JP6058886B2 - Absorbent articles - Google Patents

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JP6058886B2
JP6058886B2 JP2011287299A JP2011287299A JP6058886B2 JP 6058886 B2 JP6058886 B2 JP 6058886B2 JP 2011287299 A JP2011287299 A JP 2011287299A JP 2011287299 A JP2011287299 A JP 2011287299A JP 6058886 B2 JP6058886 B2 JP 6058886B2
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fused
fusion
back side
absorbent
portions
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武志 南
武志 南
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Daio Paper Corp
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Description

本発明は、吸収性物品に関する。   The present invention relates to an absorbent article.

従来、吸収性物品の一つとして使い捨ての紙おむつが知られている。使い捨ての紙おむつとしては、パンツ型及びテープ式紙おむつが知られている。
このうちパンツ型紙おむつは、一般に、吸収体を含む吸収性本体と、この吸収性本体の外面側に一体的に設けられた外装シートと、を備え、製品状態で外装シートにおける腹側部と背側部とが、その両側端の融着部において融着されることにより腰周り開口部及び左右一対の脚周り開口部が形成されている。
このようなパンツ型使い捨ておむつは、融着部が、着用時には不用意に引き裂かれることがなく、また、廃棄時には容易に引き裂き分離が行われることが望ましい。
このため、例えば、外装シートの両側端の融着部の一部に腹側把持部と背側把持部を重ね合わせた把持部を有し、把持部から指先を入れる空間を設けることで外装シートの両側端の融着部を引き裂きやすくする技術が提案されている（例えば、特許文献１、２）。 Conventionally, disposable paper diapers are known as one of absorbent articles. As disposable paper diapers, pants-type and tape-type paper diapers are known.
Of these, pants-type disposable diapers generally include an absorbent main body including an absorbent body and an exterior sheet integrally provided on the outer surface side of the absorbent main body. A waist part opening part and a pair of left and right leg opening parts are formed by fusing the side parts at the fusing parts on both side ends thereof.
In such a pants-type disposable diaper, it is desirable that the fused portion is not inadvertently torn at the time of wearing, and is easily torn and separated at the time of disposal.
For this reason, for example, the exterior sheet has a grip part in which a stomach side grip part and a dorsal side grip part are overlapped on a part of the fusion part at both ends of the exterior sheet, and a space for inserting a fingertip from the grip part is provided. There has been proposed a technique for easily tearing the fused portions at both ends of the paper (for example, Patent Documents 1 and 2).

特開２０１１−１２０８０９号公報JP 2011-120809 A 実開平６−５０６２３号公報Japanese Utility Model Publication No. 6-50623

しかしながら、特許文献１、２に記載の方法では、外装シートの両側端の融着部を引き裂くための力を低減させているに過ぎず、把持部から離れた腰周り開口部又は脚周り開口部付近の融着部まで適切に力が伝わらずに、融着部以外の部分が引き裂かれてしまう場合があった。   However, in the methods described in Patent Documents 1 and 2, only the force for tearing the fused portions at both ends of the exterior sheet is reduced, and the waist opening or leg opening is away from the gripping portion. In some cases, the force is not properly transmitted to the nearby fusion part, and the part other than the fusion part is torn.

本発明の課題は、廃棄時に融着部を引き裂く際に、融着部以外の部分が引き裂かれてしまうことを防止することができる吸収性物品を提供することである。   The subject of this invention is providing the absorbent article which can prevent that parts other than a melt | fusion part are torn when tearing a melt | fusion part at the time of disposal.

前記課題を解決するために、請求項１に記載の発明は、
吸収体を含む吸収性本体と、
前記吸収性本体の外面側に設けられ、着用時に人体の腹側に位置する腹側部及び背側に位置する背側部を有する外装体と、
を備え、
前記外装体の前記腹側部と前記背側部とが、その両側端部に融着部を有し、腰周り開口部及び左右一対の脚周り開口部が形成された吸収性物品であって、
前記両側端部は、
一の側端部に沿った長手方向の所定位置に前記腹側部と前記背側部との間に空間部を形成することが可能な非融着部と、
前記非融着部に対して前記腰周り開口部側の前記腹側部と前記背側部とが融着された上側融着部と、
前記非融着部に対して前記脚周り開口部側の前記腹側部と前記背側部とが融着された下側融着部と、
を有し、
前記非融着部は、指を挿入することができる程度の大きさを有し、
前記上側融着部及び前記下側融着部は、引き裂き時に引き裂き方向を長手方向に沿うように誘導する誘導部を備え、
前記誘導部には、前記上側融着部及び前記下側融着部の幅方向に延在し、前記腹側部及び前記背側部が圧着された第１凹部が長手方向に沿って所定の間隔で設けられ、
前記第１凹部は、前記外装体の端部から内側に向かって前記非融着部側に傾斜していることを特徴とする。 In order to solve the above problem, the invention according to claim 1 is:
An absorbent body including an absorbent body;
An exterior body which is provided on the outer surface side of the absorbent main body and has a ventral side part located on the abdominal side of the human body and a back side part located on the back side when worn;
With
The abdominal side portion and the back side portion of the exterior body are absorbent articles having fusion portions at both end portions thereof, and a waist opening portion and a pair of left and right leg opening portions are formed. ,
The side ends are
A non-fused portion capable of forming a space portion between the ventral side portion and the back side portion at a predetermined position in the longitudinal direction along one side end portion;
An upper fused portion in which the abdomen side portion and the dorsal side portion on the waist opening side are fused to the non-fused portion;
A lower fusion part in which the abdominal side part and the back side part on the leg opening part side are fused to the non-fusion part;
Have
The non-fused portion has a size that allows a finger to be inserted,
The upper fused portion and the lower fused portion include a guide portion that guides the tearing direction along the longitudinal direction when tearing,
The guide portion has a first recess extending in the width direction of the upper side fusion portion and the lower side fusion portion, and having the abdomen side portion and the back side portion crimped thereto along a longitudinal direction. Provided at intervals,
The first recess is inclined toward the non-fused portion from the end of the exterior body toward the inside.

請求項２に記載の発明は、
吸収体を含む吸収性本体と、
前記吸収性本体の外面側に設けられ、着用時に人体の腹側に位置する腹側部及び背側に位置する背側部を有する外装体と、
を備え、
前記外装体の前記腹側部と前記背側部とが、その両側端部に融着部を有し、腰周り開口部及び左右一対の脚周り開口部が形成された吸収性物品であって、
前記両側端部は、
一の側端部に沿った長手方向の所定位置に前記腹側部と前記背側部との間に空間部を形成することが可能な非融着部と、
前記非融着部に対して前記腰周り開口部側の前記腹側部と前記背側部とが融着された上側融着部と、
前記非融着部に対して前記脚周り開口部側の前記腹側部と前記背側部とが融着された下側融着部と、
を有し、
前記非融着部は、指を挿入することができる程度の大きさを有し、
前記上側融着部及び前記下側融着部は、引き裂き時に引き裂き方向を長手方向に沿うように誘導する誘導部を備え、
前記非融着部よりも前記外装体の内側に、前記上側融着部の内側且つ下側の隅部及び前記下側融着部の内側且つ上側の隅部の各々とそれぞれ接する部分を有し、前記腹側部と前記背側部とが接着された中間接着部が設けられていることを特徴とする。 The invention described in claim 2
An absorbent body including an absorbent body;
An exterior body which is provided on the outer surface side of the absorbent main body and has a ventral side part located on the abdominal side of the human body and a back side part located on the back side when worn;
With
The abdominal side portion and the back side portion of the exterior body are absorbent articles having fusion portions at both end portions thereof, and a waist opening portion and a pair of left and right leg opening portions are formed. ,
The side ends are
A non-fused portion capable of forming a space portion between the ventral side portion and the back side portion at a predetermined position in the longitudinal direction along one side end portion;
An upper fused portion in which the abdomen side portion and the dorsal side portion on the waist opening side are fused to the non-fused portion;
A lower fusion part in which the abdominal side part and the back side part on the leg opening part side are fused to the non-fusion part;
Have
The non-fused portion has a size that allows a finger to be inserted,
The upper fused portion and the lower fused portion include a guide portion that guides the tearing direction along the longitudinal direction when tearing,
Inside the exterior body of the non-fused portion, there are portions respectively in contact with the inner and lower corners of the upper fused portion and the inner and upper corner portions of the lower fused portion, respectively. In addition, an intermediate bonding portion in which the abdominal side portion and the back side portion are bonded is provided .

請求項３に記載の発明は、請求項２に記載の吸収性物品であって、
前記誘導部には、前記上側融着部及び前記下側融着部の幅方向に延在し、前記腹側部及び前記背側部が圧着された第１凹部が長手方向に沿って所定の間隔で設けられ、
前記第１凹部は、前記外装体の端部から内側に向かって前記非融着部側に傾斜していることを特徴とする。 The invention according to claim 3 is the absorbent article according to claim 2,
The guide portion has a first recess extending in the width direction of the upper side fusion portion and the lower side fusion portion, and having the abdomen side portion and the back side portion crimped thereto along a longitudinal direction. Provided at intervals,
The first recess is inclined toward the non-fused portion from the end of the exterior body toward the inside.

請求項４に記載の発明は、請求項２又は３に記載の吸収性物品であって、
前記中間接着部には、前記外装体の端部に向かって幅が狭くなるように形成され、前記腹側部及び前記背側部が圧着された第２凹部が、長手方向に沿って所定の間隔で設けられていることを特徴とする。 The invention according to claim 4 is the absorbent article according to claim 2 or 3,
The intermediate bonding portion is formed so that the width thereof becomes narrower toward the end portion of the exterior body, and a second concave portion to which the abdomen side portion and the back side portion are crimped has a predetermined length along the longitudinal direction. It is characterized by being provided at intervals.

請求項５に記載の発明は、請求項２又は３に記載の吸収性物品であって、
前記中間接着部は、
前記腹側部と前記背側部とが着脱可能に接着される接着部材を備えることを特徴とする。 The invention according to claim 5 is the absorbent article according to claim 2 or 3 ,
The intermediate adhesive portion is
It is characterized by comprising an adhesive member to which the abdominal side and the back side are detachably bonded.

請求項６に記載の発明は、請求項５に記載の吸収性物品であって、
前記中間接着部に設けられた接着部材がフックテープであることを特徴とする。 Invention of Claim 6 is the absorbent article of Claim 5 , Comprising:
The adhesive member provided in the intermediate adhesive portion is a hook tape.

請求項７に記載の発明は、請求項１〜６の何れか一項に記載の吸収性物品であって、
前記非融着部は、前記側端部の中央部又は前記側端部の中で強度が変化する強度変化部に対応する位置に設けられていることを特徴とする。 The invention described in claim 7 is the absorbent article according to any one of claim 1 to 6
The non-fused portion is provided at a position corresponding to a strength changing portion whose strength changes in a central portion of the side end portion or in the side end portion .

本発明によれば、廃棄時に融着部を引き裂く際に、融着部以外の部分が引き裂かれてしまうことを防止することができる。   ADVANTAGE OF THE INVENTION According to this invention, when tearing a fused part at the time of disposal, it can prevent that parts other than a fused part will be torn.

本発明の実施形態１の紙おむつの製品状態外観図である。BRIEF DESCRIPTION OF THE DRAWINGS It is a product state external view of the paper diaper of Embodiment 1 of this invention. 図１の紙おむつの分解斜視図である。It is a disassembled perspective view of the paper diaper of FIG. 図１の紙おむつの外装体の展開図である。It is an expanded view of the exterior body of the paper diaper of FIG. 図１の紙おむつの吸収性本体の平面図である。It is a top view of the absorptive main body of the paper diaper of FIG. 図３のＶ−Ｖ線における断面図である。It is sectional drawing in the VV line | wire of FIG. 図１の紙おむつの融着部を示す拡大模式図である。It is an expansion schematic diagram which shows the melt | fusion part of the paper diaper of FIG. 変形例１における紙おむつの融着部を示す拡大模式図である。It is an expansion schematic diagram which shows the melt | fusion part of the paper diaper in the modification 1. 本発明の実施形態２における紙おむつの外装体の展開図である。It is an expanded view of the exterior body of the paper diaper in Embodiment 2 of this invention. 図８の紙おむつの融着部を示す拡大模式図である。It is an expansion schematic diagram which shows the melt | fusion part of the paper diaper of FIG. 図８の紙おむつの融着部の斜視図である。It is a perspective view of the melt | fusion part of the paper diaper of FIG.

＜実施形態１＞
以下、本発明の実施形態を、図面を用いて詳細に説明する。ただし、発明の範囲は、図示例に限定されない。
また、本実施形態においては、吸収性物品としてパンツ型使い捨て紙おむつ（以下、「紙おむつ」という。）を例示して説明する。 <Embodiment 1>
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. However, the scope of the invention is not limited to the illustrated examples.
In the present embodiment, a pants-type disposable paper diaper (hereinafter referred to as “paper diaper”) will be described as an example of the absorbent article.

図１から図５に示すように、紙おむつ１は、吸収体１３を含む吸収性本体１０と、この吸収性本体１０の外面側に設けられ、着用時に人体の腹側に位置する腹側部Ｆ及び背側に位置する背側部Ｂを有する外装体２０と、を備えている。
この紙おむつ１は、外装体２０の腹側部Ｆと背側部Ｂとが、その両側端部２１、２２において融着されることにより腰周り開口部Ｗ、左右一対の脚周り開口部Ｌが形成されるとともに、左右一対の脚周り開口部Ｌの間に股下部Ｍが形成されるようになっている。 As shown in FIGS. 1 to 5, the disposable diaper 1 includes an absorbent main body 10 including an absorbent body 13 and an abdominal side portion F which is provided on the outer surface side of the absorbent main body 10 and is positioned on the stomach side of the human body when worn. And an exterior body 20 having a back side portion B located on the back side.
This disposable diaper 1 has a waist opening W and a pair of left and right leg openings L by fusing the belly side F and the back side B of the exterior body 20 at both side ends 21 and 22. The crotch part M is formed between the pair of left and right leg openings L.

紙おむつ１は、図２に示すように、外装体２０の紙おむつ着用時の身体側となる内面に、吸収性本体１０の外面側がホットメルト等の接着剤によって接着されて、吸収性本体１０と外装体２０が一体化される。そして、外装体２０の股下部Ｍを吸収性本体１０とともに折り曲げるようにして外装体２０の腹側部Ｆと背側部Ｂを折り重ね、左右同士でヒートシール又は超音波シールによって融着することにより、図１に示す、紙おむつ１に組み立てられる。両側端部２１、２２における詳細な融着方法については後述する。なお、図２に示す紙おむつ１の分解斜視図及び図３に示す紙おむつの外装体２０の展開図は、紙おむつ１として外装体２０の両側端部２１、２２を融着したものを分解した場合の図である。
なお、腰周り開口部Ｗの開口端部から脚周り開口部Ｌに至る方向を、一の側端部２１（２２）の長手方向とし、当該長手方向に直交する方向を一の側端部２１（２２）の幅方向とする。 As shown in FIG. 2, the disposable diaper 1 is formed by bonding the outer surface of the absorbent body 10 to the inner surface of the exterior body 20 on the body side when the disposable diaper is worn by an adhesive such as hot melt. The body 20 is integrated. Then, the abdominal side F and the back side B of the exterior body 20 are folded so that the crotch M of the exterior body 20 is bent together with the absorbent main body 10, and the left and right are fused by heat sealing or ultrasonic sealing. Thus, the paper diaper 1 shown in FIG. 1 is assembled. A detailed method of fusing at both end portions 21 and 22 will be described later. 2 is an exploded perspective view of the disposable diaper 1 shown in FIG. 2 and a developed view of the outer casing 20 of the disposable diaper shown in FIG. 3 is a case where the two side ends 21 and 22 of the outer casing 20 are fused as the disposable diaper 1. FIG.
Note that the direction from the opening end of the waist opening W to the leg opening L is the longitudinal direction of the one side end 21 (22), and the direction orthogonal to the longitudinal direction is the one side end 21. The width direction of (22).

（吸収性本体）
吸収性本体１０は、図４、図５に示すように、不織布などからなる透液性表面シート１１と、ポリエチレン等からなる防水シート１２との間に、綿やパルプ等の吸収性素材や、繊維或いはフィルム等のシート状基材と高吸水性樹脂とが組み合わされて形成された吸収体１３を介在させた構造を有しており、体液としての尿等の水様成分を吸収保持するものである。
この吸収性本体１０は、外装体２０の腹側部Ｆから背側部Ｂに亘り、当該吸収性本体１０よりも幅方向外側に延出するように形成される股下部Ｍに備えられており、当該吸収性本体１０の幅方向の両端部には、長手方向に延在する左右一対の立体ギャザーＢＳが備えられている。 (Absorbent body)
As shown in FIGS. 4 and 5, the absorbent main body 10 has an absorbent material such as cotton or pulp between a liquid-permeable surface sheet 11 made of a nonwoven fabric and a waterproof sheet 12 made of polyethylene, It has a structure in which an absorbent body 13 formed by combining a sheet-like base material such as fiber or film and a highly water-absorbent resin is interposed, and absorbs and holds water-like components such as urine as body fluid It is.
The absorbent main body 10 is provided in a crotch part M formed so as to extend from the abdominal side F to the back side B of the exterior body 20 outward in the width direction from the absorbent main body 10. A pair of left and right three-dimensional gathers BS extending in the longitudinal direction are provided at both ends in the width direction of the absorbent main body 10.

吸収体１３は、例えば、平面視略砂時計形状を有するように成形されており、その幅寸法は着用者の身体に当たる際にゴワ付き感を与えないサイズとなっている。
なお、吸収体１３は、形状保持と透液性表面シート１１を透過した体液の拡散性の向上のためにクレープ紙（図示省略。）によって囲繞することとしても良い。 The absorbent body 13 is formed, for example, so as to have a substantially hourglass shape in plan view, and the width dimension thereof is a size that does not give a feeling of gore when hitting the wearer's body.
The absorbent body 13 may be surrounded by crepe paper (not shown) in order to maintain the shape and improve the diffusibility of the body fluid that has passed through the liquid-permeable surface sheet 11.

吸収体１３の表面側（肌当接面側）を覆う透液性表面シート１１を形成する不織布の素材としては、天然繊維、合成繊維のいずれを用いても良い。天然繊維の例としては、綿、セルロース（木材パルプ）、羊毛、絹等が挙げられる。また合成繊維としては、ポリプロピレン（ＰＰ）、ポリエチレン（ＰＥ）、ナイロン、ポリエステル（ＰＥＴ）、アクリル等が挙げられ、またＰＥ／ＰＰ混合不織布、ＰＥ／ＰＥＴ混合不織布、また、上記素材を適宜組み合わせたバイコンポーネント繊維（混合繊維）も用いることができる。
また、これらの繊維性素材から不織布を製造する方法としては、公知の方法を適宜用いることができ、例えば、ケミカルボンド、サーマルボンド、スパンレース等のいずれの方法を用いてもよく、また合成繊維等では、スパンボンド法、メルトブロー法、またこれらと上記の接着方法の組み合わせ等、いずれの方法を用いて製造しても良い。
これらの加工法のうち、スパンレース法による不織布は柔軟性、ドレープ性に富む点で優れ、サーマルボンド法による不織布は嵩高でソフトである点で優れている。
また、透液性表面シート１１に多数の透孔を形成した場合には、尿などが速やかに吸収されるようになり、ドライタッチ性に優れたものとなる。 As a raw material of the nonwoven fabric which forms the liquid-permeable surface sheet 11 which covers the surface side (skin contact surface side) of the absorber 13, you may use either a natural fiber or a synthetic fiber. Examples of natural fibers include cotton, cellulose (wood pulp), wool, silk and the like. In addition, examples of synthetic fibers include polypropylene (PP), polyethylene (PE), nylon, polyester (PET), acrylic, and the like, and PE / PP mixed nonwoven fabric, PE / PET mixed nonwoven fabric, and combinations of the above materials as appropriate. Bicomponent fibers (mixed fibers) can also be used.
In addition, as a method for producing a nonwoven fabric from these fibrous materials, a known method can be used as appropriate. For example, any method such as chemical bond, thermal bond, and spun lace may be used. Etc., any method such as a spunbond method, a melt blow method, or a combination of these and the above-described adhesion method may be used.
Of these processing methods, the nonwoven fabric by the spunlace method is excellent in terms of richness in flexibility and drape, and the nonwoven fabric by the thermal bond method is excellent in terms of being bulky and soft.
Moreover, when many through-holes are formed in the liquid-permeable surface sheet 11, urine etc. will be absorbed rapidly and it will be excellent in dry touch property.

吸収体１３の裏面側（非肌当接面側）を覆う防水シート１２は、遮水性を有し、吸収体１３を通過した水様成分が外装体２０側に漏れることを防止する働きをなすものであり、例えば、ポリエチレンまたはポリプロピレンなどの不透液性プラスチックシートが用いられる。また、ムレ防止の点から透湿性を有するものが好適に用いられる。この遮水・透湿性シートは、例えば、ポリエチレンやポリプロピレン等のオレフィン樹脂中に無機充填材を溶融混練してシートを形成した後、一軸または二軸方向に延伸することにより得られる微多孔性シートである。微多孔性シートであれば、仮にシート厚が同じである場合に、無孔シートよりも剛性が低下するため、柔軟性の点でも勝るものとなる。
かかる防水シート１２としては、排便や尿などの褐色が視認しにくいように不透明なものを用いることが好ましい。防水シート１２の不透明化としては、オレフィン樹脂やプラスチック中に、炭酸カルシウム、酸化チタン、酸化亜鉛、ホワイトカーボン、クレイ、タルク、硫酸バリウムなどの顔料や充填材を添加してフィルム化したものが好適に使用される。 The waterproof sheet 12 that covers the back surface side (non-skin contact surface side) of the absorbent body 13 has water shielding properties and prevents water-like components that have passed through the absorbent body 13 from leaking to the exterior body 20 side. For example, a liquid-impermeable plastic sheet such as polyethylene or polypropylene is used. Further, those having moisture permeability are preferably used from the viewpoint of preventing stuffiness. This water-impervious / breathable sheet is, for example, a microporous sheet obtained by forming a sheet by melting and kneading an inorganic filler in an olefin resin such as polyethylene or polypropylene, and then stretching in a uniaxial or biaxial direction. It is. In the case of a microporous sheet, if the sheet thickness is the same, the rigidity is lower than that of the non-porous sheet, so that it is superior in terms of flexibility.
As such a waterproof sheet 12, it is preferable to use an opaque sheet so that brown such as defecation and urine is difficult to visually recognize. For making the waterproof sheet 12 opaque, a film formed by adding pigments and fillers such as calcium carbonate, titanium oxide, zinc oxide, white carbon, clay, talc, and barium sulfate in an olefin resin or plastic is suitable. Used for.

立体ギャザーＢＳは、不透液性のギャザー不織布１５を二つ折りにしてその基端部にて防水シート１２の側縁部を挟みこみ、折り合わされた面を、例えば、ホットメルトや、ヒートシール、超音波シール等により固着させることにより形成されている。折り返しによって二重にされたギャザー不織布１５の基端部の上面側には、透液性表面シート１１の側縁部が接着されている。
また、ギャザー不織布１５は、吸収性本体１０の長手方向中間部においては、立体ギャザーＢＳを形成する自由端部（起立端部）となっており、長手方向前後端部においては、吸収性本体１０の上面側に内側に折り畳まれてホットメルト接着剤等により接着された固定部となっている。 The three-dimensional gather BS folds the liquid-impervious gathered nonwoven fabric 15 in half and sandwiches the side edge of the waterproof sheet 12 at its base end, and the folded surface is, for example, hot melt, heat seal, It is formed by fixing with an ultrasonic seal or the like. The side edge portion of the liquid-permeable surface sheet 11 is bonded to the upper surface side of the base end portion of the gathered nonwoven fabric 15 that is doubled by folding.
Moreover, the gathering nonwoven fabric 15 becomes a free end part (standing end part) which forms solid gather BS in the longitudinal direction intermediate part of the absorptive main body 10, and the absorptive main body 10 in the longitudinal direction front-back end part. It is a fixed part that is folded inwardly on the upper surface side of the glass and bonded with a hot melt adhesive or the like.

また、ギャザー不織布１５の起立先端部には、複数本の糸状弾性伸縮部材１６・・・が配設されている。糸状弾性伸縮部材１６・・・は、弾性伸縮力によりギャザー不織布１５を起立させて立体ギャザーＢＳとするためのものである。   In addition, a plurality of thread-like elastic elastic members 16... The thread-like elastic stretch members 16... Are for raising the gathered nonwoven fabric 15 by an elastic stretch force to form a three-dimensional gather BS.

また、ギャザー不織布１５を構成する素材繊維は、上記した透液性表面シート１１を形成する不織布と同様の素材から構成され、また、これら不織布の製造方法もほぼ等しくなっているが、特に、ムレを防止するために秤量を抑えて通気性に優れた不織布を用いることが好ましい。さらに、ギャザー不織布１５については、尿などの透過を防止するとともに、カブレを防止し且つ肌への感触性（ドライ感）を高めるために、シリコン系、パラフィン金属系、アルキルクロミッククロイド系撥水材などをコーティングした撥水処理不織布を用いてもよい。   In addition, the material fibers constituting the gathered nonwoven fabric 15 are made of the same material as the nonwoven fabric forming the liquid-permeable surface sheet 11 described above, and the manufacturing methods of these nonwoven fabrics are almost the same. In order to prevent this, it is preferable to use a non-woven fabric that has a low weight and excellent air permeability. Furthermore, with respect to the gathered nonwoven fabric 15, in order to prevent the transmission of urine and the like, to prevent fogging, and to improve the feel to the skin (dry feeling), silicon-based, paraffin metal-based, alkylchromic chromoid-based water repellent material You may use the water-repellent treatment nonwoven fabric which coated etc.

（外装体）
外装体２０は、図１から図５に示すように、当該外装体２０を形作る外層シート２０Ａを備えている。外層シート２０Ａは、上層不織布２０ａと下層不織布２０ｂとの２枚の不織布を貼着して構成され、上層不織布２０ａ及び下層不織布２０ｂの間には、後述する各種の糸状の弾性部材が配設されて、伸縮性が付与されるようになっている。
また、外層シート２０Ａの内側（肌当接面側）には、腹側部Ｆ及び背側部Ｂにおいて、上層不織布２０ａの上面に胴周りシート２０Ｂ、２０Ｂが備えられ、良好な着用感を実現するようになっている。
この外装体２０は、その中間両側部にそれぞれ脚周り開口部Ｌを設けるための凹状の脚周りカットライン２３が形成され、紙おむつ１の着用者の股下周囲を覆う股下部Ｍと、股下部Ｍの前端側に位置し着用者の腹部を覆う腹側部Ｆと、股下部Ｍの後端側に位置し着用者の背部を覆う背側部Ｂと、を有しており、その平面形状は全体として擬似砂時計形状を成している。 (Exterior body)
As shown in FIGS. 1 to 5, the exterior body 20 includes an outer layer sheet 20 </ b> A that forms the exterior body 20. The outer layer sheet 20A is configured by sticking two nonwoven fabrics of an upper layer nonwoven fabric 20a and a lower layer nonwoven fabric 20b, and various thread-like elastic members described later are disposed between the upper layer nonwoven fabric 20a and the lower layer nonwoven fabric 20b. Thus, elasticity is imparted.
Further, on the inner side (skin contact surface side) of the outer layer sheet 20A, the waistline sheets 20B and 20B are provided on the upper surface of the upper non-woven fabric 20a in the abdominal side part F and the back side part B, thereby realizing a good wearing feeling. It is supposed to be.
The exterior body 20 is formed with a concave leg circumference cut line 23 for providing leg circumference openings L on both sides of the middle, and a crotch part M covering the crotch circumference of the wearer of the disposable diaper 1 and a crotch part M Of the crotch M and the back side B which covers the wearer's back, and the planar shape thereof is located on the front end side of the crotch M. As a whole, it has a pseudo hourglass shape.

外装体２０の一の側端部２１（２２）に沿った長手方向の所定位置には、腹側部Ｆと背側部Ｂとが融着されておらず、空間部を形成することが可能な非融着部Ｋと、非融着部Ｋに対して腰周り開口部Ｗ側の腹側部Ｆと背側部Ｂとが融着された上側融着部２１ａ（２２ａ）と、非融着部Ｋに対して脚周り開口部Ｌ側の腹側部Ｆと背側部Ｂとが融着された下側融着部２１ｂ（２２ｂ）と、を有している。
具体的には、図３に示すように、非融着部Ｋは、指を挿入することができる程度の大きさを有し、側端部２１、２２の中央部又は側端部２１、２２の中で強度が変化する強度変化部に対応する位置に設けられている。
即ち、非融着部Ｋは、図１から図３に示すように、外装体２０の両側端部２１、２２の中央部又は両側端部２１、２２の資材の重なり枚数が変化する部分に設けられている。
非融着部Ｋが中央部又は強度変化部に設けられていることにより、非融着部Ｋに指先を挿入し、融着部を引き裂く際に腰周り開口部Ｗ及び脚周り開口部Ｌまで融着部以外の部分が引き裂かれてしまうことを防止するとともに、強度が変化することにより引き裂きにくくなっている強度変化部に力が伝わりやすく、融着部を適切に引き裂くことができる。 At a predetermined position in the longitudinal direction along one side end portion 21 (22) of the exterior body 20, the ventral side portion F and the back side portion B are not fused, and a space portion can be formed. A non-fused portion K, an upper fused portion 21a (22a) in which a waist portion W and a ventral portion F on the waist opening W side are fused to the non-fused portion K; The lower side fusion | fusion part 21b (22b) by which the belly side part F and the back side part B by the side of the leg periphery opening part L were fuse | melted with respect to the wearing part K is provided.
Specifically, as shown in FIG. 3, the non-fused portion K has a size that allows a finger to be inserted, and is the center of the side end portions 21, 22 or the side end portions 21, 22. It is provided in the position corresponding to the intensity | strength change part from which intensity | strength changes.
That is, as shown in FIGS. 1 to 3, the non-fused portion K is provided in the central portion of the side end portions 21 and 22 of the exterior body 20 or the portion where the number of overlapping materials of the side end portions 21 and 22 changes. It has been.
Since the non-fused portion K is provided in the central portion or the strength changing portion, when the fingertip is inserted into the non-fused portion K and the fused portion is torn, the waist opening W and the leg circumference opening L are reached. While preventing parts other than a fusion | bond part from tearing, force is easily transmitted to the intensity | strength change part which has become difficult to tear by the intensity | strength changing, and a fusion | melting part can be teared appropriately.

また、図３に示すように、非融着部Ｋに対して腰周り開口部Ｗ側の腹側部Ｆと背側部Ｂとが融着された上側融着部２１ａ、２２ａと、非融着部Ｋに対して脚周り開口部Ｌ側の腹側部Ｆと背側部Ｂとが融着された下側融着部２１ｂ、２２ｂは、ヒートシール又は超音波シール等の公知の方法を用いて融着されている。更に、上側融着部２１ａ、２２ａ及び下側融着部２１ｂ、２２ｂは、引き裂き時に引き裂き方向を長手方向に沿うように誘導する誘導部を備えている。   Further, as shown in FIG. 3, upper fused portions 21 a and 22 a in which the abdominal side portion F and the back side portion B on the waist opening portion W side are fused to the non-fused portion K, The lower side fusion parts 21b and 22b in which the abdominal side part F and the back side part B on the leg opening L side with respect to the wearing part K are fused are known methods such as heat sealing or ultrasonic sealing. Used and fused. Further, the upper fused portions 21a and 22a and the lower fused portions 21b and 22b are provided with guiding portions that guide the tearing direction along the longitudinal direction when tearing.

誘導部は、上側融着部２１ａ、２２ａ及び下側融着部２１ｂ、２２ｂの幅方向に延在し、長手方向に沿って所定の間隔で設けられた第１エンボス凹部Ｅ１を備え、第１エンボス凹部Ｅ１は、外装体２０の端部から内側に向かって非融着部Ｋ側に傾斜している。
具体的には、誘導部は、図３に示すように、所定位置に設けられた非融着部Ｋを中心に、例えば、略ハの字状に傾斜した、斜め格子状の第１エンボス凹部Ｅ１が長手方向に沿って形成されている。なお、第１エンボス凹部Ｅ１は、各融着部において、所定の圧縮加工を施すことにより形成される。
誘導部は、上側融着部２１ａ、２２ａ及び下側融着部２１ｂ、２２ｂの幅方向に延在し、長手方向に沿って所定の間隔で設けられた第１エンボス凹部Ｅ１を備えることにより、着用者が使用中に外装体２０の内側から端部に向かってかける力に対しては引き裂かれにくい構造になっている。また、第１エンボス凹部Ｅ１は、外装体２０の端部から内側に向かって非融着部Ｋ側に傾斜していることにより、廃棄時に非融着部Ｋに指を挿入して引き裂く際に、融着部を引き裂く力が腰周り開口部Ｗ及び脚周り開口部Ｌまで伝わりやすく、融着部以外の部分が引き裂かれてしまうことを防止している。 The guide portion includes first embossed recesses E1 extending in the width direction of the upper fused portions 21a and 22a and the lower fused portions 21b and 22b and provided at predetermined intervals along the longitudinal direction. The embossed recess E1 is inclined toward the non-fused portion K from the end of the exterior body 20 toward the inside.
Specifically, as shown in FIG. 3, the guiding portion has a first embossed concave portion in the form of an oblique grid, for example, inclined in a substantially square shape around the non-fused portion K provided at a predetermined position. E1 is formed along the longitudinal direction. In addition, the 1st embossing recessed part E1 is formed by giving a predetermined | prescribed compression process in each melt | fusion part.
The guide portion includes first embossed recesses E1 that extend in the width direction of the upper fused portions 21a and 22a and the lower fused portions 21b and 22b and are provided at predetermined intervals along the longitudinal direction. It has a structure that is not easily torn against the force applied by the wearer from the inside to the end of the exterior body 20 during use. The first embossed recess E1 is inclined toward the non-fused portion K from the end of the exterior body 20 toward the inside, so that when the first embossed recess E1 is torn by inserting a finger into the non-fused portion K at the time of disposal. The force for tearing the fusion part is easily transmitted to the waist opening W and the leg opening L, and the parts other than the fusion part are prevented from being torn.

非融着部Ｋに対向し、当該非融着部Ｋよりも外装体２０の内側に、上側融着部２１ａ、２２ａ及び下側融着部２１ｂ、２２ｂと接する部分を有し、腹側部Ｆと背側部Ｂとが接着された中間接着部Ｓ１が設けられている。
具体的には、中間接着部Ｓ１は、図３及び図６に示すように、当該非融着部Ｋよりも外装体２０の内側であって、上側融着部２１ａ、２２ａ及び下側融着部２１ｂ、２２ｂと接する部分を有することで、両側端部２１、２２側に隙間ができない構造となっている。 There is a portion facing the non-fused portion K, inside the exterior body 20 with respect to the non-fused portion K, and in contact with the upper fused portions 21a and 22a and the lower fused portions 21b and 22b. An intermediate bonding portion S1 in which F and the back portion B are bonded is provided.
Specifically, as shown in FIGS. 3 and 6, the intermediate bonding portion S <b> 1 is inside the exterior body 20 with respect to the non-fused portion K, and the upper fused portions 21 a and 22 a and the lower fused portion. By having a portion in contact with the portions 21b and 22b, there is a structure in which there is no gap between the side end portions 21 and 22 side.

また、中間接着部Ｓ１は、腹側部Ｆと背側部Ｂとが融着され、外装体２０の端部に向かって幅が狭くなるように形成された第２エンボス凹部Ｅ２が、長手方向に沿って所定の間隔で設けられている。
具体的には、図６に示すように、第２エンボス凹部Ｅ２は、例えば、略三角形状に外装体２０の端部側の幅が狭く、外装体２０の内側の幅が広くなるように長手方向に沿って配置されている。従って、第２エンボス凹部Ｅ２が設けられた中間接着部Ｓ１は、外装体２０の内側よりも端部側の幅が狭いことから、着用者が非融着部Ｋに指先を挿入して融着部を引き裂く場合に引き裂きやすい。一方、着用者が使用している場合においては、第２エンボス凹部Ｅ２の幅は、外装体の内側の方が端部よりも広いため、外装体２０の内側から両側端部２１、２２に向かってかかる力に対して引き裂かれにくい構造となっている。
なお、第１エンボス凹部Ｅ１及び第２エンボス凹部Ｅ２の圧着面積は、適宜設定可能である。 Further, the middle embossed portion S1 has a second embossed concave portion E2 formed so that the abdominal side portion F and the back side portion B are fused and the width becomes narrower toward the end portion of the exterior body 20. Are provided at predetermined intervals.
Specifically, as shown in FIG. 6, the second embossed recess E <b> 2 is long, for example, in a substantially triangular shape so that the width on the end side of the exterior body 20 is narrow and the width on the inner side of the exterior body 20 is wide. Arranged along the direction. Accordingly, the intermediate bonding portion S1 provided with the second embossed recess E2 is narrower on the end side than the inner side of the exterior body 20, so that the wearer inserts the fingertip into the non-fused portion K for fusion. It is easy to tear when tearing a part. On the other hand, when the wearer is using, the width of the second embossed recess E2 is wider from the inner side of the outer package to the end portions 21 and 22 from the inner side of the outer package 20. The structure is difficult to tear against the applied force.
In addition, the crimping | compression-bonding area of the 1st embossing recessed part E1 and the 2nd embossing recessed part E2 can be set suitably.

また、外装体２０は、腹側部Ｆ及び背側部Ｂのそれぞれにおいて、腰周り開口部Ｗの開口端部側（上側）に配置される複数のウエスト弾性部材２４・・・と、腹側部Ｆ及び背側部Ｂのそれぞれにおいて、一の側端部２１（２２）から他方の側端部２２（２１）に亘り、腰周りに沿う方向に延在するよう配設された複数の腰周り弾性部材２５・・・と、腹側部Ｆ及び背側部Ｂのそれぞれにおいて、両側端２１、２２から脚周り開口部Ｌの脚周りカットライン２３（縁部）に沿って股下部Ｍ側に延びるように配設された複数の脚周り弾性部材２６・・・と、を備えている。   Moreover, the exterior body 20 includes a plurality of waist elastic members 24 arranged on the opening end side (upper side) of the waist opening W in each of the ventral side F and the back side B, and the ventral side. In each of the part F and the back side part B, a plurality of waists arranged so as to extend in the direction along the waist from the one side end part 21 (22) to the other side end part 22 (21). In each of the surrounding elastic members 25... And the ventral side F and the back side B, the crotch M side along the leg cutting line 23 (edge) of the leg opening L from both side ends 21 and 22. And a plurality of leg-around elastic members 26...

ウエスト弾性部材２４は、腹側部Ｆと背側部Ｂとが融着される両側端２１、２２の上下方向の幅である範囲のうち、腰周り開口部Ｗの近傍において上下方向に間隔をおいて配設された複数条の糸ゴム状弾性部材であり、身体のウエスト部周りを締め付けるように伸縮力を付与し、紙おむつ１を身体に装着するためのものである。   The waist elastic member 24 is spaced in the vertical direction in the vicinity of the waist opening W in the range of the width in the vertical direction of the side ends 21 and 22 where the ventral side F and the back side B are fused. A plurality of thread rubber-like elastic members disposed on the body, for applying an elastic force so as to tighten around the waist part of the body, and for attaching the disposable diaper 1 to the body.

腰周り弾性部材２５は、腹側部Ｆと背側部Ｂとのそれぞれにおいて、ウエスト弾性部材２４より股下部Ｍ側に上下方向に所定の間隔をおいて互いに略平行に配設された複数条の糸ゴム状の弾性伸縮部材であり、腹側部Ｆ及び背側部Ｂの腰周り部分を締め付けるように伸縮力を付与する。この複数の腰周り弾性部材２５・・・は、外装体２０に所定の幅、範囲に亘って配設されることにより、腹側部Ｆや背側部Ｂの全面を身体により密着させるようになっている。   The waist elastic member 25 has a plurality of strips arranged substantially parallel to each other at a predetermined interval in the vertical direction on the crotch M side from the waist elastic member 24 in each of the abdominal side F and the back side B. This elastic elastic member is made of a rubber thread, and gives an elastic force so as to tighten the waist portions of the ventral side F and the back side B. The plurality of waist elastic members 25... Are arranged on the exterior body 20 over a predetermined width and range so that the entire surface of the abdominal side F and the back side B is brought into close contact with the body. It has become.

脚周り弾性部材２６は、腹側部Ｆ及び背側部Ｂにおいて、腰周り弾性部材２５とは別に配設された複数本の糸ゴム状の弾性伸縮部材である。この複数の脚周り弾性部材２６・・・は、外装体２０に所定の幅、範囲に亘って配設されることにより、外装体２０の脚周り部分を身体に密着させる。
具体的には、脚周り弾性部材２６は、腹側部Ｆ及び背側部Ｂの一方の側端部２１（２２）から、ほぼ脚周りカットライン２３に沿うように股下部Ｍ側に延び、その股下部Ｍを迂回するようにして、他方側の脚周りカットライン２３にほぼ沿いながら他方の側端部２２（２１）に到達するように配設されている。 The leg-surrounding elastic member 26 is a plurality of elastic rubber-like elastic members that are disposed separately from the waist-surrounding elastic member 25 in the abdominal side F and the back side B. The plurality of leg-around elastic members 26... Are arranged on the exterior body 20 over a predetermined width and range, thereby bringing the leg-around portions of the exterior body 20 into close contact with the body.
Specifically, the leg elastic member 26 extends from the one side end 21 (22) of the ventral side F and the back side B to the crotch M side so as to substantially follow the leg cut line 23. It is arranged so as to bypass the crotch part M and reach the other side end 22 (21) while being substantially along the leg-side cut line 23 on the other side.

以上のように、本実施形態の紙おむつ１によれば、両側端部２１、２２は、一の側端部２１（２２）に沿った長手方向の所定位置に腹側部Ｆと背側部Ｂとが融着されておらず、空間部を形成することが可能な非融着部Ｋと、非融着部Ｋに対して腰周り開口部Ｗ側の腹側部Ｆと背側部Ｂとが融着された上側融着部２１ａ、２２ａと、非融着部Ｋに対して脚周り開口部Ｌ側の腹側部Ｆと背側部Ｂとが融着された下側融着部２１ｂ、２２ｂと、を有し、非融着部Ｋは、指を挿入することができる程度の大きさを有し、上側融着部２１ａ、２２ａ及び下側融着部２１ｂ、２２ｂは、引き裂き時に引き裂き方向を長手方向に沿うように誘導する誘導部を備える。
従って、上側融着部２１ａ、２２ａと下側融着部２１ｂ、２２ｂとの間に指先を挿入することができる非融着部Ｋが設けられているため、融着部を引き裂きやすい。また、上側融着部２１ａ、２２ａ及び下側融着部２１ｂ、２２ｂは、引き裂き時に引き裂き方向を長手方向に沿うように誘導する誘導部を備えるため、融着部以外の部分が引き裂かれてしまうことを防止し、融着部を適切に引き裂くことができる。 As described above, according to the disposable diaper 1 of the present embodiment, the both side end portions 21 and 22 are located at the predetermined positions in the longitudinal direction along the one side end portion 21 (22) and the ventral side portion F and the back side portion B. And non-fused portion K that can form a space portion, and abdominal side portion F and back side portion B on the waist opening portion W side with respect to non-fused portion K, Are bonded to the upper fusion portions 21a and 22a, and the lower fusion portion 21b is formed by fusing the ventral side portion F and the back portion B on the side of the leg opening L with respect to the non-fusion portion K. 22b, and the non-fused portion K is large enough to insert a finger, and the upper fused portions 21a, 22a and the lower fused portions 21b, 22b A guiding portion that guides the tearing direction along the longitudinal direction is provided.
Therefore, since the non-fused portion K into which the fingertip can be inserted is provided between the upper fused portions 21a and 22a and the lower fused portions 21b and 22b, the fused portions are easily torn. Moreover, since upper side fusion | fusion part 21a, 22a and lower side fusion | fusion part 21b, 22b are provided with the guidance | induction part which guides a tearing direction along a longitudinal direction at the time of tearing, parts other than a fusion | fusion part will be torn. This can be prevented and the fused portion can be torn appropriately.

また、非融着部Ｋは、側端部２１、２２の中央部又は側端部２１、２２の中で強度が変化する強度変化部に対応する位置に設けられているため、融着部を引き裂く力が適切に腰周り開口部Ｗ及び脚周り開口部Ｌまで伝えることができ、強度が変化することにより引き裂きにくい強度変化部に引き裂く力を伝えやすくなる。   Moreover, since the non-fusion part K is provided in the position corresponding to the intensity | strength change part from which the intensity | strength changes in the center part or the side edge parts 21 and 22 of the side edge parts 21 and 22, a fusion | melting part is provided. The tearing force can be properly transmitted to the waist opening W and the leg opening L, and by changing the strength, the tearing force can be easily transmitted to the strength changing portion that is difficult to tear.

また、誘導部は、上側融着部２１ａ、２２ａ及び下側融着部２１ｂ、２２ｂの幅方向に延在し、長手方向に沿って所定の間隔で設けられた第１エンボス凹部Ｅ１を備え、第１エンボス凹部Ｅ１は、外装体２０の端部から内側に向かって非融着部Ｋ側に傾斜しているため、融着部を引き裂く際に腰周り開口部Ｗ側及び脚周り開口部Ｌ側まで適切に引き裂く力を伝えることができるとともに、装着時に外装体２０の内側から力がかかる場合には引き裂けにくい。   The guide portion includes first embossed recesses E1 that extend in the width direction of the upper fused portions 21a and 22a and the lower fused portions 21b and 22b and are provided at predetermined intervals along the longitudinal direction. Since the first embossed recess E1 is inclined inward from the end of the exterior body 20 toward the non-fused portion K, when the fused portion is torn, the waist circumference opening W side and the leg circumference opening L The tearing force can be transmitted appropriately to the side, and it is difficult to tear when a force is applied from the inside of the exterior body 20 during mounting.

非融着部Ｋに対向し、当該非融着部よりも外装体２０の内側に、上側融着部２１ａ、２２ａ及び下側融着部２１ｂ、２２ｂと接する部分を有し、腹側部Ｆと背側部Ｂとが接着された中間接着部Ｓ１が設けられ、中間接着部Ｓ１は、腹側部Ｆと背側部Ｂとが融着されているため、両側端部２１、２２側が連続的に融着される。一方、外装体２０の端部に向かって幅が狭くなるように形成された第２エンボス凹部Ｅ２が、長手方向に沿って所定の間隔で設けられているため、融着部を引き裂く際には引き裂く力を入れやすく、装着時には引き裂けにくい。   There is a portion facing the non-fused portion K, inside the outer package 20 with respect to the non-fused portion, and in contact with the upper fused portions 21a, 22a and the lower fused portions 21b, 22b. An intermediate adhesive part S1 in which the back side part B is bonded to each other is provided, and the intermediate side S1 has the abdomen side part F and the back side part B fused together, so that both end parts 21 and 22 side are continuous. Fused. On the other hand, since the second embossed recesses E2 formed so as to become narrower toward the end portion of the exterior body 20 are provided at predetermined intervals along the longitudinal direction, when tearing the fused portion Easy to apply tearing force and difficult to tear when worn.

＜変形例１＞
上記実施形態１において、図７に示すように、中間接着部Ｓ２を、腹側部Ｆと背側部Ｂとが着脱可能に接着される接着部材Ｊを備える構成としてもよい。即ち、中間接着部Ｓ２は、例えば、粘着テープのような着脱可能な接着部材Ｊを用いることができる。更に、中間接着部Ｓ２に設けられた接着部材Ｊは、フックテープであってもよい。なお、フックテープに使用される素材としては、ポリプロピレン（ＰＰ）、ポリエチレン（ＰＥ）、ポリエステル（ＰＥＴ）等の合成繊維など公知の種々のものを利用することが可能である。
変形例１によれば、中間接着部Ｓ２は、腹側部Ｆと背側部Ｂとが着脱可能に接着される接着部材Ｊを備え、中間接着部Ｓ２に設けられた接着部材Ｊがフックテープであることにより、中間接着部Ｓ２に指先を入れて引き裂く場合に、中間接着部Ｓ２の接着を容易に外すことができ、また、接着部Ｓ２をヒートシール又は超音波シールのように溶融接着していないので通気性を保つことができる。更に、使用後の紙おむつ１を捨てる場合に、接着部Ｓ２のフックテープにより外層シート２０Ａを係止することで小さく丸めて捨てることができる。 <Modification 1>
In the said Embodiment 1, as shown in FIG. 7, it is good also as a structure provided with the adhesion member J to which the abdominal side part F and the back | dorsal side part B are detachably bonded, as shown in FIG. That is, for example, a removable adhesive member J such as an adhesive tape can be used for the intermediate adhesive portion S2. Furthermore, the adhesive member J provided in the intermediate adhesive portion S2 may be a hook tape. In addition, as a raw material used for a hook tape, various well-known things, such as synthetic fibers, such as a polypropylene (PP), polyethylene (PE), and polyester (PET), can be utilized.
According to the modified example 1, the intermediate bonding portion S2 includes the bonding member J to which the abdominal side portion F and the back side portion B are detachably bonded, and the bonding member J provided in the intermediate bonding portion S2 is a hook tape. Therefore, when the fingertip is put into the intermediate bonding portion S2 and tearing, the bonding of the intermediate bonding portion S2 can be easily removed, and the bonding portion S2 is melt-bonded like a heat seal or an ultrasonic seal. The air permeability can be kept because it is not. Further, when the used paper diaper 1 is discarded, the outer layer sheet 20A is locked by the hook tape of the adhesive portion S2, and can be discarded by being rounded down.

＜実施形態２＞
実施形態２における紙おむつ２について図８から図１０に示す。実施形態２の紙おむつ２は、上記実施形態１に示した紙おむつ１と以下に説明する以外の点で略同様の構成であり、詳細な説明は省略する。
図８から図１０に示すように、上側融着部２１ａの腹側部Ｆ及び下側融着部２２ｂの背側部Ｂに誘導部として、誘導シートＨを設ける構成としても良い。
具体的には、図８に示すように、誘導部は、上側融着部２１ａ、２２ａ及び下側融着部２１ｂ、２２ｂの領域を覆い、且つ、上側融着部２１ａ、２２ａ及び下側融着部２１ｂ、２２ｂの面積よりも大きく、引き裂き時に引き裂き方向を長手方向に沿うように誘導する誘導シートＨを備え、誘導シートＨは、上側融着部２１ａにおける融着前の腹側部Ｆに設けられるともに、下側融着部２２ｂにおける融着前の背側部Ｂに設けられている。
即ち、誘導シートＨは、図９に示すように、腹側部Ｆにおいては上側融着部２１ａに設けられており、図示は省略するが、背側部Ｂにおいては、下側融着部２２ｂに設けられている。また、図１０は、誘導シートＨが設けられた上側融着部２１ａの腹側部Ｆ及び下側融着部２２ｂの背側部Ｂが融着される様子を表している。
なお、誘導シートＨを形成する不織布の素材としては、ポリプロピレン（ＰＰ）、ポリエチレン（ＰＥ）、ポリエステル（ＰＥＴ）等の合成繊維が挙げられる。また、これらの合成繊維から不織布を製造する方法としては、公知の方法を適宜用いることができ、例えば、スパンボンド、メルトブロー等の方法を用いることができる。
実施形態２によれば、誘導部は、上側融着部２１ａ、２２ａ及び下側融着部２１ｂ、２２ｂの領域を覆い、且つ、上側融着部２１ａ、２２ａ及び下側融着部２１ｂ、２２ｂの面積よりも大きく、引き裂き時に引き裂き方向を長手方向に沿うように誘導する誘導シートＨを備え、誘導シートＨは、上側融着部２１ａにおける融着前の腹側部Ｆに設けられるともに、下側融着部２２ｂにおける融着前の背側部Ｂに設けられているため、着用者が非融着部Ｋに指先を入れて融着部を引き裂く場合に、引き裂く一の側端部２１（２２）側の手で外装体２０の背側部Ｂを掴み、逆の手で外装体２０の腹側部Ｆを掴むことから、誘導シートＨによって各融着部に引き裂く力を集中的に伝えることができる。
なお、実施形態２において、誘導部は、誘導シートＨを備えるとともに第１エンボス凹部Ｅ１及び第２エンボス凹部Ｅ２を有する場合を例示して説明したが、第１エンボス凹部Ｅ１又は第２エンボス凹部Ｅ２のどちらか一方のみを用いてもよいし、どちらも用いない構成であってもよい。また、実施形態２において、中間接着部Ｓ１を例示して説明したが、中間接着部Ｓ２を用いてもよく、中間接着部Ｓ１、Ｓ２を設けない構成であってもよい。 <Embodiment 2>
The paper diaper 2 in Embodiment 2 is shown in FIGS. The paper diaper 2 of the second embodiment has substantially the same configuration as the paper diaper 1 shown in the first embodiment except for the points described below, and detailed description thereof is omitted.
As shown in FIGS. 8 to 10, a guide sheet H may be provided as a guide portion on the ventral side portion F of the upper side fusion portion 21 a and the back side portion B of the lower side fusion portion 22 b.
Specifically, as shown in FIG. 8, the guide portion covers the regions of the upper fusion portions 21a and 22a and the lower fusion portions 21b and 22b, and the upper fusion portions 21a and 22a and the lower fusion portions. The guide sheet H is larger than the area of the wearing parts 21b and 22b and guides the tearing direction along the longitudinal direction at the time of tearing. The guiding sheet H is provided on the ventral side part F before the fusion in the upper fusion part 21a. It is provided at the back side portion B before the fusion at the lower side fusion portion 22b.
That is, as shown in FIG. 9, the guide sheet H is provided in the upper side fusion part 21 a in the abdominal side part F, and although not shown, in the back side part B, the lower side fusion part 22 b. Is provided. Moreover, FIG. 10 represents a mode that the ventral | abdominal side part F of the upper side fusion | fusion part 21a in which the guidance sheet | seat H was provided, and the back side part B of the lower side fusion | fusion part 22b are fuse | melted.
In addition, as a raw material of the nonwoven fabric which forms the induction | guidance | derivation sheet | seat H, synthetic fibers, such as a polypropylene (PP), polyethylene (PE), polyester (PET), are mentioned. Moreover, as a method of manufacturing a nonwoven fabric from these synthetic fibers, a well-known method can be used suitably, for example, methods, such as a spun bond and a melt blow, can be used.
According to the second embodiment, the guide portion covers the regions of the upper fusion portions 21a and 22a and the lower fusion portions 21b and 22b, and the upper fusion portions 21a and 22a and the lower fusion portions 21b and 22b. The guide sheet H is provided so as to guide the tearing direction along the longitudinal direction at the time of tearing. The guide sheet H is provided on the abdominal side F before the fusion in the upper fusion part 21a, Since it is provided in the back side B before fusion in the side fusion part 22b, when a wearer puts a fingertip in the non-fusion part K and tears the fusion part, one side end part 21 ( 22) Since the back side B of the exterior body 20 is grasped by the hand on the side and the abdominal side F of the exterior body 20 is grasped by the opposite hand, the tearing force is intensively transmitted to each fusion part by the guide sheet H. be able to.
In addition, in Embodiment 2, although the guidance part demonstrated and demonstrated the case where it provided with the guidance sheet | seat H and had the 1st embossing recessed part E1 and the 2nd embossing recessed part E2, 1st embossing recessed part E1 or 2nd embossed recessed part E2 was demonstrated. Either one of these may be used, or a configuration in which neither is used. In the second embodiment, the intermediate bonding portion S1 has been described as an example. However, the intermediate bonding portion S2 may be used, and the intermediate bonding portions S1 and S2 may not be provided.

１、２ 吸収性物品（紙おむつ）
１０ 吸収性本体
１１ 透液性表面シート
１２ 防水シート
１３ 吸収体
１５ ギャザー不織布
１６ 糸状弾性伸縮部材
２０ 外装体
２０Ａ 外層シート
２０Ｂ 胴周りシート
２０ａ 上層不織布
２０ｂ 下層不織布
２１、２２ 側端部
２１ａ、２２ａ 上側融着部
２１ｂ、２２ｂ 下側融着部
２３ カットライン
２４ ウエスト弾性部材
２５ 腰周り弾性部材
２６ 脚周り弾性部材
Ｆ 腹側部
Ｂ 背側部
Ｍ 股下部
ＢＳ 立体ギャザー
Ｗ 腰周り開口部
Ｌ 脚周り開口部
Ｋ 非融着部
Ｊ 接着部材
Ｓ１、Ｓ２ 中間接着部
Ｅ１ 第１エンボス凹部（誘導部）
Ｅ２ 第２エンボス凹部（誘導部）
Ｈ 誘導シート（誘導部） 1, 2, Absorbent articles (paper diapers)
DESCRIPTION OF SYMBOLS 10 Absorbent main body 11 Liquid permeable surface sheet 12 Waterproof sheet 13 Absorber 15 Gathered nonwoven fabric 16 Filiform elastic elastic member 20 Exterior body 20A Outer layer sheet 20B Girth circumference sheet 20a Upper layer nonwoven fabric 20b Lower layer nonwoven fabric 21, 22 Side end 21a, 22a Upper side Fusion part 21b, 22b Lower side fusion part 23 Cut line 24 Waist elastic member 25 Waist circumference elastic member 26 Leg circumference elastic member F Abdominal side part B Back side part M Crotch part BS Three-dimensional gather W Waist circumference opening part L Leg circumference Opening K Non-fused part J Adhesive members S1, S2 Intermediate adhesive part E1 First embossed concave part (guidance part)
E2 Second embossed recess (guide)
H Guidance sheet (guidance part)

Claims (7)

吸収体を含む吸収性本体と、
前記吸収性本体の外面側に設けられ、着用時に人体の腹側に位置する腹側部及び背側に位置する背側部を有する外装体と、
を備え、
前記外装体の前記腹側部と前記背側部とが、その両側端部に融着部を有し、腰周り開口部及び左右一対の脚周り開口部が形成された吸収性物品であって、
前記両側端部は、
一の側端部に沿った長手方向の所定位置に前記腹側部と前記背側部との間に空間部を形成することが可能な非融着部と、
前記非融着部に対して前記腰周り開口部側の前記腹側部と前記背側部とが融着された上側融着部と、
前記非融着部に対して前記脚周り開口部側の前記腹側部と前記背側部とが融着された下側融着部と、
を有し、
前記非融着部は、指を挿入することができる程度の大きさを有し、
前記上側融着部及び前記下側融着部は、引き裂き時に引き裂き方向を長手方向に沿うように誘導する誘導部を備え、
前記誘導部には、前記上側融着部及び前記下側融着部の幅方向に延在し、前記腹側部及び前記背側部が圧着された第１凹部が長手方向に沿って所定の間隔で設けられ、
前記第１凹部は、前記外装体の端部から内側に向かって前記非融着部側に傾斜していることを特徴とする吸収性物品。 An absorbent body including an absorbent body;
An exterior body which is provided on the outer surface side of the absorbent main body and has a ventral side part located on the abdominal side of the human body and a back side part located on the back side when worn;
With
The abdominal side portion and the back side portion of the exterior body are absorbent articles having fusion portions at both end portions thereof, and a waist opening portion and a pair of left and right leg opening portions are formed. ,
The side ends are
A non-fused portion capable of forming a space portion between the ventral side portion and the back side portion at a predetermined position in the longitudinal direction along one side end portion;
An upper fused portion in which the abdomen side portion and the dorsal side portion on the waist opening side are fused to the non-fused portion;
A lower fusion part in which the abdominal side part and the back side part on the leg opening part side are fused to the non-fusion part;
Have
The non-fused portion has a size that allows a finger to be inserted,
The upper fused portion and the lower fused portion include a guide portion that guides the tearing direction along the longitudinal direction when tearing,
The guide portion has a first recess extending in the width direction of the upper side fusion portion and the lower side fusion portion, and having the abdomen side portion and the back side portion crimped thereto along a longitudinal direction. Provided at intervals,
The said 1st recessed part inclines to the said non-fusion | fusion part side toward the inner side from the edge part of the said exterior body, The absorbent article characterized by the above-mentioned. 吸収体を含む吸収性本体と、
前記吸収性本体の外面側に設けられ、着用時に人体の腹側に位置する腹側部及び背側に位置する背側部を有する外装体と、
を備え、
前記外装体の前記腹側部と前記背側部とが、その両側端部に融着部を有し、腰周り開口部及び左右一対の脚周り開口部が形成された吸収性物品であって、
前記両側端部は、
一の側端部に沿った長手方向の所定位置に前記腹側部と前記背側部との間に空間部を形成することが可能な非融着部と、
前記非融着部に対して前記腰周り開口部側の前記腹側部と前記背側部とが融着された上側融着部と、
前記非融着部に対して前記脚周り開口部側の前記腹側部と前記背側部とが融着された下側融着部と、
を有し、
前記非融着部は、指を挿入することができる程度の大きさを有し、
前記上側融着部及び前記下側融着部は、引き裂き時に引き裂き方向を長手方向に沿うように誘導する誘導部を備え、
前記非融着部よりも前記外装体の内側に、前記上側融着部の内側且つ下側の隅部及び前記下側融着部の内側且つ上側の隅部の各々とそれぞれ接する部分を有し、前記腹側部と前記背側部とが接着された中間接着部が設けられていることを特徴とする吸収性物品。 An absorbent body including an absorbent body;
An exterior body which is provided on the outer surface side of the absorbent main body and has a ventral side part located on the abdominal side of the human body and a back side part located on the back side when worn;
With
The abdominal side portion and the back side portion of the exterior body are absorbent articles having fusion portions at both end portions thereof, and a waist opening portion and a pair of left and right leg opening portions are formed. ,
The side ends are
A non-fused portion capable of forming a space portion between the ventral side portion and the back side portion at a predetermined position in the longitudinal direction along one side end portion;
An upper fused portion in which the abdomen side portion and the dorsal side portion on the waist opening side are fused to the non-fused portion;
A lower fusion part in which the abdominal side part and the back side part on the leg opening part side are fused to the non-fusion part;
Have
The non-fused portion has a size that allows a finger to be inserted,
The upper fused portion and the lower fused portion include a guide portion that guides the tearing direction along the longitudinal direction when tearing,
Inside the exterior body of the non-fused portion, there are portions respectively in contact with the inner and lower corners of the upper fused portion and the inner and upper corner portions of the lower fused portion, respectively. An absorbent article characterized in that an intermediate adhesive part in which the ventral part and the back part are bonded is provided. 前記誘導部には、前記上側融着部及び前記下側融着部の幅方向に延在し、前記腹側部及び前記背側部が圧着された第１凹部が長手方向に沿って所定の間隔で設けられ、
前記第１凹部は、前記外装体の端部から内側に向かって前記非融着部側に傾斜していることを特徴とする請求項２に記載の吸収性物品。 The guide portion has a first recess extending in the width direction of the upper side fusion portion and the lower side fusion portion, and having the abdomen side portion and the back side portion crimped thereto along a longitudinal direction. Provided at intervals,
The absorbent article according to claim 2, wherein the first recess is inclined toward the non-fused portion from the end of the exterior body toward the inside. 前記中間接着部には、前記外装体の端部に向かって幅が狭くなるように形成され、前記腹側部及び前記背側部が圧着された第２凹部が、長手方向に沿って所定の間隔で設けられていることを特徴とする請求項２又は３に記載の吸収性物品。 The intermediate bonding portion is formed so that the width thereof becomes narrower toward the end portion of the exterior body, and a second concave portion to which the abdomen side portion and the back side portion are crimped has a predetermined length along the longitudinal direction. The absorbent article according to claim 2 or 3, wherein the absorbent article is provided at intervals. 前記中間接着部は、
前記腹側部と前記背側部とが着脱可能に接着される接着部材を備えることを特徴とする請求項２又は３に記載の吸収性物品。 The intermediate adhesive portion is
The absorptive article according to claim 2 or 3 provided with the adhesion member to which said abdomen side part and said back side part are pasted up detachably. 前記中間接着部に設けられた接着部材がフックテープであることを特徴とする請求項５に記載の吸収性物品。   The absorbent article according to claim 5, wherein the adhesive member provided in the intermediate adhesive portion is a hook tape. 前記非融着部は、前記側端部の中央部又は前記側端部の中で強度が変化する強度変化部に対応する位置に設けられていることを特徴とする請求項１〜６の何れか一項に記載の吸収性物品。   The said non-fusion | fusion part is provided in the position corresponding to the intensity | strength change part from which the intensity | strength changes in the center part of the said side edge part, or the said side edge part. An absorbent article according to any one of the above.
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