JP7488722B2 - Absorbent articles - Google Patents
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- JP7488722B2 JP7488722B2 JP2020140205A JP2020140205A JP7488722B2 JP 7488722 B2 JP7488722 B2 JP 7488722B2 JP 2020140205 A JP2020140205 A JP 2020140205A JP 2020140205 A JP2020140205 A JP 2020140205A JP 7488722 B2 JP7488722 B2 JP 7488722B2
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- nonwoven fabric
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- 230000002745 absorbent Effects 0.000 title claims description 164
- 239000002250 absorbent Substances 0.000 title claims description 164
- 239000004745 nonwoven fabric Substances 0.000 claims description 92
- 239000000835 fiber Substances 0.000 claims description 19
- 229920000642 polymer Polymers 0.000 claims description 13
- 239000005871 repellent Substances 0.000 claims description 9
- 210000001124 body fluid Anatomy 0.000 description 39
- 229920000247 superabsorbent polymer Polymers 0.000 description 29
- 239000010839 body fluid Substances 0.000 description 25
- 239000004831 Hot glue Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 12
- 238000010521 absorption reaction Methods 0.000 description 10
- 239000002131 composite material Substances 0.000 description 9
- 230000000630 rising effect Effects 0.000 description 9
- 210000002700 urine Anatomy 0.000 description 9
- -1 polyethylene Polymers 0.000 description 8
- 206010012735 Diarrhoea Diseases 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 239000004698 Polyethylene Substances 0.000 description 6
- 229920000573 polyethylene Polymers 0.000 description 6
- 239000000758 substrate Substances 0.000 description 6
- 229920001577 copolymer Polymers 0.000 description 5
- 239000004744 fabric Substances 0.000 description 5
- 239000004750 melt-blown nonwoven Substances 0.000 description 5
- 230000035699 permeability Effects 0.000 description 5
- 230000004888 barrier function Effects 0.000 description 4
- 238000004049 embossing Methods 0.000 description 4
- 239000006260 foam Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 229920000058 polyacrylate Polymers 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
- 102100025539 Histone deacetylase complex subunit SAP18 Human genes 0.000 description 2
- 101000693664 Homo sapiens Histone deacetylase complex subunit SAP18 Proteins 0.000 description 2
- 206010021639 Incontinence Diseases 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 229920001131 Pulp (paper) Polymers 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000037237 body shape Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- RPOCFUQMSVZQLH-UHFFFAOYSA-N furan-2,5-dione;2-methylprop-1-ene Chemical compound CC(C)=C.O=C1OC(=O)C=C1 RPOCFUQMSVZQLH-UHFFFAOYSA-N 0.000 description 2
- 229920000578 graft copolymer Polymers 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 description 2
- 229920003051 synthetic elastomer Polymers 0.000 description 2
- 239000005061 synthetic rubber Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 239000004909 Moisturizer Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 210000001015 abdomen Anatomy 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 239000003242 anti bacterial agent Substances 0.000 description 1
- 230000003110 anti-inflammatory effect Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- FACXGONDLDSNOE-UHFFFAOYSA-N buta-1,3-diene;styrene Chemical compound C=CC=C.C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 FACXGONDLDSNOE-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000029142 excretion Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000002648 laminated material Substances 0.000 description 1
- 239000006210 lotion Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000001333 moisturizer Effects 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920005594 polymer fiber Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 description 1
- 239000004583 superabsorbent polymers (SAPs) Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
Landscapes
- Absorbent Articles And Supports Therefor (AREA)
Description
本発明は、吸収性物品に関する。 The present invention relates to an absorbent article.
従来の吸収性物品では、尿、便等の体液の横漏れを防止するために、立体ギャザーを利用した技術が提案されている。特に、外部への漏れ防止に関しては、以下の様々な技術が開示されている。 In conventional absorbent articles, technology has been proposed that uses three-dimensional gathers to prevent side leakage of bodily fluids such as urine and feces. In particular, the following various technologies have been disclosed for preventing leakage to the outside:
特許文献１には、使用状態で自由起立するウエスト用のバリヤーカフスを製品長手方向端部の使用面側に有し、バリヤーカフスはバリヤーシートを二重にして構成され、バリヤーカフスの起立遠位縁近傍及び起立領域内の起立近位縁近傍に、弾性伸縮部材をそれぞれ配設した吸収性物品が開示されている。この構造によれば、吸収性物品の肌側面に補助パッドを重ねた場合でも、ウエスト部での漏れが防止されると記載されている。 Patent Document 1 discloses an absorbent article that has barrier cuffs for the waist that freely stand up when in use on the use side of the longitudinal end of the product, the barrier cuffs being constructed by doubling up the barrier sheet, and that has elastic stretch members disposed near the standing distal edge of the barrier cuffs and near the standing proximal edge within the standing region. It is stated that this structure prevents leakage from the waist area even when an auxiliary pad is placed on the skin side of the absorbent article.
特許文献２には、吸収体とギャザーシートと不透液性フィルム材と表面シートとによって囲まれ、軟便等の体液を一旦貯留可能な断面視略三角形状の空間部を備え、排泄された体液を該空間部に一旦貯留して吸収体に吸収させるように構成した吸収性物品が開示されている。この構成によれば、体液、特に軟便漏れが低減すると記載されている。 Patent Document 2 discloses an absorbent article that is surrounded by an absorbent body, a gathered sheet, a liquid-impermeable film material, and a top sheet, and has a space that is roughly triangular in cross section and can temporarily store body fluids such as loose stool, and is configured so that excreted body fluids are temporarily stored in the space and then absorbed by the absorbent body. It is described that this configuration reduces leakage of body fluids, especially loose stool.
特許文献３には、吸収体の長手方向両側縁に沿って設けられた、液不透過性のシートからなる一対の第１立体ギャザーと、その幅方向外側に設けられた一対の第２立体ギャザーと、を備え、第１立体ギャザーのトップシート表面から立ち上がる起立点（以下単に「起立点」ともいう）と、第２立体ギャザーの起立点との間に、液透過性のトップシートを幅方向に露出させた吸収性物品が開示されている。この構造によれば、内側の第１立体ギャザーを超えて外側の第２立体ギャザーで堰き止められた体液を、トップシートの露出面から内部の吸収体に吸収させることができ、漏れが防止されるとともに、吸収体への体液捕集性が向上すると記載されている。 Patent Document 3 discloses an absorbent article that includes a pair of first three-dimensional gathers made of a liquid-impermeable sheet that are provided along both longitudinal edges of the absorbent body, and a pair of second three-dimensional gathers that are provided on the widthwise outer sides of the first three-dimensional gathers, and in which a liquid-permeable top sheet is exposed in the width direction between the rising points of the first three-dimensional gathers that rise from the surface of the top sheet (hereinafter simply referred to as "rising points") and the rising points of the second three-dimensional gathers. It is described that this structure allows bodily fluids that pass over the inner first three-dimensional gathers and are blocked by the outer second three-dimensional gathers to be absorbed into the internal absorbent body from the exposed surface of the top sheet, preventing leakage and improving the bodily fluid collection ability of the absorbent body.
従来の吸収性物品では、大量の尿や軟便が一度に排出された場合には、確実に漏れを防止することは難しいという課題が存在する。
本発明の目的は、大量に排出された尿や軟便を容易に吸収し、漏れを防止できる吸収性物品を提供することである。
Conventional absorbent articles have the problem that it is difficult to reliably prevent leakage when a large amount of urine or loose stool is excreted at once.
An object of the present invention is to provide an absorbent article that can easily absorb large amounts of excreted urine or loose stool and prevent leakage.
本発明者は、上記課題を解決するために鋭意研究を重ねた結果、第１立体ギャザーと、その幅方向外側に配設された第２立体ギャザーとを有する吸収性物品において、第１立体ギャザーと第２立体ギャザーとの間の所定位置に、体液を吸収可能な特定の高吸収性シートを配設することで、目的に叶う吸収性物品が得られることを見出し、本発明を完成するに至った。すなわち、本発明は、下記の吸収性物品に係る。 As a result of extensive research into solving the above problems, the inventors discovered that an absorbent article that meets the objectives can be obtained by disposing a specific highly absorbent sheet capable of absorbing bodily fluids in a predetermined position between the first and second three-dimensional gathers in an absorbent article having a first three-dimensional gather and a second three-dimensional gather disposed on the widthwise outer side thereof, and thus completed the present invention. In other words, the present invention relates to the following absorbent article.
（１）液透過性のトップシートと、液不透過性のバックシートと、前記トップシートと前記バックシートとの間に配置された吸収体と、を備える吸収性物品であって、
前記トップシートの肌側面の幅方向両端付近に長手方向に沿って固定され、起立領域としての遊離端とその近傍領域を有し、撥水性及び／又は防水性のシートを含む一対の第１立体ギャザーと、
前記一対の第１立体ギャザーの幅方向外側に長手方向に沿って固定された、撥水性及び／又は防水性のシートを含む一対の第２立体ギャザーと、
前記第１立体ギャザーの幅方向外側から前記第２立体ギャザーの幅方向内側までの長手方向に延びる領域で、幅方向の一端である外側端が前記第２立体ギャザーの幅方向内側面に固定されて長手方向に延びる一対の高吸収性シートと、を更に備え、
前記高吸収性シートは、前記第１立体ギャザー及び前記第２立体ギャザーに固定されない不織布と、前記不織布に対向配置され、少なくとも前記第２立体ギャザーの前記幅方向内側面に固定されるパルプ含有不織布と、これらの間に配置された高吸収性ポリマーの固着担持層と、を含み、
前記パルプ含有不織布は、スパンボンド不織布と、前記スパンボンド不織布の少なくとも一方の表面に一体化されたパルプ繊維層と、を含むことを特徴とする、吸収性物品。
（２）前記高吸収性シートは、
幅方向他端である内側端が、前記第１立体ギャザーの前記起立領域まで延在し、
幅方向途中部が、前記第１立体ギャザーの前記起立領域の幅方向外端から前記第２立体ギャザーの固定界面を跨ぐ幅領域に固定され、
幅方向一端である前記外側端が、前記第２立体ギャザーの幅方向内側面に固定されている、上記（１）の吸収性物品。
（３）前記高吸収性シートは、前記第１立体ギャザー及び前記第２立体ギャザーに固定されない前記不織布がエアスルー不織布である、上記（１）又は（２）の吸収性物品。
（４）前記高吸収性シートは、前記トップシートの長手方向の一の途中部から他の途中部までの長さ領域に固定され、その長手方向長さが、前記トップシートの長手方向長さの１０％以上９０％以下である、上記（１）～（３）のいずれかの吸収性物品。
（５）前記高吸収性シートは、前記トップシートの幅方向一端及び他端から、前記トップシートの幅方向長さの１０％以上３０％以下の幅領域に固定されている、上記（１）～（４）のいずれかの吸収性物品。
(1) An absorbent article comprising a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent body disposed between the top sheet and the back sheet,
a pair of first three-dimensional gathers fixed along a longitudinal direction near both ends in a width direction of the skin side of the top sheet, having free ends as standing regions and regions adjacent thereto, the first three-dimensional gathers including a water-repellent and/or waterproof sheet;
A pair of second three-dimensional gathers including a water-repellent and/or waterproof sheet fixed along a longitudinal direction on the widthwise outer sides of the pair of first three-dimensional gathers;
a pair of highly absorbent sheets extending in the longitudinal direction in a region extending from the outer side in the width direction of the first three-dimensional gather to the inner side in the width direction of the second three-dimensional gather, the pair of highly absorbent sheets being fixed at one end in the width direction to the inner side surface in the width direction of the second three-dimensional gather,
The highly absorbent sheet includes a nonwoven fabric that is not fixed to the first three-dimensional gathers and the second three-dimensional gathers, a pulp-containing nonwoven fabric that is disposed opposite the nonwoven fabric and is fixed to at least the widthwise inner surface of the second three-dimensional gathers, and a fixed support layer of a highly absorbent polymer that is disposed between them,
The pulp-containing nonwoven fabric comprises a spunbonded nonwoven fabric and a pulp fiber layer integrated on at least one surface of the spunbonded nonwoven fabric.
(2) The highly absorbent sheet is
The inner end, which is the other end in the width direction, extends to the standing region of the first three-dimensional gather,
The width direction intermediate portion is fixed to a width region spanning from the width direction outer end of the standing region of the first three-dimensional gather to the fixed interface of the second three-dimensional gather,
The absorbent article according to (1) above, wherein the outer end, which is one end in the width direction, is fixed to an inner side surface in the width direction of the second three-dimensional gather.
(3) The absorbent article according to (1) or (2) above, wherein the nonwoven fabric of the highly absorbent sheet that is not fixed to the first and second three-dimensional gathers is an air-through nonwoven fabric.
(4) An absorbent article according to any one of (1) to (3) above, wherein the highly absorbent sheet is fixed to a length region extending from one midpoint of the longitudinal direction of the top sheet to another midpoint of the longitudinal direction, and the longitudinal length of the highly absorbent sheet is 10% or more and 90% or less of the longitudinal length of the top sheet.
(5) Any of the absorbent articles according to (1) to (4) above, wherein the highly absorbent sheet is fixed in a width region that is 10% to 30% of the width direction length of the top sheet from one end and the other end of the width direction of the top sheet.
本発明によれば、大量に排出された尿や軟便を容易に吸収し、漏れを防止できる吸収性物品を提供することができる。 The present invention provides an absorbent article that can easily absorb large amounts of urine and loose stool and prevent leakage.
本明細書において、吸収性物品の着用とは、体液の吸収前後を問わず、吸収性物品を身体に装着した状態をいう。吸収性物品において、長手方向とは吸収性物品を身体に着用したときに着用者の股間部を介して身体の前後に亘る方向であり、幅方向とは長手方向に対して直交する方向であり、厚み方向とは各構成部材を積層する方向である。肌側面とは、吸収性物品を着用したときに、着用者の肌に当接する表面及び肌を臨む表面であり、非肌側面とは、着用者の衣服に接触する表面又は衣服を臨む表面である。体液とは、尿や血液、軟便中の水分等の体内から体外に排出された液体をいう。 In this specification, wearing an absorbent article refers to the state in which the absorbent article is attached to the body, regardless of whether bodily fluids have been absorbed or not. In an absorbent article, the longitudinal direction is the direction that spans the front and back of the body via the wearer's crotch when the absorbent article is worn on the body, the width direction is the direction perpendicular to the longitudinal direction, and the thickness direction is the direction in which each component is layered. The skin side is the surface that contacts the wearer's skin and faces the skin when the absorbent article is worn, and the non-skin side is the surface that contacts the wearer's clothing or faces the clothing. Body fluids refer to liquids discharged from the body to the outside, such as urine, blood, and water in loose stools.
＜吸収性物品＞
以下、図面を参照しつつ、第１実施形態に係る吸収性物品１及び第２実施形態に係る吸収性物品２について説明する。図１及び図２は吸収性物品１を示し、図３は体液吸収後の吸収性物品１を示し、図４は、体液吸収後の吸収性物品２を示す。図５及び図６は高吸収性シート２０を示す。これらの図面は吸収性物品１、２中の各構成部材の形状や寸法、大小関係等を規定するものではない。
<Absorbent Articles>
An absorbent article 1 according to a first embodiment and an absorbent article 2 according to a second embodiment will be described below with reference to the drawings. Figures 1 and 2 show the absorbent article 1, Figure 3 shows the absorbent article 1 after absorbing body fluids, and Figure 4 shows the absorbent article 2 after absorbing body fluids. Figures 5 and 6 show a super absorbent sheet 20. These drawings do not stipulate the shapes, dimensions, size relationships, etc. of the components in the absorbent articles 1 and 2.
本実施形態の吸収性物品１、２は、ベビー用又は成人用を問わず種々の吸収性物品として使用でき、例えば、軽失禁パッド、尿吸収パッド、生理用ナプキン、失禁用使い捨ておむつ、パンツ型紙おむつ、テープ止め紙おむつ等が挙げられる。アウターとしての各種紙おむつと、インナーとしての吸収性物品１、２とを組み合わせてもよい。吸収性物品１、２の、長手方向の寸法（最大長さ）、及び幅方向の寸法（最大幅）はいずれも特に限定されないが、例えば、１００ｍｍ以上８００ｍｍ以下の範囲、及び５０ｍｍ以上５００ｍｍ以下の範囲である。これらの寸法範囲を有する吸収性物品１、２から、種々の用途のものが容易に得られる。 The absorbent articles 1 and 2 of this embodiment can be used as various absorbent articles for babies or adults, such as light incontinence pads, urine absorption pads, sanitary napkins, disposable diapers for incontinence, pants-type paper diapers, tape-fastened paper diapers, etc. Various paper diapers may be combined as outerwear with the absorbent articles 1 and 2 as innerwear. The longitudinal dimensions (maximum length) and width dimensions (maximum width) of the absorbent articles 1 and 2 are not particularly limited, but are, for example, in the ranges of 100 mm to 800 mm and 50 mm to 500 mm. Absorbent articles 1 and 2 having these dimensional ranges can be easily obtained for various uses.
＜吸収性物品＞
吸収性物品１は、図１及び図２に示すように、着用者の肌側に位置する、液透過性のトップシート１０と、トップシート１０に対向して配置され、着用者の非肌側に位置する液不透過性のバックシート１２と、トップシート１０とバックシート１２との間に配置された吸収体１１と、幅方向途中部又は幅方向一端部がトップシート１０の肌側面に固定された一対の第１立体ギャザー１３と、第１立体ギャザー１３の幅方向外側に固定された一対の第２立体ギャザー１４と、少なくとも幅方向の一端が第２立体ギャザー１４の内側面１４ｘに固定された高吸収性シート２０と、を備える。吸収性物品１の用途やタイプに応じて、レッグギャザー、ウエストギャザー、サイドフラップ等を適宜設けることができる。
<Absorbent Articles>
1 and 2, the absorbent article 1 comprises a liquid-permeable top sheet 10 located on the wearer's skin side, a liquid-impermeable back sheet 12 arranged opposite the top sheet 10 and located on the non-skin side of the wearer, an absorbent body 11 arranged between the top sheet 10 and the back sheet 12, a pair of first three-dimensional gathers 13 whose widthwise intermediate portions or one widthwise end portion is fixed to the skin-side surface of the top sheet 10, a pair of second three-dimensional gathers 14 fixed to the widthwise outer sides of the first three-dimensional gathers 13, and a highly absorbent sheet 20 whose at least one widthwise end portion is fixed to the inner surface 14x of the second three-dimensional gathers 14. Leg gathers, waist gathers, side flaps, etc. can be provided as appropriate depending on the application and type of the absorbent article 1.
本実施形態によれば、少なくとも第２立体ギャザー１４、必要に応じて第１立体ギャザー１３の幅方向外側面１３ｘ及び第２立体ギャザー１４の第１立体ギャザー１３を臨む内側面１４ｘに、高吸収性シート２０のパルプ含有不織布１６（図３）側を固定することで、一度に多量の体液が排出され、第１立体ギャザー１３を越える横漏れが発生しても、高吸収性シート２０が体液を吸収して、第２立体ギャザー１４を起立させるので、体液のそれ以上の横漏れを防止することができる。また、高吸収性シート２０の、第１立体ギャザー１３の外側面１３ｘや第２立体ギャザー１４の内側面１４ｘへの固定面になるパルプ含有不織布１６は、体液を一時的に保持する機能を有することから、体液の漏出を抑制しつつ、高吸収性ポリマーの固着担持層（不図示）による体液吸収を促進することができる。このような横漏れ防止機構を設けることで、体液量が多くても、横漏れをほぼ確実に防止できる。 According to this embodiment, by fixing the pulp-containing nonwoven fabric 16 (FIG. 3) side of the highly absorbent sheet 20 to at least the second three-dimensional gathers 14, and if necessary, to the widthwise outer side surface 13x of the first three-dimensional gathers 13 and the inner side surface 14x of the second three-dimensional gathers 14 facing the first three-dimensional gathers 13, even if a large amount of body fluid is discharged at once and side leakage beyond the first three-dimensional gathers 13 occurs, the highly absorbent sheet 20 absorbs the body fluid and makes the second three-dimensional gathers 14 stand up, so that further side leakage of the body fluid can be prevented. In addition, the pulp-containing nonwoven fabric 16, which is the fixing surface of the highly absorbent sheet 20 to the outer side surface 13x of the first three-dimensional gathers 13 and the inner side surface 14x of the second three-dimensional gathers 14, has the function of temporarily retaining body fluid, and therefore can promote the absorption of body fluid by the fixed support layer (not shown) of the highly absorbent polymer while suppressing leakage of body fluid. By providing such a side leakage prevention mechanism, side leakage can be almost certainly prevented even if the amount of body fluid is large.
以下、各構成部材について、トップシート１０、吸収体１１、バックシート１２、第１立体ギャザー１３、第２立体ギャザー１４、及び高吸収性シート２０の順でさらに詳しく説明する。これらの構成部材は、シート状及び板状以外の立体形状を有していてもよい。 Below, each component will be described in more detail in the following order: top sheet 10, absorbent body 11, back sheet 12, first three-dimensional gathers 13, second three-dimensional gathers 14, and highly absorbent sheet 20. These components may have a three-dimensional shape other than a sheet or plate shape.
（トップシート）
トップシート１０は、例えば、体液を集約的に吸収体１１に供給する。トップシート１０の基材は、体液が吸収体１１に移動する液透過性を備えていればよく、例えば、サーマルボンド不織布等の不織布、サーマルボンド不織布／スパンボンド不織布積層体である複合不織布、開口ポリエチレンフィルム等の開口性フィルム、ポリエチレンフォーム、ウレタンフォーム等の発泡フィルム、これらの２種以上を積層した複合シート等が挙げられる。また、トップシート１０は、液透過性を向上させる観点から、表面にエンボス加工や穿孔加工を施すことができる。肌への刺激を低減させる観点から、トップシート１０に、ローション、酸化防止剤、抗炎症成分、ｐＨ調整剤、抗菌剤、保湿剤等の１種又は２種以上を含有させてもよい。強度及び加工性の観点から、トップシート１０の坪量は、例えば、１４ｇ／ｍ２以上４０ｇ／ｍ２以下の範囲である。トップシート１０の形状は、体液を吸収体１１に誘導する観点から、吸収体１１の全部又は一部を覆う形状であればよい。
(Top sheet)
The top sheet 10 supplies, for example, bodily fluids in a concentrated manner to the absorbent 11. The substrate of the top sheet 10 may have liquid permeability that allows bodily fluids to move to the absorbent 11, and examples of such substrates include nonwoven fabrics such as thermal bonded nonwoven fabrics, composite nonwoven fabrics that are thermal bonded nonwoven fabrics/spunbonded nonwoven fabric laminates, perforated films such as perforated polyethylene films, foamed films such as polyethylene foams and urethane foams, and composite sheets in which two or more of these are laminated. In addition, the top sheet 10 may be embossed or perforated on the surface in order to improve liquid permeability. In order to reduce irritation to the skin, the top sheet 10 may contain one or more of lotions, antioxidants, anti-inflammatory components, pH adjusters, antibacterial agents, moisturizers, and the like. In terms of strength and processability, the basis weight of the top sheet 10 is, for example, in the range of 14 g/m 2 to 40 g/m 2 . From the viewpoint of guiding bodily fluids to the absorbent body 11, the top sheet 10 may have a shape that covers all or part of the absorbent body 11.
（吸収体）
吸収体１１はトップシート１０とバックシート１２との間に挟まれ、トップシート１０を通して尿等の体液を吸収及び保持する。一実施形態の吸収体１１は、吸収性繊維と、高吸収性ポリマーと、を含有する。吸収性繊維は、一般に生理用ナプキンや紙おむつ、尿取りパッド等の吸収性物品に使用されるものを限定なく使用でき、例えば、フラッフパルプ、コットン、レーヨン、アセテート、ティシュ、吸収紙、親水性不織布等が挙げられる。これらの中でも、吸収性の観点から、フラッフパルプが好ましい。フラッフパルプとしては、木材パルプ、合成繊維、ポリマー繊維、非木材パルプ等の綿状の解繊物が挙げられる。吸収体１１の吸収性繊維の坪量は、吸収性能及び肌触りを損なわない観点から、例えば、５０ｇ／ｍ２以上８００ｇ／ｍ２以下の範囲である。
(Absorber)
The absorbent 11 is sandwiched between the top sheet 10 and the back sheet 12, and absorbs and retains body fluids such as urine through the top sheet 10. The absorbent 11 of one embodiment contains absorbent fibers and a highly absorbent polymer. The absorbent fibers can be any fibers commonly used in absorbent articles such as sanitary napkins, paper diapers, and urine pads, and examples thereof include fluff pulp, cotton, rayon, acetate, tissue, absorbent paper, and hydrophilic nonwoven fabric. Among these, fluff pulp is preferred from the viewpoint of absorbency. Examples of fluff pulp include cotton-like defibrated materials such as wood pulp, synthetic fibers, polymer fibers, and non-wood pulp. The basis weight of the absorbent fibers of the absorbent 11 is, for example, in the range of 50 g/m 2 to 800 g/m 2 from the viewpoint of not impairing the absorption performance and the feel.
吸収体１１に使用される高吸収性ポリマー（Ｓｕｐｅｒ Ａｂｓｏｒｂｅｎｔ Ｐｏｌｙｍｅｒ、以下「ＳＡＰ」ともいう）としては、体液を吸収及び保持し、かつ、逆流を防止できるものを特に限定なく使用でき、ポリアクリル酸塩、ポリアスパラギン酸塩、（デンプン－アクリル酸）グラフト共重合体、（アクリル酸－ビニルアルコール）共重合体、（イソブチレン－無水マレイン酸）共重合体及びそのケン化物等が挙げられる。これらの中でも、重量当たりの吸収量の観点から、ポリアクリル酸塩が好ましく、ポリアクリル酸ナトリウムがより好ましい。高吸収性ポリマーは１種を単独で又は２種以上を組み合わせて使用できる。吸収体１１のＳＡＰの坪量は、吸収性能及び肌触りを損なわない観点から、例えば１０ｇ／ｍ２以上５００ｇ／ｍ２以下の範囲であり、ＳＡＰ含有量は吸収体１１全量の例えば１５質量％以上５０質量％以下の範囲である。 The superabsorbent polymer (hereinafter also referred to as "SAP") used in the absorbent body 11 can be any polymer that can absorb and retain body fluids and prevent backflow, and can be used without any particular limitation. Examples of such polymers include polyacrylates, polyaspartates, (starch-acrylic acid) graft copolymers, (acrylic acid-vinyl alcohol) copolymers, (isobutylene-maleic anhydride) copolymers, and saponified products thereof. Among these, polyacrylates are preferred from the viewpoint of absorption per weight, and sodium polyacrylate is more preferred. The superabsorbent polymers can be used alone or in combination of two or more. The basis weight of the SAP in the absorbent body 11 is, for example, in the range of 10 g/m 2 to 500 g/m 2 from the viewpoint of not impairing the absorption performance and the feel on the skin, and the SAP content is, for example, in the range of 15% by mass to 50% by mass of the total amount of the absorbent body 11.
吸収体１１の形態としては、例えば、吸収性繊維中にＳＡＰ粒子を混合して形成した積層マット等が挙げられる。繊維形態のＳＡＰも使用できる。また、ＳＡＰ粒子の漏洩防止や吸収体１１の形状の安定化の観点から、吸収体１１をキャリアシートに包む形態が挙げられる。キャリアシートの基材としては親水性を有するものを使用でき、例えば、ティシュ、吸収紙、エアレイド不織布等の親水性不織布等が挙げられる。キャリアシートを複数備える場合は、キャリアシートの基材は同一でも異なっていてもよい。 The absorbent 11 may take the form of, for example, a laminated mat formed by mixing SAP particles in absorbent fibers. SAP in fibrous form may also be used. From the viewpoint of preventing leakage of SAP particles and stabilizing the shape of the absorbent 11, the absorbent 11 may be wrapped in a carrier sheet. The base material of the carrier sheet may be hydrophilic, for example, tissue, absorbent paper, hydrophilic nonwoven fabric such as airlaid nonwoven fabric, etc. When multiple carrier sheets are provided, the base materials of the carrier sheets may be the same or different.
吸収体１１は、２層以上の吸収体からなるものでもよく、例えば、上層吸収体と下層吸収体とを積層したものでもよい。この場合、上層吸収体と下層吸収体の長手方向及び幅方向の寸法は、上層吸収体の寸法が下層吸収体の寸法より大きくてもよく、上層吸収体の寸法が下層吸収体の寸法と同じでもよく、上層吸収体の寸法が下層吸収体の寸法より小さくてもよい。 The absorbent body 11 may be made of two or more absorbent layers, for example, a laminate of an upper absorbent body and a lower absorbent body. In this case, the longitudinal and width dimensions of the upper absorbent body and the lower absorbent body may be such that the upper absorbent body is larger than the lower absorbent body, the upper absorbent body may be the same as the lower absorbent body, or the upper absorbent body may be smaller than the lower absorbent body.
吸収体１１は、その長手方向の寸法（最大長さ）が、例えば、１００ｍｍ以上８００ｍｍ以下の範囲、１５０ｍｍ以上５００ｍｍ以下の範囲、又は２７０ｍｍ以上５００ｍｍ以下の範囲である。吸収体１１の幅方向の寸法（最大幅）は、例えば、５０ｍｍ以上５００ｍｍ以下の範囲、６０ｍｍ以上４００ｍｍ以下の範囲、又は７０ｍｍ以上１０５ｍｍ以下の範囲である。また、吸収体１１の平面視形状が砂時計型である場合は、長手方向寸法が１８０ｍｍ以上４８０ｍｍ以下の範囲、着用者の腹部及び背部にそれぞれ当接する腹側部及び背側部の幅方向寸法がともに６０ｍｍ以上１６０ｍｍ以下の範囲であり、着用者の股間部に当接する股部の幅方向寸法が５０ｍｍ以上１４０ｍｍ以下の範囲である。吸収体１１の全面又は一部にエンボス加工を施してもよい。吸収体１１の平面視形状としては、例えば、砂時計型、Ｉの字状、長方形、４角が丸まった角丸四角形、長円等が挙げられる。また、吸収体１１は、吸収基材として、吸収性繊維と、高吸収性ポリマー（以下「ＳＡＰ」ともいう）と、を含有する。 The absorbent 11 has a longitudinal dimension (maximum length) of, for example, 100 mm to 800 mm, 150 mm to 500 mm, or 270 mm to 500 mm. The widthwise dimension (maximum width) of the absorbent 11 is, for example, 50 mm to 500 mm, 60 mm to 400 mm, or 70 mm to 105 mm. When the planar shape of the absorbent 11 is an hourglass shape, the longitudinal dimension is 180 mm to 480 mm, the widthwise dimensions of the ventral and dorsal parts that contact the wearer's abdomen and back, respectively, are both 60 mm to 160 mm, and the widthwise dimension of the crotch part that contacts the wearer's crotch is 50 mm to 140 mm. The absorbent 11 may be embossed on the entire surface or a part thereof. Examples of the planar shape of the absorbent body 11 include an hourglass shape, an I-shape, a rectangle, a rounded rectangle, an oval, etc. The absorbent body 11 also contains absorbent fibers and a superabsorbent polymer (hereinafter also referred to as "SAP") as an absorbent base material.
（バックシート）
バックシート１２には、吸収体１１が保持する体液が漏れない液不透過性を有する基材を特に限定なく使用でき、例えば、不織布、樹脂フィルム、これらを積層体である複合シート等が挙げられる。不織布としては、例えば、スパンボンド不織布、メルトブロー不織布、スパンボンド不織布／メルトブロー不織布積層体、スパンボンド不織布／メルトブロー不織布／スパンボンド不織布積層体等の複合不織布、これらの２種以上の複合材料等が挙げられる。樹脂フィルムとしては、例えば、ポリエステル、ポリビニルアルコール、ポリエチレン、ポリプロピレン等のフィルム、ポリエチレンとポリプロピレンの複合フィルム等が挙げられる。また、着用時の蒸れを防止する観点から、透湿性を有するバックシート１２が好ましい。バックシート１２に透湿性を付与する方法としては、例えば、基材の樹脂フィルムにフィラーを配合する方法、バックシート１２に穿孔のためのエンボス加工を施す方法等が挙げられる。
(Back seat)
For the back sheet 12, a liquid-impermeable substrate that does not leak the body fluid held by the absorbent 11 can be used without any particular limitation, and examples thereof include nonwoven fabric, resin film, and composite sheets that are laminates of these. Examples of nonwoven fabric include composite nonwoven fabrics such as spunbond nonwoven fabric, meltblown nonwoven fabric, spunbond nonwoven fabric/meltblown nonwoven fabric laminate, spunbond nonwoven fabric/meltblown nonwoven fabric/spunbond nonwoven fabric laminate, and composite materials of two or more of these. Examples of resin films include films of polyester, polyvinyl alcohol, polyethylene, polypropylene, and the like, and composite films of polyethylene and polypropylene. In addition, from the viewpoint of preventing stuffiness during wearing, the back sheet 12 having moisture permeability is preferable. Examples of methods for imparting moisture permeability to the back sheet 12 include a method of blending a filler into the resin film of the substrate, and a method of embossing the back sheet 12 for perforation.
（第１立体ギャザー）
第１立体ギャザー１３は、例えば、吸収性物品１の着用者が排泄した体液の横漏れを防止するために、吸収性物品１の幅方向両端付近で吸収性物品１の長手方向に沿ってトップシート１０の肌側面に固定される。第１立体ギャザー１３は、弾性伸縮部材１３ａと、撥水性及び／又は防水性の第１シート部材１３ｂと、を含む。
(First three-dimensional gather)
The first three-dimensional gathers 13 are fixed to the skin side of the top sheet 10 near both ends in the width direction of the absorbent article 1 along the longitudinal direction of the absorbent article 1 in order to prevent, for example, lateral leakage of bodily fluids excreted by the wearer of the absorbent article 1. The first three-dimensional gathers 13 include an elastic stretchable member 13a and a water-repellent and/or waterproof first sheet member 13b.
弾性伸縮部材１３ａは、第１シート部材１３ｂの自由端（他端）付近に長手方向に沿って配設され、該自由端に起立性を付与し、第１シート部材１３ｂの自由端及びその近傍領域を着用者の体型に合わせて変形可能にする。第１シート部材１３ｂは、本実施形態では幅方向一端（固定端）がバックシート１２の肌側面の幅方向両端付近に固定され、幅方向途中部がトップシート１０の肌側面の幅方向両端付近に固定され、幅方向他端が起立性を有する自由端である。該自由端は、例えば体液が浸透したときに、弾性伸縮部材１３ａの伸縮度や配設本数、第１シート部材１３ｂの材質や坪量、厚み等に応じて、自由端から幅方向の所定長さが起立して起立領域を形成する。なお、起立領域は、複数回の有限な実験により、第１立体ギャザー１３の外側面１３ｘにおける起立点を決定し、該起立点から自由端までの領域として決定することができる。第１シート部材１３ｂの固定端（幅方向一端）の固定位置は、本実施形態に限定されず、例えば、バックシート１２の非肌側面、内部に吸収体１１を収納したトップシート１０とバックシート１２との各縁辺の全部又は一部接合体の肌側面又は非肌側面の幅方向両端付近、トップシート１０の肌側面の幅方向両端付近等が挙げられる。 The elastic stretch member 13a is arranged along the longitudinal direction near the free end (other end) of the first sheet member 13b, imparting uprightness to the free end, and allowing the free end of the first sheet member 13b and its neighboring area to be deformed to fit the wearer's body shape. In this embodiment, the first sheet member 13b has one widthwise end (fixed end) fixed near both widthwise ends of the skin side of the back sheet 12, a widthwise middle portion fixed near both widthwise ends of the skin side of the top sheet 10, and the other widthwise end being a free end having uprightness. When body fluid penetrates, for example, a predetermined length of the free end rises from the free end in the widthwise direction depending on the degree of stretch and number of the elastic stretch member 13a, the material, basis weight, thickness, etc. of the first sheet member 13b, to form a standing region. The standing region can be determined by determining the standing point on the outer surface 13x of the first three-dimensional gather 13 through multiple finite experiments, and determining the region from the standing point to the free end. The fixed position of the fixed end (one end in the width direction) of the first sheet member 13b is not limited to this embodiment, and examples include the non-skin side of the back sheet 12, near both ends in the width direction of the skin side or non-skin side of the joint of all or part of each edge of the top sheet 10 containing the absorbent body 11 inside and the back sheet 12, and near both ends in the width direction of the skin side of the top sheet 10.
第１シート部材１３ｂは撥水性及び／又は防水性を有するシートであり、例えば不織布から構成される。第１シート部材用不織布としては、疎水性繊維にて形成された撥水性及び／又は防水性（液不透過性）の不織布を特に限定なく使用でき、例えば、スパンボンド不織布、メルトブロー不織布、スパンボンド不織布／メルトブロー不織布／スパンボンド不織布積層体である複合不織布（ＳＭＳ不織布）等が挙げられる。第１シート部材１３ｂの坪量は、例えば、１０ｇ／ｍ２以上１００ｇ／ｍ２以下の範囲である。弾性伸縮部材１３ａとしては、例えば、天然ゴム、合成ゴム、ポリウレタン等からなる、糸状、紐状、帯状のものを適宜使用することができる。 The first sheet member 13b is a water-repellent and/or waterproof sheet, and is made of, for example, a nonwoven fabric. As the nonwoven fabric for the first sheet member, any water-repellent and/or waterproof (liquid-impermeable) nonwoven fabric formed of hydrophobic fibers can be used without any particular limitation, and examples thereof include spunbond nonwoven fabric, meltblown nonwoven fabric, and composite nonwoven fabric (SMS nonwoven fabric) which is a spunbond nonwoven fabric/meltblown nonwoven fabric/spunbond nonwoven fabric laminate. The basis weight of the first sheet member 13b is, for example, in the range of 10 g/m 2 or more and 100 g/m 2 or less. As the elastically stretchable member 13a, for example, a thread-shaped, string-shaped, or strip-shaped material made of natural rubber, synthetic rubber, polyurethane, or the like can be appropriately used.
（第２立体ギャザー）
第２立体ギャザー１４は、例えば、第１立体ギャザー１３を越えてくる横漏れを受け止め、横漏れが吸収性物品１の外に拡がるのを防止するために、第１立体ギャザー１３の幅方向外側に長手方向に沿って固定されている、一対の部材である。第２立体ギャザー１４の固定位置では、その下層に存在する第１立体ギャザー１３に固定される。第２立体ギャザー１４は、弾性伸縮部材１４ａと、撥水性及び／又は防水性の第２シート部材１４ｂとを含む。
(Second three-dimensional gather)
The second three-dimensional gathers 14 are, for example, a pair of members fixed along the longitudinal direction on the outer sides of the width direction of the first three-dimensional gathers 13 in order to receive side leakage that goes over the first three-dimensional gathers 13 and prevent the side leakage from spreading outside the absorbent article 1. At the fixing position of the second three-dimensional gathers 14, they are fixed to the first three-dimensional gathers 13 present below them. The second three-dimensional gathers 14 include an elastic stretchable member 14a and a water-repellent and/or waterproof second sheet member 14b.
弾性伸縮部材１４ａは、第２シート部材１４ｂの自由端（他端）付近に長手方向に沿って配設され、該自由端に起立性を付与し、第２シート部材１４ｂの自由端及びその近傍領域を着用者の体型に合わせて変形可能にする。第２シート部材１４ｂは、本実施形態では幅方向一端（固定端）がバックシート１２の肌側面において、第１シート部材１３ｂの固定端の固定位置よりも幅方向外側に固定され、幅方向途中部がトップシート１０の肌側面において、第１シート部材１３ｂの途中部の固定位置よりも幅方向外側に固定され、幅方向他端が起立性を有する自由端である。第２立体ギャザー１４（又は第２シート部材１４ｂ）の幅方向一端の固定位置（又は取付け位置）は本実施形態に限定されず、例えば、バックシート１２の非肌側面、トップシート１０とバックシート１２との袋体の幅方向端部周辺、トップシート１０の肌側面の幅方向端部周辺等が挙げられる。いずれの場合も、第１立体ギャザー１３（又は第１シート部材１３ｂ）の幅方向外側に固定される。 The elastic member 14a is arranged along the longitudinal direction near the free end (other end) of the second sheet member 14b, imparting uprightness to the free end, and allowing the free end of the second sheet member 14b and its neighboring area to be deformed to fit the wearer's body shape. In this embodiment, the second sheet member 14b has one widthwise end (fixed end) fixed on the skin side of the back sheet 12, widthwise outward from the fixed position of the fixed end of the first sheet member 13b, and the middle part of the widthwise end is fixed on the skin side of the top sheet 10, widthwise outward from the fixed position of the middle part of the first sheet member 13b, and the other widthwise end is a free end having uprightness. The fixed position (or attachment position) of one widthwise end of the second three-dimensional gather 14 (or the second sheet member 14b) is not limited to this embodiment, and may be, for example, the non-skin side of the back sheet 12, the periphery of the widthwise end of the bag body between the top sheet 10 and the back sheet 12, the periphery of the widthwise end of the skin side of the top sheet 10, etc. In either case, it is fixed to the outside of the width of the first three-dimensional gather 13 (or the first sheet member 13b).
弾性伸縮部材１４ａとしては、上述の弾性伸縮部材１３ａと同じものを使用できる。また、第２シート部材１４ｂは撥水性及び／又は防水性を有するシートであり、例えば不織布から構成される。第２シート部材用不織布としては、上述の第１シート部材用不織布と同じものを使用できる。 The elastically stretchable member 14a can be the same as the elastically stretchable member 13a described above. The second sheet member 14b is a water-repellent and/or waterproof sheet, and is made of, for example, a nonwoven fabric. The nonwoven fabric for the second sheet member can be the same as the nonwoven fabric for the first sheet member described above.
（高吸収性シート）
高吸収性シート２０は、図５及び図６に示すように、立体ギャザー非固定面を構成する不織布１７と、不織布１７に対向配置され、立体ギャザー固定面を構成するパルプ含有不織布１６と、不織布１７とパルプ含有不織布１６との間に介在する高吸収性ポリマー１８の固着担持層（以下「ＳＡＰ固着担持層」ともいう）と、を含む。ここで、立体ギャザー非固定面とは、第１立体ギャザー１３の外側面１３ｘ及び第２立体ギャザー１４の内側面に固定されない面である。立体ギャザー固定面とは、第２立体ギャザー１４の内側面１４ｘに固定され、第１立体ギャザー１３の外側面１３ｘにも固定されることがある面である。
(Highly absorbent sheet)
5 and 6, the highly absorbent sheet 20 includes a nonwoven fabric 17 constituting the non-fixed surface of the three-dimensional gathers, a pulp-containing nonwoven fabric 16 arranged opposite the nonwoven fabric 17 and constituting the fixed surface of the three-dimensional gathers, and a fixed support layer of a highly absorbent polymer 18 (hereinafter also referred to as an "SAP fixed support layer") interposed between the nonwoven fabric 17 and the pulp-containing nonwoven fabric 16. Here, the non-fixed surface of the three-dimensional gathers is a surface that is not fixed to the outer surface 13x of the first three-dimensional gathers 13 and the inner surface of the second three-dimensional gathers 14. The fixed surface of the three-dimensional gathers is a surface that is fixed to the inner surface 14x of the second three-dimensional gathers 14 and may also be fixed to the outer surface 13x of the first three-dimensional gathers 13.
ＳＡＰ固着担持層は、図６に示すように、長手方向に延びるＳＡＰ固定領域３０、不織布１７とパルプ含有不織布１６とを固定して長手方向に延びるシート固定領域３１とが幅方向に交互に配列されている。このように構成することで、ＳＡＰ固定領域３０中の高吸収性ポリマー１８がゲルブロッキングを起こしにくくなり、高吸収性シート２０が複数回の体液排出を経ても、その機能が維持される。 As shown in FIG. 6, the SAP-fixed support layer has SAP fixing regions 30 extending in the longitudinal direction and sheet fixing regions 31 that fix the nonwoven fabric 17 and the pulp-containing nonwoven fabric 16 and extend in the longitudinal direction, arranged alternately in the width direction. This configuration makes it difficult for the superabsorbent polymer 18 in the SAP fixing regions 30 to cause gel blocking, and the function of the superabsorbent sheet 20 is maintained even after multiple bodily fluid excretions.
第１実施形態に係る吸収性物品１では、図１及び図３に示すように、高吸収性シート２０は、幅方向他端である内側端が第１立体ギャザー１３の外側面１３ｘにおける、起立点よりも幅方向外側に長手方向に沿って固定され、幅方向途中部が第２立体ギャザー１４と第１立体ギャザー１３との固定界面を跨いで長手方向に沿って固定され、幅方向一端である外側端が第２立体ギャザー１４の第１立体ギャザー１３の外側面１３ｘを臨む内側面１４ｘに長手方向に沿って固定されている。この実施形態によれば、第１立体ギャザー１３を幅方向外側に越えてきた体液が高吸収性シート２０に吸収されると、高吸収性ポリマー１８の膨潤応力が発生し、第２立体ギャザー１４を起立させる（図３）。これにより、第２立体ギャザー１４が容易に起立し、尿や軟便の漏れを防ぐことができる。 In the absorbent article 1 according to the first embodiment, as shown in Figs. 1 and 3, the inner end of the highly absorbent sheet 20, which is the other end in the width direction, is fixed along the longitudinal direction on the outer surface 13x of the first three-dimensional gather 13, outward of the rising point in the width direction, the middle part in the width direction is fixed along the longitudinal direction across the fixing interface between the second three-dimensional gather 14 and the first three-dimensional gather 13, and the outer end, which is one end in the width direction, is fixed along the longitudinal direction to the inner surface 14x of the second three-dimensional gather 14 facing the outer surface 13x of the first three-dimensional gather 13. According to this embodiment, when bodily fluids that have crossed the first three-dimensional gather 13 to the outside in the width direction are absorbed by the highly absorbent sheet 20, swelling stress is generated in the highly absorbent polymer 18, causing the second three-dimensional gather 14 to rise (Fig. 3). This allows the second three-dimensional gather 14 to rise easily, preventing leakage of urine or loose stool.
第２実施形態に係る吸収性物品２では、図４に示すように、高吸収性シート２０ｂは、幅方向他端である内側端が、第１立体ギャザー１３の外側面１３ｘにおいて起立領域まで延在して長手方向に沿って固定され、幅方向途中部が、第１立体ギャザー１３の起立領域の幅方向外端から、第２立体ギャザー１４と第１立体ギャザー１３との固定界面を跨いで長手方向に沿って固定され、幅方向一端である外側端が、第２立体ギャザー１４の、第１立体ギャザー１３の外側面１３ｘを臨む幅方向内側面１４ｘに長手方向に沿って固定されている。 As shown in FIG. 4, in the absorbent article 2 according to the second embodiment, the highly absorbent sheet 20b has an inner end, which is the other widthwise end, that extends to the standing region on the outer surface 13x of the first three-dimensional gather 13 and is fixed along the longitudinal direction, a middle portion in the widthwise direction is fixed along the longitudinal direction from the outer widthwise end of the standing region of the first three-dimensional gather 13 across the fixed interface between the second three-dimensional gather 14 and the first three-dimensional gather 13, and an outer end, which is one widthwise end, that is fixed along the longitudinal direction to the inner widthwise surface 14x of the second three-dimensional gather 14 that faces the outer surface 13x of the first three-dimensional gather 13.
この実施形態によれば、排出された体液は、第１立体ギャザー１３の外側にあり、第２立体ギャザー１４の内側にある高吸収性シート２０に吸収される。そして、高吸収性シート２０内部のＳＡＰ１８が膨潤することで、図４に示すように、第１立体ギャザー１３の起立根元（又は起立点）は幅方向内側に、第２立体ギャザー１４の起立根元は幅方向外側に押され、第１立体ギャザーの起立根元と第２立体ギャザー１４の起立根元と間の空間が拡張される。この底広がりの拡張空間が形成されることにより、万一、第一立体ギャザー１３を越えた体液はこの拡張空間にトラップさせることができ、これにより、横漏れ防止効果をさらに向上させることができる。 According to this embodiment, the discharged body fluids are absorbed by the highly absorbent sheet 20 located outside the first three-dimensional gathers 13 and inside the second three-dimensional gathers 14. Then, as shown in FIG. 4, the SAP 18 inside the highly absorbent sheet 20 swells, and the rising bases (or rising points) of the first three-dimensional gathers 13 are pushed inward in the width direction, and the rising bases of the second three-dimensional gathers 14 are pushed outward in the width direction, expanding the space between the rising bases of the first three-dimensional gathers 13 and the rising bases of the second three-dimensional gathers 14. By forming this expanded space with a wide base, any body fluids that may have exceeded the first three-dimensional gathers 13 can be trapped in this expanded space, thereby further improving the effect of preventing side leakage.
好ましい実施形態では、高吸収性シート２０は、トップシート１０の長手方向において、一の途中部から他の途中部までの長さ領域に固定され、その長手方向長さが、トップシート１０の長手方向長さの１０％以上９０％以下の範囲、又は２０％以上８０％以下の範囲である。この範囲から外れた場合、高吸収性シート２０が体液を吸収して膨潤するときに、長手方向両端分の固定が外れ、第２立体ギャザー１４が外れやすくなる傾向がある。 In a preferred embodiment, the highly absorbent sheet 20 is fixed to the top sheet 10 in a length region extending from one intermediate portion to another intermediate portion in the longitudinal direction, and its longitudinal length is in the range of 10% to 90% or 20% to 80% of the longitudinal length of the top sheet 10. Outside this range, when the highly absorbent sheet 20 absorbs bodily fluids and swells, the fixation of both longitudinal ends tends to come off, and the second three-dimensional gathers 14 tend to come off easily.
他の好ましい実施形態では、高吸収性シート２０は、トップシート１０の幅方向一端及び他端から、トップシート１０の幅方向長さの１０％以上３０％以下の幅領域に固定されている。第１立体ギャザー１３の幅方向一端及び他端の、１０％未満の位置に固定する場合、第２立体ギャザー１４の固定部位が無くなり、第２立体ギャザー１４の強度が弱くなる傾向がある。第１立体ギャザー１３の幅方向一端及び他端の、３０％より大きい位置に固定する場合、高吸収性シート２０が体液を吸収して高吸収性ポリマー１８が膨潤したとき、第１立体ギャザー１３が起立しにくくなる傾向がある。 In another preferred embodiment, the highly absorbent sheet 20 is fixed to a width region of 10% to 30% of the width of the top sheet 10 from one end and the other end in the width direction. If the highly absorbent sheet 20 is fixed to a position less than 10% of one end and the other end in the width direction of the first three-dimensional gathers 13, the fixing portion of the second three-dimensional gathers 14 disappears, and the strength of the second three-dimensional gathers 14 tends to be weakened. If the highly absorbent sheet 20 is fixed to a position more than 30% of one end and the other end in the width direction of the first three-dimensional gathers 13, when the highly absorbent sheet 20 absorbs bodily fluids and the highly absorbent polymer 18 swells, the first three-dimensional gathers 13 tend to be difficult to stand up.
別の好ましい実施形態では、高吸収性シート２０は、第１立体ギャザー１３、及び第２立体ギャザー１４に固定されるが、第１立体ギャザー１３、及び第２立体ギャザー１４に固定された弾性部材１３ａ、１４ａの位置よりも、厚み方向の低い位置に固定される。弾性部材１３ａ、１４ａの位置よりも高い位置に固定された場合、第１立体ギャザー１３、及び第２立体ギャザー１４と高吸収性シート２０が肌に当たる際、着用者が硬さを感じる傾向がある。 In another preferred embodiment, the highly absorbent sheet 20 is fixed to the first three-dimensional gathers 13 and the second three-dimensional gathers 14, but at a lower position in the thickness direction than the positions of the elastic members 13a, 14a fixed to the first three-dimensional gathers 13 and the second three-dimensional gathers 14. If it is fixed at a higher position than the positions of the elastic members 13a, 14a, the wearer tends to feel a stiffness when the first three-dimensional gathers 13, the second three-dimensional gathers 14 and the highly absorbent sheet 20 come into contact with the skin.
立体ギャザー非固定面を構成する不織布１７には、体液が高吸収性シート２０の内部へと移動するような液透過性を有する不織布を使用でき、例えば、サーマルボンド不織布、エアスルー不織布等の単体不織布、サーマルボンド不織布／スパンボンド不織布積層体、等の複合不織布等が挙げられる。また、立体ギャザー非固定面を構成する不織布１７に代えて液透過性シート基材を使用でき、例えば、開口ポリエチレンフィルム等の開口性フィルム、ポリエチレンフォーム、ウレタンフォーム等の発泡フィルム、これら２種以上の積層体である複合シート等が挙げられる。また、不織布１７と、前記した液透過性シート基材との積層体も使用できる。これらの中でも、エアスルー不織布が好ましい。不織布１７の坪量は、例えば、１４ｇ／ｍ２以上４０ｇ／ｍ２以下の範囲である。 The nonwoven fabric 17 constituting the three-dimensional gather non-fixing surface can be a nonwoven fabric having liquid permeability such that bodily fluids move into the inside of the highly absorbent sheet 20, and examples thereof include single nonwoven fabrics such as thermal bond nonwoven fabrics and air-through nonwoven fabrics, and composite nonwoven fabrics such as thermal bond nonwoven fabric/spunbond nonwoven fabric laminates. In addition, a liquid-permeable sheet substrate can be used instead of the nonwoven fabric 17 constituting the three-dimensional gather non-fixing surface, and examples thereof include an open-type film such as an open-type polyethylene film, a foamed film such as a polyethylene foam or a urethane foam, and a composite sheet which is a laminate of two or more of these. A laminate of the nonwoven fabric 17 and the above-mentioned liquid-permeable sheet substrate can also be used. Among these, an air-through nonwoven fabric is preferable. The basis weight of the nonwoven fabric 17 is, for example, in the range of 14 g/m 2 to 40 g/m 2 .
立体ギャザー固定面を構成するパルプ含有不織布１６は、例えば、上述したように、高吸収性シート２０の体液吸収を補助する機能を有している。パルプ含有不織布１６は、スパンボンド不織布とパルプ繊維層とを一体化した不織布シートである。このような不織布シートとしては、例えば、スパンボンド不織布を構成する繊維とパルプ繊維とを併用して不織布として作製した混在型不織布シート、スパンボンド不織布とパルプ繊維からなる不織布とを重ね合わせ、加圧処理及び／加熱処理を施して得られる圧着又は融着型不織布シート、スパンボンド不織布とパルプ繊維からなる不織布とを比較的少量の接着剤で接合した接着型不織布シート、水流交絡法によりスパンボンド不織布に水流及びパルプ繊維を吹き付けて得られる水流交絡型不織布シート等が挙げられる。なお、水流交絡型不織布シートでは、スパンボンド不織布にパルプ繊維が絡みつき、不織布の一方の表面にパルプ繊維層が形成されるだけでなく、他方の面にもスパンボンド不織布内部を通過してきたパルプ繊維が部分的に突出したり、絡みついたりしていることがある。これらの不織布シートの中でも、パルプ繊維層の機能を十分に発揮させる観点から、水流交絡型不織布シートが好ましい。 The pulp-containing nonwoven fabric 16 constituting the three-dimensional gather fixing surface has a function of assisting the body fluid absorption of the highly absorbent sheet 20, for example, as described above. The pulp-containing nonwoven fabric 16 is a nonwoven fabric sheet in which a spunbond nonwoven fabric and a pulp fiber layer are integrated. Examples of such nonwoven fabric sheets include a mixed type nonwoven fabric sheet made by combining the fibers constituting the spunbond nonwoven fabric with pulp fibers, a pressure-bonded or fusion-bonded type nonwoven fabric sheet obtained by overlapping a spunbond nonwoven fabric and a nonwoven fabric made of pulp fibers and applying a pressure treatment and/or a heat treatment, an adhesive type nonwoven fabric sheet in which a spunbond nonwoven fabric and a nonwoven fabric made of pulp fibers are bonded with a relatively small amount of adhesive, and a hydroentangled type nonwoven fabric sheet obtained by spraying a water flow and pulp fibers onto a spunbond nonwoven fabric by a hydroentanglement method. In addition, in hydroentangled nonwoven fabric sheets, not only do pulp fibers become entangled with the spunbonded nonwoven fabric, forming a pulp fiber layer on one surface of the nonwoven fabric, but pulp fibers that have passed through the inside of the spunbonded nonwoven fabric may also partially protrude or become entangled on the other surface. Among these nonwoven fabric sheets, hydroentangled nonwoven fabric sheets are preferred from the viewpoint of fully utilizing the function of the pulp fiber layer.
ＳＡＰ固着担持層のＳＡＰ固定領域３０に用いられる高吸収性ポリマー（ＳＡＰ）１８としては、体液を吸収し、かつ、逆流を防止できるものを特に制限なく使用でき、例えば、ポリアクリル酸塩、ポリアスパラギン酸塩、（デンプン－アクリル酸）グラフト共重合体、（アクリル酸－ビニルアルコール）共重合体、（イソブチレン－無水マレイン酸）共重合体及びそのケン化物等が挙げられる。これらの中でも、重量当たりの吸収量の観点から、ポリアクリル酸塩が好ましく、ポリアクリル酸ナトリウムがより好ましい。高吸収性ポリマー１８は１種を単独で又は２種以上を組み合わせて使用できる。ＳＡＰ１８の坪量は、各種の吸収性物品に要求される吸収性能を確保する観点から、例えば、２００ｇ／ｍ２以上１２００ｇ／ｍ２以下の範囲である。また、吸収性能、吸収後の肌触り及び着用者の動きやすさをより向上させる観点から、ＳＡＰ１８の坪量は、例えば、３００ｇ／ｍ２以上９００ｇ／ｍ２以下の範囲である。 The superabsorbent polymer (SAP) 18 used in the SAP fixing region 30 of the SAP fixing support layer can be any polymer that can absorb body fluids and prevent backflow, and examples of such polymers include polyacrylates, polyaspartates, (starch-acrylic acid) graft copolymers, (acrylic acid-vinyl alcohol) copolymers, (isobutylene-maleic anhydride) copolymers, and saponified products thereof. Among these, polyacrylates are preferred, and sodium polyacrylate is more preferred, from the viewpoint of the absorption amount per weight. The superabsorbent polymer 18 can be used alone or in combination of two or more types. The basis weight of the SAP 18 is, for example, in the range of 200 g/m 2 or more and 1200 g/m 2 or less, from the viewpoint of ensuring the absorption performance required for various absorbent articles. In addition, the basis weight of the SAP 18 is, for example, in the range of 300 g/m 2 or more and 900 g/m 2 or less , from the viewpoint of further improving the absorption performance, the feel after absorption, and the ease of movement of the wearer.
また、粉体としての流動性が悪い微粉末のＳＡＰ１８は、パルプ含有不織布１６又は不織布１７からの漏出防止、ＳＡＰ１８が硬くなることにより発生するごつごつした触感の低減等の観点から、ＳＡＰ１８の粒子径は、例えば、５０μｍ以上６００μｍ以下の範囲、又は１００μｍ以上５００μｍ以下の範囲である。 In addition, the particle size of SAP18, which is a fine powder having poor fluidity as a powder, is, for example, in the range of 50 μm to 600 μm, or in the range of 100 μm to 500 μm, from the viewpoints of preventing leakage from the pulp-containing nonwoven fabric 16 or nonwoven fabric 17 and reducing the rough feel caused by the hardening of SAP18.
高吸収性シート２０の好ましい実施形態では、高吸収性ポリマー１８は、パルプ含有不織布１６と不織布１７との間に、ホットメルト接着剤により固着担持されている。なお、高吸収性ポリマー１８の吸収性を阻害せず、かつ、着用時の肌触りを損なわない観点から、ホットメルト接着剤の含有量は例えば１０ｇ／ｍ２以下の範囲である。ホットメルト接着剤としては、融点が１００℃以上１８０℃以下の、スチレン－ブタジエン－スチレン系共重合体やスチレン－イソプレン－スチレン系共重合体等の合成ゴム系ホットメルト接着剤、エチレン－酢酸ビニル共重合体等のオレフィン系ホットメルト接着剤が挙げられる。ホットメルト接着剤の塗布方法としては、ノズルから溶融状態のホットメルト接着剤を非接触式で塗布するカーテンコート法やスパイラル法、接触式で塗布するスロット法等の公知の方法が利用できる。なお、ホットメルト接着剤は、シート固定領域３１でのパルプ含有不織布１６と不織布１７との接合や、後述する高吸収性シート２０の固定にも用いられる。 In a preferred embodiment of the highly absorbent sheet 20, the highly absorbent polymer 18 is fixed and supported between the pulp-containing nonwoven fabric 16 and the nonwoven fabric 17 by a hot melt adhesive. In order not to impair the absorbency of the highly absorbent polymer 18 and not to impair the feel on the skin when worn, the content of the hot melt adhesive is, for example, in the range of 10 g/m 2 or less. Examples of the hot melt adhesive include synthetic rubber-based hot melt adhesives such as styrene-butadiene-styrene copolymers and styrene-isoprene-styrene copolymers, and olefin-based hot melt adhesives such as ethylene-vinyl acetate copolymers, each having a melting point of 100°C or more and 180°C or less. As a method for applying the hot melt adhesive, known methods such as a curtain coat method or a spiral method in which a molten hot melt adhesive is applied from a nozzle in a non-contact manner, and a slot method in which a hot melt adhesive is applied in a contact manner can be used. In addition, the hot melt adhesive is also used for joining the pulp-containing nonwoven fabric 16 and the nonwoven fabric 17 in the sheet fixing region 31 and for fixing the highly absorbent sheet 20 described later.
高吸収性シート２０は、ホットメルト接着剤により、第１立体ギャザー１３の外側面１３ｘと第２立体ギャザー１４の内側面１４ｘに固定されている。なお、高吸収性シート２０中の高吸収性ポリマー１８の吸収性を阻害せず、かつ、着用時の肌触りを損なわない観点から、ホットメルト接着剤の含有量は例えば１０ｇ／ｍ２以下の範囲である。ここで、ホットメルト接着剤としては、ＳＡＰ固着担持層のＳＡＰ固定領域３０中の高吸収性ポリマー１８の固着担持に用いられるホットメルト接着剤と同じものの中から適宜選択して使用でき、また、塗布方法も同じ方法から適宜選択して使用できる。 The superabsorbent sheet 20 is fixed to the outer surface 13x of the first three-dimensional gathers 13 and the inner surface 14x of the second three-dimensional gathers 14 by a hot melt adhesive. In order not to impair the absorbency of the superabsorbent polymer 18 in the superabsorbent sheet 20 and not to impair the feel against the skin when worn, the content of the hot melt adhesive is, for example, in the range of 10 g/ m2 or less. Here, the hot melt adhesive can be appropriately selected from the same hot melt adhesives used for fixing and supporting the superabsorbent polymer 18 in the SAP fixing region 30 of the SAP fixing support layer, and the application method can also be appropriately selected from the same methods.
本実施形態では、排出された体液は、第２立体ギャザー１４の内側面１４ｘに固定された高吸収性シート２０にも吸収される。これにより、高吸収性シート２０内部のＳＡＰ１８が膨潤することで、第２立体ギャザー１４が起立する。このように、二重の横漏れ防止機構を設けることにより、横漏れをほぼ確実に防止できると共に、体液が着用者自身及びその着衣にも付着し難くなるので、衛生的である。 In this embodiment, the discharged body fluids are also absorbed by the highly absorbent sheet 20 fixed to the inner surface 14x of the second three-dimensional gathers 14. This causes the SAP 18 inside the highly absorbent sheet 20 to swell, causing the second three-dimensional gathers 14 to stand up. In this way, by providing a double side leakage prevention mechanism, side leakage can be almost completely prevented, and body fluids are less likely to adhere to the wearer and their clothing, making it hygienic.
＜吸収性物品の製造方法＞
吸収性物品１、２の製造方法としては、特に限定はなく、従来公知の方法を採用することができ、例えば、衣類側から、バックシート１２、吸収体１１、トップシート１０の順に積層し、トップシート１０とバックシート１２とを一部又は全周に亘ってホットメルト接着剤やヒートエンボス、超音波エンボス、高周波エンボス等を用いて固定した上で、第１立体ギャザー１３を所定の位置に固定し、さらにその幅方向外側に高吸収性シート２０、更にその外側に第２立体ギャザー１４を固定することで、吸収性物品１、２を製造することができる。第２立体ギャザー１４を固定した後に、高吸収性シート２０を固定してもよい。こうして得られた吸収性物品１、２を包装体に個別包装した後、長手方向に３つ折りにして折り畳むことにより、市販製品が得られる。
<Method of manufacturing absorbent articles>
The manufacturing method of the absorbent articles 1 and 2 is not particularly limited, and a conventionally known method can be adopted. For example, the back sheet 12, absorbent body 11, and top sheet 10 are laminated in this order from the clothing side, and the top sheet 10 and the back sheet 12 are fixed partially or entirely around the periphery using a hot melt adhesive, heat embossing, ultrasonic embossing, high frequency embossing, or the like, and then the first three-dimensional gathers 13 are fixed at a predetermined position, and the high absorbency sheet 20 is fixed on the widthwise outer side thereof, and the second three-dimensional gathers 14 are fixed further on the outer side thereof, thereby manufacturing the absorbent articles 1 and 2. The high absorbency sheet 20 may be fixed after the second three-dimensional gathers 14 are fixed. The absorbent articles 1 and 2 obtained in this manner are individually packaged in a package, and then folded in thirds in the longitudinal direction to obtain a commercially available product.
以上、実施形態を用いて本発明を説明したが、本発明の技術的範囲は上記実施形態に記載の範囲には限定されないことは言うまでもない。上記実施形態に、多様な変更または改良を加えることが可能であることは当業者に明らかである。また、その様な変更または改良を加えた形態も本発明の技術的範囲に含まれ得ることが、特許請求の範囲の記載から明らかである。 Although the present invention has been described above using embodiments, it goes without saying that the technical scope of the present invention is not limited to the scope described in the above embodiments. It will be clear to those skilled in the art that various modifications and improvements can be made to the above embodiments. Furthermore, it is clear from the claims that forms incorporating such modifications or improvements can also be included in the technical scope of the present invention.
１、２ 吸収性物品
１０ トップシート
１１ 吸収体
１２ バックシート
１３ 第１立体ギャザー
１３ａ 弾性伸縮部材
１３ｂ 第１シート部材
１３ｘ 第１立体ギャザーの外側面
１４ 第２立体ギャザー
１４ａ 弾性伸縮部材
１４ｂ 第２シート部材
１４ｘ 第２シート部材の内側面
１６ パルプ含有不織布
１７ 不織布
１８ 高吸収性ポリマー
２０、２０ｂ 高吸収性シート
３０ ＳＡＰ固定領域
３１ シート固定領域
Reference Signs List 1, 2 Absorbent article 10 Top sheet 11 Absorbent body 12 Back sheet 13 First three-dimensional gather 13a Elastically stretchable member 13b First sheet member 13x Outer surface of first three-dimensional gather 14 Second three-dimensional gather 14a Elastically stretchable member 14b Second sheet member 14x Inner surface of second sheet member 16 Pulp-containing nonwoven fabric 17 Nonwoven fabric 18 Superabsorbent polymer 20, 20b Superabsorbent sheet 30 SAP fixing region 31 Sheet fixing region
Claims (5)
前記トップシートの肌側面の幅方向両端付近に長手方向に沿って固定され、起立領域としての遊離端とその近傍領域を有し、撥水性及び／又は防水性のシートを含む一対の第１立体ギャザーと、
前記一対の第１立体ギャザーの幅方向外側に長手方向に沿って固定された、撥水性及び／又は防水性のシートを含む一対の第２立体ギャザーと、
前記第１立体ギャザーの幅方向外側から前記第２立体ギャザーの幅方向内側までの長手方向に延びる領域で、幅方向の一端である外側端が前記第２立体ギャザーの幅方向内側面に固定されて長手方向に延びる一対の高吸収性シートと、を更に備え、
前記高吸収性シートは、前記第１立体ギャザー及び前記第２立体ギャザーに固定されない不織布と、前記不織布に対向配置され、少なくとも前記第２立体ギャザーの前記幅方向内側面に固定されるパルプ含有不織布と、これらの間に配置された高吸収性ポリマーの固着担持層と、を含み、
前記パルプ含有不織布は、スパンボンド不織布と、前記スパンボンド不織布の少なくとも一方の表面に一体化されたパルプ繊維層と、を含むことを特徴とする、吸収性物品。 An absorbent article comprising a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent body disposed between the top sheet and the back sheet,
A pair of first three-dimensional gathers are fixed along a longitudinal direction near both ends in a width direction of the skin side of the top sheet, have free ends as standing regions and adjacent regions, and include a water-repellent and/or waterproof sheet;
A pair of second three-dimensional gathers including a water-repellent and/or waterproof sheet fixed along a longitudinal direction on the widthwise outer sides of the pair of first three-dimensional gathers;
a pair of highly absorbent sheets extending in the longitudinal direction in a region extending in the longitudinal direction from the outer side in the width direction of the first three-dimensional gather to the inner side in the width direction of the second three-dimensional gather, the outer end being one end in the width direction and fixed to the inner side surface in the width direction of the second three-dimensional gather;
The highly absorbent sheet includes a nonwoven fabric that is not fixed to the first three-dimensional gathers and the second three-dimensional gathers, a pulp-containing nonwoven fabric that is disposed opposite the nonwoven fabric and is fixed to at least the widthwise inner surface of the second three-dimensional gathers, and a fixed support layer of a highly absorbent polymer that is disposed between them,
The pulp-containing nonwoven fabric comprises a spunbonded nonwoven fabric and a pulp fiber layer integrated on at least one surface of the spunbonded nonwoven fabric.
幅方向他端である内側端が、前記第１立体ギャザーの前記起立領域まで延在し、
幅方向途中部が、前記第１立体ギャザーの前記起立領域の幅方向外端から前記第２立体ギャザーの固定界面を跨ぐ幅領域に固定され、
幅方向一端である前記外側端が、前記第２立体ギャザーの幅方向内側面に固定されている、請求項１に記載の吸収性物品。 The highly absorbent sheet is
The inner end, which is the other end in the width direction, extends to the standing region of the first three-dimensional gather,
The width direction intermediate portion is fixed to a width region spanning from the width direction outer end of the standing region of the first three-dimensional gather to the fixed interface of the second three-dimensional gather,
The absorbent article according to claim 1 , wherein the outer end, which is one end in the width direction, is fixed to an inner side surface in the width direction of the second standing gather.
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| JP2008086494A (en) | 2006-09-29 | 2008-04-17 | Daio Paper Corp | Absorptive article |
| JP2011072612A (en) | 2009-09-30 | 2011-04-14 | Livedo Corporation | Auxiliary absorber |
| JP2011206108A (en) | 2010-03-29 | 2011-10-20 | Daio Paper Corp | Absorbent article |
| CN108451722A (en) | 2017-02-18 | 2018-08-28 | 长沙文之日化有限公司 | A kind of Novel diaper of lateral leakage protection |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008086494A (en) | 2006-09-29 | 2008-04-17 | Daio Paper Corp | Absorptive article |
| JP2011072612A (en) | 2009-09-30 | 2011-04-14 | Livedo Corporation | Auxiliary absorber |
| JP2011206108A (en) | 2010-03-29 | 2011-10-20 | Daio Paper Corp | Absorbent article |
| CN108451722A (en) | 2017-02-18 | 2018-08-28 | 长沙文之日化有限公司 | A kind of Novel diaper of lateral leakage protection |
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