おむつ１は、図１に示すように、縦方向中央（縦中心線ＣＬｘ）を境界として着用時に着用者の前側（腹側）に配される前身頃Ｆと着用者の背側（後側）に配される後見頃Ｒとに区分される。縦中心線ＣＬｘは、図１に示す如き展開且つ伸長状態のおむつ１を縦方向Ｘに二等分して横方向Ｙに延びる仮想直線である。おむつ１の「展開且つ伸長状態」とは、おむつ１を図１に示す如き展開状態とし、その展開状態のおむつ１を各部の弾性部材を伸長させて設計寸法（弾性部材の影響を一切排除した状態で平面状に広げたときの寸法と同じ）となるまで拡げた状態をいう。
As shown in FIG. 1 , the diaper 1 has a front body F arranged on the front side (ventral side) of the wearer and the back side (rear side) of the wearer with the center in the vertical direction (vertical center line CLx) as a boundary. It is divided into the best time to see R, which is arranged in. The vertical center line CLx is a virtual straight line that bisects the expanded and stretched diaper 1 in the vertical direction X and extends in the horizontal direction Y as shown in FIG. The "expanded and stretched state" of the diaper 1 means that the diaper 1 is in the unfolded state as shown in FIG. 1 , and the elastic member of each part of the unfolded diaper 1 is stretched to eliminate the influence of the elastic member. It means the state of being expanded until it becomes the same as the dimensions when it is expanded in a flat state.
本実施形態の吸収性本体２は、肌対向面を形成する液透過性の表面シート３、非肌対向面を形成する液不透過性若しくは液難透過性又は撥水性の裏面シート４、及び両シート３，４間に介在配置された液保持性の吸収体５を具備し、これらが接着剤等の公知の接合手段により一体化されて構成されている。吸収性本体２は、図１に示す如き平面視において長方形形状をなし、腹側部Ａから背側部Ｃにわたって縦方向Ｘに延在し、その長手方向が縦方向Ｘに一致している。吸収体５は、平面視において、股下部Ｂに位置する縦方向Ｘの中央部が内方に括れた砂時計状をなし、縦方向Ｘに長い縦長の形状を有している。
The absorbent main body 2 of the present embodiment includes a liquid-permeable front sheet 3 that forms a skin-facing surface, a liquid-impermeable, liquid-impermeable, or water-repellent back sheet 4 that forms a non-skin-facing surface, and both. A liquid-retaining absorber 5 interposed between the sheets 3 and 4 is provided, and these are integrated by a known joining means such as an adhesive. The absorbent main body 2 has a rectangular shape in a plan view as shown in FIG. 1 , extends in the vertical direction X from the ventral side portion A to the dorsal side portion C, and its longitudinal direction coincides with the vertical direction X. In a plan view, the absorber 5 has an hourglass shape in which the central portion of the vertical direction X located at the lower crotch B is constricted inward, and has a vertically long shape long in the vertical direction X.
図４には示されていないが、第２層２２の肌対向面に、貫通型又は非貫通型の窪み部２２ａが複数存在するとともに、着用者の肌側に向かって隆起した凸部が複数存在してもよい。例えば積層構造２０Ａにおいて、第２層２２の窪み部２２ａが非貫通型の窪み部である場合、その第２層２２の肌対向面は、第１層２１や第３層２３の肌対向面と同様の凹凸構造を有していてもよい。斯かる構成により、第２層２２の液保持性が一層向上し、抗菌剤２４の溶出が一層促進され得る。
Although not shown in FIG. 4, a plurality of penetrating type or non-penetrating type recessed portions 22a are present on the skin facing surface of the second layer 22, and a plurality of convex portions are raised toward the skin side of the wearer. May exist. For example, in the laminated structure 20A, when the recessed portion 22a of the second layer 22 is a non-penetrating recessed portion, the skin facing surface of the second layer 22 is the skin facing surface of the first layer 21 and the third layer 23. It may have the same uneven structure as above. With such a configuration, the liquid retention property of the second layer 22 can be further improved, and the elution of the antibacterial agent 24 can be further promoted.
本発明で用いる抗菌剤としては、この種の吸収性物品に配合可能なものを特に制限無く用いることができ、無機系抗菌剤でも有機系抗菌剤でもよく、１種を単独で又は２種以上を組み合わせ用いることができる。無機系抗菌剤の具体例としては、例えば、銀担持ゼオライト、酸化チタンなどが挙げられる。有機系抗菌剤の具体例としては、例えば、ドデシル硫酸ナトリウム、塩化ベンザルコニウム、塩酸アルキルポリアミノエチルグリシンなどが挙げられる。
As the antibacterial agent used in the present invention, those that can be blended in this kind of absorbent article can be used without particular limitation, and may be an inorganic antibacterial agent or an organic antibacterial agent, and one type may be used alone or two or more types may be used. Can be used in combination. Specific examples of the inorganic antibacterial agent include silver-supported zeolite and titanium oxide. Specific examples of the organic antibacterial agent include sodium dodecyl sulfate, benzalkonium chloride, alkylpolyaminoethylglycine hydrochloride and the like.
＜２３＞
前記第３層が抗菌剤を含有している前記＜１＞～＜２２＞の何れか１に記載の吸収性物品。
＜２４＞
前記第３層において、前記窪み部の形成位置の坪量は、該窪み部の周辺部の坪量に比して低い前記＜１＞～＜２３＞の何れか１に記載の吸収性物品。
＜２５＞
前記第３層の窪み部が、該第３層を厚み方向に貫通する貫通孔である前記＜１＞～＜２４＞の何れか１に記載の吸収性物品。
＜２６＞
前記第３層の窪み部が非貫通型の窪み部であり、前記窪み部の周辺部の坪量に対する前記窪み部の形成位置の坪量の比率が、０．０８以上０．８以下、好ましくは０．１以上０．６以下である前記＜１＞～＜２４＞の何れか１に記載の吸収性物品。
＜２７＞
前記窪み部の形成位置の坪量が５０ｇ／ｍ２以上５００ｇ／ｍ２以下、好ましくは１００ｇ／ｍ２以上４００ｇ／ｍ２以下である＜２６＞に記載の吸収性物品。
＜２８＞
前記第２層は、肌対向面に窪み部を有し、
前記第３層の窪み部の窪み深さは、前記第２層の窪み部の窪み深さよりも深い前記＜１＞～＜２７＞の何れか１に記載の吸収性物品。
＜２９＞
前記第２層の窪み部の窪み深さに対する前記第３層の窪み部の窪み深さの比率が３以上２００以下、好ましくは１０以上１５０以下である前記＜２８＞に記載の吸収性物品。
<23>
The absorbent article according to any one of <1> to <22>, wherein the third layer contains an antibacterial agent.
<24>
The absorbent article according to any one of <1> to <23>, wherein in the third layer, the basis weight of the formation position of the recess is lower than the basis weight of the peripheral portion of the recess.
<25>
The absorbent article according to any one of <1> to <24>, wherein the recessed portion of the third layer is a through hole penetrating the third layer in the thickness direction.
<26>
The recessed portion of the third layer is a non-penetrating recessed portion, and the ratio of the basis weight of the formed position of the recessed portion to the basis weight of the peripheral portion of the recessed portion is preferably 0.08 or more and 0.8 or less. The absorbent article according to any one of <1> to <24>, wherein is 0.1 or more and 0.6 or less.
<27>
The absorbent article according to < 26>, wherein the basis weight of the position where the recess is formed is 50 g / m 2 or more and 500 g / m 2 or less, preferably 100 g / m 2 or more and 400 g / m 2 or less.
<28>
The second layer has a recessed portion on the surface facing the skin, and has a recessed portion.
The absorbent article according to any one of <1> to <27>, wherein the recessed depth of the recessed portion of the third layer is deeper than the recessed depth of the recessed portion of the second layer.
<29>
The absorbent article according to <28>, wherein the ratio of the recessed depth of the recessed portion of the third layer to the recessed depth of the recessed portion of the second layer is 3 or more and 200 or less, preferably 10 or more and 150 or less.
＜３４＞
着用者の前後方向に対応する縦方向と該縦方向に直交する横方向とを有し、前記積層構造の該縦方向に沿う両側部それぞれに沿って、着用時に着用者の肌側に向かって起立する防漏カフが配されており、
前記防漏カフの起立状態において、前記積層構造を構成する複数の層のうちの少なくとも１層に皺が形成される前記＜１＞～＜３３＞の何れか１に記載の吸収性物品。
＜３５＞
前記抗菌剤が無機系抗菌剤又は有機系抗菌剤である前記＜１＞～＜３４＞の何れか１に記載の吸収性物品。
＜３６＞
前記有機系抗菌剤が銀担持ゼオライト、酸化チタンから選択される１種又は２種である前記＜３５＞に記載の吸収性物品。
＜３７＞
前記有機系抗菌剤がドデシル硫酸ナトリウム、塩化ベンザルコニウム、塩酸アルキルポリアミノエチルグリシンから選択される１種又は２種である前記＜３５＞又は＜３６＞に記載の吸収性物品。
＜３８＞
前記第１層と前記第２層との間に他の層がなく、該第２層と前記第３との間に他の層がない前記＜１＞～＜３７＞の何れか１に記載の吸収性物品。
＜３９＞
前記第１層が着用者の肌から近い位置に配された表面シートであり、前記第３が液保持性の吸収性コアであり、前記第２層が前記吸収性コアを被覆するコアラップシートである前記＜１＞～＜３８＞の何れか１に記載の吸収性物品。
<34>
It has a vertical direction corresponding to the front-back direction of the wearer and a horizontal direction orthogonal to the vertical direction, and is directed toward the wearer's skin side at the time of wearing along each of both side portions of the laminated structure along the vertical direction. A leak-proof cuff that stands up is arranged,
The absorbent article according to any one of <1> to <33>, wherein wrinkles are formed in at least one of the plurality of layers constituting the laminated structure in the upright state of the leak-proof cuff.
<35>
The absorbent article according to any one of <1> to <34>, wherein the antibacterial agent is an inorganic antibacterial agent or an organic antibacterial agent.
<36>
The absorbent article according to <35>, wherein the organic antibacterial agent is one or two selected from silver-supported zeolite and titanium oxide.
<37>
The absorbent article according to <35> or <36>, wherein the organic antibacterial agent is one or two selected from sodium dodecyl sulfate, benzalkonium chloride, and alkylpolyaminoethylglycine hydrochloride .
<38>
The above <1> to <37>, wherein there is no other layer between the first layer and the second layer, and there is no other layer between the second layer and the third layer. Absorbent article.
<39>
The first layer is a surface sheet arranged close to the wearer's skin, the third layer is a liquid-retaining absorbent core, and the second layer is a core wrap sheet covering the absorbent core. The absorbent article according to any one of <1> to <38>.