JP5000551B2

JP5000551B2 - Absorbent article and absorbent main body holding cover

Info

Publication number: JP5000551B2
Application number: JP2008054058A
Authority: JP
Inventors: 貴夫小山
Original assignee: Kao Corp
Current assignee: Kao Corp
Priority date: 2008-03-04
Filing date: 2008-03-04
Publication date: 2012-08-15
Anticipated expiration: 2028-03-04
Also published as: JP2009207698A

Description

本発明は吸収性物品及び吸収性本体保持カバーに関し、特に使い捨てオムツとして好適な吸収性物品、並びに吸収パッドと共に着用される吸収性本体保持カバーに関する。 The present invention relates to an absorbent article and an absorbent main body holding cover, and more particularly to an absorbent article suitable as a disposable diaper, and an absorbent main body holding cover worn with an absorbent pad.

使い捨てオムツなどの吸収性物品や吸収パッドを肌面側に配置して用いるおむつカバーにおいては伸縮性を付与するためギャザーを形成することが広く行われている。このギャザーは伸縮部において屈折したシート材がなす不規則に形成された多数の襞からなり、通常シート材に糸ゴムの全体を伸長状態で接着し、その弾性部材が自然形状になるよう収縮することにより形成される。上記のギャザーは、そのシワ目の伸縮方向に直交する方向の長さが短く不規則であり、あまり美麗なものではない。また弾性部材が全体的に固着されているためその伸縮性が十分に発揮されないことがある。 In a diaper cover that uses an absorbent article such as a disposable diaper or an absorbent pad disposed on the skin surface side, gathering is widely performed to impart stretchability. This gather is composed of a large number of irregularly formed ridges formed by the sheet material refracted at the expansion and contraction part. Usually, the entire rubber thread is bonded to the sheet material in an expanded state, and the elastic member contracts to a natural shape. Is formed. The above-mentioned gathers are short and irregular in the direction perpendicular to the direction of expansion and contraction of the wrinkles, and are not very beautiful. Further, since the elastic member is fixed as a whole, the stretchability may not be sufficiently exhibited.

これに対し、最近、２枚のシートの間に該両シートとは独立して弾性体が伸縮しうるように構成された伸縮性複合シート部材が開発された（特許文献１等参照）。これにより感触が柔らかく、見た目にも美しいギャザーが形成される。 In contrast, recently, an elastic composite sheet member has been developed that is configured such that an elastic body can expand and contract independently between the two sheets (see Patent Document 1, etc.). This creates a gather that is soft to the touch and beautiful to the eye.

ところで、着用者の下腹部の周辺において胴部フィットギャザーが形成されるパンツ型使い捨てオムツにおいて、通常より小さめの吸収体の端部を不織布や開孔フィルムで覆うようにして積層したものが開示されている（特許文献２参照）。これにより、吸収体端部を露出させずに押さえられる。 By the way, in a pants-type disposable diaper in which a trunk fit gather is formed around the lower abdomen of the wearer, a laminate is disclosed in which the end of the absorbent body smaller than usual is covered with a nonwoven fabric or an apertured film. (See Patent Document 2). Thereby, it can hold down, without exposing an absorber edge part.

特開２００５−０８０８５９号公報Japanese Patent Laid-Open No. 2005-080859 特開平８−２８０７３９号公報JP-A-8-280739

上記特許文献１は、伸縮性複合シート部材を用いたテープ留め型のおむつを開示しているが、伸縮性複合シートがおむつ部材としてどのように配置、固定されているか具体的には開示していない。本発明者の検討によると、おむつを履く動作時、または着用中に引き上げる時には比較的強い力がおむつに働くことがわかった。このことは特に、介護者が身体を十分に動かせない要介護者に介護用パンツをはかせるとき、あるいは保護者が乳幼児にパンツ型おむつを急いではかせるときなどに顕著であった。 Although the said patent document 1 is disclosing the tape fastening type | mold diaper using the elastic composite sheet member, it is specifically disclosed how the elastic composite sheet is arrange | positioned and fixed as a diaper member. Absent. According to the study of the present inventor, it has been found that a relatively strong force acts on the diaper when the diaper is worn or when it is pulled up while wearing. This is particularly remarkable when the caregiver puts care pants on the care recipient who cannot move his body sufficiently, or when the guardian urges the infant to rush the pants-type diaper.

本発明は上記に鑑み、伸縮性が良好で肌へのフィット性に優れ、しかも部材間の剥離や破損等に対して高い強度を有する吸収性物品及び吸収性本体保持カバーを提供することを目的とする。 In view of the above, an object of the present invention is to provide an absorbent article and an absorbent main body holding cover that have excellent stretchability, excellent fit to the skin, and high strength against peeling or breakage between members. And

本発明は、非肌当接面側から肌当接面側に順に積層した第１、第２及び第３のシート材（外層シート、内層シート及び補強シートのいずれか）と、これらいずれか２つのシート材間に配置された複数本の弾性部材とを有する外装体の肌当接面側に吸収体を備えた吸収性物品であって、前記外装体の前記吸収体の端部より外側方に延在するフラップ部において、前記弾性部材は、２つのシート材間に所定間隔で並列して介在するように前記吸収性物品の幅方向に沿って配置されており；該２つのシート材が、前記弾性部材に直交する方向に延び、前記吸収性物品の幅方向に対して所定間隔で並列した第１接合部で接合されており；弾性部材をその間に含まない２つのシート材が、前記弾性部材に対応する部位を避けて前記弾性部材に平行な方向に延び、前記吸収性物品の長手方向に対して所定間隔で並列した第２接合部で接合されている吸収性物品を提供するものである。 The present invention includes first, second, and third sheet materials (any one of an outer layer sheet, an inner layer sheet, and a reinforcing sheet) laminated in order from the non-skin contact surface side to the skin contact surface side, and any two of these. An absorbent article comprising an absorbent body on the skin contact surface side of an exterior body having a plurality of elastic members disposed between two sheet members, the outer side of the exterior body from the end of the absorbent body The elastic member is disposed along the width direction of the absorbent article such that the elastic member is interposed between the two sheet materials in parallel at a predetermined interval; , Extending in a direction orthogonal to the elastic member, and joined at a first joint portion parallel to the width direction of the absorbent article at a predetermined interval; two sheet materials not including the elastic member therebetween, A direction parallel to the elastic member, avoiding the part corresponding to the elastic member Extends, it is to provide an absorbent article which is joined at the second joined section in parallel at predetermined intervals with respect to the longitudinal direction of the absorbent article.

なお、本明細書において、「肌当接面側」とは、各部材の両側（面）のうち、着用時に着用者の肌側に配される側（面）である。「非肌当接面側」とは、各部材の両側（面）のうち、着用時に着用者の肌側とは反対側に配される側（面）である。
また、「幅方向」とは、吸収性物品がパンツ型の場合、胴回り方向すなわちウエスト開口部の縁部がなす円周方向をいい、吸収性物品がテープ型オムツのような扁平状態である場合、各部材の短辺と平行な方向をいう（図２におけるＸ方向である）。「長手方向」とは、幅方向と直交する方向をいう（図２におけるＹ方向である）。 In addition, in this specification, the "skin contact surface side" is the side (surface) arranged on the wearer's skin side during wearing, out of both sides (surfaces) of each member. The “non-skin contact surface side” is a side (surface) that is disposed on the opposite side of the skin side of the wearer when worn, on both sides (surfaces) of each member.
In addition, the “width direction” refers to the waist direction, that is, the circumferential direction formed by the edge of the waist opening when the absorbent article is a pants type, and the absorbent article is in a flat state like a tape-type diaper. The direction parallel to the short side of each member is the X direction in FIG. The “longitudinal direction” refers to a direction orthogonal to the width direction (the Y direction in FIG. 2).

本発明の吸収性物品及び吸収性本体保持カバーは、感触が柔らかくかつ見た目も美しいシャーリング（ギャザー）を備え、伸縮性が良好で肌へのフィット性に優れ、しかも強度が高く、強く引っ張っても破損しにくい、という優れた効果を奏する。 The absorbent article and the absorbent main body holding cover of the present invention have a soft touch and a beautiful appearance of shirring (gather), good stretchability, excellent fit to the skin, high strength, even if pulled strongly There is an excellent effect that it is not easily damaged.

以下、本発明の吸収性物品を、その好ましい実施形態について図面を参照しながら詳しく説明する。図１は、本発明の吸収性物品の一実施形態（実施形態１）としてのパンツ型オムツを、着用者が履いたときの状態で一部切欠して模式的に示す斜視図である。本実施形態１のおむつは、非肌当接面側から肌当接面側に順に積層した第１、第２及び第３のシート材１，２，３と、これらのいずれか２つのシート材間に配置された複数本の弾性部材５とを有する外装体６を有し、該外装体６の肌当接面側におむつ身丈方向に沿って長手方向を有する吸収体８が配設されている。この外装体６の一部において吸収体８の長手方向における前後（以降、単に「吸収体前後」とも言う）の外側方に前後フラップ部６ｕが形成されている。吸収体８は、前後フラップ部６ｕと連続していても独立していてもよく、少なくとも前後フラップ部６ｕと領域的に区分しうるものである。 Hereinafter, the absorbent article of this invention is demonstrated in detail, referring drawings for the preferable embodiment. FIG. 1 is a perspective view schematically showing a pants-type diaper as an embodiment (embodiment 1) of the absorbent article of the present invention, partially cut away in a state when the wearer wears it. The diaper according to the first embodiment includes first, second, and third sheet materials 1, 2, and 3 that are sequentially laminated from the non-skin contact surface side to the skin contact surface side, and any two of these sheet materials. An exterior body 6 having a plurality of elastic members 5 disposed therebetween, and an absorbent body 8 having a longitudinal direction along the diaper height direction is disposed on the skin contact surface side of the exterior body 6. Yes. A front / rear flap portion 6u is formed on a part of the exterior body 6 on the outer side in the longitudinal direction of the absorbent body 8 (hereinafter also simply referred to as “front and rear of the absorbent body”). The absorbent body 8 may be continuous with or independent from the front and rear flap portions 6u, and can be at least divided into regions from the front and rear flap portions 6u.

図２は、図１に示したオムツを展開して腹側部１４ｆ及び股下部１５の一部の部分を拡大して肌当接面側からみた平面図である。図２には示されていないが、本実施形態においては、腹側部１４ｆの長手方向（Ｙ方向）反対側には腹側部１４と同様の形態の背側部１４ｒがあり、該腹側部１４ｆと背側部１４ｒとの間には股下部１５が配置されている。そして腹側部１４ｆと背側部１４ｒとは股下１５の最小幅部分における左右両端位置より幅方向外方に延在し、外装体６全体として砂時計形状とされている。これを、図１に示したおむつに組み立てたとき、腹側部１４ｆと背側部１４ｒとが一体となって胴部１４をなし、その身丈方向の下方に股下部（脚部）１５が配される（図１参照）。 FIG. 2 is a plan view of the diaper shown in FIG. 1 expanded to enlarge a part of the abdominal side portion 14f and the crotch portion 15 and seen from the skin contact surface side. Although not shown in FIG. 2, in this embodiment, there is a dorsal side portion 14r having the same form as the ventral side portion 14 on the opposite side to the longitudinal direction (Y direction) of the ventral side portion 14f. A crotch portion 15 is disposed between the portion 14f and the back side portion 14r. The abdominal side portion 14f and the back side portion 14r extend outward in the width direction from the left and right end positions in the minimum width portion of the crotch 15, and have an hourglass shape as a whole of the exterior body 6. When this is assembled into the diaper shown in FIG. 1, the abdominal side portion 14f and the back side portion 14r are united to form the torso portion 14, and the crotch portion (leg portion) 15 is arranged below the height direction. (See FIG. 1).

図１及び図２に示したパンツ型オムツ１０は、外装体６の肌当接面側に吸収体８を備えている。外装体６は、前身頃（腹側部）１４ｆの両側縁部と後身頃（背側部）１４ｒの両側縁部とが、ヒートシール、高周波シール、超音波シール等の公知の接合手段により互いに接合されており、これにより一対のサイドシール部１３が形成されている。また、その接合によって、オムツ１０に、ウエスト開口部ｔ及び一対のレッグ開口部ｓ，ｓが形成されている。また、吸収体８は縦長矩形形状をなし、その長手方向を、おむつの長手方向に一致させて、前身頃（腹側部）１４ｆから後身頃（背側部）１４ｒに亘るように、ホットメルト型接着剤等の公知の接合手段により外装体６の幅方向の中央部に接合されている。本実施形態のオムツ１０の上述の構成については、従来公知のおむつと同様である。 The pants-type diaper 10 shown in FIGS. 1 and 2 includes an absorbent body 8 on the skin contact surface side of the exterior body 6. The exterior body 6 has both side edges of the front body (abdominal side) 14f and both side edges of the back body (back side) 14r connected to each other by known joining means such as heat sealing, high frequency sealing, and ultrasonic sealing. The pair of side seal portions 13 are formed by joining. In addition, a waist opening t and a pair of leg openings s, s are formed in the diaper 10 by the joining. The absorbent body 8 has a vertically long rectangular shape, and the hot melt is formed so that the longitudinal direction thereof coincides with the longitudinal direction of the diaper and extends from the front body (abdominal side) 14f to the back body (back side) 14r. It is joined to the central portion in the width direction of the exterior body 6 by a known joining means such as a mold adhesive. About the above-mentioned structure of the diaper 10 of this embodiment, it is the same as that of a conventionally well-known diaper.

本発明の吸収性物品における外装体６は、非肌当接面側から肌当接面側に順に積層した第１、第２及び第３のシート材１，２，３と、該シート材間に配置された複数本の弾性部材５とを有する。図１及び図２に示した本実施形態１のオムツ１０では、第１のシート材１が外層シートＡであり、第２のシート材２が内層シートＢであり、第３のシート材３が補強シートＣである。外装体６において、外層シートＡと内層シートＢとの位置関係が非肌当接面側に外層シートＡ、肌当接面側に内層シートＢという構成であれば、補強シートＣの位置は特に限定されず、後述する別の好ましい実施形態（図６の実施形態５）で示されるように、第１のシート材１が補強シートＣ、第２のシート材２が外層シートＡ、第３のシート材３が内層シートＢという配置でもよく、また、図示しないが、第１のシート材１が外層シートＡ、第２のシート材２が補強シートＣ、第３のシート材３が内層シートＢという配置であってもよい。 The exterior body 6 in the absorbent article of the present invention includes first, second, and third sheet materials 1, 2, and 3 stacked in order from the non-skin contact surface side to the skin contact surface side, and between the sheet materials. And a plurality of elastic members 5 arranged on the surface. In the diaper 10 of the first embodiment shown in FIGS. 1 and 2, the first sheet material 1 is the outer layer sheet A, the second sheet material 2 is the inner layer sheet B, and the third sheet material 3 is Reinforcing sheet C. In the outer package 6, if the positional relationship between the outer layer sheet A and the inner layer sheet B is the outer layer sheet A on the non-skin contact surface side and the inner layer sheet B on the skin contact surface side, the position of the reinforcing sheet C is particularly Without being limited thereto, the first sheet material 1 is the reinforcing sheet C, the second sheet material 2 is the outer layer sheet A, and the third sheet material, as shown in another preferred embodiment (embodiment 5 in FIG. 6) described later. The sheet material 3 may be arranged as an inner layer sheet B. Although not shown, the first sheet material 1 is the outer layer sheet A, the second sheet material 2 is the reinforcing sheet C, and the third sheet material 3 is the inner layer sheet B. May be arranged.

外装体６を構成する各シート材の形状は特に限定されないが、好ましくは、外層シートＡ及び内層シートＢが略砂時計形状であり、補強シートＣが長方形である。補強シートＣは、外装体６の胴部１４に配置される。 Although the shape of each sheet material which comprises the exterior body 6 is not specifically limited, Preferably, the outer layer sheet A and the inner layer sheet B are substantially hourglass shapes, and the reinforcing sheet C is rectangular. The reinforcing sheet C is disposed on the body portion 14 of the exterior body 6.

補強シートＣは、胴回り全面に配置されてもよいが、必ずしも胴回り全面に配置される必要はない。例えば、本実施形態１のオムツ１０を展開した場合において、外装体６の胴部１４を幅方向および長手方向にそれぞれ四分割したとき、補強シートＣは、幅方向および長手方向におけるそれぞれ中央２つ分の領域の位置に配置されていることが好ましい。具体的には、図２に示すように、展開したオムツ素材において胴部１４を胴回り方向（Ｘ方向）に４等分した１／４線から３／４線までの領域と、胴部１４を身丈方向（Ｙ方向）に４等分した１／４線から３／４線までの領域とで区分される矩形領域（換言すると図２の補助線Ｗ_１／４〜Ｗ_３／４とＨ_１／４〜Ｈ_３／４とで囲まれる胴部１４内の略中央の矩形領域。本発明において「腹側胴部中央部」又は「背側胴部中央部」という。）に、補強シートＣが配されていることが好ましい。特に、補強シートＣの一端部が吸収体上に位置し、吸収体上に接合されていることが引上げ時の部材間の剥離や破損等に対して高い強度を発揮することから好ましい。ただし、補強シートＣのもつ機能を考慮して幾分矩形でなくても、あるいは上記補助線からずれていてもよい。なお、図２においては前身頃（腹側部）１４ｆを示しているが、寸法の比率（領域の配分）は後身頃（背側部）１４ｒにおいても同様である。 The reinforcing sheet C may be disposed on the entire waistline, but is not necessarily disposed on the entire waistline. For example, in the case where the diaper 10 of the first embodiment is deployed, when the trunk portion 14 of the exterior body 6 is divided into four in the width direction and the longitudinal direction, the reinforcing sheet C has two centers in the width direction and the longitudinal direction, respectively. It is preferable to be arranged at the position of the minute region. Specifically, as shown in FIG. 2, in the developed diaper material, the region from the 1/4 line to the 3/4 line obtained by dividing the body part 14 into four parts in the waist direction (X direction), and the body part 14 are A rectangular region (in other words, auxiliary lines W _{1/4 to} W _3/4 and H _{1 in} FIG. 2) divided by a region from a 1/4 line to a 3/4 line divided into four in the height direction (Y direction). _{/ 4 to} H _3/4 , the rectangular region at the substantially center in the trunk portion 14. In the present invention, the reinforcing sheet C is referred to as "the ventral trunk central portion" or "the dorsal trunk central portion"). Is preferably arranged. In particular, it is preferable that one end portion of the reinforcing sheet C is located on the absorbent body and is joined to the absorbent body because it exhibits high strength against peeling or breakage between members during pulling. However, in consideration of the function of the reinforcing sheet C, it may be somewhat rectangular or may be deviated from the auxiliary line. In FIG. 2, the front body (abdominal side) 14f is shown, but the ratio of dimensions (area distribution) is the same for the back body (back side) 14r.

また、本実施形態１のように内層シートＢの肌当接面側に補強シートＣが配置される場合は、補強シートＣは、図２に示すように吸収体８の端部を覆うように配置されていることが好ましい。このようにすることで、吸収体８が液等を吸収保持したときに、この液の前後方向（Ｙ方向）への漏れを効果的に抑止できる。なお、本明細書において「吸収体」とは、親水性繊維の集合体や高吸水ポリマー等の吸水性材料を含む吸収性コアそのもの、またはこれをパルプ等親水性繊維で覆った構造体を指し、液透過性の表面シートや液不透過性の防漏シートは含まない。 Moreover, when the reinforcement sheet C is arrange | positioned at the skin contact surface side of the inner layer sheet B like this Embodiment 1, as shown in FIG. 2, the reinforcement sheet C covers so that the edge part of the absorber 8 may be covered. It is preferable that they are arranged. By doing in this way, when the absorber 8 absorbs and holds liquid or the like, leakage of the liquid in the front-rear direction (Y direction) can be effectively suppressed. In the present specification, the term “absorber” refers to an absorbent core itself containing a collection of hydrophilic fibers, a water-absorbing material such as a superabsorbent polymer, or a structure in which this is covered with hydrophilic fibers such as pulp. Liquid-permeable surface sheet and liquid-impermeable leak-proof sheet are not included.

また、補強シートＣは、外層シートＡ又は内層シートＢと別体のシート材に限られず、内層シートＢを構成する一枚のシート材を折り曲げて相対向する２面を形成し、一方の面を構成する部分を内層シートＢ、他方の面を構成する部分を補強シートＣとすることもできる。このとき、折り返して形成された両シート材Ｂ及びＣは、開口端１７を形成する観点から、第２接合部１２によって接合される。
さらに、外層シートＡ及び内層シートＢの間及び／又は両者の間に機能性の部材や構造部を適宜設けてもよい。 In addition, the reinforcing sheet C is not limited to a sheet material separate from the outer layer sheet A or the inner layer sheet B, and forms two opposite surfaces by bending one sheet material constituting the inner layer sheet B. The portion that constitutes the inner layer sheet B and the portion that constitutes the other surface may be the reinforcing sheet C. At this time, both the sheet materials B and C formed by folding are joined by the second joining portion 12 from the viewpoint of forming the opening end 17.
Furthermore, you may provide a functional member and a structure part suitably between the outer layer sheet A and the inner layer sheet B, and / or between both.

本実施形態１のオムツ１０において、外装体６の胴部１４の一部、すなわち吸収体８端の前後の外側方に、前後フラップ部６ｕが形成されている。前後フラップ部６ｕには、弾性部材５が、外層シートＡと内層シートＢとの間に所定間隔で並列して介在するようにオムツ１０の幅方向（胴回り方向）に沿って配置されている。胴部弾性部材５の形態は特に限定されず、図示したように長尺の弾性部材とするほか、短尺の弾性部材を間欠的に連設する等が挙げられる。 In the diaper 10 according to the first embodiment, front and rear flap portions 6u are formed on a part of the body portion 14 of the exterior body 6, that is, on the outer side before and after the end of the absorber 8. In the front and rear flaps 6u, the elastic member 5 is disposed along the width direction (the waistline direction) of the diaper 10 so as to be interposed between the outer layer sheet A and the inner layer sheet B in parallel at a predetermined interval. The form of the trunk | drum elastic member 5 is not specifically limited, In addition to making it a long elastic member as shown in figure, the short elastic member is intermittently connected continuously etc. are mentioned.

本実施形態１のオムツ１０では、前後フラップ部６ｕにおいて、外層シートＡと内層シートＢとが第１接合部１１で接合されており、内層シートＢと補強シートＣとが第２接合部１２で接合されている。そして、第１接合部１１と第２接合部１２とが、内層シートＢを介して重なっている。本発明において、所定の構造部ないし部材が別の構造部ないし部材と「シートを介して重なる」とは、外層シートＡや内層シートＢ等の所定のシートを間に挟んで両側に各構造部ないし部材があり、その構造部ないし部材どうしがシートの厚み方向にみたときに重なっている部分を有することをいう。各構造部ないし部材の一部は重なっていても、全部が重なっていてもよい。 In the diaper 10 according to the first embodiment, the outer layer sheet A and the inner layer sheet B are joined by the first joining portion 11 in the front and rear flap portion 6u, and the inner layer sheet B and the reinforcing sheet C are joined by the second joining portion 12. It is joined. And the 1st junction part 11 and the 2nd junction part 12 have overlapped via the inner layer sheet | seat B. FIG. In the present invention, a predetermined structural part or member is overlapped with another structural part or member via a sheet means that each structural part is located on both sides of a predetermined sheet such as the outer layer sheet A or the inner layer sheet B. It means that there is a member, and the structure portion or member has a portion overlapping when viewed in the thickness direction of the sheet. A part of each structure part or member may overlap, or all may overlap.

弾性部材５がその間に介在する外層シートＡと内層シートＢとを接合する第１接合部１１は、弾性部材５に直交する方向に伸び、オムツ１０の幅方向に対して所定間隔で並列している。一方、弾性部材５がその間に介在しない内層シートＢと補強シートＣとを接合する第２接合部１２は、弾性部材５に対応する部位を避けて弾性部材５に平行な方向に伸び、オムツ１０の長手方向に対して所定間隔で並列している。 The first joint portion 11 that joins the outer layer sheet A and the inner layer sheet B with the elastic member 5 interposed therebetween extends in a direction orthogonal to the elastic member 5 and is arranged in parallel at a predetermined interval with respect to the width direction of the diaper 10. Yes. On the other hand, the second joining portion 12 that joins the inner layer sheet B and the reinforcing sheet C, in which the elastic member 5 is not interposed therebetween, extends in a direction parallel to the elastic member 5 while avoiding a portion corresponding to the elastic member 5, and the diaper 10 Are arranged in parallel at a predetermined interval with respect to the longitudinal direction.

上記のように本実施形態１のおむつは、２層のシート材が間欠的に接合され、その接合部を避けて弾性部材５が介在配置され、該弾性部材５が前記シート材とは独立して伸縮可能である筒状空孔構造を有するギャザー構造（以下、この構造をエアリギャザー構造といい、該構造が配された部分をエアリギャザー構造部という。）を有する。上記のような２層のシート材及び弾性部材からなるエアリギャザー構造の複合シートについては特開２００５−８０８５９号公報に詳しく記載されており、またこれを用いてパンツ型おむつとしたものについては特願２００６−３３８２４２号明細書及び特願２００６−３５５５５号明細書に記載されている。 As described above, in the diaper of the first embodiment, two layers of sheet material are intermittently joined, and the elastic member 5 is interposed to avoid the joint, and the elastic member 5 is independent of the sheet material. And a gathered structure having a cylindrical hole structure that can be expanded and contracted (hereinafter, this structure is referred to as an air gather structure, and a portion where the structure is disposed is referred to as an air gather structure section). The composite sheet having an air gather structure composed of the two-layer sheet material and the elastic member as described above is described in detail in Japanese Patent Application Laid-Open No. 2005-80859, and a pants-type diaper using this is particularly characterized. This is described in Japanese Patent Application No. 2006-338242 and Japanese Patent Application No. 2006-35555.

本実施形態１のオムツ１０では、非肌当接面側の第１のシート材１と中間の第２のシート材２とが第１接合部１１によって接合され、中間の第２のシート材２と肌当接面側第３のシート材３とが第２接合部１２によって接合されているが、後述する別の好ましい実施形態で示されるように、第１接合部１１と第２接合部１２とが逆であってもよい。すなわち、非肌当接面側の第１のシート材１と中間の第２のシート材２とが第２接合部１２によって接合され、中間の第２のシート材２と肌当接面側第３のシート材３とが第１接合部１１によって接合されていてもよい。 In the diaper 10 of the first embodiment, the first sheet material 1 on the non-skin contact surface side and the intermediate second sheet material 2 are bonded together by the first bonding portion 11, and the intermediate second sheet material 2. And the third sheet material 3 on the skin contact surface side are joined by the second joint portion 12, but as shown in another preferred embodiment described later, the first joint portion 11 and the second joint portion 12. And may be reversed. That is, the first sheet material 1 on the non-skin contact surface side and the intermediate second sheet material 2 are bonded together by the second bonding portion 12, and the intermediate second sheet material 2 and the skin contact surface side first 3 sheet materials 3 may be joined by the first joining portion 11.

第１接合部１１および第２接合部１２はいかなる方法によって形成されていてもよいが、第１接合部は、風合いの観点から熱融着（ヒートエンボス加工）により形成されていることが好ましく、また、第２接合部１２は、強度の観点から接着剤（好ましくはホットメルト型接着剤）により形成されていることが好ましい。接着剤の塗工パターンは、直線形、波形、螺旋形等、一般に知られるパターンが使用できるが、強度の観点から直線形が好ましい。 Although the 1st junction part 11 and the 2nd junction part 12 may be formed by what kind of method, it is preferred that the 1st junction part is formed by heat fusion (heat embossing) from a viewpoint of texture, Moreover, it is preferable that the 2nd junction part 12 is formed of the adhesive agent (preferably hot-melt-type adhesive agent) from a viewpoint of intensity | strength. As the adhesive coating pattern, generally known patterns such as a linear shape, a corrugated shape, and a spiral shape can be used, but a linear shape is preferable from the viewpoint of strength.

また、外装体６の脚部１５にはレッグ開口部ｓがあり、この部分にレッグ弾性部材９が配され、着用者の大腿部を適度に締め付けフィットするようにされている。 Further, the leg portion 15 of the exterior body 6 has a leg opening s, and a leg elastic member 9 is arranged in this portion so as to fit the wearer's thigh appropriately.

図２は換言するとオムツ素材を示しており、このように略砂時計形状とした外装体６に上述した胴部弾性部材５及びレッグ弾性部材９が伸長状態で配されている。このとき本実施形態１においては、胴部弾性部材５は、サイドシール部１３又は固定部１８で固定されている。また、レッグ弾性部材９は、その全体が外層シートＡと内層シートＢとの間に挟まれて固着されている。
図２に示したオムツ素材をサイドシール部１３において接合し、図１に示したパンツ型オムツに組み立てる。このとき、上記伸長状態の胴部弾性部材５及びレッグ弾性部材９が自然形状へと収縮することにより全体として柔らかく丸みを帯びた、立体的なパンツ型オムツ１０となる。そして、図１に示したウエスト開口部ｔ及びレッグ開口部ｓを有する使い捨てオムツとして、着用時には着用者の胴及び大腿部を適度に締め付けるようにしてフィットする。 In other words, FIG. 2 shows a diaper material, and the body elastic member 5 and the leg elastic member 9 described above are arranged in an extended state on the exterior body 6 having a substantially hourglass shape in this way. At this time, in the first embodiment, the body elastic member 5 is fixed by the side seal portion 13 or the fixing portion 18. Further, the entire leg elastic member 9 is sandwiched and fixed between the outer layer sheet A and the inner layer sheet B.
The diaper material shown in FIG. 2 is joined at the side seal portion 13 to assemble the pant-type diaper shown in FIG. At this time, the stretched body elastic member 5 and leg elastic member 9 are contracted into a natural shape, thereby forming a three-dimensional pant diaper 10 that is soft and rounded as a whole. And as a disposable diaper which has the waist opening part t and the leg opening part s shown in FIG. 1, it fits so that a wearer's trunk | drum and thigh may be tightened moderately at the time of wear.

上述した構成により、本実施形態１のオムツ１０には、筒状空孔構造部４が胴部１４に多数連設され、さらにウエスト開口部ｔの周縁に略円形の開口端１７が設けられている（本発明において「略円形」とは、真円や楕円だけではなく、緩やかな曲線により閉じられた形であれば矩形や菱形基調のものも含む意味に用いる。）。筒状空孔構造部４は、弾性部材５が収縮することによって、弾性部材５を挟むように重ね合わされた２枚のシート材（本実施形態１では外層シートＡ及び内層シートＢ）に多数の襞が生じることにより形成される。このとき、第２接合部１２で第２のシート材に接合された第３のシート材（本実施形態１では補強シートＣ）は、第２のシート材とともに襞を形成する。すなわち、本実施形態１では外層シートＡと内層シートＢ及び補強シートＣとが一対の襞を形成する。 With the configuration described above, the diaper 10 according to the first embodiment is provided with a large number of cylindrical hole structure portions 4 connected to the body portion 14, and a substantially circular opening end 17 is provided at the periphery of the waist opening t. (In the present invention, “substantially circular” is used to mean not only perfect circles and ellipses but also rectangles and rhombuses as long as they are closed by gentle curves.) When the elastic member 5 contracts, the cylindrical hole structure portion 4 has a large number of two sheet materials (an outer layer sheet A and an inner layer sheet B in the first embodiment) that are stacked so as to sandwich the elastic member 5. Formed by wrinkles. At this time, the third sheet material (the reinforcing sheet C in the first embodiment) joined to the second sheet material at the second joint portion 12 forms a ridge together with the second sheet material. That is, in the first embodiment, the outer layer sheet A, the inner layer sheet B, and the reinforcing sheet C form a pair of ridges.

筒状空孔構造部４について詳述すると、外層シートＡ及び内層シートＢの第１接合部１１は身丈方向に延びるシール線（基部）をなし、隣接するシール線間で内層シートＢは肌当接面側に外層シートＡは非肌当接面側にそれぞれ突出するようにして一対の襞をなす。この反対方向に向かうように線状に突出して形成された一対の襞が身丈方向に延びる上記筒状空孔構造部４をなす。このとき各襞はそれぞれ肌との間及び衣服との間にも筒状の空孔を保持しうる。そして、その襞は弾性部材に拘束されずに遊動して変形し空気が出入りするので、開口端１７から又はこれと着用者ないし外包衣の隙間からあたかも呼吸するように通気しうる。上記開口端１７は、ウエスト開口部ｔ又はレッグ開口部ｓの少なくとも一部に配されていればよいが、ウエスト開口部ｔの一部もしくは全部に配することが好ましい。 The cylindrical hole structure portion 4 will be described in detail. The first joint portion 11 of the outer layer sheet A and the inner layer sheet B forms a seal line (base) extending in the height direction, and the inner layer sheet B is a skin contact between adjacent seal lines. The outer layer sheet A forms a pair of wrinkles so as to protrude to the non-skin contact surface side on the contact surface side. A pair of ridges formed so as to project linearly in the opposite direction form the cylindrical hole structure portion 4 extending in the height direction. At this time, each bag can hold a cylindrical hole between the skin and the clothes. Then, since the bag moves freely without being constrained by the elastic member and the air enters and exits, it can be ventilated as if breathing from the opening end 17 or from the gap between the opening end 17 and the wearer or outer garment. The opening end 17 may be disposed on at least a part of the waist opening t or the leg opening s, but is preferably disposed on a part or all of the waist opening t.

前記第１接合部１１では、弾性部材５をシート材１又は２に接合させてもさせなくてもよい。すなわち、第１接合部１１が弾性部材５を避けて配置されていてもよい。第１接合部１１によって弾性部材５がシート材１又は２に接合される場合、等間隔で弾性部材５がシート材１又は２に接合するため、弾性部材５が収縮することによって形成される筒状空孔構造部４の形状が均等になり、より見た目の美しいシャーリング（ギャザー）を形成することができる。一方、第１接合部１１によって弾性部材５がシート材１及び２に接合されない場合、シート材１及び２における弾性部材５が介在する部分に接合部がないため、隣接する筒状空孔構造部４の空孔同士が弾性部材５によって連結しており、通気性および柔軟性に優れる。 In the first joint portion 11, the elastic member 5 may or may not be joined to the sheet material 1 or 2. That is, the 1st junction part 11 may be arrange | positioned avoiding the elastic member 5. FIG. When the elastic member 5 is bonded to the sheet material 1 or 2 by the first bonding portion 11, the elastic member 5 is bonded to the sheet material 1 or 2 at equal intervals, and thus the cylinder formed by the elastic member 5 contracting. The shape of the hole-like structure 4 becomes uniform, and it is possible to form shearing (gather) with a more beautiful appearance. On the other hand, when the elastic member 5 is not bonded to the sheet materials 1 and 2 by the first bonding portion 11, there is no bonding portion at the portion where the elastic member 5 is interposed in the sheet materials 1 and 2. The four holes are connected by the elastic member 5 and are excellent in air permeability and flexibility.

第１接合部１１を、弾性部材５を避けるようにして配置する場合、第１接合部１１は、直交格子状に限らず千鳥格子状に配列することもできる。本発明において直交格子状の配列とは、第１接合部１１が互いに並行する接合部列２１を複数なし、各接合部列２１における第１接合部１１のピッチが互いに略一致していることをいう。接合部ピッチの略一致とは、換言すれば、各接合部列２１の第１接合部１１を接合部列２１に直交する方向に投影したときに、各第１接合部１１の投影像が略同じ位置で重なる関係にあることをいう。これに対し、千鳥格子状の配列とは、第１接合部１１が互いに並行する接合部列２１を複数なし、各列の接合部がピッチをずらされた配列をいう。ここで接合部のピッチがずらされた配列とは、換言すれば、各列の第１接合部１１を接合部２１に直交する方向に投影したときに、第１接合部１１の投影像が一致しない配置であり、その投影像が接合部列２１の１列おきに略一致する配置であることが好ましく、隣接する接合部列２１どうしにおいて略半ピッチずらすことがより好ましい。なお、上記の直交格子及び千鳥格子の配列においては、吸収性物品の機能を考慮して適宜に第１接合部１１を設けない部分があってもよい。 When arrange | positioning the 1st junction part 11 so that the elastic member 5 may be avoided, the 1st junction part 11 can also be arranged not only in an orthogonal | lattice grid | lattice form but in a staggered lattice form. In the present invention, an orthogonal lattice-like arrangement means that the first joint portions 11 include a plurality of joint rows 21 parallel to each other, and the pitch of the first joint portions 11 in each joint row 21 is substantially the same. Say. In other words, the substantially coincidence of the joint pitches means that when the first joints 11 of the joint rows 21 are projected in a direction orthogonal to the joint rows 21, the projected images of the first joints 11 are substantially the same. It means that there is an overlapping relationship at the same position. On the other hand, the staggered arrangement means an arrangement in which the first joint portions 11 have a plurality of joint portion rows 21 parallel to each other, and the joint portions of each row are shifted in pitch. Here, the arrangement in which the pitches of the joints are shifted is, in other words, the projection images of the first joints 11 coincide when the first joints 11 in each row are projected in a direction orthogonal to the joints 21. It is preferable that the projected images are substantially coincident with every other row of the joint rows 21, and it is more preferable that the adjacent joint rows 21 are shifted by approximately a half pitch. In the arrangement of the orthogonal lattice and the staggered lattice, there may be a portion where the first joint portion 11 is not appropriately provided in consideration of the function of the absorbent article.

第２接合部１２は、オムツの幅方向に、連続して形成されていても間欠的に形成されていてもよい。第２接合部１２を間欠的に配置する場合、直交格子状に限らず千鳥格子状に配列することもできる。 The 2nd junction part 12 may be formed continuously or intermittently in the width direction of a diaper. When the second joint portions 12 are intermittently arranged, the second joint portions 12 can be arranged not only in an orthogonal lattice shape but also in a staggered lattice shape.

第１接合部１１の配置と第２接合部１２の配置との好ましい組み合わせとしては、
（Ａ）第１接合部１１が吸収性物品の長手方向に連続的に配置され、第２接合部１２が吸収性物品の幅方向に連続的に配置される場合（図２に示した実施形態１）、
（Ｂ）第１接合部１１が弾性部材５を避けるように吸収性物品の長手方向に間欠的に配置され直交格子状であり、第２接合部１２が吸収性物品の幅方向に連続的に配置される場合（後述する図３に示した実施形態２）、
（Ｃ）第１接合部１１が弾性部材５を避けるように吸収性物品の長手方向に間欠的に配置され直交格子状であり、第２接合部１２が吸収性物品の幅方向に間欠的に配置され直交格子状であり、かつ、両接合部１１，１２が第２のシートを介して重なる位置にある場合（後述する図４に示した実施形態３）、
（Ｄ）第１接合部１１が弾性部材５を避けるように吸収性物品の長手方向に間欠的に配置され直交格子状であり、第２接合部１２が吸収性物品の幅方向に間欠的に配置され千鳥格子状であり、かつ、第２接合部１２が第２のシートを介して第１接合部１１に重なる位置にある場合、
（Ｅ）第１接合部１１が弾性部材５を避けるように吸収性物品の長手方向に間欠的に配置され千鳥格子状であり、第２接合部１２が吸収性物品の幅方向に間欠的に配置され千鳥格子状であり、かつ、両接合部１１，１２が第２のシートを介して重なる位置にある場合（後述する図５に示した実施形態４）、
等が挙げられる。 As a preferable combination of the arrangement of the first joint 11 and the arrangement of the second joint 12,
(A) When the 1st junction part 11 is continuously arrange | positioned in the longitudinal direction of an absorbent article, and the 2nd junction part 12 is continuously arrange | positioned in the width direction of an absorbent article (embodiment shown in FIG. 2) 1),
(B) The 1st junction part 11 is intermittently arrange | positioned in the longitudinal direction of an absorbent article so that the elastic member 5 may be avoided, and is orthogonal grid | lattice form, and the 2nd junction part 12 is continuously in the width direction of an absorbent article. When arranged (Embodiment 2 shown in FIG. 3 described later),
(C) The 1st junction part 11 is intermittently arrange | positioned in the longitudinal direction of an absorbent article so that the elastic member 5 may be avoided, and it is orthogonal grid | lattice form, and the 2nd junction part 12 is intermittent in the width direction of an absorbent article. When arranged and in the form of an orthogonal lattice, and the joints 11 and 12 are in a position overlapping with each other via the second sheet (Embodiment 3 shown in FIG. 4 described later),
(D) The 1st junction part 11 is intermittently arrange | positioned in the longitudinal direction of an absorbent article so that the elastic member 5 may be avoided, and is orthogonal grid | lattice form, and the 2nd junction part 12 is intermittent in the width direction of an absorbent article. When arranged and in a staggered pattern and the second joint 12 is in a position overlapping the first joint 11 via the second sheet,
(E) The 1st junction part 11 is intermittently arrange | positioned in the longitudinal direction of an absorbent article so that the elastic member 5 may be avoided, and is the staggered lattice shape, and the 2nd junction part 12 is intermittent in the width direction of an absorbent article. Are arranged in a staggered pattern, and both joints 11 and 12 are in positions overlapping each other via the second sheet (Embodiment 4 shown in FIG. 5 described later),
Etc.

上記（Ａ）の配置とした場合、伸縮性、通気性、柔軟性の低下を抑えながらお腹周りの強度を向上させることができる。その結果、良好な伸縮性による着用感の良さと、オムツの引き上げ時の強度が両立されている。上記（Ｂ）の配置とした場合、第１接合部１１及び第２接合部１２が弾性部材５に重ならないために伸縮性に優れ、３層構造でありながら弾性部材５の周辺では吸収性物品の幅方向に接合部が無く、通気性および柔軟性に優れる。上記（Ｃ）の配置とした場合、吸収性物品の幅方向及び長手方向に３層の未接合部が伸びることができ、伸縮性、通気性、柔軟性に優れ、かつシャーリングの審美性に優れる。上記の（Ｄ）又は（Ｅ）の配置とした場合、吸収性物品の長手方向及び幅方向において両接合部１１，１２の重なり部の均一性が高まるため柔軟性に優れる。 In the case of the arrangement (A), the strength around the stomach can be improved while suppressing a decrease in stretchability, breathability, and flexibility. As a result, the good feeling of wearing due to the good stretchability and the strength when the diaper is pulled up are compatible. In the case of the arrangement (B), the first joint portion 11 and the second joint portion 12 do not overlap the elastic member 5 and are excellent in stretchability. There are no joints in the width direction, and air permeability and flexibility are excellent. In the case of the arrangement (C), the unbonded portion of the three layers can extend in the width direction and the longitudinal direction of the absorbent article, and is excellent in stretchability, breathability, flexibility, and excellent shearing aesthetics. . When the arrangement of (D) or (E) is used, the uniformity of the overlapping portions of the joint portions 11 and 12 is increased in the longitudinal direction and the width direction of the absorbent article, and the flexibility is excellent.

本実施形態１のオムツ１０は、シート材１１，１２と弾性部材５とを一体化して接合した従来のオムツにおける通常のギャザーに比べて、剛性の過度の増加を防止できるとともに、外力に対して襞の柔軟な変形が促される。また、シート材の厚み方向にボリュームが出るとともに襞に触れたときの感触が柔らかく、肌触りが良好となる。 The diaper 10 according to the first embodiment can prevent an excessive increase in rigidity as compared with a normal gather in a conventional diaper in which the sheet materials 11 and 12 and the elastic member 5 are integrally joined, and against an external force. Flexible deformation of the cocoon is encouraged. Further, the volume is increased in the thickness direction of the sheet material, and the touch when touching the heel is soft and the touch is good.

図２に示すように、本実施形態１のオムツ１０においては、吸収体８の設けられる領域においては上記の胴部弾性部材５が延在していない。具体的には、前身頃（腹側部）１４ｆ及び後身頃（背側部）１４ｒにおいて吸収体８の前後の外側方ないしは左右の外側方におけるフラップ部においてのみ胴部弾性部材５が設けられている。そのために吸収体８の左右における外側方の胴部弾性部材５を固定部１８とサイドシール部１３とで固定している。このような弾性部材端部の固定部１８は例えば吸収体と交差しない短尺の弾性部材の端部近傍のみをホットメルト等の接着剤により接着するような方法で形成することができる。あるいは吸収体８の設けられている領域を含めて胴部弾性部材５を固定し、その後に弾性部材を切断する等の、吸収体８の領域で弾性部材が実質的に伸縮応力を示さない処置を施してもよい。これにより吸収体８にシワがよらず良好な吸収性能を発揮することができる。 As shown in FIG. 2, in the diaper 10 of the first embodiment, the body elastic member 5 does not extend in the region where the absorber 8 is provided. Specifically, the torso elastic member 5 is provided only at the front and rear outer sides of the absorbent body 8 or the left and right outer side flaps of the front body (abdominal side) 14f and the back body (back side) 14r. Yes. For this purpose, the outer side elastic member 5 on the left and right sides of the absorber 8 is fixed by the fixing part 18 and the side seal part 13. Such a fixing portion 18 at the end of the elastic member can be formed, for example, by a method in which only the vicinity of the end of a short elastic member that does not cross the absorber is bonded with an adhesive such as hot melt. Alternatively, a treatment in which the elastic member does not substantially exhibit stretching stress in the region of the absorber 8, such as fixing the body elastic member 5 including the region where the absorber 8 is provided and then cutting the elastic member. May be applied. Thereby, it is possible to exhibit good absorption performance without wrinkles in the absorbent body 8.

本実施形態のオムツは、上述のようにオムツの機能を総合的に高めるよう通気性の筒状空孔構造部４を配設している。具体的には、液体が集中して排泄される箇所においては吸収体の液吸収性を妨げない。そして、それ以外の肌触りや外観などがより重視される胴周り及び腰骨部に長く伸びる柔らかなフルート形状となる襞を設け、しかも弾性部材の適切な配設により物品全体の伸縮性を向上させて優れたフィット性を実現することができる。また、開口端１７を介して筒状空孔構造部４に空気が出入りし良好な通気性が得られる。その結果、高齢者や乳幼児の肌を局部的に締め付けすぎず、しかも気触れなどから保護することができる。 As described above, the diaper of the present embodiment is provided with the breathable cylindrical hole structure portion 4 so as to comprehensively improve the function of the diaper. Specifically, the liquid absorbability of the absorbent body is not hindered at a location where the liquid is concentrated and excreted. In addition, it is provided with a heel that becomes a soft flute shape that extends to the waist and hips where the touch and appearance are more important, and the elasticity of the entire article is improved by appropriate arrangement of elastic members. Excellent fit can be achieved. In addition, air enters and exits the cylindrical hole structure portion 4 through the open end 17, and good air permeability is obtained. As a result, the skin of the elderly and infants can be protected from being touched without being excessively tightened.

さらに、本実施形態１においては、胴部弾性部材５は、その両端部および第１接合部１１以外は外装体６に拘束されず伸縮自在であるため、その伸縮性が損なわれることなく維持されており、オムツの良好なフィット性およびずれ落ち防止性が実現される。また、上記空孔構造部４が着用者の動き等により閉じたり開いたりして、あるいは外装体６の襞を変形させる動きが生じ、外装体６が換気作用を発揮して肌当接面の蒸れを抑制したサラッとした風合いが実現される。また、本実施形態１のオムツ１０においては、補強シートＣを外装体６の肌当接面側に配置したため、補強シートＣがオムツの着用時の見た目に影響せず、特に身丈方向に長くのびる多数の襞がなす特有の優雅で美麗な外観が維持される点で好ましい。 Further, in the first embodiment, since the body elastic member 5 is stretchable without being restrained by the exterior body 6 except for both ends and the first joint portion 11, the stretchability thereof is maintained without being impaired. The diaper has good fit and slip-off prevention. Further, the hole structure portion 4 is closed or opened by a wearer's movement or the like, or a movement of deforming the heel of the exterior body 6 occurs, so that the exterior body 6 exhibits a ventilation action and the skin contact surface A smooth texture with reduced stuffiness is realized. Moreover, in the diaper 10 of this Embodiment 1, since the reinforcement sheet C has been arrange | positioned at the skin contact surface side of the exterior body 6, the reinforcement sheet C does not affect the appearance at the time of wearing of a diaper, and especially extends in the length direction. It is preferable in that a unique elegant and beautiful appearance formed by a large number of wrinkles is maintained.

外層シートＡ及び内層シートＢの素材となる不織布としては、それぞれ、例えばエアスルー不織布、ヒートロール不織布、スパンレース不織布、スパンボンド不織布、メルトブローン不織布等の各種製法による不織布、織布、編布、樹脂フィルム等が挙げられ、これらを積層一体化させてなるシート材等を用いることができる。感触の良い柔軟な襞を規則的に配列させ、装飾的な美観を合わせて付与する観点から、両シート材又は一方のシート材（特に複合伸縮部材を肌に当接させる用途に用いる場合の肌側の面を形成するシート材）の形成材料は、エアスルー不織布、ヒートロール不織布、スパンレース不織布、スパンボンド不織布、メルトブローン不織布等であることが好ましい。 Non-woven fabrics used as materials for the outer layer sheet A and the inner layer sheet B are nonwoven fabrics, woven fabrics, knitted fabrics, and resin films produced by various manufacturing methods such as air-through nonwoven fabric, heat roll nonwoven fabric, spunlace nonwoven fabric, spunbond nonwoven fabric, and meltblown nonwoven fabric, respectively. A sheet material obtained by stacking and integrating these can be used. From the viewpoint of regularly arranging flexible ridges with good feel and giving a decorative aesthetic appearance, both sheet materials or one sheet material (especially skin when used for the purpose of bringing a composite elastic member into contact with the skin) The forming material of the sheet material that forms the side surface) is preferably an air-through nonwoven fabric, a heat roll nonwoven fabric, a spunlace nonwoven fabric, a spunbond nonwoven fabric, a melt blown nonwoven fabric, or the like.

補強シートＣの素材となる不織布としては、強度、熱融着性、防漏性（疎水性）の観点から、例えば、ポリエチレン、ポリプロピレン等の樹脂からなる、あるいは表面が前記樹脂からなる芯鞘型のスパンボンド不織布が好ましい。熱融着性の観点から、補強シートＣ及び内層シートＢは同一組成の不織布（例えば、前記両シートがＰＥＴ／ＰＥ複合繊維からなるスパンボンド不織布）からなることが好ましく、補強シートＣ及び内層シートＢ、外層シートＡの全てが同一組成の不織布（例えば、前記３つのシートがＰＥＴ／ＰＥ複合繊維からなるスパンボンド不織布、或いは外層シートＡのみがエアスルー不織布）からなることがより好ましい。 The non-woven fabric used as the material of the reinforcing sheet C is, for example, a core-sheath type made of a resin such as polyethylene or polypropylene, or having a surface made of the resin, from the viewpoint of strength, heat-fusibility, and leak-proof (hydrophobic) properties. Spunbond nonwoven fabrics are preferred. From the viewpoint of heat-fusibility, the reinforcing sheet C and the inner layer sheet B are preferably made of a non-woven fabric having the same composition (for example, both the sheets are spunbond non-woven fabrics made of PET / PE composite fibers). More preferably, B and outer layer sheet A are all made of a nonwoven fabric having the same composition (for example, the three sheets are spunbond nonwoven fabrics made of PET / PE composite fibers, or only outer layer sheet A is an air-through nonwoven fabric).

弾性部材５の材料としては、オムツや生理用ナプキン等の吸収性物品に用いられる通常の弾性材料を用いることができ、例えば素材としては、スチレン−ブタジエン、ブタジエン、イソプレン、ネオプレン等の合成ゴム、天然ゴム、ＥＶＡ、伸縮性ポリオレフィン、ポリウレタン等を挙げることができ、形態としては、断面が矩形、正方形、円形、多角形状等の糸状ないし紐状（平ゴム等）のもの、或いはマルチフィラメントタイプの糸状のもの等を用いることができる。 As a material of the elastic member 5, a normal elastic material used for absorbent articles such as diapers and sanitary napkins can be used. For example, as a material, synthetic rubber such as styrene-butadiene, butadiene, isoprene, neoprene, Natural rubber, EVA, stretchable polyolefin, polyurethane, etc. can be mentioned, and the form is a thread-like or string-like shape (flat rubber etc.) with a cross section of a rectangle, square, circle, polygon, etc., or a multifilament type A thread-like thing etc. can be used.

吸収体８は通常この種のオムツに用いられる材料を用いることができ、特に限定されるものではない。 The absorber 8 can use the material normally used for this kind of diaper, and is not specifically limited.

本実施形態１において、隣接する第１接合部１１の間隔（接合部のない部分の距離）は１〜４０ｍｍであることが好ましく、２〜１５ｍｍであることがより好ましい。各第１接合部１１の身丈方向の長さは５０〜２５０ｍｍであることが好ましく、１００〜２００ｍｍであることがより好ましい。各第１接合部１１のオムツ胴回り方向の長さ（幅）は０．１〜５ｍｍであることが好ましく、０．２〜１．５ｍｍであることがより好ましい。
また、本実施形態１において、隣接する第２接合部１２の間隔（接合部のない部分の距離）は０．５〜３０ｍｍであることが好ましく、３〜２０ｍｍであることがより好ましい。各第２接合部１２の身丈方向の長さは０．１〜５ｍｍであることが好ましく、０．２〜１．５ｍｍであることがより好ましい。各第２接合部１２のオムツ胴回り方向の長さ（幅）は２００〜７００ｍｍであることが好ましく、３００〜６００ｍｍであることがより好ましい。 In this Embodiment 1, it is preferable that the space | interval (distance of the part without a junction part) of the adjacent 1st junction part 11 is 1-40 mm, and it is more preferable that it is 2-15 mm. The length in the height direction of each first joint portion 11 is preferably 50 to 250 mm, and more preferably 100 to 200 mm. It is preferable that the length (width) of each 1st junction part 11 in the diaper trunk circumference direction is 0.1-5 mm, and it is more preferable that it is 0.2-1.5 mm.
Moreover, in this Embodiment 1, it is preferable that the space | interval (distance of the part without a junction part) of the adjacent 2nd junction part 12 is 0.5-30 mm, and it is more preferable that it is 3-20 mm. The length in the height direction of each second joint 12 is preferably 0.1 to 5 mm, and more preferably 0.2 to 1.5 mm. The length (width) of each second joint 12 in the diaper waist direction is preferably 200 to 700 mm, and more preferably 300 to 600 mm.

次に、本発明の別の好ましい一実施形態について説明する。
図３は、本発明の別の好ましい一実施形態（実施形態２）としてのオムツ２０を展開状態で肌側からみて模式的に示す部分平面図である。すなわち図３は、図２に示した本実施形態１に対応していうと図２の右上部分について、別の実施形態として示した図である。また、図３における一部円で囲んだ部位は、第１接合部１１及び第２接合部１２の配置及び形状を拡大して模式的に示している。
本実施形態２のオムツ２０においては、展開状態のオムツ素材において、第１接合部１１が弾性部材５を避けるように吸収性物品の長手方向に間欠的に配置され直交格子状であり、第２接合部１２が吸収性物品の幅方向に連続的に配置されている。その他の構成については、前記実施形態１と同様である。このような形態とすることで、第１接合部１１及び第２接合部１２が弾性部材５に重ならないために伸縮性に優れ、３層構造でありながら弾性部材５の周辺では吸収性物品の幅方向に接合部が無く、通気性および柔軟性に優れる。 Next, another preferred embodiment of the present invention will be described.
FIG. 3 is a partial plan view schematically showing the diaper 20 as another preferred embodiment (Embodiment 2) of the present invention as viewed from the skin side in the unfolded state. That is, FIG. 3 is a diagram showing another embodiment of the upper right part of FIG. 2 corresponding to the first embodiment shown in FIG. Moreover, the site | part enclosed with the partial circle in FIG. 3 has expanded and shown typically the arrangement | positioning and shape of the 1st junction part 11 and the 2nd junction part 12. FIG.
In the diaper 20 of the second embodiment, in the diaper material in an unfolded state, the first joint portion 11 is intermittently arranged in the longitudinal direction of the absorbent article so as to avoid the elastic member 5, and has a rectangular lattice shape. The joining part 12 is continuously arrange | positioned in the width direction of an absorbent article. Other configurations are the same as those in the first embodiment. By adopting such a form, the first joint portion 11 and the second joint portion 12 do not overlap with the elastic member 5, so that the stretchability is excellent and the absorbent member is formed around the elastic member 5 while having a three-layer structure. There are no joints in the width direction, and air permeability and flexibility are excellent.

図４は、本発明の別の好ましい一実施形態（実施形態３）としてのオムツ３０を展開状態で肌側からみて模式的に示す部分平面図である。図４は、上記図３と同じオムツの部分を別の実施形態として示した図である。また、図４における一部円で囲んだ部位は、第１接合部１１及び第２接合部１２の配置及び形状を拡大して模式的に示している。
本実施形態３のオムツ３０においては、第１接合部１１が弾性部材５を避けるように吸収性物品の長手方向に間欠的に配置され直交格子状であり、第２接合部１２が吸収性物品の幅方向に間欠的に配置され直交格子状であり、かつ、両接合部１１，１２が第２のシートを介して重なる位置にある。その他の構成については、前記実施形態１と同様である。このような形態とすることで、吸収性物品の幅方向及び長手方向に３層の未接合部が伸びることができ、伸縮性、通気性、柔軟性に優れ、かつシャーリングの審美性に優れる。 FIG. 4 is a partial plan view schematically showing a diaper 30 as another preferred embodiment (Embodiment 3) of the present invention when viewed from the skin side in a developed state. FIG. 4 is a view showing the same diaper portion as in FIG. 3 as another embodiment. Moreover, the site | part enclosed with the partial circle in FIG. 4 has expanded and shown typically the arrangement | positioning and shape of the 1st junction part 11 and the 2nd junction part 12. FIG.
In the diaper 30 of the third embodiment, the first joint portion 11 is intermittently arranged in the longitudinal direction of the absorbent article so as to avoid the elastic member 5 and has an orthogonal lattice shape, and the second joint portion 12 is the absorbent article. Are arranged in an orthogonal lattice shape in the width direction, and the joints 11 and 12 are in positions where they overlap with each other via the second sheet. Other configurations are the same as those in the first embodiment. By setting it as such a form, the three-layer non-joining part can extend in the width direction and longitudinal direction of an absorbent article, it is excellent in a stretching property, breathability, and a softness | flexibility, and it is excellent in the aesthetics of shirring.

図５は、本発明の別の好ましい一実施形態（実施形態４）としてのオムツ４０を展開状態で肌側からみて模式的に示す部分平面図である。図５は、上記図３及び図４と同じオムツの部分を別の実施形態として示した図である。また、図５における一部円で囲んだ部位は、第１接合部１１及び第２接合部１２の配置及び形状を拡大して模式的に示している。
本実施形態４のオムツ４０においては、第１接合部１１が弾性部材５を避けるように吸収性物品の長手方向に間欠的に配置され千鳥格子状であり、第２接合部１２が吸収性物品の幅方向に間欠的に配置され千鳥格子状であり、かつ、両接合部１１，１２が第２のシートを介して重なる位置にある。その他の構成については、前記実施形態１と同様である。このような形態とすることで、吸収性物品の長手方向及び幅方向において両接合部１１，１２の重なり部の均一性が高まるため柔軟性に優れる。 FIG. 5 is a partial plan view schematically showing a diaper 40 as another preferred embodiment (Embodiment 4) of the present invention as viewed from the skin side in the unfolded state. FIG. 5 is a view showing the same diaper portion as in FIG. 3 and FIG. 4 as another embodiment. Moreover, the site | part enclosed with the partial circle in FIG. 5 has expanded and shown typically the arrangement | positioning and shape of the 1st junction part 11 and the 2nd junction part 12. FIG.
In the diaper 40 of the fourth embodiment, the first joint portion 11 is intermittently arranged in the longitudinal direction of the absorbent article so as to avoid the elastic member 5 and has a staggered pattern, and the second joint portion 12 is absorbent. It is intermittently arranged in the width direction of the article, has a staggered pattern, and both joints 11 and 12 are in positions overlapping with each other via the second sheet. Other configurations are the same as those in the first embodiment. By setting it as such a form, since the uniformity of the overlap part of both the junction parts 11 and 12 increases in the longitudinal direction and width direction of an absorbent article, it is excellent in a softness | flexibility.

図６は、本発明の別の好ましい一実施形態（実施形態５）としてのオムツ５０を展開状態で肌側からみて模式的に示す部分平面図である。図６は、上記図３〜５と同じオムツの部分を別の実施形態として示した図である。
本実施形態５のオムツ５０では、補強シートＣが第１シート１として、第２シート２としての外層シートＡの非肌当接面側に接合され配置されている。具体的には、外装体６は、非肌当接面側から肌当接面側に向かって補強シートＣ、外層シートＡ及び内層シートＢが順に積層されており、外層シートＡと内層シートＢとの間に複数本の弾性部材５が配置され、補強シートＣと外層シートＡとが第２接合部１２で接合されており、外層シートＡと内層シートＢとが第１接合部１１で接合されている。その他の構成については、前記実施形態１と同様である。このような形態とすることで、補強シートＣが着用者の肌に常時触れる状態とせずに強度を高めることができ、良好な着用感を一層効果的に実現することができる。本実施形態５においては、吸収体８の前後方向への液漏れを抑制ないし防止するために、液もれ防止シート（図示せず）を吸収体８の端部に適用することが好ましい。 FIG. 6 is a partial plan view schematically showing a diaper 50 as another preferred embodiment (Embodiment 5) of the present invention as viewed from the skin side in the unfolded state. FIG. 6 is a view showing the same diaper portion as in FIGS. 3 to 5 as another embodiment.
In the diaper 50 of the fifth embodiment, the reinforcing sheet C is disposed as the first sheet 1 and is bonded to the non-skin contact surface side of the outer layer sheet A as the second sheet 2. Specifically, the exterior body 6 has a reinforcing sheet C, an outer layer sheet A, and an inner layer sheet B laminated in order from the non-skin contact surface side to the skin contact surface side. A plurality of elastic members 5 are disposed between the reinforcing sheet C and the outer layer sheet A, and the outer layer sheet A and the inner layer sheet B are joined together at the first joining portion 11. Has been. Other configurations are the same as those in the first embodiment. By setting it as such a form, intensity | strength can be raised without setting the reinforcement sheet C to the state which always contacts a wearer's skin, and a favorable wear feeling can be implement | achieved more effectively. In the fifth embodiment, it is preferable to apply a liquid leakage prevention sheet (not shown) to the end portion of the absorber 8 in order to suppress or prevent liquid leakage in the front-rear direction of the absorber 8.

上記の本実施形態１〜５は乳幼児用のものであっても、成人用のものであってもよい。オムツの強度の観点からは、成人用オムツ（介護用パンツ型オムツ）に好ましく適用することができる。このほか、本発明の吸収性物品は、例えば、ショーツ型ナプキン、ショーツ型ナプキン、パンツ型使い捨ておむつとテープ型使い捨ておむつが一体化された成人用おむつであってもよい。 The above Embodiments 1 to 5 may be for infants or for adults. From the viewpoint of diaper strength, it can be preferably applied to adult diapers (care pants-type diapers). In addition, the absorbent article of the present invention may be, for example, a shorts-type napkin, a shorts-type napkin, an adult diaper in which a pants-type disposable diaper and a tape-type disposable diaper are integrated.

本発明の別の実施形態として、非肌当接面側から肌当接面側に順に積層した第１、第２及び第３のシート材と、これらのいずれか２つのシート材間に配置された複数本の弾性部材とを有する外装体の肌当接面側に吸収性本体を配置して用いる吸収性本体保持カバーであって、前記外装体は、身頃方向両端部側の、着用者胴周り部に配される腹側部、背側部と、その間に存在する股下部からなり、該腹側部において、前記弾性部材は、前記２つのシート材間に所定間隔で並列して介在するように前記吸収性本体の幅方向に沿って配置されており、前記２つのシート材が、前記弾性部材に直交する方向に延び、前記吸収性本体の幅方向に対して所定間隔で並列した第１接合部で接合されており、前記弾性部材をその間に挟まない２つのシート材が、前記弾性部材に対応する部位を避けて前記弾性部材に平行な方向に延び、前記吸収性本体の長手方向に対して所定間隔で並列した第２接合部で接合されていることを特徴とする吸収性本体保持カバーが挙げられる。この吸収性本体保持カバーは、上述のように腹側又は背側に（好ましくは、取り付けられる吸収性本体との関係で、吸収性本体の吸収体身丈方向端部より外側にフラップ部が存在する形態の場合、該フラップ部に）補強用のシートを有し、好ましくはその部分が補強エアリギャザー構造とされている点で、前記本実施形態１〜５のおむつと共有する。すなわち、本実施形態の吸収性本体保持カバーは例えば前記本実施形態１〜５のおむつから吸収体８を取り去った形態として説明することができる。 As another embodiment of the present invention, the first, second, and third sheet materials laminated in order from the non-skin contact surface side to the skin contact surface side, and between these two sheet materials are arranged. An absorptive main body holding cover that is used by disposing an absorptive main body on the skin contact surface side of an exterior body having a plurality of elastic members, wherein the exterior body is a wearer's torso on both ends in the body direction It consists of an abdominal part, a back part, and a crotch part existing between them, and in the abdominal part, the elastic member is interposed in parallel at a predetermined interval between the two sheet materials. Are arranged along the width direction of the absorbent main body, and the two sheet materials extend in a direction perpendicular to the elastic member, and are arranged in parallel at a predetermined interval with respect to the width direction of the absorbent main body. Two sheet materials that are joined at one joint and do not sandwich the elastic member therebetween. Absorption characterized in that it extends in a direction parallel to the elastic member while avoiding a portion corresponding to the elastic member, and is joined by a second joint portion parallel to the longitudinal direction of the absorbent main body at a predetermined interval. Sex body holding cover. As described above, the absorbent main body holding cover has a flap portion on the abdominal side or the back side (preferably in relation to the absorbent main body to be attached, on the outer side of the absorbent body height direction end portion of the absorbent main body. In the case of a form, it has the sheet | seat for reinforcement | strengthening in this flap part, Preferably it is shared with the diaper of the said Embodiments 1-5 by the point made into the reinforcement air gathers structure. That is, the absorbent main body holding cover of the present embodiment can be described as a form in which the absorbent body 8 is removed from the diaper of the first to fifth embodiments.

本実施形態の吸収性本体保持カバーは、吸収性本体を肌面側に配置して用いられる。ここで吸収性本体は、排泄される尿等を吸収するものであれば特に限定されないが、例えば尿とりパッド等の吸収パッドが挙げられる。吸収パッドは、例えば、液透過性の表面シート、液不透過性の防漏シート、及び両シート間に介在された液保持性の吸収体を具備し、平面視矩形状の縦長形状に形成されたものが挙げられる。そして、吸収パッドの長手方向の両側には、左右一対の立体ガードが形成されていることが好ましく、各立体ガードは、吸収パッドの長手方向の両側に、立体ガード弾性部材を有する立体ガード形成用のシート材を配設して形成されていることが好ましい。このような吸収パッドの長手方向を着用者の背側から腹側にわたすようにして、該パッドの液透過シート側を着用者の肌に当接するよう配置し、これを覆うようにして本実施形態の吸収性本体保持カバーを着用することが好ましい。このとき本実施形態の吸収性本体保持カバーはテープ止めタイプであっても、パンツタイプであってもよい。 The absorbent main body holding cover of the present embodiment is used with the absorbent main body arranged on the skin surface side. The absorbent main body is not particularly limited as long as it absorbs excreted urine and the like, and examples thereof include an absorbent pad such as a urine collecting pad. The absorbent pad includes, for example, a liquid-permeable surface sheet, a liquid-impermeable leak-proof sheet, and a liquid-holding absorber interposed between the two sheets, and is formed in a vertically long shape that is rectangular in plan view. Can be mentioned. Preferably, a pair of left and right solid guards are formed on both sides of the absorbent pad in the longitudinal direction, and each solid guard is for forming a solid guard having a solid guard elastic member on both sides of the absorbent pad in the longitudinal direction. It is preferable that the sheet material is disposed. This absorbent pad is placed so that the longitudinal direction of the absorbent pad extends from the wearer's back to the abdomen, the liquid-permeable sheet side of the pad is in contact with the wearer's skin, and this is covered. It is preferable to wear an absorbent main body holding cover of the form. At this time, the absorptive main body holding cover of the present embodiment may be a tape stop type or a pants type.

本発明の吸収性物品及び吸収性本体保持カバーは、乳幼児用のものであっても、成人用のものであってもよい。中でもおむつの強度の観点からは成人用おむつであることが好ましい。このほか、本発明の吸収性物品及び吸収性本体保持カバーは、例えば、ショーツ型ナプキン、パンツ型使い捨ておむつ、又はテープ型使い捨ておむつ、あるいは生理用ショーツ、失禁用パンツ、おむつカバー等であってもよい。 The absorbent article and absorbent main body holding cover of the present invention may be for infants or for adults. Among these, an adult diaper is preferable from the viewpoint of the strength of the diaper. In addition, the absorbent article and the absorbent main body holding cover of the present invention may be, for example, a shorts-type napkin, a pants-type disposable diaper, or a tape-type disposable diaper, or a sanitary short, an incontinence pant, a diaper cover, etc. Good.

本発明の吸収性物品の好ましい一実施形態（本実施形態１）としてのパンツ型使い捨てオムツを一部切欠して模式的に示す斜視図である。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view schematically showing a partially cut-out pants-type disposable diaper as a preferred embodiment (first embodiment) of an absorbent article according to the present invention. 図１に示したオムツを展開して前身頃の部分を拡大して肌当接面側からみた平面図である。It is the top view which expanded the diaper shown in FIG. 1, expanded the front body part, and was seen from the skin contact surface side. 本発明の別の好ましい一実施形態（実施形態２）としてのオムツを展開状態で肌当接面側からみた部分平面図である。It is the partial top view which looked at the diaper as another preferable embodiment (Embodiment 2) of this invention from the skin contact surface side in the expansion | deployment state. 本発明のさらに別の好ましい一実施形態（実施形態３）としてのオムツを展開状態で肌当接面側からみた部分平面図である。It is the partial top view which looked at the diaper as another preferable one Embodiment (Embodiment 3) of this invention from the skin contact surface side in the expansion | deployment state. 本発明のさらに別の好ましい一実施形態（実施形態４）としてのオムツを展開状態で肌当接面側からみた部分平面図である。It is the partial top view which looked at the diaper as another preferable one Embodiment (Embodiment 4) of this invention from the skin contact surface side in the expansion | deployment state. 本発明のさらに別の好ましい一実施形態（実施形態５）としてのオムツを展開状態で肌当接面側からみた部分平面図である。It is the partial top view which looked at the diaper as another preferable one Embodiment (Embodiment 5) of this invention from the skin contact surface side in the expansion | deployment state.

Explanation of symbols

１第１のシート材
２第２のシート材
３第３のシート材
４筒状空孔構造部
５胴部弾性部材
６外装体
６ｕ前後フラップ部
８吸収体
９レッグ弾性部材
１０、２０、３０、４０、５０パンツ型使い捨てオムツ
１１第１接合部
１２第２接合部
１３サイドシール部
１４胴部
１５脚部
１７開口端
１８弾性部材端部の固定部
２１接合部列
Ａ外層シート
Ｂ内層シート
Ｃ補強シート DESCRIPTION OF SYMBOLS 1 1st sheet | seat material 2 2nd sheet | seat material 3 3rd sheet | seat material 4 Cylindrical hole structure part 5 Body elastic member 6 Exterior body 6u Front and rear flap part 8 Absorber 9 Leg elastic members 10, 20, 30, 40, 50 Pants-type disposable diaper 11 First joint portion 12 Second joint portion 13 Side seal portion 14 Body portion 15 Leg portion 17 Open end 18 Fixing portion 21 of elastic member end portion Joint portion row A Outer layer sheet B Inner layer sheet C Reinforcement Sheet

Claims

It has the 1st, 2nd and 3rd sheet material laminated in order from the non-skin contact surface side to the skin contact surface side, and a plurality of elastic members arranged between any two of these sheet materials An absorbent article provided with an absorber on the skin contact surface side of the exterior body,
In the flap portion that extends outward from the end portion in the body direction of the absorber of the exterior body,
The elastic member is disposed along the width direction of the absorbent article so as to be interposed in parallel at a predetermined interval between the two sheet materials,
The two sheet materials extend in a direction orthogonal to the elastic member, and are joined at a first joint portion arranged in parallel at a predetermined interval with respect to the width direction of the absorbent article,
Two sheet materials that do not sandwich the elastic member therebetween extend in a direction parallel to the elastic member, avoiding a portion corresponding to the elastic member, and are arranged in parallel at a predetermined interval with respect to the longitudinal direction of the absorbent article. An absorbent article characterized by being joined at two joints.

The absorptive article according to claim 1 in which said 1st joined part is arranged avoiding said elastic member.

Said 1st junction part and 2nd junction part are each arrange | positioned intermittently in the longitudinal direction and the width direction of the said absorbent article, and both junction part exists in the position which overlaps via the 2nd sheet | seat. The absorbent article according to claim 1 or 2.

The absorptive article according to any one of claims 1 to 3 in which the position where said 1st joined part and said 2nd joined part overlap via a 2nd sheet is arranged in a zigzag form.

The absorptive article according to any one of claims 1 to 4 in which said 1st joined part is formed by heat fusion, and said 2nd joined part is formed with adhesives.

It has the 1st, 2nd and 3rd sheet material laminated in order from the non-skin contact surface side to the skin contact surface side, and a plurality of elastic members arranged between any two of these sheet materials An absorptive body holding cover that is used by disposing an absorptive body on the skin contact surface side of the exterior body,
The exterior body is composed of an abdominal side part and a back side part arranged on the wearer's torso part on both ends in the body direction, and a crotch part existing therebetween,
The elastic member is arranged along the width direction of the absorbent main body so as to be interposed in parallel at a predetermined interval between the two sheet materials,
The two sheet materials extend in a direction perpendicular to the elastic member, and are joined at a first joint portion arranged in parallel at a predetermined interval with respect to the width direction of the absorbent main body,
Two sheet members that do not sandwich the elastic member therebetween extend in a direction parallel to the elastic member while avoiding a portion corresponding to the elastic member, and are arranged in parallel at a predetermined interval with respect to the longitudinal direction of the absorbent main body. An absorptive main body holding cover which is joined by two joined parts.