JP3773550B2 - Disposable diapers - Google Patents

Disposable diapers Download PDF

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Publication number
JP3773550B2
JP3773550B2 JP33143393A JP33143393A JP3773550B2 JP 3773550 B2 JP3773550 B2 JP 3773550B2 JP 33143393 A JP33143393 A JP 33143393A JP 33143393 A JP33143393 A JP 33143393A JP 3773550 B2 JP3773550 B2 JP 3773550B2
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Japan
Prior art keywords
sheet
waist
disposable diaper
longitudinal direction
edge side
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Japanese (ja)
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JPH07184954A (en
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憲一 田畑
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Daio Paper Corp
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Daio Paper Corp
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【０００１】
【産業上の利用分野】
本発明は、立体シート部および平面シート部を有する使い捨ておむつ等に関する。
【０００２】
【従来の技術】
近年、市場に提供されている使い捨ておむつ等は、種々の改良が加えられ漏れ防止が図られている。たとえば、特開昭６２−２５０２０１ 号公報においては、おむつの脚回りに起立するバリヤーカフスを形成するとともに、その外側のサイドフラップ部において表面シートと裏面シートとの間に介在して弾性伸縮部材を配設し、サイドフラップ部に収縮力を与えてガスケットカフスを形成することで二重バリヤーを形成し、横漏れ防止を図っている。
【０００３】
一方、おむつの腰回りでは、おむつの腰回りを着用者にフィットさせて、その腰回り部分からの漏れ、いわゆる前後漏れを防止するためにおむつの幅方向に弾性伸縮部材を設けたり、さらには該腰部に使用面側に起立するバリヤーシートを設けたりする工夫がなされている。
【０００４】
【発明が解決しようとする課題】
しかしながら、前述した使い捨ておむつの場合には、排液の漏れ防止の観点からは非常に有効であるけれども、その製作工程をみると、バリヤーシートを取付ける工程、バリヤーシートに対して弾性伸縮部材を固着して使用面側に起立するバリヤーカフスを形成する工程、サイドフラップ部に弾性伸縮部材を固着してガスケットカフスを形成する工程等、複雑な組立工程を踏まなければならない等の問題があった。
【０００５】
そこで、本発明の主たる課題は、組立工程数を少なくし、製作効率を向上させることができるとともに、漏れ防止効果の高い、使い捨ておむつを提供するものである。
【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のうち、請求項１記載の発明は、透液性表面シートと不透液性裏面シートとこれら両シートの間に吸収体が介在された使い捨ておむつにおいて、
前記使い捨ておむつの両側部における透液性表面シート上に、所定幅を有し、自体が材質的に長手方向の弾性伸縮性を有する脚部伸縮性シート状部材を略おむつ長手方向に沿って、前記長手方向の両端を除く長手方向の中間に配設するとともに、この脚部伸縮性シート状部材の幅方向外縁側部分をその長手方向に沿って連続的に固着し、かつ前記脚部伸縮性シート状部材の長手方向両端部をその全幅に渡って接着することにより、前記脚部伸縮性シート状部材の内縁側非固着部分で弾性伸縮性を有する立体シート部を形成し、並びに前記外縁側固着部分によって弾性伸縮性を有する平面シート部を形成し、前記立体シート部の長手方向両端は、前記吸収体上に位置する、
ことを特徴とする使い捨ておむつである。
【０００７】
請求項２記載の発明は、前記吸収体の前後端より外方の前後端部の少なくとも一方側における透液性表面シート上に、ある程度の幅を有する腰部伸縮性シート状部材をおむつ幅方向に沿って、前記脚部伸縮性シート状部材から離れて配設するとともに、この腰部伸縮性シート状部材の幅方向の外縁側部分をその長手方向に沿って連続的に固着し、腰部伸縮性シート状部材の内縁側非固着部分で腰部立体シート部を形成した請求項１記載の使い捨ておむつである。
【０００８】
請求項３記載の発明は、腰部立体シート部を形成すると同時に、固着した腰部伸縮性シート状部材の外縁側固着部分で腰バンドを形成した請求項２記載の使い捨ておむつである。
【０００９】
請求項４記載の発明は、脚部伸縮性シート状部材および腰部伸縮性シート状部材のうち少なくとも一方を平面的に視て、内方側に湾曲して固着した請求項１〜３のいずれか１項に記載の使い捨ておむつである。
【００１０】
前記脚部伸縮性シート状部材、腰部伸縮性シート状部材の各面または両面を、適宜、撥水処理を施すことにより、軟便の液分の横漏れおよび前後漏れを確実に防止することができる。
【００１１】
【作用】
本発明においては、透液性表面シートと不透液性裏面シートとの間に吸収体を介在させて組立てた後、ある程度の幅を有する脚部伸縮性シート状部材を用い、紙おむつ両側部の透液性表面シート上に配設することにより、この脚部伸縮性シート状部材自体で立体シート部を形成することができる。したがって、従来のような複雑な組立工程を経ることなく、１つの工程で簡単に立体シート部を一度に形成することができるようになり、もって製作効率を飛躍的に向上させることができる。
【００１２】
また、前記脚部伸縮性シート状部材の幅方向外縁側部分を固着し、その内縁側部分の非固着とすることにより、同時に立体シート部と平面シート部とを形成することができる。したがって、従来のような複雑な組立工程を経ることなく、１つの工程で簡単に立体シート部と平面シート部を一度に形成することができるようになり、もって製作効率を飛躍的に向上させることができる。
【００１３】
さらに、使い捨ておむつの腰部においても同様の方法により腰部立体シート部と腰バンドとを形成することができる。
【００１４】
この場合、特に前記脚部伸縮性シート状部材および腰部伸縮性シート状部材を平面的に視て、内方側に湾曲して固着して内縁側の伸縮力を強めることにより、立体シート部を効果的に起立させることができるとともに、紙おむつを船形に成形させることができる。
【００１５】
【実施例】
以下、本発明を実施例に基づいて詳説する。
図１において、本発明における紙おむつは、ポリエチレン等からなる不透液性裏面シート１と不織布などからなる透液性表面シート２との間に、綿状パルプ等からなる、たとえば長方形若しくは砂時計形状のある程度剛性を有する吸収体３が介在されている。吸収体３はその形状保持のために吸収紙（図示せず）により包むことができる。不透液性裏面シート１は吸収体３の周囲より外方に延在して砂時計形状を成しているとともに、これに相応して透液性表面シート２が吸収体３の周囲より外方に延在してホットメルト接着剤等により接合されている。前記不透液性裏面シート１と透液性表面シート２とでおむつ中間の両側部分にサイドフラップＳＦが形成されるとともに、おむつの前後端部にエンドフラップＥＦが形成されている。なお、背側の両側にはそれぞれ止着テープ６、６が固着されている。
【００１６】
使い捨ておむつの両側のサイドフラップ部分ＳＦ（正確には吸収体３とサイドフラップ部ＳＦに跨がって）の表面側に、ある程度の幅を有する脚部伸縮性シート状部材４、４をおむつ長手方向に沿って、このおむつ長手方向の両端を除く長手方向の中間に配設し、この脚部伸縮性シート状部材４の幅方向の外縁側部分をその長手方向に沿って連続的または断続的に固着することにより（図１に斜線で示される領域）、脚部伸縮性シート状部材４の内縁側非固着部分で使用面側に起立する立体シート部ＢS が形成されると同時に、脚部伸縮性シート状部材４の外縁側固着部分の伸縮力によりひだ状の平面シート部Ｇが形成される。この場合、脚部伸縮性シート状部材４の長手方向両端部をその全幅に渡って接着することにより、ポケット状に立体シート部ＢS を形成することができる。
【００１７】
したがって、装着状態で立体シート部ＢS が着用者の脚回りに密着し、バリヤー（障壁）になって軟便固形分の乗り換えを防止し、また、この立体シート部ＢSの長手方向両端は、吸収体３上に位置するので、排尿は透液性シート２を通過して吸収体３内に吸収される。さらに、仮に前記立体シート部ＢS を乗り越えて軟便固形分が漏れたとしても、脚部伸縮性シート状部材４の外縁側固着部分によって形成される平面シート部Ｇ、Ｇにより横漏れが確実に防止される。
【００１８】
一方、使い捨ておむつの前後端のエンドフラップ部分ＥＦ（正確には吸収体３とエンドフラップ部ＥＦに跨がって）の表面にも、ある程度の幅を有する腰部伸縮性シート状部材５、５をおむつ幅方向に沿って配設し、この腰部伸縮性シート状部材５の幅方向の外縁側部分をその長手方向に沿って連続的または断続的に固着することにより（図１に斜線で示される領域）、腰部伸縮性シート状部材５の内縁側非接着部分で使用面側に起立する腰部立体シート部ＢE を形成すると同時に、固着した腰部伸縮性シート状部材の外縁側固着部分の伸縮力により腰バンドＷが形成される。
【００１９】
したがって、装着状態で前記腰部立体シート部ＢE が着用者の腰回りに密着し、バリヤー（障壁）となって軟便固形分の乗り越えを防止し、排尿は透液性シート２を通過して吸収体３内に吸収される。さらに、腰部伸縮性シート状部材５の外縁側固着部分によって形成される腰バンドＷによっておむつのずれ落ちが防止されるとともに、肌へ密着することにより、仮に前記腰部立体シート部ＢE を乗り越えて軟便固形分が漏れたとしても、腰バンドＷで前後漏れを確実に堰き止める。
【００２０】
なお、前記腰部伸縮性シート状部材５は、紙おむつの腹側および背側の両方に必ずしも設ける必要はなく、一方側の腰部は従来のように透液性表面シート２と不透液性裏面シート１との間に介在された弾性伸縮部材とすることでもよい。
【００２１】
ところで、図７に示すように、前記脚部伸縮性シート状部材４、腰部伸縮性シート状部材５は、平面的に視て内方側に若干でも湾曲して固着するのがよい。脚部伸縮性シート状部材４で説明すると、同図のように内方側に湾曲して固着し、脚部伸縮性シート状部材４の内縁４ａ側の伸縮力を外縁側４ｂの伸縮力より大きくすることにより、立体シート部ＢS を効果的に起立させることができるとともに、紙おむつを前後方向に船形に成形させることができる。
【００２２】
本発明において使用される伸縮性シート状部材４、５としては、ウレタンゴム、天然ゴム、剛性ゴムの他、840d程度の「スパンデックス」、３Ｍ社製の「KER-2207」等の熱収縮性のものや、肌触りの点および通気性を有する点からポリエチレン、ポリウレタン、スチレンブタジエン、シリコン、ポリエステル、塩化ビニル、ネオプレンゴムの発泡体、ブリジストン社製「エバーライトＳＧＷＳ」、井上エムティービー社製「モルトプレンＲＳ」を挙げることができる。これらのうち、安価である点から発泡ポリウレタンまたは発泡ポリエチレンが好適に用いられる。また、この場合の伸縮率は、１１０〜２５０％、特に１５０〜２００％、弾性強度は５０〜４００ｇ、特に１００〜２００ｇであることが望ましい。
【００２３】
また、本発明においては、伸縮性シート状部材４、５自体が材質的に弾性伸縮性を有するものである。
【００２４】
さらに、前記伸縮性シート状部材４、５に対して、使用面側（内面側）または表面側（外面側）、さらには両面にシリコンなどにより撥水処理を行うことで、軟便の液分が浸透するのを確実に防止することができる。
【００２５】
【発明の効果】
以上詳説のとおり、本願発明によれば、組立工程数を少なくし、製作効率を向上させることができるとともに、漏れ防止効果の高い、使い捨ておむつとすることができる。
【図面の簡単な説明】
【図１】 本発明に係る使い捨ておむつの展開状態一部破断平面図である。
【図２】 その要部斜視図である。
【図３】 図１のIII −III 線矢視図である。
【図４】 図１のIV−IV線矢視図である。
【図５】 本発明に係る他の使い捨ておむつの展開状態平面図である。
【符号の説明】
１…不透液性裏面シート、２…透液性表面シート、３…吸収体、４…脚部伸縮性シート状部材、５…腰部伸縮性シート状部材、６…固着テープ、７…糸状弾性ゴム、ＢS …立体シート部、ＢE …腰部立体シート部、Ｇ…平面シート部、Ｗ…腰バンド、ＳＦ…サイドフラップ、ＥＦ…エンドフラップ。[0001]
[Industrial application fields]
The present invention relates to a disposable diaper having a three-dimensional sheet portion and a flat sheet portion.
[0002]
[Prior art]
In recent years, disposable diapers and the like provided on the market have been variously improved to prevent leakage. For example, in Japanese Patent Application Laid-Open No. 62-250201, a barrier cuff standing up around a leg of a diaper is formed, and an elastic elastic member is interposed between a top sheet and a back sheet at an outer side flap portion thereof. A double barrier is formed by arranging and applying a contraction force to the side flap portion to form a gasket cuff to prevent side leakage.
[0003]
On the other hand, in the diaper waistline, the waistline of the diaper is fitted to the wearer, and an elastic elastic member is provided in the width direction of the diaper in order to prevent leakage from the waistline part, so-called front-rear leakage. A device has been devised in which a barrier sheet standing on the use surface side is provided on the waist.
[0004]
[Problems to be solved by the invention]
However, in the case of the disposable diaper described above, it is very effective from the viewpoint of preventing the leakage of drainage. However, in terms of the manufacturing process, the elastic sheet is fixed to the barrier sheet. Thus, there are problems such as a step of forming a barrier cuff standing on the use surface side and a step of forming a gasket cuff by fixing an elastic expansion / contraction member to the side flap portion.
[0005]
Therefore, a main object of the present invention is to provide a disposable diaper that can reduce the number of assembly steps, improve the production efficiency, and has a high leakage prevention effect.
[0006]
[Means for Solving the Problems]
Among the present invention that has solved the above problems, the invention according to claim 1 is a disposable diaper in which an absorbent is interposed between the liquid-permeable top sheet, the liquid-impervious back sheet, and both the sheets.
On the liquid-permeable surface sheet on both sides of the disposable diaper, a leg stretchable sheet-like member having a predetermined width and having a material elastic elasticity in the longitudinal direction is substantially along the longitudinal direction of the diaper. It is arranged in the middle of the longitudinal direction excluding both ends in the longitudinal direction, and the widthwise outer edge side portion of the leg stretchable sheet-like member is continuously fixed along the longitudinal direction, and the leg stretchable By bonding both longitudinal ends of the sheet-like member over its entire width, a three-dimensional sheet portion having elastic elasticity is formed at the inner edge side non-fixed portion of the leg stretchable sheet-like member, and the outer edge side A flat sheet portion having elastic elasticity is formed by the fixing portion, and both longitudinal ends of the three-dimensional sheet portion are located on the absorber.
This is a disposable diaper characterized by that.
[0007]
The invention according to claim 2 is characterized in that a waist stretchable sheet-like member having a certain width is placed in the diaper width direction on the liquid-permeable surface sheet on at least one side of the front and rear ends outside the front and rear ends of the absorber. Along with the leg stretchable sheet-like member, the waist stretchable sheet-like member is continuously fixed along the longitudinal direction of the widthwise outer edge side portion of the waist stretchable sheet-like member. The disposable diaper according to claim 1 , wherein a waist three-dimensional sheet portion is formed at an inner edge side non-fixed portion of the member.
[0008]
Invention of Claim 3 is a disposable diaper of Claim 2 which formed the waist band in the outer edge side adhering part of the fixed waist elastic sheet-like member simultaneously with forming the waist solid sheet part.
[0009]
The invention according to claim 4 is any one of claims 1 to 3 , wherein at least one of the leg stretchable sheet-like member and the waist stretchable sheet-like member is bent inward and fixed in a plan view. The disposable diaper according to item 1.
[0010]
By appropriately performing water-repellent treatment on each surface or both surfaces of the leg stretchable sheet-like member and the waist stretchable sheet-like member, it is possible to reliably prevent side leakage and back-and-front leakage of soft stool liquid. .
[0011]
[Action]
In the present invention, after assembling the absorbent body between the liquid-permeable top sheet and the liquid-impervious back sheet, the leg stretchable sheet-like member having a certain width is used, By disposing on the liquid-permeable surface sheet, a three-dimensional sheet portion can be formed by the leg stretchable sheet-like member itself. Therefore, the three-dimensional sheet portion can be easily formed at a time in one process without going through a complicated assembly process as in the prior art, and the production efficiency can be greatly improved.
[0012]
Moreover, a solid sheet part and a plane sheet part can be simultaneously formed by fixing the width direction outer edge side part of the said leg part elastic sheet-like member, and making it the non-sticking of the inner edge side part. Therefore, it is possible to easily form a three-dimensional sheet portion and a flat sheet portion at a time in one process without going through a complicated assembly process as in the past, thereby greatly improving production efficiency. Can do.
[0013]
Furthermore, a waist three-dimensional sheet | seat part and a waist band can be formed by the same method also in the waist | hip | lumbar part of a disposable diaper.
[0014]
In this case, in particular, when the leg stretchable sheet-like member and the waist stretchable sheet-like member are viewed in plan, the inner sheet is bent and fixed to strengthen the stretch force on the inner edge side. While being able to stand up effectively, a paper diaper can be shape | molded in a ship shape.
[0015]
【Example】
Hereinafter, the present invention will be described in detail based on examples.
In FIG. 1, the paper diaper in the present invention is made of cotton pulp or the like, for example, rectangular or hourglass shape, between a liquid-impermeable back sheet 1 made of polyethylene or the like and a liquid-permeable surface sheet 2 made of nonwoven fabric or the like. An absorber 3 having a certain degree of rigidity is interposed. The absorbent body 3 can be wrapped with absorbent paper (not shown) to maintain its shape. The liquid-impermeable back sheet 1 extends outward from the periphery of the absorber 3 to form an hourglass shape, and the liquid-permeable surface sheet 2 is outward from the periphery of the absorber 3 correspondingly. And joined by a hot melt adhesive or the like. The liquid-impervious back sheet 1 and the liquid-permeable top sheet 2 have side flaps SF formed on both side portions in the middle of the diaper, and end flaps EF are formed on the front and rear ends of the diaper. Note that fastening tapes 6 and 6 are fixed to both sides of the back side, respectively.
[0016]
Dispose the leg stretchable sheet-like members 4 and 4 having a certain width on the surface side of the side flap portions SF on both sides of the disposable diaper (exactly across the absorber 3 and the side flap portion SF). It is arrange | positioned in the middle of the longitudinal direction except the both ends of this diaper longitudinal direction along the direction, and the outer edge side part of the width direction of this leg part elastic sheet-like member 4 is continuously or intermittently along the longitudinal direction. The solid sheet portion B S standing on the use surface side at the inner edge side non-fixed portion of the leg stretchable sheet-like member 4 is formed at the same time as the leg is stretched (region indicated by hatching in FIG. 1). A pleated flat sheet portion G is formed by the expansion and contraction force of the outer edge side fixing portion of the portion stretchable sheet-like member 4. In this case, by bonding over the longitudinal ends of the leg elastic sheet-like member 4 in its entire width, it is possible to form a bulky sheet portion B S pocket shape.
[0017]
Therefore, the bulky sheet portion B S is in close contact with the leg of the wearer in the mounted state, to prevent the transfer of loose stools solids become barrier (barrier), also at both longitudinal ends of the bulky sheet portion B S is Since it is located on the absorber 3, urination passes through the liquid-permeable sheet 2 and is absorbed into the absorber 3. Furthermore, even if the solid stool leaks over the three-dimensional sheet portion B S , the side leakage is reliably ensured by the flat sheet portions G and G formed by the outer edge side fixing portion of the leg stretchable sheet-like member 4. Is prevented.
[0018]
On the other hand, waist elastic sheet-like members 5 and 5 having a certain width are also provided on the surfaces of end flap portions EF at the front and rear ends of the disposable diaper (exactly across the absorber 3 and the end flap portion EF). By arranging along the width direction of the diaper and fixing the outer edge side portion of the waist elastic sheet-like member 5 in the width direction continuously or intermittently along the longitudinal direction (shown by hatching in FIG. 1). Region), a waist three-dimensional sheet portion BE standing on the use surface side at the inner edge side non-adhesive portion of the waist elastic sheet-like member 5, and at the same time, the elastic force of the outer edge side fixing portion of the fixed waist elastic sheet-like member As a result, the waist band W is formed.
[0019]
Therefore, the waist three-dimensional sheet portion BE adheres to the wearer's waist when worn and acts as a barrier (barrier) to prevent the passage of loose stool solids, and urination is absorbed through the liquid-permeable sheet 2. Absorbed in the body 3. Further, the waist band W formed by the outer edge side fixing portion of the waist elastic sheet-like member 5 prevents the diaper from slipping off, and by temporarily adhering to the skin, overcoming the waist solid sheet portion BE. Even if the loose stool solids leak, the waist band W reliably dams the front and rear leaks.
[0020]
The waist stretchable sheet-like member 5 does not necessarily have to be provided on both the stomach side and the back side of the paper diaper, and the waist portion on one side has a liquid-permeable top sheet 2 and a liquid-impervious back sheet as in the prior art. 1 may be an elastic stretchable member interposed between the two.
[0021]
By the way, as shown in FIG. 7, it is preferable that the leg stretchable sheet-like member 4 and the waist stretchable sheet-like member 5 are curved and fixed slightly inwardly in a plan view. In the case of the leg stretchable sheet-like member 4, as shown in the figure, it is bent and fixed inward, and the stretch force on the inner edge 4 a side of the leg stretchable sheet-like member 4 is determined from the stretch force on the outer edge side 4 b. By increasing the size, the three-dimensional sheet portion B S can be effectively erected and the paper diaper can be formed into a ship shape in the front-rear direction.
[0022]
The elastic sheet-like members 4 and 5 used in the present invention include heat-shrinkable materials such as urethane rubber, natural rubber, rigid rubber, “spandex” of about 840d, and “KER-2207” manufactured by 3M. Polyethylene, polyurethane, styrene butadiene, silicone, polyester, vinyl chloride, neoprene rubber foam, "Everlight SGWS" manufactured by Bridgestone, "Mortoprene RS" manufactured by Inoue MTB Co., Ltd. Can be mentioned. Among these, foamed polyurethane or foamed polyethylene is preferably used because it is inexpensive. In this case, it is desirable that the expansion / contraction rate is 110 to 250%, particularly 150 to 200%, and the elastic strength is 50 to 400 g, particularly 100 to 200 g.
[0023]
In the present invention , the stretchable sheet-like members 4 and 5 themselves are elastically stretchable in material .
[0024]
Further, the elastic sheet-like members 4 and 5 are subjected to water-repellent treatment with silicon or the like on the use surface side (inner surface side) or surface side (outer surface side), and further on both surfaces, so that the liquid content of soft stool is reduced. Infiltration can be reliably prevented.
[0025]
【The invention's effect】
As described in detail above, according to the present invention, the number of assembly steps can be reduced, the production efficiency can be improved, and a disposable diaper having a high leakage prevention effect can be obtained.
[Brief description of the drawings]
FIG. 1 is a partially broken plan view of a disposable diaper according to the present invention in a developed state.
FIG. 2 is a perspective view of an essential part thereof.
3 is a view taken along the line III-III in FIG.
4 is a view taken in the direction of arrows IV-IV in FIG. 1;
FIG. 5 is a developed plan view of another disposable diaper according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Liquid impervious back sheet, 2 ... Liquid permeable surface sheet, 3 ... Absorber, 4 ... Leg part elastic sheet-like member, 5 ... Lumbar elastic sheet-like member, 6 ... Adhesive tape, 7 ... String-like elasticity Rubber, B S ... solid sheet part, B E ... waist solid sheet part, G ... flat sheet part, W ... waist band, SF ... side flap, EF ... end flap.

Claims (4)

透液性表面シートと不透液性裏面シートとこれら両シートの間に吸収体が介在された使い捨ておむつにおいて、
前記使い捨ておむつの両側部における透液性表面シート上に、所定幅を有し、自体が材質的に長手方向の弾性伸縮性を有する脚部伸縮性シート状部材を略おむつ長手方向に沿って、前記長手方向の両端を除く長手方向の中間に配設するとともに、この脚部伸縮性シート状部材の幅方向外縁側部分をその長手方向に沿って連続的に固着し、かつ前記脚部伸縮性シート状部材の長手方向両端部をその全幅に渡って接着することにより、前記脚部伸縮性シート状部材の内縁側非固着部分で弾性伸縮性を有する立体シート部を形成し、並びに前記外縁側固着部分によって弾性伸縮性を有する平面シート部を形成し、前記立体シート部の長手方向両端は、前記吸収体上に位置する、
ことを特徴とする使い捨ておむつ。In a disposable diaper in which an absorbent is interposed between the liquid-permeable top sheet, the liquid-impervious back sheet, and both the sheets,
On the liquid-permeable surface sheet on both sides of the disposable diaper, a leg stretchable sheet-like member having a predetermined width and having a material elastic elasticity in the longitudinal direction is substantially along the longitudinal direction of the diaper. It is arranged in the middle of the longitudinal direction excluding both ends in the longitudinal direction, and the widthwise outer edge side portion of the leg stretchable sheet-like member is continuously fixed along the longitudinal direction, and the leg stretchable By bonding both longitudinal ends of the sheet-like member over its entire width, a three-dimensional sheet portion having elastic elasticity is formed at the inner edge side non-fixed portion of the leg stretchable sheet-like member, and the outer edge side A flat sheet portion having elastic elasticity is formed by the fixing portion, and both longitudinal ends of the three-dimensional sheet portion are located on the absorber.
A disposable diaper characterized by that. 前記吸収体の前後端より外方の前後端部の少なくとも一方側における透液性表面シート上に、ある程度の幅を有する腰部伸縮性シート状部材をおむつ幅方向に沿って、前記脚部伸縮性シート状部材から離れて配設するとともに、この腰部伸縮性シート状部材の幅方向の外縁側部分をその長手方向に沿って連続的に固着し、腰部伸縮性シート状部材の内縁側非固着部分で腰部立体シート部を形成した請求項１記載の使い捨ておむつ。On the liquid-permeable surface sheet on at least one side of the front and rear ends outside the front and rear ends of the absorbent body, a leg stretchable sheet member having a certain width is provided along the diaper width direction. The outer edge side portion in the width direction of the waist elastic sheet-like member is continuously fixed along the longitudinal direction of the waist elastic sheet-like member while being spaced apart from the sheet-like member. The disposable diaper according to claim 1 , wherein a waist three-dimensional sheet portion is formed. 腰部立体シート部を形成すると同時に、固着した腰部伸縮性シート状部材の外縁側固着部分で腰バンドを形成した請求項２記載の使い捨ておむつ。The disposable diaper according to claim 2 , wherein a waist band is formed at the outer edge side fixing portion of the fixed waist elastic sheet-like member at the same time as forming the waist three-dimensional sheet portion. 脚部伸縮性シート状部材および腰部伸縮性シート状部材のうち少なくとも一方を平面的に視て、内方側に湾曲して固着した請求項１〜３のいずれか１項に記載の使い捨ておむつ。The disposable diaper according to any one of claims 1 to 3 , wherein at least one of the leg stretchable sheet-like member and the waist stretchable sheet-like member is bent inward and fixed in a plan view.
JP33143393A 1993-12-27 1993-12-27 Disposable diapers Expired - Lifetime JP3773550B2 (en)

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