingpart 16, so that the diffusibility of the excretory liquid can be improved. Therefore, theabsorbent body 5 can easily absorb the excretory liquid because the excretory liquid is easily diffused, and can sufficiently absorb the excretory liquid and prevent the excretion liquid from leaking out.

また、吸収体凹部15および通液部16が形成されたことにより、排泄液を下層吸収体12にて拡散しやすいので、下層吸収体12によって充分に排泄液を吸収できる。したがって、通液部16の上方に位置する上層吸収体11による排泄液の吸収量を少なくすることができ、吸収した排泄液の装着者の肌への逆戻りを防止できる。よって、排泄液の逆戻りによる装着感の悪化を防止できる。  Further, since theabsorbent recess 15 and the liquid passingportion 16 are formed, the excretory liquid can be easily diffused in thelower layer absorbent 12, so that thelower layer absorbent 12 can sufficiently absorb the excreted liquid. Therefore, it is possible to reduce the amount of excretory fluid absorbed by theupper layer absorber 11 positioned above theliquid passing portion 16, and to prevent the absorbed excretory fluid from returning to the wearer's skin. Accordingly, it is possible to prevent the wearing feeling from deteriorating due to the return of excretory fluid.

上層開孔部13は、上層吸収体11の幅方向中央に位置し、吸収性物品本体2における前側部6から中央部7にわたって設けられたことにより、上層開孔部13がより確実に装着者の排尿部位に対応して、排泄液が上層開孔部13に流入しやすい。また、下層溝部14は、下層吸収体12の幅方向中央に位置し、吸収性物品本体2における中央部7から後側部8にわたって設けられたことにより、通液部16が後側部8に形成されて排泄液を下層吸収体12の後側部8に拡散しやすい。したがって、吸収体5における排泄液の拡散性を向上でき、排泄液を効率よく吸収できる。  Theupper layer opening 13 is located at the center in the width direction of the upper layerabsorbent body 11 and is provided from the front side 6 to thecenter 7 in theabsorbent article body 2, so that theupper layer opening 13 is more reliably attached to the wearer. Corresponding to the urination site, the excretion fluid easily flows into theupper layer opening 13. Further, the lowerlayer groove portion 14 is located in the center of the lower layerabsorbent body 12 in the width direction and is provided from thecentral portion 7 to therear side portion 8 in the absorbent articlemain body 2, so that the liquid passingportion 16 is formed on therear side portion 8. The formed excretory liquid is easily diffused to therear side portion 8 of the lower layerabsorbent body 12. Therefore, the diffusibility of the excretory fluid in theabsorber 5 can be improved, and the excretory fluid can be efficiently absorbed.

ここで、装着状態では、吸収性物品本体2の中央部7が装着者の股下に位置するので、中央部7の両側には装着者の両脚が位置する。すなわち、装着状態において、中央部7は、両脚により幅方向内側への力を受けやすく、中央部7における吸収体5の幅が広いと吸収体5が幅方向内側に変形しやすい。吸収体5が変形することにより、上層開孔部13、下層溝部14、吸収体凹部15および通液部16が潰れてしまう。特に、上層開孔部13が上層吸収体11の幅方向中央に設けられ、下層溝部14が下層吸収体12の幅方向中央に設けられた構成では、上層開孔部13、下層溝部14、吸収体凹部15および通液部16が潰れやすくなってしまう。  Here, in the wearing state, thecenter portion 7 of theabsorbent article body 2 is located in the crotch of the wearer, so that both legs of the wearer are located on both sides of thecenter portion 7. That is, in the mounted state, thecenter portion 7 is easily subjected to the force inward in the width direction by both legs, and theabsorber 5 is easily deformed inward in the width direction when the width of theabsorber 5 in thecenter portion 7 is wide. When theabsorber 5 is deformed, the upperlayer opening portion 13, the lowerlayer groove portion 14, theabsorber recess portion 15 and the liquid passingportion 16 are crushed. In particular, in the configuration in which the upperlayer opening portion 13 is provided in the center in the width direction of theupper layer absorber 11, and the lowerlayer groove portion 14 is provided in the center in the width direction of thelower layer absorber 12, the upperlayer opening portion 13, the lowerlayer groove portion 14, the absorption The bodyconcave portion 15 and the liquid passingportion 16 are liable to be crushed.

そこで、吸収体5は、中央部7における幅方向の長さが、前側部6および後側部8における幅方向の長さより短く形成されたことにより、使い捨て吸収性物品1を装着した際に、中央部7において、吸収体5が装着者の脚周りに適応しやすく、吸収体5が幅方向内側への力を受けにくいので、吸収体5が変形しにくい。したがって、装着状態において、上層開孔部13、下層溝部14、吸収体凹部15および通液部16が潰れることを防止でき、装着した際の拡散性の低下を防止できる。  Therefore, when theabsorbent body 5 is mounted with the disposable absorbent article 1 by forming the length in the width direction in thecentral portion 7 shorter than the length in the width direction in the front side portion 6 and therear side portion 8, In thecentral portion 7, theabsorbent body 5 is easily adapted around the legs of the wearer, and theabsorbent body 5 is not easily subjected to a force inward in the width direction. Therefore, in the mounted state, it is possible to prevent the upperlayer opening portion 13, the lowerlayer groove portion 14, the absorberconcave portion 15 and the liquid passingportion 16 from being crushed, and to prevent a decrease in diffusibility when being mounted.

特に、中央部7において、吸収体5が幅方向内側へ円弧凹状に形成されることにより、吸収体5が装着者の脚周りに適応しやすく、装着状態にて吸収体5を変形しにくくできる。  In particular, in thecentral portion 7, theabsorbent body 5 is formed in an arc concave shape inward in the width direction, so that theabsorbent body 5 can be easily adapted around the legs of the wearer and theabsorbent body 5 can be hardly deformed in the worn state. .

なお、中央部7における吸収体5の幅方向の長さだけを短くすることにより、前側部6および後側部8における吸収体5の面積は大きく確保できるので、吸収体5の面積の縮小を最低限に抑えることができ、吸収体5の吸収力を充分に確保できる。  In addition, since the area of theabsorber 5 in the front side part 6 and therear side part 8 can be ensured large by shortening only the length of the width direction of theabsorber 5 in thecenter part 7, reduction of the area of theabsorber 5 is possible. It can be suppressed to the minimum, and the absorbent capacity of theabsorbent body 5 can be sufficiently secured.

上層開孔部13は、幅方向の長さが下層溝部14の幅方向の長さより長く形成されることにより、装着者から排泄された排泄液が上層開孔部13に流入しやすいので、吸収体5は、上層開孔部13、下層溝部14、吸収体凹部15および通液部16にて、より確実に排泄液を拡散できる。  The upperlayer opening portion 13 is formed so that the length in the width direction is longer than the length in the width direction of the lowerlayer groove portion 14, so that excretion fluid excreted from the wearer easily flows into the upperlayer opening portion 13. Thebody 5 can diffuse the excretory liquid more reliably at the upperlayer opening part 13, the lowerlayer groove part 14, the absorberconcave part 15, and the liquid passingpart 16.

また、下層溝部14の幅方向の長さを短くすることにより、排泄液が通液部16にて後側部8の奥側まで移動しやすく、排泄液をより確実に拡散できる。  Further, by shortening the length of the lowerlayer groove portion 14 in the width direction, the excretory fluid can easily move to the back side of therear side portion 8 through thefluid passing portion 16, and the excretory fluid can be more reliably diffused.

下層溝部14は、下層吸収体12の長手方向の両端部より内側に位置しているので、通液部16を通って拡散する排泄液が、下層吸収体12の長手方向の端部から流出して吸収性物品本体2から漏出することを防止できる。  Since the lowerlayer groove portion 14 is located on the inner side from both longitudinal end portions of the lower layerabsorbent body 12, the excretory fluid that diffuses through the liquid passingportion 16 flows out from the longitudinal end portion of the lower layerabsorbent body 12. Thus, leakage from theabsorbent article body 2 can be prevented.

なお、上記第1の実施の形態では、使い捨て吸収性物品1は、パンツ型の吸収性物品の内面側に配設して使用するものとしたが、このような構成には限定されず、パンツ型のものにも上記の構成を適用できる。In the first embodiment, the disposable absorbent article 1 is used by being disposed on the inner surface side of the pant-type absorbent article. However, the present invention is not limited to such a configuration. also of the typeRu can apply the above-describedconfiguration.

吸収体5は、中央部7における幅方向の長さが、前側部6および後側部8における幅方向の長さより短い構成としたが、このような構成には限定されず、前側部6、中央部7および後側部8における吸収体5の幅方向の長さは適宜設定できる。また、中央部7における吸収体5の幅方向の長さが、前側部6および後側部8における幅方向の長さより短い構成にする場合は、吸収体5の形状は、砂時計形状には限定されず、適宜設計できる。さらに、上層吸収体11および下層吸収体12の形状や大きさが異なる構成には限定されず、上層吸収体11および下層吸収体12の形状や大きさは適宜設定でき、例えば上層吸収体11および下層吸収体12が同形状の構成にしてもよい。  Theabsorbent body 5 has a configuration in which the length in the width direction in thecentral portion 7 is shorter than the length in the width direction in the front side portion 6 and therear side portion 8, but is not limited to such a configuration. The length in the width direction of theabsorbent body 5 at thecentral portion 7 and therear side portion 8 can be set as appropriate. Moreover, when making the length of the width direction of theabsorber 5 in thecenter part 7 shorter than the length of the width direction in the front side part 6 and therear side part 8, the shape of theabsorber 5 is limited to an hourglass shape. It can be designed as appropriate. Further, the shape and size of theupper layer absorber 11 and thelower layer absorber 12 are not limited to different configurations, and the shape and size of theupper layer absorber 11 and thelower layer absorber 12 can be set as appropriate, for example, theupper layer absorber 11 and Thelower layer absorber 12 may have the same shape.

吸収体5は、上層開孔部13と下層溝部14とが一部のみ重なった構成には限定されず、上層開孔部13と下層溝部14とが少なくとも一部が重なった構成であればよい。  Theabsorber 5 is not limited to a configuration in which the upperlayer opening portion 13 and the lowerlayer groove portion 14 are partially overlapped, and may be any configuration as long as the upperlayer opening portion 13 and the lowerlayer groove portion 14 are at least partially overlapped. .

上層開孔部13は、上層吸収体11の幅方向中央に位置する構成には限定されず、また、前側部6から中央部7にわたって設けられた構成には限定されず、上層開孔部13を設ける位置は適宜設定できる。  The upperlayer opening portion 13 is not limited to the configuration located in the center in the width direction of theupper layer absorber 11, and is not limited to the configuration provided from the front side portion 6 to thecenter portion 7, and the upperlayer opening portion 13 is not limited. The position for providing can be set as appropriate.

また、上層開孔部13は、平面視略矩形状の形状には限定されず、例えば、前側部6側から中央部7側へ向かって幅方向の長さが順次短く形成された構成などに適宜形成できる。  Theupper layer opening 13 is not limited to a substantially rectangular shape in plan view. For example, theupper layer opening 13 has a configuration in which the length in the width direction is sequentially shortened from the front side 6 side toward thecenter 7 side. It can be formed as appropriate.

さらに、上層開孔部13の幅方向の長さが下層溝部14の幅方向の長さより長い構成には限定されず、上層開孔部13および下層溝部14の大きさは適宜設定できる。  Furthermore, the length of the upper layer opening 13 in the width direction is not limited to the configuration longer than the length of thelower layer groove 14 in the width direction, and the sizes of theupper layer opening 13 and thelower layer groove 14 can be set as appropriate.

下層溝部14は、中央部7から後側部8にわたって設けられた構成としたが、このような構成には限定されず、下層溝部14を設ける位置は適宜設定でき、例えば、下層溝部14が前側部6から後側部8にわたって設けられた構成にしてもよい。このような構成にすることにより、排泄液が上層開孔部13から下層溝部14へと流入しやすく、排泄液が通液部16へ拡散しやすい。  Although the lowerlayer groove portion 14 is configured to be provided from thecenter portion 7 to therear side portion 8, the present invention is not limited to such a configuration, and the position where the lowerlayer groove portion 14 is provided can be set as appropriate. A configuration provided from the portion 6 to therear side portion 8 may be adopted. By adopting such a configuration, the excretion liquid easily flows from the upperlayer opening portion 13 into the lowerlayer groove portion 14, and the excretion solution easily diffuses into theliquid passage portion 16.

また、下層溝部14は、下層吸収体12の長手方向の両端部より内側に設けられた構成には限定されず、例えば、下層溝部14の長手方向の端部が後側部8における下層吸収体12の長手方向の端部まで設けられた構成にしてよい。  In addition, the lowerlayer groove portion 14 is not limited to the configuration provided inside the both ends in the longitudinal direction of the lower layerabsorbent body 12, for example, the lower end absorbent body in therear side portion 8 is the longitudinal end portion of the lowerlayer groove portion 14. A configuration may be provided in which up to 12 longitudinal ends are provided.

吸収性物品本体2は、表面シート3と裏面シート4との間に吸収体5が設けられていればよく、上記第1の実施の形態において、例えば図4(a)および(b)に示す第2の実施の形態のように、表面シート3が、上層吸収体11および下層吸収体12の凹凸に対応するように配設された構成、すなわち、表面シート3が上層開孔部13および下層溝部14の内部に沿って吸収体5の断面方向に凹むように配設された構成にしてもよい。  The absorbent articlemain body 2 only needs to be provided with theabsorbent body 5 between thetop sheet 3 and theback sheet 4. In the first embodiment, for example, as shown in FIGS. 4 (a) and 4 (b). As in the second embodiment, thesurface sheet 3 is arranged so as to correspond to the irregularities of theupper layer absorber 11 and thelower layer absorber 12, that is, thesurface sheet 3 has theupper layer opening 13 and the lower layer. A configuration may be adopted in which theabsorbent body 5 is recessed along the inside of thegroove portion 14 in the cross-sectional direction.

このように、表面シート3が上層開孔部13および下層溝部14の凹凸に対応して配設されることにより、吸収性物品本体2における吸収体5の位置ずれを防止できる。  As described above, by disposing thetopsheet 3 corresponding to the unevenness of theupper layer opening 13 and thelower layer groove 14, it is possible to prevent displacement of theabsorbent body 5 in theabsorbent article body 2.

なお、図4(a)は、第1の実施の形態における図1のA−A断面に相等する部分であり、図4(b)は、第1の実施の形態における図1のB−B断面に相等する部分である。  4A is a portion equivalent to the AA cross section of FIG. 1 in the first embodiment, and FIG. 4B is a cross section of FIG. 1 BB in the first embodiment. It is a part equivalent to the cross section.

また、吸収体5は、図5(a),(b)および図6(a),(b)に示す第3の実施の形態のように、上層クレープ紙21や下層クレープ紙22を設けた構成にしてもよい。  Further, theabsorbent body 5 is provided with theupper crepe paper 21 and thelower crepe paper 22 as in the third embodiment shown in FIGS. 5 (a) and 5 (b) and FIGS. 6 (a) and 6 (b). It may be configured.

図5(a),(b)に示す構成では、表面シート3と上層吸収体11との間に上層クレープ紙22が設けられ、上層吸収体11と下層吸収体12との間に下層クレープ紙22が設けられている。このように上層クレープ紙21を設ける場合は、図5(a)に示すように、上層開孔部13の表面シート3側である上部に上層クレープ紙21が設けられていない構成、および図5(b)に示すように、上層開孔部13の上部にも上層クレープ紙21が設けられた構成のいずれでもよい。  5 (a) and 5 (b), anupper crepe paper 22 is provided between thetop sheet 3 and the upperabsorbent body 11, and a lower crepe paper is provided between the upperabsorbent body 11 and the lowerabsorbent body 12. 22 is provided. When theupper crepe paper 21 is provided as described above, as shown in FIG. 5A, theupper crepe paper 21 is not provided on the upper side of the upper layer opening 13 on thesurface sheet 3 side, and FIG. As shown in (b), any structure in which the upperlayer crepe paper 21 is also provided on the upperlayer opening portion 13 may be used.

また、図6(a),(b)に示す構成では、上層吸収体11と下層吸収体12との間に下層クレープ紙22が設けられている。このように下層クレープ紙22を設ける場合は、図6(a)に示すように、下層溝部14の上層吸収体11側である上部に下層クレープ紙22が設けられていない構成、および図6(b)に示すように、下層溝部14の上部にも下層クレープ紙22が設けられた構成のいずれでもよい。  6A and 6B, a lowerlayer crepe paper 22 is provided between theupper layer absorber 11 and thelower layer absorber 12. In the configuration shown in FIGS. When thelower crepe paper 22 is provided in this way, as shown in FIG. 6A, thelower crepe paper 22 is not provided on the upper portion of thelower groove portion 14 on theupper absorber 11 side, and FIG. As shown in b), any of the configurations in which the lowerlayer crepe paper 22 is provided also on the upper portion of the lowerlayer groove portion 14 may be used.

このように、上層クレープ紙21や下層クレープ紙22が設けられたことにより、上層吸収体11および下層吸収体12の保形性を向上できる。  Thus, by providing the upperlayer crepe paper 21 and the lowerlayer crepe paper 22, the shape retention of theupper layer absorber 11 and thelower layer absorber 12 can be improved.

下層吸収体12は、下層溝部14が下層吸収体12を断面方向に貫通して形成された構成には限定されず、図7に示す第4の実施の形態のように、下層溝部14が、下層吸収体12を貫通せず、断面方向に凹状に形成された構成にしてもよい。  Thelower layer absorber 12 is not limited to the configuration in which the lowerlayer groove portion 14 is formed through thelower layer absorber 12 in the cross-sectional direction. As in the fourth embodiment shown in FIG. The lowerabsorbent body 12 may not be penetrated and may be formed in a concave shape in the cross-sectional direction.

また、下層吸収体12は、下層溝部14が1つのみ設けられた構成には限定されず、図8(a)ないし(c)に示す第5の実施の形態のように、複数の下層溝部14が設けられた構成にしてもよい。  Further, the lower layerabsorbent body 12 is not limited to the configuration in which only one lowerlayer groove portion 14 is provided, and a plurality of lower layer groove portions are provided as in the fifth embodiment shown in FIGS. 14 may be provided.

図8(a)に示す構成では、各下層溝部14の幅方向の長さが上層開孔部13より短く形成され、一部が上層開孔部13に重なった複数の下層溝部14が平行に設けられており、両側に位置する下層溝部14の幅方向の外側の端部は、それぞれ上層開孔部13より幅方向外側に位置している。  In the configuration shown in FIG. 8A, the width of each lowerlayer groove portion 14 is shorter than the upperlayer opening portion 13, and a plurality of lowerlayer groove portions 14 partially overlapping the upperlayer opening portion 13 are parallel to each other. The end portions on the outer side in the width direction of the lowerlayer groove portions 14 provided on both sides are located on the outer side in the width direction from the upperlayer opening portions 13, respectively.

図8(b)に示す構成では、一部が上層開孔部13に重なるように下層吸収体12の長手方向に沿って設けられた1つの下層溝部14の一部を基端に、下層吸収体12の幅方向両側へ向かって略ハ字状に設けられた対をなす下層溝部14が、下層吸収体12の長手方向へ向かって複数対並列して設けられている。  In the configuration shown in FIG. 8B, the lower layer absorption is based on a part of onelower groove portion 14 provided along the longitudinal direction of the lower layerabsorbent body 12 so that a part thereof overlaps the upperlayer opening portion 13. A plurality of pairs oflower layer grooves 14 are formed in parallel in the longitudinal direction of the lower layerabsorbent body 12 and are formed in a substantially C shape toward both sides in the width direction of thebody 12.

図8(c)に示す構成では、上層開孔部13に重なるように下層吸収体12の長手方向に沿って設けられた1つの下層溝部14の後側部8側の端部を基端に、複数の下層溝部14が下層吸収体12の幅方向外側へ向かって略扇状に設けられている。  In the configuration shown in FIG. 8C, the end on therear side 8 side of onelower layer groove 14 provided along the longitudinal direction of thelower layer absorber 12 so as to overlap theupper layer opening 13 is used as the base end. The plurality oflower layer grooves 14 are provided in a substantially fan shape toward the outer side in the width direction of thelower layer absorber 12.

これら図8(a)ないし(c)に示した構成では、複数の下層溝部14が設けられたことにより、下層吸収体12における排泄液の拡散性をより向上でき、下層吸収体12によって、より確実に排泄液を吸収できる。なお、複数の下層溝部14が設けられた構成の場合では、各下層溝部14は、下層吸収体12の幅方向両側縁部より内側に位置している。  In the configuration shown in FIGS. 8A to 8C, the plurality oflower layer grooves 14 are provided, whereby the diffusibility of excretory fluid in thelower layer absorber 12 can be further improved. It can absorb the excretory fluid reliably. In the case of a configuration in which a plurality of lowerlayer groove portions 14 are provided, each lowerlayer groove portion 14 is located on the inner side of the widthwise side edges of thelower layer absorber 12.

次に、第6の実施の形態を図9および図10を参照して説明する。なお、上記各実施の形態と同一の構成および作用については、同一符号を付してその説明を省略する。  Next, a sixth embodiment will be described with reference to FIG. 9 and FIG. In addition, about the structure and effect | action same as said each embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

図9および図10に示すように、この第6の実施の形態では、吸収体5の上層吸収体11と下層吸収体12との間に通液部16を覆う液透過性の上下層分離シート24が配設されている。  As shown in FIGS. 9 and 10, in the sixth embodiment, a liquid-permeable upper and lower layer separation sheet that covers the liquid passingportion 16 between the upper layerabsorbent body 11 and the lower layerabsorbent body 12 of theabsorbent body 5. 24 is arranged.

上下層分離シート24は、上層吸収体11より幅方向の長さが短い略矩形状の液透過性シートであり、吸収体5の長手方向の両端部にわたって設けられている。  The upper and lowerlayer separation sheet 24 is a substantially rectangular liquid-permeable sheet whose length in the width direction is shorter than that of the upper layerabsorbent body 11, and is provided across both ends of theabsorbent body 5 in the longitudinal direction.

このように、通液部16を覆う液透過性の上下層分離シート24が設けられたことにより、上層開孔部13と下層溝部14とを上下層分離シート24にて分離できる。したがって、装着状態などにて、吸収体5に力が加わり、下層溝部14が上層開孔部13側へ圧迫された際に、上層開孔部13に下層溝部14が入り込み、吸収体凹部15および通液部16が潰されることを防止できる。また、上下層分離シート24は、液透過性シートであるので、この上下層分離シート24によって、吸収体凹部15における上層開孔部13から下層溝部14への排泄液の流入が妨げられない。  Thus, by providing the liquid-permeable upper / lowerlayer separation sheet 24 covering theliquid passing portion 16, the upperlayer opening portion 13 and the lowerlayer groove portion 14 can be separated by the upper / lowerlayer separation sheet 24. Therefore, when a force is applied to theabsorbent body 5 in the mounted state and the lowerlayer groove portion 14 is pressed to the upperlayer opening portion 13 side, the lowerlayer groove portion 14 enters the upperlayer opening portion 13 and theabsorber recess 15 and The liquid passingportion 16 can be prevented from being crushed. Further, since the upper and lowerlayer separation sheet 24 is a liquid-permeable sheet, the upper and lowerlayer separation sheet 24 does not hinder the inflow of excretory fluid from the upper layer opening 13 to thelower layer groove 14 in theabsorber recess 15.

上下層分離シート24は、上層開孔部13と下層溝部14との分離性および排泄液の透過性を考慮すると、嵩高な不織布であることが好ましいが、吸収体凹部15および通液部16が潰れるの防止でき、かつ排泄液を透過できる液透過性シートであれば、その素材や構成は適宜設定できる。  The upper and lowerlayer separation sheet 24 is preferably a bulky nonwoven fabric in consideration of the separation between the upperlayer opening portion 13 and the lowerlayer groove portion 14 and the excretion fluid permeability. As long as it is a liquid-permeable sheet that can be prevented from being crushed and can pass excreted liquid, its material and configuration can be appropriately set.

また、上下層分離シート24は、少なくとも通液部16を覆っていれば、配設範囲は適宜設定でき、例えば吸収体5の全長或いは全幅にわたって配設されている必要はない。  Further, the upper and lowerlayer separation sheet 24 can appropriately set the arrangement range as long as it covers at least the liquid passingportion 16. For example, the upper and lowerlayer separation sheets 24 do not need to be arranged over the entire length or the entire width of theabsorber 5.

なお、上記第6の実施の形態において、図11に示す第7の実施の形態のように、クレープ紙が配設された構成の場合にも上下層分離シート24を配設できる。  In the sixth embodiment, the upper and lowerlayer separation sheets 24 can be disposed even in a configuration in which crepe paper is disposed as in the seventh embodiment shown in FIG.

具体的には、表面シート3と上層吸収体11との間に第1上層クレープ紙26が配設され、この第1上層クレープ紙26の下層吸収体12側に上下層分離シート24が配設され、この上下層分離シート24と下層吸収体12との間に下層クレープ紙28が配設されている。  Specifically, a firstupper crepe paper 26 is disposed between thetop sheet 3 and the upperabsorbent body 11, and an upper and lowerlayer separation sheet 24 is disposed on the lowerabsorbent body 12 side of the firstupper crepe paper 26. A lowerlayer crepe paper 28 is disposed between the upper and lowerlayer separation sheet 24 and thelower layer absorber 12.

このように、第1上層クレープ紙26、第2上層クレープ紙27、上下層分離シート24および下層クレープ紙28が配設されることにより、吸収体5の保形性および上層開孔部13と下層溝部14との分離性を向上でき、かつ、排泄液の拡散性を向上できる。  As described above, the first upperlayer crepe paper 26, the second upperlayer crepe paper 27, the upper and lowerlayer separation sheet 24, and the lowerlayer crepe paper 28 are disposed, so that the shape retention of theabsorber 5 and theupper layer opening 13 are The separability from the lowerlayer groove part 14 can be improved, and the diffusibility of excretory liquid can be improved.

1 使い捨て吸収性物品
2 吸収性物品本体
3 表面シート
4 裏面シート
5 吸収体
6 前側部
7 中央部
8 後側部
11 上層吸収体
12 下層吸収体
13 上層開孔部
14 下層溝部
15 吸収体凹部
16 通液部
24 上下層分離シート
DESCRIPTION OF SYMBOLS 1 Disposableabsorbent article 2 Absorbent articlemain body 3Top sheet 4Back sheet 5 Absorber 6Front side part 7Center part 8 Rear side part
11 Upper layer absorber
12 Underlayer absorber
13 Upper layer opening
14 Lower groove
15 Absorber recess
16 Fluid passage
24 Upper and lower layer separation sheet

Claims (3)

Translated fromJapanese
表面側に位置する表面シートと、裏面側に位置する裏面シートと、これら表面シートと裏面シートとの間に位置する吸収体とを有する吸収性物品本体を具備し、
この吸収性物品本体は、装着者の前側に配置される前側部と、装着者の股下に配置される中央部と、装着者の後側に配置される後側部とを長手方向に沿って順次備え、
前記吸収体は、前記表面シート側に位置し上層開孔部が設けられた上層吸収体と、前記裏面シート側に位置し前記上層開孔部に少なくとも一部が重なった下層溝部が設けられた下層吸収体と有し、
前記上層開孔部は、上層吸収体の幅方向中央に位置し、前記上層吸収体の長手方向に沿って少なくとも前記前側部から前記中央部にわたって設けられ、
前記下層溝部は、下層吸収体の幅方向中央に位置し、前記下層吸収体の長手方向に沿って少なくとも前記中央部から前記後側部にわたって設けられ、
少なくとも前記中央部には、前記上層開孔部と前記下層溝部とが重なって吸収体凹部が形成され、
前記上層吸収体の前記上層開孔部以外の部分と前記下層溝部とが重なって通液部が前記中央部から前記後側部にわたって形成された
ことを特徴とする使い捨て吸収性物品。
Comprising an absorbent article main body having a top sheet positioned on the front side, a back sheet positioned on the back side, and an absorber positioned between the top sheet and the back sheet;
This absorbent article main body has a front side portion disposed on the front side of the wearer, a central portion disposed on the crotch of the wearer, and a rear side portion disposed on the rear side of the wearer along the longitudinal direction. In order,
The absorbent body includes a top layerabsorber upper layer openinglocated on the topsheet side is provided, the lower groove at least partially overlapped provided on the back sheet positionpre SL upper opening on the side It was anda lower layer absorbent body,
The upper layer opening is located at the center in the width direction of the upper layer absorber, and is provided from the front side portion to the center portion along the longitudinal direction of the upper layer absorber,
The lower layer groove is located at the center in the width direction of the lower layer absorber, and is provided from the center to the rear side along at least the longitudinal direction of the lower layer absorber,
At least in the central portion, the upper layer opening portion and the lower layer groove portion overlap to form an absorber recess,
A disposable absorbent article, wherein a portion other than the upper layer opening portion of the upper layer absorbent body and the lower layer groove portion overlap to form a liquid passingportion from the central portion to the rear side portion .
上層開孔部は、幅方向の長さが下層溝部の幅方向の長さより長く形成され、
下層溝部は、下層吸収体の長手方向の両端部より内側に位置している
ことを特徴とする請求項1記載の使い捨て吸収性物品。
The upper layer opening is formed such that the length in the width direction is longer than the length in the width direction of the lower layer groove,
Lower groove claim1 Symbol placement of the disposable absorbent article characterized in that it is located inside the longitudinal ends of the lower absorbent body.
吸収体は、上層吸収体と下層吸収体との間に通液部を覆う液透過性の上下層分離シートが設けられた
ことを特徴とした請求項1または2記載の使い捨て吸収性物品。
The disposable absorbent article according to claim 1or 2, wherein the absorbent body is provided with a liquid-permeable upper and lower layer separation sheet that covers the liquid passing portion between the upper layer absorbent body and the lower layer absorbent body.
JP2009287813A2009-12-182009-12-18 Disposable absorbent articleActiveJP5394909B2 (en)

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