JP6442224B2

JP6442224B2 - Pants-type absorbent article

Info

Publication number: JP6442224B2
Application number: JP2014214130A
Authority: JP
Inventors: 鈴木　陽一; 陽一鈴木; いづみ神山
Original assignee: Kao Corp
Current assignee: Kao Corp
Priority date: 2013-12-04
Filing date: 2014-10-21
Publication date: 2018-12-19
Anticipated expiration: 2034-10-21
Also published as: JP2015128573A; RU154680U1

Description

本発明は、パンツ型使い捨ておむつ等のパンツ型吸収性物品に関する。 The present invention relates to a pants-type absorbent article such as a pants-type disposable diaper.

一般的に、パンツ型使い捨ておむつは、おむつの外形を形成する外装体と、該外装体の内側に固定された吸収体を有す吸収性本体とを具備する。外装体の通気性を向上させ、着用時の使い捨ておむつの内部の蒸れを低減し、使い捨ておむつの使用感を高める観点から、例えば、特許文献１には、外装体に、貫通孔である通気孔を設けたパンツ型使い捨ておむつが記載されている。特許文献１に記載のパンツ型吸収性物品によれば、外装体の通気性が向上する。 Generally, a pants-type disposable diaper includes an exterior body that forms an outer shape of a diaper, and an absorbent main body that has an absorbent body fixed inside the exterior body. From the viewpoint of improving the breathability of the exterior body, reducing the stuffiness inside the disposable diaper when worn, and enhancing the feeling of use of the disposable diaper, for example, Patent Document 1 discloses a vent hole that is a through hole in the exterior body. A pants-type disposable diaper provided with is described. According to the pants-type absorbent article described in Patent Document 1, the air permeability of the exterior body is improved.

これとは別の技術として、本出願人は、先に、外装体に補助開口部を設けたパンツ型使い捨ておむつを提案した（特許文献２）。特許文献２に記載のパンツ型使い捨ておむつによれば、手の指が不自由な人でも、補助開口部に指を差し込んで、一人で着用することができる。 As a technique different from this, the present applicant has previously proposed a pants-type disposable diaper in which an exterior body is provided with an auxiliary opening (Patent Document 2). According to the pants-type disposable diaper described in Patent Document 2, even a person who has difficulty with fingers of the hand can insert the finger into the auxiliary opening and wear it alone.

特開平３−２５１２４５号公報JP-A-3-251245 特開２００４-２６７３３５号公報JP 2004-267335 A

しかし、特許文献１に記載の如きパンツ型使い捨ておむつは、外装体に、貫通孔が設けられているため、使用者に、漏れが発生してしまうのではないかと、漏れに対する不安を招いてしまう。 However, the pants-type disposable diaper described in Patent Document 1 has a through-hole in the exterior body, so that the user may be worried about leaks and may cause leaks. .

また、特許文献２に記載のパンツ型使い捨ておむつは、手の指が不自由な人でも一人で着用できる特異なおむつであり、指を差し込むことができる補助開口部を有している。このように、特許文献２には、漏れに対する改良に関して何ら記載されていない。 Moreover, the underpants type disposable diaper described in Patent Document 2 is a unique diaper that can be worn alone by a handicapped person, and has an auxiliary opening through which a finger can be inserted. As described above, Patent Document 2 does not describe any improvement on leakage.

したがって本発明は、前述した従来技術が有する欠点を解消し得るパンツ型吸収性物品を提供することにある。 Therefore, this invention is providing the underpants type absorbent article which can eliminate the fault which the prior art mentioned above has.

本発明は、着用時に着用者の腹側に配される腹側領域及び着用時に着用者の背側に配される背側領域を有する外装体と、該外装体の内側に固定された縦長の吸収体を有す吸収性本体とを具備し、前記腹側領域及び前記背側領域それぞれの両側縁部が接合されて、一対のサイドシール部、ウエスト開口部及び一対のレッグ開口部が形成されたパンツ型吸収性物品であって、前記外装体は、肌対向面側の内層シート部材と非肌対向面側の外層シート部材との間に、前記パンツ型吸収性物品の横方向に伸長した状態で配された弾性部材が、前記パンツ型吸収性物品の縦方向に、複数本間欠的に配されて形成されており、前記内層シート部材は複数個の内側開孔部を有し、前記外層シート部材は複数個の外側開孔部を有しており、前記外装体は、前記内側開孔部と前記外側開孔部とが混在して互いに重ならない位置に配されて形成されており、１本の前記弾性部材に着目して、該弾性部材を挟んで、前記パンツ型吸収性物品の縦方向の上側領域に配された前記内側開孔部及び前記外側開孔部の総数と、該縦方向の下側領域に配された前記内側開孔部及び前記外側開孔部の総数とが同じであるパンツ型吸収性物品を提供するものである。 The present invention includes an exterior body having an abdominal region disposed on the abdomen side of the wearer when worn and a backside region disposed on the back side of the wearer when worn, and a vertically long body fixed to the inside of the exterior body. An absorptive main body having an absorbent body, and both side edges of the ventral region and the dorsal region are joined to form a pair of side seal portions, a waist opening portion, and a pair of leg openings. The pants-type absorbent article, wherein the exterior body extends in the lateral direction of the pants-type absorbent article between the inner layer sheet member on the skin facing surface side and the outer layer sheet member on the non-skin facing surface side. The elastic member arranged in a state is formed by being intermittently arranged in the longitudinal direction of the pant-type absorbent article, and the inner layer sheet member has a plurality of inner opening portions, The outer layer sheet member has a plurality of outer opening portions, A side opening and the outside opening are mixed and formed at positions where they do not overlap each other. Focusing on one elastic member, the elastic member is sandwiched between the pant-type absorption members. The total number of the inner opening and the outer opening disposed in the upper region in the longitudinal direction of the adhesive article, and the inner opening and the outer opening disposed in the lower region in the longitudinal direction. A pants-type absorbent article having the same total number is provided.

本発明によれば、外装体の通気性が向上し、内部の蒸れが低減され、漏れに対する不安も想起し難く、使用感が向上する。 According to the present invention, the air permeability of the exterior body is improved, the internal stuffiness is reduced, the anxiety about leakage is hardly recalled, and the feeling of use is improved.

図１は、本発明の第１実施形態であるパンツ型使い捨ておむつの着用状態を示す斜視図である。FIG. 1 is a perspective view showing a wearing state of a pants-type disposable diaper according to the first embodiment of the present invention. 図２は、図１に示すパンツ型使い捨ておむつの組み立て状態を説明するための図である。FIG. 2 is a view for explaining an assembled state of the pants-type disposable diaper shown in FIG. 1. 図３は、図１に示すパンツ型使い捨ておむつを展開して伸長させた状態を外装体の外層シート部材側から見た平面図である。FIG. 3 is a plan view of the underpants-type disposable diaper shown in FIG. 1 as viewed from the outer layer sheet member side of the exterior body in an expanded state. 図４は、図３のＩＶ−ＩＶ線断面図である。4 is a cross-sectional view taken along line IV-IV in FIG. 図５は、本発明の第２実施形態であるパンツ型使い捨ておむつを外装体の外層シート部材側から見た一部平面図である。FIG. 5 is a partial plan view of the pants-type disposable diaper according to the second embodiment of the present invention as viewed from the outer layer sheet member side of the exterior body.

以下、本発明のパンツ型吸収性物品を、その好ましい第１実施形態に基づき図面を参照しながら説明する。
第１実施形態のパンツ型使い捨ておむつ１Ａ（以下、「おむつ１Ａ」ともいう。）は、図１に示すように、着用時に着用者の腹側に配される腹側領域Ａ及び着用時に着用者の背側に配される背側領域Ｂを有する外装体２と、外装体２の内側に固定された吸収体３３を有する長方形状の吸収性本体３とを具備し、腹側領域Ａの両側縁部２ａ，２ａと背側領域Ｂの両側縁部２ｂ，２ｂとが接合されて、一対のサイドシール部５，５、ウエスト開口部ＷＯ及び一対のレッグ開口部ＬＯ，ＬＯが形成されている。おむつ１Ａにおいては、外装体２が、腹側領域Ａから背側領域Ｂに亘って形成されており、腹側領域Ａと背側領域Ｂとの間に股下領域Ｃを有している。
本明細書において、「肌対向面」とは、吸収性本体３を構成する後述する表面シート３１などの各部材の表裏両面のうち、着用時に着用者の肌側に配される面であり、「非肌対向面」とは、吸収性本体３を構成する後述する表面シート３１などの各部材の表裏両面のうち、着用時に着用者の肌側とは反対側に向けられる面である。
また、各図に示す「Ｘ方向」は、吸収性本体３の縦方向に延びる中心線ＣＬ１に平行な方向である。また各図に示す「Ｙ方向」は、中心線ＣＬ１に直交する方向であり、吸収性本体３の横方向と同じ方向でもある。 Hereinafter, the underpants type absorbent article of the present invention will be described based on the preferred first embodiment with reference to the drawings.
The pants-type disposable diaper 1A of the first embodiment (hereinafter also referred to as “diaper 1A”) is, as shown in FIG. 1, a ventral region A disposed on the abdomen side of the wearer when worn and a wearer when worn. The exterior body 2 which has the back side area | region B distribute | arranged to the back side of this, and the rectangular-shaped absorptive main body 3 which has the absorber 33 fixed inside the exterior body 2 are provided, and both sides of the ventral | abdominal area A The edge portions 2a, 2a and the side edge portions 2b, 2b of the back region B are joined to form a pair of side seal portions 5, 5, a waist opening WO and a pair of leg openings LO, LO. . In the diaper 1 A, the exterior body 2 is formed from the ventral region A to the dorsal region B, and has a crotch region C between the ventral region A and the dorsal region B.
In the present specification, the “skin facing surface” is a surface arranged on the skin side of the wearer when wearing, among the front and back surfaces of each member such as a surface sheet 31 to be described later constituting the absorbent main body 3, The “non-skin facing surface” is a surface that is directed to the side opposite to the skin side of the wearer when worn, among the front and back surfaces of each member such as a surface sheet 31 described later that constitutes the absorbent main body 3.
The “X direction” shown in each figure is a direction parallel to the center line CL1 extending in the longitudinal direction of the absorbent main body 3. The “Y direction” shown in each figure is a direction orthogonal to the center line CL1 and is also the same direction as the lateral direction of the absorbent main body 3.

外装体２の内側には、図１，図２に示すように、吸収性本体３が固定されている。おむつ１Ａの吸収性本体３は、図２に示すように、実質的にＸ方向に縦長の長方形状であり、液透過性の表面シート３１、液不透過性（撥水性も含む）の裏面シート３２、両シート３１，３２間に介在する吸収体３３を備えている。おむつ１Ａにおいては、吸収体３３は、縦方向（Ｘ方向）に長い矩形型である。吸収性本体３の縦方向（Ｘ方向）に沿う両側部には、図２に示すように、液不透過性又は撥水性で且つ通気性の素材から構成された側方カフス３４，３４が設けられている。各側方カフス３４の自由端部近傍には、立体ギャザー形成用弾性部材３５が縦方向（Ｘ方向）に伸長した状態で配されている。おむつの着用時には、立体ギャザー形成用弾性部材３５の収縮により側方カフス３４の自由端部側が起立し、所謂立体ギャザーとなり、横方向（Ｙ方向）への体液の流出が阻止される。 As shown in FIGS. 1 and 2, an absorbent main body 3 is fixed inside the exterior body 2. As shown in FIG. 2, the absorbent main body 3 of the diaper 1 A has a substantially oblong rectangular shape in the X direction, a liquid-permeable top sheet 31, and a liquid-impermeable (including water-repellent) back sheet. 32, and an absorbent body 33 interposed between both sheets 31 and 32. In the diaper 1A, the absorber 33 has a rectangular shape that is long in the vertical direction (X direction). As shown in FIG. 2, side cuffs 34 and 34 made of a liquid-impermeable or water-repellent and breathable material are provided on both sides along the longitudinal direction (X direction) of the absorbent main body 3. It has been. In the vicinity of the free end of each side cuff 34, a three-dimensional gather forming elastic member 35 is arranged in a state of extending in the vertical direction (X direction). When the diaper is worn, the free end portion of the side cuff 34 rises due to the contraction of the elastic member 35 for forming the three-dimensional gather, so that a so-called three-dimensional gather is formed, and the outflow of body fluid in the lateral direction (Y direction) is prevented.

外装体２は、肌対向面側の内層シート部材２１と非肌対向面側の外層シート部材２２との間に、横方向（Ｙ方向）に伸長した状態で配された弾性部材２３が、縦方向（Ｘ方向）に、複数本間欠的に配されて形成されている。おむつ１Ａにおいては、内層シート部材２１が１枚のシートからなり、外層シート部材２２も１枚のシートからなる。内層シート部材２１及び外層シート部材２２は、図２に示すように、縦方向（Ｘ方向）中央部において内方に括れており、互いに同形同大に形成されている。また、おむつ１Ａにおいては、内層シート部材２１及び外層シート部材２２の間に、中央部の括れに沿って伸長した状態でレッグ弾性部材２４が配されている。 The exterior body 2 has an elastic member 23 disposed in a longitudinal direction (Y direction) between the inner layer sheet member 21 on the skin facing surface side and the outer layer sheet member 22 on the non-skin facing surface side. In the direction (X direction), a plurality of lines are intermittently arranged. In the diaper 1A, the inner layer sheet member 21 is composed of one sheet, and the outer layer sheet member 22 is also composed of one sheet. As shown in FIG. 2, the inner layer sheet member 21 and the outer layer sheet member 22 are bound inward in the central portion in the longitudinal direction (X direction), and are formed in the same shape and size. In the diaper 1 A, the leg elastic member 24 is disposed between the inner layer sheet member 21 and the outer layer sheet member 22 in a state of extending along the constriction at the center.

おむつ１Ａの外装体２は、図２に示すように、吸収性本体３が直接固定される内層シート部材２１と内層シート部材２１の外面側に配される外層シート部材２２との間に、複数本の弾性部材２３及びレッグ弾性部材２４を配し、内層シート部材２１又は外層シート部材２２の内面の全面に、スパイラル状或いはストライプ状に塗布された接着剤により、それらが貼り合わされて形成されている。 As shown in FIG. 2, the outer package 2 of the diaper 1 A includes a plurality of layers between an inner layer sheet member 21 to which the absorbent main body 3 is directly fixed and an outer layer sheet member 22 disposed on the outer surface side of the inner layer sheet member 21. The elastic member 23 and the leg elastic member 24 are arranged, and the inner layer sheet member 21 or the outer layer sheet member 22 is bonded to the entire inner surface by an adhesive applied in a spiral or stripe shape. Yes.

以上のように形成された外装体２は、図２，図３に示すように、縦方向（Ｘ方向）中央部において内方に括れている。おむつ１Ａにおいては、外装体２の腹側領域Ａ側の両側縁部２ａ，２ａの内面と外装体２の背側領域Ｂ側の両側縁部２ｂ，２ｂの内面同士を互いに重ね合わせ、合掌状に固定することにより、一対のサイドシール部５，５が形成されるとともに、図１に示す、ウエスト開口部ＷＯ及び一対のレッグ開口部ＬＯ，ＬＯが形成されている。 As shown in FIGS. 2 and 3, the exterior body 2 formed as described above is bound inward in the central portion in the longitudinal direction (X direction). In the diaper 1A, the inner surfaces of both side edges 2a, 2a on the ventral region A side of the outer package 2 and the inner surfaces of both side edges 2b, 2b on the back region B side of the outer package 2 are overlapped with each other, A pair of side seal portions 5 and 5 are formed, and a waist opening WO and a pair of leg openings LO and LO shown in FIG. 1 are formed.

外装体２について、詳述すると、腹側領域Ａ及び背側領域Ｂそれぞれに配された弾性部材２３は、吸収性本体３より縦方向（Ｘ方向）外方に間欠的に配された複数本のウエスト弾性部材２３１と、ウエスト弾性部材２３１より縦方向（Ｘ方向）の下方に間欠的に配された複数本の胴回り弾性部材２３２とを有している。外装体２を構成する内層シート部材２１及び外層シート部材部材２２の間に、伸長した状態でウエスト弾性部材２３１及び胴回り弾性部材２３２が配されていることにより、おむつ１Ａの外装体２には、ウエスト弾性領域（ウエストギャザー）及び胴回り弾性領域（胴回りギャザー）が形成される。尚、胴回り弾性部材２３２は、吸収性本体３と重なる位置においては細かく分断されて、もはや収縮力を発現しない状態となっていることが好ましい。また、おむつ１Ａの外装体２には、伸長した状態でレッグ弾性部材２４が配されていることにより、環状の一対のレッグ弾性領域（レッグギャザー）が形成される。 The exterior body 2 will be described in detail. The elastic members 23 arranged in the ventral region A and the dorsal region B are intermittently arranged in the longitudinal direction (X direction) outward from the absorbent main body 3. The waist elastic member 231 and a plurality of waistline elastic members 232 intermittently arranged below the waist elastic member 231 in the longitudinal direction (X direction). Since the waist elastic member 231 and the waistline elastic member 232 are arranged in an expanded state between the inner layer sheet member 21 and the outer layer sheet member member 22 constituting the outer package 2, the outer package 2 of the diaper 1A includes: A waist elastic region (waist gather) and a waistline elastic region (waistline gather) are formed. In addition, it is preferable that the waistline elastic member 232 is finely divided at a position where it overlaps the absorbent main body 3 and no longer contracts. Moreover, the leg elastic member 24 is arranged in the extended state on the outer package 2 of the diaper 1A, thereby forming a pair of annular leg elastic regions (leg gathers).

また、外装体２を構成する内層シート部材２１は複数個の内側開孔部２５を有し、外層シート部材２２は複数個の外側開孔部２６を有している。外装体２は、図１，図３に示すように、内側開孔部２５と外側開孔部２６とが混在して互いに重ならない位置に配されて形成されている。おむつ１Ａにおいては、内層シート部材２１の内側開孔部２５と外層シート部材２２の外側開孔部２６とが、腹側領域Ａから背側領域Ｂに亘る全領域にて、混在した状態で配され、平面視して、内側開孔部２５及び外側開孔部２６が互いに重ならない位置に配されている。このように、おむつ１Ａにおいては、内側開孔部２５及び外側開孔部２６が、腹側領域Ａから背側領域Ｂに亘る全領域に配されているが、外装体２の通気性を向上させ、おむつ１Ａの内部の蒸れを低減させる観点からは、少なくとも背側領域Ｂに配されていればよい。ここで、「重ならない位置に配されている」とは、内側開孔部２５と外側開孔部２６とが全く重なった部分を有さない場合のみならず、一部重なった部分を有する場合も含むことを意味する。尚、一部重なった部分を有する場合とは、一部重なっている内側開孔部２５及び外側開孔部２６の数が、内側開孔部２５及び外側開孔部２６の全体の数に対して２０％以下である場合をいう。 In addition, the inner layer sheet member 21 constituting the exterior body 2 has a plurality of inner opening portions 25, and the outer layer sheet member 22 has a plurality of outer opening portions 26. As shown in FIGS. 1 and 3, the exterior body 2 is formed so that the inner opening portion 25 and the outer opening portion 26 are mixed and arranged so as not to overlap each other. In the diaper 1A, the inner opening portion 25 of the inner layer sheet member 21 and the outer opening portion 26 of the outer layer sheet member 22 are arranged in a mixed state in the entire region from the ventral region A to the dorsal region B. In plan view, the inner opening portion 25 and the outer opening portion 26 are arranged so as not to overlap each other. As described above, in the diaper 1A, the inner opening portion 25 and the outer opening portion 26 are arranged in the entire region from the ventral region A to the dorsal region B, but the air permeability of the exterior body 2 is improved. From the viewpoint of reducing the stuffiness inside the diaper 1 A, at least the back region B may be disposed. Here, “arranged at a position where they do not overlap” means not only the case where the inner opening portion 25 and the outer opening portion 26 do not have a portion that overlaps at all, but also a portion that has a portion that overlaps. Is also included. In the case of having a partially overlapping portion, the number of the inner opening portion 25 and the outer opening portion 26 that are partially overlapped with respect to the total number of the inner opening portion 25 and the outer opening portion 26. Is less than 20%.

内側開孔部２５及び外側開孔部２６について、更に詳述すると、図３に示すように、外装体２は、内側開孔部２５と外側開孔部２６とが交互に配されて形成されている。具体的には、おむつ１Ａにおいては、外装体２の腹側領域Ａ及び背側領域Ｂそれぞれは、横方向（Ｙ方向）に伸長状態の弾性部材２３が縦方向（Ｘ方向）に間欠的に配された弾性部材配置領域となっており、外装体２の股下領域Ｃは、横方向（Ｙ方向）に伸長状態の弾性部材２３が配されていない非弾性部材配置領域となっている。弾性部材配置領域である腹側領域Ａ及び背側領域Ｂそれぞれにおいては、内側開孔部２５と外側開孔部２６が、縦方向（Ｘ方向）に交互に配されて互いに重ならない位置となっており、横方向（Ｙ方向）にも交互に配されて互いに重ならない位置となっている。非弾性部材配置領域である股下領域Ｃにおいては、内側開孔部２５と外側開孔部２６が、横方向（Ｙ方向）に交互に配されて互いに重ならない位置となっており、吸収性本体３の横方向に延びる中心線ＣＬ２に線対称となる位置に配されている。このように、内側開孔部２５及び外側開孔部２６それぞれは、弾性部材配置領域である腹側領域Ａ及び背側領域Ｂそれぞれに配された第１内側開孔部２５１及び第１外側開孔部２６１と、非弾性部材配置領域である股下領域Ｃに配された第２内側開孔部２５２及び第２外側開孔部２６２とを有している。 The inner opening portion 25 and the outer opening portion 26 will be described in further detail. As shown in FIG. 3, the exterior body 2 is formed by alternately arranging the inner opening portions 25 and the outer opening portions 26. ing. Specifically, in the diaper 1 A, in the ventral region A and the dorsal region B of the exterior body 2, the elastic members 23 that are extended in the horizontal direction (Y direction) are intermittently in the vertical direction (X direction). The crotch region C of the exterior body 2 is a non-elastic member arrangement region in which the elastic member 23 that is stretched in the lateral direction (Y direction) is not arranged. In each of the ventral region A and the back region B, which are elastic member arrangement regions, the inner opening portions 25 and the outer opening portions 26 are alternately arranged in the vertical direction (X direction) and do not overlap each other. They are arranged alternately in the horizontal direction (Y direction) and do not overlap each other. In the crotch region C, which is a non-elastic member arrangement region, the inner opening portion 25 and the outer opening portion 26 are alternately arranged in the lateral direction (Y direction) so as not to overlap each other. 3 is arranged at a position which is line-symmetric with respect to a center line CL2 extending in the horizontal direction. Thus, the inner opening portion 25 and the outer opening portion 26 are respectively provided with the first inner opening portion 251 and the first outer opening arranged in the ventral region A and the back region B, which are elastic member placement regions. It has a hole 261 and a second inner opening 252 and a second outer opening 262 arranged in the crotch region C which is a non-elastic member arrangement region.

さらに、横方向（Ｙ方向）に伸長状態の１本の弾性部材２３に着目して、該弾性部材２３を挟んで、縦方向（Ｘ方向）の上側領域ＵＴに配された内側開孔部２５及び外側開孔部２６の総数と、該弾性部材２３を挟んで、縦方向（Ｘ方向）の下側領域ＤＴに配された内側開孔部２５及び外側開孔部２６の総数とが同じである。具体的には、着目する１本の弾性部材２３は、腹側領域Ａ及び背側領域Ｂそれぞれに配された複数本のウエスト弾性部材２３１及び複数本の胴回り弾性部材２３２の中から選ぶことができる。また、ここで言う内側開孔部２５及び外側開孔部２６とは、弾性部材配置領域である腹側領域Ａ及び背側領域Ｂそれぞれに配された第１内側開孔部２５１及び第１外側開孔部２６１を意味する。おむつ１Ａにおいては、例えば、図３に示すように、複数本のウエスト弾性部材２３１及び胴回り弾性部材２３２の中から選ばれた１本の胴回り弾性部材２３２Ａに着目して、該胴回り弾性部材２３２Ａを挟んで、上側領域ＵＴに配された第１内側開孔部２５１及び第１外側開孔部２６１の総数と、下側領域ＤＴに配された第１内側開孔部２５１及び第１外側開孔部２６１の総数とが同じである。ここで総数が同じとは、弾性部材を挟んだ縦方向（Ｘ方向）の上側領域ＵＴに配された内側開孔部２５及び外側開孔部２６の総数と、該弾性部材２３を挟んで、縦方向（Ｘ方向）の下側領域ＤＴに配された内側開孔部２５及び外側開孔部２６の総数との比率が４：６〜６：４の範囲であることをいう。このような関係が、複数本の弾性部材２３の内の少なくとも１本の弾性部材２３において、形成されており、偏りのない応力を得る観点から、複数本の弾性部材２３において形成されていることが好ましく、各弾性部材２３において形成されていることが更に好ましい。上側領域ＵＴに配された第１内側開孔部２５１及び第１外側開孔部２６１の総数と、下側領域ＤＴに配された第１内側開孔部２５１及び第１外側開孔部２６１の総数とは、具体的に、10個以上80個以下であることが好ましく、20個以上60個以下であることが更に好ましい。 Further, paying attention to one elastic member 23 stretched in the lateral direction (Y direction), the inner opening portion 25 disposed in the upper region UT in the vertical direction (X direction) with the elastic member 23 interposed therebetween. The total number of the outer opening portions 26 and the total number of the inner opening portions 25 and the outer opening portions 26 arranged in the lower region DT in the vertical direction (X direction) with the elastic member 23 interposed therebetween are the same. is there. Specifically, the one elastic member 23 of interest is selected from a plurality of waist elastic members 231 and a plurality of waistline elastic members 232 arranged in the ventral region A and the back region B, respectively. it can. Moreover, the inner side opening part 25 and the outer side opening part 26 which are said here are the 1st inner side opening part 251 and the 1st outer side which were distribute | arranged to the abdominal side area | region A and back side area | region B which are elastic member arrangement | positioning areas, respectively. The opening 261 is meant. In the diaper 1A, for example, as shown in FIG. 3, paying attention to one waistline elastic member 232A selected from a plurality of waist elastic members 231 and waistline elastic members 232, the waistline elastic members 232A are The total number of first inner apertures 251 and first outer apertures 261 disposed in the upper region UT, and the first inner apertures 251 and first outer apertures disposed in the lower region DT. The total number of parts 261 is the same. Here, the total number is the same, the total number of the inner opening portion 25 and the outer opening portion 26 arranged in the upper region UT in the vertical direction (X direction) sandwiching the elastic member, and the elastic member 23, It means that the ratio of the total number of inner opening portions 25 and outer opening portions 26 arranged in the lower region DT in the vertical direction (X direction) is in the range of 4: 6 to 6: 4. Such a relationship is formed in at least one elastic member 23 of the plurality of elastic members 23, and is formed in the plurality of elastic members 23 from the viewpoint of obtaining stress without bias. It is more preferable that each elastic member 23 is formed. The total number of first inner opening portions 251 and first outer opening portions 261 arranged in the upper region UT, and the first inner opening portions 251 and first outer opening portions 261 arranged in the lower region DT. Specifically, the total number is preferably 10 or more and 80 or less, and more preferably 20 or more and 60 or less.

弾性部材配置領域である腹側領域Ａ及び背側領域Ｂそれぞれにおいては、図３に示すように、縦方向（Ｘ方向）に間欠的に配された弾性部材２３の間に、第１内側開孔部２５１及び第１外側開孔部２６１が交互に１個ずつ配されている。尚、弾性部材２３が着用者の肌に触れずに肌トラブルを発現させない観点からは、少なくとも肌対向面側の第１内側開孔部２５１が、縦方向（Ｘ方向）に間欠的に配された弾性部材２３の間に配されており、弾性部材２３が直接肌に触れないように形成されていればよい。 In each of the ventral region A and the dorsal region B, which are elastic member placement regions, as shown in FIG. 3, the first inner opening is provided between the elastic members 23 arranged intermittently in the vertical direction (X direction). The holes 251 and the first outer openings 261 are alternately arranged one by one. In addition, from the viewpoint that the elastic member 23 does not cause skin trouble without touching the wearer's skin, at least the first inner opening 251 on the skin facing surface side is intermittently arranged in the vertical direction (X direction). The elastic member 23 may be formed so as not to touch the skin directly.

おむつ１Ａにおいては、図３に示すように、非弾性部材配置領域である股下領域Ｃに配された第２内側開孔部２５２及び第２外側開孔部２６２は、その開孔面積が、弾性部材配置領域である腹側領域Ａ及び背側領域Ｂそれぞれに配された第１内側開孔部２５１及び第１外側開孔部２６１の開孔面積よりも大きくなっている。このように、弾性部材配置領域における第１内側開孔部２５１及び第１外側開孔部２６１の開孔面積が、非弾性部材配置領域における第２内側開孔部２５２及び第２外側開孔部２６２の開孔面積よりも小さいので、漏れに対する不安も想起し難く、通気性が向上する。該効果を一層奏する観点から、弾性部材配置領域における第１内側開孔部２５１及び第１外側開孔部２６１の開孔面積（Ｓ１）に対する非弾性部材配置領域における第２内側開孔部２５２及び第２外側開孔部２６２の開孔面積（Ｓ２）の比（Ｓ２／Ｓ１）が、２以上５００以下であることが好ましく、５以上１００以下であることが更に好ましい。また、弾性部材配置領域（腹側領域Ａ及び背側領域Ｂ）においては、第１内側開孔部２５１の開孔面積（Ｓ３）が、第１外側開孔部２６１の開孔面積（Ｓ４）よりも大きい方が、内側を大きくすることによる漏れに対する不安を想起させることなく通気性を確保できるので好ましい。第１外側開孔部２６１の開孔面積（Ｓ４）に対する第１内側開孔部２５１の開孔面積（Ｓ３）の比（Ｓ３／Ｓ４）が、２以上１００以下であることが好ましく、２以上５０以下であることが更に好ましい。更に、非弾性部材配置領域（股下領域Ｃ）においては、第２内側開孔部２５２の開孔面積（Ｓ５）が、第２外側開孔部２６２の開孔面積（Ｓ６）よりも大きいことが好ましく、第２外側開孔部２６２の開孔面積（Ｓ６）に対する第２内側開孔部２５２の開孔面積（Ｓ５）の比（Ｓ５／Ｓ６）が、２以上３０以下であることが好ましく、２以上１０以下であることが更に好ましい。具体的には、弾性部材配置領域における第１内側開孔部２５１及び第１外側開孔部２６１の平均開孔面積は、１ｍｍ^２以上１００ｍｍ^２以下であることが好ましく、非弾性部材配置領域における第２内側開孔部２５２及び第２外側開孔部２６２の平均開孔面積は、２０ｍｍ^２以上１５００ｍｍ^２以下であることが好ましい。 In the diaper 1A, as shown in FIG. 3, the second inner opening portion 252 and the second outer opening portion 262 arranged in the crotch region C, which is a non-elastic member arrangement region, have an opening area that is elastic. It is larger than the opening area of the 1st inner side opening part 251 and the 1st outer side opening part 261 which were distribute | arranged to the abdominal side area | region A and back side area | region B which are member arrangement | positioning areas, respectively. Thus, the opening area of the 1st inner side opening part 251 and the 1st outer side opening part 261 in an elastic member arrangement | positioning area | region is the 2nd inner side opening part 252 and 2nd outer side opening part in an inelastic member arrangement | positioning area | region. Since it is smaller than the opening area of 262, anxiety about leakage is hardly recalled, and air permeability is improved. From the viewpoint of further achieving this effect, the second inner opening 252 in the non-elastic member arrangement region with respect to the opening area (S1) of the first inner opening 251 and the first outer opening 261 in the elastic member arrangement region, and The ratio (S2 / S1) of the opening area (S2) of the second outer opening 262 is preferably 2 or more and 500 or less, and more preferably 5 or more and 100 or less. Further, in the elastic member arrangement region (ventral region A and back region B), the opening area (S3) of the first inner opening 251 is the opening area (S4) of the first outer opening 261. The larger one is more preferable because air permeability can be ensured without causing anxiety about leakage caused by enlarging the inside. The ratio (S3 / S4) of the opening area (S3) of the first inner opening 251 to the opening area (S4) of the first outer opening 261 is preferably 2 or more and 100 or less. More preferably, it is 50 or less. Furthermore, in the non-elastic member arrangement region (inseam region C), the opening area (S5) of the second inner opening portion 252 may be larger than the opening area (S6) of the second outer opening portion 262. Preferably, the ratio (S5 / S6) of the opening area (S5) of the second inner opening 252 to the opening area (S6) of the second outer opening 262 is 2 or more and 30 or less, More preferably, it is 2 or more and 10 or less. Specifically, the average opening area of the first inner opening 251 and the first outer opening 261 in the elastic member arrangement region is preferably 1 mm ² or more and 100 mm ² or less, and in the non-elastic member arrangement region. The average opening area of the second inner opening 252 and the second outer opening 262 is preferably 20 mm ² or more and 1500 mm ² or less.

内側開孔部２５及び外側開孔部２６を平面視した形状としては、円形状、多角形状、楕円形状などの幾何学模様形状や、サイズ情報を象った形状が挙げられ、特に弾性部材配置領域の縦方向の襞形成の観点から、縦方向（Ｘ方向）に長い形状であることが好ましい。また、外側開孔部２６を平面視した形状としては、おむつ１Ａの外観を向上させる観点から、キャラクター形状等の図柄模様であることが好ましい。おむつ１Ａにおいては、弾性部材配置領域である腹側領域Ａ及び背側領域Ｂそれぞれに配された第１内側開孔部２５１及び第１外側開孔部２６１の形状が、縦方向（Ｘ方向）に長い楕円形状に形成されており、非弾性部材配置領域である股下領域Ｃに配された第２内側開孔部２５２の形状が、第１内側開孔部２５１及び第１外側開孔部２６１の開口面積よりも大きな縦方向（Ｘ方向）に長い楕円形状に形成されている。また、非弾性部材配置領域である股下領域Ｃに配された第２外側開孔部２６２の形状が、第１内側開孔部２５１及び第１外側開孔部２６１の開口面積よりも大きい、星柄の図柄形状に形成されている。 The shape of the inner opening portion 25 and the outer opening portion 26 in a plan view includes a geometric pattern shape such as a circular shape, a polygonal shape, and an elliptical shape, and a shape that represents size information. From the viewpoint of forming vertical wrinkles in the region, the shape is preferably long in the vertical direction (X direction). Moreover, as a shape which planarly viewed the outer side opening part 26, it is preferable that it is a design pattern, such as a character shape, from a viewpoint of improving the external appearance of the diaper 1A. In the diaper 1 A, the shapes of the first inner opening 251 and the first outer opening 261 disposed in the ventral region A and the dorsal region B, which are elastic member arrangement regions, are longitudinal (X direction). The shape of the second inner opening 252 arranged in the crotch region C, which is a non-elastic member arrangement region, is the first inner opening 251 and the first outer opening 261. It is formed in an ellipse shape that is longer in the vertical direction (X direction) than the opening area of. Further, the shape of the second outer opening portion 262 arranged in the crotch region C, which is an inelastic member arrangement region, is larger than the opening areas of the first inner opening portion 251 and the first outer opening portion 261. It is formed in the pattern shape of the handle.

内側開孔部２５は、外装体２を構成する内層シート部材２１を、溶融させたり、切り抜いたり、打ち抜いたりして、予め形成することが好ましい。外側開孔部２６も、同様に、外装体２を構成する外層シート部材２２を、溶融させたり、切り抜いたり、打ち抜いたりして、予め形成することが好ましい。 The inner opening portion 25 is preferably formed in advance by melting, cutting out, or punching out the inner layer sheet member 21 constituting the exterior body 2. Similarly, the outer opening 26 is preferably formed in advance by melting, cutting out, or punching out the outer layer sheet member 22 constituting the exterior body 2.

第１実施形態のパンツ型使い捨ておむつ１Ａの形成材料について説明する。
外装体２を構成する外層シート部材部材２２と内層シート部材２１としては、通常、使い捨ておむつ等の吸収性物品に用いられるものであれば、特に制限なく用いることができる。例えば、外層シート部材部材２２及び内層シート部材２１としては、撥水性の不織布等を用いることができる。 The forming material of the pants-type disposable diaper 1A of the first embodiment will be described.
As the outer layer sheet member 22 and the inner layer sheet member 21 constituting the exterior body 2, any material can be used without particular limitation as long as it is normally used for absorbent articles such as disposable diapers. For example, as the outer layer sheet member 22 and the inner layer sheet member 21, a water-repellent nonwoven fabric or the like can be used.

吸収性本体３を構成する表面シート３１、裏面シート３２、吸収体３３及び側方カフス３４を形成するシートとしては、それぞれ、通常、使い捨ておむつ等の吸収性物品に用いられるものであれば、特に制限なく用いることができる。例えば、表面シート３１としては、親水性且つ液透過性の不織布等を用いることができ、裏面シート３２としては、液不透過性又は撥水性の樹脂フィルムや樹脂フィルムと不織布の積層体等を用いることができる。吸収体３３としては、吸収性ポリマーの粒子及び繊維材料から構成された吸収コアをティッシュペーパによって被覆されているものを用いることができる。側方カフス３４を形成するシートとしては、伸縮性のフィルム、不織布、織物またはそれらの積層シート等を用いることができる。 As the sheets forming the top sheet 31, the back sheet 32, the absorber 33 and the side cuffs 34 constituting the absorbent main body 3, respectively, as long as they are usually used for absorbent articles such as disposable diapers, in particular, Can be used without limitation. For example, a hydrophilic and liquid-permeable nonwoven fabric can be used as the top sheet 31, and a liquid-impermeable or water-repellent resin film or a laminate of a resin film and a nonwoven fabric is used as the back sheet 32. be able to. As the absorbent body 33, an absorbent core made of absorbent polymer particles and a fiber material and covered with tissue paper can be used. As the sheet for forming the side cuffs 34, an elastic film, a nonwoven fabric, a woven fabric, or a laminated sheet thereof can be used.

ウエスト弾性部材２３１、胴回り弾性部材２３２、レッグ弾性部材２４、及び立体ギャザー形成用弾性部材３５としては、通常、使い捨ておむつ等の吸収性物品に用いられるものであれば、特に制限なく用いることができる。例えば、天然ゴム、ポリウレタン、ポリスチレン−ポリイソプレン共重合体、ポリスチレン−ポリブタジエン共重合体、アクリル酸エチル−エチレン等のポリエチレン−αオレフィン共重合体等からなる糸状の伸縮性材料を用いることができる。 The waist elastic member 231, the waistline elastic member 232, the leg elastic member 24, and the elastic member 35 for forming a three-dimensional gather can be used without particular limitation as long as they are usually used for absorbent articles such as disposable diapers. . For example, a thread-like stretchable material made of natural rubber, polyurethane, polystyrene-polyisoprene copolymer, polystyrene-polybutadiene copolymer, polyethylene-α olefin copolymer such as ethyl acrylate-ethylene, or the like can be used.

サイドシール部５の接合には、通常、使い捨ておむつ等の吸収性物品に用いられる接着剤や、ヒートエンボス、超音波エンボス等の融着手段が用いられる。吸収性本体３と外装体２の内層シート部材２１との固定や、表面シート３１、裏面シート３２、側方カフス３４の固定も同様に、通常、使い捨ておむつ等の吸収性物品に用いられる接着剤やヒートエンボス、超音波エンボス等の融着手段が用いられる。 For the bonding of the side seal portion 5, an adhesive used for absorbent articles such as disposable diapers, or a fusion means such as heat embossing or ultrasonic embossing is usually used. Similarly, fixing of the absorbent main body 3 and the inner layer sheet member 21 of the exterior body 2 and fixing of the top sheet 31, the back sheet 32, and the side cuffs 34 are usually used for absorbent articles such as disposable diapers. Fusing means such as heat embossing and ultrasonic embossing are used.

上述した本発明の第１施形態のパンツ型使い捨ておむつ１Ａを使用した際の作用効果について説明する。
おむつ１Ａにおいては、図１に示すように、外装体２を構成する内層シート部材２１が内側開孔部２５を有し、外層シート部材２２が外側開孔部２６を有しているので、外装体２の通気性が向上し、おむつ１Ａ着用時の内部の蒸れが低減され、使用感が向上する。また、図１に示すように、内層シート部材２１の内側開孔部２５と外層シート部材２２の外側開孔部２６とが、混在しながら、図４に示すように、互いに重ならない位置に配されて、外装体２が形成されている。その為、おむつ１Ａの着用中に外側開孔部２６を介して着用者の肌が見えないので、使用者に漏れに対する不安を想起させ難く、使用感が向上する。特に、おむつ１Ａにおいては、内側開孔部２５と外側開孔部２６とが交互に配されているので、外観も良好となる。特に、おむつ１Ａにおいては、非弾性部材配置領域である股下領域Ｃに配された第２外側開孔部２６２の形状が、第１内側開孔部２５１及び第１外側開孔部２６１の開口面積よりも大きい、星柄の図柄形状に形成されているので、更に外観が良好となる。 The effect at the time of using the underpants type disposable diaper 1A of 1st Embodiment of this invention mentioned above is demonstrated.
In the diaper 1A, as shown in FIG. 1, the inner layer sheet member 21 constituting the outer package 2 has an inner opening portion 25 and the outer layer sheet member 22 has an outer opening portion 26. The air permeability of the body 2 is improved, the internal stuffiness when the diaper 1A is worn is reduced, and the feeling of use is improved. Further, as shown in FIG. 1, the inner opening portion 25 of the inner layer sheet member 21 and the outer opening portion 26 of the outer layer sheet member 22 are mixed and arranged at positions where they do not overlap each other as shown in FIG. Thus, the outer package 2 is formed. Therefore, since the wearer's skin cannot be seen through the outer opening portion 26 while the diaper 1A is worn, it is difficult for the user to recall anxiety about leakage, and the usability is improved. In particular, in the diaper 1A, since the inner opening portions 25 and the outer opening portions 26 are alternately arranged, the appearance is also improved. In particular, in the diaper 1 A, the shape of the second outer opening portion 262 arranged in the crotch region C that is an inelastic member arrangement region is the opening area of the first inner opening portion 251 and the first outer opening portion 261. Since it is formed in a larger star-shaped symbol shape, the appearance is further improved.

また、おむつ１Ａにおいては、図３に示すように、横方向（Ｙ方向）に伸長状態の１本の弾性部材２３に着目して、該弾性部材２３を挟んで、上側領域ＵＴに配された内側開孔部２５及び外側開孔部２６の総数と、下側領域ＤＴに配された内側開孔部２５及び外側開孔部２６の総数とが同じである。その為、弾性部材２３の上下でシートの剛性に偏りがなくなり、均等に応力を得ることが出来る。 Further, in the diaper 1A, as shown in FIG. 3, paying attention to one elastic member 23 stretched in the lateral direction (Y direction), the elastic member 23 is disposed in the upper region UT. The total number of the inner opening portions 25 and the outer opening portions 26 is the same as the total number of the inner opening portions 25 and the outer opening portions 26 arranged in the lower region DT. Therefore, the rigidity of the sheet is not biased above and below the elastic member 23, and stress can be obtained uniformly.

また、おむつ１Ａにおいては、図１に示すように、肌対向面側の第１内側開孔部２５１が、縦方向（Ｘ方向）に間欠的に配された弾性部材２３の間に配されており、弾性部材２３が直接肌に触れないように形成されているので、弾性部材２３が着用者の肌に触れずに肌トラブルを発現させ難く、使用感が向上する。 Moreover, in the diaper 1A, as shown in FIG. 1, the 1st inner side opening part 251 by the side of a skin opposing surface is distribute | arranged between the elastic members 23 distribute | arranged intermittently to the vertical direction (X direction). In addition, since the elastic member 23 is formed so as not to directly touch the skin, it is difficult for the elastic member 23 to contact the wearer's skin and to cause skin trouble, and the feeling of use is improved.

また、おむつ１Ａにおいては、図１に示すように、弾性部材配置領域である腹側領域Ａ及び背側領域Ｂそれぞれに配された第１内側開孔部２５１及び第１外側開孔部２６１の形状が、縦方向（Ｘ方向）に長い楕円形状に形成されており、非弾性部材配置領域である股下領域Ｃに配された第２内側開孔部２５２の形状も、縦方向（Ｘ方向）に長い楕円形状に形成されている。その為、弾性部材配置領域では長さ方向の襞の形成を誘引しやすく、また、非弾性部材配置領域においては長さ方向に伸びにくく装着性向上の効果を奏する。 Moreover, in diaper 1A, as shown in FIG. 1, the 1st inner side opening part 251 and the 1st outer side opening part 261 which were distribute | arranged to the abdominal side area | region A and back side area | region B which are elastic member arrangement | positioning areas, respectively. The shape is formed in an elliptical shape that is long in the vertical direction (X direction), and the shape of the second inner opening 252 disposed in the crotch region C that is an inelastic member placement region is also in the vertical direction (X direction). It is formed in a long oval shape. Therefore, it is easy to induce the formation of wrinkles in the length direction in the elastic member arrangement region, and it is difficult to extend in the length direction in the non-elastic member arrangement region, and the effect of improving the wearability is achieved.

次に、本発明の第２実施形態のパンツ型使い捨ておむつ１Ｂ（以下、「おむつ１Ｂ」とも言う。）について、図５に基づいて説明する。
第２実施形態のおむつ１Ｂについては、第１実施形態のおむつ１Ａと異なる点について説明する。特に説明しない点は、おむつ１Ａと同様であり、おむつ１Ａの説明が適宜適用される。 Next, a pants-type disposable diaper 1B (hereinafter also referred to as “diaper 1B”) according to a second embodiment of the present invention will be described with reference to FIG.
About the diaper 1B of 2nd Embodiment, a different point from the diaper 1A of 1st Embodiment is demonstrated. The point which is not demonstrated especially is the same as that of the diaper 1A, and description of the diaper 1A is applied suitably.

おむつ１Ｂは、図５に示すように、内側開孔部２５及び外側開孔部２６は、吸収性本体３側に在るものの方が、サイドシール部５側に在るものに比べて、開孔面積が小さく形成されている。詳述すると、おむつ１Ｂの外装体２においては、内層シート部材２１の内側開孔部２５と外層シート部材２２の外側開孔部２６とが、吸収性本体３を除く腹側領域Ａから背側領域Ｂに亘る領域にて、混在した状態で配され、平面視して、交互に互いに重ならない位置に配されている。 In the diaper 1B, as shown in FIG. 5, the inner opening 25 and the outer opening 26 are more open on the side of the absorbent main body 3 than on the side seal 5 side. The hole area is small. More specifically, in the outer package 2 of the diaper 1B, the inner opening portion 25 of the inner layer sheet member 21 and the outer opening portion 26 of the outer layer sheet member 22 are located behind the ventral region A excluding the absorbent main body 3. In the region over the region B, they are arranged in a mixed state, and are arranged at positions that do not overlap each other in plan view.

具体的には、おむつ１Ｂにおいては、図５に示すように、弾性部材配置領域である腹側領域Ａ及び背側領域Ｂそれぞれに配された第１内側開孔部２５１及び第１外側開孔部２６１の形状が、縦方向（Ｘ方向）に長い楕円形状に形成されており、非弾性部材配置領域である股下領域Ｃに配された第２外側開孔部２６２及び第２内側開孔部２５２の形状が、第１内側開孔部２５１及び第１外側開孔部２６１の開口面積よりも大きな縦方向（Ｘ方向）に長い楕円形状に形成されている。 Specifically, in the diaper 1B, as shown in FIG. 5, the first inner opening 251 and the first outer opening arranged in the ventral region A and the dorsal region B, which are elastic member placement regions, respectively. The shape of the portion 261 is formed in an elliptical shape that is long in the vertical direction (X direction), and the second outer opening portion 262 and the second inner opening portion disposed in the crotch region C that is an inelastic member arrangement region The shape of 252 is formed in an elliptical shape that is longer in the vertical direction (X direction) than the opening area of the first inner opening 251 and the first outer opening 261.

おむつ１Ｂにおいては、図５に示すように、弾性部材配置領域である腹側領域Ａ及び背側領域Ｂそれぞれにおけるウエスト弾性部材２３１が配されたウエスト弾性領域（ウエストギャザー）にて、第１内側開孔部２５１及び第１外側開孔部２６１が、縦方向（Ｘ方向）に交互に配されて互いに重ならない位置となっており、横方向（Ｙ方向）にも交互に配されて互いに重ならない位置となっている。そして、第１内側開孔部２５１及び第１外側開孔部２６１は、サイドシール部５側から吸収性本体３側、即ち縦方向（Ｘ方向）に延びる中心線ＣＬ１側に向かって、横方向（Ｙ方向）内方に向かうに従って漸次開孔面積が小さく形成されている。 In the diaper 1 B, as shown in FIG. 5, in the waist elastic region (waist gather) in which the waist elastic member 231 is disposed in each of the ventral region A and the back region B which are elastic member arrangement regions, The openings 251 and the first outer openings 261 are alternately arranged in the vertical direction (X direction) and do not overlap each other, and are alternately arranged in the horizontal direction (Y direction) and overlap each other. It has become a position that does not become. And the 1st inner side opening part 251 and the 1st outer side opening part 261 are horizontal direction toward the centerline CL1 side extended in the absorptive main body 3 side, ie, the vertical direction (X direction), from the side seal part 5 side. (Y direction) The opening area gradually decreases as it goes inward.

また、おむつ１Ｂにおいては、図５に示すように、弾性部材配置領域である腹側領域Ａ及び背側領域Ｂそれぞれにおける胴回り弾性部材２３２が配された胴回り弾性領域（胴回りギャザー）にて、第１内側開孔部２５１及び第１外側開孔部２６１が、吸収性本体３と重なる領域に配されておらず、吸収性本体３と重なる領域を除く領域にて、縦方向（Ｘ方向）に交互に配されて互いに重ならない位置となっており、横方向（Ｙ方向）にも交互に配されて互いに重ならない位置となっている。そして、第１内側開孔部２５１及び第１外側開孔部２６１は、サイドシール部５側から吸収性本体３側、即ち縦方向（Ｘ方向）に延びる中心線ＣＬ１側に向かって、横方向（Ｙ方向）内方に向かうに従って漸次開孔面積が小さく形成されている。 Moreover, in the diaper 1B, as shown in FIG. 5, in the waistline elastic region (gumbo gather) in which the waistline elastic member 232 in each of the abdominal region A and the backside region B, which are elastic member placement regions, is arranged. The first inner opening 251 and the first outer opening 261 are not arranged in the region overlapping with the absorbent main body 3, and in the vertical direction (X direction) in the region excluding the region overlapping with the absorbent main body 3. The positions are alternately arranged so as not to overlap each other, and the positions are also alternately arranged in the horizontal direction (Y direction) so as not to overlap each other. And the 1st inner side opening part 251 and the 1st outer side opening part 261 are horizontal direction toward the centerline CL1 side extended in the absorptive main body 3 side, ie, the vertical direction (X direction), from the side seal part 5 side. (Y direction) The opening area gradually decreases as it goes inward.

また、おむつ１Ｂにおいては、図５に示すように、非弾性部材配置領域である股下領域Ｃに配された第２内側開孔部２５２及び第２外側開孔部２６２が、吸収性本体３と重なる領域に配されておらず、吸収性本体３と重なる領域を除く領域にて、縦方向（Ｘ方向）に交互に配されて互いに重ならない位置となっており、横方向（Ｙ方向）にも交互に配されて互いに重ならない位置となっている。そして、第２内側開孔部２５２及び第２外側開孔部２６２は、サイドシール部５側から吸収性本体３側、即ち縦方向（Ｘ方向）に延びる中心線ＣＬ１側に向かって、横方向（Ｙ方向）内方に向かうに従って漸次開孔面積が小さく形成されている。 Moreover, in the diaper 1B, as shown in FIG. 5, the 2nd inner side opening part 252 and the 2nd outer side opening part 262 which were distribute | arranged to the crotch area C which is an inelastic member arrangement | positioning area | region are the absorbent main body 3, and It is not arranged in the overlapping area, and in the area excluding the area overlapping with the absorbent main body 3, it is alternately arranged in the vertical direction (X direction) and does not overlap each other, and in the horizontal direction (Y direction) Are arranged alternately so that they do not overlap each other. The second inner opening portion 252 and the second outer opening portion 262 are laterally directed from the side seal portion 5 side toward the absorbent main body 3 side, that is, toward the center line CL1 side extending in the vertical direction (X direction). (Y direction) The opening area gradually decreases as it goes inward.

上述した本発明の第２実施形態のおむつ１Ｂを使用した際の作用効果について説明する。
第２実施形態のおむつ１Ｂの効果については、第１実施形態のおむつ１Ａの効果と異なる点について説明する。特に説明しない点は、第１実施形態のおむつ１Ａの効果と同様であり、第１実施形態のパンツ型使い捨ておむつ１Ａの効果の説明が適宜適用される。 The effect at the time of using the diaper 1B of 2nd Embodiment of this invention mentioned above is demonstrated.
About the effect of the diaper 1B of 2nd Embodiment, a different point from the effect of the diaper 1A of 1st Embodiment is demonstrated. The point which is not demonstrated especially is the same as that of the diaper 1A of 1st Embodiment, and description of the effect of the pants type disposable diaper 1A of 1st Embodiment is applied suitably.

第２実施形態のおむつ１Ｂは、図５に示すように、内側開孔部２５及び外側開孔部２６は、吸収性本体３側に在るものの方が、サイドシール部５側に在るものに比べて、開孔面積が小さく形成されている。その為、漏れに対する不安を使用者が想起し難く、使用感が向上する。 As for the diaper 1B of 2nd Embodiment, as shown in FIG. 5, as for the inner side opening part 25 and the outer side opening part 26, the thing which exists in the absorptive main body 3 side exists in the side seal part 5 side. Compared to the above, the opening area is small. Therefore, it is difficult for the user to recall anxiety about leakage, and the feeling of use is improved.

本発明のパンツ型吸収性物品は、上述した第１実施形態のおむつ１Ａ、第２実施形態のおむつ１Ｂに何ら制限されるものではなく、適宜変更可能である。
例えば、上述したおむつ１Ａ，１Ｂの有する内側開孔部２５と外側開孔部２６は、図３，図５に示すように、規則正しく、縦方向（Ｘ方向）に交互に配されて互いに重ならない位置となっており、横方向（Ｙ方向）にも交互に配されて互いに重ならない位置となっているが、互いに重ならない位置となっていればよい。 The pants-type absorbent article of the present invention is not limited to the diaper 1A of the first embodiment and the diaper 1B of the second embodiment described above, and can be appropriately changed.
For example, as shown in FIGS. 3 and 5, the inner opening 25 and the outer opening 26 of the diapers 1 A and 1 B described above are regularly arranged alternately in the vertical direction (X direction) and do not overlap each other. It is a position that is alternately arranged in the horizontal direction (Y direction) and does not overlap with each other, but may be a position that does not overlap with each other.

また、上述したおむつ１Ａ，１Ｂにおいては、図２に示すように、内層シート部材２１が１枚のシートから形成されているが、複数枚のシートから形成されていてもよい。また、外層シート部材２２も１枚のシートから形成されているが、外層シート部材２２も同様に、複数枚のシートから形成されていてもよい。 In the diapers 1A and 1B described above, as shown in FIG. 2, the inner layer sheet member 21 is formed from a single sheet, but may be formed from a plurality of sheets. Moreover, although the outer layer sheet member 22 is also formed from one sheet, the outer layer sheet member 22 may be similarly formed from a plurality of sheets.

また、上述したおむつ１Ａ，１Ｂにおいては、図３，図５に示すように、非弾性部材配置領域である股下領域Ｃに配された第２内側開孔部２５２及び第２外側開孔部２６２は、その開孔面積が、弾性部材配置領域である腹側領域Ａ及び背側領域Ｂそれぞれに配された第１内側開孔部２５１及び第１外側開孔部２６１の開孔面積よりも大きくなっているが、均一な同じ開口面積であってもよい。また、上述したおむつ１Ａ，１Ｂにおいては、弾性部材配置領域である腹側領域Ａ及び背側領域Ｂにおいては、第１内側開孔部２５１の開孔面積（Ｓ３）が、第１外側開孔部２６１の開孔面積（Ｓ４）よりも大きくなっているが、第１内側開孔部２５１の開孔面積と第１外側開孔部２６１の開孔面積が等しくてもよい。また、弾性部材配置領域である股下領域Ｃにおいては、第２内側開孔部２５２の開孔面積（Ｓ５）が、第２外側開孔部２６２の開孔面積（Ｓ６）よりも大きくなっているが、第２内側開孔部２５２の開孔面積と第２外側開孔部２６２の開孔面積とが等しくてもよい。 In the diapers 1A and 1B described above, as shown in FIGS. 3 and 5, the second inner opening 252 and the second outer opening 262 are arranged in the crotch region C which is a non-elastic member arrangement region. The opening area is larger than the opening areas of the first inner opening portion 251 and the first outer opening portion 261 disposed in the ventral region A and the back region B, which are elastic member placement regions, respectively. However, the same opening area may be uniform. In the diapers 1A and 1B described above, in the ventral region A and the dorsal region B, which are elastic member placement regions, the opening area (S3) of the first inner opening 251 is the first outer opening. The opening area of the portion 261 is larger than the opening area (S4), but the opening area of the first inner opening portion 251 and the opening area of the first outer opening portion 261 may be equal. Further, in the crotch region C, which is an elastic member arrangement region, the opening area (S5) of the second inner opening 252 is larger than the opening area (S6) of the second outer opening 262. However, the opening area of the second inner opening 252 and the opening area of the second outer opening 262 may be equal.

また、上述したおむつ１Ｂにおいては、図５に示すように、第１内側開孔部２５１及び第１外側開孔部２６１は、サイドシール部５側から吸収性本体３側、即ち縦方向（Ｘ方向）に延びる中心線ＣＬ１側に向かって、横方向（Ｙ方向）内方に向かうに従って漸次開孔面積が小さく形成されているが、段階的に開口面積が小さく形成されていてもよい。また、第２内側開孔部２５２及び第２外側開孔部２６２も同様に、サイドシール部５側から吸収性本体３側に向かって、段階的に開口面積が小さく形成されていてもよい。 Moreover, in the diaper 1B mentioned above, as shown in FIG. 5, the 1st inner side opening part 251 and the 1st outer side opening part 261 are the absorptive main body 3 side, ie, the vertical direction (X The opening area is gradually reduced toward the inner side in the lateral direction (Y direction) toward the center line CL1 extending in the direction), but the opening area may be formed stepwise. Similarly, the second inner opening portion 252 and the second outer opening portion 262 may be formed so that the opening area is gradually reduced from the side seal portion 5 side toward the absorbent main body 3 side.

また、上述したおむつ１Ｂにおいては、図５に示すように、内側開孔部２５及び外側開孔部２６は、サイドシール部５側から吸収性本体３側に向かって、横方向（Ｙ方向）内方に向かうに従ってのみ、開口面積が小さく形成されているが、縦方向（Ｘ方向）内方に向かうに従って、開口面積が小さく形成されていてもよく、縦方向（Ｘ方向）及び横方向（Ｙ方向）内方に向かうに従って、開口面積が小さく形成されていてもよい。 Moreover, in the diaper 1B mentioned above, as shown in FIG. 5, the inner side opening part 25 and the outer side opening part 26 are horizontal direction (Y direction) toward the absorptive main body 3 side from the side seal part 5 side. The opening area is formed smaller only toward the inward direction, but the opening area may be formed smaller toward the inner side in the vertical direction (X direction), and the vertical direction (X direction) and the horizontal direction ( The opening area may be smaller as it goes inward (Y direction).

また、本発明におけるパンツ型吸収性物品は、パンツ型使い捨ておむつに限られず、パンツ型の生理用ナプキンであっても良い。
上述した一の実施形態における説明省略部分及び一の実施形態のみが有する要件は、それぞれ他の実施形態に適宜適用することができ、また、各実施形態における要件は、適宜、実施形態間で相互に置換可能である。 The pant-type absorbent article in the present invention is not limited to a pant-type disposable diaper, and may be a pant-type sanitary napkin.
The description omitted in one embodiment described above and the requirements of only one embodiment can be applied to other embodiments as appropriate, and the requirements in each embodiment can be appropriately changed between the embodiments. Can be substituted.

上述した実施形態に関し、さらに以下のパンツ型吸収性物品を開示する。 The following pant-type absorbent articles are disclosed with respect to the embodiment described above.

＜１＞
着用時に着用者の腹側に配される腹側領域及び着用時に着用者の背側に配される背側領域を有する外装体と、該外装体の内側に固定された縦長の吸収体を有す吸収性本体とを具備し、前記腹側領域及び前記背側領域それぞれの両側縁部が接合されて、一対のサイドシール部、ウエスト開口部及び一対のレッグ開口部が形成されたパンツ型吸収性物品であって、
前記外装体は、肌対向面側の内層シート部材と非肌対向面側の外層シート部材との間に、前記パンツ型吸収性物品の横方向に伸長した状態で配された弾性部材が、前記パンツ型吸収性物品の縦方向に、複数本間欠的に配されて形成されており、
前記内層シート部材は複数個の内側開孔部を有し、前記外層シート部材は複数個の外側開孔部を有しており、
前記外装体は、前記内側開孔部と前記外側開孔部とが混在して互いに重ならない位置に配されて形成されており、
各前記弾性部材を挟んで、前記パンツ型吸収性物品の縦方向の上側領域に配された前記内側開孔部及び前記外側開孔部の総数と、該縦方向の下側領域に配された前記内側開孔部及び前記外側開孔部の総数とが同じであるパンツ型吸収性物品。 <1>
An exterior body having an abdominal region disposed on the abdomen side of the wearer when worn and a back side region disposed on the back side of the wearer when worn, and a vertically long absorbent body fixed to the inside of the exterior body A pant-type absorption comprising a pair of side seal portions, a waist opening portion and a pair of leg opening portions. A sex product,
The outer body has an elastic member disposed between the inner layer sheet member on the skin facing surface side and the outer layer sheet member on the non-skin facing surface side in a state of extending in the lateral direction of the pant-type absorbent article, In the longitudinal direction of the pant-type absorbent article, a plurality of intermittently arranged,
The inner layer sheet member has a plurality of inner opening portions, and the outer layer sheet member has a plurality of outer opening portions,
The exterior body is formed by being arranged at a position where the inner opening and the outer opening are mixed and do not overlap each other,
The total number of the inner hole portions and the outer hole portions disposed in the upper region in the vertical direction of the pant-type absorbent article, and the lower region in the vertical direction, with each elastic member interposed therebetween. A pants-type absorbent article in which the total number of the inner opening and the outer opening is the same.

＜２＞
前記外装体は、少なくとも背側領域において、前記内側開孔部と前記外側開孔部とが混在して互いに重ならない位置に配されて形成されている前記＜１＞に記載のパンツ型吸収性物品。
＜３＞
前記外装体は、前記内側開孔部と前記外側開孔部とが交互に配されて形成されている前記＜１＞又は＜２＞に記載のパンツ型吸収性物品。
＜４＞
弾性部材配置領域である腹側領域及び背側領域それぞれにおいては、前記内側開孔部と前記外側開孔部が、縦方向（Ｘ方向）に交互に配されて互いに重ならない位置となっており、横方向（Ｙ方向）にも交互に配されて互いに重ならない位置となっている前記＜１＞〜＜３＞の何れか１に記載のパンツ型吸収性物品。
＜５＞
非弾性部材配置領域である股下領域Ｃにおいては、前記内側開孔部と前記外側開孔部が、横方向（Ｙ方向）に交互に配されて互いに重ならない位置となっており、前記吸収性本体の横方向に延びる中心線ＣＬ２に線対称となる位置に配されている前記＜１＞〜＜４＞の何れか１に記載のパンツ型吸収性物品。
＜６＞
前記内側開孔部及び前記外側開孔部それぞれは、弾性部材配置領域である腹側領域及び背側領域それぞれに配された第１内側開孔部及び第１外側開孔部と、非弾性部材配置領域である股下領域に配された第２内側開孔部及び第２外側開孔部とを有しており、
前記弾性部材配置領域である腹側領域及び背側領域それぞれにおいては、縦方向（Ｘ方向）に間欠的に配された弾性部材の間に、前記第１内側開孔部及び前記第１外側開孔部が交互に１個ずつ配されている前記＜１＞〜＜５＞の何れか１に記載のパンツ型吸収性物品。
＜７＞
前記パンツ型吸収性物品の縦方向に間欠的に配された前記弾性部材の間に、少なくとも前記内側開孔部が配されている前記＜１＞〜＜６＞の何れか１に記載のパンツ型吸収性物品。
＜８＞
前記内側開孔部及び前記外側開孔部は、それぞれ、前記パンツ型吸収性物品の縦方向に長い形状である前記＜１＞〜＜７＞の何れか１に記載のパンツ型吸収性物品。
＜９＞
前記内側開孔部及び前記外側開孔部は、平面視して、縦方向（Ｘ方向）に長い楕円形状に形成されている前記＜１＞〜＜８＞の何れか１に記載のパンツ型吸収性物品。
＜１０＞
前記外側開孔部は、図柄模様に形成されている前記＜１＞〜＜９＞の何れか１に記載のパンツ型吸収性物品。
＜１１＞
前記外装体は、前記腹側領域から前記背側領域に亘って形成されており、
前記内側開孔部及び前記外側開孔部は、複数本の前記弾性部材が配されていない非弾性部材配置領域に在るものの方が、該弾性部材が配された弾性部材配置領域に在るものに比べて、開孔面積が大きい前記＜１＞〜＜１０＞の何れか１に記載のパンツ型吸収性物品。 <2>
The pants type absorptive according to <1>, wherein the exterior body is formed so as to be disposed at a position where the inner opening portion and the outer opening portion are mixed and do not overlap each other at least in the back region. Goods.
<3>
The pants-type absorbent article according to <1> or <2>, wherein the exterior body is formed by alternately arranging the inner opening portions and the outer opening portions.
<4>
In each of the ventral region and the dorsal region, which are elastic member placement regions, the inner opening portion and the outer opening portion are alternately arranged in the vertical direction (X direction) and do not overlap each other. The underpants-type absorbent article according to any one of <1> to <3>, wherein the pants-type absorbent article is alternately arranged in the horizontal direction (Y direction) and does not overlap each other.
<5>
In the crotch region C, which is a non-elastic member arrangement region, the inner opening portion and the outer opening portion are alternately arranged in the lateral direction (Y direction) so as not to overlap each other. The underpants-type absorbent article according to any one of the above items <1> to <4>, which is arranged at a position that is line-symmetric with respect to a center line CL2 extending in the lateral direction of the main body.
<6>
Each of the inner opening and the outer opening includes a first inner opening and a first outer opening disposed in the ventral region and the back region, which are elastic member arrangement regions, and an inelastic member. Having a second inner opening and a second outer opening arranged in the crotch region which is the arrangement region;
In each of the ventral region and the dorsal region, which are the elastic member placement regions, the first inner opening and the first outer opening are provided between the elastic members intermittently arranged in the vertical direction (X direction). The underpants-type absorbent article according to any one of <1> to <5>, wherein the hole portions are alternately arranged one by one.
<7>
The pants according to any one of <1> to <6>, wherein at least the inner opening is disposed between the elastic members that are intermittently disposed in a longitudinal direction of the pant-type absorbent article. Mold absorbent article.
<8>
The said inner side opening part and the said outer side opening part are the underpants type absorbent articles in any one of said <1>-<7> which is a shape long in the vertical direction of the said underpants type absorbent article, respectively.
<9>
The inner hole portion and the outer hole portion are formed in an elliptical shape that is long in the vertical direction (X direction) in plan view, and the pants type according to any one of <1> to <8>. Absorbent article.
<10>
The outer opening portion is the pant-type absorbent article according to any one of <1> to <9>, which is formed in a design pattern.
<11>
The exterior body is formed from the ventral region to the dorsal region,
The inner opening portion and the outer opening portion are located in a non-elastic member arrangement region where a plurality of the elastic members are not arranged, and are located in an elastic member arrangement region where the elastic members are arranged. The underpants-type absorbent article according to any one of the above items <1> to <10>, which has a larger opening area than a product.

＜１２＞
前記内側開孔部及び前記外側開孔部それぞれは、弾性部材配置領域である腹側領域及び背側領域それぞれに配された第１内側開孔部及び第１外側開孔部と、非弾性部材配置領域である股下領域に配された第２内側開孔部及び第２外側開孔部とを有しており、
前記弾性部材配置領域における前記第１内側開孔部及び前記第１外側開孔部の開孔面積（Ｓ１）に対する前記非弾性部材配置領域における前記第２内側開孔部及び前記第２外側開孔部の開孔面積（Ｓ２）の比（Ｓ２／Ｓ１）が、２以上５００以下、好ましく５以上１００以下である前記＜１＞〜＜１１＞の何れか１に記載のパンツ型吸収性物品。
＜１３＞
前記内側開孔部及び前記外側開孔部それぞれは、弾性部材配置領域である腹側領域及び背側領域それぞれに配された第１内側開孔部及び第１外側開孔部と、非弾性部材配置領域である股下領域に配された第２内側開孔部及び第２外側開孔部とを有しており、
前記弾性部材配置領域（腹側領域及び背側領域）においては、前記第１内側開孔部の開孔面積（Ｓ３）が、前記第１外側開孔部の開孔面積（Ｓ４）よりも大きい前記＜１＞〜＜１２＞の何れか１に記載のパンツ型吸収性物品。
＜１４＞
前記内側開孔部及び前記外側開孔部それぞれは、弾性部材配置領域である腹側領域及び背側領域それぞれに配された第１内側開孔部及び第１外側開孔部と、非弾性部材配置領域である股下領域に配された第２内側開孔部及び第２外側開孔部とを有しており、
前記第１外側開孔部の開孔面積（Ｓ４）に対する前記第１内側開孔部の開孔面積（Ｓ３）の比（Ｓ３／Ｓ４）が、２以上１００以下、好ましくは２以上５０以下である前記＜１＞〜＜１３＞の何れか１に記載のパンツ型吸収性物品。
＜１５＞
前記内側開孔部及び前記外側開孔部それぞれは、弾性部材配置領域である腹側領域及び背側領域それぞれに配された第１内側開孔部及び第１外側開孔部と、非弾性部材配置領域である股下領域に配された第２内側開孔部及び第２外側開孔部とを有しており、
前記非弾性部材配置領域（股下領域）においては、前記第２内側開孔部の開孔面積（Ｓ５）が、前記第２外側開孔部の開孔面積（Ｓ６）よりも大きい前記＜１＞〜＜１４＞の何れか１に記載のパンツ型吸収性物品。
＜１６＞
前記内側開孔部及び前記外側開孔部それぞれは、弾性部材配置領域である腹側領域及び背側領域それぞれに配された第１内側開孔部及び第１外側開孔部と、非弾性部材配置領域である股下領域に配された第２内側開孔部及び第２外側開孔部とを有しており、
前記第２外側開孔部の開孔面積（Ｓ６）に対する前記第２内側開孔部の開孔面積（Ｓ５）の比（Ｓ５／Ｓ６）が、２以上３０以下、好ましくは２以上１０以下である前記＜１＞〜＜１５＞の何れか１に記載のパンツ型吸収性物品。
＜１７＞
前記内側開孔部及び前記外側開孔部それぞれは、弾性部材配置領域である腹側領域及び背側領域それぞれに配された第１内側開孔部及び第１外側開孔部と、非弾性部材配置領域である股下領域に配された第２内側開孔部及び第２外側開孔部とを有しており、
前記弾性部材配置領域における前記第１内側開孔部及び前記第１外側開孔部の平均開孔面積は、それぞれ、１ｍｍ^２以上１００ｍｍ^２以下であることが好ましく前記＜１＞〜＜１６＞の何れか１に記載のパンツ型吸収性物品。
＜１８＞
前記内側開孔部及び前記外側開孔部それぞれは、弾性部材配置領域である腹側領域及び背側領域それぞれに配された第１内側開孔部及び第１外側開孔部と、非弾性部材配置領域である股下領域に配された第２内側開孔部及び第２外側開孔部とを有しており、
前記非弾性部材配置領域における前記第２内側開孔部及び前記第２外側開孔部の平均開孔面積は、２０ｍｍ^２以上１５００ｍｍ^２以下であることが好ましい前記＜１＞〜＜１７＞の何れか１に記載のパンツ型吸収性物品。
＜１９＞
前記内側開孔部及び前記外側開孔部それぞれは、弾性部材配置領域である腹側領域及び背側領域それぞれに配された第１内側開孔部及び第１外側開孔部と、非弾性部材配置領域である股下領域に配された第２内側開孔部及び第２外側開孔部とを有しており、
前記弾性部材配置領域においては、前記第１内側開孔部の開孔面積と前記第１外側開孔部の開孔面積とがほぼ等しい前記＜１＞〜＜１０＞の何れか１に記載のパンツ型吸収性物品。
＜２０＞
前記内側開孔部及び前記外側開孔部それぞれは、弾性部材配置領域である腹側領域及び背側領域それぞれに配された第１内側開孔部及び第１外側開孔部と、非弾性部材配置領域である股下領域に配された第２内側開孔部及び第２外側開孔部とを有しており、
前記非弾性部材配置領域においては、前記第２内側開孔部の開孔面積と前記第２外側開孔部の開孔面積とがほぼ等しい前記＜１＞〜＜１２＞の何れか１に記載のパンツ型吸収性物品。 <12>
Each of the inner opening and the outer opening includes a first inner opening and a first outer opening disposed in the ventral region and the back region, which are elastic member arrangement regions, and an inelastic member. Having a second inner opening and a second outer opening arranged in the crotch region which is the arrangement region;
The second inner opening and the second outer opening in the non-elastic member arrangement region with respect to the opening area (S1) of the first inner opening and the first outer opening in the elastic member arrangement region. The pants-type absorbent article according to any one of <1> to <11>, wherein the ratio (S2 / S1) of the opening area (S2) of the part is 2 or more and 500 or less, preferably 5 or more and 100 or less.
<13>
Each of the inner opening and the outer opening includes a first inner opening and a first outer opening disposed in the ventral region and the back region, which are elastic member arrangement regions, and an inelastic member. Having a second inner opening and a second outer opening arranged in the crotch region which is the arrangement region;
In the elastic member arrangement region (abdominal region and back region), the opening area (S3) of the first inner opening is larger than the opening area (S4) of the first outer opening. The underpants-type absorbent article according to any one of <1> to <12>.
<14>
Each of the inner opening and the outer opening includes a first inner opening and a first outer opening disposed in the ventral region and the back region, which are elastic member arrangement regions, and an inelastic member. Having a second inner opening and a second outer opening arranged in the crotch region which is the arrangement region;
The ratio (S3 / S4) of the opening area (S3) of the first inner opening to the opening area (S4) of the first outer opening is 2 or more and 100 or less, preferably 2 or more and 50 or less. The pants-type absorbent article according to any one of <1> to <13>.
<15>
Each of the inner opening and the outer opening includes a first inner opening and a first outer opening disposed in the ventral region and the back region, which are elastic member arrangement regions, and an inelastic member. Having a second inner opening and a second outer opening arranged in the crotch region which is the arrangement region;
In the inelastic member arrangement region (inseam region), the opening area (S5) of the second inner opening portion is larger than the opening area (S6) of the second outer opening portion. The underpants type absorbent article according to any one of ~ <14>.
<16>
Each of the inner opening and the outer opening includes a first inner opening and a first outer opening disposed in the ventral region and the back region, which are elastic member arrangement regions, and an inelastic member. Having a second inner opening and a second outer opening arranged in the crotch region which is the arrangement region;
The ratio (S5 / S6) of the opening area (S5) of the second inner opening to the opening area (S6) of the second outer opening is 2 or more and 30 or less, preferably 2 or more and 10 or less. The underpants-type absorbent article according to any one of <1> to <15>.
<17>
Each of the inner opening and the outer opening includes a first inner opening and a first outer opening disposed in the ventral region and the back region, which are elastic member arrangement regions, and an inelastic member. Having a second inner opening and a second outer opening arranged in the crotch region which is the arrangement region;
The average opening area of the first inner opening portion and the first outer opening portion in the elastic member arrangement region is preferably 1 mm ² or more and 100 mm ² or less, preferably from <1> to <16>. The underpants type absorbent article according to any one of the above.
<18>
Each of the inner opening and the outer opening includes a first inner opening and a first outer opening disposed in the ventral region and the back region, which are elastic member arrangement regions, and an inelastic member. Having a second inner opening and a second outer opening arranged in the crotch region which is the arrangement region;
Any one of <1> to <17>, wherein an average opening area of the second inner opening and the second outer opening in the non-elastic member arrangement region is preferably 20 mm ² or more and 1500 mm ² or less. A pants-type absorbent article according to claim 1.
<19>
Each of the inner opening and the outer opening includes a first inner opening and a first outer opening disposed in the ventral region and the back region, which are elastic member arrangement regions, and an inelastic member. Having a second inner opening and a second outer opening arranged in the crotch region which is the arrangement region;
In the elastic member arrangement region, any one of the above items <1> to <10>, wherein an opening area of the first inner opening portion and an opening area of the first outer opening portion are substantially equal. Pants-type absorbent article.
<20>
Each of the inner opening and the outer opening includes a first inner opening and a first outer opening disposed in the ventral region and the back region, which are elastic member arrangement regions, and an inelastic member. Having a second inner opening and a second outer opening arranged in the crotch region which is the arrangement region;
In the inelastic member arrangement region, any one of the above items <1> to <12>, wherein an opening area of the second inner opening portion and an opening area of the second outer opening portion are substantially equal. Pants-type absorbent article.

＜２１＞
前記内側開孔部及び前記外側開孔部それぞれは、弾性部材配置領域である腹側領域及び背側領域それぞれに配された第１内側開孔部及び第１外側開孔部と、非弾性部材配置領域である股下領域に配された第２内側開孔部及び第２外側開孔部とを有しており、
前記非弾性部材配置領域である股下領域に配された前記第２内側開孔部の形状が、前記第１内側開孔部及び前記第１外側開孔部の開口面積よりも大きな縦方向（Ｘ方向）に長い楕円形状に形成されている前記＜１＞〜＜２０＞の何れか１に記載のパンツ型吸収性物品。
＜２２＞
前記内側開孔部及び前記外側開孔部それぞれは、弾性部材配置領域である腹側領域及び背側領域それぞれに配された第１内側開孔部及び第１外側開孔部と、非弾性部材配置領域である股下領域に配された第２内側開孔部及び第２外側開孔部とを有しており、
前記非弾性部材配置領域である股下領域に配された前記第２外側開孔部の形状が、前記第１内側開孔部及び前記第１外側開孔部の開口面積よりも大きい、星柄の図柄形状に形成されている前記＜１＞〜＜２０＞の何れか１に記載のパンツ型吸収性物品。
＜２３＞
前記内側開孔部及び前記外側開孔部は、前記吸収性本体側に在るものの方が、前記サイドシール部側に在るものに比べて、開孔面積が小さい前記＜１＞〜＜２２＞の何れか１に記載のパンツ型吸収性物品。
＜２４＞
前記内側開孔部及び前記外側開孔部それぞれは、弾性部材配置領域である腹側領域及び背側領域それぞれに配された第１内側開孔部及び第１外側開孔部と、非弾性部材配置領域である股下領域に配された第２内側開孔部及び第２外側開孔部とを有しており、
前記第１内側開孔部及び前記第１外側開孔部は、前記サイドシール部側から前記吸収性本体側に向かって、横方向（Ｙ方向）内方に向かうに従って漸次開孔面積が小さく形成されている前記＜１＞〜＜２３＞の何れか１に記載のパンツ型吸収性物品。
＜２５＞
前記内側開孔部及び前記外側開孔部それぞれは、弾性部材配置領域である腹側領域及び背側領域それぞれに配された第１内側開孔部及び第１外側開孔部と、非弾性部材配置領域である股下領域に配された第２内側開孔部及び第２外側開孔部とを有しており、
前記第１内側開孔部及び前記第１外側開孔部は、前記サイドシール部側から前記吸収性本体側に向かって、横方向（Ｙ方向）内方に向かうに従って段階的に開口面積が小さく形成されている前記＜１＞〜＜２３＞の何れか１に記載のパンツ型吸収性物品。 <21>
Each of the inner opening and the outer opening includes a first inner opening and a first outer opening disposed in the ventral region and the back region, which are elastic member arrangement regions, and an inelastic member. Having a second inner opening and a second outer opening arranged in the crotch region which is the arrangement region;
A longitudinal direction (X) in which the shape of the second inner opening portion arranged in the crotch region which is the non-elastic member arrangement region is larger than the opening areas of the first inner opening portion and the first outer opening portion. The pants-type absorbent article according to any one of <1> to <20>, which is formed in an elliptical shape that is long in a direction).
<22>
Each of the inner opening and the outer opening includes a first inner opening and a first outer opening disposed in the ventral region and the back region, which are elastic member arrangement regions, and an inelastic member. Having a second inner opening and a second outer opening arranged in the crotch region which is the arrangement region;
The shape of the second outer opening portion arranged in the crotch region which is the non-elastic member arrangement region is larger than the opening area of the first inner opening portion and the first outer opening portion. The pants-type absorbent article according to any one of <1> to <20>, which is formed in a pattern shape.
<23>
<1> to <22, wherein the inner opening and the outer opening have a smaller opening area on the side of the absorbent main body than on the side of the side seal part. > The pants type absorbent article according to any one of the above.
<24>
Each of the inner opening and the outer opening includes a first inner opening and a first outer opening disposed in the ventral region and the back region, which are elastic member arrangement regions, and an inelastic member. Having a second inner opening and a second outer opening arranged in the crotch region which is the arrangement region;
The first inner opening and the first outer opening are formed such that the opening area gradually decreases inward in the lateral direction (Y direction) from the side seal portion side toward the absorbent main body side. The underpants-type absorbent article according to any one of the above items <1> to <23>.
<25>
Each of the inner opening and the outer opening includes a first inner opening and a first outer opening disposed in the ventral region and the back region, which are elastic member arrangement regions, and an inelastic member. Having a second inner opening and a second outer opening arranged in the crotch region which is the arrangement region;
The opening area of the first inner opening and the first outer opening is gradually reduced from the side seal part side toward the absorbent main body side toward the inner side in the lateral direction (Y direction). The underpants-type absorbent article according to any one of <1> to <23>, which is formed.

１Ａ，１Ｂパンツ型使い捨ておむつ
２外装体
２１内層シート部材
２２外層シート部材
２３横方向（Ｙ方向）に伸長した状態で配された弾性部材
２４でレッグ弾性部材
２５内側開孔部
２６外側開孔部
３吸収性本体
３１表面シート
３２裏面シート
３３吸収体
３４側方カフス
３５立体ギャザー形成用弾性部材
Ａ腹側領域（弾性部材配置領域）
Ｂ背側領域（弾性部材配置領域）
Ｃ股下領域（非弾性部材配置領域）
ＣＬ１縦方向に延びる中心線
ＣＬ２横方向に延びる中心線
ＵＴ上側領域
ＤＴ下側領域
DESCRIPTION OF SYMBOLS 1A, 1B Pants type disposable diaper 2 Exterior body 21 Inner layer sheet member 22 Outer layer sheet member 23 Leg elastic member 25 in the state extended in the horizontal direction (Y direction) Leg inner member 25 Inner opening part 26 Outer opening part DESCRIPTION OF SYMBOLS 3 Absorbent main body 31 Top sheet 32 Back sheet 33 Absorber 34 Side cuff 35 Elastic member A for three-dimensional gather formation Ventral region (elastic member arrangement region)
B Dorsal region (elastic member placement region)
C Inseam area (non-elastic member placement area)
CL1 Center line CL2 extending in the vertical direction Center line UT extending in the horizontal direction Upper region DT Lower region

Claims

An exterior body having an abdominal region disposed on the abdomen side of the wearer when worn and a back side region disposed on the back side of the wearer when worn, and a vertically long absorbent body fixed to the inside of the exterior body A pant-type absorption comprising a pair of side seal portions, a waist opening portion and a pair of leg opening portions. A sex product,
The outer body has an elastic member disposed between the inner layer sheet member on the skin facing surface side and the outer layer sheet member on the non-skin facing surface side in a state of extending in the lateral direction of the pant-type absorbent article, In the longitudinal direction of the pant-type absorbent article, a plurality of intermittently arranged,
The inner layer sheet member has a plurality of inner opening portions, and the outer layer sheet member has a plurality of outer opening portions,
The exterior body is formed by being arranged at a position where the inner opening and the outer opening are mixed and do not overlap each other,
Paying attention to one elastic member, across the elastic member, the total number of the inner opening portion and the outer opening portion arranged in the upper region in the vertical direction of the pant-type absorbent article, the total number of the inner opening disposed in the lower region of the vertical direction and the outer opening portion is Ri same der,
The exterior body is formed from the ventral region to the dorsal region,
The inner opening portion and the outer opening portion are located in a non-elastic member arrangement region where a plurality of the elastic members are not arranged, and are located in an elastic member arrangement region where the elastic members are arranged. A pants-type absorbent article with a large opening area compared to the one .

An exterior body having an abdominal region disposed on the abdomen side of the wearer when worn and a back side region disposed on the back side of the wearer when worn, and a vertically long absorbent body fixed to the inside of the exterior body A pant-type absorption comprising a pair of side seal portions, a waist opening portion and a pair of leg opening portions. A sex product,
The outer body has an elastic member disposed between the inner layer sheet member on the skin facing surface side and the outer layer sheet member on the non-skin facing surface side in a state of extending in the lateral direction of the pant-type absorbent article, In the longitudinal direction of the pant-type absorbent article, a plurality of intermittently arranged,
The inner layer sheet member has a plurality of inner opening portions, and the outer layer sheet member has a plurality of outer opening portions,
The exterior body is formed by being arranged at a position where the inner opening and the outer opening are mixed and do not overlap each other,
Paying attention to one elastic member, across the elastic member, the total number of the inner opening portion and the outer opening portion arranged in the upper region in the vertical direction of the pant-type absorbent article, The total number of the inner opening and the outer opening arranged in the lower region in the vertical direction is the same,
The inner opening portion and the outer opening portion are pants-type absorbent articles having a smaller opening area when the one located on the absorbent main body side than the one located on the side seal portion side .

3. The pant-type absorption according to claim 1, wherein the exterior body is formed so as to be disposed at a position where the inner opening portion and the outer opening portion are mixed and do not overlap each other at least in the back region. Sex goods.

The pants-type absorbent article according to any one of claims 1 to 3, wherein the exterior body is formed by alternately arranging the inner opening portions and the outer opening portions.

The pants-type absorption according to any one of claims 1 to 4 , wherein at least the inner opening is arranged between the elastic members that are intermittently arranged in the longitudinal direction of the pants-type absorbent article. Sex goods.

The pants-type absorbent article according to any one of claims 1 to 5 , wherein each of the inner opening and the outer opening has a shape that is long in a longitudinal direction of the pants-type absorbent article.

The pants-type absorbent article according to any one of claims 1 to 6 , wherein the outer opening is formed in a design pattern.