JP4208338B2 - Sanitary napkin - Google Patents

Sanitary napkin Download PDF

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Publication number
JP4208338B2
JP4208338B2 JP10063899A JP10063899A JP4208338B2 JP 4208338 B2 JP4208338 B2 JP 4208338B2 JP 10063899 A JP10063899 A JP 10063899A JP 10063899 A JP10063899 A JP 10063899A JP 4208338 B2 JP4208338 B2 JP 4208338B2
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Japan
Prior art keywords
sanitary napkin
layer
sheet
sheet material
elastic member
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JP10063899A
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Japanese (ja)
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JP2000288025A (en
Inventor
淳 村井
宏典 河崎
浩美 滝田
耕裕 山本
美次 濱島
稔 中西
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Kao Corp
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Kao Corp
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Description

【0001】
【発明の属する技術分野】
本発明は、フィット性に優れ、漏れ防止性に優れた生理用ナプキンに関する。
【0002】
【従来の技術及び発明が解決しようとする課題】
一般に、生理用ナプキンや失禁パッド、母乳パッド等の吸収性物品として、肌当接面を形成する液透過性の表面層、液不透過性の裏面層、及び該表面層と該裏面層との間に介在された液保持性の吸収層を有する実質的に縦長の吸収性物品はよく知られている。この様な吸収性物品は、血液、尿等の体液を漏れなく吸収・保持させることが要求される。
【0003】
体液を漏れなく吸収・保持させるための技術としては、従来より、吸収性物品の両側部に装着者側に突出する防漏部を形成させる技術が知られている。この様な防漏部を形成させる技術としては、吸収層の側外方において表面層である表面シートに吸収性物品の長手方向に弾性部材を固定して、該表面シートを裏面層としての裏面シートから断面山形に起立させる技術(特開平1−213402号)や、吸収体の周囲において起立するシート状のバリアカフスと、該バリアカフスの更に外方に配置されるガスケットカフスとを設ける技術(特開昭62−250201号)、弾性片(合成樹脂フィルム)を肌当接面の両側縁部に伸張させた状態で配置しその両端を固定させて、伸縮により弾性片の中央部を起立させる技術(特開平8−117273号)等がある。
また、特開平5−345001号公報、特開平7−163620号公報及び特開平7−112007号公報には、吸収性物品の左右両側縁から外方に延出されるように配されたシート材に複数のひも状の弾性部材が配されて、吸収性物品の上方に起立される一対の防漏壁が形成された吸収性物品が提案されている。
【0004】
しかし、上述の各提案に係る吸収性物品では、上記の従来技術における防漏部では、漏れ防止効果と違和感のない良好な装着感の両方を満足することはできない。
【0005】
従って、本発明の目的は、優れた防漏性が発揮され、良好な装着感を得ることのできる生理用ナプキンを提供することにある。
【0006】
【課題を解決するための手段】
本発明は、肌当接面を形成する液透過性の表面層、液不透過性の裏面層、及び該表面層と該裏面層との間に介在された液保持性の吸収層を有する実質的に縦長の吸収性物品において、吸収性物品の左右両側には、それぞれ、複数本のひも状の弾性部材が、吸収性物品の長手方向に向けて伸長された状態で配設されており、該弾性部材の収縮により肌当接面側に凸の凸曲面形状の立体形態が形成されている吸収性物品を提供することにより、上記目的を達成したものである。
【0007】
【発明の実施の形態】
以下、本発明の生理用ナプキンの好ましい一実施形態について説明する。本実施形態の生理用ナプキン1は、図1〜3に示すように、肌当接面を形成する液透過性の表面層としての表面シート2、液不透過性の裏面層としての裏面シート3、及び該表面シート2と該裏面シート3との間に介在された液保持性の吸収層としての吸収体4を有し、実質的に縦長の形状をしている。
【0008】
而して、本実施形態の生理用ナプキン1は、図1〜3に示すように、該生理用ナプキン1の左右両側1a、1bには、それぞれ、複数本のひも状の弾性部材5(5a、5b)が、生理用ナプキン1の長手方向に向けて伸長された状態で配設されて、該弾性部材5(5a、5b)の収縮力により、肌当接面11側に凸の凸曲面形状の立体形態Uが形成されている。
ここで「ひも状」とは、糸状のものや細長にスリットしてなるフィルム等を含む意であり、具体的には好ましくは幅10mm以下のものであればよい。
【0009】
更に詳述すると、本実施形態においては、吸収体4は、ほぼ長方形状の下方吸収体4aと該下方吸収体4a上の中央部に載置された略楕円形状の上方吸収体4bとからなる。表面シート2は、吸収体4の表面側、側面及び下面の左右両側部を覆って配されている。裏面シート3は、吸収体4の下面を覆って且つ該吸収体の側縁よりも外方に向けて延出されている。
弾性部材5は、表面層としての表面シート2上に配された弾性部材付設用の帯状のシート材6に等間隔で3本配されており、それぞれシート材6の長手方向全域に亘って配されている。なお、「表面シート2上」とは、表面シート2の上方の意であり、本実施形態のように、シート材6の一部でも表面シート2の上方に位置すればよい。
【0010】
シート材6は、生理用ナプキン1の左右両側縁部において生理用ナプキン1の長手方向全域に亘って配されており、1側縁6aは、裏面シート3に接合・固定されており、他側縁6bは、表面シートに接合・固定されている。また、両端縁は、それぞれ裏面シート3及び表面シートに接合・固定されている。即ち、シート材6は、その周縁、即ち両側縁6a、6b及び両端縁は、固定されているが、その他の部分は何れにも固定されておらず、自由状態とされている。
そして、立体形態Uにおいて裏面層を形成する裏面シート3の上方には、裏面シート3及びシート材6に囲まれた空隙9が形成されている。
また本実施形態の生理用ナプキン1では、長手方向の中央部の肌当接面に生理用ナプキン1の長手方向に沿う一対の線状の溝7,7が、エンボス加工により形成されている。溝7,7により、シート材6は、表面シート2に固着されている。即ち、溝7,7は、シート材6の表面に設けられていると共に、表面シート2及び吸収体4の表面側にも設けられている。また、生理用ナプキン1の内方に向けて凸となるように湾曲されている。
【0011】
複数の弾性部材5のうち、幅方向中央部に配された伸張された状態の弾性部材5aの収縮力は、左右両側に配された伸長された状態の弾性部材5bの収縮力よりも高くなされているのが、良好な立体形態Uを付与する点で好ましい。
このように収縮力の差を設けるには、中央部と両側とを同じ弾性材料を用いた場合には、伸張率若しくは弾性材料を配する間隔を変えればよく、また、異なる弾性部材を用いた場合には、中央部に配する弾性材料を弾性率等の弾性物性の良いものを用いればよい。また、この差は、後述する高さが保たれる程度とするのが好ましいが、特に制限されない。
【0012】
また、立体形態Uの高さhは、1〜15mmが好ましく、2〜10mmがより好ましい。高さを1mm以上とすることにより、側部のフィット性が高くなり、15mm以下とすることにより、違和感が生じず、装着感が低下することがないので、好ましい。
【0013】
立体形態Uを形成する部位の幅(本実施形態においてはシート材6の幅とほぼ同じである)w1の生理用ナプキン1の幅Wに対する比(w1/W)は、0.1〜0.4とするのが好ましい。
【0014】
生理用ナプキン1は、該生理用ナプキン1の長手方向において、肌当接面11側に凹状に湾曲した形状を有する。
具体的には、良好フィット性を得る点で、生理用ナプキンの長手方向における肌当接面側に凹状に湾曲する湾曲率としては、曲率半径r(図3参照)が50〜300mmであることが好ましく、100〜200mmであることがより好ましい。
【0015】
このように好ましい曲率半径r及び幅方向の凸面形状の高さhを得ることは、伸縮性材料の伸縮物性、伸縮率及び伸縮材料の幅方向の固定点15b,15cに関係する。
【0016】
次に、本実施形態の生理用ナプキン1を構成する各部材の形成材料について説明する。
上記表面シート2、上記裏面シート3及び上記吸収体4の形成材料としては、従来公知の生理用ナプキンに用いられるものを特に制限なく用いることができる。
また、上記シート材6としては、下記するシート材料等が用いられる。
ポリエチレン(PE)、ポリプロピレン(PP)、ポリエステル、ポリエチレン−ポリプロピレン複合繊維、ポリエチレン−ポリエステル複合繊維からなる湿式もしくは乾式不織布、及びポリエチレン、ポリプロピレン等のフィルム材料やフィルム材料を開孔した開孔フィルム等が用いられる。
肌触り等の点では、メルトブローン不織布、サクションヒードボンド不織布、スパンボンド不織布等の乾式不織布が好ましく、防漏性を高めるために撥水性であることが望ましい。
上記弾性部材5としては、細長く、伸び縮みする材料であればよく、天然ゴム(糸状ゴム、平ゴム等)、熱可塑性エラストマー〔ウレタン、エチレン−酢酸ビニル共重合体(EVA)、PE等〕、更に具体的には、ポリブタジエン、ポリイソプレン、スチレン−ブタジエン共重合体、スチレン−イソプレン共重合体、ポリウレタン、エチレン−酢酸ビニル共重合体、エチレン−αオレフィン共重合体等を糸状に成形するか又はフィルムに成型し細幅にスリットしたものが挙げられる。
【0017】
本実施形態の生理用ナプキン1は、通常の生理用ナプキンと同様に使用することができる。
そして、本実施形態の生理用ナプキン1は、上述の如く構成されているので、立体形態Uが着用者の排泄部の側部に良好にフィットし、漏れ防止性、特に横漏れ防止性が向上される。また、生理用ナプキン1が、その長手方向において、肌当接面側に凹状に湾曲した形状となっているため、長手方向においても、身体の曲線にフィットし前後の液漏れも効果的に防止できる。
弾性部材で形成される凸曲面の立体形態Uは、着用者の足の動き(股間幅の変動)にも、常にフィットしながら自在に変形可能であり、特に凸曲面の立体形態において裏面層の上方に空隙9を有するものに関しては、着用者の動き/圧力を緩和し、吸収体側部に圧力を伝え難く、生理用ナプキンが一層ヨレたりずれたりせず、より一層モレを効果的に防止できる。
【0018】
本実施形態の生理用ナプキンは、常法に従って、吸収体を表面シート及び裏面シートで狭持した後、弾性部材を張設したシート材を所定位置に接合固定する等して得られる。
【0019】
、上記弾性部材は、上記表面層を形成する表面シートに配することもできる。
また、裏面層と吸収層とを一体に成形することもでき、また、表面層と吸収層とを一体に成形することもできる。
また、生理用ナプキン1の裏面シート3側にウイングを設けることもできる。
また、上記弾性部材が3本設けられたものを例示して説明したが、弾性部材を配置する位置を調整すれば弾性部材の数は2本でもよい。
【0020】
【発明の効果】
本発明の生理用ナプキンは、優れた防漏性が発揮され、良好な装着感が得られるものである。
【図面の簡単な説明】
【図1】図1は、本発明の一実施形態としての生理用ナプキンを伸長させた状態を示す平面図である。
【図2】図2は、弾性部材を自由状態として図1のX−X線で切断した状態を示す一部切断斜視図である。
【図3】図3は、弾性部材を自由状態とした状態での図1のY−Y線断面を模式的に示す断面図である。
【符号の説明】
1 生理用ナプキン(吸収性物品)
2 表面シート
3 裏面シート
4 吸収体
5 弾性部材
6 シート材
7 溝
[0001]
BACKGROUND OF THE INVENTION
The present invention is excellent in fit, relates to good sanitary napkin on to leakproof.
[0002]
[Prior art and problems to be solved by the invention]
In general, as absorbent articles such as sanitary napkins, incontinence pads, and breast milk pads, a liquid-permeable surface layer that forms a skin contact surface, a liquid-impermeable back layer, and the surface layer and the back layer Substantially longitudinal absorbent articles having a liquid-retaining absorbent layer interposed therebetween are well known. Such an absorbent article is required to absorb and retain body fluids such as blood and urine without leakage.
[0003]
As a technique for absorbing and holding body fluid without leakage, a technique for forming a leak-proof portion that protrudes toward the wearer on both sides of an absorbent article is conventionally known. As a technique for forming such a leak-proof portion, an elastic member is fixed in the longitudinal direction of the absorbent article to the surface sheet that is the surface layer on the outer side of the absorbent layer, and the back surface as the back surface layer. A technique for providing a mountain-shaped cross-section from a sheet (Japanese Patent Laid-Open No. 1-213402), a technique for providing a sheet-shaped barrier cuff standing around an absorbent body, and a gasket cuff disposed further outward of the barrier cuff ( JP-A-62-250201), an elastic piece (synthetic resin film) is arranged in a stretched state on both side edges of the skin contact surface, both ends thereof are fixed, and the central part of the elastic piece is raised by stretching. There is a technique (Japanese Patent Laid-Open No. 8-117273).
In JP-A-5-345001, JP-A-7-163620, and JP-A-7-112007, a sheet material arranged to extend outward from left and right side edges of the absorbent article. There has been proposed an absorbent article in which a plurality of string-like elastic members are arranged to form a pair of leak-proof walls standing up above the absorbent article.
[0004]
However, in the absorbent article according to each of the above proposals, the leakage preventing part in the above-described conventional technology cannot satisfy both the leakage prevention effect and the good wearing feeling without discomfort.
[0005]
Accordingly, an object of the present invention is to provide a sanitary napkin that exhibits excellent leakage prevention properties and can obtain a good wearing feeling.
[0006]
[Means for Solving the Problems]
The present invention substantially includes a liquid-permeable surface layer that forms a skin contact surface, a liquid-impermeable back layer, and a liquid-retaining absorbent layer interposed between the surface layer and the back layer. In particular, in a vertically long absorbent article, a plurality of string-like elastic members are respectively arranged on the left and right sides of the absorbent article in a state of being elongated in the longitudinal direction of the absorbent article, The above object is achieved by providing an absorbent article in which a three-dimensional form of a convex curved surface is formed on the skin contact surface side by contraction of the elastic member.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a preferred embodiment of the sanitary napkin of the present invention will be described. Physiology napkin 1 of this embodiment, backsheet, as shown in FIGS. 1-3, the topsheet 2, a liquid impermeable back layer as a liquid permeable surface layer forming the skin contact surface 3 and an absorbent body 4 as a liquid-retaining absorbent layer interposed between the top sheet 2 and the back sheet 3 and has a substantially vertically long shape.
[0008]
Thus, as shown in FIGS. 1 to 3, the sanitary napkin 1 of this embodiment has a plurality of string-like elastic members 5 (5a) on the left and right sides 1a and 1b of the sanitary napkin 1, respectively. 5b) is arranged in a state of being stretched in the longitudinal direction of the sanitary napkin 1, and is a convex curved surface convex toward the skin contact surface 11 side by the contraction force of the elastic member 5 (5a, 5b). A three-dimensional shape U of the shape is formed.
Here, the “string” means to include a thread-like thing, a film formed by slitting in a slender shape, and specifically, it may preferably have a width of 10 mm or less.
[0009]
More specifically, in the present embodiment, the absorber 4 is composed of a substantially rectangular lower absorber 4a and a substantially elliptical upper absorber 4b placed at the center of the lower absorber 4a. . The topsheet 2 is arranged so as to cover the left and right side portions of the top surface, side surface, and bottom surface of the absorber 4. The back sheet 3 covers the lower surface of the absorber 4 and extends outward from the side edge of the absorber.
Three elastic members 5 are arranged at equal intervals on a belt-like sheet material 6 provided on the surface sheet 2 as a surface layer, and are arranged over the entire longitudinal direction of the sheet material 6. Has been. Note that “on the top sheet 2” means the top of the top sheet 2, and a part of the sheet material 6 may be positioned above the top sheet 2 as in the present embodiment.
[0010]
The sheet material 6 is arranged over the entire longitudinal direction of the sanitary napkin 1 at the left and right side edges of the sanitary napkin 1, and one side edge 6 a is joined and fixed to the back sheet 3. The edge 6 b is bonded and fixed to the top sheet 2 . Further, both end edges are bonded and fixed to the back sheet 3 and the top sheet 2 , respectively. That is, the periphery of the sheet material 6, that is, both side edges 6 a and 6 b and both end edges are fixed, but the other parts are not fixed at all and are in a free state.
In the three-dimensional form U, a space 9 surrounded by the back sheet 3 and the sheet material 6 is formed above the back sheet 3 forming the back layer.
Moreover, in the sanitary napkin 1 of this embodiment, a pair of linear groove | channels 7 and 7 along the longitudinal direction of the sanitary napkin 1 are formed in the skin contact surface of the center part of a longitudinal direction by embossing. The sheet material 6 is fixed to the top sheet 2 by the grooves 7 and 7. That is, the grooves 7 and 7 are provided on the surface of the sheet material 6 and also on the surface side of the topsheet 2 and the absorber 4. Further, the sanitary napkin 1 is curved so as to protrude toward the inside.
[0011]
Among the plurality of elastic members 5, the contraction force of the stretched elastic member 5a disposed at the center in the width direction is higher than the contraction force of the stretched elastic member 5b disposed on the left and right sides. It is preferable in terms of imparting a favorable three-dimensional form U.
In order to provide a difference in contraction force in this way, when the same elastic material is used for the central portion and both sides, it is only necessary to change the stretch rate or the interval at which the elastic material is disposed, and different elastic members are used. In such a case, an elastic material having good elastic properties such as an elastic modulus may be used as the elastic material disposed in the central portion. Further, this difference is preferably set to a level that can maintain the height described later, but is not particularly limited.
[0012]
Moreover, 1-15 mm is preferable and, as for the height h of the solid form U, 2-10 mm is more preferable. By making the height 1 mm or more, the side fit is improved, and by making the height 15 mm or less, it is preferable because a sense of incongruity does not occur and the wearing feeling does not decrease.
[0013]
The ratio (w1 / W) of the width of the part forming the three-dimensional form U (which is substantially the same as the width of the sheet material 6 in the present embodiment) to the width W of the sanitary napkin 1 is 0.1-0. 4 is preferable.
[0014]
The sanitary napkin 1 has a concavely curved shape on the skin contact surface 11 side in the longitudinal direction of the sanitary napkin 1.
Specifically, the curvature radius r (see FIG. 3) is 50 to 300 mm as a curvature that curves concavely toward the skin contact surface side in the longitudinal direction of the sanitary napkin in terms of obtaining good fit. Is preferable, and it is more preferable that it is 100-200 mm.
[0015]
Thus, obtaining the preferable curvature radius r and the height h of the convex shape in the width direction is related to the stretchable physical properties of the stretchable material, the stretchability, and the fixing points 15b and 15c in the width direction of the stretchable material.
[0016]
Next, the forming material of each member which comprises the sanitary napkin 1 of this embodiment is demonstrated.
As a material for forming the top sheet 2, the back sheet 3, and the absorber 4, those used for conventionally known sanitary napkins can be used without particular limitation.
Further, as the sheet material 6, the following sheet material or the like is used.
Wet or dry nonwoven fabrics made of polyethylene (PE), polypropylene (PP), polyester, polyethylene-polypropylene composite fibers, polyethylene-polyester composite fibers, and film materials such as polyethylene and polypropylene, and perforated films obtained by opening film materials. Used.
In terms of touch and the like, dry-type nonwoven fabrics such as a melt blown nonwoven fabric, a suction-head bond nonwoven fabric, and a spunbond nonwoven fabric are preferable, and water repellency is desirable in order to improve leakage resistance.
The elastic member 5 may be any material that is elongated and stretchable, such as natural rubber (thread-like rubber, flat rubber, etc.), thermoplastic elastomer [urethane, ethylene-vinyl acetate copolymer (EVA), PE, etc.], More specifically, polybutadiene, polyisoprene, styrene-butadiene copolymer, styrene-isoprene copolymer, polyurethane, ethylene-vinyl acetate copolymer, ethylene-α olefin copolymer, or the like is formed into a thread shape, or What was shape | molded into the film and slit it narrowly is mentioned.
[0017]
The sanitary napkin 1 of the present embodiment can be used in the same manner as a normal sanitary napkin.
And since the sanitary napkin 1 of this embodiment is comprised as mentioned above, the solid form U fits the side part of a wearer's excretion part favorably, and leakage prevention property, especially side leakage prevention property improves. Is done. Further, since the sanitary napkin 1 has a concave curved shape on the skin contact surface side in the longitudinal direction, the sanitary napkin 1 fits the body curve in the longitudinal direction and effectively prevents liquid leakage before and after. it can.
The three-dimensional form U of the convex curved surface formed of the elastic member can be freely deformed while always fitting to the movement of the wearer's foot (fluctuation of the crotch width). For those having an air gap 9 above, the movement / pressure of the wearer is relieved, it is difficult to transmit the pressure to the side of the absorbent body, the sanitary napkin does not move or shift further, and the leakage can be prevented more effectively. .
[0018]
The sanitary napkin of the present embodiment can be obtained by sandwiching an absorbent body between a top sheet and a back sheet and then bonding and fixing a sheet material stretched with an elastic member at a predetermined position according to a conventional method.
[0019]
The upper SL elastic member may be disposed on the topsheet to form the surface layer.
Further, the back layer and the absorption layer can be formed integrally, and the surface layer and the absorption layer can be formed integrally.
A wing can also be provided on the back sheet 3 side of the sanitary napkin 1 .
Also, has been illustrated and described what the elastic member is provided three, the number of the elastic members by adjusting the position of placing the elastic member may be a two.
[0020]
【The invention's effect】
The sanitary napkin of the present invention exhibits excellent leakage prevention properties and provides a good wearing feeling.
[Brief description of the drawings]
FIG. 1 is a plan view showing a state in which a sanitary napkin according to an embodiment of the present invention is extended.
FIG. 2 is a partially cut perspective view showing a state in which an elastic member is cut in a free state along line XX in FIG. 1;
FIG. 3 is a cross-sectional view schematically showing a cross section taken along line YY of FIG. 1 in a state where the elastic member is in a free state.
[Explanation of symbols]
1 Sanitary napkin (absorbent article)
2 Top sheet 3 Back sheet 4 Absorber 5 Elastic member 6 Sheet material 7 Groove

Claims (4)

肌当接面を形成する液透過性の表面層、液不透過性の裏面層、及び該表面層と該裏面層との間に介在された液保持性の吸収層を有する実質的に縦長の生理用ナプキンにおいて、
上記生理用ナプキンの左右両側には、それぞれ、複数本のひも状の弾性部材が、該生理用ナプキンの長手方向に向けて伸長された状態で配設されており、該弾性部材の収縮により肌当接面側に凸の凸曲面形状の立体形態が形成されており、
上記弾性部材は、上記表面層上に配され且つ上記吸収層に直接接合・固定されない帯状のシート材に配されており、
上記シート材の幅方向一側縁が上記裏面シートに接合・固定されて、該シート材の幅方向一側縁と該裏面シートとの接合固定部からなる、上記立体形態の外側縁部を形成しており、且つ該シート材の幅方向他側縁が上記吸収層の上方にて上記表面シートに接合・固定されて、該シート材の幅方向他側縁と該表面シートとの接合固定部からなる、上記立体形態の内側縁部を形成しており、
上記弾性部材が上記立体形態の外側縁部に配されていない生理用ナプキン。
A substantially longitudinally long surface having a liquid-permeable surface layer forming a skin contact surface, a liquid-impermeable back layer, and a liquid-retaining absorbent layer interposed between the surface layer and the back layer In sanitary napkins,
On both the left and right sides of the sanitary napkin, a plurality of string-like elastic members are arranged in a state of extending in the longitudinal direction of the sanitary napkin. A three-dimensional form of convex convex curved shape is formed on the contact surface side,
The elastic member is arranged on a belt-like sheet material that is arranged on the surface layer and is not directly bonded and fixed to the absorption layer ,
One side edge in the width direction of the sheet material is joined and fixed to the back sheet to form an outer edge portion of the above three-dimensional form consisting of a joint fixing part between the one side edge in the width direction of the sheet material and the back sheet. And the other edge in the width direction of the sheet material is joined and fixed to the top sheet above the absorbent layer, and the joint fixing portion between the other side edge in the width direction of the sheet material and the top sheet Formed the inner edge of the above three-dimensional form ,
A sanitary napkin in which the elastic member is not disposed on the outer edge of the three-dimensional form .
上記弾性部材のうち、幅方向中央部に配された伸張された状態の弾性部材の収縮力は、左右両側に配された伸長された状態の弾性部材の収縮力よりも高い請求項1記載の生理用ナプキン。  The contraction force of the elastic member in the extended state arranged in the center in the width direction among the elastic members is higher than the contraction force of the elastic member in the extended state arranged on the left and right sides. Sanitary napkin. 上記生理用ナプキンは、該生理用ナプキンの長手方向において、肌当接面側に凹状に湾曲した形状を有する請求項1記載の生理用ナプキン。  The sanitary napkin according to claim 1, wherein the sanitary napkin has a concavely curved shape on the skin contact surface side in the longitudinal direction of the sanitary napkin. 前記立体形態においては、裏面層上に空隙が形成されている請求項1〜3の何れかに記載の生理用ナプキン。  The sanitary napkin according to any one of claims 1 to 3, wherein a space is formed on the back surface layer in the three-dimensional form.
JP10063899A 1999-04-07 1999-04-07 Sanitary napkin Expired - Lifetime JP4208338B2 (en)

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