JP5452910B2 - Absorbent articles - Google Patents

Description

Translated fromJapanese

本発明は、生理用ナプキンや失禁パッド等の吸収性物品に関する。  The present invention relates to absorbent articles such as sanitary napkins and incontinence pads.

臀部の溝に密着させて経血等の体液の漏れを防止するため、例えば、特許文献１には、吸収体上に長手方向に長い中高のクッション層（中高部）を介在させた吸収性物品が開示されている。
しかし、装着者の体の動きにより、吸収性物品の前方部又は後方部に中高部を変形させる力が発生すると、この変形させる力が後方部又は前方部へ伝わり、吸収性物品全体が変形し、ヨレを生じていた。In order to prevent leakage of bodily fluids such as menstrual blood by being brought into close contact with the groove of the buttocks, for example,Patent Document 1 discloses an absorbent article in which a middle-high cushion layer (middle-high part) long in the longitudinal direction is interposed on the absorbent body Is disclosed.
However, when a force that deforms the middle / high part is generated in the front part or the rear part of the absorbent article due to the movement of the wearer's body, the deforming force is transmitted to the rear part or the front part, and the entire absorbent article is deformed. , Was producing a twist.

吸収性物品の前方部又は後方部の何れか一方に中高部を変形させる力が発生しても、その変形させる力が他方に伝わらないようにするために、例えば、特許文献２には、中高部が、吸収性物品の前方部及び後方部に別個に設けられた前方中高部と後方中高部とからなり、前方中高部と後方中高部との間に、前記前方部又は前記後方部の変形を、互いに影響させない折り曲げ起点が設けられている吸収性物品が開示されている。
しかしながら、前方中高部と後方中高部との間に折り曲げ起点を設けると、折り曲げ起点が隙間となり、その隙間の部分において、中高部を臀部の溝に密着することができず、経血等の体液の漏れを防止することが困難となる。In order to prevent the deforming force from being transmitted to the other even if a force that deforms the middle / high part occurs in either the front part or the rear part of the absorbent article, The front part is composed of a front middle high part and a rear middle high part separately provided in the front part and the rear part of the absorbent article, and the front part or the rear part is deformed between the front middle high part and the rear middle high part. There is disclosed an absorbent article provided with a bending start point that does not affect the other.
However, if a bending start point is provided between the front middle high part and the rear middle high part, the bending start point becomes a gap, and the middle high part cannot be closely attached to the groove of the buttocks at the gap portion, and body fluid such as menstrual blood It becomes difficult to prevent leakage.

特開２００３−２４３７２号公報JP 2003-24372 A特開２００６−２３９１６２号公報JP 2006-239162 A

従って、本発明の目的は、前方中高部と後方中高部とからなる中高部を有するにもかかわらず、装着時に、前方中高部と後方中高部との間に隙間を生じず、臀部の溝に密着させて経血等の体液の漏れを防止し、フィット性の高い吸収性物品を提供することにある  Accordingly, the object of the present invention is to provide a groove in the heel part without creating a gap between the front middle high part and the rear middle high part, even when having a middle high part made up of the front middle high part and the rear middle high part. It is to provide an absorbent article having a high fit by preventing leakage of bodily fluids such as menstrual blood by closely adhering

本発明は、肌当接面を形成する表面シート、非肌当接面を形成する裏面シート及び両シート間に介在する吸収体を具備する吸収性物品であって、前記吸収体は、前記吸収性物品の前方部及び後方部における肌当接面側に、該吸収体より幅狭で且つ肌当接面側に凸状に突出する前方中高部及び後方中高部を有し、該前方中高部は装着者の体液排泄部に当接される排泄部領域に形成されており、前記吸収性物品の長手方向に延びる中心線に線対称的に設けられる一対の前方溝が、前記前方中高部の側部に沿って形成され且つ前記吸収性物品の幅方向外方に凸状に形成されており、前記前方中高部と前記後方中高部との間に、前記吸収性物品の幅方向に延び且つ該後方中高部に向って凸状に形成された中間溝が形成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。  The present invention is an absorbent article comprising a top sheet that forms a skin contact surface, a back sheet that forms a non-skin contact surface, and an absorbent body interposed between both sheets, wherein the absorbent body is the absorbent. The front and rear portions of the article have a front middle high portion and a rear middle high portion that are narrower than the absorbent body and protrude in a convex manner on the skin contact surface side. Is formed in the excretion part region that is in contact with the body fluid excretion part of the wearer, and a pair of front grooves provided symmetrically with respect to the center line extending in the longitudinal direction of the absorbent article are Formed along the side and convex outward in the width direction of the absorbent article, and extends in the width direction of the absorbent article between the front middle high part and the rear middle high part, and Provided is an absorbent article in which an intermediate groove formed in a convex shape toward the rear middle-high part is formed It is obtained by achieving the above object by the.

本発明の吸収性物品によれば、吸収性物品の前方部又は後方部の何れか一方に中高部を変形させる力が発生しても、その変形させる力が他方に伝わらず、装着時に前方中高部と後方中高部との間に隙間を生じないように、臀部の溝への密着性を高め、経血等の体液の漏れ防止性を高め、フィット性を高めることができる。  According to the absorbent article of the present invention, even if a force for deforming the middle / high part is generated in one of the front part or the rear part of the absorbent article, the deforming force is not transmitted to the other, and the front / middle / high part is not worn. In order not to create a gap between the upper part and the rear middle-high part, it is possible to improve the adhesion of the buttocks to the groove, enhance the leakage prevention of body fluid such as menstrual blood, and improve the fit.

以下、本発明の吸収性物品である生理用ナプキンの好ましい一実施形態について、図１〜図４に基づいて説明する。  Hereinafter, a preferred embodiment of a sanitary napkin that is an absorbent article of the present invention will be described with reference to FIGS.

本実施形態の生理用ナプキン１は、図１に示すように、生理用ナプキン１の長手方向に延びる中心線ＣＬに対して左右対称に形成されている。
従って、以下には、主として生理用ナプキン１の右側の構成について詳述し、左側の構成については、適宜説明を省略し、右側の構成要素に対応する左側の構成要素は、符号にダッシュ(’)を付してある。As shown in FIG. 1, thesanitary napkin 1 of the present embodiment is formed symmetrically with respect to a center line CL extending in the longitudinal direction of thesanitary napkin 1.
Therefore, in the following, mainly the configuration on the right side of thesanitary napkin 1 will be described in detail, the description on the left configuration will be omitted as appropriate, and the left component corresponding to the right component will be denoted by a dash (' ) Is attached.

本実施形態の吸収性物品（生理用ナプキン）１は、図１〜図４に示すように、肌当接面を形成する表面シート２、非肌当接面を形成する裏面シート３及び両シート２，３間に介在する吸収体４を有する実質的に縦長のものである。
吸収体４は、図１及び図２に示すように、生理用ナプキン１の前方部ｂ及び後方部ｃにおける肌当接面側に、吸収体４より幅狭で且つ肌当接面側に凸状に突出する前方中高部４１及び後方中高部４２を有し、前方中高部４１は装着者の体液排泄部に当接される排泄部領域ａに形成されている。The absorbent article (sanitary napkin) 1 according to the present embodiment includes a top sheet 2 that forms a skin contact surface, a back sheet 3 that forms a non-skin contact surface, and both sheets, as shown in FIGS. It is substantially vertically long and has an absorber 4 interposed between two and three.
As shown in FIGS. 1 and 2, the absorbent body 4 is narrower than the absorbent body 4 and protrudes toward the skin contact surface side on the skin contact surface side of the front part b and the rear part c of thesanitary napkin 1. The front middle-high part 41 and the rear middle-high part 42 which protrude in the shape are formed in the excretion part area | region a contact | abutted to a wearer's bodily fluid excretion part.

生理用ナプキン１は、主に夜用の生理用ナプキンとして用いられるため、図５に示すように、後方部ｃの幅方向（ＣＬ線が延びる方向と直交する方向）両外方には、一対の後方フラップ３２，３２が形成されている。後方フラップ３２は、広げたまま、ショーツと装着者の臀部の間に配置され、臀部の一部又は全体を覆うように配置されることで、装着者の肌を伝わり後ろ側に漏れた液が下着に伝わるのを効果的に防止する。後方フラップ３２は、裏面シート３及び表面シート２の一方を、後方部ｃの幅方向（ＣＬ線が延びる方向と直交する方向）両外方に延在して形成されたり、裏面シート３と表面シート２とを共に延在して形成されたり、該両シート２，３の間に、薄い吸収シートを配置して形成される。後方フラップ３２は、後方部ｃの側方途中のみ、後方部ｃのさらに後ろ側に円弧状に形成してもかまわない。後方フラップ３２の形状は、弧状や、矩形状、台形状などがある。後方フラップ３２は、その厚みが０．２〜２．０ｍｍであり、その幅が１２０〜２００ｍｍであり、その長さが１２０〜２３０ｍｍであることが好ましい。  Since thesanitary napkin 1 is mainly used as a sanitary napkin for night use, as shown in FIG. Rear flaps 32, 32 are formed. The rear flap 32 is placed between the shorts and the wearer's buttocks while being unfolded, and is disposed so as to cover a part or the whole of the buttocks so that the liquid leaked to the back side through the wearer's skin. Effectively prevent transmission to underwear. The rear flap 32 is formed by extending one of the back sheet 3 and the top sheet 2 outward in the width direction of the back part c (direction perpendicular to the direction in which the CL line extends), or The sheet 2 is formed so as to extend together, or a thin absorbent sheet is disposed between the sheets 2 and 3. The rear flap 32 may be formed in an arc shape on the further rear side of the rear portion c only in the middle of the rear portion c. The shape of the rear flap 32 includes an arc shape, a rectangular shape, a trapezoidal shape, and the like. The rear flap 32 preferably has a thickness of 0.2 to 2.0 mm, a width of 120 to 200 mm, and a length of 120 to 230 mm.

一対の後方フラップ３２それぞれの非肌当接面には、下着にフラップを広げたまま固定する固定部８が一つずつ存在している。固定部８は、図５に示すように、後方内溝６３の最後方先端部６３ｃに接し、且つ長手方向に延びる中心線ＣＬに垂直な仮想直線ＩＬ上に配置されている。固定部８としては、ホットメルト接着剤、メカニカル接合材、その他公知の物品用接合剤が使用できる。固定部８の形状は、縦長の矩形状、四角形、円形、楕円などが挙げられ、固定性の観点から縦長の矩形状が好ましい。図５に示すように、固定部８は、生理用ナプキン１の左右に一個ずつ配されているが、この一個の固定部８とは、目視で一個と認められる程度をいい、便宜的に、固定部８内にドット、線状の中抜きがあってもかまわない。生理用ナプキン１の左右の一方に２個以上固定部８を形成すると、固定部８同士の接合位置が、装着時に下着とうまく接合され難く、固定部８間で皺やずれが生じやすく、スッキリとするまで、装着者は、何度も固定のし直しが必要とされ好ましくない。生理用ナプキン１の左右の一方に固定部８を一個とすることで、このような不便は生じない。図５に示すように、仮想直線ＩＬと、固定部８の長手方向（ＣＬ方向）の前方部ｂ寄りの前端部８ｂとの間隔ｌは、装着中の動きによって生じる後部フラップ部３２のよれや捲れの影響を受けにくく、後部フラップ３２の広げた状態を安定的に維持できる観点から、０〜１５ｍｍの範囲が好ましい。  On each non-skin contact surface of each of the pair of rear flaps 32, there is one fixing portion 8 for fixing the underwear with the flaps spread. As shown in FIG. 5, the fixing portion 8 is disposed on a virtual straight line IL that is in contact with therearmost tip portion 63 c of the rearinner groove 63 and is perpendicular to the center line CL extending in the longitudinal direction. As the fixing portion 8, a hot melt adhesive, a mechanical bonding material, and other known bonding agents for articles can be used. Examples of the shape of the fixing portion 8 include a vertically long rectangular shape, a quadrangular shape, a circular shape, and an oval shape, and a vertically long rectangular shape is preferable from the viewpoint of fixing property. As shown in FIG. 5, the fixing portions 8 are arranged one by one on the left and right sides of thesanitary napkin 1, but this one fixing portion 8 refers to a degree that is visually recognized as one, for convenience. There may be dots or linear hollows in the fixed portion 8. When two or more fixing portions 8 are formed on one of the left and right sides of thesanitary napkin 1, the bonding positions of the fixing portions 8 are not easily bonded to the underwear at the time of wearing, and the wrinkles and displacement between the fixing portions 8 are likely to occur. Until then, the wearer needs to re-fix it many times, which is not preferable. Such inconvenience does not occur by using one fixing portion 8 on either the left or right side of thesanitary napkin 1. As shown in FIG. 5, the interval l between the imaginary straight line IL and thefront end 8b near the front portion b in the longitudinal direction (CL direction) of the fixed portion 8 depends on the rear flap portion 32 caused by the movement during mounting. The range of 0 to 15 mm is preferable from the viewpoint of being less susceptible to dripping and capable of stably maintaining the expanded state of the rear flap 32.

生理用ナプキン１には、生理用ナプキン１の長手方向に延びる中心線（ＣＬ線）に線対称的に設けられる一対の前方溝６１，６１’が、前方中高部４１の側部４１ａ，４１ａ’に沿って形成され且つ生理用ナプキン１の幅方向（ＣＬ線が延びる方向と直交する方向）に凸状に形成されている。
生理用ナプキン１には、前方中高部４１と後方中高部４２との間に、生理用ナプキン１の幅方向（ＣＬ線が延びる方向と直交する方向）に延び且つ後方中高部４２に向って凸状に形成された中間溝６２が形成されている。Thesanitary napkin 1 has a pair offront grooves 61 and 61 ′ which are provided symmetrically with respect to a center line (CL line) extending in the longitudinal direction of thesanitary napkin 1, and theside portions 41 a and 41 a ′ of the front middle andhigh portion 41. And is formed in a convex shape in the width direction of the sanitary napkin 1 (direction perpendicular to the direction in which the CL line extends).
Thesanitary napkin 1 extends in the width direction of the sanitary napkin 1 (direction perpendicular to the direction in which the CL line extends) between the front middlehigh portion 41 and the rear middlehigh portion 42 and protrudes toward the rear middlehigh portion 42. Anintermediate groove 62 formed in a shape is formed.

ここで、「排泄部領域ａ」とは、装着者の体液排泄部に当接される領域を意味する。本実施形態の生理用ナプキン１のように、ウイング部３１，３１’を有する吸収性物品における排泄部領域ａは、通常、吸収性物品（生理用ナプキン１）の長手方向においてウイング部３１，３１’を有する領域である。ウイング部３１，３１’を有しない吸収性物品における排泄部領域ａは、生理用ナプキンが個装形態に折り畳まれた際に生じる製品長手方向（ＣＬ方向）に直交する２つの折り線について、生理用ナプキンの長手方向の前端から数えて第１折り線と第２折り線とに囲まれた領域と同じか又は狭い領域を言う。また、生理用ナプキンの製品長が長く３つの折り線が生じる場合には、製品の長手方向の前端から数えて第１折り線と第２折り線に囲まれた領域あるいは製品の長手方向の前端から数えて第１折り線と第３折り線とに囲まれた領域か又は狭い領域を言う。  Here, the “excretion area a” means an area in contact with the body fluid excretion part of the wearer. Like thesanitary napkin 1 of this embodiment, the excretion part area | region a in the absorbent article which haswing parts 31 and 31 'normally has thewing parts 31 and 31 in the longitudinal direction of an absorbent article (sanitary napkin 1). It is an area with '. The excretion part area | region a in the absorbent article which does not have thewing parts 31 and 31 'is physiological about the two fold lines orthogonal to the product longitudinal direction (CL direction) produced when the sanitary napkin is folded into the individual packaging form. A region that is the same as or narrower than the region surrounded by the first fold line and the second fold line, counted from the front end in the longitudinal direction of the napkin for use. Further, when the product length of the sanitary napkin is long and three fold lines are generated, the area surrounded by the first fold line and the second fold line or the front end in the longitudinal direction of the product is counted from the front end in the longitudinal direction of the product. A region surrounded by the first fold line and the third fold line or a narrow region is counted.

また、「前方部ｂ」とは、本実施形態の生理用ナプキン１のように、ウイング部３１，３１’を有する吸収性物品においては、ウイング部３１，３１’の長手方向（ＣＬ方向：ＣＬ線の延びる方向）の後端付近よりも生理用ナプキン１の長手方向（ＣＬ方向）の前方の領域を言い、「後方部ｃ」とは、ウイング部３１，３１’の長手方向（ＣＬ方向：ＣＬ線の延びる方向）の後端付近よりも生理用ナプキン１の長手方向（ＣＬ方向）の後方の領域を言う。ウイング部３１，３１’を有しない吸収性物品においては、「前方部ｂ」とは、生理用ナプキン１が個装形態に折り畳まれた際に生じる製品長手方向（ＣＬ方向）に直交する折り線の中で、生理用ナプキン１の長手方向（ＣＬ方向）の前端から数えて第２番目の折り線付近よりも生理用ナプキン１の長手方向（ＣＬ方向）の前方の領域を言い、「後方部ｃ」とは、第２番目の折り線付近よりも生理用ナプキン１の長手方向（ＣＬ方向）の後方の領域を言う。  Moreover, in the absorbent article which haswing parts 31 and 31 'like thesanitary napkin 1 of this embodiment, the "front part b" is the longitudinal direction (CL direction: CL ofwing parts 31 and 31'). The area in the longitudinal direction (CL direction) of thesanitary napkin 1 with respect to the vicinity of the rear end of the line extending direction), and the “rear part c” means the longitudinal direction of thewing parts 31, 31 ′ (CL direction: It refers to the area behind the longitudinal direction (CL direction) of thesanitary napkin 1 from the vicinity of the rear end of the CL line extending direction. In the absorbent article which does not have thewing parts 31 and 31 ', the "front part b" is a fold line perpendicular to the product longitudinal direction (CL direction) generated when thesanitary napkin 1 is folded into an individual form. The area in front of thesanitary napkin 1 in the longitudinal direction (CL direction) relative to the second fold line, counting from the front end in the longitudinal direction (CL direction) of thesanitary napkin 1, “c” means a region behind thesanitary napkin 1 in the longitudinal direction (CL direction) from the vicinity of the second folding line.

本実施形態の生理用ナプキン１について、詳述すると、本実施形態の生理用ナプキン１は、図１〜図２に示すように、液透過性の表面シート２、液不透過性又は撥水性の裏面シート３及び吸収体４を具備している。表面シート２及び裏面シート３それぞれは、吸収体４よりも大きい外径寸法を有している。表面シート２及び裏面シート３は、生理用ナプキン１の長手方向の両端部において、吸収体４の長手方向の両端部から延出し、その延出部は互いにヒートシール等により接合され、表面シート２は、吸収体４の長手方向の両側部で吸収体４を包むように折り返されて裏面シート３にヒートシール等により接合されて吸収性本体５を形成している。生理用ナプキン１は、吸収性本体５の長手方向の両側部に防漏壁７を有している。本実施形態の防漏壁７は、いわゆるＴ字状の防漏壁であるが、ループ状の防漏壁であってもよい。本実施形態の生理用ナプキン１は、その長手方向における中央部より前寄りの位置に一対のウイング部３１を有している。ウイング部３１は、裏面シート３を延出することにより形成されており、その裏面には、該ウイング部３１を、ショーツのクロッチ部の非肌対向面に固定するための粘着部（不図示）が形成されている。これらの構成は、従来品と同じである。  Thesanitary napkin 1 according to this embodiment will be described in detail. Thesanitary napkin 1 according to this embodiment includes a liquid-permeable surface sheet 2, a liquid-impermeable or water-repellent material as shown in FIGS. The back sheet 3 and the absorber 4 are provided. Each of the top sheet 2 and the back sheet 3 has a larger outer diameter than the absorber 4. The top sheet 2 and the back sheet 3 are extended from both ends in the longitudinal direction of the absorbent body 4 at both ends in the longitudinal direction of thesanitary napkin 1, and the extended portions are joined to each other by heat sealing or the like. Are folded so as to wrap the absorbent body 4 at both side portions in the longitudinal direction of the absorbent body 4 and joined to the back sheet 3 by heat sealing or the like to form the absorbentmain body 5. Thesanitary napkin 1 has leak-proof walls 7 on both sides in the longitudinal direction of the absorbentmain body 5. The leak-proof wall 7 of the present embodiment is a so-called T-shaped leak-proof wall, but may be a loop-shaped leak-proof wall. Thesanitary napkin 1 of the present embodiment has a pair ofwing portions 31 at a position closer to the front than the central portion in the longitudinal direction. Thewing part 31 is formed by extending the back sheet 3, and an adhesive part (not shown) for fixing thewing part 31 to the non-skin facing surface of the crotch part of the shorts is formed on the back surface. Is formed. These configurations are the same as the conventional products.

次いで、本実施形態の生理用ナプキン１の吸収体４について説明する。
本実施形態の生理用ナプキン１では、図１及び図２に示すように、生理用ナプキン１の前方部ｂ及び後方部ｃにおける吸収体４の肌当接面側に、吸収体４より幅狭で且つ肌当接面側に凸状に突出する前方中高部４１及び後方中高部４２を有している。具体的には、吸収体４は、その上面であって、生理用ナプキン１の前方部ｂ及び後方部ｃに、別個に設けられた前方中高部４１及び後方中高部４２を有している。前方中高部４１及び後方中高部４２は、吸収体４の上方に凸状の形状である。Next, the absorbent body 4 of thesanitary napkin 1 according to this embodiment will be described.
In thesanitary napkin 1 of the present embodiment, as shown in FIGS. 1 and 2, the width of thesanitary napkin 1 is narrower than the absorbent body 4 on the skin contact surface side of the absorbent body 4 at the front part b and the rear part c. And it has the front middlehigh part 41 and the back middlehigh part 42 which protrude in the convex shape at the skin contact surface side. Specifically, the absorbent body 4 has a front middle-high part 41 and a rear middle-high part 42 provided separately on the front part b and the rear part c of thesanitary napkin 1 on the upper surface thereof. The front middle /high part 41 and the rear middle /high part 42 have a convex shape above the absorber 4.

前方中高部４１は、吸収体４より幅が狭いものであり、図１に示すように、装着者の体液排泄部に当接される排泄部領域ａであって、吸収体４の幅方向（ＣＬ方向に直交する方向）の略中央に形成されている。前方中高部４１の形状は、平面視して、その長手方向の両側部４１ａが、それぞれ生理用ナプキン１の幅方向（ＣＬ方向に直交する方向）に凸状の曲線形状である。また、前方中高部４１の長手方向の両端部４１ｂ１，４１ｂ２も同様に、生理用ナプキン１の長手方向（ＣＬ方向）に凸状の曲線形状である。前方中高部４１は、図１に示すように、後述する一対の前方溝６１と中間溝６２とで囲まれている。  The front middle-high part 41 is narrower than the absorbent body 4, and as shown in FIG. 1, is an excretion part region a that is in contact with the body fluid excretion part of the wearer. (The direction perpendicular to the CL direction). The shape of the front middlehigh portion 41 is a curved shape in which bothside portions 41a in the longitudinal direction are convex in the width direction (direction perpendicular to the CL direction) of thesanitary napkin 1 in plan view. Similarly, both end portions 41b1 and 41b2 in the longitudinal direction of the front middle andhigh portion 41 have a curved shape that is convex in the longitudinal direction (CL direction) of thesanitary napkin 1. As shown in FIG. 1, the front middle /high portion 41 is surrounded by a pair offront grooves 61 and anintermediate groove 62 described later.

後方中高部４２は、吸収体４より幅が狭いものであり、図１に示すように、生理用ナプキン１の後方部ｃであって、吸収体４の幅方向（ＣＬ方向に直交する方向）の略中央に形成されている。本実施形態の生理用ナプキン１の後方中高部４２の形状は、平面視して、生理用ナプキン１の長手方向（ＣＬ方向）の後方に向かって先細り形状に形成されている。後方中高部４２の形状は、平面視して、その長手方向の両側部４２ａは、それぞれ生理用ナプキン１の幅方向（ＣＬ方向に直交する方向）に凸状の曲線形状であるが、前方中高部４１の両側部４１ａの形状に比べて、緩やかな凸状である。後方中高部４２は、図１に示すように、後述する一対の後方内溝６３と中間溝６２とで囲まれている。  The rear middle-high part 42 is narrower than the absorbent body 4 and, as shown in FIG. 1, is the rear part c of thesanitary napkin 1, and the width direction of the absorbent body 4 (direction perpendicular to the CL direction). It is formed in the approximate center. The shape of the rear middlehigh portion 42 of thesanitary napkin 1 of the present embodiment is formed in a tapered shape toward the rear in the longitudinal direction (CL direction) of thesanitary napkin 1 in plan view. The shape of the rear middlehigh portion 42 is a plan view, and bothside portions 42a in the longitudinal direction are curved shapes that are convex in the width direction of the sanitary napkin 1 (direction perpendicular to the CL direction). Compared to the shape of bothside portions 41a of theportion 41, it is a gentle convex shape. As shown in FIG. 1, the rear middlehigh portion 42 is surrounded by a pair of rearinner grooves 63 and anintermediate groove 62 described later.

本実施形態の生理用ナプキン１では、図１及び図２に示すように、吸収体４と表面シート２とを接合するエンボス溝を有している。エンボス溝は、深く形成された部分とそれよりも若干浅く形成された部分とが交互に配置されて連続線を形成している。エンボス溝の深い部分は、図１においては、黒く塗りつぶした線で示されている。本実施形態の生理用ナプキン１では、エンボス溝は、前方溝６１、中間溝６２、後方内溝６３及び後方外溝６４を有している。  Thesanitary napkin 1 of the present embodiment has an embossed groove for joining the absorbent body 4 and the top sheet 2 as shown in FIGS. 1 and 2. In the embossed grooves, deeply formed portions and portions formed slightly shallower are alternately arranged to form a continuous line. The deep portion of the embossed groove is shown by a black line in FIG. In thesanitary napkin 1 of this embodiment, the embossed groove has afront groove 61, anintermediate groove 62, a rearinner groove 63, and a rearouter groove 64.

前方溝６１は、図１に示すように、生理用ナプキン１の長手方向に延びる中心線（ＣＬ線）に線対称的に一対設けられている。一対の前方溝６１は、前方中高部４１の側部４１ａ，４１ａ’に沿って形成され且つ生理用ナプキン１の幅方向（ＣＬ方向に直交する方向）に凸状に形成されている。本実施形態の生理用ナプキン１の前方溝６１の形状は、凸状の曲線であり、図３に示すように、前方中高部４１の側部と該前方溝の間隔は、最も広い部分ｌ１において、その距離が、６〜１０ｍｍであり、最も狭い部分ｌ２において、その距離が、２〜５．５ｍｍである。本実施形態の生理用ナプキン１の前方溝６１は、図１に示すように、前方中高部４１の長手方向（ＣＬ方向）の前方端部４１ｂ１の近傍に、生理用ナプキン１の内側に括れた一対の括れ部６１ｂ１を有し、後方端部４１ｂ２の近傍に、生理用ナプキン１の内側に括れた一対の括れ部６１ｂ２を有しており、前方中高部４１からの距離が最も広い部分ｌ１で長手方向（ＣＬ方向）に対象形をなしている。括れ部６１ｂ１と括れ部６１ｂ２との間の長さｌ３は、４０〜８０ｍｍであり、このように形成された凸状の曲線形状によって、装着時に隆起する。なお、前方溝６１の溝幅は、１．５ｍｍ〜６ｍｍであると、上記効果を奏しやすい。  As shown in FIG. 1, a pair offront grooves 61 are provided symmetrically with respect to a center line (CL line) extending in the longitudinal direction of thesanitary napkin 1. The pair offront grooves 61 is formed along theside portions 41 a and 41 a ′ of the front middle andhigh portion 41 and is formed in a convex shape in the width direction of the sanitary napkin 1 (direction perpendicular to the CL direction). The shape of thefront groove 61 of thesanitary napkin 1 of the present embodiment is a convex curve, and as shown in FIG. 3, the distance between the side portion of the front middlehigh portion 41 and the front groove is at the widest portion l1. The distance is 6 to 10 mm, and the distance is 2 to 5.5 mm in thenarrowest portion 12. As shown in FIG. 1, thefront groove 61 of thesanitary napkin 1 according to the present embodiment is confined inside thesanitary napkin 1 in the vicinity of the front end portion 41b 1 in the longitudinal direction (CL direction) of the front middle-high portion 41. It has a pair of constricted portions 61b1, a pair of constricted portions 61b2 confined inside thesanitary napkin 1 in the vicinity of the rear end portion 41b2, and a portion l1 having the widest distance from the front middle-high portion 41. The target shape is formed in the longitudinal direction (CL direction). The length l3 between the constricted portion 61b1 and the constricted portion 61b2 is 40 to 80 mm, and the convex curved shape formed in this way bulges when attached. In addition, the said groove | channel width of the front groove |channel 61 is easy to have the said effect in it being 1.5 mm-6 mm.

中間溝６２は、図１及び図２に示すように、生理用ナプキン１の前方中高部４１と後方中高部４２との間に形成されている。中間溝６２の形状は、平面視して、図１に示すように、生理用ナプキン１の幅方向（ＣＬ線が延びる方向と直交する方向）に延び且つ後方中高部４２に向って凸状に形成されている。本実施形態の生理用ナプキン１の中間溝６２の形状は、凸状の曲線であり、中間溝６２の溝幅は、１.５ｍｍ〜６ｍｍである。本実施形態の生理用ナプキン１においては、装着時に前方中高部４１と後方中高部４２との間に隙間を生じない観点から、図３に示すように、前方中高部４１と後方中高部４２との間の間隔ｄ１が、１５ｍｍ〜３０ｍｍであって、中間溝６２の長手方向（ＣＬ方向）の長さｌ４が、１０ｍｍ〜２０ｍｍであって、中間溝６２の凸状の頂部と前方中高部４１の中間溝６２寄りの端部の間隔ｄ２が、１０ｍｍ〜１５ｍｍであることを同時に満たすことが好ましい。  As shown in FIGS. 1 and 2, theintermediate groove 62 is formed between the front middlehigh portion 41 and the rear middlehigh portion 42 of thesanitary napkin 1. As shown in FIG. 1, the shape of theintermediate groove 62 extends in the width direction of the sanitary napkin 1 (direction perpendicular to the direction in which the CL line extends) and is convex toward the rear middlehigh portion 42 as seen in a plan view. Is formed. The shape of theintermediate groove 62 of thesanitary napkin 1 of this embodiment is a convex curve, and the groove width of theintermediate groove 62 is 1.5 mm to 6 mm. In thesanitary napkin 1 of the present embodiment, as shown in FIG. 3, the front middlehigh portion 41 and the rear middlehigh portion 42, from the viewpoint that no gap is generated between the front middlehigh portion 41 and the rear middlehigh portion 42 when worn. The distance d1 is 15 mm to 30 mm, thelength 14 in the longitudinal direction (CL direction) of theintermediate groove 62 is 10 mm to 20 mm, and the convex top of theintermediate groove 62 and the front middlehigh part 41 It is preferable to satisfy simultaneously that the distance d2 between the end portions near theintermediate groove 62 is 10 mm to 15 mm.

本実施形態の生理用ナプキン１には、後方内溝６３が、図１に示すように、生理用ナプキン１の長手方向に延びる中心線（ＣＬ線）に線対称的に一対設けられている。本実施形態の生理用ナプキン１の後方内溝６３は、先細り形状に形成された後方中高部４２の側部４２ａに沿って形成されている。生理用ナプキン１においては、図１に示すように、生理用ナプキン１の右側の後方内溝６３と左側の後方内溝６３’との連結部である最後方先端部６３ｃが長手方向（ＣＬ方向）の外方に向かって凸に形成されている。後方内溝６３の溝幅は、１．５ｍｍ〜６ｍｍである。  As shown in FIG. 1, thesanitary napkin 1 of the present embodiment is provided with a pair of rearinner grooves 63 symmetrically with respect to a center line (CL line) extending in the longitudinal direction of thesanitary napkin 1. The rearinner groove 63 of thesanitary napkin 1 of the present embodiment is formed along theside part 42a of the rear middlehigh part 42 formed in a tapered shape. In thesanitary napkin 1, as shown in FIG. 1, the rearmostdistal end portion 63c, which is a connecting portion between the right rearinner groove 63 and the left rearinner groove 63 ′ of thesanitary napkin 1, has a longitudinal direction (CL direction). ) Is formed so as to protrude outward. The groove width of the rearinner groove 63 is 1.5 mm to 6 mm.

本実施形態の生理用ナプキン１には、後方外溝６４が、図１に示すように、生理用ナプキン１の中心線（ＣＬ線）に線対称的に一対設けられている。本実施形態の生理用ナプキン１の後方外溝６４は、後方内溝６３より生理用ナプキン１の幅方向（ＣＬ線が延びる方向と直交する方向）の外方に形成されている。後方外溝６４は、前方溝６１と繋がっており、生理用ナプキン１の長手方向（ＣＬ方向）の前端部から後端部に亘って、連続したエンボス溝を形成している。生理用ナプキン１においては、図１，図５に示すように、一対の後方外溝６４，６４’と一対の前方溝６１，６１’とが繋がって全周にわたる全周溝が形成されている。前述のように、後方外溝６４は、前方溝６１と繋がっているが、図１に示すように、中間溝６２及び後方内溝６３とは繋がっていない。本実施形態の生理用ナプキン１の後方外溝６４の形状は、生理用ナプキン１の幅方向（ＣＬ方向に直交する方向）に凸状の曲線であり、後方外溝６４の溝幅は、１．５ｍｍ〜６ｍｍである。  Thesanitary napkin 1 of the present embodiment is provided with a pair of rearouter grooves 64 symmetrically with respect to the center line (CL line) of thesanitary napkin 1 as shown in FIG. The rearouter groove 64 of thesanitary napkin 1 according to the present embodiment is formed outward of the rearinner groove 63 in the width direction of the sanitary napkin 1 (direction perpendicular to the direction in which the CL line extends). The rearouter groove 64 is connected to thefront groove 61, and forms a continuous emboss groove from the front end portion to the rear end portion in the longitudinal direction (CL direction) of thesanitary napkin 1. In thesanitary napkin 1, as shown in FIGS. 1 and 5, a pair of rearouter grooves 64, 64 ′ and a pair offront grooves 61, 61 ′ are connected to form a whole circumferential groove. . As described above, the rearouter groove 64 is connected to thefront groove 61, but is not connected to theintermediate groove 62 and the rearinner groove 63 as shown in FIG. 1. The shape of the rearouter groove 64 of thesanitary napkin 1 according to the present embodiment is a curve that is convex in the width direction of the sanitary napkin 1 (direction orthogonal to the CL direction). The groove width of the rearouter groove 64 is 1 .5 mm to 6 mm.

本実施形態の生理用ナプキン１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、上記吸収体４及び一対の防漏壁７としては、通常、生理用ナプキン等の吸収性物品に用いられるものであれば、特に制限なく用いることができる。例えば、表面シート２としては、液透過性の不織布や、開孔フィルム等を用いることができ、裏面シート３としては、樹脂フィルムや樹脂フィルムと不織布の積層体等を用いることができる。吸収体４としては、パルプ等の繊維材料の繊維集合体又はこれに高吸収性ポリマーを担持させたものからを、ティッシュペーパーや透水性の不織布等の被覆材で包んでなるもの等を用いることができる。防漏壁７を形成する伸縮シートとしては、伸縮性のフィルム、不織布、織物またはそれらの積層シート等が挙げられる。具体的には、天然ゴム、ポリウレタン、ポリスチレン−ポリイソプレン共重合体、ポリスチレン−ポリブタジエン共重合体、アクリル酸エチル−エチレン等のポリエチレン−αオレフィン共重合体等からなる材自体が伸縮性を有する材料（フィルム、糸状物、不織布、織物）やこれら伸縮性の材料（弾性部材）と不織布等の積層物等が挙げられる。A material for forming thesanitary napkin 1 of the present embodiment will be described.
As the said surface sheet 2, the said back surface sheet 3, the said absorber 4, and a pair of leak-proof walls 7, if normally used for absorbent articles, such as a sanitary napkin, it can use without a restriction | limiting especially. For example, as the top sheet 2, a liquid permeable nonwoven fabric, an apertured film, or the like can be used, and as the back sheet 3, a resin film, a laminate of a resin film and a nonwoven fabric, or the like can be used. As the absorbent body 4, a fiber aggregate of fiber materials such as pulp or a material in which a superabsorbent polymer is supported on a fiber aggregate is used that is wrapped with a covering material such as tissue paper or a water-permeable nonwoven fabric. Can do. Examples of the stretch sheet forming the leak-proof wall 7 include stretch films, nonwoven fabrics, woven fabrics, or laminated sheets thereof. Specifically, the material itself made of natural rubber, polyurethane, polystyrene-polyisoprene copolymer, polystyrene-polybutadiene copolymer, polyethylene-α olefin copolymer such as ethyl acrylate-ethylene, etc. has a stretchable material. (Films, filaments, nonwoven fabrics, woven fabrics) and laminates of these stretchable materials (elastic members) and nonwoven fabrics.

上記前方中高部４１としては、パルプやコットンのような天然繊維、天然繊維以外の合成繊維、及びそれらを混合した繊維が挙げられ、吸収性の観点からパルプ系繊維から構成されていることが好ましい。ここで、合成繊維とは、具体的には、ポリエチレン、ポリプロピレン、ポリエステルやポリ乳酸等の樹脂より形成された単繊維や芯鞘構造繊維のような各種複合繊維、レーヨンなどの半合成繊維が含まれる。  Examples of the front middle andhigh portion 41 include natural fibers such as pulp and cotton, synthetic fibers other than natural fibers, and fibers obtained by mixing them, and are preferably composed of pulp fibers from the viewpoint of absorbability. . Here, specifically, synthetic fibers include single fibers formed from resins such as polyethylene, polypropylene, polyester and polylactic acid, various composite fibers such as core-sheath structure fibers, and semi-synthetic fibers such as rayon. It is.

上記後方中高部４２としては、上記前方中高部４１と同様に、パルプやコットンのような天然繊維、天然繊維以外の合成繊維、及びそれらを混合した繊維が挙げられ、フィット性の観点から合成繊維から構成されていることが好ましい。後方中高部４２の合成繊維は、バインダーや複合繊維のバインダー部分によって不織布化されていることが好ましく、ポリエチレン、ポリプロピレン、ポリエステルやポリ乳酸等の樹脂のトウ繊維やアセテート化されたレーヨンのトウ繊維に捲縮が施されて、嵩高化されているウエブ／不織布を用いることも好ましい。いずれの場合においても親水性であることが好ましい。  Examples of the rear middle /high portion 42 include natural fibers such as pulp and cotton, synthetic fibers other than natural fibers, and fibers obtained by mixing them as in the case of the front middle /high portion 41, and synthetic fibers from the viewpoint of fit. It is preferable that it is comprised from these. It is preferable that the synthetic fiber of the rear middlehigh part 42 is made into a non-woven fabric by a binder or a binder part of a composite fiber, such as a tow fiber of a resin such as polyethylene, polypropylene, polyester or polylactic acid, or an acetated rayon tow fiber. It is also preferable to use a web / nonwoven fabric that has been crimped to increase its bulk. In any case, it is preferably hydrophilic.

上記前方溝６１、上記中間溝６２、上記後方内溝６３及び上記後方外溝６４等のエンボス溝を形成する加工法は、ヒートエンボス加工、超音波エンボス加工、それらの組み合わせの加工法等が挙げられる。  Examples of the processing method for forming the embossed grooves such as thefront groove 61, theintermediate groove 62, the rearinner groove 63, and the rearouter groove 64 include heat embossing, ultrasonic embossing, and a combination thereof. It is done.

次に上述した本発明の本実施形態の生理用ナプキン１を使用した際の作用効果について説明する。
本実施形態の生理用ナプキン１は、図１及び図２に示すように、吸収体４の上面であって、生理用ナプキン１の前方部ｂ及び後方部ｃに、別個に設けられた前方中高部４１及び後方中高部４２を有している。即ち、前方中高部４１及び後方中高部４２は、生理用ナプキン１のウイング部３１，３１’の長手方向（ＣＬ方向：ＣＬ線の延びる方向）の後端付近において、離れて設けられているため、生理用ナプキン１の前方部ｂ又は後方部ｃの何れか一方に前方中高部４１又は後方中高部４２を変形させる力が発生しても、その変形させる力が他方の後方中高部４２又は後方中高部４２に伝わらず、生理用ナプキン１にヨレを生じ難い。Next, the effect at the time of using thesanitary napkin 1 of this embodiment of this invention mentioned above is demonstrated.
1 and 2, thesanitary napkin 1 of the present embodiment is an upper surface of the absorbent body 4, and is a front middle height provided separately on the front part b and the rear part c of thesanitary napkin 1. It has aportion 41 and a rear middle-high portion 42. That is, the front middlehigh portion 41 and the rear middlehigh portion 42 are provided apart in the vicinity of the rear end of thewing portions 31 and 31 ′ of thesanitary napkin 1 in the longitudinal direction (CL direction: the direction in which the CL line extends). Even if a force for deforming the front middle /high part 41 or the rear middle /high part 42 is generated in either the front part b or the rear part c of thesanitary napkin 1, the deforming force is the other rear middle /high part 42 or rear part. It is difficult for thesanitary napkin 1 to be twisted without being transmitted to the middle-high portion 42.

また、本実施形態の生理用ナプキン１は、図１に示すように、前方中高部４１の側部４１ａ，４１ａ’に沿って形成され且つ生理用ナプキン１の幅方向（ＣＬ方向に直交する方向）に凸状に形成されている一対の前方溝６１と、後方中高部４２に向って凸状に形成された中間溝７とを有している。そのため、装着者の足の動き等による左右からの応力（矢印（１））が、生理用ナプキン１の排泄部領域ａに生じた場合、図４に示すように、幅方向外方に凸状の前方溝６１によって囲まれた前方中高部４１が、装着者との当接方向に盛り上がり（矢印（２））、臀部の溝への密着性が向上し、経血等の体液の漏れ防止性が向上する。また、後方中高部４２に向って凸状の中間溝７により、図４に示すように、生理用ナプキン１の後方中高部４２が、前方中高部４１の下方に潜り込むように移動するため（矢印（３））、装着時に前方中高部４１と後方中高部４２との間に隙間を生じない。よって、中高部のフィット性を高めることができるので、経血等の体液の漏れ防止性を高めることができる。  Moreover, thesanitary napkin 1 of this embodiment is formed along theside parts 41a and 41a 'of the front middle-high part 41, and the width direction (direction orthogonal to CL direction) of thesanitary napkin 1 as shown in FIG. ) And a pair offront grooves 61 formed in a convex shape, and anintermediate groove 7 formed in a convex shape toward the rear middlehigh portion 42. Therefore, when stress (arrow (1)) from the left and right due to the movement of the wearer's foot or the like is generated in the excretion region a of thesanitary napkin 1, as shown in FIG. The front middle-high part 41 surrounded by thefront groove 61 rises in the direction of contact with the wearer (arrow (2)), improves the adhesion of the buttocks to the groove, and prevents leakage of body fluid such as menstrual blood Will improve. Further, as shown in FIG. 4, the rear middlehigh part 42 of thesanitary napkin 1 moves so as to sink under the front middlehigh part 41 by the convexintermediate groove 7 toward the rear middle high part 42 (arrow). (3)) No gap is created between the front middle-high portion 41 and the rear middle-high portion 42 during mounting. Therefore, since the fitting property of a middle-high part can be improved, the leak prevention property of bodily fluids, such as menstrual blood, can be improved.

また、本実施形態の生理用ナプキン１は、図１に示すように、後方中高部４２が、生理用ナプキン１の長手方向（ＣＬ方向）の後方に向かって先細り形状に形成されているので、臀部の溝への密着性が向上し、経血等の体液の漏れ防止性が更に向上する。  Further, as shown in FIG. 1, thesanitary napkin 1 of the present embodiment has a rear middle andhigh portion 42 formed in a tapered shape toward the rear in the longitudinal direction (CL direction) of thesanitary napkin 1. Adhesion to the groove of the buttocks improves, and the ability to prevent leakage of body fluid such as menstrual blood is further improved.

また、本実施形態の生理用ナプキン１は、図１に示すように、後方外溝６４が、前方溝６１と繋がっているので、生理用ナプキン１のヨレ防止、および経血等の体液の横漏れ防止を両立することができる。  Further, as shown in FIG. 1, thesanitary napkin 1 of the present embodiment has the rearouter groove 64 connected to thefront groove 61, so that thesanitary napkin 1 is prevented from twisting and the side of body fluid such as menstrual blood. Both leak prevention can be achieved.

本発明の吸収性物品は、上述の本実施形態の生理用ナプキンに何ら制限されるものではなく、適宜変更可能である。また、上述の本実施形態の生理用ナプキンにおける各構成要件は、本発明の趣旨を損なわない範囲で、適宜組み合わせて実施できる。  The absorbent article of the present invention is not limited to the sanitary napkin of the above-described embodiment, and can be appropriately changed. Moreover, each component in the sanitary napkin of the above-mentioned embodiment can be appropriately combined and implemented within a range not impairing the gist of the present invention.

例えば、上述の本実施形態の生理用ナプキン１においては、一対の前方溝６１は、図１に示すように、凸状の曲線形状に形成されているが、凸状の屈曲線状に形成されていてもよい。  For example, in thesanitary napkin 1 of the above-described embodiment, the pair offront grooves 61 are formed in a convex curve shape as shown in FIG. 1, but are formed in a convex bent line shape. It may be.

また、上述の本実施形態の生理用ナプキン１においては、中間溝６２は、図１に示すように、後方中高部４２に向って凸状の曲線形状に形成されているが、凸状の屈曲線状に形成されていてもよい。  Further, in thesanitary napkin 1 of the above-described embodiment, theintermediate groove 62 is formed in a convex curved shape toward the rear middle-high part 42 as shown in FIG. It may be formed in a linear shape.

また、上述の本実施形態の生理用ナプキン１においては、後方中高部４２は、図１に示すように、先細り形状に形成されているが、先細り形状でなくてもよい。  Moreover, in thesanitary napkin 1 of the above-described embodiment, the rear middle-high part 42 is formed in a tapered shape as shown in FIG. 1, but may not be in a tapered shape.

また、上述の本実施形態の生理用ナプキン１においては、図１に示すように、後方外溝６４は、前方溝６１と繋がっており、中間溝６２及び後方内溝６３とは繋がっていないが、何れも繋がっていても繋がってなくてもよい。また、上述の本実施形態の生理用ナプキン１においては、後方内溝６３及び後方外溝６４を備えているが、何れか一方を又は何れも備えてなくてもよい。  Moreover, in thesanitary napkin 1 of the above-described embodiment, as illustrated in FIG. 1, the rearouter groove 64 is connected to thefront groove 61, but not theintermediate groove 62 and the rearinner groove 63. Any of these may be connected or not connected. Moreover, in thesanitary napkin 1 of the above-described embodiment, the rearinner groove 63 and the rearouter groove 64 are provided, but either one or both may not be provided.

また、生理用ナプキン１を個装形態に折り畳む場合には、前方部ｂと後方部ｃとで、排泄部領域ａを避けるように三つ折り、四つ折りなどに折り、コンパクトにするが、後方部ｃにおける折り線９は、図５に示すように、後方フラップ３２の非肌当接面に配される固定部８を避けるように形成されていることが好ましく、固定部８を避けてさらに後方に形成されていることがより好ましい。固定部８を跨いでしまうと、固定部８同士が個装時に接合されて開封時に離れなかったり、かかる部位に剥離紙を別途設けたり、固定部８が折られることで皺ができ、固定がうまくでき難いなどのためである。  In addition, when thesanitary napkin 1 is folded into a single package, the front part b and the rear part c are folded in three or four so as to avoid the excretion part region a, and are compact. As shown in FIG. 5, thefold line 9 at c is preferably formed so as to avoid the fixing portion 8 disposed on the non-skin contact surface of the rear flap 32, and further away from the fixing portion 8. More preferably, it is formed. If the fixing part 8 is straddled, the fixing parts 8 are joined to each other at the time of individual packaging and are not separated at the time of opening, or a release paper is separately provided at such a part, or the fixing part 8 is folded to cause wrinkles. This is because it is difficult to do well.

本発明の吸収性物品は、生理用ナプキン以外にも、例えば、使い捨ておむつ、失禁者用パッド、パンティーライナー等に好適に用いることができる。  In addition to sanitary napkins, the absorbent article of the present invention can be suitably used for disposable diapers, incontinence pads, panty liners, and the like.

以下、実施例により本発明を更に詳細に説明する。しかしながら本発明の範囲はかかる実施例に制限されない。Hereinafter, the present invention will be described in more detail with reference to examples. However, the scope of the present invention is not limited to such examples.

〔実施例１〕
以下の部材を用いて図１〜図４に示す生理用ナプキンを作製した。
・表面シート：ポリエステル・ポリエチレン複合繊維を原料とする坪量２５ｇ／ｍ²のエアスルー不織布。
・裏面シート：ポリエチレン製の坪量３０ｇ／ｍ²のフィルム。
・吸収体：フラッフパルプの積繊体（坪量２８０ｇ／ｍ²）を、坪量１６ｇ／ｍ²のティッシュペーパーで包んだもの。
・防漏壁を形成する伸縮シート：ポリエチレン・ポリプロピレン複合繊維製の坪量２０ｇ／ｍ²のスパンボンド不織布に、複数本の糸状の弾性部材を配置し、伸縮性を付与した複合シート。
・前方中高部及び後方中高部：フラッフパルプの積繊体（坪量５００ｇ／ｍ²）。[Example 1]
The sanitary napkin shown in FIGS. 1-4 was produced using the following members.
-Top sheet: An air-through nonwoven fabric with a basis weight of 25 g / m² made of polyester / polyethylene composite fiber.
-Back sheet: Polyethylene film having a basis weight of 30 g / m² .
Absorbent: A fluff pulp pile (basis weight 280 g / m² ) wrapped with tissue paper having a basis weight of 16 g / m² .
· Stretch sheet forming the leakage preventing wall: polyethylene-polypropylene composite fibers made of basis weight spunbonded nonwoven 20 g / m^2, the composite sheet is disposed an elastic member a plurality of thread-like, imparted with stretchability.
-Front middle high part and rear middle high part: Stacked fiber body of fluff pulp (basis weight 500 g / m² ).

前方溝６１、中間溝６２、後方内溝６３及び後方外溝６４は、図１及び図３に示す形状に形成した。形成加工法には、ヒートエンボス加工手段を用いた。各溝の溝幅は、２ｍｍであった。  Thefront groove 61, theintermediate groove 62, the rearinner groove 63, and the rearouter groove 64 were formed in the shapes shown in FIGS. A heat embossing means was used for the forming method. The groove width of each groove was 2 mm.

前方溝６１は、図３に示すように、幅方向外方に凸状に形成されており、前方中高部４１の側部と該前方溝の間隔は、最も広い部分ｌ１において、その距離が、７．５ｍｍであり、最も狭い部分ｌ２において、その距離が、４．５ｍｍであった。また、括れ部６１ｂ１と括れ部６１ｂ２との間の長さｌ３は、６５ｍｍであった。  As shown in FIG. 3, thefront groove 61 is formed in a convex shape outward in the width direction, and the distance between the side portion of the front middle andhigh portion 41 and the front groove is the widest portion l1, It was 7.5 mm, and the distance was 4.5 mm in the narrowest portion l2. The length l3 between the constricted part 61b1 and the constricted part 61b2 was 65 mm.

図３に示すように、前方中高部４１と後方中高部４２との間の間隔ｄ１が、２５ｍｍであった。中間溝６２は、幅方向に連続的に延び、後方中高部４２に向って凸状のＵ字状に形成されており、凸状の長手方向（ＣＬ方向）の長さｌ４が、１０ｍｍであって、中間溝６２の凸状の頂部と前方中高部４１の中間溝６２寄りの端部の間隔ｄ２が、１５ｍｍであった。  As shown in FIG. 3, the distance d <b> 1 between the front middlehigh portion 41 and the rear middlehigh portion 42 was 25 mm. Theintermediate groove 62 continuously extends in the width direction and is formed in a convex U shape toward the rear middlehigh portion 42. The length l4 of the convex longitudinal direction (CL direction) is 10 mm. The distance d2 between the convex top of theintermediate groove 62 and the end of the front middlehigh portion 41 near theintermediate groove 62 was 15 mm.

〔実施例２〕
中間溝６２を、後方中高部４２に向って凸状のＶ字状に形成する以外は実施例１と同様にして生理用ナプキンを得た。[Example 2]
A sanitary napkin was obtained in the same manner as in Example 1 except that theintermediate groove 62 was formed in a convex V shape toward the rear middlehigh portion 42.

〔実施例３〕
中間溝６２を、幅方向にドット状、即ち非連続的に延びて形成する以外は実施例１と同様にして生理用ナプキンを得た。Example 3
A sanitary napkin was obtained in the same manner as in Example 1 except that theintermediate groove 62 was formed in a dot shape in the width direction, that is, discontinuously extending.

〔実施例４〕
中間溝６２を、後方中高部４２に向って拡開するように、凸状の逆八の字状に形成する以外は実施例１と同様にして生理用ナプキンを得た。
されており、Example 4
A sanitary napkin was obtained in the same manner as in Example 1 except that theintermediate groove 62 was formed in a convex inverted eight-letter shape so as to expand toward the rear middlehigh portion 42.
Has been

〔比較例１〕
前方溝６１を、幅方向内方に、即ち、前方中高部４１に向かって凸状に形成する以外は実施例１と同様にして生理用ナプキンを得た。[Comparative Example 1]
A sanitary napkin was obtained in the same manner as in Example 1 except that thefront groove 61 was formed inwardly in the width direction, that is, in a convex shape toward the front middlehigh portion 41.

〔比較例２〕
中間溝６２を、前方中高部４１に向って凸状のＵ字状に形成する以外は実施例１と同様にして生理用ナプキンを得た。[Comparative Example 2]
A sanitary napkin was obtained in the same manner as in Example 1 except that theintermediate groove 62 was formed in a U-shape convex toward the front middlehigh portion 41.

〔比較例３〕
中間溝６２を、前方中高部４１と後方中高部４２との間に配置された、後方中高部４２に向ってＣＬ線と平行な２本の直線状に形成する以外は実施例１と同様にして生理用ナプキンを得た。[Comparative Example 3]
Theintermediate groove 62 is disposed between the front middlehigh portion 41 and the rear middlehigh portion 42, and is formed in the same manner as in the first embodiment except that it is formed in two straight lines parallel to the CL line toward the rear middlehigh portion 42. Thus, a sanitary napkin was obtained.

〔比較例４〕
中間溝６２を設けず、前方中高部４１と後方中高部４２との間の間隔ｄ１を１５ｍｍに形成する以外は実施例１と同様にして生理用ナプキンを得た。[Comparative Example 4]
A sanitary napkin was obtained in the same manner as in Example 1 except that theintermediate groove 62 was not provided and the distance d1 between the front middlehigh portion 41 and the rear middlehigh portion 42 was formed to 15 mm.

〔比較例５〕
中間溝６２の凸状の頂部と前方中高部４１の中間溝６２寄りの端部の間隔ｄ２を５ｍｍに形成する以外は実施例１と同様にして生理用ナプキンを得た。[Comparative Example 5]
A sanitary napkin was obtained in the same manner as in Example 1 except that the distance d2 between the convex top of theintermediate groove 62 and the end of the front middlehigh portion 41 near theintermediate groove 62 was 5 mm.

〔比較例６〕
中間溝６２の凸状の頂部と前方中高部４１の中間溝６２寄りの端部の間隔ｄ２を２０ｍｍに形成する以外は実施例１と同様にして生理用ナプキンを得た。[Comparative Example 6]
A sanitary napkin was obtained in the same manner as in Example 1 except that the distance d2 between the convex top of theintermediate groove 62 and the end of the front middlehigh portion 41 near theintermediate groove 62 was 20 mm.

〔比較例７〕
前方中高部４１と後方中高部４２との間の間隔ｄ１を３５ｍｍに形成する以外は実施例１と同様にして生理用ナプキンを得た。[Comparative Example 7]
A sanitary napkin was obtained in the same manner as in Example 1 except that the distance d1 between the front middlehigh portion 41 and the rear middlehigh portion 42 was set to 35 mm.

〔生理用ナプキンの評価〕
実施例１〜４及び比較例１〜７の生理用ナプキンのサンプルそれぞれに、前方中高部４１の幅方向中央であって、中間溝６２寄りの端部から５ｍｍ離れた位置上の表面シートに印１を付け、更に、後方中高部４２の幅方向中央であって、中間溝６２寄りの端部から５ｍｍ離れた位置上の表面シートに印２を付ける。次に、実施例１〜４及び比較例１〜７の生理用ナプキンのサンプルそれぞれを、図４に示すように、装着者の足の動き等による左右からの応力（矢印（１））が、生理用ナプキン１の排泄部領域ａに生じた場合を想定して、矢印（１）の方向に応力を作用させるように掴み、股間幅３５ｍｍまで圧縮させる。その際の前記印１及び前記印２の間の間隔を測定し、間隔が１０ｍｍ以下であれば、装着時に前方中高部４１と後方中高部４２との間に隙間を生じず、経血等の体液の漏れ防止性を高めることができるものとして評価した。これらの結果を下記表１、表２及び表３に示す。[Evaluation of sanitary napkins]
Each of the sanitary napkin samples of Examples 1 to 4 and Comparative Examples 1 to 7 is marked on the top sheet at the center in the width direction of the front middle andhigh portion 41 and 5 mm away from the end near theintermediate groove 62. In addition, a mark 2 is marked on the top sheet at the center in the width direction of the rear middle-high portion 42 and 5 mm away from the end near theintermediate groove 62. Next, each of the sanitary napkins of Examples 1 to 4 and Comparative Examples 1 to 7, as shown in FIG. Assuming that thesanitary napkin 1 is generated in the excretion part region a, thesanitary napkin 1 is gripped so as to exert stress in the direction of the arrow (1) and compressed to a crotch width of 35 mm. In this case, the distance between themark 1 and the mark 2 is measured, and if the distance is 10 mm or less, a gap is not generated between the front middlehigh part 41 and the rear middlehigh part 42 at the time of wearing. It was evaluated that it could enhance the prevention of body fluid leakage. These results are shown in Table 1, Table 2 and Table 3 below.

表１、表２及び表３に示す結果から明らかなように、実施例の生理用ナプキンのサンプルは、比較例の生理用ナプキンのサンプルに比べ、装着時に前方中高部４１と後方中高部４２との間に隙間を生じず、中高部のフィット性の向上及び漏れ防止性の向上が期待できることがわかった。  As is clear from the results shown in Tables 1, 2 and 3, the sanitary napkin samples of the examples were compared with the sanitary napkin samples of the comparative examples when the front middlehigh part 41 and the rear middlehigh part 42 were It was found that there is no gap between them, and that it is possible to improve the fit of the middle and high parts and improve the leakage prevention property.

本発明の実施形態である生理用ナプキンの斜視図である。It is a perspective view of the sanitary napkin which is embodiment of this invention.図１に示す生理用ナプキンのＹ１−Ｙ１線断面図である。It is the Y1-Y1 sectional view taken on the line of the sanitary napkin shown in FIG.図１に示す生理用ナプキンの要部平面図である。It is a principal part top view of the sanitary napkin shown in FIG.図１に示す生理用ナプキンの装着状態を表す斜視図である。It is a perspective view showing the mounting state of the sanitary napkin shown in FIG.図１に示す生理用ナプキンの平面図である。It is a top view of the sanitary napkin shown in FIG.

符号の説明Explanation of symbols

１ 生理用ナプキン
２ 表面シート
３ 裏面シート
３１ ウイング部
３２ 後方フラップ
４ 吸収体
４１ 前方中高部
４１ａ，４１ａ’ 前方中高部の長手方向の側部
４１ｂ１，４１ｂ２ 前方中高部の長手方向の端部
４２ 後方中高部
４２ａ，４２ａ’ 後方中高部の長手方向の側部
５ 吸収性本体
６１，６１’ 前方溝
６１ｂ１，６１ｂ１’，６１ｂ２，６１ｂ２’ 前方溝の括れ部
６２ 中間溝
６３，６３’ 後方内溝
６３ｃ 最後方先端部
６４，６４’ 後方外溝
７ 防漏壁
８ 固定部
８ｂ 長手方向の前方部寄りの端部
９ 折り線
ａ 排泄部領域
ｂ 前方部
ｃ 後方部
ＣＬ 生理用ナプキンの長手方向に延びる中心線
ＩＬ 仮想直線DESCRIPTION OFSYMBOLS 1 Sanitary napkin 2 Top sheet 3Back sheet 31 Wing part 32 Back flap 4Absorber 41 Front middlehigh part 41a, 41a 'Longitudinal side part of front middle high part 41b1, 41b2 End part of longitudinal direction of front middlehigh part 42 Back Middlehigh part 42a, 42a 'Longitudinal side part 5 of rear middle highpart Absorbent body 61, 61' Front groove 61b1, 61b1 ', 61b2, 61b2' Front groove constrictedpart 62Intermediate groove 63, 63 'Rearinner groove 63cLast tip 64, 64 'Rearouter groove 7 Leakage barrier 8Fixingpart 8b End 9 near the front in the longitudinal direction Fold line a Excretion area b Front part c Rear part CL Extends in the longitudinal direction of the sanitary napkin Center line IL Virtual straight line

Claims (5)

Translated fromJapanese

肌当接面を形成する表面シート、非肌当接面を形成する裏面シート及び両シート間に介在する吸収体を具備する吸収性物品であって、
前記吸収体は、前記吸収性物品の前方部及び後方部における肌当接面側に、該吸収体より幅狭で且つ肌当接面側に凸状に突出する前方中高部及び後方中高部を有し、該前方中高部は装着者の体液排泄部に当接される排泄部領域に形成されており、
前記吸収性物品の長手方向に延びる中心線に線対称的に設けられる一対の前方溝が、前記前方中高部の側部に沿って形成され且つ前記吸収性物品の幅方向外方に凸状に形成されており、
前記前方中高部と前記後方中高部との間に、前記吸収性物品の幅方向に延び且つ該後方中高部に向って凸状に形成された中間溝が形成されており、
前記前方溝は凸状の曲線であり、前記一対の前方溝は、互いの間隔が最も広い部分と、該広い部分の前方及び後方それぞれに、互いの間隔が狭い部を有しており、
前記一対の前方溝は、前記間隔が狭い部分として、前記前方中高部の長手方向の前方端部の近傍及び後方端部の近傍それぞれに、前記吸収性物品の内側に括れた一対の括れ部を有している吸収性物品。An absorbent article comprising a top sheet that forms a skin contact surface, a back sheet that forms a non-skin contact surface, and an absorber interposed between both sheets,
The absorbent body has a front middle high portion and a rear middle high portion that are narrower than the absorbent body and protrude convexly on the skin contact surface side on the skin contact surface side in the front portion and the rear portion of the absorbent article. The front middle high part is formed in the excretion part region that comes into contact with the body fluid excretion part of the wearer,
A pair of front grooves provided symmetrically with respect to a center line extending in the longitudinal direction of the absorbent article is formed along a side portion of the front middle-high part and protrudes outward in the width direction of the absorbent article. Formed,
Between the front middle high part and the rear middle high part, an intermediate groove extending in the width direction of the absorbent article and formed in a convex shape toward the rear middle high part is formed,
The front groove is a convex curve, and the pair of front grooves has a portion with the widest interval between each other, and a portion with a narrow interval between the front and the rear of the wide portion,
The pair of front grooves includes a pair of constricted portions confined inside the absorbent article in the vicinity of the front end portion in the longitudinal direction and the vicinity of the rear end portion of the front middle-and-high portion as the narrow gap portion. absorbentarticle has. 前方側の前記一対の括れ部と後方側の前記一対の括れ部との間の長さは、４０〜８０ｍｍである請求項１に記載の吸収性物品。The length between the pair of constricted portions of the pair of constricted portions of the front side and the rear side, the absorbent article according to claim1 which is 40 to 80 mm. 前記後方中高部が、前記吸収性物品の長手方向の後方に向かって先細り形状に形成されており、前記吸収性物品の前記中心線に線対称的に設けられる一対の後方内溝が、該後方中高部の側部に沿って形成されており、
前記吸収性物品の前記中心線に線対称的に設けられる一対の後方外溝が、前記後方内溝より前記吸収性物品の外方に形成され且つ前記前方溝と繋がって形成されている請求項１又は２に記載の吸収性物品。The rear middle high portion is formed in a tapered shape toward the rear in the longitudinal direction of the absorbent article, and a pair of rear inner grooves provided symmetrically with respect to the center line of the absorbent article It is formed along the side of the mid-high part,
A pair of rear outer grooves provided symmetrically with respect to the center line of the absorbent article is formed outward of the absorbent article from the rear inner groove and connected to the front groove. The absorbent article according to 1or 2 . 前記前方溝、前記中間溝、前記後方内溝及び前記後方外溝が、それぞれ前記表面シートと前記吸収体とを接合している請求項３に記載の吸収性物品。The absorbent article according to claim3 , wherein the front groove, the intermediate groove, the rear inner groove, and the rear outer groove respectively join the top sheet and the absorber. 前記後方部の幅方向両外方には、一対の後方フラップが配置され、該後方フラップそれぞれの非肌当接面には、下着に固定する固定部が一つずつ存在し、該固定部は、前記後方内溝の最後方先端部に接し、且つ長手方向に延びる前記中心線に垂直な仮想直線上に配置されており、
前記吸収性物品の後方部における個装時の折り線は、前記固定部が配置されている部位よりも後方側に存在する請求項３又は４に記載の吸収性物品。A pair of rear flaps are arranged on both outer sides in the width direction of the rear portion, and each of the rear flaps has a non-skin contact surface with one fixing portion for fixing to the underwear, , Is disposed on a virtual straight line that is in contact with the rearmost tip of the rear inner groove and is perpendicular to the center line extending in the longitudinal direction,
The absorbent article according to claim3 or4 , wherein a fold line at the time of individual packaging in the rear part of the absorbent article exists on the rear side with respect to a portion where the fixing part is disposed.

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