JP5024918B2 - The absorbent article - Google Patents

The absorbent article Download PDF

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JP5024918B2
JP5024918B2 JP2005339906A JP2005339906A JP5024918B2 JP 5024918 B2 JP5024918 B2 JP 5024918B2 JP 2005339906 A JP2005339906 A JP 2005339906A JP 2005339906 A JP2005339906 A JP 2005339906A JP 5024918 B2 JP5024918 B2 JP 5024918B2
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side
embossed grooves
longitudinal
rear
embossed
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JP2007143699A (en
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瑠美子 余吾
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大王製紙株式会社
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/47Sanitary towels, incontinence pads or napkins
    • A61F13/475Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means
    • A61F13/4751Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means the means preventing fluid flow in a transversal direction
    • A61F13/4756Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means the means preventing fluid flow in a transversal direction the means consisting of grooves, e.g. channels, depressions or embossments, resulting in a heterogeneous surface level
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/47Sanitary towels, incontinence pads or napkins
    • A61F13/472Sanitary towels, incontinence pads or napkins specially adapted for female use
    • A61F13/47218Sanitary towels, incontinence pads or napkins specially adapted for female use with a raised crotch region, e.g. hump

Description

本発明は、経血やおりものなどを吸収するための生理用ナプキン、パンティライナー、失禁パッド等の吸収性物品、詳しくは表面側に略長手方向に沿う方向に左右対の縦方向エンボス溝が形成された吸収性物品に関する。 The present invention is a sanitary napkin for absorbing and menstrual blood and textiles, panty liners, absorbent articles of the incontinence pad or the like, is more information longitudinal embossed grooves of the right and left pair in the direction along the substantially longitudinal direction on the surface side formed absorbent article.

従来より、パンティライナー、生理用ナプキン、失禁パッドなどの吸収性物品として、ポリエチレンシートまたはポリエチレンシートラミネート不織布などの不透液性裏面シートと、不織布または透液性プラスチックシートなどの透液性表面シートとの間に綿状パルプ等からなる吸収体を介在したものが知られている。 Conventionally, panty liners, sanitary napkins, as absorbent articles such as incontinence pads, liquid-permeable surface sheet such as a liquid-impermeable backsheet such as polyethylene sheet or a polyethylene sheet laminate nonwoven fabric, nonwoven fabric or liquid-permeable plastic sheet is known in which interposed an absorber made of cotton-like pulp or the like between the.

この種の吸収性物品にも幾多の改良が重ねられ、体液漏れ等を防止するための手段が種々講じられている。 Also in this kind of absorbent articles numerous improvements are overlapped, it means for preventing body fluid leakage and the like are variously devised. 例えば、幅方向への体液の拡散を防止するとともに、吸収体のヨレを防止し、かつ吸収体中央部を隆起させ局部への密着性を向上させるなどの目的で、表面側に熱エンボスによってエンボス溝を形成する技術が存在する。 For example, embossed with preventing the diffusion of the body fluid in the width direction, for the purpose of preventing the twist of the absorber, and improve the adhesion of the absorbent central portion to the local is raised, the surface side by the heat embossing there is a technique of forming a groove.

たとえば、下記特許文献1においては、図11に示されるように、生理用ナプキンNの透液性表面シート面側に略長手方向に沿う方向に長手方向中心線を跨いで左右一対の、内方側に凸形状を成す縦方向弧状エンボス溝50,50が形成されるとともに、略幅方向に沿う方向に平面視で、前後端に向かって凸形状の幅方向弧状エンボス溝51,51が形成された吸収性物品が開示されている。 For example, in Patent Document 1, as shown in Figure 11, a pair of right and left across the longitudinal center line in a direction along a substantially longitudinal direction pervious topsheet side of the sanitary napkin N, inwardly with longitudinal arcuate embossed grooves 50, 50 forming a convex shape is formed on the side, in a plan view in a direction along the substantially transverse direction, the width direction arcuate embossed grooves 51, 51 of the convex shape is formed toward the front and rear ends absorbent article is disclosed a.

また、下記特許文献2においては、図12に示されるように、生理用ナプキンNの透液性表面シート面側に略長手方向に沿う方向に長手方向中心線を跨いで左右一対の縦方向エンボス溝52,52が平行に形成された、全体として略小判形状のエンボス溝が形成された吸収性物品が開示されている。 Further, in Patent Document 2, as shown in FIG. 12, the longitudinal embossments pair across a longitudinal center line in a direction along a substantially longitudinal direction pervious topsheet side of the sanitary napkin N grooves 52, 52 are formed in parallel, the absorbent article is disclosed which is embossed grooves of substantially oval shape is formed as a whole.
特開2003−265519号公報 JP 2003-265519 JP 特開2003−180734号公報 JP 2003-180734 JP

しかしながら、前記特許文献1記載のエンボス溝形状の場合、排血口部分では身体の隙間を埋めることができても、エンボス溝部でそれよりも外側部分が折れ曲がり易く、折れ曲がり部分と排血口後端からお尻の付け根部分にかけて隙間が生じることがあった。 However, if the embossed groove shape of the Patent Document 1, even if it is possible to fill the gap of the body at Haichiguchi part, easily bent outer portion than in the embossed groove bent portion and Haichiguchi rear gap from over the base of the ass was to occur. また、両脚付け根部分から圧力を受けると、シワやヨレが前端側及び後端側の両方に延びるため、特に後斜めからの漏れが生じ易くなっていた。 Further, when receiving the pressure from the legs root portion, since the wrinkles and kinks extending both front side and rear side, has become likely to occur leakage from the rear obliquely particular.

また、上記特許文献2記載のエンボス溝形状の場合、排血口部分からお尻付け根部分にかけて身体との隙間を埋めることができても、両脚付け根部分から圧力を受けると、シワやヨレが前端側及び後端側の両方に延びるため、特に後斜めからの漏れが生じ易くなっていた。 Also, in the case of the embossed groove shape of the Patent Document 2, even if it is possible to fill the gap between the body toward butt joint portion from the Haichiguchi portion receives a pressure from the legs root portion, wrinkles and kinks front for extending both side and rear side, it has become likely to occur leakage from the rear obliquely particular.

そこで本発明の主たる課題は、排血口後部からお尻の付け根部分までの間に生じるシワやヨレを無くして、身体との間に隙間が生じないようにすることで、後斜めからの漏れを防止することにある。 Therefore a main object of the present invention is to eliminate wrinkles and twisting occurring until base of the buttocks from Haichiguchi rear, by preventing a gap between the body, the leakage from the rear obliquely It is to prevent.

前記課題を解決するために請求項1に係る本発明として、透液性表面シートと、裏面シートとの間に吸収体が介在され、前記透液性表面シート面側に、 排血部位を含む股下範囲に左右対で略長手方向に沿う縦方向エンボス溝が形成された吸収性物品において、 As the present invention according to claim 1 to solve the above problems, a liquid-permeable topsheet, absorbent body between the backsheet is interposed in the liquid-permeable surface sheet side, including Haiti sites in the absorbent article is longitudinally embossed grooves along the substantially longitudinal direction are formed in the right and left pair crotch range,
前記縦方向エンボス溝は、吸収性物品の後部側から前部側にかけて離間幅を狭める形状とし、 前記縦方向エンボス溝の前部側始端同士を結合するとともに、前端側に凸状の前部側幅方向エンボス溝が形成され、前記縦方向エンボス溝の後部側終端同士を結合する後部側幅方向エンボス溝が形成され、全体として閉合形状のエンボス溝が形成されるとともに、この閉合形状エンボス溝によって囲まれた領域が吸収体が増厚された中高部とされ、 The longitudinal embossed grooves, a shape narrowing the spacing widths toward the front side from the rear side of the absorbent article, the longitudinal as well as binding the front side starting end to each other in the direction embossing grooves, the front side of the convex front side widthwise embossed groove is formed, the rear-side width direction embossed grooves for coupling the rear side end between the longitudinal embossed groove is formed, together with embossed groove as a whole closure shape is formed, by the closure shapes embossed grooves region surrounded by the absorber is a domed portion which is thickened,
前記縦方向エンボス溝の前部側始端間の離間幅が20〜40mmとされ、前記縦方向エンボス溝の後部側終端間の離間幅が50〜60mmとされ、 The separation width between the front side starting end of the longitudinal embossed groove is between 20 to 40 mm, spaced width between the rear side end of the longitudinal embossed groove is between 50 to 60 mm,
前記後部側幅方向エンボス溝は、両側部分に吸収性物品の後端側に凸状を成す左右対の凸状曲線部と、これら凸状曲線部の間に存在する凹状曲線部とからなる平面視で略W字状曲線を成すエンボス溝とされ、 Said rear-side width direction embossed groove is a plan consisting of a convex curved portion of the left and right pairs that form a convex on the rear end side of the absorbent article on both side portions, a concave curved portion which is present between these convexly curved portion is embossed grooves having a substantially W-shaped curve in view,
前記吸収体において、 前記縦方向エンボス溝間の幅方向略中央位置であってかつ裏面側に、吸収性物品の長手方向に沿って凹状エンボス溝が形成されていることを特徴とする吸収性物品が提供される。 In the absorbent body, the absorbent article, characterized in that the substantially transverse direction between the longitudinal direction embossed grooves a central position and on the back side, concave embossed grooves along the longitudinal direction of the absorbent article is formed There is provided.

上記請求項1記載の発明では、縦方向エンボス溝は、吸収性物品の後部側から前部側にかけて離間幅を狭める形状とするものである。 In the invention described in claim 1, wherein longitudinal embossed grooves is to shape narrowing the spacing widths toward the front side from the rear side of the absorbent article. 従って、縦方向エンボス溝に挟まれた吸収体は、後部側で十分な広さを保持でき、かつ両脚付け根部分から圧力を受けたとしても、シワやヨレは相対的に離間幅が狭くなっている前端側に逃げるように延びるため、後部側にはシワやヨレが発生しづらく、身体との間に隙間が生じ難くなるため、後斜めからの漏れを防止できるようになる。 Thus, sandwiched longitudinally embossed grooves absorber at the rear side can retain sufficient size and even under pressure from legs root portion, wrinkles and twisting are relatively spaced width narrows since extends to escape to the front end side are, wrinkles and kinks hardly generated in the rear side, a gap hardly occurs between the body, it becomes possible to prevent leakage from the rear obliquely.

なお、「吸収性物品の後部側から前部側にかけて離間幅を狭める形状」とは、離間幅を漸次狭める場合の他、特に後側部分に平行部分を有し、中間点から徐々に離間幅を狭める場合を含むものである。 The "shape of narrowing the spacing widths toward the front side from the rear side of the absorbent article", in addition to a case of narrowing the spacing widths gradually has a parallel portion, particularly the rear portion, gradually away width from the midpoint it is intended to include the case in which narrow the. すなわち、前部側に行くに従って離間幅が拡大する部分が存在しなければよい。 That is, it does not exist portions spaced width is enlarged toward the front side.

本発明では、排血口後部からお尻の付け根部分までの領域をエンボス溝で画成するため、縦方向エンボス溝の前部側始端同士を結合する前部幅方向エンボスと縦方向エンボス溝の後部側終端同士を結合する後部側幅方向エンボス溝を形成するものである。 In the present invention, to define a region up to the root portion of the buttocks in the embossed grooves from Haichiguchi rear longitudinal embossed groove front width direction embossing and vertical embossed grooves for coupling the front side starting end between the and forms a rear side widthwise embossed grooves for coupling the rear side end each other.

また、後部側幅方向エンボス溝のエンボス形状を、平面視で略W字状曲線を成すエンボス溝とすることにより、両脚部から圧力を受けた際に、身体側に隆起するように山折りとなって身体に密着し易くなる。 Further, the embossed shape of the rear-side width direction embossing grooves, by the embossed grooves having a substantially W-shaped curve in a plan view, when subjected to pressure from the legs, O and mountain fold so as to bulge to the body side it tends to be brought into close contact with the body.

本発明では、前記吸収体において、縦方向エンボス溝の略中央位置であってかつ裏面側に、吸収性物品の長手方向に沿って凹状エンボス溝を形成するものであり、前記凹状エンボス溝は、凹状溝軸部分が他の部分よりも薄肉化され、剛性(断面二次モーメント)が低下することにより、凹状エンボス溝を可撓軸(長手方向可撓軸)として横断方向の変形性能が確保され、装着状態では、前記横断方向で前記可撓軸部分が角折れするように変形し、臀部の丸みに沿うように身体にフィットするようになるとともに、前記可撓軸により吸収体を隆起させるように変形するため、お尻の窪み部分に密着させることができる。 In the present invention, in the absorbent body, a substantially central position of the longitudinal embossed grooves and on the back side, which forms the concave-pattern grooves along the longitudinal direction of the absorbent article, the concave-pattern groove, concave Mizojiku portion is thinner than other portions, by the rigidity (moment of inertia of) decreases, deformation performance of the transverse direction is ensured concave-pattern grooves as flexible shaft (longitudinal flexible shaft) in the mounted state, wherein the flexible shaft portion in the transverse direction is deformed so as to break the corners as they are needed to fit the body along the buttocks of the round, so as to bulge the absorbent body by the flexible shaft to deform, it can be brought into close contact with the recessed portion of the buttocks.

請求項に係る本発明として、前記縦方向エンボス溝は、平面視で吸収性物品の外側に向かって凸状を成す曲線で形成されている請求項1記載の吸収性物品が提供される。 As the present invention according to claim 2, wherein the longitudinal embossed grooves, the absorbent article according to claim 1 Symbol mounting is formed by a curve forming the convex shape toward the outside of the absorbent article in a plan view is provided .

上記請求項記載の発明は、前記縦方向エンボス溝を、平面視で吸収性物品の外側に向かって凸状を成す曲線で形成するものであり、脚部から圧力を受けた場合、縦方向エンボス溝によって挟まれた吸収体部分が表面側に隆起し易くなり、排血口に食い込み易くなる。 Invention of the second aspect, wherein the longitudinal embossed groove, which is formed by a curve forming the convex shape toward the outside of the absorbent article in a plan view, when subjected to pressure from the legs, the longitudinal direction absorber portion sandwiched by the embossed groove is easily raised to the surface side, is easily bite into Haichiguchi.

請求項に係る本発明として、前記縦方向エンボス溝の線幅は0.5〜3.0mmとしてある請求項1〜 いずれかに記載の吸収性物品が提供される。 As the present invention according to claim 3, the line width of the longitudinal embossed grooves absorbent article according to any one of claims 1-2 with a 0.5~3.0mm is provided.

上記請求項記載の発明は、明確なエンボス溝を形成し、かつ製品全体に硬さを出さずに装着感を良好にするため、縦方向エンボス溝の線幅を0.5〜3.0mmとするものである。 Invention of the third aspect, clear embossed groove is formed, and for better fit without producing hardness throughout the product, 0.5 to 3.0 mm line width of the longitudinal embossed grooves it is an.

請求項に係る本発明として、前記縦方向エンボス溝の後部側終端近傍より前側領域におけるエンボス溝は、相対的に低圧搾部分よりも高圧搾部分を多くし、前記縦方向エンボス溝の後部側終端近傍より後側領域におけるエンボス溝は、相対的に高圧搾部分よりも低圧搾部分を多くしてある請求項1〜3いずれかに記載の吸収性物品が提供される。 As the present invention according to claim 4, embossing grooves in the front region than the rear side near the end of the longitudinal embossed grooves, rather than a relatively low compression portion to increase the high compression portion, a rear side of the longitudinal embossed grooves embossed grooves in the rear region than near the end, the absorbent article according to claim 1 or you have many low compression portion is provided than the relatively high compression portion.

上記請求項記載の発明は、縦方向エンボス溝の吸収性物品の後部側終端近傍を境に前側と後側とでエンボス態様を変化させるものである。 Invention of the fourth aspect, the rear side near the end of the absorbent article longitudinal embossed groove as a boundary is intended to vary the embossed manner at the front and rear sides. すなわち、前記後部側終端位置より前側では相対的に低圧搾部分よりも高圧搾部分を多くすることにより吸収体が潰れ易くし、一方前記後部側終端位置より側では相対的に高圧搾部分よりも低圧搾部分を多くすることにより吸収体が潰れ難くして、排血口後部からお尻の付け根部分までの間に生じるシワやヨレを無くして、身体との間に隙間が生じないようにする。 That is, from the than relatively low compression portion at the rear side of the front side from the end position to facilitate collapsing the absorber by increasing the high compression portion, whereas a relatively high compression portion is rearwardly of said rear-side end position It is hardly crushed absorbent by increasing the low compression portion, to eliminate the wrinkles and twisting occurring until base of the buttocks from Haichiguchi rear, as no gap between the body to.

以上詳説のとおり本発明によれば、排血口後部からお尻の付け根部分までの間に生じるシワやヨレが無くなり、身体との間に隙間が生じないようになるため、後斜めからの漏れを防止できるようになる。 According to the present invention as detailed above, there is no wrinkles or twisting occurring until base of the buttocks from Haichiguchi rear to become no space between the body, the leakage from the rear obliquely It will be able to prevent.

以下、本発明の実施の形態について図面を参照しながら詳述する。 Hereinafter will be described in detail with reference to the drawings, embodiments of the present invention.
図1は本発明に係る生理用ナプキン1の展開図であり、図2は図1のII−II線矢視図である。 Figure 1 is a development view of a sanitary napkin 1 according to the present invention, FIG 2 is a taken along the line II-II of FIG 1.

前記生理用ナプキン1は、ポリエチレンシートなどからなる不透液性裏面シート2と、経血やおりものなどを速やかに透過させる透液性表面シート3と、これら両シート2,3間に介装された綿状パルプまたは合成パルプなどからなる吸収体4と、この吸収体4の形状保持および拡散性向上のために前記吸収体4を囲繞するクレープ紙5と、前記吸収体4の略両側縁部から前記裏面シート2の側縁部にかけて夫々配設されたサイド不織布6とから主に構成され、かつ前記吸収体4の周囲においては、その上下端縁部では前記不透液性裏面シート2と透液性表面シート3との外縁部がホットメルトなどの接着剤やヒートシール等の接着手段によって接合され、またその両側縁部では吸収体4よりも側方に延出している前記不透液性裏面シート2 The sanitary napkin 1 includes a liquid-impermeable backsheet 2 made of a polyethylene sheet, a liquid-permeable topsheet 3 which transmits such a rapidly menstrual blood and fabrics, interposed between these two sheets 2, 3 an absorber 4 made of a cotton-like pulp or synthetic pulp, a crepe paper 5 surrounding the absorber 4 for the absorber 4 of shape retention and diffusibility improvement, substantially opposite side edges of the absorbent body 4 It is mainly composed of the side nonwoven fabric 6 that are respectively arranged toward the side edges of the backsheet 2 from parts, and the absorbent body in the periphery of 4 and, moreover the bottom end portion the liquid-impermeable back sheet 2 the outer edge of the liquid-permeable topsheet 3 is extended are joined by adhesive means such as adhesive or heat sealing, such as hot-melt, also more laterally than the absorbent body 4 at its both side edge portions and opaque humoral backsheet 2 、前記サイド不織布6とがホットメルトなどの接着剤やヒートシール等の接着手段によって接合されている。 , And the side nonwoven fabric 6 are joined by adhesive means such as adhesive or heat sealing, such as a hot melt.

以下、具体的に前記生理用ナプキン1の構造について詳述すると、 Hereinafter, it will be described more in detail specifically the structure of the sanitary napkin 1,
前記不透液性裏面シート2は、ポリエチレン等の少なくとも遮水性を有するシート材が用いられるが、近年はムレ防止の観点から透湿性を有するものが用いられる傾向にある。 The liquid-impermeable back sheet 2 is a sheet material having at least water shielding polyethylene or the like is used, in recent years tend to have used one having a moisture permeability in terms of preventing stuffiness. この遮水・透湿性シート材としては、ポリエチレンやポリプロピレン等のオレフィン系樹脂中に無機充填剤を溶融混練してシートを成形した後、一軸または二軸方向に延伸することにより得られる微多孔性シートが好適に用いられる。 As the water barrier-breathable sheet material, after molding the sheet by melt-kneading an inorganic filler in an olefin resin such as polyethylene or polypropylene, microporous obtained by stretching uniaxially or biaxially sheet is preferably used.

次いで、前記透液性表面シート3は、有孔または無孔の不織布や多孔性プラスチックシートなどが好適に用いられる。 Then, the liquid-permeable surface sheet 3, such as nonwoven fabric or porous plastic sheet of the perforated or non-porous is preferably used. 不織布を構成する素材繊維としては、ポリエチレンまたはポリプロピレン等のオレフィン系、ポリエステル系、ポリアミド系等の合成繊維の他、レーヨンやキュプラ等の再生繊維、綿等の天然繊維とすることができ、スパンレース法、スパンボンド法、サーマルボンド法、メルトブローン法、ニードルパンチ法等の適宜の加工法によって得られた不織布を用いることができる。 The material fibers constituting the nonwoven fabric, olefin such as polyethylene or polypropylene, polyester, other synthetic fibers, polyamide or the like, can be recycled fibers such as rayon or cupra, natural fibers such as cotton to, spunlaced Law, spunbonding, thermal bonding method, or a melt blown method, nonwoven fabrics obtained by proper processing methods needle punching method or the like. これらの加工法の内、スパンレース法は柔軟性、ドレープ性に富む点で優れ、サーマルボンド法は嵩高でソフトである点で優れている。 Among these processing methods, the spun lace method is flexible, excellent in rich drapability, thermal bonding method is excellent in that they are bulky and soft.

また、前記透液性表面シート3に多数の透孔を形成した場合には、経血やおりもの等(以下、まとめて体液という。)が速やかに吸収されるようになり、ドライタッチ性に優れたものとなる。 Further, in the case of forming a plurality of through holes in the liquid-permeable surface sheet 3, such as menstrual blood and woven (hereinafter collectively referred to as body fluid.) Now is rapidly absorbed, the dry touch an excellent thing.

前記吸収体4としては、体液を吸収・保持し得るものであれば良く、積繊パルプ、エアレイド、パルプ不織布等が使用される。 As the absorber 4, as long as it can absorb and retain body fluids, fiber stacking pulp, air-laid pulp nonwoven fabric or the like is used. 一般にはフラッフ状パルプ中に吸水性ポリマー粉末を混入したものが吸収機能および価格の点から好適に使用される。 Generally those obtained by mixing water-absorbing polymer powder in a fluff pulp is preferably used from the viewpoint of absorbing function and price. 前記吸収体4は図示のごとく、形状保持等のためにクレープ紙5によって囲繞するのが望ましい。 The absorbent member 4 as shown in the drawing, it is desirable to surround the crepe paper 5 for the shape retention and the like.

前記透液性表面シート3の幅寸法は、図1に示されるように、吸収体4の幅よりも若干長めとされ、吸収体4を覆うだけに止まり、吸収体4の略両側縁部から前記裏面シート2の側縁部にかけて夫々、サイド不織布6が配設されている。 Width of the liquid-permeable surface sheet 3, as shown in FIG. 1, is slightly and longer than the width of the absorbent body 4, stop there cover the absorber 4, the substantially opposite side edges of the absorbent body 4 respectively toward the side edges of the backsheet 2, the side nonwoven fabric 6 is disposed. 前記サイド不織布6は、具体的には経血やおりもの等が浸透するのを防止する、あるいは肌触り感を高めるなどの目的に応じて、適宜の撥水処理または親水処理を施した不織布素材を用いて構成されている。 The side nonwoven fabric 6, specifically to prevent the penetration of menstrual blood and fabrics like, or depending on the purpose such as enhancing the feeling of touch, a non-woven material which has been subjected to appropriate water repellent treatment or hydrophilic treatment It is constructed using. かかるサイド不織布6としては、天然繊維、合成繊維または再生繊維などを素材として、適宜の加工法によって形成されたものを使用することができるが、好ましくはゴワ付き感を無くすとともに、ムレを防止するために、坪量を抑えて通気性を持たせた不織布を用いるのがよい。 Such side nonwoven 6, as natural fibers, synthetic fibers or materials such as recycled fibers, can be used those formed by appropriate processing methods, with preferably eliminate feeling with Gois, to prevent stuffiness Therefore, the it is preferable to use were to have a breathable nonwoven fabric with reduced basis weight. 具体的には、坪量を18〜23g/m として作製された不織布を用いるのが望ましく、かつ体液の透過を確実に防止するためにシリコン系、パラフィン系、アルキルクロミッククロリド系撥水剤などをコーティングした撥水処理不織布が好適に使用される。 Specifically, it is desirable to use a prepared nonwoven basis weight as 18~23g / m 2, and silicon in order to reliably prevent the permeation of body fluids, paraffin, alkyl chromic chloride-based water repellent, etc. coated water-repellent treatment nonwoven is preferably used.

(エンボス溝の構造) (Structure of the embossed grooves)
前記透液性表面シート3面には、排血部位Hを含む股下範囲Sに、左右対で略長手方向に沿う縦方向エンボス溝7,7が形成され、前記股下範囲Sに連続するナプキン前側部分Fに、縦方向エンボス溝7,7のナプキン前部側始端同士を結合するとともに、ナプキン前端側に凸形状の前部側幅方向エンボス溝8が形成され、前記股下範囲Sに連続するナプキン後側部分Bに、前記縦方向エンボス溝7,7のナプキン後部側終端同士を結合するとともに、ナプキン後端側に凸形状の後部側幅方向エンボス溝9が形成され、全体として閉合形状のエンボス溝11が設けられている。 Wherein the liquid-permeable topsheet 3 sides, the crotch range S including the Haiti sites H, longitudinal embossed grooves 7,7 extending along the substantially longitudinal direction are formed in the right and left pair, napkins front continuing to the crotch range S the portion F, with couples napkin front side starting end between the longitudinal embossed grooves 7,7, the front side width direction embossed groove 8 of the convex shape is formed on the napkin front side, continuous to the crotch range S napkin the rear portion B, the longitudinal as well as bind the napkin rear end between the directions embossed grooves 7,7, the rear-side width direction embossed groove 9 of the convex shape is formed on the napkin rear side, embossed as a whole closure shape grooves 11 are provided. また、前記エンボス溝11によって囲まれた領域は、図2に示されるように、吸収体4が増厚された中高部10となっている。 Also, the region surrounded by the embossed grooves 11, as shown in FIG. 2, has a domed section 10 of the absorbent body 4 is thickened. なお、前記エンボス溝11の形成位置は、前記前部側幅方向エンボス溝8の中央部Pが排血口(小陰唇)の先端に位置するようにし、前記縦方向エンボス溝7,7の長手方向略中央に排血部位Hが位置するようにするのが望ましい。 The formation positions of the embossed grooves 11, the central portion P of the front side width direction embossed groove 8 so as to be positioned at the tip of Haichiguchi (labia minora), longitudinal of the longitudinal embossed grooves 7,7 It is desirable so as to position Haiti sites H in a direction substantially central.

本ナプキン1では特に、前記縦方向エンボス溝7,7を、ナプキン後部側から前部側にかけて離間幅を狭める形状で形成するものである。 In the napkin 1 in particular, the longitudinal embossed grooves 7,7, and forms a shape narrowing the spacing widths from the napkin rear side to the front side. 従って、縦方向エンボス溝7,7に挟まれた中高吸収体10は、後部側で十分な広さが保持でき、かつ図3に示されるように、両脚付け根部分から圧力を受けたとしても、シワやヨレは相対的に離間幅が狭くなっている前端側に逃げるように延びるため、後部側12にはシワやヨレが発生しづらく、身体との間に隙間が生じ難くなるため、後斜めからの漏れを防止できるようになる。 Thus, medium and high absorbent body 10 sandwiched in the vertical direction embossing grooves 7, 7, the rear side can hold is wide enough, and as shown in FIG. 3, even when under pressure from the legs root portion, since the wrinkles and twisting extending to escape to the front side relatively spaced width is narrowed, wrinkles and kinks hardly generated in the rear side 12, a gap hardly occurs between the body, the rear oblique so it can be prevented leakage from.

前記縦方向エンボス溝7,7の形状(幅、長さ、勾配)は身体の股部形状に合わせるようにするのが望ましい。 The longitudinal shape of the embossed grooves 7,7 (width, length, gradient) it is desirable to make fit the crotch shape of the body. 具体的には、前記方向エンボス溝7,7は、ナプキン前部側始端の離間幅FLが20〜40mm、好ましくは25〜35mm、ナプキン後部側終端の離間幅BLが50〜60mmとするのが望ましい。 Specifically, the direction embossing grooves 7, 7 napkin front side starting end of the spacing width FL is 20 to 40 mm, preferably 25 to 35 mm, spaced width BL of the napkin rear side termination is given to the 50~60mm desirable. ナプキン前部側始端の離間幅FLが20mm未満の場合は排血口の幅以下となり漏れを防止難くなる。 Spacing width FL of the napkin front side starting end in the case of less than 20mm becomes stiffer prevent leakage becomes less than the width of Haichiguchi. 40mmを超える場合には、前記ナプキン後部側終端の離間幅BLとの差が小さくなり縦方向エンボス溝7,7の傾斜(勾配)が緩やかになるため、シワやヨレが前端側に逃げづらくなり後部側12にシワやヨレが発生してしまうことになる。 When it exceeds 40mm, the the inclined napkins rear difference between spacing width BL of the terminal is reduced longitudinal embossed grooves 7,7 (gradient) becomes moderate, wrinkles and kinks becomes difficult escape to the front side wrinkles or kinks would occur in the rear side 12. 一方、ナプキン後部側終端の離間幅BLの寸法は平均的日本人体型の排血口端部に当たる部分の幅として設定されるものである。 On the other hand, the dimensions of the spacing width BL of the napkin rear end of which are set as the width of the portion impinging on Haichiguchi end of an average Japanese type.

また、前記縦方向エンボス溝7,7の線幅は0.5〜3.0mmとするのが望ましい。 The line width of the longitudinal embossed grooves 7,7 is desirably a 0.5 to 3.0 mm. 前記線幅が0.5mm未満では明確なエンボス溝を形成することができず、3.0mmを超える場合には、製品全体に硬さで出てしまい装着感を損なうことになる。 The line width can not be formed a distinct embossed grooves is less than 0.5 mm, in the case of more than 3.0mm would impair the wearing comfort come out of a hard throughout the product is.

前記縦方向エンボス溝7,7は、平面視で吸収性物品の外側に向かって緩やかな凸状を成す曲線で形成されていることが望ましい。 The longitudinal embossed grooves 7,7 is preferably formed by a curve constituting a gentle convex shape toward the outside of the absorbent article in a plan view. 脚部から圧力を受けた場合、縦方向エンボス溝7,7によって挟まれた吸収体部分が表面側に隆起し易くなり、排血口に食い込み易くなる。 When subjected to pressure from the leg portion, the absorber portion sandwiched by the longitudinal embossed grooves 7,7 is easily raised to the surface side, is easily bite into Haichiguchi.

エンボス溝11の形成態様は、図4に示されるように、縦方向エンボス溝7,7の後部側終端近傍より前側領域EFにおけるエンボス溝は、相対的に低圧搾部分よりも高圧搾部分を多くし、前記縦方向エンボス溝7,7の後部側終端近傍より後側領域EBにおけるエンボス溝は、相対的に高圧搾部分よりも低圧搾部分を多くするのが望ましい。 Formation of the embossed grooves 11, as shown in FIG. 4, the embossed grooves in the anterior region EF from the rear side near the end of the longitudinal embossed grooves 7,7 are many high compression portion than the relatively low compression portion and, embossing the groove in the rear region EB from the rear side near the end of the longitudinal embossed groove 7, 7 than the relatively high compression portion to increase the low compression portion is desirable. 図示例では、前記前側領域EFにおけるエンボス溝をすべて高圧搾エンボス12aとし、前記後側領域EBにおけるエンボス溝は幅方向に高圧搾エンボス12aと低圧搾エンボス12bとが交互に存在するとともに、低圧搾エンボス12bの面積が多くなるようにしている。 In the illustrated example, together with the all the embossed grooves in the anterior region EF and high compression embossing 12a, embossed grooves in the rear region EB is a high compression embossing 12a in the width direction and low compression embossed 12b are alternately present, low compression the area of ​​the embossed 12b is made to be large. 前記前側領域EFでは、相対的に低圧搾部分よりも高圧搾部分を多くすることにより吸収体4、10が潰れ易くし、一方前記後側領域EBでは相対的に高圧搾部分よりも低圧搾部分を多くすることにより吸収体4,10が潰れ難くして、排血口後部からお尻の付け根部分までの間に生じるシワやヨレを無くして、身体との間に隙間が生じないようにする。 Wherein the front region EF, relatively to facilitate collapsing the absorber 4, 10 by also increasing the high compression portion than the low compression portion, whereas low compression portion than the rear region EB in relatively high compression portion the was hardly crushed the absorber 4, 10 by many, to eliminate the wrinkles and twist that occurs until the base of the ass from Haichiguchi rear, so as not to create a gap between the body .

前記後部側幅方向エンボス溝9は、図5に示されるように、幅方向中央部で溝幅を最大とし、側部側に行くに従って漸次溝幅を狭めた、平面視で略三日月形状を成すエンボス溝とすることができる。 It said rear-side width direction embossed groove 9, as shown in FIG. 5, the maximum groove width at the widthwise central portion, narrowed progressively groove width toward the side portion, an approximately crescent shape in plan view It may be embossed grooves. 平面視で略三日月形状を成すエンボス溝とすることで、中央部分ではエンボス剛性を高くし、側部に行くに従ってエンボス剛性を徐々に小さくすることにより、中央部分で吸収体4,10にシワやヨレが出来にくくすることができる。 With embossed grooves having a substantially crescent shape in a plan view, a higher embossing rigidity in the central portion, by gradually decreasing the embossing rigidity toward the side, wrinkles Ya the absorber 4,10 in the central portion twist can be less likely to be. この場合、前記高圧搾部12aは、図6(A)に示されるように、溝幅全長に亘り形成するようにしてもよいが、図6(B)に示されるように、ヨレやシワを発生し難くするため、中間に低圧搾部12bを入れながら溝幅方向に沿って形成するようにしてもよい。 In this case, the high compression portion 12a, as shown in FIG. 6 (A), may be formed over the groove width total length, as shown in FIG. 6 (B), the twist or wrinkle to hardly occurs, it may be formed along the groove width direction while taking the low compression portion 12b in the middle.

一方、前記吸収体4において、図7に示されるように、縦方向エンボス溝7,7 幅方向略中央位置であってかつ裏面側に、ナプキン長手方向に沿って凹状エンボス溝13を形成することも可能である。 On the other hand, in the absorbent body 4, as shown in FIG. 7, a widthwise substantially middle position between the longitudinal embossed grooves 7,7 and the rear surface side, a concave-pattern groove 13 along the napkin longitudinally formed it is also possible to. 前記凹状エンボス溝13は、凹状溝軸部分が他の部分よりも薄肉化され、剛性(断面二次モーメント)が低下することにより、凹状エンボス溝13を可撓軸(長手方向可撓軸)として横断方向の変形性能が確保され、装着状態では、前記横断方向で前記可撓軸部分が角折れするように変形し、臀部の丸みに沿うように身体にフィットするようになるとともに、前記可撓軸により吸収体を隆起させるように変形するため、お尻の窪み部分に密着させることができるようになる。 The concave-pattern grooves 13 recessed Mizojiku portion is thinner than other portions, by the rigidity (moment of inertia of) decreases, the concave-pattern groove 13 as flexible shaft (longitudinal flexible shaft) Ductility transverse direction is secured, in the mounted state, together with the said flexible shaft portion in the transverse direction is deformed so as to break the corners, so to fit the body along the buttocks of roundness, the flexible to deformed so as to bulge the absorber by a shaft, so can be brought into close contact with the recessed portion of the buttocks.

〔他の形態例〕 [Other Embodiments]
(1)上記形態例では、前記左右対の縦方向エンボス溝7,7、前部側幅方向エンボス溝8および後部側幅方向エンボス溝9により、全体として閉合形状のエンボス溝11を形成するようにしたが、図8に示されるように、前記前部側幅方向エンボス溝8および後部側幅方向エンボス溝9は、左右対の縦方向エンボス溝7,7から不連続としてもよい。 (1) In the above embodiment, the longitudinal embossed grooves 7,7 of the left and right pair, by the front side width direction embossed grooves 8 and the rear-side width direction embossed groove 9, so as to form embossed groove 11 as a whole closure shape Although the the, as shown in FIG. 8, the front-side width direction embossed grooves 8 and the rear-side width direction embossed grooves 9 may be discontinuous from the longitudinal embossed grooves 7,7 of the left and right pairs.
(2)また、図9に示されるように、前部側幅方向エンボス溝8および後部側幅方向エンボス溝9を省略して、前記左右対の縦方向エンボス溝7,7のみを形成するようにしてもよい。 (2) Further, as shown in FIG. 9, is omitted front side width direction embossed grooves 8 and the rear-side width direction embossed groove 9, so as to form only a longitudinal embossed grooves 7,7 of the left and right pairs it may be.
(3)前記後部側幅方向エンボス9は、図10に示されるように、両側部分に吸収性物品の後端側に凸状を成す左右対の凸状曲線部9a、9a及び前記凸状曲線部分9a、9aの間に存在する凹状曲線部9bからなる、平面視で略W字状曲線を成すエンボス溝とすることもできる。 (3) the rear side width direction embossing 9, as shown in FIG. 10, the convex curved portion 9a of the left and right pairs that form a convex on the rear end side of the absorbent article on both side portions, 9a and the convex curve portions 9a, made of concave curved portion 9b existing between 9a, can be embossed grooves having a substantially W-shaped curve in plan view. 平面視で略W字状曲線を成すエンボス溝とすることにより、両脚部から圧力を受けた際に、身体側に隆起するように山折りとなって身体に密着し易くなる。 With embossed grooves having a substantially W-shaped curve in a plan view, when subjected to pressure from the legs, is easily adhered to the body becomes mountain fold so as to bulge to the body side.
(4)上記形態例では、前記左右対の縦方向エンボス溝7,7、前部側幅方向エンボス溝8および後部側幅方向エンボス溝9により、全体として閉合形状のエンボス溝11を形成するようにしたが、前記エンボス溝11以外のエンボスを別途付加することも可能である。 (4) In the above embodiment, the longitudinal embossed grooves 7,7 of the left and right pair, by the front side width direction embossed grooves 8 and the rear-side width direction embossed groove 9, so as to form embossed groove 11 as a whole closure shape It was in, it is also possible to separately adding embossing other than the embossing groove 11.

本発明に係る生理用ナプキン1の平面図である。 It is a plan view of a sanitary napkin 1 according to the present invention. 図1のII−II線矢視図である。 It is taken along the line II-II of FIG 1. エンボス溝11領域のシワ・ヨレの形成状態を示す図である。 It is a diagram showing a state of formation of wrinkles twisting of the embossed groove 11 region. エンボス溝11の形成態様を示す要部平面図である。 It is a fragmentary plan view showing the formation of the embossed grooves 11. エンボス溝11の他の形成態様を示す要部平面図である。 It is a fragmentary plan view showing another formation of the embossed grooves 11. エンボス溝11の他の形成態様を示す要部平面図である。 It is a fragmentary plan view showing another formation of the embossed grooves 11. 裏面側凹状エンボス溝13の形成態様を示す要部平面図である。 Is a fragmentary plan view showing the formation of the back surface side recessed embossed groove 13. 本発明に係る生理用ナプキン1の変形例を示す平面図である。 Is a plan view showing a modified example of the sanitary napkin 1 according to the present invention. 本発明に係る生理用ナプキン1の変形例を示す平面図である。 Is a plan view showing a modified example of the sanitary napkin 1 according to the present invention. 後部側幅方向エンボス9の他の形態例を示すナプキン平面図である。 A napkin plan view showing another embodiment of a rear-side width direction embossing 9. 縦方向エンボスが形成された従来ナプキン(その1)を示す視図である。 Conventional longitudinal embossing is formed napkins is a plan view showing a (first). 縦方向エンボスが形成された従来ナプキン(その2)を示す平面図である。 Conventional napkin longitudinally embossed is formed is a plan view showing a (second).

1…生理用ナプキン、2…不透液性裏面シート、3…透液性表面シート、4…吸収体、5…クレープ紙、6…サイド不織布、7…縦方向エンボス溝、8…前部弧状幅方向エンボス、9…後部弧状幅方向エンボス、10…中高部、H…排血部位 1 ... sanitary napkin, 2 ... liquid-impermeable back sheet, 3 ... liquid-permeable surface sheet 4 absorber 5 crepe paper, 6 ... side nonwoven, 7 ... longitudinal embossed groove, 8 ... front arcuate width direction embossing, 9 ... rear arcuate width direction embossing, 10 ... domed section, H ... Haiti sites

Claims (4)

  1. 透液性表面シートと、裏面シートとの間に吸収体が介在され、前記透液性表面シート面側に、 排血部位を含む股下範囲に左右対で略長手方向に沿う縦方向エンボス溝が形成された吸収性物品において、 A liquid-permeable topsheet, a absorber interposed between the backsheet and the liquid-permeable surface sheet side, the longitudinal embossed grooves along substantially longitudinally horizontally versus the crotch area including Haiti sites in the formed absorbent article,
    前記縦方向エンボス溝は、吸収性物品の後部側から前部側にかけて離間幅を狭める形状とし、 前記縦方向エンボス溝の前部側始端同士を結合するとともに、前端側に凸状の前部側幅方向エンボス溝が形成され、前記縦方向エンボス溝の後部側終端同士を結合する後部側幅方向エンボス溝が形成され、全体として閉合形状のエンボス溝が形成されるとともに、この閉合形状エンボス溝によって囲まれた領域が吸収体が増厚された中高部とされ、 The longitudinal embossed grooves, a shape narrowing the spacing widths toward the front side from the rear side of the absorbent article, the longitudinal as well as binding the front side starting end to each other in the direction embossing grooves, the front side of the convex front side widthwise embossed groove is formed, the rear-side width direction embossed grooves for coupling the rear side end between the longitudinal embossed groove is formed, together with embossed groove as a whole closure shape is formed, by the closure shapes embossed grooves region surrounded by the absorber is a domed portion which is thickened,
    前記縦方向エンボス溝の前部側始端間の離間幅が20〜40mmとされ、前記縦方向エンボス溝の後部側終端間の離間幅が50〜60mmとされ、 The separation width between the front side starting end of the longitudinal embossed groove is between 20 to 40 mm, spaced width between the rear side end of the longitudinal embossed groove is between 50 to 60 mm,
    前記後部側幅方向エンボス溝は、両側部分に吸収性物品の後端側に凸状を成す左右対の凸状曲線部と、これら凸状曲線部の間に存在する凹状曲線部とからなる平面視で略W字状曲線を成すエンボス溝とされ、 Said rear-side width direction embossed groove is a plan consisting of a convex curved portion of the left and right pairs that form a convex on the rear end side of the absorbent article on both side portions, a concave curved portion which is present between these convexly curved portion is embossed grooves having a substantially W-shaped curve in view,
    前記吸収体において、 前記縦方向エンボス溝間の幅方向略中央位置であってかつ裏面側に、吸収性物品の長手方向に沿って凹状エンボス溝が形成されていることを特徴とする吸収性物品。 In the absorbent body, the absorbent article, characterized in that the substantially transverse direction between the longitudinal direction embossed grooves a central position and on the back side, concave embossed grooves along the longitudinal direction of the absorbent article is formed .
  2. 前記縦方向エンボス溝は、平面視で吸収性物品の外側に向かって凸状を成す曲線で形成されている請求項1記載の吸収性物品。 The longitudinal embossed grooves, the absorbent article according to claim 1 Symbol mounting is formed by a curve forming the convex shape toward the outside of the absorbent article in a plan view.
  3. 前記縦方向エンボス溝の線幅は0.5〜3.0mmとしてある請求項1〜 いずれかに記載の吸収性物品。 The absorbent article according to any one of claims 1-2 line width of the longitudinal embossed grooves have a as a 0.5 to 3.0 mm.
  4. 前記縦方向エンボス溝の後部側終端近傍より前側領域におけるエンボス溝は、相対的に低圧搾部分よりも高圧搾部分を多くし、前記縦方向エンボス溝の後部側終端近傍より後側領域におけるエンボス溝は、相対的に高圧搾部分よりも低圧搾部分を多くしてある請求項1〜3いずれかに記載の吸収性物品。 Embossed grooves in the front region than the rear side near the end of the longitudinal embossed grooves, relatively than low compression portion to increase the high compression portion, the embossed grooves in the rear area than the rear side near the end of the longitudinal embossed grooves the absorbent article according to any one of claims 1 to 3 that is by increasing the low compression portion than relatively high compression portion.
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