【０００１】[0001]
【発明の属する技術分野】本発明は、フィット性、吸収
性能及び漏れ防止性能に優れた使い捨ておむつ等の吸収
性物品に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an absorbent article such as a disposable diaper excellent in fitting property, absorbing performance and leak preventing performance.
【０００２】[0002]
【従来の技術及び発明が解決しようとする課題】従来、
吸収性物品として、液透過性の表面シート、液不透過性
の裏面シート及び両シート間に介在された液保持性の吸
収体を備え、腹側部及び／又は背側部の幅方向に、複数
の胴周囲部弾性部材が所定間隔で配されている使い捨て
おむつが知られている。斯かる胴周囲部弾性部材を配設
することで、胴廻りにおけるフィット性を向上させ、ま
た、漏れ防止性能を向上させることができる。しかし、
他方において、着用中に吸収体に縮みやヨレが発生し、
吸収体が本来有する吸収性能が充分に発揮されなくなる
恐れがあり、また、外観が悪化する場合もある。2. Description of the Related Art
As an absorbent article, a liquid-permeable top sheet, a liquid-impermeable back sheet and a liquid-retentive absorber interposed between both sheets are provided, and in the width direction of the abdomen and / or the back, 2. Description of the Related Art Disposable diapers in which a plurality of waist peripheral elastic members are arranged at predetermined intervals are known. By arranging such a trunk periphery elastic member, it is possible to improve the fit around the trunk and improve the leakage prevention performance. But,
On the other hand, shrinkage and twist occur in the absorber during wearing,
There is a possibility that the absorption performance originally possessed by the absorber may not be sufficiently exhibited, and the appearance may be deteriorated.
【０００３】これらの不都合を回避するためには、胴周
囲部弾性部材を、前記吸収体の両側縁の外方にのみ配す
ることが考えられる。例えば、胴周囲部弾性部材を、腹
側部及び／又は背側部の幅方向に連続的に配し、これを
吸収体上で切断して左右に分割する方法が考えられる。
しかし、太い糸ゴム等の伸縮応力が大きい弾性部材や、
タルクが表面に付着している天然ゴム等の接着性の悪い
弾性部材を用いた場合には、切断によって、製造中又は
装着中に、ゴム抜けが生じることによって、伸長状態が
解除されて胴回りのフィット性が損なわれたり、漏れ防
止性能が低下したりする恐れがある。また、伸縮応力の
小さい弾性部材を用いた場合には、今度は、胴回りの締
め付け力が不足し、胴回りのフィット性が損なわれた
り、漏れ防止効果が低下したりする恐れがある。また、
伸縮応力の小さい弾性部材を高伸長率で配設した場合に
は、弾性部材を挟持する不織布等のシートとの接着性を
低下させることになる。In order to avoid these inconveniences, it is conceivable to dispose the elastic member around the trunk only outside the both side edges of the absorber. For example, a method is conceivable in which a waist peripheral elastic member is continuously arranged in the width direction of the abdominal part and / or the dorsal part, and is cut on the absorber to be divided into right and left parts.
However, elastic members such as thick thread rubber that have a large stretching stress,
If an elastic member with poor adhesion such as natural rubber with talc adhered to the surface is used, the stretched state is released due to the rubber coming off during manufacturing or mounting by cutting, and the waist circumference is released. There is a possibility that the fitting property is impaired or the leak prevention performance is reduced. Further, when an elastic member having a small stretching stress is used, the tightening force around the waist may be insufficient, and the fit around the waist may be impaired, or the effect of preventing leakage may be reduced. Also,
When an elastic member having a small stretching stress is disposed at a high elongation rate, the adhesiveness to a sheet such as a nonwoven fabric sandwiching the elastic member is reduced.
【０００４】また、ゴム抜けを防止するために、弾性部
材固定用の接着剤の量を増量すると、多量の接着剤によ
って柔軟性が低下し、弾性部材が持つ伸縮物性が阻害さ
れてフィット性を低下させる原因となり、更には、装着
者の肌へ物理的な刺激を及ぼす可能性がある。また、弾
性部材を挟持する不織布等のシートから接着剤が染み出
し、べたつきによる不快感、更にはカブレの原因となる
恐れもある。When the amount of the adhesive for fixing the elastic member is increased in order to prevent the rubber from coming off, the flexibility is reduced by a large amount of the adhesive, and the elastic property of the elastic member is hindered, and the fitting property is impaired. It may cause a decrease and may cause physical irritation to the wearer's skin. In addition, the adhesive may exude from a sheet of nonwoven fabric or the like sandwiching the elastic member, which may cause discomfort due to stickiness and cause rash.
【０００５】従って、本発明の目的は、製品開発時に、
胴回りに適正な締め付け力が得られるように、胴周囲部
弾性部材の伸長応力やその配設伸張率を自由に決定で
き、胴回りの柔軟性の悪化や肌への刺激等の不都合を伴
わずに、フィット性や吸収性能、漏れ防止性能を向上さ
せることのできる使い捨ておむつ等の吸収性物品を提供
することにある。Accordingly, an object of the present invention is to
The extension stress of the elastic member around the torso and the elongation rate can be freely determined so that the proper tightening force can be obtained around the waist, without inconvenience such as deterioration of the waist flexibility and irritation to the skin. Another object of the present invention is to provide an absorbent article such as a disposable diaper capable of improving fit, absorption performance, and leakage prevention performance.
【０００６】[0006]
【課題を解決するための手段】本発明は、液透過性の表
面シート、液不透過性の裏面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備え、腹側部、背側部及び
股下部を有し、腹側部及び／又は背側部の幅方向に、複
数の胴周囲部弾性部材が所定間隔で配されている吸収性
物品において、前記胴周囲部弾性部材は、前記吸収体が
存在する部位においては、弾性伸縮性を発現しないよう
になされ、該吸収体の両側縁の外方においては、第１固
定手段により吸収性物品の構成材に固定されて弾性伸縮
性を発現するようになされており、前記胴周囲部弾性部
材は、弾性伸縮性を発現しない部分と弾性伸縮性を発現
する部分との境界部付近において、第２固定手段により
吸収性物品の構成材に固定されている吸収性物品を提供
することにより、前記目的を達成したものである。SUMMARY OF THE INVENTION The present invention comprises a liquid-permeable top sheet, a liquid-impermeable back sheet, and a liquid-retentive absorber interposed between the two sheets. Part and a crotch part, in the width direction of the abdomen part and / or the back part, in the absorbent article in which a plurality of waist peripheral elastic members are arranged at predetermined intervals, the waist peripheral elastic member is In the portion where the absorber is present, elasticity is not developed, and outside of both side edges of the absorber, the elastic body is fixed to the constituent material of the absorbent article by the first fixing means. The waist-surrounding-portion elastic member is configured to have a second fixing means near the boundary between a portion not exhibiting elastic elasticity and a portion exhibiting elastic elasticity. By providing an absorbent article fixed to It is those that have achieved the serial purpose.
【０００７】[0007]
【発明の実施の形態】以下、本発明をその好ましい実施
形態に基づいて説明する。本発明の吸収性物品の第１実
施形態である使い捨ておむつ１は、パンツ型の使い捨て
おむつであり、図１及び２に示すように、液透過性の表
面シート２、液不透過性の裏面シート３及び両シート
２，３間に介在された液保持性の吸収体４を備え、着用
者の腹側に配される腹側部Ａと背側に配される背側部Ｂ
とその間に位置する股下部Ｃとを有し、腹側部Ａの両側
縁Ａ１，Ａ２と背側部Ｂの両側縁Ｂ１，Ｂ２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
手段により接合されて、一対のレッグ開口部７、及びウ
エスト開口部８が形成されている。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on preferred embodiments. A disposable diaper 1 according to a first embodiment of the absorbent article of the present invention is a pants-type disposable diaper, and as shown in FIGS. 1 and 2, a liquid-permeable top sheet 2 and a liquid-impermeable back sheet. 3 and a liquid-absorbent absorber 4 interposed between the two sheets 2 and 3, the abdominal part A arranged on the abdominal side of the wearer and the dorsal part B arranged on the dorsal side
And both sides A1, A2 of the abdominal part A and both sides B1, B2 of the dorsal part B are formed by a known seal such as a heat seal, a high frequency seal, and an ultrasonic seal. A pair of leg openings 7 and a waist opening 8 are formed by joining by joining means.
【０００８】使い捨ておむつ１は、表面シート２、裏面
シート３及び吸収体４を具備する吸収性本体１０と、該
吸収性本体１０の外側に位置して該吸収性本体１０を接
合固定している外層体５とからなる。The disposable diaper 1 has an absorbent body 10 provided with a top sheet 2, a back sheet 3 and an absorbent body 4, and is fixedly joined to the absorbent body 10 located outside the absorbent body 10. And an outer layer body 5.
【０００９】吸収性本体１０は、縦長矩形状をなし、そ
の長手方向を、使い捨ておむつの長手方向、即ちおむつ
１を平面状に展開した状態における腹側部Ａと背側部Ｂ
とを結ぶ方向に一致させて、外層体５の中央部に公知の
接合手段により接合されている。吸収体４は、長手方向
中央部の括れた砂時計状をなし、表面シート２及び裏面
シート３間に挟持固定されている。吸収性本体１０の長
手方向左右両側部には、吸収性本体１０の幅方向内方側
に自由端を有し外方側に固定端を有する立体ガード６が
設けられている。各立体ガード６には、複数本の立体ガ
ード弾性部材（一本のみ図示）６１が伸縮自在に固定さ
れており、これにより立体ガード６が起立し、吸収性本
体１０の幅方向への液の流出が阻止される。The absorbent main body 10 has a vertically long rectangular shape, and its longitudinal direction is the longitudinal direction of the disposable diaper, that is, the abdominal part A and the back part B in a state where the diaper 1 is flatly developed.
And is joined to the central portion of the outer layer body 5 by a known joining means. The absorber 4 has a conical hourglass shape at the center in the longitudinal direction, and is sandwiched and fixed between the top sheet 2 and the back sheet 3. On both left and right sides in the longitudinal direction of the absorbent main body 10, three-dimensional guards 6 having free ends on the inner side in the width direction of the absorbent main body 10 and fixed ends on the outer side are provided. A plurality of three-dimensional guard elastic members (only one is shown) 61 are fixed to each three-dimensional guard 6 so as to be extendable and contractible, whereby the three-dimensional guard 6 stands up, and the liquid in the width direction of the absorbent main body 10 flows. Outflow is prevented.
【００１０】ウエスト開口部８には、その開口縁部に沿
ってウエストギャザー形成用のウエスト弾性部材８１が
伸縮自在に配設されている。詳細には、外層体５におけ
る前後端部に、それぞれの端縁に沿って、複数本のウエ
スト弾性部材がその幅方向に亘って配されており、これ
らのウエスト弾性部材８１により、ウエスト開口部８
に、その周縁部全周に亘って実質的に連続した環状のウ
エストギャザーが形成されている。In the waist opening 8, a waist elastic member 81 for forming waist gathers is provided so as to extend and contract along the opening edge. In detail, a plurality of waist elastic members are arranged along the respective edges at the front and rear ends of the outer layer body 5 in the width direction thereof. 8
A substantially continuous annular waist gather is formed over the entire periphery of the waist gather.
【００１１】本実施形態の使い捨ておむつ１において
は、腹側部Ａ及び背側部Ｂそれぞれにおける胴周囲部Ｄ
に、おむつ１の幅方向に、複数の胴周囲部弾性部材９が
所定間隔で配されている。胴周囲部Ｄとは、ウエスト弾
性部材８１が配された位置より下方で且つ股下部（両側
部にレッグ開口形成用の凹欠部を有する部分）Ｃよりも
上方に位置する部分である。各胴周囲部弾性部材９は、
外層体５を構成する二枚のシート材５１，５２間に配さ
れている。In the disposable diaper 1 of the present embodiment, the waist peripheral portion D at the abdominal portion A and the back portion B, respectively.
Further, a plurality of waist peripheral elastic members 9 are arranged at predetermined intervals in the width direction of the diaper 1. The torso peripheral portion D is a portion located below the position where the waist elastic member 81 is arranged and above the crotch portion (portion having a concave notch for forming a leg opening on both side portions) C. Each trunk peripheral elastic member 9
It is arranged between two sheet materials 51 and 52 constituting the outer layer body 5.
【００１２】そして、各胴周囲部弾性部材９は、吸収体
４が存在する部位において弾性伸縮性を発現しないよう
になされ、該吸収体４の両側縁４１，４１の外方におい
ては、第１固定手段としての接着剤Ｇにより、吸収性物
品の構成材としての外層体５に伸張状態で固定されて弾
性伸縮性を発現するようになされている。即ち、胴周囲
部弾性部材９は、それぞれ、左右に分断されており、吸
収体４が存在する部位（吸収体４と重ねて配置される部
位）においては、胴周囲部弾性部材９が存在しないか、
又は存在していても外層体５に固定されずに弾性伸縮性
を発現しない。他方、吸収体４の両側縁４１，４１の外
方においては、胴周囲部弾性部材を有する従来のおむつ
と同様に、おむつの構成材に固定され、弾性収縮性を発
現する。Each of the waist peripheral elastic members 9 is designed not to exhibit elastic elasticity at the portion where the absorber 4 is present, and the first elastic members 9 are located outside the side edges 41 of the absorber 4. The adhesive G as a fixing means is fixed in an extended state to the outer layer body 5 as a constituent material of the absorbent article so as to exhibit elastic stretchability. That is, the waist-peripheral elastic member 9 is divided into right and left, and the waist-peripheral elastic member 9 does not exist in a portion where the absorber 4 exists (a portion arranged to overlap the absorber 4). Or
Or, even if it exists, it is not fixed to the outer layer body 5 and does not exhibit elastic elasticity. On the other hand, outside the both side edges 41, 41 of the absorber 4, like the conventional diaper having the waist peripheral elastic member, it is fixed to the constituent material of the diaper and exhibits elastic contractility.
【００１３】胴周囲部弾性部材９は、吸収体４と重なる
部位に、外層体５に固定されていない部分を有してお
り、その外層体５に固定されていない部分の中央部にお
いて切断され、左右に分断されている。尚、弾性収縮性
を発現する部位における胴周囲部弾性部材９は、外層体
５を構成する二枚のシート材５１，５２の一方又は両方
に接着固定されている。The waist peripheral elastic member 9 has a portion that is not fixed to the outer layer body 5 at a portion overlapping with the absorber 4, and is cut at the center of the portion that is not fixed to the outer layer body 5. , Divided into left and right. In addition, the waist-surrounding-portion elastic member 9 at the part where the elastic contraction is exhibited is bonded and fixed to one or both of the two sheet members 51 and 52 constituting the outer layer body 5.
【００１４】本明細書において、弾性伸縮性を発現しな
いとは、弾性部材が配されているが、その弾性部材の伸
長状態が解除されていたり、熱処理等により弾性部材の
弾性が消失していること等によって弾性伸縮性を発現し
ない場合と、該部分に弾性部材が存在しない場合の両者
を包含する意味である。また、弾性部材が分断されてい
るとは、弾性部材の弾性伸縮性を発現する部分が、弾性
伸縮性を発現しない部分を介して、分割されていること
を意味し、弾性部材の切断により分断されていることが
好ましい。In the present specification, the expression "elasticity is not exhibited" means that the elastic member is disposed, but the elastic member has been released from the extended state, or the elasticity of the elastic member has disappeared due to heat treatment or the like. This includes both cases where elastic elasticity is not exhibited and cases where an elastic member does not exist in the portion. Further, that the elastic member is divided means that a portion where the elastic member exhibits elastic elasticity is divided through a portion where the elastic member does not exhibit elastic elasticity, and is divided by cutting the elastic member. It is preferred that
【００１５】本実施形態の使い捨ておむつ１における胴
周囲部弾性部材９は、吸収体４が存在する部位に配され
て弾性伸縮性を発現しない部分と、吸収体４の左右両側
縁の外方に配されて弾性伸縮性を発現する部分との境界
部付近が、第２固定手段により、第１固定手段としての
接着剤Ｇによる固定部位よりも強固に吸収性物品の構成
材としての外層体５に固定されている。本実施形態にお
ける第２固定手段は、ヒートシールであり、図１及び２
には、第２固定手段としてのヒートシールを施した箇所
を符号Ｓ１で示してある。図示の如く、本実施形態の使
い捨ておむつにおいては、第１固定手段としての接着剤
Ｇにより胴周囲部弾性部材９が二枚のシート５１，５２
の一方又は双方に接着されている接着領域Ｐ１と、接着
領域Ｐ１間に位置し胴周囲部弾性部材９が二枚のシート
５１，５２の何れにも接着されていない非接着領域Ｐ２
とが形成されており、胴周囲部弾性部材９は、接着領域
Ｐ１と非接着領域Ｐ２との境界部近傍、より詳細には、
接着領域Ｐ１における、両領域の境界線（図２中に一点
鎖線Ｐで示す）寄りの位置において、ヒートシールによ
り、おむつ１の構成材としての外層体５に固定されてい
る。The elastic member 9 around the waist of the disposable diaper 1 of the present embodiment is provided at a portion where the absorber 4 is present and does not exhibit elastic elasticity, and at a portion outside the left and right side edges of the absorber 4. The outer layer body 5 as a component of the absorbent article is more strongly provided by the second fixing means in the vicinity of the boundary with the portion which is arranged and exhibits elasticity and elasticity than the fixing part by the adhesive G as the first fixing means. It is fixed to. The second fixing means in the present embodiment is a heat seal, as shown in FIGS.
In FIG. 2, a portion to which heat sealing as a second fixing means is applied is indicated by reference numeral S1. As shown in the figure, in the disposable diaper of the present embodiment, the elastic member 9 around the trunk is made of two sheets 51 and 52 by the adhesive G as the first fixing means.
And a non-adhesive region P2 which is located between the adhesive regions P1 and in which the waist elastic member 9 is not adhered to any of the two sheets 51 and 52.
Is formed, and the waist-surrounding-portion elastic member 9 is provided near the boundary between the bonding region P1 and the non-bonding region P2, more specifically,
At a position near the boundary between the two regions (indicated by a dashed line P in FIG. 2) in the adhesive region P1, the outer region 5 as a component of the diaper 1 is fixed by heat sealing.
【００１６】各胴周囲部弾性部材９における、第２固定
手段としてのヒートシールにより外層体５に固定された
固定部位は、第１固定手段としての接着剤のみにより固
定された固定部位よりも強固に吸収性物品の構成材に固
定されている。In each of the elastic members 9 around the torso, the fixing portion fixed to the outer layer body 5 by heat sealing as the second fixing means is stronger than the fixing portion fixed only by the adhesive as the first fixing means. Is fixed to the constituent material of the absorbent article.
【００１７】尚、第２固定手段としてのヒートシールに
よる固定は、両シート材５１，５２同士が融着して胴周
囲部弾性部材が両シート材間に挟持固定されるか、又は
弾性部材と片側又は両側のシート材とが融着することに
より達成されている。The fixing by heat sealing as the second fixing means is performed by fusing the two sheet materials 51 and 52 to each other so that the elastic member around the trunk is sandwiched and fixed between the two sheet materials, or This is achieved by fusing one or both sheet materials together.
【００１８】本発明における第１固定手段は、胴周囲部
弾性部材を、弾性伸縮性を発現し得る状態で吸収性物品
の構成材（好ましくはシート材）に固定する手段であ
り、第１固定手段としては、接着剤、ヒートシール（超
音波シールを含む）等が挙げられ、本実施形態における
ように接着剤であることが好ましい。第１固定手段とし
ての接着剤としては、各種公知の接着剤を用いることが
できるが、ホットメルト接着剤が好ましく、特に、ＳＥ
ＢＳ系、ＳＢＳ系、ＳＩＳ系のホットメルト接着剤が好
ましい。また、接着剤の塗布パターンは、弾性部材に直
接塗布するものが好ましいが、ストライプ、スパイラ
ル、ベタ、ドット状等、特に制限されない。The first fixing means in the present invention is a means for fixing the waist peripheral elastic member to a constituent material (preferably a sheet material) of the absorbent article in a state capable of exhibiting elastic elasticity. Examples of the means include an adhesive, a heat seal (including an ultrasonic seal), and the like, and an adhesive is preferable as in the present embodiment. As the adhesive as the first fixing means, various known adhesives can be used, and a hot melt adhesive is preferable.
BS-based, SBS-based, and SIS-based hot melt adhesives are preferred. Further, the application pattern of the adhesive is preferably applied directly to the elastic member, but is not particularly limited to stripes, spirals, solids, dots, and the like.
【００１９】また、第２固定手段は、胴周囲部弾性部材
を、第１固定手段による固定部位、即ち第１固定手段の
みにより固定された部位よりも強固に、吸収性物品の構
成材に固定するための手段であり、通常、第１固定手段
とは異なる手段、又は第１固定手段と同じ手段である
が、第１固定手段よりも強い固定強度が得られるように
施されたものである。The second fixing means fixes the waist elastic member to the component of the absorbent article more firmly than the part fixed by the first fixing means, that is, the part fixed only by the first fixing means. This is a means different from the first fixing means or the same means as the first fixing means, but is applied so as to obtain a fixing strength stronger than that of the first fixing means. .
【００２０】第１固定手段よりも強い固定強度が得られ
るように施された固定手段としては、例えば第１固定手
段として用いた接着剤よりも接着力の強い接着剤等、第
２固定手段自体の物性ないし特性により第１固定手段よ
りも強い固定強度が得られるものの他、例えば第１固定
手段としての接着剤による固定部位に追加的に重ねて施
された接着剤や第１固定手段としての接着剤よりも高坪
量に塗布された接着剤等、第１固定手段とは異なる態様
で施されたことにより第１固定手段よりも強い固定強度
が得られるものも含まれる。第２固定手段は、通常、第
１固定手段を施す工程とは異なる工程（好ましくは第１
固定手段の工程よりも後の工程）で施される。The fixing means provided so as to obtain a fixing strength higher than that of the first fixing means includes, for example, an adhesive having a stronger adhesive force than the adhesive used as the first fixing means, such as the second fixing means itself. In addition to a material having a higher fixing strength than the first fixing means due to the physical properties or characteristics of the first fixing means, for example, an adhesive additionally applied to a fixing part by the adhesive as the first fixing means or an adhesive as the first fixing means Also included are adhesives applied to a basis weight higher than that of the adhesive, and adhesives applied in a manner different from that of the first fixing means so as to obtain a stronger fixing strength than the first fixing means. Usually, the second fixing means is different from the step of applying the first fixing means (preferably the first fixing means).
(Step after the step of the fixing means).
【００２１】第２固定手段としては、第１固定手段と同
様のものを用いることができる。第１及び第２固定手段
の好ましい組み合わせとしては、（１）第１固定手段が
接着剤で、第２固定手段がヒートシール（超音波シール
を含む）の組み合わせや、（２）第１固定手段及び第２
固定手段が共に接着剤で、第２固定手段が第１固定手段
よりも強い接合強度が得られるように施されたもの等を
挙げることができる。第２固定手段として、ヒートシー
ルを用いる場合は、材料コストがかからないという利点
があり、接着剤による固定手段を用いる場合は、塗布量
の調整により、より効果のある条件出しがし易いという
利点がある。As the second fixing means, the same one as the first fixing means can be used. Preferred combinations of the first and second fixing means include (1) a combination of the first fixing means with an adhesive and the second fixing means with a heat seal (including an ultrasonic seal), and (2) a first fixing means. And the second
The fixing means may be an adhesive, and the second fixing means may be provided so as to obtain a stronger bonding strength than the first fixing means. When a heat seal is used as the second fixing means, there is an advantage that a material cost is not required. When a fixing means using an adhesive is used, there is an advantage that it is easy to determine more effective conditions by adjusting the application amount. is there.
【００２２】尚、第１固定手段が接着剤で、第２固定手
段がヒートシール（超音波シールを含む）の場合、外層
体５を構成する２枚のシート材５１，５２の何れか一方
に第１固定手段としての接着剤を塗布し、次いで胴周囲
部弾性部材９を両シート材５１，５２間に挟持させた
後、両シート５１，５２の上下面間をシールすることが
好ましい。When the first fixing means is an adhesive and the second fixing means is a heat seal (including an ultrasonic seal), either one of the two sheets 51, 52 constituting the outer layer body 5 is applied. It is preferable that an adhesive as a first fixing means is applied, and after the elastic member 9 around the trunk is sandwiched between the sheet materials 51 and 52, the upper and lower surfaces of the sheets 51 and 52 are sealed.
【００２３】また、第１固定手段及び第２固定手段が何
れも接着剤である場合、外層体５を構成する２枚のシー
ト材５１，５２の一方のシート材に、第１固定手段とし
ての接着剤及び第２固定手段としての接着剤の両方を塗
布した後、それらの接着剤を塗布した該シート材上に胴
周囲部弾性部材９を配し、次いで、該胴周囲部弾性部材
９上に他方のシート材を配する方法、又は２枚のシート
材５１，５２の一方のシート材に第１固定手段としての
接着剤を塗布した後、胴周囲部弾性部材９を配し、次い
で胴周囲部弾性部材９上又は他方のシート材に第２固定
手段としての接着剤を塗布し、他方の該シート材を、胴
周囲部弾性部材９上に配する方法が好ましい。When both the first fixing means and the second fixing means are adhesives, one of the two sheet materials 51 and 52 constituting the outer layer body 5 is attached to one of the sheet materials as the first fixing means. After applying both the adhesive and the adhesive as the second fixing means, the waist peripheral elastic member 9 is arranged on the sheet material coated with the adhesive, and then the waist peripheral elastic member 9 After applying an adhesive as a first fixing means to one of the two sheet materials 51 and 52, an elastic member 9 around the body is disposed, and then the body It is preferable to apply an adhesive as the second fixing means on the peripheral elastic member 9 or the other sheet material, and to arrange the other sheet material on the trunk peripheral elastic member 9.
【００２４】尚、第２固定手段としての接着剤を塗布す
る箇所は、本実施形態におけるヒートシールを施した箇
所と同じであることが好ましい。また、第２固定手段と
しての接着剤を、選択された特定の部位に適用するに
は、各種公知の塗布装置と位置決め装置を用いれば良
い。It is preferable that the location where the adhesive as the second fixing means is applied is the same as the location where the heat seal is applied in the present embodiment. Further, in order to apply the adhesive as the second fixing means to the selected specific site, various known application devices and positioning devices may be used.
【００２５】本実施形態の使い捨ておむつ１において
は、着用者の脚廻りに配される一対のレッグ部７０，７
０に、一方のレッグ部７０から股下部Ｃを横断して他方
のレッグ部７０に亘るように、レッグギャザー形成用の
レッグ部弾性部材７１が配されており、該レッグ部弾性
部材７１は、吸収体４が存在する部位においては、弾性
伸縮性を発現しないようになされ、吸収体４の両側縁４
１，４１の外方においては、吸収性物品の構成材として
の外層体５に固定されて弾性伸縮性を発現するようにな
されている。In the disposable diaper 1 of the present embodiment, a pair of leg portions 70, 7 arranged around the legs of the wearer.
0, a leg elastic member 71 for forming leg gathers is disposed so as to extend from one leg 70 to the other leg 70 across the crotch C, and the leg elastic member 71 is In a portion where the absorber 4 is present, elasticity and elasticity are not developed, and both side edges 4 of the absorber 4
Outside of 41, 41, it is fixed to the outer layer body 5 as a constituent material of the absorbent article so as to exhibit elastic stretchability.
【００２６】本使い捨ておむつ１は、レッグ部弾性部材
７１として、両端部が腹側部Ａに位置する第１弾性部材
７１ａと、両端部が背側部Ｂに位置する第２弾性部材７
１ｂとを有している。第１及び第２弾性部材７１ａ，７
１ｂそれぞれの両端部は、腹側部Ａ又は背側部Ｂの両側
縁部に位置しており、おむつ１の腹側部Ａの両側縁Ａ
１，Ａ２と背側部Ｂの両側縁Ｂ１，Ｂ２とが互いに接合
された状態においては、図１に示すように、おむつ１の
レッグ開口部７，７の周縁部に、その全周に亘って実質
的に連続した環状のレッグギャザーが形成されている。The disposable diaper 1 has a leg elastic member 71, a first elastic member 71a having both ends located on the abdominal side A, and a second elastic member 7 having both ends located on the back side B.
1b. First and second elastic members 71a, 7
1b are located at the both side edges of the abdominal portion A or the back side portion B, and the both side edges A of the abdominal portion A of the diaper 1.
In a state where the side edges B1, B2 of the back side portion B are joined to each other, as shown in FIG. 1, the diaper 1 is provided on the periphery of the leg openings 7, 7 over the entire periphery thereof. And a substantially continuous annular leg gather is formed.
【００２７】また、吸収体４の両側縁４１，４１の外方
における両弾性部材７１ａ，７１ｂは、第１固定手段と
しての接着剤Ｇにより吸収性物品の構成材としての外層
体５に固定されており、両弾性部材７１ａ，７１ｂは、
弾性伸縮性を発現しない部分と弾性伸縮性を発現する部
分との境界部付近において、第２固定手段としてのヒー
トシール（図２中、Ｓ２がヒートシールを施した部分で
ある）により、第１固定手段による固定部位よりも強固
に吸収性物品の構成材としての外層体５に固定されてい
る。The two elastic members 71a, 71b outside the side edges 41, 41 of the absorber 4 are fixed to the outer layer body 5 as a component of the absorbent article by an adhesive G as a first fixing means. The two elastic members 71a and 71b
In the vicinity of the boundary between the portion not exhibiting elastic elasticity and the portion exhibiting elastic elasticity, heat sealing as a second fixing means (in FIG. 2, S2 is a portion subjected to heat sealing) is used as the first fixing means. It is more firmly fixed to the outer layer body 5 as a constituent material of the absorbent article than the fixing part by the fixing means.
【００２８】レッグ部弾性部材７１を固定するための第
１及び第２固定手段としては、それぞれ胴周囲部弾性部
材９を固定するための第１及び第２固定手段と同様の手
段を用いることができる。両弾性部材７１ａ，７１ｂ
は、外層体５に固定されている部分と固定されていない
部分を有し、外層体５に固定されていない部分において
切断されている。レッグ部弾性部材７１は、外層体５を
構成するシート材５１，５２間に揺動させて導入されて
いる。レッグ部弾性部材７１の固定方法について特に説
明しない点については、好ましい態様を含めて胴周囲部
弾性部材９と同様であり、胴周囲部弾性部材９に関して
上述した説明が適宜適用される。As the first and second fixing means for fixing the leg elastic member 71, the same means as the first and second fixing means for fixing the waist peripheral elastic member 9, respectively, may be used. it can. Both elastic members 71a, 71b
Has a portion fixed to the outer layer body 5 and a portion not fixed, and is cut at a portion not fixed to the outer layer body 5. The leg elastic member 71 is swingably introduced between the sheet members 51 and 52 constituting the outer layer body 5. About the point which does not specifically describe about the fixing method of the leg part elastic member 71, it is the same as that of the torso peripheral part elastic member 9 including a preferable aspect, and the above-mentioned description regarding the torso peripheral part elastic member 9 is applied suitably.
【００２９】本実施形態の使い捨ておむつ１の構成部材
の形成材料について説明すると、表面シート２、裏面シ
ート３、吸収体４、立体ガード６形成用のシート材及び
弾性部材６１、ウエスト弾性部材８１の形成材料として
は、従来、使い捨ておむつ等に用いられるものを特に制
限なく用いることができる。The material for forming the constituent members of the disposable diaper 1 according to the present embodiment will be described. The top sheet 2, the back sheet 3, the absorber 4, the sheet material for forming the three-dimensional guard 6 and the elastic member 61, the waist elastic member 81 As the forming material, those conventionally used for disposable diapers and the like can be used without particular limitation.
【００３０】胴周囲部弾性部材９及びレッグ部弾性部材
７１の形成材料としては、通常公知の各種の弾性材料を
用いることができ、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（登録商標）
等の合成ゴム、天然ゴム、ＥＶＡ、伸縮性ポリオレフィ
ン、ウレタン等の伸縮性の素材を広く用いることがで
き、形態としては、断面が矩形、正方形、円形、多角形
状の糸状のものやテープ状のものが好ましい。また、熱
によって可塑化する性質の弾性部材も好適に用いられ
る。As the material for forming the elastic member 9 around the trunk and the elastic member 71 at the leg, various known elastic materials can be used. Examples of the material include styrene-butadiene, butadiene, isoprene, and neoprene (registered trademark). )
A wide variety of stretchable materials such as synthetic rubber, natural rubber, EVA, stretchable polyolefin, urethane, etc. can be used, and the form is a rectangular, square, circular, polygonal thread or tape. Are preferred. An elastic member having the property of being plasticized by heat is also preferably used.
【００３１】胴周囲部弾性部材９及び／又はレッグ部弾
性部材７１を、おむつを構成する二枚のシート材間に固
定する場合における二枚のシート材の形性材料は、両シ
ート材共に、熱融着性繊維を含むものであることが好ま
しく、特に、芯鞘型の接着性複合繊維（例えばＰＥＴ芯
ＰＥ鞘の複合繊維）を含む不織布や、サイドバイサイド
型の接着性複合繊維を含む不織布、高融点と低融点の合
成繊維を含むバイコンポーネントの不織布が、高いヒー
トシール性により高い固定強度が得られるので好まし
い。特に、胴周囲部弾性部材９及び／又はレッグ部弾性
部材７１を、外層体を構成する二枚のシート材５１，５
２間に固定するの形成材料としては、好ましくは液抵抗
性、液不透過性で透湿性、通気性を有し、肌着に近い感
触の高可撓性シートで、具体的には織布、不織布、フィ
ルム、透湿フィルム、開孔フィルムや、これらの複合材
等が好ましい。In the case where the waist peripheral elastic member 9 and / or the leg elastic member 71 are fixed between the two sheets constituting the diaper, the shape materials of the two sheets are as follows. It is preferable to use a non-woven fabric containing a core-sheath type adhesive conjugate fiber (for example, a PET core PE sheath conjugate fiber), a non-woven fabric containing a side-by-side type adhesive conjugate fiber, and a high melting point. And a bicomponent nonwoven fabric containing low-melting-point synthetic fibers are preferred because high heat-sealing properties provide high fixing strength. In particular, the trunk periphery elastic member 9 and / or the leg elastic member 71 are connected to the two sheets 51, 5 constituting the outer layer body.
The material to be fixed between the two is preferably a liquid-resistant, liquid-impermeable, moisture-permeable, air-permeable, highly flexible sheet having a feel close to underwear, specifically a woven fabric, Nonwoven fabrics, films, moisture-permeable films, apertured films, and composites thereof are preferred.
【００３２】本実施形態の使い捨ておむつ１における外
層体５の製造方法の一例について、図３を参照して説明
する。先ず、外層体を構成する二枚のシート材５１，５
２の内の少なくとも一方のシート材５１に、第１固定手
段としての接着剤を所定のパターンで塗工する（塗工工
程）。具体的には、図３（ａ）に示すように、シート材
５１の流れ方向Ｘに、所定の間隔で間欠的に接着剤を塗
布する。これにより、シート材５１に接着剤の塗布部Ｈ
１と非塗布部Ｈ２とがシート材の流れ方向Ｘに亘って交
互に形成される。An example of a method for manufacturing the outer layer body 5 in the disposable diaper 1 of the present embodiment will be described with reference to FIG. First, two sheets 51, 5 constituting the outer layer body
An adhesive as a first fixing means is applied to at least one of the sheet members 51 in a predetermined pattern (application step). Specifically, as shown in FIG. 3A, the adhesive is applied intermittently at predetermined intervals in the flow direction X of the sheet material 51. As a result, the adhesive H is applied to the sheet material 51.
1 and the non-coating portion H2 are formed alternately in the flow direction X of the sheet material.
【００３３】次いで、胴周囲部弾性部材９並びに第１及
び第２弾性部材７１ａ，７１ｂを、それぞれ接着剤を介
して間欠的に両シート材５１，５２間に固定されるよう
に、伸長状態で導入した後、両シート材５１，５２同士
を貼り合わせる（導入貼り合わせ工程）。尚、両弾性部
材７１ａ，７１ｂは、両連続シートの流れ方向Ｘに直交
する方向Ｙに揺動させながら導入する。図３に示す例に
おいては、これらの弾性部材の導入の直後に、両シート
材５１，５２を互いに貼り合わせている。この導入貼り
合わせ工程において、両シート材５１，５２が接着剤の
塗布部Ｈ１において互いに貼り合わされて接着領域Ｐ１
が形成されると共に、両連続シートが互いに貼り合わさ
れていない非接着領域Ｐ２が形成される。尚、胴周囲部
弾性部材９並びに第１及び第２弾性部材７１ａ，７１ｂ
は、それぞれ接着領域Ｐ１においては、両シート材間に
固定され、非接着領域Ｐ２においては、両シート材間に
固定されない。Next, the waist peripheral elastic member 9 and the first and second elastic members 71a and 71b are extended in an extended state so as to be intermittently fixed between the two sheet materials 51 and 52 via an adhesive. After the introduction, the two sheet materials 51 and 52 are attached to each other (introduction attachment step). The elastic members 71a and 71b are introduced while swinging in a direction Y orthogonal to the flow direction X of the continuous sheets. In the example shown in FIG. 3, immediately after the introduction of these elastic members, the two sheet materials 51 and 52 are bonded to each other. In this introduction bonding process, the two sheet materials 51 and 52 are bonded to each other at the adhesive application portion H1 to form the bonding region P1.
Is formed, and a non-adhesion region P2 where both continuous sheets are not bonded to each other is formed. In addition, the torso peripheral elastic member 9 and the first and second elastic members 71a and 71b
Are fixed between the two sheets in the bonding area P1, and are not fixed between the two sheets in the non-bonding area P2.
【００３４】次いで、図３（ｂ）に示すように、胴周囲
部弾性部材９並びに第１及び第２弾性部材７１ａ，７１
ｂを、両シート材５１，５２に固定されていない部位に
おいて切断し（切断工程）、更に、図３（ｃ）に示すよ
うに、切断された胴周囲部弾性部材９並びに両弾性部材
７１ａ，７１ｂそれぞれにおける所定の部位を、第２固
定手段としてのヒートシールにより、両シート材５１，
５２間に固定する（固定工程）。図３中、Ｓ１で示した
部分が、胴周囲部弾性部材９のヒートシールによる固定
部位であり、Ｓ２で示した部分が、レッグ部弾性部材７
１としての第１及び第２弾性部材７１ａ，７１ｂそれぞ
れにおけるヒートシールによる固定部位である。Next, as shown in FIG. 3 (b), the elastic member 9 around the trunk and the first and second elastic members 71a, 71
b is cut at a portion that is not fixed to the two sheet materials 51 and 52 (cutting step). Further, as shown in FIG. 3C, the cut elastic member 9 around the trunk and the two elastic members 71a and 71a are cut. A predetermined portion in each of the sheet materials 71b is fixed to both sheet materials 51,
It fixes between 52 (fixing process). In FIG. 3, a portion indicated by S1 is a fixing portion of the torso elastic member 9 by heat sealing, and a portion indicated by S2 is a leg elastic member 7.
The first and second elastic members 71a and 71b as the fixing portions 1 are fixed portions by heat sealing.
【００３５】前記切断工程においては、各種公知の切断
手段を用いることができ、例えばピンチカッター、ロー
タリーダイカッター、ヒートシールカッター、超音波カ
ッター、ウォータージェットカッターなどを用いること
ができる。In the cutting step, various known cutting means can be used, for example, a pinch cutter, a rotary die cutter, a heat seal cutter, an ultrasonic cutter, a water jet cutter, or the like.
【００３６】前記固定工程における第２固定手段として
ヒートシールを用いる場合、ヒートシールは、そのシー
ル領域をその全面亘ってシール（ベタシール）しても良
いが、シール領域が硬くなり風合いが悪くなるのを防止
する観点から、所定のパターンで部分的にシールするこ
とが好ましい。ヒートシールは、通常、レッグ部弾性部
材をこれを固定するためのシート材と共に一対のシール
ロール間に挿通して行う。一対のシールロールは、パタ
ーンロール及びバックアップロールであることが好まし
く、何れか一方のロールのみが加熱ロールでも良いし、
両方が加熱ロールでも良い。ロール温度、シール時間、
クリアランス、圧力等の因子を変化させることにより、
材料に最適な加工条件で加工することができる。In the case where a heat seal is used as the second fixing means in the fixing step, the heat seal may be made to seal the entire seal area (solid seal), but the seal area is hardened and the texture is deteriorated. From the viewpoint of preventing the above, it is preferable to partially seal in a predetermined pattern. Heat sealing is usually performed by inserting a leg elastic member together with a sheet material for fixing the leg elastic member between a pair of seal rolls. The pair of seal rolls are preferably a pattern roll and a backup roll, and only one of the rolls may be a heating roll,
Both may be heating rolls. Roll temperature, sealing time,
By changing factors such as clearance and pressure,
Processing can be performed under the optimum processing conditions for the material.
【００３７】このような工程を経て、部分的に弾性化さ
れた積層シート５０が得られる。外層体５は、この積層
シート５０から、レッグ部形成用の余分な部分７２を切
断除去すると共に、該積層シート５０を個々の外層体５
の寸法に切断することにより、得られる。尚、固定工程
は、切断工程の前又は同時に行っても良い。Through these steps, a partially elasticized laminated sheet 50 is obtained. The outer layer body 5 cuts and removes an extra portion 72 for forming a leg portion from the laminated sheet 50 and separates the laminated sheet 50 into individual outer layer bodies 5.
Is obtained by cutting to the dimensions of The fixing step may be performed before or simultaneously with the cutting step.
【００３８】本実施形態の使い捨ておむつ１は、例え
ば、上述した方法により製造した外層体５に、常法に従
って製造した吸収性本体１０を公知の接合手段により接
合固定し、更に腹側部Ａの両側縁Ａ１，Ａ２と背側部Ｂ
の両側縁Ｂ１，Ｂ２とを接合することにより得られる。In the disposable diaper 1 of the present embodiment, for example, the absorbent body 10 manufactured according to a conventional method is joined and fixed to the outer layer body 5 manufactured by the above-described method by known joining means. Side edges A1, A2 and back side B
By joining the two side edges B1 and B2.
【００３９】本実施形態の使い捨ておむつ１は、通常の
パンツ型の使い捨ておむつと同様にして使用することが
できる。そして、本実施形態の使い捨ておむつ１によれ
ば、胴周囲部Ｄに胴周囲部弾性部材９が配されているた
め、着用者の胴廻りにおけるフィット性が向上してお
り、漏れ防止性能にも優れている。しかも、胴周囲部弾
性部材９が、吸収体４が存在する部位において弾性伸縮
性を発現しないようになされているため、着用中におけ
る吸収体４の縮みやヨレが効果的に防止され、吸収体４
が本来有する吸収性能を充分に発揮させることができ
る。そのため、おむつ１に充分な吸収性能を維持しなが
ら、吸収体４の小型化、使用材料の削減等を図ることも
可能である。また、吸収体がひだ寄せされ難いので、す
っきりした外観であり、印刷されたデザインも見易い。The disposable diaper 1 of this embodiment can be used in the same manner as a normal pants-type disposable diaper. In addition, according to the disposable diaper 1 of the present embodiment, since the waist peripheral portion elastic member 9 is disposed in the waist peripheral portion D, the fit of the wearer around the waist is improved, and the leakage prevention performance is also excellent. ing. In addition, since the waist peripheral elastic member 9 does not exhibit elastic elasticity at the portion where the absorber 4 is present, shrinkage or twisting of the absorber 4 during wearing is effectively prevented, and 4
Can sufficiently exhibit the inherent absorption performance. For this reason, it is possible to reduce the size of the absorber 4 and reduce the materials used while maintaining sufficient absorption performance for the diaper 1. Also, since the absorber is not easily shirred, it has a neat appearance and the printed design is easy to see.
【００４０】また、使い捨ておむつ１においては、胴周
囲部弾性部材の所定箇所が第２固定手段により固定され
ているため、胴周囲部弾性部材として、伸長応力が大き
い弾性部材や、タルクが表面に付着している天然ゴム等
の接着性の悪い弾性部材を用いた場合においても、ゴム
抜けが生じない。従って、胴回りに適正な締め付け力が
得られるように、胴周囲部弾性部材の伸長応力及びその
配設伸張率を適宜に決定することができ、効率的且つ経
済的に、フィット性や吸収性能、漏れ防止性能の向上を
図ることができる。また、本実施形態の使い捨ておむつ
１においては、第１固定手段のみにより胴周囲部弾性部
材を固定する場合と異なり、多量の接着剤を使用する必
要がないため、多量の接着剤による柔軟性の低下や肌へ
の悪影響、べたつきによる不快感等を生じる恐れがな
い。In the disposable diaper 1, since a predetermined portion of the waist peripheral elastic member is fixed by the second fixing means, an elastic member having a large elongation stress or talc is provided on the surface as the waist peripheral elastic member. Even when an elastic member having poor adhesion, such as natural rubber adhered, is used, the rubber does not come off. Therefore, in order to obtain an appropriate tightening force around the waist, it is possible to appropriately determine the elongation stress of the elastic member around the waist and its disposition elongation ratio, and efficiently and economically, the fit and the absorption performance, The leak prevention performance can be improved. Further, in the disposable diaper 1 of the present embodiment, unlike the case where the elastic member around the waist is fixed only by the first fixing means, it is not necessary to use a large amount of adhesive. There is no danger of causing deterioration, adverse effects on the skin, and discomfort due to stickiness.
【００４１】また、本使い捨ておむつ１においては、レ
ッグ部弾性部材７１が吸収体４が存在する部分におい
て、弾性伸縮性を発現しないようになされているため、
特に股下部におけるフィット性及び吸収性能に優れてい
る。しかも、レッグ部弾性部材７１も胴周囲部弾性部材
９と同様に第１及び第２固定手段により固定されている
ため、一層、効率的且つ経済的に、フィット性や吸収性
能、漏れ防止性能の向上を図ることができる。In the disposable diaper 1, the leg elastic member 71 does not exhibit elastic elasticity in the portion where the absorber 4 is present.
In particular, it has excellent fit and absorption performance in the crotch part. Moreover, since the leg elastic member 71 is also fixed by the first and second fixing means in the same manner as the waist peripheral elastic member 9, the fitting property, the absorbing performance, and the leak preventing performance are more efficiently and economically improved. Improvement can be achieved.
【００４２】以上、本発明の一実施形態について説明し
たが、本発明は上記実施形態に制限されることなく、本
発明の趣旨を逸脱しない範囲において種々変更が可能で
ある。例えば、胴周囲部弾性部材は、腹側部及び背側部
の何れか一方にのみ配されていても良い。また、腹側部
及び背側部に配されている場合であっても、腹側部及び
背側部の何れか一方のみにおいて、胴周囲部弾性部材
が、吸収体４の存在する部位において、弾性伸縮性を発
現しないようになされていても良い。Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention. For example, the waist peripheral elastic member may be provided only on one of the abdominal part and the dorsal part. In addition, even if it is arranged on the abdominal part and the dorsal part, in only one of the abdominal part and the dorsal part, the waist circumference elastic member is located at the part where the absorber 4 exists. You may make it not express elastic elasticity.
【００４３】また、上記実施形態における胴周囲部弾性
部材９は、おむつ１の最外表面を形成するシート材（外
層シート）５１とその内側のシート材（内層シート）５
２との間に配されていたが、これに制限されず、内層シ
ート５２とその内側に配されるシート材との間や外層体
５の構成する他の二枚のシート材間、更に裏面シート３
と外層体５を構成するシート材との間等に配されていて
も良い。The torso elastic member 9 in the above embodiment comprises a sheet material (outer layer sheet) 51 forming the outermost surface of the diaper 1 and a sheet material (inner layer sheet) 5 inside the outermost surface.
2, but is not limited thereto, between the inner layer sheet 52 and the sheet material disposed inside the inner layer sheet 52, between the other two sheet materials constituting the outer layer body 5, and further on the back surface. Sheet 3
And the sheet material constituting the outer layer body 5.
【００４４】また、レッグ部弾性部材７１は、吸収体４
が存在する部位において、弾性伸縮性を発現するように
なされていても良い。Further, the leg elastic member 71 is
May be made to express elasticity and elasticity in a portion where is present.
【００４５】また、胴周囲部弾性部材９における弾性伸
縮性を発現する部分が、吸収体４が存在する部位に多少
重なっていても良い。また、吸収体４の両側縁の外方
に、胴周囲部弾性部材９が弾性伸縮性を発現しない部分
があっても良い。The portion of the elastic member 9 around the trunk which exhibits elasticity may slightly overlap the portion where the absorber 4 exists. Further, outside the both side edges of the absorber 4, there may be a portion where the waist peripheral elastic member 9 does not exhibit elastic elasticity.
【００４６】また、胴周囲部弾性部材９を第２固定手段
により固定する部位は、弾性伸縮性を発現しない部分と
弾性伸縮性を発現する部分との境界線上の他、該境界線
から、弾性伸縮性を発現しない部分側又は弾性伸縮性を
発現する部分側に多少離れた位置であっても良い。The portion where the waist peripheral elastic member 9 is fixed by the second fixing means is not only on the boundary between the portion not exhibiting elasticity and elasticity, but also from the boundary. The position may be slightly away from the part that does not exhibit elasticity or the part that exhibits elastic elasticity.
【００４７】また、胴周囲部弾性部材９が、吸収体４が
存在する部位において、弾性伸縮性を発現しないように
なされている態様としては、胴周囲部弾性部材９が、複
数箇所において切断され、断片化されていても良い。As a mode in which the waist peripheral elastic member 9 does not exhibit elastic elasticity at the portion where the absorber 4 is present, the waist peripheral elastic member 9 is cut at a plurality of positions. , May be fragmented.
【００４８】また、胴周囲部弾性部材９を固定する第１
固定手段とレッグ部弾性部材７１を固定する第１固定手
段とは同一でも異なっていても良く、第２固定手段につ
いても同様である。The first elastic member 9 for fixing the elastic member 9 around the trunk is provided.
The fixing means and the first fixing means for fixing the leg elastic member 71 may be the same or different, and the same applies to the second fixing means.
【００４９】また、胴周囲部弾性部材９及び／又はレッ
グ部弾性部材７１の切断箇所に、これらの弾性部材の切
断により生じた端部を遮蔽する遮蔽シートを設けても良
い。切断により生じた弾性部材の端部は、収縮して非機
能化されており、その切れ端が外側より透けて見えた
り、切断箇所の外層シートがダメージを受け、穴があい
たりする場合がある。その部分に隠蔽シートを設けるこ
とで、見栄えが良くなる。尚、隠蔽シートの形成材料と
しては、肌着に近い感触の高可撓性シートが好ましく、
具体的には織布、不織布、フィルム、透湿フィルム、開
孔フィルム、紙や、これらの複合材等が用いられる。Further, a shielding sheet may be provided at the cut portion of the elastic member 9 around the trunk and / or the elastic member 71 of the leg portion to shield an end portion generated by cutting these elastic members. The end of the elastic member generated by the cutting shrinks and becomes non-functional, and the cut end may be seen through from the outside, or the outer layer sheet at the cut portion may be damaged and a hole may be formed. By providing a concealing sheet in that portion, the appearance is improved. As a material for forming the concealing sheet, a highly flexible sheet having a feeling close to underwear is preferable.
Specifically, a woven fabric, a nonwoven fabric, a film, a moisture permeable film, a perforated film, paper, a composite material thereof, or the like is used.
【００５０】本発明は、パンツ型の使い捨ておむつの
他、一対のファスニングテープが設けられた展開型の使
い捨ておむつ、更には、パンツ型の生理用ナプキン等に
も適用することもできる。The present invention can be applied not only to a pants-type disposable diaper, but also to a deployable disposable diaper provided with a pair of fastening tapes, and further to a pants-type sanitary napkin.
【００５１】[0051]
【発明の効果】本発明の吸収性物品によれば、製品開発
時に、胴回りに適正な締め付け力が得られるように、胴
周囲部弾性部材の伸長応力やその配設伸張率を自由に決
定でき、胴回りの柔軟性の悪化や肌への刺激等の不都合
を伴わずに、フィット性や吸収性能、漏れ防止性能を向
上させることができる。According to the absorbent article of the present invention, at the time of product development, the elongation stress of the elastic member around the torso and the elongation rate thereof can be freely determined so that an appropriate tightening force can be obtained around the waist. In addition, the fit, the absorption performance, and the leakage prevention performance can be improved without inconveniences such as deterioration of waist flexibility and skin irritation.
【図１】図１は、本発明の一実施形態の使い捨ておむつ
を示す斜視図である。FIG. 1 is a perspective view showing a disposable diaper according to one embodiment of the present invention.
【図２】図２は、図１に示す使い捨ておむつを展開状態
を示す分解斜視図である。FIG. 2 is an exploded perspective view showing a deployed state of the disposable diaper shown in FIG.
【図３】図３は、図１に示す使い捨ておむつにおける外
層体の製造工程の一例の概略を示す図である。FIG. 3 is a view schematically showing an example of a manufacturing process of an outer layer body in the disposable diaper shown in FIG.
１ 使い捨ておむつ １０ 吸収性本体 ２ 表面シート ３ 裏面シート ４ 吸収体 ４１ 吸収体の側縁 ５ 外層体 ５１ シート材（外層シート） ５２ シート材（内層シート） ６ 立体ガード ６１ 立体ガード弾性部材 ７ レッグ開口部 ７０ レッグ部 ７１ レッグ部弾性部材 ７１ａ 第１弾性部材 ７１ｂ 第２弾性部材 ８ ウエスト開口部 ８１ ウエスト弾性部材 ９ 胴周囲部弾性部材 Ａ 腹側部 Ｂ 背側部 Ｃ 股下部 DESCRIPTION OF SYMBOLS 1 Disposable diaper 10 Absorbent main body 2 Top sheet 3 Back sheet 4 Absorber 41 Side edge of absorber 5 Outer layer 51 Sheet material (outer layer sheet) 52 Sheet material (inner layer sheet) 6 Solid guard 61 Solid guard elastic member 7 Leg opening Part 70 leg part 71 leg part elastic member 71a first elastic member 71b second elastic member 8 waist opening 81 waist elastic member 9 waist peripheral elastic member A belly side B back side part C inseam
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 3B029 BD09 BD10 BD12 BD13 4C098 AA09 CC01 CC03 CC07 CC10 CC11 CC12 CC15 CE05 CE09 DD22 DD23 DD24 ────────────────────────────────────────────────── ─── Continued on the front page F term (reference) 3B029 BD09 BD10 BD12 BD13 4C098 AA09 CC01 CC03 CC07 CC10 CC11 CC12 CC15 CE05 CE09 DD22 DD23 DD24
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000290745AJP4130057B2 (en) | 2000-09-25 | 2000-09-25 | Absorbent articles |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000290745AJP4130057B2 (en) | 2000-09-25 | 2000-09-25 | Absorbent articles |
| Publication Number | Publication Date |
|---|---|
| JP2002095692Atrue JP2002095692A (en) | 2002-04-02 |
| JP4130057B2 JP4130057B2 (en) | 2008-08-06 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000290745AExpired - Fee RelatedJP4130057B2 (en) | 2000-09-25 | 2000-09-25 | Absorbent articles |
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