JP4190693B2 - Sanitary napkin with gathered flap - Google Patents

Sanitary napkin with gathered flap Download PDF

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Publication number
JP4190693B2
JP4190693B2 JP2000039063A JP2000039063A JP4190693B2 JP 4190693 B2 JP4190693 B2 JP 4190693B2 JP 2000039063 A JP2000039063 A JP 2000039063A JP 2000039063 A JP2000039063 A JP 2000039063A JP 4190693 B2 JP4190693 B2 JP 4190693B2
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Japan
Prior art keywords
absorbent element
flap
sheet
gather flap
line
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JP2001224629A5 (en
JP2001224629A (en
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真弓 吉田
洋 古川
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Daio Paper Corp
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Daio Paper Corp
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Description

【0001】
【発明の属する技術分野】
本発明は、ギャザーフラップを有する生理用ナプキンに関する。
【0002】
【従来の技術】
生理用ナプキンにおいて、体液の横漏れ防止を図ることはきわめて重要である。このために、特公平7−71570号公報には、両側にギャザーフラップを形成し、このギャザーフラップにて体液の横漏れを堰き止めるようにしたものが開示されている。
【0003】
【発明が解決しようとする課題】
しかし、この先行例では、ギャザーフラップの収縮により、吸収体の長手方向に関しては、舟形に変形させるものの、幅方向に関してはほとんど変形力が作用しない。したがって、吸収体の両側部に横漏れ防止機能はなく、専らギャザーフラップのみで体液の横漏れを防止するものである。
【0004】
しかしながら、これではギャザーフラップは肌に接するものの、吸収体が肌と離れることがあり、その結果、体液の吸収性が充分ではない。特にナプキン自体の横ずれを防止するためにウイングを設けた場合、衣類側にナプキンの位置が拘束されるために、その傾向が顕著である。
【0005】
したがって、本発明の主たる課題は、吸収要素の両側部を裏面側から使用面側に持ち上げ、もって、少なくともその両側部を常に体にフィットさせ、横漏れを防止しつつ吸収要素内部への吸収性を高め、仮にその両側部から横漏れを生じた場合には、ギャザーフラップにて最終的に横漏れを防止することとし、かくして二重の横漏れ防止機能を付与することにある。
【0006】
【課題を解決するための手段】
上記課題を解決した本発明は次記のとおりである。
<請求項1記載の発明>
使用面側から体液を受け入れて内部に保持する吸収要素と、
少なくとも長手方向中間において、前記吸収要素の裏面側にあって、かつ前記吸収要素の両側縁より幅方向にそれぞれ延在するギャザーフラップと、
前記ギャザーフラップより裏面側にあって衣類側への体液漏れを防止する漏れ防止シートとを備え、
前記ギャザーフラップは、前記吸収要素の側縁より内方に起立起線と自由起立線を有し、前記起立起線より外方部分は前記漏れ防止シートに対して固定関係にない折り返し領域と、前記自由起立線より外方部分は前記吸収要素に対して固定関係にはない幅方向外方部分を有し、
前記外側弾性伸縮部材及び前記内側弾性伸縮部材により、前記起立起線を境にして前記ギャザーフラップ及び前記吸収要素を使用面側に起立するように構成し、かつ、使用時において前記吸収要素の側縁から自由起立線の部分と前記ギャザーフラップの使用面との間にポケットを形成し、
前記ギャザーフラップを構成するギャザーフラップシートが、前記漏れ防止シート上に重ね合わせ状態で固定され、製品の中央側において前記起立起線を介して折り返され、この折り返し部分が前記漏れ防止シートと非固定とされて前記吸収要素の側縁より外方まで延在し折り返し領域を形成し、次いで、中央側に向かって折り返され前記吸収要素の側縁より内側の前記自由起立線よりも中央側に延在し、前記自由起立線より外方部分は前記吸収要素に対して固定関係にはない幅方向外方部分を形成していることを特徴とする生理用ナプキン。
【0007】
(作用効果)
請求項1に係る発明によって奏される効果は以下のとおりである。
A.吸収要素は使用面側から体液を受け入れて内部に保持するが、裏面側には漏れ防止シートにより透過しない。
B.ギャザーフラップは、吸収要素側縁より外方に延在している部位に外側弾性伸縮部材を有するので、その収縮力により使用面側に起立するようになる。このギャザーフラップが最終的な横漏れ防止用バリヤーカフスを構成する。
C.起立起線より幅方向外方部分が漏れ防止シートと固定関係にないので、ギャザーフラップ及び吸収要素は、漏れ防止シートに拘束されることなく起立する。しかるに、ギャザーフラップおよび吸収要素は、股間部にそって前後方向に湾曲し、かつそれらの両側縁が起立した状態であっても、漏れ防止シートに拘束されない。従って、使用者がどのような動きをしても効果的に横漏れを防止できる。
D.前記起立起線より幅方向外方において、前記吸収要素の裏面に位置する部位にある内側弾性伸縮部材によって、吸収要素の側部は常に体にフィットし、横漏れを防止しつつ吸収要素内部への吸収性を高める。仮に吸収要素の両側部から横漏れを生じた場合にも、前記ギャザーフラップの吸収要素側縁より外方に延在している部位にある外側弾性伸縮部材によって吸収要素の外方に形成されるギャザーフラップによって最終的に横漏れが防止される。
E.内側弾性伸縮部材の位置を、前記吸収要素の裏面に位置する部位、としたことで、吸収要素の側縁とギャザーフラップの側縁とが独立的に起立するようになり、それぞれが独立して肌へフィットし、横漏れ防止効果が高まる。
F.特に弾性伸縮部材を吸収要素自身に配した本発明の場合、弾性伸縮部材の位置を吸収要素の側端縁ではなく、起立起線より幅方向外方における前記吸収要素の裏面部位としたので、吸収要素の側縁が下方から押し上げられるように起立する。しかるに、吸収要素の側端縁は、前記弾性伸縮部材に完全に拘束されず、ある程度の自由度を有するので、装用感に優れる。なお、本発明に言う、吸収要素の裏面に位置する部位とは、吸収要素の一部分であって、かつその裏面側の少なくともその両側縁より1mm以上内方にある部分をいう。
G.ギャザーフラップは疎水または撥水性不織布を用いることが肌の感触を良好にする。他方、漏れ防止シートはポリエチレンなどのプラスチックシートを使用して液漏れを確実に防止するのが望ましいが、プラスチックシートでは肌の感触が悪い。そこで、不織布シートを用いるギャザーフラップシートを漏れ防止シート上に重ね合わせ状態で固定することにより、プラスチックシートによる感触の悪化を改善できる。
H.返し領域における起立起線より幅方向外方部分は重ね合わせるギャザーフラップシートと非固定としている。したがって、漏れ防止シートにウイング部を形成し、そのウイング部を衣類の外面への折り返すとき、その折り返しとは関係させずにギャザーフラップ及び吸収要素を自由に起立させることができる。
I.ギャザーフラップは、吸収要素の側縁より内側位置において自由起立線を有し、この自由起立線より幅方向外方部分は吸収要素と非固定であり、ギャザーフラップシートにより吸収要素の側部を拘束していないため、吸収要素の側部が独立的に起立変形可能となる。それぞれが起立した状態では、吸収要素の側部およびギャザーフラップのいずれかが肌と接触するようになり、横漏れ防止効果が高い。
J.さらに、吸収要素の裏面において、吸収要素の側縁から自由起立線までの部分がギャザーフラップの使用面側との間にポケットとして形成されるので、仮に吸収要素の側縁を体液が越えたとしても、そのポケットに体液が一時的に留まる過程で吸収要素に吸収されるから、ギャザーフラップの起立縁まで達することが少ない。
K.折り返し領域の自由起立線より幅方向外方部分は、吸収要素と非固定であるほか、返し領域における起立起線より幅方向外方部分は重ね合わせるギャザーフラップシートとも非固定としている。したがって、漏れ防止シートにウイング部を形成し、そのウイング 部を衣類の外面へ折り返すとき、その折り返しとは関係させずにギャザーフラップおよび吸収要素の側部を独立して自由に起立させることができる。
【0010】
<請求項記載の発明>
前記漏れ防止シートは、前記ギャザーフラップの両側縁位置より幅方向外方に延在している請求項1記載の生理用ナプキンである。
【0011】
(作用効果)
請求項に係る発明は、上記A〜Kの作用効果に加えさらに次記の効果を奏する。
L.漏れ防止シートは、前記ギャザーフラップの両側縁位置より幅方向外方に延在しているので、仮にギャザーフラップの側縁を越えて体液が外方に漏れたとしても、その延在部分にて体液を止め、ショーツや衣類の汚れを防止できる。
M.さらに、製品の最終工程において、各材料を最終的に積層した段階で、外形を定めるべく両側をカットする必要があるが、ギャザーフラップの両側縁位置に整合して漏れ防止シートをカットすることが困難であるところ、漏れ防止シートをギャザーフラップの両側縁位置より幅方向外方に延在しておき、その延在位置にてカットするようにすることにより、製品化が容易となる。
【0012】
【0013】
【0014】
【0015】
【0016】
<請求項記載の発明>
前記吸収要素は、使用面側に位置し体液を透過させる表面シートと、透過した体液を受け入れて内部に保持する吸収コアとを有し、
前記表面シートは、吸収コアの使用面および両側面を包み、吸収コア裏面側の自由起立線より中央側に延在して巻き込まれ、
前記内側弾性伸縮部材は、前記表面シートと前記吸収コアの裏面側との間に位置している請求項1または2記載の生理用ナプキンである。
【0017】
(作用効果)
請求項に係る発明は、前記A〜Mまでの作用効果に加えてさらに次記の効果を奏する。
N.弾性伸縮部材が、吸収要素の中でも一般的に不織布などで形成される吸収コアではなく、一般にある程度の強度を有する材料で構成される表面シートにあることで、吸収体側部を起立させたさいの吸収コアの型崩れが防止され、従って吸収要素の起立形状が保持されフィット性が持続する。
【0018】
<請求項記載の発明>
前記吸収要素には、少なくとも長手方向中間における両側縁より内側位置において、長手方向に沿って起立助長用エンボスが使用面側から形成され、前記外側及び内側弾性伸縮部材は、その起立助長用エンボスより幅方向の外方において長手方向に延在している請求項1〜のいずれか1項に記載の生理用ナプキンである。
【0019】
(作用効果)
請求項4に係る発明は、前記A〜Nまでの作用効果に加えてさらに次記の効果を奏する。
O.前記吸収要素には、少なくとも長手方向中間における両側縁より内側位置において、長手方向に沿って起立助長用エンボスが使用面側から形成されているので、ギャザーフラップの起立により、吸収要素の両側部が裏面側から使用面側に持ち上げられるとき、起立助長用エンボスに沿って折れるので、吸収要素の両側部が裏面側から使用面側に確実に持ち上げられる。
【0020】
【0021】
【0022】
【発明の実施の形態】
以下本発明の実施の形態を図面を参照しながらさらに詳説する。
<第1の実施の形態>
第1の実施の形態は図1〜図6に示してあり、図1の上側が前である。
本発明の生理用ナプキンは、使用面がわから裏面側にかけて;
使用面側から体液を受け入れて内部に保持する吸収要素10と、
少なくとも長手方向中間において、前記吸収要素10の裏面側にあって、前記吸収要素10の両側縁より幅方向外方にそれぞれ延在し、その延在部分に外側弾性伸縮部材21A,21Aを有し、かつ前記吸収要素の裏面に位置する部位に内側弾性伸縮部材21B,21Bを有するギャザーフラップ20と、
前記吸収要素10から裏面側への体液漏れを防止し、前記吸収要素10の両側縁位置より幅方向外方に延在している、たとえばポリエチレンシートなどからなる漏れ防止シート30と、
を備える。
【0023】
吸収要素10は、使用面側に位置し体液を透過させる、不織布や好適には外面から内面方向には体液を通すが逆戻りを防止する小孔を有するポリエチレンシートを用いた表面シート11と、透過した体液を受け入れて内部に保持する綿状粉砕パルプおよび必要によりさらにその上下面もしくは全面を包む吸収紙を有する吸収コア12とを有している。もちろん、高分子吸収ポリマーを含有させることができる。実施の形態では、表面シート11は、吸収コア12の使用面および両側面を包み、下面の自由起立線40より中央側に延在して巻き込まれている(いわゆる額巻きされている)。
【0024】
ギャザーフラップ20は、好適には疎水性または撥水性などの不織布材料からなり、必要ならば体液不透過性プラスチックシートなども用いることが可能な、体液阻止性を有するシート22からなる。このギャザーフラップ20を形成するギャザーフラップシート22は、漏れ防止シート30の両側部において、その上に重ね合わせ状態でたとえばホットメルト接着剤により固定され(その固定部分を*印にて図示している)、製品の中央側において折り返され、折り線22Bを境にして幅方向外方に向かい、吸収要素10の側縁より外方において再度中央側に向かって折り返されて、少なくとも吸収要素10の側縁より内側の自由起立線40よりも中央側にまで延在している。前記ギャザーフラップシート22の、吸収要素10の側縁より、内側の折り返し端と外側の折り返し端との間の折り返し領域22Cのうち、ギャザーフラップシート22は、吸収要素10の側縁より内側の自由起立線40近傍において吸収要素10とホットメルト接着剤などにより固定されている。このとき、少なくとも、自由起立線40より幅方向外方部分22C2は、吸収要素10と非固定である。さらにギャザーフラップシート22は、その自由起立線40より内側部分22C1において、吸収要素10側の折り重ね部分がホットメルト接着剤などにより接着されて、袋状のギャザーフラップ20を構成している。
【0025】
なお、図示される例では、ギャザーフラップ20は、吸収要素10の側縁より外方において再度中央側に向かって折り返されて袋状となっているが、吸収要素10の側縁より外側において裁断してしまってもよい。
【0026】
さらに、図示のように、前記折り線22Bより幅方向外方に位置する折り返し領域22Cについては、ギャザーフラップシート22の漏れ防止シート30側の折り重ね部分が非固定とされているので、ギャザーフラップ20の折り返し領域22C全体が自由に使用面側に起立する。すなわち、前記折り線22Bは、ギャザーフラップ20の起立起線となる。
【0027】
他方、吸収要素10の少なくとも長手方向中間における、両側縁より内側位置において長手方向に沿って折り用エンボス51,51が使用面側から形成されている。この折り用エンボス51,51は、ナプキンの側外方に円弧中心を有する円弧またはほぼ円弧状曲線としてある。さらに、折り用エンボス51,51前後を繋いで方向に円弧またはほぼ円弧状曲線による繋ぎエンボス52,52が形成されている。これらのエンボス51,51,52,52で閉じられた領域では吸収コア12が中高とされている。したがって、エンボス51,51,52,52領域内において吸収コア12の中高部に集中的に吸収を図る構成とされている。
【0028】
図2はシートホットメルト接着剤などによる相互の固定部と非固定部との関係を示している。前後端部の固定部としては、表面シート11と漏れ防止シート30とが、漏れ防止シート30とギャザーフラップシート22とが、ギャザーフラップシート22の折り返し部分相互が固定されている。前後端部以外の固定部は図3および図4に図示のとおりである。
【0029】
非固定部としては、図3および図4に図示されているほか、図2の実線のハッチング領域Z1が、ギャザーフラップシート22の漏れ防止シート30側の折り重ね部分相互を固定していない領域であり、破線のハッチング領域Z2で示す部分が吸収要素10とギャザーフラップシート22とを固定していない領域である。
【0030】
一方、前記ギャザーフラップ20には、ギャザーフラップ20および吸収要素10を使用面側に湾曲させるとともに、それらの側部を使用面側に起立させる外側弾性伸縮部材21Aおよび内側弾性伸縮部材21Bが設けられている。それらの弾性伸縮部材は、直接肌に接触しないように、図示されるように、袋状とされたギャザーフラップ20の内部にあることが好ましい。前記外側弾性伸縮部材21Aは、前記ギャザーフラップ20の吸収要素10側縁より外方に延在している部位に配され、内側弾性伸縮部材21Bは、前記起立起線22Bより幅方向外方において、前記吸収要素10の裏面に位置する部位、に配されている。本実施の形態において、前記吸収要素10の裏面に位置する部位とは、吸収要素10の裏面側であって、かつ幅方向が吸収要素10の側縁より内方となるギャザーフラップ20の一部分を言う。
【0031】
前記延在部分にある外側弾性伸縮部材21Aの収縮によって、ギャザーフラップ20は、吸収要素10側縁より外方において起立し、最終的に横漏れを防止するバリヤーカフスを形成する。さらに、内側弾性伸縮部材21Bの収縮との相互作用によって、吸収要素10およびギャザーフラップ20を使用面側において前後方向に湾曲させるとともに、吸収要素10の側部を下方から使用面側へと持ち上げて起立させる。このとき内側弾性伸縮部材21Bが、常に吸収要素10の側下部に位置するので、使用者が激しく運動しても、吸収要素10の側部の起立形状が保持される。従って、どのような状態でも体液が吸収要素10の内方へ効果的に誘導され横漏れが防止される。さらに、吸収要素10の起立側部を越えても、その外方にギャザーフラップ20によるバリヤーカフスが形成されているので、横漏れすることがない。
【0032】
ここで、何れの弾性伸縮部材21A,21Bも、糸ゴムのほか、弾性伸縮性発泡体(たとえば発泡ウレタン)などの採用が可能であり、図示されるような、製品の長手方向一方側につき、外側弾性伸縮部材21Aを2本、内側弾性伸縮部材21Bを1本、配した例が好適な例である。
【0033】
一方、弾性伸縮部材21A,21Bとギャザーフラップシート22との接着長さは50〜150mm、特に70〜110mmが望ましい。さらに伸張率が100〜300%の間で、100〜200%が望ましく、特に好ましくは150%である。さらに、この150%の伸長時の応力が10〜50gf/mm2であることが好ましい。このとき、外側弾性伸縮部材21Aの縮しろは、内側弾性伸縮部材21Bの縮しろと同長とするか、または長くすることが好適である。
【0034】
ギャザーフラップ20の吸収要素10の側縁より延在する幅W1は、2〜20mm、特に10mmが望ましい。ポケット幅W2は2〜20mm、ならびに22Cの幅は20〜40mmが望ましい。その長さは50〜120mmが好適である。22C2の幅は10〜30mmが好適である。
【0035】
かかる構成の下で、本発明のナプキンを装着する場合には、漏れ防止シート30の裏面(表面)に設けた粘着剤(図示せず)をショーツ内面に当てて仮止めするとともに、ウイング部31をショーツの外面に巻き込み粘着剤(図示せず)により仮固定する。
【0036】
装着状態を概念的に図5および図6に示した。ナプキンは前後方向に股間部に沿って湾曲する。このとき、外側弾性伸縮部材21A,21Aの収縮力により、ギャザーフラップ20の側部が起立する。このギャザーフラップは、吸収要素10の側縁より幅方向外方に延在した延在部分に弾性伸縮部材21Aを有するので、その収縮力により使用面側に起立するようになる。したがって、ギャザーフラップ20が最終的な横漏れ防止用バリヤーカフスを構成する。加えて、ギャザーフラップ20の起立、および吸収要素10の裏面に位置する内側弾性伸縮部材21Bの収縮によって、吸収要素10の両側部が裏面側から使用面側に持ち上げられる。その結果、少なくともその両側部が常に体にフィットし、横漏れを防止しつつ吸収要素20内部への吸収性を高める。仮にその両側部から横漏れを生じた場合には、ギャザーフラップ20にて最終的に横漏れを防止する。
【0037】
前記ギャザーフラップ20は、吸収要素10の側縁より内側位置において自由起立線40を有し、この自由起立線40より幅方向外方部分は吸収要素10と非固定である。しかるに、ナプキンの装着時において吸収要素10は股間部に沿って前後方向に湾曲する際に、ギャザーフラップ20の構成シート22により吸収要素10の側部を完全に拘束していないため、吸収要素10の側部は吸収要素10の湾曲変形に伴って独立して使用面側へ起立変形し、ギャザーフラップ20も独立して起立変形する。従って、吸収要素10の側部およびギャザーフラップ20のいずれかが肌と接触するようになり、横漏れ防止効果が高い。さらに、吸収要素10の側下部に、内側弾性伸縮部材21Bが位置しているので、吸収要素の側部がヨレたとしても再度起立形状に戻る。
【0038】
さらに、吸収要素10の裏面において、吸収要素10の側縁から自由起立線40までの部分がギャザーフラップ20の使用面との間にポケットPとして形成されるので、仮に吸収要素10の側縁を体液が越えたとしても、そのポケットPに体液が一時的に留まる過程で吸収要素10に吸収されるから、ギャザーフラップ20の起立縁まで達することが少ない。
【0039】
さらに、ギャザーフラップ20の自由起立線40より幅方向外方部分22C2は、吸収要素10と非固定であるほか、ギャザーフラップシート22の漏れ防止シート30側の折り重ね部分22Cが非固定であり、したがって漏れ防止シート30と無関係としてあるので、漏れ防止シート30のたとえばウイング部31の衣類の外面への折り返しとは関係させずに、ギャザーフラップ20および吸収要素10の側部を自由に起立させることができる。
【0040】
参考例1の実施の形態>
上記第1の実施の形態においては、内側弾性伸縮部材21Bは、袋状のギャザーフラップ20内にある。これに対して、図7に示すように、前記内側弾性伸縮部材21Bは、前記起立起線22Bより幅方向外方における前記吸収要素10の裏面部位にあってもよい。本実施の形態において、吸収要素10の裏面に位置する部位とは、吸収要素10の一部分であって、かつその裏面側の少なくともその両側縁より1mm以上内方にある部分をいう。内側弾性伸縮部材21Bは、特に、吸収要素10を構成する表面シート11に接着するのが好適である。
【0041】
このように、ギャザーフラップ20ではなく、吸収要素10自体に内側弾性伸縮部材21Bを設けた場合は、前記吸収要素10の側縁の起立は、ギャザーフラップ20の起立、すなわち外側弾性伸縮部材21Aの収縮に完全に拘束されない。しかるに、吸収要素10の側部は、ある程度独立的に起立し、ギャザーフラップ20の動きに影響されずに、吸収要素10自身の形状を保持することができる。特に、本発明では、吸収要素10の側縁ではなく裏面に位置する部位に内側弾性伸縮部材21Bを配したことで、吸収要素10の側縁は拘束されずに自由に動くため装用感にも優れる。
【0042】
参考例2の実施の形態>
本発明においては、第1および第2の実施の形態において、内側弾性伸縮部材21Bの位置を、自由起立線40の内側部位とすることもできる。第2の実施の形態において、内側弾性伸縮部材21Bの位置を、自由起立線40の内側部位とした例を図8に示す。
【0043】
参考例3の実施の形態>
その他、何れの実施の形態においても、自由起立線を設けずに、ギャザーフラップを吸収要素の側縁まで固定しても、本発明の目的は達成できる。例えば、第2の実施の形態において、自由起立線を設けず、ギャザーフラップを吸収要素の側縁まで固定した例を図9に示す。
【0044】
【発明の効果】
以上のとおり、本発明によれば、吸収要素の両側部を効果的に配置した2箇所の弾性伸縮部材によって裏面側から使用面側に持ち上げ、もって、少なくともその両側部を常に体にフィットさせ、さらにフィットした状態で保持し、横漏れを防止しつつ吸収要素内部への吸収性を高めることができる。そして、仮にその両側部から横漏れを生じた場合には、ギャザーフラップにて最終的に横漏れを防止し、かくして二重の横漏れ防止機能を付与することができる。
【図面の簡単な説明】
【図1】 本発明の生理用ナプキンの使用面側からの平面図である。
【図2】 固定および非固定部分の説明図である。
【図3】 図1の3−3線矢視図である。
【図4】 その要部拡大断面図である。
【図5】 使用状態の要部拡大断面図である。
【図6】 使用状態の斜視図である。
【図7】 参考例1の実施の形態の要部拡大断面図である。
【図8】 参考例2の実施の形態の要部拡大断面図である。
【図9】 参考例3の実施の形態の要部拡大断面図である。
【符号の説明】
10…吸収要素、11…表面シート、12…吸収コア、20…ギャザーフラップ、21A,21B…弾性伸縮部材、22…ギャザーフラップシート、30…漏れ防止シート、31…ウイング部、40…自由起立線、51,52…エンボス。
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a sanitary napkin having a gather flap.
[0002]
[Prior art]
In sanitary napkins, it is extremely important to prevent side leakage of body fluids. For this reason, Japanese Patent Publication No. 7-71570 discloses a gather flap formed on both sides to prevent side leakage of body fluid with the gather flap.
[0003]
[Problems to be solved by the invention]
However, in this prior example, due to the shrinkage of the gather flap, the longitudinal direction of the absorber is deformed into a boat shape, but almost no deformation force acts in the width direction. Accordingly, there is no side leakage prevention function on both sides of the absorbent body, and body fluid side leakage is prevented only by the gather flap.
[0004]
However, in this case, although the gather flap is in contact with the skin, the absorbent body may be separated from the skin, and as a result, the absorbability of body fluid is not sufficient. In particular, when the wing is provided to prevent the lateral displacement of the napkin itself, the tendency is remarkable because the position of the napkin is restrained on the clothing side.
[0005]
Therefore, the main problem of the present invention is to lift both sides of the absorbent element from the back side to the use side, so that at least both sides of the absorbent element are always fitted to the body, preventing side leakage and absorbing inside the absorbent element. If side leakage occurs from both sides, the side flap is finally prevented by a gather flap, and thus a double side leakage prevention function is provided.
[0006]
[Means for Solving the Problems]
The present invention that has solved the above problems is as follows.
<Invention of Claim 1>
An absorbent element that receives body fluid from the use surface side and holds it inside,
A gather flap that is on the back side of the absorbent element and extends in the width direction from both side edges of the absorbent element, at least in the middle in the longitudinal direction;
A leak prevention sheet on the back side from the gather flap to prevent body fluid leakage to the clothing side,
The gather flap has a standing erection line and a free erection line inward from the side edge of the absorbent element, and the outer part of the rising erection line is a folded region that is not in a fixed relationship with the leakage prevention sheet; The outer portion from the free standing line has a width direction outer portion that is not in a fixed relationship with the absorbent element,
The outer elastic stretchable member and the inner elastic stretchable member are configured to stand the gather flap and the absorbent element on the use surface side with respect to the rising line, and in use, on the side of the absorbent element A pocket is formed between the part of the free standing line from the edge and the use surface of the gather flap ,
A gather flap sheet constituting the gather flap is fixed in an overlapping state on the leakage prevention sheet, and is folded back through the upright line on the center side of the product, and the folded portion is not fixed to the leakage prevention sheet. And extends outward from the side edge of the absorbent element to form a folded region, and then folded toward the center side and extends to the center side of the free standing line inside the side edge of the absorbent element. The sanitary napkin is characterized in that an outer portion from the free standing line forms a width direction outer portion that is not in a fixed relationship with the absorbent element .
[0007]
(Function and effect)
The effects produced by the invention according to claim 1 are as follows.
A. The absorbent element receives the body fluid from the use surface side and holds it inside, but does not penetrate the back surface side due to the leakage prevention sheet.
B. Since the gather flap has the outer elastic elastic member at a portion extending outward from the side edge of the absorbent element, the gather flap stands on the use surface side by the contraction force. This gather flap constitutes the final barrier cuff for preventing side leakage.
C. Since the outer portion in the width direction from the standing rising line is not in a fixed relationship with the leakage preventing sheet, the gather flap and the absorbing element stand without being restricted by the leakage preventing sheet. However, even if the gather flap and the absorbent element are curved in the front-rear direction along the crotch part and their both side edges stand up, they are not restrained by the leakage prevention sheet. Accordingly, side leakage can be effectively prevented regardless of the movement of the user.
D. The lateral side of the absorbent element is always fitted to the body by the inner elastic elastic member located on the back surface of the absorbent element at the outer side in the width direction from the rising line, and the side of the absorbent element is always fitted to the body while preventing side leakage. Increases the absorbency. Even if a side leak occurs from both sides of the absorbent element, it is formed outward of the absorbent element by the outer elastic elastic member in a portion extending outward from the absorbent element side edge of the gather flap. Lateral leakage is prevented by the gather flap.
E. By setting the position of the inner elastic elastic member as the part located on the back surface of the absorbent element, the side edge of the absorbent element and the side edge of the gather flaps stand independently, each independently Fits the skin and increases the side leakage prevention effect.
F. In particular, in the case of the present invention in which the elastic elastic member is arranged on the absorbent element itself, the position of the elastic elastic member is not the side edge of the absorbent element, but the back surface portion of the absorbent element in the width direction outward from the standing rising line, It stands up so that the side edge of an absorption element is pushed up from the lower part. However, the side edge of the absorbent element is not completely constrained by the elastic elastic member and has a certain degree of freedom, so that the feeling of wearing is excellent. In addition, the site | part located in the back surface of an absorption element said to this invention means a part which is a part of an absorption element, and is 1 mm or more inward from the at least the both-sides edge of the back surface side.
G. The gather flap uses a hydrophobic or water-repellent nonwoven fabric to improve the skin feel. On the other hand, it is desirable to use a plastic sheet such as polyethylene as the leakage prevention sheet to reliably prevent liquid leakage, but the plastic sheet has a poor skin feel. Then, the deterioration of the touch by a plastic sheet can be improved by fixing the gather flap sheet | seat which uses a nonwoven fabric sheet on a leak prevention sheet in the overlapping state.
H. The outer part in the width direction from the standing rising line in the return region is not fixed to the gather flap sheet to be overlapped. Therefore, when the wing portion is formed on the leakage prevention sheet and the wing portion is folded back to the outer surface of the garment, the gather flap and the absorbing element can be freely raised without being related to the folding.
I. The gather flap has a free standing line at a position inside the side edge of the absorbent element, and the outer portion in the width direction from the free standing line is not fixed to the absorbent element, and the side part of the absorbent element is restrained by the gather flap sheet. As a result, the side portions of the absorbent element can stand up and deform independently. In the state where each stands, either the side of the absorbent element or the gather flap comes into contact with the skin, and the side leakage prevention effect is high.
J. et al. Furthermore, on the back surface of the absorbent element, the portion from the side edge of the absorbent element to the free upright line is formed as a pocket between the gathering flap and the use surface side, so that the body fluid temporarily exceeds the side edge of the absorbent element. However, since the body fluid is temporarily absorbed in the pocket and is absorbed by the absorbent element, it hardly reaches the rising edge of the gather flap.
K. The outer portion in the width direction from the free standing line of the folded region is not fixed to the absorbent element, and the outer portion in the width direction from the standing line in the returning region is also not fixed to the gathered flap sheet. Therefore, when the wing portion is formed on the leakage prevention sheet and the wing portion is folded back to the outer surface of the garment, the gather flap and the side portions of the absorbent element can stand up independently independently of the folding back. .
[0010]
<Invention of Claim 2 >
The leakage preventing sheet is a sanitary napkin according to claim 1 Symbol mounting extends outwardly in the widthwise direction from both side edges located in the gather the flap.
[0011]
(Function and effect)
The invention according to claim 2 has the following effects in addition to the effects A to K.
L. Since the leakage prevention sheet extends outward in the width direction from the both side edge positions of the gather flap, even if body fluid leaks outward beyond the side edge of the gather flap, Stops bodily fluids and prevents stains on shorts and clothing.
M.M. Furthermore, in the final process of the product, at the stage where each material is finally laminated, it is necessary to cut both sides to define the outer shape, but it is possible to cut the leakage prevention sheet in alignment with the both side edge positions of the gather flap. When it is difficult, commercialization is facilitated by extending the leakage prevention sheet outward in the width direction from both side edge positions of the gather flap and cutting at the extended position.
[0012]
[0013]
[0014]
[0015]
[0016]
<Invention of Claim 3 >
The absorbent element has a surface sheet that is located on the use surface side and transmits body fluid; and an absorbent core that receives the permeated body fluid and holds it inside.
The top sheet wraps around the use surface and both side surfaces of the absorbent core, and is wound up extending from the free standing line on the back side of the absorbent core to the center side,
The sanitary napkin according to claim 1 or 2, wherein the inner elastic elastic member is located between the top sheet and the back side of the absorbent core.
[0017]
(Function and effect)
The invention according to claim 3 has the following effects in addition to the effects A to M.
N. The elastic elastic member is not an absorbent core generally formed of a nonwoven fabric among the absorbent elements, but is in a surface sheet generally made of a material having a certain degree of strength, so that the side of the absorbent body is raised. The shape of the absorbent core is prevented from being lost, so that the upright shape of the absorbent element is maintained and the fit is maintained.
[0018]
<Invention of Claim 4 >
In the absorbent element, at least an inner position from both side edges in the middle in the longitudinal direction, standing embossing embosses are formed from the use surface side along the longitudinal direction, and the outer and inner elastic elastic members are formed from the standing embossing embossments. The sanitary napkin according to any one of claims 1 to 3 , wherein the sanitary napkin extends in the longitudinal direction outward in the width direction.
[0019]
(Function and effect)
The invention according to claim 4 has the following effects in addition to the effects A to N.
O. In the absorbent element, at least an inner position from both side edges in the middle in the longitudinal direction, the embossing for standing support is formed along the longitudinal direction from the use surface side. When it is lifted from the back side to the use surface side, it folds along the standing-promoting embossing, so that both sides of the absorbent element are reliably lifted from the back side to the use surface side.
[0020]
[0021]
[0022]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in more detail with reference to the drawings.
<First Embodiment>
1st Embodiment is shown in FIGS. 1-6, and the upper side of FIG. 1 is the front.
The sanitary napkin of the present invention is used from the side to the back side;
An absorbent element 10 for receiving body fluid from the use surface side and holding it inside,
At least in the middle of the longitudinal direction, it is on the back surface side of the absorbent element 10 and extends outward in the width direction from both side edges of the absorbent element 10, and has outer elastic elastic members 21A and 21A at the extended portions. And the gather flap 20 which has the inner side elastic elastic members 21B and 21B in the part located in the back of the absorption element,
A leakage preventing sheet 30 made of, for example, a polyethylene sheet, which prevents body fluid from leaking from the absorbent element 10 to the back surface, and extends outward in the width direction from both side edge positions of the absorbent element 10;
Is provided.
[0023]
The absorbent element 10 is located on the use surface side and allows the body fluid to pass therethrough, and the top sheet 11 using a non-woven fabric or preferably a polyethylene sheet having a small hole for passing the body fluid from the outer surface to the inner surface direction but preventing reversal. And an absorbent core 12 having absorbent paper that wraps the upper and lower surfaces or the entire surface thereof as necessary. Of course, a polymer-absorbing polymer can be contained. In the embodiment, the top sheet 11 wraps around the use surface and both side surfaces of the absorbent core 12 and extends from the free standing line 40 on the lower surface to the center side (so-called forehead winding).
[0024]
The gather flap 20 is preferably made of a non-woven material such as hydrophobic or water repellent, and is made of a body fluid-inhibiting sheet 22 that can also be used as a body fluid-impermeable plastic sheet. The gather flap sheet 22 forming the gather flap 20 is fixed on both sides of the leakage prevention sheet 30 in a superposed state by, for example, a hot melt adhesive (the fixing portion is indicated by *). ), Folded back at the center side of the product, directed outward in the width direction with the fold line 22B as a boundary, and folded back toward the center side outside the side edge of the absorbent element 10 at least on the side of the absorbent element 10 It extends to the center side from the free standing line 40 inside the edge. Of the folded region 22C between the inner folded end and the outer folded end of the gather flap sheet 22 from the side edge of the absorbent element 10, the gather flap sheet 22 is free inside the side edge of the absorbent element 10. The absorbent element 10 and the hot melt adhesive are fixed in the vicinity of the upright line 40. At this time, at least the width direction outer portion 22C2 from the free standing line 40 is not fixed to the absorbent element 10. Further, the gather flap sheet 22 forms a bag-like gather flap 20 by bonding the folded portion on the absorbent element 10 side with a hot melt adhesive or the like in the inner portion 22C1 from the free standing line 40.
[0025]
In the example shown in the figure, the gather flap 20 is folded back toward the center outside the side edge of the absorbent element 10 to form a bag shape, but is cut outside the side edge of the absorbent element 10. You may do it.
[0026]
Further, as shown in the figure, the folded region 22C located outward in the width direction from the fold line 22B has a non-fixed folded portion on the leakage prevention sheet 30 side of the gather flap sheet 22, so the gather flap The entire 20 folded regions 22C stand freely on the use surface side. That is, the fold line 22 </ b> B serves as a rising line of the gather flap 20.
[0027]
On the other hand, folding embosses 51 and 51 are formed from the use surface side along the longitudinal direction at positions inside the both side edges at least in the middle in the longitudinal direction of the absorbent element 10. The folding embosses 51, 51 are arcs having an arc center on the side outward of the napkin or substantially arcuate curves. Further, connecting embosses 52, 52 are formed by connecting arcs or substantially arc-shaped curves in the direction connecting the front and rear folding embosses 51, 51. In the region closed by these embosses 51, 51, 52, 52, the absorbent core 12 is set to a medium height. Therefore, it is set as the structure which aims at absorption intensively to the mid-high part of the absorption core 12 in the embossing 51,51,52,52 area | region.
[0028]
FIG. 2 shows the relationship between the fixed part and the non-fixed part of the sheet hot melt adhesive. As the front and rear end fixing portions, the top sheet 11 and the leakage prevention sheet 30 are fixed, the leakage prevention sheet 30 and the gather flap sheet 22 are fixed to each other, and the folded portions of the gather flap sheet 22 are fixed. The fixing parts other than the front and rear end parts are as shown in FIGS.
[0029]
3 and 4, the non-fixed portion is a region in which the hatched area Z1 of the solid line in FIG. 2 does not fix the folded portions of the gather flap sheet 22 on the leakage prevention sheet 30 side. Yes, the portion indicated by the broken hatching area Z2 is an area where the absorbent element 10 and the gather flap sheet 22 are not fixed.
[0030]
On the other hand, the gather flap 20 is provided with an outer elastic stretch member 21A and an inner elastic stretch member 21B that bend the gather flap 20 and the absorbent element 10 toward the use surface and raise their side portions toward the use surface. ing. As shown in the figure, the elastic elastic members are preferably in the bag-shaped gather flap 20 so as not to directly contact the skin. The outer elastic elastic member 21A is arranged at a portion extending outward from the side edge of the absorbent element 10 of the gather flap 20, and the inner elastic elastic member 21B is located outward in the width direction from the upright line 22B. , Disposed on the back surface of the absorbent element 10. In the present embodiment, the portion located on the back surface of the absorbent element 10 refers to a part of the gather flap 20 that is on the back surface side of the absorbent element 10 and whose width direction is inward from the side edge of the absorbent element 10. To tell.
[0031]
Due to the contraction of the outer elastic elastic member 21A in the extended portion, the gather flap 20 rises outward from the side edge of the absorbent element 10, and finally forms a barrier cuff that prevents side leakage. Further, by the interaction with the contraction of the inner elastic elastic member 21B, the absorbent element 10 and the gather flap 20 are bent in the front-rear direction on the use surface side, and the side portion of the absorbent element 10 is lifted from the lower side to the use surface side. Stand up. At this time, since the inner elastic elastic member 21B is always located at the lower side of the absorbent element 10, even when the user exercises violently, the standing shape of the side part of the absorbent element 10 is maintained. Therefore, in any state, the body fluid is effectively guided inward of the absorbent element 10 to prevent side leakage. Furthermore, even if it exceeds the standing side part of the absorption element 10, since the barrier cuff by the gather flap 20 is formed in the outer side, it does not leak sideways.
[0032]
Here, any of the elastic elastic members 21A and 21B can adopt elastic elastic foam (for example, urethane foam) in addition to the thread rubber. An example in which two outer elastic members 21A and one inner elastic member 21B are arranged is a suitable example.
[0033]
On the other hand, the adhesive length between the elastic elastic members 21A and 21B and the gather flap sheet 22 is preferably 50 to 150 mm, particularly 70 to 110 mm. Further, the stretch ratio is preferably 100 to 300%, preferably 100 to 200%, particularly preferably 150%. Furthermore, the stress at 150% elongation is preferably 10 to 50 gf / mm 2 . At this time, it is preferable that the shrinkage of the outer elastic stretch member 21A is the same as or longer than the shrinkage of the inner elastic stretch member 21B.
[0034]
The width W1 extending from the side edge of the absorbent element 10 of the gather flap 20 is desirably 2 to 20 mm, particularly 10 mm. The pocket width W2 is desirably 2 to 20 mm, and the width of 22C is desirably 20 to 40 mm. The length is preferably 50 to 120 mm. The width of 22C2 is preferably 10 to 30 mm.
[0035]
Under such a configuration, when the napkin of the present invention is mounted, an adhesive (not shown) provided on the back surface (front surface) of the leakage prevention sheet 30 is temporarily applied to the inner surface of the shorts and the wing portion 31 is attached. Is wound around the outer surface of the shorts and temporarily fixed with an adhesive (not shown).
[0036]
The wearing state is conceptually shown in FIGS. The napkin is curved along the crotch portion in the front-rear direction. At this time, the side part of the gather flap 20 stands up by the contraction force of the outer elastic members 21A and 21A. Since this gather flap has the elastic elastic member 21A in the extending portion extending outward in the width direction from the side edge of the absorbent element 10, the gather flap comes to stand on the use surface side by the contraction force. Therefore, the gather flap 20 constitutes the final barrier cuff for preventing side leakage. In addition, both sides of the absorbent element 10 are lifted from the back surface side to the use surface side by the standing of the gather flap 20 and the contraction of the inner elastic elastic member 21B located on the back surface of the absorbent element 10. As a result, at least both sides thereof are always fitted to the body, and the absorbability into the absorbent element 20 is enhanced while preventing side leakage. If a side leak occurs from both sides, the side flap is finally prevented by the gather flap 20.
[0037]
The gather flap 20 has a free standing line 40 at a position inside the side edge of the absorbent element 10, and the widthwise outer portion of the free standing line 40 is not fixed to the absorbent element 10. However, when the absorbent element 10 is bent in the front-rear direction along the crotch portion when the napkin is mounted, the side portion of the absorbent element 10 is not completely restrained by the component sheet 22 of the gather flap 20. The side portion of the absorbing element 10 rises and deforms independently to the use surface side along with the curved deformation of the absorbent element 10, and the gather flap 20 also stands and deforms independently. Therefore, either the side part of the absorption element 10 or the gather flap 20 comes in contact with the skin, and the side leakage prevention effect is high. Furthermore, since the inner elastic elastic member 21B is located at the lower side of the absorbent element 10, even if the side of the absorbent element is twisted, it returns to the standing shape again.
[0038]
Furthermore, since the part from the side edge of the absorption element 10 to the free standing line 40 is formed as a pocket P between the use surface of the gather flap 20 on the back surface of the absorption element 10, the side edge of the absorption element 10 is temporarily assumed. Even when the body fluid exceeds, it is absorbed by the absorbent element 10 in the process in which the body fluid stays temporarily in the pocket P, so that the rising edge of the gather flap 20 is rarely reached.
[0039]
Furthermore, the width direction outer portion 22C2 from the free standing line 40 of the gather flap 20 is not fixed to the absorbent element 10, and the folded portion 22C on the leakage prevention sheet 30 side of the gather flap sheet 22 is not fixed. Therefore, since it is unrelated to the leakage prevention sheet 30, the side portions of the gather flap 20 and the absorbent element 10 can stand up freely without being related to the folding of the leakage prevention sheet 30 to the outer surface of the clothing, for example. Can do.
[0040]
<Embodiment of Reference Example 1 >
In the said 1st Embodiment, the inner side elastic elastic member 21B exists in the bag-shaped gather flap 20. As shown in FIG. On the other hand, as shown in FIG. 7, the inner elastic elastic member 21 </ b> B may be located on the back surface portion of the absorbent element 10 on the outer side in the width direction from the upright line 22 </ b> B. In this Embodiment, the site | part located in the back surface of the absorption element 10 means a part which is a part of the absorption element 10, and is 1 mm or more inward from the both-sides edge of the back surface side. The inner elastic elastic member 21 </ b> B is particularly preferably bonded to the top sheet 11 constituting the absorbent element 10.
[0041]
Thus, when the inner elastic elastic member 21B is provided not on the gather flap 20 but on the absorbent element 10 itself, the rising edge of the side edge of the absorbent element 10 is raised on the gather flap 20, that is, on the outer elastic elastic member 21A. Not completely restrained by contraction. However, the side portions of the absorbent element 10 stand up to some extent independently, and the shape of the absorbent element 10 itself can be maintained without being affected by the movement of the gather flap 20. In particular, in the present invention, the inner elastic elastic member 21B is arranged at a portion located on the back surface instead of the side edge of the absorbent element 10, so that the side edge of the absorbent element 10 moves freely without being constrained. Excellent.
[0042]
<Embodiment of Reference Example 2 >
In the present invention, in the first and second embodiments, the position of the inner elastic elastic member 21B can be set as the inner portion of the free standing line 40. In the second embodiment, an example in which the position of the inner elastic elastic member 21B is the inner portion of the free standing line 40 is shown in FIG.
[0043]
<Embodiment of Reference Example 3 >
In any of the other embodiments, the object of the present invention can be achieved even if the gather flap is fixed to the side edge of the absorbent element without providing a free standing line. For example, in the second embodiment, an example in which a free standing line is not provided and the gather flap is fixed to the side edge of the absorbent element is shown in FIG.
[0044]
【The invention's effect】
As described above, according to the present invention, the two elastic elastic members effectively arranged on both sides of the absorbent element are lifted from the back side to the use side, so that at least the both sides are always fitted to the body, Furthermore, it can hold | maintain in the fitted state and can improve the absorptivity to the inside of an absorption element, preventing a side leak. And if a side leak occurs from both sides, the side leak can be finally prevented by the gather flap, thus providing a double side leak prevention function.
[Brief description of the drawings]
FIG. 1 is a plan view from the use surface side of a sanitary napkin of the present invention.
FIG. 2 is an explanatory diagram of fixed and non-fixed portions.
FIG. 3 is a view taken along line 3-3 in FIG. 1;
FIG. 4 is an enlarged cross-sectional view of a main part thereof.
FIG. 5 is an enlarged cross-sectional view of a main part in use.
FIG. 6 is a perspective view of the usage state.
7 is an enlarged cross-sectional view of a main part of an embodiment of Reference Example 1. FIG.
8 is an enlarged cross-sectional view of a main part of an embodiment of Reference Example 2. FIG.
9 is an enlarged cross-sectional view of a main part of an embodiment of Reference Example 3. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Absorbing element, 11 ... Surface sheet, 12 ... Absorbing core, 20 ... Gather flap, 21A, 21B ... Elastic elastic member, 22 ... Gather flap sheet, 30 ... Leak prevention sheet, 31 ... Wing part, 40 ... Free standing line , 51, 52 ... Emboss.

Claims (4)

使用面側から体液を受け入れて内部に保持する吸収要素と、
少なくとも長手方向中間において、前記吸収要素の裏面側にあって、かつ前記吸収要素の両側縁より幅方向にそれぞれ延在するギャザーフラップと、
前記ギャザーフラップより裏面側にあって衣類側への体液漏れを防止する漏れ防止シートとを備え、
前記ギャザーフラップは、前記吸収要素の側縁より内方に起立起線と自由起立線を有し、前記起立起線より外方部分は前記漏れ防止シートに対して固定関係にない折り返し領域と、前記自由起立線より外方部分は前記吸収要素に対して固定関係にはない幅方向外方部分を有し、
前記ギャザーフラップには、前記折り返し領域の前記吸収要素側縁より外方に位置する部位に外側弾性伸縮部材が、前記幅方向外方部分の前記吸収要素側縁より内方に位置する部位に、内側弾性伸縮部材が配置され、
前記外側弾性伸縮部材及び前記内側弾性伸縮部材により、前記起立起線を境にして前記ギャザーフラップ及び前記吸収要素を使用面側に起立するように構成し、かつ、使用時において前記吸収要素の側縁から自由起立線の部分と前記ギャザーフラップの使用面との間にポケットを形成し、
前記ギャザーフラップを構成するギャザーフラップシートが、前記漏れ防止シート上に重ね合わせ状態で固定され、製品の中央側において前記起立起線を介して折り返され、この折り返し部分が前記漏れ防止シートと非固定とされて前記吸収要素の側縁より外方まで延在し折り返し領域を形成し、次いで、中央側に向かって折り返され前記吸収要素の側縁より内側の前記自由起立線よりも中央側に延在し、前記自由起立線より外方部分は前記吸収要素に対して固定関係にはない幅方向外方部分を形成していることを特徴とする生理用ナプキン。
An absorbent element that receives body fluid from the use surface side and holds it inside,
A gather flap that is on the back side of the absorbent element and extends in the width direction from both side edges of the absorbent element at least in the middle in the longitudinal direction;
A leak prevention sheet on the back side from the gather flap to prevent body fluid leakage to the clothing side,
The gather flap has a standing erection line and a free erection line inward from the side edge of the absorbent element, and the outer part of the rising erection line is a folded region that is not in a fixed relationship with the leakage prevention sheet; The outer portion of the free standing line has a width direction outer portion that is not in a fixed relationship with the absorbent element,
In the gather flap, an outer elastic elastic member is located at a part located outward from the absorbent element side edge of the folded region, and a part located inward from the absorbent element side edge of the widthwise outer part, An inner elastic elastic member is arranged,
The outer elastic stretchable member and the inner elastic stretchable member are configured to stand the gather flap and the absorbent element on the use surface side with respect to the rising line, and in use, on the side of the absorbent element A pocket is formed between the edge of the free standing line from the edge and the use surface of the gather flap ,
A gather flap sheet constituting the gather flap is fixed in an overlapping state on the leakage prevention sheet, and is folded back through the upright line on the center side of the product, and the folded portion is not fixed to the leakage prevention sheet. And extends outward from the side edge of the absorbent element to form a folded region, and then folded toward the center side and extends to the center side of the free standing line inside the side edge of the absorbent element. The sanitary napkin is characterized in that an outer portion from the free standing line forms a width direction outer portion that is not in a fixed relationship with the absorbent element .
前記漏れ防止シートは、前記ギャザーフラップの両側縁位置より幅方向外方に延在している請求項1記載の生理用ナプキン。The leakage preventing sheet is both side edges extending Mashimashi to have claim 1 Symbol placement of the sanitary napkin in the widthwise direction outward of the position of the gather the flap. 前記吸収要素は、使用面側に位置し体液を透過させる表面シートと、透過した体液を受け入れて内部に保持する吸収コアとを有し、
前記表面シートは、吸収コアの使用面および両側面を包み、吸収コア裏面側の自由起立線より中央側に延在して巻き込まれ、
前記内側弾性伸縮部材は、前記表面シートと前記吸収コアの裏面側との間に位置している請求項1または2記載の生理用ナプキンである。
The absorbent element has a surface sheet that is located on the use surface side and transmits body fluid; and an absorbent core that receives the permeated body fluid and holds it inside.
The top sheet wraps around the use surface and both side surfaces of the absorbent core, extends from the free standing line on the back side of the absorbent core, and is wound around,
The sanitary napkin according to claim 1 or 2, wherein the inner elastic elastic member is located between the top sheet and the back side of the absorbent core.
前記吸収要素には、少なくとも長手方向中間における両側縁より内側位置において、長手方向に沿って起立助長用エンボスが使用面側から形成され、前記外側及び内側弾性伸縮部材は、その起立助長用エンボスより幅方向の外方において長手方向に延在している請求項1〜のいずれか1項に記載の生理用ナプキン。In the absorbent element, at least an inner position from both side edges in the middle in the longitudinal direction, standing embossing embosses are formed from the use surface side along the longitudinal direction, and the outer and inner elastic elastic members are formed from the standing embossing embossments. The sanitary napkin according to any one of claims 1 to 3 , wherein the sanitary napkin extends in the longitudinal direction outward in the width direction.
JP2000039063A 2000-02-17 2000-02-17 Sanitary napkin with gathered flap Expired - Fee Related JP4190693B2 (en)

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US11497657B2 (en) 2015-05-29 2022-11-15 The Procter & Gamble Company Absorbent articles having channels and wetness indicator
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US10632029B2 (en) 2015-11-16 2020-04-28 The Procter & Gamble Company Absorbent cores having material free areas
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US11123240B2 (en) 2016-04-29 2021-09-21 The Procter & Gamble Company Absorbent core with transversal folding lines

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