JP6456319B2

JP6456319B2 - Absorbent articles

Info

Publication number: JP6456319B2
Application number: JP2016038301A
Authority: JP
Inventors: 麗子 ▲高▼島; 浩喜森; 紗紀子渡邉
Original assignee: Unicharm Corp
Current assignee: Unicharm Corp
Priority date: 2016-02-29
Filing date: 2016-02-29
Publication date: 2019-01-23
Anticipated expiration: 2036-02-29
Also published as: TW201740893A; WO2017150081A1; JP2017153627A

Description

本発明は、前後方向に延びる折り線によって折り畳まれた吸収性物品に関する。 The present invention relates to an absorbent article folded by a fold line extending in the front-rear direction.

前後方向に延びる折り線によって折り畳まれた吸収体を有する使い捨ておむつが提供されている（例えば、特許文献１参照）。特許文献１の吸収体は、前後方向に延びる第１折り返し線に沿って幅方向内側に折り返され、当該折り返された領域は、第２折り返し線に沿って幅方向外側に折り返されている。 A disposable diaper having an absorbent body folded by a fold line extending in the front-rear direction is provided (see, for example, Patent Document 1). The absorber of Patent Document 1 is folded back in the width direction along a first folding line extending in the front-rear direction, and the folded area is folded back in the width direction along the second folding line.

特表２００２−３４５８７１号公報JP 2002-345871 Gazette

このような吸収性物品は、一般的に、使用前に吸収性物品の幅方向に延びる二つ折り線を基点にして、吸収性物品の肌対向面同士が向き合うように二つに折り畳まれている。吸収性物品の二つ折り線が着用者に対して谷折りであり、吸収性物品には着用者から離れるような折り癖が形成される。 Such an absorbent article is generally folded in two before use so that the skin-facing surfaces of the absorbent article face each other, starting from a fold line extending in the width direction of the absorbent article. . The fold line of the absorbent article is a valley fold with respect to the wearer, and a crease is formed on the absorbent article so as to be away from the wearer.

また、吸収体は、二つに折り畳まれた状態で二つ折り線を中心に圧縮され、当該圧縮された部分の剛性が高くなる。特許文献１の吸収体は、第１折り返し線と第２折り返し線の間において３層重なっている。吸収体が３層重なっている領域の厚さは、比較的厚い。そのため、特許文献１の吸収体は、３層重なっている領域の二つ折り線において、より圧縮され、剛性がより高くなる。このような吸収性物品が着用されると、着用者の両脚によって挟まれた際に二つ折り線が設けられた部分が着用者の肌から離れ、身体に対する吸収体の密着性が低下する。身体に対する吸収体の密着性が低下することにより、体液の引き込み性が低下し、漏れが発生するおそれがあった。 Further, the absorbent body is compressed around the fold line in a state of being folded in two, and the rigidity of the compressed portion is increased. The absorbent body of Patent Document 1 has three layers overlapping between the first fold line and the second fold line. The thickness of the region where the absorbers are stacked in three layers is relatively thick. Therefore, the absorber of patent document 1 is compressed more in the fold line of the area | region which has overlapped 3 layers, and rigidity becomes higher. When such an absorbent article is worn, the part where the fold line is provided when sandwiched between both legs of the wearer is separated from the skin of the wearer, and the adhesion of the absorbent body to the body is lowered. When the adherence of the absorbent body to the body is lowered, the body fluid drawability is lowered, and there is a risk of leakage.

本開示は、上述の課題に鑑みてなされたものであり、幅方向に延びる二つ折り線によって折り畳まれた吸収性物品において、漏れの発生を抑制することを目的とする。 This indication is made in view of the above-mentioned subject, and aims at controlling the occurrence of leak in the absorptive article folded by the double fold line prolonged in the width direction.

本開示に係る吸収性物品（使い捨ておむつ１０）は、前後方向（前後方向Ｌ）と、前記前後方向と直交する幅方向（幅方向Ｗ）と、前胴回り域（前胴回り域２０）、後胴回り域（後胴回り域３０）、及び前記前胴回り域と前記後胴回り域との間に位置する股下域（股下域２５）と、前記前後方向に延び、かつ吸収体を折り畳むための一対の第１折り線（第１折り線ＦＬ１）及び一対の第２折り線（第２折り線ＦＬ２）を有する吸収体（吸収体４０）と、前記股下域において前記幅方向に延び、かつ吸収性物品を二つに折り畳むための二つ折り線（二つ折り線ＦＬ３）と、を備える吸収性物品であって、前記吸収体は、前記吸収体が折り畳まれた折り畳み状態において、前記一対の第１折り線の間に位置し、前記吸収体の幅方向の中央を含む第１領域（第１領域４０１）と、前記第１折り線と前記第２折り線との間に位置し、前記第１領域の肌対向面側にそれぞれ配置される一対の第２領域（第２領域４０２）と、前記第２折り線よりも幅方向の外側に位置し、前記第２領域の肌対向面側にそれぞれ配置される一対の第３領域（第３領域４０３）と、を有し、前記第３領域は、少なくとも前記股下域において前記第３領域の外側縁（第３領域の外側縁４０３Ｅ２）から前記幅方向の内側に延びる低目付領域（低目付領域４０４）を有しており、前記第３領域の外側縁は、前記第１折り線よりも前記幅方向の外側に位置し、前記低目付領域の吸収材料の目付は、前記第３領域の後端縁における吸収材料の目付よりも低く、かつ前記第３領域の前端縁における吸収材料の目付よりも低く、前記二つ折り線は、前記低目付領域に設けられることを要旨とする。 The absorbent article (disposable diaper 10) according to the present disclosure includes a front-rear direction (front-rear direction L), a width direction (width direction W) orthogonal to the front-rear direction, a front waistline region (front waistline region 20), and a rear waistline A pair of first regions for folding the absorbent body, and a crotch region (inseam region 25) located between the region (rear waist region 30), the front waist region and the rear waist region, and extending in the front-rear direction An absorbent body (absorbent body 40) having a fold line (first fold line FL1) and a pair of second fold lines (second fold line FL2), and two absorbent articles extending in the width direction in the crotch region. An absorbent article having two fold lines (two fold lines FL3) for folding into two, the absorbent body being in a folded state in which the absorbent body is folded, between the pair of first fold lines. Located in the width direction of the absorber. A pair of second regions (second regions) located between the region (first region 401) and the first fold line and the second fold line and disposed on the skin facing surface side of the first region, respectively. 402) and a pair of third regions (third regions 403) that are located on the outer side in the width direction than the second fold line and are respectively disposed on the skin facing surface side of the second region, The third area has a low weight area (low weight area 404) extending inward in the width direction from an outer edge of the third area (outer edge 403E2 of the third area) at least in the crotch area, The outer edge of the third region is located outside of the first fold line in the width direction, and the basis weight of the absorbent material in the low basis weight region is based on the basis weight of the absorbent material at the rear end edge of the third region. And lower than the basis weight of the absorbent material at the front edge of the third region, Serial clamshell lines is summarized in that provided in the low basis weight region.

本開示によれば、幅方向に延びる二つ折り線によって折り畳まれた吸収性物品において、漏れの発生を抑制することができる。 According to the present disclosure, it is possible to suppress the occurrence of leakage in the absorbent article folded by the two-fold line extending in the width direction.

一実施形態における使い捨ておむつの平面図である。It is a top view of the disposable diaper in one embodiment. 図１に示したＡ−Ａ線に沿った使い捨ておむつの断面図である。It is sectional drawing of the disposable diaper along the AA line shown in FIG. 図１に示したＢ−Ｂ線に沿った使い捨ておむつの断面図である。It is sectional drawing of the disposable diaper along the BB line shown in FIG. 展開状態の吸収体の平面図である。It is a top view of the absorber of a deployment state. 折り畳み状態の吸収体の平面図である。It is a top view of the absorber of a folded state. 図４のＣ−Ｃ線に沿った吸収体の断面図である。It is sectional drawing of the absorber along CC line of FIG. 使い捨ておむつの着用状態を模式的に示した図である。（ａ）は、比較例に係る使い捨ておむつを示しており、（ｂ）は、本実施形態に係る使い捨ておむつを示している。It is the figure which showed typically the wearing condition of a disposable diaper. (A) has shown the disposable diaper which concerns on a comparative example, (b) has shown the disposable diaper which concerns on this embodiment.

本明細書及び添付図面の記載により、少なくとも以下の事項が明らかとなる。
前後方向と、
前記前後方向と直交する幅方向と、
前胴回り域、後胴回り域、及び前記前胴回り域と前記後胴回り域との間に位置する股下域と、
前記前後方向に延び、かつ吸収体を折り畳むための一対の第１折り線及び一対の第２折り線を有する吸収体と、
前記股下域において前記幅方向に延び、かつ吸収性物品を二つに折り畳むための二つ折り線と、を備える吸収性物品であって、
前記吸収体は、前記吸収体が折り畳まれた折り畳み状態において、
前記一対の第１折り線の間に位置し、前記吸収体の前記幅方向の中央を含む第１領域と、
前記第１折り線と前記第２折り線との間に位置し、前記第１領域の肌対向面側にそれぞれ配置される一対の第２領域と、
前記第２折り線よりも前記幅方向の外側において前記第２領域の肌対向面側にそれぞれ配置される一対の第３領域と、を有し、
前記第３領域は、少なくとも前記股下域において前記第３領域の外側縁から前記幅方向の内側に延びる低目付領域を有しており、
前記第３領域の外側縁は、前記第１折り線よりも前記幅方向の外側に位置し、
前記低目付領域の吸収材料の目付は、前記第３領域の後端縁における吸収材料の目付よりも低く、かつ前記第３領域の前端縁における吸収材料の目付よりも低く、
前記二つ折り線は、前記低目付領域に設けられる、吸収性物品。 At least the following matters will become apparent from the description of the present specification and the accompanying drawings.
Forward and backward,
A width direction orthogonal to the front-rear direction;
A front waistline region, a back waistline region, and a crotch region located between the front waistline region and the back waistline region;
An absorbent body extending in the front-rear direction and having a pair of first fold lines and a pair of second fold lines for folding the absorbent body;
A bi-fold line for extending in the width direction in the crotch region and folding the absorbent article in two, and an absorbent article comprising:
In the folded state in which the absorber is folded,
A first region located between the pair of first fold lines and including a center in the width direction of the absorber;
A pair of second regions located between the first fold line and the second fold line and disposed on the skin facing surface side of the first region,
A pair of third regions respectively disposed on the skin facing surface side of the second region outside the second fold line in the width direction;
The third region has a low weight area extending from the outer edge of the third region to the inside in the width direction at least in the crotch region,
The outer edge of the third region is located outside the first fold line in the width direction,
The basis weight of the absorbent material in the low weight area is lower than the basis weight of the absorbent material at the rear edge of the third area and lower than the weight of the absorbent material at the front edge of the third area,
The bi-fold line is an absorbent article provided in the low weight area.

吸収性物品は、着用者に装着されると、着用者の両足によって挟まれる。吸収性物品には、幅方向外側から幅方向内側に向かう力がかかる。この幅方向外側から幅方向内側に向かう力は、第３領域の外側縁にかかる。第３領域の外側縁に幅方向外側から幅方向内側に向かう力がかかると、第３領域の内側縁には、その反力として、幅方向内側から幅方向外側に向かう力が第２領域側からかかる。すなわち、第３領域には、幅方向外側から幅方向内側に向かう力と、幅方向内側から幅方向外側に向かう力と、が作用する。このように相反する力がかかることにより、第３領域において二つ折り線によって厚み方向に圧縮された部分において、圧縮されて硬化した部分の吸収材料がほぐされ、剛性が低下する。 When the absorbent article is attached to the wearer, the absorbent article is sandwiched between the wearer's legs. A force directed from the outer side in the width direction to the inner side in the width direction is applied to the absorbent article. This force from the outer side in the width direction toward the inner side in the width direction is applied to the outer edge of the third region. When a force from the outer side in the width direction toward the inner side in the width direction is applied to the outer edge of the third region, a force from the inner side in the width direction toward the outer side in the width direction is applied to the inner edge of the third region as the reaction force Take from. That is, in the third region, a force from the outside in the width direction to the inside in the width direction and a force from the inside in the width direction to the outside in the width direction act. By applying the opposite forces in this manner, in the portion compressed in the thickness direction by the double fold line in the third region, the absorbent material in the compressed and hardened portion is loosened, and the rigidity is lowered.

このとき、股下域には、低目付領域が設けられているため、股下域の第３領域には、前胴回り域の第３領域及び後胴回り域の第３領域と比較して、この幅方向外側から幅方向内側に向かう力の影響を受けやすくなる。幅方向外側から幅方向内側に向かう力の影響を受け易いことにより、その反力も強くなり、吸収体の剛性を低下させる効果も強くなる。低目付領域に二つ折り線が設けられているため、二つ折り線によって硬くなった吸収体の剛性を低下させることができる。 At this time, since the low-weight area is provided in the crotch region, the third region in the crotch region has the width direction compared to the third region in the front waistline region and the third region in the rear waistline region. It becomes easy to be affected by the force from the outside toward the inside in the width direction. By being easily influenced by the force from the outer side in the width direction toward the inner side in the width direction, the reaction force becomes stronger, and the effect of reducing the rigidity of the absorbent body becomes stronger. Since the fold line is provided in the low weight area, the rigidity of the absorber hardened by the fold line can be reduced.

よって、着用時に二つ折り線が設けられた吸収体が着用者の肌から離れることを抑制し、吸収体を体に密着させることができる。体液の引き込み性を向上させ、漏れの発生を抑制することができる。 Therefore, it can suppress that the absorber provided with the double fold line at the time of wear leaves | separates from a wearer's skin, and can adhere an absorber to a body. The body fluid drawability can be improved and the occurrence of leakage can be suppressed.

かかる吸収性物品であって、
前記低目付領域の内側縁は、前記折り畳み状態において、前記第２折り線よりも前記幅方向の外側に位置することが望ましい。 Such an absorbent article,
It is desirable that an inner edge of the low weight area is located outside the second fold line in the width direction in the folded state.

このような吸収性物品によれば、低目付領域の内側縁が第２折り線よりも幅方向の外側に位置するため、着用時に幅方向外側から幅方向内側に向かう力は、低目付領域のみならず、第３領域における低目付領域以外の領域及び第１領域にかかる。そのため、第３領域の幅方向全域に低目付領域が配置された構成と比較して、第１領域の当たりを和らげることができ、第１領域の意図しない変形及び吸収体全体の幅入りすることを防ぐことができる。吸収体の変形による漏れを抑制できる。 According to such an absorbent article, since the inner edge of the low weight area is located on the outer side in the width direction with respect to the second fold line, the force from the outer side in the width direction toward the inner side in the width direction during wearing is only in the low weight area. Instead, the first region covers the region other than the low weight area in the third region. Therefore, compared with the configuration in which the low-weight area is arranged in the entire width direction of the third area, the hit of the first area can be reduced, and the unintended deformation of the first area and the width of the entire absorber are included. Can be prevented. Leakage due to deformation of the absorber can be suppressed.

かかる吸収性物品であって、
前記低目付領域の内側縁は、前記折り畳み状態において、前記第１折り線よりも前記幅方向の外側に位置することが望ましい。 Such an absorbent article,
It is desirable that an inner edge of the low weight area is located outside the first fold line in the width direction in the folded state.

このような吸収性物品によれば、低目付領域の内側縁が第１折り線よりも幅方向の外側に位置するため、着用時に両足によって挟まれた際に、第１領域よりも先に第３領域の低目付領域の内側縁（第３領域における低目付領域以外の領域）に当たる。よって、第３領域における低目付領域以外の領域に幅方向外側から幅方向の内側に向かう力が強くかかり、二つ折り線によって硬くなった吸収体の剛性を低下させる効果をより発揮できる。 According to such an absorbent article, since the inner edge of the low weight area is located on the outer side in the width direction with respect to the first fold line, when sandwiched between both feet when worn, the first edge is first before the first area. It corresponds to the inner edge of the three low-weight areas (area other than the low-weight areas in the third area). Therefore, a force from the outer side in the width direction toward the inner side in the width direction is strongly applied to the region other than the low weight area in the third region, and the effect of reducing the rigidity of the absorber hardened by the double fold line can be exhibited.

また、着用時に両足によって挟まれた際に、第１領域が先に当たらないため、吸収体全体が幅入りすることを防ぐことができる。なお、第１領域よりも先に第３領域における低目付領域以外の領域に足が当たっても、第３領域における低目付領域以外の領域は、幅方向内側から幅方向外側に向かう力を第２領域側から受けるため、幅入りし難い。よって、吸収体全域が意図しない変形することを抑制し、吸収体の変形による漏れを抑制できる。 Moreover, when it is pinched by both feet at the time of wearing, since the 1st field does not hit first, it can prevent that the whole absorber enters into width. Note that even if the foot hits an area other than the low weight area in the third area before the first area, the area other than the low weight area in the third area applies a force from the inner side in the width direction to the outer side in the width direction. Since it is received from the two regions, it is difficult to enter the width. Therefore, it can suppress that the absorber whole region deform | transforms unintentionally, and can suppress the leak by the deformation | transformation of an absorber.

かかる吸収性物品であって、
前記低目付領域は、前記幅方向の長さが最大となる幅広部を有しており、
前記二つ折り線は、前記幅広部に設けられることが望ましい。 Such an absorbent article,
The low weight area has a wide portion where the length in the width direction is maximum,
The fold line is preferably provided in the wide part.

このような吸収性物品によれば、幅広部には、幅方向外側から幅方向内側に向かう力が最も強くかかる。当該幅広部に二つ折り線が設けられているため、二つ折り線によって硬くなった吸収体の剛性を効果的に低下させることができる。二つ折り線によって硬くなった吸収体の剛性を低下させて、吸収体を体により密着させることができる。体液の引き込み性を向上させ、漏れの発生をより抑制することができる。 According to such an absorbent article, the force from the outer side in the width direction toward the inner side in the width direction is most strongly applied to the wide portion. Since the fold line is provided in the wide part, the rigidity of the absorber hardened by the fold line can be effectively reduced. The rigidity of the absorber hardened by the double fold line can be reduced, and the absorber can be brought into close contact with the body. The body fluid drawability can be improved and the occurrence of leakage can be further suppressed.

かかる吸収性物品であって、
前記吸収材料を覆うコアラップを有し、
前記コアラップは、前記第１領域、前記第２領域及び前記第３領域を跨ることが望ましい。 Such an absorbent article,
Having a core wrap covering the absorbent material;
The core wrap preferably extends over the first region, the second region, and the third region.

このような吸収性物品によれば、コアラップが第１領域、第２領域及び第３領域を跨っているため、第１領域、第２領域及び第３領域のそれぞれにかかる力を伝わり易くすることができる。そのため、幅方向外側から幅方向内側に向かう力が第３領域に掛かった際に、当該力の反力が第２領域から第３領域に伝わり易く、吸収体の剛性を低下させる効果を発揮し易くなる。 According to such an absorbent article, since the core wrap straddles the first region, the second region, and the third region, it is easy to transmit the force applied to each of the first region, the second region, and the third region. Can do. Therefore, when a force directed from the outside in the width direction to the inside in the width direction is applied to the third region, the reaction force of the force is easily transmitted from the second region to the third region, and the effect of reducing the rigidity of the absorber is exhibited. It becomes easy.

かかる吸収性物品であって、
前記折り畳み状態において、前記第２領域の肌対向面と前記第３領域の非肌対向面とが接合されていないことが望ましい。 Such an absorbent article,
In the folded state, it is desirable that the skin facing surface of the second region and the non-skin facing surface of the third region are not joined.

このような吸収性物品によれば、第２領域の肌対向面と第３領域の非肌対向面とが接合されていないため、第３領域と第２領域とで相反する方向の力がかかり易くなる。よって、幅方向外側から幅方向内側に向かう力が加えられた際に、当該力の反力が発生し易く、吸収体の剛性を低下させる効果を発揮し易くなる。 According to such an absorbent article, since the skin facing surface of the second region and the non-skin facing surface of the third region are not joined, forces in opposite directions are applied between the third region and the second region. It becomes easy. Therefore, when a force directed from the outer side in the width direction toward the inner side in the width direction is applied, a reaction force of the force is easily generated, and the effect of reducing the rigidity of the absorber is easily achieved.

また、第３領域の外側縁に幅方向外側から幅方向内側に向かう力がかかると、左右の第３領域同士が近づくように変形し、左右の第２領域が肌側に立ち上がるように変形する。左右の第２領域間に空間を形成し、当該空間によって排泄物を保持し易くなる。よって、排泄物の漏れを更に抑制できる。 Further, when a force from the outer side in the width direction toward the inner side in the width direction is applied to the outer edge of the third region, the left and right third regions are deformed so as to approach each other, and the left and right second regions are deformed so as to stand on the skin side. . A space is formed between the left and right second regions, and the excrement can be easily held by the space. Therefore, it is possible to further suppress excrement leakage.

かかる吸収性物品であって、
前記折り畳み状態において、前記第１領域、前記第２領域及び前記第３領域が重なった重畳部の少なくとも一部では、前記第１領域の肌対向面と前記第２領域の非肌対向面とが接合されていることが望ましい。 Such an absorbent article,
In the folded state, the skin facing surface of the first region and the non-skin facing surface of the second region are at least part of the overlapping portion where the first region, the second region, and the third region overlap. It is desirable to be joined.

このような吸収性物品によれば、第１領域の肌対向面と前記第２領域の非肌対向面とが接合されていることにより、吸収体の折り構造を維持することができる。第１領域、第２領域及び第３領域の３つの領域で排泄物を効率よく吸収し、排泄物の漏れを抑制できる。 According to such an absorbent article, the folded structure of the absorber can be maintained by joining the skin facing surface of the first region and the non-skin facing surface of the second region. The excrement can be efficiently absorbed in the three areas of the first area, the second area, and the third area, and the leakage of excrement can be suppressed.

かかる吸収性物品であって、
前記折り畳み状態において、二つ折り線が設けられた領域では、前記第１領域の肌対向面と前記第２領域の非肌対向面とは、接合されていないことが望ましい。 Such an absorbent article,
In the folded state, it is preferable that the skin facing surface of the first region and the non-skin facing surface of the second region are not joined in the region where the folding line is provided.

このような吸収性物品によれば、二つ折り線が設けられた領域には、第１領域と第２領域の接合によって硬化した部分が形成されないため、二つ折り線が設けられた領域における剛性が高くなることを抑制できる。よって、吸収性物品を着用者の股下に沿って配置でき、排泄物の漏れを抑制できる。また、二つ折り線が配置された領域における剛性が低くなることにより、装着時の違和感を抑制できる。 According to such an absorbent article, in the region where the fold line is provided, a portion hardened by joining the first region and the second region is not formed. It can suppress becoming high. Therefore, an absorptive article can be arranged along a wearer's inseam, and a leak of excrement can be controlled. Moreover, the rigidity in the area | region where a fold line is arrange | positioned becomes low, and the discomfort at the time of mounting | wearing can be suppressed.

＝＝＝本実施の形態に係る吸収性物品について＝＝＝
次に、本発明に係る吸収性物品としての使い捨ておむつの実施形態について、図面を参照しながら説明する。なお、以下の図面の記載において、同一または類似の部分には、同一または類似の符号を付している。ただし、図面は模式的なものであり、各寸法の比率などは現実のものとは異なることに留意すべきである。したがって、具体的な寸法などは以下の説明を参酌して判断すべきである。また、図面相互間においても互いの寸法の関係や比率が異なる部分が含まれ得る。 === About the absorbent article which concerns on this Embodiment ===
Next, an embodiment of a disposable diaper as an absorbent article according to the present invention will be described with reference to the drawings. In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals. However, it should be noted that the drawings are schematic and ratios of dimensions and the like are different from actual ones. Accordingly, specific dimensions and the like should be determined in consideration of the following description. Moreover, the part from which the relationship and ratio of a mutual dimension differ also in between drawings may be contained.

（１）使い捨ておむつの全体概略構成
図１は、本実施形態に係る使い捨ておむつ１０の展開状態の平面図である。図２は、図１に示したＡ−Ａ線に沿った使い捨ておむつ１０の断面図である。図３は、図１に示したＢ−Ｂ線に沿った使い捨ておむつの断面図である。図４は、展開状態の吸収体の平面図である。図５は、折り畳み状態の吸収体の平面図である。図６は、図４に示すＣ−Ｃ線に沿った吸収体の断面図である。図１に示す平面図は、使い捨ておむつを構成するトップシート５０及びサイドシート７０等の皺が形成されない状態まで、レッグ伸縮部７５及び漏防カフの弾性部材７７を伸長させた状態の図である。 (1) Whole schematic structure of disposable diaper FIG. 1: is a top view of the unfolded state of the disposable diaper 10 which concerns on this embodiment. FIG. 2 is a cross-sectional view of the disposable diaper 10 taken along the line AA shown in FIG. FIG. 3 is a cross-sectional view of the disposable diaper along the line BB shown in FIG. FIG. 4 is a plan view of the absorbent body in a developed state. FIG. 5 is a plan view of the folded absorbent body. FIG. 6 is a cross-sectional view of the absorber along the line CC shown in FIG. The plan view shown in FIG. 1 is a view showing a state in which the leg stretchable portion 75 and the elastic member 77 of the leak-proof cuff are extended until the ridges such as the topsheet 50 and the sidesheet 70 constituting the disposable diaper are not formed. .

使い捨ておむつ１０は、前胴回り域２０と、股下域２５と、後胴回り域３０と、を有する。前胴回り域２０は、着用者の前胴回り部（腹部分）と接する部分である。また、後胴回り域３０は、着用者の後胴回り部（背部分）と接する部分である。股下域２５は、前胴回り域２０と後胴回り域３０との間に位置し、脚回り開口部３５が設けられる領域である。脚回り開口部３５は、使い捨ておむつの外側縁に設けられており、使い捨ておむつが着用者に着用された状態で着用者の脚回りに沿って配置される部分である。なお、外側縁は、幅方向の外側端であり、内側縁は、幅方向の内側端である。 The disposable diaper 10 has a front waistline region 20, a crotch region 25, and a rear waistline region 30. The front waistline region 20 is a portion in contact with the wearer's front waistline portion (abdomen portion). Moreover, the back waistline area 30 is a part which contacts a wearer's back waistline part (back part). The crotch region 25 is a region that is located between the front waistline region 20 and the rear waistline region 30 and is provided with a leg opening 35. The leg opening 35 is provided at the outer edge of the disposable diaper, and is a portion that is disposed around the leg of the wearer while the disposable diaper is worn by the wearer. The outer edge is an outer end in the width direction, and the inner edge is an inner end in the width direction.

なお、本実施形態では、前胴回り域２０から後胴回り域３０に向かう方向を前後方向Ｌと呼び、前後方向Ｌと直交する方向を幅方向Ｗと呼び、着用者の肌対向面側Ｔ１と、肌対向面側Ｔ１と反対側であり、着用者の非肌対向面側Ｔ２と、を含む方向を厚み方向Ｔと呼ぶ。 In this embodiment, the direction from the front waistline region 20 to the rear waistline region 30 is referred to as the front-rear direction L, the direction orthogonal to the front-rear direction L is referred to as the width direction W, and the skin facing surface side T1 of the wearer, The direction opposite to the skin facing surface side T1 and including the non-skin facing surface side T2 of the wearer is referred to as a thickness direction T.

使い捨ておむつ１０は、吸収体４０と、吸収体４０の肌対向面側Ｔ１に配置される肌面シートと、吸収体４０の非肌対向面側Ｔ２に配置される非肌面シートと、を少なくとも有する。吸収体４０は、少なくとも股下域２５に配置される。図６に示すように、吸収体４０は、吸収コア４０ａと、コアラップ４０ｂと、を有する。吸収コア４０ａは、従来の使い捨ておむつと同様の材料によって構成でき、粉砕パルプや高吸収ポリマー（ＳＡＰ）などの吸収材料を含んでおり、公知の部材や材料を用いて適宜構成することができる。 The disposable diaper 10 includes at least an absorbent body 40, a skin sheet disposed on the skin facing surface side T1 of the absorbent body 40, and a non-skin surface sheet disposed on the non-skin facing surface side T2 of the absorbent body 40. Have. The absorber 40 is disposed at least in the crotch region 25. As shown in FIG. 6, the absorber 40 has the absorption core 40a and the core wrap 40b. The absorbent core 40a can be made of a material similar to that of a conventional disposable diaper, includes an absorbent material such as pulverized pulp or a superabsorbent polymer (SAP), and can be appropriately formed using a known member or material.

コアラップ４０ｂは、吸収材料である吸収コア４０ａを覆うシートである。コアラップ４０ｂは、透液性を有する各種の繊維不織布もしくはティッシュによって構成される。吸収体４０については、後述にて詳細に説明する。 The core wrap 40b is a sheet that covers the absorbent core 40a that is an absorbent material. The core wrap 40b is composed of various fiber nonwoven fabrics or tissues having liquid permeability. The absorber 40 will be described in detail later.

肌面シートは、トップシート５０と、サイドシート７０と、を有する。トップシート５０は、不織布や織物などの液透過性のシートによって形成される。トップシート５０は、着用者の肌に当接するシートである。 The skin sheet includes a top sheet 50 and a side sheet 70. The top sheet 50 is formed of a liquid permeable sheet such as a nonwoven fabric or a woven fabric. The top sheet 50 is a sheet that comes into contact with the skin of the wearer.

サイドシート７０は、トップシート５０の外側縁を覆い、トップシート５０よりも幅方向外側に延出する。サイドシート７０の内側縁は、幅方向外側に折り返されており、２層のサイドシート７０間に前後方向に伸縮する弾性部材７７が配置される。サイドシート７０と弾性部材７７とは、漏防カフを構成する。 The side sheet 70 covers the outer edge of the top sheet 50 and extends outward in the width direction from the top sheet 50. The inner edge of the side sheet 70 is folded outward in the width direction, and an elastic member 77 that expands and contracts in the front-rear direction is disposed between the two side sheets 70. The side seat 70 and the elastic member 77 constitute a leakage cuff.

非肌面シートは、少なくともバックシート６０ａと外装シート６０を有する。バックシート６０ａは、液不透過性を有し、吸収コア４０ａ及びコアラップ４０ｂの非肌対向面側に配置される。外装シート６０は、バックシート６０ａの非肌対向面側に配置される。 The non-skin surface sheet has at least a back sheet 60 a and an exterior sheet 60. The back sheet 60a has liquid impermeability and is disposed on the non-skin facing surface side of the absorbent core 40a and the core wrap 40b. The exterior sheet 60 is disposed on the non-skin facing surface side of the back sheet 60a.

サイドシート７０には、ファスニングテープ９０が備えられる。ファスニングテープ９０は、後胴回り域３０において、幅方向Ｗに沿って延び、前胴回り域２０のターゲット部９５に止着されることにより、使い捨ておむつ１０を着用者の身体に保持する。ターゲット部９５は、一対のファスニングテープ９０がそれぞれ止着するように構成されている。吸収体４０の幅方向の外側には、脚回り開口部３５の周囲に形成され、前後方向Ｌに伸縮可能なレッグ伸縮部７５が備えられる。 The side sheet 70 is provided with a fastening tape 90. The fastening tape 90 extends along the width direction W in the rear waistline region 30 and is fastened to the target portion 95 of the front waistline region 20 to hold the disposable diaper 10 on the wearer's body. The target portion 95 is configured such that the pair of fastening tapes 90 are fixed to each other. On the outer side in the width direction of the absorber 40, there is provided a leg expansion / contraction portion 75 that is formed around the leg opening 35 and that can expand and contract in the front-rear direction L.

使い捨ておむつ１０は、幅方向に延びる二つ折り線ＦＬ３を有する。二つ折り線ＦＬ３は、吸収性物品を折り畳むための折り線であり、吸収性物品を二つに折り畳んだ状態で形成される。二つ折り線は、股下域２５に配置される。使い捨ておむつ１０は、使用前の状態で二つ折り線ＦＬ３を基点に二つに折り畳まれている。使い捨ておむつ１０は、肌対向面同士が向き合うように二つに折り畳まれている。二つ折り線ＦＬ３は、着用者に対して谷折りである。よって、使い捨ておむつ１０には、着用者から離れるような折り癖が形成される。なお、本実施の形態の二つ折り線ＦＬ３は、使い捨ておむつ１０の前後方向Ｌの中心に設けられている。二つ折り線ＦＬ３は、使い捨ておむつの前後方向の中心に対してずれていてもよい。二つ折り線ＦＬ３が使い捨ておむつの前後方向の中心に対してずれていることにより、使い捨ておむつ１０の前後方向Ｌの中心からずれた位置に折り癖を設けることができる。また、使い捨ておむつ１０は、使い捨ておむつ１０の外側縁（サイドフラップ部分）が幅方向の内側に向かって折り畳まれた後に、二つ折り線ＦＬ３を基点に折り畳まれていてもよい。このような構成によれば、二つ折り線ＦＬ３の全体が谷折りにならず、二つ折り線ＦＬ３の一部は、山折りとなり、着用者の肌に近づくような折り癖となる。 The disposable diaper 10 has a fold line FL3 extending in the width direction. The double fold line FL3 is a fold line for folding the absorbent article, and is formed in a state where the absorbent article is folded in two. The double fold line is disposed in the crotch region 25. The disposable diaper 10 is folded in two with a fold line FL3 as a base point before use. The disposable diaper 10 is folded in two so that the skin facing surfaces face each other. The double fold line FL3 is a valley fold with respect to the wearer. Therefore, the disposable diaper 10 is formed with a fold away from the wearer. In addition, the double fold line FL3 of this Embodiment is provided in the center of the front-back direction L of the disposable diaper 10. FIG. The double fold line FL3 may be shifted from the center of the disposable diaper in the front-rear direction. Since the double fold line FL3 is displaced with respect to the center of the disposable diaper in the front-rear direction, the folding fold can be provided at a position shifted from the center of the disposable diaper 10 in the front-rear direction L. Further, the disposable diaper 10 may be folded with the fold line FL3 as a base point after the outer edge (side flap portion) of the disposable diaper 10 is folded inward in the width direction. According to such a configuration, the entire fold line FL3 is not valley-folded, and a part of the fold line FL3 becomes a mountain fold, which is a crease that approaches the wearer's skin.

（２）吸収体の構成
次いで、吸収体４０の構成について詳細に説明する。吸収体４０は、図４及び図６に示すように、展開状態において１枚のシート状である。吸収体４０は、前後方向に延びる一対の第１折り線ＦＬ１と、前後方向に延びる一対の第２折り線ＦＬ２と、を有する。一対の第１折り線ＦＬ１及び一対の第２折り線ＦＬ２は、吸収体を折り畳むための折り線であり、吸収体を折り畳んだ状態で形成される。吸収体４０は、一対の第１折り線ＦＬ１と一対の第２折り線ＦＬ２とによって４か所で折られており、複数層に積層されている。一対の第１折り線ＦＬ１同士、一対の第２折り線ＦＬ２同士、及び第１折り線ＦＬ１と第２折り線ＦＬ２は、それぞれ幅方向において離間している。図４に示すように、吸収体４０の展開状態（第１折り線ＦＬ１及び第２折り線ＦＬ２によって折り畳まれていない状態）において、第２折り線ＦＬ２は、第１折り線ＦＬ１よりも幅方向の外側に位置する。図５に示すように、吸収体の折り畳み状態（第１折り線ＦＬ１及び第２折り線ＦＬ２によって折り畳まれた状態）において、第２折り線ＦＬ２は、第１折り線ＦＬ１よりも幅方向の内側に位置する。 (2) Configuration of Absorber Next, the configuration of the absorber 40 will be described in detail. As shown in FIGS. 4 and 6, the absorber 40 is in the form of a single sheet in the deployed state. The absorber 40 has a pair of first fold lines FL1 extending in the front-rear direction and a pair of second fold lines FL2 extending in the front-rear direction. The pair of first fold lines FL1 and the pair of second fold lines FL2 are fold lines for folding the absorber, and are formed in a state in which the absorber is folded. The absorber 40 is folded at four locations by a pair of first fold lines FL1 and a pair of second fold lines FL2, and is laminated in a plurality of layers. The pair of first fold lines FL1, the pair of second fold lines FL2, and the first fold line FL1 and the second fold line FL2 are separated from each other in the width direction. As shown in FIG. 4, the second fold line FL2 is wider than the first fold line FL1 in the unfolded state of the absorbent body 40 (the state where the absorber 40 is not folded by the first fold line FL1 and the second fold line FL2). Located outside of. As shown in FIG. 5, in the folded state of the absorber (folded by the first fold line FL1 and the second fold line FL2), the second fold line FL2 is inside in the width direction from the first fold line FL1. Located in.

吸収体４０は、折り畳み状態において、一対の第１折り線ＦＬ１の間に位置する第１領域４０１と、第１折り線ＦＬ１と第２折り線ＦＬ２との間に位置する一対の第２領域４０２と、第２折り線ＦＬ２よりも幅方向の外側に位置する一対の第３領域４０３と、を有する。図４及び図６に示す展開状態において、第１領域４０１は、吸収体４０の幅方向Ｗの中央を含み、一対の第１折り線ＦＬ１の間の領域である。第２領域４０２は、展開状態において第１領域４０１を挟んで両側に位置し、第１折り線ＦＬ１と第２折り線ＦＬ２の間の領域である。第３領域４０３は、展開状態において第１領域４０１及び一対の第２領域４０２を挟んで両側に位置し、第２折り線ＦＬ２よりも幅方向外側の間の領域である。第１領域４０１、第２領域４０２、及び第３領域４０３は、幅方向Ｗにおいて連続している。 In the folded state, the absorbent body 40 has a first region 401 located between the pair of first fold lines FL1 and a pair of second regions 402 located between the first fold line FL1 and the second fold line FL2. And a pair of third regions 403 located on the outer side in the width direction than the second fold line FL2. 4 and 6, the first region 401 is a region between the pair of first fold lines FL1 including the center in the width direction W of the absorber 40. The second region 402 is located on both sides of the first region 401 in the expanded state, and is a region between the first fold line FL1 and the second fold line FL2. The third region 403 is a region located on both sides of the first region 401 and the pair of second regions 402 in the unfolded state and between the second fold line FL2 and the outer side in the width direction. The first region 401, the second region 402, and the third region 403 are continuous in the width direction W.

吸収体４０は、第１折り線ＦＬ１によって着用者に対して谷折りされ、かつ第２折り線ＦＬ２によって山折りされる。吸収体４０が折り畳まれた折り畳み状態で、第１領域４０１の肌対向面側に第２領域４０２が配置され、第２領域４０２の肌対向面側に第３領域４０３が配置されている。第３領域４０３は、少なくとも一部が第２領域４０２の肌対向面側に配置されていればよく、第２領域４０２の肌対向面側に配置されない部分を有するように構成されたものも含む概念である。吸収体４０は、第１折り線ＦＬ１及び第２折り線ＦＬ２によって折り畳まれるため、幅方向の寸法がコンパクトになる。 The absorber 40 is valley-folded with respect to the wearer by the first fold line FL1, and is mountain-folded by the second fold line FL2. In the folded state in which the absorbent body 40 is folded, the second region 402 is disposed on the skin facing surface side of the first region 401, and the third region 403 is disposed on the skin facing surface side of the second region 402. The third region 403 only needs to be at least partially disposed on the skin facing surface side of the second region 402, and includes those configured to have a portion that is not disposed on the skin facing surface side of the second region 402. It is a concept. Since the absorber 40 is folded by the first fold line FL1 and the second fold line FL2, the dimension in the width direction becomes compact.

折り畳み状態で一対の第２折り線ＦＬ２は、幅方向Ｗにおいて離間している。第３領域４０３の外側縁４０３Ｅ２は、第１折り線ＦＬ１よりも幅方向Ｗの外側に位置する。第１折り線ＦＬ１よりも幅方向の外側には、第３領域４０３のみが配置される。折り畳み状態の吸収体４０の外側縁４０Ｅは、着用者の脚回りに配置される。吸収体４０の外側縁４０Ｅは、第３領域４０３の外側縁４０３Ｅ２である。折り畳み状態の吸収体４０の外側縁４０Ｅには、第３領域４０３のみが配置され、比較的厚みが薄い。よって、着用者の脚回りにおける違和感を低減できる。第３領域４０３の外側縁４０３Ｅ２は、後述する低目付領域４０４の外側縁４０４Ｅ２と高目付領域４０５の外側縁４０５Ｅ２を含む。 The pair of second fold lines FL2 are separated in the width direction W in the folded state. The outer edge 403E2 of the third region 403 is located outside the first fold line FL1 in the width direction W. Only the third region 403 is disposed outside the first fold line FL1 in the width direction. The outer edge 40E of the folded absorbent body 40 is arranged around the wearer's leg. The outer edge 40E of the absorber 40 is the outer edge 403E2 of the third region 403. Only the third region 403 is disposed on the outer edge 40E of the folded absorbent body 40 and is relatively thin. Therefore, the uncomfortable feeling around the wearer's leg can be reduced. The outer edge 403E2 of the third area 403 includes an outer edge 404E2 of a low weight area 404 and an outer edge 405E2 of a high weight area 405, which will be described later.

第１折り線ＦＬ１と第２折り線ＦＬ２の間は、第１領域４０１、第２領域４０２、及び第３領域４０３が配置される重畳部４５を構成する。重畳部４５は、第１領域４０１、第２領域４０２及び第３領域４０３が積層された部分であり、第１折り線ＦＬ１と第２折り線ＦＬ２の間の部分である。一対の第２折り線ＦＬ２の間には、第１領域４０１のみが配置される。一対の第２折り線ＦＬ２の間は、吸収体４０の厚みが比較的薄く、一対の第２折り線ＦＬ２よりも幅方向の外側の領域と比較して非肌対向面側に凹んでいる。当該凹みによって排泄物を保持したり、排泄物を前後に拡散したりして、吸収能力を高めることができる。 Between the first fold line FL1 and the second fold line FL2, an overlapping portion 45 in which the first region 401, the second region 402, and the third region 403 are disposed is formed. The overlapping portion 45 is a portion where the first region 401, the second region 402, and the third region 403 are stacked, and is a portion between the first fold line FL1 and the second fold line FL2. Only the first region 401 is disposed between the pair of second fold lines FL2. Between the pair of second fold lines FL2, the thickness of the absorber 40 is relatively thin, and is recessed toward the non-skin facing surface side as compared to the outer region in the width direction than the pair of second fold lines FL2. Absorption can be increased by holding the excrement or diffusing excrement back and forth by the dent.

第２領域４０２の吸収材料の目付は、第１領域４０１の吸収材料の目付よりも低く、第３領域４０３の吸収材料の目付よりも低い。具体的には、第１領域４０１は、パルプとＳＡＰを有し、第２領域４０２は、実質的に吸収材料を有しない。第２領域４０２は、設計上のＳＡＰ等の吸収材料の目付が零であるが、製造工程において第１領域等から混入したＳＡＰやパルプを有していてもよい。第１領域４０１のパルプの目付及び第３領域４０３のパルプの目付は、第２領域４０２のパルプの目付よりも高い。また、第２領域４０２は、第１領域４０１等よりも低い目付のパルプを含んでいてもよいし、パルプ及びＳＡＰの両方を含まずにコアラップ４０ｂのみで構成されていてもよく、比較的目付が低く構成されていることにより、第２領域４０２を介して第１領域４０１に体液を円滑に導くことができる。なお、変形例において、第２領域の吸収材料の目付は、第１領域４０１の吸収材料の目付と同じであってもよいし、後述する第３領域４０３の高目付領域４０５の吸収材料の目付と同じであってもよい。 The basis weight of the absorbent material in the second region 402 is lower than the basis weight of the absorbent material in the first region 401 and lower than the basis weight of the absorbent material in the third region 403. Specifically, the first region 401 has pulp and SAP, and the second region 402 has substantially no absorbent material. The second area 402 has a design basis weight of an absorbent material such as SAP, but may have SAP or pulp mixed from the first area or the like in the manufacturing process. The basis weight of the pulp in the first region 401 and the basis weight of the pulp in the third region 403 are higher than the basis weight of the pulp in the second region 402. Moreover, the 2nd area | region 402 may contain the pulp of the fabric weight lower than the 1st area | region 401 grade | etc., May be comprised only by the core wrap 40b without including both a pulp and SAP, and a comparatively basis weight. Is configured to be low, body fluid can be smoothly guided to the first region 401 via the second region 402. In the modification, the basis weight of the absorbent material in the second region may be the same as the basis weight of the absorbent material in the first region 401, or the basis weight of the absorbent material in the high basis weight region 405 of the third region 403 to be described later. It may be the same.

第２領域４０２のパルプの目付が第１領域４０１及び第３領域４０３と比較して低いため、重畳部４５の厚みが厚くなり過ぎることを抑制でき、非肌対向面側に位置する第１領域４０１に体液を導き易くなる。また、第２領域４０２のパルプの目付よりも第１領域４０１のパルプの目付が高いため、第２領域４０２から第１領域４０１に体液が移行し易くなり、非肌対向面側に位置する第１領域４０１に体液を導き易くなる。第１折り線ＦＬ１及び第２折り線ＦＬ２には、パルプの目付の違いによる剛性差が形成される。よって、第１折り線ＦＬ１及び第２折り線ＦＬ２を基点に吸収体４０をより折り畳み易くなる。 Since the fabric weight of the pulp of the 2nd field 402 is low compared with the 1st field 401 and the 3rd field 403, it can control that the thickness of superposition part 45 becomes too thick, and is the 1st field located in the non-skin opposing surface side It becomes easy to guide body fluid to 401. In addition, since the basis weight of the pulp in the first region 401 is higher than the basis weight of the pulp in the second region 402, the body fluid easily moves from the second region 402 to the first region 401, and is located on the non-skin facing surface side. It becomes easy to guide body fluid to one region 401. The first fold line FL1 and the second fold line FL2 have a difference in rigidity due to a difference in the basis weight of the pulp. Therefore, it becomes easier to fold the absorber 40 based on the first fold line FL1 and the second fold line FL2.

第２領域４０２の厚みは、第１領域４０１の厚みよりも薄く、第３領域４０３の厚みよりも薄い。第１折り線ＦＬ１及び第２折り線ＦＬ２は、吸収体４０の厚み及び目付が変化する境界であり、剛性が変化する境界となる。よって、第１折り線ＦＬ１及び第２折り線ＦＬ２を基点に吸収体４０を折り畳み易い。 The thickness of the second region 402 is thinner than the thickness of the first region 401 and thinner than the thickness of the third region 403. The first fold line FL1 and the second fold line FL2 are boundaries where the thickness and basis weight of the absorber 40 change, and are boundaries where the rigidity changes. Therefore, it is easy to fold the absorber 40 from the first fold line FL1 and the second fold line FL2.

第３領域４０３は、第３領域４０３の外側縁４０３Ｅ２から幅方向の内側に延びる低目付領域４０４と、低目付領域４０４以外の領域からなる高目付領域４０５と、を有する。低目付領域４０４は、少なくとも股下域２５に配置される。低目付領域４０４は、股下域２５に設けられており、前胴回り域２０及び後胴回り域３０に設けられていない。なお、低目付領域４０４は、股下域２５を超えて、前胴回り域２０や後胴回り域３０に配置されていてよい。本実施の形態の低目付領域４０４の後端縁は、第３領域４０３の後端縁よりも前方であり、低目付領域４０４の前端縁は、第３領域４０３の前端縁よりも後方である。よって、低目付領域４０４の前後方向の外側には、高目付領域４０５が配置される。 The third area 403 includes a low-weight area 404 that extends inward in the width direction from the outer edge 403E2 of the third area 403, and a high-weight area 405 that includes areas other than the low-weight area 404. The low weight area 404 is disposed at least in the crotch area 25. The low weight area 404 is provided in the crotch region 25 and is not provided in the front waistline region 20 and the back waistline region 30. The low weight area 404 may be disposed in the front waistline area 20 and the rear waistline area 30 beyond the crotch area 25. In this embodiment, the rear edge of the low weight area 404 is forward of the rear edge of the third area 403, and the front edge of the low weight area 404 is behind the front edge of the third area 403. . Therefore, the high weight area 405 is disposed outside the low weight area 404 in the front-rear direction.

低目付領域４０４の吸収材料の目付は、第３領域４０３の後端縁における吸収材料の目付よりも低く、かつ第３領域４０３の前端縁における吸収材料の目付よりも低い。第３領域４０３の後端縁及び第３領域４０３の前端縁は、高目付領域４０５内に位置する。低目付領域４０４の吸収材料の目付は、高目付領域４０５の吸収材料の目付よりも低い。本実施の形態の低目付領域４０４の吸収材料の目付は、実質的に吸収材料を有しない。低目付領域４０４は、設計上のＳＡＰ等の吸収材料の目付が零であるが、製造工程において高目付領域４０５等から混入したＳＡＰやパルプを有していてもよい。低目付領域４０４の吸収材料の目付は、第２領域の吸収材料の目付よりも低くてもよいし、同じであってもよいし、高くてもよい。二つ折り線ＦＬ３は、低目付領域４０４に設けられる。二つ折り線ＦＬ３は、少なくとも低目付領域４０４に設けられていればよく、本実施の形態の二つ折り線ＦＬ３は、低目付領域４０４と高目付領域４０５に跨っている。 The weight of the absorbent material in the low weight area 404 is lower than the weight of the absorbent material at the rear edge of the third area 403 and lower than the weight of the absorbent material at the front edge of the third area 403. The rear edge of the third region 403 and the front edge of the third region 403 are located in the high weight area 405. The basis weight of the absorbent material in the low basis area 404 is lower than the basis weight of the absorbent material in the high basis area 405. The basis weight of the absorbent material in the low basis weight region 404 of the present embodiment has substantially no absorbent material. The low basis weight area 404 has a design basis weight of an absorbent material such as SAP, but may have SAP or pulp mixed from the high basis weight area 405 or the like in the manufacturing process. The basis weight of the absorbent material in the low basis area 404 may be lower, the same as or higher than the basis weight of the absorbent material in the second area. The two-fold line FL3 is provided in the low weight area 404. The double fold line FL3 only needs to be provided at least in the low weight area 404, and the double fold line FL3 of the present embodiment straddles the low weight area 404 and the high weight area 405.

次いで、このように構成された使い捨ておむつが着用された状態の変形態様について説明する。図７は、使い捨ておむつ１０の着用状態を模式的に示した図である。（ａ）は、比較例に係る使い捨ておむつを示しており、（ｂ）は、本実施形態に係る使い捨ておむつを示している。使い捨ておむつは、使用前の状態において二つ折り線ＦＬ３を基点に折り畳まれているため、二つ折り線ＦＬ３による折り癖が形成される。（ａ）に示すように、折り癖が形成された状態の使い捨ておむつ１０は、二つ折り線ＦＬ３を頂点として着用者から離れるように配置される。二つ折り線ＦＬ３が股下域２５に設けられているため、股下域２５が着用者から離れるように変形する。 Subsequently, the deformation | transformation aspect of the state with which the disposable diaper comprised in this way was worn is demonstrated. FIG. 7 is a diagram schematically showing a wearing state of the disposable diaper 10. (A) has shown the disposable diaper which concerns on a comparative example, (b) has shown the disposable diaper which concerns on this embodiment. Since the disposable diaper is folded around the double fold line FL3 in a state before use, a crease is formed by the double fold line FL3. As shown to (a), the disposable diaper 10 in the state in which the folding fold was formed is arrange | positioned so that it may leave | separate from a wearer by making the double fold line FL3 into a vertex. Since the fold line FL3 is provided in the crotch region 25, the crotch region 25 is deformed so as to be separated from the wearer.

（ｂ）は、本実施形態に係る使い捨ておむつ１０を示している。着用時に着用者の両足によって挟まれることにより、使い捨ておむつ１０には、幅方向外側から幅方向内側に向かう力がかかる。この幅方向外側から幅方向内側に向かう力は、第３領域４０３の外側縁４０３Ｅ２にかかる。第３領域４０３の外側縁に幅方向外側から幅方向内側に向かう力がかかると、第３領域４０３の内側縁４０３Ｅ１（第３領域４０３と第２領域４０２の境界）には、その反力として、幅方向内側から幅方向外側に向かう力が第２領域４０２側からかかる。すなわち、第３領域４０３には、幅方向外側から幅方向内側に向かう力と、幅方向内側から幅方向外側に向かう力と、が作用する。このように相反する力がかかることにより、二つ折り線ＦＬ３によって厚み方向Ｔに圧縮されて硬化した部分の吸収材料が第３領域４０３においてほぐされ、剛性が低下する。 (B) has shown the disposable diaper 10 which concerns on this embodiment. The disposable diaper 10 is subjected to a force from the outer side in the width direction toward the inner side in the width direction by being sandwiched between the legs of the wearer during wearing. The force from the outer side in the width direction toward the inner side in the width direction is applied to the outer edge 403E2 of the third region 403. When a force from the outer side in the width direction toward the inner side in the width direction is applied to the outer edge of the third region 403, the inner edge 403E1 (the boundary between the third region 403 and the second region 402) of the third region 403 has a reaction force. A force from the inner side in the width direction toward the outer side in the width direction is applied from the second region 402 side. That is, in the third region 403, a force from the outside in the width direction to the inside in the width direction and a force from the inside in the width direction to the outside in the width direction act. By applying the opposite forces in this way, the absorbent material in the portion compressed and cured in the thickness direction T by the double fold line FL3 is loosened in the third region 403, and the rigidity is lowered.

このとき、股下域２５の第３領域４０３は、前胴回り域２０の第３領域４０３及び後胴回り域の第３領域４０３と比較して幅方向に沿った断面において吸収材料の目付が少ないため、幅方向外側から幅方向内側に向かう力の影響を受けやすくなる。幅方向外側から幅方向内側に向かう力の影響を受け易いことにより、その反力も強くなり、吸収体４０の剛性を低下させる効果も強くなる。低目付領域４０４に二つ折り線ＦＬ３が設けられているため、二つ折り線ＦＬ３によって硬くなった吸収体の剛性を低下させることができる。よって、図７（ｂ）に示すように、二つ折り線ＦＬ３が設けられた吸収体４０が着用者の肌から離れることを抑制し、吸収体４０を体に密着させることができる。これにより、体液の引き込み性を向上させ、漏れの発生を抑制することができる。また、股下域の吸収体の剛性が低下するため、着用時の違和感を抑制できる。 At this time, the third region 403 of the crotch region 25 has less basis weight of the absorbent material in the cross section along the width direction compared to the third region 403 of the front waistline region 20 and the third region 403 of the rear waistline region, It becomes easy to receive the influence of the force which goes to the width direction inner side from the width direction outer side. By being easily influenced by the force from the outer side in the width direction toward the inner side in the width direction, the reaction force becomes strong and the effect of reducing the rigidity of the absorber 40 becomes strong. Since the fold line FL3 is provided in the low weight area 404, the rigidity of the absorbent body hardened by the fold line FL3 can be reduced. Therefore, as shown in FIG.7 (b), it can suppress that the absorber 40 provided with the folding line FL3 leaves | separates from a wearer's skin, and can make the absorber 40 contact | adhere to a body. Thereby, the drawability of a bodily fluid can be improved and generation | occurrence | production of a leak can be suppressed. Moreover, since the rigidity of the absorber in the crotch region is lowered, it is possible to suppress a sense of discomfort during wearing.

低目付領域４０４の内側縁４０４Ｅ１は、吸収体４０が折り畳まれた折り畳み状態において、第２折り線ＦＬ２よりも幅方向Ｗの外側に位置する。よって、低目付領域４０４の幅方向Ｗの内側には、低目付領域４０４に隣接して高目付領域４０５が配置されている。第３領域４０３の内側縁Ｅ１は、高目付領域４０５のみで構成されている。低目付領域４０４の内側縁４０４Ｅ１が第２折り線ＦＬ２よりも幅方向Ｗの外側に位置するため、着用時に幅方向外側から幅方向内側に向かう力は、低目付領域４０４のみならず、高目付領域４０５及び第１領域４０１等にかかる。そのため、第３領域４０３の幅方向全域に低目付領域４０４が設けられた構成と比較して、第１領域４０１の当たりを和らげることができ、第１領域４０１の意図しない変形及び吸収体４０全体が幅入りすることを防ぐことができる。これにより、吸収体４０の意図しない変形や吸収体の幅入りを防ぐことにより、着用者の股下に対して一定の幅で吸収体を配置できる。一定の幅を有する広い面を有する吸収体によって排泄物を吸収でき、排泄物の漏れを抑制できる。 The inner edge 404E1 of the low weight area 404 is located outside of the second fold line FL2 in the width direction W in the folded state in which the absorber 40 is folded. Therefore, the high weight area 405 is disposed adjacent to the low weight area 404 inside the width direction W of the low weight area 404. The inner edge E1 of the third region 403 is configured only by the high weighted region 405. Since the inner edge 404E1 of the low weight area 404 is located outside the second fold line FL2 in the width direction W, the force directed from the width direction outer side to the width direction inner side when worn is not only the low weight area 404 but also the high weight area. It covers the area 405 and the first area 401. Therefore, compared with the configuration in which the low weight area 404 is provided in the entire width direction of the third area 403, the hit of the first area 401 can be reduced, and the unintended deformation of the first area 401 and the entire absorber 40 can be reduced. Can be prevented from entering the width. Thereby, an absorber can be arrange | positioned with a fixed width | variety with respect to a wearer's inseam by preventing the deformation | transformation and the width | variety of an absorber which the absorber 40 does not intend. Excrement can be absorbed by the absorbent body having a wide surface having a certain width, and excrement leakage can be suppressed.

低目付領域４０４の内側縁４０４Ｅ１は、吸収体４０が折り畳まれた折り畳み状態において、第１折り線ＦＬ１よりも幅方向の外側に位置する。低目付領域４０４の内側縁４０４Ｅ１が第１折り線ＦＬ１よりも幅方向の外側に位置するため、着用時に両足によって挟まれた際に、股下域２５において第１領域４０１よりも先に第３領域４０３の低目付領域４０４の内側縁（低目付領域４０４と高目付領域４０５の境界）に当たる。よって、高目付領域４０５に幅方向外側から幅方向の内側に向かう力が強くかかり、二つ折り線ＦＬ３によって硬くなった吸収体４０の剛性を低下させる効果をより発揮できる。 The inner edge 404E1 of the low weight area 404 is located on the outer side in the width direction with respect to the first fold line FL1 in the folded state in which the absorber 40 is folded. Since the inner edge 404E1 of the low weight area 404 is located on the outer side in the width direction with respect to the first fold line FL1, the third area before the first area 401 in the crotch area 25 when sandwiched by both feet when worn. It corresponds to the inner edge of the low weight area 404 (the boundary between the low weight area 404 and the high weight area 405). Therefore, a strong force is exerted on the high weight area 405 from the outer side in the width direction toward the inner side in the width direction, and the effect of reducing the rigidity of the absorber 40 that has become hard due to the double fold line FL3 can be exhibited.

また、着用時に両足によって挟まれた際に、股下域２５において第３領域４０３よりも先に第１領域４０１が当たらないため、吸収体全体が幅入りすることを防ぐことができる。なお、第１領域４０１よりも先に高目付領域４０５が当たっても、高目付領域４０５には幅方向内側から幅方向外側に向かう力が第２領域４０２側からかかるため、吸収体全体が幅入りすることを防ぐことができる。よって、吸収体全域が幅入りすることを抑制し、横漏れを抑制できる。 Moreover, since it will not hit the 1st area | region 401 ahead of the 3rd area | region 403 in the crotch area 25 when pinched | interposed by both legs at the time of wear, it can prevent that the whole absorber enters into width. Even if the high weight area 405 hits before the first area 401, the high weight area 405 receives a force from the inner side in the width direction toward the outer side in the width direction from the second area 402 side. It can be prevented from entering. Therefore, it can suppress that the absorber whole area enters into width, and can suppress a side leak.

低目付領域４０４は、幅方向の長さが最大となる幅広部４０４Ｍを有する。低目付領域４０４の幅は、幅広部４０４Ｍにおいて最も長く、幅広部４０４Ｍから前後方向の外側に向かって短くなっている。低目付領域４０４は、第３領域４０３の外側縁から幅方向内側に向かって突出する凸形状である。凸形状の頂点は、低目付領域４０４の内側縁４０４Ｅ１であり、低目付領域４０４の前後方向の中心に位置する。幅広部４０４Ｍは、凸形状の頂点を通り、頂点から幅方向に延びる。二つ折り線ＦＬ３は、幅広部４０４Ｍに設けられる。すなわち、低目付領域４０４は、二つ折り線ＦＬ３において最大幅となる。 The low weight area 404 includes a wide portion 404M having a maximum length in the width direction. The width of the low weight area 404 is the longest in the wide portion 404M, and is shorter from the wide portion 404M toward the outside in the front-rear direction. The low weight area 404 is a convex shape that protrudes inward in the width direction from the outer edge of the third area 403. The apex of the convex shape is the inner edge 404E1 of the low weight area 404, and is located at the center of the low weight area 404 in the front-rear direction. The wide portion 404M passes through the convex vertex and extends in the width direction from the vertex. The double fold line FL3 is provided in the wide portion 404M. That is, the low weight area 404 has the maximum width at the fold line FL3.

幅広部４０４Ｍと幅方向において隣接する高目付領域４０５には、幅方向外側から幅方向内側に向かう力の影響を最も強く受ける。当該幅広部４０４Ｍに二つ折り線ＦＬ３が設けられているため、二つ折り線ＦＬ３によって硬くなった吸収体４０の剛性を効果的に低下させることができる。二つ折り線ＦＬ３によって硬くなった吸収体４０の剛性が低下することにより、吸収体４０がより柔軟に変形でき、吸収体４０が体により密着し易くなる。体液の引き込み性を向上させ、漏れの発生をより抑制することができる。 The high basis weight area 405 adjacent to the wide portion 404M in the width direction is most strongly affected by the force from the outer side in the width direction toward the inner side in the width direction. Since the fold line FL3 is provided in the wide part 404M, the rigidity of the absorber 40 that has become hard by the fold line FL3 can be effectively reduced. By reducing the rigidity of the absorbent body 40 that has become hard due to the fold line FL3, the absorbent body 40 can be deformed more flexibly, and the absorbent body 40 can be more closely attached to the body. The body fluid drawability can be improved and the occurrence of leakage can be further suppressed.

図２及び図３に示すように、吸収体４０が折り畳まれた折り畳み状態において、第１領域４０１、第２領域４０２及び第３領域４０３が重なった重畳部４５では、第２領域４０２の肌対向面と第３領域４０３の非肌対向面とが接合されていない。第２領域４０２の肌対向面と第３領域４０３の非肌対向面とが接合されていないため、第３領域４０３と第２領域４０２とで相反する方向の力がかかり易くなる。よって、幅方向外側から幅方向内側に向かう力が加えられた際に、当該力の反力が発生し易く、吸収体の剛性を低下させる効果を発揮し易くなる。また、第３領域４０３の外側縁４０３Ｅ２に幅方向外側から幅方向内側に向かう力がかかると、左右の第３領域４０３同士が近づくように変形し、左右の第２領域４０２が肌側に立ち上がるように変形する。左右の第２領域４０２間に空間が形成され、当該空間によって排泄物を保持することができる。よって、排泄物の漏れを更に抑制できる。 As shown in FIGS. 2 and 3, in the folded state in which the absorbent body 40 is folded, the overlapping portion 45 where the first region 401, the second region 402, and the third region 403 overlap is opposed to the skin of the second region 402. The surface and the non-skin facing surface of the third region 403 are not joined. Since the skin facing surface of the second region 402 and the non-skin facing surface of the third region 403 are not joined, it is easy to apply forces in opposite directions between the third region 403 and the second region 402. Therefore, when a force directed from the outer side in the width direction toward the inner side in the width direction is applied, a reaction force of the force is easily generated, and the effect of reducing the rigidity of the absorber is easily achieved. In addition, when a force from the outer side in the width direction toward the inner side in the width direction is applied to the outer edge 403E2 of the third region 403, the left and right third regions 403 are deformed so that the left and right second regions 402 rise to the skin side. It deforms as follows. A space is formed between the left and right second regions 402, and excrement can be held by the space. Therefore, it is possible to further suppress excrement leakage.

吸収体４０が折り畳まれた折り畳み状態において、重畳部４５の少なくとも一部では、第１領域４０１の肌対向面と第２領域４０２の非肌対向面とが接合されている。第１領域４０１の肌対向面と第２領域４０２の非肌対向面とが接合されていることにより、吸収体の折り構造を維持することができる。第１領域４０１、第２領域４０２及び第３領域４０３の３つの領域で排泄物を効率よく吸収し、排泄物の漏れを抑制できる。第１領域４０１の肌対向面と第２領域４０２の非肌対向面とは、互いに対向する面の一部で接合されていればよく、当該面の幅方向の一部の領域で接合されていてもよいし、当該面の前後方向の一部の領域で接合されていてもよい。第１領域４０１の肌対向面と第２領域４０２の非肌対向面とが一部で接合されていれば、吸収体４０の折り構造を維持し易くなる。 In the folded state in which the absorber 40 is folded, at least a part of the overlapping portion 45 joins the skin facing surface of the first region 401 and the non-skin facing surface of the second region 402. Since the skin facing surface of the first region 401 and the non-skin facing surface of the second region 402 are joined, the folded structure of the absorbent body can be maintained. The excrement can be efficiently absorbed in the three regions of the first region 401, the second region 402, and the third region 403, and the leakage of the excrement can be suppressed. The skin facing surface of the first region 401 and the non-skin facing surface of the second region 402 only have to be joined at a part of the surfaces facing each other, and are joined at a part of the width direction of the surface. Alternatively, they may be joined at a partial region in the front-rear direction of the surface. If the skin facing surface of the first region 401 and the non-skin facing surface of the second region 402 are joined together in part, the folded structure of the absorber 40 can be easily maintained.

吸収体４０が折り畳まれた折り畳み状態において、二つ折り線ＦＬ３が設けられた領域では、第１領域４０１の肌対向面と第２領域４０２の非肌対向面とは、接合されていない。二つ折り線ＦＬ３が設けられた領域には、第１領域４０１と第２領域４０２の接合によって硬化した部分が形成されないため、二つ折り線が設けられた領域における剛性が高くなることを抑制できる。よって、使い捨ておむつ１０を着用者の股下に沿って配置でき、排泄物の漏れを抑制できる。 In the folded state in which the absorber 40 is folded, the skin facing surface of the first region 401 and the non-skin facing surface of the second region 402 are not joined in the region where the fold line FL3 is provided. In the region where the fold line FL3 is provided, a portion hardened by joining the first region 401 and the second region 402 is not formed, so that it is possible to suppress an increase in rigidity in the region where the fold line is provided. Therefore, the disposable diaper 10 can be arrange | positioned along a wearer's inseam, and the leakage of excrement can be suppressed.

第１領域４０１、第２領域４０２、第３領域４０３は、連続する１枚のコアラップ４０ｂによって覆われている。コアラップ４０ｂは、第１領域４０１、第２領域４０２及び第３領域４０３を跨っている。コアラップが第１領域４０１、第２領域４０２及び第３領域４０３を跨っているため、第１領域４０１、第２領域４０２及び第３領域４０３のそれぞれにかかる力が互いに伝わり易くなる。そのため、幅方向外側から幅方向内側に向かう力が第３領域４０３に掛かった際に、当該力の反力が第２領域４０２側から第３領域４０３に伝わり易く、吸収体４０の剛性を低下させる効果を発揮し易くなる。 The first region 401, the second region 402, and the third region 403 are covered with a single continuous core wrap 40b. The core wrap 40b straddles the first region 401, the second region 402, and the third region 403. Since the core wrap straddles the first region 401, the second region 402, and the third region 403, the forces applied to the first region 401, the second region 402, and the third region 403 are easily transmitted to each other. Therefore, when a force from the outside in the width direction to the inside in the width direction is applied to the third region 403, the reaction force of the force is easily transmitted from the second region 402 side to the third region 403, and the rigidity of the absorber 40 is reduced. It becomes easy to exhibit the effect to make.

また、トップシート５０は、一対の第２折り線ＦＬ２間に位置する第１領域４０１の肌対向面側と、第３領域４０３の肌対向面側と、に跨って配置されている。トップシート５０が第１領域４０１と第３領域４０３に跨って配置されているため、重畳部４５に幅方向内側に向かう力がかかった際に重畳部４５が幅方向内側に移動し難くなり、吸収体４０の変形を効果的に抑制できる。すなわち、第１領域４０１の肌対向面側から幅方向に延びるトップシートは、第１領域４０１と第２領域４０２の間に延出せずに、第３領域４０３の肌対向面側に延びる。重畳部４５において、トップシート５０は、第１領域４０１と第２領域４０２の間、及び第２領域４０２と第３領域４０３の間に配置されていない。吸収体の折り構造を維持することができる。第１領域４０１、第２領域４０２及び第３領域４０３の３つの領域で排泄物を効率よく吸収し、排泄物の漏れを抑制できる。 Further, the top sheet 50 is disposed across the skin facing surface side of the first region 401 and the skin facing surface side of the third region 403 located between the pair of second fold lines FL2. Since the top sheet 50 is arranged across the first region 401 and the third region 403, the overlapping portion 45 becomes difficult to move inward in the width direction when a force toward the inner side in the width direction is applied to the overlapping portion 45, The deformation of the absorber 40 can be effectively suppressed. That is, the top sheet extending in the width direction from the skin facing surface side of the first region 401 does not extend between the first region 401 and the second region 402 but extends to the skin facing surface side of the third region 403. In the overlapping portion 45, the top sheet 50 is not disposed between the first region 401 and the second region 402 and between the second region 402 and the third region 403. The folded structure of the absorber can be maintained. The excrement can be efficiently absorbed in the three regions of the first region 401, the second region 402, and the third region 403, and the leakage of the excrement can be suppressed.

低目付領域４０４は、平面視にて曲線形状である。低目付領域４０４の前後方向の中心は、幅方向の内側に向かう曲線状の凸形状である。低目付領域４０４の前後方向の中心から低目付領域４０４の後端縁に延びる後側ライン４０４Ｒは、後方に向かうにつれて幅方向の外側に曲線状に延び、幅方向の外側へ湾曲した曲線状である。低目付領域４０４の前後方向の中心から低目付領域４０４の前端縁に延びる前側ライン４０４Ｆは、前方に向かうにつれて幅方向の外側に曲線状に延び、幅方向の外側へ湾曲した曲線状である。前側ライン４０４Ｆ及び後側ライン４０４Ｒが曲線状であるため、前側ライン４０４Ｆ及び後側ライン４０４Ｒが直線状である構成と比較して、低目付領域４０４の後端縁及び低目付領域４０４の前端縁に力が集中し難い。よって、低目付領域４０４の後端縁から幅方向に延びる折り線及び前端縁から幅方向に延びる折り線が形成され難く、幅方向に延びる折り癖によって使い捨ておむつが体から離れることを抑制できる。よって、着用者の身体の前後方向に沿った丸みに使い捨ておむつをより沿わせることができ、漏れを抑制することができる。 The low weight area 404 has a curved shape in plan view. The center in the front-rear direction of the low weight area 404 is a curved convex shape that goes inward in the width direction. A rear line 404R extending from the center in the front-rear direction of the low weight area 404 to the rear end edge of the low weight area 404 extends in a curved shape outward in the width direction toward the rear, and has a curved shape curved outward in the width direction. is there. A front line 404F extending from the center in the front-rear direction of the low weight area 404 to the front edge of the low weight area 404 has a curved shape that extends in a curved shape outward in the width direction and curves outward in the width direction. Since the front line 404F and the rear line 404R are curved, the rear edge of the low weight area 404 and the front edge of the low weight area 404 are compared with the configuration in which the front line 404F and the rear line 404R are straight. It is difficult to concentrate on. Therefore, it is difficult to form a fold line extending in the width direction from the rear edge of the low weight area 404 and a fold line extending in the width direction from the front edge, and it is possible to suppress the disposable diaper from being separated from the body by the folds extending in the width direction. Therefore, a disposable diaper can be made to follow along the roundness along the front-back direction of a wearer's body, and a leak can be suppressed.

また、低目付領域４０４の前後方向の中心の曲線の曲率は、低目付領域４０４の前側ラインの曲率よりも低く、低目付領域４０４の後側ラインの曲率よりも低い。そのため、低目付領域４０４の前後方向の中心から前後方向に延びるカーブの傾斜を大きくでき、低目付領域４０４の前後方向の中心において低目付領域の幅方向の長さを確保しつつ、当該低目付領域が前後方向に延びる範囲を狭くすることができる。よって、低目付領域４０４の前後方向の外側に位置する高目付領域４０５を広く設けることができ、吸収容量を確保し、排泄物の漏れを抑制できる。 In addition, the curvature of the center curve in the front-rear direction of the low weight area 404 is lower than the curvature of the front line of the low weight area 404 and lower than the curvature of the rear line of the low weight area 404. Therefore, the inclination of the curve extending in the front-rear direction from the center in the front-rear direction of the low-weight area 404 can be increased, and the width in the width direction of the low-weight area is secured at the center in the front-rear direction of the low-weight area 404. A range in which the region extends in the front-rear direction can be narrowed. Therefore, the high weight area 405 located outside the low weight area 404 in the front-rear direction can be widely provided, the absorption capacity can be secured, and the excrement leakage can be suppressed.

上述したように、本発明の実施形態を通じて本発明の内容を開示したが、この開示の一部をなす論述及び図面は、本発明を限定するものであると理解すべきではない。この開示から当業者には様々な代替実施の形態、実施例及び運用技術が明らかとなる。したがって、本発明の技術的範囲は、上述の説明から妥当な特許請求の範囲に係る発明特定事項によってのみ定められるものである。 Although the contents of the present invention have been disclosed through the embodiments of the present invention as described above, it should not be understood that the descriptions and drawings constituting a part of this disclosure limit the present invention. From this disclosure, various alternative embodiments, examples, and operational techniques will be apparent to those skilled in the art. Therefore, the technical scope of the present invention is defined only by the invention specifying matters according to the scope of claims reasonable from the above description.

１０：吸収性物品
２０：前胴回り域
２５：股下域
３０：後胴回り域
４０：吸収体
４０ａ：吸収コア
４０ｂ：コアラップ
４０１：第１領域
４０２：第２領域
４０３：第３領域
４０４：低目付領域
４０５；高目付領域
５０：トップシート
６０：外装シート
６０ａ：バックシート
Ｌ：前後方向
Ｔ：厚み方向
Ｗ：幅方向
ＦＬ１：第１折り線
ＦＬ２：第２折り線
ＦＬ３：二つ折り線 10: Absorbent article 20: Front waistline area 25: Inseam area 30: Rear waistline area 40: Absorbent body 40a: Absorbing core 40b: Core wrap 401: First area 402: Second area 403: Third area 404: Low weight area 405; High weight area 50: Top sheet 60: Exterior sheet 60a: Back sheet L: Front and rear direction T: Thickness direction W: Width direction FL1: First fold line FL2: Second fold line FL3: Bifold line

Claims

Forward and backward,
A width direction orthogonal to the front-rear direction;
A front waistline region, a rear waistline region, and a crotch region that is located between the front waistline region and the rear waistline region and is provided with a leg opening .
An absorbent body extending in the front-rear direction and having a pair of first fold lines and a pair of second fold lines for folding the absorbent body;
A bi-fold line for extending in the width direction in the crotch region and folding the absorbent article in two, and an absorbent article comprising:
In the folded state in which the absorber is folded,
A first region located between the pair of first fold lines and including a center in the width direction of the absorber;
A pair of second regions located between the first fold line and the second fold line and disposed on the skin facing surface side of the first region,
A pair of third regions respectively disposed on the skin facing surface side of the second region outside the second fold line in the width direction;
The third region is in the previous SL crotch region from the outer edge of the third region has a low basis weight region that extends inwardly in the width direction,
The outer edge of the third region is located outside the first fold line in the width direction,
The basis weight of the absorbent material in the low weight area is lower than the basis weight of the absorbent material at the rear edge of the third area and lower than the weight of the absorbent material at the front edge of the third area,
The fold line is provided in the low weight area ,
The low-weight area is an absorbent article that is provided in the crotch region and is not provided in the front waistline region and the rear waistline region .

The front edge of the low weight area is located behind the front waistline area,
2. The absorbent article according to claim 1, wherein a rear end edge of the low weight area is located in front of the rear waistline region.

The third area has a high weight area having a higher weight than the absorbent material of the low weight area,
The basis weight of the absorbent material in the second region is lower than the basis weight of the absorbent material in the first region and lower than the basis weight of the absorbent material in the high basis weight region of the third region. The absorbent article as described.

The absorbent article according to any one of claims 1 to 3 , wherein an inner edge of the low-weight area is located outside of the second fold line in the width direction in the folded state.

The absorbent article according to any one of claims 1 to 4 , wherein an inner edge of the low weight area is located outside of the first fold line in the width direction in the folded state.

The low weight area has a wide portion where the length in the width direction is maximum,
The absorbent article according to any one of claims 1 to 5 , wherein the fold line is provided in the wide part.

Having a core wrap covering the absorbent material;
The absorbent core according to any one of claims 1 to 6 , wherein the core wrap straddles the first region, the second region, and the third region.

The absorbent article according to any one of claims 1 to 7 , wherein in the folded state, the skin facing surface of the second region and the non-skin facing surface of the third region are not joined.

In the folded state, the skin facing surface of the first region and the non-skin facing surface of the second region are at least part of the overlapping portion where the first region, the second region, and the third region overlap. The absorbent article according to any one of claims 1 to 8 , which is bonded.

The absorptivity according to claim 9 , wherein in the folded state, the skin facing surface of the first region and the non-skin facing surface of the second region are not joined in the region where the folding line is provided. Goods.