JPH10328232A - Absorbent article - Google Patents

Absorbent article

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Publication number
JPH10328232A
JPH10328232A JP9138089A JP13808997A JPH10328232A JP H10328232 A JPH10328232 A JP H10328232A JP 9138089 A JP9138089 A JP 9138089A JP 13808997 A JP13808997 A JP 13808997A JP H10328232 A JPH10328232 A JP H10328232A
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JP
Japan
Prior art keywords
portion
absorbent article
absorbent
liquid
grooves
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP9138089A
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Japanese (ja)
Other versions
JP3850102B2 (en
Inventor
Yoshiji Hamashima
Tetsuya Kusakawa
Minoru Nakanishi
Yasuo Toyoshima
稔 中西
美次 濱島
哲哉 草川
泰生 豊島
Original Assignee
Kao Corp
花王株式会社
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Publication date
Application filed by Kao Corp, 花王株式会社 filed Critical Kao Corp
Priority to JP13808997A priority Critical patent/JP3850102B2/en
Publication of JPH10328232A publication Critical patent/JPH10328232A/en
Application granted granted Critical
Publication of JP3850102B2 publication Critical patent/JP3850102B2/en
Anticipated expiration legal-status Critical
Application status is Expired - Fee Related legal-status Critical

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Abstract

PROBLEM TO BE SOLVED: To provide an absorbent article, which when worn takes a predetermined shape with an excellent fit, using simple constitution without requiring a large amount of materials, and which has an leak-preventing property.
SOLUTION: In an absorbent article 1, which includes a liquid-permeable layer on its. side abutting to the skin, a liquid-impermeable layer on its side not abutting to the skin, and an absorbing part interposed between the liquid- permeable layer P and the liquid-impermeable layer, and which is made substantially oblong, a raised part 13a raised toward the abutting side to the skin and extending in the longitudinal direction of the absorbent article 1 is provided at the center of the absorbing part, and a pair of grooves 17, 17 extending in the longitudinal direction of the absorbent article 1 are provided in the side of the absorbing part corresponding to the raised part 13a and not abutting to the skin. The liquid-impermeable layer comprises a liquid-impermeable back sheet 12b, which is arranged on a plane and not grooved along the pair of grooves 17, 1 7 in the absorbing part A.
COPYRIGHT: (C)1998,JPO

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【発明の属する技術分野】本発明は、生理用ナプキンや失禁パッド等の、人間の股間に装着され体液を吸収する吸収性物品に関し、更に詳細には、多量の材料を必要とせず簡単な構成で、装着時にフィット性に優れた所定の形状となり、漏れ防止性に優れた吸収性物品に関する。 BACKGROUND OF THE INVENTION The present invention provides such a sanitary napkin or incontinent pad, relates an absorbent article that absorbs mounted on a human crotch body fluid, more particularly, simple without requiring a large amount of material composition in becomes a predetermined shape with excellent fit when worn relates to an absorbent article which is excellent in leakage prevention property.

【0002】 [0002]

【従来の技術及び発明が解決しようとする課題】一般に、肌当接面側に液透過層と、非肌当接面側に液不透過層と、該液透過層及び該液不透過層の間に介在された吸収部とを備えた吸収性物品はよく知られている。 Generally BACKGROUND OF INVENTION Problems to be Solved], and the liquid permeable layer to the skin contact surface side, a liquid-impermeable layer to the non-skin contact surface side, of the liquid permeable layer and said liquid impermeable layer absorbent articles with an intervening absorption unit while is well known. この様な吸収性物品は、生理用ナプキン、失禁用パッド、パンティーライナー等として用いられており、装着者に良好にフィットし漏れを良好に防止することが大切である。 Such absorbent articles, sanitary napkins, incontinence pads, are used as panty liners and the like, it is important to satisfactorily prevent a good fit and leak to the wearer.

【0003】そのため、従来より、吸収性物品をその幅方向中央を肌当接面側に高く形成することにより装着者に良好にフィットさせて漏れを回避する技術が種々提案されている。 [0003] Therefore, conventionally, the absorbent article well fitted to the wearer by increasing form the widthwise center skin contact surface side to avoid leakage techniques have been proposed. 特開昭61−56647号公報に記載の技術では、吸収性物品全体を折り畳んで幅方向中央部を肌当接面側に中高としている。 In the technique disclosed in JP 61-56647 and JP have a convex width direction central portion to the skin contact surface side fold the entire absorbent article. また、特公平5−7341 In addition, Kokoku 5-7341
9号公報に記載の技術では、幅方向中央部にもう一枚の吸収性物品を重ねて中高としている。 In the technique described in 9 JP, and the mid-high stacked to another sheet of the absorbent article in the width direction central portion. 更に、特開平8− Further, JP-A-8-
117277号公報に記載の技術では、均一の厚さの吸収体の幅方向中央に合成繊維性の第2の吸収体をエンボス加工により一体化して設けて中高としている。 In the technique described in 117277 JP, and the mid-high is provided by the first center in the width direction of the uniform thickness of the absorber synthetic fibrous 2 absorber integrated by embossing. 特開平8−38550号公報に記載の技術では、吸収体の成形の段階から木材パルプや合成繊維により中高の厚みを有する吸収体を製造してして用いている。 In the technique disclosed in JP-A-8-38550, it is used to manufacture the absorbent body having a thickness of middle and high by stages from and wood pulp synthetic fibers molded in the absorber.

【0004】しかし、特開昭61−56647号公報に記載されるような、吸収性物品全体を折り畳む技術では、吸収部どうしの間に液不透過層を形成する裏面シート等の部材が介在配置されるために、体液の移行性に優れておらず実質的な体液の吸収能があまり増加されずに漏れ防止効果が不十分となる、構成材料全てが多量に必要である等の問題点がある。 However, as described in JP-A-61-56647, the technique of folding the entire absorbent article, member interposed backsheet such as to form a liquid-impermeable layer between the absorber each other to be, the effect of preventing leakage without absorption capacity of substantial fluid not superior migration of the body fluid is much increased is insufficient, problems like all construction materials are large amounts needed is there. 特公平5−73419号公報に記載されるような、幅方向中央部に吸収性物品を重ねる技術では、重ねられた吸収性物品の吸収体間裏面シート等の液不透過性の部材が介在配置するために体液の移行性に優れておらず実質的な体液の吸収能があまり増加されずに漏れ防止効果が不十分となる、構造が複雑である等の問題点がある。 As described in KOKOKU 5-73419 discloses, in the technique overlaying an absorbent article in the widthwise direction central portion, the liquid backsheet such inter absorber superimposed absorbent article impermeable member interposed absorption capacity of migration to no good substantial fluid body fluid becomes insufficient effect of preventing leakage without being much increased to, there are problems like structure is complicated. 特開平8−117277号公報に記載されるような、幅方向中央に合成繊維性の第2の吸収体を一体化して設ける技術や、特開平8−3855 As described in JP-A-8-117277, techniques and provided by integrating the second absorber synthetic fibrous center in the width direction, JP-A-8-3855
0号公報に記載されるような、中高の吸収体を製造して用いる技術では、幅方向中央における吸収能は増加されるが、側縁部がヨレ易く、側縁部におけるフィット性が損なわれて漏れにつながるおそれがある。 No. 0, as described in Japanese, in the technology used to manufacture the absorber medium and high, although the absorption capacity in the width direction center is increased, easy lateral edges twisted, fit in the side edge is damaged It can lead to leakage Te.

【0005】従って、本発明の目的は、多量の材料を必要とせず簡単な構成で、装着時にフィット性に優れた所定の形状となり、漏れ防止性に優れた吸収性物品を提供することにある。 It is therefore an object of the present invention, with a simple structure without requiring a large amount of material, becomes a predetermined shape with excellent fit when worn, is to provide a superior absorbent article leakproof .

【0006】本発明は、肌当接面側に液透過層と、非肌当接面側に液不透過層と、該液透過層及び該液不透過層の間に介在された吸収部とを備え、実質的に縦長に形成されてなる吸収性物品において、上記吸収部の中央部に、肌当接面側へ隆起した上記吸収性物品の長手方向に延びる隆起部を備え、該隆起部に対応する上記吸収部の非肌当接面側には、上記吸収性物品の長手方向に延びる溝を備えており、上記液不透過層は液不透過性の裏面シートからなり、該裏面シートは、平面状に配され、且つ上記吸収部の上記溝に沿う溝加工が施されていないことを特徴とする吸収性物品を提供することにより、上記目的を達成したものである。 [0006] The present invention includes a liquid permeable layer to the skin contact surface side, a liquid-impermeable layer to the non-skin contact surface side, an absorbent portion which is interposed between the liquid permeable layer and said liquid impermeable layer the provided, in an absorbent article comprising a substantially elongated form, in the central portion of the absorbent portion includes a raised portion extending in the longitudinal direction of the skin raised above the absorbent article to the contact surface side, the raised portion the skin noncontacting side of the absorbent portion corresponding to, provided with a groove extending in the longitudinal direction of the absorbent article, the liquid impermeable layer is made of liquid-impermeable back sheet, the back sheet by providing an absorbent article, characterized in that arranged in a planar shape, a groove machining and along the groove of the absorber is not performed, it is obtained by achieving the above object.

【0007】 [0007]

【発明の実施の形態】以下、本発明の吸収性物品の一の実施形態について図面を参照しながら具体的に説明する。 BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, will be described in detail with reference to the accompanying drawings, an embodiment of an absorbent article of the present invention. 図1は、本発明の吸収性物品の一の実施形態としての生理用ナプキンを肌当接面側から見た示す平面図であり、図2は、図1の生理用ナプキンのI−I断面図であり、図3は、図1の生理用ナプキンの吸収体のI−I断面図であり、図4は、図1の生理用ナプキンのJ−J断面図であり、図5は、図1の生理用ナプキンの吸収体を非肌当接面側から見た拡大平面図であり、図6は図1の生理用ナプキンの吸収体のK−K断面図であり、図7は図1の生理用ナプキンの装着状態を示すI−I断面図であり、図8は図1の生理用ナプキンの製造工程の一部を示す図である。 Figure 1 is a plan view showing a sanitary napkin viewed from the skin contact surface side as an embodiment of an absorbent article of the present invention, FIG. 2, I-I cross section of the sanitary napkin of Figure 1 a diagram, FIG. 3 is a I-I sectional view of the absorbent body of the sanitary napkin of Figure 1, Figure 4 is a J-J cross-sectional view of the sanitary napkin of Figure 1, Figure 5, Figure is an enlarged plan view of the first absorber of the sanitary napkin from the non-skin contact surface side, FIG. 6 is a K-K cross-sectional view of the absorbent body of the sanitary napkin of Figure 1, Figure 7 Figure 1 a I-I sectional view showing a mounted state of the sanitary napkin. FIG. 8 is a diagram showing a part of the manufacturing process of the sanitary napkin of Figure 1.

【0008】本実施形態の吸収性物品(生理用ナプキン)1は、図1又は図2に示すように、肌当接面側に液透過層Pと、非肌当接面側に液不透過層Iと、該液透過層P及び該液不透過層Iの間に介在された吸収部Aとを備え、実質的に縦長に形成されている。 [0008] The absorbent article of the present embodiment (sanitary napkin) 1, as shown in FIG. 1 or FIG. 2, the liquid permeable layer P to the skin contact surface side, a liquid impermeable to the non-skin contact surface side a layer I, and an absorbing portion a that is interposed between said liquid permeable layer P and the liquid impermeable layer I, is substantially vertically formed.

【0009】更に詳述すると、本実施形態の生理用ナプキン1では、上記液透過層Pは液透過性の表面シート1 [0009] More specifically, in the sanitary napkin 1 of the present embodiment, the liquid permeable layer P is liquid-permeable topsheet 1
1により形成されており、上記液不透過層Iは液不透過性のシートである第1の裏面シート12a及び第2の裏面シート12bにより形成されており、吸収部Aは吸収体13により形成されている。 1 is formed by, the liquid impermeable layer I is formed by the first back sheet 12a and the second backsheet 12b is a sheet of liquid-impermeable, the absorbing portion A formed by the absorber 13 It is. そして、本実施形態の生理用ナプキン1では、図2に示すように、吸収体13の非肌当接面側の面と両側面及び肌当接面側の面の両側縁部とが第2の裏面シート12bに被覆され、これら吸収体13と第2の裏面シート12bとが、表面シート11 Then, in the sanitary napkin 1 of the present embodiment, as shown in FIG. 2, the absorbent body of the non-skin contact surface side of the 13 surface and the side surfaces and the skin contact surface of the side surface side edge portions and the second is the coating on the back sheet 12b, these absorbers 13 and the second backsheet 12b is, the topsheet 11
と第2の裏面シートの非肌当接面側に面接配置された上記第1の裏面シート12aとに挟持されてナプキン本体10が形成されている。 When above are interviewed disposed at the non-skin contact surface side of the second backsheet first backsheet 12a and the napkin body 10 is sandwiched are formed. このナプキン本体10は、両側縁部が肌当接面側から熱溶着加工が施されており、表面シート11及び第2の裏面シート12bが吸収体13に熱溶着された熱溶着部14,14が形成されている。 The napkin main body 10, both side edge portion is heat welded processing is given from the skin contact surface side, the top sheet 11 and the heat seal parts 14 and 14 the second backsheet 12b is thermally welded to the absorbent body 13 There has been formed. 表面シート11と吸収体13とはナプキン本体10の側縁部において熱溶着により固着されて熱溶着部14,14 The topsheet 11 and the absorbent body 13 is fixed by thermal welding the side edges of the napkin body 10 heat seal parts 14, 14
が形成されており、上記第2の裏面シート12bと吸収体13とはナプキン本体10の側縁部においてホットメルト剤15,15により固着されている。 There are formed, is fixed by a hot-melt adhesive 15, 15 in the side edges of the napkin body 10 and the second backsheet 12b and the absorber 13.

【0010】上記表面シート11及び上記第1の裏面シート12aはナプキン本体10の左右両側縁部から幅方向外方に延出されており、ウイング20,20が形成されている。 [0010] The surface sheet 11 and the first back sheet 12a is extended from the right and left side edges of the napkin body 10 outwardly in the widthwise direction, wings 20, 20 are formed. 上記表面シート11と上記第1の裏面シート12aとはそれぞれの周縁部において互いに固着されている。 They are secured to each other in each of the peripheral portion and the topsheet 11 and the first backsheet 12a.

【0011】上記第1の裏面シート12aには、ナプキン本体10の長手方向中央部において粘着剤が塗布又はされて粘着部16が形成されており、装着時に該粘着部16を介して生理用ナプキン1を下着に固定するようになっている。 [0011] above the first backsheet 12a, the longitudinal adhesive in the direction central portion is applied or by the adhesive portion 16 is formed, the sanitary napkin via the PSA unit 16 when mounting the napkin main body 10 It is adapted to secure 1 to underwear. この粘着部16は剥離紙(図示せず)により保護されている。 The adhesive portion 16 is protected by release paper (not shown).

【0012】これらの構成については、従来の生理用ナプキンと同じであり、上記表面シート11の形成材料としては、不織布や開孔フィルム等、従来より用いられているものを特に制限なく用いることができる。 [0012] These configurations are the same as conventional sanitary napkin, as the material for forming the topsheet 11, a nonwoven fabric or perforated film or the like, be used without any particular limitation those which have been conventionally used it can. 上記第1 The first
の裏面シート12a及び上記第2の裏面シート12bの形成材料としても、防漏性のフィルム、ポリエチレンラミネート防水紙、ポリエチレンラミネート不織布等、従来より用いられているものを特に制限なく用いることができる。 Also as the material of the back sheet 12a and the second backsheet 12b of can leak-proof properties of the film, polyethylene-laminated waterproof paper, polyethylene laminated nonwoven fabrics and the like, may be used without any particular limitation those which have been used conventionally. 更に、上記熱溶着部14,14も従来の技術を特に制限なく用いて設けることができ、上記ホットメルト剤15,15も従来より用いられているものを特に制限なく用いることができる。 Furthermore, the heat welded portion 14, 14 can also be provided with no particular limitation to the prior art, the hot melt adhesive 15 and 15 may be used without particular limitation, which has been conventionally used. 上記粘着部16も、従来の粘着剤を特に制限なく用い従来の技術を特に制限なく用いて設けることができる。 The adhesive section 16 is also used without any particular limitation conventional adhesive can be provided with no particular limitation to the prior art.

【0013】而して、本形態の生理用ナプキン1は、上記吸収体13の中央部に、図2及び図3にも示すように、肌当接面側へ隆起した、上記生理用ナプキン1の長手方向に延びる隆起部13aを備えており、上記隆起部13aに対応する吸収体13の非肌当接面側には、生理用ナプキン1の長手方向に延びる一対の溝17,17を備えている。 [0013] In Thus, the sanitary napkin 1 of this embodiment, the central portion of the absorbent body 13, as shown in FIGS. 2 and 3, and raised to the skin contact surface side, the sanitary napkin 1 includes a raised portion 13a which extends in the longitudinal direction, the non-skin contact surface side of the absorbent body 13 corresponding to the raised portion 13a is provided with a pair of grooves 17, 17 extending in the longitudinal direction of the sanitary napkin 1 ing.

【0014】更に詳述すると、本実施形態の生理用ナプキン1においては、上記吸収体13の隆起部13aは、 [0014] More specifically, in the sanitary napkin 1 of the present embodiment, the raised portion 13a of the absorber 13,
図1に示すように、吸収体13の中央部から後方部にかけて形成されており、中央部においては幅広に、後方へゆくに従い先細に形成されている。 As shown in FIG. 1, is formed to the rear from the central portion of the absorbent body 13, wider in the central part, it is tapered in accordance yuku backward. また、中央部においては前方側と後方側とが最も幅広くその間において若干狭まって側縁が幅方向内側に凸の円弧形状をなすように形成されている。 Moreover, it is formed so as to form a front side and a rear side and is most widely arcuate side edge of the convex inward in the width direction narrowed slightly in between in the central portion. 上記隆起部13aは、該隆起部13a The ridges 13a are the raised portions 13a
を装着者の体液排泄部に違和感なく且つ良好に当接させ優れた防漏性を得るためには、最も前方側における幅W To obtain without discomfort and favorably excellent leakproofness is brought into contact with the body fluid excretion portion of the wearer, the width at the most front side W
1は20〜60mmであり、中央部における最も幅狭な部分の幅W 2は15〜40mmであることが好ましい。 1 is 20 to 60 mm, the width W 2 of the narrowest portion in the central portion is preferably 15 to 40 mm.
更に上記隆起部13aの吸収体13の中央部における円弧形状の側縁は、装着者の体液漏出部への良好なフィット性を得るためには、その曲率半径が30〜300mm Furthermore the side edges of the arc-shaped in the central portion of the absorbent body 13 of the raised portion 13a in order to obtain a good fit of the body fluid leaking portion of the wearer, the radius of curvature 30~300mm
であることが好ましいが、中央部における幅W 2が15 Although it is preferable that the width W 2 in the central portion 15
〜40mmであれば、製造の容易から長方形のものとなっていても良い。 If ~40Mm, may become a thing of ease of manufacture of the rectangle.

【0015】上記吸収体13は、2.5g/cm 2加重下における隆起部13aの形成されている部分の厚み(図3に示すT 1 )が7mmで、隆起部13aの形成されていない部分の厚み(図3に示すT 2 )が4mmとなっており、隆起部13aの隆起高さ(隆起部13aの形成されている部分と隆起部13aの形成されていない部分との厚みの差、図3に示すT 3 )が3mmとなっている。 [0015] The absorbent body 13, part thickness of the portion formed of the raised portion 13a of 2.5 g / cm 2 weight under (T 1 shown in FIG. 3) is at 7 mm, not formed with the ridges 13a the thickness of (T 2 shown in FIG. 3) has become a 4 mm, the difference in thickness between the protrusion height (is not formed part of the portion and the raised portion 13a formed in the raised portion 13a of the ridges 13a, T 3 3) is in the 3 mm. 隆起部13aの形成されている部分の2.5g/c 2.5 g / c of a portion which is formed of the raised portion 13a
2加重下における厚みT thickness at m 2 weight under T 1は3〜15mmであることが好ましく、5〜12mmであることがより好ましい。 Preferably 1 is 3 to 15 mm, more preferably 5-12 mm.
3mm未満では、中央部に好ましいフィット性を得る事が出来ず、15mm超では、逆に厚くなりすぎ違和感となってしまい好ましくない。 If it is less than 3mm, it is not possible to obtain a desirable fit in the center, in the 15mm greater than unfavorably become uncomfortable too thick to reverse. 吸収体13の隆起部13a Ridges 13a of the absorber 13
の形成されていない部分の2.5g/cm 2加重下における厚みT 2は1〜10mmであることが好ましく、2 Preferably the thickness T 2 are a 1~10mm in 2.5 g / cm 2 under a force is not formed part of, 2
〜7mmであることがより好ましい。 And more preferably from ~7mm. 1mm未満では剛性が小さ過ぎて側縁部がヨレ易くなり、生理用ナプキン1の装着ときにおける断面形状を好ましいアーチ形態を形成、維持させることができ難く、10mm超では剛性が高くなりすぎたり生理用ナプキン1の厚みが厚くなりすぎたりして、装着時における違和感が大きくなる。 Easily side edges twisting rigidity is too small it is less than 1 mm, forming the preferred arches form the cross-sectional shape at the time mounting of the sanitary napkin 1, hardly can be maintained, physiological or too high rigidity at 10mm than to become too thick thickness of the use napkin 1, discomfort is increased at the time of mounting. 隆起部13aの2.5g/cm 2加重下における隆起高さT 3は装着者の体液漏出部に良好にフィットされ優れた漏れ防止性を得るには、2〜10mmであることが好ましく、2〜7mmであることがより好ましい。 The protrusion height T 3 of 2.5 g / cm 2 weight of a ridge section 13a get leakproof excellent is well fitted to the body fluid leak portions of the wearer, it is preferably 2 to 10 mm, 2 and more preferably from ~7mm.

【0016】上記吸収体13を構成する材料としては、 [0016] As the material constituting the absorber 13,
フラッフパルプ、吸収紙、高吸収性ポリマー等の、従来より吸収体を構成する材料として公知のものを特に制限なく用いることができるが、上記吸収体13の上記隆起部13aの上記溝17,17の設けられていない部分における非肌当接面側への幅方向の曲げ剛性(長さ方向断面は直線状に保持されるような曲げ剛性)は、1〜10 Fluff pulp, absorbent paper, such as superabsorbent polymers, can be used without particular limitation known as the material constituting the absorber conventionally the grooves 17, 17 of the raised portion 13a of the absorber 13 (flexural rigidity, such as longitudinal section is held in a straight line) width of the bending rigidity of the non-skin contact surface side at a portion where not provided is 10
gf・cm/3cmであるものが好ましい。 And it is preferable gf · cm / 3cm. 該幅方向の曲げ剛性が1gf・cm/3cm未満では、隆起部の吸収体が柔らかすぎヨレてしまい10gf/cm/3cm In the width direction of the flexural rigidity is less than 1gf · cm / 3cm, absorber ridges would be too soft twist 10 gf / cm / 3 cm
を越えると逆に剛性が上がりすぎ違和感となってしまう。 Rigidity in the reverse becomes the discomfort too high when it exceeds. 尚、この曲げ剛性は、長手方向(生理用ナプキン1 Note that the flexural rigidity in the longitudinal direction (the sanitary napkin 1
の長手方向)が30mm、幅方向(生理用ナプキン1の幅方向)が70mmの試料(隆起部13aと同様の厚さを有し溝17,17等を備えていない吸収体)を、カトーテック製純曲げ試験機にて1cm間隔のチャックに保持させ、試料を垂直にした状態で、曲率K=−2.5〜 Longitudinal direction) 30 mm, a width direction (the width direction of the sanitary napkin 1) is not provided with such grooves 17 and 17 have a sample (ridges 13a and similar thickness of 70mm absorber), Kato Tech of Ltd. is held by the chuck of a 1cm gap in pure bending tester, when the specimen was vertically, the curvature K = -2.5 to
+2.5(cm -1 )の範囲にて変形速度0.50(cm +2.5 (cm -1) deformation rate 0.50 in the range of (cm
-1 )/秒の等速度曲率の純曲げを行って曲げモーメントMを測定し、K=0.5〜1.5における試料の長さ単位当たりの曲げモーメント(M)−曲率(K)曲線の傾斜である単位面積当たりの曲げ剛性(B)を求めたものである。 -1) / sec pure bending of constant velocity curvature measured performed by the bending moment M a, K = per length unit of the sample in the 0.5-1.5 bending moment (M) - the curvature (K) curve those obtained bending stiffness (B) per unit area is inclined.

【0017】一対の上記溝17,17は、図1に示すように、平面視生理用ナプキン1の幅方向内側へ向けて凸の円弧状に左右対称に形成されており、その全長が、上記隆起部13aの中央部における側縁の一定距離分内側に対応する位置に配設されている。 The pair of the grooves 17 and 17, as shown in FIG. 1, is formed in an arc shape symmetrical convex toward the inner side in the width direction in plan view a sanitary napkin 1, its entire length, the They are disposed at positions corresponding to the predetermined distance component inner side edge in the central portion of the raised portion 13a. これらの溝17,1 These grooves 17, 1
7の生理用ナプキン1の幅方向における最内側部同士間の距離W 3は、5〜30mmとなっている。 Distance W 3 between the innermost portions in the width direction of the sanitary napkin 1 of 7 has a 5 to 30 mm. また、この溝17,17の設けられている部分における上記吸収体13の隆起部13aの非肌当接面側への幅方向の曲げ剛性は0.2〜 2gf・cmとなっている。 The width direction of the bending rigidity of the non-skin contact surface side of the raised portion 13a of the absorber 13 in the portion provided with the groove 17, 17 has a 0.2 to 2 gf · cm. 即ち、上記隆起部13aにおける、可撓軸として機能する上記溝7 That is, the groove 7 in the ridge 13a, which functions as a flexible shaft
の設けられていない部分の曲げ剛性が、該溝17の設けられている部分における曲げ剛性に対し、1.5倍以上であることが好ましく、2〜10倍であることがより好ましい。 Flexural rigidity of the portion not provided is, with respect to the flexural rigidity at the portion provided with the groove 17, preferably at least 1.5 times, and more preferably 2 to 10 times. この曲げ剛性の比が、1.5未満においては、 The ratio of the bending stiffness, in less than 1.5,
可撓軸部分における積極的な屈曲がなくなるため、装着時に排泄部にフィットする望ましい装着形態をとり難くなるためである。 Since the positive bending of the flexible shaft portion is eliminated, because the difficult take the desired mounting configuration that fits excretory part during wearing. 尚、可撓軸として機能する上記溝7の設けられた部分における曲げ剛性は、長手方向(生理用ナプキン1の長手方向)が30mm、幅方向(生理用ナプキン1の幅方向)が70mmの隆起部13aと同様の厚さを有する吸収体の非肌当接面側一面に溝17,17 Incidentally, flexural rigidity at the groove 7 parts provided with the functioning as a flexible shaft, the longitudinal (lengthwise direction of the sanitary napkin 1) is 30 mm, (the width direction of the sanitary napkin 1) width direction 70mm uplift grooves 17 and 17 in the non-skin contact surface side one surface of the absorber with the parts 13a and similar thickness
と同様の溝加工を施したものを試料として用いた場合の、試料の長さ単位当たりの曲げモーメント(M)−曲率(K)曲線の傾斜である単位面積当たりの曲げ剛性(B)を求めたものである。 Calculated flexural rigidity (B) per unit area is the slope of the curvature (K) curve -, the bending moment per unit length of the sample (M) in the case of using as a sample the ones having been worked to have grooves similar to those were.

【0018】更に、上記溝17,17の曲率半径は30 Furthermore, the radius of curvature of the grooves 17, 17 30
〜300mmであることが好ましいが、隆起部分と同様直線であっても良い。 Is preferably ~300mm but may be similar line and the raised portion. また、上記溝17,17の深さD The depth D of the groove 17, 17
1 (図3参照)は、0.5〜10mmであり、隆起部の厚みT 1に対する溝の深さD 1の比(D 1 /T 1 )が、 1 (see FIG. 3) is 0.5 to 10 mm, the ratio of the groove depth D 1 to the thickness T 1 of the ridges (D 1 / T 1) is,
0.05〜0.7であることが好ましく、深さD 1が1 Is preferably 0.05 to 0.7, the depth D 1 is 1
〜5mmであり、上記比(D 1 /T 1 )が0.1〜0. A to 5 mm, the ratio (D 1 / T 1) is from 0.1 to 0.
5であることがより好ましい。 And more preferably 5. 溝17,17の深さD 1 The depth of the grooves 17, 17 of D 1
が0.5mm未満,比(D 1 /T 1 )が0.05未満であると、溝部分での可撓性が得にくく、好ましいフィット性を得難くなるので好ましくなく、逆に深さD 1が1 But less than 0.5 mm, the ratio (D 1 / T 1) is less than 0.05, difficult to obtain flexibility in the groove portion, it is not preferable because hardly obtained becomes a preferred fit, the depth D in the opposite 1 1
0mmを越え、比(D 1 /T 1 )が0.7を越えると、 Beyond the 0 mm, the ratio (D 1 / T 1) If exceeds 0.7,
溝部分が高密度に圧縮され、隆起部分全体の厚みが低下してしまい好ましくない。 Groove portions is compressed at a high density, the thickness of the entire raised portion is unfavorably lowered.

【0019】更に、本実施形態の生理用ナプキン1の吸収体13は、図1及び図4に示すように、後方部の非肌当接面側に、幅方向中央において生理用ナプキン1の長手方向に延びる直線状の後方溝18を備えており、この後方溝18が生理用ナプキン1の装着時に吸収部13の後方部の可撓軸として機能して生理用ナプキン1の後方部の幅方向中央が逆V字形に容易に変形し装着者の臀部に良好にフィットするようになっている。 Furthermore, the absorbent body 13 of the sanitary napkin 1 of the present embodiment, as shown in FIGS. 1 and 4, the non-skin contact surface side of the rear portion, the longitudinal of the sanitary napkin 1 in the width direction center includes a straight rear groove 18 extending in the direction, the width direction of the rear portion of the sanitary napkin 1 the rear groove 18 functions as a flexible shaft of the rear portion of the absorbent portion 13 when mounting the sanitary napkin 1 center so that the better fit to the buttocks and easily deformed wearer an inverted V-shape.

【0020】この後方溝18の設けられている部分における上記吸収体13の非肌当接面側への幅方向の曲げ剛性は0.2〜2gf・cmとなっている。 The non-skin widthwise bending rigidity of the contact surface side of the absorbent body 13 in the portion provided with the rear groove 18 has a 0.2~2gf · cm. 尚、この曲げ剛性は、長手方向(生理用ナプキン1の長手方向)が3 Note that the flexural rigidity in the longitudinal direction (the longitudinal direction of the sanitary napkin 1) is 3
0mm、幅方向(生理用ナプキン1の幅方向)が70m 0 mm, (the width direction of the sanitary napkin 1) width direction 70m
mの隆起部13aと同様の厚さを有する吸収体の非肌当接面側一面に後方溝18と同様の溝加工を施したものを試料として用いた場合の、試料の長さ単位当たりの曲げモーメント(M)−曲率(K)曲線の傾斜である単位面積当たりの曲げ剛性(B)を求めたものである。 In the case of using those subjected to the same grooving the rear groove 18 as a sample to a non-skin contact surface side one surface of the absorber having a raised portion 13a and the same thickness of m, the sample length per unit bending moment (M) - in which to determine the bending rigidity per unit area is the slope of the curvature (K) curve (B). また、 Also,
上記後方溝18の深さD、及び該深さDの上記隆起部T The ridges T depth D, and the deep D of the rear groove 18
1の厚みに対する比(D/T 1 )の好ましい範囲は、上記溝17,17におけるのと同様であり、溝18の深さDが0.5mm未満,比(D/T 1 )が0.05未満であると、溝部分での可撓性が得にくく、好ましいフィット性を得難くなるので好ましくなく、逆に深さDが10 A preferred range of the ratio 1 in the thickness (D / T 1) is the same as in the above-mentioned grooves 17 and 17, less than the depth D of the groove 18 is 0.5 mm, the ratio (D / T 1) is zero. If it is less than 05, difficult to obtain flexibility in the groove portion, it is not preferable because is difficult to obtain a desirable fit, the depth D to the reverse 10
mmを越え、比(D/T 1 )が0.7を越えると、溝部分が高密度に圧縮され、隆起部分全体の厚みが低下してしまい好ましくない。 Beyond the mm, the ratio (D / T 1) exceeds 0.7, the groove portions densely packed, the thickness of the entire raised portion is unfavorably lowered.

【0021】上記吸収体13の非肌当接面側には、上記第2の裏面シート12bが平面状に配され、更に該第2 [0021] non-skin facing side of the absorbent body 13, the second backsheet 12b is arranged in a plane, further second
の裏面シート12bの非肌当接面側に上記第1の裏面シート12aが平面状に配されている。 The first backsheet 12a to the non-skin contact surface side of the backsheet 12b are arranged on the planar. そして、両裏面シート12a,12bには、上記吸収体13の上記溝1 Then, both the backsheet 12a, the 12b, the groove 1 of the absorbent body 13
7,17及び後方溝18に沿う溝加工が施されていない。 Grooving along the 7, 17 and the rear groove 18 is not subjected.

【0022】また、本実施形態の生理用ナプキン1のナプキン本体10は、肌当接面側から表面シート11と吸収体13とをともにエンボス加工することにより左右対称に形成された1対の表溝19,19を備えている。 Further, the napkin main body 10 of the sanitary napkin 1 of this embodiment, a pair of tables which are formed symmetrically by both embossing the topsheet 11 and the absorbent body 13 from the skin contact surface side It is provided with a groove 19, 19. この表溝19,19は、吸収体13の肌当接面側の面に、 The Omotemizo 19 and 19, the surface of the skin contact surface side of the absorbent body 13,
上記隆起部13aの側縁のすぐ外側に沿い、平面視生理用ナプキン1の幅方向内側へ向けて凸型の円弧状に形成されており、上記吸収体13がこの表溝19,19を可撓軸として容易に変形し易くなり、装着時に、隆起部1 Along just outside of the side edges of the ridges 13a, is formed in a convex arc shape toward the inner side in the width direction in plan view a sanitary napkin 1, the absorbent body 13 is allowed this Omotemizo 19 liable to readily deform as Shiwajiku, when worn, ridges 1
3aを装着者側に凸の断面アーチ形状に変形させて該表溝19,19の幅方向外側はヨレることなく略水平方向に配置させ、且つ、隆起部13aの外側へ移行した体液を堰き止め後方へ移行させ、生理用ナプキン1の側縁部からの漏れを良好に防止するようになっている。 Widthwise outer 3a and by deforming into a convex cross-sectional arcuate shape to the wearer side said surface grooves 19 and 19 is disposed in a substantially horizontal direction without Yoreru and, dam was shifted to the outside of the raised portion 13a body fluids It is shifted to stop rearward, so as to better prevent leakage from the side edges of the sanitary napkin 1.

【0023】上記表溝19,19は、その深さD 2 (図3参照)が0.5〜9mmであり、溝の形成されていない部分の厚みT 2に対する比D 2 /T 2が0.3〜0. [0023] Table grooves 19 and 19, the a depth D 2 (see FIG. 3) is 0.5~9Mm, the ratio D 2 / T 2 to the thickness T 2 of the portion not formed with the grooves 0 .3~0.
9であることが好ましく、より好ましくはD 2が1〜6 Is preferably 9, more preferably D 2 is 1 to 6
mmであり、D 2 /T 2が0.5〜0.9である。 a mm, D 2 / T 2 is 0.5 to 0.9. 表溝19,19の深さが0.5mm未満では、溝部分での可撓性が得にくく、好ましいフィット性が得られなかったり、表面を流れる体液を堰き止める効果が得難く好ましくなく、9mmを超えると装着者に違和感を与え好ましくない。 Is less than the depth of the table grooves 19, 19 0.5 mm, difficult to obtain flexibility in the groove portion, it may not be obtained preferably fit is not preferable hard to obtain the effect of blocking body fluid flowing over the surface, 9 mm more than an unfavorable giving a sense of discomfort to the wearer.

【0024】以下、溝17,17、後方溝18、及び表溝19,19の好ましい溝構造について記載する。 [0024] Hereinafter, the grooves 17 and 17, describes preferred groove structure of the rear groove 18, and Omotemizo 19. 尚、 still,
ここでは溝17,17の好ましい構造について詳述するが、後方溝18、及び表溝19,19についても特に記載のない限り同様である。 Here it will be described in detail preferred structure of the grooves 17 and 17, the same unless otherwise noted also the rear groove 18, and Omotemizo 19. 上記溝17,17は、図6及び図7に示すように、菱形形状の小溝17aを複数個非連続的に形成させる溝加工を非肌当接面側から所定形状に沿って施し、小溝17a及び小溝17a間を連続的に非肌当接面側の面よりも窪ませた2段階の深さに形成されている。 The grooves 17 and 17, as shown in FIGS. 6 and 7, subjected along the grooves to form a small groove 17a of the rhombic shape plurality discontinuously from non-skin contact surface side in a predetermined shape, the small groove 17a is formed to a depth of two stages is recessed than the surface of and the small groove 17a between the continuous non-skin contacting side. このように、小溝17a及び小溝17a間を連続的に肌当接面側の面よりも窪ませ2段階の深さに形成することにより、溝17,17の深さDを深く形成しつつ可撓性を高く保持し良好なフィット性を得ることが可能となる。 Thus, by forming the minor groove 17a and the small groove 17a between the continuous skin contacting side two stages recessed than the surface depth, variable while deeper the depth D of the grooves 17, 17 maintaining a high FLEXIBLE becomes possible to obtain a good fit. 上記小溝17aの大きさは、1〜100m The size of the small groove 17a is, 1 to 100 m
2とするのが好ましい。 preferably in the m 2. 1mm 2より小さいと圧縮面積が小さすぎて好ましい可撓性が得られず、逆に100 Preferred flexible can not be obtained 1 mm 2 smaller than the compression area is too small, 100 conversely
mm 2を超えても好ましい可撓性が得られなくなる。 preferred flexible even exceed mm 2 can not be obtained. また、各小溝17aのピッチは、0.5〜5mmとするのが好ましい。 The pitch of each small groove 17a is preferably in the 0.5 to 5 mm. 0.5mm未満であると、好ましい可撓性及び肌当たり性が得られず、5mmを超えると小溝17 If it is less than 0.5 mm, it can not be obtained preferably flexible and skin contact resistance, exceeding 5mm small groove 17
a間に窪まない部分が生じて幅方向のみならず、長手方向に変に屈曲し、長手方向のフィット性が低下する。 Not the width direction only occur portion not recessed between a, and strangely bent in the longitudinal direction, the longitudinal direction of the fitting is lowered. また表溝19においては漏れ防止効果が小さくなる。 The effect of preventing leakage is small in Tables groove 19.

【0025】尚、溝17,17、後方溝18、表溝1 [0025] In addition, the grooves 17 and 17, the rear groove 18, Table groove 1
9,19を、このように小溝17a及び小溝17a間を連続的に肌当接面側の面よりも窪ませ2段階の深さに形成することにより設けた場合、それらの深さは小溝17 If the 9 and 19, is provided by forming this way a small groove 17a and a small groove 17a between the continuous skin contacting side two stages recessed than the surface depth, their depth small groove 17
aにおける深さとする。 And depth in a.

【0026】本実施形態の生理用ナプキン1は、通常の生理用ナプキンと同様に中央部を股間に配置して粘着部16を下着Wに粘着させて装着する。 The sanitary napkin 1 of this embodiment, similarly to the conventional sanitary napkin by arranging the central portion to the crotch attached by adhesive to the adhesive portion 16 to the undergarment W. そしてこの様に装着された本実施形態の生理用ナプキン1は、図7に示すように、中央部に側方から幅方向の力が加えられ、溝1 The sanitary napkin 1 of the attached embodiment in this manner, as shown in FIG. 7, a force in the width direction from the side is applied to the central portion, the groove 1
7,17及び表溝19,19において屈曲して隆起部1 7 and 17 and is bent in Omotemizo 19 ridges 1
3間が肌当接面側に凸の断面アーチ状となって、装着者の股間に良好に当接される。 3 while becomes a convex cross-section arched in skin contact surface side, is well contact the crotch of the wearer. また、生理用ナプキン1の後方部は後方溝18において屈曲して装着者の臀部に沿って肌当接面側になだらかに隆起する。 Also, the rear portion of the sanitary napkin 1 is gently raised skin contact surface side along the buttocks of the wearer by bending in the rear groove 18. この装着時における生理用ナプキン1の形状は、溝17,17、後方溝18及び表溝19,19により誘導形成されているので、いかなる装着状態にもかかわらず良好に維持される。 The shape of the sanitary napkin 1 in the time of mounting, the grooves 17 and 17, since it is derived form the rear grooves 18 and Omotemizo 19, despite any mounting state is maintained well.

【0027】この様に、本実施形態の生理用ナプキン1 [0027] In this way, the sanitary napkin 1 of the present embodiment
によると、溝17,17によって隆起部13aが肌当接面側に良好に隆起して装着者に良好に沿った形状となるので、良好なフィット性が発揮され、漏れが防止される。 According to, the ridges 13a by the grooves 17, 17 is improved along shape the wearer satisfactorily raised skin contact surface side, good fit is exhibited, leakage is prevented. 本実施形態の生理用ナプキン1によると、後方溝1 According to the sanitary napkin 1 of the present embodiment, the rear groove 1
8によって、生理用ナプキン1の後方部が肌当接面側に屈曲して装着者の臀部に沿って肌当接面側になだらかに隆起し、良好なフィット性が発揮され、漏れが防止される。 By 8, the rear portion of the sanitary napkin 1 is bent in a skin contact surface side gently raised skin contact surface side along the buttocks of the wearer, good fit is exhibited, leakage is prevented that. 本実施形態の生理用ナプキン1によると、表溝1 According to the sanitary napkin 1 of the present embodiment, Table grooves 1
9,19によって吸収体13がこの表溝19,19を可撓軸として容易に変形し易くなり、装着時に、表溝1 Absorber 13 by 9 and 19 is likely to easily deform the Omotemizo 19 as flexible shaft, when worn, Table grooves 1
9,19の幅方向外側はヨレることなく略水平方向に配置されるので、良好なフィット性が発揮され、漏れが防止される。 Since the outside in the width direction of the 9, 19 are disposed in a substantially horizontal direction without Yoreru good fit is exhibited, leakage is prevented. また、隆起部13aの外側へ移行した体液を堰き止め後方へ移行させるので、生理用ナプキン1の側縁部からの漏れが良好に防止される。 Further, since the shifts rearward dammed migrated body fluid to the outside of the raised portion 13a, leakage from the side edges of the sanitary napkin 1 is satisfactorily prevented. 本実施形態の生理用ナプキン1によると、裏面シート12a,12bが、 According to the sanitary napkin 1 of this embodiment, the backsheet 12a, 12b is,
平面状に配され且つ吸収体13の上記溝17,17及び後方溝18に沿う溝加工が施されていないので、裏面シート12a,12bが容易には屈曲せず、ショーツにしっかりと固定することができ、また、装着操作時や装着中に粘着部16同士が接着してヨレてしまうこともない。 Since grooving along the groove 17 and the rear groove 18 of and arranged in a planar absorber 13 is not performed, the backsheet 12a, 12b is not easily bent, it is firmly fixed to shorts It can be, also, between the adhesive portion 16 and during wear when worn operation never become twisted by bonding. これにより、良好なフィット性が得られると共に、 Thus, with good fit is obtained,
漏れが良好に回避される。 Leakage can be well avoided. 本実施形態の生理用ナプキン1によると、吸収体13が1層であり、間に他の部材が入り込んでいない簡単な構造であり、不必要に多量の材料を用いることなく製造することができる。 According to the sanitary napkin 1 of the present embodiment, the absorbent body 13 is one layer, a simple structure that does not penetrate other member between, can be produced without using unnecessarily large amounts of material .

【0028】上記の本形態の生理用ナプキン1は、図8 The sanitary napkin 1 of the above-mentioned present embodiment, FIG. 8
(a)に示すように、厚さ7mmで坪量が300g/m (A), the basis weight thickness 7mm is 300 g / m
2の吸収体13の連続体13'にエンボスロール等により圧縮(必要により加熱圧縮)加工を施して隆起部13 The continuum 13 'of the second absorption body 13 is subjected to processing (heating compression necessary) compressed by embossing rolls or the like ridge 13
aと溝17,17及び後方溝18を形成し(この工程に対応する吸収体を図8(a')及び図8(a'')に示す)、この後、第2の裏面シート12bの連続帯12 Form a and grooves 17, 17 and the rear grooves 18 (shown in Figure 8 an absorber for this step (a ') and FIG. 8 (a' ')), thereafter, the second backsheet 12b continuous band 12
b'を非肌当接面側から被覆し、図8(b)に示すように、表面シート11の連続帯11'で肌当接面側を被覆するとともに該表面シート11の連続帯11'側から表溝19,19を形成し(この工程に対応する生理用ナプキンを図8(b')及び図8(b'')に示す)、第1 b 'was coated from a non-skin contact surface side, as shown in FIG. 8 (b), the continuous strip 11 of the topsheet 11' continuum 11 of top sheet 11 with covering the skin contact surface side with ' forming a table grooves 19, 19 from the side (showing the sanitary napkin corresponding to the process in FIG. 8 (b ') and FIG. 8 (b' ')), first
の裏面シート12aの連続体12a'で非肌当接面側を被覆し、周縁を固着するとともに所定形状に切断する等して容易に製造することができる。 It can be in continuous body 12a 'covering the non-skin facing side of the backsheet 12a, easily manufactured by, for example cutting into a predetermined shape while fixing the periphery.

【0029】尚、本発明の吸収性物品は、上述の形態には何ら制限されず、本発明の趣旨を逸脱しない範囲で種々変更が可能である。 [0029] Incidentally, the absorbent article of the present invention, any not limited to the above embodiment, various modifications are possible without departing from the gist of the present invention. 例えば、上記隆起部13aを矩形として溝17,17及び表溝19,19を直線状とすることもできるが、より股間にフィットさせ理想的な形態をとるためには、長手方向の中央部が幅方向中央側に湾曲した円弧状のものとすることが好ましい。 For example, although the ridges 13a and grooves 17, 17 and Omotemizo 19, 19 may be straight as a rectangle, in order to take an ideal form to fit more groin, the central portion in the longitudinal direction it is preferable to assume arcuate curved in the width direction center side. また、溝1 In addition, the groove 1
7,17、後方溝18及び表溝19,19は、いずれも上記実施形態のように前端から後端まで連続したものに限られるものではなく、長手方向の複数箇所において非連続に形成されたものとすることもできる。 7,17, rear grooves 18 and Omotemizo 19 are both not limited to those continuously to the rear end from the front end as in the above embodiment, formed discontinuously in the longitudinal direction of the plurality of locations It can also be a thing.

【0030】更に、溝17,17、後方溝18及び表溝19,19は、いずれも、上述のような小溝17aを連結したものではなく、連続して溝加工を施されたものとすることもできる。 Furthermore, the grooves 17 and 17, the rear groove 18 and Omotemizo 19 are both not linked small groove 17a as described above, it is assumed that has been subjected to groove processing are continuously It can also be. また、上述の実施形態のように長手方向において分割された非連続複数の小溝17aにより形成した場合に、小溝17aの形状等は特に限定されない。 Further, in the case of forming a discontinuous plurality of small grooves 17a which are divided in the longitudinal direction as in the above embodiment, the shape of the small groove 17a is not particularly limited. 吸収体13は、上述のように均一の厚みの吸収体にエンボス加工を施して隆起部13aを形成したものの他、図9に示すように均一の厚さの吸収体13b'の一部に他の吸収体13a'を重ねることにより隆起部を形成したものとしたり、はじめから、隆起部13aを有する形状に成形したものとすることもできる。 Absorber 13, the other but to form a raised portion 13a embossed in the absorber of uniform thickness as described above, other part of the absorbent body 13b of uniform thickness' as shown in FIG. 9 or as that forming the ridges by overlaying an absorbent body 13a 'of, from the beginning, can be assumed to have formed into a shape having raised portions 13a. 尚、図9に示すように吸収体13b'に他の吸収体13a'を重ねて隆起部を形成した場合には、上記吸収性物品の長手方向に延びる溝17,17を、同図に示されるように隆起部に対応する上記吸収体13b'の非肌当接面側の面に形成しても良いが、図10に示すように、上記吸収体1 Incidentally, in the case of forming the ridge overlapping the 'other absorber 13a on' absorber 13b, as shown in FIG. 9, the grooves 17, 17 extending in the longitudinal direction of the absorbent article, shown in FIG. may be formed on the surface of the non-skin contact surface side of the absorber 13b 'corresponding to the ridges, as is, as shown in FIG. 10, the absorbent body 1
3a'の非肌当接面側の面に形成しても良い。 Non skin 3a 'may be formed on the surface of the contact surface side. この態様も、本発明の一実施形態である。 This embodiment is also an embodiment of the present invention. また、第2の裏面シート12bは溝17,17に沿って配置し、第1の裏面シート12aのみを平面状に配置しても同様の効果を得ることができる。 The second backsheet 12b are arranged along the grooves 17 and 17, only the first back sheet 12a can obtain the same effect even when located in a plane. 吸収性物品は、生理用ナプキンの外、失禁者用パッド、おりものシート等とすることもできる。 The absorbent article can outside of the sanitary napkin, incontinence pad, also be a woven sheet.

【0031】 [0031]

【発明の効果】以上説明した様に、本発明の吸収性物品は、多量の材料を必要とせず簡単な構成で、装着時にフィット性に優れた所定の形状となり、漏れ防止性に優れたものである。 As has been described above, the absorbent article of the present invention, with a simple structure without requiring a large amount of material, becomes a predetermined shape with excellent fit when worn, has excellent leakproof it is.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】本発明の吸収性物品の一の実施形態としての生理用ナプキンを肌当接面側から見た示す平面図である。 1 is a plan view showing a sanitary napkin viewed from the skin contact surface side as an embodiment of an absorbent article of the present invention.

【図2】図1の生理用ナプキンのI−I断面である。 2 is a I-I cross section of the sanitary napkin of Figure 1.

【図3】図1の生理用ナプキンの吸収体のI−I断面図である。 3 is a I-I sectional view of the absorbent body of the sanitary napkin of Figure 1.

【図4】図1の生理用ナプキンのJ−J断面図である。 4 is a J-J cross-sectional view of the sanitary napkin of Figure 1.

【図5】図1の生理用ナプキンの吸収体を非肌当接面側から見た拡大平面図である。 5 is an enlarged plan view of an absorbent body of the sanitary napkin is viewed from the non-skin contact surface side of FIG.

【図6】図1の生理用ナプキンの吸収体のK−K断面図である。 6 is a K-K cross-sectional view of the absorbent body of the sanitary napkin of Figure 1.

【図7】図1の生理用ナプキンの装着状態を示すI−I [7] I-I showing the mounted state of the sanitary napkin of Figure 1
断面図である。 It is a cross-sectional view.

【図8】図1の生理用ナプキンの製造工程の一部を示す図であり、(a)は吸収体の製造工程を示し、(b)は表面シートの被覆工程を示す図である。 8 shows a part of a sanitary napkin of the manufacturing process of FIG. 1 is a diagram showing a (a) shows a manufacturing process of the absorber, (b) is a topsheet covering step.

【図9】本発明の吸収性物品の他の実施形態における吸収体を示す断面図であり、図3に相当する図である。 [Figure 9] is a sectional view showing an absorbent body of another embodiment of an absorbent article of the present invention and is a view corresponding to FIG.

【図10】本発明の吸収性物品の更に他の実施形態における吸収体を示す断面図であり、図3に相当する図である。 [Figure 10] is a sectional view showing an absorber in still another embodiment of an absorbent article of the present invention and is a view corresponding to FIG.

【符号の説明】 DESCRIPTION OF SYMBOLS

1 生理用ナプキン(吸収性物品) 10 ナプキン本体 11 表面シート 12 裏面シート 13 吸収体(吸収部) 13a 隆起部 14 熱溶着部 15 ホットメルト剤 16 粘着部 17 溝 18 後方溝 19 表溝 20 ウイング P 液透過層 I 液不透過層 A 吸収部 1 sanitary napkin (absorbent article) 10 napkin body 11 topsheet 12 backsheet 13 absorbent (absorbing part) 13a ridge 14 heat seal parts 15 hot-melt adhesive 16 adhesive portion 17 the groove 18 behind the groove 19 Table grooves 20 Wing P the liquid permeable layer I liquid impermeable layer A absorber

フロントページの続き (72)発明者 中西 稔 栃木県芳賀郡市貝町赤羽2606 花王株式会 社研究所内 Of the front page Continued (72) inventor Minoru Nakanishi Tochigi Prefecture Haga-gun, Ichikai Akabane 2606 Kao stock company within the Institute

Claims (4)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 肌当接面側に液透過層と、非肌当接面側に液不透過層と、該液透過層及び該液不透過層の間に介在された吸収部とを備え、実質的に縦長に形成されてなる吸収性物品において、 上記吸収部の中央部に、肌当接面側へ隆起した上記吸収性物品の長手方向に延びる隆起部を備え、該隆起部に対応する上記吸収部の非肌当接面側には、上記吸収性物品の長手方向に延びる溝を備えており、 上記液不透過層は液不透過性の裏面シートからなり、該裏面シートは、平面状に配され、且つ上記吸収部の上記溝に沿う溝加工が施されていないことを特徴とする吸収性物品。 With a 1. A skin contact surface side to the liquid permeable layer, a liquid impermeable layer on the non-skin contact surface side, and an absorbent portion which is interposed between the liquid permeable layer and said liquid impermeable layer in an absorbent article comprising a substantially elongated form, in the central portion of the absorbent portion includes a raised portion extending in the longitudinal direction of the skin raised above the absorbent article to the contact surface side, corresponding to the raised portion the non-skin facing side of the absorbent portion which has a groove extending in the longitudinal direction of the absorbent article, the liquid impermeable layer is made of liquid-impermeable back sheet, the back sheet is absorbent articles are arranged in a planar shape, and wherein the grooves along the groove of the absorber is not performed.
  2. 【請求項2】 上記吸収部の上記中央部の2.5g/c Wherein the central portion of the absorbent portion 2.5 g / c
    2加重下における厚みが3〜15mmであり、且つその隆起高さが2〜10mmであることを特徴とする請求項1に記載の吸収性物品。 thickness at m 2 weight under a is 3 to 15 mm, and the absorbent article according to claim 1 in which the raised height is characterized in that it is a 2 to 10 mm.
  3. 【請求項3】 上記吸収部の上記隆起部の上記溝の設けられていない部分における非肌当接面側への幅方向の曲げ剛性が1〜10gf・cmであり、上記吸収部の上記隆起部の上記溝の設けられている部分における非肌当接面側への幅方向の曲げ剛性が0.2〜2gf・cmであり、上記隆起部の上記溝の設けられていない部分の上記溝の設けられている部分に対する幅方向の曲げ剛性の比が1.5以上であることを特徴とする請求項1又は請求項2に記載の吸収性物品。 Wherein the width direction of the bending rigidity of the non-skin facing side of the portion not provided with the above grooves of the ridges of the absorbent portion is 1~10gf · cm, the uplift of the absorbent portion the width direction of the bending rigidity of the non-skin contact surface side at a portion provided with the groove parts is 0.2~2gf · cm, the grooves of the portion not provided with the above grooves of the ridges the absorbent article according to claim 1 or claim 2 ratio of flexural rigidity in the width direction with respect to the portion that is provided is characterized in that 1.5 or more of.
  4. 【請求項4】 上記吸収部に上記溝が複数設けられていることを特徴とする請求項1乃至3のうちのいずれかに記載の吸収性物品。 4. The absorbent article according to any one of claims 1 to 3, characterized in that the groove in the absorber is provided with a plurality.
JP13808997A 1997-05-28 1997-05-28 Absorbent articles Expired - Fee Related JP3850102B2 (en)

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